An untwisting twister, an ultrafine yarn spinning machine, and an ultrafine yarn spinning method

Abstract

The invention provides an untwisting and twisting device. The untwisting and twisting device comprises an L-shaped base, the L-shaped base is internally provided with a sleeve bearing, one end of a copper coin base sleeve penetrates through the inside of the sleeve bearing, and the other end of the copper coin base sleeve is internally provided with an M-shaped copper coin base and H-shaped rubberroll clamping bases. The M-shaped copper coin base is internally provided with a pair of paralleled clamping rubber rolls, and the two ends of the clamping rubber rolls are limited by oblique groovesin the side face of the M-shaped copper coin base and the H-shaped rubber roll clamping bases. Two clamping base springs are installed between the H-shaped rubber roll clamping bases and the copper coin base sleeve; two opposite holes are formed in the outer side of the copper coin base sleeve, two copper coin base positioning bolts are symmetrically arranged in the holes, and positioning holes matched with the copper coin base positioning bolts are formed in the upper face and the lower face of the M-shaped copper coin base. The invention further provides a superfine yarn spinning machine and a superfine yarn spinning method. The untwisting and twisting device is simple in structure, simple and reliable in motion and low in production cost, and has a potential speed-up space and a good application market.

Description

technical field [0001] The invention relates to a spinning device, in particular to an untwisting and twisting device, and an ultra-fine yarn spinning machine using the untwisting and twisting device. The invention also relates to an ultra-fine yarn spinning machine. The method belongs to the technical field of textile machinery and textile methods. Background technique [0002] Ring spinning is currently the most common spinning method on the market, and ring spinning yarn is also the most widely used yarn. In the process of ring spinning, the roving is firstly drafted by the rollers, then loose fiber bundles are formed at the nip of the front rollers, twisted by the triangular area to form spun yarns, and finally wound onto the bobbin driven by the traveler. Although ring spinning is very mature, with the development of modern technology, ring spinning has gradually revealed some shortcomings, such as low spinning speed, more labor, high production cost, etc., so a variet...

AI Technical Summary

Problems solved by technology

Existing technology can further reduce these values, but the evenness of the yarn will deteriorate

[0004] At present, ultra-fine yarns are generally obtained by ring spinning, and the core is to use a large draft ratio, which also leads to damage to the fibers in the yarn and deterioration of the yarn evenness

Increasing the drafting multiple within a certain distance increases the speed difference between the front and rear ends of the fiber and the acceleration of the front end of the fiber. If the breaking strength of the fiber is not enough to withstand this force, it will break; and the sharp speed change will also intensify. In addition to the weakening of the control force on the floating fibers, the weakening of the control force is especially obvious on the hook fibers, which will lead to the randomness of the radial distribution of the fibers, that is, the deterioration of the fiber evenness

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