JPS5548423A - Bending molding method of metallic plate and its device - Google Patents
Bending molding method of metallic plate and its deviceInfo
- Publication number
- JPS5548423A JPS5548423A JP12001978A JP12001978A JPS5548423A JP S5548423 A JPS5548423 A JP S5548423A JP 12001978 A JP12001978 A JP 12001978A JP 12001978 A JP12001978 A JP 12001978A JP S5548423 A JPS5548423 A JP S5548423A
- Authority
- JP
- Japan
- Prior art keywords
- dies
- punches
- pair
- holders
- thickness
- 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
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
PURPOSE: To prevent the surface of a product from getting rough, by carrying out bending working of band metallic material with U-section, pressing it in the direction of thickness by use of one pair of opposed form punches and dies.
CONSTITUTION: On the material setting part 21a which has been finished to a mirror surface, of the straight dies 21 is placed the material W in a free state. The upper dies 10 are lowered by operating a proper lifting means, and the lower top part of the form punches/11 is made to contact the upper surface of the material. When the upper dies approach the lower dies 12, one pair of dies holders 19, 19 are turned in such a way as they are opened downwards centering around the shaft 20, and also the straight dies are slided along the external circumferential face of the punches by the distance corresponding to the difference of turning displacement of the dies holders and length of the belt 22, and the material is bent by pressure. Accordingly, since the mateial dilates and deforms the whole surface, being affected by the load in the direction of thickness, it is molded with a good finished surface without causing wrinkles and flows.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12001978A JPS5548423A (en) | 1978-09-29 | 1978-09-29 | Bending molding method of metallic plate and its device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12001978A JPS5548423A (en) | 1978-09-29 | 1978-09-29 | Bending molding method of metallic plate and its device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5548423A true JPS5548423A (en) | 1980-04-07 |
JPS6213091B2 JPS6213091B2 (en) | 1987-03-24 |
Family
ID=14775884
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12001978A Granted JPS5548423A (en) | 1978-09-29 | 1978-09-29 | Bending molding method of metallic plate and its device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5548423A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59169629A (en) * | 1983-03-16 | 1984-09-25 | Hitachi Ltd | Method and apparatus for bending shape |
JPS62188138A (en) * | 1986-02-14 | 1987-08-17 | Toshiba Corp | Color picture tube device |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5223626A (en) * | 1975-08-18 | 1977-02-22 | Matsushita Electric Ind Co Ltd | High temperature battery |
JPS5226507A (en) * | 1975-08-20 | 1977-02-28 | Kraftco Corp | Raw material fatty acid of dimer acid |
-
1978
- 1978-09-29 JP JP12001978A patent/JPS5548423A/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5223626A (en) * | 1975-08-18 | 1977-02-22 | Matsushita Electric Ind Co Ltd | High temperature battery |
JPS5226507A (en) * | 1975-08-20 | 1977-02-28 | Kraftco Corp | Raw material fatty acid of dimer acid |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59169629A (en) * | 1983-03-16 | 1984-09-25 | Hitachi Ltd | Method and apparatus for bending shape |
JPH0417731B2 (en) * | 1983-03-16 | 1992-03-26 | Hitachi Ltd | |
JPS62188138A (en) * | 1986-02-14 | 1987-08-17 | Toshiba Corp | Color picture tube device |
US4728858A (en) * | 1986-02-14 | 1988-03-01 | Kabushiki Kaisha Toshiba | Color cathode ray tube apparatus |
Also Published As
Publication number | Publication date |
---|---|
JPS6213091B2 (en) | 1987-03-24 |
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