JPH0314507B2 - - Google Patents

Info

Publication number
JPH0314507B2
JPH0314507B2 JP18464585A JP18464585A JPH0314507B2 JP H0314507 B2 JPH0314507 B2 JP H0314507B2 JP 18464585 A JP18464585 A JP 18464585A JP 18464585 A JP18464585 A JP 18464585A JP H0314507 B2 JPH0314507 B2 JP H0314507B2
Authority
JP
Japan
Prior art keywords
servo motor
valve
pattern
amount
paint
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.)
Expired
Application number
JP18464585A
Other languages
Japanese (ja)
Other versions
JPS6245366A (en
Inventor
Yoshio Matsushita
Takeshi Mochizuki
Yukimitsu Watanabe
Ikuya Shiraishi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Anest Iwata Corp
Original Assignee
Anest Iwata Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Anest Iwata Corp filed Critical Anest Iwata Corp
Priority to JP60184645A priority Critical patent/JPS6245366A/en
Priority to DE8888116694T priority patent/DE3675552D1/en
Priority to EP86110850A priority patent/EP0212442B1/en
Priority to DE8686110850T priority patent/DE3675460D1/en
Priority to EP88116694A priority patent/EP0308993B1/en
Priority to US06/896,204 priority patent/US4754923A/en
Priority to KR1019860006905A priority patent/KR930001503B1/en
Publication of JPS6245366A publication Critical patent/JPS6245366A/en
Publication of JPH0314507B2 publication Critical patent/JPH0314507B2/ja
Granted legal-status Critical Current

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Description

【発明の詳細な説明】 <産業上の利用分野> 本発明は塗料の吹付けを外部信号をもつて遠隔
的に、且つ無段階に制御しえるバルブ開度自動調
整装置を備えたスプレーガンに関するものであ
る。
Detailed Description of the Invention <Industrial Application Field> The present invention relates to a spray gun equipped with an automatic valve opening adjustment device that can remotely and steplessly control the spraying of paint using an external signal. It is something.

<従来の技術> 従来用いられている外部信号にて操作するスプ
レーガは、例えば本願出願人が先に提示した実願
昭57−145022号のようにスプレーガンの塗料、空
気回路上に必要数の調節弁を置き、予めセツトし
た調節弁を外部信号によつて開閉し、且つその組
合せで各種被塗物の形状、大きさ等の吹付条件に
応じた塗料噴出量、パターン幅を得る構成となつ
ている。この場合、必要な塗料噴出量やパターン
幅は調節弁の数により限定を受けるため、ある範
囲の中で使用せざるを得なかつた。また、調節弁
1個がスプレーガンと同様の構成(同実願昭57−
145023号)となつているためセツトとして高価と
なる問題がある。
<Prior art> Conventionally used spray guns that are operated by external signals have been proposed in Utility Model Application No. 145022/1988, which was previously submitted by the applicant of the present application, by applying a necessary number of spray guns to the paint and air circuits of the spray gun. A control valve is installed, and the control valve set in advance is opened and closed by an external signal, and by combining these, the amount of paint sprayed and pattern width can be obtained according to the spraying conditions such as the shape and size of various objects to be coated. ing. In this case, the necessary paint ejection amount and pattern width are limited by the number of control valves, so they have to be used within a certain range. In addition, one control valve has the same configuration as a spray gun (the same patent application No. 57-
145023), which makes it expensive as a set.

更にまた、塗料や圧縮空気の残圧のため、霧化
装置から離れところにある調節弁からの流量を迅
速に、且つ正確に霧化装置に伝えることが難し
く、応答性に問題がある。
Furthermore, due to the residual pressure of paint and compressed air, it is difficult to quickly and accurately transmit the flow rate from a control valve located far from the atomizer to the atomizer, resulting in a problem in responsiveness.

<発明が解決しようとする問題点> 本発明は上記実情に鑑み、各弁をサーボモータ
により直接駆動することによつて無段階に流量制
御ができ、且つホース長さや内部抵抗等の影響の
ない安定性能を得るスプレーガンを提供すること
を目的としたものである。
<Problems to be Solved by the Invention> In view of the above-mentioned circumstances, the present invention provides a system that allows stepless flow control by directly driving each valve with a servo motor, and is free from the effects of hose length, internal resistance, etc. The purpose is to provide a spray gun that provides stable performance.

<問題点を解決するための手段> 本発明は、先端に霧化装置を有し、該霧化装置
より噴出する塗料の量をニードル弁で調節し、且
つ霧化装置より噴出する圧縮空気の量を調節する
パターン調節弁を備えた塗装用スプレーガンにお
いて、ニードル弁及びパターン調節弁の少なくと
も一方の弁体を作動させるネジスライダ機構と、
ネジスライダ機構の駆動ネジ部と接続したサーボ
モータと、該サーボモータの回転位置を検出し、
その制御量を出力するエンコーダを配設したもの
である。
<Means for solving the problems> The present invention has an atomizing device at the tip, adjusts the amount of paint ejected from the atomizing device with a needle valve, and adjusts the amount of compressed air ejected from the atomizing device. In a painting spray gun equipped with a pattern control valve that adjusts the amount, a screw slider mechanism that operates a valve body of at least one of the needle valve and the pattern control valve;
Detecting the servo motor connected to the drive screw part of the screw slider mechanism and the rotational position of the servo motor,
An encoder is installed to output the control amount.

<作 用> 上記の様な構成のため、先ずこのスプレーガン
を作動させるときの制御は、外部信号により予め
定められた値だけ各サーボモータを所定の位置に
移動させる。その位置はエンコーダによつて逐次
検出されているため正確に保持される。塗料噴出
量や空気噴出量を変化させ、塗装条件を変更する
場合は、それに応じた外部信号が出され、エンコ
ーダによる現在の位置を比較し、その分サーボモ
ータを駆動させる。
<Function> Due to the above-described configuration, first, the control when operating this spray gun is to move each servo motor to a predetermined position by a predetermined value based on an external signal. Since the position is sequentially detected by the encoder, it is accurately maintained. When changing the coating conditions by changing the amount of paint or air ejected, a corresponding external signal is output, the current position determined by the encoder is compared, and the servo motor is driven accordingly.

この場合、外部信号はロボツト又は自動塗装装
置の動作中に発せられる制御用デジタル又はアナ
ログ信号を使用するか、手動スイツチによる信号
を用いることができる。
In this case, the external signal can be a control digital or analog signal generated during operation of the robot or automatic painting device, or a signal from a manual switch.

この様にサーボモータの駆動に連動してネジス
ライダ機構が回転し、ニードル弁、パターン調節
弁が可動し、それに基づき塗料及び空気又はその
一方の流量がコントロールされ、被塗物に応じた
塗料噴出量やパターン幅を無段階に制御できる。
In this way, the screw slider mechanism rotates in conjunction with the drive of the servo motor, and the needle valve and pattern control valve move, and based on this, the flow rate of paint and/or air is controlled, and the amount of paint jetted out according to the object to be coated. and pattern width can be controlled steplessly.

<実施例> 以下、本発明を実施例の図面について説明する
と、次の通りである。
<Example> Hereinafter, the present invention will be explained with reference to drawings of an example.

1は先端に塗料ノズル2と空気キヤツプ3より
なる霧化装置4を備えたスプレーガン本体で該ガ
ン本体1の中央には塗料ノズル2の中心に先端を
臨ませたニードル弁5を設けると共に、該ニード
ル弁5の後端にネジスライダ6を設け該ネジスラ
イダ6の後端に有する駆動ネジ部6aにサーボモ
ータ7の駆動軸を取付け、且つ該サーボモータ7
の後端には、該モータの回転位置を検出し、その
制御量を出力するエンコーダ8を、カツプリング
9を介在して接続してなる。一方、空気キヤツプ
3に臨むパターン調節弁10の後端にネジスライ
ダ6′を設け、該ネジスライダ6′の駆動ネジ部6
a′にサーボモータ7′を取付け、且つ該サーボモ
ータ7′の後端にカツプリン9を介しエンコーダ
8′を取付けてなる。この場合、ネジスライダ6,
6′の構成は内周にネジ6dを形成し、外周にピ
ン6bを突出させ、該ピン6bがスライダ6,
6′をガイドする本体又はガイドに設けた軸方向
の溝6cに係合し、軸方向のみにスライドする如
くしてなり、スライダ内のネジ6d内に螺入した
駆動ネジ部6aをサーボモータ7,7′の回転に
連動してネジスライダ6,6′を前後移動させる。
1 is a spray gun body equipped with an atomizing device 4 consisting of a paint nozzle 2 and an air cap 3 at its tip; a needle valve 5 with its tip facing the center of the paint nozzle 2 is provided in the center of the gun body 1; A screw slider 6 is provided at the rear end of the needle valve 5, and a drive shaft of a servo motor 7 is attached to a drive screw portion 6a provided at the rear end of the screw slider 6.
An encoder 8 for detecting the rotational position of the motor and outputting the controlled amount is connected to the rear end of the motor via a coupling 9. On the other hand, a screw slider 6' is provided at the rear end of the pattern control valve 10 facing the air cap 3, and a drive screw portion 6 of the screw slider 6' is provided.
A servo motor 7' is attached to a', and an encoder 8' is attached to the rear end of the servo motor 7' via a coupling 9. In this case, the screw slider 6,
6' has a screw 6d formed on the inner periphery, a pin 6b protruding from the outer periphery, and the pin 6b is connected to the slider 6,
The servo motor 7 engages with an axial groove 6c provided in the main body or guide that guides the slider 6' and slides only in the axial direction. , 7', the screw sliders 6, 6' are moved back and forth.

次に、この作用を説明すると、先ず外部より信
号(デジタル、又はアナログ)を受け、予め定め
た信号に対応するニードル弁5、パターン調節弁
10の位置を制御装置(図示せず)が出力すると
サーボモータ7,7′が回転し、その回転運動に
より各弁5,10を移動させる。この各弁5,1
0の開度位置(現位置)は、サーボモータ7,
7′に接続されたエンコーダ8,8′より制御装置
にフイードバツクされ必要な方向位置(回転方向
による弁の作動方向)を常にコントロールされ
る。
Next, to explain this operation, first, a signal (digital or analog) is received from the outside, and a control device (not shown) outputs the positions of the needle valve 5 and pattern control valve 10 corresponding to the predetermined signal. The servo motors 7, 7' rotate, and their rotational movement moves each valve 5, 10. These valves 5, 1
At the opening position of 0 (current position), the servo motor 7,
Feedback is sent to the control device from encoders 8, 8' connected to the valve 7', and the necessary directional position (direction of valve operation based on the direction of rotation) is constantly controlled.

この様に、ニードル弁5、パターン調節弁10
が所定位置にセツトされ、所定のスプレーが常時
制御状態で行われる。
In this way, the needle valve 5, the pattern control valve 10
is set in a predetermined position, and a predetermined spray is carried out under constant control.

このパターン調節弁10は、従来のスプレーガ
ンと同様空気キヤツプ3の側面空気孔3aから噴
出する空気量を調節するこによつて噴霧パターン
を変化させるものである。従つて、このパターン
調節弁10が閉じた場合、パターンは円形となり
最小のパターン幅を形成し、また、全開になつた
とき最大パターンが形成される。
The pattern control valve 10 changes the spray pattern by adjusting the amount of air ejected from the side air hole 3a of the air cap 3, similar to a conventional spray gun. Therefore, when the pattern control valve 10 is closed, the pattern becomes circular, forming the minimum pattern width, and when fully open, the maximum pattern is formed.

また、塗料は塗料導入口11より塗料ノズル2
の噴出孔2aから噴出し、空気キヤツプ3側の中
心空気孔3bと側面空気孔3aより噴出する空気
により所定の噴霧パターンが形成される。
Also, the paint is supplied from the paint inlet 11 to the paint nozzle 2.
A predetermined spray pattern is formed by the air ejected from the ejection holes 2a, and the air ejected from the central air hole 3b and side air holes 3a on the side of the air cap 3.

<発明の効果> 上述の様に本発明のバルブ開度自動調整装置を
備えたスプレーガンは、塗料、空気の流量調節を
弁に備えたサーボモータによつて無段階に開度制
御する構成としたことにより、被塗物の変化、被
塗物形状に適合したスプレー条件が必要に応じ短
時間に設定できるため、応答性が良くなり、塗料
の無駄がなく経費が節減できる。
<Effects of the Invention> As described above, the spray gun equipped with the automatic valve opening adjustment device of the present invention has a configuration in which the opening of the paint and air is controlled steplessly by a servo motor equipped with the valve. As a result, spray conditions suitable for changes in the object to be coated and the shape of the object to be coated can be set in a short time as necessary, resulting in improved responsiveness, no waste of paint, and cost savings.

しかも、塗料噴出量、パターン巾の無段階制御
ができ、きめ細かい塗装が可能となり、また遠隔
操作により自由に調節できる。更に、装置が従来
に比べ安価になり、全体として小型化がはかれる
等の効果を有する。
Furthermore, the amount of paint ejected and the pattern width can be controlled steplessly, allowing detailed painting to be performed, and can be freely adjusted by remote control. Furthermore, the device is less expensive than the conventional device, and the device as a whole can be made smaller.

尚、実施例の説明ではニードル弁及びパターン
調節弁の双方を制御する場合を述べたが、各弁の
いずれか一方のみを制御することによつても本発
明の前記目的を達成できることは言うまでもな
い。
In the description of the embodiment, a case has been described in which both the needle valve and the pattern control valve are controlled, but it goes without saying that the above object of the present invention can also be achieved by controlling only one of the valves. .

【図面の簡単な説明】[Brief explanation of the drawing]

図面は本発明の実施例を示す要部切欠側面図で
ある。 1……ガン本体、2……塗料ノズル、3……空
気キヤツプ、4……霧化装置、5……ニードル
弁、6,6′……ネジスライダ、6a,6a′……
…駆動ネジ部、7,7′……サーボモータ、8,
8′……エンコーダ、10……パターン調節弁。
The drawing is a cutaway side view of a main part showing an embodiment of the present invention. 1...Gun body, 2...Paint nozzle, 3...Air cap, 4...Atomization device, 5...Needle valve, 6, 6'...Screw slider, 6a, 6a'...
...Drive screw part, 7, 7'...Servo motor, 8,
8'...Encoder, 10...Pattern control valve.

Claims (1)

【特許請求の範囲】[Claims] 1 先端に霧化装置を有し、該霧化装置より噴出
する塗料の量を調節可能としたニードル弁と、霧
化装置より噴出する圧縮空気の量を調節して噴霧
パターンを調節しえるパターン調節弁とを備えた
スプレーガンにおいて、ニードル弁および/また
はパターン調節弁の弁体基部にネジスライダ機構
を備えると共に、該ネジスライダ機構の駆動ネジ
部にサーボモータと該サーボモータの回転位置を
検出しその制御量を出力するエンコーダを配し、
外部信号により前部サーボモータを駆動制御する
ことを特徴としたバルブ開度自動調整装置を備え
たスプレーガン。
1. A needle valve that has an atomizer at its tip and can adjust the amount of paint ejected from the atomizer, and a pattern that allows the spray pattern to be adjusted by adjusting the amount of compressed air ejected from the atomizer. In a spray gun equipped with a control valve, a screw slider mechanism is provided at the base of the valve body of the needle valve and/or pattern control valve, and a servo motor is provided at the drive screw portion of the screw slider mechanism, and a rotational position of the servo motor is detected and the rotational position of the servo motor is detected. Equipped with an encoder that outputs the control amount,
A spray gun equipped with an automatic valve opening adjustment device that controls the front servo motor using an external signal.
JP60184645A 1985-08-22 1985-08-22 Spray gun equipped with valve opening degree automatic control apparatus Granted JPS6245366A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
JP60184645A JPS6245366A (en) 1985-08-22 1985-08-22 Spray gun equipped with valve opening degree automatic control apparatus
DE8888116694T DE3675552D1 (en) 1985-08-22 1986-08-06 SPRAY GUN WITH AUTOMATIC CONTROL OF THE VALVE OPENING.
EP86110850A EP0212442B1 (en) 1985-08-22 1986-08-06 Spray gun with automatic valve opening control means
DE8686110850T DE3675460D1 (en) 1985-08-22 1986-08-06 SPRAY GUN WITH AUTOMATIC VALVE CONTROL.
EP88116694A EP0308993B1 (en) 1985-08-22 1986-08-06 Spray gun with automatic valve opening control means
US06/896,204 US4754923A (en) 1985-08-22 1986-08-14 Spray gun with automatic valve opening control means
KR1019860006905A KR930001503B1 (en) 1985-08-22 1986-08-21 Spray gun with automatic valve opening control means

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60184645A JPS6245366A (en) 1985-08-22 1985-08-22 Spray gun equipped with valve opening degree automatic control apparatus

Publications (2)

Publication Number Publication Date
JPS6245366A JPS6245366A (en) 1987-02-27
JPH0314507B2 true JPH0314507B2 (en) 1991-02-26

Family

ID=16156855

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60184645A Granted JPS6245366A (en) 1985-08-22 1985-08-22 Spray gun equipped with valve opening degree automatic control apparatus

Country Status (1)

Country Link
JP (1) JPS6245366A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01108053A (en) * 1987-10-20 1989-04-25 L Ee C:Kk Ink spray gun

Also Published As

Publication number Publication date
JPS6245366A (en) 1987-02-27

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