JPS57190740A - Manufacture of can end plate - Google Patents
Manufacture of can end plateInfo
- Publication number
- JPS57190740A JPS57190740A JP7339781A JP7339781A JPS57190740A JP S57190740 A JPS57190740 A JP S57190740A JP 7339781 A JP7339781 A JP 7339781A JP 7339781 A JP7339781 A JP 7339781A JP S57190740 A JPS57190740 A JP S57190740A
- Authority
- JP
- Japan
- Prior art keywords
- projection
- forming
- end plate
- opening
- shaped
- 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
- B21D51/00—Making hollow objects
- B21D51/16—Making hollow objects characterised by the use of the objects
- B21D51/38—Making inlet or outlet arrangements of cans, tins, baths, bottles, or other vessels; Making can ends; Making closures
- B21D51/44—Making closures, e.g. caps
- B21D51/50—Making screw caps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Abstract
PURPOSE:To eliminate necessity of an inner stopper and to make opening of a can possible without using a can opening tool by forming a small columnar projection on the end plate member of the can, and forming a threaded part on the projection, then forming a loop-shaped weakened part that becomes a port for taking out the content. CONSTITUTION:By making repeated drawing works on an end plate member 1 of a can made of a flat metallic sheet, a small columnar projection 10, a tapered part 11 and a folded part 13 are formed finally. Then, roll dies are abutted inside and outside of the projection 10 and a threaded part 23. After forming the threaded part 23, a mortar-shaped female die 32 having a circular concavity 31 is inserted into the projection 10. A cylindrical male die 34 is abutted vertically fro outside of the end face of the projection 10 to form a reinforced part 35. A loop-shaped weakened part 41 is formed at the same time. The weakened part 41 can be broken and opened by pressing with a finger tip etc. to form an opening for taking out the content.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7339781A JPS57190740A (en) | 1981-05-18 | 1981-05-18 | Manufacture of can end plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7339781A JPS57190740A (en) | 1981-05-18 | 1981-05-18 | Manufacture of can end plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57190740A true JPS57190740A (en) | 1982-11-24 |
Family
ID=13517019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7339781A Pending JPS57190740A (en) | 1981-05-18 | 1981-05-18 | Manufacture of can end plate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57190740A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62200767U (en) * | 1986-06-13 | 1987-12-21 | ||
| JPH05229545A (en) * | 1991-04-17 | 1993-09-07 | E Nussbaum Ag | Method and device to manufacture aluminum container with screw thread and said aluminum container |
| JP2002066674A (en) * | 2000-08-21 | 2002-03-05 | Takeuchi Press Ind Co Ltd | Manufacturing method for aluminum threaded container |
-
1981
- 1981-05-18 JP JP7339781A patent/JPS57190740A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62200767U (en) * | 1986-06-13 | 1987-12-21 | ||
| JPH05229545A (en) * | 1991-04-17 | 1993-09-07 | E Nussbaum Ag | Method and device to manufacture aluminum container with screw thread and said aluminum container |
| JP2002066674A (en) * | 2000-08-21 | 2002-03-05 | Takeuchi Press Ind Co Ltd | Manufacturing method for aluminum threaded container |
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