JPS6422439A - Equipment for forming cup-shaped product provided with inner teeth - Google Patents
Equipment for forming cup-shaped product provided with inner teethInfo
- Publication number
- JPS6422439A JPS6422439A JP17717187A JP17717187A JPS6422439A JP S6422439 A JPS6422439 A JP S6422439A JP 17717187 A JP17717187 A JP 17717187A JP 17717187 A JP17717187 A JP 17717187A JP S6422439 A JPS6422439 A JP S6422439A
- Authority
- JP
- Japan
- Prior art keywords
- point
- till
- energizing force
- press stroke
- termination
- 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.)
- Granted
Links
Landscapes
- Forging (AREA)
Abstract
PURPOSE:To reduce a pressurizing amount of an outer punch by constituting of a 1st spring means generating an energizing force from the initial point till the termination point of a press stroke and a 2nd spring means generating an energizing force from immediately before the termination point till the termination point. CONSTITUTION:A comparatively small energizing force by a 1st cylindrical spring 6a from the initial point of a press stroke till an intermediate point and a comparatively large energizing force by the 1st cylindrical spring 6a and a 2nd cylindrical spring 6b from immediately before the termination point of the press stroke till the termination point act on an inner punch 8. As a result, it is possible to prevent excess thickness from bulging to the corner part of a hole bottom easy to occur near the termination of the press stroke.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17717187A JPH078400B2 (en) | 1987-07-17 | 1987-07-17 | Molding device for cup-shaped products with internal teeth |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17717187A JPH078400B2 (en) | 1987-07-17 | 1987-07-17 | Molding device for cup-shaped products with internal teeth |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6422439A true JPS6422439A (en) | 1989-01-25 |
JPH078400B2 JPH078400B2 (en) | 1995-02-01 |
Family
ID=16026426
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17717187A Expired - Fee Related JPH078400B2 (en) | 1987-07-17 | 1987-07-17 | Molding device for cup-shaped products with internal teeth |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH078400B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102806300A (en) * | 2012-08-13 | 2012-12-05 | 苏州工业园区新凯精密五金有限公司 | Sliding type spring stamping die ejecting mechanism |
-
1987
- 1987-07-17 JP JP17717187A patent/JPH078400B2/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102806300A (en) * | 2012-08-13 | 2012-12-05 | 苏州工业园区新凯精密五金有限公司 | Sliding type spring stamping die ejecting mechanism |
Also Published As
Publication number | Publication date |
---|---|
JPH078400B2 (en) | 1995-02-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |