CN105837021A - Gradual cracking device for strip-shaped optical glass - Google Patents
Gradual cracking device for strip-shaped optical glass Download PDFInfo
- Publication number
- CN105837021A CN105837021A CN201610358767.0A CN201610358767A CN105837021A CN 105837021 A CN105837021 A CN 105837021A CN 201610358767 A CN201610358767 A CN 201610358767A CN 105837021 A CN105837021 A CN 105837021A
- Authority
- CN
- China
- Prior art keywords
- fore
- optical glass
- row
- shaped optical
- glass
- 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.)
- Granted
Links
- 239000005304 optical glass Substances 0.000 title claims abstract description 25
- 238000005336 cracking Methods 0.000 title abstract 4
- 239000002826 coolant Substances 0.000 claims description 24
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 238000001816 cooling Methods 0.000 abstract description 4
- 239000011521 glass Substances 0.000 description 50
- 238000013467 fragmentation Methods 0.000 description 47
- 238000006062 fragmentation reaction Methods 0.000 description 47
- 230000007547 defect Effects 0.000 description 6
- 230000002093 peripheral effect Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000012530 fluid Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 230000011218 segmentation Effects 0.000 description 4
- 239000004033 plastic Substances 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000002604 ultrasonography Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B33/00—Severing cooled glass
- C03B33/02—Cutting or splitting sheet glass or ribbons; Apparatus or machines therefor
- C03B33/023—Cutting or splitting sheet glass or ribbons; Apparatus or machines therefor the sheet or ribbon being in a horizontal position
- C03B33/033—Apparatus for opening score lines in glass sheets
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
Abstract
The invention relates to a gradual cracking device for strip-shaped optical glass. The gradual cracking device comprises pillar plates which are oppositely arranged, and a lower supporting plate, wherein the pillar plates are arranged above; the lower supporting plate is arranged below; sucking disc pillars are arranged on the pillar plates; the pillar plates are arranged on a horizontal track; the gradual cracking device is characterized in that two rows of arch pillars are configured on the pillar plates; diameters of one row of arch pillars are greater than those of the other row of arch pillars; each row of arch pillars is configured in a line structure and consists of a plurality of arch pillars; the arch pillars are arranged in through holes of the pillar plates and are connected with driving devices; the driving devices are capable of driving the arch pillars to move towards the lower supporting plate; a cooling jacket is arranged on a bottom surface of the lower supporting plate.
Description
Technical field
The present invention relates to a kind of optical glass producing device, particularly relate to a kind of bar shaped optical glass progressively cracker.
Background technology
Optical glass is widely used on various industrial equipment, typically requires the most before use and monolithic glass is divided into fritter be then determined roughing and the polish of shape and structure.In large-scale production process, glass typically require be determined be divided into certain area or volume size.In prior art, the step that optical glass carries out splitting is as follows: first the surface glass in monoblock lancinates out and determines the cut of shape, is then breaking folding along cut, makes glass disconnect along cut.But the disconnected process of breaking of prior art needs one day cut of a cut to break folding one by one, it is impossible to forming the quick of automatization, the many cuts of large area break folding together, so have a strong impact on industrial production efficiency.
Summary of the invention
Instant invention overcomes the deficiencies in the prior art, it is provided that the bar shaped optical glass progressively cracker of a kind of simple in construction.
For reaching above-mentioned purpose, the technical solution used in the present invention is: a kind of bar shaped optical glass progressively cracker, including: the post plate being oppositely arranged and circular bottom plate, described post plate is disposed over, described bottom plate is arranged below, it is provided with sucker post on described post plate, described post plate is arranged in horizontal rail, it is characterized in that, it is placed with two row's fore-sets on described post plate, the diameter of one row's fore-set is more than the diameter of another row's fore-set, often row's fore-set is arranged according to linear structure, often row's fore-set is made up of several fore-sets, described fore-set is arranged in the through hole of post plate, described fore-set is respectively connected with driving means, described driving means can drive fore-set to move towards described bottom plate；
Described bottom plate bottom surface is provided with coolant jacket.
In a preferred embodiment of the present invention, being provided with the pipeline of arrangement of spiraling in described coolant jacket, described pipeline forms coolant circulation line by the pump housing.
In a preferred embodiment of the present invention, described driving means is all connected with controlling device.
In a preferred embodiment of the present invention, described driving means is cylinder, and described cylinder can drive described compression leg or described fore-set along self axially-movable.
In a preferred embodiment of the present invention, described bottom plate upper surface posts cushion rubber layer.
In a preferred embodiment of the present invention, described bottom plate is provided with Vltrasonic device.
The present invention solves defect present in background technology, and the present invention possesses following beneficial effect:
(1) first the cut of needs (score line mainly processed) is marked at optical glass surface according to predetermined segmented shape, first temperature is reduced by temperature control line, then by the edge of a straight line score line and bottom plate to it, sucker post is pressed down and is fixed on bottom plate by glass, the fore-set of row's straight line arrangement that outer layer is relatively large in diameter applies a suitable pressure pressure holding in the neighboring of optical glass crude green body and inner periphery, and then the most slowly extruding glass makes glass deform upon but does not break disconnected, the fore-set of row's straight line arrangement that internal layer diameter is less applies pressure, until breaking disconnected.Outer layer applies preliminary bigger main pressure, and internal layer applies less pressure, it is ensured that pressure is slowly increased, lucky breaking disconnected instantaneous pressure, will not apply other positions of bigger pressure influence because of moment.
(2) by cut-cooling-applying deformational stress, three's effect superposition, can the most smooth high-quality broken glass.If be enough to cause the stress of glass fragmentation faced only by pre-add disposable after cut if, fragmentation energies is higher, the energy that fragmentation produces can involve peripheral glass, and glass segmentation there will be a large amount of unexpected fragmentation, does not carries out being substandard products along cut at fragmentation.If gradually lowered the temperature, then by the method applying stress, glass is along with the reduction of temperature, under plastic deformation amount can gradually become, the change of temperature is more mild, and glass fragmentation faced energy release controllability improves, fragmentation energies release is less on the impact of peripheral glass, and defect rate is substantially reduced.
(3) control device by controlling the action of cylinder, it is possible to achieve the synchronicity of same row's fore-set action, gradually form and successively break disconnected mode, thus can accurately control zigzag fashion and gradually form, the complete of zigzag fashion can be kept.
(4) pipeline arranged in coolant jacket, (can be the temperature cold water that is less than 10 degrees Celsius by pumping coolant, the liquid of zero degree can also be less than) form circulation, so coolant jacket plays the effect of the optical glass cooling held by two pieces of deformation plate holders, by controlling the temperature of coolant and controlling the circulation rate of coolant, thermoregulator speed can be controlled.Pump is by management connection coolant jacket and fluid box, and pump can form the liquid circulation between fluid box and coolant jacket.
(5) cushion rubber layer can be with the energy produced during absorbed glass fragmentation, it is ensured that the energy of every cut fragmentation release will not cause the fragmentation at non-cut.
(6) glass is under the conditions of technical scheme, fragmentation Analysis on Mechanism: cut can guide the direction that the release of glass fragmentation faced energy is propagated, and makes glass fragmentation faced move towards along cut；The energy source of fragmentation release mainly has two aspects, one is the energy that the power that fore-set applies produces, another is the energy of molecular chain rupture release at glass fragmentation faced, if using the mode broken glass of deformational stress one-time-reach-place, the energy that in fragmentation energies, stress applies is the biggest, during glass fragmentation faced, energy release is relatively big, and the fragmentation probability at non-cut significantly improves；If cooling, then by the way of applying certain stress, applying stress less, during glass fragmentation faced, energy release is less, and the fragmentation probability at non-cut substantially reduces, and defect rate is greatly reduced.
Accompanying drawing explanation
The present invention is further described with embodiment below in conjunction with the accompanying drawings；
Fig. 1 is the structural representation of the section of the preferred embodiments of the present invention；
Fig. 2 be the preferred embodiments of the present invention with the optical glass blank of cut；
In figure: 1, bottom plate, 2, coolant jacket, 3, post plate, 4, fore-set, 6, sucker post, 7, pipeline, 8, pump, 9, fluid box, 10, optical glass, 11, score line.
Detailed description of the invention
Presently in connection with drawings and Examples, the present invention is further detailed explanation, and these accompanying drawings are the schematic diagram of simplification, and the basic structure of the present invention is described the most in a schematic way, and therefore it only shows the composition relevant with the present invention.
Such as Fig. 1, shown in Fig. 2, a kind of bar shaped optical glass progressively cracker, including: the post plate 3 being oppositely arranged and circular bottom plate 1, post plate 3 is disposed over, bottom plate 1 is arranged below, sucker post 6 it is provided with on post plate 3, post plate 3 is arranged in horizontal rail, it is placed with two row's fore-sets 4 on post plate 3, the diameter of one row's fore-set 4 is more than the diameter of another row's fore-set 4, often row's fore-set 4 is arranged according to linear structure, often row's fore-set 4 is made up of several fore-sets 4, fore-set 4 is arranged in the through hole of post plate 3, fore-set 4 is respectively connected with driving means, driving means can drive fore-set 4 to move towards bottom plate 1；Bottom plate 1 bottom surface is provided with coolant jacket 2.
First mark the cut of needs (score line mainly processed) on optical glass 10 surface according to predetermined segmented shape, first temperature is reduced by temperature control line, then by the edge of a straight line score line and bottom plate 1 to it, sucker post 6 is pressed down and is fixed on bottom plate 1 by glass, the fore-set 4 of row's straight line arrangement that outer layer is relatively large in diameter applies a suitable pressure pressure holding in the neighboring of optical glass 10 crude green body and inner periphery, and then the most slowly extruding glass makes glass deform upon but does not break disconnected, the fore-set 4 of row's straight line arrangement that internal layer diameter is less applies pressure, until breaking disconnected.Outer layer applies preliminary bigger main pressure, and internal layer applies less pressure, it is ensured that pressure is slowly increased, lucky breaking disconnected instantaneous pressure, will not apply other positions of bigger pressure influence because of moment.
By cut-cooling-applying deformational stress, three's effect superposition, can the most smooth high-quality broken glass.If be enough to cause the stress of glass fragmentation faced only by pre-add disposable after cut if, fragmentation energies is higher, the energy that fragmentation produces can involve peripheral glass, and glass segmentation there will be a large amount of unexpected fragmentation, does not carries out being substandard products along cut at fragmentation.If gradually lowered the temperature, then by the method applying stress, glass is along with the reduction of temperature, under plastic deformation amount can gradually become, the change of temperature is more mild, and glass fragmentation faced energy release controllability improves, fragmentation energies release is less on the impact of peripheral glass, and defect rate is substantially reduced.
Being provided with the pipeline 7 of arrangement of spiraling in coolant jacket 2, pipeline 7 forms coolant circulation line 7 by pump 8 body.The pipeline 7 arranged in coolant jacket 2, aspirating coolant by pump 8 (can be the temperature cold water that is less than 10 degrees Celsius, the liquid of zero degree can also be less than) form circulation, so coolant jacket 2 plays the effect that the optical glass 10 held by two pieces of deformation plate holders is lowered the temperature, by controlling the temperature of coolant and controlling the circulation rate of coolant, thermoregulator speed can be controlled.Pump 8 is by management connection coolant jacket 2 and fluid box 9, and pump 8 can form the liquid circulation between fluid box 9 and coolant jacket 2.
Driving means is all connected with controlling device.Control device by controlling the action of cylinder, it is possible to achieve the synchronicity of same row's fore-set 4 action, gradually form and successively break disconnected mode, thus can accurately control zigzag fashion and gradually form, the complete of zigzag fashion can be kept.
Driving means is cylinder, and cylinder can drive compression leg or fore-set 4 along self axially-movable.
Bottom plate 1 upper surface posts cushion rubber layer.Cushion rubber layer can be with the energy produced during absorbed glass fragmentation, it is ensured that the energy of every cut fragmentation release will not cause the fragmentation at non-cut.
It is provided with Vltrasonic device on bottom plate 1.Vltrasonic device can launch ultrasound wave towards optical glass 10, and ultrasound wave can play the potential energy of stress of slow release glass breakage, and fracture during glass breakage at non-cut is even stopped in minimizing.
By cut-cooling-applying deformational stress, three's effect superposition, can the most smooth high-quality broken glass.If be enough to cause the stress of glass fragmentation faced only by pre-add disposable after cut if, fragmentation energies is higher, the energy that fragmentation produces can involve peripheral glass, and glass segmentation there will be a large amount of unexpected fragmentation, does not carries out being substandard products along cut at fragmentation.If gradually lowered the temperature, then by the method applying stress, glass is along with the reduction of temperature, under plastic deformation amount can gradually become, the change of temperature is more mild, and glass fragmentation faced energy release controllability improves, fragmentation energies release is less on the impact of peripheral glass, and defect rate is substantially reduced.
Glass under the conditions of technical scheme, fragmentation Analysis on Mechanism: cut can guide glass fragmentation faced energy release propagate direction, make glass fragmentation faced along cut move towards；The energy source of fragmentation release mainly has two aspects, one is the energy that the power that fore-set 4 applies produces, another is the energy of molecular chain rupture release at glass fragmentation faced, if using the mode broken glass of deformational stress one-time-reach-place, the energy that in fragmentation energies, stress applies is the biggest, during glass fragmentation faced, energy release is relatively big, and the fragmentation probability at non-cut significantly improves；If cooling, then by the way of applying certain stress, applying stress less, during glass fragmentation faced, energy release is less, and the fragmentation probability at non-cut substantially reduces, and defect rate is greatly reduced.
In Fig. 2, strip shaped glass is provided with the cut danger of the linear formula of a plurality of line segmentation, and every straight line is score line, and encircled portion represents the position of fore-set 4 pressure holding.
Desirable embodiment according to the present invention is enlightenment above, and by above-mentioned description, related personnel can carry out various change and amendment completely in the range of without departing from this invention technological thought.The content that the technical scope of this invention is not limited in description, it is necessary to determine technical scope according to right.
Claims (6)
1. a bar shaped optical glass progressively cracker, including: the post plate being oppositely arranged and circular bottom plate, described post plate is disposed over, described bottom plate is arranged below, it is provided with sucker post on described post plate, described post plate is arranged in horizontal rail, it is characterized in that, it is placed with two row's fore-sets on described post plate, the diameter of one row's fore-set is more than the diameter of another row's fore-set, often row's fore-set is arranged according to linear structure, often row's fore-set is made up of several fore-sets, described fore-set is arranged in the through hole of post plate, described fore-set is respectively connected with driving means, described driving means can drive fore-set to move towards described bottom plate；
Described bottom plate bottom surface is provided with coolant jacket.
Bar shaped optical glass progressively cracker the most according to claim 1, it is characterised in that: being provided with the pipeline of arrangement of spiraling in described coolant jacket, described pipeline forms coolant circulation line by the pump housing.
Bar shaped optical glass progressively cracker the most according to claim 1, it is characterised in that: described driving means is all connected with controlling device.
Bar shaped optical glass progressively cracker the most according to claim 3, it is characterised in that: described driving means is cylinder, and described cylinder can drive described compression leg or described fore-set along self axially-movable.
Bar shaped optical glass progressively cracker the most according to claim 1, it is characterised in that: described bottom plate upper surface posts cushion rubber layer.
Bar shaped optical glass progressively cracker the most according to claim 1, it is characterised in that: it is provided with Vltrasonic device on described bottom plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610358767.0A CN105837021B (en) | 2016-05-27 | 2016-05-27 | Bar shaped optical glass gradually cracker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610358767.0A CN105837021B (en) | 2016-05-27 | 2016-05-27 | Bar shaped optical glass gradually cracker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105837021A true CN105837021A (en) | 2016-08-10 |
| CN105837021B CN105837021B (en) | 2019-09-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610358767.0A Active CN105837021B (en) | 2016-05-27 | 2016-05-27 | Bar shaped optical glass gradually cracker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105837021B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108417670A (en) * | 2018-05-15 | 2018-08-17 | 李的根 | A kind of silicon solar cell production technology |
| CN108585466A (en) * | 2018-07-09 | 2018-09-28 | 河南理工大学 | A kind of ultrasonic machining device of optical glass |
| CN110054406A (en) * | 2019-03-13 | 2019-07-26 | 昆山国显光电有限公司 | Breaking device and splinter method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2004051394A (en) * | 2002-07-17 | 2004-02-19 | Nippon Sheet Glass Co Ltd | Method and apparatus for cutting glass plate |
| CN101910075A (en) * | 2008-03-25 | 2010-12-08 | 日本电气硝子株式会社 | Glass plate breaking method and glass plate breaking device |
| CN102249526A (en) * | 2010-04-29 | 2011-11-23 | 康宁股份有限公司 | Methods for separating glass sheets from continuous glass ribbons |
| CN102898012A (en) * | 2011-07-29 | 2013-01-30 | 塔工程有限公司 | Breaking device with adjustable horizontal height and method for adjusting horizontal height thereof |
| CN103347828A (en) * | 2011-02-09 | 2013-10-09 | 旭硝子株式会社 | Glass plate cutting method and glass plate cutting device |
| CN103382080A (en) * | 2012-05-04 | 2013-11-06 | 三星康宁精密素材株式会社 | Breaking apparatus for glass substrate |
| CN103713409A (en) * | 2013-12-27 | 2014-04-09 | 合肥京东方光电科技有限公司 | Liquid crystal display panel cutting device and method |
| CN206089452U (en) * | 2016-05-27 | 2017-04-12 | 苏州微米光学科技有限公司 | Bar optical glass is cracker progressively |
-
2016
- 2016-05-27 CN CN201610358767.0A patent/CN105837021B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2004051394A (en) * | 2002-07-17 | 2004-02-19 | Nippon Sheet Glass Co Ltd | Method and apparatus for cutting glass plate |
| CN101910075A (en) * | 2008-03-25 | 2010-12-08 | 日本电气硝子株式会社 | Glass plate breaking method and glass plate breaking device |
| CN102249526A (en) * | 2010-04-29 | 2011-11-23 | 康宁股份有限公司 | Methods for separating glass sheets from continuous glass ribbons |
| CN103347828A (en) * | 2011-02-09 | 2013-10-09 | 旭硝子株式会社 | Glass plate cutting method and glass plate cutting device |
| CN102898012A (en) * | 2011-07-29 | 2013-01-30 | 塔工程有限公司 | Breaking device with adjustable horizontal height and method for adjusting horizontal height thereof |
| CN103382080A (en) * | 2012-05-04 | 2013-11-06 | 三星康宁精密素材株式会社 | Breaking apparatus for glass substrate |
| CN103713409A (en) * | 2013-12-27 | 2014-04-09 | 合肥京东方光电科技有限公司 | Liquid crystal display panel cutting device and method |
| CN206089452U (en) * | 2016-05-27 | 2017-04-12 | 苏州微米光学科技有限公司 | Bar optical glass is cracker progressively |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108417670A (en) * | 2018-05-15 | 2018-08-17 | 李的根 | A kind of silicon solar cell production technology |
| CN108417670B (en) * | 2018-05-15 | 2019-12-13 | 苏州理合文科技有限公司 | Production process of silicon solar cell |
| CN108585466A (en) * | 2018-07-09 | 2018-09-28 | 河南理工大学 | A kind of ultrasonic machining device of optical glass |
| CN108585466B (en) * | 2018-07-09 | 2020-12-18 | 河南理工大学 | Ultrasonic machining device for optical glass |
| CN110054406A (en) * | 2019-03-13 | 2019-07-26 | 昆山国显光电有限公司 | Breaking device and splinter method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105837021B (en) | 2019-09-06 |
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Effective date of registration: 20190816 Address after: Jiaojiang Jia Zhi Village District of Taizhou City, Zhejiang province 318000 Street No. 368 Applicant after: Yang Cong Address before: 215000 room No. 29, No. 369, Lu Shan Road, high tech Zone, Jiangsu, Suzhou, China Applicant before: Suzhou Weimi Optics Technology Co.,Ltd. |
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Effective date of registration: 20191217 Address after: Room 1207, building 3, entrepreneurial center, No. 82 Huayuan Road, Chuzhou City, Anhui Province Patentee after: Chuzhou Jiagu Information Technology Co.,Ltd. Address before: Jiaojiang Jia Zhi Village District of Taizhou City, Zhejiang province 318000 Street No. 368 Patentee before: Yang Cong |
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Effective date of registration: 20210720 Address after: 239000 No. 40, Mingzhu Road, Mingguang Industrial Park, Chuzhou City, Anhui Province Patentee after: MINGGUANG KCWY ELECTRICAL EQUIPMENTS Co.,Ltd. Address before: 239000 room 1207, building 3, Venture Center, 82 Huayuan Road, Chuzhou City, Anhui Province Patentee before: Chuzhou Jiagu Information Technology Co.,Ltd. |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Strip optical glass progressive cracking device Effective date of registration: 20230803 Granted publication date: 20190906 Pledgee: Mingguang Company limited by guarantee financing Pledgor: MINGGUANG KCWY ELECTRICAL EQUIPMENTS Co.,Ltd. Registration number: Y2023980050842 |