Method and device for weft insertion of suspended projectile shuttle driven by electromagnetic force

Abstract

The invention discloses an electromagnetically driven levitation projectile weft insertion device, which comprises a magnetic levitation weft insertion sley system. Both sides of the magnetic levitation weft insertion sley system are provided with a multi-stage electromagnetic casting drive system. Two-way weft insertion auxiliary devices are provided on the outside of the three-stage electromagnetic feeding drive system. The two-way weft insertion auxiliary devices include yarn tension compensators, yarn storage devices, brakes, cutters and weft feeders. Coils are arranged inside the braking drive system. The invention aims at the problem that it is difficult to greatly improve the weaving efficiency of projectile looms based on the traditional process principle, and adopts a multi-stage electromagnetic drive method to complete projectile projection and braking of the projectile loom. The "zero transmission" high-speed magnetic levitation frictionless weft insertion of "generation machine". The research not only omits the complex mechanical transmission mechanism of twisting shaft picking, but also breaks through the bottleneck problem of the weaving efficiency of wide-width fabrics in principle.

Description

technical field [0001] The invention relates to the technical field of textiles, in particular to an electromagnetically driven suspension gripper weft insertion method and device. Background technique [0002] The projectile loom uses a sheet-like shuttle body as a weft inserter, and each loom has several projectiles to sequentially introduce the weft yarn into the shed from the weft supply side of the loom. The shuttle picking power of the projectile loom comes from the elastic potential energy stored when the torsion shaft is twisted, and then the shuttle picker swings back quickly to instantly eject the projectile. The shuttle making process is realized by the oil pressure buffer block 22, and the projectile shuttle completes shuttle selection, shuttle picking, shuttle making, and handover in turn to realize a warp and weft yarn knitting action cycle. p and the potential energy U stored in the torsion shaft, the picking efficiency formula of the torsion shaft can be ded...

AI Technical Summary

Problems solved by technology

[0003] Due to the high impact force of the torsion shaft picking principle, high friction energy consumption of the mechanism, and high noise, it leads to low machine speed, narrow width (width <5.4m), low weft insertion rate (weft insertion rate <1200m / min), etc. Therefore, it is difficult to greatly improve the weaving efficiency of looms on the basis of existing process principles

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