JPS62801U - - Google Patents
Info
- Publication number
- JPS62801U JPS62801U JP7286686U JP7286686U JPS62801U JP S62801 U JPS62801 U JP S62801U JP 7286686 U JP7286686 U JP 7286686U JP 7286686 U JP7286686 U JP 7286686U JP S62801 U JPS62801 U JP S62801U
- Authority
- JP
- Japan
- Prior art keywords
- pilot
- valve
- main line
- throttle
- spring chamber
- 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.)
- Granted
Links
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 239000012530 fluid Substances 0.000 claims 1
- 238000001746 injection moulding Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Fluid-Pressure Circuits (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Description
第１図はこの考案の一実施例の回路図、第２図
は上記実施例の時間―充填圧力特性図、第３図は
上記実施例の圧力オーバライト特性図、第４図は
従来例の回路図である。
１……可変ポンプ、２……パイロツト弁、５…
…射出用アクチユエータ、６……メインライン、
７……絞り弁、１８……パイロツトリリーフ弁。
Fig. 1 is a circuit diagram of an embodiment of this invention, Fig. 2 is a time-filling pressure characteristic diagram of the above embodiment, Fig. 3 is a pressure overwrite characteristic diagram of the above embodiment, and Fig. 4 is a diagram of the conventional example. It is a circuit diagram. 1... variable pump, 2... pilot valve, 5...
...Injection actuator, 6...Main line,
7... Throttle valve, 18... Pilot relief valve.
Claims (1)
するポンプポート・ノーマルクローズド形の切換
弁３と可変ポンプ１とを接続するメインライン６
に絞り弁７を設け、この絞り弁７の前後から分岐
したパイロツトライン８，９をパイロツト弁２の
パイロツト室とバネ室とに接続し、このパイロツ
ト弁２で上記可変ポンプ１の吐出量制御部１６を
、上記メインライン６とタンクライン１２とに切
換連通すると共に、上記パイロツト弁２のバネ室
に連通する上記パイロツトライン９に絞り１０を
設ける一方、上記メインライン６の設定圧力を多
段階に設定するパイロツトリリーフ弁１８を上記
パイロツト弁２のバネ室に接続したことを特徴と
する射出成形機用流体制御装置。 A main line 6 that connects the pump port/normally closed type switching valve 3 that controls only the operating direction of the injection actuator 5 and the variable pump 1.
A throttle valve 7 is provided at the throttle valve 7, and pilot lines 8 and 9 branched from before and after the throttle valve 7 are connected to the pilot chamber and spring chamber of the pilot valve 2, and the pilot valve 2 controls the discharge amount control section of the variable pump 1. 16 is switched to communicate with the main line 6 and the tank line 12, and a throttle 10 is provided in the pilot line 9 communicating with the spring chamber of the pilot valve 2, and the set pressure of the main line 6 is set in multiple stages. A fluid control device for an injection molding machine, characterized in that a pilot relief valve 18 to be set is connected to a spring chamber of the pilot valve 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986072866U JPH021522Y2 (en) | 1986-05-14 | 1986-05-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986072866U JPH021522Y2 (en) | 1986-05-14 | 1986-05-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62801U true JPS62801U (en) | 1987-01-07 |
| JPH021522Y2 JPH021522Y2 (en) | 1990-01-16 |
Family
ID=30611682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986072866U Expired JPH021522Y2 (en) | 1986-05-14 | 1986-05-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH021522Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000240603A (en) * | 1999-02-18 | 2000-09-05 | Sumitomo Heavy Ind Ltd | Hydraulic driving circuit using swash plate type variable displacement pump |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2892312A (en) * | 1958-01-27 | 1959-06-30 | Deere & Co | Demand compensated hydraulic system |
| JPS4989202A (en) * | 1972-12-18 | 1974-08-26 | ||
| JPS50111628A (en) * | 1974-02-13 | 1975-09-02 | ||
| JPS5461192U (en) * | 1977-10-07 | 1979-04-27 | ||
| JPS5461192A (en) * | 1977-10-19 | 1979-05-17 | Asahi Chem Ind Co Ltd | Preparation of 1-(5-oxohexyl)theobromine |
-
1986
- 1986-05-14 JP JP1986072866U patent/JPH021522Y2/ja not_active Expired
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2892312A (en) * | 1958-01-27 | 1959-06-30 | Deere & Co | Demand compensated hydraulic system |
| JPS4989202A (en) * | 1972-12-18 | 1974-08-26 | ||
| US3856436A (en) * | 1972-12-18 | 1974-12-24 | Sperry Rand Corp | Power transmission |
| JPS50111628A (en) * | 1974-02-13 | 1975-09-02 | ||
| JPS5461192U (en) * | 1977-10-07 | 1979-04-27 | ||
| JPS5461192A (en) * | 1977-10-19 | 1979-05-17 | Asahi Chem Ind Co Ltd | Preparation of 1-(5-oxohexyl)theobromine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000240603A (en) * | 1999-02-18 | 2000-09-05 | Sumitomo Heavy Ind Ltd | Hydraulic driving circuit using swash plate type variable displacement pump |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH021522Y2 (en) | 1990-01-16 |