초록 ▼

An automatic packaging apparatus has a bag forming device for automatically forming bags each containing one or more articles and a vacuum sealing device for sealing open ends of the bags in a vacuum. The vacuum sealing device has a plurality of bag supporting devices revolving synchronously with th

An automatic packaging apparatus has a bag forming device for automatically forming bags each containing one or more articles and a vacuum sealing device for sealing open ends of the bags in a vacuum. The vacuum sealing device has a plurality of bag supporting devices revolving synchronously with the feeding device and having respective pillow heads for resting thereon the open ends of the bags and vacuum covers each cooperating with a respective one bag supporting device to form one vacuum box in which the open end of the bag is sealed by and between a heating member provided in the vacuum box and the pillow head. Further the pillow head or a platform of the bag supporting device is moved vertically.

대표청구항 ▼

An automatic packing apparatus comprising; a bag forming device for automatically forming bags each containing at least one article; and a vacuum sealing device for sealing open ends of the bags in a vacuum; said bag forming device further comprising: a tubular film forming device in the shape of a

An automatic packing apparatus comprising; a bag forming device for automatically forming bags each containing at least one article; and a vacuum sealing device for sealing open ends of the bags in a vacuum; said bag forming device further comprising: a tubular film forming device in the shape of a tube for continuously forming an elongated sheet of film into a tube of the film and wrapping the articles fed into the tubular film forming device in a line; a film sealing and cutting device for cutting the tube of film at preset space intervals to form each of the bags, one end of which is completely sealed and the other end of which is partly sealed; and a feeding device for feeding the bags formed by the film sealing and cutting device to the vacuum sealing device at a faster speed than that of the travel of the tube; said vacuum sealing device further comprising: at least one bag supporting device, revolving synchronously with the feeding device so that each bag supporting device can receive a respective one bag fed by the feeding device along a traveling path, the bag supporting device having a base plate which is provided on travel means for transferring the bag supporting devide, a pillow head fixed to the base plate on one side thereof for resting thereon the open end of the bag and a plate-like supporting member supported by at least one elastic member over the base plate, the upper surface of the pillow head and the plate-like supporting member being normally positioned in the same horizontal plane; at least one vacuum cover, cooperating with each bag supporting device to form a vacuum box in which the open end of the each bag is sealed under a vacuum and revolving synchronously with said bag supporting device while moving vertically to open and close said vacuum cover having a heating member for sealing the open end of each bag and a plurality of pushing members formed on the inner surface thereof, which abut against the plate-like supporting member to lower the supporting member under the weight of the vacuum cover when the vacuum cover is placed on the bag supporting device; and a device for evacuating the inner space of the vacuum box.