JPH09173947A - Coating material tank - Google Patents
Coating material tankInfo
- Publication number
- JPH09173947A JPH09173947A JP33493895A JP33493895A JPH09173947A JP H09173947 A JPH09173947 A JP H09173947A JP 33493895 A JP33493895 A JP 33493895A JP 33493895 A JP33493895 A JP 33493895A JP H09173947 A JPH09173947 A JP H09173947A
- Authority
- JP
- Japan
- Prior art keywords
- paint
- tank
- water
- coating
- tank body
- 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
【０００１】[0001]
【発明の属する技術分野】本発明は、水性塗料を貯蔵す
る塗料タンクに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paint tank for storing water-based paint.
【０００２】[0002]
【従来の技術】自動車製造工場では、完成した自動車を
出荷する場合に、自動車の塗膜を雨水、鉄粉、花粉、鳥
糞等の汚染から保護し、品質の低下を防ぐ目的で塗膜表
面上に保護膜を形成している。2. Description of the Related Art In an automobile manufacturing plant, when a completed automobile is shipped, the coating film of the automobile is protected from contamination of rainwater, iron powder, pollen, bird droppings, etc. to prevent deterioration of quality. A protective film is formed on top.
【０００３】保護膜の形成には水溶性アクリルタイプの
水性材料や油脂系合成ワックスタイプ等のワックス或い
は炭酸カルシウム系パウダを塗膜表面に塗布する方法や
塩化ビニル系樹脂製のフィルムを塗膜表面に貼設する方
法が広く行われている。ワックス塗布により形成される
保護膜は、鉄粉や花粉に対する保護効果に劣り、かつ自
動車の塗膜上に塗布後約３〜４ケ月と保護効果の持続期
間が短く、また出荷先においてワックス除去作業の負荷
が大きく、アンモニア系の薬剤或いはケロシン等の溶液
を使用して除去することから環境安全性に劣り、更に排
水処理のための設備を要する等の不具合がある。For forming the protective film, a water-soluble acrylic type water-based material, a wax such as an oil-based synthetic wax type, or a calcium carbonate-based powder is applied to the surface of the coating film, or a film made of a vinyl chloride-based resin is applied to the surface of the coating film. The method of pasting on is widely used. The protective film formed by applying wax is inferior in the protective effect against iron powder and pollen, and the duration of the protective effect is short, about 3 to 4 months after being applied on the coating film of automobiles, and the wax removing work at the shipping destination. Has a large load and is inferior in environmental safety because it is removed by using an ammonia-based chemical or a solution such as kerosene. Further, there is a problem that equipment for wastewater treatment is required.
【０００４】またパウダ塗布による保護膜は、鉄粉、花
粉、雨水等の降り懸かる物に対する保護効果は期待でき
るものの、接触等による傷に対する保護効果に劣り、か
つ風雨により塗布したパウダが消失することから保護効
果の持続期間も約１〜３ケ月と短く、更に保護膜を除去
する際には、車体の隙間、例えばフロントフェンダとフ
ロントフード等の間に付着した保護膜の除去作業に困難
を招き、かつ砂濾過設備等の大がかりな後処理設備を有
する等の不具合がある。Further, although the protective film applied by applying powder can be expected to have an effect of protecting iron powder, pollen, rainwater, and other suspended objects, it is inferior in the effect of protecting against scratches caused by contact, and the applied powder disappears due to wind and rain. Therefore, the duration of the protective effect is as short as about 1 to 3 months, and when removing the protective film, it is difficult to remove the protective film attached between the car body, for example, between the front fender and the front hood. In addition, there are problems such as having large-scale post-treatment equipment such as sand filtration equipment.
【０００５】これらワックスやパウダの塗布による保護
層の形成は、一般に塗装ブース内でのスプレーによる吹
き付けによって行われることから、塗着効率が約１０〜
３０％であって、残りのワックスやパウダ等は、塗装ブ
ース下に落下して循環水によってブース外に搬出されて
廃棄処分されることから歩留りが悪く、またワックスや
パウダ等がスプレー噴霧されることから塗装ブース内が
ミストで汚れ、かつ循環水の循環及び給排気装置の作動
に伴う騒音発生等による作業環境の悪化を招く等の不具
合がある。The formation of the protective layer by coating these waxes and powders is generally carried out by spraying in a coating booth, so that the coating efficiency is about 10 to 10.
The remaining wax and powder are 30%, and the yield is poor because the remaining wax, powder, etc. fall under the coating booth and are carried out by the circulating water to the outside of the booth for disposal, and the wax, powder, etc. are spray-sprayed. Therefore, there is a problem that the inside of the coating booth is contaminated with mist, and that the working environment is deteriorated due to noise generation due to the circulation of circulating water and the operation of the air supply / exhaust device.
【０００６】一方フィルムの貼着による方法にあって
は、複雑な自動車の形状に沿ってフィルムを張設する作
業には負荷が大きく、万一張設したフィルムと塗膜との
間に隙間が生じると、この隙間に雨水等が浸入して塗膜
の膨潤が発生するおそれがあり、フィルムを塗膜表面か
ら単に剥がすことにより保護膜の除去が行え、保護膜の
除去作業性に優れるものの、除去後のフィルムを処理す
るための焼却設備等を要する。On the other hand, in the method of sticking the film, the work of stretching the film along a complicated automobile shape is heavy, and a gap is created between the stretched film and the coating film. When it occurs, rainwater or the like may enter this gap to cause swelling of the coating film, and the protective film can be removed by simply peeling off the film from the coating surface, although the workability of removing the protective film is excellent, An incineration facility for treating the removed film is required.
【０００７】この対策として、例えば特開平７−８０３
９９号公報に開示されるように、洗浄水切りされた自動
車の塗膜表面に剥離可能な水性塗料を刷毛塗り或いはロ
ーラ塗り等により塗布し、しかる後乾燥せしめて剥離可
能な保護膜を形成する方法が提案されている。As a countermeasure against this, for example, Japanese Patent Laid-Open No. 7-803
As disclosed in Japanese Patent Laid-Open No. 99-99, a method of forming a peelable protective film by applying a peelable water-based paint to the surface of a coating film of an automobile that has been drained by washing by brush coating, roller coating or the like, and then drying. Is proposed.
【０００８】このような水性塗料を自動車の塗膜表面に
塗布する際には、一般にドラム缶等の塗料供給源によっ
て搬入された塗料を一旦塗料タンクに貯蔵し、塗料タン
ク内に貯蔵された塗料をポンプ等によって塗装機、例え
ばローラ刷毛に圧送して自動車の塗膜表面上に塗布す
る。When such a water-based paint is applied to the coating film surface of an automobile, the paint carried in by a paint supply source such as a drum can is temporarily stored in a paint tank, and the paint stored in the paint tank is stored in the paint tank. A pump or the like is used to apply pressure to a coating machine, such as a roller brush, to apply the coating on the coating surface of an automobile.
【０００９】この塗料タンク内に貯蔵される塗料は、塗
料中に含有する顔料が貯蔵中に沈降して凝結するいわゆ
るケーキングの発生や、塗料の使用や補給に伴う塗料液
面の上下動により塗料タンクの側壁内面に塗料の付着及
び乾燥が繰返され、側壁内面に塗料が半固化したいわゆ
る皮張りが発生し、これが側壁内面から剥離して塗料中
に混入することがある。The coating material stored in the coating material tank is generated by so-called caking, in which the pigment contained in the coating material settles and coagulates during storage, and the liquid surface moves up and down as the coating material is used or replenished. The adhesion and drying of the paint are repeated on the inner surface of the side wall of the tank, and so-called skinning occurs when the paint is semi-solidified on the inner surface of the side wall. This may peel off from the inner surface of the side wall and be mixed into the paint.
【００１０】塗料中に半固化状態の皮張り片が混入する
と、皮張り片が半固化状態であることからフィルタや塗
装機等の目詰まり等の原因となり、円滑な塗布作業が妨
害される。When a semi-solidified skin covering piece is mixed in the paint, the skin covering piece is in a semi-solidified state, which may cause clogging of a filter, a coating machine or the like, and hinder smooth application work.
【００１１】皮張り発生を回避する対策として実開昭６
２−１３０７６７号公報に開示され、かつ図５に示す塗
料タンクが提案されている。この塗料タンク１００は、
タンク本体１０１の上端部外周に設けられて上端が開放
する環状のオーバフロー槽１０２と、オーバフロー槽１
０２の外側壁１０３の上端縁に固設された蓋１０４とを
具備している。蓋１０４の中央部にはアジテータ１０５
が装着され、その回転軸１０６は蓋１０４に開口する挿
通孔を貫通して先端部はタンク本体１０１の底部付近ま
で延伸して先端に回転羽根１０７が固設されている。As a measure for avoiding the occurrence of skinning, an actual exploitation 6
A paint tank disclosed in JP-A-2-130767 and shown in FIG. 5 has been proposed. This paint tank 100
An annular overflow tank 102, which is provided on the outer periphery of the upper end of the tank body 101 and has an open upper end, and an overflow tank 1
No. 02 has a lid 104 fixed to the upper edge of the outer wall 103. An agitator 105 is provided at the center of the lid 104.
The rotary shaft 106 penetrates through an insertion hole opened in the lid 104, the tip extends to the vicinity of the bottom of the tank body 101, and the rotary blade 107 is fixed to the tip.
【００１２】タンク本体１０１の底部には塗装機へ塗料
を供給するメイン配管１０８と循環配管１０９とが接続
され、オーバフロー槽１０２内には塗料供給源から塗料
を供給する補給配管１１０及び塗装機側で余剰になった
塗料を塗料タンク１００内に戻すための戻り配管１１
１、１１２がフィルタ１１３を貫通して開口している。A main pipe 108 and a circulation pipe 109 for supplying paint to the coater are connected to the bottom of the tank body 101, and a supply pipe 110 for supplying paint from the paint supply source and a coater side are provided in the overflow tank 102. Return pipe 11 for returning the excess paint in the paint tank 100
1, 112 penetrate the filter 113 and are opened.
【００１３】そして補給配管１１０から補給される塗料
及び戻り配管１１１、１１２を介して戻る余剰の塗料は
一旦オーバフロー槽１０２内に流入し、オーバフロー槽
１０２の内側壁の上端全周から溢れ出し、タンク本体１
０１の側壁１０１ａの内面を伝って塗料の液面Ｌまで流
下することによってタンク本体１０１の側壁１０１ａの
内面を流下する塗料によって常時濡らして側壁１０１ａ
の内面に付着する塗料の乾燥を防止して皮張りの発生を
防止している。Then, the paint replenished from the replenishing pipe 110 and the surplus paint returning via the return pipes 111 and 112 once flow into the overflow tank 102 and overflow from the entire upper end of the inner wall of the overflow tank 102 to the tank. Body 1
01 flowing down to the liquid level L of the coating material along the inner surface of the side wall 101a, so that the inner surface of the side wall 101a of the tank main body 101 is always wetted by the flowing coating material.
The paint that adheres to the inner surface of the is prevented from drying and the occurrence of skinning is prevented.
【００１４】[0014]
【発明が解決しようとする課題】上記実開昭６２−１３
０７６７号公報に開示される塗料タンク１００による
と、補給配管１１０及び戻り配管１１１、１１２から供
給される塗料はオーバフロー槽１０２内に流入し、オー
バフロー槽１０２からタンク本体１０１の側壁１０１ａ
の内面に沿って流下することから側壁１０１ａの内面上
での塗料の乾燥を防げ、側壁内面上における皮張りの発
生は防止できる。DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention
According to the paint tank 100 disclosed in Japanese Patent No. 0767, the paint supplied from the replenishment pipe 110 and the return pipes 111 and 112 flows into the overflow tank 102, and the side wall 101a of the tank main body 101 from the overflow tank 102.
Since it flows down along the inner surface of the side wall, it is possible to prevent the coating material from drying on the inner surface of the side wall 101a, and to prevent the occurrence of skinning on the inner surface of the side wall.
【００１５】しかしタンク本体１０１内に貯蔵される塗
料の液面Ｌは常に空気と接触し、かつタンク１００内と
外部とがアジテータ１０５の回転軸１０６と蓋１０４に
開口する回転軸用挿通孔との間に生じる隙間によって連
通され、タンク１００内の湿度保持が困難であることに
起因して塗料の液面Ｌが乾燥して皮張りが発生するおそ
れがあり、このためタンク本体１０１内の塗料を常時或
いは定期的にアジテータ１０５によって撹拌する必要が
ある。塗料の撹拌に伴って塗料内に気泡が混入して塗布
した塗料内に気泡が残存して均一な保護膜形成が困難に
なり自動車の塗膜保護が充分に達成されず品質の低下を
誘発し、かつタンク本体１０１にオーバフロー槽１０２
を設け、更にアジテータ１０５を要することから塗料タ
ンク１００の大型化及び複雑化を招く等の不具合があ
る。However, the liquid level L of the paint stored in the tank main body 101 is always in contact with air, and the inside and outside of the tank 100 are the rotary shaft 106 of the agitator 105 and the rotary shaft insertion hole opened to the lid 104. There is a risk that the liquid level L of the paint will be dried and skinning will occur due to the difficulty of keeping the humidity in the tank 100 because of the communication between the paints in the tank main body 101. It is necessary to constantly or periodically stir the agitator 105. As the paint stirs, air bubbles are mixed into the paint and the air bubbles remain in the applied paint, making it difficult to form a uniform protective film, which does not achieve sufficient protection of the automobile's coating film and induces deterioration in quality. And the tank body 101 has an overflow tank 102
However, since the agitator 105 is required, the paint tank 100 becomes large and complicated.
【００１６】従って、本発明の目的は皮張りの混入のお
それがない高品質の塗料貯蔵が確保でき、かつ塗料タン
クの小型化及び構成の簡素化が得られる塗料タンクを提
供することにある。Therefore, it is an object of the present invention to provide a paint tank which can secure a high-quality paint storage without the risk of skin uptake, and can achieve a downsizing of the paint tank and a simplified structure.
【００１７】[0017]
【課題を解決するための手段】上記目的を達成する塗料
タンクは、水性塗料を貯蔵する貯蔵するタンク本体と、
タンク本体を密閉的に閉鎖する蓋と、タンク本体内に貯
蔵される水性塗料内に水性塗料を流入する配管とを有す
ることを特徴とするものである。A paint tank that achieves the above object comprises a tank main body for storing water-based paint,
It is characterized in that it has a lid for hermetically closing the tank body, and a pipe for introducing the water-based paint into the water-based paint stored in the tank body.
【００１８】[0018]
【発明の実施の形態】以下、本発明における塗料タンク
の一実施の形態を自動車の塗膜表面に保護膜を形成する
工程に用いられる塗布装置に適用した場合を例に図１乃
至図４によって説明する。BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of a paint tank according to the present invention is applied to a coating apparatus used in a process of forming a protective film on a coating film surface of an automobile by way of example with reference to FIGS. explain.
【００１９】保護膜を形成する工程は、図１に示すよう
に、洗浄工程Ａ、水切工程Ｂ、マスキング工程Ｃ、塗布
工程Ｄ、仕上塗布工程Ｅ及び乾燥工程Ｆを有している。As shown in FIG. 1, the step of forming a protective film includes a washing step A, a water draining step B, a masking step C, a coating step D, a finish coating step E and a drying step F.
【００２０】保護膜を形成すべき自動車Ｗは、洗浄工程
Ａに搬入され、車体全体を回転ブラシを使用するシャワ
ー式洗車装置により洗浄して塗膜表面に付着した雨水や
塵埃等を除去する。寒冷期には塗膜表面に付着した水滴
の凍結により塗膜表面に傷を付けるおそれがあることか
ら例えば３０〜５０℃の温水を用いることが好ましい。
洗浄工程Ａで洗浄された自動車Ｗの塗膜を、続く水切工
程Ｂにおいて約３０〜７０℃の温風によるエアブローに
より塗膜表面に残存する洗浄水を除去して乾燥させる。
洗浄工程Ａに使用される温水と水切工程Ｂで使用される
温風によるエアブローにより後工程である塗布工程Ｄに
おける水性塗料の塗布を良好にするため自動車の表面温
度を適切に保持できる。表面温度は塗料の成膜性からす
ると１５℃以上、望ましくは２０〜３０℃である。The automobile W on which a protective film is to be formed is carried into the washing step A, and the entire vehicle body is washed by a shower type car washing device using a rotating brush to remove rainwater, dust and the like adhering to the coating film surface. In the cold season, it is preferable to use hot water at 30 to 50 ° C., for example, because water droplets adhering to the surface of the coating film may be damaged by freezing.
In the subsequent draining step B, the coating film of the automobile W washed in the cleaning step A is dried by removing the cleaning water remaining on the coating surface by air blowing with warm air of about 30 to 70 ° C.
The surface temperature of the automobile can be appropriately maintained because the application of the water-based coating material in the coating step D, which is a subsequent step, is made good by the air blow using the warm water used in the cleaning step A and the warm air used in the draining step B. The surface temperature is 15 ° C. or higher, preferably 20 to 30 ° C. in view of the film forming property of the coating material.
【００２１】洗浄工程Ａ及び水切工程Ｂにおいて洗浄水
切り乾燥された自動車は次のマスキング工程Ｃで水性塗
料を塗布する塗布範囲と非塗布範囲とを仕切るためのマ
スキングテープを貼着し、かつエンジンフードに開口す
るインテークダクトやその他塗布範囲内にある樹脂部品
等の非塗布部品をカバー等の載置により被覆する。In the washing process A and the draining process B, the automobile which has been washed and drained and dried is attached with a masking tape for partitioning the coated area and the non-coated area to which the water-based paint is applied in the next masking step C, and the engine hood. The non-applied parts such as the intake duct opening to the other side and other resin parts within the application range are covered by placing a cover or the like.
【００２２】続く塗布工程Ｄにおいて、予めマスキング
工程Ｃで区画された塗布範囲を後述する塗布装置のロー
ラ刷毛によりアクリルエマルジョンを主成分とした水性
塗料（例えば関西ペイント社製ラップガードＬ）を塗布
する。In the subsequent coating step D, an aqueous coating containing acrylic emulsion as a main component (for example, Wrapguard L manufactured by Kansai Paint Co., Ltd.) is applied to a coating range previously defined in the masking step C by a roller brush of a coating device described later. .
【００２３】次の仕上塗布工程Ｅでは、前記マスキング
工程Ｃで貼着したマスキングテープの剥離除去及びカバ
ー等を除去し、かつ塗布範囲の細部の未塗布部分を刷毛
或いは小型のローラ刷毛を用いて水性塗料を塗布仕上げ
する。なお、マスキング工程Ｃ、塗布工程Ｄ及び仕上塗
布工程Ｅの各工程は塗装ブース内で行われる。In the next finish coating step E, the masking tape adhered in the masking step C is peeled off and the cover and the like are removed, and the uncoated portion of the application range is brushed or a small roller brush is used. Apply water-based paint to finish. The masking process C, the coating process D, and the finish coating process E are performed in a coating booth.
【００２４】続く乾燥工程Ｆにおいて赤外線乾燥炉を用
いて約３０〜９０秒間赤外線照射により塗布された水性
塗料の内部からの乾燥を促進させ、続いて熱風乾燥炉を
用いて被塗装物全体を均一に加熱して水性塗料を乾燥さ
せて保護膜を形成する。熱風乾燥炉としては水性塗料の
成膜性、自動車の各種電装品等の付属部品保護の観点か
ら乾燥温度が５０〜７０℃で風速が毎分０．５〜２ｍの
条件下で約２〜１０分間乾燥せしめることが好ましい。In the subsequent drying step F, an infrared drying furnace is used for about 30 to 90 seconds to accelerate the drying of the water-based coating applied from the inside by infrared irradiation, and then a hot air drying furnace is used to uniformly coat the entire article to be coated. Then, the water-based paint is dried by heating to form a protective film. As a hot-air drying oven, from the viewpoint of film-forming property of water-based paint and protection of accessories such as various electric components of automobiles, the drying temperature is about 50 to 70 ° C. and the wind speed is about 2 to 10 at a speed of 0.5 to 2 m / min. It is preferable to dry for a minute.
【００２５】塗布工程Ｄで使用される塗布装置は塗料タ
ンク１を有し、塗料タンク１は図２に要部断面側面図
を、図３に図２のＡ−Ａ線断面図を示すように、上方が
開放した有底円筒状のタンク本体２と、タンク本体２の
底部２ａの近傍に張設されたスクリーンメッシュ３と、
タンク本体２の側壁２ｂの上端に固設されて、タンク本
体２を密閉する蓋４とを有している。The coating apparatus used in the coating step D has a paint tank 1. The paint tank 1 is shown in FIG. 2 which is a sectional side view of a main part and FIG. 3 is a sectional view taken along line AA of FIG. A bottomed cylindrical tank body 2 having an open upper side, and a screen mesh 3 stretched near the bottom portion 2a of the tank body 2,
The tank main body 2 has a lid 4 fixed to the upper end of the side wall 2b and sealing the tank main body 2.
【００２６】タンク本体２の側壁２ｂの中間高さに位置
し互に異なる高さで補給配管１１、第１戻り配管１２、
第２戻り配管１３が側壁２ｂを貫通して設けられ、補給
配管１１及び第１戻り配管１２はタンク本体２内におい
て側壁２ｂに沿って周方向に折曲するとともに第２戻り
配管１３はタンク本体２の中心方向に延伸し、補給配管
１１、第１戻り配管１２及び第２戻り配管１３の各先端
１１ａ、１２ａ、１３ａはタンク本体２内に開口してい
る。更にタンク本体２の底部２ａには排出管１４の一端
１４ａが接続されている。The replenishing pipe 11, the first return pipe 12 are located at intermediate heights of the side wall 2b of the tank body 2 and have different heights.
A second return pipe 13 is provided penetrating the side wall 2b, and the supply pipe 11 and the first return pipe 12 are bent in the tank body 2 in the circumferential direction along the side wall 2b, and the second return pipe 13 is formed in the tank body. The tip ends 11a, 12a, 13a of the replenishment pipe 11, the first return pipe 12 and the second return pipe 13 are opened in the tank body 2 and extend in the center direction of 2. Further, one end 14a of the discharge pipe 14 is connected to the bottom portion 2a of the tank body 2.
【００２７】このように形成された塗料タンク１は、第
４図に示すように塗布装置１０に設けられる。塗布装置
１０において、一端がドラム缶等の塗料供給源７に挿入
された補給配管１１はバルブ２１、三方管継手１７、補
給ポンプ３１及びバルブ２２を経由して塗料ンク１内に
開口している。The paint tank 1 thus formed is provided in the coating device 10 as shown in FIG. In the coating device 10, one end of a replenishment pipe 11 inserted into a paint supply source 7 such as a drum can opens into the paint tank 1 via a valve 21, a three-way pipe joint 17, a replenishment pump 31 and a valve 22.
【００２８】塗料タンク本体２の底部２ａに接続される
排出管１４の他端に三方管継手１８が設けられ、三方管
継手１８の一端は循環配管１５及びバルブ２３を介して
前記補給管１１に設けられる三方管継手１７に接続され
る。A three-way pipe joint 18 is provided at the other end of the discharge pipe 14 connected to the bottom portion 2a of the paint tank body 2, and one end of the three-way pipe joint 18 is connected to the supply pipe 11 through a circulation pipe 15 and a valve 23. It is connected to the provided three-way pipe joint 17.
【００２９】また排出管１４に接続する三方管継手１８
の他端にはメイン配管１６の一端が接続され、他端は順
次バルブ２４、フィルタ３３、３４、バルブ２５、圧送
ポンプ３２、バルブ２６、三方管継手１９、フィルタ３
５及び三方管継手２０を介して塗装ブース内の塗装機
８、例えばローラ刷毛に接続されている。A three-way pipe joint 18 connected to the discharge pipe 14
The other end of the main pipe 16 is connected to one end, and the other end is sequentially provided with the valve 24, the filters 33 and 34, the valve 25, the pressure pump 32, the valve 26, the three-way pipe joint 19, and the filter 3.
5 and the three-way pipe joint 20 are connected to the coating machine 8 in the coating booth, for example, a roller brush.
【００３０】メイン配管１６に接続する三方管継手２０
及び１９には塗装機側からの余剰塗料を塗料タンク１に
戻すための第１、第２の戻り配管１２、１３が各々接続
され、第１、第２の戻り配管１２、１３は各々バルブ２
７及び２８を介して塗料タンク１内に開口している。Three-way pipe joint 20 connected to the main pipe 16
1 and 2 are connected to first and second return pipes 12 and 13 for returning excess paint from the coating machine side to the paint tank 1, and the first and second return pipes 12 and 13 are connected to the valve 2 respectively.
It opens into the paint tank 1 through 7 and 28.
【００３１】次に塗料タンク１を含む塗布装置１０の作
用について説明する。Next, the operation of the coating device 10 including the paint tank 1 will be described.
【００３２】塗料タンク１内に貯蔵された水性塗料Ｐ
は、圧送ポンプ３２により排出管１４、メイン配管１６
を介して塗装機８に供給され塗装機８によって自動車の
塗膜上に塗布される。塗装機８側で余剰となった塗料は
第１戻り配管１２及び第２戻り配管１３を経由して塗料
タンク１内に戻される。第１戻り配管１２及び第２戻り
配管１３の一方に目詰り等の不都合が発生した場合でも
他方の戻り配管により補完して塗布作業の中断を回避し
得る。Water-based paint P stored in paint tank 1
Is the discharge pipe 14 and the main pipe 16 by the pressure pump 32.
And is applied to the coating film of the automobile by the coating machine 8. The excess paint on the coating machine 8 side is returned to the paint tank 1 via the first return pipe 12 and the second return pipe 13. Even if a problem such as clogging occurs in one of the first return pipe 12 and the second return pipe 13, the other return pipe can be supplemented to avoid interruption of the coating operation.
【００３３】塗料の使用により塗料タンク１の塗料Ｐの
液面Ｌが予め設定された下限値まで降下すると補給配管
１１に設けたバルブ２１を開放し、かつ循環配管１５に
設けたバルブ２３を閉じて補給ポンプ３１の作動により
の塗料供給源７内の塗料が補給配管１１を介して塗料タ
ンク１内に補給され、液面Ｌが予め設定された上限値に
達すると、補給配管１１に設けたバルブ２１を閉じ、か
つ循環配管１５に設けたバルブ２３を開放して補給が終
る。When the liquid level L of the paint P in the paint tank 1 drops to a preset lower limit due to the use of paint, the valve 21 provided in the supply pipe 11 is opened and the valve 23 provided in the circulation pipe 15 is closed. When the paint in the paint supply source 7 is supplied to the paint tank 1 through the supply pipe 11 by the operation of the supply pump 31 and the liquid level L reaches a preset upper limit value, the supply pipe 11 is provided. The valve 21 is closed and the valve 23 provided in the circulation pipe 15 is opened to complete the replenishment.
【００３４】このように塗料タンク１内の塗料Ｐの液面
Ｌは、設定された上限値と下限値との間を間欠的に変動
せしめられる。しかし、タンク本体２の上端は蓋４によ
り密閉的に閉鎖されることから、タンク１内の塗料Ｐの
上方に位置する空間内は過度に乾燥することなく、塗料
Ｐに含有する水分の蒸発等により湿度略１００％の加湿
状態に保持され、液面Ｌより上方の側壁２ｂの内面に付
着残存する塗料及び液面Ｌにおける塗料の乾燥が回避さ
れて側壁２ｂの内面及び液面Ｌでの塗料Ｐの半固形化、
即ち皮張りの発生が回避される。As described above, the liquid level L of the paint P in the paint tank 1 is intermittently changed between the set upper limit value and the set lower limit value. However, since the upper end of the tank main body 2 is hermetically closed by the lid 4, the space above the paint P in the tank 1 is not excessively dried, and the water contained in the paint P evaporates. Due to this, the paint that is kept in a humidified state with a humidity of approximately 100% and that remains on the inner surface of the side wall 2b above the liquid level L and the paint on the liquid level L is avoided, and the paint on the inner surface of the side wall 2b and the liquid level L is avoided. Semi-solidification of P,
That is, the occurrence of skinning is avoided.
【００３５】一方塗布作業中における塗料タンク１内の
塗料Ｐは、第１戻り配管１２の先端１２ａから側壁２ｂ
に沿って流入する塗料及び第２戻り配管１３の先端１３
ａからタンク本体２の中心方向に流入する塗料によって
撹拌される一方、補給配管１１に設けられたバルブ２１
は閉じられ、かつ循環配管１５に設けられたバルブ２３
を開放して塗料タンク１から排出管１４、循環配管１
５、補給配管１１を経由して塗料タンク１に至る循環路
が形成され、補給ポンプ３１を作動せしめることにより
塗料タンク１内の塗料Ｐを循環させ、補給配管１１の先
端１１ａから側壁２ｂに沿って流入する塗料によって常
時緩やかに撹拌され、塗料中に含有する顔料の沈降によ
る凝結、いわゆるケーキングの発生が防止できる。On the other hand, the coating material P in the coating material tank 1 during the coating operation is from the tip 12a of the first return pipe 12 to the side wall 2b.
And the tip 13 of the second return pipe 13 flowing in along
The valve 21 provided in the replenishment pipe 11 while being stirred by the paint flowing from the a toward the center of the tank body 2.
Is closed and the valve 23 provided in the circulation pipe 15
Open the paint tank 1 to discharge pipe 14, circulation pipe 1
5. A circulation path is formed to the paint tank 1 via the supply pipe 11, and the paint P in the paint tank 1 is circulated by operating the supply pump 31 to extend from the tip 11a of the supply pipe 11 to the side wall 2b. It is always gently stirred by the paint that flows in, and it is possible to prevent the occurrence of coagulation, which is so-called caking, due to the sedimentation of the pigment contained in the paint.
【００３６】以上説明した本実施の形態における塗料タ
ンク１によると、水性塗料Ｐを貯蔵するタンク本体２の
上部を蓋４により密閉することから、タンク本体１内の
上方の空間が、水性塗料Ｐに含有する水分の蒸発によっ
て加湿状態に保持され、塗料液面Ｌより上方の側面２ｂ
内面に付着する塗料及び液面Ｌにおける塗料の乾燥が回
避されて皮張りの発生が防止され、かつ供給配管１１、
第１及び第２の戻り配管１２、１３からタンク１内に流
入する塗料によりタンク１内の塗料Ｐが撹拌されて顔料
の沈降に伴うケーキングの発生が防止され、皮張りやケ
ーキングの混入がない均一な塗料の貯蔵が可能になり、
かつオーバーフロー槽やアジデータが不要になることか
ら構成の簡素化及び小型化が図れる。According to the paint tank 1 of the present embodiment described above, the upper portion of the tank body 2 for storing the water-based paint P is closed by the lid 4, so that the space above the tank body 1 is the water-based paint P. The side surface 2b above the coating liquid surface L is kept in a humidified state by evaporation of water contained in
The paint adhering to the inner surface and the paint on the liquid surface L are prevented from being dried, skinning is prevented from occurring, and the supply pipe 11,
The paint P in the tank 1 is agitated by the paint flowing into the tank 1 through the first and second return pipes 12 and 13, and the occurrence of caking due to the sedimentation of the pigment is prevented, and there is no skinning or mixing of caking. It enables uniform paint storage,
Moreover, since the overflow tank and the agitator are not necessary, the structure can be simplified and downsized.
【００３７】[0037]
【発明の効果】以上説明した本発明の塗料タンクによる
と、水性塗料を貯蔵するタンク本体を蓋により密閉し、
かつタンク本体内に配管から流入する塗料によりタンク
内の塗料を撹拌する簡単な構成にもかかわらず、皮張り
やケーキングの混入がない均一な塗料の貯蔵が可能にな
り、タンク構成の簡素化及び小型化が得られる等特有の
効果を有し、水性塗料を用いる技術分野に貢献するとこ
ろ大なるものである。According to the paint tank of the present invention described above, the tank body for storing the water-based paint is sealed with the lid,
Moreover, despite the simple structure in which the paint in the tank is agitated by the paint flowing into the tank body from the pipe, it is possible to store the paint uniformly without skinning or caking, thus simplifying the tank structure and It has unique effects such as miniaturization, and is a major contribution to the technical field of using water-based paints.
【図１】本発明における塗料タンクの一実施の形態を説
明する塗膜表面に保護膜を形成するための工程図であ
る。FIG. 1 is a process chart for forming a protective film on the surface of a coating film for explaining an embodiment of a paint tank according to the present invention.
【図２】塗料タンクの要部断面側面図である。FIG. 2 is a side sectional view of a main part of a paint tank.
【図３】図２のＡ−Ａ線要部断面図である。FIG. 3 is a sectional view of a main part taken along line AA of FIG. 2;
【図４】塗料タンクが用いられる塗装装置の説明図であ
る。FIG. 4 is an explanatory diagram of a coating device using a paint tank.
【図５】従来の塗料タンクの説明図である。FIG. 5 is an explanatory view of a conventional paint tank.
１ 塗料タンク ２ タンク本体 ４ 蓋 １１ 補給配管 １２ 第１戻し配管 １３ 第２戻し配管 Ｐ 水性塗料 Ｌ 液面 1 Paint Tank 2 Tank Body 4 Lid 11 Supply Pipe 12 First Return Pipe 13 Second Return Pipe P Water-Based Paint L Liquid Level
───────────────────────────────────────────────────── フロントページの続き (72)発明者 井上 俊彦 栃木県鹿沼市さつき町７−３ 関西ペイン ト株式会社内 (72)発明者 加藤 恒雄 神奈川県平塚市東八幡５丁目４番１号 関 西ペイント株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Toshihiko Inoue 7-3 Satsukicho, Kanuma City, Tochigi Prefecture Kansai Paint Co., Ltd. Within the corporation
Claims (5)
ク本体を密閉的に閉鎖する蓋と、タンク本体内に貯蔵さ
れる水性塗料内に水性塗料を流入する配管とを有するこ
とを特徴とする塗料タンク。1. A tank body for storing water-based paint, a lid for hermetically closing the tank body, and a pipe for flowing the water-based paint into the water-based paint stored in the tank body. Paint tank.
ク本体を密閉的に閉鎖する蓋と、タンク本体内に貯蔵さ
れる水性塗料内に水性塗料を流入する複数の配管とを有
することを特徴とする塗料タンク。2. A tank body for storing the water-based paint, a lid for hermetically closing the tank body, and a plurality of pipes for flowing the water-based paint into the water-based paint stored in the tank body. And paint tank.
る水性塗料内で互に異なる方向に水性塗料を流入する請
求項２に記載の塗料タンク。3. The paint tank according to claim 2, wherein the plurality of pipes allow the water-based paint to flow in mutually different directions in the water-based paint stored in the tank body.
給源から塗料を供給する補給配管であり、他の配管の内
少なくとも１つが塗装機側の余剰の塗料をタンク本体内
に戻す戻し配管である請求項２または３に記載の塗料タ
ンク。4. At least one of the plurality of pipes is a supply pipe for supplying paint from a paint supply source, and at least one of the other pipes is a return pipe for returning excess paint on the side of the coating machine into the tank body. The paint tank according to claim 2 or 3.
塗料と、タンク本体内から排出される塗料とを選択的に
切換えてタンク本体内に供給する請求項４に記載の塗料
タンク。5. The paint tank according to claim 4, wherein the supply pipe selectively supplies the paint supplied from the paint supply source and the paint discharged from the tank body into the tank body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33493895A JPH09173947A (en) | 1995-12-22 | 1995-12-22 | Coating material tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33493895A JPH09173947A (en) | 1995-12-22 | 1995-12-22 | Coating material tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09173947A true JPH09173947A (en) | 1997-07-08 |
Family
ID=18282916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33493895A Pending JPH09173947A (en) | 1995-12-22 | 1995-12-22 | Coating material tank |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09173947A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001219106A (en) * | 2000-02-08 | 2001-08-14 | Kansai Paint Co Ltd | Method and apparatus for applying powder coating material |
| JP2005288375A (en) * | 2004-04-02 | 2005-10-20 | Ricoh Co Ltd | Spray gun, electrophotographic photoreceptor and manufacturing method of electrophotographic photoreceptor |
| JP2011224510A (en) * | 2010-04-22 | 2011-11-10 | Honda Motor Co Ltd | Apparatus for supplying liquid |
| JP2013202450A (en) * | 2012-03-27 | 2013-10-07 | Nec Corp | Coating apparatus |
-
1995
- 1995-12-22 JP JP33493895A patent/JPH09173947A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001219106A (en) * | 2000-02-08 | 2001-08-14 | Kansai Paint Co Ltd | Method and apparatus for applying powder coating material |
| JP2005288375A (en) * | 2004-04-02 | 2005-10-20 | Ricoh Co Ltd | Spray gun, electrophotographic photoreceptor and manufacturing method of electrophotographic photoreceptor |
| JP2011224510A (en) * | 2010-04-22 | 2011-11-10 | Honda Motor Co Ltd | Apparatus for supplying liquid |
| JP2013202450A (en) * | 2012-03-27 | 2013-10-07 | Nec Corp | Coating apparatus |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH09192583A (en) | Box for keeping roller type coating device | |
| JPH06140B2 (en) | Method for producing external catheter for men with adhesive | |
| JPH09173947A (en) | Coating material tank | |
| US4287672A (en) | Process and apparatus for drying pieces in bulk in a plating barrel | |
| JPS59127671A (en) | Automatic washer for gun nozzle of coating robot | |
| JP3825824B2 (en) | Water-based paint storage method and paint tank | |
| US5304236A (en) | Composition of matter for lining, coating or manufacturing underwater structures to prevent living marine organisms adhering to or building up on exposed surfaces | |
| JPH0924915A (en) | Peeling method for temporary protective film | |
| JPH09253573A (en) | Coating method for metallic molding | |
| JPH09192584A (en) | Roller type coating device | |
| JPS58112063A (en) | Spray coater | |
| JP3854435B2 (en) | Cleaning method for mask jig | |
| JPS60168154A (en) | Method and device for manufacturing electrophotographic sensitive body by coating | |
| JPH02180673A (en) | Cleaning of bell cup for bell type coater | |
| JP3370654B2 (en) | Method and apparatus for cleaning coating mask | |
| JPH09192593A (en) | Formation of protective film by application of aqueous coating material | |
| JPS606442Y2 (en) | Water washing equipment for electrodeposition coating | |
| JPH09155257A (en) | Cleaning device in wax spray applicator | |
| CN117900103A (en) | Paint spraying processing technology for motor shell | |
| JPS6127972Y2 (en) | ||
| JP2005230763A (en) | Coating method for temporary protection material | |
| JPS5962370A (en) | Chemical conversion treatment of substrate | |
| KR20110027147A (en) | Wash stand of spray gun for painting | |
| JP2003126747A (en) | Apparatus for applying solution of coating film forming agent | |
| JPS6359330A (en) | Exhaust treatment of coating booth |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A977 | Report on retrieval |
Effective date: 20040309 Free format text: JAPANESE INTERMEDIATE CODE: A971007 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20040325 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20040520 |
|
| A131 | Notification of reasons for refusal |
Effective date: 20040917 Free format text: JAPANESE INTERMEDIATE CODE: A131 |
|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20050120 |