EP1170099A2 - Outil de poinçonnage pour produire des ouvertures dans une pièce en matériau thermoplastique - Google Patents

Outil de poinçonnage pour produire des ouvertures dans une pièce en matériau thermoplastique Download PDF

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Publication number
EP1170099A2
EP1170099A2 EP01108679A EP01108679A EP1170099A2 EP 1170099 A2 EP1170099 A2 EP 1170099A2 EP 01108679 A EP01108679 A EP 01108679A EP 01108679 A EP01108679 A EP 01108679A EP 1170099 A2 EP1170099 A2 EP 1170099A2
Authority
EP
European Patent Office
Prior art keywords
cutting edge
cutting
shaped
workpiece
punch
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Withdrawn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
EP01108679A
Other languages
German (de)
English (en)
Other versions
EP1170099A3 (fr
Inventor
Reiner Schlosser
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.)
Rehau Automotive SE and Co KG
Original Assignee
Rehau AG and Co
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 Rehau AG and Co filed Critical Rehau AG and Co
Publication of EP1170099A2 publication Critical patent/EP1170099A2/fr
Publication of EP1170099A3 publication Critical patent/EP1170099A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/38—Cutting-out; Stamping-out
    • B26F1/44—Cutters therefor; Dies therefor
    • 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
    • B26D7/08—Means for treating work or cutting member to facilitate cutting
    • B26D7/10—Means for treating work or cutting member to facilitate cutting by heating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/38—Cutting-out; Stamping-out
    • B26F1/40—Cutting-out; Stamping-out using a press, e.g. of the ram type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/38—Cutting-out; Stamping-out
    • B26F1/44—Cutters therefor; Dies therefor
    • B26F2001/4472—Cutting edge section features

Definitions

  • the invention relates to a punching tool for producing openings in workpieces Made of thermoplastic material with a cutting edge running around the front having, can be brought into engagement with a cutting plate in a working stroke and thereby the workpiece arranged between its cutting edge and the insert Generation of a breakthrough in the cutting direction penetrating locally heatable Punch.
  • Openings often have to be made in molded parts made of thermoplastic. When the openings are punched out, the formation of burrs or cracks is disadvantageous felt. Subsequent painting involves the sharp edges Paint accumulation and, as a result, flaking of the paint. This can be a Assume that the aesthetic appearance suffers. A Reworking the cut edges would be an additional step in series production Require labor.
  • a 1 describes a cutting tool and a method for punching Workpieces made of thermoplastic, in particular of flat motor vehicle add-on parts known.
  • a punch is in a column frame with an insert in a working stroke can be brought into engagement, wherein a wall opening in a workpiece is produced.
  • thermoplastic workpiece Another solution for shaping a thermoplastic workpiece using a Punching device is known from DE 197 48 407 A1.
  • a punching device on the foot of a punch knife a fillet profile with such a heating device that a predetermined punched edge profile is created by locally hot pressing the workpiece.
  • the outer surface of the cylindrical punching knife runs in at the foot of the same a groove-shaped area, the shape of which with respect to the desired Cross-sectional shape of the workpiece is selected at this point.
  • thermoplastic is removed by a heating device arranged in the throat area Material of the workpiece locally, i.e. H. heated in the area of the throat so that one for Sufficient softening occurs through shaping by hot pressing.
  • the invention is based on the object To provide punching tool, the stamp for both the top and for the Through cut is suitable, with a smooth, burr-free at low manufacturing costs Transition between the cut surface and the adjacent surface is achieved.
  • the object is achieved in that the stamp of the punching tool as a one-piece, heatable cutting punch with a cutting edge running around the front a V-shaped cutting edge geometry is formed.
  • the angle of the V-shaped cutting edge encircling the end face includes one Range from 5 ° to 20 °.
  • the height h of the V-shaped cutting edge in the top cut is in accordance with the thickness of the to be punched out material.
  • the outer contour of the V-shaped cutting edge has a radial transition.
  • the radius of the transition between the outer contour of the V-shaped cutting edge and the Shank diameter of the stamp is preferably smaller than the wall thickness of the to be punched out material.
  • the punching tool essentially consists of a column frame, a hold-down device (7) for the workpiece (6), a cutting plate (5) and a cutting punch (1) with a Heating device (8).
  • FIG. 1 shows a basic illustration of the cutting punch (1) according to the invention.
  • This has a V-shaped cutting edge (2) on the end face.
  • the outer contour (3) of the V-shaped Cutting edge (2) merges into a radius-shaped area (4).
  • the radius of the radius Area (4) is preferably in the area smaller than the wall thickness of the workpiece (6).
  • the heating device (8) is arranged in a radial region. Depending on the material of the Workpiece (6), the radius-shaped area is heated to 60 ° C to 130 ° C.
  • the height (H) the V-shaped cutting edge (2) is preferably in the area of the top cut Wall thickness of the workpiece (6).
  • FIG 2 the process of the top section is shown in principle.
  • the cutting punch (1) is moved in an axial stroke in the direction of the cutting plate (5).
  • the axial stroke is divided into a working stroke and a return stroke for each cutting process.
  • the part of the workpiece (6) punched out during the working stroke is ejected during the return stroke by an ejector arranged in the cutting punch (1).
  • the opening is punched out and the radius / smoothing is formed on the visible side of the workpiece (6) through the radius-shaped area (4) of the punch (1) in one operation. Due to the heating of the radius-shaped area (4) by means of the heating device (8), the cut edge of the workpiece (6) is plasticized under contact heating, which is then smoothed according to the contour of the radius-shaped area (4).
  • the process is shown in principle when performing a through cut.
  • the cutting plate (5) has a conical opening (9) that widens downward from the workpiece support surface.
  • the cutting punch (1) is moved in the direction of the cutting plate (5) by an axial stroke.
  • the material flows over the edge of the opening (9) in the cutting plate (5).
  • the surface is already drawn inwards in a radius.
  • the part to be punched out is sheared off by the interaction of the cutting edge (10) of the cutting plate (5) and the outer contour of the V-shaped cutting edge (2).
  • the punched-out is ejected over the opening (9).
  • the heated radius-shaped area (4) results in a smoothing in the punched area during the lower dead center support of the cutting punch (1).
  • the height (H) of the V-shaped cutting edge (2) is greater than the wall thickness of the material to be punched out in the through cut.
  • the cutting edge occurs when punching out in a first step after placing the Cutting stamp on the workpiece surface to a process similar to deep drawing.
  • the material is already inwards to a certain extent thanks to the V-shaped cutting edge pulled so that a sharp-edged transition to the punching is already avoided. Due to the heated radius-shaped area (4) there is no actual reshaping, but just a smoothing of the surface.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
EP01108679A 2000-07-04 2001-04-06 Outil de poinçonnage pour produire des ouvertures dans une pièce en matériau thermoplastique Withdrawn EP1170099A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2000132458 DE10032458A1 (de) 2000-07-04 2000-07-04 Stanzwerkzeug zur Herstellung von Durchbrüchen in Werkstücken aus thermoplastischem Material
DE10032458 2000-07-04

Publications (2)

Publication Number Publication Date
EP1170099A2 true EP1170099A2 (fr) 2002-01-09
EP1170099A3 EP1170099A3 (fr) 2003-10-15

Family

ID=7647740

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01108679A Withdrawn EP1170099A3 (fr) 2000-07-04 2001-04-06 Outil de poinçonnage pour produire des ouvertures dans une pièce en matériau thermoplastique

Country Status (2)

Country Link
EP (1) EP1170099A3 (fr)
DE (1) DE10032458A1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10239452A1 (de) * 2002-08-28 2004-03-18 Dynamit Nobel Kunststoff Gmbh Prägestanzen von harten Kunststoffen
EP1649988A1 (fr) * 2004-10-22 2006-04-26 G. WACHSMUTH & CO. WERKZEUGBAU GmbH Dispositif de coupe d'un film, en particulier d'un film multicouche
EP1762348A1 (fr) * 2005-09-12 2007-03-14 Ricoh Company, Ltd. Dispositif perforateur avec un éffet réduit de déformation a cause de la chaleur et dispositif de formation d'images avec le même
DE202008015770U1 (de) 2008-11-27 2009-02-26 Karl Reichardt, Stanzmesserfabrik Gmbh Stanzvorrichtung und Heizplatte dafür
DE102008059934A1 (de) * 2008-12-02 2010-06-10 Reiplinger Gmbh & Co. Kg Stanzstempel und Verwendung des Stanzstempels
WO2011128072A1 (fr) * 2010-04-12 2011-10-20 Faurecia Innenraum Systeme Gmbh Procédé et dispositif d'outil pour former une couche de mousse d'une pièce moulée
DE102010061991A1 (de) * 2010-11-25 2012-05-31 Bayerische Motoren Werke Aktiengesellschaft Verfahren zum Stanzen einer aus Fasermaterial bestehenden Fasermatte
WO2014111243A3 (fr) * 2013-01-16 2014-09-12 Rehau Ag + Co Procédé de production d'un élément structural polymère pour véhicule à moteur
CN121244775A (zh) * 2025-12-04 2026-01-02 珠海富士智能股份有限公司 电池极柱的加工设备及其方法、存储介质

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL1568451T3 (pl) 2004-02-27 2008-06-30 Nestec Sa Sposób i urządzenie do wykrawania materiału filtracyjnego
CN113211766B (zh) * 2021-06-15 2025-03-14 惠州万玺科技有限公司 一种热熔性印章垫的压边设备及其印垫压制方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1482554A (fr) * 1965-06-09 1967-05-26 Procédé d'obtention de lettres, caractères et marques
DE3047886A1 (de) * 1979-12-20 1981-10-29 The Fujikura Cable Works, Ltd., Tokyo Verfahren zur herstellung eines stanzwerkzeugs und nach diesem verfahren hergestelltes stanzwerkzeug
DE3740435A1 (de) * 1987-11-28 1989-06-15 Helmut Pelzer Schneidwerkzeug fuer werkstuecke aus langfaserigen materialien
US5622587A (en) * 1991-12-19 1997-04-22 Barthelman; Kenneth L. Method for producing a three-dimensional laminated decal composite
CN1145050A (zh) * 1994-04-05 1997-03-12 美国3M公司 切割和密封多孔切边薄片的装置和方法
DE19640562C2 (de) * 1996-10-01 2002-12-19 Bosch Gmbh Robert Vorrichtung zum Formen, Füllen, Verschließen und Vereinzeln von Behältern
DE19730859A1 (de) * 1997-07-17 1999-01-21 Magna Pebra Gmbh Schneidwerkzeug und Verfahren zum Lochen von Werkstücken aus thermoplastischem Kunststoff
DE19748407B4 (de) * 1997-11-03 2006-04-06 Volkswagen Ag Stanzvorrichtung zur Formgebung eines thermoplastischen Werkstücks
DE29720203U1 (de) * 1997-11-14 1998-01-22 Albert Braach GmbH + Co KG Modell- und Maschinenbau, 57334 Bad Laasphe Beheiztes Schneidwerkzeug

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10239452A1 (de) * 2002-08-28 2004-03-18 Dynamit Nobel Kunststoff Gmbh Prägestanzen von harten Kunststoffen
DE10239452B4 (de) * 2002-08-28 2008-02-28 Plastal Gmbh Prägestanzen von harten Kunststoffen
EP1649988A1 (fr) * 2004-10-22 2006-04-26 G. WACHSMUTH & CO. WERKZEUGBAU GmbH Dispositif de coupe d'un film, en particulier d'un film multicouche
EP1762348A1 (fr) * 2005-09-12 2007-03-14 Ricoh Company, Ltd. Dispositif perforateur avec un éffet réduit de déformation a cause de la chaleur et dispositif de formation d'images avec le même
US7762170B2 (en) 2005-09-12 2010-07-27 Ricoh, Co. Ltd. Heat-effect reduceable finishing unit and image forming system using the same
DE202008015770U1 (de) 2008-11-27 2009-02-26 Karl Reichardt, Stanzmesserfabrik Gmbh Stanzvorrichtung und Heizplatte dafür
DE102008059934A1 (de) * 2008-12-02 2010-06-10 Reiplinger Gmbh & Co. Kg Stanzstempel und Verwendung des Stanzstempels
DE102008059934B4 (de) * 2008-12-02 2011-06-16 Reiplinger Gmbh & Co. Kg Stanzstempel und Verwendung des Stanzstempels
WO2011128072A1 (fr) * 2010-04-12 2011-10-20 Faurecia Innenraum Systeme Gmbh Procédé et dispositif d'outil pour former une couche de mousse d'une pièce moulée
DE102010061991A1 (de) * 2010-11-25 2012-05-31 Bayerische Motoren Werke Aktiengesellschaft Verfahren zum Stanzen einer aus Fasermaterial bestehenden Fasermatte
DE102010061991B4 (de) * 2010-11-25 2016-06-09 Bayerische Motoren Werke Aktiengesellschaft Verfahren zum Stanzen einer aus Fasermaterial bestehenden Fasermatte
WO2014111243A3 (fr) * 2013-01-16 2014-09-12 Rehau Ag + Co Procédé de production d'un élément structural polymère pour véhicule à moteur
CN104936765A (zh) * 2013-01-16 2015-09-23 雷奥两合股份公司 聚合物的机动车部件的制造方法
CN104936765B (zh) * 2013-01-16 2017-09-22 雷奥两合股份公司 聚合物的机动车部件的制造方法
US10226901B2 (en) 2013-01-16 2019-03-12 Rehau Ag + Co Method for rounding edges of polymer motor vehicle components
CN121244775A (zh) * 2025-12-04 2026-01-02 珠海富士智能股份有限公司 电池极柱的加工设备及其方法、存储介质

Also Published As

Publication number Publication date
DE10032458A1 (de) 2002-07-25
EP1170099A3 (fr) 2003-10-15

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