CN204939670U - Air-flow auxiliary electrostatic device for spinning - Google Patents
Air-flow auxiliary electrostatic device for spinning Download PDFInfo
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- CN204939670U CN204939670U CN201520726304.6U CN201520726304U CN204939670U CN 204939670 U CN204939670 U CN 204939670U CN 201520726304 U CN201520726304 U CN 201520726304U CN 204939670 U CN204939670 U CN 204939670U
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Abstract
Air-flow auxiliary electrostatic device for spinning, relates to a kind of electrostatic spinning apparatus.Comprise shower nozzle, solution feed pump, high voltage source, air pump, pressure-reducing valve and collecting board, shower nozzle is provided with feed liquor cylinder, adjustment sheet, adapter, syringe needle and gas hood, feed liquor cylinder is coaxially connected with gas hood is vertical, adjustment sheet is located between feed liquor cylinder and gas hood composition surface, feed liquor cylinder is provided with feed pathway, feed pathway is communicated with solution feed pump, adapter is positioned at air-flow buffer indoor and is connected with bottom feed liquor cylinder, adapter is communicated with feed pathway, syringe needle is connected with bottom adapter, syringe needle is through gas hood diapire through hole, syringe needle is coaxial with gas hood, set by gas hood sidewall, inlet channel is communicated with air pump, gas hood intracavity bottom is provided with pilot flow, gas hood diapire is provided with constraint runner, above the inlet channel of gas hood, sidewall is provided with into electric channel, enter electric channel and binding post is installed, binding post one end touches with the adapter being positioned at gas hood, the binding post other end is connected with wire one end, and the other end of wire is connected with high voltage source.
Description
Technical field
The utility model relates to a kind of electrostatic spinning apparatus, especially relate to a kind of there is secondary air, air-flow auxiliary electrostatic device for spinning that adjustable air flow outlet and the distance of nozzle exit realize different air-flow auxiliaring effects.
Background technology
Electrostatic spinning technique is utilized to be utilize the stickiness power of electric field force and solution to carry out stretching solution, nano level fiber can be prepared, and the scope of application of its solution is wide, from Polymer Solution to metallic solution, electrostatic spinning technique all can be utilized to prepare nanofiber, and utilize the advantages such as nanofiber high-ratio surface sum high porosity, may be used on corresponding field, comprise the wire spray printing of microelectronics technology, the catalytic applications of chemical field, biomedical organizational project, filtration and clean water treatment etc.Traditional electrospinning process mainly utilizes the nozzle with fine solution channel under the quantitative liquid feeding of syringe pump, produce solution spilling and forms hanging drop, hanging drop polarizes and produces electric charge under the effect of high voltage source, and electric charge is stressed in the electric field of high voltage source, drive solution to overcome surface tension and carry out motion formation jet, jet stressed whip that carries out in space electric field moves refinement, and the final nanofiber that formed deposits.Current electrostatic spinning technique is still in the exploratory stage at present, and seminar both domestic and external and research institute have carried out the correlative study about each developing direction of electrostatic spinning.But also have and utilized nanofiber to carry out the exploitation of product and commercialization accordingly, such as utilized nanofibres deposit film forming to carry out filtration treatment.In filtration art, the shaping film of the nanofiber that in general average diameter is less can have higher filter efficiency, and research shows that the film of the nanofiber with the wider diameter dispersion of distribution has higher filter efficiency.In order to reduce the diameter of Electrospun nano-fibers, suitably can reduce the internal diameter of spinning nozzle, increase the intensity of space electric field, improve die opening and reduce the measures such as feed flow speed, but refinement nanofiber can only be carried out to a certain extent by the technological parameter changing electrostatic spinning process, there is limitation; Therefore have more researcher to start to introduce some other method and carry out auxiliary electrostatic spinning refinement nanofiber, such as introduce flow field and magnetic field, research shows to introduce flow field and utilizes air-flow to carry out auxiliary electrostatic spinning to have good effect.The utility model proposes a kind of device based on flow field auxiliary electrostatic spinning, there is secondary air, and adjustable air flow outlet and the distance of nozzle exit realize different air-flow auxiliaring effects; Coaxially installed by the through hole of nozzle and certain draw ratio and form sheaths and then form that sheaths air-flow around nozzle is auxiliary forms spinning jet and refinement nanofiber; Have additional gas-liquid spacing adjusting mechanism adjustment air flow outlet and realize different air-flow auxiliaring effects from the distance of nozzle exit; The stainless steel syringe needle being provided with standard, as nozzle, is convenient to the nozzle cleaning and change different inner diameters, is added the flexibility of the utility model spinning; By the feed liquor of Standardized Design device, air inlet and supplying channels, improve simplicity and security that device uses.This device can be used for laboratory and carries out electrostatic spinning Related Experimental Study, and the nano fibrous membrane that also can be used for preparing refinement diameter expands its Application Areas.
Summary of the invention
Main purpose of the present utility model is to provide a kind of adjustable air flow outlet and the distance of nozzle exit to realize the device based on flow field auxiliary electrostatic spinning of different air-flow auxiliaring effects.
The utility model comprises shower nozzle, solution feed pump, high voltage source, air pump, pressure-reducing valve and collecting board;
Shower nozzle is provided with feed liquor cylinder, adjustment sheet, adapter, syringe needle and gas hood, feed liquor cylinder is coaxially connected with gas hood is vertical, and form air-flow buffer room, adjustment sheet is located between feed liquor cylinder and gas hood composition surface, feed liquor cylinder is provided with feed pathway, feed pathway is communicated with solution feed pump, adapter is positioned at air-flow buffer indoor and is connected with bottom feed liquor cylinder, adapter is communicated with feed pathway, syringe needle is connected with the bottom of adapter and is communicated with adapter, syringe needle passes through hole set by gas hood diapire, syringe needle is coaxial with gas hood, sheaths is formed between syringe needle and gas hood bottom through-hole, set by gas hood sidewall, inlet channel is communicated with air pump, gas hood intracavity bottom is provided with pilot flow, gas hood diapire is provided with constraint runner, excessively smooth between pilot flow and constraint runner, above the inlet channel of gas hood, sidewall is provided with into electric channel, enter electric channel and binding post is installed, binding post one end touches with the adapter being positioned at gas hood, binding post one end is connected with wire one end, and the other end of wire is connected with high voltage source, high voltage source minus earth, collecting board to be positioned at immediately below shower nozzle and ground connection.
Further:
Described feed liquor cylinder and gas hood are insulator.
Described feed liquor cylinder is vertical with gas hood to be coaxially spirally connected.
The feed pathway of described feed liquor cylinder is located at top, and feed pathway is provided with straight coupling, and straight coupling to be exported with solution feed pump by feed pipe and is connected.
Described inlet channel is provided with straight coupling, and straight coupling to be exported with air pump through pressure-reducing valve by air supply pipe and is connected.
Described syringe needle is stainless steel syringe needle, directly can adopt standard component; Described syringe needle tail end can expose gas hood 0 ~ 6mm.
Described binding post is made up of stud and nut, stud and described enter electric channel be spirally connected, nut check stud.
1. described in, the draw ratio of gas hood diapire through hole can be 8 ~ 10.Gas hood bottom surface is taper seat, and the angle of the conical surface and horizontal plane can be 30 ° ~ 60 °.
Compared with the prior art, the beneficial effects of the utility model are as follows:
Form sheaths between syringe needle and gas hood diapire through hole, effectively can focus on output gas flow; Form spinning jet and refinement nanofiber; Adjustment sheet is installed between feed liquor cylinder and gas hood composition surface, can optionally install for regulating being mounted opposite distance thus regulating needle tip to stretch out the length of gas hood of gas hood and feed liquor cylinder by accessory as a kind of; Carrying out different needle tip extension elongation adjustments by arranging different adjustment sheet thickness, realizing different air-flow auxiliaring effects; The air-flow input air-flow buffer room regulating and controlling to realize particular pressure and flow velocity is carried out by air pump air feed and pressure-reducing valve; Pilot flow set by gas hood, bootable secondary air steady flow, to spinning-nozzle place, retrains the flow direction and the restraining force of the controlled air-flow processed of runner set by gas hood; Excessively smooth between the inner pilot flow of gas hood and constraint runner, can ensure that air-flow flows to smoothly, avoid the generation of stream swirl, reduce the interference of air-flow, be beneficial to the effect of contraction improving air-flow, the stability strengthening spinning jet; The utility model passes through the quantitative feed flow of solution feed pump, and the liquid feeding channel in straight coupling, feed liquor cylinder and the central through hole of adapter export stainless steel syringe needle to, and forms liquid meniscus at needle point place; Adopt stainless steel syringe needle can easy disassembly and cleaning, and the stainless steel syringe needle can changing different inner diameters is as nozzle, easy to adjust the carrying out realizing nozzle inside diameter technological parameter be tested or other purposes, can increase the flexibility of spinning.By air pump output gas flow to air-flow buffer room, and carry out auxiliary electrostatic spinning by the sheaths air-flow that through hole focused gas flow is formed around nozzle; The input intensity of air-flow can be regulated by pressure-reducing valve, the constraint strength of focused gas flow can be regulated by the design of through hole draw ratio.
The adjustment sheet that the utility model provides is provided with different-thickness, has 1mm ~ 3mm respectively; Its effect is installed between feed liquor cylinder and gas hood as pad, accessory as a kind of adjustment is optionally installed, because stainless steel syringe needle is installed on feed liquor cylinder by adapter, therefore install that adjustment sheet can regulate gas hood and feed liquor cylinder be mounted opposite distance, thus the distance of the needle point distance gas hood bottom surface of stainless steel syringe needle can be regulated; Adjustment sheet, feed liquor cylinder and gas hood are coaxially installed; When uneasiness debugs nodal plate, the extension elongation of the needle point distance gas hood bottom surface of stainless steel syringe needle is 6mm, by selective carry out adjustment sheet combination install realize the adjustment that needle point stretches out gas hood length, according to the Thickness Design of adjustment sheet, the adjustable range of needle point extension elongation is 0 ~ 6mm; Outlet passageway carries out focusing to air-flow and retrains and act on needle point, very large association is had with needle point apart from the distance of air stream outlet to the auxiliaring effect of spinning, regulate needle point to stretch out the regulation and control that gas hood length can realize air-flow auxiliaring effect, increase the free degree of electrostatic spinning.
The gas hood bottom edge that the utility model provides is taper seat, increase the visualization of stainless steel needle tip extension and needle point place jet state, prevent solution and fiber to be difficult to process in the deposition of gas hood bottom surface, the angle of the conical surface and horizontal plane can be 30 ~ 60 °; The side of gas hood, the top of air inlet are designed with screwed hole, and stud is connected with screwed hole, and Mechanical Contact reliable with adapter; Knurled nut is threaded with stud, by wire by screwing and Stud connection, the wire other end is connected with high voltage source, makes high voltage source, wire, stud, adapter become electric path with stainless pin capitiform, the power supply at needle point place is realized, high voltage source minus earth by high voltage source; Set knurled nut and stud are standard component; Collecting board is positioned at immediately below ejecting device and reliable ground carries out the collection of nanofiber.
The utility model, by the feed liquor of Standardized Design device, air inlet and supplying channels, improves simplicity and security that device uses.This device can be used for laboratory and carries out electrostatic spinning Related Experimental Study, and the nano fibrous membrane that also can be used for preparing refinement diameter expands its Application Areas.
Accompanying drawing explanation
Fig. 1 is the utility model example structure schematic diagram.
Respectively expression is marked: 1. solution feed pump, 2. high voltage source, 3. air pump, 4. pressure-reducing valve, 5. collecting board in Fig. 1,6. straight coupling, 7. feed liquor cylinder, 8. adjustment sheet, 9. adapter, 10. stainless steel syringe needle, 11. knurled nuts, 12. studs, 13. gas hoods, 14. pilot flows, 15. constraint runners.
Detailed description of the invention
See Fig. 1, the present embodiment comprises shower nozzle, solution feed pump 1, high voltage source 2, air pump 3, pressure-reducing valve 4 and collecting board 5;
Shower nozzle is provided with feed liquor cylinder 7, adjustment sheet 8, adapter 9, syringe needle 10 and gas hood 13; Feed liquor cylinder 7 and gas hood 13 are vertical to be coaxially connected, and forms air-flow buffer room.Adapter 9 is fixedly connected with by screw thread with bottom feed liquor cylinder 7, and stainless steel syringe needle 10 is installed with the bottom of adapter 9 and is connected; Gas hood 13 and feed liquor cylinder 7 are threaded connection, and form air-flow buffer room, and wherein gas hood 7 bottom through-hole is through stainless steel syringe needle 10, with stainless steel syringe needle 10 concentric, forms sheaths, effectively can focus on output gas flow between stainless steel syringe needle 10 and gas hood 13 through hole; And the needle point of stainless steel syringe needle 10 is parallel with bottom gas hood 13 or stretch out gas hood 13 bottom surface; Adjustment sheet 8 is installed between feed liquor cylinder 7 and gas hood 13 composition surface, can optionally install for regulating being mounted opposite distance thus regulating syringe needle 10 needle point to stretch out the length of gas hood of gas hood 13 and feed liquor cylinder 7 by accessory as a kind of; Carrying out different syringe needle 10 needle point extension elongation adjustments by arranging different adjustment sheet 8 thickness, realizing different air-flow auxiliaring effects; Adjustment sheet 8, feed liquor cylinder 7 and gas hood 13 are coaxially installed; The side of gas hood 13 is provided with inlet channel, be threaded connection with 1 straight coupling 6, straight coupling 6 other end is connected with pressure-reducing valve 5 and air pump 4 by conduit, carries out by air pump 4 air feed and pressure-reducing valve 5 the air-flow input air-flow buffer room regulating and controlling to realize particular pressure and flow velocity; Be provided with pilot flow 14 in gas hood 13, to guide secondary air steady flow to spinning-nozzle place, in the middle of bottom gas hood 13, be provided with the flow direction and restraining force that constraint runner 15 controls air-flow; Excessively smooth between the inner pilot flow of gas hood 13 14 and constraint runner 15, to ensure that air-flow flows to smoothly, avoid the generation of stream swirl, reduce the interference of air-flow, be beneficial to the effect of contraction improving air-flow, the stability strengthening spinning jet; Be provided with another 1 straight coupling 6 to be threaded connection with feed liquor cylinder 7 top, straight coupling 6 other end is by tubes connection solution feed pump 4, the solution that solution feed pump 4 exports inputs feed liquor cylinder 7 by straight coupling 6, export stainless steel syringe needle 10 to by the passage of feed liquor cylinder 7, adapter 9, and constantly supply solution at syringe needle 10 needle point place; The sensible top of air inlet of gas hood 13 is provided with into electric channel, stud 12 with enter electric channel and be threaded connection, and stud 12 end Mechanical Contact reliable with adapter 9; Knurled nut 11 is installed on clamping stud 12 carrying out current supply line; The other end of wire is connected with high voltage source 2 and realizes high voltage supply, high voltage source 2 minus earth; Collecting board 5 to be positioned at immediately below shower nozzle and reliable ground, carries out the collection of nanofiber.
Claims (9)
1. air-flow auxiliary electrostatic device for spinning, comprises shower nozzle, solution feed pump, high voltage source, air pump, pressure-reducing valve and collecting board, it is characterized in that, shower nozzle is provided with feed liquor cylinder, adjustment sheet, adapter, syringe needle and gas hood, feed liquor cylinder is coaxially connected with gas hood is vertical, and form air-flow buffer room, adjustment sheet is located between feed liquor cylinder and gas hood composition surface, feed liquor cylinder is provided with feed pathway, feed pathway is communicated with solution feed pump, adapter is positioned at air-flow buffer indoor and is connected with bottom feed liquor cylinder, adapter is communicated with feed pathway, syringe needle is connected with the bottom of adapter and is communicated with adapter, syringe needle passes through hole set by gas hood diapire, syringe needle is coaxial with gas hood, sheaths is formed between syringe needle and gas hood bottom through-hole, set by gas hood sidewall, inlet channel is communicated with air pump, gas hood intracavity bottom is provided with pilot flow, gas hood diapire is provided with constraint runner, excessively smooth between pilot flow and constraint runner, above the inlet channel of gas hood, sidewall is provided with into electric channel, enter electric channel and binding post is installed, binding post one end touches with the adapter being positioned at gas hood, binding post one end is connected with wire one end, and the other end of wire is connected with high voltage source, high voltage source minus earth, collecting board to be positioned at immediately below shower nozzle and ground connection.
2. air-flow auxiliary electrostatic device for spinning as claimed in claim 1, it is characterized in that, described feed liquor cylinder and gas hood are insulator.
3. air-flow auxiliary electrostatic device for spinning as claimed in claim 1, it is characterized in that, described feed liquor cylinder is vertical with gas hood to be coaxially spirally connected.
4. air-flow auxiliary electrostatic device for spinning as claimed in claim 1, it is characterized in that, the feed pathway of described feed liquor cylinder is located at top, and feed pathway is provided with straight coupling, and straight coupling to be exported with solution feed pump by feed pipe and is connected.
5. institute's air-flow auxiliary electrostatic device for spinning as claimed in claim 1, it is characterized in that, described inlet channel is provided with straight coupling, and straight coupling to be exported with air pump through pressure-reducing valve by air supply pipe and is connected.
6. air-flow auxiliary electrostatic device for spinning as claimed in claim 1, it is characterized in that, described syringe needle is stainless steel syringe needle, and described syringe needle tail end exposes gas hood 0 ~ 6mm.
7. air-flow auxiliary electrostatic device for spinning as claimed in claim 1, it is characterized in that, described binding post is made up of stud and nut, stud and described enter electric channel be spirally connected, nut check stud.
8. air-flow auxiliary electrostatic device for spinning as claimed in claim 1, it is characterized in that, the draw ratio of described gas hood diapire through hole is 8 ~ 10.
9. air-flow auxiliary electrostatic device for spinning as claimed in claim 1, it is characterized in that, gas hood bottom surface is taper seat, and the angle of the conical surface and horizontal plane is 30 ° ~ 60 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520726304.6U CN204939670U (en) | 2015-09-18 | 2015-09-18 | Air-flow auxiliary electrostatic device for spinning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520726304.6U CN204939670U (en) | 2015-09-18 | 2015-09-18 | Air-flow auxiliary electrostatic device for spinning |
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| Publication Number | Publication Date |
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| CN204939670U true CN204939670U (en) | 2016-01-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520726304.6U Expired - Fee Related CN204939670U (en) | 2015-09-18 | 2015-09-18 | Air-flow auxiliary electrostatic device for spinning |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108315829A (en) * | 2018-04-24 | 2018-07-24 | 苏州大学 | Aeration type electrostatic spinning apparatus and spinning process |
| CN109267159A (en) * | 2018-11-06 | 2019-01-25 | 厦门大学 | It is a kind of can quickly Multi-tip positioning electrostatic spinning nozzle |
| CN110219062A (en) * | 2019-06-26 | 2019-09-10 | 广东工业大学 | It is centrifuged electrospinning device and its gas assists wire vent system |
| CN110373726A (en) * | 2019-06-27 | 2019-10-25 | 东华大学 | A kind of evenly dispersed air-flow buffer mechanism applied to electrostatic spinning cabinet |
| CN110670156A (en) * | 2019-09-26 | 2020-01-10 | 佛山轻子精密测控技术有限公司 | Needle tip induction electrostatic spinning nozzle and needle tip induction electrostatic spinning device |
| CN111005078A (en) * | 2020-01-14 | 2020-04-14 | 中原工学院 | Airflow-assisted electrostatic spinning nozzle and using method thereof |
| CN112575392A (en) * | 2020-12-04 | 2021-03-30 | 生物岛实验室 | Ejection mechanism, electrostatic spinning device, electrostatic spraying device and ejection method |
| CN113755951A (en) * | 2021-09-14 | 2021-12-07 | 天津工业大学 | Continuous preparation device and method of self-twisting nanofiber yarn formed in one step |
-
2015
- 2015-09-18 CN CN201520726304.6U patent/CN204939670U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108315829A (en) * | 2018-04-24 | 2018-07-24 | 苏州大学 | Aeration type electrostatic spinning apparatus and spinning process |
| CN109267159A (en) * | 2018-11-06 | 2019-01-25 | 厦门大学 | It is a kind of can quickly Multi-tip positioning electrostatic spinning nozzle |
| CN110219062A (en) * | 2019-06-26 | 2019-09-10 | 广东工业大学 | It is centrifuged electrospinning device and its gas assists wire vent system |
| CN110219062B (en) * | 2019-06-26 | 2021-09-03 | 广东工业大学 | Centrifugal electrostatic spinning equipment and gas-assisted filament discharge system thereof |
| CN110373726A (en) * | 2019-06-27 | 2019-10-25 | 东华大学 | A kind of evenly dispersed air-flow buffer mechanism applied to electrostatic spinning cabinet |
| CN110373726B (en) * | 2019-06-27 | 2021-07-02 | 东华大学 | Uniform dispersion air flow buffer mechanism applied to electrostatic spinning box |
| CN110670156A (en) * | 2019-09-26 | 2020-01-10 | 佛山轻子精密测控技术有限公司 | Needle tip induction electrostatic spinning nozzle and needle tip induction electrostatic spinning device |
| CN111005078A (en) * | 2020-01-14 | 2020-04-14 | 中原工学院 | Airflow-assisted electrostatic spinning nozzle and using method thereof |
| CN112575392A (en) * | 2020-12-04 | 2021-03-30 | 生物岛实验室 | Ejection mechanism, electrostatic spinning device, electrostatic spraying device and ejection method |
| CN113755951A (en) * | 2021-09-14 | 2021-12-07 | 天津工业大学 | Continuous preparation device and method of self-twisting nanofiber yarn formed in one step |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160106 Termination date: 20180918 |