Rotary light tester for continuously inspecting empty cans

Details Rotary light tester for continuously inspecting empty cans Rotary light tester for continuously inspecting empty cans

G - Physics

01

N

340/124.6

G01N 21/90 (2006.01) G01N 21/954 (2006.01)

Patent

CA 1178689

A B S T R A C T O F T H E D I S C L O S U R E A rotary light tester for continuously inspecting empty cans discriminates between good cans and defective ones by judging the amount of transit light into the interior of the empty cans. The light seal circular plate and the freely- reciprocative slide pusher which rotates with the continuous rotating star wheel are faced each other sandwiching each can receiving seat on the outer periphery of the star wheel at equal intervals in the circumferencial direction. The nozzle opening of the tip of the slide pusher absorbs vacuously the bottom end of uncoated or unprinted bright can received in the can receiving seat one by one when the can enters into the empty can supply station just after the trimming. Then, in the light detection station, the opening end of the can is inserted into the groove of the light seal circular plate having the black non-luster surface to further the reflection attenuation of outer entry light, the trap in the deepest portion thereof, and the conical introduction to make it easy to insert the opening end therein by advance pushing of the slide pusher.

374522

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