Melt-blown mold for making cloth by melt-blown method

Abstract

The invention discloses a melt-blowing mold for melt-blowing cloth making, and relates to an extrusion mold. According to the technical scheme, the melt-blowing mold is characterized by comprising a mold body and two airflow adjusting plates, wherein an air channel comprises a diffusion section close to an air spraying outlet, a mixing chamber and a nozzle section; the nozzle section, the mixing chamber and the diffusion section are sequentially communicated in the air flowing direction of the air channel, the end of the nozzle section is positioned in the mixing chamber and right faces the end of the diffusion section, the mixing chamber is further communicated with an air exhaust section, and the air exhaust section is communicated with an air chamber; and a piston is arranged in the airchamber in a sliding mode, air blocking blocks are arranged in the airflow adjusting plates in a sliding mode and driven by the piston to move, and the ends of the air blocking blocks are positionedin the air channel. The melt-blowing mold can automatically adjust the flow speed of the air channel, the influence of the flow speed change in the air channel on the flow speed of the air spraying outlet is relieved to a certain degree, the flow speeds of air sprayed out of two air channels tend to be the same, and the quality of melt-blown cloth is guaranteed.

Description

technical field [0001] The invention relates to an extrusion die, in particular to a melt-blown die for fabric-making by a melt-blown method. Background technique [0002] Meltblown molds are equipment used to produce non-woven fabrics, and are mostly used to produce mask fabrics. The melt-blown mold is to heat the resin to a molten state and then use the nozzle of the nozzle and the traction of the hot air flow to spray the molten resin into the collection device in the form of filaments, and use its own waste heat to bond with each other to form a melt-blown non-woven fabric. Textile Cloth. [0003] The Chinese utility model patent with the existing authorization announcement number CN202610403U discloses a non-woven cloth-making extrusion die produced by a melt-blown method. The extrusion nozzle of molten resin, the nozzle hole on the extrusion nozzle is connected with the conveying cavity on the die main body, the air outlet of the air channel spliced ​​with the templa...

AI Technical Summary

Problems solved by technology

In practical applications, due to the intentional design of the air flow channel into a shape with long length and many bends, and the difference in sealing between the various components, even if the two air channels are supplied by the same air source, the outlet flow rate of the two air channels There will also be unavoidable differences. When the air flow rate of the two air channels is very different, it will affect the quality of the meltblown cloth.

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