JPH0297699A - Electrodeposition equipment - Google Patents
Electrodeposition equipmentInfo
- Publication number
- JPH0297699A JPH0297699A JP24965188A JP24965188A JPH0297699A JP H0297699 A JPH0297699 A JP H0297699A JP 24965188 A JP24965188 A JP 24965188A JP 24965188 A JP24965188 A JP 24965188A JP H0297699 A JPH0297699 A JP H0297699A
- Authority
- JP
- Japan
- Prior art keywords
- electrodeposition
- bottom electrode
- electrode
- paint
- tank
- 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.)
- Granted
Links
- 238000004070 electrodeposition Methods 0.000 title claims abstract description 107
- 239000003973 paint Substances 0.000 claims description 42
- 239000011248 coating agent Substances 0.000 abstract description 19
- 238000000576 coating method Methods 0.000 abstract description 19
- 239000000463 material Substances 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 125000002091 cationic group Chemical group 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 125000000129 anionic group Chemical group 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000003014 ion exchange membrane Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000000108 ultra-filtration Methods 0.000 description 1
Landscapes
- Coating Apparatus (AREA)
- Electroplating Methods And Accessories (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は電着装置に・関する。さらに詳しくは、電着槽
内の電着塗料中を移動せしめられる被塗装物と、該電着
塗料中に設けられた電極とのあいだに電圧を印加して電
着塗装を行なう電着装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an electrodeposition apparatus. More specifically, it relates to an electrodeposition device that performs electrodeposition coating by applying a voltage between an object to be coated that is moved through an electrodeposition paint in an electrodeposition tank and an electrode provided in the electrodeposition paint. .
［従来の技術〕
電着塗装は、たとえば自動車ボデーの塗装などに広く適
用されている（たとえば特開昭６１−１６３２９７号公
報参照）。前記電着塗装を行なう電着装置としては、た
とえば第３図に示されるような装置がある。第３図にお
いて、電着槽（５１）には電着塗料（５２）が収容され
、電着塗料（５２）中には塗料の付きまわりを向上させ
るために底部電極（床裏電極ともいう） （６１）と上
部電極（ルーフ電極ともいう） （５４）とが互いに対
向するように設けられている。電着槽（５Ｉ）の上方に
はコンベヤ（５５）が配置され、コンベヤ（５５）には
山状の隆起部（５Ｂ）が形成されている。コンベヤ（５
５）は電着塗料（５２）中を移動せしめられる被塗装物
（５７）を支持するものでありＪ前記隆起部（５Ｂ）は
支持された被塗装物（５７）を強制的に傾斜せしめるこ
とによって被塗装物（５７）内に存在しうる空気などを
抜くために設けられている。[Prior Art] Electrodeposition coating is widely applied, for example, to the coating of automobile bodies (see, for example, Japanese Patent Laid-Open No. 163297/1983). As an electrodeposition apparatus for performing the electrodeposition coating, there is an apparatus as shown in FIG. 3, for example. In FIG. 3, an electrodeposition paint (52) is stored in an electrodeposition tank (51), and a bottom electrode (also referred to as a floor electrode) is installed in the electrodeposition paint (52) to improve coating coverage. (61) and an upper electrode (also referred to as a roof electrode) (54) are provided to face each other. A conveyor (55) is arranged above the electrodeposition tank (5I), and a mountain-shaped raised portion (5B) is formed on the conveyor (55). Conveyor (5
5) is for supporting the object to be painted (57) that is moved through the electrodeposition paint (52), and the raised portion (5B) is forcibly tilting the object to be painted (57) that is supported. It is provided to remove air, etc. that may exist inside the object to be coated (57).
かかる装置による電着塗装は、被塗装物（５７）と、底
部電極（５３）および上部電極（５４）とのあいだに電
圧が印加された状態で、被塗装物（５７）が電着塗料（
５２）内を移動せしめられることによって行なわれる。Electrodeposition coating using such a device is carried out when a voltage is applied between the object to be coated (57), the bottom electrode (53), and the top electrode (54), and the object to be coated (57) is exposed to the electrodeposition paint (
52) is carried out by being moved within.
なお、電着塗料（５２）は、図示されていない循環ポン
プ、限外ｒ濾過装置などを通して循環され、一定な塗装
条件を維持するために塗料の補給やイオン濃度の調整な
どが行なわれる。The electrodeposition paint (52) is circulated through a circulation pump, an ultrafiltration device, etc. (not shown), and replenishment of the paint and adjustment of ion concentration are performed to maintain constant coating conditions.
第３図に示される電着装置においては、底部電極（５３
）と上部電極（５４）とが互いに対向するように配置さ
れているので、電着塗料（５２）の深さとしては、電着
槽（５１）の底板から底部電極（５３）上面までの距離
と、底部電極（５３）上面と被塗装物（５７）下面との
あいだの所要間隔と、被塗装物（５７）の高さと、被塗
装物（５７）上面と上部電極（５４）下面との所要間隔
と、電着塗料（５２）液面から上部電極（５４）下面ま
での距離とを合計した深さが最小限必要になる。したが
って、このような従来の装置においては、前記条件を満
足するような電着塗料（５２）の深さが選択される。In the electrodeposition apparatus shown in FIG.
) and the upper electrode (54) are arranged to face each other, the depth of the electrodeposition paint (52) is determined by the distance from the bottom plate of the electrodeposition tank (51) to the top surface of the bottom electrode (53). , the required distance between the top surface of the bottom electrode (53) and the bottom surface of the object to be painted (57), the height of the object to be painted (57), and the distance between the top surface of the object to be painted (57) and the bottom surface of the top electrode (54). The minimum required depth is the sum of the required interval and the distance from the liquid level of the electrodeposition paint (52) to the lower surface of the upper electrode (54). Therefore, in such a conventional device, the depth of the electrodeposition paint (52) is selected so as to satisfy the above conditions.
そのため、電着ｔ！ （５１）の深さが深く、その容積
が大きくなるため、設備コストが高いという問題点や、
電着塗料（５２）の液量が多いため、ターンオーバーの
向上による塗装品質の向上に限界があるという問題点や
、循環ポンプの容量が大きくなって、設備コストのみな
らず運転コストも高くなるという問題点などがある。Therefore, electrodeposition T! (51) is deep and its volume is large, so there are problems such as high equipment costs,
Since the amount of electrocoating paint (52) is large, there is a problem that there is a limit to the improvement of coating quality by improving turnover, and the capacity of the circulation pump becomes large, which increases not only the equipment cost but also the operating cost. There are some problems.
本発明は、前記従来の電着装置における問題点に鑑みて
なされたものであり、底部電極と上部電極とを有する構
成でありながら、電着槽の長さや幅を増大させることな
く電着塗料の深さを減少させることを可能にし、それに
よって電着槽容量や電着塗料の液量および循環ポンプの
容量が減少し、設備コストおよび運転コストの削減なら
びに塗装品質の向上が一度に達成される電着装置を提供
することを目的とする。The present invention has been made in view of the problems with the conventional electrodeposition apparatus, and although it has a bottom electrode and an upper electrode, it is possible to use electrodeposition paint without increasing the length or width of the electrodeposition tank. This makes it possible to reduce the depth of the electrocoat tank, thereby reducing the volume of the electrocoat tank, the volume of electrocoat liquid, and the capacity of the circulation pump, thereby simultaneously reducing equipment and operating costs and improving coating quality. The purpose of the present invention is to provide an electrodeposition device that can be used.
本発明は電着塗料を収容してい・る電着槽と、電着槽内
の電着塗料中に設けられた底部電極および上部電極と、
電着槽の上方に配置され、被塗装物を支持し該電着塗料
中を移動せしめるコンベヤとからなり、前記底部電極と
上部電極とが互いに対向しないようにずらされて配置さ
れ、前記コンベヤの底部電極と対向する位置に水平な頂
上部分を有する隆起部が形成されてなる電着装置に関す
る。The present invention includes an electrodeposition tank containing an electrodeposition paint, a bottom electrode and an upper electrode provided in the electrodeposition paint in the electrodeposition tank,
A conveyor is disposed above the electrodeposition tank to support the object to be coated and move it through the electrodeposition paint, and the bottom electrode and the top electrode are arranged offset so as not to face each other. The present invention relates to an electrodeposition device in which a raised portion having a horizontal top portion is formed at a position facing a bottom electrode.
本発明の電着装置は、底部電極と上部電極とが互いに対
向しないようにずらされて配置されているので、電着塗
料の深さは、電着槽の底部から底部電極上面までの距離
と、底部電極上面と被塗装物下面とのあいだの所要間隔
と、被塗装物の高さと、被塗装物上面から電着塗料液面
までの所要距離との合計深さ、または、電着槽の底板か
ら被塗装物下面までの所要距離と、被塗装物高さと、被
塗装物上面と上部電極下面とのあいだの所要距離と、電
着塗料液面から上部電極下面までの距離との合計深さの
いずれか大きい方に基づいて決定することができ、前記
従来の電着装置における電着塗料深さよりも減少させる
ことができる。In the electrodeposition device of the present invention, the bottom electrode and the top electrode are staggered so that they do not face each other, so the depth of the electrodeposition paint is determined by the distance from the bottom of the electrodeposition bath to the top surface of the bottom electrode. , the total depth of the required distance between the top surface of the bottom electrode and the bottom surface of the object to be coated, the height of the object to be coated, and the required distance from the top surface of the object to be coated to the electrocoat liquid level, or the depth of the electrodeposition tank. The total depth of the required distance from the bottom plate to the bottom surface of the object to be coated, the height of the object to be coated, the required distance between the top surface of the object to be coated and the bottom surface of the upper electrode, and the distance from the electrodeposition paint liquid level to the bottom surface of the top electrode. The depth of the electrodeposited paint can be determined based on whichever is greater, and the depth of the electrodeposited paint can be reduced from the depth of the electrodeposited paint in the conventional electrodeposition apparatus.
また、コンベヤの底部電極と対向する位置に水平な頂上
部分を有する隆起部が形成されているため、底部電極の
上方を通過するときの被塗装物の支持高さが上部電極の
下方を通過するときよりも高くなり前述のごと〈従来の
電着槽よりも浅い電着槽の採用を可能にするばかりでな
く、被塗装物が頂上部分の両側に形成される傾斜部に支
持されているときにも有効に電着が行なわれるため底部
電極からの電着における有効な工程長が底部電極の長さ
に比して長くなり、電着槽の長さや幅を大きくすること
なく、前述のごとき電極配置で所定の電着工程を達成す
ることができる。In addition, since a raised portion with a horizontal top portion is formed at a position facing the bottom electrode of the conveyor, the support height of the object to be coated when passing above the bottom electrode is lower than the top electrode. As mentioned above, this not only makes it possible to use a shallower electrodeposition tank than the conventional electrodeposition tank, but also allows the object to be coated to be supported on the slopes formed on both sides of the top part. Since electrodeposition is carried out effectively even on the bottom electrode, the effective process length for electrodeposition from the bottom electrode is longer than the length of the bottom electrode, and the above-mentioned process can be performed without increasing the length or width of the electrodeposition bath. A given electrodeposition process can be achieved with the electrode arrangement.
つぎに、本発明の電着装置を図面に基づいて説明する。 Next, the electrodeposition apparatus of the present invention will be explained based on the drawings.
第１図は本発明の電着装置の一例を示す概略説明図、第
２図は本発明の電着装置の一実施例を示す断面図である
。FIG. 1 is a schematic explanatory diagram showing an example of the electrodeposition apparatus of the present invention, and FIG. 2 is a sectional view showing one embodiment of the electrodeposition apparatus of the present invention.
第１図において、電着槽（１）には電着塗料（２が収容
され、電着塗料（２）中には塗料の付きまわりを向上さ
せるために底部電極（３）と上部電極（４）とが設けら
れている。前記底部電極（３）と上部電極（４）とは互
いに対向しないように電着槽（１）の長さ方向にずらさ
れて配置されている。電着槽（１）の上方には自動車ボ
デーなどの被塗装物（７）を支持するコンベヤ（５）が
配置されており、前記コンベヤ（５）の底部電極（３）
と対向する位置には、水平な頂上部分（８）を有する隆
起部（６）が形成されている。In Fig. 1, an electrodeposition paint (2) is stored in an electrodeposition tank (1), and a bottom electrode (3) and an upper electrode (4) are contained in the electrodeposition paint (2) to improve coating coverage. ).The bottom electrode (3) and the top electrode (4) are arranged so as to be shifted in the length direction of the electrodeposition tank (1) so as not to face each other.The electrodeposition tank ( A conveyor (5) that supports an object to be painted (7) such as an automobile body is arranged above 1), and a bottom electrode (3) of the conveyor (5)
A raised portion (6) having a horizontal top portion (8) is formed at a position facing the.
上記電着塗料（′２Ｊとしてはカチオン型の電着塗料で
あってもアニオン型の電着塗料であってもよく、それら
をとくに限定なく用いることができる。The above-mentioned electrodeposition paint ('2J) may be a cationic electrodeposition paint or an anionic electrodeposition paint, and they can be used without particular limitation.
また、前記電着槽（１）や電極（３）、（４）の材料に
もとくに限定はなく、従来より電着装置に採用されてい
る材料を用いることができる。Furthermore, there are no particular limitations on the materials for the electrodeposition tank (1) and the electrodes (3) and (4), and materials conventionally employed in electrodeposition apparatuses can be used.
かかる構成を採用することにより、被塗装物（力の支持
高さは上部電極（４）の下方では底部電極（３）の上方
よりも低くなり、従来の電着装置に比べ上部電極（４）
の設置高さが低くなり、電着塗料（２）の液面が低くな
っている。また、隆起部（６）が水平な頂上部分（８）
とその両側の傾斜部分（９）、（至）とからなっており
、コンベヤが底部電極（３）と対向する頂上部分（８）
を移動ししているときのみならず、その両側の傾斜部分
を移動しているときも、そこから支持されている被塗装
物（７）には底部電極（３）によって有効に電着塗装が
施されるので、底部電極（３）の長さに比して有効な工
程長が長くなり、電着槽（１）の長さをきわめて効率的
に利用しつる構造となっている。By adopting such a configuration, the support height of the force applied to the object to be coated is lower below the upper electrode (4) than above the bottom electrode (3), and compared to the conventional electrodeposition apparatus,
The installation height of the electrodeposition paint (2) has become lower, and the liquid level of the electrodeposition paint (2) has become lower. In addition, the top portion (8) where the raised portion (6) is horizontal
and inclined parts (9) and (to) on both sides thereof, and the top part (8) where the conveyor faces the bottom electrode (3).
The bottom electrode (3) effectively applies electrodeposition coating to the object to be coated (7) supported from it, not only when moving it, but also when moving on the slopes on both sides. As a result, the effective process length is longer than the length of the bottom electrode (3), and the length of the electrodeposition bath (1) is utilized extremely efficiently, resulting in a hanging structure.
第２図は、自動車ボデーの電着塗装に適用された本発明
の電着装置の一例を示している。FIG. 2 shows an example of an electrodeposition apparatus of the present invention applied to electrodeposition coating of an automobile body.
電着塗料（２）が入れられた電着槽（１）の上方にはコ
ンベヤ（５）が配置され、被塗装物（７）である自動車
ボデーはコンベヤ（５）から支持されて図中左から右に
向かって移動している。電着塗料（２）中には、たとえ
ばイオン交換膜でステンレス製電極を囲んだ円筒型隔膜
付き電極からなる底部電極（３）、上部電極（４）、側
部電極０′Ｏおよび＋１２）が配置されている。コンベ
ヤ（５）の底部電極（３）と対向する位置には、水平な
頂上部分（８）とその両側の傾斜部分（９）および（財
）とからなる隆起部（６）が形成されている。A conveyor (5) is arranged above the electrodeposition tank (1) containing the electrodeposition paint (2), and the object to be painted (7), an automobile body, is supported from the conveyor (5) and moved to the left in the figure. is moving towards the right. In the electrodeposition paint (2), there are, for example, a bottom electrode (3) consisting of a cylindrical diaphragm electrode with an ion-exchange membrane surrounding a stainless steel electrode, an upper electrode (4), and side electrodes 0'O and +12). It is located. A raised portion (6) consisting of a horizontal top portion (8) and inclined portions (9) on both sides thereof is formed at a position facing the bottom electrode (3) of the conveyor (5). .
電着塗料（２）の液面高さ（ωは約２２００ ｍｍであ
り、その中を高さ中）が約１２００ ｍｍの自動車ボデ
ーが被塗装物（７）として移動せめられている。上部電
極（４）の下方における被塗装物（刀の下面と電着槽（
１）の底板との距離（Ｃ）は約５００ＩＩＩＩｌである
。底部電極（３）の上方におけるコンベヤ（５）の隆起
部（６）の高さ曲は約３００ ｍｍであり、したがって
被塗装物（′７）は前記支持高さよりも約３００ ｍ＋
ｓ高い支持高さで支持される。隆起部（６）の傾斜部分
（９）、頂上部分（８）および傾斜部分００）の水平距
離（ｅ）、（ｆ＞および（９）はいずれも約２０００
ｍｍであり、電着槽（１）の長さ方向の寸法山）、山お
よび＋ｊ＞はそれぞれ約７５５０ｍｍ、約２０３５０
ａｍおよび４０００關である。An automobile body having an electrocoating paint (2) whose liquid level height (ω is about 2200 mm, the middle height) is about 1200 mm is being moved as an object to be painted (7). The object to be coated below the upper electrode (4) (the lower surface of the sword and the electrodeposition tank (
The distance (C) from the bottom plate of 1) is approximately 500IIIl. The height curve of the ridge (6) of the conveyor (5) above the bottom electrode (3) is approximately 300 mm, so that the object to be coated ('7) is approximately 300 m+ above said support height.
s Supported at a high support height. The horizontal distances (e), (f> and (9) of the sloped portion (9), top portion (8) and sloped portion 00) of the raised portion (6) are all approximately 2000
mm, and the lengthwise dimensions of the electrodeposition tank (1), ridges and +j> are approximately 7550 mm and approximately 20350 mm, respectively.
am and 4000 meters.
かかる電着装置において、電着塗料（２）としてカチオ
ン電着塗料Ｅｌ） ９１３００ライトグレー（関西ペイ
ント■製）を用い、被塗装物（７）たる自動車ボデーの
移動速度を２．０４２〜５．８７（ｍ ／分とし、電極
と自動車ボデーとのあいだに２８０〜３２０ｖの電圧を
印加し、通常の方法で一定な塗装条件を維持することに
より、自動車ボデーの良好な電着塗装を行なうことがで
きた。In this electrodeposition apparatus, cationic electrodeposition paint El) 91300 Light Gray (manufactured by Kansai Paint ■) is used as the electrodeposition paint (2), and the moving speed of the automobile body, which is the object to be coated (7), is set at a speed of 2.042-5. 87 (m/min), applying a voltage of 280 to 320 V between the electrode and the car body, and maintaining constant coating conditions in the usual way, it is possible to perform good electrodeposition coating on the car body. did it.
第２図に示された実施例のばあには、従来の底部電極と
上部電極とを対向させ配置した装置に比べて、電着槽の
長さや幅の寸法を変えずに電着塗料の液面を約３００
ａｒｍ低くできる。したがってそれに伴なって電着槽の
深さを小さくでき、また、電着塗料の液量も減少しうる
。さらに電着塗料の循環ポンプの容量も従来の配置によ
る装置に比べて約ｌＯ％小さくできる。In the case of the embodiment shown in FIG. 2, compared to the conventional device in which the bottom electrode and the top electrode are arranged facing each other, the electrodeposition paint can be applied without changing the length and width dimensions of the electrodeposition tank. The liquid level is about 300
The arm can be lowered. Accordingly, the depth of the electrodeposition tank can be reduced accordingly, and the amount of electrodeposition paint can also be reduced. Furthermore, the capacity of the electrocoating paint circulation pump can be reduced by about 10% compared to a device with a conventional arrangement.
本発明の電着装置は、底部電極と上部電極とを有し付き
まわりを向上せしめる構成を採用しながら、電着槽の長
さや幅を増大させることなく電着塗料の深さを減少させ
ることを可能にし、それによる電着槽容量の減少によっ
て設備コストが削減され、ターンオーバーの向上によっ
て塗装品質が向上せしめられ、循環ポンプ容量の減少に
よって運転が削減されるという効果を奏する。The electrodeposition apparatus of the present invention has a bottom electrode and an upper electrode and has a configuration that improves coverage, while reducing the depth of the electrodeposition paint without increasing the length or width of the electrodeposition tank. This reduces equipment costs by reducing the capacity of the electrodeposition tank, improves coating quality by improving turnover, and reduces operation by reducing the circulation pump capacity.
第１図は本発明の電着装置の一例を示す概略説明図、第
２図は本発明の電着装置の一実施例を示す断面図、第３
図は従来の電着装置の一例を示す概略図である。
（図面の主要符号）
（１）：電着槽
（２）：電着塗料
（３）：底部電極
（４）二上部電極
（５）：コンベヤ
（６）：隆起部
（８）二頂上部分FIG. 1 is a schematic explanatory diagram showing an example of the electrodeposition apparatus of the present invention, FIG. 2 is a sectional view showing an embodiment of the electrodeposition apparatus of the present invention, and FIG.
The figure is a schematic diagram showing an example of a conventional electrodeposition apparatus. (Main symbols in the drawing) (1): Electrodeposition bath (2): Electrodeposition paint (3): Bottom electrode (4) Two upper electrodes (5): Conveyor (6): Raised portion (8) Two top portions
Claims (1)
塗料中に設けられた底部電極および上部電極と、電着槽
の上方に配置され、被塗装物を支持し該電着塗料中を移
動せしめるコンベヤとからなり、前記底部電極と上部電
極とが互いに対向しないようにずらされて配置され、前
記コンベヤの底部電極と対向する位置に水平な頂上部分
を有する隆起部が形成されてなる電着装置。1 An electrodeposition tank containing an electrodeposition paint; a bottom electrode and an upper electrode provided in the electrodeposition paint in the electrodeposition tank; a conveyor that moves through the electrodeposition paint, the bottom electrode and the top electrode are arranged so as to be offset so that they do not face each other, and a raised part having a horizontal top portion is located at a position facing the bottom electrode of the conveyor. Electrodeposition device formed by forming.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24965188A JPH0297699A (en) | 1988-10-03 | 1988-10-03 | Electrodeposition equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24965188A JPH0297699A (en) | 1988-10-03 | 1988-10-03 | Electrodeposition equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0297699A true JPH0297699A (en) | 1990-04-10 |
| JPH0433873B2 JPH0433873B2 (en) | 1992-06-04 |
Family
ID=17196192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24965188A Granted JPH0297699A (en) | 1988-10-03 | 1988-10-03 | Electrodeposition equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0297699A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007309809A (en) * | 2006-05-19 | 2007-11-29 | Nec Saitama Ltd | Cellular phone terminal and its control method |
-
1988
- 1988-10-03 JP JP24965188A patent/JPH0297699A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007309809A (en) * | 2006-05-19 | 2007-11-29 | Nec Saitama Ltd | Cellular phone terminal and its control method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0433873B2 (en) | 1992-06-04 |
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