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EP0391299A2 - Teleskopischer Abfallauswerfer für eine Blätterbearbeitungsvorrichtung - Google Patents

Teleskopischer Abfallauswerfer für eine Blätterbearbeitungsvorrichtung Download PDF

Info

Publication number
EP0391299A2
EP0391299A2 EP19900106265 EP90106265A EP0391299A2 EP 0391299 A2 EP0391299 A2 EP 0391299A2 EP 19900106265 EP19900106265 EP 19900106265 EP 90106265 A EP90106265 A EP 90106265A EP 0391299 A2 EP0391299 A2 EP 0391299A2
Authority
EP
European Patent Office
Prior art keywords
needle
hollow cylindrical
cylindrical body
bore
tool according
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
EP19900106265
Other languages
English (en)
French (fr)
Other versions
EP0391299A3 (de
EP0391299B1 (de
Inventor
Marcel Yerly
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.)
Bobst Mex SA
Original Assignee
Bobst SA
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 Bobst SA filed Critical Bobst SA
Publication of EP0391299A2 publication Critical patent/EP0391299A2/de
Publication of EP0391299A3 publication Critical patent/EP0391299A3/de
Application granted granted Critical
Publication of EP0391299B1 publication Critical patent/EP0391299B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • B26D7/18—Means for removing cut-out material or waste
    • B26D7/1818—Means for removing cut-out material or waste by pushing out
    • 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
    • B26D7/18—Means for removing cut-out material or waste
    • B26D2007/1872—Means for removing cut-out material or waste using breakaway pins
    • 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
    • Y10T225/00—Severing by tearing or breaking
    • Y10T225/30—Breaking or tearing apparatus
    • 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
    • Y10T225/00—Severing by tearing or breaking
    • Y10T225/30—Breaking or tearing apparatus
    • Y10T225/329—Plural breakers

Definitions

  • the present invention relates to a telescopic tool, for a waste ejection station in a sheet-working machine, comprising a hollow cylindrical body in which engages the rear part of a needle having a flange, one of the faces of which bears against the lower part of a first bore of the hollow cylindrical body and the other face of which is in contact with one end of a compression spring housed in said first bore closed at its upper end by a plug serving tool fixing member and support piece for the other end of the compression spring, the needle being guided with play in said plug and in the lower part of the hollow cylindrical body from which the front part protrudes of said needle.
  • these frames are moved in an alternating vertical movement intended to apply the ends of the upper and lower needles to the surface of the waste, so as to first pinch it then, in a second operation, to accompany it downwards in a plane different from the plane of the sheet and then, to release it by moving the frames away again and, there, the needles, so that the waste can be removed from the sheet.
  • the needle therefore moves back and forth in its hollow cylindrical body.
  • the sheets contain a large number of wastes to be ejected and that, consequently, the upper and lower frames will be equipped with a large number of telescopic tools. It is obvious that the mass represented by the frames and the tools will be significant and that, in the case of rapid presses which are used in this field, the inertial forces brought into play will be significant, and that the control of the press should be sized accordingly.
  • the hollow cylindrical bodies of the tools have been made of aluminum or an aluminum alloy, and the needles themselves have been made of steel.
  • the use of such telescopic tools mounted in their lower and upper frames has many disadvantages when it is desired to further increase the speed of production of the press.
  • the first of these drawbacks lies in the significant noise resulting from the arrival in contact of the steel needles with the waste to be treated.
  • the second disadvantage relates to the wear, by matting, of the tips of the needles, which, in certain cases of advanced wear, causes, by the decomposition of the force of support of the tips of the needles on the waste, jamming of the needle in the bores of the hollow cylindrical body and of the closure cap thereof. It has, in fact, been noticed, during production, that the point of the needles deformed in such a way that it could have an inclined plane. It has even been observed, in certain cases, a total rupture of the needle due to the significant forces which it underwent following the wear of its end.
  • the skew wear of the needle point can come either from a bad alignment between the upper needle and the lower needle, or from a defective assembly, for example skew, of the telescopic tools.
  • a third disadvantage is represented by the relatively large mass of each of the telescopic tools which obliges the manufacturer of the cutting press to use highly dimensioned control members which, by the evidence, has an unfavorable influence on the increase in speed. of production sought.
  • the object of the invention is to provide a solution to existing problems, without complicating current construction principles and without increasing, to an unsustainable extent, the price of a telescopic tool. It has, in particular, the advantage of ensuring perfect contact of the end of the needle with the waste to be ejected while avoiding the risk of jamming thereof, this without taking into account the angle of action thereof against the waste.
  • the elastic quality of the deformable element reduces, to an appreciable extent, the wear of the contact faces of the tool with the waste, which has a non-negligible influence on the lifetime of the latter. while ensuring better pinching of the waste to be ejected.
  • FIG. 1 is a schematic longitudinal section through a telescopic tool 1 which comprises a hollow cylindrical body 2, preferably of synthetic material, in which is machined a first bore 3 in the extension of which is machined a second bore 4 having a diameter smaller.
  • the first bore has, at its upper end, a thread 5 into which a plug 6 is screwed.
  • the plug 6 is arranged so as to have a thread 7 intended for fixing the telescopic tool in the supports of a frame d ejection (not shown).
  • This plug 6 also has a guide bore 8 for the rear part 9a of the needle 10. Two holes 11 and 12 open at the top of the guide bore 8.
  • the needle 10 has a rear part 9a and a front part 9b, separated by a flange 13.
  • the front part 9b of the needle 10 is composed of a rigid element 14 and a deformable element 15.
  • the rear part 9a of the needle 10 is equipped with a compression spring 16 which rests, on the one hand, on the face 17 of the flange 13 and, on the other hand, against the face 18 of the plug 6.
  • the front part 9b of the needle 10 is guided in the second bore 4 and it is provided with a noise damping member 19 placed between the face 20 of the flange 13 and the lower part 21 of the first bore 3.
  • the rear parts 9a and front 9b of the needle 10 slide freely in the two bores 4 and 8.
  • the rigid element 14 of the front part 9b of the needle 10 is advantageously produced by an aluminum rod whose surface has been hardened by an eloxage or anodizing treatment. It should be noted that the entire needle can be treated, so as to present a hardened surface.
  • the deformable element 15 can, for its part, be an elastomer such as polyurethane and be fixed to the rigid element by vulcanization or optionally by bonding or any other permanent fixing means.
  • any other elastomer such as natural or synthetic rubber, polyacrylates, neoprene, etc.
  • the elastomer is replaced by any other element having similar elasticity characteristics.
  • the noise damping member 19 is produced, in this embodiment, from an elastomer ring which can, for example, have the same characteristics as the materials used to manufacture the deformable element 15.

Landscapes

  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Details Of Cutting Devices (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Paper (AREA)
  • Filters For Electric Vacuum Cleaners (AREA)
  • Making Paper Articles (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Discharge By Other Means (AREA)
  • Presses And Accessory Devices Thereof (AREA)
EP19900106265 1989-04-07 1990-04-02 Teleskopischer Abfallauswerfer für eine Blätterbearbeitungsvorrichtung Expired - Lifetime EP0391299B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1313/89A CH679024A5 (de) 1989-04-07 1989-04-07
CH1313/89 1989-04-07

Publications (3)

Publication Number Publication Date
EP0391299A2 true EP0391299A2 (de) 1990-10-10
EP0391299A3 EP0391299A3 (de) 1991-09-18
EP0391299B1 EP0391299B1 (de) 1994-05-25

Family

ID=4207521

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900106265 Expired - Lifetime EP0391299B1 (de) 1989-04-07 1990-04-02 Teleskopischer Abfallauswerfer für eine Blätterbearbeitungsvorrichtung

Country Status (11)

Country Link
US (1) US5065926A (de)
EP (1) EP0391299B1 (de)
JP (1) JPH0688238B2 (de)
AT (1) ATE106033T1 (de)
AU (1) AU624698B2 (de)
BR (1) BR9001632A (de)
CA (1) CA2014024C (de)
CH (1) CH679024A5 (de)
DE (1) DE69009094T2 (de)
DK (1) DK0391299T3 (de)
ES (1) ES2055818T3 (de)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995019246A1 (en) * 1994-01-18 1995-07-20 Oetlinger Tool Engineering Co., Inc. Presser assembly
US5529565A (en) * 1994-01-18 1996-06-25 Oetlinger; Frank E. Presser assembly
WO1997027032A1 (en) * 1996-01-26 1997-07-31 Kimberly-Clark Worldwide, Inc. A knife shaft assembly
US5826475A (en) * 1996-01-26 1998-10-27 Kimberly-Clark Worldwide, Inc. Knife shaft assembly
WO1999051405A1 (de) * 1998-04-02 1999-10-14 Franz Vossen Vorrichtung zum entfernen von ausbrechteilen aus einem werkstoffbogen oder dergleichen
US6055897A (en) * 1996-06-21 2000-05-02 Kimberly-Clark Worldwide, Inc. Die cutting insert for a rotary die cutter and the die itself
US6250189B1 (en) * 1996-06-21 2001-06-26 Kimberly-Clark Worldwide, Inc. Rotary die cutter
EP1312449A2 (de) * 1998-04-02 2003-05-21 Franz Vossen Vorrichtung zum Entfernen von Ausbrechteilen aus einem Werkstoffbogen od.dgl.
US6966873B2 (en) 2001-12-26 2005-11-22 Blanking Systems, Inc. Flush mounted presser assembly
US7128703B2 (en) 2001-12-26 2006-10-31 Blanking Systems, Inc. Flush mounted presser assembly
US8770103B2 (en) 2009-12-08 2014-07-08 Blanking Systems, Inc. Presser assembly having a presser and an improved mounting arrangement for mounting a pressing member to the presser
CN107639881A (zh) * 2017-08-22 2018-01-30 深圳九星印刷包装集团有限公司 废料清除装置
US12194706B2 (en) 2023-02-03 2025-01-14 Blanking Systems, Inc. Presser assembly with magnetic biasing

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8186554B2 (en) * 2008-07-16 2012-05-29 Powernail Company Tapered guide bushing for reciprocating driver and tool incorporating same
KR100937238B1 (ko) * 2009-09-18 2010-01-18 주식회사 화인알텍 프레스용 피어싱펀치 구조
US8979723B2 (en) * 2010-10-08 2015-03-17 Michael P. Tarka Flat presser
CN110153570B (zh) * 2019-06-14 2020-11-06 德清泰鑫金属制品有限公司 一种钣金激光切割机
CN111136722A (zh) * 2020-01-03 2020-05-12 西南石油大学 一种用于碳纤维复合材料制孔的刀具及方法
US12257805B2 (en) 2023-01-18 2025-03-25 Blanking Systems, Inc. Spot presser assembly

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1334014A (en) * 1971-08-20 1973-10-17 Simon Ltd Henry Stripping dies for sheet cutting or blanking presses
DE2158907B2 (de) * 1971-11-27 1975-01-30 Wupa-Maschinenfabrik Gmbh & Co Kg, 4057 Brueggen Verfahren und Vorrichtung zum Ausbrechen vorgestanzter Materialstücke aus bogenförmigen Materialbahnen
US4261237A (en) * 1979-03-16 1981-04-14 Houdaille Industries, Inc. Rigidly supported molded plastics material punch guide and stripper

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2768560A (en) * 1954-06-23 1956-10-30 Strongleaf Paper Corp Apparatus for reinforcing and punching sheets
US3552615A (en) * 1968-07-09 1971-01-05 Robert H Murray Scoring device for punching and removing chips from computer punch cards
US3956974A (en) * 1974-04-26 1976-05-18 Friedrich Schroter Device for breaking out scrap pieces from a punched sheet
CH605078A5 (de) * 1974-12-31 1978-09-29 Siegfried Harcuba
DE3165302D1 (en) * 1980-03-20 1984-09-13 Deritend Eng Co Stripper
US4691602A (en) * 1981-09-14 1987-09-08 Edward Schlueter Punch and ejector assembly
US4867366A (en) * 1984-10-26 1989-09-19 Kleinholz Edward O Pneumatic fastener-driving tool and method
US4723466A (en) * 1985-06-26 1988-02-09 Pottorff Earl T Self-sharpening hole punch for packaging with resilient waste expelling mechanism

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1334014A (en) * 1971-08-20 1973-10-17 Simon Ltd Henry Stripping dies for sheet cutting or blanking presses
DE2158907B2 (de) * 1971-11-27 1975-01-30 Wupa-Maschinenfabrik Gmbh & Co Kg, 4057 Brueggen Verfahren und Vorrichtung zum Ausbrechen vorgestanzter Materialstücke aus bogenförmigen Materialbahnen
US4261237A (en) * 1979-03-16 1981-04-14 Houdaille Industries, Inc. Rigidly supported molded plastics material punch guide and stripper

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995019246A1 (en) * 1994-01-18 1995-07-20 Oetlinger Tool Engineering Co., Inc. Presser assembly
US5529565A (en) * 1994-01-18 1996-06-25 Oetlinger; Frank E. Presser assembly
US5599269A (en) * 1994-01-18 1997-02-04 Oetlinger; Frank E. Presser assembly
US5766123A (en) * 1994-01-18 1998-06-16 Oetlinger; Frank E. Presser assembly
WO1997027032A1 (en) * 1996-01-26 1997-07-31 Kimberly-Clark Worldwide, Inc. A knife shaft assembly
US5826475A (en) * 1996-01-26 1998-10-27 Kimberly-Clark Worldwide, Inc. Knife shaft assembly
US6250189B1 (en) * 1996-06-21 2001-06-26 Kimberly-Clark Worldwide, Inc. Rotary die cutter
US6055897A (en) * 1996-06-21 2000-05-02 Kimberly-Clark Worldwide, Inc. Die cutting insert for a rotary die cutter and the die itself
WO1999051405A1 (de) * 1998-04-02 1999-10-14 Franz Vossen Vorrichtung zum entfernen von ausbrechteilen aus einem werkstoffbogen oder dergleichen
EP1312449A2 (de) * 1998-04-02 2003-05-21 Franz Vossen Vorrichtung zum Entfernen von Ausbrechteilen aus einem Werkstoffbogen od.dgl.
EP1312449A3 (de) * 1998-04-02 2003-06-25 Franz Vossen Vorrichtung zum Entfernen von Ausbrechteilen aus einem Werkstoffbogen od.dgl.
US6966873B2 (en) 2001-12-26 2005-11-22 Blanking Systems, Inc. Flush mounted presser assembly
US7128703B2 (en) 2001-12-26 2006-10-31 Blanking Systems, Inc. Flush mounted presser assembly
US8770103B2 (en) 2009-12-08 2014-07-08 Blanking Systems, Inc. Presser assembly having a presser and an improved mounting arrangement for mounting a pressing member to the presser
US9579816B2 (en) 2009-12-08 2017-02-28 Blanking Systems, Inc. Presser assembly having a presser and an improved mounting arrangement for mounting a pressing member to the presser
CN107639881A (zh) * 2017-08-22 2018-01-30 深圳九星印刷包装集团有限公司 废料清除装置
CN107639881B (zh) * 2017-08-22 2019-11-12 深圳九星印刷包装集团有限公司 废料清除装置
US12194706B2 (en) 2023-02-03 2025-01-14 Blanking Systems, Inc. Presser assembly with magnetic biasing

Also Published As

Publication number Publication date
EP0391299A3 (de) 1991-09-18
CH679024A5 (de) 1991-12-13
CA2014024C (en) 1994-06-07
EP0391299B1 (de) 1994-05-25
JPH02292200A (ja) 1990-12-03
BR9001632A (pt) 1991-05-07
JPH0688238B2 (ja) 1994-11-09
AU624698B2 (en) 1992-06-18
US5065926A (en) 1991-11-19
DK0391299T3 (da) 1994-09-05
AU5307390A (en) 1990-10-11
ES2055818T3 (es) 1994-09-01
ATE106033T1 (de) 1994-06-15
DE69009094D1 (de) 1994-06-30
CA2014024A1 (en) 1990-10-07
DE69009094T2 (de) 1994-09-15

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