JP4619019B2 - Paint supply method and apparatus - Google Patents

Paint supply method and apparatus Download PDF

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JP4619019B2
JP4619019B2 JP2004063602A JP2004063602A JP4619019B2 JP 4619019 B2 JP4619019 B2 JP 4619019B2 JP 2004063602 A JP2004063602 A JP 2004063602A JP 2004063602 A JP2004063602 A JP 2004063602A JP 4619019 B2 JP4619019 B2 JP 4619019B2
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真行 鏡山
徹 竹内
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Kansai Paint Co Ltd
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本発明は、工業用塗装ラインにおいて塗装に供される塗料を、被塗物表面温度、さらには温度、湿度、風速などの塗装雰囲気条件の変化に対応して最適塗料粘度となるよう調整し、必要量だけを塗装機に供給することにより、該被塗物表面温度、さらには塗装雰囲気条件の変動幅が大きい場合でも常に安定した塗装仕上りが得られる塗料供給方法及び装置に関する。   The present invention adjusts the coating material used for coating in an industrial coating line so as to have an optimum coating viscosity corresponding to changes in the coating atmosphere conditions such as the surface temperature of the object to be coated, and further the temperature, humidity, and wind speed, The present invention relates to a coating material supply method and apparatus that can always provide a stable coating finish even when the surface temperature of the object to be coated and the variation range of coating atmosphere conditions are large by supplying only a necessary amount to a coating machine.

一般的に工業用塗装ラインでは塗装ブースの雰囲気温度は一年を通じてある程度一定になるように温調設備を導入しているが、年間を通じて３０℃以上の差がある外気温に対し制御幅は通常約１０℃程度であり、又、被塗物表面温度は塗装雰囲気温度に対して＋０〜３０℃程度を有することが多い。   Generally, temperature control equipment is introduced in the industrial coating line so that the atmospheric temperature of the coating booth is constant to some extent throughout the year. The surface temperature of the article to be coated is often about +0 to 30 ° C. with respect to the coating atmosphere temperature.

安定な塗装仕上りを維持するためには、塗装雰囲気温度、塗装雰囲気湿度の制御幅は通常それぞれ約５℃以内、１０％以内にする必要があるが、塗装ブースの温調精度や湿度調整精度を上げて温度や湿度の制御幅を小さくすると空調設備に対する電力負荷が大幅に増大し、その結果ランニングコストの増加を招くことになる。電力負荷の増大は地球温暖化の主原因となる二酸化炭素の発生にもつながるため、省エネルギーを追及している塗装ラインでは空調精度を上げることは困難であった。   In order to maintain a stable paint finish, the control range of the paint atmosphere temperature and paint atmosphere humidity usually needs to be within 5 ° C and 10%, respectively. When the control range of temperature and humidity is reduced to increase the power load on the air conditioning equipment, the running cost will increase as a result. Since the increase in electric power load leads to the generation of carbon dioxide, which is the main cause of global warming, it is difficult to improve the air conditioning accuracy in the painting line pursuing energy saving.

さらに寒暖の差が激しい季節や地域では年間の温度差や湿度差もさることながら、日内変動や日間変動でも１０℃以上の温度差あるいは１５％以上の湿度差が生じることがあり、安定な塗装仕上りを確保・維持することは困難であった。   Furthermore, in seasons and regions where there is a great difference in temperature, the temperature difference of 10 ° C or more or a humidity difference of 15% or more may occur due to daily fluctuations or daily fluctuations, as well as annual temperature differences and humidity differences. It was difficult to secure and maintain the finish.

こうした問題点に対し、本出願人は特許文献１において塗装雰囲気温度に応じた溶剤系塗料の塗装仕上り性を確保する方策を提案したが、近年の塗料の水系化に伴い溶剤系塗料はもとより水系塗料にも適用できる塗装雰囲気に応じた塗装仕上がり性を安定に確保する方法が望まれている。   In response to these problems, the present applicant has proposed a method for ensuring the finish of a solvent-based paint in accordance with the coating atmosphere temperature in Patent Document 1, but with the recent development of water-based paints, not only solvent-based paints but also water-based paints have been proposed. There is a demand for a method for stably ensuring the finish of painting according to the painting atmosphere that can also be applied to paints.

一般に水系塗料においては、塗装雰囲気条件によって塗装仕上り性が非常に左右されやすいことから、塗装直前に希釈剤やレオロジーコントロール剤等により水系塗料の粘度調整を行い、塗装雰囲気条件に適した塗料を調整し、これを塗装する方法が一般に用いられている。しかしながら該方法によれば、希釈剤やレオロジーコントロール剤のほんの少量の添加により塗料粘度が大幅に変化することが頻繁にあり、工業用塗装ラインで粘度調整作業を試行錯誤しながら何度も行わなければならないという問題がある。   In general, with water-based paints, the paint finish is very easily affected by the coating atmosphere conditions, so the viscosity of the water-based paint is adjusted with a diluent, rheology control agent, etc. immediately before coating to adjust the paint suitable for the coating atmosphere conditions. However, a method of painting this is generally used. However, according to this method, the viscosity of the paint often changes greatly by adding only a small amount of a diluent or rheology control agent, and the viscosity adjustment work must be repeated many times through trial and error in an industrial coating line. There is a problem that must be.

また、塗装工業ラインにおいて被塗物の表面温度は、塗装雰囲気温度に加えて、被塗物に対する前処理の有無やその程度、前処理後の経過時間等によって大きく変動するので、塗装雰囲気温度が調整されたラインにおいても安定した塗装仕上がり性を得ることが困難な場合があった。   In addition, in the painting industry line, the surface temperature of the object to be coated varies greatly depending on the presence or absence of pre-treatment of the object to be coated, the degree thereof, the elapsed time after the pre-treatment, etc. Even in the adjusted line, it may be difficult to obtain a stable paint finish.

特開２００２−４５７７４号公報JP 2002-45774 A

本発明は、被塗物表面温度幅や温度、湿度、風速などの塗装雰囲気条件の変動幅が大きい場合でも、安定した塗装仕上りが得られる方法を提供することを目的とするものである。   An object of the present invention is to provide a method capable of obtaining a stable coating finish even when the variation range of the coating atmosphere conditions such as the surface temperature range, temperature, humidity, and wind speed of the object is large.

本発明者らは、上記した課題に対し、特定の低粘度水系塗料と高粘度水系塗料を被塗物表面温度に応じた配合比率で混合しながら供給する方法及び装置により、安定した塗装仕上がりが得られることを見出し、本発明に到達した。即ち本発明は、
１．２０℃における粘度が５〜１００ｍＰａ・ｓである低粘度水系塗料と２０℃における粘度が１０５〜１００００ｍＰａ・ｓであり、該低粘度水系塗料に対して１０ｍＰａ・ｓ以上高い粘度である高粘度水系塗料を、被塗物表面温度に対応して塗装に適した配合比率で混合しながら連続的に供給することを特徴とする塗料供給方法、
２．被塗物表面温度の変化に応じて、低粘度水系塗料及び高粘度水系塗料の適性配合比率及びこれら塗料の混合塗料に対する追加量が、該被塗物表面温度及び混合塗料の残量から決められる１項記載の塗料供給方法、
３．低粘度水系塗料及び高粘度水系塗料が、コンテナもしくはドラムで搬入される１項または２項に記載の塗料供給方法、
４．低粘度水系塗料と高粘度水系塗料の配合比率が、塗装雰囲気条件の変化によりさらに制御される１項ないし３項のいずれか１項に記載の塗料供給方法、
５．塗装雰囲気条件が、塗装雰囲気温度、塗装雰囲気湿度及び塗装雰囲気風速のいずれか１種以上の条件である４項に記載の塗料供給方法、
６．２０℃における粘度が５〜１００ｍＰａ・ｓである低粘度水系塗料と２０℃における粘度が１０５〜１００００ｍＰａ・ｓであり、該低粘度水系塗料に対して１０ｍＰａ・ｓ以上高い粘度である高粘度水系塗料を混合するラインミキサーと、被塗物表面温度、塗装雰囲気温度、塗装雰囲気湿度及び塗装雰囲気風速の変化に応じて、該低粘度水系塗料と該高粘度水系塗料の適性配合比率を、該被塗物表面温度、塗装雰囲気温度、塗装雰囲気湿度及び塗装雰囲気風速から計算する演算装置と、該演算結果によりこれら塗料の定量供給ポンプの吐出量及び吐出時間を制御するコントローラーとを具備することを特徴とする塗料供給装置、
７．２０℃における粘度が５〜１００ｍＰａ・ｓである低粘度水系塗料と２０℃における粘度が１０５〜１００００ｍＰａ・ｓであり、該低粘度水系塗料に対して１０ｍＰａ・ｓ以上高い粘度である高粘度水系塗料を混合するラインミキサーと、被塗物表面温度、塗装雰囲気温度、塗装雰囲気湿度及び塗装雰囲気風速の変化に応じて、該低粘度水系塗料と該高粘度水系塗料の適性配合比率を、該被塗物表面温度、塗装雰囲気温度、塗装雰囲気湿度及び塗装雰囲気風速から計算する演算装置と、該演算結果によりこれら塗料の定量供給ポンプの吐出量及び吐出時間を制御するコントローラーとを具備し、該適性配合比率を演算するための入力信号が、被塗物表面温度を検出するセンサーからの電気信号と、塗装雰囲気温度及び塗装雰囲気湿度を検出する温湿度センサーからの電気信号と、塗装雰囲気風速を検出する風速計からの電気信号であることを特徴とする塗料供給装置、
８．複数の塗装ブース内の各被塗物に塗料をそれぞれ供給する方法に用いられる装置であって、２０℃における粘度が５〜１００ｍＰａ・ｓである低粘度水系塗料と２０℃における粘度が１０５〜１００００ｍＰａ・ｓであり、該低粘度水系塗料に対して１０ｍＰａ・ｓ以上高い粘度である高粘度水系塗料を混合する各塗装ブースに適する複数の混合塗料を作成するための複数のラインミキサーと、該各塗装ブースの被塗物表面温度、塗装雰囲気温度、塗装雰囲気湿度及び塗装雰囲気風速の変化に応じて、該低粘度水系塗料及び該高粘度水系塗料の適性配合比率を、該各塗装ブースの被塗物表面温度、塗装雰囲気温度、塗装雰囲気湿度及び塗装雰囲気風速から計算する演算装置と、該演算結果によりこれら塗料を夫々供給するための複数の定量供給ポンプの吐出量及び吐出時間を制御するコントローラーとを具備し、該適性配合比率を演算するための入力信号が、該各塗装ブース内の被塗物表面温度を検出する各センサーからの電気信号、塗装雰囲気温度及び塗装雰囲気湿度を検出する各温湿度センサーからの電気信号、及び塗装雰囲気風速を検出する各風速計からの電気信号であることを特徴とする塗料供給装置、
９．２０℃における粘度が５〜１００ｍＰａ・ｓである低粘度水系塗料と２０℃における粘度が１０５〜１００００ｍＰａ・ｓであり、該低粘度水系塗料に対して１０ｍＰａ・ｓ以上高い粘度である高粘度水系塗料を混合するラインミキサーと、該混合塗料の残量が計量できる中継タンクと、被塗物表面温度、塗装雰囲気温度、塗装雰囲気湿度及び塗装雰囲気風速の変化に応じて、該低粘度水系塗料と該高粘度水系塗料の適性配合比率及びこれら塗料の混合塗料に対する追加量を、該被塗物表面温度、塗装雰囲気温度、塗装雰囲気湿度、塗装雰囲気風速及び混合塗料の残量から計算する演算装置と、該演算結果によりこれら塗料の定量供給ポンプの吐出量及び吐出時間を制御するコントローラーとを具備することを特徴とする塗料供給装置、
１０．２０℃における粘度が５〜１００ｍＰａ・ｓである低粘度水系塗料と２０℃における粘度が１０５〜１００００ｍＰａ・ｓであり、該低粘度水系塗料に対して１０ｍＰａ・ｓ以上高い粘度である高粘度水系塗料を混合するラインミキサーと、該混合塗料の残量が計量できる中継タンクと、被塗物表面温度、塗装雰囲気温度、塗装雰囲気湿度、塗装雰囲気風速の変化に応じて、該低粘度水系塗料と該高粘度水系塗料の適性配合比率及びこれら塗料の該混合塗料に対する追加量を、該被塗物表面温度、塗装雰囲気温度、塗装雰囲気湿度、塗装雰囲気風速及び該混合塗料の残量から計算する演算装置と、該演算結果によりこれら塗料の定量供給ポンプの吐出量及び吐出時間を制御するコントローラーとを具備し、該適性配合比率、さらには該混合塗料に対する追加量を演算するための入力信号が、被塗物表面温度を検出するセンサーからの電気信号と、塗装雰囲気温度及び塗装雰囲気湿度を検出する温湿度センサーからの電気信号と、塗装雰囲気風速を検出する風速計からの電気信号と、さらには中継タンクに内蔵されたレベルセンサーからの電気信号であることを特徴とする塗料供給装置、
１１．複数の塗装ブース内の各被塗物に塗料をそれぞれ供給する方法に用いられる装置であって、２０℃における粘度が５〜１００ｍＰａ・ｓである低粘度水系塗料と２０℃における粘度が１０５〜１００００ｍＰａ・ｓであり、該低粘度水系塗料に対して１０ｍＰａ・ｓ以上高い粘度である高粘度水系塗料を混合する各塗装ブースに適する複数の混合塗料を作成するための複数のラインミキサーと、該各混合塗料の残量が計量できる複数の中継タンクと、該各塗装ブースの被塗物表面温度、塗装雰囲気温度、塗装雰囲気湿度及び塗装雰囲気風速の変化に応じて、該低粘度水系塗料及び該高粘度水系塗料の適性配合比率及びこれら塗料の該各混合塗料に対する追加量を、該各塗装ブースの被塗物表面温度、塗装雰囲気温度、塗装雰囲気湿度、塗装雰囲気風速及び該各混合塗料の残量から計算する演算装置と、該演算結果によりこれら塗料を夫々供給するための複数の定量供給ポンプの吐出量及び吐出時間を制御するコントローラーとを具備し、該適性配合比率、さらにはこれら塗料の該各混合塗料に対する追加量を演算するための入力信号が、該各塗装ブースの被塗物表面温度を検出する各センサーからの電気信号と、塗装雰囲気温度及び塗装雰囲気湿度を検出する各温湿度センサーからの電気信号と、及び塗装雰囲気風速を検出する各風速計からの電気信号と、さらには該各中継タンクに内蔵された各レベルセンサーからの電気信号であることを特徴とする塗料供給装置、に関する。 With respect to the above-mentioned problems, the present inventors have achieved a stable coating finish by a method and apparatus for supplying a specific low-viscosity water-based paint and a high-viscosity water-based paint while mixing them at a blending ratio corresponding to the surface temperature of the object to be coated. As a result, the present invention was reached. That is, the present invention
Viscosity at 1.20 ° C. is Ri low viscosity water-based paints and a viscosity at 20 ° C. is 105~10000mPa · s der which is 5 to 100 mPa · s, a high a high viscosity or 10 mPa · s with respect to the low viscosity water-based paints A paint supply method characterized by continuously supplying a viscous water-based paint while mixing at a blending ratio suitable for coating corresponding to the surface temperature of the object to be coated,
2. In accordance with the change in the surface temperature of the object to be coated, the appropriate blending ratio of the low-viscosity water-based paint and the high-viscosity water-based paint and the additional amount of these paints to the mixed paint are determined from the surface temperature of the object to be coated and the remaining amount of the mixed paint. The paint supply method according to claim 1,
3. 3. The paint supply method according to item 1 or 2, wherein the low-viscosity water-based paint and the high-viscosity water-based paint are carried in by a container or a drum,
4). 4. The paint supply method according to any one of items 1 to 3, wherein the blending ratio of the low-viscosity water-based paint and the high-viscosity water-based paint is further controlled by a change in the coating atmosphere conditions.
5. 5. The paint supply method according to item 4, wherein the paint atmosphere condition is one or more of paint atmosphere temperature, paint atmosphere humidity, and paint atmosphere wind speed.
6). A low-viscosity water-based paint having a viscosity at 20 ° C. of 5 to 100 mPa · s and a high-viscosity water-based paint having a viscosity at 20 ° C. of 105 to 10,000 mPa · s and a viscosity higher than that of the low-viscosity water-based paint by 10 mPa · s or more. a line mixer for mixing, the coating object surface temperature, painting ambient temperature, in accordance with a change in paint atmospheric humidity and coating atmosphere wind speed, the suitability blending ratio of the low viscosity water-based paint and the high viscosity water-based paints,該被coating A calculation device that calculates from the surface temperature of the object, the coating atmosphere temperature, the coating atmosphere humidity, and the coating atmosphere wind speed, and a controller that controls the discharge amount and the discharge time of the fixed amount supply pump of these paints according to the calculation result, Paint supply device,
7). A low-viscosity water-based paint having a viscosity at 20 ° C. of 5 to 100 mPa · s and a high-viscosity water-based paint having a viscosity at 20 ° C. of 105 to 10,000 mPa · s and a viscosity higher than that of the low-viscosity water-based paint by 10 mPa · s or more. a line mixer for mixing, the coating object surface temperature, painting ambient temperature, in accordance with a change in paint atmospheric humidity and coating atmosphere wind speed, the suitability blending ratio of the low viscosity water-based paint and the high viscosity water-based paints,該被coating Computation device that calculates from surface temperature, painting atmosphere temperature, painting atmosphere humidity, and painting atmosphere wind speed, and controller that controls the discharge amount and discharge time of a fixed amount supply pump of these paints according to the calculation result The input signal for calculating the ratio detects the electrical signal from the sensor that detects the surface temperature of the object to be coated, and the paint atmosphere temperature and paint atmosphere humidity. Paint supply apparatus characterized by that the electrical signal from the temperature and humidity sensors, an electric signal from the anemometer to detect the painting atmosphere wind speed,
8). It is an apparatus used for a method of supplying paints to respective objects to be coated in a plurality of painting booths, and a low-viscosity water-based paint having a viscosity of 5 to 100 mPa · s at 20 ° C. and a viscosity of 105 to 10,000 mPa at 20 ° C. A plurality of line mixers for producing a plurality of mixed paints suitable for each coating booth for mixing high-viscosity water-based paints having a viscosity of 10 mPa · s or more with respect to the low-viscosity water-based paints; object to be coated the surface temperature of the paint booth, paint ambient temperature, in accordance with a change in paint atmospheric humidity and coating atmosphere wind speed, the suitability blending ratio of the low viscosity water-based paint and the high viscosity water-based paint, the coating of each of the painting booth An arithmetic device that calculates from the surface temperature of the object, the coating atmosphere temperature, the coating atmosphere humidity, and the coating atmosphere wind speed, and a plurality of quantitative supplies for supplying each of these paints according to the calculation results. A controller for controlling the discharge amount and discharge time of the feed pump, and an input signal for calculating the appropriate blending ratio is an electric signal from each sensor for detecting the surface temperature of the object to be coated in each coating booth A paint supply device characterized by being an electric signal from each temperature / humidity sensor for detecting a coating atmosphere temperature and a coating atmosphere humidity, and an electric signal from each anemometer for detecting a coating atmosphere wind speed,
9. A low-viscosity water-based paint having a viscosity at 20 ° C. of 5 to 100 mPa · s and a high-viscosity water-based paint having a viscosity at 20 ° C. of 105 to 10,000 mPa · s and a viscosity higher than that of the low-viscosity water-based paint by 10 mPa · s or more. a line mixer for mixing, and a relay tank remaining amount of the coating mix can be weighed, the coating object surface temperature, painting ambient temperature, in accordance with a change in paint atmospheric humidity and coating atmosphere wind speed, the low viscosity water-based paints and the An arithmetic unit for calculating an appropriate blending ratio of the high-viscosity water-based paint and an additional amount of these paints with respect to the mixed paint from the surface temperature of the object to be coated, the painting atmosphere temperature, the painting atmosphere humidity, the painting atmosphere wind speed, and the remaining amount of the mixed paint; A paint supply device comprising a controller for controlling a discharge amount and a discharge time of a fixed amount supply pump of the paint according to the calculation result;
10. A low-viscosity water-based paint having a viscosity at 20 ° C. of 5 to 100 mPa · s and a high-viscosity water-based paint having a viscosity at 20 ° C. of 105 to 10,000 mPa · s and a viscosity higher than that of the low-viscosity water-based paint by 10 mPa · s or more. a line mixer for mixing, and a relay tank remaining amount of the coating mix can be weighed, the coating object surface temperature, painting ambient temperature, painting atmospheric humidity, depending on the change in the coating atmosphere wind, the low viscosity water-based paints and the An arithmetic unit for calculating an appropriate blending ratio of high-viscosity water-based paint and an additional amount of these paints to the mixed paint from the surface temperature of the object to be coated, the painting atmosphere temperature, the painting atmosphere humidity, the painting atmosphere wind speed, and the remaining amount of the mixed paint And a controller for controlling the discharge amount and discharge time of the constant-quantity supply pump for these paints according to the calculation result, the appropriate blending ratio, and further the mixed coating The input signal for calculating the additional amount is the electrical signal from the sensor that detects the surface temperature of the workpiece, the electrical signal from the temperature and humidity sensor that detects the painting atmosphere temperature and the painting atmosphere humidity, and the painting atmosphere wind speed. An electrical signal from an anemometer to be detected, and further an electrical signal from a level sensor built in the relay tank,
11. It is an apparatus used for a method of supplying paints to respective objects to be coated in a plurality of painting booths, and a low-viscosity water-based paint having a viscosity of 5 to 100 mPa · s at 20 ° C. and a viscosity of 105 to 10,000 mPa at 20 ° C. A plurality of line mixers for producing a plurality of mixed paints suitable for each coating booth for mixing high-viscosity water-based paints having a viscosity of 10 mPa · s or more with respect to the low-viscosity water-based paints; a plurality of relay tanks the remaining amount of the coating mix can be weighed, the coating object surface temperature of each of the coating booth, paint ambient temperature, in accordance with a change in paint atmospheric humidity and coating atmosphere wind speed, the low viscosity water-based paint and the high Appropriate blending ratio of the viscosity water-based paint and the additional amount of these paints with respect to each of the mixed paints, the surface temperature of the object to be coated, the paint atmosphere temperature, the paint atmosphere humidity, the paint atmosphere An arithmetic device for calculating from the ambient wind speed and the remaining amount of each mixed paint, and a controller for controlling the discharge amount and discharge time of a plurality of metering pumps for supplying these paints according to the calculation results, An input signal for calculating an appropriate blending ratio, and an additional amount of these paints with respect to each of the mixed paints, an electric signal from each sensor for detecting a surface temperature of an object to be coated in each paint booth, a paint atmosphere temperature, and An electrical signal from each temperature / humidity sensor that detects the painting atmosphere humidity, an electrical signal from each anemometer that detects the coating atmosphere wind speed, and an electrical signal from each level sensor built in each relay tank The present invention relates to a coating material supply device.

本発明方法によれば、特定の低粘度塗料と高粘度塗料を混合することにより、水系塗料の系でも被塗物表面温度に対応して塗装に適する塗料を試行錯誤することなく簡便に調製でき、該調整された塗料を供給することにより安定した仕上り性を得ることができる。さらに混合塗料の作成条件に塗装雰囲気条件を加味することにより、より安定した仕上がりを得ることができる。また、本方法によれば、塗装環境の異なる複数の塗装ブースに塗料を供給することもでき、各塗装ブースに適した塗料を効率よく供給し、短時間で多くの塗装を行うことが可能である。   According to the method of the present invention, by mixing a specific low-viscosity paint and a high-viscosity paint, a paint suitable for coating can be easily prepared without trial and error in accordance with the surface temperature of the object to be coated even in a water-based paint system. A stable finish can be obtained by supplying the adjusted paint. Furthermore, a more stable finish can be obtained by adding the coating atmosphere conditions to the preparation conditions of the mixed paint. In addition, according to this method, paint can be supplied to a plurality of paint booths with different paint environments, and paint suitable for each paint booth can be efficiently supplied so that many paints can be applied in a short time. is there.

本発明方法で使用される低粘度水系塗料の粘度としては、２０℃における粘度が５〜１００ｍＰａ・ｓ、好ましくは２０〜８０ｍＰａ・ｓの範囲内であり、他方、高粘度水系塗料の粘度としては、２０℃における粘度が１０５〜１００００ｍＰａ・ｓ、好ましくは１２０〜５０００ｍＰａ・ｓの範囲内であり、該低粘度水系塗料に対して１０ｍＰａ・ｓ以上高い粘度である塗料を挙げることができる。 As the viscosity of the low-viscosity water-based paint used in the method of the present invention, the viscosity at 20 ° C. is in the range of 5 to 100 mPa · s, preferably 20 to 80 mPa · s. Examples thereof include a paint having a viscosity at 20 ° C. of 105 to 10,000 mPa · s, preferably 120 to 5000 mPa · s, and a viscosity higher than that of the low-viscosity aqueous paint by 10 mPa · s or more .

本明細書において、粘度は試料を２０℃に調整し、Ｂ型粘度計にて６０回転で測定した値とする。これら塗料は実質的に同一塗色の塗料を用いることが望ましく、溶剤系でも水系であってもよい。該低粘度塗料及び高粘度塗料は、塗料メーカーにおいて用意することができ、コンテナもしくはドラムで塗装ラインに搬入されることが好適である。これにより塗装ラインサイドにおいてこれら塗料を粘調する工程が省略され、さらなる工数削減が可能となる。   In this specification, the viscosity is a value obtained by adjusting the sample to 20 ° C. and measuring it with a B-type viscometer at 60 revolutions. These paints desirably use paints of substantially the same color, and may be solvent-based or water-based. The low-viscosity paint and the high-viscosity paint can be prepared by a paint maker, and are preferably carried into a painting line by a container or a drum. As a result, the step of viscosity-adjusting these paints on the painting line side is omitted, and further man-hours can be reduced.

また、被塗物に設けられる塗膜の膜厚を均一にするためには、上記低粘度塗料と高粘度塗料の塗料の固形分が実質的に同一であることが望ましいが、各々異なっていてもよい。この場合、低粘度塗料及び高粘度塗料の各固形分を、各塗料の配合比率を計算する演算装置にあらかじめ入力しておくことで、混合塗料の固形分が算出され、供給される塗料の量を固形分に応じて制御することで必要膜厚を確保することができる。   Further, in order to make the film thickness of the coating film to be coated uniform, it is desirable that the solid content of the low-viscosity paint and the high-viscosity paint is substantially the same, but they are different from each other. Also good. In this case, the solid content of the mixed paint is calculated by inputting each solid content of the low-viscosity paint and the high-viscosity paint in advance to the arithmetic unit that calculates the blending ratio of each paint, and the amount of the supplied paint The required film thickness can be ensured by controlling according to the solid content.

本発明方法では、上記低粘度塗料と高粘度塗料を、被塗物表面温度、さらには該被塗物表面温度に加えて塗装雰囲気条件の変化にも対応して塗装に適した配合比率で、混合しながら連続的に供給する。これら塗料は、それぞれ定量ポンプで混合用ラインミキサーに送られて十分に混合され、そのまま塗装機に供給されることができ、あるいは一旦、中継タンクに充填させることもでき、塗装時の被塗物表面温度、さらには塗装雰囲気条件に最適な粘度の塗料を必要なだけ調合することができる。配合比率及び充填量はそれぞれの定量ポンプの設定流量と吐出時間で容易に決定することが可能である。   In the method of the present invention, the low-viscosity paint and the high-viscosity paint are mixed at a blending ratio suitable for coating in response to changes in coating atmosphere conditions in addition to the surface temperature of the coating object, and further to the surface temperature of the coating object, Feed continuously with mixing. Each of these paints is sent to a mixing line mixer by a metering pump and thoroughly mixed, and can be supplied as it is to a coating machine, or can be once filled in a relay tank. It is possible to prepare as much paint as necessary with the optimum viscosity for the surface temperature and also the coating atmosphere conditions. The blending ratio and filling amount can be easily determined by the set flow rate and discharge time of each metering pump.

被塗物表面温度及び塗装雰囲気条件は、それぞれ被塗物近傍及びブース内に設けた温度センサーと湿度センサーを兼ねた温湿度センサー、風速センサーで検出され、その変化に応じて、予め決定された被塗物表面温度及び塗装雰囲気条件に対する最適な塗料粘度のデータベースから、その被塗物表面温度及び塗装雰囲気条件に最適な粘度の塗料を調合することが可能となる。なお、被塗物表面温度は非接触かつ定点での測定が好ましく、例えば赤外線を利用した温度計のような非接触用温度センサーの使用が望ましい。   The surface temperature of the object to be coated and the coating atmosphere conditions are detected by a temperature / humidity sensor and a wind speed sensor that also serve as a humidity sensor and a temperature sensor provided in the vicinity of the object to be coated and in the booth, and are determined in advance according to the change. It is possible to prepare a paint having the optimum viscosity for the surface temperature of the coating object and the coating atmosphere condition from the database of the optimum coating viscosity for the surface temperature of the coating object and the coating atmosphere condition. The surface temperature of the object to be coated is preferably measured in a non-contact and fixed point. For example, it is desirable to use a non-contact temperature sensor such as a thermometer using infrared rays.

また、本発明では、中継タンクを用いる場合、これにレベルセンサーを設けることで、混合塗料の残量を常時検出することが可能であり、配合比率の異なる新たな混合塗料を追加する場合も中継タンクに残っている混合塗料の内訳から逆算することで、被塗物表面温度及び塗装雰囲気条件に最適な粘度の塗料となるようにこれら塗料の配合比率及び追加量を決定することができる。被塗物表面温度を検出する温度センサーからの電気信号と、塗装雰囲気温度及び塗装雰囲気湿度を検出する温湿度センサーからの電気信号、塗装雰囲気風速を検出する風速センサーからの電気信号、さらには中継タンクに内蔵されたレベルセンサーからの電気信号を入力データとし、データベースを参照して配合比率及び追加量を計算する演算装置と、演算結果を出力データとして各塗料の定量供給ポンプのコントローラーに伝達するインターフェースを組み合わせることで年間を通じて安定した塗装仕上りが得られる塗料供給システムとすることができる。   Further, in the present invention, when a relay tank is used, it is possible to always detect the remaining amount of the mixed paint by providing a level sensor in the relay tank, and even when adding a new mixed paint having a different blending ratio. By calculating backward from the breakdown of the mixed paint remaining in the tank, the blending ratio and additional amount of these paints can be determined so as to obtain a paint having the optimum viscosity for the surface temperature of the object to be coated and the coating atmosphere conditions. Electrical signal from the temperature sensor that detects the surface temperature of the object to be coated, electrical signal from the temperature / humidity sensor that detects the painting atmosphere temperature and painting atmosphere humidity, electrical signal from the wind speed sensor that detects the painting atmosphere wind speed, and relaying An electric signal from the level sensor built in the tank is used as input data, and a calculation device that calculates the blending ratio and additional amount by referring to the database, and the calculation result as output data are transmitted to the controller of the metering supply pump for each paint. By combining the interface, it is possible to provide a paint supply system that can provide a stable paint finish throughout the year.

また、本発明方法においては、上記塗料供給システムを複数設けることもできる。これにより上記低粘度塗料及び高粘度塗料からなる混合塗料を、塗装雰囲気条件の異なる複数の塗装ブース内の被塗物に供給することも可能である。この際、塗料吐出量及び吐出時間を制御するコントローラーは１台であってもよいが、各塗装ブースに対して設けてもよい。   In the method of the present invention, a plurality of the paint supply systems can be provided. Thereby, it is also possible to supply the mixed paint composed of the low-viscosity paint and the high-viscosity paint to the objects to be coated in a plurality of painting booths having different painting atmosphere conditions. At this time, the controller for controlling the paint discharge amount and the discharge time may be one, but may be provided for each paint booth.

実施例を記載する。
図１、図２、図３は、本発明の一実施例を説明する概略構成図である。 Examples will be described.
1, 2 and 3 are schematic configuration diagrams for explaining an embodiment of the present invention.

図１において、塗料タンク１に充填された高粘度塗料は、定量ポンプ２ａにより三方バルブ３ａを介して循環しており、塗料タンク６ａに充填された低粘度塗料は、定量ポンプ７ａにより三方バルブ８ａを介して循環している。これら塗料は、三方バルブ３ａ、８ａによる流路変更でマニホールド１０ａに送られ、ミキサー１１ａで混合され、塗装機１５ａに供給される。三方バルブ３ａ、８ａの流路変更及び定量ポンプ２ａ、７ａの流量は、コントローラー５ａによって制御されている。定量ポンプ２ａ、７ａには、インバータ（図示せず）で回転数を制御可能なＡＣサーボモーターで駆動するギアポンプを使用している。   In FIG. 1, the high-viscosity paint filled in the paint tank 1 is circulated through the three-way valve 3a by the metering pump 2a, and the low-viscosity paint filled in the paint tank 6a is circulated by the three-way valve 8a by the metering pump 7a. Is circulating through. These paints are sent to the manifold 10a by changing the flow path by the three-way valves 3a and 8a, mixed by the mixer 11a, and supplied to the coating machine 15a. The flow path change of the three-way valves 3a and 8a and the flow rate of the metering pumps 2a and 7a are controlled by the controller 5a. As the metering pumps 2a and 7a, gear pumps driven by an AC servo motor whose rotation speed can be controlled by an inverter (not shown) are used.

ここで、塗料として高粘度塗料（固形分３０％・粘度 ４０００ｍＰａ・ｓ、アクリル系樹脂水系塗料）と低粘度塗料（固形分２０％・粘度 ３０ｍＰａ・ｓ、アクリル系樹脂水系塗料）を用意した。塗装を行う前にあらかじめ各塗料の固形分をコントローラー５の演算装置に入力しておく。   Here, a high-viscosity paint (solid content 30%, viscosity 4000 mPa · s, acrylic resin water-based paint) and a low-viscosity paint (solid content 20%, viscosity 30 mPa · s, acrylic resin-water-based paint) were prepared. Prior to coating, the solid content of each paint is input to the arithmetic unit of the controller 5 in advance.

これら塗料は、塗料メーカーよりコンテナもしくはドラムにて搬入可能であり、該コンテナもしくはドラムをそのまま塗料タンク1及び塗料タンク６として使用可能である。これらの被塗物表面温度、さらには塗装雰囲気温度、塗装雰囲気湿度、塗装雰囲気風速に対する最適配合比率の一例を表１に示す。表中の配合比率は重量である。   These paints can be carried in by a container or drum from a paint manufacturer, and the container or drum can be used as it is as the paint tank 1 and the paint tank 6. Table 1 shows an example of the optimum blending ratio with respect to the surface temperature of these objects to be coated, the coating atmosphere temperature, the coating atmosphere humidity, and the coating atmosphere wind speed. The blending ratio in the table is weight.

Figure 0004619019
Figure 0004619019

図１に示すように、被塗物１６ａ近傍に設けられた非接触形の被塗物表面温度センサー１７ａからの信号と、塗装ブース１８ａ内に設けられた塗装雰囲気温湿度センサー９ａからの信号がコントローラー５ａに送られ、表１に例示したような被塗物表面温度、さらには塗装雰囲気温度、塗装雰囲気湿度及び塗装雰囲気風速に最適な配合比率が算出され、定量ポンプ２ａ、７ａにはその流量の指示が送られる。例えば塗装雰囲気温度及び被塗物表面温度、塗装雰囲気風速が一定の場合には塗装雰囲気湿度の変動に応じた配合比率に制御される。その指示によって最適比率で供給された各塗料は、ミキサー１１ａにおいて混合され、得られた混合塗料が塗装機１５ａに供給されるものである。ここで、該混合塗料の固形分は各塗料固形分及び配合比率から算出されるものであり、該混合塗料の固形分に基づいて必要膜厚に応じた最適な塗料吐出量が算出され、塗装機１５ａに供給される塗料の量が制御される。   As shown in FIG. 1, the signal from the non-contact type object surface temperature sensor 17a provided in the vicinity of the object 16a and the signal from the painting atmosphere temperature / humidity sensor 9a provided in the painting booth 18a are obtained. It is sent to the controller 5a, and the optimum blending ratio is calculated for the surface temperature of the object to be coated as exemplified in Table 1, the coating atmosphere temperature, the coating atmosphere humidity and the coating atmosphere wind speed, and the flow rate is supplied to the metering pumps 2a and 7a. Is sent. For example, when the coating atmosphere temperature, the surface temperature of the object to be coated, and the wind speed of the coating atmosphere are constant, the blending ratio is controlled according to fluctuations in the coating atmosphere humidity. Each paint supplied at the optimum ratio according to the instruction is mixed in the mixer 11a, and the obtained mixed paint is supplied to the coating machine 15a. Here, the solid content of the mixed paint is calculated from each solid content of the paint and the blending ratio. Based on the solid content of the mixed paint, the optimum paint discharge amount corresponding to the required film thickness is calculated and applied. The amount of paint supplied to the machine 15a is controlled.

次いで図２は、本発明の別の一実施例を説明する概略構成図である。図２において、塗料タンク１に充填された高粘度塗料は、定量ポンプ２ａにより三方バルブ３ａを介して循環しており、塗料タンク６に充填された低粘度塗料は、定量ポンプ７ａにより三方バルブ８ａを介して循環している。これら塗料は、三方バルブ３ａ、８ａによる流路変更でマニホールド１０ａに送られ、ミキサー１１ａで混合され、一旦、中継タンク１２ａに充填される。三方バルブ３ａ、８ａの流路変更及び定量ポンプ２ａ、７ａの流量は、コントローラー５ａによって制御されている。定量ポンプ２ａ、７ａには、インバータ（図示せず）で回転数を制御可能なＡＣサーボモーターで駆動するギアポンプを使用している。   Next, FIG. 2 is a schematic configuration diagram for explaining another embodiment of the present invention. In FIG. 2, the high-viscosity paint filled in the paint tank 1 is circulated through the three-way valve 3a by the metering pump 2a, and the low-viscosity paint filled in the paint tank 6 is circulated by the metering pump 7a. Is circulating through. These paints are sent to the manifold 10a by changing the flow path by the three-way valves 3a and 8a, mixed by the mixer 11a, and once filled in the relay tank 12a. The flow path change of the three-way valves 3a and 8a and the flow rate of the metering pumps 2a and 7a are controlled by the controller 5a. As the metering pumps 2a and 7a, gear pumps driven by an AC servo motor whose rotation speed can be controlled by an inverter (not shown) are used.

図２に示すように、塗装ブース１８ａ内に設けられた塗装雰囲気温湿度センサー９ａからの信号と、アネモメータ１９ａ（風速計）と、被塗物１６ａ近傍に設けられた非接触形の被塗物表面温度センサー１７ａからの信号と、中継タンク１２ａに設置したレベルセンサー１３ａからの信号がコントローラー５ａに送られ、中継タンク１２ａ中に残る高粘度塗料と低粘度塗料の内訳をもとに、表１に例示したような被塗物表面温度、塗装雰囲気温度、塗装雰囲気湿度及び塗装雰囲気風速に最適な配合比率とこれら塗料の追加充填量が算出され、定量ポンプ２ａ、７ａにはその流量の指示が、三方バルブ３ａ、８ａには追加充填量から逆算した吐出時間により流路を切り替えるパイロットエアーのＯＮ／ＯＦＦ時間の指示が送られる。流路変更によりマニホールド１０ａに送られた高粘度塗料と低粘度塗料はミキサー１１ａで混合され中継タンク１２ａに再充填される。中継タンク１２ａにおいて最適比率で混合された混合塗料は塗装用定量ポンプ１４ａにより塗装機１５ａに供給される。ここで、該混合塗料の固形分は各塗料固形分及び配合比率から算出されるものであり、該混合塗料の固形分に基づいて必要膜厚に応じた最適な吐出量が算出され、塗装機１５ａに供給される塗料の量が制御される。   As shown in FIG. 2, a signal from a painting atmosphere temperature / humidity sensor 9a provided in the painting booth 18a, an anemometer 19a (an anemometer), and a non-contact type article to be provided provided in the vicinity of the article 16a. A signal from the surface temperature sensor 17a and a signal from the level sensor 13a installed in the relay tank 12a are sent to the controller 5a, and Table 1 shows the breakdown of the high-viscosity paint and low-viscosity paint remaining in the relay tank 12a. The optimum blending ratio and the additional filling amount of these paints are calculated for the surface temperature, the painting atmosphere temperature, the painting atmosphere humidity and the painting atmosphere wind speed as exemplified in Fig. 1. The metering pumps 2a and 7a are instructed by the flow rate. The three-way valves 3a and 8a are instructed to turn on and off the pilot air for switching the flow path according to the discharge time calculated backward from the additional filling amount. The high-viscosity paint and the low-viscosity paint sent to the manifold 10a due to the flow path change are mixed by the mixer 11a and refilled in the relay tank 12a. The mixed paint mixed at the optimum ratio in the relay tank 12a is supplied to the coating machine 15a by the coating quantitative pump 14a. Here, the solid content of the mixed paint is calculated from each solid content of the paint and the blending ratio, and the optimum discharge amount corresponding to the required film thickness is calculated based on the solid content of the mixed paint, The amount of paint supplied to 15a is controlled.

次いで図３は、本発明の別の一実施例を説明する概略構成図である。図３は、塗装ブースが複数の場合に対応したものである。塗料タンク１に充填された高粘度塗料は、定量ポンプ２ａ及び２ｂにより三方バルブ３ａ及び３ｂを夫々介して塗料タンク１を中心にして８の字状に循環している。他方塗料タンク６に充填された低粘度塗料は、定量ポンプ７ａ及び７ｂにより三方バルブ８ａ及び８ｂを夫々介して塗料タンク６を中心にして８の字状に循環している。   Next, FIG. 3 is a schematic configuration diagram illustrating another embodiment of the present invention. FIG. 3 corresponds to the case where there are a plurality of painting booths. The high-viscosity paint filled in the paint tank 1 is circulated in the shape of figure 8 around the paint tank 1 through the three-way valves 3a and 3b by the metering pumps 2a and 2b, respectively. On the other hand, the low-viscosity paint filled in the paint tank 6 is circulated in the shape of figure 8 around the paint tank 6 through the three-way valves 8a and 8b by the metering pumps 7a and 7b.

図３に示すように、塗装ブース１８ａ及び１８ｂ内にそれぞれ設けられた塗装雰囲気温湿度センサー９ａ、９ｂ、アネモメータ１９ａ及び１９ｂからの信号と、非接触形の被塗物表面温度センサー１７ａ及び１７ｂからの信号と、中継タンク１２ａ及び１２ｂに設置されたレベルセンサー１３ａ及び１３ｂからの信号がそれぞれコントローラー５ａ及び５bに送られ、中継タンク１２ａ及び１２ｂ中に残る高粘度塗料と低粘度塗料の内訳をもとに、最適な配合比率とこれら塗料の追加充填量がそれぞれ算出され、定量ポンプ２ａ、７ａ、２ｂ及び７ｂにはその流量の指示が、三方バルブ３ａ、８ａ、３ｂ及び８ｂには追加充填量から逆算した吐出時間により流路を切り替えるパイロットエアーのＯＮ／ＯＦＦ時間の指示がそれぞれ送られる仕組みになっている。   As shown in FIG. 3, from the coating atmosphere temperature / humidity sensors 9a and 9b and anemometers 19a and 19b respectively provided in the painting booths 18a and 18b, and the non-contact type surface temperature sensors 17a and 17b. And the signals from the level sensors 13a and 13b installed in the relay tanks 12a and 12b are sent to the controllers 5a and 5b, respectively, and the breakdown of the high-viscosity paint and the low-viscosity paint remaining in the relay tanks 12a and 12b is also obtained. In addition, the optimum blending ratio and the additional filling amount of these paints are calculated, respectively, the flow rate instruction is given to the metering pumps 2a, 7a, 2b and 7b, and the additional filling amount is given to the three-way valves 3a, 8a, 3b and 8b. A mechanism to send pilot air ON / OFF time instructions to switch the flow path according to the discharge time calculated backward from It has become.

特に工業用塗装ラインの塗装ブースにおいて適用可能である。   In particular, it can be applied in a painting booth of an industrial painting line.

本発明の一実施例を説明する塗料供給の概略構成図である。It is a schematic block diagram of the coating-material supply explaining one Example of this invention. 本発明の別の一実施例を説明する塗料供給の概略構成図である。It is a schematic block diagram of the paint supply explaining another Example of this invention. 本発明の別の一実施例を説明する塗料供給の概略構成図である。It is a schematic block diagram of the paint supply explaining another Example of this invention.

符号の説明Explanation of symbols

１ 高粘度塗料タンク
２ａ、２ｂ、７ａ、７ｂ 定量ポンプ
３ａ、３ｂ、８ａ、８ｂ 三方バルブ
４ａ、４ｂ パイロットエアー
５ａ、５ｂ コントローラー
６ 低粘度塗料タンク
９ａ、９ｂ 塗装雰囲気温湿度センサー
１０ａ、１０ｂ マニホールド
１１ａ、１１ｂ ミキサー
１２ａ、１２ｂ 中継タンク
１３ａ、１３ｂ レベルセンサー
１４ａ、１４ｂ 塗装用定量ポンプ
１５ａ、１５ｂ 塗装機
１６ａ、１６ｂ 被塗物
１７ａ、１７ｂ 被塗物表面温度センサー
１８ａ、１８ｂ 塗装ブース
１９ａ、１９ｂ アネモメータ
1 High viscosity paint tank 2a, 2b, 7a, 7b Metering pump
3a, 3b, 8a, 8b Three-way valve 4a, 4b Pilot air 5a, 5b Controller 6 Low viscosity paint tank 9a, 9b Paint atmosphere temperature / humidity sensor 10a, 10b Manifold 11a, 11b Mixer 12a, 12b Relay tank
13a, 13b Level sensor 14a, 14b Coating metering pump 15a, 15b Coating machine 16a, 16b Coating object 17a, 17b Coating surface temperature sensor 18a, 18b Coating booth 19a, 19b Anemometer

Claims (11)

２０℃における粘度が５〜１００ｍＰａ・ｓである低粘度水系塗料と２０℃における粘度が１０５〜１００００ｍＰａ・ｓであり、該低粘度水系塗料に対して１０ｍＰａ・ｓ以上高い粘度である高粘度水系塗料を、被塗物表面温度に対応して塗装に適した配合比率で混合しながら連続的に供給することを特徴とする塗料供給方法。 Ri low viscosity water-based paints and a viscosity at 20 ° C. is 105~10000mPa · s der with a viscosity at 20 ° C. is at 5 to 100 mPa · s, a high viscosity water-based is a high viscosity 10 mPa · s or more to the low viscosity water-based paints A paint supply method, characterized in that the paint is continuously supplied while mixing at a blending ratio suitable for coating corresponding to the surface temperature of the object. 被塗物表面温度の変化に応じて、低粘度水系塗料及び高粘度水系塗料の適性配合比率及びこれら塗料の混合塗料に対する追加量が、該被塗物表面温度及び混合塗料の残量から決められる請求項１記載の塗料供給方法。 Depending on the change in the surface temperature of the object to be coated, the appropriate blending ratio of the low-viscosity water-based paint and the high-viscosity water-based paint and the additional amount of these paints to the mixed paint are determined from the surface temperature of the object to be coated and the remaining amount of the mixed paint. The paint supply method according to claim 1. 低粘度水系塗料及び高粘度水系塗料が、コンテナもしくはドラムで搬入される請求項１または２に記載の塗料供給方法。 The paint supply method according to claim 1 or 2, wherein the low-viscosity water-based paint and the high-viscosity water-based paint are carried in by a container or a drum. 低粘度水系塗料と高粘度水系塗料の配合比率が、塗装雰囲気条件の変化によりさらに制御される請求項１ないし３のいずれか１項に記載の塗料供給方法。 The paint supply method according to any one of claims 1 to 3, wherein the blending ratio of the low-viscosity water-based paint and the high-viscosity water-based paint is further controlled by a change in coating atmosphere conditions. 塗装雰囲気条件が、塗装雰囲気温度、塗装雰囲気湿度及び塗装雰囲気風速のいずれか１種以上の条件である請求項４に記載の塗料供給方法。 The paint supply method according to claim 4, wherein the paint atmosphere condition is one or more of a paint atmosphere temperature, a paint atmosphere humidity, and a paint atmosphere wind speed. ２０℃における粘度が５〜１００ｍＰａ・ｓである低粘度水系塗料と２０℃における粘度が１０５〜１００００ｍＰａ・ｓであり、該低粘度水系塗料に対して１０ｍＰａ・ｓ以上高い粘度である高粘度水系塗料を混合するラインミキサーと、被塗物表面温度、塗装雰囲気温度、塗装雰囲気湿度及び塗装雰囲気風速の変化に応じて、該低粘度水系塗料と該高粘度水系塗料の適性配合比率を、該被塗物表面温度、塗装雰囲気温度、塗装雰囲気湿度及び塗装雰囲気風速から計算する演算装置と、該演算結果によりこれら塗料の定量供給ポンプの吐出量及び吐出時間を制御するコントローラーとを具備することを特徴とする塗料供給装置。 A low-viscosity water-based paint having a viscosity at 20 ° C. of 5 to 100 mPa · s and a high-viscosity water-based paint having a viscosity at 20 ° C. of 105 to 10,000 mPa · s and a viscosity higher than that of the low-viscosity water-based paint by 10 mPa · s or more. a line mixer for mixing, the coating object surface temperature, painting ambient temperature, in accordance with a change in paint atmospheric humidity and coating atmosphere wind speed, the suitability blending ratio of the low viscosity water-based paint and the high viscosity water-based paints,該被coating A calculation device that calculates from the surface temperature of the object, the coating atmosphere temperature, the coating atmosphere humidity, and the coating atmosphere wind speed, and a controller that controls the discharge amount and the discharge time of the fixed amount supply pump of these paints according to the calculation result, Paint supply device. ２０℃における粘度が５〜１００ｍＰａ・ｓである低粘度水系塗料と２０℃における粘度が１０５〜１００００ｍＰａ・ｓであり、該低粘度水系塗料に対して１０ｍＰａ・ｓ以上高い粘度である高粘度水系塗料を混合するラインミキサーと、被塗物表面温度、塗装雰囲気温度、塗装雰囲気湿度及び塗装雰囲気風速の変化に応じて、該低粘度水系塗料と該高粘度水系塗料の適性配合比率を、該被塗物表面温度、塗装雰囲気温度、塗装雰囲気湿度及び塗装雰囲気風速から計算する演算装置と、該演算結果によりこれら塗料の定量供給ポンプの吐出量及び吐出時間を制御するコントローラーとを具備し、該適性配合比率を演算するための入力信号が、被塗物表面温度を検出するセンサーからの電気信号と、塗装雰囲気温度及び塗装雰囲気湿度を検出する温湿度センサーからの電気信号と、塗装雰囲気風速を検出する風速計からの電気信号であることを特徴とする塗料供給装置。 A low-viscosity water-based paint having a viscosity at 20 ° C. of 5 to 100 mPa · s and a high-viscosity water-based paint having a viscosity at 20 ° C. of 105 to 10,000 mPa · s and a viscosity higher than that of the low-viscosity water-based paint by 10 mPa · s or more. a line mixer for mixing, the coating object surface temperature, painting ambient temperature, in accordance with a change in paint atmospheric humidity and coating atmosphere wind speed, the suitability blending ratio of the low viscosity water-based paint and the high viscosity water-based paints,該被coating Computation device that calculates from surface temperature, painting atmosphere temperature, painting atmosphere humidity, and painting atmosphere wind speed, and controller that controls the discharge amount and discharge time of a fixed amount supply pump of these paints according to the calculation result The input signal for calculating the ratio detects the electrical signal from the sensor that detects the surface temperature of the object to be coated, and the paint atmosphere temperature and paint atmosphere humidity. Paint supply apparatus characterized by that the electrical signal from the temperature and humidity sensors, an electric signal from the anemometer to detect the painting atmosphere wind speed. 複数の塗装ブース内の各被塗物に塗料をそれぞれ供給する方法に用いられる装置であって、２０℃における粘度が５〜１００ｍＰａ・ｓである低粘度水系塗料と２０℃における粘度が１０５〜１００００ｍＰａ・ｓであり、該低粘度水系塗料に対して１０ｍＰａ・ｓ以上高い粘度である高粘度水系塗料を混合する各塗装ブースに適する複数の混合塗料を作成するための複数のラインミキサーと、該各塗装ブースの被塗物表面温度、塗装雰囲気温度、塗装雰囲気湿度及び塗装雰囲気風速の変化に応じて、該低粘度水系塗料及び該高粘度水系塗料の適性配合比率を、該各塗装ブースの被塗物表面温度、塗装雰囲気温度、塗装雰囲気湿度及び塗装雰囲気風速から計算する演算装置と、該演算結果によりこれら塗料を夫々供給するための複数の定量供給ポンプの吐出量及び吐出時間を制御するコントローラーとを具備し、該適性配合比率を演算するための入力信号が、該各塗装ブース内の被塗物表面温度を検出する各センサーからの電気信号、塗装雰囲気温度及び塗装雰囲気湿度を検出する各温湿度センサーからの電気信号、及び塗装雰囲気風速を検出する各風速計からの電気信号であることを特徴とする塗料供給装置。 It is an apparatus used for a method of supplying paints to respective objects to be coated in a plurality of painting booths, and a low-viscosity water-based paint having a viscosity of 5 to 100 mPa · s at 20 ° C. and a viscosity of 105 to 10,000 mPa at 20 ° C. A plurality of line mixers for producing a plurality of mixed paints suitable for each coating booth for mixing high-viscosity water-based paints having a viscosity of 10 mPa · s or more with respect to the low-viscosity water-based paints; object to be coated the surface temperature of the paint booth, paint ambient temperature, in accordance with a change in paint atmospheric humidity and coating atmosphere wind speed, the suitability blending ratio of the low viscosity water-based paint and the high viscosity water-based paint, the coating of each of the painting booth An arithmetic device that calculates from the surface temperature of the object, the coating atmosphere temperature, the coating atmosphere humidity, and the coating atmosphere wind speed, and a plurality of quantitative supplies for supplying each of these paints according to the calculation results. A controller for controlling the discharge amount and discharge time of the feed pump, and an input signal for calculating the appropriate blending ratio is an electric signal from each sensor for detecting the surface temperature of the object to be coated in each coating booth A paint supply apparatus comprising: an electrical signal from each temperature / humidity sensor for detecting a painting atmosphere temperature and a painting atmosphere humidity; and an electrical signal from each anemometer for detecting a painting atmosphere wind speed. ２０℃における粘度が５〜１００ｍＰａ・ｓである低粘度水系塗料と２０℃における粘度が１０５〜１００００ｍＰａ・ｓであり、該低粘度水系塗料に対して１０ｍＰａ・ｓ以上高い粘度である高粘度水系塗料を混合するラインミキサーと、該混合塗料の残量が計量できる中継タンクと、被塗物表面温度、塗装雰囲気温度、塗装雰囲気湿度及び塗装雰囲気風速の変化に応じて、該低粘度水系塗料と該高粘度水系塗料の適性配合比率及びこれら塗料の混合塗料に対する追加量を、該被塗物表面温度、塗装雰囲気温度、塗装雰囲気湿度、塗装雰囲気風速及び混合塗料の残量から計算する演算装置と、該演算結果によりこれら塗料の定量供給ポンプの吐出量及び吐出時間を制御するコントローラーとを具備することを特徴とする塗料供給装置。 A low-viscosity water-based paint having a viscosity at 20 ° C. of 5 to 100 mPa · s and a high-viscosity water-based paint having a viscosity at 20 ° C. of 105 to 10,000 mPa · s and a viscosity higher than that of the low-viscosity water-based paint by 10 mPa · s or more. a line mixer for mixing, and a relay tank remaining amount of the coating mix can be weighed, the coating object surface temperature, painting ambient temperature, in accordance with a change in paint atmospheric humidity and coating atmosphere wind speed, the low viscosity water-based paints and the An arithmetic unit for calculating an appropriate blending ratio of the high-viscosity water-based paint and an additional amount of these paints with respect to the mixed paint from the surface temperature of the object to be coated, the painting atmosphere temperature, the painting atmosphere humidity, the painting atmosphere wind speed, and the remaining amount of the mixed paint; A paint supply apparatus comprising: a controller for controlling a discharge amount and a discharge time of the fixed amount supply pump of the paint according to the calculation result. ２０℃における粘度が５〜１００ｍＰａ・ｓである低粘度水系塗料と２０℃における粘度が１０５〜１００００ｍＰａ・ｓであり、該低粘度水系塗料に対して１０ｍＰａ・ｓ以上高い粘度である高粘度水系塗料を混合するラインミキサーと、該混合塗料の残量が計量できる中継タンクと、被塗物表面温度、塗装雰囲気温度、塗装雰囲気湿度、塗装雰囲気風速の変化に応じて、該低粘度水系塗料と該高粘度水系塗料の適性配合比率及びこれら塗料の該混合塗料に対する追加量を、該被塗物表面温度、塗装雰囲気温度、塗装雰囲気湿度、塗装雰囲気風速及び該混合塗料の残量から計算する演算装置と、該演算結果によりこれら塗料の定量供給ポンプの吐出量及び吐出時間を制御するコントローラーとを具備し、該適性配合比率、さらには該混合塗料に対する追加量を演算するための入力信号が、被塗物表面温度を検出するセンサーからの電気信号と、塗装雰囲気温度及び塗装雰囲気湿度を検出する温湿度センサーからの電気信号と、塗装雰囲気風速を検出する風速計からの電気信号と、さらには中継タンクに内蔵されたレベルセンサーからの電気信号であることを特徴とする塗料供給装置。 A low-viscosity water-based paint having a viscosity at 20 ° C. of 5 to 100 mPa · s and a high-viscosity water-based paint having a viscosity at 20 ° C. of 105 to 10,000 mPa · s and a viscosity higher than that of the low-viscosity water-based paint by 10 mPa · s or more. a line mixer for mixing, and a relay tank remaining amount of the coating mix can be weighed, the coating object surface temperature, painting ambient temperature, painting atmospheric humidity, depending on the change in the coating atmosphere wind, the low viscosity water-based paints and the An arithmetic unit for calculating an appropriate blending ratio of high-viscosity water-based paint and an additional amount of these paints to the mixed paint from the surface temperature of the object to be coated, the painting atmosphere temperature, the painting atmosphere humidity, the painting atmosphere wind speed, and the remaining amount of the mixed paint And a controller for controlling the discharge amount and discharge time of the constant-quantity supply pump for these paints according to the calculation result, the appropriate blending ratio, and further the mixed coating The input signal for calculating the additional amount is the electrical signal from the sensor that detects the surface temperature of the workpiece, the electrical signal from the temperature and humidity sensor that detects the painting atmosphere temperature and the painting atmosphere humidity, and the painting atmosphere wind speed. An electrical signal from an anemometer to be detected and further an electrical signal from a level sensor built in the relay tank. 複数の塗装ブース内の各被塗物に塗料をそれぞれ供給する方法に用いられる装置であって、２０℃における粘度が５〜１００ｍＰａ・ｓである低粘度水系塗料と２０℃における粘度が１０５〜１００００ｍＰａ・ｓであり、該低粘度水系塗料に対して１０ｍＰａ・ｓ以上高い粘度である高粘度水系塗料を混合する各塗装ブースに適する複数の混合塗料を作成するための複数のラインミキサーと、該各混合塗料の残量が計量できる複数の中継タンクと、該各塗装ブースの被塗物表面温度、塗装雰囲気温度、塗装雰囲気湿度及び塗装雰囲気風速の変化に応じて、該低粘度水系塗料及び該高粘度水系塗料の適性配合比率及びこれら塗料の該各混合塗料に対する追加量を、該各塗装ブースの被塗物表面温度、塗装雰囲気温度、塗装雰囲気湿度、塗装雰囲気風速及び該各混合塗料の残量から計算する演算装置と、該演算結果によりこれら塗料を夫々供給するための複数の定量供給ポンプの吐出量及び吐出時間を制御するコントローラーとを具備し、該適性配合比率、さらにはこれら塗料の該各混合塗料に対する追加量を演算するための入力信号が、該各塗装ブースの被塗物表面温度を検出する各センサーからの電気信号と、塗装雰囲気温度及び塗装雰囲気湿度を検出する各温湿度センサーからの電気信号と、及び塗装雰囲気風速を検出する各風速計からの電気信号と、さらには該各中継タンクに内蔵された各レベルセンサーからの電気信号であることを特徴とする塗料供給装置。 It is an apparatus used for a method of supplying paints to respective objects to be coated in a plurality of painting booths, and a low-viscosity water-based paint having a viscosity of 5 to 100 mPa · s at 20 ° C. and a viscosity of 105 to 10,000 mPa at 20 ° C. A plurality of line mixers for producing a plurality of mixed paints suitable for each coating booth for mixing high-viscosity water-based paints having a viscosity of 10 mPa · s or more with respect to the low-viscosity water-based paints; a plurality of relay tanks the remaining amount of the coating mix can be weighed, the coating object surface temperature of each of the coating booth, paint ambient temperature, in accordance with a change in paint atmospheric humidity and coating atmosphere wind speed, the low viscosity water-based paint and the high Appropriate blending ratio of the viscosity water-based paint and the additional amount of these paints with respect to each of the mixed paints, the surface temperature of the object to be coated, the paint atmosphere temperature, the paint atmosphere humidity, the paint atmosphere An arithmetic device for calculating from the ambient wind speed and the remaining amount of each mixed paint, and a controller for controlling the discharge amount and discharge time of a plurality of metering pumps for supplying these paints according to the calculation results, An input signal for calculating an appropriate blending ratio, and an additional amount of these paints with respect to each of the mixed paints, an electric signal from each sensor for detecting a surface temperature of an object to be coated in each paint booth, a paint atmosphere temperature, and An electrical signal from each temperature / humidity sensor that detects the painting atmosphere humidity, an electrical signal from each anemometer that detects the coating atmosphere wind speed, and an electrical signal from each level sensor built in each relay tank There is a paint supply device.
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