Simulation and Optimized Analysis of Channel for Injection Molding of Bottle Cap Based on Moldflow

A simulation optimization of a two-cavity injection molding for the bottle cap was studied. It included the preprocessor of the model, scheme one which used a series recommended parameters from Moldflow software. Though the result could meet surface quality requirements, the mold structure was too complicated especially the channel. The deformation of different factors were analyzed and uneven cooling had little effect on the deformation. And some relative heat condition equation were used to calculate the channel number. Therefore the optimized scheme two was put forward. According to the cooling circuit and deformation factors, the channel number was greatly reduced. After the simulation, scheme two could also meet surface quality requirements. At the same time, the mold structure can get simplified.