Thermal sealing device for plastic thin film bag maker

The utility model relates to a thermal sealing device for a plastic thin film bag maker, which comprises a power unit, pulley wheels 2, 3 and 4, a feed roller 5, a paper out wheel 7, a rubber wheel 6 and a heat sealing wheel 8. The utility model is characterized in that the heat sealing wheel 8 is provided with one to four heat sealing knives 9; a spring 18 is arranged between the heat sealing knife 9 and the heat sealing wheel 8; the side of the rubber wheel 6 is provided with a deflector rod 13 with a crank rod 15 and magnetic suction 14. The utility model can regulate the heat-sealing time and the heat-sealing pressure, not only can be in heat seal in high speed and smoothness, but also can ensure the heat seal quality. The manufacturing cost is low, and the operation is convenient.