The working principle of Baotou Leard wire feeder is as follows: the lifting belt quantitatively feeds the cut tobacco into the vibrating groove or the rotating groove, and the vibrating groove or the rotating groove vibrates, and at the same time feeds the cut tobacco forward into the hopper of the cigarette maker. When the tobacco hopper needs tobacco shreds, the photoelectric signal will be converted into a driving electromagnetic valve, and the valve of the smoking pipe will be opened to suck the vibrating tobacco shreds into the smoking pipe and send them to the tobacco hopper. When the hopper is full, the electrical signal is converted to close the suction valve of the straw, and the primary feeding process is completed. In production, the feeding process has gone through countless times to ensure the operation of the cigarette machine.