Machine-vision-based intelligent cutter lifting system of shearing machine and realization method thereof

Abstract

The invention discloses a machine-vision- based intelligent cutter lifting system of a shearing machine and a realization method thereof. The machine-vision-based intelligent cutter lifting system ofa shearing machine comprises a touch screen, a PLC controller and a machine vision cloth seam detection system, wherein the machine vision cloth seam detection system is arranged on a rack of the shearing machine and rightly faces to right ahead and an oblique forward direction of a fabric processed by the shearing machine. The machine vision cloth seam detection system comprises a vision cross beam, an image forming system and a control system. The image forming system comprises a light source device, a camera and a lens. The light source is arranged on the crossbeam. The crossbeam is arranged on the rack of the shearing machine, above a front guide roller and directly facing the front end of a detected fabric. The machine-vision-based intelligent cutter lifting system of the shearing machine is a non-contact detection system, has no impact on a fabric processing style, can guarantee the machine vision system can reliably detect the cloth seam and the hole through the robot vision system, and can make a hair brushing cutter or a shearing cutter lift automatically through the control system to let cloth seam to operate. The machine-vision-based intelligent cutter lifting system ofshearing machine is simple in structure, high in control accuracy, low in fault rate, and can save labor, can increase efficiency and can improve product quality.

Description

technical field [0001] The invention relates to the technical field of electrical control of a shearing machine, in particular to an intelligent knife-lifting system of a shearing machine based on machine vision and an implementation method thereof. Background technique [0002] Shearing machine is a kind of textile finishing equipment and one of the main equipment for plush products. After weaving and fluffing of velvet fabrics, the lengths of plush fibers on the surface are different, and the plush fibers usually need to be cut evenly; or the surface loops of knitted terry fabrics need to be cut and trimmed to increase the added value of the fabric. This is what the shearing machine needs. achieve the purpose. [0003] In order to ensure the continuity of shearing production, the cloth has been sewn together before the shearing process. During the shearing production process, the shearing knife needs to be lifted when the cloth seam passes through the shearing knife, so t...

AI Technical Summary

Problems solved by technology

The current equipment generally uses a mechanical pressure roller to cooperate with a mechanical travel switch or an encoder to detect cloth seams through thickness changes. There are many problems with this mechanical detection mechanism: 1. Strict requirements on the seam head, the thickness of the seam head It must be more than 2 times the thickness of the processed fabric; 2. The production of fabrics with different thicknesses requires frequent adjustments to the action stroke of the travel switch, which is poor in operability; 3. The mechanical pressure roller needs to be pressed on the fabric surface to detect the fabric seam, which affects the fabric processing style. Affected, some fabrics cannot be used; 4. During the fabric processing process, it will be falsely detected after curling or creping; 5. The seam must be straight and without weft skew; 6. Cannot detect holes

Due to these reasons, the reliability of the mechanical cloth seam detection device is poor, and the cloth seam detection rate is low

[0004] Therefore, the cloth seam detection and knife lifting action of shearing machines currently on the market are basically done manually. Workers are very fatigued, and it is easy to cause cloth seams without lifting the knife, resulting in damage to the fabric, and damage to the shearing knife at the same time, resulting in low production efficiency. , and due to the different proficiency of the workers, the width of the fabric missed by lifting the knife is different, resulting in waste, and it is difficult to guarantee the quality of the product

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