JPS57167211A - Manufacture of synthetic resin molding - Google Patents
Manufacture of synthetic resin moldingInfo
- 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
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.
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)
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 |
-
1981
- 1981-04-08 JP JP5275581A patent/JPS57167211A/en active Pending
Cited By (5)
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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