Quick sealing machine for plastic packaging bag

The utility model relates to the technical field of packaging bag processing, in particular to a plastic packaging bag rapid sealing machine which comprises a conveying belt body, a sealing machine, a motor, a plastic packaging bag, the sealing machine is movably arranged at the rear end of the outer wall of the conveying belt body, the motor is fixedly installed in the middle of the upper side of the interior of the sealing machine, and a lifting mechanism is arranged on the conveying belt body. The lifting mechanism is arranged in the middle of the interior of the conveying belt body, and the buffering assembly is arranged in the middle of the left side and the right side of the interior of the sealing machine. The first hot pressing plate is matched with the second hot pressing plate below the outer wall to clamp, stabilize and seal the plastic packaging bag between the two groups, and during use, part of extrusion force generated during extrusion of the first hot pressing plate can be reduced through the