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Publication numberCN1592708 A
Publication typeApplication
Application numberCN 02819829
PCT numberPCT/US2002/011281
Publication date9 Mar 2005
Filing date9 Apr 2002
Priority date24 Oct 2001
Also published asCN1325350C, DE60212167D1, DE60212167T2, EP1440026A2, EP1440026B1, US7047852, US20030075029, WO2003035526A2, WO2003035526A3
Publication number02819829.8, CN 02819829, CN 1592708 A, CN 1592708A, CN-A-1592708, CN02819829, CN02819829.8, CN1592708 A, CN1592708A, PCT/2002/11281, PCT/US/2/011281, PCT/US/2/11281, PCT/US/2002/011281, PCT/US/2002/11281, PCT/US2/011281, PCT/US2/11281, PCT/US2002/011281, PCT/US2002/11281, PCT/US2002011281, PCT/US200211281, PCT/US2011281, PCT/US211281
InventorsKA弗兰克林, AD施尔普, DN杜赫林格
Applicant金伯利-克拉克环球有限公司
Export CitationBiBTeX, EndNote, RefMan
External Links: SIPO, Espacenet
Feedforward control system for an elastic material
CN 1592708 A
Abstract  translated from Chinese
一种为了提供前馈控制以便控制弹性材料供给速率的工艺。 An order before providing feedback control to control the feed rate of the elastomeric material technology. 该工艺包括在弹性材料切断之前测定位于弹性材料之上的定位标记之间的距离。 The process includes an elastic material cut prior to the determination of elastic material located just above the positioning between the markers. 把这些测定值与一目标切割长度进行比较。 These measured values and a target cut length compared. 根据目标切割长度和定位标记之间的距离来调整供给辊的供给速率,从而保持弹性材料的切割长度为目标切割长度。 According to the target cut length and the distance between the alignment mark to adjust the supply rate of the supply roller, so that the cutting length of the elastic material to maintain the target cut length.
Claims(58)  translated from Chinese
1.一种用于提供前馈控制以便控制弹性材料以目标供给速率来供给的工艺,其包括如下步骤:当弹性材料处于第一张力T1下时,确定位于弹性材料上的第一定位标记和第二定位标记之间在机器方向上的距离L1;假定弹性材料处于零张力T0下,位于弹性材料上的第一定位标记和第二定位标记之间在机器方向上的距离近似为L0;在第二张力T2下供给弹性材料;当弹性材料处于第二张力T2下时,测定位于弹性材料上的第一定位标记和第二定位标记之间在机器方向上的距离L2;和根据一个给定的关系来调整弹性材料的供给速率Ls,以便与一预定的目标供给速率相匹配。 1. A method for providing feedforward control to control the elastic material supply rate supplied to the target process, comprising the steps of: when the elastic material is under the first tension T1, determining a first alignment mark located on an elastic material and in the machine direction of the distance L1 between the second alignment mark; assume elastic material is under zero tension T0, the distance in the machine direction between the first alignment mark located on an elastic material and a second positioning marks approximately L0; in supplying the second tension T2 of elastic material; when the elastic material is in the second tension T2, located at a distance measured in the machine direction between the first registration mark on the elastic material and a second positioning mark L2; and according to a given adjusting the relationship between feed rate of the elastic material Ls, in order to supply with a predetermined target rate match.
2.根据权利要求1所述的工艺,其特征在于:其进一步包括将弹性材料在第一张力T1下从至少一个退卷装置退绕的步骤。 2. The process according to claim 1, characterized in that: further comprising the step of an elastic material under a first tension T1 from the at least one unwinding device for unwinding.
3.根据权利要求1所述的工艺,其特征在于:其进一步包括当将弹性材料处于第一张力T1下时,把第一定位标记和第二定位标记施加到弹性材料上的步骤。 3. The process according to claim 1, characterized in that: it further comprises an elastic material when a first tension is at T1, the step of positioning a first elastomeric material and a second positioning mark is applied to the mark.
4.根据权利要求3所述的工艺,其特征在于:第一定位标记和第二定位标记是在一个制造工序中施加到弹性材料上的。 4. The process according to claim 3, wherein: the first positioning mark and the second positioning mark in a manufacturing process is applied to the elastic material.
5.根据权利要求3所述的工艺,其特征在于:第一定位标记和第二定位标记是在一个转换工序中施加到弹性材料上的。 5. The process according to claim 3, wherein: the first positioning mark and the second mark are positioned in a converting process is applied to the elastic material.
6.根据权利要求5所述的工艺,其特征在于:转换工序包括利用一个真空辊来供给弹性材料的步骤。 6. The process according to claim 5, characterized in that: the conversion step includes the use of a vacuum roll to the step of feeding the elastomeric material.
7.根据权利要求1所述的工艺,其特征在于:使用该工艺来控制弹性材料的切割长度达到目标切割长度Lc,来形成弹性材料段。 7. The process according to claim 1, characterized in that: the use of this process to control cut length of an elastic material to achieve the target cut length Lc, to form an elastic material segment.
8.根据权利要求7所述的工艺,其特征在于:该工艺进一步包括将弹性材料段形成用于吸收衣物的一个侧翼片的步骤。 8. The process according to claim 7, wherein: the process further comprises the step of forming an elastic material segment for absorbing a flap of the laundry.
9.一种包括由权利要求8所述的工艺形成的侧翼片的吸收衣物。 A process comprising claim 8, wherein the flap formed absorbent garment.
10.根据权利要求7所述的工艺,其特征在于:该工艺进一步包括利用一个调节因子K来调整弹性材料供给速率Ls的步骤,如KL2/L0,其中K>0。 10. The process according to claim 7, wherein: the process further comprises the use of an adjustment factor K to adjust the feed rate of an elastic material Ls steps, such as KL2 / L0, wherein K> 0.
11.根据权利要求10所述的工艺,其特征在于:弹性材料的供给速率Ls根据下述关系来调整:Ls=LcL2/L0。 11. The process according to claim 10, wherein: the elastomeric material feed rate Ls adjusted according to the following relationship: Ls = LcL2 / L0.
12.根据权利要求1所述的工艺,其特征在于:该工艺进一步包括将机器方向上的距离L0近似作为第一张力T1和机器方向的距离L1的一个函数的步骤。 12. The process according to claim 1, wherein: the process further comprises the step distance L0 machine direction tension T1 as a first approximation and the machine direction distance L1 of a function.
13.根据权利要求1所述的工艺,其特征在于:该工艺进一步包括将机器方向上的距离L0近似作为第一张力T1、机器方向的距离L1、第二张力T2、和机器方向的距离L2的一个函数的步骤。 13. A process according to claim 1, wherein: the process further comprises the distance L0 in the machine direction distance L1 as a first approximation of the tension T1, the machine direction, the second distance L2 tension T2, and the machine direction Steps to a function.
14.根据权利要求1所述的工艺,其特征在于:弹性材料包括在相对于第一定位标记和第二定位标记的一机器方向上标记的图形。 14. The process according to claim 1, characterized in that: the resilient material comprises a first alignment mark with respect to the second alignment mark and a machine direction flag pattern.
15.根据权利要求14所述的工艺,其特征在于:所述图形包括第一定位标记。 15. A process according to claim 14, wherein: said pattern comprises a first positioning mark.
16.一种用于提供前馈控制以便控制弹性材料的切割长度达到目标切割长度Lc的工艺,其包括如下步骤:在一个转换张力T2下供给弹性材料;当弹性材料处于转换张力T2下时,测定位于弹性材料上的第一定位标记和第二定位标记之间的在机器方向上的距离L2;根据利用机器方向距离L2的一个给定关系来调整弹性材料的供给速率,以便与一预定的目标切割长度Lc相匹配;和将弹性材料进行切割,使其切割长度大致等于目标切割长度Lc,以便形成弹性材料段。 16. A method for providing prior feedforward control to control cut length of the elastic material to achieve the target cut length Lc of the process, comprising the steps of: supplying a transformation under the tension T2 elastomeric material; when the elastic material is under the converting tension at T2, Determination of elastic material in the first positioned on the distance in the machine direction between the mark and the second alignment mark of L2; L2 based on the use of the machine direction distance relationship for a given feed rate adjustment of elastic material, for use with a predetermined match target cut length Lc; and elastomeric material cut to a length substantially equal to the target cut length cut Lc, so as to form an elastic material segment.
17.根据权利要求16所述的工艺,其特征在于:其进一步包括在第一张力T1下将弹性材料从至少一个退卷装置退绕的步骤;当弹性材料处于第一张力T1下时,将第一定位标记和第二定位标记施加到弹性材料上;和当弹性材料处于第一张力T1下时测定位于第一定位标记和第二定位标记之间的在机器方向上的距离L1。 17. A process according to claim 16, characterized in that: further comprising the step at a first tension T1 to the at least one elastomeric material unwinding from the unwinding device; when the elastic material is under the first tension T1, the first positioning mark and the second alignment mark is applied to the elastic material; and when the elastic material is under the first tension T1 measured in the first positioned in the machine direction distance L1 mark and the second positioning tags.
18.根据权利要求17所述的工艺,其特征在于:其进一步包括假定弹性材料处于零张力T0下,将位于弹性材料上的第一定位标记和第二定位标记之间在机器方向上的距离L0近似作为第一张力T1和机器方向的距离L1的一个函数的步骤. 18. A process according to claim 17, characterized in that: further comprising an elastic material is assumed zero tension T0, will be located in the machine direction distance between the first registration mark on the elastic material and the second positioning mark L0 approximate as the first tension T1 and step away from the machine direction as a function of L1.
19.根据权利要求17所述的工艺,其特征在于:其进一步包括假定弹性材料处于零张力T0下,将位于弹性材料上的第一定位标记和第二定位标记之间在机器方向上的距离L0近似作为第一张力T1、机器方向的距离L1、转换张力T2、和机器方向的距离L2的一个函数的步骤。 19. A process according to claim 17, characterized in that: further comprising an elastic material is assumed zero tension T0, will be located in the machine direction distance between the first registration mark on the elastic material and the second positioning mark As a first approximation L0 tension T1, the machine direction distance L1, the step from the tension T2, and a machine direction L2 of the conversion function.
20.根据权利要求16所述的工艺,其特征在于:弹性材料是利用一个供给辊来供给的。 20. A process according to claim 16, characterized in that: the use of an elastic material is supplied to the supply roller.
21.根据权利要求20所述的工艺,其特征在于:其进一步包括调整供给辊速度以便控制目标切割长度Lc的步骤。 21. A process according to claim 20, characterized in that: further comprising adjusting the speed of feed roller so as to control the target cut length Lc steps.
22.根据权利要求21所述的工艺,其特征在于:供给辊的速度根据以下关系进行调整:速度供给辊=LcL2/L0。 22. A process according to claim 21, wherein: the feed roller speed is adjusted according to the relation: Speed feed roller = LcL2 / L0.
23.根据权利要求22所述的工艺,其特征在于:该工艺进一步包括利用一个调节因子K来调整供给辊速度的步骤,如KL2/L0,其中K>0。 23. A process according to claim 22, wherein: the process further comprises the use of a step factor K to adjust the speed of the feed roller adjustment, as KL2 / L0, wherein K> 0.
24.根据权利要求20所述的工艺,其特征在于:机器方向上的距离L2是在弹性材料到达供给辊之前进行测定的。 24. The process according to claim 20, characterized in that: the machine direction distance L2 is in the elastomeric material before it reaches the supply roller was measured.
25.根据权利要求20所述的工艺,其特征在于:机器方向上的距离L2是在弹性材料位于供给辊上时进行测定的。 25. The process according to claim 20, characterized in that: the machine direction distance L2 is measured when the elastic material is located on the supply roller.
26.根据权利要求16所述的工艺,其特征在于:响应切割长度反馈而对供给速率进行进一步调整。 26. The process according to claim 16, characterized in that: in response to cut length feedback and further adjust the feed rate.
27.根据权利要求16所述的工艺,其特征在于:第一定位标记和第二定位标记是在一个制造工序中施加到弹性材料上的。 27. A process according to claim 16, wherein: the first positioning mark and the second positioning mark in a manufacturing process is applied to the elastic material.
28.根据权利要求16所述的工艺,其特征在于:第一定位标记和第二定位标记是在一个转换工序中施加到弹性材料上的。 28. The process according to claim 16, characterized in that: a first positioning mark and the second mark are positioned in a converting process is applied to the elastic material.
29.根据权利要求16所述的工艺,其特征在于:弹性材料包括在相对于第一定位标记和第二定位标记的一机器方向上标记的图形。 29. A process according to claim 16, wherein: the resilient material comprises a first alignment mark with respect to the second alignment mark and a machine direction flag pattern.
30.根据权利要求29所述的工艺,其特征在于:所述图形包括第一定位标记。 30. A process according to claim 29, wherein: said pattern comprises a first positioning mark.
31.根据权利要求16所述的工艺,其特征在于:该工艺进一步包括将弹性材料段形成用于吸收衣物的一个侧翼片的步骤。 31. The process according to claim 16, wherein: the process further comprises the step of forming an elastic material segment for absorbing a flap of the laundry.
32.一种包括由权利要求31所述的工艺形成的侧翼片的吸收衣物。 32. A process comprising Claim 31 formed by the side flap absorbent garment.
33.一种用于提供前馈控制以便控制弹性材料的切割长度达到目标切割长度的工艺,其包括如下步骤:向一个供给辊传送弹性材料;假定弹性材料处于零张力T0下,近似估计位于弹性材料上的一第一定位标记和一第二定位标记之间的距离;当弹性材料处于张力下时,测定位于弹性材料上的第一定位标记和第二定位标记之间的距离;将在张力下的距离与在大致零张力下的距离的一目标比率与在张力下的距离与在大致零张力下的距离的一实际比率进行比较;响应在张力下的距离与在大致零张力下的距离的目标比率和实际比率之间的任何差异,对供给辊的速度进行调整;和对弹性材料进行切割,使其切割长度大致等于目标切割长度,从而形成弹性材料段。 33. A method for providing feedforward control to control cut length of an elastic material, a process to achieve the target cut length, comprising the steps of: transferring the elastic material to a supply roller; assuming an elastic material is under zero tension T0, located elastic approximated distance mark and a second alignment mark positioned between a first material; when the elastic material is under tension, the distance measured is located between the mark and the second registration mark on the elastic material of the first positioning; in tension and the ratio of the distance of an object in the distance under approximately zero tension to the distance under tension to the distance under approximately zero tension in a comparing the actual ratio; distance in response to tension in the distance under approximately zero tension Any differences in target rates and the actual ratio between the supply roller speed adjustment; and a pair of resilient material for cutting, cutting length approximately equal to the target so that the cut length, thus forming an elastic material segment.
34.根据权利要求33所述的工艺,其特征在于:该工艺进一步包括当弹性材料处于张力下时,将第一定位标记和第二定位标记施加到弹性材料上的步骤。 34. The process according to claim 33, wherein: the process further comprises the elastic material is under tension, it will be on the first step of an elastic material positioning mark and the second alignment mark is applied to.
35.根据权利要求33所述的工艺,其特征在于:供给辊的速度是作为目标距离、当弹性材料处于张力下时在第一定位标记和第二定位标记之间的距离、和假定弹性材料处于零张力下时在第一定位标记和第二定位标记之间的近似距离的一个函数来进行调整的。 35. A process according to claim 33, characterized in that: the speed of the supply roller as the target distance, when the elastic material is in a distance between the first positioning mark and the second registration mark while under tension, and assume that the elastic material at a function at the first location and a second positioning mark the approximate distance between the marks to be under zero tension adjustment.
36.根据权利要求35所述的工艺,其特征在于:响应切割长度反馈而对供给辊的速度进行进一步调整。 36. A process according to claim 35, characterized in that: in response to cut length feedback and the speed of the feed roller for further adjustments.
37.根据权利要求33所述的工艺,其特征在于:当弹性材料处于张力下在第一定位标记和第二定位标记之间的距离是在弹性材料位于供给辊上时进行测定的。 37. The process according to claim 33, wherein: when the elastic material is under tension when the measured distance between the first positioning mark and the second registration mark on the elastic material between the feed roller located on.
38.根据权利要求33所述的工艺,其特征在于:弹性材料包括在相对于第一定位标记和第二定位标记的一机器方向上标记的图形。 38. The process according to claim 33, wherein: the resilient material comprises a first alignment mark with respect to the second alignment mark and a machine direction flag pattern.
39.根据权利要求38所述的工艺,其特征在于:所述图形包括第一定位标记。 39. A process according to claim 38, wherein: said pattern comprises a first positioning mark.
40.根据权利要求33所述的工艺,其特征在于:第一定位标记和第二定位标记是在一个制造工序中施加到弹性材料上的。 40. The process according to claim 33, characterized in that: a first positioning mark and the second positioning mark in a manufacturing process is applied to the elastic material.
41.根据权利要求33所述的工艺,其特征在于:第一定位标记和第二定位标记是在一个转换工序中施加到弹性材料上的。 41. The process according to claim 33, characterized in that: a first positioning mark and the second mark are positioned in a converting process is applied to the elastic material.
42.根据权利要求33所述的工艺,其特征在于:该工艺进一步包括利用一个调节因子K来调整供给辊的速度Ls的步骤,如KL2/L0,其中K>0,L2是当弹性材料处于张力下时第一定位标记和第二定位标记之间的距离,L0是假定弹性材料处于零张力下时第一定位标记和第二定位标记之间的近似距离。 42. The process according to claim 33, wherein: the process further comprises the use of a factor K to adjust the speed of the supply roller Ls step of adjusting, as KL2 / L0, wherein K> 0, L2 is when the elastic material is when under tension from the first positioning mark and the second positioning between the marks, L0 is assumed elastic material is approximately zero tension distance under the first positioning mark and the second positioning tags.
43.根据权利要求42所述的工艺,其特征在于:供给辊的速度Ls根据以下关系式进行调整:Ls=LcL2/L0,其中Lc是目标切割长度。 43. A process according to claim 42, wherein: the feed roller speed Ls is adjusted according to the following relation: Ls = LcL2 / L0, wherein Lc is the target cut length.
44.根据权利要求33所述的工艺,其特征在于:该工艺进一步包括将弹性材料段形成用于吸收衣物的一侧翼片的步骤。 44. The process according to claim 33, wherein: the process further comprises a step for absorbing a laundry flap elastic material segment formed.
45.一种包括由权利要求44所述的工艺形成的侧翼片的吸收衣物。 45. A method comprising the process of claim 44, wherein the flap forming absorbent garment.
46.一种用于提供前馈控制以便控制弹性材料供给到一个转换工序中的速度的工艺,其包括如下步骤:在第一供给速率下将弹性材料供给到一个转换工序中;当弹性材料处于第一张力下时,确定位于弹性材料上的第一定位标记和第二定位标记之间的第一距离;当弹性材料处于第二张力下时,确定位于弹性材料上的第一定位标记和第二定位标记之间的第二距离;根据第一和第二距离之间的关系来确定用于弹性材料上的目标供给速率;和响应目标供给速率和第一供给速率之间的任何差异来调整弹性材料的第一供给速率,以便使第一供给速率与目标供给速率相匹配。 46. A method for providing feedforward control to control the elastic material is supplied to a velocity conversion step process, comprising the steps of: at a first feed rate of the elastic material is supplied to a conversion step; when the elastomeric material is in when a first tension, it is determined at the first mark and the second registration mark distance between the first location on an elastic material; when the elastic material is in the second tension, it is determined in the first positioning mark on the elastic material and a second distance between the second positioning mark; determined according to the relationship between the distance between the first and second target feed rate for the elastic material; and in response to any difference between the target feed rate and the first feed rate is adjusted between a first feed rate of the elastic material, so that the first feed rate to match the target feed rate.
47.根据权利要求46所述的工艺,其特征在于:该工艺进一步包括当弹性材料处于第一张力下时将第一定位标记和第二定位标记施加到弹性材料上。 47. The process according to claim 46, wherein: the process further comprises when the elastic material is under a first tension when the first positioning mark and the second alignment mark is applied to the elastic material.
48.根据权利要求46所述的工艺,其特征在于:该工艺进一步包括假定弹性材料处于零张力下,近似估计第一定位标记和第二定位标记之间的距离的步骤。 48. The process according to claim 46, wherein: the process further comprising an elastic material is assumed under zero tension, distance between the first step and the second alignment mark positioning mark between the approximations.
49.根据权利要求48所述的工艺,其特征在于:弹性材料的供给速率是作为目标供给速率、当弹性材料处于第二张力下时在第一定位标记和第二定位标记之间的第二距离、和假定弹性材料处于零张力下时在第一定位标记和第二定位标记之间的距离的一个函数来进行调整的。 49. The process according to claim 48, wherein: the feed rate of the elastic material is supplied as a target speed, when the elastic material is under the second tension when positioning between the first mark and the second alignment mark of the second distance, and assume that when the elastic material is a function of distance in the first positioning mark and the second registration mark to be between zero tension adjustment.
50.根据权利要求46所述的工艺,其特征在于:当弹性材料处于第一张力下时在第一定位标记和第二定位标记之间的距离是在弹性材料位于供给辊上时进行测定的。 50. The process according to claim 46, wherein: when the elastic material is under the first tension when the measured distance between the first positioning mark and the second registration mark on the elastic material between the feeding roller located at the .
51.根据权利要求46所述的工艺,其特征在于:弹性材料包括在相对于第一定位标记和第二定位标记的一机器方向上标记的图形。 51. The process according to claim 46, wherein: the resilient material comprises positioning relative to the first mark and the second alignment mark of a machine direction flag pattern.
52.根据权利要求51所述的工艺,其特征在于:所述图形包括第一定位标记。 52. The process according to claim 51, wherein: said pattern comprises a first positioning mark.
53.根据权利要求46所述的工艺,其特征在于:第一定位标记和第二定位标记是在一个制造工序中施加到弹性材料上的。 53. The process according to claim 46, characterized in that: a first positioning mark and the second positioning mark in a manufacturing process is applied to the elastic material.
54.根据权利要求46所述的工艺,其特征在于:第一定位标记和第二定位标记是在一个转换工序中施加到弹性材料上的。 54. The process according to claim 46, wherein: the first positioning mark and the second mark are positioned in a converting process is applied to the elastic material.
55.根据权利要求46所述的工艺,其特征在于:该工艺进一步包括利用一个调节因子K来调整弹性材料的第一供给速率Ls的步骤,如KL2/L0,其中K>0,L2是在弹性材料处于第一张力下时第一定位标记和第二定位标记之间的第一距离,L0是在弹性材料处于第二张力下时第一定位标记和第二定位标记之间的第二距离。 55. The process according to claim 46, wherein: the process further comprises the use of a factor K to adjust the elastomeric material of the first step of adjusting the feed rate Ls, as KL2 / L0, wherein K> 0, L2 is the elastic material is under the first tension when the first distance of the first mark and the second alignment mark positioned between, L0 is an elastic material is under the second tension when the second distance between the first mark and the second alignment mark positioned between .
56.根据权利要求55所述的工艺,其特征在于:弹性材料的第一供给速率Ls根据以下关系式进行调整:Ls=LcL2/L0,其中Lc是目标切割长度。 56. The process according to claim 55, wherein: the first elastomeric material Ls feed rate is adjusted according to the following relation: Ls = LcL2 / L0, wherein Lc is the target cut length.
57.根据权利要求46所述的工艺,其特征在于:该工艺进一步包括将弹性材料段形成用于吸收衣物的一个侧翼片的步骤。 57. The process according to claim 46, wherein: the process further comprises the step of forming an elastic material segment for absorbing a flap of the laundry.
58.一种包括由权利要求57所述的工艺形成的侧翼片的吸收衣物。 58. A method comprising the process of claim 57 wherein the flap forming absorbent garment.
Description  translated from Chinese
用于弹性材料的前馈控制系统 Feedforward control system for the elastomeric material

技术领域 Technical Field

本发明涉及到一种用于提供前馈控制以便控制作为一种较大物料处理或者转换工序的一部分来供给的弹性材料的量的工艺。 The present invention relates to a method for providing an amount of the former feed-forward control to control as part of a larger material handling or converting process to the process of supplying the elastomeric material.

背景技术 Background

在把弹性材料网状物放置到吸收衣物上或其它应用之前,可以使用许多不同的工艺把连续的弹性材料网状物例如拉伸结合的叠层材料切割成离散长度。 Prior to the application of the absorbent garment or other elastic material web is placed, it may be used in many different processes a continuous web of an elastic material such as stretch bonded laminate is cut into discrete lengths. 这样的工艺通常包括当检测到切割长度误差时来校正材料切割长度的反馈控制。 Such processes typically include cut length when detecting error correcting material cut length feedback control. 该“切割长度”是拉伸结合的叠层材料(SBL)或者其它弹性材料在机器方向上的连续切割之间的长度。 The "cut length" is the length between consecutive cut stretch bonded laminate (SBL), or other elastomeric material in the machine direction. 用于一种弹性材料切割长度的反馈控制通常依赖于切割长度误差来确定工序校正的量值,该切割长度误差为测定切割长度与目标切割长度之间的差值。 Cut length of an elastic material for feedback control usually rely on cutting length error to determine the magnitude of the correction process, the cutting length cutting length measurement error is the difference between the length of the cutting target.

研究表明从一卷SBL的起始端到末端会存在一种“拉伸能力”的梯度。 Studies have shown that the end there will be a "stretch capability" of the gradient from the beginning of the end to roll SBL. 例如,如果在一个特定张力下在一卷SBL的起始端切割一片SBL,和在同样的张力下在一卷SBL的末端切割一片SBL,在该卷末端切割的SBL片的切割长度会更长一些。 For example, if in a particular tension at the beginning of the end of cutting a roll of SBL SBL, and at the same tension at the end of a roll cutting SBL SBL, cutting the length of the cut end of the roll sheet may be longer SBL . 在一种反馈控制系统中,由材料性能的变化而导致在切割长度上的这种变化直到在翼片被切割之后检测到在切割长度上的一个误差时才可以进行校正。 In a feedback control system, the change in material properties caused by this change in cut length until when the flap is cut after an error is detected in the cut length can be corrected. 结果是由于该系统直到弹性材料被切割以后才测定到在切割长度上的变化,因此在材料性能或者加工条件突然改变时会导致在切割长度上的较大误差。 Results are due to the system until the elastomeric material was measured after being cut on the cutting length to change, and therefore the material properties or sudden changes in processing conditions result in large errors in the cutting length.

发明内容 DISCLOSURE

为了克服在先前技术中遇到的上述困难和难题,发现了一种控制弹性材料供给速率的新工艺。 To overcome these difficulties and problems encountered in the prior art, we discovered a method of controlling an elastic material supply rate of new technology.

本发明涉及一种工艺,该工艺使用一种前馈或预测控制系统来减少在材料性质或者工序变化如材料接合中的变化对弹性材料切割长度的影响。 The present invention relates to a process which uses a feedforward or predictive control system to reduce the engagement of such material change affects the length of the cutting material properties of elastic material or process changes. 通常,该工艺提供了对正在供给的材料网状物长度进行控制的一种方式,和当需要时,根据从该工序中接收到的信息来快速改变上述长度。 Typically, the process provides a way for the length of the web material being fed controlled, and when necessary, according to the reception from the process to change the longitudinal information quickly. 如上所述,使用该工艺来控制供给速率,但是也可以使用该工艺来控制切割长度和其它性能,例如网状物的张力。 As described above, the use of this process to control the feed rate, the process may also be used to control cut length and other properties, such as tensile mesh.

材料性能不能在辊或箱体之内或之间进行调整;然而,本发明提供了在一种转换工序中对网状物供给速率的调整。 Material properties can be adjusted within or between the roll or box; however, the present invention provides an adjustment of the conversion process feed rate of the web. 控制供给速率被控制成与目标供给速率相一致,该目标供给速率与在零张力下的材料长度相关。 Control the feed rate is controlled to be consistent with the target feed rate, the target rate is related to the length of the material supplied at zero tension. 当材料性能改变时,目标供给速率也改变。 When the material properties change, the target feed rate also changes.

更具体地,该工艺包括在切断弹性材料之前测定位于弹性材料上的定位标记之间的距离。 More specifically, the process includes cutting the elastomeric material prior to positioning the elastic material located at a distance measured on the tags. 这些测定值用作一种输入信号输入到控制系统中,来直接控制切割长度,或与测定的切割长度一起来确定为了保持弹性材料切割长度为目标切割长度而需要的供给辊的速度校正。 These measured values are used as an input signal is input to the control system to directly control the cut length, or cut length measurement together determine the cut length of an elastic material in order to maintain the target speed required cutting length correction supplying roller.

也可以使用本发明来标记包括一种标记的图形的一种弹性材料的切割,以使每一片切割材料都包括有图形。 The present invention may also be used to mark a material comprising an elastomeric mark pattern cut, so that each piece of cut material include graphics.

注意到前述内容,本发明的一个特征和优点就是提供了一种工艺,该工艺是为了提供前馈控制以便控制弹性材料切割长度的。 Noting the foregoing, a feature and advantage of the present invention is to provide a process which is to provide a feedforward control to control cut length of an elastic material.

本发明的另一个特征和优点是提供了一种工艺,该工艺提供了对网状物的供给速率或者对在该工序中正在供给的材料量进行控制的一种方式,和当需要时,根据从该工序中接收到的信息来快速改变上述供给速率或供给的材料量。 Another feature and advantage of the present invention is to provide a process which provides a mesh or feed rate to the amount of material in this process is a way of controlling the supply of, and when necessary, according to received from the step to the information to quickly change the amount of said material supply rate or supply.

附图说明 Brief Description

图1是一个用于把弹性材料片切断并将切断的弹性材料片放置到一个正在移动的网状物上的工序图;图2是一种拉伸结合的叠层材料的一个张力-应变图;图3是一片弹性材料在零张力T0下的一个顶视图;图4是一片弹性材料在生产张力T1下的一个顶视图;图5是一片弹性材料在转换张力T2下的一个顶视图;图6是一种前馈切割长度控制系统的一个示意图。 Figure 1 is a sheet of elastomeric material for the cutting and the cut sheet of elastomeric material placed in a moving process drawing on the web; FIG. 2 is a drawing tension of a bonded laminate - strain diagram ; FIG. 3 is a resilient material at zero tension T0 is a top view; FIG. 4 is a resilient material in the production of a top view of the tension T1; FIG. 5 is a piece of elastic material under converting tension T2 is a top plan view; Fig. 6 is a schematic diagram of the control system of feed-cut length of a front.

定义“吸收衣物”指的是训练裤、尿布、失禁产品、其它个人护理或健康护理产品,包括医用服装或者类似物。 Definition "absorbent garment" refers to training pants, diapers, incontinence products, other personal care or health care products, including medical garments, or the like.

“弹性的”和“弹性”指的是一种材料或者复合材料在去除使其产生形变的力之后恢复到其原始尺寸和形状的一种趋向。 "Resilient" and "flexible" refers to a material or a composite material to produce deformed after removal of the force to return to its original size and shape of a trend.

“机器方向”指的是织物的长度方向,也就是该织物的生产方向,而相对的“横向方向”指的是织物的宽度方向,也就是垂直于机器方向的方向。 "Machine direction" refers to the longitudinal direction of the fabric, that is, the direction of the fabric production, while the opposite "lateral direction" refers to the width direction of the fabric, i.e. a direction perpendicular to the machine direction.

“拉伸结合的叠层材料”指的是一种具有至少两层的复合材料,其中一层是一种收缩层和另一层为一种弹性层。 "Stretch bonded laminate" refers to a composite material having at least two layers, wherein one layer is a shrink layer and the other layer is an elastic layer. 当弹性层处于一种伸长状态下时上述层接合在一起,这样当松弛上述层时,收缩层就会打褶。 When the elastic layer is in an elongated state of the layers are joined together, so that when the slack above layer, layer will shrink pleated.

“张力”指的是使一个主体有伸长趋向的一种力,或者在主体中抵制伸长的平衡力。 "Tension" means power to make an elongated body has a tendency, or boycott elongated counterweight in the body.

具体实施方式 DETAILED DESCRIPTION

本发明涉及到为了提供前馈控制以便控制一种作为一种较大物料处理或者转换工序的一部分来供给的弹性材料供给量的一种工艺。 The present invention relates to provide feedback control to the front to control the supply of a process of a resilient material as a material handling or convert part of a larger process to supply. 前馈或预测控制减少了在工序步骤中材料性质变化或者出现加工故障对弹性材料供给量的影响。 Feedforward or predictive control reduces the variation in material properties or process steps in processing problems affecting the supply amount of elastic material. 前馈控制是通过测定位于弹性材料上的定位标记之间的距离来完成的。 Feedforward control is located by measuring the distance between the marks on the positioning of an elastic material to complete. 这些测定值用作一种输入信号输入到一种控制系统中,来直接控制弹性材料的供给量,或与测定的弹性材料供给量一起来控制供给量,从而确定为了将弹性材料供给量保持在一种目标水平所需的供给辊的速度校正。 These measured values are used as an input signal is input to a control system to directly control the supply amount of elastomeric material, or an elastic material supply amount determined supply amount control together, in order to determine the supply amount of the elastic material held in A desired target level of the supply roller speed correction. 为了易于解释,在此以后将根据控制弹性材料切割长度的一种工艺来进行说明。 For ease of explanation, in the future this will be based on a process control cut length of an elastic material will be described.

图1是可以利用该工艺切割弹性材料20例如弹性接合的叠层材料(SBL),并将切割的弹性材料段放置到一移动的网状物22上的一种工艺的一个实施例的图。 1 is that the process can be used for cutting elastomeric material 20 such as an elastic laminate bonded (SBL), and the elastomeric material cut view of a segment is placed into a moving web of a process embodiment of Example 22. 在这种情况下,弹性材料段20可以用于形成吸收衣物的侧翼片。 In this case, the resilient material segment 20 may be used to form a flap absorbent garment.

首先,弹性材料20从一个退卷装置24上进行退绕,上述装置例如可从Martin Automatic,Inc.,Rockford,Illinois得到。 First, elastic material 20 is unwound from a unwinding device 24, for example, from the above-described apparatus Martin Automatic, Inc., Rockford, Illinois obtained. 可选择地,可以使用两个或者更多退卷装置24,例如其中一个退卷装置24供应第一侧,和另一个退卷装置24供应第二侧。 Alternatively, you can use two or more unwinding device 24, such as where the supply side of a first unwinding device 24, and another unwinding device 24 supplying a second side. 弹性网状物20可以通过一个驱动辊,例如在图1中所示的辊26,该辊可作为用于控制网状物20中张力的一种装置,接下来通过一个测定网状物张力的辊杆28。 Elastic mesh 20 may be a drive roller, for example, in roller 26 shown in FIG. 1, the roller can be used as a means for controlling the tension in the web 20, followed by a determination of web tension roll bar 28. 接着网状物20通过一个网状物导向装置30。 Then mesh 20 means the mesh 30 by a guide. 可以使用一个网状物导向装置30来控制网状物20沿着制造工序中的横向方向的位置,从而能够供给到一个真空供给辊32上。 You can use a web guide means 30 to control the manufacturing process of the web 20 along the transverse direction of the position, whereby a vacuum can be supplied to the supply roller 32. 为了实现本发明的目的,横向方向通常位于通过该工序被传送的材料平面内,和与机器方向垂直对准。 To achieve the object of the present invention, generally located in the transverse direction is transmitted through the material plane step, and is aligned perpendicular to the machine direction. 机器方向在图1中用箭头34指示。 Machine direction indicating by arrow 34 in FIG. 1.

真空供给辊32控制着弹性材料20供给到一个砧辊36上的速率,和网状物的张力和材料性质一起来确定切割长度。 Vacuum supply roller 32 controls the elastic material 20 is supplied to the rate on an anvil roll 36, and the tension and the material properties of the mesh together to determine the cut length. 当弹性材料20位于砧辊36和一个包括一个切割机构42例如一个或多个刀片的夹辊40之间时,其被切割成具有离散长度的材料片。 When the elastic material 20 is located in an anvil roll 36 and a cutter mechanism 42 comprises, for example when one or more blades 40 sandwiched between the rollers, the material which is cut into sheets having a discrete length. 砧辊36适当地覆盖有真空孔,上述真空孔保持着弹性材料片20,直到弹性材料片20释放到一个侧翼片敷料器44上或其它应用装置上。 Anvil roller 36 is suitably covered with vacuum holes, the vacuum holes to maintain a resilient material sheet 20, the upper plate 20 until the elastomeric material released into a flap applicator 44 or other application devices. 一个合适的侧翼片敷料器44的例子在美国专利No.5,224,405中有详细描述,该文献结合在此作为参考。 An example of a suitable applicator side flaps 44 are described in detail in U.S. Patent No.5,224,405, which is incorporated herein by reference. 侧翼片敷料器44将弹性材料片20放置到一个产品上用来形成例如吸收衣物的侧翼片。 Flap applicator 44 sheet of elastomeric material 20 is placed on a product to be used to form, for example absorption clothes flap.

为了在系统中提供前馈控制,以特定距离均匀隔开的定位标记46放置到弹性网状物20上,如图3所示,定位标记46之间的距离刚好在将弹性材料20供给到真空供给辊32上之前进行测定。 To provide feedforward control in the system, to a certain distance of the positioning marks 46 spaced uniformly placed on the elastic web 20, shown in Figure 3, the distance 46 between the positioning marks just the elastomeric material 20 fed into the vacuum measured on the supply roller before 32. 这些测定值为控制系统48(图6)提供一个预测输入,这些测定值依次来调整供给辊32的速度,该供给辊32的速度用来调整弹性材料20的供给速率,从而减少不期望的材料性质变化所产生的影响。 The measured value the control system 48 (FIG. 6) to provide a predictive input, these measured values sequentially to adjust the speed of the supply roller 32, the speed of the supply roller 32 is used to adjust the feed rate of an elastic material 20, thereby reducing undesired material the impact of changes in the nature. 可选择地,用来代替调整供给辊32的速度,控制系统48可以调整在弹性网状物20上的张力,来改变材料的切断量。 Alternatively, instead of adjusting the speed to feed roller 32, the control system 48 can adjust the tension on the elastic 20 mesh, to change the amount of material cut.

研究表明,具有如下一个方程式来决定弹性材料的性质,和决定这些性质是如何与加工处理中的切割长度相关的。 Studies have shown that, with the following equation to determine the elasticity of a material nature, and decide how these properties are processed in cut length dependent. 上述方程式是相对于一种具有代表性的弹性材料20的一个张力应变曲线50的,如图2所示。 With respect to the above equation is representative of a resilient material having a tensile strain curve 50 is 20, as shown in Fig. 方程式为:Lc=(E)(Ls)/(E+TA) (1)其中,Lc是弹性材料的切割长度或者弹性材料在机器方向上被切割的量,其例如以厘米/产品为单位进行测定;E是初始模量,或者在弹性材料张力-应变曲线(图2)中10-30%的应变下的直线斜率,例如其可以以克/厘米为单位进行测定;Ls是弹性材料的供给速率,或者真空供给辊的速度,例如其可以以厘米/产品为单位进行测定;T是施加到弹性网状物上的张力值,例如其可以以克/厘米为单位进行测定;和A是初始模量(E)线的初始截距或者y-截距,例如其可以以克/厘米为单位进行测定。 The equation is: Lc = (E) (Ls) / (E + TA) (1) wherein, Lc is the cut length of the elastic material, the amount or elastomeric material to be cut in the machine direction, which for instance in centimeters / product units Determination; E is the initial modulus or elastomeric material tension - strain curve (Fig. 2) in the slope of the strain of 10-30%, for example, which can be measured in grams / centimeters; Ls is supplied to the elastic material rate, or speed of the vacuum feed roller, for example, it may be in centimeters / product units measured; T is the tension applied to the elastic web, for example, which may be in grams / centimeters measured; and A is the initial y- intercept or intercept initial modulus (E) line, which may be for example, g / cc measured in units.

用来估计在加工处理中的模量和截距的一种方式是应用如下方程式:应变=ΔL/L (2)其中L是弹性材料20在零张力下的长度和ΔL是当材料放置于张力T下而导致的长度变化。 One way to estimate the processing in the modulus and intercept is to apply the following equation: strain = ΔL / L (2) where L is the length of the elastic material 20 under zero tension and ΔL is that when the material is placed in tension T length change caused under. 根据方程式(2),张力是与长度成反比的。 According to equation (2), the tension is inversely proportional to the length. 结果是,可能采取一种即时长度测定,且该长度与张力相关联以便推测在图2中的一部分。 As a result, it may take an instant length measurement, and the length and tension presumed to be associated in part 2 of Fig.

通过测定位于弹性材料20上的定位标记20之间的距离,可以获得一个即时测定长度。 By measuring the elastic material positioned 20 located on the distance between the marks, you can get an instant measurement length. 定位标记46可以是任何类型的合适的标记,例如线、点、孔、光学光亮剂、或者在近红外线或者通常是在可见光范围之外可探测到的一种材料。 Positioning mark 46 may be any type of suitable marker, such as lines, dots, holes, optical brighteners, or near infrared or visible range is usually outside of a detectable material. 定位标记46可以在制造工序中施加到弹性材料20上,制造工序就是制造弹性材料的一工序。 Positioning marks 46 may be applied to the elastic material 20 in the manufacturing process, the manufacturing process is a process of manufacturing an elastic material. 可选择地,定位标记46可以在转换工序中施加到弹性材料20上,合适的是处于低网状物张力之下的一个位置。 Alternatively, the positioning mark 46 may be applied to the elastic material 20 in the conversion process, suitably at a location under low web tension. 一个传感器52,例如可以从BannerEngineering Corp.of Minneapolis,Minnesota得到的一种摄影镜(photoeye),可以用来探测在转换工序中的定位标记46,转换工序就是出现材料脱离生产该材料的状态,例如从一个辊或花彩脱离,来把上述材料结合到制造的物品中的工序。 A sensor 52, for example, from BannerEngineering Corp.of Minneapolis, Minnesota obtain a photographic lens (photoeye), can be used to detect the positioning mark in the conversion step 46, the conversion process is the possibility of the production of the material from the material state, e.g. from a roll or festoon out to the above-described materials incorporated into articles of manufacture in the process. 例如,转换工序可以从真空供给辊32到侧翼片敷料器44时发生。 For example, the conversion process may be 32 to flap occurs roller applicator 44 from the vacuum supply.

当弹性材料20处于一种松弛状态,可以忽略存在于弹性网状物20中的张力T0。 When the elastic material 20 is in a relaxed state, you can ignore the existence of the elastic mesh 20 tension T0. 在制造工序中存在于弹性网状物20中的张力T1是施加定位标记46处理中的张力值。 In the manufacturing process in the presence of the elastic web 20 tension T1 is applied to the positioning marks 46 Treatment of tension. 在转换工序中在弹性网状物20中的张力T2是将弹性网状物20供给到真空输入辊32上的张力值。 In the conversion process in the elastic mesh 20 T2 is the tension of the elastic mesh 20 is supplied to the tension rollers 32 on the vacuum.

当弹性网状物20处于零张力T0下时,位于定位标记46之间的距离L0在图3中示出。 When the elastic mesh 20 at zero tension T0, located in the registration mark distance between L0 46 is shown in Figure 3. 当弹性网状物20处于生产张力T1下时,位于定位标记46之间的距离L1在图4中示出。 When the elastic mesh 20 in the production of tension T1, located in the registration mark distance between L1 46 shown in FIG. 4. 当弹性网状物20处于转换张力T2下时,位于定位标记46之间的距离L2在图5中示出。 When the elastic mesh 20 in converting tension T2, the locating mark distance between L2 46 shown in FIG. 5. 位于定位标记46之间的距离L2可以刚好在将弹性网状物20供给到真空输入辊32上之前进行测定,或者也可以在弹性网状物20位于真空输入辊32上时进行测定。 Measured between the alignment mark 46 located before the distance L2 can just be an elastic mesh 20 is supplied to the vacuum rollers 32, or may be located in the elastic web 20 is measured when the rollers 32 on the vacuum.

利用点(S1,T1)和(S2,T2),弹性材料的张力-应变关系近似于一条直线。 The use of point (S1, T1) and (S2, T2), the tension of the elastic material - strain similar to a straight line. 结果是,初始模量和初始截距可以利用这两点(S1,T1)和(S2,T2)估计出,如图2中所示。 As a result, initial modulus and can intercept the initial two points (S1, T1) and (S2, T2) estimate, as shown in Fig. 对于以下的方程式,张力是以每单位宽度上的力来测定的。 For the following equation, the tension is the force per unit width to assay.

S1=(L1-L0)/L0(3)S2=(L2-L0)/L0(4)由于E是直线的斜率,它遵循下述关系:E=(T2-T1)/(S2-S1) (5)把方程式3和4代入到方程式5中,结果是:E=(T2-T1)L0/(L2-L1) (6)众所周知的直线方程式为:y=mx+b (7)其中m是直线的斜率(Δy/Δx),b是一个常量,x和y分别为沿x轴和y轴的距离。 S1 = (L1-L0) / L0 (3) S2 = (L2-L0) / L0 (4) Since E is the slope of the line, it follows the following relationship: E = (T2-T1) / (S2-S1) (5) the equations 3 and 4 substituted into equation 5, the result is: E = (T2-T1) L0 / (L2-L1) (6) known a linear equation is: y = mx + b (7) where m is the slope of the line (Δy / Δx), b is a constant, x and y are the x-axis and y-axis distance. 把点(S2,T2)、斜率(E)和初始截距(A)代入到方程式7中,就得到如下的关系式:T2=(E)(S2)+A (8)将方程式4和6代入到方程式8中,就得到如下结果:A=T2-[(T2-T1)(L2-L0)]/(L2-L1) (9)将方程式6和9代入到方程式1中,就得到如下结果:Lc=L0Ls/L2(10)从方程式10中可以推出,弹性材料的供给速率Ls是:Ls=LcL2/L0(11)当弹性材料20处于零张力T0下时,定位标记46之间的距离L0作为制造工序的张力T1和距离L1的一个函数用实验方法来确定,其中距离L1为当弹性网状物20处于制造工序的张力T1下时的定位标记46之间的距离。 The point (S2, T2), the slope (E) and the initial intercept (A) is substituted into Equation 7, the following relationship is obtained: T2 = (E) (S2) + A (8) The equations 4 and 6 substituting into equation 8, the following results were obtained: A = T2 - [(T2-T1) (L2-L0)] / (L2-L1) (9) to Equation 6 and 9 is substituted into Equation 1, is obtained as follows Results: Lc = L0Ls / L2 (10) from the equation 10 can be introduced, the feed rate of the elastic material Ls is: Ls = LcL2 / L0 (11) when the elastic material 20 is in the zero tension T0, located between markers 46 distance L0 T1 tension as the manufacturing process and a function of the distance L1 is experimentally determined where the distance L1 is when the elastic mesh 20 in positioning the manufacturing process under tension T1 marker when the distance 46 between. 由于材料不可能在该工序中的任何点都处于零张力下,但是可以假定材料处于零张力下来估计距离L0。 Since the material is not possible in this process at any point in zero tension, but it can be assumed the material is zero tension down the estimated distance L0. 在制造工序中的小张力下,L0大致等于L1。 In the manufacturing process a small tension, L0 is substantially equal to L1. 方程式11可以换一种方式重新叙述,这样L0可以用已知量来表示,而不用估计L0。 Equation 11 can be restated in a different way, so that L0 is represented by a known amount, rather than estimate L0.

方程式11的转换方式依赖于先前提过的弹性材料的张力-应变之间的一种近似直线的关系(图2)。 Conversion of Equation 11 relies on the premise of the first through the tension of the elastic material - a strain of approximate linear relationship between (FIG. 2). 由于L值是与在图中的S值直接相关的,直线的斜率m可以表示成如下关系:m=(L2-L1)/(T2-T1) (12)把点(T2,L2)代入到直线的标准方程式(y=mx+b)中,直线的方程式变为:L2=[(L2-L1)/(T2-T1)]T2+b (13)从方程式13可以推出,在y轴上的截距b可以进行如下计算:b=L2-T2[(L2-L1)/(T2-T1)] (14)把方程式12和14代入到标准直线方程式中,导出如下的线性方程式:y=[(L2-L1)/(T2-T1)]x+{L2-T2[(L2-L1)/(T2-T1)]} (15)当张力T(x值)为0时,[(L2-L1)/(T2-T1)]x项可以从方程式15中消去,y值定义为L0,剩余以下项:y=L0=L2-T2[(L2-L1)/(T2-T1)] (16)把方程式16代入到方程式11中,导出:Ls=Lc/{1-(T2/L2)[(L2-L1)/(T2-T1)]} (17)在方程式11和17中,切割长度Lc是目标切割长度,或者目标距离。 Since the L value is the value of S in the figure directly related to, the slope m can be expressed as the following relationship: m = (L2-L1) / (T2-T1) (12) to the point (T2, L2) is substituted into linear standard equation (y = mx + b), the linear equation becomes: L2 = [(L2-L1) / (T2-T1)] T2 + b (13) can be introduced from equation 13, the y-axis intercept b can be calculated as follows: b = L2-T2 [(L2-L1) / (T2-T1)] (14) substituting the equations 12 and 14 into the standard linear equation, a linear equation derived as follows: y = [(L2-L1) / (T2-T1)] x + {L2-T2 [(L2-L1) / (T2-T1)]} (15) when the tension T (x value) is 0, [(L2- L1) / (T2-T1)] x 15 items can be eliminated from the equation, y value is defined as L0, the remainder of the following items: y = L0 = L2-T2 [(L2-L1) / (T2-T1)] (16 ) substituting the equation 16 into equation 11 is derived: Ls = Lc / {1- (T2 / L2) [(L2-L1) / (T2-T1)]} (17) In equation 11 and 17, the cutting length Lc is the target cut length, or target distance. 在存在或不存在切割长度反馈下,方程式11和17可以作为基数应用在一个控制系统中,以便运算弹性材料20的供给速率Ls(或者真空供给辊(VFR)32的速度)。 In the presence or absence of the cut length feedback, the equations 11 and 17 can be used as the base used in a control system for calculating an elastic material supply rate of 20 Ls (or speed vacuum supply roll (VFR) 32's). 调整弹性材料20的供给速率Ls(或者VFR32的速度)以便获得弹性材料20的下述切割段,其中每一段具有大致等于目标切割长度Lc的长度。 Elastomeric material feed rate adjusting Ls (or VFR32 speed) so as to obtain an elastic material 20 following the cutting section 20, wherein each segment has a length substantially equal to the target cut length Lc. 一个调节因子K可以使用在方程式18所示的调节函数中。 An adjustment factor K can be used in equation 18 in adjustment function.

KL2/L1或者KL2/L0,其中K>0 (18)可选择地,在本发明的工艺中,不用将一个测定长度与一个目标长度进行比较,而是将一个测定的供给速率与一个目标供给速率来进行比较。 KL2 / L1 or KL2 / L0, wherein K> 0 (18) Alternatively, in the process of the present invention, without a determination of the length of the length is compared to a target, but a measured feed rate to a target supply rate comparison. 只要作为一个比较项的L2/L1或者L2/L0保持一个定值,切割长度也将大致保持恒定。 Just as a comparative term L2 / L1 or L2 / L0 maintain a fixed value, cutting length will generally remain constant.

图6是一种可能的控制系统48的一个例子,其中该系统可以与例如图1中所示的工艺一起使用。 Figure 6 is an example of a possible control system 48, which can be used with the system such as the process shown in FIG. 如图6所示,目标切割长度、或者切割长度设定值和切割长度反馈输入到系统48中。 As shown in Figure 6, the target cut length, or cut length setpoint, and the cut length feedback input into the system 48. 切割长度反馈,也就是在该工序中弹性材料20已经被切割成段的实际测定值,可以从一种自动记录和检测系统获得。 Cut length feedback, which is an elastic material 20 has been actually measured value in the process cut into segments, can be obtained from an automatic recording and detection system. 切割长度误差的检测可以即时将一个信号发送到一个第一控制算法中,例如一个比例-积分(PI)控制器54,该控制器可以进行最佳的调整以得到目标切割长度。 Cutting length error detection can instantly send a signal to a first control algorithm, such as a proportional - integral (PI) controller 54, the controller can be adjusted to obtain optimum target cut length. 第一控制器54可以计算出一个目标比率。 The first controller 54 can calculate a target ratio. 也可以计算出当弹性材料20处于转换张力T2下时的定位标记46之间的距离L2与在定位标记之间的生产距离L1的一种实际比率。 It can also calculate the elastic material 20 is positioned at the time of conversion tension T2 L2 46 mark distance between the actual ratio and a distance L1 in the production localization tags. 然后可以比较目标比率和实际比率。 You can then compare the target rate and the actual rate. 如上所述,在低张力下,L1近似于L0,可以近似用作L0。 As described above, at low tension, L1 similar L0, can be approximated as L0. 另外,L1和L0之间的确切关系可以用试验进行确定。 In addition, the exact relationship between L1 and L0 can be determined experimentally. 定位标记之间的距离可以影响响应时间。 The distance between the registration mark can affect response time. 标记之间的较短距离可以导致较短的响应时间。 Shorter distance between the marks can lead to a shorter response time.

目标比率与实际比率相比导致一个比率误差。 Compared to the target rate and the actual ratio results in a ratio error. 该系统把比率误差加上“1”并将结果与VFR速度参考值相比较,进一步导致一个VFR速度的调整参考值。 The error rate of the system with "1" and the results were compared with VFR speed reference value, and further lead to a VFR adjust the reference speed. 把VFR速度的调整参考值与一个VFR速度反馈进行比较。 The adjustment of the reference value with a VFR VFR speed compare speed feedback. VFR速度误差的检测向一个第二控制算法系统例如一个第二PI控制器56发送一个信号。 A second control algorithm system such as a second PI controller 56 sends a signal to VFR speed error detection. 第二PI控制器56计算一个VFR扭矩基准,然后调整VFR32的速度。 The second PI controller 56 computes a VFR torque reference, then adjust VFR32 speed.

控制系统48也可以在没有切割长度反馈下起作用,并且改为依赖于目标切割长度和定位标记46之间的测定到的比率L2/L1来调整VFR32的速度。 Control system 48 may be cut in lengths no feedback at work, and instead rely on the objective determination of cutting length and positioning marker 46 to the ratio between L2 / L1 to adjust VFR32 speed.

也可以用本发明的工艺来切割包括如图5所示的在机器方向上具有注册图形58的弹性材料20。 The process of the present invention may also be used to cut comprises as shown in Fig. 5 having graphics registered in the machine direction of the elastic material 58 is 20. 更具体地,在VFR32的速度开始增加或减少之后来使图形58相对于切割边缘居中,可以控制弹性材料20的供给速率,这样图形58保持大致位于切割边缘的中间。 More specifically, the speed starts to increase or decrease VFR32 subsequent patterning of the cutting edge 58 with respect to the center, can control the feed rate 20 of an elastic material, so that the graphic 58 remains substantially in the middle of the cutting edge. 因此图形58相对于定位标记46在机器方向定位,这样图形58可以在连续的定位标记46之间或者与定位标记46对准。 So graphic 58 with respect to the alignment mark 46 is positioned in the machine direction, so that graphics can mark 58 positioned between successive 46 or 46 is aligned with the positioning mark. 通过这种方式的使用,本发明的工艺可以在弹性材料20的每一切割段上设置一个居中的图形58。 By using this approach, the process of the present invention may be provided with a centered graphic on the cutting section 58 of each elastic material 20.

可以意识到为了说明本发明目的而对前述实施例做出的详细描述并不作为本发明保护范围的限定。 It can realize the purpose of illustrating the present invention and the foregoing detailed description is not made in the implementation of the scope of the invention as defined. 虽然上述只对本发明的几个典型实施例进行了详细描述,但是本领域的普通技术人员很容易地意识到在典型实施例的基础上可以作出本质上并不脱离本发明独创性的教导和优点的许多变型。 Although the above is only a few typical embodiments of the present invention has been described in detail, but one of ordinary skill in the art will readily be made aware of the nature of the invention without departing from the original teachings and advantages of the basis of the exemplary embodiment of the Many variants. 因此,所有这样的变型都将被包括在本发明的保护范围之内,其在所附的权利要求书和在此的所有等同物中进行限定。 Accordingly, all such modifications are intended to be included within the scope of the present invention, in its book of the appended claims and equivalents in all of this is carried out is defined. 此外,可以认识到所设想的一些实施例不会具有某些实施例尤其是优选实施例的所有优点,但是一个具体优点的缺少不能必然推断出其意味着这样的一个实施例就在本发明的保护范围之外。 In addition, some embodiments may not recognize envisioned having all the advantages of some particular embodiments of the preferred embodiment, but a particular advantage of the lack of means can not necessarily infer such an embodiment in the present invention protection range.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
CN101451285B4 Dec 20089 Jan 2013B.T.S.R.国际股份公司Method and arrangement for feeding, with yarn of constant absorbed length, a textile machine operating on a plurality of yarns
CN105189059A *18 Apr 201423 Dec 2015株式会社普利司通Excess piece protrusion amount measurement method and excess piece protrusion amount measurement device
Classifications
International ClassificationB65H23/188, A61F13/49, B26D5/32, A61F13/15, B26D7/14, A61F13/56, B65H26/06
Cooperative ClassificationY10T83/543, Y10T83/178, Y10T83/474, Y10T83/159, Y10T83/0419, Y10T83/0424, Y10T83/148, Y10T83/536, Y10T83/4691, Y10T83/4664, Y10T83/0538, Y10S83/937, A61F13/15772, B26D7/14, B26D5/32, B65H2513/104, B65H2511/512, A61F13/15593, B65H2515/31, B65H23/1882, B65H2301/3112, B65H2511/22, B65H2557/262
European ClassificationB26D7/14, A61F13/15M9, B26D5/32, B65H23/188A, A61F13/15M2B
Legal Events
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11 Jul 2007C14Granted