JPS5487669A - Production of plate fin - Google Patents

Production of plate fin

Info

Publication number
JPS5487669A
JPS5487669A JP15601477A JP15601477A JPS5487669A JP S5487669 A JPS5487669 A JP S5487669A JP 15601477 A JP15601477 A JP 15601477A JP 15601477 A JP15601477 A JP 15601477A JP S5487669 A JPS5487669 A JP S5487669A
Authority
JP
Japan
Prior art keywords
plate
mold
fin
punch
moving
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.)
Granted
Application number
JP15601477A
Other languages
Japanese (ja)
Other versions
JPS5756415B2 (en
Inventor
Kazuho Goto
Akira Yamamoto
Kazuo Harada
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.)
Hitachi Zosen Corp
Original Assignee
Hitachi Zosen Corp
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 Hitachi Zosen Corp filed Critical Hitachi Zosen Corp
Priority to JP15601477A priority Critical patent/JPS5487669A/en
Publication of JPS5487669A publication Critical patent/JPS5487669A/en
Publication of JPS5756415B2 publication Critical patent/JPS5756415B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Shaping Of Tube Ends By Bending Or Straightening (AREA)

Abstract

PURPOSE: Plate hole is curvedly bent at peripheral portion, in two steps, to form a plate fin having a cylindrical portion and a fin portion. A plurality of the plate fin inserted in multistage facilitates equipitched fin arrangement.
CONSTITUTION: A first 6, a second 7 and a third 8 lower molds are arranged so that upper level of each mold are aligned in a straight line, on which a plate 11 to be fabricated is placed. A punch 1 is lowered A1 to make a hole on the plate 11 by shearing with small portion 3 of the punch 1 and the mold 6. The mold 6 is moved down a1 and the punch 1 is further lowered a2 to form curved bend 12A on the plate 11 by using a first expanded portion 4 and the mold 7. The mold 7 is then moved down a2 and the punch 1 is further lowered a2 to form a cylindrical portion 12B and a fin 12C on the plate 11 by using a second expanded portion 4 and the mold 8. At the same time, the curved bend 12A is escaped into an annular recess 9 to become parallel to the fin portion 12. The molded plate fin 12 is removed by moving the punch 1 upward, moving the mold 8A, 8B to the left and right, respectively.
COPYRIGHT: (C)1979,JPO&Japio
JP15601477A 1977-12-23 1977-12-23 Production of plate fin Granted JPS5487669A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15601477A JPS5487669A (en) 1977-12-23 1977-12-23 Production of plate fin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15601477A JPS5487669A (en) 1977-12-23 1977-12-23 Production of plate fin

Publications (2)

Publication Number Publication Date
JPS5487669A true JPS5487669A (en) 1979-07-12
JPS5756415B2 JPS5756415B2 (en) 1982-11-30

Family

ID=15618423

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15601477A Granted JPS5487669A (en) 1977-12-23 1977-12-23 Production of plate fin

Country Status (1)

Country Link
JP (1) JPS5487669A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08153968A (en) * 1994-11-29 1996-06-11 Kisung Ind Co Ltd Manufacture of bent ring of one-sided flexible printed-wiring board
CN105855384A (en) * 2016-04-07 2016-08-17 无锡海特精密模具有限公司 Edge turning structure for air conditioner fin die

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08153968A (en) * 1994-11-29 1996-06-11 Kisung Ind Co Ltd Manufacture of bent ring of one-sided flexible printed-wiring board
CN105855384A (en) * 2016-04-07 2016-08-17 无锡海特精密模具有限公司 Edge turning structure for air conditioner fin die

Also Published As

Publication number Publication date
JPS5756415B2 (en) 1982-11-30

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