JPS5577542A - Large-sized injection molding machine - Google Patents

Large-sized injection molding machine

Info

Publication number
JPS5577542A
JPS5577542A JP14966878A JP14966878A JPS5577542A JP S5577542 A JPS5577542 A JP S5577542A JP 14966878 A JP14966878 A JP 14966878A JP 14966878 A JP14966878 A JP 14966878A JP S5577542 A JPS5577542 A JP S5577542A
Authority
JP
Japan
Prior art keywords
pressure
accumulator
resin
mold
hydraulic pressure
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
JP14966878A
Other languages
Japanese (ja)
Inventor
Akio Yasuike
Toru Tsuchiya
Koji Nagahara
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.)
Asahi Dow Ltd
Asahi Chemical Industry Co Ltd
Original Assignee
Asahi Dow Ltd
Asahi Chemical Industry Co 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 Asahi Dow Ltd, Asahi Chemical Industry Co Ltd filed Critical Asahi Dow Ltd
Priority to JP14966878A priority Critical patent/JPS5577542A/en
Publication of JPS5577542A publication Critical patent/JPS5577542A/en
Pending legal-status Critical Current

Links

Landscapes

  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

PURPOSE: To provide an injection molding machine with a preplasticizing means which is low in energy consumption and easy to operate and which rarely gets troubles, the molding machine being operated by using a hydraulic pressure which is increased by applying an air pressure to the oil, whereby a hydraulic pump can substantially be omitted.
CONSTITUTION: A resin is plasticized in a pre-plasticizing means 2, which is operated by an electric motor 1, and transferred under pressure into a resin accumulator 5. As a result, an operation oil in that portion of the interior of a hydraulic cylinder 7 which is opposite to a piston rod with respect to the piston therein is compressed into a hydraulic pressure accumulator 8. A hydraulic pressure is thus stored in the accumulator 8. The resin in the accumulator 5 is automatically injected into a mold 17 when a nozzle valve 9 is opened. Namely, the injection of resin is effected by a pressure generated by the pre-plasticizing means 2 without using a hydraulic pump. All of hydraulic pressure change-over valves used for clamping, opening and closing the mold consist of check valves 27, 28, 30. The mold is opened and closed by a hydraulic pressure increased to a low level by a large-diameter air cylinder 25. The mold is clamped by a small amount of an operation oil the pressure of which is increased to a high level.
COPYRIGHT: (C)1980,JPO&Japio
JP14966878A 1978-12-05 1978-12-05 Large-sized injection molding machine Pending JPS5577542A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14966878A JPS5577542A (en) 1978-12-05 1978-12-05 Large-sized injection molding machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14966878A JPS5577542A (en) 1978-12-05 1978-12-05 Large-sized injection molding machine

Publications (1)

Publication Number Publication Date
JPS5577542A true JPS5577542A (en) 1980-06-11

Family

ID=15480219

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14966878A Pending JPS5577542A (en) 1978-12-05 1978-12-05 Large-sized injection molding machine

Country Status (1)

Country Link
JP (1) JPS5577542A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60162620A (en) * 1984-02-06 1985-08-24 Inoue Japax Res Inc Molding apparatus
KR100298312B1 (en) * 1998-12-24 2001-10-26 백대현 Manufacturing method of wood substitute material using mixed waste synthetic resin

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60162620A (en) * 1984-02-06 1985-08-24 Inoue Japax Res Inc Molding apparatus
JPH0149092B2 (en) * 1984-02-06 1989-10-23 Inoue Japax Res
KR100298312B1 (en) * 1998-12-24 2001-10-26 백대현 Manufacturing method of wood substitute material using mixed waste synthetic resin

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