| 摘要 |
A cutting unit (1) for cutting blanks (3) for collars (2) of rigid cigarette packets, wherein a continuous strip (12) of packing material is fed in a given direction (13) through a cutting station (14) equipped with a knife (18) having an incision member (31) and a blade (30), and with a fixed cutting block (17) having a counterblade (22); the knife (18) oscillates, about a fixed axis (29) crosswise to the travelling direction (13) of the strip (12), to and from a work position in which the incision member (31) cooperates with a contact surface (21) of the cutting block (17) to incise a portion of the strip (12) upstream from the counterblade (22), and the blade (30) is located beyond the counterblade (22) to cut the strip (12) along a cutting line. <IMAGE> |
