JP2652409B2 - Powder electrostatic coating equipment - Google Patents
Powder electrostatic coating equipmentInfo
- Publication number
- JP2652409B2 JP2652409B2 JP63121249A JP12124988A JP2652409B2 JP 2652409 B2 JP2652409 B2 JP 2652409B2 JP 63121249 A JP63121249 A JP 63121249A JP 12124988 A JP12124988 A JP 12124988A JP 2652409 B2 JP2652409 B2 JP 2652409B2
- Authority
- JP
- Japan
- Prior art keywords
- powder
- workpiece
- spray gun
- insulating plate
- coated
- 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 - Lifetime
Links
Landscapes
- Electrostatic Spraying Apparatus (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 この発明は、粉体静電塗装装置、例えば自動車用のエ
アコンのコンデンサのような被塗装物であって、塗料が
通過しうる間隙を有する被塗装物を塗装するのに用いら
れる粉体静電塗装装置に関する。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an object to be coated such as a capacitor of a powder electrostatic coating apparatus, for example, an air conditioner for an automobile, which has a gap through which the paint can pass. The present invention relates to a powder electrostatic coating apparatus used for coating an object.
従来の技術 一般に、粉体静電塗装装置は、被塗装物にプラス、粉
体スプレーガンにマイナスの高電圧をかけて両者の間に
静電界を生じさせ、粉体スプレーガンからマイナスに帯
電させた塗料をスプレーして静電界にのせて運び被塗装
物に付着させるものである。2. Description of the Related Art In general, a powder electrostatic coating apparatus applies a high voltage to a workpiece to be coated and a negative voltage to a powder spray gun to generate an electrostatic field between the two, and charges the powder spray gun to a negative charge. The sprayed paint is sprayed on an electrostatic field to be carried and adhered to an object to be coated.
発明が解決しようとする課題 上記装置によって被塗装物に塗装を行うと、被塗装物
における粉体スプーガンのある側には塗料がよく付着す
るが、その反対側には塗料が付着しにくいという問題点
がある。Problems to be Solved by the Invention When the object to be coated is coated by the above apparatus, the paint adheres well to the side of the object where the powder spoon is located, but the paint is difficult to adhere to the opposite side. There is a point.
この発明の目的は、上記問題点を解決した粉体静電塗
装装置を提供することにある。An object of the present invention is to provide a powder electrostatic coating apparatus which solves the above problems.
課題を解決するための手段 この発明による粉体静電塗装装置は、電気的良導体製
被塗装物にプラス、粉体スプレーガンにマイナスの高電
圧をかけて両者の間に静電界を生じさせ、粉体スプレー
ガンからマイナスに帯電させた塗料をスプレーして静電
界にのせて運び被塗装物に付着させる粉体静電塗装装置
において、被塗装物が、粉体を通過させうる間隙を有し
ており、被塗装物を挟んで粉体スプレーガンの反対側に
電気絶縁板が被塗装物と向き合うように配置されている
ものである。Means for Solving the Problems The electrostatic powder coating apparatus according to the present invention generates a static electric field between the both by applying a high voltage to the object to be coated made of an electrically good conductor and applying a high negative voltage to the powder spray gun. In a powder electrostatic coating apparatus in which a negatively charged paint is sprayed from a powder spray gun, carried on an electrostatic field, and adhered to the workpiece, the workpiece has a gap through which the powder can pass. The electric insulating plate is arranged on the opposite side of the powder spray gun with the object to be coated therebetween so as to face the object to be coated.
作 用 被塗装物がプラスに帯電されていることに基づいて、
電気絶縁板の被塗装物と相対する側の面がマイナスに帯
電される。Action Based on the fact that the workpiece is positively charged,
The surface of the electric insulating plate facing the object to be coated is negatively charged.
粉体スプレーガンからスプレーされた塗料の一部は、
被塗装物のまわり、またはその隙間から被塗装物を越え
て拡がるが、電気絶縁板の被塗装物と相対する側の面に
衝突すると、その面がマイナスに帯電されていることに
よってはね返されて被塗装物の方に向けられ、被塗装物
における粉体スプーガンのある側と反対側に付着する。Some of the paint sprayed from the powder spray gun
It spreads around the object to be painted or from the gap between the objects, but when it collides with the surface of the electrical insulating plate facing the object to be painted, it is repelled by the negatively charged surface. It is directed toward the object to be coated, and adheres to the object to be coated on the side opposite to the side where the powder spoon is located.
実 施 例 この発明の実施例を図面を参照してつぎに説明する。Embodiment An embodiment of the present invention will be described below with reference to the drawings.
＜実施例１＞ 粉体静電塗装装置は、第１図に示すように、被塗装物
Ｗを挟んで粉体スプレーガン11の反対側に電気絶縁板12
が被塗装物Ｗと向き合うように配置されているものであ
る。<Embodiment 1> As shown in Fig. 1, a powder electrostatic coating apparatus includes an electric insulating plate 12 on the opposite side of a powder spray gun 11 with a workpiece W interposed therebetween.
Are arranged so as to face the workpiece W.
被塗装物Ｗと電気絶縁板11は、互いに10mmの距離をお
いて治具13によって垂直に吊下げられている。粉体スプ
レーガン11は、被塗装物Ｗに向かって横向きに配置され
ている。治具13は、鉄製で、電極を兼ねている。The work W and the electrical insulating plate 11 are suspended vertically by a jig 13 at a distance of 10 mm from each other. The powder spray gun 11 is disposed laterally toward the workpiece W. The jig 13 is made of iron and also serves as an electrode.
被塗装物Ｗとして、コンデンサが示されている。コン
デンサは、蛇行状偏平管21と、その直管部の隣合うもの
同士の間に介在されているコルゲートフィン22とを有し
ている。偏平管21およびコルゲートフィン22は、いずれ
もアルミニウム製である。コンデンサの大きさは、縦40
0mm、横600mm、厚み28mmである。A capacitor is shown as the workpiece W. The condenser has a meandering flat tube 21 and corrugated fins 22 interposed between adjacent straight tube portions. Both the flat tube 21 and the corrugated fin 22 are made of aluminum. The size of the capacitor is 40
It is 0 mm, 600 mm wide and 28 mm thick.
電気絶縁板12は、コンデンサより一回り大きい方形状
のものであり、塩化ビニル製である。The electric insulating plate 12 has a rectangular shape slightly larger than the capacitor, and is made of vinyl chloride.
上記装置において、電気絶縁板12が無い場合と、ある
場合について、同一条件の基に比較試験を行った。その
結果を表１に電気絶縁板12が無い場合を、表２に電気絶
縁板12がある場合をそれぞれ示す。試験条件はつぎの通
りである。In the above apparatus, a comparative test was performed under the same conditions with and without the electric insulating plate 12 under the same conditions. The results are shown in Table 1 when there is no electric insulating plate 12, and in Table 2 when there is the electric insulating plate 12. The test conditions are as follows.
試験条件 粉体スプレーガンと被塗装物間の距離;100〜200mm 粉体スプレーガン；横向き 印加電圧;70KV 塗装時間;30秒（３パス） 被塗装物表面積;4m2 塗料吐出量;145g 塗料は、ポリエステル系（50wt％、平均粒径40μｍ）
のものである。また、被塗装物Ｗと電気絶縁板12の距離
は10mmである。Test conditions Distance between powder spray gun and workpiece; 100-200mm Powder spray gun; sideways Applied voltage; 70KV Painting time; 30 seconds (3 passes) Surface area of workpiece; 4m 2 Paint output; , Polyester type (50wt%, average particle size 40μm)
belongs to. The distance between the object to be coated W and the electric insulating plate 12 is 10 mm.
上記表において、表裏とは、被塗装物Ｗにおける粉体
スプレーガン11がある側を表、これと反対側を裏とい
う。また、厚み方向付き方とは、被塗装物Ｗの表面およ
び裏面側からの距離を示す。 In the above table, the front and back are the side of the workpiece W where the powder spray gun 11 is located, and the opposite side is the back. In addition, the thickness direction indicates the distance from the front surface and the back surface of the workpiece W.
上記表からあきらかなように、電気絶縁板12がある場
合の方が、無い場合より、塗装性能の向上が図られてい
る。As is clear from the above table, the coating performance is improved when the electric insulating plate 12 is provided than when the electric insulating plate 12 is not provided.
なお、被塗装物Ｗと電気絶縁板12の距離は10mmで、一
定としたが、別の試験により、その距離が小さいほど塗
装性能の向上がみられ、その距離が100mmを越えると、
塗装性能が向上しないことが確かめられている。The distance between the object to be coated W and the electric insulating plate 12 was 10 mm, which was fixed.However, according to another test, the coating performance was improved as the distance was smaller, and when the distance exceeded 100 mm,
It has been confirmed that the coating performance does not improve.
＜実施例２＞ 実施例１では、被塗装物Ｗと電気絶縁板12はいずれも
垂直に、粉体スプレーガン11は横向きに配されていた
が、実施例２では、第２図に示すように、被塗装物Ｗと
電気絶縁板12はいずれも水平に、粉体スプレーガン11下
向きに配されている。すなわち、水平に配された電気絶
縁板12の上に水平バー14を介して被塗装物Ｗがのせら
れ、被塗装物Ｗの上方に粉体スプレーガン11が垂直下向
きに配されている。水平バー14は塩化ビニル製で、その
厚みは10mmである。<Embodiment 2> In the first embodiment, the workpiece W and the electric insulating plate 12 are both arranged vertically and the powder spray gun 11 is arranged horizontally. In the second embodiment, as shown in FIG. The workpiece W and the electric insulating plate 12 are both horizontally disposed with the powder spray gun 11 facing downward. That is, an object W to be coated is placed on a horizontally arranged electric insulating plate 12 via a horizontal bar 14, and a powder spray gun 11 is arranged vertically downward above the object W to be coated. The horizontal bar 14 is made of vinyl chloride and has a thickness of 10 mm.
実施例２の場合も、実施例１の場合と同様に、比較試
験を行った。その結果を表３に電気絶縁板12が無い場合
を、表４にある場合をそれぞれ示す。試験条件はつぎの
通りである。In the case of Example 2, a comparative test was performed in the same manner as in Example 1. The results are shown in Table 3 when there is no electric insulating plate 12 and when Table 4 shows the case. The test conditions are as follows.
試験条件 粉体スプレーガンと被塗装物間の距離;100〜150mm 粉体スプレーガン；下向き 印加電圧;70KV 塗料時間;30秒（３パス） 被塗装物表面積;4m2 塗装吐出量;169.2g/min また、塗料も実施例１の場合と同じものを用いた。Test conditions Distance between powder spray gun and workpiece; 100-150mm Powder spray gun; downward Applied voltage; 70KV Paint time; 30 seconds (3 passes) Surface area of workpiece; 4m 2 Paint discharge rate: 169.2g / min The same paint as in Example 1 was used.
発明の効果 この発明によれば、被塗装物における粉体スプーガン
のある側には勿論、その反対側にも塗料をよく付着させ
ることができる。 Effect of the Invention According to the present invention, the coating material can be well adhered not only on the side of the object to be coated with the powder spoon but also on the opposite side.
第１図はこの発明の実施例１を示す斜視図、第２図はこ
の発明の実施例２を示す斜視図である。 11……粉体スプレーガン、12……電気絶縁板、Ｗ……被
塗装物。FIG. 1 is a perspective view showing a first embodiment of the present invention, and FIG. 2 is a perspective view showing a second embodiment of the present invention. 11: powder spray gun, 12: electric insulating plate, W: object to be coated.
Claims (1)
スプレーガン11にマイナスの高電圧をかけて両者の間に
静電界を生じさせ、粉体スプレーガン11からマイナスに
帯電させた塗料をスプレーして静電界にのせて運び被塗
装物Ｗに付着させる粉体静電塗装装置において、 被塗装物Ｗが、粉体を通過させうる間隙を有しており、
被塗装物Ｗを挟んで粉体スプレーガン11の反対側に電気
絶縁板12が被塗装物Ｗと向き合うように配置されている
粉体静電塗装装置。A positive high voltage is applied to an object to be coated W made of an electrically good conductor and a negative high voltage is applied to a powder spray gun 11 to generate an electrostatic field therebetween, and the powder spray gun 11 is negatively charged. In a powder electrostatic coating apparatus in which a paint is sprayed, placed on an electrostatic field, and carried to adhere to the workpiece W, the workpiece W has a gap through which the powder can pass;
A powder electrostatic coating apparatus in which an electric insulating plate 12 is arranged on the opposite side of a powder spray gun 11 across a workpiece W so as to face the workpiece W.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63121249A JP2652409B2 (en) | 1988-05-18 | 1988-05-18 | Powder electrostatic coating equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63121249A JP2652409B2 (en) | 1988-05-18 | 1988-05-18 | Powder electrostatic coating equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01293153A JPH01293153A (en) | 1989-11-27 |
| JP2652409B2 true JP2652409B2 (en) | 1997-09-10 |
Family
ID=14806590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63121249A Expired - Lifetime JP2652409B2 (en) | 1988-05-18 | 1988-05-18 | Powder electrostatic coating equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2652409B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0622392U (en) * | 1992-07-03 | 1994-03-22 | 三共生興株式会社 | Flocked rug |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60104258U (en) * | 1983-12-16 | 1985-07-16 | 株式会社 ア−ル・エイチ・サ−ビス | electrostatic painting equipment |
-
1988
- 1988-05-18 JP JP63121249A patent/JP2652409B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01293153A (en) | 1989-11-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4673416A (en) | Air cleaning apparatus | |
| JP2652409B2 (en) | Powder electrostatic coating equipment | |
| US5169673A (en) | Method and apparatus for electrostatically spray painting objects in a spray paint booth | |
| CN101480639A (en) | Device for neutralizing static electricity | |
| US2632716A (en) | Method of coating articles | |
| US4673132A (en) | Spraying apparatus | |
| JPS6219033B2 (en) | ||
| JP3362230B2 (en) | Electrostatic powder coating equipment | |
| JPH0422449A (en) | Method for preventing adhesion of dust in wet electric precipitator | |
| JPS596705B2 (en) | Electrostatic coating method for defective conductive articles | |
| JPH0256261A (en) | Electrostatic coating apparatus of powder | |
| JPS6012156A (en) | Electrostatic painting apparatus | |
| JPS6012160A (en) | Electrostatic painting apparatus | |
| EP1461160B1 (en) | Device for electrostatic painting of metallic strips with increase deposition efficiency | |
| JPS6012091B2 (en) | Micron Oiler oil spot prevention device | |
| JPH0424114B2 (en) | ||
| JPH0924306A (en) | Electrostatic coating apparatus | |
| JPS5933486Y2 (en) | Electrostatic powder coating equipment | |
| JPH0938527A (en) | Powder coating method for material to be coated | |
| CA1088298A (en) | Process and apparatus for the electrostatic deposition of powder to a grounded metallic substrate | |
| JPH03249963A (en) | Method and equipment for coating electrostatic powder | |
| JP5405616B2 (en) | Fine particle coating method and fine particle coating system | |
| JPH0315497B2 (en) | ||
| JPH1034027A (en) | Gun for forming electrostatic film and electrostatic film forming device | |
| JPH0424115B2 (en) |