Automatic Stop Motion Systems in Knitting
topic
Knitting machine stop motion systems detect yarn breaks through mechanical drop wire, photoelectric beam interruption, or tension sensor monitoring on each yarn feed position, triggering immediate machine stop within one course of fault detection to minimise the length of fabric with dropped loops or run defects caused by the missing yarn, with stop motion sensitivity settings balancing rapid fault detection against false stops from yarn tension fluctuations.
Role
Prevents the extension of fabric defects from yarn breaks beyond the minimum detectable length by stopping the machine within one course of fault occurrence, with stop motion speed and sensitivity being the primary determinants of defect length at each yarn break that governs the proportion of fabric requiring repair versus discarding in knitting production quality management.