Patent ID: 7311507

Claim:
Equipment for injection-moulding for plastic materials, including at least one flow unit for the plastic materials in a fluid state with at least one heating device including at least one electrical resistor and a control thermocouple associated thereto and supplied by a power unit, a thermoregulation unit for modulating a supply of said at least one resistor by said power unit as a function of a temperature of said at least one resistor detected by said thermocouple, wherein said thermoregulation unit is arranged to check absorption of power of said at least one resistor and to detect, through said absorption, indications corresponding to any faults of at least one of an operation and an installation of said flow unit; wherein said thermoregulation unit incorporates a unit of analysis and diagnostics for the qualitative and quantitative verification of said power absorption; and wherein said unit of analysis and diagnostics operates on a basis of a comparison between a profile of the detected absorption of power over time and a sample profile.