Machine vision based fabric pattern adjustment method and device thereof

Abstract

The invention relates to a machine vision based fabric pattern adjustment device. A pair of adjustment bowed rolls and more than two adjustment diagonal rolls are arranged between a front cloth guide roller and a rear cloth guide roller on a rack; one end of each adjustment bowed roll is installed on the rack and the other end is connected with a bowed roll motor of a bowed adjustment mechanism; the adjustment diagonal rolls are installed on a bracket on a diagonal roll adjustment mechanism; one end of the bracket is articulated to the rack and the other end is connected with the diagonal roll motor by screw nuts and screw rods; an industrial camera and a light source bracket are installed on the front cloth guide roller or / and the rear cloth guide roller; a light base is installed on the light source bracket; a linear light source is installed on the light base; the output end of an encoder installed on a transmission rod which is synchronous with fabric is connected with the input end of the industrial camera; the input end of a central processing unit is connected with the output end of the industrial camera; and the output end of the central processing unit is connected with the bowed roll motor and a diagonal roll motor. The invention can automatically adjust the inclining and bending of a pattern and achieves the effect of automatic pattern adjustment.

Description

technical field [0001] The invention relates to a machine vision-based automatic fabric trimming method and a device thereof, belonging to the technical field of printing and dyeing equipment. Background technique [0002] For fabrics such as printed cloth and plaid that have been printed with patterns in the process of washing and drying, stenter setting or pre-shrinking and other finishing processes, as well as batik cloth with background patterns in the printing process, due to the continuous traction of the fabric state, and affected by various mechanical movements and production operations, as well as problems such as uneven tension of each cloth guide roller, the fabric shows distortions such as flower-shape tilting, flower-shape bending, and flower-shape showing S-bend. The distorted pattern of the fabric cannot meet the requirements of customers; the batik fabric with distorted pattern will affect the printing quality after entering the printing process. At present,...

AI Technical Summary

Problems solved by technology

The distorted flower shape of the fabric cannot meet the customer's requirements; the batik fabric with distorted flower shape will affect the printing quality after entering the printing process

At present, after ordinary calico has been stentered and pre-shrunk, the pattern of the fabric cannot be kept in a standard state, and there is no corresponding equipment to adjust the pattern of the distorted fabric.

However, after batik printed cloth is wax-removed, washed, and shaped, the distortion of the flower shape can only be adjusted by manually adjusting the weft straightener. These problems directly lead to low yield and low production efficiency of textiles.

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