CN209456618U - A kind of spherical shape free interface melt electrostatic spinning device - Google Patents
A kind of spherical shape free interface melt electrostatic spinning device Download PDFInfo
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- CN209456618U CN209456618U CN201920128923.3U CN201920128923U CN209456618U CN 209456618 U CN209456618 U CN 209456618U CN 201920128923 U CN201920128923 U CN 201920128923U CN 209456618 U CN209456618 U CN 209456618U
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- 238000010041 electrostatic spinning Methods 0.000 title claims abstract description 24
- 239000007921 spray Substances 0.000 claims abstract description 45
- 238000010438 heat treatment Methods 0.000 claims description 44
- 238000009987 spinning Methods 0.000 abstract description 19
- 239000000835 fiber Substances 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 6
- 230000005684 electric field Effects 0.000 abstract description 5
- 229920000642 polymer Polymers 0.000 abstract description 5
- 230000006698 induction Effects 0.000 abstract description 4
- 238000001816 cooling Methods 0.000 abstract description 3
- 238000006073 displacement reaction Methods 0.000 abstract description 2
- 208000012886 Vertigo Diseases 0.000 description 16
- 239000007788 liquid Substances 0.000 description 8
- 239000002184 metal Substances 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 239000002121 nanofiber Substances 0.000 description 4
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 4
- 239000004810 polytetrafluoroethylene Substances 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- -1 polytetrafluoroethylene Polymers 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000003519 biomedical and dental material Substances 0.000 description 1
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- 239000000155 melt Substances 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
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- 230000010412 perfusion Effects 0.000 description 1
- 230000002572 peristaltic effect Effects 0.000 description 1
- 230000005622 photoelectricity Effects 0.000 description 1
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Landscapes
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Abstract
The utility model belongs to melt electrostatic spinning equipment technical field, more particularly to a kind of spherical free interface melt electrostatic spinning device, with spherical surface spray head as spinning port, with spherical surface receiving body as fiber receiving plane, it is designed using annular channel, polymer is heated be melt into melt after be uniformly distributed circumferentially, the spherical outer surface of spherical spray head is evenly distributed to by annular channel, spinning nozzle end ground connection, fiber receives termination high-field electrode, under its collective effect, high pressure uniform electric field is formed between spinning port and receiving plane, the spherical outer surface induction charging of spherical surface spray head, equally distributed melt is polarized thereon, and then it excites and forms more jet streams, since spherical outer surface is smooth free interface, jet stream band like charges, repulsive force between jet stream and jet stream brings it about micro-displacement, finally on smooth free interface Reach balance, form evenly spaced array arrangement formula jet stream, cooling and solidifying forms fiber in jet stream dropping process.
Description
Technical field:
The utility model belongs to melt electrostatic spinning equipment technical field, and in particular to a kind of spherical shape free interface melt is quiet
Electric spinning device can be improved the efficiency of melt electrostatic spinning.
Background technique:
Electrostatic spinning is the technique that polymer melt or solution are prepared into superfine fibre using high-pressure electrostatic, has and sets
Feature standby simple and that operation is easy, has received widespread attention, and is that prepare polymer continuous nano-fibre at present most important
One of method.With the continuous development of nano material technology, electrostatic spinning simple and effective produces nanofiber as a kind of
New Processing, played in terms of bio-medical material, filtering and protection, catalysis, the energy, photoelectricity and food engineering huge
Effect.A kind of hemispherical electrostatic spinning nozzle disclosed in Chinese patent 201320542047.1 is equipped with jet pipe and nozzle, on nozzle
Jet pipe lower part is inserted in portion, and nozzle lower part is in hemisphere, and hemisphere is equipped with mesh, and the mesh number of the mesh is 10~500 mesh；Institute
The length for stating jet pipe lower part and the cooperation of nozzle top is 3~4mm, and the jet pipe lower part is equipped with the chamfering assembled with nozzle top；
A kind of electrostatic spinning film dress of hollow circular-ring pipelines more spray heads and spherical surface film forming disclosed in Chinese patent 200920114032.9
It sets, the concentric circles point including power supply, pipeline, N number of pressure-adjustable propeller equipped with liquid storage and pressure-adjustable propeller same number
The hollow circular-ring pipelines of cloth, N-1 insulating hollow connecting tube, N-1 switch valve, conduit coupling, spray head, porosity spherical surface
Form a film receiver and ground line；N number of pressure-adjustable propeller equipped with liquid storage is connected to respective hollow circular-ring pipelines respectively, adjacent
Hollow circular-ring pipelines are connected by conduit coupling, by the insulating hollow connecting tube equipped with switch valve between adjacent hollow circular ring pipe
Connection, each hollow circular-ring pipelines lower section are equally spaced spray head, and power supply connects through pipeline and each hollow circular-ring pipelines
It connects, a porosity spherical surface film forming receiver and its ground line is set below hollow circular-ring pipelines；Chinese patent
201710046822.7 a kind of disclosed brush mass electrostatic spinning apparatus of ball shape rotary, including liquid-supplying system, separation electric field
Control system, ball shape rotary spinneret system and collecting nanofibers system, liquid-supplying system include gas cylinder, spinning solution reservoir, oil
Bath and catheter, in the oil bath that the spinning solution reservoir is arranged in, the spinning solution reservoir and catheter to brush liquid
Slot forms linker structure, and the spinning solution reservoir is connect by tracheae with gas cylinder, on the tracheae, at close gas cylinder successively
Equipped with main valve and pressure reducing valve, the separation electrical field control system includes high pressure generator, metal ring, cylindrical seat and support, institute
Support setting is stated in spinning solution reservoir upper end, on the cylindrical seat setting support, the metal ring is sleeved on cylindrical seat,
It is connect with high pressure generator；A kind of spherical more spray head Static Spinnings of bar transmission tandem disclosed in Chinese patent 201711439204.5
Silk device, including multiple spherical spray heads by corrosion resistance insulation rod piece connection, corrosion resistance insulation rod piece and motor drive
Device connection；Each spherical shape spray head is set to the top of a device for storing liquid, is equipped with a metal ring at the top of each device for storing liquid,
Spherical spray head is set in the metal ring, and metal ring surface is equipped with metal connection column, and metal connection column passes through high pressure resistant electric wire
It is connect with high pressure generator；The bottom of device for storing liquid is sequentially communicated solution buffer by corrosion resistance insulation perfusion tube, stores liquid
Bottle, is connected to solution feed pump between solution buffer and liquid-accumulating bottle, the branch road between solution buffer and each device for storing liquid is equipped with
Control valve, the nanofiber sprayed from spherical spray head are received by reception device；Disclosed in Chinese patent 201810375614.6
A kind of porous spherical electrostatic spinning nozzle, which is characterized in that the porous spherical electrostatic spinning nozzle is smooth solid in surface
Multiple holes are distributed on spherical surface in sphere；Porous spherical electrostatic spinning nozzle is connect by transmission shaft with motor one, porous spherical
The lower part of electrostatic spinning nozzle is impregnated in the spinning solution in reservoir, and the anode of spinning solution and high pressure generator connects, feed flow
Device is connected to by peristaltic pump with the bottom of reservoir；The top of porous spherical electrostatic spinning nozzle is equipped with reception device；China
The spherical electrostatic spinning nozzle that field distribution is controlled under spinning solution curvature, including ball are determined disclosed in patent 201810417357.8
Body, the sphere include copper sphere, and the surface of copper sphere has multiple grooves, multiple polytetrafluoroethylene (PTFE) filling block installations
In the groove, the outer surface of polytetrafluoroethylene (PTFE) filling block is consistent with the outer surface curvature of copper sphere；Above-mentioned patented product
Both for solution designs, it is not able to satisfy the market demand of melt electrostatic spinning, it is therefore desirable to improve melt electrostatic spinning
Production efficiency.
Summary of the invention:
The purpose of the utility model is to overcome defects of the existing technology, and it is quiet to research and develop a kind of spherical free interface melt
Electric spinning device improves the production efficiency of melt electrostatic spinning under the premise of compact-sized and easy to operate.
To achieve the goals above, the utility model relates to spherical free interface melt electrostatic spinning device main structure
Including first sleeve, the first heating coil, plunger, second sleeve, grounding electrode, the second heating coil, reference cone, spherical surface spray head, tightening
Screw, heating rod, heating rod conducting wire, hollow screw, spherical surface receiving body and electrostatic generator；Top is cylindrical, and lower part is in circle
The upper outside of the first sleeve of disk-like structure is laid with the first heating coil of cirque structure, and the center of first sleeve offers
Top is funnel-shaped, the first through hole of the cylindrical structure in lower part, and the top of first through hole is feed inlet, the inside of first through hole
It is placed with plunger with handles, the lower part and top of first sleeve are in the form of annular discs, the second sleeve of the cylindrical structure in lower part
Top connection, second sleeve are connect with grounding electrode, and the lower outside of second sleeve is laid with the second heating of cirque structure
Circle, the center of second sleeve offer that top is cylindrical, the second through-hole of lower part structure funnel-shaped, the inside of the second through-hole
It is provided with reference cone and spherical surface spray head, reference cone and spherical surface spray head pass through holding screw respectively and connect with second sleeve, reference cone and spherical surface
Gap between spray head and second sleeve forms annular channel, reference cone and spherical surface spray head screw-type connection, the lower part of reference cone and ball
The top of face spray head offers the third through-hole of the connection reference cone and spherical surface spray head of cylindrical structure, the inside setting of third through-hole
There is the heating rod of cylindrical structure, heating rod conducting wire sequentially passes through second sleeve and the second heating coil reaches the external world, and heating rod is led
Line is fixed in second sleeve and the second heating coil by hollow screw, and semicircular arc-shaped structure is provided with below spherical surface spray head
Spherical surface receiving body, spherical surface receiving body are connect with electrostatic generator.
The utility model compared with prior art, with spherical surface spray head as spinning port, with spherical surface receiving body as fiber
Receiving plane is designed using annular channel, polymer is heated be melt into melt after be uniformly distributed circumferentially, it is equal by annular channel
The even spherical outer surface for being distributed to spherical spray head, spinning nozzle end ground connection, fiber receives termination high-field electrode, in its collective effect
Under, formation high pressure uniform electric field between spinning port and receiving plane, the spherical outer surface induction charging of spherical surface spray head, thereon uniformly
The melt of distribution is polarized, and then is excited and formed more jet streams, and since spherical outer surface is smooth free interface, jet stream band is of the same race
Charge, the repulsive force between jet stream and jet stream bring it about micro-displacement, and balance is finally reached on smooth free interface, are formed
Evenly spaced array arrangement formula jet stream, cooling and solidifying forms fiber in jet stream dropping process；Its structure is simple, using entire half
Spherical surface makes melt form more jet streams in spherical Free Surface as spinning port, increases jet stream and generates area, and utilizes
Repulsive force makes it be evenly distributed between jet stream, even in fiber diameter distribution, increases single nozzle fiber output efficiency, with routine
Dotted or linear spinning nozzle end is compared, and production efficiency is improved.
Detailed description of the invention:
Fig. 1 is the main structure schematic illustration of the utility model.
Specific embodiment:
It is described in further detail with reference to the accompanying drawing and by embodiment to the utility model.
Embodiment 1:
The main structure for the spherical free interface melt electrostatic spinning device that the present embodiment is related to includes first sleeve 1,
One heating coil 2, plunger 5, second sleeve 6, grounding electrode 7, the second heating coil 8, reference cone 10, spherical surface spray head 11, holding screw 12,
Heating rod 15, heating rod conducting wire 16, hollow screw 17, spherical surface receiving body 18 and electrostatic generator 19；Top is cylindrical, lower part
The upper outside of the first sleeve 1 of structure in the form of annular discs is laid with the first heating coil 2 of cirque structure, in first sleeve 1
The heart offers that top is funnel-shaped, the first through hole 3 of the cylindrical structure in lower part, and the top of first through hole 3 is feed inlet 4, the
The inside of one through-hole 3 is placed with plunger 5 with handles, and the lower part and top of first sleeve 1 are in the form of annular discs, the cylindrical knot in lower part
The top of the second sleeve 6 of structure connects, and second sleeve 6 is connect with grounding electrode 7, and the lower outside of second sleeve 6 is laid with circle
Second heating coil 8 of ring structure, the center of second sleeve 6 offer that top is cylindrical, and the of lower part structure funnel-shaped
Two through-holes 9, the second through-hole 9 are internally provided with reference cone 10 and spherical surface spray head 11, and reference cone 10 and spherical surface spray head 11 are respectively by tight
Determine screw 12 to connect with second sleeve 6, the gap between reference cone 10 and spherical surface spray head 11 and second sleeve 6 forms annular channel
13, reference cone 10 and 11 screw-type connection of spherical surface spray head, the lower part of reference cone 10 and the top of spherical surface spray head 11 offer cylindrical knot
The third through-hole 14 of the connection reference cone 10 and spherical surface spray head 11 of structure, the heating for being internally provided with cylindrical structure of third through-hole 14
Stick 15, heating rod conducting wire 16 sequentially passes through second sleeve 6 and the second heating coil 8 reaches the external world, and heating rod conducting wire 16 passes through hollow
Screw 17 is fixed in second sleeve 6 and the second heating coil 8, and the lower section of spherical surface spray head 11 is provided with the spherical surface of semicircular arc-shaped structure
Receiving body 18, spherical surface receiving body 18 are connect with electrostatic generator 19.
The diameter for 1 lower part of first sleeve that the present embodiment is related to is equal to the diameter on 6 top of second sleeve；First heating coil 2
Diameter be greater than the second heating coil 8 diameter；Diameter of the diameter of 3 lower part of first through hole less than 9 top of the second through-hole；Feed inlet
4 be the passway that polymeric aggregate or powder enter first sleeve 1；Plunger 5 has closing 9 lower part of the second through-hole, squeezes melt
With the effect of limit；The bottom end of second sleeve 6 extends to form conical surface tip from inside to outside；Grounding electrode 7 is protective grounding electrode；
The top of reference cone 10 is cone, and lower part is in cylindrical body, and the bottom of cylindrical body is provided with external screw thread；The top of spherical surface spray head 11 is
Cylindrical body, middle part are the frustum of a cone, and lower part is hemisphere, are provided with internal screw thread at the top of cylindrical body；Holding screw 12 is GB/T85-
The oval styletable holding screw of 1988 square toes；The size of annular channel 13 screws in reference cone 10 and spherical surface spray head 11 by holding screw 12
Depth adjustment；The diameter of third through-hole 14 is more than or equal to the diameter of heating rod 15；Heating rod 15 is stainless steel heating rod；Heating
Stick conducting wire 16 is copper conductor；Hollow screw 17 is ISO5832-1 stainless steel screw；Spherical surface receiving body 18 is fiber received vector；
Electrostatic generator 19 is for generating high-pressure electrostatic.
The spherical free interface melt electrostatic spinning device that the present embodiment is related to is in use, take out plunger 5, from feed inlet 4
Polymeric aggregate is added, and perhaps powder using 5 squeeze polymer pellet of plunger or powder makes it accelerate into first sleeve 1,
Polymeric aggregate or powder are thermally formed melt by the first heating coil 2, and melt flows to second sleeve 6 and in reference cone 10
It is uniformly distributed on the conical surface, melt is redistributed after flowing into annular channel 13, and the second heating coil of period 8 and heating rod 15 can be protected
The temperature of melt is held, melt is finally uniformly distributed in the spherical outer surface of spherical surface spray head 11, in grounding electrode 7 and electrostatic generator
Under 19 collective effect, uniform electric field is formed between spherical surface spray head 11 and spherical surface receiving body 18,11 induction charging of spherical surface spray head,
The equally distributed melt induction charging of the spherical outer surface of spherical surface spray head 11 forms more jet streams, and cooling is solid in jet stream dropping process
Change forms fiber, and band like charges between jet stream and jet stream, identical charges repel each other, due to being arranged between jet stream without limiting surface
Repulsion makes jet location change, and after adjusting after a period of time, is finally reached equilibrium state, forms spacing and uniformly penetrates more
Stream, jet stream spacing are 0.5-1.5mm, and jet stream is cooled and solidified during falling on spherical surface receiving body 18 under spherical surface spray head 11 and formed
Fiber；First heating coil 2, the second heating coil 8 and 15 collective effect of heating rod make melt keep the temperature and mobility that set.
Claims (1)
1. a kind of spherical shape free interface melt electrostatic spinning device, it is characterised in that main structure include first sleeve, first plus
Gas ket, plunger, second sleeve, grounding electrode, the second heating coil, reference cone, spherical surface spray head, holding screw, heating rod, heating rod are led
Line, hollow screw, spherical surface receiving body and electrostatic generator；Top is cylindrical, the first sleeve of lower part structure in the form of annular discs
Upper outside is laid with the first heating coil of cirque structure, and the center of first sleeve offers that top is funnel-shaped, and lower part is in
The top of the first through hole of cylindrical-shaped structure, first through hole is feed inlet, and the inside of first through hole is placed with plunger with handles,
The lower part of first sleeve and top are in the form of annular discs, the connection of the top of the second sleeve of the cylindrical structure in lower part, second sleeve with
Grounding electrode connection, the lower outside of second sleeve are laid with the second heating coil of cirque structure, and the center of second sleeve is opened
Cylindrical equipped with top, the second through-hole of lower part structure funnel-shaped, the second through-hole is internally provided with reference cone and spherical surface spray
Head, reference cone and spherical surface spray head pass through holding screw respectively and connect with second sleeve, between reference cone and spherical surface spray head and second sleeve
Gap form annular channel, reference cone and spherical surface spray head screw-type connection, the lower part of reference cone and the top of spherical surface spray head offer
The third through-hole of the connection reference cone and spherical surface spray head of cylindrical structure, the heating for being internally provided with cylindrical structure of third through-hole
Stick, heating rod conducting wire sequentially passes through second sleeve and the second heating coil reaches the external world, and heating rod conducting wire is fixed by hollow screw
In second sleeve and the second heating coil, the spherical surface receiving body of semicircular arc-shaped structure is provided with below spherical surface spray head, spherical surface connects
Acceptor is connect with electrostatic generator.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920128923.3U CN209456618U (en) | 2019-01-25 | 2019-01-25 | A kind of spherical shape free interface melt electrostatic spinning device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920128923.3U CN209456618U (en) | 2019-01-25 | 2019-01-25 | A kind of spherical shape free interface melt electrostatic spinning device |
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| Publication Number | Publication Date |
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| CN209456618U true CN209456618U (en) | 2019-10-01 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109778324A (en) * | 2019-01-25 | 2019-05-21 | 青岛科技大学 | A kind of spherical shape free interface melt electrostatic spinning device |
| CN111270319A (en) * | 2020-03-31 | 2020-06-12 | 苏州大学 | Trapezoidal spherical multi-needle-head bubble spinning device and method |
-
2019
- 2019-01-25 CN CN201920128923.3U patent/CN209456618U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109778324A (en) * | 2019-01-25 | 2019-05-21 | 青岛科技大学 | A kind of spherical shape free interface melt electrostatic spinning device |
| CN109778324B (en) * | 2019-01-25 | 2023-09-15 | 青岛科技大学 | Spherical free interface melt electrostatic spinning device |
| CN111270319A (en) * | 2020-03-31 | 2020-06-12 | 苏州大学 | Trapezoidal spherical multi-needle-head bubble spinning device and method |
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