JPS57190740A - Manufacture of can end plate - Google Patents

Manufacture of can end plate

Info

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
Application number
JP7339781A
Other languages
Japanese (ja)
Inventor
Fumihiko Yamamoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SAKURA KANKOUGIYOU KK
SAKURAKAN KOGYO KK
Original Assignee
SAKURA KANKOUGIYOU KK
SAKURAKAN KOGYO KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SAKURA KANKOUGIYOU KK, SAKURAKAN KOGYO KK filed Critical SAKURA KANKOUGIYOU KK
Priority to JP7339781A priority Critical patent/JPS57190740A/en
Publication of JPS57190740A publication Critical patent/JPS57190740A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D51/00Making hollow objects
    • B21D51/16Making hollow objects characterised by the use of the objects
    • B21D51/38Making inlet or outlet arrangements of cans, tins, baths, bottles, or other vessels; Making can ends; Making closures
    • B21D51/44Making closures, e.g. caps
    • B21D51/50Making 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.
JP7339781A 1981-05-18 1981-05-18 Manufacture of can end plate Pending JPS57190740A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (3)

* Cited by examiner, † Cited by third party
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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