Tire external temperature vulcanization heat supply system

The utility model provides a tire external temperature vulcanization heat supply system, which solves the technical problems of complex structure and high cost of the existing heat supply system, and comprises a hot oil tank, a heater, a circulating oil pump, an oil outlet pipe and an oil return pipe. Wherein the hot oil tank is filled with heat conduction oil and is provided with a heater. The hot oil tank is connected with the vulcanizing machine through an oil outlet pipe and an oil return pipe respectively; a circulating oil pump and a switch valve are connected in series on the oil outlet pipe; and the oil return pipe is also connected with a switch valve in series. By means of the split type heat supply design and the combination of the circulating heat supply mode, the single heat supply system can supply heat to more than one vulcanizing machine, later maintenance or upgrading and reconstruction are facilitated, the production cost can be reduced while good energy efficiency is kept, and the system ca