Reduce the displacement and the roundness of the round plastic product by the baffle cooling channel in the injection molding system

Reduce the displacement and the roundness of the round plastic product by the baffle cooling channel in the injection molding system

Through numerical analysis, the impact of baffle cooling channels on the total displacement and circularity of plastic cup products has been investigated in this study. Case 1, with a single cooling channel on the cavity side, Case 2, with cooling channels on the cavity and core sides, and Case 3, with a baffle cooling channel on the core side, are the three cooling channel configurations that are considered. Our results highlight the need for core-side cooling channels to provide uniform heat transfer in deeply molded plastic parts. Consequently, the implementation of a baffle cooling channel in Case 3 reduces total displacement and circularity, two critical elements influencing product quality. In particular, the product's circularity significantly reduces from 0.29 mm in Case 1 to 0.01 mm in Case 3, and the overall warpage displacement drops from 0.42 mm in Case 1 to 0.09 mm in Case 3.