| 摘要 |
<p>There is described an apparatus (1) for joining at least two membranes (2) along a joining line (2a) comprising a sonotrode (3) suitable to vibrate with frequencies close to ultrasounds and to produce heating of the membranes (2) along the joining line (2a), a movement unit (4), suitable to allow feed and mutual contact of the membranes (2) along the joining line (2a), a cutter (5), suitable to cut the membranes (2) along the joining line (2a); the movement unit (4) being suitable to produce joining of the membranes (2) along the edge (2c) of these membranes (2) and along the joining line (2a) by means of mutual contact of the heated edges (2c).</p> |
