JPS63195404A - Cushion valve device for air cylinder - Google Patents
Cushion valve device for air cylinderInfo
- Publication number
- JPS63195404A JPS63195404A JP2633787A JP2633787A JPS63195404A JP S63195404 A JPS63195404 A JP S63195404A JP 2633787 A JP2633787 A JP 2633787A JP 2633787 A JP2633787 A JP 2633787A JP S63195404 A JPS63195404 A JP S63195404A
- Authority
- JP
- Japan
- Prior art keywords
- valve
- throttle valve
- regulator valve
- air cylinder
- pressure
- 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
- 238000011144 upstream manufacturing Methods 0.000 claims description 8
- 238000010586 diagram Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Landscapes
- Fluid-Pressure Circuits (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は高慣性物をエアシリンダにより高速で移動する
場合におけるエアシリンダのクッション弁装置に関する
。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a cushion valve device for an air cylinder when an object of high inertia is moved at high speed by the air cylinder.
（従来の技術）
この種装置においては例えば第３図に示すように、エア
シリンダ（１）の吸気口（りと排気口（３）とにそれぞ
れコントロールバルブ（４）を接続すると共に吸気通路
（５）にレギュレータ（６）を設けたものや、或は実開
昭５９−１５５３０４号公報で知られる第４図示のもの
、即ちエアシリンダ（１）の排気通路■に所望の設定動
作位置に達したときピストンロッド（１２１のドッグ（
１２ａ ）により切換動作されて該排気通路（７）を閉
じる開閉弁（８）とこれに並列に排気方向側の流れを止
める逆止弁（９）と前記開閉弁（８）の上流側が一定圧
以上の高圧化するとき開かれるリリーフ弁ＯＧとを設け
たものなどが存する。(Prior Art) In this type of device, for example, as shown in FIG. 5) equipped with a regulator (6), or the one shown in Fig. 4 known from Utility Model Application No. 59-155304, that is, the exhaust passage (1) of the air cylinder (1) reaches the desired setting operating position. When the piston rod (121 dog)
12a), an on-off valve (8) which is operated to close the exhaust passage (7), a check valve (9) parallel to this which stops the flow in the exhaust direction, and a constant pressure on the upstream side of the on-off valve (8). There are some types that are equipped with a relief valve OG that is opened when the pressure increases.
（発明が解決しようとする問題点）
しかしながら、前者によるときは吸気通路（５）の圧力
が低下するためピストンのスピードが低下してサイクル
タイムが長くなり、生産ラインのスピードに対応できず
、又後者によるときはリリーフ弁００が開くときにはエ
アーが一気に排気されるためピストンのスピードが加速
されスムーズなりッション動作が得られない等の問題点
を有する。本発明はか）る問題点を解決することを目的
とする。(Problem to be solved by the invention) However, in the former case, the pressure in the intake passage (5) decreases, which reduces the piston speed and increases the cycle time, making it impossible to keep up with the speed of the production line. In the latter case, when the relief valve 00 opens, the air is exhausted all at once, which increases the speed of the piston, resulting in problems such as difficulty in achieving smooth cushioning action. The present invention aims to solve these problems.
（問題点を解決するための手段）
上記の目的を達成するための本発明の構成を実施例に対
、応する第１〜２図を用いて説明すると本発明は、エア
シリンダ（１）の排気通路（７＞に、絞り弁（Ｉｅと、
その上流側に該絞り弁（ｌｅとの間のエア圧を閉じ側に
作用されるレギュレータ弁ａ９とを介設したことを特徴
とする。(Means for Solving the Problems) The structure of the present invention for achieving the above object will be explained with reference to embodiments and corresponding FIGS. In the exhaust passage (7>, there is a throttle valve (Ie),
The present invention is characterized in that a regulator valve a9 that acts to close the air pressure between the throttle valve (le) and the throttle valve (le) is provided on the upstream side thereof.
（作 用）
そして本発明は前記の手段により空気供給源からエアが
供給されるとエアシリンダ（１）内のピストン（Ｉｔ）
は第１図で矢印方向に移動し、このときエアはレギュレ
ータ弁（１９と絞り弁ａｅとを通って大気に放出される
が、スピードが高速となりピストン（ｌｉ）がそのスト
ロークエンドに近ずくと、シリンダ（１）内から排出さ
れるエアが多量となるため、絞り弁０ｅの上流の排気通
路（７）の圧力が上昇し、この上昇圧力がレギュレータ
弁（Ｉｓ）の設定圧力を越えると該レギュレータ弁（１
５１は閉じられるため、該レギュレータ弁ａ９の上流の
排気通路（０の圧力が急上昇してピストン（ｌＩｖにブ
レーキがか）る。しかしながらこの間にも絞り弁ａｅが
らは排気が行なわれているため、レギュレータ弁ａ９と
絞り弁ａｅとの間の圧力が下がり、かくてレギュレータ
弁ａ９の設定圧力より圧力が下がると該レギュレータ弁
ａＳが開き、その上流側に封じ込められていたエアが絞
り弁（Ｉｅに流れ、かくするときは該両弁（１９間のエ
ア圧が再び上昇してレギュレータ弁ａ９が閉じられ、以
上の繰返しによりピストン（Ｉｖのスピードが徐々に減
少され、スムーズなりッション動作が行なわれる。(Function) According to the present invention, when air is supplied from the air supply source by the above-mentioned means, the piston (It) in the air cylinder (1)
moves in the direction of the arrow in Figure 1, and at this time the air passes through the regulator valve (19) and throttle valve ae and is released into the atmosphere, but as the speed increases and the piston (li) approaches its stroke end. Since a large amount of air is discharged from the cylinder (1), the pressure in the exhaust passage (7) upstream of the throttle valve 0e increases, and when this increased pressure exceeds the set pressure of the regulator valve (Is), the Regulator valve (1
51 is closed, the pressure in the exhaust passage (0) upstream of the regulator valve a9 suddenly increases and the piston (lIv is braked). However, since the throttle valve ae is also being exhausted during this time, When the pressure between the regulator valve a9 and the throttle valve ae decreases, and the pressure drops below the set pressure of the regulator valve a9, the regulator valve aS opens, and the air trapped upstream of the regulator valve aS is released to the throttle valve (Ie). When this occurs, the air pressure between the two valves (19) rises again and the regulator valve a9 is closed, and by repeating the above steps, the speed of the piston (Iv) is gradually reduced, resulting in a smooth cushioning operation.
（実施例）
以下本発明の一実施例を第１図について説明すると、（
１）はエアシリンダ、０１）はピストン、６つはピスト
ンロッドを示し、該ロッド（１２には負荷ａ３が取付け
られ、更にエアシリダ（１）の一端の第１エアポート（
２）と他端の第２エアポート（３）とにエア供給弁（１
７１に連なる吸気通路（５）と下流端を大気開放した排
気通路（Ｄとを電磁切換弁（Ｉ＠を介して切換接続自在
とし、該排気通路（７）に絞り弁ａｅと、その上流側に
該絞り弁ａｅとの間のエア圧を閉じ側に作用されるレギ
ュレータ弁（＋５１とを介設した。(Example) An example of the present invention will be described below with reference to FIG.
1) is an air cylinder, 01) is a piston, 6 is a piston rod, a load a3 is attached to the rod (12), and a first air port (1) at one end of the air cylinder (1) is attached to the rod (12).
2) and the second air port (3) at the other end.
The intake passage (5) connected to 71 and the exhaust passage (D) whose downstream end is open to the atmosphere can be freely connected via an electromagnetic switching valve (I@), and the exhaust passage (7) has a throttle valve ae and an exhaust passage (D) whose downstream end is open to the atmosphere. A regulator valve (+51) which acts on the closing side of the air pressure between the throttle valve ae and the throttle valve ae is interposed.
第２図は他の実施例を示すものでピストン（ＩＩ）の両
側の受圧面のピストンロッド（１２１の断面積分の面積
差で起る圧力の差を調整して左右のスピードの釣合いを
とるためピストンｃＵｖにクッション［相］を取付けた
片クッション付シリンダを示す。Figure 2 shows another embodiment, in which the pressure difference caused by the area difference of the cross-sectional area of the piston rod (121) on both sides of the piston (II) is adjusted to balance the left and right speeds. A cylinder with a single cushion is shown in which a cushion [phase] is attached to the piston cUv.
第５図はエアシリンダ（１）のピストンスピードの変化
特性を示し、ａ線が本案実施例、ｂ線が第４図示の従来
例の特性である。FIG. 5 shows the change characteristics of the piston speed of the air cylinder (1), where the a line is the characteristic of the present embodiment and the b line is the characteristic of the conventional example shown in FIG.
従来例では、開閉弁（８）が閉弁されると、リリーフ弁
（ＩＱの上流側の排気通路（７）の内圧が増加してブレ
ーキ作用が得られるが、排気圧の増加で ｄリリーフ弁
（＋１）が開弁されるとエアーが一気に排気されてピス
トンスピードが上り、結局す線の如く段差の大きな段階
的な減速が行なわれる。In the conventional example, when the on-off valve (8) is closed, the internal pressure of the exhaust passage (7) on the upstream side of the relief valve (IQ) increases and a braking action is obtained. When the valve (+1) is opened, air is exhausted all at once and the piston speed increases, resulting in gradual deceleration with large steps as shown in the line.
本発明実施例によれば、ピストンＯｖがスピードを増加
しつつ前進してシリンダ（１）から排気されるエア流口
の増加により絞り弁ａｅの上流側のエア圧がレギュレー
タ弁ａ９の設定圧を上回ると、該弁（１９が閉弁されて
ブレーキ作用が得られ、その後絞り弁、ａｅからの排気
によるレギュレータ弁（＋！ｉ＋の開弁と、開弁による
該両弁ａｓ ｏｅの圧上昇によるレギュレータ弁（＋５
１の閉弁とが短周期で繰返され、ピストンスピードがａ
線の如く連続的に減少し、スムーズな減速が行なわれる
。According to the embodiment of the present invention, as the piston Ov moves forward while increasing its speed, the air pressure on the upstream side of the throttle valve ae increases to the set pressure of the regulator valve a9 due to the increase in the number of air flow ports exhausted from the cylinder (1). When it exceeds the limit, the valve (19) is closed to obtain a braking action, and then the throttle valve and the regulator valve (+! Regulator valve (+5
1 valve closing is repeated in short cycles, and the piston speed increases to a
The speed decreases continuously like a line, resulting in smooth deceleration.
（発明の効果）
以上の如く本発明によるときは、ピストンをスムーズに
減速でき、従来の如く段階的な減速を行なうものに比し
、ピストンロッドやこれに連結する搬送部材に無理な力
が作用せず、良好なりッション動作を得られる効果を有
する。(Effects of the Invention) As described above, according to the present invention, the piston can be decelerated smoothly, and compared to the conventional deceleration which performs stepwise deceleration, unreasonable force is applied to the piston rod and the conveying member connected thereto. This has the effect of providing good cushioning action without any damage.
第１図は本発明の一実施例を示す回路図、第２図は本発
明の他の実施例を示す回路図、第３図及び第４図は従来
例を示す回路図、第５図は特性曲線を示す。
（１）・・・エアシリンダ （７）・・・排気通路
０Ｓ・・・レギュレータ弁 ａＦｊ・・・絞り弁５１
′）ｚる
第１図
第３図 第４図
ビλＬ〉スト口−りFig. 1 is a circuit diagram showing one embodiment of the present invention, Fig. 2 is a circuit diagram showing another embodiment of the invention, Figs. 3 and 4 are circuit diagrams showing a conventional example, and Fig. 5 is a circuit diagram showing another embodiment of the invention. Characteristic curves are shown. (1)... Air cylinder (7)... Exhaust passage 0S... Regulator valve aFj... Throttle valve 51
')Z Figure 1 Figure 3 Figure 4
Claims (1)
絞り弁との間のエア圧を閉じ側に作用されるレギュレー
タ弁とを介設したことを特徴とするエアシリンダのクッ
ション弁装置。1. A cushion valve device for an air cylinder, characterized in that a throttle valve is disposed in an exhaust passage of the air cylinder, and a regulator valve that acts on the upstream side of the throttle valve to close air pressure between the throttle valve and the throttle valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2633787A JPS63195404A (en) | 1987-02-09 | 1987-02-09 | Cushion valve device for air cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2633787A JPS63195404A (en) | 1987-02-09 | 1987-02-09 | Cushion valve device for air cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63195404A true JPS63195404A (en) | 1988-08-12 |
Family
ID=12190623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2633787A Pending JPS63195404A (en) | 1987-02-09 | 1987-02-09 | Cushion valve device for air cylinder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63195404A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH045501U (en) * | 1990-05-02 | 1992-01-20 | ||
| CN103267035A (en) * | 2013-05-31 | 2013-08-28 | 东莞市拓斯普达机械科技有限公司 | Pneumatic device with quick exhaust function |
| CN107932180A (en) * | 2017-12-27 | 2018-04-20 | 济南第机床有限公司 | A kind of digital control lathes pneumatic door switch pneumatic circuit |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5115176A (en) * | 1974-07-29 | 1976-02-06 | Sumitomo Electric Industries | Shasuikozoojusuru gomu purasuchitsukudenryokukeeburuno seizohoho |
| JPS5222677A (en) * | 1975-08-13 | 1977-02-21 | Daiden Kk | Flow quantity control process with pressure compensation |
-
1987
- 1987-02-09 JP JP2633787A patent/JPS63195404A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5115176A (en) * | 1974-07-29 | 1976-02-06 | Sumitomo Electric Industries | Shasuikozoojusuru gomu purasuchitsukudenryokukeeburuno seizohoho |
| JPS5222677A (en) * | 1975-08-13 | 1977-02-21 | Daiden Kk | Flow quantity control process with pressure compensation |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH045501U (en) * | 1990-05-02 | 1992-01-20 | ||
| CN103267035A (en) * | 2013-05-31 | 2013-08-28 | 东莞市拓斯普达机械科技有限公司 | Pneumatic device with quick exhaust function |
| CN103267035B (en) * | 2013-05-31 | 2015-10-14 | 广东拓斯达科技股份有限公司 | There is the Pneumatic actuator of quick exhaust function |
| CN107932180A (en) * | 2017-12-27 | 2018-04-20 | 济南第机床有限公司 | A kind of digital control lathes pneumatic door switch pneumatic circuit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS63195404A (en) | Cushion valve device for air cylinder | |
| CN200955444Y (en) | Diaphragm type stepless cylinder | |
| JPH0567770B2 (en) | ||
| JP5909954B2 (en) | Supercharging assistance system for internal combustion engine, internal combustion engine, and supercharging assistance method for internal combustion engine | |
| JPS626255Y2 (en) | ||
| JPH04287835A (en) | Supercharging pressure controller of turbocharger | |
| JPS6388304A (en) | Piston speed controlling method of air cylinder and control valve thereof | |
| CN214662146U (en) | Pneumatic gate valve | |
| JPH0536608B2 (en) | ||
| JPS5844237A (en) | Valve operation controller for engine | |
| JP2602909Y2 (en) | Turbocharger control device | |
| JPS6016480Y2 (en) | pneumatic press equipment | |
| JP2547331Y2 (en) | External cushion device for pneumatic cylinder | |
| JPS58101218A (en) | Control device of engine supercharger | |
| JPH0285505A (en) | Shockless device for air cylinder | |
| JP2003027950A (en) | Supercharge pressure control device in internal combustion engine provided with supercharger | |
| JPS6142954Y2 (en) | ||
| JPH0311125A (en) | Control of internal combustion engine equipped with exhaust turbine supercharger and device therefor | |
| CN114087244A (en) | Release-blocking oil way based on passive mold opening working condition of press | |
| CN2326390Y (en) | Reversal valve of cross-sliding mechanism of surface grinding machine | |
| JPH0519548Y2 (en) | ||
| JPH0214526B2 (en) | ||
| JPS5924824Y2 (en) | Surging prevention device for engine with exhaust turbo charger | |
| JPH07109173B2 (en) | Supercharging pressure controller for engine with supercharger | |
| JPS60167183U (en) | Capacity adjustment device for oil-free positive displacement rotary compressor |