Temperature control device of UV printing machine

The utility model discloses a temperature control device of a UV (ultraviolet ray) printing machine, which is arranged in a cooling system of the UV printing machine for controlling the operating temperature of a UV curing drying device; a temperature sensor for sensing the operating temperature and a water flow controller for controlling the cooling water flow rate are arranged in the circuit of the cooling system; and a water temperature controller for controlling the cooling water temperature is arranged in a cooling tower of the UV printing machine. Due to the adoption of the temperature control device which controls the cooling water flow rate and temperature by sensing temperature, and the temperature and the flow rate of cooling water can be adjusted according to the sensed temperature, so as to ensure that the UV curing drying device is in a reasonable range of operating temperature, so that the UV curing drying device is prevented from deformation caused by high temperature, and water globules can no