JPS56128630A - Forming method for bowl-shaped can - Google Patents
Forming method for bowl-shaped canInfo
- Publication number
- JPS56128630A JPS56128630A JP3177380A JP3177380A JPS56128630A JP S56128630 A JPS56128630 A JP S56128630A JP 3177380 A JP3177380 A JP 3177380A JP 3177380 A JP3177380 A JP 3177380A JP S56128630 A JPS56128630 A JP S56128630A
- Authority
- JP
- Japan
- Prior art keywords
- bowl
- shaped
- punch
- die center
- draw
- 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.)
- Pending
Links
Abstract
PURPOSE: To decrease the thickness of a can blank material and form a bowl-shaped can inexpensively by forming the tapered face of the bowl-shaped can by expanding.
CONSTITUTION: A die center 1 has a sloped outside circumferential surface 3 conforming to the side wall part of a can to be formed, and a draw ring 4 which encloses the outside circumference of this die center 1 and is moved downward is installed. Also, a draw punch 6 having a sloped inside circumferential surface conforming to the surface 3 of the die center 1 grasps the edge part 10 of a can blank material 9 drawn to a bottomed cylindrical vessel having no tapers, between the lower side face 7 of said punch and the top surface of the ring 4. Thereupon, the draw punch 6 is lowered by the downward movement of a punch center 11 and the circumferential side face 12 of the material 9 is grasped and press-contacted between the surface 3 of the die center 1 and the sloped inside circumferential surface of the draw punch 6, whereby the required taper surface of the bowl-shaped can is formed by expanding.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3177380A JPS56128630A (en) | 1980-03-13 | 1980-03-13 | Forming method for bowl-shaped can |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3177380A JPS56128630A (en) | 1980-03-13 | 1980-03-13 | Forming method for bowl-shaped can |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56128630A true JPS56128630A (en) | 1981-10-08 |
Family
ID=12340363
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3177380A Pending JPS56128630A (en) | 1980-03-13 | 1980-03-13 | Forming method for bowl-shaped can |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56128630A (en) |
-
1980
- 1980-03-13 JP JP3177380A patent/JPS56128630A/en active Pending
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