EP0803335A1 - Improvements introduced in devices for the continuous manufacturing of concrete elements - Google Patents

Improvements introduced in devices for the continuous manufacturing of concrete elements Download PDF

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Publication number
EP0803335A1
EP0803335A1 EP97500074A EP97500074A EP0803335A1 EP 0803335 A1 EP0803335 A1 EP 0803335A1 EP 97500074 A EP97500074 A EP 97500074A EP 97500074 A EP97500074 A EP 97500074A EP 0803335 A1 EP0803335 A1 EP 0803335A1
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Prior art keywords
mold
concrete
chassis
improvements according
machine
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EP97500074A
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German (de)
French (fr)
Inventor
Ismael Mateu Serravinals
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Gestion de Propiedad Industrial Bibel SL
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Gestion de Propiedad Industrial Bibel SL
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B1/00—Producing shaped prefabricated articles from the material
    • B28B1/08—Producing shaped prefabricated articles from the material by vibrating or jolting
    • B28B1/084—Producing shaped prefabricated articles from the material by vibrating or jolting the vibrating moulds or cores being moved horizontally for making strands of moulded articles

Definitions

  • the present invention refers, as its title indicates, to improvements introduced into machines for the continuous manufacture of concrete parts, of the type which include a chassis movable on rails which define a track on which are placed tensioned wires forming the reinforcement of the concrete parts to be obtained, this chassis being supported by an upper hopper for receiving the concrete, a fixed hopper for supplying a vibrator mold, a front retaining mold, a vibrator mold provided cores for forming concrete parts and a posterior mold, also provided with cores, for refining the parts; the improvements of the invention relate to the means of traction of the machine, the attachments and the sizing of the vibrator mold and of the refiner mold, the fixing of the cores of the vibrator mold, the lateral closing of the molds, the guidance and the traction of the hopper configuration, the hopper configuration and the actuation of an anterior wire guide.
  • Patent of Invention 428477 referring to a "Process for the continuous manufacture of beams, posts, plates and the like in concrete", an installation is described consisting of rails anchored to the ground, between which are placed longitudinally a series of cables tensed which form armor on which the concrete is poured, by means of a machine provided with the relevant hoppers and lower molds, so that, moving forward, the machine forms the beams or the reinforced elements.
  • the machine described in this patent already envisages the use of three molds: a front mold, a central mold or vibrator, provided with cores or walls which define the section of the part to be obtained and a posterior mold or refiner; it also envisages the use of two hoppers: a fixed one, which pours the concrete onto the armor formed by the cables and the other mobile or overload, which feeds the previous one.
  • the cores which form and refine the concrete parts are respectively integral with the vibratory and the refining mold and, therefore, if one wishes to change the type of part to be formed, it is necessary to completely release these molds and to raise the machine, these remaining deposited on the ground, which makes it particularly difficult to center and assemble the new molds.
  • the vibrator mold has a large capacity, which causes a significant problem since when the machine At the end of the runway, throw the concrete that remains inside to prevent it from setting.
  • the refining mold presents the problem that the concrete which forms the part, on leaving the mold, spreads, which makes it difficult to obtain a certain precision in the dimensions of the parts obtained.
  • the rolling means of the machine are hidden under the bench, which makes it difficult for the operator of the crane bridge to correctly position these rolling means on the rails when the track machine is changed. , with the resulting loss of time.
  • the upper hopper is the cause of retentions in the concrete, which makes it difficult to unload, by the fact that it only moves by a single push cylinder which acts on its central area; in the fixed hopper which feeds the vibrator mold, concrete retains also occur, determined, on the one hand, by its configuration, and on the other, by the vibrations transmitted to it by the vibrator mold, which determines its turn the preliminary compaction of the concrete inside this fixed hopper.
  • the chassis rolling means are composed of wheels mounted on three axes, two front and one rear, and drive wheels which are placed at the rear end of the machine, mounted on a balance which is actuated by a hydraulic cylinder, which makes it possible to vary the height of these driving wheels, by placing them in an operational position or in a non-operational position.
  • Both the wheels of the anterior fixed axle and the drive wheels are in visible positions, which facilitates the centered positioning of the machine on the rails.
  • the lateral zones of the chassis, comprised between the rolling means have their lower end on a higher plane. as the wheels to prevent the deposition and setting of the concrete thereon, facilitating access to the closing side rubbers.
  • the central mold or vibrator has supports adjustable in height with respect to this mold, which are fixed to the chassis of the machine with the interposition of the corresponding elastic elements, intended to prevent the transmission of vibration from the mold to the chassis.
  • the machine has at its front end a folding wire guide, which is actuated automatically by means of a hydraulic cylinder, ensuring its correct positioning relative to the part to be formed by the machine; as an option, this wire guide can be adjustable both vertically and laterally.
  • Another of the improvements included in the invention consists in that the cores of the central mold are fixed thereto, with a possibility of extraction, preferably by means of screwed elements, which makes it possible to vary the profile of the parts. to form, changing only the cores and, therefore, it is not necessary to change the entire mold, as happens with known machines.
  • the invention provides that the vibrator mold has a length less than that of known machines and that the cores which are placed inside have in their front region a wedge-shaped portion, which causes that there is no no concrete retainers inside, the quantity of concrete retained by this mold when the machine reaches the end of the runway is minimal.
  • This vibrator mold is supplied, as on known machines, by a fixed mold placed between the upper hopper and this mold, with the particularity that the upper hopper moves by the action of the two hydraulic cylinders which act on the sides of this, preventing their interference in the discharge of concrete to the fixed hopper; the other particularity is that the fixed hopper has three inclined sides, which converge towards the lower zone, while the posterior side is vertical, which makes it possible to reduce the capacity of the hopper and to facilitate the descent of the concrete towards the vibrator mold .
  • the lateral closing of the molds, to prevent the concrete from coming out from below the sides is produced by rubber profiles which are pressed in an oblique direction by a metal angle integral with the manual actuation cylinders.
  • the refining mold is mounted on a projecting portion of the chassis and is fixed there by its upper zone, which makes it possible to extract this mold from the upper zone of the machine, keeping it stationary.
  • This refining mold has at its rear end a concrete relaxation box to counteract the expansion of the latter at the outlet of the machine, by obtaining greater precision in the dimensioning of the parts to be obtained; this relaxation box has on its upper surface longitudinal sections of a small thickness for the exit of the air entrained by the concrete, preventing that cannot occur defects on the profile of the part to be obtained.
  • the nuclei housed at the interior has a slight reduction in section in order to obtain this relaxation effect of the concrete.
  • the machine for the continuous production of concrete parts has a frame (1), on which is mounted by the upper part an upper hopper (2), by which the load of the concrete and which is responsible for feeding the fixed hopper (3).
  • the upper hopper (2) is actuated by two hydraulic cylinders (2a) which act on the sides of the latter preventing them from being a hindrance during the unloading of the concrete to the fixed hopper (3).
  • the fixed hopper (3) has its inclined and converging sides towards the lower zone, with the exception of the rear side (3a) which is vertical, in order to obtain a reduction in its capacity and facilitate the descent of the concrete towards its lower zone .
  • a retaining mold (4) On the chassis (1) are mounted on the lower level a retaining mold (4), a vibrator mold (5) which is fed by the hopper (3) and a refiner mold (6).
  • the retaining mold (4) placed in the anterior zone of the machine comprises a trap door (7) with vertical displacement, responsible for preventing the advancement of the concrete deposited in the vibrator mold (5) and a foldable trap door (8) ;
  • the hatch (7) is actuated by a hydraulic cylinder (7a) placed vertically in the central zone thereof and its movement is guided by the set of levers (9), while the hatch (8) is actuated by a cylinder hydraulic (8a).
  • the vibration of the mold (5) is caused by a double vibrator (10) mounted on the mold itself and actuated by a motor (11) integral with the chassis; this vibration facilitates the compaction of the concrete deposited inside the vibrator mold (5) by the hopper (3).
  • the vibrator mold (5) comprises inside the cores (12) which have a wedge-shaped portion (12a) at their anterior end; these cores (12) determine the profile of the pieces of concrete to be formed and are fixed by screws to the mold itself (5), which makes it possible to replace it with other different ones, by varying the profile of the piece to be obtained without the need to disassemble the entire vibrator mold (5).
  • the vibrator mold (5) has laterally supports (13) provided with slides on which are housed screws responsible for fixing them to the mold (5), which makes it possible to vary the height of the mold relative to the supports (13); these supports are mounted on the chassis (1) of the machine with the interposition of elastic elements (14) which prevent the transmission of vibrations from the mold (5) to the chassis (1).
  • the upper end of the vibrator mold (5) is separated from the retaining mold (4), the hopper (3) and the refining mold (6) by the corresponding elastic seals (15), (16) and (17 ) respectively.
  • the refining mold (6) internally comprises cores (18) which collaborate in the finishing of the parts to be obtained and it is mounted on the chassis (1) by means of a support (19) provided with rolling means (20); it can be placed in an advanced position of use, where it is fixed by screws, or in a more delayed position, which allows its vertical extraction from the machine.
  • the refiner mold (6) has at its rear end a relaxation box (6a) of the concrete to counteract the expansion of the latter at the outlet of the machine, by obtaining greater precision in the dimensioning of the part obtained; this relaxation box (6a) has in its upper surface sections (6b) of a small thickness for the exit of the air entrained by the concrete by preventing that defects cannot occur on the profile of the part to be obtained .
  • the cores (18) housed inside have a portion (18a) of lower section in order to obtain this relaxation effect of the concrete.
  • the lateral closing of the molds, in its lower zone, is carried out by rubber profiles (21), which are pressed in an oblique direction by metal angles (22) integral with the cylinders (23) with manual actuation.
  • a cable drive device used to move the machine in the forward direction; this device comprises a drum (24) on which is wound a drive cable (25) when the latter rotates by the action of the motor element (26), thereby causing the advancement of the machine on rails (27) fixed to the ground; the progress of the machine can be adjusted manually or automatically, by means of a control panel included therein.
  • the drive drum (24) is provided with a clutch (24a) which makes it possible to release it from the motor (26) to release the cable during the backward movement of the machine at the start of a track and of a brake (24b ) which prevents rotation of the drum (25), by inertia, when the cable is released.
  • the contact of the machine with the rails (27) is achieved by rolling elements which are composed by wheels (28) mounted on three fixed axes, two front and one rear, and by drive wheels (29). These drive wheels (29) are mounted at the rear end of the machine on the corresponding balance (30), which is actuated by a hydraulic cylinder.
  • the wheels (28) mounted on the extreme front axle and the drive wheels (29) are placed at the respective ends of the chassis (1); these wheels are in visible positions, which facilitates the centering of the machine on the rails by means of a crane bridge.
  • the driving wheels (29) are actuated by a hydraulic motor (29a) which, when entering into operation, allows the machine to move back on the rails (27) of a track.
  • the lateral zones (32) of the chassis (1) represented by dotted lines in FIG. (1) and included between the wheels (28) of the two central axes, have their lower ends on a higher plane than said wheels to prevent depositing and setting the concrete on them and facilitating the washing and cleaning of the machine.
  • All the hydraulic actuating elements included in the machine are supplied by a hydraulic group (33) mounted on the chassis (1).
  • This machine comprises at its front end a foldable wire guide (34) which is actuated by a hydraulic cylinder (35), this wire guide being adjustable vertically and laterally.

Abstract

The machine comprises a chassis (1) moving on rails defining a track on which reinforcing wires forming the concrete framework are placed. The chassis supports an upper movable concrete hopper (2), a fixed hopper (3), a front mould (4) and a vibrating mould (5). The vibrating mould has a central extraction part (12) for forming concrete pieces. A rear refining mould (6) has a corresponding core (18). The chassis runs on wheels (28) mounted on two front and one rear fixed axles. It has wheels (29), activated by a hydraulic motor, which are mounted on a corresponding balancing arm. A hydraulic cylinder (31) determines the height of the motorised wheels placing them in a lower operating position or upper non-operational position. The chassis side zones (32) have their internal end on a plane higher than the wheels to prevent the deposit of concrete and facilitate cleaning.

Description

OBJET DE L'INVENTIONOBJECT OF THE INVENTION

La présente invention se réfère, comme son titre l'indique, à des perfectionnements introduits dans des machines pour la fabrication en continu de pièces de béton, du type de celles qui comprennent un châssis déplaçable sur des rails qui définissent une piste sur laquelle sont placés des fils tendus formant l'armature des pièces en béton à obtenir, ce châssis étant supporté par une trémie supérieure pour la réception du béton, une trémie fixe d'alimentation d'un moule vibrateur, un moule antérieur de retenue, un moule vibrateur pourvu de noyaux pour le formage des pièces en béton et un moule postérieur, également pourvu de noyaux, pour l'affinage des pièces; les perfectionnements de l'invention touchent les moyens de traction de la machine, les fixations et le dimensionnement du moule vibrateur et du moule affineur, la fixation des noyaux du moule vibrateur, la fermeture latérale des moules, le guidage et la traction de la trémie supérieure, la configuration de la trémie d'alimentation et l'actionnement d'un guide-fils antérieur.The present invention refers, as its title indicates, to improvements introduced into machines for the continuous manufacture of concrete parts, of the type which include a chassis movable on rails which define a track on which are placed tensioned wires forming the reinforcement of the concrete parts to be obtained, this chassis being supported by an upper hopper for receiving the concrete, a fixed hopper for supplying a vibrator mold, a front retaining mold, a vibrator mold provided cores for forming concrete parts and a posterior mold, also provided with cores, for refining the parts; the improvements of the invention relate to the means of traction of the machine, the attachments and the sizing of the vibrator mold and of the refiner mold, the fixing of the cores of the vibrator mold, the lateral closing of the molds, the guidance and the traction of the hopper configuration, the hopper configuration and the actuation of an anterior wire guide.

ANTÉCÉDENTS DE L'INVENTIONBACKGROUND OF THE INVENTION

Dans le Brevet d'Invention 428477 se référant à un "Procédé pour la fabrication continue de poutres, poteaux, plaques et similaires en béton", on décrit une installation constituée par des rails ancrés au sol, entre lesquels sont placés longitudinalement une série de câbles tendus qui forment des armures sur lesquelles le béton est déversé, moyennant une machine pourvue des trémies pertinentes et de moules inférieurs, de telle sorte que, en avançant, la machine forme les poutres ou les éléments armés. La machine décrite dans ce brevet envisage déjà l'utilisation de trois moules: un moule avant, un moule central ou vibrateur, pourvu de noyaux ou parois qui définissent la section de la pièce à obtenir et un moule postérieur ou affineur; elle envisage également l'utilisation de deux trémies: une fixe, qui déverse le béton sur l'armure formée par les câbles et l'autre mobile ou de surcharge, qui alimente la précédente.In the Patent of Invention 428477 referring to a "Process for the continuous manufacture of beams, posts, plates and the like in concrete", an installation is described consisting of rails anchored to the ground, between which are placed longitudinally a series of cables tensed which form armor on which the concrete is poured, by means of a machine provided with the relevant hoppers and lower molds, so that, moving forward, the machine forms the beams or the reinforced elements. The machine described in this patent already envisages the use of three molds: a front mold, a central mold or vibrator, provided with cores or walls which define the section of the part to be obtained and a posterior mold or refiner; it also envisages the use of two hoppers: a fixed one, which pours the concrete onto the armor formed by the cables and the other mobile or overload, which feeds the previous one.

Cette machine présente une série d'inconvénients, qui compliquent considérablement son usage et qui sont mentionnés ci-après:This machine has a series of drawbacks, which considerably complicate its use and which are mentioned below:

Une fois les pièces formées sur une piste, il est nécessaire d'élever la totalité de la machine moyennant un pont de grue afin de la positionner sur le début d'une nouvelle piste; cela est dû au fait que la machine présente un mécanisme de traction par câble qui permet seulement son déplacement dans la direction d'avancement, ce qui détermine que les pièces obtenues peuvent avoir une longueur maximale égale au parcours du pont de grue.Once the parts are formed on a track, it is necessary to raise the entire machine by means of a crane bridge in order to position it on the start of a new track; this is due to the fact that the machine has a cable traction mechanism which only allows its movement in the direction of advance, which determines that the parts obtained can have a maximum length equal to the path of the crane bridge.

Les noyaux qui forment et affinent les pièces de béton sont respectivement solidaires du vibratoire et du moule affineur et, par conséquent, si l'on souhaite changer le type de pièce à former, il est nécessaire de libérer totalement ces moules et d'élever la machine, ceux-ci restant déposés au sol, ce qui rend particulièrement difficile le centrage et montage des nouveaux moules.The cores which form and refine the concrete parts are respectively integral with the vibratory and the refining mold and, therefore, if one wishes to change the type of part to be formed, it is necessary to completely release these molds and to raise the machine, these remaining deposited on the ground, which makes it particularly difficult to center and assemble the new molds.

Le moule vibrateur a une grande capacité, ce qui cause un problème important étant donné que, lorsque la machine atteint la fin de la piste, il faut jeter le béton qui reste à l'intérieur pour éviter qu'il ne prenne.The vibrator mold has a large capacity, which causes a significant problem since when the machine At the end of the runway, throw the concrete that remains inside to prevent it from setting.

Le moule affineur présente le problème que le béton qui forme la pièce, en sortant du moule, se répand, ce qui rend difficile d'obtenir une certaine précision dans les dimensions des pièces obtenues.The refining mold presents the problem that the concrete which forms the part, on leaving the mold, spreads, which makes it difficult to obtain a certain precision in the dimensions of the parts obtained.

Les moyens de roulement de la machine sont cachés sous le banc ce qui fait que, pour l'opérateur du pont de grue, il est complexe de réaliser le positionnement correct de ces moyens de roulement sur les rails lorsqu'on change la machine de piste, avec la perte de temps qui en résulte.The rolling means of the machine are hidden under the bench, which makes it difficult for the operator of the crane bridge to correctly position these rolling means on the rails when the track machine is changed. , with the resulting loss of time.

Un autre problème présenté par les machines connues est que les parties latérales de celles-ci sont placées très près du sol, ce qui provoque l'accumulation de béton sur celles-ci; cela implique que le temps de nettoyage de la machine, généralement au jet d'eau à pression, soit long étant donné que, la machine travaillant avec des bétons qui contiennent un pourcentage important de ciment, celui-ci pourrait prendre sur les côtés de la machine, ce qui serait la cause d'un fonctionnement défectueux de celle-ci.Another problem presented by known machines is that the lateral parts of these are placed very close to the ground, which causes the accumulation of concrete on them; this implies that the cleaning time of the machine, generally with a pressure water jet, is long since, the machine working with concretes which contain a significant percentage of cement, this could take on the sides of the machine, which would be the cause of a faulty operation thereof.

Dans ce type de machines connues, la trémie supérieure est la cause de retenues dans le béton, ce qui rend difficile son déchargement, par le fait que celle-ci ne se déplace que par un unique cylindre de poussée qui agit sur sa zone centrale; dans la trémie fixe qui alimente le moule vibrateur, des retenues de béton se produisent également, déterminées, d'une part, par sa configuration, et de l'autre, par les vibrations que lui transmet le moule vibrateur, ce qui détermine à son tour le compactage préalable du béton à l'intérieur de cette trémie fixe.In this type of known machine, the upper hopper is the cause of retentions in the concrete, which makes it difficult to unload, by the fact that it only moves by a single push cylinder which acts on its central area; in the fixed hopper which feeds the vibrator mold, concrete retains also occur, determined, on the one hand, by its configuration, and on the other, by the vibrations transmitted to it by the vibrator mold, which determines its turn the preliminary compaction of the concrete inside this fixed hopper.

DESCRIPTION DE L'INVENTIONDESCRIPTION OF THE INVENTION

Pour résoudre ces problèmes, on a eu l'idée des perfectionnements objet de la présente invention qui supposent des avantages fonctionnels importants durant l'utilisation de la machine en question.To solve these problems, we had the idea of the improvements which are the subject of the present invention which presupposes significant functional advantages during the use of the machine in question.

Selon l'invention, les moyens de roulement du châssis sont composés par des roues montées sur trois axes, deux antérieurs et un postérieur, et des roues motrices qui sont placées à l'extrémité postérieure de la machine, montées sur un balancier qui est actionné par un cylindre hydraulique, ce qui permet de varier la hauteur de ces roues motrices, en les disposant dans une position opérationnelle ou dans une position non opérationnelle. Aussi bien les roues de l'axe fixe antérieur que les roues motrices se trouvent dans des positions visibles, ce qui facilite le positionnement centré de la machine sur les rails.According to the invention, the chassis rolling means are composed of wheels mounted on three axes, two front and one rear, and drive wheels which are placed at the rear end of the machine, mounted on a balance which is actuated by a hydraulic cylinder, which makes it possible to vary the height of these driving wheels, by placing them in an operational position or in a non-operational position. Both the wheels of the anterior fixed axle and the drive wheels are in visible positions, which facilitates the centered positioning of the machine on the rails.

L'inclusion dans la machine de ces roues motrices détermine que la machine peut avancer sur les rails moyennant un dispositif de traction par câble et reculer sur les rails d'une nouvelle piste moyennant la motorisation hydraulique de ces roues; cette particularité suppose un avantage important, attendu que le pont de grue ne doit être utilisé que pour passer la machine de la fin de l'une des pistes à la fin d'une nouvelle piste, la machine reculant au début de celle-ci par se propres moyens moteurs, ce qui permet que la piste et, par conséquent, les pièces à former, aient une longueur supérieure au parcours du pont de grue.The inclusion in the machine of these driving wheels determines that the machine can advance on the rails by means of a cable traction device and retreat on the rails of a new track by means of the hydraulic motorization of these wheels; this peculiarity implies an important advantage, since the crane bridge should only be used to pass the machine from the end of one of the tracks to the end of a new track, the machine backing up at the start of it by se own motor means, which allows that the track and, therefore, the parts to be formed, have a length greater than the course of the crane bridge.

Conformément à l'invention, les zones latérales du châssis, comprises entres les moyens de roulement, présentent leur extrémité inférieure sur un plan plus élevé que les roues pour empêcher le dépôt et la prise du béton sur celles-ci, en facilitant l'accès à des caoutchoucs latéraux de fermeture.According to the invention, the lateral zones of the chassis, comprised between the rolling means, have their lower end on a higher plane. as the wheels to prevent the deposition and setting of the concrete thereon, facilitating access to the closing side rubbers.

Le moule central ou vibrateur présente des supports réglables en hauteur par rapport à ce moule, qui sont fixés sur le châssis de la machine avec interposition des éléments élastiques correspondants, destinés à empêcher la transmission de vibration du moule au châssis.The central mold or vibrator has supports adjustable in height with respect to this mold, which are fixed to the chassis of the machine with the interposition of the corresponding elastic elements, intended to prevent the transmission of vibration from the mold to the chassis.

Ces perfectionnements envisagent que la machine présente à son extrémité antérieure un guide-fils rabattable, qui est actionné automatiquement au moyen d'un cylindre hydraulique, en assurant son positionnement correct par rapport à la pièce à former par la machine; en option, ce guide-fils peut être réglable aussi bien verticalement que latéralement.These improvements envisage that the machine has at its front end a folding wire guide, which is actuated automatically by means of a hydraulic cylinder, ensuring its correct positioning relative to the part to be formed by the machine; as an option, this wire guide can be adjustable both vertically and laterally.

Un autre des perfectionnements inclus dans l'invention consiste en ce que les noyaux du moule central sont fixés à celui-ci, avec une possibilité d'extraction, de préférence au moyen d'éléments vissés, ce qui permet de varier le profil des pièces à former, en changeant seulement les noyaux et, par conséquent, il n'est pas nécessaire de changer le moule complet, comme cela se passe avec les machines connues.Another of the improvements included in the invention consists in that the cores of the central mold are fixed thereto, with a possibility of extraction, preferably by means of screwed elements, which makes it possible to vary the profile of the parts. to form, changing only the cores and, therefore, it is not necessary to change the entire mold, as happens with known machines.

L'invention prévoit que le moule vibrateur présente un longueur inférieure à celle des machines connues et que les noyaux qui sont placés à l'intérieur présentent dans leur zone antérieure une portion en forme de coin, ce qui provoque qu'il n'y ait pas de retenues de béton à l'intérieur, la quantité de béton retenue par ce moule lorsque la machine atteint la fin de la piste étant minimale.The invention provides that the vibrator mold has a length less than that of known machines and that the cores which are placed inside have in their front region a wedge-shaped portion, which causes that there is no no concrete retainers inside, the quantity of concrete retained by this mold when the machine reaches the end of the runway is minimal.

Ce moule vibrateur est alimenté, de même que sur les machines connues, par un moule fixe placé entre la trémie supérieure et ce moule, avec la particularité que la trémie supérieure se déplace par l'action des deux cylindres hydrauliques qui agissent sur les côtés de celle-ci, en empêchant leur interférence dans la décharge du béton vers la trémie fixe; l'autre particularité est que la trémie fixe présente trois côtés inclinés, qui convergent vers la zone inférieure, alors que le côté postérieur est vertical, ce qui permet de réduire la capacité de la trémie et de faciliter la descente du béton vers le moule vibrateur.This vibrator mold is supplied, as on known machines, by a fixed mold placed between the upper hopper and this mold, with the particularity that the upper hopper moves by the action of the two hydraulic cylinders which act on the sides of this, preventing their interference in the discharge of concrete to the fixed hopper; the other particularity is that the fixed hopper has three inclined sides, which converge towards the lower zone, while the posterior side is vertical, which makes it possible to reduce the capacity of the hopper and to facilitate the descent of the concrete towards the vibrator mold .

Selon l'invention, la fermeture latérale des moules, pour empêcher la sortie du béton par dessous les côtés, est réalisée par des profils en caoutchouc qui sont pressés en direction oblique par un angle métallique solidaire des cylindres d'actionnement manuel.According to the invention, the lateral closing of the molds, to prevent the concrete from coming out from below the sides, is produced by rubber profiles which are pressed in an oblique direction by a metal angle integral with the manual actuation cylinders.

Le moule affineur est montée sur une portion saillante du châssis et il y est fixé par sa zone supérieure, ce qui permet de réaliser l'extraction de ce moule par la zone supérieure de la machine, en maintenant celle-ci immobile.The refining mold is mounted on a projecting portion of the chassis and is fixed there by its upper zone, which makes it possible to extract this mold from the upper zone of the machine, keeping it stationary.

Ce moule affineur présente à son extrémité postérieure une boîte de relaxation du béton pour contrecarrer l'expansion de celui-ci à la sortie de la machine, en obtenant une plus grande précision dans le dimensionnement des pièces à obtenir; cette boîte de relaxation présente sur sa surface supérieure des coupes longitudinales d'une petite épaisseur pour la sortie de l'air entraîné par le béton, en empêchant que ne puissent se produire des défauts sur le profil de la pièce à obtenir. Sur le tronçon correspondant à la boîte de relaxation, les noyaux logés à l'intérieur présentent une légère réduction de section dans le but d'obtenir cet effet de relaxation du béton.This refining mold has at its rear end a concrete relaxation box to counteract the expansion of the latter at the outlet of the machine, by obtaining greater precision in the dimensioning of the parts to be obtained; this relaxation box has on its upper surface longitudinal sections of a small thickness for the exit of the air entrained by the concrete, preventing that cannot occur defects on the profile of the part to be obtained. On the section corresponding to the relaxation box, the nuclei housed at the interior has a slight reduction in section in order to obtain this relaxation effect of the concrete.

DESCRIPTION DES DESSINSDESCRIPTION OF THE DRAWINGS

Pour compléter la description que l'on est en train de réaliser et afin d'aider à mieux comprendre les caractéristiques de l'invention, nous remettons ci-joint, avec le présent mémoire descriptif et comme partie intégrale de celui-ci, un jeu de dessins où l'on a représenté, avec un caractère illustratif mais non limitatif, ce qui suit:

  • La figure 1 montre une vue en élévation de la machine, partiellement sectionnée.
  • La figure 2 montre une vue postérieure de la machine, sectionnée verticalement.
  • La figure 3 montre un détail frontal du tambour d'entraînement, sur lequel on observe le frein et l'embrayage de celui-ci.
  • La figure 4 montre un détail du moule affineur avec les noyaux correspondants, sur lequel on peut remarquer les rainures supérieures pour la sortie d'air et la boîte de relaxation.
  • La figure 5 montre un détail des roues motrices et des moyens de support et d'actionnement de celles-ci.
To complete the description that we are carrying out and in order to help to better understand the characteristics of the invention, we hereby submit, with this descriptive memory and as an integral part thereof, a set of drawings in which there is shown, with an illustrative but not limiting character, the following:
  • Figure 1 shows an elevational view of the machine, partially sectioned.
  • Figure 2 shows a rear view of the machine, sectioned vertically.
  • Figure 3 shows a front detail of the drive drum, on which we observe the brake and the clutch thereof.
  • Figure 4 shows a detail of the refining mold with the corresponding cores, on which we can notice the upper grooves for the air outlet and the relaxation box.
  • FIG. 5 shows a detail of the drive wheels and of the support and actuation means thereof.

RÉALISATION PRÉFERENTIELLE DE L'INVENTIONPREFERENTIAL IMPLEMENTATION OF THE INVENTION

Comme on peut le remarquer sur les figures en référence, la machine pour la fabrication en continu de pièces de béton, représentée à titre d'exemple, présente un châssis (1), sur lequel est monté par la partie supérieure une trémie supérieure (2), par laquelle est réalisée la charge du béton et qui est chargée d'alimenter la trémie fixe (3).As can be seen in the figures in reference, the machine for the continuous production of concrete parts, shown by way of example, has a frame (1), on which is mounted by the upper part an upper hopper (2), by which the load of the concrete and which is responsible for feeding the fixed hopper (3).

La trémie supérieure (2) est actionnée par deux cylindres hydrauliques (2a) qui agissent sur les côtés de celle-ci en empêchant qu'ils puissent constituer une gêne durant le déchargement du béton vers la trémie fixe (3).The upper hopper (2) is actuated by two hydraulic cylinders (2a) which act on the sides of the latter preventing them from being a hindrance during the unloading of the concrete to the fixed hopper (3).

La trémie fixe (3) présente ses côtés inclinés et convergents vers la zone inférieure, à l'exception du côté postérieur (3a) qui est vertical, afin d'obtenir une réduction de sa capacité et faciliter la descente du béton vers sa zone inférieure.The fixed hopper (3) has its inclined and converging sides towards the lower zone, with the exception of the rear side (3a) which is vertical, in order to obtain a reduction in its capacity and facilitate the descent of the concrete towards its lower zone .

Sur le châssis (1) sont montés au niveau inférieur un moule de retenue (4), un moule vibrateur (5) qui est alimenté par la trémie (3) et un moule affineur (6).On the chassis (1) are mounted on the lower level a retaining mold (4), a vibrator mold (5) which is fed by the hopper (3) and a refiner mold (6).

Le moule de retenue (4), placé dans la zone antérieure de la machine comprend une trappe (7) à déplacement vertical, chargée d'empêcher l'avancement du béton déposé dans le moule vibrateur (5) et une trappe rabattable (8); la trappe (7) est actionnée par un cylindre hydraulique (7a) placé verticalement dans la zone centrale de celle-ci est son déplacement est guidé par le jeu de leviers (9), alors que la trappe (8) est actionnée par un cylindre hydraulique (8a).The retaining mold (4), placed in the anterior zone of the machine comprises a trap door (7) with vertical displacement, responsible for preventing the advancement of the concrete deposited in the vibrator mold (5) and a foldable trap door (8) ; the hatch (7) is actuated by a hydraulic cylinder (7a) placed vertically in the central zone thereof and its movement is guided by the set of levers (9), while the hatch (8) is actuated by a cylinder hydraulic (8a).

La vibration du moule (5) est causée par un double vibrateur (10) monté sur le moule lui-même et actionné par un moteur (11) solidaire du châssis; cette vibration facilite le compactage du béton déposé à l'intérieur du moule vibrateur (5) par la trémie (3).The vibration of the mold (5) is caused by a double vibrator (10) mounted on the mold itself and actuated by a motor (11) integral with the chassis; this vibration facilitates the compaction of the concrete deposited inside the vibrator mold (5) by the hopper (3).

Le moule vibrateur (5) comprend à l'intérieur des noyaux (12) qui présentent à leur extrémité antérieure une portion (12a) en forme de coin; ces noyaux (12) déterminent le profil des pièces de béton à former et sont fixés par des vis au moule lui-même (5), ce qui permet de le remplacer par d'autres différents, en variant le profil de la pièce à obtenir sans nécessité de démonter la totalité du moule vibrateur (5).The vibrator mold (5) comprises inside the cores (12) which have a wedge-shaped portion (12a) at their anterior end; these cores (12) determine the profile of the pieces of concrete to be formed and are fixed by screws to the mold itself (5), which makes it possible to replace it with other different ones, by varying the profile of the piece to be obtained without the need to disassemble the entire vibrator mold (5).

Le moule vibrateur (5) présente latéralement des supports (13) pourvus de coulisseaux sur lesquels sont logées des vis chargées de les fixer au moule (5), ce qui permet de varier la hauteur du moule par rapport aux supports (13); ces supports sont montés sur le châssis (1) de la machine avec interposition des éléments élastiques (14) qui empêchent la transmission de vibrations du moule (5) au châssis (1).The vibrator mold (5) has laterally supports (13) provided with slides on which are housed screws responsible for fixing them to the mold (5), which makes it possible to vary the height of the mold relative to the supports (13); these supports are mounted on the chassis (1) of the machine with the interposition of elastic elements (14) which prevent the transmission of vibrations from the mold (5) to the chassis (1).

L'extrémité supérieure du moule vibrateur (5) est séparée du moule de retenue (4), de la trémie (3) et du moule d'affinage (6) par les joints élastiques correspondants (15), (16) et (17) respectivement.The upper end of the vibrator mold (5) is separated from the retaining mold (4), the hopper (3) and the refining mold (6) by the corresponding elastic seals (15), (16) and (17 ) respectively.

Le moule affineur (6) comprend intérieurement des noyaux (18) qui collaborent à la finition des pièces à obtenir et il est monté sur le châssis (1) moyennant un support (19) pourvu de moyens de roulement (20); il peut être placé dans une position d'usage avancée, où il est fixé par des vis, ou bien dans une position plus retardée, qui permet son extraction verticale de la machine.The refining mold (6) internally comprises cores (18) which collaborate in the finishing of the parts to be obtained and it is mounted on the chassis (1) by means of a support (19) provided with rolling means (20); it can be placed in an advanced position of use, where it is fixed by screws, or in a more delayed position, which allows its vertical extraction from the machine.

Le moule affineur (6) présente à son extrémité postérieure une boîte de relaxation (6a) du béton pour contrecarrer l'expansion de celui-ci à la sortie de la machine, en obtenant une plus grande précision dans le dimensionnement de la pièce obtenue; cette boîte de relaxation (6a) présente dans sa surface supérieure des coupes (6b) d'une petite épaisseur pour la sortie de l'air entraîné par le béton en empêchant que des défauts ne puissent se produire sur le profil de la pièce à obtenir. Sur le tronçon correspondant à la boîte de relaxation, les noyaux (18) logés à l'intérieur présentent une portion (18a) de section inférieure afin d'obtenir cet effet de relaxation du béton.The refiner mold (6) has at its rear end a relaxation box (6a) of the concrete to counteract the expansion of the latter at the outlet of the machine, by obtaining greater precision in the dimensioning of the part obtained; this relaxation box (6a) has in its upper surface sections (6b) of a small thickness for the exit of the air entrained by the concrete by preventing that defects cannot occur on the profile of the part to be obtained . On the section corresponding to the relaxation box, the cores (18) housed inside have a portion (18a) of lower section in order to obtain this relaxation effect of the concrete.

La fermeture latérale des moules, dans sa zone inférieure, est réalisée par des profils en caoutchouc (21), qui sont pressés en direction oblique par des angles métalliques (22) solidaires des cylindres (23) à actionnement manuel.The lateral closing of the molds, in its lower zone, is carried out by rubber profiles (21), which are pressed in an oblique direction by metal angles (22) integral with the cylinders (23) with manual actuation.

Sur le châssis (1) est monté un dispositif d'entraînement par câble, employé pour déplacer la machine dans le sens de l'avancement; ce dispositif comprend un tambour (24) sur lequel est enroulé un câble d'entraînement (25) lorsque celui-ci tourne par l'action de l'élément moteur (26), en provoquant ainsi l'avancement de la machine sur des rails (27) fixés au sol; l'avancement de la machine peut être réglé de façon manuelle ou automatique, au moyen d'un panneau de commandes inclus dans celle-ci.On the chassis (1) is mounted a cable drive device, used to move the machine in the forward direction; this device comprises a drum (24) on which is wound a drive cable (25) when the latter rotates by the action of the motor element (26), thereby causing the advancement of the machine on rails (27) fixed to the ground; the progress of the machine can be adjusted manually or automatically, by means of a control panel included therein.

Le tambour d'entraînement (24) est pourvu d'un embrayage (24a) qui permet de le libérer du moteur (26) pour lâcher le câble pendant le recul de la machine au début d'une piste et d'un frein (24b) qui empêche la rotation du tambour (25), par inertie, lorsque le câble est lâché.The drive drum (24) is provided with a clutch (24a) which makes it possible to release it from the motor (26) to release the cable during the backward movement of the machine at the start of a track and of a brake (24b ) which prevents rotation of the drum (25), by inertia, when the cable is released.

Le contact de la machine avec les rails (27) est réalisé par des éléments de roulement qui sont composés par des roues (28) montées sur trois axes fixes, deux antérieurs et un autre postérieur, et par des roues motrices (29). Ces roues motrices (29) sont montées à l'extrémité postérieur de la machine sur le balancier correspondant (30), qui est actionné par un cylindre hydraulique. Les roues (28) montées sur l'axe antérieur extrême et les roues motrices (29) sont placées aux extrémités respectives du châssis (1); ces roues sont en positions visibles, ce qui facilite le centrage de la machine sur les rails moyennant un pont de grue.The contact of the machine with the rails (27) is achieved by rolling elements which are composed by wheels (28) mounted on three fixed axes, two front and one rear, and by drive wheels (29). These drive wheels (29) are mounted at the rear end of the machine on the corresponding balance (30), which is actuated by a hydraulic cylinder. The wheels (28) mounted on the extreme front axle and the drive wheels (29) are placed at the respective ends of the chassis (1); these wheels are in visible positions, which facilitates the centering of the machine on the rails by means of a crane bridge.

Les roues motrices (29) sont actionnées par un moteur hydraulique (29a) qui, en entrant en fonctionnement, permet le recul de la machine sur les rails (27) d'une piste.The driving wheels (29) are actuated by a hydraulic motor (29a) which, when entering into operation, allows the machine to move back on the rails (27) of a track.

Les zones latérales (32) du châssis (1), représentées par des pointillés sur la figure (1) et comprises entre les roues (28) des deux axes centraux, présentent leur extrémité inférieure sur un plan plus élevé que lesdites roues pour empêcher le dépôt et la prise du béton sur celles-ci et faciliter l'opération de lavage et de nettoyage de la machine.The lateral zones (32) of the chassis (1), represented by dotted lines in FIG. (1) and included between the wheels (28) of the two central axes, have their lower ends on a higher plane than said wheels to prevent depositing and setting the concrete on them and facilitating the washing and cleaning of the machine.

Tous les éléments d'actionnement hydraulique inclus dans la machine, sont alimentés par un groupe hydraulique (33) monté sur le châssis (1).All the hydraulic actuating elements included in the machine are supplied by a hydraulic group (33) mounted on the chassis (1).

Cette machine comprend à son extrémité antérieure un guide-fils rabattable (34) qui est actionné par un cylindre hydraulique (35), ce guide-fils étant réglable verticalement et latéralement.This machine comprises at its front end a foldable wire guide (34) which is actuated by a hydraulic cylinder (35), this wire guide being adjustable vertically and laterally.

Il n'a pas été considéré nécessaire de faire une description plus étendue afin que tout expert en la matière comprenne la portée de l'invention et les avantages qui en dérivent.It was not considered necessary to make a more detailed description so that any expert in the subject would understand the scope of the invention and the advantages derived therefrom.

Les termes dans lequel ce mémoire a été rédigé doivent toujours être pris dans le sens large et non limitatif.The terms in which this memoir was written must always be taken in a broad and non-limiting sense.

Les matériaux, forme, taille et disposition des éléments seront susceptibles de variation pour autant que cela ne suppose point une altération des caractéristiques essentielles de l'invention, qui sont revendiquées ci-après.The materials, shape, size and arrangement of the elements will be subject to variation provided that this does not imply an alteration of the essential characteristics of the invention, which are claimed below.

Claims (15)

Perfectionnements introduits dans les machines pour la fabrication en continu de pièces de béton, du type de celles qui comprennent un châssis (1), déplaçable sur des rails (27) qui définissent une piste sur laquelle sont placés des fils tendus ou armés qui forment l'armature des pièces de béton à obtenir, ledit châssis (1) supportant une trémie supérieure mobile (2) pour la réception et postérieure alimentation de béton, une trémie fixe (3) d'alimentation d'un moule vibrateur, un moule antérieur (4) de retenue, un moule vibrateur (5) pourvu de noyaux (12) pour le formage des pièces de béton et un moule postérieur ou affineur (6), pourvu également de noyaux (18), pour l'affinage des pièces; ils se caractérisent par le fait que les moyens de roulement du châssis sont composés par des roues (28) montées sur trois axes fixes, deux antérieurs et un postérieur, et par des roues motrices (29) qui sont actionnées par un moteur hydraulique (29a) et qui sont montées sur le balancier rabattable correspondant (30), placé à l'extrémité postérieure de la machine; sur le balancier (30) intervient un cylindre hydraulique (31) qui détermine la hauteur des roues motrices (29), en les plaçant dans une position inférieure opérationnelle ou dans une position supérieure non opérationnelle.Improvements introduced into machines for the continuous manufacture of concrete parts, of the type which include a chassis (1), movable on rails (27) which define a track on which are placed taut or reinforced wires which form the reinforcement of the concrete parts to be obtained, said chassis (1) supporting a movable upper hopper (2) for receiving and posterior feeding of concrete, a fixed hopper (3) for feeding a vibrator mold, an anterior mold ( 4) retaining, a vibrator mold (5) provided with cores (12) for forming concrete pieces and a posterior or refiner mold (6), also provided with cores (18), for refining the pieces; they are characterized by the fact that the chassis rolling means are composed by wheels (28) mounted on three fixed axes, two front and one rear, and by driving wheels (29) which are actuated by a hydraulic motor (29a ) and which are mounted on the corresponding folding balance (30), placed at the rear end of the machine; on the balance (30) there is a hydraulic cylinder (31) which determines the height of the drive wheels (29), by placing them in a lower operational position or in a higher non-operational position. Perfectionnements, selon les revendications précédentes, caractérisés par le fait que les zones latérales (32) du châssis (1), comprises entre les moyens de roulement, présentent leur extrémité inférieure sur un plan plus élevé que les roues (29) pour empêcher le dépôt et la prise de béton sur celles-ci et faciliter les opérations de nettoyage.Improvements according to the preceding claims, characterized in that the lateral zones (32) of the chassis (1), included between the rolling means, have their lower end on a plane higher than the wheels (29) to prevent deposition and setting concrete on them and facilitating cleaning operations. Perfectionnements, selon les revendications précédentes, caractérisés par le fait que la trémie supérieure (2) est actionnée par deux cylindres hydrauliques (2a) qui agissent sur les côtés de celle-ci.Improvements according to the preceding claims, characterized in that the hopper upper (2) is actuated by two hydraulic cylinders (2a) which act on the sides thereof. Perfectionnements, selon les revendications précédentes, caractérisées par le fait que la trémie fixe (3) présente au moins un côté (3a) vertical.Improvements according to the preceding claims, characterized in that the fixed hopper (3) has at least one vertical side (3a). Perfectionnements, selon les revendications précédentes, caractérisés par le fait que le moule de retenue (4) comprend une trappe de retenue (7) qui est actionnée par un cylindre hydraulique (7a) qui agit sur celle-ci en direction verticale, cette trappe étant guidée par des leviers (9).Improvements according to the preceding claims, characterized in that the retaining mold (4) comprises a retaining flap (7) which is actuated by a hydraulic cylinder (7a) which acts thereon in a vertical direction, this flap being guided by levers (9). Perfectionnements, selon les revendications précédentes, caractérisés par le fait que le moule de retenue comprend une trappe rabattable (8) qui est actionnée par un cylindre hydraulique (8a).Improvements according to the preceding claims, characterized in that the retaining mold comprises a folding hatch (8) which is actuated by a hydraulic cylinder (8a). Perfectionnements, selon les revendications précédentes, caractérisés par le fait que la machine présente à son extrémité antérieure un guide-fils rabattable (34) qui est actionné automatiquement au moyen d'un cylindre hydraulique (35).Improvements according to the preceding claims, characterized in that the machine has at its front end a foldable thread guide (34) which is actuated automatically by means of a hydraulic cylinder (35). Perfectionnements, selon les revendications précédentes, caractérisés par le fait que les noyaux (12) du moule vibrateur (5) sont fixés à celui-ci avec une possibilité d'extraction, de préférence au moyen d'éléments vissés.Improvements according to the preceding claims, characterized in that the cores (12) of the vibrator mold (5) are fixed thereto with the possibility of extraction, preferably by means of screwed elements. Perfectionnements, selon les revendications précédentes, caractérisés par le fait que les noyaux (12) du moule vibrateur (5) présentent à leur extrémité antérieure une portion (12a) en forme de coin.Improvements according to the preceding claims, characterized in that the cores (12) of the vibrator mold (5) have a wedge-shaped portion (12a) at their anterior end. Perfectionnements, selon les revendications précédentes, caractérisés par le fait que la fermeture latérale des moules (4, 5 et 6) pour empêcher la sortie de béton sous les côtés, est réalisée au moyen de profils en caoutchouc (21) qui sont pressés en direction oblique par un angle métallique (22) solidaire des cylindres (23) à actionnement manuel.Improvements according to the preceding claims, characterized in that the lateral closing of the molds (4, 5 and 6) to prevent the exit of concrete under the sides, is carried out by means of rubber profiles (21) which are pressed in the direction oblique by a metal angle (22) integral with the cylinders (23) with manual actuation. Perfectionnements, selon les revendications précédentes, caractérisés par le fait que le moule affineur (6) est monté sur le châssis (1) au moyen d'un support (19) pourvu de moyens de roulement (20), qui permettent de le placer dans une position avancée d'utilisation, ou bien dans une position plus reculée d'extraction.Improvements according to the preceding claims, characterized in that the refining mold (6) is mounted on the chassis (1) by means of a support (19) provided with rolling means (20), which allow it to be placed in an advanced position of use, or in a more remote position of extraction. Perfectionnements, selon les revendications précédentes, caractérisés par le fait que le moule affineur (6) forme dans son tronçon final une boîte de relaxation (6a) du béton, qui est pourvu dans sa partie supérieure de coupes (5b) pour la sortie d'air contenue dans le béton.Improvements according to the preceding claims, characterized in that the refiner mold (6) forms in its final section a relaxation box (6a) of the concrete, which is provided in its upper part with cuts (5b) for the outlet of air contained in concrete. Perfectionnements, selon les revendications précédentes, caractérisés par le fait que les noyaux (18) du moule affineur (6) présentent, sur le tronçon correspondant à la boîte de relaxation (6a), une portion (18a) de section inférieure.Improvements according to the preceding claims, characterized in that the cores (18) of the refiner mold (6) have, on the section corresponding to the relaxation box (6a), a portion (18a) of lower section. Perfectionnements, selon les revendications précédentes, caractérisés par le fait que le moule vibrateur (5) présente latéralement des supports (13), pourvus de coulisseaux verticaux par lesquels passent des vis qui les fixent à ce moule (5), avec le positionnement, entre les supports (13) et le châssis (1) de la machine, d'éléments élastiques (14) destinés à empêcher la transmission de vibrations du moule (5) au châssis (1).Improvements according to the preceding claims, characterized in that the vibrator mold (5) has laterally supports (13), provided with vertical slides through which pass screws which fix them to this mold (5), with the positioning, between the supports (13) and the chassis (1) of the machine, of elastic elements (14) intended to prevent the transmission of vibrations from the mold (5) to the chassis (1). Perfectionnements, selon les revendications précédentes, caractérisés par le fait que la machine comprend un dispositif d'entraînement par câble composé par un tambour (24) monté sur le châssis (1) et actionné par un moteur d'entraînement (26), ce tambour (21) étant pourvu d'un embrayage (24a) et d'un frein (24b).Improvements according to the preceding claims, characterized in that the machine comprises a cable drive device composed of a drum (24) mounted on the chassis (1) and actuated by a drive motor (26), this drum (21) being provided with a clutch (24a) and a brake (24b).
EP97500074A 1996-04-25 1997-04-24 Improvements introduced in devices for the continuous manufacturing of concrete elements Withdrawn EP0803335A1 (en)

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EP1491306A2 (en) * 2003-06-04 2004-12-29 Prensoland, S.A. Machine for the continuous manufacturing of reinforced concrete or prestressed concrete products
EP1491306A3 (en) * 2003-06-04 2005-03-23 Prensoland, S.A. Machine for the continuous manufacturing of reinforced concrete or prestressed concrete products
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EP1952960A2 (en) 2007-01-31 2008-08-06 Prensoland, S.A. Improvements made to machines for continuous production of pre-stressed or reinforced concrete pieces
ES2325822A1 (en) * 2007-01-31 2009-09-18 Prensoland, S.A. Improvements made to machines for continuous production of pre-stressed or reinforced concrete pieces
ES2335465A1 (en) * 2007-01-31 2010-03-26 Prensoland, S.A. Improvements made to machines for continuous production of pre-stressed or reinforced concrete pieces
EP1952960A3 (en) * 2007-01-31 2010-10-06 Prensoland, S.A. Improvements made to machines for continuous production of pre-stressed or reinforced concrete pieces
ES2357383A1 (en) * 2009-01-27 2011-04-26 Azcon Ay Pantoja, Sl Machine for the continuous manufacture of armed or pretensed concrete products. (Machine-translation by Google Translate, not legally binding)
RU2516038C2 (en) * 2009-01-27 2014-05-20 Аскона И Пантоха, С.Л. Machine for continuous production of items from reinforced or prestressed concrete
CN102328341A (en) * 2010-07-12 2012-01-25 杨振峰 Plate-feeding and hole-drawing one-time forming machine
CN104760128A (en) * 2014-01-05 2015-07-08 平邑开元新型建材有限公司 Feeder of spoke type gypsum block casting former
CN104760128B (en) * 2014-01-05 2018-03-27 平邑开元新型建材有限公司 The dispenser of radial pouring gypsum block forming machine
CN103934883A (en) * 2014-05-03 2014-07-23 胡齐放 Brick machine for producing baking-free bricks through mineral tailings
WO2017129831A1 (en) * 2016-01-27 2017-08-03 Prensoland, S.A. Machine for the continuous production of prestressed concrete slabs
ES2699083R1 (en) * 2016-01-27 2019-03-15 Prensoland Sa Continuous production machine of pre-stressed concrete plates and component of said machine
CN107599142A (en) * 2017-09-06 2018-01-19 安徽同步自动化科技有限公司 A kind of automatic pouring formation machine

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PT101883B (en) 1998-12-31
PT101883A (en) 1997-11-28

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