Stretching device suitable for biaxially oriented polypropylene film production

The utility model relates to the technical field of polypropylene film production equipment, in particular to a stretching device suitable for biaxially oriented polypropylene film production, and adopts the technical scheme that the stretching device comprises a supporting table and a top plate, and a second mounting plate and a third mounting plate which are symmetrically distributed are mounted on the upper end surface of the supporting table; first stretching wheels which are symmetrically distributed are rotatably mounted between the second mounting plates, second stretching wheels which are symmetrically distributed are rotatably mounted between the third mounting plates, first mounting plates which are symmetrically distributed are mounted at the side end of the supporting table, and first hydraulic equipment is mounted at the side ends of the first mounting plates; a stretching frame is installed at the tail end of a hydraulic rod of the first hydraulic equipment, supporting rods distributed in an arr