EP1095745A2 - Method for preparing a system composed of shaping tools, an adjustment rig for carrying out the method and a system of elements for preparing the upper part of a stripping tool - Google Patents

Method for preparing a system composed of shaping tools, an adjustment rig for carrying out the method and a system of elements for preparing the upper part of a stripping tool Download PDF

Info

Publication number
EP1095745A2
EP1095745A2 EP00122677A EP00122677A EP1095745A2 EP 1095745 A2 EP1095745 A2 EP 1095745A2 EP 00122677 A EP00122677 A EP 00122677A EP 00122677 A EP00122677 A EP 00122677A EP 1095745 A2 EP1095745 A2 EP 1095745A2
Authority
EP
European Patent Office
Prior art keywords
ejection
board
central
ejector
ejector plate
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.)
Withdrawn
Application number
EP00122677A
Other languages
German (de)
French (fr)
Other versions
EP1095745A3 (en
Inventor
Mauro Chiari
Sylvain Rebet
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
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bobst SA filed Critical Bobst SA
Publication of EP1095745A2 publication Critical patent/EP1095745A2/en
Publication of EP1095745A3 publication Critical patent/EP1095745A3/en
Withdrawn legal-status Critical Current

Links

Images

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
    • 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
    • B26D2007/189—Mounting blanking, stripping and break-out tools
    • 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
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49895—Associating parts by use of aligning means [e.g., use of a drift pin or a "fixture"]
    • 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
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49895—Associating parts by use of aligning means [e.g., use of a drift pin or a "fixture"]
    • Y10T29/49897—Registering mating opposed tool parts [e.g., registering a punch and a cooperating die]
    • 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
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49895—Associating parts by use of aligning means [e.g., use of a drift pin or a "fixture"]
    • Y10T29/49899—Associating parts by use of aligning means [e.g., use of a drift pin or a "fixture"] by multiple cooperating aligning means
    • 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
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49895—Associating parts by use of aligning means [e.g., use of a drift pin or a "fixture"]
    • Y10T29/49902—Associating parts by use of aligning means [e.g., use of a drift pin or a "fixture"] by manipulating aligning means
    • 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
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53961—Means to assemble or disassemble with work-holder for assembly

Definitions

  • the present invention relates to a process for preparing a shaping tool system of a shaping press ejection station, this system of shaping tools comprising at least one central board and an upper form of ejection with an ejector plate.
  • the invention also relates to an adjustment table for placing implement this process.
  • the invention also relates to a set of elements comprising an ejector plate and a set of ejectors for preparing a superior form of ejection.
  • Presses for shaping sheets of compact cardboard or corrugated cardboard intended for the production of packaging include generally several stations, placed one after the other in the press, which the sheets pass through successively. From an introducer or feeder, the leaves pass, at a tactical pace, a cutting where each sheet is cut into one or more poses, which remain connected to each other by fasteners and carry with them the waste sheet located around and between them, an ejection station where the waste resulting from the cutting are removed, then a station of separation of the poses where the ties are broken, as a result of which the poses are stacked.
  • the cut sheet is placed on a perforated board, the central ejection board, comprising a plurality pre-cut days. These openings are located next to the waste of the leaf and have a shape broadly corresponding to these, while with a slightly larger outline.
  • the central ejection board uses at least one mobile upper ejection tool which, when descending perpendicular to the cardboard sheet, pushes the waste through the openings of the central ejection board.
  • a superior ejection tool As a superior ejection tool, a upper form of ejection consisting of a wooden board, on which are fixed, by screwing, nailing or gluing them, at the locations corresponding to the waste to be ejected, ejectors of various shapes and adapted to the shape of the waste, such as nails, pins, blades or blocks of wood.
  • the preparation of such a form of ejection requires long and meticulousness of a formist; such a form of ejection can only be used for a single cutting diagram.
  • a universal ejection tool comprising a ejector plate, consisting of a pair of identical perforated sheets a large number of holes over their entire surface and mounted on a frame tubular.
  • the ejectors are chosen from rectangular blocks fitted with magnetic fixing studs and ejection needles consisting of a rod folded twice at right angles to form a U with two unequal branches length, which are introduced both into two pairs of holes of the two sheets perforated and remain there thanks to the relative elasticity of the two branches.
  • Patent CH-682651 describes a mobile upper station tool separation of poses, consisting of punches and a plate provided with openings intended for the passage of air, which carries them.
  • the underside of the plate is covered with a layer of hanging fibers of the "velcro" type or similar.
  • the upper side of each separation punch is covered with a second layer of hooked conjugated fibers, "velcro" or the like, intended to come into engagement with the layer of fibers covering the plate for secure the punch to the plate.
  • the punches are arranged with a way that corresponds to the locations of the fasteners between the poses of a leaf. This tool is modified for each job and allows not to store a large number of pose separation tools, each corresponding to a given work.
  • Automated shaping presses are capable of processing several thousand sheets per hour. Small series of poses for packaging itself contains only a few thousand copies. he it is therefore economically imperative to be able to move from work to the other, i.e. to prepare the shaping tools and the introduction of tools into the machine, formatting and maintenance, without the machine has been stopped for more than a few minutes.
  • An object of the invention is to propose means of achieving quickly preparing the shaping tools, in particular the shaping of the ejection station, in masked time, that is to say while the machine does another job, drawing on a limited stock of parts standardized.
  • Another object of the invention is to prepare these tools in such a way so that setting up in the station does not require adjustments tedious. Finally, the preparation must be as precise as the work of a formist.
  • This process can be carried out in accordance with the invention using an adjustment table comprising a frame carrying support means and means for fixing the ejector plate, support means for central ejection board to hold a central ejection board at contact or near an ejector plate and fixing means of central ejection board, chosen so as to fix a central board in the adjustment position.
  • the central ejection board serves as a template for quickly and precisely placing the ejectors on the ejector plate.
  • the use of the adjustment table according to the invention allows perform this operation reliably, regardless of the positions respective of the ejection board and the ejector plate, once that they are fixed in the table, the table keeping them in the right adjustment position without risk of inadvertent movement while the operator fixes the ejectors on the plate.
  • the user could, in principle, only store two ejector plates one of which is in operation in the working machine, while the other is prepared off the machine for the next job. A little the number of plates is in any case sufficient.
  • the ejectors and the ejector plate are designed so that the ejectors can be positioned and fixed manually on the plate, and this in a removable way, to be able to modify at their disposal at will.
  • the ejector plate and the central ejection board are in the same relative positions, views in projection on a plane parallel to the board central ejection, that those they occupy once set up in the ejection station, when they are centered laterally with respect to the axis machine and adjusted longitudinally to the first thread.
  • This adjustment position in the adjustment table avoids an operation additional adjustment when inserting these tools into the station ejection.
  • first thread refers to the first transverse thread of the cutting form of the cutting station.
  • shaping tools In today's shaping presses, shaping tools generally have locating and locking members, such as stops and studs, corresponding to reference and locking members machine conjugates, allowing reproducible centering and quick tools when set up, laterally to the "axis machine "and longitudinally with respect to the longitudinal stop positions of the leaf drive system and the longitudinal positions of other tools with which they cooperate, in particular the first net.
  • the position of an ejection form and / or a ejection board, outside machine can be determined by means of the edge front of the plate, respectively of the board and a stop of centering cooperating respectively in machine with a bearing surface and a slot or notch in a stud of a frame or frame of the station where the tool is used.
  • the adjustment table includes two parallel grab bars for the front edges of the plate ejector holders and the central ejection board, offset from each other, if necessary, so as to reproduce the longitudinal adjustment at the first thread of the machine.
  • the adjustment table can have two fixed adjustment pads, each having a notch, a slot or slide, adapted to receive the centering stops on the respective machine axis of the central board and the ejector plate, the two notches / slots / slides being centered with respect to the same plane perpendicular to the plane of the central ejection board and perpendicular to the support plane of a bar support.
  • the grab bars of the adjustment table are contiguous, so that the ejector plate and the central board are in contact with each other in the adjustment position. The precise positioning of the ejectors is thereby facilitated.
  • this may include a latch, arranged on its frame so as to ability to engage the rear edge of the ejector plate.
  • this latch can be mounted on a mobile carriage, sliding on the frame in the direction of the table which corresponds to the machine axis.
  • the adjustment table can also include a pivoting arm in a plane parallel to the plane of the board, the pivot axis of which is arranged above and at a distance from the support bar greater than maximum longitudinal format of the board and plate.
  • This support arm can wear a pressing finger at its free end, fitted with a spring, the pressing force of which keeps the ejection board against the plate ejector holders.
  • the shaping tool system of an ejection station can also include a lower pinch ejection tool, consisting of a plurality of pinching tools, for example telescopic needles, and a or more pinch tool holders.
  • a lower pinch ejection tool consisting of a plurality of pinching tools, for example telescopic needles, and a or more pinch tool holders.
  • pinch tool holders are for example made up of adjustable bars which are arranged and fixed in a drawer frame of the ejection station, carrying fasteners in positions pre-indexed longitudinally and laterally.
  • the method according to the invention includes a step adjustment tool of the lower ejection tool in which the tool holder (s) pinch is (are) brought into an adjustment position, in line with the central ejection board, which is fixed in the adjustment position in face of the upper form of ejection constituted.
  • This adjustment position of the pinching tool holder (s), seen in projection on a plane parallel to the ejection board, is the same as the one (s) it occupies in the station ejection, compared to the central ejection board.
  • the tools of pinch are telescopic needles, these are placed so that the free points of the needles are adjusted in contact with the ejectors.
  • the support for the pinching tool holder (s) of the adjustment table is movable and capable of being moved between the position adjustment tools and a spread position, allowing the free operator access to the central ejection board to facilitate set-up in place or the modification of the positions of the different tool holders and tools.
  • the adjustment table comprises a pivoting frame, the pivot axis of which is located on the frame of the table adjustment, comprising the same plurality of bars fixing members, in the same indexed arrangement, thus reproducing in the adjustment table, the geometrical characteristics of the drawer frame of the ejection station.
  • Figure 1 shows an adjustment table comprising a frame 1 consisting of a portico.
  • a support bar 2 horizontal, on which the front edge of a plate can come to rest ejector holder 4, in vertical position, at a height such that the whole of the surface of the ejector plate 4 is within easy reach of an operator.
  • a horizontal grab bar 3, intended to support the board ejection unit 5, is bolted to the support bar 2.
  • the support bar 3 can be set at the same height that the grab bar 2 or with an offset of a few millimeters to a few tens of millimeters in height, which exactly corresponds to the offset the front edges of the ejector plate and the central board in the ejection station, when set to the first thread.
  • the support bar 3 carries two studs 6 and 7, each provided with a notch whose size is exactly adapted to receive respectively the centering stop of the tool plate (not visible in figure 1) and that, 8 of the central ejection board.
  • the notches of pads 6 and 7 are aligned in a plane perpendicular to the support bar 3.
  • the stud 6 can engage in a corresponding recess 9 in the support bar 2.
  • FIG. 1 On the support bar 2 is mounted an interior gantry, of which only one uprights 10 is shown in FIG. 1. It includes a rail system, cables, pulleys and counterweights, known per se, which allow you to slide in the vertical direction of a carriage 11.
  • the carriage 11 carries a central latch 12 which engages with the posterior rim of the upper ejection form 4.
  • the vertical sliding of the carriage 11 makes it possible to grasp and maintain shapes upper ejectors of variable longitudinal dimensions.
  • the distance maximum of the latch relative to the grab bar 2 is greater than the length of the maximum sheet format acceptable by the shaping press.
  • the length of the grab bars 2 and 3 is greater than the width of the format maximum sheet acceptable by the shaping press.
  • the frame 1 carries a pivoting arm 13, pivoting in a vertical plane parallel to the support bar 3, and therefore to the central ejection board 5.
  • the axis pivot 14 of arm 13 is located at a height from the bars support 2 and 3, which is larger than the largest size of upper tool and ejection board.
  • the free end of the arm 13 carries a finger presser 15.
  • a spring mounted between the telescopic finger support head presser 15 and arm 13 tends to exert a pressing force against the board ejection unit 5 and keep it pressed against the ejector plate 4.
  • the frame 1 supports on one of its sides, an axis of rotation 19 vertical, on which a frame 16 is mounted, by means of parts spacing 20. Because of the weight of the frame 16, it is mounted, on the other side of the frame 1, on a foot 17 itself mounted on casters. On the same side as the foot 17, the frame 16 carries spacing rods 18.
  • Frame 16 is the replica of the drawer-frame of the ejection station, which is designed to carry, by means of adjustable tool bars, the lower ejection needles.
  • the frame 16 carries the same organs of fixing 21,22 for adjustable bars, in the same arrangement and with the same indexing, using numbers, as the drawer frame. In this way, a adjustable bar, or a set of adjustable bars secured by a cross member and forming a sub-frame, can be transported from the drawer-frame of the ejection station at the adjustment table and vice versa, without error of replacement.
  • the spacing rods 18 abut against a part corresponding to the frame 1.
  • the assembly formed by the spacers 20 and the spacer rods 18 is adjusted so that in this position in stop, the frame 16 is parallel to the support bars 2 and 3 and is located at a distance such that when the ejection board 5 and an adjustable bar are placed in the adjustment table, they are at a distance one on the other which is equal to the distance between them in the ejection station in upper position of the drawer frame, slightly increased in length greater than the thickness of the board.
  • the tool plate shown in Figure 2 is similar to the plate of the movable upper separation device described in the patent CH-682651. It is a wooden plate made up of a rectangular frame 41 of 1.6 x 1.1 x 0.02 m, the sides of which are connected by a plurality of cross-pieces 42, to form a perforated flat plate.
  • the face of the braces intended to come next to the cardboard sheet and the central board ejection is covered, for example by gluing, with a layer of fibers hanging Velcro type.
  • the openings 44 between braces perpendicular are square or rectangular holes with sides of around 30 to 40 millimeters.
  • the front side of the frame 41 carries a stop of prominent centering 43.
  • the ejectors are studs of various shapes, in particular cylindrical, prismatic or rectangular.
  • the stud 100 shown in section in Figure 3, includes a base 101 consisting of a base plate covered metal, by gluing on its face intended to come into contact with the ejector plate, of a layer 102 of hanging fibers of the type "velcro", suitable for fixing the stud to the ejector plate.
  • the fiber layer 102 is discontinuous, formed of two strips, to facilitate the hanging.
  • the other side of the metal plate is lined with a block of resilient foam 103, for example PVC or PU, chosen to be able to detach the waste from the sheet by slightly crushing, then return to its original form a large number of times.
  • the surface of the wafer forming the base 101 is chosen so that it can be fixed on the plate ejector holder without overhang despite the openings between the crossbars.
  • the openings of the ejector plate are squares of the order of 40 x 40 millimeters
  • the ejector can, for example, have a base surface 75 x 30 mm rectangular or 50 mm circular surface of diameter.
  • the ejector can also consist of a block of wood.
  • the ejector plate 40 is placed on the support bar 2, with its centering stop 43 engaged in the notch of the centering stud 6, and the Velcro side facing the front of the adjustment table.
  • the latch 12 comes maintain the edge of the plate 40.
  • the central ejection board 5, prefabricated, is placed on the support bar 3, and its centering stop 8 engaged in the notch of the centering stud 7.
  • the pivoting arm 13 is lowered by pulling on the end of the presser finger 15, then released, so that the central ejection board 5 is pressed against the "velcro" surface of the ejector support plate 40, leaving the surfaces of the plate free ejector holders which correspond to cutting waste.
  • Ejector pads 100 are applied by the operator, "velcro vulgar velcro", following the perimeter openings of the central ejection board 5, and leaving a space of in the order of 3-4 mm.
  • the ejector holder plate can still receive outside areas corresponding to the openings of the ejection board, of the support blocks, the structure is similar to that of the ejector 100, except that the foam used is a soft foam, which crashes when the upper shape ejection comes into contact with the cardboard sheet, to resume its shape when the form of ejection rises.
  • These support blocks help maintain the cardboard sheet on the central ejection board during the phase ejection.
  • the superior form of ejection thus prepared makes it possible to treat the most of the work of cutting sheets into poses, for the realization cardboard packaging, which does not contain small waste.
  • Example 2 Preparation of an upper ejection tool in the case of small waste
  • the ejector plate consists of a pair of sheets perforated metal mounted on a frame, as described in the Patent application CH 1417/99.
  • the plate is placed on the bar support 2 of the adjustment table, and the machine centering stop of the ejector holder plate is engaged in the notch of the centering pin 6.
  • the movable carriage 11 is lowered so that the latch 12 comes into taken with the upper edge of the ejector plate.
  • the central board ejection 5 is set up in the same way as in Example 1.
  • the installation of ejectors in the form of studs with a magnetic base is done the same way as in Example 1.
  • the operator goes to the other side of the adjustment table, from where he perfectly distinguishes the openings of the central ejection board, through the multitude of holes in the perforated plates.
  • the central ejection board After installing the ejectors, the central ejection board is removed from the table.
  • the upper form of ejection can still receive soft foam support blocks, provided with a magnetic base.
  • the preparation of the upper form of ejection is done as in example 2.
  • the operator has in front of him the ejection board and, going beyond openings in the board, all needles and ejector pads. He is at even judge what waste may not come off completely and cause a risk of jamming. It places needle bars vertically telescopic on the appropriate indexed fasteners 22 of the frame 16 and on a crossbar, itself fixed to the fixing members 21, and approximately fixes the telescopic needles there.
  • Frame 16 is brought into its adjustment position and the position of the telescopic needles in a plane parallel to the central ejection board is adjusted so that the free point of the telescopic needle comes exactly to the right of a upper ejection needle or a selected area of an ejector pad.
  • the height of the telescopic pinching needle, along an axis perpendicular to this plane, is then adjusted so that at rest it comes to press slightly, or by sinking about 1 to 2 millimeters, against the head of the ejector.
  • the frame 16 is brought back and the bars adjustable are placed in the drawer frame of the ejection station, respecting indexing the fasteners.
  • the central ejection board is then removed, placed in the clamping profile ejection station 23.
  • the upper form of ejection possibly receives support blocks and, finally, this upper form of ejection is implemented in the ejection station and fixed using clamping profiles 23.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)
  • Details Of Cutting Devices (AREA)

Abstract

The procedure consists of the following stages: locating the central ejection panel (5) and ejector carrier plate (4) face to face outside the shaping press and fixing them in a regulating position; fixing the ejectors to the plate to the right of the central ejection ports to form the upper ejection form; and the upper form and central panel are fitted and centred in the ejection station of the press. In the regulating position the ejector plate and central panel are in the same relative positions as those they will occupy in the ejection station after assembly.

Description

La présente invention concerne un procédé pour préparer un système d'outils de façonnage d'une station d'éjection de presse de façonnage, ce système d'outils de façonnage comprenant au moins une planche centrale d'éjection et une forme supérieure d'éjection avec une plaque porte-éjecteurs.The present invention relates to a process for preparing a shaping tool system of a shaping press ejection station, this system of shaping tools comprising at least one central board and an upper form of ejection with an ejector plate.

L'invention concerne également une table de réglage pour mettre en oeuvre ce procédé. L'invention concerne aussi un ensemble d'éléments comprenant une plaque porte-éjecteurs et un jeu d'éjecteurs pour préparer une forme supérieure d'éjection.The invention also relates to an adjustment table for placing implement this process. The invention also relates to a set of elements comprising an ejector plate and a set of ejectors for preparing a superior form of ejection.

Les presses de façonnage de feuilles de carton compact ou de carton ondulé destinées à la production d'emballages comprennent généralement plusieurs stations, placées les unes à la suite des autres dans la presse, que les feuilles parcourent successivement. A partir d'un introducteur ou margeur, les feuilles parcourent, à cadence tactée, une station de découpage où chaque feuille est découpée en une ou plusieurs poses, qui restent reliées entre elles par des attaches et entraínent avec elles les déchets de feuille situés autour et entre elles, une station d'éjection où les déchets résultant du découpage sont retirés, puis une station de séparation des poses où les attaches sont rompues, à la suite de quoi les poses sont empilées.Presses for shaping sheets of compact cardboard or corrugated cardboard intended for the production of packaging include generally several stations, placed one after the other in the press, which the sheets pass through successively. From an introducer or feeder, the leaves pass, at a tactical pace, a cutting where each sheet is cut into one or more poses, which remain connected to each other by fasteners and carry with them the waste sheet located around and between them, an ejection station where the waste resulting from the cutting are removed, then a station of separation of the poses where the ties are broken, as a result of which the poses are stacked.

Dans la station d'éjection, la feuille découpée est déposée sur une planche ajourée, la planche centrale d'éjection, comportant une pluralité d'ajours prédécoupés. Ces ajours sont situés en regard des déchets de la feuille et ont une forme correspondant globalement à ces derniers, tout en présentant un contour légèrement plus grand. Pour l'opération d'éjection, on utilise au moins un outil supérieur d'éjection mobile qui, en descendant perpendiculairement à la feuille de carton, pousse les déchets au travers des ajours de la planche centrale d'éjection.In the ejection station, the cut sheet is placed on a perforated board, the central ejection board, comprising a plurality pre-cut days. These openings are located next to the waste of the leaf and have a shape broadly corresponding to these, while with a slightly larger outline. For the ejection operation, uses at least one mobile upper ejection tool which, when descending perpendicular to the cardboard sheet, pushes the waste through the openings of the central ejection board.

En tant qu'outil supérieur d'éjection, on utilise fréquemment une forme supérieure d'éjection consistant en une planche de bois, sur laquelle sont fixés, en les vissant, les clouant ou les collant, aux emplacements correspondants aux déchets à éjecter, des éjecteurs de formes variées et adaptées à la forme des déchets, tels que clous, goupilles, lames ou blocs de bois. La préparation d'une telle forme d'éjection requiert le travail long et minutieux d'un formiste ; une telle forme d'éjection ne peut servir que pour un seul schéma de découpe. Si l'entreprise est amenée à exécuter de manière récurrente un grand nombre de travaux différents, en petite ou moyenne série, elle est obligée de réaliser et stocker le même nombre de formes d'éjection différentes, chacune de celles-ci ayant un coût de fabrication de plusieurs centaines de francs suisses.As a superior ejection tool, a upper form of ejection consisting of a wooden board, on which are fixed, by screwing, nailing or gluing them, at the locations corresponding to the waste to be ejected, ejectors of various shapes and adapted to the shape of the waste, such as nails, pins, blades or blocks of wood. The preparation of such a form of ejection requires long and meticulousness of a formist; such a form of ejection can only be used for a single cutting diagram. If the business is required to perform in a recurring a large number of different works, in small or medium series, it is obliged to carry out and store the same number of forms of ejection different, each of these having a manufacturing cost of several hundreds of Swiss francs.

Pour remédier à cet inconvénient, la demande de brevet CH 1417/99 du déposant décrit un outil universel d'éjection comprenant une plaque porte-éjecteurs, constituée d'une paire de tôles identiques, perforées d'un grand nombre de trous sur toute leur surface et montées sur un cadre tubulaire. Les éjecteurs sont choisis parmi des blocs rectangulaires munis de plots de fixation magnétiques et des aiguilles d'éjection constituées d'une tige pliée deux fois à angle droit pour former un U avec deux branches d'inégale longueur, qui sont introduites à la fois dans deux paires de trous des deux tôles perforées et y restent maintenues grâce à l'élasticité relative des deux branches.To remedy this drawback, the patent application Applicant's CH 1417/99 describes a universal ejection tool comprising a ejector plate, consisting of a pair of identical perforated sheets a large number of holes over their entire surface and mounted on a frame tubular. The ejectors are chosen from rectangular blocks fitted with magnetic fixing studs and ejection needles consisting of a rod folded twice at right angles to form a U with two unequal branches length, which are introduced both into two pairs of holes of the two sheets perforated and remain there thanks to the relative elasticity of the two branches.

Le brevet CH-682651 décrit un outil supérieur mobile de station de séparation de poses, constitué de poinçons et d'une plaque munie d'ouvertures destinées au passage de l'air, qui les porte. La face inférieure de la plaque est recouverte d'une couche de fibres accrochantes de type "velcro" ou similaire. La face supérieure de chaque poinçon de séparation est recouverte d'une seconde couche de fibres accrochantes conjuguées, "velcro" ou similaire, destinée à venir en prise avec la couche de fibres recouvrant la plaque pour assurer la fixation du poinçon à la plaque. Les poinçons sont agencés d'une manière qui correspond aux emplacements des attaches entre les poses d'une feuille. Cet outil est modifié pour chaque travail et permet de ne pas stocker un grand nombre d'outils de séparation de poses correspondant chacun à un travail donné.Patent CH-682651 describes a mobile upper station tool separation of poses, consisting of punches and a plate provided with openings intended for the passage of air, which carries them. The underside of the plate is covered with a layer of hanging fibers of the "velcro" type or similar. The upper side of each separation punch is covered with a second layer of hooked conjugated fibers, "velcro" or the like, intended to come into engagement with the layer of fibers covering the plate for secure the punch to the plate. The punches are arranged with a way that corresponds to the locations of the fasteners between the poses of a leaf. This tool is modified for each job and allows not to store a large number of pose separation tools, each corresponding to a given work.

Les presses de façonnage automatisées sont capables de traiter plusieurs milliers de feuilles par heure. Les petites séries de poses pour emballages ne comportent elles-mêmes que quelques milliers d'exemplaires. Il est donc impératif, sur le plan économique, de pouvoir passer d'un travail à l'autre, c'est-à-dire d'effectuer la préparation des outils de façonnage et l'introduction des outils en machine, la mise au format et la maintenance, sans que la machine soit arrêtée pendant plus de quelques minutes. Automated shaping presses are capable of processing several thousand sheets per hour. Small series of poses for packaging itself contains only a few thousand copies. he it is therefore economically imperative to be able to move from work to the other, i.e. to prepare the shaping tools and the introduction of tools into the machine, formatting and maintenance, without the machine has been stopped for more than a few minutes.

Bien que l'opération de fixation proprement dite des éjecteurs et poinçons mentionnés ci-dessus à leurs supports soit rapide, elle reste très délicate car une erreur de placement peut entraíner un bourrage de la machine. Leur préparation peut donc nécessiter des corrections fastidieuses.Although the actual attachment operation of the ejectors and punches mentioned above to their supports is fast, it remains very delicate because a placement error can cause a jam of the machine. Their preparation may therefore require tedious corrections.

Un but de l'invention est de proposer des moyens de réaliser rapidement la préparation des outils de façonnage, en particulier des outils de façonnage de la station d'éjection, en temps masqué, c'est-à-dire pendant que la machine effectue un autre travail, en puisant dans un stock limité de pièces standardisées. Un autre but de l'invention est de préparer ces outils de telle façon que la mise en place dans la station ne nécessite pas de réglages fastidieux. Enfin, la préparation doit être aussi précise que le travail d'un formiste.An object of the invention is to propose means of achieving quickly preparing the shaping tools, in particular the shaping of the ejection station, in masked time, that is to say while the machine does another job, drawing on a limited stock of parts standardized. Another object of the invention is to prepare these tools in such a way so that setting up in the station does not require adjustments tedious. Finally, the preparation must be as precise as the work of a formist.

Ces buts sont atteints grâce à un procédé, tel que défini d'entrée, présentant les caractéristiques selon la revendication 1, grâce à une table de réglage présentant les caractéristiques selon la revendication 9 et grâce à un ensemble d'éléments selon la revendication 19.These goals are achieved by a process, as defined from the outset, having the features of claim 1, thanks to a table adjustment having the characteristics according to claim 9 and thanks to a set of elements according to claim 19.

L'invention propose donc un procédé pour préparer un système d'outils de façonnage d'une station d'éjection de presse de façonnage comprenant au moins une planche centrale d'éjection et une forme supérieure d'éjection avec une plaque porte-éjecteurs, comportant les étapes suivantes:

  • la planche centrale d'éjection et la plaque porte-éjecteurs sont disposées face à face, à l'extérieur de la presse de façonnage, et fixées dans une position de réglage,
  • les éjecteurs sont fixés sur la plaque porte-éjecteurs, au droit des ajours de la planche centrale d'éjection, pour constituer la forme supérieure d'éjection,
  • la forme supérieure d'éjection et la planche centrale d'éjection sont placées et centrées dans la station d'éjection.
The invention therefore provides a method for preparing a system of tools for shaping a shaping press ejection station comprising at least one central ejection board and an upper form of ejection with an ejector plate, with the following steps:
  • the central ejection board and the ejector support plate are placed face to face, outside the shaping press, and fixed in an adjustment position,
  • the ejectors are fixed to the ejector plate, in line with the openings of the central ejection board, to constitute the upper form of ejection,
  • the upper ejection form and the central ejection board are placed and centered in the ejection station.

Ce procédé peut être effectué conformément à l'invention à l'aide d'une table de réglage comprenant un bâti portant des moyens de support et des moyens de fixation de plaque porte-éjecteurs, des moyens de support de planche centrale d'éjection pour tenir une planche centrale d'éjection au contact ou à proximité d'une plaque porte-éjecteurs et des moyens de fixation de planche centrale d'éjection, choisis de façon à fixer une planche centrale d'éjection dans la position de réglage. This process can be carried out in accordance with the invention using an adjustment table comprising a frame carrying support means and means for fixing the ejector plate, support means for central ejection board to hold a central ejection board at contact or near an ejector plate and fixing means of central ejection board, chosen so as to fix a central board in the adjustment position.

Dans le procédé selon l'invention, la planche centrale d'éjection sert de gabarit pour placer de manière rapide et précise les éjecteurs sur la plaque porte-éjecteurs.In the method according to the invention, the central ejection board serves as a template for quickly and precisely placing the ejectors on the ejector plate.

L'utilisation de la table de réglage selon l'invention permet d'effectuer cette opération de manière fiable, sans se préoccuper des positions respectives de la planche d'éjection et de la plaque porte-éjecteurs, une fois qu'elles se trouvent fixées dans la table, la table les maintenant dans la bonne position de réglage sans risque de déplacement intempestif pendant que l'opérateur fixe les éjecteurs sur la plaque.The use of the adjustment table according to the invention allows perform this operation reliably, regardless of the positions respective of the ejection board and the ejector plate, once that they are fixed in the table, the table keeping them in the right adjustment position without risk of inadvertent movement while the operator fixes the ejectors on the plate.

L'utilisateur pourrait, en principe, ne stoker que deux plaques porte-éjecteurs dont l'une est en opération dans la machine en train de fonctionner, pendant que l'autre est préparée hors machine pour le travail suivant. Un petit nombre de plaques est en tous cas suffisant.The user could, in principle, only store two ejector plates one of which is in operation in the working machine, while the other is prepared off the machine for the next job. A little the number of plates is in any case sufficient.

De préférence, les éjecteurs et la plaque porte-éjecteurs sont conçus de façon à ce que les éjecteurs puissent être placés et fixés manuellement sur la plaque, et ce de façon amovible, pour pouvoir modifier leur disposition à volonté.Preferably, the ejectors and the ejector plate are designed so that the ejectors can be positioned and fixed manually on the plate, and this in a removable way, to be able to modify at their disposal at will.

De préférence, dans la position de réglage, la plaque porte-éjecteurs et la planche centrale d'éjection se trouvent dans les mêmes positions relatives, vues en projection sur un plan parallèle à la planche centrale d'éjection, que celles qu'elles occupent une fois mises en place dans la station d'éjection, lorsqu'elles sont centrées latéralement par rapport à l'axe machine et réglées longitudinalement au premier filet. L'adoption de cette position de réglage dans la table de réglage évite une opération supplémentaire de réglage lors de l'introduction de ces outils dans la station d'éjection.Preferably, in the adjustment position, the ejector plate and the central ejection board are in the same relative positions, views in projection on a plane parallel to the board central ejection, that those they occupy once set up in the ejection station, when they are centered laterally with respect to the axis machine and adjusted longitudinally to the first thread. The adoption of this adjustment position in the adjustment table avoids an operation additional adjustment when inserting these tools into the station ejection.

Les termes tels que "longitudinal", "latéral", "antérieur" et postérieur" sont utilisés ici en se référant au sens d'avancement des feuilles dans la machine. L'axe machine est un axe virtuel dans le sens d'avancement, qui sert de référence à tous les réglages de pièces de la presse de façonnage dans le sens transversal.Terms like "longitudinal", "lateral", "anterior" and posterior "are used here referring to the direction of advancement of the leaves in the machine. The machine axis is a virtual axis in the direction of advancement, which serves as a reference for all the settings of parts of the shaping press in the transverse direction.

Le terme "premier filet" se réfère au premier filet transversal de la forme à découper de la station de découpage.The term "first thread" refers to the first transverse thread of the cutting form of the cutting station.

Dans les presses de façonnage actuelles, les outils de façonnage présentent généralement des organes de repère et de verrouillage, tels que butées et plots, correspondant à des organes de repère et de verrouillage conjugués de la machine, permettant de centrer de façon reproductible et rapide les outils lors de leur mise en place, latéralement par rapport à l'"axe machine" et, longitudinalement, par rapport aux positions longitudinales d'arrêt du système d'entraínement des feuilles et aux positions longitudinales des autres outils avec lesquels ils coopèrent, notamment au premier filet. Dans la mise en oeuvre de l'invention, la position d'une forme d'éjection et/ou d'une planche d'éjection, hors machine, peut être déterminée au moyen du bord antérieur de la plaque, respectivement de la planche et d'une butée de centrage coopérant respectivement en machine avec une surface d'appui et une fente ou encoche d'un plot d'un bâti ou cadre de la station où l'outil est utilisé.In today's shaping presses, shaping tools generally have locating and locking members, such as stops and studs, corresponding to reference and locking members machine conjugates, allowing reproducible centering and quick tools when set up, laterally to the "axis machine "and longitudinally with respect to the longitudinal stop positions of the leaf drive system and the longitudinal positions of other tools with which they cooperate, in particular the first net. In the implementation of the invention, the position of an ejection form and / or a ejection board, outside machine, can be determined by means of the edge front of the plate, respectively of the board and a stop of centering cooperating respectively in machine with a bearing surface and a slot or notch in a stud of a frame or frame of the station where the tool is used.

Pour placer la plaque porte-éjecteurs et la planche centrale d'éjection dans la position de réglage mentionnée ci-dessus, la table de réglage comprend deux barres d'appui parallèles pour les bords antérieurs de la plaque porte-éjecteurs et de la planche centrale d'éjection, décalées l'une de l'autre, s'il y a lieu, de telle sorte à reproduire le réglage longitudinal au premier filet de la machine. La table de réglage peut comporter deux plots de réglage fixes, présentant chacun une encoche, une fente ou glissière, adaptées à recevoir les butées de centrage sur l'axe machine respectives de la planche centrale d'éjection et de la plaque porte-éjecteurs, les deux encoches/fentes/glissières étant centrées par rapport à un même plan perpendiculaire au plan de la planche centrale d'éjection et perpendiculaire au plan d'appui d'une barre d'appui.To place the ejector plate and the central board in the above-mentioned adjustment position, the adjustment table includes two parallel grab bars for the front edges of the plate ejector holders and the central ejection board, offset from each other, if necessary, so as to reproduce the longitudinal adjustment at the first thread of the machine. The adjustment table can have two fixed adjustment pads, each having a notch, a slot or slide, adapted to receive the centering stops on the respective machine axis of the central board and the ejector plate, the two notches / slots / slides being centered with respect to the same plane perpendicular to the plane of the central ejection board and perpendicular to the support plane of a bar support.

De préférence, les barres d'appui de la table de réglage sont contiguës, de telle sorte que la plaque porte-éjecteurs et la planche centrale d'éjection se trouvent en contact l'une avec l'autre dans la position de réglage. La mise en place précise des éjecteurs s'en trouve facilitée.Preferably, the grab bars of the adjustment table are contiguous, so that the ejector plate and the central board are in contact with each other in the adjustment position. The precise positioning of the ejectors is thereby facilitated.

Pour maintenir en place la plaque porte-éjecteurs dans la table de réglage, celle-ci peut comprendre un loquet, agencé sur son bâti de façon à pouvoir venir en prise avec le bord postérieur de la plaque porte-éjecteurs. Pour tenir compte de différentes dimensions possibles de la plaque porte-éjecteurs, ce loquet peut être monté sur un chariot mobile, coulissant sur le bâti dans la direction de la table qui correspond à l'axe machine.To keep the ejector plate in place in the table adjustment, this may include a latch, arranged on its frame so as to ability to engage the rear edge of the ejector plate. To take into account different possible dimensions of the ejector plate, this latch can be mounted on a mobile carriage, sliding on the frame in the direction of the table which corresponds to the machine axis.

Pour maintenir la planche centrale d'éjection contre la plaque porte-éjecteurs, la table de réglage peut également comporter un bras pivotant dans un plan parallèle au plan de la planche, dont l'axe de pivotement est agencé au-dessus de la barre d'appui et à une distance de celle-ci supérieure au format longitudinal maximal de la planche et de la plaque. Ce bras d'appui peut porter à son extrémité libre un doigt presseur, muni d'un système de rappel à ressort, dont la force pressante maintient la planche d'éjection contre la plaque porte-éjecteurs.To hold the central ejection board against the ejector plate, the adjustment table can also include a pivoting arm in a plane parallel to the plane of the board, the pivot axis of which is arranged above and at a distance from the support bar greater than maximum longitudinal format of the board and plate. This support arm can wear a pressing finger at its free end, fitted with a spring, the pressing force of which keeps the ejection board against the plate ejector holders.

Le système d'outils de façonnage d'une station d'éjection peut comporter également un outil inférieur d'éjection à pincement, constitué d'une pluralité d'outils de pincement, par exemple des aiguilles télescopiques, et d'un ou plusieurs porte-outils de pincement. De tels porte-outils de pincement sont par exemple constitués de barres réglables qui sont agencées et fixées dans un cadre-tiroir de la station d'éjection, portant des organes de fixation dans des positions pré-indexées longitudinalement et latéralement.The shaping tool system of an ejection station can also include a lower pinch ejection tool, consisting of a plurality of pinching tools, for example telescopic needles, and a or more pinch tool holders. Such pinch tool holders are for example made up of adjustable bars which are arranged and fixed in a drawer frame of the ejection station, carrying fasteners in positions pre-indexed longitudinally and laterally.

Avantageusement, le procédé selon l'invention inclut une étape d'ajustement de l'outil inférieur d'éjection dans laquelle le ou les porte-outils de pincement est(sont) amené(s) dans une position d'ajustement, au droit de la planche centrale d'éjection, qui, elle, est fixée dans la position de réglage en face de la forme supérieure d'éjection constituée. Cette position d'ajustement du ou des porte-outils de pincement, vue en projection sur un plan parallèle à la planche d'éjection, est la même que celle qu'il(s) occupe(nt) dans la station d'éjection, par rapport à la planche centrale d'éjection. Lorsque les outils de pincement sont des aiguilles télescopiques, celles-ci sont placées de telle sorte que les pointes libres des aiguilles sont ajustées au contact des éjecteurs.Advantageously, the method according to the invention includes a step adjustment tool of the lower ejection tool in which the tool holder (s) pinch is (are) brought into an adjustment position, in line with the central ejection board, which is fixed in the adjustment position in face of the upper form of ejection constituted. This adjustment position of the pinching tool holder (s), seen in projection on a plane parallel to the ejection board, is the same as the one (s) it occupies in the station ejection, compared to the central ejection board. When the tools of pinch are telescopic needles, these are placed so that the free points of the needles are adjusted in contact with the ejectors.

De préférence, le support pour le ou les porte-outils de pincement de la table de réglage est mobile et susceptible d'être déplacé entre la position d'ajustement des outils de pincement et une position écartée, permettant le libre accès d'un opérateur à la planche centrale d'éjection pour faciliter la mise en place ou la modification des positions des différents porte-outils et outils.Preferably, the support for the pinching tool holder (s) of the adjustment table is movable and capable of being moved between the position adjustment tools and a spread position, allowing the free operator access to the central ejection board to facilitate set-up in place or the modification of the positions of the different tool holders and tools.

Lorsque la presse de façonnage est équipée pour recevoir les aiguilles télescopiques portées par des barres réglables, elles-mêmes portées par un cadre-tiroir de la station d'éjection comportant une pluralité d'organes de fixation de barres, dans un agencement indexé, la table de réglage comporte un cadre pivotant, dont l'axe de pivotement est situé sur le bâti de la table de réglage, comportant une même pluralité d'organes de fixation de barres, dans le même agencement indexé, reproduisant ainsi dans la table de réglage, les caractéristiques géométriques du cadre-tiroir de la station d'éjection. When the shaping press is equipped to receive the telescopic needles carried by adjustable bars, themselves carried by a drawer-frame of the ejection station comprising a plurality of fixing bars, in an indexed arrangement, the adjustment table comprises a pivoting frame, the pivot axis of which is located on the frame of the table adjustment, comprising the same plurality of bars fixing members, in the same indexed arrangement, thus reproducing in the adjustment table, the geometrical characteristics of the drawer frame of the ejection station.

D'autres caractéristiques du procédé et du dispositif selon l'invention ressortiront pour l'homme du métier de la description ci-dessous d'un mode d'exécution de la table de réglage, en se référant au dessin, dans lequel :

  • la figure 1 montre une vue en perspective éclatée de ce mode d'exécution,
  • la figure 2 montre une vue schématique, de face, d'une plaque porte-éjecteurs,
  • la figure 3 montre une vue schématique d'un éjecteur en coupe perpendiculaire au plan de la plaque de la figure 2
Other characteristics of the method and of the device according to the invention will emerge for a person skilled in the art from the description below of an embodiment of the adjustment table, with reference to the drawing, in which:
  • FIG. 1 shows an exploded perspective view of this embodiment,
  • FIG. 2 shows a schematic front view of an ejector support plate,
  • Figure 3 shows a schematic view of an ejector in section perpendicular to the plane of the plate of Figure 2

La figure 1 montre une table de réglage comprenant un bâti 1 constitué d'un portique portant. Dans le portique est fixé une barre d'appui 2, horizontale, sur laquelle peut venir reposer le bord antérieur d'une plaque porte-éjecteurs 4, en position verticale, à une hauteur telle que l'ensemble de la surface de la plaque porte-éjecteurs 4 est à portée de main d'un opérateur.Figure 1 shows an adjustment table comprising a frame 1 consisting of a portico. In the gantry is fixed a support bar 2, horizontal, on which the front edge of a plate can come to rest ejector holder 4, in vertical position, at a height such that the whole of the surface of the ejector plate 4 is within easy reach of an operator.

Une barre d'appui 3, horizontale, destinée à supporter la planche centrale d'éjection 5, est boulonnée à la barre d'appui 2. Selon le type de machine ou le type d'outil, la barre d'appui 3 peut être calée à la même hauteur que la barre d'appui 2 ou avec un décalage de quelques millimètres à quelques dizaines de millimètres en hauteur, qui correspond exactement au décalage des bords antérieurs de la plaque porte-éjecteurs et de la planche centrale d'éjection dans la station d'éjection, lorsqu'elles sont réglées au premier filet.A horizontal grab bar 3, intended to support the board ejection unit 5, is bolted to the support bar 2. Depending on the type of machine or type of tool, the support bar 3 can be set at the same height that the grab bar 2 or with an offset of a few millimeters to a few tens of millimeters in height, which exactly corresponds to the offset the front edges of the ejector plate and the central board in the ejection station, when set to the first thread.

La barre d'appui 3 porte deux plots 6 et 7, muni chacun d'une encoche dont la taille est exactement adaptée à recevoir respectivement la butée de centrage de la plaque porte-outils (non visible sur la figure 1) et celle, 8 de la planche centrale d'éjection. Les encoches des plots 6 et 7 sont alignées dans un plan perpendiculaire à la barre d'appui 3. Le plot 6 peut s'engager dans un évidement correspondant 9 de la barre d'appui 2.The support bar 3 carries two studs 6 and 7, each provided with a notch whose size is exactly adapted to receive respectively the centering stop of the tool plate (not visible in figure 1) and that, 8 of the central ejection board. The notches of pads 6 and 7 are aligned in a plane perpendicular to the support bar 3. The stud 6 can engage in a corresponding recess 9 in the support bar 2.

Sur la barre d'appui 2 est monté un portique intérieur, dont un seul des montants 10 est représenté sur la figure 1. Il comporte un système de rails, câbles, poulies et contrepoids, en soi connu, qui permet te coulissement dans le sens vertical d'un chariot 11. Le chariot 11 porte un loquet central 12 qui vient en prise avec le rebord postérieur de la forme supérieure d'éjection 4. Le coulissement vertical du chariot 11 permet de saisir et de maintenir des formes supérieures d'éjection de dimensions longitudinales variables. La distance maximum du loquet par rapport à la barre d'appui 2 est supérieure à la longueur du format maximum de feuille acceptable par la presse de façonnage. La longueur des barres d'appui 2 et 3 est supérieure à la largeur du format maximum de feuille acceptable par la presse de façonnage.On the support bar 2 is mounted an interior gantry, of which only one uprights 10 is shown in FIG. 1. It includes a rail system, cables, pulleys and counterweights, known per se, which allow you to slide in the vertical direction of a carriage 11. The carriage 11 carries a central latch 12 which engages with the posterior rim of the upper ejection form 4. The vertical sliding of the carriage 11 makes it possible to grasp and maintain shapes upper ejectors of variable longitudinal dimensions. The distance maximum of the latch relative to the grab bar 2 is greater than the length of the maximum sheet format acceptable by the shaping press. The length of the grab bars 2 and 3 is greater than the width of the format maximum sheet acceptable by the shaping press.

Le bâti 1 porte un bras pivotant 13, pivotant dans un plan vertical parallèle à la barre d'appui 3, et donc à la planche centrale d'éjection 5. L'axe de pivotement 14 du bras 13 est situé à une hauteur par rapport aux barres d'appui 2 et 3, qui est supérieure au plus grand format d'outil supérieur d'éjection et de planche d'éjection. L'extrémité libre du bras 13 porte un doigt presseur 15. Un ressort monté entre la tête d'appui télescopique du doigt presseur 15 et le bras 13 tend à exercer une force pressante contre la planche centrale d'éjection 5 et à la maintenir plaquée contre la plaque porte-éjecteurs 4.The frame 1 carries a pivoting arm 13, pivoting in a vertical plane parallel to the support bar 3, and therefore to the central ejection board 5. The axis pivot 14 of arm 13 is located at a height from the bars support 2 and 3, which is larger than the largest size of upper tool and ejection board. The free end of the arm 13 carries a finger presser 15. A spring mounted between the telescopic finger support head presser 15 and arm 13 tends to exert a pressing force against the board ejection unit 5 and keep it pressed against the ejector plate 4.

Le bâti 1 supporte sur un de ses côtés, un axe de rotation 19 vertical, sur lequel est monté un cadre 16, par l'intermédiaire de pièces d'espacement 20. A cause du poids du cadre 16, celui-ci est monté, de l'autre côté du bâti 1, sur un pied 17 lui-même monté sur roulettes. Du même côté que le pied 17, le cadre 16 porte des tiges d'espacement 18.The frame 1 supports on one of its sides, an axis of rotation 19 vertical, on which a frame 16 is mounted, by means of parts spacing 20. Because of the weight of the frame 16, it is mounted, on the other side of the frame 1, on a foot 17 itself mounted on casters. On the same side as the foot 17, the frame 16 carries spacing rods 18.

Le cadre 16 est la réplique du cadre-tiroir de la station d'éjection, qui est prévu pour porter, par l'intermédiaire de barres porte-outils réglables, les aiguilles inférieures d'éjection. Le cadre 16 porte les mêmes organes de fixation 21,22 pour barres réglables, dans le même agencement et avec la même indexation, à l'aide de numéros, que le cadre-tiroir. De cette façon, une barre réglable, ou un ensemble de barres réglables solidarisées par une traverse et formant un sous-cadre, peut être transportée du cadre-tiroir de la station d'éjection à la table de réglage et vice-versa, sans erreur de replacement.Frame 16 is the replica of the drawer-frame of the ejection station, which is designed to carry, by means of adjustable tool bars, the lower ejection needles. The frame 16 carries the same organs of fixing 21,22 for adjustable bars, in the same arrangement and with the same indexing, using numbers, as the drawer frame. In this way, a adjustable bar, or a set of adjustable bars secured by a cross member and forming a sub-frame, can be transported from the drawer-frame of the ejection station at the adjustment table and vice versa, without error of replacement.

Quand le cadre 16 vient pivoter en direction des barres d'appui 2 et 3, les tiges d'espacement 18 viennent en butée contre une partie correspondante du bâti 1. L'ensemble formé par les pièces d'espacement 20 et les tiges d'espacement 18 est ajusté de telle sorte que, dans cette position en butée, le cadre 16 est parallèle aux barres d'appui 2 et 3 et s'en trouve à une distance telle que, lorsque la planche d'éjection 5 et une barre réglable sont mises en place dans la table de réglage, elles se trouvent à une distance l'une de l'autre qui est égale à la distance qui les sépare dans la station d'éjection en position haute du cadre-tiroir, augmentée d'une longueur légèrement supérieure à l'épaisseur de la planche. When the frame 16 pivots towards the support bars 2 and 3, the spacing rods 18 abut against a part corresponding to the frame 1. The assembly formed by the spacers 20 and the spacer rods 18 is adjusted so that in this position in stop, the frame 16 is parallel to the support bars 2 and 3 and is located at a distance such that when the ejection board 5 and an adjustable bar are placed in the adjustment table, they are at a distance one on the other which is equal to the distance between them in the ejection station in upper position of the drawer frame, slightly increased in length greater than the thickness of the board.

Le procédé selon l'invention va maintenant être décrit à l'aide de trois exemples de préparation d'outils d'éjection.The process according to the invention will now be described using three examples of preparing ejection tools.

Exemple 1 : Préparation d'une forme supérieure d'éjection Example 1 : Preparation of a superior form of ejection

La plaque porte-outils, représentée à la figure 2, est similaire à la plaque de l'outil supérieur mobile de séparation de poses décrit dans le brevet CH-682651. Il s'agit d'une plaque en bois constituée d'un cadre rectangulaire 41 de 1,6 x 1,1 x 0,02 m, dont les côtés sont reliés par une pluralité de croisillons 42, pour former une plaque plane ajourée. La face des croisillons destinée à venir en regard de la feuille de carton et de la planche centrale d'éjection est recouverte, par exemple par collage, d'une couche de fibres accrochantes de type velcro. Les ouvertures 44 entre croisillons perpendiculaires sont des trous carrés ou rectangulaires avec des côtés de l'ordre de 30 à 40 millimètres. Le côté antérieur du cadre 41 porte une butée de centrage proéminente 43.The tool plate, shown in Figure 2, is similar to the plate of the movable upper separation device described in the patent CH-682651. It is a wooden plate made up of a rectangular frame 41 of 1.6 x 1.1 x 0.02 m, the sides of which are connected by a plurality of cross-pieces 42, to form a perforated flat plate. The face of the braces intended to come next to the cardboard sheet and the central board ejection is covered, for example by gluing, with a layer of fibers hanging Velcro type. The openings 44 between braces perpendicular are square or rectangular holes with sides of around 30 to 40 millimeters. The front side of the frame 41 carries a stop of prominent centering 43.

Les éjecteurs sont des plots de formes diverses, notamment cylindriques, prismatiques ou rectangulaires. Le plot 100, représenté en coupe sur la figure 3, comprend une base 101 constituée d'une plaquette de base métallique recouverte, par collage sur sa face destinée à venir en contact avec la plaque porte-éjecteurs, d'une couche 102 de fibres accrochantes de type "velcro", apte à fixer le plot à la plaque porte-éjecteurs. Sur la figure 3, la couche de fibres 102 est discontinue, formée de deux bandes, pour faciliter l'accrochage. L'autre face de la plaquette métallique est garnie d'un bloc de mousse résiliente 103, par exemple en PVC ou en PU, choisie de façon à être capable de détacher le déchet de la feuille en s'écrasant légèrement, puis de reprendre sa forme initiale un grand nombre de fois. La surface de la plaquette formant la base 101 est choisie de manière à pouvoir être fixée sur la plaque porte-éjecteurs sans porte à faux malgré les ouvertures entre les croisillons. Si les ouvertures de la plaque porte-éjecteurs sont des carrés de l'ordre de 40 x 40 millimètres, l'éjecteur peut, par exemple, avoir une surface de base rectangulaire de 75 x 30 millimètres ou une surface circulaire de 50 millimètres de diamètre. L'éjecteur peut également être constitué d'un bloc de bois.The ejectors are studs of various shapes, in particular cylindrical, prismatic or rectangular. The stud 100, shown in section in Figure 3, includes a base 101 consisting of a base plate covered metal, by gluing on its face intended to come into contact with the ejector plate, of a layer 102 of hanging fibers of the type "velcro", suitable for fixing the stud to the ejector plate. In Figure 3, the fiber layer 102 is discontinuous, formed of two strips, to facilitate the hanging. The other side of the metal plate is lined with a block of resilient foam 103, for example PVC or PU, chosen to be able to detach the waste from the sheet by slightly crushing, then return to its original form a large number of times. The surface of the wafer forming the base 101 is chosen so that it can be fixed on the plate ejector holder without overhang despite the openings between the crossbars. Yes the openings of the ejector plate are squares of the order of 40 x 40 millimeters, the ejector can, for example, have a base surface 75 x 30 mm rectangular or 50 mm circular surface of diameter. The ejector can also consist of a block of wood.

La plaque porte-éjecteurs 40 est posée sur la barre d'appui 2, avec sa butée de centrage 43 engagée dans l'encoche du plot de centrage 6, et la face garnie de velcro vers l'avant de la table de réglage. Le loquet 12 vient maintenir le bord de la plaque 40. La planche centrale d'éjection 5, préfabriquée, est placée sur la barre d'appui 3, et sa butée de centrage 8 engagée dans l'encoche du plot de centrage 7. Le bras pivotant 13 est abaissé en tirant sur l'extrémité du doigt presseur 15, puis relâché, de sorte que la planche centrale d'éjection 5 vient se plaquer contre la surface en "velcro" de la plaque porte-éjecteurs 40, en laissant dégagées les surfaces de la plaque porte-éjecteurs qui correspondent aux déchets de découpe. Les plots éjecteurs 100 sont appliqués par l'opérateur, "velcro contre velcro", en suivant le pourtour des ajours de la planche centrale d'éjection 5, et en laissant un espace de l'ordre de 3-4 mm.The ejector plate 40 is placed on the support bar 2, with its centering stop 43 engaged in the notch of the centering stud 6, and the Velcro side facing the front of the adjustment table. The latch 12 comes maintain the edge of the plate 40. The central ejection board 5, prefabricated, is placed on the support bar 3, and its centering stop 8 engaged in the notch of the centering stud 7. The pivoting arm 13 is lowered by pulling on the end of the presser finger 15, then released, so that the central ejection board 5 is pressed against the "velcro" surface of the ejector support plate 40, leaving the surfaces of the plate free ejector holders which correspond to cutting waste. Ejector pads 100 are applied by the operator, "velcro contre velcro", following the perimeter openings of the central ejection board 5, and leaving a space of in the order of 3-4 mm.

Après que la planche centrale d'éjection a été retirée de la table, la plaque porte-éjecteurs peut encore recevoir, en dehors des zones correspondant aux ajours de la planche d'éjection, des blocs d'appui, dont la structure est semblable à celle de l'éjecteur 100, hormis le fait que la mousse utilisée est une mousse molle, qui s'écrase lorsque la forme supérieure d'éjection vient en contact avec la feuille de carton, pour reprendre sa forme lorsque la forme d'éjection remonte. Ces blocs d'appui contribuent à maintenir la feuille de carton sur la planche centrale d'éjection pendant la phase d'éjection.After the central ejection board has been removed from the table, the ejector holder plate can still receive outside areas corresponding to the openings of the ejection board, of the support blocks, the structure is similar to that of the ejector 100, except that the foam used is a soft foam, which crashes when the upper shape ejection comes into contact with the cardboard sheet, to resume its shape when the form of ejection rises. These support blocks help maintain the cardboard sheet on the central ejection board during the phase ejection.

La forme supérieure d'éjection ainsi préparée permet de traiter la majorité des travaux de découpe de feuilles en poses, pour la réalisation d'emballages en carton, qui ne comportent pas de déchets de petite dimension.The superior form of ejection thus prepared makes it possible to treat the most of the work of cutting sheets into poses, for the realization cardboard packaging, which does not contain small waste.

Exemple 2 : Préparation d'un outil supérieur d'éjection dans le cas de déchets de petites dimensions Example 2 : Preparation of an upper ejection tool in the case of small waste

La plaque porte-éjecteurs est constituée d'une paire de tôles métalliques perforées montées sur un cadre, telles que décrites dans la demande de brevet CH 1417/99. La plaque est mise en place sur la barre d'appui 2 de la table de réglage, et la butée de centrage en machine de la plaque porte-éjecteurs est engagée dans l'encoche du plot de centrage 6.The ejector plate consists of a pair of sheets perforated metal mounted on a frame, as described in the Patent application CH 1417/99. The plate is placed on the bar support 2 of the adjustment table, and the machine centering stop of the ejector holder plate is engaged in the notch of the centering pin 6.

Le chariot mobile 11 est abaissé de sorte que le loquet 12 vient en prise avec le bord supérieur de la plaque porte-éjecteurs. La planche centrale d'éjection 5 est mise en place de la même manière que dans l'exemple 1. La mise en place des éjecteurs sous forme de plots à base magnétique se fait de la même manière que dans l'exemple 1. Pour la mise en place des aiguilles en forme de U, l'opérateur passe de l'autre côté de la table de réglage, d'où il distingue parfaitement les ajours de la planche centrale d'éjection, à travers la multitude de trous des plaques perforées. The movable carriage 11 is lowered so that the latch 12 comes into taken with the upper edge of the ejector plate. The central board ejection 5 is set up in the same way as in Example 1. The installation of ejectors in the form of studs with a magnetic base is done the same way as in Example 1. For the placement of the needles U-shaped, the operator goes to the other side of the adjustment table, from where he perfectly distinguishes the openings of the central ejection board, through the multitude of holes in the perforated plates.

Après la mise en place des éjecteurs, la planche centrale d'éjection est retirée de la table. La forme supérieure d'éjection peut encore recevoir des blocs d'appui de mousse molle, munis d'une base magnétique.After installing the ejectors, the central ejection board is removed from the table. The upper form of ejection can still receive soft foam support blocks, provided with a magnetic base.

Exemple 3 : Préparation d'un outil d'éjection à pincement Example 3 : Preparation of a pinch ejection tool

La préparation de la forme supérieure d'éjection se fait comme dans l'exemple 2. L'opérateur a devant lui la planche d'éjection et, dépassant des ajours de la planche, l'ensemble des aiguilles et des plots éjecteurs. Il est à même de juger quels déchets risquent de ne pas se détacher totalement et de provoquer un risque de bourrage. Il place verticalement des barres porte-aiguilles télescopiques sur les organes de fixation indexés 22 appropriés du cadre 16 et sur une barre transversale, elle-même fixée aux organes de fixation 21, et y fixe approximativement les aiguilles télescopiques. Le cadre 16 est amené dans sa position d'ajustement et la position des aiguilles télescopiques dans un plan parallèle à la planche centrale d'éjection est ajustée de telle sorte que la pointe libre de l'aiguille télescopique vienne exactement au droit d'une aiguille supérieure d'éjection ou d'une zone choisie d'un plot éjecteur. La hauteur de l'aiguille télescopique de pincement, selon un axe perpendiculaire à ce plan, est ensuite ajustée de façon qu'au repos elle vienne appuyer légèrement, ou en s'enfonçant d'environ 1 à 2 millimètres, contre la tête de l'éjecteur. Une fois l'ensemble des aiguilles télescopiques de pincement mises en place et réglées, le cadre 16 est ramené en arrière et les barres réglables sont mises en place dans le cadre-tiroir de la station d'éjection en respectant l'indexation des organes de fixation. La planche centrale d'éjection est ensuite retirée, mise en place dans la station d'éjection profilée de serrage 23. La forme supérieure d'éjection reçoit éventuellement des blocs d'appui et, enfin, cette forme supérieure d'éjection est mise en place dans la station d'éjection et fixée à l'aide des profilés de serrage 23.The preparation of the upper form of ejection is done as in example 2. The operator has in front of him the ejection board and, going beyond openings in the board, all needles and ejector pads. He is at even judge what waste may not come off completely and cause a risk of jamming. It places needle bars vertically telescopic on the appropriate indexed fasteners 22 of the frame 16 and on a crossbar, itself fixed to the fixing members 21, and approximately fixes the telescopic needles there. Frame 16 is brought into its adjustment position and the position of the telescopic needles in a plane parallel to the central ejection board is adjusted so that the free point of the telescopic needle comes exactly to the right of a upper ejection needle or a selected area of an ejector pad. The height of the telescopic pinching needle, along an axis perpendicular to this plane, is then adjusted so that at rest it comes to press slightly, or by sinking about 1 to 2 millimeters, against the head of the ejector. Once all the telescopic pinching needles have been put in place and adjusted, the frame 16 is brought back and the bars adjustable are placed in the drawer frame of the ejection station, respecting indexing the fasteners. The central ejection board is then removed, placed in the clamping profile ejection station 23. The upper form of ejection possibly receives support blocks and, finally, this upper form of ejection is implemented in the ejection station and fixed using clamping profiles 23.

Claims (21)

Procédé pour préparer un système d'outils de façonnage d'une station d'éjection d'une presse de façonnage, le dit système d'outils de façonnage comprenant au moins une planche centrale d'éjection (5) et une forme supérieure d'éjection avec une plaque porte-éjecteurs (4, 40), caractérisée par les étapes suivantes : la planche centrale d'éjection (5) et la plaque porte-éjecteurs (4, 40) sont disposées face à face à l'extérieur de la presse de façonnage et fixées dans une position de réglage, les éjecteurs (100) sont fixés sur la plaque porte-éjecteurs (4,40) au droit des ajours de la planche centrale d'éjection, pour constituer la forme supérieure d'éjection, la forme supérieure d'éjection et la planche centrale d'éjection (5) sont placées et centrées dans la station d'éjection. Method for preparing a system of shaping tools for an ejection station of a shaping press, the said shaping tool system comprising at least one central ejection board (5) and a top form of ejection with an ejector plate (4, 40), characterized by the following steps: the central ejection board (5) and the ejector support plate (4, 40) are arranged face to face outside the shaping press and fixed in an adjustment position, the ejectors (100) are fixed to the ejector support plate (4.40) in line with the openings of the central ejection board, to constitute the upper form of ejection, the upper ejection form and the central ejection board (5) are placed and centered in the ejection station. Procédé selon la revendication 1, caractérisé en ce que dans la dite position de réglage, la plaque porte-éjecteurs (4, 40) et la planche centrale d'éjection (5) se trouvent dans les mêmes positions relatives, vues en projection sur un plan parallèle à la planche centrale d'éjection, que celles qu'elles viennent occuper dans la station d'éjection lors du centrage latéral par rapport à l'axe machine et lors du réglage longitudinal au premier filet.Method according to claim 1, characterized in that in the said adjustment position, the ejector plate (4, 40) and the central board ejection (5) are in the same relative positions, seen in projection on a plane parallel to the central ejection board, than those that they come to occupy in the ejection station during lateral centering by in relation to the machine axis and during the longitudinal adjustment to the first thread. Procédé selon l'une des revendications 1 ou 2, caractérisé en ce que la planche centrale d'éjection (5) et la plaque porte-éjecteurs (4, 40) sont au contact l'une de l'autre dans la dite position de réglage.Method according to one of claims 1 or 2, characterized in that that the central ejection board (5) and the ejector plate (4, 40) are in contact with each other in said adjustment position. Procédé selon l'une des revendications 1 à 3, caractérisé en ce que la dite position de réglage est obtenue par positionnement des bords antérieurs de la planche centrale d'éjection (5) et de la plaque porte-éjecteurs (4, 40) contre des surfaces d'appui et par positionnement des moyens de centrage en machine de la plaque porte-éjecteurs et de la planche centrale d'éjection avec des moyens de centrage conjugués solidaires des dites surfaces d'appui.Method according to one of Claims 1 to 3, characterized in that that said adjustment position is obtained by positioning the edges front of the central ejection board (5) and the ejector plate (4, 40) against bearing surfaces and by positioning of the means of machine centering of the ejector plate and the central board ejection with combined centering means integral with said bearing surfaces. Procédé selon l'une des revendications précédentes, caractérisé en ce que la dite plaque porte-éjecteurs (40) présente une pluralité d'ouvertures destinées au passage de l'air, la face de la plaque porte-éjecteurs faisant face à la planche centrale d'éjection (5) est recouverte au moins partiellement d'une première couche de fibres accrochantes, la base (101) de chaque éjecteur (100) est recouverte au moins partiellement d'une seconde couche (102) de fibres accrochantes conjuguées, aptes à coopérer avec les fibres accrochantes de la dite première couche de fibres, pour assurer la fixation de l'éjecteur (100) à la plaque porte-éjecteurs (40), et en ce que ladite fixation de l'éjecteur (100) est effectuée au travers des ajours de la planche centrale d'éjection (5), les bords des ajours servant de repères.Method according to one of the preceding claims, characterized in that said ejector plate (40) has a plurality openings for the passage of air, the face of the ejector plate facing the central ejection board (5) is covered at least partially of a first layer of hanging fibers, the base (101) of each ejector (100) is at least partially covered by a second layer (102) of conjugated hanging fibers capable of cooperating with the hanging fibers of said first layer of fibers, to ensure the fixing the ejector (100) to the ejector plate (40), and in that said fixing of the ejector (100) is carried out through the openings of the board central ejection (5), the edges of the openings serving as benchmarks. Procédé selon la revendication 5, caractérisé en ce que la tête du dit éjecteur (100) est constituée d'un plot de mousse (103) résiliente.Method according to claim 5, characterized in that the head of said ejector (100) consists of a pad of resilient foam (103). Procédé selon l'une des revendications précédentes, pour préparer un système d'outils qui comprend de plus un outil inférieur d'éjection à pincement, constitué d'une pluralité d'outils de pincement et d'au moins un porte-outils de pincement, caractérisé en ce que le dit porte-outils de pincement est amené dans une position d'ajustement, au droit de la planche centrale d'éjection (5) fixée dans la dite position de réglage, la dite positon d'ajustement étant la même position relative, vue en projection sur un plan parallèle à la planche centrale d'éjection et par rapport à la dite planche centrale d'éjection, que celle que le dit porte-outils de pincement occupe dans la station d'éjection.Method according to one of the preceding claims, for prepare a tool system which further includes a lower ejection tool to nipping, consisting of a plurality of nipping tools and at least one pinch tool holder, characterized in that said tool holder pinch is brought into an adjustment position, in line with the board ejection unit (5) fixed in said adjustment position, said position adjustment being the same relative position, seen in projection on a plane parallel to the central ejection board and with respect to said board central ejection, that that said pinch tool holder occupies in the ejection station. Procédé selon la revendication 7, les dits outils de pincement étant des aiguilles télescopiques, caractérisé en ce que les positions des pointes libres des dites aiguilles sont ajustées au contact des dits éjecteurs.Method according to claim 7, said pinching tools being telescopic needles, characterized in that the positions of the free tips of said needles are adjusted in contact with said ejectors. Table de réglage pour la mise en oeuvre d'un procédé selon l'une quelconque des revendications 1 à 8, comprenant un bâti (1), portant des moyens de support et des moyens de fixation de plaque porte-éjecteurs des moyens de support de planche centrale d'éjection pour tenir une planche centrale d'éjection (5) au contact ou à proximité d'une plaque porte-éjecteurs (4, 40) et des moyens de fixation de planche centrale d'éjection, choisis de façon à fixer la planche centrale d'éjection (5) dans la dite position de réglage. Adjustment table for implementing a method according to any one of Claims 1 to 8, comprising a frame (1), bearing support means and means for fixing the ejector plate central ejection board support means for holding a central ejection board (5) in contact with or close to an ejector plate (4, 40) and means for fixing the central ejection board, chosen so as to fix the central ejection board (5) in said adjustment position. Table selon la revendication 9, caractérisée en ce que les dits moyens de support de planche centrale d'éjection et de plaque porte-éjecteurs comprennent deux barres d'appui (2, 3) parallèles pour les bords antérieurs de la plaque porte-éjecteurs (4, 40) et de la planche centrale d'éjection (5), les deux dites barres d'appui (2, 3) étant calées l'une par rapport à l'autre de telle sorte à reproduire le réglage longitudinal au premier filet de la presse de façonnage.Table according to claim 9, characterized in that the said support means for central ejection board and ejector plate include two parallel grab bars (2, 3) for the front edges of the ejector plate (4, 40) and the central ejection board (5), the two said grab bars (2, 3) being wedged relative to each other of such so as to reproduce the longitudinal adjustment at the first thread of the press shaping. Table selon l'une des revendications 9 ou 10, caractérisée en ce que la forme supérieure d'éjection et la planche centrale d'éjection (5) y sont maintenues en position verticale, toutes leurs parties se trouvant à portée de main d'un opérateur.Table according to one of claims 9 or 10, characterized in the upper ejection form and the central ejection board (5) are there kept in an upright position, all their parts within reach of hand of an operator. Table selon l'une des revendications 9 à 11, caractérisée en ce que les dits moyens de fixation de planche centrale d'éjection d'une part, et de plaque porte-éjecteurs d'autre part, comprennent deux plots de réglage (6, 7) fixes, présentant chacun une encoche ou glissière adaptée à recevoir les butées de centrage (8, 43) sur l'axe machine respectives de la planche centrale d'éjection (5) et de la plaque porte-éjecteurs (4, 40), les deux encoches ou glissières étant centrées dans un même plan perpendiculaire au plan de la planche centrale d'éjection (5), et perpendiculaire au plan d'appui d'une barre d'appui (2, 3).Table according to one of claims 9 to 11, characterized in that that the said means for fixing the central ejection board on the one hand, and ejector plate on the other hand, include two adjustment pads (6, 7) fixed, each having a notch or slide adapted to receive the centering stops (8, 43) on the respective machine axis of the central board ejector (5) and the ejector plate (4, 40), the two notches or slides being centered in the same plane perpendicular to the plane of the central ejection board (5), and perpendicular to the support plane of a bar support (2, 3). Table selon l'une des revendications 9 à 12, caractérisée en ce que les moyens de fixation de plaque porte-éjecteurs comprennent également un loquet (12) agencé sur le dit bâti (1), de façon à pouvoir venir en prise avec le bord postérieur de la plaque porte-éjecteurs (4, 40).Table according to one of Claims 9 to 12, characterized in that that the means for fixing the ejector plate also comprise a latch (12) arranged on said frame (1), so as to be able to come into engagement with the rear edge of the ejector plate (4, 40). Table selon la revendication 13, caractérisée en ce que le dit loquet (12) est monté sur un chariot mobile (11), coulissant sur le dit bâti (1) dans la direction de la table correspondant à l'axe machine.Table according to claim 13, characterized in that the said latch (12) is mounted on a mobile carriage (11), sliding on said frame (1) in the direction of the table corresponding to the machine axis. Table selon l'une des revendications 9 à 14, caractérisée en ce que les moyens de support de planche centrale d'éjection comprennent également un bras (13) pivotant dans un plan parallèle au plan de la planche centrale d'éjection (5), dont l'axe de pivotement (14) est agencé au-dessus des barres d'appui (2, 3) et à une distance supérieure au format longitudinal maximum de la planche centrale d'éjection.Table according to one of claims 9 to 14, characterized in that that the central ejection board support means comprise also an arm (13) pivoting in a plane parallel to the plane of the board ejection unit (5), the pivot axis (14) of which is arranged above the grab bars (2, 3) and at a distance greater than the longitudinal format maximum of the central ejection board. Table selon la revendication 15, caractérisée en ce que le bras (13) pivotant porte à son extrémité libre un doigt presseur (15), équipé d'un système de rappel à ressort, dont la force pressante maintient la planche centrale d'éjection (5) contre la plaque porte-éjecteurs (4, 40).Table according to claim 15, characterized in that the arm (13) pivoting carries at its free end a pressing finger (15), equipped with a spring return system, the pressing force of which keeps the board ejection unit (5) against the ejector plate (4, 40). Table selon l'une des revendications 9 à 16, caractérisée en ce que le dit bâti (1) porte un moyen de support pour porte-outils de pincement, mobile entre la dite position d'ajustement et une position permettant le libre accès d'un opérateur à la planche centrale d'éjection. Table according to one of Claims 9 to 16, characterized in that that said frame (1) carries a support means for pinching tool holders, movable between said adjustment position and a position allowing free operator access to the central ejection board. Table selon la revendication 17, pour la mise en oeuvre d'un procédé selon la revendication 8, les dites aiguilles télescopiques étant destinées à être portées par des barres réglables dans un cadre-tiroir de la station d'éjection, le dit cadre-tiroir comportant une pluralité d'organes de fixation de barres en agencement indexé, caractérisé en ce que le dit moyen de support pour porte-outils de pincement est un cadre (16) pivotant, dont l'axe de pivotement (19) est situé sur le dit bâti (1) de la table de réglage, et qui comporte une même pluralité d'organes de fixation (21, 22) de barres dans le même agencement indexé.Table according to claim 17, for the implementation of a method according to claim 8, said telescopic needles being intended to be carried by adjustable bars in a drawer frame of the ejection station, the said drawer frame comprising a plurality of fixing bars in indexed arrangement, characterized in that said means support for pinching tool holder is a pivoting frame (16), the axis of which pivot (19) is located on said frame (1) of the adjustment table, and which comprises a same plurality of fasteners (21, 22) of bars in the same indexed arrangement. Ensemble d'éléments comprenant au moins une plaque porte-éjecteurs et un jeu d'éjecteurs, pour préparer une forme supérieure d'éjection par un procédé selon la revendication 1, caractérisé en ce que la plaque porte-éjecteurs (40) présente une pluralité d'ouvertures (44), une face de la dite plaque est recouverte au moins partiellement d'une première couche de fibres accrochantes, la base (101) de chaque éjecteur (100) est recouverte au moins partiellement d'une seconde couche (102) de fibres accrochantes conjuguées, aptes à coopérer avec les fibres accrochantes de la dite première couche de fibres.Set of elements comprising at least one ejector plate and a set of ejectors, to prepare a superior form of ejection by a method according to claim 1, characterized in that the ejector plate (40) has a plurality of openings (44), one side of said plate is covered at least partially with a first layer of fibers hanging, the base (101) of each ejector (100) is covered at least partially of a second layer (102) of hooked conjugate fibers, able to cooperate with the hanging fibers of said first layer of fibers. Ensemble selon la revendication 19, caractérisé en ce que la dite base (101) d'au moins une partie des éjecteurs (100) porte un bloc (103) de mousse résiliente.Assembly according to claim 19, characterized in that the said base (101) of at least part of the ejectors (100) carries a block (103) resilient foam. Ensemble selon l'une des revendications 19, 20 comprenant de plus un jeu de blocs d'appui constitués de blocs de mousse molle portés par une base, la dite base portant sur son autre face une dite seconde couche de fibres accrochantes conjuguées.Assembly according to one of claims 19, 20 comprising plus a set of support blocks made up of soft foam blocks carried by a base, the said base carrying on its other face a so-called second layer of hooked fibers conjugated.
EP00122677A 1999-10-26 2000-10-18 Method for preparing a system composed of shaping tools, an adjustment rig for carrying out the method and a system of elements for preparing the upper part of a stripping tool Withdrawn EP1095745A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH01949/99A CH693787A5 (en) 1999-10-26 1999-10-26 A process for preparing a shaping tools system, setting table for implementing this method and set of elements to prepare a higher form ejection.
CH194999 1999-10-26

Publications (2)

Publication Number Publication Date
EP1095745A2 true EP1095745A2 (en) 2001-05-02
EP1095745A3 EP1095745A3 (en) 2005-04-27

Family

ID=4222367

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00122677A Withdrawn EP1095745A3 (en) 1999-10-26 2000-10-18 Method for preparing a system composed of shaping tools, an adjustment rig for carrying out the method and a system of elements for preparing the upper part of a stripping tool

Country Status (9)

Country Link
US (2) US6598284B1 (en)
EP (1) EP1095745A3 (en)
JP (1) JP2001121486A (en)
KR (1) KR100472116B1 (en)
CN (1) CN1201905C (en)
AU (1) AU778195B2 (en)
CA (1) CA2324181C (en)
CH (1) CH693787A5 (en)
TW (1) TW504440B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104241177A (en) * 2013-06-08 2014-12-24 常州广达电子有限公司 Full-automatic diode carding machine

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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.
US20050274247A1 (en) * 2004-06-14 2005-12-15 Sean Talkington Stripper apparatus and methods for rotary dies
US7401061B2 (en) * 2005-06-14 2008-07-15 Lehman Brothers Inc. Attribute engine
USD828421S1 (en) * 2016-12-08 2018-09-11 Carlton C. Musser Vertical seam welder component
CN113303621B (en) * 2021-07-07 2023-05-09 海宁智盛自动化设备有限公司 Pull buckle assembly for sofa and assembly method thereof
CN114393548B (en) * 2022-01-27 2024-05-24 重庆佳利乐包装有限公司 Quick production method of environment-friendly tray

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5217423A (en) 1990-04-26 1993-06-08 Bobst Sa Method for the preparation of blank separating tools
CH682651A5 (en) 1990-04-12 1993-10-29 Bobst Sa movable upper tool blanking in a machine for producing packaging.
CH693502A5 (en) 1999-08-02 2003-09-15 Bobst Sa universal ejection tool.

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3150550A (en) * 1961-03-28 1964-09-29 Temple Ind Inc Rule die and punch unit and method of resetting the same
US3249272A (en) * 1964-08-13 1966-05-03 Arkay Packaging Corp Method and apparatus for stripping waste from a die cut sheet
GB1122292A (en) * 1965-08-19 1968-08-07 William Crosland Ltd A setting device for press stripper mechanisms
IT1023941B (en) * 1974-03-07 1978-05-30 Bobst Fils Sa J DEVICE FOR EXPULSES AND CUTS OF A SHEET CUT BY MEANS OF A PLATE PRESS
CH617886A5 (en) * 1977-05-26 1980-06-30 Bobst Fils Sa J
US4371369A (en) * 1980-04-25 1983-02-01 Franklin Corrugated Design, Inc. Automatic register system for die cutting operations
US4452595A (en) * 1982-01-18 1984-06-05 Federal Paper Board Company, Inc. Stripper apparatus for paperboard blanks
CH646895A5 (en) * 1982-05-18 1984-12-28 Bobst Sa DEVICE FOR MAKING THE DIES OF A PLATE PRESS.
JPH0790514B2 (en) * 1989-02-20 1995-10-04 日本ダイスチール株式会社 Wooden mold used for punching equipment
CH681874A5 (en) * 1990-04-10 1993-06-15 Bobst Sa
CH684187A5 (en) * 1990-04-26 1994-07-29 Bobst Sa movable upper tool for a waste stripping station in a cutting machine of sheets for the production of packaging.
US5341558A (en) 1991-04-10 1994-08-30 Bobst Sa Method of assembling a movable upper tool for separating blanks
JPH0796276B2 (en) * 1993-02-15 1995-10-18 共益工業株式会社 Pinboard type board cutting machine
ES2103594T3 (en) * 1993-05-15 1997-09-16 Emrich Dirk DEVICE, TIGHTENING TOOL AND PROCEDURE FOR THE SEPARATION OF REMAINS OF CUTS IN CARTON DIE-CUTTING.
US5881620A (en) * 1993-10-07 1999-03-16 Container Graphics Corporation Apparatus for ejecting cut corrugated board from a cutting die
CH689974A5 (en) * 1994-05-13 2000-02-29 Bobst Sa ejection station of waste in a plate member cutting machine.
CH690027A5 (en) * 1994-07-14 2000-03-31 Bobst Sa movable upper tool for the separation of blanks from a sheet worked with a press for manufacturing packages.
CH691035A5 (en) * 1995-04-18 2001-04-12 Bobst Sa Tool for machine cutting of plate members, and associated equipment.
CH690844A5 (en) * 1995-08-04 2001-02-15 Bobst Sa blank separating equipment within a machine for cutting plate-like workpieces.
CA2259785C (en) * 1999-01-19 2008-07-29 Peter E. Sandford Jogger member, system and method for mounting jogger members and female and male blanking dies provided therewith
CA2286981C (en) * 1999-10-20 2008-03-18 Peter E. Sandford Methods for erection of female blanking die and universal press frames for use in such methods
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.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH682651A5 (en) 1990-04-12 1993-10-29 Bobst Sa movable upper tool blanking in a machine for producing packaging.
US5217423A (en) 1990-04-26 1993-06-08 Bobst Sa Method for the preparation of blank separating tools
CH693502A5 (en) 1999-08-02 2003-09-15 Bobst Sa universal ejection tool.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104241177A (en) * 2013-06-08 2014-12-24 常州广达电子有限公司 Full-automatic diode carding machine
CN104241177B (en) * 2013-06-08 2016-12-28 常州广达电子有限公司 A kind of fully-automatic diode combing machine

Also Published As

Publication number Publication date
CA2324181A1 (en) 2001-04-26
KR20010060175A (en) 2001-07-06
EP1095745A3 (en) 2005-04-27
AU778195B2 (en) 2004-11-18
US6598284B1 (en) 2003-07-29
CN1304824A (en) 2001-07-25
CA2324181C (en) 2004-08-10
JP2001121486A (en) 2001-05-08
CN1201905C (en) 2005-05-18
KR100472116B1 (en) 2005-03-07
AU6660000A (en) 2001-05-03
US20020124372A1 (en) 2002-09-12
US6691395B2 (en) 2004-02-17
CH693787A5 (en) 2004-02-13
TW504440B (en) 2002-10-01

Similar Documents

Publication Publication Date Title
EP0738567A2 (en) Tools for a machine for cutting sheet elements, and associated equipment
EP0683003B1 (en) Positioning and blocking device for tool carrier in a cutting apparatus
EP2429781B1 (en) Waste ejection unit with easy tool changing for a packaging production machine
EP0666234B1 (en) Piling, separation and evacuation station for batches of flat articles delivered from a processing unit
FR2538685A1 (en) METHOD AND APPARATUS FOR FORMING BOSS PARTS
FR2591931A1 (en) PIECE SUPPORT BENCH FOR A LASER CUTTING MACHINE
FR2546087A1 (en) MULTIPLE PROCESSING MACHINE OF PIECES OF THE TOLE TYPE
FR2672841A1 (en) KNIFE GUARD DEVICE FOR SLICING MACHINE AND SHARPENER.
CH683681A5 (en) Table for the preparation of blank separating tools in a sheet cutting machine for producing packaging.
FR2591932A1 (en) LASER CUTTING SYSTEM
CH667233A5 (en) Installation cutting on nets.
EP1095745A2 (en) Method for preparing a system composed of shaping tools, an adjustment rig for carrying out the method and a system of elements for preparing the upper part of a stripping tool
FR2627711A1 (en) WASTE EJECTION TOOL IN A PLATE ELEMENTS CUTTING MACHINE
EP1151833B1 (en) Apparatus for positioning sheets in a machine station
EP1153871B1 (en) Delivery station of a forming press and tool-kit for such a station
EP1155791B1 (en) Cutting press
EP0453982B1 (en) Universal movable upper tool for scrap ejection in a sheet cutting machine for the production of packaging material
EP1074353B1 (en) Universal waste removing tool
FR2458400A1 (en) IMPROVED MACHINE FOR ENGRAVING SIGNS OR SYMBOLS
EP0683004B1 (en) Apparatus for handling and positioning tools in a cutting press
FR2489856A1 (en) GUIDE TO FOLD WORKPIECES FOR CUTTING AND SEWING MACHINES
EP4183254A1 (en) Compact dough splitter
FR2969591A1 (en) DEVICE FOR STACKING AND SAMPLE SHEET OUTPUT OF A PRESS AND CORRESPONDING PRESS
FR2862565A1 (en) Notebook binding press, has free edges of joints extending horizontally by upper part and lower part of chassis in respective standing positions of leg assemblies, for permitting free access to part of quire set
FR2505723A3 (en) DEVICE FOR CUTTING CERAMIC HANDLES

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20001018

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Extension state: AL LT LV MK RO SI

AKX Designation fees paid

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

17Q First examination report despatched

Effective date: 20060904

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20110104