JPS5577542A - Large-sized injection molding machine - Google Patents
Large-sized injection molding machineInfo
- 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
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
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)
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 |
-
1978
- 1978-12-05 JP JP14966878A patent/JPS5577542A/en active Pending
Cited By (3)
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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