JPH027665Y2

JPH027665Y2 -

Info

Publication number: JPH027665Y2
Application number: JP16334083U
Authority: JP
Priority date: 1983-10-24
Filing date: 1983-10-24
Publication date: 1990-02-23
Also published as: JPS6071380U

Description

【考案の詳細な説明】本考案は、一方の端部が開口されており、他方
の端部が閉塞されている被塗布物の表面に塗膜を
形成するための浸漬塗布装置の塗料槽に関する。[Detailed Description of the Invention] The present invention relates to a paint tank of a dip coating device for forming a coating film on the surface of an object to be coated, which is open at one end and closed at the other end. .

第１図に示されるような被塗布物１を塗料に浸
漬した場合、被塗布物１の内部に空気が封じ込め
られ、この空気が膨張したり、溶剤蒸気の蒸発な
どにより、体積が増加し、被塗布物１下部から泡
を発生し、塗面にむらを生じることがある。これ
を解決する方法として、特開昭58−74170号に開
示されているように、被塗布物内部に封じ込めら
れた空気の一部を抜くような塗布方法がある。こ
の方法は、第２図に示すように、通気管４を通じ
て、被塗布物内部の空気の一部をゴム製の空気室
５に抜く方法である。 When the object 1 to be coated as shown in FIG. 1 is immersed in paint, air is trapped inside the object 1 to be coated, and the volume increases due to expansion of this air, evaporation of solvent vapor, etc. Bubbles may be generated from the bottom of the object 1 to be coated, resulting in uneven coating. As a method for solving this problem, there is a coating method in which a part of the air trapped inside the object to be coated is removed, as disclosed in Japanese Patent Application Laid-open No. 74170/1983. In this method, as shown in FIG. 2, part of the air inside the object to be coated is vented through a ventilation pipe 4 into an air chamber 5 made of rubber.

この通気管は通常は塗料の液面より上部に出て
いるため通気管に塗料が入り込むことはないが、
塗料液面がゆれたり、空気を抜く量の程度によつ
ては、通気管に塗料が入ることもある。このよう
な事故が発生すると、通気管が詰まり、塗布に支
障をきたす。 This vent pipe normally comes out above the liquid level of the paint, so paint will not get into the vent pipe, but
Depending on the level of the paint being shaken or the amount of air removed, paint may enter the ventilation pipe. When such an accident occurs, the ventilation pipe becomes clogged, causing problems in coating.

本考案は、このような問題を解決した浸漬塗布
装置における塗料槽の提供を目的とする。そのた
めに塗料が通気管４に入つた場合でも、その塗料
を容器１０にためることにより通気作業に支障が
ないようにしたものである。第３図に、通気管４
に、塗料を滞留せしめる容器１０を取り付けた塗
料槽２の例を示す。通気管４の下部に容器１０を
取り付けたので、塗料が通気管４に入つた場合で
も、容器１０にたまるので、通気管４を詰まらせ
ることはなくなる。この容器１０は、空気が漏れ
ないように取り付けるのはもちろんであるが、中
にたまつた塗料を取り出すため、取りはずしが可
能である方が良い。 The object of the present invention is to provide a paint tank for a dip coating device that solves these problems. Therefore, even if paint enters the ventilation pipe 4, the paint is stored in the container 10 so that the ventilation work is not hindered. Figure 3 shows the ventilation pipe 4.
2 shows an example of a paint tank 2 equipped with a container 10 for retaining paint. Since the container 10 is attached to the lower part of the ventilation pipe 4, even if paint enters the ventilation pipe 4, it will accumulate in the container 10 and will not clog the ventilation pipe 4. The container 10 should of course be installed to prevent air from leaking, but it is better to be able to remove it in order to take out the paint that has accumulated inside.

容器１０と通気管４の形状については、第４図
に示すように、各種の態様が考えられる。また、
空気の一部を抜く方法はゴム製の空気室を用いる
ほか、圧力センサーと電磁弁を用いる方法、ピン
ホールを用いて空気を除々に逃がす方法、通気管
の先を水の中につけ一定圧力以上の空気を逃がす
方法等が挙げられる。 As for the shapes of the container 10 and the ventilation pipe 4, various forms are possible, as shown in FIG. Also,
In addition to using a rubber air chamber, there are other ways to let out some of the air, as well as methods that use a pressure sensor and solenoid valve, methods that use pinholes to gradually release the air, and methods that include placing the tip of a ventilation pipe in water and increasing the pressure above a certain level. Examples include methods to release air.

本考案のように、通気管４の下部に塗料を滞留
せしめる容器１０を取り付けることにより、通気
管４に塗料が入つても通気管４がすぐに詰まるこ
とはなく、継続的に塗布を行うことができるよう
になつた。また、通気管４に塗料が入つても塗料
が容器１０にたまるので掃除が容易にできるよう
になつた。 As in the present invention, by attaching the container 10 for retaining the paint to the lower part of the ventilation pipe 4, even if the paint enters the ventilation pipe 4, the ventilation pipe 4 will not be immediately clogged, and the application can be continued. Now I can do it. Furthermore, even if paint enters the vent pipe 4, the paint accumulates in the container 10, making cleaning easier.

本考案は一方の端部が開口されており、他方の
端部が閉塞されている被塗布物１の浸漬塗布に対
して広く適用できるが、特に高精度な塗膜精度を
要求されるような電子写真感光体の塗布工程には
有効に適用される。 The present invention can be widely applied to dip coating of objects 1 that are open at one end and closed at the other end, but are particularly applicable to dip coating applications that require high coating film accuracy. It is effectively applied to the coating process of electrophotographic photoreceptors.

[Brief explanation of drawings]

第１図は本考案が対象とする被塗布物の断面図
の例である。第２図は従来の塗布装置および塗料
槽を示す。第３図は本考案による塗料槽を示し、
第４図は塗料をためる容器の他の形状(1)，(2)を示
す。符号は１……被塗布物、２……塗料槽、３……
塗料、４……通気管、５……空気室、６……支持
部材、７………スクリユーねじ、８……モータ
ー、９……ふた、１０……容器、を示す。 FIG. 1 is an example of a cross-sectional view of an object to be coated to which the present invention is applied. FIG. 2 shows a conventional coating device and paint tank. Figure 3 shows a paint tank according to the present invention.
Figure 4 shows other shapes (1) and (2) of containers for storing paint. The codes are 1...Object to be coated, 2...Paint tank, 3...
Paint, 4...Vent pipe, 5...Air chamber, 6...Support member, 7...Screw screw, 8...Motor, 9...Lid, 10...Container.

Claims

[Scope of utility model registration request]

The object 1 to be coated, which has one end open and the other end closed, is immersed in the paint 3 placed in the paint tank 2 with the one end facing downward, and then pulled up. By this, in the paint tank 2 of the coating device that forms a coating film on the surface of the object to be coated,
A paint tank in a dip coating apparatus, which has a ventilation pipe 4 for air vent extending from the bottom of the paint tank 2 above the surface of the paint 3, and a container 10 for retaining the paint 3 at the bottom of the ventilation pipe 4. .