WO2013114672A1 - 静電塗装装置 - Google Patents
静電塗装装置 Download PDFInfo
- Publication number
- WO2013114672A1 WO2013114672A1 PCT/JP2012/074910 JP2012074910W WO2013114672A1 WO 2013114672 A1 WO2013114672 A1 WO 2013114672A1 JP 2012074910 W JP2012074910 W JP 2012074910W WO 2013114672 A1 WO2013114672 A1 WO 2013114672A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- coating
- electrostatic coating
- zone
- blowing
- electrostatic
- Prior art date
Links
Images
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
- B05B5/08—Plant for applying liquids or other fluent materials to objects
- B05B5/082—Plant for applying liquids or other fluent materials to objects characterised by means for supporting, holding or conveying the objects
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
- B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
- B05B13/0221—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work characterised by the means for moving or conveying the objects or other work, e.g. conveyor belts
- B05B13/0235—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work characterised by the means for moving or conveying the objects or other work, e.g. conveyor belts the movement of the objects being a combination of rotation and linear displacement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
- B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
- B05B13/0285—Stands for supporting individual articles to be sprayed, e.g. doors, vehicle body parts
Definitions
- the present invention relates to an electrostatic coating apparatus that applies a conductive primer by an electrostatic sprayer on the upstream side and then performs top coating by an electrostatic sprayer on the downstream side.
- Electrostatic coating is generally performed as a method of painting parts of automobiles and motorcycles.
- a high voltage is applied between the coating gun and the work to ionize the paint particles sprayed from the coating gun, and the paint particles are electrostatically attracted to the work charged on the opposite side. Even if it is the inner surface of the work, the paint particles are embedded and painted.
- Patent Document 1 a method disclosed in Patent Document 1 is known.
- a reciprocator (painting machine) is disposed on one side of a hanger conveyor for suspending and transporting a workpiece, and a clamper provided on the reciprocator grabs the hanger conveyor to synchronize the workpiece with the reciprocator. During this time, the work is electrostatically painted.
- Patent Document 2 describes a content in which a large number of workpieces are attached to a rotating body and the rotating body is rotated while being moved.
- the number of coating guns used for the primer coating and the top coating is often 2 to 4. However, the number of these coating guns is not individually controlled even if more than one.
- electrostatic coating of a conductive primer when a high voltage is suddenly applied, the paint particles jetted earlier may cause the paint particles jetted later to repel (electrostatic repulsion) due to the same charge. .
- the present invention provides an electrostatic coating apparatus in which a plurality of zones are provided along a conveyance line of a workpiece which is an object to be coated, and an electrostatic coating machine is disposed in each zone. At least one is divided into a rough-blow coating zone and a full-blowing coating zone, and in the coarse-blowing coating zone, a voltage applied between the coating gun and the workpiece is the full-blowing coating gun and the workpiece. The voltage set during the period is set to be smaller than the voltage applied.
- the zones include conductive primer application zones and overcoat zones (base coat and top coat).
- the transport line is provided with a hanger that rotates around a vertical axis with the plurality of workpieces suspended, and the coating gun can reciprocate in the transport direction and the vertical direction of the workpieces It is attached to the electrostatic sprayer (Recip locator).
- the electrostatic sprayer Recip locator
- the electrostatic coating machine perform either upward or downward movement in a single painting step, and rotate the hanger a plurality of times. Although it changes with conditions, in the example, 15 times / min gave a good result.
- the coating pattern is ideally such that no gap is formed between the inclination angle and width of the band of paint ejected from each coating gun and the band of the paint ejected from an adjacent coating gun.
- An application pattern can be formed.
- the coating efficiency can be greatly increased as compared with the conventional one, and the waste of the paint is reduced.
- the paint pattern also has no gap, the thickness of the paint applied to the work is also uniform.
- the whole block diagram of the electrostatic coating apparatus which concerns on this invention A perspective view illustrating the details of the conductive primer application zone
- the figure which showed the change of the applied voltage at the time of rough blow coating and this spray coating A drawing showing a coating pattern when the operation of the coating gun is performed only once, in the case where the work is suspended in a cylindrical shape.
- (A) and (b) illustrate the difference between the case where the workpiece is suspended so as to form a cylindrical shape and the case where the workpiece is suspended so as to form a rectangular shape
- the electrostatic coating apparatus is provided with a conductive primer application zone and a top coat zone along the transport line L of the workpiece W to be coated, and the top coat zone is further divided into a base coat zone and a top coat zone. .
- Z1 represents a conductive primer rough blowing zone
- Z2 represents a conductive primer main blowing zone.
- the top coat zone is provided downstream of the main blow zone Z2.
- the electrostatic coating machines 1 and 2 are disposed in each of the zones Z1 and Z2.
- the conductive primer is applied in the electrostatic coating machines 1 and 2, but the structure is the same and one is omitted by reciprocating one electrostatic coating machine along the transfer line. It is also possible.
- the electrostatic coating machine 1 will be described below.
- the electrostatic coating machine 1 reciprocates in the vertical direction and in the direction along the conveyance line (conveyor) L of the work W.
- the arm 4 of the reciprocator 3 reciprocates the application gun 5 for rough blowing and the application gun 6 for main blowing to the work.
- the transport line L of the embodiment two coating guns 5 for coarse blowing and two coating guns 6 for full blowing are provided in the embodiment, the number is arbitrary.
- the work W is attached to the hanger 7.
- the hanger 7 is provided with a plurality of stages of radially extending horizontal arms, and by locking the work W thereon, the whole is formed into a substantially cylindrical shape.
- a sprocket 8 is attached to the shaft of the hanger 7, and the sprocket 8 is rotated by a chain 10 (timing belt) traveling by a motor 9 arranged corresponding to each zone. That is, when the hanger 7 enters each zone, the sprocket 8 and the chain 10 are engaged, and the hanger 7 moves and rotates along the transport line L.
- a chain 10 timing belt
- the rough spray coating and the main spray coating are performed in the conductive primer application zone, but it is also possible to perform the rough spray coating and the main spray coating in the top coat zone.
- a high voltage is applied between the work and the coating gun, but in this embodiment, between the coating gun 5 for rough blowing and the work W Applies a voltage of -30 kv and a voltage of -60 kv between the coating gun 6 for main blowing and the work W.
- the applied voltage is small, so the electrostatic repulsion is also small, and a thin and uneven coating film is formed. Thereafter, by increasing the applied voltage in the main spray coating, the paint particles are firmly attached to the already formed coating film. At this time, a more uniform coating film can be obtained by reversing the rotational direction of the hanger 7 in the rough blow coating and the main blow coating.
- FIG. 4 is a view for explaining an example of painting in the main blowing zone Z2, for example.
- the coating gun 6 is slowly raised or lowered during coating and does not reciprocate up and down.
- the hanger 7 rotates a plurality of times (preferably 10 times or more) during that time.
- the coating gun 6 is moved at a low speed in one direction upward or downward, and the hanger 7 on which the work is attached is rotated a plurality of times during that time.
- the application pattern in this case is shown in the lower part of FIG.
- the coating pattern is assumed on the assumption that a cylindrical screen is set in front of the coating gun 6 instead of the hanger, and the coating gun 6 is a series of two.
- the coating area of the paint discharged from the coating gun has a constant inclination angle Is represented by a band-like region with Then, by controlling the width of the paint discharged from the coating gun, it is possible to obtain a coating pattern in which the overlap with the coating area of the adjacent coating gun is reduced.
- FIG. 5 is an example performed for comparison with FIG. 4.
- the work W is suspended on each side of a rectangular hanger, and the coating gun 6 is 1.5 times up and down during one application. It was made to reciprocate. In this case, there are places where the paint is not applied to the application pattern, and the problem of application unevenness occurs. Therefore, it is preferable for the coating gun 6 to move slowly either upward or downward without reciprocating during one application.
- FIG. 6A the workpiece W is suspended in a shape close to a cylinder
- FIG. 6B the workpiece is suspended at a rectangular side in a plan view.
- the work is suspended so that the whole is rectangular, because the coating is electrostatically coated, paint particles are caught on the back side of the work but the side of the adjacent work is on the side There is a case where the paint does not reach enough.
- the work is suspended in a shape close to a cylinder, the space between the adjacent works is expanded, and the paint is easily supplied to the side and back.
- the electrostatic coating device according to the present invention according to the present invention can be incorporated into an automated motorcycle or automobile paint line and used.
Landscapes
- Electrostatic Spraying Apparatus (AREA)
- Spray Control Apparatus (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
Description
また、導電プライマーを静電塗装する場合、いきなり高電圧を印加すると、先に噴出したイオン化した塗料粒子によって後から噴出した塗料粒子が同じ電荷のために反発(静電反発)される不具合が生じる。
前記ゾーンとしては、導電プライマー塗布ゾーン、上塗りゾーン(ベースコートとトップコート)が挙げられる。
このようにすることで、塗装パターンは各塗布ガンから噴出される塗料の帯の傾斜角度と幅が一定で隣接する塗布ガンから噴出される塗料の帯との間に隙間が形成されない理想的な塗布パターンを形成することができる。
また塗装パターンも隙間がなくなるので、ワークに塗布される塗料の厚みも均一になる。
静電塗装機1は上下方向及びワークWの搬送ライン(コンベア)Lに沿った方向に往復動するレシプロケータ3のアーム4に粗吹き用の塗布ガン5と本吹き用の塗布ガン6をワークの搬送ラインLに沿って離間して取り付けている。実施例では粗吹き用の塗布ガン5および本吹き用の塗布ガン6とも2本づつ設けているが、本数は任意である。
この際、粗吹き塗装と本吹き塗装におけるハンガー7の回転方向を逆転することで、より均一な塗膜が得られる。
したがって、塗布ガン6は1回の塗布の間に往復動せずに上か下の一方にゆっくりと移動するのが好ましい。
これに対し、ワークを円筒に近い形状に吊り下げると、隣接するワーク間が広がり塗料が側面及び裏面に供給されやすくなる。
Claims (4)
- 被塗装物であるワークの搬送ラインに沿って、複数のゾーンを設け、各ゾーンに静電塗装機を配置した静電塗装装置において、前記複数のゾーンの少なくとも1つは粗吹き用の塗布ゾーンと本吹き用の塗布ゾーンに分けられ、前記粗吹き用の塗布ゾーンでは塗布ガンとワークとの間にかかる電圧が前記本吹き用の塗布ガンとワークとの間にかかる電圧よりも小さく設定されていることを特徴とする静電塗装装置。
- 請求項1に記載の静電塗装装置において、前記搬送ラインには複数のワークを吊り下げた状態で垂直軸を中心として回転するハンガーが設けられ、前記塗布ガンはワークの搬送方向及び上下方向に往復動可能なレシプロケータに取り付けられていることを特徴とする静電塗装装置。
- 請求項2に記載の静電塗装装置において、前記ハンガーの回転方向は粗吹きと本吹きで反転することを特徴とする静電塗装装置。
- 請求項2に記載の静電塗装装置において、前記粗吹きまたは本吹き塗装の際に、前記静電塗装機は上昇または下降のいずれか一方の動きを行い、前記ハンガーは複数回回転することを特徴とする静電塗装装置。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IN5823DEN2014 IN2014DN05823A (ja) | 2012-01-31 | 2012-09-27 | |
BR112014018721-5A BR112014018721B1 (pt) | 2012-01-31 | 2012-09-27 | dispositivo de revestimento eletrostático |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012018649A JP5820736B2 (ja) | 2012-01-31 | 2012-01-31 | 静電塗装装置 |
JP2012-018649 | 2012-01-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2013114672A1 true WO2013114672A1 (ja) | 2013-08-08 |
Family
ID=48904740
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2012/074910 WO2013114672A1 (ja) | 2012-01-31 | 2012-09-27 | 静電塗装装置 |
Country Status (4)
Country | Link |
---|---|
JP (1) | JP5820736B2 (ja) |
BR (1) | BR112014018721B1 (ja) |
IN (1) | IN2014DN05823A (ja) |
WO (1) | WO2013114672A1 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
MY195863A (en) * | 2018-04-19 | 2023-02-24 | Honda Motor Co Ltd | Electrostatic Coating Device for Resin Molded Articles and Electrostatic Coating Method for Resin Molded Articles |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06421A (ja) * | 1992-06-16 | 1994-01-11 | Honda Motor Co Ltd | 塗装方法及び装置 |
JP2004033887A (ja) * | 2002-07-02 | 2004-02-05 | Anest Iwata Corp | 塗装ロボットを使用したスピンドル塗装方法及び装置 |
JP2004358337A (ja) * | 2003-06-04 | 2004-12-24 | Aisin Seiki Co Ltd | 粉体塗装方法および粉体塗装装置 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5249678B2 (ja) * | 2008-08-27 | 2013-07-31 | アネスト岩田株式会社 | 静電塗装用高電圧供給制御装置 |
-
2012
- 2012-01-31 JP JP2012018649A patent/JP5820736B2/ja active Active
- 2012-09-27 BR BR112014018721-5A patent/BR112014018721B1/pt active IP Right Grant
- 2012-09-27 WO PCT/JP2012/074910 patent/WO2013114672A1/ja active Application Filing
- 2012-09-27 IN IN5823DEN2014 patent/IN2014DN05823A/en unknown
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06421A (ja) * | 1992-06-16 | 1994-01-11 | Honda Motor Co Ltd | 塗装方法及び装置 |
JP2004033887A (ja) * | 2002-07-02 | 2004-02-05 | Anest Iwata Corp | 塗装ロボットを使用したスピンドル塗装方法及び装置 |
JP2004358337A (ja) * | 2003-06-04 | 2004-12-24 | Aisin Seiki Co Ltd | 粉体塗装方法および粉体塗装装置 |
Also Published As
Publication number | Publication date |
---|---|
BR112014018721B1 (pt) | 2021-06-08 |
BR112014018721A8 (pt) | 2017-07-11 |
BR112014018721A2 (ja) | 2017-06-20 |
JP2013154322A (ja) | 2013-08-15 |
JP5820736B2 (ja) | 2015-11-24 |
IN2014DN05823A (ja) | 2015-05-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN100531930C (zh) | 喷涂方法 | |
US6582766B2 (en) | Two-tone coating method | |
JP2007514532A (ja) | スプレー塗装装置 | |
JPWO2005118156A1 (ja) | 塗装方法 | |
US5662968A (en) | Method of painting building board by spray painting apparatus | |
WO2013114672A1 (ja) | 静電塗装装置 | |
JP4149753B2 (ja) | 塗装ロボットを使用したスピンドル塗装方法 | |
GB2488872A (en) | Guide for use in paint application | |
JP3754632B2 (ja) | ツートーン塗装方法 | |
KR102464151B1 (ko) | 도장 시스템 | |
JP4461922B2 (ja) | スプレー塗装システムおよびマスキング冶具 | |
JPS61234970A (ja) | 自動車ボデイの自動塗装方法 | |
JP4180955B2 (ja) | 塗装方法 | |
JP2002177826A (ja) | 静電粉体塗装装置 | |
JP2697283B2 (ja) | メタリック塗装方法 | |
JP2017077505A (ja) | 粉体塗装方法 | |
JP2006314939A (ja) | 自動塗装方法及び自動塗装装置 | |
JP2015188869A (ja) | 塗装方法および塗装システム | |
JPS61164668A (ja) | 静電塗装装置 | |
KR100754915B1 (ko) | 도장 방법 | |
CN1491755A (zh) | 回转式涂装方法及其装置 | |
CN104368483A (zh) | 喷涂机 | |
JPH02109B2 (ja) | ||
JPH06134352A (ja) | 静電塗装装置 | |
JP2000210602A (ja) | 吹き付け塗装用金網 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 12867281 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: IDP00201404476 Country of ref document: ID |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
REG | Reference to national code |
Ref country code: BR Ref legal event code: B01A Ref document number: 112014018721 Country of ref document: BR |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 12867281 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 112014018721 Country of ref document: BR Kind code of ref document: A2 Effective date: 20140729 |