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Electrostatic spinning spray nozzle capable of achieving quick multi-needle-tip positioning

An electrospinning, multi-needle tip technology, applied in the field of electrospinning, can solve the problems of cumbersome installation and disassembly, difficult to quickly locate the needle tip, complex nozzle structure, etc. The effect of falling off and weakening the electric field interference suppression effect

Active Publication Date: 2019-01-25
厦门定慧力教育科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the structure of the external field-constrained multi-tip electrospinning nozzle currently used is complex, it is difficult to quickly locate the needle tip, and the installation and disassembly are cumbersome, which limits its application in industrialization

Method used

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  • Electrostatic spinning spray nozzle capable of achieving quick multi-needle-tip positioning
  • Electrostatic spinning spray nozzle capable of achieving quick multi-needle-tip positioning
  • Electrostatic spinning spray nozzle capable of achieving quick multi-needle-tip positioning

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Embodiment Construction

[0026] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0027] like figure 1 Shown is a specific embodiment of the present invention, which is provided with an upper cover plate 1, a needle mounting plate 2, an outer locking screw 3, a conductive plate 4, an inner locking screw 5, a needle array 6, a sealing ring 7 and a gas shield 8, Among them, the gas cover 8 is composed of a first gas cover module 9 and a second gas cover module 10, and the first gas cover module 9 and the second gas cover module 10 are quickly installed through the interference fit of the L-shaped groove and the L-shaped boss . The conductive plate 4 is composed of a first electrode plate 11 and a second electrode plate 12, and the first electrode plate 11 and the second electrode plate 12 are quickly installed through the interference fit between the groove and the boss. The upper cover 1 and the needle mounting plate 2 are ...

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PUM

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Abstract

The invention relates to an electrostatic spinning spray nozzle capable of achieving quick multi-needle-tip positioning and relates to electrostatic spinning. The spray nozzle comprises an upper coverplate, a needle tip mounting plate, an electric conduction plate, a needle tip array and an air cover; the upper cover plate is provided with a liquid inlet and connected with a liquid supply devicethrough a hose; the needle tip mounting plate is of a step structure, the step height difference is identical to the height difference of needle tips at the corresponding positions, and the needle tipmounting plate is provided with a needle tip positioning hole; the electric conduction plate is connected with a positive electrode of a high-voltage supply source and is of a separated structure; the needle tip array is provided with the needle tips distributed in an arc array, the needle tip at the middle position of the needle tip array is located at the lowest point, and the needle tips of the two sides of the needle tip array are symmetrically distributed; the air cover is provided with two air inlets and connected with an air supply device through an air guide pipe, and a pressure adjustment valve is used for controlling flow of air and magnitude of pressure intensity. Sheath air constraint is introduced, spinning jet injection is accelerated, the fiber spraying efficiency is improved, the jet flow is thinned, the diameter of a nano fiber is reduced, and the film formation uniformity and quality of an electrostatic spinning fiber are improved.

Description

technical field [0001] The invention relates to electrospinning, in particular to an electrospinning nozzle capable of rapidly positioning multiple needle points. Background technique [0002] As a micro-nanofiber manufacturing technology, electrospinning has attracted widespread attention from scholars and even the industry due to its advantages of simple equipment, controllable operation, wide range of raw materials, and low cost. The efficiency of traditional single-nozzle electrospinning is very low, only about 0.1g / h, which limits the increase in the output of electrospun nanofibers. Realizing the rapid and batch deposition preparation of nanofiber membranes with uniform diameter and high porosity is the focus of its application research, and it is also an important prerequisite for the industrialization of electrospinning technology. Exploring the high-density multi-jet jet control strategy has become the key to batch electrospinning. Multi-needle batch electrospinni...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01D5/00D01D13/02
CPCD01D5/0069D01D13/02
Inventor 郑高峰姜佳昕庄明凤郑建毅柳娟刘益芳
Owner 厦门定慧力教育科技有限公司
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