| 摘要 |
<p>The cleaning device (B, P, T, R1, R2) is attached at each end to shoulders (S) pivoting on a pair of parallel arms (2) connected to each other by a robust cross member (5), these arms being hinged at the other end to the side walls (F) of the machine. At this hinge end, there pivots on at least one of the arms (2) an assembly of pneumatic actuators (11, 12), which actuators pivot at the other end on a lug (9) integral with one of the shoulders (S) of the cleaning device, which shoulders are provided, on the opposite side from the said lug, with spindles or rollers (6) that run in cam paths (7) formed in plates (8) attached to the said side walls of the printing machine. By means of the assembly of pneumatic actuators (11, 12) and of the said linear cams (7), the cleaning device can be oriented and positioned at will against either of the two cylinders to be cleaned (C1, C2) or can be set in a position remote from both of these cylinders, this position being useful as a rest position and a position for maintenance of the apparatus. Mounted on at least one of the said arms (7) or on both of the shoulders (S) of the cleaning device are idle rollers (16) designed to engage with corresponding cams (D) fitted to the ends of the plate cylinder (C2), across the gap or gaps (G) containing the clamps (E) that hold the plate on this cylinder, so that the cleaning device is moved away automatically whenever it passes over the clamps, thus preventing any interference with these. <IMAGE></p> |
