CN106626375A - Quick 3D printing device and quick printing method - Google Patents
Quick 3D printing device and quick printing method Download PDFInfo
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- CN106626375A CN106626375A CN201610863670.5A CN201610863670A CN106626375A CN 106626375 A CN106626375 A CN 106626375A CN 201610863670 A CN201610863670 A CN 201610863670A CN 106626375 A CN106626375 A CN 106626375A
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- printing
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- exposure
- material trough
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- 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
- B33Y10/00—Processes of additive manufacturing
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- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
Abstract
The invention discloses a quick 3D printing device and a quick printing method. The device comprises a base, an exposure mechanism, a control mechanism, a printing mechanism and a liquid containing mechanism, wherein the exposure mechanism and the control mechanism are arranged in the base; the printing mechanism and the liquid containing mechanism are arranged on the base; the printing mechanism comprises a module and a printing platform slidably mounted on the module; the liquid containing mechanism comprises a material tank used for containing a printing solution and a driving assembly used for driving the material tank to rotate; the bottom of the material tank is provided with a completely transparent bottom plate or a partially transparent bottom plate; the bottom plate is covered with a layer of transparent liquid film with the uniform thickness; an exposure port of the exposure mechanism corresponds to the printing platform and used for allowing exposure curing light to pass through the transparent material tank bottom and be directly irradiated onto the printing platform. The quick 3D printing device and the quick printing method provided by the invention has the characteristics that the printing speed is high, the precision is high, the service life is long, the size is small, and operation is easy.
Description
Technical field
The present invention relates to a kind of quick 3D printing device and printing speed method, belong to printing device technical field.
Background technology
3D printing device, also known as three-dimensional printer, is that one kind adopts accumulation manufacturing technology(That is RP technique)Machine
Device, its principle is that data and raw material are put in 3D printer, and machine is from level to level created product according to program.At present,
In print procedure, after the cured layer solidification of print platform terminates, print platform is required for rising conventional 3D printing device,
Make solidification layer surface depart from printing solution container bottom, the exposure curing for carrying out the second layer is then declined again.Print platform
Repeat to rise, decline and account for the 80% of whole printing process, even more many, it is slow to ultimately result in print speed, impact printing effect.
In view of this, the present inventor is studied this, specially develops a kind of quick 3D printing device and printing speed
Thus method, this case produces.
The content of the invention
It is an object of the invention to provide a kind of quick 3D printing device and printing speed method, fast with print speed, essence
Degree height, long service life, small volume and it is simple to operate the features such as.
To achieve these goals, solution of the invention is:
A kind of quick 3D printing device, including pedestal, exposure mechanism, the controlling organization being arranged in pedestal, and it is arranged on base
Printing mechanism and Sheng Ye mechanisms on seat, wherein, the printing mechanism includes that module, the printing being slidably mounted on module are put down
Platform, the Sheng Ye mechanisms include the material trough for holding printing solution, and the drive component for driving material trough to rotate,
The material trench bottom is fully transparent or the transparent base plate in subregion, is coated with a layer thickness on the base plate uniform
Transparent liquid film, the exposure mouth of exposure mechanism is corresponding with print platform, and the light for exposure curing passes through transparent material trough
Bottom direct projection print platform.
Preferably, the transparent liquid film adopts ionic liquid.Have between transparent liquid film and printing solution bright and clean
Interface, the cured layer of print platform can easily depart from transparent liquid film with the rotation of material trough.
Preferably, the ionic liquid density is more than 1.1g/cm3, light transmittance is more than 85%, non-volatility.
Preferably, the transparent liquid film thickness is less than or equal to 2mm.
Preferably, the logistics groove is circle.
Preferably, the exposure mechanism adopts projecting apparatus, the projecting apparatus exposure mouth to be located at material trough lower section;Or,
The exposure mechanism adopts LCD display device, the LCD display of the LCD display device(Expose mouth)Under material trough
Side.
Preferably, the projector projects are used for the purple light of printing solution solidification;The LCD display launch for
The purple light of printing solution solidification.
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 freely be rotated on bearing fixed seat, and then drive material trough to rotate on pedestal.
Preferably, the controlling organization is using microprocessor control, controlling organization respectively with exposure mechanism, printing mechanism
It is connected with Sheng Ye mechanisms, 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 print platform is slided up and down on module.
The printing speed method of above-mentioned quick 3D printing device, comprises the steps:
Step 1, controlling organization control exposure mechanism, printing mechanism, Sheng Ye mechanisms start working, and material trough uniform rotation is printed
Platform drops to material trench bottom, and now, print platform lower surface is individual layer with the spacing of material trough transparency liquid film upper surface
The thickness of printing, exposure mechanism projects projected image by dianegative and transparent liquid film to print platform, makes drop shadow spread
Interior printing solution solidifies and is pasted onto on print platform, and in the curing process, print platform at the uniform velocity rises or pause setting
Time at the uniform velocity rises again, the material trough uniform rotation or the uniform rotation again of pause setting time;
Step 2:Repeat step 1 prints the second layer, until print terminating.
As preferred:In the solidification process described in step 1, print platform at the uniform velocity rises or pause 0.1S-1S is even again
Speed rising, the material trough uniform rotation or pause 0.2S-1S uniform rotation again.
Preferably, speed is 0.2 ~ 5 rev/min during the logistics groove uniform rotation, when the print platform at the uniform velocity rises
Speed be 0.02 ~ 0.5 mm/second.
Compared with prior art, had using the quick 3D printing device and printing speed method of said structure following several
Advantage:
1st, in print procedure, logistics groove can uniformly rotate, and print platform can at the uniform velocity rise, and centre is without the need for other prolonged pauses
Or perseveration, the uncured time for accounting for 80% originally can be saved, printing effect is significantly increased, common 3D can be reached and beaten
The speed that 4 ~ 10 times of print machine;
2nd, using highdensity transparent liquid film, it is ensured that liquid film will not be produced in rotation process because of centripetal force surface
Ripple, while highdensity transparent liquid film can also make to form smooth interface between printing solution and liquid film, is easy to two
Person separates;
3rd, exposed using projecting apparatus, be capable of achieving rapid curing, and then improve print speed;Irradiated using LCD display, be capable of achieving
Large area, high-precision printing.
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 quick 3D printing device three-dimensional structure diagram of embodiment 1;
Fig. 2 is the material trough sectional view of embodiment 1;
Fig. 3 is the drive component and tridimensional structure chart of embodiment 1;
Fig. 4 is the top view of Fig. 3.
Specific embodiment
Embodiment 1
As shown in figure 1, a kind of quick 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 mechanisms 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 can at the uniform velocity rise.The control
Using microprocessor control, controlling organization is connected respectively with exposure mechanism 2, printing mechanism 3 and Sheng Ye mechanisms 4, for controlling for mechanism 3
Make the action of each mechanism.In the present embodiment, the exposure mechanism 2 adopts DLP projector, projecting apparatus exposure mouth to be located at material
The lower section of groove 51, the purple light that DLP projector is projected solidifies for printing solution, using projector projects, with higher contrast
Degree, therefore hardening time is short, printing effect is high.
The Sheng Ye mechanisms 5 include the roundel hopper 51 for holding printing solution, and for driving material trough 51
The drive component of rotation.As shown in Fig. 2 the bottom of the material trough 51 is fully transparent or the transparent base plate 511 in subregion,
Base plate 511 can be using glass or other all-transparent materials.The uniform transparent liquid of a layer thickness is coated with the base plate 511
State film 512, the transparent liquid film 512 adopts ionic liquid, the ionic liquid density to be more than 1.1g/cm3, and light transmittance is more than
85%, non-volatility, surface tension is little, immiscible with the printing solution such as photosensitive resin liquid.The thickness of transparent liquid film 512
Less than or equal to 2mm.Transparent liquid film 512 described in the present embodiment, density is more than water, in the low speed rotation of material trough 51,
Surface smoothness is very high, will not produce ripple, while ionic liquid can also make shape between printing solution 6 and liquid film 512
Into smooth interface, it is easy to both to separate.
The drive component includes turntable bearing 52, bearing fixed seat 53 and motor 54, and the material trough 51 is fixed
On turntable bearing 52, the bearing fixed seat 53 is fixedly mounted on above pedestal 1 on plate 11 by rotary base 55,
The motor 54 adopts the inner ring of gear motor, rolling bearing 52 to be provided with from gear 521, and gear motor is provided with master gear
541, by master gear 541 and the cooperation from gear 521, turntable bearing 52 is freely rotated on bearing fixed seat 53, enter
And drive material trough 51 to rotate on pedestal 1.
The impact faces plate 11 offers a through hole 12, and the exposure mechanism 2 is located at the lower section of through hole 12, exposure mechanism 2
Exposure mouth 21 it is corresponding with print platform 42, the light for exposure curing is straight by through hole 12, the transparent bottom of material trough 51
Penetrate print platform 42.
The printing speed method of above-mentioned quick 3D printing device, comprises the steps:
Step 1:First, printing solution is poured in logistics groove 51, while opening exposure mechanism 2 enters pre- Warm status;
Step 2, exposure mechanism 2 and printing mechanism 4 are started working, and the uniform rotation of material trough 51, print platform 42 drops to material
The bottom of groove 51, now, the thickness that the lower surface of print platform 42 is printed with the spacing of the upper surface of material trough transparency liquid film 512 for individual layer
Degree, projecting apparatus, to print platform projects images, makes the printing in drop shadow spread by dianegative 511 and transparent liquid film 512
Solution solidifies and is pasted onto on print platform 42, and in the curing process, print platform 42 at the uniform velocity rises, and the material trough 51 is at the uniform velocity
Rotate;During the logistics groove uniform rotation speed be 0.2 ~ 5 rev/min, the speed when print platform at the uniform velocity rises be 0.02 ~
0.5 mm/second.In print procedure, logistics groove can uniformly rotate, and print platform can at the uniform velocity rise, middle without the need for other long-times
Pause and perseveration, the uncured time for accounting for 80% originally can be saved, printing effect is significantly increased, can reach general
The speed that 4 ~ 10 times of logical 3D printer;
Step 3:Repeat step 2 prints the second layer, until print terminating.
Embodiment 2
Quick 3D printing apparatus structure described in the present embodiment is consistent with embodiment 1, the main distinction in the present embodiment, 3D printing
The printing speed method of device at the uniform velocity rises again in the solidification process described in step 2 after the pause 0.5S of print platform 42, described
Uniform rotation again after the pause 0.5S of material trough 51, the time of the pause of print platform 42 and material trough 51 is typically based on by printed matter
The cross section of product(That is cured layer area)And depending on the hardening time of printing solution, general print platform pause 0.1S-1S, institute
State material trough pause 0.2S-1S.When cured layer area is less, printing solution solidification it is very fast when, print platform 42 and material trough 51
Without the need for pausing, direct uniform motion is capable of achieving printing speed;But need when cured layer area is larger, printing solution solidification is slower
Pause a period of time, be on the one hand easy to printing solution to be back to the lower section of print platform 42, on the other hand leave and take to exposure mechanism 2
Hardening time.
Embodiment 3
Quick 3D printing apparatus structure described in the present embodiment is basically identical with embodiment 1, differs primarily in that the present embodiment institute
The exposure mechanism 2 stated adopts the LCD display of LCD display device, the LCD display device to be located under material trough as exposure mouth
Side.The principle of solidification of LCD display device:Using LCD display image-forming principle, under the driving of LCD display device, according to printing
There is selective transparent region on LCD display in image, under the irradiation of LCD display device ultraviolet source, LCD display
Images transparent region to ultraviolet light intercept reduce, in the region shown without image, ultraviolet light is blocked.It is aobvious through LCD
The ultraviolet light of display screen constitutes ultraviolet light image region, and it is molten that above-mentioned ultraviolet light is irradiated to printing through transparent material trough 51
Liquid, makes to produce curing reaction by the printing solution of ultraviolet light, forms cured layer, and the printing solution not being irradiated to still is protected
Hold liquid.Using LCD display be capable of achieving high accuracy show, such as resolution ratio be the pixels of 1280 X 768,12 inch display screen points
Battle array precision reaches 0.16X0.16mm, simultaneously as the ratio that LCD display can do is larger, and then can also carry out large area solidification;
Additionally, LCD display is imaged as directly contact shaping, figure deformation rate is low, and the Product Precision of printing is high.And the light of projecting apparatus
Line figure after multiple imaging len will occur optical skew, although deformation is very small, but printing precision is still deposited
Necessarily it is being short of.
The product form and style of above-described embodiment and schema and the non-limiting present invention, any art it is common
Appropriate change or modification that technical staff is done to it, all should be regarded as the patent category without departing from the present invention.
Claims (10)
1. a kind of quick 3D printing device, it is characterised in that:Including pedestal, exposure mechanism, the controlling organization being arranged in pedestal,
And the printing mechanism that is arranged on pedestal and Sheng Ye mechanisms, wherein, the printing mechanism includes module, is slidably mounted on module
On print platform, the Sheng Ye mechanisms include the material trough for holding printing solution, and for driving material trough to rotate
Drive component, the material trench bottom is fully transparent or the transparent base plate in subregion, and on the base plate one is coated with
Layer transparent liquid film in uniform thickness, the exposure mouth of exposure mechanism is corresponding with print platform, and the light for exposure curing passes through
Transparent material trench bottom direct projection print platform.
2. a kind of quick 3D printing device as claimed in claim 1, it is characterised in that:The transparent liquid film adopts ionic liquid
Body;The transparent liquid film thickness is less than or equal to 2mm.
3. a kind of quick 3D printing device as claimed in claim 2, it is characterised in that:The ionic liquid density is more than
1.1g/cm3, light transmittance is more than 85%, non-volatility.
4. a kind of quick 3D printing device as claimed in claim 1, it is characterised in that:The exposure mechanism adopts projecting apparatus,
The projecting apparatus exposure mouth is located at material trough lower section;
Or, the exposure mechanism adopts the LCD display of LCD display device, the LCD display device to be located under material trough
Side.
5. a kind of quick 3D printing device as claimed in claim 4, it is characterised in that:The projector projects are used to print molten
The purple light of liquid solidification;The LCD display launches the purple light for printing solution solidification.
6. a kind of quick 3D printing device as claimed in claim 1, it is characterised in that:The drive component includes turntable shaft
Hold, bearing fixed seat and motor, the material trough is fixedly mounted on turntable bearing, the bearing fixed seat fixed installation
On pedestal, the turntable bearing is connected with motor, by the drive of motor, makes turntable bearing in bearing fixed seat
It is upper freely to rotate;The logistics groove is circle.
7. a kind of quick 3D printing device as claimed in claim 1, it is characterised in that:The controlling organization adopts microprocessor
Control, controlling organization is connected respectively with exposure mechanism, printing mechanism and Sheng Ye mechanisms, for controlling the action of each mechanism;Institute
State module and be provided with a longitudinal leadscrew, print platform is connected with leading screw, and leading screw is connected with spindle motor, driven by spindle motor
Leading screw is rotated, and then print platform is slided up and down on module.
8. a kind of printing speed method of quick 3D printing device as claimed in claim 1, it is characterised in that including following step
Suddenly:
Step 1, controlling organization control exposure mechanism, printing mechanism, Sheng liquid are started working, material trough uniform rotation, print platform
Material trench bottom is dropped to, now, print platform lower surface is individual layer printing with the spacing of material trough transparency liquid film upper surface
Thickness, exposure mechanism projects projected image, makes in drop shadow spread by dianegative and transparent liquid film to print platform
Printing solution solidifies and is pasted onto on print platform, and in the curing process, print platform at the uniform velocity rises or pause setting time
At the uniform velocity rise again, the material trough uniform rotation or the uniform rotation again of pause setting time;
Step 2:Repeat step 1 prints the second layer, until print terminating.
9. a kind of printing speed method of quick 3D printing device as claimed in claim 8, it is characterised in that:Step 1 institute
In the solidification process stated, print platform at the uniform velocity rises or pause 0.1S-1S at the uniform velocity rises again, the material trough uniform rotation or
Person's pause 0.2S-1S uniform rotation again.
10. a kind of printing speed method of quick 3D printing device as claimed in claim 8, it is characterised in that:The logistics
Speed is 0.2 ~ 5 rev/min during groove uniform rotation, and the speed when print platform at the uniform velocity rises is 0.02 ~ 0.5 mm/second.
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CN201610863670.5A CN106626375A (en) | 2016-09-29 | 2016-09-29 | Quick 3D printing device and quick printing method |
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CN201610863670.5A CN106626375A (en) | 2016-09-29 | 2016-09-29 | Quick 3D printing device and quick printing method |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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CN109795114A (en) * | 2019-03-01 | 2019-05-24 | 浙江大学 | Rotary more material photocuring 3D printing equipment |
CN109834936A (en) * | 2019-03-06 | 2019-06-04 | 华南理工大学 | A kind of 3D printing mechanism |
CN111421817A (en) * | 2020-02-29 | 2020-07-17 | 湖南大学 | Multi-axis photocuring 3D micro-nano machining equipment and method |
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CN104924621A (en) * | 2015-06-04 | 2015-09-23 | 西安交通大学 | Surface exposure forming device of high viscosity material |
CN105452958A (en) * | 2013-02-12 | 2016-03-30 | 卡本桑迪有限公司 | Method and apparatus for three-dimensional fabrication with feed through carrier |
CN206186374U (en) * | 2016-09-29 | 2017-05-24 | 浙江迅实科技有限公司 | Quick 3D printing device |
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- 2016-09-29 CN CN201610863670.5A patent/CN106626375A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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CN105452958A (en) * | 2013-02-12 | 2016-03-30 | 卡本桑迪有限公司 | Method and apparatus for three-dimensional fabrication with feed through carrier |
CN104924621A (en) * | 2015-06-04 | 2015-09-23 | 西安交通大学 | Surface exposure forming device of high viscosity material |
CN206186374U (en) * | 2016-09-29 | 2017-05-24 | 浙江迅实科技有限公司 | Quick 3D printing device |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109795114A (en) * | 2019-03-01 | 2019-05-24 | 浙江大学 | Rotary more material photocuring 3D printing equipment |
CN109834936A (en) * | 2019-03-06 | 2019-06-04 | 华南理工大学 | A kind of 3D printing mechanism |
CN111421817A (en) * | 2020-02-29 | 2020-07-17 | 湖南大学 | Multi-axis photocuring 3D micro-nano machining equipment and method |
CN111421817B (en) * | 2020-02-29 | 2021-07-02 | 湖南大学 | Multi-axis photocuring 3D micro-nano machining equipment and method |
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Application publication date: 20170510 |