Bushing for preparing industrial-grade spun yarns and industrial-grade spun yarn preparation method

Abstract

The invention discloses a bushing for preparing industrial-grade spun yarns. Novel discharge spouts are distributed on a bottom plate. The production efficiency is greatly improved at the same time of ensuring that the product quality is not reduced. The discharge spouts on the bottom plate of the bushing are distributed in a manner of a fillet parallelogram array consisting of 10 columns and 11 rows; and the fillet parallelogram array is an array formed by respectively removing the same number or different number of discharge spouts on four corners from a parallelogram array consisting of the discharge spouts. The number of the discharge spouts in the array is only about half of that of the traditional fillet matrix consisting of 13 columns and 16 rows, so that the arrangement of the array on the brushing is more flexible, the symmetry of the matrix arrangement on the bushing is increased more easily, and the bushing is more suitable for a production process of the industrial-grade spun yarns. Meanwhile, the subsequent process of the bushing production is correspondingly improved in the invention.

Description

technical field [0001] The invention relates to a bushing for glass fiber drawing and a preparation method using the bushing, in particular to a bushing for preparing industrial-grade spun yarns and a method for preparing industrial-grade spun yarns using the bushing. Background technique [0002] Industrial grade spun yarns are usually continuous glass fibers made from "E" glass. It is mainly used for weaving industrial grade cloth, and can also be used for industrial purposes such as the production of bulked yarn and twisted yarn. Its features include: adding coupling agent or coupling agent and starch mixed type sizing; stable raw silk linear density; good fiber cohesion, moderate softness, good abrasion resistance and high tensile strength. [0003] The common manufacturing method of glass fiber is to discharge multiple bundles of molten glass from the heating bushing, draw the glass bundles into fibers, send them to the oiler to coat the fibers with sizing agent, and t...

AI Technical Summary

Problems solved by technology

[0005] In the process of producing such industrial-grade spun yarn (such as G150 industrial-grade spun yarn), due to the low production capacity of the 800-hole bushing plate, the economic benefits are generally low, and it is no longer suitable for expanded production.

Studies have found that simply increasing the number of bushing holes will cause problems in the subsequent process such as difficulty in wire drawing, uneven single fiber diameter, glass crystallization, woolen yarn, broken yarn, etc., which will reduce the quality of spun yarn, and will not only fail to improve production efficiency , but reduces the product quality

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