FIELD: plastic processing.
SUBSTANCE: method for controlling an injection moulding system having an extruder, feeding material continuously to an accumulator, portioning material intermittently to an injection device, wherein the configuration of the control method enables to drive the extruder at a high speed or at a low speed respectively. High speed and the low speed define an extruder speed interval, the method comprising: acquiring a value for an actual positional change for the accumulator (ΔPOSACT); comparing the value for the actual positional change (ΔPOSACT) for the accumulator with a predicted value for the positional change (ΔPOSPRED) for the accumulator; adjusting the speed of the extruder based on the comparison result.
EFFECT: invention allows to increase efficiency of the device.
10 cl, 5 dwg
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