JPS5692036A - Injection molder - Google Patents

Injection molder

Info

Publication number
JPS5692036A
JPS5692036A JP16927479A JP16927479A JPS5692036A JP S5692036 A JPS5692036 A JP S5692036A JP 16927479 A JP16927479 A JP 16927479A JP 16927479 A JP16927479 A JP 16927479A JP S5692036 A JPS5692036 A JP S5692036A
Authority
JP
Japan
Prior art keywords
pressure
filling
control process
deviation
controller
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
JP16927479A
Other languages
Japanese (ja)
Inventor
Masao Takagi
Masamichi Takeshita
Hisashi Nichibe
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP16927479A priority Critical patent/JPS5692036A/en
Publication of JPS5692036A publication Critical patent/JPS5692036A/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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/76—Measuring, controlling or regulating

Abstract

PURPOSE:To obtain a molding having a stable optical properties and a good shape accuracy by controlling a filling process and the pressure of molten resin in a pressure-keeping and cooling process according to the state of the molten resin by provid ing a detecting part, an arithmetic unit, and a controller. CONSTITUTION:In an injection speed control process, the speed pattern of an injection screw 7 is controlled by a controller 17, and a filling pressure control process is started by a signal of the end of the injection speed control process. The inside pressure of a mold is controlled in such a way that it follows the filling pressure rise ingredient previously set in a filling pressure setter 15. If a deviation is produced from the set in a filling pressure setter 15. If a deviation is produced from the set value, a correct signal according to the deviation is output from the controller 17 and a filler pressure control is made through a power amplifier 13a and an electric oil-pressure control valve 19a. At a time when the inside pressure of mold reaches a given filling pressure, it moves to the next kept pressure control process, and afterwards, the pressure and flow rate of working oil supplied to the injection cylinder 8 are regulated in such a way that the lowering ingredient of kept pressure set in the kept pressure setter 16 is followed.
JP16927479A 1979-12-27 1979-12-27 Injection molder Pending JPS5692036A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16927479A JPS5692036A (en) 1979-12-27 1979-12-27 Injection molder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16927479A JPS5692036A (en) 1979-12-27 1979-12-27 Injection molder

Publications (1)

Publication Number Publication Date
JPS5692036A true JPS5692036A (en) 1981-07-25

Family

ID=15883462

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16927479A Pending JPS5692036A (en) 1979-12-27 1979-12-27 Injection molder

Country Status (1)

Country Link
JP (1) JPS5692036A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60242028A (en) * 1984-04-11 1985-12-02 Mitsubishi Heavy Ind Ltd Injection compression molding method
JPS62199418A (en) * 1986-02-27 1987-09-03 Toshiba Mach Co Ltd Process for controlling injection molding machine
US8545610B2 (en) 2010-07-30 2013-10-01 Aisan Kogyo Kabushiki Kaisha Fuel vapor treating apparatuses having a high thermal conductive honeycomb core

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5055665A (en) * 1973-09-18 1975-05-15
JPS5214658A (en) * 1975-05-29 1977-02-03 Hisashi Kojima Method and device for controlling internal pressure in injection molding machine mold
JPS5464557A (en) * 1977-11-01 1979-05-24 Otsuka Hidemitsu Injection molding method with mechanism using increased cavity internal pressure

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5055665A (en) * 1973-09-18 1975-05-15
JPS5214658A (en) * 1975-05-29 1977-02-03 Hisashi Kojima Method and device for controlling internal pressure in injection molding machine mold
JPS5464557A (en) * 1977-11-01 1979-05-24 Otsuka Hidemitsu Injection molding method with mechanism using increased cavity internal pressure

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60242028A (en) * 1984-04-11 1985-12-02 Mitsubishi Heavy Ind Ltd Injection compression molding method
JPH0438569B2 (en) * 1984-04-11 1992-06-24
JPS62199418A (en) * 1986-02-27 1987-09-03 Toshiba Mach Co Ltd Process for controlling injection molding machine
US8545610B2 (en) 2010-07-30 2013-10-01 Aisan Kogyo Kabushiki Kaisha Fuel vapor treating apparatuses having a high thermal conductive honeycomb core

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