METHOD OF THERMAL CONTROL ON INJECTION MOULDING MACHINE MOULD AND DEVICE TO THIS END Russian patent published in 2010 - IPC B22D11/22 B22D27/04 

FIELD: process engineering.

SUBSTANCE: invention relates to metallurgy. Proposed method consists in heating the mold prior to injecting melt and cooling the mould down to part withdrawal temperature. Melts represents thermosoftening plastic material. Mould is heated to melt temperature prior to injecting thermosoftening plastic material therein. Mould is heated by feeding heat carrier from high-temperature heat carrier tank. In cooling the mould with the part, mould temperature is regulated by feeding the controlled-temperature coolant. Said controlled temperature is obtained by mixing low-temperature heat carrier with high-temperature heat carrier fed from appropriate tanks. Proposed device comprises heat carrier heater, heat exchanger for cooling heat carrier, driven pump to feed heat carrier into mould, heat carrier temperature pickups, high-temperature heat carrier tank with heater, low-temperature heat carrier tank with heat exchanger, three-way valve communicating mould outlet branch pipe with heat carrier tanks inlet branch pipes, and three-way valve communicating tanks outlet branch pipes with the pump intake branch pipes.

EFFECT: higher efficiency, reduced power consumption in moulding.

2 cl, 1 dwg