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(11) | EP 0 106 435 A3 |
| (12) | EUROPEAN PATENT APPLICATION |
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| (54) | Air transfer system for a shell press |
| (57) @ An air transfer system for a shell press is provided which air conveys a blanked
and formed shell (66) from a blanking and forming die station (14) in the shell press
to a curling die station (16) in the same shell press. The air transfer system further
provides for the blanked and formed part to be air conveyed within the curling die,
and after the shell is curled within the die, provides for the curled shell to be
air ejected from the curling die for subsequent fluid conveyance therefrom. A guide
track (70) extending between the die stations is just slightly wider than the diameter
of the shell being conveyed and the fluid conveyance is provided by a hollow tube
(72) disposed in the upwardly facing surface of the guide track. The hollow tube has
a diameter much smaller than the width of the guide track and shell diameter and further
has a plurality of shaped openings (74) which provide perpendicular and parallel air
velocity components relative to the guide track when high pressure air is provided
through the hollow tube. The curling station includes an air escapement mechanism
for conveying the part through it. |