CN201147741Y - Piezoelectric microsphere sprayer head - Google Patents
Piezoelectric microsphere sprayer head Download PDFInfo
- Publication number
- CN201147741Y CN201147741Y CNU2007201995084U CN200720199508U CN201147741Y CN 201147741 Y CN201147741 Y CN 201147741Y CN U2007201995084 U CNU2007201995084 U CN U2007201995084U CN 200720199508 U CN200720199508 U CN 200720199508U CN 201147741 Y CN201147741 Y CN 201147741Y
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- nozzle
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- piezoelectric
- piezoelectric type
- shower nozzle
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Abstract
The utility model discloses a piezoelectric type micro droplet spray head, which is easy to be cleaned and replaced, and can resist chemical corrosion. The piezoelectric type micro droplet spray head adopts the technical proposal that the spray head comprises a driving controller for outputting an impulse voltage driving signal, a support and a mounting plate; a piezoelectric ceramic driver further comprises a piezoelectric ceramic plate, the right end of the piezoelectric ceramic plate flaps the cocking column downwardly firstly, and reset upwardly then under the action of the impulse voltage driving signal; a cocker comprises a cocking column and a rest part, wherein, the cocking column adopts a step-shaped structure; the reset part is connected with the upper part of the cocking column, when the reset part resets upwardly at the right end of the piezoelectric ceramic plate, the cocking column returns to the right position upwardly under the action of a spring; a spraying nozzle further comprises a spray nozzle tube and a spray nozzle hole, wherein, the external thread of the spray nozzle tube is connected with the support, the upper half part thereof is matched with the cocking column to guide, the lower half part thereof and the cocking column form a holding cavity, to store spray liquid; the spray nozzle hole is arranged at the bottom part of the spray nozzle tube, the spray liquid stored in the spray nozzle tube is sprayed out under the action of the cocking column downwardly moving. The piezoelectric type micro droplet spray head is applied in printing equipment.
Description
Technical field
The utility model relates to a kind of shower nozzle, relates in particular to the relative piezoelectric ceramic actuator of a kind of nozzle independently, separately the piezoelectric type droplet shower nozzle of fast assembling-disassembling.
Background technology
Droplet ejection (droplet jetting) is the technology that forces liquid to shoot out from the aperture (nozzle) of cavity volume with the form of droplet with external force, so-called " droplet " is meant that its size can accurately be controlled to micron (μ m) level level, volume can be controlled in microlitre (μ L) to (fL) level level of ascending to heaven, and it is a kind of state-of-the-art technology that is developed out by inkjet printing.This technology has resolution ratio height, injection frequency height, can realize the high accuracy of liquid droplets volume, ultra tiny control, can adopt diversified jetting fluid, therefore is widely used in two-dimentional droplet ejection systems and three-dimensional droplet ejection systems.Wherein, the exemplary two dimensional droplet ejection systems has ink-jet printer, ink jet numbering machine, air brushing machine, sprays net making machine, point gum machine, biochip point sample instrument and combined material chip point sample instrument; The three-dimensional droplet ejection systems of typical case has the 3 D-printing fast forming machine.
The key problem in technology of droplet ejection systems is the droplet shower nozzle, and the droplet shower nozzle can be divided into continous way (ContinuousPrinting, be called for short CP) and (Drop-On-Demand, abbreviation DOD claims random mode again) two classes as required.After controller sent injection signal, each nozzle of continuous injection system can constantly penetrate the liquid stream that is made of drop, and each nozzle of need based jet system only sprays a dropping liquid and drips.Typical droplet shower nozzle has electric deflection formula, valve-regulated, thermal bubble type (electrothermal) and piezoelectric type etc.In above-mentioned several droplet shower nozzles, with fastest developing speed is piezoelectric type droplet shower nozzle, and this shower nozzle has become the main flow of current droplet shower nozzle.
Piezoelectric type shower nozzle (piezoelectric printing head) belongs to the need based jet shower nozzle, and Fig. 1 shows the basic principle of existing piezoelectric type shower nozzle.Its utilizes and apply pulse voltage signal 12 on piezoelectric ceramic actuator 11, makes it produce the liquid in distortion and the extruding jet and liquid is sprayed.The piezoelectric type shower nozzle is made up of piezoelectric ceramic actuator 11, nozzle 14 and little cavity volume 15 etc. usually.Do not apply on piezoelectric ceramic actuator 11 when driving signal, the pressure of liquid is enough low in the little cavity volume 15, and liquid is because of in surface tension the remains on little cavity volume; When needing to spray, on piezoelectric ceramic actuator 11, apply a pulse voltage 12, the micron order distortion takes place in piezoelectric actuator 11 immediately, barrier film 17 is distortion downwards thereupon also, thereby the volume of little cavity volume 15 is dwindled rapidly, produce the pressure wave towards nozzle 14, this pressure wave overcomes the pressure loss in the nozzle 14 and the surface tension of liquid, make nozzle 14 exits form a drop 13, and make it from nozzle 14 outlet ejections.Then, piezoelectric ceramic actuator 11 restores to the original state, and new liquid is entered the little cavity volume 15 of shower nozzle by passage 16 and 18.
There are following two subject matters in this piezoelectric type shower nozzle: (1) adopts integral structure, must cause integral body to scrap in case lose efficacy.In existing this piezoelectric type shower nozzle, piezoelectric ceramic actuator and cavity volume, nozzle constitute unitary member, the user can not change wherein some parts voluntarily, therefore in use, tend to because spray nozzle clogging and situation that can't cleaning and dredging make shower nozzle integral body scrap, expensive piezoelectric ceramic actuator also can't utilize again, cause very big waste, also become the misgivings of user's maximum.(2) environmental condition of Shi Yonging is limited.Existing this piezoelectric type shower nozzle generally is that the field at wilderness demand manufactures and designs, therefore the environmental condition that is suitable for limits to some extent, for example, the piezoelectric type shower nozzle that is used for common figure message printing is difficult to bear chemical attack usually, can not be used to spray the liquid that contains organic solvent.
Summary of the invention
The purpose of this utility model is to address the above problem, and a kind of piezoelectric type droplet shower nozzle is provided, and piezoelectric ceramic actuator and nozzle are mutual separate structure, is convenient to clean and the replacing nozzle, and can resists chemical attack, can spray the liquid that contains organic solvent.
The technical solution of the utility model is: the utility model has disclosed a kind of piezoelectric type droplet shower nozzle, it is characterized in that, comprising:
Driving governor, voltage pulse output drives signal;
Bearing;
Installing plate is positioned on this bearing;
Piezoelectric ceramic actuator is connected with this driving governor, further comprises:
Piezoelectric ceramic piece drives in this pulse voltage under the effect of signal, and the right-hand member of this piezoelectric ceramic piece is patted the percussion post earlier downwards, upwards resets then;
Firing device further comprises:
The percussion post, step-like structure;
Return unit is connected with the top of this percussion post, when the right-hand member of this piezoelectric ceramic piece upwards resets, makes this percussion post in company with upwards setting back under spring action;
Nozzle further comprises:
Nozzle barrel, its external screw-thread links to each other with this bearing, and the first half cooperates with this percussion post finishes guiding, and the latter half and this percussion post form cavity volume jointly so that the storage jetting fluid;
Nozzle bore is opened in the bottom of this nozzle barrel, and the jetting fluid of this nozzle barrel storage sprays from this nozzle bore under the effect that this percussion post moves down.
Above-mentioned piezoelectric type droplet shower nozzle, wherein, the cylindrical of this nozzle barrel is to be threaded, the endoporus of this bearing is to be threaded.
Above-mentioned piezoelectric type droplet shower nozzle, wherein, this nozzle barrel this bearing relatively is rotatable, the nozzle bore on this nozzle barrel position of this percussion post lower surface relatively can be regulated.
Above-mentioned piezoelectric type droplet shower nozzle, wherein, this nozzle barrel top has inclined channel, so that the air that injecting jet liquid and eliminating are sneaked into.
Above-mentioned piezoelectric type droplet shower nozzle, wherein, this return unit is the fixing springs in two ends, when this piezoelectric ceramic piece right-hand member is patted, compresses this spring downwards; When the piezoelectric ceramic piece right-hand member upwards resetted, spring reset lifted this percussion post.
Above-mentioned piezoelectric type droplet shower nozzle, wherein, this percussion post and this nozzle barrel endoporus are for being slidingly matched.
Above-mentioned piezoelectric type droplet shower nozzle, wherein, this nozzle bore is a throttling pore, and diameter is less than 100 μ m, and length is less than 0.5mm.
Above-mentioned piezoelectric type droplet shower nozzle, wherein, this nozzle barrel that contacts with this jetting fluid and this percussion post are by not making with the material of organic solvent reaction.
Above-mentioned piezoelectric type droplet shower nozzle, wherein, the material that does not react with organic solvent of this nozzle barrel and this percussion post comprises stainless steel, polytetrafluoroethylene (PTFE), pottery.
Above-mentioned piezoelectric type droplet shower nozzle wherein, also is provided with pressing plate and gripper shoe on this bearing, the other end of this piezoelectric ceramic piece is clamped between this pressing plate and this gripper shoe, fixes with screw.
The utility model contrast prior art has following beneficial effect: piezoelectric type droplet shower nozzle of the present utility model makes the mechanical connection that is difficult for fractionation between piezoelectric ceramic actuator and the nozzle by nozzle barrel and bearing threaded engagement, is mutual discrete structure.In use,, when the dismounting nozzle, need not to touch piezoelectric ceramic actuator, can not influence the operate as normal of piezoelectric ceramic actuator, more can not make drives fail, thereby can clean, change nozzle quickly and easily in case nozzle bore obstruction even inefficacy take place.In addition, the parts employing stainless steel that the utility model contacts with jetting fluid etc. are not made with the material that organic solvent reacts, and make shower nozzle can resist chemical attack, can spray the liquid that contains organic solvent.
Description of drawings
Fig. 1 is the schematic diagram of existing piezoelectric type droplet shower nozzle.
Fig. 2 is the structure chart of an embodiment of piezoelectric type droplet shower nozzle of the present utility model.
Fig. 3 is the A-A sectional view of Fig. 2 embodiment.
Fig. 4 is the vertical view of Fig. 2 embodiment.
The specific embodiment
For a more detailed description below in conjunction with drawings and Examples to the technical solution of the utility model.
Fig. 2 shows the structure of piezoelectric type droplet shower nozzle of the present utility model.See also Fig. 2, piezoelectric type droplet shower nozzle comprises: driving governor (not shown), bearing 28, installing plate 32, piezoelectric ceramic actuator and nozzle.The pulse voltage of driving governor output drives signal, is the set of pulses signal that is made of jeting instruction and reset instruction.Installing plate 32 is positioned on the bearing 28, and all parts of droplet shower nozzle are installed on installing plate 32 and the bearing 28.Piezoelectric ceramic actuator is connected with driving governor, comprising: piezoelectric ceramic piece 21 and firing device.Firing device further comprises the percussion post 23 and the return unit 22 of step-like structure again.Return unit 22 is connected with the top of percussion post 23, is positioned under the right-hand member of piezoelectric ceramic piece 21, after finishing once injection, under the effect of driving governor, piezoelectric ceramic piece 21 resets, and the elastic reaction that percussion post 23 is subjected to return unit 22 also sets back, and prepares for spray next time.Return unit 22 is the fixing springs in two ends, spring compression when piezoelectric ceramic piece 21 right-hand members are patted downwards, spring reset and pop up percussion post 23 when piezoelectric ceramic piece 21 right-hand members upwards reset.The two ends of return unit 22 are fixed on the reset cradle 33 with screw 34 respectively, and reset cradle 33 usefulness are threaded and are fixed on the bearing 28, as shown in Figure 3.Piezoelectric ceramic piece 21 is neighbouring separate structure with percussion post 23.The nozzle bore 26 that nozzle comprises nozzle barrel 24 and is opened in the nozzle barrel bottom.Percussion post 23 places in the endoporus of nozzle barrel 24, between the two for being slidingly matched.Nozzle barrel 24 is fixed on to be threaded on the bearing 28, and top cooperates with percussion post 23 finishes guide function., bottom and the percussion post 23 common cavity volume storage jetting fluids 25 that form.Bearing 28 swivel nozzle tubes 24 can make nozzle bore 26 position the best of percussion post 23 lower surfaces relatively relatively.Top at nozzle barrel 24 has inclined channel, so that the air that injecting jet liquid and eliminating are sneaked into.When the right-hand member of piezoelectric ceramic piece 21 is out of shape downwards under the effect of pulse voltage driving signal, percussion post 23 compression return units 22, and in nozzle barrel 24, move downward fast; When the right-hand member of piezoelectric ceramic piece 21 resetted (upwards distortion), percussion post 23 upwards lifted rapidly in nozzle barrel 24 under the effect of return unit 22.Also be provided with pressing plate 30 and gripper shoe 29 on bearing, the left end of piezoelectric ceramic piece 21 is clamped in the middle of pressing plate 30 and the gripper shoe 29 in screw 31 fixing modes.Because percussion post 23 is the effect of rapid movement downwards in nozzle barrel 24, force liquid 25 to go out ejection from nozzle bore 26, form drop 27.Nozzle bore 26 is micron-sized throttling pore, and diameter is less than 100 μ m, and length is less than 0.5mm, and when driving governor did not send the liquid droplets instruction, liquid 25 can not flow out from nozzle bore 26.
Other are not made with the material of organic solvent reaction by stainless steel or polytetrafluoroethylene (PTFE), pottery etc. for the nozzle barrel that contacts with jetting fluid 24 and percussion post 23, have good corrosion resistance, can resist the chemical attack of solvent.
The operation principle of piezoelectric type droplet shower nozzle of the present utility model is as follows.The left end of piezoelectric ceramic piece 21 is clamped between pressing plate 30 and the gripper shoe 29, and is fixing with screw 31.Piezoelectric ceramic piece 21 links to each other with driving governor (not shown) by connecting line c, e, d.When driving governor sends the liquid droplets instruction, apply pulse voltage signal by connecting line c, e, d to piezoelectric ceramic piece 21, the right-hand member of piezoelectric ceramic piece 21 is taken place immediately to bottom offset, percussion post 23 is moved downward fast along the endoporus of nozzle barrel 24, force the liquid 25 that is stored in nozzle barrel 24 bottoms with ejection from minute nozzle hole 26 at a high speed, form droplet 27.After once injection was finished, piezoelectric ceramic piece 21 and percussion post 32 upwards resetted rapidly, prepare for spray next time.
When needs change jetting fluid or nozzle bore 26 take place to stop up need to clean, when changing, the operator can directly screw off nozzle barrel 24 from bearing 28.Again nozzle barrel 24 is screwed in bearings 28 after finishing and finish installation cleaning or change.
The foregoing description provides to those of ordinary skills and realizes or use of the present utility model; those of ordinary skills can be under the situation that does not break away from invention thought of the present utility model; the foregoing description is made various modifications or variation; thereby protection domain of the present utility model do not limit by the foregoing description, and should be the maximum magnitude that meets the inventive features that claims mention.
Claims (10)
1, a kind of piezoelectric type droplet shower nozzle is characterized in that, comprising:
Driving governor, voltage pulse output drives signal;
Bearing;
Installing plate is positioned on this bearing;
Piezoelectric ceramic actuator is connected with this driving governor, further comprises:
Piezoelectric ceramic piece drives in this pulse voltage under the effect of signal, and the right-hand member of this piezoelectric ceramic piece is patted the percussion post earlier downwards, upwards resets then;
Firing device further comprises:
The percussion post, step-like structure;
Return unit is connected with the top of this percussion post, when the right-hand member of this piezoelectric ceramic piece upwards resets, makes this percussion post in company with upwards setting back under spring action;
Nozzle further comprises:
Nozzle barrel, its external screw-thread links to each other with this bearing, and the first half cooperates with this percussion post finishes guiding, and the latter half and this percussion post form cavity volume jointly so that the storage jetting fluid;
Nozzle bore is opened in the bottom of this nozzle barrel, and the jetting fluid of this nozzle barrel storage sprays from this nozzle bore under the effect that this percussion post moves down.
2, piezoelectric type droplet shower nozzle according to claim 1 is characterized in that the cylindrical of this nozzle barrel is to be threaded, and the endoporus of this bearing is to be threaded.
3, piezoelectric type droplet shower nozzle according to claim 1 is characterized in that, this nozzle barrel this bearing relatively is rotatable, and the nozzle bore on this nozzle barrel position of this percussion post lower surface relatively can be regulated.
4, according to claim 1 or 3 described piezoelectric type droplet shower nozzles, it is characterized in that this nozzle barrel top has inclined channel, so that the air that injecting jet liquid and eliminating are sneaked into.
5, piezoelectric type droplet shower nozzle according to claim 1 is characterized in that, this return unit is the fixing springs in two ends, when this piezoelectric ceramic piece right-hand member is patted, compresses this spring downwards; When the piezoelectric ceramic piece right-hand member upwards resetted, spring reset lifted this percussion post.
6, piezoelectric type droplet shower nozzle according to claim 5 is characterized in that, this percussion post and this nozzle barrel endoporus are for being slidingly matched.
7, piezoelectric type droplet shower nozzle according to claim 1 is characterized in that this nozzle bore is a throttling pore, and diameter is less than 100 μ m, and length is less than 0.5mm.
8, piezoelectric type droplet shower nozzle according to claim 1 is characterized in that, this nozzle barrel that contacts with this jetting fluid and this percussion post are by not making with the material of organic solvent reaction.
9, piezoelectric type droplet shower nozzle according to claim 8 is characterized in that, the material that does not react with organic solvent of this nozzle barrel and this percussion post comprises stainless steel, polytetrafluoroethylene (PTFE), pottery.
10, piezoelectric type droplet shower nozzle according to claim 1 is characterized in that, also is provided with pressing plate and gripper shoe on this bearing, and the other end of this piezoelectric ceramic piece is clamped between this pressing plate and this gripper shoe, fixes with screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201995084U CN201147741Y (en) | 2007-12-20 | 2007-12-20 | Piezoelectric microsphere sprayer head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201995084U CN201147741Y (en) | 2007-12-20 | 2007-12-20 | Piezoelectric microsphere sprayer head |
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| CN201147741Y true CN201147741Y (en) | 2008-11-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2007201995084U Expired - Lifetime CN201147741Y (en) | 2007-12-20 | 2007-12-20 | Piezoelectric microsphere sprayer head |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102107164A (en) * | 2010-12-18 | 2011-06-29 | 江苏锐毕利实业有限公司 | FFMJ (freeform fabrication with micro-droplet jetting) system |
| CN102259491A (en) * | 2011-06-10 | 2011-11-30 | 哈尔滨工业大学深圳研究生院 | Piezoelectric drive jet-type dotting device |
| CN102275386A (en) * | 2011-06-17 | 2011-12-14 | 华中科技大学 | Coaxial jet head for electro-hydrodynamic jet printing and application thereof |
| CN102700255A (en) * | 2012-06-05 | 2012-10-03 | 杭州威士德喷码技术有限公司 | Impact needle of spray head of large character code spraying machine |
| CN102744405A (en) * | 2011-04-20 | 2012-10-24 | 国家纳米科学中心 | Rapid molding device and piezoelectric type injection system |
| CN103111402A (en) * | 2013-03-08 | 2013-05-22 | 厦门大学 | Jet type glue supply head |
| CN103465639A (en) * | 2013-08-15 | 2013-12-25 | 中国科学院新疆理化技术研究所 | Preparation method for moulding ultra-micro bead |
| CN104307695A (en) * | 2014-10-09 | 2015-01-28 | 吉林大学 | Piezoelectric-static hybrid driven planar dispensing device |
| CN105772245A (en) * | 2016-03-18 | 2016-07-20 | 浙江大学滨海产业技术研究院 | Droplet spraying separation device and separation method |
| CN106000778A (en) * | 2016-07-30 | 2016-10-12 | 南京拓益森精密电子有限公司 | Self-limiting impact type jetting glue-dispensing device |
| CN106042375A (en) * | 2016-05-27 | 2016-10-26 | 中北大学 | Digital jet sprayer for additive manufacturing |
| CN107377873A (en) * | 2017-07-27 | 2017-11-24 | 宁夏共享模具有限公司 | A kind of non-contact piezoelectric type 3D printing droplet ejection printhead |
| CN108909184A (en) * | 2018-07-17 | 2018-11-30 | 深圳市华星光电技术有限公司 | Printing head, printing equipment with temp regulating function |
| CN110488028A (en) * | 2019-08-28 | 2019-11-22 | 北京慧荣和科技有限公司 | A kind of ultra micro quantity of fluid sample adding device |
| CN110653374A (en) * | 2019-10-17 | 2020-01-07 | 上海睿度光电科技有限公司 | Differential distribution device for liquid metal under normal temperature condition and use method thereof |
| CN111889680A (en) * | 2020-06-09 | 2020-11-06 | 哈尔滨工业大学 | Direct on-demand printing mechanism for hot-melt metal micro-droplets based on piezoelectric micro-jetting |
-
2007
- 2007-12-20 CN CNU2007201995084U patent/CN201147741Y/en not_active Expired - Lifetime
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102107164A (en) * | 2010-12-18 | 2011-06-29 | 江苏锐毕利实业有限公司 | FFMJ (freeform fabrication with micro-droplet jetting) system |
| CN102744405A (en) * | 2011-04-20 | 2012-10-24 | 国家纳米科学中心 | Rapid molding device and piezoelectric type injection system |
| CN102259491A (en) * | 2011-06-10 | 2011-11-30 | 哈尔滨工业大学深圳研究生院 | Piezoelectric drive jet-type dotting device |
| CN102259491B (en) * | 2011-06-10 | 2013-04-24 | 哈尔滨工业大学深圳研究生院 | Piezoelectric drive jet-type dotting device |
| CN102275386A (en) * | 2011-06-17 | 2011-12-14 | 华中科技大学 | Coaxial jet head for electro-hydrodynamic jet printing and application thereof |
| CN102275386B (en) * | 2011-06-17 | 2013-05-22 | 华中科技大学 | Coaxial jet head for electro-hydrodynamic jet printing and application thereof |
| CN102700255A (en) * | 2012-06-05 | 2012-10-03 | 杭州威士德喷码技术有限公司 | Impact needle of spray head of large character code spraying machine |
| CN103111402B (en) * | 2013-03-08 | 2015-05-27 | 厦门大学 | Jet type glue supply head |
| CN103111402A (en) * | 2013-03-08 | 2013-05-22 | 厦门大学 | Jet type glue supply head |
| CN103465639A (en) * | 2013-08-15 | 2013-12-25 | 中国科学院新疆理化技术研究所 | Preparation method for moulding ultra-micro bead |
| CN103465639B (en) * | 2013-08-15 | 2015-11-18 | 中国科学院新疆理化技术研究所 | The preparation method that a kind of ultra-micro bead is shaping |
| CN104307695A (en) * | 2014-10-09 | 2015-01-28 | 吉林大学 | Piezoelectric-static hybrid driven planar dispensing device |
| CN105772245A (en) * | 2016-03-18 | 2016-07-20 | 浙江大学滨海产业技术研究院 | Droplet spraying separation device and separation method |
| CN106042375A (en) * | 2016-05-27 | 2016-10-26 | 中北大学 | Digital jet sprayer for additive manufacturing |
| CN106000778A (en) * | 2016-07-30 | 2016-10-12 | 南京拓益森精密电子有限公司 | Self-limiting impact type jetting glue-dispensing device |
| CN107377873A (en) * | 2017-07-27 | 2017-11-24 | 宁夏共享模具有限公司 | A kind of non-contact piezoelectric type 3D printing droplet ejection printhead |
| CN107377873B (en) * | 2017-07-27 | 2022-08-09 | 共享智能装备有限公司 | Non-contact piezoelectric type micro-droplet jet printing head for 3D printing |
| CN108909184A (en) * | 2018-07-17 | 2018-11-30 | 深圳市华星光电技术有限公司 | Printing head, printing equipment with temp regulating function |
| CN110488028A (en) * | 2019-08-28 | 2019-11-22 | 北京慧荣和科技有限公司 | A kind of ultra micro quantity of fluid sample adding device |
| CN110653374A (en) * | 2019-10-17 | 2020-01-07 | 上海睿度光电科技有限公司 | Differential distribution device for liquid metal under normal temperature condition and use method thereof |
| CN110653374B (en) * | 2019-10-17 | 2023-08-18 | 上海睿度光电科技有限公司 | Micro-dispensing device for liquid metal under normal temperature condition and application method thereof |
| CN111889680A (en) * | 2020-06-09 | 2020-11-06 | 哈尔滨工业大学 | Direct on-demand printing mechanism for hot-melt metal micro-droplets based on piezoelectric micro-jetting |
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Owner name: KUNSHAN BOLIMAI 3D PRINTING TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: XIAO JIANZHONG Effective date: 20140425 |
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Effective date of registration: 20140425 Address after: Kunshan City, Suzhou City, 215007 Zuchongzhi Road No. 1699 in Jiangsu Province Patentee after: KUNSHAN BOLIMAI THREE DIMENSIONAL PRINTING SCIENCE & TECHNOLOGY CO., LTD. Address before: 430074 room 5-1802, senior District, Huazhong University of Science and Technology, Wuhan, Wuhan, Hubei Patentee before: Xiao Jianzhong |
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| CX01 | Expiry of patent term |
Granted publication date: 20081112 |