CN110303681A - A kind of vacuum ultraviolet photocuring 3D printing system - Google Patents
A kind of vacuum ultraviolet photocuring 3D printing system Download PDFInfo
- Publication number
- CN110303681A CN110303681A CN201910737778.3A CN201910737778A CN110303681A CN 110303681 A CN110303681 A CN 110303681A CN 201910737778 A CN201910737778 A CN 201910737778A CN 110303681 A CN110303681 A CN 110303681A
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- CN
- China
- Prior art keywords
- workbench
- motion module
- axis motion
- light source
- light
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
- B29C64/264—Arrangements for irradiation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/30—Auxiliary operations or equipment
- B29C64/364—Conditioning of environment
- B29C64/371—Conditioning of environment using an environment other than air, e.g. inert gas
-
- 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
-
- 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
- B33Y40/00—Auxiliary operations or equipment, e.g. for material handling
Abstract
The invention discloses a kind of vacuum ultraviolet photocuring 3D printing systems, including closed case, nitrogen system, light-source system, rack, rack ZaAxis motion module, hopper, workbench, workbench ZbAxis motion module and pressure test device；Light-source system, rack, rack ZaAxis motion module, hopper, workbench and workbench ZbAxis motion module is installed in closed case, and nitrogen system is placed in outside closed case, and light-source system is mounted on rack ZaIn axis motion module, workbench is mounted on workbench ZbIn axis motion module, workbench and workbench ZbAxis motion module is mounted in hopper；Light-source system includes light source, LCD screen, light source cooling system and glass container；The bottom surface of LCD screen is bonded with the plate upper surface of container.Solve the problems, such as that existing photocuring print system material cost is high, print speed is low, light source utilization rate is not high and printer service life is short.
Description
Technical field
The present invention relates to material increasing field more particularly to a kind of vacuum ultraviolet photocuring 3D printing systems.
Background technique
Rapid shaping technique (Rapid Prototyping Manufacturing) is also referred to as 3D printing technique, the skill
Art manufactures entity molding equipment according to the three-dimensional modeling data of object in a manner of being successively superimposed, it can overcome current biography
The special construction obstacle that system machining cannot achieve realizes the simplification production of arbitrarily complicated structure member.
In 3D printing technique, relatively conventional is Introduction To Stereolithography, utilizes the photosensitive tree of liquid condition
Polymerization reaction occurs under light illumination for rouge (UV), is irradiated with light source according to the cross sectional shape of entity to be solidified, makes liquid photosensitive
Superposition is accumulated after the layer-by-layer curing molding of resin, ultimately forms solidification entity.
Existing photocuring printing technique is divided into laser three-dimensional printing technology SLA (laser point light source solidification), DLP (projection
The solidification of instrument area source) and three kinds of LCD (liquid crystal surface photocuring).It wherein, is formed precision height the advantages of SLA technology, but due to it
Molding mode is laser point molding, is formed relative to face, and shaping speed is slow, low efficiency.And the advantages of DLP technology is light source benefit
It is fast with rate height, curing molding speed.But its disadvantage is similarly obvious, i.e., the ray machine service life is short, curing molding area is small, is unfavorable for big
The molding of size objects.If playing the operation of amplification using luxuriant and rich with fragrance mirror, it is uneven to will lead to pixel distribution, finally causes molding essence
Spend the problem of difference.
LCD technology solves the above problem to a certain extent, opposite SLA technology, speed can form faster, relatively
DLP technology, formed precision are relatively high.But likewise, the shortcomings that LCD technology is similarly obvious, LCD technology mostly uses LED
Lamp has very strong heat radiation as light source, this light source, and chronic exposure can be such that screen overheats, influence its service life.In addition,
In existing photocuring technology, needs to be added photoinitiator and cause curing reaction, and photoinitiator mostly has bio-toxicity, it is unfavorable
In environmental-friendly.In addition, on the one hand the addition of photoinitiator will increase the cost of printed material, on the other hand material also will increase
Viscosity, therefore the structure of scraper plate must not be added without in print system, so as to the added material in print procedure and strike off liquid level,
So that print procedure is complicated, print speed is reduced.
Summary of the invention
The purpose of the present invention is to provide a kind of vacuum ultraviolet photocuring 3D printing systems, beat to solve existing photocuring
Print the problem that system cost is high, environment is unfriendly, print speed is low and service life is short.
To solve the above problems, the present invention adopts the following technical scheme:
A kind of vacuum ultraviolet photocuring 3D printing system, which is characterized in that including closed case 1, nitrogen system 2, light-source system
7, rack 5, rack ZaAxis motion module 6, hopper 13, workbench 15, workbench ZbAxis motion module 14 and pressure test device
16；
The light-source system 7, rack 5, rack ZaAxis motion module 6, hopper 14, workbench 15 and workbench ZbAxis motion module
14 are installed in closed case 1, and nitrogen system 2 is placed in outside closed case 1；
The light-source system 7 is mounted on rack ZaIn axis motion module 6；
The workbench 15 is mounted on workbench ZbIn axis motion module 14；
The workbench 15 and workbench ZbAxis motion module 14 is mounted in hopper 13.
Preferably, vacuum ultraviolet photocuring 3D printing system according to claim 1, which is characterized in that the light
Source system 7 includes light source 8, light source cooling system 9, LCD screen 12 and container 11；
The light source 8 and LCD screen 12 are installed on inside container 11；
The light source 8 and LCD screen 12 are successively installed from top to bottom；
The light source is located at 11 upper end of container, and the bottom surface of the LCD screen 12 is bonded with the plate upper surface of container 13.
Preferably, the light source 8 is LED lamp panel, and LED lamp panel includes LED lamp bead and aluminum nitride ceramic substrate.
Preferably, the illumination wavelength of the LED lamp panel is 172 nm.
Preferably, the light source cooling system 9 includes water-cooling system 9 and cooling fin 10；
The water-cooling system 9 is installed on 11 upper surface of container and front surface；
The cooling fin 10 is installed on container left and right sides.
Preferably, the container 11 is transparent material, and transparent material is selected from optical quartz glass, acrylic or glass.
Preferably, the closed case 1 includes air inlet 3 and gas outlet 4；
The nitrogen system 2 is connect by the air inlet 3 of closed case 1 with closed case；
The gas-detecting device 16 is installed on cabinet.
The present invention has the advantage that
A kind of vacuum ultraviolet photocuring 3D printing system provided by the present invention, uses vacuum ultraviolet light source, illumination wavelength 172
Nm can directly be catalyzed moulding material and carry out curing reaction, and curing molding simultaneously obtains printed product, without adding photoinitiator, one
Aspect has saved the cost of material, on the other hand without using the photoinitiator substance for having pollution to environment, reduces pollution.
In addition, a kind of vacuum ultraviolet photocuring 3D printing system provided by the present invention, is not required to addition photoinitiator, reduces
The viscosity of light-sensitive material, mobility greatly increase, and setting blade structure is not needed in print system, and print system is worked
Journey is simple, and print speed is fast.
In addition, a kind of vacuum ultraviolet photocuring 3D printing system provided by the present invention, is not required to addition photoinitiator, reduces
The cost of material.
In addition, a kind of vacuum ultraviolet photocuring 3D printing system provided by the present invention, printing light source is ultraviolet source, phase
To other LCD light sources, the infrared light radiation of generation is lower, and caloradiance reduces, while it is cold that light source is equipped in light-source system
But system can absorb simultaneously heat transfer in time, reduce the temperature of light-source system, prolong the service life.
Detailed description of the invention
Fig. 1 shows a kind of system composition schematic diagrams of vacuum ultraviolet photocuring 3D printing system embodiment of the present invention.
In figure: 1. closed case；2. nitrogen system；3. air inlet；4. gas outlet；5. rack；6. rack ZaAxis
Motion module；7. light-source system；8. light source；9. water-cooling system；10. cooling fin；11. container；12. LCD screen；13.
Hopper；14. workbench ZbAxis motion module；15. workbench；16. gas-detecting device.
Specific embodiment
Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this explanation
Content disclosed by book is understood other advantages and efficacy of the present invention easily.
It should be clear that this specification structure depicted in this specification institute accompanying drawings, ratio, size etc., only to cooperate specification to be taken off
The content shown is not intended to limit the invention enforceable qualifications so that those skilled in the art understands and reads, therefore
Do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size are not influencing the present invention
Under the effect of can be generated and the purpose that can reach, it should all still fall in disclosed technology contents and obtain the model that can cover
In enclosing.Meanwhile cited such as "upper", "lower", " left side ", the right side in this specification ", the term of " centre ", be merely convenient to chat
That states is illustrated, rather than to limit the scope of the invention, relativeness is altered or modified, and is changing skill without essence
It is held in art, when being also considered as the enforceable scope of the present invention.
Embodiment 1
Referring to Fig. 1, a kind of vacuum ultraviolet photocuring 3D printing system, including closed case 1, nitrogen system 2, light-source system 7, machine
Frame 5, rack ZaAxis motion module 6, hopper 13, workbench 15, workbench ZbAxis motion module 14 and pressure test device 16；Institute
State light-source system 7, rack 5, rack ZaAxis motion module 6, hopper 13, workbench 15 and workbench ZbAxis motion module 14 is installed
In in closed case 1, nitrogen system 2 is placed in outside closed case 1；The light-source system 7 is mounted on rack ZaAxis motion module 6
On, the workbench 15 is mounted on workbench ZbIn axis motion module 14, the workbench 15 and workbench ZbAxis motion module 14
It is mounted in hopper 13；When carrying out print job, light-source system 7 can be with rack ZaAxis motion module 6 is mobile, and workbench 15 can be with
Workbench ZbAxis motion module 15 is mobile.
In embodiment, the light-source system 7 includes light source 8, light source cooling system 9, LCD screen 12 and container 11；It is described
Light source 8 and LCD screen 12 are installed on inside container 11, and the light source 8 and LCD screen 12 are successively installed from top to bottom；The light
Source is located at 11 upper end of container, and the bottom surface of the LCD screen 12 is bonded with the plate upper surface of container 12.
In embodiment, the light source 8 is LED lamp panel, and LED lamp panel includes LED lamp bead and aluminum nitride ceramic substrate；It is described
LED lamp bead is with matrix arrangement on aluminum nitride ceramic substrate.
In embodiment, the illumination wavelength of the LED lamp panel is 172 nm.
In embodiment, the light source cooling system 9 includes water-cooling system 9 and cooling fin 10；The water-cooling system 9 is installed on
11 upper surface of container and front surface；The cooling fin 10 is installed on container left and right sides.
In embodiment, the container 12 is transparent material, and transparent material is acrylic.
In embodiment, closed case 1 includes air inlet 3 and gas outlet 4, is located at the two sides of closed case 1；The nitrogen
Gas system 2 is connect by the air inlet 3 of closed case 1 with closed case, and nitrogen can be flowed out from nitrogen system 2, via closed box
The air inlet 3 of body 1 enters closed case 1, and the gas in closed case 1 is discharged by gas outlet 4.
In embodiment, the gas-detecting device 16 is installed on cabinet, for detecting the content of nitrogen in closed case.
When work, when needing to carry out print job, nitrogen system 2 starts to discharge nitrogen, and the nitrogen of discharge is via closed
The air inlet 3 of cabinet 1 enters closed case, the intracorporal air of closed box is discharged by gas outlet 4, while gas-detecting device 16
The content of gas in real-time detection closed case, when the oxygen content in closed case 1 is lower than 100 ppm, printer can be with
Start to carry out print job.
When carrying out print job, rack ZaLight-source system 7 is moved to apart from 13 liquid level upper surface of hopper by axis motion module 6
The distance of 5 mm, light source 8 generate the illumination of 172 nm, and light passes through LCD screen 12 for resinous wood in image projecting to hopper 14
The liquid level of material, while the water-cooling system 9 in light source cooling system is started to work, and absorbs the heat that light source 8 generates, in addition cooling fin
10 also can be absorbed the heat of the generation of light source 8；The resin material that the present invention uses is acrylate, is free of photoinitiator；172
Under the illumination of nm wavelength, acrylate can produce free radical and polymerization reaction occur, therefore under the illumination of 172 nm wavelength, propylene
Acid esters can carry out curing reaction printed product；Curing molding completes first layer printing, workbench ZbAxis motion module 14 drives
Workbench 15 is moved down into the position apart from two layers of molding flat thickness of resin material level, meanwhile, rack ZaAxis moves mould
Block 6 remains stationary, and the distance between light-source system 7 and resin material liquid level are maintained at 5 mm, starts second layer photocuring and beats
Print, and so on, until completing the printing of whole molding flats, complete product processing.
After product printing shaping, rack ZaAxis motion module 6 drives light-source system 7 to move up, subsequent workbench Zb
Axis motion module 14 drives workbench 15 to move up the liquid level for hauling out resin material, and nitrogen system stops working, closed case
Restore to normal temperature and pressure and open, obtains the product of printing shaping.
After vacuum ultraviolet photocuring 3D printing system provided by the present invention, by using the light of 172 nm wavelength
Source, polymerization reaction can be started and carry out printing shaping by not needing addition photoinitiator, compare other LCD technologies and DLP technology,
The cost of printed material is reduced, pollution of the material to environment is in addition also reduced；Using above setting light source, uniform illumination and intensity
Abundance, light direct irradiation to hopper surface carry out molding printing, and light source utilization rate is high, compares SLA technology and other DLP skills
Art, printing precision greatly improve；It is equipped with cooling system in light-source system, compares conventional LCD technology, the service life of printer
It is long；Using two sets of Z axis motion modules, the position for quickly adjusting light source and workbench is realized, be free of blade structure, forming process letter
Folk prescription just, substantially increases printing effect, it can be achieved that printing speed.
Although above having used general explanation and specific embodiment, the present invention is described in detail, at this
On the basis of invention, it can be made some modifications or improvements, this will be apparent to those skilled in the art.Therefore,
These modifications or improvements without departing from theon the basis of the spirit of the present invention are fallen within the scope of the claimed invention.
Claims (7)
1. a kind of vacuum ultraviolet photocuring 3D printing system, which is characterized in that including closed case (1), nitrogen system (2), light
Source system (7), rack (5), rack ZaAxis motion module (6), hopper (13), workbench (15), workbench ZbAxis motion module
(14) and pressure test device (16)；
The light-source system (7), rack (5), rack ZaAxis motion module (6), hopper (13), workbench (15) and workbench Zb
Axis motion module (14) is installed in closed case (1), and nitrogen system (2) is placed in closed case (1) outside；
The light-source system (7) is mounted on rack ZaIn axis motion module (6)；
The workbench (15) is mounted on workbench ZbIn axis motion module (14)；
The workbench (15) and workbench ZbAxis motion module (14) is mounted in hopper (13).
2. vacuum ultraviolet photocuring 3D printing system according to claim 1, which is characterized in that the light-source system (7)
Including light source (8), light source cooling system (9), LCD screen (12) and container (11)；
It is internal that the light source (8) and LCD screen (12) are installed on container (11)；
The light source (8) and LCD screen (12) are successively installed from top to bottom；
The light source is located at container (11) upper end, and the bottom surface of the LCD screen (12) is bonded with the plate upper surface of container (11).
3. vacuum ultraviolet photocuring 3D printing system according to claim 2, which is characterized in that the light source (8) is LED
Lamp plate, LED lamp panel include LED lamp bead and aluminum nitride ceramic substrate.
4. vacuum ultraviolet photocuring 3D printing system according to claim 3, which is characterized in that the light of the LED lamp panel
It is 172 nm according to wavelength.
5. vacuum ultraviolet photocuring 3D printing system according to claim 2, which is characterized in that the light source cooling system
Including water-cooling system (9) and cooling fin (10)；
The water-cooling system (9) is installed on container (11) upper surface and front surface；
The cooling fin (10) is installed on container left and right sides.
6. vacuum ultraviolet photocuring 3D printing system according to claim 2, which is characterized in that the container (11) is
Bright material, transparent material are selected from optical quartz glass, acrylic or glass.
7. vacuum ultraviolet photocuring 3D printing system according to claim 1, which is characterized in that the closed case (1)
Including air inlet (3) and gas outlet (4)；
The nitrogen system (2) is connect by the air inlet (3) of closed case (1) with closed case；
The gas-detecting device (16) is installed on cabinet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910737778.3A CN110303681A (en) | 2019-08-12 | 2019-08-12 | A kind of vacuum ultraviolet photocuring 3D printing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910737778.3A CN110303681A (en) | 2019-08-12 | 2019-08-12 | A kind of vacuum ultraviolet photocuring 3D printing system |
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| Publication Number | Publication Date |
|---|---|
| CN110303681A true CN110303681A (en) | 2019-10-08 |
Family
ID=68083399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910737778.3A Pending CN110303681A (en) | 2019-08-12 | 2019-08-12 | A kind of vacuum ultraviolet photocuring 3D printing system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111941834A (en) * | 2020-08-11 | 2020-11-17 | 中国科学院自动化研究所 | Light-cured 3D printing system and method suitable for microgravity environment |
| DE102019009065A1 (en) * | 2019-12-21 | 2021-06-24 | Bundesrepublik Deutschland, vertr. durch das Bundesministerium der Verteidigung, vertr. durch das Bundesamt für Ausrüstung, Informationstechnik und Nutzung der Bundeswehr | Increasing the strength of FDM prints |
-
2019
- 2019-08-12 CN CN201910737778.3A patent/CN110303681A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102019009065A1 (en) * | 2019-12-21 | 2021-06-24 | Bundesrepublik Deutschland, vertr. durch das Bundesministerium der Verteidigung, vertr. durch das Bundesamt für Ausrüstung, Informationstechnik und Nutzung der Bundeswehr | Increasing the strength of FDM prints |
| CN111941834A (en) * | 2020-08-11 | 2020-11-17 | 中国科学院自动化研究所 | Light-cured 3D printing system and method suitable for microgravity environment |
| CN111941834B (en) * | 2020-08-11 | 2021-10-08 | 中国科学院自动化研究所 | Light-cured 3D printing system and method suitable for microgravity environment |
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Application publication date: 20191008 |