JPS60146713U - Injection molding machine with hydraulic oil heating circuit - Google Patents
Injection molding machine with hydraulic oil heating circuitInfo
- Publication number
- JPS60146713U JPS60146713U JP3457884U JP3457884U JPS60146713U JP S60146713 U JPS60146713 U JP S60146713U JP 3457884 U JP3457884 U JP 3457884U JP 3457884 U JP3457884 U JP 3457884U JP S60146713 U JPS60146713 U JP S60146713U
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- control valve
- valve
- pilot
- flow control
- 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
- Fluid-Pressure Circuits (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は本考案に関す□る従来の油圧回路であり、第２
図は本考案の実施例を示す回路図である。
１：型締シリンダ、９：電磁方向流量制御弁、１０：可
変吐出量ポンプ、１１：吐出量制御弁、。
１２：ピークカット用リリーフ弁、１５：手動パイロッ
ト切換弁。Figure 1 shows a conventional hydraulic circuit related to the present invention, and Figure 2 shows a conventional hydraulic circuit related to the present invention.
The figure is a circuit diagram showing an embodiment of the present invention. 1: Mold clamping cylinder, 9: Electromagnetic directional flow control valve, 10: Variable discharge amount pump, 11: Discharge amount control valve. 12: Relief valve for peak cut, 15: Manual pilot switching valve.
Claims (1)
装置である油圧シリンダに流入させる管路を設け、該管
路に油の流れを断にし又油の流量を調整する電磁方向流
量制御弁を設け、該可変吐出量ポンプと該電磁方向流量
制御弁との間の管路から分岐した管路にピークカット用
リリーフ弁を設け、一方該可変吐出量ポンプの吐出量を
増減する吐出量制御弁を設け、該吐出量制御弁のスプリ
ング加勢力を併用した吐出量増大側パイロット油圧′・
室と該電磁方向流量制御弁と油圧シリンダの間の管
路をパイロット管路にて連結し更に該パイロット管路を
ピークカット用すリｉフ弁の外部ドレン孔に連結し、前
記吐出量制御弁の吐出量増大側パイロット油圧室に人名
パイロット油を該電磁方向流量制御弁の１次側又は２次
側からの管路から流入するよう選択するパイハツト弁を
設け、該パイハツト弁を該電磁方向流量制御弁の２次側
からパイロット管路を閉じ該電磁方向流量制御弁を中立
位置にし、１次側管路を閉じ２次側管路をタンクに連通
したとき、該吐出量声す両弁に設けたパイロット油圧室
の両方に該電磁方向流量制御弁の１次側管路からのパイ
ロット油を流入させ、前記吐出量制御弁に設けたスプリ
ング力によって可変吐出量ポンプの吐出量を最大にさせ
ることを特長とした作動油昇温回路を備えた射出成形機
。An electromagnetic direction flow control system is provided in which a pipe is provided to allow the oil discharged from the variable discharge pump to flow into the hydraulic cylinder that is the driving device of the injection molding machine, and the flow of oil is cut off in the pipe and the flow rate of the oil is adjusted. A valve is provided, and a relief valve for peak cut is provided in a pipe line branched from a pipe line between the variable discharge rate pump and the electromagnetic directional flow control valve, and a discharge rate for increasing or decreasing the discharge rate of the variable discharge rate pump. A control valve is provided, and the pilot hydraulic pressure on the discharge volume increasing side using the spring biasing force of the discharge volume control valve is
A pilot pipe connects the pipe between the chamber, the electromagnetic directional flow control valve, and the hydraulic cylinder, and the pilot pipe is further connected to an external drain hole of a relief valve for peak cutting, thereby controlling the discharge amount. A pihat valve is provided in the pilot hydraulic chamber on the discharge volume increasing side of the valve, and the pihat valve is configured to select pilot oil to flow into the pipe from the primary side or secondary side of the electromagnetic direction flow control valve. When the pilot pipe is closed from the secondary side of the flow control valve, the electromagnetic direction flow control valve is placed in the neutral position, the primary pipe is closed, and the secondary pipe is communicated with the tank, both valves produce the discharge volume. Pilot oil from the primary side pipe of the electromagnetic directional flow control valve is caused to flow into both pilot hydraulic chambers provided in the valve, and the discharge volume of the variable discharge volume pump is maximized by a spring force provided in the discharge volume control valve. An injection molding machine equipped with a hydraulic oil temperature rising circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3457884U JPS60146713U (en) | 1984-03-09 | 1984-03-09 | Injection molding machine with hydraulic oil heating circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3457884U JPS60146713U (en) | 1984-03-09 | 1984-03-09 | Injection molding machine with hydraulic oil heating circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60146713U true JPS60146713U (en) | 1985-09-28 |
Family
ID=30538076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3457884U Pending JPS60146713U (en) | 1984-03-09 | 1984-03-09 | Injection molding machine with hydraulic oil heating circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60146713U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018154970A (en) * | 2017-03-15 | 2018-10-04 | 株式会社クボタ | Hydraulic system of working machine |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5547641A (en) * | 1978-04-28 | 1980-04-04 | Alkaloida Vegyeszeti Gyar | Phenylether compound and its manufacture |
-
1984
- 1984-03-09 JP JP3457884U patent/JPS60146713U/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5547641A (en) * | 1978-04-28 | 1980-04-04 | Alkaloida Vegyeszeti Gyar | Phenylether compound and its manufacture |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018154970A (en) * | 2017-03-15 | 2018-10-04 | 株式会社クボタ | Hydraulic system of working machine |
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