Presses – Binding – Binder applying
Patent
1978-05-19
1979-07-24
Wilhite, Billy J.
Presses
Binding
Binder applying
100 32, B65B 1306
Patent
active
041619102
ABSTRACT:
An apparatus is provided on a strapping machine frame adjacent a strap chute and adjacent a strap end gripping and sealing assembly and has a pivotably mounted strap guide arm and gripper for guiding the strap during feeding in a first, upper position and for gripping the strap when the arm moves downwardly away from the first position. A single, reversible, rotating drive motor is mounted for movement with the guide arm and powers a gear drive assembly which is engaged with the motor and movable therewith for (1) rotating feedwheels to feed the strap to form a loop when the motor is rotating in a first direction, (2) rotating the feedwheels to withdraw the strap to pretension the loop with a first predetermined tension when the motor is rotating in a second direction, and (3) rotating a high tension pinion gear when both (a) the motor is rotating in the second direction and (b) the tension in the strap exceeds the predetermined, first tension. During high tensioning, the pinion gear moves along a rack and pivots the guide arm out of the first position to a second position whereby a gripper is actuated to grip the trailing portion of the strap and pull the gripped strap, thereby drawing a higher, second tension in the loop.
REFERENCES:
patent: 3023693 (1962-03-01), Crosby
patent: 3232217 (1966-02-01), Harmon
patent: 3493014 (1970-02-01), Orban
patent: 3526187 (1970-09-01), Gilliard
patent: 3566778 (1971-03-01), Vilcins
patent: 3752058 (1973-08-01), Lems
Crosby George A.
Leslie John H.
Signode Corporation
Wilhite Billy J.
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