| 摘要 |
<p>A web slitter includes a ultrasonic horn (1) and a plurality of laterally spaced anvil rollers (2) coacting with the ultrasonic horn (1) for dividing a web including a thermoplastic synthetic resin into a plurality of narrower strips of web. The anvil rollers (2) are movable toward and away from the ultrasonic horn (1) independently of each other. A plurality of drive mechanism (5 - 7) are operatively connected with the anvil rollers (2), respectively, for driving the latter.</p> |
