Sand shooting device for making slender sand cores by hand

Abstract

The invention discloses a sand shooting device for manually manufacturing a long and thin sand core, and the device provided by the invention comprises a core box (3), a sand shooting cylinder (1) and an air conveying device, wherein the interior of the core box (3) is provided with a long and thin sand core cavity (35); the sand shooting cylinder (1) is filled with core sand; the air conveying device is communicated with an air source; the bottom of the sand shooting cylinder (1) is connected to the core box (3); the sand shooting cylinder (1) is communicated with the long and thin sand corecavity (35) of the core box (3); and the air conveying device is connected to the upper part of the sand shooting cylinder (1). With such a structure, the sand shooting device has the advantages that after two monomers composed of the core box are fastened, the core sand is shot into the cavity under the action of air pressure in the sand shooting cylinder, thereby avoiding the phenomenon of insufficient sand filling caused by manual sand-filling operation and achieving the manufactured sand core higher in compactness and strength.

Description

[0001] technical field [0002] The invention relates to the field of casting technology, in particular to a sand shooting device for hand-made slender sand cores, which relates to sand filling technology in the production process of slender sand cores. Background technique [0003] In the process of foundry production, slender sand cores usually refer to sand cores with a diameter of less than 20mm and a length of more than 500mm. The production of such sand cores is a difficult problem in foundry production. It is very difficult to fill sand. Sand shooting will not be in place, that is, sand shooting is not solid, so it is especially difficult to fill sand when making slender sand cores by hand. Contents of the invention [0004] The technical problem to be solved by the present invention is to provide a sand shooting device for handmade slender sand cores which can improve the compactness of the sand cores during sand filling of slender sand cores. [0005] In order to...

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Problems solved by technology

[0003] In the process of foundry production, slender sand cores usually refer to sand cores with a diameter of less than 20mm and a length of more than 500mm. The production of such sand cores is a difficult problem in foundry production, and its sand filling is very difficult. It will cause the phenomenon that the sand shooting is not in place, that is, the sand shooting is not solid. Therefore, it is especially difficult to fill sand when making slender sand cores by hand.

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