| 摘要 |
<p>In an embossing unit (1), sheet material (2) is fed between a first and at least one second embossing roller (3, 4) rotating in opposite direction and having first and second outer embossing tips (11, 12) respectively, and at least the first embossing roller (3) has a metal core (21) covered with a ceramic cylindrical jacket (22) connected integrally to the metal core (21) and having the first embossing tips (11) on the outside; the first embossing roller (3) being angularly integral with at least one first gear (19) which meshes with a corresponding second gear (20) angularly integral with the second embossing roller (4); and angular connection of the first gear (19) to the first embossing roller (3) being adjusted micrometrically to time the two embossing rollers (3, 4) with respect to each other, so that, in use, the first embossing tips (11) are maintained at all times in a position meshing with the second embossing tips (12).</p> |
