Sanitizer Cap – Injection Mould Die Design

I designed a complete injection‑mould die for a sanitizer cap, starting from the customer’s sample and converting it into a fully engineered, production‑ready mould assembly. The project includes detailed modelling of the core, cavity, inserts, guide pillars, and ejector system, ensuring accurate replication of the cap’s functional features such as snap‑fit, sealing surfaces, and locking geometry. The cavity and core blocks were developed with correct draft angles, uniform wall thickness, and smooth transitions to achieve defect‑free moulding. The gating layout is positioned to ensure balanced filling and proper packing, while venting locations are optimized to prevent air traps during injection. A dedicated ejection mechanism was engineered using ejector pins and a central sleeve ejector to release the cap without deformation. The ejector layout avoids marks on cosmetic surfaces and maintains structural integrity around the snap‑fit features. Cooling channels are strategically placed around the mould to ensure uniform temperature distribution and reduced cycle time. The final design is presented in solid and transparent exploded views, clearly showing internal components, alignment features, and the complete ejection system. This project demonstrates my capability in reverse‑engineering customer samples, creating precise 3D CAD models, and delivering high‑quality, production‑ready injection mould designs.