JPS6025564A - Electrostatic spray apparatus - Google Patents

Abstract

PURPOSE:To perform the deformation of a pattern in an extremely simple way and to uniformize the distribution of a film thickness, by attaching a shutter to an air ring in order to deform a painting pattern. CONSTITUTION:A shutter 21 consists of a cylindrical inlay part 21A, a closure part 21B having a tapered surface and notch parts 21C positioned at the left and right of the closure part 21B. When two shutters 21 are inlaid with an air ring 7 and secured by threading a screw into a screw hole 21D, air holes 8 at the upper and lower positions among a large number of air holes 8 are closed by the closure part 21B to form such a state that shaving air can inject from the air holes 8 at the left and right positions through the notch parts 21C. Each shutter 21 can be rotated to an arbitrary direction and, if the shape of the closure part 21B and the notch parts 21C is formed into an arbitrary shape, various painting patterns can be easily obtained by changing only the shutter.

Description

【発明の詳細な説明】 本発明は、回転霧化頭から噴霧された塗装パターンを任
意の形状に変形しうるようにした静電噴霧装置に関する
ものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an electrostatic spraying device that can transform a coating pattern sprayed from a rotating atomizing head into any desired shape.

この種の静電噴霧装置のうち、塗装パターン成形用ニア
リングとして多数のエア穴を円形状に形成したものとし
て、従来第１図ないし第５図に示すものが知られている
。Among this type of electrostatic spraying apparatus, those shown in FIGS. 1 to 5 are conventionally known as those in which a large number of air holes are formed in a circular shape as a near ring for forming a coating pattern.

即ち、図中１は静電噴霧装置の本体を示し、該本体１内
にはエアモータ、電動モータ等の回転源（図示せず）が
内蔵嘔扛、また該本体１に標回転軸２が玉軸受、空気軸
受等の手段を介して回転自在に軸支さ九、該回転軸２の
一端は前記回転源に固着？九、その他端は本体１外に突
出している。That is, 1 in the figure shows the main body of the electrostatic spraying device, and the main body 1 has a built-in rotation source (not shown) such as an air motor or an electric motor. The rotating shaft 2 is rotatably supported via means such as a bearing or an air bearing, and one end of the rotating shaft 2 is fixed to the rotation source. 9. The other end protrudes outside the main body 1.

３は前記回転軸２の他端側に固着さｎたベル型の回転霧
化頭で、該回転霧化頭３れ回転源によって例えば３０，
０００〜１００，０００ｒｐｍで高速回転せしめられる
。４は塗料チューブで、該塗料チューブ４の一端は塗料
タンク等の塗料源（図示せず）Ｋ接続さｆＬ、その他端
は本体１の前端ＩＡ側においてフィードチューブ５の一
端と接続４１１．、該フィードチューブ５の他端は回転
霧化頭３内に延在してその接液面に塗料を供給するよう
にな烙れている。Reference numeral 3 denotes a bell-shaped rotating atomizing head fixed to the other end of the rotating shaft 2, and the rotating atomizing head 3 is rotated by a rotation source, for example, 30,
It is rotated at a high speed of 000 to 100,000 rpm. 4 is a paint tube; one end of the paint tube 4 is connected to a paint source (not shown) such as a paint tank fL, and the other end is connected to one end of a feed tube 5 on the front end IA side of the main body 1 411. The other end of the feed tube 5 extends into the rotary atomizing head 3 to supply paint to its wetted surface.

７は回転霧化頭３の背面側に位置して本体ｌの前端ＩＡ
側に固着’Ｉｔだニアリングで、該ニアリング７には回
転霧化頭３から噴霧嘔れた塗装パターンを成形するため
該回転霧化頭３に向けて第１図中の矢示Ａに示す如きシ
ェーピングエア含噴出するため、多数のエア、穴８，８
．・−・が円形状に穿設８ｎている（第２図参照）。ま
た、前記ニアリング７には各エア穴８と連通する円環状
のエア室９が形成嘔九、該エア室９には一端がエア源（
図示せず）と接続され、他端が本体１の前端ＩＡ側に接
続てれたエアチューブ１０を介してパターン成形用エア
が供給嘔几るようになされている。7 is located on the back side of the rotating atomizing head 3 and is located at the front end IA of the main body l.
With the nearing fixed to the side, the nearing 7 is sprayed from the rotating atomizing head 3 as shown by arrow A in FIG. A large number of air holes 8, 8 are used to eject shaping air.
．． ... are circularly bored 8n (see Fig. 2). Further, an annular air chamber 9 is formed in the near ring 7 and communicates with each air hole 8, and one end of the air chamber 9 is connected to an air source (
Air for pattern forming is supplied through an air tube 10 whose other end is connected to the front end IA of the main body 1 (not shown).

一方、１１．１２は互いに平行となるように絶縁材を介
して本体の図中上下位置に配設さ′７′したパターン変
形用電極（プローブ）、１３は一端が〜−３０〜−１２
０（ＫＶ）の高電圧を発生する高電圧発生器（図示せず
）と接続嘔カ１、他端が各パターン変形用電極１１．１
２と接続された高電圧ケーブルで、該高電圧ケーブル１
３を介して該各パターン変形用電極１１．１２に所定の
高電圧（例えは−９０（ＫＶ））’を印加することによ
って、塗装パターンを後述する如く楕円形状に変形しう
るようにな嘔ｆしている。On the other hand, 11 and 12 are electrodes (probes) for pattern deformation that are arranged parallel to each other at the upper and lower positions of the main body in the figure through insulating materials, and 13 is a pattern deformation electrode (probe) with one end of ~ -30 to -12
Connector 1 is connected to a high voltage generator (not shown) that generates a high voltage of 0 (KV), and the other end is each pattern deforming electrode 11.1.
A high voltage cable connected to 2, the high voltage cable 1
By applying a predetermined high voltage (for example, -90 (KV))' to each pattern deforming electrode 11. I'm doing f.

さらに、１４は一端が−３０〜−１２０（ｌぐ■〕の高
電圧を発生する高電圧発生器（図示せず）と接続爆ｎ１
他端が本体１と接続δｆＬ′ｆｃ高電圧ケーブルで、該
高電圧ケーブル１４ｆ：、介して本体１に所定の高置（
例えば−９０（ｉぐ■〕）を印加することによって、回
転軸２を介して回転霧化頭３に当該高電圧を印加しうる
ようにな芒扛ている。Further, 14 has one end connected to a high voltage generator (not shown) that generates a high voltage of -30 to -120 (lg■).
The other end is a high voltage cable δfL'fc connected to the main body 1, and the high voltage cable 14f: is connected to the main body 1 at a predetermined height (
For example, the high voltage can be applied to the rotary atomizing head 3 via the rotary shaft 2 by applying -90 (igu ■).

なお、図中１５はコンベアを示し、該コンベア１５から
は多数のハンガ１６が懸吊嘔れ、臥ハンガ１６には被塗
物１７が吊下さｎ、該コンベア１５を移動嘔せることに
より順次被塗物１７に塗装作業を施すようにな嘔九てい
る。また１８゜１８、・・−はニアリング７に形成した
本体１への取付用ボルト穴を示す。In the figure, reference numeral 15 indicates a conveyor, and a large number of hangers 16 are suspended from the conveyor 15, and articles 17 to be coated are suspended from the lying hangers 16, and by moving the conveyor 15, the articles 17 are sequentially coated. Painting work is now being applied to lacquerware 17. Further, 18°18, . . . indicate bolt holes formed in the near ring 7 for attachment to the main body 1.

従来技術による静電噴霧装置は前述のように構ば−９０
（ＫＶ））’ｅ印加し、また被塗物１７をアース電位に
保持する。The electrostatic spraying device according to the prior art is constructed as described above.
(KV))'e is applied, and the object to be coated 17 is held at ground potential.

一方、回転源により回転霧化頭３を高速回転すると共に
、塗料チューブ４．フィードチューブ５を介して該回転
伜化頭３の接液面に塗料を供給すると、この塗料は遠心
力により薄膜化づｎ、その放出端縁から塗料の液系（カ
スプ）として放出さｎ、嘔らにこの液系を静電的に微粒
化することＫよって負に帯電した帯電塗料粒子となる。Meanwhile, the rotary atomizing head 3 is rotated at high speed by the rotation source, and the paint tube 4. When paint is supplied through the feed tube 5 to the liquid-contacting surface of the rotating heating head 3, this paint becomes a thin film due to centrifugal force, and is discharged as a liquid paint system (cusp) from its discharge edge. In addition, this liquid system is electrostatically atomized to form negatively charged paint particles.

そして、前記帯電塗料粒子は回転霧化頭３と被塗物１７
との間に形成場する電気力線ＥＫ沿って飛行し、該被塗
物１７に塗着する。Then, the charged paint particles are transferred to the rotating atomizing head 3 and the object 17 to be coated.
It flies along the lines of electric force EK formed between the two and coats the object 17 to be coated.

この際、大部分の帯電塗料粒子は電気力線Ｅに沿って被
塗物１７に塗着するものの、回転霧化頭３は高速回転し
ているためその一部分は遠心力方向に飛散してしまい、
均一な塗膜を有する塗装パターンを得ることができない
。そこで、エアチュー７１０’ｉ介してニアリング７の
エア室９ヘパターン成形用エアを供給し、嘔らに各エア
穴８から回転霧化頭３の放出端縁近傍に向けてシェーピ
ングエアＡｖｉ：図中矢示の如く噴出する。こ１により
、塗装パターンはシェーピングエアＡによりて包まル、
第４図に示すように中心に円形穴を有するドーナツ状の
塗装パターンを得ることができる。At this time, most of the charged paint particles adhere to the object 17 along the lines of electric force E, but since the rotary atomizing head 3 is rotating at high speed, some of them are scattered in the direction of centrifugal force. ,
It is not possible to obtain a coating pattern with a uniform coating. Therefore, pattern forming air is supplied to the air chamber 9 of the near ring 7 through the air tube 710'i, and shaping air Avi is directed from each air hole 8 toward the vicinity of the discharge edge of the rotating atomizing head 3. It gushes out like this. With this step, the coating pattern is wrapped by shaping air A.
As shown in FIG. 4, a donut-shaped coating pattern with a circular hole in the center can be obtained.

ところで、被塗物１７が板体や自動車車体等の場合には
、静電噴霧装置をレシプロケータに取付け、該静電噴霧
装置を往復動嘔せっつ塗装作業を行なう。このため、前
述したように塗装パターンがドニナツ状となっていると
、往復動時に被塗物１７の端縁からの塗料吹き抜は量が
多く塗着効率を低下烙せるという問題がある。また、ド
ーナツ状塗装パターンの重ね合せ部分の大小に応じて、
当該重ね合せ部分の塗膜厚さが大きく変ってしまい、均
一な塗膜分布を得ることが困難であるという問題がある
。By the way, when the object 17 to be coated is a plate, an automobile body, or the like, an electrostatic spraying device is attached to a reciprocator, and the electrostatic spraying device is reciprocated to perform the coating operation. For this reason, if the coating pattern is in the shape of a cone as described above, there is a problem in that a large amount of paint blows out from the edge of the object 17 during reciprocating movement, which may reduce the coating efficiency. Also, depending on the size of the overlapping part of the donut-shaped painting pattern,
There is a problem that the thickness of the coating film in the overlapping portion changes greatly, making it difficult to obtain a uniform coating distribution.

このような問題を解決するため、本体１の上下位置にパ
ターン変形用電極１１．１２を取付け、該各電極１１．
１２に高電圧ケーブル１３を介して回転霧化頭３に供給
した高電圧と同一の極にある所定の高電圧（例えば−９
０［：ＫＶ］）を印加する。In order to solve this problem, pattern deformation electrodes 11 and 12 are attached to the upper and lower positions of the main body 1, and each electrode 11.
12 is supplied with a predetermined high voltage (for example, −9
0[:KV]) is applied.

この結果、各パターン変形用電極１１．１２の周囲にも
負の静電界が形成場れ、負に帯電した帯電塗料粒子は当
該静電界に反発さ几て図中左、右方向に逃げ、第５図０
）に示す如く中心に楕円穴を有する楕円状ないし鼓状の
塗装パターンに変形嘔せることができ、塗料吹き抜は量
が少なく、また塗着効率が高く、均一な塗膜の塗装を得
ることができる。As a result, a negative electrostatic field is also formed around each pattern deformation electrode 11, 12, and the negatively charged paint particles are repelled by the electrostatic field and escape to the left and right in the figure. 5 figure 0
) As shown in (), it can be deformed into an elliptical or drum-shaped coating pattern with an elliptical hole in the center, the amount of paint blowout is small, the coating efficiency is high, and a uniform coating film can be obtained. I can do it.

しかし、前述した如きパターン変形用電！１１゜１２を
用いたものは、次のような欠点がある。第１に、パター
ン変形用電極１１．１２によって帯電塗料粒子が反発さ
ｎ、当該塗料粒子が左、右方向に逃げることによって第
４図のドーナツ状塗装パターンが第５図（イ）の楕円状
ないしは鼓状塗装パターンに変形するだけであるため、
その塗膜厚さは第５図（ロ）に示す如く左、右方向の中
心部分が薄くなりてしまう。この結果、レシプロケータ
によって縦方向に往復動場せ９つ塗装作業を行なうとき
、重ね合せ部分の塗膜厚６に比較して中心部分の塗膜厚
さが非常に薄くなり、全体にわたって均一な塗膜分布を
得ることができないという欠点がある。第２に、本体１
にパターン変形用電極１１゜１２を別途取付ける必要が
あるばかりでなく、高゛　電圧ケーブル１３、高電圧発
生器等が必要となり、構造が複雑で、高価となる欠点が
ある。第３に、回転お化頭３に向けてパターン変形用電
極１１゜１２が突出しているため、回転霧化頭３を洗浄
したり、修理交換するとき、当該電極１１．１２が作業
者の目に当ったりして非常に危険な状態で作業をしなく
てはならないという欠点がある。However, as mentioned above, the pattern deformation electric power! The one using 11°12 has the following drawbacks. First, the charged paint particles are repelled by the pattern deforming electrodes 11 and 12, and the paint particles escape to the left and right, so that the donut-shaped coating pattern in Figure 4 changes to the elliptical shape in Figure 5 (A). Or it just transforms into a drum-shaped paint pattern,
As shown in FIG. 5(b), the thickness of the coating film becomes thinner in the center portions in the left and right directions. As a result, when painting 9 reciprocating fields in the vertical direction with a reciprocator, the thickness of the coating in the center becomes very thin compared to the coating thickness of 6 in the overlapped area, and the coating is uniform over the entire area. The disadvantage is that it is not possible to obtain a coating film distribution. Second, main body 1
Not only is it necessary to separately attach the pattern deformation electrodes 11 and 12 to the electrodes, but also a high-voltage cable 13, a high-voltage generator, etc. are required, and the structure is complicated and expensive. Thirdly, since the pattern deforming electrodes 11 and 12 protrude toward the rotating atomizing head 3, when cleaning the rotating atomizing head 3 or repairing or replacing it, the electrodes 11 and 12 may be exposed to the eyes of the operator. The disadvantage is that the work must be carried out in very dangerous conditions, such as being hit by something.

本発明は、前述した従来技術による静電噴霧装置の欠点
に鑑みなさｔ′したもので、パターン変形用電極を廃止
し、これに代えてニアリングに円形状に形成嘔庇た多数
のエア穴または該ニアリングに円環状に形成されたエア
スリ、トを所望の範囲だけ閉塞することＫよって、塗装
パターンを変形しうるよ５にした静電噴霧装置を提供す
ることを目的とするものである。The present invention has been made in view of the drawbacks of the electrostatic spraying device according to the prior art described above, and eliminates the pattern deforming electrode and replaces it with a large number of air holes or It is an object of the present invention to provide an electrostatic spraying device in which a coating pattern can be changed by closing a desired range of an air slit formed in an annular shape in the near ring.

前記目的を達成するために１本発明が採用する構成の特
徴は、ニアリングには円形状エア穴または円環状エアス
リットナ所望の範囲だけ閉塞することによって塗装パタ
ーンを変形するためのシャッタを設けたことにある。In order to achieve the above object, one feature of the configuration adopted by the present invention is that the near ring is provided with a shutter for deforming the coating pattern by closing only a desired area of a circular air hole or an annular air slit. be.

以下、本発明について第６図ないし第１０図に示す実施
例に基づいて説明する。なお、前述した従来技術と同−
溝底要素には同一符号を付し、その説明を省略するに、
本発明においては従来技術におけるパーターン変形用電
＠１１．１２および高電圧ケーブル１３等は設けられて
いない。The present invention will be explained below based on the embodiments shown in FIGS. 6 to 10. Note that the same as the conventional technology mentioned above.
The groove bottom elements are given the same reference numerals and their explanations are omitted.
In the present invention, the pattern deforming cables 11, 12, high voltage cable 13, etc. in the prior art are not provided.

然るに、第６図ないし第８図は本発明の第１の実施例に
して、２工は本発明に用いるシャッタを示し、該シャッ
タ２１はニアリング７の外周面に着脱自在に嵌着される
円筒状の嵌着部２１Ａと、該ニアリング７に形成場れた
多数のエア穴８のうち、上部と下部のエア穴を閉塞する
ため前面上。However, FIGS. 6 to 8 show a first embodiment of the present invention, and 2 shows a shutter used in the present invention. The fitting part 21A has a shaped fitting part 21A, and of the numerous air holes 8 formed in the near ring 7, the upper front surface is used to close the upper and lower air holes.

下位置に形成ｉｎた閉塞部２１１１．２１Ｂと、前記多
数のエア穴８のうち、左、右のエア穴からシェーピング
エアの噴出を許す如く、前記各閉塞部２１Ｂを除いて前
面左、右位置に開口する切欠部２１０．２ＩＣとから構
成嘔れ、かつ前記嵌着部２１Ａには複数のねじ穴２１Ｄ
が穿設’３ｔｔ、ている。The closing portion 2111.21B formed in the lower position and the front left and right positions except for the closing portions 211.21B and the left and right air holes of the large number of air holes 8 allow shaping air to be ejected from the left and right air holes. The fitting portion 21A has a plurality of screw holes 21D.
It has been drilled '3tt.

なお、前記閉塞部２ＪＢはエアの流九を置場ないように
するため、その表面がテーパ状となっている。Note that the surface of the closing portion 2JB is tapered in order to prevent the air from flowing.

本実施例は前述のように構成されるが、ニアリング７に
シャ、り２１を図示のように嵌着し、ねじ穴２１Ｄにね
じ（図示せず）を螺入することによって該ニアリング７
に固定する。この結果、多数のエア穴８のうち、上、下
位置のエア穴は閉塞部２１Ｂによって閉塞名牡、左、右
位置のエア穴からは切欠部２１Ｃｔ介してシェーピング
エアを噴出しうる状態にある。This embodiment is constructed as described above, but by fitting the collar 21 into the near ring 7 as shown in the figure and inserting a screw (not shown) into the screw hole 21D, the near ring 7 is
Fixed to. As a result, among the large number of air holes 8, the air holes at the upper and lower positions are blocked by the blocking part 21B, and shaping air can be ejected from the air holes at the left and right positions through the notch 21Ct. .

この状態で、従来技術のものと同様に回転霧化頭３を高
速回転すると共に高電圧を印加し、またその接液面に塗
料を供給する。この結果、回転霧化頭３から噴ａされた
帯電塗料粒子は、該回転霧化頭３と被塗物１７との間に
形成ち扛るｔ気力線ＢＫ沿りて飛行し、該被塗物１７に
塗着する。In this state, as in the prior art, the rotary atomizing head 3 is rotated at high speed and a high voltage is applied, and paint is supplied to the surface in contact with the liquid. As a result, the charged paint particles sprayed from the rotary atomizer head 3 fly along the air force line BK formed between the rotary atomizer head 3 and the object 17 to be coated, and Apply to object 17.

而して、エアチューブ１０を介してニアリング７のエア
室９ヘパターン成形用エアを供給する。Thus, pattern forming air is supplied to the air chamber 9 of the nearing 7 via the air tube 10.

ところが、シャッタ２１によって左、右位置のエア穴の
みが、シェーピングエアを噴出しうる状態になっている
から、本来第４図の如くドーナツ状となるべき塗装パタ
ーンは左、右位置から噴出するシェーピングエアによっ
て押付けらｎ、第８図０）の如く中心に長溝状穴を有す
る楕円状塗装パターンを得ることができる。However, because only the air holes at the left and right positions are in a state where shaping air can be ejected by the shutter 21, the painting pattern that should originally be donut-shaped as shown in Figure 4 is shaped like air ejected from the left and right positions. When pressed by air, it is possible to obtain an elliptical coating pattern with a long groove-shaped hole in the center as shown in FIG. 8 (0).

このように、従来技術のものがパターン変形用電極１１
．１２によって帯電塗料粒子を周辺に逃すものに比較し
、本考案のものはシャッタ２１の切欠部２１Ｃを介して
各エア穴８から噴出するシェーピングエアのエア圧を利
用し、第８図０）ニ示す塗装パターンに変形するもので
あるため、中心位置の円形穴も偏平に押付けらｎ１図示
のように長溝状穴となり、塗膜厚嘔は第８図←）Ｋ示す
如く均一なものとすることができる。従って、レシブｏ
ケ−ｐｔｉｃよって横方向に往復動させつつ塗装作業を
行なっても、全体にわたって均一塗膜を得ることができ
る。In this way, the pattern deforming electrode 11 of the prior art is
．． 12, which allows charged paint particles to escape to the surrounding area, the present invention utilizes the air pressure of shaping air ejected from each air hole 8 through the notch 21C of the shutter 21, and Since the coating pattern is to be changed as shown, the circular hole at the center should also be pressed flat to form a long groove-shaped hole as shown in Figure 8, and the thickness of the coating should be uniform as shown in Figure 8←)K. I can do it. Therefore, the receiver o
Even if the coating is performed while reciprocating in the lateral direction using the captic, a uniform coating film can be obtained over the entire surface.

次に、第９図および第１０図は本発明の第２の実施例を
示し、本実施例の特徴は塗装パターン成形用のシェーピ
ングエアを噴出するためのニアリングとして、円環状エ
アスリ、トな用いたもので、塗装パターンを変形するた
めのシャ、りは前述した第１の実施例のものと格別変る
ところがないので、該シャ、りについては同一符号を付
し、その説明を省略する。Next, FIG. 9 and FIG. 10 show a second embodiment of the present invention, and the feature of this embodiment is that an annular air slit is used as a near ring for blowing out shaping air for forming a coating pattern. Since the shutters for changing the coating pattern are not particularly different from those of the first embodiment described above, the same reference numerals are given to the shutters and the explanation thereof will be omitted.

然るに、３１は本実施例に用いるニアリングで、該ニア
リング３１には回転霧化頭３から噴霧さｎた塗装パター
ンを形成するため、該回転霧化頭に向けてシェーピング
エアを噴出するエアスリ、ト３２が円環状に形成場れて
いる。また、前記ニアリング３１には前記エアスリ、ト
３２と連通ずる円環弁のエア室３３が形成さｎ、該エア
室３３にハエアチューブ１０を介してパターン成形用エ
アが供給されるようになっている。図中、３４゜３４　
ｏ　’・・は本体１への取付用ボルト穴である。However, 31 is a nearing used in this embodiment, and the nearing 31 includes an air slit and a tip that eject shaping air toward the rotating atomizing head 3 in order to form a coating pattern sprayed from the rotating atomizing head 3. 32 is formed in an annular shape. Further, an air chamber 33 of an annular valve communicating with the air slit 32 is formed in the near ring 31, and pattern forming air is supplied to the air chamber 33 via the air tube 10. ing. In the figure, 34°34
o'... are bolt holes for attachment to the main body 1.

本実施例は前述のように構成嘔几るが、ニアリング３１
にシャ、り２１を装着し、その閉塞部２１ＢでエアスＩ
Ｊ　、　）　３２　？所望の範囲だけ閉塞することによ
り、塗装パターンを変形することができ、−均一な塗膜
を得ることができる。This embodiment has the structure as described above, but the nearing 31
Attach the shaft 21 to the block and close the air
J, ) 32? By occluding only the desired area, the coating pattern can be modified and - a uniform coating can be obtained.

なお、前述の各実施例では、シャッタ２１は切欠部２１
Ｃが左、右位置となるように取付け、塗装パターンを左
、右方向に偏平となるように変形するものとして述べた
が、該シャッタ２１は任意の方向に回転させることがで
き、例えばこｎを９０度回転ず几は、第５図に示すもの
と同様に上。In addition, in each of the above-mentioned embodiments, the shutter 21 is
Although the shutter 21 has been described as being installed so that C is at the left or right position and the coating pattern is deformed to become flat in the left or right direction, the shutter 21 can be rotated in any direction. Rotate the box 90 degrees and turn it over, similar to the one shown in Figure 5.

下方向に偏平となるように変形しうろことは勿論である
。また、塗装パターンの形状に応じて所望範囲のエア穴
またはエアスリ、トを閉塞しうるように、シャッタ２１
は閉塞部２１Ｂと切欠部２１Ｃと金任意の形状に形成す
ることができ、一方形状の異なるシャ、り２１を多数取
揃え、塗装パターンに応じて適宜交換してもよい。さら
に、シャッタ２１はニアリング７．３１のエア室９，３
３内固定的に、まｆｃは外部から回動操作可能に取付１
てもよい。さらにまた、シャ、り２１は少なくとも閉塞
部２１Ｂの部分を回動操作可能な二枚重ねとし、一方を
任意に回動することによって閉塞部２１Ｂと切欠部２１
Ｃとの比率を変更するように構成す１．ば、多数のシャ
、りを取揃える必要が１．ｃいものである。Of course, the scales deform to become flattened downward. In addition, the shutter 21 is designed so that a desired range of air holes or air slits can be closed depending on the shape of the coating pattern.
The closing part 21B and the notch part 21C can be formed into any desired shape.On the other hand, a large number of shields 21 with different shapes may be available and replaced as appropriate depending on the coating pattern. Further, the shutter 21 is connected to the air chambers 9 and 3 of the near ring 7.31.
3 is fixed inside, and fc is mounted so that it can be rotated from the outside 1
It's okay. Furthermore, the shutter 21 is made of two layers that can be rotated at least in the portion of the closing portion 21B, and the closing portion 21B and the cutout portion 21 can be rotated arbitrarily.
1. Constructed to change the ratio with C. For example, it is necessary to prepare a large number of shafts.1. It's ugly.

本発明に係゛る静電噴霧装置は以上詳細に述べた如くで
あって、ニアリングに塗装パターンを変形するためのシ
ャッタを取付ける構成としたから、従来技術の如くパタ
ーン変形用電極（グローブ）を使用するものに比較して
膜厚分布を均一にすることができ、極めて簡単な構成で
パターン変形を行なうことができる。また、洗浄作業、
修理交換作業に際しても安全性を確保でき、しかも短絡
事故等の危険性の虞九がない。嘔らに、シャッタの形状
を選択するのみで、塗装パターンの変更が容易であり、
また簡単に所望の塗装パターンを得ることができる等、
幾多の効果を奏する。The electrostatic spraying device according to the present invention is as described in detail above, and since it has a structure in which a shutter for changing a coating pattern is attached to the near ring, a pattern changing electrode (globe) is used as in the prior art. The film thickness distribution can be made more uniform compared to the one used, and pattern deformation can be performed with an extremely simple configuration. In addition, cleaning work,
Safety can be ensured during repair/replacement work, and there is no risk of short-circuit accidents or the like. Moreover, it is easy to change the painting pattern by simply selecting the shape of the shutter.
In addition, you can easily obtain the desired coating pattern, etc.
It has many effects.

【図面の簡単な説明】[Brief explanation of drawings]

第１図ないし第５図は従来技術による静電噴霧装置を示
し、第１図はその全体構成図、第２図はニアリングの正
面図、第３図は第２図中の■−■矢示方向断面図、第４
図社シェーピングエアのみを用いた場合の塗装パターン
の平面図、第５図はニアリングとパターン変形用電極と
を併用した場合の塗装パターンを示し、第５図（（）は
その平面図、第５図←）は塗膜厚さを示す断面図、第６
図ないし第８図は本発明による静電噴霧装置の第１の実
施例を示し、第６図はニアリングにシャッタを取付けた
状態を示す正面図、第７図は第６図中の■−■矢示方向
断面図、第８図はニアリングとシャッタとを併用した場
合の塗装パターンを示し、第８図ｆ１＞はその平面図、
第８図←）は塗膜厚？を示す断面図、ｗＪ９図および第
１０図１同じく本発明の第２の実施例を示し、８９図は
エナリングにシャッタを取付けた状態を示す正面図、第
１０図は第９図中のＸ−Ｘ矢示方向断面図である。 １・・・本体、２−・・回転軸、３・・・回転霧化頭、
４・・・塗料チューブ、５．−フィードチューブ、７．
３１・・・ニアリング、８・・・エア穴、９．３３・・
・エア室、１０・・・エアチューブ、１４・・・高電圧
ケーブル、１７・・・被塗物、２１・・・シャ、り、２
１Ａ・・・嵌着部、２１Ｂ・・・閉塞部、２１０・・・
切欠部、２１Ｄ・・・取付穴、３２・・・エアスリ、ト
。 特許出願人　日本ランズノ（−グ株式会社　−７ 第２図　第３図 第４図 第５図 （ロ） 手続補正書 − 昭和５８年　特　許　願第１３４７３０号２、発明の名
称　静電噴霧装置 ３、　補正をする者 事件との関係　特許出顔人 （ ４、代　理　人　〒　１６０ ６、補正により増加する発明の数　（増減なし）７、補
正の対象 σ〕　明細舎弟１１頁ａｋ　１０行 「如く中心に長音状穴を有する」と２）るのを、「如く
図中上下方向に長海合有する」と補正する。 ：２）明細書８１１頁第１７〜１９行 「あるため、中心−−−−一長（ｉ’ｊ’状穴となり」
とあるのを、「あるため、塗装パターンの円形穴は偏平
に押付けも几、その結果１示のように長溝状となり」と
補正する。 ３）添付１面中、第８図（イ）を別紙のように補正する
。 第８は （イ）Figures 1 to 5 show an electrostatic spraying device according to the prior art. Figure 1 is its overall configuration, Figure 2 is a front view of the near ring, and Figure 3 is indicated by the ■-■ arrows in Figure 2. Directional sectional view, 4th
Figure 5 is a plan view of the painting pattern when only Zusha shaping air is used, and Figure 5 shows the painting pattern when nearing and pattern deformation electrodes are used together. Figure ←) is a cross-sectional view showing the coating film thickness.
8 to 8 show a first embodiment of the electrostatic spraying device according to the present invention, FIG. 6 is a front view showing a state in which a shutter is attached to the near ring, and FIG. A sectional view in the direction of the arrow, FIG. 8 shows a coating pattern when nearing and shutter are used together, FIG. 8 f1> is a plan view thereof,
Figure 8←) is the coating thickness? FIG. 89 is a front view showing a state in which the shutter is attached to the enalling, and FIG. 10 is a cross-sectional view showing the second embodiment of the invention. It is a sectional view in the direction of the X arrow. 1... Main body, 2-... Rotating shaft, 3... Rotating atomizing head,
4...Paint tube, 5. - feed tube, 7.
31...Near ring, 8...Air hole, 9.33...
・Air chamber, 10...Air tube, 14...High voltage cable, 17...Object to be coated, 21...Shipping, 2
1A...Fitting part, 21B...Closing part, 210...
Notch, 21D...Mounting hole, 32...Air slit, G. Patent applicant: Nippon Ranzuno Co., Ltd. -7 Figure 2 Figure 3 Figure 4 Figure 5 (B) Procedural amendment - 1981 Patent Application No. 134730 2 Title of the invention Electrostatic spraying device 3 , Relationship with the case of the person making the amendment Patent Appearance Person (4, Agent 〒160 6, Number of inventions to be increased by amendment (no increase or decrease) 7, Subject of amendment σ] Specification author page 11 ak line 10 “Like 2) "It has a long hole in the center" is corrected to "It has a long hole in the vertical direction in the figure." 2) Page 811 of the specification, lines 17-19 "Because there is a long hole, the center... --One length (i'j' shaped hole)
This is corrected by saying, ``Because of this, the circular holes in the coating pattern cannot be pressed flat, resulting in a long groove shape as shown in 1.'' 3) In the attached page 1, correct Figure 8 (a) as shown in the attached sheet. The eighth is (a)

Claims (2)

【特許請求の範囲】[Claims] （１）内部に回転源を有する本体と、該本体に回転自在
に軸支嘔れ、一端が前記回転源に固着さｎ他端が該本体
外に突出する回転軸と、該回転軸の他端側に固着嘔ｎ、
微粒化された塗料を噴霧する回転噴化頭と、該回転霧化
頭の背面側に位置して前記本体忙取付けらｎ、該回転霧
化頭に向けて塗装パターン成形用のシェーピングエアを
噴出するため多数のエア穴が円形状に形成嘔ｎまたは円
環状エアスリ、トが形成されたニアリングとからなる静
電噴霧装置において、前記ニアリングには前記エア穴ま
たはエアスリットを所望の範囲だけ閉塞することＫよっ
て塗装パターンを変形するためのシャッタを設けたこと
を特徴とする静電噴霧装置。(1) A main body having a rotation source inside, a rotating shaft rotatably supported on the main body, one end fixed to the rotation source and the other end protruding outside the main body, and the other end of the rotating shaft Sticky on the edge,
A rotating atomizing head that sprays atomized paint, a rotating atomizing head located on the back side of the rotating atomizing head and attached to the main body, and a shaping air for forming a paint pattern directed toward the rotating atomizing head. In an electrostatic spraying device consisting of a near ring in which a large number of air holes are formed in a circular shape or an annular air slit, the near ring has a plurality of air holes or air slits formed in a circular shape. An electrostatic spraying device characterized by being provided with a shutter for changing a coating pattern. （２）　前記シャ、りは前記ニアリングに回転自在、か
つ着脱自在に取付けてなる特許請求の範囲（１）項記載
の静電噴霧装置。(2) The electrostatic spraying device according to claim (1), wherein the shaft is rotatably and detachably attached to the near ring.