EP1647376B1 - Method and device for the reception of a sheet in a machine for the processing of elements in the form of a board - Google Patents

Method and device for the reception of a sheet in a machine for the processing of elements in the form of a board Download PDF

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Publication number
EP1647376B1
EP1647376B1 EP04405644A EP04405644A EP1647376B1 EP 1647376 B1 EP1647376 B1 EP 1647376B1 EP 04405644 A EP04405644 A EP 04405644A EP 04405644 A EP04405644 A EP 04405644A EP 1647376 B1 EP1647376 B1 EP 1647376B1
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EP
European Patent Office
Prior art keywords
grippers
sheet
delivery
stops
frame
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.)
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Application number
EP04405644A
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German (de)
French (fr)
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EP1647376A1 (en
Inventor
Jean-Bernard De Dompierre
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.)
Bobst Mex SA
Original Assignee
Bobst SA
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Filing date
Publication date
Application filed by Bobst SA filed Critical Bobst SA
Priority to EP04405644A priority Critical patent/EP1647376B1/en
Priority to ES04405644T priority patent/ES2298710T3/en
Priority to DE602004011618T priority patent/DE602004011618T2/en
Priority to AT04405644T priority patent/ATE385215T1/en
Priority to PL04405644T priority patent/PL1647376T3/en
Priority to JP2005301870A priority patent/JP4098801B2/en
Publication of EP1647376A1 publication Critical patent/EP1647376A1/en
Application granted granted Critical
Publication of EP1647376B1 publication Critical patent/EP1647376B1/en
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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
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/02—Delivering or advancing articles from machines; Advancing articles to or into piles by mechanical grippers engaging the leading edge only of the articles
    • B65H29/04—Delivering or advancing articles from machines; Advancing articles to or into piles by mechanical grippers engaging the leading edge only of the articles the grippers being carried by endless chains or bands
    • B65H29/041—Delivering or advancing articles from machines; Advancing articles to or into piles by mechanical grippers engaging the leading edge only of the articles the grippers being carried by endless chains or bands and introducing into a pile
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/01—Means for holding or positioning work
    • B26D7/015—Means for holding or positioning work for sheet material or piles of sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/30—Chains
    • B65H2404/34—Gripper bars bridging at least two chains running synchronously and parallely
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/70—Other elements in edge contact with handled material, e.g. registering, orientating, guiding devices
    • B65H2404/72—Stops, gauge pins, e.g. stationary
    • 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
    • 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
    • B65H2701/1762—Corrugated

Definitions

  • the present invention relates to a method and to a full sheet receiving station of a plate element processing machine comprising a receiving frame provided with storage stops and transverse clip bars whose respective ends are integral with two respective flexible drive elements in the form of endless loops for transporting the sheets in operation.
  • the leading edges of the respective sheets are pinched in the grippers of the gripper bar of the sheet-carrying device and the waste of the sheet, after separation of the layers, is driven by the gripper bar towards the position of the gripper bar. 'waste disposal.
  • the sheet is released by the clip bar and an ejector pushes it back against its leading edge to pull it out of the clamps and stack it on a single storage stack formed between set vertical storage stops. in the format of the sheets to be stacked.
  • the object of the present invention is to reduce the deformation of the leaves at the time of their stop to stack them in the receiving frame of the receiving station of the processing machine.
  • this invention firstly relates to a method of receiving a solid sheet in a receiving station of a plate element processing machine according to claim 1.
  • This invention also relates to a full sheet receiving station of a plate element processing machine according to claim 2.
  • the leaf ejector is removed, so that the leaves are no longer subject to a recoil movement communicated to them by the ejector.
  • This full sheet receiving mode substantially reduces the deformation of the sheet induced by its deceleration during its stop, since it is no longer subject to a backward movement and therefore the risk of breaking the points of attachment connecting the cut-out poses in the sheet.
  • the first and second cams of the receiving station are removably mounted relative to the trajectory of said clip bars to enable this station to work according to the poses separation mode, in which the clips of the clip bar must remain closed to evacuate the waste portion of the sheet secured to the clamps of the gripper bar.
  • the attached drawing illustrates, schematically and by way of example, an embodiment of a receiving station of a sheet converting machine, object of the present invention, adapted to the implementation of the method, another object of this invention.
  • Figure 1 is a partial perspective view of this full sheet receiving station
  • Figure 2 is an enlarged side elevational view of a detail of Figure 1.
  • sheet, plate or plate element apply indistinctly to sheets of paper, solid or corrugated cardboard, plastic or laminates.
  • the processing machine is in particular a machine for cutting blanks in plate elements.
  • the receiving station SR of the plate-forming machine illustrated in part by FIG. 1 comprises a frame 1 on which a full-leaf receiving drawer frame 2 is mounted slidingly, provided with spaced front storage stops 3. others to allow the passage of the clamps of the clamp bar, as will be explained later.
  • This frame-drawer 2 is slidably mounted on the support for receiving the lower tool for separating poses, when the receiving station does not receive full sheets, but separate poses.
  • the frame 1 still carries two chains in parallel endless loops 4a, 4b arranged laterally on either side of the path of the sheets in the processing machine.
  • These chains 4a, 4b are engaged in the usual manner with chain wheels (not shown) and are driven by one of them engaged with the drive motor (not shown) of the machine.
  • These chains 4a, 4b are integral with the two respective ends of clamp bars 5 which extend transversely to the path of the sheets in the processing machine and therefore parallel to the transverse edges of these sheets.
  • the clamps 5a of the clamp bar 5 are directed towards the rear of the clamp bar with respect to the transport direction F of these sheets and serve to pinch the leading edges of the sheets for transporting them through the processing machine.
  • the lower arms of these clamps 5a are fixed, while their upper arms are integral with a transverse support shaft 7.
  • connection between the ends of the gripper bar 5 and the chains 4a, 4b is obtained by two respective connecting pieces 11a, 11b which also serve as a pivot bearing at the respective ends of the transverse support shaft 7 which still passes through. support bearings (not shown) distributed along the clamp bar 5.
  • the upper arms of the clamps 5a are resiliently pressed in the closed position of the clamps 5a by return springs 12.
  • the full sheet receiving station SR comprises, on the respective trajectories of two rollers 7a, 7b carried by the ends of the support shaft 7 of the clamps 5a of the clamp bar 5 and at the downstream end of this station, two lowering cams 6a, 6b of the support shaft 7 of the gripper bar 5.
  • This lowering of the support shaft 7 causes a pull on the chains 4a, 4b which makes it possible to lower the rear part of the bar clamps 5 of a few mm.
  • fixed guides 8a, 8b are arranged on the internal side of the trajectories of these chains 4a, 4b, at the output of the receiving station SR, where the respective trajectories of these chains 4a, 4b become curved.
  • the downstream transverse portion of the drawer frame 2 carries at least one, preferably two lower cams 9a, 9b for opening the clamps 5a of the clamp bar 5.
  • These lower cams 9a, 9b are respectively close to the ends of this downstream transverse part of the drawer frame 2, on the respective trajectories of two opening rollers 10a, 10b of the upper branches of the clamps 5a.
  • opening rollers 10a, 10b are pivotally mounted on pins 16a, 16b parallel to the support shaft 7 of the upper arms of the clamps 5a of the clamp bar 5, and are connected by a lever 15 to the support shaft 7, allowing it to rotate about its longitudinal axis by driving the upper arms of the clamps 5a, against the pressure of the return springs 12 and to discard these branches upper branches, as illustrated in particular in Figure 2.
  • the level of the upper cams 6a, 6b is located so that the rear ends of the clamps 5a pass below the upper edges of the front storage stops 3 of the full-leaf receiving frame 2, as illustrated in particular by FIG. 2.
  • the level of the lower cams 9a, 9b is also chosen so that the lowering of the rear part of the gripper bar 5 presses the opening rollers 10a, 10b of the grippers 5a against the lower cams 9a, 9b, causing the clamps 5a to open when they pass between the front storage stops 3.
  • the sheets held by the clamps 5a are held by the storage stops 3, which are static, unlike the ejectors which have a movement opposite that of leaves.
  • the lowering of the rear portion of the clamp bar 5 opens the clamps, which in itself is done on all the clamp bars, but the originality comes from the fact that this opening is obtained at the moment when the clamps 5a of the clamp bar 5 are at the same time lowered and pass between the storage stops before 3 of the storage frame-drawer 2, allowing these stops of Stowage 3 to further fill the role of static ejector of the full sheets.
  • This ejection mode substantially reduces the deformation wave of the sheet, resulting from its shutdown, because only the sheet moves, while the stops 3 are fixed, unlike the conventional ejector that moves in the opposite direction of the sheet.
  • the drawer frame 2 When the station is to receive the blanks cut from the sheet as separate blanks, the drawer frame 2 must be removed from the side of the machine and replaced by the lower blanking tool. Since the lower cams 9a, 9b of the opening of the clamps 5a of the clamp bars 5 are integral with the frame-drawer 2, the removal thereof also causes that of these cams 9a, 9b.
  • each upper cam 6a, 6b of lowering the support shaft 7 of the grippers 5a of the gripper bar 5 must be retracted to prevent collision of the gripper bars 5 with the lower parting separation tool.
  • each upper cam 6a, 6b is connected to the frame 1 by a pivot axis 13.
  • Two tappings (not shown) formed in the frame and located on an arc of a circle centered on the pivot axis 13 of each cam upper 6a, 6b are intended to selectively receive a threaded rod 14 controlled by a handle 14a secured to its outer end.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Discharge By Other Means (AREA)
  • Pile Receivers (AREA)
  • Making Paper Articles (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

The method involves spacing front storage stoppers (3) of a receiving slide-frame to permit a passage of grippers (5a) of a gripper bar (5) between the stoppers. The bar is inclined around a cross shaft, to lower the grippers below respective upper edges of the stoppers, while simultaneously opening the grippers, to separate a full sheet from the grippers by bringing a front edge of the sheet against the stoppers. An independent claim is also included for a full sheet receiving station of a plate like components transformation machine.

Description

La présente invention se rapporte à un procédé et à une station de réception pleine feuille d'une machine de transformation d'éléments en plaques comprenant un cadre de réception muni de butées de rangement et des barres de pinces transversales dont les extrémités respectives sont solidaires de deux éléments souples d'entraînement respectifs en forme de boucles sans fins pour le transport des feuilles en travail.The present invention relates to a method and to a full sheet receiving station of a plate element processing machine comprising a receiving frame provided with storage stops and transverse clip bars whose respective ends are integral with two respective flexible drive elements in the form of endless loops for transporting the sheets in operation.

Lors du découpage de feuilles ou de plaques de carton dans une presse à découper, on peut, suivant le genre de travail effectué sur la presse, recueillir les poses séparément sous la forme de piles distinctes ou réceptionner la feuille pleine, notamment si celle-ci doit encore passer dans une machine pour y subir une autre opération, après découpage de la feuille et avant la séparation des poses.When cutting sheets or sheets of cardboard in a cutting press, depending on the type of work done on the press, it is possible to collect the packs separately in the form of separate piles or to receive the solid sheet, in particular if the latter must still go into a machine to undergo another operation, after cutting the sheet and before the separation of the poses.

Dans le premier cas, les bords avant des feuilles respectives restent pincés dans les pinces de la barre de pinces du dispositif de transport des feuilles et le déchet de la feuille, après séparation des poses, est entraîné par la barre de pinces vers le poste d'évacuation des déchets.In the first case, the leading edges of the respective sheets are pinched in the grippers of the gripper bar of the sheet-carrying device and the waste of the sheet, after separation of the layers, is driven by the gripper bar towards the position of the gripper bar. 'waste disposal.

Dans le second cas, la feuille est lâchée par la barre de pinces et un éjecteur la pousse en arrière en venant contre son bord avant pour la sortir des pinces et l'empiler sur une seule pile de stockage formée entre des butées de rangement verticales réglées au format des feuilles à empiler.In the second case, the sheet is released by the clip bar and an ejector pushes it back against its leading edge to pull it out of the clamps and stack it on a single storage stack formed between set vertical storage stops. in the format of the sheets to be stacked.

L'utilisation d'un éjecteur classique est nécessaire pour arrêter la feuille afin de la sortir des pinces de la barre de pinces. Toutefois, l'éjecteur doit être animé d'un mouvement de sens contraire à celui de la feuille pour venir à la rencontre de celle-ci en passant entre les pinces de la barre de pinces au moment où ces pinces s'ouvrent, d'où le mouvement de recul imprimé à la feuille lors de son arrêt. Compte tenu de l'énergie cinétique de celle-ci au moment où elle rencontre l'éjecteur, cet arrêt brusque avec mouvement de recul produit une déformation de la feuille qui se propage comme une onde à travers elle. Cette onde de déformation présente le risque de rompre des points d'attache reliant les poses préalablement découpées à la feuille voire entre elles, ce qui n'est évidemment pas souhaitable puisque ces points sont destinés à conserver l'intégrité de la feuille, malgré le découpage des poses, jusqu'au moment choisi pour les séparer.The use of a conventional ejector is required to stop the sheet from being pulled out of the clamp bar clamps. However, the ejector must be animated by a movement of meaning contrary to that of the sheet to come to meet it by passing between the clamps of the clamp bar at the moment when these clamps open, from where the recoil motion printed on the sheet when it stops. Given the kinetic energy of the latter when it encounters the ejector, this abrupt stop with recoil motion produces a deformation of the sheet that propagates like a wave through it. This wave deformation has the risk of breaking attachment points connecting the previously cut poses to the sheet or between them, which is obviously not desirable since these points are intended to maintain the integrity of the sheet, despite the cutting of the poses, until the moment chosen to separate them.

Le but de la présente invention est de réduire la déformation des feuilles au moment de leur arrêt pour les empiler dans le cadre de réception de la station de réception de la machine de traitement.The object of the present invention is to reduce the deformation of the leaves at the time of their stop to stack them in the receiving frame of the receiving station of the processing machine.

A cet effet, cette invention a tout d'abord pour objet un procédé de réception d'une feuille pleine dans une station de réception d'une machine de traitement d'éléments en plaques selon la revendication 1. Cette invention a également pour objet une station de réception pleine feuille d'une machine de transformation d'éléments en plaques selon la revendication 2.To this end, this invention firstly relates to a method of receiving a solid sheet in a receiving station of a plate element processing machine according to claim 1. This invention also relates to a full sheet receiving station of a plate element processing machine according to claim 2.

Grâce au procédé selon la présente invention, l'éjecteur de feuilles est supprimé, en sorte que les feuilles ne sont plus soumises à un mouvement de recul qui leur est communiqué par cet éjecteur. Ce mode de réception pleine feuille réduit sensiblement la déformation de la feuille induite par sa décélération lors de son arrêt, dans la mesure où elle n'est plus soumise à un mouvement de recul et par conséquent, le risque de rompre les points d'attache reliant les poses découpées dans la feuille.With the method according to the present invention, the leaf ejector is removed, so that the leaves are no longer subject to a recoil movement communicated to them by the ejector. This full sheet receiving mode substantially reduces the deformation of the sheet induced by its deceleration during its stop, since it is no longer subject to a backward movement and therefore the risk of breaking the points of attachment connecting the cut-out poses in the sheet.

Avantageusement, les première et seconde cames de la station de réception sont montées de manière amovible par rapport à la trajectoire desdites barres de pinces pour permettre à cette station de travailler selon le mode de séparation de poses, dans lequel les pinces de la barre de pinces doivent rester fermées pour évacuer la portion de déchet de la feuille solidaire des pinces de la barre de pinces.Advantageously, the first and second cams of the receiving station are removably mounted relative to the trajectory of said clip bars to enable this station to work according to the poses separation mode, in which the clips of the clip bar must remain closed to evacuate the waste portion of the sheet secured to the clamps of the gripper bar.

Le dessin annexé illustre, schématiquement et à titre d'exemple, une forme d'exécution d'une station de réception d'une machine de transformation de feuille, objet de la présente invention, adaptée à la mise en oeuvre du procédé, autre objet de cette invention.The attached drawing illustrates, schematically and by way of example, an embodiment of a receiving station of a sheet converting machine, object of the present invention, adapted to the implementation of the method, another object of this invention.

La figure 1 est une vue partielle en perspective de cette station de réception pleine feuille;Figure 1 is a partial perspective view of this full sheet receiving station;

la figure 2 est une vue en élévation latérale agrandie d'un détail de la figure 1.Figure 2 is an enlarged side elevational view of a detail of Figure 1.

En préambule à la description qui suit, il est précisé que les termes de feuille, de plaque ou d'élément en plaque s'appliquent indistinctement à des feuilles de papier, de carton plein ou ondulé, de plastique ou de stratifiés. La machine de traitement est notamment une machine de découpage de poses dans des éléments en plaque.As a preamble to the description which follows, it is specified that the terms sheet, plate or plate element apply indistinctly to sheets of paper, solid or corrugated cardboard, plastic or laminates. The processing machine is in particular a machine for cutting blanks in plate elements.

Compte tenu du fait que les deux côtés de la station de réception pleine feuille de la machine décrite sont symétriques, tout au moins en ce qui concerne les éléments utiles à la compréhension de l'invention, seul le côté conducteur de cette station de réception est représenté sur la figure 1 et est décrit. Les chiffres de références relatifs aux éléments qui se trouvent des deux côtés de la station de réception sont accompagnés des lettres "a", "b" pour les éléments situés côté conducteur, respectivement du côté opposé au conducteur. Pour cette raison, les chiffres de références accompagnés de la lettre "b", ne figurent pas au dessin, mais sont indiqués dans le texte pour mentionner les éléments symétriques à ceux qui sont visibles du côté conducteur de la station de réception.In view of the fact that both sides of the full-sheet receiving station of the described machine are symmetrical, at least with regard to the elements useful for understanding the invention, only the driver side of this receiving station is shown in Figure 1 and is described. The reference figures for the elements on both sides of the receiving station are accompanied by the letters "a", "b" for the driver-side elements, respectively on the opposite side to the driver. For this reason, the reference numbers accompanied by the letter "b", do not appear in the drawing, but are indicated in the text to mention the elements symmetrical to those visible on the driver's side of the receiving station.

La station de réception SR de la machine de transformation d'éléments en plaques illustrée en partie par la figure 1 comporte un bâti 1 sur lequel est monté coulissant un cadre-tiroir 2 de réception pleine feuille muni de butées de rangement avant 3 espacées les unes des autres pour permettre le passage des pinces de la barre de pinces, comme on l'expliquera par la suite. Ce cadre-tiroir 2 est monté coulissant sur le support destiné à recevoir l'outil inférieur de séparation des poses, lorsque la station de réception ne réceptionne pas des feuilles pleines, mais des poses séparées.The receiving station SR of the plate-forming machine illustrated in part by FIG. 1 comprises a frame 1 on which a full-leaf receiving drawer frame 2 is mounted slidingly, provided with spaced front storage stops 3. others to allow the passage of the clamps of the clamp bar, as will be explained later. This frame-drawer 2 is slidably mounted on the support for receiving the lower tool for separating poses, when the receiving station does not receive full sheets, but separate poses.

Le bâti 1 porte encore deux chaînes en boucles sans fins parallèles 4a, 4b disposées latéralement de part et d'autre de la trajectoire des feuilles dans la machine de transformation. Ces chaînes 4a, 4b sont en prise, de manière habituelle avec des roues à chaînes (non représentées) et sont entraînées par l'une d'elles en prise avec le moteur d'entraînement (non représenté) de la machine. Ces chaînes 4a, 4b sont solidaires des deux extrémités respectives de barres de pinces 5 qui s'étendent transversalement à la trajectoire des feuilles dans la machine de traitement et donc parallèlement aux bords transversaux de ces feuilles. Les pinces 5a de la barre de pince 5 sont dirigées vers l'arrière de la barre de pinces par rapport à la direction F de transport de ces feuilles et servent à pincer les bords avant des feuilles pour les transporter à travers la machine de traitement. Les bras inférieurs de ces pinces 5a sont fixes, tandis que leurs bras supérieurs sont solidaires d'un arbre de support transversal 7.The frame 1 still carries two chains in parallel endless loops 4a, 4b arranged laterally on either side of the path of the sheets in the processing machine. These chains 4a, 4b are engaged in the usual manner with chain wheels (not shown) and are driven by one of them engaged with the drive motor (not shown) of the machine. These chains 4a, 4b are integral with the two respective ends of clamp bars 5 which extend transversely to the path of the sheets in the processing machine and therefore parallel to the transverse edges of these sheets. The clamps 5a of the clamp bar 5 are directed towards the rear of the clamp bar with respect to the transport direction F of these sheets and serve to pinch the leading edges of the sheets for transporting them through the processing machine. The lower arms of these clamps 5a are fixed, while their upper arms are integral with a transverse support shaft 7.

La liaison entre les extrémités de la barre de pinces 5 et les chaînes 4a, 4b est obtenue par deux pièces de liaison respectives 11a, 11b qui servent aussi de palier de pivotement aux extrémités respectives de l'arbre de support transversal 7 qui passe encore dans des paliers de soutien (non représentés) répartis le long de la barre de pinces 5. Les bras supérieurs des pinces 5a sont pressés de manière élastique en position de fermeture des pinces 5a par des ressorts de rappel 12.The connection between the ends of the gripper bar 5 and the chains 4a, 4b is obtained by two respective connecting pieces 11a, 11b which also serve as a pivot bearing at the respective ends of the transverse support shaft 7 which still passes through. support bearings (not shown) distributed along the clamp bar 5. The upper arms of the clamps 5a are resiliently pressed in the closed position of the clamps 5a by return springs 12.

La station de réception pleine feuille SR comporte, sur les trajectoires respectives de deux galets 7a, 7b portés par les extrémités de l'arbre de support 7 des pinces 5a de la barre de pinces 5 et à l'extrémité aval de cette station, deux cames d'abaissement 6a, 6b de l'arbre de support 7 de la barre de pinces 5. Cet abaissement de l'arbre de support 7 provoque une traction sur les chaînes 4a, 4b qui permet d'abaisser la partie arrière de la barre de pinces 5 de quelques mm. Outre le guidage des chaînes 4a, 4b par les roues à chaînes (non représentées), des guides fixes 8a, 8b sont disposés du côté interne des trajectoires de ces chaînes 4a, 4b, à la sortie de la station de réception SR, où les trajectoires respectives de ces chaînes 4a, 4b deviennent incurvées.The full sheet receiving station SR comprises, on the respective trajectories of two rollers 7a, 7b carried by the ends of the support shaft 7 of the clamps 5a of the clamp bar 5 and at the downstream end of this station, two lowering cams 6a, 6b of the support shaft 7 of the gripper bar 5. This lowering of the support shaft 7 causes a pull on the chains 4a, 4b which makes it possible to lower the rear part of the bar clamps 5 of a few mm. In addition to guiding the chains 4a, 4b by the chain wheels (not shown), fixed guides 8a, 8b are arranged on the internal side of the trajectories of these chains 4a, 4b, at the output of the receiving station SR, where the respective trajectories of these chains 4a, 4b become curved.

La partie transversale aval du cadre-tiroir 2 porte au moins une, de préférence deux cames inférieures 9a, 9b d'ouverture des pinces 5a de la barre de pinces 5. Ces cames inférieures 9a, 9b se situent respectivement à proximité des extrémités de cette partie transversale aval du cadre-tiroir 2, sur les trajectoires respectives de deux galets d'ouverture 10a, 10b des branches supérieures des pinces 5a. Ces galets d'ouverture 10a, 10b sont montés pivotants sur des axes 16a, 16b parallèles à l'arbre de support 7 des bras supérieurs des pinces 5a de la barre de pinces 5, et sont reliés par un levier 15 à l'arbre de support 7, permettant de le faire tourner autour de son axe longitudinal en entraînant les bras supérieurs des pinces 5a, à l'encontre de la pression des ressorts de rappel 12 et d'écarter ces branches supérieures des branches inférieures, comme illustré en particulier par la figure 2.The downstream transverse portion of the drawer frame 2 carries at least one, preferably two lower cams 9a, 9b for opening the clamps 5a of the clamp bar 5. These lower cams 9a, 9b are respectively close to the ends of this downstream transverse part of the drawer frame 2, on the respective trajectories of two opening rollers 10a, 10b of the upper branches of the clamps 5a. These opening rollers 10a, 10b are pivotally mounted on pins 16a, 16b parallel to the support shaft 7 of the upper arms of the clamps 5a of the clamp bar 5, and are connected by a lever 15 to the support shaft 7, allowing it to rotate about its longitudinal axis by driving the upper arms of the clamps 5a, against the pressure of the return springs 12 and to discard these branches upper branches, as illustrated in particular in Figure 2.

Il faut remarquer que le niveau des cames supérieures 6a, 6b se situe pour que les extrémités arrières des pinces 5a passent au-dessous des bords supérieurs des butées de rangement avant 3 du cadre-tiroir 2 de réception pleine feuille, comme illustré en particulier par la figure 2. Le niveau des cames inférieures 9a, 9b est aussi choisi pour que l'abaissement de la partie arrière de la barre de pinces 5 presse les galets d'ouverture 10a, 10b des pinces 5a contre les cames inférieures 9a, 9b, provoquant l'ouverture des pinces 5a au moment de leur passage entre les butées de rangement avant 3. De ce fait, les feuilles tenues par les pinces 5a sont retenues par les butées de rangement 3, qui sont statiques, contrairement aux éjecteurs qui ont un mouvement opposé à celui des feuilles. Par conséquent, grâce au procédé de réception pleine feuille selon l'invention, l'abaissement de la partie arrière de la barre de pinces 5 permet d'ouvrir les pinces, ce qui en soi, se fait sur toutes les barres de pinces, mais l'originalité vient du fait que cette ouverture est obtenue au moment où les pinces 5a de la barre de pinces 5 sont en même temps abaissées et passent entre les butées de rangement avant 3 du cadre-tiroir 2 de rangement, permettant à ces butées de rangement 3 de remplir de plus le rôle d'éjecteur statique des feuilles pleines.It should be noted that the level of the upper cams 6a, 6b is located so that the rear ends of the clamps 5a pass below the upper edges of the front storage stops 3 of the full-leaf receiving frame 2, as illustrated in particular by FIG. 2. The level of the lower cams 9a, 9b is also chosen so that the lowering of the rear part of the gripper bar 5 presses the opening rollers 10a, 10b of the grippers 5a against the lower cams 9a, 9b, causing the clamps 5a to open when they pass between the front storage stops 3. As a result, the sheets held by the clamps 5a are held by the storage stops 3, which are static, unlike the ejectors which have a movement opposite that of leaves. Therefore, thanks to the full sheet receiving method according to the invention, the lowering of the rear portion of the clamp bar 5 opens the clamps, which in itself is done on all the clamp bars, but the originality comes from the fact that this opening is obtained at the moment when the clamps 5a of the clamp bar 5 are at the same time lowered and pass between the storage stops before 3 of the storage frame-drawer 2, allowing these stops of Stowage 3 to further fill the role of static ejector of the full sheets.

Ce mode d'éjection permet de réduire sensiblement l'onde de déformation de la feuille, résultant de son arrêt, du fait que seule la feuille se déplace, alors que les butées 3 sont fixes, contrairement à l'éjecteur classique qui se déplace en sens contraire de la feuille.This ejection mode substantially reduces the deformation wave of the sheet, resulting from its shutdown, because only the sheet moves, while the stops 3 are fixed, unlike the conventional ejector that moves in the opposite direction of the sheet.

Lorsque la station doit réceptionner les poses découpées dans la feuille sous forme de poses séparées, il faut enlever le cadre-tiroir 2 en le sortant latéralement de la machine et le remplacer par l'outil inférieur de séparation de poses. Etant donné que les cames inférieures 9a, 9b d'ouverture des pinces 5a des barres de pinces 5 sont solidaires du cadre-tiroir 2, l'enlèvement de celui-ci provoque aussi celui de ces cames 9a, 9b.When the station is to receive the blanks cut from the sheet as separate blanks, the drawer frame 2 must be removed from the side of the machine and replaced by the lower blanking tool. Since the lower cams 9a, 9b of the opening of the clamps 5a of the clamp bars 5 are integral with the frame-drawer 2, the removal thereof also causes that of these cams 9a, 9b.

Par contre, les cames supérieurs 6a, 6b d'abaissement de l'arbre support 7 des pinces 5a de la barre de pinces 5 doivent être escamotées pour empêcher une collision des barres de pinces 5 avec l'outil inférieur de séparation de poses. A cet effet, chaque came supérieure 6a, 6b est reliée au bâti 1 par un axe de pivotement 13. Deux taraudages (non représentés) ménagés dans le bâti et situés sur un arc de cercle centré sur l'axe de pivotement 13 de chaque came supérieure 6a, 6b sont destinés à recevoir sélectivement une tige filetée 14 commandée par une poignée 14a solidaire de son extrémité externe. Lorsque les tiges filetées respectives sont vissées à l'aide des poignées 14a dans les taraudages respectifs inférieurs du bâti, les cames supérieures 6a, 6b se trouvent dans leurs positions respectives abaissées, correspondant à la réception pleine feuille. Lorsque ces mêmes tiges filetées 14 sont vissées dans les taraudage supérieurs du bâti, les cames 6a, 6b sont dans leurs positions relevées et ne viennent pas en contact avec les barres de pinces 5, correspondant à la réception avec séparation des poses.On the other hand, the upper cams 6a, 6b of lowering the support shaft 7 of the grippers 5a of the gripper bar 5 must be retracted to prevent collision of the gripper bars 5 with the lower parting separation tool. For this purpose, each upper cam 6a, 6b is connected to the frame 1 by a pivot axis 13. Two tappings (not shown) formed in the frame and located on an arc of a circle centered on the pivot axis 13 of each cam upper 6a, 6b are intended to selectively receive a threaded rod 14 controlled by a handle 14a secured to its outer end. When the respective threaded rods are screwed by means of the handles 14a into the respective lower threads of the frame, the upper cams 6a, 6b are in their respective lowered positions, corresponding to the full sheet receiving. When these same threaded rods 14 are screwed into the upper tapping of the frame, the cams 6a, 6b are in their raised positions and do not come into contact with the clamp bars 5, corresponding to the reception with separation of the poses.

Bien que l'on ait décrit ci-dessus, des moyens à commande manuelle de la mise en ou hors service des cames 6a, 6b d'abaissement de la barre de pince, on pourrait utiliser une commande par vérin ou par moteur, par exemple, à la place de la commande manuelle. De même, on pourrait aussi imaginer un autre type de commande manuelle que celui qui a été décrit.Although it has been described above, manually operated means for switching on or off the cams 6a, 6b for lowering the clamp bar, it would be possible to use a control by cylinder or motor, for example, in place of the manual control. Similarly, one could also imagine another type of manual control than that described.

Claims (4)

  1. Method for unblanked sheet delivery in a delivery station of a machine processing plate elements comprising a delivery pull-out frame (2) provided with jogging stops (3) and transverse gripper bars (5), the respective ends of which are fixedly attached to two respective flexible drive elements (4a, 4b) in the shape of endless loops for conveying the sheets in process, characterized in that the front jogging stops (3) of the said delivery pull-out frame (2) are spaced so as to allow the passage between them of the grippers (5a) of the gripper bar (5) and the gripper bar is inclined around a transverse shaft (7), for lowering the level of the said grippers (5a) below the level of the respective upper edges of the said front stops (3), by simultaneously opening the said grippers (5a), in order to separate the said sheet from the said grippers (5a) by bringing its front edge against the said front stops (3).
  2. Station for unblanked sheet delivery of a machine processing plate elements, comprising a delivery pull-out frame (2) provided with jogging stops (3) and transverse gripper bars (5), the respective ends of which are fixedly attached to two respective flexible drive elements (4a, 4b) in the shape of endless loops for conveying the sheets in process, characterized in that it includes at least one first cam (6a, 6b) for lowering the grippers (5a) of the gripper bar (5) below the respective upper edges of the front jogging stops (3) of the delivery frame (2) and at least one second cam (9a, 9b) for opening the said grippers (5a) in their lowered position.
  3. Delivery station according to claim 2, wherein the first and second cams (6a, 6b; 9a, 9b) are mounted removably with respect to the path of the said gripper bars (5) to allow operating according to a blanking method.
  4. Delivery station according to one of claims 2 or 3, wherein the said second cam (9a, 9b) is fixedly attached to the delivery pull-out frame (2), mounted removably in the said station.
EP04405644A 2004-10-15 2004-10-15 Method and device for the reception of a sheet in a machine for the processing of elements in the form of a board Active EP1647376B1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP04405644A EP1647376B1 (en) 2004-10-15 2004-10-15 Method and device for the reception of a sheet in a machine for the processing of elements in the form of a board
ES04405644T ES2298710T3 (en) 2004-10-15 2004-10-15 METHOD AND STATION OF RECEPTION OF A SHEET OF A TRANSFORMING MACHINE OF ELEMENTS IN PLATES.
DE602004011618T DE602004011618T2 (en) 2004-10-15 2004-10-15 Method and device for receiving a sheet in a machine for processing board-shaped material
AT04405644T ATE385215T1 (en) 2004-10-15 2004-10-15 METHOD AND DEVICE FOR RECEIVING A SHEET IN A MACHINE FOR PROCESSING BOARD-SHAPED GOODS
PL04405644T PL1647376T3 (en) 2004-10-15 2004-10-15 Method and device for the reception of a sheet in a machine for the processing of elements in the form of a board
JP2005301870A JP4098801B2 (en) 2004-10-15 2005-10-17 Method and station for receiving raw sheets in a machine for processing plate-like elements

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP04405644A EP1647376B1 (en) 2004-10-15 2004-10-15 Method and device for the reception of a sheet in a machine for the processing of elements in the form of a board

Publications (2)

Publication Number Publication Date
EP1647376A1 EP1647376A1 (en) 2006-04-19
EP1647376B1 true EP1647376B1 (en) 2008-01-30

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP04405644A Active EP1647376B1 (en) 2004-10-15 2004-10-15 Method and device for the reception of a sheet in a machine for the processing of elements in the form of a board

Country Status (6)

Country Link
EP (1) EP1647376B1 (en)
JP (1) JP4098801B2 (en)
AT (1) ATE385215T1 (en)
DE (1) DE602004011618T2 (en)
ES (1) ES2298710T3 (en)
PL (1) PL1647376T3 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104972488A (en) * 2014-04-08 2015-10-14 卢惠乐 Paper cutter
CN105270666A (en) * 2014-07-18 2016-01-27 卢惠乐 Roll paper production system
CN106079557A (en) * 2011-11-23 2016-11-09 海克恩系统有限公司 Hardboard processing system and the transport substrate transportation system through backfin station and method

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI760709B (en) * 2019-04-05 2022-04-11 瑞士商巴柏斯特麥克斯合資公司 Hot foil stamping press
TWI804078B (en) 2020-12-17 2023-06-01 瑞士商巴柏斯特麥克斯合資公司 Sheet processing machine

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE888505C (en) * 1939-02-27 1953-09-03 Bobst & Sohn A G J Crucible press for processing cardboard sheets
FR923047A (en) * 1945-04-24 1947-06-25 Bobst Fils Sa J Device ensuring the centering of conveyor bodies for sheet parts processed by a press
CH681885A5 (en) * 1990-03-24 1993-06-15 Bobst Sa
DE19807587C1 (en) * 1998-02-23 1999-04-29 Manfred Vossen Paper handling machine having grip rods feed-advancing through one level

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106079557A (en) * 2011-11-23 2016-11-09 海克恩系统有限公司 Hardboard processing system and the transport substrate transportation system through backfin station and method
CN104972488A (en) * 2014-04-08 2015-10-14 卢惠乐 Paper cutter
CN104972488B (en) * 2014-04-08 2017-03-22 卢惠乐 Paper cutter
CN105270666A (en) * 2014-07-18 2016-01-27 卢惠乐 Roll paper production system
CN105270666B (en) * 2014-07-18 2018-08-24 卢惠乐 Roll paper production system

Also Published As

Publication number Publication date
ATE385215T1 (en) 2008-02-15
ES2298710T3 (en) 2008-05-16
JP4098801B2 (en) 2008-06-11
JP2006111451A (en) 2006-04-27
DE602004011618D1 (en) 2008-03-20
DE602004011618T2 (en) 2009-04-02
PL1647376T3 (en) 2008-07-31
EP1647376A1 (en) 2006-04-19

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