US 2007/0175607 A1Published application

Method and apparatus for molding an upper and a lower mold having no flask

AssigneeSintokogio, Ltd.

InventorsMinoru Hirata, Takayuki Komiyama

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Abstract

These inventions intend to provide an improved method and apparatus for molding molds having no flask. A match plate is put between an upper and a lower flask having intakes for foundry sand. An upper and a lower molding space are defined by inserting an upper and a lower squeeze means into openings of a pair of the upper and the lower flask having no match plate, and a pair of the upper and the lower flask and the match plate are rotated and moved so that they become perpendicular, and are moved so that the intakes of the flasks move upward. The upper and the lower molding space are filled with the foundry sand. The foundry sand in the molding space is squeezed by a squeezing means. A pair of the flasks and the match plate are rotated so that they become horizontal. Then the match plate is removed. If necessary, the core is installed between the molds, the flasks are matched to each other, and the molds are removed from the pair of flasks.

Claims15

Dependent claims

A method for molding an upper and a lower mold having no flask and that match each other, comprising:

(1) a putting and holding process to put a match plate in between an upper and a lower flask having intakes for foundry sand and being horizontal and to hold the match plate,
(2) a defining process to define an upper and a lower molding space by inserting an upper and a lower squeeze means into openings of a pair of the upper and the lower flask having no match plate,
(3) a rotating and moving process to rotate the pair of the upper and the lower flask and the match plate so that they are perpendicularly positioned, and to move them so that the intakes of the upper and the lower flask move upward,
(4) a filling process to fill the upper and the lower molding space with the foundry sand through the intakes of the upper and the lower flask,
(5) a squeezing process to squeeze the foundry sand of the upper and the lower molding space by causing the upper and the lower squeeze means to further approach each other,
(6) a rotating process to rotate the pair of the upper and the lower flask and the match plate so that they are horizontally positioned, and
(7) a removing process to remove the match plate disposed between the upper and the lower flask after separating the upper and the lower flask containing a mold from the match plate,
(8) a matching process to match the upper and the lower flask containing the mold, after the core is installed between the upper and the lower mold, if necessary, and
(9) a removing process to remove the molds from a pair of the upper and the lower flask that are caused to match each other.

6 more elements

Dependencies are inferred from the claim text.