An integrated control strategy for injection moulding
The IMM's performance primarily depends on its hydraulic-mechanic movements. In addition, it involves the extremely careful analysis and optimisation of several process and material parameters. Hence, for the prediction of the total performance of the IMM, simulation algorithms for the hydraulics and the process are required. Although such simulators are widely available, the precise prediction could not be achieved by using uncoupled tools. Injection moulding without rejects is the ideal moulders try to attain. Thereby, the project developed a unique software tool with combined algorithms that simulate the actuation system and the process. The combined software tool for the drive system and the injection moulding process integrates all the necessary information for more realistic simulation results. Tested for a new electric-hydrostatic system, the deviation between the simulation and experimental results was almost 10%. Moreover, the software package consists of a complete methodology for controlling the performance and energy consumption of the actuation system. The associated benefits are tremendous. The technology increases the safety and reliability of the production system of quality plastic parts. Additionally, it can simultaneously ensure the rational management of the energy used during the process. It could significantly contribute to increase industrial competitiveness in the worldwide market of plastics.
