EP0035428A1 - Device for feeding sheets to a processing machine - Google Patents

Device for feeding sheets to a processing machine Download PDF

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Publication number
EP0035428A1
EP0035428A1 EP19810400247 EP81400247A EP0035428A1 EP 0035428 A1 EP0035428 A1 EP 0035428A1 EP 19810400247 EP19810400247 EP 19810400247 EP 81400247 A EP81400247 A EP 81400247A EP 0035428 A1 EP0035428 A1 EP 0035428A1
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EP
European Patent Office
Prior art keywords
pusher
sheet
box
stop
boxes
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
EP19810400247
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German (de)
French (fr)
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EP0035428B1 (en
Inventor
Bernard Capdebosq
Bernard Saunier
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Martin SA
Original Assignee
Martin SA
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Publication date
Application filed by Martin SA filed Critical Martin SA
Publication of EP0035428A1 publication Critical patent/EP0035428A1/en
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Publication of EP0035428B1 publication Critical patent/EP0035428B1/en
Expired legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H3/00—Separating articles from piles
    • B65H3/24—Separating articles from piles by pushers engaging the edges of the articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H3/00—Separating articles from piles
    • B65H3/08—Separating articles from piles using pneumatic force
    • B65H3/12—Suction bands, belts, or tables moving relatively to the pile
    • B65H3/122—Suction tables
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/42—Piling, depiling, handling piles
    • B65H2301/423—Depiling; Separating articles from a pile
    • B65H2301/4232—Depiling; Separating articles from a pile of horizontal or inclined articles, i.e. wherein articles support fully or in part the mass of other articles in the piles
    • B65H2301/42322—Depiling; Separating articles from a pile of horizontal or inclined articles, i.e. wherein articles support fully or in part the mass of other articles in the piles from bottom of the pile

Definitions

  • the present invention relates to a device for feeding sheets to a processing machine, such as a feeder intended to equip a machine for shaping corrugated boxes.
  • suction feeders such as that described in US Patent No. 3,226,108, in which the margin sheet is made integral with a box on which a vacuum is applied cyclically , said box being moreover driven in a longitudinal reciprocating movement in conjunction with a drive of the sheet by rollers placed directly downstream of this box.
  • These devices allow the sheets to pass under the margin knives located downstream of the feeder without the risk of jamming.
  • it happens with such devices in particular when treating thin sheets, therefore light, that these are put across, or "delta", the lateral edges remaining behind the upstream front of the sheet, which provides poor introduction.
  • delta the lateral edges remaining behind the upstream front of the sheet
  • the feeder according to the invention allows, while not having the drawbacks of the previous devices, to have margin security under the knives inherent in suction feeders of the prior art while having perfect security in the register, regardless of the thickness of the carton.
  • It includes a flat and substantially horizontal margin table, a front stop or "margin knife” allowing one sheet to pass at a time, a rear pusher animated with a longitudinal back and forth movement and constituted by a margin ruler or a set of aligned claws, having in all cases a front heel-shaped machining to receive the rear edge of the sheet to be pushed, a rear stop intended to support the rear of the sheet packet and placed at above said pusher, and is characterized in that it further comprises one or more suction boxes located (s) at the front and under said margin table and animated (s) with a longitudinal reciprocating movement by means of a transmission linked to that moving said pusher so that their strokes are substantially in concordance during at least a first part of the forward stroke of said pusher corresponding to at least the distance longed
  • the box 12 and the rule 8 are kinematically linked to each other so that their. the respective longitudinal reciprocating strokes are conjugated according to the graph in FIG. 2 where the stroke angle 9 is plotted on the abscissa, the stroke distance c on the ordinate, the curve relative to the box 12 being drawn in strong lines and that relating to rule 8 in thin lines.
  • the solenoid valve 13 is controlled, for example by a conventional control with photoelectric cells sensitive to the longitudinal position of the box 12, so that the vacuum is applied to the box 12, during the first part C of the race corresponding to its advance, then be released afterwards.
  • the pushing heel 9 can have a height greater than the thickness of a sheet, so that it is thus possible to have the maximum pushing efficiency even with thin sheets, especially without damaging the rear edge. Furthermore, in the case of a lower sheet 23 which would be tiled or curved, therefore unable to pass under the knife 3 which, with the prior devices would cause a cardboard jam, the box 12 would then only suck air so the back of the tiled sheet 23 would remain on the advance 11 and the introduction would be stopped without loss of material.
  • the device of the invention makes it possible to recover this defect, because the sheet will be readjusted in the next cycle on the heel of the rule, thus regaining its good margin position.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Making Paper Articles (AREA)

Abstract

1. Device for feeding a processing machine with sheets, of the type comprising a flat and substantially horizontal feed board (4), a front stop (3), or "feed knife", making it possible to allow one sheet to pass through at a time, a rear push-rod (8) driven with a longitudinal reciprocating motion, and a rear stop (10) intended for supporting the rear of the stack of sheets (2) and placed above the said push-rod, characterized in that it also comprises one or more suction boxes (12) located in front and under the said feed table (4) and driven with a longitudinal reciprocating motion by means of a transmission (19, 20) linked to the transmission (21, 22), which moves the said push-rod (8), so that their strokes substantially match during at least a first part (c) of the forward stroke of the said push-rod, corresponding at least to the longitudinal distance (L) of support of the stack (2) by the said rear stop (11, 10), the said box or boxes (12) being connected to a device (13, 14) creating a partial vacuum therein during the said matching (c) of forward strokes, and then releasing the said partial vacuum.

Description

La présente invention se rapporte à un dispositif d'alimentation en feuilles d'une machine de traitement, tel qu'un margeur destiné à équiper une machine de façonnage de caisses en carton ondulé.The present invention relates to a device for feeding sheets to a processing machine, such as a feeder intended to equip a machine for shaping corrugated boxes.

On connaît des dispositifs de ce genre, tel que par exemple celui décrit dans le brevet françaïs N° 1.568.091, qui ne comportent pas de table de marge. Les feuilles de carton sont alors extraites une par une du magasin par le fond de celui-ci, sur lequel elles reposent à l'aide de deux supports, un avant et un arrière, de faibles dimensions longitudinales. L'extraction de chaque feuille s'effectue à l'aide d'un caisson arrière aspirant ayant un mouvement cyclique dans le plan vertical lui donnant successivement un mouvement ascendant associé à un mouvement de recul puis un mouvement descendant associé à un mouvement d'avancée. Les feuilles ainsi extraites du magasin sont ensuite entraînées vers l'avant à l'aide d'un poussoir. De tels dispositifs sont complexes, de mise en oeuvre difficile, peu adaptés aux changements rapides de format, et peu aptes, faute de table de marge, à fonctionner avec de grands formats en raison du fléchissement des plaques. On leur préfère généralement les dispositifs plus simples et plus souples d'utilisation comportant une table de marge constituant le fond du magasin et pourvue de couteaux de marge situés à hauteur du front avant du paquet de feuilles.Devices of this type are known, such as for example that described in the French patent N ° 1,568,091, which do not include a margin table. The cardboard sheets are then extracted one by one from the store by the bottom thereof, on which they rest using two supports, one front and one rear, of small longitudinal dimensions. The extraction of each sheet is carried out using a rear suction box having a cyclic movement in the vertical plane giving it successively an upward movement associated with a backward movement then a downward movement associated with a forward movement . The sheets thus extracted from the magazine are then driven forward using a pusher. Such devices are complex, difficult to implement, ill-suited to rapid format changes, and ill-suited, for lack of a margin table, to operate with large formats due to the flexing of the plates. They are generally preferred for simpler and more flexible devices of use comprising a margin table constituting the bottom of the magazine and provided with margin knives situated at the height of the front edge of the pack of sheets.

On connaît également des margeurs à aspiration, tel que celui décrit dans le brevet des Etats-Unis d'Amérique N° 3.226.108, dans lesquels la feuille à marger est rendue solidaire d'un caisson sur lequel on applique une dépression de manière cyclique, ledit caisson étant par ailleurs animé d'un mouvement de va-et-vient longitudinal en conjugaison avec un entraînement de la feuille par des rouleaux placés directement en aval de ce caisson. Ces dispositifs permettent un passage des feuilles sous les couteaux de marge situés en aval du margeur sans risque de bourrage. Par contre, il arrive avec de tels dispositifs, en particulier lorsqu'on traite des feuilles minces, donc légères, que celles-ci se mettent en travers, ou "en delta", les bords latéraux restant en arrière du front amont de la feuille, ce qui procure une mauvaise introduction . Inversement, dans le cas du traitement de feuilles épaisses donc plutôt lourdes, celles-ci ont de la difficulté à être entraînées exactement au registre, ce qui perturbe le fonctionnement de la machine.There are also known suction feeders, such as that described in US Patent No. 3,226,108, in which the margin sheet is made integral with a box on which a vacuum is applied cyclically , said box being moreover driven in a longitudinal reciprocating movement in conjunction with a drive of the sheet by rollers placed directly downstream of this box. These devices allow the sheets to pass under the margin knives located downstream of the feeder without the risk of jamming. However, it happens with such devices, in particular when treating thin sheets, therefore light, that these are put across, or "delta", the lateral edges remaining behind the upstream front of the sheet, which provides poor introduction. Conversely, in the case of the treatment of thick, therefore rather heavy, sheets, these have difficulty in being driven exactly to the register, which disturbs the operation of the machine.

On connaît enfin des dispositifs, tel que celui décrit dans le brevet français de la demanderesse publié sous le numéro 2.239.881, dans lesquels la feuille à marger est poussée par une règle à griffes animée d'un mouvement longitudinal de va-et-vient, la feuille étant par ailleurs soumise à-une dépression faible qui la plaque et la redresse sur une structure plane appelée table de marge. Ce type de dispositif procure une meilleure poussée de la feuille que les dispositifs mentionnés précédemment, mais le passage de celle-ci sous les couteaux de marge est difficile ce qui entraîne des risques de bourrage et donc de destruction de feuilles.Finally, devices are known, such as that described in the French patent of the applicant published under the number 2,239,881, in which the sheet to be fed is pushed by a claw ruler animated with a longitudinal movement back and forth. , the sheet being moreover subjected to a low vacuum which presses it and straightens it on a flat structure called the margin table. This type of device provides better thrust of the sheet than the devices mentioned above, but the passage of the latter under the margin knives is difficult, which leads to risks of jamming and therefore destruction of sheets.

Le margeur conforme à l'inventïon.permet, tout en ne présentant pas les inconvénients des dispositifs précédents, de disposer de la sécurité de marge sous les couteaux inhérente aux margeurs à aspiration de l'art antérieur tout en ayant une parfaite sécurité au registre, quelle que soit l'épaisseur du carton. Il comporte une table de marge plate et substantiellement horizontale, une butée frontale ou "couteau de marge" permettant de laisser passer une feuille à-la fois, un poussoir arrière animé d'un mouvement de va-et-vient longitudinal et constitué par une règle de marge ou un ensemble de griffes alignées, présentant dans tous les cas un usinage avant en forme de talon pour recevoir le bord arrière de la feuille à pousser, une butée arrière destinée à supporter l'arrière du paquet de feuilles et placée au-dessus dudit poussoir, et est caractérisé en ce qu'il comporte en outre un ou plusieurs caissons aspirants situé (s) à l'avant et sous ladite table de marge et animé (s) d'un mouvement de va-et-vient longitudinal par l'intermédiaire d'une transmission liée à celle mouvant ledit poussoir de manière à ce que leurs courses soient substantiellement en concordance pendant au moins une première partie de la course avant dudit poussoir correspondant au minimum à la distance longitudinale de support du paquet par ladite butée arrière, le ou lesdits caissons étant reliés à un dispositif les mettant en dépression pendant ladite concordance de courses avant et relâchant ensuite ladite dépression.The feeder according to the invention allows, while not having the drawbacks of the previous devices, to have margin security under the knives inherent in suction feeders of the prior art while having perfect security in the register, regardless of the thickness of the carton. It includes a flat and substantially horizontal margin table, a front stop or "margin knife" allowing one sheet to pass at a time, a rear pusher animated with a longitudinal back and forth movement and constituted by a margin ruler or a set of aligned claws, having in all cases a front heel-shaped machining to receive the rear edge of the sheet to be pushed, a rear stop intended to support the rear of the sheet packet and placed at above said pusher, and is characterized in that it further comprises one or more suction boxes located (s) at the front and under said margin table and animated (s) with a longitudinal reciprocating movement by means of a transmission linked to that moving said pusher so that their strokes are substantially in concordance during at least a first part of the forward stroke of said pusher corresponding to at least the distance longed tudinal support of the package by said rear stop, the said box or boxes being connected to a device placing them in depression during said match of forward strokes and then releasing said depression.

L'invention sera mieux comprise à l'aide de la description suivante d'un exemple de réalisation d'un margeur destiné à équiper une machine de façonnage de caisses en carton ondulé, en référence aux dessins annexés dans lesquels :

  • - la figure 1 est une vue d'ensemble latérale et schématique du margeur de l'invention,
  • - la figure 2 est un graphique représentatif des courses du poussoir et du caisson aspirant.
The invention will be better understood using the following description of an exemplary embodiment of a feeder intended to equip a machine for shaping corrugated boxes, with reference to the accompanying drawings in which:
  • FIG. 1 is a side and schematic overview of the feeder of the invention,
  • - Figure 2 is a graph representative of the strokes of the pusher and the suction box.

En se reportant à la figure 1, le margeur de l'invention comporte les éléments classiques suivants des dispositifs connus, tel que par exemple celui décrit dans le brevet français publié sous le numéro 2.239.881 :

  • - un magasin 1 pour le paquet de feuilles 2 à distribuer,
  • - une structure 4 plate et substantiellement horizontale appelée "table de marge" dont une partie englobant partiellement sa moitié amont est mise en dépression faible par un caisson 5 relié à un ventilateur comme dans le cas du brevet précité.
Referring to FIG. 1, the feeder of the invention comprises the following conventional elements of known devices, such as for example that described in the French patent published under the number 2.239.881:
  • - a magazine 1 for the package of sheets 2 to be distributed,
  • - A flat and substantially horizontal structure 4 called "margin table", part of which partially encompasses its upstream half is placed in low vacuum by a box 5 connected to a fan as in the case of the aforementioned patent.

Dans le cas considéré, le caisson 5 s'étend en largeur sur environ les deux tiers de la table 4 et en longueur sur environ les trois quarts de celle-ci :

  • - une butée frontale 3, appelée "couteau", positionnée en hauteur par rapport à la table 4 de manière à ne laisser passer qu'une seule feuille vers les rouleaux entraîneurs 7,
  • - un poussoir constitué par une règle de marge 8 présentant de manière usuelle un talon avant 9 destiné à recevoir le bord arrière de chaque feuille.
In the case under consideration, the casing 5 extends in width over approximately two thirds of the table 4 and in length over approximately three quarters of the latter:
  • a front stop 3, called a "knife", positioned in height with respect to the table 4 so as to allow only one sheet to pass towards the driving rollers 7,
  • - A pusher constituted by a margin rule 8 usually having a front heel 9 intended to receive the rear edge of each sheet.

Par ailleurs, le margeur de l'invention comporte en outre :

  • - une butée arrière fixe 10 destinée au support de la partie arrière du paquet 2, placée immédiatement au-dessus de la règle de la marge 8, et munie d'une avancée 11 de longueur L
  • - un caisson aspirant mobile 12 semblable à celui décrit dans le brevet U.S. N° 3.226.108, placé sous l'avant de la table de marge 4, et relié à une pompe à vide par l'intermédiaire d'une électrovanne 13 et
d'une canalisation 14 ; comme dans le cas du brevet américain précité, le caisson 12 peut être animé d'un mouvement de va-et-vient longitudinal autour de la butée frontale 3, sa position de recul maximal étant celle figurée en traits pleins et sa position d'avancée maximale étant celle figurée en pointillés sur le dessin.Furthermore, the feeder of the invention further comprises:
  • a fixed rear stop 10 intended to support the rear part of the package 2, placed immediately above the margin rule 8, and provided with a projection 11 of length L
  • a mobile suction box 12 similar to that described in US Patent No. 3,226,108, placed under the front of the margin table 4, and connected to a vacuum pump via a solenoid valve 13 and
a line 14; as in the case of the aforementioned American patent, the box 12 can be moved in a longitudinal back-and-forth movement around the front stop 3, its position of maximum recoil being that shown in solid lines and its forward position maximum being that shown in dotted lines on the drawing.

Conformément à l'invention, le caisson 12 et la règle 8 sont liés cinématiquement l'un à l'autre de manière à ce que leurs . courses respectives de va-et-vient longitudinal soient conjuguées selon le graphique de la figure 2 où l'angle de course 9 est porté en abscisses, la distance de courses c en ordonnées, la courbe relative au caisson 12 étant tracée en trait fort et celle relative à la règle 8 en trait fin.According to the invention, the box 12 and the rule 8 are kinematically linked to each other so that their. the respective longitudinal reciprocating strokes are conjugated according to the graph in FIG. 2 where the stroke angle 9 is plotted on the abscissa, the stroke distance c on the ordinate, the curve relative to the box 12 being drawn in strong lines and that relating to rule 8 in thin lines.

Comme on le voit sur le graphique, ou le zéro est la position reculée extrême des deux éléments, les courses sont au début substantiellement en concordance sur une longueur C supérieure à la longueur L de l'avancée 13 de la butée 10 ; puis la règle 8 continue sa course alors que le caisson 12 reste sensiblement stationnaire, ce dernier revenant en arrière pendant la dernière phase du retour arrière de la règle 8.As can be seen in the graph, where zero is the extreme retracted position of the two elements, the strokes are at the start substantially in agreement over a length C greater than the length L of the projection 13 of the stop 10; then the rule 8 continues its course while the box 12 remains substantially stationary, the latter going backwards during the last phase of the backward return of the rule 8.

Par ailleurs-, toujours conformément à l'invention, on commande l'électrovanne 13, par exemple par une commande classique à cellules photoélectriques sensibles à la position longitudinale du caisson 12, de manière à ce que le vide soit appliqué sur le caisson 12, pendant la première partie C de la course correspondant à son avancée, puis soit relâché ensuite.Furthermore, still in accordance with the invention, the solenoid valve 13 is controlled, for example by a conventional control with photoelectric cells sensitive to the longitudinal position of the box 12, so that the vacuum is applied to the box 12, during the first part C of the race corresponding to its advance, then be released afterwards.

Comme on le voit sur la figure 1, les cycles respectifs selon le graphique de la figure 2 sont réalisés grâce à des moyens classiques à jeu de bielles et bielle-manivelle de la façon suivante :

  • Un ensemble (15,16) à bielle-manivelle lié cinématïquement aux rouleaux entraîneurs 7 communique un mouvement oscillant à un arbre 17 porteur d'un levier 18. Le levier 18 communique son mouvement d'oscillation d'une part au caisson 12 par l'intermédiaire d'un premier jeu de bielles (19,20), et d'autre part à la règle 8 par l'intermédiaire d'un second jeu de bielles (21,22), ces jeux de bielles étant agencés, par exemple comme sur la figure, de manière à communiquer au caisson 12 et à la règle 8 des mouvements longitudinaux conjugués conformément au graphique de la figure 2.
As can be seen in FIG. 1, the respective cycles according to the graph in FIG. 2 are carried out using conventional means with a set of connecting rods and connecting rod-crank as follows:
  • A crank-rod assembly (15, 16) linked kinematically to the driving rollers 7 communicates an oscillating movement to a shaft 17 carrying a lever 18. The lever 18 communicates its oscillation movement on the one hand to the box 12 by 1 'intermediate a first set of connecting rods (19,20), and on the other hand to rule 8 via a second set of connecting rods (21,22), these sets of connecting rods being arranged, for example as in the figure, so as to communicate to the box 12 and to the rule 8 conjugate longitudinal movements in accordance with the graph of FIG. 2.

Le fonctionnement du dispositif qui. vient d'être décrit est le suivant :

  • La position de départ étant celle représentée sur la figure 1, la règle 8 et le caisson 12 sont en position reculée maximale, la partie arrière des feuilles étant surélevée et supportée par l'avancée 11 de la butée 10, le bord avant du caisson 12 étant sensiblement à la verticale du couteau 3 et le talon 9 de la règle 8 légèrement en arrière de la verticale du bord arrière de la feuille inférieure 23 à introduire.
The operation of the device which. just described is the following :
  • The starting position being that shown in FIG. 1, the rule 8 and the box 12 are in the maximum retracted position, the rear part of the sheets being raised and supported by the projection 11 of the stop 10, the front edge of the box 12 being substantially vertical to the knife 3 and the heel 9 of the rule 8 slightly behind the vertical of the rear edge of the lower sheet 23 to be introduced.

Le vide étant appliqué sur le caisson 12 par ouverture de l'électrovanne 13, celui-ci entraîne alors en avançant la feuille inférieure 23 du paquet 2. Lorsque la feuille 23 a parcouru sa distance de support par l'avancée 11, au maximum égale à L, elle tombe sur la table 4 en venant se plaquer contre celle-ci grâce à l'aspiration légère due au caisson 5, son bord arrière venant se positionner contre le talon 9 de poussée de la règle 8 qui a entre temps avancé en concordance avec le caisson 12. Lorsque le caisson 12 et la règle 8 ont parcouru la course de concordance C, le vide sur le caisson 12 est relâché de sorte que son action sur la feuille 23 est stoppée, mais par contre la règle 8 continue son avance en poussant toujours la feuille 23 jusqu'à finalement l'introduire entre les rouleaux 7, qui poursuivent alors son entraînement, et revenir en arrière selon le graphique de la figure 2.The vacuum being applied to the box 12 by opening the solenoid valve 13, the latter then drives the lower sheet 23 of the package 2 forward. When the sheet 23 has covered its support distance by the projection 11, at most equal at L, it falls on the table 4 coming to be pressed against it thanks to the light suction due to the box 5, its rear edge coming to be positioned against the pushing heel 9 of the rule 8 which has meanwhile advanced in concordance with the caisson 12. When the caisson 12 and the rule 8 have traversed the concordance stroke C, the vacuum on the caisson 12 is released so that its action on the sheet 23 is stopped, but on the other hand rule 8 continues its advance by always pushing the sheet 23 until finally introducing it between the rollers 7, which then continue its drive, and reversing according to the graph in FIG. 2.

Pour arrêter l'introduction sans stopper l'ensemble de la machine, il suffit, par action sur l'électrovanne 13, de relâcher totalement le vide sur le caisson 12. Celui-ci, malgrè son mouvement de va-et-vient ne peut alors plus entraîner la feuille inférieure 23 qui reste en position sur l'avancée 11, la règle 8 n'ayant également aucune action sur celle-ci, puisqu'elle passe alors continuellement au dessous d'elle.To stop the introduction without stopping the whole machine, it suffices, by action on the solenoid valve 13, to completely release the vacuum on the casing 12. The latter, despite its back-and-forth movement, cannot then no longer entrain the lower sheet 23 which remains in position on the projection 11, the rule 8 also having no action thereon, since it then passes continuously below it.

On remarquera qu'avec le dispositif de l'invention, le talon de poussée 9 peut avoir une hauteur supérieure à l'épaisseur d'une feuille, de sorte qu'il est ainsi possible d'avoir l'efficacité maximale de poussée même avec des feuilles minces, en particulier sans risquer d'en endommager le bord arrière. Par ailleurs, dans le cas d'une feuille inférieure 23 qui serait tuilée ou courbée, ne pouvant donc passer sous le couteau 3 ce qui, avec les dispositifs antérieurs provoquerait un bourrage de carton, le caisson 12 n'aspirerait alors que de l'air de sorte que l'arrière de la feuille tuilée 23 resterait sur l'avancée 11 et l'introduction serait stoppée sans perte de matériau. Enfin, en cas de défaut de registre, la feuille ayant par exemple patiné sur le caisson 12, le dispositif de l'invention permet de récupérer ce défaut, car la feuille sera recalée au cycle suivant sur le talon de la règle, retrouvant ainsi sa bonne position de marge.It will be noted that with the device of the invention, the pushing heel 9 can have a height greater than the thickness of a sheet, so that it is thus possible to have the maximum pushing efficiency even with thin sheets, especially without damaging the rear edge. Furthermore, in the case of a lower sheet 23 which would be tiled or curved, therefore unable to pass under the knife 3 which, with the prior devices would cause a cardboard jam, the box 12 would then only suck air so the back of the tiled sheet 23 would remain on the advance 11 and the introduction would be stopped without loss of material. Finally, in the event of a register defect, the sheet having for example skated on the box 12, the device of the invention makes it possible to recover this defect, because the sheet will be readjusted in the next cycle on the heel of the rule, thus regaining its good margin position.

Claims (2)

1. Dispositif d'alimentation en feuilles d'une machine de traitement, du type comportant une table de marge (4) plate et substantiellement horizontale, une butée frontale (3) ou "couteau de marge" permettant de laisser passer une feuille à la fois, un poussoir (8) arrière animé d'un mouvement de va-et-vient longitudinal et une butée arrière (10) destinée à supporter l'arrière du paquet de feuilles (2) et placée au-dessus dudit poussoir, caractérisé en ce qu'il comporte en outre un ou plusieurs caissons aspirants (12) situé (s) à l'avant et sous ladite table de marge (4) et animés d'un mouvement de va-et-vient longitudinal par l'intermédiaire d'une transmission (19,20) liée à celle (21,22) mouvant ledit poussoir (8) de manière à ce que leurs courses soient subtantiellement en concordance pendant au moins une première partie (C) de la course avant dudit poussoir correspondant au minimum à la distance longitudinale (L) de support de paquet (2) par ladite butée arrière (11,10) le ou lesdits caissons (12) étant reliés à un dispositif (13,14) les mettant en dépression pendant ladite concordance (C) de courses avant et relâchant ensuite ladite dépression.1. Device for supplying sheets to a processing machine, of the type comprising a flat and substantially horizontal margin table (4), a front stop (3) or "margin knife" allowing a sheet to pass through the times, a rear pusher (8) driven in a longitudinal reciprocating movement and a rear stop (10) intended to support the rear of the sheet pack (2) and placed above said pusher, characterized in what it further comprises one or more suction boxes (12) located (s) at the front and under said margin table (4) and driven in a longitudinal reciprocating movement by means of 'A transmission (19,20) linked to that (21,22) moving said pusher (8) so that their strokes are substantially consistent during at least a first part (C) of the front stroke of said pusher corresponding to minimum to the longitudinal distance (L) of package support (2) by said rear stop (11,10) said or said s boxes (12) being connected to a device (13,14) putting them in depression during said match (C) of front strokes and then releasing said depression. 2. Dispositif selon la revendication 1, caractérisé en ce que le ou lesdits caissons (12) est/sont lié (s) audit poussoir (8) par une liaison cinématique à levier (18) et un jeu de bielles (20,19, et 21, 22) ainsi qu'aux rouleaux entraîneurs (7) situés à l'avant dudit dispositif par l'intermédiaire d'une liaison à bielle-manivelle (16,15).2. Device according to claim 1, characterized in that the said box or boxes (12) is / are linked to said pusher (8) by a kinematic lever connection (18) and a set of connecting rods (20,19, and 21, 22) as well as to the driving rollers (7) located at the front of said device by means of a connecting rod-crank link (16, 15).
EP19810400247 1980-02-22 1981-02-18 Device for feeding sheets to a processing machine Expired EP0035428B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8003925 1980-02-22
FR8003925A FR2476615A1 (en) 1980-02-22 1980-02-22 FEEDING DEVICE IN SHEETS OF A PROCESSING MACHINE

Publications (2)

Publication Number Publication Date
EP0035428A1 true EP0035428A1 (en) 1981-09-09
EP0035428B1 EP0035428B1 (en) 1983-05-11

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP19810400247 Expired EP0035428B1 (en) 1980-02-22 1981-02-18 Device for feeding sheets to a processing machine

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EP (1) EP0035428B1 (en)
DE (1) DE3160246D1 (en)
FR (1) FR2476615A1 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0133560A2 (en) * 1983-08-05 1985-02-27 Mitsubishi Jukogyo Kabushiki Kaisha Delivery device for sheet bodies
EP0451091A1 (en) * 1990-04-06 1991-10-09 De La Rue Giori S.A. Sheet feeder
EP2336059A1 (en) * 2009-12-18 2011-06-22 Müller Martini Holding AG Device and method for separating printed products out of a stack
CN101284612B (en) * 2008-06-12 2012-07-04 株式会社东芝 Paper loading machine, paper folding device and paper clearing system
CN104876040A (en) * 2015-04-13 2015-09-02 山东信川机械有限责任公司 Translation type paperboard conveyer
CN111620172A (en) * 2020-06-10 2020-09-04 许欢欢 Rigging machine with quick material loading structure
US11999583B2 (en) 2019-10-08 2024-06-04 Horizon International Inc. Sheet conveyance apparatus

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1568091A (en) * 1968-01-26 1969-05-23

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1568091A (en) * 1968-01-26 1969-05-23

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0133560A2 (en) * 1983-08-05 1985-02-27 Mitsubishi Jukogyo Kabushiki Kaisha Delivery device for sheet bodies
US4630812A (en) * 1983-08-05 1986-12-23 Mitsubishi Jukogyo Kabushiki Kaisha Delivery device for sheet bodies
EP0133560A3 (en) * 1983-08-05 1987-02-25 Mitsubishi Jukogyo Kabushiki Kaisha Delivery device for sheet bodies
EP0451091A1 (en) * 1990-04-06 1991-10-09 De La Rue Giori S.A. Sheet feeder
CN101284612B (en) * 2008-06-12 2012-07-04 株式会社东芝 Paper loading machine, paper folding device and paper clearing system
EP2336059A1 (en) * 2009-12-18 2011-06-22 Müller Martini Holding AG Device and method for separating printed products out of a stack
US8690151B2 (en) 2009-12-18 2014-04-08 Muller Martini Holding Ag Method and apparatus for separating out printed products from a stack
EP2740695A1 (en) * 2009-12-18 2014-06-11 Müller Martini Holding AG Device for separating printed products out of a stack
CN104876040A (en) * 2015-04-13 2015-09-02 山东信川机械有限责任公司 Translation type paperboard conveyer
US11999583B2 (en) 2019-10-08 2024-06-04 Horizon International Inc. Sheet conveyance apparatus
CN111620172A (en) * 2020-06-10 2020-09-04 许欢欢 Rigging machine with quick material loading structure

Also Published As

Publication number Publication date
FR2476615B1 (en) 1984-06-01
DE3160246D1 (en) 1983-06-16
EP0035428B1 (en) 1983-05-11
FR2476615A1 (en) 1981-08-28

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