Mechanism for effecting guide bar lapping movement in warp knitting machines

摘要

A mechanism for effecting guide bar lapping movement in warp knitting machines comprises a double-acting piston-in-cylinder servo arrangement 11 connected to the guide bar 12 by a rod 19 provided with spherical bearings 21 at both ends to accommodate the transverse swinging of the bar as it passes the guides between the needles but to give a zero-play connection in the lapping direction. A displacement transducer 22 is provided and the mechanism is controlled by a computer or data processor. The servo arrangement is connected to the rod 19 through a yoke 15 and rod 16. This enables plural guide bars driven by respective mechanisms to be located more closely together than the respective piston-cylinder devices.