| 摘要 |
<p>A device for cutting or perforating one or more webs of material (1) arranged on top of one another comprises a laser beam (19) that is angled and passes through an optical device (22). The device comprises a drum (12) with a slot (13) which is parallel to the axis of rotation (14) of the drum (12). The drum (12) rotates at a peripheral speed corresponding to the speed of the web of material (1) which is bent round the drum (12). The laser beam (19) extends into the drum, aligned with the axis of rotation (14) of the drum (12), and is angled and conducted out through the cutting device (21) which is arranged inside the drum (12). The cutting device (21) is reciprocable along a guide (25), so that the cutting device (21) cuts along the slot (13) where the web of material (1) is accessible. The laser beam is conducted through a casing (17, 23).</p> |
