Rotor spinning method and device adopting three-cotton-sliver asynchronous input and multi-stage carding

Abstract

A device of a rotor spinning method adopting multi-stage carding comprises a spinning system and a computer control system. The spinning system comprises a feeding carding mechanism, a condensing twisting mechanism and a rolling forming mechanism. The device is characterized in that the feeding carding mechanism comprises three-rotation-freedom-degree combined cotton feeding rollers and multiple stages of carding rollers, the speed ratio of three of the three-rotation-freedom-degree combined cotton feeding rollers is adjustable, and the linear density and blending ratio of rotor spun yarn are regulated and controlled randomly.

Description

technical field [0001] The invention belongs to the field of rotor spinning in the textile industry Background technique [0002] The basic principle of rotor spinning yarn is: the cotton sliver is held by the cotton feeding plate and the cotton feeding roller from the bell mouth, and the cotton feeding roller rotates and transports the cotton sliver to the carding area; the carding roller pair rotating at high speed in the carding area The sliver is opened, stripped, combed, separated, and mixed to make it into single fibers that are separated from each other and arranged in parallel and enter the cotton conveying channel; Under the action of the centrifugal force of the cup, the fibers are further superimposed and mixed in the condensation tank, drawn out from the parent yarn and twisted by the twister to form a yarn. [0003] The patent "a method, device and product of rotor spinning mixed color yarn" (application number CN201410190891.1) and "a rotor spinning mixed colo...

AI Technical Summary

Problems solved by technology

However, there are two problems in this invention: first, in the invention, it is only conceptually proposed that the mixed-color and segment-color spinning yarns with constant linear density can be realized by coupling drafting, and it is not given how to realize the constant linear density through coupling drafting. Changing the Mixing Ratio and Color Mixing Ratio

Simultaneously, specific implementation scheme and embodiment are not provided

Second, the patent application still uses a traditional single carding roller. When three cotton slivers are fed at the same time, the original carding and drafting system cannot fully complete the stripping, carding, mixing and decomposition of multiple cotton slivers. stretching, which will lead to insufficient decomposition of the fiber bundle, resulting in blocking of the opening roller and rotor cup, and the spinning is prone to defects such as end breaks, slubs, and neps.

The main problem is that the yarn density and blending ratio of the production line do not change, and the main problem is that two or more fibers cannot be blended in any proportion in the rotor spinning process.

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