CN220579681U - Coating quantity adjustable roller type coating equipment - Google Patents

Coating quantity adjustable roller type coating equipment Download PDF

Info

Publication number
CN220579681U
CN220579681U CN202321011218.8U CN202321011218U CN220579681U CN 220579681 U CN220579681 U CN 220579681U CN 202321011218 U CN202321011218 U CN 202321011218U CN 220579681 U CN220579681 U CN 220579681U
Authority
CN
China
Prior art keywords
coating
subassembly
box
component
roller
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.)
Active
Application number
CN202321011218.8U
Other languages
Chinese (zh)
Inventor
叶旭峰
林土珍
叶建明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Jiancai Paper Technology Co ltd
Original Assignee
Guangdong Jiancai Paper Technology Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Guangdong Jiancai Paper Technology Co ltd filed Critical Guangdong Jiancai Paper Technology Co ltd
Priority to CN202321011218.8U priority Critical patent/CN220579681U/en
Application granted granted Critical
Publication of CN220579681U publication Critical patent/CN220579681U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model discloses roll-type coating equipment with an adjustable coating amount, and particularly relates to the technical field of thermal paper coating equipment. The utility model can paint the double sides of the thermosensitive paper, realizes the adjustment and use of the coating amount of the thermosensitive paper, can continuously realize the coating operation when the coating roller is used, avoids the problem of poor coating quality caused by uneven coating on the coating roller, also avoids the problem of poor coating effect caused by virtual contact between the thermosensitive paper and the coating roller, and can carry out the strickling treatment on the coating.

Description

Coating quantity adjustable roller type coating equipment
Technical Field
The utility model relates to the technical field of thermosensitive paper coating equipment, in particular to roll type coating equipment with adjustable coating quantity.
Background
The main coating process comprises the following steps: winding a substrate, carrying out surface corona, coating a bottom layer, carrying out hot air drying, coating a middle layer, carrying out infrared drying, carrying out hot air drying, cooling, rolling a semi-finished product, curing, slitting, weighing, inner packaging, outer packaging and warehousing a finished product, wherein the process is an aqueous coating process, and the solvent-free composite process is simplified into: the method comprises the steps of substrate winding, surface corona, coating, lamination compounding, semi-finished product winding, curing, slitting, weighing, inner packaging, outer packaging and finished product warehousing, wherein the substrate is a material needing to be compounded, the corona is to carry out surface treatment on the substrate to ensure that different materials are not layered after being compounded, the water-based coating is to directly coat the material needing to be combined on the substrate, the water is evaporated through drying to realize compounding, and the solvent-free compounding is to bond the material needing to be combined after the adhesive is coated on the substrate to realize compounding.
The existing coating equipment is used for single-sided quantitative coating, and the coating amount cannot be flexibly adjusted according to actual coating requirements, for example, the patent design of the utility model with the publication number of CN114713457A improves the problem, but the coating mode of the thermosensitive paper in the patent design has some defects, and the coating quality is poor due to the fact that the contact between a coating roller and the thermosensitive paper is virtual contact when the coating roller is used, so that the coating quality is poor and the coating quality of the coating is uneven on the coating roller.
Disclosure of Invention
The technical scheme of the utility model aims at solving the technical problem that the prior art is too single, provides a solution which is obviously different from the prior art, and provides a roll type coating device with adjustable coating quantity in order to overcome the defects of the prior art.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a roll-type coating equipment of coating weight adjustable, includes the coating case and passes the inside thermal paper of coating case, the both ends of coating case are provided with cloth inlet and cloth outlet respectively, and the outside that two outer walls of coating case are located cloth inlet and cloth outlet place all is provided with the spacing roller, the inside position department that is close to cloth outlet in the inside of coating case installs first guide roll, the first coating subassembly is installed to the inside top side that is located the height of first guide roll in the inside of coating case, the below of first coating subassembly is provided with first regulation subassembly, the inside position department that is close to the one side of first coating subassembly of coating case is provided with first scraping subassembly, the inside of coating case is located the below of first guide roll and installs the second guide roll, the below of first coating subassembly is located the height one side that the second guide roll is located and is provided with the second coating subassembly, a second adjusting component is arranged below the second coating component, a second scraping component is arranged on one side of the second coating component, a third guide roller is arranged in the coating box and close to the position on one side below the second scraping component, a fourth guide roller is arranged at the position on one side below the third guide roller, a fifth guide roller is arranged at the position on the inner side of the coating box and close to the cloth outlet, the thermosensitive paper enters the coating box through the cloth inlet and sequentially passes through the bottom of the first coating component, the outer part of the first guide roller, the outer part of the second guide roller, the bottom of the second coating component, the outer part of the third guide roller, the outer part of the fourth guide roller and the outer part of the fifth guide roller, and flows out of the coating box through the cloth outlet, the interior of the coating box is provided with a plurality of heaters at the position where the thermosensitive paper passes through.
As a further improvement of the technical scheme of the utility model, arc-shaped shells are arranged at the bottoms of the first coating component and the second coating component, coating rollers are arranged in the arc-shaped shells, the middle parts of the coating rollers are connected with rotating shafts, and motors for driving the rotating shafts to rotate are arranged on the outer walls of the end parts of the arc-shaped shells.
As a further improvement of the technical scheme of the utility model, the first adjusting component and the second adjusting component both comprise a fixed seat fixedly connected to the inner wall of the coating box, the inner side of the top of the fixed seat is connected with a telescopic rod in the vertical direction, the inner side of the top of the telescopic rod is movably connected with a roller, the bottom end of the telescopic rod is positioned in the fixed seat and is fixedly connected with a first movable plate, a first movable cavity is arranged in the fixed seat, corresponding to the outer part of the first movable plate, in the vertical direction, and a first spring is connected between the bottom of the first movable plate and the inner wall of the first movable cavity.
As a further improvement of the technical scheme of the utility model, the fixed seat is fixedly connected with the inner wall of the coating box through screws, and the roller is movably connected with the top of the telescopic rod through a rotating shaft.
As a further improvement of the technical scheme of the utility model, the first scraping component and the second scraping component both comprise rotating rods movably connected to the inner wall of the coating box, a fixed plate is fixedly connected to one side of the inner wall of the coating box, which is positioned at the top of the rotating rods, a second spring is connected between the fixed plate and the top of the rotating rods, scraping plates are connected to the inner side of the bottom of the rotating rods along the vertical direction, the top of each scraping plate extends to the inner part of each rotating rod and is fixedly connected with a second movable plate, a second movable cavity is arranged in the inner part of each rotating rod, corresponding to the outer part of each second movable plate, along the vertical direction, and a third spring is connected between the top end of each second movable plate and the inner wall of the top of each second movable cavity.
As a further improvement of the technical scheme of the utility model, the rotating rod and the fixed plate are fixedly connected with the inner wall of the coating box through screws, the two end parts of the second spring are welded with the outer wall of the rotating rod and the outer wall of the fixed plate, and a rotating shaft is connected between the top of the rotating rod and the inner wall of the coating box.
As a further improvement of the technical scheme of the utility model, the two ends of the third spring are welded with the inner wall of the top of the second movable cavity and the top end of the second movable plate.
The utility model has the beneficial effects that:
1. according to the utility model, the first coating component is used for coating one side of the thermal paper, the second coating component is used for coating the other side of the thermal paper, the coating on the thermal paper is scraped by the scraping component after each coating, and then the coating is heated and dried by the heater arranged in the coating box, so that the coating on the two sides of the thermal paper is realized by using the technical scheme, and the coating quantity of the thermal paper is regulated and used, and if only one side is coated, any one of the first coating component or the second coating component is not used;
2. the structure of the coating component is that when the coating component is used, the rotating shaft is driven to rotate by the starting motor, so that the coating roller is driven to rotate, the coating roller is contacted with the coating and is brushed on the thermosensitive paper when the coating roller rotates, the coating effect is achieved, the coating operation can be continuously and uninterruptedly achieved when the coating roller is used, and the problem of poor coating quality caused by uneven coating on the coating roller is avoided;
3. the device comprises a coating component, a coating roller, a regulating component and a self-adaptive lifting roller, wherein the coating component is arranged on the coating component, the coating component is used for being matched with the coating roller at the bottom of the coating component, the coating roller can press down the thermal paper when contacting the thermal paper, so that the thermal paper can be in virtual contact with the coating roller, and the roller plays a role in supporting and supporting when the coating roller contacts the thermal paper, so that the thermal paper can be in full contact with the coating roller, and the coating effect is improved;
4. through setting up the subassembly of strickling, when using, when thermal paper transmission in-process, utilize the scraper blade to strickling the coating on the thermal paper and handle, the dwang can keep rotating, can rotate the compression second spring of self-adaptation when thermal paper appears the fold and take place to rotate, can not cause the scraper blade to lead to the fact wearing and tearing to thermal paper because of the problem of fold, and after the fold section was past, the second spring resets and promotes the scraper blade and resumes the normal position, simultaneously, the scraper blade also can keep the activity on the vertical direction, has improved self-adaptation effect.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a schematic view showing the external structure of the first coating tank in the present utility model.
Fig. 3 is a cross-sectional view of a first coating tank in accordance with the present utility model.
Fig. 4 is a schematic structural view of a first adjusting assembly and a second adjusting assembly according to the present utility model.
Fig. 5 is a schematic structural view of a first scraping assembly and a second scraping assembly according to the present utility model.
The reference numerals are: 1. a coating box; 2. a cloth inlet; 3. a cloth outlet; 4. a limit roller; 5. a first guide roller; 6. a first paint component; 7. a first adjustment assembly; 8. a first doctoring assembly; 9. a second guide roller; 10. a third guide roller; 11. a second coating assembly; 12. a second adjustment assembly; 13. a second doctoring assembly; 14. a fourth guide roller; 15. a fifth guide roller; 16. a heater; 17. an arc-shaped shell; 18. a rotating shaft; 19. a coating roller; 20. a motor; 21. a fixing seat; 22. a telescopic rod; 23. a roller; 24. a first movable plate; 25. a first movable chamber; 26. a first spring; 27. a rotating lever; 28. a rotating shaft; 29. a fixing plate; 30. a second spring; 31. a scraper; 32. a second movable plate; 33. a second movable chamber; 34. and a third spring.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The roll coating equipment with adjustable coating quantity as shown in the accompanying figures 1-5 comprises a coating box 1 and thermal paper penetrating through the inside of the coating box 1, wherein a cloth inlet 2 and a cloth outlet 3 are respectively arranged at two ends of the coating box 1, limit rolls 4 are arranged on the outer sides of the two outer walls of the coating box 1 where the cloth inlet 2 and the cloth outlet 3 are positioned, a first guide roll 5 is arranged at the inner side position of the inside of the coating box 1 near the cloth outlet 3, a first coating component 6 is arranged on one side of the inside of the coating box 1 above the height of the first guide roll 5, a first adjusting component 7 is arranged below the first coating component 6, a first scraping component 8 is arranged at one side position of the inside of the coating box 1 near the first coating component 6, a second guide roll 9 is arranged below the first guide roll 5, a second coating component 11 is arranged on one side of the height of the second guiding roller 9 below the first coating component 6, a second adjusting component 12 is arranged below the second coating component 11, a second scraping component 13 is arranged on one side of the second coating component 11, a third guiding roller 10 is arranged on one side of the lower part of the second scraping component 13, which is close to the lower part of the second scraping component 13, a fourth guiding roller 14 is arranged on one side of the lower part of the second guiding roller 9, which is close to the lower part of the third guiding roller 10, a fifth guiding roller 15 is arranged on the inner side of the inner part of the coating box 1, which is close to the cloth outlet 3, a thermosensitive paper enters the inner part of the coating box 1 through the cloth inlet 2 and sequentially passes through the bottom of the first coating component 6, the outer part of the first guiding roller 5, the outer part of the second guiding roller 9, the bottom of the second coating component 11, the outer part of the third guiding roller 10, the outer part of the fourth guiding roller 14 and the outer part of the fifth guiding roller 15, and flows out of the coating box 1 through the cloth outlet 3, and a plurality of heaters 16 are installed in the coating box 1 at positions where the thermal paper passes through.
In the technical scheme, the thermosensitive paper enters the coating box 1 through the cloth inlet 2, sequentially passes through the bottom of the first coating component 6, the outside of the first guide roller 5, the outside of the second guide roller 9, the bottom of the second coating component 11, the outside of the third guide roller 10, the outside of the fourth guide roller 14 and the outside of the fifth guide roller 15, and flows out of the coating box 1 through the cloth outlet 3, in the process, the first coating component 6 is utilized to carry out coating treatment on one side of the thermosensitive paper, the second coating component 11 is utilized to carry out coating treatment on the other side of the thermosensitive paper, after each coating, the set scraping component is utilized to carry out scraping treatment on the coating on the thermosensitive paper, and then the heater 16 arranged in the coating box 1 is utilized to carry out heating and drying treatment on the coating, so that the coating on the two sides of the thermosensitive paper is realized by the technical scheme, and the coating quantity of the thermosensitive paper is adjusted to be used, if only one side is required, and any one of the first coating component 6 or the second coating component 11 is not required.
As shown in fig. 1-3, the bottoms of the first paint component 6 and the second paint component 11 are respectively provided with an arc-shaped shell 17, a coating roller 19 is arranged in the arc-shaped shell 17, the middle part of the coating roller 19 is connected with a rotating shaft 18, and the outer walls of the end parts of the arc-shaped shells 17 are provided with a motor 20 for driving the rotating shaft 18 to rotate.
The structure setting of coating subassembly, when using, drive axis of rotation 18 through starter motor 20 and rotate, and then drive coating roller 19 and rotate, coating roller 19 contact coating and brush the coating roller on thermal paper when rotating, realize the coating effect, also make coating roller 19 can last incessantly realization coating operation when using, avoided the poor problem of coating quality because of the coating is inhomogeneous to cause on coating roller 19.
As shown in fig. 1 and fig. 4, the first adjusting component 7 and the second adjusting component 12 each comprise a fixed seat 21 fixedly connected to the inner wall of the coating box 1, a telescopic rod 22 is connected to the inner side of the top of the fixed seat 21 in the vertical direction, a roller 23 is movably connected to the inner side of the top of the telescopic rod 22, a first movable plate 24 is fixedly connected to the bottom end of the telescopic rod 22 in the fixed seat 21, a first movable cavity 25 is arranged in the fixed seat 21, corresponding to the outer portion of the first movable plate 24, in the vertical direction, and a first spring 26 is connected between the bottom of the first movable plate 24 and the inner wall of the first movable cavity 25.
The setting of adjusting part 7 for cooperate with the coating roller 19 of coating subassembly bottom, coating roller 19 can push down the thermal paper when contacting the thermal paper for thermal paper can with the virtual contact between the coating roller 19, but through setting up self-adaptation lift's roller 23, when coating roller 19 contacts the thermal paper, roller 23 plays the effect that supports the lift, makes thermal paper can with coating roller 19 complete contact, improves the coating effect.
As shown in fig. 1 and fig. 5, the first scraping assembly 8 and the second scraping assembly 13 each include a rotating rod 27 movably connected to an inner wall of the coating box 1, a fixing plate 29 is fixedly connected to one side of the top of the rotating rod 27 on the inner wall of the coating box 1, a second spring 30 is connected between the fixing plate 29 and the top of the rotating rod 27, a scraping plate 31 is connected to the inner side of the bottom of the rotating rod 27 in the vertical direction, a second movable plate 32 is fixedly connected to the top of the scraping plate 31 extending to the inner side of the rotating rod 27, a second movable cavity 33 is arranged in the inner side of the rotating rod 27 corresponding to the outer side of the second movable plate 32 in the vertical direction, and a third spring 34 is connected between the top end of the second movable plate 32 and the inner wall of the top of the second movable cavity 33.
Through setting up the subassembly of strickling, when using, when thermal paper transmission in-process, utilize scraper blade 31 to strickling the coating on the thermal paper and handle, dwang 27 can keep rotating, can self-adaptation rotation compression second spring 30 take place to rotate when thermal paper appears the fold, can not cause scraper blade 31 to cause wearing and tearing to thermal paper because of the problem of fold, and after the fold section was, second spring 30 resets and promotes scraper blade 31 and resumes the normal position, simultaneously, scraper blade 31 also can keep the activity on the vertical direction, has improved self-adaptation effect.
In the drawings of the disclosed embodiments, only the structures related to the embodiments of the present disclosure are referred to, and other structures can refer to the common design, so that the same embodiment and different embodiments of the present disclosure can be combined with each other without conflict;
finally: the foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and principles of the utility model are intended to be included within the scope of the utility model.

Claims (7)

1. The utility model provides a roll-type coating equipment of coating weight adjustable, includes coating case (1) and passes the inside thermal paper of coating case (1), its characterized in that: the utility model discloses a coating box, including coating box (1), first guide roll (5) are installed in the inboard position department that the inside of coating box (1) is close to cloth outlet (3), first coating subassembly (6) are installed to the top one side that the inside of coating box (1) is located first guide roll (5) and is located the height, the below of first coating subassembly (6) is provided with first regulation subassembly (7), the inside of coating box (1) is close to one side position department that first coating subassembly (6) is provided with first scraping subassembly (8), second guide roll (9) are installed to the below that the inside of coating box (1) is located first guide roll (5), first coating subassembly (11) are located to the below that the inside of first coating subassembly (1) is located high one side of second guide roll (5) is provided with first coating subassembly (11), second coating subassembly (11) are located the below second scraping subassembly (11) and are located the second coating subassembly (13) are located the second side position department that the inside of second coating box (1) is provided with first scraping subassembly (8), the temperature-sensitive paper feeding device is characterized in that a fourth guide roller (14) is arranged at a position, close to one side below the second guide roller (9), of the third guide roller (10), a fifth guide roller (15) is arranged at a position, close to the inner side of the cloth outlet (3), of the inner side of the coating box (1), the temperature-sensitive paper enters the coating box (1) through the cloth inlet (2) and sequentially passes through the bottom of the first coating component (6), the outer part of the first guide roller (5), the outer part of the second guide roller (9), the bottom of the second coating component (11), the outer part of the third guide roller (10), the outer part of the fourth guide roller (14) and the outer part of the fifth guide roller (15), and flows out of the coating box (1) through the cloth outlet (3), and a plurality of heaters (16) are arranged at positions, where the temperature-sensitive paper passes, of the inner part of the coating box (1).
2. The roll coating apparatus with an adjustable coating amount according to claim 1, characterized in that: the coating machine comprises a first coating component (6) and a second coating component (11), wherein arc shells (17) are arranged at the bottoms of the first coating component and the second coating component (11), coating rollers (19) are arranged in the arc shells (17), rotating shafts (18) are connected to the middle parts of the coating rollers (19), and motors (20) for driving the rotating shafts (18) to rotate are arranged on the outer walls of the end parts of the arc shells (17).
3. The roll coating apparatus with an adjustable coating amount according to claim 1, characterized in that: the utility model discloses a coating box, including fixing base (21) of first regulation subassembly (7) and second regulation subassembly (12), fixing base (21) are inboard along vertical direction upper junction telescopic link (22), the inboard swing joint in top of telescopic link (22) has roller (23), the bottom of telescopic link (22) is located fixing base (21) inside fixedly connected with first fly leaf (24), the inside of fixing base (21) corresponds the outside of first fly leaf (24) and is provided with first movable chamber (25) along vertical direction, be connected with first spring (26) between the bottom of first fly leaf (24) and the inner wall of first movable chamber (25).
4. A roll coating apparatus with an adjustable coating amount according to claim 3, characterized in that: the fixing seat (21) is fixedly connected with the inner wall of the coating box (1) through screws, and the roller (23) is movably connected with the top of the telescopic rod (22) through a rotating shaft.
5. The roll coating apparatus with an adjustable coating amount according to claim 1, characterized in that: the first component (8) of strickling and the second component (13) of strickling all include swing joint dwang (27) at coating case (1) inner wall, the inner wall of coating case (1) is located top one side fixedly connected with fixed plate (29) of dwang (27), be connected with second spring (30) between the top of fixed plate (29) and dwang (27), be connected with scraper blade (31) in the vertical direction in the bottom inboard of dwang (27), the inside fixedly connected with second fly leaf (32) of top extension to dwang (27) of scraper blade (31), the outside that the inside of dwang (27) corresponds second fly leaf (32) is provided with second movable chamber (33) along vertical direction, be connected with third spring (34) between the top of second fly leaf (32) and the top inner wall of second movable chamber (33).
6. The roll coating apparatus with an adjustable coating amount according to claim 5, characterized in that: the rotary rod (27) and the fixed plate (29) are fixedly connected with the inner wall of the coating box (1) through screws, the two end parts of the second spring (30) are welded with the outer wall of the rotary rod (27) and the outer wall of the fixed plate (29), and a rotating shaft (28) is connected between the top of the rotary rod (27) and the inner wall of the coating box (1).
7. The roll coating apparatus with an adjustable coating amount according to claim 5, characterized in that: and the two end parts of the third spring (34) are welded with the top inner wall of the second movable cavity (33) and the top end of the second movable plate (32).
CN202321011218.8U 2023-04-28 2023-04-28 Coating quantity adjustable roller type coating equipment Active CN220579681U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202321011218.8U CN220579681U (en) 2023-04-28 2023-04-28 Coating quantity adjustable roller type coating equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202321011218.8U CN220579681U (en) 2023-04-28 2023-04-28 Coating quantity adjustable roller type coating equipment

Publications (1)

Publication Number Publication Date
CN220579681U true CN220579681U (en) 2024-03-12

Family

ID=90117215

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202321011218.8U Active CN220579681U (en) 2023-04-28 2023-04-28 Coating quantity adjustable roller type coating equipment

Country Status (1)

Country Link
CN (1) CN220579681U (en)

Similar Documents

Publication Publication Date Title
CN110202907A (en) A kind of cardboard film covering device for cardboard processing
CN220579681U (en) Coating quantity adjustable roller type coating equipment
CN114277608A (en) Five-roller coating machine and coating method thereof
WO2014003936A1 (en) Paper coating apparatus with multiple hot wax applicators and associated methods
CN218701414U (en) Go out even film roll production of gluing and use dry-type compounding machine
TWI627070B (en) Paperless transfer printing machine
CN217532257U (en) Pen ink drying equipment for paper printing
CN114798301B (en) Coating machine for reverse kiss coating
CN110252568A (en) A kind of transfer film adhesive layer apparatus for coating
CN206317541U (en) A kind of printing machine hot-air drying device
CN209159168U (en) A kind of cleaning type printing equipment of uniformly lower ink
CN211165916U (en) A semi-automatic compound membrane pressfitting machine for printing production is with save material
CN208306106U (en) A kind of conduction oil heating roller and its gluing drying system
CN219133406U (en) Corrugated pit machine scribbles thick liquid mechanism
CN219486834U (en) Non-volatile solvent laminating machine
CN211756381U (en) Tobacco production is with hot-rolling coating machine of taking ultrasonic spray
CN208757956U (en) A kind of base material film coating drying unit
CN117325554B (en) Printing machine suitable for water-based ink decorative paper
CN218854641U (en) High-speed coating machine
CN214934644U (en) Adjustable conveying belt compression roller mechanism for folding machine
CN218963087U (en) Coating machine with more uniform coating
CN210906737U (en) Color-coated aluminum coil coating roller set
CN214440365U (en) Coating device for producing thermosensitive film
CN219820807U (en) Embossing machine of high stability
CN209735928U (en) Corona and coating liquid integrated machine for winding drum material

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant