The flexible impact of the conventional cam contour of the labeling machinery is analyzed

a new cam mechanism design method is proposed.Firstly

the movement condition and trajectory equation of the traditional cam mechanism are introduced

as well as the existence problems is pointed out.Secondly

under the given restrains

in order to realize multi-objective requirements of the follower segment angular acceleration of the acceleration curve is increasingly small as much as possible

the linear weighting method of multi-objective planning is used in the optimized analysis

the follower motion equation is redesigned by using the genetic algorithm.Once more

through solving the follower trajectory

then the cam contour is obtained by processing the trajectory.Finally

through after optimized cam profile

the cam mechanism is processed and the test running is carried out.The experimental results show that the cam mechanism of new design reduced the follower flexible impact

and it has a certain practical significance.