CN209256113U - Cutting nozzles, laser cutting component and laser cutting device - Google Patents
Cutting nozzles, laser cutting component and laser cutting device Download PDFInfo
- Publication number
- CN209256113U CN209256113U CN201822050418.XU CN201822050418U CN209256113U CN 209256113 U CN209256113 U CN 209256113U CN 201822050418 U CN201822050418 U CN 201822050418U CN 209256113 U CN209256113 U CN 209256113U
- Authority
- CN
- China
- Prior art keywords
- channel
- cutting
- passage
- laser cutting
- face
- 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
Abstract
The utility model relates to the technical fields of laser cutting, a kind of cutting nozzles, laser cutting component and laser cutting device are provided, cutting nozzles include nozzle body and the airflow channel that is formed in inside nozzle body, and airflow channel runs through the first face and the second face of nozzle body；Airflow channel includes first passage in a circular table shape and cylindrical second channel, the air inlet of first passage is located at the first face, the exhaust outlet of first passage and the air inlet of second channel are connected and the diameter of outlet size of first passage is identical as the air inlet diameter size of second channel, the exhaust outlet of second channel is located at the second face, and the air inlet diameter size of first passage is greater than the diameter of outlet size of second channel；The cutting nozzles structure setting is reasonable, avoids and forms ripple in product cut place, cut quality is preferable, effectively improves product cut quality；Meanwhile cutting speed raising can reduce gas usage amount, that is, reduce cutting cost, improve production efficiency.
Description
Technical field
The utility model relates to the technical fields of laser cutting, specifically, being to be related to a kind of cutting nozzles including this is cut
The laser cutting component and the laser cutting device including the laser cutting component for cutting nozzle.
Background technique
Laser cutting, by cutting material, makes material be heated to vaporization temperature quickly using the irradiation of high power density laser beam
Degree, evaporation form hole, and the movement with light beam to material, hole is formed continuously the joint-cutting of narrower in width, complete to material
Cutting；As a kind of emerging processing method, have many advantages, such as: if machinable material ranges are wide, toughness material and crisp
Property the available laser cutting of material；Narrow (0.1mm~the 1.0mm of joint-cutting；Cutting speed is high；It is small etc. by cutting part thermal damage.
The shape that one of key factor of Quality of Laser Cutting is nozzle in laser cutting head is influenced, currently, laser is cut
The nozzle of tapping easily forms ripple in product cut place, and cut quality is poor, and cutting speed is slow, and production efficiency is low.
Utility model content
The purpose of this utility model is to provide a kind of cutting nozzles, laser cutting component and laser cutting devices, it is intended to
It solves in the prior art since nozzle arrangements setting is unreasonable, caused Quality of Laser Cutting is poor, cutting speed is slow and production effect
The low technical problem of rate.
For this purpose, the technical solution adopted in the utility model is:
A kind of cutting nozzles are provided, it is described including nozzle body and the airflow channel being formed in inside the nozzle body
Nozzle body has opposite the first face and the second face, and the airflow channel runs through first face and second face；It is described
Airflow channel includes first passage in a circular table shape and cylindrical second channel, and the air inlet of the first passage is located at institute
The first face is stated, the exhaust outlet of the first passage is connected with the air inlet of the second channel and the exhaust of the first passage
Mouth diameter dimension is identical as the air inlet diameter size of the second channel, and the exhaust outlet of the second channel is located at described second
Face, the air inlet diameter size of the first passage are greater than the diameter of outlet size of the second channel.
Further, the cross-sectional diameter of the second channel is having a size of 0.6mm~6mm.
Further, the nozzle body has the interconnecting piece for being enclosed the first passage with setting described
Threaded portion on interconnecting piece.
Further, the threaded portion is the external screw thread being formed in the interconnecting piece peripheral outer wall.
Simultaneously a kind of laser cutting component is provided, including be set in sequence and connect sensor module, insulating ceramics ring and
Above-mentioned cutting nozzles, the sensor module is to detect the spacing between the cutting nozzles and cutter member to be cut.
Further, the sensor module includes sensor main body, interface module and probe, the sensor main body
Including hollow sensor outer housing and the wiring board for being built in the sensor outer housing, the interface module and probe difference
With the circuit board electrical connection, the insulating ceramics ring is equipped with stainless steel sleeve and copper needle, the cutting nozzles, the stainless steel
Set, the copper needle and the probe successively electrically conduct.
Further, the laser cutting component further includes for connecting the insulating ceramics ring and the sensor outer housing
Retaining ring.
Further, at least one screw lock hole is formed on the sensor outer housing.
Further, the insulating ceramics ring is equipped with thread fiting part corresponding with the threaded portion.
The beneficial effect of cutting nozzles provided by the utility model is: it is compared with the prior art, the utility model proposes
A kind of cutting nozzles, including nozzle body and airflow channel, wherein airflow channel includes first passage in a circular table shape and is in
Columned second channel, the exhaust outlet by being set as first passage is connected with the air inlet of second channel and first passage
Diameter of outlet size it is identical as the air inlet diameter size of second channel, and the air inlet diameter size of first passage is greater than
The diameter of outlet size of second channel, so that it is substantially in a cone structure that airflow channel is whole, and entire airflow channel has
One columned grate flow channel, when carrying out laser cutting process using the cutting nozzles, when gas is discharged via second channel
Flow velocity is very fast and air-flow is buffered by the second channel, avoids and forms ripple in product cut place, and cut quality is preferable,
Effectively improve product cut quality；Meanwhile cutting speed raising can reduce gas usage amount, that is, reduce cutting cost, mention
High production efficiency.
Nozzle provided by the utility model is single layer nozzle, is mainly used for cutting stainless steel.
The beneficial effect of laser cutting component provided by the utility model is: being compared with the prior art, the utility model
A kind of laser cutting component proposed, including the sensor module, insulating ceramics ring and above-mentioned cutting for being set in sequence and connecting
Nozzle, when cutting nozzles are when machine tool motion is cut, sensor module can be by between detection cutting nozzles and cutter member to be cut
Spacing, and then it is changed into capacitance change, the equipment such as amplifier and Height-adjusting device are reached by circuit, it is final to realize cutting nozzles etc.
Thickness cuts cutter member to be cut, effectively improves the cutting quality on cutter member surface to be cut.
The beneficial effect of laser cutting device provided by the utility model is: being compared with the prior art, the utility model
A kind of laser cutting device proposed is cut including above-mentioned laser cutting component by the laser cutting device, product cutting
Quality is higher, cut place non-ripple, and cutting thickness is impartial；Meanwhile cutting cost is lower, high production efficiency.
Detailed description of the invention
It, below will be to embodiment or the prior art in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing needed in description is briefly described, it should be apparent that, the accompanying drawings in the following description is only that this is practical new
Some embodiments of type for those of ordinary skill in the art without any creative labor, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the stereoscopic schematic diagram of laser cutting component provided by the embodiment of the utility model；
Fig. 2 is the decomposition diagram of laser cutting component provided by the embodiment of the utility model；
Fig. 3 is the sectional view of cutting nozzles provided by the embodiment of the utility model.
Wherein, each appended drawing reference in figure:
1: cutting nozzles 11: nozzle body
10: the 11a: the first face of airflow channel
11b: the second face 101: first passage
102: second channel 101a: the air inlet of first passage
101b: the exhaust outlet 102a: the air inlet of second channel of first passage
102b: the exhaust outlet 12 of second channel: interconnecting piece
13: threaded portion
2: laser cutting component 21: sensor module
22: insulating ceramics ring 211: sensor main body
212: interface module 213: probe
210: sensor outer housing 23: retaining ring
200: screw lock hole
Specific embodiment
The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, it is intended to for explaining the utility model, and should not be understood as to the utility model
Limitation.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more of the features.
It is to be appreciated that the orientation or positional relationship of the instructions such as term " on ", "lower", "top", "bottom", "inner", "outside"
To be based on the orientation or positional relationship shown in the drawings, it is merely for convenience of describing the present invention and simplifying the description, without referring to
Show or imply that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot manage
Solution is limitations of the present invention.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. terms shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be
Mechanical connection, is also possible to be electrically connected；It can be directly connected, two can also be can be indirectly connected through an intermediary
The interaction relationship of connection or two elements inside element.It for the ordinary skill in the art, can basis
Concrete condition understands the concrete meaning of above-mentioned term in the present invention.
It as shown in Figure 1 to Figure 3, is a preferred embodiment provided by the utility model.
A kind of cutting nozzles 1 provided in this embodiment, the cutting nozzles 1 can be the all-purpose nozzle of standard specification, can also be
Applied to the specific nozzle on specific laser cutting device；The cutting nozzles 1 include nozzle body 11 and airflow channel 10, air-flow
Channel 10 is formed in the inside of nozzle body 11, and specifically, nozzle body 11 has opposite the first face 11a and the second face 11b,
Preferably, the first face 11a and the second face 11b are parallel to each other, and airflow channel 10 runs through the first face 11a and the second face 11b；Air-flow
Channel 10 includes first passage 101 in a circular table shape and cylindrical second channel 102, and the height of first passage 101 can be big
It is located at the first face 11a, the exhaust outlet of first passage 101 in the air inlet 101a of the height of second channel 102, first passage 101
101b is connected with the air inlet 102a of second channel 102 and the exhaust outlet 101b diameter dimension of first passage 101 and second leads to
The air inlet 102a diameter dimension in road 102 is identical, and the exhaust outlet 102b of second channel 102 is located at the second face 11b, first passage
101 air inlet 101a diameter dimension is greater than the exhaust outlet 102b diameter dimension of second channel 102；That is the entire airflow channel 10
Air inlet 101a area size be greater than airflow channel 10 exhaust outlet 102b area size, at this point, the air inlet of first passage 101
Mouthful 101a, the exhaust outlet 101b of first passage 101, the air inlet 102a of second channel 102, second channel 102 exhaust outlet
102b can be not limited to circle, can also be rectangular, oval or triangle etc., guarantee opening for the air inlet 101a of airflow channel 10
Open area is greater than the opening area of the exhaust outlet 102b of airflow channel 10；In the present embodiment, further, entire air-flow
The air inlet 101a diameter dimension in channel 10 is greater than the exhaust outlet 102b diameter dimension of airflow channel 10, which makes air-flow logical
Whole road 10 is substantially in a cone structure, and entire airflow channel 10 has a columned grate flow channel (second channel 102),
When carrying out laser cutting process using the cutting nozzles 1, flow velocity is very fast when gas is discharged via second channel 102 and air-flow passes through
It crosses the second channel 102 to be buffered, avoids and form ripple in product cut place, cut quality is preferable, effectively improves production
Product cut quality；Meanwhile cutting speed raising can reduce gas usage amount, that is, reduce cutting cost, improve production efficiency.
In one embodiment of the utility model, optionally, the cross-sectional diameter of second channel 102 having a size of but not office
Be limited to 0.6mm~6mm, preferably 0.6mm, 0.8mm, 1.0mm, 1.2mm, 1.5mm, 1.8mm, 2.0mm, 2.2mm, 2.5mm,
2.8mm、3.0mm、3.2mm、3.5mm、3.8mm、4.0mm、4.2mm、4.5mm、4.8mm、5.0mm、5.2mm、5.5mm、5.8mm
And 6.0mm etc.；Dimensions above specification makes air-flow via being buffered after second channel 102, avoids and cuts in product
Place forms ripple, and cut quality is preferable, and gas flow rate is very fast, so that cutting speed improves, effectively improves production efficiency.
In one embodiment of the utility model, lead to referring to Fig. 3, nozzle body 11 has for being enclosed first
The interconnecting piece 12 in road 101 and the threaded portion 13 being arranged on interconnecting piece 12；Further, please continue to refer to Fig. 3, threaded portion 13 is
The external screw thread being formed in 12 peripheral outer wall of interconnecting piece, the external screw thread specification are screw pitch M11x 0.75；The structure can be in high pressure gas
Body pass through nozzle body 11 when guarantee nozzle body 11 be stably connected in laser cutting device other component (such as ceramics
Ring) on, the structural stability of laser cutting device is on the one hand improved, on the other hand, the stability of laser cutting is strengthened, keeps away
Exempted to shake due to nozzle body 11 it is not firm occur that cutter member to be cut is impaired, problem of cut quality difference, product cut quality is good.
It should be noted that the threaded portion 13 being arranged on interconnecting piece 12 also can be to be formed in 12 inner circumferential wall of interconnecting piece
Internal screw thread in (101 inner circumferential wall of first passage), the structure can equally reinforce the structural stability of nozzle body 11.
Cutting nozzles 1 provided by the utility model are single layer nozzle, are mainly used for cutting stainless steel, cutting steam is nitrogen
Gas.
A kind of laser cutting component 2 provided in this embodiment, also referring to Fig. 1 and Fig. 2, including is set in sequence and connects
Sensor module 21, insulating ceramics ring 22 and above-mentioned cutting nozzles 1, sensor module 21 to detect cutting nozzles 1 with
Spacing between cutter member to be cut；Further, sensor module 21 includes sensor main body 211, interface module 212 and probe
213, sensor main body 211 includes hollow sensor outer housing 210 and the wiring board for being built in sensor outer housing 210, interface group
Part 212 and probe 213 respectively with circuit board electrical connection；Preferably, interface module 212 and probe 213 are arranged at outside sensor
On shell 210, probe 213 can be lock onto inside sensor outer housing 210, and interface module 212 can be fixed on by fasteners such as screws
The avoid holes being pierced by for interface module 212 by inside can be formed on sensor outer housing 210, while on sensor outer housing 210 (to scheme not
Show)；Insulating ceramics ring 22 is equipped with stainless steel sleeve and copper needle, and cutting nozzles 1, stainless steel sleeve, copper needle and probe 213 are successively electric
Property conducting；Wherein, copper needle and probe 213 can be supported mutually to realize and conduct；When cutting nozzles 1 machine tool motion cut when,
Sensor module 21 can be by the spacing between detection cutting nozzles 1 and cutter member to be cut, and then is changed into capacitance change, passes through
Circuit reaches the equipment such as amplifier and Height-adjusting device, final to realize that 1 equal thickness of cutting nozzles cuts cutter member to be cut, effectively improves
The cutting quality on cutter member surface to be cut；The structure setting compact and reasonable, small in size, space occupancy is low, is easy to use and arranges
On lathe, by using sensor module 21, it ensure that 1 equal thickness of cutting nozzles cuts cutter member to be cut, avoid because to be cut
Plate itself, which is uneven, causes cut quality poor, and practicability and utilization rate are high.
Further, please continue to refer to Fig. 1 and Fig. 2, being cut by laser component 2 further includes for connecting 22 He of insulating ceramics ring
The retaining ring 23 of sensor outer housing 210, settable internal screw thread on the inner wall of retaining ring 23, to lock 22 He of insulating ceramics ring simultaneously
Sensor outer housing 210, it is structurally reasonable compact, be effectively ensured insulating ceramics ring 22 and sensor outer housing 210 insulation connection it is steady
Determine reliability.
Further, please continue to refer to Fig. 1 and Fig. 2, it is formed at least one screw lock hole 200 on sensor outer housing 210, until
A few screw lock hole 200 is used to sensor outer housing 210 and entire laser cutting component 2 being firmly secured at external equipment (such as
Laser head) on, the quantity at least one screw lock hole 200 can be specially four, be separately positioned on the four of 210 top surface of sensor outer housing
A edge may be alternatively provided as other quantity certainly or be formed in other positions, do not limit uniquely herein.
Further, insulating ceramics ring 22 is equipped with thread fiting part (not shown) corresponding with threaded portion 13, accordingly
Ground, when threaded portion 13 is the internal screw thread being formed in 12 inner circumferential wall of interconnecting piece (101 inner circumferential wall of first passage), insulation pottery
Thread fiting part in ceramic ring 22 can be external screw thread；When threaded portion 13 is the external screw thread being formed in 12 peripheral outer wall of interconnecting piece
When, the thread fiting part on insulating ceramics ring 22 can be internal screw thread；The structure ensure that insulating ceramics ring 22 and cutting nozzles 1
It is reliably connected, helps to improve the structural stability of entire laser cutting component 2, ensure that and be cut by laser component in cutting process
2 steady operation, product cut quality are good.
The utility model proposes a kind of laser cutting device cut including above-mentioned laser cutting component 2 by the laser
Equipment cutting is cut, product cut quality is higher, cut place non-ripple, and cutting thickness is impartial；Meanwhile cutting cost is lower, it is raw
It produces high-efficient.
Obviously, the above embodiments of the present invention is used for the purpose of clearly illustrating examples for clearly illustrating the present invention, and
It is not limitations of the embodiments of the present invention.For those of ordinary skill in the art, in above description
On the basis of can also make other variations or changes in different ways.There is no need and unable to give all embodiments
Exhaustion.Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention etc., should be included in
Within the protection scope of the utility model claims.
Claims (10)
1. a kind of cutting nozzles, which is characterized in that including nozzle body and the airflow channel that is formed in inside the nozzle body,
The nozzle body has opposite the first face and the second face, and the airflow channel runs through first face and second face；
The airflow channel includes first passage in a circular table shape and cylindrical second channel, the air inlet position of the first passage
In first face, the exhaust outlet of the first passage is connected with the air inlet of the second channel and the first passage
Diameter of outlet size is identical as the air inlet diameter size of the second channel, and the exhaust outlet of the second channel is located at described
Second face, the air inlet diameter size of the first passage are greater than the diameter of outlet size of the second channel.
2. cutting nozzles according to claim 1, which is characterized in that the cross-sectional diameter of the second channel having a size of
0.6mm~6mm.
3. cutting nozzles according to claim 2, which is characterized in that the nozzle body has described for being enclosed
The interconnecting piece of first passage and the threaded portion being arranged on the interconnecting piece.
4. cutting nozzles according to claim 3, which is characterized in that the threaded portion is to be formed in the interconnecting piece circumferential direction
External screw thread on outer wall.
5. a kind of laser cutting component, which is characterized in that including be set in sequence and connect sensor module, insulating ceramics ring and
Cutting nozzles as described in claim 1, the sensor module is to detect between the cutting nozzles and cutter member to be cut
Spacing.
6. laser cutting component according to claim 5, which is characterized in that the sensor module includes sensor master
Body, interface module and probe, the sensor main body include hollow sensor outer housing and are built in the sensor outer housing
Wiring board, respectively with the circuit board electrical connection, the insulating ceramics ring is equipped with not for the interface module and the probe
Rust steel bushing and copper needle, the cutting nozzles, the stainless steel sleeve, the copper needle and the probe successively electrically conduct.
7. laser cutting component according to claim 6, which is characterized in that the laser cutting component further includes for connecting
Connect the retaining ring of the insulating ceramics ring and the sensor outer housing.
8. laser cutting component according to claim 6, which is characterized in that be formed at least one on the sensor outer housing
A screw lock hole.
9. laser cutting component according to claim 5, which is characterized in that the nozzle body has threaded portion, described
Insulating ceramics ring is equipped with thread fiting part corresponding with the threaded portion.
10. laser cutting device, which is characterized in that including the described in any item laser cutting components of such as claim 5~9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822050418.XU CN209256113U (en) | 2018-12-07 | 2018-12-07 | Cutting nozzles, laser cutting component and laser cutting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822050418.XU CN209256113U (en) | 2018-12-07 | 2018-12-07 | Cutting nozzles, laser cutting component and laser cutting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209256113U true CN209256113U (en) | 2019-08-16 |
Family
ID=67562255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822050418.XU Active CN209256113U (en) | 2018-12-07 | 2018-12-07 | Cutting nozzles, laser cutting component and laser cutting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209256113U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112548327A (en) * | 2020-12-03 | 2021-03-26 | 松山湖材料实验室 | Nozzle, laser cutting device and machining method using same |
| CN114346408A (en) * | 2021-09-10 | 2022-04-15 | 苏州创鑫激光科技有限公司 | Integrated handheld laser processing system |
| CN114346430A (en) * | 2021-09-10 | 2022-04-15 | 苏州创鑫激光科技有限公司 | Laser processing apparatus |
| CN114346416A (en) * | 2021-12-28 | 2022-04-15 | 苏州创鑫激光科技有限公司 | Nozzle assembly for laser processing equipment |
-
2018
- 2018-12-07 CN CN201822050418.XU patent/CN209256113U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112548327A (en) * | 2020-12-03 | 2021-03-26 | 松山湖材料实验室 | Nozzle, laser cutting device and machining method using same |
| CN114346408A (en) * | 2021-09-10 | 2022-04-15 | 苏州创鑫激光科技有限公司 | Integrated handheld laser processing system |
| CN114346430A (en) * | 2021-09-10 | 2022-04-15 | 苏州创鑫激光科技有限公司 | Laser processing apparatus |
| CN114346416A (en) * | 2021-12-28 | 2022-04-15 | 苏州创鑫激光科技有限公司 | Nozzle assembly for laser processing equipment |
| CN114346416B (en) * | 2021-12-28 | 2024-03-22 | 苏州创鑫激光科技有限公司 | Nozzle assembly for laser processing equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209256113U (en) | Cutting nozzles, laser cutting component and laser cutting device | |
| CN209256112U (en) | Cutting nozzles, laser cutting component and laser cutting device | |
| CN207899723U (en) | A kind of supersonic generator | |
| CN109187293A (en) | A kind of air monitoring equipment | |
| CN201801588U (en) | Graphite boat used in silicon chip production | |
| CN207367594U (en) | The buzzer structure that multi-angle sluices | |
| CN204803346U (en) | A red copper packs accurate quenching inductor of laminar for small -size roller | |
| CN212130862U (en) | Distortion generating device for testing transient total pressure distortion of axial flow compressor | |
| CN211305632U (en) | Vacuum chuck tool platform | |
| CN216852534U (en) | Wiring high-density multilayer board | |
| CN209409318U (en) | 3D printer nozzle | |
| CN208873853U (en) | A kind of TM based on capacitive load010The base station filters of dielectric resonant chamber | |
| CN220622215U (en) | Novel large-air-volume low-noise turbine fan | |
| CN201839506U (en) | Multilayer circuit board with precise outer layer counterpointing | |
| CN213568403U (en) | Pneumatic mechanism | |
| CN213140464U (en) | Quantitative powder feeding device | |
| CN213878367U (en) | Three-dimensional integrated power amplifier assembly | |
| CN201138682Y (en) | Tuning screw nail for microwave coaxial cavity filter | |
| CN206347974U (en) | A kind of offset detecting device of PCB multilayer board | |
| CN217605450U (en) | Multi-hole-site heating device and heat conduction module | |
| CN216096932U (en) | Spiral arc-striking type electrode and non-high-frequency plasma cutting gun head | |
| CN209200211U (en) | A kind of novel conductive terminal connector and signal transmission system | |
| CN208928626U (en) | A kind of high-precision eccentric screw sorter | |
| WO2024093332A1 (en) | Aerosol generating device and microwave heating assembly thereof | |
| CN218960074U (en) | Glass heating sheet |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |