High-speed stable laser coding system and method for pull ring of easy-to-open cover

The invention discloses a high-speed stable laser coding system and method for a pull ring easy to open. The high-speed stable laser coding system comprises a transmission mechanism, a multi-channel laser coding mechanism, a visual detection mechanism and a dust removal mechanism. The conveying mechanism comprises a conveying base, an upper conveying plate and a lower conveying plate, and a conveying channel arranged in the horizontal direction is formed between the upper conveying plate and the lower conveying plate. The upper conveying plate is provided with an upper pressing maintaining device which is in rolling contact with the upper surface of the pull ring material belt, and the conveying base is provided with a side edge maintaining device which is in rolling contact with the side edge of the pull ring material belt. The distance between the upper surface of the pull ring material belt and the upper wall in the conveying channel and the distance between the lower surface of the pull ring material belt