Abstract: In order to meet demand for automatic blanking transportation of disc parts such as fine forging tooth-billet parts，an automatic blanking device was provided for conveying mechanism，not only could effectively solve problems of“jam，pile up，bump or tilt，and roll material on the side”in process of parts transportation，but also it could realize automatic connection and transportation between various processes.In addition，device has new structure，easy to operate，high automaticity，promoted productivity and worth practically generalizing.