EP2347871B1 - Cutting die damper - Google Patents

Cutting die damper Download PDF

Info

Publication number
EP2347871B1
EP2347871B1 EP10460050.7A EP10460050A EP2347871B1 EP 2347871 B1 EP2347871 B1 EP 2347871B1 EP 10460050 A EP10460050 A EP 10460050A EP 2347871 B1 EP2347871 B1 EP 2347871B1
Authority
EP
European Patent Office
Prior art keywords
damper
cutting die
mushroom
shaped element
sleeve
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.)
Not-in-force
Application number
EP10460050.7A
Other languages
German (de)
French (fr)
Other versions
EP2347871A1 (en
Inventor
Piotr Blaut
Roman Radomski
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.)
Chespa Wykrojniki Sp Z Oo
Original Assignee
Chespa Wykrojniki Sp Z Oo
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 Chespa Wykrojniki Sp Z Oo filed Critical Chespa Wykrojniki Sp Z Oo
Publication of EP2347871A1 publication Critical patent/EP2347871A1/en
Application granted granted Critical
Publication of EP2347871B1 publication Critical patent/EP2347871B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B26D7/01—Means for holding or positioning work
    • B26D7/02—Means for holding or positioning work with clamping means
    • B26D7/025—Means for holding or positioning work with clamping means acting upon planar surfaces
    • 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
    • B26D7/06—Arrangements for feeding or delivering work of other than sheet, web, or filamentary form
    • B26D7/0608—Arrangements for feeding or delivering work of other than sheet, web, or filamentary form by pushers

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)
  • Punching Or Piercing (AREA)
  • Springs (AREA)

Description

  • The subject matter of the patent is a cutting die damper used to improve the adherence of the die cut material to the stripping board in the process of stripping the edges of the die cut material.
  • Well known and commonly used are the external machines for detaching the die cut material from the punch or die in the form of mandrels with a piece of plate attached at their end that is inserted between the punch and the sheet of the die cut material. Then the material is detached using levers or using the plate as a wedge. There are also known cutting die dampers that are attached to the punch plate as described in the German description of utility model No. DE 202008002306 . These dampers consist of two sleeves located one in the other and bolstered on the spring placed inside the sleeve which is supported on one side on the bolted cover and on the other side on the internal wall of the internal sleeve. The case of the commonly used damper is placed in the punch plate aperture that on the external side has four symmetrically aligned protrusion lines that keep the damper in the punch plate aperture.
  • The known solution is complicated and expensive in fabrication, which, considering a large amount of dampers used per punch (at least four) increases the cost of cutting dies.
  • In order to eliminate this disadvantage, a cutting die damper as per the patent was designed.
  • The cutting die damper as per the patent consists of two elements which slide in one axis and a spring aligning the position of the two elements against each other. In its top part, the internal damper sleeve has a mushroom-shaped element and is placed in a pass-through body provided with a flat bar fixing the body to the cutting die base. The flat bar fixing the body supports a spring that at the other end rests against the mushroom-shaped element of the internal sleeve. This spring is located outside the working elements. At the top part of the mushroom-shaped element there is a permanently fixed threaded insert into which there is driven the screw which fixes the mushroom-shaped element to the plate reflecting the shape of the die cut material. The damper's body has on the internal side of the pass-through aperture a formed ring the diameter of which is not smaller than the diameter of the sleeve. The ring supports a screw-mounted disk which fixes the sleeve in the damper's body. The body is connected with the cutting die base using the fixing flat bar. The design of the cutting die damper as per the patent allows fixing a number of dampers in the cutting die and, during the cycle of die cutting and/or die cut material edge stripping, supports the entire surface of the material.
  • The cutting die damper as per the patent was shown on the illustration. Illustration No. 1 shows the damper mounted in the cutting die, while illustration No. 2 - cross section of the damper.
  • The cutting die damper as per the patent and designed for use at the die cut material edge stripping board consists of two elements which slide in one axis and a spring which is located outside the elements. The spring aligns the position of the two elements against each other. In its top part, internal damper sleeve (1) has a mushroom-shaped element (2) and is placed in a pass-through body (3) provided with a flat bar (4) fixing the body to stripping board (10) of the cutting die. The flat bar (4) fixing the body supports an external spring (5) that at the other end rests against the mushroom-shaped element (2) of the internal sleeve (1). At the top part of the mushroom-shaped element (2) there is a permanently fixed threaded insert (6) into which there is driven the screw which fixes the mushroom-shaped element to the stripping board (9) reflecting the shape of the die cut material. The damper's body (3) has on the internal side of the pass-through aperture a formed ring (7) the diameter of which is not smaller than the diameter of the sleeve (1). The ring supports a screw-mounted disk (8) which fixes the sleeves in the damper's body (3). The body (3) is connected with the stripping board (10) of the cutting die using the fixing flat bar (4).
  • The design of the cutting die damper as per the patent allows fixing a number of dampers in the stripping board of the cutting die and, after the cycle of die cutting and/or die cut material edge stripping, lifts the plate with this material to the conveyor.

Claims (3)

  1. A damper for a cutting dye, the damper consisting of two elements which slide in one axis and a spring that aligns the position of the two elements against each other, characterised in that an internal sleeve (1) together with a top mushroom-shaped element (2) is placed in a pass-through body (3) provided with a fixing flat bar (4) that supports an external spring (5) which from the top rests against the mushroom-shaped element (2).
  2. The cutting die damper as per claim 1, characterised in that at the top part of the mushroom-shaped element (2) there is a permanently fixed threaded insert (6) while in the body (3) on the internal side of the aperture there is a formed ring (7) the diameter of which is not smaller than the diameter of the sleeve (1) which supports a disk (8) which fixes the internal sleeve (1) in the body (3).
  3. The cutting die damper as per claim 1 and 2, characterised in that the mushroom-shaped element (2) including the insert (6) is fixed to the plate (9) while the body (3) with the flat bar (4) is attached to the cutting die base (10).
EP10460050.7A 2010-01-21 2010-12-20 Cutting die damper Not-in-force EP2347871B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL11873110 2010-01-21

Publications (2)

Publication Number Publication Date
EP2347871A1 EP2347871A1 (en) 2011-07-27
EP2347871B1 true EP2347871B1 (en) 2016-03-30

Family

ID=43896680

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10460050.7A Not-in-force EP2347871B1 (en) 2010-01-21 2010-12-20 Cutting die damper

Country Status (1)

Country Link
EP (1) EP2347871B1 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6755104B2 (en) * 2002-07-01 2004-06-29 David S. Grant Stripper plate supporting assembly
DE20307009U1 (en) * 2003-05-06 2003-06-26 Marbach Karl Gmbh & Co Kg Clamp for holding a carton panel during separation of die-cut sections from surplus material by a punch, includes frame with spring mounted pushrod guide
TWI274731B (en) * 2003-09-01 2007-03-01 Bobst Sa Pressing unit for separating the diecut blanks of a sheet
DE202006017644U1 (en) * 2006-11-20 2007-02-08 Karl Marbach Gmbh & Co. Kg Press clamping apparatus for use in automatic punching machine for cardboard boxes, has radial recesses, formed around radial passage of main board, which pass through radial projections around cylindrical base of guiding device
DE202008002306U1 (en) 2008-02-20 2008-05-21 Karl Marbach Gmbh & Co. Kg Device for clamping parts, in particular in stamping machines

Also Published As

Publication number Publication date
EP2347871A1 (en) 2011-07-27

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