EP1288145B1 - Cardboard sheets feeding device - Google Patents

Cardboard sheets feeding device Download PDF

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Publication number
EP1288145B1
EP1288145B1 EP02018579A EP02018579A EP1288145B1 EP 1288145 B1 EP1288145 B1 EP 1288145B1 EP 02018579 A EP02018579 A EP 02018579A EP 02018579 A EP02018579 A EP 02018579A EP 1288145 B1 EP1288145 B1 EP 1288145B1
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EP
European Patent Office
Prior art keywords
arms
raising
conveying
transport
level
Prior art date
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EP02018579A
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German (de)
French (fr)
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EP1288145A1 (en
Inventor
Roberto Valterio
Valery Naula
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Bobst SA
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Bobst SA
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Priority to CH16282001 priority Critical
Priority to CH16282001 priority
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Publication of EP1288145A1 publication Critical patent/EP1288145A1/en
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Publication of EP1288145B1 publication Critical patent/EP1288145B1/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H3/00Separating articles from piles
    • B65H3/34Article-retaining devices controlling the release of the articles to the separators
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B31MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31BMAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/02Feeding or positioning sheets, blanks or webs
    • B31B50/04Feeding sheets or blanks
    • B31B50/06Feeding sheets or blanks from stacks
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H3/00Separating articles from piles
    • B65H3/02Separating articles from piles using friction forces between articles and separator
    • B65H3/06Rollers or like rotary separators
    • B65H3/063Rollers or like rotary separators separating from the bottom of pile
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00Handling processes for sheets or webs
    • B65H2301/40Type of handling process
    • B65H2301/42Piling, depiling, handling piles
    • B65H2301/423Depiling; Separating articles from a pile
    • B65H2301/4232Depiling; 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
    • B65H2301/42322Depiling; 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00Handling processes for sheets or webs
    • B65H2301/40Type of handling process
    • B65H2301/42Piling, depiling, handling piles
    • B65H2301/423Depiling; Separating articles from a pile
    • B65H2301/4234Depiling; Separating articles from a pile assisting separation or preventing double feed
    • B65H2301/42344Depiling; Separating articles from a pile assisting separation or preventing double feed separating stack from the sheet separating means after separation step
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00Dimension; Position; Number; Identification; Occurence
    • B65H2511/10Size; Dimension
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2555/00Actuating means
    • B65H2555/10Actuating means linear
    • B65H2555/11Actuating means linear pneumatic
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2555/00Actuating means
    • B65H2555/10Actuating means linear
    • B65H2555/13Actuating means linear magnetic, e.g. linear solenoids
    • B65H2555/132Linear induction motors

Description

La présente invention se rapporte à un dispositif d'alimentation pour machine travaillant des feuilles de carton, comportant au moins un organe de transport pour le transport desdites feuilles une à une, des moyens d'entraínement de ces organes de transport, au moins une butée de retenue d'une pile desdites feuilles au-dessus desdits organes de transport et au moins un organe de soulèvement associé à chaque organe de transport, ces organes de soulèvement étant déplaçables alternativement entre deux positions limites, l'une dans laquelle ils sont au-dessus du niveau supérieur desdits organes de transport, l'autre dans laquelle ils sont sensiblement alignés par rapport à ce niveau supérieur.The present invention relates to a feeding device for machine working sheets of cardboard, comprising at least one member for transporting said sheets one by one, means for driving these transport members, at least one retaining stop a stack of said sheets above said transport members and at least a lifting member associated with each transport member, these members lifting means being movable alternately between two limit positions, one in which they are above the top level of said organs of transport, the other in which they are substantially aligned with respect to higher level.
On connaít de tels dispositifs, notamment ceux décrits dans le brevet CH-424 448 et dans le brevet CH-493 396. Ces dispositifs sont généralement utilisés pour l'introduction feuille à feuille de découpes de cartons dans des plieuses-colleuses, la pile de découpes de carton étant alternativement soulevée et abaissée pour que la base de cette pile passe d'un niveau situé au-dessus des organes de transport à un niveau situé sensiblement au niveau supérieur de ces organes de transport, mettant ainsi alternativement en prise la découpe inférieure de la pile avec les organes de transport destinés à introduire une à une ces découpes dans la plieuse-colleuse.Such devices are known, in particular those described in FIG. patent CH-424,448 and in patent CH-493,396. These devices are usually used for the introduction sheet to cut of cardboard blanks in folder-gluers, the stack of cardboard blanks being alternately raised and lowered so that the base of this pile goes from one level located above the transport organs at a level located substantially at the higher level of these transport alternatively engaged the lower cut of the stack with the organs of transport to introduce one by one these cuts in the folder-gluer.
Les mécanismes de soulèvement de ces dispositifs connus sont commandés soit par came ou par vérin pneumatique. Ces mécanismes d'actionnement sont reliés à un berceau portant tous les organes de soulèvement, de sorte que ceux-ci se déplacent selon un seul et même mouvement, soulevant simultanément la pile sur toute sa surface indistinctement. Or, lorsque les découpes ont des formes dont les longueurs respectives des différentes parties dans le sens du déplacement de ces découpes varient fortement, comme par exemple dans le cas de découpes de boítes avec couvercles, le soulèvement simultané de toutes les parties de la découpe n'est pas adapté, puisque lorsque le corps de boíte quitte les organes de transport, il faut empêcher que le corps de boíte de la découpe suivante vienne en contact avec ces organes de transport en le soulevant, mais par contre, la partie de découpe formant le couvercle se trouve alors encore sous la pile, de sorte qu'elle doit rester en contact avec les organes de transport jusqu'à ce qu'elle soit dégagée de la pile. Il est évident que les dispositifs existants ne sont pas adaptés à résoudre ce problème, de sorte que dans le cas de découpes du type susmentionné, celles-ci ont tendance à tourner au lieu de rester bien alignées dans l'axe des courroies de transport.The lifting mechanisms of these known devices are controlled by cam or pneumatic cylinder. These mechanisms actuators are connected to a cradle carrying all the uplift, so that these move according to one and the same movement, simultaneously lifting the pile over its entire surface indiscriminately. However, when the cuts have shapes whose lengths respective parties in the direction of the movement of these cuts vary greatly, as for example in the case of boxes with lids, the simultaneous lifting of all parts of the cutting is not suitable, since when the box body leaves the organs of transport, it is necessary to prevent that the body of box of the following cut come into contact with these transport devices by lifting it, but by against, the cutting part forming the lid is then still under the battery, so that it must remain in contact with the transport until it is clear of the battery. It is obvious that the devices existing ones are not suitable for solving this problem, so that in the In the case of cuts of the type mentioned above, these tend to turn instead of staying well aligned in the axis of the conveyor belts.
Le but de la présente invention est de remédier au moins en partie aux inconvénients susmentionnés.The object of the present invention is to remedy at least in part the aforementioned drawbacks.
A cet effet, la présente invention a pour objet un dispositif d'alimentation pour machine travaillant des feuilles de carton du type susmentionné tel que décrit dans la revendication 1.For this purpose, the subject of the present invention is a device feeding machine for working cardboard sheets of the type mentioned above as described in claim 1.
Grâce à ce dispositif, il est possible de différencier le mouvement de chaque paire d'organes de soulèvement en fonction de la géométrie de la découpe à introduire dans la plieuse-colleuse. Ainsi, le départ de ces découpes s'en trouve amélioré, celles-ci restant bien alignées par rapport à l'axe de transport. Ce dispositif permet également de mettre hors fonction les organes de soulèvement des organes de transport qui se trouveraient à l'extérieur de la pile de découpes. Cette possibilité permet d'accroítre la sécurité, de réduire la consommation d'air comprimé ainsi que le niveau sonore. Ceci permet à l'opérateur de programmer les différents mécanismes des organes de soulèvement en fonction de la répartition de ces mécanismes et de la géométrie de la ou des découpes à introduire dans la plieuse-colleuse.Thanks to this device, it is possible to differentiate the movement of each pair of lifting members according to the geometry of the cutting to be introduced into the folder-gluer. So, the departure of these cuts is improved, these remaining well aligned with the axis of transport. This device also makes it possible to deactivate the organs lifting of the transport organs which are outside the pile of cuts. This possibility makes it possible to increase safety, reduce the compressed air consumption as well as the sound level. This allows the operator to program the different mechanisms of the organs of uplift depending on the distribution of these mechanisms and the geometry of the cut-out (s) to be introduced into the folder-gluer.
Trois types de découpes bénéficient plus particulièrement de ces avantages, il s'agit tout d'abord des découpes à 4 coins collés pour lesquelles le dispositif selon l'invention permet d'obtenir une cadence de départ plus régulière des découpes.Three types of cuts benefit more particularly from these advantages, it is first and foremost cuts with 4 corners glued for which the device according to the invention makes it possible to obtain a higher start rate regular cuts.
Le deuxième type de découpes à 6 coins collés s'apparente sensiblement au premier type de découpes mentionné ci-dessus pour lesquelles les avantages procurés par le dispositif selon l'invention sont similaires.The second type of cut-outs with 6 corners is similar substantially to the first type of cuts mentioned above for which the advantages provided by the device according to the invention are Similar.
Le troisième type de découpes bénéficiant de ces avantages sont ce que l'on appelle les «découpes fonds automatiques», c'est-à-dire les découpes de boítes dans lesquelles le fond de la boíte se forme automatiquement lors de la mise en volume de celle-ci, et en particulier les découpes fonds automatiques disproportionnées avec couvercle pour lesquels le dispositif objet de l'invention permet de réduire le phénomène de mise de biais des découpes au démarrage.The third type of cutouts benefiting from these advantages are what are known as "automatic fund cutouts", that is to say the cutouts of boxes in which the bottom of the box is formed automatically when setting the volume of the latter, and in particular the disproportionate automatic cutouts with cover for which the device which is the subject of the invention makes it possible to reduce the phenomenon of setting through cuts at startup.
Enfin, le dispositif objet de cette invention permet d'envisager de nombreuses possibilités inconnues jusqu'ici, telles que la commande simultanée de plusieurs découpes ou d'une découpe et de son renfort.Finally, the device that is the subject of this invention makes it possible to envisage many possibilities unknown so far, such as the command simultaneous several cuts or a cut and its reinforcement.
Le dessin annexé illustre, schématiquement et à titre d'exemple, une forme d'exécution du dispositif de transport objet de la présente invention.
  • La figure 1 est une vue en perspective d'un organe de transport de ce dispositif d'alimentation;
  • les figures 2 et 3 sont des vues partielles en élévation latérale de l'organe de transport de la figure 1 dans deux positions différentes;
  • la figure 4 est un schéma-bloc de la commande des mécanismes de soulèvement de l'organe de soulèvement;
  • les figures 5 à 7 sont des vues en perspective du dispositif de transport illustrant trois phases d'un cycle d'introduction d'une découpe dans une machine plieuse-colleuse.
  • The accompanying drawing illustrates, schematically and by way of example, an embodiment of the transport device object of the present invention.
    • Figure 1 is a perspective view of a transport member of the feeder;
    • Figures 2 and 3 are partial side elevational views of the transport member of Figure 1 in two different positions;
    • Figure 4 is a block diagram of the control of lifting mechanisms of the lifting member;
    • Figures 5 to 7 are perspective views of the transport device illustrating three phases of a cycle of introduction of a cut in a folder-gluer machine.
    Le dispositif d'alimentation objet de l'invention comporte au moins un organe de transport illustré par la figure 1. Cet organe de transport comporte essentiellement un mécanisme transporteur de type connu, comprenant une bande transporteuse 1 entraínée par une poulie 2, la bande transporteuse 1 étant d'autre part guidée par des galets (non représentés). La bande transporteuse 1 de l'organe de transport peut être entraínée soit en mode continu, soit en mode alternatif. Elle peut se présenter soit sous la forme d'une courroie sans fin dans le cas d'un entraínement en mode continu, soit sous la forme d'un brin de courroie de longueur définie, ancrée à ses deux extrémités dans des poulies, dans le cas d'un entraínement en mode alternatif. Cet organe de transport est illustré en traits mixtes pour mieux faire ressortir un organe de soulèvement 3 dessiné en traits continus, qui comporte, dans le présent exemple, deux bras 4a, 4b de forme allongée, disposés de chaque côté de la bande transporteuse sans fin 1 et s'étendant sensiblement parallèlement au brin de transport 1a de cette bande transporteuse 1.The feed device which is the subject of the invention comprises at least a transport member illustrated in FIG. 1. This transport member comprises essentially a known type of conveyor mechanism, comprising a conveyor belt 1 driven by a pulley 2, the conveyor belt 1 being on the other hand guided by rollers (not shown). The band conveyor 1 of the transport member may be driven in either continuous, ie in alternative mode. It can be either in the form of a endless belt in the case of training in continuous mode, ie under the form of a belt strand of defined length, anchored at both ends in pulleys, in the case of training in alternative mode. This body of transport is shown in phantom lines to better highlight an organ of uprising 3 drawn in continuous lines, which includes, in the present two arms 4a, 4b of elongate shape, arranged on each side of the endless conveyor belt 1 and extending substantially parallel to the transport strand 1a of this conveyor belt 1.
    Les deux bras 4a, 4b de l'organe de soulèvement 3 sont montés pivotants autour d'un axe 5. Chaque bras 4a, 4b comporte une ouverture, dont seule l'une 6a est visible sur la figure 1. Chacune de ces ouvertures 6a est traversée par une butée en forme de tige cylindrique, dont seule l'une 7a est visible sur la figure 1. Ces butées 7a ont un diamètre sensiblement inférieur à celui des ouvertures 6a, de sorte que le déplacement des deux bras 4a, 4b de l'organe de soulèvement 3 est limité dans les deux sens par le contact entre les bords des ouvertures 6a et ces butées 7a. Pour réduire le bruit et les vibrations, les butées 7a sont entourées d'une bague en matériau amortisseur, tel que du polyuréthane 90° sh.The two arms 4a, 4b of the lifting member 3 are mounted pivoting about an axis 5. Each arm 4a, 4b has an opening, of which only one 6a is visible in FIG. 1. Each of these openings 6a is traversed by a stop in the form of a cylindrical rod, of which only one 7a is visible in FIG. 1. These abutments 7a have a diameter substantially smaller than that of the openings 6a, so that the displacement of the two arms 4a, 4b of the lifting member 3 is limited in both directions by the contact between the edges of the openings 6a and these stops 7a. To reduce noise and vibrations, the abutments 7a are surrounded by a ring of damping material, such as polyurethane 90 ° sh.
    Une paire de butées de précontraintes, dont seule l'une 8a est visible sur la figure 1 est située à proximité de l'axe de pivotement 5 de ces bras 4a, 4b. Cette paire de butées 8a est en élastomère et a pour fonction de rattraper le jeu qui peut se produire sur l'axe de pivotement 5 des bras 4a, 4b. Si l'on se reporte à nouveau à la figure 1, on observe qu'une tige transversale 20 relie les bras 4a, 4b l'un à l'autre. Cette tige 20 sert également à relier ces bras 4a, 4b à la tige d'un actuateur qui dans la présente exécution est un vérin d'actionnement pneumatique 21 commandé par une électro-vanne 22. Ce vérin 21 a pour fonction de déplacer les bras 4a, 4b de l'une à l'autre des positions limites définies par l'ouverture 6a et la butée 7a. Il est bien clair que d'autres types d'actuateurs tels qu'un moteur linéaire pourraient être choisis pour assurer cette fonction.A pair of prestressing abutments, of which only one 8a is visible in Figure 1 is located near the pivot axis 5 of these arm 4a, 4b. This pair of abutments 8a is made of elastomer and has the function of catch the play that can occur on the pivot axis 5 of the arms 4a, 4b. Referring again to FIG. 1, it is observed that a transverse rod 20 connects the arms 4a, 4b to each other. This rod 20 is also used to connect these arm 4a, 4b to the rod of an actuator which in the present embodiment is a jack pneumatic actuator 21 controlled by a solenoid valve 22. This cylinder 21 has the function of moving the arms 4a, 4b from one to the other of the positions limits defined by the opening 6a and the stop 7a. It is clear that others types of actuators such as a linear motor could be chosen to ensure this function.
    La partie supérieure de chaque bras 4a, 4b est équipée d'un patin 9a, 9b, dont le niveau est réglable par un mécanisme illustré par les figures 2 et 3. La face inférieure de chaque patin 9a, 9b, ici le patin 9a, présente deux plans inclinés 10a, 11a situés au voisinage de chacune de ses extrémités, chacun des plans inclinés 10a, 11a reposant sur un autre plan incliné 12a, respectivement 13a d'une coulisse 14a susceptible d'être déplacée longitudinalement par une vis de réglage 15a montée pivotante dans le bras 4a. Un même système de réglage se trouve sur le bras 4b. En faisant tourner la vis de réglage 15a, on déplace la coulisse 14a dans un sens ou dans l'autre, alors que le patin 9a est maintenu longitudinalement sur le bras 4a par deux portées 16a, 17a situées sur le patin qui coopèrent avec deux butées longitudinales 18a, respectivement 19a, situées sur le bras 4a. Ainsi, le niveau des patins 9a, 9b peut être modifié entre les deux positions extrêmes illustrées par les figures 2 et 3. Grâce à ce système de réglage le niveau des patins 9a, 9b peut être ajusté en fonction de l'usure des courroies transporteuses 1. En effet, ces courroies transporteuses 1 qui servent à faire partir successivement les découpes de la pile vers la machine de traitement de ces découpes subissent une forte usure due au frottement provoqué par le départ de chaque découpe, de sorte qu'il est utile de pouvoir régler le niveau des patins 9a, 9b en fonction de cette usure.The upper part of each arm 4a, 4b is equipped with a skid 9a, 9b, whose level is adjustable by a mechanism illustrated in FIGS. 3. The lower face of each pad 9a, 9b, here the pad 9a, has two planes inclined 10a, 11a located in the vicinity of each of its ends, each inclined planes 10a, 11a resting on another inclined plane 12a, respectively 13a of a slide 14a can be moved longitudinally by an adjusting screw 15a pivotally mounted in the arm 4a. The same adjustment system is on the arm 4b. By turning the screw 15a, the slide 14a is moved in one direction or the other, then that the pad 9a is held longitudinally on the arm 4a by two spans 16a, 17a located on the pad which cooperate with two longitudinal stops 18a, respectively 19a, located on the arm 4a. Thus, the level of the skates 9a, 9b can be modified between the two extreme positions illustrated by the figures 2 and 3. With this adjustment system the level of the pads 9a, 9b can be adjusted according to the wear of the conveyor belts 1. In fact, these conveyor belts 1 which serve to successively cutouts from the stack to the processing machine these cutouts undergo a high wear due to the friction caused by the departure of each cut, so that it is useful to be able to adjust the level of the pads 9a, 9b according of this wear.
    Le schéma-bloc de la figure 4 se rapporte au poste de commande du dispositif de transport et plus spécialement à la commande des vérins d'actionnement 21 en fonction de la forme des découpes à introduire successivement dans la machine de traitement de ces découpes. Ce poste de commande comporté un terminal T relié à un ordinateur C par quatre sorties, l'une PEB pour introduire la valeur de l'espacement entre les découpes, les sorties I et II relatives aux valeurs respectives (en particulier les dimensions dans le sens d'avance du dispositif de transport) des parties I et II des découpes (comme on l'expliquera à l'aide des figures 5 à 7) et enfin une sortie AGS relative aux groupes de mécanismes de commande des bras 4a, 4b de l'organe de soulèvement 3 qui doivent être actionnés simultanément pour le soulèvement des parties I, respectivement II de chaque découpe.The block diagram of Figure 4 relates to the control station of the transport device and more specifically to the control of the cylinders 21 depending on the shape of the cuts to be introduced successively in the processing machine of these cuts. This position of command comprises a terminal T connected to a computer C by four outputs, one PEB to introduce the value of the spacing between the cuts, the outputs I and II relating to the respective values (in particular the dimensions in the forward direction of the transport device) of Parts I and II of the cuts (as will be explained with the help of figures 5 to 7) and finally an exit AGS relating to the groups of control mechanisms of the arms 4a, 4b of the lifting member 3 which must be actuated simultaneously for the lifting of parts I and II of each cut.
    A partir des données fournies et des paramètres du dispositif de transport et de la machine (en particulier de la vitesse d'avance des découpes) dans laquelle les découpes doivent être introduites, l'ordinateur C commande sélectivement les électro-vannes 22 des vérins d'actionnement 21 des différents mécanismes de soulèvements 31 à 3n, des bras 4a, 4b de l'organe de soulèvement 3 du dispositif d'alimentation décrit ci-dessus.From the data provided and the parameters of the transport device and the machine (in particular the feed rate of the cuts) in which the cuts must be introduced, the computer C selectively controls the solenoid valves 22 of the jacks. 21 actuation of the various lifting mechanisms 3 1 to 3 n , arms 4a, 4b of the lifting member 3 of the feed device described above.
    Nous allons maintenant expliquer un cycle d'introduction d'une découpe dans la machine de traitement à l'aide des figures 5 à 7 qui en illustrent les différentes phases.We will now explain an introductory cycle of a cutting in the processing machine using Figures 5 to 7 which in illustrate the different phases.
    La figure 5 correspond à la phase 1 dans laquelle tous les bras 4a, 4b des organes de soulèvement 3 sont en position abaissée, de sorte que la découpe A est en contact avec toutes les bandes transporteuses 1 et est donc entraínée. La découpe A située au bas de la pile de découpes P est séparée des autres découpes.FIG. 5 corresponds to phase 1 in which all the arms 4a, 4b lifting members 3 are in the lowered position, so that the cutout A is in contact with all the conveyor belts 1 and is therefore driven. Cutout A located at the bottom of the cut pile P is separated other cuts.
    A la deuxième phase illustrée par la figure 6, la fin du corps de la découpe A a atteint la ligne de jauge J, c'est-à-dire la ligne de départ une à une des découpes de la pile de découpes vers la machine de traitement. Cette ligne est matérialisée par des butées 23, aussi appelées jauges d'introduction, dont la base est arrondie pour faciliter la séparation des découpes de la pile P et dont l'extrémité inférieure se termine à une distance de la bande transporteuse 1 correspondant sensiblement à l'épaisseur d'une découpe de carton pour permettre le départ une à une de ces découpes et leur introduction dans la machine de travail.In the second phase illustrated in Figure 6, the end of the body of the cut A has reached gauge line J, i.e. the start line one to one cuts of the cut pile to the processing machine. This line is materialized by abutments 23, also called introduction gauges, whose the base is rounded to facilitate the separation of the cuts of the pile P and whose lower end ends at a distance from the conveyor belt 1 substantially corresponding to the thickness of a carton blank for allow one to one departure from these cuts and their introduction into the working machine.
    A ce stade du processus d'introduction, les bras 4a, 4b des organes de soulèvement 3 qui se situent dans la partie I de la découpe doivent se soulever pour empêcher que le corps de la découpe B suivante ne vienne en contact avec les bandes transporteuses 1, ce qui aurait pour conséquence de la mettre de biais. Les bras 4a, 4b des organes de soulèvement 3 qui se situent dans la partie II de la découpe A correspondant au couvercle, restent abaissés étant donné que cette partie de la découpe est encore sous la pile P.At this stage of the introduction process, arms 4a, 4b lifting members 3 which are located in the part I of the blank shall lift to prevent the body of the next B cut from coming in contact with the conveyor belts 1, which would have the consequence to put it at an angle. The arms 4a, 4b of the lifting members 3 which are located in part II of the cutout A corresponding to the cover, remain lowered as this portion of the blank is still under the stack P.
    A la phase suivante illustrée par la figure 7, correspondant au moment où la fin du couvercle (partie I de la découpe A) a atteint la ligne de jauge J, les bras 4a, 4b des organes de soulèvement 3 qui se situent dans la partie II de la découpe A sont déplacés vers le haut pour que toute la surface de la découpe B suivante soit séparée des bandes transporteuses 1, empêchant cette découpe B de partir vers la machine de traitement. In the next phase illustrated in Figure 7, corresponding to when the end of the cover (part I of the cutout A) has reached the line of gauge J, the arms 4a, 4b of the lifting members 3 which are located in the part II of the cut A are moved upwards so that the whole surface the following cut B is separated from the conveyor belts 1, preventing this cut B from going to the processing machine.
    A un instant donné, tous les bras 4a, 4b des organes de soulèvement 3 sont abaissés amorçant ainsi le départ de la découpe B suivante.At a given moment, all the arms 4a, 4b of the uplift 3 are lowered thus starting the departure of the cut B next.
    L'exemple décrit se rapporte à la commande des bras 4a, 4b des organes de soulèvement 3 en deux temps, correspondant aux deux parties I et II des découpes. Bien évidemment, l'invention n'est pas limitée à cet exemple. A la limite et si nécessaire, chaque organe de soulèvement 3 peut être commandé à un instant différent ou peut être neutralisé. De même, le nombre des organes de soulèvement 3 peut varier, notamment en fonction de l'importance de la largeur du dispositif de transport.The example described relates to the control of arms 4a, 4b uprising members 3 in two stages corresponding to both parts I and II cuts. Obviously, the invention is not limited to this example. At the limit and if necessary, each lifting member 3 can be commanded at a different time or can be neutralized. Similarly, the number lifting members 3 may vary, in particular as a function of the importance of the width of the transport device.

    Claims (6)

    1. Supply device for a machine processing cardboard sheets, comprising at least one conveying means for conveying said sheets one by one, driving means (2) for the conveying means, at least one stop means (23) for a pile (P) of said sheets above said conveying means, at least one raising means (3) alternately movable between two limit positions, one position being above the upper level of said conveying means, the other being substantially aligned according to this upper level, characterized in that each raising means (3) is connected to a programmable control station (T, C) for providing an individual control of each raising means (3).
    2. Device according to claim 1, characterized in that said raising means (3) comprise two arms (4a, 4b) extending parallel to said conveying means and pivotally mounted at one of their ends about an axis (5), each pair of said arms (4a, 4b) of the raising means (3) being coupled to an actuator adapted to pivot said arm between said two limit positions, this actuator being operated by an electrovalve (22) connected to said programmable control station (T, C).
    3. Device according to claim 2, characterized in that an elastomeric stop (8a) is arranged to constrain the position of said arms (4a, 4b) when the arms (4a, 4b) of the raising means (3) are substantially aligned with the upper level of the conveying means.
    4. Device according to claim 3, characterized in that each arm (4a, 4b) of the raising means (3) carries a raising shoe (9a, 9b) connected to said arms (4a, 4b) by setting means (10a - 15a) for setting the level of said raising shoe (9a, 9b) with respect to said arms (4a, 4b).
    5. Device according to claim 2, characterized in that the actuator is a pneumatic cylinder (21).
    6. Device according to claim 5, characterized in that the actuator is a linear motor.
    EP02018579A 2001-08-31 2002-08-19 Cardboard sheets feeding device Active EP1288145B1 (en)

    Priority Applications (2)

    Application Number Priority Date Filing Date Title
    CH16282001 2001-08-31
    CH16282001 2001-08-31

    Publications (2)

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    EP1288145A1 EP1288145A1 (en) 2003-03-05
    EP1288145B1 true EP1288145B1 (en) 2004-05-19

    Family

    ID=4565698

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP02018579A Active EP1288145B1 (en) 2001-08-31 2002-08-19 Cardboard sheets feeding device

    Country Status (12)

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    US (1) US6708970B2 (en)
    EP (1) EP1288145B1 (en)
    JP (1) JP3890001B2 (en)
    KR (1) KR100455795B1 (en)
    CN (1) CN1216776C (en)
    AT (1) AT267133T (en)
    BR (1) BR0203436B1 (en)
    CA (1) CA2399785C (en)
    DE (1) DE60200505T2 (en)
    DK (1) DK1288145T3 (en)
    ES (1) ES2221914T3 (en)
    TW (1) TW583074B (en)

    Families Citing this family (4)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    JP5282333B2 (en) * 2008-01-07 2013-09-04 株式会社Isowa Conveyor device
    CN103662175B (en) * 2013-12-11 2015-10-28 广州市万世德包装机械有限公司 Paper machine in pickup formula
    WO2017001286A1 (en) * 2015-06-29 2017-01-05 Tetra Laval Holdings & Finance S.A. An apparatus for transporting blanks and a method thereof
    CN109850253B (en) * 2018-12-25 2020-12-01 四川汇利实业有限公司 Intermittent type formula medicine packing box cardboard conveying mechanism

    Family Cites Families (13)

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    Publication number Priority date Publication date Assignee Title
    CH493396A (en) * 1965-07-23 1970-07-15 Bobst Fils Sa J Feeder for machine working with cardboard sheets
    CH424448A (en) 1965-07-23 1966-11-15 Bobst Fils Sa J Feeder for machine working with cardboard sheets
    FR2011540A1 (en) * 1968-06-24 1970-03-06 Bobst Fils Sa J
    JPS5250424A (en) * 1975-10-21 1977-04-22 Ishikawajima Harima Heavy Ind Co Ltd Ignition time detecting process and apparatus of internal combustion e ngine
    US4200033A (en) * 1978-02-16 1980-04-29 Labombarde Raymond A Box blank feed, transfer and glueing control apparatus
    US4681311A (en) * 1983-11-09 1987-07-21 Wm. C. Staley Machinery Corporation Intermittently protruding feeder for paperboard blanks
    JPS58104837A (en) * 1981-12-15 1983-06-22 Matsushita Electric Works Ltd Loader for flush panel
    US4961566A (en) * 1986-11-14 1990-10-09 International Paper Box Machine Co., Inc. Apparatus for feeding sheets from a stack of sheets
    JPH03152030A (en) * 1989-11-09 1991-06-28 Koyabe Seiki:Kk Blank pick up device for destack feeder
    JPH08127417A (en) * 1993-06-22 1996-05-21 Tsushima Kikai Seisakusho:Kk High speed sorting device for article
    JPH07315574A (en) * 1994-05-26 1995-12-05 Okura Yusoki Co Ltd Picking device
    KR0132177Y1 (en) * 1994-10-26 1998-12-01 곽문재 Paper arrangement device
    JP4000429B2 (en) * 1997-12-25 2007-10-31 株式会社タナベインターナショナル Blank sheet feeder

    Also Published As

    Publication number Publication date
    AT267133T (en) 2004-06-15
    DE60200505T2 (en) 2005-06-23
    CA2399785A1 (en) 2003-02-28
    KR20030019221A (en) 2003-03-06
    US6708970B2 (en) 2004-03-23
    BR0203436A (en) 2003-05-20
    TW583074B (en) 2004-04-11
    BR0203436B1 (en) 2010-06-29
    JP3890001B2 (en) 2007-03-07
    DK1288145T3 (en) 2004-09-27
    JP2003175557A (en) 2003-06-24
    ES2221914T3 (en) 2005-01-16
    KR100455795B1 (en) 2004-11-06
    CA2399785C (en) 2006-06-13
    CN1216776C (en) 2005-08-31
    CN1403358A (en) 2003-03-19
    DE60200505D1 (en) 2004-06-24
    EP1288145A1 (en) 2003-03-05
    US20030057631A1 (en) 2003-03-27

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