EP0105748A1 - Cutting device - Google Patents

Cutting device Download PDF

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Publication number
EP0105748A1
EP0105748A1 EP19830305942 EP83305942A EP0105748A1 EP 0105748 A1 EP0105748 A1 EP 0105748A1 EP 19830305942 EP19830305942 EP 19830305942 EP 83305942 A EP83305942 A EP 83305942A EP 0105748 A1 EP0105748 A1 EP 0105748A1
Authority
EP
European Patent Office
Prior art keywords
cutting element
cutting
working faces
working
cutting device
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Withdrawn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
EP19830305942
Other languages
German (de)
English (en)
French (fr)
Inventor
David Bruce Stewart
John Michael Casson Dickinson
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.)
WM R Stewart and Sons Hacklemakers Ltd
WM R Stewart and Sons Ltd
Original Assignee
WM R Stewart and Sons Hacklemakers Ltd
WM R Stewart and Sons Ltd
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 WM R Stewart and Sons Hacklemakers Ltd, WM R Stewart and Sons Ltd filed Critical WM R Stewart and Sons Hacklemakers Ltd
Publication of EP0105748A1 publication Critical patent/EP0105748A1/en
Withdrawn legal-status Critical Current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
    • B26D7/08—Means for treating work or cutting member to facilitate cutting
    • B26D7/14—Means for treating work or cutting member to facilitate cutting by tensioning the work

Definitions

  • This invention is directed towards the cutting of laminar materials such as paper, film, foil or the like presented in sheet or reel form.
  • the device can be adapted to make both straight and curved cuts but is limited to complete separation of the cut portion. It can be adapted to a rotary cutter or a flying cutter.
  • a moving blade co-operates with a fixed blade in a scissors action, a device commonly known as a Guillotine. This is very accurate but requires careful setting and maintenance and cannot easily be adapted to cut moving material. It is also noisy.
  • a second type has a moving blade co-operating with a fixed anvil. This requires very accurate setting and the blade requires very frequent sharpening.
  • the whole device can be arranged to move either in a reciprocating linear motion, or as two tangentially touching rollers which allow -the cutting of a moving film or sheet.
  • Neither of these known devices are suitable for cutting very thin or very flexible materials as the Guillotine type relies on the rigidity of the material to be cut for its action and the blade and anvil cutter is limited to material thicker than the setting accuracy of the blade.
  • cutting device usually requires external tensioning means for the material to be cut. This can limit the minimum size of the cut portion in some cases.
  • a web cutting device comprising two co-operating web tensioning means consisting of a pair of movable working faces and a reaction surface for co-operation with each working face together with a cutting element mounted so that at least during a cutting operation it is located between the working faces, the working faces being so arranged that when they are pressed against their respective reaction surfaces with the web to be cut located between the reaction surfaces and the working faces, the working faces will tend to move away from the cutting element thus tensioning the web and allowing the cutting element to come into contact with it.
  • the cutting element is mounted in a resilient carrier, spaced parts of which provide the working faces which tend to move away from the cutting element when they are pressed against the reaction surfaces with the web therebetween.
  • the relaxed state of the resilient carrier is such that the working edge of the cutting element is within the perimeter of the carrier as defined by s surface joining the working faces and moves in the working direction through that perimeter when the carrier is pressed against the reaction surfaces.
  • the reaction surfaces are preferably part of a rigid member which is preferably relieved to accommodate the working edge of the cutting element.
  • reaction surfaces have a low coefficient of friction relative to the material to be cut.
  • the resilient carrier is made of or coated with 'a material whose coefficient of friction with respect to the material to be cut is high at least on the surfaces which co-operate with the reaction surfaces.
  • the cutting element may be mounted between the reaction surfaces which are preferably rigid and preferably have a low coefficient of friction, and the working faces are mounted in another carrier, are resiliently deformable, and move away from the cutting element when the working faces are brought into engagement with them.
  • both the reaction surfaces and the working faces are formed from resilient material.
  • the cutting element may be a blade or an array of pointed pins defining a straight or curved cutting edge which may be angled or serrated to allow a progressive cutting action.
  • the working faces may be part of a member formed from rubber or similar elastomeric material of appropriate hardness.
  • the member should be so shaped as to cause a mutually-outward movement of the working faces in a direction perpendicular to the direction of movement of the cutting element and to the cutting axis.
  • the working faces could be part of a mechanism incorporating resilient members such as springs, together with swinging links and/or cam arrangements to achieve the same effect.
  • the cutting element can be arranged to move into and out of cutting positions in any suitable known manner. For example, a reciprocating motion perpendicular to the plane of the material to be cut can be used. Otherwise a rotary motion can be used for one part while a second rotary motion can be used for the second.
  • Either or both rotary motions can be replaced by a partly linear motion such as would be achieved by mounting the cutting element on a chain or a conveyor.
  • means would have to be provided to ensure that the pitch of the cutting element matches the pitch of the reaction members or, if the latter are mounted on the same carrier as the cutting element, of the working faces.
  • two reciprocating motions set at a shallow angle to the plane of the material could be used for cutting the material, e.g. a moving film or sheet while in motion.
  • a cutting assembly 1 consists of two resilient members 2a and 2b mounted on either side and secured to a cutting element 3 which may be a blade or an array of pins which can be secured by known means to a carrier plate 4 or to a pair of plates 4 and 4a.
  • the cutting assembly 1 is secured to a part 5 of a cutting machine (not shown in detail) adapted to impart a reciprocal up and down motion to the cutting assembly 1 in the sense of the double arrow 6.
  • the resilient members 2a and 2b are so shaped that their working faces 7a and 7b remain substantially parallel to the surface 8 of a rigid reaction member 9 when the cutting assembly 1 is moved into co-operation with it.
  • the shape of the resilient members 2a and 2b is such that the working faces 7a and 7b move away from each other along the face of the surface 8 of the reaction member 9 when the cutting assembly 1 is moved against the reaction member 9.
  • the surface 8 of the reaction member 9 may be split into two reaction surfaces by a groove 10 to avoid the edge of the cutting element 3 being damaged by contact with the reaction member 9.
  • the working faces 7a and 7b of the cutting assembly 1 are made of or coated with a material which has a higher coefficient of friction with respect to the material to be cut than the surface 8 of the reaction member 9 so as to ensure that the outward movement of the working faces 7a and 7b of the cutting assembly 1 induces sufficient tension in the material to be cut (not shown in Figure 1).
  • the cutting element 3 may be secured directly or indirectly in a one piece "bifurcated" resilient member 2a, 2b formed integral with or secured to the part 5, the resilient member being formed of a relatively rigid elastomeric material but having working faces 7a, 7b, or working face portions formed of a softer, more resilient elastomeric material, e.g. by a dual durometer extrusion process, so that, in use, they will still tension the material to be cut.
  • Figures 2 and 2a show a different embodiment of the invention wherein the reaction member 9 is also formed of resilient material shaped so that distortion by the resilient cutting assembly 1 causes the two reaction surfaces 8 of the reaction member 9 to stretch or move in the same sense as the working faces 7a and 7b of the cutting assembly 1.
  • the reaction member 9 may be set in a second part 14 of a cutting machine (not shown).
  • a laminar sheet of material 11 to be cut is placed between the cutting assembly 1 and the reaction member 9 by external means (not shown) and is gripped between the working faces 7a. and 7b of the cutting assembly 1 on one side and the surface 8 of the reaction member 9 on the other side as the cutting assembly 1 and the reaction member 9 move towards each other (as occurs in the construction shown in Figure 1).
  • Figure 2a shows that as the cutting assembly 1 is moved towards the reaction member 9 in the sense of the arrows 12a and 12b the consequent movement of the working face 7a of the resilient member 2a in the direction of the arrow 13a and the movement of the working face 7b of the resilient member 2b in the direction of the arrow 13b tensions the laminar material 11 , where it is trapped between the working faces 7a and 7b and the reaction surfaces 8 of the reaction member 9, while the cutting element 3 effects the required separation of the material to be cut.
  • the two reaction surfaces could be supported on the part 5 on either side of the cutting element 3, and the working surfaces could be as illustrated in Figures 2 and 2a.
  • Figures 3 and 3a show a further embodiment of the invention wherein the cutting element 3 is rigidly set in a reaction member in the form of a roller 15, with the reaction surfaces located on either side of the cutting element 3.
  • the working faces 7a and 7b are formed on a resilient member 2 which is also in the form of a roller 16 relieved by a groove 10.
  • the radii of the two rollers are so arranged that the circumference of the rigid roller 15 is greater than the length formed by the distance between the working faces 7a and 7b of the roller :16 added to the circumferential distance around the roller from the working faces 7a abd 7b.
  • the coefficient of friction of the material forming the surface of the roller 16 and the working faces 7a and 7b must be higher with respect to the material to be cut than the material forming the surface of the roller 15.
  • the two rollers must be so set that the distance between the centres of rotation is less than the sum of the radius 17 of the rigid roller 15 and the radius 18 of the resilient roller 16.
  • the two rollers must be so driven as to move in opposite senses shown by the arrows 19 and 20 and at an angular rate such that the cutting element 3 always matches with the groove 10.
  • the cutting element could be supported in the base of the groove 10 instead of on the roller 15, in which case a relieving groove to receive the tip of the cutting element would preferably be provided in the roller 15.
  • the roller 16 would have a small cutter element receiving groove therein in place of the groove 10, and the clement 3 would be mounted in a groove formed in the surface of the roller 16.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nonmetal Cutting Devices (AREA)
  • Details Of Cutting Devices (AREA)
EP19830305942 1982-10-01 1983-09-30 Cutting device Withdrawn EP0105748A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8228117 1982-10-01
GB8228117 1982-10-01

Publications (1)

Publication Number Publication Date
EP0105748A1 true EP0105748A1 (en) 1984-04-18

Family

ID=10533313

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19830305942 Withdrawn EP0105748A1 (en) 1982-10-01 1983-09-30 Cutting device

Country Status (3)

Country Link
EP (1) EP0105748A1 (fi)
JP (1) JPS5981095A (fi)
FI (1) FI833476A (fi)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0263258A2 (de) * 1986-09-05 1988-04-13 Karl Marbach GmbH + Co. Bandstahlstanzwerkzeug mit elastischem Profilstreifen
EP0324199A1 (en) * 1988-01-14 1989-07-19 Vmi Epe Holland B.V. A cutting device for cutting a strip of unvulcanized rubber
FR2633549A1 (fr) * 1988-06-30 1990-01-05 Centre Tech Ind Papier Outil pour la decoupe de feuilles de papier ou de carton
EP0826470A2 (en) * 1996-08-29 1998-03-04 Seiko Epson Corporation Continuous paper cutting unit
EP2147759A1 (de) * 2008-07-24 2010-01-27 Müller Martini Holding AG Verfahren und Vorrichtung für den Beschnitt wenigstens einer Seitenkante gebundener Druckerzeugnisse
GB2466808A (en) * 2009-01-08 2010-07-14 Owen Greenings & Mumford Ltd Web dispenser with cutter and compressible jaws
DE202015105416U1 (de) * 2015-10-13 2017-01-16 Krones Aktiengesellschaft Rotierende Schneid- und/oder Perforiervorrichtung für flächiges Endlosmaterial
US9943977B2 (en) 2013-03-14 2018-04-17 Sandvik Intellectual Property Ab Tensioning device for rotary cutting apparatus
DE102021133836A1 (de) 2021-12-20 2023-06-22 Krones Aktiengesellschaft Vorrichtung und Verfahren zum Bereitstellen flächiger Zuschnitte zur jeweiligen Verpackung mehrerer Artikel

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH055393U (ja) * 1991-07-10 1993-01-26 株式会社カーマ・デザインハウス ペーパーカツタ並びにこれを具備したペーパーホルダ
JP2018171671A (ja) * 2017-03-31 2018-11-08 三星ダイヤモンド工業株式会社 樹脂シートの分断装置及び分断方法

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE25768C (de) * O. LELM in Paris, 107 Bould. de Sebastopol Schnittvorrichtung für Maschinen zum Zerschneiden von Rollenpergament, Rollenpapier etc. in einzelne Breiten
AT84135B (de) * 1919-06-13 1921-05-25 Artur Ing Heinrich Schneidevorrichtung für aus Rollenbahnen entnommene Papier- oder Textilstoffe.
AT195237B (de) * 1956-04-23 1958-01-25 Winkler Fallert & Co Maschf Einrichtung zum Zerschneiden von Papiersträngen
GB1355235A (en) * 1971-06-24 1974-06-05 Gerber Garment Technology Inc Apparatus for cutting sheet material
US3921481A (en) * 1973-07-10 1975-11-25 Leesona Corp Method and apparatus for noise suppression
EP0006009A1 (en) * 1978-05-31 1979-12-12 Leonard Thomas Frank Bryan Severing of material from continuous web
GB1592857A (en) * 1976-12-22 1981-07-08 Stewart & Sons Hacklemakers Cutting device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE25768C (de) * O. LELM in Paris, 107 Bould. de Sebastopol Schnittvorrichtung für Maschinen zum Zerschneiden von Rollenpergament, Rollenpapier etc. in einzelne Breiten
AT84135B (de) * 1919-06-13 1921-05-25 Artur Ing Heinrich Schneidevorrichtung für aus Rollenbahnen entnommene Papier- oder Textilstoffe.
AT195237B (de) * 1956-04-23 1958-01-25 Winkler Fallert & Co Maschf Einrichtung zum Zerschneiden von Papiersträngen
GB1355235A (en) * 1971-06-24 1974-06-05 Gerber Garment Technology Inc Apparatus for cutting sheet material
US3921481A (en) * 1973-07-10 1975-11-25 Leesona Corp Method and apparatus for noise suppression
GB1592857A (en) * 1976-12-22 1981-07-08 Stewart & Sons Hacklemakers Cutting device
EP0006009A1 (en) * 1978-05-31 1979-12-12 Leonard Thomas Frank Bryan Severing of material from continuous web

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0263258A2 (de) * 1986-09-05 1988-04-13 Karl Marbach GmbH + Co. Bandstahlstanzwerkzeug mit elastischem Profilstreifen
EP0263258A3 (en) * 1986-09-05 1988-09-14 Karl Marbach Gmbh + Co. Strip steel punch tool with resilient profiled strips
EP0324199A1 (en) * 1988-01-14 1989-07-19 Vmi Epe Holland B.V. A cutting device for cutting a strip of unvulcanized rubber
US4922774A (en) * 1988-01-14 1990-05-08 Vmi Epe Holland B.V. Cutting device for cutting a strip of unvulcanized rubber
FR2633549A1 (fr) * 1988-06-30 1990-01-05 Centre Tech Ind Papier Outil pour la decoupe de feuilles de papier ou de carton
US6273312B1 (en) 1996-08-29 2001-08-14 Seiko Epson Corporation Continuous paper cutting unit
EP0826470A3 (en) * 1996-08-29 1998-11-04 Seiko Epson Corporation Continuous paper cutting unit
US6068170A (en) * 1996-08-29 2000-05-30 Seiko Epson Corporation Continuous paper cutting unit
EP0826470A2 (en) * 1996-08-29 1998-03-04 Seiko Epson Corporation Continuous paper cutting unit
US6279805B1 (en) * 1996-08-29 2001-08-28 Seiko Epson Corporation Continuous paper cutting unit
US6321964B1 (en) 1996-08-29 2001-11-27 Seiko Epson Corporation Continuous paper cutting unit
EP2147759A1 (de) * 2008-07-24 2010-01-27 Müller Martini Holding AG Verfahren und Vorrichtung für den Beschnitt wenigstens einer Seitenkante gebundener Druckerzeugnisse
US8453547B2 (en) 2008-07-24 2013-06-04 Mueller Martini Holding Ag Method and device for trimming at least one side edge of a bound printed product
GB2466808A (en) * 2009-01-08 2010-07-14 Owen Greenings & Mumford Ltd Web dispenser with cutter and compressible jaws
US9943977B2 (en) 2013-03-14 2018-04-17 Sandvik Intellectual Property Ab Tensioning device for rotary cutting apparatus
DE202015105416U1 (de) * 2015-10-13 2017-01-16 Krones Aktiengesellschaft Rotierende Schneid- und/oder Perforiervorrichtung für flächiges Endlosmaterial
DE102021133836A1 (de) 2021-12-20 2023-06-22 Krones Aktiengesellschaft Vorrichtung und Verfahren zum Bereitstellen flächiger Zuschnitte zur jeweiligen Verpackung mehrerer Artikel

Also Published As

Publication number Publication date
FI833476A (fi) 1984-04-02
JPS5981095A (ja) 1984-05-10
FI833476A0 (fi) 1983-09-27

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Legal Events

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT CH DE FR GB IT LI SE

17P Request for examination filed

Effective date: 19840924

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19860501

RIN1 Information on inventor provided before grant (corrected)

Inventor name: DICKINSON, JOHN MICHAEL CASSON

Inventor name: STEWART, DAVID BRUCE