Conveyor with flexible zone parameter control

Conveyors: power-driven – Conveyor system for arranging or rearranging stream of items – By longitudinally respacing successive articles in stream

Reexamination Certificate

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Details

C198S575000, C198S781050

Reexamination Certificate

active

06729463

ABSTRACT:

FIELD OF THE INVENTION
The present invention relates to a conveyor with zone control. In particular, the present invention relates to a conveyor with flexible zone control.
BACKGROUND OF THE INVENTION
Automated manufacturing systems use conveyors to carry a workpiece or product along a conveyor path to various stations for manufacture or assembly. Workpieces are deposited to the conveyor and intermittently moved along the conveyor to various operation stations for manufacture or assembly. During assembly operations it is desirable to sequence movement of the workpieces along the conveyor path to maintain sufficient workpiece spacing so that workpieces do not stack up or crash into one another while the workpieces are stopped at various stations for assembly.
Prior conveyor systems incorporate zone control systems for controlling movement of workpieces or units along the conveyor path. The conveyor path is divided into multiple fixed control zones. Each fixed control zone includes at least one drive mechanism for moving workpieces or units in the zone and at least one sensor for controlling operation of the drive mechanism in the zone or adjacent zones. Zone length or size is configured based upon workpiece size or length. Thus, use of the zoned conveyor is limited to the particular product or unit size for which the conveyor has been configured and does not provide flexibility for different products or workpiece sizes. For example, different form factor disc drives and drive components have different dimension sizes, and thus fixed zone conveyors do not provide flexibility for use for different form factor drives and components. The present invention addresses these and other problems and offers solutions and advantages over the prior art.
SUMMARY OF THE INVENTION
The present invention relates to a conveyor system with flexible zone parameter control which provides flexibility for use with different units or workpieces having different dimensions and sizes. The conveyor system includes a zone control assembly to configure zone control units or control zones to provide flexible zone parameters for conveying products or materials for manufacture or for other purposes such as distribution and sorting.


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