JPH0456674B2 - - Google Patents
Info
- Publication number
- JPH0456674B2 JPH0456674B2 JP59196785A JP19678584A JPH0456674B2 JP H0456674 B2 JPH0456674 B2 JP H0456674B2 JP 59196785 A JP59196785 A JP 59196785A JP 19678584 A JP19678584 A JP 19678584A JP H0456674 B2 JPH0456674 B2 JP H0456674B2
- Authority
- JP
- Japan
- Prior art keywords
- air
- cup
- paint
- shaped head
- atomization
- 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
- 238000000889 atomisation Methods 0.000 claims description 59
- 239000003973 paint Substances 0.000 claims description 40
- 238000007493 shaping process Methods 0.000 claims description 15
- 238000009503 electrostatic coating Methods 0.000 claims description 8
- 238000010422 painting Methods 0.000 claims description 6
- 238000007664 blowing Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
- B05B5/025—Discharge apparatus, e.g. electrostatic spray guns
- B05B5/04—Discharge apparatus, e.g. electrostatic spray guns characterised by having rotary outlet or deflecting elements, i.e. spraying being also effected by centrifugal forces
- B05B5/0403—Discharge apparatus, e.g. electrostatic spray guns characterised by having rotary outlet or deflecting elements, i.e. spraying being also effected by centrifugal forces characterised by the rotating member
- B05B5/0407—Discharge apparatus, e.g. electrostatic spray guns characterised by having rotary outlet or deflecting elements, i.e. spraying being also 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
- B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
- B05B5/025—Discharge apparatus, e.g. electrostatic spray guns
- B05B5/04—Discharge apparatus, e.g. electrostatic spray guns characterised by having rotary outlet or deflecting elements, i.e. spraying being also effected by centrifugal forces
- B05B5/0426—Means for supplying shaping gas
Landscapes
- Application Of Or Painting With Fluid Materials (AREA)
- Electrostatic Spraying Apparatus (AREA)
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は被塗物と塗料との間に電圧を印加して
電送を行う静電塗装装置に関し、さらに詳しく
は、回転霧化用とエア霧化用とを兼用し得るよう
にした静電塗装装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an electrostatic coating device that applies a voltage between an object to be coated and a coating material to perform electrical transmission. This invention relates to an electrostatic coating device that can be used for both atomization and atomization purposes.
（従来技術）
静電塗装装置にあつては、回転駆動されるカツ
プ状頭を備えて、例えばその回転中央部に供給さ
れた塗料を遠心力によつてその先端より放出し、
この放出までの間に、塗料を被塗物に対して電位
差を有するように帯電させるようになつている。
このようなカツプ状頭を備えたものは、大別して
回転霧化用とエア霧化用との２種類あり、塗料の
種類に応じてその使用を使い分けていた。(Prior art) An electrostatic coating device is equipped with a cup-shaped head that is driven to rotate, and for example, paint supplied to the center of the rotation is discharged from the tip by centrifugal force.
Until this discharge, the paint is charged so as to have a potential difference with respect to the object to be coated.
There are two types of devices equipped with such cup-shaped heads: those for rotary atomization and those for air atomization, and their use was determined depending on the type of paint.
すなわち、回転霧化用のものにあつては、カツ
プ状頭が例えば毎分8000〜12000回転というよう
に高速回転されて、遠心力の作用によつて塗料を
40〜70μ程度にまで細く微粒化（霧化用）する一
方、回転霧化用の周囲からシエーピング用エアを
噴出して、この放出された塗料の放出パターンを
整形するようにしている。また、エア霧化用のも
のにあつては、カツプ状頭が例えば毎分3000〜
4000回転というように低速回転されて、遠心力の
作用によつて塗料を300〜400μ程度に細くした
後、カツプ状頭の周囲より噴出される霧化用用エ
アによつて、カツプ状頭より放出された塗料を40
〜70μにまで微粒化（霧化用）するようにしてい
る。そして、塗料として例えばソリツド系のもの
を用いる場合は、回転霧化による塗装を行い、ま
た塗料としてメタリツク系のものを用いる場合
は、エア霧化により塗装を行うようにしていた。
このように、塗料の種類に応じて回転霧化とエア
霧化とを使い分けるのは、例えばメタリツク系の
塗料を回転霧化させた場合は、塗装面で塗料中の
メタルに凝集作用が生じて塗装面が全体的に黒ず
んでしまうため、エア霧化とせざるを得ないため
である。 In other words, in the case of rotary atomizers, the cup-shaped head is rotated at a high speed of, for example, 8,000 to 12,000 revolutions per minute, and the paint is sprayed by the action of centrifugal force.
While atomizing the paint to a fine size of about 40 to 70 microns (for atomization), shaping air is blown out from around the rotary atomizer to shape the release pattern of the ejected paint. In addition, for air atomization, the cup-shaped head has a speed of, for example, 3000 to 3000 per minute.
The paint is rotated at a low speed of 4,000 rpm to thin the paint to about 300 to 400 microns by the action of centrifugal force, and then the paint is thinned from the cup-shaped head by atomizing air jetted from around the cup-shaped head. 40 paint released
The particles are atomized to ~70μ (for atomization). For example, when a solid paint is used, the coating is performed by rotary atomization, and when a metallic paint is used, the painting is performed by air atomization.
In this way, the reason why rotary atomization and air atomization are used depending on the type of paint is because, for example, when a metallic paint is rotary atomized, the metals in the paint coagulate on the painted surface. This is because the entire painted surface becomes dark, so air atomization has to be used.
このように、塗料の種類に応じてエア霧化用と
回転霧化用とを使い分けることは、エア霧化用と
回転霧化用との塗装装置が別途必要になつて設置
コストが大きくなるのは勿論のこと、塗料の種類
変更のたびにエア霧化用と回転霧化用との配置切
換えを行わねばならず、いわゆる段取り替えの作
業が極めて面倒になつていた。特に、最近は１つ
のラインで種類の異なる塗料で塗装される被塗物
が混在して流れることが多く、またこの混在して
流れる被塗物が例えば自動車用ボデーのように極
めて大型の場合は、複数の回転霧化用装置あるい
は複数のエア霧化用装置を同時に用いる必要があ
るので、上述したような問題が顕著になる。 In this way, using air atomization and rotary atomization depending on the type of paint requires separate painting equipment for air atomization and rotary atomization, which increases installation costs. Of course, each time the type of paint is changed, the arrangement must be changed between air atomization and rotary atomization, making the so-called setup change extremely troublesome. In particular, recently, objects to be coated with different types of paint often flow together on one line, and when the objects to be painted mixed and flowing are extremely large, such as automobile bodies, Since it is necessary to use a plurality of rotary atomization devices or a plurality of air atomization devices at the same time, the above-mentioned problems become noticeable.
（発明の目的）
本発明は以上のような事情を勘案してなされた
もので、カツプ状頭を回転霧化用とエア霧化用と
で兼用させることのできるようにした、換言すれ
ば回転霧化用とエア霧化用とを自由に切換えるこ
とのできるようにした静電塗装装置を提供するこ
とを目的とする。(Object of the invention) The present invention has been made in consideration of the above circumstances, and has a cup-shaped head that can be used for both rotational atomization and air atomization. An object of the present invention is to provide an electrostatic coating device that can freely switch between atomization and air atomization.
（発明の構成）
前述の目的を達成するため、本発明にあつて
は、基本的には、回転霧化用とエア霧化用とに応
じてカツプ状頭の回転を高速回転と低速回転とに
切換えし得るようにする一方、エア噴出すなわち
カツプ状頭が高速回転される高速霧化に必要なシ
エーピング噴出と、カツプ状頭が低速回転される
エア霧化に必要な霧化用エア噴出とを、この高速
回転あるいは低速回転に合せて行うようにしてあ
る。(Structure of the Invention) In order to achieve the above-mentioned object, the present invention basically rotates the cup-shaped head at high speed and low speed depending on whether it is for rotary atomization or air atomization. On the other hand, the air jet, that is, the shaping jet necessary for high-speed atomization in which the cup-shaped head is rotated at high speed, and the atomizing air jet necessary for air atomization in which the cup-shaped head is rotated at low speed. is performed in accordance with this high-speed rotation or low-speed rotation.
具体的には、被塗物と塗料との間に電圧を印加
しつつ塗装を行うものにおいて、
回転モータにより回転駆動されるカツプ状頭を
備え、該カツプ状頭に供給された塗料を遠出力に
より該カツプ状頭の先端部より放出する塗料放出
器と、
前記回転モータの回転を、回転霧化用の高速回
転とエア霧化用の低速回転とに切換える回転モー
タ制御装置と、
前記カツプ状頭の周囲に配設されたシエーピン
グ用エア噴出口を備え、少くとも前記回転モータ
を高速回転させる時に該シエーピング用エア噴出
口よりエアを噴出させて、該カツプ状頭先端部よ
り放出される塗料の放出パターンを制御するパタ
ーン整形用エア噴出装置と、
前記カツプ状頭の周囲に配設された霧化用エア
噴出口を備え、前記回転モータを低速回転させる
時に該霧化用エア噴出口よりエアを噴出させて、
該カツプ状頭先端部より放出された塗料の霧化を
行う霧化用エア噴出装置と、
を備えたものとしてある。 Specifically, in a device that performs painting while applying a voltage between the object to be coated and the paint, it is equipped with a cup-shaped head that is rotationally driven by a rotary motor, and the paint supplied to the cup-shaped head is output from a distance. a paint ejector that discharges paint from the tip of the cup-shaped head; a rotary motor control device that switches the rotation of the rotary motor between high-speed rotation for rotary atomization and low-speed rotation for air atomization; A shaping air outlet is provided around the head, and at least when the rotary motor is rotated at high speed, air is jetted from the shaping air outlet, and the paint is discharged from the tip of the cup-shaped head. a pattern-shaping air blowout device for controlling a discharge pattern of the air, and an atomizing air blowout provided around the cup-shaped head, the air blowing device controlling the air blowing from the atomizing air blowout when rotating the rotary motor at a low speed. Blow out air,
An atomizing air blowing device for atomizing the paint ejected from the tip of the cup-shaped head.
（実施例）
以下本発明の実施例を添付した図面に基いて説
明する。(Example) Examples of the present invention will be described below with reference to the attached drawings.
第１図において、１は筒状とされた本体で、そ
の中空部２内には筒状の回転軸３が回転自在に配
設、保持されている。この回転軸３は、本体１の
後端部に取付けた回転モータとしてのエアモータ
４により駆動されるようになつており、このよう
な回転軸３の前端部には、第２図にも示すよう
に、いわゆるベルと呼ばれるカツプ状頭５が同心
状に螺合、一体化されている。 In FIG. 1, reference numeral 1 denotes a cylindrical main body, and a cylindrical rotating shaft 3 is rotatably disposed and held in a hollow portion 2 of the main body. This rotary shaft 3 is driven by an air motor 4 as a rotary motor attached to the rear end of the main body 1, and a rotary shaft 3 is installed at the front end of the rotary shaft 3 as shown in FIG. A cup-shaped head 5, so-called a bell, is concentrically threaded and integrated.
上記カツプ状頭５は、本体１の前端面側に形成
された断面略半円状の収納凹部６内に位置され
て、その前面が、その回転中心から径方向外方側
へ向かうにつれて徐々に前方へ向かうような湾曲
面とされている。このカツプ状頭５は第２図に詳
細に示すように、その回転中心部においてテーパ
状の連通口７が形成されて、この連通口７部分
に、回転軸３とこの内部に嵌挿されたノズル１０
との間隙８あるいは該ノズル１０内に形成された
通路を介して、塗料が供給されるようになつてい
る。また、カツプ状頭５は、上記連通口７の前面
において、円板状の分流板９が配設される一方、
回転軸３内には、連通口７に臨んで当該連通口７
を開閉するための上述したノズル１０が、前後方
向に変位自在として配設されている。なお、連通
口７部分への塗料供給（色替えの際の洗浄用シン
ナ供給についても同じ）は、エアモータ４の後端
部に設けたその接続部８ａに接続された配管１１
を介して行われ、また、ノズル１０による連通口
７の開閉は、エアモータ４の後輪部に設けられた
接続口１０ａに接続された配管１２からのエア供
排に応じて、図示を略すアクチユエータによつて
行われるようになつている。 The cup-shaped head 5 is located in a storage recess 6 formed on the front end side of the main body 1 and having a substantially semicircular cross section, and its front surface gradually increases as it goes radially outward from the center of rotation. It is said to be a curved surface that looks forward. As shown in detail in FIG. 2, this cup-shaped head 5 has a tapered communication opening 7 formed at its center of rotation, and the rotating shaft 3 and the inside thereof are fitted into this communication opening 7. Nozzle 10
The paint is supplied through the gap 8 between the nozzle 10 or the passage formed within the nozzle 10. In addition, the cup-shaped head 5 has a disc-shaped flow dividing plate 9 disposed on the front surface of the communication port 7, while
Inside the rotating shaft 3, there is a communication port 7 facing the communication port 7.
The above-mentioned nozzle 10 for opening and closing is disposed so as to be freely displaceable in the front-rear direction. The paint is supplied to the communication port 7 (the same applies to the supply of cleaning thinner when changing colors) through a pipe 11 connected to the connection 8a provided at the rear end of the air motor 4.
Opening and closing of the communication port 7 by the nozzle 10 is performed via an actuator (not shown) in response to air supply and discharge from a pipe 12 connected to a connection port 10a provided at the rear wheel portion of the air motor 4. It is now being carried out by
前記本体１の前端部は、カツプ状頭５の先端部
周囲を取り囲むようにされ、このような本体１の
前端部には、第３図にも示すように、シエーピン
グエア噴出口１３と霧化用エア噴出口１４とが、
それぞれその周回り方向に間隔をあけて多数開口
されている。上記２つのエア噴出口１３，１４の
うち、エア噴出口１３は、回転霧化時における塗
料放出パターンを整形する関係上、その噴出方向
は、本体１（カツプ状頭５）の前方へ向かうにつ
れて徐々にこの径方向外方側へ広がるように指向
されている（第１図、第２図一点鎖線矢印参照）。
また、エア噴出口１４は、エア霧化時における塗
料霧化を行う関係上、その噴出方向は、本体１
（カツプ状頭５）の前方を向かうにつれて、この
径方向中心側に集束するように指向されている
（第１図、第２図破線矢印参照）。勿論、両エア噴
出口１３，１４は、エア供給路１５あるいは１６
を介して、それぞれ後述する専用のエア供給装置
に接続されている。 The front end of the main body 1 surrounds the tip of the cup-shaped head 5, and as shown in FIG. The air outlet 14 is
Each has a large number of openings spaced apart in the circumferential direction. Of the two air jet ports 13 and 14, the air jet port 13 shapes the paint discharge pattern during rotational atomization, so the jet direction is directed toward the front of the main body 1 (cup-shaped head 5). It is oriented so as to gradually expand outward in the radial direction (see the dashed-dotted line arrows in FIGS. 1 and 2).
In addition, the air jet port 14 atomizes the paint during air atomization, so the direction of the air jet port 14 is limited to the main body 1.
As it goes toward the front of the cup-shaped head 5, it is oriented so as to converge toward the center in the radial direction (see broken line arrows in FIGS. 1 and 2). Of course, both the air outlets 13 and 14 are connected to the air supply path 15 or 16.
are connected to dedicated air supply devices, which will be described later.
前記シエーピング用エアのエア供給路１５は、
エアモータ４の後端部に設けたその接続部１５ａ
に連なる配管１７を介して、エアタンク１８に接
続され、この配管１７の途中には開閉弁１９が接
続されている。また、前記エア霧化用のエア供給
路１６は、エアモータ４の後端部に設けたその接
続部１６ａに連なる配管２０を介して、エアタン
ク２１に接続され、この配管２０の途中には開閉
弁２２が接続されている。勿論、上記両エアタン
ク１８，２１のうち、エアタンク１８には、シエ
ーピング用の比較的低圧のエア（例えば0.5Kg／
cm2）が貯留され、またエアタンク２１には、エア
霧化用の比較的高圧のエア（例えば４〜５Kg／
cm2）のエアが貯留されている。 The air supply path 15 for the shaping air is
Connection part 15a provided at the rear end of the air motor 4
The air tank 18 is connected to an air tank 18 via a pipe 17 connected to the air tank 18, and an on-off valve 19 is connected in the middle of the pipe 17. The air supply path 16 for air atomization is connected to an air tank 21 via a pipe 20 connected to a connecting portion 16a provided at the rear end of the air motor 4, and an on-off valve is provided in the middle of this pipe 20. 22 are connected. Of course, of the two air tanks 18 and 21, the air tank 18 is filled with relatively low-pressure air for shaping (for example, 0.5 kg/min).
cm 2 ) is stored in the air tank 21, and relatively high pressure air for air atomization (for example, 4 to 5 kg/cm 2 ) is stored in the air tank 21.
cm 2 ) of air is stored.
前記エアモータ４は、供給されるエア圧に応じ
てその回転数が変化されるものとされ、このエア
モータ４の回転数切換えのため、その接続部４ａ
に対して共通配管２３が接続されている。この共
通配管２３は途中で２本に分岐されて、一方の分
岐管２３ａがエアタンク２４に接続され、また他
方の分岐管２３ｂがエアタンク２５に接続され、
この両分岐管２３ａ，２３ｂには、開閉弁２６あ
るいは２７が接続されている。そして、上記両エ
アタンク２４，２５のうち、エアタンク２４に
は、エアモータ４をエア霧化用に適した低速回転
（例えば毎分3000回転）とするための低圧のエア
（例えば0.5Kg／cm2）が貯留され、またエアタンク
２５には、エアモータ４を回転霧化用に適した高
速回転（例えば毎分9.000回転）とするための高
圧エア（例えば４Kg／cm2）が貯留されている。 The rotation speed of the air motor 4 is changed according to the supplied air pressure, and in order to change the rotation speed of the air motor 4, the connecting portion 4a is
A common pipe 23 is connected to. This common pipe 23 is branched into two in the middle, one branch pipe 23a is connected to an air tank 24, and the other branch pipe 23b is connected to an air tank 25.
An on-off valve 26 or 27 is connected to both branch pipes 23a and 23b. Of the two air tanks 24 and 25, the air tank 24 contains low-pressure air (for example, 0.5 Kg/cm 2 ) to rotate the air motor 4 at a low speed (for example, 3000 revolutions per minute) suitable for air atomization. The air tank 25 also stores high-pressure air (for example, 4 kg/cm 2 ) for making the air motor 4 rotate at a high speed (for example, 9,000 revolutions per minute) suitable for rotary atomization.
次に、以上のような構成の作用について、回転
霧化を行う場合とエア霧化を行う場合とに分けて
説明する。 Next, the operation of the above configuration will be explained separately for the case where rotational atomization is performed and the case where air atomization is performed.
回転霧化の場合
例えばソリツド系の塗料を用いて塗装する場
合であり、開閉弁２２，２６が閉とされる一
方、開閉弁１９，２７が開とされる。これによ
り、エアモータ４すなわちカツプ状頭５が回転
霧化用に高速回転とされると共に、エア噴出口
１３からはシエーピング用エアが第１図、第２
図一点鎖線矢印で示すように噴出される。した
がつて、第１図、第２図実線矢印で示すよう
に、カツプ状頭５の連通口７よりその回転中央
部に供給された塗料は、遠心力の作用によつ
て、該カツプ状頭５の前面を径方向外方側へ向
けて流れて、その先端部より被塗物へ向けて放
出される。勿論、このカツプ状頭５より放出さ
れた塗料は、該カツプ状頭５が高速回転されて
いるため、十分に霧化（回転霧化）されてい
る。 In the case of rotary atomization, for example, when painting with a solid paint, the on-off valves 22 and 26 are closed, while the on-off valves 19 and 27 are opened. As a result, the air motor 4, that is, the cup-shaped head 5 is rotated at high speed for rotational atomization, and the air for shaping is emitted from the air outlet 13 as shown in FIGS. 1 and 2.
It is ejected as shown by the dashed line arrow in the figure. Therefore, as shown by the solid line arrows in FIGS. 1 and 2, the paint supplied from the communication port 7 of the cup-shaped head 5 to the rotational center of the cup-shaped head 5 is transferred to the cup-shaped head by the action of centrifugal force. 5 flows outward in the radial direction, and is discharged from its tip toward the object to be coated. Of course, the paint discharged from the cup-shaped head 5 is sufficiently atomized (rotational atomization) because the cup-shaped head 5 is rotated at high speed.
エア霧化の場合
例えばメタリツク系塗料を開いて塗装する場
合であり、開閉弁２７が閉とされる一方、開閉
弁２２，２６が開とされる。これにより、エア
モータ４すなわちカツプ状頭５がエア霧化用に
適した低速回転とされると共に、エア噴出口１
４からは、霧化用エアが第１図、第２図破線矢
印で示すように噴出される。したがつて、カツ
プ状頭５より放出された直線の塗料は、回転霧
化の場合に比して十分微粒化されていないが、
霧化用エアの作用によつて十分に霧化された
後、被塗物へ向かうことになる。なお、開閉弁
１９は開または閉のいずれであつてもよい（エ
ア霧化の場合は、シエーピング用エアを必らず
しも必要としないが、このシエーピング用エア
を用いることもできる）。 In the case of air atomization, for example, when applying a metallic paint, the on-off valve 27 is closed, while the on-off valves 22 and 26 are opened. As a result, the air motor 4, that is, the cup-shaped head 5, is rotated at a low speed suitable for air atomization, and the air outlet 1 is rotated at a low speed suitable for air atomization.
4, atomizing air is blown out as shown by broken line arrows in FIGS. 1 and 2. Therefore, although the linear paint ejected from the cup-shaped head 5 is not sufficiently atomized compared to the case of rotary atomization,
After being sufficiently atomized by the action of the atomizing air, it heads toward the object to be coated. Note that the on-off valve 19 may be open or closed (in the case of air atomization, shaping air is not necessarily required, but this shaping air can also be used).
ここで、上述した回転霧化とエア霧化との切換
えに伴う開閉弁１９，２２，２６，２７の開また
は閉の制御は、図示を略す制御回路によつて自動
的に行うようにしてあるが、これ等の開閉弁１
９，２２，２６，２７は、塗装雰囲気中あるいは
この近傍に設けられる場合は防爆上エア作動式と
し、また防爆を格別考慮する必要のない位置に配
設できる場合は電磁式のものとすることができ
る。勿論、塗料は、例えばカツプ状頭５を流れる
間に帯電されて、被塗物に対して所定の電位差が
与えられるものである。 Here, the control of opening and closing of the on-off valves 19, 22, 26, and 27 associated with switching between rotary atomization and air atomization as described above is automatically performed by a control circuit (not shown). However, these on-off valves 1
9, 22, 26, and 27 should be explosion-proof, air-operated type when installed in or near the painting atmosphere, and electromagnetic type if they can be installed in a location that does not require special considerations for explosion-proofing. Can be done. Of course, the paint is charged while flowing through the cup-shaped head 5, and a predetermined potential difference is applied to the object to be coated.
（発明の効果）
本発明は以上述べたことから明らかなように、
カツプ状頭を回転霧化用とエア霧化用とに兼用し
て回転霧化とエア霧化とを同一の静電塗装装置に
おいて選択的に切換え、使用することができるの
で、この回転霧化用とエア霧化用との静電塗装装
置を別個に設けていた従来のものに比して設置コ
ストを大幅に低減することができる。また、この
回転霧化とエア霧化との切替えに際しても、静電
塗装装置そのものの配置替えという必要もなくな
るので、回転霧化とエア霧化との段取替えの作業
を短時間のうちにスムーズに行うことができる。(Effects of the Invention) As is clear from the above, the present invention has the following advantages:
Since the cup-shaped head can be used for both rotational atomization and air atomization, it is possible to selectively switch between rotational atomization and air atomization in the same electrostatic coating device. Installation costs can be significantly reduced compared to conventional systems that require separate electrostatic coating devices for use and air atomization. In addition, when switching between rotary atomization and air atomization, there is no need to rearrange the electrostatic coating equipment itself, so the setup change between rotary atomization and air atomization can be done smoothly in a short time. can be done.
第１図は本発明の一実施例を示す全体系統図。
第２図は第１図の要部拡大断面図。第３図はカツ
プ状頭とこの周辺部分をその前面側より見た半分
簡略正面図。
４：エアモータ（回転モータ）、５：カツプ状
頭、１３：シエーピング用エア噴出口、１４：霧
化用エア噴出口、１８：エアタンク（シエーピン
グ用）、２１：エアタンク（霧化用）、２４：エア
タンク（低速回転用）、２５：エアタンク（高速
回転用）、１９，２２，２６，２７：開閉弁。
FIG. 1 is an overall system diagram showing one embodiment of the present invention.
FIG. 2 is an enlarged sectional view of the main part of FIG. 1. Figure 3 is a half-simplified front view of the cup-shaped head and its surrounding parts, seen from the front side. 4: Air motor (rotating motor), 5: Cup-shaped head, 13: Shaping air outlet, 14: Atomizing air outlet, 18: Air tank (for shaping), 21: Air tank (for atomizing), 24: Air tank (for low speed rotation), 25: Air tank (for high speed rotation), 19, 22, 26, 27: Open/close valve.
Claims (1)
を行うものにおいて、 回転モータにより回転駆動されるカツプ状頭を
備え、該カツプ状頭に供給された塗料を遠心力に
より該カツプ状頭の先端部より放出する塗料放出
器と、 前記回転モータの回転を、回転霧化用の高速回
転とエア霧化用の低速回転とに切換える回転モー
タ制御装置と、 前記カツプ状頭の周囲に配設されたシエーピン
グ用エア噴出口を備え、少くとも前記回転モータ
を高速回転させる時に該シエーピング用エア噴出
口よりエアを噴出させて、該カツプ状頭先端部よ
り放出される塗料の放出パターンを制御するパタ
ーン整形用エア噴出装置と、 前記カツプ状頭の周囲に配設された霧化用エア
噴出口を備え、前記回転モータを低速回転させる
時に該霧化用エア噴出口よりエアを噴出させて、
該カツプ状頭先端部より放出された塗料の霧化を
行う霧化用エア噴出装置と、 を備えていることを特徴とする静電塗装装置。[Scope of Claims] 1. A device that performs painting while applying a voltage between the object to be coated and the paint, comprising a cup-shaped head that is rotationally driven by a rotary motor, and a paint that is supplied to the cup-shaped head. a paint ejector that discharges paint from the tip of the cup-shaped head by centrifugal force; a rotary motor control device that switches the rotation of the rotary motor between high-speed rotation for rotary atomization and low-speed rotation for air atomization; A shaping air outlet is provided around the cup-shaped head, and at least when the rotary motor is rotated at high speed, air is blown out from the shaping air outlet and released from the tip of the cup-shaped head. a pattern-shaping air jet device for controlling the release pattern of the paint; and an atomizing air jet port disposed around the cup-shaped head, and the atomizing air jet device controls the atomizing air jet when the rotary motor is rotated at a low speed. Air is blown out from the outlet,
An electrostatic coating device comprising: an atomizing air jet device that atomizes paint ejected from the tip of the cup-shaped head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59196785A JPS6174666A (en) | 1984-09-21 | 1984-09-21 | Electrostatic painting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59196785A JPS6174666A (en) | 1984-09-21 | 1984-09-21 | Electrostatic painting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6174666A JPS6174666A (en) | 1986-04-16 |
| JPH0456674B2 true JPH0456674B2 (en) | 1992-09-09 |
Family
ID=16363594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59196785A Granted JPS6174666A (en) | 1984-09-21 | 1984-09-21 | Electrostatic painting device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6174666A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3473718B2 (en) * | 1994-07-22 | 2003-12-08 | 日産自動車株式会社 | Rotary atomization electrostatic coating method and apparatus |
| JP4428973B2 (en) | 2003-09-10 | 2010-03-10 | トヨタ自動車株式会社 | Rotating atomizing coating apparatus and coating method |
| JP5350132B2 (en) * | 2009-08-20 | 2013-11-27 | 本田技研工業株式会社 | Rotary atomizing coating equipment |
-
1984
- 1984-09-21 JP JP59196785A patent/JPS6174666A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6174666A (en) | 1986-04-16 |
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