PAINT SYSTEM WITH COLOR CHANGE CANISTERS

摘要

A paint system (20) comprises a paint supply system (22) supplying paint to a paint spray system (24). A transport assembly is provided, such as a rotatable magazine (26) for a multitude of interchangeable containers (28) for a coating machine which containers are filled at a location separated from the coating machine and are removed from the magazine at a discharge point and supplied to the coating machine and, after use, are again returned to the magazine. The coating machine includes a spray device mounted at an outer end of a moveable spray arm (58). The arm includes a housing into which filled containers are inserted and a piston rod which engages a piston in the container to force paint out of the spray device. A meter measuring the relative position of the piston rod determines the volume rate of paint flow based upon the rate of change of the position of the piston rod.