Package making – With cover-adjunct application or formation – By printing
Patent
1974-09-18
1976-03-23
McGehee, Travis S.
Package making
With cover-adjunct application or formation
By printing
53371, 53386, B65B 4330, B65B 4334, B65B 4346, B65B 4360
Patent
active
039451739
ABSTRACT:
A machine for automatically filling and sealing bags. Bags are placed in flat condition on a stack. Suckers pick up the uppermost bag from the stack and move it to a platform which has a substantial horizontal component and on which the bag is placed in a predetermined position. Thereupon, grippers engage the opposite sides of the bag near the bag mouth. Next, spreaders swing into the bag mouth to open the same and hold the same open. The spreaders and grippers are mounted to turn about a horizontal axis and they swing the bag held by the grippers with its mouth maintained open by the spreaders through an arc to a position in which the bag is upright and located beneath the spout of a batching machine. The bag then is filled while it is held by the grippers. The grippers also are mounted to turn about a vertical axis and do so turn after the bag is filled, carrying the bag with them through an arc in a horizontal plane. The path of movement of the bag about the vertical axis causes the mouth of the bag to move into operative engagement with a closing device such as a sewing machine, taping machine or sealing machine. After filling but prior to closure, the grippers together with the filled bag are moved first up and then down through a short stroke to eliminate air in the bag above the material with which the bag just has been filled. The filled and closed bag is rested on a supporting plate from which, after the elimination of air from the bag and the closing of the bag, the bag is slid by tilting of the plate onto a delivery conveyor.
REFERENCES:
patent: 2864219 (1958-12-01), Knisely
patent: 3112777 (1963-12-01), Lohse
patent: 3190049 (1965-06-01), Van Der Meulen
patent: 3398503 (1968-08-01), Bertoglio
patent: 3566578 (1971-03-01), Thorne et al.
Culver Horace M.
McGehee Travis S.
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