CN105946239A - Digitization plane projection 3D forming device and method for high-viscosity photosensitive hybrid material - Google Patents
Digitization plane projection 3D forming device and method for high-viscosity photosensitive hybrid material Download PDFInfo
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- CN105946239A CN105946239A CN201610504322.9A CN201610504322A CN105946239A CN 105946239 A CN105946239 A CN 105946239A CN 201610504322 A CN201610504322 A CN 201610504322A CN 105946239 A CN105946239 A CN 105946239A
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y40/00—Auxiliary operations or equipment, e.g. for material handling
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Abstract
The invention discloses a digitization plane projection 3D forming device and method for a high-viscosity photosensitive hybrid material. The device comprises a working table, a forming mechanism arranged on the working table, a slurry box for containing the photosensitive resin material and a digitization projection ultraviolet source device arranged below the working table; the section shape of the slurry box is of a round structure, and the slurry box comprises a slurry box outer layer cylinder and a rotary slurry box inner layer cylinder arranged in the slurry box outer layer cylinder; a scraping plate mechanism is further arranged on the working table; when the rotary slurry box inner layer cylinder rotates, the scraping plate mechanism evenly spreads out the liquid-state photosensitive resin material contained in the rotary slurry box inner layer cylinder, and the surface of the photosensitive resin material is flat and even in the horizontal face direction; and the device is low in construction cost, the technical means is simple, convenient and easy to implement, and the technical problems that according to an existing digitization plane projection 3D forming device, when the high-viscosity photosensitive hybrid material which is poor in liquidity and not suitable for being spread out is adopted as the forming material, forming is difficult, forming speed is low, and forming precision is low are effectively solved.
Description
Technical field
The present invention relates to face projection 3D forming device, particularly relate to a kind of high viscosity photosensitive mixing material numeral
Change face projection 3D forming device and method.
Background technology
It is novel rapid prototyping & manufacturing technology that 3D prints.Threedimensional model is cut into slices by it by special-purpose software
Layering, it is thus achieved that cross-section data, is then introduced into rapid forming equipment, uses the method system that material successively adds up
Make the technology of entity component.By successively adding up, the manufacture of random geometry part can be nearly completed,
Possess processing single-piece, small lot, complex geometry, the advantage of dense structure.
Some materials such as pottery, owing to height is hard, wear-resisting, comprcssive strength, naturally purity, glittering and translucent,
The features such as color and luster is true to nature obtain extensively application.But, the selective laser that the at present material molding such as pottery is conventional
Smelting technology, selective laser sintering its often there is bigger drawback, such as selective laser smelting technology becomes
In type, stress is very big, and the sample formed out often ftractures, and performance is excessively poor, and selective laser sintering
Needing pottery overlay film, the additional comparison of its material cost is high, and formed precision forming efficiency is limited significantly
System.
High viscosity photosensitive mixing material, as pottery with photosensitive resin mixed slurry, due to poor fluidity, no
The reason such as preferably sprawling, existing 3D forming device is difficult to molding, the most quickly, done with high accuracy high viscosity
It is a current difficult problem that the 3D of photosensitive mixing material shapes.
Summary of the invention
It is an object of the invention to overcome the shortcoming and defect of above-mentioned prior art, it is provided that a kind of high viscosity light
Quick mixing material digitized face projection 3D forming device and method.Solve prior art and use high viscosity light
Quick mixing material (such as pottery and photosensitive resin mixed slurry) due to poor fluidity, the reason such as should not sprawl,
And cause the technical problems such as molding is difficult, shaping speed is slow, formed precision is low.
The present invention is achieved through the following technical solutions:
A kind of high viscosity photosensitive mixing material digitized face projection 3D forming device, including control system, work
Station, the shaping mechanism being placed on workbench, be placed on workbench for containing photosensitive resin material
Slurry box and be placed in the digitized projection ultraviolet source equipment below workbench；The fortune of described shaping mechanism
The operating instruction of dynamic, digitized projection ultraviolet source equipment is by control system control；
The cross sectional shape of described slurry box is circular configuration, and it includes slurry box outer layer cylinder 11 and disposed within
Rotation slurry box internal layer cylinder 10, rotate slurry box internal layer cylinder 10 driven it at slurry box outer layer cylinder by motor
360 ° of rotations clockwise or counter-clockwise in 11；
A scraping plate mechanism it is additionally provided with on described workbench；When rotating slurry box internal layer cylinder 10 and rotating, scraper plate
The photosensitive resin material of the liquid that mechanism contains in rotating slurry box internal layer cylinder 10 is uniformly sprawled, and makes photosensitive
Direction along the horizontal plane, the surface of resin material is smooth, uniform.
Described scraping plate mechanism includes grader leveling blade 8, cantilever 9, axle 12 and lifting base station 13；
Grader leveling blade 8 is placed in above the photosensitive resin material rotated in slurry box internal layer cylinder 10, grader leveling blade
The lower edge of 8 contacts with the liquid level of photosensitive resin material；One end of cantilever 9 connects grader leveling blade 8, separately
One end is arranged on lifting base station 13 by axle 12；The height of regulation lifting base station 13, change level is scraped
The degree of depth that the lower limb of plate 8 contacts with the liquid level of photosensitive resin material, and then change photosensitive resin material
Sprawl thickness.
When lifting base station 13 and raising, the lower limb of grader leveling blade 8 contacts the degree of depth with photosensitive resin material
Shoal；When lifting base station 13 and reducing, the lower limb of grader leveling blade 8 is deep with contacting of photosensitive resin material
Degree is deepened.
The lower limb of described grader leveling blade 8 is that line contacts with face with contacting of photosensitive resin material.
One end of described grader leveling blade 8 extends to the inwall direction rotating slurry box internal layer cylinder 10, and with interior
Wall sliding contact, the other end extends to the circular direction rotating slurry box internal layer cylinder 10；
Grader leveling blade 8 with cantilever 9 for being flexibly connected, and the adjustable angle between them.
Described grader leveling blade 8 is ceramic material.
The length of described grader leveling blade 8≤rotation slurry box internal layer cylinder 10 radius.
Described shaping mechanism includes being arranged on the linear electric motors guide rail 2 of workbench side, being arranged on linear electric motors
Z axis slide block 1 on guide rail 2, the shaping substrate 6 being arranged on Z axis slide block 1；Shaping substrate 6 is followed
Z axis slide block 1 vertically moves above rotation slurry box internal layer cylinder 10 up and down.Shaping substrate 6 passes through
Z axis slide block 1 upper platen 5 is fixed on the draw-in groove of Z axis slide block 1.
Described digitized projection ultraviolet source equipment includes digitized projection ultraviolet source generator 4 and projection
Reflecting plate 14；
The projected light beam 15 that digitized projection ultraviolet source generator 4 is launched by projection reflecting plate 14, projection
To the photosensitive resin material surface rotated in slurry box internal layer cylinder 10, and control projected light beam 15 photosensitive
Resin material surface X and the movement of Y-direction, it is achieved the Stereolithography of the photosensitive resin material of liquid.
A kind of high viscosity photosensitive mixing material digitized face projection 3D forming device is during formation of parts
Operation method, comprise the steps:
(1) by threedimensional model good to Top-Down Design or reversal design, discrete layering is carried out by delamination software；
(2) according to individual-layer data, the ultraviolet source of digitized projection ultraviolet source equipment is modulated to layering
Data surface projects；
(3) Z axis slide block 1 drives shaping substrate 6 descending, when lower surface and the photosensitive tree of shaping substrate 6
Stop descending during fat material surface contact；Projected light beam data and photosensitive resin material surface react also
Solidification is attached to the lower surface of shaping substrate 6, completes current layer solidification；
(4), after current layer solidification, Z axis slide block 1 drives shaping substrate 6 to rise one layer, makes to be attached to into
Cured layer on type substrate 6 departs from the liquid level of photosensitive resin material；
(5) rotation slurry box internal layer cylinder 10 is under motor drives, and persistently makees 360 ° of rotations；The light of liquid
Quick resin material follows rotation slurry box internal layer cylinder 10 synchronous axial system, and its surface is struck off by pottery grader leveling blade,
And recover to horizontal plane state smooth, uniform；
(6) Z axis slide block 1 drives shaping substrate 6 descending, makes cured layer and photosensitive resin material liquid circle
Stop descending during the contact of face；
(7) repetitive cycling step 3 is to step 6；Until last layer of data for projection is sent out with photosensitive resin material
Raw reaction, after having solidified, takes off sample；
(8) being sintered by high-temperature sample, defat obtains final fine and close form forming part.
The present invention, relative to prior art, has such advantages as and effect:
Present invention employs the slurry box of circle, it includes slurry box outer layer cylinder and rotation disposed within slurry
Magazine internal layer cylinder, rotate slurry box internal layer cylinder by motor drive its in slurry box outer layer cylinder clockwise or
360 ° of rotations counterclockwise；A scraping plate mechanism it is additionally provided with on workbench；When rotating slurry box internal layer cylinder and rotating,
The photosensitive resin material of the liquid that scraping plate mechanism contains in rotating slurry box internal layer cylinder is uniformly sprawled, and makes light
Direction along the horizontal plane, the surface of quick resin material is smooth, uniform.Owing to using rotatable slurry box internal layer cylinder
And grader leveling blade, high viscosity photosensitive mixing material can be by the rotation of rotatable slurry box internal layer cylinder, by water
Flat scraper plate is sprawled on the table uniformly.
The present invention is the scraping plate mechanism of lift, and it includes grader leveling blade, cantilever, axle and lifting base station；
Grader leveling blade is placed in above the photosensitive resin material rotated in slurry box internal layer cylinder, the lower side of grader leveling blade
Edge contacts with the liquid level of photosensitive resin material；One end of cantilever connects grader leveling blade, and the other end passes through axle (12)
It is arranged on lifting base station；The height of regulation lifting base station, changes the lower limb of grader leveling blade and photosensitive tree
Fat material liquid level contact the degree of depth, and then change photosensitive resin material sprawl thickness.Can owing to using
Increase fall base station, i.e. can control directly by the height of lifting base station regulation grader leveling blade distance shaped platform
Thickness sprawled by high viscosity processed photosensitive mixing material, so that the parameter such as moulding material, molding thickness can basis
Need directly regulation.
Present invention employs the linear electric motors guide rail of precision, forming board can be by being fixed on linear electric motors guide rail
On Z axis slide block, linear electric motors control it and move up and down along guide rail, it is achieved photosensitive resin material is successively
Cumulative molding, can realize the high-precision modeling of different high viscosity photosensitive mixing material, to existing digitized face
The molding that projection 3D former realizes high viscosity photosensitive mixing material is significant.
The present invention is cheap, and technological means is simple and easy to do, efficiently solves existing digitized face projection 3D
Forming device, is using poor fluidity, the high viscosity photosensitive mixing material that should not sprawl as moulding material
Time, the technical barriers such as the molding run into is difficult, shaping speed is slow, formed precision is low.
Accompanying drawing explanation
Fig. 1 is that high viscosity of the present invention photosensitive mixing material digitized face projects 3D forming device structural representation
Figure.
Fig. 2 is that high viscosity of the present invention photosensitive mixing material digitized face projects 3D forming device left view.
Fig. 3 is high viscosity of the present invention photosensitive mixing material digitized face projection 3D forming device work signal
Figure.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is more specifically described in detail.
Embodiment
As shown in Figures 1 to 3.The invention discloses the projection of a kind of high viscosity photosensitive mixing material digitized face
3D forming device, including control system, workbench, the shaping mechanism being placed on workbench, is placed in work
Being used on platform contains the slurry box of photosensitive resin material and is placed in the digitized projection purple below workbench
Outer light source；The motion of described shaping mechanism, digitized projection ultraviolet source equipment operating instruction by
Control system controls；
The cross sectional shape of described slurry box is circular configuration, and it includes slurry box outer layer cylinder 11 and disposed within
Rotation slurry box internal layer cylinder 10, rotate slurry box internal layer cylinder 10 driven it at slurry box outer layer cylinder by motor
360 ° of rotations clockwise or counter-clockwise in 11；
A scraping plate mechanism it is additionally provided with on described workbench；When rotating slurry box internal layer cylinder 10 and rotating, scraper plate
The photosensitive resin material of the liquid that mechanism contains in rotating slurry box internal layer cylinder 10 is uniformly sprawled, and makes photosensitive
Direction along the horizontal plane, the surface of resin material is smooth, uniform.
Described scraping plate mechanism includes grader leveling blade 8, cantilever 9, axle 12 and lifting base station 13；
Grader leveling blade 8 is placed in above the photosensitive resin material rotated in slurry box internal layer cylinder 10, grader leveling blade
The lower edge of 8 contacts with the liquid level of photosensitive resin material；One end of cantilever 9 connects grader leveling blade 8, separately
One end is arranged on lifting base station 13 by axle 12；The height of regulation lifting base station 13, change level is scraped
The degree of depth that the lower limb of plate 8 contacts with the liquid level of photosensitive resin material, and then change photosensitive resin material
Sprawl thickness, to be applicable to the molding of variety classes photosensitive resin material, as high in poor fluidity, viscosity
Pottery and photosensitive resin mixed slurry etc..
When lifting base station 13 and raising, the lower limb of grader leveling blade 8 contacts the degree of depth with photosensitive resin material
Shoal；When lifting base station 13 and reducing, the lower limb of grader leveling blade 8 is deep with contacting of photosensitive resin material
Degree is deepened.The altitude mixture control of lifting base station 13, can realize the molding of variety classes photosensitive resin material.
The lower limb of described grader leveling blade 8 is that line contacts with face with contacting of photosensitive resin material, so that its
The liquid level of photosensitive resin material is more smooth, bright and clean.
One end of described grader leveling blade 8 extends to the inwall direction rotating slurry box internal layer cylinder 10, and with interior
Wall sliding contact, the other end extends to the circular direction rotating slurry box internal layer cylinder 10；
Grader leveling blade 8 with cantilever 9 for being flexibly connected, and the adjustable angle between them.Can well fit
The Workpiece shaping that should require in different structure shape, size and special process.
Described grader leveling blade 8 is ceramic material.
The length of described grader leveling blade 8≤rotation slurry box internal layer cylinder 10 radius.
Described shaping mechanism includes being arranged on the linear electric motors guide rail 2 of workbench side, being arranged on linear electric motors
Z axis slide block 1 on guide rail 2, the shaping substrate 6 being arranged on Z axis slide block 1；Shaping substrate 6 is followed
Z axis slide block 1 vertically moves above rotation slurry box internal layer cylinder 10 up and down.Shaping substrate 6 passes through
Z axis slide block 1 upper platen 5 is fixed on the draw-in groove of Z axis slide block 1.
The lower surface of described shaping substrate 6 is a chain-wales downwardly extended, and uses inverted mode to pass through Z
Axle slide block 1 is fixed on (accurate) linear electric motors guide rail 2；
Described digitized projection ultraviolet source equipment includes digitized projection ultraviolet source generator 4 and projection
Reflecting plate 14；
The projected light beam 15 that digitized projection ultraviolet source generator 4 is launched by projection reflecting plate 14 is (specific
Wavelength and the ultraviolet light of intensity), project to rotate the photosensitive resin material surface in slurry box internal layer cylinder 10,
And control projected light beam 15 in photosensitive resin material surface X and the movement of Y-direction, it is achieved the light of liquid
The Stereolithography of quick resin material.
High viscosity of the present invention photosensitive mixing material digitized face projection 3D forming device is in formation of parts process
In operation method, comprise the steps:
(1) by threedimensional model good to Top-Down Design or reversal design, discrete layering is carried out by delamination software；
(2) according to individual-layer data, the ultraviolet source of digitized projection ultraviolet source equipment is modulated to layering
Data surface projects；
(3) Z axis slide block 1 drives shaping substrate 6 descending, when lower surface and the photosensitive tree of shaping substrate 6
Stop descending during fat material surface contact；(high viscosity is photosensitive mixed for projected light beam data and photosensitive resin material
Condensation material) surface reacts and solidifies the lower surface being attached to shaping substrate 6, completes current layer solidification
(providing solidification attachment point for next layer)；
(4), after current layer solidification, Z axis slide block 1 drives shaping substrate 6 to rise one layer, makes to be attached to molding
Cured layer on substrate 6 departs from the liquid level of photosensitive resin material；
(5) rotation slurry box internal layer cylinder 10 is under motor drives, and persistently makees 360 ° of rotations；The light of liquid
Quick resin material follows rotation slurry box internal layer cylinder 10 synchronous axial system, and its surface is struck off by pottery grader leveling blade,
And recover to horizontal plane state smooth, uniform.Before work, need to be in advance by the lifting base of scraping plate mechanism
Platform 13, sets the degree of depth that grader leveling blade 8 contacts with photosensitive resin material, for molding thickness.
(6) Z axis slide block 1 drives shaping substrate 6 descending, makes cured layer and photosensitive resin material liquid circle
Stop descending during the contact of face；
(7) repetitive cycling step 3 is to step 6；Until last layer of data for projection is sent out with photosensitive resin material
Raw reaction, after having solidified, takes off sample；
(8) being sintered by high-temperature sample, defat obtains final fine and close form forming part.
As it has been described above, just can preferably realize the present invention.
Embodiments of the present invention are also not restricted to the described embodiments, and other are any without departing from the present invention's
The change made under spirit and principle, modify, substitute, combine, simplify, all should be putting of equivalence
Change mode, within being included in protection scope of the present invention.
Claims (10)
1. high viscosity photosensitive mixing material digitized face projection a 3D forming device, including control system,
Workbench, the shaping mechanism being placed on workbench, be placed on workbench for containing photosensitive resin material
Slurry box and be placed in the digitized projection ultraviolet source equipment below workbench；Described shaping mechanism
Motion, digitized projection ultraviolet source equipment operating instruction by control system control；
It is characterized in that: the cross sectional shape of described slurry box is circular configuration, it includes slurry box outer layer cylinder
(11) and rotation slurry box internal layer cylinder (10) disposed within, slurry box internal layer cylinder (10) is rotated by electricity
Machine drives its 360 ° of rotation clockwise or counter-clockwise in slurry box outer layer cylinder (11)；
A scraping plate mechanism it is additionally provided with on described workbench；When rotating slurry box internal layer cylinder (10) and rotating,
The photosensitive resin material of the liquid that scraping plate mechanism contains in rotating slurry box internal layer cylinder (10) is uniformly sprawled,
The direction along the horizontal plane, surface making photosensitive resin material is smooth, uniform.
High viscosity photosensitive mixing material digitized face projection 3D forming device the most according to claim 1,
It is characterized in that: described scraping plate mechanism includes grader leveling blade (8), cantilever (9), axle (12) and lifting
Base station (13)；
Grader leveling blade (8) is placed in above the photosensitive resin material rotated in slurry box internal layer cylinder (10), water
The lower edge of flat scraper plate (8) contacts with the liquid level of photosensitive resin material；One end of cantilever (9) connects
Grader leveling blade (8), the other end is arranged in lifting base station (13) by axle (12)；Regulation lifting base
The height of platform (13), the lower limb of change grader leveling blade (8) contacts with the liquid level of photosensitive resin material
The degree of depth, so change photosensitive resin material sprawl thickness.
High viscosity photosensitive mixing material digitized face projection 3D forming device the most according to claim 2,
It is characterized in that: when lifting base station (13) and raising, the lower limb of grader leveling blade (8) and photosensitive resin
The contact depth shallower of material；When lift base station (13) reduce time, the lower limb of grader leveling blade (8) with
The contact depth down of photosensitive resin material.
High viscosity photosensitive mixing material digitized face projection 3D forming device the most according to claim 2,
It is characterized in that: the lower limb of described grader leveling blade (8) is that line connects with face with contacting of photosensitive resin material
Touch.
High viscosity photosensitive mixing material digitized face projection 3D forming device the most according to claim 2,
It is characterized in that: one end of described grader leveling blade (8) is to the inwall side rotating slurry box internal layer cylinder (10)
To extension, and with inwall sliding contact, the other end to rotate slurry box internal layer cylinder (10) circular direction
Extend；
Grader leveling blade (8) with cantilever (9) for being flexibly connected, and the adjustable angle between them.
High viscosity photosensitive mixing material digitized face projection 3D forming device the most according to claim 5,
It is characterized in that: described grader leveling blade (8) is ceramic material.
High viscosity photosensitive mixing material digitized face projection 3D forming device the most according to claim 2,
It is characterized in that: the length of described grader leveling blade (8)≤rotation slurry box internal layer cylinder (10) radius.
8. project according to the photosensitive mixing material digitized of high viscosity according to any one of claim 1 to 7 face
3D forming device, it is characterised in that: described shaping mechanism includes the linear electric motors being arranged on workbench side
Guide rail (2), the Z axis slide block (1) being arranged on linear electric motors guide rail (2), it is arranged on Z axis slide block (1)
On shaping substrate (6)；Shaping substrate (6) is followed Z axis slide block (1) and is being rotated slurry box internal layer cylinder
(10) top vertically moves up and down；Shaping substrate (6) passes through Z axis slide block (1) upper platen
(5) it is fixed on the draw-in groove of Z axis slide block (1).
High viscosity photosensitive mixing material digitized face projection 3D forming device the most according to claim 8,
It is characterized in that: described digitized projection ultraviolet source equipment includes digitized projection ultraviolet source generator
(4) and projection reflecting plate (14)；
The projected light beam (15) that digitized projection ultraviolet source generator (4) is launched by projection reflecting plate (14),
Project to rotate the photosensitive resin material surface in slurry box internal layer cylinder (10), and control projected light beam (15)
In photosensitive resin material surface X and the movement of Y-direction, it is achieved the photocuring of the photosensitive resin material of liquid
Molding.
10. the photosensitive mixing of high viscosity according to any one of claim 1 to 9 material digitized face projection 3D
Forming device operation method during formation of parts, comprises the steps:
(1) by threedimensional model good to Top-Down Design or reversal design, discrete layering is carried out by delamination software；
(2) according to individual-layer data, the ultraviolet source of digitized projection ultraviolet source equipment is modulated to layering
Data surface projects；
(3) Z axis slide block (1) drives shaping substrate (6) descending, when the lower surface of shaping substrate (6)
Stop descending when contacting with photosensitive resin material surface；Projected light beam data are sent out with photosensitive resin material surface
Raw reaction also solidifies the lower surface being attached to shaping substrate (6), completes current layer solidification；
(4), after current layer solidification, Z axis slide block (1) drives shaping substrate (6) to rise one layer, makes attached
The cured layer on shaping substrate (6) and depart from the liquid level of photosensitive resin material；
(5) rotation slurry box internal layer cylinder (10) is under motor drives, and persistently makees 360 ° of rotations；Liquid
Photosensitive resin material follows rotation slurry box internal layer cylinder (10) synchronous axial system, and its surface is scraped by pottery level
Plate strikes off, and recovers to horizontal plane state smooth, uniform；
(6) Z axis slide block (1) drives shaping substrate (6) descending, makes cured layer and photosensitive resin material
Stop descending during liquid surface contact；
(7) repetitive cycling step (3) is to step (6)；Until last layer of data for projection and photosensitive resin
Material reacts, and after having solidified, takes off sample；
(8) being sintered by high-temperature sample, defat obtains final fine and close form forming part.
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| CN201610504322.9A CN105946239A (en) | 2016-06-28 | 2016-06-28 | Digitization plane projection 3D forming device and method for high-viscosity photosensitive hybrid material |
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Cited By (9)
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| CN106273506A (en) * | 2016-09-29 | 2017-01-04 | 浙江迅实科技有限公司 | 3D printing equipment Sheng Ye mechanism |
| CN106476114A (en) * | 2016-09-29 | 2017-03-08 | 浙江迅实科技有限公司 | A kind of 3D printing device and Method of printing |
| CN107901186A (en) * | 2017-11-03 | 2018-04-13 | 立方通达实业（天津）有限公司 | A kind of 3D printing ejecting device for being used to build |
| CN109016506A (en) * | 2017-06-08 | 2018-12-18 | 扬明光学股份有限公司 | Three-dimensional printing device |
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| WO2020119591A1 (en) * | 2018-12-11 | 2020-06-18 | 上海普利生机电科技有限公司 | Three-dimensional printing equipment and scraper assembly therefor |
| CN111558714A (en) * | 2020-04-29 | 2020-08-21 | 湖南华曙高科技有限责任公司 | Indirect forming equipment for three-dimensional object and forming method thereof |
| TWI770029B (en) * | 2017-05-31 | 2022-07-11 | 揚明光學股份有限公司 | Three dimensional printing device |
| CN115922872A (en) * | 2022-12-07 | 2023-04-07 | 西安交通大学 | Scraper device for mask photocuring 3D printer and mask photocuring 3D printer |
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