This equipment is used for mixing sand material and curing agent specialized for 3DP equipment, which can be used for mixing curing agent with new sand as well as recycling old sand with new sand after mixing. This equipment can be automatically operated online, with stable operation, simple operation, real-time monitoring of working status, automatic alarm for abnormality, and safe and reliable operation. As an auxiliary equipment of 3DP equipment, it effectively improves the mixing quality and efficiency of raw materials for sand printing equipment.