CN106827538B - A kind of 3D printer that accuracy is high - Google Patents
A kind of 3D printer that accuracy is high Download PDFInfo
- Publication number
- CN106827538B CN106827538B CN201710003955.6A CN201710003955A CN106827538B CN 106827538 B CN106827538 B CN 106827538B CN 201710003955 A CN201710003955 A CN 201710003955A CN 106827538 B CN106827538 B CN 106827538B
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- Prior art keywords
- block
- gear
- contact
- knucle
- accuracy
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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 a kind of 3D printers that accuracy is high, including shell, pillar, sliding block, runner assembly, connecting rod, PLC and balanced component, first motor and the first Knucle-gear are additionally provided in the sliding block, the runner assembly includes the second Knucle-gear, bearing, strut, second motor and third Knucle-gear, the balanced component includes third motor, fixed block, screw rod, adjusting block, spray head and balancing unit, the balancing unit includes drawstring, sphere, limited block, spring, contact block and contact, the high 3D printer of the accuracy is ingenious in design, feasibility is high, the height of spray head is adjustable by the sliding of sliding block, the print range and accuracy height of spray head can be improved by runner assembly, spray head can be made to remain vertical state by balanced component, ensure that printing precision, improve print quality.
Description
Technical field
The present invention relates to printer field, in particular to a kind of 3D printer that accuracy is high.
Background technique
A kind of machine of 3D printer, that is, rapid prototyping technology, it is based on a digital model file, with powder
The adhesive materials such as shape metal or plastics construct the technology of object by layer-by-layer printing.It is beaten with three-dimensional printer
Stamp type under control of the computer can be straight according to the threedimensional model of workpiece without traditional cutting machine tool and tool and mould
It is connected into shape 3D solid, spray head is to require for exporting the component of consumptive material spray head can be in 3D printer in print procedure
It is arbitrarily moved in space to cope with the workpiece of different outer wheels profile surfaces.The nozzle gearing mechanism of existing 3D printer is mostly
The transmission mechanism for having used traditional three-shaft linkage lathe, i.e., be all provided with along the axis in tri- directions X, Y, Z, each axial direction respectively
It is equipped with a driving unit, when printing is arbitrarily moving with the transmission mechanism in three axial directions.The driver of this three-shaft linkage
Structure structure is complex, and the space occupied is larger, and in print procedure, when due to moving between the different positions, needs
The drive spray head of three driving units sequentially is mobile, therefore the efficiency printed is lower.
Application No. is 201310246765.9 patent application, provides and a kind of " three or more and be distributed in platform periphery
Transmission component, each transmission component include along short transverse extend guide rod, be slidably mounted on guide rod
Sliding seat, driving motor and connecting rod for driving sliding seat up and down along guide rod, the both ends of connecting rod are respectively with ten thousand
Connect mounting base and sliding seat to hinged mode " the kind of drive, its shortcoming is that: its sliding seat used is using traditional
The mode of belt transmission, it cannot be guaranteed that accurate transmission ratio, can glance off when moving in spray head, be not easy very much to manipulate.
Summary of the invention
The technical problem to be solved by the present invention is for overcome the deficiencies in the prior art, providing a kind of 3D that accuracy is high
Printer.
It is of the present invention solve the problems, such as used by technical solution be: a kind of 3D printer that accuracy is high, including shell, branch
Column, sliding block, runner assembly, connecting rod, PLC and balanced component；
The section of the shell is triangle, and there are three the pillars, and the section of three pillars is displaced housing section respectively
Three angles on, the pillar is vertically arranged, and there are three the sliding blocks, and three sliding blocks are respectively sleeved on three pillars, described
There are three runner assemblies, and three runner assemblies are respectively fixedly disposed on three sliding blocks, and the connecting rod has three, the connecting rod
One end is hinged with runner assembly, and the other end and balanced component of the connecting rod are hinged；
First motor and the first Knucle-gear are additionally provided in the sliding block, the side of the pillar is equipped with a gear, the item
Gear is vertically arranged, and the first motor drives the rotation of the first Knucle-gear, and first Knucle-gear is engaged with a gear, the branch
Column and a gear both pass through sliding block；
The runner assembly include the second Knucle-gear, bearing, strut, the second motor and third Knucle-gear, the bearing with
The coaxial arrangement of second Knucle-gear, the inner ring of the bearing are fixedly connected with a slide block, and the outer ring of the bearing and the second Knucle-gear are solid
Fixed connection, one end of the strut are fixedly connected on the second Knucle-gear, and the other end and connecting rod of the strut are hinged, institute
The rotation of the second motor driven third Knucle-gear is stated, the third Knucle-gear is engaged with the second Knucle-gear；
The balanced component includes third motor, fixed block, screw rod, adjusting block, spray head and balancing unit, the third electricity
There are four machines, and four third motors are arranged at the lower section of fixed block, and four third motors are arranged in arrays, and the screw rod has four
Root, one end of the screw rod are connected on the output shaft of four third motors, and the other end of the screw rod penetrates adjusting
Block, the adjusting block, which is equipped with, is located at the lower section of fixed block, the balancing unit with the matched internal screw thread of screw rod, the adjusting block
In adjusting block, the spray head is located at the underface of adjusting block；
The balancing unit includes drawstring, sphere, limited block, spring, contact block and contact, and one end of the drawstring, which connects, adjusts
In locking nub, the other end of the drawstring is connect with sphere, and the drawstring is vertically arranged, and there are four the springs, the spring
One end is connected on limited block, and there are four the contacts, and the other end of the spring is connected on contact, and the spring is perpendicular
Straight setting, four contacts are circumferentially evenly distributed on the periphery of sphere, and gap is equipped between the contact and sphere, and the contact block has
Four, four contact blocks are circumferentially evenly distributed on the periphery of contact, and the contact block is located at the side of contact, the contact block and contact it
Between be equipped with gap, the contact block is electrically connected with PLC.
Preferably, shaking in order to prevent, sensitivity is adjusted, is additionally provided with pushing block and bolt on the limited block, it is described to push away
Block is horizontally disposed, and the pushing block is slidably connected with limited block, and the pushing block is equipped with bolt, and the bolt passes through pushing block and limit
Block against.
Sphere swings back and forth, and is easy to make the contact on both sides to be expressed on contact block, and having limited block just makes small-scale rolling
Dynamic cannot be that sphere touches contact, and third motor will not be made to open, and it is adjustable to adjust the distance between pushing block and stretching
The precision of shaking.
Preferably, being additionally provided with elastic slice on the contact to improve conductive effect, the contact passes through elastic slice and contact block
Against.
Preferably, the sphere is ball in order to insulate.
Preferably, in order to improve running accuracy, the diameter of the diameter of the third Knucle-gear less than the second Knucle-gear.
Preferably, it is additionally provided with gag lever post between the fixed block and adjusting block in order to fix fixed block and adjusting block,
The both ends of the gag lever post are hinged respectively at fixed block and adjusting block.
Preferably, in order to increase the firmness of drawstring, the making material of the drawstring is steel wire.
Preferably, controlling for convenience, the first motor, the second motor, third motor are servo motor.
Preferably, drawstring is worn in order to prevent, the pushing block is equipped with rubber block close to one end of drawstring.
Preferably, in order to improve the firmness of connecting rod, the making material of the connecting rod is stainless steel.
The invention has the advantages that the accuracy it is high 3D printer it is ingenious in design, feasibility is high, passes through the cunning of sliding block
Kinetic energy adjusts the height of spray head, and the print range and accuracy height of spray head can be improved by runner assembly, pass through balanced component
Spray head can be made to remain vertical state, ensure that printing precision, improve print quality.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is a kind of structural schematic diagram of the high 3D printer of accuracy of the invention.
Fig. 2 is a kind of sliding block of the high 3D printer of accuracy of the invention and the attachment structure schematic diagram of pillar.
Fig. 3 is a kind of structural schematic diagram of the runner assembly of the high 3D printer of accuracy of the invention.
Fig. 4 is a kind of structural schematic diagram of the balanced component of the high 3D printer of accuracy of the invention.
Fig. 5 is a kind of structural schematic diagram of the balancing unit of the high 3D printer of accuracy of the invention.
Fig. 6 is a kind of structural schematic diagram of the limited block of the high 3D printer of accuracy of the invention.
In figure: 1. shells, 2. sliding blocks, 3. runner assemblies, 4. connecting rods, 5. balanced components, 6. pillars, 7. gears, 8.
One Knucle-gear, 9. first motors, 10. second Knucle-gears, 11. bearings, 12. struts, 13. second motors, 14. third Knucle-gears,
15. fixed block, 16. third motors, 17. screw rods, 18. balancing units, 19. adjusting blocks, 20. spray heads, 21. steel wires, 22. spheres,
23. limited block, 24. springs, 25. contact blocks, 26. contacts, 27. bolts, 28. pushing blocks.
Specific embodiment
In conjunction with the accompanying drawings, the present invention is further explained in detail.These attached drawings are simplified schematic diagram, only with
Illustration illustrates basic structure of the invention, therefore it only shows the composition relevant to the invention.
As shown in figures 1 to 6, a kind of 3D printer that accuracy is high, including shell 1, pillar 6, sliding block 2, runner assembly 3, company
Bar 4, PLC and balanced component 5；
The section of the shell 1 is triangle, and there are three the pillars 6, and the section of three pillars 6 is displaced shell 1 respectively
On three angles in section, the pillar 6 is vertically arranged, and there are three the sliding blocks 2, and three sliding blocks 2 are respectively sleeved at three pillars 6
On, there are three the runner assemblies 3, and three runner assemblies 3 are respectively fixedly disposed on three sliding blocks 2, and the connecting rod 4 has three
Root, one end of the connecting rod 4 and runner assembly 3 are hinged, and the other end and balanced component 5 of the connecting rod 4 are hinged；
First motor 9 and the first Knucle-gear 8 are additionally provided in the sliding block 2, the side of the pillar 6 is equipped with a gear 7, institute
It states a gear 7 to be vertically arranged, the first motor 9 drives the rotation of the first Knucle-gear 8, and first Knucle-gear 8 is nibbled with gear 7
It closes, the pillar 6 and gear 7 both pass through sliding block 2；
The runner assembly 3 includes the second Knucle-gear 10, bearing 11, strut 12, the second motor 13 and third Knucle-gear 14,
The bearing 11 and the second Knucle-gear 10 are coaxially disposed, and the inner ring of the bearing 11 is fixedly connected with sliding block 2, the bearing 11
Outer ring is fixedly connected with the second Knucle-gear 10, and one end of the strut 12 is fixedly connected on the second Knucle-gear 10, described
The other end and connecting rod 4 of strut 12 are hinged, and second motor 13 drives third Knucle-gear 14 to rotate, the third Knucle-gear 14
It is engaged with the second Knucle-gear 10；
The balanced component 5 includes third motor 16, fixed block 15, screw rod 17, adjusting block 19, spray head 20 and balancing unit
18, there are four the third motors 16, and four third motors 16 are arranged at the lower section of fixed block 15, and four third motors 16 are in
Matrix arrangement, the screw rod 17 have four, and one end of the screw rod 17 is connected on the output shaft of four third motors 16,
The other end of the screw rod 17 penetrates adjusting block 19, the adjusting block 19 be equipped with the matched internal screw thread of screw rod 17, it is described
Adjusting block 19 is located at the lower section of fixed block 15, and the balancing unit 18 is located in adjusting block 19, and the spray head 20 is located at adjusting block
19 underface；
The balancing unit 18 includes drawstring, sphere 22, limited block 23, spring 24, contact block 25 and contact 26, the drawstring
One end connection adjusting block 19 on, the other end of the drawstring is connect with sphere 22, and the drawstring is vertically arranged, the spring 24
There are four, one end of the spring 24 is connected on limited block 23, and there are four the contacts 26, the other end point of the spring 24
It is not connected on contact 26, the spring 24 is vertically arranged, the circumferential periphery for being evenly distributed on sphere 22 of four contacts 26, described
Gap is equipped between contact 26 and sphere 22, there are four the contact blocks 25, and four contact blocks 25 are circumferential to be evenly distributed on contact 26
Periphery, the contact block 25 are located at the side of contact 26, are equipped with gap between the contact block 25 and contact 26, the contact block 25 with
PLC electrical connection.
Preferably, shaking in order to prevent, sensitivity is adjusted, is additionally provided with pushing block 28 and bolt 27 on the limited block 23,
The pushing block 28 is horizontally disposed, and the pushing block 28 is slidably connected with limited block 23, and the pushing block 28 is equipped with bolt 27, the spiral shell
Bolt 27 pass through pushing block 28 and limited block 23 against.
Sphere 22 swings back and forth, and is easy to make the contact 26 on both sides to be expressed on contact block 25, has limited block 23 just and makes and is small
The shaking of range cannot be that sphere 22 touches contact 26, and third motor 16 will not be made to open, and adjust pushing block 28 and stretching
Between the adjustable shaking of distance precision.
Preferably, in order to improve conductive effect, be additionally provided with elastic slice on the contact 26, the contact 26 by elastic slice with
Contact block 25 against.
Preferably, the sphere 22 is ball in order to insulate.
Preferably, in order to improve running accuracy, the diameter of the third Knucle-gear 14 is straight less than the second Knucle-gear 10
Diameter.
Preferably, also being set between the fixed block 15 and adjusting block 19 to fix fixed block 15 and adjusting block 19
There is gag lever post, the both ends of the gag lever post are hinged respectively at fixed block 15 and adjusting block 19.
Preferably, in order to increase the firmness of drawstring, the making material of the drawstring is steel wire 21.
Preferably, controlling for convenience, the first motor 9, the second motor 13, third motor 16 are servo electricity
Machine.
Preferably, drawstring is worn in order to prevent, the pushing block 28 is equipped with rubber block close to one end of drawstring.
Preferably, in order to improve the firmness of connecting rod 4, the making material of the connecting rod 4 is stainless steel.
At work, the high 3D printer of the accuracy is connected to external power supply, and contact 26 is electrically connected to a power source, by existing
There is the conveying component of technology to convey printing raw material to spray head 20 to be printed, " three or more and is distributed in platform in the prior art
The transmission component of periphery, each transmission component include the guide rod extended along short transverse, are slidably mounted at guide rod
On sliding seat, for driving sliding seat along the up and down driving motor of guide rod and connecting rod 4, the both ends point of connecting rod 4
Mounting base and sliding seat are not connected in a manner of universal hinging " as mode when print range is big, guide rod stretch it is excessive,
In order to solve this problem severe deviations can be generated to 20 position of spray head can make to be connected to runner assembly by runner assembly 3
Spray head 20 on 3 moves horizontally, and three third motors 16 drive third Knucle-gear 14 to rotate simultaneously, by third Knucle-gear 14 with
The engagement of second Knucle-gear 10, thus drives the second Knucle-gear 10 to rotate, thus the spray for making strut 12 and being connected on strut 12
First 20 generate translation, improve mobile accuracy, drive the rotation of the first Knucle-gear 8, the first Knucle-gear 8 by first motor 9
It is engaged with gear 7, so that sliding block 2 be enable to move up and down, so that spray head 20 be driven to adjust position, and can also generate spray head at this time
The case where 20 inclination, the angle of spray head 20, when 19 run-off the straight of adjusting block, contact block can be adjusted well by balanced component 5
25 also tilt, and sphere 22 and contact 26 squeeze, and connect contact 26 with contact block 25, electric signal occur to PLC, PLC control is close
One third motor 16 of the block contact block 25 is opened, and third motor 16 drives screw rod 17 to rotate, and the rotation of screw rod 17 makes to make to adjust
One jiao of locking nub 19 is subjected to displacement, to keep adjusting block 19 mobile to horizontal direction, when adjusting block 19 keeps horizontality, is drawn
It restricts parallel with contact block 25, sphere 22 is separated with contact 26, no longer adjustment 19 position of adjusting block, and spray head 20 is in vertical shape at this time
State.
The invention has the advantages that the accuracy it is high 3D printer it is ingenious in design, feasibility is high, passes through sliding block 2
Sliding is adjustable the height of spray head 20, the print range and accuracy height of spray head 20 can be improved by runner assembly 3, by flat
Weighing apparatus component 5 can make spray head 20 remain vertical state, ensure that printing precision, improve print quality.
Taking the above-mentioned ideal embodiment according to the present invention as inspiration, through the above description, relevant staff is complete
Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention
Property range is not limited to the contents of the specification, it is necessary to which the technical scope thereof is determined according to the scope of the claim.
Claims (10)
1. a kind of 3D printer that accuracy is high, which is characterized in that including shell (1), pillar (6), sliding block (2), runner assembly
(3), connecting rod (4), PLC and balanced component (5)；
The section of the shell (1) is triangle, and there are three the pillars (6), and the section of three pillars (6) is displaced shell respectively
(1) on three angles in section, the pillar (6) is vertically arranged, and there are three the sliding blocks (2), and three sliding blocks (2) are respectively sleeved at
On three pillars (6), there are three the runner assemblies (3), and three runner assemblies (3) are respectively fixedly disposed at three sliding blocks (2)
On, the connecting rod (4) has three, one end and runner assembly (3) of the connecting rod (4) hingedly, the other end of the connecting rod (4) with
Balanced component (5) is hinged；
First motor (9) and the first Knucle-gear (8) are additionally provided in the sliding block (2), the side of the pillar (6) is equipped with a gear
(7), described gear (7) is vertically arranged, first motor (9) driving the first Knucle-gear (8) rotation, first Knucle-gear
(8) it is engaged with a gear (7), the pillar (6) and gear (7) both pass through sliding block (2)；
The runner assembly (3) includes the second Knucle-gear (10), bearing (11), strut (12), the second motor (13) and third circle
Gear (14), the bearing (11) and the second Knucle-gear (10) are coaxially disposed, and the inner ring of the bearing (11) and sliding block (2) are fixed
Connection, the outer ring of the bearing (11) are fixedly connected with the second Knucle-gear (10), and one end of the strut (12) is fixedly connected on
On second Knucle-gear (10), the other end of the strut (12) and connecting rod (4) hingedly, the second motor (13) driving the
Three Knucle-gears (14) rotation, the third Knucle-gear (14) are engaged with the second Knucle-gear (10)；
The balanced component (5) include third motor (16), fixed block (15), screw rod (17), adjusting block (19), spray head (20) and
Balancing unit (18), there are four the third motors (16), and four third motors (16) are arranged at the lower section of fixed block (15),
Four third motors (16) are arranged in arrays, and the screw rod (17) has four, and one end of the screw rod (17) is connected to four
On the output shaft of a third motor (16), the other end of the screw rod (17) is penetrated adjusting block (19), the adjusting block (19)
It is equipped with and is located at the lower section of fixed block (15), the balancing unit with screw rod (17) matched internal screw thread, the adjusting block (19)
(18) it is located in adjusting block (19), the spray head (20) is located at the underface of adjusting block (19)；
The balancing unit (18) includes drawstring, sphere (22), limited block (23), spring (24), contact block (25) and contact (26),
In one end connection adjusting block (19) of the drawstring, the other end of the drawstring is connect with sphere (22), and the drawstring is set vertically
It sets, there are four the springs (24), and one end of the spring (24) is connected on limited block (23), and the contact (26) has four
A, the other end of the spring (24) is connected on contact (26), and the spring (24) is vertically arranged, four contacts (26)
It is circumferentially evenly distributed on the periphery of sphere (22), gap, the contact block (25) are equipped between the contact (26) and sphere (22)
There are four, four contact blocks (25) are circumferentially evenly distributed on the periphery of contact (26), and the contact block (25) is located at the one of contact (26)
Side, is equipped with gap between the contact block (25) and contact (26), the contact block (25) is electrically connected with PLC.
2. the high 3D printer of accuracy as described in claim 1, which is characterized in that be additionally provided with and push away on the limited block (23)
Block (28) and bolt (27), the pushing block (28) is horizontally disposed, and the pushing block (28) is slidably connected with limited block (23), described to push away
Block (28) is equipped with bolt (27), the bolt (27) pass through pushing block (28) and limited block (23) against.
3. the high 3D printer of accuracy as described in claim 1, which is characterized in that be additionally provided with bullet on the contact (26)
Piece, the contact (26) by elastic slice and contact block (25) against.
4. the high 3D printer of accuracy as described in claim 1, which is characterized in that the sphere (22) is ball.
5. the high 3D printer of accuracy as described in claim 1, which is characterized in that the diameter of the third Knucle-gear (14)
Less than the diameter of the second Knucle-gear (10).
6. the high 3D printer of accuracy as described in claim 1, which is characterized in that the fixed block (15) and adjusting block
(19) gag lever post is additionally provided between, the both ends of the gag lever post are hinged respectively at fixed block (15) and adjusting block (19).
7. the high 3D printer of accuracy as described in claim 1, which is characterized in that the making material of the drawstring is steel wire
(21)。
8. the high 3D printer of accuracy as described in claim 1, which is characterized in that the first motor (9), the second motor
(13), third motor (16) is servo motor.
9. the high 3D printer of accuracy as claimed in claim 2, which is characterized in that the one of the close drawstring of the pushing block (28)
End is equipped with rubber block.
10. the high 3D printer of accuracy as described in claim 1, which is characterized in that the making material of the connecting rod (4) is
Stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710003955.6A CN106827538B (en) | 2017-01-04 | 2017-01-04 | A kind of 3D printer that accuracy is high |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710003955.6A CN106827538B (en) | 2017-01-04 | 2017-01-04 | A kind of 3D printer that accuracy is high |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106827538A CN106827538A (en) | 2017-06-13 |
| CN106827538B true CN106827538B (en) | 2019-01-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710003955.6A Expired - Fee Related CN106827538B (en) | 2017-01-04 | 2017-01-04 | A kind of 3D printer that accuracy is high |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107283836A (en) * | 2017-07-31 | 2017-10-24 | 泉州市泉港凯威信息技术咨询有限公司 | A kind of segmented 3D printer for being easy to printing to be inverted workpiece |
| CN108656520B (en) * | 2018-08-02 | 2023-10-31 | 张梦如 | 3D printer feeding system |
| CN109016494B (en) * | 2018-10-17 | 2024-04-02 | 云南三帝科技有限公司 | Transmission mechanism of suspension type 3D printer |
| CN109719941B (en) * | 2019-03-12 | 2024-02-13 | 沙洲职业工学院 | Automatic leak protection device of 3D printer shower nozzle |
| CN112590209B (en) * | 2020-11-25 | 2023-09-29 | 深圳市鑫恒畅科技有限公司 | Material stacks former fast based on 3D prints |
| CN112677330A (en) * | 2020-12-28 | 2021-04-20 | 重庆力磊加气混凝土制品有限公司 | Concrete air entrainment brick processing fluting device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205310838U (en) * | 2015-12-28 | 2016-06-15 | 清华大学 | 3D (three -dimensional) printer |
| CN106142571A (en) * | 2016-08-22 | 2016-11-23 | 吉林大学 | The ultrasonic droplet ejection of the many materials of infinitely variable speeds increases material and manufactures device and method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160311162A1 (en) * | 2015-04-24 | 2016-10-27 | Win-Hall Tech Sdn Bhd | Novel color 3d printer based on energy-curable color coating on transparent or translucent base material |
| CN205058619U (en) * | 2015-08-31 | 2016-03-02 | 济南大学 | Small -size delta 3D printer |
-
2017
- 2017-01-04 CN CN201710003955.6A patent/CN106827538B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205310838U (en) * | 2015-12-28 | 2016-06-15 | 清华大学 | 3D (three -dimensional) printer |
| CN106142571A (en) * | 2016-08-22 | 2016-11-23 | 吉林大学 | The ultrasonic droplet ejection of the many materials of infinitely variable speeds increases material and manufactures device and method |
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| CN106827538A (en) | 2017-06-13 |
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