CN207873906U - A kind of novel diamond alloy grinding tool intelligence blade grinding machine - Google Patents
A kind of novel diamond alloy grinding tool intelligence blade grinding machine Download PDFInfo
- Publication number
- CN207873906U CN207873906U CN201721870303.4U CN201721870303U CN207873906U CN 207873906 U CN207873906 U CN 207873906U CN 201721870303 U CN201721870303 U CN 201721870303U CN 207873906 U CN207873906 U CN 207873906U
- Authority
- CN
- China
- Prior art keywords
- machine table
- rectangular box
- setting
- grinding
- fixedly connected
- 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.)
- Expired - Fee Related
Links
Landscapes
- Grinding-Machine Dressing And Accessory Apparatuses (AREA)
Abstract
The utility model discloses a kind of novel diamond alloy grinding tool intelligence blade grinding machines, including machine table, it is characterized in that, the machine table is equipped with rectangular box, the machine table side is equipped with feeding device, the machine table is equipped with processing unit (plant), is equipped with dust-extraction unit in the rectangular box, bottom and cooling purifying device is equipped with below processing unit (plant) in the machine table;The feeding device, it includes the bottom plate being arranged in machine table side, it is arranged in bottom plate side and positioned at the horizontal mounting plate close to the machine table other end, one group of slide bar being arranged at the top of horizontal mounting plate inner surface, the block being fixedly connected respectively with slide bar at machine table front side surface and front side surface both ends is set, the sliding block being separately positioned on slide bar, the rectangular slab that upper surface is fixedly connected with slider bottom, the magnetic coupling rodless cylinder being inserted on rectangular slab, upper surface is fixedly connected on the electromagnet of magnetic coupling rodless cylinder bottom, the multiple edging wheels being arranged on bottom plate.
Description
Technical field
The utility model is related to field of machining, more particularly to a kind of novel diamond alloy grinding tool intelligence blade grinding machine.
Background technology
It is polishing and polishing to have a critical process in existing ceramic tile production procedure, and processing quality directly affects ceramic tile
Beautification level and application effect, therefore, it is that this process reaches quality and refers to improve the quality of milling tools, that is, grinding tool and precision
Target directly ensures.
The current worldwide manufacture of grinding tool or pure handwork, meanwhile, grinding tool industry is in tile industry
Downstream will produce a large amount of dust polluting environment in production process of putting the first edge on a knife or a pair of scissors, and putting the first edge on a knife or a pair of scissors a large amount of dusts generated in the process can be right
Clamping device damages, and after cooling water mix dust is a kind of very high mixture of hardness when putting the first edge on a knife or a pair of scissors, to cooling water tank and
Cooling water purification all proposes very high requirement.
Utility model content
The purpose of this utility model is that solve the above-mentioned problems and provides a kind of novel diamond alloy grinding tool intelligence
Energy blade grinding machine, provides processing unit (plant), which reduces intensity of workers by the operation of processing unit (plant), by using
What the collaboration of two grinding wheels made workpiece stress balance is not in the mood for clamping method, improves working efficiency, reduces cost, which passes through dedusting
Device exclusive segment dust extends service life of equipment, which is rinsed processing unit (plant) by cooling purifying device scattered
Heat prevents dust deposit, is cleared up afterwards convenient for staff.
To solve the above-mentioned problems, the utility model provides a kind of technical solution:A kind of novel diamond alloy grinding tool
Intelligent blade grinding machine, including machine table, the machine table are equipped with rectangular box, and the machine table side is equipped with feeding device, described
Machine table is equipped with processing unit (plant), is equipped with dust-extraction unit in the rectangular box, bottom and is located at processing unit (plant) in the machine table
Lower section is equipped with cooling purifying device;The feeding device comprising be arranged machine table side bottom plate, be arranged in bottom plate side
And it is located at the horizontal mounting plate close to the machine table other end, one group of slide bar being arranged at the top of horizontal mounting plate inner surface, sets
Set the block being fixedly connected respectively with slide bar at machine table front side surface and front side surface both ends, the cunning being separately positioned on slide bar
Rectangular slab that block, upper surface are fixedly connected with slider bottom, the magnetic coupling rodless cylinder being inserted on rectangular slab, upper surface are fixed
The multiple edging wheels for being connected to the electromagnet of magnetic coupling rodless cylinder bottom, being arranged on bottom plate;The processing unit (plant) comprising
Processing mouth in rectangular box front side surface and above machine table is set, is arranged in machine table upper surface and partial penetration processing
Mouthful workbench, setting station to be processed on the table, setting on the table and be located at station opposite side to be processed
Loading and unloading station, be arranged in rectangular box front side surface and positioned at processing mouth above cutterhead in side wheel, be arranged in rectangle
Case side and the No.1 for being located at bottom plate opposite side are open, are inserted into No.1 opening and the other end extends on the outside of rectangular box
Extension slot is arranged the No.1 link block being connected respectively with support bar in one group of support bar, both sides of extension slot inner surface, sets
Set No.1 link block upper surface and positioned at the No.1 grinding wheel motor of No.1 open outer side, setting in No.1 link block lower surface and
Cylindrical grinding facet wheel in rectangular box is arranged on rear side of rectangular box and the other end extends to No. two connections outside rectangular box
Block is arranged No. two link block upper surfaces and is connected at No. two positioned at No. two grinding wheel motors of outer surface, setting on rear side of rectangular box
Block lower surface and the face grinding grinding wheel in rectangular box;The dust-extraction unit comprising rectangular box side surface and positioned at close
Bottom plate side is equipped with suction inlet, one end is fixedly connected on the dust gathering arrester being fixedly connected on the outside of rectangular box and with suction inlet, fixed company
It is connected on the dust leg of the dust gathering arrester other end;The cooling purifying device comprising be arranged in machine table and be located at processing unit (plant)
The liquid reserve tank of bottom, the cover board being arranged at the top of liquid reserve tank, setting No.1 liquid outlet on the cover board, setting are on the cover board and one
Hold be connected with No.1 liquid outlet suction pump, one end is fixedly connected with the suction pump other end and the other end extends in rectangular box
Jet pipe, nozzle in the jet pipe other end and above the rectangular box internal attachment is set, is arranged in machine table support
Frame, the catch box being arranged in supporting rack are arranged in the dust guiding tube of catch box bottom, the valve being arranged on dust guiding tube, setting
Taper dust bucket, setting in rectangular box and below the processing unit (plant) are in taper dust bottom of the barrel and another with disposal box phase
The collector tube of connection, the No.1 strainer being arranged in catch box are arranged in catch box and are located at No. two above No.1 strainer
Strainer, the conduit that one end is fixedly connected with one side roof part of catch box and the other end is connected with liquid reserve tank bottom, setting are being processed
The cabinet door of platform side surface.
Preferably, being equipped with dustproof shade at the top of the processing mouth and above workbench.
Preferably, being respectively equipped with supporting leg at the machine table bottom four corners.
Preferably, side wheel, cylindrical grinding facet wheel and face grinding grinding wheel are respectively positioned on above workbench in the cutterhead.
Preferably, the filter hole of No. two strainers is less than the filter hole of No.1 strainer.
Preferably, the catch box bottom is tapered.
The beneficial effects of the utility model:The utility model have it is reasonable for structure it is simple, production cost is low, easy for installation,
Multiple functional, which reduces intensity of workers by the operation of processing unit (plant), makes by using two grinding wheel collaborations
Workpiece stress balance is not in the mood for clamping method, improves working efficiency, reduces cost, which passes through dust-extraction unit exclusive segment powder
Dirt extends service life of equipment, which is rinsed heat dissipation by cooling purifying device to processing unit (plant), prevents dust heavy
Product, is cleared up afterwards convenient for staff.
Description of the drawings
The utility model is described in detail by following specific implementations and attached drawing for ease of explanation,.
Fig. 1 is the structural schematic diagram of the utility model;
Fig. 2 is the processing unit (plant) schematic diagram of the utility model;
Fig. 3 is the structure cooling purifying device schematic diagram of the utility model.
1- machine tables;2- rectangular boxes;3- bottom plates;4- horizontal mounting plates;5- slide bars;6- blocks;7- sliding blocks;8- rectangular slabs;
9- magnetic coupling rodless cylinders;10- electromagnet;11- processes mouth;12- workbench;13- stations to be processed;14- loading and unloading stations;
Side wheel in 15- cutterheads;16- No.1s are open;17- extension slots;18- support bars;19- No.1 link blocks;20- No.1s grinding wheel electricity
Machine;21- cylindrical grinding facet wheels;No. bis- link blocks of 22-;No. bis- grinding wheel motors of 23-;24- face grinding grinding wheels;25- suction inlets;26-
Dust gathering arrester;27- dust legs;28- liquid reserve tanks;29- cover boards;30- No.1 liquid outlets;31- suction pumps;32- jet pipes;33- nozzles;
34- supporting racks;35- catch boxes;36- dust guiding tubes;37- valves;38- taper dust buckets;39- collector tubes;40- No.1 strainers;41-
Supporting leg;No. bis- strainers of 42-;43- conduits;44- cabinet doors;45- dustproof shades.
Specific implementation mode
As shown in Figure 1 to Figure 3, present embodiment uses following technical scheme:A kind of novel diamond alloy grinding tool
Intelligent blade grinding machine, including machine table 1, the machine table 1 are equipped with rectangular box 2, and 1 side of the machine table is equipped with feeding device,
The machine table 1 is equipped with processing unit (plant), is equipped with dust-extraction unit in the rectangular box 2, in the machine table 1 bottom and positioned at plus
Tooling sets lower section and is equipped with cooling purifying device;The feeding device comprising be arranged and exist in the bottom plate 3 of 1 side of machine table, setting
3 side of bottom plate and positioned at close to machine table 1 other end horizontal mounting plate 4, be arranged at the top of 4 inner surface of horizontal mounting plate
The block 6 being fixedly connected respectively with slide bar 5 at 1 front side surface of machine table and front side surface both ends, respectively is arranged in one group of slide bar 5
The sliding block 7 that is arranged on slide bar 5, the rectangular slab 8 that upper surface is fixedly connected with 7 bottom of sliding block, the magnetic coupling being inserted on rectangular slab 8
Close rodless cylinder 9, upper surface is fixedly connected on the electromagnet 10 of 9 bottom of magnetic coupling rodless cylinder, it is multiple on bottom plate 3 to be arranged
Edging wheel;The processing unit (plant) comprising the processing mouth 11 in 2 front side surface of rectangular box and above machine table 1 is set, is set
Set 1 upper surface of machine table and partial penetration process the workbench 12 of mouth 11, setting station to be processed 13 on table 12,
It is arranged on table 12 and on front side of the loading and unloading station 14 of 13 opposite side of station to be processed, setting are in rectangular box 2
Surface and in the cutterhead of processing mouth 11 top side wheel 15, be arranged in 2 side of rectangular box and positioned at 3 opposite side of bottom plate
No.1 opening 16 is inserted into No.1 opening 16 and the other end extends to the extension slot 17 in the outside of rectangular box 2, is arranged in extension slot
No.1 link block 19 that one group of support bar 18, both sides of 17 inner surfaces are connected with support bar 18 respectively, setting connect in No.1
It connects 19 upper surface of block and is located at the No.1 grinding wheel motor 20 in 16 outside of No.1 opening, is arranged in 19 lower surface of No.1 link block and position
In in rectangular box 2 cylindrical grinding facet wheel 21, No. two companies extended in the rear side of rectangular box 2 and the other end outside rectangular box 2 are set
Block 22 is connect, is arranged No. two 22 upper surfaces of link block and exists positioned at No. two grinding wheel motors 23 of 2 rear side outer surface of rectangular box, setting
No. two 22 lower surfaces of link block and the face grinding grinding wheel 24 in rectangular box 2;The dust-extraction unit comprising 2 side of rectangular box
It surface and is fixedly connected on 2 outside of rectangular box positioned at suction inlet 25, one end is equipped with close to 3 side of bottom plate and is fixed with suction inlet 25
The dust gathering arrester 26 of connection, the dust leg 27 for being fixedly connected on 26 other end of dust gathering arrester;The cooling purifying device comprising setting
In cover board in machine table 1 and positioned at the liquid reserve tank 28 of processing unit (plant) bottom, the cover board 29 being arranged at the top of liquid reserve tank 28, setting
No.1 liquid outlet 30 on 29, be arranged on cover board 29 and suction pump 31 that one end is connected with No.1 liquid outlet 30, one end with
31 other end of suction pump is fixedly connected and the other end extends to jet pipe 32 in rectangular box 2, is arranged in 32 other end of jet pipe and position
Nozzle 33 above 2 internal attachment of rectangular box, is arranged in supporting rack 34 supporting rack 34 being arranged in machine table 1
Catch box 35 is arranged in the dust guiding tube 36 of 35 bottom of catch box, the valve 37 being arranged on dust guiding tube 36, setting in rectangular box 2
Interior and taper dust bucket 38 below the processing unit (plant), setting another are connected in 38 bottom of taper dust bucket and with disposal box
Collector tube 39, be arranged in catch box 35 No.1 strainer 40, setting is in the catch box 35 and above No.1 strainer 40
No. two strainers 42, the conduit that one end is fixedly connected with 35 1 side roof part of catch box and the other end is connected with 28 bottom of liquid reserve tank
43, cabinet door 44 in 1 side surface of machine table is set.
Wherein, it is equipped with dustproof shade 45 at the top of the processing mouth 11 and positioned at 12 top of workbench;1 bottom four of the machine table
Supporting leg 41 is respectively equipped at angle;Side wheel 15, cylindrical grinding facet wheel 21 and face grinding grinding wheel 24 are respectively positioned on work in the cutterhead
12 top of platform;The filter hole of No. two strainers 42 is less than the filter hole of No.1 strainer 40;35 bottom of the catch box is tapered.
The use state of the utility model is:Before the device, workpiece to be processed is placed on bottom plate 3, PLC is passed through
Controller starts magnetic coupling rodless cylinder 9 and is moved along slide bar 5, while electromagnet 10 takes out workpiece to be processed, and is moved along slide bar 5
It moves to station 13 to be processed, workbench 12 is started by PLC controller, workpiece to be processed is moved to rectangular box 2, is led to
It crosses PLC controller and starts No.1 grinding wheel motor 20 and No. two grinding wheel motors 23, drive cylindrical grinding facet wheel 21 and face grinding grinding wheel
24 actions, are processed workpiece to be processed, while suction inlet 25 siphons away large particle by suction inlet 25, while starting pumping
Cooling water in liquid reserve tank 28 is pumped in nozzle 33, cooling water is sprayed on processing unit (plant) by sucking pump 31, the powder processed
Dirt is flow to cooling water in taper dust bucket 38, and is entered in catch box 35 by collector tube 39, and accumulation is heavy in catch box 35
Behind shallow lake, the liquid of top after No.1 strainer 40 and No. two filterings of strainers 42 by immersing 35 top of catch box, when in catch box 35
It after filtered liquid reach a certain height, is flow in liquid reserve tank 28 by conduit 43 and carries out secondary use, reduce waste, work
Personnel need periodically to open valve 37, clear up the sediment inside catch box 35, and the filtered impurity of its internal precipitate is taken out,
It is rotated to 2 outside of rectangular box with workbench 12 after process finishing, starts magnetic coupling rodless cylinder 9 and moved along slide bar 5, simultaneously
Electromagnet 10 takes the workpiece processed away, and is moved on bottom plate 3 along slide bar 5, continues to add other workpieces to be processed
Work, the device reduce intensity of workers by the operation of processing unit (plant), by using two grinding wheels collaborations make workpiece by
Dynamic balance is not in the mood for clamping method, improves working efficiency, reduces cost, which is prolonged by dust-extraction unit exclusive segment dust
Long service life of equipment, the device are rinsed heat dissipation to processing unit (plant) by cooling purifying device, prevent dust deposit, be convenient for
Staff clears up afterwards.
The advantages of basic principles and main features and the utility model of the utility model have been shown and described above, one's own profession
The technical staff of industry is it should be appreciated that the present utility model is not limited to the above embodiments, described in above embodiments and description
Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also
It will have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention, the utility model
Claimed range is defined by the appending claims and its equivalent thereof.
Claims (6)
1. a kind of novel diamond alloy grinding tool intelligence blade grinding machine, including machine table (1), which is characterized in that the machine table (1)
It is equipped with rectangular box (2), machine table (1) side is equipped with feeding device, and the machine table (1) is equipped with processing unit (plant), institute
It states and is equipped with dust-extraction unit in rectangular box (2), the interior bottom of the machine table (1) and be equipped with cooling and purifying below processing unit (plant) and fill
It sets;
The feeding device comprising be arranged in the bottom plate (3) of machine table (1) side, setting in bottom plate (3) side and positioned at leaning on
The horizontal mounting plate (4) of nearly machine table (1) other end, one group of slide bar being arranged at the top of horizontal mounting plate (4) inner surface
(5), setting is fixedly connected with slide bar (5) respectively at machine table (1) front side surface and front side surface both ends block (6), respectively
Rectangular slab (8) that the sliding block (7) that is arranged on slide bar (5), upper surface are fixedly connected with sliding block (7) bottom is inserted into rectangular slab
(8) the magnetic coupling rodless cylinder (9) on, upper surface are fixedly connected on the electromagnet (10) of magnetic coupling rodless cylinder (9) bottom, set
Set multiple edging wheels on bottom plate (3);
The processing unit (plant) comprising be arranged in rectangular box (2) front side surface and the processing mouth above machine table (1)
(11), it is arranged in the workbench (12) of machine table (1) upper surface and partial penetration processing mouth (11), is arranged on workbench (12)
Station to be processed (13), be arranged on workbench (12) and positioned at station to be processed (13) opposite side loading and unloading station
(14), setting the interior front side surface of rectangular box (2) and in the cutterhead above processing mouth (11) side wheel (15), be arranged in square
Shape case (2) side and the No.1 for being located at bottom plate (3) opposite side are open (16), are inserted into No.1 opening (16) and the other end prolongs
Extend to the extension slot (17) on the outside of rectangular box (2), setting divides in one group of support bar (18) of extension slot (17) inner surface, both sides
The No.1 link block (19) that is not connected with support bar (18), setting are open in No.1 link block (19) upper surface and positioned at No.1
(16) the No.1 grinding wheel motor (20), setting on the outside of are in No.1 link block (19) lower surface and outside the mill in rectangular box (2)
Disc grinding wheel (21), setting are on rear side of the rectangular box (2) and the other end extends to outer No. two link blocks (22) of rectangular box (2), sets
It sets No. two link block (22) upper surfaces and is located at No. two grinding wheel motors (23) of outer surface on rear side of rectangular box (2), setting two
Number link block (22) lower surface and the face grinding grinding wheel (24) in rectangular box (2);
The dust-extraction unit comprising rectangular box (2) side surface and positioned at close to bottom plate (3) side be equipped with suction inlet (25), one
End is fixedly connected on the dust gathering arrester (26) being fixedly connected on the outside of rectangular box (2) and with suction inlet (25), is fixedly connected on dust gathering arrester
(26) dust leg (27) of the other end;
The cooling purifying device comprising be arranged in machine table (1) and be located at the liquid reserve tank (28) of processing unit (plant) bottom, set
It sets the cover board (29) at the top of liquid reserve tank (28), the No.1 liquid outlet (30) being arranged on cover board (29), be arranged in cover board (29)
Suction pump (31) that upper and one end is connected with No.1 liquid outlet (30), one end are fixedly connected and separately with suction pump (31) other end
One end extends to jet pipe (32) in rectangular box (2), setting in jet pipe (32) other end and is located at rectangular box (2) internal attachment
The nozzle (33) of top, the supporting rack (34) being arranged in machine table (1), the catch box (35) being arranged in supporting rack (34),
It is arranged in the dust guiding tube (36) of catch box (35) bottom, the valve (37) being arranged on dust guiding tube (36), setting in rectangular box (2)
Interior and taper dust bucket (38) below the processing unit (plant), setting are in taper dust bucket (38) bottom and another with disposal box phase
The collector tube (39) of connection, the No.1 strainer (40) being arranged in catch box (35), setting are in catch box (35) and are located at one
No. two strainers (42), one end above number strainer (40) are fixedly connected with (35) one side roof part of catch box and the other end and liquid reserve tank
(28) bottom is connected conduit (43), setting machine table (1) side surface cabinet door (44).
2. a kind of novel diamond alloy grinding tool intelligence blade grinding machine according to claim 1, which is characterized in that the processing
Dustproof shade (45) is equipped at the top of mouth (11) and above workbench (12).
3. a kind of novel diamond alloy grinding tool intelligence blade grinding machine according to claim 1, which is characterized in that the processing
It is respectively equipped with supporting leg (41) at platform (1) bottom four corners.
4. a kind of novel diamond alloy grinding tool intelligence blade grinding machine according to claim 1, which is characterized in that the cutterhead
Interior side wheel (15), cylindrical grinding facet wheel (21) and face grinding grinding wheel (24) are respectively positioned on above workbench (12).
5. a kind of novel diamond alloy grinding tool intelligence blade grinding machine according to claim 1, which is characterized in that described No. two
The filter hole of strainer (42) is less than the filter hole of No.1 strainer (40).
6. a kind of novel diamond alloy grinding tool intelligence blade grinding machine according to claim 1, which is characterized in that the liquid collecting
Case (35) bottom is tapered.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201721870303.4U CN207873906U (en) | 2017-12-26 | 2017-12-26 | A kind of novel diamond alloy grinding tool intelligence blade grinding machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201721870303.4U CN207873906U (en) | 2017-12-26 | 2017-12-26 | A kind of novel diamond alloy grinding tool intelligence blade grinding machine |
Publications (1)
Publication Number | Publication Date |
---|---|
CN207873906U true CN207873906U (en) | 2018-09-18 |
Family
ID=63503786
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201721870303.4U Expired - Fee Related CN207873906U (en) | 2017-12-26 | 2017-12-26 | A kind of novel diamond alloy grinding tool intelligence blade grinding machine |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN207873906U (en) |
-
2017
- 2017-12-26 CN CN201721870303.4U patent/CN207873906U/en not_active Expired - Fee Related
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN107378615A (en) | A kind of machining workbench of automated cleaning | |
CN207873906U (en) | A kind of novel diamond alloy grinding tool intelligence blade grinding machine | |
CN211516309U (en) | Vertical lifting table milling machine for high-precision machining of gears | |
CN203831174U (en) | Milling machine cutting fluid reuse device | |
CN206391689U (en) | A kind of golden steel wire multi-line cutting machine cutting liquid bucket | |
CN211388341U (en) | High-efficient automatic spray formula lathe cleaning equipment | |
CN212371332U (en) | Cutting equipment for machining | |
CN112895166A (en) | Glass mold slotting operation device configured on milling machine | |
CN214922781U (en) | Milling machine with internal circulation cooling system | |
CN213437440U (en) | Flushing device of vertical milling machine | |
CN215941767U (en) | Dust collector for spark machine | |
CN212494213U (en) | Carbide saw blade cleaning equipment | |
CN213258591U (en) | Polishing equipment for precise metal structural part | |
CN219311668U (en) | Granite processing is with side cutting machine convenient to adjust | |
CN219170315U (en) | Work feeding device of discharging end face milling machine | |
CN214925932U (en) | Crystal brick automatic cutting machine with cleaning function | |
CN218799370U (en) | Cooling device of die production milling machine | |
CN210879024U (en) | Precise linear guide rail grinding machine for gantry | |
CN220481052U (en) | Milling machine sweeps cleaning device | |
CN211992380U (en) | Polishing lathe with water cooling function | |
CN218903952U (en) | Plasma cutting machine with directional cutting | |
CN216939779U (en) | Cooling device for building material processing | |
CN213615683U (en) | Generator oil pan end face abrasive machining device | |
CN216633634U (en) | Numerical control cutting mechanism is used in dysmorphism processing | |
CN209334829U (en) | Horizontal internal broaching machine is used in a kind of production of sprocket wheel |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180918 Termination date: 20191226 |
|
CF01 | Termination of patent right due to non-payment of annual fee |