Warp feeding device of lint air jet loom

Abstract

The invention discloses a warp feeding device of a lint air jet loom. The warp feeding device comprises a frame and a servo control system, wherein a ground warp feeding mechanism is arranged at the upper part of the frame, and a pile warp feeding mechanism is arranged at the lower part of the frame; the ground warp feeding mechanism is provided with a ground warp weaving shaft and a ground warp feeding tension roller in sequence in a ground warp conveying direction; the ground warp weaving shaft is driven by a ground warp servo motor; the ground warp feeding tension roller is connected with a ground warp tension sensor; the pile warp feeding mechanism is provided with a pile warp shaft disk, a pile warp feeding tension roller, a yarn guide roller, a velvet raising control roller and a velvet raising tension roller in sequence in a pile warp conveying direction; the pile warp shaft disk is driven by a pile warp servo motor; the pile warp feeding tension roller is connected with a pile warp tension sensor; the velvet raising tension roller is connected with a tension spring; and the servo control system comprises a servo controller. The warp feeding device is precise in tension control, can adjust the positions of ground warps and pile warps and the heights of velvets, prevents the generation of high-low velvet phenomenon, and improves the weaving quality.

Description

technical field [0001] The invention relates to an air-jet loom, in particular to a warp let-off device for a flannelette air-jet loom. Background technique [0002] At present, flannelette is woven by shuttle looms, but the speed of shuttle looms is slow, the noise is high, the weaving efficiency is low, the problem of wool board on the cloth surface is unavoidable, the working environment is poor, and the number of workers who block the car is becoming more and more difficulty. The velvet cloth is composed of upper and lower double-layer cloth and the velvet warp in the middle. The requirement for the warp yarn is also changed from the original one warp yarn to two warp yarns, and the let-off speed of the velvet warp determines the height of the pile. In the weaving process, The warp let-off speed of the cashmere warp needs to be kept constant, and the phenomenon of high and low cashmere cannot occur. In addition, the ground warp tension is uniform, the cashmere warp posi...

AI Technical Summary

Problems solved by technology

However, the existing shuttle looms adopt the mechanical friction let-off technology, that is, the pile warp beam and the ground warp beam are placed in the let-off device at the same time to complete the let-off movement, but because the warp let-off movement is mechanical friction In the weaving process, there will be disadvantages such as uneven warp let-off and inconvenient manual yarn feeding, and the tension control accuracy of the warp let-off method of the shuttle loom is poor, and the phenomenon of high and low piles often occurs due to unstable tension, and the weaving shaft starts to run. There will also be a large difference in height and height from the end of the operation

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