Abstract:

In order to analyze the vibration and noise caused by the elliptical motion mechanism of the automatic printing machine, three dimensional modeling of the platen and the elliptical track of the R680 series automatic printing machineare was established, and the simulation of dlliptical motion mechanism was realized based on the Creo software. General formula for solving the maximum vibration position was derived based on the above model. The compactness between the track as well as the related problems of reducing noise in the course of the movement were explored. The results indicate that in the process of the platen entering the circular track from straight track, the gap between the outer front wheel of the platen and the track is presented in the first fast increase, then slowly becomes smaller and finally tends to zero, while the gap between the outer rear wheel and the track shows the delayed change from slow to fast. The gaps in the process of the platen entering the straight track from circular track and gaps in the process of the platen entering the circular track is symmetrical. When the outer front wheel of the platen rotating 7.5 ° or 17.5 °during the platen entering the circular track gaps between outer front or rear wheel of the platen, the track reaches the maximum value  are 0.33mm.

Key words: automatic printing machine, elliptical motion mechanism, elliptical crbit, simulation analysis, movement gap