Patent ID: 9126240
Filing Date: 2015-09-08
Classification: B05B,B05D,B08B

Abstract:
1. An intermediate storage device of an electrostatic coating system, comprising: a cylinder which is provided between a paint supply source and a coating gun and stores paint; a piston which can slide inside a cylinder chamber of the cylinder, wherein the cylinder chamber is formed inside the cylinder; and a driving source which drives the piston, the intermediate storage device further comprises: a first hole which is open to the cylinder chamber and is connected to the paint supply source; a second hole which is open to the cylinder chamber and is connected to the coating gun, wherein the first hole and the second hole are arranged on mutually opposite sides of a circumference of the cylinder, and an opening diameter of the first hole and an opening diameter of the second hole are different so as to improve cleaning efficiency of the cylinder chamber; a first cleaning device having a first cleaning valve for controlling a supply of a cleaning fluid and drying air by a flow in a first direction toward the first hole so as to clean the cylinder chamber by supplying the cleaning fluid from the first hole and discharging from the second hole waste fluid that has undergone cleaning; a second cleaning device having a second cleaning valve for controlling the supply of the cleaning fluid and the drying air by a flow in a second direction toward the second hole so as to clean the cylinder chamber by supplying the cleaning fluid from the second hole and discharging from the first hole waste fluid that has undergone cleaning; and a switch device that switches between cleaning performed by the first cleaning device and cleaning performed by the second cleaning device.