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Pressure Relief Staging Device for Robotic Parts-Feeder Escapement

IP.com Disclosure Number: IPCOM000039713D
Original Publication Date: 1987-Jul-01
Included in the Prior Art Database: 2005-Feb-01
Document File: 2 page(s) / 43K

Publishing Venue

IBM

Related People

Brown, DL: AUTHOR

Abstract

In a gravity parts-feeder fixture aligned at an angle from the horizontal, the static force on the parts in the lower end of the feeder increases with the number of parts. This increasing force can result in the inability of a robot gripper to remove a part from the fixture. A staging device is described which relieves this pressure and allows easy robot removal of the part. Relief staging device 10 consists of two double-acting pneumatic cylinders 11, 12 which have separator blades 13, 14, respectively. Relief staging device 10 is attached with a mounting bracket to inclined parts-feeder fixture 15 on which are staged parts 16, for example, cylindrically-shaped brackets.

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Pressure Relief Staging Device for Robotic Parts-Feeder Escapement

In a gravity parts-feeder fixture aligned at an angle from the horizontal, the static force on the parts in the lower end of the feeder increases with the number of parts. This increasing force can result in the inability of a robot gripper to remove a part from the fixture. A staging device is described which relieves this pressure and allows easy robot removal of the part. Relief staging device 10 consists of two double-acting pneumatic cylinders 11, 12 which have separator blades 13, 14, respectively. Relief staging device 10 is attached with a mounting bracket to inclined parts-feeder fixture 15 on which are staged parts 16, for example, cylindrically-shaped brackets. Staging device 10 is fixed at a point along the line of parts 16 at a position to allow a chosen number of parts (in this illustration four) to be essentially in a pressure-free condition. In operation, the staging device is normally rigged so that cylinder 13 is extended and cylinder 14 is retracted. On demand, a solenoid valve is triggered to open air ports which reverse the cylinder positions; cylinder 14 extends to capture the row of parts, and cylinder 13 retracts to release a part to the staging area. Another signal reverses the cylinders back to the normal position. The cycles are repeated in a timed manner for controlled multiple feed operation.

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