CN205467381U - 3D (three -dimensional) printing device - Google Patents
3D (three -dimensional) printing device Download PDFInfo
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- CN205467381U CN205467381U CN201620030753.1U CN201620030753U CN205467381U CN 205467381 U CN205467381 U CN 205467381U CN 201620030753 U CN201620030753 U CN 201620030753U CN 205467381 U CN205467381 U CN 205467381U
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Abstract
The utility model relates to a 3D (three -dimensional) printing device, this equipment include illumination source, workstation and liquid tank, and the workstation is used for bearing the three -dimensional body of structure, liquid tank is used for the polymerizable liquid of splendid attire structure three -dimensional body, and this equipment still includes the overlay, and this overlay is arranged in liquid tank, perhaps is located liquid tank's top, illumination source shines above the overlay, and this overlay is illumination source transparent component, the lower surface of overlay is for covering the surface, print the in -process cover the surface keep with polymerizable fluid contact. The utility model discloses a 3D printing method has still been provided. The technical scheme of the utility model need not to strickle off and to carry out the new solidification of shining, overcome tradition defects such as the liquid level is undulant in " top -down " three -dimensional manufacturing technology, machinery is complicated, speed is hanged down, can not be printed in succession.
Description
Technical field
This utility model relates to 3D and prints field, particularly relates to a kind of 3D printing device.
Background technology
It is a kind of based on mathematical model file that 3D prints (three-dimensional manufacture), comes by the way of successively printing, accumulating layer by layer
The technology of structure three-dimensional body.Especially, use visible ray or ultraviolet light to irradiate photosensitive resin and successively solidify to construct three-dimensional body,
Normally referred to as Stereo Lithography technology (SLA).Known have two kinds of technology to realize SLA: a kind of for newly increasing layer in structure
The upper surface of object, referred to as " from top to bottom " manufacturing technology；It is another kind of for newly increase layer lower surface of object in structure,
The referred to as manufacturing technology of " from bottom to top ".
For " from top to bottom " technology, Chinese Patent Application No. is 201410795471.6, entitled " a kind of tool of utility model
Have laser 3D printer and the photocuring Method of printing thereof striking off function ", it is disclosed that following content: beat at photocuring 3D
When print process starts, irradiation source irradiates from top to bottom, and the upper surface newly increasing layer object in structure is formed, and often forms one layer,
Object in structure declines one layer and slips into below the liquid level printing stock solution, i.e. print unit and often scan solidification one at illumination unit
After aspect, the described unit that strikes off just once strikes off process to described aspect upper end, and then described print unit is the most overall
Decline a floor height, and carry out the printing of next aspect, until having printed.That is, strike off unit formation level is carried out
Once strike off action and a smoothing action, print stock solution and again coat the upper surface of one layer of object in structure, carry out the most again
New light irradiates curing schedule.The shortcoming of this " from top to bottom " three-dimensional manufacturing technology be build in object to need to slip into printing former
In liquid, and needing to stop light irradiation after every layer is formed, the mechanical movement means of startup complexity carries out liquid level and strikes off, with again
The printing stock solution cover layer of formation level, makes equipment complicate and expends three-dimensional manufacturing time.
Utility model content
The purpose of this utility model is to provide a kind of 3D printing device, utilizes the top-down radiation modality of irradiation source and uses
The element that irradiation source is transparent is covered wholly or in part polymerizable liquid to keep stable covering surface, thus without striking off
Carry out new irradiation curing schedule, in order to overcome liquid fluctuating in the three-dimensional manufacturing technology of tradition " from top to bottom ", machinery complicated,
Speed is low, can not the defect such as printing continuously.
This utility model is achieved through the following technical solutions:
A kind of 3D printing device that the utility model proposes, this equipment includes irradiation source, workbench and liquid tank, and workbench is used
In the three-dimensional body that carrying builds；Liquid tank builds the polymerizable liquid of three-dimensional body for containing, and this equipment also includes covering plate,
This covering plate is positioned in liquid tank, or is positioned at the top of liquid tank；Irradiation source is from covering irradiation above plate, and this covering plate is right
The element that irradiation source is transparent；The lower surface covering plate is covering surface, covers surface and keep and polymerizable liquid in print procedure
Contact.
Further, in print procedure, cover surface and maintain static or the most motionless.
Further, when described covering plate is positioned at the top of liquid tank, covers plate and form hermetic container with liquid tank or have out
The container of mouth；When this covering plate is positioned in liquid tank, covers plate and be fixed in the agent structure of 3D printing device or liquid tank
On, liquid tank is hermetic container or the container with opening.
Further, described covering plate is semipermeability element, and polymerization inhibitor can infiltrate into through described semipermeability element
Described covering surface, thus suppression cured layer is formed on described covering surface, described polymerization inhibitor is used for suppressing described polymerizable
The solidification of liquid.
Further, described semipermeability element is semipermeable polymer, cellular glass, nucleopore membranes element, micropore quartz-crystal
Body member, micropore Muscovitum element, or combinations thereof；Or, semipermeability element has the oxygen permeability not less than 10 bars.
Further, described suppression cured layer has the thickness no less than 5 μm；Or, suppression cured layer also should remain certain
Time, this time is at least no less than solidification process duration.
Further, the support component of rigidity is set at described semipermeability member outboard or inside, is used for increasing semipermeability unit
The rigidity of part.
Further, polymerization inhibitor passes through naturally or pressurization is through described semipermeability element.
Further, the surface that covers covering plate uses the polymerizable liquid to solidification not have viscosity or the less material of viscosity or unit
Part.
Further, described do not have viscosity or the less element of viscosity selected from Teflon element, silica gel component, polydimethylsiloxanes
Alkane element, perfluoroethylene-propylene element, or combinations thereof.
Further, described polymerizable liquid comprises free radical polymerizing resin, and its corresponding curing inhibitors is air, pure
Oxygen or oxygen-rich mixture body.
Further, when described covering plate is with liquid tank composition hermetic container, described equipment also includes liquid pump, pressure detector
And control unit, pressure detector is for detecting the pressure change in hermetic container, and control unit detects according to pressure detector
Pressure change, drive liquid pump pumping polymerizable liquid, to maintain the pressure in hermetic container.
Further, this equipment also includes motor and control unit, and motor drives under the control of the control unit on workbench and moves down
Dynamic.
Further, the installation position at liquid tank arranges sealing ring.
According to this utility model, can be liquid or gas form for inhibitor of the present utility model or polymerization inhibitor.At some
In embodiment, preferably gas inhibitor.Concrete inhibitor depends on monomer and the polyreaction of polymerization.For radical polymerization
Closing monomer, inhibitor can be convenient for oxygen, and it can be provided as gas form, such as air, oxygen rich gas (optionally, but
Some embodiments preferably comprise other noble gas to reduce their combustibility), or be pure oxygen in some embodiments
Gas.In alternative embodiment, being wherein polymerized monomer by photo-acid generator initiator, inhibitor can be alkali, such as ammonia,
Trace amine (such as methylamine, ethamine, two and trialkylamine such as dimethylamine, diethylamine, trimethylamine, triethylamine etc.) or dioxy
Change carbon, including their mixture or combination.
The beneficial effects of the utility model:
1. this utility model uses the covering plate to irradiation source " transparent " to cover polymerizable liquid, due to polymerizable in print procedure
Liquid contacts the covering surface covered on plate wholly or in part, covers at this and is irradiated by irradiation source on surface, carrys out structure from level to level
Make three-dimensional body；When in print procedure, workbench moves down, polymerizable liquid is filled in structure region automatically, thus keeps and cover
The contact of cap surface, and then keep covering surface this face type in polymerizable liquid and the contact position covering surface, thus without
Strike off the irradiation solidification that can carry out new a layer, overcome liquid fluctuating, machinery in the three-dimensional manufacturing technology of tradition " from top to bottom "
Complicated, speed is low, can not the defect such as printing continuously.
2. this utility model has infiltrative covering plate to polymerization inhibitor thus is covering surface and can gather by using further
Close and form suppression cured layer between liquid, or to cover surface be that the polymerizable liquid to solidification does not have viscosity or the less material of viscosity
Material or element, realize easily or with no damage departing from, in order to overcome manufacture between consolidation zone and covering surface by these means
During solidified surface deformation problem.
Accompanying drawing explanation
Fig. 1 is method schematic diagram of the present utility model.
Fig. 2 is the schematic diagram of a kind of embodiment of covering plate of the present utility model.
Fig. 3 is the schematic diagram of the another kind of embodiment of covering plate of the present utility model.
Fig. 4 is the schematic diagram of the first embodiment of equipment of the present utility model.
Fig. 5 is the schematic diagram of the second embodiment of equipment of the present utility model.
Fig. 6 is the schematic diagram of the 3rd embodiment of equipment of the present utility model.
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with specific embodiment, and reference
Accompanying drawing, further describes this utility model.But those skilled in the art know, this utility model is not limited to accompanying drawing
And following example.
This utility model provides a kind of method that 3D prints, as shown in Figure 1.The method is for polymerizable liquid, by shining
Penetrate source such as visible ray or ultraviolet light to irradiate, cause polymerizable liquid solidification to manufacture three-dimensional body.The method is to use irradiation source
" from top to bottom " mode is implemented, and comprises the steps of
A () provides workbench and covers plate, wherein covering plate is the element transparent to irradiation source having and covering surface, workbench
And covering the structure region defining three-dimensional body between surface, irradiation source energy can pass through and covers the described structure region of plate irradiation；
Here " transparent to irradiation source " refers to allow the energy of irradiation source to pass through, and when irradiation source is light source, covering plate is optics
Transparent element；Irradiation source is preferably digital light processing system (DLP), digital micromirror elements (DMD) or laser instrument and sweeps
Retouch the combination of galvanometer；
B () is at the polymerizable liquid of described structure area filling liquid, and keep polymerizable liquid to contact with described covering surface；
C () irradiation source energy irradiates described structure region to form consolidation zone through described covering plate；
D () keeps described covering surface to maintain static or the most motionless, moved down by described workbench, by described consolidation zone
Separate with described covering surface, between described consolidation zone and described covering surface, form follow-up structure region；Polymerizable liquid
Body fills described subsequent builds region, and keeps polymerizable liquid to contact with covering surface and consolidation zone；
E () repeats step (c), (d), form new consolidation zone with the continuous region that builds in the rear, deposit and adhere to elder generation
On front consolidation zone, the three-dimensional body height in structure gradually increases, until forming described three-dimensional body.
Described workbench can move down uninterruptedly, and corresponding irradiating step is the most continual, wherein step (c),
D () need to be carried out simultaneously.
Described workbench can also move down discontinuously, and corresponding irradiating step is discontinuous, often moves down one layer, etc.
Treat the regular hour, after polymerizable liquid is fully filled with described subsequent builds region and stablizes, then implement next step curing schedule.
Namely step (c), (d) are carried out in order, and often step between there is intervals.
Further, can easily or with no damage separate between surface with covering for ensureing consolidation zone, polymerization can be used to press down
Preparation suppresses the solidification of the polymerizable liquid contacted with described covering surface, as shown in Figure 2.Wherein said covering plate is partly to ooze
Property element thoroughly, polymerization inhibitor can infiltrate into described covering surface through described semipermeability element, and described polymerization inhibitor presses down
Make the solidification of described polymerizable liquid, form the suppression cured layer being made up of polymerizable liquid in described covering lower face, to protect
Demonstrate,prove and easily or with no damage separate between described consolidation zone with described covering surface, suppression cured layer and consolidation zone such as Fig. 2 institute
Show.
For reaching above-mentioned purpose, semipermeability component requirements has and the characteristic of permeable inhibitor transparent to irradiation source.Therefore
Semipermeability element can be made up of nucleopore membranes element, micropore quartz crystal unit, micropore Muscovitum element or combinations thereof, or
Have not less than 10 bars (1 bar=10-10cm3·cm/(cm2S cmHg)) oxygen permeability.Wherein nucleopore membranes has uniformly
Aperture, air penetrability high, be the preferred material of composition semipermeability element.Owing to some semipermeability element has the spy of flexibility
Point, therefore can arrange the support component of rigidity, be used for increasing semipermeability element at described semipermeability member outboard or inside
Rigidity, such as support component semi-permeable and case carry out stretching, flatten, fix the rigidity increasing semipermeability element；
This support component can be coated with this semipermeability element wholly or in part, when support component is positioned on the exposure pathways of irradiation source,
This support component allows the energy of this irradiation source to pass through；When support component is positioned in the permeation pathway of polymerization inhibitor, this support
Element allows polymerization inhibitor to pass through.Wherein said nucleopore membranes can use following material (including but not limited to), is carved by nuclear track
Erosion is made: Merlon (PC), polyethylene terephthalate (PET), polyimides (PI), polyethylene (PE)
Or polypropylene (PP)；It is 10 that nucleopore membranes element typically has hole density7-1011/cm2, and/or aperture is 0.01 μm-5um；
Gas permeability is not less than 100 bars.Preferably, described semipermeability element has 108-1010/cm2Hole density, and/or tool
There is the aperture of 0.02 μm-0.2 μm size.Described micropore quartz crystal unit, micropore Muscovitum element can use nuclear track etching,
The mode of photoetching or ion etching obtains, and due to crystalline anisotropy, can obtain uniform cylinder hole at specific direction.
Easily or with no damage separating with covering between surface for ensureing consolidation zone, described suppression cured layer should have and is no less than
The thickness of 5 μm；Suppression cured layer also should maintain the regular hour, at least no less than solidification process duration.
Polymerizable liquid can include that (in such cases, corresponding curing inhibitors is for monomer, particularly free radical polymerization monomer
Air, pure oxygen or oxygen-rich mixture body, oxygen-enriched it is generally acknowledged that oxygen content is more than 21%), and the initiator such as free radical being suitable for
Initiator, and combinations thereof.Concrete polymerizable liquid includes: (methyl) acrylic compounds, acrylamide, phenylethylene,
Alkene, alkenyl halide, cyclic olefin, maleic anhydride, functionalized oligomeric thing, multifunctional curing site monomer, functionalization PEG
Deng, including combinations thereof.The example of liquid resin, monomer and initiator includes but not limited to liquid resin, monomer and initiation
The example of agent includes but not limited to: US8,232,043；US8,119,214；US7,935,476；US7,767,728；US7,649,029；
WO 2012129968A1；CN 102715751A；Content disclosed in JP 2012210408A, it is hereby incorporated by full
Reference.
If polymerizable liquid comprises free radical polymerizing resin, its corresponding curing inhibitors is oxygen.Can gather for free radical
The curing inhibitors that resin is used for example, air, pure oxygen, oxygen-rich mixture body.The pressure of curing inhibitors can also be strengthened
Power improves the permeability of curing inhibitors.
It addition, can easily or with no damage separate between surface with covering for ensureing consolidation zone, it is also possible at described covering plate
Cover and use on surface the polymerizable liquid for solidification not have viscosity or the less element of viscosity or material, as it is shown on figure 3,
With this in three-dimensional body building process, when workbench is drop-down, described consolidation zone easily separates with covering surface, uses this
Kind does not have the element of viscosity can be no longer necessary to extra curing inhibitors, and the element using viscosity less can use solidification suppression
Agent, it is also possible to do not use curing inhibitors.These do not have viscosity or the less element for example, Teflon element of viscosity, silica gel unit
Part, polydimethylsiloxane element, perfluoroethylene-propylene element or combinations thereof.Described do not have viscosity or viscosity is less
Element has the thickness of the thickness of 0.01mm to 100mm, for example, 1mm to 10mm.
This utility model also proposed a kind of equipment using polymerizable liquid to manufacture three-dimensional body, and Fig. 4 shows the of this equipment
One embodiment, equipment comprises following critical piece: agent structure 1, irradiation source 2, cover plate 3, three-dimensional body 4, workbench 5,
Liquid tank 6, control unit 7.
Agent structure 1, the basic frame structure of constitution equipment, fixing and being connected for miscellaneous part.
Irradiation source 2, irradiates structure region initiation described polymerizable liquid solidification through covering plate, and irradiation source 2 is preferably numeral
Optical processing system (DLP), digital micromirror elements (DMD) or laser instrument and the combination of scanning galvanometer.
There is the covering plate 3 covering surface, cover plate 3 in curing reaction implementation process for maintaining static or the most motionless right
The element that irradiation source is transparent, causes the energy of polymerizable liquid solidification to can pass through covering plate and is irradiated to cover surface.Wherein, cover
Surface completely or almost completely contacts polymerizable liquid.
Covering plate 3 can be as the top of liquid tank 6 or the part at top, it is also possible to more than the upper opening portion of liquid tank 6
Point, cover plate 3 and may be constructed hermetic container with liquid tank 6, it is also possible to constitute the container with opening.In the present embodiment,
Covering plate 3, as the top of liquid tank 6, constitutes a hermetic container with liquid tank 6, owing to covering plate 3 in the curing process
Maintaining static, the containment vessel volume therefore constituted is constant.Cover the lower surface of plate 3 for covering surface, inside hermetic container
When being full of polymerizable liquid, cover surface and contact with polymerizable liquid.
Workbench 5, workbench 5, for carrying the three-dimensional body of structure, is connected with electric platforms, and the motor in electric platforms exists
Under the control of control unit 7, driving workbench 5 moves up and down.The structure of three-dimensional body is limited between workbench 5 and covering surface
Building region, worktable upper surface is exactly to build the height of each layer of three-dimensional body to the distance on covering surface.When implementing curing reaction,
Workbench 5 moves down, and its speed moved down and/or cycle are adjusted by control unit 7 as the case may be.
Liquid tank 6, is used for accommodating polymerizable liquid, and when curing reaction is implemented, polymerizable liquid need to load liquid tank 6, until
Polymerizable liquid is full of the whole hermetic container being made up of covering plate 3 and liquid tank 6, and polymerizable liquid is completely or almost completely
Contact covers surface, and ensures not have in hermetic container bubble and space.In solidification implementation process, workbench 5 is away from covering
The space stayed during cap surface, polymerizable liquid can flow and insert, thus keeps and contacting of covering surface, and then at polymerizable
Liquid and the contact position covering surface keep covering this face type of surface, also will not introduce bubble or space simultaneously.
Control unit 7, in order to drive workbench 5 to move, to control intensity and the shape of irradiation source 2 irradiation.
It addition, cover plate 3 can also constitute the container with opening with liquid tank 6, so convenient supplementing in real time from opening can be gathered
Closing liquid, maintain static in the curing process owing to covering plate 3, the container volume therefore constituted is constant.Other guide with to figure
The description of 4 is consistent, repeats no more.
Further, can separate with no damage with covering for ensureing consolidation zone between surface, covering plate is semipermeability element,
Its upper surface contacts with polymerization inhibitor fluid, and polymerization inhibitor can infiltrate into described covering table through described semipermeability element
Face, described polymerization inhibitor suppresses the solidification of described polymerizable liquid, is formed by described polymerizable liquid in described covering lower face
The suppression cured layer of body composition, to ensure easily or with no damage to separate between described consolidation zone with described covering surface, such as figure
Shown in 2, now cover surface portion contact polymerizable liquid.In order to improve the permeability of polymerization inhibitor fluid, it is possible to use
Compressed gas cylinder or air pump pressurize to the container providing this polymerization inhibitor, thus improve the osmotic effect of fluid.
Or, can separate with no damage between surface with covering for ensureing consolidation zone, the covering surface covering plate may be used without
The polymerizable liquid of solidification do not had viscosity or the less material of viscosity or element so that consolidation zone can be lossless with covering surface
Wound ground separates, as shown in Figure 3；Use this material not having viscosity or element can be no longer necessary to extra curing inhibitors,
Material or element that use viscosity is less can use curing inhibitors reinforced effects, it is also possible to do not use curing inhibitors.
Fig. 5 shows the second embodiment of this equipment.The present embodiment is with the difference of the equipment in first embodiment, this
The described equipment of embodiment also includes liquid pump 8 and pressure detector 9, and pressure detector 9 is for detecting the pressure in hermetic container
Change, the pressure change that control unit 7 detects according to pressure detector 9, drive liquid pump 8 pumping polymerizable liquid, with dimension
Hold the pressure in hermetic container.When the pressure change that pressure detector 9 detects is more than when setting threshold value, and control unit 7 drives
The part polymerizable liquid in hermetic container taken away by liquid pump 8；The pressure change detected when pressure detector 9 is less than setting threshold value
Time, drive liquid pump 8 infeed section polymerizable liquid in hermetic container.The equipment of the present embodiment can effectively solve solidifying
The obvious problem of polymerizable liquid change in volume in journey.
In order to improve the sealing of container, can be at each parts (such as workbench 5, liquid pump 8, covering plate 3) and liquid tank 6
Installation position arranges sealing ring 10, illustrate only the situation arranging sealing ring in the installation place of workbench 5 with liquid tank 6 in Fig. 5.
Other guide is identical with first embodiment, does not repeats them here.
Fig. 6 shows the 3rd embodiment of this equipment, and described equipment comprises following critical piece: agent structure 1, irradiation source 2,
Cover plate 31, three-dimensional body 4, workbench 5, liquid tank 6 and control unit 7.
Agent structure 1, the basic frame structure of constitution equipment, fixing and being connected for miscellaneous part.
Irradiation source 2, in order to through covering plate irradiation structure region initiation described polymerizable liquid solidification, irradiation source 2 is preferably
Digital light processing system (DLP), digital micromirror elements (DMD) or laser instrument and the combination of scanning galvanometer.
There is the covering plate 31 covering surface, cover plate 31 in curing reaction implementation process for maintaining static or the most motionless
The element transparent to irradiation source, cause polymerizable liquid solidification energy can pass through cover plate be irradiated to cover surface.
In the present embodiment, cover plate 31 fixing on the body construction, and be positioned at liquid tank 6.Certainly, covering plate can also
It is fixed on liquid tank 6.Liquid tank 6 loads enough polymerizable liquids, make covering surface below polymerizable liquid liquid level,
So polymerizable liquid will produce certain pressure to covering surface, increases the flowing velocity of polymerizable liquid with this, in work
Platform 5 can quickly fill with follow-up structure region during declining.
Workbench 5, workbench 5, for carrying the three-dimensional body of structure, is connected with an electric platforms moving up and down,
Move up and down under the driving of control unit 7.The structure region of three-dimensional body, work is limited between workbench 5 and covering surface
Platform upper surface is exactly to build the height of three-dimensional body to the distance on covering surface.When implementing curing reaction, workbench 5 is to moving down
Dynamic, its speed moved down and/or cycle are adjusted by control unit 7 as the case may be.
Liquid tank 6, is used for accommodating polymerizable liquid, and before curing reaction is implemented, polymerizable liquid need to load liquid tank 6, until
Liquid level is not less than described covering surface.In solidification implementation process, polymerizable liquid can fill structure region.In the present embodiment
Liquid tank 6 can be hatch frame, when in solidification process, polymerizable liquid change in volume is more apparent, and can liquid make-up.
Control unit 7, in order to control workbench 5 motion and the intensity of irradiation source 2 radiation and shape.
In order to improve the sealing of liquid tank 6, can arrange in the installation position of each parts (such as workbench 5) with liquid tank 6
Sealing ring.
It addition, can separate with no damage with covering between surface for ensureing consolidation zone, can in the way of using first embodiment,
Do not repeat them here.
Above, embodiment of the present utility model is illustrated.But, this utility model is not limited to above-mentioned embodiment.
All within spirit of the present utility model and principle, any modification, equivalent substitution and improvement etc. done, should be included in this reality
Within novel protection domain.
Claims (14)
1. a 3D printing device, this equipment includes irradiation source, workbench and liquid tank, and workbench is for carrying the three-dimensional body of structure；Liquid tank builds the polymerizable liquid of three-dimensional body for containing, it is characterised in that this equipment also includes covering plate, and this covering plate is positioned in liquid tank, or is positioned at the top of liquid tank；Irradiation source is from covering irradiation above plate, and this covering plate is the element transparent to irradiation source；The lower surface covering plate is covering surface, covers surface and keep contacting with polymerizable liquid in print procedure.
3D printing device the most according to claim 1, it is characterised in that in print procedure, covers surface and maintains static.
3D printing device the most according to claim 1 and 2, it is characterised in that when described covering plate is positioned at the top of liquid tank, covers plate and forms hermetic container with liquid tank or have the container of opening；When this covering plate is positioned in liquid tank, covering plate and be fixed in the agent structure of 3D printing device or on liquid tank, liquid tank is hermetic container or the container with opening.
3D printing device the most according to claim 1 and 2, it is characterized in that, described covering plate is semipermeability element, polymerization inhibitor can infiltrate into described covering surface through described semipermeability element, thus suppression cured layer is formed on described covering surface, described polymerization inhibitor is for suppressing the solidification of described polymerizable liquid.
3D printing device the most according to claim 4, it is characterised in that described semipermeability element is semipermeable polymer, cellular glass, nucleopore membranes element, micropore quartz crystal unit, micropore Muscovitum element, or combinations thereof；Or, semipermeability element has the oxygen permeability not less than 10 bars.
3D printing device the most according to claim 4, it is characterised in that described suppression cured layer has the thickness no less than 5 μm.
3D printing device the most according to claim 4, it is characterised in that arrange the support component of rigidity at described semipermeability member outboard or inside, for increasing the rigidity of semipermeability element.
3D printing device the most according to claim 4, it is characterised in that polymerization inhibitor passes through naturally or pressurization is through described semipermeability element.
3D printing device the most according to claim 1 and 2, it is characterised in that the surface that covers covering plate uses the polymerizable liquid to solidification not have viscosity or the less material of viscosity or element.
3D printing device the most according to claim 9, it is characterised in that described do not have viscosity or the less element of viscosity selected from Teflon element, silica gel component, polydimethylsiloxane element, perfluoroethylene-propylene element, or combinations thereof.
11. 3D printing devices according to claim 1 and 2, it is characterised in that described polymerizable liquid comprises free radical polymerizing resin, its corresponding curing inhibitors is air, pure oxygen or oxygen-rich mixture body.
12. 3D printing devices according to claim 1 and 2, it is characterized in that, when described covering plate is with liquid tank composition hermetic container, described equipment also includes liquid pump, pressure detector and control unit, pressure detector is for detecting the pressure change in hermetic container, the pressure change that control unit detects according to pressure detector, drives liquid pump pumping polymerizable liquid, to maintain the pressure in hermetic container.
13. 3D printing devices according to claim 1 and 2, it is characterised in that this equipment also includes motor and control unit, motor drives workbench to move up and down under the control of the control unit.
14. 3D printing devices according to claim 1 and 2, it is characterised in that sealing ring is set in the installation position of liquid tank.
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| WO2017120806A1 (en) * | 2016-01-13 | 2017-07-20 | 中国科学院福建物质结构研究所 | 3d printing apparatus and method |
| CN106976230A (en) * | 2016-01-13 | 2017-07-25 | 中国科学院福建物质结构研究所 | A kind of 3D printing apparatus and method |
| CN109228316A (en) * | 2018-10-22 | 2019-01-18 | 泰州极光电子科技有限公司 | A kind of quick 3D printing system |
| CN110062690A (en) * | 2016-12-14 | 2019-07-26 | 卡本有限公司 | The continuous liquid interface production for monitoring and feeding back with power |
| CN110524875A (en) * | 2019-08-23 | 2019-12-03 | 源秩科技（上海）有限公司 | A kind of photocuring 3D printing device |
| CN113365796A (en) * | 2018-12-11 | 2021-09-07 | Io技术集团公司 | System and method for preventing oxygen inhibition of photoinitiated polymerization reactions in 3D printing systems using uniform planar surfaces |
| CN114126838A (en) * | 2019-07-18 | 2022-03-01 | 波士胶公司 | 3D printing method and system |
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| CN106976230B (en) * | 2016-01-13 | 2019-08-20 | 中国科学院福建物质结构研究所 | A kind of 3D printing device and method |
| CN106976230A (en) * | 2016-01-13 | 2017-07-25 | 中国科学院福建物质结构研究所 | A kind of 3D printing apparatus and method |
| US11123920B2 (en) | 2016-01-13 | 2021-09-21 | Fujian Institute Of Research On The Structure Of Matter, Chinese Academy Of Science | 3D printing apparatus and method |
| WO2017120806A1 (en) * | 2016-01-13 | 2017-07-20 | 中国科学院福建物质结构研究所 | 3d printing apparatus and method |
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| CN113365796B (en) * | 2018-12-11 | 2023-03-21 | Io技术集团公司 | System and method for preventing oxygen inhibition of photoinitiated polymerization reactions in 3D printing systems using uniform planar surfaces |
| US11673328B2 (en) | 2018-12-11 | 2023-06-13 | Io Tech Group Ltd. | Methods for preventing oxygen inhibition of a light-initiated polymerization reaction in a 3D printing system using inert gas |
| CN114126838A (en) * | 2019-07-18 | 2022-03-01 | 波士胶公司 | 3D printing method and system |
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