Abstract:

Aiming at the problem of the modern warp knitting electronic jacquard control system using of the formation of power-off defective fabric due to the loss of weave position after restarting, which is caused by unexpected power failure in the operation state, the rotation period of the spindle was subjected to the jacquard motion angle zoning first, and then according to the spindle angle position information after power-on of the system, the jacquard offset information and yarn-laying code executed just at the breakpoint, the jacquard bias state and the traverse cam track completed before the breakpoint, the section data for the preloaded jacquard information and the remaining segment data of the traverse cam track after the breakpoint, were inversed, the inverse control algorithm of the jacquard system was designed and studied, and the algorithm was verified by the RJ6/2 warp knitting machine successfully. The results showed that the problem can be solved successfully by the key control algorithm of the jacquard control system, proving the inverse control algorithm is accurate and feasible.

Key words: warp knitting, electronic jacquard, electronic yarn-laying, breakpoint continuous weaving