Front-end paper feeding mechanism of quality inspection machine

The invention discloses a front-end paper feeding mechanism of a quality inspection machine. The front-end paper feeding mechanism comprises a base, wherein mounting plates are symmetrically mounted at the top of the base; two conveying rollers are mounted on the inner side surfaces of the mounting plates in a fixed-axis manner; a cover-free air box is mounted on the inner side surfaces of the mounting plates and between the conveying rollers; and a bearing plate is mounted in the cover-free air box. According to the front-end paper feeding mechanism of the quality inspection machine, a large-area exhaust mechanism is formed by matrix arrangement, and paper feeding is carried out by matching with an air suction belt; compared with the technical means of feeding paper by adopting double belt clamps in the prior art, a lower belt is improved into the air suction belt, an upper pressing belt is omitted, the adjustment is simpler after improvement, and the paper feeding is more stable and safer; and compared with