CN218502545U - Front and back surface co-coating device based on steel plate coating - Google Patents
Front and back surface co-coating device based on steel plate coating Download PDFInfo
- Publication number
- CN218502545U CN218502545U CN202221817512.3U CN202221817512U CN218502545U CN 218502545 U CN218502545 U CN 218502545U CN 202221817512 U CN202221817512 U CN 202221817512U CN 218502545 U CN218502545 U CN 218502545U
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- fixedly connected
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- roller
- gear
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- 239000011248 coating agent Substances 0.000 title claims abstract description 91
- 238000000576 coating method Methods 0.000 title claims abstract description 91
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 37
- 239000010959 steel Substances 0.000 title claims abstract description 37
- 239000000463 material Substances 0.000 claims abstract description 21
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 8
- 238000005204 segregation Methods 0.000 claims abstract 2
- 239000003973 paint Substances 0.000 claims description 7
- 238000010030 laminating Methods 0.000 claims description 2
- 239000011247 coating layer Substances 0.000 claims 3
- 238000007790 scraping Methods 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 7
- 230000005540 biological transmission Effects 0.000 description 7
- 238000000926 separation method Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- 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
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Coating Apparatus (AREA)
Abstract
The utility model belongs to the technical field of the steel sheet coating technique and specifically relates to a device is scribbled altogether to positive and negative based on steel sheet coating, the on-line screen storage device comprises a base, the top of base is provided with the mounting panel, is located the front side mounting panel alternate segregation and with base sliding connection, be located the rear side mounting panel and base fixed connection are located the rear side the top fixedly connected with backup pad of mounting panel, the board is placed to the top fixedly connected with of backup pad, the bottom fixedly connected with reinforcing plate of placing the board, and reinforcing plate and backup pad fixed connection, the first motor of top fixedly connected with of placing the board, the terminal fixedly connected with second gear of main shaft of first motor, the inboard rotation of backup pad is connected with the dwang, the utility model discloses well scraping bar guarantees the unanimity of material loading roller outer coating thickness to reliable coating of scribbling the roller, guarantee the reliable coating of follow-up scribbling roller, increase device's practicality.
Description
Technical Field
The utility model relates to a steel sheet coating technical field specifically is a device is scribbled altogether to positive and negative based on steel sheet coating.
Background
The coating is a viscous liquid prepared by using organic solvent or water, adding or not adding pigment and filler, adding corresponding auxiliary agent and preparing with resin, oil or emulsion as main raw materials.
The steel sheet surface need carry out the coating and coat, and then form the coating and protect, go into the material loading roller inboard and cover the material loading roller outside through the discharge opening with coating pump during steel sheet coating, and then coat the paint roller surface with coating through the material loading roller, carry out the steel sheet coating by the paint roller at last, can not coat the steel sheet positive and negative simultaneously in the production process, the paint roller outer coating thickness is inconsistent simultaneously, and then can not be to the even coating paint of material loading roller, the coating roller outer coating thickness is different when the coating consistency is inconsistent simultaneously, need be to paint roller and steel sheet separation when the steel sheet coating is accomplished in addition.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a device is scribbled altogether to positive and negative based on steel sheet coating to can not coat and scribble the inconsistent problem of coating roller exterior coating thickness to the steel sheet positive and negative simultaneously in solving the production process that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
a front and back surface co-coating device based on a steel plate coating comprises a base, wherein the top end of the base is provided with a mounting plate, the mounting plates positioned on the front side are mutually separated and are in sliding connection with the base, the mounting plate positioned on the rear side is fixedly connected with the base, the top end of the mounting plate positioned on the rear side is fixedly connected with a supporting plate, the top end of the supporting plate is fixedly connected with a placing plate, the bottom end of the placing plate is fixedly connected with a reinforcing plate, the reinforcing plate is fixedly connected with the supporting plate, the top end of the placing plate is fixedly connected with a first motor, the tail end of a main shaft of the first motor is fixedly connected with a second gear, the inner side of the supporting plate is rotatably connected with a rotating rod, the outer side of the rotating rod is fixedly connected with a first gear, and the first gear positioned at the left side is meshed with the second gear, the adjacent first gears are meshed with each other, one end of the rotating rod positioned in the middle is fixedly connected with a coating roller, one ends of the rotating rods positioned at the two sides are fixedly connected with feeding rollers, the feeding roller is jointed with the coating roller, the top end of the base is fixedly connected with a connecting plate, the left end of the connecting plate is fixedly connected with a connecting block, the inner sides of the connecting plate and the connecting block are both rotatably connected with a conveying roller, the rear end of the connecting plate positioned at the rear side is fixedly connected with a controller, the top end of the placing plate is fixedly connected with a supporting rod, the inner side of the top end of the supporting rod is spirally connected with a sleeve, the inner side of the top end of the sleeve is spirally connected with a sliding rod, and the sliding rod is connected with the supporting rod in a sliding way, the top end of the sliding rod is fixedly connected with a fixed block, one end of the fixed block is fixedly connected with a scraping rod, the bottom end of the scraping rod is fixedly connected with a clamping block, and the clamping block is connected with a mounting plate located on the front side in a sliding mode.
Preferably, be located the rear side the rear end fixedly connected with second motor of mounting panel, the terminal fixedly connected with hob of main shaft of second motor, the spiral opposite direction of hob left and right sides, the outside of hob is rotated and is connected with the fixed plate, and fixed plate and the mounting panel fixed connection who is located the rear side, the outside screwed connection of hob has the movable plate, the inboard sliding connection of movable plate has resistance pole, and resistance pole and fixed plate fixed connection, the rear end fixedly connected with voltage sensor of base is located leftwards the right-hand member fixedly connected with slip ring of movable plate, and slip ring and resistance pole sliding connection.
Preferably, the inner side of the rear end of the mounting plate, which is located on the front side, is provided with a sliding groove, the clamping block is in sliding connection with the mounting plate through the sliding groove, and the inner side of the top end of the mounting plate, which is located on the rear side, is provided with a placing groove.
Preferably, the applicator roll and the applicator roll have the same cross-sectional diameter.
Preferably, the first gear has a larger diameter than the second gear.
Preferably, the first motor, the second motor and the voltage sensor are all electrically connected with the controller.
Preferably, the telescopic bottom outside is provided with the external screw thread, and the sleeve passes through external screw thread and bracing piece screwed connection, the outside of slide bar is provided with the external screw thread, and the slide bar passes through external screw thread and sleeve screwed connection, the top inboard of bracing piece is provided with the spout, and the slide bar passes through spout and bracing piece sliding connection.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses in, material loading roller through setting up, the coating roller, first motor, first gear, the second gear, the dwang, the mounting panel, the sleeve, slide bar and bracing piece, can guarantee the positive and negative simultaneous coating of steel sheet, guarantee the thickness of the different consistency coating material loading of convenient adjustment simultaneously, thickness inconsistency or coating drippage are extravagant when avoiding coating material loading, the meshing transmission of second gear and first gear and the meshing transmission of adjacent first gear guarantee that first motor drives material loading roller and coating roller and stabilize the rotation, thereby guarantee the reliable material loading of material loading roller to the coating roller, the reliable coating of steel sheet positive and negative of coating roller to the conveying is simultaneously scribbled to the pole, scrape the unanimity of the outer coating thickness of material loading roller is guaranteed to the pole, thereby to the reliable coating of coating roller, guarantee the reliable coating of follow-up coating roller, increase the practicality of device.
2. The utility model discloses in, slip ring, voltage sensor, the movable plate, the fixed plate, hob and resistance bar through setting up, can guarantee the reliable separation of steel sheet coating completion back coating roller and steel sheet, the resistance voltage of resistance bar and feedback to the controller when voltage sensor real-time supervision loading roller and coating roller remove, and then the controller in time stops the second motor and rotates when feedback voltage reaches the predetermined value, guarantee that the second motor is just reversing to drive coating roller and the reliable separation of steel sheet or laminating, increase the practicality of device.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the structure at A of FIG. 1 according to the present invention;
FIG. 3 is a schematic view of the structure of the utility model at B in FIG. 1;
FIG. 4 is a schematic view of the structure of FIG. 1 at C according to the present invention;
fig. 5 is a schematic view of the structure at D of fig. 1 according to the present invention;
fig. 6 is a schematic structural view of the middle fixture block of the present invention.
In the figure: 1-base, 2-fixing plate, 3-first gear, 4-mounting plate, 5-second gear, 6-first motor, 7-scraping rod, 8-coating roller, 9-feeding roller, 10-connecting block, 11-connecting plate, 12-conveying roller, 13-controller, 14-second motor, 15-fixing block, 16-sliding rod, 17-sleeve, 18-supporting rod, 19-clamping block, 20-moving plate, 21-spiral rod, 22-voltage sensor, 23-sliding ring, 24-resistance rod, 25-rotating rod, 26-supporting plate, 27-reinforcing plate and 28-placing plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.
Referring to fig. 1-6, the present invention provides a technical solution:
a front and back surface co-coating device based on a steel plate coating comprises a base 1, wherein the top end of the base 1 is provided with a mounting plate 4, the mounting plate 4 positioned on the front side is mutually separated and is connected with the base 1 in a sliding way, the mounting plate 4 positioned on the rear side is fixedly connected with the base 1, the top end of the mounting plate 4 positioned on the rear side is fixedly connected with a supporting plate 26, the top end of the supporting plate 26 is fixedly connected with a placing plate 28, the bottom end of the placing plate 28 is fixedly connected with a reinforcing plate 27, the reinforcing plate 27 is fixedly connected with the supporting plate 26, the top end of the placing plate 28 is fixedly connected with the first motor 6, the tail end of the main shaft of the first motor 6 is fixedly connected with the second gear 5, the inner side of the supporting plate 26 is rotatably connected with the rotating rod 25, the outer side of the rotating rod 25 is fixedly connected with the first gear 3, and the first gear 3 positioned at the left side is meshed with the second gear 5, the adjacent first gears 3 are meshed with each other, one end of the rotating rod 25 positioned at the middle is fixedly connected with the coating roller 8, one ends of the rotating rods 25 positioned at the two sides are fixedly connected with the feeding roller 9, and the feeding roller 9 is jointed with the coating roller 8, the top end of the base 1 is fixedly connected with a connecting plate 11, the left end of the connecting plate 11 is fixedly connected with a connecting block 10, the inner sides of the connecting plate 11 and the connecting block 10 are both rotatably connected with a conveying roller 12, the rear end of the connecting plate 11 positioned at the rear side is fixedly connected with a controller 13, the top end of the placing plate 28 is fixedly connected with a supporting rod 18, the inner side of the top end of the supporting rod 18 is spirally connected with a sleeve 17, the inner side of the top end of the sleeve 17 is spirally connected with a sliding rod 16, and the sliding rod 16 is connected with the supporting rod 18 in a sliding manner, the top end of the sliding rod 16 is fixedly connected with the fixing block 15, one end of the fixing block 15 is fixedly connected with the scraping rod 7, the bottom end of the scraping rod 7 is fixedly connected with the clamping block 19, and the clamping block 19 is connected with the mounting plate 4 positioned on the front side in a sliding manner.
The rear end of the mounting plate 4 positioned at the rear side is fixedly connected with a second motor 14, the tail end of a main shaft of the second motor 14 is fixedly connected with a spiral rod 21, the spiral directions of the left side and the right side of the spiral rod 21 are opposite, the outer side of the spiral rod 21 is rotatably connected with a fixed plate 2, the fixed plate 2 is fixedly connected with the mounting plate 4 positioned at the rear side, the outer side of the spiral rod 21 is spirally connected with a movable plate 20, the inner side of the movable plate 20 is slidably connected with a resistance rod 24, the resistance rod 24 is fixedly connected with the fixed plate 2, the rear end of the base 1 is fixedly connected with a voltage sensor 22, the right end of the movable plate 20 positioned at the left side is fixedly connected with a sliding ring 23, and the sliding ring 23 is slidably connected with the resistance rod 24, so that the coating roller 8 and a steel plate are reliably separated and attached in the using process; a sliding groove is formed in the inner side of the rear end of the mounting plate 4 positioned on the front side, the clamping block 19 is connected with the mounting plate 4 in a sliding mode through the sliding groove, a placing groove is formed in the inner side of the top end of the mounting plate 4 positioned on the rear side, and the convenient adjustment of the height of the scraping rod 7 and the reliable placement of the first motor 6 are guaranteed in the using process; the cross sections of the coating roller 8 and the feeding roller 9 are the same in diameter, so that interference between the adjacent first gears 3 and reliable meshing can be avoided in the using process; the diameter of the first gear 3 is larger than that of the second gear 5, so that the phenomenon that the feeding roller 9 cannot reliably feed materials to the coating roller 8 due to too high rotating speed is avoided in the using process; the first motor 6, the second motor 14 and the voltage sensor 22 are electrically connected with the controller 13, so that the automatic control of the device is ensured in the using process; the bottom outside of sleeve 17 is provided with the external screw thread, and sleeve 17 passes through external screw thread and 18 threaded connection of bracing piece, the outside of slide bar 16 is provided with the external screw thread, and slide bar 16 passes through external screw thread and sleeve 17 threaded connection, the top inboard of bracing piece 18 is provided with the spout, and slide bar 16 passes through spout and 18 sliding connection of bracing piece, guarantee the convenient adjustment of scraping the pole 7 height in the use, guarantee that the external coating thickness of material loading roller 9 is unanimous, thereby to the reliable material loading of coating roller 8, guarantee that coating roller 8 is subsequent reliably paintd.
The working process comprises the following steps: the utility model can ensure the coating on the front and back sides of the steel plate simultaneously by supplying power through the external power supply before using, and simultaneously ensure the thickness of the coating material with different consistencies to be conveniently adjusted, thereby avoiding the waste of coating material dropping or the inconsistent thickness when coating material is loaded, when the coating material is needed to be coated on the front and back sides of the steel plate, the controller 13 is used for starting the first motor 6 to drive the second gear 5 to rotate anticlockwise, under the matching of the meshing transmission of the second gear 5 and the first gear 3, the first motor 6 on the left side drives the first gear 3 and the loading roller 9 to rotate clockwise through the second gear 5, under the matching of the meshing transmission of the adjacent first gears 3, the first motor 6 on the left side drives the coating roller 8 to rotate anticlockwise, and under the matching of the meshing transmission of the second gear 5 and the first gear 3, the first right-side motor 6 drives the first gear 3 and the coating roller 8 to rotate clockwise through the second gear 5, under the matching of the mutual meshing transmission of the adjacent first gears 3, the first right-side motor 6 drives the feeding roller 9 to rotate anticlockwise, so that the coating rollers 8 on the left and right sides reliably paint the front and back surfaces of the steel plate which is fed upwards through the transmission roller 12, meanwhile, the feeding roller 9 is attached to the coating roller 8 for coating feeding, when the position of the coating scraping rod 7 is required to be adjusted according to the coating viscosity, the sleeve 17 is screwed out of the support rod 18 under the matching of the sleeve 17, the sliding rod 16 and the support rod 18, the length of the support rod 18 exposed by the sliding rod 16 is adjusted under the matching of the sliding connection of the support rod 18 and the sliding rod 16 and the sliding connection of the fixture block 19 and the front mounting plate 4, further, the distance between the scraping rod 7 and the coating roller 9 is adjusted, the thickness of the coating outside the coating roller 9 is adjusted, and the reliable painting of the coating rollers 8 by the coating with different viscosities outside the coating roller 9 is ensured, in addition, reliable separation of the coating roller 8 and the steel plate after coating on the steel plate can be ensured, the controller 13 starts the second motor 14 to drive the spiral rod 21 to rotate, the moving plate 20 stably moves towards two sides along with the rotation of the spiral rod 21 under the matching of the sliding connection of the resistance rod 24 and the moving plate 20, meanwhile, the sliding ring 23 is attached to different positions of the resistance rod 24, the length of the resistance rod 24 connected into a circuit is changed in real time, the voltage of the resistance rod 24 connected into the circuit is ensured to be changed in real time, the voltage sensor 22 monitors the voltage of the resistance rod 24 connected into the circuit in real time and feeds the voltage back to the controller 13, if a preset voltage value is reached, the controller 13 stops the rotation of the second motor 14, so that the moving plate 20 and the steel plate are ensured to be reliably separated, the coating is coated on the steel plate again in the same way, the controller 13 starts the second motor 14 to rotate in the reverse direction, further, the coating roller 8 is driven to move towards the middle along with the rotation of the spiral rod 21, and when the feedback pressure value received by the controller 13 reaches the preset pressure value, the controller 13 stops the rotation of the second motor 14, so that the coating roller 8 and the steel plate is ensured to be reliably attached.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a device is scribbled altogether to positive and negative based on steel sheet coating, includes base (1), its characterized in that: the top of base (1) is provided with mounting panel (4), is located the front side mounting panel (4) alternate segregation and with base (1) sliding connection, be located the rear side mounting panel (4) and base (1) fixed connection, be located the rear side the top fixedly connected with backup pad (26) of mounting panel (4), board (28) is placed to the top fixedly connected with of backup pad (26), the bottom fixedly connected with reinforcing plate (27) of placing board (28), and reinforcing plate (27) and backup pad (26) fixed connection, the top fixedly connected with first motor (6) of placing board (28), the terminal fixedly connected with second gear (5) of main shaft of first motor (6), the inboard rotation of backup pad (26) is connected with dwang (25), the outside fixedly connected with first gear (3) of dwang (25), and be located left first dwang gear (3) and second gear (5) meshing, adjacent first gear (3) intermeshing, be located the centre the one end fixedly connected with dwang (25) of dwang (8), and be located the one end fixedly connected with material roller (9) of left paint roller (9) and the material roller (9) laminating connection board (9), the utility model discloses a scraper roller, including connecting plate (11), connecting plate (11) and connecting block (10), the inboard of connecting plate (11) and connecting block (10) is all rotated and is connected with transfer roller (12), is located the rear side the rear end fixedly connected with controller (13) of connecting plate (11), place top fixedly connected with bracing piece (18) of board (28), the inboard threaded connection in top of bracing piece (18) has sleeve (17), the inboard threaded connection in top of sleeve (17) has slide bar (16), and slide bar (16) and bracing piece (18) sliding connection, the top fixedly connected with fixed block (15) of slide bar (16), pole (7) are scraped to the one end fixedly connected with of fixed block (15), scrape bottom fixedly connected with fixture block (19) of pole (7), and fixture block (19) and mounting panel (4) sliding connection who is located the front side.
2. A device for coating both sides of a steel sheet according to claim 1, wherein: be located the rear side the rear end fixedly connected with second motor (14) of mounting panel (4), the terminal fixedly connected with hob (21) of main shaft of second motor (14), the spiral opposite direction of hob (21) left and right sides, the outside of hob (21) is rotated and is connected with fixed plate (2), and fixed plate (2) and mounting panel (4) fixed connection who is located the rear side, the outside screwed connection of hob (21) has movable plate (20), the inboard sliding connection of movable plate (20) has resistance pole (24), and resistance pole (24) and fixed plate (2) fixed connection, the rear end fixedly connected with voltage sensor (22) of base (1) is located left the right-hand member fixedly connected with slip ring (23) of movable plate (20), and slip ring (23) and resistance pole (24) sliding connection.
3. The front and back side co-coating device based on the steel plate coating layer as claimed in claim 1, is characterized in that: the inner side of the rear end of the mounting plate (4) positioned on the front side is provided with a sliding groove, the clamping block (19) is in sliding connection with the mounting plate (4) through the sliding groove, and the inner side of the top end of the mounting plate (4) positioned on the rear side is provided with a placing groove.
4. A device for coating both sides of a steel sheet according to claim 1, wherein: the cross section diameters of the coating roller (8) and the feeding roller (9) are the same.
5. The front and back side co-coating device based on the steel plate coating layer as claimed in claim 1, is characterized in that: the diameter of the first gear (3) is larger than that of the second gear (5).
6. A device for coating both sides of a steel sheet according to claim 2, wherein: the first motor (6), the second motor (14) and the voltage sensor (22) are all electrically connected with the controller (13).
7. The front and back side co-coating device based on the steel plate coating layer as claimed in claim 1, is characterized in that: the utility model discloses a support bar, including support bar (18), slide bar (16), the bottom outside of sleeve (17) is provided with the external screw thread, and sleeve (17) is through external screw thread and bracing piece (18) threaded connection, the outside of slide bar (16) is provided with the external screw thread, and slide bar (16) is through external screw thread and sleeve (17) threaded connection, the top inboard of bracing piece (18) is provided with the spout, and slide bar (16) is through spout and bracing piece (18) sliding connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221817512.3U CN218502545U (en) | 2022-07-15 | 2022-07-15 | Front and back surface co-coating device based on steel plate coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221817512.3U CN218502545U (en) | 2022-07-15 | 2022-07-15 | Front and back surface co-coating device based on steel plate coating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218502545U true CN218502545U (en) | 2023-02-21 |
Family
ID=85207728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221817512.3U Expired - Fee Related CN218502545U (en) | 2022-07-15 | 2022-07-15 | Front and back surface co-coating device based on steel plate coating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218502545U (en) |
-
2022
- 2022-07-15 CN CN202221817512.3U patent/CN218502545U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20230221 |