Automatic article unloader

Details Automatic article unloader Automatic article unloader

1988-06-16

1989-09-05

Spars, Robert J.

Conveyors: power-driven

Conveyor section

Bucket

1984761, 414417, B65G 4734

Patent

active

048630110

ABSTRACT:
This relates to the removal of articles from a nest which is travelling along a predetermined path. Most particularly, nests are mounted on an endless conveyor chain and carried thereby past various stations for forming a package beginning with a container, a product placed in the container, and finally a lid. This particularly relates to the removal of such a article as the afore described package. Each nest is provided with a pad or plate in the bottom thereof to be positioned below the container. The plate is carried by a plunger which projects downwardly through the bottom of the nest and also through the conveying chain. In accordance with this invention, the lower end of the plunger engages a ramp which pushes the plunger upwardly as the nest travels along a predetermined path to lift the package out of the nest. The nests are removably mounted on pins of the chain and in order to prevent undesired upward movement of the nests relative to the chain, there are also provided holddowns disposed on opposite sides of the path of the nests for engaging a smooth upper surface of each nest to hold it down as the plunger is being lifted by the ramp.

REFERENCES:
patent: 2181603 (1939-11-01), Long
patent: 2652791 (1953-09-01), Liston
patent: 3565232 (1971-02-01), Cadwallader
patent: 3894630 (1975-07-01), Shank, Jr.
patent: 3998030 (1976-12-01), Straub
patent: 4116325 (1978-09-01), McDonald

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