Apparatus for cleaning sand cores

Details Apparatus for cleaning sand cores Apparatus for cleaning sand cores

1978-04-20

1979-11-20

Smith, Gary L.

Abrasive tool making process, material, or composition

With carbohydrate or reaction product thereof

51418, 51436, 51317, 51424, B24B 3100

Patent

active

041745914

ABSTRACT:
Apparatus for removing fins or flash from foundry sand cores, including a conveyor transporting the sand cores, means mounted above the conveyor for delivering a falling curtain of core cleaning material, such as metal shot or metal grit particles, from a reservoir onto the cores for removing the fins, means for separating the core cleaning material from loosened sand, and means for loading the reservoir with separated core cleaning material so the shot or grit can be reused. A single vacuum source and interconnecting conduits provide means for: (1) separating the shot/grit core cleaning material from loosened sand; (2) loading the reservoir with the separated shot/grit; and (3) transferring the separated loosened sand for use as needed.

REFERENCES:
patent: 1867856 (1932-07-01), McCrery
patent: 1916633 (1933-07-01), Mulvany
patent: 2332251 (1943-10-01), Parrish
patent: 2419933 (1947-05-01), Hutchins
patent: 3434241 (1969-03-01), Greenberg
patent: 3694964 (1972-10-01), Bowling
patent: 3921336 (1975-11-01), Nishio
patent: 3934373 (1976-01-01), Leliaert

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