Cigarette making and tipping machine and drum wheel assembly thereof

The invention discloses a cigarette making and tipping machine and a drum wheel assembly thereof. The drum wheel assembly comprises a servo motor; a rotor of the servo motor is fixedly connected witha driving shaft; a stator of the servo motor is fixedly connected with a gas distribution seat arranged on the periphery of the driving shaft in a sleeving mode; an inner cavity of the gas distribution seat is formed by the inner side wall of the gas distribution seat and the outer side wall of the driving shaft; the gas distribution seat is provided with a negative pressure interface communicating with the inner cavity of the gas distribution seat and used for being connected with a negative pressure device; the periphery of the gas distribution seat is sleeved with a drum wheel fixedly connected with the driving shaft; and the drum wheel is provided with an accommodating groove used for accommodating cigarettes and communicating with the inner cavity of the gas distribution seat. When the drum wheel assembly wor