Untwisting drawing device

Abstract

The invention discloses an untwisting drawing device which comprises a miniature high-speed motor, a speed control and display system, a rotation direction converter and an untwisting drawing device, wherein the miniature high-speed motor is connected with the speed control and display system; the miniature high-speed motor is also connected with the untwisting drawing device through the rotation direction converter; the untwisting drawing device comprises a fixed cylinder, a ball bearing, a rolling shaft, rolling shaft switching teeth and switchers; the inside of the fixed cylinder is connected with the rolling shaft by the ball bearing to form an integer; multiple rolling shaft switching teeth are formed on the rolling shaft; and multiple switchers are arranged at the middle of the rolling shaft. According to the device, the count limit of yarn in the existing spinning technique can be overcome, the count of the yarn is increased by an after-spinning drawing manner without being limited by fiber types and spinning manners, the chemical or wet treatment is not needed, and the yarn subjected to untwisting drawing is softer and has low torque.

Description

technical field [0001] The invention belongs to the field of textile engineering, and in particular relates to a yarn untwisting and drafting device. Background technique [0002] The drafting device of the roving frame and spinning frame is one of the most important links in the spinning process. The drafting ratio and the thickness of the yarn after drafting directly determine the quality of the yarn and ultimately the grade of the woven fabric. During the drafting process, the fibers will overcome static friction and move as uniformly as possible, resulting in as uniform fiber bundles and smooth yarns as possible. However, due to the uneven fiber thickness, inconsistent length, the influence of fiber adhesion, the existence of floating fibers and the uneven interaction with the draft roller in the traditional spinning machine, the draft ratio and yarn quality are seriously affected, resulting in There are many yarn breakages, high hairiness and low count, so it is diffic...

AI Technical Summary

Problems solved by technology

However, due to the uneven fiber thickness, inconsistent length, the influence of fiber adhesion, the existence of floating fibers and the uneven interaction with the draft roller in the traditional spinning machine, the draft ratio and yarn quality are seriously affected, resulting in Many yarn breakages, high hairiness, low count, it is difficult to meet the requirements of uniform and smooth yarn

[0003] At present, although some patents have done a lot of work on increasing the drafting ratio and improving the yarn quality as much as possible, such as the Kepa drafting device, the INA-V drafting device, the four-apron drafting device, etc., but due to the use of For the improvement of the existing drafting device, it is difficult to achieve effective drafting and high multiple drafting by increasing the uniformity of roller action and reducing the broken end rate.

There are also several patents that use methods such as pressure bar untwisting, compressed air untwisting, and spinning machine after-use drafting and untwisting devices. However, due to passive untwisting, the efficiency and effect are poor, and it is difficult to meet the quality requirements of high-grade yarns. , especially after spinning short and thin fibers like cashmere, no matter how you adjust it, you can't get finer yarns

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