JP3277064B2 - Electrodeposition coating equipment - Google Patents
Electrodeposition coating equipmentInfo
- Publication number
- JP3277064B2 JP3277064B2 JP00779594A JP779594A JP3277064B2 JP 3277064 B2 JP3277064 B2 JP 3277064B2 JP 00779594 A JP00779594 A JP 00779594A JP 779594 A JP779594 A JP 779594A JP 3277064 B2 JP3277064 B2 JP 3277064B2
- Authority
- JP
- Japan
- Prior art keywords
- electrodeposition
- electrodeposition coating
- electrode member
- electrode
- mesh
- 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 - Fee Related
Links
Landscapes
- Paints Or Removers (AREA)
Description
【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION
【０００１】[0001]
【産業上の利用分野】本発明は、例えばカチオン電着塗
装装置の陽極の電極部材に析出される析出物が被塗物に
付着するのを防止するようにした電着塗装装置に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrodeposition coating apparatus for preventing, for example, deposits deposited on an anode electrode member of a cationic electrodeposition coating apparatus from adhering to an object to be coated.
【０００２】[0002]
【従来の技術】従来、例えばカチオン電着塗装装置とし
て実開昭５８−７２１６５号のような装置が知られてい
る。この装置は、電着槽の中央部に浸漬した被塗物を陰
極にし、電着槽の側面部と底面部に浸漬した電極部材を
陽極にして、両者間に電流を通じることで、塗料粒子を
電気泳動によって被塗物表面に吸引し電着塗装するよう
にしている。2. Description of the Related Art Conventionally, for example, an apparatus as disclosed in Japanese Utility Model Application Laid-Open No. 58-72165 is known as a cationic electrodeposition coating apparatus. This device uses the coating material immersed in the center of the electrodeposition tank as a cathode, the electrode members immersed on the side and bottom of the electrodeposition tank as the anode, and passing an electric current between the two, so that the paint particles Is attracted to the surface of the substrate by electrophoresis to perform electrodeposition coating.
【０００３】[0003]
【発明が解決しようとする課題】しかし、上記技術の場
合は、電着槽に浸漬する陽極の電極部材が裸状態である
ため、電着処理中に電極部材の外周部に塗料液中の金属
イオンが析出し、これが剥離して塗料中を浮遊し被塗物
に付着する等の不具合があった。However, in the case of the above technique, since the electrode member of the anode to be immersed in the electrodeposition tank is in a bare state, the metal in the coating liquid is applied to the outer peripheral portion of the electrode member during the electrodeposition process. There were problems such as the precipitation of ions, the separation of the ions, the floating of the ions in the paint, and the attachment to the object to be coated.
【０００４】[0004]
【課題を解決するための手段】かかる課題を解決するた
め、本発明は電着槽内に浸漬した被塗物を一方側の電極
とし、電着槽内に裸状態で浸漬した電極部材を他方側の
電極として電着塗装するようにした電着塗装装置におい
て、裸状態の電極部材の周囲を、電極部材から放射状に
張り出す複数の支持部材により隙間を持って囲む網部材
を設け、前記電極部材の外表面部に析出する異物が前記
網部材から外部に流出するのを防止するようにした。In order to solve the above-mentioned problems, the present invention relates to a method in which an object to be coated immersed in an electrodeposition tank is used as one electrode and an electrode member immersed in the electrodeposition tank in a bare state is used as the other electrode. In the electrodeposition coating apparatus that performs electrodeposition coating as the side electrode, the periphery of the naked electrode member is radiated from the electrode member.
A mesh member that surrounds with a gap by multiple overhanging support members
Is provided to prevent foreign substances deposited on the outer surface of the electrode member from flowing out of the mesh member to the outside.
【０００５】また、網部材を樹脂性にし、網部材の網目
を５０〜５００μメッシュにした。Further, the mesh member is made of resin, and the mesh of the mesh member is set to a mesh of 50 to 500 μm.
【０００６】[0006]
【作用】裸状態の電極部材の周囲を隙間を持って囲うこ
とで、電極部材の外表面部に析出する析出物が被塗物に
付着するのを防止する。By surrounding the electrode member in a bare state with a gap, a precipitate deposited on the outer surface of the electrode member is prevented from adhering to the object to be coated.
【０００７】[0007]
【実施例】本発明の電着塗装装置の実施例について添付
した図面に基づき説明する。図１は電着塗装装置の全体
図、図２は要部拡大図、図３は図２のＡ−Ａ線断面図で
ある。DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an electrodeposition coating apparatus according to the present invention will be described with reference to the accompanying drawings. 1 is an overall view of an electrodeposition coating apparatus, FIG. 2 is an enlarged view of a main part, and FIG. 3 is a sectional view taken along line AA of FIG.
【０００８】図１に示すように、本発明の電着塗装装置
１は電着塗料液２を貯留する電着槽３と、電着槽３内の
側面部及び底面部に浸漬される複数の電極部材４、…
と、電着塗料液２を循環させる循環機構５と、電着塗料
液２のＰＨ濃度を調整するＰＨ濃度調整機構６を備え、
電着槽３内の中央部に被塗物Ｗを浸漬するようにしてい
る。As shown in FIG. 1, an electrodeposition coating apparatus 1 of the present invention comprises an electrodeposition tank 3 for storing an electrodeposition coating liquid 2 and a plurality of electrodeposition tanks 3 immersed in side and bottom portions of the electrodeposition tank 3. Electrode member 4, ...
A circulation mechanism 5 for circulating the electrodeposition coating liquid 2, and a PH concentration adjusting mechanism 6 for adjusting the PH concentration of the electrodeposition coating liquid 2,
The article to be coated W is immersed in the central part of the electrodeposition tank 3.
【０００９】そして、前記電極部材４、…を陽極にし、
被塗物Ｗを陰極にして通電することで、正に帯電した塗
料粒子を被塗物Ｗ表面に析出させるいわゆるカチオン式
の電着装置を構成している。The electrode members 4,... Are used as anodes,
A so-called cationic electrodeposition apparatus is configured in which a positively charged paint particle is deposited on the surface of the workpiece W by applying a current to the workpiece W as a cathode.
【００１０】前記循環機構５は、電着槽３内の電着塗料
液２を吸引パイプ７から吸引するポンプ８と、吸引した
電着塗料液を圧送パイプ９を通して電着槽３内の電着塗
料液２に噴出させるライザ管１０を備え、電着槽３内の
電着塗料液２を循環させることで電着塗料液２に対流を
起こさせ、顔料等の沈殿を防止して塗料濃度を均一に保
つようにしている。The circulation mechanism 5 includes a pump 8 for sucking the electrodeposition coating liquid 2 in the electrodeposition tank 3 from a suction pipe 7, and an electrodeposition coating in the electrodeposition tank 3 through the pressure feeding pipe 9. The electrodeposition coating liquid 2 is provided with a riser pipe 10 for jetting the coating liquid 2, and circulating the electrodeposition coating liquid 2 in the electrodeposition tank 3, thereby causing convection in the electrodeposition coating liquid 2, preventing precipitation of pigments and the like, and reducing the coating concentration. I try to keep it even.
【００１１】前記ＰＨ濃度調整機構６は、電着槽３内の
側面部に配設された電極部材４の周囲を覆って設けられ
た隔膜１１と、この隔膜１１によって顔料等の含有が遮
断された電着塗料液２ａを取り出して貯留するタンク１
２と、このタンク１２内の電着塗料液２ａのＰＨ濃度を
測定し、電着塗料液２ａのＰＨ濃度を一定に保つよう純
水を供給する純水供給パイプ１３を備え、所定のＰＨ濃
度に調整した電着塗料液２ａをポンプ１４によって電着
槽３内（隔膜１１内）に戻すようにしている。The PH concentration adjusting mechanism 6 has a diaphragm 11 provided so as to cover the periphery of the electrode member 4 disposed on the side surface inside the electrodeposition tank 3, and the diaphragm 11 blocks the content of pigments and the like. Tank 1 for taking out and storing the deposited electrodeposition coating liquid 2a
And a pure water supply pipe 13 for measuring the PH concentration of the electrodeposition coating liquid 2a in the tank 12 and supplying pure water so as to keep the PH concentration of the electrodeposition coating liquid 2a constant. The adjusted electrodeposition coating liquid 2a is returned into the electrodeposition tank 3 (inside the diaphragm 11) by the pump 14.
【００１２】そして、前記隔膜１１はイオンに対して選
択透過性を有するイオン交換膜であり、顔料等の塗料成
分を遮断する。The diaphragm 11 is an ion exchange membrane having a selective permeability to ions, and blocks paint components such as pigments.
【００１３】ところで、底面部の電極部材４の周囲に
は、網部材１５を設けて囲っている。A mesh member 15 is provided around the electrode member 4 on the bottom surface.
【００１４】この網部材１５は、図２及び図３に示すよ
うに、電極部材４から放射状に張り出す複数の支持部材
１６、…の周囲に巻かれて、電極部材４から隙間ｓを持
って一体的に構成されるとともに、両端部の側面板１
７、１７とも一体化されている。As shown in FIGS. 2 and 3, the mesh member 15 is wound around a plurality of support members 16 extending radially from the electrode member 4, with a gap s from the electrode member 4. Side plate 1 at both ends while being integrally formed
7 and 17 are also integrated.
【００１５】つまり、両側面板１７、１７、電極部材
４、複数の支持部材１６、…、網部材１５は一体化され
て取付部材１８に対して複数のボルトによって取着自在
とされ、交換等の際は一体で行なうようにされるととも
に、複数の環状の保持部材１９で電着槽３の底面に位置
決め固定される。That is, the side plates 17, 17, the electrode member 4, the plurality of support members 16,..., The mesh member 15 are integrated and can be freely attached to the mounting member 18 by a plurality of bolts. At the same time, it is performed integrally, and is positioned and fixed to the bottom surface of the electrodeposition tank 3 by a plurality of annular holding members 19.
【００１６】そして、この網部材１５は樹脂性であり、
しかも網目の大きさは５０〜５００メッシュ相当として
おり、電極部材４に析出する析出物の通過を阻止するに
充分な大きさにしている。The net member 15 is made of a resin.
In addition, the size of the mesh is equivalent to 50 to 500 mesh, and is large enough to prevent passage of the precipitates deposited on the electrode member 4.
【００１７】以上のような電着塗装装置１において、被
塗物Ｗを陰極に電極部材４を陽極にして電着塗装を行な
うと、電着塗料液２に直接接触する下面部の電極部材４
の外周部附近には、顔料等に含まれる金属イオンが析出
硬化する。In the electrodeposition coating apparatus 1 as described above, when electrodeposition coating is performed using the object to be coated W as a cathode and the electrode member 4 as an anode, the electrode member 4 on the lower surface portion in direct contact with the electrodeposition coating liquid 2 is obtained.
Metal ions contained in pigments and the like are deposited and hardened in the vicinity of the outer periphery.
【００１８】すなわち、このような金属析出物は例えば
鉛（Ｐｂ）、銅（Ｃｕ）、亜鉛（Ｚｎ）、チタン（Ｔ
ｉ）、珪素（Ｓｉ）アルミ（Ａｌ）、ストロンチューム
（Ｓｒ）等である。That is, such metal precipitates include, for example, lead (Pb), copper (Cu), zinc (Zn), titanium (T
i), silicon (Si), aluminum (Al), strontium (Sr) and the like.
【００１９】そして、従来であればこの電極部材４の外
周部附近に生じた析出物は、循環機構５によって生じる
対流等によって容易に剥離し、電着塗料液２中を浮遊し
て被塗物Ｗの表面に付着していたのであるが、本願の場
合は網部材１５から外部に流出することはない。つま
り、被塗物Ｗに異物が付着するような不具合を無くすこ
とが出来る。In the prior art, the precipitates generated near the outer peripheral portion of the electrode member 4 are easily separated by convection or the like generated by the circulation mechanism 5 and float in the electrodeposition coating liquid 2 to be coated. Although attached to the surface of W, in the case of the present application, it does not flow out from the net member 15 to the outside. That is, it is possible to eliminate a problem that a foreign substance adheres to the article to be coated W.
【００２０】そして、電極部材４自体にある程度の析出
物が析出硬化すると、網部材１５とともに一体的に取り
替える。When a certain amount of precipitate is deposited and hardened on the electrode member 4 itself, the electrode member 4 is replaced integrally with the net member 15.
【００２１】尚、側面部の電極部材４は、電着塗料液２
の顔料等と直接接触しないため、析出硬化の虞れはな
い。Incidentally, the electrode member 4 on the side surface portion is
Because there is no direct contact with the pigment or the like, there is no fear of precipitation hardening.
【００２２】また、底面部の電極部材４を側面部の電極
部材４と同様に隔膜１１で囲ってＰＨ濃度調整機構６に
接続することは、電着塗料液２のＰＨ濃度の関係から好
ましくない。Further, it is not preferable to surround the electrode member 4 on the bottom surface with the pH concentration adjusting mechanism 6 by surrounding the same with the diaphragm member 11 in the same manner as the electrode member 4 on the side surface portion, because of the PH concentration of the electrodeposition coating liquid 2. .
【００２３】[0023]
【発明の効果】以上のように、本発明の電着塗装装置は
裸状態で浸漬した電極部材の周囲を、電極部材から放射
状に張り出す複数の支持部材により隙間を持って囲む網
部材を設けたため、裸状態の電極部材の外面に析出した
析出物が被塗物に付着するような不具合を防止すること
が出来る。このため、塗装品質が向上するという効果を
奏する。As described above, the electrodeposition coating apparatus of the present invention radiates the periphery of the electrode member immersed in the naked state from the electrode member.
Mesh with a gap by a plurality of support members overhanging
Since the member is provided , it is possible to prevent a problem that a precipitate deposited on the outer surface of the bare electrode member adheres to the object to be coated. Therefore, there is an effect that the coating quality is improved.
【図１】本電着塗装装置の全体構成図FIG. 1 is an overall configuration diagram of the present electrodeposition coating apparatus.
【図２】一部を破断した要部拡大図FIG. 2 is an enlarged view of a main part with a part broken away.
【図３】図２のＡ−Ａ線断面図FIG. 3 is a sectional view taken along line AA of FIG. 2;
１ 電着塗装装置 ２ 電着塗料液 ３ 電着槽 ４ 電極部材 １５ 網部材 Ｗ 被塗物 REFERENCE SIGNS LIST 1 electrodeposition coating apparatus 2 electrodeposition coating liquid 3 electrodeposition tank 4 electrode member 15 mesh member W workpiece
Claims (3)
極とし、前記電着槽内に裸状態で浸漬した電極部材を他
方側の電極として電着塗装するようにした電着塗装装置
において、前記裸状態の電極部材の周囲を、電極部材か
ら放射状に張り出す複数の支持部材により隙間を持って
囲む網部材を設け、前記電極部材の外表面部に析出する
異物が前記網部材から外部に流出するのを防止するよう
にしたことを特徴とする電着塗装装置。1. An electrodeposition method wherein an object to be coated immersed in an electrodeposition tank is used as one electrode, and an electrode member immersed in the electrodeposition tank in a bare state is electrodeposited as the other electrode. In the coating apparatus, the periphery of the naked electrode member may be covered with an electrode member.
With a gap by multiple support members that protrude radially from
An electrodeposition coating apparatus , wherein a surrounding mesh member is provided to prevent foreign substances deposited on the outer surface of the electrode member from flowing out of the mesh member to the outside.
する請求項１に記載の電着塗装装置。2. The electrodeposition coating apparatus according to claim 1, wherein said net member is made of resin.
シュにしたことを特徴とする請求項１又は請求項２に記
載の電着塗装装置。3. The electrodeposition coating apparatus according to claim 1, wherein the mesh of the mesh member is a mesh of 50 to 500 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP00779594A JP3277064B2 (en) | 1994-01-27 | 1994-01-27 | Electrodeposition coating equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP00779594A JP3277064B2 (en) | 1994-01-27 | 1994-01-27 | Electrodeposition coating equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07216594A JPH07216594A (en) | 1995-08-15 |
| JP3277064B2 true JP3277064B2 (en) | 2002-04-22 |
Family
ID=11675587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP00779594A Expired - Fee Related JP3277064B2 (en) | 1994-01-27 | 1994-01-27 | Electrodeposition coating equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3277064B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108486637B (en) * | 2018-04-18 | 2020-06-30 | 嘉兴市丽彩佳五金有限公司 | Electrophoretic painting treatment process for metal woven mesh |
-
1994
- 1994-01-27 JP JP00779594A patent/JP3277064B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07216594A (en) | 1995-08-15 |
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