JPH0186516U - - Google Patents
Info
- Publication number
- JPH0186516U JPH0186516U JP18191087U JP18191087U JPH0186516U JP H0186516 U JPH0186516 U JP H0186516U JP 18191087 U JP18191087 U JP 18191087U JP 18191087 U JP18191087 U JP 18191087U JP H0186516 U JPH0186516 U JP H0186516U
- Authority
- JP
- Japan
- Prior art keywords
- injection
- switching valve
- rotation
- ram
- valve
- 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
- 238000002347 injection Methods 0.000 claims description 10
- 239000007924 injection Substances 0.000 claims description 10
- 238000001746 injection moulding Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Fluid-Pressure Circuits (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Description
第１図は本考案に係る射出成形装置における射
出用油圧回路の概略図、第２図は本考案を実施し
た一実施例の射出成形装置の概略正面図である。
１……射出成形装置、２５……射出ノズル、２
７……射出ラム、２９……油圧モータ、３１……
インジエクシヨン用シリンダ、７３……背圧調整
用リリーフ弁、ＣＶ１……４ポート３位置切換弁
（第１切換弁）、ＣＶ２……４ポート２位置切換
弁（第２切換弁）。
FIG. 1 is a schematic diagram of an injection hydraulic circuit in an injection molding apparatus according to the present invention, and FIG. 2 is a schematic front view of an injection molding apparatus according to an embodiment of the present invention. 1...Injection molding device, 25...Injection nozzle, 2
7...Injection ram, 29...Hydraulic motor, 31...
Cylinder for injection extension, 73... Relief valve for adjusting back pressure, CV1... 4 port 3 position switching valve (first switching valve), CV2... 4 port 2 position switching valve (second switching valve).
Claims (1)
なスクリユを備えた射出ラムを前進後端せしめる
インジエクシヨン用シリンダを設け、そのインジ
エクシヨン用シリンダを作動せしめる油圧ポンプ
による油圧回路中に射出ラムを前進後退せしめる
ための第１の切換弁と、スクリユ回転用油圧モー
タの回転を制御するための第２切換弁を設け、前
記インジエクシヨン用シリンダの第１切換弁によ
る前進送り用の供給回路と、第２切換弁による戻
りポートとを背圧調整用リリーフ弁を備えた管路
で接続してなることを特徴とする射出成形装置に
おける射出用油圧回路。 An injection ram equipped with a rotatable screw for feeding material to the injection molding device is provided with an injection ram at its forward and rear end, and the injection ram is moved forward and backward in a hydraulic circuit using a hydraulic pump that operates the injection ram. a first switching valve for controlling the rotation of the screw rotation hydraulic motor; and a second switching valve for controlling the rotation of the screw rotation hydraulic motor; a supply circuit for forward feeding by the first switching valve of the injection cylinder; A hydraulic circuit for injection in an injection molding apparatus, characterized in that a return port by a valve is connected to the return port by a conduit provided with a relief valve for adjusting back pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18191087U JPH0186516U (en) | 1987-12-01 | 1987-12-01 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18191087U JPH0186516U (en) | 1987-12-01 | 1987-12-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0186516U true JPH0186516U (en) | 1989-06-08 |
Family
ID=31473373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18191087U Pending JPH0186516U (en) | 1987-12-01 | 1987-12-01 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0186516U (en) |
-
1987
- 1987-12-01 JP JP18191087U patent/JPH0186516U/ja active Pending
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