JPS6353002U - - Google Patents
Info
- Publication number
- JPS6353002U JPS6353002U JP14511986U JP14511986U JPS6353002U JP S6353002 U JPS6353002 U JP S6353002U JP 14511986 U JP14511986 U JP 14511986U JP 14511986 U JP14511986 U JP 14511986U JP S6353002 U JPS6353002 U JP S6353002U
- Authority
- JP
- Japan
- Prior art keywords
- speed
- hydraulic actuator
- pump
- discharge amount
- injection molding
- 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
- 238000001746 injection moulding Methods 0.000 claims 3
- 238000006073 displacement reaction Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 3
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
- F15B11/04—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed
- F15B11/042—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed by means in the feed line, i.e. "meter in"
- F15B11/0426—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed by means in the feed line, i.e. "meter in" by controlling the number of pumps or parallel valves switched on
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/205—Systems with pumps
- F15B2211/2053—Type of pump
- F15B2211/20538—Type of pump constant capacity
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/205—Systems with pumps
- F15B2211/2053—Type of pump
- F15B2211/20546—Type of pump variable capacity
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/205—Systems with pumps
- F15B2211/20576—Systems with pumps with multiple pumps
- F15B2211/20584—Combinations of pumps with high and low capacity
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/255—Flow control functions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/305—Directional control characterised by the type of valves
- F15B2211/30505—Non-return valves, i.e. check valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/50—Pressure control
- F15B2211/505—Pressure control characterised by the type of pressure control means
- F15B2211/50509—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means
- F15B2211/50536—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means using unloading valves controlling the supply pressure by diverting fluid to the return line
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/50—Pressure control
- F15B2211/515—Pressure control characterised by the connections of the pressure control means in the circuit
- F15B2211/5151—Pressure control characterised by the connections of the pressure control means in the circuit being connected to a pressure source and a directional control valve
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/50—Pressure control
- F15B2211/55—Pressure control for limiting a pressure up to a maximum pressure, e.g. by using a pressure relief valve
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/60—Circuit components or control therefor
- F15B2211/635—Circuits providing pilot pressure to pilot pressure-controlled fluid circuit elements
- F15B2211/6355—Circuits providing pilot pressure to pilot pressure-controlled fluid circuit elements having valve means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/75—Control of speed of the output member
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Pressure Circuits (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Description
第1図は本考案の実施例を示す図、第2図は本
考案による吐出量特性を示す図、第3図は従来の
吐出量特性を示す図である。 10……油圧アクチユエータ、12……可変吐
出量ポンプ、14,16,18……固定吐出量ポ
ンプ、36,38,40,42……オンロード弁
、44……油圧アクチユエータ速度設定器、46
……比較器、48……ポンプ負荷制御器、50…
…演算装置、52……可変吐出量ポンプ制御用サ
ーボアンプ、53……比較速度設定器。
考案による吐出量特性を示す図、第3図は従来の
吐出量特性を示す図である。 10……油圧アクチユエータ、12……可変吐
出量ポンプ、14,16,18……固定吐出量ポ
ンプ、36,38,40,42……オンロード弁
、44……油圧アクチユエータ速度設定器、46
……比較器、48……ポンプ負荷制御器、50…
…演算装置、52……可変吐出量ポンプ制御用サ
ーボアンプ、53……比較速度設定器。
Claims (1)
- 【実用新案登録請求の範囲】 射出成形機の油圧アクチユエータへ供給する油
量を制御する射出成形機の油圧制御装置において
、 油圧源を構成する1台の可変吐出量ポンプ及び
N−1(Nは2以上の自然数)台の固定吐出量ポ
ンプと、油圧アクチユエータの動作速度を設定す
る油圧アクチユエータ速度設定器と、油圧アクチ
ユエータの最大速度をN分割してN段の比較速度
を設定する比較速度設定器と、油圧アクチユエー
タ速度設定器によつて設定された設定速度が比較
速度設定器によつて設定された第何段の速度範囲
に入るかを半定する比較器と、上記設定速度が第
何段にあるかに応じて可変吐出量ポンプ及び所定
の組合わせの固定吐出量ポンプを負荷状態とする
ポンプ負荷制御器と、比較器が設定速度が第M(
MはN以下の自然数)段にあると判断したとき設
定速度Vs、第M段の比較速度の最小値m0、及
び第M段の比較速度の最大値m1に基づいて(V
s−m0)/(m1−m0)の演算を行いこれに
応じた電気信号を発生する演算装置と、演算装置
からの電気信号に基づいて可変吐出量ポンプに吐
出量指令信号を出力する可変吐出量ポンプ制御用
サーボアンプと、を有することを特徴とする射出
成形機の油圧制御装置。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14511986U JPS6353002U (ja) | 1986-09-24 | 1986-09-24 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14511986U JPS6353002U (ja) | 1986-09-24 | 1986-09-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6353002U true JPS6353002U (ja) | 1988-04-09 |
Family
ID=31056362
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14511986U Pending JPS6353002U (ja) | 1986-09-24 | 1986-09-24 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6353002U (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012173005A1 (ja) * | 2011-06-15 | 2012-12-20 | 宇部興産機械株式会社 | 押出プレス |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5659005A (en) * | 1979-10-22 | 1981-05-22 | Kobe Steel Ltd | Controller for hydraulic circuit including plural variable-capacity pumps in parallel |
JPS5935771A (ja) * | 1982-08-24 | 1984-02-27 | 共和眞空技術株式会社 | 真空凍結乾燥装置のトラツプの除霜再生方法と装置 |
JPS5932190B2 (ja) * | 1976-05-19 | 1984-08-07 | 富士写真フイルム株式会社 | 塗布方法及び装置 |
-
1986
- 1986-09-24 JP JP14511986U patent/JPS6353002U/ja active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5932190B2 (ja) * | 1976-05-19 | 1984-08-07 | 富士写真フイルム株式会社 | 塗布方法及び装置 |
JPS5659005A (en) * | 1979-10-22 | 1981-05-22 | Kobe Steel Ltd | Controller for hydraulic circuit including plural variable-capacity pumps in parallel |
JPS5935771A (ja) * | 1982-08-24 | 1984-02-27 | 共和眞空技術株式会社 | 真空凍結乾燥装置のトラツプの除霜再生方法と装置 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012173005A1 (ja) * | 2011-06-15 | 2012-12-20 | 宇部興産機械株式会社 | 押出プレス |
JP2013000762A (ja) * | 2011-06-15 | 2013-01-07 | Ube Machinery Corporation Ltd | 押出プレス |
US9643225B2 (en) | 2011-06-15 | 2017-05-09 | Ube Machinery Corporation, Ltd. | Extrusion press |
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