The numerical controlled plastic film cutting machine in our design is used for flower
bags making. It is composed of four parts; cutting mechanism, delivering mechanism, tool rest and
machine bed. The tool rest is a critical structure to cutting and adhering operations. The tool rest is a
long -thin rod with big span, usually it’s failure is because of bending deformation caused by less
stiffness. In this study, we finished FEM 3D modeling of tool rest structure to increase its structure
stiffness. We analyzed bending deformation characteristics of the tool rest, performed 3D FEM
analysis and choose a relatively reliable structure after comparing maximum deformation in three
different candidate structures. As a result, support structure of the tools rest was optimized,
providing us a numerical data for structure reformation.
3D FEM analysis of a vertical shaft constructed in a slope
