Aerator for vertical flaskless molding machine
AssigneeBrunswick Industrial Inc.
InventorsGary W. Calhoun, George Ducis
Life of this patent
Estimating the term…
Abstract
The assembly includes plural independently operated rotating shafts that contact the sand fill. As the fill is introduced into a first end of the vertical chute, the speed and rotational direction of the shafts with accompanying tines are controlled to regulate the feed rate and discharge of the fill to a molding chamber. This arrangement provides a more uniform density in the molding chamber which, in turn, results in improved quality in the cast product.
Claims14
An aerator assembly for a vertical flaskless molding machine, the aerator assembly comprising:
- a chute having an upper, first end adapted to receive filling material therein and a lower, second end spaced therefrom adapted for communication with associated equipment;
- at least first and second rotating shafts spaced from one another in generally the same plane and extending across the chute at a region between the first and second ends, the shafts each including tines extending generally outward therefrom adapted to contact the associated filling material as it proceeds from the first end toward the second end of the chute;
- and
- first and second motors for independently rotating the first and second shafts, respectively.
An aerator assembly interposed between a sand transporting conveyor and an inlet of a vertical flaskless molding machine, the aerator assembly comprising:
- a chute having an inlet adapted to receive sand from the associated conveyor and an outlet adapted for operative communication with the associated molding machine;
- a plurality of shafts disposed in the chute, each shaft including tines extending outwardly for aerating the sand as it passes between the chute inlet and outlet, the tines of adjacent shafts are offset relative to and intermesh with one another and;
- a drive member for rotating the shafts in a controlled fashion to equalize density of the sand within the associated molding machine, the drive member including separate motors for each shaft.
Dependencies are inferred from the claim text.