EP0277260A2 - Dispositif pour la coupe de matériaux en feuilles - Google Patents

Dispositif pour la coupe de matériaux en feuilles Download PDF

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Publication number
EP0277260A2
EP0277260A2 EP87102828A EP87102828A EP0277260A2 EP 0277260 A2 EP0277260 A2 EP 0277260A2 EP 87102828 A EP87102828 A EP 87102828A EP 87102828 A EP87102828 A EP 87102828A EP 0277260 A2 EP0277260 A2 EP 0277260A2
Authority
EP
European Patent Office
Prior art keywords
knife
disc
knives
rings
disc knife
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
EP87102828A
Other languages
German (de)
English (en)
Other versions
EP0277260B1 (fr
EP0277260A3 (en
Inventor
Reinhard Blatter
Heinz Dohnalek
Michael J. Mehltretter
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.)
IBSM Mehltretter GmbH
Original Assignee
IBSM Mehltretter 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
Application filed by IBSM Mehltretter GmbH filed Critical IBSM Mehltretter GmbH
Publication of EP0277260A2 publication Critical patent/EP0277260A2/fr
Publication of EP0277260A3 publication Critical patent/EP0277260A3/de
Application granted granted Critical
Publication of EP0277260B1 publication Critical patent/EP0277260B1/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
    • 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
    • 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
    • B26D1/0006—Cutting members therefor
    • 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
    • B26D1/0006—Cutting members therefor
    • B26D2001/0046—Cutting members therefor rotating continuously about an axis perpendicular to the edge
    • 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
    • B26D1/0006—Cutting members therefor
    • B26D2001/0053—Cutting members therefor having a special cutting edge section or blade section
    • 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
    • B26D1/0006—Cutting members therefor
    • B26D2001/0066—Cutting members therefor having shearing means, e.g. shearing blades, abutting blades

Definitions

  • the invention relates to a method for producing a cup-shaped disc knife and to cutting devices for longitudinally cutting film webs according to the preambles of claims 4 and 5.
  • They are cutting devices for longitudinally cutting film webs, e.g. thin, coated plastic films that are used for magnetic tapes known. These devices consist of two knife shafts. One is equipped with disc knives, the other with slot knives. For operation, the two cutter shafts are adjusted radially into one another and braced axially against one another.
  • Cup-shaped ground circular knives (DE-AS 26 24 875) have an advantageous cutting geometry in cooperation with the slot knives, but their regrinding is complex: they have to be reground both radially and on both side surfaces.
  • the flat disc knives and the cup-shaped, hollow circular knives are clamped onto knife shafts with the help of rings that specify the distance between the knives. While the rings lie against each other with their end faces in the area of their inner diameter, the knife disks are placed in a groove between the rings and are mainly pressed resiliently against a collar on the groove wall with the included worm or disc springs (FIGS. 1a and 2a).
  • the springs are dimensioned in such a way that the cutter disks are pressed as a rigid part onto the groove wall and, when the two cutter shafts are axially braced with the disk and slot knives against each other, are lifted more or less from the groove wall against the spring force.
  • the present invention is based on the object of specifying a method and a device which make it possible to obtain and use cup-shaped disc knives which have the advantages of flat disc knives, such as simple manufacture, long service life and simple radial regrinding, and at the same time the advantages of pot-shaped disc knives or hollow circular knives with respect to the cutting process.
  • a method is proposed with which a cup-shaped disc knife is produced by a conventional flat disc knife being cup-shaped only by clamping between two rings on a knife shaft, by circularly on different-sized diameters of the disc knife on both side surfaces of the disc knife Attack forces.
  • the method according to the invention stipulates on the measure that a flat disk bulges when forces act in a circular manner on both sides and in each case on diameters of different sizes (FIG. 3). This cup-shaped arching takes place with appropriate selection of the forces in the elastic area of the disc knife material.
  • This clamping and deforming of the flat disc knives can be done solely by means of the rings which are pressed together and hold the knife and clamped onto the knife shaft.
  • these rings are formed on their end faces so that forces act on differently sized diameters along a circular edge from each side of the disk knife.
  • the deformation to the pot shape of the disk knife can also take place in that the force of a plate spring, which is inserted between the rings pressed together on the knife shaft, acts on the disk knife.
  • the spring force and the thickness of the disc knife are coordinated so that the disc knife is brought into a pot shape by elastic deformation.
  • Figures 1a, 1b, 2a and 2b show known cutting devices.
  • Flat disc knives 1 or ground hollow circular knives 27 are mounted on the knife shafts 3.
  • the knives 1 sit on and between rings 5 and are pressed against an end face of the adjacent ring 5 by an inserted disc spring 13.
  • the disc knives 1 and the slot knives 19 are moved into one another and the knife shafts 3 are axially biased against the counter knife shaft 21. So far, the disc springs and the disc knife were coordinated so that the disc knife 1 was lifted from the system on the ring 5 in this process ( Figure 1b). In the borderline case, this results in the unfavorable position of the two knives with respect to one another with the point of contact 29 of the cutting edge of the slot knife 19 with the side face of the disk knife 1, as can be seen in FIG.
  • FIGS. 2a to 2c correspond to FIGS. 1a to 1c and show a cutting device with hollow compass knives 27 which are pressed against contact edges by worm springs 25. As shown in FIGS. 2b and 2c, the hollow circular knives also lift from their contact surface overall during operation, but retain a favorable position relative to the slot knives (contact points 31, 33).
  • FIG. 3 shows the principle on which the present invention is based. If forces act on the two side surfaces of a flat disk knife 1 on circular lines with different diameters d or D, the flat disk knife bulges. The forces, the knife material or the deflection of the disk are dimensioned such that the disk knives return to their flat, flat shape after the force is removed. As a result, the radial regrinding of an entire package of disc knives placed against one another is also advantageously possible.
  • FIG. 4 shows a clamping device in which the cup-shaped deformation of the disc knives 1 is achieved solely by the rings 5 pressed against one another.
  • all rings 5 are of the same design.
  • the flat disc knife 1 is elastically deformed by the circular edges 9 and 11 with the diameters d and D.
  • the width and the depth of the groove 7 are dimensioned so that the disc knife 1 can deflect freely. Due to the corresponding dimensions of the edges 9 and 11, the desired deflection of the disk knife 1 can be achieved exactly.
  • FIG. 4 shows the interaction of the disk knife 1 with the slot knife 19 in the operating state. It can be seen that the disc knife 1 remains in contact with the edges 9 and 11 and accordingly the favorable interaction with the grooving knife 19 is achieved as in the case of the circular caliper knife according to FIG. 2c. Of course, by axially bracing the knife shafts 3 and 21, only part of the cup-shaped deformation of the disk knife 1 may be removed.
  • FIG. 5 shows how a suitable disk knife 1 can also be brought into a pot shape by suitable coordination of the disk thickness with the force of the plate spring 13.
  • the step-like design of the rings 5 according to this FIG. 5 additionally enables a safe and precise assembly process when the disc knives 1 are clamped with the aid of the plate springs 13 and the rings 5 on the knife shaft 3. While, in the clamping device according to FIG now centered on the shoulder of the ring 5 with the diameter d Sch already when the parts are loosely assembled. The plate springs 13 also sit on a separate ring shoulder. In Figure 5, the dashed figure portion also represents the operating state.
  • FIG. 6 shows a ring 5 with two edges 17 and 17 und.
  • the advantage of this arrangement is that the inclination of the disc knife surface can be specified by the appropriate gradation of the edges 17 and 17 ⁇ .
  • the cutting device according to the invention is generally suitable for cutting film webs. However, it is used particularly advantageously when separating thin films coated with magnetizable material into magnetic tapes. Here an excellent cut edge quality of the tapes is achieved.
  • the hard metal material of the disc knife 1 and the grooving knife 19 guarantee a long service life. There are no difficulties when regrinding the disk and grooving knives, since both knives only have to be reground radially on their circumference.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nonmetal Cutting Devices (AREA)
EP87102828A 1986-12-09 1987-02-27 Dispositif pour la coupe de matériaux en feuilles Expired - Lifetime EP0277260B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3642005 1986-12-09
DE3642005A DE3642005C1 (de) 1986-12-09 1986-12-09 Vorrichtung zum Schneiden von folienartigen Werkstoffen

Publications (3)

Publication Number Publication Date
EP0277260A2 true EP0277260A2 (fr) 1988-08-10
EP0277260A3 EP0277260A3 (en) 1988-10-19
EP0277260B1 EP0277260B1 (fr) 1990-10-03

Family

ID=6315786

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87102828A Expired - Lifetime EP0277260B1 (fr) 1986-12-09 1987-02-27 Dispositif pour la coupe de matériaux en feuilles

Country Status (4)

Country Link
EP (1) EP0277260B1 (fr)
JP (1) JPS63144995A (fr)
KR (1) KR920007590B1 (fr)
DE (1) DE3642005C1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU625316B2 (en) * 1988-03-14 1992-07-09 Valmet Paper Machinery Inc. Upper-blade holder
US5621089A (en) * 1992-05-27 1997-04-15 Novo Nordisk Biotech, Inc. Nucleic acid constructs for the production of a Bacillus alkaline protease
DE102019104029A1 (de) * 2019-02-18 2020-08-20 Sprick Gmbh Bielefelder Papier- Und Wellpappenwerke & Co. Vorrichtung zum Schneiden einer Verpackungsmaterialbahn

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0335994A (ja) * 1989-06-30 1991-02-15 Asahi Plast:Kk 合成樹脂成形品の曲面切断装置
US5215202A (en) * 1990-09-05 1993-06-01 Aichi Sharyo Co., Ltd. Mobile vehicular apparatus with aerial cabin
US5183168A (en) * 1990-09-05 1993-02-02 Aichi Sharyo Co. Ltd. Mobile vehicular apparatus with aerial cabin
US5268591A (en) * 1990-09-21 1993-12-07 Kabushiki Kaisha Aichi Corporation Upper power supply arrangement for mobile vehicular apparatus with aerial platform
US5107954A (en) * 1990-10-31 1992-04-28 Aichi Sharyo Co. Ltd. Control device for mobile vehicular apparatus with aerial platform
US5286159A (en) * 1990-11-08 1994-02-15 Kabushiki Kaisha Aichi Corporation Mobile vehicular apparatus with aerial working device
US5200674A (en) * 1990-11-16 1993-04-06 Aichi Sharyo Co., Ltd. Electric power supply device for mobile vehicular apparatus with aerial cabin having force-feedback manipulator
DE4132120A1 (de) * 1991-09-26 1993-04-01 Gerhardt Int As Vorrichtung zum durchschneiden, einschneiden, durchperforieren oder einperforieren von blattmaterial und verfahren zu seiner herstellung
US20130255861A1 (en) 2012-03-30 2013-10-03 Uwe Schneider Apparatuses and Methods for Making Absorbent Articles
US8440043B1 (en) 2012-03-30 2013-05-14 The Procter & Gamble Company Absorbent article process and apparatus for intermittently deactivating elastics in elastic laminates
DE102015005559B4 (de) * 2015-04-29 2023-07-27 Jörg von Seggern Maschinenbau GmbH Schneidevorrichtung mit zumindest zwei Obermessern zum Herausschneiden eines Streifens einer Folie

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE319326C (de) * 1920-03-03 Ernst Gessner Federnd gelagertes Kreismesser fuer Laengsschneider
DE87283C (fr) *
FR1040361A (fr) * 1950-08-05 1953-10-14 Goebel Ag Couteau circulaire pour couper des bandes de papier, carton, tissu ou analogue
DE968269C (de) * 1951-11-13 1958-01-30 Goebel Gmbh Maschf Kreismesser zum Schneiden von Papier, Karton, Gewebe od. dgl. sowie Verfahren zum Einsetzen des Schneidringes des Kreismessers in sein Tragglied
GB793270A (en) * 1955-11-24 1958-04-16 Goebel Gmbh Maschf Rotary cutter for slitting webs of paper, cardboard, fabrics or the like
DE2304092A1 (de) * 1973-01-27 1974-08-01 Goebel Gmbh Maschf Einrichtung zum laengsschneiden schmaler streifen
DE2405849C2 (de) * 1974-02-07 1984-10-31 Agfa-Gevaert Ag, 5090 Leverkusen Schneidevorrichtung zum Längsschneiden von Folienbahnen
DE2624875C3 (de) * 1976-06-03 1978-11-30 Dienes Werke Fuer Maschinenteile Gmbh & Co Kg, 5063 Overath Streifenschneidmaschine
JPS5867691U (ja) * 1981-10-30 1983-05-09 三菱マテリアル株式会社 スリツタ装置
JPS5915800A (ja) * 1982-07-19 1984-01-26 Kurita Water Ind Ltd フアウリング防止装置
JPS6339030Y2 (fr) * 1985-03-30 1988-10-13
JPS62241695A (ja) * 1986-04-14 1987-10-22 オルフア株式会社 シ−ト裁断装置

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU625316B2 (en) * 1988-03-14 1992-07-09 Valmet Paper Machinery Inc. Upper-blade holder
US5621089A (en) * 1992-05-27 1997-04-15 Novo Nordisk Biotech, Inc. Nucleic acid constructs for the production of a Bacillus alkaline protease
US5622850A (en) * 1992-05-27 1997-04-22 Novo Nordisk Biotech, Inc. Recombinant methods for the production of a bacillus alkaline protease
US5622841A (en) * 1992-05-27 1997-04-22 Novo Nordisk Biotech, Inc. Method for the production of heterologous polypeptides using a promoter element and signal peptide of a bacillus gene encoding an alkaline protease
US5650326A (en) * 1992-05-27 1997-07-22 Novo Nordisk Biotech, Inc. Promoter element and signal peptide of a gene encoding a Bacillus alkaline protease and vectors comprising same
DE102019104029A1 (de) * 2019-02-18 2020-08-20 Sprick Gmbh Bielefelder Papier- Und Wellpappenwerke & Co. Vorrichtung zum Schneiden einer Verpackungsmaterialbahn

Also Published As

Publication number Publication date
EP0277260B1 (fr) 1990-10-03
JPS63144995A (ja) 1988-06-17
KR880007184A (ko) 1988-08-26
JPH057152B2 (fr) 1993-01-28
DE3642005C1 (de) 1988-03-03
KR920007590B1 (ko) 1992-09-08
EP0277260A3 (en) 1988-10-19

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