US3739676A - Means for fastening cutting dies on a base plate - Google Patents

Means for fastening cutting dies on a base plate Download PDF

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Publication number
US3739676A
US3739676A US00206801A US3739676DA US3739676A US 3739676 A US3739676 A US 3739676A US 00206801 A US00206801 A US 00206801A US 3739676D A US3739676D A US 3739676DA US 3739676 A US3739676 A US 3739676A
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US
United States
Prior art keywords
base plate
die
yoke
cutting dies
fastening
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
US00206801A
Inventor
Y Gerdin
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.)
Santrade Ltd
Original Assignee
Sandvik AB
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 Sandvik AB filed Critical Sandvik AB
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Publication of US3739676A publication Critical patent/US3739676A/en
Assigned to SANTRADE LTD., A CORP. OF SWITZERLAND reassignment SANTRADE LTD., A CORP. OF SWITZERLAND ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: SANDVIK AKTIEBOLAG, A CORP. OF SWEDEN
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D37/00—Tools as parts of machines covered by this subclass
    • B21D37/04—Movable or exchangeable mountings for tools
    • 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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C14—SKINS; HIDES; PELTS; LEATHER
    • C14B—MECHANICAL TREATMENT OR PROCESSING OF SKINS, HIDES OR LEATHER IN GENERAL; PELT-SHEARING MACHINES; INTESTINE-SPLITTING MACHINES
    • C14B5/00—Clicking, perforating, or cutting leather
    • C14B5/02—Stamps or dies for leather articles
    • 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
    • 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
    • Y10T83/9457—Joint or connection
    • Y10T83/9473—For rectilinearly reciprocating tool

Definitions

  • the invention aims at a solution of these problems by means of a resilient snap device which presses the dies against the base plate.
  • the invention will be more specifically described in the following specification with drawing figures showing:
  • FIG. 1 cross section of a fastening device according to the invention.
  • FIG. 2 a section on line 2-2 in FIG. 1.
  • FIG. 3 a section on line 3-3 in FIG. 1.
  • FIG. 4 the same fastening device seen from the cutting edge side of the knife.
  • the cutting die is attached to the base plate 11 by means of a yoke consisting of a spring 12 and two hooks l3 riveted thereto.
  • the spring bears against a tie member 14'on the die 10 and the hooks enter into holes 15 in the base plate, said holes having wider portions 16 at the bottom side of the plate for catching engagement of the hooks.
  • the wider portion 16 is so deep that there is room for the head of the hook in it.
  • the yoke forms a unit that is separate from the die, and thus the die is free to move somewhat laterally in all directions and also to be somewhat turned around an axis perpendicular to the base plate at the same time asit is held in contact with the base plate by the pressure of the 2 spring 12.
  • the hooks comprise an upper portion 17 having a greater diameter than the holes 15 and a lower portion 18 having a smaller diameter than the holes 15.
  • the portion 18 has at its lower end a laterally extending projection 19 which engages the wider portion 16. As is indicated in FIG. 1, these projections 19, 19 preferably extend in opposite directions with regard to each other, for ready dislodgement.
  • the holes 15 are arranged in a pattern forming the comers of a regular hexagon so that the yoke can be placed in any pair of diametrically opposed holes in the hexagon. This makes it possible to orientate the die in an arbitrary direction around an axis perpendicular to the plate. Of course other patterns of holes can be used for the same purpose.
  • the described fastening device renders the die yieldable in the lateral direction, so that adjacent knives adjust themselves automatically in relation to one another and the lateral forces between them are eliminated.
  • the device is also easy to attach and to detach.
  • Means for fastening cutting dies on a base plate comprising a resilient yoke with one hook at each end, said hooks engaging recesses in the plate, the intermediate portion of the yoke acting on the die, urging it resiliently against the plate.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Distillation Of Fermentation Liquor, Processing Of Alcohols, Vinegar And Beer (AREA)

Abstract

A die is secured to a base plate by a resilient yoke which has hooks engaging recesses in the base plate. This mode of fastening permits the die to yield somewhat in the lateral direction and hence promotes automatic adjustment of adjacent knives.

Description

1mm Sfiates Patent [1 1 [111 3,739,676 Gerdin 1 June 19, 1973 MEANS FOR FASTENING CUTTING DIES ON A BASE PLATE [56 References Cited [75] Inventor: Yngve Gerdin, Mjallom, Sweden UNITED STATES PATENTS 3,373,643 3/1968 Spengler 83/698 X [73] Asslgnee' 2:132: Akuebolag Sandv'ken 3,354,766 11/1967 Daalderop 83/698 x [22] Filed: 1 1 Primary EJraminer Willie G. Abercrombie [211 App] No 206 801 Attorney-Ralph E. Parker and Eugene J. Roberts [57] ABSTRACT 30 F P orelgn App canon Horny Data A die is secured to a base plate by a resilient yoke Dec. 14, Sweden has hooks g g g recesses in the base plate This mode of fastening permits the die to yield some- What in the lateral direction and hence promotes auto [58] Field O i S Ql L I QIT........:::: /65 691 694 mafic adjustment adjacent knives 83/684 2 Claims, 4 Drawing Figures MEANS FOR FASTENING CUTTING DIES ON A BASE PLATE This invention relates to cutting dies, and is concerned with resiliently securing a die to a base plate.
For punching figures from a sheet shaped material a number of cutting dies, each forming a closed figure, are mounted on a base plate. It has proved difficult to make a fastening which is easy to connect and disconnect for-replacing and moving the dies. It has also been a problem to prevent the dies from being deformed by material that becomes wedged between adjacent dies.
The invention aims at a solution of these problems by means of a resilient snap device which presses the dies against the base plate. The invention will be more specifically described in the following specification with drawing figures showing:
FIG. 1, cross section of a fastening device according to the invention.
FIG. 2, a section on line 2-2 in FIG. 1.
FIG. 3, a section on line 3-3 in FIG. 1.
FIG. 4, the same fastening device seen from the cutting edge side of the knife.
The cutting die is attached to the base plate 11 by means of a yoke consisting of a spring 12 and two hooks l3 riveted thereto. The spring bears against a tie member 14'on the die 10 and the hooks enter into holes 15 in the base plate, said holes having wider portions 16 at the bottom side of the plate for catching engagement of the hooks. The wider portion 16 is so deep that there is room for the head of the hook in it. The yoke forms a unit that is separate from the die, and thus the die is free to move somewhat laterally in all directions and also to be somewhat turned around an axis perpendicular to the base plate at the same time asit is held in contact with the base plate by the pressure of the 2 spring 12.
The hooks comprise an upper portion 17 having a greater diameter than the holes 15 and a lower portion 18 having a smaller diameter than the holes 15. The portion 18 has at its lower end a laterally extending projection 19 which engages the wider portion 16. As is indicated in FIG. 1, these projections 19, 19 preferably extend in opposite directions with regard to each other, for ready dislodgement. On the inside of portion 17 there is a bevel 20 serving to provide a better grip for detaching the yoke 12, 13. This is preferably performed by means of a tool that is similar to a pair of tongs with outwardly moving jaws which simultaneously act on the surface 20 on both hooks 13.
The holes 15 are arranged in a pattern forming the comers of a regular hexagon so that the yoke can be placed in any pair of diametrically opposed holes in the hexagon. This makes it possible to orientate the die in an arbitrary direction around an axis perpendicular to the plate. Of course other patterns of holes can be used for the same purpose.
The described fastening device renders the die yieldable in the lateral direction, so that adjacent knives adjust themselves automatically in relation to one another and the lateral forces between them are eliminated. The device is also easy to attach and to detach.
I claim:
1. Means for fastening cutting dies on a base plate, comprising a resilient yoke with one hook at each end, said hooks engaging recesses in the plate, the intermediate portion of the yoke acting on the die, urging it resiliently against the plate.
2. Means as defined in claim 1 in which the yoke bears against a tie member of the die.

Claims (2)

1. Means for fastening cutting dies on a base plate, comprising a resilient yoke with one hook at each end, said hooks engaging recesses in the plate, the intermediate portion of the yoke acting on the die, urging it resiliently against the plate.
2. Means as defined in claim 1 in which the yoke bears against a tie member of the die.
US00206801A 1970-12-14 1971-12-10 Means for fastening cutting dies on a base plate Expired - Lifetime US3739676A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE16877/70A SE338844B (en) 1970-12-14 1970-12-14

Publications (1)

Publication Number Publication Date
US3739676A true US3739676A (en) 1973-06-19

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US00206801A Expired - Lifetime US3739676A (en) 1970-12-14 1971-12-10 Means for fastening cutting dies on a base plate

Country Status (11)

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US (1) US3739676A (en)
AT (1) AT314341B (en)
AU (1) AU463423B2 (en)
CA (1) CA942183A (en)
DK (1) DK132209C (en)
ES (1) ES200877Y (en)
FR (1) FR2118527A5 (en)
GB (1) GB1329906A (en)
IT (1) IT953145B (en)
NO (1) NO134732C (en)
SE (1) SE338844B (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4116100A (en) * 1976-02-24 1978-09-26 Sandvik Aktiebolag Device for fastening cutting dies on a base plate
US5192011A (en) * 1990-04-10 1993-03-09 Bobst Sa Device for separating blanks for packages from a sheet of blanks
US6233809B1 (en) * 1996-09-06 2001-05-22 Ontario Die Company Limited Flexible cutting knives and method of mounting cutting knife cavities with mounting braces on a non metallic mounting board
US20040007114A1 (en) * 1999-10-15 2004-01-15 Johnson Michael J. Steel rule die with removable cutting units
US20040211303A1 (en) * 2002-11-07 2004-10-28 Horning Marty Paul Steel rule cutting die and method of mounting cutting knife cavities for improved scrap material removal
WO2005053919A1 (en) * 2003-12-01 2005-06-16 Ontario Die International Inc. Punch for a braced die
US20050132856A1 (en) * 2003-12-01 2005-06-23 Geffros Michael R. Punch for a braced die
US20120111165A1 (en) * 2009-07-16 2012-05-10 Winkler + Dünnebier Gmbh Foil cutter and solid cutter roll

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2528044B (en) 2014-07-04 2018-08-22 Arc Devices Ni Ltd Non-touch optical detection of vital signs

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3354766A (en) * 1965-06-14 1967-11-28 Konink Metaalfab Voorheen J N Tool carrying device for an eccentric press
US3373643A (en) * 1966-02-11 1968-03-19 United Shoe Machinery Corp Apparatus for punching out workpieces

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3354766A (en) * 1965-06-14 1967-11-28 Konink Metaalfab Voorheen J N Tool carrying device for an eccentric press
US3373643A (en) * 1966-02-11 1968-03-19 United Shoe Machinery Corp Apparatus for punching out workpieces

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4116100A (en) * 1976-02-24 1978-09-26 Sandvik Aktiebolag Device for fastening cutting dies on a base plate
US5192011A (en) * 1990-04-10 1993-03-09 Bobst Sa Device for separating blanks for packages from a sheet of blanks
US6233809B1 (en) * 1996-09-06 2001-05-22 Ontario Die Company Limited Flexible cutting knives and method of mounting cutting knife cavities with mounting braces on a non metallic mounting board
US20040007114A1 (en) * 1999-10-15 2004-01-15 Johnson Michael J. Steel rule die with removable cutting units
US7121182B2 (en) 1999-10-15 2006-10-17 Ontario Die International, Inc. Steel rule die with removable cutting units
US20040211303A1 (en) * 2002-11-07 2004-10-28 Horning Marty Paul Steel rule cutting die and method of mounting cutting knife cavities for improved scrap material removal
WO2005053919A1 (en) * 2003-12-01 2005-06-16 Ontario Die International Inc. Punch for a braced die
US20050132856A1 (en) * 2003-12-01 2005-06-23 Geffros Michael R. Punch for a braced die
US7174821B2 (en) 2003-12-01 2007-02-13 Ontario Die International Inc. Punch for a braced die
US20120111165A1 (en) * 2009-07-16 2012-05-10 Winkler + Dünnebier Gmbh Foil cutter and solid cutter roll

Also Published As

Publication number Publication date
NO134732B (en) 1976-08-30
DE2160933A1 (en) 1972-06-22
SE338844B (en) 1971-09-20
FR2118527A5 (en) 1972-07-28
NO134732C (en) 1976-12-08
DE2160933B2 (en) 1976-02-19
AU3652271A (en) 1973-06-14
IT953145B (en) 1973-08-10
DK132209B (en) 1975-11-10
CA942183A (en) 1974-02-19
AU463423B2 (en) 1975-07-24
DK132209C (en) 1976-04-20
ES200877U (en) 1975-11-01
GB1329906A (en) 1973-09-12
AT314341B (en) 1974-03-25
ES200877Y (en) 1976-02-16

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Legal Events

Date Code Title Description
AS Assignment

Owner name: SANTRADE LTD., ALPENQUAI 12, CH-6002, LUCERNE, SWI

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:SANDVIK AKTIEBOLAG, A CORP. OF SWEDEN;REEL/FRAME:004085/0132

Effective date: 19820908