EP0356283A1 - System for conveying sheet products to a machine for treating same - Google Patents

System for conveying sheet products to a machine for treating same Download PDF

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Publication number
EP0356283A1
EP0356283A1 EP89402162A EP89402162A EP0356283A1 EP 0356283 A1 EP0356283 A1 EP 0356283A1 EP 89402162 A EP89402162 A EP 89402162A EP 89402162 A EP89402162 A EP 89402162A EP 0356283 A1 EP0356283 A1 EP 0356283A1
Authority
EP
European Patent Office
Prior art keywords
storage
machine
shaft
gripping means
magazine
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
Application number
EP89402162A
Other languages
German (de)
French (fr)
Other versions
EP0356283B1 (en
Inventor
Jean-Claude Serre
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Otor SA
Original Assignee
Embal-Systems
Otor SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Embal-Systems, Otor SA filed Critical Embal-Systems
Priority to AT89402162T priority Critical patent/ATE76383T1/en
Publication of EP0356283A1 publication Critical patent/EP0356283A1/en
Application granted granted Critical
Publication of EP0356283B1 publication Critical patent/EP0356283B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B65H3/0808—Suction grippers
    • B65H3/0816—Suction grippers 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
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/26—Delivering or advancing articles from machines; Advancing articles to or into piles by dropping the articles
    • B65H29/32—Delivering or advancing articles from machines; Advancing articles to or into piles by dropping the articles from pneumatic, e.g. suction, carriers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H5/00—Feeding articles separated from piles; Feeding articles to machines
    • B65H5/08—Feeding articles separated from piles; Feeding articles to machines by grippers, e.g. suction grippers
    • 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 system for feeding sheet products to a machine for processing said products.
  • the system according to the invention is more particularly suitable, although not exclusively, for the continuous feeding of cardboard blanks from a machine allowing the manufacture of packaging from said blanks.
  • the system according to the invention is not limited to this type of product, but could also be used for products such as plates, panels, etc. made of different materials, other than paper, such as, for example, metal, glass, synthetic material, etc.
  • some of the systems for feeding sheet products, such as cardboard blanks, to a machine intended for making packaging or the like from said blanks include a storage magazine, arranged upstream of the machine and comprising a stack of cardboard blanks, and a transfer device authorizing the taking of the upper blank of the stack to bring it towards the table of the machine and place it thereon.
  • the object of the present invention is in particular to overcome this drawback and relates to a system for supplying sheet products to a machine for processing said products, which prevents an operator from frequently reconstituting the storage magazine of said system while allowing the machine to '' be regularly and automatically fed sheet products without interruption.
  • the system for bringing sheet products to a deposit area of a machine for processing said sheet products comprising means for storing said sheet products and a device for transferring, one by one, said sheets. products of the storage means at said machine, is remarkable, according to the invention, in that said storage means comprise at least first and second magazines, and, in that said transfer device comprises at least first and second means for gripping said products, arranged and controlled so that, when one of the gripping means grasps the product in the upper sheet of the corresponding storage magazine, simultaneously, the other gripping means deposits on said zone for depositing the machine the product in upper sheet, previously seized from the other storage store and then transferred to said machine, and vice versa.
  • the system offers greater operating autonomy allowing the machine to be supplied continuously, without an operator intervening frequently.
  • the system allows the sheet products to be brought to a high speed in the direction of said machine.
  • said transfer device may comprise two arms fixed to a shaft capable of being driven alternately in rotation by a motor member, each of said arms carrying one of said gripping means and being capable of moving between two separate positions, one of which is located above the corresponding storage magazine and the other of which is located above the machine removal area.
  • the second gripping means of the other arm deposits the upper sheet, previously gripped of the second storage magazine, on the machine removal zone, then, by rotation of the arms driven by the motor member via said shaft, the second gripping means, stripped of sheet, comes into contact with the upper sheet of the second means storage, while, simultaneously, the first gripping means deposits on the machine the sheet, previously gripped.
  • the movement of said arms takes place in a plane parallel to the plane of said sheet products, the movement of said gripping means being carried out orthogonally to these planes and parallel to the shaft driven alternately in rotation.
  • said arms fixed by one of their ends to said shaft, form between them an angle of 90 °
  • said motor member which drives in rotation through the shaft said arms, being a motor reversible electric.
  • each of said gripping means may comprise a jack whose cylinder is linked to the corresponding arm of the transfer device and whose rod is provided at its end with controllable suction cups capable of ensuring the taking up and the transfer of a product in sheet of the storage magazine corresponding to the removal zone of said machine.
  • the rotation of the arms via the drive member and the shaft takes place when the jacks are in the high position, the drive member does not operate when the jacks are in the low position.
  • each gripping means is capable of occupying two distinct positions along said corresponding arm, a first position, distant from the axis of rotation of the shaft, corresponding to a position for which said means of gripping is located above the machine removal zone, and a second position, close to the axis of rotation of said shaft, corresponding to a position for which said gripping means is located above the storage magazine corresponding.
  • This arrangement thus makes it possible to reduce the spacing between the two storage magazines, and, consequently, to reduce the space requirement of the system in the workshop.
  • the two stores can thus be arranged practically side by side.
  • each gripping means is mounted on the corresponding arm by means of a support capable of sliding, during the rotation of said shaft, along the arm between the two said positions, close and distant from the axis of rotation of said shaft, thanks to a connecting rod, one end of which is fixed to the chassis of said system and the other end of which is connected to the corresponding gripping means.
  • the two connecting rods of the chassis to the gripping means move in superimposed planes, parallel to the plane formed by said arms.
  • said system may include means for detecting and upgrading the sheet products of each storage store. These means make it possible to bring, each time a sheet has been gripped and then transferred to the depositing area of the machine, the sheet product then superior of each stack to a determined reference level, so that the suction cups equipping them each time come into contact with said product in upper sheet to grasp it, then transfer it.
  • said means for detecting and leveling each store comprises at least one photoelectric cell fixed to the chassis of said system and a control member allowing the mounting of said store, so that when the product in the upper sheet of said magazine is seized then transferred, a light beam is transmitted by said cell, which causes the actuation of said control member and the rise of said magazine until the new top sheet of the stack interrupts the transmission of the light beam, then stopping said control member.
  • replacement magazines each containing a stack of sheet products can be provided upstream of said first and second storage magazines, said storage and replacement magazines based on controllable displacement means enabling said replacement magazines to be replaced by said storage magazines, when the sheet products of the latter are used up.
  • the operating autonomy of said system is further increased, which allows the operator to intervene, for example, only daily, or even less, in the various machine stores.
  • said first and second storage magazines as well as said replacement magazines respectively, arranged upstream from the storage magazines, are aligned by forming two parallel queues, the transfer device being provided between the two queues near the drop-off area. of said machine.
  • Each row of magazines can then be arranged on controllable displacement means comprising a belt conveyor driven by a motor, and, moreover, the storage and replacement magazines can advantageously be arranged on the conveyor of each queue in a regularly spaced manner. .
  • the magazines aligned in N stacks can be driven in translation by the displacement means so that, when the stack of storage magazines is exhausted, the following N stacks advance by a step corresponding to the distance separating two successive stacks, the first of the replacement magazine batteries replacing the storage magazine battery, and so on.
  • the system according to the invention is particularly intended for feeding sheet products, such as cardboard blanks, to a machine for processing said products.
  • the system 1 comprises means 2 for storing sheet products, namely cardboard blanks 3 arranged in the form of a stack 4, and a device 5 for transferring, one by one, the blanks 3 of the storage means 2 at a deposit area 6 of a processing machine 7.
  • the storage means 2 comprise a first, 8, and a second, 9, magazines, each magazine consisting of a stack 4 of cardboard blanks 3 resting on a pallet 10, which is arranged on controllable displacement means 11. Behind each storage magazine 8 and 9 is provided at least one replacement magazine, respectively 12 and 14, identical in constitution to that of stores 8 and 9. It can be seen, in particular with regard to FIG. 2, that the storage stores 8 and 9 and the replacement stores 12 and 14, respectively arranged upstream of the stores 8 and 9, form two parallel rows, the transfer device 5 then being located between the two rows, close to the removal zone 6 of the machine.
  • the controllable displacement means 11 of each row comprise a conveyor 15, for example of the belt type, capable of being set in motion, which thus makes it possible to bring the replacement magazines 12 and 14 to replace the storage magazines 8 and 9, when the cardboard blanks 3 of the latter are exhausted, as will be seen later.
  • Each conveyor 15 can advantageously be associated with a device, not shown, for forming stacks of products resting on the pallets of the storage and replacement stores.
  • a device for forming stacks of products resting on the pallets of the storage and replacement stores.
  • Such a device is, for example, described in French patent application FR-A-88 10830 filed in the name of the Applicant and makes it possible to form stacks of strictly vertical products while being, moreover, regularly spaced along the conveyor .
  • the storage stores 8, 9 and replacement 12, 14 thus offer the system considerable autonomy in operation, which allows the processing machine 7 intended, for example, to produce packaging from said blanks, to be able to operate without interruption and automatically for a long time.
  • the transfer device 5 schematically illustrated in FIGS. 1 to 3, comprises first, 18, and second, 19, means for gripping said sheet products, that is to say, in this application, the blanks 3 of cardboard.
  • first and second gripping means are arranged and controlled so that, when one of the gripping means grasps the blank upper of the corresponding storage magazine, simultaneously, the other gripping means deposits on the removal zone of the machine the upper blank, previously gripped from the other storage magazine and then transferred to the machine, and vice versa.
  • FIGS. 1 to 3 it can be seen that the first gripping means 18 is ready to grip the upper blank 3 of the stack 4 of the magazine 8, while the second gripping means 19 is ready to deposit on the area 6 of the machine the blank 3 previously entered from the stack 4 of the magazine 9, then transferred.
  • the device 5 thus operates in the manner of a turnstile, each gripping means moving by alternating rotation, between two distinct positions.
  • each conveyor 15 is, for example, made up of two profiles 23, parallel and spaced, and two endless belts 24, each cooperating with a profile, capable of being driven, in a synchronized manner, in rotation by pulleys.
  • each conveyor (shown in phantom in Figure 4), on which the pallets 10 of the storage and replacement stores rest, are set in motion by an electric motor, respectively 25 and 26.
  • L drive of each motor 25 and 26, fixed to the chassis 20, to the bands of the corresponding conveyor is carried out by means of a mechanism 28 with eccentric and belts 29, well known in this field, which allows a slow and progressive starting of the conveyor, then a substantially constant speed thereof, to be completed by a gradual deceleration until stopping.
  • This mechanism 28 thus allows said stacks of products to remain plumb on each conveyor, avoiding their tilting.
  • the path of the belts 29 of the mechanism 28 is illustrated in dashed lines in FIG. 4.
  • the transfer device 5 comprises two arms 30 and 31 fixed to a shaft 32 capable of being rotated alternately by a motor member 33 fixed to one of the side members of the chassis 20.
  • the arm 30 carries the first gripping means 18, while the arm 31 is associated with the second gripping means 19.
  • Each arm 30 and 31 is thus capable of moving between two distinct positions, one of which is located above the corresponding storage magazine and the other of which is located above the machine removal area.
  • the gripping means 18 of the arm 30 is above the stack 4 of the storage magazine 8, while the gripping means 19 of the arm 31 is above the removal zone 6 of the machine 7.
  • the drive member 33 is advantageously a reversible electric motor.
  • the drive of the shaft 32 around the axis of rotation 34 thereof, orthogonal to the plane of said blanks is alternating, each arm moving between the two positions in a plane parallel to said blanks, then that the movement of the gripping means takes place orthogonally to these planes and parallel to the axis of rotation 34 of the shaft 32.
  • the arms 30 and 31 are fixed by one of their ends in the vicinity of the upper end of the shaft 32 by forming an angle of 90 ° between them.
  • the two arms linked to the shaft 32 then operate in the manner of a turnstile, each arm passing alternately and vice versa from one position to the other.
  • connection between the reversible motor 33 and the shaft 32 is produced, for example, by means of a belt transmission 36 and a slide mechanism 37 comprising two levers 38, 39 which cooperate with the other, as shown in FIGS. 4 and 5, the lever 39 being linked to the shaft 32. It is thus understood that, when the motor 33 is actuated, the two levers will occupy the position illustrated in dashed lines on Figure 5.
  • the gripping means 18 and 19 are identical and each of them comprises a jack, respectively 40 and 41, whose cylinder, 40A and 41A, is fixed to a support, respectively 42 and 43, linked to the corresponding arm, and whose rod, 40B and 41B, is provided at its end with a plate, respectively 44 and 45, carrying controllable suction cups 46 capable of ensuring the taking up and the transfer of a blank from the storage magazine corresponding to the removal area of the machine.
  • each jack 40 and 41 is vertical, orthogonal to the plane of the blanks, each jack being able to occupy two extreme operating positions, high and low.
  • the cylinders have an oval section which prevents, in use, the rod of each of them from rotating relative to the cylinder and thus maintaining the same appropriate position of the suction cups relative to the blanks.
  • each gripping means 18, 19 is capable of occupying two distinct positions along the corresponding arm 30, 31, a first position, distant from the axis of rotation 34 of the shaft 32, corresponding to a position for which the gripping means is located above the removal zone 6 of the machine, and, a second position, close to the axis of rotation 34 of said shaft, corresponding to a position for which said means gripper is located at the corresponding storage store.
  • this arrangement makes it possible to reduce the spacing between the two conveyors 15 on which the storage and replacement magazines rest.
  • each support 42 and 43 associating the corresponding jack 40,41 with the corresponding arms 30,31 is capable of sliding, during the rotation of the shaft 34, along of his arm between the two positions, close and remote from the axis of rotation 34 of the shaft 32, by means of a connecting rod, respectively 50 and 51, one end of which is fixed to the frame 20 and the other end of which is connected to the corresponding jack.
  • a connecting rod respectively 50 and 51, one end of which is fixed to the frame 20 and the other end of which is connected to the corresponding jack.
  • each arm 30 and 31 advantageously consists of two rods 30A, 30B, and, respectively, 31A, 31B, parallel and spaced apart, and being arranged in a vertical plane, orthogonal to the blanks 3
  • Each of the supports 42 and 43 is mounted on its corresponding arm by four rolling bearings 48, two bearings 48 cooperating with each rod.
  • the connecting rod 50 is fixed at one of its ends at 52 to one of the sections of the chassis 20, while the other end is articulated at 53 at the upper end of the jack 40.
  • the connecting rod 51 is fixed at one of its ends at 54 to a profile, opposite the previous one, of the chassis 20, while the other end is articulated at 55 at the upper end of the jack 41.
  • the connecting rod 51 is bent, while the connecting rod 50 is rectilinear, the displacement of the two connecting rods relative to the articulation points of the chassis taking place in superimposed planes, parallel to the blanks 3 and orthogonal to the axis of rotation 34 of the shaft 32.
  • means are provided for detecting and leveling 59 the cardboard blanks contained in each storage magazine.
  • These means 59 comprise, for each store, a photoelectric cell, respectively 60 and 61, fixed to the chassis 20 at a pre-established reference level, as shown in FIG. 7, and a control member, respectively 62 and 63 , allowing the rise of the corresponding storage magazine each time the upper blank 3 of the stack has been gripped and then transferred by the corresponding gripping means.
  • Removing the top sheet from one of the batteries causes transmission of a light beam from the cell to a reflector 60a or 61a which returns the beam to the cell, which causes the actuation of the corresponding control member and the rise of the magazine until the new top sheet of the stack interrupts the transmission of the light beam then stopping said control member.
  • the light beam of each cell has been shown in dotted lines above the upper blank of the corresponding stack.
  • each storage magazine comprises, for example, an electric motor 64 fixed to the upper part of the chassis 20, said motor being capable of cause the storage magazine to rise and / or descend, with which it is associated, by means of a belt 65 and a movable support 66 linked to each store and capable of sliding, when the movement of the belt 65, along two rails 69 formed on vertical profiles 67 of the chassis 20, the support 66 sliding on the rails by means of rollers 68.
  • an electric motor 64 fixed to the upper part of the chassis 20, said motor being capable of cause the storage magazine to rise and / or descend, with which it is associated, by means of a belt 65 and a movable support 66 linked to each store and capable of sliding, when the movement of the belt 65, along two rails 69 formed on vertical profiles 67 of the chassis 20, the support 66 sliding on the rails by means of rollers 68.
  • the rod 40B of the jack 40 descends towards the stack 4 of the magazine 8 until that the suction cups 46 equipping it come into contact with the blank 3 of the magazine 8. As soon as the suction cups 46 land on the blank 3 to grip it, the jack 40 stops.
  • the jacks are then raised to their high position, the jack 40 being provided with a blank 3 thanks to the suction cups.
  • the jacks As soon as the jacks reach the high position, they trigger contacts which cause the reversible motor 33 to rotate. At this moment, the shaft 32, by means of the belt 36 and the mechanism 37, is driven in rotation 90 ° around its axis 34 by the motor 33. The rotation of the shaft 32 in turn causes the rotation of the arm 30, carrying the actuator 40, from the storage magazine 8 to the removal zone 6, while the arm 31, carrying the jack 41, is driven from the deposit zone 6 towards the storage magazine 9. Concomitantly, the jack 40 passes from a position close to the axis of rotation 34 of the shaft 32 to a position distant from the axis 34, above the removal zone, thanks to the connecting rod 50 and to the sliding support 42 to which the jack 40 is fixed. As for the jack 41, it is returned to the position close to the axis 34 by the connecting rod 51 and its sliding support 43. The trajectories of the jacks 40 and 41 between their two posi Separate items are shown in phantom in Figure 6.
  • the photoelectric cell 60 transmits a light beam towards its reflector 60a which returns the beam to it.
  • the motor 64 stops, the battery thus always being at a constant level.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Warehouses Or Storage Devices (AREA)
  • Photographic Developing Apparatuses (AREA)
  • Making Paper Articles (AREA)
  • Advancing Webs (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)

Abstract

- The invention relates to a system for conveying sheet products to a depositing zone of a machine for treating the said sheet products, the said system comprising means (2) for storing the products (3) and a device (5) for transferring the said products one by one from the storage means (2) to the said machine (7). - According to the invention, the said storage means (2) comprise first (8) and second (9) magazines and the said transfer device (5) comprises first (18) and second (19) means for gripping the said products arranged and controlled such that, when one of the gripping means seizes the upper sheet product of the corresponding storage magazine, the other gripping means simultaneously deposits the upper sheet product on the said depositing zone (6) of the machine, the upper sheet product having previously been taken from the other storage magazine and then transferred towards the said machine, and vice versa. <IMAGE>

Description

La présente invention concerne un système pour amener des produits en feuille à une machine de traitement desdits produits.The present invention relates to a system for feeding sheet products to a machine for processing said products.

Le système selon l'invention est plus particulièrement approprié, quoique non exclusivement, à l'alimentation en continu de flans de carton d'une machine permettant la fabrication d'emballages à partir desdits flans. Cependant, il va de soi que le système selon l'invention n'est pas limité à ce type de produits, mais pourrait être également utilisé pour des produits tels que des plaques, panneaux, etc... réalisés en différentes matières, autres que le papier, telles que, par exemple, en métal, en verre, en matière synthétique, etc...The system according to the invention is more particularly suitable, although not exclusively, for the continuous feeding of cardboard blanks from a machine allowing the manufacture of packaging from said blanks. However, it goes without saying that the system according to the invention is not limited to this type of product, but could also be used for products such as plates, panels, etc. made of different materials, other than paper, such as, for example, metal, glass, synthetic material, etc.

Actuellement, certains des systèmes pour amener des produits en feuille, tels que des flans de carton, à une machine destinée à la réalisation d'emballages ou analogues à partir desdits flans, comportent un magasin de stockage, disposé en amont de la machine et comprenant une pile de flans de carton, et un dispositif de transfert autorisant la prise du flan supérieur de la pile pour l'amener vers la table de la machine et le déposer sur celle-ci.Currently, some of the systems for feeding sheet products, such as cardboard blanks, to a machine intended for making packaging or the like from said blanks, include a storage magazine, arranged upstream of the machine and comprising a stack of cardboard blanks, and a transfer device authorizing the taking of the upper blank of the stack to bring it towards the table of the machine and place it thereon.

Avec les machines actuelles, de plus en plus performantes et automatisées, la cadence de fabrication des emballages est élevée, de sorte que le magasin de stockage doit être fréquemment reconstitué. Pour cela, un opérateur procède régulièrement à réalimenter le magasin de stockage de chacune desdites machines disposées dans l'atelier. Par conséquent, l'opérateur, qui est affecté, par exemple, à l'entretien courant des machines installées dans l'atelier de façon à permettre leur fonctionnement continu, doit interrompre fréquemment ses occupations pour réalimenter les magasins de stockage des machines.With current machines, more and more efficient and automated, the production rate of packaging is high, so that the storage warehouse must be frequently replenished. For this, an operator regularly proceeds to replenish the storage store of each of said machines arranged in the workshop. Consequently, the operator, who is assigned, for example, to the routine maintenance of the machines installed in the workshop so as to allow their continuous operation, must frequently interrupt his occupations in order to replenish the machine storage stores.

La présente invention a notamment pour objet de pallier cet inconvénient et concerne un système pour amener des produits en feuille à une machine de traitement desdits produits, qui évite à un opérateur de reconstituer fréquemment le magasin de stockage dudit système tout en permettant à la machine d'être régulièrement et automati­quement alimentée en produits en feuille sans interruption.The object of the present invention is in particular to overcome this drawback and relates to a system for supplying sheet products to a machine for processing said products, which prevents an operator from frequently reconstituting the storage magazine of said system while allowing the machine to '' be regularly and automatically fed sheet products without interruption.

A cet effet, le système pour amener des produits en feuille à une zone de dépose d'une machine de traitement desdits produits en feuille, ledit système comportant des moyens de stockage desdits produits en feuille et un dispositif pour transférer, un à un, lesdits produits des moyens de stockage à ladite machine, est remarquable, selon l'inven­tion, en ce que lesdits moyens de stockage comprennent au moins des premier et second magasins, et, en ce que ledit dispositif de transfert comporte au moins des premier et second moyens de préhension desdits produits, agencés et commandés de façon que, lorsque l'un des moyens de préhension saisit le produit en feuille supérieur du magasin de stockage correspondant, simultanément, l'autre moyen de préhension dépose sur ladite zone de dépose de la machine le produit en feuille supérieur, préalablement saisi de l'autre magasin de stockage puis transféré vers ladite machine, et réciproquement.To this end, the system for bringing sheet products to a deposit area of a machine for processing said sheet products, said system comprising means for storing said sheet products and a device for transferring, one by one, said sheets. products of the storage means at said machine, is remarkable, according to the invention, in that said storage means comprise at least first and second magazines, and, in that said transfer device comprises at least first and second means for gripping said products, arranged and controlled so that, when one of the gripping means grasps the product in the upper sheet of the corresponding storage magazine, simultaneously, the other gripping means deposits on said zone for depositing the machine the product in upper sheet, previously seized from the other storage store and then transferred to said machine, and vice versa.

Ainsi, grâce à l'invention, le système offre une plus grande autonomie de fonctionnement permettant d'alimenter la machine de façon continue, sans qu'un opérateur intervienne fréquemment. De plus, grâce à l'agencement des deux moyens de préhension, qui agissent, chacun, sur un magasin de stockage, le système permet d'amener à une cadence élevée les produits en feuille en direction de ladite machine.Thus, thanks to the invention, the system offers greater operating autonomy allowing the machine to be supplied continuously, without an operator intervening frequently. In addition, thanks to the arrangement of the two gripping means, which each act on a storage magazine, the system allows the sheet products to be brought to a high speed in the direction of said machine.

Dans un exemple de réalisation, ledit dispositif de transfert peut comporter deux bras fixés à un arbre susceptible d'être entraîné alternativement en rotation par un organe moteur, chacun desdits bras portant l'un desdits moyens de préhension et étant susceptible de se déplacer entre deux positions distinctes dont l'une est située au-dessus du magasin de stockage correspondant et dont l'autre est située au-dessus de la zone de dépose de la machine.In an exemplary embodiment, said transfer device may comprise two arms fixed to a shaft capable of being driven alternately in rotation by a motor member, each of said arms carrying one of said gripping means and being capable of moving between two separate positions, one of which is located above the corresponding storage magazine and the other of which is located above the machine removal area.

Ainsi, lorsque, par exemple, le premier moyen de préhension d'un des bras est au contact de la feuille supérieure du premier magasin de stockage, simultanément, le second moyen de préhension de l'autre bras dépose la feuille supérieure, préalablement saisie du second magasin de stockage, sur la zone de dépose de la machine, puis, par rotation des bras entrainés par l'organe moteur via ledit arbre, le second moyen de préhension, démuni de feuille, vient au contact de la feuille supérieure du second moyen de stockage, tandis que, simultanément, le premier moyen de préhension dépose sur la machine la feuille, prélablement saisie.Thus, when, for example, the first gripping means of one of the arms is in contact with the upper sheet of the first storage magazine, simultaneously, the second gripping means of the other arm deposits the upper sheet, previously gripped of the second storage magazine, on the machine removal zone, then, by rotation of the arms driven by the motor member via said shaft, the second gripping means, stripped of sheet, comes into contact with the upper sheet of the second means storage, while, simultaneously, the first gripping means deposits on the machine the sheet, previously gripped.

De préférence, le déplacement desdits bras s'effectue dans un plan parallèle au plan desdits produits en feuille, le déplacement desdits moyens de préhension s'effectuant orthogonalement à ces plans et parallèlement à l'arbre entraîné alternativement en rotation.Preferably, the movement of said arms takes place in a plane parallel to the plane of said sheet products, the movement of said gripping means being carried out orthogonally to these planes and parallel to the shaft driven alternately in rotation.

Dans un mode préféré de réalisation, lesdits bras, fixés par une de leurs extrémités audit arbre, forment entre eux un angle de 90°, ledit organe moteur, qui entraîne en rotation par l'intermédiaire de l'arbre lesdits bras, étant un moteur électrique réversible.In a preferred embodiment, said arms, fixed by one of their ends to said shaft, form between them an angle of 90 °, said motor member, which drives in rotation through the shaft said arms, being a motor reversible electric.

Par ailleurs, chacun desdits moyens de préhension peut comprendre un vérin dont le cylindre est lié au bras correspondant du dispositif de transfert et dont la tige est munie à son extrémité de ventouses commandables susceptibles d'assurer la prise et le transfert d'un produit en feuille du magasin de stockage correspondant à la zone de dépose de ladite machine. La rotation des bras par l'intermédiaire de l'organe moteur et de l'arbre s'effectue lorsque les vérins sont en position haute, l'organe moteur ne fonctionnant pas lorsque les vérins sont en position basse.In addition, each of said gripping means may comprise a jack whose cylinder is linked to the corresponding arm of the transfer device and whose rod is provided at its end with controllable suction cups capable of ensuring the taking up and the transfer of a product in sheet of the storage magazine corresponding to the removal zone of said machine. The rotation of the arms via the drive member and the shaft takes place when the jacks are in the high position, the drive member does not operate when the jacks are in the low position.

Selon une autre caractéristique dudit dispositif, chaque moyen de préhension est susceptible d'occuper deux positions distinctes le long dudit bras correspondant, une première position, éloignée de l'axe de rotation de l'arbre, correspondant à une position pour laquelle ledit moyen de préhension est situé au-dessus de la zone de dépose de la machine, et, une seconde position, proche de l'axe de rotation dudit arbre, correspondant à une position pour laquelle ledit moyen de préhension est situé au-dessus du magasin de stockage correspondant.According to another characteristic of said device, each gripping means is capable of occupying two distinct positions along said corresponding arm, a first position, distant from the axis of rotation of the shaft, corresponding to a position for which said means of gripping is located above the machine removal zone, and a second position, close to the axis of rotation of said shaft, corresponding to a position for which said gripping means is located above the storage magazine corresponding.

Cet agencement permet ainsi de réduire l'écartement entre les deux magasins de stockage, et, par conséquent, de diminuer la zone d'encombrement du système dans l'atelier. Les deux magasins peuvent ainsi être disposés pratiquement côte à côte.This arrangement thus makes it possible to reduce the spacing between the two storage magazines, and, consequently, to reduce the space requirement of the system in the workshop. The two stores can thus be arranged practically side by side.

Dans un mode préféré de réalisation, chaque moyen de préhension est monté sur le bras correspondant par l'intermédiaire d'un support susceptible de coulisser, lors de la rotation dudit arbre, le long du bras entre les deuxdites positions, proche et éloignée de l'axe de rotation dudit arbre, grâce à une bielle dont une extrémité est fixée au châssis dudit système et dont l'autre extrémité est reliée au moyen de préhension correspondant.In a preferred embodiment, each gripping means is mounted on the corresponding arm by means of a support capable of sliding, during the rotation of said shaft, along the arm between the two said positions, close and distant from the axis of rotation of said shaft, thanks to a connecting rod, one end of which is fixed to the chassis of said system and the other end of which is connected to the corresponding gripping means.

Avantageusement, les deux bielles de liaison du châssis aux moyens de préhension se déplacent dans des plans superpo­sés, parallèles au plan formé par lesdits bras.Advantageously, the two connecting rods of the chassis to the gripping means move in superimposed planes, parallel to the plane formed by said arms.

Selon une autre caractéristique de l'invention, ledit système peut comporter des moyens de détection et de mise à niveau des produits en feuille de chaque magasin de stockage. Ces moyens permettent d'amener, à chaque fois qu'une feuille a été saisie puis transférée vers la zone de dépose de la machine, le produit en feuille alors supérieur de chaque pile à un niveau de référence déterminé, pour que les ventouses les équipant viennent à chaque fois au contact dudit produit en feuille supérieur pour le saisir, puis le transférer.According to another characteristic of the invention, said system may include means for detecting and upgrading the sheet products of each storage store. These means make it possible to bring, each time a sheet has been gripped and then transferred to the depositing area of the machine, the sheet product then superior of each stack to a determined reference level, so that the suction cups equipping them each time come into contact with said product in upper sheet to grasp it, then transfer it.

Dans un mode particulier de réalisation, lesdits moyens de détection et de mise à niveau de chaque magasin comportent au moins une cellule photo-électrique fixée au châssis dudit système et un organe de commande permettant la montée dudit magasin, de façon que, lorsque le produit en feuille supérieure dudit magasin est saisi puis transféré, un faisceau lumineux est transmis par ladite cellule, ce qui provoque l'actionnement dudit organe de commande et la montée dudit magasin jusqu'à ce que la nouvelle feuille supérieure de la pile interrompe la transmission du faisceau lumineux, stoppant alors ledit organe de commande.In a particular embodiment, said means for detecting and leveling each store comprises at least one photoelectric cell fixed to the chassis of said system and a control member allowing the mounting of said store, so that when the product in the upper sheet of said magazine is seized then transferred, a light beam is transmitted by said cell, which causes the actuation of said control member and the rise of said magazine until the new top sheet of the stack interrupts the transmission of the light beam, then stopping said control member.

Par ailleurs, selon une autre caractéristique dudit système, des magasins de remplacement contenant chacun une pile de produits en feuille peuvent être prévus en amont desdits premier et second magasins de stockage, lesdits magasins de stockage et de remplacement reposant sur des moyens de déplacement commandables permettant d'amener lesdits magasins de remplacement en substitution desdits magasins de stockage, lorsque les produits en feuille de ces derniers sont épuisés.Furthermore, according to another characteristic of said system, replacement magazines each containing a stack of sheet products can be provided upstream of said first and second storage magazines, said storage and replacement magazines based on controllable displacement means enabling said replacement magazines to be replaced by said storage magazines, when the sheet products of the latter are used up.

Ainsi, l'autonomie de fonctionnement dudit système est encore accrue, ce qui permet à l'opérateur de n'intervenir, par exemple, que quotidiennement, voire moins, sur les différents magasins des machines.Thus, the operating autonomy of said system is further increased, which allows the operator to intervene, for example, only daily, or even less, in the various machine stores.

Avantageusement, lesdits premier et second magasins de stockage ainsi que lesdits magasins de remplacement respectivement, disposés en amont des magasins de stockage, sont alignés en formant deux files parallèles, le dispositif de transfert étant prévu entre les deux files à proximité de la zone de dépose de ladite machine. Chaque file de magasins peut alors être disposée sur des moyens de déplacement commandables comportant un transporteur à bande entraîné par un moteur, et, de plus, les magasins de stockage et de remplacement peuvent avantageusement être disposés sur le transporteur de chaque file de façon régulièrement espacée.Advantageously, said first and second storage magazines as well as said replacement magazines respectively, arranged upstream from the storage magazines, are aligned by forming two parallel queues, the transfer device being provided between the two queues near the drop-off area. of said machine. Each row of magazines can then be arranged on controllable displacement means comprising a belt conveyor driven by a motor, and, moreover, the storage and replacement magazines can advantageously be arranged on the conveyor of each queue in a regularly spaced manner. .

Ainsi, les magasins alignés en N piles peuvent être entraînés en translation par les moyens de déplacement de façon que, lorsque la pile de magasins de stockage est épuisée, les N piles suivantes avancent d'un pas correspon­dant à la distance séparant deux piles successives, la première des piles des magasins de remplacement se substituant à la pile du magasin de stockage, et ainsi de suite.Thus, the magazines aligned in N stacks can be driven in translation by the displacement means so that, when the stack of storage magazines is exhausted, the following N stacks advance by a step corresponding to the distance separating two successive stacks, the first of the replacement magazine batteries replacing the storage magazine battery, and so on.

Les figures du dessin annexé feront bien comprendre comment l'invention peut être réalisée. Sur ces figures, des références identiques désignent des éléments semblables.

  • La figure 1 représente schématiquement le système pour amener des produits en feuille à une machine de traitement desdits produits, selon l'invention.
  • La figure 2 représente une vue de dessus du système selon l'invention montré schématiquement sur la figure 1.
  • La figure 3 est une vue du système selon la flèche F de la figure 1.
  • La figure 4 représente un mode de réalisation détaillée du système selon l'invention suivant la ligne IV-IV de la figure 2.
  • La figure 5 montre une vue du système selon la ligne V-V de la figure 4.
  • Les figures 6 et 7 représentent des vues dudit système selon respectivement les flèches F₁ et F₂ de la figure 4.
The figures of the appended drawing will make it clear how the invention can be implemented. In these figures, identical references designate similar elements.
  • FIG. 1 schematically represents the system for supplying sheet products to a machine for processing said products, according to the invention.
  • FIG. 2 represents a top view of the system according to the invention shown diagrammatically in FIG. 1.
  • FIG. 3 is a view of the system according to the arrow F in FIG. 1.
  • FIG. 4 represents a detailed embodiment of the system according to the invention along the line IV-IV of FIG. 2.
  • FIG. 5 shows a view of the system along the line VV of FIG. 4.
  • FIGS. 6 and 7 show views of said system according to the arrows F₁ and F₂ of FIG. 4 respectively.

Le système selon l'invention est particulièrement destiné à amener des produits en feuille, tels que des flans de carton, à une machine de traitement desdits produits.The system according to the invention is particularly intended for feeding sheet products, such as cardboard blanks, to a machine for processing said products.

En se référant aux figures schématiques 1 à 3, le système 1 comporte des moyens de stockage 2 des produits en feuille, à savoir des flans de carton 3 disposés sous forme de pile 4, et un dispositif 5 pour transférer, un à un, les flans 3 des moyens de stockage 2 à une zone de dépose 6 d'une machine de traitement 7.Referring to schematic figures 1 to 3, the system 1 comprises means 2 for storing sheet products, namely cardboard blanks 3 arranged in the form of a stack 4, and a device 5 for transferring, one by one, the blanks 3 of the storage means 2 at a deposit area 6 of a processing machine 7.

Les moyens de stockage 2 comprennent un premier, 8, et un second, 9, magasins, chaque magasin étant constitué d'une pile 4 de flans de carton 3 reposant sur une palette 10, laquelle est disposée sur des moyens de déplacement comman­dables 11. Derrière chaque magasin de stockage 8 et 9 est prévu au moins un magasin de remplacement, respectivement 12 et 14, de constitution identique à celle des magasins 8 et 9. On voit, notamment en regard de la figure 2, que les magasins de stockage 8 et 9 et les magasins de remplacement 12 et 14, respectivement disposés en amont des magasins 8 et 9, forment deux files parallèles, le dispositif de transfert 5 étant alors situé entre les deux files, à proximité de la zone de dépose 6 de la machine.The storage means 2 comprise a first, 8, and a second, 9, magazines, each magazine consisting of a stack 4 of cardboard blanks 3 resting on a pallet 10, which is arranged on controllable displacement means 11. Behind each storage magazine 8 and 9 is provided at least one replacement magazine, respectively 12 and 14, identical in constitution to that of stores 8 and 9. It can be seen, in particular with regard to FIG. 2, that the storage stores 8 and 9 and the replacement stores 12 and 14, respectively arranged upstream of the stores 8 and 9, form two parallel rows, the transfer device 5 then being located between the two rows, close to the removal zone 6 of the machine.

Les moyens de déplacement commandables 11 de chaque file, représentés plus en détail sur la figure 4, comportent un transporteur 15, par exemple du type à bande, susceptible d'être mis en mouvement, ce qui permet ainsi d'amener les magasins de remplacement 12 et 14 en substitution des magasins de stockage 8 et 9, lorsque les flans de cartons 3 de ces derniers sont épuisés, comme on le verra ultérieure­ment.The controllable displacement means 11 of each row, shown in more detail in FIG. 4, comprise a conveyor 15, for example of the belt type, capable of being set in motion, which thus makes it possible to bring the replacement magazines 12 and 14 to replace the storage magazines 8 and 9, when the cardboard blanks 3 of the latter are exhausted, as will be seen later.

A chaque transporteur 15 peut être avantageusement associé un dispositif, non représenté, pour former des piles de produits reposant sur les palettes des magasins de stockage et de remplacement. Un tel dispositif est, par exemple, décrit dans la demande de brevet française FR-A-88 10830 déposée au nom de la Demanderesse et permet de former des piles de produits rigoureusement verticales tout en étant, de plus, régulièrement espacées le long du transporteur.Each conveyor 15 can advantageously be associated with a device, not shown, for forming stacks of products resting on the pallets of the storage and replacement stores. Such a device is, for example, described in French patent application FR-A-88 10830 filed in the name of the Applicant and makes it possible to form stacks of strictly vertical products while being, moreover, regularly spaced along the conveyor .

Les magasins de stockage 8,9 et de remplacement 12,14 offrent ainsi au système une autonomie importante de fonctionnement, ce qui permet à la machine de traitement 7 destinée, par exemple, à réaliser des emballages à partir desdits flans, de pouvoir fonctionner sans interruption et automatiquement durant une longue période.The storage stores 8, 9 and replacement 12, 14 thus offer the system considerable autonomy in operation, which allows the processing machine 7 intended, for example, to produce packaging from said blanks, to be able to operate without interruption and automatically for a long time.

Le dispositif de transfert 5, schématiquement illustré sur les figures 1 à 3, comporte des premier, 18, et second, 19, moyens de préhension desdits produits en feuille, c'est-à-­dire, dans cette application, les flans 3 de carton.The transfer device 5, schematically illustrated in FIGS. 1 to 3, comprises first, 18, and second, 19, means for gripping said sheet products, that is to say, in this application, the blanks 3 of cardboard.

La structure et le montage desdits moyens de préhension 18,19 seront décrits en regard des figures 4 à 7. Fonctionnellement, les premier et second moyens de préhension sont agencés et commandés de façon que, lorsque l'un des moyens de préhension saisit le flan supérieur du magasin de stockage correspondant, simultanément, l'autre moyen de préhension dépose sur la zone de dépose de la machine le flan supérieur, préalablement saisi de l'autre magasin de stockage puis transféré vers la machine, et réciproquement.The structure and mounting of said gripping means 18,19 will be described with reference to Figures 4 to 7. Functionally, the first and second gripping means are arranged and controlled so that, when one of the gripping means grasps the blank upper of the corresponding storage magazine, simultaneously, the other gripping means deposits on the removal zone of the machine the upper blank, previously gripped from the other storage magazine and then transferred to the machine, and vice versa.

Sur les figures 1 à 3, on voit que le premier moyen de préhension 18 est prêt à saisir le flan supérieur 3 de la pile 4 du magasin 8, tandis que le second moyen de préhension 19 est prêt à déposer sur la zone 6 de la machine le flan 3 préalablement saisi de la pile 4 du magasin 9, puis transféré.In FIGS. 1 to 3, it can be seen that the first gripping means 18 is ready to grip the upper blank 3 of the stack 4 of the magazine 8, while the second gripping means 19 is ready to deposit on the area 6 of the machine the blank 3 previously entered from the stack 4 of the magazine 9, then transferred.

Le dispositif 5 fonctionne ainsi à la façon d'un tourni­quet, chaque moyen de préhension se déplaçant par rotation alternée, entre deux positions distinctes.The device 5 thus operates in the manner of a turnstile, each gripping means moving by alternating rotation, between two distinct positions.

Un exemple de réalisation du système selon l'invention est montré sur les figures 4 à 7.An exemplary embodiment of the system according to the invention is shown in FIGS. 4 to 7.

On voit que le système 1 comporte un châssis 20 rigide constitué principalement de profilés et de traverses assemblés de façon appropriée et reposant sur le sol 21 par l'intermédiaire de plots 22. On remarque également, notamment en regard des figures 4 et 5, les transporteurs 15 formant les deux files espacées et parallèles et sur lesquels sont disposés les magasins de stockage et de remplacement, respectivement 8 et 12, et, 9 et 14. Brièvement, chaque transporteur 15 est, par exemple, constitué de deux profilés 23, parallèles et espacés, et de deux bandes sans fin 24, chacune coopérant avec un profilé, susceptibles d'être entraînées, de façon synchronisée, en rotation par des poulies.It can be seen that the system 1 comprises a rigid frame 20 consisting mainly of profiles and cross members suitably assembled and resting on the ground 21 by means of studs 22. It is also noted, in particular with regard to FIGS. 4 and 5, the conveyors 15 forming the two spaced and parallel rows and on which the storage and replacement magazines are arranged, respectively 8 and 12, and, 9 and 14. Briefly, each conveyor 15 is, for example, made up of two profiles 23, parallel and spaced, and two endless belts 24, each cooperating with a profile, capable of being driven, in a synchronized manner, in rotation by pulleys.

Les bandes de chaque transporteur (représentées en traits mixtes sur la figure 4), sur lesquelles reposent les palettes 10 des magasins de stockage et de remplacement, sont mis en mouvement par l'intermédiaire d'un moteur électrique, respectivement 25 et 26. L'entraînement de chaque moteur 25 et 26, fixé au châssis 20, aux bandes du transporteur correspondant est effectué grâce à un mécanisme 28 à excentrique et courroies 29, bien connu dans ce domaine, qui permet un démarrage lent et progressif du transporteur, puis une vitesse sensiblement constante de celui-ci, pour s'achever par une décélération progressive jusqu'à l'arrêt. Ce mécanisme 28 permet ainsi auxdites piles de produits de rester d'aplomb sur chaque transpor­teur, en évitant leur basculement. Le trajet des courroies 29 du mécanisme 28 est illustré en traits mixtes sur la figure 4.The belts of each conveyor (shown in phantom in Figure 4), on which the pallets 10 of the storage and replacement stores rest, are set in motion by an electric motor, respectively 25 and 26. L drive of each motor 25 and 26, fixed to the chassis 20, to the bands of the corresponding conveyor is carried out by means of a mechanism 28 with eccentric and belts 29, well known in this field, which allows a slow and progressive starting of the conveyor, then a substantially constant speed thereof, to be completed by a gradual deceleration until stopping. This mechanism 28 thus allows said stacks of products to remain plumb on each conveyor, avoiding their tilting. The path of the belts 29 of the mechanism 28 is illustrated in dashed lines in FIG. 4.

Dans ce mode de réalisation, le dispositif de transfert 5 comporte deux bras 30 et 31 fixés à un arbre 32 susceptible d'être entraîné alternativement en rotation par un organe moteur 33 fixé à un des longerons du châssis 20. Le bras 30 porte le premier moyen de préhension 18, tandis qu'au bras 31 est associé le second moyen de préhension 19. Chaque bras 30 et 31 est ainsi susceptible de se déplacer entre deux positions distinctes, dont l'une est située au-dessus du magasin de stockage correspondant et dont l'autre est située au-dessus de la zone de dépose de la machine.In this embodiment, the transfer device 5 comprises two arms 30 and 31 fixed to a shaft 32 capable of being rotated alternately by a motor member 33 fixed to one of the side members of the chassis 20. The arm 30 carries the first gripping means 18, while the arm 31 is associated with the second gripping means 19. Each arm 30 and 31 is thus capable of moving between two distinct positions, one of which is located above the corresponding storage magazine and the other of which is located above the machine removal area.

En regard desdites figures, on voit que le moyen de préhension 18 du bras 30 est au-dessus de la pile 4 du magasin de stockage 8, tandis que le moyen de préhension 19 du bras 31 est au-dessus de la zone de dépose 6 de la machine 7.With reference to said figures, it can be seen that the gripping means 18 of the arm 30 is above the stack 4 of the storage magazine 8, while the gripping means 19 of the arm 31 is above the removal zone 6 of the machine 7.

L'organe moteur 33 est avantageusement un moteur électrique réversible. De la sorte, l'entraînement de l'arbre 32 autour de l'axe de rotation 34 de celui-ci, orthogonal au plan desdits flans, est alternatif, chaque bras se déplaçant entre les deux positions dans un plan parallèle auxdits flans, alors que le déplacement des moyens de préhension s'effectue orthogonalement à ces plans et parallèlement à l'axe de rotation 34 de l'arbre 32.The drive member 33 is advantageously a reversible electric motor. In this way, the drive of the shaft 32 around the axis of rotation 34 thereof, orthogonal to the plane of said blanks, is alternating, each arm moving between the two positions in a plane parallel to said blanks, then that the movement of the gripping means takes place orthogonally to these planes and parallel to the axis of rotation 34 of the shaft 32.

Les bras 30 et 31 sont fixés par une de leurs extrémités au voisinage de l'extrémité supérieure de l'arbre 32 en formant entre eux un angle de 90°. Les deux bras liés à l'arbre 32 fonctionnent alors à la manière d'un tourniquet, chaque bras passant alternativement et réciproquement d'une position à l'autre.The arms 30 and 31 are fixed by one of their ends in the vicinity of the upper end of the shaft 32 by forming an angle of 90 ° between them. The two arms linked to the shaft 32 then operate in the manner of a turnstile, each arm passing alternately and vice versa from one position to the other.

Par ailleurs, la liaison entre le moteur réversible 33 et l'arbre 32 est réalisée, par exemple, au moyen d'une transmission par courroie 36 et d'un mécanisme à coulisseau 37 comprenant deux leviers 38,39 qui coopérent l'un avec l'autre, tel que le montrent les figures 4 et 5, le levier 39 étant lié à l'arbre 32. On comprend ainsi que, lors de l'actionnement du moteur 33, les deux leviers occuperont la position illustrée en traits mixtes sur la figure 5.Furthermore, the connection between the reversible motor 33 and the shaft 32 is produced, for example, by means of a belt transmission 36 and a slide mechanism 37 comprising two levers 38, 39 which cooperate with the other, as shown in FIGS. 4 and 5, the lever 39 being linked to the shaft 32. It is thus understood that, when the motor 33 is actuated, the two levers will occupy the position illustrated in dashed lines on Figure 5.

Dans un exemple préféré de réalisation, les moyens de préhension 18 et 19 sont identiques et chacun d'eux comporte un vérin, respectivement 40 et 41, dont le cylindre, 40A et 41A, est fixé à un support, respectivement 42 et 43, lié au bras correspondant, et dont la tige, 40B et 41B, est munie à son extrémité d'une plaque, respective­ment 44 et 45, portant des ventouses commandables 46 susceptibles d'assurer la prise et le transfert d'un flan du magasin de stockage correspondant à la zone de dépose de la machine.In a preferred embodiment, the gripping means 18 and 19 are identical and each of them comprises a jack, respectively 40 and 41, whose cylinder, 40A and 41A, is fixed to a support, respectively 42 and 43, linked to the corresponding arm, and whose rod, 40B and 41B, is provided at its end with a plate, respectively 44 and 45, carrying controllable suction cups 46 capable of ensuring the taking up and the transfer of a blank from the storage magazine corresponding to the removal area of the machine.

La ligne d'action de chaque vérin 40 et 41 est verticale, orthogonale au plan des flans, chaque vérin pouvant occuper deux positions extrêmes de fonctionnement, haute et basse. De plus, les vérins présentent une section ovale ce qui évite, à l'usage, à la tige de chacun d'eux de tourner par rapport au cylindre et de conserver ainsi une même position appropriée des ventouses par rapport aux flans.The line of action of each jack 40 and 41 is vertical, orthogonal to the plane of the blanks, each jack being able to occupy two extreme operating positions, high and low. In addition, the cylinders have an oval section which prevents, in use, the rod of each of them from rotating relative to the cylinder and thus maintaining the same appropriate position of the suction cups relative to the blanks.

Dans un mode particulièrement avantageux du sytème, chaque moyen de préhension 18,19 est susceptible d'occuper deux positions distinctes le long du bras correspondant 30,31, une première position, éloignée de l'axe de rotation 34 de l'arbre 32, correspondant à une position pour laquelle le moyen de préhension est situé au-dessus de la zone de dépose 6 de la machine, et, une seconde position, proche de l'axe de rotation 34 dudit arbre, correspondant à une position pour laquelle ledit moyen de préhension est situé au magasin de stockage correspondant. Comme on le voit en regard de la figure schématique 2, cet agencement permet de réduire l'écartement entre les deux transporteurs 15 sur lesquels reposent les magasins de stockage et de remplace­ment. Dans la configuration illustrée du dispositif 5, sur cette figure 2 ainsi que sur la figure 6, on voit que la distance d séparant l'axe de rotation 34 de l'axe du vérin 40 en regard du magasin de stockage 8 est réduite, alors que la distance D séparant l'axe de rotation de l'axe du vérin 41 en regard de la zone de dépose 6 est grande. Ainsi, les transporteurs 15 peuvent être mis pratiquement côte à côte, ce qui permet de diminuer l'encombrement de ceux-ci dans l'atelier.In a particularly advantageous mode of the system, each gripping means 18, 19 is capable of occupying two distinct positions along the corresponding arm 30, 31, a first position, distant from the axis of rotation 34 of the shaft 32, corresponding to a position for which the gripping means is located above the removal zone 6 of the machine, and, a second position, close to the axis of rotation 34 of said shaft, corresponding to a position for which said means gripper is located at the corresponding storage store. As seen with reference to schematic figure 2, this arrangement makes it possible to reduce the spacing between the two conveyors 15 on which the storage and replacement magazines rest. In the illustrated configuration of the device 5, in this FIG. 2 as well as in FIG. 6, it can be seen that the distance d separating the axis of rotation 34 from the axis of the jack 40 opposite the storage magazine 8 is reduced, then that the distance D separating the axis of rotation from the axis of the jack 41 opposite the removal zone 6 is great. Thus, the conveyors 15 can be placed practically side by side, which makes it possible to reduce the size of these in the workshop.

Dans l'exemple de réalisation notamment illustré sur les figures 4 et 6, chaque support 42 et 43 associant le vérin correspondant 40,41 aux bras correspondant 30,31 est susceptible de coulisser, lors de la rotation de l'arbre 34, le long de son bras entre les deux positions, proche et éloignée de l'axe de rotation 34 de l'arbre 32, grâce à une bielle, respectivement 50 et 51, dont une extrémité est fixée au châssis 20 et dont l'autre extrémité est reliée au vérin correspondant. Dans la réalisation illustrée sur les figures 4 et 6, chaque bras 30 et 31 est constitué avantageusement de deux tiges respectivement 30A,30B, et, 31A,31B, parallèles et espacées, et en étant disposées dans un plan vertical, orthogonal aux flans 3. Chacun des supports 42 et 43 est monté sur son bras correspondant par quatre paliers de roulement 48, deux paliers 48 coopérant avec chaque tige.In the embodiment particularly illustrated in FIGS. 4 and 6, each support 42 and 43 associating the corresponding jack 40,41 with the corresponding arms 30,31 is capable of sliding, during the rotation of the shaft 34, along of his arm between the two positions, close and remote from the axis of rotation 34 of the shaft 32, by means of a connecting rod, respectively 50 and 51, one end of which is fixed to the frame 20 and the other end of which is connected to the corresponding jack. In the embodiment illustrated in FIGS. 4 and 6, each arm 30 and 31 advantageously consists of two rods 30A, 30B, and, respectively, 31A, 31B, parallel and spaced apart, and being arranged in a vertical plane, orthogonal to the blanks 3 Each of the supports 42 and 43 is mounted on its corresponding arm by four rolling bearings 48, two bearings 48 cooperating with each rod.

La bielle 50 est fixée à l'une de ses extrémités en 52 à l'un des profilés du châssis 20, tandis que l'autre extrémité est articulée en 53 à l'extrémité supérieure du vérin 40. Par analogie, la bielle 51 est fixée à l'une de ses extrémités en 54 à un profilé, opposé au précédent, du châssis 20, tandis que l'autre extrémité est articulée en 55 à l'extrémité supérieure du vérin 41. Pour des raisons de fonctionnement, la bielle 51 est coudée, tandis que la bielle 50 est rectiligne, le déplacement des deux bielles par rapport aux points d'articulation du châssis s'effec­tuant dans des plans superposés, parallèles aux flans 3 et orthogonaux à l'axe de rotation 34 de l'arbre 32.The connecting rod 50 is fixed at one of its ends at 52 to one of the sections of the chassis 20, while the other end is articulated at 53 at the upper end of the jack 40. By analogy, the connecting rod 51 is fixed at one of its ends at 54 to a profile, opposite the previous one, of the chassis 20, while the other end is articulated at 55 at the upper end of the jack 41. For operating reasons, the connecting rod 51 is bent, while the connecting rod 50 is rectilinear, the displacement of the two connecting rods relative to the articulation points of the chassis taking place in superimposed planes, parallel to the blanks 3 and orthogonal to the axis of rotation 34 of the shaft 32.

Par ailleurs, il est prévu des moyens de détection et de mise à niveau 59 des flans de carton contenus dans chaque magasin de stockage. Ces moyens 59 comportent, pour chaque magasin, une cellule photo-électrique, respectivement 60 et 61, fixée au châssis 20 à un niveau de référence pré-­établi, comme le montre la figure 7, et un organe de commande, respectivement 62 et 63, permettant la montée du magasin de stockage correspondant à chaque fois que le flan supérieur 3 de la pile a été saisi puis transféré par le moyen de préhension correspondant. Le retrait de la feuille supérieure d'une des piles provoque la transmission d'un faisceau lumineux de la cellule vers un réflecteur 60a ou 61a lequel renvoie le faisceau vers la cellule, ce qui provoque l'actionnement de l'organe de commande correspon­dant et la montée du magasin jusqu'à ce que la nouvelle feuille supérieure de la pile interrompe la transmission du faisceau lumineux stoppant alors ledit organe de commande. Par souci de clarté, le faisceau lumineux de chaque cellule a été représenté en traits pointillés au-dessus du flan supérieur de la pile correspondante.Furthermore, means are provided for detecting and leveling 59 the cardboard blanks contained in each storage magazine. These means 59 comprise, for each store, a photoelectric cell, respectively 60 and 61, fixed to the chassis 20 at a pre-established reference level, as shown in FIG. 7, and a control member, respectively 62 and 63 , allowing the rise of the corresponding storage magazine each time the upper blank 3 of the stack has been gripped and then transferred by the corresponding gripping means. Removing the top sheet from one of the batteries causes transmission of a light beam from the cell to a reflector 60a or 61a which returns the beam to the cell, which causes the actuation of the corresponding control member and the rise of the magazine until the new top sheet of the stack interrupts the transmission of the light beam then stopping said control member. For the sake of clarity, the light beam of each cell has been shown in dotted lines above the upper blank of the corresponding stack.

Comme on le voit davantage sur les figures 4 et 7, l'organe de commande, respectivement 62 et 63, de chaque magasin de stockage comprend, par exemple, un moteur électrique 64 fixé à la partie supérieure du châssis 20, ledit moteur étant susceptible d'entraîner la montée et/ou la descente du magasin de stockage, auquel il est associé, par l'inter­médiaire d'une courroie 65 et d'un support mobile 66 lié à chaque magasin et susceptible de coulisser, lors de la mise en mouvement de la courroie 65, le long de deux rails 69 ménagés sur des profilés verticaux 67 du châssis 20, le support 66 coulissant sur les rails par l'intermédiaire de galets 68.As can be seen more in FIGS. 4 and 7, the control member, respectively 62 and 63, of each storage magazine comprises, for example, an electric motor 64 fixed to the upper part of the chassis 20, said motor being capable of cause the storage magazine to rise and / or descend, with which it is associated, by means of a belt 65 and a movable support 66 linked to each store and capable of sliding, when the movement of the belt 65, along two rails 69 formed on vertical profiles 67 of the chassis 20, the support 66 sliding on the rails by means of rollers 68.

Le fonctionnement du système selon l'invention se déroule de la façon suivante : auparavant, les magasins de stockage 8 et 9 et de remplacement 12 et 14 ont été disposés sur les transporteurs respectifs 15, par exemple, au moyen du dispositif décrit dans la demande de brevet français n° 88 10830 déposée au nom de la Demanderesse.The operation of the system according to the invention takes place in the following way: previously, the storage stores 8 and 9 and of replacement 12 and 14 were arranged on the respective carriers 15, for example, by means of the device described in the application French patent n ° 88 10830 filed in the name of the Applicant.

En se référant aux figures 4 à 7 comme point de départ du fonctionnement, on voit que les vérins 40 et 41 du dispositif de transfert 5 sont en position haute, le vérin 41 ayant préalablement saisi par les ventouses 46 l'équi­pant un flan 3 du magasin de stockage 9. Le vérin 41 se trouve par conséquent, à ce moment, dans la position éloignée par rapport à l'axe de rotation 34 de l'arbre 32, au-dessus de la zone 6 de la machine, tandis que le vérin 40 se trouve dans la position proche de l'axe 34, au-dessus du magasin de stockage 8. La tige 41B vérin 41 descend vers la zone de dépose 6 jusqu'à ce qu'elle arrive en position basse proche de ladite zone. Les ventouses 46 maintenant le flan 3 sont alors commandées et libèrent le flan 3 qui se dépose sur la zone 6 de la machine 7. Simultanément à cette phase de fonctionnement, la tige 40B du vérin 40 descend vers la pile 4 du magasin 8 jusqu'à ce que les ventouses 46 l'équipant viennent au contact du flan 3 du magasin 8. Dès que les ventouses 46 se posent sur le flan 3 pour le saisir, le vérin 40 s'arrête.Referring to Figures 4 to 7 as a starting point for operation, we see that the cylinders 40 and 41 of the transfer device 5 are in the high position, the cylinder 41 having previously gripped by the suction cups 46 equipping a blank 3 of the storage magazine 9. The jack 41 is therefore, at this time, in the position remote from the axis of rotation 34 of the shaft 32, above the zone 6 of the machine, while the jack 40 is in the position close to the axis 34, above the storage magazine 8. The rod 41B jack 41 descends towards the deposit area 6 until 'so that it arrives in the low position close to said zone. The suction cups 46 holding the blank 3 are then controlled and release the blank 3 which is deposited on the zone 6 of the machine 7. Simultaneously with this operating phase, the rod 40B of the jack 40 descends towards the stack 4 of the magazine 8 until that the suction cups 46 equipping it come into contact with the blank 3 of the magazine 8. As soon as the suction cups 46 land on the blank 3 to grip it, the jack 40 stops.

Puis, les vérins sont ensuite remontés vers leur position haute, le vérin 40 étant muni d'un flan 3 grâce aux ventouses.Then, the jacks are then raised to their high position, the jack 40 being provided with a blank 3 thanks to the suction cups.

Dès que les vérins atteignent la position haute, ils déclenchent des contacts qui entraînent la mise en rotation du moteur réversible 33. A ce moment, l'arbre 32, par l'intermédiaire de la courroie 36 et du mécanisme 37, est entraîné en rotation de 90° autour de son axe 34 par le moteur 33. La rotation de l'arbre 32 entraîne à son tour la rotation du bras 30, portant le vérin 40, du magasin de stockage 8 vers la zone de dépose 6, tandis que le bras 31, portant le vérin 41, est entraîné de la zone de dépose 6 vers le magasin de stockage 9. De façon concomittante, le vérin 40 passe d'une position proche de l'axe de rotation 34 de l'arbre 32 à une position éloignée de l'axe 34, au-dessus de la zone de dépose, grâce à la bielle 50 et au support coulissant 42 auquel est fixé le vérin 40. Quant au vérin 41, il est rappelé dans la position proche de l'axe 34 par la bielle 51 et son support coulissant 43. Les trajectoires des vérins 40 et 41 entre leurs deux positions distinctes sont indiquées en traits mixtes sur la figure 6.As soon as the jacks reach the high position, they trigger contacts which cause the reversible motor 33 to rotate. At this moment, the shaft 32, by means of the belt 36 and the mechanism 37, is driven in rotation 90 ° around its axis 34 by the motor 33. The rotation of the shaft 32 in turn causes the rotation of the arm 30, carrying the actuator 40, from the storage magazine 8 to the removal zone 6, while the arm 31, carrying the jack 41, is driven from the deposit zone 6 towards the storage magazine 9. Concomitantly, the jack 40 passes from a position close to the axis of rotation 34 of the shaft 32 to a position distant from the axis 34, above the removal zone, thanks to the connecting rod 50 and to the sliding support 42 to which the jack 40 is fixed. As for the jack 41, it is returned to the position close to the axis 34 by the connecting rod 51 and its sliding support 43. The trajectories of the jacks 40 and 41 between their two posi Separate items are shown in phantom in Figure 6.

Par ailleurs, dès que le flan supérieur 3 du magasin de stockage 8 a été saisi puis transféré par les ventouses 46 du vérin 40, la cellule photo-électrique 60 transmet un faisceau lumineux vers son réflecteur 60a qui lui renvoie le faisceau. Cela provoque le démarrage du moteur électrique 64 lequel, par l'intermédiaire de la courroie 65 et du support mobile 66, entraîne la montée du magasin 8 jusqu'à ce que le nouveau flan supérieur 3 occulte le faisceau émis et reçu par la cellule. Dès l'occultation du faisceau, le moteur 64 s'arrête, la pile étant ainsi toujours à niveau constant.Furthermore, as soon as the upper blank 3 of the storage magazine 8 has been gripped and then transferred by the suction cups 46 of the jack 40, the photoelectric cell 60 transmits a light beam towards its reflector 60a which returns the beam to it. This causes the electric motor 64 to start, which, via the belt 65 and the movable support 66, causes the magazine 8 to rise until the new upper blank 3 obscures the beam emitted and received by the cell. As soon as the beam is obscured, the motor 64 stops, the battery thus always being at a constant level.

Le vérin 40 porteur d'un flan 3 étant alors au-dessus de la zone de dépose 6, la tige de celui-ci descend jusqu'à atteindre sa position basse à proximité de ladite zone, puis, dépose sur celle-ci le flan 3 libéré par les ventouses 46. Simultanément, le vérin 41, au-dessus de la pile 4 de flans du magasin de stockage 9, saisit par l'intermédiaire des ventouses équipant sa tige 41B le flan supérieur du magasin 9. Un nouveau cycle est prêt à démarrer.The jack 40 carrying a blank 3 then being above the depositing zone 6, the rod of the latter descends until it reaches its low position near said zone, then deposits the blank thereon 3 released by the suction cups 46. Simultaneously, the jack 41, above the stack 4 of blanks of the storage magazine 9, grasps via the suction cups equipping its rod 41B the upper blank of the magazine 9. A new cycle is ready to go.

Lorsque les flans 3, par exemple, du magasin 9 sont épuisés, un contact point mort haut du moteur électrique correspondant 64 est actionné, de sorte que cela entraîne la descente du magasin 9 sur le transporteur 15 correspon­dant. Le moteur 64 est alors arrêté ce qui commande l'avancée des N magasins de remplacement, en l'occurrence le magasin de remplacement 14, par l'intermédiaire des bandes de roulement 24 du transporteur mises en mouvement par le moteur 26 et le mécanisme 28. La palette 10 du magasin 9 est alors éjectée hors du transporteur, tandis que le magasin de remplacement 14 est amené en substitution au précédent, exactement dans la même position que celle précédemment occupée par le magasin 9. Durant le changement de magasins d'une file, le dispositif 5 peut continuer à fonctionner grâce aux flans contenus dans l'autre magasin de stockage.When the blanks 3, for example, of the magazine 9 are exhausted, a top dead center contact of the corresponding electric motor 64 is actuated, so that this causes the magazine 9 to descend on the corresponding conveyor 15. The motor 64 is then stopped, which controls the advance of the N replacement magazines, in this case the replacement magazine 14, by means of the treads 24 of the conveyor set in motion by the motor 26 and the mechanism 28 The pallet 10 of the magazine 9 is then ejected from the conveyor, while the replacement magazine 14 is brought in to replace the previous one, exactly in the same position as that previously occupied by the magazine 9. During the change of magazines from one file, the device 5 can continue to operate thanks to the blanks contained in the other storage magazine.

Claims (13)

1 - Système pour amener des produits en feuille à une zone de dépose d'une machine de traitement desdits produits en feuille, ledit système comportant des moyens de stockage (2) desdits produits en feuille (3) et un dispositif (5) pour transférer, un à un, lesdits produits des moyens de stockage (2) à ladite machine (7),
caractérisé en ce que lesdits moyens de stockage (2) comprennent au moins des premier (8) et second (9) magasins, et, en ce que ledit dispositif de transfert (5) comporte au moins des premier (18) et second (19) moyens de préhension desdits produits, agencés et commandés de façon que, lorsque l'un des moyens de préhension saisit le produit en feuille supérieure du magasin de stockage correspondant, simultanément, l'autre moyen de préhension dépose sur ladite zone de dépose (6) de la machine le produit en feuille supérieur, préalablement saisi de l'autre magasin de stockage puis transféré vers ladite machine, et réciproquement.1 - System for bringing sheet products to a deposit area of a machine for processing said sheet products, said system comprising storage means (2) of said sheet products (3) and a device (5) for transferring , one by one, said products from the storage means (2) to said machine (7),
characterized in that said storage means (2) comprise at least first (8) and second (9) magazines, and, in that said transfer device (5) comprises at least first (18) and second (19 ) means for gripping said products, arranged and controlled so that, when one of the gripping means grasps the product in the upper sheet of the corresponding storage magazine, simultaneously, the other gripping means deposits on said deposit zone (6 ) from the machine, the top sheet product, previously seized from the other storage store and then transferred to said machine, and vice versa. 2 - Système selon la revendication 1,
caractérisé en ce que ledit dispositif de transfert (5) comporte deux bras (30,31) fixés à un arbre (32) suscepti­ble d'être entraîné alternativement en rotation par un organe moteur (33), chacun desdits bras (30 et 31) portant l'un desdits moyens de préhension (18 et 19) et étant susceptible de se déplacer entre deux positions distinctes, dont l'une est située au-dessus du magasin de stockage correspondant (8,9) et dont l'autre est située au-dessus de la zone de dépose (6) de la machine.2 - System according to claim 1,
characterized in that said transfer device (5) comprises two arms (30,31) fixed to a shaft (32) capable of being driven alternately in rotation by a motor member (33), each of said arms (30 and 31) carrying one of said gripping means (18 and 19) and being capable of moving between two distinct positions, one of which is located above the corresponding storage magazine (8,9) and the other of which is located above the removal zone (6) of the machine. 3 - Système selon la revendication 2,
caractérisé en ce que le déplacement desdits bras (30,31) s'effectue dans un plan parallèle au plan desdits produits en feuille, le déplacement desdits moyens de préhension (18,19) s'effectuant orthogonalement à ces plans et parallèlement à l'arbre (32) entraîné alternativement en rotation.3 - System according to claim 2,
characterized in that the movement of said arms (30,31) takes place in a plane parallel to the plane of said sheet products, the movement of said gripping means (18,19) taking place orthogonally to these planes and parallel to the shaft (32) driven alternately in rotation. 4 - Système selon l'une des revendications 2 ou 3,
caractérisé en ce que lesdits bras (30 et 31), fixés par un de leurs extrémités audit arbre, forment entre eux un angle de 90°, ledit organe moteur (33), qui entraîne en rotation par l'intermédiaire de l'arbre lesdits bras, étant un moteur électrique réversible.4 - System according to one of claims 2 or 3,
characterized in that said arms (30 and 31), fixed by one of their ends to said shaft, form an angle of 90 ° between them, said motor member (33), which rotates said shaft through said shaft arm, being a reversible electric motor. 5 - Système selon l'une des revendications 2 à 4,
caractérisé en ce que chacun desdits moyens de préhension comprend un vérin (40,41) dont le cylindre (40A,41A) est lié au bras correspondant du dispositif de transfert (5) et dont la tige (40B, 41B) est munie à son extrémité de ventouses commandables (46) susceptibles d'assurer la prise et le transfert d'un produit en feuille (3) du magasin de stockage correspondant à la zone de dépose (6) de ladite machine.5 - System according to one of claims 2 to 4,
characterized in that each of said gripping means comprises a jack (40,41) whose cylinder (40A, 41A) is linked to the corresponding arm of the transfer device (5) and whose rod (40B, 41B) is provided at its end of controllable suction cups (46) capable of picking up and transferring a sheet product (3) from the storage magazine corresponding to the deposit area (6) of said machine. 6 - Système selon l'une des revendications 2 à 5,
caractérisé en ce que chaque moyen de préhension (18,19) est susceptible d'occuper deux positions distinctes le long dudit bras correspondant (30,31), une première position, éloignée de l'axe de rotation (34) de l'arbre (32), correspondant à une position pour laquelle ledit moyen de préhension est situé au-dessus de la zone de dépose (6) de la machine, et, une seconde position, proche de l'axe de rotation (34) dudit arbre, correspondant à une position pour laquelle ledit moyen de préhension est situé au-dessus du magasin de stockage correspondant (8,9).6 - System according to one of claims 2 to 5,
characterized in that each gripping means (18,19) is capable of occupying two distinct positions along said corresponding arm (30,31), a first position, distant from the axis of rotation (34) of the shaft (32), corresponding to a position for which said gripping means is located above the removal zone (6) of the machine, and, a second position, close to the axis of rotation (34) of said shaft, corresponding to a position for which said gripping means is located above the corresponding storage magazine (8, 9). 7 - Système selon la revendication 6,
caractérisé en ce que chaque moyen de préhension (18 et 19) est monté sur le bras correspondant (30 et 31) par l'intermédiaire d'un support (42,43) susceptible de coulisser, lors de la rotation dudit arbre, le long du bras entre les deuxdites positions, proche et éloignée de l'axe de rotation dudit arbre, grâce à une bielle (50 et 51) dont une extrémité est fixée au châssis (20) dudit système et dont l'autre extrémité est reliée au moyen de préhension correspondant.7 - System according to claim 6,
characterized in that each gripping means (18 and 19) is mounted on the corresponding arm (30 and 31) by means of a support (42,43) capable of slide, during the rotation of said shaft, along the arm between the two said positions, close to and away from the axis of rotation of said shaft, by means of a connecting rod (50 and 51), one end of which is fixed to the frame (20) of said shaft system and the other end of which is connected to the corresponding gripping means. 8 - Système selon la revendication 7,
caractérisé en ce que les deux bielles (50,51) de liaison du châssis (20) aux moyens de préhension (18,19) se déplacent dans deux plans superposés, parallèles au plan formé par lesdits bras.8 - System according to claim 7,
characterized in that the two connecting rods (50,51) connecting the chassis (20) to the gripping means (18,19) move in two superposed planes, parallel to the plane formed by said arms. 9 - Système selon l'une quelconque des revendications précédentes 1 à 8,
caractérisé en ce qu'il comporte des moyens de détection et de mise à niveau (59) des produits en feuille (3) de chaque magasin (8,9).9 - System according to any one of the preceding claims 1 to 8,
characterized in that it comprises means for detecting and leveling (59) the sheet products (3) from each store (8, 9). 10 - Système selon la revendication 9,
caractérisé en ce que lesdits moyens de mise à niveau (59) de chaque magasin comportent au moins une cellule photo-électrique (60 et 61) fixée au châssis (20) dudit système et un organe de commande (62 et 63) permettant la montée dudit magasin, de façon que, lorsque le produit en feuille supérieur dudit magasin est saisi puis transféré, un faisceau lumineux est transmis par ladite cellule, ce qui provoque l'actionnement dudit organe de commande et la montée dudit magasin, jusqu'à ce que la nouvelle feuille supérieure de la pile interrompe la transmission du faisceau lumineux, stoppant alors ledit organe de commande.10 - System according to claim 9,
characterized in that said leveling means (59) of each store comprise at least one photocell (60 and 61) fixed to the frame (20) of said system and a control member (62 and 63) allowing the rise of said magazine, so that, when the top sheet product of said magazine is seized and then transferred, a light beam is transmitted by said cell, which causes the actuation of said control member and the rise of said magazine, until the new top sheet of the stack interrupts the transmission of the light beam, then stopping said control member. 11 - Système selon l'une quelconque des revendications 1 à 10 précédentes,
caractérisé en ce que des magasins de remplacement (12 et 14) contenant chacun une pile (4) de produits en feuille (3) sont prévus en amont desdits premier (8) et second (9) magasins de stockage, lesdits magasins de stockage et de remplacement reposant sur des moyens de déplacement commandables (11) permettant d'amener lesdits magasins de remplacement en substitution desdits magasins de stockage, lorsque les produits en feuille de ces derniers sont épuisés.11 - System according to any one of the preceding claims 1 to 10,
characterized in that replacement magazines (12 and 14) each containing a stack (4) of sheet products (3) are provided upstream of said first (8) and second (9) storage stores, said storage and replacement stores based on controllable displacement means (11) making it possible to bring said replacement stores in substitution for said storage stores, when the sheet products of the latter are used up. 12 - Système selon la revendication 11,
caractérisé en ce que lesdits premier (8) et second (9) magasins de stockage ainsi que lesdits magasins de remplacement (12 et 14), respectivement disposés en amont des magasins de stockage, sont alignés en formant deux files parallèles, le dispositif de transfert (5) étant prévu entre les deux files à proximité de la zone de dépose (6) de ladite machine.12 - System according to claim 11,
characterized in that said first (8) and second (9) storage magazines as well as said replacement magazines (12 and 14), respectively arranged upstream of the storage magazines, are aligned forming two parallel rows, the transfer device (5) being provided between the two queues near the removal zone (6) of said machine. 13 - Système selon la revendication 12,
caractérisé en ce que chaque file de magasins est disposée sur des moyens de déplacement commandables (11) comportant un transporteur (15) à bande (24) entraîné par un moteur (25,26), et en ce que les magasins de stockage et de remplacement sont disposés sur le transporteur de façon régulièrement espacée.13 - System according to claim 12,
characterized in that each row of magazines is arranged on controllable displacement means (11) comprising a conveyor (15) with belt (24) driven by a motor (25,26), and in that the magazines for storage and replacement are arranged on the carrier in a regularly spaced manner.
EP89402162A 1988-08-16 1989-07-28 System for conveying sheet products to a machine for treating same Expired - Lifetime EP0356283B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89402162T ATE76383T1 (en) 1988-08-16 1989-07-28 SYSTEM FOR LOADING SHEET PRODUCTS INTO A MACHINE FOR THE TREATMENT OF THESE PRODUCTS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8810916 1988-08-16
FR8810916A FR2635510B1 (en) 1988-08-16 1988-08-16 SYSTEM FOR FEEDING SHEET PRODUCTS TO A PRODUCT PROCESSING MACHINE

Publications (2)

Publication Number Publication Date
EP0356283A1 true EP0356283A1 (en) 1990-02-28
EP0356283B1 EP0356283B1 (en) 1992-05-20

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ID=9369338

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89402162A Expired - Lifetime EP0356283B1 (en) 1988-08-16 1989-07-28 System for conveying sheet products to a machine for treating same

Country Status (6)

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EP (1) EP0356283B1 (en)
AT (1) ATE76383T1 (en)
DE (1) DE68901596D1 (en)
ES (1) ES2032668T3 (en)
FR (1) FR2635510B1 (en)
GR (1) GR3004679T3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2709571A1 (en) * 1993-06-01 1995-03-10 Gerber Systems Corp System and method for manipulating curved and cassette shaped recording media usable for this purpose.

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2368983B1 (en) * 2010-02-15 2012-08-08 Trabajos Catastrales, S.A. AUTOMATIC FEEDER FOR SCANNER.

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2950913A (en) * 1958-12-04 1960-08-30 Harris Intertype Corp Sheet feeding apparatus
DE3132393A1 (en) * 1981-03-26 1982-10-14 Ezio Milano Curti Apparatus for placing and removing protective sheets onto and from a stack of boards, comprising mounting boards, for electronic circuits and also for bringing in and taking away these mounting boards

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2950913A (en) * 1958-12-04 1960-08-30 Harris Intertype Corp Sheet feeding apparatus
DE3132393A1 (en) * 1981-03-26 1982-10-14 Ezio Milano Curti Apparatus for placing and removing protective sheets onto and from a stack of boards, comprising mounting boards, for electronic circuits and also for bringing in and taking away these mounting boards

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2709571A1 (en) * 1993-06-01 1995-03-10 Gerber Systems Corp System and method for manipulating curved and cassette shaped recording media usable for this purpose.

Also Published As

Publication number Publication date
FR2635510B1 (en) 1990-11-09
DE68901596D1 (en) 1992-06-25
GR3004679T3 (en) 1993-04-28
EP0356283B1 (en) 1992-05-20
ATE76383T1 (en) 1992-06-15
FR2635510A1 (en) 1990-02-23
ES2032668T3 (en) 1993-02-16

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