CN101554778B - Method and device for light curring high-rate forming of surface entity - Google Patents
Method and device for light curring high-rate forming of surface entity Download PDFInfo
- Publication number
- CN101554778B CN101554778B CN2008100179336A CN200810017933A CN101554778B CN 101554778 B CN101554778 B CN 101554778B CN 2008100179336 A CN2008100179336 A CN 2008100179336A CN 200810017933 A CN200810017933 A CN 200810017933A CN 101554778 B CN101554778 B CN 101554778B
- Authority
- CN
- China
- Prior art keywords
- entity
- forming
- photosensitive resin
- led light
- light source
- 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.)
- Expired - Fee Related
Links
Images
Abstract
The invention relates to a method and a device for light curring high-rate forming of surface entity, wherein the method for light curring high-rate forming comprises the following steps: drawing a three-dimensional entity figure in a computer primarily, performing the stratified processing to the three-dimensional entity through a software, obtaining information of each section layer of the entity, converting the information of the section layers of the entity in the computer into corresponding optical images, irradiating the optical images on processing layers of photosensitive resin layer by layer by utilizing an LED light source set controlled by a control circuit, and completing the light curring forming of a light curring high-rate formed surface entity. The device comprises the LED light source set, an optical fiber bundle, a focus fiber lens set, an imaging lens, and the like. The invention has the advantages of high entity forming efficiency, good forming quality, simple structure of the device, low cost, long service life, convenient operation, low requirement on performance of the photosensitive resin, convenient popularization and application, and the like.
Description
Technical field
The invention belongs to the photocureable rapid shaping technical field, relate to a kind of method and device that utilizes the led light source group to realize light curring high-rate forming of surface entity.
Background technology
The photocureable rapid shaping technology is a kind of advanced process technology of making that development in recent years is got up, and has been widely used in numerous areas such as machinery, chemical industry, computer, bioengineering so far.What existing light-curing quick moulding method mainly adopted is the laser point scan mode, key work is that laser beam is pooled luminous point on processing plane, allow luminous point carry out pointwise by certain scanning pattern or line by line scan, its scan mode commonly used has three kinds: ACES
TMPhotocuring mode, STARWEAVE
TMPhotocuring mode and QuickCast
TMThe photocuring mode.There is a common problem in they is exactly that working (machining) efficiency is low, and Forming Quality is poor.
When adopting ACES
TMDuring the photocuring mode, the resin of entity inside can solidify under the laser point scan action fully, and solid strength is higher.But the epoxy resin that this mode does not shrink when only being suitable for polymerization, otherwise gross distortion will take place in entity when moulding, and also be the longest in three kinds of existing photocuring modes the process time of this curing mode.
STARWEAVE
TMThe photocuring mode according to a series of grids that are distributed in prototype inside provide higher dimensional stability for the prototype of solidifying, but because the existence of grid makes the resin of entity inside to solidify fully, cause the intensity of entity to reduce; When post processing is solidified, the uncured resin polymerization reaction take place of entity inside, the entity volume contraction causes evenly or inhomogeneous deformation.
QuickCast
TMMethod is the outline of every layer of scanning earlier, carries out scanning filling along square or equilateral triangle path in entity then.This method exists equally that the entity internal resin can't solidify fully, solid strength difference and the big shortcoming of post processing curing deformation.
In addition, adopt laser point scanning photocureable rapid shaping mode because processing temperature is higher than room temperature, also can stress generated by defferent temp in the thermal balance process after processing and cause entity to produce distortion, influence crudy.
Summary of the invention
The objective of the invention is to the problem that prior art exists is solved, and then a kind of method of utilizing the led light source group to realize light curring high-rate forming of surface entity is provided, a kind of light curring high-rate forming of surface entity device that this method is implemented that is exclusively used in also is provided simultaneously.The time of adopting processing method of the present invention and device can shorten moulding is significantly also improved the crudy that is light-cured into rapid shaping effectively.
To achieve these goals, the forming method that the present invention adopts is a drawing three-dimensional solid pattern in computer at first, by software 3D solid being carried out layering handles, obtain each cross-sectional layers information of entity, utilize one group of led light source group of forming by many parallel led light sources that are provided with of control circuit control again, the cross-sectional layers information of entity in the computer is converted into corresponding optical imagery shines on the photosensitive resin machined layer, realize the whole photocuring moulding of face of a machined layer; Apply new liquid resin of one deck and strickling then again on the physical layer that is cured, shine this new photosensitive resin machined layer with aforesaid way, extremely whole entity shaping is finished so repeatedly.
An innovation scheme on aforementioned invention basis is after the cross-sectional layers information of entity is converted into corresponding optical imagery in computer by the led light source group, again by the respective optical image successively being shone on the photosensitive resin machined layer with conduction optical fiber, focusing fibre lens and the imaging len of the corresponding coupling of led light source group, realize the whole photocuring moulding of a forming surface, repeat above-mentioned steps again after on the resin bed that is cured, applying new liquid photosensitive resin, finish until whole physical treatment.
Light curring high-rate forming of surface entity device of the present invention comprises following assembly:
One group of led light source group of forming by many parallel led light sources that are provided with and controlling by the corresponding electric signal of control circuit, can control the bright of corresponding LED or go out by the signal of telecommunication during work, thereby the cross-sectional layers information of entity in the computer is converted into corresponding optical signal;
A branch of by the many fibre bundles formed of conduction optical fiber, an end of every optical fiber wherein each with the led light source group in a corresponding led light source coupling encapsulate connection, be used to transmit optical signal;
One group of focusing fibre lens group of forming by a plurality of focusing fibre lenses, wherein each focuses on fibre lens, and each connects with the other end coupling of a corresponding conduction optical fiber in the fibre bundle, and the light in the conduction optical fiber becomes approximate directional light output after focusing on fibre lens;
One secondary imaging len is used for the approximate directional light picture signal that focusing fibre lens group is sent is done suitably to shine the photosensitive resin machined layer after the adjustment.
Compare with existing laser scanning photocuring moulding method, the present invention has processing and forming efficient height, Forming Quality is good, device structure is simple, cost is low, the life-span is long, easy to operate, low to the photosensitive resin material performance requirement, be convenient to advantages such as popularization and application.Because in adopting process for photocuring of the present invention and device process, entity inside does not exist uncured resin or uncured resin to exist seldom, thereby the solid strength increase, the post processing curing deformation is little, and crudy improves; The whole photocuring moulding of the aspect of furthermore processing improves working (machining) efficiency greatly; Be that cold light source is processed because of what adopt in addition, processing temperature approaches room temperature, thereby the cooling strain of processing aftershaping spare entity is little.In a word, the present invention program's the working (machining) efficiency that is implemented in photocureable rapid shaping, economy, ecological property, energy conservation aspect all have breakthrough.
Description of drawings
Fig. 1 is the schematic diagram of the operation principle structure of device of the present invention.
Fig. 2 is the schematic diagram of luminous point square profile arrangement mode.
Fig. 3 is optical fiber and the work schematic diagram that focuses on fibre lens.
Fig. 4 overlooks to structural representation for focusing fibre lens fixed disk.
Fig. 5 is for focusing on the fundamental diagram of fibre lens fixed disk.
Fig. 6 is a kind of schematic diagram that focuses on fibre lens and imaging len example.
Fig. 7 is the right view of Fig. 6.
Number in the figure is represented respectively: 1-LED light source group, and the 2-fibre bundle, 3-focuses on fibre lens group, 4-imaging len, the 5-processing plane, the 6-control circuit, the 7-computer, 8-focuses on the fibre lens fixed disk, 81-focuses on fibre lens fixed disk through hole, 9-forming room, 10-workbench.
The specific embodiment
Below with reference to drawings and Examples content of the present invention is described further, but concrete working method of the present invention and actual fabrication structure are not limited in following embodiment.
Referring to accompanying drawing, the member of light solidifying quick forming device of the present invention mainly comprises led light source group 1, fibre bundle 2 and imaging len system (Fig. 1), imaging len system wherein again by one group with fibre bundle 2 in respectively conduct focusing fibre lens the group 3 and one secondary imaging len 4 that the corresponding coupling of optical fiber connects and form.Led light source group 1 is made up of many parallel purple LED monomers that are provided with, the arrangement space of the arrangement mode view apparatus of each purple LED monomer and deciding, and its number is decided according to the shaping workpiece size, and its model is definite according to the curing sensitive wave length of light-cured resin.Connect by the encapsulation that is coupled between single-mode fiber in the conduction fibre bundle 2 and the LED, every conduction optical fiber is corresponding to a LED, and the fibre bundle of some conduction optical fiber compositions forms optical cables.The every conduction optical fiber other end is of coupled connections one and focuses on fibre lens, pass through in the work focusing on the selection of fibre lens, light in the fibre bundle 2 becomes approximate directional light output (Fig. 3) through focusing on fibre lens group 3, produces the optical image that is fit to the processing needs.
The course of work of having equipped the light solidifying quick forming device of above optical system is such: control circuit 6 is converted into corresponding LED light on and off in the corresponding signal of telecommunication and then the control led light source group 1 with the entity cross section information in the computer 7, the light that is sent by LED is sent to focusing fibre lens group 3 by fibre bundle 2, the light that focusing fibre lens group 3 sends fibre bundle 2 is adjusted into approximate directional light output, the optical imagery that forms cross section information is delivered to imaging len 4, shines the photosensitive resin machined layer.In the device, respectively focus on the mode of arranging by square profile as shown in Figure 2 between the fibre lens in the focusing fibre lens group 3 whole fixed disk is divided into several little squares, the center of circle that focuses on fibre lens is on each foursquare summit or the place, incenter, in order to the square length of side is diameter, is the circular light spot stack covering forming surface in the center of circle with square vertices or its incenter.Shine each circular light spot on the forming surface and promptly be the hot spot that light that a corresponding LED sends forms, stack by hot spot realizes the covering to whole forming surface, shine on the photosensitive resin machined layer of processing plane 5 after by imaging len 4 optical imagery being adjusted at last, and then finish the processing of profile integrally curing.
Focusing fibre lens group 3 in apparatus of the present invention is fixed on one and focuses on the fibre lens fixed disk 8, this fixed disk by a dimensional stability preferably rigid material make, be processed with several by the square arrangement mode on it and be used for fixing the through hole 81 (Fig. 4) that focuses on fibre lens.To focus on microlens fixed disk 8 and be contained on the crane, make it to do motion, with the optical imagery that needing to obtain perpendicular to imaging len 4 directions.Imaging len 4 is formed the processing space that seals with forming room 9.During shaping workpiece, behind the face integral solidifying of finishing a working lining, bed thickness of workbench 10 declines of carrying forming surface 5, the new liquid photosensitive resin of coating last layer on the physical layer that is cured, after the strickling, the sectional image information of the next layer of irradiation is finished the photocuring moulding of this new layer to new photosensitive resin shape layer.Extremely whole entity photocuring machines so repeatedly.
Retouch in the example that shows at Fig. 6 and Fig. 7, the focusing microlens is L to the distance of imaging len, and the diameter that focuses on microlens is D1, and the spot diameter of formation is D, and the divergence of beam angle is θ, D-D1=2d, and the relational expression that then can calculate L, D and D1 is:
2L×tanθ+D1＝D
After D1 determined, the operator only needs suitably to adjust L just can obtain suitable spot diameter D, to satisfy the processing needs.
Claims (1)
1. light curring high-rate forming of surface entity method, it is characterized in that: drawing three-dimensional solid pattern in computer at first, by software 3D solid being carried out layering handles, obtain each cross-sectional layers information of entity, utilize one group of led light source group of forming by many parallel led light sources that are provided with of control circuit control, the cross-sectional layers information of entity in the computer is converted into corresponding optical imagery shines on the photosensitive resin machined layer, realize the whole photocuring moulding of face of a machined layer; Apply new liquid resin of one deck and strickling then again on the physical layer that is cured, shine this new photosensitive resin machined layer with aforesaid way, extremely whole entity shaping is finished so repeatedly,
Wherein: after by the led light source group cross-sectional layers information of entity in the computer being converted into corresponding optical imagery, again by the respective optical image successively being shone on the photosensitive resin machined layer with conduction optical fiber, focusing fibre lens and the imaging len of the corresponding coupling of led light source group, realize the whole photocuring moulding of a forming surface
Saidly in the said method respective optical image is successively shone the whole photocuring moulding that realizes a forming surface on the photosensitive resin machined layer be meant: whole forming surface is divided into several little squares by focusing on the mode that luminous point that fibre lens sends arranges by square profile by focusing on fibre lens, in order to the square length of side is diameter, the center of circle with square vertices or inscribed circle is the circular light spot covering forming surface in the center of circle respectively, shine each round luminous point on the forming surface and promptly be the hot spot that light that a corresponding LED sends forms, realize covering whole forming surface by the hot spot stack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100179336A CN101554778B (en) | 2008-04-11 | 2008-04-11 | Method and device for light curring high-rate forming of surface entity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100179336A CN101554778B (en) | 2008-04-11 | 2008-04-11 | Method and device for light curring high-rate forming of surface entity |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101554778A CN101554778A (en) | 2009-10-14 |
| CN101554778B true CN101554778B (en) | 2011-05-11 |
Family
ID=41173132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100179336A Expired - Fee Related CN101554778B (en) | 2008-04-11 | 2008-04-11 | Method and device for light curring high-rate forming of surface entity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101554778B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104890248A (en) * | 2015-07-05 | 2015-09-09 | 冯圣冰 | SLA (stereo lithography apparatus)-3D (three dimensional) printer |
| US10717263B2 (en) | 2015-11-13 | 2020-07-21 | Paxis Llc | Additive manufacturing apparatus, system, and method |
| WO2017083734A1 (en) * | 2015-11-13 | 2017-05-18 | Paxis Llc | Additive manufacturing apparatus, system, and method |
| CN107443731A (en) * | 2017-01-23 | 2017-12-08 | 佛山市中山大学研究院 | Photocuring 3 D-printing device and its Method of printing based on ultraviolet LED micro display technology |
| CN107379526A (en) * | 2017-06-20 | 2017-11-24 | 西安交通大学 | A kind of precinct laser sintering method and device based on area source |
| KR102418166B1 (en) | 2018-04-06 | 2022-07-08 | 팍시스 엘엘씨 | Additive Manufacturing Apparatus, Systems and Methods |
| CN216782664U (en) * | 2021-10-14 | 2022-06-21 | 深圳市纵维立方科技有限公司 | Light source device and photocuring printer |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101151141A (en) * | 2005-03-30 | 2008-03-26 | Jsr股份有限公司 | Seterolithography method |
-
2008
- 2008-04-11 CN CN2008100179336A patent/CN101554778B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101151141A (en) * | 2005-03-30 | 2008-03-26 | Jsr股份有限公司 | Seterolithography method |
Non-Patent Citations (1)
| Title |
|---|
| JP特开平11-138645A 1999.05.25 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101554778A (en) | 2009-10-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101554778B (en) | Method and device for light curring high-rate forming of surface entity | |
| CN101563212A (en) | Polymer object optical fabrication process | |
| CN1928625A (en) | Fast forming laser diode energy source and device for same | |
| CN104401002A (en) | 3D printing-based curved microlens array manufacturing method | |
| CN102508324A (en) | Method and device for processing low-cost large Fresnel lens array | |
| CN201033467Y (en) | Ultraviolet light solidifying fast-shaping equipment | |
| CN107498856A (en) | A kind of light-cured resin based composites zero（Portion）The increasing material manufacturing method and system of part | |
| CN101537711B (en) | Quick molding method for energy following point scanning and photo-curing | |
| CN103978686B (en) | A kind of 3D applying coupling fiber Output of laser prints macromolecular material system | |
| WO2023045505A1 (en) | Laser conformal manufacturing method for three-dimensional curved surface of flexible sensor | |
| CN106863658A (en) | Wind-driven generator vane die manufacture method | |
| CN101301792B (en) | Light-curing quick moulding method based on LCD space light modulator and device | |
| KR20050085657A (en) | Lens array sheet and molding method | |
| US20210121984A1 (en) | Method of processing frp | |
| CN105710369A (en) | Device for manufacturing three-dimensional body layer by layer, control method and scanning method | |
| CN103753145A (en) | Method for manufacturing small molds | |
| KR100805674B1 (en) | Micro-stereolithography apparatus and method thereof | |
| CN207415992U (en) | A kind of controllable sextuple photocuring 3D printing system for squeezing out photosensitive resin | |
| CN101332649B (en) | Light-cured quick forming device and method based on reflection-type liquid crystal light valve | |
| CN205982694U (en) | Nearly uv light source system of multi -wavelength | |
| AU2021102727A4 (en) | Method and system for determining heat affected zone during the laser beam drilling ofhybrid composite | |
| Mo et al. | Design and fabrication of a double-sided aspherical Fresnel lens on a curved substrate | |
| JP2005305938A (en) | Method for manufacturing composite lens | |
| CN103022875B (en) | Double-side pump device for large-mode-field square clad optical fibers | |
| CN110320599B (en) | Method for preparing space optical waveguide |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110511 Termination date: 20150411 |
|
| EXPY | Termination of patent right or utility model |