JPS58126117A - Blister forming drum - Google Patents

Blister forming drum

Info

Publication number
JPS58126117A
JPS58126117A JP971382A JP971382A JPS58126117A JP S58126117 A JPS58126117 A JP S58126117A JP 971382 A JP971382 A JP 971382A JP 971382 A JP971382 A JP 971382A JP S58126117 A JPS58126117 A JP S58126117A
Authority
JP
Japan
Prior art keywords
drum
peripheral
sheet
heated
thermoplastic sheet
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
JP971382A
Other languages
Japanese (ja)
Other versions
JPS6223650B2 (en
Inventor
Kosaburo Matsuzawa
Original Assignee
Kosaburo Matsuzawa
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 Kosaburo Matsuzawa filed Critical Kosaburo Matsuzawa
Priority to JP57009713A priority Critical patent/JPS6223650B2/ja
Publication of JPS58126117A publication Critical patent/JPS58126117A/en
Publication of JPS6223650B2 publication Critical patent/JPS6223650B2/ja
Expired legal-status Critical Current

Links

Abstract

PURPOSE: To form uniformly the top thickness of blister without thickness dispersion by a method wherein a thermoplastic sheet is sucked through sheet inlet ports and heated when the sheet is stuck to the peripheral surface of a drum body.
CONSTITUTION: A drum body 31 is made from material having a large heat conductivity and cooled by the water circulated in the drum. Multiple concave pockets 34 are arranged on the peripheral wall surface 31b of the drum body 31 in the circumferential and axial direction. Material of small heat conductivity forms the peripheral wall and bottom on each concave pocket 34, which has a slit inlet port. The thermoplastic sheet is heated as it is stuck to the peripheral wall surface 31b of the drum body 31 through the inlet ports. The thermoplastic sheet is stretched, heated only at points where blisters are formed and the remaining section continues to be cooled. Thus, blisters are formed uniformly without thickness dispersion.
COPYRIGHT: (C)1983,JPO&Japio
JP57009713A 1982-01-25 1982-01-25 Expired JPS6223650B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57009713A JPS6223650B2 (en) 1982-01-25 1982-01-25

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57009713A JPS6223650B2 (en) 1982-01-25 1982-01-25

Publications (2)

Publication Number Publication Date
JPS58126117A true JPS58126117A (en) 1983-07-27
JPS6223650B2 JPS6223650B2 (en) 1987-05-25

Family

ID=11727892

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57009713A Expired JPS6223650B2 (en) 1982-01-25 1982-01-25

Country Status (1)

Country Link
JP (1) JPS6223650B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0359242A2 (en) * 1988-09-14 1990-03-21 Idemitsu Petrochemical Co. Ltd. Method for forming blisters
JPH03130126A (en) * 1989-07-18 1991-06-03 Idemitsu Petrochem Co Ltd Method for forming thermoplastic sheet
US5192484A (en) * 1988-09-14 1993-03-09 Matsuzawa Co., Ltd. Method of forming blisters
US5366685A (en) * 1989-07-18 1994-11-22 Idemitsu Petrochemical Co., Ltd. Process of molding thermoplastic sheet by plug assist vacuum forming

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5639266A (en) * 1979-09-06 1981-04-14 Nippon Carbide Kogyo Kk Making method and form for structure

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5639266A (en) * 1979-09-06 1981-04-14 Nippon Carbide Kogyo Kk Making method and form for structure

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0359242A2 (en) * 1988-09-14 1990-03-21 Idemitsu Petrochemical Co. Ltd. Method for forming blisters
EP0359242A3 (en) * 1988-09-14 1991-08-14 Idemitsu Petrochemical Co. Ltd. Method for forming blisters
US5192484A (en) * 1988-09-14 1993-03-09 Matsuzawa Co., Ltd. Method of forming blisters
US5312239A (en) * 1988-09-14 1994-05-17 Matsuzawa Co., Ltd. Device for forming blisters
US5492465A (en) * 1988-09-14 1996-02-20 Matsuzawa Co., Ltd. Device for forming blisters
JPH03130126A (en) * 1989-07-18 1991-06-03 Idemitsu Petrochem Co Ltd Method for forming thermoplastic sheet
US5366685A (en) * 1989-07-18 1994-11-22 Idemitsu Petrochemical Co., Ltd. Process of molding thermoplastic sheet by plug assist vacuum forming

Also Published As

Publication number Publication date
JPS6223650B2 (en) 1987-05-25

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