SE9603230D0 - Device for holding a blank in a pressure cell press and a pressure cell press - Google Patents

Device for holding a blank in a pressure cell press and a pressure cell press

Info

Publication number
SE9603230D0
SE9603230D0 SE9603230A SE9603230A SE9603230D0 SE 9603230 D0 SE9603230 D0 SE 9603230D0 SE 9603230 A SE9603230 A SE 9603230A SE 9603230 A SE9603230 A SE 9603230A SE 9603230 D0 SE9603230 D0 SE 9603230D0
Authority
SE
Sweden
Prior art keywords
pressure
pressure cell
cell press
holding
moulding
Prior art date
Application number
SE9603230A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE511047C2 (en
SE9603230L (en
Inventor
Keijo Hellgren
Lennart Svensson
Original Assignee
Asea Brown Boveri
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 Asea Brown Boveri filed Critical Asea Brown Boveri
Priority to SE9603230A priority Critical patent/SE511047C2/en
Publication of SE9603230D0 publication Critical patent/SE9603230D0/en
Priority to ES97939294T priority patent/ES2200193T3/en
Priority to PCT/SE1997/001477 priority patent/WO1999012730A1/en
Priority to DE69722456T priority patent/DE69722456T2/en
Priority to EP97939294A priority patent/EP0961683B1/en
Priority to CA002309608A priority patent/CA2309608A1/en
Priority to AT97939294T priority patent/ATE241460T1/en
Publication of SE9603230L publication Critical patent/SE9603230L/en
Publication of SE511047C2 publication Critical patent/SE511047C2/en

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
    • B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
    • B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
    • B21D26/021—Deforming sheet bodies
    • B21D26/025—Means for controlling the clamping or opening of the moulds
    • 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
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/10—Stamping using yieldable or resilient pads
    • B21D22/12—Stamping using yieldable or resilient pads using enclosed flexible chambers
    • 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
    • B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
    • B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
    • B21D26/021—Deforming sheet bodies
    • B21D26/029—Closing or sealing means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/26—Component parts, details or accessories; Auxiliary operations
    • B29C51/261—Handling means, e.g. transfer means, feeding means
    • B29C51/262—Clamping means for the sheets, e.g. clamping frames
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/36—Moulds for making articles of definite length, i.e. discrete articles
    • B29C43/3642—Bags, bleeder sheets or cauls for isostatic pressing

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)

Abstract

The mechanism holds the sheet material (31) inside a cold forming press during moulding, during which some parts of the material move as it is pressed against a die by hydraulic pressure applied via an elastic membrane (4) on one side of the material. A first device (18) is used to generate a hydraulic pressure for holding the material in place and a cylinder arrangement (15,16,17a) transmits this pressure to a piston (14) and also maintains the pressure. The piston is designed to urge a part of the material against a retainer (13) while the hydraulic pressure is maintained. A valve (20) is also provided which is directly affected by the moulding pressure and reduces the pressure applied to the material to hold it in place once the moulding pressure reaches a pre-determined level.
SE9603230A 1996-09-04 1996-09-04 Holder mechanism for cold forming press used in moulding of car bodywork parts SE511047C2 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
SE9603230A SE511047C2 (en) 1996-09-04 1996-09-04 Holder mechanism for cold forming press used in moulding of car bodywork parts
ES97939294T ES2200193T3 (en) 1996-09-04 1997-09-05 DEVICE THAT ALLOWS YOU TO SUBJECT A GROSS PIECE IN A CELL PRESS FULL OF FLUID AND CELL PRESS FILLED WITH FLUID.
PCT/SE1997/001477 WO1999012730A1 (en) 1996-09-04 1997-09-05 A device for holding a blank in a fluid cell press and a fluid cell press
DE69722456T DE69722456T2 (en) 1996-09-04 1997-09-05 DEVICE FOR HOLDING A CUT IN A LIQUID CELL PRESS, AND LIQUID CELL PRESS
EP97939294A EP0961683B1 (en) 1996-09-04 1997-09-05 A device for holding a blank in a fluid cell press and a fluid cell press
CA002309608A CA2309608A1 (en) 1996-09-04 1997-09-05 A device for holding a blank in a fluid cell press and a fluid cell press
AT97939294T ATE241460T1 (en) 1996-09-04 1997-09-05 DEVICE FOR HOLDING A BLANK IN A LIQUID CELL PRESS, AND LIQUID CELL PRESS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9603230A SE511047C2 (en) 1996-09-04 1996-09-04 Holder mechanism for cold forming press used in moulding of car bodywork parts

Publications (3)

Publication Number Publication Date
SE9603230D0 true SE9603230D0 (en) 1996-09-04
SE9603230L SE9603230L (en) 1998-03-05
SE511047C2 SE511047C2 (en) 1999-07-26

Family

ID=20403779

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9603230A SE511047C2 (en) 1996-09-04 1996-09-04 Holder mechanism for cold forming press used in moulding of car bodywork parts

Country Status (1)

Country Link
SE (1) SE511047C2 (en)

Also Published As

Publication number Publication date
SE511047C2 (en) 1999-07-26
SE9603230L (en) 1998-03-05

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Legal Events

Date Code Title Description
NUG Patent has lapsed