Method for detecting insert objects in an injection-moulded part

A method for detecting an insert object in an injection-moulded part, wherein the insert object is rigidly connected to the injection-moulded part during the injection moulding process due to the fact that the insert object was placed into a cavity that is surrounded by a mould wall of a mould before the beginning of the injection moulding cycle, wherein:

• a) that at least one temperature sensor or pressure sensor is arranged in the mould wall and records and analyzes at least one measured value in the form of a temperature or a pressure at least pt one point in time during an injection moulding cycle,
• b) that it is determined if an insert object was present at a certain location in the cavity during the injection moulding cycle based on the analysis, and
• c) that the injection-moulded part is sorted as acceptable part or reject part after its election based on the analysis of the measure value;
• and
• wherein it is determined if no insert object, exactly one insert object or ore than one insert object was present at a certain location in the cavity during the injection moulding cycle based on the analysis of the measured value.