Apparatus for feeding packaging strap

Details Apparatus for feeding packaging strap Apparatus for feeding packaging strap

1974-03-25

1976-03-30

Schacher, Richard A.

Advancing material of indeterminate length

With material-responsive control means

To regulate longitudinal movement of material

226 49, B65H 2532

Patent

active

039469212

ABSTRACT:
An automatic apparatus for feeding packaging strap, including a strap feeding mechanism having a pair of reversibly rotatable feed rolls for feeding and returning the strap and a detector for detecting the amount of strap fed and returned. Strap is fed to the feeding mechanism by a prefeeding mechanism having unidirectionally rotatable prefeed rolls and a detector for detecting the amount of strap prefed. A control mechanism determines the difference between the amount of strap fed and returned by the feeding mechanism and controls the prefeeding mechanism to prefeed an amount of strap equal to the difference.

REFERENCES:
patent: 3045884 (1962-07-01), Buhrendorf
patent: 3174610 (1965-03-01), Barbugallo
patent: 3590729 (1971-07-01), Plattner
patent: 3605465 (1971-09-01), Timmerbeil

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