A kind of sand shooting device of cold core box core shooting machine

Abstract

The invention discloses a sand shooting device of a cold core box core shooting machine. The sand shooting device comprises the cold core box core shooting machine and a die, wherein the cold core box core shooting machine comprises a core shooting machine body, a sand shooting cylinder and a sand shooting outlet part, the sand shooting outlet part is provided with transverse hole in the bottom-end lateral side, the die is provided with a horizontal sand inlet and a vertical hole capable of accommodating the sand shooting outlet part, and the horizontal sand inlet is connected with the bottom-end lateral hole of the sand shooting outlet part. The sand shooting device has the advantages that the casting sand direction during sand shooting is changed from a traditional vertical direction into a horizontal direction, insufficient sand shooting caused by the blocking of the sand shooting outlet part in the vertical direction can be avoided effectively, sand leakage due to the gravity of the casting sand when the sand shooting outlet part is inserted into of taken out of the die can be avoided at the same time, and the sand shoot structure is little in die scouring abrasion and beneficial to die inner frame filling.

Description

technical field [0001] The invention relates to the technical field of casting cold sand molding production, in particular to a sand shooting device of a cold box core shooting machine. Background technique [0002] The horizontal split type cold core machine adopts cold core sand to make core and shape. The feature of the horizontal core shooting machine is that it uses four guide pillars, the mold is opened and closed as a horizontal parting, and the upper and lower molds are installed at the same time, the upper mold is fixedly installed, and the lower mold is opened and closed. The core shooter is widely used in the foundry industry. The sand core or sand mold made by the cold core shooter is accurate in size and smooth in surface. [0003] The working principle of the cold box core shooting machine is to inject the cold core sand into the core box, and then blow the solidification gas into the core box to solidify the sand mold, and then take it out to form a high-qual...

AI Technical Summary

Problems solved by technology

[0004] The sand shooting method on the existing cold core equipment in the market mostly adopts the structure of the top shot circular nozzle, that is, the sand shooting nozzle on the sand shooting cylinder is perpendicular to the horizontal mold, and the sand is directly sprayed on the inner plane of the mold during sand shooting. The surface of the mold is severely scuffed, and the effective area of ​​the sand outlet of the nozzle cannot be made too large to prevent the cold core sand from falling automatically. The number of nozzles should be distributed more, and it is difficult to shoot the mold plane full of sand, resulting in dissatisfaction with the sand. Phenomenon, which increases the difficulty of mold materials and production

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