CN116275134B - High-stability laser 3D printing platform stabilizing mechanism - Google Patents
High-stability laser 3D printing platform stabilizing mechanism Download PDFInfo
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- CN116275134B CN116275134B CN202310263624.1A CN202310263624A CN116275134B CN 116275134 B CN116275134 B CN 116275134B CN 202310263624 A CN202310263624 A CN 202310263624A CN 116275134 B CN116275134 B CN 116275134B
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- gear
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- 238000010146 3D printing Methods 0.000 title claims abstract description 20
- 230000000087 stabilizing effect Effects 0.000 title claims abstract description 16
- 230000007246 mechanism Effects 0.000 title claims description 30
- 238000007639 printing Methods 0.000 claims abstract description 22
- 239000007788 liquid Substances 0.000 claims abstract description 20
- 239000000758 substrate Substances 0.000 claims description 15
- 230000006835 compression Effects 0.000 claims description 11
- 238000007906 compression Methods 0.000 claims description 11
- 238000001514 detection method Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 7
- 239000000463 material Substances 0.000 abstract description 5
- 230000008859 change Effects 0.000 abstract description 2
- 244000309464 bull Species 0.000 description 23
- 239000002184 metal Substances 0.000 description 5
- 239000000843 powder Substances 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000000149 argon plasma sintering Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
- B22F12/30—Platforms or substrates
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
Abstract
The application discloses be applied to platform stabilizing mean for laser 3D printing of 3D printing apparatus technical field, when the slide knot phenomenon appears in certain screw thread, or when the broken phenomenon appears in the screw thread recess, the base plate can take place not hard up, so the rack can take place to slide under reset spring's elasticity effect, the rack drives the trigger piece of bottom joint and slides, the trigger piece can in time be closed printing the main part with contact switch contact, thereby it is after long-time use to solve the screw thread, lead to connecting failure, influence mounting platform's stability, so that the problem of flaw appears in the object of printing, secondly, drive first dwang gyration through first gear, can lead to the thrust to the valve inadequately, remind the colored solution inflow in the window to go out in the liquid hole, remind window colour change to play the warning effect, can detect and report to the police to the not hard up condition of bolt effectively, a large amount of manpower and materials have been saved, and work efficiency is improved.
Description
Technical Field
The application relates to the technical field of 3D printing equipment, in particular to a platform stabilizing mechanism for laser 3D printing with high stability.
Background
The laser 3D printing technology is one of emerging technologies, is high-precision metal part laser 3D printing equipment with leading efficiency and largest printing part size in the world at present, and is based on the principle that metal powder laid layer by layer is sintered by laser to form a metal printed matter; the platform and the storage frame form a storage space for containing metal powder, and the platform descends step by step along with the laser sintering step through a jacking mechanism or a screw rod mechanism, so that the containing thickness of the metal powder gradually increases to be matched with smooth printing work.
When current 3D printer mounting platform uses, offer the screw hole on the base plate, pass through bolted connection with base plate and base station, the base plate is used for bearing and prints the work piece, need dismantle repeatedly, and the screw thread can appear the slide knot phenomenon after long-time use, perhaps screw thread recess breakage phenomenon, leads to connecting inefficacy, influences mounting platform's stability to the flaw appears in the object of printing.
Therefore, the applicant proposes guessing that when the base plate and the base station shake, the printing equipment can be stopped in time, and a reminding effect can be achieved for staff, so that the loss of materials can be reduced, the equipment can be maintained rapidly, and the working efficiency is improved.
Disclosure of Invention
This application aim at solves base plate and base station and gets up through bolted connection, and the base plate is used for bearing and prints the work piece, needs dismantle repeatedly, and the screw thread can appear the slide knot phenomenon after long-time use, perhaps screw thread recess damage phenomenon, leads to connecting failure, influences mounting platform's stability to the problem of flaw appears in the object of printing.
Compared with the prior art, the high-stability laser 3D printing platform stabilizing mechanism comprises a printing main body, a base station movably installed in the printing main body and a substrate installed above the base station, wherein the base station is connected with the substrate through a plurality of bolts, and a detection mechanism for detecting bolt tightness is installed on the base station; the detection mechanism comprises a compression ring for allowing bolts to pass through, an annular groove for accommodating the compression ring to slide is formed in the base, liquid is filled in the annular groove, a push rod driven by the liquid is slidably connected in the base, a rack slidably connected with the base is fixed at one end of the push rod, a trigger piece slidably connected with the base is arranged at the bottom of the rack, a clamping block connected with the rack is fixed at one side of the trigger piece, which faces the rack, of the trigger piece, a contact switch is arranged at one end, which faces the contact switch, of the trigger piece, a compression spring is fixed between one end of the trigger piece, which faces the contact switch, and the inner wall of the base, and a reset spring is fixed between the rack and the inner wall of the base.
This device appears the slipping phenomenon when certain screw thread, perhaps the screw thread recess appears when damaged phenomenon, and the base plate can take place not hard up, so the rack can take place to slide under reset spring's elasticity effect, and the rack drives the trigger piece of bottom joint and slides, and the trigger piece can be with contact switch contact, because contact switch is connected with the treater electricity in the printing main part, so contact switch can send the signal in time will print the main part and close, effectively avoids the mounting platform unstable time, leads to the problem that the object of printing appears the flaw.
Optionally, a rack-driven alarm mechanism is arranged in the base station, and the alarm mechanism comprises a first gear and a second gear, wherein the first gear and the second gear are respectively positioned at two sides of the rack and meshed with the rack.
Optionally, first gear middle part threaded connection has first bull stick, and second gear middle part threaded connection has the second bull stick, first bull stick and second bull stick all with base inner wall perpendicular sliding connection, and torsion spring has all been cup jointed at first bull stick and second bull stick top.
Optionally, the outside of first bull stick and second bull stick all is fixed with the spacing with base station inner wall sliding connection for restrict first bull stick and second bull stick and take place the rotation.
Optionally, the first bull stick and second bull stick bottom all rotate and are connected with the piston, and two first cavity and second cavity with piston sliding connection respectively have been seted up to the base station inside, print the main part outside and install the warning window.
Optionally, a liquid inlet is formed in the reminding window, the liquid inlet is communicated with the first cavity through a pipeline, and the first cavity is filled with the colored solution.
Optionally, a liquid outlet hole is further formed in the reminding window, a valve is slidably connected in the liquid outlet hole, one end of the valve is connected with the second cavity through a hose, and a medium is filled in the second cavity.
Optionally, a guiding groove is formed in the outer side of the pressing ring, and a guiding block in sliding connection with the guiding groove is fixed in the base station.
Optionally, a plurality of color development layers are fixed on the top of the pressure ring, and a plurality of marking grooves are formed in the substrate corresponding to the number of the color development layers, and the marking grooves are located above the color development layers.
Optionally, a limit groove corresponding to the compression ring is formed at the bottom of the substrate, and the limit groove is communicated with the marking groove.
Compared with the prior art, the advantage of this application lies in:
(1) Through the clamping ring, when the slipping phenomenon appears in certain screw thread, or when the broken phenomenon appears in the screw thread recess, the base plate can take place not hard up, so the rack can take place to slide under reset spring's elasticity effect, the rack drives the trigger piece of bottom joint and slides, the trigger piece can be with contact switch contact, because contact switch is connected with the treater electricity in the printing main part, so contact switch can send the signal in time with the printing main part close, effectively avoid the mounting platform unstable time, lead to the problem that the object of printing appears the flaw.
(2) The first rotating rod is driven to rotate through the first gear, so that the thrust to the valve is insufficient, the colored solution in the reminding window flows into the liquid outlet hole, the reminding window changes in color to play a role in reminding workers, the loosening condition of the bolts can be effectively detected and alarmed, and a large amount of manpower and material resources are saved.
(3) When a bolt at a certain position is loosened, the compression ring can move upwards under the action of the reset spring, so that dislocation occurs between the color developing layer and the marking groove, and a worker can quickly position and maintain the loosened bolt by watching whether the color developing layer corresponds to the marking groove or not, so that time is saved.
(4) When the rack moves, the first gear is driven to rotate first, so that the valve can be closed first, and the loss of the colored solution is effectively avoided.
(5) Through the cooperation of guiding groove and guiding block, make the clamping ring take place simultaneously and rotate at the downshift in-process, the color development layer corresponds each other with the mark groove when rotating to preset angle, and at this moment, the representation bolt is fastening state, the staff of being convenient for observes.
Drawings
FIG. 1 is a schematic perspective view of the present application;
FIG. 2 is a schematic view of a connection structure of a base and a substrate of the present application;
FIG. 3 is a schematic view of a substrate loosening structure according to the present application;
FIG. 4 is a schematic perspective view of a compression ring and rack of the present application;
FIG. 5 is a schematic diagram of the front view of the press ring and rack of the present application;
FIG. 6 is a schematic perspective view of a first gear and a second gear of the present application;
FIG. 7 is a schematic top view of the first gear and the second gear of the present application;
FIG. 8 is a schematic view of a valve structure of the present application;
FIG. 9 is a schematic view of the structure of the color layer of the present application;
fig. 10 is a schematic top view of a substrate and a marker groove of the present application.
The reference numerals in the figures illustrate:
1. a printing main body; 2. a base station; 3. a substrate; 4. a reminder window; 6. a compression ring; 7. a push rod; 8. a rack; 9. a trigger piece; 10. a contact switch; 11. a first gear; 12. a first rotating lever; 13. a second gear; 14. a second rotating rod; 16. a valve; 17. a color development layer; 18. a marking groove; 19. and a guide groove.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, but not all embodiments, and all other embodiments obtained by those skilled in the art without making creative efforts based on the embodiments in the present application are all within the scope of protection of the present application.
Example 1:
referring to fig. 1-4, the application discloses a high-stability laser 3D printing platform stabilizing mechanism, which comprises a printing main body 1, a base station 2 movably installed in the printing main body 1 and a substrate 3 installed above the base station 2, wherein the base station 2 and the substrate 3 are connected through a plurality of bolts, and a detection mechanism for detecting bolt tightness is installed on the base station 2; the detection mechanism comprises a pressing ring 6 for allowing bolts to pass through, an annular groove for accommodating the sliding of the pressing ring 6 is formed in the base 2, liquid is filled in the annular groove, a push rod 7 driven by the liquid is slidably connected inside the base 2, a rack 8 slidably connected with the base 2 is fixedly arranged at one end of the push rod 7, a trigger piece 9 slidably connected with the base 2 is arranged at the bottom of the rack 8, a clamping block connected with the rack 8 is fixedly arranged at one side of the trigger piece 9, which faces the rack 8, a contact switch 10 is arranged at one end, far away from the clamping block, of the trigger piece 9, the contact switch 10 is fixedly connected with the base 2, a compression spring is fixedly arranged between one end, facing the contact switch 10, of the trigger piece 9 and the inner wall of the base 2, and a reset spring is fixedly arranged between the rack 8 and the inner wall of the base 2.
Referring to fig. 3-5, when in use, firstly, the base plate 3 and the base station 2 are fixed through a plurality of bolts, the base plate 3 can downwards press the pressing ring 6 when being fixed, when the pressing ring 6 moves, the pressing ring 7 can be pressed by liquid to push the pushing rod 7, the pushing rod 7 pushes the rack 8 to move to a preset position and applies pressure to the reset spring, meanwhile, a clamping block on the trigger piece 9 can be clamped with the rack 8 to realize connection, when a certain thread has a slipping phenomenon or a thread groove has a breakage phenomenon, the base plate 3 can loose, so the rack 8 can slide under the elastic force of the reset spring, the rack 8 drives the trigger piece 9 clamped at the bottom to slide, the trigger piece 9 can be contacted with the contact switch 10, and the contact switch 10 can send a signal to timely close the printing main body 1, thereby effectively avoiding the problem that the printed object has flaws when the installation platform is unstable.
Example 2:
referring to fig. 6-8, compared with embodiment 1, the embodiment 2 of the application adds an alarm mechanism to remind the staff, so that the loosening condition of the bolt can be effectively detected and alarmed, a large amount of manpower and material resources are saved, and the embodiment is as follows:
the inside rack 8 driven alarm mechanism that is equipped with of base station 2, and alarm mechanism includes first gear 11 and second gear 13, first gear 11 and second gear 13 are located rack 8 both sides respectively and with rack 8 meshing, first gear 11 middle part threaded connection has first bull stick 12, and second gear 13 middle part threaded connection has second bull stick 14, first bull stick 12 and second bull stick 14 all with the perpendicular sliding connection of base station 2 inner wall, and torsion spring has all been cup jointed at first bull stick 12 and second bull stick 14 top, first bull stick 12 and second bull stick 14 bottom all rotate and are connected with the piston, and two first cavity and the second cavity with piston sliding connection respectively have been seted up to base station 2 inside, the warning window 4 is installed to printing main part 1 outside, set up the feed liquor hole in the warning window 4, and the feed liquor hole is through pipeline and first cavity intercommunication, the inside coloured solution that has still seted up in the warning window 4, and sliding connection has valve 16 in the feed liquor hole, valve 16 one end is connected with the second cavity through the hose, and medium is filled inside the second cavity.
Secondly, when rack 8 slides to reset spring direction, rack 8 can drive meshed first gear 11 rotation earlier, can drive threaded connection's first bull stick 12 to move down and extrude the medium in the second cavity when first gear 11 rotates, the medium can promote valve 16 through the hose and close the play liquid hole, then rack 8 drives second gear 13 rotation, the same reason, second gear 13 drives the coloured solution in the second bull stick 14 extrusion first cavity, coloured solution enters into warning window 4, afterwards, when base plate 3 takes place not hard up somewhere, rack 8 can restore the slip under reset spring's promotion, so drive first bull stick 12 gyration through first gear 11, lead to not enough thrust to valve 16, remind the coloured solution in window 4 to flow into in the liquid hole, remind window 4 colour change to play the warning effect to the staff, can detect and report to the police to the not hard up condition of bolt effectively, a large amount of manpower and materials have been saved, wherein, the medium can be liquid or gas.
It should be noted that, when the rack 8 moves, the first gear 11 is driven to rotate first, so that the valve can be closed first, loss of the colored solution is effectively avoided, and torsion applied to the first rotating rod 12 and the second rotating rod 14 by the torsion spring is convenient for the first rotating rod 12 and the second rotating rod 14 to restore to the initial positions.
Example 3:
referring to fig. 9-10, a guiding groove 19 is formed on the outer side of the pressing ring 6, guiding blocks slidably connected with the guiding groove 19 are fixed in the base 2, a plurality of color-developing layers 17 are fixed on the top of the pressing ring 6, a plurality of marking grooves 18 are formed on the substrate 3 corresponding to the number of the color-developing layers 17, the marking grooves 18 are located above the color-developing layers 17, a limiting groove corresponding to the pressing ring 6 is formed on the bottom of the substrate 3, and the limiting groove is communicated with the marking grooves 18.
Secondly, through the cooperation of guiding groove 19 and guiding block, make clamping ring 6 take place simultaneously to rotate at the downshift in-process, develop color layer 17 and mark groove 18 each other correspond when rotating to the angle of predetermineeing, when the bolt of somewhere is not hard up, clamping ring 6 can upwards move under reset spring's effect, and then lead to developing layer 17 and mark groove 18 to take place the dislocation, and the staff is through looking at developing layer 17 and mark groove 18 and corresponding, can fix a position the maintenance to the bolt of loosening fast, saves time.
The foregoing is only a preferred embodiment of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art, within the scope of the present application, should apply to the present application, and all equivalents and modifications as they come within the scope of the present application.
Claims (10)
1. The high-stability platform stabilizing mechanism for laser 3D printing comprises a printing main body (1), a base (2) movably installed in the printing main body (1) and a substrate (3) installed above the base (2), and is characterized in that the base (2) and the substrate (3) are connected through a plurality of bolts, and a detection mechanism for detecting bolt tightness is installed on the base (2);
the detection mechanism comprises a compression ring (6) which is penetrated by a bolt, a circular groove which is used for accommodating the compression ring (6) and is used for sliding is formed in the base station (2), liquid is filled in the circular groove, a push rod (7) which is driven by the liquid is connected to the inside of the base station (2) in a sliding mode, a rack (8) which is connected with the base station (2) in a sliding mode is fixed at one end of the push rod (7), a trigger piece (9) which is connected with the base station (2) in a sliding mode is arranged at the bottom of the rack (8), a clamping block which is connected with the rack (8) in a sliding mode is fixed at one side of the trigger piece (9) which faces the rack (8), a contact switch (10) is arranged at one end of the trigger piece (9) which is far away from the clamping block, a compression spring is fixed between one end of the trigger piece (9) which faces the contact switch (10) and the inner wall of the base station (2), and a reset spring is fixed between the rack (8) and the inner wall of the base station (2).
2. The high-stability laser 3D printing platform stabilizing mechanism according to claim 1, wherein an alarm mechanism driven by a rack (8) is arranged inside the base (2), the alarm mechanism comprises a first gear (11) and a second gear (13), and the first gear (11) and the second gear (13) are respectively positioned on two sides of the rack (8) and meshed with the rack (8).
3. The high-stability laser 3D printing platform stabilizing mechanism according to claim 2, wherein a first rotating rod (12) is connected to the middle of the first gear (11) in a threaded mode, a second rotating rod (14) is connected to the middle of the second gear (13) in a threaded mode, the first rotating rod (12) and the second rotating rod (14) are vertically and slidably connected with the inner wall of the base (2), and torsion springs are sleeved on the tops of the first rotating rod (12) and the second rotating rod (14).
4. The high-stability laser 3D printing platform stabilizing mechanism according to claim 3, wherein a limit bar slidingly connected with the inner wall of the base (2) is fixed on the outer sides of the first rotating rod (12) and the second rotating rod (14) and used for limiting the first rotating rod (12) and the second rotating rod (14) to rotate.
5. The high-stability laser 3D printing platform stabilizing mechanism according to claim 4, wherein the bottoms of the first rotating rod (12) and the second rotating rod (14) are both rotationally connected with pistons, two first cavities and two second cavities which are respectively in sliding connection with the pistons are formed in the base (2), and the reminding window (4) is arranged on the outer side of the printing main body (1).
6. The high-stability laser 3D printing platform stabilizing mechanism according to claim 5, wherein the reminding window (4) is provided with a liquid inlet hole, the liquid inlet hole is communicated with the first cavity through a pipeline, and the first cavity is filled with a colored solution.
7. The high-stability laser 3D printing platform stabilizing mechanism according to claim 6, wherein the reminding window (4) is further provided with a liquid outlet hole, a valve (16) is slidably connected in the liquid outlet hole, one end of the valve (16) is connected with the second cavity through a hose, and a medium is filled in the second cavity.
8. The high-stability laser 3D printing platform stabilizing mechanism according to claim 1, wherein the outer side of the pressing ring (6) is provided with a guide groove (19), and a guide block which is in sliding connection with the guide groove (19) is fixed inside the base (2).
9. The high-stability laser 3D printing platform stabilizing mechanism according to claim 8, wherein a plurality of color development layers (17) are fixed on the top of the pressing ring (6), a plurality of marking grooves (18) are formed in the substrate (3) corresponding to the number of the color development layers (17), and the marking grooves (18) are located above the color development layers (17).
10. The high-stability laser 3D printing platform stabilizing mechanism according to claim 9, wherein a limit groove corresponding to the press ring (6) is formed at the bottom of the base plate (3), and the limit groove is communicated with the marking groove (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310263624.1A CN116275134B (en) | 2023-03-17 | 2023-03-17 | High-stability laser 3D printing platform stabilizing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310263624.1A CN116275134B (en) | 2023-03-17 | 2023-03-17 | High-stability laser 3D printing platform stabilizing mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116275134A CN116275134A (en) | 2023-06-23 |
| CN116275134B true CN116275134B (en) | 2024-01-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310263624.1A Active CN116275134B (en) | 2023-03-17 | 2023-03-17 | High-stability laser 3D printing platform stabilizing mechanism |
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| Country | Link |
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| CN (1) | CN116275134B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB178140A (en) * | 1920-10-05 | 1922-04-05 | Jacob Emil Noeggerath | Improvements in or relating to couplings or brakes |
| FR1221998A (en) * | 1958-03-12 | 1960-06-07 | Improvements to plastic coil spring zippers and devices for making such closures | |
| CA657977A (en) * | 1963-02-19 | Walter E. Heilmann | Helical thread sliding clasp fasteners | |
| CN217916805U (en) * | 2022-08-24 | 2022-11-29 | 江苏万疆高科技有限公司 | Stable mounting platform for 3D printer |
-
2023
- 2023-03-17 CN CN202310263624.1A patent/CN116275134B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA657977A (en) * | 1963-02-19 | Walter E. Heilmann | Helical thread sliding clasp fasteners | |
| GB178140A (en) * | 1920-10-05 | 1922-04-05 | Jacob Emil Noeggerath | Improvements in or relating to couplings or brakes |
| FR1221998A (en) * | 1958-03-12 | 1960-06-07 | Improvements to plastic coil spring zippers and devices for making such closures | |
| CN217916805U (en) * | 2022-08-24 | 2022-11-29 | 江苏万疆高科技有限公司 | Stable mounting platform for 3D printer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116275134A (en) | 2023-06-23 |
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