Abstract: In order to improve the pulping performance of the soymilk machine, it is usually necessary to concentrate the crushing of the materials through the mesh cover, causing cleaning to become a major pain point for users. In order to improve the user experience of the soymilk maker and realize the automatic cleaning function of the soymilk maker, a minimum three-stage crushing cavity is designed. There are three different slopes at the water climbing part of the soymilk maker cavity to reduce the process energy loss. Through the analysis of fluid mechanics and experimental verification, it is found that the designed three-stage cavity structure makes it more conducive to the recycling of materials when crushing soybeans and improves the crushing performance; it is beneficial to water climbing during cleaning and easier to clean to the cup. Cover, good cleaning effect.

Key words: Soymilk maker, Automatic cleaning, Three-stage, Crush the cavity