Processing method and device for spinning single yarns of plied yarn structures on ring spinning frame and yarns

Abstract

The invention relates to a processing method for spinning single yarns of plied yarn structures on a ring spinning frame. A twisting mechanism arranged at the front ends of a front leather roller and a front roller is adopted; the twisting mechanism consists of the twisting leather roller and the twisting roller which do rotary motion and reciprocating motion; fibers arranged in parallel in fiber strands are twisted under the friction action of the twisting mechanism to form pre-added twisting orientation; two bundles of pre-twisted ring spun staple fiber yarns subjected to twisting treatment are output through a twisting jaw composed of the twisting roller and the twisting leather roller; and the two bundles of pre-twisted ring spun staple fiber yarns are converged and plied in a triangular twisting area under the action of twisting force of cohesive twisting and internal torque force of slivers subjected to twisting finishing, so that the single yarns of the plied yarn structures integrating main body double-strand spiral type and local twisting cohesive type are formed, the strength, abrasion resistance and flexibility of the yarns are improved, the technological process of doubling and plying of the single yarns are reduced, the application range is wide, the operation is convenient, and the large-area popularization and application are facilitated.

Description

technical field [0001] The invention relates to the technical field of textiles, in particular to a spinning method and a device and a yarn for spinning single yarn with a strand structure on a ring spinning frame. Background technique [0002] Ring spinning technology belongs to grip-end spinning, which is widely used because of its strong adaptability of raw materials and wide range of production varieties, but there are also disadvantages such as excessive yarn hairiness, insufficient strength, poor hand feeling, difficult quality control, and low efficiency. . In the traditional twisting process of ring spinning, the twist is generated by the movement of the traveler, and the twist is transmitted from bottom to top to the twist point after generation. During the twisting process, the fiber at the nip of the front roller rotates around the axis of the strand, so that the width of the strand gradually decreases, and the two sides are folded to form a twisting triangle. I...

AI Technical Summary

Problems solved by technology

Chinese Patent No. CN101979733B, publication date 2010.11.15, the name of the invention is a method for producing hemp high-count yarns and strands by siro spinning or siro fil spinning, by twisting the siro blended yarn in reverse, After forming strands, remove vinylon to obtain high-count strands of hemp, or remove vinylon from the blended yarn, reverse ply and twist to obtain high-count strands of hemp, but post-processing is required and the operation is complicated, which is not universal

Chinese Patent No. CN106676689B, publication date 2016.11.14, invention name is compact siro spinning yarn auxiliary device and compact siro spinning yarn method, the roving feeding position is adjusted through the bell mouth traverse mechanism, reducing the wear of the top roller , to ensure the quality of the yarn, but this method cannot adjust the twisted wrapping structure of the fiber

However, the method of producing low-torque yarns by using the method of siro spinning to produce strand-style yarns, because the force of the false twister on the yarns is perpendicular to the direction of movement of the yarns, it is extremely harmful to the yarn trunk. In addition, the yarn structure produced by this method still has low degree of internal and external transfer of fibers, poor fiber cohesion, low yarn strength, and many technical problems such as yarn hairiness have not been fundamentally resolved. Complex process, high mechanism cost and inconvenient operation

[0006] The mechanical properties of the yarn are not only an important index to measure the quality of the yarn, but also determine the quality and efficiency of the subsequent production and processing of the yarn. It is necessary to do double-ply single yarn, and combine two single-ply yarns into a spiral double-ply or multi-ply yarn structure to greatly increase yarn strength, but the doubling process increases production costs and reduces production efficiency. There is a need for a new type of structural yarn that can be directly spun on ring spinning to meet the structural characteristics of double-ply yarns and yarn strength

Images