Paint colour changing block for automatic paint spraying device

摘要

The paint colour changing block (10) is coupled to a number of supply lines (16) for the different paint colours, pressurised air line and a cleaning fluid, with a feed line (19) leading to the spray gun. The control valves (12) for each of the lines are operated by pressurised air control lines, each of the control valves housing a vent opening leading to a vent path (22), provided with a leakage indicator for providing a leakage display. Pref. the vent path has a transparent section and an optical viewing window allowing visual detection of paint particles in the vent air stream.