A pocket sealing machine for heat sealing a plastic bag or microwavable bag with an article stored therein so as to seal and make a vacuum comprising:
- a lower housing;
- two spaced resilient members and an intermediate spring disposed in a front compartment of the lower housing;
- an electric heater mounted on the resilient members and the spring;
- a switch and a power socket respectively mounted on one side and the rear of the lower housing;
- an upper housing comprises a pivotal cover;
- a compartmented member secured to a front bottom of the cover;
- a pressing member and a pressing block located in the compartmented member;
- a spring provided between the cover and the compartmented member and urged against the pressing member;
- an elastic piece having a forward hole put on a projection projected dowonwardly from the cover;
- and
- a vacuum assembly mounted on the lower housing and comprising a motor assembly, a hose, a suction head, a spring and a casing, wherein the spring being put on one end of the suction head and the suction head being disposed in the casing, with a lateral bar of the suction head extending through a channel of the casing with a rib on the bar being anchored in a first slot of the casing, with the suction head inserted into the hose and then into the motor assembly;
- whereby in response to placing one end of an opening of the bag in the mouth and energizing the machine, pushing the rib to move it from the first slot to the second slot will extend a forward portion of the suction head into the opening of the bag;
- in an initial sealing operation pressing the cover toward the vacuum assembly will engage the pressing block with the electric heater for starting to weld the opening of the bag, and moving the machine from one end of the opening of the bag toward the other end thereof until a hole at the opening of the bag having substantially the same size as a section of the suction head is formed at a position near the other end wherein the roller rotates for making the moving as straight as possible and pressing opening of the bag for providing flatness thereto;
- in a suction operation of the bag releasing the cover will disengage the pressing block from the electric heater, pressing the switch will activate the motor assembly with the initial sealing operation being disabled and the suction head being enabled to suck air from the bag and direct air to the air outlet for discharge via the hose and the air inlet, and releasing the switch will deactivate the motor assembly when most of air inside the bag has been exhausted;
- and in a final sealing operation of the bag, pushing the rib to move it from the second slot to the first slot will retract the forward portion of the suction head into the casing, moving the machine to cover the hole of the bag, and pressing the cover toward the vacuum assembly will engage the pressing block with the electric heater for completely welding the opening of the bag.