Method of tensioning a web of packaging material

Details Method of tensioning a web of packaging material Method of tensioning a web of packaging material

1984-10-31

1987-09-08

Culver, Horace M.

Package making

Methods

Enclosing contents within progressively formed web means

53 52, 53551, 53389, 242 675, 242 7545, B65B 906, B65B 4112, B65B 4116

Patent

active

046914994

ABSTRACT:
Disclosed herein is a method of tensioning a web packaging material in a form-fill-seal packaging apparatus wherein the web is pulled from a supply roll through web feeding rolls, guided over means for forming it into tubing and fed toward means for feeding the tubing forward, and wherein articles to be packaged are provided in the tubing and sealing operations are performed on the tubing to seal it to form packages. The invention method is characterized in that the web feeding rolls and the tubing feeding means are concurrently started, and when the web feeding rolls and the tubing feeding means are stopped to form a seal on the tubing, the tubing feeding means is stopped slightly later than the web feeding rolls so that the web forward by the web feeding rolls is taken up and pulled toward the tubing feeding means under tension. Another method is disclosed for tensioning a web between the supply roll and the web feeding rolls, wherein a suitable braking is applied to the rotating supply roll so that the web fed forward by the feeding rolls is taken up under tension.

REFERENCES:
patent: 3727856 (1973-04-01), Kitch
patent: 3901002 (1975-08-01), Vetter
patent: 3979080 (1976-09-01), Herbert et al.
patent: 4278213 (1981-07-01), Rubruck
patent: 4288965 (1981-09-01), James
patent: 4501109 (1985-02-01), Monsees

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