EP1027967A1 - Dispositif de coupe - Google Patents

Dispositif de coupe Download PDF

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Publication number
EP1027967A1
EP1027967A1 EP99101760A EP99101760A EP1027967A1 EP 1027967 A1 EP1027967 A1 EP 1027967A1 EP 99101760 A EP99101760 A EP 99101760A EP 99101760 A EP99101760 A EP 99101760A EP 1027967 A1 EP1027967 A1 EP 1027967A1
Authority
EP
European Patent Office
Prior art keywords
cutting edge
roller
cut
blade
pressure
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Withdrawn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
EP99101760A
Other languages
German (de)
English (en)
Inventor
Markus Landolt
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.)
Gretag Imaging Trading AG
Original Assignee
Gretag Imaging Trading 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 Gretag Imaging Trading AG filed Critical Gretag Imaging Trading AG
Priority to EP99101760A priority Critical patent/EP1027967A1/fr
Priority to CA 2292118 priority patent/CA2292118A1/fr
Publication of EP1027967A1 publication Critical patent/EP1027967A1/fr
Withdrawn legal-status Critical Current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
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/02—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a stationary cutting member
    • B26D1/025—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a stationary cutting member for thin material, e.g. for sheets, strips or the like
    • 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
    • B26D7/20—Cutting beds

Definitions

  • the invention relates to a cutting device for web-like material to be cut the preamble of the independent claim.
  • a cutting device which consists of a movable, over the Width of the cutting material to be cut (knife) and there is a fixed counter bar, which the cutting edge passes for the cut so that the copy material is completely cut.
  • Another known cutting device consists of a counter bar and a roller knife, the led along the counter bar across the copy material to be cut is, the copy material is also completely cut here.
  • Known cutting devices which consist essentially of a movable Cutting edge and a fixed counter beam, but the Cutting edge does not move past the counter beam, but only up to a distance of approx. 0.01 mm is brought up to it. The paper is between the Counter bar and the cutting edge squeezed so far that a separation takes place.
  • the present invention is intended to provide a cutting device which is that of the aforementioned industrial paper cutters known squeezing principle takes over, but comparatively much less Driving forces for the moving parts of the cutting device required.
  • the cut is not made simultaneously over the entire length of the cutting edge, but similar to a roller knife progressing from one end of the cutting edge to the other. This will reduce itself the necessary driving forces and thus the energy requirements of the device are substantial.
  • the cutting device shown in FIG. 1 comprises a mounting frame 1 which the essential components of the cutting device fixed or movable are.
  • the mounting frame 1 there is a slot 2 through which the material to be cut, when used in a photographic copier typically photographic copy material, fed substantially perpendicular to the plane of the mounting frame becomes.
  • An elongated knife receiving block 3 is fixed just below the slot 2 arranged in which an equally elongated, substantially rectangular knife 4th is clamped.
  • the straight upper edge of the knife 4 is designed as a cutting edge 5 and lies in the area of the slot 2 parallel to this.
  • the cutting device works as follows:
  • the material to be cut for example photographic copying material P (FIG. 2)
  • P photographic copying material
  • the material to be sliced P becomes progressive so badly squeezed that separation takes place.
  • the one that forms a pressure element Rolling roller 12 acts on the material to be cut P on its way along the cutting edge 5 only in one compared to the total length of the cutting edge 5 short, theoretically punctiform contact area with contact pressure.
  • the forces acting during the cutting process also appear from FIG. 2: How the force diagram shows, the cutting force Fs is made up of that for driving the Rolling roller 12 required driving force Fa and the contact force (normal force) Fn together, the latter taken up by the rigid construction of the device becomes.
  • the required driving force Fa for the roller 12 is much smaller than the cutting force Fs.
  • the roller 12 is, as already mentioned, designed as a commercially available ball bearing.
  • the roller 12 but also with a jacket 12a from a knife 4 or its Cut 5 comparatively softer material, for example a less hard material Steel, can be provided, as shown in Figure 3.
  • the cut is made not contact-free in the sense that between the circumference of the roller 12 and the cutting edge 5 has a small distance. Rather, the distance here is negative so that the cutting edge 5 has a small circumferential notch 12b in the first cut presses the comparatively softer material of the casing 12a of the roller 12. Because of However, the notch 12b is located in the precise axial guidance of the roller 12 Always follow the cutting edge 5 in the subsequent cutting movements.
  • the roller 12 can also by means of spring force be pressed against the cutting edge. In Figure 3, this is by a Compression spring 15 indicated symbolically.
  • FIG. Cutting device can also drive the roller 12 by means of an endless Belt 10a take place in the area of the roller carriage 7 between the roller 12 and the two rollers 13 and 14 is passed in the manner shown.
  • the two rollers 13 and 14 are also in this embodiment variant as a ball bearing executed and the same size as the roller 12.
  • the advantage of this variant is that the roller 12 unwinds exactly on the cutting edge 5 without to have to touch this. In this way there are no transverse forces on the Cuttings that could push this away in the cutting direction.
  • Cutting device differs from the previous variants especially in that between the cutting edge 5 and the roller 12 pressing band 16 extending over the length of the cutting edge 5 e.g. made of steel is, via which the roller 12, the material to be cut P indirectly against the cutting edge 5 presses.
  • the main advantage of this embodiment is that none Rolling movement of the roller 12 takes place on the cutting edge 5 and on this A longer service life of the cutting edge 5 or the knife 4 can be achieved can.
  • the drive of the roller 12 or the roller carriage 7 can as in the embodiment realized according to Figure 1 or in the embodiment of Figure 4 his.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nonmetal Cutting Devices (AREA)
EP99101760A 1999-02-11 1999-02-11 Dispositif de coupe Withdrawn EP1027967A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP99101760A EP1027967A1 (fr) 1999-02-11 1999-02-11 Dispositif de coupe
CA 2292118 CA2292118A1 (fr) 1999-02-11 1999-12-13 Dispositif de coupe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP99101760A EP1027967A1 (fr) 1999-02-11 1999-02-11 Dispositif de coupe

Publications (1)

Publication Number Publication Date
EP1027967A1 true EP1027967A1 (fr) 2000-08-16

Family

ID=8237451

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99101760A Withdrawn EP1027967A1 (fr) 1999-02-11 1999-02-11 Dispositif de coupe

Country Status (2)

Country Link
EP (1) EP1027967A1 (fr)
CA (1) CA2292118A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005123355A1 (fr) * 2004-06-18 2005-12-29 Onamor Di Giorgi Francesco & C. Machine a decouper les materiaux fibreux
DE202008002459U1 (de) * 2008-02-21 2009-07-02 Metabowerke Gmbh Von Hand tragbare Trennvorrichtung für dünne Werkstoffplatten

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111531587B (zh) * 2020-05-11 2021-08-10 杭州芯意智能科技有限公司 一种中空板生产用自动化分割装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2957379A (en) * 1955-01-20 1960-10-25 Joseph Dixon Crucible Co Strip cutting mechanism
US3566736A (en) * 1969-04-09 1971-03-02 Johnson & Quin Inc Segment cutter
GB1396887A (en) * 1971-06-17 1975-06-11 Morris L J Devices for cutting or scoring sheet material
DE29602878U1 (de) * 1996-02-17 1996-09-19 Weisheit Robert Schneidvorrichtung
US5647260A (en) * 1995-09-29 1997-07-15 Nabity; Stephen W. Roller cutting machine
EP0807524A2 (fr) * 1996-05-14 1997-11-19 Esselte N.V. Appareil d'impression avec un dispositif automatique de coupe

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2957379A (en) * 1955-01-20 1960-10-25 Joseph Dixon Crucible Co Strip cutting mechanism
US3566736A (en) * 1969-04-09 1971-03-02 Johnson & Quin Inc Segment cutter
GB1396887A (en) * 1971-06-17 1975-06-11 Morris L J Devices for cutting or scoring sheet material
US5647260A (en) * 1995-09-29 1997-07-15 Nabity; Stephen W. Roller cutting machine
DE29602878U1 (de) * 1996-02-17 1996-09-19 Weisheit Robert Schneidvorrichtung
EP0807524A2 (fr) * 1996-05-14 1997-11-19 Esselte N.V. Appareil d'impression avec un dispositif automatique de coupe

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005123355A1 (fr) * 2004-06-18 2005-12-29 Onamor Di Giorgi Francesco & C. Machine a decouper les materiaux fibreux
DE202008002459U1 (de) * 2008-02-21 2009-07-02 Metabowerke Gmbh Von Hand tragbare Trennvorrichtung für dünne Werkstoffplatten

Also Published As

Publication number Publication date
CA2292118A1 (fr) 2000-08-11

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