Structural Optimization of the frame of tobacco provision machine

• 1、National Engineering Research Centre for High Efficiency Grinding, Hunan University, Changsha 410082

Abstract：The frame of tobacco provision machine consists of a guides package and a braced frame, whose rigidities have an critical affect on the push-pull flexibility of tobacco transport belt. To increase the rigidity of the frame and enable the tobacco transport belt to operate normally, this paper presents an optimization of the frame of tobacco provision machine by finite element method. While a finite element model of the guides package and its analytical model according to the energy method are built respectively, it is shown from the comparative results in the two models that the finite element model is convincible. Moreover, the finite element model of the frame of tobacco provision machine is built, and the large displacement zone is optimized by adding support plates and changing the thickness of support plates. The optimization results are shown that the maximum deformation of the frame decreases by 44.9% in the X direction and 89.3%in the Y direction respectively. Eventually, the guide deadlocking problem of the original tobacco provision machine is resolved.

Keywords： Structure optimization；Frame of tobacco provision machine Guides package Analytical model Finite element model