JP2000167441A - Coating gun driving device - Google Patents
Coating gun driving deviceInfo
- Publication number
- JP2000167441A JP2000167441A JP10349986A JP34998698A JP2000167441A JP 2000167441 A JP2000167441 A JP 2000167441A JP 10349986 A JP10349986 A JP 10349986A JP 34998698 A JP34998698 A JP 34998698A JP 2000167441 A JP2000167441 A JP 2000167441A
- Authority
- JP
- Japan
- Prior art keywords
- coating
- coating nozzle
- spray
- gear
- driving device
- 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
Landscapes
- Nozzles (AREA)
- Spray Control Apparatus (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、塗料を吹き付け塗
装する塗装ノズルを駆動する塗装ガン駆動装置に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coating gun driving device for driving a coating nozzle for spraying a coating material.
【０００２】[0002]
【従来の技術】従来、吹付け塗装は、円状（丸吹き）あ
るいは楕円状（平吹き）にしたスプレ−パタ−ンで塗り
重ねながら一定の膜厚になるようにスプレ−ガンを駆動
する。自動塗装の場合、コンベアで搬送されてくる被塗
物に対しスプレ−ガンを一定の速度と幅で垂直あるいは
水平にレシプロさせながら塗装を行なっている。2. Description of the Related Art Conventionally, in spray coating, a spray gun is driven so as to have a constant film thickness while applying a spray pattern in a circular (round) or elliptical (flat) pattern. . In the case of automatic painting, painting is performed while vertically or horizontally reciprocating a spray gun at a constant speed and width on an object to be conveyed by a conveyor.
【０００３】一般的に吹付け塗装の塗着効率は、刷毛や
ロ−ラ−塗装と比較して非常に低く通常５０〜６０％程
度である。塗着効率を向上させるには至近距離で吹付け
ることが有効であり、スプレ−ガンを数センチメ−トル
の塗装距離で移動させながら吹付け塗装すれば塗着効率
を９０％以上確保することも可能である。[0003] Generally, the spraying efficiency of spray coating is very low as compared with brush or roller coating, and is usually about 50 to 60%. Spraying at a close distance is effective to improve the coating efficiency. Spray coating while moving the spray gun at a coating distance of several centimeters can secure the coating efficiency of 90% or more. It is possible.
【０００４】一方、塗色の中でも高級なイメ−ジの強い
メタリック塗装やパ−ル塗装などを行なう場合には、塗
装ムラが出来ないように塗り重ね回数をなるべく多くす
るように、スプレ−パタ−ン幅を広くして吹付けを行な
う等の塗装条件が取り入れられている。[0004] On the other hand, when performing metallic coating or pearl coating, which has a high image quality among coating colors, a spray pattern is applied so as to increase the number of times of coating as much as possible so as to prevent uneven coating. The painting conditions such as spraying with a wider width are adopted.
【０００５】[0005]
【発明が解決しようとする課題】一般に、エアスプレ−
やエアレススプレ−等の吹付け塗装の場合、スプレ−パ
タ−ンの中心に比較して、パタ−ン端部へいくほど塗着
効率は低下する傾向にある。これは、霧化空気流や随伴
気流が、被塗物に衝突して霧化粒子を運び去る搬送空気
流として作用するためで、パタ−ン端部の霧化粒子ほど
被塗物方向への慣性力が低いために該搬送空気流の影響
を受けやすくなる。そのためメタリック塗装やパ−ル塗
装などのようにスプレ−パタ−ン幅を広げることは、塗
着効率の低下を招く要因となっていた。Generally, an air spray is used.
In the case of spray coating such as air spray and airless spray, the coating efficiency tends to decrease toward the end of the pattern as compared to the center of the spray pattern. This is because the atomized air flow and the accompanying air flow act as a carrier air flow that collides with the object and carries away the atomized particles, so that the atomized particles at the end of the pattern are closer to the object. Since the inertia force is low, it is easily affected by the carrier air flow. For this reason, widening the spray pattern width, such as in metallic coating or pearl coating, has been a factor in causing a decrease in coating efficiency.
【０００６】塗着効率の低下を抑制するには、前述の通
り、至近距離で塗装する方法もあるが、スプレ−距離を
近づけるとスプレ−パタ−ン幅が極端に小さくなってし
まい、その結果、一回のスプレ−ガン移動操作で吹付け
られるウェット塗膜が厚くなり過ぎてタレやナガレなど
の塗膜欠陥を招く原因となっていた。As described above, there is a method of coating at a short distance in order to suppress the decrease in the coating efficiency. However, when the spray distance is reduced, the spray pattern width becomes extremely small. In addition, the wet coating sprayed by one spray gun moving operation becomes too thick, which causes a coating defect such as sagging or peeling.
【０００７】一回のスプレ−ガン移動操作で吹付けられ
るウェット塗膜を適度に薄くするには、吐出量を小さく
するかスプレ−ガン移動速度を高速にするなどの手段も
考えられるが、吐出量を小さくすると塗装時間が長くな
って生産性が低下してしまい、スプレ−ガン移動速度を
あまり速くするとレシプロ装置の機械寿命が短くなるば
かりでなく、加減速制御でのモ−タ−過負荷や制御速度
の不安定を招く要因になるなどの問題があった。In order to appropriately reduce the thickness of the wet coating film sprayed by a single spray gun moving operation, it is conceivable to reduce the discharge amount or increase the spray gun moving speed. If the amount is reduced, the coating time becomes longer and the productivity is reduced. If the spray gun moving speed is too high, not only the mechanical life of the reciprocating device is shortened, but also the motor overload in the acceleration / deceleration control. And causes the control speed to become unstable.
【０００８】本発明の目的は、搬送空気流の影響を受け
ない有効スプレ−パタ−ン幅を広げて、至近距離塗装に
おいても従来の塗装距離におけるスプレ−パタ−ンと同
等のパタ−ン幅を確保した塗着効率の高い吹付け塗装を
可能とする塗装ガン駆動装置を提供することにある。An object of the present invention is to increase the effective spray pattern width which is not affected by the flow of the conveying air, so that even at a short distance coating, the pattern width is the same as the spray pattern at the conventional coating distance. It is an object of the present invention to provide a coating gun driving device capable of performing spray coating with high coating efficiency while ensuring the above.
【０００９】[0009]
【課題を解決するための手段】本発明は、駆動装置によ
って回転運動する塗装ノズル取り付けベ−スと、該塗装
ノズル取り付けベ−スの回転軸から偏心した位置に、ベ
アリングを介して自由に回転するように取り付けられた
塗装ノズルと、該塗装ノズル取り付けベ−スを回転させ
る駆動装置とを具備することを特徴とする塗装ガン駆動
装置に関する。SUMMARY OF THE INVENTION According to the present invention, there is provided a coating nozzle mounting base rotated by a driving device, and a coating nozzle mounting base which is freely rotated via a bearing at a position eccentric from a rotation axis of the coating nozzle mounting base. And a driving device for rotating the coating nozzle mounting base.
【００１０】[0010]
【発明の実施の形態】本発明において塗装ノズル取り付
けベ−スは、駆動装置によって回転運動するものであ
り、その駆動は塗装ノズル取り付けベ−スの外周を歯車
式、ベルト式、ロ−ラ−式などによって回転させること
による。例えば歯車式であれば、該塗装ノズル取り付け
ベ−スは、歯車と連動して回転運動するものであり、該
歯車は取り付けベ−スと中心軸が同じであって一体とし
ても別々としてもよい。該塗装ノズル取り付けベ−スの
回転は、これと連動する歯車を、従属歯車と噛み合わ
せ、駆動モ−タ−等で駆動する該従属歯車の回転で行な
われる。DESCRIPTION OF THE PREFERRED EMBODIMENTS In the present invention, the coating nozzle mounting base is rotated by a driving device, and the driving is performed by driving the coating nozzle mounting base around a gear type, a belt type, and a roller. By rotating according to a formula. For example, in the case of a gear type, the coating nozzle mounting base rotates in conjunction with a gear, and the gear has the same central axis as the mounting base and may be integrated or separate. . The rotation of the base for attaching the coating nozzle is performed by rotating a driven gear driven by a driving motor or the like by meshing a gear interlocked therewith with a driven gear.
【００１１】塗装ノズルは、塗装ノズル取り付けベ−ス
の回転中心から偏心した位置に取り付けられ、該塗装ノ
ズルの吐出口が取り付けベ−スの回転中心から偏心した
位置までの半径に相当する円運動を行なう。そのため有
効なスプレ−パタ−ン幅を固定パタ−ン幅の数倍に広げ
ることが可能である。従って塗装距離を数センチメ−ト
ルの至近距離にセットしても従来の塗装距離におけるス
プレ−パタ−ンと同等のパタ−ン幅で吹き付け塗装が可
能になる。The coating nozzle is mounted at a position eccentric from the rotation center of the coating nozzle mounting base, and has a circular motion corresponding to a radius from the discharge center of the coating nozzle to a position eccentric from the rotation center of the mounting base. Perform Therefore, the effective spray pattern width can be increased to several times the fixed pattern width. Therefore, even if the coating distance is set to a short distance of several centimeters, spray coating can be performed with the same pattern width as the spray pattern at the conventional coating distance.
【００１２】該塗装ノズルは、上記取り付けベ−スの取
り付け位置において、該塗装ノズルが自由に回転するよ
うにベアリングを介して取り付けられるものである。The coating nozzle is mounted via a bearing so that the coating nozzle can freely rotate at the mounting position of the mounting base.
【００１３】上記の通り構成される本発明の塗装ガン駆
動装置は、さらにレシプロ装置と組合わせることによ
り、スプレ−ノズルが円運動と直線運動を複合したスパ
イラル運動を行なうことになり、塗装ノズル取り付けベ
−スの回転速度とレシプロ速度を合成した速度がスプレ
−ノズルの移動速度となるため、一回のスプレ−ガン移
動操作で吹き付けられるウェット塗膜を薄くすることが
できる。そのため塗料の吐出量は従来レベルで設定が可
能で、生産性を低下させることがない。In the coating gun driving device of the present invention configured as described above, the spray nozzle performs a spiral motion combining a circular motion and a linear motion by further combining with a reciprocating device. Since the speed obtained by combining the rotation speed of the base and the reciprocating speed is the moving speed of the spray nozzle, the wet coating film sprayed by one spray gun moving operation can be thinned. Therefore, the discharge amount of the paint can be set at a conventional level, and the productivity is not reduced.
【００１４】[0014]
【実施例】図１は、本発明の塗装ガン駆動装置の一実施
例の示す説明図であり、図２は従来装置及び本発明装置
の塗装軌跡である。FIG. 1 is an explanatory view showing one embodiment of a coating gun driving device according to the present invention, and FIG. 2 is a painting locus of a conventional device and a device according to the present invention.
【００１５】図１では、（ａ）塗装ガン駆動装置を上方
からみた図及び（ｂ）塗装ガン駆動装置の断面図を示
す。塗装ノズル取付けベ−ス１が中心軸を同じとする歯
車（「ＰＳ１．５−３２」、小原歯車工業社製）と一体
になっており、ニ−ドルベアリング４（「ＴＡＦ４０５
０２０」、ＴＨＫ社製）を介して塗装ガン駆動装置に組
み込まれている。塗装ノズル２（「ＡＭ−１２Ｓ」、ア
トマックス社製）は、ニ−ドルベアリング３（「ＴＡＦ
６１２１２」、ＴＨＫ社製）を介して塗装ノズル取付け
ベ−ス１の回転軸から偏心した位置に取り付けられてい
る。塗装ノズル取付けベ−ス１の歯車は、従属歯車５
（「ＰＳ１．５−２４」、小原歯車工業社製）と噛み合
っており、従属歯車５は、駆動モ−タ−６（「Ｍ３１５
−２０１」、オリエンタルモ−タ−社製）によりダイレ
クトに回転する。FIG. 1 shows (a) a view of the coating gun driving device from above and (b) a cross-sectional view of the coating gun driving device. The coating nozzle mounting base 1 is integrated with a gear (“PS1.5-32”, manufactured by Ohara Gear Industry Co., Ltd.) having the same central axis, and a needle bearing 4 (“TAF405”).
020 ", manufactured by THK). The coating nozzle 2 (“AM-12S”, manufactured by Atmax) is equipped with a needle bearing 3 (“TAF”).
61212 "(manufactured by THK) through the eccentric position of the rotation axis of the coating nozzle mounting base 1. The gear of the coating nozzle mounting base 1 is a dependent gear 5
(“PS1.5-24” manufactured by Ohara Gear Industry Co., Ltd.), and the subordinate gear 5 is driven by a driving motor 6 (“M315
-201 ", manufactured by Oriental Motor Co., Ltd.).
【００１６】ここで該塗装ノズル２を塗装ノズル取付け
ベ−ス１の回転軸から１．５ｃｍに偏心した位置に取り
付けた。その結果、塗装ノズル２は１．５ｃｍ×２の直
径を持つ円の円周を移動することになる。塗装ノズルの
霧化条件を吐出量２０ｃｃ／ｍｉｎ、霧化圧力３ｋｇ／
ｃｍ2 、塗装距離５ｃｍで約３ｃｍの有効スプレ−パタ
−ン幅が得られるが、塗装ノズル取付けベ−スを回転さ
せることで有効スプレ−パタ−ン幅を約９ｃｍまで広げ
ることができた。Here, the coating nozzle 2 was mounted at a position eccentric to 1.5 cm from the rotation axis of the coating nozzle mounting base 1. As a result, the coating nozzle 2 moves on the circumference of a circle having a diameter of 1.5 cm × 2. The atomization conditions of the coating nozzle were set at a discharge rate of 20 cc / min and an atomization pressure of 3 kg / min.
cm 2, about 3cm effective spray painting distance 5 cm - pattern - but down width is obtained, painting nozzle mounting base - effective spray by rotating the scan - pattern - was able to extend the emission width to about 9cm.
【００１７】図２では、（ａ）従来の垂直レシプロに塗
装ノズルを固定した場合の塗装軌跡を、（ｂ）同様のレ
シプロに本発明装置を固定した場合の塗装軌跡を示す。FIG. 2 shows (a) a painting locus when the coating nozzle is fixed to a conventional vertical reciprocating machine, and (b) shows a painting locus when the apparatus of the present invention is fixed to a similar reciprocating machine.
【００１８】図１における駆動モ−タ−６の回転数を４
５０ＲＰＭにセットすると、塗装ノズル取付けベ−ス１
は、歯数比（３２：２４）の関係から３００ＲＰＭで回
転する。かかる塗装ガン駆動装置をレシプロ装置に取り
付け、レシプロ速度を３０ｍ／ｍｉｎで運行させると、
本発明（ｂ）のスプレ−ノズルの移動速度が従来（ａ）
に比べて速くなり、スプレ−パタ−ンの重なりが均一と
なり、ほぼ良好な膜厚分布を得ることができる。The rotational speed of the driving motor 6 in FIG.
When set to 50 RPM, the coating nozzle mounting base 1
Rotates at 300 RPM because of the ratio of the number of teeth (32:24). When such a coating gun driving device is attached to a reciprocating device and operated at a reciprocating speed of 30 m / min,
The moving speed of the spray nozzle of the present invention (b) is lower than that of the conventional (a)
And the overlap of the spray patterns becomes uniform, and a nearly excellent film thickness distribution can be obtained.
【００１９】[0019]
【発明の効果】本発明によれば、従来のスプレ−パタ−
ン幅でも吹付け塗装距離は数センチメ−トルに設定する
ことが可能なので、塗装ノズルがエアスプレ−タイプで
も塗着効率は９０％以上が期待できる。According to the present invention, the conventional spray pattern
Since the spray coating distance can be set to several centimeters even in the spray width, the coating efficiency can be expected to be 90% or more even when the spray nozzle is an air spray type.
【００２０】またスプレ−パタ−ンは、塗装ノズル取付
けベ−スの回転運動とレシプロ運動を合成したスパイラ
ル状の運動軌跡になるため、従来の直線状あるいはスパ
イラル状の運動軌跡になるため、従来の直線状あるいは
ジグザク状の軌跡に比べ、メタリック塗装やパ−ル塗装
などのムラが目立たなくなるなどの効果が期待できる。The spray pattern has a spiral motion trajectory obtained by synthesizing the rotational motion and the reciprocating motion of the coating nozzle mounting base. Therefore, the spray pattern has a conventional linear or spiral motion trajectory. As compared with the linear or zigzag locus, the effect such that unevenness such as metallic coating or pearl coating becomes less noticeable can be expected.
【図１】本発明の塗装ガン駆動装置の一実施例の示す説
明図である。FIG. 1 is an explanatory view showing one embodiment of a coating gun driving device of the present invention.
【図２】従来装置及び本発明装置の塗装軌跡である。FIG. 2 is a painting locus of a conventional apparatus and an apparatus of the present invention.
１ 塗装ノズル取付けベ−ス（歯車一体） ２ 塗装ノズル ３ ベアリング ４ ベアリング ５ 従属歯車 ６ 駆動モ−タ− ７ スプレ−パタ−ン ８ スプレ−ガン移動軌跡 DESCRIPTION OF SYMBOLS 1 Painting nozzle mounting base (gear integrated) 2 Painting nozzle 3 Bearing 4 Bearing 5 Dependent gear 6 Driving motor 7 Spray pattern 8 Spray gun movement locus
Claims (2)
ル取り付けベ−スと、該塗装ノズル取り付けベ−スの回
転軸から偏心した位置に、ベアリングを介して自由に回
転するように取り付けられた塗装ノズルと、該塗装ノズ
ル取り付けベ−スを回転させる駆動装置とを具備するこ
とを特徴とする塗装ガン駆動装置。A coating nozzle mounting base which is rotated by a driving device, and a coating nozzle which is rotatably mounted via a bearing at a position eccentric from a rotation axis of the coating nozzle mounting base. And a driving device for rotating the coating nozzle mounting base.
動する歯車を設け、該歯車と噛み合う従属歯車を駆動装
置に設けて、該塗装ノズル取り付けベ−スと連動する歯
車を該従属歯車で回転させてなる請求項１記載の塗装ガ
ン駆動装置。2. The coating nozzle mounting base is provided with a gear that is interlocked therewith, and a driven gear that meshes with the gear is provided in a driving device, and the gear that is interlocked with the coating nozzle mounting base is a driven gear. The coating gun driving device according to claim 1, which is rotated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10349986A JP2000167441A (en) | 1998-12-09 | 1998-12-09 | Coating gun driving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10349986A JP2000167441A (en) | 1998-12-09 | 1998-12-09 | Coating gun driving device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000167441A true JP2000167441A (en) | 2000-06-20 |
Family
ID=18407464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10349986A Pending JP2000167441A (en) | 1998-12-09 | 1998-12-09 | Coating gun driving device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000167441A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011230075A (en) * | 2010-04-28 | 2011-11-17 | Taikisha Ltd | Coating gun and coating method using the same |
| WO2019227631A1 (en) * | 2018-06-01 | 2019-12-05 | 江苏纽唯盛机电有限公司 | Nozzle rotating mechanism and face steaming device |
-
1998
- 1998-12-09 JP JP10349986A patent/JP2000167441A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011230075A (en) * | 2010-04-28 | 2011-11-17 | Taikisha Ltd | Coating gun and coating method using the same |
| WO2019227631A1 (en) * | 2018-06-01 | 2019-12-05 | 江苏纽唯盛机电有限公司 | Nozzle rotating mechanism and face steaming device |
| KR20190137770A (en) * | 2018-06-01 | 2019-12-11 | 엔비전 일렉트리컬 어플라이언스 컴퍼니 리미티드 | Nozzle rotating mechanism and facial steam device |
| KR102295409B1 (en) | 2018-06-01 | 2021-08-30 | 엔비전 일렉트리컬 어플라이언스 컴퍼니 리미티드 | Nozzle rotating mechanism and facial steam device |
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