Automated system that mechanically extracts spark plug tips containing valuable metals
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United States of America Patent
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Jan 10, 2023
Grant Date -
N/A
app pub date -
Jul 15, 2022
filing date -
Jul 15, 2022
priority date (Note) -
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status (Latency Note)
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Abstract
An automated, high throughput system that mechanically separates electrode tips from spark plugs to facilitate recovery of platinum group metals in the electrodes. Spark plugs may be fed into the system in bulk and an automated mechanism under computer control executes a sequence of operations to feed plugs in a fixed orientation and at a controlled rate to a robot arm. The robot arm has a gripper that securely holds a set of spark plugs and passes them across a cutting tool to separate tips from the bodies. The gripper has independently actuated finger assemblies that accommodate plugs of varying shapes. A visual inspection system ensures that spark plugs are oriented with the tips facing in the same direction to simplify operation of the robot and the cutting tool. The tips may be processed to extract the contained valuable metals; the remaining bodies may be recycled as iron scrap.
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