Core spinning device and new-structure core spinning method for full wrapping of macro core

Abstract

The invention provides a core spinning device and a new-structure core spinning method for full wrapping of a macro core. According to the core spinning device, an auxiliary core wrapping device is additionally arranged between a front roller jaw and a yarn guide hook of a common ring spinning frame; and the auxiliary core wrapping device comprises a first yarn channel used for conveying an outer wrapping material, a second yarn channel used for conveying a core layer material and a wrapping point used for wrapping and converging. In a spinning process, short fiber strands and filaments form a y-shaped twisting structure with the filaments in a straightened state, the filaments are kept in the straightened state at the wrapping point, and the short fiber strands wrap outer layers of the filaments at the wrapping point by means of twisting rotation of the filaments and partial twist of the short fiber strands, so that core spun yarn with a good wrapping effect is formed, and the problem of core exposure of the ring-spun core spun yarn is solved. According to the invention, through coating of nanofibers, the hairiness of resultant yarn is completely eliminated, and the performance of the resultant yarn is comprehensively improved. The operation is convenient, the transformation cost is low, and the performance of the ring-spun core spun yarn is obviously improved.

Description

technical field [0001] The invention relates to the field of textile processing technology, in particular to a core-spun spinning device and a new-structured core-spun spinning method with macro core fully covered. Background technique [0002] Core-spun yarn is loved by people because of its unique core-sheath structure, and the spinning and research on core-spun yarn has never stopped. Core-spun yarn has been developed for a long time and there are many types at this stage. In short, the fiber strips of one component are twisted and twisted by the fiber strips of the other component to form a core-spun yarn, but in general The lower core-spun yarn refers to the yarn made of chemical fiber filaments with good strength and elasticity as the core yarn, and short fiber strands such as outsourcing cotton, hemp, wool, viscose, etc., through twisting. At this stage, most of the research on core-spun yarns is to study the materials for spinning core-spun yarns to achieve multifun...

AI Technical Summary

Problems solved by technology

At this stage, most of the research on core-spun yarns is to study the materials for spinning core-spun yarns to achieve multi-functionality, and there are few studies on the methods of core-spun yarns.

However, some existing technologies for spinning core-spun yarns have an unavoidable problem: whether the core yarn can be completely covered without core exposure

However, the rotor core-spun yarn has the problems of uneven core-spun yarn and core-spun yarn

[0007] In order to solve the core-spun core problem of the existing core-spun yarn, the Chinese patent CN213266838U published on May 25, 2021 "positions the core-spun core yarn of the compact spinning frame "Device", a filament positioning device is added to the compact spinning frame to keep the filament at the center of the twisting triangle when spinning the core-spun yarn so as to improve the covering of the core-spun yarn, but this method only improves It eliminates the phenomenon of filament deviation, but does not improve the exposed core problem that the outsourcing fiber of the ring spinning core yarn itself cannot completely cover the core yarn

[0008] The invention patent CN109518331A "a core-spun yarn production device and its production method" published on March 26, 2019, adopts a channel stopper , let the outsourcing roving strands and filaments pass through the lead-in channel in the channel stopper so that they can be stably fed into the nip of the front roller and keep the filaments in the middle of the staple strands for twisting to form a core-spun yarn, This method uses two sets of rovings for spinning, and the resulting yarn covering effect is good, but it causes some difficulties in the arrangement of the rovings

The covering effect of the core-spun yarn formed by this method is good, and the problem of exposed core of the filament is improved, but the structure is unstable, and the short fiber strands are easily disturbed by external factors and fluctuate, resulting in broken ends

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