APPARATUS FOR ELIMINATING DEFECTS DURING LAYING OF FILLING THREAD IN DRUM OF SPINNING MACHINE, METHOD AND SPINNING MACHINE PROVIDED WITH SUCH APPARATUS

摘要

FIELD: spinning machine accessories. SUBSTANCE: dosing device 1 is adapted for dosing and withdrawal of filling thread 7 from reserve member 2 and feeding it to spinning machine in coordination with spinning cycle. Filling thread feeding device 4 positioned behind thread accumulator 4a guides thread 7 in predetermined direction. Length of laid filling thread 7 is determined by number of revolutions of feeding roller 40. Apparatus further serves to eliminate defects of filling thread. When feeding of filling thread between spool of reserve member 2 and filling thread feeding device 4 is ceased due to thread break or full running of thread from spool, it is detected by detector 46,46a and roller 40 feeds thread 7 from thread accumulator 4a for time interval allowing filling thread to be completely laid in spinning machine. Filling thread 7 is then cut at side of laying the thread in spinning machine and the latter is urged to be stopped. Filling thread 7 left in filling preparing unit 6 is withdrawn by roller 40 and fed into refuse thread store 55. Thus apparatus 1 is free of thread remains and is ready to resume automatic thread laying operation. EFFECT: increased efficiency, simplified construction and enhanced reliability in operation.