Method and apparatus for automatic loading and unloading of prin

Details Method and apparatus for automatic loading and unloading of prin Method and apparatus for automatic loading and unloading of prin

1995-12-01

1998-12-15

Nguyen, Tuan N.

Classifying, separating, and assorting solids

Sorting special items, and certain methods and apparatus for...

Condition responsive means controls separating means

209573, 209905, 1983462, 3241581, B07C 5344

Patent

active

058487050

ABSTRACT:
A method is described for automatic loading and unloading of printed circuit boards on machines for electrical testing, consisting of feeding the circuits to be tested into a pick-up area (16), detecting the position of the single circuits and comparing the position detected with a correct reference position, transferring the circuits from the pick-up area (16) to a loading area (4) on the test machine, taking into account during transfer any deviation of the actual position of the circuit board from the reference position, so that the circuit is always picked up in the same way, to be set down in the pre-established region of the loading area (4), and unloading the tested circuits from the area (4) of the machine onto a discharge line (7) for good circuits and a magazine (17) for faulty circuits, depending upon the test result.

REFERENCES:
patent: 4208675 (1980-06-01), Bajon et al.
patent: 4212031 (1980-07-01), Schmitt et al.
patent: 4305097 (1981-12-01), Doemens et al.
patent: 4593820 (1986-06-01), Antonie et al.
patent: 4682695 (1987-07-01), Hasenbalg
patent: 4867297 (1989-09-01), Saitoh et al.
patent: 5150797 (1992-09-01), Shibata
patent: 5299693 (1994-04-01), Ubaldi et al.

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