| 摘要 |
<p>Device to block the weft yarn - to be associated to measuring weft feeders for fluid jet looms, just downstream of the outlet yarnguide and/or of the antiballoon device of said feeders - comprising, into a single elongated body (1): an inlet cone (3) and a cylindrical channel (4), crossed by the weft yarn (F), the common axis of which is the longitudinal axis (2) of said device; a core (5) to block the yarn (F), movable into a guide (6) perpendicularly to said axis (2) and apt to penetrate into said channel (4) through an opening (7) thereof; electromagnetic means (8) acting on said core (5) against a return spring (9); and a bush (11) associated to said channel (4), in correspondence of said opening (7), to form a contrast surface (10) onto which said core (5) engages in order to block the yarn (F).</p> |
