JPS60114368A - Powder painting gun - Google Patents
Powder painting gunInfo
- Publication number
- JPS60114368A JPS60114368A JP22150983A JP22150983A JPS60114368A JP S60114368 A JPS60114368 A JP S60114368A JP 22150983 A JP22150983 A JP 22150983A JP 22150983 A JP22150983 A JP 22150983A JP S60114368 A JPS60114368 A JP S60114368A
- Authority
- JP
- Japan
- Prior art keywords
- tip
- gun
- coated
- needle electrode
- painting gun
- 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
Abstract
Description
【発明の詳細な説明】
この考案は自動車、家電製品、その他一般機械器具等の
被塗物を静電粉体塗装Ｔるためのガンに関する５のであ
る。更にσ）べればガンの先端に設けられた放電極と被
塗物との間に直流高電圧を印加して、その間の電界によ
って、ガン先端から噴出された荷電粉体塗料を被塗物ま
で運びそこに被塗物の層を形成するものである。DETAILED DESCRIPTION OF THE INVENTION This invention relates to a gun for applying electrostatic powder coating to objects to be coated such as automobiles, home appliances, and other general machinery and equipment. Furthermore, σ) A high DC voltage is applied between the discharge electrode installed at the tip of the gun and the object to be coated, and the electric field between them causes the charged powder paint ejected from the tip of the gun to be transferred to the object to be coated. The coated material is transported there to form a layer of the material to be coated.
この種の従来の塗装ガンは放電極の針先の位置がガン吐
出口の周縁に対して、それより先に矢出しているυ）、
或いは引込んでいても吐出ロσノ周縁の径が３ｉＪｍμ
の場合、約２〜澹位であり １−
この場合は放電極の斜光から被塗物までの通常の塗装距
離を約２００〜３００ｆｌＬ／Ｉｎにして１５０〜１６
０μ以上の厚塗りをしようとすると針電極から被塗物に
向って流れるイオン電流が増加し１粉体層内で静電反発
を起し、塗装不良になる。In this type of conventional painting gun, the needle tip of the discharge electrode is positioned further than the periphery of the gun discharge port υ).
Or even if it is retracted, the diameter of the circumference of the discharge hole σ is 3iJmμ
1- In this case, the normal coating distance from the oblique light of the discharge electrode to the object to be coated is approximately 200 to 300 flL/In, and the distance is 150 to 16 degrees.
If an attempt is made to apply a coating thicker than 0μ, the ionic current flowing from the needle electrode toward the object to be coated will increase, causing electrostatic repulsion within one powder layer, resulting in poor coating.
この発明の目的は上述のようなガンを改良し、塗装膜の
厚さにして１５０μ以上、例えば５００μ位までの粉体
層を静電反撥現象なしに形成できるような塗装ガンを得
ることである。The purpose of this invention is to improve the gun as described above and to obtain a coating gun that can form a powder layer with a coating film thickness of 150μ or more, for example, up to about 500μ without electrostatic repulsion. .
この発明を添付図面に基いて説明すると、筒体１の粉体
通路２の中央部に針１！極３を設けた粉体塗装ガンに於
いて、該針電極３の先端位置を、繭記筒体１の先端の吐
出口５から、その直径りのＩＡ以上の距離りだけ引込め
たものである。To explain this invention based on the accompanying drawings, a needle 1 is installed in the center of the powder passage 2 of the cylinder 1! In a powder coating gun equipped with a pole 3, the tip position of the needle electrode 3 is retracted from the discharge port 5 at the tip of the cocoon recording cylinder 1 by a distance equal to or more than its diameter IA. be.
なお、図中６は筒体１の先端縁、９．１０は昇圧器、１
１は電源、１２はハンドル、１３は筒体１の中心に設け
られた懸濁気体用ディフューザ、１４はそれ乞筒体１に
支持するアームである。In addition, in the figure, 6 is the tip edge of the cylinder 1, 9.10 is the booster, 1
1 is a power source, 12 is a handle, 13 is a diffuser for suspended gas provided at the center of the cylinder 1, and 14 is an arm that supports the cylinder 1.
この塗装ガンは矛１図に示す如く、被塗物７に対して針
電極３が１５０号〜〜（資）９ｎ／ｆｎ離れるようにし
ておき、その間に高電圧を印加して電界８を生じさせる
。As shown in Figure 1 of this painting gun, the needle electrode 3 is placed at a distance of 150 to 9n/fn from the object 7 to be coated, and a high voltage is applied during that time to generate an electric field 8. let
筒体１内をその吐出口５に向って流れる粉体塗料４は針
電極３の付近を通過する際、荷電される。The powder coating material 4 flowing within the cylinder 1 toward its discharge port 5 is charged when it passes near the needle electrode 3.
その荷電された粉体塗料４を前述の電界により被塗物７
まで運び、その面に付着せしめるものである。The charged powder coating material 4 is applied to the object 7 by the electric field described above.
It is carried to the surface and attached to that surface.
本発明は以上の通りであり、針電極３の先端位置を吐出
０５の位置から、その直径りの１／′２以上の距＠Ｌを
引込めたから、次にのべる実験によって明らかなように
被塗物に向って流れるイオン電流が少くなり、塗料層内
に静電反撥現象を生じさせるおそれが少くなる。The present invention is as described above, and since the tip position of the needle electrode 3 can be retracted from the discharge position 05 by a distance @L of more than 1/2 of its diameter, it is clear from the experiment described below that The ionic current flowing toward the coating material is reduced, and the possibility of electrostatic repulsion occurring within the paint layer is reduced.
矛４図の線図は被塗物７と針電極３の距離り。The line diagram in Figure 4 shows the distance between the object to be coated 7 and the needle electrode 3.
を２５０叛揃としたときの針電極３に印加する電圧Ｖと
、被検物７へ流れるイオン電流工の関係を７５図の実験
装置により測定したものである。The relationship between the voltage V applied to the needle electrode 3 and the ionic current flowing to the test object 7 when the voltage is set to 250 times was measured using the experimental apparatus shown in FIG. 75.
なお、Ａは被塗物７とアースＥとの間に介入した電流計
である。Note that A is an ammeter interposed between the object to be coated 7 and the earth E.
７４図の曲線イは、Ｄ＝４〜宿、Ｌ＝θ〜へとしたとき
の印加電圧Ｖとイオン電流工の関係で、曲線口、曲線ハ
は、それぞれＬ ＝４０ ｍ／ｍ、Ｄ−２０ルへトＬ、
＝、Ｄ＝４０−血としたと舌の印加電圧Ｖとイオン電流
工の関係である。才４図から明らかなように、針１極３
と吐出口５との距離りを大きくすることにより、被塗物
へ流れるイオン電流は大巾に減少する。Curve A in Figure 74 shows the relationship between the applied voltage V and the ion current when D = 4 to 4 and L = θ, and the curve opening and curve C represent the relationship between L = 40 m/m and D-, respectively. 20 L,
=, D=40-Blood, this is the relationship between the applied voltage V of the tongue and the ion current. As is clear from Figure 4, needle 1 pole 3
By increasing the distance between the discharge port 5 and the discharge port 5, the ion current flowing to the object to be coated is greatly reduced.
実用的には、曲線口程度のイオン電流の減少により、塗
料層内の静電反撥現象を防止できる。Practically speaking, electrostatic repulsion within the paint layer can be prevented by reducing the ionic current to the extent of the curve.
従って不発明によれば従来のものより厚い塗料層を被塗
物の表面に形成することができる。Therefore, according to the present invention, a thicker coating layer can be formed on the surface of the object to be coated than conventional coatings.
７１図は不発明の実施例の縦断面図１．＋１１２図は本
発明の一部分の端面図、矛３図は７１図のもの一電気回
路図である。
工・・・筒体
２・・・粉体通路
３・・・針電極
手続補正書
１．事件の表示
昭和団年特願第２２１５０９ 号
２、発明の名称
粉体塗装ガン
３、補正をする者
事件との関係特許出願人
住 所 山ロ県小舒田市大字小野田６２７６番地名称（
０２４）小野田セメント株式会社５、補正の対象 ＃ｉ
釧畜の「発明の詳細な説明」の欄６、補正の内容
■Ｊ 明細書１頁１０行目の
「考案」？
「発明」と補正する。
（２３明ｍ１１４頁１７行目）
「電気回路」の次に
「１矛４図は粉体塗装ガンの実験領置力）ら得られる線
図、７５図は粉体塗装ガンの実験装置」を挿入する。
手続補正書（方式）
特許庁長官 着 杉 和犬 殿
１、事件の表示
昭和あ年特願第２２１５０９ 号
２、発明の名称
粉体塗装ガン
３、補正をする者
事件との関係 特許ＩＢ願人
住 所 山口県小野田市大字小野田８２７６：ｉｉ地名
称（０２４）小！田セメント株式会社４、代理人
６、補正の内容
ｔｌＪ明剣畜矛４頁矛１７行の
「電気回ｗＩ図である。」を
「電気回路図、才４図は粉体塗装ガンの実験装置で）ら
得られる線図、矛５図は粉体塗装ガンの実験装置である
。」
に補正する。
２−Figure 71 is a vertical cross-sectional view of the non-inventive embodiment 1. Figure 112 is an end view of a part of the present invention, and Figure 3 is an electrical circuit diagram of Figure 71. Engineering...Cylinder 2...Powder passage 3...Needle electrode procedure amendment 1. Indication of the case: Showa Dan 2015 Patent Application No. 221509 2, Name of the invention: Powder coating gun 3, Person making the amendment Related to the case: Patent applicant address: 6276 Onoda, Oshoda City, Yamaro Prefecture Name (
024) Onoda Cement Co., Ltd. 5, subject of amendment #i
Senkiku's "Detailed Description of the Invention" Column 6, Contents of Amendment ■J "Invention" on page 1, line 10 of the specification? Amend it to "invention." (Page 23, page 114, line 17) After ``electrical circuit'', ``Figure 1 and 4 are diagrams obtained from the experimental holding force of powder coating gun'', and Figure 75 is the experimental setup for powder coating gun''. insert. Procedural amendment (method) Director of the Patent Office Mr. Wanu Sugi 1, Indication of the case Showa A year patent application No. 221509 2, Name of the invention Powder coating gun 3, Person making the amendment Relationship with the case Patent IB applicant Address 8276 Oaza Onoda, Onoda City, Yamaguchi Prefecture: ii Place name (024) Small! Ta Cement Co., Ltd. 4, Agent 6, Contents of the amendment: ``This is an electrical circuit diagram.'' on page 4, line 17 of TLJ Meiken Kuyoku. The line diagram obtained from ), Figure 5, is an experimental device for a powder coating gun.'' 2-
Claims (1)
設けた塗装ガンに於いて、該針電極（３）の先端位置を
削記筒体（１）の先端から、その直径（Ｄ）の１／２以
上の距１ｌＪＩ（Ｌ）だけ引込めた粉体塗装ガン◎In a coating gun equipped with a needle electrode (3) in the center of the powder passage (2) of the cylinder (1), the tip position of the needle electrode (3) is marked from the tip of the cylinder (1). , a powder coating gun that can be retracted by a distance of 1lJI (L) that is 1/2 or more of its diameter (D)◎
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22150983A JPS60114368A (en) | 1983-11-25 | 1983-11-25 | Powder painting gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22150983A JPS60114368A (en) | 1983-11-25 | 1983-11-25 | Powder painting gun |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60114368A true JPS60114368A (en) | 1985-06-20 |
| JPH0112546B2 JPH0112546B2 (en) | 1989-03-01 |
Family
ID=16767824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22150983A Granted JPS60114368A (en) | 1983-11-25 | 1983-11-25 | Powder painting gun |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60114368A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016128145A (en) * | 2015-01-09 | 2016-07-14 | トヨタ自動車株式会社 | Electrostatic coating device and method for inspection of electrical conductivity thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5243846A (en) * | 1975-10-03 | 1977-04-06 | Senichi Masuda | Device for electrostatic powder coating |
| JPS54145744A (en) * | 1978-05-09 | 1979-11-14 | Onoda Cement Co Ltd | Device for charging powder electrically |
| JPS55124561A (en) * | 1979-03-19 | 1980-09-25 | Kansai Paint Co Ltd | Powder deposition preventing means for electrostatic powder spray gun |
-
1983
- 1983-11-25 JP JP22150983A patent/JPS60114368A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5243846A (en) * | 1975-10-03 | 1977-04-06 | Senichi Masuda | Device for electrostatic powder coating |
| JPS54145744A (en) * | 1978-05-09 | 1979-11-14 | Onoda Cement Co Ltd | Device for charging powder electrically |
| JPS55124561A (en) * | 1979-03-19 | 1980-09-25 | Kansai Paint Co Ltd | Powder deposition preventing means for electrostatic powder spray gun |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016128145A (en) * | 2015-01-09 | 2016-07-14 | トヨタ自動車株式会社 | Electrostatic coating device and method for inspection of electrical conductivity thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0112546B2 (en) | 1989-03-01 |
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