JPH0281630U - - Google Patents
Info
- Publication number
- JPH0281630U JPH0281630U JP16049188U JP16049188U JPH0281630U JP H0281630 U JPH0281630 U JP H0281630U JP 16049188 U JP16049188 U JP 16049188U JP 16049188 U JP16049188 U JP 16049188U JP H0281630 U JPH0281630 U JP H0281630U
- Authority
- JP
- Japan
- Prior art keywords
- valve
- pressure
- liquid
- suction valve
- discharged
- 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
- 239000007788 liquid Substances 0.000 claims description 5
- 230000007423 decrease Effects 0.000 claims 1
- 230000002265 prevention Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
Description
第１図は本考案の一実施例の回路図、第２図は
その吸引弁の断面図、第３図は本実施例装置を用
いた場合の被吐出液体が吸引される状態をあらわ
すノズルの断面図、第４図は圧力室内の圧力と流
通室の容積との関係をあらわすグラフであり、第
５図は従来装置を用いた場合の液だれを生じる状
態をあらわすノズルの断面図である。
１：タンク、８：ノズル、９：開閉弁、１０：
制御装置、１２：吸引弁、１６，２３：ダイヤフ
ラム、１８：流通室、２２：圧力室、３１：電空
比例弁、Ｌ：被吐出液体。
Fig. 1 is a circuit diagram of an embodiment of the present invention, Fig. 2 is a sectional view of its suction valve, and Fig. 3 is a nozzle showing the state in which the liquid to be ejected is sucked when the device of this embodiment is used. The sectional view, FIG. 4, is a graph showing the relationship between the pressure in the pressure chamber and the volume of the flow chamber, and FIG. 5 is a sectional view of the nozzle, showing a state in which dripping occurs when a conventional device is used. 1: Tank, 8: Nozzle, 9: Open/close valve, 10:
Control device, 12: Suction valve, 16, 23: Diaphragm, 18: Distribution chamber, 22: Pressure chamber, 31: Electropneumatic proportional valve, L: Liquid to be discharged.
Claims (1)
液体を吐出させるノズルとの間に開閉弁を介設す
るとともに、該開閉弁と前記ノズルとの間に、被
吐出液体が流通する流通室の容積が該流通室とダ
イヤフラムによつて仕切られた圧力室に供給され
るパイロツトエアの圧力によつて増減する吸引弁
を介設し、該吸引弁に、通電されるパイロツト電
流の電圧値または電流値に略比例する圧力の前記
パイロツトエアを該吸引弁に供給する電空比例弁
を接続し、該電空比例弁を、前記パイロツト電流
の制御と前記開閉弁の開閉の制御とを互いに独立
させて行う制御装置に接続したことを特徴とする
液だれ防止装置。 An on-off valve is interposed between a pressure feeding source of the liquid to be discharged and a nozzle that opens downward and discharges the liquid to be discharged, and a circulation chamber in which the liquid to be discharged flows between the on-off valve and the nozzle. A suction valve whose volume increases or decreases depending on the pressure of pilot air supplied to a pressure chamber partitioned from the circulation chamber by a diaphragm is provided, and the suction valve has a voltage value or a value of the pilot current supplied to the suction valve. An electro-pneumatic proportional valve is connected to supply the pilot air at a pressure substantially proportional to the current value to the suction valve, and the electro-pneumatic proportional valve controls the pilot current and the opening/closing of the on-off valve independently of each other. A drip prevention device characterized in that it is connected to a control device that controls the dripping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16049188U JPH059074Y2 (en) | 1988-12-09 | 1988-12-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16049188U JPH059074Y2 (en) | 1988-12-09 | 1988-12-09 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0281630U true JPH0281630U (en) | 1990-06-25 |
| JPH059074Y2 JPH059074Y2 (en) | 1993-03-05 |
Family
ID=31442600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16049188U Expired - Lifetime JPH059074Y2 (en) | 1988-12-09 | 1988-12-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH059074Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11333359A (en) * | 1998-05-27 | 1999-12-07 | Tokyo Electron Ltd | Formation of coating film |
| JP2004138178A (en) * | 2002-10-18 | 2004-05-13 | Ckd Corp | Fluid supply controller |
-
1988
- 1988-12-09 JP JP16049188U patent/JPH059074Y2/ja not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11333359A (en) * | 1998-05-27 | 1999-12-07 | Tokyo Electron Ltd | Formation of coating film |
| JP2004138178A (en) * | 2002-10-18 | 2004-05-13 | Ckd Corp | Fluid supply controller |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH059074Y2 (en) | 1993-03-05 |
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