| 摘要 |
<p>A yam gripping and cutting device, particularly for striping yam fingers for knitting machines or the like, comprising an element (2) for holding the yam (3) which has a laminar body having, on one of its sides, a recess (6) adapted to receive the yam (3) to be gripped and cut. Laterally to the holding element (2), on mutually opposite sides, there is respectively a gripping element (4) and a cutting element (5). The holding element (2) and the gripping element (4) are pushed elastically toward each other on their mutually facing sides. The holding element (2) is movable with respect to the gripping element (4) and to the cutting element (5) along an actuation direction (7) to pass from a standby position, in which the recess (6) is arranged at least partially outside the space occupation of the gripping element (4) and of the cutting element (5) in order to receive the yam (3) to be gripped and cut, which straddles the recess (6) transversely to the actuation direction (7), to a retention position, in which the recess (6) is retracted between the gripping element (4) and the cutting element (5) to perform, in succession, the retention of a portion of the yam (3), by way of its traction between the mutually facing sides of the holding element (2) and of the gripping element (4), and the cutting of the yam (3), by way of the interference of the yam (3) with the cutting element (5), and vice versa. The device comprises spacing means (11), which are interposed between the holding element (2) and the gripping element (4) in order to limit the extent of the stresses on the yam (3) during its traction between the holding element (2) and the gripping element (4).</p> |
