| 摘要 |
<p>A single cleaning device arranged parallelly between the cylinders (C1, C2), is secured to shoulders (F, F') so as to realize a structure presenting a high resistance to torsion stresses, on the outer side of said shoulders there being provided, integral and projecting, identical pins (1, 1') parallel to the longitudinal axis of the cleaning apparatus and axially aligned with respect to each other, which carry at their ends idle and identical rollers (6, 6') which slide inside rectilinear guides (7, 7') secured to the sides (S, S') of the printing press and directed almost radially with respect to the one of the cylinders to be cleaned (C2) which presents surface gaps (G) which house clamps (E) and are provided with side cams (D). On said pins there are keyed toothed wheels (9, 9'), presenting identical features which tangentially mesh with rectilinear racks (10, 10'), which are identical, fixed and parallel to the said guides (7, 7') and at least one of the said pins (1, 1') or both being rotatably connected to respective brackets (3, 3'), connected to respective actuators (4, 4') for alternate rectilinear motion anchored by their body to the sides (S, S') of the printing machine and parallel to the said racks. By activating the said actuators the cleaning apparatus can be lifted and lowered and simultaneously rotate around the said end pins (1, 1'), so as to remain in a position strictly parallel to the cylinders and so as to be arranged with the cleaning units (P, T) at the level and perpendicularly with respect with either one of the cylinders to be cleaned. On said pins (1, 1') there are coaxially mounted bearings or rollers (2, 2'), presenting a diameter such to cooperate with the side cams (D) of the cylinder presenting the gaps (G), so as to determine the automatic moving away from same of the cleaning means, in contrast to the elastic action of the said actuators (4, 4'), or of parts thereto associated. <IMAGE></p> |
