| 摘要 |
PURPOSE:To simplify the constitution of a system and to perform teaching only once, by making it possible to perform the blowing of air and painting through the change-over operation of a change-over valve by one painting spray gun. CONSTITUTION:The air blow control by a microcomputer system 4 is performed so that atomizing air is supplied through a three-port/2-position change-over valve 3 in such a state that a needle 51 is closed through a three-port/2-position change-over valve 2 to stop the supply of a paint. In this case, the paint is not injected from a paint spray gun 50 and dust can be blown off by the air blow due of atomizing air. The control of painting is performed in succession to the air blow control process or so as to interpose a stop period and not only atomizing air is injected but also the needle 51 is opened through the three-port/2-position change-over valve 2 to supply the paint. By this method, the atomized paint is injected.
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