EP0692348A1 - Movable upper tool for the separation of the blanks from a sheet processed in a press for the production of packaging material - Google Patents

Movable upper tool for the separation of the blanks from a sheet processed in a press for the production of packaging material Download PDF

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Publication number
EP0692348A1
EP0692348A1 EP95110540A EP95110540A EP0692348A1 EP 0692348 A1 EP0692348 A1 EP 0692348A1 EP 95110540 A EP95110540 A EP 95110540A EP 95110540 A EP95110540 A EP 95110540A EP 0692348 A1 EP0692348 A1 EP 0692348A1
Authority
EP
European Patent Office
Prior art keywords
punches
upper tool
tool
openings
separation
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
EP95110540A
Other languages
German (de)
French (fr)
Other versions
EP0692348B1 (en
Inventor
Jean-Bernard De Dompierre
Ulrich Schwager
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Bobst Mex SA
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Bobst SA
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Filing date
Publication date
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Publication of EP0692348A1 publication Critical patent/EP0692348A1/en
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Publication of EP0692348B1 publication Critical patent/EP0692348B1/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • B26D7/18—Means for removing cut-out material or waste
    • 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
    • B26D7/18—Means for removing cut-out material or waste
    • B26D7/1818—Means for removing cut-out material or waste by pushing out
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T225/00—Severing by tearing or breaking
    • Y10T225/30—Breaking or tearing apparatus
    • Y10T225/329—Plural breakers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T225/00—Severing by tearing or breaking
    • Y10T225/30—Breaking or tearing apparatus
    • Y10T225/371—Movable breaking tool
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/869—Means to drive or to guide tool
    • Y10T83/8821—With simple rectilinear reciprocating motion only
    • Y10T83/8828—Plural tools with same drive means
    • Y10T83/8831—Plural distinct cutting edges on same support
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/929—Tool or tool with support
    • Y10T83/9457—Joint or connection
    • Y10T83/9473—For rectilinearly reciprocating tool
    • Y10T83/9483—Adjustable

Abstract

The tool comprises a base plate (3) having openings (5), from the lower face (24) of which are fixed punches (4,4a). The openings are located along two orthogonal axes, one of which is inclined relative to one of the tool base plate edges at an angle between fifteen and twenty degrees. The tool works with a lower tool separating the cut-out sheets (2). The punches deform under the pressure engendered by downward displacement of the upper tool and meet a solid separation bar (9). One of the lateral faces of the punch section is tangent to one of the openings so that the pitch between the punches provides an identical total pressure from them, on the cut-out to be separated, near one lower tool separation bar, whatever the position occupied by the separation bars. The non-separated sheet has a front nipped piece (22) gripped by pincers (23) which transport this sheet to the cut-out separation and reception station. <IMAGE>

Description

La présente invention à pour objet un outil supérieur mobile pour la séparation des poses d'une feuille travaillée par une presse de fabrication d'emballages, notamment par une presse de fabrication d'emballages en carton ondulé.The present invention relates to a mobile upper tool for the separation of the poses of a sheet worked by a packaging manufacturing press, in particular by a packaging manufacturing press for corrugated cardboard.

Une presse de fabrication d'emballages en carton ondulé comprend généralement plusieurs stations successives qui sont dans l'ordre :

  • Une station de marge,
  • Une station de découpage,
  • Une station d'éjection des déchets et,
  • Une station de séparation et de réception des poses.
A press for manufacturing corrugated cardboard packaging generally comprises several successive stations which are in order:
  • A margin station,
  • A cutting station,
  • A waste ejection station and,
  • A station for separation and reception of poses.

Dans une telle machine, les feuilles de carton ondulé sont introduites, depuis la station de marge, dans les pinces d'un dispositif de transport constitué par des barres de pinces montées, par leurs extrémités, sur deux trains de chaînes disposés, en regard l'un de l'autre, dans chacun des bâtis latéraux de la machine. Les feuilles de carton ondulé, maintenues dans les pinces des barres de pinces, seront ensuite transportées séquentiellement au travers de chacunes des stations mentionnées ci-avant. Ainsi, à un premier arrêt, les feuilles seront découpées par la station de découpage pour constituer des poses ou découpes reliées entre elles par des points d'attache puis, à un second arrêt, les déchets situés entre les poses ou dans celles-ci seront éliminés de la feuille et dans un troisième arrêt, les poses seront séparées l'une de l'autre et empilées dans la station de séparation et de réception.In such a machine, the sheets of corrugated cardboard are introduced, from the margin station, into the clamps of a transport device constituted by clamp bars mounted, at their ends, on two trains of chains arranged, opposite the 'from each other, in each of the side frames of the machine. The sheets of corrugated cardboard, held in the clips of the clip bars, will then be transported sequentially through each of the stations mentioned above. Thus, at a first stop, the sheets will be cut by the cutting station to form poses or cutouts linked together by attachment points, then, at a second stop, the waste located between the poses or in them will be eliminated from the sheet and in a third stop, the poses will be separated from each other and stacked in the separation and reception station.

La feuille de carton ondulé ayant été débarrassée de ses déchets dans la station d'éjection sera ensuite amenée dans la station de séparation et de réception des poses où celles-ci seront séparées l'une de l'autre en utilisant un même mouvement que celui utilisé dans la station d'éjection des déchets.The sheet of corrugated cardboard having been freed of its waste in the ejection station will then be brought to the separation and reception station of the poses where they will be separated from each other using the same movement as that used in the waste ejection station.

Il est connu d'utiliser, dans une station de séparation des poses, un outil supérieur mobile et un outil inférieur fixe. L'outil supérieur est constitué par un ensemble de poinçons, et l'outil inférieur par une matrice à ouvertures, les poinçons supérieurs mobiles forçant les poses au travers des ouvertures de la matrice inférieure en provoquant la rupture des différents points d'attache qui reliaient chacune des poses entre elles. Les outils de séparation doivent donc être adaptés à la forme et à la disposition des poses de chaque nouvelle série de feuilles à travailler. En général, les poinçons sont montés, en repérage par rapport aux lignes de découpage de la presse, sur une plaque de base fixée à un cadre porte-outil mobile supérieur de la station de séparation des poses. Au-dessous et en regard de chaque poinçon, se trouve une ouverture ou maille correspondante de la matrice inférieure constituée de barrettes. Les barrettes sont arrangées de façon à se chevaucher pour former une grille ou matrice dont les mailles ont approximativement les dimensions des poses à séparer.It is known to use, in a station separation station, a mobile upper tool and a fixed lower tool. The upper tool is constituted by a set of punches, and the lower tool by a matrix with openings, the movable upper punches forcing the poses through the openings in the lower matrix by causing the rupture of the various attachment points which connected each of the poses between them. The separation tools must therefore be adapted to the shape and arrangement of the poses of each new series of sheets to be worked. In general, the punches are mounted, in registration with respect to the cutting lines of the press, on a base plate fixed to an upper mobile tool-carrying frame of the station separation station. Below and opposite each punch, there is a corresponding opening or mesh of the lower matrix made up of bars. The bars are arranged so as to overlap to form a grid or matrix whose meshes have approximately the dimensions of the poses to be separated.

Pour éviter qu'il soit nécessaire de fabriquer de nouveaux outils de séparation des poses pour chaque nouvelle série de feuilles, il a été proposé, dans le brevet CH-A-617886, de monter les poinçons horizontalement déplaçables le long de barres fixées sur un cadre verticalement mobile, chaque poinçon se présentant sous la forme d'un taquet relié à son voisin par des organes s'encastrant l'un dans l'autre. La matrice inférieure fixe est composée de barres croisées déplaçables de manière à former une grille dont les mailles sont de dimensions réglables.To avoid the need to manufacture new tools for separating the poses for each new series of sheets, it has been proposed, in patent CH-A-617886, to mount the punches horizontally displaceable along fixed bars on a vertically movable frame, each punch being in the form of a cleat connected to its neighbor by members fitting into one another. The fixed lower matrix is composed of cross bars which can be moved so as to form a grid, the meshes of which are of adjustable dimensions.

Une autre manière de réaliser l'outil supérieur mobile consiste à utiliser une plaque munie de douilles traversantes dans lesquelles s'engagent des broches auto-bloquantes servant à fixer des poinçons destinés à pousser les poses à séparer au travers des ouvertures correspondantes d'un outil inférieur. Cette solution est décrite en détail dans le brevet CH-681874.Another way of making the mobile upper tool consists in using a plate provided with through bushings in which engage self-locking pins used to fix punches intended to push the poses to be separated through corresponding openings of a tool. inferior. This solution is described in detail in patent CH-681874.

Une autre façon de réaliser l'outil supérieur mobile consiste à utiliser une plaque, percée d'un grand nombre d'ouvertures, sur la face inférieure de laquelle sont montés des poinçons rigides de séparation des poses, ces poinçons étant fixés à la plaque par des bandes auto-adhérentes comme cela ressort de la description du brevet CH-682651.Another way of making the movable upper tool consists in using a plate, pierced with a large number of openings, on the underside of which are mounted rigid punches for separating the poses, these punches being fixed to the plate by self-adhesive strips as shown in the description of patent CH-682651.

Ainsi que cela est mentionné dans les brevets que nous venons de citer, il est nécessaire que les outils supérieurs mobiles soient construits de manière à autoriser, au travers d'eux, le passage de l'air provenant du déplacement vertical de l'outil, par exemple en réalisant dans la plaque qui les constitue de nombreuses ouvertures.As mentioned in the patents which we have just cited, it is necessary that the mobile upper tools are constructed so as to allow, through them, the passage of air from the vertical displacement of the tool, for example by making numerous openings in the plate which constitutes them.

Cette manière de procéder nécessite bien évidemment la construction d'un nouvel outil spécifique à chaque configuration des poses sur la feuille et indépendamment du prix et du temps consacré à la réalisation de ce nouvel outil il faudra prévoir une surface de stockage importante pour les différents outils utilisés car les travaux réalisés sur la machine sont souvent répétitifs rendant par là une réutilisation des outils déjà fabriqués.This way of proceeding obviously requires the construction of a new tool specific to each configuration of the poses on the sheet and regardless of the price and the time spent on the realization of this new tool, it will be necessary to provide a large storage area for the different tools. used because the work carried out on the machine are often repetitive thereby making reuse of tools already manufactured.

Les outils de séparation des poses que nous venons de décrire présentent donc tous l'inconvénient de nécessiter une préparation relativement longue dépendant de chaque travail différent à réaliser par la machine. Ces opérations diminuent le rendement de la machine lorsqu'il est nécessaire de traiter de nombreux travaux différents dans la même journée de travail en augmentant les temps morts pendant lesquels la machine n'est pas opérationnelle. Le problème posé consiste donc à augmenter la production effective de la machine de fabrication d'emballages.The tools for separating the poses that we have just described therefore all have the drawback of requiring a relatively long preparation depending on each different job to be performed by the machine. These operations decrease the efficiency of the machine when it is necessary to process many different jobs in the same working day by increasing the idle times during which the machine is not operational. The problem therefore consists in increasing the effective production of the packaging manufacturing machine.

Le but de la présente invention vise à supprimer les inconvénients précités inhérents aux outils de séparation des poses existants.The aim of the present invention is to eliminate the aforementioned drawbacks inherent in the tools for separating existing poses.

Ce but est atteint au moyen d'un outil supérieur de séparation des poses conforme à ce qu'énonce la revendication 1.This object is achieved by means of an upper blanking tool in accordance with claim 1.

Un exemple de réalisation d'un outil supérieur de séparation des poses est décrit ci-après, à titre d'exemple, en faisant référence aux dessins annexés dans lesquels :

  • La figure 1 est une vue en plan d'une première version d'un outil supérieur,
  • La figure 2 est une vue en plan d'une seconde version d'un outil supérieur,
  • La figure 3 est une vue en plan d'un outil inférieur de séparation de poses,
  • La figure 4 est une vue en coupe d'un poinçon en phase de séparation d'une pose et,
  • La figure 5 est une vue en coupe selon V - V de la figure 2.
An exemplary embodiment of an upper blanking tool is described below, by way of example, with reference to the accompanying drawings in which:
  • FIG. 1 is a plan view of a first version of an upper tool,
  • FIG. 2 is a plan view of a second version of an upper tool,
  • FIG. 3 is a plan view of a lower blanking tool,
  • FIG. 4 is a sectional view of a punch in the phase of separation of a pose and,
  • FIG. 5 is a sectional view along V - V of FIG. 2.

La figure 1 est une vue en plan d'une première version d'un outil supérieur 1 de séparation de poses ou découpes 2 de boîtes, représentées en traits mixtes sur cette figure. L'outil supérieur 1 est constitué par une plaque de base 3, généralement en bois ou en matière synthétique et par des poinçons 4 de forme parallélépipédique collés contre la face inférieure de la plaque de base 3. Cette plaque de base comporte des ouvertures 5 de forme circulaire, dans la présente exécution. Ces ouvertures 5 traversent la plaque de base 3 de part en part et ont pour but de laisser passer l'air provenant du déplacement vertical alternatif de l'outil supérieur 1. Ces ouvertures pourraient être de forme géométrique quelconque et se présenter, par exemple sous la forme d'ouvertures carrées. Le choix de la forme circulaire a été dicté par des considérations de facilité d'usinage.FIG. 1 is a plan view of a first version of an upper blanking tool 1 or cutouts 2 of boxes, shown in phantom in this figure. The upper tool 1 is constituted by a base plate 3, generally made of wood or synthetic material and by punches 4 of parallelepiped shape glued against the underside of the base plate 3. This base plate has openings 5 of circular shape, in this embodiment. These openings 5 pass through the base plate 3 from side to side and are intended to allow air to pass from the alternating vertical displacement of the upper tool 1. These openings could be of any geometric shape and be, for example under the shape of square openings. The choice of circular shape was dictated by considerations of ease of machining.

Les ouvertures 5 sont disposées sur la plaque de base 3 suivant deux axes orthogonaux 6 et 7, l'axe 6 étant constitué par une droite inclinée faisant un angle 8 compris entre quinze et vingt degrés par rapport à l'un des bords de la plaque de base 3. Ici, le bord choisi étant le bord situé au haut de la figure et pouvant être assimilé au bord avant de la plaque de base 3. La valeur exacte de cet angle 8 est déterminée par la dimension des ouvertures 5 et par la dimension des poinçons 4 ainsi que par le pas entre les poinçons 4 de façon à ce qu'une pression régulière des poinçons soit obtenue, sur la pose ou découpe 2 à séparer, au voisinage des barres de séparation longitudinales et transversales 9, 9a de l'outil inférieur 10 (voir figure 3). Les poinçons 4, présentent une section carrée et sont de préférence réalisés en caoutchouc mousse d'une densité comprise entre trente et cent kilogrammes par mètre cube. Dans le présent exemple, la densité choisie, lors d'essais pratiques, est de quatre-vingt kilogrammes par mètre cube. Le choix de la densité du caoutchouc mousse est fonction des caractéristiques du carton ondulé travaillé. Dans l'exemple illustré ici, les poinçons 4 sont disposés sur la plaque de base 3 de telle façon que chacune des quatre faces 11 du carré de leur section soit tangente aux ouvertures 5. Ainsi, de par cette disposition des différents poinçons 4 sur la plaque de base 3, la pression totale de ceux-ci au voisinage des barres de séparation longitudinales et transversales 9, 9a de l'outil inférieur 10 sera régulière quelque soit la position des barres de séparation 9, 9a. Dans l'exécution représentée sur la figure 1, certains des poinçons 4 se trouvant en regard des barres de séparation 9, 9a de l'outil inférieur 10 seront passablement déformés ce qui peut perturber le bon fonctionnement de l'outil supérieur 1. Pour remédier à cet inconvénient, il suffit d'entailler, par exemple au moyen d'un couteau, les poinçons 4 se trouvant en regard de chacune des barres de séparation longitudinales et transversales 9, 9a de l'outil inférieur 10.The openings 5 are arranged on the base plate 3 along two orthogonal axes 6 and 7, the axis 6 being constituted by an inclined straight line making an angle 8 of between fifteen and twenty degrees relative to one of the edges of the plate base 3. Here, the edge chosen being the edge located at the top of the figure and which can be assimilated to the front edge of the base plate 3. The exact value of this angle 8 is determined by the size of the openings 5 and by the dimension of the punches 4 as well as by the pitch between the punches 4 so that a regular pressure of the punches is obtained, on the laying or cutting 2 to be separated, in the vicinity of the longitudinal and transverse separation bars 9, 9a of l 'lower tool 10 (see Figure 3). The punches 4 have a square section and are preferably made of foam rubber with a density of between thirty and one hundred kilograms per cubic meter. In the present example, the density chosen, during practical tests, is eighty kilograms per meter cube. The choice of density of the foam rubber depends on the characteristics of the corrugated board being worked. In the example illustrated here, the punches 4 are arranged on the base plate 3 so that each of the four faces 11 of the square of their section is tangent to the openings 5. Thus, by this arrangement of the different punches 4 on the base plate 3, the total pressure thereof in the vicinity of the longitudinal and transverse separation bars 9, 9a of the lower tool 10 will be regular whatever the position of the separation bars 9, 9a. In the embodiment shown in Figure 1, some of the punches 4 located opposite the separation bars 9, 9a of the lower tool 10 will be somewhat deformed which can disrupt the proper functioning of the upper tool 1. To remedy to this drawback, it suffices to cut, for example by means of a knife, the punches 4 located opposite each of the longitudinal and transverse separation bars 9, 9a of the lower tool 10.

La figure 2 est une vue en plan d'une seconde version d'un outil supérieur 1 présentant une configuration des poinçons 4 similaire à celle représentée par la figure 1. Cependant, en raison du fait que la barre de séparation longitudinale 9 située dans l'axe de l'outil supérieur 1 occupe toujours une même position, on peut éviter d'avoir à entailler les poinçons 4 se trouvant au voisinage de cette barre de séparation longitudinale 9. Pour ce faire, on divise l'outil supérieur 1 en deux zones 12 et 13, comportant des poinçons 4 disposés de la même façon que sur l'outil supérieur 1 de la figure 1, les deux zones 12 et 13 étant séparées par une série de poinçons 4a disposés tangentiellement et en épi, par certaines de leur faces, à la circonférence des ouvertures 14, circulaires, alignées sur l'axe médian de l'outil supérieur 1. Cette disposition, tout en respectant la condition de pression régulière sur les poses 2 au voisinage de la barre de séparation longitudinale 9, évitera l'une des opérations d'entaillage des poinçons 4. On pourrait aussi imaginer d'utiliser une telle disposition des poinçons 4a au voisinage de la barre de séparation transversale 9a centrale, pour autant que l'on centre toujours la ligne de séparation transversale des poses 2 sur cette barre de séparation transversale 9a centrale.Figure 2 is a plan view of a second version of an upper tool 1 having a configuration of the punches 4 similar to that shown in Figure 1. However, due to the fact that the longitudinal separation bar 9 located in the axis of the upper tool 1 always occupies the same position, one can avoid having to cut the punches 4 located in the vicinity of this longitudinal separation bar 9. To do this, the upper tool 1 is divided into two zones 12 and 13, comprising punches 4 arranged in the same way as on the upper tool 1 of FIG. 1, the two zones 12 and 13 being separated by a series of punches 4a arranged tangentially and at an angle, by some of their faces, at the circumference of the circular openings 14, aligned on the median axis of the upper tool 1. This arrangement, while respecting the condition of regular pressure on the poses 2 in the vicinity of the longitudinal separation bar 9, one of the punches notching operations will be avoided. One could also imagine using such an arrangement of the punches 4a in the vicinity of the central transverse dividing bar 9a, provided that the transverse dividing line is always centered poses 2 on this central transverse separation bar 9a.

La figure 3 est une vue en plan d'un outil inférieur 10 de séparation de poses 2. Quatre poses 2 sont représentées sur cette figure. Ces poses 2 sont reliées entre elles par des points d'attache 19.FIG. 3 is a plan view of a lower pose separation tool 10. Four poses 2 are shown in this figure. These poses 2 are interconnected by attachment points 19.

L'outil inférieur 10 se compose d'un cadre comprenant deux longerons transversaux 15 et 16 et deux traverses longitudinales 17 et 18. Les barres de séparation longitudinales 9 sont placées entre les longerons transversaux 15 et 16 auxquels elles sont fixées par l'intermédiaire d'étriers 20 agencés de façon à pouvoir être déplacés et bloqués en position le long des longerons transversaux 15 et 16. Les barres de séparation transversales 9a sont quant à elles montées entre les traverses longitudinales 17 et 18 auxquelles elles sont fixées par l'intermédiaire d'étriers 21, semblables aux étriers 20, agencés de façon à pouvoir être déplacés et bloqués en position le long des traverses longitudinales 17 et 18. L'outil supérieur 1, placé au-dessus de l'outil inférieur 10, poussera, lors de sa descente, les différentes poses 2 au travers des mailles formées par les barres de séparation longitudinales 9 et transversales 9a. Les points d'attache 19 seront alors rompus et les poses 2 seront de ce fait séparées l'une de l'autre.The lower tool 10 consists of a frame comprising two transverse beams 15 and 16 and two longitudinal cross members 17 and 18. The longitudinal separating bars 9 are placed between the transverse beams 15 and 16 to which they are fixed by means of 'stirrups 20 arranged so that they can be moved and locked in position along the transverse beams 15 and 16. The transverse separation bars 9a are in turn mounted between the longitudinal crosspieces 17 and 18 to which they are fixed by means of stirrups 21, similar to stirrups 20, arranged so that they can be moved and locked in position along the longitudinal crosspieces 17 and 18. The upper tool 1, placed above the lower tool 10, will push, when its descent, the different poses 2 through the meshes formed by the longitudinal 9 and transverse separation bars 9a. The attachment points 19 will then be broken and the poses 2 will therefore be separated from each other.

La figure 4 est une vue en coupe d'une série de poinçons 4 en phase de séparation d'une pose 2. Dans cette figure, c'est l'outil 1 de la figure 1 qui est représenté. Ainsi que le montre la figure 4, on voit que les poinçons 4 se déforment sous l'effet de la pression engendrée par le déplacement vers le bas de l'outil supérieur 1. Les poinçons 4 étant réalisés en une matière déformable, on constate que même si ceux-ci rencontrent un objet solide, tel qu'une barre de séparation 9, la séparation s'effectuera à satisfaction. La feuille non séparée 21, représentée en traits mixtes, possède une partie avant appelée prise de pince 22, serrée par les pinces 23, destinée à permettre le transport de cette feuille non séparée 21 jusqu'à la station de séparation et de réception des poses 2. Cette prise de pince 22 sera bien entendu enlevée par la suite lors de la prochaine avance de la machine.Figure 4 is a sectional view of a series of punches 4 in the separation phase of a pose 2. In this figure, it is the tool 1 of Figure 1 which is shown. As shown in Figure 4, we see that the punches 4 are deformed under the effect of the pressure generated by the downward movement of the upper tool 1. The punches 4 being made of a deformable material, we see that even if they meet a solid object, such as a separation bar 9, the separation will be carried out to satisfaction. The non-separated sheet 21, shown in phantom, has a front part called the gripper socket 22, clamped by the clamps 23, intended to allow the transport of this non-separated sheet 21 to the separation and reception station 2. This gripper socket 22 will of course be removed later on the next advance of the machine.

La figure 5 est une vue en coupe selon V - V de la figure 2 représentant la manière dont chacun des poinçons 4a, respectivement 4, sont fixés contre la face inférieure 24 de la plaque de base 3 de l'outil supérieur 1. En règle générale, cette fixation des poinçons 4, 4a est réalisée par collage. Mais il serait imaginable d'utiliser un autre mode de fixation permanent. Dans le présent exemple, les poinçons 4, 4a sont de forme prismatique de section carrée mais on pourrait très bien choisir une section différente telle qu'une section polygonale ou circulaire, cela en fonction des résultats pratiques obtenus par des essais en production.Figure 5 is a sectional view along V - V of Figure 2 showing how each of the punches 4a, respectively 4, are fixed against the underside 24 of the base plate 3 of the upper tool 1. As a rule generally, this fixing of the punches 4, 4a is carried out by gluing. But it would be conceivable to use another method of permanent fixation. In the present example, the punches 4, 4a are of prismatic shape with a square section but we could very well choose a different section such as a polygonal or circular section, this depending on the practical results obtained by production tests.

Ainsi que cela ressort de cette description, l'avantage de l'utilisation d'un outil supérieur 1, tel que celui proposé par la présente invention, réside dans le fait qu'avec un seul et même outil il est possible de séparer des poses de dimensions différentes sans qu'il soit nécessaire de procéder à des réglages longs et fastidieux comme cela était le cas avec des outils de séparation conventionnels utilisés jusqu'à ce jour. Par là, le temps de mise en route d'un nouveau travail s'en trouve considérablement réduit et la capacité de production de la machine de fabrication d'emballages en est augmentée d'autant.As is apparent from this description, the advantage of using an upper tool 1, such as that proposed by the present invention, resides in the fact that with a single and same tool it it is possible to separate poses of different dimensions without the need for long and tedious adjustments as was the case with conventional separation tools used to date. In this way, the start-up time for a new job is considerably reduced and the production capacity of the packaging manufacturing machine is increased accordingly.

Claims (5)

Outil supérieur mobile pour la séparation des poses d'une feuille travaillée par une presse de fabrication d'emballages, notamment par une presse de fabrication d'emballages en carton ondulé, comprenant une plaque de base (3), présentant des ouvertures (5) et sur la face inférieure (24) de laquelle sont fixés des poinçons (4, 4a), ledit outil coopérant avec un outil inférieur (10) de séparation des poses (2), caractérisé en ce que les ouvertures (5) sont disposées suivant deux axes orthogonaux (6, 7), l'un de ces axes orthogonaux (6, 7) étant constitué par une droite inclinée par rapport à l'un des bords de la plaque de base (3) de l'outil supérieur mobile (1) et en ce qu'au moins l'une des faces (11) latérales de la section des poinçons (4, 4a) soit tangente par rapport à l'une des ouvertures (5) de façon à ce que le pas entre les poinçons (4, 4a) détermine une pression totale identique de ceux-ci, sur la pose (2) à séparer, au voisinage d'une barre de séparation (9, 9a) de l'outil inférieur (10) de séparation des poses (2) quelle que soit la position occupée par les barres de séparation (9, 9a) de l'outil inférieur (10).Movable upper tool for separating the poses of a sheet worked by a packaging manufacturing press, in particular by a corrugated packaging manufacturing press, comprising a base plate (3), having openings (5) and on the lower face (24) of which are fixed punches (4, 4a), said tool cooperating with a lower tool (10) for separating the blanks (2), characterized in that the openings (5) are arranged in accordance two orthogonal axes (6, 7), one of these orthogonal axes (6, 7) being constituted by a straight line inclined with respect to one of the edges of the base plate (3) of the movable upper tool ( 1) and in that at least one of the lateral faces (11) of the section of the punches (4, 4a) is tangent with respect to one of the openings (5) so that the pitch between the punches (4, 4a) determines an identical total pressure of these, on the pose (2) to be separated, in the vicinity of a sep bar aration (9, 9a) of the lower tool (10) for separating the poses (2) whatever the position occupied by the separation bars (9, 9a) of the lower tool (10). Outil supérieur mobile selon la revendication 1, caractérisé en ce qu'il est séparé en deux zones (12, 13) comportant des ouvertures (5) disposées suivant deux axes orthogonaux (6, 7), l'un de ces axes orthogonaux (6, 7) étant constitué par une droite inclinée par rapport à l'un des bords de la plaque de base (3) de l'outil supérieur mobile (1), au moins l'une des faces (11) latérales de la section des poinçons (4) étant tangente par rapport à l'une des ouvertures (5) et en ce que les deux zones (12, 13) sont séparées par une zone comportant des poinçons (4a) disposés tangentiellement et en épi par rapport à des ouvertures (14) alignées sur l'axe médian de l'outil supérieur mobile (1).Movable upper tool according to claim 1, characterized in that it is separated into two zones (12, 13) comprising openings (5) arranged along two orthogonal axes (6, 7), one of these orthogonal axes (6 , 7) being constituted by a straight line inclined with respect to one of the edges of the base plate (3) of the mobile upper tool (1), at least one of the lateral faces (11) of the section of the punches (4) being tangent to one of the openings (5) and in that the two zones (12, 13) are separated by an zone comprising punches (4a) arranged tangentially and at an angle relative to openings (14) aligned on the median axis of the mobile upper tool (1). Outil supérieur mobile selon la revendication 1, caractérisé en ce que l'inclinaison de la droite constituant l'axe orthogonal (6) présente un angle (8) compris entre quinze et vingt degrés par rapport à l'un des bords de la plaque de base (3) de l'outil supérieur mobile (1).Movable upper tool according to claim 1, characterized in that the inclination of the straight line constituting the orthogonal axis (6) has an angle (8) of between fifteen and twenty degrees relative to one of the edges of the plate base (3) of the mobile upper tool (1). Outil supérieur mobile selon la revendication 1, caractérisé en ce que les poinçons (4, 4a) sont de forme parallélépipédique.Movable upper tool according to claim 1, characterized in that the punches (4, 4a) are of parallelepiped shape. Outil supérieur mobile selon la revendication 4, caractérisé en ce que les poinçons (4, 4a) sont en caoutchouc mousse d'une densité comprise entre trente et cent kilogrammes par mètre cube.Movable upper tool according to claim 4, characterized in that the punches (4, 4a) are made of foam rubber with a density of between thirty and one hundred kilograms per cubic meter.
EP95110540A 1994-07-14 1995-07-06 Movable upper tool for the separation of the blanks from a sheet processed in a press for the production of packaging material Expired - Lifetime EP0692348B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH2248/94 1994-07-14
CH02248/94A CH690027A5 (en) 1994-07-14 1994-07-14 movable upper tool for the separation of blanks from a sheet worked with a press for manufacturing packages.

Publications (2)

Publication Number Publication Date
EP0692348A1 true EP0692348A1 (en) 1996-01-17
EP0692348B1 EP0692348B1 (en) 1999-03-17

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ID=4229337

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EP95110540A Expired - Lifetime EP0692348B1 (en) 1994-07-14 1995-07-06 Movable upper tool for the separation of the blanks from a sheet processed in a press for the production of packaging material

Country Status (14)

Country Link
US (1) US6325263B1 (en)
EP (1) EP0692348B1 (en)
JP (1) JP3159892B2 (en)
KR (1) KR0174643B1 (en)
CN (1) CN1069861C (en)
AT (1) ATE177671T1 (en)
AU (1) AU690272B2 (en)
BR (1) BR9503300A (en)
CA (1) CA2153860C (en)
CH (1) CH690027A5 (en)
DE (1) DE69508314T2 (en)
DK (1) DK0692348T3 (en)
ES (1) ES2130474T3 (en)
TW (1) TW283679B (en)

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WO1997042010A1 (en) * 1996-05-03 1997-11-13 Kara Juergen Device for stripping of parts when producing blanks from a sheet
WO1998023418A1 (en) * 1996-11-26 1998-06-04 Rowapack Gmbh Verpackungsdesign Und Stanztechnik Device and procedure to break out and remove residual stampings from panels or sheet material, particularly for use in automatic flat-bed punching and/or stamping machines.

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US6668695B2 (en) * 1997-03-27 2003-12-30 Daniel L. Poole Clamping system
CH693787A5 (en) * 1999-10-26 2004-02-13 Bobst Sa A process for preparing a shaping tools system, setting table for implementing this method and set of elements to prepare a higher form ejection.
CH694086A5 (en) * 2000-05-16 2004-07-15 Bobst Sa forming press.
DE60204002T2 (en) * 2001-03-08 2006-03-02 Jordan, David Hedley, Mapperley EXTRACTION TOOL OF PLASTIC FOAM
US20020175233A1 (en) * 2001-05-25 2002-11-28 Matt Friedlander Mobile tire cruncher and method thereof
CH695444A5 (en) * 2002-03-28 2006-05-31 Bobst Sa Body support, attachment and building plan tool used in station ejection waste of press cutting.
DE10222920A1 (en) * 2002-05-24 2003-12-04 Arnold Friebel Gmbh Removal device for stamping residue has table surface with individual work areas, rotating grip to move material over table and reciprocating stamp above table surface
KR100934462B1 (en) * 2007-07-04 2009-12-30 주식회사 엘지화학 Foundation frame of high foundation efficiency
KR100948969B1 (en) * 2007-07-16 2010-03-23 주식회사 엘지화학 Process for Preparing Rectangular Pieces at High Cutting Efficiency
KR100996960B1 (en) * 2007-09-08 2010-11-26 주식회사 엘지화학 Cutting Frame of Low Cutting Loss Ratio
US20100192742A1 (en) * 2009-01-30 2010-08-05 Michigan Lasercut Stripping apparatus
PL2937190T3 (en) 2014-04-25 2018-01-31 Mayr Melnhof Karton Ag Blank separation device with a pick up device and method for fixing at least one blank separation tool
CN108516177A (en) * 2018-04-13 2018-09-11 山东太辉包装有限公司 A kind of Packaging Box environmental protection compression-resistant structure and its processing method

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US1981974A (en) * 1931-07-20 1934-11-27 Vernimb August Automatic stripping machine for folding box work
US2413999A (en) * 1944-06-22 1947-01-07 Box Blank Corp Stripping machine
GB606747A (en) * 1946-01-17 1948-08-19 William Frank Golding Improvements in punching and cutting machines
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WO1997042010A1 (en) * 1996-05-03 1997-11-13 Kara Juergen Device for stripping of parts when producing blanks from a sheet
WO1998023418A1 (en) * 1996-11-26 1998-06-04 Rowapack Gmbh Verpackungsdesign Und Stanztechnik Device and procedure to break out and remove residual stampings from panels or sheet material, particularly for use in automatic flat-bed punching and/or stamping machines.

Also Published As

Publication number Publication date
KR960004201A (en) 1996-02-23
CN1069861C (en) 2001-08-22
CH690027A5 (en) 2000-03-31
CN1127189A (en) 1996-07-24
JP3159892B2 (en) 2001-04-23
AU690272B2 (en) 1998-04-23
DE69508314T2 (en) 1999-08-26
AU2490795A (en) 1996-01-25
DE69508314D1 (en) 1999-04-22
CA2153860A1 (en) 1996-01-15
ES2130474T3 (en) 1999-07-01
EP0692348B1 (en) 1999-03-17
ATE177671T1 (en) 1999-04-15
TW283679B (en) 1996-08-21
JPH0852697A (en) 1996-02-27
DK0692348T3 (en) 1999-10-11
CA2153860C (en) 1999-08-03
US6325263B1 (en) 2001-12-04
BR9503300A (en) 1996-07-09
KR0174643B1 (en) 1999-02-18

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