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Spinneret plate and spinneret mechanism

A spinneret and spinneret technology, applied in textiles and papermaking, filament/thread forming, fiber processing, etc., can solve the problem of high cost, achieve the effect of reducing requirements and facilitating installation and disassembly

Inactive Publication Date: 2017-05-24
SHANGHAI UNIV OF ENG SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the ejection pressure depends on the hydraulic pressure generated by the electrospinning liquid supply device, to achieve the pressure level required for spinning, the requirements for the hydraulic pump are very high, so the cost is very high

Method used

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  • Spinneret plate and spinneret mechanism
  • Spinneret plate and spinneret mechanism
  • Spinneret plate and spinneret mechanism

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0032] The first embodiment of the present invention provides a spinneret for use in electrospinning equipment, see figure 1 As shown, including the body, two layers of cavities are formed from top to bottom in the body, namely a gas cavity 1 and a liquid cavity 2. The gas cavity 1 is provided with a gas inlet 1a, and the liquid cavity 2 is provided with a liquid inlet 2a. ;

[0033] The gas cavity 1 and the liquid cavity 2 are connected by a one-way channel 3, and the liquid cavity 2 is in communication with a spinneret hole 2b provided at the bottom of the body;

[0034] The spinning liquid enters the liquid cavity 2 from the liquid inlet 2a, and the gas enters the gas cavity 1 from the gas inlet 1a, passes through the one-way channel 3 and enters the liquid cavity 2, pushing the spinning liquid to be ejected from the spinning hole 2b.

[0035] Among them, the one-way channel 3 can be constituted by setting a one-way valve, or can be constituted by controlling the pressure in the g...

Embodiment approach 2

[0039] The second embodiment of the present invention provides a spinneret. The second embodiment is a further improvement of the first embodiment. The main improvement lies in that, in the second embodiment of the present invention, see figure 2 As shown, an air pressure sensor 4 is provided in the gas cavity 1 and a hydraulic sensor 5 is provided in the liquid cavity 2.

[0040] The air pressure sensor 4 and the hydraulic pressure sensor 5 are provided to monitor the fluid pressure in the gas cavity 1 and the liquid cavity 2 in real time to ensure the orderly progress of the production process.

Embodiment approach 3

[0042] The third embodiment of the present invention provides a spinneret. The third embodiment is different from the first and second embodiments. The main difference is that in the first and second embodiments of the present invention, The one-way passage 3 is constituted by setting a one-way valve; and, in the third embodiment of the present invention, see image 3 As shown, an electronic valve 6 is provided in the one-way channel 3, and the electronic valve 6 is in communication connection with the air pressure sensor 4 and the hydraulic pressure sensor 5.

[0043] The electronic valve 6 opens when it detects that the gas pressure is stronger than the liquid pressure, and closes when it detects that the liquid pressure is stronger than the gas pressure. The automatic control of the electronic valve 6 ensures that the one-way channel 3 is in the passage state only when the gas pressure is stronger than the liquid pressure, which can more effectively prevent the spinneret from b...

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Abstract

The invention relates to the field of spinning equipment and discloses a spinneret plate and a spinneret mechanism. The spinneret plate and the spinneret mechanism are used in electrostatic spinning equipment. The spinneret plate comprises a body, the body is internally provided with two layers of cavities from top to bottom, the cavities include the gas cavity and the liquid cavity, a gas inlet is formed in the gas cavity, and a liquid inlet is formed in the liquid cavity. The gas cavity and the liquid cavity are connected through a one-way channel, and the liquid cavity is communicated with a spinneret hole in the bottom of the body; spinneret liquid enters the liquid cavity from the liquid inlet, and gas enters the gas cavity from the gas inlet, enters the liquid cavity through the one-way channel and pushes the spinneret liquid to be sprayed out from the spinneret hole. The spinneret mechanism provided with the spinneret plate has the advantages of being low in cost and convenient to detach.

Description

Technical field [0001] The invention relates to the field of textile equipment, in particular to a spinneret and a spinneret. Background technique [0002] Electrospinning is a special form of the electrostatic atomization of polymer fluids. Its principle is: under the action of the electrostatic generating device, a high-voltage electrostatic field is formed between the electrospinning device and the electrospinning fiber receiving device, and the polymer solution A droplet is formed at the nozzle and charged. The charged droplet is accelerated at the top of the Taylor cone under the action of the electric field force. When the electric field force is large enough, the charged droplet overcomes surface tension to form a charged jet, and the charged jet runs in the electrostatic spinning space When the solvent evaporates, bends and stretches, it is finally collected by the receiving device to form a randomly arranged electrospun fiber material. [0003] Electrospinning can prepare...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01D5/00
CPCD01D5/0069
Inventor 孟想辛斌杰靳世鑫张瑞章国红
Owner SHANGHAI UNIV OF ENG SCI
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