Web supply mechanism for an indexing motion packaging machine

Details Web supply mechanism for an indexing motion packaging machine Web supply mechanism for an indexing motion packaging machine

1991-08-30

1992-12-15

Coan, James F.

Package making

Methods

Forming or partial forming a receptacle and subsequent filling

53579, 226 44, B65B 4112

Patent

active

051706113

ABSTRACT:
An apparatus and method for supplying web material to an indexing advancement mechanism, such as may be associated with a packaging machine which forms the web into a component of a package. The web is supplied from a supply roll to an unwind mechanism, which continuously unwinds the web during indexing advancement of the web by the advancement mechanism of the packaging machine. The unwind mechanism includes an unwind motor which is operable to vary the rate at which the web is unwound from the supply roll. Tension is maintained in the web upstream of the advancement mechanism by a take-up mechanism interposed between the unwind mechanism and the advancement mechanism. The unwind motor speed is controlled by the position of a movable arm associated with the take-up mechanism.

REFERENCES:
patent: 3244779 (1966-04-01), Levey et al.
patent: 3385493 (1968-05-01), Klein et al.
patent: 3587959 (1971-06-01), Glover
patent: 3918237 (1975-11-01), Stark et al.
patent: 4897985 (1990-02-01), Buchko et al.
patent: 5000727 (1991-03-01), Hatchell et al.

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