Special-shaped yarn spinning device and method

Abstract

The invention provides a special-shaped yarn spinning device and method, and belongs to the technical field of spinning. The special-shaped yarn spinning device includes three creels, a guide part, aroller component and a yarn forming part which are arranged sequentially, each creel is provided with one roving, the guide part has a large first end and a small second end and is provided with threeguide holes running through the first end and the second end, one guide hole allows a string of roving to pass through, the roller component is arranged between the guide part and the yarn forming part and allows the roving to pass through, and the yarn forming part is used for yarn formation. According to the special-shaped yarn spinning method, the three strings of roving are installed on the three creels respectively, after backing-off, the three strings of roving pass through the three guide holes of the guide part and then the roller component to enter the yarn forming part to form one spun yarn, and the spun yarn winds around the yarn forming part. Through the special-shaped yarn spinning device and method, an AB yarn with the blending ratio greater than 75:25 can be produced, and the yarn quality is good.

Description

technical field [0001] The invention relates to the technical field of spinning, in particular to a special-shaped spinning device and a special-shaped spinning method. Background technique [0002] AB yarn is a composite yarn made by siro spinning. In siro spinning, two filaments with a certain distance are fed into the drafting area of ​​the spun yarn, and are twisted into yarn after drafting respectively. To put it simply, two rovings are spun into one spun yarn. This kind of yarn has the nature of strands, the fibers are arranged neatly, the yarn structure is tight, the hairiness is less, and the pilling resistance is good. Compared with ply fabric, siro fabric has a softer and smoother feel. AB yarn is two roving yarns with different colors or different raw materials. Yarns with different raw materials of AB have different effects in the subsequent dyeing, thus showing a special style. [0003] In the prior art, the weight of the two rovings of siro spinning is gener...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the weight of the two rovings of siro spinning is generally the same, and the weight of the two yarns with different components of the AB yarn is generally similar, that is, the blending ratio of A and B is similar, and it cannot be produced if it exceeds 75:25

Reasons: 1) Both the roving frame and the spinning frame have a certain drafting range. If the range is exceeded, the machine will not control the fiber well, and the yarn quality will be poor. If the blending ratio of the spun yarn exceeds 75:25, the required roving is too thick and too thin. Coarse; the roving frame cannot produce roving normally according to the required quantity; the roving quantity produced by the roving frame is generally 3.8g / 10m----10g / 10m

2) Two rovings that are too thick and too thin will cause poor fiber control by the top rollers and aprons on the spinning frame, poor drafting, poor evenness, broken ends, and normal production.

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