A spinning method for wrapping composite yarn and equipment using the method

Abstract

The invention relates to a spinning method of wrapped composite yarns and equipment adopting the spinning method. The spinning method comprises the steps that covering yarns of stable and rotary backing-off are evenly wound around the surfaces of heart yarns moving in constant speed and one direction at fixing wrapping and winding positions, and the stable and rotary backing-off refers to self-rotation line speed of the covering yarns is stable during the backing-off; the spinning equipment comprises a drive device, a heart yarn cylinder, a heart yarn roller, a yarn guide hook, a hollow spindle, a covering yarns pipe, a wrapping and winding point control plate, a composite yarns roller, a yarn guide rod and a collecting device which are arranged in the vertical operating direction of the heart yarn from top to bottom; the wrapping and winding point control plate is a flat plate provided with a circular wrapping and winding point control hole; the drive device is connected with the covering yarns pipe. The spinning method of the wrapped composite yarns and the equipment adopting the spinning method can spin superfine wrapped composite yarns, the raw material adaptability is good, the quality of the wrapped yarns is excellent, yarn unevenness is low, the wrapping and winding point is stable and easy to control, and the fluctuation range of the backing-off point is small.

Description

technical field [0001] The invention belongs to the field of textiles, and relates to a spinning method of wrapping composite yarn and equipment using the method, in particular to a spinning method of composite yarn with filament bundles wrapping superfine metal wires and equipment using the method . Background technique [0002] Wrapped yarns containing metal wires have been widely used in textiles and clothing, machinery and electronics, aerospace, energy conservation and environmental protection, etc., especially ultra-fine metal wire / chemical fiber filament wrapped composite yarns are often used in high-performance textile products and high-tech aerospace components and ultra-thin electronic wires. However, the application of these high-tech fields puts forward strict requirements on the covering performance and evenness quality of the metal wire / chemical fiber filament wrapped composite yarn. At present, the traditional processing method is difficult to meet these requ...

AI Technical Summary

Problems solved by technology

When the core yarn is ultra-fine wire, due to excessive frictional resistance generated by the contact parts during processing, it is prone to wear and end breakage, resulting in instability of the overall wrapping process and reduced production efficiency; the outer wrapping yarn is ultra-fine filament When bundled, because the filament bundle has no twist or weak twist, it is easy to hair and cause end breakage during the rotation and unwinding process

In addition, because the surface friction coefficient of ultra-fine metal wire and ultra-fine filament is small, in order to increase the cohesion between the two, it is necessary to increase the tightness of the outer covering yarn, while the traditional wrapping function is only a rotatable hollow spindle , poor structure, lack of effective wrapping control device, the wrapped yarn structure spun is too fluffy

Moreover, during the wrapping process, the wrapping point is generally inside the hollow spindle tube, which is not conducive to effective control of its displacement. The spun yarn has frequent thick and thin knots and extremely uneven evenness.

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