Printing roller cooling equipment for printing equipment

The utility model discloses printing roller cooling equipment for printing equipment, and relates to the technical field related to printing rollers. The cooling device comprises a printing machine shell, a cooling mechanism and a cleaning and brushing assembly. A printing roller is mounted in the printing machine shell; the cooling mechanism comprises a water circulation assembly and a heat dissipation auxiliary assembly, the water circulation assembly is fixedly connected to the two ends of the printing roller, and the heat dissipation auxiliary assembly is rotationally arranged in the printing roller; the brushing assembly is rotationally connected into the printing machine shell. According to the printing roller cooling device, cooling water can be fully filled in the printing roller through the water circulation assembly under the matching effect of the heat dissipation auxiliary assembly, after heat dissipation is finished, the heat dissipation auxiliary assembly is started to rotate along the inner wal