CN110524875A - A kind of photocuring 3D printing device - Google Patents
A kind of photocuring 3D printing device Download PDFInfo
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- CN110524875A CN110524875A CN201910783708.1A CN201910783708A CN110524875A CN 110524875 A CN110524875 A CN 110524875A CN 201910783708 A CN201910783708 A CN 201910783708A CN 110524875 A CN110524875 A CN 110524875A
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- light component
- leaded light
- printing material
- printing
- photocuring
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- 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
- B29C64/10—Processes of additive manufacturing
- B29C64/106—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
- B29C64/124—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
- B29C64/129—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask
-
- 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
- B29C64/291—Arrangements for irradiation for operating globally, e.g. together with selectively applied activators or inhibitors
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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)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Optics & Photonics (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
Abstract
The present invention relates to a kind of photocuring 3D printing devices, including mould plate, curing model is combined on mould plate, it further include leaded light component, leaded light component includes being coupled into portion, optical waveguide and decoupling portion, decoupling portion is correspondingly arranged with mould plate, is coupled into portion and is projected to the light beam progress converting input optical waveguide conduction of injection to decoupling portion and by the conversion of decoupling portion from decoupling area between leaded light component and mould plate, can relatively move between mould plate and leaded light component.The present invention get rid of light source in the prior art and print material container between positional relationship it is relatively fixed, it can be realized light source and print the flexible laying of relative positional relationship between material container, the overall performance of device is improved, is conducive to promote printing effect and printing precision.
Description
Technical field
The invention belongs to the technical fields of 3D printing, more particularly to a kind of photocuring 3D printing device.
Background technique
3D printing as it is a kind of based on digital model file, by successively print construction object method, including
The photocurings mode such as SLA, DLP, LCD/LED.For example, by using UV (ultraviolet light) or the light curing resin layer layer-selective of visible light
It is formed by curing threedimensional model.Such as the 3D printing method based on DLP (Digital Light Processing) is according to three
The serial section pattern of dimension module and the face imaging beam formed project in photosensitive resin printing material the solidification for realizing single layer, such as
This solidifies stacking layer by layer and forms threedimensional model；SLA (Stereo Lithography Apparatus) is by laser beam by three
The serial section figure of dimension module is focused on photosensitive resin material by microscope group (such as lens or reflective mirror), by point to line to face
Cured layer is formed, such stacked in multi-layers forms threedimensional model.
Photocuring printer generally comprises the platform (or being mould plate) of light source and fixed model, and platform passes through driving machine
Structure (such as screw mandrel drive mechanism) carries out forming curing model far from light source movement with curing photosensitive resin printing material layer by layer.It is existing
In photocuring 3D printing, the light beam of light source irradiates photosensitive printing material, the position of light source and photosensitive printing material directly or by microscope group
Relationship is relatively fixed, if realizing the adjustment of light source position and photosensitive printing material relative position by lens, structure is complicated, at
This height, and be easy to be vibrated etc. and influence.In photocuring 3D printing device for using the light sources such as DLP, LED or LCD, due to
Light source is not easily adjusted with photosensitive printing material relation, is brought challenges to heat dissipation, to influence reliability and the service life of equipment.
In addition, light beam needs to be cured through light-transmitting plate irradiation printing material in the prior art, consider to keep light-transmitting plate
Light transmission factor, so that the intensity of light-transmitting plate is not readily available promotion, to be difficult the enough pressure by improving printing material to accelerate
Printing material flows into forming area to promote print speed.
In addition, printing material is the side by curing model between curing model and light-transmitting plate in existing photocuring printing
Clearance flow enters illumination forming area, model big for area or with internal structure, and the inflow path of printing material is long when printing, beats
Print material supplements low efficiency, the vacuum between curing model and light-transmitting plate is caused, to will affect print speed and precision.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of photocuring 3D printing device, gets rid of light source and printing material is held
Position between device is relatively fixed, promotes the stability of illumination, guarantees printing precision.
The technical solution adopted by the present invention to solve the technical problems is to provide a kind of photocuring 3D printing device, including mould
Template is combined with curing model on the mould plate, further includes leaded light component, and the leaded light component includes being coupled into portion, optical waveguide
With decoupling portion, the decoupling portion is correspondingly arranged with mould plate, and the portion that is coupled into is to the light beam progress converting input optical waveguide of injection
Conduction to decoupling portion and being converted by decoupling portion is projected from decoupling area between leaded light component and mould plate, the mould plate with lead
It can be relatively moved between optical assembly.
Light-transmitting plate is correspondingly provided between the decoupling area of the leaded light component and mould plate, the light-transmitting plate is equipped with lenticule battle array
Column, the light beam that the decoupling portion projects is after the transformation of the microlens array of light-transmitting plate from the molded surface interval of light-transmitting plate, expansion
It scatters and forms several light beam races between curing model and light-transmitting plate.
The back side of the leaded light component relative model plate, which is equipped with, reinforces backboard.
The back side of the leaded light component relative model plate is equipped with curing inhibitors storage tank, inside the curing inhibitors storage tank
Curing inhibitors are stored, the leaded light component is made of the material that can pass through curing inhibitors.
The curing inhibitors storage tank carries out pressure control by second pressure source.
The back side of the leaded light component relative model plate, which is equipped with, reinforces backboard, and the reinforcement backboard is using permeable solidification suppression
The material of preparation is made or is equipped with perforative curing inhibitors flowing hole.
The back side of the leaded light component relative model plate is equipped with the second printing material storage tank, and the decoupling area of the leaded light component is set
There is perforative first printing material flowing hole.
The second printing material storage tank carries out pressure control by first pressure source.
The back side of the leaded light component relative model plate, which is equipped with, reinforces backboard, and the reinforcement backboard is equipped with perforative second
Printing material flowing hole.
The path of the second printing material flowing hole is equipped with valve, and the valve connect with controller and passes through controller
It is controlled.
Pipeline is equipped with inside the reinforcement backboard, the channel interior is by coolant liquid or passes through heating liquid or laying
Heating wires.
The decoupling area of the leaded light component is equipped with the first printing material storage tank, first printing material towards the side of mould plate
Storage tank has sealing print chamber, and the curing model is located inside sealing print chamber, the sealing print chamber and first pressure source
Connection.
The side of decoupling area towards the mould plate of the leaded light component forms spaced boss.
The bottom that the leaded light component corresponds to groove between boss is equipped with light shield layer.
The leaded light component is coupled into portion equipped with several, and several portions of being coupled into pass through corresponding light source incident light respectively
Beam.
At least there is a light source in the multiple light source is that printing material solidification inhibits light source, and the printing material solidification inhibits
The light beam that light source issues forms anti-cured layer on the decoupling area surface of the leaded light component by conduction irradiation printing material.
Beneficial effect
First, by leaded light component conduction and outgoing beam carries out printing shaping, gets rid of light source in the prior art and beats
Positional relationship is relatively fixed between print material container, can be realized light source and print material container between relative positional relationship it is flexible
It lays.The positioning and installation of light source can either be simplified, so that light source is far from photosensitive printing material, while light passes inside optical waveguide
It is defeated, advantageously reduce influence of the ambient to printing precision；Relative position between decoupling area and printing material storage tank is fixed, light
Waveguide has certain elasticity, is conducive to the anti-vibration performance for improving printing equipment, promotes the stability of illumination, reduces external environment
Influence to printing precision guarantees printing precision.
Second, leaded light component can be combined by multiple areas that are coupled into multiple light sources, can be realized light beam merging,
Switching and combined application, in addition, using optical waveguide transmitting beam wavefront control can be realized to the light beam that decoupling area projects, because
This present invention can need the injection characteristic (including angle, position, intensity, type etc.) to light beam to carry out spirit according to practical printing
Control living.
Third can realize the injection of beam spacing, diffusion to the conversion of light beam by decoupling portion, form several light beams
Race, or by leaded light component be equipped with variable refractivity lens array light-transmitting plate in conjunction with, or by by leaded light component decoupling area at
Type surface is designed to spaced-apart bosses structure, so that the injection of beam spacing, diffusion, forms several light beam races, curing model and thoroughly
Printing material flow region is formed between tabula rasa or leaded light component.On the one hand, be conducive to reduce between curing model and light-transmitting plate
Bonded area reduces separation force, is conducive to improve printing effect, avoids curing model stress deformation；On the other hand, solidify
The printing material flow region that un-bonded area between model and light-transmitting plate or leaded light component is formed, can be in layer print procedure
The function of quickly supplementing printing material between curing model and light-transmitting plate or leaded light component is played, improves printing effect, simultaneously
It can be avoided between curing model and light-transmitting plate or leaded light component and generation when vacuum makes curing model be detached from light-transmitting plate occur
Stress it is excessive and deform, guarantee printing precision.
4th, light beam is conducted by leaded light component and carries out printing shaping, is avoided the need in leaded light component relative model plate
Back side installation light source, the components such as microscope group, leaded light component can be reinforced using backboard is reinforced, so that device overall structure
It is more stable, and then can be realized and pressurize to printing material, the pressure of printing material can be significantly increased, improve in layer print procedure
Printing material flows into the speed of forming area between curing model and leaded light component, promotes printing effect.In addition, by reinforcing backboard
The cooling or heating realized to leaded light component and printing material can be facilitated, guarantee suitable print temperature, be conducive to improve and beat
Efficiency is printed, equipment life is extended.
5th, the structure that can penetrate curing inhibitors can be set into leaded light component, due to leaded light component relative model
The back side of plate can not have to installation light source, the components such as microscope group, convenient for curing inhibitors are arranged at the back side of leaded light component, its at
Type surface forms anti-cured layer, on the one hand can be conducive to printing material to quickly flowing is mended between curing model and leaded light component
It fills, on the other hand advantageously reduces the separation force of curing model and leaded light component.
6th, the structure that can penetrate printing material can be set into leaded light component, and such as printing material flowing hole, printing material can
Supplement printing material directly is carried out to region between leaded light component and curing model by leaded light component, so that curing model difference position
The feed supplement set is advantageously implemented the synchronization feed supplement of curing model different location apart from roughly the same, gets rid of solid in the prior art
Change the problem that model periphery feed rate is fast, center feed rate is slow.On the one hand, it can greatly be promoted in layer print procedure
The supplement speed of printing material improves printing effect；Another aspect printing material pressure can act on curing model to curing model
Disengaging between leaded light component generates impetus, so that disengaging is eased and efficient, and advantageously reduces mould plate pair
The active force of curing model.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the embodiment of the present invention 1.
Fig. 2 is the structural schematic diagram of the embodiment of the present invention 2.
Fig. 3 is the structural schematic diagram of the embodiment of the present invention 3.
Fig. 4 is the structural schematic diagram of the embodiment of the present invention 4.
Fig. 5 is the structural schematic diagram of the embodiment of the present invention 5.
Fig. 6 is the structural schematic diagram of the embodiment of the present invention 6.
Fig. 7 is the structural schematic diagram of the embodiment of the present invention 7.
Fig. 8 is structural schematic diagram of the leaded light component in conjunction with reinforcement backboard in the embodiment of the present invention 7.
Fig. 9 is the structural schematic diagram that leaded light component tilts aperture in the embodiment of the present invention 7.
Figure 10 is the structural schematic diagram of the embodiment of the present invention 8.
Figure 11 is the structural schematic diagram of the embodiment of the present invention 9.
Figure 12 is the overlooking structure diagram that leaded light component forms square boss in the embodiment of the present invention 9.
Figure 13 is the overlooking structure diagram that leaded light component forms strip boss in the embodiment of the present invention 9.
Figure 14 is the structural schematic diagram of the embodiment of the present invention 10.
Figure 15 is another structural schematic diagram of the embodiment of the present invention 10.
Figure 16 is the overlooking structure diagram of the embodiment of the present invention 10.
Specific embodiment
Present invention will be further explained below with reference to specific examples.It should be understood that these embodiments are merely to illustrate the present invention
Rather than it limits the scope of the invention.In addition, it should also be understood that, after reading the content taught by the present invention, those skilled in the art
Member can make various changes or modifications the present invention, and such equivalent forms equally fall within the application the appended claims and limited
Range.
Embodiment 1
A kind of photocuring 3D printing device as shown in Figure 1, including mould plate 1 and leaded light component 2, curing model 51 combine
On mould plate 1.Leaded light component 2 includes optical waveguide 21, is coupled into portion 22 and decoupling portion 23, the corresponding decoupling portion 23 of leaded light component 2
Region is decoupling area 24.The decoupling area 24 of leaded light component 2 is correspondingly arranged with mould plate 1, between mould plate 1 and leaded light component 2
Spacing controlled can adjust, i.e., relative movement is able to carry out between mould plate 1 and leaded light component 2, such as along the direction mould of arrow 91
Template 1 is mobile far from leaded light component 2 or leaded light component 2 is mobile far from mould plate 1.Between mould plate 1 and leaded light component 2
Relative movement can also be that mould plate 1 is moved along the direction perpendicular to arrow 91 relative to leaded light component 2 or leaded light component 2
It is moved along the direction relative model plate 1 perpendicular to arrow 91, or along the direction model plate 1 for being parallel to leaded light component 2 and guide-lighting group
Relative movement between part 2.
Light beam 31 injects optical waveguide 21 by being coupled into the conversion adjustment of portion 22, and transmits in optical waveguide 21.Light beam 31 is by decoupling
Portion 23 towards the direction of mould plate 1 projects leaded light component 2 after converting, and irradiates photosensitive printing material 5 so that curing model 51 with lead
The printing material 5 in region is cured to form solidification transition region 59 between optical assembly 2, and solidifies and be integrated to curing model 51.Printing
In the process, mould plate 1 controlled can be moved along arrow 91 to the direction far from leaded light component 2, so that curing model 51 be driven to transport
Dynamic, printing material 5 is by 51 perimeter of curing model to the forming area curing model 51 and leaded light component 2.It is also possible to mould
The mode that template 1 drives curing model 51 to move repeatedly accelerates the supplement of printing material 5, and relocates mould plate 1 and leaded light component 2
Between relative position, then carry out according to next layer pattern carry out illumination curing, repeat the above process until model printing complete.
Coaming plate 42 can be also equipped with by corresponding in printing equipment around decoupling area 24, and cooperatively form receiving printing with the sealing of leaded light component 2
The container of material 5, to facilitate printing material 5 in print procedure to be constantly filled into the molding between curing model 51 and leaded light component 2
Region.
Injection side and mould plate 1 that light beam 31 is illustrated in Fig. 1 are all disposed within the same side of leaded light component 2, such as in figure
All in the top of leaded light component 2, naturally it is also possible to the not ipsilateral of leaded light component 2 be arranged in, such as mould plate 1 is arranged at guide-lighting group
The top of part 2, and light beam 31 is injected by the lower section of leaded light component 2.Light beam 31 can be coupled using various ways by being coupled into portion 22
Imported into optical waveguide 21, for example, by using reflecting mirror or optical grating construction by the coupling of light beam 31 imported into leaded light component 2 or other
Realize that 31 conversion direction of light beam couples the mode of incoming optical waveguide 21.Light beam 31 can be in optical waveguide 21 with such as Fig. 1 institute
The zigzag shown is propagated, or is propagated with sinusoidal wave shape as shown in Figure 2.Decoupling portion 23 can use various ways
By the coupling output of light beam 31 to irradiate printing material 5, the modes such as reflecting mirror or grating, such as diffraction coupling output can be passed through
(diffractive outcoupling with surface relief gratings), holographic coupling output
The coupling of (Holographic outcoupling with volumetric holographic gratings), polarization film is defeated
(Polarized thin layer outcoupling), reflection coupling output (reflective outcoupling), half out
Saturating half counter coupled output (Geometric with trasflective mirror array, or be geometry optical waveguide) etc.,
Or other realize the mode of 31 conversion direction of light beam coupling output.Optical waveguide 21 can design be in strip, plate or film
Shape can use uniform dielectric optical waveguide, can also use the optical waveguide of variable refractivity optical waveguide or other forms, such as
The diffused optical waveguide that corresponding ion is formed is spread based on lithium columbate crystal or glass.Leaded light component 2 can be used for transmitting and becoming
Change homogeneous beam or column of colour.
The embodiment is as basis of the invention, and by the conduction of leaded light component 2 and outgoing beam carries out printing shaping, institute's energy
It has the advantage that various: curing molding is carried out using optical waveguide transmitting beam to photosensitive printing material, it can be by light source
The position of material container is opposite freely arranges for position and photosensitive printing, is conducive to the structure optimization of printing equipment, simplifies determining for light source
Position and installation；Light source may be located remotely from photosensitive printing material, and space is easy freely to arrange and utilize, convenient to leaded light component and printing material
Carry out radiating treatment；In addition light source is fixed with the portion relative position of being coupled into, and decoupling portion and printing material (storage tank) position are relatively fixed, light
Line is propagated in optical waveguide, and optical waveguide can have certain elasticity so that between light source and photosensitive printing material position it is a little
Variation hardly influences printing precision, i.e. printing precision is not easy to be affected by the external environment, conducive to the vibration resistance of lifting means
Performance And Reliability；Since light beam is also to be conducive to reduce influence of the ambient to printing precision in optical waveguide internal transmission；Benefit
Light beam is transmitted with optical waveguide, can be controlled with flexibly adjustment light beam transmitting path and conveniently to light beam transmission, so that optical path
Arrangement it is more convenient, can need flexible modulation according to equipment, for example, leaded light component decoupling area either plane can also
To be curved surface, can with the different wavefront of light beam easy to accomplish, can in optical waveguide integral lens, or by control light beam by
Optical waveguide output angles and positions, can dynamic implement Beam Wave-Front control；Can also it facilitate to multiple light sources simultaneously to light wave
Middle transmitting beam is led, realize the merging of light beam, switching and is combined.
Embodiment 2
As shown in Fig. 2, 31 directive of light beam that light source 3 issues is coupled into portion 22, it is coupled into portion 22 and injects 31 adjustment direction of light beam
Optical waveguide 21, signal light beam 31 is propagated in optical waveguide 21 with sine wave in figure, reaches decoupling portion 23, and decoupling portion 23 is by light
31 adjustment direction of beam is projected towards light-transmitting plate 25, and irradiation printing material 5 carries out photocuring.It is external that portion 22 and decoupling portion 23 are coupled into figure
In the outer surface of optical waveguide 21, for example, by using grating, naturally it is also possible to it is integrated with the inside of optical waveguide 21, such as reflecting mirror,
Or semi-transparent semi-reflecting eyeglass etc..
Unlike the first embodiment, decoupling portion 23 converts light beam 31 simultaneously in the decoupling area 24 of leaded light component 2 embodiment
Discrete injection leaded light component 2, such as interval, diffusion are projected, and form several light beams between curing model 51 and leaded light component 2
Race 32.It is also possible that contacting between at least partly adjacent light beam race 32 or partially overlapping.
Embodiment 3
As shown in figure 3, the embodiment is unlike the first embodiment, between the decoupling area 24 and mould plate 1 of leaded light component 2
It is correspondingly provided with light-transmitting plate 25.Microlens array 26 can also be equipped with inside light-transmitting plate 25, the light beam 31 that decoupling portion 23 projects passes through
After crossing the transformation of microlens array 26 (such as focussing force) of light-transmitting plate 25, from the discretization of half-space surface towards mould plate 1 of light-transmitting plate 25
It projects, such as interval, diffusion are projected, and form several light beam races 32 between curing model 51 and light-transmitting plate 25, can also be
Contact or part are overlapping at least partly between adjacent beams race 32.Microlens array 26 can be the change folding buried in light-transmitting plate 25
Rate microlens array (as shown in the figure) is penetrated, half convex lens array formed on the surface of light-transmitting plate 2 or half can also be passed through
Concave mirror arrangements, or use diffraction microlens array.
In embodiment 2 or embodiment 3, if light beam 31 is formed between curing model 51 and leaded light component 2 or light-transmitting plate 25
The light beam race 32 at interval, diffusion is done, the printing material 5 in 32 region of light beam race, which is cured, is integrated to curing model 51, and light beam
The printing material 5 of interval region between race 32 will not be cured, to form printing material flow region, not only improve curing model
The quick flowing supplement of 51 printing materials 5 when separating with leaded light component 2 or light-transmitting plate 25 is also beneficial to reduce curing model 51 and lead
Bonded area between optical assembly 2 or light-transmitting plate 2 reduces separation force.Moreover, the focus point of light beam 31 can be by adjusting
It is located on the surface towards mould plate side of leaded light component 2 or light-transmitting plate 25, curing model 51 so may be implemented and lead
The space of the minimal-contact area and bigger printing material flowing and supplement of optical assembly 2 or light-transmitting plate 25.By adding light-transmitting plate
25, protection leaded light component 2 is also helped, light-transmitting plate 25 can also be made using the material for being conducive to be detached from curing model, can added
Fast print procedure；Alternatively, it is also possible to be that light beam race 3 is discrete, focus and project light-transmitting plate 25, such each light beam race 25 can be used for
Solidify several small models respectively, the batch of small model and accurate printing may be implemented.
Embodiment 4
As shown in figure 4, the embodiment further makes improvements on the basis of embodiment 1.In 2 relative model of leaded light component
Backboard 6 is reinforced in the other side setting of plate 1, for reinforcing leaded light component 2, promotes 2 structural stability of leaded light component, promotes light beam and pass
Defeated precision.Reinforcing being also provided with pipeline 61 in backboard 6, inside can be passed through coolant liquid to printing material 5 or guide-lighting group
Part 2 is cooled down, certainly, inside can also be passed through heating liquid or electric heating wire, printing material 5 is heated, it is ensured that printing
Material 5 is in suitable print temperature, promotes printing precision and speed.
Mould plate 1, curing model 51 and printing material 5 can be enclosed in the first printing material storage tank 4, can be by promotion
Portion's pressure accelerates the forming area that printing material 5 flows between curing model 51 and leaded light component 2, accelerates print speed.Specifically,
Guide rod 11 is connect with mould plate 1, and guide rod 11 stretches out the first printing material storage tank 4, and keeps the cunning between the first printing material storage tank 4
Dynamic sealing drives mould plate 1 to move along arrow 91 by guide rod 11, to keep the pressure inside the first printing material storage tank 4.Due to
Light beam is transmitted in the form of optical waveguide, can be effective against printing material 5 to the pressure of leaded light component 2 using backboard 6 is reinforced
Effect reduces the deformation of leaded light component 2, the deformation of leaded light component 2 can be kept small in the case where printing material 5 is pressurized or
Without deformation, it can be achieved that the pressurization to printing material 5 prints, print speed can be not only promoted, but also can guarantee printing precision.Due to adopting
With 2 transmitting beam of leaded light component, light beam is not needed through backboard 6 is reinforced, so reinforcing the structure of backboard 6 and selection can more hold
It easily realizes, reinforcing backboard 6 can be used as the pedestal of entire printing equipment, and whole structure more consolidates compact.In addition, light source 3
The light beam 31 of sending is transmitted to leaded light component 2 after may also pass through microscope group 39 again, is irradiated to optical waveguide 21 conducive to adjustment light beam 31
Incidence angle.
Embodiment 5
As shown in figure 5, the embodiment further makes improvements on the basis of embodiment 1.The decoupling area 24 of leaded light component 2
The back side of relative model plate 1 is equipped with curing inhibitors storage tank 72, and 72 internal reservoir of curing inhibitors storage tank has curing inhibitors 7.
Leaded light component 2 is made of semipermeable membrane material, and curing inhibitors 7 can be allowed to be sent to the coupling of leaded light component 2 through leaded light component 2
24 upper surface of area out forms anti-cured layer 58 (i.e. solidification dead zone), i.e., illumination not will lead to printing material 5 and occur admittedly in this region
Change, to be conducive to the forming area that printing material 5 is quickly flow between curing model 51 and leaded light component 2, accelerates printing
Speed.
Curing inhibitors storage tank 72 may be connect with second pressure source 71, and solidification is controlled using second pressure source 71 and is inhibited
The internal pressure of agent storage tank 72, so that the rate for penetrating into 2 upper surface of leaded light component to curing inhibitors 7 controls.Due to
Using 2 transmitting beam of leaded light component, the region of curing inhibitors storage tank 72 can be passed through without light beam, can be easier to realize
Or simplify the control system of inhibitor 5 supply structure and pressurization.
Light source 3 is further illustrated in figure can be at an angle of setting with leaded light component 2, and light beam 31 is allowed to enter leaded light component 2
When incidence angle be suitble to propagation of the light beam in optical waveguide 21.
Embodiment 6
As shown in fig. 6, the embodiment is further made improvements on the basis of embodiment 5, and the structure of printing equipment
It is compared with Example 4 setting of turning upside down, i.e., light beam 31 is that irradiation printing material 5 carries out curing molding from top to bottom, more
Conducive to the combination of curing model 51 and mould plate 1.
It is also differ in that with embodiment 5, the back side setting of 24 relative model plate 1 in the decoupling area of leaded light component 2
Reinforce backboard 6, leaded light component 2, which is fixed on, reinforces backboard 6, can effectively promote the intensity of leaded light component 2.Meanwhile curing inhibitors 7
It can penetrate and reinforce the arrival leaded light component 2 of backboard 6, be capable of infiltration solidification inhibitor 7 for example, reinforcing backboard 6 and can use
Material is made, or processes perforative curing inhibitors flowing hole (not shown) on reinforcing backboard 6.Curing inhibitors
7 can further penetrate leaded light component 2, form anti-58 (figure of cured layer into printing material 5 and in the lower surface of leaded light component 2
In be not shown).
Schematic model plate 1 and the first printing material storage tank 4 are slidingly sealed cooperation in figure, form closed inner cavity, can be promoted
Inside is full of printing material 5, and first pressure source 41 also can be used and be fed to printing material 5, and the pressure of also controllable printing material 5
By force, print speed or print performance are promoted.
In the embodiment, due to using 2 transmitting beam of leaded light component, so reinforcing the asking without the concern for light transmission of backboard 6
Topic, can the greatly simplified design and selection for reinforcing backboard 6.Simultaneously because reinforcing the reinforcement effect of backboard 6, it can be ensured that printing material
5 carry out still guaranteeing the integrality of structure and the accuracy of irradiation patterns in the case where being substantially pressurized, and guarantee printing precision
With promotion print speed.
Embodiment 7
As shown in fig. 7, illustrating to be provided with the first printing material flowing hole 28 in the decoupling area 24 of leaded light component 2, and scheming
Second printing material storage tank 45 of the lower section (back side of relative model plate 1) of middle leaded light component 2 provided with storage print material 5, second
Printing material storage tank 45 is connect with first pressure source 41, and first pressure source 41 is 5 feeding device of printing material or material pump device, itself
Can have pressurization or pressure control effect.
In print procedure, the printing material 5 of 2 lower section of leaded light component can be transmitted to through the first printing material flowing hole 28 to be led
The top of optical assembly 2, compared to printing material 5 in existing printing equipment along the slit of 51 weeks 51 lower sections of edge curing model of curing model
Region to forming area center flow, this feed supplement structure of the embodiment can substantially shorten printing material 5 feed supplement flowing away from
From can be realized more so that the feed supplement flow distance at each position between curing model 51 and leaded light component 2 is essentially identical
Add and rapidly supplement new printing material 5, promotes print speed.In traditional printing type, when the size of curing model 51 is larger, i.e.,
When the area of curing molding is larger, printing material 5, which need to flow through longer path, can be only achieved the interior of 51 lower section forming area of curing model
The prolongation of portion position, printing material 5 is long.When 51 lower position of curing model cannot be replenished in time in printing material, curing mold
The middle section of 51 lower section of type will form certain vacuum degree, hinders the separation between curing model 51 and leaded light component 2, reduces
Print speed.And in the present embodiment, printing material 5 can be directly delivered under curing model 51 by the first printing material flowing hole 28
Side is not influenced by solidification area, the supplement printing material of high speed, Ke Yi great can be kept for the printing with large area model
To promote print speed.In addition, since printing material 5 can be pushed away by 51 lower section of curing model with certain upward feeding of pressure
Dynamic curing model 51 moves upwards, and can accelerate the separation of curing model 51 Yu leaded light component 2, to further promote printing speed
Degree.
Fig. 8 is the partial enlargement diagram of identified areas 99 in Fig. 7, and illustrates the first printing material flowing hole 28 and be arranged to
Taper convenient for the upward flowing of printing material 5, and reduces area shared by 28 top of the first printing material flowing hole, and there are more
Area for light beam 31 upwards irradiate.In addition, the lower section of leaded light component 2, which can also be arranged, reinforces backboard 6, reinforce on backboard 6
Equipped with perforative second printing material flowing hole 62, printing material 5 can flow to the first printing material through the second printing material flowing hole 62
Flowing hole 28, such as the second printing material flowing hole 62 can be allowed corresponding with 28 position of the first printing material flowing hole, reinforce backboard 6
The printing material 5 of lower section can pass sequentially through the second printing material flowing hole 62 and the first printing material flowing hole 28 is delivered up.
Fig. 9 illustrates the partial enlargement diagram of identified areas 99 in Fig. 6, and illustrates first dozen on leaded light component 2
Print material flowing hole 28 can be set to incline structure, such as can be in order to which the first printing material flowing hole 28 is in leaded light component 2
Arrangement reflective mirror or semi-transparent semi-reflecting eyeglass etc. match.Certainly, the first printing material flowing hole 28 can also be curved, Huo Zhetong
Cross other any modes realize printing material 5 from the lower section of leaded light component 2 to leaded light component 2 above transmit.
Embodiment 8
As shown in Figure 10, which is the improvement further made on the basis of embodiment 8, in the first printing material mistake
Valve 29 is set on the feeding path of discharge orifice 28, to control the switch of each first printing material flowing hole 28, or adjustment each the
The opening degree of one printing material flowing hole 28.Specific structure can be equipped at the back side of 2 relative model plate 1 of leaded light component reinforces back
Valve 29 can be arranged in reinforcing backboard 6, flow into guide-lighting group through the first printing material flowing hole 28 for controlling printing material 5 for plate 6
The position and speed of 2 top of part.One valve 29 of setting can be respectively corresponded to each first printing material flowing hole 28, it can also be with
It is that multiple first printing material flowing holes 28 are connected on the same valve 29, by the control of the same valve 29.
Several valves 29 can be connect with controller 92 respectively, and be controlled by controller 92, can be according to curing model 51
The pattern of current contoured cross-section, control valve 29 some or all of allow in contoured cross-section region valve opening, outside cross section
Valve close, allow printing material 5 to flow up to the region between curing model 51 and leaded light component 2, supplement printing material simultaneously pushes away
Dynamic curing model 51 is detached from leaded light component 2, accelerates print speed.
In addition, also being slidably matched to form sealing by the mould plate 1 of piston-like and the first printing material storage tank 4 in the embodiment
Working chamber, the second printing material storage tank 45 is located at the lower section of stiffening plate 6, and first pressure source 41 is the pumping installations of printing material 5, is led to
First pressure source 41 is crossed to 45 feeding of the second printing material storage tank and promotes the internal pressure of 45 closing chamber of the second printing material storage tank, is allowed
Printing material 5 is pressurizeed upwardly through printing material via hole 62 and 28 accelerates flowing, is additionally favorable between curing model 51 and light element 2
It is detached from, further promotes print speed.
Embodiment 9
As shown in figure 11, illustrate the side opposite with mould plate 1 in the decoupling area 24 of leaded light component 2 form interval it is convex
Platform 27, these boss 27 form array, have spacing convave trough fast by 51 outside of curing model for printing material 5 between boss 27
Speed flows to 51 lower inner of curing model, is conducive to promote feed rate, at the same reduce curing model 51 and leaded light component 2 it
Between bonded area, the separation force both reduced.Light shield layer 26 can be formed in the bottom of spacing convave trough, prevents light beam 31 from existing
Root between boss 27 is projected irradiation printing material 5 and is cured, and the flowing of printing material 5 is influenced, and specific light shield layer 26 can be table
Face processing it is coarse opaque, be also possible to coating every optical material layer or other every light mode.
Figure 12 and Figure 13 illustrates the top view of the printing equipment of Figure 11 in the present embodiment, and mould plate 1 is omitted, in coupling
The cross sectional shape for the boss 27 that area 24 is arranged out can be as shown in figure 12 rectangular, be also possible to strip as shown in fig. 13 that
Shape can also be round or other shapes.
Embodiment 10
As shown in Figure 14 and Figure 15, it printing equipment is illustrated in the embodiment can have multiple to be coupled into portion or multiple light sources
3, the light beam 31 of each light source 3 injects optical waveguide 21 through corresponding portion of being coupled into respectively, is transferred to decoupling portion 23 through optical waveguide 21,
Light beam 31 projects irradiation printing material 5 from decoupling area 24 and carries out curing molding.As shown, the light beam 31-1 of light source 3-1 is through being coupled into
Portion 22-a is coupled into optical waveguide 21a, and the light beam 31-2 of light source 3-2 is coupled into portion 22-b and is coupled into optical waveguide 21b, optical waveguide
21a and 21b can be the different parts with a piece of optical waveguide, and light beam 31-1 and 31-2 are transferred to decoupling area 24, through decoupling portion
23 decoupling elective irradiation printing materials 5 are solidified.Figure 15 compared with figure 14 leaded light component 2 using multiple independent optical waveguides and
Decoupling portion is formed by stacking, and conducive to the area for reducing each optical waveguide, convenient for production, each optical waveguide correspondence of leaded light component 2 is set
It is coupled into portion 22, portion 22 is each coupled into and light beam 31 is injected by corresponding light source 3 respectively, each optical waveguide can share identical
Decoupling area 24.Figure 16 is the top view of the present embodiment, and illustrates to can have more light sources, as shown in the figure along decoupling area
4 light sources of 24 surroundings arrangement.In addition it can the lower section in the decoupling area 24 of leaded light component 2 be arranged other light sources (such as DLP or
The light sources such as LCD) illumination beam, so that light beam irradiates printing material 5 through decoupling portion 23 and with the light beam in decoupling portion 31 upwards jointly,
Also multiple light courcess irradiation may be implemented.
It can have a variety of benefits using multiple light sources, such as illumination power can be enhanced, promote print speed, Huo Zherang
Two light sources work alternatively, so that the temperature of each light source is unlikely to excessively high, are conducive to the service life for promoting light source.In addition, multiple
The light beam of light source can also be transferred to the different zones in decoupling area 24 through optical waveguide, can increase the area of irradiation area
Increase the area of forming area, realizes the printing of more large-sized model.Multiple light courcess is through optical waveguide transmitting beam curing molding, when wherein one
A light sources fail can be worked on by other light sources and keep continuing working for entire 3D printing device, so as to mention
The reliability of system is risen.Alternatively, the characteristic that each light source issues light beam is different, the light beam 31- that for example the light source 3-1 in figure is issued
1 can make printing material 5 solidify, and the light beam 31-2 that light source 3-2 is issued can prevent printing material 5 from being solidified by other light beams, such as
Solidify when the 31-1 illumination of this light beam, anti-cured layer can be formed close to the surface of printing material 5 in leaded light component 2, is convenient for printing material 5
Quickly it flow to shaping area.
Mould plate 1 can be realized along moving for arrow 91 using the conventional prior art, such as screw body, in addition completely
Printing equipment or system may further include controller and corresponding electric performance device, it is also possible to including controller or computer
Device etc., is specifically not repeated.
The material of optical waveguide 21 can be a variety of optical materials, or on the basis of other substrates (as reinforced backboard 6)
Upper laying optical material, such as lithium niobate (LiNbO3), III-V race's semiconducting compound, silica (SiO2), SOI
(Silicon-on-Insulator, silicon-on-insulator), polymer (Polymer) and glass diffused optical waveguide.
Photocuring light source can according to specific photosensitive resin characteristic use corresponding light source, such as wavelength be 355nm or
The ultraviolet source of 405nm or the visible light source of 405nm to 600nm.Light source can use SLA (Stereo
Lithography Apparatus), digital projection light source DLP (Digital light Processing), laser scanning
(Laser), the various ways such as LED screen, LCD screen are realized, also can use mobile phone screen, IPAD screen or other display screens etc.
Screen can also cooperate corresponding microscope group adjustment light beam as light source certainly.
Photosensitive printing material 5 is the liquid material that any illumination can trigger curing reaction, as light-induced polymerization reacts
Resin liquid, it is also possible to the mixed-powder material in resin liquid, such as ceramic powders, metal powder, plastic powders or others
Dusty material, it is also possible to cell mixing, drug, pigment etc. in resin liquid.
Foregoing embodiments, which can also be arranged in the chamber of a controlled temperature, carries out 3D printing, such as in chamber
It is setting value that setting heater and temperature sensor, which carry out the indoor temperature of control chamber, makes the polymerization reaction of photosensitive resin more steady
It is fixed, promote print quality and print speed.
The Directional words such as "upper", "lower", "left", "right" employed in present invention narration, are the sides based on specific attached drawing
Just property describes, and is not limitation of the present invention.In practical application, due to the whole transformation in space of structure, actual orientation can
Can be with the difference of attached drawing, but these transformation belong to protection scope of the presently claimed invention.
Claims (15)
1. a kind of photocuring 3D printing device, including mould plate (1), curing model (51) are combined on the mould plate (1),
It is characterized in that: further including leaded light component (2), the leaded light component (2) includes being coupled into portion (22), optical waveguide (21) and decoupling portion
(23), the decoupling portion (23) is correspondingly arranged with mould plate (1), and the portion (22) that is coupled into converts the light beam (31) of injection
Import optical waveguide (21) conduction to decoupling portion (23) and by decoupling portion (23) conversion from decoupling area (24) to leaded light component (2) with
Mould plate projects between (1), can relatively move between the mould plate (1) and leaded light component (2).
2. photocuring 3D printing device according to claim 1, it is characterised in that: the decoupling area of the leaded light component (2)
(24) it is correspondingly provided between mould plate (1) light-transmitting plate (25), the light-transmitting plate (25) is equipped with microlens array (26), the coupling
The light beam (31) that portion (23) are projected out converted by the microlens array (26) of light-transmitting plate (25) after from light-transmitting plate (25) towards mould
The discretization of half-space surface of template (1) projects and forms several light beam races (32) between curing model (51) and light-transmitting plate (25).
3. photocuring 3D printing device according to claim 1, it is characterised in that: leaded light component (2) relative model
The back side of plate (1), which is equipped with, reinforces backboard (6).
4. photocuring 3D printing device according to claim 1, it is characterised in that: leaded light component (2) relative model
The back side of plate (1) is equipped with curing inhibitors storage tank (72), and curing inhibitors storage tank (72) internal reservoir has curing inhibitors
(7), the leaded light component (2) is made of the material that can pass through curing inhibitors (7).
5. photocuring 3D printing device according to claim 4, it is characterised in that: the curing inhibitors storage tank (72) is logical
It crosses second pressure source (71) and carries out pressure control.
6. photocuring 3D printing device according to claim 4, it is characterised in that: leaded light component (2) relative model
The back side of plate (1) be equipped with reinforce backboard (6), it is described reinforce backboard (6) using can pass through curing inhibitors (7) material be made or
Person is equipped with perforative curing inhibitors flowing hole.
7. photocuring 3D printing device according to claim 1, it is characterised in that: the decoupling area of the leaded light component (2)
(24) it is equipped with perforative first printing material flowing hole (28).
8. photocuring 3D printing device according to claim 7, it is characterised in that: leaded light component (2) relative model
The back side of plate (1) be equipped with the second printing material storage tank (45), the second printing material storage tank (45) by first pressure source (41) into
The control of row pressure.
9. photocuring 3D printing device according to claim 7, it is characterised in that: leaded light component (2) relative model
The back side of plate (1), which is equipped with, reinforces backboard (6), and the reinforcement backboard (6) is equipped with perforative second printing material flowing hole (62).
10. photocuring 3D printing device according to claim 9, it is characterised in that: the second printing material flowing hole
(62) path is equipped with valve (29), and the valve (29) connect with controller (92) and controlled by controller (92)
System.
11. according to photocuring 3D printing device described in claim 3,6 or 9, it is characterised in that: in the reinforcement backboard (6)
Portion is equipped with pipeline (61), by coolant liquid or by heating liquid or laying heating wires inside the pipeline (61).
12. according to photocuring 3D printing device described in claim 3,6 or 9, it is characterised in that: the leaded light component (2)
Decoupling area (24) is equipped with the first printing material storage tank (4) towards the side of mould plate (1), and the first printing material storage tank (4) has
Print chamber is sealed, the curing model (51) is located inside the sealing print chamber, the sealing print chamber and first pressure source
(41) it is connected to.
13. photocuring 3D printing device according to claim 1, it is characterised in that: the decoupling area of the leaded light component (2)
(24) spaced boss (27) are formed towards the side of mould plate (1).
14. photocuring 3D printing device according to claim 1, it is characterised in that: the leaded light component (2) is equipped with several
It is coupled into portion (22), several portions (22) that are coupled into inject light beam (31) by corresponding light source (3) respectively.
15. photocuring 3D printing device according to claim 14, it is characterised in that: in the multiple light source (3) at least
It is that printing material solidification inhibits light source there are a light source, the printing material solidifies the light beam (31) for inhibiting light source to issue by conduction
It irradiates printing material (5) and forms anti-cured layer on decoupling area (24) surface of the leaded light component (2).
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112060571A (en) * | 2020-08-31 | 2020-12-11 | 深圳市纵维立方科技有限公司 | Printing method and printing apparatus |
| CN112590199A (en) * | 2021-03-02 | 2021-04-02 | 源秩科技（上海）有限公司 | Photocuring three-dimensional printing method |
| CN112904585A (en) * | 2021-04-21 | 2021-06-04 | 南昌三极光电有限公司 | Optical system |
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| CN112060571A (en) * | 2020-08-31 | 2020-12-11 | 深圳市纵维立方科技有限公司 | Printing method and printing apparatus |
| CN112060571B (en) * | 2020-08-31 | 2022-07-08 | 深圳市纵维立方科技有限公司 | Printing method and printing apparatus |
| CN112590199A (en) * | 2021-03-02 | 2021-04-02 | 源秩科技（上海）有限公司 | Photocuring three-dimensional printing method |
| CN112904585A (en) * | 2021-04-21 | 2021-06-04 | 南昌三极光电有限公司 | Optical system |
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| CN110524875B (en) | 2022-03-08 |
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