Pressing air cylinder supporting frame

The utility model provides a material pressing air cylinder supporting frame which comprises an adjusting supporting assembly and fixed supporting seat frames symmetrically distributed at the two ends of the adjusting supporting assembly, and the adjusting supporting assembly comprises a supporting cross beam and supporting sliding frames symmetrically arranged at the two ends of the supporting cross beam. The supporting sliding frame is adjustably installed on the fixed supporting seat frame through locking bolts, a plurality of strip-shaped sliding grooves installed in cooperation with the locking bolts are formed in a vertical side plate of the fixed supporting seat frame, and limiting screw assemblies are further symmetrically installed on the supporting cross beam. A bent locking supporting part extending outwards is arranged at the top of the fixed supporting seat frame, a U-shaped locking groove is formed in the locking supporting part, a screw is arranged on the lower portion of the limiting screw ass