CN107486984A - Barrel and the high storing parallel arm 3D printer of nozzle separate type - Google Patents
Barrel and the high storing parallel arm 3D printer of nozzle separate type Download PDFInfo
- Publication number
- CN107486984A CN107486984A CN201710736666.7A CN201710736666A CN107486984A CN 107486984 A CN107486984 A CN 107486984A CN 201710736666 A CN201710736666 A CN 201710736666A CN 107486984 A CN107486984 A CN 107486984A
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- China
- Prior art keywords
- connector
- barrel
- extruder head
- outer frame
- frame member
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
-
- 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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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
Abstract
The invention discloses a kind of barrel and the high storing parallel arm 3D printer of nozzle separate type.Belong to heavy viscous material 3D printer technical field, including outer frame member, three kinematic pair parts, driving part, extruder head part and storage feeding part；In uniform way at the triangle of outer frame member, storage feeding part is arranged at the top of outer frame member three kinematic pair parts, and driving part is arranged on outer frame member bottom, and extruder head part is connected with storage feeding part and kinematic pair part respectively.Instant invention overcomes the shortcomings of the motional inertia of barrel on the market and nozzle integral type printer is big, bad dynamic performance, positioning precision is higher, and printhead responds speed is fast, and print speed is very fast, no longer limited by 3D printing physical dimension, increase the volume of printable target object.
Description
Technical field
High viscosity fluid material progress 3D is can obtain after heating food, medicine, gypsum etc. the present invention relates to one kind to beat
The equipment of print, especially a kind of barrel and the high storing parallel arm 3D printer of nozzle separate type.
Background technology
With the fast development of digital technology, 3D printing technique is achieved, and is suffered from widely in every field
Using.Research for the technology of 3D printing focuses mostly in terms of metal and plastics, heating food materials, medicinal material etc. is obtained high viscous
The printing research of degree fluid is simultaneously few.At present heavy viscous material 3D printer on the market in order to feeding it is convenient, more by barrel with
Nozzle is designed as integral type, and in arm configuration in parallel, barrel is designed as integral type with nozzle can increase the load of printhead, cause
The motional inertia of printhead becomes big, while the positioning precision of printer can be made to be deteriorated, and response speed and the flexibility ratio of printhead become
It is low, and the size of barrel receives the limitation of printer arrangement size, reduces the size of energy printing objects volume.
The content of the invention
In order to overcome the shortcomings of existing heavy viscous material 3D printer, it is high with nozzle separate type that the present invention provides a kind of barrel
Storing parallel arm 3D printer, the load of printhead can be effectively reduced, improve printing precision and lifting printhead sensitivity
While increase printing objects volume size.
The technical solution adopted for the present invention to solve the technical problems is：
The present invention includes outer frame member, three kinematic pair parts, driving part, extruder head part and storage feeding portion
Part；For three kinematic pair parts in uniform way at the triangle of outer frame member, storage feeding part is arranged on outer frame member
Top, driving part are arranged on outer frame member bottom, and extruder head part connects with storage feeding part and kinematic pair part respectively
Connect.
It is perpendicular that the outer frame member includes three lower connecting blocks, lower connector, three upper contiguous blocks, upper connector and three
Straight connector；Lower connector is equilateral triangle structure, and three lower connecting blocks are separately mounted to three angles end outer wall of lower connector,
Upper connector is equilateral triangle structure, and three upper contiguous blocks are separately mounted to three angles end outer wall of upper connector, utilize screw
Nut fixes upper contiguous block with upper connector；Pass through three respectively between the triangle end of upper connector and the triangle end of lower connecting block
The vertical connector support of root is connected integrally, forms outer frame member.
One group of kinematic pair part is installed, the kinematic pair part includes two limited blocks, light on every vertical connector
Axle, mobile sliding block, linear bearing and arm band connection part, two limited blocks are separately fixed at vertical connector top and bottom, light
Axle is vertically connected between two limited blocks, and mobile sliding block is sleeved on outside optical axis through linear bearing and moved up and down along optical axis,
Arm band connection part is fixedly mounted on one side of the mobile sliding block close to outer frame member center.
Described driving part includes three motion control stepper motors and synchronizing wheel；Three motion control stepper motors point
It An Zhuan not descend in connector, the output shaft of each motion control stepper motor is fixedly and coaxially connected with a bottom synchronizing wheel, often
Upper connector directly over individual bottom synchronizing wheel is connected with top synchronizing wheel, bottom synchronizing wheel and top synchronizing wheel diameter parallel, bottom synchronizing wheel
Timing belt is installed between the synchronizing wheel of top, the arm band connection part of kinematic pair part is fixedly connected with timing belt.
The storage feeding part includes feeding stepper motor, stepper motor retainer, shaft coupling, leading screw, feed screw nut,
Drive link, barrel retainer, piston rod, barrel and barrel heating member；Feeding stepper motor is fixed through stepper motor retainer pacifies
On upper connector, feeding stepper motor output shaft is put on towards arranged just beneath, the lower end of feeding stepper motor output shaft
Connector is coaxially connected by shaft coupling with leading screw, and feed screw nut is set with through screw pair on leading screw；Barrel retainer is consolidated
The bottom surface of upper connector is scheduled on, barrel is fixed on barrel retainer bottom surface, and barrel heating member is fixed on barrel outer wall, feed screw nut
It is fixedly connected by drive link with piston rod part, piston rod bottom connection piston head, piston head is seated in barrel intracavitary, formed
The storage feeding part.
The extruder head part includes moving platform, extruder head connector, extruder head, extruder head heating member, connecting rod and insulation
Pipe；Moving platform top through connecting rod is connected to each arm band connection part, and each arm band connection part is connected by two parallel connecting rods
To moving platform top, extruder head connector is fixed on moving platform bottom center, and extruder head is arranged on the end of extruder head connector,
Bottom of the extruder head heating member fixed cover outside extruder head connector, extruder head connector charging aperture are gone out by insulating tube and barrel
Material mouth connection communicates, so as to form the extruder head part.
Run by the motion control stepper motor drive timing belt and then arm band connection part with mobile sliding block along optical axis
Move up and down, the mobile sliding block movement of three kinematic pair parts pulls moving platform fortune from three directions respectively each via connecting rod
It is dynamic, and then the level and lifting moving of extruder head on moving platform are realized, realize the 3D movements of print position.
Also include print platform and platform fixture, platform fixture is fixed on lower connector, and print platform is fixed on platform
On fixture.
The both ends of described connecting rod are hinged with arm band connection part and moving platform respectively.
The beneficial effects of the invention are as follows：
Instant invention overcomes big, bad dynamic performance of the motional inertia of barrel on the market and nozzle integral type printer etc. to lack
Point, and have the advantages that positioning precision is higher, printhead responds speed is fast, print speed is very fast, barrel is set with nozzle separate type
Meter improves the flexibility of nozzle movement, while the size of barrel is no longer limited by 3D printing physical dimension, and increasing to beat
Print the volume of target object.
Brief description of the drawings
The present invention is further described with example below in conjunction with the accompanying drawings.
Fig. 1 is 3D printer structure front view of the present invention；
Fig. 2 is 3D printer structure left view of the present invention；
Fig. 3 is 3D printer structure top view of the present invention；
Fig. 4 is the lower connecting block and lower connector and motion control stepper motor assembling schematic diagram of the present invention.
1. lower connecting block in figure, 2. times connectors, 3. motion control stepper motors, contiguous block on 4., 5. top synchronizing wheels,
6. upper connector, 7. vertical connectors, 8. limited blocks, 9. optical axises, 10. movement sliding blocks, 11. linear bearings, 12. arm band connections
Part, 13. moving platforms, 14. extruder head connectors, 15. extruder heads, 16. extruder head heating members, 17. feeding stepper motors, 18. steps
Stepper motor retainer, 19. shaft couplings, 20. leading screws, 21. feed screw nuts, 22. drive links, 23. barrel retainers, 24. piston rods,
25. barrel, 26. barrel heating members, 27. timing belts, 28. connecting rods, 29. insulating tubes, 30. print platforms, 31. platform fixtures, 32.
Bottom synchronizing wheel.
Embodiment
The present invention is illustrated below in conjunction with the accompanying drawings.
As shown in figure 1, present invention specific implementation includes outer frame member, three kinematic pair parts, driving part, extruder heads
Part and storage feeding part；Three kinematic pair parts at the triangle of outer frame member, store feeding part in uniform way
At the top of outer frame member, driving part is arranged on outer frame member bottom, and extruder head part is respectively with storing feeding portion
Part connects with kinematic pair part.
As depicted in figs. 1 and 2, outer frame member include the upper contiguous block 4 of three lower connecting blocks 1, lower connector 2, three, on
Connector 6 and three vertical connectors 7；Lower connector 2 is equilateral triangle structure, and three lower connecting blocks 1 are separately mounted to lower company
Three angles end outer wall of fitting 2, lower connecting block 1 and lower connector 2 are fixed using screw-nut；Upper connector 6 is positive triangle
Shape structure, three upper contiguous blocks 4 are separately mounted to three angles end outer wall of upper connector 6, using screw-nut by upper contiguous block 4
Fixed with upper connector 6；Pass through three vertical connections between the triangle end of upper connector 6 and the triangle end of lower connecting block 1 respectively
The support of part 7 is connected integrally, and the upper and lower ends of vertical connector 7 are connected respectively to the angle of lower connecting block 1 and upper contiguous block 4
End, form outer frame member；
As depicted in figs. 1 and 2, one group of kinematic pair part, the kinematic pair part bag are installed on every vertical connector 7
Two limited blocks 8, optical axis 9, mobile sliding block 10, linear bearing 11 and arm band connection part 12, two limited blocks 8 are included to be separately fixed at
The vertical top and bottom of connector 7, and it is respectively at the close beneath near the top of lower connecting block 1 with upper contiguous block 4, optical axis
9 are vertically connected between two limited blocks 8, and both ends are respectively fixedly connected with limited block 8, and mobile sliding block 10 is through 11 sets of linear bearing
Moved up and down outside optical axis 9 and along optical axis 9, arm band connection part 12 is fixedly mounted on mobile sliding block 10 in outer frame member
The one side of the heart.
As shown in figure 4, driving part includes three motion control stepper motors 3 and synchronizing wheel；Three motion control steppings
Motor 3 is separately mounted in lower connector 2, and the output shaft of each motion control stepper motor 3 is coaxial with a bottom synchronizing wheel 32
It is fixedly connected, the upper connector 6 directly over each bottom synchronizing wheel 32 is connected with top synchronizing wheel 5, as shown in figure 3, bottom synchronizing wheel 32
With the top diameter parallel of synchronizing wheel 5, timing belt 27 is installed between bottom synchronizing wheel 32 and top synchronizing wheel 5, the arm band of kinematic pair part connects
Fitting 12 is fixedly connected with respective timing belt 27.
As shown in Figures 2 and 3, storage feeding part includes feeding stepper motor 17, stepper motor retainer 18, shaft coupling
19th, leading screw 20, feed screw nut 21, drive link 22, barrel retainer 23, piston rod 24, barrel 25 and barrel heating member 26；Feeding
Stepper motor 17 is fixedly mounted on upper connector 6 through stepper motor retainer 18, and the output shaft of feeding stepper motor 17 is towards just
Arranged beneath, the lower end of the output shaft of feeding stepper motor 17 are put on connector 6 and are coaxially connected with leading screw 20 by shaft coupling 19, silk
On thick stick 20 feed screw nut 21 is set with through screw pair；Barrel retainer 23 is fixed on the bottom surface of upper connector 6, and barrel 25 is solid
The bottom surface of barrel retainer 23 is scheduled on, barrel heating member 26 is fixed on the outer wall of barrel 25, and feed screw nut 21 is by drive link 22 with living
The top of stopper rod 24 is fixedly connected, and the bottom of piston rod 24 connection piston head, piston head is seated in the intracavitary of barrel 25, forms the storage
Feeding part.
The other materials such as food materials or medicinal material heating and melting in barrel drives into high viscosity fluid, the rotation of feeding stepper motor
Feed screw nut is vertically movable, and feed screw nut drives piston rod vertically movable by drive link, and piston is by high viscosity fluid from barrel
Inside squeeze out, so as to reach the purpose of feeding.
As shown in Fig. 2 extruder head part includes moving platform 13, extruder head connector 14, extruder head 15, extruder head heating member
16th, connecting rod 28 and insulating tube 29；The top through connecting rod 28 of moving platform 13 is connected to each arm band connection part 12, each arm band connection part
12 are connected to the top of moving platform 13 by two parallel connecting rods 28, and extruder head connector 14 is fixed in the bottom surface of moving platform 13
The heart, extruder head 15 are arranged on the end of extruder head connector 14, and the fixed cover of extruder head heating member 16 is outside extruder head connector 14
Bottom, the charging aperture of extruder head connector 14 is connected with the discharging opening of barrel 25 by insulating tube 29 and communicated, so as to form described squeeze
Lift one's head part.
As shown in Fig. 2 also having print platform 30 and platform fixture 31 on lower connector 2, platform fixture 31 is fixed on down
On connector 2, print platform 30 is fixed on platform fixture 31.
The present invention the course of work be：
Run by motion control stepper motor 3 drive timing belt 27 and then arm band connection part 12 with mobile sliding block 10 along light
Axle 9 moves up and down, and the arm band connection part 12 of three kinematic pair parts is by moving up and down drivening rod 28 respectively from three directions
Pull moving platform 13 to move, and then realize the level and lifting moving of extruder head 15 on moving platform 13, realize the 3D of print position
It is mobile.
When arm band connection part 12 moves, by connecting rod 28 moving platform 13 will be controlled to move, the discharging opening of barrel 25 and extrusion
The head charging aperture of connector 14 is connected by insulating tube 29, and when extruder head 15 moves, slurry is constantly transported to crowded from barrel 25
Lift one's head at 15, feed action coordinates the motion of moving platform 13 to complete the printing action of this heavy viscous material 3D printer, and printing is flat
Platform 30 is fixed between three lower connecting blocks 1 and platform fixture 31, and platform fixture 31 is fixed on lower connector 2, passes through screw
Nut clamps print platform 30, and print procedure is carried out on print platform 30, and slurry is constantly accumulated on print platform, leads to
Crossing fast cooling makes forming objects, completes print job.
Claims (5)
1. a kind of barrel and the high storing parallel arm 3D printer of nozzle separate type, it is characterised in that：
Including outer frame member, three kinematic pair parts, driving part, extruder head part and storage feeding part；Three motions
Secondary part is in uniform way at the triangle of outer frame member, and storage feeding part is arranged at the top of outer frame member, drive division
Part is arranged on outer frame member bottom, and extruder head part is connected with storage feeding part and kinematic pair part respectively.
2. a kind of barrel according to claim 1 and the high storing parallel arm 3D printer of nozzle separate type, it is characterised in that：
The outer frame member includes three lower connecting blocks (1), lower connector (2), three upper contiguous blocks (4), upper connectors (6) and three
The vertical connector of root (7)；Lower connector (2) is equilateral triangle structure, and three lower connecting blocks (1) are separately mounted to lower connector
(2) three angles end outer wall, upper connector (6) are equilateral triangle structure, and three upper contiguous blocks (4) are separately mounted to upper connector
(6) three angles end outer wall, it is using screw-nut that upper contiguous block (4) and upper connector (6) is fixed；The three of upper connector (6)
It is connected integrally, is formed by three vertical connector (7) supports respectively between angle end and the triangle end of lower connecting block (1)
Outer frame member；
One group of kinematic pair part is installed on every vertical connector (7), the kinematic pair part include two limited blocks (8),
Optical axis (9), mobile sliding block (10), linear bearing (11) and arm band connection part (12), two limited blocks (8) are separately fixed at vertically
Connector (7) top and bottom, optical axis (9) are vertically connected between two limited blocks (8), and mobile sliding block (10) is through linear axis
Hold (11) to be sleeved on optical axis (9) outside and move up and down along optical axis (9), arm band connection part (12) is fixedly mounted on mobile sliding block (10)
One side close to outer frame member center；
Described driving part includes three motion control stepper motors (3) and synchronizing wheel；Three motion control stepper motors (3)
It is separately mounted in lower connector (2), the output shaft of each motion control stepper motor (3) is coaxial with a bottom synchronizing wheel (32)
Be fixedly connected, the upper connector (6) directly over each bottom synchronizing wheel (32) be connected with top synchronizing wheel (5), bottom synchronizing wheel (32) and
Synchronizing wheel (5) diameter parallel is pushed up, timing belt (27) is installed between bottom synchronizing wheel (32) and top synchronizing wheel (5), kinematic pair part
Arm band connection part (12) is fixedly connected with timing belt (27)；
The storage feeding part includes feeding stepper motor (17), stepper motor retainer (18), shaft coupling (19), leading screw
(20), feed screw nut (21), drive link (22), barrel retainer (23), piston rod (24), barrel (25) and barrel heating member
(26)；Feeding stepper motor (17) is fixedly mounted on upper connector (6) through stepper motor retainer (18), feeding stepper motor
(17) output shaft puts on connector (6) and passes through shaft coupling towards arranged just beneath, the lower end of feeding stepper motor (17) output shaft
(19) with leading screw (20) is coaxial is connected, be set with feed screw nut (21) through screw pair on leading screw (20)；Barrel retainer
(23) bottom surface of upper connector (6) is fixed on, barrel (25) is fixed on barrel retainer (23) bottom surface, and barrel heating member (26) is solid
Barrel (25) outer wall is scheduled on, feed screw nut (21) is fixedly connected by drive link (22) with piston rod (24) top, piston rod
(24) bottom connection piston head, piston head are seated in barrel (25) intracavitary, form the storage feeding part；
The extruder head part includes moving platform (13), extruder head connector (14), extruder head (15), extruder head heating member
(16), connecting rod (28) and insulating tube (29)；Moving platform (13) top through connecting rod (28) is connected to each arm band connection part (12), often
Individual arm band connection part (12) is connected to moving platform (13) top by two parallel connecting rods (28), and extruder head connector (14) is solid
Moving platform (13) bottom center is scheduled on, extruder head (15) is arranged on the end of extruder head connector (14), extruder head heating member
(16) bottom of the fixed cover in extruder head connector (14) outside, extruder head connector (14) charging aperture pass through insulating tube (29) and material
Cylinder (25) discharging opening connection communicates, so as to form the extruder head part.
3. a kind of barrel according to claim 2 and the high storing parallel arm 3D printer of nozzle separate type, it is characterised in that：
Run by the motion control stepper motor (3) and drive timing belt (27) and then arm band connection part (12) with mobile sliding block (10)
Moved up and down along optical axis (9), the mobile sliding block (10) of three kinematic pair parts is moved each via connecting rod (28) respectively from three
Direction pulls moving platform (13) motion, and then realizes the level and lifting moving of extruder head (15) on moving platform (13), and realization is beaten
Print the 3D movements of position.
4. a kind of barrel according to claim 1 and the high storing parallel arm 3D printer of nozzle separate type, it is characterised in that：
Also include print platform (30) and platform fixture (31), platform fixture (31) is fixed on lower connector (2), print platform (30)
It is fixed on platform fixture (31).
5. a kind of barrel according to claim 2 and the high storing parallel arm 3D printer of nozzle separate type, it is characterised in that：
The both ends of described connecting rod (28) are be hinged with arm band connection part (12) and moving platform (13) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710736666.7A CN107486984A (en) | 2017-08-24 | 2017-08-24 | Barrel and the high storing parallel arm 3D printer of nozzle separate type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710736666.7A CN107486984A (en) | 2017-08-24 | 2017-08-24 | Barrel and the high storing parallel arm 3D printer of nozzle separate type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107486984A true CN107486984A (en) | 2017-12-19 |
Family
ID=60645859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710736666.7A Pending CN107486984A (en) | 2017-08-24 | 2017-08-24 | Barrel and the high storing parallel arm 3D printer of nozzle separate type |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107486984A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108262967A (en) * | 2018-03-28 | 2018-07-10 | 吉林大学 | The trans- and movable 3D printer of connecting rod workbench |
| CN111053268A (en) * | 2019-12-10 | 2020-04-24 | 合肥中农科泓智营养健康有限公司 | Compact food 3D printer |
| CN111053269A (en) * | 2019-12-10 | 2020-04-24 | 合肥中农科泓智营养健康有限公司 | Continuous type food 3D printer |
| CN111053267A (en) * | 2019-12-10 | 2020-04-24 | 合肥中农科泓智营养健康有限公司 | Closed food 3D printer |
| CN113665117A (en) * | 2021-07-28 | 2021-11-19 | 四川轻化工大学 | Large-scale environment-friendly 3D printing equipment with automatic feeding function |
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| CN105150538A (en) * | 2015-09-22 | 2015-12-16 | 重庆塞拉雷利科技有限公司 | 3D printer for fluid materials |
| CN105881911A (en) * | 2016-06-08 | 2016-08-24 | 深圳市斯塔睿科技有限公司 | Separate linkage type feeding device for 3D printer and 3D printer |
| CN106493953A (en) * | 2016-12-15 | 2017-03-15 | 广州中国科学院先进技术研究所 | A kind of parallel arm 3D printer and control system |
| CN207240853U (en) * | 2017-08-24 | 2018-04-17 | 浙江大学 | A kind of barrel and the high storing parallel arm 3D printer of nozzle separate type |
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2017
- 2017-08-24 CN CN201710736666.7A patent/CN107486984A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105150538A (en) * | 2015-09-22 | 2015-12-16 | 重庆塞拉雷利科技有限公司 | 3D printer for fluid materials |
| CN105881911A (en) * | 2016-06-08 | 2016-08-24 | 深圳市斯塔睿科技有限公司 | Separate linkage type feeding device for 3D printer and 3D printer |
| CN106493953A (en) * | 2016-12-15 | 2017-03-15 | 广州中国科学院先进技术研究所 | A kind of parallel arm 3D printer and control system |
| CN207240853U (en) * | 2017-08-24 | 2018-04-17 | 浙江大学 | A kind of barrel and the high storing parallel arm 3D printer of nozzle separate type |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108262967A (en) * | 2018-03-28 | 2018-07-10 | 吉林大学 | The trans- and movable 3D printer of connecting rod workbench |
| CN108262967B (en) * | 2018-03-28 | 2023-09-12 | 吉林大学 | Movable 3D printer of trans-parallel connecting rod working platform |
| CN111053268A (en) * | 2019-12-10 | 2020-04-24 | 合肥中农科泓智营养健康有限公司 | Compact food 3D printer |
| CN111053269A (en) * | 2019-12-10 | 2020-04-24 | 合肥中农科泓智营养健康有限公司 | Continuous type food 3D printer |
| CN111053267A (en) * | 2019-12-10 | 2020-04-24 | 合肥中农科泓智营养健康有限公司 | Closed food 3D printer |
| CN113665117A (en) * | 2021-07-28 | 2021-11-19 | 四川轻化工大学 | Large-scale environment-friendly 3D printing equipment with automatic feeding function |
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Application publication date: 20171219 |
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