| 摘要 |
<p>A cylinder (14, 16) is described for a printing machine of the type comprising at least one first printing cylinder (14), placed in contact with at least one opposing cylinder (20), at least one second printing cylinder (16), placed in contact with the first printing cylinder (14), and a plurality of ink rollers (10), placed in contact with the first printing cylinder (14). The cylinder (14, 16) is provided, at least one of its lateral ends, with one or more rigid abutment rings (26), each of such rigid abutment rings (26) being mounted on the cylinder (14, 16) by means of the interposition of one or more rolling bearings (28) which allow the rigid abutment rings (26) to remain stopped, or to rotate with different speeds, during the rotation of the cylinder (14, 16) around its own axis (A).</p> |
