Efficient suspended spindle roving frame

An efficient suspended spindle roving frame comprises a support, a strip barrel is arranged on the rear side of the support, a drafting device is arranged at the top of the support, an upper keel is arranged on the front side of the top of the support, a flyer is arranged on the upper keel, a lower keel is arranged below the upper keel, and a winding drum corresponding to the flyer is arranged on the lower keel. An automatic roving cutting-off device is arranged at the end of a yarn outlet wing rod of the flyer, a compression roller set of the automatic cutting-off device can gradually move backwards along with the winding thickness of roving of a winding drum and quickly jump backwards after moving backwards to a certain distance, and after jumping backwards, cutters on the two sides of the compression roller set are closed to cut off the roving in front of the compression roller set. And after the fully wound winding drum is taken down, the compression roller group can automatically push the roving to the f