HOUSEHOLD STITCHING-OVERSTITCHING MACHINE Russian patent published in 1997 - IPC

FIELD: textile manufacturing. SUBSTANCE: machine has base working units like needles, kickers, cloth moving device with stitch length and differential gear adjustment units, cloth edge cutter, blank holder and fibre feeder. Needle mechanism has multi-unit hinge link, eccentric axle for needle vertical position control and needle driver fixed at hole made in machine body so to permit needle position adjusting along slot of needle slab. Cloth feeder is composed by two identical unit, one of them serves for base lath pass adjustment, second serves for gear adjustment of differential rack. Edge cutter upper knife is spring loaded with respect to lower one and it is fixed by screw from needle side at hold-carrier. Cloth clamping work makes by hold-down strip gripping at lever by hinge link. Lower stitcher needle feeding track has additional horizontal double-eye fibre feeder and motionless fibre lead placed between fibre feeder and lower stitcher. This construction permits to perform up to four thread stitching-overstitching operations by changing needle loom up of lover stitcher. Machine body is made simpler and it has body and platform, in body there are needle mechanism, stitcher, cloth edge cutter, cloth clamper and fibre feeding mechanism. Platform has cloth moving mechanism. EFFECT: advanced construction of household stitching-overstitching machine. 8 cl, 5 dwg