CN111693402A - Automatic measuring device for geometric density of uranium dioxide core block - Google Patents
Automatic measuring device for geometric density of uranium dioxide core block Download PDFInfo
- Publication number
- CN111693402A CN111693402A CN202010413137.5A CN202010413137A CN111693402A CN 111693402 A CN111693402 A CN 111693402A CN 202010413137 A CN202010413137 A CN 202010413137A CN 111693402 A CN111693402 A CN 111693402A
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- Prior art keywords
- station
- sliding table
- assembly
- axis sliding
- measuring station
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- OOAWCECZEHPMBX-UHFFFAOYSA-N oxygen(2-);uranium(4+) Chemical group [O-2].[O-2].[U+4] OOAWCECZEHPMBX-UHFFFAOYSA-N 0.000 title claims abstract description 17
- 239000000463 material Substances 0.000 claims abstract description 67
- 239000008188 pellet Substances 0.000 claims abstract description 28
- FCTBKIHDJGHPPO-UHFFFAOYSA-N uranium dioxide Inorganic materials O=[U]=O FCTBKIHDJGHPPO-UHFFFAOYSA-N 0.000 claims abstract description 13
- 238000007599 discharging Methods 0.000 claims abstract description 11
- 210000000078 claw Anatomy 0.000 claims description 27
- 238000000034 method Methods 0.000 claims description 25
- 238000005259 measurement Methods 0.000 claims description 14
- 230000003287 optical effect Effects 0.000 claims description 7
- 239000004557 technical material Substances 0.000 claims description 5
- 238000003466 welding Methods 0.000 claims description 2
- 238000001514 detection method Methods 0.000 abstract description 5
- 239000000446 fuel Substances 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N9/00—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J11/00—Manipulators not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J15/00—Gripping heads and other end effectors
- B25J15/08—Gripping heads and other end effectors having finger members
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N9/00—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
- G01N9/02—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by measuring weight of a known volume
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Robotics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
The invention relates to the technical field of fuel pellet performance detection, and particularly discloses an automatic measuring device for geometric density of a uranium dioxide pellet, which comprises a feeding assembly, a material moving assembly, a quality measuring station, a size measuring station, a blanking assembly and a chassis; the feeding assembly, the quality measuring station, the size measuring station and the discharging assembly are sequentially arranged on the chassis from left to right; the material moving assembly is arranged on the chassis and is positioned on the front sides of the quality measuring station and the size measuring station; the feeding assembly is used for providing materials, and the material moving assembly is used for sequentially moving the materials from the feeding assembly to the quality measuring station, the size measuring station and the discharging assembly; measuring the quality of the core block through a quality measuring station; measuring the size of the core block through a size measuring station; the tested pellets are stored on a blanking assembly. By adopting the device to measure the core block, the measured data can be displayed in real time and automatically collected, and the detection efficiency is greatly improved.
Description
Technical Field
The invention belongs to the technical field of fuel pellet performance detection, and particularly relates to an automatic measuring device for geometric density of a uranium dioxide pellet.
Background
The current measurement of the geometric density of the uranium dioxide core block mainly adopts a contact type measuring method, and the measurement is carried out by holding the core block by hand. The measuring equipment adopts a grating ruler, the fastest measuring speed is only 1.5 blocks/min, and the measuring efficiency is low. And from durable perspective, the grating ruler is extremely easy to wear and damage, the equipment repair rate is high, and the improvement of the detection efficiency is also restricted.
Therefore, it is necessary to design an automatic measuring device for geometric density of uranium dioxide pellets to solve the above problems.
Disclosure of Invention
The invention aims to provide an automatic measuring device for the geometric density of a uranium dioxide core block, which realizes automatic feeding, discharging and measuring of the diameter, height, mass and geometric density of the core block.
The technical scheme of the invention is as follows:
an automatic measuring device for geometric density of a uranium dioxide pellet comprises a feeding assembly, a material moving assembly, a quality measuring station, a size measuring station, a discharging assembly and a chassis;
the feeding assembly, the quality measuring station, the size measuring station and the discharging assembly are sequentially arranged on the chassis from left to right;
the material moving assembly is arranged on the chassis and is positioned on the front sides of the quality measuring station and the size measuring station;
the feeding assembly is used for providing materials, and the material moving assembly is used for sequentially transferring the materials from the feeding assembly to the quality measuring station, the size measuring station and the discharging assembly; measuring the quality of the core block through a quality measuring station; measuring the size of the core block through a size measuring station; the tested pellets are stored on a blanking assembly.
The feeding assembly comprises a technological tray A, a section bar, an X-axis sliding table A, a cylinder push rod, a feeding station and a Y-axis sliding table A;
the Y-axis sliding table A is fixedly arranged on the chassis, and the process material tray A is arranged on the Y-axis sliding table A and can move back and forth along the Y-axis sliding table A;
placing cylindrical pellets on the technological tray A;
the section bar is of a door-shaped structure and is positioned behind the process material tray A, and vertical bars on two sides of the section bar are fixed on the chassis;
the X-axis sliding table A is connected with the cross rod of the section bar in a sliding manner and can move left and right along the cross rod of the section bar;
the feeding station is positioned on the right side of the process material tray A;
the cylinder push rod is fixedly arranged on the X-axis sliding table A, the bottom of the cylinder push rod is in contact with the core block on the technological material tray A, and the core block can be pushed to transversely move to a feeding station from left to right on the technological material tray A.
The size measuring station comprises a parallel light source, a transparent measuring table, an optical telecentric lens, an area array CCD and a supporting rod;
the bottom end of the supporting rod is fixed on the chassis through a screw;
the parallel light source is arranged at the top of the supporting rod and used for providing parallel light rays;
the transparent measuring table is arranged in the middle of the supporting rod and used for placing a material to be measured;
the optical telecentric lens and the area array CCD are arranged at the bottom of the supporting rod and used for material projection and collection.
The blanking assembly comprises a process material tray B, Y shaft sliding table B, a material pushing rod and a blanking station;
the Y-axis sliding table B is fixed on the chassis, and the process material tray B is arranged on the Y-axis sliding table B, can move back and forth along the Y-axis sliding table B and is used for storing detected materials;
the blanking station is positioned on the left side of the process material tray B, is fixed on the bottom plate through a screw and is used for receiving the transferred core blocks;
the material pushing rod is positioned on the left side of the blanking station, is fixed on the chassis through a screw and is used for pushing the core blocks on the blanking station to enter the technical material tray B.
And a balance is arranged on the mass measuring station.
The material moving assembly comprises a mechanical arm, a gas claw and an X-axis sliding table B;
the X-axis sliding table B is fixed on the chassis by screws, the mechanical arm is connected with the X-axis sliding table B in a welding manner, and the mechanical arm can be driven to move left and right through the X-axis sliding table B;
the pneumatic claw is fixedly connected with the mechanical arm, can move left and right under the driving of the mechanical arm, and is pneumatically controlled to move up and down, so that the positioning of the pneumatic claw and the grabbing and transferring of materials are realized.
The four groups of mechanical arms are arranged in parallel at equal intervals and are respectively welded and connected with the X-axis sliding table B, and the four groups of mechanical arms can be driven to synchronously move left and right through the X-axis sliding table B;
the four groups of air claws are fixedly connected with the four groups of mechanical arms through screws respectively, can move left and right under the driving of the mechanical arms, and move up and down under the pneumatic control, so that the positioning of the air claws and the material grabbing and transferring are realized.
The position of the group of the gas claws at the leftmost side corresponds to the feeding assembly, and the core blocks on the feeding assembly can be grabbed; the position of the second group of gas claws on the left side corresponds to the mass measurement station, and the core block can be placed on the mass measurement station to realize the mass measurement of the core block; the position of the third group of gas claws on the left side corresponds to the size measuring station, and the core block can be placed on the size measuring station to realize the size measurement of the core block; the rightmost set of air jaws corresponds in position to the blanking assembly and can transfer the pellets to the blanking assembly.
The invention has the following remarkable effects:
the device of the invention is adopted to measure the core block, and the diameter, the height and the quality of the core block can be automatically measured and the geometric density can be calculated only by horizontally placing the core block sample in the material tray; the measured data can be displayed in real time and automatically collected, and the detection efficiency is greatly improved.
Drawings
FIG. 1 is a schematic view of the apparatus of the present invention;
FIG. 2 is a schematic view of a loading assembly;
FIG. 3 is a schematic view of a sizing station;
FIG. 4 is a schematic view of a blanking assembly
FIG. 5 is a schematic view of a material transfer assembly;
in the figure: 1. a feeding assembly; 2. a material moving component; 3. a quality measurement station; 4. a dimension measuring station; 5. a blanking assembly; 6. a chassis; 1-1, a process material tray A; 1-2. section bar; 1-3. an X-axis sliding table A; 1-4, cylinder push rod; 1-5, a feeding station; 1-6Y-axis slipways; 2-1, a mechanical arm; 2-2. air claw; 2-3. an X-axis sliding table B; 4-1. a collimated light source; 4-2, a transparent measuring table; 4-3, an optical telecentric lens; 4-4. area array CCD; 4-5. supporting rods; 5-1, a process material tray B; 5-2. Y-axis slipway B; 5-3, a material pushing rod; and 5-4, a blanking station.
Detailed Description
The invention is described in further detail below with reference to the figures and the embodiments.
The automatic measuring device for the geometric density of the uranium dioxide pellet shown in fig. 1 comprises a feeding assembly 1, a moving assembly 2, a quality measuring station 3, a size measuring station 4, a discharging assembly 5 and a chassis 6.
The feeding assembly 1, the quality measuring station 3, the size measuring station 4 and the discharging assembly 5 are sequentially arranged on the chassis 6 from left to right. The material moving assembly 2 is arranged on the chassis 6 and is positioned at the front sides of the quality measuring station 3 and the size measuring station 4.
As shown in FIG. 2, the feeding assembly 1 comprises a process tray A1-1, a section bar 1-2, an X-axis sliding table A1-3, a cylinder push rod 1-4, a feeding station 1-5 and a Y-axis sliding table A1-6.
The Y-axis sliding table A1-6 is fixedly arranged on the chassis 6 by screws, and the process material tray A1-1 is arranged on the Y-axis sliding table A1-6 and can move back and forth along the Y-axis sliding table A1-6. Cylindrical pellets are placed on the process tray A1-1.
The section bar 1-2 is in a structure like a Chinese character 'men' and is positioned behind the technical material tray A1-1, and vertical bars on two sides of the section bar 1-2 are fixed on the chassis 6 by screws. The X-axis sliding table A1-3 is connected with the cross bar of the section bar 1-2 in a sliding manner and can move left and right along the cross bar of the section bar 1-2.
The feeding station 1-5 is positioned at the right side of the process tray A1-1.
The cylinder push rod 1-4 is fixedly arranged on the X-axis sliding table A1-3 through a screw, the bottom of the cylinder push rod 1-4 is contacted with the pellet on the process material tray A1-1, and the pellet can be pushed to transversely move to the feeding station 1-5 from left to right on the process material tray A1-1.
And a balance is arranged on the mass measuring station 3 and is used for measuring the mass of the core blocks.
As shown in FIG. 3, the dimension measuring station 4 comprises a parallel light source 4-1, a transparent measuring table 4-2, an optical telecentric lens 4-3, an area array CCD4-4 and a support rod 4-5.
The bottom ends of the support rods 4-5 are fixed on the chassis 6 through screws.
The parallel light source 4-1 is arranged at the top of the support rod 4-5 and used for providing parallel light rays; the transparent measuring table 4-2 is arranged in the middle of the supporting rod 4-5 and used for placing a material to be measured; the optical telecentric lens 4-3 and the area array CCD4-4 are arranged at the bottom of the support rod 4-5 and used for material projection and collection.
As shown in FIG. 4, the blanking assembly 5 comprises a process tray B5-1, a Y-axis sliding table B5-2, a material pushing rod 5-3 and a blanking station 5-4.
The Y-axis sliding table B5-2 is fixed on the chassis 6 by screws, and the process material tray B5-1 is arranged on the Y-axis sliding table B5-2 and can move back and forth along the Y-axis sliding table B5-2 for storing the detected materials.
The blanking station 5-4 is positioned at the left side of the process material tray B5-1 and is fixed on the bottom plate 6 through screws and used for receiving the core blocks transferred by the air claw 2-2.
The material pushing rod 5-3 is positioned at the left side of the blanking station 5-4, is fixed on the chassis 6 through a screw and is used for pushing the core blocks on the blanking station 5-4 to enter the technical material tray B5-1.
As shown in FIG. 5, the material moving assembly 2 comprises a mechanical arm 2-1, an air claw 2-2 and an X-axis sliding table B2-3.
The X-axis sliding table B2-3 is fixed on the chassis 6 through screws, the four groups of mechanical arms 2-1 are arranged in parallel at equal intervals and are respectively welded with the X-axis sliding table B2-3, and the four groups of mechanical arms 2-1 can be driven to synchronously move left and right through the X-axis sliding table B2-3.
The four groups of the air claws 2-2 are respectively fixedly connected with the four groups of mechanical arms 2-1 through screws, can move left and right under the driving of the mechanical arms 2-1, and move up and down under the pneumatic control, so that the positioning, material grabbing and transferring of the air claws 2-2 are realized.
The position of a group of gas claws 2-2 at the leftmost side corresponds to the feeding station 1-5, and the gas claws can grab the core blocks on the feeding station 1-5; the position of the second group of air claws 2-2 on the left side corresponds to the mass measuring station 3, and the pellet can be placed on a balance of the mass measuring station 3 to realize the mass measurement of the pellet; the position of the third group of air claws 2-2 on the left side corresponds to the size measuring station 4, and a core block can be placed on the transparent measuring table 4-2 to realize the size measurement of the core block; the rightmost group of air claws 2-2 corresponds to the blanking station 5-4, and can transfer the core blocks to the blanking station 5-4.
Claims (8)
1. The utility model provides a uranium dioxide pellet geometric density automatic measuring device which characterized in that: comprises a feeding assembly (1), a material moving assembly (2), a quality measuring station (3), a size measuring station (4), a discharging assembly (5) and a chassis (6);
the feeding assembly (1), the quality measuring station (3), the size measuring station (4) and the discharging assembly (5) are sequentially arranged on the chassis (6) from left to right;
the material moving assembly (2) is arranged on the chassis (6) and is positioned on the front sides of the quality measuring station (3) and the size measuring station (4);
the feeding assembly (1) is used for providing materials, and the material moving assembly (2) is used for sequentially transferring the materials from the feeding assembly (1) to the quality measuring station (3), the size measuring station (4) and the discharging assembly (5); the quality of the core block is measured through a quality measuring station (3); carrying out size measurement on the core block through a size measuring station (4); the detected pellets are stored on a blanking assembly (5).
2. An automatic measuring device of geometric density of uranium dioxide pellets according to claim 1, characterized in that: the feeding assembly (1) comprises a technical material tray A (1-1), a section bar (1-2), an X-axis sliding table A (1-3), a cylinder push rod (1-4), a feeding station (1-5) and a Y-axis sliding table A (1-6);
the Y-axis sliding table A (1-6) is fixedly arranged on the chassis (6), and the process material tray A (1-1) is arranged on the Y-axis sliding table A (1-6) and can move back and forth along the Y-axis sliding table A (1-6);
a cylindrical pellet is placed on the process material tray A (1-1);
the section bar (1-2) is of a structure like a Chinese character 'men', is positioned behind the process material tray A (1-1), and vertical bars on two sides of the section bar (1-2) are fixed on the chassis (6);
the X-axis sliding table A (1-3) is connected with the cross rod of the section bar (1-2) in a sliding manner and can move left and right along the cross rod of the section bar (1-2);
the feeding station (1-5) is positioned on the right side of the process material tray A (1-1);
the cylinder push rod (1-4) is fixedly arranged on the X-axis sliding table A (1-3), the bottom of the cylinder push rod (1-4) is in contact with the core block on the technological material tray A (1-1), and the core block can be pushed to transversely move to the feeding station (1-5) from left to right on the technological material tray A (1-1).
3. An automatic measuring device of geometric density of uranium dioxide pellets according to claim 1, characterized in that: the size measuring station (4) comprises a parallel light source (4-1), a transparent measuring table (4-2), an optical telecentric lens (4-3), an area array CCD (4-4) and a support rod (4-5);
the bottom ends of the supporting rods (4-5) are fixed on the chassis (6) through screws;
the parallel light source (4-1) is arranged at the top of the support rod (4-5) and used for providing parallel light rays;
the transparent measuring table (4-2) is arranged in the middle of the supporting rod (4-5) and used for placing a material to be measured;
the optical telecentric lens (4-3) and the area array CCD (4-4) are arranged at the bottom of the support rod (4-5) and used for material projection and collection.
4. An automatic measuring device of geometric density of uranium dioxide pellets according to claim 1, characterized in that: the blanking assembly (5) comprises a process material tray B (5-1), a Y-axis sliding table B (5-2), a material pushing rod (5-3) and a blanking station (5-4);
the Y-axis sliding table B (5-2) is fixed on the chassis (6), and the process material tray B (5-1) is arranged on the Y-axis sliding table B (5-2) and can move back and forth along the Y-axis sliding table B (5-2) for storing the detected materials;
the blanking station (5-4) is positioned at the left side of the process material tray B (5-1), is fixed on the bottom plate (6) through screws and is used for receiving the transferred core blocks;
the material pushing rod (5-3) is positioned on the left side of the blanking station (5-4), is fixed on the chassis (6) through a screw and is used for pushing the core blocks on the blanking station (5-4) to enter the technical material tray B (5-1).
5. An automatic measuring device of geometric density of uranium dioxide pellets according to claim 1, characterized in that: a balance is arranged on the mass measuring station (3).
6. An automatic measuring device of geometric density of uranium dioxide pellets according to claim 1, characterized in that: the material moving assembly (2) comprises a mechanical arm (2-1), a gas claw (2-2) and an X-axis sliding table B (2-3);
the X-axis sliding table B (2-3) is fixed on the chassis (6) by screws, the mechanical arm (2-1) is connected with the X-axis sliding table B (2-3) in a welding manner, and the mechanical arm (2-1) can be driven to move left and right through the X-axis sliding table B (2-3);
the pneumatic claw (2-2) is fixedly connected with the mechanical arm (2-1), can move left and right under the drive of the mechanical arm (2-1), and moves up and down under the pneumatic control, so that the positioning of the pneumatic claw (2-2), and the grabbing and transferring of materials are realized.
7. An automatic measuring device of geometric density of uranium dioxide pellets according to claim 6, characterised in that: the four groups of mechanical arms (2-1) are arranged in parallel at equal intervals and are respectively welded and connected with the X-axis sliding table B (2-3), and the four groups of mechanical arms (2-1) can be driven to synchronously move left and right through the X-axis sliding table B (2-3);
the four groups of air claws (2-2) are respectively fixedly connected with the four groups of mechanical arms (2-1) through screws, can move left and right under the drive of the mechanical arms (2-1), and move up and down under the pneumatic control, so that the positioning, material grabbing and transferring of the air claws (2-2) are realized.
8. An automatic measuring device of geometric density of uranium dioxide pellets according to claim 7, characterized in that: the position of the group of gas claws (2-2) at the leftmost side corresponds to the feeding assembly (1) and can grab the core blocks on the feeding assembly (1); the position of the second group of gas claws (2-2) on the left side corresponds to the mass measurement station (3), and the pellet can be placed on the mass measurement station (3) to realize pellet mass measurement; the position of the third group of gas claws (2-2) on the left side corresponds to the size measuring station (4), and a core block can be placed on the size measuring station (4) to realize the size measurement of the core block; the rightmost group of air claws (2-2) corresponds to the blanking assembly (5) in position and can transfer the core blocks to the blanking assembly (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010413137.5A CN111693402A (en) | 2020-05-15 | 2020-05-15 | Automatic measuring device for geometric density of uranium dioxide core block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010413137.5A CN111693402A (en) | 2020-05-15 | 2020-05-15 | Automatic measuring device for geometric density of uranium dioxide core block |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111693402A true CN111693402A (en) | 2020-09-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010413137.5A Pending CN111693402A (en) | 2020-05-15 | 2020-05-15 | Automatic measuring device for geometric density of uranium dioxide core block |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111693402A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204128509U (en) * | 2014-10-17 | 2015-01-28 | 山西迪迈沃科光电工业有限公司 | A kind of diameter measurement device |
| CN108020159A (en) * | 2017-11-27 | 2018-05-11 | 武汉科技大学 | Shaft part size image collecting device based on machine vision |
| CN208888093U (en) * | 2018-08-22 | 2019-05-21 | 成都术有云视觉科技有限公司 | A kind of pellet geometric density measuring device |
| CN109900206A (en) * | 2019-03-06 | 2019-06-18 | 东莞中科蓝海智能视觉科技有限公司 | A kind of horizontal measuring device |
-
2020
- 2020-05-15 CN CN202010413137.5A patent/CN111693402A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204128509U (en) * | 2014-10-17 | 2015-01-28 | 山西迪迈沃科光电工业有限公司 | A kind of diameter measurement device |
| CN108020159A (en) * | 2017-11-27 | 2018-05-11 | 武汉科技大学 | Shaft part size image collecting device based on machine vision |
| CN208888093U (en) * | 2018-08-22 | 2019-05-21 | 成都术有云视觉科技有限公司 | A kind of pellet geometric density measuring device |
| CN109900206A (en) * | 2019-03-06 | 2019-06-18 | 东莞中科蓝海智能视觉科技有限公司 | A kind of horizontal measuring device |
Non-Patent Citations (1)
| Title |
|---|
| 陆鑫盛 等, 上海：上海科学技术文献出版社 * |
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Application publication date: 20200922 |
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| RJ01 | Rejection of invention patent application after publication |