WO1987004141A1 - Device for separating packets of sheets, particularly paper, forming a pile - Google Patents
Device for separating packets of sheets, particularly paper, forming a pile Download PDFInfo
- Publication number
- WO1987004141A1 WO1987004141A1 PCT/FR1986/000452 FR8600452W WO8704141A1 WO 1987004141 A1 WO1987004141 A1 WO 1987004141A1 FR 8600452 W FR8600452 W FR 8600452W WO 8704141 A1 WO8704141 A1 WO 8704141A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- stack
- sheets
- packets
- pack
- separating element
- Prior art date
Links
Classifications
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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
- B65H3/00—Separating articles from piles
- B65H3/32—Separating articles from piles by elements, e.g. fingers, plates, rollers, inserted or traversed between articles to be separated and remainder of the pile
- B65H3/322—Separating articles from piles by elements, e.g. fingers, plates, rollers, inserted or traversed between articles to be separated and remainder of the pile for separating a part of the pile, i.e. several articles at once
- B65H3/327—Separating articles from piles by elements, e.g. fingers, plates, rollers, inserted or traversed between articles to be separated and remainder of the pile for separating a part of the pile, i.e. several articles at once the pile being off-set
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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
- B65H2301/00—Handling processes for sheets or webs
- B65H2301/40—Type of handling process
- B65H2301/42—Piling, depiling, handling piles
- B65H2301/422—Handling piles, sets or stacks of articles
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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
- B65H2301/00—Handling processes for sheets or webs
- B65H2301/40—Type of handling process
- B65H2301/42—Piling, depiling, handling piles
- B65H2301/423—Depiling; Separating articles from a pile
- B65H2301/4232—Depiling; Separating articles from a pile of horizontal or inclined articles, i.e. wherein articles support fully or in part the mass of other articles in the piles
- B65H2301/42324—Depiling; Separating articles from a pile of horizontal or inclined articles, i.e. wherein articles support fully or in part the mass of other articles in the piles from top of the pile
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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
- B65H2701/18—Form of handled article or web
- B65H2701/182—Piled package
- B65H2701/1826—Arrangement of sheets
- B65H2701/18265—Ordered set of batches of articles
- B65H2701/18266—Ordered set of batches of articles wherein the batches are offset from each other, e.g. stepped pile
Definitions
- the invention relates to a device for separating packets of sheets, in particular sheets of paper, forming a stack in which the packets are alternately offset on one side and then on the other, so as to each have a free margin d on either side of the stack.
- sheets of paper constituting a book, a brochure, etc. to be stacked one on top of the other at the exit of a fast printer (for example a laser printer) by forming a stack comprising a certain number of books or brochures which differ from each other by their number of sheets and by their printed texts.
- a fast printer for example a laser printer
- the sheets constituting a book are exactly superimposed, while the books are offset laterally alternately with respect to each other, each book thus having, on one side or the other of the stack, a free margin which exceeds the book immediately below.
- This offset allows an operator to enter the books one by one by their free margin to introduce them into a binding machine.
- the subject of the invention is a machine capable of automatically performing this task, in a safe and reliable manner, at a rate which corresponds at least to the rate of work of an automatic binding machine and is much higher than the rate of an operator.
- the invention provides a device for separating packets of sheets, in particular of paper, forming a stack in which the packets are alternately offset on one side, then on the other, so as to each have a free margin. on one side or the other of the stack, characterized in that it comprises a lifting table carrying the stack of packets of sheets, a separable element movable between the packets of sheets, means for guiding and moving of the separator element so that it can be positioned on the free margin of the package located immediately below the upper package of the stack, to engage it under the lower sheet of this upper package and to move it towards the free margin of the upper pack while lifting at least one edge of this upper pack, means of taking this upper pack by its raised edge and transporting this pack away from the stack, and detection means and of positioning in height, relative to the means for guiding the separating element, of the free margin of the packet situated immediately below the upper packet of the stack.
- This device therefore makes it possible to separate the different packets of sheets forming a stack from one another, to take each packet and to transport it away from the stack, for example to a binding machine.
- the separating element is an annular or cylindrical brush with a horizontal axis, driven in rotation about this axis by reversible motor means, the direction of rotation of the brush being such that it tends to lift the leaves of a packet when the brush engages the edge of this packet, control means being provided for stopping the rotation of the brush when the upper packet is taken from the stack and then reverse the direction of rotation of the brush to separate the next pack.
- This separating element makes it possible to very quickly lift all the leaves of a given package, without damaging them.
- the means for guiding the separating element comprise, on the one hand, two flaps mounted to pivot each around a horizontal axis on one side and on the other of the stack, the ends of these flaps coming to bear, respectively, on the free margin of the upper pack of the stack and on that of the immediately lower pack and, on the other hand, a ramp extending between the two flaps along an edge of the stack and on which rests a means for supporting the separating element.
- each component is associated with means for detecting its angular position relative to its pivot axis such as, for example, a photoelectric cell, which are connected to means for controlling the movement in height of the lifting table.
- the packets of sheets are stacked on a support plate which rests on centering rollers provided on the upper face of the lifting table, which also comprises means for immobilizing the support plate, such as for example an electromagnet.
- This arrangement makes it possible to center the stack of packets of sheets on the lifting table, and therefore to position it correctly with respect to the separating element and its guide means.
- this support plate forms the movable bottom of a magazine supplying this device with stacks of packets of sheets, this magazine forming part of a turntable comprising several identical magazines.
- Such a store allows the automatic supply of the device according to the invention with stacks of sheet packets and, moreover, constitutes a buffer zone for storing sheet packets between the output of the printer and a binding machine.
- FIG. 1 is a schematic perspective view of a device according to the invention, associated with a turntable comprising several magazines;
- FIG. 2 is a top view of a part of this turntable, comprising a support plate for a stack of packets of sheets, positioned above a lifting table of the device;
- FIG. 3 is a schematic sectional view along line III-III of Figure 2;
- FIG. 4 is a schematic elevational view illustrating the operation of the device according to the invention.
- FIG. 5 is a top view of the device shown in Figure 4.
- FIG. 6 and 7 are views similar to Figure 4, but showing other phases of operation of the device according to the invention.
- FIGS. 1 to 3 representing the device according to the invention, associated with a turntable for feeding stacks of packets of printed sheets.
- the turntable 10 for example circular in shape, includes a number of magazines 12 and is rotated about a vertical central axis by motor means 14 to bring each of its magazines opposite a lifting table 16.
- Each store 12 comprises a removable plate 18 covering an opening 20 of the plate 10 at the four corners of which are fixed vertical angles 22 delimiting an area for receiving packets of printed sheets.
- Each plate 18 has dimensions slightly greater than those of an aperture "20 of the plate 10, so as to rest at its ends on the edges of the opening, the corners of the plate 18 is notched, as shown, to allow the passage of the vertical angles 22.
- Each opening 20 has on the other hand dimensions slightly larger than those of the lifting table 16, so that the latter, placed under a plate 18 forming an opening 20, can rise and pass to through the opening 20 to lift the plate 18 and the bundles of sheets stacked on this plate between the angles 22.
- the actual device for separating the packets of sheets comprises the lifting table 16, means 24, for example with an electric motor, for moving the table 16 vertically, two movable side plates 26 suitable for being applied on two opposite vertical sides of the stack of sheets, a fixed vertical plate 28 forming a guide other side of the stack of sheet packets, the upper edge of this plate 28 forming a ramp or cam for moving a member 30 for separating the sheet packets, means 32 for moving the separator member 30 in movement alternating on the upper edge of the fixed plate 28, and a clamp 34 for gripping a packet of sheets and depositing this packet of sheets on a conveyor means 36 taking the packet of sheets, for example to a binding machine ' . * All of these will be described in detail in the following.
- a stack of bundles of sheets carried by a plate 18 of a magazine 12 is formed of bundles 40 of sheets which are placed on top of each other, and which are formed of sheets of paper having the same dimensions, the sheets of a packet 40 being exactly superimposed on each other, while the packets 40 are alternately offset on one side and the other of the stack (on the left side and on the right side in Figure 3) so that each packet 40 has a free margin 42 which protrudes from one side or the other of the packet 40 immediately below. It can be seen that the packets of sheets 40 are alternately offset from one side or the other in a single horizontal direction, while their edges are exactly aligned in the perpendicular horizontal direction.
- the distance between two angles 22 located along a long side of an opening 20 of the plate 10 is equal to the length of a sheet of paper increased by the desired length of the free margin (by example 10 mm), while the distance between two angles 22 located along a short side of the opening 20 is substantially equal to the width of the sheets of paper.
- the lifting table 16 carries, on its upper face, rollers 44 rotatably mounted around horizontal axes perpendicular to the direction of offset of the packets of sheets 40 on a support plate 18 which rests on. these rollers 44 and can therefore be moved in one direction or the other parallel to this direction.
- the lifting table 16 further comprises means 46 for immobilizing a support plate 18 placed on the rollers 44, these means 46 may be constituted by an electromagnet when the support plate 18 is made of material susceptible to magnetization, the excitation of the electromagnet ⁇ e translating by the blocking by magnetic attraction, of the support plate 18.
- the movable side plates 26 are either fixed or displaceable in height with the lifting table 16 and are moreover associated with means of displacement in the two directions indicated by the arrows 48 in FIG. 2 so as to be applied on both sides of the stack of sheet packets which are formed by the free margins 42 of these sheet packs in order to center the support plate 18 and the stack of sheet packs on the lifting table 16 when the blocking means 46 is out of service.
- the plates 26 can be rotatably mounted each around two perpendicular horizontal axes 50 and 52, which are respectively parallel to the sides of a stack of sheets bundles carried by the lifting table 16, means , for example pneumatic cylinders 54 and 56, being provided to pivot the plates 26 around the axes 50 and 52 and therefore to move them in the two directions indicated by the arrows 48 in FIG. 2.
- the corresponding sides of the support plate 18 can be scalloped, as shown at 58 in FIG. 2, to receive the lower ends of the side plates 26 which are applied to the free margins 42 of the packets of sheets resting on the support plate 18.
- the separating element 30 which is guided in reciprocating motion on the upper edge of the fixed plate 28, is here constituted by an annular or cylindrical brush 60 with a horizontal axis, which is rotated around this axis by the shaft of output 62 of a reversible electric motor 64 (see FIG. 5).
- the output shaft 62 of the motor 64 extends perpen ⁇ dicularly to the plate 28 and can be provided with any suitable means, for example a bronze ring, for its displacement in reciprocating motion on the upper edge of the plate 28.
- the means 32 for moving the separating element 30 comprise a reversible electric motor, the output shaft of which is connected by an articulated linkage 66, 68, to the motor 64 for driving the brush 60 in rotation.
- the upper edge of the fixed plate 28, forming the guide ramp of the separating element 30, comprises two flat end parts 70, situated at the same height, and a raised flat central part 72, connected to the flat end parts by planes inclined 74.
- the lifting table 16 is associated with means for controlling movement in height, making it possible to position the separation plane of the upper pack of a stack at the desired height relative to the separating element 30.
- These means comprise two flaps 76 placed on either side of a stack of bundles of sheets to be able cooperate with the free margins of the packets of sheets of the stack and which are each mounted pivoting about a horizontal axis 78 perpendicular to the direction of offset of the packets of sheets in the stack, so that one end of a flap 76 rests on the free margin of the upper pack of the stack while one end of the other flap 76 rests on the free margin of the immediately lower pack of the stack, the opposite ends of the two flaps 76 each extending between the 'transmitting element and the receiving element of a photoelectric cell 80 to hide or unmask the receiving element of the photoelectric cell according to the angular position of the flap relative to the axis 78.
- Both photoelectric cells 80 are connected to a circuit 82 for controlling the means 24 for moving the
- the device also comprises means 84 (FIG. 1) for moving and actuating the clamp 34, making it possible to move this clamp in rotation about a horizontal axis to come and pick up a packet of sheets from the stack carried by the lifting table, tighten the two jaws of the clamp on this pack of sheets and move the clamp and the pack of sheets towards the means 36 of transport.
- means 84 for moving and actuating the clamp 34, making it possible to move this clamp in rotation about a horizontal axis to come and pick up a packet of sheets from the stack carried by the lifting table, tighten the two jaws of the clamp on this pack of sheets and move the clamp and the pack of sheets towards the means 36 of transport.
- a series of rollers 86 are also provided, carried by a horizontal rod 88 which is resiliently urged downward to apply the rollers 86 substantially on the longitudinal axis of the upper face of the upper pack of a stack carried by the lifting table 16.
- the support plate 18 is advantageously curved in the portion of a cylinder, so as to present two parallel straight edges connected to each other by two curved edges in an arc of a circle, the concavity of the support plate 18 being oriented upwards, the plate 18 being carried by the lifting table 16 so that one of its straight edges, situated on the side of the fixed plate 28, or at a level lower than that of the other straight edge so that the packets of sheets 40 are correctly applied against the fixed guide plate 28.
- the device which has just been described operates in the following manner.
- the packets of printed sheets constituting books or the like are deposited on the plates 18 of the magazines 12 of the turntable 10, being offset alternately on one side and on the other as already described, so as to each have a margin approximately 10 mm free protruding from the immediately lower bundle, the overlapping bundles of sheets not necessarily comprising the same number of sheets.
- a magazine 12 By rotating a fraction of a turn of the turntable 10, a magazine 12 is brought filled with bundles of sheets opposite the lift table 16 which is then at a level lower than that of the tray 10. Of course, the side plates 26 have been discarded so as not to be on the path of the magazine 22.
- the table 16 is raised to lift the plate 18 carrying the stack of sheets packets slightly above the tray 10, the side plates 26 are brought back to be applied on the two sides of the stack sheet bundles, as shown in Figures 1 to 3, and thus center the support plate 18 on the lifting table 16, after which the means 46 for locking the support plate 18 is energized to prevent any further displacement of this plate 18 with respect to the lifting table 16.
- the lifting of the lifting table 16 continues until the position shown in FIG. 4, in which the flap 76 located on the right side in FIG. 4 is inclined upward relative to the horizontal , its end resting on the free margin of the upper pack 40a of the stack, its opposite end then being located below the associated cell 80, and the flap 76 located on the left side in FIG. 4 is substantially horizontal and rests at one end on the free margin of the packet 40b located immediately below the lower packet 40a, while its opposite end is immediately below the associated cell 80 and has just unmasked the receiving element of this cell, which causes the rise in the lifting table.
- the separating element 30 is on the left side of the stack in FIG. 4, the brush 60 being on the flap 76, and begins to move to the right, the brush 60 being driven in rotation at high speed in the direction indicated by the arrow 90, that is to say the anti-clockwise direction in FIG. 4.
- the brush 60 will therefore attack the edge of the upper packet 40a which is opposite its free margin and thus goes lift all the sheets from the upper pack 40a and move between the raised edge of the upper pack and the upper sheet of the lower pack 40b as shown in Figure 4.
- the separating element 30 therefore moves on the horizontal end 70 to the left of the edge upper part of the fixed plate 28, climbs the inclined plane 74 and runs through the raised middle part 72 of the upper edge of the plate 28 to stop at the end of this middle part as shown in FIG. 6.
- the separating element 30 resumes its movement to the right from the position shown in FIG. 6, descends on the inclined plane 74 and continues its movement until the brush 60 is located on the part of the flap 76 which is supported on the free margin of the package 40c.
- the separating element 30 is moved in the opposite direction, that is to say to the left in FIG. 7, and the brush 60 is rotated at high speed in the clockwise direction, to attack the edge of the upper packet 40b which is opposite its free margin.
- the brush 60 lifts the leaves of the upper pack 40b and moves to the left end of the raised middle part 72 of the upper edge of the fixed plate 28, the pliers 34 grips the raised edge of the pack 40b and takes this pack towards the conveyor means 36.
- the flap 76 on the left in FIG. 7 swings down and comes to rest on the free margin of the package 40d located i medially below the package 40c .
- the receiver element of cell 80 associated with this flap is hidden by the rear part of this flap, which results in a signal of rise of the lifting table 16 until the flap 76 on the left is again in a substantially horizontal position. We then find our in the situation represented in FIG. 4.
- the packets of sheets 40 forming a stack carried by the lifting table 16 are thus separated and taken one after the other to the conveyor means 36.
- the lifting table 16 descends, deposits the plate 18 on the edges of the corresponding opening 20 of the turntable 10, and the latter is rotated by a fraction of a turn to bring the next magazine above the lifting table 16.
- the device according to the invention also comprises means, shown in FIG. 1, which make it possible to lift the separating element 30 above the upper edge of the fixed plate 28 and of the upper pack of the stack carried by the lifting table, and this without interrupting the reciprocating movement of this separating element, for example when the means provided downstream of this separation device (conveyor means 36 or binding machine) are stopped.
- These lifting means of the separating element 30 comprise a ramp 92 parallel to the fixed plate 28 and pivotally mounted around a horizontal axis 94 perpendicular to this plate, and a drive means, for example a pneumatic cylinder 96, of displacement of the ramp 92 in rotation about the axis 94, between a first position where it is under the separating element 30 and has no action thereon, and a second position where it lifts the element separator 30 above the upper edge of the fixed plate 28.
- a drive means for example a pneumatic cylinder 96
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Abstract
Device for separating packets of sheets (40) forming a pile wherein the packets of sheets are alternatingly offset to one side and to the other, comprising a lifting table (16) for supporting the pile of packets of sheets and a displaceable separator element (30) which moves reciprocatingly along a top edge of the pile so as to introduce it between the top packet of the pile and the packet which is immediately under and to lift one edge of the top packet sufficiently to allow a gripper (34) to seize the packet. The invention applies particularly to the separation of packets of sheets forming books at the output end of a fast printing machine.
Description
Dispositif de séparation de paquets de feuilles, en particulier de papier, formant une pile.Device for separating packets of sheets, in particular paper, forming a stack.
L'invention concerne un dispositif de séparation de paquets de feuilles, en particulier de feuilles de papier, formant une pile dans laquelle les paquets sont alternativement décalés d'un côté, puis de l'autre, de façon à présenter chacun une marge libre d'un côté ou de l'autre de la pile.The invention relates to a device for separating packets of sheets, in particular sheets of paper, forming a stack in which the packets are alternately offset on one side and then on the other, so as to each have a free margin d on either side of the stack.
Il est usuel que des feuilles de papier constituant un livre, une brochure, etc, soient empilées les unes sur les autres à la sortie d'une imprimante rapide (par exemple une imprimante à laser) en formant une pile comportant un certain nombre de livres ou de brochures qui diffèrent les uns des autres par leurs nombres de feuilles et par leurs textes imprimés. Dans cette pile, les feuilles cons¬ tituant un livre sont exactement superposées, tandis que les livres sont décalés latéralement de façon alternée les uns par rapport aux autres,chaque livre présentant ainsi, d'un côté ou de l'autre de la pile, une marge libre qui dépasse du livre immédiatement inférieur.It is usual for sheets of paper constituting a book, a brochure, etc., to be stacked one on top of the other at the exit of a fast printer (for example a laser printer) by forming a stack comprising a certain number of books or brochures which differ from each other by their number of sheets and by their printed texts. In this stack, the sheets constituting a book are exactly superimposed, while the books are offset laterally alternately with respect to each other, each book thus having, on one side or the other of the stack, a free margin which exceeds the book immediately below.
Ce décalage permet à un opérateur de saisir les livres un par un par leur marge libre pour les introduire dans une machine à relier.This offset allows an operator to enter the books one by one by their free margin to introduce them into a binding machine.
Ce travail répétitif et particulièrement fastidieux occupe
une personne à temps plein et est donc relativement onéreux.This repetitive and particularly tedious work occupies a full-time person and is therefore relatively expensive.
L'invention a pour objet une machine capable d'exécuter automatiquement cette tâche, de façon sûre et fiable, à une cadence qui correspond au moins à la cadence de travail d'une machine automatique à relier et est très supérieure à la cadence d'un opérateur.The subject of the invention is a machine capable of automatically performing this task, in a safe and reliable manner, at a rate which corresponds at least to the rate of work of an automatic binding machine and is much higher than the rate of an operator.
L'invention propose à cet effet un dispositif de séparation de paquets de feuilles, en particulier de papier, formant une pile dans laquelle les paquets sont alternativement décalés d'un côté, puis de l'autre, de façon à présenter chacun une marge libre d'un côté ou de l'autre de la pile, caractérisé en ce qu'il comprend une table élévatrice portant la pile de paquets de feuilles, un élément sépara¬ teur déplaçable entre les paquets de feuilles, des moyens de guidage et de déplacement de l'élément séparateur permet¬ tant de le positionner sur la marge libre du paquet situé immédiatement en dessous du paquet supérieur de la pile, de l'engager sous la feuille inférieure de ce paquet supé¬ rieur et de le déplacer vers la marge libre du paquet supérieur tout en soulevant au moins un bord de ce paquet supérieur, des moyens de prise de ce paquet supérieur par son bord soulevé et de transport de ce paquet à 1'écart de la pile, et des moyens de détection et de positionne¬ ment en hauteur, par rapport aux moyens de guidage de l'élément séparateur, de la marge libre du paquet situé immédiatement en dessous du paquet supérieur de la pile.To this end, the invention provides a device for separating packets of sheets, in particular of paper, forming a stack in which the packets are alternately offset on one side, then on the other, so as to each have a free margin. on one side or the other of the stack, characterized in that it comprises a lifting table carrying the stack of packets of sheets, a separable element movable between the packets of sheets, means for guiding and moving of the separator element so that it can be positioned on the free margin of the package located immediately below the upper package of the stack, to engage it under the lower sheet of this upper package and to move it towards the free margin of the upper pack while lifting at least one edge of this upper pack, means of taking this upper pack by its raised edge and transporting this pack away from the stack, and detection means and of positioning in height, relative to the means for guiding the separating element, of the free margin of the packet situated immediately below the upper packet of the stack.
Ce dispositif permet donc de séparer les uns des autres les différents paquets de feuilles formant une pile, de prendre chaque paquet et de le transporter à l'écart de la: pile, par exemple vers une machine à relier.This device therefore makes it possible to separate the different packets of sheets forming a stack from one another, to take each packet and to transport it away from the stack, for example to a binding machine.
Selon une autre caractéristique de l'invention, l'élément séparateur est une brosse annulaire ou cylindrique d'axe horizontal, entraînée en rotation autour de cet axe par des moyens moteurs réversibles, le sens de rotation de
la brosse étant tel qu'il tend à soulever les feuilles d'un paquet lorsque la brosse vient engager la tranche de ce paquet, des moyens de commande étant prévus pour arrêter la rotation de la brosse lors de la prise du paquet supérieur de la pile et inverser ensuite le sens de rotation de la brosse pour la séparation du paquet suivant.According to another characteristic of the invention, the separating element is an annular or cylindrical brush with a horizontal axis, driven in rotation about this axis by reversible motor means, the direction of rotation of the brush being such that it tends to lift the leaves of a packet when the brush engages the edge of this packet, control means being provided for stopping the rotation of the brush when the upper packet is taken from the stack and then reverse the direction of rotation of the brush to separate the next pack.
Cet élément séparateur permet de soulever de façon très rapide toutes les feuilles d'un paquet déterminé, sans les abimer.This separating element makes it possible to very quickly lift all the leaves of a given package, without damaging them.
Selon encore une autre caractéristique de l'invention, les moyens de guidage de l'élément séparateur comprennent, d'une part, deux volets montés pivotants chacun autour d'un axe horizontal d'un côté et de l'autre de la pile, les extrémités de ces volets venant en appui, respective¬ ment, sur la marge libre du paquet supérieur de la pile et sur celle du paquet immédiatement inférieur et, d'autre part, une rampe s'étendant entre les deux volets le long d'un bord de la pile et sur laquelle repose un moyen de support de l'élément séparateur.According to yet another characteristic of the invention, the means for guiding the separating element comprise, on the one hand, two flaps mounted to pivot each around a horizontal axis on one side and on the other of the stack, the ends of these flaps coming to bear, respectively, on the free margin of the upper pack of the stack and on that of the immediately lower pack and, on the other hand, a ramp extending between the two flaps along an edge of the stack and on which rests a means for supporting the separating element.
Avantageusement, chaque volet est associé à des moyens de détection de sa position angulaire par rapport à son axe de pivotement tels par exemple qu'une cellule photo¬ électrique, qui sont reliés à des moyens de commande du déplacement en hauteur de la table élévatrice.Advantageously, each component is associated with means for detecting its angular position relative to its pivot axis such as, for example, a photoelectric cell, which are connected to means for controlling the movement in height of the lifting table.
On obtient ainsi, de façon particulièrement simple et efficace, un bon guidage de l'élément séparateur lorsqu'il vient attaquer le bord d'un paquet de feuilles et, de plus, un positionnement en hauteur de la pile dès que nécessaire, c'est-à-dire dès la prise du paquet supérieur de la pile.This gives particularly simple and effective guidance of the separating element when it comes to attack the edge of a bundle of sheets and, in addition, positioning in height of the stack as soon as necessary, it that is, as soon as the upper packet is taken from the stack.
Selon une autre caractéristique de l'invention, les paquets de feuilles sont empilés sur une plaque support qui repose
sur des galets de centrage prévus sur la face supérieure de la table élévatrice, qui comprend également des moyens d'immobilisation de la plaque support, tels par exemple qu'un électro-aimant.According to another characteristic of the invention, the packets of sheets are stacked on a support plate which rests on centering rollers provided on the upper face of the lifting table, which also comprises means for immobilizing the support plate, such as for example an electromagnet.
Cet agencement permet de centrer la pile de paquets de feuilles sur la table élévatrice, et donc de la positionner correctement par rapport à l'élément séparateur et à ses moyens de guidage.This arrangement makes it possible to center the stack of packets of sheets on the lifting table, and therefore to position it correctly with respect to the separating element and its guide means.
Avantageusement, cette plaque support forme le fond mobile d'un magasin d'alimentation de ce dispositif en piles de paquets de feuilles, ce magasin faisant partie d'un plateau tournant comprenant plusieurs magasins identiques.Advantageously, this support plate forms the movable bottom of a magazine supplying this device with stacks of packets of sheets, this magazine forming part of a turntable comprising several identical magazines.
Un tel magasin permet l'alimentation automatique du disposi¬ tif selon l'invention en piles de paquets de feuilles et, par ailleurs, constitue une zone tampon de stockage de paquets de feuilles entre la sortie de l'imprimante et une machine à relier.Such a store allows the automatic supply of the device according to the invention with stacks of sheet packets and, moreover, constitutes a buffer zone for storing sheet packets between the output of the printer and a binding machine.
Dans la description qui suit, faite à titre d'exemple, on se réfère aux dessins annexés, dans lesquels :In the description which follows, given by way of example, reference is made to the appended drawings, in which:
- la figure 1 est une vue schématique en perspective d'un dispositif selon l'invention, associé à un plateau tournant comprenant plusieurs magasins;- Figure 1 is a schematic perspective view of a device according to the invention, associated with a turntable comprising several magazines;
- la figure 2 est une vue de dessus d'une partie de ce plateau tournant, comprenant une plaque de support d'une pile de paquets de feuilles, positionnée au-dessus d'une table élévatrice du dispositif;- Figure 2 is a top view of a part of this turntable, comprising a support plate for a stack of packets of sheets, positioned above a lifting table of the device;
- la figure 3 est une vue schématique en coupe selon la ligne III-III de la figure 2;- Figure 3 is a schematic sectional view along line III-III of Figure 2;
- la figure 4 est une vue schématique en élévation illustrant
le fonctionnement du dispositif selon l'invention;- Figure 4 is a schematic elevational view illustrating the operation of the device according to the invention;
- la figure 5 est une vue de dessus du dispositif représenté en figure 4;- Figure 5 is a top view of the device shown in Figure 4;
- les figures 6 et 7 sont des vues semblables à la figure 4, mais représentant d'autres phases de fonctionnement du dispositif selon l'invention.- Figures 6 and 7 are views similar to Figure 4, but showing other phases of operation of the device according to the invention.
On se réfère d'abord aux figures 1 à 3, représentant le dispositif selon l'invention, associé à un plateau tournant d'alimentation en piles de paquets de feuilles imprimées.Reference is first made to FIGS. 1 to 3, representing the device according to the invention, associated with a turntable for feeding stacks of packets of printed sheets.
Le plateau tournant 10, de forme par exemple circulaire, comprend un certain nombre de magasins 12 et est entraîné en rotation autour d'un axe central vertical par des moyens moteurs 14 pour amener chacun de ses magasins en regard d'une table élévatrice 16.The turntable 10, for example circular in shape, includes a number of magazines 12 and is rotated about a vertical central axis by motor means 14 to bring each of its magazines opposite a lifting table 16.
Chaque magasin 12 comprend une plaque amovible 18 recouvrant une ouverture 20 du plateau 10 aux quatre coins de laquelle sont fixées des cornières verticales 22 délimitant une zone de réception de paquets de feuilles imprimées. Chaque plaque 18 a des dimensions légèrement supérieures à celles d'une ouverture' 20 du plateau 10, de façon à pouvoir reposer à ses extrémités sur les bords de l'ouverture, les coins de la plaque 18 étant échancrés, comme représenté, pour permettre le passage des cornières verticales 22. Chaque ouverture 20 a d'autre part des dimensions légèrement supérieures à celles de la table élévatrice 16, de telle sorte que celle-ci, placée sous une plaque 18 formant une ouverture 20, puisse monter et passer à travers l'ouver¬ ture 20 pour soulever la plaque 18 et les paquets de feuilles empilés sur cette plaque entre les cornières 22.Each store 12 comprises a removable plate 18 covering an opening 20 of the plate 10 at the four corners of which are fixed vertical angles 22 delimiting an area for receiving packets of printed sheets. Each plate 18 has dimensions slightly greater than those of an aperture "20 of the plate 10, so as to rest at its ends on the edges of the opening, the corners of the plate 18 is notched, as shown, to allow the passage of the vertical angles 22. Each opening 20 has on the other hand dimensions slightly larger than those of the lifting table 16, so that the latter, placed under a plate 18 forming an opening 20, can rise and pass to through the opening 20 to lift the plate 18 and the bundles of sheets stacked on this plate between the angles 22.
Le dispositif proprement dit de séparation des paquets de feuilles comprend la table, élévatrice 16, des moyens
24, par exemple à moteur électrique, de déplacement de la table 16 en hauteur, deuxplaques latérales mobiles 26 propres à venir s'appliquer sur deux flancs verticaux opposés de la pile de paquets de feuilles, une plaque verticale fixe 28 formant guidage d'un autre flanc de la pile de paquets de feuilles, le bord supérieur de cette plaque 28 formant rampe ou came de guidage en déplacement d'un élément 30 de séparation des paquets de feuilles, des moyens 32 de déplacement de l'élément séparateur 30 en mouvement alternatif sur le bord supérieur de la plaque fixe 28, et une pince 34 de préhension d'un paquet de feuilles et de dépôt de ce paquet de feuilles sur un moyen transporteur 36 emmenant le paquet de feuilles, par exemple vers une machine à relier'.* Tous ces éléments seront décrits en détail dans ce qui suit.The actual device for separating the packets of sheets comprises the lifting table 16, means 24, for example with an electric motor, for moving the table 16 vertically, two movable side plates 26 suitable for being applied on two opposite vertical sides of the stack of sheets, a fixed vertical plate 28 forming a guide other side of the stack of sheet packets, the upper edge of this plate 28 forming a ramp or cam for moving a member 30 for separating the sheet packets, means 32 for moving the separator member 30 in movement alternating on the upper edge of the fixed plate 28, and a clamp 34 for gripping a packet of sheets and depositing this packet of sheets on a conveyor means 36 taking the packet of sheets, for example to a binding machine ' . * All of these will be described in detail in the following.
COmme on le voit sur les figures 1 et 3, une pile de paquets de feuilles portée par une plaque 18 d'un magasin 12 est formée de paquets 40 de feuilles qui sont posés les uns sur les autres, et qui sont formés de feuilles de papier ayant les mêmes dimensions, les feuilles d'un paquet 40 étant exactement superposées les unes aux autres, tandis que les paquets 40 sont alternativement décalés d'un côté et de l'autre de la pile (du côté gauche et du côté droit en figure 3) de telle sorte que chaque paquet 40 présente une marge libre 42 qui dépasse d'un côté ou de l'autre du paquet 40 immédiatement inférieur. On voit que les paquets de feuilles 40 sont alternativement décalés d'un côté ou de l'autre dans une seule direction horizontale, tandis que leurs bords sont exactement alignés dans la direction horizontale perpendiculaire. En d'autres termes, la distance entre deux cornières 22 situées le long d'un grand côté d'une ouverture 20 du plateau 10 est égale à la longueur d'une feuille de papier augmentée de la longueur souhaitée de la marge libre (par exemple 10 mm), tandis que la distance entre deux cornières 22 situées le long d'un petit côté de l'ouverture 20 est sensiblement
égale à la largeur des feuilles de papier.As can be seen in FIGS. 1 and 3, a stack of bundles of sheets carried by a plate 18 of a magazine 12 is formed of bundles 40 of sheets which are placed on top of each other, and which are formed of sheets of paper having the same dimensions, the sheets of a packet 40 being exactly superimposed on each other, while the packets 40 are alternately offset on one side and the other of the stack (on the left side and on the right side in Figure 3) so that each packet 40 has a free margin 42 which protrudes from one side or the other of the packet 40 immediately below. It can be seen that the packets of sheets 40 are alternately offset from one side or the other in a single horizontal direction, while their edges are exactly aligned in the perpendicular horizontal direction. In other words, the distance between two angles 22 located along a long side of an opening 20 of the plate 10 is equal to the length of a sheet of paper increased by the desired length of the free margin (by example 10 mm), while the distance between two angles 22 located along a short side of the opening 20 is substantially equal to the width of the sheets of paper.
La table élévatrice 16 porte, sur sa face supérieure, des galets 44 montés à rotation autour d'axes horizontaux perpendiculaires à la direction de décalage des paquets de feuilles 40 sur une plaque support 18 qui repose sur . ces galets 44 et peut donc être déplacée dans un sens ou dans l'autre parallèlement à cette direction. La table élévatrice 16 comprend en outre des moyens 46 d'immobilisa- tion d'une plaque support 18 posée sur les galets 44, ces moyens 46 pouvant être constitués par un électro¬ aimant lorsque la plaque support 18 est en matériau suscepti¬ ble d'aimantation, l'excitation de 1'électro-aimant ≈e traduisant par le blocagey par attraction magnétique, de la plaque support 18.The lifting table 16 carries, on its upper face, rollers 44 rotatably mounted around horizontal axes perpendicular to the direction of offset of the packets of sheets 40 on a support plate 18 which rests on. these rollers 44 and can therefore be moved in one direction or the other parallel to this direction. The lifting table 16 further comprises means 46 for immobilizing a support plate 18 placed on the rollers 44, these means 46 may be constituted by an electromagnet when the support plate 18 is made of material susceptible to magnetization, the excitation of the electromagnet ≈e translating by the blocking by magnetic attraction, of the support plate 18.
Les plaques latérales mobiles 26 sont soit fixes, soit déplaçables en hauteur avec la table élévatrice 16 et sont de plus associées à des moyens de déplacement dans les deux directions indiquées par les flèches 48 en figure 2 de façon à venir s'appliquer sur les deux flancs de la pile de paquets de feuilles qui sont formés par les marges libres 42 de ces paquets de feuilles afin de centrer la plaque support 18 et la pile de paquets de feuilles sur la table élévatrice 16 lorsque le moyen 46 de blocage est hors service.The movable side plates 26 are either fixed or displaceable in height with the lifting table 16 and are moreover associated with means of displacement in the two directions indicated by the arrows 48 in FIG. 2 so as to be applied on both sides of the stack of sheet packets which are formed by the free margins 42 of these sheet packs in order to center the support plate 18 and the stack of sheet packs on the lifting table 16 when the blocking means 46 is out of service.
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Comme représenté en figure 1, les plaques 26 peuvent être montées à rotation chacune autour de deux axes horizontaux perpendiculaires 50 et 52, qui sont parallèles respective¬ ment aux côtés d'une pile de paquets de feuilles portée par la table élévatrice 16, des moyens, par exemple des vérins pneumatiques 54 et 56, étant prévus pour faire pivoter les plaques 26 autour des axes 50 et 52 et donc pour les déplacer dans les deux directions indiquées par les flèches 48 en figure 2.
Les côtés correspondants de la plaque support 18 peuvent être échancrés, comme représenté en 58 en figure 2, pour recevoir les extrémités inférieures des plaques latérales 26 qui viennent s'appliquer sur les marges libres 42 des paquets de feuilles reposant sur la plaque support 18.As shown in FIG. 1, the plates 26 can be rotatably mounted each around two perpendicular horizontal axes 50 and 52, which are respectively parallel to the sides of a stack of sheets bundles carried by the lifting table 16, means , for example pneumatic cylinders 54 and 56, being provided to pivot the plates 26 around the axes 50 and 52 and therefore to move them in the two directions indicated by the arrows 48 in FIG. 2. The corresponding sides of the support plate 18 can be scalloped, as shown at 58 in FIG. 2, to receive the lower ends of the side plates 26 which are applied to the free margins 42 of the packets of sheets resting on the support plate 18.
Lorsque les plaques 26 sont fixes en hauteur, une découpe 17 est formée dans chacun des deux bords correspondants de la table 16.When the plates 26 are fixed in height, a cutout 17 is formed in each of the two corresponding edges of the table 16.
L'élément séparateur 30 qui est guidé en mouvement alternatif sur le bord supérieur de la plaque fixe 28, est ici constitué par une brosse annulaire ou cylindrique 60 d'axe horizontal, qui est entraînée en rotation autour de cet axe par l'arbre de sortie 62 d'un moteur électrique réversible 64 (voir figure 5). L'arbre de sortie 62 du moteur 64 s'étend perpen¬ diculairement à la plaque 28 et peut être muni de tous moyens appropriés, par exemple une bague en bronze, pour son déplacement en mouvement alternatif sur le bord supérieur de la plaque 28.The separating element 30 which is guided in reciprocating motion on the upper edge of the fixed plate 28, is here constituted by an annular or cylindrical brush 60 with a horizontal axis, which is rotated around this axis by the shaft of output 62 of a reversible electric motor 64 (see FIG. 5). The output shaft 62 of the motor 64 extends perpen¬ dicularly to the plate 28 and can be provided with any suitable means, for example a bronze ring, for its displacement in reciprocating motion on the upper edge of the plate 28.
Les moyens 32 de déplacement de l'élément séparateur 30 comprennent un moteur électrique réversible, dont l'arbre de sortie est relié par une tringlerie articulée 66, 68, au moteur 64 d'entraînement en rotation de la brosse 60. Le bord supérieur de la plaque fixe 28, formant la rampe de guidage de l'élément séparateur 30, comprend deux parties planes d'extrémité 70, situées à la même hauteur, et une partie médiane 72 plane surélevée, reliée aux parties planes d'extrémité par des plans inclinés 74.The means 32 for moving the separating element 30 comprise a reversible electric motor, the output shaft of which is connected by an articulated linkage 66, 68, to the motor 64 for driving the brush 60 in rotation. The upper edge of the fixed plate 28, forming the guide ramp of the separating element 30, comprises two flat end parts 70, situated at the same height, and a raised flat central part 72, connected to the flat end parts by planes inclined 74.
La table élévatrice 16 est associée à des moyens de commande de déplacement en hauteur, permettant de positionner le plan de séparation du paquet supérieur d'une pile à la hauteur voulue par rapport à l'élément séparateur 30. Ces moyens comprennent deux volets 76 placés de part et d'autre d'une pile de paquets de feuilles pour pouvoir
coopérer avec les marges libres des paquets de feuilles de la pile et qui sont montés chacun pivotant autour d'un axe horizontal 78 perpendiculaire à la direction de décalage des paquets de feuilles dans la pile, de telle sorte qu'une extrémité d'un volet 76 repose sur la marge libre du paquet supérieur de la pile tandis qu'une extrémité de l'autre - volet 76 repose sur la marge libre du paquet immédiatement inférieur de la pile, les extrémités opposées des deux volets 76 s 'étendant chacune entre l'élément émetteur et l'élément récepteur d'une cellule photo-électrique 80 pour occulter ou démasquer l'élément récepteur de la cellule photo-électrique en fonction de la position angu¬ laire du volet par rapport à l'axe 78. Les deux cellules photo-électriques 80 sont raccordées à un circuit 82 de commande des moyens 24 de déplacement en hauteur de la table 16 (figure 4).The lifting table 16 is associated with means for controlling movement in height, making it possible to position the separation plane of the upper pack of a stack at the desired height relative to the separating element 30. These means comprise two flaps 76 placed on either side of a stack of bundles of sheets to be able cooperate with the free margins of the packets of sheets of the stack and which are each mounted pivoting about a horizontal axis 78 perpendicular to the direction of offset of the packets of sheets in the stack, so that one end of a flap 76 rests on the free margin of the upper pack of the stack while one end of the other flap 76 rests on the free margin of the immediately lower pack of the stack, the opposite ends of the two flaps 76 each extending between the 'transmitting element and the receiving element of a photoelectric cell 80 to hide or unmask the receiving element of the photoelectric cell according to the angular position of the flap relative to the axis 78. Both photoelectric cells 80 are connected to a circuit 82 for controlling the means 24 for moving the table 16 in height (FIG. 4).
Le dispositif comprend encore des moyens 84 (figure 1) de déplacement et d'actionnement de la pince 34, permettant de déplacer cette pince en rotation autour d'un axe horizon¬ tal pour venir prendre un paquet de feuilles sur la pile portée par la table élévatrice, de serrer les deux mâchoires de la pince sur ce paquet de feuilles et de déplacer la pince et le paquet de feuilles vers le moyen 36 de transport.The device also comprises means 84 (FIG. 1) for moving and actuating the clamp 34, making it possible to move this clamp in rotation about a horizontal axis to come and pick up a packet of sheets from the stack carried by the lifting table, tighten the two jaws of the clamp on this pack of sheets and move the clamp and the pack of sheets towards the means 36 of transport.
On prévoit également une série de galets 86, portés par une tige horizontale 88 sollicitée élastiquement vers le bas pour venir appliquer les galets 86 sensiblement sur l'axe longitudinal de la face supérieure du paquet supérieur d'une pile portée par la table élévatrice 16.A series of rollers 86 are also provided, carried by a horizontal rod 88 which is resiliently urged downward to apply the rollers 86 substantially on the longitudinal axis of the upper face of the upper pack of a stack carried by the lifting table 16.
Par ailleurs, la plaque support 18 est avantageusement incurvée en portion de cylindre, de façon à présenter deux bords droits parallèles reliés entre eux par deux bords incurvés en arc de cercle, la concavité de la plaque support 18 étant orientée vers le haut, la plaque 18 étant portée par la table élévatrice 16 de telle sorte que l'un
de ses bords droits, situé du côté de la plaque fixe 28, soit à un niveau inférieur à celui de l'autre bord droit pour que les paquets de feuilles 40 soient correctement appliqués contre la plaque fixe de guidage 28.Furthermore, the support plate 18 is advantageously curved in the portion of a cylinder, so as to present two parallel straight edges connected to each other by two curved edges in an arc of a circle, the concavity of the support plate 18 being oriented upwards, the plate 18 being carried by the lifting table 16 so that one of its straight edges, situated on the side of the fixed plate 28, or at a level lower than that of the other straight edge so that the packets of sheets 40 are correctly applied against the fixed guide plate 28.
Le dispositif qui vient d'être décrit fonctionne de la façon suivante.The device which has just been described operates in the following manner.
Les paquets de feuilles imprimées constituant des livres ou analogues sont déposés sur les plaques 18 des magasins 12 du plateau tournant 10, en étant décalés alternative¬ ment d'un côté et de l'autre comme déjà décrit, de façon à présenter chacun une marge libre d'environ 10 mm dépassant du paquet immédiatement inférieur, les paquets superposés de feuilles ne comprenant pas nécessairement le même nombre de feuilles.The packets of printed sheets constituting books or the like are deposited on the plates 18 of the magazines 12 of the turntable 10, being offset alternately on one side and on the other as already described, so as to each have a margin approximately 10 mm free protruding from the immediately lower bundle, the overlapping bundles of sheets not necessarily comprising the same number of sheets.
Par rotation d'une fraction de tour du plateau tournant 10, on amène un magasin 12 rempli de paquets de feuilles en regard de la table élévatrice 16 qui se trouve alors à un niveau inférieur à celui du plateau 10. Bien entendu, les plaques latérales 26 ont été écartées de façon à ne pas se trouver sur la trajectoire du magasin 22.By rotating a fraction of a turn of the turntable 10, a magazine 12 is brought filled with bundles of sheets opposite the lift table 16 which is then at a level lower than that of the tray 10. Of course, the side plates 26 have been discarded so as not to be on the path of the magazine 22.
Lors de l'étape suivante, la table 16 est relevée pour soulever la plaque 18 portant la pile de paquets de feuilles légèrement au-dessus du plateau 10, les plaques latérales 26 sont ramenées pour venir s'appliquer sur les deux flancs de la pile de paquets de feuilles, comme représenté dans les figures 1 à 3, et centrer ainsi la plaque support 18 sur la table élévatrice 16, après quoi le moyen 46 de blocage de la plaque support 18 est excité pour empêcher tout déplacement ultérieur de cette plaque 18 par rapport à la table élévatrice 16. La montée de la table élévatrice 16 se poursuit jusqu'à la position représentée en figure 4, dans laquelle le volet 76 situé du côté droit en figure 4 est incliné vers le haut par rapport à l'horizontale,
son extrémité reposant sur la marge libre du paquet supérieur 40a de la pile,son extrémité opposée se trouvant alors en dessous de la cellule associée 80, et le volet 76 situé du côté gauche en figure 4 est sensiblement horizontal et repose par une extrémité sur la marge libre du paquet 40b situé immédiatement sous le paquet inférieur 40a, tandis que son extrémité opposée se trouve immédiatement en dessous de la cellule associée 80 et vient de démasquer l'élément récepteur de cette cellule, ce qui provoque l'arrêt de la montée de la table élévatrice.During the next step, the table 16 is raised to lift the plate 18 carrying the stack of sheets packets slightly above the tray 10, the side plates 26 are brought back to be applied on the two sides of the stack sheet bundles, as shown in Figures 1 to 3, and thus center the support plate 18 on the lifting table 16, after which the means 46 for locking the support plate 18 is energized to prevent any further displacement of this plate 18 with respect to the lifting table 16. The lifting of the lifting table 16 continues until the position shown in FIG. 4, in which the flap 76 located on the right side in FIG. 4 is inclined upward relative to the horizontal , its end resting on the free margin of the upper pack 40a of the stack, its opposite end then being located below the associated cell 80, and the flap 76 located on the left side in FIG. 4 is substantially horizontal and rests at one end on the free margin of the packet 40b located immediately below the lower packet 40a, while its opposite end is immediately below the associated cell 80 and has just unmasked the receiving element of this cell, which causes the rise in the lifting table.
Dans cette position, l'élément séparateur 30 est du côté gauche de la pile en figure 4, la brosse 60 se trouvant sur le volet 76, et commence à se déplacer vers la droite, la brosse 60 étant entraînée en rotation à vitesse élevée dans le sens indiqué par la flèche 90, c'est-à-dire le sens contraire des aiguilles d'une montre en figure 4. La brosse 60 va donc attaquer la tranche du paquet supérieur 40a qui est opposée à sa marge libre et va ainsi soulever toutes les feuilles du paquet supérieur 40a et se déplacer entre le bord soulevé du paquet supérieur et la feuille supérieure du paquet inférieur 40b comme représenté en figure 4. L'élément séparateur 30 se déplace donc sur l'extrémité horizontale 70 de gauche du bord supérieur de la plaque fixe 28, gravit le plan incliné 74 et parcourt la partie médiane surélevée 72 du bord supérieur de la plaque 28 pour s'arrêter à l'extrémité de cette partie médiane comme représenté en figure 6.In this position, the separating element 30 is on the left side of the stack in FIG. 4, the brush 60 being on the flap 76, and begins to move to the right, the brush 60 being driven in rotation at high speed in the direction indicated by the arrow 90, that is to say the anti-clockwise direction in FIG. 4. The brush 60 will therefore attack the edge of the upper packet 40a which is opposite its free margin and thus goes lift all the sheets from the upper pack 40a and move between the raised edge of the upper pack and the upper sheet of the lower pack 40b as shown in Figure 4. The separating element 30 therefore moves on the horizontal end 70 to the left of the edge upper part of the fixed plate 28, climbs the inclined plane 74 and runs through the raised middle part 72 of the upper edge of the plate 28 to stop at the end of this middle part as shown in FIG. 6.
Dans cette position, le bord du paquet supérieur 40a, qui se trouve le long de la plaque fixe 28, est suffisamment soulevé par la brosse 60 pour que la pince 34 puisse le saisir. Par déplacement de la pince 34, le paquet 40a est dégagé de sous les galets 86, emmené vers le moyen transporteur 36 et déposé sur celui-ci.In this position, the edge of the upper package 40a, which is located along the fixed plate 28, is sufficiently lifted by the brush 60 so that the clamp 34 can grasp it. By displacement of the clamp 34, the package 40a is released from under the rollers 86, taken to the conveyor means 36 and deposited thereon.
Lorsque le paquet supérieur 40a est retiré de la pile,
le volet 76 de gauche en figure 6 reste appuyé sur la marge libre du paquet immédiatement inférieur 40b, tandis que le volet 76 de droite s'incline vers le bas pour venir s'appuyer sur la marge libre du paquet inférieur 40c qui est décalé vers la droite. Dans cette position oblique inclinée, l'extrémité arrière du volet 76 masque l''élément récepteur de la cellule associée 80, ce qui se traduit par un signal de montée de la table élévatrice 16 qui se poursuit jusqu'à ce que le volet 76 de droite reprenne une position sensiblement horizontale représentée en figure 7, où son extrémité arrière vient de démasquer l'élément récepteur de la cellule associée 80.When the upper pack 40a is removed from the stack, the flap 76 on the left in FIG. 6 remains supported on the free margin of the immediately lower package 40b, while the flap 76 on the right tilts down to come to rest on the free margin of the lower package 40c which is shifted towards the right. In this inclined oblique position, the rear end of the shutter 76 mask the receiving element in the associated cell 80, which results in a lifting table of the up signal 16 which continues until the flap 76 on the right takes up a substantially horizontal position represented in FIG. 7, where its rear end has just unmasked the receiving element of the associated cell 80.
Au cours de ce mouvement de montée de la table élévatrice 16, l'élément séparateur 30 reprend son mouvement vers la droite à partir de la position représentée en figure 6, descend sur le plan incliné 74 et poursuit son mouvement jusqu'à ce que la brosse 60 se trouve sur la partie du volet 76 qui est appuyée sur la marge libre du paquet 40c.During this upward movement of the lifting table 16, the separating element 30 resumes its movement to the right from the position shown in FIG. 6, descends on the inclined plane 74 and continues its movement until the brush 60 is located on the part of the flap 76 which is supported on the free margin of the package 40c.
A ce moment, l'élément séparateur 30 est déplacé en sens inverse, c'est-à-dire vers la gauche en figure 7, et la brosse 60 est entraînée en rotation à vitesse élevée dans le sens des aiguilles d'une montre, pour venir attaquer la tranche du paquet supérieur 40b qui est opposée à sa marge libre. La brosse 60 soulève les feuilles du paquet supérieur 40b et se déplace jusqu'à l'extrémité gauche de la partie médiane surélevée 72 du bord supérieur de la plaque fixe 28, la pince 34 vient saisir le bord soulevé du paquet 40b et emmène ce paquet vers le moyen transporteur 36. Quand le paquet 40b est retiré de la pile, le volet 76 de gauche en figure 7 bascule vers le bas et vient s'appuyer sur la marge libre du paquet 40d situé i médiate- ment en dessous du paquet 40c. L'élément récepteur de la cellule 80 associée à ce volet est masqué par la partie arrière de ce volet, ce qui se traduit par un signal de
montée de la table élévatrice 16 jusqu'à ce que le volet 76 de gauche soit à nouveau en position sensiblement hori¬ zontale. On se retrouve alors dans la situation représentée en figure 4.At this moment, the separating element 30 is moved in the opposite direction, that is to say to the left in FIG. 7, and the brush 60 is rotated at high speed in the clockwise direction, to attack the edge of the upper packet 40b which is opposite its free margin. The brush 60 lifts the leaves of the upper pack 40b and moves to the left end of the raised middle part 72 of the upper edge of the fixed plate 28, the pliers 34 grips the raised edge of the pack 40b and takes this pack towards the conveyor means 36. When the package 40b is removed from the stack, the flap 76 on the left in FIG. 7 swings down and comes to rest on the free margin of the package 40d located i medially below the package 40c . The receiver element of cell 80 associated with this flap is hidden by the rear part of this flap, which results in a signal of rise of the lifting table 16 until the flap 76 on the left is again in a substantially horizontal position. We then find ourselves in the situation represented in FIG. 4.
Les paquets de feuilles 40 formant une pile portée par la table élévatrice 16 sont ainsi séparés et emmenés les uns après les autres vers le moyen transporteur 36.The packets of sheets 40 forming a stack carried by the lifting table 16 are thus separated and taken one after the other to the conveyor means 36.
Lorsque le dernier paquet de la pile a été retiré et emmené, la table élévatrice 16 redescend, dépose la plaque 18 sur les bords de l'ouverture 20 correspondante du plateau tournant 10, et ce dernier est entraîné en rotation sur une fraction de tour pour amener le magasin suivant au- dessus de la table élévatrice 16.When the last packet in the stack has been removed and taken away, the lifting table 16 descends, deposits the plate 18 on the edges of the corresponding opening 20 of the turntable 10, and the latter is rotated by a fraction of a turn to bring the next magazine above the lifting table 16.
Le dispositif selon l'invention comprend encore des moyens, représentés en figure 1, qui permettent de soulever l'élément séparateur 30 au-dessus du bord supérieur de la plaque fixe 28 et du paquet supérieur de la pile portée par la table élévatrice, et cela sans interrompre le déplacement alternatif de cet élément séparateur, par exemple lorsque les moyens prévus en aval de ce dispositif de séparation (moyen transporteur 36 ou machine à relier) sont arrêtés.The device according to the invention also comprises means, shown in FIG. 1, which make it possible to lift the separating element 30 above the upper edge of the fixed plate 28 and of the upper pack of the stack carried by the lifting table, and this without interrupting the reciprocating movement of this separating element, for example when the means provided downstream of this separation device (conveyor means 36 or binding machine) are stopped.
Ces moyens de soulèvement de l'élément séparateur 30 compren¬ nent une rampe 92 parallèle à la plaque fixe 28 et montée à pivotement autour d'un axe horizontal 94 perpendiculaire à cette plaque, et un moyen moteur, par exemple un vérin pneumatique 96, de déplacement de la rampe 92 en rotation autour de l'axe 94, entre une première position où elle se trouve sous 1élément séparateur 30 et n'a pas d'action sur celui-ci, et une seconde position où elle soulève l'élément séparateur 30 au-dessusdu bord supérieur de la plaque fixe 28.
These lifting means of the separating element 30 comprise a ramp 92 parallel to the fixed plate 28 and pivotally mounted around a horizontal axis 94 perpendicular to this plate, and a drive means, for example a pneumatic cylinder 96, of displacement of the ramp 92 in rotation about the axis 94, between a first position where it is under the separating element 30 and has no action thereon, and a second position where it lifts the element separator 30 above the upper edge of the fixed plate 28.
Claims
1. Dispositif de séparation de paquets de feuilles, en particulier de papier, formant une pile dans laquelle les paquets de feuilles (40) sont alternativement décalés d'un côté, puis de. l'autfe, de façon à présenter chacun une marge libre (42) d'un côté ou de l'autre de la pile, caractérisé en ce qu'il comprend une table élévatrice (16) portant la pile de paquets de feuilles, un élément séparateur (30) déplaçable entre les paquets de feuilles, des moyens (70, 72, 74, 76; 32, 66, 68) de guidage et de déplacement de l'élément séparateur (30), permettant de le positionner sur la marge libre du paquet (40b) situé immédiatement en des'sous du paquet supérieur (40a) de la pile, de l'engager sous la .feuille inférieure du paquet supérieur (40a) et de le déplacer vers la marge libre du paquet supérieur tout en soulevant au moins un bord de ce paquet supérieur, des moyens (34) de prise du paquet supérieur (40a) par son bord soulevé et de trans- port de ce paquet à l'écart de la pile, et des moyens (76, 80) de détection et de positionnement en hauteur, par rapport aux moyens de guidage de 1'élément séparateur (30), de la marge libre du paquet (40b) situé immédiate¬ ment en dessous du paquet supérieur (40a) de la pile.1. Device for separating packets of sheets, in particular of paper, forming a stack in which the packets of sheets (40) are alternately offset from one side, then from. the autfe, so as to each present a free margin (42) on one side or the other of the stack, characterized in that it comprises a lifting table (16) carrying the stack of bundles of sheets, a separating element (30) movable between the packets of sheets, means (70, 72, 74, 76; 32, 66, 68) for guiding and moving the separating element (30), making it possible to position it on the margin free from the package (40b) located immediately below the upper package (40a) of the stack, engage it under the bottom sheet of the upper package (40a) and move it to the free margin of the upper package while lifting at least one edge of this upper pack, means (34) for taking the upper pack (40a) by its raised edge and transporting this pack away from the stack, and means (76, 80 ) of detection and positioning in height, relative to the means for guiding the separating element (30), of the free margin of the package ( 40b) located immediately below the upper pack (40a) of the stack.
2. Dispositif selon la revendication 1, caractérisé en ce que les moyens de guidage de l'élément séparateur (30) comprennent, d'une part, deux volets (76) montés pivotants chacun autour d'un axe horizontal (78) d'un côté et de l'autre de la pile, les extrémités de ces volets venant en appui respectivement sur la marge libre du paquet supérieur (40a) de la pile et sur celle du paquet immédiatement inférieur (40b), et, d'autre part, une rampe (70, 72, 74) s 'étendant entre les deux volets (76) le long d'un bord de la pile et sur laquelle repose l'élément séparateur.2. Device according to claim 1, characterized in that the means for guiding the separating element (30) comprise, on the one hand, two flaps (76) pivotally mounted each around a horizontal axis (78) of one side and the other of the stack, the ends of these flaps coming to bear respectively on the free margin of the upper pack (40a) of the stack and on that of the immediately lower pack (40b), and, on the other hand , a ramp (70, 72, 74) extending between the two flaps (76) along an edge of the stack and on which rests the separating element.
3. Dispositif selon la revendication 2, caractérisé en ce que ladite rampe comprend une partie médiane (72) sur¬ élevée par rapport à ses extrémités (70).3. Device according to claim 2, characterized in that said ramp includes a middle portion (72) raised above relative to its ends (70).
4. Dispositif selon la revendication 2 ou 3, caractérisé en ce qu'il comprend une seconde rampe (92), sensiblement parallèle à la première, et sur laquelle peut reposer également l'élément séparateur (30), cette seconde rampe (92) étant montée pivotante autour de l'axe horizontal (94) de façon à pouvoir soulever temporairement l'élément séparateur (30) au-dessus de la première rampe et du paquet supérieur de l'a pile.4. Device according to claim 2 or 3, characterized in that it comprises a second ramp (92), substantially parallel to the first, and on which the separating element (30) can also rest, this second ramp (92) being pivotally mounted about the horizontal axis (94) so as to be able to lift temporarily the separator element (30) above the first ramp and the top packet of the cell.
5. Dispositif selon la revendication 2, caractérisé en ce que chaque volet (76) est associé à des moyens (80) de détection de sa position angulaire par rapport à son axe de pivotement (78), tels par exemple qu'une cellule photo-électrique, qui sont reliés à des moyens (82, 74) de commande du déplacement en hauteur de la table élévatri¬ ce (16).5. Device according to claim 2, characterized in that each flap (76) is associated with means (80) for detecting its angular position relative to its pivot axis (78), such as for example a photo cell -electric, which are connected to means (82, 74) for controlling the movement in height of the elevating table (16).
6. Dispositif selon l'une des revendications précédentes, caractérisé en ce que l'élément séparateur (30) comprend une brosse (60) annulaire ou cylindrique d'axe horizontal (62), entraînée en rotation autour de cet axe par des moyens moteurs réversibles (64), le sens de rotation de la brosse (60) étant tel qu'il tend à soulever les feuilles du paquet supérieur (40) lorsque la brosse vient engager la tranche de ce paquet, des moyens étant prévus pour arrêter la rotation de la brosse (60) lors de la prise du paquet supérieur et pour inverser son sens de rotation en vue de la séparation du paquet (40) suivant de la pile.6. Device according to one of the preceding claims, characterized in that the separating element (30) comprises a brush (60) annular or cylindrical with a horizontal axis (62), driven in rotation about this axis by motor means reversible (64), the direction of rotation of the brush (60) being such that it tends to lift the sheets of the upper pack (40) when the brush engages the edge of this pack, means being provided to stop the rotation of the brush (60) when taking the upper pack and to reverse its direction of rotation for the separation of the next pack (40) from the stack.
7. Dispositif selon l'une des revendications précédentes, caractérisé en ce que les paquets de feuilles (40) sont empilés sur une plaque support (18) reposant sur des galets de centrage (44) prévus sur la face supérieure de la table élévatrice (16), qui comprend également des moyens (46) d'immobilisation de la plaque support (18), tels par exemple qu'un électro-aimant.7. Device according to one of the preceding claims, characterized in that the sheet packages (40) are stacked on a support plate (18) resting on centering rollers (44) provided on the upper face of the lifting table ( 16), which also includes means (46) immobilization of the support plate (18), such as for example an electromagnet.
8. Dispositif selon la revendication 7, caractérisé en ce que la table élévatrice (16) est associée à des plaques verticales (26) escamotables, propres à venir en appui de chaque côté de la pile sur les marges libres (42) des paquets (40) pour centrer la pile et sa plaque support (18) sur la table élévatrice (16).8. Device according to claim 7, characterized in that the lifting table (16) is associated with vertical plates (26) retractable, capable of coming to bear on each side of the stack on the free margins (42) of the packages ( 40) to center the stack and its support plate (18) on the lifting table (16).
9. Dispositif selon la revendication 8, caractérisé en ce que les plaques verticales (26) sont fixes en hauteur et s 'engagent dans des découpes des bords correspondants de la table élévatrice (18).9. Device according to claim 8, characterized in that the vertical plates (26) are fixed in height and engage in cutouts of the corresponding edges of the lifting table (18).
10. Dispositif selon l'une des revendications 1 à 9, carac¬ térisé en ce que la plaque support (18) forme le fond mobile d'un magasin (12) d'alimentation du dispositif en pile de paquets de feuilles, -ce magasin (12) faisant par exemple partie d'un plateau tournant (10) comprenant plusieurs magasins (12) identiques.10. Device according to one of claims 1 to 9, charac¬ terized in that the support plate (18) forms the movable bottom of a magazine (12) for supplying the device with a stack of sheets packets, magazine (12) being, for example, part of a turntable (10) comprising several identical magazines (12).
11. Dispositif selon la revendication 10, caractérisé en ce que chaque magasin (12) comprend quatre cornières verticales (22) fixes dans lesquelles sont engagés les coins des paquets de feuilles (40) formant une pile.11. Device according to claim 10, characterized in that each store (12) comprises four vertical angles (22) fixed in which are engaged the corners of the packets of sheets (40) forming a stack.
12. Dispositif selon l'une des revendications 7 à 11, caractérisé en ce que la plaque support (18) est de forme incurvée, en portion de cylindre, avec l'un de ses bords droits plus bas que l'autre du côté de passage de l'élément séparateur (30).12. Device according to one of claims 7 to 11, characterized in that the support plate (18) is of curved shape, in cylinder portion, with one of its straight edges lower than the other on the side of passage of the separating element (30).
13. Dispositif selon l'une des revendications précédentes, caractérisé en ce qu'il comprend des galets d'appui (86) applicables sur le dessus de la pile le long d'un axe longitudinal parallèle à la direction de déplacement de l'élément séparateur (30). 13. Device according to one of the preceding claims, characterized in that it comprises support rollers (86) applicable on the top of the stack along a longitudinal axis parallel to the direction of movement of the element separator (30).
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT87900179T ATE52069T1 (en) | 1986-01-03 | 1986-12-31 | DEVICE FOR LIFTING PACKAGES OF SHEET, ESPECIALLY PAPER, FROM STACKS. |
DE8787900179T DE3670472D1 (en) | 1986-01-03 | 1986-12-31 | DEVICE FOR LIFTING UP PACKAGES, IN PARTICULAR PAPER, PACKS. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8600062A FR2592640B1 (en) | 1986-01-03 | 1986-01-03 | DEVICE FOR SEPARATING PACKETS OF SHEETS, PARTICULARLY PAPER, FORMING A STACK |
FR86/00062 | 1986-01-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1987004141A1 true WO1987004141A1 (en) | 1987-07-16 |
Family
ID=9330837
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR1986/000452 WO1987004141A1 (en) | 1986-01-03 | 1986-12-31 | Device for separating packets of sheets, particularly paper, forming a pile |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0252936B1 (en) |
DE (1) | DE3670472D1 (en) |
FR (1) | FR2592640B1 (en) |
WO (1) | WO1987004141A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0327858A1 (en) * | 1988-02-06 | 1989-08-16 | MINDA INDUSTRIEANLAGEN GmbH | Method for feeding punching machines, in-line machines or the like with packages of corrugated board sheets |
US5143510A (en) * | 1989-06-26 | 1992-09-01 | Kabushiki Kaisha Shinkawa | Lead frame separating device |
US5695314A (en) * | 1994-10-07 | 1997-12-09 | Giesecke & Devrient Gmbh | Apparatus and method for singling stacked cards |
EP0830303A1 (en) * | 1995-06-07 | 1998-03-25 | Standard Duplicating Machines Corporation | Paper set feeding |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2727951B1 (en) * | 1994-12-13 | 1997-01-17 | Danel Ferry | COLLECTING AND FILLING CASE DEVICE FOR FLAT DOCUMENTS |
US6234467B1 (en) | 1997-11-10 | 2001-05-22 | Kurt Runzi | Apparatus for stacking and sorting printed documents and feeding them to a finishing machine |
EP1127819A1 (en) * | 2000-02-22 | 2001-08-29 | C.P. Bourg S.A. | Sheet set feeder |
WO2002090226A1 (en) * | 2001-05-04 | 2002-11-14 | General Binding Corporation | Paper set feeding apparatus |
DK2657161T3 (en) * | 2012-04-26 | 2014-09-15 | Hugo Beck Maschb Gmbh & Co Kg | Method and apparatus for automatically feeding single leaf stacks from a printing machine to an adhesive binding machine. |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE261039C (en) * | ||||
US1653305A (en) * | 1926-07-24 | 1927-12-20 | Wayne E Myers | Automatic paper feed |
FR2381701A1 (en) * | 1977-02-28 | 1978-09-22 | Marquip Inc | DISCONTINUOUS POWER SUPPLY |
DE3219693A1 (en) * | 1982-05-26 | 1983-12-01 | Fa. Heinrich Baumann, 6000 Frankfurt | Device for forming processable partial piles from film sheets, in particular paper sheets |
-
1986
- 1986-01-03 FR FR8600062A patent/FR2592640B1/en not_active Expired
- 1986-12-31 DE DE8787900179T patent/DE3670472D1/en not_active Expired - Lifetime
- 1986-12-31 WO PCT/FR1986/000452 patent/WO1987004141A1/en active IP Right Grant
- 1986-12-31 EP EP19870900179 patent/EP0252936B1/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE261039C (en) * | ||||
US1653305A (en) * | 1926-07-24 | 1927-12-20 | Wayne E Myers | Automatic paper feed |
FR2381701A1 (en) * | 1977-02-28 | 1978-09-22 | Marquip Inc | DISCONTINUOUS POWER SUPPLY |
DE3219693A1 (en) * | 1982-05-26 | 1983-12-01 | Fa. Heinrich Baumann, 6000 Frankfurt | Device for forming processable partial piles from film sheets, in particular paper sheets |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0327858A1 (en) * | 1988-02-06 | 1989-08-16 | MINDA INDUSTRIEANLAGEN GmbH | Method for feeding punching machines, in-line machines or the like with packages of corrugated board sheets |
US5143510A (en) * | 1989-06-26 | 1992-09-01 | Kabushiki Kaisha Shinkawa | Lead frame separating device |
US5695314A (en) * | 1994-10-07 | 1997-12-09 | Giesecke & Devrient Gmbh | Apparatus and method for singling stacked cards |
EP0830303A1 (en) * | 1995-06-07 | 1998-03-25 | Standard Duplicating Machines Corporation | Paper set feeding |
EP0830303A4 (en) * | 1995-06-07 | 2000-02-02 | Standard Duplicating Machines | Paper set feeding |
Also Published As
Publication number | Publication date |
---|---|
DE3670472D1 (en) | 1990-05-23 |
FR2592640B1 (en) | 1988-04-29 |
EP0252936B1 (en) | 1990-04-18 |
FR2592640A1 (en) | 1987-07-10 |
EP0252936A1 (en) | 1988-01-20 |
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