| 摘要 |
<p>Device for cutting yarns and light fabrics in textile machines, comprising a shear (3) with a fixed blade (32) and a mobile blade (30), wherein the mobile blade (30) is fixed on a shaft (2) held up by a support (1) and oscillated about its longitudinal axis by means of a corresponding actuator. Said actuator generates an oscillatory magnetic field which, by magnetically hooking a permanent magnet (45) associated with said shaft (2), that is a magnetic component with fixed polarity associated with shaft (2) , produces an oscillating motion of said shaft about its longitudinal axis and consequently an oscillating motion of said mobile blade.</p> |
