Method for molding
AssigneeSintokogio, Ltd.
InventorMasahide NOGUCHI
Life of this patent
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Abstract
A method for molding by which the density of sand of a mold is almost uniform. The method includes a step of forming a molding space by using a flask, using an auxiliary flask that has a lower opening that is connectable to an upper opening of the flask, using a squeeze head that has a squeeze board and has a plurality of squeeze feet that pass through the squeeze board and vertically move, and using a pattern plate, a step of filling the molding sand into the molding space, and a step of squeezing the molding sand by lowering the squeeze head, wherein the squeeze feet that face a concavity of a pattern are lowered at the same time as the step of squeezing starts or during the step of squeezing.
Claims7
A method for molding by using molding sand wherein a flask and a pattern plate are used, the method comprising the steps of:
- forming a molding space by using the flask, using an auxiliary flask that has a lower opening that is connectable to an upper opening of the flask, using a squeeze head that has a squeeze board that can enter and withdraw from the auxiliary flask and has a plurality of squeeze feet that pass through the squeeze board and vertically move in relation to the squeeze board, and using the pattern plate;
- filling the molding sand into the molding space, which molding sand has been stored in a hopper for filling the molding sand;
- and
- squeezing the molding sand by lowering the squeeze head;
- wherein the squeeze feet that face a concavity of a pattern that is formed in the pattern plate are lowered at the same time as the step of squeezing starts or during the step of squeezing.
Dependencies are inferred from the claim text.