Micro-spraying device for detecting and regulating temperature of die-casting die

The invention relates to a micro-spraying device for detecting and regulating the temperature of a die-casting die. The micro-spraying device comprises a spraying mechanism, a thermal imaging camera and a controller. The spraying mechanism comprises a spraying base, two nozzle assemblies, a movable sliding table and two bearing plates. Each bearing plate is used for installing at least one die-casting die. The two nozzle assemblies are installed on the two sides of the spraying base correspondingly and are opposite to the two bearing plates correspondingly. Each nozzle assembly includes a plurality of nozzles. The thermal imaging camera is used for obtaining thermal images of the die-casting dies on the two bearing plates. And the controller controls the movable sliding table to drive the spraying seat to move according to an image area of which the temperature is not within a preset temperature range in the thermal image, so that the nozzle is driven to spray a real object area, corresponding to the image ar