METHOD FOR ADJUSTING TIGHTENING FORCE OF THREAD MOVABLE BEHIND FRICTION-TYPE REEL OF FREEZING MACHINE Russian patent published in 1997 - IPC

FIELD: manufacture of textured threads in spinning machine. SUBSTANCE: method involves measuring and regulating tightening force of movable thread so that tightening force is converted into control signal; using this signal to determine and regulate twisting process, advancement of thread from initial rolls to outlet rolls and force acting upon thread; selecting regulation range so that change in signal value does not cause development of forces deteriorating thread quality in the zone of twisting. Thread tightening parameters must be within selected ratio (P/Y). EFFECT: increased efficiency and improved quality of thread. 2 dwg