Device for improving spun yarn quality by utilizing eddy nozzle and applications

Abstract

A device for improving the spun yarn quality by utilizing an eddy nozzle belongs to the technical field of textile engineering. The nozzle consists of a yarn channel, an air channel and a yarn guider, is installed on a rack of a spinning machine and positioned between a front roller and a yarn guide hook. When the device is used, yarns passing through the center of the yarn channel are subjected to the action of compressed gas in the air channel which forms a certain angle with the yarn channel and is tangent with the yarn channel. Eddy is formed by air flow sprayed into the yarn channel from the air channel, the yarns with more yarn hairness are untwisted and are rewrapped, so that the yarn hairness is effectively reduced, and meanwhile, the yarn evenness and strength of the spun yarns can be improved. The device has the advantages that the installation is convenient, the equipment transformation cost is low, and the industrialization prospect is good.

Description

technical field [0001] A nozzle that uses a vortex nozzle to improve the quality of spun yarn is called a vortex nozzle. The invention belongs to the technical field of textile engineering and relates to a novel device for reducing hairiness of ring spinning yarn and improving yarn quality. Background technique [0002] Ring spinning frame is currently the most widely used spinning method in the world, accounting for more than 90% of the total number of spinning spindles. The technology is mature, the spinning quality is stable, and the range of trial spinning yarn numbers is wide. In the ring spinning drafting system, the drafting force in the pre-drawing zone will untwist the yarn, and the drafting force in the main drafting zone will stretch the untwisted fiber bundles to the required fineness. The cohesion between the fibers in the bundle is basically eliminated, and the fiber bundle presents a certain width, but the twist transmitted through the traveler cannot all ent...

AI Technical Summary

Problems solved by technology

But the disadvantages are: large equipment investment, high fixed cost and start-up cost, complex mechanism, and difficult transformation; (3) Sirospun, this technology has a certain effect on reducing yarn hairiness and improving yarn quality, but it is limited (4) Air-jet ring spinning (Jet-ring spinning), which improves hairiness by installing a nozzle on the spinning frame, but the nozzle uses four micro-holes whose axes are on the same plane. Generating eddy currents to reduce hairiness requires high processing precision, and the strength of the yarn produced by this method is lower than that produced by ordinary ring spinning, so it is difficult to promote industrialization

[0004] In the applicant's previous patent (application number 201010579831), the use of the vortex nozzle with the air channel and the yarn channel perpendicular to each other to improve the hairiness of the yarn has a certain effect, but the improvement of the yarn strength is not obvious

Images