JPS56128630A - Forming method for bowl-shaped can - Google Patents

Forming method for bowl-shaped can

Info

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
Application number
JP3177380A
Other languages
Japanese (ja)
Inventor
Masayuki Yabuta
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.)
Toyo Seikan Group Holdings Ltd
Original Assignee
Toyo Seikan Kaisha Ltd
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 Toyo Seikan Kaisha Ltd filed Critical Toyo Seikan Kaisha Ltd
Priority to JP3177380A priority Critical patent/JPS56128630A/en
Publication of JPS56128630A publication Critical patent/JPS56128630A/en
Pending legal-status Critical Current

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
JP3177380A 1980-03-13 1980-03-13 Forming method for bowl-shaped can Pending JPS56128630A (en)

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)

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