Solder paste printing machine

The invention relates to the technical field of solder paste printing, and discloses a solder paste printing machine. The machine comprises a rack, an operation table, a workbench, a printing lifting mechanism, a tool bit, a tool bit driving mechanism, a steel mesh, a sliding rail and a supporting arm, wherein the steel mesh comprises a square supporting frame and a mesh plate located on the inner side of the supporting frame, a cavity layer is formed in the supporting frame, a liquid leakage opening is formed in the inner wall of the peripheral side of the supporting frame, a storage frame is arranged in the cavity layer, through holes are formed in the positions, corresponding to the abutting positions of pressing plates, of the two ends of the supporting frame, stand columns penetrating through the through holes are arranged on the upper side of the storage frame, a transverse rod which is connected to the upper ends of the multiple stand columns at the same time and used for abutting against the pressing