Automatic screw and washer assembly machine

Details Automatic screw and washer assembly machine Automatic screw and washer assembly machine

1990-01-08

1992-06-09

Larson, Lowell A.

Metal working

Means to assemble or disassemble

Means to interrelatedly feed plural work parts from plural...

460 4, 460 46, B23P 2100, B23P 1908

Patent

active

051195488

ABSTRACT:
An automatic manufacturing machine puts a washer on a bolt which thereby forms a sub-assembly that can be used to further manufacture other things, for example. A vibrating bowl orients the washers so that one side of the washer is up and the other side is down relative to said bolt. These oriented washers are then delivered to a washer transporting dial having a plurality of equispaced pockets around the periphery thereof. Each pocket receives and carries one of the oriented washers to eventually receive the bolt. A sensor detects whether the washer is correctly positioned in the pocket and stops the vibrating bowl until an improperly washer is correctly positioned in a pocket. Jets of air are directed onto the surface of the dial to dislodge incorrectly positioned washers. This invention is important when the opposite sides of the washer are different, as when it is conical, covered on one side by rubber, plastic, or the like. Since the prior art delivered washers in a random manner, on the average, the wrong side of such a washer would be up half of the time.

REFERENCES:
patent: 2273782 (1942-02-01), Irwin
patent: 3622039 (1971-11-01), Lindstrom
patent: 3750206 (1973-08-01), Pomernacki
patent: 4058866 (1977-11-01), Foster
patent: 4453308 (1984-06-01), Jackson

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