Guide wire horn nozzle of filter stick forming machine

Abstract

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 filter tip sticks are assembled onto cigarettes to be used, air permeating from connecting and mounting paper and forming paper can easily enter the deep part of the filter tip sticks along the wire bundle loose region, the air intake quantity is increased, and in addition, the mixing uniformity of the air and the smoke gas can also be increased. Therefore, the tar content in the smoke gas can also be reduced.

Description

technical field [0001] The invention belongs to the technical field of parts and components of processing equipment for cigarette filter rods, and relates to a guide wire trumpet used on a filter rod forming machine. Background technique [0002] In the prior art, the guide wire horn of the filter rod forming machine is trumpet-shaped, the opening of the wire inlet end is relatively large, and the opening of the wire outlet end is small, and the diameter of the wire outlet is the same as that of the filter rod product produced. Consistent diameter. When working, the loose tow is sprayed with curing agent before entering the horn nozzle, and under the action of tension, it enters from the front end with a larger opening of the horn nozzle, and is shaped into a cylinder when it is pulled out from the wire outlet with a smaller opening. Shaped long filter rods, the long filter rods are wrapped with forming paper and cut into filter rods. After the filter rod is cut again on t...

AI Technical Summary

Problems solved by technology

[0004] Because the interior of the guide wire horn of the filter rod forming machine in the prior art is designed as a circular cavity, the tow is cylindrical with uniform density after being shaped by the horn, and the suction resistance inside the tow is relatively uniform. At the same time, when the air penetrates into the inside of the filter rod through the tipping paper and molding paper, due to the influence of suction resistance, the air intake volume is small, and it only enters the outer layer of the tow, which affects the intake of air in the filter rod. The gas volume and the uniformity of mixing with the flue gas affect the further reduction of the tar content in the flue gas

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