Foundry sand blowing apparatus

Details Foundry sand blowing apparatus Foundry sand blowing apparatus

1987-06-25

1988-05-17

Lin, Kuang Y.

Metal founding

Means to shape a forming surface

Including means for compacting particulate fluent mold...

164200, 164186, 164401, B22C 1524

Patent

active

047444045

ABSTRACT:
A foundry sand blowing apparatus for blowing foundry sand into a mold in forming a die such as a core for use in shell mold process or the like comprises a foundry sand storage tank provided with an eject pin. The eject pin is movable between an ejecting position in which it projects outside the storage tank through a sand discharge port provided in the tank to be aligned with the sand blowing port of the mold and a retracted position in which it is retracted from the sand blowing port into the tank. The tank is further provided with an eject pin driving mechanism for moving the eject pin to the ejecting position to eject the product away from the mold and to the retracted position.

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