Rotor spinning unit capable of eliminating vortex

Abstract

The invention relates to a rotor spinning unit capable of eliminating a vortex. The rotor spinning unit comprises a vortex eliminating channel, the vortex eliminating channel comprises a fiber transmission channel and a bypass channel communicating with the atmosphere; the central axis of the bypass channel and the central axis of the fiber transmission channel are on the same straight line, the bypass channel is located in the opposite direction of the fiber transmission direction of the fiber transmission channel; and a fiber transmission channel inlet for separating the fiber transmission channel from the bypass channel is formed in one side of the vortex eliminating channel, the vortex eliminating channel is connected with a corresponding gap of a carding roller shell through the fiber transmission channel inlet, then the vortex eliminating channel communicates with a rotor in the rotor spinning unit, the other side of the vortex eliminating channel is a straight side without a gap, the area A of a bypass channel hole of the bypass channel, an increment delta Q of air flow flowing in the rotor, an actual negative pressure Pin in the rotor and a set negative pressure P in the rotor meet the numerical relationship as follows: A=-52.72+7.6 deltaQ-0.0039 Pin and delta Q=5.8-0.0006 P, the bypass channel is additionally arranged to directly supplement air, the vortex of the spinning unit is eliminated, and the fiber straightness is improved.

Description

technical field

[0001] The invention relates to the textile field, in particular to a rotor spinning device for eliminating eddy currents. Background technique

[0002] As a new spinning technology, rotor spinning has the advantages of short process, high efficiency and labor saving. In the process of rotor spinning, after the fiber slivers are combed into single fibers by the saw teeth of the carding roller, they need to be stripped off from the saw teeth of the carding roller by airflow, and transferred to the rotor coagulation groove by airflow to complete the spinning process. yarn. The air flow characteristics in this part of the spatial region where the stripping area of ​​the opening roller transitions to the fiber delivery channel is the key to affecting the fiber shape. Poor air flow will deteriorate the fiber shape, increase fiber hooks, winding, folding in half, etc., and reduce the yarn quality. The structure of the fiber delivery channel and the opening rolle...

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