FR2953502A1 - Pressureless and first in and first out accumulation table for transferring objects, has two parallel conveyors connected by truck allowing transfer of objects, where truck is integrated to endless belt - Google Patents
Pressureless and first in and first out accumulation table for transferring objects, has two parallel conveyors connected by truck allowing transfer of objects, where truck is integrated to endless belt Download PDFInfo
- Publication number
- FR2953502A1 FR2953502A1 FR0958636A FR0958636A FR2953502A1 FR 2953502 A1 FR2953502 A1 FR 2953502A1 FR 0958636 A FR0958636 A FR 0958636A FR 0958636 A FR0958636 A FR 0958636A FR 2953502 A1 FR2953502 A1 FR 2953502A1
- Authority
- FR
- France
- Prior art keywords
- endless belt
- accumulation table
- objects
- conveyors
- transfer
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
- 238000009825 accumulation Methods 0.000 title claims description 31
- 238000006073 displacement reaction Methods 0.000 claims description 6
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000001627 detrimental effect Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/34—Devices for discharging articles or materials from conveyor
- B65G47/46—Devices for discharging articles or materials from conveyor and distributing, e.g. automatically, to desired points
- B65G47/51—Devices for discharging articles or materials from conveyor and distributing, e.g. automatically, to desired points according to unprogrammed signals, e.g. influenced by supply situation at destination
- B65G47/5104—Devices for discharging articles or materials from conveyor and distributing, e.g. automatically, to desired points according to unprogrammed signals, e.g. influenced by supply situation at destination for articles
- B65G47/5109—Devices for discharging articles or materials from conveyor and distributing, e.g. automatically, to desired points according to unprogrammed signals, e.g. influenced by supply situation at destination for articles first In - First Out systems: FIFO
- B65G47/5113—Devices for discharging articles or materials from conveyor and distributing, e.g. automatically, to desired points according to unprogrammed signals, e.g. influenced by supply situation at destination for articles first In - First Out systems: FIFO using endless conveyors
- B65G47/5118—Devices for discharging articles or materials from conveyor and distributing, e.g. automatically, to desired points according to unprogrammed signals, e.g. influenced by supply situation at destination for articles first In - First Out systems: FIFO using endless conveyors with variable accumulation capacity
- B65G47/5131—Devices for discharging articles or materials from conveyor and distributing, e.g. automatically, to desired points according to unprogrammed signals, e.g. influenced by supply situation at destination for articles first In - First Out systems: FIFO using endless conveyors with variable accumulation capacity by relative displacement between conveyors or conveyor parts and bridging means therebetween
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Attitude Control For Articles On Conveyors (AREA)
Abstract
Description
La présente invention a pour objet, dans le domaine du transport d'objets, une table d'accumulation sans pression, de type FIFO, c'est-à-dire premier entré/premier sorti. Les tables d'accumulation sont disposées sur le trajet emprunté par des objets en transfert d'un poste de traitement vers un autre et sont destinées à contrôler le flux des objets, en constituant un stock tampon susceptible d'évoluer en fonction de variations de la cadence aussi bien en amont qu'en aval. Une telle table d'accumulation, dans sa version la plus aboutie, comprend deux convoyeurs parallèles entraînés dans des sens inverses, reliés par des moyens permettant le transfert des objets d'un convoyeur à l'autre, lesdits moyens de transfert étant susceptibles d'être déplacés parallèlement auxdits convoyeurs dans un sens ou dans l'autre. Le déplacement des moyens de transfert permet, selon le sens de leur déplacement, d'accroître ou de réduire le chemin que doit parcourir chacun des objets, et par conséquent d'accroître ou de réduire le nombre d'objets stockés. Le moyen de transfert peut consister en un chariot mobile entre les deux convoyeurs, et muni d'une bande motorisée permettant de faire passer les objets d'un convoyeur à l'autre. Une telle table d'accumulation présente de nombreux avantages, mais également des inconvénients, non pas liés à son fonctionnement mais à son utilisation. The object of the present invention is, in the field of object transport, a pressure-free accumulation table of FIFO type, that is to say first-in / first-out type. Accumulation tables are arranged on the path taken by objects in transfer from one treatment station to another and are intended to control the flow of objects, constituting a buffer stock that can evolve as a function of variations in the pace both upstream and downstream. Such an accumulation table, in its most successful version, comprises two parallel conveyors driven in opposite directions, connected by means allowing the transfer of objects from one conveyor to the other, said transfer means being capable of be moved parallel to said conveyors in one direction or the other. The displacement of the transfer means makes it possible, depending on the direction of their movement, to increase or reduce the path that each object must traverse, and consequently to increase or reduce the number of objects stored. The transfer means may consist of a carriage movable between the two conveyors, and provided with a motorized strip for moving the objects from one conveyor to another. Such an accumulation table has many advantages, but also disadvantages, not related to its operation but to its use.
En effet, une table d'accumulation comporte de nombreux éléments en mouvement les uns par rapport aux autres, à savoir les deux convoyeurs l'un par rapport à l'autre et chacun par rapport au châssis qui les porte, le chariot mobile par rapport à chacun des deux convoyeurs et au châssis qui le porte, les moyens de transfert par rapport au chariot mobile. Chacun de ces mouvements relatifs sont susceptibles de générer des risques d'accidents, aussi il est obligatoire, pour des raisons de sécurité, de contrôler, voire d'interdire, l'accès aux abords d'une telle table d'accumulation. Indeed, an accumulation table has many elements moving relative to each other, namely the two conveyors relative to each other and each relative to the frame that carries them, the carriage relative to each of the two conveyors and the frame that carries it, the transfer means relative to the movable carriage. Each of these relative movements are likely to generate risks of accidents, so it is mandatory, for security reasons, to control or prohibit access to the vicinity of such an accumulation table.
Aussi, cela implique que certaines interventions ne peuvent être réalisées qu'après avoir stopper le fonctionnement de la table d'accumulation et donc de l'installation complète, ce qui est préjudiciable à l'ensemble du processus. La présente invention a pour but de proposer une table d'accumulation permettant de remédier à ces divers 5 inconvénients. La table d'accumulation selon l'invention est une table d'accumulation sans pression, de type FIFO, c'est-à-dire premier entré/premier sorti, disposée sur le trajet emprunté par des objets en transfert d'un poste de traitement vers un autre en 10 vue d'un contrôle du flux par la constitution d'un stock tampon susceptible d'évoluer en fonction de variations de la cadence aussi bien en amont qu'en aval, et comprenant deux convoyeurs parallèles entraînés dans des sens inverses, reliés par des moyens permettant le transfert des objets d'un convoyeur à 15 l'autre, lesdits moyens de transfert étant susceptibles d'être déplacés parallèlement auxdits convoyeurs dans un sens ou dans l'autre, et il se caractérise essentiellement en ce qu'il comporte une bande sans fin tendue entre deux rouleaux, intercalée entre lesdits deux convoyeurs, dont le brin supérieur 20 s'étend parallèlement aux brins supérieurs de ces derniers, et occupe tout l'espace qui sépare lesdits deux brins supérieurs, et en ce que lesdits moyens de transfert sont solidaires de ladite bande sans fin. De manière avantageuse, la bande sans fin constitue un 25 carter qui couvre l'espace dédié aux mécanismes, en sorte de ne pas nécessiter d'interdire l'accès aux abords la table d'accumulation. Selon un premier mode de réalisation particulier de la table d'accumulation selon l'invention, elle comporte des moyens 30 d'entraînement en translation de la bande sans fin en sorte d'entraîner, indirectement, le déplacement des moyens de transfert. Selon une caractéristique additionnelle du premier mode de réalisation de la table d'accumulation selon l'invention, l'un 35 des deux rouleaux est mû en rotation dans un sens ou dans l'autre, en sorte d'entraîner ladite bande sans fin en translation. Selon une caractéristique additionnelle du premier mode de réalisation de la table d'accumulation selon l'invention, la bande sans fin est entraînée en translation par un troisième rouleau. Selon un second mode de réalisation particulier de la table d'accumulation selon l'invention, la bande sans fin est montée libre en translation sur les rouleaux, tandis que les moyens de transfert sont associés à des moyens d'entraînement conçus aptes à déplacer lesdits moyens de transferts et, indirectement, ladite bande sans fin Selon une caractéristique additionnelle du second mode de réalisation de la table d'accumulation selon l'invention, elle comporte une crémaillère qui s'étend longitudinalement sous le brin supérieur de la bande sans fin, et sur laquelle s'engrène le pignon d'un moyen moteur solidaire des moyens de transfert. Les avantages et les caractéristiques de la table d'accumulation selon l'invention, ressortiront plus clairement de la description qui suit et qui se rapporte au dessin annexé, lequel en représente plusieurs modes de réalisation non limitatifs. Dans le dessin annexé : - la figure 1 représente une vue schématique en plan d'une 25 table d'accumulation selon l'invention. - la figure 2 représente une vue schématique en plan de la même table d'accumulation dans une configuration différente d'utilisation. - la figure 3 représente une vue schématique partielle en 30 élévation d'un premier mode de réalisation de la même table. - la figure 4 représente une vue schématique partielle en élévation d'une variante du même premier mode de réalisation de la même table. - la figure 5 représente une vue schématique partielle en 35 élévation d'un second mode de réalisation de la même table. Also, this implies that some interventions can be performed only after stopping the operation of the accumulation table and thus the complete installation, which is detrimental to the entire process. The present invention aims to provide an accumulation table to overcome these various disadvantages. The accumulation table according to the invention is a pressure-free accumulation table of FIFO type, that is to say first-in / first-out, disposed on the path taken by objects in transfer from a control station. processing to another in order to control the flow by the constitution of a buffer stock which can evolve according to variations of the rate both upstream and downstream, and comprising two parallel conveyors driven in directions reverse, connected by means allowing the transfer of objects from one conveyor to the other, said transfer means being movable parallel to said conveyors in one direction or the other, and is essentially characterized in that it comprises an endless belt stretched between two rollers, interposed between said two conveyors, whose upper run 20 extends parallel to the upper strands of the latter, and occupies all the space between said two strands s, and in that said transfer means are integral with said endless band. Advantageously, the endless belt constitutes a casing which covers the space dedicated to the mechanisms, so as not to require to prohibit access to the surroundings of the accumulation table. According to a first particular embodiment of the accumulation table according to the invention, it comprises means 30 for driving in translation the endless belt so as to cause, indirectly, the displacement of the transfer means. According to an additional feature of the first embodiment of the accumulation table according to the invention, one of the two rollers is rotated in one direction or the other, so as to drive said endless belt into translation. According to an additional feature of the first embodiment of the accumulation table according to the invention, the endless belt is driven in translation by a third roller. According to a second particular embodiment of the accumulation table according to the invention, the endless belt is mounted free in translation on the rollers, while the transfer means are associated with drive means designed able to move said transfer means and, indirectly, said endless band According to an additional feature of the second embodiment of the accumulation table according to the invention, it comprises a rack which extends longitudinally under the upper end of the endless belt, and on which the pinion of a motor means integral with the transfer means meshes. The advantages and characteristics of the accumulation table according to the invention will become more clearly apparent from the description which follows and which refers to the appended drawing, which represents several non-limiting embodiments thereof. In the accompanying drawing: - Figure 1 shows a schematic plan view of an accumulation table according to the invention. - Figure 2 shows a schematic plan view of the same accumulation table in a different configuration of use. FIG. 3 represents a partial schematic view in elevation of a first embodiment of the same table. - Figure 4 shows a partial schematic elevational view of a variant of the same first embodiment of the same table. FIG. 5 represents a partial schematic elevational view of a second embodiment of the same table.
En référence aux figures 1 et 2, on peut voir qu'une table d'accumulation selon l'invention comporte, de manière connue, d'une part deux convoyeurs parallèles 1 et 2, entraînés en sens inverses respectivement E et S, et d'autre part un chariot 3 conçu apte à se déplacer entre les convoyeurs 1 et 2, parallèlement à ceux-ci, et comprenant des moyens de transfert 30, en l'occurrence un convoyeur en boucle fermée 31, qui permet d'assurer le passage du convoyeur 1 au convoyeur 2. En fonctionnement les objets B à transférer arrivent sur le convoyeur 1 et repartent par le convoyeur 2 en passant par le convoyeur en boucle fermée 31. Afin d'absorber des différences de cadence, le chariot 3 peut se déplacer entre les convoyeurs 1 et 2, en sorte d'allonger ou de raccourcir le chemin que les objets B doivent parcourir et ainsi constituer un stock tampon. With reference to FIGS. 1 and 2, it can be seen that an accumulation table according to the invention comprises, in known manner, on the one hand two parallel conveyors 1 and 2, driven in opposite directions respectively E and S, and on the other hand a carriage 3 designed adapted to move between the conveyors 1 and 2, parallel thereto, and comprising transfer means 30, in this case a closed loop conveyor 31, which ensures the passage from the conveyor 1 to the conveyor 2. In operation, the objects B to be transferred arrive on the conveyor 1 and leave again via the conveyor 2 via the closed-loop conveyor 31. In order to absorb differences in cadence, the carriage 3 can move between the conveyors 1 and 2, so as to lengthen or shorten the path that the objects B must travel and thus constitute a buffer stock.
Selon l'invention, et comme cela est visible également sur les figures 3, 4 et 5, la table d'accumulation comporte une bande sans fin 4, intercalée entre les deux convoyeurs 1 et 2, et tendue entre deux rouleaux 40 et 41, et dont le brin supérieur 42 d'une part est parallèle et de préférence dans le même plan que les brins supérieurs 10 et 20 des convoyeurs respectivement 1 et 2, d'autre part est d'une largeur permettant d'occuper tout l'espace qui sépare ces brins supérieurs 10 et 20, et d'autre part encore est solidaire du chariot 3. Sur la figure 3, dans un premier mode de réalisation de l'invention, la bande sans fin 4 est entraînée en transfert dans un sens ou dans l'autre par la rotation, respectivement dans un sens ou dans l'autre, du rouleau 41 au travers d'une motorisation 43, et le déplacement de la bande sans fin 4 génère le déplacement du chariot 3. According to the invention, and as can also be seen in FIGS. 3, 4 and 5, the accumulation table comprises an endless belt 4, interposed between the two conveyors 1 and 2, and stretched between two rollers 40 and 41, and whose upper strand 42 on the one hand is parallel and preferably in the same plane as the upper strands 10 and 20 of the conveyors respectively 1 and 2, on the other hand is of a width to occupy all the space separating these upper strands 10 and 20, and secondly is integral with the carriage 3. In Figure 3, in a first embodiment of the invention, the endless belt 4 is driven in transfer in one direction or in the other by the rotation, respectively in one direction or the other, of the roller 41 through a motor 43, and the displacement of the endless belt 4 generates the displacement of the carriage 3.
Sur la figure 4 on peut voir, dans une variante du premier mode de réalisation, que la table d'accumulation comporte un troisième rouleau 44 sur lequel passe le brin inférieur 45 de la bande sans fin 4. Le brin inférieur 45 est maintenu en contact étroit avec le rouleau 44 au travers de rouleaux tendeurs 46, tandis qu'il est mû en rotation par un moyen moteur 47, en sorte d'entraîner la bande sans fin 4. In FIG. 4 it can be seen, in a variant of the first embodiment, that the accumulation table comprises a third roller 44 on which the lower run 45 of the endless belt 4 passes. The lower run 45 is kept in contact narrow with the roller 44 through tension rollers 46, while it is rotated by a motor means 47, so as to drive the endless belt 4.
On notera que d'autres variantes sont réalisables, le but étant d'entraîner la bande sans fin 4 en déplacement, en sorte d'entraîner indirectement le chariot 3. Sur la figure 5, dans un second mode de réalisation de l'invention, les rouleaux 40 et 41 sont montés en rotation libre, tandis que le chariot 3 est muni d'un moyen moteur 32 apte à entraîner en rotation, dans un sens ou dans l'autre, un pignon 33 engrené sur une crémaillère 5 s'étendant entre les rouleaux 40 et 41, sous le brin supérieur 42 de la bande sans fin 4. Ainsi, le chariot 3 peut se déplacer longitudinalement entre les convoyeurs 1 et 2, et il entraîne avec lui la bande sans fin 4, les rouleaux 40 et 41 étant en rotation libre. Quel que soit le mode de réalisation considéré, la bande sans fin constitue un carter de protection qui isole tous les éléments en mouvement de la table d'accumulation, en sorte que cela limite la mise en place d'accessoire de protection, et autorise certaines interventions sur la table d'accumulation sans avoir à interrompre son fonctionnement. Note that other variants are feasible, the purpose being to drive the endless belt 4 in displacement, so as to indirectly drive the carriage 3. In Figure 5, in a second embodiment of the invention, the rollers 40 and 41 are mounted in free rotation, while the carriage 3 is provided with a motor means 32 adapted to drive in rotation, in one direction or the other, a pinion 33 meshing on a rack 5 extending between the rollers 40 and 41, under the upper end 42 of the endless belt 4. Thus, the carriage 3 can move longitudinally between the conveyors 1 and 2, and it carries with it the endless belt 4, the rollers 40 and 41 being in free rotation. Whatever the embodiment considered, the endless belt constitutes a protective casing which isolates all the moving elements from the accumulation table, so that this limits the installation of protective accessory, and allows certain interventions on the accumulation table without having to interrupt its operation.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0958636A FR2953502B1 (en) | 2009-12-03 | 2009-12-03 | ACCUMULATION TABLE |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0958636A FR2953502B1 (en) | 2009-12-03 | 2009-12-03 | ACCUMULATION TABLE |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2953502A1 true FR2953502A1 (en) | 2011-06-10 |
| FR2953502B1 FR2953502B1 (en) | 2012-05-25 |
Family
ID=42416673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR0958636A Active FR2953502B1 (en) | 2009-12-03 | 2009-12-03 | ACCUMULATION TABLE |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2953502B1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2412650A1 (en) * | 2010-07-30 | 2012-02-01 | Krones AG | Storage device for containers and method for storing containers |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2766803A1 (en) * | 1997-07-31 | 1999-02-05 | Diaz Jose Arriaza | Accumulator for confectionery articles on conveyor |
| WO2002032797A1 (en) * | 2000-10-17 | 2002-04-25 | Hartness International, Inc. | Device for transferring articles between oppositely running conveyors |
| DE202004012848U1 (en) * | 2004-08-17 | 2005-03-31 | Krones Ag | Conveyor system for transporting empty plastic bottles comprises two conveyor belts moving in opposite directions, chain conveyor transferring bottles between belts and guide rails preventing bottles from falling over |
| US20050263374A1 (en) * | 2004-05-25 | 2005-12-01 | Hartness International, Inc. | Apparatus for diverting a stream of articles |
| JP2006340861A (en) * | 2005-06-08 | 2006-12-21 | Ishino Seisakusho Co Ltd | Bypass conveyer in circulating conveyance route |
| FR2887533A1 (en) * | 2005-06-28 | 2006-12-29 | Netra Systems Sa | ACCUMULATION TABLE COMPRISING TWO TRANSPORT SURFACES DRAWN IN OPPOSITE DIRECTIONS AND INDEPENDENT TRANSFER MEANS |
| WO2008026478A1 (en) * | 2006-08-28 | 2008-03-06 | D.I. Engineering Corporation | Conveyance device |
-
2009
- 2009-12-03 FR FR0958636A patent/FR2953502B1/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2766803A1 (en) * | 1997-07-31 | 1999-02-05 | Diaz Jose Arriaza | Accumulator for confectionery articles on conveyor |
| WO2002032797A1 (en) * | 2000-10-17 | 2002-04-25 | Hartness International, Inc. | Device for transferring articles between oppositely running conveyors |
| US20050263374A1 (en) * | 2004-05-25 | 2005-12-01 | Hartness International, Inc. | Apparatus for diverting a stream of articles |
| DE202004012848U1 (en) * | 2004-08-17 | 2005-03-31 | Krones Ag | Conveyor system for transporting empty plastic bottles comprises two conveyor belts moving in opposite directions, chain conveyor transferring bottles between belts and guide rails preventing bottles from falling over |
| JP2006340861A (en) * | 2005-06-08 | 2006-12-21 | Ishino Seisakusho Co Ltd | Bypass conveyer in circulating conveyance route |
| FR2887533A1 (en) * | 2005-06-28 | 2006-12-29 | Netra Systems Sa | ACCUMULATION TABLE COMPRISING TWO TRANSPORT SURFACES DRAWN IN OPPOSITE DIRECTIONS AND INDEPENDENT TRANSFER MEANS |
| WO2008026478A1 (en) * | 2006-08-28 | 2008-03-06 | D.I. Engineering Corporation | Conveyance device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2412650A1 (en) * | 2010-07-30 | 2012-02-01 | Krones AG | Storage device for containers and method for storing containers |
| DE102011001532A1 (en) * | 2010-07-30 | 2012-02-02 | Krones Aktiengesellschaft | Storage device for containers and method for storing containers |
| EP2623441A1 (en) * | 2010-07-30 | 2013-08-07 | Krones AG | Storage device for containers and method for storing containers |
| US8770377B2 (en) | 2010-07-30 | 2014-07-08 | Krones Ag | Buffer means for containers and method for buffering containers |
| US9181029B2 (en) | 2010-07-30 | 2015-11-10 | Krones Ag | Buffer means for containers and method for buffering containers |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2953502B1 (en) | 2012-05-25 |
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