JPH0810659A - Rotational spraying type electrostatic coating apparatus - Google Patents
Rotational spraying type electrostatic coating apparatusInfo
- Publication number
- JPH0810659A JPH0810659A JP6174831A JP17483194A JPH0810659A JP H0810659 A JPH0810659 A JP H0810659A JP 6174831 A JP6174831 A JP 6174831A JP 17483194 A JP17483194 A JP 17483194A JP H0810659 A JPH0810659 A JP H0810659A
- Authority
- JP
- Japan
- Prior art keywords
- feed tube
- paint
- rotary
- atomizing head
- high voltage
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
- B05B3/02—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
- B05B3/10—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member, i.e. the spraying being effected by centrifugal forces
- B05B3/1064—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member, i.e. the spraying being effected by centrifugal forces the liquid or other fluent material to be sprayed being axially supplied to the rotating member through a hollow rotating shaft
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
- B05B3/02—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
- B05B3/10—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member, i.e. the spraying being effected by centrifugal forces
- B05B3/1007—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member, i.e. the spraying being effected by centrifugal forces characterised by the rotating member
- B05B3/1014—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member, i.e. the spraying being effected by centrifugal forces characterised by the rotating member with a spraying edge, e.g. like a cup or a bell
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
- B05B3/02—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
- B05B3/10—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member, i.e. the spraying being effected by centrifugal forces
- B05B3/1092—Means for supplying shaping gas
Landscapes
- Electrostatic Spraying Apparatus (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、例えば自動車のボディ
等を塗装するのに用いて好適な回転霧化型静電塗装装置
に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary atomizing type electrostatic coating apparatus suitable for coating automobile bodies and the like.
【０００２】[0002]
【従来の技術】一般に、回転霧化型静電塗装装置は、筒
状の塗装機本体と、該塗装機本体に設けられたエアモー
タと、該エアモータの軸方向に挿通され、該エアモータ
によって回転せしめられる回転軸と、前記塗装機本体外
に位置して該回転軸の先端側に設けられ、ベル型または
ディスク型等からなる回転霧化頭と、前記回転軸内に挿
通され、先端側が該回転霧化頭内に延在するフィードチ
ューブと、前記回転霧化頭にフィードチューブを介して
供給される塗料に高電圧を印加する高電圧発生装置とか
ら構成されている。そして、フィードチューブを回転軸
内に同軸に挿通させることによって、塗装機本体の小型
化を図っている。2. Description of the Related Art In general, a rotary atomizing type electrostatic coating apparatus has a cylindrical coating machine main body, an air motor provided in the main body of the coating machine, an axial direction of the air motor, and is rotated by the air motor. A rotary atomizing head, which is located outside the coating machine main body and is provided on the tip side of the rotary axis, and which is a bell-type or disk-type rotary atomizing head; It comprises a feed tube extending into the atomizing head and a high voltage generator for applying a high voltage to the paint supplied to the rotary atomizing head via the feed tube. The feed tube is coaxially inserted into the rotary shaft to reduce the size of the coating machine body.
【０００３】また、この塗装装置においては、前記該回
転霧化頭を高速回転させると共にエアモータと回転霧化
頭に高電圧を印加し、この状態で回転霧化頭に塗料を供
給することによって当該塗料を帯電霧化し、霧化された
塗料粒子を電気力線に沿って被塗物に飛行塗着させるよ
うになっている。In this coating apparatus, the rotary atomizing head is rotated at a high speed, a high voltage is applied to the air motor and the rotary atomizing head, and paint is supplied to the rotary atomizing head in this state. The paint is atomized by electrification, and the atomized paint particles are applied to the object to be coated by flight along the lines of electric force.
【０００４】[0004]
【発明が解決しようとする課題】ところで、上述した従
来技術による直接帯電方式の回転霧化型静電塗装装置に
おいては、使用する塗料は高抵抗な溶剤系のクリア塗料
（透明塗料）とソリッド塗料（顔料を含む塗料）が用い
られているが、ソリッド塗料においては図７および図８
に示すような問題が生じている。By the way, in the above-mentioned direct charging type rotary atomization type electrostatic coating apparatus according to the prior art, the paints to be used are high resistance solvent-based clear paint (transparent paint) and solid paint. (Paint containing pigment) is used, but solid paint is shown in FIGS.
There is a problem as shown in.
【０００５】即ち、従来技術による静電塗装装置では、
回転霧化頭から噴霧される塗料を高電圧に帯電させるた
めに、該回転霧化頭とエアモータに高電圧を印加しなけ
ればならず、回転軸とフィードチューブ１０１は金属材
料（ステンレス・スチール、スチール合金および銅合金
（真鍮））によって形成していた。That is, in the electrostatic coating apparatus according to the prior art,
In order to charge the paint sprayed from the rotary atomizing head to a high voltage, a high voltage must be applied to the rotary atomizing head and the air motor, and the rotary shaft and the feed tube 101 are made of a metal material (stainless steel, It was made of steel alloy and copper alloy (brass).
【０００６】このため、フィードチューブ１０１には高
電圧が印加され、塗料中に高電圧による電流が流れてい
るから、フィードチューブ１０１内の高電圧部位とアー
ス部位との間に電気分解が生じ、図７に示すように、塗
料中の顔料等が固形化し、「ブツ」と呼ばれる顔料塊１
０２，１０２，…となって発生する。Therefore, since a high voltage is applied to the feed tube 101 and a current due to the high voltage flows in the paint, electrolysis occurs between the high voltage portion in the feed tube 101 and the ground portion, As shown in FIG. 7, the pigment or the like in the paint is solidified and the pigment mass 1 called “butsu”
02, 102, ...
【０００７】そして、この顔料塊１０２が発生している
フィードチューブ１０１の塗料で塗装を行うと、図８に
示すように、該各顔料塊１０２が被塗物Ｈの塗膜１０３
内に混入して塗着され、該被塗物Ｈの塗装面に凹凸を発
生させ、塗装面の仕上がり品質を大幅に低下させるとい
う問題がある。When the paint of the feed tube 101 in which the pigment lumps 102 are generated is coated, each of the pigment lumps 102 is coated with the coating film 103 of the article H as shown in FIG.
There is a problem that it mixes in the inside and is applied to form unevenness on the coated surface of the article to be coated H, and the finish quality of the coated surface is significantly deteriorated.
【０００８】本発明は上述した従来技術の問題に鑑みな
されたもので、顔料を含む溶剤系塗料を用いた場合で
も、被塗物の塗装面の仕上がり品質を向上できるように
した回転霧化型静電塗装装置を提供することを目的とす
る。The present invention has been made in view of the above-mentioned problems of the prior art, and is a rotary atomization type which is capable of improving the finish quality of the coated surface of the object to be coated even when a solvent-based coating material containing a pigment is used. An object is to provide an electrostatic coating device.
【０００９】[0009]
【課題を解決するための手段】上述した課題を解決する
ために、本発明による回転霧化型静電塗装装置は、筒状
の塗装機本体と、該塗装機本体に設けられたエアモータ
と、該エアモータの軸方向に挿通され、該エアモータに
よって回転せしめられる回転軸と、前記塗装機本体外に
位置して該回転軸の先端側に設けられた回転霧化頭と、
前記回転軸内に挿通され、先端側が該回転霧化頭内に延
在するフィードチューブと、前記回転霧化頭に供給され
る塗料を高電圧に帯電させる高電圧発生装置とから構成
する。In order to solve the above-mentioned problems, a rotary atomizing type electrostatic coating apparatus according to the present invention comprises a tubular coating machine main body, an air motor provided in the coating machine main body, A rotary shaft that is inserted in the axial direction of the air motor and is rotated by the air motor; a rotary atomizing head that is located outside the coating machine main body and that is provided on the tip side of the rotary shaft;
The feed tube is inserted into the rotary shaft and has a tip end side extending into the rotary atomizing head, and a high voltage generator for charging the paint supplied to the rotary atomizing head to a high voltage.
【００１０】そして、請求項１の発明では、前記フィー
ドチューブを絶縁材料によって形成したことにある。In the invention of claim 1, the feed tube is made of an insulating material.
【００１１】また、請求項２の発明では、前記フィード
チューブの少なくともチューブ内壁面を絶縁材料によっ
てコーティングしたことにある。According to the invention of claim 2, at least the inner wall surface of the feed tube is coated with an insulating material.
【００１２】また、請求項３の発明では、前記回転軸内
に複数本のフィードチューブを挿通する構成にも適用で
きる。The invention of claim 3 can also be applied to a structure in which a plurality of feed tubes are inserted into the rotary shaft.
【００１３】さらに、請求項４の発明では、前記回転軸
内に複数本のフィードチューブを同軸に挿通する構成に
も適用できる。Furthermore, the invention of claim 4 can be applied to a configuration in which a plurality of feed tubes are coaxially inserted into the rotary shaft.
【００１４】[0014]
【作用】請求項１の発明のように、フィードチューブを
絶縁材料によって形成しているから、塗料を帯電させる
ために、回転霧化頭およびエアモータに高電圧発生装置
から高電圧を印加した場合でも、該フィードチューブ内
に高電圧が加わることなく、高電圧部位とアース部位と
が発生するのを防止できる。そして、該フィードチュー
ブ内にある塗料が顔料を含む溶剤系塗料の場合であって
も、該塗装内に顔料塊が発生するのを防止できる。Since the feed tube is made of the insulating material as in the first aspect of the invention, even when a high voltage is applied from the high voltage generator to the rotary atomizing head and the air motor to charge the paint. It is possible to prevent generation of a high voltage portion and a ground portion without applying a high voltage to the feed tube. Even if the paint in the feed tube is a solvent-based paint containing a pigment, it is possible to prevent pigment lumps from being generated in the paint.
【００１５】また、請求項２の発明のように、フィード
チューブの少なくとも内壁面を絶縁材料によってコーテ
ィングすることにより、該フィードチューブ内壁面に高
電圧が加わるのを防止し、該フィードチューブ内に高電
圧部位とアース部位とが発生するのを防止できる。そし
て、フィードチューブ内の塗料中にある塗料が顔料を含
む溶剤系塗料の場合には、該塗装内に顔料塊が発生する
のを防止できる。According to the second aspect of the present invention, by coating at least the inner wall surface of the feed tube with an insulating material, it is possible to prevent a high voltage from being applied to the inner wall surface of the feed tube, and to prevent high voltage inside the feed tube. It is possible to prevent generation of a voltage part and a ground part. When the paint in the paint in the feed tube is a solvent-based paint containing a pigment, it is possible to prevent pigment lumps from being generated in the paint.
【００１６】また、請求項３の発明のように、フィード
チューブを複数本で構成することにより、束状フィード
チューブ式の塗装機として構成したものであっても、フ
ィードチューブ内の塗料に顔料塊が発生するのを防止す
ることができる。Further, as in the third aspect of the present invention, even if the feed tube is composed of a plurality of feed tubes to constitute a bundle feed tube type coating machine, the paint in the feed tube is coated with a pigment block. Can be prevented.
【００１７】さらに、請求項４の発明のように、複数本
のフィードチューブを回転軸内に同軸に挿通する構成の
塗装機として構成したものであっても、フィードチュー
ブ内の塗料に顔料塊が発生するのを防止できる。Further, as in the invention of claim 4, even when the coating machine has a constitution in which a plurality of feed tubes are coaxially inserted into the rotary shaft, the paint in the feed tubes contains pigment lumps. It can be prevented from occurring.
【００１８】[0018]
【実施例】以下、本発明の実施例による直接帯電方式の
回転霧化型静電塗装装置を図１ないし図６に基づいて説
明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A direct charging type rotary atomization type electrostatic coating apparatus according to an embodiment of the present invention will be described below with reference to FIGS.
【００１９】まず、図１および図２に本発明による第１
の実施例を示す。First, FIG. 1 and FIG. 2 show a first embodiment of the present invention.
An example of is shown.
【００２０】図において、１は回転霧化型静電塗装装置
の塗装機本体を示し、該塗装機本体１は絶縁性樹脂材料
から基端側が閉塞され、先端側が開口する有底の段付筒
状に形成され、その先端側内周は後述するエアモータ６
が挿着されるモータ挿着部２となり、該モータ挿着部２
の基端側には後述するチューブホルダ１６が収容される
ホルダ収容部３が縮径されて形成されている。また、該
塗装機本体１の外周側には、後述する高電圧発生装置２
０が収容される収容室４が形成されている。さらに、該
塗装機本体１は絶縁性樹脂材料からなるカバー５で覆わ
れている。In the figure, reference numeral 1 denotes a coating machine main body of a rotary atomization type electrostatic coating apparatus. The coating machine main body 1 is a bottomed stepped cylinder whose base end is closed from an insulating resin material and whose front end is open. The inner periphery of the tip end side of the air motor 6 will be described later.
Becomes a motor insertion portion 2 into which the
A holder accommodating portion 3 for accommodating a tube holder 16 to be described later is formed on the base end side thereof with a reduced diameter. Further, a high voltage generator 2 to be described later is provided on the outer peripheral side of the coating machine main body 1.
A storage chamber 4 in which 0 is stored is formed. Further, the coating machine main body 1 is covered with a cover 5 made of an insulating resin material.
【００２１】６は塗装機本体１のモータ挿着部２内に設
けられたタービン型のエアモータを示し、該エアモータ
６は、後述するモータケース７，回転軸８およびエア軸
受９から大略構成されている。Reference numeral 6 denotes a turbine type air motor provided in the motor insertion portion 2 of the main body 1 of the coating machine. The air motor 6 is roughly composed of a motor case 7, a rotary shaft 8 and an air bearing 9 which will be described later. There is.
【００２２】７はエアモータ６の外殻をなす段付筒状の
モータケースを示し、該モータケース７には、軸心に沿
って先端側から順に、軸挿通穴７Ａ，タービン室７Ｂ，
ホルダ接続穴７Ｃが形成されている。Reference numeral 7 denotes a stepped tubular motor case that forms the outer shell of the air motor 6. The motor case 7 has a shaft insertion hole 7A, a turbine chamber 7B, and a shaft chamber 7B, which are arranged in this order from the front end side along the axis.
A holder connection hole 7C is formed.
【００２３】８はモータケース７の軸挿通穴７Ａ，ター
ビン室７Ｂ内に亘って配設された回転軸を示し、該回転
軸８は、先端側がモータケース７から突出した中空軸８
Ａと、該中空軸８Ａの基端側に位置してタービン室７Ｂ
内に収容されたエアタービン８Ｂとから構成され、該回
転軸８はエア軸受９，９を介して回転自在に支持されて
いる。Reference numeral 8 denotes a rotary shaft arranged so as to extend over the shaft insertion hole 7A of the motor case 7 and the turbine chamber 7B. The rotary shaft 8 has a hollow shaft 8 whose tip end side projects from the motor case 7.
A and the turbine chamber 7B located on the base end side of the hollow shaft 8A.
The rotary shaft 8 is rotatably supported via air bearings 9 and 9.
【００２４】そして、このように構成されたエアモータ
６は、エア通路１０を介してタービン室７Ｂに圧縮エア
が供給されることにより、エアタービン８Ｂを介して回
転軸８を高速回転させるものである。また、該エアモー
タ６は、高電圧発生装置２０に接続され、該高電圧発生
装置２０からの高電圧を前記回転軸８を介して回転霧化
頭１１に印加している。The air motor 6 thus constructed rotates the rotary shaft 8 at high speed through the air turbine 8B by supplying compressed air to the turbine chamber 7B through the air passage 10. . The air motor 6 is connected to a high voltage generator 20 and applies a high voltage from the high voltage generator 20 to the rotary atomizing head 11 via the rotary shaft 8.
【００２５】１１は回転軸８の中空軸８Ａ先端に固着さ
れた塗料噴霧手段としてのベル型の回転霧化頭を示し、
該回転霧化頭１１は、基端側が前記中空軸８Ａに螺着さ
れ、先端側が拡開する朝顔状に形成されている。また、
該回転霧化頭１１には、先端側を閉塞するように円板状
のハブ部材１２が固着されている。Reference numeral 11 denotes a bell type rotary atomizing head as paint spraying means fixed to the tip of the hollow shaft 8A of the rotary shaft 8.
The rotary atomizing head 11 is formed in a morning glory shape in which the base end side is screwed to the hollow shaft 8A and the tip end side is widened. Also,
A disk-shaped hub member 12 is fixed to the rotary atomizing head 11 so as to close the tip side.
【００２６】ここで、前記ハブ部材１２の外周側には、
塗料、シンナを回転霧化頭１１の先端側に導くための第
１のハブ孔１２Ａ，１２Ａが複数個形成され、中央側に
は、先端側にシンナを供給する第２のハブ孔１２Ｂ，１
２Ｂが複数個（それぞれ２個のみ図示）形成されてい
る。Here, on the outer peripheral side of the hub member 12,
A plurality of first hub holes 12A, 12A for guiding the paint and thinner to the tip side of the rotary atomizing head 11 are formed, and a second hub hole 12B, 1 for supplying thinner to the tip side is formed at the center side.
A plurality of 2B (only two of each are shown) are formed.
【００２７】そして、回転霧化頭１１は、前記回転軸８
と共に回転駆動されることにより、後述する各フィード
チューブ１８から供給される塗料を高電圧に帯電させつ
つ遠心力により液糸として噴霧し、被塗物との間の電気
力線（静電界）に沿って該被塗物に塗着させるものであ
る。The rotary atomizing head 11 has the rotary shaft 8
By being driven to rotate together with it, the coating material supplied from each feed tube 18 described later is sprayed as a liquid thread by centrifugal force while being charged to a high voltage, and becomes a line of electric force (electrostatic field) between it and the object to be coated. It is to be applied to the article to be coated along with it.
【００２８】１３は回転霧化頭１１の外周を囲むように
塗装機本体１の先端側に設けられたエアノズルを示し、
該エアノズル１３の先端側には、複数個のエア噴出孔１
３Ａ，１３Ａ（２個のみ図示）が穿設され、該各エア噴
出孔１３Ａは、シェイピングエア供給通路１４を介して
供給されるエアをシェイピングエアとして回転霧化頭１
１の先端外周側に噴出し、該回転霧化頭１１から噴霧さ
れた塗料の塗装パターンを円形状にパターン成形するも
のである。Reference numeral 13 denotes an air nozzle provided on the tip side of the coating machine main body 1 so as to surround the outer circumference of the rotary atomizing head 11.
A plurality of air ejection holes 1 are provided on the tip side of the air nozzle 13.
3A and 13A (only two of which are shown) are bored, and each of the air ejection holes 13A uses the air supplied through the shaping air supply passage 14 as shaping air to form the rotary atomizing head 1
The coating pattern of the coating material sprayed from the rotary atomizing head 11 to the outer peripheral side of the tip end of No. 1 is formed into a circular pattern.
【００２９】１５は塗装機本体１の軸中心を軸方向に伸
長するように配設された塗料供給手段としての塗料供給
部を示し、該塗料供給部１５は、後述するチューブホル
ダ１６，流通路１７およびフィードチューブ１８から大
略構成されている。Reference numeral 15 denotes a paint supply section as a paint supply means arranged so as to extend in the axial direction of the shaft center of the coating machine main body 1. The paint supply section 15 includes a tube holder 16 and a flow passage which will be described later. It is generally composed of 17 and a feed tube 18.
【００３０】１６は塗装機本体１のホルダ収容部３内に
収容されたチューブホルダで、該チューブホルダ１６
は、厚肉な段付円板状に形成され、その突出部１６Ａが
モータケース７のホルダ接続穴７Ｃに挿嵌され、軸方向
には塗料を流通する流通路１７が形成されている。Reference numeral 16 denotes a tube holder accommodated in the holder accommodating portion 3 of the main body 1 of the coating machine.
Is formed in the shape of a thick stepped disc, the protruding portion 16A of which is inserted into the holder connection hole 7C of the motor case 7, and the flow passage 17 for circulating the paint is formed in the axial direction.
【００３１】１８は回転軸８の中空軸８Ａ内に配設され
た本実施例によるフィードチューブを示し、該フィード
チューブ１８は、図２に示すように、絶縁樹脂材料（例
えば、ポリエチレンテレフタレート，ポリアセタール，
ナイロン６６等）によって基端側が流通路１７内に挿嵌
され、先端側が中空軸８Ａから回転霧化頭１１内に突出
している。Reference numeral 18 denotes a feed tube according to this embodiment, which is disposed inside the hollow shaft 8A of the rotary shaft 8. The feed tube 18 is an insulating resin material (for example, polyethylene terephthalate, polyacetal) as shown in FIG. ，
The base end side is inserted into the flow passage 17 by nylon 66 or the like), and the tip end side projects from the hollow shaft 8A into the rotary atomizing head 11.
【００３２】そして、塗料供給部１５は、塗装機本体１
に形成された塗料通路１９，供給配管を介して塗料供給
源（いずれも図示せず）に接続され、該塗料通路１９を
介して塗料供給源からＡ色塗料が供給されると、流通路
１７，フィードチューブ１８を介して回転霧化頭１１に
向けてＡ色塗料を吐出するものである。The paint supply section 15 is the main body 1 of the coating machine.
When a paint A is supplied from the paint supply source via the paint passage 19 and the paint supply source (neither is shown) through the paint passage 19, the flow passage 17 is formed. , A color paint is discharged toward the rotary atomizing head 11 via the feed tube 18.
【００３３】２０は塗装機本体１の収容室４内に収容さ
れた高電圧発生装置で、該高電圧発生装置２０は、多倍
圧回路等からなる高電圧発生回路と安全保障のための高
圧用抵抗とから大略構成されている。また、該高電圧発
生装置２０の入力側は、リード線を介して外部電源（い
ずれも図示せず）と接続され、出力側は電極板２０Ａを
介してエアモータ６のモータケース７に接続されてい
る。そして、該高電圧発生装置２０は、外部電源から供
給された電圧を所定の高電圧に変換し、この高電圧をモ
ータケース７から回転軸８を介して回転霧化頭１１に供
給し、該回転霧化頭１１を介して直接的に塗料を高電圧
に帯電させるものである。Reference numeral 20 denotes a high-voltage generator housed in the housing chamber 4 of the main body 1 of the coating machine. The high-voltage generator 20 is a high-voltage generator circuit including a multiple voltage circuit and a high-voltage generator for safety. It is mainly composed of a resistance for use. The input side of the high-voltage generator 20 is connected to an external power source (neither is shown) via a lead wire, and the output side is connected to the motor case 7 of the air motor 6 via an electrode plate 20A. There is. Then, the high voltage generator 20 converts the voltage supplied from the external power source into a predetermined high voltage, supplies the high voltage from the motor case 7 to the rotary atomizing head 11 via the rotary shaft 8, and The paint is directly charged to a high voltage through the rotary atomizing head 11.
【００３４】本実施例による回転霧化型静電塗装装置は
上述の如き構成を有するもので、次に、その作動につい
て説明する。The rotary atomizing type electrostatic coating apparatus according to this embodiment has the above-mentioned construction, and its operation will be described below.
【００３５】まず、塗料供給源のＡ色塗料が供給配管を
介して一定流量ずつ供給され、塗料通路１９，流通路１
７を介してフィードチューブ１８から回転霧化頭１１に
向けて吐出される。そして、フィードチューブ１８から
吐出されたＡ色塗料は、ハブ部材１２の各ハブ孔１２
Ａ，１２Ｂを介して回転霧化頭１１から高電圧に帯電し
つつ液糸として噴霧され、静電霧化されて帯電粒子とな
る。この結果、帯電粒子となったＡ色塗料は回転霧化頭
１１と被塗物との間の電気力線に沿って飛行し、該被塗
物に塗着する。First, the A-color paint from the paint supply source is supplied at a constant flow rate through the supply pipe, and the paint passage 19 and the flow passage 1 are provided.
It is discharged from the feed tube 18 toward the rotary atomizing head 11 via 7. Then, the A-color paint discharged from the feed tube 18 is applied to each hub hole 12 of the hub member 12.
While being charged to a high voltage from the rotary atomizing head 11 via A and 12B, they are sprayed as liquid threads and electrostatically atomized into charged particles. As a result, the A-color coating material that has become charged particles flies along the lines of electric force between the rotary atomizing head 11 and the object to be coated, and is applied to the object to be coated.
【００３６】また、高電圧発生装置２０の電極板２０Ａ
はエアモータ６のモータケース７に接続されているか
ら、該高電圧発生装置２０から出力される高電圧は、エ
アモータ６と回転霧化頭１１に印加され、回転霧化頭１
１に吐出された塗料粒子を高電圧に帯電する。Further, the electrode plate 20A of the high voltage generator 20
Is connected to the motor case 7 of the air motor 6, the high voltage output from the high voltage generator 20 is applied to the air motor 6 and the rotary atomizing head 11 to rotate the atomizing head 1.
The paint particles discharged to No. 1 are charged to a high voltage.
【００３７】かくして、本実施例の静電塗装装置におい
ては、高電圧発生装置２０から出力される高電圧は、電
極板２０Ａ，エアモータ６のモータケース７および回転
霧化頭１１を介して印加され、回転霧化頭１１に吐出さ
れる塗料を高電圧に帯電させるものの、本実施例による
フィードチューブ１８は絶縁樹脂で形成されているか
ら、高電圧が印加するのを防止することができる。Thus, in the electrostatic coating apparatus of this embodiment, the high voltage output from the high voltage generator 20 is applied via the electrode plate 20A, the motor case 7 of the air motor 6 and the rotary atomizing head 11. Although the paint discharged to the rotary atomizing head 11 is charged to a high voltage, the feed tube 18 according to the present embodiment is formed of an insulating resin, so that the high voltage can be prevented from being applied.
【００３８】そして、フィードチューブ１８内に従来技
術において発生していた高電圧部位とアース部位との電
位差が発生するのを防止でき、フィードチューブ１８内
の塗料が顔料を含む塗料であっても、フィードチューブ
１８内の該塗料中に顔料塊が発生するのを確実に防止す
ることができる。Further, it is possible to prevent the potential difference between the high voltage portion and the ground portion, which is generated in the prior art, in the feed tube 18, and to prevent the paint in the feed tube 18 from containing a pigment. It is possible to reliably prevent the generation of pigment lumps in the paint in the feed tube 18.
【００３９】この結果、従来の静電塗装装置において、
塗料に顔料を含む溶剤系塗料を使用したときに、フィー
ドチューブ１８内に発生していた顔料塊の発生を確実に
抑え、塗装時に被塗物が顔料塊によって荒れるのを防止
し、塗装面の仕上がり品質を向上させることができる。As a result, in the conventional electrostatic coating apparatus,
When a solvent-based paint containing a pigment is used as the paint, the occurrence of pigment lumps that have been generated in the feed tube 18 is reliably suppressed, and the object to be coated is prevented from being roughened by the pigment lumps during coating, and The finished quality can be improved.
【００４０】次に、図３および図４に本発明の第２の実
施例を示すに、本実施例の特徴は、第１の実施例による
フィードチューブ１８をフィードチューブ１８Ａ〜１８
Ｇの合計７本から形成することによって、塗装装置全体
を束状フィードチューブ式静電塗装装置として構成した
ことにある。なお、１７Ａ〜１７Ｇは前記フィードチュ
ーブ１８Ａ〜１８Ｇに接続される流通路を示し、流通路
１７Ｆ，フィードチューブ１８Ｆは洗浄用専用通路に用
いられている。Next, FIGS. 3 and 4 show a second embodiment of the present invention. The feature of this embodiment is that the feed tube 18 according to the first embodiment is replaced by feed tubes 18A to 18A.
By forming a total of seven Gs, the entire coating device is configured as a bundle feed tube type electrostatic coating device. Reference numerals 17A to 17G denote flow passages connected to the feed tubes 18A to 18G, and the flow passages 17F and the feed tube 18F are used as dedicated cleaning passages.
【００４１】このように構成される第２の実施例におい
ても、前述した第１の実施例と同様に、フィードチュー
ブ１８Ａ〜１８Ｇ内の塗料に顔料を含む塗料を用いたと
きでも、顔料塊が発生するのを抑えて塗装面の仕上がり
品質を向上できる。Also in the second embodiment constructed as described above, similarly to the first embodiment described above, even when the paint containing the pigment is used as the paint in the feed tubes 18A to 18G, the pigment lumps are not formed. It is possible to suppress the generation and improve the finish quality of the painted surface.
【００４２】さらに、第２の実施例による束状フィード
チューブ式静電塗装装置においては、塗装頻度の高い専
用色の塗料を、それぞれ塗料供給源から塗料配管，塗料
弁，フィードチューブ１８Ａ〜１８Ｇ等を介して回転霧
化頭に直接供給するようにしたから、色替時間の短縮、
洗浄液の使用量削減を可能とし、ランニングコストを低
減できるという効果を奏する。Further, in the bundle feed tube type electrostatic coating apparatus according to the second embodiment, the paints of the dedicated color having a high coating frequency are supplied from the paint supply source to the paint pipes, paint valves, feed tubes 18A to 18G, etc. Since it is directly supplied to the rotary atomizing head via the,
As a result, it is possible to reduce the amount of cleaning liquid used and reduce the running cost.
【００４３】次に、図５は本発明の第３の実施例を示す
に、本実施例の特徴は、第１の実施例によるフィードチ
ューブ２１を回転軸８内に同軸に設けられた外筒２２と
内筒２３からなる２重構造とした先端洗浄弁を備えた塗
装装置としたことにある。なお、前述した第１の実施例
と同一の構成要素に同一の符号を付し、その説明を省略
するものとする。Next, FIG. 5 shows a third embodiment of the present invention. The feature of this embodiment is that the feed tube 21 according to the first embodiment is provided in an outer cylinder coaxially with the rotary shaft 8. The coating apparatus is provided with a double-ended tip cleaning valve including the inner cylinder 22 and the inner cylinder 23. The same components as those in the first embodiment are denoted by the same reference numerals, and description thereof will be omitted.
【００４４】ここで、フィードチューブ２１は外筒２２
と内筒２３を回転軸８内に同軸に配設することによって
構成され、該外筒２２と内筒２３はそれぞれ絶縁樹脂材
料によって形成されている。また、各基端側は塗装機本
体１に取付けられ、外筒２２の先端側は縮径して溶剤吐
出口２２Ａとなり、内筒２３の先端側は縮径しつつ外筒
２２の外部から突出する塗料吐出口２３Ａとなる。さら
に、内筒２３の軸方向途中には、後述の塗料弁３０の弁
体３０Ｃが離着座する弁座２３Ｂが設けられ、該弁座２
３Ｂは金属材料によって形成されている。Here, the feed tube 21 is an outer cylinder 22.
The inner cylinder 23 and the inner cylinder 23 are coaxially arranged in the rotary shaft 8, and the outer cylinder 22 and the inner cylinder 23 are each made of an insulating resin material. Further, each base end side is attached to the coating machine main body 1, the front end side of the outer cylinder 22 is reduced in diameter to become a solvent discharge port 22A, and the front end side of the inner cylinder 23 is reduced in diameter and protrudes from the outside of the outer cylinder 22. It becomes the paint discharge port 23A. Further, a valve seat 23B on which a valve body 30C of a paint valve 30, which will be described later, is seated is provided midway in the axial direction of the inner cylinder 23.
3B is formed of a metal material.
【００４５】さらに、内筒２３内は塗料通路２４とな
り、該塗料通路２４の基端側には色替弁装置２５と排液
弁２６とが接続されている。また、外筒２２と内筒２３
との間は溶剤通路２７となり、該溶剤通路２７の基端側
には洗浄弁装置２８と先端洗浄弁２９が接続されてい
る。Further, a paint passage 24 is formed in the inner cylinder 23, and a color changing valve device 25 and a drain valve 26 are connected to the base end side of the paint passage 24. In addition, the outer cylinder 22 and the inner cylinder 23
Is a solvent passage 27, and a washing valve device 28 and a tip washing valve 29 are connected to the base end side of the solvent passage 27.
【００４６】３０は常閉の塗料弁を示し、該塗料弁３０
は塗装機本体１に設けられたアクチュエータ３０Ａと、
基端側がアクチュエータ３０Ａに連結され、先端側が内
筒２３に連通された弁軸３０Ｂと、該弁軸３０Ｂの先端
側に設けられ、内筒２３の弁座２３Ｂに離着座する弁体
３０Ｃとから構成されている。Reference numeral 30 denotes a normally closed paint valve, and the paint valve 30
Is an actuator 30A provided in the main body 1 of the coating machine,
From a valve shaft 30B whose base end side is connected to the actuator 30A and whose front end side is communicated with the inner cylinder 23, and a valve body 30C which is provided on the front end side of the valve shaft 30B and is seated on and off the valve seat 23B of the inner cylinder 23. It is configured.
【００４７】このように構成される第３の実施例におけ
る先端洗浄弁を備えた静電塗装装置においても、前述し
た第１の実施例と同様に、内筒２３内の塗料に顔料を含
む塗料を用いたときでも、顔料塊が発生するのを抑えて
塗装面の仕上がり品質を向上できる。Also in the electrostatic coating apparatus having the tip cleaning valve in the third embodiment configured as described above, the paint containing the pigment in the paint in the inner cylinder 23 is the same as in the first embodiment described above. Even when using, it is possible to suppress the generation of pigment lumps and improve the finish quality of the coated surface.
【００４８】さらに、第３の実施例における先端洗浄弁
を備えた静電塗装装置においては、洗浄工程における塗
料通路２４の主洗浄に加えて、内筒２３の先端外周側を
スポット的に洗浄する補助洗浄を行うことにより、次色
塗装時に前の塗料が混入するのを防止することができる
ものです。Further, in the electrostatic coating apparatus having the tip cleaning valve in the third embodiment, in addition to the main cleaning of the paint passage 24 in the cleaning step, the tip outer peripheral side of the inner cylinder 23 is spot-cleaned. By performing auxiliary cleaning, it is possible to prevent the previous paint from mixing in when the next color is applied.
【００４９】即ち、先端洗浄は、まず先端洗浄弁２９を
閉弁位置から開弁位置に切換えて、洗浄弁装置２８から
シンナを溶剤通路２７を介して供給し、溶剤吐出口２２
Ａから内筒２３の塗料吐出口２３Ａ外周面に付着した付
着塗料Ｆを洗浄するものである。そして、内筒２３の先
端側外周の付着塗料Ｆの洗浄が終了した後に、洗浄弁装
置２８からのエアによって溶剤通路２７内に残存したシ
ンナを排出し、次色塗装の準備を行う。That is, in the tip cleaning, first, the tip cleaning valve 29 is switched from the closed position to the valve open position, the thinner is supplied from the cleaning valve device 28 through the solvent passage 27, and the solvent discharge port 22 is supplied.
The coating material F attached to the outer peripheral surface of the coating material discharge port 23A of the inner cylinder 23 from A is cleaned. Then, after the cleaning of the adhered paint F on the outer periphery of the tip end side of the inner cylinder 23 is completed, the thinner remaining in the solvent passage 27 is discharged by the air from the cleaning valve device 28 to prepare for the next color coating.
【００５０】このように、第３の実施例においては、フ
ィードチューブ２１の先端を確実に洗浄することによ
り、塗料の色混じり等を防止することができ、信頼性を
高めることができる。As described above, in the third embodiment, by reliably cleaning the tip of the feed tube 21, it is possible to prevent the color mixture of the paint, etc., and improve the reliability.
【００５１】なお、前記第３の実施例のように、フィー
ドチューブ２１を外筒２２と内筒２３とからなる２重チ
ューブとして構成したが、本発明はこれに限らず回転軸
８と同軸に配設した３，４，…重のフィードチューブに
用いてもよい。Although the feed tube 21 is constructed as a double tube consisting of the outer cylinder 22 and the inner cylinder 23 as in the third embodiment, the present invention is not limited to this, and is coaxial with the rotary shaft 8. It may be used for 3, 4, ... Heavy feed tubes arranged.
【００５２】さらに、図６は本発明の第４の実施例を示
し、本実施例の特徴は、フィードチューブのチューブ内
周面を絶縁材料によってコーティングしたものである。Furthermore, FIG. 6 shows a fourth embodiment of the present invention, and the feature of this embodiment is that the inner peripheral surface of the feed tube is coated with an insulating material.
【００５３】即ち、３１は本実施例によるフィードチュ
ーブを示し、該フィードチューブ３１は、金属材料（ス
テンレス・スチール、スチール合金および銅合金（真
鍮）等）によって形成された筒部３２と、該筒部３２の
チューブ内壁面を絶縁樹脂材料（例えば、ポリエチレン
テレフタレート，ポリアセタール，ナイロン６６等）に
よってコーティングされた薄膜３３とからなる。このよ
うに、フィードチューブ２１を形成することにより、前
記第１の実施例と同様に、フィードチューブ３１内の塗
料に高電圧が印加されるのを防止し、顔料塊の発生を抑
え、塗装面の仕上げ品質を向上できる。That is, 31 indicates a feed tube according to the present embodiment. The feed tube 31 includes a tubular portion 32 formed of a metal material (stainless steel, steel alloy, copper alloy (brass), etc.) and the tubular portion 32. The inner wall surface of the tube of the portion 32 is composed of a thin film 33 coated with an insulating resin material (for example, polyethylene terephthalate, polyacetal, nylon 66, etc.). By forming the feed tube 21 in this manner, it is possible to prevent a high voltage from being applied to the paint in the feed tube 31 in the same manner as in the first embodiment, to suppress the generation of pigment lumps, and Can improve the finishing quality.
【００５４】なお、前記第４の実施例では、絶縁樹脂材
料による薄膜３３を筒部３２の内壁面にのみ形成するよ
うにしたが、本発明はこれに限らず、筒部３２の全面を
薄膜３３でコーティングするようにしてもよい。In the fourth embodiment, the thin film 33 made of the insulating resin material is formed only on the inner wall surface of the tubular portion 32, but the present invention is not limited to this, and the entire surface of the tubular portion 32 is a thin film. It may be coated with 33.
【００５５】また、前記各実施例では、回転霧化頭とし
てベル型回転霧化頭を例に挙げて説明したが、本発明は
これに限らず、ディスク型回転霧化頭を用いた静電塗装
装置に適用してもよい。Further, in each of the above-mentioned embodiments, the bell type rotary atomizing head has been described as an example of the rotary atomizing head, but the present invention is not limited to this, and an electrostatic using a disk type rotary atomizing head is used. It may be applied to coating equipment.
【００５６】[0056]
【発明の効果】以上詳述した通り、請求項１の発明によ
れば、回転霧化頭に塗料を供給するフィードチューブを
絶縁樹脂材料によって形成したから、高電圧発生装置に
よってエアモータおよび回転霧化頭に高電圧を印加した
ときでも、フィードチューブ内に高電圧が加わるのを防
止し、該フィードチューブ内の塗料が顔料を含む溶剤系
塗料の場合でも、塗料中に顔料塊が発生するのを抑え、
塗装面が荒れるのを防止して塗装面の品質を向上するこ
とができる。As described in detail above, according to the first aspect of the invention, the feed tube for supplying the paint to the rotary atomizing head is made of the insulating resin material. Therefore, the air motor and the rotary atomizer are driven by the high voltage generator. Even when a high voltage is applied to the head, the high voltage is prevented from being applied to the feed tube, and even if the paint in the feed tube is a solvent-based paint containing a pigment, a pigment lump is not generated in the paint. Hold down,
It is possible to prevent the painted surface from becoming rough and improve the quality of the painted surface.
【００５７】また、請求項２の発明のように、フィード
チューブのチューブ内壁面を絶縁材料でコーティングす
ることにより、該フィードチューブ内に高電圧が加わる
のを防止し、該フィードチューブ内の塗料が顔料を含む
溶剤系塗料の場合でも、塗料中に顔料塊が発生するのを
抑え、塗装面が荒れるのを防止して塗装面の品質を向上
することができる。Further, as in the invention of claim 2, by coating the inner wall surface of the feed tube with an insulating material, it is possible to prevent a high voltage from being applied to the inside of the feed tube, and to prevent the paint in the feed tube from being applied. Even in the case of a solvent-based paint containing a pigment, it is possible to suppress the generation of pigment lumps in the paint, prevent the painted surface from becoming rough, and improve the quality of the painted surface.
【００５８】また、請求項３の発明のように、フィード
チューブを複数本で形成して束状フィードチューブ式静
電塗装装置として構成した場合でも、塗料中に顔料塊が
発生するのを抑え、塗装面が荒れるのを防止して塗装面
の品質を向上できると共に、塗料中に顔料塊が発生する
のを抑え、塗装面が荒れるのを防止して塗装面の品質を
向上できるという効果を奏する。Further, even when a plurality of feed tubes are formed as a bundle feed tube type electrostatic coating device as in the third aspect of the invention, generation of pigment lumps in the paint is suppressed, It is possible to prevent the coated surface from becoming rough and improve the quality of the coated surface, while suppressing the occurrence of pigment lumps in the paint, preventing the coated surface from becoming rough and improving the quality of the coated surface. .
【００５９】さらに、請求項４の発明のように、回転軸
内に複数本のフィードチューブを同軸に挿通する構成と
した場合でも、塗料中に顔料塊が発生するのを抑え、塗
装面が荒れるのを防止して塗装面の品質を向上できると
共に、塗料中に顔料塊が発生するのを抑え、塗装面が荒
れるのを防止して塗装面の品質を向上できる。また、先
端洗浄等を確実に行うことができ、塗料の色混じりを抑
え、塗装装置の信頼性を向上することができる。Further, even when a plurality of feed tubes are coaxially inserted into the rotary shaft as in the invention of claim 4, generation of pigment lumps in the paint is suppressed and the coated surface is roughened. Can be prevented and the quality of the coated surface can be improved, the generation of pigment lumps in the paint can be suppressed, and the coated surface can be prevented from being roughened to improve the quality of the coated surface. Further, it is possible to surely perform the tip cleaning and the like, suppress the color mixture of the paint, and improve the reliability of the coating device.
【図面の簡単な説明】[Brief description of drawings]
【図１】本発明の第１の実施例による回転霧化型静電塗
装装置を示す縦断面図である。FIG. 1 is a vertical sectional view showing a rotary atomizing type electrostatic coating apparatus according to a first embodiment of the present invention.
【図２】図１中のフィードチューブを拡大して示す縦断
面図である。FIG. 2 is an enlarged vertical sectional view showing a feed tube in FIG.
【図３】本発明の第２の実施例による回転霧化型静電塗
装装置を示す縦断面図である。FIG. 3 is a vertical sectional view showing a rotary atomizing type electrostatic coating device according to a second embodiment of the present invention.
【図４】各フィードチューブの配設状態を図３中の矢示
IV−IV方向から拡大して示す横断面図である。FIG. 4 is a view showing an arrangement state of each feed tube in FIG.
FIG. 4 is a lateral cross-sectional view enlarged from the IV-IV direction.
【図５】本発明の第３の実施例による回転霧化型静電塗
装装置を示す縦断面図である。FIG. 5 is a vertical sectional view showing a rotary atomizing type electrostatic coating device according to a third embodiment of the present invention.
【図６】本発明の第４の実施例によるフィードチューブ
を拡大して示す図２と同様の縦断面図である。FIG. 6 is a vertical sectional view similar to FIG. 2, showing an enlarged feed tube according to a fourth embodiment of the present invention.
【図７】従来技術によるフィードチューブ内の塗料中に
顔料塊が発生した状態を示す拡大断面図である。FIG. 7 is an enlarged cross-sectional view showing a state in which pigment lumps are generated in the paint in the feed tube according to the related art.
【図８】被塗物に塗着された塗膜に顔料塊が飛着した状
態を示す拡大縦断面図である。FIG. 8 is an enlarged vertical cross-sectional view showing a state in which pigment lumps are scattered on a coating film applied to an object to be coated.
１ 塗装機本体 ６ エアモータ ８ 回転軸 １１ 回転霧化頭 １８，１８Ａ〜１８Ｇ，２１，３１ フィードチューブ ２０ 高電圧発生装置 ２２ 外筒 ２３ 内筒 ３２ 筒部 ３３ 薄膜 1 Coating Machine Main Body 6 Air Motor 8 Rotating Shaft 11 Rotating Atomizing Head 18, 18A-18G, 21, 31 Feed Tube 20 High Voltage Generator 22 Outer Cylinder 23 Inner Cylinder 32 Cylinder 33 Thin Film
Claims (4)
けられたエアモータと、該エアモータの軸方向に挿通さ
れ、該エアモータによって回転せしめられる回転軸と、
前記塗装機本体外に位置して該回転軸の先端側に設けら
れた回転霧化頭と、前記回転軸内に挿通され、先端側が
該回転霧化頭内に延在するフィードチューブと、前記回
転霧化頭に供給される塗料を高電圧に帯電させる高電圧
発生装置とからなる回転霧化型静電塗装装置において、
前記フィードチューブを絶縁材料によって形成したこと
を特徴とする回転霧化型静電塗装装置。1. A tubular coating machine main body, an air motor provided in the coating machine main body, and a rotary shaft which is inserted in the axial direction of the air motor and rotated by the air motor.
A rotary atomizing head that is located outside the main body of the coating machine and that is provided on the tip end side of the rotary shaft; a feed tube that is inserted into the rotary shaft and extends at the tip end side into the rotary atomizing head; In a rotary atomization type electrostatic coating device consisting of a high voltage generator that charges the paint supplied to the rotary atomizing head to a high voltage,
A rotary atomization type electrostatic coating device, wherein the feed tube is formed of an insulating material.
けられたエアモータと、該エアモータの軸方向に挿通さ
れ、該エアモータによって回転せしめられる回転軸と、
前記塗装機本体外に位置して該回転軸の先端側に設けら
れた回転霧化頭と、前記回転軸内に挿通され、先端側が
該回転霧化頭内に延在するフィードチューブと、前記回
転霧化頭に供給される塗料を高電圧に帯電させる高電圧
発生装置とからなる回転霧化型静電塗装装置において、
前記フィードチューブの少なくともチューブ内壁面を絶
縁材料によってコーティングしたことを特徴とする回転
霧化型静電塗装装置。2. A tubular coating machine main body, an air motor provided in the coating machine main body, and a rotary shaft which is inserted in the axial direction of the air motor and rotated by the air motor.
A rotary atomizing head that is located outside the main body of the coating machine and that is provided on the tip end side of the rotary shaft; a feed tube that is inserted into the rotary shaft and extends at the tip end side into the rotary atomizing head; In a rotary atomization type electrostatic coating device consisting of a high voltage generator that charges the paint supplied to the rotary atomizing head to a high voltage,
At least the inner wall surface of the feed tube is coated with an insulating material.
ブを挿通する構成としてなる請求項１または２記載の回
転霧化型静電塗装装置。3. The rotary atomization type electrostatic coating device according to claim 1, wherein a plurality of feed tubes are inserted into the rotary shaft.
ブを同軸に挿通する構成としてなる請求項１または２記
載の回転霧化頭型静電塗装装置。4. The rotary atomizing head type electrostatic coating device according to claim 1, wherein a plurality of feed tubes are coaxially inserted in the rotary shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6174831A JPH0810659A (en) | 1994-07-04 | 1994-07-04 | Rotational spraying type electrostatic coating apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6174831A JPH0810659A (en) | 1994-07-04 | 1994-07-04 | Rotational spraying type electrostatic coating apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0810659A true JPH0810659A (en) | 1996-01-16 |
Family
ID=15985425
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6174831A Pending JPH0810659A (en) | 1994-07-04 | 1994-07-04 | Rotational spraying type electrostatic coating apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0810659A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005046842A (en) * | 2003-07-29 | 2005-02-24 | Illinois Tool Works Inc <Itw> | Method and apparatus for dispensing specific quantity of electrically charged particle of coating material |
| CN105750109A (en) * | 2016-04-27 | 2016-07-13 | 李耀钧 | Rapid die inner wall face processing device and method |
| US10688526B2 (en) | 2015-08-28 | 2020-06-23 | Toyota Jidosha Kabushiki Kaisha | Electrostatic atomizing coating apparatus and coating method |
-
1994
- 1994-07-04 JP JP6174831A patent/JPH0810659A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005046842A (en) * | 2003-07-29 | 2005-02-24 | Illinois Tool Works Inc <Itw> | Method and apparatus for dispensing specific quantity of electrically charged particle of coating material |
| US10688526B2 (en) | 2015-08-28 | 2020-06-23 | Toyota Jidosha Kabushiki Kaisha | Electrostatic atomizing coating apparatus and coating method |
| CN105750109A (en) * | 2016-04-27 | 2016-07-13 | 李耀钧 | Rapid die inner wall face processing device and method |
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