| 摘要 |
Described herein is a method for controlling a mould (1) for the production of plastic material articles; the mould (1), comprising a metal body (2) provided with an impression (2a) shaped so as to reproduce in negative the form of at least one part of the article to be made, a hot runner (3) for the distribution of liquid state plastic material that is positioned on the body (2) and is structured so as to cause the plastic material to flow away, on command and in a controlled manner, to the impression (2a), and a thermoregulation system (5) that is able to cool or heat the body (2); the method comprising the steps of calculating the power absorbed (PE1 (t<SUB>i</SUB>) ) by the hot runner (3), calculating the power absorbed (PE2 (t<SUB>i</SUB>) ) by the thermoregulation system (5), calculating the deviation (?EP) between the power absorbed (PE1 (t<SUB>i</SUB>) ) by the hot runner (3) and the power absorbed (PE2 (t<SUB>i</SUB>) ) by the thermoregulation system (5), and detecting a condition of malfunctioning of the mould (1) when the deviation (?EP) calculated is different from a pre-set reference deviation (?EC). |
