CN107244069A - A kind of large format DLP 3 D-printing devices - Google Patents
A kind of large format DLP 3 D-printing devices Download PDFInfo
- Publication number
- CN107244069A CN107244069A CN201710252978.0A CN201710252978A CN107244069A CN 107244069 A CN107244069 A CN 107244069A CN 201710252978 A CN201710252978 A CN 201710252978A CN 107244069 A CN107244069 A CN 107244069A
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- China
- Prior art keywords
- dlp
- hopper
- arrays
- control systems
- pattern
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Classifications
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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
- B33Y50/00—Data acquisition or data processing for additive manufacturing
-
- 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
- B33Y50/00—Data acquisition or data processing for additive manufacturing
- B33Y50/02—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
Abstract
The invention discloses a kind of large format DLP 3 D-printing devices, including computer system, jacking system, feeding system and DLP control systems；Wherein computer system can carry out sectioning image processing to threedimensional model, and jacking system, feeding system and DLP control systems can be controlled, jacking system enables large scale profiled sheeting and DLP arrays to carry out vertical displacement movement, feeding system can be toward injecting light curing agent in hopper, DLP control systems can make DLP projected arrays project hopper bottom, and projection overlapping region is corrected and Fusion Edges, curing agent is molded into required large format pattern.
Description
Technical field
Filled the present invention relates to large scale rapid three dimensional printing forming field, more particularly to a kind of large format DLP 3 D-printings
Put.
Background technology
3 D-printing, is to be designed a model with Computerized three-dimensional as source, by the way that software hierarchy is discrete and numerical control molding system,
The special materials such as metal dust, ceramic powders, plastics, cell tissue are carried out successively using modes such as laser beam, hot melt nozzles
Accumulation is cohered, final superposition shaping, produces the technology of entity products.The technology is a kind of based on " discrete/accumulation " thought
Threedimensional model, a series of two-dimensional section figures is separated into using computer technology, then by growth form manufacturing technology in one direction
According to sectional view information, accumulation molding is successively printed.It is flat in the powder completed in advance using precise nozzle in each layer prints
Sprayed on face and bond solution, the powder bonding in jeting area is got up, then declined the powder plane printed certain high
Spend and in layer overlay powder above, prepare the printing of next sectional view.So circulation, successively bonds accumulation, until whole three
All sectional view Print Alls of dimension module are completed, and by post processing, are removed not glued powder, are formed solid threedimensional mould
Type type.
Raw material are shaped by the machining mode such as mould, turnning and milling with traditional manufacture, cut with most lifelong
Finished product is different, and 3D solid is changed into several two dimensional surfaces by 3 D-printing, is carried out by being superimposed to material process and successively
Production, greatly reduces the complexity of manufacture.This Digitized manufacturing pattern does not need complicated technique, does not need huge machine
Bed, do not need numerous manpowers, the part of any shape just can be generated directly from computer graphics data, makes to manufacture
To extend to wider array of production crowd scope.But three-dimensional printer of the prior art, major defect is the thing that can be printed
Body size is small, and precision is low, and shaping speed is slow.
The content of the invention
It is an object of the invention to provide a kind of large format 3D printer based on DLP principles, to solve in the prior art,
Printout size is small, the low problem of precision.
To solve the above problems, the present invention is adopted the following technical scheme that：
A kind of large format DLP 3 D-printing devices, including computer system, jacking system, feeding system and DLP controls system
System；It is characterized in that：The computer system is used to carry out image procossing to threedimensional model, and threedimensional model is longitudinally divided in order
A series of sectional views with thickness are cut into, the m × n small bore figures with thickness, and energy are horizontally divided into order
Certain correction process is carried out to each small bore edge；The jacking system is used to control large scale profiled sheeting and DLP arrays
Lifting；The feeding system is used to control shower nozzle toward injection optic-solidified adhesive, photosensitive resin in hopper；The DLP control systems
Hopper bottom is projected to by DLP arrays for some small bore figures for splitting the computer system, then transmitted
Enter in light curing agent and solidified；Also there is reponse system in the DLP control systems, the edge for adjusting each small image,
To keep the uniformity of image overall brightness.
Further, the DLP arrays include m × n DLP projecting cell, and each projecting cell is by the department of computer science
System splits small bore figure composition, obtains large format figure.
Further, the figure obtained by the computer system is respectively transmitted to each DLP by the DLP control systems
In the DMD of projecting cell, pattern identical pattern in corresponding and computer will be produced in each DMD, then by DLP projections
The collective effect of light source and lens group in unit, the DLP arrays can form complete with pattern in computer on working face
Complete consistent large format ultraviolet pattern.
Further, the DLP control systems can also by reponse system, the overlapping edge of each pattern is carried out into
Correction is adjusted to one step, seamless large format pattern splicing is realized.
Further, the hopper is located on the overhead support of DLP arrays, and for holding light curing agent, hopper bottom is adopted
Made with light transmissive material.
Further, the feeding system is connected with hopper, and feeding system is built-in with sensor, for detecting light in hopper
The amount of curing agent, light curing agent is supplemented when hopper light curing agent is not enough.
Large format projection photocurable 3 D-printing device of the invention based on DLP, with three-dimensional printer of the prior art
Compare, fast with shaping speed, printing precision is high, the big advantage of stamp with the size, and suitable for various intensity and difference
The light curing agent of material carries out Stereolithography.
Brief description of the drawings
Fig. 1 for the present invention without cloche when structural representation；
In figure：DLP control systems 1；Jacking system 2；DLP arrays 3；Feeding system 4；Hopper 5；Profiled sheeting 6；
Fig. 2 is the structural representation of DLP arrays；
Embodiment
In order to provide a better understanding of the technical solution of the present invention by those skilled in the art, below in conjunction with the accompanying drawings and embodiment
The present invention is described in further detail.
DLP projections are a more advanced and ripe shadow casting techniques, and DLP is " Digital Light Procession "
Abbreviation, as digital light handle, that is to say, that this technology will first signal of video signal is passed through digital processing, then light is thrown again
Shadow comes out.It is digital micromirror elements --- the DMD (Digital developed based on TI (Texas Instruments) company
Micromirror Device) complete the technology of viewable numbers presentation of information.
A kind of large format DLP 3 D-printing devices of the present invention include：DLP arrays, DLP control systems, computer system,
Profiled sheeting, feeding system, hopper, jacking system.
Wherein, the computer system carries out image procossing to threedimensional model first, and threedimensional model is longitudinally divided in order
A series of sectional view is cut into, the m × n small bore figures with thickness are horizontally divided into order.And can be to each small
Section edges carry out certain correction process.Then data line transfer to DLP control systems 1 is passed through.
Realize that DLP is projected using DLP arrays 3 and DLP control systems 1 in the present invention.
As shown in Fig. 2 the DLP arrays 3 in the present invention are made up of m × n DLP projecting cell.By computer system to three
M × n the profile graphics that dimension module progress image procossing is obtained will be respectively transmitted to each DLP projections by DLP control systems 1
In DMD in unit, pattern identical pattern in corresponding and computer will be now produced in each DMD.Thrown again by DLP
The collective effect of light source and lens group in shadow unit, DLP arrays can form complete with pattern in computer on working face
Consistent ultraviolet pattern.The DLP control systems 1 can also be carried out the overlapping edge of each pattern by reponse system
Further regulation correction, realizes seamless large format pattern splicing.
The hopper 5 is located on the overhead support of DLP arrays, and for holding various light curing agents, hopper bottom is using saturating
Luminescent material is made.Feeding system 4 is connected with hopper 5, built-in sensors, the amount of optic-solidified adhesive in hopper 5 can be detected, in hopper
5 optic-solidified adhesives can supplement optic-solidified adhesive in time when not enough.Profiled sheeting 6 can make vertical fortune using jacking system 2 above charging tray
It is dynamic.It is the shaping work area of three-dimensional printer between hopper 5 and profiled sheeting 6.
Before printing starts, profiled sheeting 6 drops to the position with the bottom unit height of hopper 5.Feeding system 4 will into
Template bottom is with injecting one layer of optic-solidified adhesive, the UV light permeability cast out when DLP arrays 3 in the space of the upper surface of hopper 5
When the bottom of hopper 5 is reached in liquid photocurable glue, this layer of glue starts to start solidification, most end form according to the shape of ultraviolet pattern
Into one layer and the duplicate solid of threedimensional model section pattern, while this layer of solid will be bonded at the bottom surface of profiled sheeting 6, do not irradiate
The place arrived still is liquid.
Complete DLP arrays 3 after one layer of solidification and stop projection, profiled sheeting 6 raises unit height, solid by jacking system 2
There to be gap with the upper bottom surface of hopper 5, feeding system 4 is filled light in the space of unit height and consolidated in time by detector gap
Change glue, at this moment DLP arrays 3 start optic-solidified adhesive into hopper and project next group of ultraviolet section pattern, liquid glue is just again
The solid of one layer of unit thickness can be solidified, two layers of solid is bonded to one, just solidification like this in layer is gone down, and will be molded
Solid into certain structure is sticked below profiled sheeting 6, as long as last take out formation solid for 6 times from profiled sheeting, is just completed whole
Individual 3 D-printing process.
In summary, the present invention is controlled by using DLP arrays and DLP, realizes the ultraviolet light pattern of large-breadth jointless splicing,
To carry out successively photocuring to optic-solidified adhesive, it is small to solve printing precision, the problems such as size is small, and shaped article speed is fast, tool
There is certain industrial utilization.
The announcement and teaching of book according to the above description, those skilled in the art in the invention can also be to above-mentioned embodiment party
Formula is changed and changed.Therefore, the invention is not limited in embodiment disclosed and described above, to the one of invention
A little modifications and changes should also be as falling into the scope of the claims of the present invention.Although in addition, being used in this specification
Some specific terms, but these terms are merely for convenience of description, do not constitute any limitation to the present invention.
Claims (6)
1. a kind of large format DLP 3 D-printing devices, including computer system, jacking system, feeding system and DLP controls system
System；It is characterized in that：The computer system is used to carry out image procossing to threedimensional model, and threedimensional model is longitudinally divided in order
A series of sectional views with thickness are cut into, the m × n small bore figures with thickness, and energy are horizontally divided into order
Correction process is carried out to each small bore edge；The jacking system is used for the lifting for controlling large scale profiled sheeting and DLP arrays；
The feeding system is used to controlling shower nozzle toward injecting optic-solidified adhesive in hopper；The DLP control systems are used for the computer
Some small bore figures that System Partition comes out project to hopper bottom by DLP arrays, then transmit progress in light curing agent
Solidification；Also there is reponse system in the DLP control systems, the edge for adjusting each small image, to keep image integrally bright
The uniformity of degree.
2. 3 D-printing device according to claim 1, it is characterised in that：The DLP arrays include m × n DLP projection
Unit, each projecting cell splits small bore figure by the computer system and constituted, and obtains large format figure.
3. 3 D-printing device according to claim 1, it is characterised in that：The DLP control systems will be calculated by described
The figure that machine system is obtained is respectively transmitted in the DMD of each DLP projecting cells, will be produced in each DMD corresponding with counting
Pattern identical pattern in calculation machine, then by the light source and the collective effect of lens group in DLP projecting cells, the DLP arrays
The large format ultraviolet pattern completely the same with pattern in computer is formed on working face.
4. 3 D-printing device according to claim 3, it is characterised in that：The DLP control systems can also pass through feedback
System, carries out further regulation correction to the overlapping edge of each pattern, realizes seamless large format pattern splicing.
5. 3 D-printing device according to claim 1, it is characterised in that：The hopper is located at the top branch of DLP arrays
On frame, for holding light curing agent, hopper bottom is made using light transmissive material.
6. 3 D-printing device according to claim 1, it is characterised in that：The feeding system is connected with hopper, feed
System is built-in with sensor, the amount for detecting light curing agent in hopper, and light curing agent is supplemented when hopper light curing agent is not enough.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710252978.0A CN107244069A (en) | 2017-04-18 | 2017-04-18 | A kind of large format DLP 3 D-printing devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710252978.0A CN107244069A (en) | 2017-04-18 | 2017-04-18 | A kind of large format DLP 3 D-printing devices |
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| Publication Number | Publication Date |
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| CN107244069A true CN107244069A (en) | 2017-10-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710252978.0A Pending CN107244069A (en) | 2017-04-18 | 2017-04-18 | A kind of large format DLP 3 D-printing devices |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109719954A (en) * | 2019-01-15 | 2019-05-07 | 北京科技大学 | A kind of DLP photocuring increasing material manufacturing surface quality improvement method |
| CN109968663A (en) * | 2019-04-23 | 2019-07-05 | 上海幻嘉信息科技有限公司 | A kind of projection split type 3D printing method and 3D printing device |
| CN111076711A (en) * | 2019-12-31 | 2020-04-28 | 常州市新创智能科技有限公司 | Cloth paving method for reducing errors of 3D projection bearing surface |
| CN111483140A (en) * | 2020-03-05 | 2020-08-04 | 上海莘临科技发展有限公司 | Method for placing parts in spliced surface exposure 3D printer |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105881916A (en) * | 2016-06-24 | 2016-08-24 | 吴建中 | 3D (three-dimensional) quick forming and splicing method and 3D quick forming and splicing device on basis of large layout |
-
2017
- 2017-04-18 CN CN201710252978.0A patent/CN107244069A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105881916A (en) * | 2016-06-24 | 2016-08-24 | 吴建中 | 3D (three-dimensional) quick forming and splicing method and 3D quick forming and splicing device on basis of large layout |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109719954A (en) * | 2019-01-15 | 2019-05-07 | 北京科技大学 | A kind of DLP photocuring increasing material manufacturing surface quality improvement method |
| CN109968663A (en) * | 2019-04-23 | 2019-07-05 | 上海幻嘉信息科技有限公司 | A kind of projection split type 3D printing method and 3D printing device |
| CN111076711A (en) * | 2019-12-31 | 2020-04-28 | 常州市新创智能科技有限公司 | Cloth paving method for reducing errors of 3D projection bearing surface |
| CN111076711B (en) * | 2019-12-31 | 2022-05-13 | 常州市新创智能科技有限公司 | Cloth paving method for reducing errors of 3D projection bearing surface |
| CN111483140A (en) * | 2020-03-05 | 2020-08-04 | 上海莘临科技发展有限公司 | Method for placing parts in spliced surface exposure 3D printer |
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Application publication date: 20171013 |
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