PROCESS MONITORING AND OPTIMISATION IN INJECTION MOULDING WITH THE AID OF NEW MEASURING SENSORS

摘要

With the aid of a newly developed, high-sensitivity measuring sensor system, it is possible to record the cavity pressure profile from outside the mould cavity, using the machine deformation as a directly correlating parameter. The measurement principle involves a pre-tensioned piezo element being coupled to the machine via a deformation cross-member. The system as a whole can be readily adapted, which means it can be retrofitted to existing injection moulding machines. The results of a study are presented, which looked into potential applications for this new generation of measuring sensors for process monitoring in injection moulding.