Heating control device of machine barrel of injection molding machine

The utility model relates to a heating control device of a machine barrel of an injection molding machine, and belongs to the field of the injection molding machine. The machine barrel of the existing injection molding machine is not provided with a heating device, so that the melting effect of plastic in the machine barrel of the injection molding machine is poor. The heating control device comprises a screw rod, an outer layer machine barrel, an inner layer machine barrel, a coil, a heat insulation layer, a temperature sensor, a micro-control unit and a human-computer interface, wherein the screw rod is arranged in the inner layer machine barrel; the coil is arranged on the outer surface along the axial direction of the inner layer machine barrel; the coil is covered by the heat insulation layer; the heat insulation layer is covered by the outer layer machine barrel; the temperature sensor is arranged on the outer layer machine barrel; the temperature sensor is connected with the micro-control unit by a lea