CN208323634U - A kind of three-stage independent power feeding device of numerical control Multi-row Multi-shaft drill - Google Patents
A kind of three-stage independent power feeding device of numerical control Multi-row Multi-shaft drill Download PDFInfo
- Publication number
- CN208323634U CN208323634U CN201820651341.9U CN201820651341U CN208323634U CN 208323634 U CN208323634 U CN 208323634U CN 201820651341 U CN201820651341 U CN 201820651341U CN 208323634 U CN208323634 U CN 208323634U
- Authority
- CN
- China
- Prior art keywords
- belt
- zone
- feed zone
- discharge zone
- independent power
- 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
Landscapes
- Sewing Machines And Sewing (AREA)
Abstract
The utility model discloses a kind of three-stage independent power feeding device of numerical control Multi-row Multi-shaft drill, includes two groups of three-stage independent power conveying separating devices of opposite side spacing arrangement;Every group of three-stage independent power conveying separating device includes the feed zone driving assembly, workspace driving assembly, discharge zone driving assembly being respectively independently arranged;Feed zone driving assembly includes feed zone belt and the feed zone driving motor for driving feed zone belt;Workspace driving assembly includes workspace belt and the workspace driving motor for driving workspace belt;Discharge zone driving assembly includes discharge zone belt and the discharge zone driving motor for driving discharge zone belt;Whereby, by the way that in feed zone, workspace and discharge zone, each independent motor driven of self installation shortens the processing waiting time between each machining area, so that the plate speed of service is faster, processing efficiency is higher.
Description
Technical field
The utility model relates to woodworking machinery field technology, the three-stage for referring in particular to a kind of numerical control Multi-row Multi-shaft drill is independent
Power feeding device.
Background technique
For the feeding device of current numerical control Multi-row Multi-shaft drill, structural stability is poor, and belt part is that integral type is defeated
Material mechanism, low efficiency, low precision, the speed of service are slow;Specifically, it at least has the disadvantage that or deficiency:
1, feed zone, workspace, the integral type belt conveying that discharge zone three is the driving of both ends single motor, therefore, charging
Area, workspace, discharge zone belt rotate and stop simultaneously, lead to that its speed is slow, low efficiency, substantially prolong two work and follow
The time slot of interannular.
2, belt lifting board ends in workspace are controlled by spring goes up and down, and works unstable, the speed of service is slow, is not easy to fill
Match, debug.
3, the traversing driving of shaking gear lead screw, too heavy, operation has some setbacks, and laborious, increases operation difficulty, drops
Low working efficiency.
4, when feeding and discharge, device is shaken greatly, unstable, influences the processing performance of machine.
Therefore, it is necessary to develop the new technical solution of one kind to solve the above problems.
Utility model content
In view of the existing deficiencies of the prior art, main purpose is to provide a kind of numerical control Multi-row Multi-shaft drill to the utility model
Three-stage independent power feeding device, by feed zone, workspace and discharge zone, each independent motor driven of self installation,
Shorten the processing waiting time between each machining area, so that the plate speed of service is faster, processing efficiency is higher.
To achieve the above object, the utility model is using following technical solution:
A kind of three-stage independent power feeding device of numerical control Multi-row Multi-shaft drill includes two group three of opposite side spacing arrangement
Segmentation independent power conveying separating device;Two groups of three-stage independent power conveying separating devices be collectively formed the feed zone being successively connected,
Workspace and discharge zone;Feed zone, workspace and discharge zone three are axial where being successively connected to be defined as first axis;
Every group of three-stage independent power conveying separating device includes the feed zone driving assembly being respectively independently arranged, work
Area's driving assembly, discharge zone driving assembly;The feed zone driving assembly includes feed zone belt and for driving feed zone
The feed zone driving motor of belt;The workspace driving assembly includes workspace belt and for driving workspace belt
Workspace driving motor;The discharge zone driving assembly includes discharge zone belt and the discharge zone for driving discharge zone belt
Driving motor;
The feed zone is formed between the feed zone belt of two groups of three-stage independent power conveying separating devices;The work
Area is formed between the workspace belt of two groups of three-stage independent power conveying separating devices;The discharge zone is formed in two groups three sections
Between the discharge zone belt of formula independent power conveying separating device.
As a preferred embodiment, in two groups of three-stage independent power conveying separating devices, one or both is all along the second axis
It is arranged to movable formula, described second is axially mutually perpendicular with first axis.
As a preferred embodiment, the first axis is horizontal longitudinal, and described second is axial for horizontal cross;Two group three
In segmentation independent power conveying separating device, one is mounted on the fixing end of rack, on another horizontal shifting seat for being mounted on rack,
Horizontal shifting seat with respect to rack fixing end can the installing of horizontal shifting formula, two groups of three-stage independent power conveying separating devices respectively lead to
The guide rail structure for crossing horizontal cross extension is installed with respect to rack Slidable.
As a preferred embodiment, at the workspace belt, it is provided with lifter plate, lifter plate is connected with lifting driving gas
Cylinder.
As a preferred embodiment, the workspace is provided with push rod and push rod cylinder, and push rod cylinder is drivingly connected in pushing away
Bar.
As a preferred embodiment, the push rod is connected with for the conveying elasticity dress to the horizontal and vertical positioning of workpiece
Set, conveying elastic device have can be rotated down formula service portion.
As a preferred embodiment, the feed zone driving motor is connected with feed zone belt pulley, the transmission of feed zone belt
It is connected between feed zone belt pulley and feed zone driven pulley;The support of feed zone belt is provided with below feed zone belt
Plate, feed zone driving motor are installed on feed zone fixed support plate, and feed zone belt support plate is connected to the fixed branch of feed zone
One end of fagging, the other end of feed zone fixed support plate are connected to one end of the fixed strut of feed zone, the fixed strut of feed zone
The other end be connected to one end of feed zone movable support rod, the other end of feed zone movable support rod is connected to feed zone belt
Support plate;The fixed strut of feed zone fixed support plate, feed zone, feed zone movable support rod and part feed zone belt support plate
Constitute triangular structure.
As a preferred embodiment, the feed zone belt pulley is located at one end close to workspace of feed zone.
As a preferred embodiment, the discharge zone driving motor is connected with discharge zone belt pulley, the transmission of discharge zone belt
It is connected between discharge zone belt pulley and discharge zone driven pulley;Belt support in discharge zone is provided with below the belt of discharge zone
Plate, discharge zone driving motor are installed on the fixed support plate of discharge zone, and discharge zone belt support plate is connected to the fixed branch in discharge zone
One end of fagging, the other end of discharge zone fixed support plate are connected to one end of the fixed strut in discharge zone, the fixed strut in discharge zone
The other end be connected to one end of discharge zone movable support rod, the other end of discharge zone movable support rod is connected to discharge zone belt
Support plate;Discharge zone fixed support plate, the fixed strut in discharge zone, discharge zone movable support rod and part discharge zone belt support plate
Constitute triangular structure.
As a preferred embodiment, the discharge zone belt pulley is located at one end close to workspace of discharge zone.
The utility model has clear advantage and beneficial effect compared with prior art, specifically, by above-mentioned technology
Known to scheme: it is mainly by the way that in feed zone, workspace and discharge zone, each independent motor driven of self installation shortens and respectively adds
The work interregional processing waiting time, so that the plate speed of service is faster, processing efficiency is higher;And overall construction design
It is reliable and stable, be conducive to improve conveying accuracy and processing district drilling quality.
For structure feature, technological means and its specific purposes achieved and function for more clearly illustrating the utility model
Can, the utility model is described in further detail with specific embodiment with reference to the accompanying drawing.
Detailed description of the invention
Fig. 1 is the overlooking structure diagram of the embodiment of the utility model;
Fig. 2 is the assembling schematic perspective view of the embodiment of the utility model;
Fig. 3 is the decomposition texture schematic diagram of the embodiment of the utility model.
Description of drawing identification:
1, feed zone 2, workspace
3, discharge zone 4, feed zone driving motor
5, workspace driving motor 6, discharge zone driving motor
7, feed zone belt 8, workspace belt
9, discharge zone belt 10, lifter plate
11, push rod 12, push rod cylinder
13, conveying elastic device 14, lifting driving cylinder
15, the fixed strut of feed zone fixed support plate 16, feed zone
17, feed zone movable support rod 18, discharging slide
19, slide 20, bridging board are fed
21, discharge zone fixed support plate 22, the fixed strut in discharge zone
23, discharge zone movable support rod.
Specific embodiment
It please refers to shown in Fig. 1-3, that show the specific structures of the preferred embodiment of the utility model.
A kind of three-stage independent power feeding device of numerical control Multi-row Multi-shaft drill includes two group three of opposite side spacing arrangement
Segmentation independent power conveying separating device;Preferably, two groups of three-stage independent power conveying packing are set to opposite side symmetrical expression arrangement.Two
The feed zone 1 being successively connected, workspace 2 and discharge zone 3 is collectively formed in group three-stage independent power conveying separating device;Feed zone 1,
Workspace 2 and 3 three of discharge zone are axial where being successively connected to be defined as first axis.
Every group of three-stage independent power conveying separating device includes the feed zone driving assembly being respectively independently arranged, work
Area's driving assembly, discharge zone driving assembly;The feed zone driving assembly includes feed zone belt 7 and for driving feed zone
The feed zone driving motor 4 of belt 7;The workspace driving assembly includes workspace belt 8 and for driving workspace skin
With 8 workspace driving motor 5;The discharge zone driving assembly includes discharge zone belt 9 and for driving discharge zone belt 9
Discharge zone driving motor 6.
The feed zone is formed between the feed zone belt 7 of two groups of three-stage independent power conveying separating devices;The work
Between the workspace belt 8 that area is formed in two groups of three-stage independent power conveying separating devices;The discharge zone is formed in two groups
Between the discharge zone belt 9 of three-stage independent power conveying separating device.
Under the driving of feed zone driving motor 4, workpiece starts to send on feed zone belt 7 along Fig. 1 horizontal arrow direction
Material operation;After workpiece enters workspace 2, under the driving of workspace driving motor 5, workpiece conveys fortune on workspace belt 8
Row;After workpiece enters discharge zone 3, under the driving of discharge zone driving motor 6, workpiece conveying on discharge zone belt 9 is run;This
Sample, feed zone belt 7, workspace belt 8,9 band of discharge zone skin are driven by three independent decelerating motors respectively, constitute three sections
Formula independence feed device, this conveying mode substantially reduce the processing waiting time between two continuous work circulations, very great Cheng
Improve production efficiency to degree.
In two groups of three-stage independent power conveying separating devices, one or both is all along the second axial movable formula setting, institute
Second is stated axially to be mutually perpendicular with first axis.Herein, specifically: the first axis be it is horizontal longitudinal, described the
Two is axial for horizontal cross;In two groups of three-stage independent power conveying separating devices, one is mounted on the fixing end of rack, Ling Yian
On the horizontal shifting seat of rack, horizontal shifting seat can the installing of horizontal shifting formula with respect to the fixing end of rack.Preferably, two groups
Three-stage independent power conveying separating device be in equipment it is symmetrical, this symmetrical two parts all can be along the four-headed arrow side Fig. 1
To sliding;It herein, is to be connect by slide with rack, this sliding type is lighter than previous shaking gear, lead screw driving,
It is more smooth, it is more labor-saving.
At the workspace belt 8, it is provided with lifter plate 10, lifter plate 10 is connected with lifting driving cylinder 14.The work
Make area 3 and is provided with push rod 11 and push rod cylinder 12,12 driving push rod 11 of push rod cylinder.The push rod 11 is connected with for workpiece
The conveying elastic device 13 of horizontal and vertical positioning, conveying elastic device 13 have can be rotated down formula service portion, herein, conveying
Elastic device 13 have can rotate adjustment effect above and below.After workpiece enters workspace 3, lifter plate 10 declines, push rod cylinder 12
Push push rod 11 to workpiece traffic direction horizontal movement.Both movements cooperate with machine, carry out perpendicular positioning with before to workpiece
End positioning, then carries out the horizontal drilling of two sides and the vertical drilling of bottom surface.After drilling processing, lifter plate 10 rises,
So that workspace belt 8 and discharge zone belt 9 is in same level, feeding output is carried out to workpiece.The lifting at both ends drives gas
Cylinder 14 controls the up and down motion of lifter plate 10, and than controlling lifting speed faster by the spring at both ends in the past, positioning is more accurate, and more
It is easily assembled debugging.During front end positions, mainly workpiece is pushed to move forwards by conveying elastic device 13.The conveying bullet
Property 13 one end of device is fixed on push rod 11, can small angle rotation.Lifter plate 10 declines, in workpiece downward movement, conveying bullet
Property device 13 contacted always with workpiece, make that workpiece front end horizontal location is synchronous with perpendicular positioning to be carried out, it is quasi- that processing can be greatlyd save
The standby time improves the production capacity supply of unit time.
The feed zone driving motor 4 is connected with feed zone belt pulley, the transmission connection of feed zone belt 7 in feed zone belt
Between wheel and feed zone driven pulley;Feed zone belt support plate, feed zone driving motor are provided with below feed zone belt 7
It being installed on feed zone fixed support plate 15, feed zone belt support plate is connected to one end of feed zone fixed support plate 15, into
The other end of material area's fixed support plate 15 is connected to one end of the fixed strut 16 of feed zone, the other end of the fixed strut 16 of feed zone
It is connected to one end of feed zone movable support rod 17, the other end of feed zone movable support rod 17 is connected to the support of feed zone belt
Plate;The fixed strut 16 of feed zone fixed support plate 15, feed zone, feed zone movable support rod 17 and the support of part feed zone belt
Plate constitutes triangular structure, in this way, forming stability structure.The feed zone belt pulley is located at the close workspace 2 of feed zone 1
One end.
Similarly, the discharge zone driving motor 6 is connected with discharge zone belt pulley, the transmission connection of discharge zone belt in discharging
Between area's belt pulley and discharge zone driven pulley;Discharge zone belt support plate is provided with below discharge zone belt 9, discharge zone is driven
Dynamic motor 6 is installed on discharge zone fixed support plate 21;Discharge zone belt support plate is connected to discharge zone fixed support plate 21
One end, the other end of discharge zone fixed support plate 21 are connected to one end of the fixed strut 22 in discharge zone, the fixed strut 22 in discharge zone
The other end be connected to one end of discharge zone movable support rod 23, the other end of discharge zone movable support rod 23 is connected to discharge zone
Belt support plate;Discharge zone fixed support plate 21, the fixed strut 22 in discharge zone, discharge zone movable support rod 23 and part discharge zone
Belt support plate constitutes triangular structure.The discharge zone belt pulley is located at one end close to workspace of discharge zone.
Triangular structure design at aforementioned two, primarily to during the material conveying process, stability is improved, to guarantee to bore
Hole precision and processing efficiency are avoided in this way since both ends belt fagging is too long, and when conveying being caused to run, what device shook
Phenomenon.Certainly, it is possible to further feed slide 19 in the connection of feed zone fixed support plate 15 one, in the fixed support in discharge zone
One discharging slide 18 of the connection of plate 21, feeds and connects bridging board 20 between slide 18 and the discharging slide 19 of same side.It is slided in charging
Guide rail is respectively set on seat 18, discharging slide 19, is assembled with guide rail adapted form and rack, in this way, reaching opposite rack can position
The installing of shifting formula, thus, adjust to freedom and flexibility the spacing between two groups of three-stage independent power conveying separating devices.
In conclusion the design focal point of the utility model is, mainly by feed zone, workspace and discharging
Area, each independent motor driven of self installation, shortens the processing waiting time between each machining area, so that the plate speed of service is more
Fastly, processing efficiency is higher;And overall construction design is reliable and stable, is conducive to improve conveying accuracy and processing district is bored
Hole quality.
The above descriptions are merely preferred embodiments of the present invention, not makees to the technical scope of the utility model
Any restrictions, therefore any trickle amendment made by the above technical examples according to the technical essence of the present invention, equivalent change
Change and modify, is still within the scope of the technical solutions of the present invention.
Claims (10)
1. a kind of three-stage independent power feeding device of numerical control Multi-row Multi-shaft drill, it is characterised in that: include opposite side spacing cloth
The two groups of three-stage independent power conveying separating devices set;Two groups of three-stage independent power conveying separating devices are collectively formed and are successively connected
Feed zone, workspace and discharge zone;Feed zone, workspace and discharge zone three are axial where being successively connected to be defined as first axle
To;
Every group of three-stage independent power conveying separating device includes the feed zone driving assembly being respectively independently arranged, workspace drive
Dynamic component, discharge zone driving assembly;The feed zone driving assembly includes feed zone belt and for driving feed zone belt
Feed zone driving motor;The workspace driving assembly includes workspace belt and the work for driving workspace belt
Area's driving motor;The discharge zone driving assembly includes discharge zone belt and for driving the discharge zone of discharge zone belt to drive
Motor;
The feed zone is formed between the feed zone belt of two groups of three-stage independent power conveying separating devices;The workspace shape
At between the workspace belt of two groups of three-stage independent power conveying separating devices;It is only that the discharge zone is formed in two groups of three-stage
Between the discharge zone belt of vertical power conveying separating device.
2. a kind of three-stage independent power feeding device of numerical control Multi-row Multi-shaft drill according to claim 1, feature exist
In: in two groups of three-stage independent power conveying separating devices, one or both is all arranged along the second axial movable formula, and described second
It is axial to be mutually perpendicular with first axis.
3. a kind of three-stage independent power feeding device of numerical control Multi-row Multi-shaft drill according to claim 2, feature exist
In: the first axis is horizontal longitudinal direction, and described second is axial for horizontal cross;Two groups of three-stage independent power conveying separating devices
In, one is mounted on the fixing end of rack, and on another horizontal shifting seat for being mounted on rack, horizontal shifting seat is consolidated with respect to rack
It fixed end can the installing of horizontal shifting formula;The guide rail knot that two groups of three-stage independent power conveying separating devices extend each by horizontal cross
Structure is installed with respect to rack Slidable.
4. a kind of three-stage independent power feeding device of numerical control Multi-row Multi-shaft drill according to claim 1, feature exist
In: at the workspace belt, it is provided with lifter plate, lifter plate is connected with lifting driving cylinder.
5. a kind of three-stage independent power feeding device of numerical control Multi-row Multi-shaft drill according to claim 4, feature exist
In: the workspace is provided with push rod and push rod cylinder, and push rod cylinder is drivingly connected in push rod.
6. a kind of three-stage independent power feeding device of numerical control Multi-row Multi-shaft drill according to claim 5, feature exist
It is connected in: the push rod for the conveying elastic device to the horizontal and vertical positioning of workpiece, conveying elastic device has can be to
Rotary service portion down.
7. a kind of three-stage independent power feeding device of numerical control Multi-row Multi-shaft drill according to claim 1, feature exist
In: the feed zone driving motor be connected with feed zone belt pulley, the transmission connection of feed zone belt in feed zone belt pulley with into
Expect between area's driven pulley;It is provided with feed zone belt support plate below feed zone belt, feed zone driving motor is installed on
On feed zone fixed support plate, feed zone belt support plate is connected to one end of feed zone fixed support plate, the fixed branch of feed zone
The other end of fagging is connected to one end of the fixed strut of feed zone, and the other end of the fixed strut of feed zone is connected to feed zone activity
One end of support rod, the other end of feed zone movable support rod are connected to feed zone belt support plate;Feed zone fixed support plate,
Feed zone fixes strut, feed zone movable support rod and part feed zone belt support plate and constitutes triangular structure.
8. a kind of three-stage independent power feeding device of numerical control Multi-row Multi-shaft drill according to claim 7, feature exist
In: the feed zone belt pulley is located at one end close to workspace of feed zone.
9. a kind of three-stage independent power feeding device of numerical control Multi-row Multi-shaft drill according to claim 1, feature exist
In: the discharge zone driving motor is connected with discharge zone belt pulley, the transmission connection of discharge zone belt in discharge zone belt pulley and goes out
Expect between area's driven pulley;It is provided with discharge zone belt support plate below the belt of discharge zone, discharge zone driving motor is installed on
On the fixed support plate of discharge zone, discharge zone belt support plate is connected to one end of discharge zone fixed support plate, the fixed branch in discharge zone
The other end of fagging is connected to one end of the fixed strut in discharge zone, and the other end of the fixed strut in discharge zone is connected to discharge zone activity
One end of support rod, the other end of discharge zone movable support rod are connected to discharge zone belt support plate;Discharge zone fixed support plate,
Discharge zone fixes strut, discharge zone movable support rod and part discharge zone belt support plate and constitutes triangular structure.
10. a kind of three-stage independent power feeding device of numerical control Multi-row Multi-shaft drill according to claim 9, feature exist
In: the discharge zone belt pulley is located at one end close to workspace of discharge zone.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201820651341.9U CN208323634U (en) | 2018-05-03 | 2018-05-03 | A kind of three-stage independent power feeding device of numerical control Multi-row Multi-shaft drill |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201820651341.9U CN208323634U (en) | 2018-05-03 | 2018-05-03 | A kind of three-stage independent power feeding device of numerical control Multi-row Multi-shaft drill |
Publications (1)
Publication Number | Publication Date |
---|---|
CN208323634U true CN208323634U (en) | 2019-01-04 |
Family
ID=64779926
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201820651341.9U Active CN208323634U (en) | 2018-05-03 | 2018-05-03 | A kind of three-stage independent power feeding device of numerical control Multi-row Multi-shaft drill |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN208323634U (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110653886A (en) * | 2019-10-23 | 2020-01-07 | 安徽信诺家具有限公司 | Full-automatic gang drill device |
CN112976177A (en) * | 2021-03-15 | 2021-06-18 | 南兴装备股份有限公司 | Intelligent gang drill processing production line |
-
2018
- 2018-05-03 CN CN201820651341.9U patent/CN208323634U/en active Active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110653886A (en) * | 2019-10-23 | 2020-01-07 | 安徽信诺家具有限公司 | Full-automatic gang drill device |
CN112976177A (en) * | 2021-03-15 | 2021-06-18 | 南兴装备股份有限公司 | Intelligent gang drill processing production line |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN202053316U (en) | Full-automatic multi-row and multi-shaft woodworking drilling machine with feeding system and discharging system | |
CN108393972B (en) | Numerical control multi-row multi-shaft drilling equipment | |
CN208323633U (en) | A kind of numerical control Multi-row Multi-shaft drill hole equipment | |
CN202539730U (en) | Electrospark wire-electrode cutting and punching combined machine tool | |
CN208323634U (en) | A kind of three-stage independent power feeding device of numerical control Multi-row Multi-shaft drill | |
CN102000911A (en) | Five-axis linkage laser processing machine | |
CN208743742U (en) | Bearing outer ring oil filler point automatic drilling machine | |
CN202192471U (en) | Servo control straight tool magazine | |
CN205020601U (en) | Lathe step by step takes shape | |
CN201677365U (en) | Reciprocating type automatic milling machine | |
CN206832138U (en) | A kind of drive mechanism of fireworks group basin machine material-pulling device | |
CN105149403A (en) | Incremental forming machine tool | |
CN210188843U (en) | Laser cutting machine with a plurality of laser cutting heads | |
CN106392678B (en) | It is a kind of can the mobile dual stage combination in series slide unit of double-speed | |
CN106425524B (en) | It is a kind of can more mobile combined type slide units of double-speed | |
CN208747065U (en) | A kind of pallet head sideward machine | |
CN208376105U (en) | A kind of positioning clamping plate feeding device | |
CN219114277U (en) | Integrated processing machine head for wood plate inclined hole, vertical hole groove and cutting | |
CN206241659U (en) | A kind of dual stage combination in series slide unit of triple speed movement | |
CN112692628A (en) | Movable beam type gantry machining center machine tool magazine | |
CN211495851U (en) | Device for conveying and overturning long workpiece assembly line in furniture industry | |
CN221018464U (en) | Spring machine | |
CN220427462U (en) | Multi-shaft cooperative automatic screw locking machine | |
CN113894321B (en) | Rolling type multi-station drilling machine for bearing production | |
CN207402114U (en) | A kind of binding post vehicle justifies blanking device |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant |