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Rotary Separator

IP.com Disclosure Number: IPCOM000108531D
Original Publication Date: 1992-Jun-01
Included in the Prior Art Database: 2005-Mar-22
Document File: 2 page(s) / 65K

Publishing Venue

IBM

Related People

Campbell, BC: AUTHOR [+4]

Abstract

In pinning metallized ceramic substrates, one major consideration is delivering exactly one pin to each and every through hole every time a new part is processed. In currently used methods, pins are fed in tandem into tubes by vibratory feeders. There can be as many as 90 pins in a tube. These pins can engage in pin-to-pin interactions, which can cause the pins to jam in the tubes. These interactions are extremely sensitive to pin end geometry, and can gate the throughput capacity of the overall machine.

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Rotary Separator

       In pinning metallized ceramic substrates, one major
consideration is delivering exactly one pin to each and every through
hole every time a new part is processed.  In currently used methods,
pins are fed in tandem into tubes by vibratory feeders.  There can be
as many as 90 pins in a tube.  These pins can engage in pin-to-pin
interactions, which can cause the pins to jam in the tubes.  These
interactions are extremely sensitive to pin end geometry, and can
gate the throughput capacity of the overall machine.

      In the disclosed method of pin feeding, a properly tuned
vibratory feeder is used to move the pins through feed tracks, shown
in side cross-sectional view as item 3 in the figure.  The pins enter
a trestle area 4 of the feed tracks. The relief 5 and vibrating plate
6 of this trestle area are designed to allow straight pins to pass
and continue in the direction of feed.  Bent pins are destabilized
from the tracks and fall into the reject bin 12.

      Straight pins continue in the tracks until they enter holes in
the rotating shaft 2, which is supported by the main block 1.  Each
track has a corresponding hole, and the total number of holes and
tracks is determined by the number of pins to be fed at one time.

      When all hole positions in the shaft are filled, the shaft is
rotated to align the holes/pins with sensors 9. These sensors detect
which, if any, holes are missing pins. A laser sensor 7
simultaneously d...