Packing mechanism of packing machine

The invention discloses a packing mechanism of a packing machine. A compression packing cavity is formed in a packing machine housing; a hydraulic mechanism is mounted at the upper part of the compression packing cavity; bundling tape devices are mounted in the packing machine housing, and comprise bundling tape rollers, bundling tape guiding pipes, vertical grooves, bundling tape bottom plate grooves and bundling tape knotting lugs; a left punch hook groove and a right punch hook groove are formed in the lower surface of a hydraulic plate; the left punch hook groove extends to the rear end ofthe hydraulic plate from the front end of the hydraulic plate; the rear end of the left punch hook groove is aligned to the vertical groove; the right punch hook groove extends to the rear end of thehydraulic plate from the front end of the hydraulic plate; the rear end of the right punch hook groove is aligned to the right vertical groove; the packing mechanism for the packing machine further comprises a punch; the punc