CN212708473U - Laminated plate positioning device for hot-pressing line of fireproof plate - Google Patents
Laminated plate positioning device for hot-pressing line of fireproof plate Download PDFInfo
- Publication number
- CN212708473U CN212708473U CN202021470042.9U CN202021470042U CN212708473U CN 212708473 U CN212708473 U CN 212708473U CN 202021470042 U CN202021470042 U CN 202021470042U CN 212708473 U CN212708473 U CN 212708473U
- Authority
- CN
- China
- Prior art keywords
- conveyer belt
- conveying belt
- dish
- carry
- belt
- Prior art date
- 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.)
- Expired - Fee Related
Links
- 238000007731 hot pressing Methods 0.000 title claims abstract description 26
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 50
- 239000010959 steel Substances 0.000 claims abstract description 50
- 239000000463 material Substances 0.000 claims abstract description 24
- 239000004033 plastic Substances 0.000 claims abstract description 15
- 241000252254 Catostomidae Species 0.000 claims description 9
- 239000000428 dust Substances 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 claims description 7
- 238000007599 discharging Methods 0.000 claims description 6
- 230000003068 static effect Effects 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000008187 granular material Substances 0.000 description 3
- 238000005253 cladding Methods 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
- 239000002983 wood substitute Substances 0.000 description 1
Images
Landscapes
- Specific Conveyance Elements (AREA)
Abstract
The utility model discloses a folded plate positioner of PLASTIC LAMINATED hot pressing line, conveyor are including the material loading conveyer belt, circulation conveyer belt, unloading conveyer belt that connect gradually and carry a set conveyer belt, the material loading conveyer belt with be equipped with the manipulator between the unloading conveyer belt, positioner is including locating carry the dull and stereotyped lamp of a set conveyer belt and locate carry the industry camera of a set conveyer belt top, the camera lens of industry camera with dull and stereotyped lamp is just to setting up. The utility model discloses an optical shooting location, carry the dish carry extremely during carrying the dish conveyer belt, through CCD shoots the accurate acquisition and carries the position coordinate of this angle of dish, and the steel mould on the manipulator transport unloading conveyer belt passes through equally the coordinate that acquires the steel mould is shot to the industry camera, through the calculation of software, and the manipulator can be accurate place the steel mould on the material loading conveyer belt to realize the folded plate work before the hot pressing, convenient accuracy need not other structure cooperations, also can practice thrift the cost.
Description
Technical Field
The utility model belongs to the technical field of the PLASTIC LAMINATED processing, especially, relate to a folded plate positioner of PLASTIC LAMINATED hot pressing line.
Background
The fireproof plate is also called a fireproof plate, is called High-pressure Laminate (HPL) in English, is known as a thermosetting resin impregnated paper High-pressure laminated plate bai, is a fireproof building material for surface decoration, and has rich surface color, lines and special physical properties.
The material is revolutionary, is different from the traditional composite board and other materials, has plasticity and insulating property, and has wider application range; corrosion resistance, and longer service life; the novel material obtains great success due to the dual advantages of attractiveness and functionality, and the HPL is used as a decoration material, is a very good wood substitute, and has very good advantages in durability and manufacturing cost compared with wood. The method has the advantages of durability, low cost and the like when used for manufacturing musical instruments.
The surface line of PLASTIC LAMINATED forms through the hot pressing, steel sheet (steel mould) that the surface laminating of cardboard has the decorative pattern during the manufacturing, then use hot briquetting equipment hot briquetting, consequently, get into the PLASTIC LAMINATED of hot briquetting equipment, its below is year dish, the top is the steel mould, the range upon range of setting of three, in actual processing line, because year dish (the frock that loads PLASTIC LAMINATED and steel mould circulation) and steel mould are the endless used repeatedly all the time, must carry (transport) steel mould and year dish at unloading station department again to the material loading station like this, and the location after carrying at every turn, prior art all adopts fixed transport distance or sets up simple mountain-leaning on these modes to accomplish on the conveyer belt, positioning accuracy is low and the reliability is not good.
SUMMERY OF THE UTILITY MODEL
The utility model provides a technical problem of main solution provides a folded plate positioner of PLASTIC LAMINATED hot pressing line adopts the optical shooting location, carries the dish to carry extremely when carrying a set conveyer belt, its one of them angle part covers dull and stereotyped lamp, rethread CCD shoots, and the position coordinate of this angle of dish is carried in the acquisition that can be accurate, and during the steel mould on the manipulator transport unloading conveyer belt, passes through equally the coordinate of an angle of steel mould is obtained in the shooting of industry camera, through the calculation of software, the manipulator can be accurate place the steel mould on the material loading conveyer belt (carry the dish) to realize the folded plate work before the hot pressing, convenient accuracy need not other structure cooperations, also can practice thrift the cost.
In order to solve the technical problem, the utility model discloses a technical scheme of adoption as follows:
a laminated plate positioning device of fireproof plate hot pressing lines comprises a conveying device and hot pressing equipment, wherein a loading disc loaded with fireproof plates and steel dies is transmitted to the hot pressing equipment through the conveying device to be embossed;
still be equipped with positioner, positioner is including locating carry the dull and stereotyped lamp of dish conveyer belt and locate carry the industry camera of dish conveyer belt top, dull and stereotyped lamp is located carry the corner position of dish conveyer belt, so that carry the dish or steel mould transmit one of them corner can partially cover when carrying the dish conveyer belt dull and stereotyped lamp, the camera lens of industry camera with dull and stereotyped lamp is just to setting up.
Further, the circulation conveyer belt is the one-way conveyer belt of transmission along X axle direction, the material loading conveyer belt with the unloading conveyer belt all is the two-way conveyer belt that can follow two directions of X axle and Y axle transmission, the manipulator is equipped with and is used for the transport the sucking disc device of steel mould.
Further, the sucker device comprises a plurality of vacuum suckers, and when the vacuum suckers are in a negative pressure state, the vacuum suckers suck the steel die; and when the vacuum chuck blows air outwards, the vacuum chuck blows dust on the surface of the steel die.
Furthermore, the conveying device of the hot pressing line is integrally arranged in a rectangular structure, and the feeding conveying belt and the blanking conveying belt are respectively positioned at two adjacent corners of the rectangle.
Furthermore, the carrying tray conveyer belt is positioned between the feeding conveyer belt and the discharging conveyer belt, and the manipulator is positioned on one side of the carrying tray conveyer belt.
Furthermore, the edge of the carrier disc conveying belt is provided with an ion wind rod for removing static electricity for the carrier disc.
Furthermore, the edge of the carrying disc conveying belt is provided with a brush, and the brush protrudes out of the surface of the carrying disc conveying belt and is arranged upwards.
The utility model has the advantages that:
the utility model discloses a positioner adopts the optical shooting location, carries the dish to carry during year dish conveyer belt, its one of which angle part covers dull and stereotyped lamp, and the part that does not cover has obvious light and shade contrast with it, the rethread CCD shoots, and the position coordinate of this angle of dish is carried in the acquisition that can be accurate, and when the steel mould on the manipulator transport unloading conveyer belt, its transport route is the same edge carry the direction of delivery of dish conveyer belt, consequently when the steel mould is located the top of carrying the dish conveyer belt, pass through equally the coordinate of a angle of steel mould is obtained in the shooting of industry camera, the calculation of rethread software, and the manipulator can be accurate this moment places the steel mould on the material loading conveyer belt to realize the work of folding plate before the hot pressing, acquire the coordinate location through the camera, convenient accurate, need not other structure cooperations, also can practice thrift the cost.
The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings.
Drawings
Fig. 1 is a top plan view of the conveying device of the present invention;
fig. 2 is a schematic structural view of the manipulator and the positioning device of the present invention;
FIG. 3 is a front view of the manipulator and positioning device of the present invention;
fig. 4 is a top view of the feeding conveyor belt of the present invention;
fig. 5 is a front view of the feeding conveyor belt of the present invention;
fig. 6 is a schematic structural view (plan view) of the conveying roller of the present invention;
fig. 7 is a schematic structural view (front view) of the crane of the present invention;
the parts in the drawings are marked as follows:
the device comprises a carrying disc 1, a steel die 2, a circulating conveying belt 401, a feeding conveying belt 402, a conveying rack 4021, a conveying roller 4022, a roller shaft 40221, a roller 40222, a support 40223, a conveying belt 4023, a lifting frame 4024, a frame body 40241, a linkage shaft 40242, a driving motor 40243, an air cylinder 4025, a feeding conveying belt 403, a mechanical arm 404, a suction cup device 4041, a carrying disc conveying belt 405, a hot-pressing device 406, a flat lamp 501, an industrial camera 502 and a support 503.
Detailed Description
The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.
Example (b):
the utility model provides a folded plate positioner of PLASTIC LAMINATED hot pressing line, wherein the PLASTIC LAMINATED hot pressing line is the processing line of the various impressed watermark of surface extrusion of PLASTIC LAMINATED (cardboard), and the cardboard is placed in carrying dish 1, then the steel mould 2 that has the decorative pattern is stacked on the cardboard, then sends into the autoclave through the transfer chain and carries out the impressed watermark, and the rethread transfer chain is carried out after having pressed.
As shown in fig. 1 to 3: the transfer chain includes circulation conveyer belt 401, material loading conveyer belt 402, unloading conveyer belt 403 and manipulator 404, material loading conveyer belt, circulation conveyer belt and unloading conveyer belt connect gradually according to work flow, the material loading conveyer belt with still be equipped with between the unloading conveyer belt and carry a set conveyer belt 405.
A carry a set for loading PLASTIC LAMINATED in the transfer chain circulation, the manipulator is located the material loading conveyer belt with between the unloading conveyer belt, just the manipulator can with steel mould on the unloading conveyer belt is carried extremely material loading conveyer belt (is carried the dish), the dish of carrying on the unloading conveyer belt passes through carry a set conveyer belt and carry back material loading conveyer belt, hot pressing equipment 406 is located in the stroke of circulation conveyer belt.
The circulating conveyer belt is a one-way conveyer belt which is transmitted along the X-axis direction, the feeding conveyer belt and the discharging conveyer belt are both two-way conveyer belts which can be transmitted along the X-axis direction and the Y-axis direction, and the manipulator is provided with a sucker device 4041 for carrying;
the edge of carrying the dish conveyer belt is equipped with ion wind stick and the brush that is used for getting rid of static, the brush protrusion with carry the surface of dish conveyer belt and set up, the air outlet of ion wind stick sets up.
The steel mould can pass through the brush with carrying when the dish is carried, can get rid of the dust granule of steel mould lower surface and pass through the ion wind stick can with static on the dish is got rid of to this can prevent to carry the dish and adsorb the dust, influences the surface quality of PLASTIC LAMINATED.
The positioning device is shown in fig. 1 and 2: the positioning device comprises a panel lamp 501 arranged on the carrying disc conveying belt and an industrial camera 502 arranged above the carrying disc conveying belt, the panel lamp is positioned at the corner position of the carrying disc conveying belt, so that one corner of the carrying disc or the steel die can partially cover the panel lamp when being transmitted to the carrying disc conveying belt, and a lens of the industrial camera is opposite to the panel lamp.
The industrial camera is mounted on the bracket 503, or may be mounted directly on the roof of the plant.
The utility model discloses a positioner adopts the optical shooting location, carries the dish to carry during year dish conveyer belt, its one of which angle part covers dull and stereotyped lamp, and the part that does not cover has obvious light and shade contrast with it, the rethread CCD shoots, and the position coordinate of this angle of dish is carried in the acquisition that can be accurate, and when the steel mould on the manipulator transport unloading conveyer belt, its transport route is the same edge carry the direction of delivery of dish conveyer belt, consequently when the steel mould is located the top of carrying the dish conveyer belt, pass through equally the coordinate of a angle of steel mould is obtained in the shooting of industry camera, the calculation of rethread software, and the manipulator can be accurate this moment places the steel mould on the material loading conveyer belt to realize the work of folding plate before the hot pressing, acquire the coordinate location through the camera, convenient accurate, need not other structure cooperations, also can practice thrift the cost.
The circulation conveyer belt is the one-way conveyer belt of transmission along X axle direction, the material loading conveyer belt with the unloading conveyer belt all is the two-way conveyer belt that can follow two directions of X axle and Y axle transmission, the manipulator is equipped with and is used for the transport the sucking disc device of steel mould.
The sucker device comprises a plurality of vacuum suckers, and when the vacuum suckers are in a negative pressure state, the vacuum suckers suck the steel die; and when the vacuum chuck blows air outwards, the vacuum chuck blows dust on the surface of the steel die. The effect of vacuum chuck interval snatch the steel mould and blow off the dust, and the dust of getting rid of the steel mould surface can eliminate the quality influence of dust granule to putting the fire plate surface, kills two birds with one stone.
As shown in fig. 1: the conveying device of the hot pressing line is integrally arranged in a rectangular structure, and the feeding conveying belt and the discharging conveying belt are respectively positioned at two adjacent corners of the rectangle.
The loading tray conveyer belt is positioned between the feeding conveyer belt and the discharging conveyer belt, and the manipulator is positioned on one side of the loading tray conveyer belt. Under this position overall arrangement, the manipulator can be for two at least production line work simultaneously, raises the efficiency, reduce cost.
As shown in fig. 4 and 5: the bidirectional conveying belt comprises a conveying rack 4021, conveying rollers 4022 conveyed along the X-axis direction and a conveying belt 4023 conveyed along the Y-axis direction, the conveying belt is connected to a lifting frame 4024, a driving piece for driving the lifting frame to reciprocate along the Z-axis direction is arranged on the lifting frame, the lifting frame is located at a high position, the conveying belt is used for driving the carrying disc to move along the Y-axis, and the conveying rollers are used for driving the carrying disc to move along the X-axis when the lifting frame is located at a low position.
The utility model discloses conveyor's working process does: at the material loading conveyer belt material loading and by manipulator folded sheet (steel mould), then deliver to the hot pressing equipment impressed watermark through the circulation conveyer belt, transport out to the unloading conveyer belt through the transfer chain after having pressed, the rethread manipulator removes the steel mould from to carry the impressed watermark that carries out the PLASTIC LAMINATED once more to material loading conveyer belt again, automatic transport circulation, it is efficient.
The utility model discloses a conveyor carries the steel mould and carries the dish through the manipulator, and the transport speed is fast and positioning accuracy is high, and a manipulator can cooperate 2 at least functions of producing the line moreover, the control that the cost also can be fine when production quality promotes.
As shown in fig. 6: the conveying roller includes roller 40221 and fixed connection in a plurality of running roller 40222 of roller, the running roller with the roller is coaxial to be set up, the both ends of roller pass through support 40223 rotate connect in the frame, the periphery cladding of running roller has antistatic rubber, and the running roller that the cladding had antistatic rubber can reduce the static that produces on year dish and the steel mould to prevent that static adsorbs the dust granule and cause the influence to the product.
As shown in fig. 7: the crane includes support body 40241, be equipped with 4 groups on the support body conveyor 4023, 4 groups conveyor passes through universal driving shaft 40242 transmission, driving motor 40243 is connected to the universal driving shaft. The crane is driven by a cylinder 4025.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or position relationship described based on the embodiments and shown in the drawings, or the orientation or position relationship that the products of the present invention are usually placed when using, which is only for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
The working principle of the utility model is as follows:
the utility model discloses a positioner adopts the optical shooting location, carries the dish to carry during year dish conveyer belt, its one of which angle part covers dull and stereotyped lamp, and the part that does not cover has obvious light and shade contrast with it, the rethread CCD shoots, and the position coordinate of this angle of dish is carried in the acquisition that can be accurate, and when the steel mould on the manipulator transport unloading conveyer belt, its transport route is the same edge carry the direction of delivery of dish conveyer belt, consequently when the steel mould is located the top of carrying the dish conveyer belt, pass through equally the coordinate of a angle of steel mould is obtained in the shooting of industry camera, the calculation of rethread software, and the manipulator can be accurate this moment places the steel mould on the material loading conveyer belt to realize the work of folding plate before the hot pressing, acquire the coordinate location through the camera, convenient accurate, need not other structure cooperations, also can practice thrift the cost.
The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the same principle as the present invention.
Claims (7)
1. The utility model provides a folded plate positioner of PLASTIC LAMINATED hot pressing line, hot pressing line include conveyor and hot pressing equipment, and the dish of carrying of loading with PLASTIC LAMINATED and steel mould passes through conveyor transmits extremely hot pressing equipment carries out the impressed watermark, its characterized in that: the conveying device comprises a feeding conveying belt (402), a circulating conveying belt (401), a blanking conveying belt (403) and a tray conveying belt (405) which are sequentially connected, a manipulator (404) is arranged between the feeding conveying belt and the blanking conveying belt, the manipulator can convey steel dies on the blanking conveying belt to the feeding conveying belt, and trays on the blanking conveying belt are conveyed back to the feeding conveying belt through the tray conveying belt;
still be equipped with positioner, positioner is including locating carry the dull and stereotyped lamp (501) of dish conveyer belt and locate carry industrial camera (502) of dish conveyer belt top, dull and stereotyped lamp is located carry the corner position of dish conveyer belt, so that carry the dish or one of them angle can partially cover when the steel mould transmits to carry the dish conveyer belt dull and stereotyped lamp, the camera lens of industrial camera with dull and stereotyped lamp is just to setting up.
2. The apparatus of claim 1, wherein the apparatus further comprises: the circulation conveyer belt is the one-way conveyer belt of transmission along X axle direction, the material loading conveyer belt with the unloading conveyer belt all is the two-way conveyer belt that can follow two directions of X axle and Y axle transmission, the manipulator is equipped with and is used for the transport the sucking disc device of steel mould.
3. The apparatus of claim 2, wherein: the sucker device comprises a plurality of vacuum suckers, and when the vacuum suckers are in a negative pressure state, the vacuum suckers suck the steel die; and when the vacuum chuck blows air outwards, the vacuum chuck blows dust on the surface of the steel die.
4. The apparatus of claim 1, wherein the apparatus further comprises: the conveying device of the hot pressing line is integrally arranged in a rectangular structure, and the feeding conveying belt and the discharging conveying belt are respectively positioned at two adjacent corners of the rectangle.
5. The apparatus of claim 4, wherein: the loading tray conveyer belt is positioned between the feeding conveyer belt and the discharging conveyer belt, and the manipulator is positioned on one side of the loading tray conveyer belt.
6. The apparatus of claim 1, wherein the apparatus further comprises: and the edge of the carrying disc conveying belt is provided with an ion wind rod for removing static electricity for the carrying disc.
7. The apparatus of claim 1, wherein the apparatus further comprises: the edge of the carrying disc conveying belt is provided with a hairbrush, and the hairbrush protrudes out of the surface of the carrying disc conveying belt and is arranged upwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021470042.9U CN212708473U (en) | 2020-07-23 | 2020-07-23 | Laminated plate positioning device for hot-pressing line of fireproof plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021470042.9U CN212708473U (en) | 2020-07-23 | 2020-07-23 | Laminated plate positioning device for hot-pressing line of fireproof plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212708473U true CN212708473U (en) | 2021-03-16 |
Family
ID=74908378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021470042.9U Expired - Fee Related CN212708473U (en) | 2020-07-23 | 2020-07-23 | Laminated plate positioning device for hot-pressing line of fireproof plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212708473U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115352884A (en) * | 2022-09-05 | 2022-11-18 | 深圳创维－Rgb电子有限公司 | Automatic material taking and connecting mechanism |
-
2020
- 2020-07-23 CN CN202021470042.9U patent/CN212708473U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115352884A (en) * | 2022-09-05 | 2022-11-18 | 深圳创维－Rgb电子有限公司 | Automatic material taking and connecting mechanism |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110315603B (en) | Double-sided synchronous pattern-alignment embossing veneer production line | |
| CN111137679B (en) | Automatic film pasting and QR code device | |
| CN110614837B (en) | Plate pressing device and plate production line | |
| CN110315604B (en) | Full-automatic veneer double-sided synchronous pattern alignment embossing device and control method thereof | |
| CN102989864A (en) | Automatic production system of gooseneck groove of container | |
| CN102642729A (en) | Plate splitting conveying device | |
| CN208133774U (en) | The full-automatic mounting line of multilayer dose | |
| CN212708473U (en) | Laminated plate positioning device for hot-pressing line of fireproof plate | |
| CN209774804U (en) | Transmission mechanism for pre-alignment structure of punching machine | |
| CN114953150B (en) | Full-automatic tile pressing machine and tile manufacturing production line | |
| CN212639042U (en) | Hot-pressing line conveying device for fireproof plate | |
| CN212422168U (en) | Fireproof plate embossing processing line | |
| CN211415506U (en) | Double-sided synchronous registration embossing veneer production line | |
| CN108820418B (en) | Full-automatic adhesive tape punching and sticking machine with manipulator | |
| CN221046672U (en) | Automatic detecting equipment for size of middle frame of mobile phone | |
| CN112660907A (en) | Spread paper device of getting paper when glass is lower | |
| CN207890589U (en) | A VCM motor shrapnel ear folding device | |
| CN214732717U (en) | Color crystal plate collecting and packaging machine | |
| CN219076601U (en) | Air spring forming machine | |
| CN108190513A (en) | Full automatic array make-up machine | |
| CN216545275U (en) | Multicolor pad printing automation device | |
| CN209897378U (en) | Circuit board inlayer piercing press is counterpoint structure in advance | |
| CN204339900U (en) | Ornament materials cutting system | |
| CN111716695B (en) | Fireproof plate embossing line | |
| CN203993066U (en) | A kind of Full-automatic screw locking machine |
Legal Events
| 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: 20210316 |