Multichannel rotor-spinning fiber feeding device and method

Abstract

The invention relates to a multichannel rotor-spinning fiber feeding device and method. The multichannel rotor-spinning fiber feeding device and method aim at solving the problems that finished products, namely, yarns of multichannel rotor-spinning fibers are uneven in thickness degree, the number of broken ends is large, and the fiber finished-product quality is poor. The multichannel rotor-spinning fiber feeding device comprises a plurality of asynchronous feeding rollers for allowing spun fiber strips to be fed in a one-to-one mode when a mechanism runs, and also comprises a collection feeding roller, a carding roller, a rotor cup and a doffing roller for doffing finished-product fibers after being blended by the rotor cup, wherein fiber strips can sequentially pass through the set feeding roller, the carding roller, the rotor cup and the doffing roller. According to the multichannel rotor-spinning fiber feeding device and method, a cradle pressurizing device and leather-ring control devices corresponding to the asynchronous feeding rollers in a one-to-one mode are also arranged on the asynchronous feeding rollers for effectively guiding and controlling fibers, and the fibers are easy to control accordingly; it is guaranteed that the fibers are even in drafting and controllable, the yarns of finished-product yarns is even in thickness degree and small in broken end, and the quite-good yarn quality is obtained.

Description

technical field [0001] The invention belongs to the field of digital rotor spinning equipment, and relates to a controllable multi-channel rotor spinning fiber feeding method and a device thereof. Background technique [0002] The existing digital rotor spinning (front area / proportioning) drafting mechanism, the main components include asynchronous feeding rollers in the three-channel asynchronous feeding drafting area, triangular cotton collecting device, and collective feeding rollers, carding rollers , Rotor cup, Yin yarn roller, etc. Its operation process is: in the three-channel asynchronous feeding and drawing area, the fiber slivers are fed to three asynchronous feeding rollers one by one, held by the upper and lower rollers of the asynchronous feeding rollers, and sent to the collection through the triangular cotton collecting device. The feeding roller is stripped and loosened into single fibers by the high-speed rotating carding roller covered with card clothing, ...

AI Technical Summary

Problems solved by technology

[0003] The existing rotor spinning mixed color yarn has serious unevenness and strength, many thick and thin knots, and poor yarn quality, because the original mechanism has some defects, such as the following problems: 1. The asynchronous feeding of the original mechanism The rollers rely on the deformation of the top roller to provide the holding force, but the actual holding force is insufficient, resulting in the peak of the fiber drafting wave being too high; 2. In the three-channel asynchronous feeding drafting zone, according to the fiber ratio, the The draw ratio ranges from 1 to 20 times, and when there is no control device, the drafting is uneven, resulting in poor yarn evenness; 3. The original mechanism is fed asynchronously and draws synchronously, and the triangular cotton collecting device in the middle causes lateral The actual drafting distance of the fiber sliver is too large, resulting in uneven drafting and other phenomena; 4. The original mechanism relies on the collective feeding roller to feed the fiber bundle to the carding roller, and the collective feeding roller and its corresponding top roller or cotton feeding board Uneven gripping force, the high-speed rotating opening roller cannot strip the fibers smoothly, resulting in difficult feeding and frequent end breaks

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