DE2740981A1 - Composite punching tool - with cutter part spot welded to body part - Google Patents

Composite punching tool - with cutter part spot welded to body part

Info

Publication number
DE2740981A1
DE2740981A1 DE19772740981 DE2740981A DE2740981A1 DE 2740981 A1 DE2740981 A1 DE 2740981A1 DE 19772740981 DE19772740981 DE 19772740981 DE 2740981 A DE2740981 A DE 2740981A DE 2740981 A1 DE2740981 A1 DE 2740981A1
Authority
DE
Germany
Prior art keywords
body part
knife
cutting
knife body
cutting part
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.)
Ceased
Application number
DE19772740981
Other languages
German (de)
Other versions
DE2740981B2 (en
Inventor
Gustav Ing Marchard
Gerhard Rosenkranz
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.)
Vereinigte Edelstahlwerke AG
Original Assignee
Vereinigte Edelstahlwerke 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 Vereinigte Edelstahlwerke AG filed Critical Vereinigte Edelstahlwerke AG
Priority to DE19772740981 priority Critical patent/DE2740981B2/en
Priority to AT643278A priority patent/AT370300B/en
Publication of DE2740981A1 publication Critical patent/DE2740981A1/en
Publication of DE2740981B2 publication Critical patent/DE2740981B2/en
Ceased legal-status Critical Current

Links

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
    • C14B5/02—Stamps or dies for leather articles
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43D—MACHINES, TOOLS, EQUIPMENT OR METHODS FOR MANUFACTURING OR REPAIRING FOOTWEAR
    • A43D8/00—Machines for cutting, ornamenting, marking or otherwise working up shoe part blanks
    • A43D8/02—Cutting-out
    • A43D8/04—Stamping-out
    • A43D8/06—Dies therefor
    • 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
    • B26F1/46—Loose press knives

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Knives (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Abstract

A punching tool for shapes such as shoe soles consists of a slender cutter part which is made of cold-bent steel strip with a hardness of 40-50 HRC, and a more massive body part, made of cold-bent strip steel with a strength of 30-90 kg/mm2. The two parts are spot welded together at the neutral fibre of the cutter part to prevent distortion. The cutter part is welded to the inside of the body part so that the punching tool has a self-discharging action. It requires neither heat treatment nor straightening.

Description

StanzmesserPunching knife

Die Erfindung betrifft ein Stanzmesser, insbesondere zum Heraustanzen von Schuhsolen, mit ylindrischen Seitenflächen sowie ein Verfahren zur Herstellung des ersteren.The invention relates to a punching knife, in particular for punching out of shoe soles, with cylindrical side surfaces and a method for production of the former.

Es sind aus warmgewalztem Profilstahl durch Schmieden oder Kaltbiegen hergestellte Stanzmesser bekannt. Bei der Herstellung solcher Stanzmesser ist es nach dem Schmiede- bzw. Kaltbiegevorgang nötig, diese einer spanabhebenden Bearbeitung zu unterziehen, um die Messerschneide zu erhalten und die gewUnschte Messerhöhe zu erzielen. Danach mUssen die betreffenden Stanzmesser einer Wärmebehandlung unterzogen werden.They are made of hot-rolled profile steel by forging or cold bending made punching knives known. It is in the manufacture of such punching knives after the forging or cold bending process, this is a machining process to undergo in order to obtain the knife edge and the desired knife height to achieve. The punching knives in question must then be subjected to a heat treatment will.

Sodann ist meistens ein sehr aufwendiger Richtvorgang notwendig, damit die durch eine Schablone festgelegte Messerform erhalten wird.A very complex straightening process is then usually necessary in order to achieve this the knife shape determined by a template is obtained.

Arbeitszeit - und Kostenaufwand für die Herstellung eines Stanzmessers en der eben beschriebenArt sind daher beträchtlich.Labor and cost of making a punching knife The kind just described are therefore considerable.

Der Erfindung liegt die Aufgabe zugrunde, die vorstehend angeführten Nachteile zu vermeiden und ein besonders leicht herstellbares, slch selbst entleerendes Stanzmesser zu schaffen, bei dem nach einem Kaltbiegevorgang weder eine Wärmebehandlung, noch ein Richtvorgang erforderlich ist.The invention is based on the above-mentioned object Avoid disadvantages and a particularly easy to manufacture, self-draining one To create punching knives in which after a cold bending process neither a heat treatment, a straightening process is still required.

Erfindungsgemäß wird dies bei einem Stanzmesser der eingangs genannten Art dadurch erreicht, daß das Stanzmesser aus einem Schneidenteil und einem denselben umgebenden Messerkörperteil zusammengesetzt ist, wobei der Schneidenteil in einer Richtung mit seiner Schneide gegenüber dem Messerkörperteil hervorragt - wie an sich bekannt - und daß Uberdies in der anderen Richtung der Messerkörperteil gegenüber dem Schneidenteil vorsteht.According to the invention, this is the case mentioned at the outset in the case of a punching knife Kind achieved in that the punch knife consists of a cutting part and the same surrounding knife body part is assembled, the cutting part in a Direction with its cutting edge protrudes from the knife body part - as on known - and that, moreover, in the other direction of the knife body part opposite protrudes from the cutting part.

Im folgenden wird die Erfindung im einzelnen in einem Ausführungsbeispiel erläutert, das durch die Zeichnung in schematischer Darstellung veranschaulicht ist. Die Zeichnung zeigt elnen Querschnitt eines sich selbst entleerenden Stanzmessers zum Herausstanzen von Schuhsolen.In the following the invention is described in detail in an exemplary embodiment explained, illustrated by the drawing in a schematic representation is. The drawing shows a cross-section of a self-emptying punch knife for punching out shoe soles.

Dieses Stanzmesser ist aus einem Schneidenteil 1 und einem denselben umgebenden Messerkörperteil 2 zusammengesetzt. Der Schneidenteil 1 ragt in einer Richtung mit selner Schneide 1' gegenüber dem Messerkörperteil 2 hervor. In der anderen Richtung steht jedoch der Messerkörperteil 2 gegenUber dem Schneidenteil 1 vor. Der Messerkörperteil 2 besteht aus einem Stahl mit einer Festigkeit zwischen 30 und 9o kp/mm2 undlUa Stabstahl mit einer normalen Kaltbiegemaschine auf die gewUnschte Form gebogen. Der Schneidenteil 1 besteht aus einem Stahl mit einer Körperhärte zwischen 40 und 50 HRc und wurde ebenfalls aus Stabstahl mit einer normalen Kaltbiegemaschine und zwar im harten Zustand auf die betreffende Form gebogen. Der Schneidenteil 1 und der Messerkörperteil 2 wurden nach dem Biegen auf die gewünschte Form mittels einer Schweißvorrichtung so zusammengehalten, daß die verlange Messerhöhe exakt erzielt werden konnte.Sodann wurdeder Messerkörperteil 2 mit dem Schneidenteil 1 in dessen neutraler Faser durch punktförmige Außenschwelßungen 3 jeweils im Abstand von etwa 20 bis 40 mm miteinander verbunden. (Diese Schweißungen erfolgten genau in der neutralen Faser des Schneidenteiles 1, um jeden Verzug desselben zu vermeiden.) Die Wärmeeinwirkung durch das Schweißen veränderte den Schneidenteil 1 nur geringfügig, da der Hauptteil der beim punktförmigen Verschweißen entstandenen Wärme sehr rasch in den verhältnismäßie starken Messerkörperteil 2 abfloß. Gleichzeitig mit den punktförmigen Außenschweißungen 3 wurden zwischen deren Stellen punktförmige Innenschweißungen 4 in der von dem Messerkörperteil 2 und dem Schneidenteil 1 gebildeten Ecke durchgefUhrt. Das in der eben beschriebenen Weise erzeugte Stanzmesser ist somit ohne spanabhebender Bearbeitung und ohne Wärmebehandlung hergestellt.This punch knife is made up of a cutting part 1 and one of the same surrounding knife body part 2 composed. The cutting part 1 protrudes in one Direction with the same cutting edge 1 'opposite the knife body part 2. In the in the other direction, however, the knife body part 2 faces the cutting part 1 before. The knife body part 2 consists of a steel with a strength between 30 and 9o kp / mm2 and lUa bar steel with a normal cold bending machine to the desired Curved shape. The cutting part 1 consists of a steel with a body hardness between 40 and 50 HRc and was also made from steel bars with a normal cold bending machine in the hard state bent to the shape in question. Of the Cutting part 1 and the knife body part 2 were after bending to the desired Form held together by means of a welding device so that the required knife height could be achieved exactly. Then the knife body part 2 with the cutting part 1 in its neutral fiber by punctiform outer welds 3 each at a distance from about 20 to 40 mm connected to each other. (These welds were done exactly in the neutral grain of the cutting part 1 in order to avoid any distortion of the same.) The heat from the welding changed the cutting part 1 only slightly, because the main part of the heat generated by spot welding very quickly in the relatively strong knife body part 2 flowed off. Simultaneously with the punctiform External welds 3 were punctiform internal welds between their locations 4 carried out in the corner formed by the knife body part 2 and the cutting part 1. The punching knife produced in the manner just described is thus without a cutting tool Machining and made without heat treatment.

Claims (4)

Patentansprüche : 1) Stanzmesser, insbesondere zum Herausstanzen von Schuhs S en, mit indrischen Seitenflächen, dadurch gekennzeichnet, daß datStanzmesser aus einem Schneidenteil (1) und einem denselben umgebenden Messerkörperteil (2) zusammengesetzt ist, wobei der Schneidenteil (1) in einer Richtung mit seiner Schneide (1') gegenUber dem Messerkörperteil (2) hervorragt - wie an sich bekannt - und daß Uberdies in der anderen Richtung der Messerkörperteil (2) gegenUber dem Schneidenteil (1) vorsteht. Claims: 1) punching knife, especially for punching out von Schuhs S en, with Indian side faces, characterized in that the punching knife from a cutting edge part (1) and a knife body part (2) surrounding the same is assembled, wherein the cutting part (1) in one direction with its cutting edge (1 ') protrudes from the knife body part (2) - as is known per se - and that Moreover, in the other direction, the knife body part (2) opposite the cutting part (1) protrudes. 2) Stanzmesser nach Anspruch 1, dadurch gekennzeichnet, daß der Messerkörperteil (2) aus einem Stahl mit einer Festigkeit zwischen 30 und 9o kp/mm2 und der Schneidenteil (1) aus einem Stahl mit einer Härte zwischen 40 und 50 HRc ist.2) punch knife according to claim 1, characterized in that the knife body part (2) made of a steel with a strength between 30 and 9o kp / mm2 and the cutting part (1) is made of a steel with a hardness between 40 and 50 HRc. 3) Stanzmesser nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Messerkörperteil (2) und der Schneidenteil (1) in dessen neutraler Faser durch punktförmige Außenschweißungen (3) jeweils im Abstand von etwa 20 bis 40 mm miteinander verbunden und zwischen denselben punktförmige Innenschweißungen (4) vorhanden sind.3) punching knife according to claim 1 or 2, characterized in that the knife body part (2) and the cutting part (1) through its neutral fiber punctiform external welds (3) each at a distance of about 20 to 40 mm from one another connected and between the same punctiform internal welds (4) are present. 4) Verfahren zur Herstellung des Stanzmessers nach Anspruch 3, dadurch gekennzeichnet, daß sowohl der Messerkörpertell als auch der Schneidenteil aus Stabstahl mit einer normalen Kaltblegemaschine auf die gewiinschte Form gebogen werden, daß Messerkörperteil und Schneidenteil in der gewUnschten gegenseitigen Lage zusammengehalten werden, daß der Messerkörperteil mit dem Schneidenteil in dessen neutraler Faser durch punktförmige Außenschweißungen jeweils im Abstand von etwa 20 bis 40 mm miteinander verbunden werden und daß zwischen deren Stellen punktrörmige Innenschweißungen in der vom Messerkörperteil und vom Schneidenteil gebildeten Ecke durchgefuhrt werden.4) A method for producing the punch knife according to claim 3, characterized characterized in that both the knife body part and the cutting part are made of bar steel be bent to the desired shape with a normal cold-forming machine so that Knife body part and cutting part held together in the desired mutual position that the knife body part with the cutting part in its neutral fiber by spot-shaped external welds at a distance of about 20 to 40 mm from one another are connected and that between their points punctiform internal welds in the corner formed by the cutter body part and the cutting part.
DE19772740981 1977-09-12 1977-09-12 Punching knife Ceased DE2740981B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE19772740981 DE2740981B2 (en) 1977-09-12 1977-09-12 Punching knife
AT643278A AT370300B (en) 1977-09-12 1978-09-06 PUNCHING KNIFE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19772740981 DE2740981B2 (en) 1977-09-12 1977-09-12 Punching knife

Publications (2)

Publication Number Publication Date
DE2740981A1 true DE2740981A1 (en) 1979-03-15
DE2740981B2 DE2740981B2 (en) 1980-08-07

Family

ID=6018723

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19772740981 Ceased DE2740981B2 (en) 1977-09-12 1977-09-12 Punching knife

Country Status (2)

Country Link
AT (1) AT370300B (en)
DE (1) DE2740981B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0099004A1 (en) * 1982-07-02 1984-01-25 Stanzmesserfabrik Küsnacht AG Cutting die, in particular for contour-cutting, and a method of manufacturing it
FR2611572A1 (en) * 1987-02-25 1988-09-09 Septi Sarl Steel section which can be rolled or pressed continuously for producing an industrial hollow punch
AT409494B (en) * 1996-08-30 2002-08-26 Boehler Ybbstal Band Gmbh & Co Stamping-out tool for e.g. leather soles, comprises carrier strip recessed to accommodate cutter strip held at spaced weld points, and bodily bend to shape
CN112296618A (en) * 2020-09-16 2021-02-02 南通西土瓦工贸有限公司 Manufacturing process of cutting die

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT383536B (en) * 1985-06-27 1987-07-10 Ver Edelstahlwerke Ag MACHINE KNIVES, ESPECIALLY FOR CUTTING, BOWLING OR THE LIKE. FROM WOOD, PAPER OR THE LIKE. AND METHOD FOR PRODUCING THE SAME
DE4110039C3 (en) * 1991-03-27 1997-04-03 Wilhelm Aichele Chopping knife

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB803761A (en) * 1956-04-06 1958-10-29 British United Shoe Machinery Improvements in or relating to press knives suitable for cutting leather or similar sheet materials
DE1989425U (en) * 1968-02-08 1968-07-18 Chrobok Hoffmann K G PUNCH KNIFE WITH A CLOSED EDGE.
DE1778700A1 (en) * 1968-05-24 1971-08-19 Wilhelm Weller Moebelfabrik Device for attaching shelves in closets and the like.
DE7132214U (en) * 1971-08-24 1971-12-09 Fauth E PUNCHING TOOL
DE2142234A1 (en) * 1971-08-24 1973-03-22 Fauth Fa Emil PUNCHING TOOL
DE2318384A1 (en) * 1973-03-20 1974-10-03 Boehler & Co Ag Geb PROFILE STEEL FOR THE MANUFACTURE OF CUTTING AND PUNCHING TOOLS

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB803761A (en) * 1956-04-06 1958-10-29 British United Shoe Machinery Improvements in or relating to press knives suitable for cutting leather or similar sheet materials
DE1989425U (en) * 1968-02-08 1968-07-18 Chrobok Hoffmann K G PUNCH KNIFE WITH A CLOSED EDGE.
DE1778700A1 (en) * 1968-05-24 1971-08-19 Wilhelm Weller Moebelfabrik Device for attaching shelves in closets and the like.
DE7132214U (en) * 1971-08-24 1971-12-09 Fauth E PUNCHING TOOL
DE2142234A1 (en) * 1971-08-24 1973-03-22 Fauth Fa Emil PUNCHING TOOL
DE2318384A1 (en) * 1973-03-20 1974-10-03 Boehler & Co Ag Geb PROFILE STEEL FOR THE MANUFACTURE OF CUTTING AND PUNCHING TOOLS

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
DE-AN D 18174 X/39a bekanntgemacht am 16.8.1956 *
Verpackungs-Folien-Papiere, 1964, 7. Sonderausgabe, S. 44,46,47 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0099004A1 (en) * 1982-07-02 1984-01-25 Stanzmesserfabrik Küsnacht AG Cutting die, in particular for contour-cutting, and a method of manufacturing it
FR2611572A1 (en) * 1987-02-25 1988-09-09 Septi Sarl Steel section which can be rolled or pressed continuously for producing an industrial hollow punch
AT409494B (en) * 1996-08-30 2002-08-26 Boehler Ybbstal Band Gmbh & Co Stamping-out tool for e.g. leather soles, comprises carrier strip recessed to accommodate cutter strip held at spaced weld points, and bodily bend to shape
CN112296618A (en) * 2020-09-16 2021-02-02 南通西土瓦工贸有限公司 Manufacturing process of cutting die

Also Published As

Publication number Publication date
AT370300B (en) 1983-03-10
ATA643278A (en) 1982-08-15
DE2740981B2 (en) 1980-08-07

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