Process simulation of blow molding for infusion bottle and mold design

LI Jun, DIAO Jiesheng, LIU Youyu, ZHU Xiebin

(School of Mechanical and Automotive Engineering, Anhui polytechnic University, Wuhu 241000, China)

Abstract: Aiming at the changing laws of thickness in blow molding process for infusion bottle. The process of blow modeling for infusion bottle was researched by computer simulation. The twodimension geometry model was established. It was imported ANSYSWORKBENCH software. The simulation task was created. The blow modeling process for infusion bottle was implemented with the reset grid technology. The changing laws of thickness in blow molding process for infusion bottle was obtained and got an analysis on blow molding process for infusion bottle. Combined to the blowing condition, the design project of blowing mould of infusion bottle was proposed. The results indicate that the thickness changing of parison and the effect of inflation pressure on wall thickness are obtained in the process of blow modeling. The thickness of parison varies from 0.796 mm to 2.904 mm. The inflation pressure varies from 0.798 Mp to 0.801 Mp. The maximum ratio of thickness is 3.648:1 and the inflation pressure is 0.799 Mp after simulation of blow modeling. The results make guidance to thickness controlling in the process of product manufacturing. The mold design is engaged by UniGraphics software. The design efficiency and the design accuracy are improved.

Key words: ansys workbench; blow molding; thickness controll; mold design; ansys workbench