EP0661118A1 - Verfahren zum Stanzen eines Rohlings aus einem Metallband für die Herstellung eines Scharniers für Möbelstücke - Google Patents

Verfahren zum Stanzen eines Rohlings aus einem Metallband für die Herstellung eines Scharniers für Möbelstücke Download PDF

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Publication number
EP0661118A1
EP0661118A1 EP94203505A EP94203505A EP0661118A1 EP 0661118 A1 EP0661118 A1 EP 0661118A1 EP 94203505 A EP94203505 A EP 94203505A EP 94203505 A EP94203505 A EP 94203505A EP 0661118 A1 EP0661118 A1 EP 0661118A1
Authority
EP
European Patent Office
Prior art keywords
blank
station
punching
strip
metal strip
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.)
Granted
Application number
EP94203505A
Other languages
English (en)
French (fr)
Other versions
EP0661118B1 (de
Inventor
Gaetano Donatiello
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.)
Digiemme Srl
Original Assignee
Digiemme Srl
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=11367319&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0661118(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Digiemme Srl filed Critical Digiemme Srl
Priority to SI9430291T priority Critical patent/SI0661118T1/xx
Publication of EP0661118A1 publication Critical patent/EP0661118A1/de
Application granted granted Critical
Publication of EP0661118B1 publication Critical patent/EP0661118B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
    • B21D28/06—Making more than one part out of the same blank; Scrapless working

Definitions

  • This invention relates to a method for punching from a metal strip a blank intended, particularly but not exclusively, for manufacturing part of a furniture hinge.
  • the invention also relates to products obtained by said method.
  • the large-scale production of parts by initially blanking a metal strip always involves solving the technical problem of material scrap, which should be as little as possible so as not to excessively affect the cost of the finished article.
  • the systems mostly used are those in which the blank is punched out in accordance with a pattern such that the blanked shapes copenetrate each other, the blanking operation being effected on a metal strip moving either linearly or with zig-zag movement.
  • the general object of the present invention is to obviate the drawbacks of the known art by providing a method for punching a blank from metal strip such as to leave practically no material scrap.
  • the reference numeral 10 indicates a metal strip which, in one embodiment of the method of the invention, is made to advance stepwise in the direction of the arrow F by any equipment suitable for the purpose, which being well known to the expert of the art is not shown herein in detail.
  • a blank defined by the hatched region 11 of Figure 1 is punched from the strap 10 without leaving any scrap at all.
  • the blank 11 obtained is shown in Figure 1a separated from the strip 10 and can be of different configurations depending on the part to be manufactured.
  • the blank 11 separated from the strip 10 is conveyed to a manipulation station as shown in Figure 1a where it is rotated, for example through 90°, into the position shown in Figure 1b suitable for a subsequent operation, such as drawing.
  • the blank 11 could also be orientated during its conveying from 1 to 1a, depending on its configuration and/or subsequent requirements.
  • the strip 10 is advanced longitudinally through a step X in the direction of the arrow F and shifted laterally through a step Y in a direction perpendicular thereto in accordance with the arrow F1, into the position shown in Figure 2 in which a second blank defined by the hatched region 12 is punched out without leaving any scrap.
  • the strip 10 is advanced in the direction of the arrow F from the position shown in Figure 1 to the position shown in Figure 2 through a distance X equal to one half the length of the blank 12 to be obtained, the lateral shift in the direction of the arrow F1 being through a distance Y which varies according to the configuration of the blank and of the final piece to be formed.
  • the blank 12, separated from the strip 10 as shown in Figure 2a, is then rotated, for example through 90°, into the position shown in Figure 2b suitable for a subsequent operation, such as a drawing operation.
  • the strip 10 is advanced longitudinally through a step X in the direction of the arrow F and shifted laterally through a step Y in a direction perpendicular thereto in accordance with the arrow F2, into the position shown in Figure 3 in which a third blank defined by the hatched region 13 is punched out without leaving any scrap.
  • the blank 13 is then conveyed and manipulated into the positions shown in Figures 3a and 3b exactly as in the case of the blanks 11 and 12. This third stage is identical to the first.
  • Figures 4 and 4a show a second embodiment of the method of the invention in which the strip 10 is fed in the direction of the arrow F3, this being perpendicular to the direction indicated by the arrow F4 in which the punched blank 14 is advanced.
  • the blank 14 punched out in the blanking station of Figure 4 is removed and transferred to a second station shown in Figure 4a already in a position suitable for the next operation.
  • Figures 5, 5a, 5b show an embodiment of the method in which the blank 15 punched from the strip 10 is removed and transferred to the positioning station of Figure 5a in which the blank 15 is rotated through 180° in accordance with the arrow F5, into the position shown in Figure 5b suitable for the next operation.
  • Figures 6 and 6a show an embodiment of the method analogous to that of Figures 5-5b, but in which the blank 16 punched from the strip 10 is removed and during its transfer to the next station shown in Figure 6a is orientated in accordance with the arrow F6 into a position already suitable for the next operation.
  • the die assembly is not shown in detail as its construction lies within the scope of the expert of the art.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Punching Or Piercing (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Hinges (AREA)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)
EP94203505A 1993-12-14 1994-12-02 Verfahren zum Stanzen eines Rohlings aus einem Metallband für die Herstellung eines Scharniers für Möbelstücke Expired - Lifetime EP0661118B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI9430291T SI0661118T1 (en) 1993-12-14 1994-12-02 Method for punching from metal strip a blank intended, particularly but not exclusively, for producing a furniture hinge casing

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT93MI002608A IT1264985B1 (it) 1993-12-14 1993-12-14 Procedimento per la tranciatura da nastro metallico di uno sbozzato, destinato particolarmente ma non esclusivamente alla produzione di una
ITMI932608 1993-12-14

Publications (2)

Publication Number Publication Date
EP0661118A1 true EP0661118A1 (de) 1995-07-05
EP0661118B1 EP0661118B1 (de) 1999-11-10

Family

ID=11367319

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94203505A Expired - Lifetime EP0661118B1 (de) 1993-12-14 1994-12-02 Verfahren zum Stanzen eines Rohlings aus einem Metallband für die Herstellung eines Scharniers für Möbelstücke

Country Status (6)

Country Link
EP (1) EP0661118B1 (de)
AT (1) ATE186483T1 (de)
DE (1) DE69421601T2 (de)
ES (1) ES2138644T3 (de)
IT (1) IT1264985B1 (de)
SI (1) SI0661118T1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0770436A1 (de) 1995-10-27 1997-05-02 DI.GI.EMME S.r.l. Verfahren zum Stanzen eines Rohlings aus einem Metallband für die automatische Herstellung von Bestandteilen aus Metall
EP1197276A1 (de) * 2000-10-13 2002-04-17 DI.GI.EMME S.r.l. Verfahren zum Stanzen eines Zuschnittes aus einem Metallband
EP1316373A1 (de) * 2001-11-07 2003-06-04 DI.GI.EMME S.r.l. Verfahren und Vorrichtung zum nacheinander Stanzen eines Halbzeuges oder eines Rohlings aus einem Metallband

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1138931A (en) * 1966-03-02 1969-01-01 Karlsruhe Augsburg Iweka Apparatus for punching sheet material
GB1193666A (en) * 1966-10-14 1970-06-03 Schuler G M B H L Punching Device for Presses.
DE2412260A1 (de) * 1974-03-14 1975-09-18 Guenter Zierpka Vorrichtung zum schneiden und positionieren von platinen in pressen
DE2750940A1 (de) * 1977-11-15 1979-05-17 Krupp Gmbh Vorrichtung zur herstellung von platinen mit zwei ortsfest angeordneten, wechselweise mit einem blechband beschickbaren schneidstationen
DE4232211A1 (de) * 1991-09-25 1993-04-01 Gi Emme S R L Di Verfahren zum schneiden eines rohlings aus einem metallband

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1138931A (en) * 1966-03-02 1969-01-01 Karlsruhe Augsburg Iweka Apparatus for punching sheet material
GB1193666A (en) * 1966-10-14 1970-06-03 Schuler G M B H L Punching Device for Presses.
DE2412260A1 (de) * 1974-03-14 1975-09-18 Guenter Zierpka Vorrichtung zum schneiden und positionieren von platinen in pressen
DE2750940A1 (de) * 1977-11-15 1979-05-17 Krupp Gmbh Vorrichtung zur herstellung von platinen mit zwei ortsfest angeordneten, wechselweise mit einem blechband beschickbaren schneidstationen
DE4232211A1 (de) * 1991-09-25 1993-04-01 Gi Emme S R L Di Verfahren zum schneiden eines rohlings aus einem metallband

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0770436A1 (de) 1995-10-27 1997-05-02 DI.GI.EMME S.r.l. Verfahren zum Stanzen eines Rohlings aus einem Metallband für die automatische Herstellung von Bestandteilen aus Metall
EP1197276A1 (de) * 2000-10-13 2002-04-17 DI.GI.EMME S.r.l. Verfahren zum Stanzen eines Zuschnittes aus einem Metallband
EP1316373A1 (de) * 2001-11-07 2003-06-04 DI.GI.EMME S.r.l. Verfahren und Vorrichtung zum nacheinander Stanzen eines Halbzeuges oder eines Rohlings aus einem Metallband

Also Published As

Publication number Publication date
ES2138644T3 (es) 2000-01-16
ITMI932608A0 (it) 1993-12-14
DE69421601D1 (de) 1999-12-16
ITMI932608A1 (it) 1995-06-14
ATE186483T1 (de) 1999-11-15
SI0661118T1 (en) 2000-02-29
IT1264985B1 (it) 1996-10-17
EP0661118B1 (de) 1999-11-10
DE69421601T2 (de) 2000-05-25

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