Production device and production method for composite functional yarns

Abstract

The invention provides a production device and a production method for composite functional yarns. A rear sizing roller, a middle sizing roller and a front sizing roller are adopted, small grooves areformed in the rear sizing roller and the middle sizing roller along the circumferential direction, and the front sizing roller is free of grooves; a three-bell-mouthed device comprising left, middleand right bell mouths is additionally mounted on the rear portion of a rear roller, and the middle bell mouth is aligned with the groove of the rear sizing roller; two short-fiber rough yarns are fedfrom the left bell mouth and the right bell mouth, and undergo the drafting action in a drafting system; a filament or a filament bundle is fed from the middle bell mouth and does not undergo the drafting action; when the short-fiber rough yarns and the filament or the filament bundle are pressed by a front bottom roller and the front sizing roller after being gathered, double short-fiber strandsoutputted by the drafting system cover the filament or the filament bundle under the action of twisting to obtain a covering yarn; when the short-fiber rough yarns and the filament or the filament bundle are pressed by the front bottom roller and the front sizing roller at certain intervals, the outputted double short-fiber strands cover the filament or the filament bundle under the action of twisting after respective weak twisting to obtain a fasciated yarn.

Description

technical field [0001] The invention relates to the new technical field of ring spinning, in particular to a production device and a production method of composite functional yarn. Background technique [0002] In recent years, new structural yarns with various functions combined with filaments and short fibers have received more and more attention, and have been continuously improved and improved in the process of development, diversifying products to raw materials , structural composite, and functional diversification. These achievements have benefited from the adoption of new raw materials, new processes, new equipment and new control methods, bringing vitality to the development of new structural yarn varieties. The core-spun yarn is generally made of synthetic fiber filaments with good strength and elasticity as the core yarn, and is spun together with short fibers such as cotton, wool, and viscose fibers. The core-spun yarn combines the excellent properties of the fil...

AI Technical Summary

Problems solved by technology

However, the currently commonly used filament and short fiber composite yarns mainly include core-spun yarns and wrapping yarns. During the spinning process, the filaments are generally fed from the nip of the front roller. This feeding structure often leads to filament feeding. The tension during feeding is not easy to control, and the wrapping effect of the filament is not easy to control due to the asynchronous feeding of the filament and the outsourced short fiber

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