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Ring spray electrostatic spinning machine and its application

An electrospinning and ring jet technology, applied in yarn, textile and papermaking, filament/thread forming, etc., can solve the problems of difficult real-time adjustment, incompetence for diversified production, inconvenient replacement of machine heads, etc. Mass production, ensure normal spinning, simple structure effect

Inactive Publication Date: 2019-04-05
SHANGHAI UNIV OF ENG SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because different polymers need to use different nozzles, the existing multi-nozzle electrospinning equipment is inconvenient to replace the nozzles, and it is also difficult to adjust in real time during mass production, which cannot meet the needs of diversified production

Method used

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  • Ring spray electrostatic spinning machine and its application
  • Ring spray electrostatic spinning machine and its application
  • Ring spray electrostatic spinning machine and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] figure 1 It is a schematic structural diagram of a ring jet electrostatic spinning machine in an embodiment of the present invention.

[0032] Such as figure 1 As shown, a ring jet electrostatic spinning machine 1000 includes a high-voltage direct current power supply 100, m spinning devices 200, a spinning receiver 300, a stripping device 400, and a traction and twisting device 500. Among them, m is a natural number greater than or equal to 1, and two spinnerets 200 are used in this embodiment.

[0033] The high-voltage direct current power supply 100 is a high-voltage electrostatic generator with a positive electrode and a negative electrode for generating a high-voltage electrostatic field.

[0034] figure 2 It is a schematic diagram of the three-dimensional structure of the spinning device in the embodiment of the present invention;

[0035] Such as figure 2 As shown, the spinning device 200 is used to spin the spinning solution into fibers, and includes a fixed support (...

Embodiment 2

[0062] The second embodiment is a further improvement of the first embodiment. For the same structure as in the first embodiment, the same symbols are given, and the same description is omitted.

[0063] Such as image 3 As shown, the spinneret 212 moves up and down along the spinneret 211 to make the spinneret hole 212a and the liquid outlet hole 211a relatively close or stagger. The specific structure is: both the left and right sides of the spinneret 212 are provided There is a buckle (not shown in the figure), the spinneret 211 is provided with a vertical groove 211b matching the buckle on the side close to the hollow cavity 201, and the spinneret 212 is movably inserted into the corresponding The spinneret 212 is installed on the spinneret 211 in the vertical slot 211b, and the spinneret 212 moves up and down along the spinneret 211.

[0064] The end of each spinneret 211 is correspondingly provided with a spinneret driving part for driving the spinneret 212 to move up and dow...

Embodiment 3

[0067] The third embodiment is a further improvement of the first and second embodiments. For the same structures as those in the first and second embodiments, the same symbols are given, and the same descriptions are omitted.

[0068] In this embodiment, the liquid injection unit in the first embodiment is omitted, and the spinneret 211 adopts a cartridge-type structure that is repeatedly filled with liquid and has its own pressurizing unit. The specific structure is as follows:

[0069] Such as Figure 4 As shown, a vertical partition 214c is provided in the spinneret 211 to divide the inner space of the spinneret 211 into a spinneret chamber 211d and a pressurized chamber 211e. The spinning chamber 211d is close to the hollow cavity 201, and the outlet hole 211a is connected to the spinning chamber 211d; the pressurizing chamber 211e is away from the hollow cavity 201, and the spinning chamber 211d and the pressurizing chamber 211e are in the vertical partition 211c Connected at...

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Abstract

The invention provides an annular-spraying electrostatic spinning machine. The annular-spraying electrostatic spinning machine comprises a high-voltage direct-current power source, m thread spraying devices, a thread spraying receiver, a striping device and a traction twisting device, the thread spraying devices are mutually independent, have hollow cavities and used for performing thread sprayingon spinning liquid to form fiber, the thread spraying receiver has a receiving lead penetrating the hollow cavities and used for receiving and transferring the fiber, the striping device is used forstripping off the fiber wrapped on the receiving lead, and the traction twisting device is used for drawing and twisting the fiber striped off the receiving lead to form yarn; each thread spraying device comprises n thread spraying units and pretreatment units which are arranged in an annular closed manner to form a hollow cavity, at least thread spraying hole is formed in one sides, facing the hollow cavity, of the thread spraying units, and a positive electrode of the high-voltage direct-current power source is connected with the thread spraying units while the negative electrode of the sameis connected with the receiving lead. The invention further discloses application of the annular-spraying electrostatic spinning machine direct spinning processing of core spun yarn through electrostatic spinning.

Description

Technical field [0001] The invention relates to the technical field of electrostatic spinning equipment, in particular to a ring jet electrostatic spinning machine and its use. Background technique [0002] Electrospinning is a spinning technology that uses an electrostatic field to prepare a polymer solution or melt into nanometer or micrometer size fibers. Its basic principle is: under the action of an electrostatic generator, the electrospinning device and A high-voltage electrostatic field is formed between the electro-spinning fiber receiving devices. The spinning solution forms droplets at the nozzle and is charged. The charged droplets are accelerated under the action of the electric field force. When the electric field force is large enough, the charged droplets overcome the surface tension A charged jet is formed. When the charged jet runs in the electrostatic spinning space, it gradually solidifies with the volatilization of the solvent, and is finally collected by the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D02G3/36D01D5/00
Inventor 辛斌杰徐闻龙孟想郑元生陈卓明刘岩林兰天刘吉娜
Owner SHANGHAI UNIV OF ENG SCI
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