A plastic tank manufacturing company contracted my engineering services to optimize the volumetric efficiency of their tank production process using rotational molding. For this project, I utilized Autodesk Inventor's Dynamic Simulation tool to create an accurate 3D model of the machine components, including molds and other relevant physical characteristics. Through detailed analysis and simulation, I optimized the mold alignment and rotational axes for the given volume constraints, achieving approximately 70% space utilization of the machine’s inner volume. This optimization resulted in a 40% increase in production efficiency and enabled the fabrication of larger products, significantly enhancing the company's manufacturing capabilities.
In this simulation, moment data from the rotational axes of the rotomolding process were analyzed, both with and without the two tank molds used in the study. The extracted data was supplied to the technical team for fine-tuning the electrical parameters and evaluating the system's capacity to achieve the required rotations on both axes efficiently.
Up to five small and medium molds were successfully placed in three different layout configurations to meet varying production needs. Each layout was carefully designed to avoid any collisions during the full rotational trajectory, maintaining an offset of at least 1 inch from the machine's inner walls.
The correct central axis was identified, enabling the use of large-volume molds in production, thereby maximizing the volumetric capacity of the rotomolding machine.