EP0566817A1 - Procédé et table de découpe pour couper des matériaux pouvant former des plis, en particulier le cuir - Google Patents

Procédé et table de découpe pour couper des matériaux pouvant former des plis, en particulier le cuir Download PDF

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Publication number
EP0566817A1
EP0566817A1 EP92890097A EP92890097A EP0566817A1 EP 0566817 A1 EP0566817 A1 EP 0566817A1 EP 92890097 A EP92890097 A EP 92890097A EP 92890097 A EP92890097 A EP 92890097A EP 0566817 A1 EP0566817 A1 EP 0566817A1
Authority
EP
European Patent Office
Prior art keywords
cutting
blanks
vacuum
flat material
pattern
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Withdrawn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
EP92890097A
Other languages
German (de)
English (en)
Inventor
Gottfried Dipl.-Ing. Blaimschein
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.)
GFM Gesellschaft fuer Fertigungstechnik und Maschinenbau AG
Original Assignee
GFM Gesellschaft fuer Fertigungstechnik und Maschinenbau AG
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 GFM Gesellschaft fuer Fertigungstechnik und Maschinenbau AG filed Critical GFM Gesellschaft fuer Fertigungstechnik und Maschinenbau AG
Priority to EP92890097A priority Critical patent/EP0566817A1/fr
Publication of EP0566817A1 publication Critical patent/EP0566817A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C14—SKINS; HIDES; PELTS; LEATHER
    • C14B—MECHANICAL TREATMENT OR PROCESSING OF SKINS, HIDES OR LEATHER IN GENERAL; PELT-SHEARING MACHINES; INTESTINE-SPLITTING MACHINES
    • C14B5/00—Clicking, perforating, or cutting leather
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/01—Means for holding or positioning work
    • B26D7/018—Holding the work by suction
    • C—CHEMISTRY; METALLURGY
    • C14—SKINS; HIDES; PELTS; LEATHER
    • C14B—MECHANICAL TREATMENT OR PROCESSING OF SKINS, HIDES OR LEATHER IN GENERAL; PELT-SHEARING MACHINES; INTESTINE-SPLITTING MACHINES
    • C14B17/00—Details of apparatus or machines for manufacturing or treating skins, hides, leather, or furs
    • C14B17/04—Work-supports or other counter-pressing elements; Bed rolls or counter-pressing rolls

Definitions

  • the invention relates to a method for cutting out blanks from fold-forming flat material, in particular leather, in which the flat material is held down on a cutting table by applying vacuum and the blanks after a material defect detection and a position, shape and size of the material defect taking into account the pattern created in accordance with the pattern created cut out individually, as well as on a cutting table to carry out this process.
  • the invention is therefore based on the object of eliminating these deficiencies and of specifying a method of the type described at the outset which enables rational cutting out of blanks with optimum use of material and perfect cutting conditions.
  • a cutting table for easy implementation of this method is to be created.
  • the invention solves this problem in that the negative pressure for holding down the flat material is limited to the cutting table areas assigned to the pattern-appropriate blanks and the negative pressure in these areas is preferably central Starting point is applied progressively from the edge.
  • the negative pressure is progressively applied towards the edge from a point within a table area corresponding to a cut
  • folds lying within such a material area selected for a cut can be shifted to the edge in the course of the progressive negative pressure application and away from the cut area into the To move between areas where they neither disturb the quality of the cut nor increase the material waste.
  • the work surface for the application of negative pressure includes a large number of vacuum suction devices arranged next to one another in a grid-like division, each of which can be connected via a shut-off device to a vacuum source and is one Control device is provided for selective and staggered activation of the shut-off devices.
  • the vacuum suction devices arranged in a correspondingly distributed manner can be combined into any groups and activated in the desired order, so that the respective limitation of the vacuum application to certain table areas and the simultaneous or staggered application of the vacuum in these areas is possible without restriction and also to the patterns just created are customizable.
  • control device is connected to a material defect detection and pattern creation device that is known per se and the cut pattern created in each case can be adopted in the control program of the control device, the control process for restricting the vacuum application and the activation of the vacuum suction devices can be automated automatically and matched directly to the cut pattern created in each case.
  • a cutting table 1 with a work surface 2 which can be subjected to vacuum for laying down and holding down the flat material, the work surface being associated with a large number of vacuum suction devices 3 arranged next to one another in a grid-like division.
  • the vacuum cleaners each consist of suction bores 4, the go out from a vacuum source 5 and open out on the support side in suction nozzles 6.
  • a separate shut-off device 7 is provided for each suction bore 4, which consists, for example, of a solenoid valve 8 and controls the line connection between suction bore 4 and vacuum source 5.
  • a vacuum pump 10 is connected to the cavity 9 of the cutting table 1 forming the negative pressure source via a negative pressure line 11.
  • An electrical control device 12 allows suitable control of the shut-off elements 7 by means of suitable control lines 13, so that the vacuum suction devices 3 can be activated depending on the position and staggered in time and hold down the flat material placed on the work surface 2 by a certain method, the work surface 2 preferably being one of the Vacuum suction 3 covering plate 14 is formed of air-permeable material.
  • the negative pressure on the work surface 2 for holding down a flat material M is limited to the cutting table areas B respectively assigned to the pattern-appropriate blanks Z, the negative pressure in these areas B from an approximately central starting point, for example the vacuum suction device 31, to the edge progressively applied over the vacuum suction 32, 33, 34, etc.
  • this reduces the performance of the negative pressure to the extent required to actually hold the flat material M when cutting out the blanks according to the line S and, on the other hand, for the material strips adjacent to the blanks, i.e. the material areas outside the cutting line S, to lie loosely on the work surface 2 taken care of, so that folds can form freely in the intermediate areas counting as waste.
  • control device 12 is connected to a material defect detection device 15, an error detection can be carried out for the flat material placed on the cutting table 1, then a cutting pattern taking these material defects into account is created and finally this cutting pattern is adopted in the control program of the control device 12 , so that the individual vacuum cleaners 3 of the cutting table 1 can be controlled automatically in accordance with the created cutting pattern and the flat material is held down to the cut and eliminating wrinkles from the cutting area.
EP92890097A 1992-04-21 1992-04-21 Procédé et table de découpe pour couper des matériaux pouvant former des plis, en particulier le cuir Withdrawn EP0566817A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP92890097A EP0566817A1 (fr) 1992-04-21 1992-04-21 Procédé et table de découpe pour couper des matériaux pouvant former des plis, en particulier le cuir

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP92890097A EP0566817A1 (fr) 1992-04-21 1992-04-21 Procédé et table de découpe pour couper des matériaux pouvant former des plis, en particulier le cuir

Publications (1)

Publication Number Publication Date
EP0566817A1 true EP0566817A1 (fr) 1993-10-27

Family

ID=8212292

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92890097A Withdrawn EP0566817A1 (fr) 1992-04-21 1992-04-21 Procédé et table de découpe pour couper des matériaux pouvant former des plis, en particulier le cuir

Country Status (1)

Country Link
EP (1) EP0566817A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0799898A2 (fr) * 1996-04-02 1997-10-08 GFM GmbH Procédé pour découper des pièces d'une matière plate, irrégulière, en particulier le cuir
WO2001038054A1 (fr) * 1999-11-24 2001-05-31 Biermann, Ernst Procede de production de decoupes en materiaux composites
EP1178120A2 (fr) * 2000-07-04 2002-02-06 Teseo S.p.A. Dispositif pour la fixation amovible des objets plats tels que les peaux ou similaires sur une surface de travail
ITMI20131002A1 (it) * 2013-06-18 2014-12-19 Atom Spa Tavolo di taglio con aspirazione differenziata per la stabilizzazione del materiale da recidere
ITUB20160703A1 (it) * 2016-02-12 2017-08-12 Teseo Spa Sistema per il taglio di articoli a sviluppo piano disposti in aderenza su un piano di lavoro, e metodo per il taglio di articoli attuato con detto sistema

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4111304A1 (de) * 1990-04-09 1991-10-10 Gerber Garment Technology Inc Verfahren und einrichtungen zum schneiden von teilen aus werkstuecken aus flachem material

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4111304A1 (de) * 1990-04-09 1991-10-10 Gerber Garment Technology Inc Verfahren und einrichtungen zum schneiden von teilen aus werkstuecken aus flachem material

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0799898A2 (fr) * 1996-04-02 1997-10-08 GFM GmbH Procédé pour découper des pièces d'une matière plate, irrégulière, en particulier le cuir
EP0799898A3 (fr) * 1996-04-02 1998-09-23 GFM GmbH Procédé pour découper des pièces d'une matière plate, irrégulière, en particulier le cuir
WO2001038054A1 (fr) * 1999-11-24 2001-05-31 Biermann, Ernst Procede de production de decoupes en materiaux composites
EP1178120A2 (fr) * 2000-07-04 2002-02-06 Teseo S.p.A. Dispositif pour la fixation amovible des objets plats tels que les peaux ou similaires sur une surface de travail
EP1178120A3 (fr) * 2000-07-04 2003-05-14 Teseo S.p.A. Dispositif pour la fixation amovible des objets plats tels que les peaux ou similaires sur une surface de travail
ITMI20131002A1 (it) * 2013-06-18 2014-12-19 Atom Spa Tavolo di taglio con aspirazione differenziata per la stabilizzazione del materiale da recidere
WO2014202203A1 (fr) * 2013-06-18 2014-12-24 Atom S.P.A. Table de coupe à aspiration différenciée pour stabiliser le matériau à couper
ITUB20160703A1 (it) * 2016-02-12 2017-08-12 Teseo Spa Sistema per il taglio di articoli a sviluppo piano disposti in aderenza su un piano di lavoro, e metodo per il taglio di articoli attuato con detto sistema
WO2017137913A1 (fr) * 2016-02-12 2017-08-17 Teseo S.P.A. Système de découpe d'articles présentant une extension plane collée sur un plan de travail aspirant, et procédé de découpe d'articles mis en oeuvre au moyen du système

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