Double-wrapping parallel yarn spinning device and method

Abstract

The invention provides a double-wrapping parallel yarn spinning device and method. The double-wrapping parallel yarn spinning device comprises an upper hollow spindle and a lower hollow spindle, wherein the upper hollow spindle and the lower hollow spindle are communicated with each other through a controllable bearing; the upper hollow spindle and the lower hollow spindle are driven to rotate through an independent motor by the controllable bearing and a belt; the upper hollow spindle and the lower hollow spindle are additionally provided with an upper bobbin and a lower bobbin through trays respectively; and upper and lower outer wrapping yarns are wound on the upper bobbin and the lower bobbin. In a yarn spinning process, by switching the opening and closing states of the controllable bearing, independent wrapping or simultaneous wrapping on core yarns through the upper and lower outer wrapping yarns is realized; and a rotary speed of the motor and a rotary direction can be switched, so that the adjustment of a wrapping direction and a wrapping thread pitch in a process of simultaneously wrapping the upper and lower outer wrapping yarns is realized. The double-wrapping parallel yarn spinning device and method can realize double wrapping of the core yarns; and meanwhile, directions of two times of wrapping and the wrapping density are adjustable, so that the appearance effect of the yarns is enriched and the additional values of the yarns are improved.

Description

technical field [0001] The invention relates to the field of spinning new technology, in particular to a double-wrapping parallel yarn spinning device and spinning method. Background technique [0002] Parallel spinning, also known as wrapping spinning, uses a hollow spindle for spinning, and the yarn produced by a parallel spinning machine is called parallel yarn, also known as P.L yarn. In parallel spinning, a non-twisted parallel fiber strip is used as the core yarn, and the outsourcing filament or spun staple yarn is wound on the bobbin after being wrapped into yarn. Since the fibers of the core yarn are not twisted, it is called Parallel spinning. When the yarn is stretched, the filament exerts radial pressure on the short fiber sliver, which causes friction between the short fibers and makes the parallel yarn have a certain strength. [0003] Parallel yarn can replace thread, and it is suitable for untwisted, weak twist and pile products with its unique yarn structur...

AI Technical Summary

Problems solved by technology

However, the current parallel spinning devices are all outsourced with single filament or spun yarn, which limits the variety of spinning and yarn quality.

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