WO1998017559A1 - Device for stacking and de-hacking part supports - Google Patents

Device for stacking and de-hacking part supports Download PDF

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Publication number
WO1998017559A1
WO1998017559A1 PCT/FR1997/001867 FR9701867W WO9817559A1 WO 1998017559 A1 WO1998017559 A1 WO 1998017559A1 FR 9701867 W FR9701867 W FR 9701867W WO 9817559 A1 WO9817559 A1 WO 9817559A1
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WO
WIPO (PCT)
Prior art keywords
supports
rungs
rung
stacking
uprights
Prior art date
Application number
PCT/FR1997/001867
Other languages
French (fr)
Inventor
Jean-Pierre Ferragut
Original Assignee
Imetal Services-Materiaux
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Imetal Services-Materiaux filed Critical Imetal Services-Materiaux
Publication of WO1998017559A1 publication Critical patent/WO1998017559A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G60/00—Simultaneously or alternatively stacking and de-stacking of articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G49/00—Conveying systems characterised by their application for specified purposes not otherwise provided for
    • B65G49/05—Conveying systems characterised by their application for specified purposes not otherwise provided for for fragile or damageable materials or articles
    • B65G49/08—Conveying systems characterised by their application for specified purposes not otherwise provided for for fragile or damageable materials or articles for ceramic mouldings
    • B65G49/085—Conveying systems characterised by their application for specified purposes not otherwise provided for for fragile or damageable materials or articles for ceramic mouldings for loading or unloading racks or similar frames; loading racks therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G57/00—Stacking of articles
    • B65G57/02—Stacking of articles by adding to the top of the stack
    • B65G57/11—Stacking of articles by adding to the top of the stack the articles being stacked by direct action of the feeding conveyor
    • B65G57/14—Stacking of articles by adding to the top of the stack the articles being stacked by direct action of the feeding conveyor the articles being transferred from carriers moving in an endless path adjacent to the stacks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G59/00—De-stacking of articles
    • B65G59/02—De-stacking from the top of the stack

Definitions

  • the present invention relates to a device for stacking and unstacking workpiece supports.
  • each part is placed on a unitary support. Thus, during cooking, each piece can retract independently of the others while keeping its geometry.
  • each object is placed on a unitary support and does not leave it until it is cooked.
  • Each object manipulation is done with the corresponding support.
  • many manipulations of supports are carried out.
  • the supports, each provided with a dried part, are placed on a cooking trolley.
  • the supports are then taken one after the other and are deposited so as to form a stack.
  • Several stacks of media are placed on a cart and the cart goes through a baking oven. At the exit of the oven, the supports are unstacked by removing the supports one after the other and depositing them on a conveyor, then the baked object is removed from its support, the latter is cleaned, possibly turned over and finally a dried clay object is placed on the clean support.
  • the support is conveyed from one station to another. It thus passes through a cart loading station before cooking and after cooking through a cart unloading station, then a station for removing the cooked object, a cleaning station, a turning station and finally a loading. Many trips are therefore necessary. These displacements are called horizontal displacements, because they are carried out by conveyors generally moving the object and its support in a horizontal plane. During these horizontal movements, the supports are subjected to numerous shocks and it often happens that one of them breaks.
  • the object of the invention is therefore to propose a device making it possible to avoid a large number of horizontal manipulations in order to avoid impacts to the supports and also to save space.
  • the device which it offers is a stacking and unstacking device which comprises:
  • - rungs mounted sliding in each of the uprights, so as to be able to slide substantially vertically, two neighboring rungs being connected to each other so as to be able to rest on one hand on the other, each facing to a workpiece support placed in a stack of supports and on the other hand to be spaced from each other by a predefined maximum distance, - a lifting system acting on each upper rung of a vertical upright in order to move this step along the corresponding amount,
  • This device allows you to grab a stack of supports by placing the rungs under the edges of each support in the stack. It is then possible to separate the levels from each other to allow the robot has access to the parts placed on the supports.
  • the stack of supports can also be moved in its entirety to for example go from a storage position to a position allowing its loading and / or unloading by the robot.
  • Each of the uprights advantageously has the same number of steps and the steps are face to face. This number of rungs depends on the number of supports to stack or unstack. The maximum number of stackable supports is equal to the number of steps per upright.
  • each rung is connected to the neighboring rung by two rods, each rod being articulated by one of its ends to one of the two rungs and by its other end to the other link.
  • two neighboring steps are one on the other when the two rods are in a folded position and when they are substantially one in the extension of the other, the maximum spacing is achieved between the two steps.
  • two neighboring rungs are connected by a cable, or the like, of predetermined length, each cable connecting two rungs having the same length.
  • the two vertical uprights can be moved relative to each other.
  • the invention proposes that the vertical uprights be mounted on a chassis comprising at least one substantially horizontal rack, each upright being able to move relative to this rack.
  • the lifting system it may for example comprise a pulley placed above each upright, driven in rotation by a motor and connected to the corresponding upper rung by a cable or the like, and the two pulleys are preferably synchronized.
  • the invention also provides a method of stacking and a method of unstacking workpiece supports provided with at least two flanges.
  • the proposed method consists in: - placing each support using its edges on at least two rungs, the rungs being arranged in parallel on two substantially vertical columns facing each other and each support resting on a rung of the first column and a rung of the second column, - bring the supports in a vertical direction from each other by bringing the rungs of each column closer to each other, until the supports rest the one on top of the other and form a pile,
  • the stack of supports being at the chosen location, spread the rungs in a horizontal direction, so that the columns move away from each other and that the rungs are no longer engaged with the edges of the supports.
  • Figure 5 shows a similar device surrounded by several robots.
  • the stacking and unstacking device according to the invention shown in the drawing is used for handling supports 2.
  • the latter carry, for example, dried or cooked tiles 4 and are placed in piles on a carriage 6, which is intended to drive the tiles through a baking oven.
  • the supports 2, each provided with a tile 4, are therefore stacked on the carriage 6 before cooking and are unstacked after this.
  • the device according to the invention comprises two vertical uprights 8 in each of which slide profiles 10 of cross section in L.
  • the two vertical uprights 8 are substantially identical and face each other.
  • the various profiles 10 of the two uprights are all identical. They are slidably mounted in guide grooves 12. The end of each profile 10 can thus slide in a groove 12 made in one of the uprights 8.
  • Each upright 8 thus has two guide grooves 12 in which the profiles 10 slide.
  • the profiles 10 rest on each other in each of the two uprights 8. They are oriented so that the small branches of the L are horizontal, face the small branches of the L of the profiles other amount and are each placed under the large branch of the corresponding L. There is for each upright a stack of profile 10 with projections 14 formed by the edge of the profiles 10, edge formed by the small branch of the L of these profiles. These projections 14 form regularly spaced steps.
  • Each upright 8 has the same number of sections 10 and the two stacks of sections are symmetrical.
  • Each support 2 is formed by a substantially horizontal plate on which the corresponding tile 4 rests and by two vertical plates.
  • the horizontal plate is fixed substantially at mid-height of the vertical plates and it has a width greater than that of the vertical plates, so that in side view (figures), the horizontal plate forms a protruding rim 16.
  • Such supports 2 can be stacked by overlapping the vertical plates. A stack of supports, as shown in the figures, therefore presents, in side view, a series of flanges 16 placed at equal distance one above the other.
  • the profiles 10 are adapted so that the projections 14 correspond to the flanges 16.
  • the spacing between two neighboring projections 14 is substantially equal to the spacing between two flanges 16.
  • each flange 16 of a support corresponds to a projection 14 of a profile.
  • the latter is placed just below the rim 16 ( Figure 2).
  • Two neighboring sections 10 are interconnected by two links 18.
  • Each link 18 is articulated by one of its ends to a profile 10 and by its other end to a link 18 connected to a neighboring profile.
  • two neighboring sections 10 can rest on each other or be spaced from each other by a maximum distance defined by the length of the rods 18, or more precisely by the distance separating the two points of articulation of these links.
  • the profiles deviate one after the other from the lower neighboring profile ( Figure 3) to the position shown in Figure 4, where all the profiles are spaced 1 'of 1 'other with the maximum spacing authorized by the links 18.
  • a lifting system is provided to act on the upper section 11 of each upright. It comprises for each upright 8 two pulleys 20, one at each end, driven in rotation by a motor not shown and a cable, shown in phantom in the figures, fixed on one end of the corresponding upper section 11 and winding or unwinding from the corresponding pulley 20. In order to synchronize the movement of the profiles of the two uprights 8, the same motor drives all the pulleys 20.
  • the two uprights 8 can approach and / or move away from each other.
  • a rack-and-pinion spacer system is provided.
  • the two uprights 8 are mounted in a chassis 22 of substantially parallelepiped shape.
  • Four racks 24 are fixed horizontally to the frame 22. They connect the four corners of each upright 8.
  • a pinion not shown in the drawing, is mounted at each corner of each upright 8 and it meshes with the corresponding rack 24.
  • a motor also not shown, drives each pinion in rotation. The operation of the stacking and unstacking device is described below with reference to FIGS. 1 to 4.
  • Supports 2 each carrying a baked tile 4, are stacked on a carriage 6 which comes out of a baking oven.
  • the carriage 6 is placed under the device according to the invention.
  • the uprights 8 are in the separated position ( Figure 1). Once the carriage is in place, the device is lowered so that one or more stacks of supports 2, depending on the width of the uprights, comes to be placed between the uprights 8, until the latter come to rest on the carriage 6.
  • the uprights 8 are then brought together from one to the other by virtue of the spacing system (FIG. 2).
  • the projections 14 of the profiles slide during this approaching movement below the flanges 16 of the supports 2 stacked on the carriage 6.
  • Each support 2 is therefore located on two profiles 10, one at each of its ends.
  • the lifting system is then activated.
  • the four pulleys 20 wind the corresponding cable and the upper section 11 of each upright is pulled upwards.
  • the other sections 10 are then driven in the same way as the upper section 11 drives its neighboring section (FIG. 3).
  • the pulleys 20 wind the corresponding cable until all of the sections 10 are spaced from each other with their maximum spacing.
  • the uprights 8 are then removed upwards with the chassis 22.
  • the cooked tiles 4 can be removed from their support 2 by an unloading robot 26 and 4 "green" tiles, that is to say which are not still cooked, can be placed on the empty supports 2 using a loading robot 28 ( Figure 5).
  • the spacing between the supports 2, defined by the links 18, is chosen so that the loading 28 and unloading robots 26 can easily pass between two neighboring supports for laying or taking tiles 4.
  • Supports 2 are placed between the uprights 8, on the profiles 10, when the uprights 8 are in the close position and the profiles in the separated position ( Figure 4).
  • the frame 22 and the uprights 8 place the stack of supports on the carriage 6.
  • the stacking device is placed on the carriage 6, at the place where the stack of supports must be deposited.
  • the profile lifting system 10 is actuated so that the profiles 10 descend and rest on each other. This is achieved by unwinding the cable from each pulley 20. Once the profiles 10 rest on each other, the stack of supports 2 is no longer carried by the profiles 10. The projections 14 of these then withdraw and move away from the edges 16. The uprights 8 therefore move away from one another.
  • the stack of supports 2 rests on the carriage 6. It then suffices to remove the stacking device which is found, for example, in the position shown in FIG. 1.
  • FIG. 5 shows an installation for loading and unloading tiles 4.
  • the carriage 6 and its stacks of supports 2 and the unloading 26 and loading 28 robots.
  • the carriage 6 is loaded with supports 2 emerging from a baking oven.
  • Each support 2 placed on the carriage therefore carries a baked tile 4.
  • the support 2 stripped of its tile 4 is cleaned by a cleaning system 30.
  • the latter rids the support of any dust or debris which could hinder during subsequent use.
  • the cleaned support then possibly passes in front of a turner 32 of supports.
  • the supports 2 are subjected to significant stresses during their use, constraints which can lead to deformations. To avoid these deformations, the supports 2 are returned to each use, so that the deformations occurring during a cooking cycle compensate for the deformations of the previous cycle.
  • the returned support is replaced on the stacking and unstacking device and receives on the next floor a 4 "green” tile, loaded by the loading robot 28.
  • All the supports of the stack pass in front of these robots and undergo one after the other the above steps. Once all of the supports 2 have been fitted with a "green" tile 4, all of the supports can be stacked again on the carriage 6.
  • the profiles could be replaced by elements having a completely different shape, to adapt to another form of support.
  • the lifting system does not necessarily include a pulley and a cable acting on the profile, or similar, upper.
  • the upper profile could for example be fixed to a link of an endless chain which would pass over two toothed wheels. The rotation of a toothed wheel would cause the profile or the like to go up or down.
  • the system for spacing the two uprights does not necessarily include a rack.
  • a system with pneumatic or hydraulic cylinders would replace the racks.
  • the application of the device to the manufacture of tiles is not limiting. This device can be used wherever it is necessary to unstack and stack supports.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Furnace Charging Or Discharging (AREA)

Abstract

This device comprises: two vertical mobile posts (8) placed opposite each other; rungs (10, 14) mounted sliding in each of the posts (8) for sliding substantially vertically, two adjacent rungs (10, 14) being mutually coupled; a lifting system operating on each upper rung (11) of a vertical post for moving this rung (11) along the corresponding post; means (24) for bringing closer or moving apart the vertical posts (8); at least one robot (26, 28) for loading or unloading the parts (4) on or from their supports (2).

Description

Dispositif d ' empilage et de dépilage de supports de piècesDevice for stacking and unstacking workpiece supports
La présente invention a pour objet un dispositif d'empilage et de dépilage de supports de pièces.The present invention relates to a device for stacking and unstacking workpiece supports.
Pour la fabrication d'objets en terre cuite, tels par exemple des briques ou des tuiles, les objets sont tout d'abord mis en forme, puis séchés et enfin cuits. Certaines argiles utilisées pour la fabrication de ces objets présentent un taux de retrait important. Pour éviter la déformation de la pièce au cours de la cuisson et assurer un maintien de la géométrie du produit, chaque pièce est déposée sur un support unitaire. Ainsi, au cours de la cuisson, chaque pièce peut se rétracter indépendamment des autres tout en gardant sa géométrie.For the manufacture of terracotta objects, such as for example bricks or tiles, the objects are first shaped, then dried and finally cooked. Certain clays used for the manufacture of these objects have a high shrinkage rate. To avoid deformation of the part during cooking and to maintain the geometry of the product, each part is placed on a unitary support. Thus, during cooking, each piece can retract independently of the others while keeping its geometry.
Au cours des diverses étapes de la fabrication des objets en terre cuite, chaque objet est posé sur un support unitaire et ne le quitte plus jusqu'à ce qu'il soit cuit. Chaque manipulation d'objet est faite avec le support correspondant. Au niveau de la cuisson, de nombreuses manipulations de supports sont réalisées. Les supports, munis chacun d'une pièce séchée, sont mis en place sur un chariot de cuisson. Les supports sont alors pris les uns après les autres et sont déposés de manière à former une pile. Plusieurs piles de supports sont placées sur un chariot et ce dernier passe dans un four de cuisson. À la sortie du four, les supports sont dépilés en retirant l'un après l'autre les supports et en les déposant sur un convoyeur, puis l'objet cuit est retiré de son support, ce dernier est nettoyé, éventuellement retourné et enfin un objet en argile séchée est placé sur le support propre.During the various stages of the manufacture of terracotta objects, each object is placed on a unitary support and does not leave it until it is cooked. Each object manipulation is done with the corresponding support. In terms of cooking, many manipulations of supports are carried out. The supports, each provided with a dried part, are placed on a cooking trolley. The supports are then taken one after the other and are deposited so as to form a stack. Several stacks of media are placed on a cart and the cart goes through a baking oven. At the exit of the oven, the supports are unstacked by removing the supports one after the other and depositing them on a conveyor, then the baked object is removed from its support, the latter is cleaned, possibly turned over and finally a dried clay object is placed on the clean support.
Entre chacune de ces opérations, le support est convoyé d'un poste à l'autre. Il passe ainsi par un poste de chargement de chariot avant la cuisson et après la cuisson par un poste de déchargement de chariot, puis un poste de retrait de l'objet cuit, un poste de nettoyage, un poste de retournement et enfin un poste de chargement. De nombreux déplacements sont donc nécessaires. Ces déplacements sont appelés déplacements horizontaux, car ils sont réalisés par des convoyeurs déplaçant généralement l'objet et son support dans un plan horizontal. Au cours de ces déplacements horizontaux, les supports sont soumis à de nombreux chocs et il arrive souvent que l'un d'eux se brise.Between each of these operations, the support is conveyed from one station to another. It thus passes through a cart loading station before cooking and after cooking through a cart unloading station, then a station for removing the cooked object, a cleaning station, a turning station and finally a loading. Many trips are therefore necessary. These displacements are called horizontal displacements, because they are carried out by conveyors generally moving the object and its support in a horizontal plane. During these horizontal movements, the supports are subjected to numerous shocks and it often happens that one of them breaks.
En outre, ces nombreux convoyeurs utilisés pour acheminer les objets et/ou leurs supports nécessitent une place importante. Le but de l'invention est alors de proposer un dispositif permettant d'éviter un grand nombre de manipulations horizontales pour éviter des chocs aux supports et aussi pour gagner de la place.In addition, these numerous conveyors used to convey the objects and / or their supports require a large space. The object of the invention is therefore to propose a device making it possible to avoid a large number of horizontal manipulations in order to avoid impacts to the supports and also to save space.
A cet effet, le dispositif qu'elle propose est un dispositif d'empilage et de dépilage qui comporte :To this end, the device which it offers is a stacking and unstacking device which comprises:
- deux montants verticaux mobiles placés l'un en face de l'autre,- two movable vertical uprights placed one opposite the other,
- des échelons montés coulissants dans chacun des montants, de manière à pouvoir coulisser sensiblement verticalement, deux échelons voisins étant reliés l'un à l'autre de manière à pouvoir d'une part reposer l'un sur l'autre en faisant chacun face à un support de pièce placé dans une pile de supports et d'autre part être espacé l'un de l'autre d'une distance maximale prédéfinie, - un système de levage agissant sur chaque échelon supérieur d'un montant vertical afin de déplacer cet échelon le long du montant correspondant,- rungs mounted sliding in each of the uprights, so as to be able to slide substantially vertically, two neighboring rungs being connected to each other so as to be able to rest on one hand on the other, each facing to a workpiece support placed in a stack of supports and on the other hand to be spaced from each other by a predefined maximum distance, - a lifting system acting on each upper rung of a vertical upright in order to move this step along the corresponding amount,
- des moyens permettant de rapprocher ou d'éloigner les montants verticaux l'un de l'autre, et - au moins un robot muni d'un dispositif préhenseur permettant de charger ou de décharger des pièces de leurs supports .- Means making it possible to bring the vertical uprights apart or away from one another, and - at least one robot provided with a gripping device making it possible to load or unload parts from their supports.
Ce dispositif permet de saisir une pile de supports en venant placer les échelons sous des rebords de chaque support de la pile. Il est ensuite possible d'écarter les échelons les uns des autres pour permettre au robot l'accès aux pièces posées sur les supports. La pile de supports peut aussi être déplacée dans son intégralité pour par exemple aller d'une position de stockage vers une position permettant son chargement et/ou son déchargement par le robot. Ainsi il est possible d'éviter de nombreux convoyeurs, car le dépilage de la pile de supports est fait en écartant les supports les uns des autres et non en les déposant les uns à côté des autres sur un convoyeur. Les déplacements horizontaux sont évités et le gain de place réalisé est important.This device allows you to grab a stack of supports by placing the rungs under the edges of each support in the stack. It is then possible to separate the levels from each other to allow the robot has access to the parts placed on the supports. The stack of supports can also be moved in its entirety to for example go from a storage position to a position allowing its loading and / or unloading by the robot. Thus it is possible to avoid many conveyors, because the unstacking of the stack of supports is done by moving the supports apart from one another and not by placing them next to each other on a conveyor. Horizontal movements are avoided and the space saved is significant.
Chacun des montants comporte avantageusement un même nombre d'échelons et les échelons sont face à face. Ce nombre d'échelons dépend du nombre de supports à empiler ou dépiler. Le nombre maximum de supports empilable est égal au nombre d'échelons par montant.Each of the uprights advantageously has the same number of steps and the steps are face to face. This number of rungs depends on the number of supports to stack or unstack. The maximum number of stackable supports is equal to the number of steps per upright.
Dans une première forme de réalisation proposée par l'invention, chaque échelon est relié à l'échelon voisin par deux biellettes, chaque biellette étant articulée par l'une de ses extrémités à l'un des deux échelons et par son autre extrémité à l'autre biellette. De cette manière, deux échelons voisins sont l'un sur l'autre lorsque les deux biellettes sont dans une position repliée et lorsqu'elles sont sensiblement l'une dans le prolongement de l'autre, l'espacement maximal est réalisé entre les deux échelons.In a first embodiment proposed by the invention, each rung is connected to the neighboring rung by two rods, each rod being articulated by one of its ends to one of the two rungs and by its other end to the other link. In this way, two neighboring steps are one on the other when the two rods are in a folded position and when they are substantially one in the extension of the other, the maximum spacing is achieved between the two steps.
Dans une autre forme de réalisation, deux échelons voisins sont reliés par un câble, ou similaire, de longueur prédéterminée, chaque câble reliant deux échelons présentant la même longueur. Les deux montants verticaux peuvent être déplacés l'un par rapport à l'autre. Pour permettre ce déplacement, 1 ' invention propose que les montants verticaux soient montés sur un châssis comportant au moins une crémaillère sensiblement horizontale, chaque montant pouvant se déplacer par rapport à cette crémaillère. Quant au système de levage, il peut par exemple comporter une poulie placée au-dessus de chaque montant, entraînée en rotation par un moteur et reliée à l'échelon supérieur correspondant par un câble ou similaire, et les deux poulies sont de préférence synchronisées.In another embodiment, two neighboring rungs are connected by a cable, or the like, of predetermined length, each cable connecting two rungs having the same length. The two vertical uprights can be moved relative to each other. To allow this movement, the invention proposes that the vertical uprights be mounted on a chassis comprising at least one substantially horizontal rack, each upright being able to move relative to this rack. As for the lifting system, it may for example comprise a pulley placed above each upright, driven in rotation by a motor and connected to the corresponding upper rung by a cable or the like, and the two pulleys are preferably synchronized.
L ' invention propose également un procédé d'empilage et un procédé de dépilage de supports de pièces munis d'au moins deux rebords. Pour empiler des supports, le procédé proposé consiste à : - placer chaque support à l'aide de ses rebords sur au moins deux échelons, les échelons étant rangés parallèlement sur deux colonnes sensiblement verticales se faisant face et chaque support reposant sur un échelon de la première colonne et un échelon de la seconde colonne, - rapprocher dans une direction verticale les supports l'un de l'autre en rapprochant les échelons de chaque colonne l'un de l'autre, jusqu'à ce que les supports reposent l'un sur l'autre et forment une pile,The invention also provides a method of stacking and a method of unstacking workpiece supports provided with at least two flanges. To stack supports, the proposed method consists in: - placing each support using its edges on at least two rungs, the rungs being arranged in parallel on two substantially vertical columns facing each other and each support resting on a rung of the first column and a rung of the second column, - bring the supports in a vertical direction from each other by bringing the rungs of each column closer to each other, until the supports rest the one on top of the other and form a pile,
- la pile de supports se trouvant à l'emplacement choisi, écarter dans une direction horizontale les échelons, de telle sorte que les colonnes s'éloignent l'une de l'autre et que les échelons ne soient plus en prise avec les rebords des supports.- the stack of supports being at the chosen location, spread the rungs in a horizontal direction, so that the columns move away from each other and that the rungs are no longer engaged with the edges of the supports.
Pour dépiler des supports se trouvant placés les uns sur les autres de manière à former une pile, le procédé proposé consiste à :To unstack supports placed on top of each other so as to form a stack, the proposed method consists in:
- placer de chaque côté de la pile de supports une colonne d'échelons horizontaux, les échelons étant placés parallèlement les uns au-dessus des autres et chaque échelons correspondant à un rebord de support,- place on each side of the stack of supports a column of horizontal rungs, the rungs being placed parallel one above the other and each rung corresponding to a support rim,
- rapprocher dans une direction horizontale les deux colonnes d'échelons l'une de l'autre, jusqu'à ce que les échelons se retrouvent sous chacun des rebords correspondants , - espacer les échelons les uns des autres en les déplaçant verticalement, les échelons entraînant les supports dans leur ascension.- bring the two rung columns one in a horizontal direction from the other, until the rungs are found under each of the corresponding edges, - space the rungs apart from one another by moving them vertically, the rungs driving the supports in their ascent.
Ces procédés d'empilage et de dépilage permettent d'éviter tout déplacement horizontal des supports. Les chocs et contraintes auxquels sont soumis ces supports sont très sensiblement diminués par rapport aux chocs et contraintes qu'ils subissent par un procédé d'empilage et de dépilage de l'état de la technique antérieure. De toute façon, l'invention sera bien comprise à l'aide de la description qui suit, en référence au dessin schématique annexé, représentant à titre d'exemple non limitatif une forme de réalisation d'un dispositif selon 1' invention. Figures 1 à 4 représentent en élévation un dispositif de dépilage et d'empilage selon l'invention dans diverses positions de travail, etThese stacking and unstacking methods make it possible to avoid any horizontal displacement of the supports. The shocks and stresses to which these supports are subjected are very significantly reduced compared to the shocks and stresses they undergo by a stacking and unstacking process of the state of the prior art. In any case, the invention will be clearly understood with the aid of the description which follows, with reference to the appended diagrammatic drawing, representing by way of nonlimiting example an embodiment of a device according to the invention. Figures 1 to 4 show in elevation a destacking and stacking device according to the invention in various working positions, and
Figure 5 montre un dispositif semblable entourés de plusieurs robots. Le dispositif d'empilage et de dépilage selon l'invention représenté au dessin sert à la manipulation de supports 2. Ces derniers portent par exemple des tuiles 4 séchées ou cuites et sont placés en piles sur un chariot 6, qui est destiné à conduire les tuiles à travers un four de cuisson. Les supports 2, munis chacun d'une tuile 4, sont donc empilés sur le chariot 6 avant la cuisson et sont dépilés après celle-ci.Figure 5 shows a similar device surrounded by several robots. The stacking and unstacking device according to the invention shown in the drawing is used for handling supports 2. The latter carry, for example, dried or cooked tiles 4 and are placed in piles on a carriage 6, which is intended to drive the tiles through a baking oven. The supports 2, each provided with a tile 4, are therefore stacked on the carriage 6 before cooking and are unstacked after this.
Le dispositif selon l'invention comporte deux montants verticaux 8 dans chacun desquels coulissent des profilés 10 de section transversale en L.The device according to the invention comprises two vertical uprights 8 in each of which slide profiles 10 of cross section in L.
Les deux montants verticaux 8 sont sensiblement identiques et se font face. Les divers profilés 10 des deux montants sont tous identiques. Ils sont montés coulissant dans des rainures de guidage 12. L'extrémité de chaque profilé 10 peut ainsi coulisser dans une rainure 12 réalisée dans 1 ' un des montants 8. Chaque montant 8 présente ainsi deux rainures de guidage 12 dans lesquelles coulissent les profilés 10.The two vertical uprights 8 are substantially identical and face each other. The various profiles 10 of the two uprights are all identical. They are slidably mounted in guide grooves 12. The end of each profile 10 can thus slide in a groove 12 made in one of the uprights 8. Each upright 8 thus has two guide grooves 12 in which the profiles 10 slide.
Sur les figures 1 et 2 , les profilés 10 reposent les uns sur les autres dans chacun des deux montants 8. Ils sont orientés de telle sorte que les petites branches du L sont horizontales, font face aux petites branches du L des profilés de l'autre montant et sont placées chacune sous la grande branche du L correspondante. On retrouve pour chaque montant une pile de profilé 10 avec des saillies 14 formées par le rebord des profilés 10, rebord constitué par la petite branche du L de ces profilés. Ces saillies 14 forment des échelons régulièrement espacés. Chaque montant 8 comporte le même nombre de profilés 10 et les deux piles de profilés sont symétriques. Chaque support 2 est formé par une plaque sensiblement horizontale sur laquelle repose la tuile 4 correspondante et par deux plaques verticales. La plaque horizontale est fixée sensiblement à mi-hauteur des plaques verticales et elle présente une largeur supérieure à celle des plaques verticales, de telle sorte qu'en vue de côté (figures), la plaque horizontale forme un rebord saillant 16. De tels supports 2 peuvent être empilés en superposant les plaques verticales. Une pile de supports, telle que représentée sur les figures, présente donc, en vue de côté, une série de rebords 16 placés à égale distance les uns au dessus des autres.In Figures 1 and 2, the profiles 10 rest on each other in each of the two uprights 8. They are oriented so that the small branches of the L are horizontal, face the small branches of the L of the profiles other amount and are each placed under the large branch of the corresponding L. There is for each upright a stack of profile 10 with projections 14 formed by the edge of the profiles 10, edge formed by the small branch of the L of these profiles. These projections 14 form regularly spaced steps. Each upright 8 has the same number of sections 10 and the two stacks of sections are symmetrical. Each support 2 is formed by a substantially horizontal plate on which the corresponding tile 4 rests and by two vertical plates. The horizontal plate is fixed substantially at mid-height of the vertical plates and it has a width greater than that of the vertical plates, so that in side view (figures), the horizontal plate forms a protruding rim 16. Such supports 2 can be stacked by overlapping the vertical plates. A stack of supports, as shown in the figures, therefore presents, in side view, a series of flanges 16 placed at equal distance one above the other.
Les profilés 10 sont adaptés de telle sorte que les saillies 14 correspondent aux rebords 16. L'espacement entre deux saillies 14 voisines est sensiblement égal à l'espacement entre deux rebords 16. Lorsque les montants 8 reposent à côté d'une pile de supports 2, à chaque rebord 16 d'un support correspond une saillie 14 d'un profilé. Cette dernière est placée juste en dessous du rebord 16 (figure 2 ) . Deux profilés 10 voisins sont reliés entre eux par deux biellettes 18. Chaque biellette 18 est articulée par l'une de ses extrémités à un profilé 10 et par son autre extrémité à une biellette 18 reliée à un profilé voisin. De cette manière, deux profilés 10 voisins peuvent reposer l'un sur l'autre ou bien être espacés l'un de l'autre d'une distance maximale définie par la longueur des biellettes 18, ou plus précisément par la distance séparant les deux points d'articulation de ces biellettes. En tirant vers le haut le profilé supérieur 11, les profilés s'écartent les uns après les autres du profilé voisin inférieur (figure 3) jusqu'à la position montrée sur la figure 4, où tous les profilés sont espacés 1 ' un de 1 ' autre avec 1 ' espacement maximal autorisé par les biellettes 18.The profiles 10 are adapted so that the projections 14 correspond to the flanges 16. The spacing between two neighboring projections 14 is substantially equal to the spacing between two flanges 16. When the uprights 8 rest next to a stack of supports 2, each flange 16 of a support corresponds to a projection 14 of a profile. The latter is placed just below the rim 16 (Figure 2). Two neighboring sections 10 are interconnected by two links 18. Each link 18 is articulated by one of its ends to a profile 10 and by its other end to a link 18 connected to a neighboring profile. In this way, two neighboring sections 10 can rest on each other or be spaced from each other by a maximum distance defined by the length of the rods 18, or more precisely by the distance separating the two points of articulation of these links. By pulling up the upper profile 11, the profiles deviate one after the other from the lower neighboring profile (Figure 3) to the position shown in Figure 4, where all the profiles are spaced 1 'of 1 'other with the maximum spacing authorized by the links 18.
Un système de levage est prévu pour agir sur le profilé supérieur 11 de chaque montant. Il comporte pour chaque montant 8 deux poulies 20, une à chaque extrémité, entraînées en rotation par un moteur non représenté et un câble, représenté en trait mixte sur les figures, fixé sur une extrémité du profilé supérieur 11 correspondant et s 'enroulant ou se déroulant de la poulie 20 correspondante. Afin de synchroniser le mouvement des profilés des deux montants 8, un même moteur entraîne toutes les poulies 20.A lifting system is provided to act on the upper section 11 of each upright. It comprises for each upright 8 two pulleys 20, one at each end, driven in rotation by a motor not shown and a cable, shown in phantom in the figures, fixed on one end of the corresponding upper section 11 and winding or unwinding from the corresponding pulley 20. In order to synchronize the movement of the profiles of the two uprights 8, the same motor drives all the pulleys 20.
Les deux montants 8 peuvent se rapprocher et/ou s'éloigner l'un de l'autre. A cet effet, un système d'écartement à crémaillère est prévu. Les deux montants 8 sont montés dans un châssis 22 de forme sensiblement parallélépipèdique. Quatre crémaillères 24 sont fixées horizontalement sur le châssis 22. Elles relient les quatre coins de chaque montant 8. Un pignon, non représenté au dessin, est monté à chaque coin de chaque montant 8 et il engrène avec la crémaillère 24 correspondante. Un moteur, non représenté également, entraîne chaque pignon en rotation. Le fonctionnement du dispositif d'empilage et de dépilage est décrit ci-après en référence aux figures 1 à 4.The two uprights 8 can approach and / or move away from each other. To this end, a rack-and-pinion spacer system is provided. The two uprights 8 are mounted in a chassis 22 of substantially parallelepiped shape. Four racks 24 are fixed horizontally to the frame 22. They connect the four corners of each upright 8. A pinion, not shown in the drawing, is mounted at each corner of each upright 8 and it meshes with the corresponding rack 24. A motor, also not shown, drives each pinion in rotation. The operation of the stacking and unstacking device is described below with reference to FIGS. 1 to 4.
Des supports 2, portant chacun une tuile 4 cuite, sont empilés sur un chariot 6 qui sort d'un four de cuisson. Le chariot 6 est placé sous le dispositif selon l'invention. Les montants 8 sont en position écartée (figure 1). Une fois le chariot en place, le dispositif est abaissé, de telle sorte qu'une ou plusieurs piles de supports 2, selon la largeur des montants, vienne se placer entre les montants 8, jusqu'à ce que ces derniers viennent reposer sur le chariot 6. Les montants 8 sont alors rapprochés 1 ' un de 1 ' autre grâce au système d'écartement (figure 2). Les saillies 14 des profilés se glissent durant ce mouvement de rapprochement en dessous des rebords 16 des supports 2 empilés sur le chariot 6. Chaque support 2 se trouve donc sur deux profilés 10, un à chacune de ses extrémités .Supports 2, each carrying a baked tile 4, are stacked on a carriage 6 which comes out of a baking oven. The carriage 6 is placed under the device according to the invention. The uprights 8 are in the separated position (Figure 1). Once the carriage is in place, the device is lowered so that one or more stacks of supports 2, depending on the width of the uprights, comes to be placed between the uprights 8, until the latter come to rest on the carriage 6. The uprights 8 are then brought together from one to the other by virtue of the spacing system (FIG. 2). The projections 14 of the profiles slide during this approaching movement below the flanges 16 of the supports 2 stacked on the carriage 6. Each support 2 is therefore located on two profiles 10, one at each of its ends.
Le système de levage est alors actionné. Les quatre poulies 20 enroulent le câble correspondant et le profilé supérieur 11 de chaque montant est tiré vers le haut. Lorsque l'ecartement maximal entre le profilé supérieur 11 et le profilé voisin est atteint, ce dernier est tiré vers le haut. Les autres profilés 10 sont alors entraînés de même que le profilé supérieur 11 entraîne son profilé voisin (figure 3). Les poulies 20 enroulent le câble correspondant jusqu'à ce que tous les profilés 10 soient écartés les uns des autres avec leur espacement maximal. Les montants 8 sont alors retirés vers le haut avec le châssis 22. Les tuiles 4 cuites peuvent être retirées de leur support 2 par un robot de déchargement 26 et des tuiles 4 "vertes", c'est-à-dire qui ne sont pas encore cuites, peuvent être mises en place sur les supports 2 vides à l'aide d'un robot de chargement 28 (figure 5). L'ecartement entre les supports 2, défini par les biellettes 18, est choisi de telle sorte que les robots de chargement 28 et de déchargement 26 puissent passer sans problème entre deux supports voisins pour poser ou prendre des tuiles 4.The lifting system is then activated. The four pulleys 20 wind the corresponding cable and the upper section 11 of each upright is pulled upwards. When the maximum distance between the upper profile 11 and the neighboring profile is reached, the latter is pulled up. The other sections 10 are then driven in the same way as the upper section 11 drives its neighboring section (FIG. 3). The pulleys 20 wind the corresponding cable until all of the sections 10 are spaced from each other with their maximum spacing. The uprights 8 are then removed upwards with the chassis 22. The cooked tiles 4 can be removed from their support 2 by an unloading robot 26 and 4 "green" tiles, that is to say which are not still cooked, can be placed on the empty supports 2 using a loading robot 28 (Figure 5). The spacing between the supports 2, defined by the links 18, is chosen so that the loading 28 and unloading robots 26 can easily pass between two neighboring supports for laying or taking tiles 4.
Pour empiler des supports 2, portant par exemple chacun une tuile 4 "verte", le déroulement est sensiblement l'inverse que celui décrit ci-dessus pour le dépilage de supports.To stack supports 2, for example each carrying a "green" tile 4, the sequence is substantially the opposite as that described above for unstacking supports.
Des supports 2 sont placés entre les montants 8, sur les profilés 10, lorsque les montants 8 sont en position rapprochée et les profilés en position écartée ( figure 4 ) .Supports 2 are placed between the uprights 8, on the profiles 10, when the uprights 8 are in the close position and the profiles in the separated position (Figure 4).
Le châssis 22 et les montants 8 viennent poser la pile de supports sur le chariot 6. Le dispositif d'empilage vient se placer sur le chariot 6, à l'endroit où la pile de supports doit être déposée. Le système de levage des profilés 10 est actionné pour que les profilés 10 descendent et reposent les uns sur les autres. Ceci est réalisé en déroulant le câble de chaque poulie 20. Une fois que les profilés 10 reposent les uns sur les autres, la pile de supports 2 n'est plus portée par les profilés 10. Les saillies 14 de ceux-ci se retirent alors et s'éloignent des rebords 16. Les montants 8 s'éloignent donc l'un de l'autre. La pile de supports 2 repose sur le chariot 6. Il suffit alors de retirer le dispositif d'empilage qui se retrouve par exemple dans la position représentée à la figure 1.The frame 22 and the uprights 8 place the stack of supports on the carriage 6. The stacking device is placed on the carriage 6, at the place where the stack of supports must be deposited. The profile lifting system 10 is actuated so that the profiles 10 descend and rest on each other. This is achieved by unwinding the cable from each pulley 20. Once the profiles 10 rest on each other, the stack of supports 2 is no longer carried by the profiles 10. The projections 14 of these then withdraw and move away from the edges 16. The uprights 8 therefore move away from one another. The stack of supports 2 rests on the carriage 6. It then suffices to remove the stacking device which is found, for example, in the position shown in FIG. 1.
La figure 5 montre une installation de chargement et de déchargement de tuiles 4. On retrouve dans cette installation le dispositif décrit ci-dessus, le chariot 6 et ses piles de supports 2 et les robots de déchargement 26 et de chargement 28. Le chariot 6 est chargé de supports 2 sortant d'un four de cuisson. Chaque support 2 placé sur le chariot porte donc une tuile 4 cuite.FIG. 5 shows an installation for loading and unloading tiles 4. We find in this installation the device described above, the carriage 6 and its stacks of supports 2 and the unloading 26 and loading 28 robots. The carriage 6 is loaded with supports 2 emerging from a baking oven. Each support 2 placed on the carriage therefore carries a baked tile 4.
Lorsque le dispositif d'empilage et de dépilage passe de la position représentée à la figure 3 à la position représentée à la figure 4, les supports 2 reposant sur les profilés 10 passent l'un après l'autre devant plusieurs robots. Au fur et à mesure du passage, diverses opérations sont effectuées par des robots se trouvant à proximité. En remontant, le support supérieur, reposant sur les profilés supérieurs 11, passe devant le robot de déchargement 26. Ce robot prélève la tuile cuite 4 se trouvant sur le support 11.When the stacking and unstacking device passes from the position shown in Figure 3 to the position shown in Figure 4, the supports 2 resting on the profiles 10 pass one after the other in front of several robots. As the passage progresses, various operations are carried out by robots located nearby. Going back up, the upper support, resting on the upper sections 11, passes in front of the unloading robot 26. This robot picks up the fired tile 4 located on the support 11.
A l'étape suivante, le support 2, démuni de sa tuile 4, est nettoyé par un système de nettoyage 30. Ce dernier débarrasse le support de toutes poussières ou de débris qui pourraient gêner lors d'un usage ultérieur.In the next step, the support 2, stripped of its tile 4, is cleaned by a cleaning system 30. The latter rids the support of any dust or debris which could hinder during subsequent use.
Le support nettoyé passe ensuite éventuellement devant un retourneur 32 de supports. Les supports 2 sont soumis à des contraintes importantes au cours de leur utilisation, contraintes qui peuvent conduire à des déformations. Pour éviter ces déformations, les supports 2 sont retournés à chaque usage, de telle sorte que les déformations survenant au cours d'un cycle de cuisson compensent les déformations du cycle précédent.The cleaned support then possibly passes in front of a turner 32 of supports. The supports 2 are subjected to significant stresses during their use, constraints which can lead to deformations. To avoid these deformations, the supports 2 are returned to each use, so that the deformations occurring during a cooking cycle compensate for the deformations of the previous cycle.
Le support retourné est replacé sur le dispositif d'empilage et de dépilage et reçoit à l'étage suivant une tuile 4 "verte", chargée par le robot de chargement 28.The returned support is replaced on the stacking and unstacking device and receives on the next floor a 4 "green" tile, loaded by the loading robot 28.
Tous les supports de la pile passent devant ces robots et subissent les uns après les autres les étapes précitées. Une fois tous les supports 2 munis d'une tuile 4 "verte", l'ensemble des supports peut être à nouveau empilé sur le chariot 6.All the supports of the stack pass in front of these robots and undergo one after the other the above steps. Once all of the supports 2 have been fitted with a "green" tile 4, all of the supports can be stacked again on the carriage 6.
Comme il va de soi, l'invention ne se limite pas à la forme de réalisation décrite ci-dessus à titre d'exemple non limitatif ; elle en embrasse au contraire toutes les variantes.It goes without saying that the invention is not limited to the embodiment described above by way of nonlimiting example; on the contrary, it embraces all its variants.
Ainsi, les profilés pourraient être remplacés par des éléments présentant une forme tout à fait différente, pour s'adapter à une autre forme de support. Le système de levage ne comporte pas forcément une poulie et un câble agissant sur le profilé, ou similaire, supérieur. Le profilé supérieur pourrait par exemple être fixé à un maillon d'une chaîne sans fin qui passerait sur deux roues dentées. La mise en rotation d'une roue dentée provoquerait la montée ou la descente du profilé ou similaire.Thus, the profiles could be replaced by elements having a completely different shape, to adapt to another form of support. The lifting system does not necessarily include a pulley and a cable acting on the profile, or similar, upper. The upper profile could for example be fixed to a link of an endless chain which would pass over two toothed wheels. The rotation of a toothed wheel would cause the profile or the like to go up or down.
De même, le système d'écartement des deux montants ne comporte pas forcément une crémaillère. Un système avec des vérins pneumatiques ou hydrauliques permettrait de remplacer les crémaillères.Likewise, the system for spacing the two uprights does not necessarily include a rack. A system with pneumatic or hydraulic cylinders would replace the racks.
L'application du dispositif à la fabrication de tuiles n'est pas limitative. Ce dispositif peut être utilisé partout où il est nécessaire de dépiler et d'empiler des supports. The application of the device to the manufacture of tiles is not limiting. This device can be used wherever it is necessary to unstack and stack supports.

Claims

REVENDICATIONS
1.- Dispositif d'empilage et de dépilage de supports de pièces, caractérisé en ce qu'il comporte :1.- Stacking and unstacking device for workpiece supports, characterized in that it comprises:
- deux montants (8) verticaux mobiles placés l'un en face de l'autre,- two movable vertical uprights (8) placed one opposite the other,
- des échelons (10,14) montés coulissants dans chacun des montants, de manière à pouvoir coulisser sensiblement verticalement, deux échelons (10,14) voisins étant reliés l'un à l'autre de manière à pouvoir d'une part reposer l'un sur l'autre en faisant chacun face à un support (2) de pièce placé dans une pile de supports et d'autre part être espacé l'un de l'autre d'une distance maximale prédéfinie,- rungs (10,14) slidably mounted in each of the uprights, so as to be able to slide substantially vertically, two neighboring rungs (10,14) being connected to each other so as to be able to rest on the one hand 'one on the other, each facing a workpiece support (2) placed in a stack of supports and on the other hand to be spaced from each other by a predefined maximum distance,
- un système de levage agissant sur chaque échelon supérieur (11) d'un montant vertical afin de déplacer cet échelon (11) le long du montant correspondant,- a lifting system acting on each upper rung (11) of a vertical upright in order to move this rung (11) along the corresponding upright,
- des moyens (24) permettant de rapprocher ou d'éloigner les montants verticaux (8) 1 ' un de l'autre, etmeans (24) making it possible to bring the vertical uprights (8) 1 'closer or further apart from one another, and
- au moins un robot (26,28) muni d'un dispositif préhenseur permettant de charger ou de décharger des pièces (4) de leurs supports (2).- at least one robot (26,28) provided with a gripping device making it possible to load or unload parts (4) from their supports (2).
2.- Dispositif d'empilage et de dépilage de supports de pièces selon la revendication 1, caractérisé en ce que chacun des montants (8) comporte un même nombre d'échelons (10) et en ce que les échelons (10) sont face à face.2. A device for stacking and unstacking workpiece supports according to claim 1, characterized in that each of the uprights (8) has the same number of rungs (10) and in that the rungs (10) are facing to face.
3.- Dispositif d'empilage et de dépilage de supports de pièces selon la revendication 1 ou 2, caractérisé en ce que chaque échelon (10) est relié à l'échelon (10) voisin par deux biellettes (18), chaque biellette (18) étant articulée par l'une de ses extrémités à l'un des deux échelons et par son autre extrémité à l'autre biellette (18).3.- Stacking and unstacking device for workpiece supports according to claim 1 or 2, characterized in that each rung (10) is connected to the neighboring rung (10) by two rods (18), each rod ( 18) being articulated by one of its ends at one of the two rungs and by its other end to the other link (18).
4.- Dispositif d'empilage et de dépilage de supports de pièces selon la revendication 1 ou 2, caractérisé en ce que deux échelons (10) voisins sont reliés par un câble, ou similaire, de longueur prédéterminée, chaque câble reliant deux échelons (10) présentant la même longueur.4.- Stacking and unstacking device for workpiece supports according to claim 1 or 2, characterized in that two neighboring steps (10) are connected by a cable, or the like, of predetermined length, each cable connecting two steps (10) having the same length.
5.- Dispositif d'empilage et de dépilage de supports de pièces selon l'une des revendications 1 à 4, caractérisé en ce que les montants verticaux (8) sont montés sur un châssis (22) comportant au moins une crémaillère (24) sensiblement horizontale, chaque montant (8) pouvant se déplacer par rapport à cette crémaillère (24).5.- Stacking and unstacking device for workpiece supports according to one of claims 1 to 4, characterized in that the vertical uprights (8) are mounted on a frame (22) comprising at least one rack (24) substantially horizontal, each upright (8) being able to move relative to this rack (24).
6.- Dispositif d'empilage et de dépilage de supports de pièces selon l'une des revendications 1 à 5, caractérisé en ce que le système de levage comporte une poulie (20) placée au-dessus de chaque montant (8), entraînée en rotation par un moteur et reliée à l'échelon supérieur (11) correspondant par un câble ou similaire, et en ce que les deux poulies (20) sont synchronisées.6.- Stacking and unstacking device for workpiece supports according to one of claims 1 to 5, characterized in that the lifting system comprises a pulley (20) placed above each upright (8), driven in rotation by a motor and connected to the upper rung (11) corresponding by a cable or the like, and in that the two pulleys (20) are synchronized.
7.- Procédé d'empilage de supports (2) de pièces munis d'au moins deux rebords (16), caractérisé en ce qu'il consiste à :7.- A method of stacking supports (2) of parts provided with at least two flanges (16), characterized in that it consists of:
- placer chaque support (2) à l'aide de ses rebords (16) sur au moins deux échelons (10), les échelons (10) étant rangés parallèlement sur deux colonnes sensiblement verticales se faisant face et chaque support (2) reposant sur un échelon (10) de la première colonne et un échelon (10) de la seconde colonne,- Place each support (2) using its flanges (16) on at least two rungs (10), the rungs (10) being stored in parallel on two substantially vertical columns facing each other and each support (2) resting on a rung (10) of the first column and a rung (10) of the second column,
- rapprocher dans une direction verticale les supports (2) l'un de l'autre en rapprochant les échelons (10) de chaque colonne l'un de l'autre, jusqu'à ce que les supports (2) reposent l'un sur l'autre et forment une pile,- bring the supports (2) in a vertical direction towards each other by bringing the steps (10) of each column closer to each other, until the supports (2) rest one on the other and form a pile,
- la pile de supports (2) se trouvant à l'emplacement choisi, écarter dans une direction horizontale les échelons (2), de telle sorte que les colonnes s'éloignent l'une de l'autre et que les échelons (10) ne soient plus en prise avec les rebords (16) des supports .- the stack of supports (2) being at the chosen location, spread the rungs (2) in a horizontal direction, so that the columns move away from each other and the rungs (10) are no longer engaged with the edges (16) of the supports.
8.- Procédé de dépilage de supports (2) de pièces munis d'au moins deux rebords (16), les supports étant placés les uns sur les autres de manière à former une pile, caractérisé en ce qu'il consiste à :8.- Method of unstacking supports (2) of parts provided with at least two flanges (16), the supports being placed one on the other so as to form a stack, characterized in that it consists in:
- placer de chaque côté de la pile de supports (2) une colonne d'échelons (10) horizontaux, les échelons étant placés parallèlement les uns au-dessus des autres et chaque échelons correspondant à un rebord de support,- placing on each side of the stack of supports (2) a column of horizontal rungs (10), the rungs being placed parallel one above the other and each rung corresponding to a support rim,
- rapprocher dans une direction horizontale les deux colonnes d'échelons (10) l'une de l'autre, jusqu'à ce que les échelons (10) se retrouvent sous chacun des rebords correspondants, - espacer les échelons (10) les uns des autres en les déplaçant verticalement, les échelons (10) entraînant les supports (2) dans leur ascension. - bring the two rung columns (10) in a horizontal direction one from the other, until the rungs (10) meet under each of the corresponding edges, - space the rungs (10) apart others by moving them vertically, the rungs (10) driving the supports (2) in their ascent.
PCT/FR1997/001867 1996-10-17 1997-10-17 Device for stacking and de-hacking part supports WO1998017559A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9612852A FR2754803B1 (en) 1996-10-17 1996-10-17 DEVICE FOR STACKING AND UNPILING WORKPIECE SUPPORTS
FR96/12852 1996-10-17

Publications (1)

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WO1998017559A1 true WO1998017559A1 (en) 1998-04-30

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PCT/FR1997/001867 WO1998017559A1 (en) 1996-10-17 1997-10-17 Device for stacking and de-hacking part supports

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FR (1) FR2754803B1 (en)
WO (1) WO1998017559A1 (en)

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CN108238450A (en) * 2018-01-26 2018-07-03 陕西猕林果业有限公司 A kind of robot palletizer easy to remove

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DE19948131A1 (en) * 1999-10-07 2001-04-12 Schmid Gmbh & Co Geb Device for loading and unloading in the treatment of plate-shaped objects
DE102006022155A1 (en) * 2006-05-12 2007-12-06 Kuka Roboter Gmbh Method and device for depalletising stacked containers
IT202000016141A1 (en) * 2020-07-03 2022-01-03 O C E M S R L Officina Costruzioni Elettro Mecc MACHINERY FOR THE HANDLING OF TRANSPORT TRAYS OF PRESSED CEMENT-BASED TILES
EP4062754A1 (en) * 2021-03-25 2022-09-28 Jungheinrich Aktiengesellschaft Block storage assembly

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DE2051909A1 (en) * 1970-10-22 1971-10-14
DE3030617A1 (en) * 1980-08-13 1982-04-01 Albert Barcelona Malmedy Bakery transfer machine - with verticaldless conveyors for unloading and loading rack trolleys
DE4333906A1 (en) * 1993-10-05 1995-04-06 Seemi Method and apparatus for the palletisation of tubular portions of paper or the like

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DE2051909A1 (en) * 1970-10-22 1971-10-14
DE3030617A1 (en) * 1980-08-13 1982-04-01 Albert Barcelona Malmedy Bakery transfer machine - with verticaldless conveyors for unloading and loading rack trolleys
DE4333906A1 (en) * 1993-10-05 1995-04-06 Seemi Method and apparatus for the palletisation of tubular portions of paper or the like

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108238450A (en) * 2018-01-26 2018-07-03 陕西猕林果业有限公司 A kind of robot palletizer easy to remove

Also Published As

Publication number Publication date
FR2754803B1 (en) 1999-02-12
FR2754803A1 (en) 1998-04-24

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