Feeding device for mask machine accessory production

The feeding device for mask machine accessory production comprises a conveying belt, supporting plates are fixedly installed on the two sides of the outer surface of the conveying belt, and protection structures are fixedly installed on the corresponding faces of the two supporting plates. The two protection structures each comprise a buffer plate, a rectangular groove, a connecting shaft A, a through opening A, a rectangular pushing head, a rectangular head, a connecting shaft B, a movable groove, a through opening B, a spring groove, a limiting plate and a spring, the rectangular grooves are formed in the outer surface of the buffer plate, and the rectangular grooves extend into the buffer plate; connecting shafts A are fixedly arranged on the two sides and the middle position of the face, corresponding to the supporting plate, of the buffering plate, through openings A are formed in the two sides and the middle position of the face, corresponding to the buffering plate, of the supporting plate, and the pos