Pretreatment device for cosmetic detection

The pretreatment device for cosmetic detection comprises a treatment cylinder, push rod motors are fixedly connected to the middle positions of the two sides of the top of the treatment cylinder, and a liquid taking pipe penetrates through and is fixedly connected to the middle position of the front end of the top of the treatment cylinder; and a liquid inlet pipe penetrates through and is fixedly connected to the middle position of the rear end of the top of the treatment cylinder, and a first servo motor is fixedly connected to the middle position of the top of the treatment cylinder. According to the cosmetic raw material mixing device, through linkage among a first servo motor, a first rotating shaft and a spiral blade, cosmetic raw materials entering the inner cylinder can be fully stirred, components in the raw materials are fully mixed, and through linkage among a second servo motor, a second rotating shaft, the inner cylinder, a limiting supporting plate, a pressing plate, a push rod motor and a push