Device for reducing yarn hairiness by utilizing vortex nozzle and application

Abstract

The invention discloses a device for reducing yarn hairiness by utilizing a vortex nozzle, and belongs to the technical field of textile engineering. The device is called the vortex nozzle for short. The vortex nozzle mainly comprises a yarn channel and an air channel, is arranged on a stander of a spinning frame and is positioned between a front roller and a guide wire. When the vortex nozzle is used, a yarn which passes through the center of the yarn channel is subjected to the action of air flow in the air channel which is vertically tangential to the yarn channel. Vortex is formed by the air flow injected into the yarn channel from the air channel, so that the yarn with much hairiness is subjected to the action of untwisting and re-twisting; therefore, the hairiness is effectively reduced; meanwhile, the evenness and strength of the yarn are improved. The device has a simple structure, low cost for equipment transformation, and high development and application value, and is convenient to install.

Description

technical field [0001] A nozzle for reducing yarn hairiness by using vortex 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 yarns. 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 ...

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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

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