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A centrifugal spinning nozzle for spinning sheath-core structure fibers

A technology of centrifugal spinning and skin-core structure, which is applied in fiber processing, textiles and papermaking, filament/thread forming, etc. It can solve the problems of not being able to generate skin-core structure spinning fibers, etc., and achieve the effect of high product quality

Active Publication Date: 2020-12-15
WUHAN TEXTILE UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the defects and problems existing in the prior art that cannot generate skin-core structure spun fibers, and provide a centrifugal spinning nozzle capable of producing skin-core structure spun fibers and spinning out skin-core structure fibers

Method used

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  • A centrifugal spinning nozzle for spinning sheath-core structure fibers
  • A centrifugal spinning nozzle for spinning sheath-core structure fibers
  • A centrifugal spinning nozzle for spinning sheath-core structure fibers

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] see Figure 1 to Figure 7 , a centrifugal spinning nozzle for spinning skin-core structure fibers, comprising an inner hollow shell 2, an inner spinneret tube 3 and an inner rotating tube 4, the inside of the inner hollow shell 2 is provided with an inner cavity 21, and the inner hollow shell 2 The side of the inner spinneret 3 is connected with the inner end of the inner hollow shell 2, and the bottom of the inner hollow shell 2 is connected with the top of the inner rotating tube 4; the centrifugal spinning nozzle also includes a middle sleeve body 5, an outer hollow shell 6, an outer The spinneret 7 and the outer rotating tube 8, the outside of the inner hollow shell 2 is covered with a middle sleeve body 5, and the top and left side of the middle sleeve body 5 are equipped with the same outer hollow shell 6. The inside of the shell 6 is provided with an outer cavity 61 in contact with the middle sleeve body 5, the side of the outer hollow shell 6 is connected with t...

Embodiment 2

[0053] Basic content is the same as embodiment 1, the difference is:

[0054] The inner nozzle 32 protrudes outwardly relative to the outer nozzle 72 . Both the outer entrance 73 and the inner entrance 33 are arc-shaped structures, and the projection of the outer entrance 73 toward the inner entrance 33 is located on the same spherical surface as the arc surface where the inner entrance 33 is located. The top view structures of the inner spinneret 3 and the outer spinneret 7 are isosceles trapezoids with narrow outside and wide inside.

Embodiment 3

[0056] Basic content is the same as embodiment 1, the difference is:

[0057] The inner hollow shell 2 includes an upper inner spherical shell 22 and an inner lower plate 23 connected up and down, and the middle sleeve body 5 includes a middle top plate 52 , a middle side ball circumference 53 , and a middle bottom plate 54 sequentially connected from top to bottom. , the outer hollow shell 6 includes an outer vertical plate 62, an outer top plate 63, an outer arc circumference 64, and an outer bottom plate 65 connected in sequence, and the bottom end of the outer vertical plate 62 is connected with the top surface of the middle top plate 52, The outer end of the outer bottom flat plate 65 is connected with the bottom of the outer arc circumference 64, the inner end of the outer bottom flat plate 65 is connected with the outer wall of the middle side spherical circumference 53, and the middle bottom flat plate 54 is vertically connected with the top of the outer rotating tube 8...

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Abstract

A centrifugal spinneret for spinning of fiber with a skin-core structure comprises an inner hollow casing, an inner spinning pipe, an inner rotating pipe, a middle sleeve body, an outer hollow casingand an outer spinning pipe, wherein the outer side of the inner hollow casing is sleeved with the middle sleeve body, the top and the left side of the middle sleeve body is sleeved with the same outerhollow casing, an outer cavity making contact with the middle casing body is formed in the outer hollow casing, the side part of the outer hollow casing and the inner end of the outer spinning pipe are connected, the outer cavity sequentially passes through an outer inlet and an outer pipe cavity sequentially and then is communicated with an outer nozzle, an inner cavity sequentially passes through an inner inlet and an inner pipe cavity sequentially to be communicated with the inner nozzle, the bottom of the middle sleeve body is connected with the top end of the outer rotating pipe, the outer rotating pipe and an inner rotating pipe penetrating through the inner rotating pipe are coaxially arranged, and an outer end of the inner spinning pipe sequentially penetrates through the middle sleeve body, the outer cavity and the outer spinning pipe to make contact with the external environment. By means of the design, the spun fiber with the skin-core structure can be produced and the product quality is higher.

Description

technical field [0001] The invention relates to a centrifugal spinning nozzle, which belongs to the field of textile equipment, in particular to a centrifugal spinning nozzle for spinning skin-core structure fibers, and is particularly suitable for preparing skin-core structure spinning fibers. Background technique [0002] Nanofibers refer to ultrafine fibers with a diameter of tens to hundreds of nanometers, which are widely used in textile materials, tissue engineering scaffolds, drug delivery, filter media, artificial blood vessels, biochips, nanosensors, optics, composite materials and other fields. Methods for preparing nanofibers include stretching, microphase separation, template synthesis, self-assembly, electrospinning, centrifugal spinning, etc., wherein centrifugal spinning refers to the process of polymer melt or solution produced by a high-speed rotating device. Centrifugal force and shear force are thrown out of the pores to form fibers. [0003] The authoriz...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01D5/34
CPCD01D5/34
Inventor 张智明徐巧姬巧玲梅顺齐肖人彬张彪
Owner WUHAN TEXTILE UNIV
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