The invention discloses a conveying mechanism which comprises a circulating conveying rack, a separation disc driving device arranged at one end of the circulating conveying rack, and a chain circulating conveying belt which is arranged on the circulating conveying rack and is driven by the separation disc driving device, wherein the separation disc driving device comprises a driving component arranged corresponding to the circulating conveying rack, and separation discs which are connected to the driving component; transmission grooves which are matched with the chain circulating conveying belt for utilization are formed in the separation discs; the chain circulating conveying belt comprises a plurality of transmission chain bodies which are connected with each other; traveling wheels are arranged on the transmission chain bodies; and auxiliary travelling plates for allowing the travelling wheels to travel are arranged among the circulating conveying rack and the separation discs. According to the conveying mechanism provided by the invention, a separation disc driving device achieving smooth transmission is arranged to drive the chain circulating conveying belt to feed product parts, the product feeding and transmission is smooth, and the conveying efficiency of products is improved.