JPH0446203U - - Google Patents

Info

Publication number
JPH0446203U
JPH0446203U JP8803790U JP8803790U JPH0446203U JP H0446203 U JPH0446203 U JP H0446203U JP 8803790 U JP8803790 U JP 8803790U JP 8803790 U JP8803790 U JP 8803790U JP H0446203 U JPH0446203 U JP H0446203U
Authority
JP
Japan
Prior art keywords
hydraulic
pump
hydraulic oil
relief valve
passage
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
Application number
JP8803790U
Other languages
English (en)
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP8803790U priority Critical patent/JPH0446203U/ja
Publication of JPH0446203U publication Critical patent/JPH0446203U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Fluid-Pressure Circuits (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Description

【図面の簡単な説明】
第1図は本考案の一実施例に係る射出成形機の
作動油昇温装置の概略図、第2図は第1図におけ
る制御信号出力器内の配線を示す回路図、第3図
は本考案における時間と負荷圧力との関係を示す
グラフ、第4図は本考案における時間と油温との
関係を示すグラフである。 1……油圧ポンプ、2……油圧シリンダ、4…
…第1の管路、9……バイパス通路、10……電
磁リリーフ弁、11……制御信号出力器、13,
17,21,25……タイマ、14,18,22
,26……タイマ接点、15,19,23,25
,29…コイル、16,20,24,28……接
点、30,32,34,36,38……制御信号
発生器、31,33,35,37,39……接点

Claims (1)

    【実用新案登録請求の範囲】
  1. 主通路を介して油圧シリンダ等の油圧駆動装置
    に接続された油圧ポンプと、前記主通路に連通す
    るバイパス通路に設けられ前記油圧ポンプから吐
    出された作動油の圧力を調整する電磁リリーフ弁
    と、前記油圧ポンプから吐出された作動油の圧力
    をポンプの始動からの時間経過に応じて段階的に
    増圧させる制御信号を前記電磁リリーフ弁に出力
    する制御手段とを備えることを特徴とする射出成
    形機の作動油昇温装置。
JP8803790U 1990-08-23 1990-08-23 Pending JPH0446203U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8803790U JPH0446203U (ja) 1990-08-23 1990-08-23

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8803790U JPH0446203U (ja) 1990-08-23 1990-08-23

Publications (1)

Publication Number Publication Date
JPH0446203U true JPH0446203U (ja) 1992-04-20

Family

ID=31820926

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8803790U Pending JPH0446203U (ja) 1990-08-23 1990-08-23

Country Status (1)

Country Link
JP (1) JPH0446203U (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010060038A (ja) * 2008-09-03 2010-03-18 Mitsubishi Heavy Ind Ltd 増速機の潤滑装置及び方法
JP2011126107A (ja) * 2009-12-17 2011-06-30 Nissei Plastics Ind Co 成形機の作動油昇温方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS622801B2 (ja) * 1979-01-12 1987-01-21 Shigeo Chiba
JPS62220706A (ja) * 1986-03-19 1987-09-28 Toyo Kikai Kinzoku Kk 油圧作動成形機の油温ヒ−トアツプ方法

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS622801B2 (ja) * 1979-01-12 1987-01-21 Shigeo Chiba
JPS62220706A (ja) * 1986-03-19 1987-09-28 Toyo Kikai Kinzoku Kk 油圧作動成形機の油温ヒ−トアツプ方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010060038A (ja) * 2008-09-03 2010-03-18 Mitsubishi Heavy Ind Ltd 増速機の潤滑装置及び方法
JP2011126107A (ja) * 2009-12-17 2011-06-30 Nissei Plastics Ind Co 成形機の作動油昇温方法

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