Accelerating transmission system used for up-and-down cleaning device of roving machine

The utility model relates to an accelerating transmission system used for up-and-down cleaning device of roving machine. a level-key and a 13T teeth chain wheel are mounted in a keyway on a four-roller head; the 13T teeth chain wheel is connected with a 14T teeth chain wheel by a chain; the 14T teeth chain wheel is mounted on the transmission shaft of an up-and-down cleaning device. In the utility model, the original umbrella shaped gear drive of the up-and-down cleaning device is changed into chain drive; the four rollers drive the transmission shaft of the up-and-down cleaning device directly, the transmission ratio is 1:1, and the speed is increased by one time, and the cleaning effect is improved; the yarn faults are reduced by 50%, an the yarn quality is improved; and the headstock transmission system needs not replacing, and the cleaning efficiency of the up-and-down cleaning device is improved.