Yarn storage method of warp knitting machine

Abstract

The invention discloses a yarn storage method of a warp knitting machine, belongs to the field of composite material production equipment, and aims to provide a yarn storage device of a warp knittingmachine with a weft laying structure and capable of keeping the yarn tension stable when yarns are used periodically. According to the key points of the technical scheme, the yarn storage method of the warp knitting machine includes an unwinding part, a yarn storage part and a weft laying part, wherein the unwinding part unwinds the yarns at a constant speed; the weft laying part moves periodically at different speeds; the yarn storage part compensates the different speeds of the periodic motion of the weft laying part, and the amount of the yarns used in different stages of the periodic motion is balanced; and in a weft laying cycle, the amount of the yarns unwound by the unwinding part is equal to the amount of the yarns used in the weft laying part. The yarn storage method is suitable for the production of composite material fabrics.

Description

technical field [0001] The invention relates to a yarn storage method, in particular to a yarn storage method for a warp knitting machine. Background technique [0002] The multi-axial warp knitting machine usually lays weft through the weft laying station during the fabric production process, but the amount of yarn used by the weft laying car changes periodically during the entire production process of weaving and return. The unwinding speed of the roll part is constant. When the weft yarn is discharged during the weft laying process, the weft laying part will be accelerated in a short time. In order to ensure the stability of the yarn tension and prevent the yarn from breaking during the weft laying Before the acceleration of the weft part, the yarn needs to be stored to a certain extent. Therefore, it is urgent to design a yarn storage method for the warp knitting machine to ensure that the weft laying structure can keep the yarn tension stable when the yarn is used perio...

AI Technical Summary

Problems solved by technology

[0002] The multi-axial warp knitting machine usually lays weft through the weft laying station during the fabric production process, but the amount of yarn used by the weft laying car changes periodically during the entire production process of weaving and return. The unwinding speed of the roll part is constant. When the weft yarn is discharged during the weft laying process, the weft laying part will be accelerated in a short time. In order to ensure the stability of the yarn tension and prevent the yarn from breaking during the weft laying Before the acceleration of the weft part, the yarn needs to be stored to a certain extent. Therefore, it is urgent to design a yarn storage method for the warp knitting machine to ensure that the weft laying structure can keep the yarn tension stable when the yarn is used periodically.

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