Device for improving quality of spun yarn by means of vortex dual-spraying pipe and application thereof

Abstract

The invention relates to a device for improving the quality of ring-spun yarn by means of vortexes introduced into the device. The device is composed of a round yarn channel and two round air channels tangent to the round yarn channel and therefore is called a vortex dual-spraying pipe. The vortex dual-spraying pipe has the advantages of being simple in structure, convenient to operate and low in machining cost. The vortex dual-spraying pipe can be directly installed between a front roller and a guide wire of a traditional ring spinning machine. When the vortex dual-spraying pipe is used, air flow is introduced through the air channels and makes spiral motions in the yarn channel. Furthermore, the design of the dual-spraying pipe enables the air flow field in the yarn channel to be more stable and evener, and therefore fibers on the yarn can be well folded, bent and wrapped in the body of the yarn. Therefore, the number of long fibers on the surface of the yarn is effectively reduced, and other performance of the yarn is improved to a certain degree at the same time.

Description

technical field [0001] A nozzle for reducing yarn hairiness by using vortex is called a vortex double nozzle. The invention belongs to the technical field of textile engineering and relates to a novel device for improving the quality of spun yarn. 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 enter the front jaw line, and the width of the ...

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 accuracy, 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; (5) single nozzle ring spinning, This technology also improves hairiness by installing a nozzle on the ring spinning frame. The nozzle consists of a yarn path and a vertical and tangential air path, which is easy to process and relatively low in cost. There is a lot of loss, resulting in a decrease in yarn fineness, so it needs to be further improved

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