JPS6360773U - - Google Patents
Info
- Publication number
- JPS6360773U JPS6360773U JP15438086U JP15438086U JPS6360773U JP S6360773 U JPS6360773 U JP S6360773U JP 15438086 U JP15438086 U JP 15438086U JP 15438086 U JP15438086 U JP 15438086U JP S6360773 U JPS6360773 U JP S6360773U
- Authority
- JP
- Japan
- Prior art keywords
- valve
- pilot
- pressure
- flow rate
- rate adjustment
- 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
- 238000010586 diagram Methods 0.000 description 5
- 238000001746 injection moulding Methods 0.000 description 3
Landscapes
- Control Of Fluid Pressure (AREA)
- Safety Valves (AREA)
- 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を示す圧力制御弁
の縦断面図、第２図はこの考案による圧力制御弁
を射出成形機に使用した場合の例を示す油圧回路
図、第３図及び第４図は従来の標準のリリーフ弁
を示す縦断面図及びその油圧回路図、第５図及び
第６図は従来のノーマルオープンタンプの圧力制
御弁を示す縦断面図及びその油圧回路図、第７図
は第３図の標準のリリーフ弁を射出成形機に使用
した例を示す油圧回路図、第８図は第５図のノー
マルオープンタンプの圧力制御弁を射出成形機に
応用した例を示す油圧回路図である。
１……ボデイ、３……メイン流路、５……パイ
ロツトリリーフ弁、９……流量調整弁、１２……
減圧弁、１４……バランスピストン（弁体）、１
５……スプリング、ＰＬ１……第１のパイロツト
ライン、ＰＬ２……第２のパイロツトライン。
Fig. 1 is a longitudinal sectional view of a pressure control valve showing an embodiment of this invention, Fig. 2 is a hydraulic circuit diagram showing an example of the pressure control valve of this invention being used in an injection molding machine, and Figs. FIG. 4 is a vertical cross-sectional view and hydraulic circuit diagram of a conventional standard relief valve, and FIGS. 5 and 6 are vertical cross-sectional views and hydraulic circuit diagrams of a conventional normally open tump pressure control valve. Figure 7 is a hydraulic circuit diagram showing an example in which the standard relief valve shown in Figure 3 is used in an injection molding machine, and Figure 8 shows an example in which the normally open tamp pressure control valve shown in Figure 5 is applied to an injection molding machine. It is a hydraulic circuit diagram. 1... Body, 3... Main flow path, 5... Pilot relief valve, 9... Flow rate adjustment valve, 12...
Pressure reducing valve, 14...Balance piston (valve body), 1
5... Spring, PL 1 ... First pilot line, PL 2 ... Second pilot line.
Claims (1)
能に設けると共に、該ボデイ内の第１のパイロツ
トラインに流量調整弁とパイロツトリリーフ弁と
を設け、前記流量調整弁を介して一定流量に調整
されパイロツトリリーフ弁によつて圧力を調整さ
れたパイロツト油圧と前記ボデイ内に収納された
スプリングの付勢力とを前記弁体に対して閉弁方
向に作用させ、前記ボデイ内の第２のパイロツト
ラインに減圧弁を設け、該減圧弁を介して減圧さ
れたパイロツト油圧を前記弁体に対して開弁方向
に作用させるようにしたことを特徴とする圧力制
御弁。 A valve body for opening and closing the main flow path is slidably provided in the body, and a flow rate adjustment valve and a pilot relief valve are provided in the first pilot line in the body, and the flow rate is maintained at a constant level via the flow rate adjustment valve. The pilot oil pressure whose pressure has been adjusted by the pilot relief valve and the biasing force of the spring housed in the body are applied to the valve body in the valve closing direction, and the second pilot pressure in the body is actuated in the valve closing direction. A pressure control valve characterized in that a pressure reducing valve is provided in the line, and pilot hydraulic pressure reduced through the pressure reducing valve is applied to the valve body in a valve opening direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15438086U JPH058389Y2 (en) | 1986-10-09 | 1986-10-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15438086U JPH058389Y2 (en) | 1986-10-09 | 1986-10-09 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6360773U true JPS6360773U (en) | 1988-04-22 |
| JPH058389Y2 JPH058389Y2 (en) | 1993-03-02 |
Family
ID=31074119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15438086U Expired - Lifetime JPH058389Y2 (en) | 1986-10-09 | 1986-10-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH058389Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH068875U (en) * | 1992-07-09 | 1994-02-04 | 株式会社共立 | Regulator valve |
-
1986
- 1986-10-09 JP JP15438086U patent/JPH058389Y2/ja not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH068875U (en) * | 1992-07-09 | 1994-02-04 | 株式会社共立 | Regulator valve |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH058389Y2 (en) | 1993-03-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS6360772U (en) | ||
| JPH0425078U (en) | ||
| SU925832A1 (en) | Device for control of safety brake of hoisting machine | |
| JPS59182717U (en) | pressure regulating valve | |
| JPH01157006U (en) | ||
| JPH0359572U (en) | ||
| JPH0311185U (en) | ||
| JPH0480904U (en) | ||
| JPS62167977U (en) | ||
| JPH02130484U (en) | ||
| JPS6317378U (en) | ||
| JPS55107101A (en) | Direction controlling valve | |
| JPH01124367U (en) | ||
| JPH0227058U (en) | ||
| JPH0277181U (en) | ||
| JPH02132183U (en) | ||
| JPS6181311U (en) | ||
| JPS62169052U (en) | ||
| JPS58124364U (en) | Load responsive hydraulic control valve | |
| JPH01119980U (en) | ||
| JPH0165402U (en) | ||
| JPS63195105U (en) | ||
| JPS6113038U (en) | Brake device with hydraulic booster | |
| JPS61177262U (en) | ||
| JPS6057794U (en) | Discharge rate control device for variable discharge rate pump |