CN216226171U - Aluminum calendering board conveying auxiliary mechanism - Google Patents

Aluminum calendering board conveying auxiliary mechanism Download PDF

Info

Publication number
CN216226171U
CN216226171U CN202122989280.1U CN202122989280U CN216226171U CN 216226171 U CN216226171 U CN 216226171U CN 202122989280 U CN202122989280 U CN 202122989280U CN 216226171 U CN216226171 U CN 216226171U
Authority
CN
China
Prior art keywords
fixedly connected
plate
base
rotating rod
motor
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
CN202122989280.1U
Other languages
Chinese (zh)
Inventor
陈文戈
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.)
Henan Deyijia Aluminum Co ltd
Original Assignee
Henan Deyijia Aluminum 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 Henan Deyijia Aluminum Co ltd filed Critical Henan Deyijia Aluminum Co ltd
Priority to CN202122989280.1U priority Critical patent/CN216226171U/en
Application granted granted Critical
Publication of CN216226171U publication Critical patent/CN216226171U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Press Drives And Press Lines (AREA)

Abstract

The utility model discloses an aluminum calendering plate conveying auxiliary mechanism in the technical field of calendering assistance, which comprises a base, wherein the top of the base is fixedly connected with a fixed frame, the front of the fixed frame is fixedly connected with a supporting plate, a guide mechanism is arranged inside the base, the left side of the inner cavity of the base is fixedly connected with a vertical plate, the bottom of the supporting plate is provided with a calendering mechanism, the top of the base is fixedly connected with a placing frame, the inside of the fixed frame is provided with a conveying mechanism, the guide mechanism comprises a first motor, a threaded rod, a movable block, a movable plate and a guide clamping plate, the surface of the first motor is fixedly connected with the inner cavity of the base, one end of the threaded rod is fixedly connected with a rotating shaft of the first motor, and the other end of the threaded rod is movably connected with the inner walls of the base and the vertical plate through a bearing. The utility model solves the problems that the existing aluminum rolled plate conveying auxiliary mechanism is poor in stabilizing effect in the use process and inconvenient to mount and dismount.

Description

Aluminum calendering board conveying auxiliary mechanism
Technical Field
The utility model relates to the technical field of calendering assistance, in particular to an aluminum rolled plate conveying auxiliary mechanism.
Background
The aluminum plate is a rectangular plate formed by rolling an aluminum ingot, wherein the aluminum material with the thickness of more than 0.2mm and less than 500mm, the width of more than 200mm and the length of 16m is called an aluminum plate or an aluminum sheet, the aluminum material with the thickness of less than 0.2mm is an aluminum material, the width of less than 200mm is a row material or a strip material, and the aluminum plate is divided into a pure aluminum plate, an alloy aluminum plate, a thin aluminum plate, a medium-thickness aluminum plate and a pattern aluminum plate.
Present aluminium calendering board conveying complementary unit is manual at the use, and it is mostly manual to lead to panel and fix, and it is poor to lead to the firm effect of panel, appears the skew easily, has increaseed the consumption of labour simultaneously, and partial mechanism's installation is dismantled inconveniently to reduce the life of mechanism, be unfavorable for people's use. Accordingly, those skilled in the art have provided an aluminum rolled sheet conveyance assisting mechanism to solve the problems set forth in the background art described above.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an auxiliary mechanism for conveying an aluminum rolled plate, which aims to solve the problems in the prior art.
In order to achieve the purpose, the utility model provides the following technical scheme:
the utility model provides an aluminium calendering board conveying complementary unit, includes the base, the top fixedly connected with mount of base, the positive fixedly connected with backup pad of mount, the inside of base is provided with guiding mechanism, the left side fixedly connected with riser of base inner chamber, the bottom of backup pad is provided with the calendering mechanism, the top fixedly connected with rack of base, the inside of mount is provided with transport mechanism.
As a further scheme of the utility model: the guide mechanism comprises a first motor, a threaded rod, a moving block, a moving plate and a guide clamping plate, the surface of the first motor is fixedly connected with the inner cavity of the base, one end of the threaded rod is fixedly connected with a rotating shaft of the first motor, the other end of the threaded rod is movably connected with the inner walls of the base and the vertical plate through bearings respectively, the inside of the moving block is in threaded connection with the surface of the threaded rod, the bottom of the moving plate is fixedly connected with the top of the moving block, the top of the moving plate extends to the outside of the base, and the right side of the guide clamping plate is fixedly connected with the top of one side of the moving plate.
As a still further scheme of the utility model: the extension mechanism includes hydraulic press, supporting shoe, horizontal piece, buckle, extends clamp plate and fixed pin, the inside fixed connection of surface and backup pad of hydraulic press, the top and the bottom of hydraulic press extend to the outside of backup pad respectively, the top of supporting shoe and the bottom fixed connection of hydraulic press, one side of horizontal piece and one side fixed connection of supporting shoe, the inside of buckle and the surface swing joint of horizontal piece, extend the one side at clamp plate top and the bottom fixed connection of buckle, the bottom of supporting shoe extends to the inside that extends the clamp plate, the bottom of fixed pin and the top swing joint of buckle, buckle and the inside that extends the clamp plate are run through to bottom one side of fixed pin.
As a still further scheme of the utility model: transport mechanism includes second motor, first bull stick, first carousel, second bull stick and calendering roller, the bottom of second motor and the top fixed connection of base, the left end of first bull stick and the pivot fixed connection of second motor, the inside of first carousel is connected with the fixed surface of first bull stick, the surface of second carousel passes through the belt and is connected with the surface transmission of first carousel, the left end of second bull stick and the right side fixed connection of second carousel, the right-hand member of first bull stick and second bull stick all extends to the inside of mount, the right-hand member of first bull stick and second bull stick all passes through the inner wall swing joint of bearing and mount, the inside of calendering roller respectively with the fixed surface of first bull stick and second bull stick be connected.
As a still further scheme of the utility model: the equal fixedly connected with landing leg in both sides of base bottom, the quantity of landing leg is four.
As a still further scheme of the utility model: the inside fixedly connected with baffle of base, the inside of baffle and the surface swing joint of threaded rod.
As a still further scheme of the utility model: the movable groove is formed in each of the two sides of the top of the base, and the surface of the movable plate is movably connected with the inner wall of the movable groove.
As a still further scheme of the utility model: the inside of rack and extension clamp plate all has the running roller through bearing swing joint, the top and the bottom of running roller extend to the outside of rack and extension clamp plate respectively.
Compared with the prior art, the utility model has the beneficial effects that:
1. according to the utility model, the moving direction of the plate can be corrected by utilizing the guide mechanism in the base, the plate can be stably moved in the rolling process by utilizing the extension mechanism arranged at the top of the fixing frame, meanwhile, the extension mechanism is convenient to mount and dismount, the service life of the mechanism can be prolonged, and the plate can be conveniently rolled and conveyed by utilizing the conveying mechanism in the fixing frame.
2. According to the utility model, the threaded rod is driven to rotate by the first motor, the threaded rod drives the moving block to move, the moving block drives the guide clamping plate to move by the moving plate, the moving direction of the plate on the placing frame can be corrected, and the plate moving direction can be guided, the supporting block is driven to press downwards by the hydraulic machine, the supporting block drives the extension pressing plate to extend the plate on the placing frame, so that the plate can be stably moved in the extension process, meanwhile, the extension pressing plate can be conveniently installed at the bottom of the supporting block through the connection relation between the transverse blocks installed at two sides of the supporting block and the buckles installed at two sides of the top of the extension pressing plate, the fixing effect between the transverse blocks and the buckles can be increased when the fixing pin penetrates through the transverse blocks and the buckles and is inserted into the extension pressing plate, so that the mechanism can achieve the purpose of convenient installation and disassembly, the first rotating rod is driven to rotate by the second motor, first runner drives first carousel and rotates, first carousel passes through the belt and drives the rotation of second carousel, the second carousel drives the rotation of second runner, first runner and second runner drive the calendering roller simultaneously and rotate, can conveniently carry out the calendering conveying to panel, landing leg through the installation of base bottom, can support the base, baffle through base internally mounted, can support the threaded rod, thereby make threaded rod pivoted more stable, the shifting chute seted up through the base top, can make things convenient for the movable plate to remove inside the base, through rack and the running roller of extension clamp board internally mounted, can reduce the resistance of panel when extending the pressure in-process and remove.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a cross-sectional view of the structure of the present invention;
FIG. 3 is an enlarged view of A in FIG. 2 according to the present invention.
In the figure: 1. a base; 2. a fixed mount; 3. a support plate; 4. a guide mechanism; 41. a first motor; 42. a threaded rod; 43. a moving block; 44. moving the plate; 45. a guide clamping plate; 5. a vertical plate; 6. a calendering mechanism; 61. a hydraulic press; 62. a support block; 63. a transverse block; 64. buckling; 65. a plate is extended and pressed; 66. a fixing pin; 7. placing a rack; 8. a transport mechanism; 81. a second motor; 82. a first rotating lever; 83. a first turntable; 84. a second turntable; 85. a second rotating rod; 86. calendering the roller; 9. a support leg; 10. a baffle plate; 11. a moving groove; 12. and (4) rolling.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 3, in an embodiment of the present invention, an auxiliary mechanism for conveying an aluminum rolled plate includes a base 1, a fixed frame 2 is fixedly connected to a top of the base 1, a supporting plate 3 is fixedly connected to a front surface of the fixed frame 2, a guiding mechanism 4 is disposed inside the base 1, a vertical plate 5 is fixedly connected to a left side of an inner cavity of the base 1, a rolling mechanism 6 is disposed at a bottom of the supporting plate 3, a placing frame 7 is fixedly connected to a top of the base 1, and a conveying mechanism 8 is disposed inside the fixed frame 2.
Utilize the inside guiding mechanism 4 of base 1, can correct the moving direction of panel, utilize the extension mechanism 6 of 2 top installations of mount, can make panel carry out steady removal in the calendering process, the condition of being convenient for install the dismantlement through extension mechanism 6 simultaneously, can improve the life of mechanism, utilize the inside transport mechanism 8 of mount 2, can conveniently mangle the conveying to panel, it is poor to have solved the effect that current aluminium calendering board conveying complementary unit stabilizes in the use, and the problem of inconvenient installation dismantlement.
In this embodiment, the guide mechanism 4 includes a first motor 41, a threaded rod 42, a moving block 43, a moving plate 44 and a guide clamp plate 45, the surface of the first motor 41 is fixedly connected with the inner cavity of the base 1, one end of the threaded rod 42 is fixedly connected with the rotating shaft of the first motor 41, the other end of the threaded rod 42 is movably connected with the inner walls of the base 1 and the vertical plate 5 through a bearing, the inside of the moving block 43 is connected with the surface of the threaded rod 42 through a thread, the bottom of the moving plate 44 is fixedly connected with the top of the moving block 43, the top of the moving plate 44 extends to the outside of the base 1, and the right side of the guide clamp plate 45 is fixedly connected with the top of one side of the moving plate 44.
The threaded rod 42 is driven to rotate through the first motor 41, the threaded rod 42 drives the moving block 43 to move, the moving block 43 drives the guide clamping plate 45 to move through the moving plate 44, the moving direction of the plate on the placing frame 7 can be corrected, and meanwhile the effect of guiding the moving direction of the plate is achieved.
In this embodiment, the extending mechanism 6 includes a hydraulic machine 61, a supporting block 62, a cross block 63, a buckle 64, an extending pressure plate 65 and a fixing pin 66, the surface of the hydraulic machine 61 is fixedly connected with the inside of the supporting plate 3, the top and the bottom of the hydraulic machine 61 extend to the outside of the supporting plate 3 respectively, the top of the supporting block 62 is fixedly connected with the bottom of the hydraulic machine 61, one side of the cross block 63 is fixedly connected with one side of the supporting block 62, the inside of the buckle 64 is movably connected with the surface of the cross block 63, one side of the top of the extending pressure plate 65 is fixedly connected with the bottom of the buckle 64, the bottom of the supporting block 62 extends to the inside of the extending pressure plate 65, the bottom of the fixing pin 66 is movably connected with the top of the buckle 64, and one side of the bottom end of the fixing pin 66 penetrates through the buckle 64 and the cross block 63 and extends to the inside of the extending pressure plate 65.
Drive supporting shoe 62 through hydraulic press 61 and push down, supporting shoe 62 drives and prolongs the panel of clamp plate 65 on to rack 7 and prolong the pressure, thereby can make panel carry out steady removal in the calendering process, the crosspiece 63 through the installation of supporting shoe 62 both sides simultaneously with prolong the relation of connection between the buckle 64 of clamp plate 65 top both sides installation, can conveniently install the bottom at supporting shoe 62 with prolonging clamp plate 65, run through crosspiece 63 and buckle 64 and insert the inside of prolonging clamp plate 65 through fixed pin 66, can increase the fixed effect between crosspiece 63 and the buckle 64, thereby can make the mechanism reach the purpose of being convenient for the installation and dismantlement.
In this embodiment, the conveying mechanism 8 includes a second motor 81, a first rotating rod 82, a first rotating disk 83, a second rotating disk 84, a second rotating rod 85 and a calendering roller 86, a bottom of the second motor 81 is fixedly connected with a top of the base 1, a left end of the first rotating rod 82 is fixedly connected with a rotating shaft of the second motor 81, an inside of the first rotating disk 83 is fixedly connected with a surface of the first rotating rod 82, a surface of the second rotating disk 84 is in transmission connection with a surface of the first rotating disk 83 through a belt, a left end of the second rotating rod 85 is fixedly connected with a right side of the second rotating disk 84, right ends of the first rotating rod 82 and the second rotating rod 85 both extend to an inside of the fixed frame 2, right ends of the first rotating rod 82 and the second rotating rod 85 both are movably connected with an inner wall of the fixed frame 2 through bearings, and an inside of the calendering roller 86 is respectively fixedly connected with surfaces of the first rotating rod 82 and the second rotating rod 85.
Drive first bull stick 82 through second motor 81 and rotate, first bull stick 82 drives first carousel 83 and rotates, and first carousel 83 drives second carousel 84 through the belt and rotates, and second carousel 84 drives second bull stick 85 and rotates, and first bull stick 82 and second bull stick 85 drive calendering roller 86 simultaneously and rotate, can conveniently carry out the calendering conveying to panel.
In this embodiment, the two sides of the bottom of the base 1 are fixedly connected with four legs 9, and the number of the legs 9 is four.
The base 1 can be supported by the legs 9 installed at the bottom of the base 1.
In this embodiment, the inner portion of the base 1 is fixedly connected with the baffle 10, and the inner portion of the baffle 10 is movably connected with the surface of the threaded rod 42.
The threaded rod 42 can be supported by the baffle 10 arranged in the base 1, so that the threaded rod 42 can rotate more stably.
In this embodiment, the two sides of the top of the base 1 are both provided with moving grooves 11, and the surface of the moving plate 44 is movably connected with the inner walls of the moving grooves 11.
The moving plate 44 can be moved in the base 1 conveniently through the moving groove 11 formed at the top of the base 1.
In this embodiment, the inside of the placing frame 7 and the inside of the extending plate 65 are both movably connected with rollers 12 through bearings, and the top and bottom of the rollers 12 extend to the outside of the placing frame 7 and the extending plate 65 respectively.
Through rack 7 and the running roller 12 of extending the inside installation of clamp plate 65, can reduce the resistance of panel when extending the pressure process and remove.
The working principle of the utility model is as follows: when the plate needs to be rolled and conveyed, firstly, the extension pressing plate 65 is installed at the bottom of the supporting block 62 through the buckle 64, the cross block 63 and the fixing pin 66, then the first motor 41 is started through an external power supply, the first motor 41 drives the threaded rod 42 to rotate, the threaded rod 42 drives the moving block 43 to move, the moving block 43 drives the moving plate 44 to move, the moving plate 44 drives the guide clamping plate 45 to move, the moving direction of the plate on the placing frame 7 can be corrected and guided, then the hydraulic machine 61 is started through the external power supply, the hydraulic machine 61 drives the supporting block 62 to press downwards, the supporting block 62 drives the extension pressing plate 65 to extend the plate on the placing frame 7, so that the plate can be stably moved in the rolling process, finally, the second motor 81 is started through the external power supply, the second motor 81 drives the first rotating rod 82 to rotate, the first rotating rod 82 drives the first rotating disc 83 to rotate, first carousel 83 passes through the belt and drives second carousel 84 and rotate, and second carousel 84 drives second bull stick 85 and rotates, and first bull stick 82 and second bull stick 85 drive calendering roller 86 simultaneously and rotate, can conveniently mangle the conveying to panel.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims (8)

1. The utility model provides an aluminium calendering board conveying complementary unit, includes base (1), its characterized in that: the top fixedly connected with mount (2) of base (1), the positive fixedly connected with backup pad (3) of mount (2), the inside of base (1) is provided with guiding mechanism (4), the left side fixedly connected with riser (5) of base (1) inner chamber, the bottom of backup pad (3) is provided with extension mechanism (6), the top fixedly connected with rack (7) of base (1), the inside of mount (2) is provided with transport mechanism (8).
2. The aluminum rolled sheet conveying assist mechanism according to claim 1, characterized in that: the guide mechanism (4) comprises a first motor (41), a threaded rod (42), a moving block (43), a moving plate (44) and a guide clamping plate (45), the surface of the first motor (41) is fixedly connected with the inner cavity of the base (1), one end of the threaded rod (42) is fixedly connected with a rotating shaft of the first motor (41), the other end of the threaded rod (42) is movably connected with the inner walls of the base (1) and the vertical plate (5) through a bearing, the inner portion of the moving block (43) is in threaded connection with the surface of the threaded rod (42), the bottom of the moving plate (44) is fixedly connected with the top of the moving block (43), the top of the moving plate (44) extends to the outer portion of the base (1), and the right side of the guide clamping plate (45) is fixedly connected with the top of one side of the moving plate (44).
3. The aluminum rolled sheet conveying assist mechanism according to claim 1, characterized in that: the extension pressing mechanism (6) comprises a hydraulic machine (61), a supporting block (62), a cross block (63), a buckle (64), an extension pressing plate (65) and a fixing pin (66), the surface of the hydraulic machine (61) is fixedly connected with the inside of the supporting plate (3), the top and the bottom of the hydraulic machine (61) respectively extend to the outside of the supporting plate (3), the top of the supporting block (62) is fixedly connected with the bottom of the hydraulic machine (61), one side of the cross block (63) is fixedly connected with one side of the supporting block (62), the inside of the buckle (64) is movably connected with the surface of the cross block (63), one side of the top of the extension pressing plate (65) is fixedly connected with the bottom of the buckle (64), the bottom of the supporting block (62) extends to the inside of the extension pressing plate (65), and the bottom of the fixing pin (66) is movably connected with the top of the buckle (64), one side of the bottom end of the fixing pin (66) penetrates through the buckle (64) and the cross block (63) and extends into the extension plate (65).
4. The aluminum rolled sheet conveying assist mechanism according to claim 1, characterized in that: the conveying mechanism (8) comprises a second motor (81), a first rotating rod (82), a first rotating disc (83), a second rotating disc (84), a second rotating rod (85) and a calendering roller (86), the bottom of the second motor (81) is fixedly connected with the top of the base (1), the left end of the first rotating rod (82) is fixedly connected with the rotating shaft of the second motor (81), the inside of the first rotating disc (83) is fixedly connected with the surface of the first rotating rod (82), the surface of the second rotating disc (84) is connected with the surface of the first rotating disc (83) through a belt in a transmission manner, the left end of the second rotating rod (85) is fixedly connected with the right side of the second rotating disc (84), the right ends of the first rotating rod (82) and the second rotating rod (85) extend to the inside of the fixed frame (2), and the right ends of the first rotating rod (82) and the second rotating rod (85) are movably connected with the inner wall of the fixed frame (2) through bearings, the interior of the calendering roller (86) is fixedly connected with the surfaces of the first rotating rod (82) and the second rotating rod (85) respectively.
5. The aluminum rolled sheet conveying assist mechanism according to claim 1, characterized in that: the support leg structure is characterized in that the two sides of the bottom of the base (1) are fixedly connected with support legs (9), and the number of the support legs (9) is four.
6. The aluminum rolled sheet conveying assist mechanism according to claim 2, characterized in that: the inner part of the base (1) is fixedly connected with a baffle (10), and the inner part of the baffle (10) is movably connected with the surface of the threaded rod (42).
7. The aluminum rolled sheet conveying assist mechanism according to claim 2, characterized in that: the movable plate is characterized in that moving grooves (11) are formed in two sides of the top of the base (1), and the surface of the moving plate (44) is movably connected with the inner walls of the moving grooves (11).
8. The aluminum rolled sheet conveying assist mechanism according to claim 3, characterized in that: the inside of rack (7) and extension clamp plate (65) all has running roller (12) through bearing swing joint, the top and the bottom of running roller (12) extend to the outside of rack (7) and extension clamp plate (65) respectively.
CN202122989280.1U 2021-12-01 2021-12-01 Aluminum calendering board conveying auxiliary mechanism Active CN216226171U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202122989280.1U CN216226171U (en) 2021-12-01 2021-12-01 Aluminum calendering board conveying auxiliary mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202122989280.1U CN216226171U (en) 2021-12-01 2021-12-01 Aluminum calendering board conveying auxiliary mechanism

Publications (1)

Publication Number Publication Date
CN216226171U true CN216226171U (en) 2022-04-08

Family

ID=80961635

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202122989280.1U Active CN216226171U (en) 2021-12-01 2021-12-01 Aluminum calendering board conveying auxiliary mechanism

Country Status (1)

Country Link
CN (1) CN216226171U (en)

Similar Documents

Publication Publication Date Title
CN216226171U (en) Aluminum calendering board conveying auxiliary mechanism
CN217894259U (en) Lifting mechanism of PCB board collecting machine
CN213223853U (en) Pipe making machine for hot-dip galvanized steel strip processing
CN211889287U (en) Warm strake fixed length cutting device
CN212494697U (en) High-efficiency plate rolling machine
CN113043778A (en) Machining device for anti-skid composite steel plate
CN213445488U (en) Paperboard laminating device for paperboard processing
CN212021090U (en) Automatic assembly line for furniture assembly
CN210390608U (en) Embossing machine convenient for fixing aluminum plate
CN111151667A (en) Automatic go up unloading formula switch board casing processingequipment
CN220973772U (en) Discharging auxiliary mechanism for wood board embossing machine
CN111389973A (en) Automatic material loading and rolling machine
CN210725513U (en) Rolling mechanism for flexible circuit board processing equipment
CN111268897A (en) Cutting equipment is used in processing of foam glass decoration intergral template
CN220537065U (en) Pressing device for paper label production
CN215998423U (en) Die for realizing forging and pressing molding by stamping mode
CN216605943U (en) Ironing mechanism
CN214719409U (en) Position guide device of cold rolling mill
CN216548386U (en) Conveying structure for material frame transmission
CN219969692U (en) Portable special brick taking device
CN215666232U (en) Rewinding machine paper roll mechanism convenient to installation is dismantled
CN218318935U (en) Logistics supply chain is with storage conveyer that prevents goods and roll down
CN217668151U (en) Portable steel band processing fixing device
CN208649690U (en) Geotextiles roll unit
CN221018092U (en) Auxiliary structure for bending machine

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant