SE9802566D0 - Tool with hydraulically controlled counterbar - Google Patents

Tool with hydraulically controlled counterbar

Info

Publication number
SE9802566D0
SE9802566D0 SE9802566A SE9802566A SE9802566D0 SE 9802566 D0 SE9802566 D0 SE 9802566D0 SE 9802566 A SE9802566 A SE 9802566A SE 9802566 A SE9802566 A SE 9802566A SE 9802566 D0 SE9802566 D0 SE 9802566D0
Authority
SE
Sweden
Prior art keywords
embossing
counterpressure
counterpressure element
hydraulic cylinder
controlled
Prior art date
Application number
SE9802566A
Other languages
Swedish (sv)
Other versions
SE9802566L (en
SE518856C2 (en
Inventor
Lars Persson
Original Assignee
Lars Persson
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 Lars Persson filed Critical Lars Persson
Priority to SE9802566A priority Critical patent/SE518856C2/en
Publication of SE9802566D0 publication Critical patent/SE9802566D0/en
Priority to EP99850120A priority patent/EP0974410A3/en
Publication of SE9802566L publication Critical patent/SE9802566L/en
Publication of SE518856C2 publication Critical patent/SE518856C2/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
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/02—Stamping using rigid devices or tools
    • 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
    • B21D24/10—Devices controlling or operating blank holders independently, or in conjunction with dies
    • B21D24/14—Devices controlling or operating blank holders independently, or in conjunction with dies pneumatically or hydraulically

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Press Drives And Press Lines (AREA)
  • Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)

Abstract

The invention relates to a machine with a hydraulically controlled counterpressure element. The machine comprises a frame and top and lower machine parts (1, 2) in a conventional way for performing the embossing. According to the invention the counterpressure element (6, 11) is connected to a hydraulic cylinder (4, 12), said counterpressure element engaging the plate (3). The hydraulic cylinder (4, 12) is connected to a hydraulic circuit having a controllable hydraulic pressure, so that the counterpressure element is pressed back at the controlled pressure during an embossing operation. The counterpressure element may be included in a holding means to hold the plate securely during the embossing. According to the invention a machine part (1) is then connected to a positive counterpressure element (10) and another machine part (2) is connected to a hydraulic cylinder (4), said hydraulic cylinder (4) having a plunger and a stem (5) connected to a gripping means (6) holding the plate (3) together with the positive counterpressure element (10), such that the plunger during an embossing operation is pressed back at a controlled pressure. The holding means provides a secure holding through the whole press operation. The counterpressure element may also be included in an embossing counterpressure element, in which the counterpressure may be set in order to achieve a pre-embossing or a pressure controlled embossing. The invention may be applied to all types of machines in which counterpressure elements are required. <IMAGE>
SE9802566A 1998-07-17 1998-07-17 Tool with hydraulically controlled counterbar SE518856C2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SE9802566A SE518856C2 (en) 1998-07-17 1998-07-17 Tool with hydraulically controlled counterbar
EP99850120A EP0974410A3 (en) 1998-07-17 1999-07-09 Machine with hydraulically controlled counterpressure holding element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9802566A SE518856C2 (en) 1998-07-17 1998-07-17 Tool with hydraulically controlled counterbar

Publications (3)

Publication Number Publication Date
SE9802566D0 true SE9802566D0 (en) 1998-07-17
SE9802566L SE9802566L (en) 2000-01-18
SE518856C2 SE518856C2 (en) 2002-11-26

Family

ID=20412109

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9802566A SE518856C2 (en) 1998-07-17 1998-07-17 Tool with hydraulically controlled counterbar

Country Status (2)

Country Link
EP (1) EP0974410A3 (en)
SE (1) SE518856C2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0215528D0 (en) * 2002-07-05 2002-08-14 Naylor Ian Multiple task foiling machine
US11292047B2 (en) * 2019-05-03 2022-04-05 Ford Global Technologies Mechanical die pressure monitoring system

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4035005A1 (en) * 1990-11-03 1992-05-07 Erfurt Umformtechnik Gmbh Holding down plate for sheet metal blank during drawing operation - is actuated by hydraulic pistons which are independent of metal forming press movement
JP2722937B2 (en) * 1992-04-07 1998-03-09 トヨタ自動車株式会社 Wrinkle press load measuring device for press machine
JP2812201B2 (en) * 1994-07-15 1998-10-22 トヨタ自動車株式会社 Press equipment
DE59700677D1 (en) * 1996-05-06 1999-12-16 Mueller Weingarten Maschf Process for material flow control when drawing sheet metal parts and device for carrying out the process

Also Published As

Publication number Publication date
EP0974410A3 (en) 2003-04-23
SE9802566L (en) 2000-01-18
EP0974410A2 (en) 2000-01-26
SE518856C2 (en) 2002-11-26

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Legal Events

Date Code Title Description
NUG Patent has lapsed