Package making – Wrapping machines
Patent
1982-04-26
1985-04-02
Coan, James F.
Package making
Wrapping machines
53557, B65B 728
Patent
active
045079048
ABSTRACT:
In a stretch film wrapping machine improved film feeding apparatus facilitates the threading of stretch film into film feeding jaws. Sealing/conveying apparatus is closely located above the film feeding jaws and is mounted to be pivotally moved in line with the machine away from the film feeding jaws. A package sealing holddown is positioned over the sealing/conveying apparatus to ensure firm contact between wrapped packages and the sealing/conveying apparatus. The sealing holddown is pivotally mounted to similarly move away from the film feeding jaws in line with the film wrapping machine. Inexpensive latching means are incorporated into the sealing holddown and the package sealing conveyor to maintain them in an elevated position to provide free access to the film feeding jaws. The package holddown comprises a roller with a central section of a first diameter and two outer sections of a second larger diameter which are connected to the central section by frustum sections. The holddown roller is driven by belts to complement the conveyor action of the sealing/conveying apparatus.
REFERENCES:
patent: 2597041 (1952-05-01), Stokes
patent: 3496700 (1970-02-01), McCabe et al.
patent: 3866387 (1975-02-01), Davis
patent: 4178740 (1979-12-01), Groom et al.
Coan James F.
Hobart Corporation
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