JPS63229170A - Coating system - Google Patents
Coating systemInfo
- Publication number
- JPS63229170A JPS63229170A JP6002587A JP6002587A JPS63229170A JP S63229170 A JPS63229170 A JP S63229170A JP 6002587 A JP6002587 A JP 6002587A JP 6002587 A JP6002587 A JP 6002587A JP S63229170 A JPS63229170 A JP S63229170A
- Authority
- JP
- Japan
- Prior art keywords
- paint
- defoaming treatment
- coating
- chamber
- lower chamber
- 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
- 239000011248 coating agent Substances 0.000 title claims abstract description 54
- 238000000576 coating method Methods 0.000 title claims abstract description 54
- 239000003973 paint Substances 0.000 claims abstract description 124
- 238000007872 degassing Methods 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 10
- 238000011084 recovery Methods 0.000 claims description 8
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 4
- 238000010422 painting Methods 0.000 abstract description 10
- 239000012528 membrane Substances 0.000 abstract 2
- 239000010408 film Substances 0.000 description 13
- 239000002184 metal Substances 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 238000005192 partition Methods 0.000 description 4
- 230000001133 acceleration Effects 0.000 description 2
- 238000010923 batch production Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004941 influx Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000009849 vacuum degassing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Coating Apparatus (AREA)
Abstract
Description
【発明の詳細な説明】
[産業上の利用分野]
本発明は塗装システムに関し、特に脱泡処理された塗料
が塗装装置に供給される様になっている塗装システムに
関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a coating system, and particularly to a coating system in which defoamed paint is supplied to a coating device.
[従来の技術]
金属板を切断、孔あけ、折曲げ等により機械加工して各
種機器のための所望の形状及び寸法の構成部品とするこ
とは広く行なわれている。[Prior Art] It is widely practiced to machine metal plates by cutting, drilling, bending, etc. into components of desired shapes and dimensions for various types of equipment.
この様な部品のうちには外観上の理由または発錆防止等
の理由により塗装の施されるものが多い。Many of these parts are painted for reasons such as appearance or to prevent rust.
従来は、この様な金属部品の塗装は、材料金属板を機械
加工により所定の形状及び寸法とした後で行なわれてい
た。Conventionally, such metal parts have been painted after the material metal plate has been machined into a predetermined shape and size.
しかしながら、機械加工後の金属部品は一般に複雑な立
体形状をなしているので、塗装作業が極めて面倒であり
、また塗料ムダも多く、製造コストアップの原因となっ
ていた。However, since the metal parts after machining generally have a complicated three-dimensional shape, painting work is extremely troublesome, and there is also a lot of wasted paint, causing an increase in manufacturing costs.
そこで、近年、材料金属板に予め全面に塗装を施したも
の(プレコートメタル:PCM)を製造し、該PCMを
機械加工して部品を製造することが行なわれる様になっ
てきた。これによれば、PCM製造が平面に対し全面均
一に塗料ムダの少ない状態で良質の塗装をすることがで
きるので1部品製造全体からみても工程が短縮され且つ
省力化及び省資源化をはかることができる。Therefore, in recent years, it has become common to manufacture metal plates whose entire surfaces are coated in advance (pre-coated metal: PCM) and to manufacture parts by machining the PCM. According to this, PCM manufacturing can apply high-quality coating uniformly to the entire surface with less paint waste, so the process can be shortened even from the perspective of manufacturing a single part as a whole, and labor and resource conservation can be achieved. Can be done.
以上の様なPCM製造の際には、塗着効率が高く且つ連
続的に高速で塗膜形成が可能なカーテンフローコーター
塗装、ロールコータ−塗装が好ましい。When producing PCM as described above, curtain flow coater coating and roll coater coating are preferred, which have high coating efficiency and can form a coating film continuously at high speed.
ところで、塗料は一般に粘度が高く、その製造過程にお
いて気泡を含むことが多い、この様な気泡を含む塗料を
用いて塗装を行なうと、形成された塗膜にピンホールが
発生したり、あるいはカーテンフローコーター塗装の際
にはカーテン切れを生じたりして、安定且つ良好な塗装
を行なうことができない、このため、塗装に先立ち塗料
中の気泡を除去する脱泡処理が必要となる。By the way, paints generally have a high viscosity and often contain air bubbles during the manufacturing process. If a paint containing air bubbles is used for painting, pinholes may occur in the formed coating film, or curtain damage may occur. When painting with a flow coater, curtain breakage occurs and stable and good painting cannot be achieved.For this reason, a defoaming process is required to remove air bubbles from the paint prior to painting.
この様な脱泡処理は一般に塗料を入れた密閉容器内を減
圧して塗料中の気泡を膨張させて自由表面へと浮上させ
、浮上した気泡膜を破砕して空気中へと逃がして行なわ
れる。This type of defoaming treatment is generally carried out by reducing the pressure in the sealed container containing the paint, causing the air bubbles in the paint to expand and float to the free surface, then crushing the floating bubble film and releasing it into the air. .
しかし、塗料の粘度はかなり高いためK、以上の様な単
なる減圧処理では短時間に十分な脱泡処理ができない、
このため高速で!1!装の行なわれる塗装装置において
使用されるに十分な量の脱泡済塗料を供給することが困
難となる。そこで、従来、減圧脱泡処理速度を高めるた
めに、たとえば、(1)被処理塗料を強制攪拌したり、
(2)被処理塗料に高速渦流を生ぜしめたり、(3)被
処理塗料に超音波を伝達させたりすることが行なわれて
いた。However, since the viscosity of the paint is quite high, simple depressurization treatment as described above cannot achieve sufficient defoaming treatment in a short time.
Because of this, fast! 1! It becomes difficult to supply a sufficient amount of degassed paint to be used in the coating equipment where coating is carried out. Therefore, conventionally, in order to increase the speed of vacuum degassing treatment, for example, (1) the paint to be treated is forcibly stirred,
(2) Creating high-speed eddy currents in the paint to be treated; and (3) Transmitting ultrasonic waves to the paint to be treated.
[発明が解決しようとする問題点]
しかしながら、上記(1)の促進方法を採用した脱泡処
理の場合には脱泡処理速度を十分に短縮することができ
ず更にバッチ処理であるため連続処理が困難であり、上
記(2)の促進方法を採用した脱泡処理の場合には渦流
の遠心力により顔料等の固形分が分離しやすく更に連続
処理が困難であり、上記(3)の促進方法を採用した脱
泡処理の場合には超り波の作用で顔料等の固形分が凝集
しやすく更に連続処理が困難であった。更に、前記各手
段とも浮上した気泡の破砕能率も低い等の問題点もあっ
た。[Problems to be Solved by the Invention] However, in the case of defoaming treatment that adopts the acceleration method described in (1) above, the defoaming treatment speed cannot be sufficiently shortened, and furthermore, since it is a batch process, continuous processing is required. In the case of defoaming treatment that adopts the acceleration method described in (2) above, solids such as pigments tend to separate due to the centrifugal force of the eddy current, and furthermore, continuous processing is difficult. In the case of defoaming treatment using this method, solids such as pigments tend to aggregate due to the action of overlapping waves, making continuous treatment difficult. Furthermore, each of the above-mentioned means also had problems such as low efficiency of crushing floating bubbles.
従って、従来の脱泡処理装置と塗装装置とを組合わせて
PCM製造等のための塗装システムを構成しようとする
と、上記の様に脱泡がバッチ式であるため、連続的塗装
のためには十分に大きな脱泡処理装置を用いて予め塗料
の脱泡を行ない脱泡済塗料を貯蔵しておく必要があり、
それ故脱泡処理装置、塗料貯蔵容器が著しく大型化し、
塗装システム全体の小型化ができないという問題点があ
った。また、従来の脱泡処理装置を用いる場合には、脱
泡処理方法によっては塗料品質が低下して、形成される
塗膜の品質を低下させるという問題点もあった。Therefore, if you try to configure a coating system for PCM production etc. by combining a conventional degassing treatment device and a coating device, since degassing is a batch process as described above, it will not be possible to perform continuous coating. It is necessary to defoam the paint in advance using a sufficiently large degassing device and store the defoamed paint.
As a result, degassing equipment and paint storage containers have become significantly larger.
There was a problem in that the entire coating system could not be downsized. Furthermore, when using a conventional defoaming treatment device, there is also a problem that the quality of the paint deteriorates depending on the defoaming treatment method, resulting in a decrease in the quality of the formed coating film.
そこで、本発明は、上記の様な従来の塗装システムにお
ける問題点を解決し、小型で高速連続運転が可能で、更
に良好な品質の塗膜を形成できる、塗装システムを提供
することを目的とする。Therefore, the purpose of the present invention is to solve the above-mentioned problems with conventional coating systems, and to provide a coating system that is compact, capable of high-speed continuous operation, and capable of forming a coating film of better quality. do.
[問題点を解決するための手段]
本発明によれば1以上の如き目的は、新規塗料の容器;
上方室と該上方室の下部にスリット状貫通孔板を介して
配置された下方室とを有し、該下方室には該室内を減圧
するための手段が接続されている脱泡処理装置;上記新
規塗料の容器から上記脱泡処理装置の上方室内へと新規
塗料を導入するための第1の塗料導入手段:上記脱泡処
理装置の下方室から脱泡処理済塗料の供給される塗装装
置;該塗装装置にて塗膜形成に寄与しなかった塗料を回
収するための回収手段:更に必要に応じ該回収手段から
回収塗料を上記説泡処理装この上方室へと導入するため
の第2の塗料導入手段:とを有することを特徴とする、
塗装システム、により達成される。SUMMARY OF THE INVENTION According to the present invention, one or more of the following objects: a new paint container;
A defoaming treatment device comprising an upper chamber and a lower chamber disposed below the upper chamber through a slit-like through-hole plate, and a means for reducing the pressure in the chamber is connected to the lower chamber; A first paint introducing means for introducing the new paint from the new paint container into the upper chamber of the defoaming treatment device: a coating device to which the defoamed paint is supplied from the lower chamber of the defoaming treatment device. ; a recovery means for recovering paint that did not contribute to the formation of a coating film in the coating device; A means for introducing the paint:
This is achieved by a painting system.
[実施例]
以下1図面を参照しながら本発明の具体的実施例を説明
する。[Example] A specific example of the present invention will be described below with reference to one drawing.
第1図は本発明による塗装システムの一実施例を示す概
略構成図である。FIG. 1 is a schematic diagram showing an embodiment of a coating system according to the present invention.
第1図において、2は新規塗料を収容せる塗料タンクで
あり、4は塗料脱泡処理装置であり、6は塗装!jt置
であり、8は該塗装装置において塗膜形成に寄与しなか
った塗料を回収するための回収手段である。In Fig. 1, 2 is a paint tank that can contain new paint, 4 is a paint defoaming treatment device, and 6 is a paint! 8 is a recovery means for recovering paint that did not contribute to coating film formation in the coating apparatus.
上記新規塗料タンク2には収容された塗料を攪拌して均
一化をはかるための攪拌手段2aが付設されている。The new paint tank 2 is provided with stirring means 2a for stirring the contained paint to make it uniform.
上記塗料脱泡処理装M4は第2図及び第3図に示される
様な構成を有する。The paint defoaming treatment device M4 has a configuration as shown in FIGS. 2 and 3.
第2図は脱泡処理装置4の縦断面図であり、第3図はそ
のA−A断面図である。FIG. 2 is a longitudinal cross-sectional view of the defoaming treatment device 4, and FIG. 3 is a cross-sectional view taken along the line AA.
第2図及び第3図(a)において、12は円筒状容器で
あり、該容器内は上方室14と下方室16とに区画され
ている。In FIGS. 2 and 3(a), 12 is a cylindrical container, and the inside of the container is divided into an upper chamber 14 and a lower chamber 16.
18は該上方室14と下方室16とを区画するスリット
状貫通孔板である。該貫通孔板は1図示される様に、適
宜の間隔に配列された複数のスリ7)18aを有する。Reference numeral 18 denotes a slit-like through-hole plate that partitions the upper chamber 14 and the lower chamber 16. As shown in FIG. 1, the through-hole plate has a plurality of slots 7) 18a arranged at appropriate intervals.
該各スリットの幅は、被処理塗料の粘度等に応じて該塗
料が適切な速度でS膜となって通過する様に適宜設定さ
れる。たとえば、該スリット幅は20〜2000ルmで
あり、好ましくは50〜300 Bmである。各スリッ
ト間の間隔、スリット状貫通孔板18の厚さ等は所望の
設定処理条件に応じて適宜定めることができる。尚、第
3図(b)は容器12が角筒状の場合のスリット状貫通
孔板のスリットのパターン例を示したものである
20は上記新規塗料タンク2から上記上方室14内へと
被処理塗料を導入するための配管であり、第1図に示さ
れる様に該配管の途中には流量制御パルプ20a、圧送
ポンプ20b及び流量制御パルプ20cが介在している
。The width of each slit is appropriately set according to the viscosity of the paint to be treated so that the paint passes through as an S film at an appropriate speed. For example, the slit width is between 20 and 2000 lm, preferably between 50 and 300 Bm. The interval between each slit, the thickness of the slit-like through-hole plate 18, etc. can be determined as appropriate depending on the desired setting processing conditions. Incidentally, FIG. 3(b) shows an example of the slit pattern of the slit-like through-hole plate when the container 12 is in the shape of a rectangular tube. This is a pipe for introducing the treated paint, and as shown in FIG. 1, a flow rate control pulp 20a, a pressure pump 20b, and a flow rate control pulp 20c are interposed in the middle of the pipe.
21は上記塗料回収手段8から上記上方室14内へと被
処理塗料を導入するための配管であり、第1図に示され
る様に該配管の途中には圧送ポンプ21a及び流量制御
バルブ21bが介在している。21 is a pipe for introducing the paint to be treated from the paint recovery means 8 into the upper chamber 14, and as shown in FIG. 1, a pressure pump 21a and a flow control valve 21b are installed in the middle of the pipe. Intervening.
22はE方室14内に導入された被処理塗料の液面の高
さを検知するためのレベル計であり、上記配管21の流
琶制御バルブ21bの開度はレベル計22の検出結果に
基づき設定される。22 is a level meter for detecting the height of the liquid level of the paint to be treated introduced into the E-side chamber 14, and the opening degree of the flow control valve 21b of the piping 21 is determined based on the detection result of the level meter 22. Set based on
24は上方室14内の上下部分の気密調整のための手段
であり、該気密調整手段は上方室14内において対応す
る開ロバターンを有し水平方向に相対移動可能な様に互
いに密着された2枚のパネル24a、24bと該パネル
水平方向の相対位置を設定するための駆動手段24cと
からなる。該駆動手段24cにより、2枚のパネル24
a、24bのうちの少なくとも一方が水平方向に移動せ
しめられ、かくして双方のパネルの開口が重なり合った
位置に通気可能間ロバターンが形成され、該開口の面積
を適宜設定することにより気密度をiA節することがで
きる。また、気密調整手段24は被処理塗料をスリット
状貫通孔板18表面に均一に導入する機能をも有する。Reference numeral 24 denotes a means for adjusting the airtightness of the upper and lower parts of the upper chamber 14, and the airtightness adjusting means has a corresponding opening lever pattern in the upper chamber 14, and the two parts are closely attached to each other so as to be relatively movable in the horizontal direction. It consists of two panels 24a, 24b and a driving means 24c for setting the relative positions of the panels in the horizontal direction. The two panels 24 are driven by the driving means 24c.
At least one of panels a and 24b is moved in the horizontal direction, and a ventilating space lobe pattern is formed at the position where the openings of both panels overlap, and by appropriately setting the area of the opening, the airtightness is adjusted to iA. can do. The airtight adjustment means 24 also has the function of uniformly introducing the paint to be treated onto the surface of the slit-like through-hole plate 18.
尚、気密調整手段は省略することもできる。Note that the airtight adjustment means can also be omitted.
26は上記下方室16内の空気を排気し該下方室内を減
圧するための配管であり、減圧源たとえば真空ポンプ2
7に接続されており、該配管の途中には調圧弁26aが
介在している。26 is a pipe for exhausting the air in the lower chamber 16 and reducing the pressure in the lower chamber, and is connected to a pressure reduction source such as the vacuum pump 2.
7, and a pressure regulating valve 26a is interposed in the middle of the pipe.
28は上記配管26の容器12内の開口部に対向して該
下方室内に配設された隔壁であり、該配管開口とト記ス
リット状貫通孔板18のスリット部分から落丁する塗料
膜とを隔てている。Reference numeral 28 denotes a partition wall disposed in the lower chamber opposite to the opening of the pipe 26 in the container 12, which separates the pipe opening and the paint film falling from the slit portion of the slit-like through-hole plate 18. Separated.
32は下方室16内に導入された塗料の液面の高さを検
知するためのレベル計であり、上記配管20の流量制御
バルブ20cの開度はレベル計32の検出結果に基づき
設定される。32 is a level meter for detecting the height of the liquid level of the paint introduced into the lower chamber 16, and the opening degree of the flow control valve 20c of the piping 20 is set based on the detection result of the level meter 32. .
34は下方室16の下部に接続され脱泡処理済塗料を上
記塗装装置6へと移送するための配管であり、該配管の
途中には圧送ポンプ34a及び流量制御バルブ34bが
介在している。A piping 34 is connected to the lower part of the lower chamber 16 and is used to transfer the defoamed paint to the coating device 6, and a pressure pump 34a and a flow control valve 34b are interposed in the piping.
上記塗装袋g26及び塗料回収手段8は第4図に示され
る様な構成を有する。The paint bag g26 and the paint collecting means 8 have a structure as shown in FIG.
第4図はカーテンフローコーターによる塗装時における
塗装6!を置6及び塗料回収手段8の具体的構成を示す
縦断面図である。Figure 4 shows painting 6 when using a curtain flow coater! FIG. 4 is a vertical cross-sectional view showing a specific configuration of a housing 6 and a paint recovery means 8. FIG.
塗装袋226はフローコーターヘッド6aと該ヘッドの
下方に配こされたベルトコンベアー6bとからなり、被
塗装物である金属板Pは該ベルトコンベアー上を矢印方
向に搬送される。The coating bag 226 consists of a flow coater head 6a and a belt conveyor 6b disposed below the head, and the metal plate P to be coated is conveyed on the belt conveyor in the direction of the arrow.
塗料回収装置8は上記フローコーターヘッド6aの真下
においてベルトコンベアー6bの切れ目の下方KA’!
された樋8aと該樋内の塗料を受けるための受器8bと
からなる。そして、該受器に上記配管21が接続されて
いる。尚1図面では塗装装置がカーテンフローコーター
の場合を示しているが、塗装装置がロールコータ−等の
場合にも同様に適用できる。The paint recovery device 8 is directly below the flow coater head 6a and below the cut of the belt conveyor 6b KA'!
It consists of a gutter 8a and a receiver 8b for receiving the paint in the gutter. The pipe 21 is connected to the receiver. Although one drawing shows a case where the coating device is a curtain flow coater, the present invention can be similarly applied to a case where the coating device is a roll coater or the like.
次に、本実施例塗装システムの動作を説明する。Next, the operation of the coating system of this embodiment will be explained.
先ず、塗料脱泡処理装置4に通じる各配管のバルブを、
バルブ26aを除いて閉じ、真空ポンプ27を作動させ
て脱泡処理装置4内の排気を行ない、所望の気圧に減圧
する。尚、減圧度は塗料粘度等により異なるが、通常1
0〜50To r r程度が適当である。First, the valves of each pipe leading to the paint degassing treatment device 4 are
The valve 26a is closed, and the vacuum pump 27 is operated to evacuate the inside of the degassing treatment device 4, thereby reducing the pressure to a desired atmospheric pressure. The degree of pressure reduction varies depending on the viscosity of the paint, etc., but it is usually 1.
Approximately 0 to 50 Torr is appropriate.
次に、気密調整手段24の2つのパネル24a、24b
間の配置を駆動手段24cにより適宜aI整することに
より所望の気密状態にする(尚。Next, the two panels 24a and 24b of the airtight adjustment means 24
A desired airtight state is achieved by appropriately adjusting the arrangement between the spaces using the drive means 24c (note).
気密調整手段24は必ずしも必要なく、その場合には前
記気密操作は省略する)。The airtightness adjustment means 24 is not necessarily necessary, and in that case, the airtightness operation described above is omitted).
次に、バルブ20a、20cの開度を適宜設定した上で
、圧送ポンプ20bを作動させて、塗料タンク2内の新
規塗料を配管20を通じて上方室14内に導入する。上
方室14内に導入された被処理塗料はスリット状貫通孔
板18を通って下方室16内へと落下する。この際の塗
料の下方室16内への流入速度は、該下方室内の気圧、
上記スリット状貫通孔板18の開口面積及び気密m!!
!!手段24により設定される気密度、塗料の送給条件
、塗料粘度等に応じて決まる。Next, after appropriately setting the opening degrees of the valves 20a and 20c, the pressure pump 20b is operated to introduce the new paint in the paint tank 2 into the upper chamber 14 through the pipe 20. The paint to be treated introduced into the upper chamber 14 passes through the slit-like through-hole plate 18 and falls into the lower chamber 16. At this time, the inflow speed of the paint into the lower chamber 16 is determined by the atmospheric pressure in the lower chamber,
Opening area and airtightness m of the slit-like through-hole plate 18! !
! ! It is determined according to the airtightness set by means 24, paint feeding conditions, paint viscosity, etc.
かくして、スリッ) 18aから下方室16内に流入す
る塗料はスリット18aの配列パターンに対応した膜状
(カーテン状)となり、従って表面積が十分に拡大され
、且つN11g4化が進む状態で下方室内に流下する。Thus, the paint flowing into the lower chamber 16 from the slits 18a forms a film (curtain shape) corresponding to the arrangement pattern of the slits 18a, so that the surface area is sufficiently expanded and the paint flows into the lower chamber in a state in which N11g4 conversion is progressing. do.
このため、該被処理塗料中の気泡は減圧下、その両面の
気泡膜部が拡大し容易1つ迅速に破砕して気泡中の空気
を放出する。For this reason, the bubbles in the paint to be treated expand under reduced pressure, and the bubble film portions on both sides of the bubbles expand and are easily and quickly crushed to release the air in the bubbles.
尚、配管26を通じての下方室16内の排気は隔壁28
より塗料流下位置からは隔離されて行なわれるので、塗
料流下状態を乱すことなく、また該配管内に塗料が入り
込むことはない。Note that the exhaust from the lower chamber 16 through the piping 26 is carried out through the partition wall 28.
Since this is done at a distance from the paint flow down position, the flow of paint is not disturbed and the paint does not enter the pipe.
以上の様にして塗料は下方室16内に薄膜となって脱泡
されながら流下し、容器下部にたまる。As described above, the paint forms a thin film in the lower chamber 16, flows down while being degassed, and accumulates at the bottom of the container.
かくして得られた脱泡処理済塗料は、バルブ34bの開
度を適宜設定した上で圧送ポンプ34aを作動させるこ
とにより、塗装装置のフローコーターヘッド6aに供給
される。The defoamed paint thus obtained is supplied to the flow coater head 6a of the coating apparatus by operating the pressure pump 34a after appropriately setting the opening of the valve 34b.
上記フローコーターヘツF6aからカーテン状に流下し
た塗料により金属板Pが塗装され、この際塗膜形成に寄
与しなかった塗料は樋8a内に落下し、更に受器8bに
回収される。The metal plate P is coated with the paint that flows down like a curtain from the flow coater head F6a, and the paint that does not contribute to the formation of the paint film falls into the gutter 8a and is further collected in the receiver 8b.
上記受器8bに回収された塗料は、バルブ21bの開度
を適宜設定した上で圧送ポンプ21aを作動させること
により、配管企1を通って上記玉方室14内へと導入さ
れ、新規塗料と同様にして脱泡処理に付される。The paint collected in the receiver 8b is introduced into the paint chamber 14 through the piping 1 by appropriately setting the opening degree of the valve 21b and operating the pressure pump 21a, and is then introduced into the paint chamber 14 to create a new paint. It is subjected to defoaming treatment in the same manner as above.
尚、上記レベル計22により上方室14内の塗料液面が
所定の高さになったことが検出された時には、配管21
に付された流量制御バルブ21bが自動的にコントロー
ルされ上方室14内への回収塗料の流入が制限される。Incidentally, when the level meter 22 detects that the paint liquid level in the upper chamber 14 has reached a predetermined height, the piping 21
The flow rate control valve 21b attached to the upper chamber 14 is automatically controlled to restrict the flow of recovered paint into the upper chamber 14.
また、レベル計32により下方室16内の塗料液面が所
定の高さになったことが検出された時には、配管20に
付された流量制御バルブ20cが自動的にコントロール
され上方室14内への新規塗料の流入が制限される。Furthermore, when the level meter 32 detects that the paint liquid level in the lower chamber 16 has reached a predetermined height, the flow rate control valve 20c attached to the pipe 20 is automatically controlled to allow the liquid to flow into the upper chamber 14. The influx of new paints will be restricted.
尚、以上の説明において、受器8bに回収された塗料を
脱泡処理装置4に直接導入する場合を説明したが、場合
により回収され″た塗料は新規塗料の容器2に導入して
もよく、更に別処理してもよい。Incidentally, in the above explanation, the case where the paint collected in the receiver 8b is directly introduced into the defoaming treatment device 4 has been explained, but depending on the situation, the recovered paint may be introduced into the new paint container 2. , may be further processed separately.
以上の様に、本実施例によれば、塗装装置6で消費され
る塗料の量に応じて、必要十分な量の塗料の脱泡処理を
連続的に行なうことができ、塗装システムの連続運転が
十分に可使である。As described above, according to this embodiment, the necessary and sufficient amount of paint can be continuously defoamed according to the amount of paint consumed by the coating device 6, and the coating system can be operated continuously. is sufficiently usable.
次に、上記実施例システムの特性調査を行なった実例を
示す。Next, an example will be shown in which the characteristics of the above embodiment system were investigated.
実例1:
粘度3.2ボイズの白色ポリエステル樹脂系液状塗料(
商品名「Vニット#1500J、大日本塗料株式会社製
)30旦を用いた。第1〜4図に示されるシステムを用
いて、被塗装物を存在させずに、塗装装置から流下する
塗料を全量回収して脱泡処理に付し、以下同様に塗料を
循環使用した。Example 1: White polyester resin liquid paint with a viscosity of 3.2 voids (
Product name "V Knit #1500J, manufactured by Dainippon Toyo Co., Ltd.)" was used for 30 minutes. Using the system shown in Figures 1 to 4, the paint flowing down from the coating equipment was removed without the presence of the object to be coated. The entire amount was collected and subjected to defoaming treatment, and the paint was recycled in the same manner thereafter.
ここで、脱泡処理装置は以下の様な条件であった。Here, the conditions of the defoaming treatment equipment were as follows.
スリット状貫通孔の輻 : 0.2mmスリット状貢
通孔の高さ : 80mmスリット状貫通孔の全開口
面積 :
1.28crn’
減圧度 = 30Torr
塗料流Et : 10.7Jl/min塗装装置に
おける塗料カーテンの状態を観察したところ、2時間の
連続運転でも全くカーテン切れがなく、安定な状態であ
った。Convergence of slit-like through-hole: 0.2 mm Height of slit-like through-hole: 80 mm Total opening area of slit-like through-hole: 1.28 crn' Degree of reduced pressure = 30 Torr Paint flow Et: 10.7 Jl/min Paint in coating equipment When the condition of the curtain was observed, it was found that the curtain did not break at all even after 2 hours of continuous operation and was in a stable condition.
実例2(比較例):
脱泡処理装置で減圧を行なわないことを除いて上記実例
1と同様に連続運転を行なった。Example 2 (comparative example): Continuous operation was carried out in the same manner as in Example 1 above, except that the degassing device was not depressurized.
塗装装置における塗料カーテンの状態を観察したところ
、最初の10分間はカーテン切れが1回/分の割合で生
じ、それ以降はカーテン切れが頻繁に生じた。When the condition of the paint curtain in the coating equipment was observed, curtain breakage occurred at a rate of once per minute for the first 10 minutes, and thereafter curtain breakage occurred frequently.
以上の実施例においては、塗装装置としてカーテンフロ
ーコーターを例示したが、本発明においては塗装装置と
してその他の適宜の装置を使用してもよい。In the above embodiments, a curtain flow coater was used as an example of the coating device, but other appropriate devices may be used as the coating device in the present invention.
[発明の効果]
以上の様な本発明によれば、脱泡処理装置において被処
理塗料をカーテン状に流下させて表面積を大きくシ、且
つ薄膜状態で減圧するので、該塗料中の気泡が容易且つ
迅速に拡大破砕され空気を塗料の外へ放散し効率良く脱
泡処理ができ、このため該脱泡処理装置が小型であって
も連続的に被処理塗料を導入しながら塗装装置での連続
的塗料消費に十分に対応した脱泡処理済塗料の供給を行
なうことができ、かくして小型で高速連続運転が回部で
更に良好な品質の塗膜を形成できる塗装システムが得ら
れる。[Effects of the Invention] According to the present invention as described above, the paint to be treated is caused to flow down in a curtain-like manner in the degassing treatment device to increase the surface area and reduce the pressure in a thin film state, so that air bubbles in the paint are easily removed. In addition, the air can be quickly expanded and crushed to dissipate the air outside of the paint, allowing for efficient defoaming treatment.For this reason, even if the degassing treatment equipment is small, the paint to be treated can be continuously introduced into the painting equipment, allowing continuous processing. It is possible to supply a defoamed paint that satisfactorily meets the paint consumption of the market, and thus a coating system that is compact and capable of high-speed continuous operation to form a coating film of better quality can be obtained.
第1図は本発明による塗装システムを示す概略構成図で
ある。
第2図は脱泡処理装置を示す縦断面図であり、第3図は
そのA−A断面図である。
第4図は塗装時における塗装装置及び塗料回収手段の具
体的構成を示す縦断面図である。
2:新規塗料タンク、
4:脱泡処理装置。
6:塗装装置、 8:塗料回収手段、12:容器、
14:上方室。
16:下方室、
18ニスリット状貫通孔板、
18aニスリツト、
20.21,26.34=配管、
22 、32 ニレペル計。
24:気密7A整手段、
28:隔壁。
第2S1FIG. 1 is a schematic diagram showing a coating system according to the present invention. FIG. 2 is a longitudinal cross-sectional view showing the defoaming treatment device, and FIG. 3 is a cross-sectional view taken along the line AA. FIG. 4 is a longitudinal sectional view showing the specific structure of the coating device and paint recovery means during coating. 2: New paint tank, 4: Defoaming treatment equipment. 6: Painting device, 8: Paint collection means, 12: Container,
14: Upper chamber. 16: Lower chamber, 18 Nislit-like through-hole plate, 18a Nislit, 20.21, 26.34 = Piping, 22, 32 Nirepel meter. 24: Airtight 7A adjustment means, 28: Partition wall. 2nd S1
Claims (5)
ット状貫通孔板を介して配置された下方室とを有し、該
下方室には該室内を減圧するための手段が接続されてい
る脱泡処理装置;上記新規塗料の容器から上記脱泡処理
装置の上方室内へと新規塗料を導入するための第1の塗
料導入手段;上記脱泡処理装置の下方室から脱泡処理済
塗料の供給される塗装装置;該塗装装置にて塗膜形成に
寄与しなかった塗料を回収するための回収手段;更に必
要に応じ該回収手段から回収塗料を上記脱泡処理装置の
上方室へと導入するための第2の塗料導入手段;とを有
することを特徴とする、塗装システム。(1) Container for new paint; has an upper chamber and a lower chamber disposed below the upper chamber through a slit-like through-hole plate, and a means for reducing the pressure in the chamber is connected to the lower chamber. a defoaming treatment device; a first paint introducing means for introducing the new paint from the new paint container into the upper chamber of the degassing treatment device; defoaming treatment from the lower chamber of the defoaming treatment device; A coating device to which the finished paint is supplied; a recovery means for recovering paint that did not contribute to the formation of a coating film in the coating device; and, if necessary, the recovered paint is transferred from the recovery device to a chamber above the defoaming treatment device. a second paint introducing means for introducing the paint into the paint system.
が付設されており、脱泡処理装置に下方室内の塗料液面
の高さを検出する手段が付設されており、該検出手段に
より検出される塗料液面高さに応じて上記第1塗料導入
量調整手段が作動せしめられる、特許請求の範囲第1項
の塗装システム。(2) The first paint introduction means is attached with a first paint introduction amount adjusting means, and the defoaming treatment device is attached with means for detecting the height of the paint liquid level in the lower chamber, and the detection 2. The coating system according to claim 1, wherein said first paint introduction amount adjusting means is operated in accordance with the paint liquid level detected by said means.
が付設されており、脱泡処理装置に上方室内の塗料液面
の高さを検出する手段が付設されており、該検出手段に
より検出される塗料液面高さに応じて上記第2塗料導入
量調整手段が作動せしめられる、特許請求の範囲第1項
の塗装システム。(3) The second paint introduction means is attached with a second paint introduction amount adjusting means, and the defoaming treatment device is attached with means for detecting the height of the paint liquid level in the upper chamber, and the detection 2. The coating system according to claim 1, wherein said second paint introduction amount adjusting means is operated in accordance with the paint liquid level detected by said means.
請求の範囲第1項の塗装システム。(4) The coating system according to claim 1, wherein the coating device is a curtain flow coater.
囲第項の塗装システム。(5) The coating system according to claim 1, wherein the coating device is a roll coater.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6002587A JP2512739B2 (en) | 1987-03-17 | 1987-03-17 | Painting system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6002587A JP2512739B2 (en) | 1987-03-17 | 1987-03-17 | Painting system |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS63229170A true JPS63229170A (en) | 1988-09-26 |
JP2512739B2 JP2512739B2 (en) | 1996-07-03 |
Family
ID=13130114
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6002587A Expired - Lifetime JP2512739B2 (en) | 1987-03-17 | 1987-03-17 | Painting system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2512739B2 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0343372U (en) * | 1989-08-29 | 1991-04-23 | ||
JP2010214833A (en) * | 2009-03-18 | 2010-09-30 | Ricoh Co Ltd | Coating material for thermosensitive recording medium, and method and apparatus for manufacturing thermosensitive recording medium |
JP2013233496A (en) * | 2012-05-08 | 2013-11-21 | Disco Corp | Deaerator |
JP2013254817A (en) * | 2012-06-06 | 2013-12-19 | Disco Abrasive Syst Ltd | Laser processing device |
-
1987
- 1987-03-17 JP JP6002587A patent/JP2512739B2/en not_active Expired - Lifetime
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0343372U (en) * | 1989-08-29 | 1991-04-23 | ||
JP2010214833A (en) * | 2009-03-18 | 2010-09-30 | Ricoh Co Ltd | Coating material for thermosensitive recording medium, and method and apparatus for manufacturing thermosensitive recording medium |
JP2013233496A (en) * | 2012-05-08 | 2013-11-21 | Disco Corp | Deaerator |
JP2013254817A (en) * | 2012-06-06 | 2013-12-19 | Disco Abrasive Syst Ltd | Laser processing device |
Also Published As
Publication number | Publication date |
---|---|
JP2512739B2 (en) | 1996-07-03 |
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