CN106476114A - A kind of 3D printing device and Method of printing - Google Patents
A kind of 3D printing device and Method of printing Download PDFInfo
- Publication number
- CN106476114A CN106476114A CN201610863393.8A CN201610863393A CN106476114A CN 106476114 A CN106476114 A CN 106476114A CN 201610863393 A CN201610863393 A CN 201610863393A CN 106476114 A CN106476114 A CN 106476114A
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- printing
- material trough
- print platform
- scraping blade
- printing device
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/001—Rapid manufacturing of 3D objects by additive depositing, agglomerating or laminating of material
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
Abstract
The present invention discloses a kind of 3D printing device and Method of printing, described device includes pedestal, the exposure mechanism being arranged in pedestal, controlling organization, and the printing mechanism that is arranged on pedestal and Sheng Ye mechanism, wherein, the printing mechanism includes module, the print platform being slidably mounted on module, the Sheng Ye mechanism includes the material trough for holding printing solution, for the drive component for driving material trough to rotate, and for processing the doctor assemblies of printing solution, the material trench bottom is fully transparent or the transparent base plate in subregion, the exposure mouth of exposure mechanism is corresponding with print platform, the light of exposure curing is by transparent material trench bottom direct projection print platform.3D printing device of the present invention and Method of printing, can print high-viscosity printing solution, with print speed is fast, high precision, long service life, easy to operate the features such as.
Description
Technical field
The present invention relates to a kind of 3D printing device and Method of printing, belong to printing device technical field.
Background technology
3D printing device, also known as three-dimensional printer, is a kind of using accumulation manufacturing technology（That is RP technique）Machine
Device, its principle are that data and raw material are put in 3D printer, and machine is created product from level to level according to program.At present,
Conventional 3D printing device can only print the relatively low resin solution of viscosity in print procedure, all, when printing solution viscosity relatively
Gao Shi, the surface of printing solution be difficult to accomplish smooth, so as to causing printing precision low or cannot printing.
In view of this, the present inventor is studied to this, specially develops a kind of 3D printing device and Method of printing, this case
Thus produce.
Content of the invention
It is an object of the invention to provide a kind of 3D printing device and Method of printing, can print high-viscosity printing solution, tool
Have that print speed is fast, high precision, long service life, easy to operate the features such as.
To achieve these goals, the solution of the present invention is：
A kind of 3D printing device, including pedestal, is arranged on exposure mechanism in pedestal, controlling organization, and is arranged on pedestal
Printing mechanism and Sheng Ye mechanism, wherein, the printing mechanism includes module, the print platform being slidably mounted on module, institute
Shu Sheng liquid mechanism includes the material trough for holding printing solution, for the drive component for driving material trough to rotate, and is used for
The doctor assemblies of printing solution are processed, the material trench bottom is fully transparent or the transparent base plate in subregion, exposure machine
The exposure mouth of structure is corresponding with print platform, and the light of exposure curing is by transparent material trench bottom direct projection print platform.
Preferably, the doctor assemblies include support, scraping blade and adjuster, the support is fixedly mounted on pedestal,
Scraping blade is located in material trough, and the adjuster includes 2 prerotation vanes for being arranged on support lower surface, is provided with the inside of the prerotation vane
The gathering sill of longitudinal direction, scraping blade two ends are provided with a transverse connecting rod in gathering sill between the prerotation vane, scraping blade passes through bullet
Spring is connected with connecting rod, and scraping blade top is provided with adjusting nut, and the adjusting nut is rotated and adjusts spiral shell in the screw of support
Mother, can adjust the distance between scraping blade and material trough.
Preferably, arranging in 70 ~ 150 ° of angles between the print platform and scraping blade.
Preferably, being coated with flexible film on the dianegative of the material trough.
Preferably, the flexible film includes layer of silica gel and the Teflon film being sequentially coated on base plate from the bottom up
Layer.Flexible film is composited by double transparent material, ensure high transmission rate under in the case of, also have good elasticity and
Demoulding effect.
Preferably, the layer of silica gel thickness is 0.5 ~ 1.5mm, the Teflon thicknesses of layers is 0.1 ~ 0.2mm.
Preferably, the logistics groove is circle.
Preferably, the drive component includes turntable bearing, bearing fixed seat and motor, the material trough is fixed
On turntable bearing, the bearing fixed seat is fixedly mounted on pedestal, and the turntable bearing is connected with motor, is led to
Overdrive the drive of motor, turntable bearing can be freely rotated on bearing fixed seat, and then drives material trough to rotate on pedestal.
Preferably, the controlling organization using microprocessor control, controlling organization respectively with exposure mechanism, printing mechanism
It is connected with Sheng Ye mechanism, for controlling the action of each mechanism.
Preferably, the module is provided with a longitudinal leadscrew, print platform is connected with leading screw, leading screw and spindle motor phase
Even, drive leading screw to rotate by spindle motor, and then so that print platform is slided up and down on module.
Preferably, the projecting apparatus adopts DLP projector.
The Method of printing of above-mentioned 3D printing device, comprises the steps：
Step 1, controlling organization control exposure mechanism, printing mechanism, Sheng Ye mechanism start working, and adjust scraping blade and material trench bottom
Spacing, the printing solution in material trough is spread to a smooth printable layer, printable layer thickness by material trough uniform rotation, scraping blade
For a cured layer.
Step 2, print platform drop to material trench bottom, and now, print platform lower surface is thin with material trough transparent soft
The thickness that the spacing of film upper surface is printed for individual layer, material trough stop operating, and projecting apparatus is thin by dianegative and transparent soft
Film projects projected image to print platform, so that the printing solution in drop shadow spread is solidified and be pasted onto on print platform, solidification knot
Shu Hou, print platform rise, and material trough is rotated further；
Step 3, print platform drop to material trench bottom again, and scraping blade is by the region after being printed in material trough rotation process
Strike off, repeat step 2 carries out second layer printing, until print terminating.
As preferred：Material trough uniform rotation speed is 0.2 ~ 5 rev/min, and the material trough dead time is according to hardening time
Fixed.
3D printing device of the present invention can be used for the higher printing solution of viscosity, such as ceramic size etc..Print procedure
In, material trough uniform rotation, scraper are rotated with material trough and uniformly strike off printing solution, and can accurate adjustment scraper by adjuster
With material trough bottom spacing, it is ensured that each layer of cured thickness is uniformly accurate；In material trough rotation process, print platform can repeatedly on
Rise, decline（Scraper can ensure that print platform down position is all struck off）, print speed can be increased substantially.Print platform with
Arrange in 70 ~ 150 ° of angles between scraping blade, material trough can be made to be cured 360 degree of region random printing, prolongation material trough is transparent soft
The service life of property film.
The present invention is described in further detail below in conjunction with drawings and the specific embodiments.
Description of the drawings
Fig. 1 is the 3D printing device three-dimensional structure diagram of the present embodiment；
Fig. 2 is the material trough sectional view of the present embodiment；
Fig. 3 is drive component and the tridimensional structure chart of the present embodiment；
Fig. 4 is the top view of Fig. 3；
Fig. 5 is the doctor assemblies three-dimensional structure diagram of the present embodiment；
Fig. 6 is the doctor assemblies front view of the present embodiment.
Specific embodiment
As shown in figure 1, a kind of 3D printing device, including pedestal 1, the exposure mechanism 2, controlling organization being arranged in pedestal 1
3, and the printing mechanism 4 that is arranged on pedestal 1 and Sheng Ye mechanism 5, wherein, the printing mechanism 4 includes module 41, peace of sliding
The print platform 42 being mounted on module 41, in the present embodiment, the print platform 42 is by being vertically set on module 41
Leading screw 43 is realized sliding up and down, and print platform 42 is connected with leading screw 43, and leading screw 43 is connected with spindle motor, is driven by spindle motor
Dynamic leading screw 43 is rotated, and then drives print platform 42 to move, and in print procedure, print platform 42 can free rise/fall.Institute
State controlling organization 3 using microprocessor control, controlling organization 3 respectively with exposure mechanism 2, printing mechanism 3 and 4 phase of Sheng Ye mechanism
Even, for controlling the action of each mechanism.The exposure mechanism 2 includes projecting apparatus, and the projecting apparatus adopts DLP projector, throws
The exposure mouth 21 of shadow instrument is corresponding with print platform 42.
The Sheng Ye mechanism 5 includes the roundel hopper 51 for holding printing solution, for driving material trough 51 to rotate
Drive component, and for processing the doctor assemblies 56 of printing solution.As shown in Fig. 2 51 bottom of the material trough is complete
The transparent base plate 511 in transparent or subregion, base plate 511 can adopt glass, plastics or other all-transparent materials.Described
The uniform flexible film of a layer thickness is coated with base plate 511, and the flexible film includes to be sequentially coated on base plate from the bottom up
Layer of silica gel 512 and Teflon film layer 513 on 511, the present embodiment layer of silica gel 512 adopt PDMS film.Flexible film is by bilayer
Transparent material is composited, and in the case of ensureing under high transmission rate, also has good elasticity and demoulding effect.The silica gel
512 thickness of layer are 0.5 ~ 1.5mm, and 513 thickness of Teflon film layer is 0.1 ~ 0.2mm.The light of projecting apparatus exposure curing passes through
Transparent 51 bottom direct projection print platform 42 of material trough.
As shown in Figure 3-4, the drive component includes turntable bearing 52, bearing fixed seat 53 and motor 54, described
Material trough 51 is fixedly mounted on turntable bearing 52, and the bearing fixed seat 53 is fixedly mounted on pedestal 1 by rotary base 55
Above on plate 11, the motor 54 adopts the inner ring of gear motor, rolling bearing 52 to be provided with from gear 521, gear electricity
Machine is provided with master gear 541, by master gear 541 and the cooperation from gear 521, makes the turntable bearing 52 can be in bearing fixed seat 53
Upper freely rotate, and then drive material trough 51 rotate on pedestal 1.
As seen in figs. 5-6, the doctor assemblies 56 include support 561, scraping blade 562 and adjuster, and the support 561 is fixed
On plate 11 above pedestal 1, scraping blade 562 is located in material trough 51, and the adjuster includes to be arranged on support lower surface
2 prerotation vanes 563, the inner side of the prerotation vane 563 is provided with longitudinal gathering sill 564, and 562 two ends of scraping blade are arranged on gathering sill
In 564, a transverse connecting rod 565 between the prerotation vane 563, is provided with, scraping blade 562 is connected with connecting rod 565 by spring 567,
562 top of scraping blade is provided with adjusting nut 566, and in the present embodiment, the adjusting nut 566 adopts micrometer.The regulation spiral shell
In the screw of support, scraping blade 562 is withstood in bottom for female 566 upper ends, rotates adjusting nut 566, can adjust the height of scraping blade 562
Degree, and then adjust the distance between scraping blade 562 and material trough 51.It is in 70 ~ 150 ° of angles between the print platform 42 and scraping blade 562
Arrange, the angle of generally non-360 aliquot.So arrange, material trough 51 can be made to be cured 360 degree of region random printing,
Extend the service life of 51 transparent soft thin film of material trough.
The Method of printing of above-mentioned 3D printing device, comprises the steps：
Step 1, controlling organization 3 control exposure mechanism 2, printing mechanism 4, Sheng Ye mechanism 5 to start working, by adjusting nut 566
The spacing of scraping blade 562 and 51 bottom transparent soft thin film upper surface of material trough is adjusted, 51 uniform rotation of material trough, scraping blade 562 will
Printing solution in material trough 51 spreads to a smooth printable layer, and printable layer thickness is a cured layer；
Step 2, print platform 42 drop to 51 bottom of material trough, and now, 42 lower surface of print platform is transparent with material trough 51 soft
Property film upper surface the thickness that prints for individual layer of spacing, material trough 51 stops operating, and projecting apparatus is by dianegative and transparent
Flexible film projects projected image to print platform 42, solidifies the printing solution in drop shadow spread and is pasted onto print platform 42
On, after solidification terminates, print platform 42 rises, and material trough is rotated further, 51 uniform rotation speed of material trough generally 0.2 ~ 5
Rev/min, depending on 51 dead time of material trough is according to hardening time, generally 0.5 ~ 10 second；
Step 3, print platform 42 drop to 51 bottom of material trough again, and scraping blade 562 will be printed in material trough rotation process
Region afterwards strikes off, and repeat step 2 carries out second layer printing, until print terminating.
3D printing device described in the present embodiment can be used for the higher printing solution of viscosity, such as ceramic size etc., can print
Ceramic 3D article.In print procedure, 51 uniform rotation of material trough, scraper 562 are rotated with material trough 51 and uniformly strike off printing solution,
Ensure the flatness of cured layer, scraper 562 is while by its base of adjuster accurate adjustment and the spacing at 51 bottom of material trough, it is ensured that
Each layer of cured thickness is uniformly accurate；In 51 rotation process of material trough, print platform 42 can repeatedly rise, decline（Scraper can
All struck off with guarantee print platform down position）, print speed can be increased substantially.
Above-described embodiment and the product form and style of schema the non-limiting present invention, any art common
Appropriate change or modification that technical staff is done to which, all should be regarded as the patent category without departing from the present invention.
Claims (10)
1. a kind of 3D printing device, it is characterised in that：Including pedestal, exposure mechanism in pedestal, controlling organization is arranged on, and
The printing mechanism being arranged on pedestal and Sheng Ye mechanism, wherein, the printing mechanism includes module, is slidably mounted on module
Print platform, the Sheng Ye mechanism include the material trough for holding printing solution, for the driving group for driving material trough to rotate
Part, and for processing the doctor assemblies of printing solution, the material trench bottom is fully transparent or subregion is transparent
Base plate, the exposure mouth of exposure mechanism are corresponding with print platform, and the light of exposure curing is beaten by transparent material trench bottom direct projection
Print platform.
2. a kind of 3D printing device as claimed in claim 1, it is characterised in that：The doctor assemblies include support, scraping blade and
Adjuster, the support are fixedly mounted on pedestal, and scraping blade is located in material trough, and the adjuster includes to be arranged on support following table
2 prerotation vanes in face, are provided with longitudinal gathering sill on the inside of the prerotation vane, scraping blade two ends are arranged in gathering sill, the guiding
A transverse connecting rod is provided between piece, scraping blade is connected with connecting rod by spring, scraping blade top is provided with adjusting nut, the regulation
Nut rotates adjusting nut in the screw of support, adjusts the distance between scraping blade and material trough.
3. a kind of 3D printing device as claimed in claim 2, it is characterised in that：Between the print platform and scraping blade in 70 ~
150 ° of angles are arranged.
4. a kind of 3D printing device as claimed in claim 1, it is characterised in that：It is coated with the dianegative of the material trough
Flexible film.
5. a kind of 3D printing device as claimed in claim 4, it is characterised in that：The flexible film is included from the bottom up successively
Cover the layer of silica gel on base plate and Teflon film layer；The layer of silica gel thickness is 0.5 ~ 1.5mm, the Teflon thicknesses of layers
For 0.1 ~ 0.2mm.
6. a kind of 3D printing device as claimed in claim 1, it is characterised in that：The logistics groove is circle；The driving group
Part includes turntable bearing, bearing fixed seat and motor, and the material trough is fixedly mounted on turntable bearing, and the bearing is solid
Reservation is fixedly mounted on pedestal, and the turntable bearing is connected with motor, and by the drive of motor, turntable bearing can
Freely rotate on bearing fixed seat, and then drive material trough to rotate on pedestal.
7. a kind of 3D printing device as claimed in claim 1, it is characterised in that：The controlling organization adopts microprocessor control
System, controlling organization is connected with exposure mechanism, printing mechanism and Sheng Ye mechanism respectively, for controlling the action of each mechanism；Described
Projecting apparatus adopts DLP projector.
8. a kind of 3D printing device as claimed in claim 1, it is characterised in that：The module is provided with a longitudinal leadscrew, beats
Print platform is connected with leading screw, and leading screw is connected with spindle motor, is driven leading screw to rotate by spindle motor, and then so that print platform is existed
Slide up and down on module.
9. a kind of Method of printing of 3D printing device as claimed in claim 1, it is characterised in that comprise the steps：
Step 1, controlling organization control exposure mechanism, printing mechanism, Sheng Ye mechanism start working, and adjust scraping blade and material trench bottom
Spacing, the printing solution in material trough is spread to a smooth printable layer, printable layer thickness by material trough uniform rotation, scraping blade
For a cured layer.
Step 2, print platform drop to material trench bottom, now, on print platform lower surface and material trough transparent soft thin film
The thickness that the spacing on surface is printed for individual layer, material trough stop operating, projecting apparatus by dianegative and transparent soft thin film to
Print platform projects projected image, so that the printing solution in drop shadow spread is solidified and be pasted onto on print platform, after solidification terminates,
Print platform rises, and material trough is rotated further；
Step 3, print platform drop to material trench bottom again, and scraping blade is by the region after being printed in material trough rotation process
Strike off, repeat step 2 carries out second layer printing, until print terminating.
10. a kind of Method of printing of 3D printing device as claimed in claim 9, it is characterised in that：Material trough uniform rotation speed
Spend for 0.2 ~ 5 rev/min, depending on the material trough dead time is according to hardening time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610863393.8A CN106476114A (en) | 2016-09-29 | 2016-09-29 | A kind of 3D printing device and Method of printing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610863393.8A CN106476114A (en) | 2016-09-29 | 2016-09-29 | A kind of 3D printing device and Method of printing |
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ID=58268984
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| CN201610863393.8A Pending CN106476114A (en) | 2016-09-29 | 2016-09-29 | A kind of 3D printing device and Method of printing |
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| CN107297898A (en) * | 2017-08-01 | 2017-10-27 | 安徽原动力生产力促进中心有限公司 | A kind of 3D printer undercutter structure |
| CN107433330A (en) * | 2017-06-27 | 2017-12-05 | 西南交通大学 | Increasing material manufacturing method, the method and apparatus for preparing gradient film material |
| CN108943714A (en) * | 2017-05-18 | 2018-12-07 | 北京十维科技有限责任公司 | Storage device and photocuring printer for photocuring printer |
| CN108971488A (en) * | 2017-05-31 | 2018-12-11 | 通用电气公司 | Increase material simultaneously in real time and subtracts the device and method of material manufacture |
| CN111055495A (en) * | 2019-12-24 | 2020-04-24 | 浙江迅实科技有限公司 | High accuracy 3D printer |
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Application publication date: 20170308 |