| 摘要 |
<p>The subject of the invention is a device for butt-joining and for welding, by means of a laser beam (11), two coils (1, 2) of metal strips (sheets), characterised in that it comprises means for unreeling (3) and for reeling-up (9) the coils (1, 2), a system (7) for accumulating the strip of the first coil (1), means (4) for detecting the trailing end (1a) of the first coil (1) and the leading end (2a) of the second coil (2), means (5) for shearing the trailing end (1a) of the first coil (1) and the leading end (2a) of the second coil (2), means (6a, 6b) for guiding and supporting metal strips, a system (10) for positioning and holding the edges of the trailing end (1a) of the first coil (1) and of the leading end (2a) of the second coil (2) to be welded together on the axis of the laser beam (11) and a laser-beam welding system which can move in the junction plane formed by the edges of the said coils to be welded. <IMAGE></p> |
