Rotor spinning machine double-impurity-discharging carding device combined with charge balance and application

Abstract

The invention provides a rotor spinning machine double-impurity-discharging carding device combined with charge balance and application, and relates to the technical field of spinning equipment. The double-impurity-discharging carding device comprises an air supplementing channel and a carding cavity impurity discharging area which are arranged corresponding to the lower portion of a carding cavity; an impurity stripping channel inclining downwards is formed in the lower portion of a carding roller through an impurity stripping surface; the impurity stripping channel comprises an effective fiber area, a coiling back suction area and a free impurity falling area; impurities in the coiling back suction area are discharged through an impurity suction opening in the impurity stripping surface; and a charge release area and a traction area are arranged corresponding to the coiling back suction area; the charge release area enables impurities in the coiling back suction area to be electrified by releasing net charge substances, the traction area adsorbs the electrified impurities to move towards the traction area, and the electrified impurities are sucked and discharged when passing through an impurity suction port. Free impurity falling and precise impurity absorption are organically combined, the charge release area and the traction area are used for assisting precise impurity absorption, and the device has the advantages of being wide in raw material adaptability, good in yarn forming quality consistency and low in energy consumption.

Description

technical field [0001] The invention relates to the technical field of spinning equipment, in particular to a double row and carding device for a rotor spinning machine combined with charge balance and its application. Background technique [0002] The rotor spinning machine has become the spinning form with the most mature technology, the widest application range and the largest economic and social effects in the new spinning. The rotor spinning machine is mainly composed of rotor cup, false twist disc, yarn guide tube, yarn guide roller, fiber conveying channel, cotton feeding roller, carding roller, miscellaneous discharge device and other components. It utilizes the centrifugal force when the rotor rotates at high speed , so that the fibers transferred from the carding cavity to the rotor are condensed to form whiskers (fiber rings), which are then twisted to form yarns. The working process of the rotor spinning machine can be summarized as follows: the cotton sliver en...

AI Technical Summary

Problems solved by technology

However, this method has the following disadvantages: On the one hand, since a relatively high gettering negative pressure is required to strip the impurities along the horizontal direction, small fluctuations in the gettering negative pressure will lead to changes in the number of impurities removed, which in turn will lead to fine details of yarn formation. Large variation; on the other hand, there are disadvantages of high energy consumption of equipment and easy blockage of gettering channels

This method has a longer fiber transfer channel to the rotor, so that the fibers are fully straightened, the yarn formation consistency is better, and the energy consumption is low, but there are the following defects: in the process of impurity separation, the short fibers and other light fibers Impurities are not far away during separation and are closer to the fiber conveying area. Under the action of negative pressure airflow in fiber conveying, they are easy to accumulate in the peeling area and then suck back into the carding chamber, resulting in rollback and backsuction

The higher the impurity content, the more serious the phenomenon of turning and sucking back, which will lead to an increase in yarn breakage rate and a decrease in quality, making this mode less adaptable to recycled raw materials with more short-pile impurities

[0006] In summary, the existing method of carding and stripping impurities in rotor spinning machines cannot improve the adaptability of raw materials, the consistency of yarn quality, and low energy consumption. Aiming at the above difficulties in the existing spinning machine market, how to provide a spinning mode that can not only increase the adaptability of raw materials, but also ensure good yarn quality consistency and low energy consumption is a Current technical problems that need to be solved urgently

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