Loose flap detector and case ejector system for wrap-around pape

Details Loose flap detector and case ejector system for wrap-around pape Loose flap detector and case ejector system for wrap-around pape

1974-10-10

1976-02-17

Knowles, Allen N.

Classifying, separating, and assorting solids

Precedent preparation of items or materials to facilitate...

Selective differentiation

2091117T, B03B 100

Patent

active

039390632

ABSTRACT:
Method and apparatus for detecting insecurely glued closure flaps on wrap-around paperboard cartons and for diverting defectively sealed cartons from the packaging line. A striking device in the form of an impact roller strikes the leading edge of each carton as it moves along a conveyor belt. Loose or insecure flaps opened by the impact are detected as the carton passes through a photocell station. Upon identification of an open flap condition a pivotal eject chute forming a part of the conveyor table is actuated downwardly to divert the rejected carton to a remote location for inspection and resealing or replacement.

REFERENCES:
patent: 2699672 (1955-01-01), Couch et al.
patent: 2922519 (1960-01-01), Radley
patent: 3117441 (1964-01-01), Zimmerman
patent: 3606014 (1971-09-01), Linn
patent: 3703235 (1972-11-01), McEnery
patent: 3825750 (1974-07-01), Hayase et al.

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