| 摘要 |
The invention is related to a color changer (10, 80), comprising a base module (12, 82,112) with at least two input channels (14, 16, 18) leading to an output channel (64, 106) for paint material, wherein each of the at least two input channels (14, 16, 18) is provided with an associated paint valve (26, 38, 30) for closing the input channel (14, 16, 18) in the steady state and wherein each of the associated paint valves (26, 38, 30) can be opened by applying an air pressure (38, 40) through a respective associated pilot air channel (32, 34, 36, 114, 116). Each of the associated pilot air channels (32, 34, 36) comprises a blow hole (44, 46, 88, 90, 92) and closing means for closing the blow hole (44, 46, 88, 90, 92), so that applying air pressure (38, 40) causes opening of a respective paint valve (26, 38, 30) only in case that the respective blow hole (44, 46, 88, 90, 92) is closed. |
