EP1067200A1 - Werkzeugmaschine zum kontinuierlichen Schneiden von blattförmigen elementen, insbesondere Häuten und dergleichen - Google Patents

Werkzeugmaschine zum kontinuierlichen Schneiden von blattförmigen elementen, insbesondere Häuten und dergleichen Download PDF

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Publication number
EP1067200A1
EP1067200A1 EP99112786A EP99112786A EP1067200A1 EP 1067200 A1 EP1067200 A1 EP 1067200A1 EP 99112786 A EP99112786 A EP 99112786A EP 99112786 A EP99112786 A EP 99112786A EP 1067200 A1 EP1067200 A1 EP 1067200A1
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EP
European Patent Office
Prior art keywords
sheet
cut
cutting
machine tool
patterns
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Withdrawn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
EP99112786A
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English (en)
French (fr)
Inventor
Gerhard Winter
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.)
Individual
Original Assignee
Individual
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Publication date
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8238493&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1067200(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Individual filed Critical Individual
Priority to EP99112786A priority Critical patent/EP1067200A1/de
Priority to BR0002928A priority patent/BR0002928A/pt
Publication of EP1067200A1 publication Critical patent/EP1067200A1/de
Withdrawn legal-status Critical Current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

Definitions

  • the present invention relates to a machine tool for continuously cutting sheet-like elements, particularly hides and the like.
  • cutting (performed by means of a blade, a laser or a water jet) is performed in a subsequent step, using two different workstations or by using machines with a double worktable in order to work alternately (while on one side, on one portion of hide, the operator removes the previously cut pieces and places the patterns on a new hide, on the other side the cutting head cuts the previously placed patterns).
  • large belt-type machines have been provided which connect or constitute the different areas assigned to placement, cutting and removal.
  • optical detectors used in offline automatic placement are used exclusively for pattern placement work.
  • the aim of the present invention is to eliminate the above-mentioned drawbacks, by providing a machine tool for continuously cutting sheet-like elements, particularly hides and the like, which optimizes the use of resources, improves the monitoring capability of the operator and limits the dimensions and the cost of the system, by means of a configuration of the machine which concentrates all the activities in a single relatively compact area under the direct supervision of the operator.
  • a particular object of the present invention is to provide a machine tool which allows to provide high integration between man and machine together with an integration of operating steps such as placement, detection of the contour of the sheet-like element and cutting thereof.
  • Another object of the present invention is to provide a machine tool which by virtue of its particular constructive characteristics is capable of giving the greatest assurances of reliability and safety in use.
  • Another object of the present invention is to provide a machine tool which can be easily obtained starting from commonly commercially available elements and materials and is also competitive from a purely economic point of view.
  • a machine tool for continuously cutting sheet-like elements, particularly hides and the like comprising a surface for supporting the sheet-like element to be cut provided with means for retaining said sheet-like element, means for detecting the useful contour of said sheet-like element, means for projecting the patterns to be cut on said sheet-like element, and cutting means driven by an actuation unit which is controlled by means for controlling the positioning of the projected patterns, characterized in that said cutting means comprise at least two cutting heads which act simultaneously and independently of each other, each one of said cutting heads being movable in two mutually substantially perpendicular directions.
  • the machine tool for continuously cutting sheet-like elements, particularly hides and the like comprises a supporting surface which, in the embodiment shown in Figures 1 to 3, is constituted by a perforated plate 2 or by an air-permeable surface which is connected between an unwinding roller 3, provided on the front of the machine, and a takeup roller 4 which is provided in the rear part of the machine.
  • suction means which in practice provide the means for retaining the sheet-like element to be cut, which can be constituted by a hide or by other sheet-like elements.
  • a head In the initial portion of the belt 2 there is in practice the region for loading or positioning the sheet-like element to be cut, and a head, generally designated by the reference numeral 10, operates in said region and is meant to both detect the useful contour of the sheet-like element by means of a TV camera and project the patterns by means of laser projectors or the like, allowing the operator to confirm the provided positioning of the patterns or to modify it.
  • the TV camera is also meant to identify the regions covered by the hide, so as to activate suction at the sectors required to retain the hide, automating an operation which is currently performed manually by the operator.
  • the positioning of the patterns is then transmitted to a cutting unit, generally designated by the reference numeral 20, where cutting means are provided which are advantageously constituted by a first cutting head 21 and by a second cutting head 22, which can move on guides, generally designated by the reference numeral 30, which allow to perform a movement along two mutually perpendicular directions and are constituted by longitudinal bars 30a and by transverse bars 30b.
  • the cutting heads 21 and 22 have the particularity that the movement of the tool along the longitudinal axis is provided by the movement of each longitudinal bar 30a to which each head is connected.
  • the movement occurs with respect to the transverse bars 30b, so as to avoid constituting a fixed bulk in a longitudinal direction and so as to allow the operator to also access part of the work area of the head when it is not occupied by said head.
  • An important particularity of the invention is constituted by the fact that the actuation means can drive the two cutting heads so that said heads act simultaneously and independently of each other, accordingly allowing to drastically reduce cutting times.
  • the cutting heads are actuated simultaneously with pattern detection.
  • the transfer of the detected patterns is gradual and the belt is moved practically pattern by pattern in order to safeguard both the visibility of the successive positionings and the promptness of the intervention of the cutting heads.
  • the patterns are detected and simultaneously, as soon as the positioning of the first patterns has been performed, it is possible to begin the cutting operations, thus avoiding downtimes, since the cutting heads can work simultaneously with respect to the pattern detection means and pattern positioning means.
  • An important characteristic is further constituted by the fact that the conveyor 2 is connected to motor means which allow to perform bidirectional actuation, offering two advantages: first of all, it is possible to utilize the movement in both directions during cutting, and secondly, it is possible to accumulate the cut material as the cutting step advances and then provide for the return of the cut material, which is accordingly removed from the same end of the machine where loading occurs.
  • the perforated belt on which the sheet-like element to be cut is applied winds onto the takeup roller 4, accommodating the cut sheet-like element until the hide, for example, has been cut completely.
  • the advancement direction of the belt is reversed and therefore the cut parts are gradually removed.
  • the TV camera by detecting the part just removed, gives the projector a clearance to indicate the next part to be removed.
  • a conveyor belt designated by the reference numeral 40, which runs continuously around rollers 41 and 42 and which, at the lower portion, is flanked by a contrast belt 43 which is connected at 44 to the portion of the belt 40 and unwinds from an auxiliary unit 45 which in practice allows to lock the cut sheet-like element between the two belts until the complete cut has been performed, after which it is possible to reverse the direction of rotation of the belt 40 so as to be able to extract the cut patterns.
  • This arrangement therefore provides a unit for accumulating the already-cut material which does not require an extension of said surface, so that the machine has compact dimensions although allowing to cut large hides.
  • the materials employed may be any according to requirements.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Control Of Cutting Processes (AREA)
EP99112786A 1999-07-02 1999-07-02 Werkzeugmaschine zum kontinuierlichen Schneiden von blattförmigen elementen, insbesondere Häuten und dergleichen Withdrawn EP1067200A1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP99112786A EP1067200A1 (de) 1999-07-02 1999-07-02 Werkzeugmaschine zum kontinuierlichen Schneiden von blattförmigen elementen, insbesondere Häuten und dergleichen
BR0002928A BR0002928A (pt) 1999-07-02 2000-06-30 Máquina ferramenta para cortar de forma contìnua elementos tipo folha

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP99112786A EP1067200A1 (de) 1999-07-02 1999-07-02 Werkzeugmaschine zum kontinuierlichen Schneiden von blattförmigen elementen, insbesondere Häuten und dergleichen

Publications (1)

Publication Number Publication Date
EP1067200A1 true EP1067200A1 (de) 2001-01-10

Family

ID=8238493

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99112786A Withdrawn EP1067200A1 (de) 1999-07-02 1999-07-02 Werkzeugmaschine zum kontinuierlichen Schneiden von blattförmigen elementen, insbesondere Häuten und dergleichen

Country Status (2)

Country Link
EP (1) EP1067200A1 (de)
BR (1) BR0002928A (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101429566B (zh) * 2007-11-09 2012-11-28 上海旭和环境工程有限公司 一种皮带开槽装置及方法
WO2016131924A1 (en) * 2015-02-20 2016-08-25 Comelz S.P.A. Method for cutting natural hides and the like
WO2016135637A1 (en) * 2015-02-25 2016-09-01 Aeffe Machinery S.R.L. Method for producing motifs on leather and related leather punching machine
IT201600129413A1 (it) * 2016-12-21 2018-06-21 Atom Spa Macchina di taglio a cnc bifronte per il taglio di pelli naturali e simili

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3519806A1 (de) * 1985-02-01 1986-08-07 Investronica, S.A., Madrid Verfahren und vorrichtung zur anpassung der muster von zuschnitten vor dem schneiden aus bahnenfoermigem gemusterten material
FR2582317A1 (fr) * 1985-05-22 1986-11-28 Imbert G Ets Procede de decoupe automatique d'une peau ou similaire a partir du placement interactif de gabarits sur ladite peau et dispositif pour sa mise en oeuvre
US4725961A (en) * 1986-03-20 1988-02-16 Gerber Garment Technology, Inc. Method and apparatus for cutting parts from pieces of irregularly shaped and sized sheet material
DE3938663A1 (de) * 1989-11-21 1991-05-23 Macis Computer Informations Sy Verfahren zum rechnergesteuerten heraustrennen von teilstuecken aus einem flachbahnstueck, insbesondere lederstueck
EP0799898A2 (de) * 1996-04-02 1997-10-08 GFM GmbH Verfahren zum Ausschneiden von Zuschnitten aus flachen, unregelmässigen Werkstücken, insbesondere Lederstücken
DE19719196A1 (de) * 1996-05-08 1997-11-13 Wolfgang Dipl Ing Bruder Verfahren und Vorrichtung zur Anfertigung von Zuschnitten aus fehlerhaften, flächigen biegeschlaffen Werkstoffen

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3519806A1 (de) * 1985-02-01 1986-08-07 Investronica, S.A., Madrid Verfahren und vorrichtung zur anpassung der muster von zuschnitten vor dem schneiden aus bahnenfoermigem gemusterten material
FR2582317A1 (fr) * 1985-05-22 1986-11-28 Imbert G Ets Procede de decoupe automatique d'une peau ou similaire a partir du placement interactif de gabarits sur ladite peau et dispositif pour sa mise en oeuvre
US4725961A (en) * 1986-03-20 1988-02-16 Gerber Garment Technology, Inc. Method and apparatus for cutting parts from pieces of irregularly shaped and sized sheet material
DE3938663A1 (de) * 1989-11-21 1991-05-23 Macis Computer Informations Sy Verfahren zum rechnergesteuerten heraustrennen von teilstuecken aus einem flachbahnstueck, insbesondere lederstueck
EP0799898A2 (de) * 1996-04-02 1997-10-08 GFM GmbH Verfahren zum Ausschneiden von Zuschnitten aus flachen, unregelmässigen Werkstücken, insbesondere Lederstücken
DE19719196A1 (de) * 1996-05-08 1997-11-13 Wolfgang Dipl Ing Bruder Verfahren und Vorrichtung zur Anfertigung von Zuschnitten aus fehlerhaften, flächigen biegeschlaffen Werkstoffen

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101429566B (zh) * 2007-11-09 2012-11-28 上海旭和环境工程有限公司 一种皮带开槽装置及方法
WO2016131924A1 (en) * 2015-02-20 2016-08-25 Comelz S.P.A. Method for cutting natural hides and the like
WO2016135637A1 (en) * 2015-02-25 2016-09-01 Aeffe Machinery S.R.L. Method for producing motifs on leather and related leather punching machine
IT201600129413A1 (it) * 2016-12-21 2018-06-21 Atom Spa Macchina di taglio a cnc bifronte per il taglio di pelli naturali e simili

Also Published As

Publication number Publication date
BR0002928A (pt) 2001-04-03

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