A spinning device for producing low-twist yarn

Abstract

A spinning device for producing low-twisted yarn, comprising a ring spinning machine and a false twist device, the false twist device is placed between the output roller pair and the yarn guide hook of the ring spinning machine, and the false twist device is arranged on Directly above the yarn guide hook, the yarn guide angle between the output roller pair and the false twist device is at a fixed angle. The invention has the advantages of simple structure of the spinning device, convenient and low-cost transformation of the existing ring spinning machine and good quality of the prepared yarn.

Description

technical field [0001] The invention belongs to the field of fiber yarn spinning, in particular to a low-torque ring-spun yarn spinning device, which enables the yarn to maintain a stable low torque. Background technique [0002] Existing twisting is an important part of short fiber spinning. During twisting, the yarn will generate a large amount of residual torque, which will have a great influence on the quality of subsequent products. For example, in knitted fabrics, due to the change in the internal torsional stress of the yarn, the loops of the fabric will rotate and release the internal torsional stress. As a result, one end of it will lift and protrude from the surface of the fabric, while the other end will stay inside the fabric. This deformation of the loops will increase the curvature of the fabric and produce a deformation like rib effect which is much to be avoided. [0003] At present, there are two main methods to reduce the residual torque of yarn: permanen...

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Problems solved by technology

[0007] In order to obtain low-torque ring-spun yarn, it is necessary to improve the existing ring-spun spinning method and spinning device, and there have been many studies on this, trying to achieve the goal with the traditional method of reducing the residual torque of the yarn, such as the Chinese patent Document CN1453401A discloses a single-ply torque-free ring-spun yarn processing method and equipment, which proposes to obtain a torque-free yarn on a traditional ring spinning machine through the above-mentioned physical method of reducing the residual torque of the yarn, and the structure is improved. The main point is to install a false twist device and a yarn splitting device between the output roller pair and the yarn guide hook of the existing ring spinning device, but the structure of the spinning device such as the false twist device provided by it is very complicated, which is inconvenient to manufacture and Use; especially the up and down movement of the guide hook on the ring spinning machine will cause the change of the guide angle a, and the set false twist device also needs to follow the up and down movement of the ring plate, which not only makes the whole spinning device very It is complicated, and the yarn cannot get stable false twist effect, the spinning effect is poor, the cost is high, and it is not suitable for the actual needs of the existing industrial production ring spinning machine

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