JPS5772735A - Method and apparatus for seaming of seam part of drum - Google Patents

Method and apparatus for seaming of seam part of drum

Info

Publication number
JPS5772735A
JPS5772735A JP14928180A JP14928180A JPS5772735A JP S5772735 A JPS5772735 A JP S5772735A JP 14928180 A JP14928180 A JP 14928180A JP 14928180 A JP14928180 A JP 14928180A JP S5772735 A JPS5772735 A JP S5772735A
Authority
JP
Japan
Prior art keywords
flange
forming
bottom plate
seamed
upper die
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
JP14928180A
Other languages
Japanese (ja)
Inventor
Mitsuo Sasai
Shinji Tomikawa
Kazuo Kajiwara
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.)
Nippon Steel Drum Co Ltd
Original Assignee
Nittetsu Steel Drum Co 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 Nittetsu Steel Drum Co Ltd filed Critical Nittetsu Steel Drum Co Ltd
Priority to JP14928180A priority Critical patent/JPS5772735A/en
Priority to US06/233,285 priority patent/US4392295A/en
Publication of JPS5772735A publication Critical patent/JPS5772735A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To reduce time for seaming and simplify the apparatus by applying two- step benging to a flange at two, large and small, radii of curvature by forming grooves of upper and lower dies and making rolling in and tightening by pressing with one upper die.
CONSTITUTION: A body flange 12 and top and bottom plate flanges 22 are superposed and seamed by the first and second roll-shaped upper dies 41, 51 having a lower die 32 that has a cylindrical forming face and forming grooves 42, 52 that open to the forming face 33 of the lower die 32 and extend along circumferential direction. The top and bottom plate flange 22 is bent by the first upper die 41 until its tip reaches the body flange 12. Next, it is bent about 90° to circular arc form by the second upper die 52, and rolled at a radius of curvature smaller than that of bending. Such bending is repeated, and the body flange 12 and top and bottom plate flange are seamed so that they are superposed. Then, the seamed part is pressed to the bottom of the forming groove 52 of the second upper die which is parallel to the forming face 33 of the lower die.
COPYRIGHT: (C)1982,JPO&Japio
JP14928180A 1980-10-27 1980-10-27 Method and apparatus for seaming of seam part of drum Pending JPS5772735A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP14928180A JPS5772735A (en) 1980-10-27 1980-10-27 Method and apparatus for seaming of seam part of drum
US06/233,285 US4392295A (en) 1980-10-27 1981-02-10 Method and apparatus for forming drum seam

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14928180A JPS5772735A (en) 1980-10-27 1980-10-27 Method and apparatus for seaming of seam part of drum

Publications (1)

Publication Number Publication Date
JPS5772735A true JPS5772735A (en) 1982-05-07

Family

ID=15471769

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14928180A Pending JPS5772735A (en) 1980-10-27 1980-10-27 Method and apparatus for seaming of seam part of drum

Country Status (1)

Country Link
JP (1) JPS5772735A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5143504A (en) * 1988-09-21 1992-09-01 Koninklijke Emballage Industrie Van Leer B.V. Method of manufacturing a seam connection
US5320468A (en) * 1990-07-13 1994-06-14 Kramer Antonio H Tin can manufacturing process

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5143504A (en) * 1988-09-21 1992-09-01 Koninklijke Emballage Industrie Van Leer B.V. Method of manufacturing a seam connection
US5320468A (en) * 1990-07-13 1994-06-14 Kramer Antonio H Tin can manufacturing process

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