CN109159422B - Laser-assisted electrospray in-situ printing device - Google Patents
Laser-assisted electrospray in-situ printing device Download PDFInfo
- Publication number
- CN109159422B CN109159422B CN201811175787.XA CN201811175787A CN109159422B CN 109159422 B CN109159422 B CN 109159422B CN 201811175787 A CN201811175787 A CN 201811175787A CN 109159422 B CN109159422 B CN 109159422B
- Authority
- CN
- China
- Prior art keywords
- printing
- laser
- situ
- electrospray
- spray needle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
- B29C64/264—Arrangements for irradiation
- B29C64/268—Arrangements for irradiation using laser beams; using electron beams [EB]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
Abstract
The invention belongs to the technical field of advanced manufacturing, and provides a laser-assisted electrospray in-situ printing device which comprises an electrospray printing module and a laser functionalization processing module. The functional material ink of the electrospray printing module flows out from a nozzle under the action of pressure, forms stable Taylor cone spray and emits stable fine jet flow under the action of an electrohydrodynamic effect, and the stable Taylor cone spray is sprayed on a substrate to form a printing layer. The laser functional processing module is used for carrying out in-situ composite processing on the printing layer and synchronously realizing functional processing of in-situ high-temperature solidification, in-situ crystallization and the like of the printing structure. According to the invention, the functional structure and the device are directly realized on the required substrate, the problems of secondary positioning errors such as transfer printing, pasting and splicing in the traditional method are solved, the problems of weak binding force, low sensitivity and the like caused by an adhesive process are avoided, the precision and the binding strength of the printing structure are improved, the precision of the printing micro-nano structure is ensured, and the in-situ functionalization of the functional material is realized.
Description
Technical Field
The invention belongs to the technical field of advanced manufacturing, and particularly relates to a laser-assisted electrospray in-situ printing manufacturing device.
Background
With the integration and deep integration of advanced manufacturing technology, information technology and intelligent technology, high-end intelligent equipment is continuously developed towards modularization, integration and intellectualization, and therefore more functional structural units such as sensing, driving and control need to be integrated to meet specific functional requirements.
A large number of intelligent equipment components which need to integrate a plurality of discrete functional structural units to realize specific comprehensive functions cooperatively exist in the fields of aviation, aerospace, medical treatment, microelectronics and the like. For example, morphing-wing aircraft synergistically accomplish wing morphing by integrating hundreds of piezoelectrically driven micro-machines on composite profiled airfoils; the high-frequency 3D phased array ultrasonic scanning probe integrates nearly hundreds of piezoelectric transduction array elements on the inner surface of an epoxy resin spherical crown in an array mode to achieve the high-resolution 3D dynamic focusing scanning function. The overall performance of the intelligent equipment assembly strongly depends on the performance of the functional units, the spatial layout precision of the functional units and the bonding strength of the functional unit-substrate. Currently, most of these assemblies are manufactured by transferring, pasting, splicing, etc. the discrete units are assembled and mounted on the substrate. These methods, though simple and practical, have problems of limited spatial layout accuracy, excessively large manufacturing scale of the functional unit, and poor bonding performance between the functional unit and the substrate.
Disclosure of Invention
The invention provides a laser-assisted electrospray in-situ printing manufacturing device for solving the problems in the prior art. Electric field force is applied to functional material ink, micro-nano-scale jet flow is formed through electric injection based on an electrohydrodynamic effect, a printing layer is formed on a substrate, then in-situ functionalization processing such as solidification and crystallization of the printing structure is synchronously realized through composite processing of laser on the printing layer, and functionalization of the structure and devices is realized in situ. The invention directly realizes functional structures and devices on the needed matrix, thereby eliminating the problems of secondary positioning errors such as transfer printing, sticking, splicing and the like in the traditional method; the problems of weak binding force, low sensitivity and the like caused by an adhesive process are avoided. And feature size of the functional unit is reduced by virtue of electrospray high resolution printing advantages. The method directly manufactures the micro-nano functional structure on the substrate in situ, improves the dimensional precision and the bonding strength of the structure, and further improves the sensitivity and the stability of the device.
The technical scheme of the invention is as follows:
a laser-assisted electrospray in-situ printing device comprises an electrospray printing module and a laser functionalization processing module;
the electrospray printing module comprises a PC upper computer 1, a CCD camera 2, a high-voltage power supply 3, a micro-injection pump 4, a precision injector 5, a conduit 6, a spray needle 7 and a motion platform 9; the precision injector 5 is arranged on the micro-injection pump 4, the functional material ink is arranged in the precision injector, and a push handle of the micro-injection pump 4 pushes the precision injector 5 to accurately feed according to a certain flow; the spray needle 7 is connected with the precision injector 5 through a hose 6, and the functional material ink flows to the position of the spray needle 6; the positive output end of the high-voltage power supply 3 is connected with the spray needle 7, the negative end of the high-voltage power supply is connected with the printing flat plate 14, and a stable electric field is formed between the spray needle 7 and the printing flat plate 14; the functional material ink flows out of the spray needle 7 under the pushing of the micro-injection pump 4, and meanwhile, under the action of an electric field, a stable Taylor cone 10 is formed at the opening of the spray needle 7 and ejects a stable fine jet flow 11 to form a printing layer on a substrate; the X axis and the Y axis are combined to form various motion paths, and the height between the spray needle 7 and the printing flat plate 14 is adjusted by the Z axis so as to meet various printing requirements; the PC upper computer 1 controls the CCD camera 2 through a USB interface, and the CCD camera 2 detects the stability of the Taylor cone 10 in the printing area and the printing path of the printing layer;
the laser functional processing module comprises a PC upper computer 1 and a laser energy device 8; the PC upper computer 1 controls the power, the scanning speed, the light spots and the frequency of the laser energy device 8; an irradiation probe of the laser energy device 8 and the spray needle 7 are fixed on a Z axis of the motion platform 9 together, and the repetition of a laser beam scanning track and a printing track is ensured.
The laser energy device 8 generates laser beams 12, the irradiated area instantly generates 20-1000 ℃ high temperature, different spot sizes, scanning speeds and scanning paths are adjusted according to different temperature requirements, and the heat effect of the laser is utilized to complete the composite processing of the printing microstructure 13.
The total laser power of the laser energy device 8 is 10W, and the temperature range is 20-1000 ℃.
The spot diameter of the laser beam 12 of the laser energy device 8 is 2-20 um.
The scanning speed of the laser beam 12 is <1000 mm/s.
The inner diameter of the nozzle needle 7 opening is 150 um.
The invention has the beneficial effects that: the invention avoids the problems of errors accumulated in the steps of multi-wheel positioning, marking, pasting and the like in the splicing process of the traditional manufacturing method and weak contact rigidity caused by an adhesive, improves the dimensional precision and the bonding strength of the structure, and further improves the sensitivity and the stability of a precision device.
The invention can form micro-nano-sized microstructures by means of the advantages of electrospray high-resolution printing, greatly reduce the characteristic size of a structural functional unit, and has great application value for integrating a plurality of functional structural units on equipment with limited space size and the like.
The laser in-situ heat treatment method of the invention is to carry out in-situ composite treatment on the printing structure by utilizing the laser heat effect, realizes in-situ functionalization of the printing structure such as solidification, crystallization and the like in situ, and can directly form the functionalized structure and devices in situ. Meanwhile, the method only carries out high-temperature heat treatment on the printing layer structure, and does not affect the printing substrate, so that the substrate material is widely applied.
Drawings
FIG. 1 is a three-dimensional schematic diagram of an electrospray printing manufacturing apparatus.
FIG. 2 is a three-dimensional schematic diagram of electrospray printing and laser in-situ functionalization processes.
Wherein: 1 PC upper computer; 2, a CCD detection camera; 3, a high-voltage power supply; 4 micro injection pump; 5, a precision injector; 6 a conduit; 7, spraying a needle; 8 laser energy device; 9 a motion platform; 10 Theiler awl; 11 fine jet flow; 12 a laser beam; 13 printing the microstructure; 14 print the flat panel.
Detailed Description
The invention is further explained by combining the technical scheme and the attached drawings, and the laser-assisted electrospray in-situ printing manufacturing device comprises an electrospray printing module, a laser in-situ functionalization processing module and the like.
The precision injector 5 is arranged on the micro-injection pump 4, and ZnO suspension ink is filled in the precision injector. The needle 7 is connected with the precision injector 5 through a hose 6, and the needle 7 is connected with the Z axis and can move in the vertical direction. The high-voltage power supply 3 outputs 1200V voltage, the positive electrode output end is connected with the spray needle 7, and the negative electrode is connected with the printing flat plate 14. The printing substrate is placed on the printing plate 14, and the X/Y axis motion platform can drive the printing plate 14 to move according to a predetermined motion track. The PC upper computer 1 can adjust the energy density of the laser energy device 8 to generate a laser beam 12 and control a laser scanning path, so that the functional material of the printing microstructure 13 is subjected to heat treatment for removing stress, in-situ solidification and crystallization treatment. The PC upper computer 1 is connected with the CCD camera 2 through a USB connecting line, and conditions such as the stability of the Taylor cone 10 in a printing area and a scanning path of the energy laser beam 12 are monitored.
The specific implementation steps of the embodiment are as follows:
1) electrospray printed microstructures
The high-voltage power supply 3 is connected with the spray needle 7 and the moving platform plate 14 respectively at the positive output end and the negative output end, the high-voltage power supply 3 applies 1200V voltage, ZnO suspension is selected as 'functional material ink', the ZnO suspension is slowly pushed by the micro-injection pump 4, the flow rate is about 0.5 mu L/min, the ZnO suspension flows from the precision injector 5 to the outlet of the spray needle 7 through the guide pipe 6, a stable Taylor cone 10 is formed at the position of the spray needle under the action of an electric field, a gravity field and the like, and a stable fine jet 11 is generated and sprayed on the substrate to form a printing layer. The printing substrate is placed on a platform plate 14, the height between a spray needle 7 and the substrate can be adjusted by a Z axis to be about 600 micrometers, a PC upper computer 1 controls a motion platform 9 to drive the platform plate to move according to a preset motion track, the fine jet flow 11 is sprayed and printed on the substrate to form a specified shape, the thickness of each printing layer is about 1 micrometer, and after a certain number of layers are printed according to a specified height, the forming functional structure is directly printed and manufactured in situ. The printing condition of cone jet flow in the visual field of the CCD camera 2 can be monitored in the screen of the upper computer 1.
2) Laser in-situ functionalization process
After a layer of ZnO suspension is printed by electrospray, the PC upper computer 1 automatically starts the energy laser 8 and generates a laser beam 12, and the irradiated place can instantly generate high temperature. The laser beam 12 irradiates the printed layer according to the scanning of the track of the previous electrospray printing, the power of the laser energy device is adjusted to be 20%, the scanning speed is 120mm/s, the size of the light plate is 0.2mm, and the printed layer is subjected to the first scanning irradiation to remove the stress. After the scanning is finished, the power of the laser is automatically adjusted to 35% by the program again, other parameters are unchanged, and the printed layer is further scanned to remove stress. After the in-situ heat treatment is finished, the upper computer automatically adjusts the power of the laser to 80%, the scanning speed is 50mm/s, the laser beam 12 is irradiated on the printing layer again, and the high-temperature solidification and crystallization treatment is completed in situ on the printing layer. The steps of electrospray printing, laser in-situ heat treatment and crystallization treatment are circulated in this way until the printing of the microstructure with the required function is completed.
A laser-assisted electrospray in-situ printing manufacturing device utilizes functional material ink to eject nanoscale fine jet flow under the combined action of electric field force, gravity, surface tension, viscous force and the like, and a microstructure with a required shape can be printed by moving a printing substrate according to a preset track. Meanwhile, a laser energy device is adopted to irradiate the printing layer, the organic solvent is removed by the in-situ high-temperature heat treatment of the printing layer, and the in-situ solidification and crystallization treatment are carried out, so that the 'ink' in-situ functionalized printing manufacturing is realized. The method directly prints and manufactures the required micro-nano scale functionalized structure on the substrate in situ by means of the advantage of high resolution of electrospray printing, eliminates the problems of secondary positioning errors such as transfer printing, pasting, splicing and the like in the traditional method, avoids the problems of weak binding force and the like caused by an adhesive process, can ensure the accuracy of printing the micro-nano structure, realizes the in situ functionalization of functional materials, avoids the process steps such as displacement heat treatment and the like, improves the precision and the binding strength of the printed structure, and further improves the sensitivity and the stability of a device.
Claims (7)
1. The laser-assisted electrospray in-situ printing device is characterized by comprising an electrospray printing module and a laser functional processing module;
the electrospray printing module comprises a PC upper computer (1), a CCD camera (2), a high-voltage power supply (3), a micro-injection pump (4), a precise injector (5), a conduit (6), a spray needle (7) and a motion platform (9); the precision injector (5) is arranged on the micro-injection pump (4), the functional material ink is arranged in the precision injector, and a push handle of the micro-injection pump (4) pushes the precision injector (5) to accurately feed according to a certain flow; the spray needle (7) is connected with the precision injector (5) through a hose (6), and the functional material ink flows to the position of the spray needle (6); the positive output end of the high-voltage power supply (3) is connected with the spray needle (7), the negative end of the high-voltage power supply is connected with the printing flat plate (14), and a stable electric field is formed between the spray needle (7) and the printing flat plate (14); the functional material ink flows out of the spray needle (7) under the pushing of the micro-injection pump (4), and simultaneously forms a stable Taylor cone (10) at the opening of the spray needle (7) under the action of an electric field and ejects a stable fine jet flow (11) to form a printing layer on a substrate; the X axis and the Y axis are combined to form various motion paths, and the height between the spray needle (7) and the printing flat plate (14) is adjusted by the Z axis to meet various printing requirements; the PC upper computer (1) controls the CCD camera (2) through a USB interface, and the CCD camera (2) detects the stability of the Taylor cone (10) in the printing area and the printing path of the printing layer;
the laser functional processing module comprises a PC upper computer (1) and a laser energy device (8); the PC upper computer (1) controls the power, the scanning speed, the light spots and the frequency of the laser energy device (8); an irradiation probe of the laser energy device (8) and the spray needle (7) are fixed on a Z axis of the motion platform (9) together, and the repetition of a laser beam scanning track and a printing track is ensured;
the laser energy device (8) generates laser beams (12), the irradiated area instantly generates high temperature of 20-1000 ℃, different spot sizes, scanning speeds and scanning paths are adjusted according to different temperature requirements, and the heat effect of the lasers is utilized to complete the composite processing of the printing microstructure (13).
2. The laser-assisted electrospray in-situ printing apparatus according to claim 1, wherein the laser energy device (8) has a total laser power of 10W and a temperature range of 20-1000 ℃.
3. The laser-assisted electrospray in-situ printing apparatus according to claim 1 or 2, characterized in that the spot diameter of the laser beam (12) of the laser energy instrument (8) is 2-20 um.
4. Laser assisted electrospray in-situ printing device according to claim 1 or 2, characterized in that the laser beam (12) scanning speed is <1000 mm/s.
5. Laser-assisted electrospray in-situ printing device according to claim 3, characterized in that the laser beam (12) scanning speed is <1000 mm/s.
6. The laser-assisted electrospray in-situ printing device according to claim 1, 2 or 5, characterized in that the inner diameter of the needle (7) orifice is 150 um.
7. The laser-assisted electrospray in-situ printing device according to claim 4, characterized in that the inner diameter of the needle (7) orifice is 150 um.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811175787.XA CN109159422B (en) | 2018-10-10 | 2018-10-10 | Laser-assisted electrospray in-situ printing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811175787.XA CN109159422B (en) | 2018-10-10 | 2018-10-10 | Laser-assisted electrospray in-situ printing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109159422A CN109159422A (en) | 2019-01-08 |
| CN109159422B true CN109159422B (en) | 2020-09-11 |
Family
ID=64877784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811175787.XA Active CN109159422B (en) | 2018-10-10 | 2018-10-10 | Laser-assisted electrospray in-situ printing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109159422B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110834474A (en) * | 2019-11-29 | 2020-02-25 | 大连理工大学 | Printing device and method for dripping nano material three-dimensional structure on micro-hotplate |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105058786A (en) * | 2015-07-14 | 2015-11-18 | 大连理工大学 | Coaxial focusing electro stream printing method |
| CN107160685A (en) * | 2017-06-30 | 2017-09-15 | 青岛理工大学 | A kind of electric field driven melting jet deposition 3D printing device and its method of work |
| CN107214945A (en) * | 2017-06-30 | 2017-09-29 | 青岛理工大学 | A kind of electric field driven jet deposition 3D printing device and its method of work |
| CN107321986A (en) * | 2017-06-30 | 2017-11-07 | 青岛理工大学 | The electric field driven jet deposition 3D printing device printed for high viscosity conductive material |
| WO2017208553A1 (en) * | 2016-05-31 | 2017-12-07 | 株式会社日立製作所 | Additive manufacturing device |
| CN107718531A (en) * | 2016-08-11 | 2018-02-23 | 苏州工业园区新国大研究院 | Electrofluid injection apparatus and the method for printing three dimensional biological support |
| CN107932894A (en) * | 2017-12-22 | 2018-04-20 | 青岛理工大学 | A kind of high accuracy electric field driven jet deposition 3D printer and its method of work |
| JP2018103151A (en) * | 2016-12-28 | 2018-07-05 | セイコーエプソン株式会社 | Liquid discharge device |
-
2018
- 2018-10-10 CN CN201811175787.XA patent/CN109159422B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105058786A (en) * | 2015-07-14 | 2015-11-18 | 大连理工大学 | Coaxial focusing electro stream printing method |
| WO2017208553A1 (en) * | 2016-05-31 | 2017-12-07 | 株式会社日立製作所 | Additive manufacturing device |
| CN107718531A (en) * | 2016-08-11 | 2018-02-23 | 苏州工业园区新国大研究院 | Electrofluid injection apparatus and the method for printing three dimensional biological support |
| JP2018103151A (en) * | 2016-12-28 | 2018-07-05 | セイコーエプソン株式会社 | Liquid discharge device |
| CN107160685A (en) * | 2017-06-30 | 2017-09-15 | 青岛理工大学 | A kind of electric field driven melting jet deposition 3D printing device and its method of work |
| CN107214945A (en) * | 2017-06-30 | 2017-09-29 | 青岛理工大学 | A kind of electric field driven jet deposition 3D printing device and its method of work |
| CN107321986A (en) * | 2017-06-30 | 2017-11-07 | 青岛理工大学 | The electric field driven jet deposition 3D printing device printed for high viscosity conductive material |
| CN107932894A (en) * | 2017-12-22 | 2018-04-20 | 青岛理工大学 | A kind of high accuracy electric field driven jet deposition 3D printer and its method of work |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109159422A (en) | 2019-01-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109366980B (en) | Laser-assisted electrospray in-situ printing manufacturing method | |
| CN107214945B (en) | A kind of electric field driven jet deposition 3D printing device and its working method | |
| WO2019178899A1 (en) | Conformal manufacturing device and method for complex curved electronic system | |
| US9796183B2 (en) | Multifunctional electrohydrodynamic inkjet printing device and printing method using the same | |
| WO2018177029A1 (en) | Electrojet 3d printing device and method based on combination of electric field and thermal field | |
| CN108656524A (en) | A kind of integrated nozzle electric field driven injection micro-nano 3D printing device and its working method | |
| CN104723678A (en) | Electro hydrodynamic preparation device and method for batch micro-droplets and micro-structures | |
| US10124602B2 (en) | Apparatuses and methods for stable aerosol deposition using an aerodynamic lens system | |
| CN106003733B (en) | 3D printing device and method based on electromagnetic emission technique | |
| CN206653653U (en) | Compound material ultrasound deposits increasing material manufacturing device | |
| CN106985385A (en) | Compound material ultrasound deposits increasing material manufacturing device and method | |
| CN110509395B (en) | Method for printing curved piezoelectric ceramic by electrospray | |
| CN109159422B (en) | Laser-assisted electrospray in-situ printing device | |
| CN100569520C (en) | Collective transfer ink jet nozzle plate and make its method | |
| JP2012240216A (en) | Three-dimensional modeling apparatus, modeled object, and method for manufacturing modeled object | |
| CN113547739A (en) | 3D printer for preparing multi-material micro-nano composite film and working method thereof | |
| KR102537372B1 (en) | Injection devices with energy output devices and control methods thereof | |
| JP2010507812A (en) | Improvements to methods of manufacturing structural members | |
| CN206814393U (en) | A kind of electrical spraying device of the outside transmission based on micropin | |
| CN105773965A (en) | Inverted single-electrode electrofluid three-dimensional jet printing device | |
| Feng et al. | Development of a drop-on-demand micro dispensing system | |
| CN109092208A (en) | A kind of microlayer model manufacture system and manufacturing method | |
| CN110509394B (en) | Curved surface piezoelectric ceramic electrofluid jet printing forming device | |
| Cadarso et al. | Microdrop generation and deposition of ionic liquids | |
| JP2007163609A (en) | Pattern-forming method and droplet discharge unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |