WO2009122593A1

WO2009122593A1 - Auto-reject device for sheeter

Info

Publication number: WO2009122593A1
Application number: PCT/JP2008/056801
Authority: WO
Inventors: 勝義角本
Original assignee: 日本ボールドウィン株式会社
Priority date: 2008-04-04
Filing date: 2008-04-04
Publication date: 2009-10-08

Abstract

An auto-reject device, which is loaded on a high speed operation sheeter attached to a printing machine such as a web press and extracts a reject sheet by advancing it to a direction different from sheet discharge. A conversion part (7) holding a tip of a continuous sheet (2), which becomes the reject sheet, from the continuous sheet (2) that is cut by a cutting part (4) by a reject signal and advancing the sheet to the direction different from regular sheet discharge is arranged. The continuous sheet (2) transferred from the conversion part (7) is cut by the cutting part (4), is transferred to a belt conveyance part (8) as the reject sheet (2B) and the reject sheet (2B) transferred via a deceleration conveyance part (9) is stored in a reject sheet storage box (13). Since a part of the defective print sheet can precisely be taken out from print sheets which are continuously discharged in the sheeter attached to the web printer of a high speed operation, a holding rate of the good sheet can remarkably be improved, and complication with discharge work of the defective print sheet can also remarkably be dissolved. Since the good sheet for an inspection sheet can precisely be extracted, counting management can precisely be performed.

Description

Theta auto-reject device

The present invention relates to an auto-reject device for a theta that uses a theta attached to a high-speed rotary printing press to adsorb the leading edge of the cut subsequent paper, and changes the direction of travel to a different traveling direction from the sheet ejection.

For example, Patent Document 1 and Patent Document 2 propose a temporary paper receiving device that temporarily holds a subsequent sheet that enters in a tiled state at a sheet discharge portion of the theta. The conventional temporary paper receiving device is a temporary paper receiving device at the time of paper discharge pile replacement, and the subsequent paper is again stacked on the pile. Therefore, in order to remove (reject) the mixed defective printing paper, it is necessary to manually remove it.
Further, for example, Patent Document 3 and Patent Document 4 have proposed sheet material sorting and extraction techniques. In these prior arts, sheet materials and sheets are used only for machines that are conveyed in a separate form, and therefore cannot be applied to high-speed operation such as a theta attached to a rotary printing press.

Japanese Utility Model Publication No. 2-119470 JP 2003-341910 A JP 2002-114427 A JP 2001-171888 A

SUMMARY OF THE INVENTION An object of the present invention is to provide an auto-reject device that is mounted on a high-speed driving sheeter attached to a printing machine such as a rotary printing press and removes the reject paper by proceeding in a direction different from the progress to the bar stacking section. There is to do.

In order to achieve the above object, the theta auto-reject apparatus according to the invention of claim 1 cuts the continuous paper conveyed from the printing unit into sheets by the cutting unit, conveys the sheet and discharges it. A theta attached to a printing machine,
Holding the leading edge of the continuous paper that is rejected from the continuous paper that is cut by the sheet cutting section, and cutting the continuous paper delivered from the conversion means to move in a direction different from the direction to the paper discharge section A conveying unit that cuts the sheet and conveys it as reject paper, and a reject paper storage unit that is provided at a location different from the paper discharge unit and that stores the reject paper conveyed by the conveying unit. .

According to a second aspect of the present invention, in the first aspect, the converting means has a length corresponding to the paper width, and includes a rotating body that holds the leading end of the continuous paper at a plurality of positions in the paper width direction. It is arranged on the continuous paper conveyance path.

According to a third aspect of the present invention, in the second aspect of the present invention, the rotary member of the conversion means has a decompression chamber formed therein, and the suction hole that is open to the peripheral surface and communicates with the decompression chamber extends in the longitudinal direction according to the paper width. A plurality of rotating bodies arranged in the rotating body, and a valve portion composed of a valve having a valve seat with the edge of the suction hole as a valve seat, and incorporated in the rotating body, the cutting timing of the cutting portion is determined by a reject signal. A valve operating unit is provided that operates each valve to perform the respective valve operations of suctioning the leading edge of continuous paper that becomes rejected paper when the valve is opened or non-sucking continuous paper when the valve is closed.

The invention of claim 4 is characterized in that, in claim 3, the valve operating section performs each valve operation of opening and closing the valve every rotation of the rotating body of the conversion means while the reject signal is output. *

According to a fifth aspect of the present invention, in the third aspect, the valve operating portion of the conversion means has a lever fixed to a rotatable shaft extending in the longitudinal direction inside the rotating body, and the valve member is operated by swinging the lever. It is characterized by making it.

The invention of claim 6 is characterized in that, in claim 1, the conversion means, the conveyance means, and the reject paper storage means are arranged on the upper side or the lower side of the conveyance path to the sheet discharge portion of the theta. *

The invention of claim 7 is characterized in that in claim 5, a stopper mechanism for restraining the swinging of the lever is provided.

The invention of claim 8 is characterized in that, in claim 2, the rotating body of the conversion means is a cutter cylinder of a cutting part.

The invention of claim 9 is characterized in that, in claim 8, the valve of the conversion means is disposed in the vicinity of the peripheral surface immediately after the rotary blade of the cutter body.

According to a tenth aspect of the present invention, in the ninth aspect, a suction roller is disposed close to the cutter cylinder, and the continuous paper adsorbed on the cutter cylinder is sucked and delivered to the suction roller by the function of the conversion means, and then cut. The reject paper cut at the section is transferred to the conveying means via the suction roller.

According to an eleventh aspect of the present invention, in the ninth aspect, a suction roller is disposed close to the cutter cylinder, and a lever is fixed to a rotatable shaft in which the valve operating portion of the conversion means extends in the longitudinal direction inside the cutter cylinder. The valve member is configured to be actuated by swinging the lever, and when the valve member is in a position slightly retracted from the cylinder circumferential surface of the cutter cylinder, the bubble is closed and the suction operation is performed. When the valve is in a position that is substantially flush with the bubble, the suction operation is performed when the bubble is opened. When the paper is in the pushed-up position, the continuous paper is pushed up and adsorbed to the suction roller to be delivered, and then the reject paper cut by the cutting section is sent to the suction paper. And wherein the transfer of the conveying means through the over la.

The invention of claim 12 is characterized in that, in claim 11, a cam fixed concentrically with the rotation center of the cutter cylinder is provided, and the lever is swung by rotating the shaft by the cam.

According to a thirteenth aspect of the present invention, in the second aspect of the present invention, the rotating member of the conversion means is a drag roller that is disposed on the downstream side of conveyance of the cutting unit and applies tension to the continuous paper.

The invention of a fourteenth aspect is the one according to the thirteenth aspect, wherein the drag roller is provided with a valve operating portion, and the valve operating portion is fixed to a rotatable shaft penetrating in the longitudinal direction of the drag roller; An electromagnetic actuator for rotating the shaft,
While the reject signal is output, the valve member is actuated by the rotation of the eccentric cam for each rotation of the drag roller to perform each valve operation of opening and closing the valve.

According to a fifteenth aspect of the present invention, the drag roller according to the thirteenth aspect includes a decompression chamber formed therein, and is open to the circumferential surface of the roller and communicated with the decompression chamber. An array of suction holes, a valve portion comprising a valve with a valve seat as a hole seat of the suction holes, and a reject signal when the valve is operated by opening a valve in relation to the cutting timing of the cutting portion by a reject signal A valve operating unit for performing each valve operation of adsorbing the leading end of the continuous paper or non-adsorbing the continuous paper when the valve is closed, and suspending the respective adsorbing holes so as to cover the adsorbing holes in a region facing the continuous paper conveyance path. A perforating belt that rotates at the same peripheral speed as the drag roller and sucks the reject paper through the suction holes, and the transport belt of the transport means is a perforated belt of the drag roller. In being extended, characterized in that removing the rejected paper from drag roller in cooperation with said transport belt and perforated belts.

The invention of claim 16 is the suction according to claim 15, wherein the peripheral surface of the drag roller on which the perforated belt is suspended is slightly narrower than the width of the perforated belt and has at least one hole of the perforated belt. An area is formed, and suction holes are provided in the suction area.

The invention according to claim 17 is the invention according to claim 15, wherein the valve operating portion includes an eccentric cam fixed to a rotatable shaft that is penetrated in a longitudinal direction of the drag roller, and an electromagnetic actuator that rotates the shaft.
While the reject signal is output, the valve member is operated by the rotation of the eccentric cam to maintain the valve open state.

According to an eighteenth aspect of the present invention, the drag roller according to the thirteenth aspect includes a decompression chamber formed therein, and is open to the circumferential surface of the roller and communicated with the decompression chamber. The arranged suction holes, a valve disposed in a passage communicating the suction chamber and the suction hole, and opening and closing the passage by rotation with the longitudinal direction of the rotating body as a valve shaft, and cutting timing of the cutting portion by a reject signal A valve operating unit for operating the valve, and each suction hole is suspended so as to cover each suction hole in a region facing the continuous paper conveyance path, and the reject paper is sucked through each suction hole. And a perforated belt to
The conveying belt of the conveying means extends to the perforated belt of the drag roller, and the perforated belt and the conveying belt cooperate to remove the reject paper from the drag roller.

According to a nineteenth aspect of the present invention, in the eighteenth aspect of the invention, an elongated concave portion opened in the longitudinal direction is formed on the peripheral surface of the drag roller, and openings of a plurality of passages leading to the decompression chamber are provided at the bottom of the concave portion. And a block that is substantially equal to the length of the drag roller and is fitted into the recess, the block having an outer surface that is a part of the peripheral surface of the drag roller, and is open to the outer surface, and the plurality of passages A plurality of suction holes facing each other, a plurality of passages leading to the decompression chamber are provided with block passages individually communicating with the respective suction holes, and a valve hole is formed across the block passage, A valve is incorporated in the valve hole of the block.

The invention of claim 20 is characterized in that, in claim 19, a suction area in which the outer surface of the block is slightly narrower than the width of the perforated belt and has at least one hole of the perforated belt is formed. It is characterized in that the suction hole is opened.

According to a twenty-first aspect of the present invention, in the eighteenth aspect, the valve operating portion includes an electromagnetic actuator that rotates the valve shaft at the roller end of the drag roller,
While the reject signal is output, the valve is operated by the rotation of the valve shaft, and the valve is kept open.

According to a twenty-second aspect of the present invention, in the first aspect, the conversion means has a length corresponding to the paper width, is disposed on the continuous paper conveyance path in the theta, has a decompression chamber formed therein, A rotating body having a plurality of suction holes that are open to the surface and communicated with the decompression chamber in the longitudinal direction according to the paper width;
A plurality of valves incorporated in the rotating body and arranged in a path formed independently between the decompression chamber and each suction hole;
A valve operating section that operates for each valve in relation to the cutting timing of the cutting section by a reject signal,
The valve is characterized in that each valve operation is performed such that the continuous paper is adsorbed when the valve is opened or the continuous paper is not adsorbed when the valve is closed.

According to a twenty-third aspect of the present invention, in the twenty-second aspect, the rotating body of the conversion means is a valve chamber, a manifold built in the valve chamber, having a vacuum path leading to the decompression chamber and an atmospheric path leading to the atmosphere, A cover member of the valve chamber having an outer surface which is a part of the peripheral surface and provided with a suction hole opened on the outer surface; a suction hole of the cover member incorporated in the valve chamber; and a vacuum of the manifold And an electromagnetic vacuum valve that opens and closes a path leading to the path or the atmospheric path.

According to a twenty-fourth aspect of the invention, in the twenty-third aspect, the electromagnetic vacuum valve is turned on / off for each rotation of the rotating body of the conversion means while the reject signal is output, thereby opening and closing the valve. .

A twenty-fifth aspect of the present invention is the drag roller according to the twenty-third aspect, wherein the rotating body of the conversion means is disposed on the downstream side of the cutting unit in the conveyance, and applies tension to the continuous paper. A conveying belt for conveying means, comprising a perforating belt that is suspended over the respective suction holes in a region facing the path, rotates at the same peripheral speed as the drag roller, and sucks reject paper through the respective suction holes; Is extended to the perforated belt of the drag roller, and the reject paper is removed from the drag roller by the cooperation of the conveying belt and the perforated belt.

The invention of claim 26 is characterized in that, in claim 25, a suction area in which the width of the perforated belt is slightly narrower and at least one hole of the perforated belt exists is formed on the outer surface of the covering member, The suction hole is opened in the suction area.

The invention of claim 27 is characterized in that, in claim 25, the electromagnetic vacuum valve is turned on and held in the valve open state while the reject signal is output.

According to a twenty-eighth aspect of the present invention, in the twenty-second and twenty-fourth aspects, the valve operating unit can set a valve to be used in accordance with a paper width.

The invention of claim 29 is the paper stabbed portion comprising a plurality of needles that are arranged in parallel in the longitudinal direction of the rotating body, and that can be projected and retracted toward the conveyance path.
A paper stab operation unit for operating the needle to move in and out in relation to the cutting timing of the cutting unit by a reject signal,
The paper stab operating unit includes an eccentric cam fixed to a rotatable shaft that is penetrated in a longitudinal direction of the rotating body, an electromagnetic actuator that rotates the shaft, and the needle by rotating the eccentric cam. It is characterized in that the progress of the continuous paper is changed by piercing the leading edge of the continuous paper that protrudes from the peripheral surface and becomes reject paper.

A thirty-third aspect of the invention is characterized in that, in the twenty-ninth aspect, the rotating member of the conversion means is a drag roller that is arranged on the downstream side of conveyance of the cutting portion and applies tension to the continuous paper.

According to the first aspect of the present invention, the defective printing paper portion can be accurately taken out from the printing paper continuously discharged by the theta attached to the high-speed rotary printing press. Therefore, the complexity associated with taking out defective printing paper can be drastically eliminated. In addition, since good paper can be extracted accurately for inspection, counting management can be performed with high accuracy.

According to the second to fifth aspects of the present invention, since the converting means is incorporated in the rotating body, the leading edge of the continuous paper can be held at high speed and accurately, and defective printed paper or the like can be taken out accurately.

According to the sixth aspect of the present invention, since the conversion means, the conveyance means, and the reject paper storage means are arranged on the upper side or the lower side of the sheet feeding / conveying path of the theta, they are free without adversely affecting other operations. It is possible to make a compact device by effectively utilizing the existing space.

According to the invention of claim 7, since the stopper mechanism for restraining the swing of the arm is used, the non-adsorption operation of the continuous paper can be reliably controlled.

According to the invention of claim 8, since the rotating body of the conversion means is a cutter cylinder of the cutting part, and the valve operating part is provided in the cutter cylinder, each operation of cutting and continuous paper adsorption and non-adsorption Since the cutter body also serves as the rotating body of the conversion means, the apparatus becomes very compact.

According to the ninth aspect of the invention, since the valve of the conversion means is disposed in the vicinity of the peripheral surface immediately after the rotary blade of the cutter cylinder, the continuous paper between the rotary blade of the cutter cylinder and the valve of the conversion means is loosened. The leading edge of the continuous paper that becomes the reject paper can be accurately adsorbed.

According to the invention of claim 10, the continuous paper adsorbed on the cutter cylinder is adsorbed to the suction roller and delivered, and then the reject paper cut by the cutter cylinder is transferred to the conveying means via the suction roller, thereby discharging direction Therefore, it is possible to smoothly remove the reject paper with an apparatus having a simple configuration.

According to the eleventh aspect of the present invention, as the valve function of the conversion means, in addition to the adsorption and non-adsorption of the continuous paper, the reject paper is constituted by a push-up valve having a function of pushing up the continuous paper from the circumferential surface of the cutter The continuous paper is surely separated from the peripheral surface and can be reliably sucked and delivered to the next suction roller, and then the reject paper cut by the cutting section is transferred to the conveying means via the suction roller. Each operation can be performed reliably.

According to the twelfth aspect of the present invention, the cam is fixed concentrically with the rotation center of the cutter cylinder, and the shaft is rotated by the cam to swing the lever, thereby stabilizing the operation during high speed operation. Sex is secured.

According to the thirteenth aspect of the present invention, by incorporating the conversion means into the drag roller, the conversion means becomes simpler than the case where the valve of the conversion means is located in the cutter body, and the manufacture of the apparatus is facilitated. *

According to the invention of claim 14, a plurality of valves can be operated simultaneously with a simple configuration of the valve operating section.

According to the fifteenth aspect of the present invention, the reject paper is removed from the drag roller by the cooperation of the transport belt and the perforated belt, and can be reliably delivered to the transport section.

According to the sixteenth aspect of the present invention, since at least one hole of the perforated belt exists in the suction area of the peripheral surface of the drag roller, the reject paper can be reliably absorbed and converted.

According to the invention of claim 17, since the valve open state can be maintained while the reject signal is output, the valve opening / closing in a short time becomes unnecessary, and the operation stability at the time of high speed operation is ensured. .

According to the eighteenth aspect of the invention, the valve operating unit is simpler and easier in terms of manufacturing the apparatus, and the reject paper is removed from the drag roller by the cooperation of the transport belt and the perforated belt, and is reliably delivered to the transport unit. It becomes possible.

According to the nineteenth aspect of the present invention, since the valve is incorporated in the block having the outer surface which becomes a part of the peripheral surface of the drag roller, the valve operating portion becomes simpler and easier in terms of device manufacture.

According to the twentieth aspect of the present invention, since at least one hole of the perforated belt exists in the suction area on the outer surface of the block, the reject paper can be reliably absorbed and converted.

According to the twenty-first aspect of the present invention, since the valve open state can be maintained while the reject signal is output, the valve opening and closing in a short time is unnecessary, and the operation stability during high speed operation is ensured. .

According to the invention of claim 22, a plurality of valves and valve operation portions are arranged in the paper width direction of the drag roller, and a valve operation portion that is operated for each valve is provided so that a valve to be used can be set according to the paper width. As a result, it is possible to reliably suck and deliver continuous paper that is rejected paper without lowering the degree of vacuum due to the opening of the suction valve outside the paper, that is, lowering the suction force. It can be set as the highly adaptable apparatus which can respond to printing paper.

According to the invention of claim 23, a compact device having the effect of the invention of claim 13 can be realized by using a compact electromagnetic vacuum valve including a valve and a valve operation section.

According to the invention of claim 24, since the valve is opened and closed every rotation of the rotating body, there is no problem of lowering the degree of vacuum because there is no time for opening to the atmosphere, so the capacity of the vacuum pump can be reduced.

According to the invention of claim 25, it becomes possible to reliably deliver the reject paper to the transport section by removing the reject paper from the drag roller by the cooperation of the transport belt and the perforated belt.

According to the invention of claim 26, since at least one hole of the perforated belt exists in the suction area on the outer surface of the block, the reject paper can be reliably absorbed and converted.

According to the twenty-seventh aspect of the present invention, the valve open state can be maintained while the reject signal is output, so that the valve opening / closing in a short time is not required, and the operation stability during high-speed operation is ensured. .

According to the invention of claim 28, it is possible to set the valve to be used by the valve operating portion and set it according to the paper width, thereby simplifying the suction valve structure and enabling independent control.

According to the invention of claim 29, by using a plurality of needles that can appear and disappear in the conversion means, a vacuum pump and a rotary joint become unnecessary, and an inexpensive device can be manufactured.

According to the invention of claim 30, by incorporating the conversion means into the drag roller, the conversion means becomes simpler than that in the case where the conversion means is in the cutter cylinder, and the manufacture of the apparatus is facilitated.

1 is an overall view of Embodiment 1 of a theta auto-reject device according to the present invention. It is an expanded sectional view of a cutter drum and a suction roller. It is a figure which shows the valve closed state of a push-up valve. It is a figure which shows the valve open (adsorption) state of a push-up valve. It is a figure which shows the push-up (adsorption | suction release) state of a push-up valve. FIG. 3B is a sectional view taken along line AA shown in FIG. 3B. It is an axial sectional view around the cam for the push-up valve. FIG. 6 is a view on arrow BB in FIG. 5. FIG. 2 is a configuration diagram of a control system according to the first embodiment. FIG. 3 is an overall view of an embodiment 2-1 of a theta auto-reject device according to the present invention. FIG. 3 is an overall view of an embodiment 2-2 of a theta auto-reject device according to the present invention. It is sectional drawing of the drag roller with a suction valve of Example 2. FIG. It is sectional drawing of the drag roller with a paper stab needle of Example 2. FIG. It is sectional drawing which shows the time of adsorption | suction of the drag roller with a rotating valve of Example 2. FIG. It is sectional drawing which shows the time of non-adsorption | suction of FIG. 9C. It is an end view of a suction roller or a drag roller with a paper stab needle. It is an end view of a drag roller with a rotary valve. It is a top view which shows a part of width direction of a drag roller. FIG. 6 is a configuration diagram of a control system according to a second embodiment. It is sectional drawing which shows the time of the vacuum suction of the drag roller with an electromagnetic vacuum valve of Example 3. It is sectional drawing at the time of air release. It is a top view which shows a part of width direction of the drag roller shown in FIG. FIG. 6 is a configuration diagram of a control system according to a third embodiment. It is a figure which shows the operation | movement flow of the auto reject apparatus for theta of Example 1-3. It is sectional drawing of the drag roller with a suction valve of Example 4. It is a top view which shows a part of width direction of the drag roller shown in FIG. It is sectional drawing which shows the time of the vacuum suction of the drag roller with an electromagnetic vacuum valve of Example 4. It is a top view which shows a part of width direction of the drag roller shown in FIG. It is sectional drawing which shows the time of adsorption | suction of the drag roller with a rotating valve of Example 4. FIG. It is a top view which shows a part of width direction of the drag roller shown in FIG. It is a figure which shows the operation | movement flow of the auto-reject apparatus for theta of Example 4. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Theta 2 Continuous paper 2A Sheet paper 2B Reject paper 4 Cutting part 5 Suction roller 7 Conversion part 8 Belt conveyance part 9 Deceleration conveyance part 10 Auto-rejecting device 11 Drag roller 12 Nipping roller 20 Valve 22 Hollow shaft 290 Adsorption hole 24 Torque bar 26 Cam follower 27 Cam 28 Lever 40 Cutter body 41 Rotating blade 42 Fixed blade 43 Decompression chamber 60 Stopper mechanism 61 Electromagnetic actuator 62 Stopper 80 Valve operating portion 81 Valve operating cam 82 Valve operating electromagnetic actuator 92 Electromagnetic vacuum valve 921 Atmospheric path 922 Vacuum Route 94 Suction hole 100 Paper discharge unit 110 Valve unit 115 Valve 113 Suction hole 117 Arm 200 Theta frame 812 Perforated belt 830 Electromagnetic type Coutuator

The present invention has been realized by holding the leading edge of the succeeding paper cut by the sheet cutting section, changing to a traveling direction different from the sheet feeding, delivering it to the transport device, and discharging it to the reject paper storage box.

The conversion means of Embodiment 1 has a length corresponding to the paper width, is disposed on the continuous paper conveyance path in the theta, has a decompression chamber formed therein, is open to the peripheral surface, and communicates with the decompression chamber. A cutter cylinder is applied as a rotating body in which a plurality of suction holes are arranged in the longitudinal direction according to the paper width.

Embodiments of the present invention will be described below with reference to the drawings.
1 is an overall view of a sheeter auto-reject device according to the present invention, FIG. 2 is an enlarged sectional view of a cutter cylinder and a suction roller, FIGS. 3A to 3C are operational views of a push-up valve, and FIG. 4 is an AA shown in FIG. FIG. 5 is an axial sectional view around the cam for the push-up valve, and FIG. 6 is a view taken along the line BB in FIG.
The sheeter 1 includes, as main parts, an infeed part 3 for transporting a continuous paper 2 printed by a rotary printing machine (not shown), a cutting part 4 for cutting the continuous paper 2 into a sheet 2A, and a sheet fed out. A paper discharge unit 100 that receives the leaf paper 2A is provided, and an auto-reject device 10 that receives a reject signal and extracts a necessary number of sheets from the succeeding paper is attached. The sheeter 1 for a high-speed rotary printing press is discharged after the sheet 2 </ b> A traveling at high speed is placed in a tiled state in front of the paper discharge unit 100.

When the continuous paper 2 attached to the cutter cylinder 40 of the cutting unit 4 is not in a position to cut the continuous paper 2 conveyed, the continuous paper 2 passes through the cutting unit 4 and is conveyed via the floating bar 31, and the drag roller 11. And nipping roller 12. Since the drag roller 11 is rotated at a speed slightly higher than the conveying speed of the continuous paper 2, tension is applied to the continuous paper 2 and the tension is not loosened. The continuous paper 2 to which tension is applied is cut by the rotary blade 41 and the fixed blade 42 of the cutting unit 4, and then the sheet 2 </ b> A fed out by the drag roller 11 is decelerated by the speed reduction conveyance unit 32, The kick-down roller 33 that rotates synchronously strikes the bottom of the sheet 2 </ b> A to advance in a tiled state with the subsequent sheet 2 </ b> A and is stacked in the sheet discharge unit 100.

The auto-rejecting device 10 is provided with a conversion unit 7 that adsorbs the leading end of the continuous paper 2 that becomes the reject paper from the continuous paper 2 that is cut by the cutting unit 4 in response to a reject signal, and advances in a direction different from normal sheet feeding. The continuous paper 2 delivered from the conversion unit 7 is cut by the cutting unit 4 and delivered to the belt conveying unit 8 as reject paper 2B, and the reject paper 2B conveyed via the decelerating conveyance unit 9 is rejected in a reject paper storage box 13. Store in. In this example, the conversion unit 7 incorporated in the cutting unit 4 corresponds to the conversion unit of the present invention, the belt conveyance unit 8 and the deceleration conveyance unit 9 correspond to the conveyance unit, and the reject paper storage box 13 corresponds to the rejection paper storage unit. To do.

First, the conversion unit 7 will be described. The push-up valve 20 is disposed immediately after the rotary blade 41 of the cutter cylinder 40, and adsorbs the leading edge of the succeeding paper that becomes the reject paper, and advances along a direction different from the sheet feeding direction, that is, along the outer periphery of the cutter cylinder 40. The suction roller 5 is arranged close to the cutter cylinder 40, and receives continuous paper as reject paper from the cutter cylinder 40 by suction by the push-up action of the push-up valve 20 with respect to the subsequent paper in the cutter cylinder 40. Here, the valve 20 is constituted by a valve member having a hole seat of the suction hole 290 as a valve seat, and the function of the valve is to close or open the suction hole 290 by the valve member or to push up the paper by the valve member. Means delivery to the suction roller.

The cutter cylinder 40 is rotatably supported by the theta frame 200 (see FIG. 5), and is rotated at a predetermined number of rotations according to the conveyance speed of the continuous paper 2. A rotary blade 41 for cutting the continuous paper 2 is fixed to the outer periphery of the cutter body 40 by a cooperative action with a fixed blade 42 disposed on the theta frame 200 side. The push-up valve 20 is disposed in a valve chamber 21 provided immediately after the rotary blade on the downstream side of the rotary blade with respect to the barrel rotation direction.

In FIG. 5, a hollow shaft 22 extending in the longitudinal direction of the cylinder is rotatably provided in the valve chamber 21, and one end of a cam follower arm 23 is attached to the shaft end protruding from the cylinder end of the hollow shaft 22. Yes. A plurality of push-up valves 20 are arranged on the hollow shaft 22 in accordance with the paper width, one of which is shown in FIG. A torsion bar 24 is housed inside the hollow shaft 22, and one end of the torsion bar 24 and a cam follower arm 23 are coupled by a connecting member 25, and the other end of the torsion bar 24 is twisted to the cutter body 40. It is fixed. The torsional restoring force of the torsion bar 24 is transmitted to the cam follower arm 23, and a cam follower 26 described later is pressed against the outer periphery of the cam 27.

The push-up valve 20 is attached to a lever 28 fixed to the hollow shaft 22. The push-up valve 20 is slightly retracted from the circumferential surface shown in FIG. 3A (valve closed), and is substantially flush with the circumferential surface shown in FIG. 3B. The position (valve open) is further movable to a position (push-up) that protrudes further from the circumferential surface of the valve as shown in FIG. 3C. When a cover member 29 having an outer surface having the same curvature as the cutter body peripheral surface is attached to the valve chamber 21, a sealed chamber space is formed inside. A plurality of suction holes 290 opened and closed by the push-up valve 20 are arranged in the longitudinal direction of the cutter cylinder 40 on the rotary blade side of the covering member 29 whose outer surface forms part of the cutter cylinder circumferential surface. . A decompression chamber 43 extending in the barrel width direction is provided at the center of the cutter barrel 40, and the valve chambers 21 of the push-up valves 20 communicate with the decompression chamber 43. The decompression chamber 43 is connected to a vacuum pump via a rotary valve provided at the barrel end.

5 and 6, the cam 27 is fixed to the theta frame 200 so as to be concentric with the rotating shaft 401 of the cutter body 40, and the cam follower 26 is pressed against the outer periphery thereof. When the cutter body 40 rotates, the cam follower arm 23 swings according to the profile of the cam 27 and moves the push-up valve 20 up and down. A stopper mechanism 60 is provided that holds the cam follower arm 23 in a state where the reject paper is not processed. In the stopper mechanism 60, an electromagnetic actuator 61 is disposed on the end surface of the cutter body 40, and the stopper 62 is connected to the plunger 610 of the electromagnetic actuator 61. The stopper 62 is inserted between the cam follower arm 23 and the cam 27 and restrains the swing of the cam follower arm 23.

Next, the suction roller will be described. In FIG. 2, the suction roller 5 is disposed close to the push-up area of the push-up valve 20 of the cutter cylinder 40. The suction roller 5 is provided with a gap around the fixed hollow shaft 50, a rotating roller 51 having a breathable roller surface is disposed concentrically with the hollow shaft 50, and a space 52 is defined between the hollow shaft 50 and the rotating roller 51. Forming. The space 52 is a suction area where a partition wall 53 is provided in the longitudinal direction of the roller to deliver continuous paper serving as a reject paper from the cutter cylinder 40, and is an air release area excluding this suction area. The sealed space forming the suction area is connected to a vacuum pump so that the roller surface can be sucked.

In FIG. 1, the continuous paper serving as the reject paper 2B delivered from the suction roller 5 is transported by the belt transport section 8, and the bottom side of the continuous paper is cut during the transport to become the reject paper 2B. The reject paper 2B is decelerated by the deceleration belt of the deceleration conveyance unit 9 and is dropped into the reject paper storage box 13 in a decelerated stacking discharge state by a kick down roller 34 installed at the end of the belt conveyance unit 8. At this time, the paper bottom is forcibly dropped downward by the paper separating air nozzle 35 and the rotating brush roller 36. The reject paper storage box 13 is provided so as to be inclined in the paper traveling direction and width direction, and the paper is aligned and stacked by the vibration motor 37. To remove the reject paper, pull down the opening / closing stopper 38 and pull it out in the advancing direction indicated by the arrow.

FIG. 7 shows the configuration of the control system of the first embodiment. The valve chamber of the cutter body is kept in a reduced pressure state by the operation of the vacuum pump, and energizes through the slip ring to the electromagnetic actuator of the stopper mechanism that holds the valve closing of the push-up valve. The electromagnetic actuator is controlled based on the phase of the cutter cylinder and the reject signal, and the push-up valve is moved up and down in three modes: valve close (FIG. 3A), bubble open (FIG. 3B), and valve push-up (FIG. 3C). When the valve is closed, the normal operation is performed. When the valve is opened, the suction is applied to the leading end of the continuous paper to be rejected.

In normal operation without a reject signal, as shown in FIG. 3A, the push-up valve is closed and enters a non-adsorption state. Therefore, the conveyed continuous paper passes through the cutter cylinder, is nipped between the drag roller and the nipping roller, is given tension, and is cut at the cutting timing of the cutter cylinder to become a sheet. The sheet is fed out by the drag roller while being supported by the paper feed floating bar, and then the sheet edge is hit by the kick down roller and sent to the decelerating conveyance unit. Here, the succeeding sheet is tiled on the preceding sheet, proceeds to the paper discharge unit, and is stacked in a bar.

In the case of reject paper removal operation with a reject signal, after detecting the phase of the cutter cylinder and confirming the push-up valve closed state, turn on the electromagnetic actuator of the stopper mechanism, pull the plunger, remove the stopper, and release the arm restraint To do. The cam follower is pressed against the cam by the torsional restoring force of the torsion bar. The arm swings according to the profile of the cam, and when the push-up valve rotates to a predetermined position before the cutter reaches the sheet breaking position, the valve is opened so that it can be sucked, and as shown in FIG. Immediately after cutting on the lead side, the leading edge of the subsequent continuous paper is sucked. The sucked succeeding paper advances along the cutter cylinder, and when the push-up valve rotates in front of the suction roller 5 shown in FIG. 2, the push-up valve further protrudes and sucks and opens as shown in FIG. 3C. At the same time, the succeeding paper is pushed up from the circumferential surface of the trunk and pressed against the circumferential surface of the suction roller, the lead side of the succeeding paper is attracted to the suction roller and delivered to the conveyor belt, and then the trailing side of the succeeding paper is cut and rejected. Is separated and transported. This operation is repeated for each rotation of the cutter cylinder until the reject signal is turned off, and the paper in the meantime is conveyed to the reject paper storage box.

The conversion means of Example 2 is applied to a drag roller as a rotating body.

FIG. 8A shows the overall configuration of Example 2-1. FIG. 8B shows the overall configuration of Example 2-2. 9A is a cross-sectional view of a drag roller with a suction valve, FIG. 9B is a cross-sectional view of a drag roller with a paper stab needle, and FIG. 10 is an end view of the drag roller. With respect to the arrangement of the conversion unit, the conveyance unit, and the reject paper storage unit with respect to the conveyance path to the sheet discharge unit of the theta, it is the upper side in Example 2-1 and the lower side in Example 2-2. Note that the conveyance and storage of reject paper are basically the same as those in the first embodiment, and therefore the description thereof will be omitted, and only the configuration that is different will be described.

The drag roller 11 in FIG. 9A is provided with a decompression chamber 43 so as to penetrate the roller center and in the longitudinal direction, and is connected to a vacuum pump through a rotary valve at the roller end. A hole 71 that penetrates the drag roller 11 across the decompression chamber 43 is formed, and one hole opened from the decompression chamber 43 to the roller peripheral surface is an adsorption hole 290. A counterbore hole 72 is formed in the other hole opposite to the hole with respect to the decompression chamber 43. On the other roller peripheral surface side, a groove 74 having both roller ends open for disposing the valve operation shaft 73 in the longitudinal direction of the roller and a rectangular recess 75 for accommodating the valve operation cam 81 intersect the groove 74. The counterbore hole 72 is provided at the bottom of the rectangular recess 75. The rectangular recess 75 is provided in accordance with the number of valves 20 corresponding to the paper width.

The guide bush 76 is inserted from the side of the rectangular recess 75, is inserted through the decompression chamber 43 and is inserted into the suction hole 290 side with a spacer 77 between the hole wall, and the large diameter portion 760 of the guide bush 76 is inserted into the square recess 75. It is fitted in the hole on the side, and the flange 761 is abutted against the bottom of the counterbore hole 72 to be internally provided. The suction hole 290 communicates with the decompression chamber 43 through a space formed between the hole wall and the guide bush 76. A valve support member 78 is fitted in the guide bush 76. The valve 20 is attached to the front end of the valve support member 78. The rear end of the valve support member 78 is a large diameter portion 780, and a compression spring 79 is interposed between the large diameter portion 780 and the guide bush 76. The valve support member 78 is maintained in the valve closed state by the elastic force of the compression spring 79 when the valve 20 is in a normal state (when the valve operation unit is not operated). The rear end of the valve support member 78 is linked to the valve operation unit 80.

In the valve operating portion 80, an eccentric cam 81 is fixed to a valve operating shaft 73 rotatably supported at the roller end at a rectangular recess 75. In FIG. 10A, an arm 82 is fixed to a shaft portion protruding from the roller end of the valve operating shaft 73, and a blanker 830 of an electromagnetic actuator 83 is pin-coupled to the arm 82. The electromagnetic actuator 83 is energized (ON or OFF) via a slip ring at the end of the roller shaft, and the plunger 830 is projected or retracted. When the reject signal is output, the electromagnetic actuator 83 is operated in relation to the cutting timing of the cutting portion, the eccentric cam 81 integrated with the shaft 73 is rotated, and the valve 20 is moved in the arrow direction shown in the figure to open or close the valve. With the valve closed, each operation of sucking or releasing the continuous paper is performed.

The drag roller 11 in FIG. 9B employs a paper stab needle instead of the above-described valve. The paper stab section 88 is arranged in parallel in the longitudinal direction of the rotating body 11 and is composed of a plurality of needles 89 that can be projected and retracted toward the conveyance path, and the needle 89 is pierced and held at the leading end of the continuous paper serving as reject paper. To do. The operation mechanism of the paper stab portion is the same mechanism as the above-described valve, and is configured so that the needle can protrude and retract from the circumferential surface of the rotating body.

In the drag roller 11 with a rotary valve in FIG. 9C, a decompression chamber 43 is formed so as to penetrate the roller center and in the longitudinal direction, and is connected to a vacuum pump via a rotary valve at the roller end. A valve unit storage groove 74 having an open roller end in the roller longitudinal direction is formed on the roller peripheral surface. The valve unit 110 is fitted into the valve unit storage groove 74 and fixed to the drag roller 11 by a bolt 111. . A passage 431 connected to the decompression chamber 43 is formed in the groove bottom of the valve unit housing groove 74 in accordance with the number and formation positions of the suction holes. The valve unit 110 has an outer surface 110a that constitutes a part of the peripheral surface of the drag roller 11, and a suction area 112 including a concave portion is formed on the outer surface 110a. The suction hole 113 includes a suction area 112, and communicates with the decompression chamber 43 through a valve passage 114 and a passage 431 that open to the suction area 112. A shaft-like valve 115 having a length equal to the length of the drag roller 11 is rotatably incorporated in the valve unit 110 to open and close the valve passage 113. The valve 115 is opened by a rotation operation by the valve operation unit 116 so that the valve passage 113 and the passage 431 are communicated with each other (the state shown in FIG. 9C), and the valve passage 113 and the valve 431 are shut off (the state shown in FIG. 9D). Can be switched.

In FIG. 10B, an arm 117 is fixed to an extension portion 730 of the valve 115 extending from the valve unit 110 on the roller end side of the valve operation portion 116, and a flanger 830a of an electromagnetic actuator 830 is pin-coupled to the arm 117. ing. The electromagnetic actuator 830 is energized (ON or OFF) through a slip ring at the end of the roller shaft, and the plunger 830a is projected or retracted. When the reject signal is output, the electromagnetic actuator 830 is operated in relation to the cutting timing of the cutting section, the arm 117 is rotated, the valve is opened at the solid line position shown in the figure, or the valve is closed at the broken line position shown in the figure. Each operation of adsorbing or releasing the paper is performed.

A configuration for delivering paper from the drag roller to the transport device will be described. FIG. 11 is a plan view showing a part of the drag roller in the width direction.
The drag roller 11 is installed as a starting point of the reject paper conveyance path. A free roller 801 is supported on a frame 800 having a rotation center concentric with the axis 110 of the drag roller, and a conveying belt 802 is provided in contact with the free roller 801. The frame 800 can be rotated to the position of the imaginary line shown in FIG. 8A for maintenance. A plurality of annular belt grooves 11a are formed at intervals on the peripheral surface of the drag roller 11 that does not face the nipping roller 12, and a conveyor belt 802 is wound around the belt groove 11a up to the deceleration conveyance path.
The valve 20 is disposed between these members in order to avoid interference between the conveying belt 802 and the nipping roller 12.

FIG. 12 shows the configuration of the control system of the second embodiment. In the case of normal operation without a reject signal, the electromagnetic actuator is OFF, so the plunger of the electromagnetic actuator protrudes, and the eccentric cam is retracted to the position depicted by the imaginary line shown in FIG. As a result, the valve 20 is moved toward the center of the roller by the action of the compression spring 79 to keep the valve closed, and a normal sheet feeding operation is performed without adsorbing the paper.

In the case of reject paper extraction operation with a reject signal, after confirming the phase of the drag roller 11, the electromagnetic actuator 83 is turned on, the plunger 830 is retracted, and the eccentric cam 81 is at the position depicted by the solid line shown in FIG. 9A. Make it protrude. As a result, the valve 20 is pushed in the roller outer peripheral direction against the elastic force of the compression spring 79 to open the valve, and adsorbs the paper. The adsorbed paper advances along the peripheral surface of the drag roller 11 and is delivered to the transport device. This operation is repeated for each rotation of the cutter cylinder until the reject signal is turned off, and the paper in the meantime is conveyed to the reject paper storage box.

In the control system of the embodiment of FIG. 9C, in the case of normal operation without a reject signal, the electromagnetic actuator is OFF, so the plunger of the electromagnetic actuator protrudes, and the valve 115 is positioned via the arm as shown in FIG. 9D. , The valve closed state is maintained, and the normal sheet feeding operation is performed without adsorbing the paper. In the case of reject paper removal operation with a reject signal, after confirming the phase of the drag roller 11, the electromagnetic actuator is turned on, the plunger is retracted, and the valve 115 is rotated to the position shown in FIG. And absorb the paper. The adsorbed paper advances along the peripheral surface of the drag roller 11 and is delivered to the transport device. While the reject signal is present, the valve opening / closing operation is repeated every rotation of the cutter cylinder, and the cut reject paper is conveyed to the reject paper storage box.

The conversion means of Example 3 has a length corresponding to the paper width, is disposed on the continuous paper conveyance path in the theta, has a decompression chamber formed therein, is opened to the peripheral surface, and communicates with the decompression chamber. The suction holes are applied to a drag roller as a rotating body in which a plurality of suction holes are arranged in the longitudinal direction according to the paper width. The rotary body incorporates a plurality of valves arranged in a path formed independently between the decompression chamber and each suction hole, and operates a valve operation unit for each valve in relation to the cutting timing of the cutting unit by a reject signal. The valve is configured to perform each valve operation of adsorbing continuous paper when the valve is open or non-adsorbing continuous paper when the valve is closed.

FIG. 13 is a sectional view showing a vacuum roller of an electromagnetic vacuum valve-equipped drag roller as a specific example of the present invention, FIG. 14 is a sectional view when the same is opened to the atmosphere, and FIG. 15 is a plan view showing a part of the drag roller in the width direction. is there. In this embodiment, the conversion means is incorporated in the drag roller.

The drag roller 11 has a decompression chamber 43 formed through the roller center and in the longitudinal direction, and is connected to a vacuum pump via a rotary valve at the roller end. A valve chamber 90 formed inside the drag roller 11 incorporates a decompression chamber 43 and a manifold 91 provided with a path to the atmosphere, and an electromagnetic vacuum valve 92 is disposed. The electromagnetic vacuum valve 92 is energized through a slip ring at the roller shaft end. The valve chamber 90 is attached with a covering member 93 having an outer surface having the same curvature as the roller peripheral surface. The cover member 93 is formed with a suction hole 94 that communicates with the vacuum path of the vacuum electromagnetic valve 92.

The electromagnetic vacuum valve 92 has a structure in which an atmospheric path 921 leading to the atmosphere and a vacuum path 922 leading to the decompression chamber 43 are switched. When energized, the electromagnetic vacuum valve 92 is switched to the decompression chamber 43 side shown in FIG. 14 is switched to the atmosphere side shown in FIG.

The same transport device as that of the above-described embodiment can be applied to the transport device of Embodiment 3. As shown in FIG. 15, in order to avoid the interference between the conveying belt and the nipping roller, a number of valves corresponding to the paper width are arranged between these members in the roller width direction. Since the electromagnetic vacuum valve can be individually energized, the valve to be used can be set according to the paper width.

FIG. 16 shows the configuration of the control system of the third embodiment. In the case of normal operation without a reject signal, the electromagnetic vacuum valve is OFF, so that the electromagnetic vacuum valve is rotated while it is open to the atmosphere, so that normal sheet feeding operation is performed without adsorbing paper.

In the case of reject paper removal operation with a reject signal, after confirming the phase of the drag roller, the electromagnetic vacuum valve is turned on and the vacuum suction state is set to suck the paper. The adsorbed paper advances along the peripheral surface of the drag roller and is delivered to the transport device. After handing it over to the transport device, it is again opened to the atmosphere. This operation is repeated for each rotation of the cutter cylinder until the reject signal is turned off, and the paper in the meantime is conveyed to the reject paper storage box.

The operation of the theta auto-reject device of the first to third embodiments will be described with reference to the flowchart of FIG.
The paper path length from the place where the waste paper is generated during printing (the place where the waste paper detection device is installed) to the cutter cylinder or the drag roller of the sheeter cutting section is known. Therefore, when the paper path length is divided by the printing cylinder circumference, the rotation speed (N) of the cutter cylinder until the waste paper reaches the cutter cylinder or the drag roller can be calculated. On the other hand, the number of rejected copies corresponding to the cause of the loss paper is preset. When the waste paper generation signal is output, the number of rotations of the cutter cylinder and the number of rejected parts are set. The phase of the cutter cylinder or the drag roller is confirmed, the valve is opened after N rotations, the continuous paper is adsorbed, the non-adsorption is released after the direction of travel is changed, and then the valve is closed. The converted continuous paper is cut, conveyed as reject paper, and discharged into a reject paper storage box. This operation is repeated for each rotation of the cutter drum or the drag roller until the waste paper is completed or a predetermined number of copies are reached.
After the rotation of the cutter paper or the drag roller is confirmed after N rotations from the occurrence of the waste paper completion signal, the valve is closed and the non-adsorption is released, the rejection is completed, and the theta operation is started. In the case where a certain number of copies have elapsed since the occurrence of the waste paper, if this condition is satisfied, the phase confirmation of the next cutter cylinder is started. The same applies to the case where the needle protrudes or retracts instead of suction or non-adsorption by the valve.

The conversion means of the fourth embodiment is configured to hold the valve open while the reject signal is output, and suck the reject paper every rotation of the drag roller. FIG. 18 is a cross-sectional view of a drag roller with an adsorption valve of Example 4, and FIG. 19 is a plan view showing a part of the drag roller in the width direction. Since this example employs the same valve mechanism as that of the second embodiment shown in FIG. 9A, the same reference numerals are given to those constituent members and the description thereof is omitted. Here, a configuration different from the second embodiment will be described.

In the drag roller 11, a plurality of suction holes 290 that are open to the circumferential surface of the roller and communicated with the decompression chamber 43 are arranged in the longitudinal direction according to the paper width, and each suction hole is in a region facing the continuous paper conveyance path. A perforated belt 812 is suspended over each suction hole. On the peripheral surface of the drag roller 11, a belt groove 11a having a depth corresponding to the belt thickness is formed at each suction hole. A suction area 291 having a size slightly narrower than the width of the perforated belt 812 and having at least one hole 812a of the perforated belt 812 is formed at the groove bottom of the belt groove 11a. A suction hole 290 is provided in the suction area 291. The perforated belt 812 is rotated at the same peripheral speed as the drag roller 11. The conveying belt 803 of the belt conveying unit 8 extends to a predetermined area before the perforated belt 812 is separated from the drag roller 11, and both move in the direction shown in FIG.
While the reject signal is output, the valve member is operated by the rotation of the eccentric cam 81, the valve is kept open, and the reject paper is sucked by each suction hole. Thereafter, the reject paper is positioned between the transport belt 803 and the perforated belt 812 by the rotation of the drag roller 11, and is sandwiched between the transport belt 803 and the perforated belt 812 as the perforated belt 812 moves away from the drag roller 11. Then, it is peeled off from the roller peripheral surface, removed from the drag roller 11 and conveyed. This operation is repeated while the reject signal is output.

20 is a cross-sectional view of the drag roller with an electromagnetic vacuum valve during vacuum suction, and FIG. 21 is a plan view showing a part of the drag roller in the width direction. It is a top view which shows a part of width direction of a drag roller. This example employs the same valve mechanism as that of the third embodiment shown in FIG. 13, and the mechanism for removing the reject paper adsorbed from the drag roller has the same configuration as the drag roller with the adsorbing valve in FIG.
In the case of normal operation without a reject signal, the electromagnetic vacuum valve is OFF, so that the electromagnetic vacuum valve is rotated while it is open to the atmosphere, so that normal sheet feeding operation is performed without adsorbing paper. In the case of reject paper removal operation with a reject signal, after confirming the phase of the drag roller, the electromagnetic vacuum valve is turned on to make the vacuum suction state, and the reject paper is sucked. Thereafter, the reject paper is peeled off from the peripheral surface of the roller by the cooperation of the transport belt 803 and the perforated belt 812 by the rotation of the drag roller 11, removed from the drag roller 11, and transported. This operation is repeated while the reject signal is output.

FIG. 22 is a cross-sectional view showing the suction time of the drag roller with a rotary valve, and FIG. 23 is a plan view showing a part of the drag roller in the width direction. This example employs the same valve mechanism as that of the third embodiment shown in FIG. 9C, and the mechanism for removing the reject paper adsorbed from the drag roller has the same configuration as the drag roller with the adsorbing valve in FIG.
In a normal operation without a reject signal, since the electromagnetic actuator is OFF, the valve 115 is kept in a closed state, and a normal sheet feeding operation is performed without adsorbing paper. In the reject paper extraction operation with a reject signal, the electromagnetic actuator is turned on and the valve 115 is opened to suck the paper. The adsorbed paper advances along the peripheral surface of the drag roller 11 and is delivered to the transport device. The valve is kept open until the reject signal is switched from the presence to the absence, and the reject paper cut every rotation of the cutter cylinder is conveyed to the reject paper storage box.

The operation of the theta auto-reject device of Embodiment 4 will be described with reference to the flowchart of FIG.
When the reject signal is issued, the phase of the drag roller is confirmed, the valve is opened after N rotations, the continuous paper is sucked, and the perforated belt is sucked and released at a position away from the roller peripheral surface of the drag roller after the direction of travel is changed. . In the meantime, the converted continuous paper is cut and transported as reject paper by the cooperation of the perforated belt and the transport belt, and discharged into the reject paper storage box. During this operation, the valve is kept open, and the drag roller is repeated for each rotation until the paper loss is completed or until a certain number of copies.
After the rotation of the drag roller is confirmed N times after the loss paper completion signal is output, the valve is closed, the non-adsorption is released, the rejection is completed, and theta operation is started. In the case where a certain number of copies have elapsed since the occurrence of the waste paper, if this condition is satisfied, the phase of the next drag roller is checked.

Claims

A sheeter attached to a printing machine for cutting continuous paper conveyed from a printing unit into sheets at a cutting unit, conveying the sheets and sticking them to a paper discharge unit,
Conversion means for holding the leading edge of the continuous paper to be rejected from the continuous paper cut by the cutting section of the theta, and for causing the paper to travel in a direction different from the progress to the paper discharge section;
A conveying means for cutting the continuous paper delivered from the conversion means at the cutting section and conveying it as reject paper;
Reject paper storage means that is installed at a location different from the paper discharge unit and that stores reject paper transported by the transport means;
An auto-reject device for theta, comprising:
The converting means has a length corresponding to the paper width, and includes a rotating body that holds the leading edge of the continuous paper at a plurality of positions in the paper width direction, and the rotating body is arranged on a continuous paper conveyance path in the theta. The theta auto-reject device according to claim 1.
The rotating body of the conversion means has a decompression chamber formed therein, and a rotating body that is open to the peripheral surface and has a plurality of suction holes communicating with the decompression chamber arranged in the longitudinal direction according to the paper width, A valve part that is built into a rotating body and is configured by a valve having a valve seat as a valve seat of the suction hole, and a valve part that is built into the rotating body and operates in relation to the cutting timing of the cutting part by a reject signal. And a valve operating unit for performing each valve operation of adsorbing the leading edge of continuous paper that becomes rejected paper when the valve is opened or non-adsorbing continuous paper when the valve is closed. Auto-reject device.
5. The auto-reject device for theta according to claim 3, wherein the valve operating section performs each valve operation for opening and closing the valve every rotation of the rotating body of the conversion means while a reject signal is output.
The valve operating portion of the conversion means has a lever fixed to a rotatable shaft extending in the longitudinal direction inside the rotating body, and operates the valve member by swinging the lever. Auto-reject device for theta.
2. The auto-reject device for theta according to claim 1, wherein the conversion means, the transport means, and the reject paper storage means are arranged on the upper or lower side of the transport path to the sheet discharge section of the theta.
6. A theta auto-reject device according to claim 5, further comprising a stopper mechanism that restrains the lever from swinging.
3. The theta auto-reject apparatus according to claim 2, wherein the rotating body of the conversion means is a cutter body of a cutting part.
9. The theta auto-reject device according to claim 8, wherein the valve of the conversion means is arranged in the vicinity of the peripheral surface immediately after the rotary blade of the cutter body.
A suction roller is arranged close to the cutter cylinder, the continuous paper adsorbed on the cutter cylinder is sucked and delivered to the suction roller by the function of the conversion means, and then the reject paper cut by the cutting unit is transferred to the suction roller. The theta auto-reject device according to claim 9, wherein the theta auto-reject device is transferred to a conveying unit.
A suction roller is arranged close to the cutter cylinder, and a valve operating part of the conversion means fixes a lever to a rotatable shaft extending in the longitudinal direction inside the cutter cylinder, and the valve member is moved by swinging the lever. When the valve member is in a position slightly retracted from the cylinder circumferential surface of the cutter cylinder, the bubble is closed and non-adsorption operation is performed, and when the valve member is in a position substantially flush with the cylinder circumferential surface, the bubble opening is performed. It consists of a push-up valve that becomes a suction operation when it is in the push-up position that protrudes further from the cylinder circumferential surface than the valve is open. The reject paper that is sucked and delivered by the roller and then cut by the cutting section is transferred to the conveying means through the suction roller. Auto reject device for theta of claim 9.
12. The theta auto-reject device according to claim 11, further comprising a cam fixed concentrically with a rotation center of the cutter cylinder, wherein the cam is rotated to rotate a shaft.
3. The auto-reject device for theta according to claim 2, wherein the rotating body of the conversion means is a drag roller that is disposed on the downstream side of conveyance of the cutting section and applies tension to continuous paper.
The drag roller is provided with a valve operating portion, and the valve operating portion includes an eccentric cam fixed to a rotatable shaft penetrating in the longitudinal direction of the drag roller, and an electromagnetic actuator for rotating the shaft,
14. The theta auto according to claim 13, wherein while the reject signal is output, the valve member is operated by the rotation of the eccentric cam for each rotation of the drag roller to perform each valve operation of opening and closing the valve. Reject device.
The drag roller includes a decompression chamber formed therein, a suction hole that is open to the circumferential surface of the roller and communicates with the decompression chamber, and a plurality of suction holes arranged in a longitudinal direction in accordance with a paper width, and a hole of the suction hole. The valve part is composed of a valve with a valve seat on the edge, and the valve is operated in relation to the cutting timing of the cutting part by a reject signal, and the continuous paper that is rejected when the valve is opened is continuously attracted or closed. A valve operating unit that performs each valve operation of non-adsorption of paper, and each of the adsorption holes is suspended over the respective adsorption holes in a region facing the continuous paper conveyance path, and rotated at the same peripheral speed as the drag roller, A perforating belt that adsorbs reject paper through each of the suction holes, and the conveying belt of the conveying means extends to the perforating belt of the drag roller. Theta for auto reject apparatus of claim 13, wherein the removing the reject from the paper drag roller in cooperation with the belt.
The peripheral surface of the drag roller on which the perforated belt is suspended forms a suction area slightly narrower than the width of the perforated belt and includes at least one hole of the perforated belt, and the suction hole is formed in the suction area. The theta auto-reject device according to claim 15, wherein the theta auto-reject device is provided.
The valve operation unit includes an eccentric cam fixed to a rotatable shaft that is penetrated in the longitudinal direction of the drag roller, and an electromagnetic actuator that rotates the shaft.
16. The theta-reject device for theta according to claim 15, wherein the valve member is operated by rotation of the eccentric cam and the valve is kept open while a reject signal is output.
The drag roller includes a decompression chamber formed therein, a suction opening that is open to a circumferential surface of the roller and communicates with the decompression chamber, and a plurality of suction holes are arranged in a longitudinal direction in accordance with a paper width. A valve that is disposed in a passage communicating with the hole, and that opens and closes the passage by rotation with the longitudinal direction of the rotating body as a valve shaft, and a valve operating portion that operates the valve in relation to the cutting timing of the cutting portion by a reject signal And a holed belt that is suspended over the suction holes in a region facing the conveyance path of the continuous paper, and sucks reject paper through the suction holes,
The conveyance belt of the conveyance means is extended to the perforated belt of the drag roller, and the perforating belt and the conveyance belt cooperate to remove the reject paper from the drag roller. Auto-reject device for theta.
An elongated recess opened in the longitudinal direction is formed on the peripheral surface of the drag roller, and a plurality of passage openings leading to the decompression chamber are provided at the bottom of the recess, and the length of the drag roller is approximately equal to the length of the drag roller. A block that is equally fitted in the recess, the block having an outer surface that is a part of the peripheral surface of the drag roller, and is provided with a plurality of suction holes that are open to the outer surface and face the plurality of passages; A plurality of passages leading to the decompression chamber are provided with block passages that individually communicate the respective suction holes, and valve holes are formed across the block passages, and valves are incorporated into the valve holes of the blocks. The theta auto-reject apparatus according to claim 18, wherein
The outer surface of the block is formed with a suction area slightly narrower than the width of the perforated belt and having at least one hole of the perforated belt, and suction holes are opened in the suction area. The theta auto-reject device according to claim 19.
The valve operation unit includes an electromagnetic actuator that rotates a valve shaft at a roller end of a drag roller,
The theta auto-reject device according to claim 18, wherein the valve is operated by rotation of the valve shaft and a valve open state is maintained while a reject signal is output.
The conversion means has a length corresponding to the paper width, is disposed on a continuous paper conveyance path in the theta, has a decompression chamber formed therein, and is open to the peripheral surface and communicated with the decompression chamber A rotating body in which a plurality of holes are arranged in the longitudinal direction according to the paper width;
A plurality of valves incorporated in the rotating body and arranged in a path formed independently between the decompression chamber and each suction hole;
A valve operating section that operates for each valve in relation to the cutting timing of the cutting section by a reject signal,
2. The theta auto-reject device according to claim 1, wherein the valve performs each valve operation of continuous paper suction when the valve is open or non-adsorption of the continuous paper when the valve is closed.
The rotating body of the conversion means has a valve chamber, a manifold incorporated in the valve chamber, having a vacuum path leading to the decompression chamber and an atmospheric path leading to the atmosphere, and an outer surface that is a part of the peripheral surface of the rotating body. A cover member for the valve chamber provided with a suction hole opened on the outer surface; and an electromagnetic vacuum incorporated in the valve chamber for opening and closing a passage leading to the suction hole of the cover member and the vacuum path or the atmospheric path of the manifold. The theta auto-reject device according to claim 22, further comprising: a valve.
25. The theta auto-reject device according to claim 23, wherein the electromagnetic vacuum valve is turned on and off for each rotation of the rotating body of the conversion means while a reject signal is output, thereby opening and closing the valve.
A rotating body of the conversion means is a drag roller that is arranged on the downstream side of the cutting unit to convey the continuous paper, and applies tension to the continuous paper. The drag roller has the suction holes in a region where each suction hole faces the continuous paper conveyance path. A perforated belt that is suspended and covered, rotates at the same peripheral speed as the drag roller, and sucks reject paper through the suction holes, and the transport belt of the transport means extends to the perforated belt of the drag roller. 24. The theta auto-reject apparatus according to claim 23, wherein the reject paper is removed from the drag roller by the cooperation of the conveying belt and the perforated belt.
A suction area that is slightly narrower than the width of the perforated belt and has at least one hole of the perforated belt is formed on the outer surface of the covering member, and the suction hole is opened in the suction area. 26. The theta auto-reject device according to claim 25.
26. The theta auto-reject device according to claim 25, wherein the electromagnetic vacuum valve is turned ON and the valve is kept open while a reject signal is output.
25. A theta auto-reject device according to claim 22 and 24, wherein the valve operating unit can set a valve to be used according to a paper width.
The conversion means is provided side by side in the longitudinal direction of the rotating body, and a paper stab part composed of a plurality of needles capable of appearing and retracting toward the conveyance path;
A paper stab operation unit for operating the needle to move in and out in relation to the cutting timing of the cutting unit by a reject signal,
The paper stab operating unit includes an eccentric cam fixed to a rotatable shaft that is penetrated in a longitudinal direction of the rotating body, an electromagnetic actuator that rotates the shaft, and the needle by rotating the eccentric cam. 3. The theta auto-reject device according to claim 2, wherein the continuous paper is pierced from the peripheral surface to pierce the leading end of the continuous paper to be rejected to change the progress of the continuous paper.
30. The theta auto-reject device according to claim 29, wherein the rotating body of the conversion means is a drag roller that is arranged on the downstream side of conveyance of the cutting section and applies tension to continuous paper.