Uniform negative-pressure drum type web former of melt-blowing equipment and melt-blown fabric production process

Abstract

The invention relates to the technical field of melt-blown fabric production, and aims at providing a uniform negative-pressure drum type web former of melt-blowing equipment and a melt-blown fabric production process. According to the technical scheme, the uniform negative-pressure drum type web former comprises a rack, a receiving drum arranged on the rack, and a winding mechanism located at theend, in the discharging direction, of the rack; the rack is provided with a first driving motor and a second driving motor, the first driving motor is used for driving the receiving drum to run, andthe second driving motor is used for driving the winding mechanism to run; the receiving drum comprises an inner barrel, and a filtering screen arranged on the outer layer of the inner barrel; a plurality of vent holes are evenly distributed in the barrel wall of the inner barrel, a negative-pressure flow guide barrel is arranged in the inner barrel in the axial direction, and the negative-pressure flow guide barrel communicates with a negative-pressure source; a pair of spreading roll sets parallel to the receiving drum is rotationally arranged below the receiving drum; and the traceless melt-blown fabric production process comprises the steps of raw material feeding, melt metering, die head spinning, yarn splitting and web paying, spreading and shaping and drafting and winding. The uniform negative-pressure drum type web former of melt-blowing equipment and the melt-blown fabric production process have the advantages of being uniform in melt-blowing web forming and homogeneous and traceless in fabric.

Description

technical field [0001] The invention relates to the technical field of melt-blown cloth production and manufacturing, in particular to a melt-blown equipment uniform negative pressure drum-type web forming machine and a melt-blown cloth production process. Background technique [0002] The manufacture of nonwovens by melt blowing is a general and cost-effective method of directly producing nonwovens with microfiber structures from polymers. The nonwovens produced by this method have excellent filterability, shielding properties, Thermal insulation and oil absorption, so it is widely used in the manufacture of medical and industrial masks, thermal insulation materials, filter materials, oil absorption materials and sound insulation materials and other fields. [0003] The Chinese patent with the authorized announcement number CN203754951U discloses a web forming device of a non-woven fabric melt-blown web forming machine, including a receiving drum, a winding roller, an upper...

AI Technical Summary

Problems solved by technology

[0004] Although the existing technical scheme can improve the adaptability of the coiling tension of the coiling roller through the floating pressurization coiling mechanism, and reduce the phenomenon of wrinkling and unevenness of the cloth coiling caused by tension changes, in actual production, from the melt blown die head When the ejected microfibers are sprayed onto the surface of the receiving drum and spread and formed, there will be uneven formation. When the unevenly formed fabric is directly taken up by the take-up roller, it will cause fabric wrinkles and creases.

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