CN109849338A - The full-color 3D printing method of 3DP and device based on air brushing colour shell - Google Patents
The full-color 3D printing method of 3DP and device based on air brushing colour shell Download PDFInfo
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Abstract
The full-color 3D printing method of 3DP and device based on air brushing colour shell belong to machinery-field of photoelectric technology.The hardware and software for supporting this method includes: movable machinery system, control system, ink feeding system, projection photosystem, photo-curing material and delamination software.Innovate the workflow of air brushing colour shell scheme or air brushing color table layered scheme, by carrying out air brushing on layer in cutting without powdering solidification for 3DP, print on demand is simultaneously cured into ink color shell, layer is cut in solidification on demand again, it moves in circles, so that cured transparent resin wraps up ink interlayer, true color thin layer finally is formed in the superficial of printing object, and realizes high-precision printing color three dimension printed product.
Description
[fields]
The invention belongs to machinery-field of photoelectric technology.It is specifically by means of multiinjector printing is a kind of new fast short-term training
Type technique (MJP:Multi jet modeling (pringting): multiple nozzle spraying technique), multiple nozzle spraying technique includes:
Color painting nozzle generates colored shell (thin) layer, then by 3DP mode sprays heap and solidify and wrap up the full-color 3D of the colour shell and beat
Print method and device.
[background technique]
Multiinjector printing (MJP:Multi jet modeling (pringting)) is a kind of new quick shaping process,
It is capable of providing smooth, high-resolution and the plastic part with complex geometric shapes.Whole process only needs UV lamp and photosensitive material
Material.
The technology originates from earliest: the 3D printing technique of three dimensional printing (3DP) technique.It is Massachusetts Institute Technology
What Emanual Sachs et al. was developed.
E.M.Sachs has applied for 3DP (Three-Dimensional Printing) patent, the patent right and wrong in 1989
One of the core patent of moulding material droplet ejection forming scope.
The 3DSystems brand in the U.S. later changes above-mentioned " non-shaped material droplet injection " are as follows: " photosensitive resin class
Moulding material droplet ejection, carry out successively similar printing molding in conjunction with photocuring ", thus generate another kind of colour print technology
And business type: such as the model of 3DSystems brand: 3600 type of ProJet.
The global history general situation of development of 3D printing:
U.S. doctor Charles W Hull in 1986 proposes to use laser irradiation photosensitive resin table in one piece paper
Face, and solidify the concept of production three-dimension object.Later, Charles WHull application related patents.Harles Hull is developed
First business 3D printing machine.Just there is within 1986 the blank of SLA, SLA is the molding skill for proposing and realizing earliest business application
Art.1988,3D printing industry giant 3D Systems company made First SLA in the world according to SLA forming technique principle
3D printer --- SLA250, and be commercialized.Since then, the type based on SLA forming technique is such as emerged rapidly in large numbersBamboo shoots after a spring rain,
Occur in succession.
In August, 2011, the engineers of University of Southampton develop first 3D printing aircraft in the world.
In November, 2012, Scotland scientist print artificial liver tissue with 3D printer for the first time using human body cell.
Formlabs team in 2012 raises platform in crowd and is proposed a 3D printer based on SLA forming technique ---
Form 1, and initiate crowd in the platform and raise to raise funds.
The 3D printing art work of a entitled " mind of ONO " is successfully auctioned in October, 2013, the whole world for the first time.2013 11
Month, the 3D printing company " solid is general " (SolidConcepts) of Texas, USA Austin designs and manufactures 3D printing gold
Belong to pistol.On January 16th, [2] 2017, scientific & technical corporation Bellus 3D can completely take high-resolution face 3D photo, these
Photo carries out the mask and real face that 3D printing goes out.
On April 7th, 2017, Germany's movement brand Adidas (adidas) are proposed first global sole 3D printing and are made
Sport footwear, plan to start to produce in batches for 2018, to cope with fast-changing fashion, produce more customed products.When
To today, the tissue of research and production SLA technology, enterprise, team are already numerous.Domestic associated mechanisms have the Central China University of Science and Technology,
Xi'an Communications University, logical, the intelligence base in Zhuhai west etc.；Foreign countries have 3DSystems company, EOS Corp., Z Corporation, CMET public
Department, D-MEC company, Teijinseiki company, Formlabs company etc..
3D manufacturing technology is mainly for the manufacture of multiple kinds of molds, model etc.；It can also pass through in the feed and other ingredients are added,
The wax-pattern in precision-investment casting is replaced with SLA prototype model.SLA technology forming speed is very fast, and precision is higher, but since resin is solid
Contraction is generated during changing, and is inevitably resulted from stress or is caused deformation.Therefore it is high to shrink small, quick solidifying, intensity for exploitation
Light-sensitive material be its development trend.
The company of table and product: 3D Systems company is earliest in the starting of SLA technology research field, the machine accordingly produced
Type is also numerous, such as: Projet1500, Objet3600 and the ProX 800 released on EuroMold.
There are western light passing solidification 3D printer, inscription exhibition MBot Form1 3D printer, ATSmake 3D printer etc. in the country.
3D printer, the plane that one F1 racing car normal printer used in daily life of successful print can be designed with printing calculator
Article, and so-called 3D printer and normal printer working principle are essentially identical, only printed material is somewhat different, commonly beats
The printed material of print machine is ink and paper, and 3D printer is provided with different " the printing material such as metal, ceramics, plastics, sand
Material ", is raw material true, can be " printed material " from level to level by computer control after printer is connect with computer
It stacks up, the blueprint on computer is finally become in kind.Generally, 3D printer is " can to print " to go out true 3D
A kind of equipment of object, such as one robot of printing, printing toy car, print various models, even food etc..Institute
It is the technical principle for having references to normal printer to be generically called " printer ", because the process of layering processing and ink-jet are beaten
It prints quite similar.This printing technique is known as 3D three-dimensional printing technology.[3]
There is many different technologies for 3D printing.They the difference is that in a manner of available material, and with
Different layer building establishment portion parts.3D printing common used material has nylon glass, polylactic acid, ABS resin, durability nylon material, stone
Cream material, aluminum material, titanium alloy, stainless steel, silver-plated, gold-plated, rubber type of material.
Principle technical overview:
Basic print procedure: the design process that Britain engineer " printing " goes out unmanned aerial vehicle 3 D-printing is: first passing through meter
The modeling of calculation machine modeling software, then the threedimensional model built up " subregion " is sliced at layer-by-layer section, thus instruct printer by
Layer printing.The Standard File Format to cooperate between design software and printer is stl file format.One stl file uses three
Edged surface comes the surface of approximate simulation object.The smaller surface resolution that it is generated of triangular facet is higher.PLY is a kind of by scanning production
The scanner of raw three dimensional file, VRML the WRL file generated are often used as the input file of full-color printing.
Slicing treatment: printer by reading the cross sectional information in file, use is liquid, the material of powdery or sheet will
These sections are printed layer by layer, then each layer cross section is glued together in various ways to produce an entity.It is this
The characteristics of technology, which is it almost, can produce the article of any shape.
The thickness (i.e. Z-direction) in the section that printer is got and the resolution ratio in the i.e. direction X-Y of in-plane are with dpi
(pixel per inch) or micron calculate.It is general with a thickness of 100 microns, i.e., 0.1 millimeter, also have part printer such as
There are also three-dimensional S ystems'ProJet series can print 16 microns of thin one layer for ObjetConnex series.And in-plane
It can then print with resolution ratio similar in laser printer.The diameter of " ink droplet " that prints is usually 50 to 100
Micron.A model is produced with conventional method and usually requires a few hours to a couple of days, according to the size and complexity of model
Depending on.And can will then shorten to several hours the time with the technology of 3 D-printing, certainly its be by printer performance and
Depending on the size and complexity of model.
Traditional manufacturing technology such as injection moulding can largely manufacture polymeric articles with lower cost, and 3 D-printing skill
Art then can be with faster, the more flexible and more inexpensive relatively small number of product of method production quantity.One Desktop Dimensions
Three-dimensional printer can meet the needs of designer or concept development group modeling.
Complete printing: the resolution ratio of three-dimensional printer is (possible in curved surface enough for most of applications
Can be relatively rough, as the sawtooth on image), the article that obtain higher resolution can be by the following method: first with working as
Preceding three-dimensional printer gets slightly bigger object, then the smooth " high-resolution in surface can be obtained past slightly surface polishing
Rate " article.
Some technologies can be printed using multiple material simultaneously.Some technologies can also use branch during printing
Object is supportted, for example just needs to use some thing (such as soluble east for being easy to remove when printing some objects for having projecting shape
West) it is used as supporter.
Below emphatically for the model of closely related 3DSystems brand of the invention: the work of 3600 type of ProJet
Principle is elaborated:
Essential structure includes with lower component:
Mechanical system: keeping and the mechanical device of adjustment lifting platform height；Including motor, Z axis guide rail, lead screw and sensor
Equal components.
Control system: using electronic technology, keeps whole system operation and control.
Structure housing: using metal plate, plastic or other material, and various components are fixedly mounted inside housings.
3600 type of ProJet is (MJP:Multi jet modeling (pringting)), the method which uses
With based on " laser galvanometer scanning solidify " and based on " LCD, DLP photocuring " SLA SLA (Stereo lithography
Appearance, that is, stereolithography apparatus method) technical principle 3D printer principle it is different, without sinking Dip shaped article
Reservoir and powdering, but work when printer use 3DP technology path stacked in multi-layers go out three-dimensional object, molding materials and branch
Timbering material is directly sprayed by nozzle；One layer of very thin liquid photosensitive resin is sprayed on lifting platform by nozzle, this coating is right
After be placed under ultraviolet light and carry out curing process.Lifting platform declines one section minimum of the height that layer is cut equal to one later, for
Next layer of stack operation, in cycles.The mouth of installation on the print head is divided into 2 classes: molding materials nozzle and backing material spray
Mouth, the backing material that wherein backing material nozzle is sprayed finally are removed from shaped article using solvent.
Each layer of spraying, the plane motion of 2 dimensions of print head, is to be realized by independent orthogonal X guide rail Y, 2 are led
Rail horizontal quadrature is placed, and is also possible to drive the biaxial hinge construction of 1 vertical moving axis by the connecting rod of 1 fixed vertical axis,
Obtain the in-plane displancement of print head.
General print head is synchronous to drive nozzle in 2, and the distance of molded surface of the nozzle away from printing slice is within 1 millimeter.
Due to multiple nozzle spraying be by object slice selectivity injection, thus the irradiation position of curing light source without
It needs to select, be illuminated on the face being entirely sliced with the ultraviolet light of large area, is cured so that being sprayed with material position to be solidified；
The thus light valve light source without regioselectivities such as laser scanning or DLP/LCD.Structure is simplified.
Finally, then carrying out the cleaning to object again after this technique printing is completed.Thus may be implemented one it is complete
Finally solidified by prototype after being taken out in resin at clean object, also need secondary operation certainly, usually we are first
By supporting point, that is, the additional structure of object that prints separate or with tool, solvent removal, then through polishing, plating,
Spray painting or coloring treatment are desired product.
[summary of the invention]
The object of the invention:
Over more than 30 years, SLA technology has developed many applications, and precision is greatly improved, and overall cost also declines gradually, but extremely
Until the present, the 3DP technology of no powdering can not all generate colour print object, because the ink of horn of plenty color is flowed from guarantee
Under the premise of diffusible, the physicochemical properties such as intensity, corrosion resistant can not be compatible with！
This defect of true color printing object can not be generated in order to solve current SLA technology all.It establishes in powder 3DP
Colored realization under technology, is mingled with bad material defect, due to UV ink, under the premise of ensureing rich in color, Wu Faman
Sufficient material it is excellent take into account characteristic；These factors lead to not in the 3DP scheme without using powder, are only used only and simply exist
The method that the molding materials of building go out the UV ink that fills spray solves: because the Reverse gantry surface of shaped article can not colour；It thus must
The technical thought of innovation and means must be taken to can be only achieved surface coloring and do not generate other adverse effects.
Feature of the present invention:
In conjunction with air brushing technology and the reasonable position for arranging colored shell, accessory configurations are simple, mature, reliable for operation and color
Color fine and smooth, color resolution height, it is often more important that the requirement to characteristics such as self-strength, the firmness of chromatic ink is greatly relaxed
?.
Key problem in technology are as follows:
The present invention is divided into: air brushing colour shell scheme or air brushing color table layered scheme.
Relative to the 3DP scheme of current no powdering, the multi-jet stacking successively printed has been used in technical principle
The nozzle of technology (MJP:Multi jet modeling pringting), multiinjector print head of the invention includes 3 class nozzles:
For generating colored shell colour ink nozzle, the molding materials nozzle for generating article body and the branch for generating support
The nozzle hole number of timbering material nozzle, every class nozzle is no less than 1.
The other important features and component of the printing equipment further include: lifting platform, structure member, electronic control system, tool
Body connection relationship are as follows: it keeps generating 3 controllable dimension relative motions between lifting platform and multiinjector print head by mechanical system, it is more
It is by perfusion tube (9) between nozzle print head (1) and color ink ink storage box (6), molding material-storing box (7) and support material-storing box (8)
It is connected；It is the cramped construction of fissionization installation or integrative installation technology between them.Other part temperatures control devices and electricity
Son control etc., is all routine techniques, without repeating.
This full-color Method of printing needs following necessary condition！They are:
At least need to possess 3 class material-storing boxs: color ink ink storage box (6), molding material-storing box (7) and support storage in component Configuration
Magazine (8).Or 2 class material-storing box: color ink ink storage box (6), molding material-storing box (7)；It can be by the molding materials of molding material-storing box (7)
Nozzle takes into account spraying support structure part, last mechanical removal support structure part, and saves and omit backing material nozzle etc., simplifies
The structure of multiinjector print head, but support difficulty is gone to increase.
Using in air brushing colour shell scheme, must contain in the material-storing box A (7) of molding materials: transparent material is shallow
The translucent material of color.And without requiring in this way, the material of random color can be used in air brushing color table layered scheme.
The workflow of air brushing colour shell scheme or air brushing color table layered scheme:
2 schemes have its common ground, as general 3D printing process, are needed in advance to object to be printed
CAD image data carry out 3 dimensions and model and be sliced, and form slice file, then be input in 3D printer, and start printer.
First: control system establishes the relative position of lifting platform and multiinjector print-head nozzle, so that nozzle and lifting platform
The distance of bottom cut layer height or so at 1-2；Then support is sprayed by the backing material nozzle of multiinjector print head again
Material carries out bottoming and cuts layer laying (often needing 1-8 layers).
Next begin to building the first of shaped article and cut layer: the layer of cutting for air brushing colour shell scheme includes: by
Peripheral enclosure wall, inner body part and the support portion quartile by backing material nozzle in needs of molding materials nozzle spraying spray support
Material completes the spraying process other than colored shell.And include for the layer of cutting of air brushing color table layered scheme: by molding
The inner body part and also needed by backing material nozzle in addition to other than the support portion quartile of needs sprays backing material that material nozzle sprays
Peripheral wall portion is sprayed, the spraying process other than colored shell is completed.And complete interim laying content.
Followed by the spraying process of deployment for completing photocuring and colored shell, a kind of situation is: first with colored ink spray
Mouth carries out the spraying of color inks to the slit gap between enclosure wall and inner body, then carries out photocuring processing to layer is entirely cut, though
The print time is so saved, but the strength injection of color inks easily generates impact to above-mentioned laying content.Another situation is that:
Content progress photocuring first is laid with to above-mentioned sprayed, it is recessed to the slit between enclosure wall and inner body to reuse colored ink nozzle
Photocuring processing is carried out again after the spraying of sunken gap progress color inks.And executing instruction for electronic control system takes
Of the invention: the workflow of air brushing colour shell scheme or air brushing color table layered scheme, shaped article are with air brushing colour
The shaped article of shell.
Complete above-mentioned 1 layer completely cut the printing of layer after, control system drives between lifting platform and multiinjector print-head nozzle
Away from 1 height for cutting layer is increased, the printing for all lower layers is ready.
It repeats the above process, 1 end layer by layer and the laying that renews, until the completion of entire shaped article.
Further, colored ink nozzle is carried out the spraying of color inks by we to the slit gap between enclosure wall and inner body
Be known as: spraying establish ink sublayer: enclosure wall and " the colored shell " of spraying, with a thickness of millimeter order.Due to color ink
The absorption characteristic of the color optical wavelength of water is different, is often not easy to be stacked excessively high thickness, this just needs thickness thinning, multilayer ink
Water sublayer is stacked into the thickness that object cuts layer, photocuring is being carried out to the ink sublayer of each spraying, if object cuts layer certainly
It is inherently very thin, just do not have to choose multilayer sublayer.
Sublayer and printing cut the quantity of layer than can be 1:1 relationship, print speed is most fast；2 layers and 2 layers or more of feelings
Under shape, print speed is declined.1 printing is cut for layer, sublayer is that the thickness of single layer is identical as layer is cut or sublayer
It is multiple-level stack, what the thickness that 1 layer or 2-10 layers of object was printed equal to 1 cuts thickness degree.
Further, air brushing color table layered scheme and air brushing colour shell scheme in addition to it is above-mentioned it is different other than, another difference
Be: the material in the material-storing box A (7) of molding materials, molding materials need not be chosen for transparent material or light color is translucent
Material is necessary condition, does not need to limit again to the color of material.
Further, and the print position of color inks is above the boundary that object cuts layer, and the side of layer is still cut with object
Boundary borders on, and after each layer is stacked up, the periphery " colored shell " of an entire shaped article of package will be formed, by structure
Support is built upon on colored shell, and colored shell will be impacted when removing, increases the requirement of the physicochemical property to colored ink,
Need that material is firm, is firmly combined with molding materials, non-fusibility is excellent in soda acid；On the other hand, it is contemplated that easy mobility matter,
Backing material is other than meeting general support purpose, it is also necessary to enclosure wall, enclosure wall and shaped article are established around shaped article
Distance it is lucky.
Beneficial effects of the present invention:
The realization for colouring universal color ink to three-dimensional object surface is provided theory by the proposition of colored shell mode
And the feasible foundation in method is easy to spray more suitable for that will integrate the ink that physicochemical property is not good enough and mixed characteristic is excellent
Reserved by molding materials and backing material, by peripheral enclosure wall, inner body part and the small recessed joint gap that is surrounded, and adopt
It takes shell mode to have the surface that can colour object backslash angle, can finally reach surface coloring and does not generate other adverse effects.
[Detailed description of the invention]
The full-color 3D printing device main member schematic diagram of 3DP of the Fig. 1 based on air brushing colour shell
The contrast schematic diagram of Fig. 2 air brushing colour shell scheme and air brushing color table layered scheme
Label declaration:
(1) multiinjector print head (can be integrated, without isolated ink-feeding tube and ink storage box)
(2) lead screw
(3) it is oriented to cylinder
(4) Z axis motor
(6) color ink ink storage box
(7) material-storing box is formed
(8) material-storing box is supported
(9) perfusion tube
(10) lifting platform
(11) elevating movement direction
(12) shaped article
(13) rotation axis is moved
(14) fixed bias circuit
(15) lifting platform prime coat
(16) lifting platform bracket
(17) solidify light
(18) structure housing
(19) backing material nozzle, colored ink nozzle, molding materials nozzle
(20) ultraviolet curing lamp
(21) inner body
(22) ink sublayer
(23) colored shell
(24) colored shell
(25) color content
(26) enclosure wall is supported
(27) transparent enclosure wall
(28) support structure
(29) empty in object
(30)
(31) enclosure wall office is cutd open
(32) enclosure wall office is cutd open
(33) prime coat
(34) layer is cut in printing
[most preferred embodiment]
Below in conjunction with attached drawing, with regard to preferred embodiment, the invention will be further described:
As shown in Figure 1:
General 3DP (no powdering) printer configuration schematic diagram currently on the market, the design feature of transformation of the invention is only
It is to increase color in the access of multiinjector print head (1) (can be integrated, without isolated ink-feeding tube and ink storage box)
Black ink storage box (6): printing type and program are different from.
Other essential structures are as follows: Z axis motor (4) drives lead screw (2) under the constraint of guiding cylinder (3) so that lifting platform
(10) vertical displacement is generated, as shown in elevating movement direction (11)；The horizontal plane displacement of multiinjector print head (1) is to pass through, solely
Vertical rotation fixed bias circuit (14) and movement rotation axis (13) are coordinated to generate.
Color ink ink storage box (6), molding material-storing box (7), support material-storing box (8) are printed via perfusion tube (9) towards multiinjector
Head (1), respectively by backing material nozzle, colored ink nozzle, molding materials nozzle (19) spraying printing.
Lifting platform bracket (16) carries shaped article (12), and lifting platform prime coat (15) is created on lifting platform bracket (16)
It carries between shaped article (12).
Ultraviolet curing lamp (20) issues solidification light (17) and irradiates per all layers, structure housing (18) and other components: such as
Mechanical system, control system etc. belong to well-known technique, no longer repeat.
It is as shown in Figure 2:
Left figure are as follows: the printing object of air brushing colour shell scheme and cut layer figure.Right figure are as follows: air brushing color table layered scheme is beaten
It prints object and cuts layer figure.
Layer (34) is cut it can be seen that (31) are cutd open by enclosure wall office shows from left figure printing, and colored shell (23) is by transparent enclosure wall
(27) it wraps up, color content (25) is expressed by the stacking of ink sublayer (22), and support structure (28) is the spraying of backing material nozzle
What backing material generated；Inner body (21) can be transparent material, be also possible to non-transparent material；Empty (29) are to save in object
About material is set.
After removing support structure (28) in this way, transparent enclosure wall (27) makes the color content (25) of colored shell (23) complete
Exposure, shows colour print object.
Layer (34) is cut it can be seen that (32) are cutd open by enclosure wall office shows from right figure printing, and colored shell (24) is supported enclosure wall
(26) it wraps up, color content (25) is expressed by the stacking of ink sublayer (22), and support structure (28) is the spraying of backing material nozzle
What backing material generated；Inner body (21) can be transparent material, be also possible to non-transparent material；Empty (29) are to save in object
About material is set.
After removing support structure (28) in this way, support enclosure wall (26) is still opaque but is same with support structure (28)
Material is also easily removed, so that the color content (25) of colored shell (23) is completely exposed, also shows colour print object
Part.
Prime coat (33) is that printing object is common means, it is therefore an objective to levelling and expanding area, to increase firmness.
Therefore: air brushing color table layered scheme and air brushing colour shell scheme in addition to it is above-mentioned it is different other than, another difference exists
In: the material in the material-storing box A (7) of molding materials, molding materials need not be chosen for transparent material or the translucent object of light color
Material is necessary condition, does not need to limit again to the color of material.
Claims (3)
1. the full-color 3D printing method of 3DP based on air brushing colour shell, the mechanical realization of corresponding 3D printer includes: lifting
Platform, electronic control system are at least equipped with 3 class material-storing boxs: color ink ink storage box (6), molding material-storing box (7) and support storage in configuration
Magazine (8) at least needs 2 class material-storing boxs: color ink ink storage box (6), molding material-storing box (7), by the molding of molding material-storing box (7)
Substance nozzle takes into account spraying building support section, and feature is that in using air brushing colour shell scheme, molding materials
Material-storing box A must be contained in (7): transparent material or the translucent material of light color；And in air brushing color table layered scheme woth no need to
It asks in this way, the material of random color can be used；The workflow of air brushing colour shell scheme or air brushing color table layered scheme,
2 schemes have its common ground, as general 3D printing process, need the CAD image number to object to be printed in advance
It is tieed up according to carry out 3 and models and be sliced, form slice file, then be input in 3D printer, and start printer；First: control system
It unites and establishes the relative position of lifting platform and multiinjector print-head nozzle, so that nozzle is at a distance from the bottom of lifting platform 1-2
It is a to cut layer height or so；Then bottoming is carried out by the backing material nozzle spraying backing material of multiinjector print head again and cuts layer paving
If next beginning to building the first of shaped article cuts layer: the layer of cutting for air brushing colour shell scheme includes: by molding
Peripheral enclosure wall, inner body part and the support portion quartile by backing material nozzle in needs of material nozzle spraying spray backing material,
Complete the spraying process other than colored shell.And include for the layer of cutting of air brushing color table layered scheme: being sprayed by molding materials
The inner body part and also need to spray in addition to other than the support portion quartile of needs sprays backing material by backing material nozzle that mouth sprays
Peripheral wall portion is applied, the spraying process other than colored shell is completed；Followed by completing photocuring and colored shell
Process of deployment is sprayed, a kind of situation is: color ink first being carried out to the slit gap between enclosure wall and inner body with colored ink nozzle
The spraying of water, then photocuring processing is carried out to layer is entirely cut；Another situation is that: content progress first is laid with to above-mentioned sprayed
Photocuring, after reusing the spraying that colored ink nozzle carries out color inks to the gap of the slit recess between enclosure wall and inner body
Photocuring processing is carried out again；Complete above-mentioned 1 layer completely cut the printing of layer after, control system drives lifting platform and multiinjector to print
The spacing of head nozzle increases by 1 height for cutting layer, and the printing for all lower layers is ready；It repeats the above process, 1 end layer by layer
And the laying renewed, until the completion of entire shaped article.
2. the full-color 3D printing device of 3DP based on air brushing colour shell, system composition include: lifting platform, structure housing and electricity
Sub-control system；Specific connection relationship are as follows: printing head is mounted on for air brushing moulding material, support and color inks multiinjector
It can make in the mechanism of vertical parallel axis movement synthesis of 2 dimensional planes movement；Make lifting of lifting table under the drive of the motor；Its
It is characterized in that: being at least equipped with 3 class material-storing boxs: color ink ink storage box (6), molding material-storing box (7) and support material-storing box (8) in configuration
Or 2 class material-storing boxs: color ink ink storage box (6), molding material-storing box (7) are at least needed, by the molding materials nozzle of molding material-storing box (7)
Take into account spraying building support section, and electronic control system execute instruction take it is of the invention: air brushing colour shell scheme
Or the workflow of air brushing color table layered scheme, shaped article are the shaped article with air brushing colour shell.
3. according to claim 1 and air brushing colour shell described in 2 is by colored ink nozzle to narrow between enclosure wall and inner body
Gap carries out being known as the spraying of color inks: establishing ink sublayer；1 printing is cut for layer, sublayer is single layer
Thickness is identical as layer is cut or sublayer is multiple-level stack, and what the thickness that 1 layer or 2-10 layers of object was printed equal to 1 cuts thickness degree.
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| CN110599298A (en) * | 2019-08-27 | 2019-12-20 | 徐州启承文化经纪有限公司 | Interactive virtual reality culture art communication service system |
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