| 摘要 |
An inert gas-filling and packaging apparatus which is adapted to fill an inert gas in containers, each having a content and seal the containers one by one after coverage of an opening of the container with a sealing film is described. The apparatus comprises a plurality of buckets for individually receiving a container having an upper opening, a film supplying means for supplying a sealing film arranged to move over the plural buckets, a vertically movable keep pad for keeping the sealing film in contact with the upper face of the bucket, the contact member having grooves provided at opposite sides of the plural buckets, through which the nozzle is inserted to inject an inert gas, and a nozzle for injecting the inert gas. The sealing film is sealed on the container by means of a heat sealing means surrounded by the keep pad. The heat sealing by the apparatus ensures a good appearance of a final product without involving any wrinkles in the sealed film. A heat sealer is also described having two sealing members which are controlled to operate at different sealing forces whereby easy peeling of the sealed film is ensured. When this heat sealer is applied to the inert gas filling and packaging apparatus, ideal heat sealing is realized.
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