GB160769A - Presses for cupping or drawing sheet material - Google Patents

Presses for cupping or drawing sheet material

Info

Publication number
GB160769A
GB160769A GB7426/21A GB742621A GB160769A GB 160769 A GB160769 A GB 160769A GB 7426/21 A GB7426/21 A GB 7426/21A GB 742621 A GB742621 A GB 742621A GB 160769 A GB160769 A GB 160769A
Authority
GB
United Kingdom
Prior art keywords
pawls
cupping
punch
rods
sleeves
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
Application number
GB7426/21A
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.)
EW Bliss Co Inc
Original Assignee
EW Bliss Co Inc
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 EW Bliss Co Inc filed Critical EW Bliss Co Inc
Publication of GB160769A publication Critical patent/GB160769A/en
Expired legal-status Critical Current

Links

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
    • B21D24/00—Special deep-drawing arrangements in, or in connection with, presses
    • B21D24/02—Die-cushions

Landscapes

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

Abstract

160,769. Bliss Co., E. W., (Assignees of Klocke, W.). March 20, 1920, [Convention date]. Cupping. - In a cupping press having a die G with a yielding bottom H which may indent or emboss portions of the blank, this is prevented from collapsing the cup X, held by blank holder D, when the punch B recedes. Sleeves 10, adapted to move with the bottom H, have pawls 14 which fall into recesses 15 in rods 12, adjustably connected to the blank holder D, so that the springs L cannot lift the bottom H until the holder D rises. To make the action of the pawls certain the sleeves 10 are depressed positively, towards the end of the stroke of the punch, by levers 30 and rods 39 adjustably carried by the punch, and in addition tails 23 on the pawls are engaged by stop-nuts 21a on fixed rods 20. Stop-nuts 21 prevent the pawls 14 from falling into the recesses 15 during the clamping stroke.
GB7426/21A 1920-03-20 1921-03-08 Presses for cupping or drawing sheet material Expired GB160769A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US160769XA 1920-03-20 1920-03-20

Publications (1)

Publication Number Publication Date
GB160769A true GB160769A (en) 1922-06-08

Family

ID=21775257

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7426/21A Expired GB160769A (en) 1920-03-20 1921-03-08 Presses for cupping or drawing sheet material

Country Status (1)

Country Link
GB (1) GB160769A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009037854A1 (en) * 2009-08-18 2011-02-24 Erwin A. Lang Gmbh & Co. Kg Pressing tool for use in molding press that forms door of passenger car, has coupling device provided at blank holder for controlling relative movement of holder, down holding device and formed part during lifting of die plate from punch

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009037854A1 (en) * 2009-08-18 2011-02-24 Erwin A. Lang Gmbh & Co. Kg Pressing tool for use in molding press that forms door of passenger car, has coupling device provided at blank holder for controlling relative movement of holder, down holding device and formed part during lifting of die plate from punch

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