Coating material supply device.

摘要

A coating material supply device in which coating material is supplied under pressure at a predetermined flow rate to a coating machine (2), wherein the device comprises: double-acting reciprocal pumping means (3A, 3B) connected to the coating machine (2) and having an inlet (4) for coating material supplied from a coating material supply source (1) and an exit (6) for discharging the coating material by the pressure of a hydraulic fluid and means for closing the flow channel (7A, 7B) on the side of the inlet (4) for the coating material when the coating material is discharged from the exit (6) and means for closing the flow channel (8A, 8B) on the side of the exit (6) when the coating material is supplied to the inlet (4). Coating material even at a high viscosity, such as two-component coating material, can be supplied at a constant flow rate with no fluctuations to the coating machine (2). The device is suitable for application use, e.g., multicolor coating machine.