EP0275909A1 - Coupeuse pour couper longitudinalement des bandes dans des feuilles - Google Patents

Coupeuse pour couper longitudinalement des bandes dans des feuilles Download PDF

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Publication number
EP0275909A1
EP0275909A1 EP88100371A EP88100371A EP0275909A1 EP 0275909 A1 EP0275909 A1 EP 0275909A1 EP 88100371 A EP88100371 A EP 88100371A EP 88100371 A EP88100371 A EP 88100371A EP 0275909 A1 EP0275909 A1 EP 0275909A1
Authority
EP
European Patent Office
Prior art keywords
cutting
knives
knife
disc
slot
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
EP88100371A
Other languages
German (de)
English (en)
Other versions
EP0275909B2 (fr
EP0275909B1 (fr
Inventor
Bernd Dr. Scholtysik
Josef Birkmann
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.)
Emtec Magnetics GmbH
Original Assignee
Agfa Gevaert AG
BASF Magnetics GmbH
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=6319262&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0275909(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Agfa Gevaert AG, BASF Magnetics GmbH filed Critical Agfa Gevaert AG
Publication of EP0275909A1 publication Critical patent/EP0275909A1/fr
Application granted granted Critical
Publication of EP0275909B1 publication Critical patent/EP0275909B1/fr
Publication of EP0275909B2 publication Critical patent/EP0275909B2/fr
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
    • B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
    • B26D7/2614—Means for mounting the cutting member
    • B26D7/2621—Means for mounting the cutting member for circular cutters
    • 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
    • B26D1/12—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 cutting member moving about an axis
    • B26D1/14—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 cutting member moving about an axis with a circular cutting member, e.g. disc cutter
    • B26D1/24—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 cutting member moving about an axis with a circular cutting member, e.g. disc cutter coacting with another disc cutter
    • 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
    • B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
    • B26D7/2628—Means for adjusting the position of the cutting member
    • B26D7/2635—Means for adjusting the position of the cutting member for circular cutters
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S83/00—Cutting
    • Y10S83/955—Cutter edge shiftable to present different portion of edge
    • 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
    • Y10T83/04—Processes
    • Y10T83/05—With reorientation of tool between cuts
    • 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
    • Y10T83/04—Processes
    • Y10T83/0524—Plural cutting steps
    • 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
    • Y10T83/768—Rotatable disc tool pair or tool and carrier
    • Y10T83/7809—Tool pair comprises rotatable tools
    • Y10T83/783—Tool pair comprises contacting overlapped discs
    • Y10T83/7834—With means to effect axial pressure on pair
    • 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
    • Y10T83/9403—Disc type

Definitions

  • the invention relates to a cutting device according to the preamble of claim 1.
  • Foil webs in particular coated webs for photographic and magnetizable materials, are cut lengthwise into a group of narrow bands during further processing.
  • the circular knife cut is the most common of the longitudinal cutting methods.
  • Circular upper and lower knives arranged on corresponding knife shafts interact.
  • An embodiment has become known in which the circular upper knife (disc knife) is immersed in the shoulder of a circular lower knife (slot knife).
  • the cutting edges are very heavily ground off, with the disc knife digging into the slot knife in advanced use. If the edge wear increases, for example in the order of the film thickness, the knives begin to cut squeezing, which results in poor cutting quality.
  • An improved cutting device which provides significantly longer service life of the knives, is known from DE-PS 24 05 849.
  • a disc knife (1) which is pressed against the cutting shoulder (2) of a slot knife (3) by a plate spring (4), plunges somewhat deeper than the thickness of the cutting shoulder.
  • a disadvantage of this device is that the progressive removal of the cutting shoulder of the slot knife while regrinding the slot knife means that the contact surface of the film web to be cut becomes smaller and smaller, since the gap width (b) becomes larger and larger, as a result of which the cutting quality suffers.
  • the contact pressure of the disc springs must be continuously adjusted due to the wear of the cutting shoulders during operation.
  • the task was to find a cutting device which does not have the above disadvantages and which, in particular, provides a long service life for the disk and slot knives before regrinding the knives is necessary.
  • a multiple cutting tool is shown schematically as it is used for the production of narrow strips from a wide film web.
  • the disks Knife (1) and the grooving knife (3) are arranged here at equal intervals on the knife shafts (6) and (7).
  • the disc knives (1) dip with their circumference into a groove (5) in the groove knives, which are each formed by the opposing surfaces of the cutting shoulders of two groove knives.
  • the grooving knives (3) are rigidly connected to the knife shaft (6).
  • the disc knives (1) are mounted on the upper knife shaft (7) and are tensioned by the plate springs (4) against the pitch reference surface of the spacer rings (9).
  • the pitch of the spacer rings (9) corresponds to the pitch of the slot knives.
  • the disc springs (4) can also be replaced by other spring means.
  • the immersion depth of the disc knives in the cutting shoulder (10, 11) of the slot knives is 0.1 to 1 mm, preferably 0.3 to 0.5 mm.
  • the disc knives can have a rectangular cross section and a thickness of approximately 0.5 mm.
  • Other disc knife shapes are also possible, for example disc knives with a chamfer which is attached to the side of the disc knife facing away from the cutting shoulder of the slot knife.
  • the disc knife is preferably made of hard metal, for example the hard metal known under the trade name Widia from Krupp.
  • the grooving knives (3) can also be made of hard metal, otherwise tool steel.
  • the slot knives have a rectangular cross-section in the area of contact with the disk knife and the thickness of the spacer rings (8) between two slot knives is based on the width of the strips to be cut.
  • the thickness of the grooving knife and the spacer rings are each about 2 mm.
  • both cutting shoulders (10, 11) of the grooving knife are opened a surface roughness of Rt ⁇ 0.2 ⁇ m, preferably 0.1 ⁇ m, ground.
  • the cylindrical outer surface of the grooving knife is also ground to a roughness of Rt ⁇ 0.2 ⁇ m with every regrinding of the grooving knife, whereby two sharp cutting edges (13, 14) are created on each grooving knife.
  • both knife shafts rotate in opposite directions. If the cut quality has become inadequate due to wear on the right-hand cutting shoulder after a longer period of operation, the still intact left-hand cutting shoulder (10) of the grooving knife is used, as shown in FIG. 3. This can be done, for example, by removing and turning the entire disc knife shaft (7). However, this only makes sense if the wear on the disc knives (1) is still low. Otherwise, a disk knife shaft equipped with newly ground disk knives in the manner shown in FIG. 3 is to be brought into contact with the as yet uns worn cutting shoulder (10) of the slot knives. Then you can continue cutting until the left cutting shoulders (10) have become unusable due to wear. Only then is the grooving knife shaft removed and the cylindrical lateral surfaces (12) of the grooving knives are ground off until there are sharp cutting shoulders on both sides of the grooving knife, which enable the described double use of the grooving knife shaft.
  • the cutting system according to the invention has the following advantages over the known cutting devices: - During the grinding process arise simultaneously with the slot knives according to the cutting device according to the invention two sharp edges that can be used one after the other. As a result, there are lower cutting costs in relation to the service life of the knives, which is important for efficient production -
  • the width of the spacer rings (8) determines the gap width (5) of the slot knives relevant for the cutting quality of the material to be cut. This gap width remains constant during the entire service life of the cutting device according to the invention - Due to the constant pressure of the disc knives by disc springs on the slot knives, the cut strips are cut across the entire width of the film web.
  • the grooving knife can have the shape shown in FIG. 4, in which case no spacer rings are required, rather the distance (h) determines the gap width.
  • the difference of the grooving knife shape shown in Figure 4 compared to known, similar grooving knives is that here two side surfaces (10 ⁇ , 11 mit) are available with a high surface quality, which results in two sharp cutting edges of the grooving knife during regrinding, which enables the double use of the grooving knife shaft.
  • the width of the groove knife and spacer ring will determine the width of the cut strip.
  • integral multiples of this strip width can also come out as a cutting width if the disc knife shaft is equipped accordingly.
  • FIG. 5 shows an example of this, the strip width corresponding to two divisions of the slot knife shaft.
  • each strip to be cut lies on two lateral surfaces of the grooving knife.
  • the grooving knife shaft can be used four times for each regrinding, since four cutting shoulders of the grooving knife shaft can be used within the spacing of the bandwidth.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nonmetal Cutting Devices (AREA)
  • Shearing Machines (AREA)
EP88100371A 1987-01-22 1988-01-13 Coupeuse pour couper longitudinalement des bandes dans des feuilles Expired - Lifetime EP0275909B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3701716A DE3701716C3 (de) 1987-01-22 1987-01-22 Verfahren zum Schneiden von Magnetbändern
DE3701716 1987-01-22

Publications (3)

Publication Number Publication Date
EP0275909A1 true EP0275909A1 (fr) 1988-07-27
EP0275909B1 EP0275909B1 (fr) 1991-04-03
EP0275909B2 EP0275909B2 (fr) 1998-06-03

Family

ID=6319262

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88100371A Expired - Lifetime EP0275909B2 (fr) 1987-01-22 1988-01-13 Coupeuse pour couper longitudinalement des bandes dans des feuilles

Country Status (5)

Country Link
US (1) US5085110A (fr)
EP (1) EP0275909B2 (fr)
JP (1) JPH06318B2 (fr)
KR (1) KR930009108B1 (fr)
DE (2) DE3701716C3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0390133A1 (fr) * 1989-03-31 1990-10-03 Mitsubishi Materials Corporation Assemblage de couteaux circulaires

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3908451A1 (de) * 1989-03-15 1990-09-20 Agfa Gevaert Ag Schneide- und wickelvorrichtung fuer folienstreifen
AT397481B (de) * 1990-02-21 1994-04-25 Boehler Ybbstalwerke Kreismesserschere
DE29511247U1 (de) * 1995-07-12 1996-08-14 EMTEC Magnetics GmbH, 67059 Ludwigshafen Kobalt-Bindemetall-Legierung für Hartmetall-Legierungen für Hartmetall-Werkzeuge, insbesondere Schneidwerkzeuge, und Hartmetall-Werkzeuge damit
US6536320B2 (en) * 1998-11-19 2003-03-25 Eastman Kodak Company Slitter cutting element and method of making same
JP3440888B2 (ja) * 1999-06-21 2003-08-25 株式会社村田製作所 ダイシングブレード及び電子部品の製造方法
DE10111112B4 (de) * 2001-03-08 2005-12-22 Vaw Aluminium Ag Untermesserwelle für eine Rollenschneidmaschine
US6996070B2 (en) * 2003-12-05 2006-02-07 Alacritech, Inc. TCP/IP offload device with reduced sequential processing
JP5722986B1 (ja) * 2013-12-27 2015-05-27 株式会社ブリヂストン 重荷重用空気入りタイヤ
KR102196059B1 (ko) * 2020-06-05 2020-12-29 이석현 진단 킷용 스트립 절단 장치
KR102220231B1 (ko) 2020-08-28 2021-02-24 이석현 진단 시약지용 스트립 절단 장치

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2405849A1 (de) * 1974-02-07 1975-08-21 Agfa Gevaert Ag Schneidevorrichtung zum laengsschneiden von folienbahnen
EP0166864A1 (fr) * 1984-05-10 1986-01-08 Allied Corporation Machine à découper ayant des couteaux circulaires flottants

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US164920A (en) * 1875-06-29 Improvement in rotary paper-cutters
DE305586C (fr) *
AT76978B (de) * 1917-02-05 1919-06-25 Ferd Emil Jagenberg Fa Messeranordnung für Rollenschneidvorrichtungen.
US1673336A (en) * 1927-05-09 1928-06-12 Oscar E Lehmicke Machine for shredding materials
US2006106A (en) * 1933-08-24 1935-06-25 Muller J C & Co Knife mounting for machines
GB454623A (en) * 1934-03-27 1936-09-28 Eduard Quester Improvements in or relating to cutting devices
DE1878280U (de) * 1963-03-27 1963-08-22 Elsa Doering Schnittrenner fuer rollenschneidmaschinen fuer papier od. dgl.
US3185010A (en) * 1963-06-03 1965-05-25 Diamond Int Corp Slitting mechanism for endless web material
US3286574A (en) * 1964-04-22 1966-11-22 Durand Auguste Paul Paper slitting apparatus
US3465631A (en) * 1966-10-06 1969-09-09 Beloit Eastern Corp Self-sharpening slitter
DE2304092A1 (de) * 1973-01-27 1974-08-01 Goebel Gmbh Maschf Einrichtung zum laengsschneiden schmaler streifen
JPS5111084U (fr) * 1974-07-10 1976-01-27
JPS5175816A (ja) * 1974-12-25 1976-06-30 Shin Meiwa Ind Co Ltd Sharyonohaikikansochi
JPS6210075Y2 (fr) * 1977-02-26 1987-03-09
DE2846747B1 (de) * 1978-10-27 1980-03-27 Dienes Werke Praezisions-Streifenschneidmaschine
US4330092A (en) * 1979-12-07 1982-05-18 The Perkin-Elmer Corporation In-line shredder apparatus
US4428265A (en) * 1981-10-22 1984-01-31 Industrial Tools Inc. Tape slitter axial loading system
JPS5915800A (ja) * 1982-07-19 1984-01-26 Kurita Water Ind Ltd フアウリング防止装置
US4548117A (en) * 1983-03-25 1985-10-22 Beloit Corporation Non-dulling slitter

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2405849A1 (de) * 1974-02-07 1975-08-21 Agfa Gevaert Ag Schneidevorrichtung zum laengsschneiden von folienbahnen
EP0166864A1 (fr) * 1984-05-10 1986-01-08 Allied Corporation Machine à découper ayant des couteaux circulaires flottants

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
IEEE - Transactions on Magnetics, Band Mag. 10, Nr. 1, Januar 1980 FELD et al. "Cutting of Magnetic Tapes with Hard Metal Circular Knives" seiten 83-85 * gesamt * *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0390133A1 (fr) * 1989-03-31 1990-10-03 Mitsubishi Materials Corporation Assemblage de couteaux circulaires
US5048388A (en) * 1989-03-31 1991-09-17 Mitsubishi Metal Corporation Rotary knife assembly

Also Published As

Publication number Publication date
JPH06318B2 (ja) 1994-01-05
US5085110A (en) 1992-02-04
KR880008863A (ko) 1988-09-13
DE3701716A1 (de) 1988-08-04
DE3862195D1 (de) 1991-05-08
EP0275909B2 (fr) 1998-06-03
JPS63212494A (ja) 1988-09-05
KR930009108B1 (ko) 1993-09-23
DE3701716C3 (de) 1996-06-20
EP0275909B1 (fr) 1991-04-03
DE3701716C2 (fr) 1990-10-11

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