JPS5516788A - Method of shaping necked part of can utilizing magnetic force - Google Patents
Method of shaping necked part of can utilizing magnetic forceInfo
- Publication number
- JPS5516788A JPS5516788A JP9082378A JP9082378A JPS5516788A JP S5516788 A JPS5516788 A JP S5516788A JP 9082378 A JP9082378 A JP 9082378A JP 9082378 A JP9082378 A JP 9082378A JP S5516788 A JPS5516788 A JP S5516788A
- Authority
- JP
- Japan
- Prior art keywords
- die ring
- magnetic force
- shaping
- command
- comes
- 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
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
- B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
- B21D26/14—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces applying magnetic forces
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Abstract
PURPOSE: To provide the subject method comprising the steps of: causing a magnetic force to act on a can and causing the can to tightly adhere to a die ring thereby to mold the can by a single process without generating buckling or wrinkles.
CONSTITUTION: When the upper end 10 of a can 1 comes to the lower end part 32 of the inward pursed inclined part 31 of a die ring 3, a DC current flows to a coil 4 by the command of detection means. The die ring is magnetized and converted into a magnet and acts to cause the can 1 made of a magnetic metal material to tightly adhere to the die ring 3. When the opening end 10 of the can 1 further advances along the inner peripheral surface and the die ring 3 comes to a position where the necking is completed, the current which has flowed through the coil 4 by the command of detection means which detects the relative position is cut off. The can is separated from the necking device and discharged therefrom.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9082378A JPS5516788A (en) | 1978-07-25 | 1978-07-25 | Method of shaping necked part of can utilizing magnetic force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9082378A JPS5516788A (en) | 1978-07-25 | 1978-07-25 | Method of shaping necked part of can utilizing magnetic force |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5516788A true JPS5516788A (en) | 1980-02-05 |
Family
ID=14009302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9082378A Pending JPS5516788A (en) | 1978-07-25 | 1978-07-25 | Method of shaping necked part of can utilizing magnetic force |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5516788A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63103060U (en) * | 1986-12-25 | 1988-07-04 |
-
1978
- 1978-07-25 JP JP9082378A patent/JPS5516788A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63103060U (en) * | 1986-12-25 | 1988-07-04 | ||
| JPH0232943Y2 (en) * | 1986-12-25 | 1990-09-05 |
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