Abstract:

Low cost automatic detection of ring spinning yarn breakage has been an urgent problem of spinning. In view of the problem, use directional pick up head as sensor to collect 5 cycles’ sound signal produced by friction of traveler and ring. According to the distribution of sound signals’ 5 high peak , which produced by normal spinning and spinning breakage , is uniform or not to judge whether the yarn is broken ends. The results show that the voice signal collected by normal spinning has 5 higher uniform distributed main peaks, whereas the voice signal collected by spinning breakage does not have the characteristics. The detection and analysis method in this paper can precisely identify the spindle which has broken ends, and it’s a low cost, non contact detection method in aspect of ring spun yarn breakage detection.

Key words: ring spinning, broken yarn detecting, sound sensor, embedded