Molding machine and temperature control method thereof

摘要

A molding machine (10) has induction heating means for heating a heating cylinder (51) by induction heating. The induction heating means includes a plurality of induction heating coils (112-1 to 112-4) provided in the heating cylinder (51) and a plurality of electric power supply control parts that control electric power supplied to those coils. The electric power supply control parts have heating part controlling inverters (114-1 to 114-4) to which an electric power is supplied from a direct current power source circuit (40), respectively. Each of the heating part controlling inverters performs a frequency control or an electric current control of an electric power to supply.