Multi-coating core-spun yarn and preparing machine thereof

Abstract

The invention belongs to the technical field of core-spun yarns and particularly relates to a multi-coating core-spun yarn and a preparing machine thereof. The preparing machine comprises a rack, a rotating disc is rotationally connected to the rack and connected with a driving mechanism, a central yarn tube is fixedly arranged on the rotating disc in a penetrating mode, at least one spindle located on the periphery of the central yarn tube is arranged on the rotating disc, and the spindles are used for carrying bobbins. The rotating disc is further fixedly provided with a plurality of yarn passing needle tubes for covering yarns released from the bobbins to penetrate through from bottom to top in a penetrating mode, the yarn passing needle tubes correspond to the spindles one by one and are located between the spindles and the central yarn tube, and the heights of the yarn passing needle tubes are gradually increased or decreased clockwise or anticlockwise in the circumferential direction so that the covering points of the covering yarns and a core yarn can be sequentially arranged side by side in the axial direction of the core yarn. The multi-coating core-spun yarn and the preparing machine thereof have the advantages that the yarn passing needle tubes are arranged in the circumferential direction, the heights of the yarn passing needle tubes are sequentially increased or decreased, a strip shape is formed after all the covering yarns are arranged side by side together, it is ensured that no gap appears between the covering yarns, the production efficiency can be easily improved, and energy consumption can be reduced.

Description

technical field [0001] The invention belongs to the technical field of core-spun yarns, in particular to a multi-coated core-spun yarn and a preparation machine thereof. Background technique [0002] Core-spun yarn, also known as composite yarn or covered yarn, is a new type of yarn composed of two or more fibers. The original core-spun yarn is short fiber and short-fiber core-spun yarn developed with cotton fiber as the skin and polyester spun yarn as the core. Core-spun yarn is generally a yarn made of synthetic fiber filaments with good strength and elasticity as the core yarn, and short fibers such as cotton, wool, and viscose fibers are twisted and spun together. The core-spun yarn combines the excellent properties of the filament core yarn and the outer staple fiber. The more common core-spun yarn is polyester-cotton core-spun yarn, which uses polyester filament as the core yarn and is covered with cotton fibers. There is also spandex core-spun yarn, which is a yarn...

AI Technical Summary

Problems solved by technology

[0004] Although the above solution solves the deficiencies of the prior art to a certain extent, the covering two-for-one twister wraps the core filament with a single yarn, and the wrapping is not balanced enough, and it is prone to leakage or overlapping wrapping, and the production efficiency is low. , high energy consumption and high cost

In addition, using a single yarn to wrap the core wire is easy to break during the weaving process, the overall design is not reasonable enough, and the practicability is poor

On the other hand, the covering two-for-one twisting machine cannot achieve multi-color mixing by wrapping the core yarn with a single yarn, and the processed product is only a single color, and it is impossible to make the product functional.

The yarn bobbin remains stable during the winding process, and its tension adjustment device cannot adapt to the rotation of the bobbin itself, and it is easy to be separated from the yarn. The overall design is not reasonable enough

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