| 摘要 |
<p>A cutting device for cutting strips of unvulcanized rubber to proper lengths for building a pneumatic tyre, in particular a radial tyre, said device comprising at least one conveyor and a cutting apparatus working crosswise with respect to said conveyor for cutting a strip of unvulcanized rubber, wherein said apparatus for cutting said strip comprises means to vibrate a knife longitudinally to and fro with high frequency e.g. ultrasonic frequency and means to move the knife vibrating longitudinally to and fro along a track crosswise with respect to said strip.</p> |
