Air quantity adjusting mechanism of air knife fan

The utility model discloses an air knife fan air volume adjusting mechanism which comprises an air knife fan body, an air pipe is connected to the air knife fan body, an air knife is connected to the end of the air pipe, a bottom plate is fixedly connected to the bottom of the air knife fan body and placed on a containing plate, a damping assembly is arranged at the bottom of the containing plate, and multiple sets of threaded grooves are formed in the two sides of the top of the containing plate. Clamping plates are arranged on the two sides of the top of the containing plate, bolts penetrate through the two clamping plates, and the bolts are matched with the threaded grooves; by additionally arranging the control panel, the air blowing parameters of the air knife fan body can be adjusted through the control panel according to the thickness of a zinc layer, the air quantity is relatively concentrated when the air knife blows out, the plate surface quality is improved, the energy waste is reduced, meanwhile,