CN104690960A - 3d printing system - Google Patents
3d printing system Download PDFInfo
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- CN104690960A CN104690960A CN201310652698.0A CN201310652698A CN104690960A CN 104690960 A CN104690960 A CN 104690960A CN 201310652698 A CN201310652698 A CN 201310652698A CN 104690960 A CN104690960 A CN 104690960A
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- print system
- shower nozzle
- workbench
- curing materials
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Abstract
The invention discloses a 3D printing system which comprises a worktable, an ink box for storing a curing material, a sprayer head, a driving pump for conveying the curing material in the ink box to the sprayer head, and a high-pressure generator connected with the sprayer head, wherein the high-pressure generator enables the sprayed curing material to have charges. According to the 3D printing system, the high-pressure generator is connected with the sprayer head, so that liquid drops have positive charges and are split under the action of electric field, the size of the liquid drops is reduced, and the resolution ratio of the 3D printing system is improved; the ink liquid drops are arranged in the electric field, and besides gravity force, another driving force is provided for the liquid drops, so that the dripping track of the liquid drops is accurate, and the liquid material with large viscosity can be sprayed form the sprayer head.
Description
Technical field
The application belongs to 3D and prints field, particularly relates to a kind of 3D print system being provided with high pressure generator.
Background technology
3D printing technique is a kind of is that target material object sets up mathematical model by software based on digital technology, and model is divided into the printing section of a series of 2D, relies on numerical control molding system successively printing shaping, is finally accumulated as manufacturing technology in kind.To carry out processing and manufacturing by the machining such as mould, turnning and milling mode to raw material different from traditional manufacture, 3D prints manufacturing technology does not need complicated technique and various equipment just can produce the product of arbitrary configuration, mould loss can be reduced, avoid human error, reduce production cost and labour intensity.Therefore 3D manufacturing technology receives the extensive concern of people in recent years.
Current 3D manufacturing technology mainly contains: (1) fused glass pellet technology (FDM), by hot melt raw material heating and melting, extrude continuously from shower nozzle, the material cooled solidification of extruding part, material object is formed together with material clinkering above, this technology can print all thermoplastics and metal in theory, but because the fusing point of metal material is general all very high, from self heat resistance of 3D printing device and cost consideration, FDM is at present mainly as the forming technique of plastic material.(2) Selective Laser Sintering (SLS), dusty material is tiled on the table and strikes off, on the powder bed just spread, part section is scanned with the laser instrument of high strength, material powder is sintered together under the laser of high strength irradiates, obtain the cross section of part, reduce workbench, repeat the process spreading powder and sintering, accumulate material object, the laser generator of high strength is the part of the 3D printing device necessity based on SLS technology, causes these equipment all costly.(3) ink-jet technology, a kind of mode of production of similar SLS being German Voxeljet company and adopting, tile material powder on the table, goes out adhesive drop cap piece cross section, by dusty material absorption solidification together from nozzles spray; Another kind is the Polyjet technology of Objet company of Israel (now by U.S. Stratasys company merging), this technology is directly ejected into layer by layer from nozzle by liquid o photopolymerizable material to build pallet, every one deck o photopolymerizable material is cured with ultraviolet immediately, until parts complete after injected.
Ink-jet technology equipment compared with two kinds of technology is above simple, directly can use existing 2D inkjet printer head and primary drive parts; Energy consumption is low, just can make adhesive or photosensitive material curing molding under room temperature.But the development of ink-jet technology is also subject to the restriction of some factors, the large easily plug nozzle of viscosity of such as fluent material causes equipment loss, and the droplet size that the large liquid of viscosity is formed at nozzle place is also larger, pattern resolution reduces, and full-bodied adhesive is also not easy the powder bed permeating tiling in addition; And drop viscosity is too little, the shape sprawled after drippage is not easy to control, and object construction is slack and undisciplined.The material object of droplet size on inkjet printing also has impact, and droplet size is larger, and precision is poorer, and material object is more coarse; Otherwise droplet size is less, printer resolution is higher, material object is more careful, but print speed is slower, and the resolution ratio of current 3D ink jet printing device is 600dpi mostly, " ink droplet " diameter, at tens microns, still can not meet the demand of high-accuracy processing.In addition, traditional ink-jet technology is only by the drippage of GRAVITY CONTROL ink droplet, and the extraneous factors such as air flowing, interface wellability all can affect the degree of accuracy of cross section pattern, cause not predictable impact to object performance.
Summary of the invention
Object of the present invention provides a kind of 3D print system, solves the problem that in prior art, pattern resolution is low, print speed is slow.
For achieving the above object, the invention provides following technical scheme:
The invention discloses a kind of 3D print system, comprising:
Workbench;
Print cartridge, stores curing materials;
Shower nozzle;
Driving pump, is delivered to shower nozzle by the curing materials in print cartridge;
High pressure generator, is connected to described shower nozzle, and makes the curing materials sprayed with electric charge.
Preferably, in above-mentioned 3D print system, the operating voltage of described high pressure generator is greater than 0kV, is less than or equal to 60kV.
Preferably, in above-mentioned 3D print system, described curing materials is adhesive.
Preferably, in above-mentioned 3D print system, described 3D print system also comprises servo control mechanism, and described servo control mechanism is connected to described workbench and controls workbench three-dimensional motion, is also provided with powder-laying roller above described workbench.。
Preferably, in above-mentioned 3D print system, described curing materials is liquid photosensitive material, and described 3D print system also comprises the ultraviolet light generator causing described photosensitive material photocuring.
Preferably, in above-mentioned 3D print system, described 3D print system also comprises servo control mechanism, and described servo control mechanism is connected to described shower nozzle and controls shower nozzle three-dimensional motion.
Preferably, in above-mentioned 3D print system, described 3D print system also comprises the described electric field system moved downward with the curing materials of electric charge of driving.
Preferably, in above-mentioned 3D print system, described curing materials with positive charge, described workbench ground connection.
Preferably, in above-mentioned 3D print system, described 3D print system also comprises determining the navigation system of described shower nozzle relative to workbench horizontal and vertical position.
Preferably, in above-mentioned 3D print system, described 3D print system also comprises controller, and described controller is connected to described driving pump.
Compared with prior art, the invention has the advantages that: connect high pressure generator at shower nozzle place and make drop with positive charge, under electric field action, drop generation splitting, makes the smaller volume of drop, and the resolution ratio of 3D ink-jet print system is improved; Being placed in by ink-jet drop among electric field, is another driving force that drop provides except gravity, makes the drippage track of drop more accurate, and the fluent material of larger viscosity can be made also to be able to spray from shower nozzle.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present application or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, the accompanying drawing that the following describes is only some embodiments recorded in the application, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Figure 1 shows that the structural representation of 3D print system in first embodiment of the invention;
Figure 2 shows that the structural representation of 3D print system in second embodiment of the invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be described in detail the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite not making creative work, all belongs to the scope of protection of the invention.
embodiment 1
Shown in ginseng Fig. 1, in the first embodiment of the invention, 3D print system comprises print cartridge 11, driving pump 12, shower nozzle 13, high pressure generator 14, workbench 15, powder-laying roller 16, controller and navigation system.
Print cartridge 11 is in order to store the adhesive needed for 3D inkjet printing.Adhesive is the acrylate adhesive regulated with butyl acetate, and viscosity is at 0.4 ~ 0.5 Pa
●between s.
Be connected with tube connector 17 between print cartridge 11 and driving pump 12, driving pump 12 is for carrying the adhesive stored in print cartridge 11 to shower nozzle 13.
Adjustable high pressure generator 14 is connected with shower nozzle 13, makes the adhesive drop sprayed with positive charge.The operating voltage range of adjustable high pressure generator 14 is+12kV ~+15kV.
The size of adhesive is controlled by the control flow of driving pump and the voltage of high pressure generator.
Powder-laying roller 16 is for the powder raw material that tiles on workbench 15.Raw material are the nanometer ZnO powder that particle diameter is about 80 ~ 150nm.
Workbench 15 can realize three-dimensional motion under the effect of servo control mechanism, and the surface of workbench 15 is used for lay shaping required powdery starting material in kind, and is connected to the ground by wire.
Distance between shower nozzle 13 and workbench 15 is approximately 10 ~ 15cm.
Navigation system is for determining the horizontal and vertical position of shower nozzle 13 relative to workbench 15.
Controller is for the running of the flow and servo control mechanism that control driving pump 12.
Controller can comprise microprocessor (MCU), this MCU can comprise CPU (Central Processing Unit, CPU), read-only memory module (read-only memory, ROM), random memory module (random access memory, RAM), time block, digital-to-analogue conversion module (A/D converter) and plural I/O port.Certainly, controller also can adopt the integrated circuit of other form, as: application-specific IC (Application Specific Integrated Circuit, ASIC) or field programmable gate arrays (Field Programmable Gate Array, FPGA) etc.
embodiment 2
Shown in ginseng Fig. 2, in second embodiment of the invention, 3D print system comprises print cartridge 21, driving pump 22, shower nozzle 23, high pressure generator 24, workbench 25, ultraviolet light generator 26, controller and navigation system.
Print cartridge 21 is in order to store the liquid photosensitive material needed for 3D inkjet printing, and liquid photosensitive material is regulate epoxies photosensitive material with acetone, and its viscosity is between 0.65 ~ 0.7.
Be connected with tube connector 27 between print cartridge 21 and driving pump 22, driving pump 22 is for carrying the liquid photosensitive material stored in print cartridge 21 to shower nozzle 23.
Shower nozzle 23 is connected with servo control mechanism, and this servo control mechanism controls shower nozzle 23 three-dimensional motion.
Adjustable high pressure generator 24 is connected with shower nozzle 23, makes the photosensitive material drop sprayed with positive charge.The operating voltage range of adjustable high pressure generator 14 is+10kV ~+13kV.
The size of liquid photosensitive droplets of materials is controlled by the control flow of driving pump and the voltage of high pressure generator.
Ultraviolet light generator 26 is for causing the photocuring reaction of photosensitive material.
The surface of workbench 25 for the material object of the photosensitive material and solidification that carry sprinkler, and is connected to the ground by wire.
Distance between shower nozzle 13 and three-dimensional working platform 15 is approximately 10 ~ 12cm.
Navigation system is for determining the horizontal and vertical position of shower nozzle 23 relative to workbench 25.
Controller is for the running of the flow and servo control mechanism that control driving pump 22.
Controller can comprise microprocessor (MCU), this MCU can comprise CPU (Central Processing Unit, CPU), read-only memory module (read-only memory, ROM), random memory module (random access memory, RAM), time block, digital-to-analogue conversion module (A/D converter) and plural I/O port.Certainly, controller also can adopt the integrated circuit of other form, as: application-specific IC (Application Specific Integrated Circuit, ASIC) or field programmable gate arrays (Field Programmable Gate Array, FPGA) etc.
Be easy to it is contemplated that in order to apply downward electric field force to the drop of ejection, drop also can be electronegative, as long as change external electrical field direction.
In sum, connect high pressure generator at shower nozzle place and make drop with positive charge, under electric field action, drop generation splitting, makes the smaller volume of drop, and the resolution ratio of 3D ink-jet print system is improved; Being placed in by ink-jet drop among electric field, is another driving force that drop provides except gravity, makes the drippage track of drop more accurate, and the fluent material of larger viscosity can be made also to be able to spray from shower nozzle.
It should be noted that, in this article, the such as relational terms of first and second grades and so on is only used for an entity or operation to separate with another entity or operating space, and not necessarily requires or imply the relation that there is any this reality between these entities or operation or sequentially.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment comprising described key element and also there is other identical element.
The above is only the detailed description of the invention of the application; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the application's principle; can also make some improvements and modifications, these improvements and modifications also should be considered as the protection domain of the application.
Claims (10)
1. a 3D print system, is characterized in that, comprising:
Workbench;
Print cartridge, stores curing materials;
Shower nozzle;
Driving pump, is delivered to shower nozzle by the curing materials in print cartridge;
High pressure generator, is connected to described shower nozzle, and makes the curing materials sprayed with electric charge.
2. 3D print system according to claim 1, is characterized in that: the operating voltage of described high pressure generator is greater than 0kV, is less than or equal to 60kV.
3. 3D print system according to claim 1, is characterized in that: described curing materials is adhesive.
4. 3D print system according to claim 3, is characterized in that: described 3D print system also comprises servo control mechanism, and described servo control mechanism is connected to described workbench and controls workbench three-dimensional motion, is also provided with powder-laying roller above described workbench.
5. 3D print system according to claim 1, is characterized in that: described curing materials is liquid photosensitive material, and described 3D print system also comprises the ultraviolet light generator causing described photosensitive material photocuring.
6. 3D print system according to claim 5, is characterized in that: described 3D print system also comprises servo control mechanism, and described servo control mechanism is connected to described shower nozzle and controls shower nozzle three-dimensional motion.
7. 3D print system according to claim 1, is characterized in that: described 3D print system also comprises the described electric field system moved downward with the curing materials of electric charge of driving.
8. 3D print system according to claim 7, is characterized in that: described curing materials with positive charge, described workbench ground connection.
9. 3D print system according to claim 1, is characterized in that: described 3D print system also comprises determining the navigation system of described shower nozzle relative to workbench horizontal and vertical position.
10. 3D print system according to claim 1, is characterized in that: described 3D print system also comprises controller, and described controller is connected to described driving pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310652698.0A CN104690960A (en) | 2013-12-05 | 2013-12-05 | 3d printing system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310652698.0A CN104690960A (en) | 2013-12-05 | 2013-12-05 | 3d printing system |
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| CN104690960A true CN104690960A (en) | 2015-06-10 |
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| CN201310652698.0A Pending CN104690960A (en) | 2013-12-05 | 2013-12-05 | 3d printing system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107953544A (en) * | 2017-11-14 | 2018-04-24 | 西安交通大学 | A kind of three-dimensional fast shaping method and device based on electric field force |
| CN110879563A (en) * | 2019-12-31 | 2020-03-13 | 南京工程学院 | Control circuit of multi-axis linkage economical system and application of control circuit in FDM (frequency division multiplexing) -oriented system |
| CN114312091A (en) * | 2021-12-29 | 2022-04-12 | 深圳圣德京粤科技有限公司 | Method and device for printing solid ink on printing base surface, application and using method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107953544A (en) * | 2017-11-14 | 2018-04-24 | 西安交通大学 | A kind of three-dimensional fast shaping method and device based on electric field force |
| CN107953544B (en) * | 2017-11-14 | 2019-11-08 | 西安交通大学 | A kind of three-dimensional fast shaping method and device based on electric field force |
| CN110879563A (en) * | 2019-12-31 | 2020-03-13 | 南京工程学院 | Control circuit of multi-axis linkage economical system and application of control circuit in FDM (frequency division multiplexing) -oriented system |
| CN114312091A (en) * | 2021-12-29 | 2022-04-12 | 深圳圣德京粤科技有限公司 | Method and device for printing solid ink on printing base surface, application and using method |
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| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Pan Gebo Inventor after: Liu Wenguang Inventor after: Xiao Yan Inventor after: Su Guiming Inventor before: Pan Gebo Inventor before: Liu Wenguang Inventor before: Xiao Yan |
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Effective date of registration: 20161026 Address after: 215000 Suzhou City Industrial Park, the University of the lake alone, if the water area, No. 398, No. Applicant after: Suzhou Institute of Nano-Tech and Bionics (SINANO), Chinese Academy of Sciences Applicant after: Institute of Advanced Technology Address before: 215000 Suzhou City Industrial Park, the University of the lake alone, if the water area, No. 398, No. Applicant before: Suzhou Institute of Nano-Tech and Bionics (SINANO), Chinese Academy of Sciences |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150610 |