JPS57167211A - Manufacture of synthetic resin molding - Google Patents

Manufacture of synthetic resin molding

Info

Publication number
JPS57167211A
JPS57167211A JP5275581A JP5275581A JPS57167211A JP S57167211 A JPS57167211 A JP S57167211A JP 5275581 A JP5275581 A JP 5275581A JP 5275581 A JP5275581 A JP 5275581A JP S57167211 A JPS57167211 A JP S57167211A
Authority
JP
Japan
Prior art keywords
synthetic resin
fluid
plate
molding
mold
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
JP5275581A
Other languages
Japanese (ja)
Inventor
Fumiaki Baba
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP5275581A priority Critical patent/JPS57167211A/en
Publication of JPS57167211A publication Critical patent/JPS57167211A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/26—Component parts, details or accessories; Auxiliary operations
    • B29C51/46—Measuring, controlling or regulating

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

PURPOSE:To manufacture a synthetic resin molding having stable guality by using a system in which a light radiator and a light detector are provided for controlling the pressure of fluid in a molding method deforming a synthetic resin plate softened by heating following a mold by means of a fluid pressure. CONSTITUTION:In a molding machine provided with a compression tank 11, compression box 10, a vacuum tank 7, and a mold 3, a light radiator 15 and a light detector 16 are fixed to the mold 3. When deforming a synthetic resin plate 16 softened by heating by a fluid pressure in the molding mechine, an output corresponding to the deformation of the plate 1 is generated in the light detector 16 and then put in a fluid controller 17. Thus, when a fluid controller 9 or 14 is operated according to a preset control mode, the amount of a fluid corresponding to the deformation of the plate 1 is stably acted on the plate 1.
JP5275581A 1981-04-08 1981-04-08 Manufacture of synthetic resin molding Pending JPS57167211A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5275581A JPS57167211A (en) 1981-04-08 1981-04-08 Manufacture of synthetic resin molding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5275581A JPS57167211A (en) 1981-04-08 1981-04-08 Manufacture of synthetic resin molding

Publications (1)

Publication Number Publication Date
JPS57167211A true JPS57167211A (en) 1982-10-15

Family

ID=12923700

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5275581A Pending JPS57167211A (en) 1981-04-08 1981-04-08 Manufacture of synthetic resin molding

Country Status (1)

Country Link
JP (1) JPS57167211A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2610241A1 (en) * 1987-02-02 1988-08-05 Gecib Method for the forming of skylight domes
WO2004062889A1 (en) * 2003-01-10 2004-07-29 Cannon S.P.A. Twin-sheet thermoforming of plastic fuel tanks
EP2206595A1 (en) * 2008-12-26 2010-07-14 Yamaha Hatsudoki Kabushiki Kaisha Vacuum forming machine and method of making vacuum formed product

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2610241A1 (en) * 1987-02-02 1988-08-05 Gecib Method for the forming of skylight domes
WO2004062889A1 (en) * 2003-01-10 2004-07-29 Cannon S.P.A. Twin-sheet thermoforming of plastic fuel tanks
US7670133B2 (en) 2003-01-10 2010-03-02 Canon S.p.A. Twin-sheet thermoforming of plastic fuel tanks
EP2206595A1 (en) * 2008-12-26 2010-07-14 Yamaha Hatsudoki Kabushiki Kaisha Vacuum forming machine and method of making vacuum formed product
US8591678B2 (en) 2008-12-26 2013-11-26 Yamaha Hatsudoki Kabushiki Kaisha Vacuum forming machine and method of making vacuum formed product

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