Mold - opening Direction and Parting Line
When starting to design each injection - molded product, the mold - opening direction and parting line should first be determined to ensure that the core - pulling slider mechanism is minimized as much as possible and the influence of the parting line on the appearance is eliminated.
Once the mold - opening direction is determined, the structures such as reinforcing ribs, snaps, and protrusions of the product should be designed to be as consistent as possible with the mold - opening direction to avoid core - pulling, reduce parting lines, and prolong the service life of the mold.
After the mold - opening direction is determined, an appropriate parting line can be selected to avoid undercuts in the mold - opening direction, so as to improve the appearance and performance.
Additional Explanation
Moreover, during the design process, considering the mold - opening direction and parting line comprehensively can also optimize the flow of the molten plastic during injection molding. A well - designed parting line can ensure the uniformity of the plastic flow, reducing the possibility of defects such as air traps and weld lines, which further enhances the quality of the final product. This integrated design approach is crucial for achieving high - quality injection - molded products with both good mechanical properties and aesthetic appearance.