COATING APPARATUS

摘要

PROBLEM TO BE SOLVED: To change a coating liquid into a mist and apply the coating liquid continuously at a low cost even when the amount of coating is very small by automatically and stably supplying the coating liquid without troublesome work of adjusting a liquid flow rate regulating valve or the like each time when opening diameters of a jetting hole and a spraying nozzle of processing cutters are changed. SOLUTION: The coating apparatus comprises an air passage 31 for introducing air supplied from an air source and guiding the same to a discharge side, an oil passage for introducing an oil O supplied from an oil container 11 and conveying the oil to an oil supply passage 39 provided in the halfway part of the air passage 31 so as to mix the oil with the air A flowing in the air passage 31 and a flow rate regulating part 27 provided in a halfway part of the air passage 31 for changing the differential pressure produced in the oil passage 39 corresponding to the flow rate of discharged air.