Patent ID: 8726960

Claim:
A sealing machine with a transportation structure comprising: a seal unit, the seal unit including an upper transporting set, a lower transporting set, a heating set, and a driving motor; the upper transporting set having a first conveying member driven by the driving motor, the lower transporting set having a second conveying member driven by the driving motor, and the first conveying member and the second conveying member being used to clamp a plastic bag, the upper transporting set having an upper roller disposed on an output end thereof, and the lower transporting set having a lower roller mounted on an output end thereof so as to match with the upper roller and used to press the plastic bag which is heated by the heating set; the heating set having at least a heating rail and at least one electric heating element, each heating rail horizontally extending along a conveying track of the first conveying member and the second conveying member, a slot defined between the two heating rails to accept the plastic bag which is heated and to correspond to a clamping surface of the first conveying member and the second conveying member, an outlet end of the slot corresponding to a pressing surface of the upper roller and the lower roller, at least one heating rail having a groove formed therein so as to receive the at least one electric heating element; wherein the first conveying member and the second conveying member clamp the plastic bag and convey the plastic bag to the two output ends of the upper transporting set and the lower transporting set, and an opening of the elongated plastic bag is melted by the at least one electric heating element in the slot, and thereafter the elongated plastic bag exits from the slot and is pressed and sealed by the upper roller and the lower roller.