CN107053670A - It is a kind of that there is the 3D printer for preventing spherical work-piece from producing deformation - Google Patents
It is a kind of that there is the 3D printer for preventing spherical work-piece from producing deformation Download PDFInfo
- Publication number
- CN107053670A CN107053670A CN201710196047.3A CN201710196047A CN107053670A CN 107053670 A CN107053670 A CN 107053670A CN 201710196047 A CN201710196047 A CN 201710196047A CN 107053670 A CN107053670 A CN 107053670A
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- Prior art keywords
- piece
- motor
- knucle
- gear
- printer
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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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- 230000007246 mechanism Effects 0.000 claims abstract description 19
- 230000000712 assembly Effects 0.000 claims abstract description 16
- 238000000429 assembly Methods 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims 1
- 238000007639 printing Methods 0.000 abstract description 14
- 238000012986 modification Methods 0.000 abstract description 3
- 230000004048 modification Effects 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000010146 3D printing Methods 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000013178 mathematical model Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
Classifications
-
- 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
- B33Y80/00—Products made by additive manufacturing
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Coating Apparatus (AREA)
Abstract
The present invention relates to a kind of 3D printer for having and preventing spherical work-piece from producing deformation, including feeding unit, drive mechanism, shower nozzle, housing, PLC and base, clamping device is additionally provided with the base, switching mechanism and pallet, the switching mechanism includes cylinder, support, second motor, first Knucle-gear, second Knucle-gear and clamping device, the clamp assemblies include the first motor, first gag lever post, screw mandrel, grip block and fixed plate, print the annulus in the middle part of workpiece first when printing spherical work-piece, inverted hemispherical is printed as upwards, the hemispherical workpiece turning for making printing complete by switching mechanism again comes, it is placed on the hemispherical stopper slot on pallet, then the internal mechanism and other half-hemisphere shape shell of printing spherical work-piece are carried out, so as to which the spherical housing avoided in printing hemispherical workpiece is contacted with the point of base, so as to avoid the modification of spherical work-piece, the print quality of raising.
Description
Technical field
It is more particularly to a kind of that there is the 3D printing for preventing spherical work-piece from producing deformation the present invention relates to 3D printer field
Machine.
Background technology
3D printer is a kind of machine of a kind of accumulation manufacturing technology, i.e. RP technique, and it is a kind of mathematical model
Based on file, with special wax material, powdery metal or plastics etc. can jointing material, pass through printing jointing material from level to level
To manufacture the object of three-dimensional.
The bottom of spherical work-piece is typically first printed when 3D printer prints spherical work-piece, because jointing material is after the heating
Quality is softer, and spherical work-piece is that point is contacted with base, spherical work-piece is sent deformation, so as to influence print quality.
The content of the invention
The technical problem to be solved in the present invention is：Prevent spherical to overcome the deficiencies in the prior art to have there is provided one kind
Workpiece produces the 3D printer of deformation.
It is of the present invention to solve the problems, such as that used technical scheme is：It is a kind of that there is the 3D printing for preventing spherical work-piece from producing deformation
Clamping device, tipper are additionally provided with machine, including feeding unit, drive mechanism, shower nozzle, housing, PLC and base, the base
Structure and pallet；
The upside of the pallet is provided with stopper slot, and the stopper slot is hemispherical, and the pallet is located in housing, the support
Disk is located at the top of base；
The switching mechanism includes cylinder, support, the second motor, the first Knucle-gear, the second Knucle-gear and clamping device, institute
Stating cylinder promotes support to move up and down, and the both sides of the clamping device are connected by bearing with support, and the clamping device is set
Have and the second Knucle-gear is additionally provided with the both sides of bearing, second motor drives the rotation of the first Knucle-gear, second motor is consolidated
Surely it is arranged on support, the first Knucle-gear and the second Knucle-gear engagement；
The clamping device includes returning face plate and clamp assemblies, and the clamp assemblies have two, and two clamp assemblies are all provided with
Put on returning face plate, the clamp assemblies are slidably connected with returning face plate, the clamp assemblies include the first motor, first spacing
Bar, screw mandrel, grip block and fixed plate, the first motor drive screw rotation, first motor are fixedly installed on fixed plate
On, the grip block is provided with the internal thread matched with screw mandrel, and one end of the screw mandrel penetrates grip block, and the grip block is remote
One end of screw mandrel is provided with holding tank, and the holding tank is semicircle, and one end of first gag lever post is fixedly installed on fixed plate
On, the other end of first gag lever post penetrates grip block.
First motor, the second motor, cylinder are electrically connected with PLC.
Preferably, in order to when clamping workpiece more firmly and will not defective work piece, on the grip block also
Provided with grip unit, the grip unit includes grip block, the second gag lever post, spring, fixed block, the first contact block and second and touched
Block, the grip unit has several, and each grip unit is uniformly arranged on holding tank, and the grip block passes through spring and fixation
Block is connected, and one end of second gag lever post is connected with grip block, and one end of second gag lever post is connected with the first contact block, institute
State the second gag lever post to be arranged in parallel with spring, second contact block is fixedly installed on fixed block, second contact block is located at the
The side of one contact block, first contact block is connected with external power source, and second contact block is connected with PLC.
In clamping workpiece, grip block and workpiece against, make spring-compressed, make the first contact block and the second contact block against, when
First contact block and the second contact block against when, electric signal is sent to PLC, now clamp position is sufficiently stable.
Preferably, being additionally provided with bellows on spring, the spring to protect.
Preferably, firmness and durability in order to increase bellows, the bellows are steel band bellows.
Preferably, in order to be preferably oriented to grip block, first gag lever post has two, and two the first gag lever posts are closed
It is symmetrical arranged in the first motor.
Preferably, returning face plate rotates for convenience, the diameter of first Knucle-gear is less than the diameter of the second Knucle-gear.
Preferably, controlling for convenience, first motor, the second motor are servomotor.
Preferably, in order to protect the first Knucle-gear and the second Knucle-gear, first Knucle-gear and the second Knucle-gear it
Between apply organic oil.
Preferably, in order to which book grip block slides more stable on returning face plate, dovetail is additionally provided with the grip block,
Dovetail groove is additionally provided with the returning face plate, the dovetail is matched with dovetail groove.
Preferably, the firmness in order to increase grip block, the making material of the grip block is steel.
The beneficial effects of the invention are as follows should can grasp with preventing that the 3D printer of spherical work-piece generation deformation is ingenious in design
The property made is high, prints the annulus in the middle part of workpiece first when printing spherical work-piece, inverted hemispherical is printed as upwards, then by turning over
The hemispherical workpiece turning that rotation mechanism makes printing complete comes, and is placed on the hemispherical stopper slot on pallet, is then printed
The internal mechanism of spherical work-piece and other half-hemisphere shape shell, thus avoid printing hemispherical workpiece spherical housing with
The point contact of base, so that the modification of spherical work-piece is avoided, the print quality of raising.
Brief description of the drawings
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1 is the structural representation of the 3D printer of the prior art of the present invention.
Fig. 2 is that a kind of structure of switching mechanism with the 3D printer for preventing spherical work-piece generation deformation of the present invention is shown
It is intended to.
Fig. 3 is that a kind of structure of clamping device with the 3D printer for preventing spherical work-piece generation deformation of the present invention is shown
It is intended to.
Fig. 4 is a kind of structural representation of pallet with the 3D printer for preventing spherical work-piece generation deformation of the present invention
Figure.
Fig. 5 is that a kind of structure of grip unit with the 3D printer for preventing spherical work-piece generation deformation of the present invention is shown
It is intended to.
In figure：1. feeding unit, 2. drive mechanisms, 3. shower nozzles, 4. housings, 5. bases, 6. first motors, 7. first is spacing
Bar, 8. screw mandrels, 9. clamp assemblies, 10. holding tanks, 11. returning face plates, 12. grip blocks, 13. fixed plates, 14. second Knucle-gears,
15. cylinder, 16. second motors, 17. first Knucle-gears, 18. supports, 19. second gag lever posts, 20. springs, 21. first contact blocks,
22. the second contact block, 23. fixed blocks, 24. grip blocks, 25. stopper slots, 26. pallets.
Embodiment
In conjunction with the accompanying drawings, the present invention is further explained in detail.These accompanying drawings are simplified schematic diagram, only with
Illustration illustrates the basic structure of the present invention, therefore it only shows the composition relevant with the present invention.
As Figure 1-5, it is a kind of that there is the 3D printer for preventing spherical work-piece from producing deformation, including feeding unit 1, driving
Clamping device, switching mechanism and pallet 26 are additionally provided with mechanism 2, shower nozzle 3, housing 4, PLC and base 5, the base 5；
The upside of the pallet 26 is provided with stopper slot 25, and the stopper slot 25 is hemispherical, and the pallet 26 is located at housing 4
Interior, the pallet 26 is located at the top of base 5；
The switching mechanism includes cylinder 15, support 18, the second motor 16, the first Knucle-gear 17, the and of the second Knucle-gear 14
Clamping device, the cylinder 15 promotes support 18 to move up and down, and the both sides of the clamping device are connected by bearing with support 18
Connect, the clamping device is additionally provided with the second Knucle-gear 14 on the both sides provided with bearing, second motor 16 drives the first knuckle-tooth
Wheel 17 is rotated, and second motor 16 is fixedly installed on mount 18, and the Knucle-gear 14 of the first Knucle-gear 17 and second is engaged；
The clamping device includes returning face plate 11 and clamp assemblies 9, and the clamp assemblies 9 have two, two clamp assemblies 9
It is arranged on returning face plate 11, the clamp assemblies 9 are slidably connected with returning face plate 11, the clamp assemblies 9 include the first motor
6th, the first gag lever post, screw mandrel 8, grip block 12 and fixed plate 13, the drive screw 8 of the first motor 6 rotate, first motor
6 are fixedly installed in fixed plate 13, and the grip block 12 is provided with the internal thread matched with screw mandrel 8, and one end of the screw mandrel 8 is worn
Enter grip block 12, the described one end of grip block 12 away from screw mandrel 8 is provided with holding tank 10, and the holding tank 10 is semicircle, described
One end of first gag lever post is fixedly installed in fixed plate 13, and the other end of first gag lever post penetrates grip block 12.
First motor 6, the second motor 16, cylinder 15 are electrically connected with PLC.
Preferably, in order to when clamping workpiece more firmly and will not defective work piece, on the grip block 12
Grip unit is additionally provided with, the grip unit includes grip block 24, the second gag lever post 19, spring 20, fixed block 23, the first contact block
21 and second contact block 22, the grip unit has several, and each grip unit is uniformly arranged on holding tank 10, the grip block
24 are connected by spring 20 with fixed block 23, and one end of second gag lever post 19 is connected with grip block 24, and described second is spacing
One end of bar 19 is connected with the first contact block 21, and second gag lever post 19 be arranged in parallel with spring 20, and second contact block 22 is consolidated
Surely it is arranged on fixed block 23, second contact block 22 is located at the side of the first contact block 21, first contact block 21 and external electrical
Source is connected, and second contact block 22 is connected with PLC.
In clamping workpiece, grip block 24 and workpiece are against compressing spring 20, make the first contact block 21 and the second contact block 22
Against, when the first contact block 21 and the second contact block 22 against when, electric signal is sent to PLC, now clamp position is sufficiently stable.
Preferably, being additionally provided with bellows on spring 20, the spring 20 to protect.
Preferably, firmness and durability in order to increase bellows, the bellows are steel band bellows.
Preferably, in order to be preferably oriented to grip block 12, first gag lever post has two, two the first gag lever posts
It is symmetrical arranged on the first motor 6.
Preferably, returning face plate 11 rotates for convenience, the diameter of first Knucle-gear 17 is less than the second Knucle-gear 14
Diameter.
Preferably, controlling for convenience, first motor 6, the second motor 16 are servomotor.
Preferably, in order to protect the first Knucle-gear 17 and the second Knucle-gear 14, first Knucle-gear 17 and second is justified
Organic oil is applied between gear 14.
Preferably, in order to which book grip block 12 slides more stable on returning face plate 11, being additionally provided with the grip block 12
Dovetail groove is additionally provided with dovetail, the returning face plate 11, the dovetail is matched with dovetail groove.
Preferably, the firmness in order to increase grip block 12, the making material of the grip block 12 is steel.
Operationally, inverted hemispherical workpiece shell is printed first, is not allowed to be also easy to produce deformation during printing, is finished in printing
PLC controls cylinder 15 to move down afterwards, then controls the unlatching of the first motor 6, and the drive screw 8 of the first motor 6 rotates, so that grip block
12 slide on returning face plate 11, and two grip blocks 12 are close to each other, so as to clamp work by the grip unit on holding tank 10
Part, PLC is then turned on the second motor 16 and drives the first Knucle-gear 17 to rotate by controlling cylinder 15 to move up clamping device, and first
The Knucle-gear 14 of Knucle-gear 17 and second is engaged, so that workpiece rotates 180 degree, workpiece is being dropped to pallet 26 by cylinder 15
On, PLC controls the first motor 6 to overturn, so that printed hemispherical workpiece is placed on the hemispherical stopper slot 25 of pallet 26
On, then the internal mechanism and other half-hemisphere shape shell of workpiece are printed, so as to complete printing.
Compared with prior art, there should be the 3D printer for preventing spherical work-piece from producing deformation ingenious in design, operability
Height, the annulus in the middle part of workpiece is printed when printing spherical work-piece, inverted hemispherical is printed as upwards, then pass through tipper first
The hemispherical workpiece turning that structure makes printing complete comes, and is placed on the hemispherical stopper slot 25 on pallet 26, is then printed
The internal mechanism of spherical work-piece and other half-hemisphere shape shell, thus avoid printing hemispherical workpiece spherical housing with
The point contact of base 5, so that the modification of spherical work-piece is avoided, the print quality of raising.
Using the above-mentioned desirable embodiment according to the present invention as enlightenment, by above-mentioned 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 scope is not limited to the content on specification, it is necessary to its technical scope is determined according to right.
Claims (10)
1. a kind of have the 3D printer for preventing spherical work-piece from producing deformation, it is characterised in that including feeding unit (1), driving
Clamping device, switching mechanism and support are additionally provided with mechanism (2), shower nozzle (3), housing (4), PLC and base (5), the base (5)
Disk (26)；
The upside of the pallet (26) is provided with stopper slot (25), and the stopper slot (25) is hemispherical, and the pallet (26) is located at
In housing (4), the pallet (26) is located at the top of base (5)；
The switching mechanism includes cylinder (15), support (18), the second motor (16), the first Knucle-gear (17), the second Knucle-gear
(14) and clamping device, the cylinder (15) promotes support (18) to move up and down, and the both sides of the clamping device pass through bearing
It is connected with support (18), the clamping device is additionally provided with the second Knucle-gear (14), second motor on the both sides provided with bearing
(16) the first Knucle-gear of driving (17) rotation, second motor (16) is fixedly installed on support (18), first knuckle-tooth
Take turns (17) and the second Knucle-gear (14) engagement；
The clamping device includes returning face plate (11) and clamp assemblies (9), and the clamp assemblies (9) have two, two clamping groups
Part (9) is arranged on returning face plate (11), and the clamp assemblies (9) are slidably connected with returning face plate (11), the clamp assemblies (9)
Including the first motor (6), the first gag lever post (7), screw mandrel (8), grip block (12) and fixed plate (13), first motor (6)
Drive screw (8) is rotated, and first motor (6) is fixedly installed in fixed plate (13), the grip block (12) be provided with
The internal thread of screw mandrel (8) matching, one end of the screw mandrel (8) penetrates grip block (12), and the grip block (12) is away from screw mandrel (8)
One end be provided with holding tank (10), the holding tank (10) for semicircle, one end of first gag lever post (7) is fixedly installed on
In fixed plate (13), the other end of first gag lever post (7) penetrates grip block (12).
First motor (6), the second motor (16), cylinder (15) are electrically connected with PLC.
2. as claimed in claim 1 have the 3D printer for preventing spherical work-piece from producing deformation, it is characterised in that the clamping
It is additionally provided with grip unit on plate (12), the grip unit includes grip block (24), the second gag lever post (19), spring (20), solid
Determine block (23), the first contact block (21) and the second contact block (22), the grip unit there are several, and each grip unit is uniformly arranged on
On holding tank (10), the grip block (24) is connected by spring (20) with fixed block (23), second gag lever post (19)
One end is connected with grip block (24), and one end of second gag lever post (19) is connected with the first contact block (21), and described second is spacing
Bar (19) is be arranged in parallel with spring (20), and second contact block (22) is fixedly installed on fixed block (23), second contact block
(22) be located at the side of the first contact block (21), first contact block (21) is connected with external power source, second contact block (22) and
PLC connections.
3. as claimed in claim 2 have the 3D printer for preventing spherical work-piece from producing deformation, it is characterised in that the spring
(20) bellows is additionally provided with.
4. as claimed in claim 3 have the 3D printer for preventing spherical work-piece from producing deformation, it is characterised in that the ripple
Manage as steel band bellows.
5. as claimed in claim 1 have the 3D printer for preventing spherical work-piece from producing deformation, it is characterised in that described first
Gag lever post (7) has two, and two the first gag lever posts (7) are symmetrical arranged on the first motor (6).
6. as claimed in claim 1 have the 3D printer for preventing spherical work-piece from producing deformation, it is characterised in that described first
The diameter of Knucle-gear (17) is less than the diameter of the second Knucle-gear (14).
7. as claimed in claim 1 have the 3D printer for preventing spherical work-piece from producing deformation, it is characterised in that described first
Motor (6), the second motor (16) are servomotor.
8. as claimed in claim 1 have the 3D printer for preventing spherical work-piece from producing deformation, it is characterised in that described first
Organic oil is applied between Knucle-gear (17) and the second Knucle-gear (14).
9. as claimed in claim 1 have the 3D printer for preventing spherical work-piece from producing deformation, it is characterised in that the clamping
It is additionally provided with plate (12) on dovetail, the returning face plate (11) and is additionally provided with dovetail groove, the dovetail is matched with dovetail groove.
10. as claimed in claim 1 have the 3D printer for preventing spherical work-piece from producing deformation, it is characterised in that the folder
The making material for holding plate (12) is steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710196047.3A CN107053670B (en) | 2017-03-29 | 2017-03-29 | It is a kind of with prevent spherical work-piece generate deformation 3D printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710196047.3A CN107053670B (en) | 2017-03-29 | 2017-03-29 | It is a kind of with prevent spherical work-piece generate deformation 3D printer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107053670A true CN107053670A (en) | 2017-08-18 |
| CN107053670B CN107053670B (en) | 2019-06-14 |
Family
ID=59620508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710196047.3A Active CN107053670B (en) | 2017-03-29 | 2017-03-29 | It is a kind of with prevent spherical work-piece generate deformation 3D printer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107053670B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108582772A (en) * | 2018-04-23 | 2018-09-28 | 新沂博瑞工业设计有限公司 | A kind of substrate formula 3D printer high up in the air |
| CN108818192A (en) * | 2018-09-11 | 2018-11-16 | 江苏晨峰铝业科技有限公司 | A kind of diamond grinding device convenient for adjusting |
| CN110102766A (en) * | 2019-06-17 | 2019-08-09 | 中国人民解放军陆军军医大学第一附属医院 | A kind of fixed device of 3D printing |
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| EP0591553A1 (en) * | 1992-04-23 | 1994-04-13 | Kanegafuchi Kagaku Kogyo Kabushiki Kaisha | Skinned in-mold expansion molding product of polypropylene resin and production thereof |
| CN103341629A (en) * | 2013-06-24 | 2013-10-09 | 李虬 | 3D printing method for machining workpiece with inner hollow structure |
| CN204582456U (en) * | 2013-12-31 | 2015-08-26 | 耐克创新有限合伙公司 | The golf that 3D prints |
| CN105398053A (en) * | 2014-08-26 | 2016-03-16 | 泰科电子(上海)有限公司 | 3d printing system |
| US20170066193A1 (en) * | 2015-09-04 | 2017-03-09 | Electronics And Telecommunications Research Institute | 3d multifunctional device with 3d scanning function and 3d printing function and operation method thereof |
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2017
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0591553A1 (en) * | 1992-04-23 | 1994-04-13 | Kanegafuchi Kagaku Kogyo Kabushiki Kaisha | Skinned in-mold expansion molding product of polypropylene resin and production thereof |
| CN103341629A (en) * | 2013-06-24 | 2013-10-09 | 李虬 | 3D printing method for machining workpiece with inner hollow structure |
| CN204582456U (en) * | 2013-12-31 | 2015-08-26 | 耐克创新有限合伙公司 | The golf that 3D prints |
| CN105398053A (en) * | 2014-08-26 | 2016-03-16 | 泰科电子(上海)有限公司 | 3d printing system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108582772A (en) * | 2018-04-23 | 2018-09-28 | 新沂博瑞工业设计有限公司 | A kind of substrate formula 3D printer high up in the air |
| CN108818192A (en) * | 2018-09-11 | 2018-11-16 | 江苏晨峰铝业科技有限公司 | A kind of diamond grinding device convenient for adjusting |
| CN110102766A (en) * | 2019-06-17 | 2019-08-09 | 中国人民解放军陆军军医大学第一附属医院 | A kind of fixed device of 3D printing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107053670B (en) | 2019-06-14 |
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Effective date of registration: 20190508 Address after: 710049 First Floor of Software Building of Jiaotong University, Beilin District, Xi'an City, Shaanxi Province Applicant after: SHAANXI HENGTONG INTELLIGENT MACHINE Co.,Ltd. Address before: 518000 Guangdong Nanshan District Shenzhen Nanshan digital cultural industry base East Tower 3004 Applicant before: SHENZHEN LEYE TECHNOLOGY Co.,Ltd. |
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