A kind of high-efficiency spun yarn production method

Abstract

The invention discloses an efficient fine yarn production method. The efficient fine yarn production method comprises the working steps of opening picking, cotton carding, drawing, roving and spinning and is characterized in that rough yarns with the 10-13g / 10m fixed quantity are fed and spun to be 60-100S yarns, a drafting type ultra-large drafting spinning frame with four rollers and four leather collars is adopted in the spinning working step, a large forwarding part is adopted in a middle region of the ultra-large drafting spinning frame, a double-pressure bar upper pin is adopted in a rear region, and a large forwarding part upper pin is adopted in a front region. In the spinning working step, a four-roller lattice apron type tight spinning system is added on the drafting type ultra-large drafting spinning frame with four rollers and four leather collars, the large forwarding part is adopted in the middle region, the double-pressure bar upper pin is adopted in the rear region, and the large forwarding part upper pin is adopted in the front region, so that effective control of fiber motions in the drafting process of fed rough yarns in the rear region, the middle region and the front region is achieved, the resultant yarn levelness is remarkably improved, high-quality fine yarn production during feeding of large-fixed-quantity rough yarns is achieved, and the production efficiency is improved.

Description

technical field [0001] The invention relates to the new technical field of ring spinning, in particular to a high-efficiency spun yarn production method using heavy quantitative roving feeding. Background technique [0002] Ring spinning, which achieves twisting through spindle rotation, is the most traditional spinning method, and it is also the most widely used and most common spinning method in the market. The technology is very mature. New spinning technologies, such as rotor spinning, air-jet spinning, etc., especially air-jet spinning, have completely changed the twisting mechanism of ring spinning by using high-speed swirling airflow to make fiber bundles false-twisted and wrapped into yarns, but these new spinning methods There is still no substitute for ring spinning in terms of raw material availability and overall yarn quality. Therefore, ring spinning is still the most important method of spun yarn production. The production of high-quality spun yarn by improvi...

AI Technical Summary

Problems solved by technology

In particular, the current domestic mainstream ring spinning frames all adopt the three-roller two-zone drafting form, the drafting ratio is limited, the spinning efficiency is low, and it is impossible to realize the production of high-count yarns under general quantitative or heavy quantitative roving.

[0003] With the continuous increase of market competition and the gradual strengthening of investment in structural adjustment of my country's textile industry, more and more attention has been paid to the method of using heavy quantitative roving feeding to achieve high-efficiency spinning. The elongation is limited, heavy quantitative spinning cannot be realized, and the spinning efficiency is low

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