A device for directional stretching and synergistic softening of winding yarn hairiness

Abstract

The invention relates to a device for directionally stretching, collaboratively softening and winding drafted fibers of yarns and belongs to the textile processing technical field. The device of the invention is composed of a base, a false twisting device, a heating device and a drafted fiber directional stretching device; the false twisting device and the heating device are located at two ends of the upper surface of the base; the ironing yarn running surface of the heating device is parallel to the false twisting hollow shaft of the false twisting device; the ironing yarn running surface is higher than a highest level section where the bottom of a second yarn guide wheel groove in the false twisting hollow shaft by 0 to 5 mm; the drafted fiber directional stretching device is located at one side of the heating device; the false twisting device makes the trunk of a yarn running on the ironing yarn running surface rotate; the drafted fiber directional stretching device directionally stretches and fully softens the drafted fibers of the yarn running on the ironing yarn running surface, so that the drafted fibers of the yarn can wrap the rotating trunk of the yarn obliquely and orderly, and therefore, and the drafted fibers can be prevented from being entangled to from neps when randomly or vertically winding the trunk of the yarn, so that fiber aggregation can be avoided. The device has the advantages of reasonable structure, convenient operation and easiness in popularization and application.

Description

technical field [0001] The invention relates to a device for directional stretching and synergistically softening the hairiness of winding yarns, which belongs to the technical field of textile processing. [0002] technical background [0003] Hairiness is one of the important indicators to measure the quality of yarn. Yarn hairiness not only affects the production efficiency of weaving, knitting and other post-processes, but also affects the appearance quality of the final product. Especially today, when high-speed shuttleless looms are widely used, reducing yarn hairiness is of great significance. [0004] Yarn hairiness occurs in the spinning process. The mechanism is that after the end of the fiber transferred from inside and outside is exposed to the yarn body, it breaks away from the grip of the jaws and cannot re-enter or wrap around the main body of the yarn body, forming hairiness. The hairiness increases in the winding and warping process. The root cause is that t...

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Problems solved by technology

[0008] It can be seen that the above-mentioned yarn hairiness control for the yarn use process such as winding, warping, knitting, etc., the common point of the existing methods is: false twisting or air blowing of the yarn under the condition of not actively holding the head end of the hairiness Wrapping, winding most of the hairiness protruding from the surface of the yarn in a loose form, and sticking to the yarn surface, the dense structural connection between the hairiness fiber and the yarn body cannot be formed, and the reduction of hairiness can only be achieved visually ;Aiming at the form of untwisting-twisting, in the process of attaching hairiness, the local twist of the yarn is dynamically transferred and redistributed, and the weak twist appears, which is easily stretched by the yarn tension and deteriorates the evenness of the main body of the yarn

More importantly, in the subsequent process, as the yarn is rubbed by the machine parts, the fibers that are loosely wound and attached to the surface of the yarn are easy to protrude out of the surface of the yarn again to form hairiness, which is harmful to the yarn in the subsequent process. The processing of the process and the quality of the final product (especially the quality of knitted products) have not improved substantially

[0009] In view of the above problems, the Chinese patent number is ZL 201410204503.0, and the publication date was May 15, 2014. The name of the invention is a method for actively holding and rotating the surface of the yarn to improve the surface structure. Hold the surface hairiness of the yarn, and at the same time tightly wind the holding hairiness on the yarn trunk; practice has proved that this method can effectively reduce the hairiness of the yarn surface, but there are still fatal technical problems similar to the previous methods of reducing yarn hairiness by winding methods : When the hairiness is entangled in the yarn body, the yarn strength after reducing the hairiness will not improve much, and the yarn defects such as thick places and neps will increase greatly due to fiber aggregation, and the corresponding fabric appearance defects will increase

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