Fabric correction method and flexible weft straightener

Abstract

The invention discloses a fabric correction method and a flexible weft straightener. The flexible weft straightener comprises a fabric correction device, a fabric detection device and an electric controller; the fabric detection device is connected with the electric controller; the fabric correction device is controlled by the electric controller; the fabric correction device comprises at least three correction mechanisms which are arranged in the fabric width direction and provided with independently-driven rotating pieces; the rotation of the rotating pieces is controlled by the electric controller; each correction mechanism comprises a shaft, a sleeve mounted on the shaft and a driving mechanism; the shafts are mounted on a rack of the flexible weft straightener or an independently-arranged bearing frame; the sleeves serve as the rotating pieces and are driven by the driving mechanisms to rotate; and the driving mechanisms are controlled by the electric controller. According to the invention, local areas, small fragments and irregular weft skewing, weft bending and pattern deformation can be corrected, the correction amount can be accurately and finely adjusted, real-time correction can be realized, the response speed is high, the correction precision is high, excessive drafting or cloth piling is avoided, the structure is simple, the use cost is low, and the application range is wide.

Description

technical field [0001] The invention relates to a correction method and equipment, in particular to a correction method for fabric weft skew, weft bend and pattern deformation and a weft trimming machine, belonging to the technical field of textile equipment and technology. Background technique [0002] In the process of weaving and finishing, due to the influence of equipment precision errors, various mechanical movements and human operations, weft skew, weft bend, flower shape skew and flower shape bending often occur, which affects subsequent processing and thus affects the quality of finished fabrics. Quality, reducing the use value of textiles, therefore, it is necessary to use the weft straightening machine to correct the distortion of fabric texture and flower shape. [0003] Existing weft straightening machines include several straightening rollers, a fabric detection device for detecting fabric texture and flower shape, and an electric controller. The straightening ...

AI Technical Summary

Problems solved by technology

When the transmission shaft drives the mandrel of the bending roller to rotate, due to the radial runout of the transmission shaft and other factors, the sprocket is easily fatigued and damaged, which often causes poor chain transmission, increases power consumption, accelerates the wear of the chain and sprocket, and the chain is easy to stretch breakage, or even accidents, which is not conducive to safe production, affects the normal supporting operation of the dyeing and finishing process, high maintenance costs, and increases the cost of use

[0006] Moreover, the existing weft straightening machine uses a plurality of straight rollers and bending rollers to correct the deformation of the fabric by adjusting the fabric stroke. The bending and pattern deformation can be corrected, and the correction amount cannot be fine-tuned accurately, resulting in low correction accuracy, and it is impossible to achieve fine and precise correction of the entire fabric; For fabric correction, the mechanical structure is more complex, and the adjustment stroke is longer. It is a system with a large delay, and the response is slow, which is not conducive to real-time correction control. It cannot be adjusted with high precision, and the product quality is difficult to improve. Because the weft machine exerts tension on the fabric in its entire width, too large or too small will cause the fabric in the weft trimming machine to be over-drawn or piled up, so it is prone to excessive drafting and curling of the fabric; Knitted fabrics with high extensibility and easily deformed by external force, fabrics with loose structures such as chiffon, etc., cannot be effectively corrected, and the application range is small

For these problems, there is currently no solution

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