JPS59123555A - Coating device - Google Patents
Coating deviceInfo
- Publication number
- JPS59123555A JPS59123555A JP23119282A JP23119282A JPS59123555A JP S59123555 A JPS59123555 A JP S59123555A JP 23119282 A JP23119282 A JP 23119282A JP 23119282 A JP23119282 A JP 23119282A JP S59123555 A JPS59123555 A JP S59123555A
- Authority
- JP
- Japan
- Prior art keywords
- coating
- liquid
- coating liquid
- tank
- coated
- 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.)
- Pending
Links
Landscapes
- Coating Apparatus (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、被塗物体の浸漬および引き出し時・における
塗布槽の液位の上昇および下降を小さい範囲に調節して
被塗物体表面に乾燥塗膜厚みを一定ない、該物体に塗液
を塗布および乾燥して塗ｊ漠を形成させる場合、浸漬時
Ｆｉ、液位が高くなり、引上けに伴なって大きく液位が
低下し、液位の低下した分だけ塗布槽の空間部（蒸気相
高さ）が増大する。このような場合塗液に有機溶媒を用
いたとき次の３つの問題点がある。DETAILED DESCRIPTION OF THE INVENTION The present invention provides a method for controlling the rise and fall of the liquid level in a coating tank within a small range when the object to be coated is immersed and pulled out, so that the thickness of the dry coating film on the surface of the object to be coated is constant. When a coating liquid is applied to the object and dried to form a coating, the liquid level becomes high during immersion, and as it is pulled up, the liquid level decreases significantly, and the liquid level decreases by the amount that the liquid level has decreased. The space (vapor phase height) in the coating tank increases. In such cases, there are the following three problems when an organic solvent is used in the coating liquid.
１）上下の膜厚変化
有機溶媒とくに比較的蒸発速朋が大きい溶媒の場合は、
被鉱物体の引出し初期の塗布槽空間部が比較的小さいと
き層液から引き出された面がすぐに蒸発か加速される大
気中（塗布槽の外）に出てしまうため、塗液がりして膜
厚低下が起る以前に濃縮同化乾燥されてしまうので、上
部程塗膜が厚くなる。1) Change in upper and lower film thickness For organic solvents, especially those with relatively high evaporation rates,
When the space in the coating tank is relatively small at the initial stage of drawing out the mineral body, the surface pulled out from the layer liquid will immediately go into the atmosphere (outside the coating tank) where evaporation or acceleration will occur, causing the coating liquid to evaporate. Since concentration and assimilation drying occurs before the film thickness decreases, the film becomes thicker at the top.
２）操作時間が長くなる。2) Operation time becomes longer.
塗布連関（塗液間に対する相対的な被塗物体の引き離し
速度）は、透液の液位か一定であると、被塗物体の引上
げ速度または塗液槽の引下げ速度と同じであるが、液位
が低下する場合には塗布速度は引上げ速度または引下げ
速度より大きくなる。塗布速度は塗膜の厚みに関係する
。The coating relationship (the rate of separation of the object to be coated relative to the coating liquid) is the same as the rate of pulling up the object to be coated or the rate of pulling down of the liquid tank when the permeate liquid level is constant; If the level decreases, the coating speed will be greater than the pull-up or pull-down speed. The coating speed is related to the thickness of the coating.
所望の塗布速度が決められた場合、塗液の液位が低下す
る場合にはその分だけ引上は速度または引下げ速度を小
さくしなければならないので操作時間が長くなる。When a desired coating speed is determined, if the liquid level of the coating liquid decreases, the pulling up speed or pulling down speed must be reduced accordingly, resulting in a longer operation time.
３）塗布むら
塗布槽壁面に付着した塗液の乾燥が起シ、温厚部分の出
現によシ塗布むらの原因となる。3) Uneven coating The coating liquid adhering to the wall of the coating tank dries, resulting in the appearance of warm areas, which causes uneven coating.
本発明者は、被塗物体の浸漬および引き出し時における
塗布槽の液位の上昇および下降を小さい範囲に調節し得
る塗布装置について検討した結果、塗布槽の上部に塗液
貯槽と連絡したオーバーフロー口を設けると共に、該オ
ーバーフロー口よシ下部に塗液供給口を設け、該供給口
と塗液貯槽をパイプとポンプを介してまたはパイプとポ
ンプとマリオツドびんを介して連絡し、塗液を循環させ
て塗布操作時においても塗布槽の液位を常に、はぼ一定
に保ち得る装置を考案し、本発明を達成するに到った。As a result of studying a coating device that can adjust the rise and fall of the liquid level in a coating tank within a small range when an object to be coated is immersed and pulled out, the inventor found that an overflow port is connected to the coating liquid storage tank in the upper part of the coating tank. At the same time, a coating liquid supply port is provided at the bottom of the overflow port, and the coating liquid is circulated by connecting the supply port and the coating liquid storage tank through a pipe and a pump, or via a pipe, a pump, and a Mariotsudo bottle. The inventors have devised a device that can keep the liquid level in the coating tank almost constant even during coating operations, and have achieved the present invention.
すなわち本発明は、有機溶媒を用いた塗液中に被塗物体
を浸漬し、次いで塗液と被塗物体とを相対的に引き離し
て、被塗物体表面に塗液を塗布する装置において、該被
塗物体を塗液に浸漬するための塗布槽の上部に、パイプ
により塗液貯槽と連絡したオーバーローロを設けると共
に、該オーバーフロー口より下部に塗液供給口を設け、
該供給口と塗液貯槽を、パイプとポンプを介しであるい
はパイプとポンプとマリオツドびんを介して連絡し、被
塗物体の浸漬および引き出し時における塗布槽の液位の
上昇および下降を小さい範囲に調節して被塗物体の表面
に均一な乾燥塗膜を形成しイｑるようにしたことを特徴
とする塗布装置を提供するものである。That is, the present invention provides an apparatus for applying the coating liquid to the surface of the object by immersing the object to be coated in a coating liquid using an organic solvent, and then relatively separating the coating liquid and the object to be coated. At the top of the coating tank for immersing the object to be coated in the coating liquid, an overroller is provided which is connected to the coating liquid storage tank through a pipe, and a coating liquid supply port is provided below the overflow port,
The supply port and the coating liquid storage tank are connected via a pipe and a pump, or via a pipe, a pump, and a Mariotsudo bottle, and the rise and fall of the liquid level in the coating tank is kept within a small range when the object to be coated is immersed and withdrawn. The present invention provides a coating device which is characterized in that it can be adjusted to form and dry a uniform dry coating film on the surface of an object to be coated.
次に図面によって本発明を具体的に説明する。Next, the present invention will be specifically explained with reference to the drawings.
第１図はパイプとポンプを介して塗液を供給する本発明
塗布装置の例、第２図はパイプとポンプとマリオツドび
んを介して塗液を供給する本発明塗布装置の例である。FIG. 1 shows an example of a coating apparatus of the present invention that supplies a coating liquid through a pipe and a pump, and FIG. 2 shows an example of a coating apparatus of the invention that supplies a coating liquid through a pipe, a pump, and a Mario bottle.
図において１は塗布槽、２は被塗物体、３はテトラヒド
ロフラン、ペントキソン、メチルエチルケトン等の有機
溶媒を用いた塗液、４は塗液貯槽、５はポンプ、６は塗
液供給パイプ、７は塗液オーバーフローパイプ、８は外
部から混入したゴミを除去するための沢過器、９は塗液
補給パイプ、１０は攪拌器、１１はバルブ、１２はマリ
オツドびん、１３は気相連通管である。In the figure, 1 is a coating tank, 2 is an object to be coated, 3 is a coating liquid using an organic solvent such as tetrahydrofuran, pentoxone, methyl ethyl ketone, etc., 4 is a coating liquid storage tank, 5 is a pump, 6 is a coating liquid supply pipe, and 7 is a coating liquid. A liquid overflow pipe, 8 a filter for removing foreign matter mixed in from the outside, 9 a coating liquid supply pipe, 10 an agitator, 11 a valve, 12 a Mario bottle, and 13 a gas phase communication pipe.
第１図において、塗液貯槽４の底部から塗液供給バイブ
ロ全通してポンプ５にょシ塗布槽１の下部（オーバーフ
ロー口よりも下部）に塗液３を供給し、塗布槽１の上部
から塗液オーバーフローパイプ７を通して塗液貯槽４へ
塗液３を循環する。In Fig. 1, the coating liquid 3 is supplied from the bottom of the coating liquid storage tank 4 through the entire coating liquid supply vibrator to the lower part of the coating tank 1 (lower than the overflow port) through the pump 5, and then applied from the top of the coating tank 1. The coating liquid 3 is circulated to the coating liquid storage tank 4 through the liquid overflow pipe 7.
バルブ１１によシ塗液供給量を調節することができる。The amount of coating liquid supplied can be adjusted using the valve 11.
ポンプ５による塗液循環量を被塗物体２の引出しによる
液位低下に打ち勝つ量とし、被塗物体２の浸漬による液
位上昇時はオーバーフロー量が多くなる。かくて液位を
ほぼ一定に保つことが可能である。もちろん、ポンプ５
の流量を、浸漬時と引出し時とで段階的に変えることに
よって、液位を一定に保ってもよい。The amount of coating liquid circulated by the pump 5 is set to be enough to overcome the drop in liquid level due to the withdrawal of the object 2 to be coated, and when the liquid level rises due to immersion of the object 2 to be coated, the amount of overflow increases. In this way, it is possible to keep the liquid level almost constant. Of course pump 5
The liquid level may be kept constant by changing the flow rate of the liquid in stages between immersion and withdrawal.
第２νｊにおいては、塗液貯槽４の下部からポンプ５に
より塗液供給バイブロを通してマリオツドびん１２に塗
液３を供給しておき、次いでマリオツドびん１２から塗
液供給バイブロを辿して塗布槽１の下部に塗液３を供給
し、塗布槽１の上部から塗液オーバーフローパイプ７全
通して塗液貯槽４ヘオーバーフローした塗液３を循環す
る。被塗物体２の引出しにより塗布槽１の液位が低下す
れば、マリオツドびん１２の気相連通管１３の開口Ｒ１
１−まで塗ｐｙ ３が供給され、被塗物体２の浸漬によ
り液位が上昇すればオーバーフローによって排出される
。In the second νj, the pump 5 supplies the coating liquid 3 from the lower part of the coating liquid storage tank 4 to the Mariotsudo bottle 12 through the coating liquid supply vibro. The coating liquid 3 is supplied to the lower part, and the overflowing coating liquid 3 is circulated from the upper part of the coating tank 1 through the entire coating liquid overflow pipe 7 to the coating liquid storage tank 4. When the liquid level in the coating tank 1 decreases due to the withdrawal of the object 2 to be coated, the opening R1 of the gas phase communication pipe 13 of the Mariotsudo bottle 12
Coating py3 is supplied up to 1-, and when the liquid level rises due to immersion of the object 2 to be coated, it is discharged by overflow.
このようにして液位をほぼ一定に保つことができる。In this way, the liquid level can be kept approximately constant.
なお、塗液貯槽４からマリオツドびん１２への塗液の供
給は、通常間欠的におこなわれる。すなわち、マリオツ
ドびん１２に液面計（図示せず）全設けておきマリオツ
ドびん１２の液面の液位が設定値まで低下するとポンプ
５を一定時間作動させて液面を所定レベルまで回復させ
、次いでポンプ５の作動を停止するように接続しておく
。この場合、マリオツドびん１２の液位上昇により、び
ん気相部の減圧度が変化する。これを是正するために、
マリオツドびん１２に圧力計を設けると共に、電磁弁を
介して減圧ラインに接続しておき（図示せず）、びん気
相の圧力が設定値以上になった場合に電磁弁を開くよう
にすればよい。Note that the supply of the coating liquid from the coating liquid storage tank 4 to the Mariotsudo bottle 12 is normally performed intermittently. That is, the Mariotsudo bottle 12 is fully equipped with a liquid level gauge (not shown), and when the liquid level of the Mariotsudo bottle 12 drops to a set value, the pump 5 is operated for a certain period of time to restore the liquid level to a predetermined level. Next, the connection is made so that the operation of the pump 5 is stopped. In this case, as the liquid level in the marriot bottle 12 rises, the degree of pressure reduction in the gas phase of the bottle changes. To correct this,
A pressure gauge is provided in the Mariotsudo bottle 12, and it is connected to a pressure reduction line via a solenoid valve (not shown), and the solenoid valve is opened when the pressure in the gas phase of the bottle exceeds a set value. good.
マリオツドびんを使用する装置は、ポンプのみを使用す
る装置に比べ制御性に優れている利点がある。A device using a Mariotsudo bottle has the advantage of superior controllability compared to a device using only a pump.
以上本発明装置の例を第１図および第２図に従って説明
したが、本発明装置はごれらに限定されるものではない
。例えば、塗液貯槽はオーバーフロー液用と塗布槽への
供給用の２槽に分けてもよい。さらに、沢過器の設置の
有無、その設置場所、電磁弁の設置場所等も適宜変更し
てよい。Although examples of the apparatus of the present invention have been described above with reference to FIGS. 1 and 2, the apparatus of the present invention is not limited to these. For example, the coating liquid storage tank may be divided into two tanks, one for overflow liquid and one for supplying to the coating tank. Furthermore, the presence or absence of a filter, the installation location thereof, the installation location of a solenoid valve, etc. may be changed as appropriate.
本発明塗布装置によれば、被塗物体の浸漬および引出し
時における塗布槽の液位の上昇および下降を小さい範囲
に調節して、液位をほぼ一定に保つことができるので、
塗布物の上下の膜厚変化および塗布むらがなく、操作時
間も短縮でき、被塗物体の表面に塗液を均一に塗布して
塗膜厚みを一定にすることができる。According to the coating apparatus of the present invention, the rise and fall of the liquid level in the coating tank when the object to be coated is immersed and pulled out can be adjusted within a small range, and the liquid level can be kept almost constant.
There is no change in film thickness between the top and bottom of the object to be coated, there is no uneven coating, the operation time can be shortened, and the coating liquid can be uniformly applied to the surface of the object to be coated to maintain a constant coating film thickness.
第１図はパイプとポンプを介して、第２図はパイプとポ
ンプとマリオツドびんを介して、それぞれ塗液を供給す
る本発明塗布装置の例である。
１・・・塗布槽 ２・−・被塗物体 ３・・・塗液
４・・・塗液貯槽 ５・・・ポンプ ６・・・塗液供給
パイプ７・・・塗液オーバーフローパイプ
１２・・・マリオツドびんFIG. 1 shows an example of the coating apparatus of the present invention, in which the coating liquid is supplied through a pipe and a pump, and FIG. 2 shows a coating liquid through a pipe, a pump, and a Mariotsudo bottle. 1... Coating tank 2... Object to be coated 3... Coating liquid 4... Coating liquid storage tank 5... Pump 6... Coating liquid supply pipe 7... Coating liquid overflow pipe 12...・Mariotsudo bottle
Claims (1)
いで塗液と被塗物体とを相対的に引き離して、被塗物体
表面に塗液を塗布する装置において、該被塗物体を塗液
に浸漬するための塗布槽の上部に、パイプによシ塗液貯
槽と連絡したオーバーフロー口を設けると共に、該オー
バーフロー口より下部に塗液供給口を設け、該供給口と
塗液貯槽を、パイプとポンプを介しであるいはパイプと
ポンプとマリオツドびんを介して連絡し、被塗物体の浸
漬および引き出し時における塗布槽の液位の上昇および
下降を小さい範囲に調節して被塗物体の表面に均一な乾
燥塗膜を形成し得るようにしたことを特徴とする塗布装
置。(1) In an apparatus that immerses an object to be coated in a coating liquid using an organic solvent, then relatively separates the coating liquid and the object to be coated, and applies the coating liquid to the surface of the object to be coated. At the top of the coating tank for immersing objects in the coating liquid, an overflow port is provided in the pipe that communicates with the coating liquid storage tank, and a coating liquid supply port is provided below the overflow port, and the coating liquid is connected to the supply port. The storage tank is connected via a pipe and a pump, or via a pipe, a pump, and a Mariotsudo bottle, and the rise and fall of the liquid level in the coating tank is adjusted within a small range when the object to be coated is immersed and withdrawn. 1. A coating device capable of forming a uniform dry coating film on the surface of a coating device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23119282A JPS59123555A (en) | 1982-12-30 | 1982-12-30 | Coating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23119282A JPS59123555A (en) | 1982-12-30 | 1982-12-30 | Coating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59123555A true JPS59123555A (en) | 1984-07-17 |
Family
ID=16919773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23119282A Pending JPS59123555A (en) | 1982-12-30 | 1982-12-30 | Coating device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59123555A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62130768U (en) * | 1986-02-05 | 1987-08-18 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5013404A (en) * | 1973-06-07 | 1975-02-12 |
-
1982
- 1982-12-30 JP JP23119282A patent/JPS59123555A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5013404A (en) * | 1973-06-07 | 1975-02-12 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62130768U (en) * | 1986-02-05 | 1987-08-18 | ||
| JPH0440773Y2 (en) * | 1986-02-05 | 1992-09-24 |
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