Form-fill-seal packaging method and apparatus
AssigneeHayssen Manufacturing Company
InventorRobert C. James
Life of this patent
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Abstract
A form-fill-seal packaging method and apparatus in which a web of flexible packaging material is pulled from a supply and fed over a device for forming it into tubing, product to be packaged is provided in the tubing, and the tubing is sealed to form packages, and in which the web is pulled forward from the supply as one operation and the tubing is drawn forward and thereby taken up as an accompanying but separate operation with the take-up such that the web is pulled over the forming device under tension.
Claims32
The method of forming, filling and sealing packages wherein a web of flexible packaging material is pulled from a supply and fed over means for forming it into tubing, and wherein product to be packaged is provided in the tubing and sealing operations are performed on the tubing to seal it to form packages, characterized in that the web is pulled from the supply, measured for each sealing operation, and fed toward the forming means by applying a forward force to the web between the supply and the forming means, and a forward force is applied separately to the tubing to draw the tubing forward, the latter force being applied to the tubing at a rate such as to pull the material forward over the forming means with the material under tension to maintain it taut, the measurement of the web for each sealing operation being effected before the forming of the web by the forming means.
Apparatus for forming, filling and sealing packages wherein a web of flexible packaging material is pulled from a supply and fed over means for forming it into tubing, and wherein product to be packaged is provided in the tubing and sealing operations are performed on the tubing to seal it to form packages, characterized in having web feeding and measuring means located between the supply and the forming means for applying a forward force to the web between the supply and the forming means for measuring the web for each sealing operation and feeding the web forward toward the forming means, and tubing feeding means downstream from the forming means for applying a forward force separately to the tubing to draw the tubing forward, the latter force being applied to the tubing at a rate such as to pull the material forward over the forming means with the material under tension to maintain it taut, the web feeding and measuring means being operable to effect the measurement of the web for each sealing operation before the forming of the web by the forming means.
Dependencies are inferred from the claim text.