JPS5783424A - Heat-softening method of thermoplastic resin sheet - Google Patents
Heat-softening method of thermoplastic resin sheetInfo
- Publication number
- JPS5783424A JPS5783424A JP15912380A JP15912380A JPS5783424A JP S5783424 A JPS5783424 A JP S5783424A JP 15912380 A JP15912380 A JP 15912380A JP 15912380 A JP15912380 A JP 15912380A JP S5783424 A JPS5783424 A JP S5783424A
- Authority
- JP
- Japan
- Prior art keywords
- resin sheet
- heating
- face
- heat
- contacting
- 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
Links
Landscapes
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Abstract
PURPOSE: To heat-treat the resin sheet evenly and rapidly, by opening plural vacuum suction holes at the resin sheet contact-heating face of the heating plate and contacting the resin sheet wholely to the face of the heating plate by putting the vacuum suction hole in aspirating state during contact-heating process.
CONSTITUTION: Heat-softening treatment is performed by contacting the back face of the resin sheet 1 to the upper heating face 31 of the heating plate 3 for the predetermined time. The resin sheet 1 is totally contacted to each part of the heating face 31 of the heating plate 3 by vacuum suction force due to putting each vacuum suction hole 33 which is opened at the heating face 31 in attracting state during contact-heating process of the resin sheet. Suction contacting force overcomes wrinkle generating force due to internal strain of the resin sheet in heating and allover contacting state of the resin sheet 1 to the heating plate face is favorably maintained. Thus uneven heating due to wrinkle generation is avoided, the resin sheet is heat-softened wholely, evenly and rapidly.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15912380A JPS5783424A (en) | 1980-11-12 | 1980-11-12 | Heat-softening method of thermoplastic resin sheet |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15912380A JPS5783424A (en) | 1980-11-12 | 1980-11-12 | Heat-softening method of thermoplastic resin sheet |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5783424A true JPS5783424A (en) | 1982-05-25 |
JPH0137255B2 JPH0137255B2 (en) | 1989-08-04 |
Family
ID=15686731
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15912380A Granted JPS5783424A (en) | 1980-11-12 | 1980-11-12 | Heat-softening method of thermoplastic resin sheet |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5783424A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0218027A (en) * | 1988-07-06 | 1990-01-22 | Iwaguro Seisakusho:Kk | Manufacturing method of packaging container |
JP2000127239A (en) * | 1998-10-29 | 2000-05-09 | Sumitomo Heavy Ind Ltd | Method and device for forming plastic sheet |
JP2002103438A (en) * | 2000-09-29 | 2002-04-09 | Asano Laboratories Co Ltd | Method and apparatus for thermoforming |
CN102371781A (en) * | 2010-07-16 | 2012-03-14 | 精工爱普生株式会社 | Recording device and method for controlling recording device |
WO2019138862A1 (en) * | 2018-01-12 | 2019-07-18 | 東レ株式会社 | Heating apparatus for thermoplastic-resin sheet and method for manufacturing thermoplastic-resin molded body |
-
1980
- 1980-11-12 JP JP15912380A patent/JPS5783424A/en active Granted
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0218027A (en) * | 1988-07-06 | 1990-01-22 | Iwaguro Seisakusho:Kk | Manufacturing method of packaging container |
JP2000127239A (en) * | 1998-10-29 | 2000-05-09 | Sumitomo Heavy Ind Ltd | Method and device for forming plastic sheet |
JP2002103438A (en) * | 2000-09-29 | 2002-04-09 | Asano Laboratories Co Ltd | Method and apparatus for thermoforming |
CN102371781A (en) * | 2010-07-16 | 2012-03-14 | 精工爱普生株式会社 | Recording device and method for controlling recording device |
WO2019138862A1 (en) * | 2018-01-12 | 2019-07-18 | 東レ株式会社 | Heating apparatus for thermoplastic-resin sheet and method for manufacturing thermoplastic-resin molded body |
US11407148B2 (en) | 2018-01-12 | 2022-08-09 | Toray Industries, Inc. | Heating apparatus for thermoplastic resin sheet and method of manufacturing thermoplastic resin-molded body |
Also Published As
Publication number | Publication date |
---|---|
JPH0137255B2 (en) | 1989-08-04 |
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