CN106313502B - A kind of double crossbeam subregion type 3D printers of industry - Google Patents
A kind of double crossbeam subregion type 3D printers of industry Download PDFInfo
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- CN106313502B CN106313502B CN201610924679.2A CN201610924679A CN106313502B CN 106313502 B CN106313502 B CN 106313502B CN 201610924679 A CN201610924679 A CN 201610924679A CN 106313502 B CN106313502 B CN 106313502B
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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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Abstract
The invention discloses a kind of double crossbeam subregions type 3D printers of industry, belong to Digital manufacturing technical field, and for current printer, that there are print spaces is limited, and shaping speed is slow, can not carry out more file printings and be unable to the defect that multizone prints simultaneously.There are the driving of motor ball-screw, line slide rail and sliding block positioning, realization to stablize quick printing, add the modules such as CNC, laser engraving nozzle on fuselage, enrich the function of expanding machine, accomplish a tractor serves several purposes.The exploitation of technical grade large format FDM 3D printers can greatly meet large scale industry product design molding in the market and the art work designs molding blank, quickly the molding of one equal proportion can greatly shorten the process that design is realized, the costs such as a large amount of time, money are saved, and machine cost itself is relatively low, integration degree is high, and market replicability and practicability are extremely strong.
Description
Technical field
The invention belongs to Digital manufacturing technical fields.
Background technology
3D printing technique be one kind based on digital model file, model is sliced by software, with powder
The adhesive materials such as shape metal or plastics, by successively printing, the mode of layer upon layer carrys out the technology of modeling.
The exploitation of the big specification FDM 3D printers of technical grade can greatly meet the molding of large scale industry product design in the market
Design molding blank with the art work, the double nozzles of double crossbeams quickly integrated equal proportion molding can greatly shorten that design realizes into
Journey has saved the costs such as a large amount of time, funds, and machine advantage of lower cost itself, integration degree are relatively high, city
Field replicability and practicability are extremely strong.But that there are print spaces is limited for current printer, shaping speed is slow, can not carry out more
File printing and the defect for being unable to multizone while printing.
Invention content
To solve the above-mentioned problems, the present invention proposes a kind of double crossbeam subregion type 3D printers of industry, mainly by frame
2, print platform 3, motion and nozzle mechanism composition；
Frame 2 is cube, and middle section is equipped with supporting beam, and 3 level of print platform is fixedly installed in the bottom surface of frame 2
On；2 bottom of print platform horizontal frame is stood on using several 1 support levels of footed glass on ground when to ensure work；
The motion concrete structure is as follows：
2 top X-direction both sides of frame are respectively fixed with the linear guide 9, and ball-screw 5 passes through ball-screw support base 4
It is fixed on the top of the linear guide 9；It is matched with ball-screw 5, two groups of double beam mechanisms is installed in the linear guide 9, two groups
There are certain distances, double beam mechanisms to be mounted on straight line by the weight supporting slide 11 that bottom is arranged between double beam mechanisms
On guide rail 9；Double beam mechanisms are consolidated flange nut 7 and double beam mechanisms by the flange nut seat being fixed on double beam mechanisms
Surely it links together；5 one end of ball-screw is provided with stepper motor 13, passes through shaft coupling between ball-screw 5 and stepper motor 13
Device 12 connects, and stepper motor 13 is fixedly mounted on the ball-screw support base 4 of homonymy；
Double beam mechanisms are mainly by two crossbeams being placed in parallel along Y direction, in the straight line of crossbeam upper and lower ends
Guide rail 9 and ball-screw 5 form；Ball-screw 5 is fixed on the top of the linear guide 9 by ball-screw support base 4, and straight line is led
Flange nut 7 on rail 9 is matched with ball-screw 5；Z axis motion, the linear guide of upside are installed in the linear guide 9
Nut seat sliding block 6 is installed, nut seat sliding block 6 passes through the flange nut seat and the flange nut that are fixed on nut seat sliding block 6 on 9
7 are fixed together, and weight supporting slide 11 is equipped in the linear guide 9 of downside；Z axis motion by angle bar 10 respectively with
Nut seat sliding block 6 and weight supporting slide 11 are fixed together；5 one end of ball-screw is provided with stepper motor 13, ball-screw 5
It is connected by shaft coupling 12 between stepper motor 13, stepper motor 13 is fixedly mounted on the ball-screw support base 4 of homonymy；
The Z axis motion is mainly by 5 structure of a column placed vertically 8, the linear guide 9 and ball-screw
At, the linear guide 9 be fixed on the left and right sides of column 8 vertically on, ball-screw 5 is solid by ball-screw support base 4
Due to the side of the linear guide 9, flange nut 7 is matched with ball-screw 5, is installed with the linear guide 9 of 5 homonymy of ball-screw
There are two nut seat sliding block 6, the sides of two nut seat sliding blocks 6 by the flange nut seat that is fixed on nut seat sliding block 6 with
Flange nut 7 is fixed together, and the other side of two nut seat sliding blocks 6 is fixed with the angle bar 10 on double beam mechanisms to be connected
It connects；There are two weight supporting slide 11, two weight supporting slides 11 and double beam mechanisms for the installation of the linear guide 9 with 5 heteropleural of ball-screw
On angle bar 10 be fixedly connected；5 one end of ball-screw is provided with stepper motor 13, leads between ball-screw 5 and stepper motor 13
The connection of shaft coupling 12 is crossed, stepper motor 13 is fixedly mounted on the ball-screw support base 4 of homonymy；Z axis motion lower end is logical
Nozzle link block 15 is crossed to connect with nozzle mechanism.
The nozzle mechanism includes extruder motor 14 and extrusion device 16, and extrusion device 16 is mounted on nozzle link block 15
On, extruder motor 14 is connected on extrusion device 16, and extruder motor 14 is that extrusion device 16 provides extrusion power.The extrusion dress
The 16 preferably controllable controllable heavy caliber nozzle extrusion devices for squeezing out diameter are set, can be sprayed using heavy caliber in print component
Head, nozzle are converted into small-bore nozzle when moving.
Preferably, two 13 homonymies of stepper motor in the same axial direction are placed, and are advised according to the wiring of stepper motor 13
Then and connection line, the synchronous operation of stepper motor 13 is thereby realized.
The ball-screw support base 4 is BF ball-screw support bases.
The present invention can add the modules such as numerically-controlled machine tool (CNC), laser engraving nozzle, enrich the function of expanding machine, accomplish
A tractor serves several purposes, specifically adding mode is：Replaceable easily detachable is carried out to extrusion device 16 with 15 joint of nozzle link block to set
Meter, other modules being adapted with machine, for example numerically-controlled machine tool (CNC), laser engraving nozzle etc., also use and extrusion device 16
Identical Interface design only need to remove former module, and replace other in specific replacement operation from nozzle link block 15
Required module.
Beneficial effects of the present invention：
1, movement in Z-direction in structure motion is led to the problem of and is trembled, it will be in Z-direction using double beam structures
Column erect, pass through its constraint and two wood side-guides constraint ensure mechanism operation stability.
2, since the weight of constructional device is excessive, in motion process, frequency is too fast generates the dry of the factors such as toothed belt rebound
It disturbs, structure is driven using ball-screw, and equidirectional spindle motor is connected, and ensures that the movement of leading screw synchronizes.
3, the present invention is using the controllable controllable heavy caliber nozzle extrusion device for squeezing out diameter.It can be adopted in print component
It is sprayed with heavy caliber, nozzle is converted into small-bore nozzle when moving.Prevent from generating the leakage of cart-load of woods material during the motion.
4, the double crossbeam industry 3D printers of the large size, which is characterized in that described two groups double beam structures are not only each
From region whole region can be individually printed from working independently again simultaneously.Not only can complete the more colors of more materials and meanwhile printing but can
To complete single bill of materials color printing speed.
5, the double crossbeam industry 3D printers of the large size, which is characterized in that when the hollow, cantilever of printing and honeycomb
When, since printed material is different from filling material density, it is double horizontal that one group of double one group of crossbeam print component main part may be implemented
Beam prints fill part.Printing precision can be increased, print speed can be improved again.
6, the modules such as numerically-controlled machine tool (CNC), laser engraving nozzle can be added, the function of expanding machine is enriched, accomplishes a machine
It is multi-purpose.
Description of the drawings
Fig. 1 is the front view of the double crossbeam subregion type 3D printers of present invention industry；
Fig. 2 is the partial enlarged view that double beam mechanisms are connect with Z axis motion in the present invention；
Fig. 3 is the partial enlarged view of nozzle position of the present invention；
Fig. 4 is the vertical view of the double crossbeam subregion type 3D printers of present invention industry；
Fig. 5 is the axonometric drawing of the double crossbeam subregion type 3D printers of present invention industry.
Specific implementation mode
Embodiment 1
A kind of double crossbeam subregion type 3D printers of industry, mainly by frame 2, print platform 3, motion and nozzle machine
Structure forms；
Frame 2 is cube, and middle section is equipped with supporting beam, and 3 level of print platform is fixedly installed in the bottom surface of frame 2
On；2 bottom of print platform horizontal frame is stood on using several 1 support levels of footed glass on ground when to ensure work；
The motion concrete structure is as follows：
2 top X-direction both sides of frame are respectively fixed with the linear guide 9, and ball-screw 5 passes through ball-screw support base 4
It is fixed on the top of the linear guide 9；It is matched with ball-screw 5, two groups of double beam mechanisms is installed in the linear guide 9, two groups
There are certain distances, double beam mechanisms to be mounted on straight line by the weight supporting slide 11 that bottom is arranged between double beam mechanisms
On guide rail 9；Double beam mechanisms are consolidated flange nut 7 and double beam mechanisms by the flange nut seat being fixed on double beam mechanisms
Surely it links together；5 one end of ball-screw is provided with stepper motor 13, passes through shaft coupling between ball-screw 5 and stepper motor 13
Device 12 connects, and stepper motor 13 is fixedly mounted on the ball-screw support base 4 of homonymy；
Double beam mechanisms are mainly by two crossbeams being placed in parallel along Y direction, in the straight line of crossbeam upper and lower ends
Guide rail 9 and ball-screw 5 form；Ball-screw 5 is fixed on the top of the linear guide 9 by ball-screw support base 4, and straight line is led
Flange nut 7 on rail 9 is matched with ball-screw 5；Z axis motion, the linear guide of upside are installed in the linear guide 9
Nut seat sliding block 6 is installed, nut seat sliding block 6 passes through the flange nut seat and the flange nut that are fixed on nut seat sliding block 6 on 9
7 are fixed together, and weight supporting slide 11 is equipped in the linear guide 9 of downside；Z axis motion by angle bar 10 respectively with
Nut seat sliding block 6 and weight supporting slide 11 are fixed together；5 one end of ball-screw is provided with stepper motor 13, ball-screw 5
It is connected by shaft coupling 12 between stepper motor 13, stepper motor 13 is fixedly mounted on the ball-screw support base 4 of homonymy；
The Z axis motion is mainly by 5 structure of a column placed vertically 8, the linear guide 9 and ball-screw
At, the linear guide 9 be fixed on the left and right sides of column 8 vertically on, ball-screw 5 is solid by ball-screw support base 4
Due to the side of the linear guide 9, flange nut 7 is matched with ball-screw 5, is installed with the linear guide 9 of 5 homonymy of ball-screw
There are two nut seat sliding block 6, the sides of two nut seat sliding blocks 6 by the flange nut seat that is fixed on nut seat sliding block 6 with
Flange nut 7 is fixed together, and the other side of two nut seat sliding blocks 6 is fixed with the angle bar 10 on double beam mechanisms to be connected
It connects；There are two weight supporting slide 11, two weight supporting slides 11 and double beam mechanisms for the installation of the linear guide 9 with 5 heteropleural of ball-screw
On angle bar 10 be fixedly connected；5 one end of ball-screw is provided with stepper motor 13, leads between ball-screw 5 and stepper motor 13
The connection of shaft coupling 12 is crossed, stepper motor 13 is fixedly mounted on the ball-screw support base 4 of homonymy；Z axis motion lower end is logical
Nozzle link block 15 is crossed to connect with nozzle mechanism.
The nozzle mechanism includes extruder motor 14 and extrusion device 16, and extrusion device 16 is mounted on nozzle link block 15
On, extruder motor 14 is connected on extrusion device 16, and extruder motor 14 is that extrusion device 16 provides extrusion power.The extrusion dress
The 16 preferably controllable controllable heavy caliber nozzle extrusion devices for squeezing out diameter are set, can be sprayed using heavy caliber in print component
Head, nozzle are converted into small-bore nozzle when moving.
Two 13 homonymies of stepper motor in the same axial direction are placed, and according to the wiring rules of stepper motor 13 and connection
Line thereby realizes the synchronous operation of stepper motor 13.Ball-screw support base 4 in the present embodiment uses BF ball-screws
Support base.
Two groups of double beam mechanisms do the principle that X-direction moves on the frame 2 is:Stepper motor 13 on frame 2 passes through
Shaft coupling 12 drives ball-screw 5 to realize that its controlling rotary, the flange nut 7 being matched therewith are connected in double crossbeam both ends.
Thereby realize the transformation of double rotary motions and linear motion between crossbeam and stepper motor 13.Since structural volume is larger,
It is matched with the linear guide 9 by the weight supporting slide 11 that is fixed on double crossbeams in motion process and to realize pair crossbeams during exercise
Straight line positions.
Z axis motion does the principle that Y-direction moves on double beam mechanisms:Two be fixed on double beam mechanisms
Stepper motor 13 drives two ball-screws 5 to realize its controlling rotary by shaft coupling 12 respectively, is matched with ball-screw 5
Flange nut 7 it is solid by weight supporting slide 11 phase of the cooperation in the linear guide 9 on flange nut seat and double beam mechanisms respectively
Even.Finally, movement, sliding block-guide rail positioning so that Z axis motion is done along the Y direction can be transmitted by leading screw-pair of nut
The linear motion accurately controlled.
Z axis motion does the principle that Z-direction moves:Pass through in the right side stepper motor 13 of Z axis motion column 8
Shaft coupling 12 drives ball-screw 5 to realize its rotation, passes through flange nut with 5 matched two flange nuts 7 of ball-screw
Seat is fixed on nut seat sliding block 6, and nut seat sliding block 6 slides in the linear guide 9, and is coordinated on double crossbeams by angle bar 10
Weight supporting slide 11 in the linear guide 9 is fixedly connected with, and has the cooperation of weight supporting slide 11 straight in the left side of Z axis motion column 8
It is fixedly connected on line guide rail 9 and by angle bar 10 and weight supporting slide 11 of the cooperation in the linear guide 9 on double crossbeams.Finally, pass through
Leading screw-pair of nut transmits movement, is positioned by sliding block-guide rail so that Z axis motion accurately controls along the Z direction
Linear motion.
Double beam mechanisms do Y-direction movement on the frame 2 and Z axis motion does X-direction movement on double beam mechanisms
All it is to respectively drive two by two stepper motors 13 and be placed in parallel ball-screw 5 to realize, synchronous operation principle is:By one
Two have the stepper motor 13 that identical power exports to realize parallel connection according to the wiring rules of stepper motor on a direction, then will be in parallel
The signal output end of control line access motor driver afterwards, thereby realizes the synchronous operation of stepper motor 13, Jin Ershi
The synchronous operation of two ball-screws 5 and the even running of institute's drive part are showed.
Double crossbeam subregions 3D printer is divided into single material monochrome printing and more material multi-color printings in the process of running,
In but the printing of material monochrome be divided into and separately printed for subregion printing speed and printed material backing material.Printing, more materials are more
When color print, the nozzle structure in two groups of double beam structures fills the printed material of different materials or different colours respectively.When
When mechanism prints a kind of material, another group of double crossbeams are in 2 upper right corner origin position of frame and are in heated condition to be printed, when
When needing to print another material, main printing head returns to another printing origin of the lower left corner, and nozzle to be printed begins to carry out
Another printing of material.
When double crossbeam subregions 3D printer carries out subregion printing speed, printer model is divided into the areas Liang Ge by Slice Software
Domain, two groups of double beam structures are printed in respective region respectively, and left side spray head is responsible for printing the splicing part in two regions.This
Sample can splice the process pasted to avoid the later stage.
When double crossbeam subregions 3D printer carries out high-precision printing, the nozzle of two groups of double beam structures distinguishes type body
Material and packing material.When type body material, prints double beam structures of packing material and be in printing origin position and waited for
Print heated condition.When needing to print packing material, main body printing head is quickly returning to printing origin.By filling nozzle printing
Packing material.
In addition to the present embodiment, the modules such as numerically-controlled machine tool (CNC), laser engraving nozzle can be added on frame 2 of the present invention, enriched
The function of expanding machine, accomplishes a tractor serves several purposes.Specifically additional mode is：To extrusion device 16 and 15 joint of nozzle link block into
The replaceable easily detachable of row designs, other modules being adapted with machine, for example numerically-controlled machine tool (CNC), laser engraving nozzle etc.,
Also Interface design identical with extrusion device 16 is used, it, only need to be by former module from nozzle link block in specific replacement operation
It is removed on 15, and replaces other required modules.
Claims (5)
1. a kind of double crossbeam subregion type 3D printers of industry, mainly by frame（2）, print platform（3）, motion and nozzle
Mechanism forms；
Frame（2）For cube, middle section is equipped with supporting beam, print platform（3）Level is fixedly installed in frame（2）Bottom surface
On；Frame（2）Bottom uses several footed glasses（1）Support level is stood on ground；
It is characterized in that, the motion concrete structure is as follows：
Frame（2）Top X-direction both sides are respectively fixed with the linear guide（9）, ball-screw（5）Pass through ball-screw support base
（4）It is fixed on the linear guide（9）Top；With ball-screw（5）It matches, the linear guide（9）On two groups of double crossbeams are installed
Mechanism, there are the weight supporting slides that certain distance, double beam mechanisms are arranged by bottom between two groups of double beam mechanisms
（11）Mounted on the linear guide（9）On；Double beam mechanisms are by being fixed on the flange nut seat on double beam mechanisms by flange spiral shell
It is female（7）It is fixed together with double beam mechanisms；Ball-screw（5）One end is provided with stepper motor（13）, ball-screw（5）
And stepper motor（13）Between pass through shaft coupling（12）Connection, stepper motor（13）It is fixedly mounted on the ball-screw support of homonymy
Seat（4）On；
Double beam mechanisms are mainly by two crossbeams being placed in parallel along Y direction, in the linear guide of crossbeam upper and lower ends
（9）And ball-screw（5）Composition；Ball-screw（5）Pass through ball-screw support base（4）It is fixed on the linear guide（9）Top,
The linear guide（9）On flange nut（7）With ball-screw（5）It matches；The linear guide（9）On Z axis motion is installed,
The linear guide（9）Upside on nut seat sliding block is installed（6）, nut seat sliding block（6）By being fixed on nut seat sliding block（6）On
Flange nut seat and flange nut（7）It is fixed together, the linear guide（9）Downside on weight supporting slide is installed
（11）；Z axis motion passes through angle bar（10）Respectively with nut seat sliding block（6）And weight supporting slide（11）It is fixed together；
Ball-screw（5）One end is provided with stepper motor（13）, ball-screw（5）And stepper motor（13）Between pass through shaft coupling（12）
Connection, stepper motor（13）It is fixedly mounted on the ball-screw support base of homonymy（4）On；
The column that the Z axis motion is mainly placed by one vertically（8）, the linear guide（9）And ball-screw（5）Structure
At the linear guide（9）It is fixed on column（8）The left and right sides vertically on, ball-screw（5）It is supported by ball-screw
Seat（4）It is fixed on the linear guide（9）Side, flange nut（7）With ball-screw（5）It matches, with ball-screw（5）Homonymy
The linear guide（9）There are two nut seat sliding blocks for installation（6）, two nut seat sliding blocks（6）Side by being fixed on nut seat
Sliding block（6）On flange nut seat and flange nut（7）It is fixed together, two nut seat sliding blocks（6）The other side with
Angle bar on double beam mechanisms（10）It is fixedly connected；With ball-screw（5）The linear guide of heteropleural（9）There are two load-bearing to slide for installation
Block（11）, two weight supporting slides（11）With the angle bar on double beam mechanisms（10）It is fixedly connected；Ball-screw（5）One end is provided with
Stepper motor（13）, ball-screw（5）And stepper motor（13）Between pass through shaft coupling（12）Connection, stepper motor（13）It is fixed
Mounted on the ball-screw support base of homonymy（4）On；Z axis motion lower end passes through nozzle link block（15）Connect with nozzle mechanism
It connects.
2. the double crossbeam subregion type 3D printers of industry according to claim 1, which is characterized in that the nozzle mechanism packet
Include extruder motor（14）And extrusion device（16）, extrusion device（16）Mounted on nozzle link block（15）On, extruder motor（14）
It is connected to extrusion device（16）On, extruder motor（14）For extrusion device（16）It provides and squeezes out power.
3. the double crossbeam subregion type 3D printers of industry according to claim 2, which is characterized in that the extrusion device
（16）For the controllable controllable heavy caliber nozzle extrusion device for squeezing out diameter.
4. the double crossbeam subregion type 3D printers of industry according to claim 1, which is characterized in that in the same axial direction
Two stepper motors（13）Homonymy is placed, and according to stepper motor（13）Wiring rules and connection line, thereby realize step
Stepper motor（13）Synchronous operation.
5. the double crossbeam subregion type 3D printers of industry according to claim 1, which is characterized in that the ball-screw
Support base（4）For BF ball-screw support bases.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610924679.2A CN106313502B (en) | 2016-10-22 | 2016-10-22 | A kind of double crossbeam subregion type 3D printers of industry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610924679.2A CN106313502B (en) | 2016-10-22 | 2016-10-22 | A kind of double crossbeam subregion type 3D printers of industry |
Publications (2)
| Publication Number | Publication Date |
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| CN106313502A CN106313502A (en) | 2017-01-11 |
| CN106313502B true CN106313502B (en) | 2018-11-09 |
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| CN201610924679.2A Expired - Fee Related CN106313502B (en) | 2016-10-22 | 2016-10-22 | A kind of double crossbeam subregion type 3D printers of industry |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106827533A (en) * | 2017-03-13 | 2017-06-13 | 武汉市市政建设集团有限公司 | A kind of 3D printing equipment for building sand table making |
| CN106956434A (en) * | 2017-04-10 | 2017-07-18 | 北京碧如蓝工贸公司 | The multi-functional 3D printer that synchronously can symmetrically print |
| CN107175816B (en) * | 2017-06-09 | 2019-03-05 | 洛阳理工学院 | A kind of bull sub-control 3D printer |
| CN107187061B (en) * | 2017-06-09 | 2019-03-05 | 洛阳理工学院 | A kind of 3D printer control method |
| CN107175811A (en) * | 2017-07-17 | 2017-09-19 | 杭州德迪智能科技有限公司 | A kind of printing device of the variable printing head angle of streamline gantry structure based on FDM |
| CN108973123B (en) * | 2018-10-12 | 2023-09-15 | 吉林大学 | Frame-type five-degree-of-freedom 3D printer |
| CN114147961A (en) * | 2021-12-06 | 2022-03-08 | 吉林大学重庆研究院 | Horizontal delta printing device capable of printing in regions |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005000592A1 (en) * | 2003-06-26 | 2005-01-06 | Weather Cock Co.,Ltd. | Three-dimensional printer, three-dimensional printing method, and three-dimensionally printed article |
| CN202939899U (en) * | 2012-10-30 | 2013-05-15 | 苏州工业园区职业技术学院 | Five-axis numerical control processing teaching demonstration machine |
| KR20160112496A (en) * | 2015-03-19 | 2016-09-28 | 엘지전자 주식회사 | Printing apparatus for building three-dimensional object |
| CN105128344A (en) * | 2015-10-23 | 2015-12-09 | 南京倍立达新材料系统工程股份有限公司 | Large 3D printing and five-axis linking all-in-one machine |
| CN105729135A (en) * | 2016-04-13 | 2016-07-06 | 意特利（上海）科技有限公司 | Machining center |
| CN105815362B (en) * | 2016-05-09 | 2019-01-11 | 上海交通大学 | food 3D printer |
| CN206106369U (en) * | 2016-10-22 | 2017-04-19 | 吉林大学 | Two crossbeams of industry divide domain type 3D printer |
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Granted publication date: 20181109 Termination date: 20191022 |