Coating mechanism of printing machine

The utility model discloses a coating mechanism of a printing machine, and relates to the field of printing. The device comprises a machine table and a fabric placing plate positioned on the machine table, a silk screen is arranged on one side of the fabric placing plate away from the machine table; an outer frame is detachably connected to one side, away from the fabric placing plate, of the silkscreen; a scraping plate is arranged right above the silk screen; a guide rail for the scraper to reciprocate is arranged right above the silk screen on the machine table; characterized in that it ischaracterized in that it comprises, adjusting rods are symmetrically arranged in the outer frame; the opposite sides of the adjusting rods are in threaded connection with adjusting bolts, magnetic assemblies are arranged at the ends, away from the adjusting rods, of the adjusting bolts, the adjusting rods are detachably connected with the outer frame through the magnetic assemblies and the adjusting bolts, and the color p