Conveyors: power-driven – Conveyor system for arranging or rearranging stream of items – By laterally or vertically moving successive items in...
Patent
1976-10-22
1978-10-10
Smith, Al Lawrence
Conveyors: power-driven
Conveyor system for arranging or rearranging stream of items
By laterally or vertically moving successive items in...
198432, 198486, 214 1BV, 214 1Q, 214152, B65G 4724, B65G 4730, B65G 4791
Patent
active
041192117
ABSTRACT:
Small articles, such as miniature ceramics having integrated circuits bonded thereon, are adjacently positioned with an initial row orientation in parallel first rows in guide tracks having a first row spacing. The first articles in each track are lifted from the tracks by a transfer arm, having rotatable vacuum pickups, along a line angular to the tracks such that the articles have a predetermined second row spacing measured along the transfer arm. The lifted articles are transferred to second rows of vacuum supports therefor by pivoting movement of the arm. The supports have pedestals in columns transverse to the second rows which are indexed into position for repeated transfer of articles thereto to form an array (or matrix) of articles having the second spacing between the second rows of the articles on the supports. A link mechanism is provided to rotate the vacuum pickups and re-establish the initial row orientation of the articles with respect to the second rows. The articles are bonded to lead frames in the inverted position. Accordingly, means are provided for inverting and accurately locating the array of articles with respect to the lead frames.
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Boyer John A.
Cross Robert
Kovacs Ernest
Valentino Ralph J.
Peters R. Y.
Ramsey K. J.
Smith Al Lawrence
Western Electric Company Inc.
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