JPH095149A - Liquid quantity metering apparatus - Google Patents
Liquid quantity metering apparatusInfo
- Publication number
- JPH095149A JPH095149A JP19096895A JP19096895A JPH095149A JP H095149 A JPH095149 A JP H095149A JP 19096895 A JP19096895 A JP 19096895A JP 19096895 A JP19096895 A JP 19096895A JP H095149 A JPH095149 A JP H095149A
- Authority
- JP
- Japan
- Prior art keywords
- valve
- switching valve
- air
- closing
- liquid
- 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
Landscapes
- Weight Measurement For Supplying Or Discharging Of Specified Amounts Of Material (AREA)
- Fluid-Driven Valves (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、各種の液体を任意の設
定量に反復して計量する空気式の液体定量計量装置に関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pneumatic liquid quantitative measuring device for repeatedly measuring various kinds of liquids at arbitrary set amounts.
【０００２】[0002]
【従来の技術】従来、空気式の液体定量計量装置として
は、図２に示す構成のものがある。この装置ではプリセ
ットカウンタ５を付設した流量計３および開閉用シリン
ダ４ａを装着した自動開閉弁４が配管２中に取付けられ
ており、空気源８に接続された計量開始弁１１の作動に
より自己保持型の補助切換弁９０を作動させて主切換弁
７を切換え、前記開閉用シリンダ４ａに開作動方向の圧
力空気を供給して自動開閉弁４を開き、配管２の被測液
体を所定場所に供給する空気回路が設けられている。ま
た、前記プリセットカウンタ５には常時遮断状態にある
マイクロバルブ６が付設されており、このプリセットカ
ウンタ５からの信号によりマイクロバルブ６が作動する
時、連通状態となって、前記補助切換弁９０のパイロッ
ト部９０ａにシャトル弁１０を介して空気源８からの圧
力空気を供給するように接続されている。この液体定量
計量装置では、計量開始弁１１の作動により補助切換弁
９０が切換えられて自動開閉弁４が開放され、被測液体
の定量計量が開始される。これにともない、流量計３が
被測液体の流量を計測し、その流量がプリセットカウン
タ５の設定値に達するとマイクロバルブ６に信号が送ら
れてマイクロバルブ６が作動し、連通状態となる。これ
により、補助切換弁９０のパイロット部９０ａに圧力空
気が供給され、補助切換弁９０が復動して、主切換弁７
のパイロット部７ａへの圧力空気の供給が遮断される。
そのため、主切換弁７は復動して自動開閉弁４の開閉用
シリンダ４ａに閉作動方向の空気が供給され、自動開閉
弁４が閉止して定量計量が確実に行われる。2. Description of the Related Art Conventionally, a pneumatic liquid quantitative measuring device has a structure shown in FIG. In this device, a flow meter 3 equipped with a preset counter 5 and an automatic opening / closing valve 4 equipped with an opening / closing cylinder 4a are mounted in a pipe 2, and self-holding is performed by the operation of a metering start valve 11 connected to an air source 8. The mold type auxiliary switching valve 90 is operated to switch the main switching valve 7, pressurized air in the opening operation direction is supplied to the opening / closing cylinder 4a to open the automatic opening / closing valve 4, and the liquid to be measured in the pipe 2 is placed at a predetermined location. A supply air circuit is provided. Further, the preset counter 5 is provided with a micro valve 6 which is always in a shut-off state. When the micro valve 6 is activated by a signal from the preset counter 5, the preset counter 5 is in a communicating state and the auxiliary switching valve 90 It is connected to the pilot portion 90a via the shuttle valve 10 so as to supply the pressurized air from the air source 8. In this liquid quantitative metering device, the auxiliary switching valve 90 is switched by the operation of the metering start valve 11, the automatic opening / closing valve 4 is opened, and the quantitative measurement of the liquid to be measured is started. Along with this, the flow meter 3 measures the flow rate of the liquid to be measured, and when the flow rate reaches the set value of the preset counter 5, a signal is sent to the micro valve 6 to operate the micro valve 6 and establish a communication state. As a result, pressurized air is supplied to the pilot portion 90a of the auxiliary switching valve 90, the auxiliary switching valve 90 returns, and the main switching valve 7
The supply of the pressurized air to the pilot section 7a is cut off.
Therefore, the main switching valve 7 is moved back to supply air in the closing operation direction to the opening / closing cylinder 4a of the automatic opening / closing valve 4, and the automatic opening / closing valve 4 is closed to reliably perform the quantitative measurement.
【０００３】[0003]
【発明が解決しようとする課題】この液体定量計量装置
では、計量中に停電または異常により空気源８の圧力空
気が著しく低下して主切換弁９０のパイロット部９０ａ
を押圧する力が弱くなった場合、主切換弁７は自己復帰
により復動し、開閉用シリンダ４ａに閉方向の空気を供
給する状態に復帰する。この時、配管中の緊急遮断弁
（図示せず）が作動するものの自動開閉弁４は低下した
圧力空気の圧力に応じて閉まった状態となるか、または
開いたままの状態となる。この状態で、空気源８が復旧
して圧力空気の圧力が所定圧力に戻り、緊急遮断弁が開
放されれると、補助切換弁９０は作動状態が自己保持さ
れているため、主切換弁７のパイロット部７ａに圧力空
気が供給される。そのため、主切換弁７が再作動して、
開閉用シリンダ４ａに開作動方向の空気が供給されて自
動開閉弁４が開き、再び配管２の被測液体が流れる。こ
の時、配管２に異常があって点検のために配管２を取外
していれば被測液体が作業員に触れたり、タンクから溢
れ出たりする危険があり、これらの危険を解消した安全
性の高い液体定量計量装置が要望されている。In this liquid quantitative metering device, the pressure air of the air source 8 is remarkably reduced due to a power failure or abnormality during metering, and the pilot portion 90a of the main switching valve 90 is reduced.
When the force for pressing is weakened, the main switching valve 7 returns by self-returning and returns to the state of supplying air in the closing direction to the opening / closing cylinder 4a. At this time, although the emergency shutoff valve (not shown) in the pipe operates, the automatic on-off valve 4 is closed or remains open depending on the pressure of the reduced pressure air. In this state, when the air source 8 is restored and the pressure of the compressed air returns to the predetermined pressure, and the emergency shutoff valve is opened, the auxiliary switching valve 90 maintains its operating state by itself, so that the main switching valve 7 is operated. Compressed air is supplied to the pilot portion 7a. Therefore, the main switching valve 7 is activated again,
Air in the opening operation direction is supplied to the opening / closing cylinder 4a to open the automatic opening / closing valve 4, and the liquid to be measured in the pipe 2 flows again. At this time, if the pipe 2 is abnormal and the pipe 2 is removed for inspection, there is a risk that the liquid to be measured may come into contact with the worker or overflow from the tank. There is a need for a high liquid metering device.
【０００４】本発明は上記要望に鑑み発明されたもの
で、定量計量中に空気源の圧力空気の圧力低下があって
も安全に計量作業が再開することができる液体定量計量
装置を提供しようとするものである。The present invention has been made in view of the above demands, and an object of the present invention is to provide a liquid quantitative measuring device capable of safely restarting the measuring work even if the pressure of the air source drops during the quantitative measurement. To do.
【０００５】[0005]
【課題を解決するための手段】被測液体が流れる配管中
にプリセットカウンタを付設した流量計および自動開閉
弁を配設し、この自動開閉弁の開閉用シリンダに主切換
弁を介して空気源を接続するとともに主切換弁のパイロ
ット部に補助切換弁を介して空気源を接続した空気回路
を設ける一方、プリセットカウンタにマイクロバルブを
付設し、このマイクロバルブを前記空気回路に配置し、
計量開始弁により補助切換弁を切換えて自動開閉弁を開
放し、プリセットカウンタの信号によりマイクロバルブ
を作動させて補助切換弁を復動させ、自動開閉弁を閉止
して被測液体の定量計量を行う液体定量計量装置におい
て、補助切換弁を自動復帰型とし、そのパイロット部に
シャトル弁を介して計量開始弁の作動により供給される
圧力空気と、補助切換弁の作動により供給される圧力空
気とのいずれかを供給する空気回路を設けている。A flow meter equipped with a preset counter and an automatic opening / closing valve are arranged in a pipe through which a liquid to be measured flows, and an air source is provided in an opening / closing cylinder of the automatic opening / closing valve via a main switching valve. While providing an air circuit connected to the pilot source of the main switching valve to the air source via the auxiliary switching valve, a micro valve is attached to the preset counter, and the micro valve is arranged in the air circuit.
The auxiliary switching valve is switched by the metering start valve to open the automatic opening / closing valve, the micro valve is operated by the signal of the preset counter to return the auxiliary switching valve, and the automatic opening / closing valve is closed to quantitatively measure the liquid to be measured. In the liquid quantitative measuring device to be performed, the auxiliary switching valve is of an automatic reset type, and the pilot unit has pressure air supplied by the operation of the metering start valve via the shuttle valve and pressure air supplied by the operation of the auxiliary switching valve. An air circuit for supplying either of the above is provided.
【０００６】[0006]
【作用】上記液体定量計量装置では、プリセットカウン
タ内のマイクロバルブを連通状態にした後、計量開始弁
の作動により補助切換弁が切換わり、続いて主切換弁が
切換わる。そのため、自動開閉弁の開閉シリンダに空気
源から圧力空気が供給されて、自動開閉弁が開放され、
配管内の被測液体が所定場所に供給される。同時に、配
管内の被測液体が流量計により計測され、その流量があ
らかじめ設定された設定値に達すると、プリセットカウ
ンタが作動してマイクロバルブに信号が送られ、マイク
ロバルブを遮断状態とする。そのため、マイクロバルブ
を通じて補助切換弁のパイロット部に送られていた圧力
空気が遮断されて補助切換弁が自動復帰し、続いて主切
換弁が自動復帰し、これにより開閉シリンダに閉作動方
向の圧力空気が供給されて自動開閉弁が閉じ、定量計量
作業が完了する。In the above liquid quantitative measuring device, the micro-valve in the preset counter is made to communicate with each other, the auxiliary switching valve is switched by the operation of the metering start valve, and then the main switching valve is switched. Therefore, pressurized air is supplied from the air source to the open / close cylinder of the automatic open / close valve, and the automatic open / close valve is opened.
The liquid to be measured in the pipe is supplied to a predetermined place. At the same time, the liquid to be measured in the pipe is measured by the flow meter, and when the flow rate reaches a preset set value, the preset counter operates and a signal is sent to the micro valve, and the micro valve is shut off. Therefore, the pressure air sent to the pilot section of the auxiliary switching valve through the microvalve is shut off, the auxiliary switching valve automatically returns, and then the main switching valve automatically returns. Air is supplied and the automatic on-off valve closes, and the quantitative weighing work is completed.
【０００７】この間、停電等何らかの原因で空気源の圧
力空気の圧力が低下すると、切換わった状態にある補助
切換弁、主切換弁が自動復帰する。そのため、自動開閉
弁の開閉シリンダには自動開閉弁を閉止する閉作動方向
の圧力空気が供給されるが、この圧力空気の圧力に応じ
て自動開閉弁は閉じた状態あるいは開いたままの状態と
なる。この時、緊急遮断弁が作動して被測液体の供給が
停止されるが、その後に空気源の圧力空気が所定圧力に
復帰すると、この時にはすでに補助切換弁が自動復帰し
ているため、空気源からの圧力空気は主切換弁のパイロ
ット部に供給されず、主切換弁は自動復帰した状態に保
持される。また、自動開閉弁には閉作動方向の圧力空気
が供給されるので、自動開閉弁は閉じることとなり、空
気源の復旧にともなって配管内の液体が流れ出すような
ことは皆無となる。During this period, if the pressure of the air from the air source drops for some reason such as a power failure, the auxiliary switching valve and the main switching valve in the switched state are automatically restored. Therefore, the opening / closing cylinder of the automatic opening / closing valve is supplied with pressure air in the closing operation direction for closing the automatic opening / closing valve, and the automatic opening / closing valve is closed or opened depending on the pressure of the pressure air. Become. At this time, the emergency shutoff valve operates and the supply of the liquid to be measured is stopped.However, when the pressure of the air source returns to the predetermined pressure after that, the auxiliary switching valve has already been automatically restored at this time, so the air The pressurized air from the source is not supplied to the pilot part of the main switching valve, and the main switching valve is kept in the automatically restored state. Further, since the pressurized air in the closing operation direction is supplied to the automatic opening / closing valve, the automatic opening / closing valve is closed, and the liquid in the pipe never flows out when the air source is restored.
【０００８】[0008]
【実施例】以下、図面に基き本発明の一実施例を説明す
る。図１において、１は被測液体が流れる配管２に配置
された液体定量計量装置である。この液体定量計量装置
１は配管２中に取付けられた流量計３および開閉用シリ
ンダ４ａを装着した自動開閉弁４を有しており、この流
量計３にはブリセットカウンタ５が付設されている。ま
た、前記プリセットカウンタ５には空気式のマイクロバ
ルブ６が組付けてあり、このマイクロバルブ６はプリセ
ットカウンタ５の設定時に作動レバー６ａが押圧されて
後記する第２の空気回路を連通させるように構成されて
いる。また、前記マイクロバルブ６の作動レバー６ａ
は、被測液体の流量がプリセットカウンタ５の設定値に
達するとプリセットカウンタ５からの信号により復帰し
て遮断状態となり、これが組込まれた第２の空気回路を
遮断する構成になっている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. In FIG. 1, reference numeral 1 is a liquid quantitative measuring device arranged in a pipe 2 through which a liquid to be measured flows. This liquid quantitative measuring device 1 has a flow meter 3 mounted in a pipe 2 and an automatic opening / closing valve 4 equipped with an opening / closing cylinder 4a, and a bleeder counter 5 is attached to the flow meter 3. . Further, a pneumatic microvalve 6 is assembled to the preset counter 5, and the microvalve 6 presses the operating lever 6a when the preset counter 5 is set so that the second pneumatic circuit described later can be communicated. It is configured. Also, the operating lever 6a of the microvalve 6
When the flow rate of the liquid to be measured reaches the preset value of the preset counter 5, the signal is returned from the preset counter 5 to be in the cutoff state, and the second air circuit incorporating this is cut off.
【０００９】一方、前記自動開閉弁４の開閉用シリンダ
４ａは主切換弁７を介して空気源８に接続してあり、主
切換弁７が切換えられることにより自動開閉弁４を開閉
する第１の空気回路が構成されている。また、前記主切
換弁７のパイロット部７ａは補助切換弁９に接続されて
おり、この補助切換弁９のパイロット部９ａにはシャト
ル弁１０を介して空気源８に接続された計量開始弁１１
と前記主切換弁７のパイロット部７ａに接続されたマイ
クロバルブ６の一端とが接続されており、計量開始弁１
１の作動後これが自動復帰しても圧力空気を補助切換弁
９のパイロット部９ａに供給して作動状態を保持する第
２の空気回路が構成されている。さらに、前記マイクロ
バルブ６とシャトル弁１０との間にはストップ用切換弁
１２が接続されており、このストップ用切換弁１２を作
動させて開放すると、補助切換弁７および主切換弁７の
パイロット部７ａへの圧力空気の供給が遮断され、主切
換弁７が復動して自動開閉弁４が閉じるように構成され
ている。On the other hand, the opening / closing cylinder 4a of the automatic opening / closing valve 4 is connected to the air source 8 via the main switching valve 7, and the first opening / closing valve 4 is opened / closed by switching the main switching valve 7. The air circuit of is configured. Further, the pilot portion 7a of the main switching valve 7 is connected to the auxiliary switching valve 9, and the pilot portion 9a of the auxiliary switching valve 9 is connected to the air source 8 via the shuttle valve 10 and the metering start valve 11 is connected.
Is connected to one end of the micro valve 6 connected to the pilot portion 7a of the main switching valve 7, and the metering start valve 1
A second air circuit is configured to supply pressurized air to the pilot portion 9a of the auxiliary switching valve 9 to maintain the operating state even if it is automatically restored after the operation of 1. Further, a stop switching valve 12 is connected between the micro valve 6 and the shuttle valve 10. When the stop switching valve 12 is activated and opened, the auxiliary switching valve 7 and the main switching valve 7 are piloted. The supply of the pressurized air to the portion 7a is cut off, the main switching valve 7 is returned, and the automatic opening / closing valve 4 is closed.
【００１０】この構成による液体定量計量装置の動作を
説明する。まず所定の圧力を持つ圧力空気を供給する空
気源８を作動させ、次にプリセットカウンタ５によって
所望の被測液体の設定値を設定した後、マイクロバルブ
６の作動レバー６ａを作動させ、マイクロバルブ６を導
通状態に保持する。この状態において、計量開始弁１１
を押圧操作すると、空気源８の圧力空気はシャトル弁１
０の作用により補助切換弁９のパイロット部９ａに供給
され、補助切換弁８が切換えられる。これにより空気源
８の圧力空気が主切換弁７のパイロット部７ａに供給さ
れ、主切換弁７が切換わって圧力空気が自動開閉弁４の
開閉用シリンダ４ａの開作動方向に供給されて自動開閉
弁４が開く。同時に、プリセットカウンタ５のマイクロ
バルブ６に供給される圧力空気は計量開始弁１１が自動
復帰して後にシャトル弁１０を介して補助切換弁９のパ
イロット部９ａに供給され、補助切換弁９を切換えた状
態に保持することができる。The operation of the liquid quantitative measuring device having this structure will be described. First, the air source 8 that supplies pressurized air having a predetermined pressure is operated, and then the preset counter 5 sets a desired set value of the liquid to be measured, and then the operation lever 6a of the microvalve 6 is operated to operate the microvalve. Hold 6 in conduction. In this state, the metering start valve 11
When pressing the button, the pressurized air from the air source 8
By the action of 0, it is supplied to the pilot portion 9a of the auxiliary switching valve 9, and the auxiliary switching valve 8 is switched. As a result, the pressure air from the air source 8 is supplied to the pilot portion 7a of the main switching valve 7, the main switching valve 7 is switched, and the pressure air is supplied in the opening operation direction of the opening / closing cylinder 4a of the automatic opening / closing valve 4 and automatically. The on-off valve 4 opens. At the same time, the pressure air supplied to the micro valve 6 of the preset counter 5 is supplied to the pilot portion 9a of the auxiliary switching valve 9 via the shuttle valve 10 after the metering start valve 11 automatically returns, and the auxiliary switching valve 9 is switched. Can be kept in a closed state.
【００１１】この状態で、配管２中の被測液体が所定場
所に供給されると、その被測液体の流量が流量計３によ
り計測され、この流量がプリセットカウンタ５の設定値
に達すると、プリセットカウンタ５から信号がマイクロ
バルブ６に送られ、マイクロバルブ６の作動レバー６ａ
が復帰して、マイクロバルブ６を遮断状態にする。その
ため、補助切換弁９のパイロット部９ａへの圧力空気の
供給が停止し、補助切換弁９、主切換弁７が続いて自動
復帰する。従って、自動開閉弁４の開閉用シリンダ４ａ
の閉作動方向に圧力空気が供給され、自動開閉弁４が閉
止されて定量計量作業が完了する。In this state, when the liquid to be measured in the pipe 2 is supplied to a predetermined place, the flow rate of the liquid to be measured is measured by the flow meter 3, and when this flow amount reaches the preset value of the preset counter 5, A signal is sent from the preset counter 5 to the microvalve 6, and the operating lever 6a of the microvalve 6 is activated.
Returns to turn off the microvalve 6. Therefore, the supply of the pressurized air to the pilot portion 9a of the auxiliary switching valve 9 is stopped, and the auxiliary switching valve 9 and the main switching valve 7 are subsequently automatically restored. Therefore, the opening / closing cylinder 4a of the automatic opening / closing valve 4
The pressurized air is supplied in the closing operation direction, the automatic on-off valve 4 is closed, and the quantitative measurement work is completed.
【００１２】この間、停電等何らかの原因で空気源８の
圧力空気の圧力が低下すると、補助切換弁９、主切換弁
７が自動復帰するが、自動開閉弁４はその時の圧力空気
の圧力に応じて閉じた状態あるいは開いたままの状態と
なる。この時、緊急遮断弁（図示せず）が作動して配管
２内の被測液体の供給が停止するが、その後に空気源８
が復旧して圧力空気が所定圧力に復帰すると、すでに補
助切換弁９が自動復帰しているので、空気源８からの圧
力空気は主切換弁７のパイロット部７ａに供給されず、
主切換弁７は復帰した状態に保持され、再作動しない。
また、圧力空気の復旧にともなって、前記自動開閉弁４
にはこれを閉止する方向の圧力空気が供給されるので、
自動開閉弁４は閉止し、空気源８の復旧にともなって配
管２内の被測液体が流れ出すようなことは皆無となる。During this time, if the pressure of the compressed air from the air source 8 drops for some reason such as a power failure, the auxiliary switching valve 9 and the main switching valve 7 automatically return, but the automatic opening / closing valve 4 responds to the pressure of the compressed air at that time. Closed or open. At this time, the emergency shutoff valve (not shown) operates to stop the supply of the liquid to be measured in the pipe 2, but after that, the air source 8
Is restored and the pressure air returns to the predetermined pressure, the auxiliary switching valve 9 has already been automatically restored, so the pressure air from the air source 8 is not supplied to the pilot portion 7a of the main switching valve 7,
The main switching valve 7 is kept in the restored state and does not operate again.
Also, with the restoration of the pressure air, the automatic on-off valve 4
Is supplied with pressurized air in the direction to close it,
The automatic opening / closing valve 4 is closed, and when the air source 8 is restored, the measured liquid in the pipe 2 never flows out.
【００１３】[0013]
【発明の効果】以上の説明で明らかなように本発明は、
被測液体の配管中にプリセットカウンタを付設した流量
計と開閉用シリンダを有する自動開閉弁とを配置し、こ
の開閉用シリンダに主切換弁を介して空気源を接続し、
さらに主切換弁のパイロット部に自動復帰型の補助切換
弁を介して空気源を接続する一方、作業開始弁の作動に
より補助切換弁のパイロット部に空気源からの圧力空気
を供給するとともに補助切換弁から供給される圧力空気
を自身のパイロット部に供給するように構成している。
そのため、自動開閉弁が開いた状態で空気源の故障等に
より圧力空気の圧力が低下して主切換弁が復動しても、
その時の圧力空気の圧力によっては自動開閉弁は開いた
状態に保持されることもあるが、空気源が復旧して圧力
空気の圧力が上昇すると、ただちに自動開閉弁が閉止状
態となる。従って、本発明では主切換弁が再作動するよ
うなこともなく、配管中の被測液体が突然に流れ出すよ
うなことは皆無となり、配管点検中の作業者に被測液体
が触れるようなことがないばかりか、供給先のタンクか
ら被測液体が溢れ出る等の危険を防ぐことができ、安全
性の向上が図れる。As is apparent from the above description, the present invention is
A flowmeter equipped with a preset counter and an automatic opening / closing valve having an opening / closing cylinder are arranged in the pipe of the liquid to be measured, and an air source is connected to this opening / closing cylinder via a main switching valve,
Furthermore, while the air source is connected to the pilot section of the main switching valve via the automatic return type auxiliary switching valve, the work start valve is operated to supply pressurized air from the air source to the pilot section of the auxiliary switching valve and to perform the auxiliary switching. The pressure air supplied from the valve is configured to be supplied to its own pilot section.
Therefore, even if the pressure of the pressurized air drops and the main switching valve moves back due to a failure of the air source or the like with the automatic opening / closing valve open,
The automatic open / close valve may be held in an open state depending on the pressure of the pressurized air at that time, but when the air source is restored and the pressure of the pressurized air rises, the automatic open / close valve is immediately closed. Therefore, in the present invention, the main switching valve does not re-operate, the liquid to be measured in the pipe does not suddenly flow out, and the liquid to be measured touches the worker who is inspecting the pipe. In addition to the above, it is possible to prevent the risk that the liquid to be measured overflows from the tank of the supply destination, and improve the safety.
【図面の簡単な説明】[Brief description of drawings]
【図１】本発明の定量計量装置の概略構成図である。FIG. 1 is a schematic configuration diagram of a quantitative weighing device of the present invention.
【図２】従来の定量計量装置の概略構成図である。FIG. 2 is a schematic configuration diagram of a conventional quantitative weighing device.
１ 液体定量計量装置 ２ 配管 ３ 流量計 ４ 自動開閉弁 ４ａ 開閉用シリンダ ５ プリセットカウンタ ６ マイクロバルブ ６ａ 作動レバー ７ 主切換弁 ７ａ パイロット部 ８ 空気源 ９， ９０ 補助切換弁 ９ａ，９０ａ パイロット部 １０ シャトル弁 １１ 計量開始弁 １２ ストップ用切換弁 1 Liquid quantitative measuring device 2 Piping 3 Flow meter 4 Automatic opening / closing valve 4a Opening / closing cylinder 5 Preset counter 6 Micro valve 6a Operating lever 7 Main switching valve 7a Pilot part 8 Air source 9, 90 Auxiliary switching valve 9a, 90a Pilot part 10 Shuttle Valve 11 Metering start valve 12 Stop switching valve
Claims (1)
ンタを付設した流量計および自動開閉弁を配設し、この
自動開閉弁の開閉用シリンダに主切換弁を介して空気源
を接続するとともに主切換弁のパイロット部に補助切換
弁を介して空気源を接続した空気回路を設ける一方、プ
リセットカウンタにマイクロバルブを付設し、このマイ
クロバルブを前記空気回路に配置し、計量開始弁により
補助切換弁を切換えて自動開閉弁を開放し、プリセット
カウンタの信号によりマイクロバルブを作動させて補助
切換弁を復動させ、自動開閉弁を閉止して被測液体の定
量計量を行う液体定量計量装置において、 補助切換弁を自動復帰型とし、そのパイロット部にシャ
トル弁を介して計量開始弁の作動により供給される圧力
空気と、補助切換弁の作動により供給される圧力空気と
のいずれかを供給する空気回路を設けたことを特徴とす
る液体定量計量装置。1. A flow meter equipped with a preset counter and an automatic opening / closing valve are arranged in a pipe through which a liquid to be measured flows, and an air source is connected to an opening / closing cylinder of the automatic opening / closing valve via a main switching valve. The pilot section of the main switching valve is provided with an air circuit to which an air source is connected via an auxiliary switching valve, while a micro valve is attached to the preset counter, this micro valve is placed in the air circuit, and auxiliary switching is performed by the metering start valve. A liquid quantitative metering device that switches the valve to open the automatic opening / closing valve, operates the micro valve according to the signal of the preset counter to return the auxiliary switching valve, and closes the automatic opening / closing valve to quantitatively measure the liquid to be measured. , The auxiliary switching valve is an automatic return type, and the pressure air supplied by the operation of the metering start valve via the shuttle valve to the pilot part and the operation of the auxiliary switching valve A liquid quantitative measuring device, characterized in that an air circuit for supplying either of the compressed air supplied by the liquid metering device is provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP07190968A JP3091671B2 (en) | 1995-06-21 | 1995-06-21 | Liquid metering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP07190968A JP3091671B2 (en) | 1995-06-21 | 1995-06-21 | Liquid metering device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH095149A true JPH095149A (en) | 1997-01-10 |
| JP3091671B2 JP3091671B2 (en) | 2000-09-25 |
Family
ID=16266682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP07190968A Expired - Lifetime JP3091671B2 (en) | 1995-06-21 | 1995-06-21 | Liquid metering device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3091671B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6123412B2 (en) * | 2013-03-27 | 2017-05-10 | 株式会社ワコール | Clothing and flexible parts |
-
1995
- 1995-06-21 JP JP07190968A patent/JP3091671B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP3091671B2 (en) | 2000-09-25 |
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