JPH0643177Y2 - Electrodeposition coating device for inner surface of tank - Google Patents
Electrodeposition coating device for inner surface of tankInfo
- Publication number
- JPH0643177Y2 JPH0643177Y2 JP2643088U JP2643088U JPH0643177Y2 JP H0643177 Y2 JPH0643177 Y2 JP H0643177Y2 JP 2643088 U JP2643088 U JP 2643088U JP 2643088 U JP2643088 U JP 2643088U JP H0643177 Y2 JPH0643177 Y2 JP H0643177Y2
- Authority
- JP
- Japan
- Prior art keywords
- tank
- electrodeposition coating
- electrode
- hollow shaft
- rod
- 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
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- Application Of Or Painting With Fluid Materials (AREA)
Description
【考案の詳細な説明】 〔産業上の利用分野〕 本考案は円筒状タンク内面の電着塗装装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to an electrodeposition coating apparatus for the inner surface of a cylindrical tank.
円筒状タンクであって、第7図縦断面図に示すように、
内部が1室又は隔壁を介して2室,3室等に仕切られ鏡
板,側壁に小径の口金だけが配設されているタンクの内
面を塗装するには、従来、スプレー塗装のほかに実用的
な手段がない。A cylindrical tank, as shown in the vertical sectional view of FIG.
To coat the inner surface of a tank whose interior is partitioned into two or three chambers with a partition wall and only a small-diameter base is provided on the side wall, conventional spray coating has been practically used. There is no suitable means.
こゝで、2は鏡板の中心,円筒部等にそれぞれ突設され
た配管,安全弁,ドレン弁等の接続用の小径ねじ口金で
ある。Here, 2 is a small-diameter screw cap for connecting a pipe, a safety valve, a drain valve, etc., which are respectively provided at the center of the end plate and the cylindrical portion.
しかしながら、スプレー塗装では下記のような問題があ
る。However, spray coating has the following problems.
(1)口金の内径がかなり大きくないと、スプレーノズ
ルの挿入ができない。(1) The spray nozzle cannot be inserted unless the inner diameter of the die is considerably large.
(2)塗装膜の厚さが一様であるか否かを検査する適当
な手段がない。(2) There is no suitable means to inspect whether the coating film has a uniform thickness.
(3)内面全部に一様な厚さでスプレー塗装することが
困難であるから、塗装膜に厚薄のばらつきが生じ、数年
後、塗装膜の薄い部分から局部的に腐食が始まる。(3) Since it is difficult to spray coat the entire inner surface with a uniform thickness, the thickness of the coating film varies, and several years later, corrosion starts locally from the thin portion of the coating film.
そこで、本出願人はこれらの問題点を解決するためにタ
ンクに付設されている口金を利用して水洗ノズルを兼ね
た中空棒状電極をタンク内に挿入し、タンクを回動しな
がら、電着塗装により内周全面を一様な厚さで迅速かつ
確実に塗装する経済的な円筒状タンクの内面塗装方法を
開発したのであるが、この方法を実施するためには、タ
ンクの電極に対する相対的回動を許容する電極取付構造
が必要である。Therefore, in order to solve these problems, the applicant of the present invention inserts a hollow rod-shaped electrode, which doubles as a water washing nozzle, into the tank by using a mouthpiece attached to the tank, and then, while rotating the tank, electrodeposition is performed. We have developed an economical method for coating the inner surface of a cylindrical tank that allows the entire inner circumference to be coated quickly and reliably with a uniform thickness. An electrode mounting structure that allows rotation is required.
本考案はこのような事情に鑑みて提案されたもので、タ
ンクの回動を許容しながら、タンク内に電着塗装電流を
供給し、また電着塗装表面を水洗することのできるタン
ク内面用電着塗装装置を提供することを目的とする。The present invention has been proposed in view of the above circumstances, and is for an inner surface of a tank that can supply the electrodeposition coating current into the tank while allowing the rotation of the tank and wash the electrodeposition coating surface with water. An object is to provide an electrodeposition coating device.
そのために、第1項の考案は、両端がそれぞれ鏡板で閉
塞された円筒状タンクの中心軸線上に上記鏡板の中心に
付設された口金を通して外部から棒状電極を挿入し、上
記タンクの内外を電着塗装液中に浸漬し、上記電極を正
極とし、上記タンクを負極として両者間に直流電圧をか
けることにより上記タンクの内面を電着塗装するタンク
内面用電着塗装装置において、内端部に上記口金にねじ
込まれるねじが刻設され他端が同軸的に適宜長にわたっ
て延びタンクを回動自在に支持する絶縁性中空軸と、上
記中空軸の中心孔を挿通して上記タンク内に延びる先端
部が適宜長にわたって金属肌が露出し、これに続く部分
であって上記電着塗装液に浸漬される部分が絶縁性皮膜
で被覆された棒状電極とを有することを特徴とする。Therefore, in the invention of the first item, a rod-shaped electrode is inserted from the outside through a mouthpiece attached to the center of the end plate on the central axis of a cylindrical tank whose both ends are closed by end plates, and the inside and outside of the tank are electrically charged. In an electrodeposition coating apparatus for tank inner surface, which is immersed in a coating liquid, the above electrode is used as a positive electrode, the above tank is used as a negative electrode, and a DC voltage is applied between the two to apply electrodeposition to the inside surface of the tank. An insulating hollow shaft for engraving a screw to be screwed into the mouthpiece and having the other end coaxially extending over an appropriate length to rotatably support the tank, and a tip extending through the central hole of the hollow shaft into the tank. A metal skin is exposed for an appropriate length, and a portion subsequent to the metal skin, which is to be immersed in the electrodeposition coating solution, has a rod-shaped electrode coated with an insulating film.
また、第2項の考案は、第1項において、その棒状電極
が中空軸で形成され上記タンク内に位置する同棒状電極
の先端部周壁には基端部から中空軸内を通って供給され
る洗浄水が露出される複数のノズル孔が穿設されたこと
を特徴とする。Further, in the invention of the second aspect, in the first aspect, the rod-shaped electrode is formed by a hollow shaft, and the tip end peripheral wall of the rod-shaped electrode located in the tank is supplied from the base end portion through the hollow shaft. It is characterized in that a plurality of nozzle holes for exposing the cleaning water to be exposed are formed.
このような構成により、タンクは電着塗装液で満たさ
れ、電極とタンクとの間に所定の電圧がかけられて電着
塗装が行われる際、タンクはその中心軸線の周りに回動
するので、タンク内の残留空気はタンク内面に対し相対
的に円周方向に移動するから、タンク内面はくまなく電
着塗装液に接触し、残留空気の悪影響を受けることな
く、タンク内面には一様の厚さで塗料膜が形成され、電
着塗装後、電極のノズル孔より水洗水を噴射して塗料内
面を水洗し、均一、平滑かつ強固な内面塗装を行うこと
ができる。With such a configuration, the tank is filled with the electrodeposition coating liquid, and when the electrodeposition coating is performed by applying a predetermined voltage between the electrode and the tank, the tank rotates around its central axis. Since the residual air in the tank moves in the circumferential direction relative to the inner surface of the tank, the inner surface of the tank is in contact with the electrodeposition coating solution all over, and the inner surface of the tank is not affected by the residual air. The coating film is formed with a thickness of 1, and after the electrodeposition coating, washing water is sprayed from the nozzle hole of the electrode to wash the inner surface of the coating, so that uniform, smooth and strong inner coating can be performed.
本考案を1室型エアタンクに適用した一実施例を図面に
ついて説明すると、第1図は電着塗装バス中のタンクを
示す側面図、第2図は第1図のタンクの支持部を示す部
分側面図、第3図は第2図の軸受を示す部分拡大縦断面
図、第4図は第1図のタンクの回動要領を示す斜視図及
び正面図、第5図はタンクの電着塗料の水洗要領を示す
斜視図、第6図は3室型エアタンクの場合の電着塗装要
領及び水洗要領を示す側面図である。An embodiment in which the present invention is applied to a one-chamber type air tank will be described with reference to the drawings. FIG. 1 is a side view showing the tank in an electrodeposition coating bath, and FIG. 2 is a portion showing a supporting portion of the tank shown in FIG. FIG. 5 is a side view, FIG. 3 is a partially enlarged vertical sectional view showing the bearing of FIG. 2, FIG. 4 is a perspective view and a front view showing the pivoting point of the tank of FIG. 1, and FIG. FIG. 6 is a perspective view showing the washing procedure of FIG. 6, and FIG. 6 is a side view showing the electrodeposition coating procedure and the washing procedure in the case of a three-chamber air tank.
まず、第1〜3図において、第7図と同一の符番はそれ
ぞれ同図と同一の部材を示し、1は水平円筒状のエアタ
ンク(以下タンクという)で、その両端の鏡板の中心に
はそれぞれ口金2が中心軸線上に突設されている。First, in FIGS. 1 to 3, the same reference numerals as in FIG. 7 denote the same members as in FIG. 7, and 1 denotes a horizontal cylindrical air tank (hereinafter referred to as a tank). Each of the bases 2 is projectingly provided on the central axis.
3は口金2にそれぞれねじ込まれた絶縁ブッシュで、絶
縁ブッシュ3はそれぞれ全周が絶縁皮膜でカバーされた
金属性ブッシュよりなり、頭部にはそれぞれ同軸的に合
成樹脂よりなる非電導性中空軸4が突設されている。Reference numeral 3 denotes an insulating bush screwed into each of the bases 2. The insulating bush 3 is made of a metal bush whose entire circumference is covered with an insulating film. The head is coaxial with a non-conductive hollow shaft made of synthetic resin. 4 is projected.
6は中空軸4,絶縁ブッシュ3及び口金2の中心孔に挿通
されたステンレスパイプよりなる中空棒状電極(以下電
極という)で、そのタンク内に延びる部分にはステンレ
ス鋼が露出し、この部分に複数のノズル孔7が半径方向
及び斜め軸方向に穿設されているが、この露出部以外の
電着塗装液浸漬部分は絶縁皮膜8で被覆されている。Reference numeral 6 is a hollow rod-shaped electrode (hereinafter referred to as an electrode) made of a stainless pipe inserted through the hollow shaft 4, the insulating bush 3 and the center hole of the base 2, and the stainless steel is exposed at the portion extending into the tank. A plurality of nozzle holes 7 are bored in the radial direction and the diagonal axis direction, and the portion other than the exposed portion where the electrodeposition coating solution is dipped is covered with an insulating film 8.
9,9はインナレースが中空軸4,4にそれぞれ嵌着された一
対のナイロン製軸受で、各軸受9のアウターレースは図
示せざる天井梁に垂設された一対の支持アングル10,10
の下端に固着され、両支持アングル10,10の間隔はタン
クの種々な長さに適応できるように拡縮可能になってい
る。11は中空軸4の一方の軸端に嵌着されたスプロケッ
トで、スプロケット11はチェーン12を介して図示せざる
モーターにより、正逆両方向に回動可能になっている。Reference numerals 9 and 9 are a pair of nylon bearings in which inner races are fitted to the hollow shafts 4 and 4, respectively, and the outer races of the bearings 9 are a pair of support angles 10 and 10 which are vertically installed on a ceiling beam (not shown).
Affixed to the lower end of the tank, the distance between the support angles 10 and 10 is expandable and contractable to accommodate various lengths of the tank. Reference numeral 11 is a sprocket fitted to one shaft end of the hollow shaft 4, and the sprocket 11 can be rotated in both forward and reverse directions by a motor (not shown) via a chain 12.
このような装置において、塗装は、まず、第1図に示す
ように、タンク1をその両端に突設された中空軸4,4を
軸受9を介して水平に支持した状態で、エポキシ樹脂塗
料,溶剤及び水よりなる塗装バス中に浸漬し、タンク内
に塗装液を満たした状態で、電極6を正極とし、タンク
1を負極として、両者間に250〜350Vの直流電圧をか
け、タンク内面の電着塗装を行う。In such an apparatus, as shown in FIG. 1, the coating is carried out by first coating the epoxy resin coating with the tank 1 in a state where the hollow shafts 4, 4 projecting at both ends thereof are horizontally supported via bearings 9. , Immersed in a coating bath consisting of solvent and water, with the tank filled with the coating liquid, the electrode 6 is the positive electrode, the tank 1 is the negative electrode, and a DC voltage of 250 to 350 V is applied between the two, and the inner surface of the tank Perform electrodeposition coating of.
その際、タンクに付設された口金は全部開いたまゝであ
るから、タンク内も電着塗装液で満たされた状態で電着
塗装を行うのであるが、タンク内には若干の空気が残留
するので、この残留空気14がタンク内面と電着塗装液と
の接触を障げることがないようにするために、チェーン
12及びスプロケツト11を介して、第4図に示すように、
タンク1を中心軸線の周りに回動することにより、タン
ク内面が一様に塗装液に浸漬するようにする。タンクの
回動は同一方向でもよいが、本実施例の場合は同図矢印
に示すように、約60°の角度範囲でタンクの正逆方向回
動を反覆的に行うことが実際的で好ましい。At that time, since the caps attached to the tank are all open, the electrodeposition coating is performed while the tank is also filled with the electrodeposition coating liquid, but some air remains in the tank. Therefore, in order to prevent this residual air 14 from interfering with the contact between the tank inner surface and the electrodeposition coating liquid,
Via 12 and sprocket 11, as shown in FIG.
By rotating the tank 1 around the central axis, the inner surface of the tank is uniformly immersed in the coating liquid. Although the rotation of the tank may be in the same direction, in the case of the present embodiment, as shown by the arrow in the figure, it is practically preferable to reciprocally rotate the tank in the forward and reverse directions within an angle range of about 60 °. .
なお、タンク内面を電着塗装するために、タンク全体を
塗装液バスに浸漬するのは、内面塗装と同時に又はこれ
に前後してタンク外面をも外部電極を使用して電着塗装
するのに好都合であるからである。In order to electrodeposit the inner surface of the tank, dip the entire tank in the coating solution bath at the same time as or before or after the inner surface coating, so that the outer surface of the tank is also electrodeposited using the external electrodes. This is because it is convenient.
こゝで、電極6の露出部以外は絶縁皮膜で被覆されると
ゝもに、絶縁ブッシュ3,中空軸4の全表面もすべて絶縁
層で被覆されているので、電極の露出部からのみ塗装液
を通してタンク内面に電流が流れ、電極6とタンク1と
の直接接触による短絡電流が流れることはなく、さら
に、電極のタンク外の部分から外部塗装液を通してタン
ク外面に電流が流れることもない。Here, the parts other than the exposed part of the electrode 6 are covered with an insulating film, and the entire surface of the insulating bush 3 and the hollow shaft 4 is also covered with an insulating layer, so only the exposed part of the electrode is coated. No current flows through the liquid to the inner surface of the tank, and no short-circuit current flows due to direct contact between the electrode 6 and the tank 1. Further, no current flows from the portion of the electrode outside the tank to the outer surface of the tank through the external coating liquid.
また、電極はタンクの大きさ、構造等により、一方の鏡
板の口金又は両方の鏡板の口金に挿入して電着塗装が行
われる。Further, depending on the size and structure of the tank, the electrodes are inserted into the caps of one end plate or the end caps of both end plates for electrodeposition coating.
塗料の電着が終わったならば、タンクを塗装液バスから
引上げたのち、第5図に示すように、電極6の中心孔に
洗浄水を供給すると、洗浄水は電極6に穿設された複数
のノズル孔7から半径方向及び斜め軸方向に噴出し、タ
ンク内周に付着した塗料の内面を一様に水洗いしてその
表面を平滑にする。After the electrodeposition of the paint was completed, the tank was pulled up from the coating solution bath, and as shown in FIG. 5, washing water was supplied to the center hole of the electrode 6, and the washing water was bored in the electrode 6. The inner surface of the paint that has been ejected from the plurality of nozzle holes 7 in the radial direction and the oblique axis direction and has adhered to the inner circumference of the tank is uniformly washed with water to make the surface smooth.
こうして水洗が終わったならば、残留水を除去するため
に、タンクを鉛直に支持し、下端の口金2より残留水を
除去する。When the washing with water is completed in this way, the tank is vertically supported to remove the residual water, and the residual water is removed from the base 2 at the lower end.
なお、上記実施例は、1室型タンクについて述べたが、
第7図に示したような2室型(B),3室型タンク(C)
等でも、その両端寄りの室はその口金を利用して上記実
施例と実質的に同一要領で、塗料電着,水洗及び脱水が
行われ、中間室は、第6図に示すように、側壁に付設さ
れた口金2′を利用して電極6′を挿入したのち、上記
実施例と実質的に同一要領でタンクを回動しながら電着
塗装及び水洗を行うことができる。In addition, although the above embodiment describes the one-chamber type tank,
Two-chamber type (B), three-chamber type tank (C) as shown in FIG.
Etc., the chambers near both ends are subjected to paint electrodeposition, washing with water and dehydration in substantially the same manner as in the above-mentioned embodiment using the caps, and the intermediate chamber is provided with a side wall as shown in FIG. After inserting the electrode 6'using the base 2'attached to the electrode, electrodeposition coating and water washing can be performed while rotating the tank in substantially the same manner as in the above embodiment.
このような構造によれば、下記の効果が奏せられる。 With such a structure, the following effects can be obtained.
(1)電極とタンク内面との間に形成された電界及び電
流分布により塗装液中の塗料はタンク内面に均一の厚さ
で迅速確実に電着される。(1) Due to the electric field and current distribution formed between the electrode and the inner surface of the tank, the paint in the coating liquid is electrodeposited on the inner surface of the tank with a uniform thickness quickly and reliably.
(2)電着塗装中、タンクはその中心軸線の周りに回動
するので、残留空気の存在にもかゝわらず、タンク内面
はくまなく一様に塗装液に曝されるから、むらのない一
様な電着塗装が行われる。(2) During electrodeposition coating, the tank rotates around its central axis, so the inner surface of the tank is uniformly exposed to the coating liquid regardless of the presence of residual air. No uniform electrodeposition coating is performed.
(3)電極はその外周の絶縁皮膜,絶縁ブッシュ及び絶
縁性中空軸に支持され、中空軸は絶縁性軸受により支持
されているので、口金挿通部での電極とタンクとの絶縁
不良による短絡事故の発生はなく、安全に電着塗装が行
われる。(3) The electrode is supported by the insulating coating on the outer periphery, the insulating bush, and the insulating hollow shaft, and the hollow shaft is supported by the insulating bearing, so a short circuit accident due to poor insulation between the electrode and the tank at the base insertion portion. There is no occurrence of this, and the electrodeposition coating is performed safely.
(4)電着塗料は電着後、洗浄水により水洗されるの
で、塗料表面は平滑かつ強固に仕上がる。(4) Since the electrodeposition paint is washed with washing water after electrodeposition, the surface of the paint is finished smoothly and firmly.
(5)電極は小径に作ることができるので、小径口金を
有するタンクでも本考案を適用して内面塗装を行うこと
ができる。(5) Since the electrodes can be made to have a small diameter, the present invention can be applied to the inner surface coating even in a tank having a small diameter die.
要するに、第1項の考案によれば、両端がそれぞれ鏡板
で閉塞された円筒状タンクの中心軸線上に上記鏡板の中
心に付設された口金を通して外部から棒状電極を挿入
し、上記タンクの内外を電着塗装液中に浸漬し、上記電
極を正極とし、上記タンクを負極として両者間に直流電
圧をかけることにより上記タンクの内面を電着塗装する
タンク内面用電着塗装装置において、内端部に上記口金
にねじ込まれるねじが刻設され他端が同軸的に適宜長に
わたって延びタンクを回動自在に支持する絶縁性中空軸
と、上記中空軸の中心孔を挿通して上記タンク内に延び
る先端部が適宜長にわたって金属肌が露出し、これに続
く部分であって上記電着塗装液に浸漬される部分が絶縁
性皮膜で被覆された棒状電極とを有することにより、タ
ンクを回動しながらタンク内に電着塗装電流を供給し、
迅速かつ一様にくまなく塗装することができるタンク内
面用電着塗装装置を得るから、本考案は産業上極めて有
益なものである。In short, according to the first aspect of the invention, the rod-shaped electrode is inserted from the outside through the mouthpiece attached to the center of the end plate on the center axis of the cylindrical tank whose both ends are closed by the end plates, and the inside and outside of the tank are An inner end portion of a tank inner surface electrodeposition coating apparatus for electrodepositing the inner surface of the tank by applying a DC voltage between the electrode by immersing it in an electrodeposition coating liquid and using the electrode as a positive electrode and the tank as a negative electrode. An insulating hollow shaft, which is engraved with a screw that is screwed into the base and has the other end coaxially extending over an appropriate length to rotatably support the tank, and extends through the central hole of the hollow shaft into the tank. By rotating the tank, the tip has an exposed metal skin for an appropriate length, and the portion following this, which is to be immersed in the electrodeposition coating solution, has a rod-shaped electrode coated with an insulating film. While The electrodeposition coating current is supplied into the tank,
INDUSTRIAL APPLICABILITY The present invention is extremely useful in the industry because it provides an electrodeposition coating apparatus for the inner surface of a tank that can be quickly and uniformly coated.
また、第2項の考案によれば、第1項において、その棒
状電極が中空軸で形成され上記タンク内に位置する同棒
状電極の先端部周壁には基端部から中空軸内を通って供
給される洗浄水が噴出される複数のノズル孔が穿設され
たことにより、迅速に電着塗装面を平滑かつ強固に仕上
げるタンク内面用電着塗装装置を得るから、本考案は産
業上極めて有益なものである。According to the second aspect of the invention, in the first aspect, the rod-shaped electrode is formed by a hollow shaft, and the distal end peripheral wall of the rod-shaped electrode located in the tank extends from the base end to the hollow shaft. Since a plurality of nozzle holes through which the supplied cleaning water is ejected are drilled, a tank inner surface electrodeposition coating device that quickly and smoothly finishes the electrodeposition coating surface can be obtained. It is useful.
第1図は本考案を1室型エアタンクに適用した一実施例
の電着塗装バス中のタンクを示す側面図、第2図は第1
図のタンクの支持部を示す部分側面図、第3図は第2図
の軸受を示す部分拡大縦断面図、第4図は第1図のタン
クの回動要領を示す斜視図及び正面図、第5図はタンク
の電着塗料の水洗要領を示す斜視図、第6図は3室型エ
アタンクの場合の電着塗装要領及び水洗要領を示す側面
図である。 第7図は公知の円筒状エアタンクの種々の構造を示す縦
断面図である。 1……エアタンク(タンク)、2,2′……口金、3……
絶縁ブッシュ、4……中空軸、6,6′……中空棒状電極
(電極)、7……ノズル孔、8……絶縁皮膜、9……軸
受、10……支持アングル、11……スプロケット、12……
チェーンFIG. 1 is a side view showing a tank in an electrodeposition coating bath of one embodiment in which the present invention is applied to a one-chamber type air tank, and FIG.
FIG. 3 is a partial side view showing a supporting portion of the tank shown in FIG. 3, FIG. 3 is a partially enlarged vertical sectional view showing a bearing shown in FIG. 2, and FIG. 4 is a perspective view and a front view showing a pivoting point of the tank shown in FIG. FIG. 5 is a perspective view showing the procedure for washing the electrodeposition paint on the tank with water, and FIG. 6 is a side view showing the procedure for electrodeposition coating and the washing procedure for a three-chamber air tank. FIG. 7 is a longitudinal sectional view showing various structures of a known cylindrical air tank. 1 ... Air tank (tank), 2, 2 '... Clasp, 3 ...
Insulation bush, 4 ... Hollow shaft, 6,6 '... Hollow rod electrode (electrode), 7 ... Nozzle hole, 8 ... Insulating film, 9 ... Bearing, 10 ... Support angle, 11 ... Sprocket, 12 ……
chain
Claims (2)
ンクの中心軸線上に上記鏡板の中心に付設された口金を
通して外部から棒状電極を挿入し、上記タンクの内外を
電着塗装液中に浸漬し、上記電極を正極とし、上記タン
クを負極として両者間に直流電圧をかけることにより上
記タンクの内面を電着塗装するタンク内面用電着塗装装
置において、内端部に上記口金にねじ込まれるねじが刻
設され他端が同軸的に適宜長にわたって延びタンクを回
動自在に支持する絶縁性中空軸と、上記中空軸の中心孔
を挿通して上記タンク内に延びる先端部が適宜長にわた
って金属肌が露出し、これに続く部分であって上記電着
塗装液に浸漬される部分が絶縁性皮膜で被覆された棒状
電極とを有することを特徴とするタンク内面用電着塗装
装置。1. A rod-shaped electrode is inserted from the outside through a mouthpiece attached to the center of the end plate on the central axis of a cylindrical tank whose both ends are closed by end plates, and the inside and outside of the tank are immersed in the electrodeposition coating solution. In a tank inner surface electrodeposition coating apparatus for dipping and electrodepositing the inner surface of the tank by applying a DC voltage between the two with the electrode serving as the positive electrode and the tank serving as the negative electrode, the inner end is screwed into the base. An insulative hollow shaft that is screwed and has the other end coaxially extending for an appropriate length to rotatably support the tank, and a tip portion that extends through the center hole of the hollow shaft into the tank for an appropriate length An electrodeposition coating apparatus for an inner surface of a tank, characterized in that a metal skin is exposed and a portion subsequent to the metal skin is immersed in the electrodeposition coating liquid, and a rod-shaped electrode coated with an insulating film.
形成され上記タンク内に位置する同棒状電極の先端部周
壁には基端部から中空軸内を通って供給される洗浄水が
噴出される複数のノズル孔が穿設されたことを特徴とす
るタンク内面用電着塗装装置。2. The washing water supplied from the base end through the hollow shaft to the peripheral wall of the tip end of the rod-like electrode located in the tank according to the first aspect. An electro-deposition coating device for an inner surface of a tank, wherein a plurality of nozzle holes to be ejected are formed.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2643088U JPH0643177Y2 (en) | 1988-02-29 | 1988-02-29 | Electrodeposition coating device for inner surface of tank |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2643088U JPH0643177Y2 (en) | 1988-02-29 | 1988-02-29 | Electrodeposition coating device for inner surface of tank |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH01136175U JPH01136175U (en) | 1989-09-18 |
JPH0643177Y2 true JPH0643177Y2 (en) | 1994-11-09 |
Family
ID=31248044
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2643088U Expired - Lifetime JPH0643177Y2 (en) | 1988-02-29 | 1988-02-29 | Electrodeposition coating device for inner surface of tank |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0643177Y2 (en) |
-
1988
- 1988-02-29 JP JP2643088U patent/JPH0643177Y2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH01136175U (en) | 1989-09-18 |
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