JPS618154A - Rotary atomization coating equipment - Google Patents
Rotary atomization coating equipmentInfo
- Publication number
- JPS618154A JPS618154A JP12947784A JP12947784A JPS618154A JP S618154 A JPS618154 A JP S618154A JP 12947784 A JP12947784 A JP 12947784A JP 12947784 A JP12947784 A JP 12947784A JP S618154 A JPS618154 A JP S618154A
- Authority
- JP
- Japan
- Prior art keywords
- paint
- atomizing
- atomizing head
- discharge part
- head
- 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
- 238000000889 atomisation Methods 0.000 title claims description 24
- 239000011248 coating agent Substances 0.000 title claims description 17
- 238000000576 coating method Methods 0.000 title claims description 17
- 239000003973 paint Substances 0.000 claims abstract description 60
- 239000000919 ceramic Substances 0.000 claims abstract description 10
- 239000002245 particle Substances 0.000 claims abstract description 10
- 229920003002 synthetic resin Polymers 0.000 claims abstract description 9
- 239000000057 synthetic resin Substances 0.000 claims abstract description 9
- 238000010422 painting Methods 0.000 claims abstract 2
- 238000007664 blowing Methods 0.000 claims 1
- 238000010298 pulverizing process Methods 0.000 abstract 2
- 229910000838 Al alloy Inorganic materials 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 4
- 229910052581 Si3N4 Inorganic materials 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 239000007769 metal material Substances 0.000 description 3
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 3
- 238000009503 electrostatic coating Methods 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229930182556 Polyacetal Natural products 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000003562 lightweight material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229920006122 polyamide resin Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920006324 polyoxymethylene Polymers 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Landscapes
- Nozzles (AREA)
Abstract
Description
【発明の詳細な説明】 本発明は、回転霧化式塗装装置に関する。[Detailed description of the invention] The present invention relates to a rotary atomization coating device.
従来、ｔ！！１転霧化式塗装装置は、回転駆動装置の回
転軸に金属材料製の霧化頭を取付け、霧化頭の基端に塗
料供給路を接続し、霧化頭の先端に塗料放出部を形成し
、霧化頭を回転駆動装置を介して直流高電圧発生装置に
接続して荷電電極に兼用しており、回転駆動される荷電
電極兼用の霧化頭によって微粒化されて荷電された塗粒
が導電性材料の被塗装物との間に作用する静電引力によ
って霧化頭の前方位置の被塗装物に搬送される静電塗装
装置である。そして、近年においては、霧化頭の回転を
高速化して塗料の微粒化性能を向上させるため、回転駆
動装置にエアターボモータが用いられ、また、エアター
ボモータのトμりが低い欠点を補うため、霧化頭は、軽
量化が計られ、アμミニウム合金で製作されている。Conventionally, t! ! A one-turn atomization type coating device has an atomization head made of metal material attached to the rotating shaft of the rotation drive device, a paint supply path connected to the base end of the atomization head, and a paint discharge part at the tip of the atomization head. The atomizing head is connected to a DC high voltage generator via a rotation drive device and also serves as a charging electrode. This is an electrostatic coating device in which particles are conveyed to the object to be coated at a position in front of the atomizing head by electrostatic attraction acting between the particles and the object to be coated made of a conductive material. In recent years, air turbo motors have been used as rotary drive devices to speed up the rotation of the atomizing head and improve paint atomization performance. Therefore, the atomizing head is made of aluminum alloy to reduce weight.
ところが、アルミニウム合金製の霧化頭でもまだ重く、
高速回転させるにはエアターボモータに多量の空気を供
給しなければならず、空気の消費量が多い。捷た、腐食
力や研磨力のある塗料を用いる場合には、アルミニウム
合金製の霧化頭では十分な耐久性がない。このような場
合をでは、ステンレス鋼製の霧化頭を使用するが、霧化
頭が重くなり過ぎてエアターボモータで高速回転させる
ことができず、従って、塗料の微粒化性能を向上させる
ことができない。即ち、従来の霧化頭は、金属材料製で
あり、高速回転性と耐久性が十分てはない。However, even the atomizer head made of aluminum alloy is still heavy.
To rotate at high speed, a large amount of air must be supplied to the air turbo motor, resulting in a large amount of air consumption. When using paints that are warped, corrosive, or abrasive, aluminum alloy atomizer heads do not have sufficient durability. In this case, a stainless steel atomization head is used, but the atomization head is too heavy and cannot be rotated at high speed by the air turbo motor, so it is difficult to improve the atomization performance of the paint. I can't. That is, the conventional atomizing head is made of metal material and does not have sufficient high-speed rotation performance and durability.
また、従来の回転霧化式塗装装置は、静電式のものであ
り、被塗装物が絶縁性材料の場合は使用することができ
ず、また、静電式ではない塗装装置に比して、装置が大
掛りになり、使用法が簡便ではない。In addition, conventional rotary atomization coating equipment is electrostatic, and cannot be used when the object to be coated is an insulating material, and compared to non-electrostatic coating equipment, , the equipment is large-scale and it is not easy to use.
本発明の目的は、上記のような従来の欠点を改善し、耐
久性に優れた霧化頭を高速回転させて塗料の微粒化性能
を向上させることができる簡便な回転霧化式塗装装置を
提供することである。The purpose of the present invention is to improve the above-mentioned conventional drawbacks, and to provide a simple rotary atomizing coating device that can rotate the atomizing head at high speed and improve the atomization performance of paint. It is to provide.
本発明者は、上記の目的を達成するため、塗料による腐
食や研磨に対して耐久性が優れ、かつ。In order to achieve the above object, the inventors of the present invention have created a material that has excellent durability against corrosion and abrasion caused by paint.
軽量である材料として、セラミックと合成樹脂に着眼し
、また１回転霧化により生成した塗粒を被塗装物に搬送
する手段として、空気噴流にＭ限したのである。更に、
霧化頭において、腐食力又は研磨力のある塗料の流動に
よって腐食又は研磨され易い部分は、流動塗料が最大の
遠心力を受けて圧接する塗料放出部でおることに着眼し
たのである。We focused on ceramics and synthetic resins as lightweight materials, and we limited ourselves to air jets as a means of conveying the coating particles generated by single-rotation atomization to the object to be coated. Furthermore,
They focused on the fact that the part of the atomization head that is easily corroded or polished by the flow of paint with corrosive or abrasive power is the paint discharge part where the fluid paint comes into pressure contact under the greatest centrifugal force.
即ち、本発明は、回転駆動装置の回転軸に霧化頭を取付
け、霧化頭の基端に塗料供給路を接続し、霧化頭の先端
に塗料放出部を形成した回転霧化式塗装装置において、
霧化頭の塗料放出部を含む部分をセラミック又は合成樹
脂で形成し、霧化頭の塗料放出部から放出される塗粒を
霧化頭の前方へ搬送する空気を噴出する空気噴出孔を設
けたことを特徴とする回転霧化式塗装装置である。That is, the present invention provides a rotary atomizing coating system in which an atomizing head is attached to the rotating shaft of a rotary drive device, a paint supply path is connected to the base end of the atomizing head, and a paint discharge part is formed at the tip of the atomizing head. In the device,
The part of the atomizing head that includes the paint discharge part is made of ceramic or synthetic resin, and is provided with an air jet hole that blows out air that conveys the paint particles discharged from the paint discharge part of the atomizing head to the front of the atomizing head. This is a rotary atomization type coating device that is characterized by:
この回転霧化式塗装装置においては、霧化頭の塗料放出
部を含む部分は、セラミック又は合成樹脂で形成されて
いるので、金属材料で形成された従来のものに比して、
軽量であり、かつ、塗料による腐食や研磨に対して耐久
性が優れている。従って、霧化頭を高速回転させて塗料
の微粒化性能を向上させ石ことができる。また、腐食力
や研磨力のある塗料を用いても霧化頭の腐食又は研磨さ
れ易い部分が耐久性に優れているので、腐食力や研磨力
のある塗料の微粒化性能をも向上させることができる。In this rotary atomizing coating device, the part of the atomizing head that includes the paint discharge part is made of ceramic or synthetic resin, so compared to conventional ones made of metal materials,
It is lightweight and has excellent durability against corrosion and abrasion caused by paint. Therefore, the atomization head can be rotated at high speed to improve the atomization performance of the paint. In addition, even if a paint with corrosive power or abrasive power is used, the part of the atomizing head that is easily corroded or polished has excellent durability, so the atomization performance of paint with corrosive power or abrasive power can also be improved. I can do it.
更に１回転霧化により生成した塗粒の搬送に空気噴流を
用いるので、静電引力を用いる従来の”ものとは異なり
、被塗装物が絶縁性材料の場合にも使用することができ
、また、荷電ｘｉや直流高電圧発生装置等が不要であり
、装置が大掛りにならず、使用法が簡便である。Furthermore, since an air jet is used to transport the coating particles generated by one-rotation atomization, unlike conventional methods that use electrostatic attraction, it can be used even when the object to be coated is an insulating material. , a charge xi, a direct current high voltage generator, etc. are not required, the device is not large-scale, and the method of use is simple.
次に１本発明の実施例について説明する。Next, one embodiment of the present invention will be described.
第１実施例
本例の回転霧化式塗装装置は、第１図と第２図に示すよ
うに、最高回転数が毎分３万ないし６万回転になるエア
ターボモータ（１）のケース先端から突出した回転軸（
２）に１円筒部（４）の先端に円盤部（５）分向芯状に
連設したアルミニウム合金製のハブ（３）を挿嵌し、ハ
ブの円盤部（５）の中Ｉｕに穿設したテーバ状の取付孔
（６）にエアターボモータの回転軸（２）の、テーパ状
先端部を密嵌して、ハブの円盤部（５）の中心を線質し
た♂ルト（７）によってハブ（３）をエアターボモータ
の回転軸（２）に同芯状に取付けている一ハブ（３）の
外周には、Ｎ化珪素系セラミック製の円筒体（８）の後
半部を嵌合し１円筒体（８）の前半部をハブ（３）の前
方位置に突出して、円筒体（８）をその周壁に線質し九
ビヌ（９）と接着剤によってハブ（３）に同芯状に取付
け、一体化したハブ（３）と円筒体（８）によって霧化
頭を構成している。エアターボモータ（１）のケース先
端には１図示しない塗料供給装置に接続した塗料供給管
Ｏｎを取付け、塗料供給管αＱの先端開口を霧化頭のハ
ブの円筒部（４）内に配置して、霧化頭（３） 、 （
８）の基端に塗料供給路（１０を接続し、また、霧化頭
のハブの円筒部（４）先端周壁に１円筒体（８）の前半
部内に連通ずる多数の塗料通過孔０刀を等間隔に貫設し
、円筒体゛（８）の前半部内周面を塗料流動面０２に形
成し、また１Ｍ化頭の円筒体（８）の先端内周面に、塗
粒への空気の巻込を防止する多数の塗料放出溝Ｑ３を等
間隔に軸芯方向に沿って設け、霧化頭（３１、（８）の
先端の開口縁を塗料放出部０荀にしている。また、エア
ターボモータ（１）のケース先端には。1st Embodiment As shown in Figures 1 and 2, the rotary atomizing coating device of this example has an air turbo motor (1) at the tip of the case with a maximum rotation speed of 30,000 to 60,000 revolutions per minute. The rotating shaft protruding from (
Insert the aluminum alloy hub (3) which is connected to the tip of the cylindrical part (4) in the direction of the disc part (5) into 2), and drill into Iu in the disc part (5) of the hub. The tapered tip of the rotating shaft (2) of the air turbo motor is tightly fitted into the tapered mounting hole (6) provided, and the center of the disk portion (5) of the hub is attached to the wire-treated male bolt (7). The hub (3) is attached concentrically to the rotary shaft (2) of the air turbo motor.The rear half of the cylindrical body (8) made of silicon nitride ceramic is fitted onto the outer periphery of the hub (3). 1. Protrude the front half of the cylindrical body (8) to a position in front of the hub (3), paste the cylindrical body (8) onto its peripheral wall, and attach it to the hub (3) using the cylindrical body (9) and adhesive. A hub (3) and a cylindrical body (8) that are concentrically attached and integrated form an atomizing head. A paint supply pipe On connected to a paint supply device (not shown) is attached to the tip of the case of the air turbo motor (1), and the tip opening of the paint supply pipe αQ is placed inside the cylindrical part (4) of the hub of the atomizing head. te, atomization head (3), (
A paint supply channel (10) is connected to the base end of the atomizing head hub (4), and a large number of paint passage holes are connected to the front end of the cylindrical body (8) on the peripheral wall of the cylindrical part (4) of the hub of the atomizing head. are installed through them at equal intervals, and the inner peripheral surface of the front half of the cylinder (8) is formed into a paint flow surface 02, and the inner peripheral surface of the tip of the 1M cylinder (8) is provided with air to the paint particles. A large number of paint discharge grooves Q3 are provided at regular intervals along the axial direction to prevent entrainment of the paint, and the opening edges at the tips of the atomizing heads (31, (8)) are made into paint discharge portions. At the tip of the air turbo motor (1) case.
図示しない高圧空気供給装置に接続した円環状の空気管
Ｑ９を霧化頭（３） 、 （８）と同芯状に取付け、霧
化頭（３） 、 （８）の後側に位置する空気管Ｑ１１
の前面に多数の空気噴出孔（ＩＱを穿設して霧化頭（３
） 、 （８）の外径より大きい円周上に等間隔に配置
している。An annular air pipe Q9 connected to a high-pressure air supply device (not shown) is installed concentrically with the atomizing heads (3) and (8), and air is placed behind the atomizing heads (3) and (8). Tube Q11
A large number of air outlets (IQ) are drilled on the front of the atomization head (3
) and (8) are arranged at equal intervals on a circumference larger than the outer diameter.
本例の回転霧化式塗装装置を駆動すると、エアターボモ
ータ（１）の回転駆動によって、軽量な霧化頭（３１、
（８）が高速回転し、空気噴出孔明から空気が前方に噴
出し、塗料供給路叫から塗料が霧化頭（３）。When the rotary atomizing coating device of this example is driven, the air turbo motor (1) rotates and the lightweight atomizing head (31,
(8) rotates at high speed, air is ejected forward from the air outlet, and paint is atomized from the paint supply path (3).
（８）の基端側の開口内に供給される。回転中の霧化頭
のハブ（３）内に供給された塗料は、遠心力によって、
多数の塗料通過孔ａυを経て円筒体（８）の前半部内に
至り、円筒体の塗料流動面＠を薄膜状になって流動し、
多数の塗料放出溝（至）に流入して多数本の液糸流に分
流し、塗料放出部Ｑ４）から放射状に放出され、繊維状
微粒化が行なわれる。霧化頭先端の塗料放出部（１４）
から放射状に放出される塗粒は。(8) is supplied into the opening on the proximal end side. The paint supplied into the hub (3) of the rotating atomizing head is caused by centrifugal force.
It reaches the front half of the cylindrical body (8) through a large number of paint passage holes aυ, and flows in the form of a thin film on the paint flow surface of the cylindrical body.
The liquid flows into a large number of paint discharge grooves (to), is divided into a large number of liquid threads, and is discharged radially from a paint discharge part Q4), where it is atomized into fibrous particles. Paint discharge part at the tip of the atomizing head (14)
The coating particles are emitted radially from the .
空気噴出孔明から霧化頭（３） 、 （８）の外回り位
置を前方に噴出する空気噴流によって霧化頭（３） 、
（８）の前方方ＵＫア速さゎ、霧化頭（３）、（３）
。□方ヶ置工被塗装物に付着する。The atomizing head (3), (8) is caused by an air jet that is ejected forward from the outer circumferential position of the atomizing head (3), (8) from the air outlet hole.
(8) Forward UK speed, atomization head (3), (3)
. □Hatagaoki adheres to the object to be painted.
本例の回転霧化式塗装装置においては、霧化頭の円筒体
（８）の材料が屑食や研磨に対して耐久性に優れた窒化
珪累糸セラミックであるので、流動塗料が大きい遠心力
を受けて圧接する円筒体の塗料流動面（２）、塗料放出
溝−と塗料放出部Ｑ４）が腐食や研磨を受は難い。In the rotary atomizing coating device of this example, since the material of the cylindrical body (8) of the atomizing head is silicon nitride yarn ceramic, which has excellent durability against chipping and abrasion, the fluidized paint is The paint flow surface (2) of the cylindrical body, the paint discharge groove and the paint discharge part Q4) which are pressed against each other by force are not susceptible to corrosion or polishing.
なお、霧化頭の円筒体（８）の材料は、上記の窒化珪素
系以外のセラミック、例えば、酸化アルミニウム系又は
戻化珪素系のセラミックでもよい。Note that the material of the cylindrical body (8) of the atomizing head may be a ceramic other than the above-mentioned silicon nitride type, for example, an aluminum oxide type or a reconstituted silicon type ceramic.
第２実施例
本例の回転霧化式塗装装置は、霧化頭の円筒体の材料に
、軽量でかつ耐久性に優れた材料として。Second Embodiment In the rotary atomizing coating device of this embodiment, the cylindrical body of the atomizing head is made of a lightweight and highly durable material.
合成樹脂、具体的には、ポリアセタール樹脂、ポリアミ
ド樹脂等の単味の合成樹脂、又は、ガラス。Synthetic resins, specifically simple synthetic resins such as polyacetal resins and polyamide resins, or glass.
カーボン等の繊維を混入したポリプロピレン樹脂ホリエ
ステ〜樹脂、エポキシ樹脂等の繊維強化合成樹脂を用い
たものでおる。その他の点は前例におけるのと同様であ
る。It uses fiber-reinforced synthetic resin such as polypropylene resin, epoxy resin, etc., mixed with fibers such as carbon. Other points are the same as in the previous example.
その他
霧化頭の形状は、第１図と第２図に示すものに限定され
るものではない。Other shapes of the atomizing head are not limited to those shown in FIGS. 1 and 2.
また、霧化頭の先端内周面に設、けた塗料放出溝に代え
て、霧化頭の先端開口縁を鋸歯状に形成してもよい。ま
た％霧化頭の先端開口縁の塗料放出部を円弧状断面に形
成してもよい。Further, instead of the girder paint discharge groove provided on the inner circumferential surface of the tip of the atomizing head, the opening edge of the tip of the atomizing head may be formed in a sawtooth shape. Furthermore, the paint discharge portion at the edge of the opening at the tip of the atomizing head may be formed to have an arcuate cross section.
第１図は本発明の第１実施例の回転霧化式塗装装置の一
部破断側面図であり、第２図は第１因のト」線断面図で
ある。
１：エアターボモー５１回転駆動装置
２：回転軸 ６，８：霧化頭
１０：塗料供給管、塗料供給路FIG. 1 is a partially cutaway side view of a rotary atomizing coating apparatus according to a first embodiment of the present invention, and FIG. 2 is a sectional view taken along the line T-1 of the first cause. 1: Air turbo motor 51 rotation drive device 2: Rotating shaft 6, 8: Atomization head 10: Paint supply pipe, paint supply path
Claims (1)
に塗料供給路を接続し、霧化頭の先端に塗料放出部を形
成した回転霧化式塗装装置において、霧化頭の塗料放出
部を含む部分をセラミック又は合成樹脂で形成し、霧化
頭の塗料放出部から放出される塗粒を霧化頭の前方へ搬
送する空気を噴出する空気噴出孔を設けたことを特徴と
する回転霧化式塗装装置。In a rotary atomizing painting device, an atomizing head is attached to the rotating shaft of the rotary drive device, a paint supply path is connected to the base end of the atomizing head, and a paint discharge part is formed at the tip of the atomizing head. The part containing the paint discharge part of the atomizing head is made of ceramic or synthetic resin, and an air jet hole is provided for blowing out air that conveys the paint particles discharged from the paint discharge part of the atomizing head to the front of the atomizing head. Features a rotating atomization coating device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12947784A JPS618154A (en) | 1984-06-22 | 1984-06-22 | Rotary atomization coating equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12947784A JPS618154A (en) | 1984-06-22 | 1984-06-22 | Rotary atomization coating equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS618154A true JPS618154A (en) | 1986-01-14 |
Family
ID=15010450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12947784A Pending JPS618154A (en) | 1984-06-22 | 1984-06-22 | Rotary atomization coating equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS618154A (en) |
-
1984
- 1984-06-22 JP JP12947784A patent/JPS618154A/en active Pending
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