CN102269641B - Soft package article device for detecting sealability and detection method - Google Patents
Soft package article device for detecting sealability and detection method Download PDFInfo
- Publication number
- CN102269641B CN102269641B CN201110068402.1A CN201110068402A CN102269641B CN 102269641 B CN102269641 B CN 102269641B CN 201110068402 A CN201110068402 A CN 201110068402A CN 102269641 B CN102269641 B CN 102269641B
- Authority
- CN
- China
- Prior art keywords
- soft package
- sensing chamber
- package article
- source
- light source
- 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
Landscapes
- Examining Or Testing Airtightness (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention discloses a kind of soft package article device for detecting sealability, it comprises: sensing chamber, the vacuum extractor that can vacuumize sensing chamber, in vacuum, the thickness of the soft package article in sensing chamber is carried out in real time, the thickness measurement with laser system of continuous detecting, and sealing is carried out to the recognition system of automatic decision.Soft package article device for detecting sealability of the present invention has quantifying defects, defect location, highly sensitive and accurately can detect the advantages such as small gas leakage.Device for detecting sealability adopts optical measuring system, software automatically records and judges integrated technology, is applicable to the on-line continuous production testing of high-level efficiency, robotization.In addition, the invention also discloses a kind of soft package article method for conducting leak test.
Description
Technical field
The present invention relates to a kind of soft package article device for detecting sealability and detection method.
Background technology
The wrappage of flexible-packed battery (as flexible packing lithium ion battery) are generally the aluminum-plastic composite membrane of one deck 60 ~ 150 microns, and its effect is vacuum seal electrode material and electrolytic solution, to completely cut off with atmospheric environment.Any breakage of soft packaging bag all can cause outside air to enter electrolytic solution, pole piece, causes electrolyte leakage and the gas that rises.In the use of flexible-packed battery, the gas that rises, leakage not only can shorten the life-span of battery greatly, but also may damage whole electrical equipment, and therefore, the gas that prevents from rising, leakage are important topics of flexible-packed battery.
Conventional flexible-packed battery method for conducting leak test has hot and humid method, pressurization and vacuum method.Vacuum method, as a kind of method detecting sealing, has been widely used in various food and pharmaceutical packing.The usual inside of this kind of packaging comprises a certain amount of air or other gas (as nitrogen, carbon dioxide), and when vacuumizing, in bag, soft bag is impacted in the volumetric expansion of gas.Traditional vacuum method uses pressure inductor to detect the force value on soft packaging bag surface when vacuumizing, and detects without force value or the little poor bad product of sealing of force value.
But flexible-packed battery seals all under vacuum conditions, in encapsulation back pkt., pressure is less than 10 kPas usually, only has the low-pressure gas of minute quantity in bag.To leave standstill and in charge and discharge process follow-up, electrolytic solution and pole piece also can absorption portion gases, and the gas in actual battery is few and air pressure is very low.Flexible-packed battery is (>10 kPa) under lower vacuum state, and soft packaging bag does not almost expand.Even if there is small seepage, the bulging force of soft packaging bag is also very little.Therefore, traditional vacuum method cannot be applicable to the sealing propertytest of flexible-packed battery.
In view of this, necessaryly a kind of soft package article device for detecting sealability and the detection method that can detect soft package article sealing is fast provided.
Summary of the invention
The object of the invention is to: a kind of pick-up unit and the detection method that can detect soft package article sealing are fast provided.
In order to realize foregoing invention object, the invention provides a kind of soft package article package seal checker, it comprise sensing chamber, the vacuum extractor that can vacuumize sensing chamber, in vacuum to the thickness measurement with laser system that the thickness of the flexible-packed battery in sensing chamber detects, and sealing is carried out to the recognition system of automatic decision.
One as soft package article device for detecting sealability of the present invention is improved, and described thickness measurement with laser system carries out real-time continuous detection to the thickness of the flexible-packed battery in sensing chamber.
One as soft package article device for detecting sealability of the present invention is improved, and described vacuum extractor comprises vacuum source and the vacuum buffer tank between vacuum source, sensing chamber, and the volume of vacuum buffer tank is 10 ~ 100 times of sensing chamber's volume.
One as soft package article device for detecting sealability of the present invention is improved, and described sensing chamber is made up of the glass of all-transparent or tempered glass.
One as soft package article device for detecting sealability of the present invention is improved, and described thickness measurement with laser system comprises light-source system, light source receiving system and is arranged in the slip objective table of described sensing chamber.
One as soft package article device for detecting sealability of the present invention is improved, described light-source system comprises source plane holder, light source levels dancer rools and light source oblique angle holder, source plane holder realizes source plane adjustment in the vertical direction by chute mode, the sliding roller of light source levels can realize the fixing of multiple tracks light-source head, and light source oblique angle holder can realize the adjustment at 0 ~ 90 degree, light source irradiation angle.
One as soft package article device for detecting sealability of the present invention is improved, and described light source receiving system comprises CCD plane holder and CCD holder.
In order to realize foregoing invention object, present invention also offers a kind of soft package article method for conducting leak test, it comprises the following steps: provide and proofread thickness measurement with laser system, to measure the thickness of soft package article; One or several soft package articles are placed in sensing chamber; Sealing detection room is also vacuumized sensing chamber by vacuum extractor, uses the change of thickness measurement with laser systems axiol-ogy soft package article thickness simultaneously; And the sealing of soft package article is judged according to the change of soft package article thickness.
One as soft package article method for conducting leak test of the present invention is improved, and described thickness measurement with laser system comprises light-source system, light source receiving system and is arranged in the slip objective table of described sensing chamber.
One as soft package article method for conducting leak test of the present invention is improved, described light-source system comprises source plane holder, light source levels dancer rools and light source oblique angle holder, source plane holder realizes source plane adjustment in the vertical direction by chute mode, the sliding roller of light source levels can realize the fixing of multiple tracks light-source head, and light source oblique angle holder can realize the adjustment at 0 ~ 90 degree, light source irradiation angle.
One as soft package article method for conducting leak test of the present invention is improved, and described light source receiving system comprises CCD plane holder and CCD holder.
The inner remaining a certain amount of gas of the soft package article that soft package article method for conducting leak test of the present invention utilizes sealing bad, air pressure are higher than the characteristic of normal sealing soft package article, cause pressure in article to be greater than external pressure by rapid vacuumizing, the change of recycling non-contact mode measuring soft package article thickness judges the sealing of article fast.By regulating the position of sensing chamber's final vacuum, vacuum pumping speed and laser rays, can detect the soft package article of different size, different surf zones, and can the sealing defect of Soft Roll article be quantized, be located and selective enumeration.Relative to prior art, soft package article device for detecting sealability of the present invention has quantifying defects, defect location, highly sensitive and accurately can detect the advantages such as small gas leakage.In addition, device for detecting sealability adopts optical measuring system, software automatically records and judges integrated technology, is applicable to the on-line continuous production testing of high-level efficiency, robotization.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, soft package article device for detecting sealability of the present invention and detection method are described in detail.
Fig. 1 is the structural representation of soft package article device for detecting sealability of the present invention, wherein, eliminates vacuum extractor.
Fig. 2 is the schematic diagram of the vacuum extractor of soft package article device for detecting sealability of the present invention.
Fig. 3 is the schematic diagram of the thickness measurement with laser system of soft package article device for detecting sealability of the present invention.
Fig. 4 is the process flow diagram of soft package article method for conducting leak test of the present invention.
When Fig. 5 A to 5C is the flexible-packed battery of soft package article device for detecting sealability of the present invention detection different sealing, the pressure in cell thickness, sensing chamber is with the change curve of detection time.
Embodiment
In order to make, goal of the invention of the present invention, technical scheme and Advantageous Effects are more clear to be understood, below in conjunction with the drawings and specific embodiments, is further elaborated to the present invention.Should be understood that, the embodiment described in this instructions is only used to explain the present invention, is not intended to limit the present invention.
It should be noted that, although only for flexible-packed battery 40, the present invention will be described in this manual, but be understandable that, soft package article device for detecting sealability of the present invention and detection method also can be equally applicable to the quick detection of other soft package article sealing.
Refer to shown in Fig. 1 to Fig. 3, soft package article device for detecting sealability of the present invention comprises: sensing chamber 10, can to the vacuum extractor 20 of sensing chamber 10 rapid vacuumizing, in vacuum to the thickness measurement with laser system 30 that the thickness of the flexible-packed battery 40 (or other soft package articles) in sensing chamber 10 continues, detects in real time, and the sealing of flexible-packed battery 40 is carried out to the recognition system (not shown) of automatic decision.
Please consult especially shown in Fig. 2, vacuum extractor 20 comprises vacuum source 202, vacuum buffer tank 206, the vacuum monitoring form 208 be arranged on vacuum buffer tank 206, and the controlled valve 204 between vacuum source 202 and vacuum buffer tank 206.Controlled valve 204 is the one in solenoid valve, relay and vacuum flow-restrictor, for control and the air limited between vacuum source 202 and vacuum buffer tank 206 flows.Vacuum buffer tank 206 uses variable-volume to design, and for regulating the vacuum ascending velocity in sensing chamber 10, its volume is 10 ~ 100 times of sensing chamber 10 volume.
Sensing chamber 10 is visual hollow sealing container, is to be made up of the glass of full impregnated light or tempered glass materials, so that the change of measurement and monitoring flexible-packed battery 40 thickness in vacuum.Slip objective table 102 is provided with, for carrying one or more flexible-packed battery 40 to be detected in sensing chamber 10.Sensing chamber 10 is tightly connected by pipeline 104 and vacuum buffer tank 206, and the appropriate location of pipeline 104 central authorities is provided with on-off valve 106, and on-off valve 106 is solenoid valve or relay, for the break-make of pilot piping 104 and sensing chamber 10.In addition, sensing chamber 10 is also provided with vacuum monitoring form 108.
Incorporated by reference to consulting shown in Fig. 1 and Fig. 3, thickness measurement with laser service system 30 comprises light-source system 302 and light source receiving system 303.Light-source system 302 comprises source plane holder 304, light source levels dancer rools 306, and light source oblique angle holder 308.Source plane holder 304 realizes source plane adjustment in the vertical direction by chute mode, and light source levels dancer rools 306 can realize the fixing of multiple tracks light-source head, and light source oblique angle holder 308 can realize the adjustment at 0 ~ 90 degree, light source irradiation angle.The light that light-source system 302 sends is the one in the monochromatic light such as laser, infrared light and ruddiness, adopts the mode of single-point, array luminous point or multiple tracks parallel lines to irradiate the surface of flexible-packed battery 40.
Light source receiving system 303 uses single CCD or array CCD system, and for receiving reflection from flexible-packed battery 40 surface or scattered light, light source receiving system 303 comprises CCD plane holder 310 and CCD holder 312.
Below for flexible-packed battery 40, composition graphs 4 and Fig. 5 describe soft package article method for conducting leak test of the present invention in detail: first, according to Fig. 1 to 3 Suo Shi, soft package article device for detecting sealability of the present invention is assembled complete, and guarantee the impermeability of whole pick-up unit; Secondly, before starting detection, proofread thickness measurement with laser system 30, the drift value can fixed according to the result setting of check and correction if desired and a correction coefficient, confirm that reading is correct; Again, flexible-packed battery 40 to be measured is also placed on slip objective table 102 by pull-out slip objective table 102, and flexible-packed battery 40 can be one or more; Subsequently, the slip objective table 102 being loaded with flexible-packed battery 40 is pushed sensing chamber 10 and sealing detection room 10, open on-off valve 106, rapid vacuumizing is carried out to sensing chamber 10, thickness measurement with laser system 30 starts to continue to detect the variation in thickness of flexible-packed battery 40, and records the vacuum tightness of sensing chamber 10, cell thickness with the change (curve as shown in Figure 5) of detection time; Finally, recognition system can count the mean value, maximal value, the end value that need the thickness in region observed to change in time, sentencing spill tag standard and judge whether it is non-defective unit according to setting.Detect complete, sensing chamber 10 is inflated, take out flexible-packed battery 40, pick out the bad flexible-packed battery of sealing 40.
Please consult especially shown in Fig. 5, use the testing result of the sealing of soft package article device for detecting sealability of the present invention detection flexible-packed battery as follows respectively: as shown in Figure 5A, for the gasless flexible-packed battery of ne-leakage, carrying out in the process of rapid vacuumizing to sensing chamber, the thickness of flexible-packed battery changes hardly; As shown in Figure 5 B, inside is had to the flexible-packed battery of a small amount of gas or micro-leakage, carrying out in the process of rapid vacuumizing to sensing chamber, the thickness of flexible-packed battery can increase; As shown in Figure 5 C, for the flexible-packed battery of grade gas leakage, carrying out in the process of rapid vacuumizing to sensing chamber, the thickness of flexible-packed battery can first increase rear decline.
Can find out in conjunction with the above-mentioned detailed description to the specific embodiment of the invention, relative to prior art, soft package article device for detecting sealability of the present invention has quantifying defects, defect location, highly sensitive and accurately can detect the advantages such as small gas leakage.In addition, soft package article device for detecting sealability adopts optical measuring system, software automatically to record and the integrated technology such as judgement, is applicable to the on-line continuous production testing of high-level efficiency, robotization.
According to above-mentioned principle, the present invention can also carry out suitable change and amendment to above-mentioned embodiment.Therefore, the present invention is not limited to embodiment disclosed and described above, also should fall in the protection domain of claim of the present invention modifications and changes more of the present invention.In addition, although employ some specific terms in this instructions, these terms just for convenience of description, do not form any restriction to the present invention.
Claims (8)
1. a soft package article device for detecting sealability, it is characterized in that: described soft package article device for detecting sealability comprise sensing chamber, the vacuum extractor that can vacuumize sensing chamber, in vacuum to the thickness measurement with laser system that the thickness of the soft package article in sensing chamber detects, and sealing is carried out to the recognition system of automatic decision; Described thickness measurement with laser system comprises light-source system, light source receiving system and is arranged in the slip objective table of sensing chamber, and light-source system and light source receiving system are all positioned at outside sensing chamber; Described light-source system comprises source plane holder, light source levels dancer rools and light source oblique angle holder, source plane holder realizes source plane adjustment in the vertical direction by chute mode, light source levels dancer rools can realize the fixing of multiple tracks light-source head, and light source oblique angle holder can realize the adjustment at 0 ~ 90 degree, light source irradiation angle.
2. soft package article device for detecting sealability according to claim 1, is characterized in that: described thickness measurement with laser system carries out real-time continuous detection to the thickness of the soft package article in sensing chamber.
3. soft package article device for detecting sealability according to claim 1, it is characterized in that: described vacuum extractor comprises vacuum source and the vacuum buffer tank between vacuum source, sensing chamber, the volume of vacuum buffer tank is 10 ~ 100 times of sensing chamber's volume.
4. soft package article device for detecting sealability according to claim 1, is characterized in that: described sensing chamber is made up of the glass of all-transparent.
5. soft package article device for detecting sealability according to claim 1, is characterized in that: described sensing chamber is made up of tempered glass.
6. soft package article device for detecting sealability according to claim 1, is characterized in that: described light source receiving system comprises CCD plane holder and CCD holder.
7. a soft package article method for conducting leak test, it comprises the following steps:
There is provided and proofread thickness measurement with laser system, to measure the thickness of soft package article;
One or several soft package articles are placed in sensing chamber;
Sealing detection room is also vacuumized sensing chamber by vacuum extractor, uses the change of thickness measurement with laser systems axiol-ogy soft package article thickness simultaneously; Described thickness measurement with laser system comprises light-source system, light source receiving system and is arranged in the slip objective table of sensing chamber, and light-source system and light source receiving system are all positioned at outside sensing chamber; Described light-source system comprises source plane holder, light source levels dancer rools and light source oblique angle holder, source plane holder realizes source plane adjustment in the vertical direction by chute mode, light source levels dancer rools can realize the fixing of multiple tracks light-source head, and light source oblique angle holder can realize the adjustment at 0 ~ 90 degree, light source irradiation angle; And
The sealing of soft package article is judged according to the change of soft package article thickness.
8. soft package article method for conducting leak test according to claim 7, is characterized in that: described light source receiving system comprises CCD plane holder and CCD holder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110068402.1A CN102269641B (en) | 2011-03-22 | 2011-03-22 | Soft package article device for detecting sealability and detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110068402.1A CN102269641B (en) | 2011-03-22 | 2011-03-22 | Soft package article device for detecting sealability and detection method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102269641A CN102269641A (en) | 2011-12-07 |
| CN102269641B true CN102269641B (en) | 2016-04-20 |
Family
ID=45052006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110068402.1A Active CN102269641B (en) | 2011-03-22 | 2011-03-22 | Soft package article device for detecting sealability and detection method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102269641B (en) |
Families Citing this family (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102636324B (en) * | 2012-04-24 | 2015-06-24 | 无锡凯夫制药有限公司 | Leakage detection device of infusion soft bag |
| CN103424227B (en) * | 2012-05-22 | 2016-08-17 | 万向电动汽车有限公司 | A kind of aluminum plastic film soft-package battery hot sealing process control method |
| JP5867447B2 (en) * | 2013-04-19 | 2016-02-24 | ソニー株式会社 | Film exterior battery inspection apparatus, film exterior battery inspection method, inspection apparatus, and film exterior battery inspection chamber |
| CN103344392B (en) * | 2013-06-27 | 2016-05-11 | 东莞市骏泰精密机械有限公司 | Leak tester soft package lithium battery air tightness detection machine structure |
| KR101950158B1 (en) * | 2013-10-02 | 2019-02-19 | 야마하 파인 테크 가부시키가이샤 | Inspection device and inspection method for sealed packed product |
| CN103832633B (en) * | 2014-03-03 | 2015-09-09 | 中山市奥斯精工机械科技有限公司 | A kind of flexible packing products leak detection method and device |
| CN104568347B (en) * | 2014-12-22 | 2017-05-03 | 浙江中烟工业有限责任公司 | Testing device and testing method for testing leakage of small cigarette case |
| CN105067193B (en) * | 2015-07-30 | 2017-08-29 | 太仓源凯汽车配件有限公司 | A kind of actuator leak detector and its application method |
| CN105890853B (en) * | 2016-04-11 | 2018-05-18 | 中国计量学院 | Swim ring gas leakage on-line measuring device and its detection method |
| CN105910777B (en) * | 2016-06-30 | 2019-03-12 | 河北工业大学 | A kind of sealing propertytest system of aluminium foil blister packaging |
| CN106733717B (en) * | 2016-12-27 | 2019-01-25 | 浙江超威创元实业有限公司 | A method of detection soft package lithium battery is damaged |
| CN109579905A (en) * | 2017-09-22 | 2019-04-05 | 深圳格林德能源集团有限公司 | A kind of polymer Li-ion battery leakage characterization processes |
| CN108645561A (en) * | 2018-06-01 | 2018-10-12 | 西安西电变压器有限责任公司 | Vacuum degree harvester, vacuum-degree monitoring component and method |
| CN110608860A (en) * | 2019-09-05 | 2019-12-24 | 无锡格林司通科技有限公司 | Method for detecting air tightness of soft package battery |
| CN110608861A (en) * | 2019-09-10 | 2019-12-24 | 深圳市誉辰自动化设备有限公司 | Soft package battery sealing performance detection method and device |
| CN112781785A (en) * | 2019-10-23 | 2021-05-11 | 洛阳储变电系统有限公司 | Method for testing internal vacuum degree of soft package battery and quality control method of soft package battery |
| CN111521354B (en) * | 2020-04-30 | 2022-06-21 | 捷威动力工业嘉兴有限公司 | Method and device for detecting air tightness of battery cell |
| CN111751065A (en) * | 2020-06-30 | 2020-10-09 | 博众精工科技股份有限公司 | Sealing detection device |
| CN112378604A (en) * | 2020-08-19 | 2021-02-19 | 万向一二三股份公司 | Device for detecting leakage condition of soft package power lithium battery and using method thereof |
| CN113138057A (en) * | 2021-03-15 | 2021-07-20 | 万向一二三股份公司 | Soft package battery leakage detection method and system |
| CN113029475B (en) * | 2021-03-30 | 2024-10-29 | 多科智能装备（常熟）有限公司 | Online detection method, system and medium suitable for tightness of flexible package food |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4887457A (en) * | 1988-11-28 | 1989-12-19 | Miles Inc. | Fixture and method of testing for soft package leak integrity |
| EP1333267A1 (en) * | 2002-01-25 | 2003-08-06 | Sepha Limited | Method of leak detection |
| CN101140194A (en) * | 2006-09-07 | 2008-03-12 | 深圳市比克电池有限公司 | Detecting method for flexible packing products air tightness |
| CN101881596A (en) * | 2010-06-09 | 2010-11-10 | 汕头大学 | Machine vision linear array testing device |
-
2011
- 2011-03-22 CN CN201110068402.1A patent/CN102269641B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4887457A (en) * | 1988-11-28 | 1989-12-19 | Miles Inc. | Fixture and method of testing for soft package leak integrity |
| EP1333267A1 (en) * | 2002-01-25 | 2003-08-06 | Sepha Limited | Method of leak detection |
| CN101140194A (en) * | 2006-09-07 | 2008-03-12 | 深圳市比克电池有限公司 | Detecting method for flexible packing products air tightness |
| CN101881596A (en) * | 2010-06-09 | 2010-11-10 | 汕头大学 | Machine vision linear array testing device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102269641A (en) | 2011-12-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102269641B (en) | Soft package article device for detecting sealability and detection method | |
| CN100578176C (en) | Detecting method for flexible packing products air tightness | |
| JP3001820B2 (en) | Container leak test method and apparatus | |
| US6635379B2 (en) | Battery sealing inspection method | |
| CN104236826B (en) | The device for detecting sealability and method of airbag product | |
| US20140326051A1 (en) | Method for detecting a leak on a non-rigid test specimen | |
| CN104568336A (en) | Helium mass spectrometer leak detection method for sealing workpiece | |
| CN101788372A (en) | Gas tightness detection device | |
| EP3690419B1 (en) | System and method for detecting a possible loss of integrity of a flexible bag for biopharmaceutical product | |
| US20040134259A1 (en) | Method for leak testing of electrochemical elements | |
| CN110068429B (en) | Method for testing leakage performance of aerospace composite material component in low-temperature environment | |
| CN110608860A (en) | Method for detecting air tightness of soft package battery | |
| CN103900771A (en) | Method for detecting air impermeability of aluminum alloy rim of motorcycle | |
| CN110207975A (en) | A kind of adjusting of safety valve pressure and package seal checker and method | |
| CN207042878U (en) | A kind of fully-automatic metal packing container air-tightness leak detection apparatus | |
| CN115541145A (en) | Soft package battery air tightness detection device and detection method | |
| CN207717304U (en) | A kind of air leakage detector | |
| CN110196143A (en) | A kind of the helium detection device and helium detection method of steel shell battery | |
| CN110095237A (en) | A kind of leak hunting method of refrigeration system | |
| CN113138057A (en) | Soft package battery leakage detection method and system | |
| CN210269078U (en) | Air tightness measuring device for plastic welding part | |
| CN220322645U (en) | Tightness test system | |
| CN215178461U (en) | Soft-package battery gas tightness detection device | |
| CN218546014U (en) | Detection apparatus for negative pressure equipment validity that leaks hunting and negative pressure system that leaks hunting | |
| CN102866092B (en) | Device and method for detecting air permeability of lithium ion battery diaphragm |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |