Design of Cam Curve for Evacuating and Stopper Inserting Machine Based on B-spline Curve

The commonly adopted cam curve design method is segmented expression according to the movement relation of cam follower,and it could not control the characteristics of cam as a whole,the authors adopts spline curve function to represent the movement relation of cam follower,and apply it in the cam design of evacuating and stopper inserting machine.Continuous design of cam curve for evacuating and stopper inserting machine is achieved,and it is a good reference for the cam design of other packaging machines.