JP2003135997A - Apparatus and method for powder coating - Google Patents
Apparatus and method for powder coatingInfo
- Publication number
- JP2003135997A JP2003135997A JP2001337261A JP2001337261A JP2003135997A JP 2003135997 A JP2003135997 A JP 2003135997A JP 2001337261 A JP2001337261 A JP 2001337261A JP 2001337261 A JP2001337261 A JP 2001337261A JP 2003135997 A JP2003135997 A JP 2003135997A
- Authority
- JP
- Japan
- Prior art keywords
- powder coating
- nozzles
- coated
- main body
- electrostatic
- 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
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、連続して搬送され
る長尺被塗物表面に、帯電させた粉体塗料を静電付着さ
せる粉体塗装装置及び粉体塗装方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a powder coating apparatus and a powder coating method for electrostatically adhering a charged powder coating material onto the surface of a continuously conveyed long coating object.
【０００２】[0002]
【従来技術及びその課題】静電粉体塗装は、通常、スプ
レーガン等に装備された荷電装置により帯電させた粉体
塗料を、予め電気的に設置された被塗物に塗着させて塗
膜を形成させる塗装方法であり、有機溶剤を使用せず、
回収・再利用できることから、環境保全に配慮した塗装
方法である。この静電粉体塗装の荷電機構には、コロナ
荷電方式と摩擦荷電方式があるが、塗着効率が高く、制
御特性や汎用性からコロナ荷電方式が採用されることが
多い。2. Description of the Related Art Electrostatic powder coating is usually carried out by applying a powder coating material charged by a charging device equipped on a spray gun or the like to an object to be electrically installed in advance. It is a coating method that forms a film, without using an organic solvent,
Since it can be collected and reused, it is a painting method that considers the environment. The charging mechanism for electrostatic powder coating includes a corona charging method and a friction charging method, but the corona charging method is often adopted because of its high coating efficiency and control characteristics and versatility.
【０００３】しかしながら、円柱状の細長い鋼線などの
長尺被塗物に対して、従来のコロナ荷電方式のスプレー
ガンを２機用いて被塗物を挟み込むように塗装していた
が、被塗物巾に対してスプレーパターン巾が広いため
に、塗着効率が低くなり、塗装ブース内の下部に粉体が
溜まり易く、該粉体が回収しにくいという問題があっ
た。However, a long corrugated cylindrical steel wire or other long coating object is coated by sandwiching the coating object with two conventional corona charging type spray guns. Since the width of the spray pattern is wider than the width of the material, there is a problem that the coating efficiency is low, the powder easily accumulates in the lower part of the coating booth, and the powder is difficult to collect.
【０００４】本発明の目的は、長尺被塗物表面への静電
粉体塗装の塗着効率を向上させる粉体塗装装置及び粉体
塗装方法を提供することにある。An object of the present invention is to provide a powder coating apparatus and a powder coating method which improve the coating efficiency of electrostatic powder coating on the surface of a long object to be coated.
【０００５】[0005]
【課題を解決するための手段】本発明は、
１．連続して搬送される長尺被塗物表面に、帯電させた
粉体塗料を静電付着させる粉体塗装装置であって、ドー
ナツ状の本体を有し、該本体に取り付けられた複数のノ
ズルもしくはスリット状ノズルと該ノズル毎に設けられ
たコロナ放電電極とを有する静電塗装機を、該静電塗装
機本体の空洞部分のほぼ中心を通って長尺被塗物が搬送
されるように備えていることを特徴とする粉体塗装装
置、
２．複数のノズルが、ドーナツ状の本体にほぼ等間隔で
取り付けられ、且つ各ノズルの吐出口が長尺被塗物に向
かって設けられている１項記載の粉体塗装装置、
３． ダスト吸引装置を設けてなる１項記載の粉体塗装
装置、
４．連続して搬送される長尺被塗物表面に、１ないし３
項のいずれか１項記載の粉体塗装装置を用いて、帯電さ
せた粉体塗料を静電付着させてなる粉体塗装方法に関す
る。The present invention includes: A powder coating device for electrostatically adhering charged powder coating material onto a continuously conveyed surface of a coated object, comprising a donut-shaped main body, and a plurality of nozzles attached to the main body. Alternatively, an electrostatic coating machine having a slit-shaped nozzle and a corona discharge electrode provided for each nozzle may be used so that a long object is conveyed through substantially the center of the hollow portion of the electrostatic coating machine body. 1. A powder coating device characterized in that 2. The powder coating apparatus according to claim 1, wherein a plurality of nozzles are attached to the doughnut-shaped main body at substantially equal intervals, and the discharge ports of the nozzles are provided toward the long object to be coated. 3. The powder coating apparatus according to item 1, which is provided with a dust suction device. 1 to 3 on the surface of a long continuous object which is continuously conveyed.
The present invention relates to a powder coating method in which charged powder coating material is electrostatically adhered using the powder coating device according to any one of items.
【０００６】[0006]
【発明の実施の形態】以下、図面を用いて本発明の実施
の形態を説明する。図１は、本発明の実施の一形態を示
す粉体塗装装置の概要図である。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic diagram of a powder coating apparatus showing an embodiment of the present invention.
【０００７】図１において静電塗装機１は、ドーナツ状
本体２と、該本体２に一体的に取り付けられたノズル３
ａ〜３ｆと、これらノズルの先端に配置されたコロナ放
電電極４ａ〜４ｆとを備えている。長尺被塗物５は、予
め電気的に接地されており、ドーナツ本体２の空洞部分
のほぼ中心を通って、矢印の方向に搬送されるよう設置
されている。In FIG. 1, an electrostatic coating machine 1 includes a donut-shaped main body 2 and a nozzle 3 integrally attached to the main body 2.
a to 3f and corona discharge electrodes 4a to 4f arranged at the tips of these nozzles. The long coating object 5 is electrically grounded in advance, and is installed so as to be conveyed in the direction of the arrow through substantially the center of the hollow portion of the donut body 2.
【０００８】ノズル３ａ〜３ｆは、ドーナツ状本体２に
ほぼ等間隔で取り付けられ、且つ各ノズル３ａ〜３ｆの
吐出口が長尺被塗物５に向かって設けられている。この
ように設置することで、被塗物５表面の粉体粒子の濃度
を高めて、塗着効率を向上させるものである。各ノズル
３ａ〜３ｆには、スプレーパターン巾の小さい微小口径
を有するものが好適であり、該ノズルとしてはスリット
型、ディフューザ型等を用いることができる。The nozzles 3a to 3f are attached to the doughnut-shaped main body 2 at substantially equal intervals, and the discharge ports of the nozzles 3a to 3f are provided toward the long coating object 5. By installing in this way, the concentration of the powder particles on the surface of the article to be coated 5 is increased and the coating efficiency is improved. It is preferable that each of the nozzles 3a to 3f has a small diameter with a small spray pattern width, and a slit type, a diffuser type or the like can be used as the nozzle.
【０００９】また上記ノズル３ａ〜３ｆは、ドーナツ状
本体２にスリット状に設けられるノズルに変更すること
も可能である。Further, the nozzles 3a to 3f can be replaced with nozzles provided in the doughnut-shaped main body 2 in a slit shape.
【００１０】コロナ放電電極４ａ〜４ｆは、高電圧発生
器（図示せず）によって印加され、コロナ放電を発生さ
せ、各ノズル３ａ〜３ｆから吐出される粉体塗料６を帯
電させる。帯電した粉体塗料６は、被塗物５の表面に静
電付着する。粉体塗料６は、塗料（及びエア）搬送ホー
ス７によって各ノズル３ａ〜３ｆへ供給される。Corona discharge electrodes 4a to 4f are applied by a high voltage generator (not shown) to generate corona discharge, and the powder coating material 6 discharged from each nozzle 3a to 3f is charged. The charged powder coating material 6 electrostatically adheres to the surface of the article 5 to be coated. The powder paint 6 is supplied to the nozzles 3a to 3f by a paint (and air) transfer hose 7.
【００１１】上記塗装によって被塗物５に付着せず、被
塗物５の近傍に浮遊する粉体塗料６は、ダスト吸引装置
８によって回収される。ダスト吸引装置８は、局所的に
吸引する装置であり、排気ファン（図示せず）の駆動に
よって粉体塗料６を吸引する吸い込み部位９と吸引ダク
ト１０を備えている。上記静電塗装機１に該ダスト吸引
装置８を併設することにより、回収効率を向上させるこ
とが可能である。The powder coating material 6 which does not adhere to the article 5 to be coated and floats in the vicinity of the article 5 to be coated by the above coating is collected by the dust suction device 8. The dust suction device 8 is a device that locally sucks, and includes a suction portion 9 that sucks the powder coating material 6 by driving an exhaust fan (not shown) and a suction duct 10. By installing the dust suction device 8 side by side with the electrostatic coating machine 1, it is possible to improve the collection efficiency.
【００１２】[0012]
【発明の効果】本発明によれば、鋼線などの長尺被塗物
表面への静電粉体塗装の塗着効率を大幅に向上させるこ
とが可能となる。According to the present invention, it is possible to significantly improve the coating efficiency of electrostatic powder coating on the surface of a long object such as a steel wire.
【図１】本発明の実施の一形態を示す粉体塗装装置の概
要図である。FIG. 1 is a schematic diagram of a powder coating apparatus showing an embodiment of the present invention.
１ 静電塗装機 ２ ドーナツ状本体 ３ａ〜３ｆ ノズル ４ａ〜４ｆ コロナ放電電極 ５ 被塗物 ６ 粉体塗料 ７ 塗料搬送ホース ８ ダスト吸引装置 ９ 吸い込み部位 １０ 吸引ダクト 1 electrostatic coating machine 2 Donut-shaped body 3a-3f nozzle 4a-4f Corona discharge electrode 5 Objects to be coated 6 powder coating 7 Paint transfer hose 8 Dust suction device 9 Inhalation site 10 Suction duct
───────────────────────────────────────────────────── フロントページの続き Ｆターム(参考） 4D075 AA09 AA34 AA39 AA52 AA65 AA71 AA85 DA01 DB02 EA02 4F034 AA01 BA01 BA05 BA07 BA36 BB28 CA03 CA22 DA05 DA17 ─────────────────────────────────────────────────── ─── Continued front page F-term (reference) 4D075 AA09 AA34 AA39 AA52 AA65 AA71 AA85 DA01 DB02 EA02 4F034 AA01 BA01 BA05 BA07 BA36 BB28 CA03 CA22 DA05 DA17
Claims (4)
電させた粉体塗料を静電付着させる粉体塗装装置であっ
て、ドーナツ状の本体を有し、該本体に取り付けられた
複数のノズルもしくはスリット状ノズルと該ノズル毎に
設けられたコロナ放電電極とを有する静電塗装機を、該
静電塗装機本体の空洞部分のほぼ中心を通って長尺被塗
物が搬送されるように備えていることを特徴とする粉体
塗装装置。1. A powder coating apparatus for electrostatically depositing charged powder coating material on the surface of a long object to be continuously conveyed, which has a donut-shaped main body and is attached to the main body. An electrostatic coating machine having a plurality of nozzles or slit-shaped nozzles and a corona discharge electrode provided for each nozzle, and a long object to be coated is passed through substantially the center of the hollow portion of the electrostatic coating machine body. A powder coating device characterized by being provided so as to be transported.
等間隔で取り付けられ、且つ各ノズルの吐出口が長尺被
塗物に向かって設けられている請求項１記載の粉体塗装
装置。2. The powder coating apparatus according to claim 1, wherein a plurality of nozzles are attached to the doughnut-shaped main body at substantially equal intervals, and the discharge ports of each nozzle are provided toward the elongated object to be coated. .
の粉体塗装装置。3. The powder coating apparatus according to claim 1, further comprising a dust suction device.
求項１ないし３のいずれか１項記載の粉体塗装装置を用
いて、帯電させた粉体塗料を静電付着させてなる粉体塗
装方法。4. A charged powder coating material is electrostatically adhered to the surface of a long object to be continuously conveyed by using the powder coating device according to any one of claims 1 to 3. Powder coating method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001337261A JP2003135997A (en) | 2001-11-02 | 2001-11-02 | Apparatus and method for powder coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001337261A JP2003135997A (en) | 2001-11-02 | 2001-11-02 | Apparatus and method for powder coating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003135997A true JP2003135997A (en) | 2003-05-13 |
Family
ID=19151933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001337261A Pending JP2003135997A (en) | 2001-11-02 | 2001-11-02 | Apparatus and method for powder coating |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2003135997A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010005534A (en) * | 2008-06-26 | 2010-01-14 | Neturen Co Ltd | Coating apparatus for steel bar and coating method |
| JP2012232222A (en) * | 2011-04-28 | 2012-11-29 | Susumu Nihongi | Powder coating apparatus |
| JP2014113543A (en) * | 2012-12-10 | 2014-06-26 | Apic Yamada Corp | Thin film forming device and organic el element |
| US9831187B2 (en) | 2012-11-30 | 2017-11-28 | Apic Yamada Corporation | Apparatus and method for electrostatic spraying or electrostatic coating of a thin film |
-
2001
- 2001-11-02 JP JP2001337261A patent/JP2003135997A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010005534A (en) * | 2008-06-26 | 2010-01-14 | Neturen Co Ltd | Coating apparatus for steel bar and coating method |
| JP2012232222A (en) * | 2011-04-28 | 2012-11-29 | Susumu Nihongi | Powder coating apparatus |
| US9831187B2 (en) | 2012-11-30 | 2017-11-28 | Apic Yamada Corporation | Apparatus and method for electrostatic spraying or electrostatic coating of a thin film |
| JP2014113543A (en) * | 2012-12-10 | 2014-06-26 | Apic Yamada Corp | Thin film forming device and organic el element |
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