CN107856304A - A kind of 3D printing device - Google Patents
A kind of 3D printing device Download PDFInfo
- Publication number
- CN107856304A CN107856304A CN201711336375.5A CN201711336375A CN107856304A CN 107856304 A CN107856304 A CN 107856304A CN 201711336375 A CN201711336375 A CN 201711336375A CN 107856304 A CN107856304 A CN 107856304A
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- China
- Prior art keywords
- printing
- printing device
- installing plate
- frame
- elevating mechanism
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
Abstract
The present invention relates to 3D printing technique field, more particularly to a kind of 3D printing device.3D printing device provided by the invention includes frame, rotating mechanism, elevating mechanism, printing mechanism, multiple charging trays and projector mechanism.Wherein, rotating mechanism, multiple charging trays, projector mechanism are arranged in frame, elevating mechanism is arranged on rotating mechanism, printing mechanism is slided along elevating mechanism and set, and including multiple print platforms, multiple charging trays are accordingly arranged at the lower section of multiple print platforms respectively, and each projector mechanism is arranged on the lower section of corresponding charging tray.When each product for needing to print carries out product thickness phase corresponding to each step meanwhile, it is capable to effectively improve the printing effect of 3D printing device；When the dyestuff that different colours are held in multiple charging trays, it is ensured that the variation of product color.3D printing device provided by the invention, by changing the pigment in charging tray, it is possible to achieve above two printing model is switched fast, and ensures the variation of 3D printing apparatus function.
Description
Technical field
The present invention relates to 3D printing technique field, more particularly to a kind of 3D printing device.
Background technology
3D printer be it is a kind of by metal, nonmetallic, bonding agent, plastic or other material by Design of Mechanical Structure in space
The equipment of accumulation molding.Most of three-dimensional printing demand can be met using 3D printer, its application is very extensive, is related to precision
Multiple industries such as manufacturing industry, mould processing, medical treatment, electronics, food.Wherein, DLP (Digital Light Processing, light
Solidification face is molded digital light processing) it is imaging technique of the use in projecting apparatus and back projection TV, in recent years, DLP
Technology is applied to 3D printing industry, and (Stereo Lithography Apparatus, are light-cured into its principle with SLA substantially
Type method) identical, only each one face of laser formation so that shaping speed greatly promotes.
It can be moved up and down as shown in figure 1, traditional 3D printer using DLP technologies generally comprises one along support frame 1 '
Holding station 41 ', be provided with the lower section of holding station 41 ' place dyestuff charging tray 5 ', the lower section of charging tray 5 ' is provided with throwing
Shadow instrument 6 '.The of short duration exposure of different pattern is carried out to the holding station 41 ' being immersed in dyestuff by projecting apparatus 6 ', realizes dyestuff
Curing molding, by multiple curing molding, the 3D printing of product can be completed.But traditional 3D printer printing effect
Low, the product color of printing is single and function is single.
The content of the invention
The present invention first purpose be to propose a kind of 3D printing device, can carry out more than one piece product simultaneously print beat
Watermark patterns, improve printing effect.
Second object of the present invention is to propose a kind of 3D printing device, can also carry out beating for single products multi-color printing
Watermark patterns, realize the variation of product color.
Third object of the present invention is to propose a kind of 3D printing device, realized fast between above two printing model
Speed switching, realizes the variation of the 3D printing apparatus function.
To use following technical scheme up to this purpose, the present invention：
A kind of 3D printing device, including frame, in addition to：
Rotating mechanism, it is arranged in the frame；
Elevating mechanism, it is arranged on the rotating mechanism；
Printing mechanism, slide and set along the elevating mechanism, and including multiple print platforms；
Multiple charging trays, it is arranged in the frame, multiple charging trays are accordingly arranged at multiple printings respectively
The lower section of platform；And
Multiple projector mechanisms, it is arranged in the frame, each projector mechanism is arranged on the corresponding charging tray
Lower section.
Further, the first position limiting structure, the first spacing knot are provided with the frame and/or the elevating mechanism
Structure is located at the lower section of at least one printing mechanism.
Further, the 3D printing device also includes the second position limiting structure, and second position limiting structure is arranged on described
In frame, the elevating mechanism convex is provided with limited block, and the limited block can be in contact with second position limiting structure.
Further, the elevating mechanism includes：
Screw-nut structure, including leading screw and the nut being set on the leading screw, the printing mechanism is fixed on described
The periphery of nut；
First installing plate, one end of the leading screw, which rotates, to be arranged at and passes through first installing plate；
Second installing plate, it is oppositely arranged with first installing plate, and the other end of the leading screw rotates and is arranged at and wears
Cross second installing plate；And
Rotary driving part, the output end of the rotary driving part are connected with one end of the leading screw.
Further, the first fixed seat is provided with first installing plate, second is provided with second installing plate
Fixed seat, the both ends of the leading screw are arranged in first fixed seat and second fixed seat respectively.
Further, the elevating mechanism also includes：
Guide pillar, it is arranged between first installing plate and second installing plate, is provided with and leads on the printing mechanism
Set, the guide pillar are located in the guide pin bushing.
Further, the bottom of the elevating mechanism is convexly equipped with connecting shaft, and the connecting shaft passes through shaft coupling and described turn
The output end of motivation structure is mutually fixed.
Further, bearing fixed seat is provided with the frame, the bearing fixed seat is internally provided with least two
Group bearing, the end face of the bearing fixed seat are fixedly installed bearing baffle, and the connecting shaft sequentially passes through the bearing and fixed
Seat, at least two groups of bearings and the bearing baffle.
Further, mounting hole is offered in the frame, the charging tray is connected in the mounting hole.
Further, the charging tray is made up of light-cured resin.
Beneficial effects of the present invention are：
3D printing device provided by the invention include frame, rotating mechanism, elevating mechanism, printing mechanism, multiple charging trays and
Projector mechanism.Wherein, rotating mechanism, multiple charging trays, projector mechanism are arranged in frame, and elevating mechanism is arranged on rotating mechanism
On, printing mechanism is slided along elevating mechanism and set, and is accordingly arranged at respectively more including multiple print platforms, multiple charging trays
The lower section of individual print platform, each projector mechanism are arranged on the lower section of corresponding charging tray.In the present invention, printed when needs
Each product carry out product thickness corresponding to each step it is identical when, elevating mechanism can drive multiple print platforms to slide, real
Processed while existing more than one piece product, printing equipment is in the printing model of more than one piece product while printing, 3D can be effectively improved
The printing effect of printing equipment；When the dyestuff that different colours are held in multiple charging trays, elevating mechanism drives printing mechanism to slide, and
Rotating mechanism drives printing mechanism to rotate, it is possible to achieve single products by multiple color pigment curing molding, at printing equipment
In the printing model of single products multi-color printing, ensure the variation of product color.3D printing device provided by the invention, only
By changing the pigment in charging tray, it is possible to achieve above two printing model is switched fast, and ensures 3D printing apparatus function
Variation.
Brief description of the drawings
Fig. 1 is the structural representation for the 3D printing device that prior art provides；
Fig. 2 is the structural representation of 3D printing device provided by the invention；
Fig. 3 is the structural representation of the control system of 3D printing device provided by the invention；
Fig. 4 is the structural representation (removing a charging tray) of 3D printing device provided by the invention；
Fig. 5 is the partial enlarged drawing at A in Fig. 4；
Fig. 6 is the top view of 3D printing device provided by the invention；
Fig. 7 is along the sectional view of B-B direction in Fig. 6.
In figure：
1 '-support frame；41 '-holding station；5 '-charging tray；6 '-projecting apparatus；
1- frames；2- rotating mechanisms；3- elevating mechanisms；4- printing mechanisms；5- charging trays；6- projector mechanisms；7- controllers；8-
First position limiting structure；The position limiting structures of 9- second；10- limited blocks；
11- bearing fixed seats；12- bearings；13- bearing baffles；14- mounting holes；
31- leading screws；32- nuts；The installing plates of 33- first；The installing plates of 34- second；35- rotary driving parts；36- first is solid
Reservation；The fixed seats of 37- second；38- connecting shafts；39- guide pillars；
41- print platforms；42- guide pin bushings.
Embodiment
In order that those skilled in the art more fully understand technical scheme, below in conjunction with the accompanying drawings and by specific
Embodiment further illustrates technical scheme.
In the present embodiment, as shown in Fig. 2 3D printing device includes frame 1, rotating mechanism 2, elevating mechanism 3, printer
Structure 4, multiple charging trays 5 and projector mechanism 6.Wherein, rotating mechanism 2, multiple charging trays 5, projector mechanism 6 are arranged in frame 1, are risen
Descending mechanism 3 is arranged on rotating mechanism 2, and printing mechanism 4 is slided along elevating mechanism 3 and set, and including multiple print platforms 41, it is more
Individual charging tray 5 is accordingly arranged at the lower section of multiple print platforms 41 respectively, and each projector mechanism 6 is arranged on corresponding charging tray
5 lower section.In the present embodiment, when need each product for printing carry out product thickness corresponding to each step it is identical when, liter
Descending mechanism 3 can drive multiple print platforms 41 to slide, and be processed while realizing more than one piece product, printing equipment is in more than one piece production
The printing model that product print simultaneously, the printing effect of 3D printing device can be effectively improved；When holding different face in multiple charging trays 5
The dyestuff of color, elevating mechanism 3 drive printing mechanism 4 to slide, and rotating mechanism 2 drives printing mechanism 4 to rotate, it is possible to achieve single-piece
By the pigment curing molding of multiple color, printing equipment is in the printing model of single products multi-color printing, ensures product product
The variation of color.The 3D printing device that the present embodiment provides, only by the pigment changed in charging tray 5, it is possible in realization
Being switched fast for two kinds of printing models is stated, ensures the variation of 3D printing apparatus function.
As shown in Fig. 2 for convenience of explanation, the print platform 41 for now providing the leftmost side is the first print platform, by the inverse time
Other three print platforms 41 in pin direction are followed successively by the second print platform, the 3rd print platform and the 4th print platform.Similarly,
The charging tray 5 for providing the leftmost side is the first charging tray, and other three charging trays 5 counterclockwise are followed successively by the second charging tray, the 3rd material
Disk and the 4th charging tray.The lower section that multiple charging trays 5 are accordingly arranged at multiple print platforms 41 respectively includes following situation：
Situation one：First print platform is oppositely arranged with the first charging tray, and the second print platform is oppositely arranged with the second charging tray,
3rd print platform is oppositely arranged with the 3rd charging tray, and the 4th print platform is oppositely arranged with the 4th charging tray；
Situation two：First print platform is oppositely arranged with the second charging tray, and the second print platform is oppositely arranged with the 3rd charging tray,
3rd print platform is oppositely arranged with the 4th charging tray, and the 4th print platform is oppositely arranged with the first charging tray；
Situation three：First print platform is oppositely arranged with the 3rd charging tray, and the second print platform is oppositely arranged with the 4th charging tray,
3rd print platform is oppositely arranged with the first charging tray, and the 4th print platform is oppositely arranged with the second charging tray；
Situation four：First print platform is oppositely arranged with the 4th charging tray, and the second print platform is oppositely arranged with the first charging tray,
3rd print platform is oppositely arranged with the second charging tray, and the 4th print platform is oppositely arranged with the 3rd charging tray.
It is directed to for the printing model of more than one piece product while printing, while each product printed can be identical
, can be different or incomplete same.But corresponding to each step for being the need to ensure that each product printing
Product thickness is identical, it is possible to achieve the synchronism of each Product processing.The plane pattern that projector mechanism 6 is projected can be with
It is identical, can is different or incomplete same, realizes the variation of 3D printing apparatus function.
As shown in figure 3, the 3D printing device that the present embodiment provides also includes controller 7, controller 7 respectively with rotating mechanism
2nd, elevating mechanism 3, printing mechanism 4 and projector mechanism 6 electrically connect.The printing model of single products multi-color printing is directed to, is had
For body, 3D printing device includes four charging trays 5, holds red, yellow, blue and green four kinds of dyestuffs in four charging trays 5 respectively, if printing
Mechanism 4 can slide 10mm in vertical direction, and the work of elevating mechanism 3 and rotating mechanism 2 ginseng can be set in controller 7
Number, is engaged elevating mechanism 3 and rotating mechanism 2, realizes printing mechanism 4 in 1mm~2mm, a print platform 41 is in
The top of the charging tray 5 of orchil is placed, when printing mechanism 4 is in 2mm~4mm, the print platform 41, which is in, places yellow dye
The top of the charging tray 5 of material, when printing mechanism 4 is in 4mm~6mm, the print platform 41 is in the charging tray 5 of placement blue dyes
Top, when printing mechanism 4 is in 6mm~10mm, the print platform 41 is in the top for the charging tray 5 for placing green colouring material.Printing
Product afterwards includes red, yellow, blue and green four kinds of colors, substantially increases the variation of product color.
As shown in Figure 4 and Figure 5, in the present embodiment, first position limiting structure is provided with the base of elevating mechanism 3
8, the first position limiting structure 8 is positioned at the lower section of a printing mechanism 4, and the first position limiting structure 8 electrically connects with controller 7.Work as printing
When mechanism 4 is moved at the first position limiting structure 8, printing mechanism 4 touches the first position limiting structure 8, and the first position limiting structure 8 will contact
Signal sends to controller 7, controller 7 and controls the stop motion of elevating mechanism 3, can effectively avoid elevating mechanism 3 from running excessively
And cause the damage of elevating mechanism 3.In addition, the position is designated as the initial print position of the vertical direction of printing mechanism 4 by controller 7
Put, by the position limiting structure 8 of printing mechanism 4 and first touching realize for whole elevating mechanism 3 vertically position just
Beginningization.Certainly, the number of the first position limiting structure 8 can also be not limited to one, can be two, three or more, set compared with
The first more position limiting structures 8 can effectively improve detection precision.In addition, the first position limiting structure 8 is except being arranged on elevating mechanism 3
Base on, can also be arranged in frame 1, can also play the effect above.In addition, offering mounting hole 14 in frame 1, expect
Disk 5 is connected in mounting hole 14, can realize that the pattern that projector mechanism 6 is sent smoothly is projected on charging tray 5, specifically, material
Disk 5 can be made up of transparent light-cured resin.In addition, the second spacing knot electrically connected with controller 7 is additionally provided with frame 1
Structure 9, the convex of elevating mechanism 3 are provided with limited block 10, because rotating mechanism 2 drives elevating mechanism 3 to rotate, when limited block 10 and the
When two position limiting structures 9 contact, the second position limiting structure 9 sends activation signal to controller 7, and controller 7 controls rotating mechanism 2 to stop
Rotating, the position is designated as circumferential initial printing position by controller 7, by the touching of the second position limiting structure 9 and limited block 10,
Realize the initialization of the circumferential position of elevating mechanism 3.Specifically, the first position limiting structure 8 and the second position limiting structure 9 can be contacts
Formula limit switch.
As shown in Figure 6 and Figure 7, the present embodiment provide elevating mechanism 3 include screw-nut structure, the first installing plate 33,
Second installing plate 34 and rotary driving part 35, wherein, screw-nut structure includes leading screw 31 and is set on leading screw 31
Nut 32, printing mechanism 4 are fixed on the periphery of nut 32, and one end of leading screw 31, which rotates, to be arranged at and pass through the first installing plate 33,
The other end of leading screw 31 rotates and is arranged at and passes through the second installing plate 34, the output end of rotary driving part 35 and the one of leading screw 31
End is connected.When rotary driving part 35 rotates, leading screw 31 can be driven to rotate, the nut 32 being set on leading screw 31 can
Slided along leading screw 31, and then drive the slip of the in the vertical direction of printing mechanism 4, coordinate the different exposure time of projector mechanism 6
And different pattern, realize curing molding of the print platform 41 in the dyestuff of vertical direction diverse location.In addition, in the first installing plate
The first fixed seat 36 is provided with 33, the second fixed seat 37 is provided with the second installing plate 34, the both ends of leading screw 31 are worn respectively
In the first fixed seat 36 and the second fixed seat 37, the first fixed seat 36 and the second fixed seat 37 can be played for leading screw 31
Supporting role, and can effectively prevent abrasion of the leading screw 31 for the first installing plate 33 and the second installing plate 34.
In addition, as shown in fig. 7, elevating mechanism 3 also includes being arranged between the first installing plate 33 and the second installing plate 34
Guide pillar 39, guide pin bushing 42 is provided with printing mechanism 4, guide pillar 39 is located in guide pin bushing 42, by the cooperation of guide pillar 39 and guide pin bushing 42,
On the one hand guide effect can be played in vertical direction to printing mechanism 4, printing mechanism 4 on the other hand can be prevented along vertical
Direction rotates during sliding, and specifically, the group number of guide pillar 39 and guide pin bushing 42 is preferably two groups and more than two.
In addition, the bottom of elevating mechanism 3 is convexly equipped with connecting shaft 38, connecting shaft 38 is defeated by shaft coupling and rotating mechanism 2
Go out end mutually to fix.Bearing fixed seat 11 is provided with frame 1, bearing fixed seat 11 is internally provided with least two groups of bearings 12,
The end face of bearing fixed seat 11 is fixedly installed bearing baffle 13, and connecting shaft 38 sequentially passes through bearing fixed seat 11, at least two groups
Bearing 12 and bearing baffle 13.By setting at least two groups of bearings 12, it can realize that connecting shaft 38 preferably rotates, by setting
Bearing fixed seat 11 and bearing baffle 13 are put, can effectively avoid the inner ring of bearing 12 from axially being moved caused by stress is excessive
It is dynamic.Certainly, the quantity of bearing 12 is also not limited to two groups, can be three groups, four groups or multigroup.
Pay attention to, the general principle and principal character and advantages of the present invention of the present invention has been shown and described above.The industry
Technical staff it should be appreciated that the present invention is not limited to the embodiments described above, described in above-mentioned embodiment and specification
Merely illustrate the principles of the invention, without departing from the spirit and scope of the present invention, the present invention also have various change and
Improve, these changes and improvements all fall within the protetion scope of the claimed invention, and claimed scope of the invention is by appended
Claims and its equivalent thereof.
Claims (10)
1. a kind of 3D printing device, including frame (1), it is characterised in that also include：
Rotating mechanism (2), it is arranged in the frame (1)；
Elevating mechanism (3), it is arranged on the rotating mechanism (2)；
Printing mechanism (4), slide and set along the elevating mechanism (3), and including multiple print platforms (41)；
Multiple charging trays (5), are arranged in the frame (1), and multiple charging trays (5) are accordingly arranged at multiple described respectively
The lower section of print platform (41)；And
Multiple projector mechanisms (6), are arranged in the frame (1), and each projector mechanism (6) is arranged on corresponding described
The lower section of charging tray (5).
2. 3D printing device according to claim 1, it is characterised in that the frame (1) and/or the elevating mechanism
(3) the first position limiting structure (8) is provided with, first position limiting structure (8) is located under at least one printing mechanism (4)
Side.
3. 3D printing device according to claim 1, it is characterised in that the 3D printing device also includes the second spacing knot
Structure (9), second position limiting structure (9) are arranged in the frame (1), and elevating mechanism (3) convex is provided with limited block
(10), the limited block (10) can be in contact with second position limiting structure (9).
4. the 3D printing device according to any one of claims 1 to 3, it is characterised in that the elevating mechanism (3) includes：
Screw-nut structure, including leading screw (31) and the nut (32) that is set on the leading screw (31), the printing mechanism (4)
It is fixed on the periphery of the nut (32)；
First installing plate (33), one end of the leading screw (31), which rotates, to be arranged at and passes through first installing plate (33)；
Second installing plate (34), it is oppositely arranged with first installing plate (33), and the other end of the leading screw (31) is rotated and set
It is placed in and passes through second installing plate (34)；And
Rotary driving part (35), the output end of the rotary driving part (35) are connected with one end of the leading screw (31).
5. 3D printing device according to claim 4, it is characterised in that be provided with first in first installing plate (33)
Fixed seat (36), the second fixed seat (37) is provided with second installing plate (34), the both ends of the leading screw (31) are worn respectively
In first fixed seat (36) and second fixed seat (37).
6. 3D printing device according to claim 4, it is characterised in that the elevating mechanism (3) also includes：
Guide pillar (39), it is arranged between first installing plate (33) and second installing plate (34), the printing mechanism (4)
On be provided with guide pin bushing (42), the guide pillar (39) is located in the guide pin bushing (42).
7. the 3D printing device according to any one of claims 1 to 3, it is characterised in that the bottom of the elevating mechanism (3)
Connecting shaft (38) is convexly equipped with, the connecting shaft (38) is mutually fixed by the output end of shaft coupling and the rotating mechanism (2).
8. 3D printing device according to claim 7, it is characterised in that be provided with bearing fixed seat on the frame (1)
(11), the bearing fixed seat (11) is internally provided with least two groups of bearings (12), the end face of the bearing fixed seat (11)
It is fixedly installed bearing baffle (13), the connecting shaft (38) sequentially passes through the bearing fixed seat (11), described at least two groups
Bearing (12) and the bearing baffle (13).
9. the 3D printing device according to any one of claims 1 to 3, it is characterised in that offer peace on the frame (1)
Fill hole (14), the charging tray (5) is connected in the mounting hole (14).
10. 3D printing device according to claim 9, it is characterised in that the charging tray (5) is made up of light-cured resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711336375.5A CN107856304B (en) | 2017-12-14 | 2017-12-14 | 3D printing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711336375.5A CN107856304B (en) | 2017-12-14 | 2017-12-14 | 3D printing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107856304A true CN107856304A (en) | 2018-03-30 |
| CN107856304B CN107856304B (en) | 2020-09-22 |
Family
ID=61706081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711336375.5A Active CN107856304B (en) | 2017-12-14 | 2017-12-14 | 3D printing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107856304B (en) |
Cited By (5)
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| CN109366979A (en) * | 2018-11-29 | 2019-02-22 | 广州黑格智造信息科技有限公司 | Charging tray leaning device and DLP technology 3D printing device |
| CN111421805A (en) * | 2020-02-29 | 2020-07-17 | 湖南大学 | Multi-shaft multi-material multi-light-source photocuring 3D rapid printing device and method capable of achieving synchronous printing |
| CN111531876A (en) * | 2020-02-29 | 2020-08-14 | 湖南大学 | Multi-axis photocuring 3D printing device and method capable of achieving mixed material use |
| CN113696471A (en) * | 2021-08-26 | 2021-11-26 | 杭州造梦者数字科技有限公司 | Photocuring 3D printer that printing speed is high |
| US11945157B2 (en) | 2018-12-21 | 2024-04-02 | General Electric Company | Multi-material additive manufacturing apparatus and method |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109366979A (en) * | 2018-11-29 | 2019-02-22 | 广州黑格智造信息科技有限公司 | Charging tray leaning device and DLP technology 3D printing device |
| US11945157B2 (en) | 2018-12-21 | 2024-04-02 | General Electric Company | Multi-material additive manufacturing apparatus and method |
| CN111421805A (en) * | 2020-02-29 | 2020-07-17 | 湖南大学 | Multi-shaft multi-material multi-light-source photocuring 3D rapid printing device and method capable of achieving synchronous printing |
| CN111531876A (en) * | 2020-02-29 | 2020-08-14 | 湖南大学 | Multi-axis photocuring 3D printing device and method capable of achieving mixed material use |
| CN111421805B (en) * | 2020-02-29 | 2022-02-01 | 湖南大学 | Multi-shaft multi-material multi-light-source photocuring 3D rapid printing device and method capable of achieving synchronous printing |
| CN111531876B (en) * | 2020-02-29 | 2022-02-18 | 湖南大学 | Multi-axis photocuring 3D printing device and method capable of achieving mixed material use |
| CN113696471A (en) * | 2021-08-26 | 2021-11-26 | 杭州造梦者数字科技有限公司 | Photocuring 3D printer that printing speed is high |
| CN113696471B (en) * | 2021-08-26 | 2023-05-16 | 杭州造梦者数字科技有限公司 | Photo-curing 3D printer with high printing speed |
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| CN107856304B (en) | 2020-09-22 |
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