EP0798086B1 - Verfahren zum Zurichten van Stanzwerkzeugen, sowie mit einem solchen Zurichtbogen ausgerüstete Stanzmaschine - Google Patents

Verfahren zum Zurichten van Stanzwerkzeugen, sowie mit einem solchen Zurichtbogen ausgerüstete Stanzmaschine Download PDF

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Publication number
EP0798086B1
EP0798086B1 EP19970200768 EP97200768A EP0798086B1 EP 0798086 B1 EP0798086 B1 EP 0798086B1 EP 19970200768 EP19970200768 EP 19970200768 EP 97200768 A EP97200768 A EP 97200768A EP 0798086 B1 EP0798086 B1 EP 0798086B1
Authority
EP
European Patent Office
Prior art keywords
cutting
compensating sheet
dies
sheet
cutting dies
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.)
Expired - Lifetime
Application number
EP19970200768
Other languages
English (en)
French (fr)
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EP0798086A1 (de
Inventor
Petrus Hendricus Franciscus Van Oosterhout
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.)
PERIVO B.V.
Original Assignee
Perivo BV
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Filing date
Publication date
Application filed by Perivo BV filed Critical Perivo BV
Publication of EP0798086A1 publication Critical patent/EP0798086A1/de
Application granted granted Critical
Publication of EP0798086B1 publication Critical patent/EP0798086B1/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
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/38—Cutting-out; Stamping-out
    • B26F1/44—Cutters therefor; Dies therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/38—Cutting-out; Stamping-out
    • B26F1/40—Cutting-out; Stamping-out using a press, e.g. of the ram type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/38—Cutting-out; Stamping-out
    • B26F1/44—Cutters therefor; Dies therefor
    • B26F2001/4409—Cutters therefor; Dies therefor having die balancing or compensating means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/38—Cutting-out; Stamping-out
    • B26F1/44—Cutters therefor; Dies therefor
    • B26F2001/4463—Methods and devices for rule setting, fixation, preparing cutting dies

Definitions

  • the present invention concerns a method for adjusting cutting dies, in a die cutting machine equipped with several simultaneously operated cutting dies, as well as a die cutting machine equipped with a compensating sheet.
  • the invention is designed to be applied for the die cutting of paper and/or boxboard, for example to form cartons, such as folding cartons and such, out of a sheet or roll of cardboard or corrugated board, or for the die- cutting of any other material which can be processed on bending/die cutting machines and similar cutting machines.
  • compensating sheets or compensating foils made of polyurethane, metal, tetrafluoroethylene, paper or a combination thereof.
  • the invention aims among others to remedy this problem.
  • the invention concerns a method for adjusting cutting dies in a die cutting machine equipped with several simultaneously operated cutting dies, which preferably work in conjunction with a base during the die cutting, whereby the differences in height of the cutting dies are offset by means of a compensating sheet made of a compressible material working in conjunction with the backsides of the cutting dies, characterized in that a sheet made of polycarbonate or a material on the basis of polycarbonate is used as a compensating sheet.
  • a compensating sheet made of polycarbonate according to the invention By applying a compensating sheet made of polycarbonate according to the invention, particularly good adjusting qualities are obtained. In particular, a perfect compensation is obtained without any damage to the cutting dies.
  • the invention also concerns a die cutting machine according to claim 12 and whose characteristics will become clear from the following description.
  • FIG. 1 it is known that when die cutting a material 1, in particular paper and cardboard, as well as corrugated board, use can be made of a cutting forme 2 in which several cutting dies 3A-3B are provided, as well as a metal cutting plate 4 working in conjunction therewith, provided against the backsides 5 of the cutting dies 3A-3B and the backside of the cutting forme 2, for example by means of fixing means such as bolts 6, and which can be moved by means of press-on means 7, with for example what is called a top platen 8 and a makeready 9.
  • a cutting forme 2 in which several cutting dies 3A-3B are provided, as well as a metal cutting plate 4 working in conjunction therewith, provided against the backsides 5 of the cutting dies 3A-3B and the backside of the cutting forme 2, for example by means of fixing means such as bolts 6, and which can be moved by means of press-on means 7, with for example what is called a top platen 8 and a makeready 9.
  • the material 1 to be die cut is provided under the cutting dies 3A-3B on a usually very hard base 10 which is supported either directly or indirectly by the machine frame or the lower platen 11.
  • a supporting plate for example made of steel or plastic, can be either or not provided between the base 10 and the lower platen 11.
  • the cutting edges 12 of the cutting dies 3A-3B are initially not all situated at the same distance from the base 9.
  • the cutting edges 12 of a number of cutting dies 3B may be situated at a larger distance from the base 10 than the cutting edges 12 of the other cutting dies 3A, due to tolerance differences in the cutting dies or due to wear and tear. Similar differences may occur due to deviations in the machine parts, such as for example the base 10 or other machine parts not being flat. In fact, we are speaking of differences of some one hundredths to tenths of a millimetre.
  • a compensating sheet 13 which consists of polycarbonate or a material on the basis of polycarbonate.
  • the material of the compensating sheet 13 predominantly consists of polycarbonate in this case as well.
  • the thickness D of the compensating sheet which is exaggerated in the figures for clarity's sake, preferably amounts to 0.1 to 1 mm, and better still to 0.4 to 0.6 mm, and according to the most preferred embodiment to 0.5 mm.
  • This relatively reduced thickness offers the advantage, apart from optimal compensating qualities, that such a compensating sheet 13 can be used in any existing die cutting machine, since the parts of such die cutting machines are usually made such that this thickness is acceptable, even when said die cutting machine was originally not designed to be equipped with a compensating sheet.
  • the compensating sheet 13 is preferably put directly into contact with the backsides 5 of the cutting dies 3A-3B, i.e. without any other compensating layers being included, as differences in height can be set off immediately there.
  • cutting dies 3A-3B with blunt, flat backsides 5 are used, as this offers optimal compensation qualities in combination with the typical toughness and hardness of polycarbonate.
  • pre-formed openings 14 can be provided for the bolts 6 or for any other penetrating elements.
  • the die cutting pressure is preferably systematically increased at the transition from the situation in figure 2 to that in figure 3 until all the cutting dies 3A-3B go through the material 1. Thanks to such a temporary, systematic increase of pressure, a pressure can be applied which is just sufficient, which may possibly be maintained for the following cycles, and it can be excluded that a pressure which is bigger than necessary is applied for the cutting and that the cutting edges are loaded more heavily than necessary. Thus is also avoided that cutting dies are pressed into pieces.
  • polycarbonate is advantageous in that, in particular when die cutting boxboard products, the cutting dies 3A-3B can go through the material 1 to be die cut without any or hardly any compression of said material.
  • a polycarbonate sheet offers just enough resistance to let the cutting dies 3A-3B cut through the boxboard material, but it is still sufficiently soft so as not to damage the cutting edges 12 on the base 10 when the pressure is increased.
  • polycarbonate provides the best results, especially when die cutting paper or boxboard, both solid cardboard and corrugated board.
  • the cutting dies 3A-3B must not necessarily have a sharp cutting edge 12. They can also be impress knives, for example to realize folding lines or embossing formes.
  • the term "compensating sheet” is to be interpreted in a broad sense according to the invention.
  • the compensating sheet may also consist of a polycarbonate coating provided on a base sheet or of a layer in the form of a foil.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Claims (12)

  1. Verfahren zum Zurichten von Stanzwerkzeugen, in einer Stanzmaschine, die mit mehreren gleichzeitig bedienten Stanzwerkzeugen (3A-3B) ausgerüstet ist, wobei die Höhenunterschiede der Stanzwerkzeuge mittels eines aus komprimierbarem Material gefertigten Zurichtbogens (13), der mit den Stanzwerkzeugen (3A-3B) zusammenwirkt, ausgeglichen werden, dadurch gekennzeichnet, dass eine aus Polykarbonat oder einem Material auf Basis von Polykarbonat gefertigte Platte als Zurichtbogen (13) verwendet wird.
  2. Verfahren gemäß Anspruch 1, dadurch gekennzeichnet, dass ein Zurichtbogen (13) verwendet wird, der 0,1 bis 1 mm dick ist.
  3. Verfahren gemäß Anspruch 1, dadurch gekennzeichnet, dass ein Zurichtbogen (13) verwendet wird, der 0,4 bis 0,6 mm dick ist.
  4. Verfahren gemäß Anspruch 1, dadurch gekennzeichnet, dass ein Zurichtbogen (13) verwendet wird, der 0,5 mm dick ist.
  5. Verfahren gemäß einem der vorgenannten Ansprüche, dadurch gekennzeichnet, dass ein Zurichtbogen (13) verwendet wird, der hauptsächlich aus Polykarbonat geformt ist.
  6. Verfahren gemäß einem der vorgenannten Ansprüche, dadurch gekennzeichnet, dass ein Zurichtbogen (13) verwendet wird, der aus reinem Polykarbonat geformt ist.
  7. Verfahren gemäß einem der vorgenannten Ansprüche, dadurch gekennzeichnet, dass der Zurichtbogen (13) direkt mit den Rücken (5) der Stanzwerkzeuge (3A-3B) in Kontakt gebracht wird.
  8. Verfahren gemäß Anspruch 7, dadurch gekennzeichnet, dass der Zurichtbogen (13) zwischen einer Stanzform (2) und einer Stanzplatte (4) befestigt ist.
  9. Verfahren gemäß einem der vorgenannten Ansprüche, dadurch gekennzeichnet, dass das Zurichten ausgeführt wird, indem systematisch der Stanzwerkzeugdruck erhöht wird, bis alle Stanzwerkzeuge (3A-3B) mit ihren Stanzkanten (12) in der erforderlichen Höhe angeordnet sind.
  10. Verfahren gemäß einem der vorgenannten Ansprüche, dadurch gekennzeichnet, dass es zum Stanzen von Kartonagepappe oder anderem vergleichbarem Material, das gestanzt werden kann, verwendet wird.
  11. Verfahren gemäß einem der vorgenannten Ansprüche, dadurch gekennzeichnet, dass Stanzwerkzeuge (3A-3B) mit stumpfen, spezieller flachen Rücken (5) verwendet werden.
  12. Stanzmaschine, ausgerüstet mit mehreren, gleichzeitig bedienten Stanzwerkzeugen (3A-3B) und einem aus komprimierbarem Material gefertigten Zurichtbogen (13), dadurch gekennzeichnet, dass der Bogen (13) hauptsächlich aus Polykarbonat besteht.
EP19970200768 1996-03-26 1997-03-14 Verfahren zum Zurichten van Stanzwerkzeugen, sowie mit einem solchen Zurichtbogen ausgerüstete Stanzmaschine Expired - Lifetime EP0798086B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE9600270 1996-03-26
BE9600270A BE1010067A6 (nl) 1996-03-26 1996-03-26 Werkwijze voor het instellen van stansmessen, compensatieplaat hiertoe aangewend en stansmachine die met zulke compensatieplaat is uitgerust.

Publications (2)

Publication Number Publication Date
EP0798086A1 EP0798086A1 (de) 1997-10-01
EP0798086B1 true EP0798086B1 (de) 2001-10-10

Family

ID=3889636

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19970200768 Expired - Lifetime EP0798086B1 (de) 1996-03-26 1997-03-14 Verfahren zum Zurichten van Stanzwerkzeugen, sowie mit einem solchen Zurichtbogen ausgerüstete Stanzmaschine

Country Status (6)

Country Link
EP (1) EP0798086B1 (de)
AU (1) AU1649297A (de)
BE (1) BE1010067A6 (de)
CA (1) CA2201016A1 (de)
DE (1) DE69707182T2 (de)
ES (1) ES2165560T3 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004023736A1 (de) * 2003-09-04 2005-04-07 Metall + Plastic Gmbh Vorrichtung und Verfahren zum Stanzen von Verpackungselementen od. dgl.
DE20313904U1 (de) * 2003-09-04 2003-12-11 Metall + Plastic Gmbh Vorrichtung zum Stanzen von Verpackungselementen o.dgl.
DE102009056169A1 (de) * 2009-11-27 2011-06-01 Heidelberger Druckmaschinen Ag Verfahren zum Zurichten von Werkzeugen
DE102011014858A1 (de) 2010-04-20 2011-10-20 Heidelberger Druckmaschinen Ag Stanzstation mit Zurichtvorrichtung
DE102014104105A1 (de) * 2014-03-25 2015-10-01 AXIAL Ingenieurgesellschaft für Maschinenbau mbH Zurichtbogen für Präge- und Stanzmaschinen
CN104827514A (zh) * 2014-12-31 2015-08-12 苏州市博奥塑胶电子有限公司 一种新型上模具

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1007549A (en) * 1963-08-28 1965-10-13 Deritend Eng Co Improvements relating to formes
DE3317777C1 (de) * 1983-05-16 1984-09-13 R + S Stanzformen GmbH, 6000 Frankfurt Bandstahlstanzwerkzeug fuer Zuschnitte aus Karton od.dgl.
US5172622A (en) * 1991-11-12 1992-12-22 Lamcraft, Inc. Quick change die cutter

Also Published As

Publication number Publication date
EP0798086A1 (de) 1997-10-01
AU1649297A (en) 1997-10-02
BE1010067A6 (nl) 1997-12-02
DE69707182T2 (de) 2002-05-29
DE69707182D1 (de) 2001-11-15
ES2165560T3 (es) 2002-03-16
CA2201016A1 (en) 1997-09-26

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