CN106835125A - A kind of adjustable laser coaxial powder feeding nozzle of connecting rod lever-type structure powder convergent point - Google Patents
A kind of adjustable laser coaxial powder feeding nozzle of connecting rod lever-type structure powder convergent point Download PDFInfo
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- CN106835125A CN106835125A CN201710139867.9A CN201710139867A CN106835125A CN 106835125 A CN106835125 A CN 106835125A CN 201710139867 A CN201710139867 A CN 201710139867A CN 106835125 A CN106835125 A CN 106835125A
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- powder feeding
- sleeve
- connecting rod
- powder
- feeding pipe
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C24/00—Coating starting from inorganic powder
- C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
- C23C24/10—Coating starting from inorganic powder by application of heat or pressure and heat with intermediate formation of a liquid phase in the layer
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- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
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- Mechanical Engineering (AREA)
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- Organic Chemistry (AREA)
- Laser Beam Processing (AREA)
Abstract
A kind of adjustable laser coaxial powder feeding nozzle of connecting rod lever-type structure powder convergent point, cladding head is externally provided with powder feeding pipe, and powder feeding pipe is arranged on cladding head surrounding by can adjust the angle regulator of the angle between powder feeding pipe and cladding head；The outlet of powder feeding pipe is downward and is drawn close to laser exit；Angle regulator includes the sleeve being set on cladding head, and the side of sleeve is provided with the drive device that drive sleeve is slided up and down along cladding head outer wall, and guider is provided between sleeve and cladding head；Powder feeding pipe is connected by connecting rod near one end of import with sleeve, and one end and the powder feeding pipe of connecting rod are hinged, and the other end and the sleeve of connecting rod are hinged；Powder feeding pipe is hinged on cladding head near one end of outlet；Central controller is connected with drive device.The present invention can dynamically adjust powder convergent point in real time, allow powder convergent point to fall all the time in the treatment of surfaces of components, realize high accuracy, high-quality, cladding layer of good performance and cladding track variable-width.
Description
Technical field
The present invention relates to a kind of adjustable laser coaxial powder feeding nozzle of connecting rod lever-type structure powder convergent point.
Background technology
With the increase continued to develop with industrial use of laser melting and coating technique, the geometry for processing part is more and more multiple
It is miscellaneous.In process, the width of cladding track generally requires to change.In process, by directly being moved in vertical direction
Dynamic laser melting coating head, changes the position of laser beam focal, so that change the size of workpiece surface hot spot, it is online to change cladding rail
Stitch width.Common laser coaxial powder feeding nozzle can not position adjustment powder according to laser beam focal be converged in real time online
Point position, powder convergent point can deviate processing part plane, it is impossible to realize high accuracy, high-quality, cladding layer of good performance, into
Type efficiency, powder convergence property and powder using efficiency be not high, and this undoubtedly limits the popularization and application of laser melting and coating technique, it is necessary to one kind
Economic, efficient structure meets actual demand.
The content of the invention
To overcome defect present in background technology, the present invention provide one kind can when laser beam focal position changes,
The connecting rod lever adjustable powder-feeding nozzle of powder convergent point of the position of synchronous adjustment powder convergent point.
Technical proposal that the invention solves the above-mentioned problems is：
A kind of adjustable laser coaxial powder feeding nozzle of connecting rod lever-type structure powder convergent point, including cladding head, it is described molten
Cover head top vertically and be provided with laser entrance, cladding head lower section vertically is provided with laser exit；
The cladding head is externally provided with powder feeding pipe, the angle that powder feeding pipe passes through adjustable angle between powder feeding pipe and cladding head
Adjusting means is arranged on cladding head surrounding；The outlet of powder feeding pipe is downward and is drawn close to laser exit, and the axis of powder feeding pipe
Extended line intersects with the extended line of the axis of cladding head, to ensure the laser from laser exit and the outlet from powder feeding pipe
Powder converge；
The angle regulator includes the sleeve being set on cladding head, and the side of the sleeve is provided with drive sleeve edge
Guide sleeve is provided between the drive device that cladding head outer wall is slided up and down, and the sleeve and the cladding head only along vertical side
To the guider for sliding；The powder feeding pipe is connected by connecting rod near one end of import with sleeve, one end of connecting rod and powder feeding
Pipe is hinged, and the other end and the sleeve of connecting rod are hinged；The powder feeding pipe is hinged on cladding head near one end of outlet；
Also include central controller, the central controller is connected with drive device.
Further, the drive device includes spindle motor and feed screw nut, and the spindle motor is located at the top of sleeve,
And the output shaft of spindle motor is vertically downward, the feed screw nut being meshed with the output shaft is fixed on sleeve, the center
Controller is connected with spindle motor.
Further, the spindle motor is fixed on the side of cladding head by support, and the feed screw nut passes through connecting plate
It is fixed on the top surface of sleeve, the output shaft of the spindle motor is meshed through feed screw nut and with feed screw nut.
Further, also including suggestion device, the suggestion device includes fixed optoelectronic position sensing on the bracket
Device, the photoelectrical position sensor has the photosurface that Open Side Down, and the connecting plate is provided with upward baffle plate, the baffle plate
The opening of the photoelectrical position sensor is directed at, the opening is located on the movement locus of the baffle plate, and the optoelectronic position
Sensor is connected with central controller, and the signal that the photoelectrical position sensor will be detected is conveyed to central controller, center
Controller is connected with alarm, and when photoelectrical position sensor detects baffle plate to be entered in the opening, central controller drives
Alarm is acted.
Further, the photoelectrical position sensor is in horizontally disposed U-shaped, and the baffle plate is L-shaped, and the baffle plate water
Plane is fixed on connecting plate by screw bolt and nut.
Further, the powder feeding pipe be respectively equipped with the outer wall of one end of import and the sleeve the first hinged seat and
Second hinged seat, the two ends of the connecting rod are connected with the first hinged seat and the second hinged seat axle respectively；The powder feeding pipe is close to
One end of mouth is fixed with rotating bar, and the cladding head outer wall is provided with the 3rd hinged seat, the rotating bar and the 3rd hinged seat
Axle is connected.
Further, the guider includes the gathering sill and feather key that cooperate, and the gathering sill is opened in vertically
On sleeve lining, the feather key is vertically fixedly installed on cladding head outer wall, and the sleeve is along the feather key
Lower slider.
Further, 3 powder feeding pipes equidistantly are provided with the neighboring of the sleeve.
While laser beam focal position changes, the present invention adjusts the inclination angle of powder feeding pipe by angle regulator
Degree, with the position of synchronous adjustment powder convergent point, it is ensured that powder convergent point falls in the treatment of surfaces of components all the time.
The present invention is also configured with including the suggestion device of U groove profile photoelectrical position sensors, for preventing sleeve from exceeding stroke
When collided with cladding head, it is also possible to as spindle motor position origin.Using suggestion device in field of laser cladding to reality
Now high accuracy, high-quality, cladding layer of good performance and raising powder convergence property and utilization rate play an important roll.
Beneficial effects of the present invention are mainly manifested in：
1. while laser defocusing amount is changed, the present invention can dynamically adjust powder convergent point in real time, allow powder convergent point
All the time fall in the treatment of surfaces of components, realize high accuracy, high-quality, cladding layer of good performance and cladding track variable-width.
2. in different laser melting coating process, powder density, granularity used, and powder feeding rate, carrier gas are defeated
Transmission rate all can be different, and these parameters can all cause the change of powder convergent point, and the present invention can be square within the specific limits
The position of adjustment powder convergent point just.
3. coaxial array tube cell formula powder feeding is used, the uniformity that powder stream is converged is can ensure that.
4. powder stream can form uniformly " powder curtain " in the presence of carrier gas in cladding area, can ensure that the uniform of powder
Property, stability.
5. simple and reasonable, it is easily achieved in manufacturing process.
Brief description of the drawings
Fig. 1 is front view of the invention
Fig. 2 is axonometric drawing of the invention
Fig. 3 is angle regulator structural representation
Fig. 4 is the front view of sleeve, the second hinged seat and connecting plate
Fig. 5 is the top view of Fig. 4
Specific embodiment
Referring to the drawings, a kind of adjustable laser coaxial powder feeding nozzle of connecting rod lever-type structure powder convergent point, including cladding
First 1, the top vertically of the cladding head 1 is provided with laser entrance, and cladding head lower section vertically is provided with sharp
Light exit；The laser beam of laser is injected from laser entrance, and is gone out from laser exit, to converge to the treatment of surfaces of components
The cladding head 1 is externally provided with powder feeding pipe 7, and powder feeding pipe 7 is by can adjust the angle between powder feeding pipe 7 and cladding head 1
Angle regulator be arranged on the surrounding of cladding head 1；The outlet of powder feeding pipe 7 is downward and is drawn close to laser exit, and powder feeding pipe 7
The extended line of axis intersects with the extended line of the axis of cladding head 1, with ensure the laser from laser exit with from giving
The powder of the outlet of tube cell 7 is converged；
The angle regulator includes the sleeve 11 being set on cladding head 1, and the side of the sleeve 11 is provided with driving
The drive device that sleeve 11 is slided up and down along the outer wall of cladding head 1, and it is provided with guide sleeves between the sleeve 11 and the cladding head 1
The guider that cylinder 11 is only vertically slided；The powder feeding pipe 7 passes through connecting rod 8 and the phase of sleeve 11 near one end of import
Even, one end and the powder feeding pipe 7 of connecting rod 8 are hinged, and the other end and the sleeve 11 of connecting rod 8 are hinged；The powder feeding pipe 7 is near for exporting
End is hinged on cladding head 1；
Also include central controller, the central controller is connected with drive device, to control drive device.
The drive device includes spindle motor 2 and feed screw nut 4, and the spindle motor 2 is located at the top of sleeve 11, and
Vertically downward, the feed screw nut 4 being meshed with the output shaft 5 is fixed on sleeve 11 output shaft 5 of spindle motor 2, described
Central controller is connected with spindle motor 2.
The spindle motor 2 is fixed on the side of cladding head 1 by support 16, and the feed screw nut 4 is solid by connecting plate 6
It is scheduled on the top surface of sleeve 11, the output shaft 5 of the spindle motor 2 is meshed through feed screw nut 4 and with feed screw nut 4.
Also include suggestion device, the suggestion device includes the photoelectrical position sensor 10 being fixed on the support 16,
The photoelectrical position sensor 10 has the photosurface that Open Side Down；The connecting plate 6 is provided with upward baffle plate 3, the gear
Plate 3 is directed at the opening of the photoelectrical position sensor 10, and the opening is located on the movement locus of the baffle plate 3, and the light
Electric position sensor 10 is connected with central controller, and the signal that the photoelectrical position sensor 10 will be detected is conveyed to central control
Device processed, central controller is connected with alarm, when photoelectrical position sensor 10 detects baffle plate 3 to be entered in the opening, in
Centre controller drives alarm action, reminds sleeve 11 in place, and central controller controls spindle motor 2 stops operating.
The photoelectrical position sensor 10 is in horizontally disposed U-shaped, and the baffle plate 3 is L-shaped, baffle plate 3 include horizontal plane and
Vertical plane, and the horizontal plane of the baffle plate 3 is fixed on connecting plate 6 by screw bolt and nut, the vertical plane alignment of the baffle plate
The opening of photoelectrical position sensor 10, and the opening is on the movement locus on the vertical plane of the baffle plate 3.
The powder feeding pipe 7 is respectively equipped with the first hinged seat 13 and on the outer wall of one end of import and the sleeve 11
Two hinged seats 12, the two ends of the connecting rod 8 are connected with the first hinged seat 13 and the axle of the second hinged seat 12 respectively；The powder feeding pipe 7
One end near outlet is fixed with rotating bar 14, and the outer wall of the cladding head 1 is provided with the 3rd hinged seat 15, the rotating bar 14
It is connected with the axle of the 3rd hinged seat 15.
The guider includes the gathering sill 17 and feather key 9 that cooperate, and the gathering sill 17 is opened in set vertically
On 11 inwalls of cylinder, the feather key 9 is vertically arranged on the outer wall of cladding head 1 by screw, and the sleeve 11 is along the feather key 9
Slide up and down, it is ensured that the sleeve 11 is only vertically moved.
Equidistantly 3 powder feeding pipes 7 are provided with the neighboring of the sleeve 11.
Spindle motor 2 and photoelectrical position sensor 10 pass through screw, are bolted on support 16 respectively, and support 16 passes through
Screw is fixed on the side of cladding head 1, and sleeve 11 and the concentric gap of cladding head 1 coordinate.
In process, when needing to adjust the width of cladding track, cladding head 1 is vertically moved, can be changed
The position of laser beam focal, so as to change the size of workpiece surface hot spot, that is, changes cladding track width.Powder convergent point should
This falls in the treatment of surfaces of components all the time, therefore the position of powder convergent point is also required to synchronous adjustment.Spindle motor 2 rotarily drives silk
Thick stick nut 4 is vertically moved along a straight line, and feed screw nut 4 is moved with moving sleeve 11 in vertical direction, and sleeve 11 further drives
Connecting rod 8 is swung, so as to change the angle of inclination of 3 beam powder feeding pipes 7, the three beams powder convergent point of output can be adjusted with the vertical direction
It is whole and fall all the time in the treatment of surfaces of components, i.e.,：
Spindle motor 2 is stepper motor, and spindle motor 2 is rotated forward and causes feed screw nut 4 to move straight down, drives set
Cylinder 11 is moved straight down, so as to drive 3 connecting rods 8 to swing simultaneously, the inclined degree of powder feeding pipe 7 becomes big, the three beams powder of output
Last convergent point is vertically upper to be moved.Spindle motor 2 is reversely rotated and causes feed screw nut 4 to move straight up, band moving sleeve 11
Move straight up, so as to drive 3 connecting rods 8 to swing simultaneously, the inclined degree of powder feeding pipe 7 diminishes, the three beams powder of output converges
Accumulation is vertically moved down.
When sleeve 11 is moved upwards up to certain position, after photoelectrical position sensor 10 detects baffle plate 3, central controller control
Spindle motor processed 2 stops the rotation, the stop motion of sleeve 11, reaches positioning origin, it is to avoid collide.
After the present invention solves the change of laser beam focal position, powder convergent point is unable to real-time adjustment and deviates processing zero
The problem on part surface, using the connecting rod lever-type structure to realizing high accuracy, high-quality, cladding layer of good performance, improves into
Type efficiency, powder convergence property and powder using efficiency have positive role.
Content described in this specification embodiment is only enumerating to the way of realization of inventive concept, protection of the invention
Scope is not construed as being only limitted to the concrete form that embodiment is stated, protection scope of the present invention also includes art technology
Personnel according to present inventive concept it is conceivable that equivalent technologies mean.
Claims (8)
1. a kind of adjustable laser coaxial powder feeding nozzle of connecting rod lever-type structure powder convergent point, including cladding head, the cladding
Head top vertically is provided with laser entrance, and cladding head lower section vertically is provided with laser exit；Its feature
It is：
The cladding head is externally provided with powder feeding pipe, the angular adjustment that powder feeding pipe passes through adjustable angle between powder feeding pipe and cladding head
Device is arranged on cladding head surrounding；The outlet of powder feeding pipe is drawn close downwards and to laser exit, and the axis of powder feeding pipe extension
Line intersects with the extended line of the axis of cladding head, to ensure the powder of laser and the outlet from powder feeding pipe from laser exit
Body is converged；
The angle regulator includes the sleeve being set on cladding head, and the side of the sleeve is provided with drive sleeve along cladding
The head drive device that slides up and down of outer wall, and guide sleeve is provided between the sleeve and the cladding head only vertically slides
Dynamic guider；The powder feeding pipe is connected by connecting rod near one end of import with sleeve, and one end and the powder feeding pipe of connecting rod are cut with scissors
Connect, the other end and the sleeve of connecting rod are hinged；The powder feeding pipe is hinged on cladding head near one end of outlet；
Also include central controller, the central controller is connected with drive device.
2. the adjustable laser coaxial powder feeding nozzle of a kind of connecting rod lever-type structure powder convergent point as claimed in claim 1, its
It is characterised by：The drive device includes spindle motor and feed screw nut, and the spindle motor is located at the top of sleeve, and leading screw
Vertically downward, the feed screw nut being meshed with the output shaft is fixed on sleeve the output shaft of motor, the central controller
It is connected with spindle motor.
3. the adjustable laser coaxial powder feeding nozzle of a kind of connecting rod lever-type structure powder convergent point as claimed in claim 2, its
It is characterised by：The spindle motor is fixed on the side of cladding head by support, and the feed screw nut is fixed on by connecting plate
On the top surface of sleeve, the output shaft of the spindle motor is meshed through feed screw nut and with feed screw nut.
4. the adjustable laser coaxial powder feeding nozzle of a kind of connecting rod lever-type structure powder convergent point as claimed in claim 3, its
It is characterised by：Also include suggestion device, the suggestion device includes fixed photoelectrical position sensor on the bracket, described
Photoelectrical position sensor has the photosurface that Open Side Down, and the connecting plate is provided with upward baffle plate, and the baffle plate is directed at institute
The opening of photoelectrical position sensor is stated, the opening is located on the movement locus of the baffle plate, and the photoelectrical position sensor
It is connected with central controller, the signal that the photoelectrical position sensor will be detected is conveyed to central controller, central controller
Alarm is connected with, when photoelectrical position sensor detects baffle plate to be entered in the opening, central controller drives alarm
Action.
5. the adjustable laser coaxial powder feeding nozzle of a kind of connecting rod lever-type structure powder convergent point as claimed in claim 4, its
It is characterised by：The photoelectrical position sensor is in horizontally disposed U-shaped, and the baffle plate is L-shaped, and the horizontal plane of the baffle plate leads to
Screw bolt and nut is crossed to be fixed on connecting plate.
6. the adjustable laser coaxial powder feeding nozzle of a kind of connecting rod lever-type structure powder convergent point as claimed in claim 5, its
It is characterised by：The powder feeding pipe is respectively equipped with the first hinged seat and the second hinge on the outer wall of one end of import and the sleeve
Joint chair, the two ends of the connecting rod are connected with the first hinged seat and the second hinged seat axle respectively；The powder feeding pipe is near for exporting
End is fixed with rotating bar, and the cladding head outer wall is provided with the 3rd hinged seat, and the rotating bar is connected with the 3rd hinged seat axle.
7. the adjustable laser coaxial powder feeding nozzle of a kind of connecting rod lever-type structure powder convergent point as claimed in claim 6, its
It is characterised by：The guider includes the gathering sill and feather key that cooperate, and the gathering sill is opened in sleeve vertically
On wall, the feather key is vertically fixedly installed on cladding head outer wall, and the sleeve is slided up and down along the feather key.
8. the adjustable laser coaxial powder feeding nozzle of a kind of connecting rod lever-type structure powder convergent point as claimed in claim 7, its
It is characterised by：Equidistantly 3 powder feeding pipes are provided with the neighboring of the sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710139867.9A CN106835125B (en) | 2017-03-10 | 2017-03-10 | A kind of adjustable laser coaxial powder feeding nozzle of connecting rod lever-type structure powder convergent point |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710139867.9A CN106835125B (en) | 2017-03-10 | 2017-03-10 | A kind of adjustable laser coaxial powder feeding nozzle of connecting rod lever-type structure powder convergent point |
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| Publication Number | Publication Date |
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| CN106835125A true CN106835125A (en) | 2017-06-13 |
| CN106835125B CN106835125B (en) | 2019-06-14 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107199340A (en) * | 2017-08-02 | 2017-09-26 | 鑫精合激光科技发展（北京）有限公司 | A kind of shaping of metal powders device head |
| CN107419265A (en) * | 2017-08-21 | 2017-12-01 | 武汉武钢华工激光大型装备有限公司 | A kind of laser wide-band cladding shower nozzle |
| CN109680273A (en) * | 2018-12-27 | 2019-04-26 | 西安必盛激光科技有限公司 | A kind of adjustable laser melting coating system of laser angle |
| CN111001809A (en) * | 2020-01-07 | 2020-04-14 | 首都航天机械有限公司 | Optical powder tight coupling self-coordination coaxial powder feeding laser additive machining head |
| CN111593340A (en) * | 2020-05-08 | 2020-08-28 | 陕西天元智能再制造股份有限公司 | Laser cladding method for inner wall of hydraulic support oil cylinder |
| CN114574851A (en) * | 2021-12-24 | 2022-06-03 | 杭州博华激光技术有限公司 | Laser cladding variable broadband powder feeding nozzle posture adjusting device |
| CN115351714A (en) * | 2022-07-26 | 2022-11-18 | 安徽恒意硬面工程股份有限公司 | Dust-free environment-friendly closed hot roll surface strengthening treatment system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107199340A (en) * | 2017-08-02 | 2017-09-26 | 鑫精合激光科技发展（北京）有限公司 | A kind of shaping of metal powders device head |
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| CN109680273A (en) * | 2018-12-27 | 2019-04-26 | 西安必盛激光科技有限公司 | A kind of adjustable laser melting coating system of laser angle |
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| CN111001809A (en) * | 2020-01-07 | 2020-04-14 | 首都航天机械有限公司 | Optical powder tight coupling self-coordination coaxial powder feeding laser additive machining head |
| CN111593340A (en) * | 2020-05-08 | 2020-08-28 | 陕西天元智能再制造股份有限公司 | Laser cladding method for inner wall of hydraulic support oil cylinder |
| CN114574851A (en) * | 2021-12-24 | 2022-06-03 | 杭州博华激光技术有限公司 | Laser cladding variable broadband powder feeding nozzle posture adjusting device |
| CN114574851B (en) * | 2021-12-24 | 2023-08-22 | 杭州博华激光技术有限公司 | Laser cladding variable broadband powder feeding nozzle attitude adjusting device |
| CN115351714A (en) * | 2022-07-26 | 2022-11-18 | 安徽恒意硬面工程股份有限公司 | Dust-free environment-friendly closed hot roll surface strengthening treatment system |
| CN115351714B (en) * | 2022-07-26 | 2023-08-29 | 安徽恒意硬面工程股份有限公司 | Dust-free environment-friendly closed type hot roller surface strengthening treatment system |
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| CN106835125B (en) | 2019-06-14 |
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