SE9802566D0 - Tool with hydraulically controlled counterbar - Google Patents
Tool with hydraulically controlled counterbarInfo
- 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
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>
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)
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)
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 |
-
1998
- 1998-07-17 SE SE9802566A patent/SE518856C2/en not_active IP Right Cessation
-
1999
- 1999-07-09 EP EP99850120A patent/EP0974410A3/en not_active Withdrawn
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 |