Protein element packaging bag sealing device

The utility model discloses a protein element packaging bag sealing device which comprises a fixing plate, a first fixing mechanism, a sliding mechanism, a fixing frame, a sliding groove, a pull rod,a second spring, a walking column, a second fixing mechanism, a support, a rotating shaft, a clamping plate and a pressing plate. The protein element packaging box has the advantages that the pull rodslides towards the edge of the side wall of the fixing plate in the pull rod direction, the pull rod is fixed with hands to avoid reset of the pull rod, the aligned protein element packaging box penetrates between the pull rod and the side wall of the fixing plate from the top direction of the fixing plate, and the packaging box continues to be pulled; the packaging bag is clamped between the clamping groove and the clamping strip, and preliminary sealing of the packaging bag is achieved; when in use, the hands of an eater for fixing the pull rod are loosened, the packaging bag moves away from the clamping plate along