Adjusting device of conveying passage of cigarette small box packaging machine

The utility model relates to cigarette manufacturing equipment, and in particular to an adjusting device of a conveying passage of a cigarette small box packaging machine. The adjusting device of the conveying passage of the cigarette small box packaging machine consists of two sets of conveying belts, wherein two sets of belt pulley devices are arranged on a bottom plate; each belt pulley device consists of a driving belt pulley, a driven belt pulley and a small belt pulley; the conveying belts are arranged on the driving belt pulley and the driven belt pulley respectively; the small belt pulley is arranged between the driving belt pulley and the driven belt pulley; a movable bottom plate is arranged on one side of the bottom plate; one of the two sets of belt pulley devices is arranged on the movable bottom plate; a transmission box is arranged outside the movable bottom plate and is provided with an adjusting screw; a fixed screw sleeve is arranged outside the movable bottom plate; and the inner end of the