Multi-bin cotton blending machine

The utility model relates to the technical field of cotton spinning, in particular to a multi-bin cotton blending machine which comprises a cotton blending machine body, a plurality of cavity removing mechanisms, a mounting box, a mounting plate and a motor. A plurality of cotton bin mounting plates are arranged in the cotton blending machine body and are detachably mounted at the mounting ports; one end of each cavity removing mechanism is mounted on the mounting plate, and the other end of each cavity removing mechanism extends into the corresponding cotton bin; the mounting box is mounted on the mounting plate, and a transmission assembly used for being in transmission connection with the multiple cavity removing mechanisms is arranged in the mounting box. The motor is installed on the installation box, and an output shaft of the motor is connected with one cavity removing mechanism. A user observes the operation conditions of the cavity removing mechanisms in the multiple cotton bins through the observati