Electronic drive control in a rapier loom

摘要

Electronic and computer techniques, together with individual servomechanisms, were used successfully in this study to develop the electronic weft selection, electronic let-off and electronic take-up motion systems of the rapier loom. The control system configuration, operating principle, and mathematical models of electronic drives system were analyzed. The synchronization among all mechanical motions, and an improved algorithm for the warp let-off tension control were discussed. The study indicates that constant warp tension is guaranteed as the diameter of the warp beam goes from full to empty. Also, the required weft density is obtained by the electronic box, and the flexibility, reliability and properties of the rapier loom are improved.