sand mixer for foundry

Abstract

The invention discloses a sand mixing machine for casting, and relates to the technical field of casting. According to the technical scheme, the sand mixing machine comprises a barrel body and a runner wheel. The interior of the barrel body is coaxially connected with an installation plate. A driving piece is further arranged at the bottom of the barrel body. An installation part is arranged on the upper end face of the installation plate. The runner wheel is correspondingly and rotationally connected to the installation part. A driving assembly is further arranged on the installation part andcomprises a worm rotationally connected with the interior of the installation part, a worm wheel fixedly connected to the runner wheel and a driving motor. An extending plate is fixed to the installation part in the radial direction of the barrel body. A stirring assembly is further arranged in the barrel body and correspondingly connected with the extending plate. The stirring assembly comprisesa main stirring piece and an auxiliary stirring piece. The worm is provided with a transmission assembly capable of driving a main stirring shaft to rotate. By means of rotation of the installation plate, the runner wheel on the installation plate and the stirring assembly can rotate along the axis of the barrel body in the grinding and stirring process, thus, the grinding and stirring range is larger, and therefore, the overall grinding and mixing effect is better.

Description

technical field [0001] The invention relates to the technical field of foundry, more specifically, it relates to a sand mixer for foundry. Background technique [0002] The sand mixer is a device that uniformly mixes the components in the molding sand and effectively coats the binder on the surface of the sand grains. In the foundry field, a sand mixer is a casting equipment used for mixing molding sand or core sand. The old sand, new sand, molding sand binder and auxiliary materials are mixed evenly through the sand mixer. [0003] For example, the Chinese utility model patent whose patent number is CN206335089U discloses a sand mixer capable of improving sand mixing efficiency. The bottom is provided with a rotating drive device that drives the rotating shaft to rotate; the rotating shaft is provided with two rolling wheels; the bottom of the inner cavity of the cylinder is provided with an intermediate grinding roller, and the intermediate grinding roller is located betw...

AI Technical Summary

Problems solved by technology

[0004] When the above-mentioned sand mixer is used to mix the molding sand, although the molding sand can be stirred and rolled, the position of the grinding wheel and the middle grinding roller basically does not move, and the same position is rolled and stirred, resulting in an overall mixing effect that needs to be strengthened. needs improvement

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