JPH0655132A - Controlling method for flow rate of coating - Google Patents
Controlling method for flow rate of coatingInfo
- Publication number
- JPH0655132A JPH0655132A JP21246892A JP21246892A JPH0655132A JP H0655132 A JPH0655132 A JP H0655132A JP 21246892 A JP21246892 A JP 21246892A JP 21246892 A JP21246892 A JP 21246892A JP H0655132 A JPH0655132 A JP H0655132A
- Authority
- JP
- Japan
- Prior art keywords
- liquid
- paint
- flow rate
- valve
- coating
- 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.)
- Withdrawn
Links
Landscapes
- Nozzles (AREA)
- Spray Control Apparatus (AREA)
- Flow Control (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
(57)【要約】
【目的】 高精度の流量制御が可能な塗料の流量制御方
法を提供する。
【構成】 塗装ガンに塗料を供給する配管に液体で作動
する液−液バルブを設け、この液−液バルブにより塗料
ガンに供給する塗料の流量を制御するようにしたもので
ある。
(57) [Abstract] [Purpose] To provide a paint flow rate control method capable of highly accurate flow rate control. [Structure] A liquid-liquid valve that is operated by a liquid is provided in a pipe for supplying the paint to the coating gun, and the flow rate of the paint supplied to the coating gun is controlled by the liquid-liquid valve.
Description
【0001】[0001]
【産業上の利用分野】本発明は、塗装ガンに供給する塗
料の流量を制御する塗料の流量制御方法に関するもので
ある。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paint flow rate control method for controlling the flow rate of paint supplied to a coating gun.
【0002】[0002]
【従来の技術】一般に、自動車等の車体は、塗装工程に
供されるが、この塗装工程においては、塗装ガンを備え
た自動塗装機が用いられることがある。2. Description of the Related Art Generally, a vehicle body of an automobile or the like is subjected to a painting process. In this painting process, an automatic painting machine equipped with a painting gun is sometimes used.
【0003】この自動塗装機にあっては、塗装工程に搬
送されてくる車体に向けて塗装ガンから一定量の塗料を
噴霧させて塗布するようになっている。In this automatic coating machine, a certain amount of coating material is sprayed from a coating gun and applied to the vehicle body conveyed in the coating process.
【0004】従来、前記自動塗装機においては、下記の
方法で塗装ガンへの塗料の流量制御を行っている。Conventionally, in the automatic coating machine, the flow rate of the coating material to the coating gun is controlled by the following method.
【0005】即ち、図2に示すように、塗料供給装置
(図示せず)から塗装ガン(1)に塗料を供給する塗料
配管(2)の途中にエアーで作動する空−液バルブ
(3)を設け、この空−液バルブ(3)にエアー供給装
置(図示せず)からエアーを供給するエアー配管(4)
を接続し、このエアー配管(4)の途中に電磁気で作動
する電−空レギュレター(5)を設け、この電−空レギ
ュレター(5)にこれをコントロールするCPU(6)
を接続し、このCPU(6)に塗料配管(2)の塗装ガ
ン(1)と空−液バルブ(3)との間に設けられて塗装
ガン(1)に供給される塗料の流量を検出する流量セン
サー(7)を接続してあり、CPU(6)により流量セ
ンサー(7)の流量検出値に基づいて電−空レギュレタ
ー(5)をコントロールしてエアー配管(4)のエアー
の圧力を制御し、このエアーの圧力に応じて空−液バル
ブ(3)を作動して塗料の流量を制御するようにしてい
る。That is, as shown in FIG. 2, an air-liquid valve (3) operated by air in the middle of a paint pipe (2) for supplying paint from a paint supply device (not shown) to the coating gun (1). And an air pipe (4) for supplying air to the air-liquid valve (3) from an air supply device (not shown).
And an electro-pneumatic regulator (5) that operates electromagnetically is provided in the middle of the air pipe (4), and the electro-pneumatic regulator (5) controls the CPU (6).
The CPU (6) is connected to the CPU (6) to detect the flow rate of the paint supplied to the paint gun (1) provided between the paint gun (1) of the paint pipe (2) and the empty-liquid valve (3). A flow rate sensor (7) is connected, and the CPU (6) controls the electro-pneumatic regulator (5) based on the flow rate detection value of the flow rate sensor (7) to control the air pressure in the air pipe (4). The flow rate of the paint is controlled by controlling the air-liquid valve (3) according to the pressure of the air.
【0006】[0006]
【発明が解決しようとする課題】上記したように、従来
の塗料の流量制御方法は、エアーで作動する空−液バル
ブ(3)により塗料の流量制御が行われておるが、空−
液バルブ(3)を作動するエアーには圧縮性があるた
め、応答遅れやマークレット変動等が生じ、微妙な流量
制御が困難であるという問題があった。As described above, in the conventional paint flow rate control method, the flow rate of the paint is controlled by the air-operated air-liquid valve (3).
Since the air that operates the liquid valve (3) has compressibility, response delay and marklet fluctuations occur, which makes it difficult to control the flow rate delicately.
【0007】本発明は上記課題に鑑みてなされたもの
で、その目的とするところは、高精度の流量制御が可能
な塗料の流量制御方法を提供することにある。The present invention has been made in view of the above problems, and an object of the present invention is to provide a paint flow rate control method capable of highly accurate flow rate control.
【0008】[0008]
【課題を解決するための手段】本発明は上記目的を達成
するため、塗装ガンに塗料を供給する配管に液体で作動
する液−液バルブを設け、この液−液バルブにより塗料
ガンに供給する塗料の流量を制御するようにしたもので
ある。In order to achieve the above object, the present invention provides a liquid-operated liquid-liquid valve in a pipe for supplying the paint to the coating gun, and the liquid-liquid valve supplies the liquid to the paint gun. The flow rate of the paint is controlled.
【0009】[0009]
【作用】上記したように、塗装ガンに供給する塗料の流
量を液体で作動する液−液バルブにより制御するように
したことにより、応答遅れやマークレット変動等がなく
なり、塗料の流量を微妙に制御させることが可能となっ
た。As described above, since the flow rate of the paint supplied to the coating gun is controlled by the liquid-liquid valve operated by liquid, the response delay and marklet fluctuation are eliminated, and the flow rate of the paint is delicately adjusted. It became possible to control.
【0010】[0010]
【実施例】図1は、本発明に係る塗料の流量制御方法の
実施に使用される装置のブロック図である。DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a block diagram of an apparatus used for carrying out a paint flow rate control method according to the present invention.
【0011】同図において、(11)は塗料を噴霧する塗
装ガン、(12)は塗料供給装置(図示せず)から塗装ガ
ン(11)に塗料を供給する塗料配管で、その途中には液
体で作動する液−液バルブ(13)が設けられている。
(14)は液体供給装置(図示せず)から液−液バルブ
(13)に液体、ここではクリア塗料(透明な塗料)を供
給する液体配管で、その途中には電磁気で作動する電−
液レギュレター(15)が設けられているとともに、液−
液バルブ(13)と電−液レギュレター(15)との間に前
記液体供給装置に接続された配管(16)を接続させる切
替弁(17)が設けられている。(18)は塗料配管(12)
の塗装ガン(11)と液−液バルブ(13)のと間に設けら
れた流量センサーで、塗装ガン(11)に供給される塗料
の流量を検出し、その流量検出値に応じた電気信号を出
力する。(19)は電−液レギュレター(15)と流量セン
サー(18)とにそれぞれ電気的に接続されたCPUで、
流量センサー(18)から出力する流量検出値と予め設定
された流量設定値とを比較し、両者が一致するように電
−液レギュレター(15)をコントロールする。In the figure, (11) is a paint gun for spraying paint, (12) is a paint pipe for supplying paint from a paint supply device (not shown) to the paint gun (11), and a liquid is provided in the middle thereof. A liquid-liquid valve (13) that operates in accordance with 1. is provided.
Reference numeral (14) is a liquid pipe for supplying a liquid, here clear paint (transparent paint), to a liquid-liquid valve (13) from a liquid supply device (not shown), and an electromagnetically operated liquid pipe is provided in the middle thereof.
A liquid regulator (15) is provided and the liquid-
A switching valve (17) for connecting a pipe (16) connected to the liquid supply device is provided between the liquid valve (13) and the electro-liquid regulator (15). (18) is paint piping (12)
The flow sensor installed between the coating gun (11) and the liquid-liquid valve (13) detects the flow rate of the paint supplied to the coating gun (11), and an electrical signal corresponding to the detected flow rate. Is output. (19) is a CPU electrically connected to the electro-liquid regulator (15) and the flow sensor (18), respectively.
The flow rate detection value output from the flow rate sensor (18) is compared with a preset flow rate set value, and the electro-liquid regulator (15) is controlled so that the two match.
【0012】上記構成において、次にその動作を説明す
る。The operation of the above arrangement will be described below.
【0013】塗料供給装置から塗料配管(12)を経て塗
装ガン(11)に塗料を供給する動作と並行し乍ら、流量
センサー(18)で塗装ガン(11)に供給される塗料の流
量を検出してその流量検出値をCPU(19)に送り、こ
のCPU(19)で流量センサー(18)から送られてきた
流量検出値と予め設定された流量設定値とを比較して両
者が一致するように電−液レギュレター(15)をコント
ロールする。この電−液レギュレター(18)のコントロ
ールにより液体配管(14)の電−液レギュレター(18)
から下流側のクリア塗料の圧力を制御し、このクリア塗
料の圧力に応じて液−液バルブ(13)を作動して塗料配
管(12)の液−液バルブ(13)から下流側の塗料の流量
を制御する。The flow rate sensor (18) controls the flow rate of the paint supplied to the coating gun (11) in parallel with the operation of supplying the paint from the paint supply device to the coating gun (11) through the paint pipe (12). The detected flow rate is sent to the CPU (19), and the CPU (19) compares the flow rate detection value sent from the flow rate sensor (18) with a preset flow rate set value, and the two match. Control the Electro-Liquid Regulator (15) as you do. By controlling this electro-liquid regulator (18), the electro-liquid regulator (18) of the liquid pipe (14)
Control the pressure of the clear paint on the downstream side, and operate the liquid-liquid valve (13) according to the pressure of this clear paint to remove the paint on the downstream side from the liquid-liquid valve (13) of the paint pipe (12). Control the flow rate.
【0014】そして、流量制御の不要時、例えばカラー
チェンジ時やライン停止時には、切替弁(17)を切替え
てクリア塗料を配管(16)を経て液体供給装置に戻す。When the flow rate control is unnecessary, for example, when the color is changed or the line is stopped, the switching valve (17) is switched to return the clear paint to the liquid supply device through the pipe (16).
【0015】上述したように、塗装ガン(11)に供給す
る塗料の流量を液体(クリア塗料)の圧力で作動される
液−液バルブ(13)で制御するようにしたので、エアー
で作動する従来のものと比べて応答性が良好で、しか
も、マークレット変動等も起こらず、この結果、塗料の
流量を微妙に制御させることが可能となり、高精度な塗
料の流量制御が行える。As described above, since the flow rate of the paint supplied to the coating gun (11) is controlled by the liquid-liquid valve (13) which is operated by the pressure of the liquid (clear paint), it is operated by air. The responsiveness is better than that of the conventional one, and the marklet fluctuation is not generated. As a result, the flow rate of the paint can be delicately controlled, and the flow rate of the paint can be controlled with high accuracy.
【0016】また、液−液バルブ(13)を作動する液体
としてクリア塗料を使用しているので、液−液バルブ
(13)内において液漏れが生じても塗料の品質が影響さ
れることはない。Further, since clear paint is used as the liquid for operating the liquid-liquid valve (13), even if liquid leaks in the liquid-liquid valve (13), the quality of the paint is not affected. Absent.
【0017】尚、上記実施例では、液−液バルブ(13)
を作動する液体としてクリア塗料を使用した例を説明し
たが、これ以外にも塗料の品質に影響を与えない液体で
あれば使用可能である。In the above embodiment, the liquid-liquid valve (13)
Although the example in which the clear paint is used as the liquid for activating the above has been described, any other liquid that does not affect the quality of the paint can be used.
【0018】[0018]
【発明の効果】以上説明したように、本発明は、塗装ガ
ンに塗料を供給する配管にバルブを設け、このバルブに
より塗料ガンに供給する塗料の流量を制御する場合にお
いて、バルブを液体で作動するようにしたから、エアー
で作動する従来のものと比べて応答性が良好で、しか
も、マークレット変動等も起こらず、この結果、塗料の
流量を微妙に制御させることが可能となり、高精度な塗
料の流量制御が行える。As described above, according to the present invention, a valve is provided in a pipe for supplying paint to a coating gun, and when the flow rate of the paint supplied to the coating gun is controlled by this valve, the valve is operated by a liquid. As a result, the responsiveness is better than that of the conventional one that operates by air, and there is no change in marklet. As a result, it is possible to finely control the flow rate of the paint, and high precision is achieved. The flow rate of various paints can be controlled.
【図1】本発明に係る塗料の流量制御方法の実施に使用
される装置のブロック図である。FIG. 1 is a block diagram of an apparatus used for carrying out a paint flow rate control method according to the present invention.
【図2】従来の塗料の流量制御方法を説明するためのブ
ロック図である。FIG. 2 is a block diagram for explaining a conventional paint flow rate control method.
11 塗装ガン 12 塗料配管 13 液−液バルブ 14 液体配管 15 電−液レギュレター 17 切換弁 18 流量センサー 19 CPU 11 Painting gun 12 Paint piping 13 Liquid-liquid valve 14 Liquid piping 15 Electric-liquid regulator 17 Switching valve 18 Flow sensor 19 CPU
Claims (1)
作動する液−液バルブを設け、この液−液バルブにより
塗料ガンに供給する塗料の流量を制御するようにしたこ
とを特徴とする塗料の流量制御方法。1. A liquid-liquid valve operated by a liquid is provided in a pipe for supplying paint to a coating gun, and the flow rate of the paint supplied to the coating gun is controlled by this liquid-liquid valve. Paint flow control method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21246892A JPH0655132A (en) | 1992-08-10 | 1992-08-10 | Controlling method for flow rate of coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21246892A JPH0655132A (en) | 1992-08-10 | 1992-08-10 | Controlling method for flow rate of coating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0655132A true JPH0655132A (en) | 1994-03-01 |
Family
ID=16623149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21246892A Withdrawn JPH0655132A (en) | 1992-08-10 | 1992-08-10 | Controlling method for flow rate of coating |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0655132A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007198839A (en) * | 2006-01-25 | 2007-08-09 | Hitachi Ltd | How to maintain the suppression chamber |
| JP2009135661A (en) * | 2007-11-29 | 2009-06-18 | Funai Electric Co Ltd | Microphone unit, manufacturing method thereof and sound input device |
-
1992
- 1992-08-10 JP JP21246892A patent/JPH0655132A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007198839A (en) * | 2006-01-25 | 2007-08-09 | Hitachi Ltd | How to maintain the suppression chamber |
| JP2009135661A (en) * | 2007-11-29 | 2009-06-18 | Funai Electric Co Ltd | Microphone unit, manufacturing method thereof and sound input device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 19991102 |