CN209652381U - Fork dress and ferry device between a kind of saw blade heat treatment procedure - Google Patents
Fork dress and ferry device between a kind of saw blade heat treatment procedure Download PDFInfo
- Publication number
- CN209652381U CN209652381U CN201920212724.0U CN201920212724U CN209652381U CN 209652381 U CN209652381 U CN 209652381U CN 201920212724 U CN201920212724 U CN 201920212724U CN 209652381 U CN209652381 U CN 209652381U
- Authority
- CN
- China
- Prior art keywords
- fork
- pallet
- ferry
- guide rail
- heat treatment
- 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 discloses fork dress and ferry devices between a kind of saw blade heat treatment procedure, including pallet, lifting device, feed arrangement, Working gantry and ferry-boat sliding rail；The bottom of the Working gantry is equipped with pulley, pulley and ferry-boat sliding rail cooperation of the Working gantry by bottom, so that the Working gantry be enable to move back and forth along ferry-boat guide rail；The pulley is provided with self-locking device, and the feed arrangement is removable to be connected to the Working gantry, and the lifting device is fixed on feed arrangement, and the pallet is set to lifting device, and when fork fills, the Working gantry is placed in the enabling direction of heat-treatment furnace；Can the transfer to the pallet spatial position be completed respectively along the vertical direction and horizontal motion in the lifting device and the feed arrangement.The problem that the fork that the utility model effectively alleviates between prior art heat treatment each process fills and handling efficiency is low, saves cost of labor and improves work efficiency.
Description
Technical field
The utility model belongs to saw blade field, and in particular to fork dress and ferry-boat dress between a kind of saw blade heat treatment procedure
It sets.
Background technique
Steel or non-ferrous metal all be unable to do without heat treatment during processing is with industrial products are ultimately formed.And current shadow
The big key factor for ringing heat treatment efficiency is carrying between being heat-treated each process and disengaging furnace speed is slow, low efficiency.It makes
Efficient heat-treatment production line needs corresponding quick fork dress ferry-boat mode.Inventor has found during practice, at present
Fork dress ferry-boat mode of the saw blade between heat treatment procedure is mainly manual handling, heavy workload, low efficiency.
In existing open source literature, for the carrying means that workpiece carries out during being heat-treated, all it is often
Using traditional method for carrying and device, it has been recognised by the inventors that this mode not targetedly to the element being heat-treated into
Row is sufficiently improved, and needs human assistance to operate, this is the major reason for causing handling efficiency low.
Utility model content
For overcome the deficiencies in the prior art, on the one hand, fork dress and ferry-boat dress between a kind of saw blade heat treatment procedure are provided
It sets, on the other hand, fork dress and ferry-boat method between a kind of saw blade heat treatment procedure is provided, can alleviate and be heat-treated in the prior art
Between each process fork dress and ferry-boat low efficiency the problem of.
The utility model, which solves the above problems, to be adopted the technical scheme that:
Fork dress and ferry device between a kind of saw blade heat treatment procedure, including pallet, lifting device, feed arrangement, work
Rack and ferry-boat sliding rail；The bottom of the Working gantry is equipped with pulley, pulley and ferry-boat of the Working gantry by bottom
Sliding rail cooperation, so that the Working gantry be enable to move back and forth along ferry-boat guide rail；
The pulley is provided with self-locking device, and the feed arrangement is removable to be connected to the Working gantry, described
Lifting device is fixed on feed arrangement, and the pallet is set to lifting device end, and when fork fills, the Working gantry is placed in heat
The enabling direction for the treatment of furnace；
The lifting device and the feed arrangement can respectively along the vertical direction and horizontal motion, to complete to institute
State the transfer of pallet spatial position.
The Working gantry is used for the rack as carrying lifting device and feed arrangement.
Further, the lifting device includes pallet fork crotch, guide rail, promotes power source and shield, and described leads
Rail is arranged vertically at shield position of center line, and the promotion power source is arranged in parallel in guide rail two sides, and the protection covers
It is placed on the side of connecting plate, the positioning pin is fixed on pallet fork crotch；The positioning pin is for stopping the pallet
It is dynamic；The pallet fork crotch includes pallet fork crotch main body and the connecting plate for connecting pallet fork crotch body ends, the connecting plate tool
There is the structure to match with the guide rail shape, so as to can be realized opposite sliding between the pallet fork crotch and the guide rail.
The lifting device is for lifting workpieces in the vertical direction.
Further, the pallet fork crotch includes two pallet fork crotch body ends of two pallet fork crotch main bodys and connection
Connecting plate, pallet fork crotch connection promotes the output end of power source, and can be under the drive for promoting power source along guide rail
It is mobile.
Further, the promotion power source is set in the shield, and the promotion power source includes telescopic rod and cylinder
Cylinder, the telescopic rod are socketed on the cylinder barrel, and the free end of the telescopic rod is connected to the pallet fork crotch, and cylinder barrel end is fixed on
Support frame, also or the pallet fork crotch is fixed at cylinder barrel end, and the free end of telescopic rod is connected to support frame；When the telescopic rod
When with the cylinder barrel relative motion, it is able to drive pallet fork crotch and is moved in a straight line along guide rail.
Further, the feed arrangement includes pulley, support frame and power source, and power source is arranged in Working gantry
The side in portion, pulley are embedded at support frame both ends, support frame and Working gantry by the removable connection of pulley, feed arrangement with
The removable connection type of Working gantry can be sliding rail connection, dovetail groove connection etc., and preferably sliding rail connects, feed arrangement
Driving method is motor driven, and specific driving method is that motor output end connects support frame, the transmission by transmission mechanism
Mechanism is in belt gear, chain-drive mechanism, gear drive, turbine and worm transmission mechanism or cam drive
It is one or more of.The feed arrangement can be moved planar, and then lifting device is driven to shift in space, complete fork dress
Work.
Further, the guide rail of the lifting device is fixed on support frame, and the cylinder barrel of the power source of the lifting device is solid
Due to support frame.
Further, the heat-treatment furnace interior arrangement includes heat treatment bonnet, special cushion block, and special cushion block is equipped with more
It is a, it is placed equidistant between multiple special cushion blocks, forms cooperation slot between multiple special cushion blocks, cooperate fork pockets and pallet fork crotch master
Body is clearance fit on the width, in height, fork pockets height be much higher than crotch thickness, in order to pallet fork crotch subject freedom into
Out.
Further, the cooperation fork pockets is located at below the pallet, in order to adapt to various operating conditions.
The course of work of fork dress and ferry device between the saw blade heat treatment procedure, comprising the following steps:
When saw blade is placed in pallet, the Working gantry of fork dress and ferry device between the saw blade heat treatment procedure
It is moved to before heat-treatment furnace and is fixed with self-locking device along ferry-boat guide rail, the power source of lifting device works and pitches pallet fork
Frame raises up along guide rail and holds up pallet, and the power source in feed arrangement, which provides power, makes support frame drive lifting device
Feed motion is done along guide rail；
When saw blade is sent into heat-treatment furnace and cooperated with cooperation fork pockets by pallet fork crotch, the power source of lifting device is risen
Effect declines pallet fork crotch along guide rail and pallet is placed on appropriate position, at this time extracts pallet fork crotch out, completes into furnace
Process；
After the completion of saw blade heat treatment procedure, the power source of lifting device, which works, makes pallet fork crotch along under guide rail
It drops, the power source in propulsion device, which provides power, makes support frame that lifting device be driven to do progradation and pallet fork crotch along guide rail
It stretches in the cooperation fork pockets below pallet, the power source of lifting device, which works, raises up pallet fork crotch simultaneously along guide rail
Pallet is held up, the power source in propulsion device, which provides power, makes support frame that lifting device be driven to exit along sliding rail, completes out
Furnace process.
The utility model is beneficial in that, is effectively alleviated the fork dress between prior art heat treatment each process and is carried
The problem of low efficiency, saves cost of labor and improves work efficiency compared with current manual handling.
Detailed description of the invention
Fig. 1 is 1 overall structure elevation view of embodiment；
Fig. 2 is 1 feed arrangement elevation view of embodiment,
Fig. 3 is 1 lifting device elevation view of embodiment,
Fig. 4 is 1 heat-treatment furnace of embodiment, 1 interior arrangement schematic diagram.
In figure, 1, heat-treatment furnace, 2, purpose-made pallet, 3, lifting device, 4, feed arrangement, 5, Working gantry, 6, ferry-boat lead
Rail, 101, heat treatment bonnet, 102, special cushion block, 103, cooperation fork pockets, 301, pallet fork crotch main body, 302, connecting plate, 303,
Guide rail, 304, the power source of lifting device, 305, shield, 306, positioning pin, 401, pulley, 402, support frame, 403, feeding
The power source of device.
Specific embodiment
It is noted that following detailed description is all illustrative, it is intended to provide further instruction to the application.Unless another
It indicates, all technical and scientific terms used herein has usual with the those of ordinary skill of herein described technical field
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singular
Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or their combination.
It should be pointed out that the orientation word in following embodiment is to be described with reference to the accompanying drawings with actual use habit
's.
Embodiment 1
As shown in Figure 1, the utility model integrally includes heat-treatment furnace 1, pallet 2, lifting device 3, feed arrangement 4, work
Rack 5 and ferry-boat sliding rail 6；The Working gantry 5 is placed on ferry-boat sliding rail 6 by lower section pulley and can be in ferry-boat guide rail 6
On move back and forth, 5 lower section pulley of Working gantry is provided with self-locking device, the feed arrangement 4 be placed on Working gantry 5 and with
The connection type of Working gantry 5 is movable connection, and the lifting device 3 is fixed on feed arrangement 4, and the pallet 2 is put
It sets on lifting device 3, the Working gantry 5 is placed in the front of heat-treatment furnace 1.
The pallet 2 is used to lift the heat treated part for participating in transport, carry, therefore the pallet 2 can be
Round, rectangle or any other one kind can be completed to lift movement, reach the discoid pieces for lifting effect.
The Working gantry 5 is used for the rack as carrying lifting device 3 and feed arrangement 4, it is wrapped in the present embodiment
The section components of multiple interconnections are included, frame main body are connected and composed between section components, and between multiple section components extremely
It less include 4 vertical section components, the bottom end of vertical section components connects pulley, pulley cooperation ferry-boat sliding rail 6.
In the present embodiment, the pulley shares 4, and every 2 are one group, and branch is in the two sides of the Working gantry 5, institute
It states ferry-boat sliding rail 6 and is equipped with 2,2 groups of pulleys cooperate with 2 ferry-boat sliding rails respectively, to realize the drive for Working gantry 5.
The Working gantry 5 has the section components including at least 2 horizontal directions, the section components of 2 horizontal directions
Railway effect is played, for carrying out freedom degree restriction to being embedded in feed arrangement therein respectively.
The lifting device 3 includes pallet fork crotch main body 301, guide rail 303, hydraulic cylinder 304 and shield 305, described
Guide rail 303 be arranged vertically at the position of center line of lifting device 3, the hydraulic cylinder 304 is arranged in parallel in 303 liang of guide rail
Side, the pallet fork crotch includes the connecting plate 302 of pallet fork crotch main body 301 and connection 301 end of pallet fork crotch main body, described
Connecting plate 302 has the structure to match with 303 shape of guide rail, so that the pallet fork crotch main body 301 and the guide rail
It being capable of linear relative movement between 303；303 cross sectional shape of guide rail can be I-shaped, rectangle etc., use in the present embodiment
The guide rail of i shaped cross section shape, the shield 305 are covered in the side of connecting plate 302, and the positioning pin 306 is fixed on goods
It pitches in crotch main body 301.
As shown, the pallet fork crotch main body 301 is for lifting the pallet 2, the positioning pin in the present embodiment
306 for carrying out stop to the pallet 2；The positioning pin 306 can be equipped with it is multiple, in order to which multiple pallets 2 are relatively solid
Due in the pallet fork crotch main body 301.
In the present embodiment, the pallet fork crotch includes two pallet fork crotch of two pallet fork crotch main bodys 301 and connection
The connecting plate 302 of 301 end of main body, the output end of the pallet fork crotch connection liquid cylinder pressure 304, and can be in hydraulic cylinder 304
It is moved under drive along guide rail.
The hydraulic cylinder 304 is set in the shield 305, and the hydraulic cylinder 304 includes cylinder barrel and telescopic rod, described to stretch
The free end of contracting bar is connected to the pallet fork crotch；When the telescopic rod and the cylinder barrel relative motion, it is able to drive pallet fork
Crotch is moved in a straight line along guide rail 303.
The feed arrangement 4 includes pulley 401, support frame 402 and power source 403, and power source 403 is arranged in workbench
Side inside frame 5, pulley 401 is embedded in can by pulley 401 in 402 both ends of support frame, support frame 402 and Working gantry 5
Mobile connection, feed arrangement 4 can be connect with the removable connection type of Working gantry 5 for sliding rail, dovetail groove connects etc., preferably
Driving method for sliding rail connection, feed arrangement 4 is motor driven, and specific driving method is the output shaft end of motor 403
Sprocket wheel is installed, sprocket wheel is respectively installed on the axis of the workbench rear and front end of the feed arrangement, and chain not only will be with sprocket wheel phase
Mutually engagement, both ends also need to be respectively fixedly connected at the both ends of support frame 402, when motor 403 works, pass through nibbling for sprocket wheel chain
Transmission is closed, chain will drive support frame 402 to move in a straight line under the guiding of sliding rail, complete feeding.
In the present embodiment, support frame as described above 402 includes multiple fashioned iron, and connection forms rectangle frame knot between multiple fashioned iron
The top of structure, frame like structure connects the shield 305, to protect the equipment inside shield 305.
The guide rail of the lifting device is fixed on support frame, and the cylinder barrel of the power source of the lifting device is fixed on support
Frame.
The heat-treatment furnace interior arrangement includes heat treatment bonnet 101, special cushion block 102, and special cushion block 102 is equipped with more
It is a, it is placed equidistant between multiple special cushion blocks 102, forms cooperation slot 103 between multiple special cushion blocks 102, cooperate fork pockets 103
It is on the width clearance fit with pallet fork crotch main body 301, in height, fork pockets height is much higher than crotch thickness, in order to goods
Crotch main body 301 is pitched to be inserted into.The special cushion block 102 is equipped with 3 for the padded workpiece for needing to heat, the special cushion block 102
A, the cooperation slot 103 is equipped with 2.
Implementing the present embodiment has following benefit compared with the existing technology:
1) by the relative motion between Working gantry, lifting device and feed arrangement, the workpiece of heating can be carried out
Transfer separates the workpiece of heating with transmission device and power device simultaneously because using the combination of pallet and pallet fork crotch,
It ensure that the stability and safety of entire machine movement.
2) it uses hydraulic cylinder as power source, and hydraulic cylinder enables guide rail to move in shield, is conducive to perpendicular
Histogram plays the delivery potential of guide rail to conevying efficiency is improved.
3) feed arrangement uses motor as power source, convenient for control.
Embodiment 2
Embodiment 2 the difference from embodiment 1 is that, the driving method of feed arrangement 4 is hydraulic-driven, the hydraulic-driven
Specific driving method be that the output end of hydraulic cylinder connects a geostationary fixing piece in position, by the movement of hydraulic cylinder,
The support frame 402 that the main body of hydraulic cylinder can be driven to connect moves.
Implementing the present embodiment has following benefit compared with the existing technology:
Feed arrangement uses the driving method of hydraulic-driven, is capable of providing bigger torque and more accurate move distance
Control.
Embodiment 3
Embodiment 3 discloses a kind of method of fork dress and ferry-boat workpiece between the heat treatment procedure using saw blade, including following
Step:
When saw blade is placed on pallet 2, the workbench of fork dress and ferry device between the saw blade heat treatment procedure
Frame 5 is moved to before heat-treatment furnace 1 along ferry-boat guide rail 6 and is fixed with self-locking device, and the hydraulic cylinder 304 in lifting device 3 rises
Effect raises up pallet fork crotch main body 301 along guide rail 303 and holds up pallet 2, the power source 403 in feed arrangement 4
There is provided power makes support frame 402 that lifting device 3 be driven to do feed motion along guide rail.
When saw blade is sent into heat-treatment furnace 1 and cooperated with cooperation fork pockets 103 by pallet fork crotch main body 301, lifting device
Hydraulic cylinder 304 in 3, which works, to be declined pallet fork crotch main body 301 along guide rail 303 and pallet 2 is placed on appropriate position,
Pallet fork crotch main body 301 is extracted out at this time, is completed into furnace process.
When saw blade heat treatment procedure is completed, the hydraulic cylinder 304 in lifting device 3 works and makes pallet fork crotch main body
301 decline along guide rail 303, the power source 403 in propulsion device 4 provide power make support frame 402 drive lifting device 3 along
Guide rail does progradation and pallet fork crotch main body 301 stretches in the cooperation fork pockets of 2 lower section of pallet, hydraulic in lifting device 3
Cylinder 304, which works, to be raised up pallet fork crotch main body 301 along guide rail 303 and holds up pallet 2, dynamic in propulsion device 4
Power source 403, which provides power, makes support frame 402 that lifting device 3 be driven to stretch out along guide rail, completes process of coming out of the stove.
For above step, it should be noted that the present embodiment is directed to the case where multiple heat-treatment furnaces, it is therefore desirable to
The workpiece in heat-treatment furnace is taken out in the case where multiple heat-treatment furnaces work together, and needs to pitch when having multiple heat-treatment furnaces
Fork dress and ferry device can be moved along ferry-boat track when filling workpieces processing, between the saw blade heat treatment procedure arrives separately at
The position of multiple heat-treatment furnaces.
Implementing the present embodiment has following benefit compared with the existing technology:
1) by the relative motion between Working gantry, lifting device and feed arrangement, the workpiece of heating can be carried out
Transfer separates the workpiece of heating with transmission device and power device simultaneously because using the combination of pallet and pallet fork crotch,
It ensure that the stability and safety of entire machine movement.
2) it uses hydraulic cylinder as power source, and hydraulic cylinder enables guide rail to move in shield, is conducive to perpendicular
Histogram plays the delivery potential of guide rail to conevying efficiency is improved.
The foregoing is merely preferred embodiment of the present application, are not intended to limit this application, for the skill of this field
For art personnel, various changes and changes are possible in this application.Within the spirit and principles of this application, made any to repair
Change, equivalent replacement, improvement etc., should be included within the scope of protection of this application.
Claims (7)
1. fork dress and ferry device between a kind of saw blade heat treatment procedure, which is characterized in that including heat-treatment furnace, pallet, promotion
Device, feed arrangement, Working gantry and ferry-boat sliding rail；The bottom of the Working gantry is equipped with pulley, for matching with ferry-boat sliding rail
It closes, so that the Working gantry be enable to move back and forth along ferry-boat guide rail；
The feed arrangement is removable to be connected to the Working gantry, and the lifting device is installed on feed arrangement；It is described
Lifting device and the feed arrangement can respectively along the vertical direction and horizontal motion, to complete to the pallet and workpiece
The transfer of position.
2. fork dress and ferry device between saw blade heat treatment procedure as described in claim 1, which is characterized in that the promotion
Device includes pallet fork crotch, guide rail, promotes power source and shield；The guide rail is arranged vertically at shield center line position
It sets, the promotion power source is arranged in parallel in guide rail two sides, and the shield is covered in the side of connecting plate, and positioning pin is fixed
On the pallet fork crotch, for carrying out stop to the pallet；The pallet fork crotch includes pallet fork crotch main body and connection
The connecting plate of pallet fork crotch body ends, the connecting plate has the structure to match with the guide rail shape, so that the goods
Pitching being capable of linear relative movement between crotch and the guide rail.
3. fork dress and ferry device between saw blade heat treatment procedure as claimed in claim 2, which is characterized in that the pallet fork fork
Frame connection promotes the output end of power source, and can move under the drive of hydraulic cylinder along guide rail.
4. fork dress and ferry device between saw blade heat treatment procedure as claimed in claim 2, which is characterized in that described promoted is moved
Power source is set in the shield, and the promotion power source includes cylinder barrel and telescopic rod, and the telescopic rod is socketed on the cylinder barrel,
The free end of the telescopic rod is connected to the pallet fork crotch；It, being capable of band when the telescopic rod and the cylinder barrel relative motion
Dynamic guide rail and pallet fork crotch relative motion.
5. fork dress and ferry device between saw blade heat treatment procedure as described in claim 1, which is characterized in that the feeding
Device includes pulley, support frame and feeding power source, and feeding power source is arranged in the side inside Working gantry, and pulley is embedded in
At support frame both ends, support frame and Working gantry pass through the removable connection of pulley.
6. fork dress and ferry device between saw blade heat treatment procedure as described in claim 1, which is characterized in that at the heat
Manage furnace interior device include heat treatment bonnet, special cushion block, special cushion block be equipped with it is multiple, equidistantly set between multiple special cushion blocks
It sets, forms cooperation slot between multiple special cushion blocks, fork pockets and pallet fork crotch main body is cooperated to be adapted completely.
7. fork dress and ferry device between saw blade heat treatment procedure as claimed in claim 6, which is characterized in that the cooperation fork
Slot position is below the pallet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920212724.0U CN209652381U (en) | 2019-02-18 | 2019-02-18 | Fork dress and ferry device between a kind of saw blade heat treatment procedure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920212724.0U CN209652381U (en) | 2019-02-18 | 2019-02-18 | Fork dress and ferry device between a kind of saw blade heat treatment procedure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209652381U true CN209652381U (en) | 2019-11-19 |
Family
ID=68524435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920212724.0U Active CN209652381U (en) | 2019-02-18 | 2019-02-18 | Fork dress and ferry device between a kind of saw blade heat treatment procedure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209652381U (en) |
-
2019
- 2019-02-18 CN CN201920212724.0U patent/CN209652381U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201931069U (en) | Automatic material taking mechanical hand | |
| CN201610322U (en) | Feeding mechanical device | |
| CN203466691U (en) | Automatic overturn equipment for generator stator | |
| CN209396575U (en) | Hollow brick automatically unloads base machine | |
| CN205501371U (en) | Automatic turning device of guide wheel quenching | |
| CN205364625U (en) | Punch press work platform's circulation elevating gear | |
| CN209652381U (en) | Fork dress and ferry device between a kind of saw blade heat treatment procedure | |
| CN110282318A (en) | A kind of full-automatic bidirectional bacterium frame undercarriage machine | |
| CN206813901U (en) | A kind of aluminum-alloy wheel is heat-treated automatic charging device | |
| CN110155733A (en) | Lifting type stacking machine | |
| CN202626251U (en) | Quenching tank for chain type conveying stabilizer bar | |
| CN109706305A (en) | Fork dress and ferry device and method between a kind of saw blade heat treatment procedure | |
| CN101653820A (en) | Continuous casting steel pusher and automatic stacking method thereof | |
| CN204135662U (en) | A kind of automatic press mounting nailing system | |
| CN103569614B (en) | Conveying system for fly ash block steam-curing | |
| CN217536085U (en) | Quenching cooling tank | |
| CN109384033A (en) | Material transferring device, material transmission line body equipment and control method between a kind of wire body | |
| CN213531319U (en) | Automatic welding equipment for steel mesh framework | |
| CN209465496U (en) | A kind of rack pinion formula coalignment | |
| CN209352169U (en) | Material transferring device and the material transmission line body equipment with it between a kind of wire body | |
| CN209275528U (en) | A kind of engine conveying device | |
| CN114030818A (en) | Flexible steel reinforcement cage traction machine | |
| CN208033647U (en) | A kind of fork formwork manipulator | |
| CN203474862U (en) | Abrasion-resistant steel ball quenching furnace auxiliary device | |
| CN203112954U (en) | Galvanized workpiece conveying mechanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20210508 Granted publication date: 20191119 |