US3323348A - Multiple opening die and adjusting means therefor - Google Patents

Multiple opening die and adjusting means therefor Download PDF

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Publication number
US3323348A
US3323348A US280342A US28034263A US3323348A US 3323348 A US3323348 A US 3323348A US 280342 A US280342 A US 280342A US 28034263 A US28034263 A US 28034263A US 3323348 A US3323348 A US 3323348A
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US
United States
Prior art keywords
die
pivot plate
stud
holder
handle
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
US280342A
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English (en)
Inventor
Eugene W Pearson
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.)
Pacific Press and Shear Corp
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Pacific Press and Shear Corp
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 Pacific Press and Shear Corp filed Critical Pacific Press and Shear Corp
Priority to US280342A priority Critical patent/US3323348A/en
Priority to GB8670/64A priority patent/GB999939A/en
Priority to DE19641452821 priority patent/DE1452821B1/de
Application granted granted Critical
Publication of US3323348A publication Critical patent/US3323348A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/02—Bending sheet metal along straight lines, e.g. to form simple curves on press brakes without making use of clamping means
    • B21D5/0209—Tools therefor
    • 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
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/02—Bending sheet metal along straight lines, e.g. to form simple curves on press brakes without making use of clamping means

Definitions

  • multiple opening dies may be employed, wherein a selected one of a number of available die grooves or openings may be presented for cooperation with the knife die to effect the desired bending of the sheet metal.
  • Such multiple opening dies weigh up wards of 150 pounds, and in instances could approach 1,000 pounds or more, as they may range in length of the order of 6 to 20 feet. Because of such length and Weight, it usually takes a considerable amount of time and effort to lift such multiple opening die from its holder and rotate it to its different positions to elfect the desired adjustment of such die.
  • FIG. 1 is a longitudinal view, partly in section, of a multiple opening die and holder, installed in a press brake and showing the invention associated therewith;
  • FIGURE 2 is a view corresponding to FIGURE 1, and depicting the invention in operation;
  • FIGURE 3 is an enlarged end view, taken in the plane 3--3 of FIGURE 1;
  • FIGURE 4 is an end view, taken in plane 4-4 of FIGURE 1.
  • the multiple opening die is of polygonal cross section, thus involving a plurality of sides, in each of which is provided a longitudinal metal bending groove or slot opening 11, I3, 15, 17 etc., each having different crosssectional shape than the others.
  • the holder 5 for such die includes a trough adapted to cradle the die, the trough having a sectional contour conforming to that of the die.
  • the press brake ram 21 to the lower ice edge of which is affixed a knife die 23 in vertical spaced relationship to the multiple die, and adapted to be lowered into meshing engagement with the die opening which happens to be in cooperative alignment therewith.
  • Adjacent one end of the die holder is provided means, preferably in the form of a shelf type bracket 31 for pivotally supporting a pivot plate 33, while adjacent the opposite end of the holder, is means for pivotally supporting a similar type pivot plate 35, such latter means including a bracket 37 having an upright 39 with an opening 41 therethrough on substantially the longitudinal axis of the multiple opening die 3.
  • Each of these studs may take the form of a shoulder screw threaded into its end of the die, such screw terminating at its free end in a head 51.
  • the first pivot plate is installed, in which position, it reposes at an angle to the vertical, the pivot plate being preferably provided with a notch 52 in its lower edge to straddle the bracket 31, and a notch 53 in the upper edge thereof to receive the proximate stud 45.
  • the corresponding pivot plate 35 at the opposite end of the die is disposed between the bracket 37 and the proximate end 59 of the multiple opening die, to occupy an angular position substantially parallel to that of the first pivot plate 33, and like the first pivot plate, it is also preferably provided with a notch in the lower edge to straddle the bracket and a notch in the upper edge thereof to receive the proximate stud.
  • the stud or shoulder screw 47 is passed through the mounting hole 60 of a handle and the opening 41 of the bracket 37, when assembling the stud to the die, the handle terminating in an extension 67 beyond the stud, of a length sufficient to engage the bracket upright 39 as a fulcrum, and maintain such engagement when the handle is tilted to bring pressure to bear against the head or stop 51, whereby the handle will cause longitudinal shifting of the die, with resulting pivoting of the pivot plates toward a vertical position, and consequent elevation of the die from its position in the holder.
  • the hole 41 through the bracket upright and the mounting hole of the handle are of sufficient size to permit of this result.
  • the same handle With the handle in its die elevating position, the same handle can then be utilized to rotatably adjust the die in either direction of rotation, to bring any of the die openings into functional relationship with the knife die.
  • a collar 68 having a conical or hemispherical side facing the handle and knurled or otherwise formed to provide a plurality of radial teeth 69, while the facing side of the handle is similarly provided with corresponding teeth 71 for meshing engagement with the teeth on the stop, whereby upon tilting the handle to elevate the multiple opening die from its supporting holder, the handle and the stop will interlock, following which, rotation of the handle in either direction, normal to the longitudinal axis of the die, will enable rotational adjustment of the die to any desired position thereof. Following such adjustment, a slow release of the handle will permit the die to settle back onto its holder in position for use.
  • the die may be of a size to warrant the application of power for raising and/ or rotating the same, it is contemplated that hydraulic or other power means may be applied to the handle for such purpose. Preferably, however, the power may be applied directly to the die.
  • Multiple die and adjusting means therefor comprising a multiple die having a plurality of longitudinal, metal bending contour sections therein,
  • pivotal plate means supporting said die at each end thereof at an angular position of said pivotal plate means other than vertical, whereby longitudinal shifting of said die will cause a change in elevation thereof
  • Multiple opening die and adjustment means therefor comprising a multiple opening die having a plurality of longitudinal, metal bending slot openings therein,
  • Multiple opening die and adjustment means therefor comprising a multiple opening die having a plurality of longitudinal, metal bending slot openings therein,
  • a holder for said die including a longitudinal trough
  • said trough having a section contour conforming to that of said die
  • said means for longitudinally shifting said die in a direction to bring about angular rotation of said pivot plates toward a vertical position to elevate said die from its holder, said means including a stop on the free end of said second longitudinal stud, and
  • a handle mounted on said second stud between said other pivot plate supporting means and the proximate stop, and terminating in an extension beyond said stud, suflicient to engage said other pivot plate supporting means as a fulcrum when said handle is tilted into contact with said proximate stop, whereby further tilting of said handle will cause longitudinal shifting of said die, with resulting elevation thereof,
  • Multiple opening die and adjustment mean therefor comprising a multiple opening die having a plurality of longitudinal, metal bending slot openings therein,
  • a holder for said die including a longitudinal trough
  • said trough having a section contour conforming to that of said die.
  • said shifting means including a stop on the free end of said second longitudinal stud
  • a handle mounted on said second stud between said other pivot plate supporting means and the proximate stop, and terminating in an extension beyond said stud, sufficient to engage said other pivot plate supporting means as a fulcrum when said handle is tilted into contact with said proximate stop, whereby further tilting of said handle will cause longitudinal shifting of said die, with resulting elevation thereof,
  • said indexing means including clutch means between said handle and said proximate stop, whereby angular swing of said handle normal to the longitudinal axis of said die, and while said die i retained in its elevated position, will correspondingly rotate said die.
  • An article of manufacture comprising a multiple die of polygonal cross section and having a plurality of longitudinal metal bending groove openings therein,
  • said last stop means including a clutch surface facing the proximate end of said die.
  • Adjusting means for a multiple die of polygonal section having a plurality of metal bending contour sections extending longitudinally thereof, means at each end for engagement in elevating the same from a rest position, and a stop at at least one end beyond the engagement means at such end, said adjusting means comprising a holder for such die, including a longitudinal trough,
  • said trough having a section contour conforming to that of such die
  • pivot plate adapted to normally repose at an angle between said first pivot plate supporting means and the engageable means at one end of such die when such die is at rest in said trough
  • Adjusting means for a multiple die of polygonal section having a plurality of metal bending contour sections extending longitudinally thereof, means at each end for engagement in elevating the same from a rest position, and a stop at at least one end beyond the engagement means at such end, said adjusting means comprising a holder for such die, including a longitudinal trough,
  • said trough having a section contour conforming to that of such die
  • pivot plate adapted to normally repose at an angle between said first pivot plate supporting means and the engageable means at one end of such die when such die is at rest in said trough
  • said means including a handle adapted to fulcrum on said other pivot plate supporting means and bear against the stop on such die when lying in said trough, whereby tilting of said handle will cause longitudinal shifting of such die, with resulting elevation thereof,
  • Adjusting means for a multiple die of polygonal section having a plurality of metal bending contour sections extending longitudinally thereof, stud means at each end for engagement in elevating the same from a rest position, and a stop at at least one end beyond the engagement means at such end, said adjusting means comprising a holder for such die, including a longitudinal trough,
  • said trough having a section contour conforming to that of such die
  • pivot plate adapted to normally repose at an angle between said first pivot plate supporting means and the stud engageable means at one end of such die when such die is at rest in said trough, and including a notch in the upper edge thereof to receive such stud engageable means
  • pivot plate adapted to normally repose at a like angle between said other pivot plate supporting means and the stud engageable means at the other end of such die in substantial parallelism with said first mentioned pivot plate, and including a notch in the upper edge thereof to receive the other stud engageable means
  • said means including a handle adapted to fulcrum on said other pivot plate supporting means and bear against the stop on such die when lying in said trough, whereby tilting of said handle will cause longitudinal shifting of such die, with resulting elevation thereof,

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
US280342A 1963-05-14 1963-05-14 Multiple opening die and adjusting means therefor Expired - Lifetime US3323348A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US280342A US3323348A (en) 1963-05-14 1963-05-14 Multiple opening die and adjusting means therefor
GB8670/64A GB999939A (en) 1963-05-14 1964-03-02 Multiple opening metal bending die and adjusting means therefor
DE19641452821 DE1452821B1 (de) 1963-05-14 1964-04-07 Abkantpresse mit Einstellvorrichtung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US280342A US3323348A (en) 1963-05-14 1963-05-14 Multiple opening die and adjusting means therefor

Publications (1)

Publication Number Publication Date
US3323348A true US3323348A (en) 1967-06-06

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Family Applications (1)

Application Number Title Priority Date Filing Date
US280342A Expired - Lifetime US3323348A (en) 1963-05-14 1963-05-14 Multiple opening die and adjusting means therefor

Country Status (3)

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US (1) US3323348A (de)
DE (1) DE1452821B1 (de)
GB (1) GB999939A (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5001922A (en) * 1989-11-01 1991-03-26 Dana Corporation Quick change tooling for press machine
US5022248A (en) * 1990-10-12 1991-06-11 Caterpillar Inc. Press brake apparatus with powered adjustable female die jaws
US5878619A (en) * 1998-02-09 1999-03-09 Walczak; Kenneth H. Laminated punch and die assemblies
US20070056347A1 (en) * 2005-09-09 2007-03-15 David Leland Brake die inserts
US20070056348A1 (en) * 2005-09-09 2007-03-15 David Leland Brake punch inserts
US20090071223A1 (en) * 2007-09-19 2009-03-19 Rogers Bryan L Staged Tooling Technology
CN105945155A (zh) * 2016-07-20 2016-09-21 孔兵 一种折弯机的下模
CN106238582A (zh) * 2016-09-19 2016-12-21 哈尔滨工业大学 一种采用金属箔材/薄板制造空间可展开舱段的模具

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3009972U (ja) * 1993-09-27 1995-04-18 株式会社アマダメトレックス プレスブレーキ用金型
JP3351185B2 (ja) * 1995-07-14 2002-11-25 トヨタ自動車株式会社 プレス型
AT514291A1 (de) * 2013-07-02 2014-11-15 Trumpf Maschinen Austria Gmbh Biegewerkzeug

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2456749A (en) * 1945-01-12 1948-12-21 James P Steibel Bending means
US2821234A (en) * 1953-04-09 1958-01-28 Earl B Robbins Changeable-face die mechanism
US3029858A (en) * 1959-09-17 1962-04-17 Foundry Equipment Co Press brake

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE621291C (de) * 1935-11-04 Henschel Flugzeug Werke A G Hebeeinrichtung fuer Unterwerkzeuge von Abkantpressen
DE933801C (de) * 1952-10-29 1955-11-24 Otto Oeckl Abkantpresse

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2456749A (en) * 1945-01-12 1948-12-21 James P Steibel Bending means
US2821234A (en) * 1953-04-09 1958-01-28 Earl B Robbins Changeable-face die mechanism
US3029858A (en) * 1959-09-17 1962-04-17 Foundry Equipment Co Press brake

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5001922A (en) * 1989-11-01 1991-03-26 Dana Corporation Quick change tooling for press machine
US5022248A (en) * 1990-10-12 1991-06-11 Caterpillar Inc. Press brake apparatus with powered adjustable female die jaws
US5878619A (en) * 1998-02-09 1999-03-09 Walczak; Kenneth H. Laminated punch and die assemblies
US20070056347A1 (en) * 2005-09-09 2007-03-15 David Leland Brake die inserts
US20070056348A1 (en) * 2005-09-09 2007-03-15 David Leland Brake punch inserts
US7401491B2 (en) 2005-09-09 2008-07-22 David Leland Brake die inserts
US20090071223A1 (en) * 2007-09-19 2009-03-19 Rogers Bryan L Staged Tooling Technology
CN105945155A (zh) * 2016-07-20 2016-09-21 孔兵 一种折弯机的下模
CN106238582A (zh) * 2016-09-19 2016-12-21 哈尔滨工业大学 一种采用金属箔材/薄板制造空间可展开舱段的模具
CN106238582B (zh) * 2016-09-19 2017-12-08 哈尔滨工业大学 一种采用金属箔材/薄板制造空间可展开舱段的模具

Also Published As

Publication number Publication date
DE1452821B1 (de) 1971-02-04
GB999939A (en) 1965-07-28

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