Film sealing knife

The utility model relates to the technical field of film sealing knives, in particular to a film sealing knife, which comprises a film sealing knife body, a heating structure, a fixing mechanism and a blade structure, a mounting screw hole is arranged inside the film sealing knife body, an open slot is arranged at the bottom of the film sealing knife body, and the heating structure is arranged inside the film sealing knife body. According to the film sealing cutter, the fixing mechanism is arranged, when the film sealing cutter is used, the cutting edge structure is inserted into the open groove from the side face of the film sealing cutter body, the cutting edge structure is installed in the installation groove, the installation groove is moved to make contact with the fixing plate, the fixing screw is screwed down, the installation groove and the fixing plate are fixed, and therefore the cutting edge structure is fixed into the film sealing cutter body; when the film sealing knife is damaged, the fixing mec