Sand core cleaning apparatus with double roller delivery of clea

Details Sand core cleaning apparatus with double roller delivery of clea Sand core cleaning apparatus with double roller delivery of clea

1978-04-20

1979-07-10

Smith, Gary L.

Abrasive tool making process, material, or composition

With carbohydrate or reaction product thereof

51418, 51425, 51436, B24B 3100, B24C 310

Patent

active

041606507

ABSTRACT:
A core cleaning material delivery unit for use in removing fins from foundry sand cores, including counter-rotating rollers rotatably engaging and defining a contact surface junction, means for feeding core cleaning material, such as metal shot or metal grit, above the junction, and means for rotating the rollers in opposite rotational directions away from the top of the contact surface junction to transport the shot or grit upwardly over each roller and deposit it as a double curtain of falling core cleaning material onto the sand cores. A core cleaning system utilizing the aforementioned core cleaning material delivery unit mounted to a frame and vertically adjustable with respect to a core conveyor to adjust the height of the falling curtains of core cleaning material onto the sand cores, and separator and loading means for separating the core cleaning material from loosened sand resulting from removal of the fins and for directing the core cleaning material to the contact surface junction at the top of the rollers.

REFERENCES:
patent: 977453 (1910-12-01), Jorn
patent: 1867856 (1932-07-01), McCrery
patent: 2332251 (1943-10-01), Parrish
patent: 2925689 (1960-02-01), Peterson
patent: 3694964 (1972-10-01), Bowling
patent: 3824739 (1974-07-01), Moret
patent: 3921336 (1975-11-01), Nishio
patent: 3934373 (1976-01-01), Leliaert

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