Quantitative packaging machine for biological humic acid water-soluble fertilizer liquid

The utility model relates to the technical field of water-soluble fertilizer production equipment, in particular to a biological humic acid water-soluble fertilizer liquid quantitative packaging machine, which is convenient for adjusting a clamping tool so as to meet the clamping of packaging bags with different specifications and improve the usability, and comprises a filling machine, a controller and a filling head are arranged on the filling machine, clamping tools are arranged on the two sides of the filling machine and located below the filling head, each clamping tool comprises two connecting blocks, telescopic cylinders are arranged on the sides, close to each other, of the two connecting blocks, connecting frames are arranged at the ends, close to each other, of the two telescopic cylinders, and mounting frames are arranged at the ends, close to each other, of the two connecting frames; a screw rod is arranged on each mounting frame, mounting grooves are formed in the front part and the rear part of e