Fabric correction method and weft straightener

Abstract

The invention discloses a fabric correction method and a weft straightener. The weft straightener comprises a fabric detection mechanism, fabric correction mechanisms and an electric controller; each fabric correction mechanism comprises a correction belt and a driving mechanism for driving the correction belt to perform annular operation; at least three fabric correction mechanisms are arranged in the fabric width direction; the driving mechanisms are controlled by the electric controller; each driving mechanism comprises a motor, a driving wheel and a driven wheel; the driving wheels are connected with the motors; the correction belts are annular and are installed between the driving wheels and the driven wheels; the driving wheels and the driven wheels are installed on a rack of the weft straightener or an independently-arranged bearing frame; and the motors are controlled by the electric controller. According to the invention, local areas, small fragments and irregular weft skewing, weft bending or 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, and the use cost is low.

Description

technical field [0001] The invention relates to a straightening method and equipment, in particular to a fabric straightening method 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 and reduce the use value of textiles, therefore, it is necessary to use the weft trimmer to correct the texture and flower shape deformation of the fabric. [0003] The existing weft straightening machine includes several straightening rollers, a fabric detection mechanism for detecting fabric texture and flower shape, and an electric controller. The straightening rollers include straight rollers for correct...

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 or 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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