Abstract: Aiming at the problems of complicated structure, poor parts interchangeability, and low extrusion efficiency of existing molding machines at home and abroad, a new type of crank slider molding machine was proposed,and the output power analysis and dynamic simulation of the forming machine were carried out. Firstly, based on its molding principle, the structure design was carried out. The kinematic characteristics of the overall mechanism were theoretically deduced and simulated. Then, AutoCAD software was used to draw the mechanism motion diagram; plane geometric analysis was used to derive the kinematic equation of the slider plunger and theoretically analyze the motion interference of the mechanism; the origin curve fitting method was used to obtain the resistance; MATLAB was used to plot the output the curve of power change with time; the model was established by Creo Parametric 6.0.0.0software. Finally, in ADAMS, the cubic interpolation spline function was used to simulate the kinematics and dynamics of its key component, the slider plunger, to study its movement. The results show that, according to the design size, there is no interference during the movement of the mechanism, and the movement is reasonable. It is concluded that the output power of the whole machine is 7.38 kW and the theoretical deduced power is basically the same as 7.54 kW, which verifies the accuracy of the theoretical analysis and provides a theoretical basis to select the actual motor power.

Key words: crank slider forming machine;output power analysis;dynamic simulation;motion interference;slider plunger