EP0619259A1 - Sheet collating device with superposed carriers - Google Patents
Sheet collating device with superposed carriers Download PDFInfo
- Publication number
- EP0619259A1 EP0619259A1 EP94104680A EP94104680A EP0619259A1 EP 0619259 A1 EP0619259 A1 EP 0619259A1 EP 94104680 A EP94104680 A EP 94104680A EP 94104680 A EP94104680 A EP 94104680A EP 0619259 A1 EP0619259 A1 EP 0619259A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sheet
- ribbon
- stack
- roller
- conveyor
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H3/00—Separating articles from piles
- B65H3/08—Separating articles from piles using pneumatic force
- B65H3/12—Suction bands, belts, or tables moving relatively to the pile
- B65H3/124—Suction bands or belts
- B65H3/128—Suction bands or belts separating from the top of pile
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H39/00—Associating, collating, or gathering articles or webs
- B65H39/02—Associating,collating or gathering articles from several sources
- B65H39/04—Associating,collating or gathering articles from several sources from piles
- B65H39/042—Associating,collating or gathering articles from several sources from piles the piles being disposed in superposed carriers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/10—Handled articles or webs
- B65H2701/17—Nature of material
- B65H2701/176—Cardboard
Definitions
- the present invention relates to a sheet collator, in particular a sheet collator comprising a frame, a plurality of boxes superimposed in this frame for loading stacks of paper, each box being equipped with a device for ejecting individual sheets and a transfer device, and a vertical conveyor adjacent to the case transfer devices for receiving, via the transfer devices, sheets ejected from their case and for routing them to an assembly station.
- the device for ejecting each box comprises a pivoting arm which has a suction head at its end, in the vicinity of the front edge of the sheets.
- the suction head approaches the face of the top sheet to aspirate it.
- the suction head with the front edge of the sheet is raised by pivoting the lever, and the front edge of the sheet is directed into the slot formed between a roller driven in rotation and a pinch roller.
- the sheet is taken between the roller and the roller, it is advanced towards the vertical conveyor and deflected parallel to it to be then transported to an assembly station.
- the range of paper that can be handled in such a sheet collator is quite limited since the sheets must be rigid enough not to bend too much when they are lifted by one or more suction heads, but flexible enough to be '' offer little resistance to bending around their transverse axis.
- the ejection device comprises at least one endless perforated ribbon mounted on two spaced return rollers and a vacuum chamber surrounded by the ribbon and having air passage openings distributed in the bottom wall which is adjacent to the internal face of the lower strand of the ribbon, the opposite face of the lower arm of the ribbon being located opposite the upper sheet of the stack parallel to the latter and at a distance essentially kept constant by a movable plate on which the battery.
- the perforated tape performs a triple function: first, it separates, by suction, the top sheet from the stack.
- the sheet applying essentially over the entire length of the lower strand of the ribbon it is held in a horizontal position before being presented to the transfer device responsible for passing it over the vertical conveyor.
- the third function is to advance the sheet, still in a horizontal position, towards the transfer device.
- the trajectory of the sheet consists of a first phase in which it is lifted while remaining in a horizontal position, at least in its part presented subsequently to the transfer device, a second phase in which it is advanced towards the conveyor vertical while maintaining its horizontal position, a third phase of deflection and deflection to be aligned with the vertical conveyor, and a fourth phase of evacuation by the conveyor in a vertical plane.
- this trajectory is more direct and involves less bending of the sheet, especially during the critical phase of separation of the upper sheet and its passage to the transfer device.
- This improvement has made it possible to increase amazing the speed of the collator, for a paper of the same quality given.
- the range of papers which can be handled in the collator could be greatly extended compared to known collators. Indeed, we manage to handle fairly rigid paper or even cardboard.
- Another surprising advantage of the collator consists in being able to handle papers of variable width and even papers whose width considerably exceeds the width of the perforated tape.
- the collator according to the invention therefore has great flexibility with regard to the quality and dimensions of the papers, a high yield and a small footprint thanks to the superposition of the boxes.
- the transfer device is preferably produced by a drive roller, placed in permanent rotation, and at least one pinching roller, the slot formed between the roller and the roller being essentially located in the plane of the lower strand of the perforated tape.
- the periphery of the drive roller is preferably adjacent to a vertical conveyor conveyor belt whose face opposite the drive roller is supported on a support roller, a deflection element being associated with the periphery of the drive roller to direct the front edge of a sheet advanced by the transport roller, in a slot formed between the latter and the belt of the conveyor.
- the ejection device, the transfer device and the conveyor to be arranged such that a sheet, separated from its stack and adhering by suction to the underside of the ribbon, advanced by the ribbon to the transfer device, supported by the latter and transferred to the conveyor, still adheres to the ribbon at least by its rear edge at the time of its assumption by the conveyor.
- an air flow is directed into a space created between the underside of the perforated tape and the face of the top sheet of the stack sucked against the tape, by at least one annular spacer element which extends parallel to the ribbon and whose thickness is greater than that of the ribbon, so as to introduce a local deformation of the sheet which is oriented in the longitudinal direction of the latter.
- the spacer element consists of an endless belt engaged around the two deflection rollers.
- the sheet collator shown schematically in FIG. 1 comprises a frame of a generally prismatic shape.
- the frame 10 comprises a base 12, mounted on rollers, an upright 14 and a vertical wall 16, the upper ends of the upright 14 and the wall 16 being joined by a cover 18.
- the base 12 has a rectangular shape
- the cover 18 has a polygonal shape, derived from a rectangle one side of which is cut, forming an oblique side 18a.
- a series of superimposed boxes 20 for loading stacks of paper are identical and each have a vertically movable plate 22 on which the stacks of paper rest.
- the plates 22 project laterally from the space below the cover 18, possibly exceeding the projection of the base 12.
- the boxes 20 are therefore freely accessible by at least two sides 20a and 20b of the collator.
- the base 12 carries a housing 24 in which various control and drive mechanisms of the assembler are arranged.
- a vertical conveyor 26 In the space between the upright 14 and the wall 16, on the side opposite to the boxes 20, is arranged a vertical conveyor 26 whose function is to evacuate the sheets ejected from their boxes 20, to an assembly station which will not be not described since it is not part of the invention.
- Each box 20 includes a device for ejecting individual sheets, which will now be described with reference to FIG. 2.
- a probe 30 is provided for detecting the level of the top sheet of the stack 28 and for generating a control signal as soon as the level of the top sheet has decreased by a predetermined value.
- This control signal triggers the operation of a lifting mechanism, not shown, which lifts the plate 22 in response to the control signal, so as to keep the level of the top sheet of the stack 28 essentially constant.
- each sheet of the stack 28 is supported on a fixed stop 32 which extends to a height slightly greater than the level of the upper sheet of the stack 28.
- each perforated tape 34 is situated in a plane parallel to that of the upper sheet of the stack 28, and at a substantially constant distance of approximately 10 mm.
- One or more nozzles 40 are provided for sending an air flow into the space located below the lower strand 34a of the perforated tapes 34, passing over the upper edge of the stop 32.
- lateral orifices and / or front 42 allow air to be blown on the edge of the stack 28 to cause primary separation of the sheets.
- an endless belt with a round section 44 is also mounted on the rollers 36, 38 in the middle of the perforated ribbons 34.
- the diameter of the section of this belt 44 is greater than the thickness of the perforated ribbons 34, as also appears from FIG. 3.
- a vacuum chamber 46 is formed by a box 48 housed in the space surrounded by the perforated ribbons 34.
- the box 48 the interior space of which is selectively placed in communication with a suction device, present on its face adjacent to the lower strand 30a of the perforated ribbons 34, air passage openings suitably distributed to allow the suction of the upper sheet through the openings of the perforated ribbons 34 and the slots existing between their adjacent edges.
- the vertical conveyor comprises one or more endless belts 50 mounted on two deflection rollers 52, 54 whose axes are spaced in a vertical plane and one of which, preferably 54, is motor.
- a transfer device consisting of a drive roller 56 put in permanent rotation and a pinch roller 58 biased by a spring in contact with the periphery of the roller d drive 56.
- the belt 50 is tangentially in contact with the periphery of each drive roller 56, and the opposite face of the belt is supported on a support roller 60.
- Guide plates 62, 64 are provided upstream of the drive roller 56 to ensure correct passage of the front edge of a sheet advanced by the perforated ribbons 34, in the slot formed between the periphery of the roller 54 and that of the pinch roller 58.
- a deflection plate 66 is provided downstream of the drive roller 56 to ensure the deflection of the front edge of a sheet advanced by the drive roller 56, towards the vertical path of the conveyor 26.
- an appropriate number of boxes 20 are loaded with stacks of paper.
- the assembler works in successive assembly cycles, according to a program managed by a control unit which is not part of the invention and which will therefore not be described in detail.
- the trays 22 of the boxes loaded with batteries are mounted at the level necessary so that the upper sheet of the stack has a predetermined distance, of approximately 10 mm, for example, from the lower strand 34a of the perforated ribbons 34.
- the vacuum chamber 46 is placed in communication with a suction device. Simultaneously, blowers supply the nozzles 40 and the openings 42 to facilitate the separation of the sheets.
- the upper sheet 28a of the stack 28 (FIG.
- the ejection device ensures very reliable individualization of the sheets of the stack 28.
- the upper sheet thus individualized is applied against the opposite face of the lower strand 34a of the perforated ribbons 34, and is therefore situated in a horizontal plane before being presented to the slot formed between the drive roller 56 and the pinching roller. 58, this slot being essentially in the same horizontal plane.
- the sheet is positively supported and advanced by the transfer device constituted by the roller 56 and the roller 58. Then, the front edge of the sheet is inclined downward. by the deflection plate 66 and meets the belt 50, to then be engaged in the slot formed between the latter and the periphery of the roller 56.
- the sheet is then taken up by the conveyor 26 to be brought to the assembly station.
- the communication of the vacuum chamber 46 with the suction device is stopped, so that the suction ends.
- the drive of the perforated ribbons 34 is stopped to prevent the next sheet from being prematurely advanced.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Delivering By Means Of Belts And Rollers (AREA)
- Sheets, Magazines, And Separation Thereof (AREA)
- Collation Of Sheets And Webs (AREA)
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
- Inert Electrodes (AREA)
- Absorbent Articles And Supports Therefor (AREA)
- Control And Other Processes For Unpacking Of Materials (AREA)
- Preliminary Treatment Of Fibers (AREA)
Abstract
Description
La présente invention concerne une assembleuse de feuilles, en particulier une assembleuse de feuilles comprenant un bâti, une pluralité de cases superposées dans ce bâti pour le chargement de piles de papier, chace case étant équipée d'un dispositif d'éjection de feuilles individuelles et d'un dispositif de transfert, et un convoyeur vertical adjacent aux dispositifs de transfert des cases pour recevoir, par l'intermédiaire des dispositifs de transfert, des feuilles éjectées de leur case et pour les acheminer vers un poste d'assemblage.The present invention relates to a sheet collator, in particular a sheet collator comprising a frame, a plurality of boxes superimposed in this frame for loading stacks of paper, each box being equipped with a device for ejecting individual sheets and a transfer device, and a vertical conveyor adjacent to the case transfer devices for receiving, via the transfer devices, sheets ejected from their case and for routing them to an assembly station.
Dans les assembleuses connues de ce genre, le dispositif d'éjection de chaque case comprend un bras pivotant qui présente une tête d'aspiration à son extrémité, au voisinage du bord avant des feuilles. Dans chaque cycle d'éjection, la tête d'aspiration s'approche de la face de la feuille supérieure pour l'aspirer. Ensuite, la tête d'aspiration avec le bord avant de la feuille est soulevée par pivotement du levier, et le bord avant de la feuille est dirigé dans la fente formée entre un rouleau entraîné en rotation et un galet de pinçage. Dès que la feuille est prise entre le rouleau et le galet, elle est avancée vers le convoyeur vertical et défléchie parallèlement à celui-ci pour être ensuite transportée vers une station d'assemblage.In known assemblers of this kind, the device for ejecting each box comprises a pivoting arm which has a suction head at its end, in the vicinity of the front edge of the sheets. In each ejection cycle, the suction head approaches the face of the top sheet to aspirate it. Then, the suction head with the front edge of the sheet is raised by pivoting the lever, and the front edge of the sheet is directed into the slot formed between a roller driven in rotation and a pinch roller. As soon as the sheet is taken between the roller and the roller, it is advanced towards the vertical conveyor and deflected parallel to it to be then transported to an assembly station.
Les assembleuses verticales, dans lesquelles les cases sont donc superposées dans le bâti, sont avantageuses puisqu'elles occupent peu de surface dans un local. Le passage de chaque feuille de la position horizontale ou légèrement inclinée dans sa case, vers la position verticale sur le convoyeur implique toutefois un mouvement complexe selon une trajectoire qui comporte un point d'inflexion suivi par un renvoi d'un angle qui peut dépasser 90°. La feuille est donc fortement sollicitée en courbure autour de son axe transversal. Pour ne pas mettre en cause la fiabilité de la machine malgré ces difficultés, on est amené à en modérer la cadence. Par ailleurs, la gamme de papier qui peut être manipulée dans une telle assembleuse de feuilles est assez limitée puisque les feuilles doivent être suffisamment rigides pour ne pas trop fléchir lors de leur soulèvement par une ou plusieurs têtes d'aspiration, mais suffisamment souples pour n'offrir que peu de résistance à la flexion autour de leur axe transversal.Vertical assemblers, in which the boxes are therefore superimposed in the frame, are advantageous since they occupy little space in a room. Passage of each sheet from the horizontal position or slightly inclined in its box, towards the vertical position on the conveyor however implies a complex movement along a trajectory which includes an inflection point followed by a return of an angle which can exceed 90 °. The sheet is therefore highly stressed in curvature around its transverse axis. In order not to jeopardize the reliability of the machine despite these difficulties, it is necessary to moderate the rate. Furthermore, the range of paper that can be handled in such a sheet collator is quite limited since the sheets must be rigid enough not to bend too much when they are lifted by one or more suction heads, but flexible enough to be '' offer little resistance to bending around their transverse axis.
Dans l'assembleuse de feuilles suivant la présente invention, ces difficultés sont évitées dans une large mesure. Suivant l'invention, le dispositif d'éjection comprend au moins un ruban perforé sans fin monté sur deux rouleaux de renvoi espacés et une chambre à dépression entourée par le ruban et ayant des ouvertures de passage d'air distribuées dans la paroi inférieure qui est adjacente à la face interne du brin inférieur du ruban, la face opposée du bras inférieur du ruban étant située en regard de la feuille supérieure de la pile parallèlement à celle-ci et à une distance essentiellement maintenue constante par un plateau mobile sur lequel repose la pile. Le ruban perforé assume une fonction triple: tout d'abord, il sépare, par aspiration, la feuille supérieure de la pile. Ensuite, la feuille s'appliquant essentiellement sur toute la longueur du brin inférieur du ruban, elle est maintenue dans une position horizontale avant d'être présentée au dispositif de transfert chargé de la faire passer sur le convoyeur vertical. La troisième fonction consiste à avancer la feuille, toujours en position horizontale, vers le dispositif de transfert. Ainsi, la trajectoire de la feuille se compose d'une première phase dans laquelle elle est soulevée tout en restant dans une position horizontale, du moins dans sa partie présentée ultérieurement au dispositif de transfert, une deuxième phase dans laquelle elle est avancée vers le convoyeur vertical tout en maintenant sa position horizontale, une troisième phase de déflexion et de renvoi pour être alignée avec le convoyeur vertical, et une quatrième phase d'évacuation par le convoyeur dans un plan vertical. Par rapport aux assembleuses connues, cette trajectoire est plus directe et implique moins de flexions de la feuille, surtout lors de la phase critique de séparation de la feuille supérieure et de son passage au dispositif de transfert. Ce perfectionnement a permis d'augmenter de manière étonnante la cadence de l'assembleuse, pour un papier de même qualité donnée. En outre, la gamme des papiers qui peuvent être manipulés dans l'assembleuse a pu être fortement étendue par rapport aux assembleuses connues. En effet, on parvient à manipuler des papiers assez rigides ou même des cartons. Un autre avantage étonnant de l'assembleuse consiste à pouvoir manipuler des papiers d'une largeur variable et même des papiers dont la largeur dépasse considérablement la largeur du ruban perforé. L'assembleuse suivant l'invention présente donc une grande flexibilité en ce qui concerne la qualité et les dimensions des papiers, un rendement important et un encombrement faible grâce à la superposition des cases.In the sheet collator according to the present invention, these difficulties are largely avoided. According to the invention, the ejection device comprises at least one endless perforated ribbon mounted on two spaced return rollers and a vacuum chamber surrounded by the ribbon and having air passage openings distributed in the bottom wall which is adjacent to the internal face of the lower strand of the ribbon, the opposite face of the lower arm of the ribbon being located opposite the upper sheet of the stack parallel to the latter and at a distance essentially kept constant by a movable plate on which the battery. The perforated tape performs a triple function: first, it separates, by suction, the top sheet from the stack. Then, the sheet applying essentially over the entire length of the lower strand of the ribbon, it is held in a horizontal position before being presented to the transfer device responsible for passing it over the vertical conveyor. The third function is to advance the sheet, still in a horizontal position, towards the transfer device. Thus, the trajectory of the sheet consists of a first phase in which it is lifted while remaining in a horizontal position, at least in its part presented subsequently to the transfer device, a second phase in which it is advanced towards the conveyor vertical while maintaining its horizontal position, a third phase of deflection and deflection to be aligned with the vertical conveyor, and a fourth phase of evacuation by the conveyor in a vertical plane. Compared to known assemblers, this trajectory is more direct and involves less bending of the sheet, especially during the critical phase of separation of the upper sheet and its passage to the transfer device. This improvement has made it possible to increase amazing the speed of the collator, for a paper of the same quality given. In addition, the range of papers which can be handled in the collator could be greatly extended compared to known collators. Indeed, we manage to handle fairly rigid paper or even cardboard. Another surprising advantage of the collator consists in being able to handle papers of variable width and even papers whose width considerably exceeds the width of the perforated tape. The collator according to the invention therefore has great flexibility with regard to the quality and dimensions of the papers, a high yield and a small footprint thanks to the superposition of the boxes.
Le dispositif de transfert est de préférence réalisé par un rouleau d'entraînement, mis en rotation permanente, et au moins un galet de pinçage, la fente formée entre le rouleau et le galet étant essentiellement située dans le plan du brin inférieur du ruban perforé. Ainsi, peu après le décollement du bord avant du ruban perforé, il est engagé par le rouleau d'entraînement et le galet de pinçage. A partir de ce moment, le mouvement de la feuille est positivement contrôlé aussi bien en ce qui concerne sa trajectoire et la synchronisation avec le mouvement des autres feuilles.The transfer device is preferably produced by a drive roller, placed in permanent rotation, and at least one pinching roller, the slot formed between the roller and the roller being essentially located in the plane of the lower strand of the perforated tape. Thus, shortly after the front edge of the perforated tape peels off, it is engaged by the drive roller and the pinching roller. From this moment, the movement of the leaf is positively controlled both with regard to its trajectory and synchronization with the movement of the other leaves.
Pour réduire au minimum le nombre de passages de la feuille d'un mécanisme de transport à un autre, la périphérie du rouleau d'entraînement est de préférence adjacente à une courroie verticale de transport du convoyeur dont la face opposée au rouleau d'entraînement est en appui sur un rouleau de soutien, un élément de déflexion étant associé à la périphérie du rouleau d'entraînement pour diriger le bord avant d'une feuille avancée par le rouleau de transport, dans une fente formée entre celui-ci et la courroie du convoyeur.To minimize the number of times the sheet passes from one conveyor to another, the periphery of the drive roller is preferably adjacent to a vertical conveyor conveyor belt whose face opposite the drive roller is supported on a support roller, a deflection element being associated with the periphery of the drive roller to direct the front edge of a sheet advanced by the transport roller, in a slot formed between the latter and the belt of the conveyor.
Pour minimiser toute tendance de la feuille à dévier latéralement de sa trajectoire, on prévoit, selon une autre particularité de l'invention, que le dispositif d'éjection, le dispositif de transfert et le convoyeur soient agencés de façon telle qu'une feuille, séparée de sa pile et adhérant par aspiration à la face inférieure du ruban, avancée par le ruban vers le dispositif de transfert, prise en charge par celui-ci et transférée vers le convoyeur, adhère encore au ruban au moins par son bord arrière au moment de sa prise en charge par le convoyeur.To minimize any tendency of the sheet to deviate laterally from its trajectory, provision is made, according to another feature of the invention, for the ejection device, the transfer device and the conveyor to be arranged such that a sheet, separated from its stack and adhering by suction to the underside of the ribbon, advanced by the ribbon to the transfer device, supported by the latter and transferred to the conveyor, still adheres to the ribbon at least by its rear edge at the time of its assumption by the conveyor.
L'un des problèmes qu'il faut maîtriser dans une assembleuse de feuilles est celui de la séparation fiable de la feuille supérieure de sa pile. Ce problème se pose notamment lorsqu'on utilise un ruban perforé pour aspirer la feuille puisque le courant d'air montant ainsi créé a tendance à soulever plusieurs feuilles à la fois. Pour pallier cet inconvénient, il est prévu, suivant l'invention, qu'un flux d'air soit dirigé dans un espace créé entre la face inférieure du ruban perforé et la face de la feuille supérieure de la pile aspirée contre le ruban, par au moins un élément annulaire d'écartement qui s'étend parallèlement au ruban et dont l'épaisseur est supérieure à celle du ruban, de manière à introduire une déformation locale de la feuille qui est orientée dans le sens longitudinal de celle-ci. De préférence, l'élément d'écartement est constitué par une courroie sans fin engagée autour des deux rouleaux de renvoi.One of the problems to be mastered in a sheet collator is that of the reliable separation of the top sheet from its stack. This problem arises in particular when a perforated tape is used to suck up the sheet since the rising air flow thus created tends to lift several sheets at the same time. To overcome this drawback, it is provided, according to the invention, that an air flow is directed into a space created between the underside of the perforated tape and the face of the top sheet of the stack sucked against the tape, by at least one annular spacer element which extends parallel to the ribbon and whose thickness is greater than that of the ribbon, so as to introduce a local deformation of the sheet which is oriented in the longitudinal direction of the latter. Preferably, the spacer element consists of an endless belt engaged around the two deflection rollers.
D'autre détails et particularités de l'invention ressortiront de la description suivante, avec référence aux dessins annexés dans lesquels:
- La fig. 1
- montre schématiquement une assembleuse de feuilles ayant des cases superposées;
- la fig. 2
- est une vue schématique, partiellement en coupe, d'un dispositif d'éjection et de transfert de feuilles séparées d'une pile; et
- la fig. 3
- montre schématiquement une particularité du dispositif d'éjection.
- Fig. 1
- schematically shows a sheet collator having overlapping boxes;
- fig. 2
- is a schematic view, partially in section, of a device for ejecting and transferring sheets separated from a stack; and
- fig. 3
- schematically shows a feature of the ejection device.
L'assembleuse de feuilles représentée schématiquement à la fig. 1 comprend un bâti d'une forme généralement prismatique. Le bâti 10 comporte une embase 12, montée sur des rouleaux, un montant 14 et une paroi verticale 16, les extrémités supérieures du montant 14 et de la paroi 16 étant réunies par un couvercle 18. L'embase 12 présente une forme rectangulaire, et le couvercle 18 une forme polygonale, dérivée d'un rectangle dont un côté est coupé, en formant un côté oblique 18a. Dans l'espace situé en dessous de ce côté 18a sont disposées une série de cases superposées 20 pour le chargement de piles de papier. Ces cases 20 sont identiques et comportent chacune un plateau verticalement mobile 22 sur lesquels reposent les piles de papier. Les plateaux 22 font saillie latéralement de l'espace situé en dessous du couvercle 18, en dépassant éventuellement la projection de l'embase 12. Ainsi, les cases 20 sont donc librement accessibles par au moins deux côtés 20a et 20b de l'assembleuse.The sheet collator shown schematically in FIG. 1 comprises a frame of a generally prismatic shape. The
L'embase 12 porte un boîtier 24 dans lequel sont agencés divers mécanismes de commande et d'entraînement de l'assembleuse. Dans l'espace compris entre le montant 14 et la paroi 16, du côté opposé aux cases 20, est agencé un convoyeur vertical 26 dont la fonction consiste à évacuer les feuilles éjectées de leurs cases 20, vers un poste d'assemblage qui ne sera pas décrit puisqu'il ne fait pas partie de l'invention.The
Chaque case 20 comporte un dispositif d'éjection de feuilles individuelles, qui sera maintenant décrit en référence à la fig. 2.Each
On retrouve à la fig. 2 le plateau mobile 22 sur lequel repose une pile de papier 28. Un palpeur 30 est prévu pour détecter le niveau de la feuille supérieure de la pile 28 et pour engendrer un signal de commande dès que le niveau de la feuille supérieure a diminué d'une valeur prédéterminée. Ce signal de commande déclenche le fonctionnement d'un mécanisme de levage, non représenté, qui soulève le plateau 22 en réponse au signal de commande, de manière à maintenir essentiellement constant le niveau de la feuille supérieure de la pile 28.We find in fig. 2 the
Le bord avant de chaque feuille de la pile 28 est en appui sur une butée 32 fixe qui s'étend jusqu'à une hauteur légèrement supérieure au niveau de la feuille supérieure de la pile 28.The front edge of each sheet of the
Plusieurs rubans perforés sans fin 34 sont montés sur deux rouleaux de renvoi 36, 38 dont les axes sont espacés dans un même plan horizontal. Le rouleau 36 est monté fou, et le rouleau 38 est sélectivement entraîné en rotation par l'activation d'un mécanisme d'embrayage disposé à l'intérieur du montant 14, comme schématiquement suggéré à la fig. 1. Le brin inférieur 34a de chaque ruban perforé 34 est situé dans un plan parallèle à celui de la feuille supérieure de la pile 28, et à distance sensiblement constante d'environ 10 mm. Une ou plusieurs tuyères 40 sont prévues pour envoyer un flux d'air dans l'espace situé en dessous du brin inférieur 34a des rubans perforés 34, en passant par dessus l'arête supérieure de la butée 32. Additionnellement, des orifices latéraux et/ou frontaux 42 permettent de souffler de l'air sur la tranche de la pile 28 pour provoquer une séparation primaire des feuilles.Several endless perforated
Comme il ressort de la fig. 3, qui est une vue de détail montrant le plateau mobile 22, le rouleau de renvoi 38 et un nombre total de six rubans perforés 34 disposés parallèlement et à faible distance les uns des autres, une courroie sans fin à section ronde 44 est également montée sur les rouleaux 36, 38 au milieu des rubans perforés 34. Le diamètre de la section de cette courroie 44 est supérieur à l'épaisseur des rubans perforés 34, comme il ressort également de la fig. 3.As shown in fig. 3, which is a detailed view showing the
Une chambre à dépression 46 est formée par un caisson 48 logé dans l'espace entouré par les rubans perforés 34. Le caisson 48, dont l'espace intérieur est sélectivement mis en communication avec un dispositif d'aspiration, présente à sa face adjacente au brin inférieur 30a des rubans perforés 34, des ouvertures de passage d'air distribuées de façon appropriée pour permettre l'aspiration de la feuille supérieure à travers les ouvertures des rubans perforés 34 et les fentes existant entre leurs bords adjacents.A
Le convoyeur vertical comprend une ou plusieurs courroies sans fin 50 montées sur deux rouleaux de renvoi 52, 54 dont les axes sont espacés dans un plan vertical et dont l'un, de préférence 54, est moteur. Dans l'espace compris entre chaque case 20 et le convoyeur 26 est disposé un dispositif de transfert constitué d'un rouleau d'entraînement 56 mis en rotation permanente et un galet de pinçage 58 sollicité par un ressort en contact avec la périphérie du rouleau d'entraînement 56. La courroie 50 est tangentiellement en contact avec la périphérie de chaque rouleau d'entraînement 56, et la face opposée de la courroie est en appui sur un rouleau de soutien 60. Des tôles de guidage 62, 64 sont prévues en amont du rouleau d'entraînement 56 pour assurer un passage correct du bord avant d'une feuille avancée par les rubans perforés 34, dans la fente formée entre la périphérie du rouleau 54 et celle du galet de pinçage 58. Une tôle de déflexion 66 est prévue en aval du rouleau d'entraînement 56 pour assurer la déflexion du bord avant d'une feuille avancée par le rouleau d'entraînement 56, vers le trajet vertical du convoyeur 26.The vertical conveyor comprises one or more
En fonctionnement, un nombre approprié des cases 20 sont chargées de piles de papier. L'assembleuse travaille par cycles successifs d'assemblage, selon un programme géré par une unité de commande qui ne fait partie de l'invention et qui ne sera donc pas décrite en détail. Les plateaux 22 des cases chargées de piles sont montés au niveau nécessaire pour que la feuille supérieure de la pile ait une distance prédéterminée, d'environ 10 mm, par exemple, du brin inférieur 34a des rubans perforés 34. Ensuite, la chambre à dépression 46 est mise en communication avec un disposif d'aspiration. Simultanément, des souffleries alimentent les tuyères 40 et les ouvertures 42 pour faciliter la séparation des feuilles. La feuille supérieure 28a de la pile 28 (fig. 3) est aspirée à travers les ouvertures des rubans perforés 34, se détache de la pile 28 et vient s'appliquer contre la face inférieure du brin 34a des rubans 34. Dans cette position, comme il ressort de la fig. 3, la courroie 44 provoque une déformation locale de la feuille 28a orientée dans le sens longitudinal de celle-ci. Ainsi, un espace se crée entre la face inférieure de la feuille 28a et la face opposée de la feuille suivante 28b de la pile 28, et un flux d'air est soufflé dans cet espace par les tuyères 40. Ce flux d'air provoque une séparation nette entre les feuilles 28a et 28b, dans le sens vertical. Ensuite, lorsque les rouleaux de renvoi 36, 38 sont mis en rotation par l'enclechement d'un embrayage, et la feuille supérieure 28a est avancée en direction du rouleau d'entraînement 56, la feuille successive 28b est empêchée d'être entraînée, par appui de son bord avant contre la butée 32, dont la hauteur dépasse le niveau du brin inférieur de la courroie 44. La feuille 28b, bien qu'elle soit également soulevée par l'action de l'aspiration, est donc positivement arrêtée par la butée 32. On voit donc que le dispositif d'éjection assure une individualisation très fiable des feuilles de la pile 28.In operation, an appropriate number of
La feuille supérieure ainsi individualisée se trouve appliquée contre la face opposée du brin inférieur 34a des rubans perforés 34, et est donc située dans un plan horizontal avant d'être présentée à la fente formée entre le rouleau d'entraînement 56 et le galet de pinçage 58, cette fente se trouvant essentiellement dans le même plan horizontal. Dès que le bord avant de la feuille entre dans cette fente, la feuille est positivement prise en charge et avancée par le dispositif de transfert constitué par le rouleau 56 et le galet 58. Ensuite, le bord avant de la feuille est incliné vers le bas par la tôle de déflexion 66 et rencontre la courroie 50, pour être ensuite engagé dans la fente formée entre celle-ci et la périphérie du rouleau 56. Par l'action combinée du rouleau d'entraînement 56 et de la courroie 50 mise en mouvement par rotation des rouleaux de renvoi 52 et 54, la feuille est ensuite prise en charge par le convoyeur 26 pour être amenée à la station d'assemblage. Dès que les feuilles sont prises en charge par le convoyeur vertical 26, la communication de la chambre à dépression 46 avec le dispositif d'aspiration est arrêtée, de telle sorte que l'aspiration se termine. En même temps, ou peu après ce moment, l'entraînement des rubans perforés 34 est arrêté pour éviter que la feuille suivante ne soit prématurément avancée.The upper sheet thus individualized is applied against the opposite face of the lower strand 34a of the
Aux cycles suivants, les mêmes opérations sont répétées.In the following cycles, the same operations are repeated.
Claims (10)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9304122 | 1993-04-07 | ||
FR9304122A FR2703670B1 (en) | 1993-04-07 | 1993-04-07 | SHEET ASSEMBLY WITH SUPERIMPOSED BOXES. |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0619259A1 true EP0619259A1 (en) | 1994-10-12 |
EP0619259B1 EP0619259B1 (en) | 1997-06-04 |
Family
ID=9445842
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94104680A Expired - Lifetime EP0619259B1 (en) | 1993-04-07 | 1994-03-24 | Sheet collating device with superposed carriers |
Country Status (9)
Country | Link |
---|---|
US (1) | US5499806A (en) |
EP (1) | EP0619259B1 (en) |
JP (1) | JPH0733272A (en) |
AT (1) | ATE153983T1 (en) |
DE (1) | DE69403540T2 (en) |
DK (1) | DK0619259T3 (en) |
ES (1) | ES2104216T3 (en) |
FR (1) | FR2703670B1 (en) |
GR (1) | GR3024175T3 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996029270A1 (en) * | 1995-03-18 | 1996-09-26 | Watkiss Automation Limited | Method of and apparatus for feeding sheet material |
EP1847493A2 (en) * | 2006-04-19 | 2007-10-24 | Ricoh Company, Ltd. | Sheet conveying apparatus, image scanning apparatus, and image forming apparatus |
CN110540098A (en) * | 2018-05-29 | 2019-12-06 | 京瓷办公信息系统株式会社 | Sheet post-processing device and image forming system provided with same |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
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US6254079B1 (en) * | 1998-11-24 | 2001-07-03 | Kabushiki Kaisha Toshiba | Sheet processing unit |
JP3862127B2 (en) * | 1998-12-17 | 2006-12-27 | ノーリツ鋼機株式会社 | Conveying processing means and photo processing apparatus using the same |
JP3648100B2 (en) * | 1999-07-26 | 2005-05-18 | 理想科学工業株式会社 | Collating device |
NL1013084C2 (en) * | 1999-09-17 | 2001-03-20 | Neopost Bv | Establish a system for assembling mail items. |
US6679489B2 (en) * | 2000-06-30 | 2004-01-20 | First Data Resources, Inc. | Multiple insert delivery systems and methods |
US6669186B2 (en) * | 2000-06-30 | 2003-12-30 | First Data Corporation | Multiple insert delivery systems and methods |
JP2007001744A (en) * | 2005-06-24 | 2007-01-11 | Fuji Xerox Co Ltd | Sheet feeder |
US7516949B2 (en) * | 2005-08-10 | 2009-04-14 | First Data Corporation | Sideways sheet feeder and methods |
US7922167B2 (en) | 2006-10-04 | 2011-04-12 | Ricoh Company, Limited | Sheet conveying device, and image forming apparatus including same |
SE530791C2 (en) | 2007-01-18 | 2008-09-16 | Plockmatic Int Ab | Device for separating sheets of paper by blowing air |
EP2311761A1 (en) * | 2009-10-15 | 2011-04-20 | Lin Tzu-Che | Edge alignment control apparatus for sheet material |
KR101749181B1 (en) | 2015-03-06 | 2017-06-21 | (주)이노시엠 | Multi-Type Sheet Loading System for Ceramic Film |
CN112140764A (en) * | 2019-06-28 | 2020-12-29 | 浙江师范大学 | Batch automatic stapler |
CN111361327B (en) * | 2020-03-23 | 2021-04-02 | 台州市美琪乐工艺品有限公司 | Production process of notepad |
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US2821384A (en) * | 1953-08-04 | 1958-01-28 | John C Mendes | Sheet collator |
EP0465062A1 (en) * | 1990-06-21 | 1992-01-08 | Xerox Corporation | Top sheet vacuum corrugation feeder with aerodynamic drag separation |
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US3395913A (en) * | 1966-10-11 | 1968-08-06 | Xerox Corp | Sheet material distribution system |
US3881717A (en) * | 1973-10-01 | 1975-05-06 | Grable Printing Co | Paper sheet dispenser |
GB2059391B (en) * | 1979-09-25 | 1983-06-22 | Laurel Bank Machine Co | Stacking paper sheets bank notes in dispensers |
JPS56168293A (en) * | 1980-05-30 | 1981-12-24 | Laurel Bank Machine Co | Sheets payout device |
JPS57111737U (en) * | 1980-12-27 | 1982-07-10 | ||
JPS60232333A (en) * | 1984-04-27 | 1985-11-19 | Fuji Xerox Co Ltd | Paper conveyor for copying machine |
JPS61254438A (en) * | 1985-05-01 | 1986-11-12 | Fuji Xerox Co Ltd | Sheet feeder |
US4678176A (en) * | 1985-11-06 | 1987-07-07 | Xerox Corporation | Front air knife top vacuum corrugation feeder |
JPS63123764A (en) * | 1986-11-13 | 1988-05-27 | N Ee C:Kk | Edge register and sorting method for automatically selected paper in sorting machine |
JP2934442B2 (en) * | 1988-09-19 | 1999-08-16 | 株式会社日立製作所 | Paper sheet separating and feeding device and sheet separating and feeding method |
DE4105967C2 (en) * | 1990-04-27 | 1993-11-25 | Heidelberger Druckmasch Ag | Sheet feeder with blowing nozzles for generating air under the upper sheet lifted from the sheet stack |
-
1993
- 1993-04-07 FR FR9304122A patent/FR2703670B1/en not_active Expired - Lifetime
-
1994
- 1994-03-24 DK DK94104680.7T patent/DK0619259T3/en active
- 1994-03-24 DE DE69403540T patent/DE69403540T2/en not_active Expired - Fee Related
- 1994-03-24 EP EP94104680A patent/EP0619259B1/en not_active Expired - Lifetime
- 1994-03-24 AT AT94104680T patent/ATE153983T1/en active
- 1994-03-24 ES ES94104680T patent/ES2104216T3/en not_active Expired - Lifetime
- 1994-03-29 US US08/220,533 patent/US5499806A/en not_active Expired - Lifetime
- 1994-04-07 JP JP6103488A patent/JPH0733272A/en active Pending
-
1997
- 1997-07-20 GR GR970401820T patent/GR3024175T3/en unknown
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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US2821384A (en) * | 1953-08-04 | 1958-01-28 | John C Mendes | Sheet collator |
EP0465062A1 (en) * | 1990-06-21 | 1992-01-08 | Xerox Corporation | Top sheet vacuum corrugation feeder with aerodynamic drag separation |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996029270A1 (en) * | 1995-03-18 | 1996-09-26 | Watkiss Automation Limited | Method of and apparatus for feeding sheet material |
GB2301344A (en) * | 1995-03-18 | 1996-12-04 | Watkiss Automation Ltd | Method of and apparatus for feeding sheet material |
GB2301344B (en) * | 1995-03-18 | 1998-10-28 | Watkiss Automation Ltd | Method of and apparatus for feeding sheet material |
EP1108665A2 (en) * | 1995-03-18 | 2001-06-20 | Watkiss Automation Limited | Suction device for feeding sheet material |
EP1108665A3 (en) * | 1995-03-18 | 2002-01-23 | Watkiss Automation Limited | Suction device for feeding sheet material |
EP1847493A2 (en) * | 2006-04-19 | 2007-10-24 | Ricoh Company, Ltd. | Sheet conveying apparatus, image scanning apparatus, and image forming apparatus |
EP1847493A3 (en) * | 2006-04-19 | 2008-01-02 | Ricoh Company, Ltd. | Sheet conveying apparatus, image scanning apparatus, and image forming apparatus |
US7992858B2 (en) | 2006-04-19 | 2011-08-09 | Ricoh Company, Ltd. | Sheet conveying apparatus, image scanning apparatus, and image forming apparatus |
CN110540098A (en) * | 2018-05-29 | 2019-12-06 | 京瓷办公信息系统株式会社 | Sheet post-processing device and image forming system provided with same |
Also Published As
Publication number | Publication date |
---|---|
GR3024175T3 (en) | 1997-10-31 |
FR2703670A1 (en) | 1994-10-14 |
DE69403540T2 (en) | 1997-11-13 |
ES2104216T3 (en) | 1997-10-01 |
EP0619259B1 (en) | 1997-06-04 |
DE69403540D1 (en) | 1997-07-10 |
ATE153983T1 (en) | 1997-06-15 |
FR2703670B1 (en) | 1995-06-16 |
DK0619259T3 (en) | 1997-12-01 |
JPH0733272A (en) | 1995-02-03 |
US5499806A (en) | 1996-03-19 |
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