Vacuum conveyor

Details Vacuum conveyor Vacuum conveyor

1997-02-21

1998-06-09

Valenza, Joseph E.

Conveyors: power-driven

Conveyor system for arranging or rearranging stream of items

By laterally or vertically moving successive items in...

198493, 1986891, B65G 4726

Patent

active

057621748

ABSTRACT:
The invention provides both a vacuum combiner and vacuum conveyor for combining a plurality of lightweight containers arranged in a random order and width into a single row of containers, and moving the containers on a conveyor line to downstream workstations at high speed rates. The vacuum combiner includes one or more conveyor belt-type surfaces, while the vacuum conveyor has a single belt-type surface, all of which have openings defined therein. Both devices also have at least two guide rail assemblies, and a vacuum source that adds a "drag" or "weighing" force on the light-weight containers moved thereon. The conveyor belt-type surfaces of the combiner and the conveyor may or may not be moving at the same velocity. The guide rail assemblies are each comprised of a plurality of rods and rollers, wherein the rollers are aligned in a unique anti-jamming staggered or diamond pattern. The guide rail assemblies are positioned such that they are either substantially upright, or are positioned such that each is inclined over and above the conveyor surfaces. The rods within the guide rail assemblies may be substantially vertical, or they may be inclined forward. One vacuum source may be used for the plurality of conveyor surfaces, or one vacuum source may be used for each individual conveyor. The vacuum force should be such that it is greatest on the discharge conveyor surface and lowest on the infeed conveyor surface. In an alternative embodiment, the level of vacuum applied to the conveyor surfaces increases along the length of each conveyor surface.

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patent: 5234097 (1993-08-01), Okuyama
patent: 5311979 (1994-05-01), Risley et al.
patent: 5373933 (1994-12-01), Planke et al.
patent: 5605217 (1997-02-01), Risley et al.

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