CN214919591U - Stamping device for producing relay accessories - Google Patents
Stamping device for producing relay accessories Download PDFInfo
- Publication number
- CN214919591U CN214919591U CN202121403449.4U CN202121403449U CN214919591U CN 214919591 U CN214919591 U CN 214919591U CN 202121403449 U CN202121403449 U CN 202121403449U CN 214919591 U CN214919591 U CN 214919591U
- Authority
- CN
- China
- Prior art keywords
- fixedly connected
- stamping die
- device body
- conveyor belt
- producing
- 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
Links
Images
Landscapes
- Adornments (AREA)
Abstract
The utility model relates to a punching device, in particular to a punching device for producing relay accessories, which comprises a device body, wherein a feed port is arranged on the outer surface of one side of the device body, a discharge port is arranged on the surface of the other side of the device body, conveyor belt fixing plates are fixedly connected on both sides of the discharge port and the feed port, conveying rollers are rotatably connected between the conveyor belt fixing plates on both sides of the discharge port and the feed port, two conveying rollers are arranged and connected through conveyor belt transmission, accessory grooves are equidistantly arranged on the surface of the conveyor belt, accessories are arranged in the accessory grooves, in the utility model, a plurality of dies can be centralized together through a belt, a driving motor and a punching die fixing plate, a plurality of accessories are punched simultaneously, the punching efficiency is improved, and a plurality of dies are started through a driving component, the equipment cost is saved.
Description
Technical Field
The utility model relates to a stamping device specifically is a stamping device for producing relay accessory.
Background
The stamping is a forming processing method which applies external force to plates, strips, pipes, sections and the like by a press and a die to cause the plates, the strips, the pipes, the sections and the like to generate plastic deformation or separation, thereby obtaining workpieces (stamped parts) with required shapes and sizes, the stamping and the forging belong to plastic processing (or called pressure processing), the stamping is called forging and pressing, the stamped blanks are mainly hot-rolled and cold-rolled steel plates and steel strips, 60-70 percent of the steel products in the whole world are the plates, most of the plates are made into finished products by stamping, iron cores and silicon steel sheets of automobiles, oil tanks, radiator sheets, steam drums of boilers, shells of containers, motors, electric appliances and the like are all stamped, in products such as instruments, household appliances, bicycles, office machines, living utensils and the like, a large number of stamped parts are arranged in relays, a block-shaped object is attracted by fixed electromagnets, and forms a closed magnetic circuit with the electromagnets after movement, this moving ferromagnetic body is called "armature", and the existing punching device has the following disadvantages:
1. most of the existing stamping devices are provided with one stamping die for stamping, the efficiency is low, the existing stamping devices are not suitable for large-scale production, or a plurality of stamping dies are arranged for stamping, but each stamping die needs to be provided with a driving assembly, and the equipment cost is improved.
2. Most of the existing stamping devices are not provided with a buffer assembly, and in the stamping process, the accessories are suddenly stressed and can shift back to the original position, so that the product quality is influenced.
There is therefore a need for a stamping device for producing relay fittings that ameliorates the above-mentioned problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a stamping device for producing relay accessory to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
a punching device for producing relay accessories comprises a device body, wherein a feed inlet is formed in the outer surface of one side of the device body, a discharge outlet is formed in the surface of the other side of the device body, conveyor belt fixing plates are fixedly connected to the two sides of the discharge outlet and the feed inlet, conveying rollers are rotatably connected between the conveyor belt fixing plates on the two sides of the discharge outlet and the feed inlet, two conveying rollers are arranged and connected through conveyor belt transmission, accessory grooves are formed in the surfaces of the conveying rollers at equal intervals, accessories are arranged in the accessory grooves, a transmission motor is fixedly arranged on the surface of one side of the conveyor belt fixing plate on the one side of the feed inlet, the output end of the transmission motor is fixedly connected with the conveying roller on the one side of the feed inlet, lower punching die fixing plates are fixedly connected to the inner walls on the two sides in the device body, and two lower punching die fixing plates are arranged, the device comprises a lower stamping die and a lower stamping die fixing plate, wherein the lower stamping die is fixedly connected between the two lower stamping die fixing plates, a driving motor is fixedly connected to the outer surface of the portion of the device body, a rotating shaft is fixedly connected to the output end of the driving motor, the rotating shaft penetrates through the top of the device body, and two first belt pulleys are fixedly connected to the surface of the rotating shaft.
As the utility model discloses preferred scheme, swivelling joint has the threaded rod between lower stamping die fixed plate upper surface and the device body top inner wall, the threaded rod is provided with two, and two threaded rods are located the pivot both sides respectively, threaded rod upper end fixedly connected with second belt pulley, the transmission is connected with the belt between second belt pulley and the first belt pulley.
As the utility model discloses preferred scheme, threaded connection has the nut piece on the threaded rod, stamping die fixed plate is connected with under the nut piece fixed surface, stamping die is gone up to the equidistant fixedly connected with in stamping die fixed plate lower surface.
As the utility model discloses preferred scheme, fixed surface is connected with the sleeve under the nut piece, the sleeve is provided with four, four the sleeve is located the both sides of two threaded rods respectively, the inside top fixed surface of sleeve is connected with the spring, spring lower extreme fixedly connected with telescopic link, telescopic link lower extreme fixedly connected with elastic rubber plate.
As the utility model discloses preferred scheme, device body one side outside fixed surface is connected with the controller, the fixed observation window that is equipped with in controller one side.
As the utility model discloses preferred scheme, the downside of discharge gate is equipped with the accessory collecting box.
Compared with the prior art, the beneficial effects of the utility model are that:
1. in the utility model, a plurality of accessories are placed in the accessory groove of the conveying belt through the belt, the driving motor and the stamping die fixing plate, the driving motor is started to rotate through the controller, the driving motor further drives the conveying roller at the feed inlet to rotate, the conveying belt is further driven to rotate, the conveying belt further drives the accessories to slide on the lower stamping die, when the accessories slide under the upper stamping die, the driving motor stops rotating, the driving motor is started to rotate simultaneously, the driving motor further drives the rotating shaft to rotate, the rotating shaft further drives the first belt pulley to rotate, the first belt pulley further drives the second belt pulley to rotate through the belt, the second belt pulley further drives the threaded rod to rotate, the threaded rod further drives the nut block to move downwards, the nut block further drives the upper stamping die fixing plate and the upper stamping die to move downwards, further make the upper stamping die carry out stamping process to the accessory, restart drive motor rotates, processes a set of accessory next, and when the accessory after the processing moved the discharge gate along with the conveyer belt, the accessory dropped to collect in the accessory collecting box, can concentrate a plurality of moulds together, carries out the punching press to a plurality of accessories simultaneously, has improved punching press efficiency, starts a plurality of moulds through a drive assembly simultaneously, has practiced thrift equipment cost.
2. The utility model discloses in, through the spring that sets up, go up stamping die in the downstream process again, the elastic rubber board of nut piece lower surface earlier with stamping die fixed plate upper surface contact down, along with nut piece downstream, the telescopic link further extrudees the spring to play the cushioning effect to last stamping die when just contacting the accessory, further prevent to touch the accessory and exert oneself suddenly and take place the offset and influence product quality.
Drawings
Fig. 1 is a perspective view of the present invention;
fig. 2 is a schematic side sectional view of the present invention;
fig. 3 is a schematic front sectional view of the present invention;
fig. 4 is a schematic cross-sectional structure of the present invention.
In the figure: 1. a device body; 2. a drive motor; 3. a conveyor belt fixing plate; 4. a discharge port; 5. a fitting groove; 6. a fitting collection box; 7. a conveyor belt; 8. an observation window; 9. a controller; 10. a drive motor; 11. a threaded rod; 12. a nut block; 13. an upper punch die fixing plate; 14. a rotating shaft; 15. a first pulley; 16. a belt; 17. an upper stamping die; 18. a second pulley; 19. an accessory; 20. a lower stamping die; 21. a lower punch press fixing plate; 22. a spring; 23. a sleeve; 24. an elastic rubber plate; 25. a telescopic rod; 26. a feed inlet; 27. and (6) conveying rollers.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the scope of the present invention based on the embodiments of the present invention.
In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Several embodiments of the present invention are presented. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1-4, the present invention provides a technical solution:
embodiment 1, please refer to fig. 1, 2, 3 and 4, a stamping apparatus for producing relay fittings comprises an apparatus body 1, a feeding port 26 is formed on an outer surface of one side of the apparatus body 1, a discharging port 4 is formed on a surface of the other side of the apparatus body 1, conveyor belt fixing plates 3 are fixedly connected to both sides of the discharging port 4 and the feeding port 26, two conveying rollers 27 are rotatably connected between the conveyor belt fixing plates 3 on both sides of the discharging port 4 and the feeding port 26, the two conveying rollers 27 are connected by a conveyor belt 7 in a transmission manner, fitting grooves 5 are formed on the surface of the conveyor belt 7 at equal intervals, fittings 19 are arranged in the fitting grooves 5, a transmission motor 10 is fixedly arranged on a surface of one side of the conveyor belt fixing plate 3 on one side of the feeding port 26, an output end of the transmission motor 10 is fixedly connected to the conveying roller 27 on one side of the feeding port 26, lower stamping die fixing plates 21 are fixedly connected to inner walls on both sides inside the apparatus body 1, two lower stamping die fixing plates 21 are arranged, a lower stamping die 20 is fixedly connected between the two lower stamping die fixing plates 21, a driving motor 2 is fixedly connected to the outer surface of a fixed part of the device body 1, the output end of the driving motor 2 is fixedly connected with a rotating shaft 14, the rotating shaft 14 penetrates through the top of the device body 1, and two first belt pulleys 15 are fixedly connected to the surface of the rotating shaft 14; threaded rods 11 are rotatably connected between the upper surface of the lower stamping die fixing plate 21 and the inner wall of the top of the device body 1, two threaded rods 11 are arranged, the two threaded rods 11 are respectively positioned at two sides of the rotating shaft 14, the upper end of each threaded rod 11 is fixedly connected with a second belt pulley 18, and a belt 16 is in transmission connection between the second belt pulley 18 and the first belt pulley 15; the upper thread of the threaded rod 11 is connected with a nut block 12, the lower surface of the nut block 12 is fixedly connected with an upper stamping die fixing plate 13, and the lower surface of the upper stamping die fixing plate 13 is fixedly connected with upper stamping dies 17 at equal intervals; placing a plurality of accessories 19 in an accessory groove 5 of a conveyor belt 7, starting a transmission motor 10 to rotate through a controller 9, further driving a conveying roller 27 at a feed inlet 26 to rotate through the rotation of the transmission motor 10, further driving the conveyor belt 7 to rotate, further driving the accessories 19 to slide on a lower stamping die 20 through the rotation of the conveyor belt 7, stopping the rotation of the transmission motor 10 when the accessories 19 slide right below an upper stamping die 17, simultaneously starting a driving motor 2 to rotate, further driving a rotating shaft 14 to rotate through the rotation of the driving motor 2, further driving a first belt pulley 15 to rotate through the rotation of the rotating shaft 14, further driving a second belt pulley 18 to rotate through a belt 16, further driving a threaded rod 11 to rotate through the rotation of the second belt pulley 18, further driving a nut block 12 to move downwards through the rotation of the threaded rod 11, further driving an upper stamping die fixing plate 13 and the upper stamping die 17 to move downwards through the downward movement of the nut block 12, further, the upper stamping die 17 is used for stamping the accessories 19, the transmission motor 10 is started to rotate, the next set of accessories 19 is processed, and when the processed accessories 19 move to the discharge port 4 along with the conveyor belt 7, the accessories fall into the accessory collection box 6 to be collected.
Embodiment 2, please refer to fig. 1, 2, 3 and 4, a stamping apparatus for producing relay fittings comprises an apparatus body 1, a feeding port 26 is formed on an outer surface of one side of the apparatus body 1, a discharging port 4 is formed on a surface of the other side of the apparatus body 1, conveyor belt fixing plates 3 are fixedly connected to both sides of the discharging port 4 and the feeding port 26, two conveying rollers 27 are rotatably connected between the conveyor belt fixing plates 3 on both sides of the discharging port 4 and the feeding port 26, the two conveying rollers 27 are connected by a conveyor belt 7 in a transmission manner, fitting grooves 5 are formed on the surface of the conveyor belt 7 at equal intervals, fittings 19 are arranged in the fitting grooves 5, a transmission motor 10 is fixedly arranged on a surface of one side of the conveyor belt fixing plate 3 on one side of the feeding port 26, an output end of the transmission motor 10 is fixedly connected to the conveying roller 27 on one side of the feeding port 26, lower stamping die fixing plates 21 are fixedly connected to inner walls on both sides inside the apparatus body 1, two lower stamping die fixing plates 21 are arranged, a lower stamping die 20 is fixedly connected between the two lower stamping die fixing plates 21, a driving motor 2 is fixedly connected to the outer surface of a fixed part of the device body 1, the output end of the driving motor 2 is fixedly connected with a rotating shaft 14, the rotating shaft 14 penetrates through the top of the device body 1, and two first belt pulleys 15 are fixedly connected to the surface of the rotating shaft 14; threaded rods 11 are rotatably connected between the upper surface of the lower stamping die fixing plate 21 and the inner wall of the top of the device body 1, two threaded rods 11 are arranged, the two threaded rods 11 are respectively positioned at two sides of the rotating shaft 14, the upper end of each threaded rod 11 is fixedly connected with a second belt pulley 18, and a belt 16 is in transmission connection between the second belt pulley 18 and the first belt pulley 15; the upper thread of the threaded rod 11 is connected with a nut block 12, the lower surface of the nut block 12 is fixedly connected with an upper stamping die fixing plate 13, and the lower surface of the upper stamping die fixing plate 13 is fixedly connected with upper stamping dies 17 at equal intervals; the lower surface of the nut block 12 is fixedly connected with four sleeves 23, the four sleeves 23 are respectively positioned at two sides of the two threaded rods 11, the top surface inside the sleeve 23 is fixedly connected with a spring 22, the lower end of the spring 22 is fixedly connected with a telescopic rod 25, and the lower end of the telescopic rod 25 is fixedly connected with an elastic rubber plate 24; in the downward movement process of the upper stamping die 17, the elastic rubber plate 24 on the lower surface of the nut block 12 is firstly contacted with the upper surface of the lower stamping die fixing plate 21, and along with the downward movement of the nut block 12, the telescopic rod 25 further extrudes the spring 22, so that the upper stamping die 17 is buffered when just contacting the fitting 19, and the influence on the product quality caused by the position deviation due to the sudden stress of the fitting 19 is further prevented.
The working principle is as follows: when the automatic stamping machine is used, a plurality of accessories 19 are placed in the accessory groove 5 of the conveying belt 7, the controller 9 starts the transmission motor 10 to rotate, the transmission motor 10 rotates to further drive the conveying roller 27 at the feed inlet 26 to rotate, the conveying belt 7 is further driven to rotate, the conveying belt 7 rotates to further drive the accessories 19 to slide on the lower stamping die 20, when the accessories 19 slide to the position right below the upper stamping die 17, the transmission motor 10 stops rotating, the driving motor 2 is started to rotate at the same time, the driving motor 2 rotates to further drive the rotating shaft 14 to rotate, the rotating shaft 14 rotates to further drive the first belt pulley 15 to rotate, the first belt pulley 15 rotates to further drive the second belt pulley 18 to rotate through the belt 16, the second belt pulley 18 rotates to further drive the threaded rod 11 to rotate, the threaded rod 11 rotates to further drive the nut block 12 to move downwards, the nut block 12 moves downwards to further drive the upper stamping die fixing plate 13 and the upper stamping die 17 to move downwards, further make upper punch die 17 carry out stamping process to accessory 19, restart drive motor 10 and rotate, process next set of accessory 19, when accessory 19 after the processing moves to discharge gate 4 along with conveyer belt 7, the accessory drops to and collects in accessory collecting box 6, in the downward motion process again of upper punch die 17, the elastic rubber plate 24 of nut piece 12 lower surface is preceding with lower punch die fixed plate 21 upper surface contact, along with nut piece 12 downstream, telescopic link 25 further extrudees spring 22, thereby play the cushioning effect to upper punch die 17 when just contacting accessory 19, further prevent to touch accessory 19 and receive the power suddenly and take place the position skew and influence product quality.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A stamping device for producing relay accessories, includes device body (1), its characterized in that: the device is characterized in that a feeding hole (26) is formed in the outer surface of one side of the device body (1), a discharging hole (4) is formed in the surface of the other side of the device body (1), conveyor belt fixing plates (3) are fixedly connected to the two sides of the discharging hole (4) and the feeding hole (26), conveying rollers (27) are rotatably connected between the conveyor belt fixing plates (3) on the two sides of the discharging hole (4) and the feeding hole (26), two conveying rollers (27) are arranged and connected through a conveyor belt (7) in a transmission mode, fitting grooves (5) are formed in the surface of the conveyor belt (7) at equal intervals, fittings (19) are arranged in the fitting grooves (5), a transmission motor (10) is fixedly arranged on the surface of one side of the conveyor belt fixing plate (3) on one side of the feeding hole (26), and the output end of the transmission motor (10) is fixedly connected with the conveying rollers (27) on one side of the feeding hole (26), equal fixedly connected with lower stamping die fixed plate (21) on the inside both sides inner wall of device body (1), lower stamping die fixed plate (21) are provided with two, two stamping die (20) under fixedly connected with between lower stamping die fixed plate (21), device body (1) portion external surface fixed connection has driving motor (2), driving motor (2) output end fixedly connected with pivot (14), pivot (14) run through device body (1) top, pivot (14) fixed surface is connected with two first belt pulleys (15).
2. The punching device for producing a relay fitting according to claim 1, wherein: lower stamping die fixed plate (21) upper surface and device body (1) top inner wall between swivelling joint have threaded rod (11), threaded rod (11) are provided with two, and two threaded rod (11) are located pivot (14) both sides respectively, threaded rod (11) upper end fixedly connected with second belt pulley (18), the transmission is connected with belt (16) between second belt pulley (18) and first belt pulley (15).
3. The punching apparatus for producing a relay fitting according to claim 2, wherein: threaded connection has nut piece (12) on threaded rod (11), nut piece (12) lower surface fixed connection has last stamping die fixed plate (13), stamping die (17) are gone up to equidistant fixed connection of stamping die fixed plate (13) lower surface.
4. The punching device for producing a relay fitting according to claim 3, wherein: fixed surface is connected with sleeve (23) under nut piece (12), sleeve (23) are provided with four, four sleeve (23) are located the both sides of two threaded rods (11) respectively, sleeve (23) inside top fixed surface is connected with spring (22), spring (22) lower extreme fixedly connected with telescopic link (25), telescopic link (25) lower extreme fixedly connected with elastic rubber board (24).
5. The punching device for producing a relay fitting according to claim 1, wherein: the device is characterized in that a controller (9) is fixedly connected to the outer surface of one side of the device body (1), and an observation window (8) is fixedly arranged on one side of the controller (9).
6. The punching device for producing a relay fitting according to claim 1, wherein: and a fitting collecting box (6) is arranged on the lower side of the discharge hole (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121403449.4U CN214919591U (en) | 2021-06-23 | 2021-06-23 | Stamping device for producing relay accessories |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121403449.4U CN214919591U (en) | 2021-06-23 | 2021-06-23 | Stamping device for producing relay accessories |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214919591U true CN214919591U (en) | 2021-11-30 |
Family
ID=79049906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121403449.4U Active CN214919591U (en) | 2021-06-23 | 2021-06-23 | Stamping device for producing relay accessories |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214919591U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114472646A (en) * | 2021-12-27 | 2022-05-13 | 昆山市固展金属有限公司 | High-safety sheet metal part production equipment and production method thereof |
| CN114833540A (en) * | 2022-04-13 | 2022-08-02 | 郑奇 | Automatic relay assembling system and assembling process |
-
2021
- 2021-06-23 CN CN202121403449.4U patent/CN214919591U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114472646A (en) * | 2021-12-27 | 2022-05-13 | 昆山市固展金属有限公司 | High-safety sheet metal part production equipment and production method thereof |
| CN114472646B (en) * | 2021-12-27 | 2023-11-14 | 昆山市固展金属有限公司 | High-safety sheet metal part production equipment and production method thereof |
| CN114833540A (en) * | 2022-04-13 | 2022-08-02 | 郑奇 | Automatic relay assembling system and assembling process |
| CN114833540B (en) * | 2022-04-13 | 2024-02-02 | 郑奇 | Automatic relay assembly system and assembly process |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN214919591U (en) | Stamping device for producing relay accessories | |
| CN101987339A (en) | Mechanical hand for stamping and automatic loading and unloading | |
| CN102581197A (en) | Feeding manipulator used for hot forging production line | |
| CN206325983U (en) | Fast ram device | |
| CN209953582U (en) | Synchronous continuous stamping equipment | |
| CN217570453U (en) | Continuous stamping die of magnetic pole piece | |
| CN201201152Y (en) | In-mold tapping machine | |
| CN102601285A (en) | Forging production line | |
| CN105645114B (en) | A kind of material code piles up machine | |
| CN218692920U (en) | Metal backboard multi-station punching machine for switch socket | |
| CN202447568U (en) | Pressure machine | |
| CN215392134U (en) | Bar copper ladder loading attachment | |
| CN102601283A (en) | Hot forging production line | |
| CN202447567U (en) | Hot forging production line | |
| CN215710471U (en) | Feeding and deviation rectifying mechanism for aluminum round raw material belt | |
| CN109365603A (en) | A kind of intelligent stamping equipment for plate | |
| CN214866774U (en) | Automatic conveying device in multi-station cold-punching die sheet metal working procedure piece die | |
| CN114632857A (en) | Automatic production line for stamping and forming of metal plates | |
| CN204606875U (en) | A kind of broad-adjustable conveyer chain and forming machine thereof | |
| CN112894268A (en) | Stamping method for sheet metal part of electric cabinet | |
| CN212976420U (en) | Hardware stamping device | |
| CN211965566U (en) | Automatic conveying equipment for stamping and stretching | |
| CN219233709U (en) | Vertical sterilizing cabinet case body shell stamping integrated machine | |
| CN216989504U (en) | Novel stamping die | |
| CN216175710U (en) | Flat fork punch forming clamp |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |