CN202725378U - Electro-spinning direct-writing jet printing control device - Google Patents
Electro-spinning direct-writing jet printing control device Download PDFInfo
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- CN202725378U CN202725378U CN 201220434953 CN201220434953U CN202725378U CN 202725378 U CN202725378 U CN 202725378U CN 201220434953 CN201220434953 CN 201220434953 CN 201220434953 U CN201220434953 U CN 201220434953U CN 202725378 U CN202725378 U CN 202725378U
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Abstract
The utility model discloses an electro-spinning direct-writing jet printing control device, which relates to an electric-hydraulic coupled jet printing device. The control device comprises a high-voltage power supply, a controller, an insulating bush, a gradient voltage electrode, a focusing ring, a pointed electrode, a collecting plate, a gradient voltage controller, a needle core, a nozzle, a liquid supply device, a sealing ring and a high-voltage electrode, wherein the control output end of the collecting plate is connected with the input end of the controller, and the output end of the controller is connected with the control input end of the collecting plate; the pointed electrode is arranged below the collecting plate, and the pointed electrode is arranged in the center of the focusing ring, and keeps contact with the collecting plate; the liquid supply device is communicated with the nozzle; the high-voltage electrode is arranged at the upper end of the nozzle through the sealing ring, and extends into the nozzle to be communicated with the needle core; the high-voltage electrode and the needle core are arranged in the nozzle, and an outlet of the nozzle faces the upper end of the insulating bush; and the gradient voltage electrode is arranged on the insulating bush, each electrode of the gradient voltage electrode is respectively connected with the gradient voltage controller, and the voltages of electrodes of the gradient voltage electrode are gradually reduced from top to bottom, so that a space electric field pointing from the nozzle to the collection plate is formed.
Description
Technical field
The utility model relates to a kind of electric liquid coupling jet printing appts, especially relates to a kind ofly can getting on to carry out the pinpoint electrospinning direct-writing spray printing of micro-nano structure control device in dielectric base.
Background technology
The many merits such as electricity liquid coupling spray printing technology is simple with its technique as a kind of emerging micro-nano manufacturing technology, handiness, raw material sources are extensive have received the concern of industrial quarters and academia day by day.Compare with traditional IC silicon micro-fabrication technology, electricity liquid coupling spray printing technical equipment is simple, low cost of manufacture, can realize in multiple substrate quick, the high accuracy manufacturing of micro-nano structure under normal temperature, normal pressure, the non-clean environment, more can satisfy the continuously production requirement in enormous quantities of flexible electronic device, and can realize the integrated of organic electronic and biological device.Electricity liquid coupling spray printing technology has demonstrated huge development potentiality and market prospects ([1] Wang Ke, Stark John.Applied Physics A:Materials Science ﹠amp in various fields with its unique advantage; Processing, 2010,99:763-766).Relatively adopt traditional spray printing technology of internal pressure, electric liquid coupling spray printing is that plus high-voltage field stretching viscoelastic solution generation jet carries out spray printing, all has clear superiority at aspects such as reducing spray printing structure live width, high viscosity solution spray printing, reduction equipment cost.At present, the electric liquid coupling spray printing mode that is expected to be applied to the flexible electronic microfabrication mainly is spinning jet spray printing (making continuous nano-fibre/micron film) and controlled spray printing (the controlled as required spray printing of discrete droplets may lure that also drop stack deposition forms continuous micro-nano structure into) as required.
Electricity liquid coupling spray printing process is subject to the impact of the many factors such as electric field force, the living stress of the glutinous bullet of electrical charge rejection power, unordered, the moving process of spiral whip that the spray printing jet exists, affected accurate location deposition and the pattern control of spray printing micro-nano structure, this has also greatly limited the application development of electric liquid coupling spray printing in the electronics production industry.Method by structure electrode, collecting board high-speed motion can suppress the spiral unsteady motion of jet to a certain extent, obtains orderly micro-nano structure, but can't realize the precise Positioning Control of spray printing micro-nano structure.
The proposition of near field electrostatic spinning technology is the orderly manufacturing of spray printing micro-nano structure and accurately locates to make and opened up a kind of technological approaches.([2] Sun D.H., Chang C., the LiS. such as Sun D.H., et al.Nano.Lett., 2006,6:839-842) the near field electrostatic spinning technology has been proposed, by adopting solid probe shower nozzle, reducing shower nozzle has been realized single nanofiber to methods such as collecting board distances controllable deposition.([3] the Chang C. such as Chang C, Limkrailassiri K., Lin L.W.Appl.Phys.Lett., 2008,93:123111) improved the near field electrostatic spinning technology, the method for utilizing probe tip to puncture shower nozzle place drop has realized the long-time continuous preparation of ordered nano-fibers.([4] the Park Jang-Ung such as Roger, Hardy Matt, Kang Seong Jun, et al.Nat Mater, 2007,6:782-789) adopt the disperse spray printing of micro-nano drop of the pulse power, substantially realized the control of drop ejection frequency, drop size, be subjected to the micro-nano structure spray printing precision that affects of the factors such as space electric field, solution solvent volatilization to remain further raising; Installing the conductor needle point in hollow shower nozzle additional is a kind of nozzle structure ([5] the Lee S. that often adopts at present, Byun D., Jun D., etal.Sensors and Actuators a-Physical, 2008,141:506-514), installing additional of conductor needle point reduced the injection starting resistor, reduced drop size, execute injection frequency and the size that alive frequency, amplitude can be controlled liquid droplets by adjusting, but this control mode still be difficult to finish the free on off control of course of injection and realize truly as required, fixed-point jet printing.
Electricity liquid coupling spray printing process jet carries a large amount of electric charges, and the electric charge after the deposition on jet/micro-nano structure will shift towards collecting board.If adopt dielectric base as collecting board, the entrained electric charge that comes of jet can't in time be led away and be focused on the collecting board surface, and will produce the electrical charge rejection effect and affect the positioning control deposition of micro-nano structure dielectric base the jet of subsequent deposition and nanofiber.R.Kessick([6] Kessick R., Fenn J., Tepper G.The use of AC potentials in electrospraying and electrospinning processes[J] .Polymer, 2004,45 (9): 2981-2984) etc. the employing method that exchanges electrostatic spinning has reduced the impact of electrical charge rejection power, has prepared ordered nano-fibers in dielectric base.The unordered spiral whip that the method for above-mentioned loading alternating voltage can better suppress jet moves, improves the stability of jet, and controlling for the orderly deposition of nanofiber to have preferably facilitation; But be subjected to the interference of many-sided influence factor, still can't realize the accurate positioning control of nanofiber or spray printing micro-nano structure.
At present, on dielectric base
Oneself becomes the difficult point of electric liquid coupling spray printing application study the accurate positioning control of electricity liquid coupling spray printing micro-structural, also is the Main Bottleneck that promotes its commercial application, is badly in need of at spray printing device and spray printing control technology new breakthrough being arranged.The utility model will conduct a research for the accurate positioning control of electric liquid coupling spray printing micro-nano structure on dielectric base.
Summary of the invention
The purpose of this utility model mainly is to provide a kind of can realize the pinpoint electrospinning direct-writing spray printing of orderly electric liquid coupling spray printing micro nano structure control device in dielectric base.
The utility model is provided with high voltage source, controller, insulating sleeve, gradient voltage electrode, focusing ring, pointed electrode, collecting board, gradient voltage controller, nook closing member, shower nozzle, liquid feed device, sealing ring and high-field electrode;
High-voltage power cathode connects high-field electrode, the high voltage source minus earth; The collecting board control output end connects the control input end of controller, and the control output end of controller connects the collecting board control input end; Pointed electrode is installed on the collecting board below, and pointed electrode is positioned at the center of focusing ring, and keeps touching with collecting board; Liquid feed device is communicated with shower nozzle; High-field electrode is installed on the shower nozzle upper end through sealing ring, and stretches in the shower nozzle and the nook closing member conducting; High-field electrode and nook closing member are arranged in shower nozzle, and the shower nozzle exit face is to the insulating sleeve upper end; The gradient voltage electrode is located on the insulating sleeve, and each electrode of gradient voltage electrode is connected with the gradient voltage controller respectively, and each electrode voltage of gradient voltage electrode successively by subtracting, consists of the space electric field that is pointed to collecting board by shower nozzle from top to bottom.
Described controller can adopt single-chip microcomputer.
Described shower nozzle exit end face is positioned at the insulating sleeve upper end, and preferably the shower nozzle exit end face is concordant with the insulating sleeve upper surface.
Described gradient voltage electrode can be the gradient voltage electrode of at least 2 gradients, is preferably the gradient voltage electrode of 3～8 gradients.
Described gradient voltage electrode is located on the insulating sleeve, and preferably the gradient voltage electrode is embedded in the insulating sleeve inwall.
Described focusing ring is preferably circular focusing ring, and diameter can be 3 ~ 5mm; The tip diameter of described pointed electrode can be 50～200 μ m; The diameter of described insulating sleeve can be 0.5 ~ 3cm, and length can be 0.5 ~ 5cm; Described nook closing member preferably is positioned at the shower nozzle inside center, can adopt the conductor probe as nook closing member, spray nozzle is preferably exposed in the nook closing member lower end, and the length that expose the nook closing member lower end can be 50 ~ 500 μ m, the diameter of nook closing member can be 80 ~ 180 μ m, and the internal diameter of the nozzle of described shower nozzle can be 100 ~ 500 μ m; Needle point diameter 1 ~ 20 μ m; The insulating sleeve lower port can be 0.5 ~ 10mm and adjustable apart from the collecting board distance.High voltage source can adopt DC high-voltage power supply, and its voltage is adjustable in 0 ~ 3000V scope in amplitude; High voltage source also can adopt ac high voltage source, and its Voltage Peak peak value is 0 ~ 4000V, and frequency is 0.1 ~ 200Hz.The gradient voltage controller preferably has a plurality of output electrodes, and output voltage is adjustable in 0 ~ 1000V scope.It is the insulating materials of 0.01 ~ 0.8mm that collecting board can adopt thickness, and also can adopt thickness is the semi-conducting material of 0.1 ~ 0.5mm.
Operation principle of the present utility model is as follows:
Because insulating sleeve is provided with the gradient voltage electrode, thereby between shower nozzle and collecting board, form the gradient electric field that is referred to uniformly collecting board by shower nozzle, to guide jet towards collecting board accelerated motion.Simultaneously, high voltage electric field will lure that the insulating sleeve surface produces positive charge and focuses on into, and the jet sports is become to repel effect of contraction, suppress the unsettled generation of jet spiral with the stability that keeps jet.
Because the collecting board below is provided with focusing ring, is provided with pointed electrode in the middle of the focusing ring.After the spinning jet is deposited on collecting board, entrained electric charge will be focused ring and pointed electrode constrains in the less scope, avoid the entrained electric charge of jet at the insulation collecting board jet deposition of follow-up spinning jet that disperse to distribute formed the repulsion electric field influence.Simultaneously, pointed electrode can be lured into and form space-focusing electric field leading jet towards the corresponding position motion of pointed electrode top collecting board deposition, be utilized the accurate control of jet deposition position.Press the desired trajectory motion by the control collecting board, bootable spinning jet deposits or produces pre-design pattern by predetermined point on collecting board.
Compared with the prior art, the utlity model has following outstanding advantages:
Introduce gradient electrode, improved directive property and uniformity towards collecting board board space electric field, reduce the disturbing factor of jet motion process, strengthened the stability of jet motion; Increase simultaneously insulating sleeve and can produce effect of contraction to charged jet, suppressed the generation of jet fluctuation, screw, be of value to the deposition region of control jet; Below collecting board, load focusing ring and pointed electrode, can form an electric field guiding spray printing jet deposition and be positioned above the pointed electrode inducing above the collecting board, realized the accurate location deposition of spray printing jet; And focusing ring and pointed electrode can retrain the distributed areas of electric charge on the collecting board effectively, have effectively overcome the interference effect of residual charge on the collecting board, realize the accurate location deposition of spray printing jet on dielectric base.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment.
The specific embodiment
Referring to Fig. 1, the utility model embodiment mainly is provided with high voltage source 1, controller 2(adopts single-chip microcomputer), insulating sleeve 3, gradient voltage electrode 4, focusing ring 5, pointed electrode 6, collecting board 7, gradient voltage controller 8, nook closing member 9, shower nozzle 10, liquid feed device 11, sealing ring 12 and high-field electrode 13.
Described focusing ring 5 is circular focusing ring, and diameter is 3 ~ 5mm; Tip diameter 50 ~ 200 μ m of described pointed electrode 6; The diameter of described insulating sleeve 3 is 0.5 ~ 3cm, and length is 0.5 ~ 5cm; Described nook closing member 9 is positioned at shower nozzle 10 inside center, adopts the conductor probe as nook closing member 9, and the nozzle of shower nozzle 10 is exposed in nook closing member 9 lower ends, and the length that expose nook closing member 9 lower ends is 50 ~ 500 μ m, and the diameter of nook closing member 9 is 80 ~ 180 μ m, needle point diameter 1 ~ 20 μ m.The internal diameter of the nozzle of described shower nozzle 10 is 100 ~ 500 μ m.Insulating sleeve 3 lower port are 0.5 ~ 10mm and adjustable apart from the distance of collecting board 7.High voltage source 1 adopts DC high-voltage power supply, and adjustable (high voltage source also can adopt ac high voltage source to its voltage, its Voltage Peak peak value 0 ~ 4000V, frequency 0.1 ~ 200Hz) in amplitude 0 ~ 3000V scope.Gradient voltage controller 8 has a plurality of output electrodes, and output voltage is adjustable in 0 ~ 1000V scope.Collecting board 7 adopts thickness at the insulating materials of 0.01～0.8mm scope, also can adopt thickness at the semi-conducting material of 0.1 ~ 0.5mm scope.
Claims (10)
1. an electrospinning direct-writing spray printing control device is characterized in that being provided with high voltage source, controller, insulating sleeve, gradient voltage electrode, focusing ring, pointed electrode, collecting board, gradient voltage controller, nook closing member, shower nozzle, liquid feed device, sealing ring and high-field electrode;
High-voltage power cathode connects high-field electrode, the high voltage source minus earth; The collecting board control output end connects the control input end of controller, and the control output end of controller connects the collecting board control input end; Pointed electrode is installed on the collecting board below, and pointed electrode is positioned at the center of focusing ring, and keeps touching with collecting board; Liquid feed device is communicated with shower nozzle; High-field electrode is installed on the shower nozzle upper end through sealing ring, and stretches in the shower nozzle and the nook closing member conducting; High-field electrode and nook closing member are arranged in shower nozzle, and the shower nozzle exit face is to the insulating sleeve upper end; The gradient voltage electrode is located on the insulating sleeve, and each electrode of gradient voltage electrode is connected with the gradient voltage controller respectively, and each electrode voltage of gradient voltage electrode successively by subtracting, consists of the space electric field that is pointed to collecting board by shower nozzle from top to bottom.
2. a kind of electrospinning direct-writing spray printing control device as claimed in claim 1 is characterized in that described controller adopts single-chip microcomputer.
3. a kind of electrospinning direct-writing spray printing control device as claimed in claim 1 is characterized in that described shower nozzle exit end face is concordant with the insulating sleeve upper surface.
4. a kind of electrospinning direct-writing spray printing control device as claimed in claim 1 is characterized in that the gradient voltage electrode that described gradient voltage electrode is 3～8 gradients.
5. a kind of electrospinning direct-writing spray printing control device as claimed in claim 1 is characterized in that described gradient voltage electrode is embedded in the insulating sleeve inwall.
6. a kind of electrospinning direct-writing spray printing control device as claimed in claim 1 is characterized in that described focusing ring is circular focusing ring, and diameter is 3 ~ 5mm; The tip diameter of described pointed electrode is 50 ~ 200 μ m; The diameter of described insulating sleeve is 0.5 ~ 3cm, and length is 0.5 ~ 5cm; Described nook closing member is positioned at the shower nozzle inside center, adopts the conductor probe as nook closing member, and spray nozzle is exposed in the nook closing member lower end, and the length that expose the nook closing member lower end is 50 ~ 500 μ m, and the diameter of nook closing member is 80 ~ 180 μ m, and the needle point diameter is 1 ~ 20 μ m; The internal diameter of the nozzle of described shower nozzle is 100 ~ 500 μ m; Described insulating sleeve lower port is 0.5 ~ 10mm and adjustable apart from the collecting board distance.
7. a kind of electrospinning direct-writing spray printing control device as claimed in claim 1 is characterized in that described high voltage source adopts DC high-voltage power supply, and supply voltage is 0 ~ 3000V.
8. a kind of electrospinning direct-writing spray printing control device as claimed in claim 1 is characterized in that high voltage source adopts ac high voltage source, and supply voltage is 0 ~ 4000V, and frequency is 0.1 ~ 200Hz.
9. a kind of electrospinning direct-writing spray printing control device as claimed in claim 1 is characterized in that described gradient voltage controller has a plurality of output electrodes, and output voltage is 0 ~ 1000V.
10. a kind of electrospinning direct-writing spray printing control device as claimed in claim 1 it is characterized in that it is the insulating materials of 0.01～0.8mm that collecting board adopts thickness, or employing thickness is the semi-conducting material of 0.1 ~ 0.5mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201220434953 CN202725378U (en) | 2012-08-29 | 2012-08-29 | Electro-spinning direct-writing jet printing control device |
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| CN 201220434953 CN202725378U (en) | 2012-08-29 | 2012-08-29 | Electro-spinning direct-writing jet printing control device |
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| CN202725378U true CN202725378U (en) | 2013-02-13 |
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| CN106847707A (en) * | 2017-01-18 | 2017-06-13 | 华中科技大学 | A kind of method that extending island bridge construction is prepared based on electrofluid Printing techniques |
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- 2012-08-29 CN CN 201220434953 patent/CN202725378U/en not_active Expired - Fee Related
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| CN104178721B (en) * | 2013-05-22 | 2016-08-10 | 中国科学院理化技术研究所 | The device and method of conductive film is directly made under room temperature |
| CN103400939B (en) * | 2013-08-15 | 2016-06-01 | 厦门大学 | A kind of polymer solar battery light trapping structure manufacture method |
| CN103400939A (en) * | 2013-08-15 | 2013-11-20 | 厦门大学 | Manufacturing method for light trapping structure of polymer solar cell |
| CN103464319A (en) * | 2013-09-05 | 2013-12-25 | 顾文华 | Two-segment electric-field structure electrostatic spray system, array and using method |
| CN103464319B (en) * | 2013-09-05 | 2016-06-08 | 顾文华 | Two sections of electric field structure electrostatic spraying systems and array and using method |
| CN104153012A (en) * | 2014-07-14 | 2014-11-19 | 厦门大学 | Conical micro-nanofiber preparation device and conical micro-nanofiber preparation method |
| CN106799891A (en) * | 2015-11-26 | 2017-06-06 | 深圳市富彩三维技术有限公司 | A kind of array electrofluid spray printing shower nozzle and logic control method |
| CN105584215A (en) * | 2015-12-18 | 2016-05-18 | 曾志斌 | Electrohydrodynamic jet printing lattice structure device and method thereof |
| CN106626803A (en) * | 2016-09-09 | 2017-05-10 | 华中科技大学 | Flexible electron electronic injection equipment having electric field adaptive characteristic and method |
| CN106653877A (en) * | 2016-12-14 | 2017-05-10 | 大连理工大学 | E-jet printing method for solar photovoltaic cell electrode |
| CN106591963A (en) * | 2016-12-30 | 2017-04-26 | 广东工业大学 | Probe continuous liquid supply device |
| CN106591963B (en) * | 2016-12-30 | 2019-07-19 | 广东工业大学 | A kind of probe continues liquid feed device |
| CN106847707A (en) * | 2017-01-18 | 2017-06-13 | 华中科技大学 | A kind of method that extending island bridge construction is prepared based on electrofluid Printing techniques |
| CN106847707B (en) * | 2017-01-18 | 2019-08-30 | 华中科技大学 | A method of extending island bridge structure is prepared based on electrofluid Printing techniques |
| CN109435474A (en) * | 2018-09-11 | 2019-03-08 | 华中科技大学 | A kind of multiinjector joint EFI print spray head with multi-electrode ring electric field controls function |
| CN109532242A (en) * | 2018-12-24 | 2019-03-29 | 华中科技大学 | A kind of electrostatic focusing electrofluid jet printing appts and method |
| CN114475015A (en) * | 2022-02-22 | 2022-05-13 | 南京微毫科技有限公司 | Electrostatic spraying direct writing system and method with focusing electric field structure |
| CN114775073A (en) * | 2022-05-16 | 2022-07-22 | 厦门理工学院 | Composite electric field electrostatic spray head |
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Granted publication date: 20130213 Termination date: 20190829 |
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| CF01 | Termination of patent right due to non-payment of annual fee |