Sand casting sand mixer

The invention discloses a sand casting sand mixer and relates to sand casting production equipment. The sand mixer comprises a rack, a sand mixing hopper assembly and a sand mixing mechanism. The sandmixing hopper assembly is fixedly mounted on the rack. The sand mixing mechanism is composed of a reduction drive motor, a rotary shaft and a sand grinding stirring paddle assembly. The reduction drive motor is fixedly mounted on the sand mixing hopper assembly through screws and fixedly mounted on the rack through screws. The rotary shaft is fixedly connected with an output shaft of the reduction drive motor. The sand grinding stirring paddle assembly is fixedly connected with the rotary shaft. The sand mixer is simple in structure, moulding sand can be prepared efficiently in a mixed mode,and the moulding sand mixed preparation quality is improved. 本发明公开了种砂型铸造混砂机，涉及砂型铸造生产设备，包括机架、混砂斗组件和混砂机构，所述混砂斗组件固定安装在机架上，所述混砂机构由减速驱动电机、转轴和砂碾搅拌桨组件组成，所述减速驱动电机通过螺丝固定安装在混砂斗组件上，且通过螺丝固定安装在机架上，所述转轴与减速驱动电机的输出轴固定连接，所述砂碾搅拌桨组件与转轴固定连接；该混砂机的