Yarn controller for guiding yarns before twisting in spinning

Abstract

The invention discloses a yarn controller for guiding yarns before twisting in spinning. The yarn controller for guiding the yarns before twisting in spinning comprises a needle fixing seat, a needle seat shell and a needle, the outside of the needle fixing seat is conical, a spiral surface which changes in an involute mode from the small end to the large end is formed in the outer wall of the needle fixing seat, the needle fixing seat is integrated with a conical hole in the needle seat shell after matching, a reverse conical hole is formed in the lower end of the needle seat shell and communicated with the small end of the conical hole, a needle hole is formed in the needle fixing seat, the needle is placed in the needle hole, the lower end of the needle extends out of the needle fixing seat and is fixed in the needle hole after passing through the reverse conical hole to be placed at the outside of the needle seat shell, a groove for mounting a sealing ring is formed in the outer circumference of the lower end of the needle seat shell, and a flange located with a nozzle is formed at the lower head face of the needle seat shell. Through forming the spiral surface on the needle fixing seat in the involute change mode, yarns can be stably conveyed into a spinning mechanism along the spiral surface by air current, the spiral surface is narrow, when the speed is high, the fiber convergence is good, the upward twist transmission of the twisted fiber is avoided, and thick and thin yarns are reduced.

Description

technical field [0001] The invention belongs to the technical field of textiles, and in particular relates to a yarn controller used for yarn guiding before spinning and twisting. Background technique [0002] Fully automatic intelligent (air-jet vortex) spinning machine is a highly automated and intelligent spinning equipment that integrates the functions of roving frame, spinning frame and automatic winding machine. It is at the leading level of contemporary spinning technology and has not been seen in China. Mature products are sold in bulk in the market. During the spinning process, the yarn controller guides the fibers into the air-jet spinning mechanism (nozzle and the inner hole of the spindle) along the helical trajectory, and prevents the reversed fibers from passing to the front roller to form a free end, ensuring that the longer fibers form the core Yarn, staple fiber yarn is wrapped on the core yarn, the parameters of the helical surface and the length and thick...

AI Technical Summary

Problems solved by technology

The angle between the tangent on the surface and the lower tangent of the helical surface is called the helix angle of the helical surface. The size of the helix angle will affect the convergence of the fiber bundle in motion and is related to the thickness of the formed yarn. The helix angle is 50°-70°. As mentioned above, because the helix surface is too straight, the fibers are widely distributed on the helix surface. At high speed, the convergence of the fibers is poor, and it is easy to form coarse details and reduce the yarn strength. , therefore, it is necessary to improve

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