Heat-sealing, spot-breaking, cutting and punching integrated equipment for plastic packaging bags

The utility model relates to a plastic packaging bag heat sealing, spot breaking, cutting and punching integrated device which comprises a protective cover and a conveying platform, a heat sealing mechanism is arranged at the upper end of the conveying platform, a spot breaking cutter assembly is arranged on one side of the heat sealing mechanism, and an exhaust compressing mechanism and a punching mechanism are sequentially arranged on the other side, away from the spot breaking cutter assembly, of the heat sealing mechanism. The heat-sealing mechanism comprises a positioning plate, supporting rods are arranged on the two sides of the positioning plate, a first pushing air cylinder is arranged at the upper end of the positioning plate, a lifting plate is arranged at the piston end of the first pushing air cylinder, a heat-sealing cutter is arranged at the lower end of the lifting plate, and heaters are arranged on the two sides of the heat-sealing cutter. The utility model has the beneficial effects that the