Fiber preparation device

Abstract

The invention discloses a fiber preparation device, relating to the technical field of spinning of non-woven cloth. The device comprises a hopper, a high-temperature threaded rod, a distribution cavity, an air-flow generator, an air-flower heater, air injection holes and a spinneret orifice. The hopper is arranged on one end of the high-temperature threaded rod. The other end of the high-temperature threaded rod is connected with the distribution cavity. The air-flow heater is arranged in the air-flow generator. The spinning hole is arranged in the lower end of the distribution cavity. Additionally, left and right sides of the spinning hole are symmetrically equipped with the two air injection holes. The air-flow generator communicates with the two air injection holes in the lower end of the distribution cavity through two ventilation pipes. The hopper communicates with the spinning hole in the distribution cavity through the high-temperature threaded rod. An alternating airflow generator is arranged in the air-flow generator and comprises a cam rotor, a cam rotary shaft, a connecting rod, a fixing rod, a movable baffle and a power supply device. With the preparation device, drawing-off efficiency is increased and finer ultrafine fibers are prepared. The fiber preparation device is suitable for applications in multiple fields such as medical material, filtering and adsorption material and the like.

Description

technical field [0001] The invention relates to the technical field of nonwoven spinning, in particular to a fiber preparation device. Background technique [0002] There are many uses of microfiber illegally manufactured cloth, mainly including air conditioner filters, masks, purifier filter elements, etc. [0003] Among them, the melt-blown method is a technical method that has been commercialized to prepare ultra-fine fibers. Its related technical documents mainly include US patents (US3959421, US5075068). A stream of high-speed, high-temperature hot air is drawn and thinned into ultra-fine fibers. The spinning process requires molten polymer fluid, high-speed, high-temperature hot air, which consumes a lot of energy, and the diameter of the spun fiber is more than 1 micron. [0004] In the specific process of preparing ultrafine fibers by the melt blown method in the existing ultrafine fiber preparation device, the staff adds granular polymer slices from the hopper A, ...

AI Technical Summary

Problems solved by technology

[0006] The inventors found that the drafting effect of differential pressure resistance on fibers is significantly greater than that of frictional resistance, and the fibers in the traditional melt-blown process obviously failed to effectively utilize the drafting effect of differential pressure resistance, which led to traditional industrial production. It is difficult for meltblown technology to break through the limit of 1 micron, and the application of meltblown ultrafine fiber nonwoven materials depends greatly on the fiber diameter, the finer the fiber diameter, the wider the application range

Images