| 摘要 |
A station for checking labels, in particular auto-adhesive labels, in a labeling machine, cooperates with a control unit and has a working group (9) for removing defective labels (3a) from a label carrier band (4). The working group (9) has a knurled roller (9a) idling on a rotation axis and disposed inside a related windowed casing (9b) freely supported by an axle of the knurled roller (9a). The windowed casing has a vertical plate (16) with upstream and downstream edges (9c,9d). A tightening roller (10), also idling on a rotation axis, guides the band (4) in cooperation with the adjacent working group (9), while a collecting group (70) cooperates with the working group (9) for collecting defective labels (3a) removed from the band (4). The windowed casing (9b) is operated, on command from the control unit (C), by an actuator (6) and moves from a rest configuration (B), with the band (4) completely guided by the knurled roller (9a) and tightening roller (10), to a working configuration (A), with the band (4) engaged by the downstream edge (9d) of the plate (16). <IMAGE> |
