Special-shaped cigarette confluence pre-sorting device and method

The invention discloses a special-shaped cigarette confluence pre-sorting device and method. The device comprises a special-shaped cigarette conveying line and a thin cigarette conveying line which are arranged in an up-down structure, a combined single swing arm belt conveyor is arranged at one end of the special-shaped cigarette conveying line in the running direction, and the input end of the combined single swing arm belt conveyor is selectively attached to the end face of the special-shaped cigarette conveying line or the end face of the thin cigarette conveying line; a limiting assemblyused for limiting special-shaped cigarettes on the special-shaped cigarette conveying line is arranged on the special-shaped cigarette conveying line, and the limiting assembly and the thin cigaretteconveying line are of an interlocking structure. The device has the main beneficial effects that collinear sorting of thin cigarettes and special-shaped cigarettes in a limited field is achieved, theautomation degree is high,