Heat sealing device for processing food contactable material packing material

The utility model discloses a heat sealing device for processing a food contactable material packing material, which comprises a heat sealing device capable of being loaded on a packing material packing machine, the heat sealing device comprises support columns, two groups of guide columns, a heat sealing assembly, support plates, a pressing block and an air cylinder, the two groups of guide columns are vertically arranged, the upper and lower ends of the two groups of guide columns are respectively sleeved with the two support plates, and the two groups of guide columns are respectively sleeved with the pressing block. The close ends of the two supporting plates are connected with the pressing block and the heat sealing assembly correspondingly. The air cylinder is fixed outside the supporting plate at the upper end of the guide column, the piston shaft end of the air cylinder is connected with the heat-sealing assembly, and the heat-sealing assembly can be close to or away from the pressing block when the a