Machine for spinning nano-fiber for production of non-woven cloth

Abstract

This invention discloses a nonwovens spinning machine of nanometer fibre, which mainly includes the high pressure power set, the liquid tank of spinning fluid, receiving device, and at least one group of spinning components. Said liquid tank of spinning fluid is connected with spinning pipe of spinning components by pumps, wherein receiving device including a cylinder vertically disposited on movement devices and metal receiving netting disposited on the cylinder excircle in circle, the movement device having rolling degree of freedom that revolution axis is paralleled with z axis and translation degree of freedom; each group of spinning components including spinning component shelf and at least two spinning pipes fixed on the shelf, the pipe having electric electrode in it, the distance between the spout of the pipe and metal receiving netting is 5-25 centimeters; mounting an isolated electrode between adjacent spinning pipes. The invention comprises the following merits: assuring uniformity of product obtained, avoiding the disturbance of electric field of adjacent spinning pipes, preventing unsteadiness in spinning and inhomogeneity of fibre dispersion.

Description

technical field [0001] The invention relates to a device for producing non-woven fabrics by using an electrospinning method, in particular to a spinning machine for forming non-woven fabrics with nanofibers; Or composite spinning of two or more polymer solutions. Background technique [0002] Electrospinning is a new spinning technology for spinning nanoscale fibers with diameters ranging from tens to hundreds of nanometers. The method of electrospinning can be used to prepare non-woven fabric-like products composed of nano-scale fibers. Because the fiber has a large specific surface area and a very high surface area to volume ratio, the ability in surface adsorption, absorption and filtration protection will be greatly increased. Products developed by this new processing method will have good application prospects in biomedical materials and functional protective materials. [0003] Electrospinning is a process in which the spinning solution is w...

AI Technical Summary

Problems solved by technology

However, the droplets with different polarities of static electricity produced by adjacent nozzle assemblies will attract each other, change the distribution of the electric field, and then affect the stability of the spinning process; at the same time, the movement of the nozzle assemblies will also cause spinning process unstable

[0005] Therefore, in the process of electrospinning, with the change of parameters such as the voltage and the distance between the spinneret on the spinning tube and the receiving screen, a certain electric field distribution will be formed, and the electric fields of each spinneret will obviously be different. A certain interaction is formed, which affects the stability of the spinning process. Therefore, when using multi-nozzle spinning, it is necessary to find a way to properly isolate the electric field formed by each nozzle.

At the same time, during the spinning process, the flow rate of the air and the tiny vibration of the spinning assembly will affect the spinning process, resulting in instability of the spinning process. Therefore, it is necessary to ensure the stillness of the spinning assembly and the flow rate of the spinning solution the stability of

[0006] On the other hand, the practice of single-nozzle spinning has proved that the nanofiber nonwoven fabric obtained by electrospinning has thickness inhomogeneity. Since the electric field intensity has a certain distribution with the electrode as the origin, it is generally thick in the middle and thick on the sides. Thin, which seriously affects the use of the product

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