Multi-needle staggered direct writing electrospinning device and method for making grating lines

Abstract

The invention discloses a multi-needle staggered direct-writing electrostatic spinning device and a method for making grating lines. The device includes an XY-axis moving platform, a lifting device, an electrostatic spinning high-voltage power supply, a plurality of electrostatic spinning direct-writing needle assemblies, The collecting plate, multiple driving devices, and the infusion needles of the adjacent electrospinning direct-writing needle assemblies are misplaced, and the distance between them is more than 150mm in the Y direction. The device and method for making grating lines in this patent use piezoelectric ceramic actuators to control and adjust the spacing and stepping distance of multiple electrospinning direct writing needle components, thereby controlling the spacing of grating lines and greatly improving the manufacturing process. The accuracy of the grating line; and keep the multiple electrospinning direct-writing needle components at an appropriate distance, avoiding the discharge phenomenon between adjacent infusion needles, making the field strength distribution of the electrostatic field of the system more uniform, reducing the deposition offset, Improve silk quality.

Description

technical field [0001] The invention relates to the technical field of electrospinning equipment, in particular to a multi-needle direct writing electrospinning device and a method for making grating lines. Background technique [0002] Research on micro-nano structures has become a key area of ​​scientific exploration in various countries. Micro-nano structures have good electrical, chemical, magnetic, optical, and biocompatibility properties, and have shown great application potential and commercial value in many fields involving machinery, electronics, materials, chemistry, physics, and biology. Breakthroughs have been made in specific research directions, especially with the rapid development and industrial application of micro-nano integrated devices and systems, higher requirements such as rapidity, integration, low cost, and precise controllability have been put forward for the preparation of micro-nano structures. . [0003] The word "electrospinning" comes from "e...

AI Technical Summary

Problems solved by technology

[0006] It is difficult for the direct-writing spinning track accuracy of the above technical solutions to reach several microns or even hundreds of nanometers / tens of nanometers, unless a complex high-precision and high-speed positioning platform is loaded

[0007] In the prior art, the electrospinning near-field direct writing technology in the multi-needle mode often has large electric field interference and fiber deposition deviation. When the distance between the needles is too close, the deposition is caused by the electric field interference of adjacent needles. The offset is large, which seriously affects the quality of near-field direct writing

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