Acme-cleveland Corporation

Leszek R Drobnik

Edward J Rebish

A molding machine is disclosed which has a parting line of the molds at an acute angle to the horizontal. A continuous molding machine is disclosed wherein particulate matter such as sand and a binder is used to provide a succession of molds with cavities therebetween into which molten metal is poured to make a casting. The sand mold is constructed using a molding chamber and first and second pattern plates carrying patterns which face in opposite directions relative to the molding chamber. The sand is invested and the mold cured or hardened, then the pattern plates are withdrawn along opposing paths which are non-coincident. The completed sand mold is moved from the molding machine into a core setting area whereat cores are moved along the axis of the cavity which is at an acute angle to the horizontal for easy setting of these cores in prints of the mold cavities. Sprue and vent openings may also be drilled in this core setting area. The molds with the cores set therein are moved to a closing station whereat the mold is moved at an acute angle to the horizontal, generally parallel to the axis of the cavity, so that a first cavity is closed upon a second cavity of a previously completed mold. The line of molds is then moved horizontally to a metal pouring area. The foregoing abstract is merely a resume of one general application, is not a complete discussion of all principles of operation or applications, and is not to be construed as a limitation on the scope of the claimed subject matter.

Angled molding machine

A molding machine for use with quick setting and cold setting sticky mold material, a mixture of sand and self-setting adhesive, is provided with a device to clean out the machine during each cycle and after the blow operation is completed. The sand and adhesive is mixed with the catalyst to a condition so that it will set up in a matter of seconds, e.g. ten to sixty seconds, and as it is mixed, a predetermined quantity is immediately deposited in a magazine. The magazine is closed by a valve and air pressure is applied to blow the sticky mold mixture from the magazine through a blow head into a mold cavity wherein it immediately starts to set. A diverter is provided with a diverter passage just outboard of the blow apertures of the mold box and this diverter passage is next enabled and air pressure is again applied through the magazine and blow head to blow any small amount of excess sticky mold mixture out the diverter passage into a receptacle. Air jets directed tangentially and downwardly in the sand magazine help move the entire slug of sticky mold material downwardly out of the magazine to clean the magazine and the enabled diverter passage cleans all of the excess material not used in that cycle. The diverter is disabled, the completed mold is removed from the mold, the mold box closed and the cleaned machine then is ready for the next cycle of operation. The forgoing abstract is merely a resume of one general application, is not a complete discussion of all principles of operation or applications, and is not to be construed as a limitation on the scope of the claimed subject matter.

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Euclid, OH, United States of America

Leszek R Drobnik