EP0432173B1 - Rotationsstanzmaschine - Google Patents

Rotationsstanzmaschine Download PDF

Info

Publication number
EP0432173B1
EP0432173B1 EP19890908686 EP89908686A EP0432173B1 EP 0432173 B1 EP0432173 B1 EP 0432173B1 EP 19890908686 EP19890908686 EP 19890908686 EP 89908686 A EP89908686 A EP 89908686A EP 0432173 B1 EP0432173 B1 EP 0432173B1
Authority
EP
European Patent Office
Prior art keywords
punching
punches
groove
tool
bushings
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.)
Expired - Lifetime
Application number
EP19890908686
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0432173A1 (de
Inventor
Horst Berger
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.)
Schober GmbH Werkzeug und Maschinenbau
Original Assignee
Schober GmbH Werkzeug und Maschinenbau
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 Schober GmbH Werkzeug und Maschinenbau filed Critical Schober GmbH Werkzeug und Maschinenbau
Priority to AT89908686T priority Critical patent/ATE81805T1/de
Publication of EP0432173A1 publication Critical patent/EP0432173A1/de
Application granted granted Critical
Publication of EP0432173B1 publication Critical patent/EP0432173B1/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
    • B21D28/24—Perforating, i.e. punching holes
    • B21D28/36—Perforating, i.e. punching holes using rotatable work or tool holders
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/929—Tool or tool with support
    • Y10T83/9372—Rotatable type
    • Y10T83/9387—Punching tool
    • Y10T83/9389—Shear type
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/929—Tool or tool with support
    • Y10T83/9411—Cutting couple type
    • Y10T83/9423—Punching tool
    • Y10T83/9428—Shear-type male tool
    • Y10T83/943—Multiple punchings

Definitions

  • the invention relates to a pair of punching tools arranged in a rotary punching machine, with a circumferential punch tool carrying a punch on its circumference and a co-operating counter-tool cooperating therewith, on the circumference of which punching bushes serving as dies are fastened.
  • DE-PS 164 003 has disclosed a device which has pairs of rollers which are not e.g. are positively guided via stamps and punch sleeves. In the event of a malfunction, the problems mentioned above do not arise.
  • the object of the invention is to keep this damage as low as possible.
  • stamping tool and / or the counter tool between the individual stamps or punching bushes has a circumferentially extending groove which is radially recessed from the peripheral surface and whose depth is greater than the engagement of the stamp in the punching bushes and whose width is equal to or larger than the diameter of the stamp.
  • the advantage of the invention is that in the event of a malfunction, i.e. when stamps disengage from the punching bushes, the stamps run onto the punching bushes and the stamps and also the bushings can be damaged, but not the holes in which stamps or bushings are are arranged.
  • the punches protrude freely into the groove and meet no resistance there. Due to the groove between the punches or punching sleeves, the hole receiving them is somewhat deeper so that fragments cannot damage this hole. This makes it possible for new or revised rifles and / or punches to be reinserted into the bores without the entire tool having to be scrapped. This saves considerable costs and time.
  • the width of the groove is approximately 20% wider than the diameter of the stamp. This is a good compromise between the endeavors that To weaken the tool as little as possible due to the groove milled radially into the peripheral surface, but on the other hand to remove fragments of punches or bushings as well as possible.
  • the groove has oblique flanks that flare out the groove cross section.
  • This slope can, for example, run at an angle of 30 °. This facilitates the taking up of fragments in the groove and the removal of these fragments from the groove and also the removal of the fragments from the groove during the rotation of the tool.
  • the depth of the groove can be, for example, 1.5 times the punch engagement in the punch bushings.
  • the invention can be implemented in all tool pairs working in the rotary stamping method, in which dies with stamping dies converge in synchronism.
  • the invention is also independent of the material that is processed in the punching machine.
  • Tool pairs according to the invention can be installed for punching material webs in printing presses.
  • radially directed stamps 2 are rigidly attached to the circumference of a rotating disk-shaped stamping tool 1.
  • a counter tool 3 cooperating with the stamping tool 1 has punch bushings 4 serving as matrices on its periphery, which are fastened in the counter tool 3 by screws 5.
  • the punch bushings 4 are arranged in a bore 6 with a snug fit and have a central bore 7 into which the punches 2 are immersed, for example, 0.5 mm deep.
  • the punch bushings 4 have a shoulder 8 at one point on their circumference, into which the head 9 of the screw 5 enters when it is screwed into a threaded bore 10 of the counter tool.
  • the front, somewhat conically tapered end of the punch bushing 4, when it is fastened with the screw 5 in the bore 6, runs approximately flush with the peripheral surface 11 of the counter tool 3.
  • two rows of stamps and punch bushings running side by side are arranged on the circumference of the stamping tool and counter-tool.
  • a groove 12 runs in the circumferential direction of the counter tool, the width of which is slightly larger than the diameter of the punch.
  • the depth of the groove is greater than the engagement of the punches in the punch bushings 4, it can e.g. Be 0.6 to 0.8 mm deep. If a punch breaks or if the die pair disengages from the punch bushes at very high speeds, the punch bushes are damaged, but the remaining parts of the counter tool are not. After replacing the damaged punch sleeves, the counter tool is ready for use again.
  • the groove 12 can also accommodate small fragments without substantially damaging the peripheral surface of the two rotating tools working together. At least this groove 12 reduces damage to the circumference of the two tools working together when the punch breaks.
  • the groove has a cross section that tapers against the groove base 13, the flanks 14 of the groove run obliquely at an angle of approximately 30 °, the width of the groove on the groove base 13 is, for example, 5 mm, the punch diameter can be 4 mm and accordingly the bore 7 of the punching sleeves 4 mm plus an addition of 0.05 to 0.1 mm.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Forging (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Centrifugal Separators (AREA)
  • Control Of Electric Motors In General (AREA)
  • Punching Or Piercing (AREA)
EP19890908686 1988-08-10 1989-08-01 Rotationsstanzmaschine Expired - Lifetime EP0432173B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89908686T ATE81805T1 (de) 1988-08-10 1989-08-01 Rotationsstanzmaschine.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3827077 1988-08-10
DE3827077A DE3827077C1 (da) 1988-08-10 1988-08-10

Publications (2)

Publication Number Publication Date
EP0432173A1 EP0432173A1 (de) 1991-06-19
EP0432173B1 true EP0432173B1 (de) 1992-10-28

Family

ID=6360554

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890908686 Expired - Lifetime EP0432173B1 (de) 1988-08-10 1989-08-01 Rotationsstanzmaschine

Country Status (10)

Country Link
US (1) US5152209A (da)
EP (1) EP0432173B1 (da)
JP (1) JPH0632919B2 (da)
AT (1) ATE81805T1 (da)
DE (3) DE3827077C1 (da)
DK (1) DK170462B1 (da)
ES (1) ES2014380A6 (da)
FI (1) FI910370A0 (da)
NO (1) NO174578C (da)
WO (1) WO1990001381A1 (da)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4125543A1 (de) * 1991-08-01 1993-02-04 Ib Groenbjerg Vorrichtung zum einspannen eines lochstanzstiftes in einem werkzeug
US5429573A (en) * 1993-10-12 1995-07-04 Economy Machine & Tool Company Die lift tool for rotary punch machine
ATE225239T1 (de) * 2000-07-12 2002-10-15 Albis Verfharen sowie vorrichtung zum perforieren einer vliesstoffbahn
EP1501633B1 (en) * 2002-05-09 2008-06-04 Acco UK Limited Shredding machines
CN101745938A (zh) * 2008-12-12 2010-06-23 富准精密工业(深圳)有限公司 切孔刀模
RU2747203C1 (ru) * 2020-06-16 2021-04-29 Сергей Владимирович Суханов Линия для ротационно-прорезной обработки металлической полосы и ротационно-прорезное устройство для нее

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE164003C (da) *
DE627356C (de) * 1934-04-10 1936-03-13 August Koenig Dr Ing Vorrichtung zum Ausstanzen von Loechern in Iaufende Papierbahnen o. dgl.
US3205744A (en) * 1960-05-12 1965-09-14 William F Huck Rotary perforating device
US3106859A (en) * 1962-08-22 1963-10-15 Hamilton Tool Co Apparatus for rotarily punching webs of paper
US3194095A (en) * 1962-12-31 1965-07-13 Lloyd P Buck Punch confett remover
US3381560A (en) * 1965-10-21 1968-05-07 Webtron Corp Cutting and punching tool for continuous webs
US3813977A (en) * 1972-09-07 1974-06-04 Johns Manville Apparatus and method for cutting holes in roofing sheet material
US4108033A (en) * 1976-05-04 1978-08-22 Frito-Lay, Inc. Rotary cutting device for forming strips of shaped article preforms
DE3061473D1 (en) * 1979-03-12 1983-02-03 Fisher & Paykel Improvements in or relating to methods of and/or apparatus for punching holes in sheet metal
DE3319512C2 (de) * 1983-05-28 1985-07-25 Maschinenfabrik Goebel Gmbh, 6100 Darmstadt Einrichtung zum Perforieren von bahn- oder bogenförmigen Materialien
US4613321A (en) * 1985-09-06 1986-09-23 Preston Engravers, Inc. Diecutting roll system with improved scrap disposal capability
US4688459A (en) * 1985-11-14 1987-08-25 Didde Graphics Systems Corp. Punch retaining device

Also Published As

Publication number Publication date
NO910512L (no) 1991-02-08
ES2014380A6 (es) 1990-07-01
DK170462B1 (da) 1995-09-11
DE3827077C1 (da) 1989-09-14
NO174578C (no) 1994-06-01
DK21691A (da) 1991-02-08
US5152209A (en) 1992-10-06
JPH03504696A (ja) 1991-10-17
NO174578B (no) 1994-02-21
JPH0632919B2 (ja) 1994-05-02
NO910512D0 (no) 1991-02-08
DE58902575D1 (de) 1992-12-03
WO1990001381A1 (de) 1990-02-22
DE8817030U1 (de) 1991-12-12
DK21691D0 (da) 1991-02-08
ATE81805T1 (de) 1992-11-15
FI910370A0 (fi) 1991-01-24
EP0432173A1 (de) 1991-06-19

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