Production method of twisting more than six single glass fiber yarns into one strand

Abstract

The invention discloses a production method of twisting more than six single glass fiber yarns into one strand. The production method includes the steps of firstly, twisting a first number, not larger than 6, of single glass fiber yarns into a primary twisted yarn; secondly, twisting a second number, not larger than 6, of single glass fiber yarns into a secondary twisted yarn; thirdly, twisting a third number of the primary twisted yarns and a fourth number of the secondary twisted yarns into a twisted yarn, wherein the sum of the third number and the fourth number is not larger than 6. During the twisting process, the twisted yarns are twisted again after twisting to produce the final twisted yarn, and the utilization rate of a twisting unit is increased. In addition, idle primary twist position or doubling and twisting position are avoided, and the utilization rate of the twisting unit is further increased.

Description

technical field [0001] The invention relates to the technical field of double-twisted single yarns, in particular to a production method in which six or more glass fiber single yarns are parallel-twisted into one strand. Background technique [0002] Glass fiber is an inorganic non-metallic material with excellent performance. There are many kinds. The advantages are good insulation, strong heat resistance, good corrosion resistance and high mechanical strength, but the disadvantages are brittleness and poor wear resistance. It is made of glass balls or waste glass through high-temperature melting, wire drawing, winding, weaving and other processes. The diameter of its single filament is several microns to more than 20 microns, which is equivalent to a hair. 1 / 20-1 / 5 of that, each bundle of fiber precursors consists of hundreds or even thousands of monofilaments. [0003] Currently used in glass fiber single yarn double-twist equipment, the highest number of double-twisted ...

AI Technical Summary

Problems solved by technology

This production process has the following shortcomings, that is, when the number of parallel twists exceeds the number of parallel twists of the equipment, the utilization rate of the equipment will decrease. For example, there are 6 initial twist positions and 1 parallel twist position on each ingot, and the largest The number of twists is 6 and 1, and each spindle can make a roll of products. When we need to twist 7 strands of glass fiber single yarn into 1 strand, then we need two spindles. When the number of spindles on the equipment is 112 spindles In fact, two ingots are needed to make one roll of product, and the actual number of products is 56 rolls, which greatly reduces the utilization rate of the equipment

At the same time, the 5 initial twisting positions and 1 parallel twisting position of one of the spindles are not utilized, which reduces the utilization rate of the equipment

[0004] Similarly, if there are 4 primary twist positions and 1 parallel twist position on each spindle, the maximum number of parallel twists of the spindle is 4 and 1, and each spindle can make a roll of products, we need to combine 7 strands of glass fiber single yarn When twisting into one strand, two ingots are needed. When the number of ingots on the equipment is 112, two ingots are actually needed to make one roll of products. The actual number of products is 56 rolls, which greatly reduces equipment usage

At the same time, 1 initial twisting position and 1 parallel twisting position of one of the spindles are not utilized, which reduces the utilization rate of the equipment

Images