Guide wire horn nozzle of filter stick forming machine

The invention relates to a guide wire horn nozzle of a filter stick forming machine. The guide wire horn nozzle is in a horn tube shape, inwards projected convex edges are arranged on the inner wall of the horn nozzle, inclined contact surfaces are processed on the front ends of the convex edges, air inlet holes are arranged on the side wall of one end of the horn nozzle near a wire outlet, an outer sleeve is fixedly arranged outside the air inlet holes, air grooves are formed between the outer sleeve and the side wall of the horn nozzle, air inlets are fixedly arranged on the outer sleeve, a heating seat is also arranged on the side surface of the outer sleeve, and a heating wire is arranged in the heating seat. When the technical scheme is adopted, under the effects of three techniques of the convex edges, the heater and the air inlet holes, wire bundles inside the filter nozzle sticks are extruded and formed out of the grooves, a wire bundle dense region and a wire bundle loose region are formed, when filt