| 摘要 |
Printing cylinder supporting unit for a printing machine, with a supporting frame ( 27 ) aid supporting means mounted on said supporting frame for rotatably supporting one of several printing cylinders ( 1 ), which are designed so that in the operating state they make contact along a contact line ( 6 ) with a substrate ( 3 ) that is to be printed, which printing cylinders ( 1 ) can have different diameters, the supporting means comprising at least three supporting bearings ( 11.1, 12.1, 13.1 ), each of which interacts at the position of a bearing point with the hearing surface ( 5 ) of a bearing ring fixed concentrically on the printing cylinder ( 1 ). The bearing points lie on a common circle with variable diameter. The supporting bearings are movable in such a way that the bearing points move along lines that have a fixed position relative to the supporting frame ( 27 ), which lines intersect each other at a fixed reference point lying on the same common circle and in the operating state lying in a plane that is defined by the contact line ( 6 ) and the center point of the common circle. |
