Bar code grade verification device

The utility model relates to the technical field of bar code grade verification, and particularly discloses a bar code grade verification device. The bar code grade verification device comprises a carrying table, a conveying mechanism, a camera assembly and a camera driving module. The conveying mechanism comprises a fixed track plate, a movable track plate, an adjusting mechanism and two conveying lines, the fixed track plate and the carrying platform are oppositely and fixedly arranged; the movable track plate is in sliding connection with the carrying table and can move towards or away from the fixed track plate; the adjusting mechanism adjusts the distance between the movable track plate and the fixed track plate; wherein one conveying line is installed on the fixed track plate, the other conveying line is installed on the movable track plate, and the conveying planes of the two conveying lines are located between the fixed track plate and the movable track plate and are coplanar. The bar code grade verif