Drive for tongues on warp knitting machine with compound needles

摘要

A warp knitting machine with compound needles has a differential pattern drive for the tongue bar (21 provided through a differential link (23) swinging between an eccentric drive (3) and a control drive (4). The pattern cam (42) of the control drive (40 is synchronised with the eccentric drive (32) and provides the motion required by the tongue bar (21) to produce the required stitch pattern.