Double-twist spinning method

Abstract

The invention relates to a double-twist spinning method and belongs to the technical field of textile. The method adopts the follwing steps: a double-twist winding mechanism is arranged in front of adrawing system of a spinning machine, the double-twist winding mechanism consists of a double-twist structure and a winding mechanism, the winding mechanism is positioned in a yarn storage tank of thedouble-twist structure, a drawn fiber strip is output through a front roller nipper and then twisted to form a yarn, the yarn is warped by a guide wire, enters a yarn inlet pipe, a yarn running pipeand a yarn outlet pipe and runs to the tensioner, under the rotating action of a twisting disc with a rotating speed of n revolutions / min, the yarn running from the front roller nipper to the tensioner section obtains 2n twists per minute, under the action of the tensioner, the tension of the yarn is drawn out from the yarn outlet pipe, and then wound through the winding groove drum to form the drum yarn package. By adopting the method, the ring twisting and pipe winding mode of the ordinary spinning machine are changed, the double-twist spinning is adopted, thereby greatly improving the twisting efficiency, the spinning quality and the uniformity; by adopting a drum yarn winding mode, the spinning yarn package is increased, and the production efficiency is improved.

Description

technical field [0001] The invention relates to a spinning method, in particular to a two-for-one twist spinning method, which belongs to the technical field of textiles. technical background [0002] Spinning is the process of orderly arranging the messy loose fibers in sequence, such as opening, carding, drafting, etc., and then performing linear convergence and twisting. Different twisting methods directly determine the structure and efficiency of the yarn produced by spinning. Usually, the twist spinning forms are divided into two types: holding end twisting and free end twisting. Twisting at the holding end can limit the control of fiber strands for mandatory cohesion and twisting, and has the advantages of high cohesion between fibers, high yarn strength and good wear resistance, such as ring spinning technology with large quantity and wide range twisted form. However, the speed of ring spinning is low, generally more than ten meters per minute. The main reason is t...

AI Technical Summary

Problems solved by technology

The technology of this device is essentially to add a drafting mechanism and a roving hanging mechanism to the yarn storage tank on the stationary spindle of the two-for-one twisting mechanism; because the roving package is long and the drafting system is complicated, the device is difficult to operate when spinning. The large yarn balloon affects the yarn quality, resulting in poor practicability and low application and promotion value of this technical device

Therefore, there is currently no technology to solve the contradiction between high-speed spinning and twisting of spun yarn and high-quality production, and the technical problem that the spinning frame cannot be packaged.

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