Automatic high speed wrapping machine

Details Automatic high speed wrapping machine Automatic high speed wrapping machine

2005-11-08

2005-11-08

Gerrity, Stephen F. (Department: 3721)

Package making

With means responsive to a sensed condition

Concurrent control of contents and receptacle feeds

C053S074000, C053S550000, C053S568000, C053S373500, C053S374300, C053S374600

Reexamination Certificate

active

06962033

ABSTRACT:
An automatic high speed packaging machine for wrapping packages in polymer film is disclosed wherein the film seal at the sides and ends of the packages is made at a high rate of speed as the packages travel through the machine. The packages travel continuously in a straight line through the machine. The packages are delivered at the input end of the machine by an in-feed conveyor into a film inverting head where the packages are surrounded by longitudinally half-folded polymer film. Thereafter, the packages are transported to a side sealing mechanism which forms a longitudinal seal in the film on the side opposite the fold. Finally, the packages are transported to a traveling end seal mechanism where a lateral seal is formed at each end of the package and the film web connecting succeeding packages is severed. The machine produces packages which have a sealed film wrap around the entire package. If desired, the polymer film may be of a heat shrinkable variety and the sealed package may be passed through a shrinking oven to produce a package having a tight “shrinkwrap” film covering.

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