CN214442488U - Semi-automatic insert type wind wheel forming machine - Google Patents
Semi-automatic insert type wind wheel forming machine Download PDFInfo
- Publication number
- CN214442488U CN214442488U CN202022771214.2U CN202022771214U CN214442488U CN 214442488 U CN214442488 U CN 214442488U CN 202022771214 U CN202022771214 U CN 202022771214U CN 214442488 U CN214442488 U CN 214442488U
- Authority
- CN
- China
- Prior art keywords
- wind wheel
- riveting
- screw
- press
- wheel
- 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
- Wind Motors (AREA)
Abstract
A semi-automatic insert type wind wheel forming machine relates to the technical field of wind wheel forming processing equipment, and comprises a machine body, wherein the top of the machine body is provided with an upper platform and a lower platform according to a ladder shape, the upper platform is provided with an installation shaft wheel driven by a driving device to rotate and used for installing a wind wheel to be formed, a fixed disc driven by a lifting device to descend downwards to press and fix the wind wheel is arranged right above the installation shaft wheel, the lower platform is provided with a press riveting box, a first press riveting device and a second press riveting device used for riveting and fixing press sheets at the upper end and the lower end of a blade of the wind wheel are symmetrically arranged in the press riveting box, and a transmission device used for conveying the press riveting box left and right is arranged in the machine body, high quality and meeting the production requirement.
Description
Technical Field
The utility model relates to a wind wheel contour machining equipment technical field, concretely relates to semi-automatic inserted sheet formula wind wheel make-up machine.
Background
The wind wheel is in the field of electric power and energy science, means a wind machine component for converting wind energy into mechanical energy, and consists of a blade and a hub, and the wind wheel is widely applied and can be widely applied to electric power devices. The general structure of a wind wheel comprises: the wind wheel comprises an upper fixing ring, blades and a lower fixing ring/plate, wherein the blades are riveted between the upper fixing ring and the lower fixing ring/plate, the wind wheels manufactured by different manufacturers may have different sizes, and the specific structure of the wind wheel may have slight differences, but mainly adopts the structure. In the past, the traditional assembly is manually assembled, the manual assembly efficiency is low, the quality is poor, the production requirement cannot be met, and along with the development of automation, the manual work hopes to adopt the mode of automatic assembly to replace the manual work, and the assembly efficiency and the quality of the wind wheel are required to be improved.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an equipment of solving the wind wheel among the prior art is through artifical installation, artifical installation effectiveness low, the quality is poor, can not satisfy the technical defect of the demand of production.
For solving the technical problem, the utility model discloses the technical scheme who adopts does:
the top of the machine body is provided with an upper platform and a lower platform according to a ladder shape, the upper platform is provided with an installation shaft wheel driven by a driving device to rotate and used for installing a wind wheel to be molded, a fixed disc driven by a lifting device to descend to compress and fix the wind wheel is arranged right above the installation shaft wheel, a press riveting box is arranged on the lower platform, a first press riveting device and a second press riveting device which are used for riveting and fixing press sheets at the upper end and the lower end of a blade of the wind wheel are symmetrically arranged in the press riveting box, and a transmission device used for conveying the press riveting box left and right is arranged inside the machine body.
Further, a sleeve seat is installed below the installation shaft wheel, the bottom of the installation shaft wheel is connected with one end of a rotating shaft, the other end of the rotating shaft penetrates through the sleeve seat and is connected with the output end of a driving device, the driving device is a servo speed reduction motor, and the rotating shaft is connected with the sleeve seat through a bearing.
Furthermore, the lifting device comprises a support fixed on the upper platform, a lifting cylinder is fixed in the middle of the support, an output shaft of the lifting cylinder is vertically arranged downwards, and the output shaft of the lifting cylinder is connected with the fixed disc.
Further, press and rivet the incasement and vertically be equipped with the initiative pivot, the fixed first gear that is equipped with in the initiative pivot, press and rivet the incasement be provided with the driving motor that first gear engaged with is connected, the upper and lower both ends of initiative pivot respectively with a sprocket mechanism output connection, the sprocket mechanism drive first screw rod that is located the downside rotates, threaded connection has on the first screw rod second riveting device, the sprocket mechanism drive second screw rod that is located the upside rotates, threaded connection has on the second screw rod first riveting device, first screw rod and second screw rod about the initiative pivot is the axisymmetric structure, the screw thread opposite direction of first screw rod and second screw rod.
Furthermore, the structure of the first pressure riveting device is the same as that of the second pressure riveting device, the second pressure riveting device comprises a screw block in threaded connection with the first screw rod, the left side and the right side of the screw block are respectively connected with the first guide rod and are in sliding connection with the first guide rod, the first guide rod is vertically arranged in the riveting box, a pressing rod which is arranged in the horizontal direction penetrates through the screw block, a cylindrical pressing head is fixed at one end, close to the fixed disc, of the pressing rod, the peripheral wall of the pressing head can move to the edge position of the bottom of the wind wheel, and the pressing plate is fixed by pressure riveting.
Furthermore, the chain wheel mechanism comprises a second gear fixedly arranged on the lower portion of the driving rotating shaft and a third gear fixedly arranged on the lower portion of the first screw rod, and the second gear and the third gear are in meshing transmission through a chain.
Further, transmission device is in including the fixed setting of symmetry two transmission pieces of bottom of the case portion are riveted to the pressure, the transmission piece is connected and both are sliding connection with the second guide bar respectively, the bottom downwardly extending who rivets the case has the kicking block to the pressure, the level is equipped with the transmission cylinder in the organism, the delivery rod of transmission cylinder with kicking block fixed connection.
Furthermore, the ejector block is arranged between the two second guide rods, and the transmission cylinder is arranged in parallel with the second guide rods.
Further, the cover seat comprises a first mounting plate and a second mounting plate which are arranged from top to bottom, and the first mounting plate and the second mounting plate are fixedly connected through a plurality of mounting columns which are arranged in a surrounding mode.
Furthermore, the outer circumference of the pressure head is provided with a snap ring which is limited by the outer circumferential wall of the wind wheel.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model provides a semi-automatic inserted sheet formula wind wheel make-up machine, it is through being provided with on the organism by the rotatory installation arbor wheel that is used for installing the wind wheel of treating the shaping of drive arrangement drive, be provided with above the installation arbor wheel by elevating gear drive down to compress tightly fixed disk the wind wheel, when using, through with the wind wheel from the top down cover in the installation arbor wheel, when riveting, descend through the fixed disk and compress tightly the wind wheel on the installation arbor wheel, drive through the drive arrangement the wind wheel rotates, simultaneously through the transmission device with the first pressure rivet device and the second pressure rivet device transmission to the upper and lower both sides of wind wheel, thereby make the first pressure rivet device and the second pressure rivet device carry out the riveting to the preforming of wind wheel and compress tightly fixedly; the utility model discloses simple structure is compact, low in production cost carries out the riveting shaping to the wind wheel through semi-automatic mode, and the installation effectiveness is high, and the high quality satisfies the production demand.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the structure of FIG. 1 taken along the line A-A;
FIG. 3 is a schematic view of the structure in the direction B-B of FIG. 1;
FIG. 4 is a schematic structural view of the pressure riveting state of the present invention;
fig. 5 is a partially enlarged view of fig. 4.
In the figure: 1. the automatic riveting machine comprises a machine body, 11 parts of an upper platform, 12 parts of a lower platform, 2 parts of a mounting shaft wheel, 21 parts of a sleeve seat, 22 parts of a rotating shaft, 23 parts of a servo speed reduction motor, 24 parts of a mounting column, 25 parts of a first mounting plate, 26 parts of a second mounting plate, 3 parts of a wind wheel, 31 parts of a pressing sheet, 4 parts of a fixed disc, 41 parts of a lifting cylinder, 42 parts of an output shaft, 43 parts of a support, 5 parts of a riveting box, 51 parts of a driving rotating shaft, 52 parts of a first screw rod, 53 parts of a second screw rod, 54 parts of a second gear, 55 parts of a chain, 56 parts of a third gear, 6 parts of a first riveting device, 7 parts of a second riveting device, 71 parts of a screw block, 72 parts of a pressing rod, 73 parts of a pressing head, 731 parts of a clamping ring, 8 parts of a transmission device, 81 parts of a transmission cylinder, 82 parts of a transmission block, 83 parts of an output rod, 84 parts of a top block, and 85 parts of a second guide rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1-5, a semi-automatic insert type wind wheel forming machine comprises a machine body 1, wherein an upper platform 11 and a lower platform 12 are arranged at the top of the machine body 1 according to a ladder shape, an installation arbor wheel 2 driven by a driving device to rotate and used for installing a wind wheel 3 to be formed is arranged on the upper platform 11, a fixed disk 4 driven by a lifting device to descend for compressing and fixing the wind wheel 3 is arranged right above the installation arbor wheel 2, a pressure riveting box 5 is arranged on the lower platform 12, a first pressure riveting device 6 and a second pressure riveting device 7 used for riveting and fixing upper and lower end pressing sheets 31 of blades of the wind wheel 3 are symmetrically arranged in the pressure riveting box 5, and a transmission device 8 used for conveying the pressure riveting box 5 left and right is arranged in the machine body 1.
The utility model provides a semi-automatic inserted sheet formula wind wheel make-up machine, it is through being provided with on organism 1 by the rotatory installation arbor wheel 2 that is used for installing waiting to shape wind wheel 3 of drive arrangement drive, be provided with in installation arbor wheel 2 top by elevating gear drive down to compress tightly fixed disk 4 that wind wheel 3 compresses tightly fixedly, when using, through with the wind wheel from the top down cover in installation arbor wheel 2, when riveting, descend through fixed disk 4 and compress tightly the wind wheel on installation arbor wheel 2, drive through the drive arrangement the wind wheel rotates, simultaneously through transmission device with first rivet-pressing device 6 and second rivet-pressing device 7 transmit to the upper and lower both sides of wind wheel, thereby make first rivet-pressing device 6 and second rivet-pressing device 7 rivet-pressing the preforming 31 of wind wheel 3 to carry out the riveting and compress tightly fixedly; the utility model discloses simple structure is compact, low in production cost carries out the riveting shaping to the wind wheel through semi-automatic mode, and the installation effectiveness is high, and the high quality satisfies the production demand.
Specifically, as shown in the figure, sleeve seat 21 is installed to installation arbor wheel 2 below, the bottom and the pivot 22 one end of installation arbor wheel 2 are connected, and the pivot 22 other end passes sleeve seat 21 is connected with the drive arrangement output, drive arrangement is servo gear motor 23, pivot 22 with sleeve seat 21 passes through the bearing and connects. The servo speed reducing motor 23 is arranged to control the mounting shaft wheel 2 to rotate, so that the wind wheel is driven to rotate, and the first pressure riveting device 6 and the second pressure riveting device 7 are matched to form riveting and pressing.
Specifically, as shown in the figure, the lifting device includes a bracket 43 fixed on the upper platform 11, a lifting cylinder 41 is fixed in the middle of the bracket 43, an output shaft 42 of the lifting cylinder 41 is vertically arranged downwards, and the output shaft 42 of the lifting cylinder 41 is connected with the fixed disk 4. When the wind wheel pressing device is used specifically, the lifting cylinder 41 is started to drive the output shaft 42 of the lifting cylinder to move downwards, so that the fixed disc 4 of the lifting cylinder is driven to move downwards, and the wind wheel is pressed and fixed.
Specifically, as shown in the figure, a driving rotating shaft 51 is vertically arranged in the pressure riveting box 5, a first gear is fixedly arranged on the driving rotating shaft 51, a driving motor meshed with the first gear is arranged in the pressure riveting box 5, the upper end and the lower end of the driving rotating shaft 51 are respectively connected with a sprocket mechanism output, a sprocket mechanism located on the lower side drives a first screw 52 to rotate, the first screw 52 is in threaded connection with a second riveting device 7, a sprocket mechanism located on the upper side drives a second screw 53 to rotate, the second screw 53 is in threaded connection with a first riveting device 6, the first screw 52 and the second screw 53 are in an axial symmetry structure relative to the driving rotating shaft 51, and the thread directions of the first screw 52 and the second screw 53 are opposite. When the wind wheel riveting device is used specifically, the driving rotating shaft drives the first screw rod 52 and the second screw rod 53 to rotate through the chain wheel mechanism, so that the first riveting device 6 and the second riveting device 3 are driven to lift up and down relatively, and loosening and clamping operations are formed on the wind wheel 3.
Specifically, as shown in the figure, the first pressure riveting device 6 and the second pressure riveting device 7 have the same structure, the second pressure riveting device 7 includes a screw block 71 in threaded connection with the first screw 52, the left and right sides of the screw block 71 are respectively connected with the first guide rod 57 and are in sliding connection with the first guide rod 57, the first guide rod 57 is vertically arranged in the pressure riveting box 5, a pressing rod 72 arranged in the horizontal direction penetrates through and is fixed on the screw block 71, a cylindrical pressing head 73 is fixed at one end of the pressing rod 72 close to the fixed disk 4, the peripheral wall of the pressing head 73 can move to the edge position of the bottom of the wind wheel 3, and the pressing plate 31 is pressed and riveted and fixed. It should be noted that the pressure head 73 is rotatably connected to the pressure lever 72, when in specific use, the first screw 52 and the second screw 53 drive the screw block to move up and down, so as to drive the pressure head 73 to move up and down, so that the outer circumferential surface of the pressure head 73 is abutted against the upper surface of the wind wheel 3, when the wind wheel rotates, the pressure head 73 forms riveting pressing molding on the pressing piece 31, when the wind wheel rotates for one turn, riveting pressing is completed on the pressing piece 31 above, and a worker can reversely operate to take out the wind wheel.
Specifically, as shown in the figure, the sprocket mechanism includes a second gear 54 fixedly disposed at a lower portion of the driving rotation shaft 51, and a third gear 56 fixedly disposed at a lower portion of the first screw 52, and the second gear 54 and the third gear 56 are in meshing transmission through a chain 55.
Specifically, as shown in the figure, the transmission device 8 includes that the symmetry is fixed to be set up two transmission blocks 82 of case 5 bottom are riveted to the pressure, transmission block 82 is connected and both are sliding connection with second guide bar 85 respectively, the bottom downwardly extending who rivets case 5 has kicking block 84, the horizontal transmission cylinder 81 that is equipped with in the organism 1, transmission cylinder 81's output pole 83 with kicking block 84 fixed connection. When the device is used specifically, the output rod 83 of the transmission cylinder 81 is used for ejecting, so that the ejector block 84 is driven to move in the direction of the second guide rod 85, and the pressure head 73 is driven to move.
Specifically, as shown in the figure, the top block 84 is disposed between two second guide rods 85, and the transmission cylinder 81 is disposed in parallel with the second guide rods 85.
Specifically, as shown in the figure, the sleeve seat 21 includes a first mounting plate 25 and a second mounting plate 26 which are arranged up and down, and the first mounting plate 25 and the second mounting plate 26 are fixedly connected through a plurality of mounting posts 24 which are arranged around.
Specifically, as shown in the figure, a snap ring 731 which is limited with the outer peripheral wall of the wind wheel 3 is arranged on the outer circumference of the pressure head 73. The protruding length of the pressure head 73 is limited by providing a snap ring 731, and the contact of the snap ring 731 with the outer peripheral wall of the wind wheel 3 is the maximum stroke of the pressure head 73.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. A semi-automatic insert type wind wheel forming machine comprises a machine body (1), wherein the top of the machine body (1) is provided with an upper platform (11) and a lower platform (12) according to a step shape, it is characterized in that the upper platform (11) is provided with a mounting shaft wheel (2) which is driven by a driving device to rotate and is used for mounting the wind wheel (3) to be molded, a fixed disc (4) driven by a lifting device to descend and compress and fix the wind wheel (3) is arranged right above the mounting shaft wheel (2), a press riveting box (5) is arranged on the lower platform (12), a first press riveting device (6) and a second press riveting device (7) for performing press riveting and fixing on press sheets (31) at the upper end and the lower end of a blade of the wind wheel (3) are symmetrically arranged in the press riveting box (5), and a transmission device (8) for conveying the riveting box (5) left and right is arranged in the machine body (1).
2. The machine according to claim 1, characterized in that a sleeve seat (21) is installed below the installation arbor wheel (2), the bottom of the installation arbor wheel (2) is connected with one end of a rotating shaft (22), the other end of the rotating shaft (22) penetrates through the sleeve seat (21) to be connected with the output end of a driving device, the driving device is a servo speed reduction motor (23), and the rotating shaft (22) is connected with the sleeve seat (21) through a bearing.
3. The machine according to claim 2, wherein the lifting device comprises a bracket (43) fixed on the upper platform (11), a lifting cylinder (41) is fixed in the middle of the bracket (43), an output shaft (42) of the lifting cylinder (41) is vertically arranged downwards, and the output shaft (42) of the lifting cylinder (41) is connected with the fixed disk (4).
4. The semi-automatic insert type wind wheel forming machine according to claim 3, wherein a driving rotating shaft (51) is vertically arranged in the pressure riveting box (5), a first gear is fixedly arranged on the driving rotating shaft (51), a driving motor meshed with the first gear is arranged in the pressure riveting box (5), the upper end and the lower end of the driving rotating shaft (51) are respectively connected with a chain wheel mechanism in an output manner, the chain wheel mechanism at the lower side drives the first screw rod (52) to rotate, the second pressure riveting device (7) is in threaded connection with the first screw rod (52), the chain wheel mechanism at the upper side drives the second screw rod (53) to rotate, the first pressure riveting device (6) is in threaded connection with the second screw rod (53), and the first screw rod (52) and the second screw rod (53) are in an axial symmetry structure with respect to the driving rotating shaft (51), the first screw (52) and the second screw (53) have opposite thread directions.
5. The machine according to claim 4, wherein the first riveting device (6) and the second riveting device (7) have the same structure, the second riveting device (7) comprises a screw block (71) in threaded connection with the first screw (52), the left side and the right side of the screw block (71) are respectively connected with a first guide rod (57) and are in sliding connection with each other, the first guide rod (57) is vertically arranged in the riveting box (5), a pressing rod (72) arranged in the horizontal direction penetrates through and is fixed on the screw block (71), a cylindrical pressing head (73) is fixed at one end of the pressing rod (72) close to the fixed disk (4), and the peripheral wall of the pressing head (73) can move to the bottom edge position of the wind wheel (3) to press and fix the pressing plate (31).
6. A semi-automatic insert blade type wind wheel forming machine according to claim 5, characterized in that the chain wheel mechanism comprises a second gear (54) fixedly arranged at the lower part of the driving rotating shaft (51) and a third gear (56) fixedly arranged at the lower part of the first screw rod (52), and the second gear (54) and the third gear (56) are in meshing transmission through a chain (55).
7. The machine according to claim 5, wherein the transmission device (8) comprises two transmission blocks (82) symmetrically and fixedly arranged at the bottom of the rivet pressing box (5), the transmission blocks (82) are respectively connected with a second guide rod (85) and are in sliding connection with the second guide rod, a top block (84) extends downwards from the bottom of the rivet pressing box (5), a transmission cylinder (81) is horizontally arranged in the machine body (1), and an output rod (83) of the transmission cylinder (81) is fixedly connected with the top block (84).
8. A semi-automatic blade-inserting wind wheel forming machine according to claim 7, characterized in that the top block (84) is arranged between two second guide bars (85), and the transmission cylinder (81) is arranged in parallel with the second guide bars (85).
9. The machine according to claim 2, wherein the sleeve base (21) comprises a first mounting plate (25) and a second mounting plate (26) which are arranged up and down, and the first mounting plate (25) and the second mounting plate (26) are fixedly connected through a plurality of mounting columns (24) which are arranged in a surrounding manner.
10. The machine according to claim 5, characterized in that the outer circumference of the pressure head (73) is provided with a snap ring (731) for limiting the outer circumference of the wind wheel (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022771214.2U CN214442488U (en) | 2020-11-26 | 2020-11-26 | Semi-automatic insert type wind wheel forming machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022771214.2U CN214442488U (en) | 2020-11-26 | 2020-11-26 | Semi-automatic insert type wind wheel forming machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214442488U true CN214442488U (en) | 2021-10-22 |
Family
ID=78184468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022771214.2U Active CN214442488U (en) | 2020-11-26 | 2020-11-26 | Semi-automatic insert type wind wheel forming machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214442488U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117102379A (en) * | 2023-10-19 | 2023-11-24 | 杭州顿力风机有限公司 | Spinning riveting equipment of centrifugal wind wheel |
-
2020
- 2020-11-26 CN CN202022771214.2U patent/CN214442488U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117102379A (en) * | 2023-10-19 | 2023-11-24 | 杭州顿力风机有限公司 | Spinning riveting equipment of centrifugal wind wheel |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102069383B (en) | Shaping system for integrally cutting, crimping and pressing edge | |
| CN215516585U (en) | Duplex position test tube is uncapping machine in batches | |
| CN210938033U (en) | Novel servo end cover press | |
| CN214442488U (en) | Semi-automatic insert type wind wheel forming machine | |
| CN212350019U (en) | Punching machine with safety structure | |
| CN116274518A (en) | One-step forming equipment for bending and corner cutting of signal disc frame and forming method thereof | |
| CN115464048A (en) | Die for common-mode production of stator and rotor punching sheets | |
| CN111889606A (en) | Precision forging die for driving gear | |
| CN201565775U (en) | Integrated shaping machine for cutting edges, curling edges and pressing edges | |
| CN210501545U (en) | Transmission device of servo punch press | |
| CN115781810B (en) | Noise-isolation portable punching and cutting integrated machine for LED display | |
| CN211219609U (en) | Motor shaft combined machining device | |
| CN217393907U (en) | Cutting device for preventing color steel plate from deforming | |
| CN214024397U (en) | Thermistor assembly fixture of motor end cover | |
| CN210969131U (en) | Plastic gasket punching press discharging device | |
| CN108435912B (en) | Cylindrical helical gear twisting and pressing forming die and forming method thereof | |
| CN218638430U (en) | Automobile panel punching press is with pressing material core | |
| CN201271684Y (en) | Shaping apparatus for bucket lid | |
| CN205124885U (en) | Deep machine is used in processing of animal bone | |
| CN2564280Y (en) | Punching and threading machine | |
| CN215508538U (en) | Numerical control punch press for sheet metal machining | |
| CN220444834U (en) | Efficient punching machine for oil tank production | |
| CN217599973U (en) | Sheet rolling machine | |
| CN218283624U (en) | Rivet production is with cutting device of cold-heading equipment | |
| CN214866476U (en) | Stamping die is used in pedal shell processing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |