Electromagnetically driven suspended projectile shuttle wefting insertion method and device

Abstract

The invention discloses an electromagnetically driven suspended projectile shuttle wefting insertion device, which comprises a magnetic suspension type wefting insertion sley system, wherein a multi-stage electromagnetic switch-in driving system is arranged at each of the two sides of the magnetic suspension type wefting insertion sley system; the outer side of each multi-stage electromagnetic switch-in driving system is provided with a two-way wefting insertion auxiliary device; each two-way wefting insertion auxiliary device comprises a yarn tension compensator, a yarn storage device, a brake device, a shearing device and a weft transmission device; a coil is arranged inside each multi-stage electromagnetic switch-in driving system. By aiming at the problem that the weaving efficiency is difficult to be greatly improved by a gripper loom in an aspect of a conventional process principle, the multi-stage electromagnetic driving method is used for completing the projectile shuttle projection and braking; the existing mechanical shooting-in principle is changed; the zero-transmission high-speed magnetic suspension type friction-free wefting insertion using electricity for replacing machinery is realized. Through the study, a complicated mechanical transmission mechanism during the torsion shaft shooting-in is omitted; in addition, the bottle neck problem of wide-width fabric weaving efficiency is solved in the principle aspect.

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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