A dynamic three-dimensional compact fushun ring spinning method

Abstract

The invention relates to a ring spinning method of dynamic gathering and smoothing in a three-dimensional mode, and belongs to the technical field of textile processing. According to the ring spinning method, at least one strip gathering groove is formed in a front roller, bosses corresponding to the strip gathering grooves are additionally arranged on the outer surface of a front rubber-coveredroller in the circumferential direction, the bosses are meshed with the strip gathering grooves to form a folded front roller jaw, fiber strips enter the strip gathering grooves to be folded and gathered, and tight spinning of the fiber strips is achieved; the fiber strips are output through the folded front roller jaw in a V-shaped mode, the fiber strips continue to be folded, gathered and smoothened through the inner walls of the strip gathering grooves before completely breaking away from the strip gathering grooves, the exposed fiber ends of yarn which is actively gathered while being twisted are positively smoothened and held, yarn hairiness is fully restrained, and the quality of resultant yarn is greatly improved. A device related to the method is simple and reasonable in structure, convenient to use and easy to use and popularize on a large scale.

Description

technical field [0001] The invention relates to a dynamic three-dimensional accumulation Fushun type ring spinning method, which belongs to the technical field of textile processing. Background technique [0002] Hairiness is one of the important indicators to measure the quality of yarn. Yarn hairiness not only affects the production efficiency of post-spinning processes such as weaving and knitting, but also affects the appearance quality of the final product. Especially for the production of high-quality fabrics such as smooth and smooth, reducing yarn hairiness is of great significance. Because hairiness occurs in the spinning process, reducing hairiness in spinning is the basis and key to reducing hairiness. In the spinning process of the traditional ring spinning machine, the drafted sliver is processed into yarn immediately after leaving the front roller with a certain width and in a free state, so a spun yarn is formed in the yarn forming area. In the triangular ar...

AI Technical Summary

Problems solved by technology

However, the negative pressure suction compact spinning process consumes a large amount of negative pressure gas, consumes a lot of energy, and has high operating costs; the negative pressure compacting grid ring is easy to block, and the maintenance cost is high; in addition, the negative pressure compacting equipment is complicated and the installation cost is high. High, negative pressure compact spinning technology has become an aristocratic spinning method

[0004] Aiming at the high cost of installation, use and maintenance of negative pressure compact spinning technology, the China Intellectual Property Office published an invention patent on March 30, 2005, "Stretching Machine for Ring Textile Machine with Fiber Belt Compressor", Patent Publication No. CN1602373A, the public case of this application provides a drafting device and a ring spinning frame with a fiber strand bundler of a ring spinning frame, which are essentially the front rubber rollers and guide rollers on the front rollers of the spinning frame. A groove-type beard concentrator is installed between the yarn cots to mechanically gather the fiber beard before twisting, which solves the cost brought about by the negative pressure compact spinning device using negative pressure to gather the fiber beard too high problem

However, the spinning method and device provided in this application still have defects: spinning can only be carried out under the condition that the fiber strands do not traverse, and the spinning cots are easy to wear and have a short service life.

Therefore, although this application solves the problem that the sliver cannot traverse in the process of mechanical compact spinning to a certain extent, it also brings new technical problems: using a groove-type sliver bundler to collect and spin the yarn separately, and canceling the pair of yarn delivery rollers. The uniform and consistent guiding effect of the sliver, the jumping of the sliver caused by the tension makes the sliver escape from the groove of the sliver concentrator, resulting in the inability to continuously and uniformly concentrate spinning, so this technical device has not been applied industrially.

[0005] At present, only RoCos has a small range of applications in some spinning mills in China for the compact spinning technology of grooved mechanically concentrated fiber strands; at present, the core problems of static grooved compacted spinning that have not been applied in a large area are: 1. ) The groove remains stationary in the direction of yarn running, and the moving fiber whiskers rub against the edge of the inner wall of the stationary groove. Under the action of the inner wall of the stationary groove, the front hooks of the edge fibers increase while they are gathered horizontally. The hairiness of the spun yarn is smooth, but the evenness and strength have little improvement, or even worsened; 2) The existing mechanical groove compact spinning is only the horizontal accumulation of flat strip-shaped fiber strands. The yarn triangle area becomes smaller or disappears, and the internal and external transfer of fibers in the yarn forming area is lacking, resulting in increased yarn stiffness and worsened softness; 3) There is sliding friction between the grooved strand bundler and the fiber strands, and the friction force is relatively large. Therefore, the grooved strand bundler is generally made of self-lubricating zirconia ceramics, which is not only expensive, but also easily damaged

[0006] Aiming at "during the groove compact spinning process, the groove remains stationary in the yarn running direction, and the moving fiber whiskers rub against the edge of the inner wall of the stationary groove, and at the same time, the horizontal accumulation is carried out under the action of the inner wall of the stationary groove, There are more hooks in front of the edge fiber, although the hairiness of the spun yarn is smooth, but the degree of improvement in evenness and strength is small, and even deterioration occurs.” The technical problem of the invention patent published by the China Intellectual Property Office on May 28, 2014 A Rotary Compact Spinning Fiber Gathering Device", Patent Publication No. CN103820893A, the application provides a rotary compact spinning fiber gatherer, the core component is a fiber wheel groove type concentrator driven by external force; because the wheel groove The fiber bundler is driven by the moving yarn to passively rotate and collect the fiber strands. The situation that the moving fiber strands rub against the edge of the inner wall of the groove to produce hooks can only be alleviated to a certain extent, and it still cannot completely eliminate the edge fiber. The generation of hooks improves the yarn quality

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