Melt-blown nozzle for melt-blown fabric production device

Abstract

The invention discloses a melt-blown nozzle for a melt-blown fabric production device, and relates to the technical field of melt-blown fabric production. The melt-blown nozzle comprises a first nozzle piece, a flow guide pipe and a heating mechanism, wherein a second nozzle piece is arranged above the first nozzle piece, a third nozzle piece is arranged above the second nozzle piece, a material groove is formed in the first nozzle piece, a discharging port is formed in one side, close to the second nozzle piece, of the material groove, a sealing gasket is fixed on the inner side of the discharging port, a first heating block is fixed on the outer side of the discharging port, the flow guide pipe is fixed inside the second nozzle piece, an air flow distribution mechanism is arranged outside the flow guide pipe, a heat preservation layer is fixed on the outer wall of the flow guide pipe, and a nozzle is formed in one side, close to the third nozzle piece, of the flow guide pipe. The melt-blown nozzle has the beneficial effects that the heat preservation layer is arranged on the outer wall of the flow guide pipe, so that the heat preservation of the flow guide pipe is facilitated, the heat loss at the flow guide pipe is reduced, and the solidification of polymer melt is prevented.

Description

technical field [0001] The invention relates to the technical field of melt-blown cloth production, in particular to a melt-blown nozzle for a melt-blown cloth production device. Background technique [0002] Melt blown cloth is a filter material with polypropylene as the main raw material. The melt-blown method is also one of the polymer direct-forming methods, which is to extrude the high-polymer melt extruded by the screw extruder by blowing the high-speed high-temperature air flow or other means to make the melt stream extremely stretched And form very fine fibers, and then gather on the web-forming drum or web-forming curtain to form a fiber web, and finally strengthen it by self-bonding to make a melt-blown fiber nonwoven fabric. Meltblown nozzles are needed in the production process of meltblown cloth production equipment. [0003] During the assembly process of the existing melt-blown cloth production device, the connection between the nozzle and the discharge port...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a melt-blown spray head for a melt-blown cloth production device, to solve the problems in the assembly process of the existing melt-blown cloth production device proposed in the above-mentioned background technology. The sealing of the outlet position of the outlet is insufficient, and the polymer melt is prone to leaking, and the heat preservation effect is not good during the melt-blowing process, and the melt-blown nozzle does not have a good heating structure.

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