Reversed can end ejection system

Details Reversed can end ejection system Reversed can end ejection system

1991-12-20

1992-09-08

Olszewski, Robert P.

Conveyors: power-driven

Conveyor for changing attitude of item relative to conveyed...

By conveying randomly faced items and turning items to...

198398, 209656, 209928, B65G 4308

Patent

active

051450500

ABSTRACT:
A reversed can end ejector system for detecting and ejecting a can end in reverse orientation with respect to a moving stack of otherwise similarly aligned and nested can ends is disclosed. The system utilizes a reversed end extractor bar having a hook formed at a lower end thereof. The bar is supported above the stack with a support frame so that the hook is free to ride on a cylindrical exterior ridged surface of the stack. When a reversely oriented end is encountered, the hook is sized to drop by gravity into the peripheral gap formed between the reversed end and adjacent non-reversed end. The extractor bar is pivotally connected to a mounting bar which is in turn pivotally connected to the support frame whereupon further advancement of a reversed end with the stack during hooked engagement causes the reversed end to be lifted and removed from the stack via controlled rotation of the extractor bar relative to the mounting bar and then both as a unit relative to the suppport frame. A secondary reversed end extraction hook may be mounted to the support frame downstream from the primary extraction hook. A guide rod unit mounted to the support frame upstream from the primary hook is adapted to contact any partially raised ends within the stack to guide same back into co-elevational alignment with the stack.

REFERENCES:
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patent: 3752294 (1973-08-01), Harmon
patent: 3776377 (1973-12-01), Lane
patent: 3811551 (1974-05-01), Eddy
patent: 4655350 (1987-04-01), Mojden et al.
patent: 4977998 (1990-12-01), Middeldorp

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