SEWING MACHINE CONTROL SYSTEM Russian patent published in 1998 - IPC

FIELD: sewing equipment, in particular, devices for arranging working members in predetermined position. SUBSTANCE: control system has disk with two rows of radial annular slots. Disk is attached on main shaft of sewing machine, optoelectronic couples controlled by slots, stitch counter, memory unit, main shaft angular parameter measuring unit, control unit. Stitch counter input is connected with main shaft angular parameter measuring unit. Inputs of stitch counter and measuring unit are connected with optoelectronic couples. Memory unit outputs are connected to control unit. Control system is further provided with display and zero correction unit, whose inputs are connected with stitch counter, main shaft angular parameter measuring unit and memory unit. EFFECT: increased efficiency in providing strict positioning of working members by obtaining precise data. 2 cl, 4 dwg