Yarn-saving yarn feeding device of single-needle-bed jacquard machine, warp knitting machine and application

Abstract

The invention belongs to the technical field of textile machinery, and particularly relates to a yanr-saving yarn feeding device of a single-needle-bed jacquard machine, a warp knitting machine and application. An original warp beam pan head yarn feeding mode of two half jacquard guide bars is changed into a mode that the two half jacquard guide bars are negatively fed in a creel yarn feeding modeso as to be used for jacquard weaving, and two ground combs still adopt the original warp beam pan head yarn feeding mode to actively feed yarns to form ground weave. Guide needles form a mesh area along with chaining weft insertion of the ground weave, or the guide needles serve as weft insertion between every two adjacent knitting needles, gaps between the knitting needles are covered with twoextension lines, and a thin area is formed in a leftover material area of a vamp or a garment fabric needing to be woven. Therefore, the stability of the whole cloth can be maintained, and the waste of raw material yarns in the leftover material area is greatly reduced; and compared with the mode that an original device is adopted for producing the same fabric, the yarns in the leftover material area are reduced by 69 percent, so that a way for saving production cost is provided for related fabric production enterprises.

Description

technical field [0001] The invention belongs to the technical field of textile machinery, and more particularly relates to a yarn feeding device, a warp knitting machine and an application of a yarn-saving single-needle bed jacquard machine. Background technique [0002] When the warp knitting machine is in normal operation, the warp yarn is unwound from the warp beam and sent to the loop forming system according to a certain amount of warp let-off, for knitting by the loop forming parts. This process is called warp let-off. The mechanism that completes this process is called the let-off mechanism. The let-off mechanism is divided into two categories: negative let-off and active let-off. All creel feeds are passive systems, the tension of each yarn is controlled by the gravity of the yarn tensioner. The mechanism in which the main shaft of the warp knitting machine drives the warp beam to rotate through the transmission device for let-off is called a positive let-off mecha...

AI Technical Summary

Problems solved by technology

Some adjustments to the warp let-off tension will cause the stability of the entire cloth to decrease due to improper operation. In short, there is an urgent need for technological breakthroughs on the basis of ensuring the stability of the lower machine width and saving yarn consumption.

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