Abstract: The electromagnetic launch technology has shown a great potential application in the industrial equipment.In order to solve the problem that the weft insertion is difficult in the development of the super width loom,the weft insertion method based on the electromagnetic launcher technology for the super width loom is proposed innovatively.The clip weft device motion model is established on the basis of weft insertion process requirement.Analyzes and designs the structure of the electromagnetic launch weft insertion mechanism,the analysis and calculation model is established for the initial launch velocity,electromagnetic launch force and the weft insertion mechanism structural parameters,mainly including coil number of ampere turns,launch current,coil length etc.During experiment,the electromagnetic launch coil length is 500 mm,the initial velocity is 65 m/s,reached the expected design target.

Key words: weft insertion mechanism, electromagnetic launch, loom, magnetic field analysis