| 摘要 |
<p>A machine for cutting a continuously extruded tube into segments of lesser and predetermined length, comprising: -means (33) for actuating sliding means (3) that are movable along a guide (30) parallel to a direction (20) of advance; said sliding means (3) comprising a first and a second station (31, 32) for cutting the tube which in turn comprise respectively a first and a second shearing cutter (311, 312). To the first shearing cutter (311) is associated a first cutting plane (310) transverse to the direction (20) of advance of the tube, to the second shearing cutter (312) is associated a second cutting plane (320) that is transverse to the direction (20) of advance of the tube and distal from the first cutting plane (310);-means for measuring the relative displacement between said tube and said first and second cutting plane (310, 320) along the direction (20) of advance of the tube;-control means commanding said actuating means (33) of said sliding means (3) according to the desired length of the segments produced by the machine (1) and according to the information provided by said measuring means.</p> |
