JPS58131406A - Control device of compressed air operating actuator - Google Patents
Control device of compressed air operating actuatorInfo
- Publication number
- JPS58131406A JPS58131406A JP58006115A JP611583A JPS58131406A JP S58131406 A JPS58131406 A JP S58131406A JP 58006115 A JP58006115 A JP 58006115A JP 611583 A JP611583 A JP 611583A JP S58131406 A JPS58131406 A JP S58131406A
- Authority
- JP
- Japan
- Prior art keywords
- inlet
- compressed air
- actuator
- valve
- outlet
- 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
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
- F15B11/06—Servomotor systems without provision for follow-up action; Circuits therefor involving features specific to the use of a compressible medium, e.g. air, steam
- F15B11/068—Servomotor systems without provision for follow-up action; Circuits therefor involving features specific to the use of a compressible medium, e.g. air, steam with valves for gradually putting pneumatic systems under pressure
-
- 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
- F15B2211/30525—Directional control valves, e.g. 4/3-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
- F15B2211/30—Directional control
- F15B2211/32—Directional control characterised by the type of actuation
- F15B2211/329—Directional control characterised by the type of actuation actuated by fluid pressure
-
- 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
- F15B2211/40—Flow control
- F15B2211/405—Flow control characterised by the type of flow control means or valve
- F15B2211/40515—Flow control characterised by the type of flow control means or valve with variable throttles or orifices
-
- 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
- F15B2211/40—Flow control
- F15B2211/405—Flow control characterised by the type of flow control means or valve
- F15B2211/40576—Assemblies of multiple valves
- F15B2211/40584—Assemblies of multiple valves the flow control means arranged in parallel with a check 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
- F15B2211/40—Flow control
- F15B2211/42—Flow control characterised by the type of actuation
- F15B2211/428—Flow control characterised by the type of actuation actuated by fluid pressure
-
- 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
- F15B2211/40—Flow control
- F15B2211/455—Control of flow in the feed line, i.e. meter-in control
-
- 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
- F15B2211/40—Flow control
- F15B2211/46—Control of flow in the return line, i.e. meter-out control
-
- 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
- F15B2211/40—Flow control
- F15B2211/47—Flow control in one direction only
- F15B2211/473—Flow control in one direction only without restriction in the reverse direction
-
- 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
- F15B2211/61—Secondary circuits
-
- 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
- F15B2211/755—Control of acceleration or deceleration 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)
Abstract
Description
【発明の詳細な説明】 に生ずるジャンピングを防止する制御装置に関する。[Detailed description of the invention] The present invention relates to a control device that prevents jumping that occurs in
例えば複動形シリンダの休止時に両側の作動室を大気開
放する回路構成ではもちろんのこと、切換弁のオールボ
ートブロックの位置で休止する場合でも長時間停止させ
ると、作動室は圧縮空気の漏出で大気圧程度まで低下す
る。作動室が大気圧程度の状態から一方の作動室へ圧縮
空気を供給し他方の作動室からの排出空気を絞縮制御し
て作動速度を制御するようにしても、充分に排出空気圧
が上昇せずジャンピングを発生する。本発明はこのよう
なジャンピングを良好に防止する圧縮空気作動アクチェ
エータの制御装置を実現するものである。For example, when a double-acting cylinder is stopped, the working chambers on both sides are opened to the atmosphere, and even when the switching valve is stopped at the all-boat block position, if the cylinder is stopped for a long time, the working chamber may leak compressed air. The pressure drops to about atmospheric pressure. Even if the operating speed is controlled by supplying compressed air to one working chamber from a state where the working chamber is at about atmospheric pressure and controlling the exhaust air from the other working chamber, the exhaust air pressure will not increase sufficiently. Jumping occurs. The present invention realizes a control device for a compressed air operated actuator that effectively prevents such jumping.
本発明の一実施例を図面に基づいて説明する。An embodiment of the present invention will be described based on the drawings.
(1)は複動形アクチーエータとしてのシリンダでピス
トン(IC)の両側に作動室(la)(lb)が形成さ
れ、(2a)(2b)は流量制御弁、(3)は入口(4
)を圧縮空気源に、出口(5a)(5b)を作動室(l
a)(:Lb)にそれぞれ接続した制御弁である。(6
)は5ボ一ト3位置形の主弁、(7)は5ボ一ト3位置
形のパイロット弁、(8a)(8b)はパイロット流路
、(9a)(9b)は流量制御弁、(10a)(lob
)はチェック弁である。主弁(6)はft量制御弁(9
a)(9b)とチェック弁(loa)(lob )間の
パイロット流路(8a)(8b)の圧力をパイロット圧
として受けばねに抗して切換えられる。(1) is a cylinder as a double-acting actuator, with working chambers (la) and (lb) formed on both sides of the piston (IC), (2a) and (2b) are flow control valves, and (3) is an inlet (4
) is the compressed air source, and the outlets (5a) and (5b) are the working chamber (l
a) Control valves connected to (:Lb). (6
) is a 5-point, 3-position main valve, (7) is a 5-point, 3-position pilot valve, (8a) and (8b) are pilot flow paths, (9a and 9b) are flow control valves, (10a) (lob
) is a check valve. The main valve (6) is the ft amount control valve (9
a) The pressure in the pilot flow path (8a) (8b) between the check valve (LOA) (LOB) and the check valve (LOA) (LOB) is used as the pilot pressure and is switched against the spring.
次に作動を説明する。長時間停止させ作動室(la)(
lb)が大気圧程度の図の状態からパイロット弁(7)
を左位置へ切換えると、圧縮空気源から入口(4)をへ
てパイロット流路(8b)へ流入する圧縮空気ll−を
流量制御弁(9b)で絞縮制御されチェック弁(10b
)、出口(5b)、流量制御弁(2b)をへて作動室(
1b)へ流入し、ピストン(lc )は流量制御弁(9
b)で絞縮制御するメータイン制御でジャンピングを発
生することなくゆるやかに始動し、作動室(1a)から
流量制御弁(2a)、出口(5a)をへて主弁(6)間
の空気は圧縮される。ピストン(lc )がストローク
端に達して圧力が上昇すると主弁(6)かげねるで抗し
て左位置へ切換わり入口(4)と出口(5b)間を連通
ずる。なお、ピストン(lc)がストローク端に達して
圧力が上昇し主弁(6)が切換わるよう説明したが、作
動負荷等によってはピストン(IC)のストローク途中
で圧力が上昇し主弁(6)が切換わることもある。作動
室(1b)が高圧のこの状態からパイロット弁(7)を
右位置へ切換えれば、パイロット流路(8b)内の圧力
が低下して主弁(6)が中立位置へ戻り、パイロット流
路(8a)へ流入する圧縮空気は流量制御弁(9a)で
絞縮制御され、チェック弁(l O、、a )曳出口(
5a )、流量制御弁(2a)をへて作動室(1a)へ
流入する。Next, the operation will be explained. It is stopped for a long time and the working chamber (la) (
From the state shown in the figure when lb) is around atmospheric pressure, open the pilot valve (7).
When the switch is switched to the left position, the compressed air flowing from the compressed air source through the inlet (4) into the pilot flow path (8b) is throttled and controlled by the flow control valve (9b), and the check valve (10b)
), the outlet (5b), and the flow control valve (2b) to the working chamber (
1b), and the piston (lc) flows into the flow control valve (9
The meter-in control that performs throttling control in b) starts the engine slowly without causing any jumping, and the air flows from the working chamber (1a) through the flow control valve (2a) and the outlet (5a) to the main valve (6). Compressed. When the piston (lc) reaches the stroke end and the pressure increases, the main valve (6) resists the movement and switches to the left position, establishing communication between the inlet (4) and outlet (5b). It has been explained that when the piston (LC) reaches the stroke end, the pressure rises and the main valve (6) switches, but depending on the operating load etc., the pressure may rise during the stroke of the piston (IC) and the main valve (6) ) may change. If the pilot valve (7) is switched to the right position from this state where the working chamber (1b) is under high pressure, the pressure in the pilot flow path (8b) will decrease, the main valve (6) will return to the neutral position, and the pilot flow will be reduced. The compressed air flowing into the passage (8a) is throttled and controlled by the flow control valve (9a), and the check valve (lO,,a) and the tow port (
5a), flows into the working chamber (1a) through the flow control valve (2a).
作動室(lb)から流量制御弁(2b)、出口(5b)
をへて主弁(6)間の空気は高圧のためパイロット流路
(8a)内はすみやかに圧力が上昇し主弁(6)がばね
に抗して右位置へ切換わり入口(4)と出口(5a)間
を連通し、出口(5b)を大気開放し、大流量の圧縮空
気が作動室(1a)へ流入し作動室(1b)からの排出
空気は流量制御弁(2b)をへて排出し、ピストン(1
c)はi5!!制御弁(2b)で絞縮制御するメータイ
ン制御で作動する。From the working chamber (lb) to the flow control valve (2b) and the outlet (5b)
Since the air between the main valve (6) is at high pressure, the pressure inside the pilot flow path (8a) quickly rises, and the main valve (6) switches to the right position against the spring, opening the air between the inlet (4) and the pilot flow path (8a). The outlets (5a) are communicated, the outlet (5b) is opened to the atmosphere, a large flow of compressed air flows into the working chamber (1a), and the exhaust air from the working chamber (1b) passes through the flow control valve (2b). and drain the piston (1
c) is i5! ! It operates with meter-in control that performs throttling control using the control valve (2b).
パイロット弁(7)を中立位置に切換えると主弁(6)
は図の中立位置へ復帰する。When the pilot valve (7) is switched to the neutral position, the main valve (6)
returns to the neutral position shown in the figure.
このように本発明は、一方のアクチェエータ作動室へ圧
縮空気を供給すると共に他方のアクチェエータ作動室か
らの排出空気を絞縮制御して複動形アクチーエータの作
動速度を制御する圧縮空気作動アクチーエータの制御装
置において、圧縮空気源へ接続する入口と、アクチーエ
ータの二つの作動室へ接続する二つの出口と、入口とい
ずれかの出口間を連通ずる二つの切換位置と入口といず
も
れの出[1間を非連通する切換位置を有した主弁と、入
口といずれかの出口間を連通ずる二つの切換位置と入口
といずれの出口間も非連通する切換位置t[したパイロ
ット弁と、パイロット弁ビより入口といずれかの出口間
を連通し入口からの圧縮空気を該出口へ絞縮制御して流
出するそれぞれの絞り手段と、絞り手段後の出口側圧力
がばねの作用力に抗して主弁を切換えるパイロット圧と
して作用するようにする主弁のそれぞれのパイロット手
段とを備えた制御弁を設け、長時間停止しアクチーエー
タの作動室が大気圧程度まで低下しても始動時に発生す
るジャンピングを良好に防止でき、構成も比較的簡単で
ある等の特長を有する。In this manner, the present invention provides a control system for a compressed air actuator that controls the operating speed of a double-acting actuator by supplying compressed air to one actuator operating chamber and constricting the exhaust air from the other actuator operating chamber. The device has an inlet connected to a compressed air source, two outlets connected to the two working chambers of the actuator, two switching positions communicating between the inlet and either outlet, and an inlet and an outlet [1]. A main valve with a switching position that does not communicate between the two, a pilot valve that has two switching positions that communicate between the inlet and either outlet, and a switching position that does not communicate between the inlet and either outlet, and a pilot valve that has a switching position that does not communicate between the inlet and either outlet. Each throttling means communicates between the inlet and one of the outlets through the B, and compresses and controls the compressed air from the inlet to flow out to the outlet, and the outlet side pressure after the throttling means resists the acting force of the spring. A control valve is provided with a pilot means for each of the main valves to act as a pilot pressure for switching the main valves, and even if the actuator's working chamber drops to about atmospheric pressure after a long period of stoppage, the jumping that occurs during startup can be avoided. It has the advantage of being able to effectively prevent this and having a relatively simple configuration.
図面は本発明の一実施例を示す回路図である。
(1)・・・シリンダ、(la)(lb)・・・作動室
、(3)・・・制御弁、(4)・・・入口、(5a)(
5b]・・・出口、(6)・・ 主弁、(7)・・・パ
イロット弁、(8a)(8b)・・・パイロット流路、
(9a)(9b)・・・流量制御弁。
特許出願人
豊興工業株式会社The drawing is a circuit diagram showing an embodiment of the present invention. (1)... Cylinder, (la) (lb)... Working chamber, (3)... Control valve, (4)... Inlet, (5a) (
5b]... Outlet, (6)... Main valve, (7)... Pilot valve, (8a) (8b)... Pilot flow path,
(9a) (9b)...Flow rate control valve. Patent applicant Toyoko Kogyo Co., Ltd.
Claims (1)
に他方のアクチーエータ作動室からの排出空気を絞縮制
御して複動形アクチーエータの作動速度を制御する圧縮
空気作動アクチーエータの制御装置において、圧縮空気
源へ接続する入口と、アクチェエータの二つの作動室へ
接続する二つの出口と、入口といずれかの出0聞を連通
ずる二つの切換位置と入口といずれの出口間も非連通す
る切換位置を有した主弁と、入口といずれかの出口間を
連通ずる二つの切換位置と入口といずれの出口i!jも
非連通する切換位置を有したパイロ7)弁と、パイロッ
ト弁により入口といずれかの出口間を連通し入口からの
圧縮空気を該出口へ絞縮′制御して流出するそれぞれの
絞り手段と、絞り手段後の出口側用力かばねの作用力に
抗して主弁を切換えるパイロット圧として作用するよう
にする主弁のそれぞれのパイロット手段とを備えた制御
弁を設けて成る圧縮空気作動アクチーエータの制御装置
。In a compressed air actuator control device that controls the operating speed of a double-acting actuator by supplying compressed air to one actuator operating chamber and controlling exhaust air from the other actuator operating chamber to control the operating speed of the actuator, the compressed air source is It has an inlet that connects, two outlets that connect to the two working chambers of the actuator, two switching positions that communicate between the inlet and any of the outputs, and a switching position that does not communicate between the inlet and any of the outlets. Two switching positions that communicate between the main valve, the inlet and either outlet, and the inlet and either outlet i! 7) A pyro valve having a switching position that does not communicate with j, and a pilot valve that communicates between the inlet and either outlet, and controls compressed air from the inlet to the outlet to flow out. and pilot means for each of the main valves so as to act as a pilot pressure for switching the main valves against the outlet force after the throttle means or the force of the spring. control device.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP58006115A JPS58131406A (en) | 1983-01-17 | 1983-01-17 | Control device of compressed air operating actuator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP58006115A JPS58131406A (en) | 1983-01-17 | 1983-01-17 | Control device of compressed air operating actuator |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3204879A Division JPS55126107A (en) | 1979-03-19 | 1979-03-19 | Controller for compressed-air operated actuator |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS58131406A true JPS58131406A (en) | 1983-08-05 |
JPH0152602B2 JPH0152602B2 (en) | 1989-11-09 |
Family
ID=11629500
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP58006115A Granted JPS58131406A (en) | 1983-01-17 | 1983-01-17 | Control device of compressed air operating actuator |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS58131406A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62107102U (en) * | 1985-12-25 | 1987-07-08 | ||
JPS62108602U (en) * | 1985-12-27 | 1987-07-11 | ||
JP2015090156A (en) * | 2013-11-05 | 2015-05-11 | 株式会社コガネイ | Control valve |
-
1983
- 1983-01-17 JP JP58006115A patent/JPS58131406A/en active Granted
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62107102U (en) * | 1985-12-25 | 1987-07-08 | ||
JPH0419208Y2 (en) * | 1985-12-25 | 1992-04-30 | ||
JPS62108602U (en) * | 1985-12-27 | 1987-07-11 | ||
JPH0419207Y2 (en) * | 1985-12-27 | 1992-04-30 | ||
JP2015090156A (en) * | 2013-11-05 | 2015-05-11 | 株式会社コガネイ | Control valve |
WO2015068413A1 (en) * | 2013-11-05 | 2015-05-14 | 株式会社コガネイ | Control valve |
Also Published As
Publication number | Publication date |
---|---|
JPH0152602B2 (en) | 1989-11-09 |
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