JP2005205313A - Flow coater - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To coat a relatively large sized material (w) to be coated with a coating material flow-out head 2 maintained compact. <P>SOLUTION: In the flow coater provided with a coating material supply port member 7 in a trough like coating material retaining body part 5 and operated by overflowing a coating material liquid (t) supplied at a fixed flow rate from one sidewall upper end (b1) of the body part 5 in the longitudinal direction in a curtain like form and passing the material (w) to be coated below the body part 5, a trough like auxiliary coating material retaining part 6 having a relatively small volume is separately arranged within the range of the trough length of the coating material retaining body part 5. The coating material supply member 7 is internally mounted in the auxiliary coating material retaining part 6. The coating material liquid (t) is previously discharged into the auxiliary coating material retaining part 6 from the coating material supply port member 7 and is overflown from the one side wall surface 3 of the auxiliary coating material retaining part 6 in the longitudinal direction to be indirectly supplied to the coating material retaining main body part 5. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は、被塗装物としての板状体などに塗料を落下させてその表面に被着させるようになしたフローコーターに関する。   The present invention relates to a flow coater in which a coating material is dropped on a plate-like body or the like as an object to be coated and adhered to the surface thereof.

左右方向へ長い塗料溜まり本体部内に外方から特定流量で供給される塗料液を該塗料溜まり本体部の塗料流出個所からカーテン状に流下させるものとした塗料溜まり本体部と、これの下方に被塗装物を前後方向へ水平移動させるものとしたコンベアとを備えたフローコーターは存在している（特許文献１参照）。   A paint reservoir main body part that allows a paint liquid supplied at a specific flow rate from the outside to flow into the paint reservoir main body part in the form of a curtain from the paint outflow portion of the paint reservoir main body part, and a lower part of the paint reservoir main body part. There is a flow coater provided with a conveyor that horizontally moves a coated object in the front-rear direction (see Patent Document 1).

該フローコーターでは、前記コンベアが被塗装物を水平移動させている過程で、被塗装物が前記ヘッドからカーテン状に流出される塗料液（カーテン状の流下塗料液）をくぐり抜けるのであり、このくぐり抜け時にその上面などに前記塗料溜まり本体部から流下される塗料液を被着される。   In the flow coater, while the conveyor is moving the object to be coated horizontally, the object to be coated passes through the paint liquid (curtain-like falling paint liquid) flowing out from the head in the form of a curtain. Sometimes the upper surface or the like is coated with a coating liquid flowing down from the main body of the paint reservoir.

上記したカーテン状の流下塗料液の左右方向巾は被塗装物の寸法に対応したものとなす必要があり、被塗装物の対象がキッチンの収納棚の扉などであるとき、上記したカーテン状の流下塗料液の左右方向巾は最近までは凡そ１２００ｍｍ程度で足りていた。しかし、現今における扉は大型化してきたため、前記カーテン状の流下塗料液の左右方向巾は凡そ１６００ｍｍ程度以上となすことが要請されている。   The horizontal width of the curtain-like falling coating liquid must correspond to the size of the object to be coated. When the object of the object to be painted is a door of a kitchen storage shelf, etc. Until recently, about 1200 mm was sufficient for the width of the falling coating liquid in the left-right direction. However, since the doors are now becoming larger, it is required that the horizontal width of the curtain-like falling coating liquid be about 1600 mm or more.

特許第３２２６４３２号公報Japanese Patent No. 3226432

上記した在来のフローコーターにおいては、前記カーテン状の流下塗料液の左右方向巾が周囲環境により定まる特定長さを超えるようになると、該カーテン状の流下塗料液はその厚さを左右方向の全ての位置で安定的に同一となすことが難しいのであり、該流下塗料液の左右方向巾が大きくなるに従って、その厚さは大小に変化し易くなる。
前後方向厚さが大小に変化するカーテン状の流下塗料液は、被塗装物の表面に均一厚さに付着し難くて、塗装後の被塗装物の表面に塗料による凹凸の縞模様を生じさせるようになり、製品の品質を低下させるのである。 In the conventional flow coater described above, when the width of the curtain-like falling coating liquid exceeds a specific length determined by the surrounding environment, the curtain-like falling coating liquid has a thickness in the horizontal direction. It is difficult to make it the same stably at all positions, and as the width of the falling coating liquid increases in the left-right direction, the thickness easily changes.
Curtain-like falling coating liquid whose thickness varies in the front-rear direction is difficult to adhere to the surface of the object to be coated with a uniform thickness and causes uneven stripes due to the paint on the surface of the object to be coated. As a result, the quality of the product is degraded.

本発明は、斯かる問題点を合理的に解消しようとするものであって、即ち、塗料溜まり本体部の前後方向断面形状を大型化させないでも、特定高さでの左右方向上の任意位置の前後方向厚さ及び流下速度が安定的に同一大きさとなるカーテン状の流下塗料液の左右方向巾を比較的大きくなすことのできるフローコーターを提供することを目的とする。   The present invention is intended to rationally solve such a problem, that is, without increasing the cross-sectional shape of the paint reservoir main body in the front-rear direction, the arbitrary position in the left-right direction at a specific height can be obtained. It is an object of the present invention to provide a flow coater capable of relatively increasing the width in the left-right direction of a curtain-like falling coating liquid in which the thickness in the front-rear direction and the flowing-down speed are stably the same.

上記目的を達成するため、本願の第１発明は、請求項１に記載したように、樋状の塗料溜まり本体部内に塗料供給口部材を備え、特定流量で供給される塗料液を該塗料溜まり本体部の長さ方向片側壁上縁からカーテン状に溢流させ、その下方個所で被塗装物を通過させるものとして行われるフローコーターにおいて、前記塗料溜まり本体部内に於ける樋状長さ範囲内へ比較的容積の小さい樋状の補助塗料溜まり部を別途に配置し、該補助塗料溜まり部内に塗料供給口部材を内装させると共に、該塗料供給口部材から塗料液を予め補助塗料溜まり部内へ吐出させ、且つ該塗料液が補助塗料溜まり部の長さ方向片壁面から溢流されて塗料溜まり本体部内へ間接供給されるものである。   In order to achieve the above object, according to a first aspect of the present invention, a paint supply port member is provided in a bowl-shaped paint reservoir main body, and a paint liquid supplied at a specific flow rate is supplied to the paint reservoir. In a flow coater that is made to overflow in the form of a curtain from the upper edge of one side wall in the length direction of the main body, and to pass the object to be coated in the lower part, within the bowl-shaped length range in the paint reservoir main body An auxiliary paint reservoir having a relatively small volume is arranged separately, and a paint supply port member is provided in the auxiliary paint reservoir, and paint liquid is discharged from the paint supply port member into the auxiliary paint reservoir in advance. In addition, the coating liquid is overflowed from one wall surface in the lengthwise direction of the auxiliary paint reservoir and is indirectly supplied into the paint reservoir main body.

上記発明は、具体的には、次のようになすのがよい。
即ち、請求項２に記載したように、補助塗料溜まり部内に供給された塗料液が塗料溜まり本体部内へ溢流する個所と、塗料溜まり本体部内の塗料液の溢流個所とが相反する位置関係の構成となす。 Specifically, the above invention is preferably made as follows.
That is, as described in claim 2, the position where the paint liquid supplied into the auxiliary paint reservoir overflows into the paint reservoir main body and the overflow of the paint liquid within the paint reservoir main body conflicts with each other. And the structure.

また請求項３に記載したように、塗料溜まり部を塗料溜まり本体部と凡そ同形状で且つ同寸法の構成となす。   According to a third aspect of the present invention, the paint reservoir is configured to have approximately the same shape and the same dimensions as the paint reservoir main body.

また請求項４に記載したように、補助塗料溜まり部内へ塗料液を供給させる塗料供給口部材のスリット口を、補助塗料溜まり部内の塗料液が塗料溜まり本体部内へ溢流する側と逆向きに位置させる。
さらには請求項５に記載したように、樋状の塗料溜まり本体部の左右方向長さを凡そ１６００ｍｍ程度以上となす。 According to a fourth aspect of the present invention, the slit opening of the paint supply port member for supplying the paint liquid into the auxiliary paint reservoir is arranged in a direction opposite to the side where the paint liquid in the auxiliary paint reservoir overflows into the paint reservoir main body. Position.
Further, as described in claim 5, the length of the bowl-shaped paint reservoir main body in the left-right direction is about 1600 mm or more.

上記した本発明によれば次のような効果が得られる。
即ち、請求項１記載のものによれば、塗料供給口部材から補助塗料溜まり部の内方に供給され滞留した塗料液の流動乱れを補助塗料溜まり部内で減衰させた後に補助塗料溜まり部内の塗料液を塗料溜まり本体部の内方へ乱れの生じ難い状態で供給することができ、したがって塗料溜まり本体部内に滞留された塗料液がその長さ方向片側壁上縁から流出しているときのその塗料液の流動乱れが生じ難いものとなすことができ、たとえ塗料溜まり本体部がこれの巾方向断面形状を従来と略同一に維持された上でその長さ方向片側壁上縁から流出して形成されるカーテン状の流下塗料液の左右方向巾を従来より凡そ３５％程度以上に大きくなされた場合であっても、該カーテン状の流下塗料液を、これの左右方向任意位置での厚さ及び流速が安定的に同一となるように維持させることができるのである。この結果、従来では塗装できなかったようなサイズの被塗装物であっても、塗料溜まり本体部の巾方向断面形状を大きくすることなく塗装できるようになるのである。 According to the above-described present invention, the following effects can be obtained.
That is, according to the first aspect of the present invention, after the flow disturbance of the coating liquid supplied and retained from the paint supply port member to the inside of the auxiliary paint reservoir is attenuated in the auxiliary paint reservoir, the paint in the auxiliary paint reservoir is The liquid can be supplied to the inside of the paint reservoir main body in a state in which it is unlikely to be disturbed. Therefore, when the paint liquid staying in the paint reservoir main body flows out from the upper edge of one side wall in the longitudinal direction, It is possible to prevent the coating liquid from being disturbed by flow, and even if the paint reservoir main body is maintained in the same cross-sectional shape in the width direction as before, it flows out from the upper edge of one side wall in the length direction. Even when the horizontal width of the curtain-like falling coating liquid formed is increased to about 35% or more than before, the thickness of the curtain-like falling coating liquid at an arbitrary position in the left-right direction is reduced. And stable flow rate It is possible to maintain to be identical. As a result, even an object to be coated having a size that could not be painted in the past can be painted without increasing the cross-sectional shape in the width direction of the paint reservoir body.

また補助塗料溜まり部が設けられていない状態の下で前記カーテン状の流下塗料液がこれの巾方向任意位置で安定的に同一厚さ及び同一流速とならない場合にも、補助塗料溜まり部を設けることにより、前記カーテン状の流下塗料液をそのようなものとなすことができ、塗装品質を向上させることができるのである。   An auxiliary paint reservoir is also provided when the curtain-like falling paint liquid does not stably have the same thickness and the same flow velocity at an arbitrary position in the width direction in a state where no auxiliary paint reservoir is provided. Thus, the curtain-like falling coating liquid can be made into such a thing, and the coating quality can be improved.

請求項２記載のものによれば、補助塗料溜まり部内に供給された塗料液が塗料溜まり本体部内へ溢流する個所と、塗料溜まり本体部内の塗料液の溢流個所との距離が大きくなるため、補助塗料溜まり部内に供給された塗料液が塗料溜まり本体部内へ溢流するときの流動乱れの影響が塗料溜まり本体部内の塗料液の溢流個所にまで及び難くなり、前記カーテン状の流下塗料液をこれの巾方向任意位置で安定的且つ効果的に同一厚さ及び同一流速となすことができる。   According to the second aspect of the present invention, the distance between the location where the paint liquid supplied into the auxiliary paint reservoir portion overflows into the paint reservoir body portion and the overflow location of the paint fluid within the paint reservoir body portion increases. When the coating liquid supplied into the auxiliary paint reservoir overflows into the paint reservoir main body, the influence of the flow turbulence is difficult to reach the overflow location of the paint liquid in the paint reservoir main body. The liquid can be stably and effectively made to have the same thickness and the same flow velocity at arbitrary positions in the width direction.

請求項３記載のものによれば、上記請求項１及び２記載の効果をコンパクトの構造により効果的に得ることができる。
請求項４記載のものによれば、補助塗料溜まり部内へ塗料液がスリット口を通じて流出するときのその流動乱れの影響が、補助塗料溜まり部内の塗料液が塗料溜まり本体部内へ溢流する個所まで及び難くなり、前記カーテン状の流下塗料液をこれの巾方向任意位置で安定的且つ効果的に同一厚さ及び同一流速となすことができる。 According to the third aspect of the invention, the effects of the first and second aspects can be effectively obtained with a compact structure.
According to the fourth aspect of the present invention, when the coating liquid flows out into the auxiliary paint reservoir through the slit opening, the influence of the flow disturbance is up to the point where the paint liquid in the auxiliary paint reservoir overflows into the paint reservoir main body. Thus, the curtain-like falling coating liquid can be stably and effectively made to have the same thickness and the same flow velocity at arbitrary positions in the width direction.

請求項５記載のものによれば、樋状の塗料溜まり本体部の左右方向長さを凡そ１６００ｍｍ程度以上となしたため、前記したカーテン状の流下塗料液の巾も凡そ１６００ｍｍ程度以上となり、キッチンの収納棚の比較的大きな扉であっても支障なく高品質な塗装が行えるようになる。   According to the fifth aspect of the present invention, since the length of the bowl-shaped paint reservoir main body is about 1600 mm or more, the width of the curtain-like falling coating liquid is about 1600 mm or more. Even with a relatively large door on the storage shelf, high-quality painting can be performed without any problem.

次に本発明の一実施例に係るフローコーターを図１から図４を参照して詳細に説明する。図１は前記フローコーターの側面図、図２は前記フローコーターの一部側面図、図３は前記フローコーターの平面視説明図、図４は前記フローコーターの一部斜視図である。   Next, a flow coater according to an embodiment of the present invention will be described in detail with reference to FIGS. 1 is a side view of the flow coater, FIG. 2 is a partial side view of the flow coater, FIG. 3 is an explanatory plan view of the flow coater, and FIG. 4 is a partial perspective view of the flow coater.

これらの図に示すように、本発明のフローコーターは被塗装物ｗを水平前後方向ｆへ搬送するものとなされたコンベア１と、これの上側に配設され塗料液ｔをカーテン状に流出させるものとなされた塗料流出ヘッド２とを備えるほか、該ヘッド２より前方ｆ１側で前記コンベア１の上側に遠赤外線照射装置３及び紫外線照射装置４を前後配置状に設けられた構成となされている。   As shown in these figures, the flow coater of the present invention is a conveyor 1 configured to convey an object to be coated w in the horizontal front-rear direction f, and is disposed on the upper side of the conveyer 1 so that the coating liquid t flows out in a curtain shape. In addition to the paint spill head 2 that has been made, a far-infrared irradiation device 3 and an ultraviolet irradiation device 4 are provided in a front-rear arrangement on the front f1 side of the head 2 and above the conveyor 1. .

前記塗料流出ヘッド２の詳細は次のようになされている。
即ち、図２及び図３に示すように、図示しない支持部材を介して左右方向ｆ０２の水平状に支持された塗料溜まり本体部５、該塗料溜まり本体部５の内方にこれの長さ方向（左右方向）ｆ０２の水平状に配設された比較的小さい補助塗料溜まり部６、及び、該補助塗料溜まり部６の内方に左右方向ｆ０２の水平状に配設された塗料供給口部材７を有している。 The details of the paint outflow head 2 are as follows.
That is, as shown in FIGS. 2 and 3, the paint reservoir main body 5 supported horizontally in the left-right direction f02 via a support member (not shown), and the length direction of the paint reservoir main body 5 inward of the paint reservoir main body 5 (Left-right direction) A relatively small auxiliary paint reservoir 6 arranged horizontally in f02, and a paint supply port member 7 arranged horizontally in the left-right direction f02 inside the auxiliary paint reservoir 6 have.

前記塗料溜まり本体部５は、傾斜前面壁部５ｂ、傾斜後面壁部５ａ及び左右の側面壁部５ｃ、５ｄで囲まれた塗料溜まり空間ａ１を形成すると共に、傾斜前面壁部５ｂの上縁ｂ１から垂直下方へ向けて垂下案内面部５ｅを延設したものとなされている。この際、傾斜後面壁部５ａの上縁ｂ１は左右方向ｆ０２の水平直状となされると共に傾斜前面壁部５ｂの上縁ｂ２よりも低くなされていて、塗料溜まり空間ａ１内に流入した塗料液ｔが後方ｆ２外側へ溢流するときに堰として作用する塗料流出個所となされている。   The paint reservoir body 5 forms a paint reservoir space a1 surrounded by the inclined front wall 5b, the inclined rear wall 5a, and the left and right side walls 5c, 5d, and the upper edge b1 of the inclined front wall 5b. The hanging guide surface portion 5e is extended vertically downward. At this time, the upper edge b1 of the inclined rear wall portion 5a has a horizontal straight shape in the left-right direction f02 and is lower than the upper edge b2 of the inclined front wall portion 5b, and the paint liquid that has flowed into the paint reservoir space a1. It is a paint outflow point that acts as a weir when t overflows to the outside of the rear f2.

前記補助塗料溜まり部６は、塗料溜まり本体部５の内方の後方ｆ２側に片寄せて前記補助塗料溜まり部６を位置させてあって、傾斜後面壁部６ａ、傾斜前面壁部６ｂ及び左右の側面壁部６ｃ、６ｄで囲まれ前記塗料溜まり空間ａ１と略同一の左右方向ｆ０２長さとなされ前記塗料溜まり本体部５よりも前後方向ｆ巾を小さくなされた塗料溜まり空間ａ２を形成したものとなされている。この際、傾斜前面壁部６ｂの上縁ｂ３が左右方向ｆ０２の水平直状となされて傾斜後面壁部６ａの上縁ｂ４よりも低くなされ且つ前記塗料溜まり本体部５の傾斜前面壁部５ｂの上縁ｂ２よりも低くなされ、補助塗料溜まり空間ａ２内に流入した塗料液ｔが前方ｆ１外側へ溢流して塗料溜まり本体部６内に供給されるときに堰として作用する塗料供給個所となされる。   The auxiliary paint reservoir portion 6 is shifted toward the inner rear f2 side of the paint reservoir main body portion 5 so that the auxiliary paint reservoir portion 6 is positioned, and the inclined rear wall portion 6a, the inclined front wall portion 6b and the left and right sides are arranged. A paint reservoir space a2 that is surrounded by the side wall portions 6c and 6d and has a length f02 that is substantially the same as the paint reservoir space a1 and that is smaller in width in the front-rear direction than the paint reservoir body 5. Has been made. At this time, the upper edge b3 of the inclined front wall portion 6b is formed in a horizontal straight shape in the left-right direction f02 so as to be lower than the upper edge b4 of the inclined rear surface wall portion 6a and the inclined front wall portion 5b of the paint reservoir main body portion 5 is formed. It is made lower than the upper edge b2, and it becomes a paint supply location that acts as a weir when the paint liquid t flowing into the auxiliary paint reservoir space a2 overflows to the outside of the front f1 and is supplied into the paint reservoir main body 6. .

前記塗料供給口部材７は、補助塗料溜まり本体部５の塗料溜まり空間ａ２内に左右方向ｆ０２に配設された直状の管部材７ａからなり、左右方向ｆ０２長さを塗料溜まり空間ａ２の左右方向ｆ０２長さと略同一となされ、周壁面部７ａの特定個所に左右方向ｆ０２へ長いスリット口７ｂを形成され、供給ライン８ａから管部材７ａの内方に供給された塗料液ｔがスリット口７ｂを通じて塗料溜まり空間ａ２内へ向け左右方向ｆ０２上の任意位置で出来るだけ同一の流量で流出するようになされている。   The paint supply port member 7 is composed of a straight tube member 7a disposed in the left-right direction f02 in the paint reservoir space a2 of the auxiliary paint reservoir main body 5, and the length of the left-right direction f02 is set to the left and right of the paint reservoir space a2. The slit port 7b, which is substantially the same as the length in the direction f02, is formed in a specific portion of the peripheral wall surface portion 7a in the left-right direction f02, and the coating liquid t supplied to the inside of the pipe member 7a from the supply line 8a Through the paint reservoir space a2 and flows out at the same flow rate as much as possible at an arbitrary position in the left-right direction f02.

前記コンベア１は次のようになされているのであって、即ち、前記塗料流出ヘッド２の下方後方ｆ２側に配設された上流側コンベア１ａと、前記塗料流出ヘッド２の下方前方ｆ１側に配設された下流側コンベア１ｂとを備え、上流側コンベア１ａ及び下流側コンベア１ｂのそれぞれのコンベアベルト９の上面を水平状となされ、上流側コンベア１ａのコンベアベルト９上の搬送始端ｐ１に被塗装物ｗを載置すると、該被塗装物ｗが上流側コンベア１ａ及び下流側コンベア１ｂの搬送作動により前方ｆ１へ水平搬送され、最終的に下流側コンベア１ｂの搬送終端ｐ２に到達するものとなされている。   The conveyor 1 is configured as follows: an upstream conveyor 1a disposed on the lower rear f2 side of the paint outflow head 2 and a lower front f1 side of the paint outflow head 2. And a downstream conveyor 1b, and the upper surfaces of the respective conveyor belts 9 of the upstream conveyor 1a and the downstream conveyor 1b are made horizontal, and the transfer start end p1 on the conveyor belt 9 of the upstream conveyor 1a is coated. When the object w is placed, the article w to be coated is horizontally conveyed to the front f1 by the conveying operation of the upstream conveyor 1a and the downstream conveyor 1b, and finally reaches the conveyance terminal p2 of the downstream conveyor 1b. ing.

前記遠赤外線照射装置３及び前記紫外線照射装置４は下流側コンベア１ｂの上方の特定高さに前後配置状に設けられており、前者照射装置３は下流側コンベア１ｂで水平搬送される被塗装物ｗに遠赤外線を照射するものとなされ、後者照射装置４は下流側コンベア１ｂで水平搬送される被塗装物ｗに紫外線を照射するものとなされている。   The far-infrared irradiating device 3 and the ultraviolet irradiating device 4 are arranged in a front-rear arrangement at a specific height above the downstream conveyor 1b, and the former irradiation device 3 is to be coated horizontally on the downstream conveyor 1b. It is assumed that the far-infrared ray is irradiated on w, and the latter irradiation device 4 is configured to irradiate the object to be coated w that is horizontally conveyed by the downstream conveyor 1b with ultraviolet rays.

そして、前記塗料流出ヘッド２の真下には、塗料回収樋１０が左右方向ｆ０２の略水平状に図示しない支持部材を介して架設してあり、また該塗料回収樋１０の下側の床面１１上には塗料回収樋１０に受け入れた塗料液ｔが案内通路１０ａを経て重力作用で流れ込むものとなる塗料収容タンク１２が設置してあり、さらに塗料収容タンク１２内の塗料液ｔを吸引ライン８ｂ及び供給ライン８ａを通じて塗料供給管部材７内に任意な特定大きさの流量で送給するものとした送液ポンプ１３が設けてある。   A paint recovery rod 10 is installed directly below the paint outflow head 2 via a support member (not shown) in a substantially horizontal shape in the left-right direction f02, and a floor surface 11 below the paint recovery rod 10 is provided. Above, a paint storage tank 12 is provided in which the paint liquid t received in the paint recovery tank 10 flows by gravity through the guide passage 10a. Further, the paint liquid t in the paint storage tank 12 is sucked into the suction line 8b. In addition, a liquid feed pump 13 is provided which feeds the paint supply pipe member 7 through the supply line 8a at a flow rate having an arbitrary specific size.

次に上記実施例のフローコーターにより被塗装物ｗである平面視方形状の板状体を塗装する場合の使用例及び各部の作用を説明する。
送液ポンプ１３を作動させると、塗料収容タンク１２内の塗料液ｔが吸引ライン８ｂを通じて送液ポンプ１３内に吸引され、さらに供給ライン８ａを通じて塗料供給管部材７内に適当な大きさの一定流量で送給される。塗料供給管部材７内に到達した塗料液ｔはスリット口７ｂを通じて補助塗料溜まり部６内に後方ｆ２へ向かうように流出されるのであり、このように流出された塗料液ｔは補助塗料溜まり部６の塗料溜まり空間ａ２を満たした後、塗料供給管部材７と補助塗料溜まり部６との間などを経て前方ｆ１へ流れ、傾斜後面壁部６ｂの上縁ｂ３から後方ｆ２側へ溢れ出て塗料溜まり本体部５内に流入する。 Next, an example of use in the case where a planar plate-like plate-like body which is the object to be coated w is painted by the flow coater of the above embodiment and the operation of each part will be described.
When the liquid feed pump 13 is actuated, the paint liquid t in the paint storage tank 12 is sucked into the liquid feed pump 13 through the suction line 8b, and is further fixed to an appropriate size in the paint supply pipe member 7 through the supply line 8a. It is sent at a flow rate. The paint liquid t that has reached the paint supply pipe member 7 flows out into the auxiliary paint reservoir 6 through the slit port 7b in the direction of the rear f2, and the paint liquid t that has flowed out in this way is supplied to the auxiliary paint reservoir 6. 6 fills the paint reservoir space a2, flows between the paint supply pipe member 7 and the auxiliary paint reservoir 6 to the front f1, overflows from the upper edge b3 of the inclined rear wall portion 6b to the rear f2 side. It flows into the paint reservoir main body 5.

この際、塗料供給管部材７のスリット口７ｂから流出された塗料液ｔの流動は塗料溜まり本体部５内に満たされた状態の塗料液ｔに渦などの乱れを生じさせるようになるが、該乱れはスリット口７ｂから流出した塗料液ｔが補助塗料溜まり部６の傾斜前面壁部６ｂの上縁ｂ３に到達するまでに減衰されるものとなり、液溜まり空間ａ２内の塗料液ｔは殆ど乱れのない状態で上縁ｂ３の左右方向ｆ０２全長範囲から左右方向ｆ０２任意位置で均等な流動状態となって塗料溜まり本体部５の塗料溜まり空間ａ１内に流入する。   At this time, the flow of the coating liquid t flowing out from the slit port 7b of the coating material supply pipe member 7 causes turbulence such as vortex in the coating liquid t in a state where the coating liquid main body 5 is filled. The disturbance is attenuated until the paint liquid t flowing out from the slit port 7b reaches the upper edge b3 of the inclined front wall part 6b of the auxiliary paint reservoir part 6, and the paint liquid t in the liquid reservoir space a2 is almost all. In an undisturbed state, the fluid flows into the paint reservoir space a <b> 1 of the paint reservoir main body 5 in a uniform flow state from the full length range of the upper edge b <b> 3 in the left-right direction f <b> 02 at any position in the left-right direction f <b> 02.

塗料溜まり本体部５内の前方ｆ１側の左右方向ｆ０２のほぼ全長範囲に流入した塗料液ｔは塗料溜まり本体部５の塗料溜まり空間ａ１内を満たした後、補助塗料溜まり部６と塗料溜まり本体部５との間などを経て後方ｆ２へ流れ傾斜後面壁部５ａの上縁ｂ１の左右方向ｆ０２全長範囲から後方ｆ２側へ溢れ出て垂直案内面部５ｅに案内されつつ重力作用により落下し、垂直案内面部５ｅの下側でカーテン状となってさらに落下する。この際、補助塗料溜まり部６及び塗料溜まり本体部５はこれらの間を後方ｆ２へ流動する塗料液ｔに存在する乱れを減衰させると共に新たに生じようとする乱れを抑制するのであり、これにより傾斜後面壁部５ａの上縁ｂ１に到達した塗料液ｔの流動は乱れの存在しない極めて斉一な状態となる。   The coating liquid t that has flowed into the substantially full length range in the left-right direction f02 on the front f1 side in the paint reservoir body 5 fills the paint reservoir space a1 of the paint reservoir body 5, and then the auxiliary paint reservoir 6 and the paint reservoir body. Flows to the rear f2 through the space between the upper part b1 and the like, overflows from the full length range of the upper edge b1 of the inclined rear wall part 5a to the rear f2 side, falls down by gravity while being guided by the vertical guide surface part 5e, and vertically Under the guide surface portion 5e, it becomes a curtain and further falls. At this time, the auxiliary paint reservoir 6 and the paint reservoir main body 5 attenuate the disturbance existing in the coating liquid t flowing between them to the rear f2 and suppress the disturbance to be newly generated. The flow of the coating liquid t that has reached the upper edge b1 of the inclined rear surface wall 5a is in an extremely uniform state without any disturbance.

したがって上縁ｂ１から溢れ出る塗料液ｔは該上縁ｂ１の左右方向ｆ０２の全長範囲において同一の前後方向ｆ厚さ及び同一の流速となって溢れ出るようになり、この後、垂直案内面部５ｅの案内作用を受けつつ落下し、垂直案内面部５ｅの下側にカーテン状の流下塗料液ｔ１が形成されるのであり、この際、カーテン状の流下塗料液ｔ１は上縁ｂ１の左右方向ｆ０２長さと略同一の左右方向ｆ０２巾となり、左右方向ｆ０２上の任意位置の前後方向ｆ厚さや下向き流速が同一である状態を安定的に維持される。   Therefore, the coating liquid t overflowing from the upper edge b1 overflows with the same front-rear direction f thickness and the same flow velocity in the entire length range of the upper edge b1 in the left-right direction f02, and thereafter, the vertical guide surface portion 5e. The curtain-like falling coating liquid t1 is formed on the lower side of the vertical guide surface portion 5e. At this time, the curtain-like falling coating liquid t1 has a length f02 in the left-right direction of the upper edge b1. The width in the left-right direction f02 is substantially the same, and the state in which the front-rear direction f thickness and the downward flow velocity at an arbitrary position in the left-right direction f02 are the same is stably maintained.

該カーテン状の流下塗料液ｔ１が上流側コンベア１ａと下流側コンベア１ｂとの間を通じてさらに落下した後、塗料回収樋１０に受け入れられ、その後、重力作用により塗料収容タンク１２内に流入する。このように流入した塗料液ｔは再び送液ポンプ１３で供給ライン８ａに送り出されるものとなり、以後、上述と同様の経路を経て循環される。   The curtain-like falling coating liquid t1 further falls through the space between the upstream conveyor 1a and the downstream conveyor 1b, and is then received by the paint recovery tank 10, and then flows into the paint storage tank 12 by the action of gravity. The paint liquid t flowing in in this way is again sent out to the supply line 8a by the liquid feed pump 13, and thereafter circulated through the same path as described above.

このような作動状態の下で、作業者はコンベア１を始動させて、上流側コンベア１ａの搬送始端ｐ１に板状体ｗを前後方向ｆに対して周面部ｗ１〜ｗ４が４５度傾斜した状態に載置する。
このように載置された板状体ｗは先ず上流側コンベア１ａのコンベアベルト９で水平前方ｆ１へ搬送されて前記カーテン状の流下塗料液ｔ１をくぐり抜け、続いて下流側コンベア１ｂの搬送始端に到達し、この後はそのコンベアベルト９でさらに水平前方ｆ１へ搬送される。 Under such an operating state, the operator starts the conveyor 1 and the peripheral surface portions w1 to w4 are inclined at 45 degrees with respect to the front-rear direction f at the conveyance start end p1 of the upstream conveyor 1a. Placed on.
The plate-like body w placed in this way is first transported to the horizontal front f1 by the conveyor belt 9 of the upstream conveyor 1a to pass through the curtain-like falling paint liquid t1, and then to the transport start end of the downstream conveyor 1b. After that, it is further conveyed by the conveyor belt 9 to the horizontal front f1.

この際、カーテン状の流下塗料液ｔ１は、板状体ｗの前方ｆ１移動の過程で、先ず板状体ｗの前方ｆ１側の周面部ｗ１、ｗ２に衝接してこれに被着し、続いて板状体ｗの上面に前方ｆ１側から順に被着していくのであり、該板状体ｗがカーテン状の流下塗料液ｔ１を通過し終えた時、塗料液ｔは同一厚さで板状体ｗの上面の全面に被着した状態となる。この際、前側の左右の周面部ｗ１、ｗ２は直状であって前後方向ｆに対して４５度傾斜されているため、これら前側左右の周面部ｗ１、ｗ２には塗料液ｔが均等厚さに被着される。またカーテン状の流下塗料液ｔ１は板状体ｗの前方ｆ１移動により前方ｆ１へ引き移動される傾向となるが、該傾向は垂直案内面部５ｅの真下への案内作用により抑制されて板状体ｗに安定的且つ正確に被着されるものとなる。なお、この時点では板状体ｗの後方ｆ２側の周面部ｗ３、ｗ４には塗料液ｔは被着した状態となっていない。   At this time, in the process of moving the front body f1 of the plate-like body w, the curtain-like falling coating liquid t1 first comes into contact with and adheres to the peripheral surface portions w1 and w2 on the front side f1 of the plate-like body w. In this case, the upper surface of the plate-like body w is sequentially applied from the front f1 side. When the plate-like body w has passed through the curtain-like falling coating liquid t1, the coating liquid t has the same thickness. It will be in the state adhered to the whole upper surface of the state body w. At this time, the left and right peripheral surface portions w1 and w2 on the front side are straight and inclined by 45 degrees with respect to the front-rear direction f. Therefore, the coating liquid t has an equal thickness on the front and left peripheral surface portions w1 and w2. To be attached. The curtain-like falling coating liquid t1 tends to be pulled to the front f1 by the front f1 movement of the plate-like body w, and this tendency is suppressed by the guiding action directly below the vertical guide surface portion 5e. It will be deposited stably and accurately on w. At this time, the coating liquid t is not in a state of being applied to the peripheral surface portions w3 and w4 on the rear f2 side of the plate-like body w.

この後、下流側コンベア１ｂが塗料液ｔの被着された板状体ｗをさらに前方ｆ１へ搬送する過程で、遠赤外線照射装置３がこれの下側に到達した板状体ｗの塗料液ｔを加熱して乾燥させ、また紫外線照射装置４がこれの下側に到達した板状体ｗの塗料液ｔを硬化させる。
こうして板状体ｗがコンベア１の搬送終端ｐ２に到達したとき、該板状体ｗは作業者により図示しない作業台上に移動され、該作業台上で板状体ｗに被着されて硬化された状態の塗料液ｔの外表面を平滑な平面となすように研磨すると共に、これに付着した微細なゴミなどを綺麗に除去する。この後、作業者は該板状体ｗをコンベア１の搬送始端ｐ１近傍まで人手などにより搬送し、ここで先の搬送時姿勢に対して前後逆向きとなし、先と同様に、コンベア１の搬送始端ｐ１に載置する。 Thereafter, in the process in which the downstream conveyor 1b further conveys the plate-like body w to which the coating liquid t is applied to the front f1, the coating liquid of the plate-like body w reached by the far-infrared ray irradiation device 3 below this. t is heated and dried, and the ultraviolet irradiation device 4 cures the coating liquid t of the plate-like body w that has reached the lower side thereof.
When the plate-like body w reaches the conveyance end p2 of the conveyor 1, the plate-like body w is moved onto a work table (not shown) by an operator, and is attached to the plate-like body w on the work table and cured. Polishing is performed so that the outer surface of the coating liquid t in a state of smoothing becomes a smooth flat surface, and fine dust and the like adhering to the outer surface are removed cleanly. Thereafter, the operator manually conveys the plate-like body w to the vicinity of the conveyance start end p1 of the conveyor 1, where it is reversed in the front-rear direction with respect to the previous conveyance posture. It is placed on the conveyance start end p1.

これにより該板状体ｗは、先と同様に、上流側コンベア１ａのコンベアベルト９で前方ｆ１へ搬送され、再度、カーテン状の流下塗料液ｔ１を通過するように移動されるのであり、これにより該板状体ｗは先の場合に準じて、その移動方向における前側の左右の周面部ｗ３、ｗ４及び上面全体に塗料液ｔを被着される。この際、板状体ｗの上面には先に被着され研磨により平坦となされた塗料液ｔの上面にさらにもう一度仕上的に塗料液ｔが被着されるものとなるため、板状体ｗの上面に被着された塗料液ｔの外表面の平坦性が向上するのであり、また研磨時に微細なゴミが板状体ｗから除去されるため、板状体ｗ上面に２回目に被着される塗料液ｔにゴミなどが混入し難くなる。したがって板状体ｗの上面及び四方の周面部ｗ１〜ｗ４には塗料液ｔが品質よく被着された状態となる。   As a result, the plate-like body w is conveyed to the front f1 by the conveyor belt 9 of the upstream conveyor 1a and moved again so as to pass the curtain-like falling paint liquid t1, Accordingly, the plate-like body w is coated with the coating liquid t on the front left and right peripheral surface portions w3 and w4 and the entire upper surface in the moving direction in accordance with the previous case. At this time, since the coating liquid t is once again applied to the upper surface of the coating liquid t previously applied to the upper surface of the plate-shaped body w and flattened by polishing, the plate-shaped body w The flatness of the outer surface of the coating liquid t applied to the upper surface of the substrate is improved, and fine dust is removed from the plate-like body w at the time of polishing. It becomes difficult for dust and the like to be mixed into the applied coating liquid t. Therefore, the coating liquid t is in a state of being applied with good quality on the upper surface of the plate-like body w and the peripheral surface portions w1 to w4 on all sides.

上記実施例において、塗料溜まり本体部５内に補助塗料溜まり部６を設けたことは、これを設けない場合に較べると、塗料溜まり空間ａ１を前後方向ｆ断面形状を略同一となされることを条件とするとき、左右方向ｆ０２上の任意位置の前後方向ｆ厚さや下向き流速が同一大きさであるカーテン状の流下塗料液ｔ１が安定的に得られる該流下塗料液ｔ１の左右方向ｆ０２最大巾（これは概ね塗料流出個所ｂ１の左右方向ｆ０２長さに合致した大きさとなる。）を増大させるものとなる。   In the above embodiment, the provision of the auxiliary paint reservoir portion 6 in the paint reservoir main body 5 means that the paint reservoir space a1 has substantially the same cross-sectional shape in the front-rear direction f as compared to the case where it is not provided. When the condition is satisfied, the maximum width of the falling paint liquid t1 in the left-right direction f02 can stably obtain the curtain-like flowing paint liquid t1 having the same size in the front-rear direction f thickness and the downward flow velocity in the left-right direction f02. (This is generally a size that matches the length f02 of the paint outflow portion b1 in the left-right direction.).

出願人が実際に製造した上記実施例のフローコーターで試したところ、補助塗料溜まり部６を設けないで塗料供給管部材７から直接に特定大きさの塗料溜まり本体部５内に流入させる場合には、左右方向ｆ０２上の任意位置の厚さ及び流速が同一である特定のカーテン状の流下塗料液ｔ１が安定的に得られる塗料流出部ｂ１の左右方向ｆ０２の最大長さは凡そ１２００ｍｍ程度であったが、補助塗料溜まり部６を設けて塗料供給管部材７から先ず該補助塗料溜まり部６内に供給し次に該補助塗料溜まり部６から前記特定大きさの塗料溜まり本体部５内に流入させる構成としたときは、塗料溜まり本体部５の左右方向ｆ０２の長さが１６００ｍｍ或いはそれ以上となされても、前記特定のカーテン状の流下塗料液ｔ１は安定的に得られた。   When the applicant actually tested the flow coater of the above-mentioned embodiment, the auxiliary paint reservoir 6 was not provided, but was directly supplied from the paint supply pipe member 7 into the paint reservoir main body 5 of a specific size. The maximum length in the left-right direction f02 of the paint outflow part b1 where a specific curtain-like flowing-down paint liquid t1 having the same thickness and flow velocity in the left-right direction f02 can be stably obtained is about 1200 mm. However, the auxiliary paint reservoir 6 is provided and supplied first from the paint supply pipe member 7 into the auxiliary paint reservoir 6 and then from the auxiliary paint reservoir 6 into the paint reservoir main body 5 of the specific size. When the construction was made to flow, even if the length of the paint reservoir main body 5 in the left-right direction f02 was 1600 mm or more, the specific curtain-like falling paint liquid t1 was stably obtained.

このことは次のことをも意味するのであり、即ち、補助塗料溜まり部６を設けないで塗料供給管部材７から直接に塗料溜まり本体部５内に流入させ且つ、塗料流出個所ｂ１の左右方向ｆ０２長さを例えば１６００ｍｍ程度或いはそれ以上となしたフローコーターにおいて、塗料溜まり本体部５の上縁ｂ１から塗料液ｔが流出してこれの下側に形成されるカーテン状の流下塗料液ｔ１についての前後方向ｆ厚さや下向き流速が不安定となるときであっても、補助塗料溜まり部６を付設することにより、そのカーテン状の流下塗料液ｔ１の前後方向ｆ厚さ及び下向き流速は左右方向ｆ０２の任意位置で安定的に同一となるのである。   This also means the following: That is, the auxiliary paint reservoir portion 6 is not provided, and the paint supply pipe member 7 is allowed to flow directly into the paint reservoir main body portion 5 and the left and right direction of the paint outflow location b1. In a flow coater having a length of f02 of about 1600 mm or more, for example, a curtain-like falling coating liquid t1 is formed on the lower side of the coating liquid main body portion 5 from which the coating liquid t flows out from the upper edge b1. Even when the back-and-forth direction f thickness and the downward flow velocity become unstable, the front-and-rear direction f thickness and the downward flow rate of the curtain-like falling coating liquid t1 are set to the left and right directions by providing the auxiliary paint reservoir 6. This is the same at an arbitrary position of f02.

上記実施例は次のように変形できる。
即ち、上記したカーテン状の流下塗料液ｔ１の左右方向ｆ０２厚さや流速の安定性が損なわれない限りにおいて、補助塗料溜まり部６を塗料溜まり本体部５に対して前後何れかへ片寄せることなく塗料溜まり空間ａ１の前後方向ｆ巾の略中央に位置させる構造となすことも可能であり、また塗料供給管部材７内からスリット口７ｂを通じて補助塗料溜まり部６の塗料溜まり空間ａ２内に塗料液ｔを流出させる際の流出方向を必要に応じて適当に変更して差し支えない。 The above embodiment can be modified as follows.
That is, the auxiliary paint reservoir 6 is not moved to the front or back of the paint reservoir main body 5 as long as the thickness of the curtain-like falling paint liquid t1 and the stability of the flow velocity f02 are not impaired. It is also possible to adopt a structure that is positioned at the approximate center of the width f of the paint reservoir space a1 in the front-rear direction, and the paint liquid enters the paint reservoir space a2 of the auxiliary paint reservoir 6 from the paint supply pipe member 7 through the slit port 7b. The outflow direction at the time of flowing out t may be appropriately changed as necessary.

本発明の一実施例に係るフローコーターの側面図である。It is a side view of the flow coater concerning one example of the present invention. 前記フローコーターの一部側面図である。It is a partial side view of the flow coater. 前記フローコーターの平面視説明図である。It is a plane view explanatory view of the flow coater. 前記フローコーターの一部斜視図である。It is a partial perspective view of the flow coater.

符号の説明Explanation of symbols

５ 塗料溜まり本体部
６ 補助塗料溜まり部
７ 塗料供給口部材
ｂ１ 塗料溜まり本体部の後側の上縁
ｂ３ 補助塗料溜まり部の前側の上縁
ｆ０２ 左右方向
ｔ 塗料液 5 Paint Paint Body 6 Auxiliary Paint Pool 7 Paint Supply Port Member b1 Upper Rear Edge of Paint Pool Body b3 Upper Front Edge of Auxiliary Paint Pool f02 Left-Right Direction t Paint Liquid

Claims (5)

樋状の塗料溜まり本体部内に塗料供給口部材を備え、特定流量で供給される塗料液を該塗料溜まり本体部の長さ方向片側壁上縁からカーテン状に溢流させ、その下方個所で被塗装物を通過させるものとして行われるフローコーターにおいて、前記塗料溜まり本体部内に於ける樋状長さ範囲内へ比較的容積の小さい樋状の補助塗料溜まり部を別途に配置し、該補助塗料溜まり部内に塗料供給口部材を内装させると共に、該塗料供給口部材から塗料液を予め補助塗料溜まり部内へ吐出させ、且つ該塗料液が補助塗料溜まり部の長さ方向片壁面から溢流されて塗料溜まり本体部内へ間接供給されるものとなした構成を特徴とするフローコーター。   A paint supply port member is provided in the bowl-shaped paint reservoir main body, and the paint liquid supplied at a specific flow rate overflows from the upper edge of one side wall in the length direction of the paint reservoir main body in the form of a curtain, and is covered at the lower part. In a flow coater that is used to pass a coated object, a hook-shaped auxiliary paint reservoir portion having a relatively small volume is separately disposed within a hook-like length range in the paint reservoir main body portion, and the auxiliary paint reservoir is provided. The paint supply port member is installed in the interior, the paint liquid is previously discharged from the paint supply port member into the auxiliary paint reservoir, and the paint liquid is overflowed from one longitudinal wall surface of the auxiliary paint reservoir. A flow coater characterized by a configuration that is indirectly supplied into the reservoir body. 補助塗料溜まり部内に供給された塗料液が塗料溜まり本体部内へ溢流する個所と、塗料溜まり本体部内の塗料液の溢流個所とが相反する位置関係の構成になしたことを特徴とする請求項１記載のフローコーター。   The location where the location where the paint liquid supplied into the auxiliary paint reservoir overflows into the paint reservoir main body and the location where the paint fluid overflows within the paint reservoir main body is in conflict is formed. Item 3. The flow coater according to Item 1. 塗料溜まり部を塗料溜まり本体部と凡そ同形状で且つ同寸法の構成となしたことを特徴とする請求項１又は２記載のフローコーター。   3. A flow coater according to claim 1 or 2, wherein the paint reservoir portion has substantially the same shape and dimensions as the paint reservoir body portion. 補助塗料溜まり部内へ塗料液を供給させる塗料供給口部材のスリット口を、補助塗料溜まり部内の塗料液が塗料溜まり本体部内へ溢流する側と逆向きに位置させたことを特徴とする請求項１、２又は３記載のフローコーター。   The slit opening of the paint supply port member for supplying the paint liquid into the auxiliary paint reservoir part is positioned opposite to the side where the paint liquid in the auxiliary paint reservoir part overflows into the paint reservoir body part. The flow coater according to 1, 2 or 3. 樋状の塗料溜まり本体部の左右方向長さを凡そ１６００ｍｍ程度以上となしたことを特徴とする請求項１〜４の何れかに記載のフローコーター。   The flow coater according to any one of claims 1 to 4, wherein the length of the bowl-shaped paint reservoir main body portion in the left-right direction is about 1600 mm or more.

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