JPS5783424A - Heat-softening method of thermoplastic resin sheet - Google Patents

Heat-softening method of thermoplastic resin sheet

Info

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
Application number
JP15912380A
Other languages
Japanese (ja)
Other versions
JPH0137255B2 (en
Inventor
Kiyoto Dezuki
Tadataka Kajiwara
Kenichi Ito
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.)
Meiwa Corp
Original Assignee
Meiwa 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 Meiwa Corp filed Critical Meiwa Corp
Priority to JP15912380A priority Critical patent/JPS5783424A/en
Publication of JPS5783424A publication Critical patent/JPS5783424A/en
Publication of JPH0137255B2 publication Critical patent/JPH0137255B2/ja
Granted legal-status Critical Current

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
JP15912380A 1980-11-12 1980-11-12 Heat-softening method of thermoplastic resin sheet Granted JPS5783424A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (6)

* Cited by examiner, † Cited by third party
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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