Filter stick tow shaping device

The utility model relates to a filter stick tow shaping device, and belongs to the technical field of cigarette processing equipment. The device mainly comprises a rack, a mounting block, a tow rotating device, a servo motor and a tow shrinking device, the mounting block is fixedly mounted on the rack, the tow rotating device is mounted on the mounting block through a bearing, the servo motor is fixedly mounted on the rack, the rack and the tow rotating device are driven through a belt, and the tow shrinking device is mounted on the rack; according to the utility model, parallel tows can be twisted into a spiral state, so that the tows are processed into the spiral state by a rear heating, softening and forming device, a channel of smoke between the tows can be changed, a straight channel is changed into a spiral channel, and the smoke is promoted to cross the channel formed by the tows by the smoke suction force during smoke suction, so that the filtering capacity of the filter stick is improved; and the req