Device for the simultaneous positioning of a plurality of electr

Details Device for the simultaneous positioning of a plurality of electr Device for the simultaneous positioning of a plurality of electr

1981-10-13

1984-06-05

Paperner, Leslie J.

Material or article handling

Vehicle-carried bale accumulator

29740, 271 9, 271 30R, 271108, 294 64R, B65G 5904

Patent

active

044525575

ABSTRACT:
A device for the simultaneous positioning of a plurality of electrical and/or electronic parts on a printed circuit board, comprising a transport holder with a number of vacuum openings and a grid which is arranged therebelow and which comprises a matrix of openings in which there are accommodated a number of magazines containing stacks of said parts, the device comprising means for advancing the stacks of parts until the uppermost part of each stack is in a position in which it can be lifted by vacuum in order to be transported to the printed circuit board. The transport holder is constructed as a flat box which can be connected to a vacuum pump and which has substantially the same circumferential dimensions as the grid. The upper side and the lower side of said box are provided with a hole pattern which corresponds to the matrix of openings in the grid. In each pair of associated holes a hollow vacuum pin is arranged in a sealing and slidable manner. The upper end of each vacuum pin is sealed. In the sidewall of each vacuum pin there is provided an opening, each pin being slidable in both its guides to an active and an inactive position in which said opening is situated inside and outside the vacuum box, respectively.

REFERENCES:
patent: 3523707 (1970-08-01), Roth
patent: 3888725 (1975-06-01), French
patent: 4375126 (1983-03-01), Dull et al.

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