Rear -mounted shield constructs machine knife utensil and sprays cooling device

The utility model relates to a cooling device. A rear -mounted shield constructs machine knife utensil and sprays cooling device, includes a spray set main part, and the spray set main part includes at least three shower head, and cutter that the water spray direction of shower head was equipped with on shield structure machine is equipped with at least ten and sprays the hole on the shower head, and the adjacent interval that sprays the hole is 1mm~3mm, and the aperture that sprays the hole is 0.3mm~0.7mm, the spray set main part includes still that a control shower head goes out the solenoid valve of water break -make, the cutter is embedded to have temperature sensor, and temperature sensor is wireless temperature sensor, and wireless temperature sensor connects a micro -processor system, and micro -processor system connects the solenoid valve. The utility model discloses when being convenient for realize spraying the cooling to the cutter, realize the washing of cutter, guarantee the quality of cutting th