CN113776489A - Corrugated container board angularity detection device - Google Patents
Corrugated container board angularity detection device Download PDFInfo
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- CN113776489A CN113776489A CN202111088839.1A CN202111088839A CN113776489A CN 113776489 A CN113776489 A CN 113776489A CN 202111088839 A CN202111088839 A CN 202111088839A CN 113776489 A CN113776489 A CN 113776489A
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- nut cap
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- detection device
- protective shell
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- 238000001514 detection method Methods 0.000 title claims abstract description 73
- 239000011087 paperboard Substances 0.000 claims abstract description 37
- 230000001681 protective effect Effects 0.000 claims description 23
- 210000000078 claw Anatomy 0.000 claims description 19
- 230000000903 blocking effect Effects 0.000 claims description 8
- 210000001847 jaw Anatomy 0.000 claims description 6
- 239000011111 cardboard Substances 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 4
- 239000004642 Polyimide Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 229920001721 polyimide Polymers 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000009467 reduction Effects 0.000 claims description 2
- 210000003781 tooth socket Anatomy 0.000 claims description 2
- 239000002356 single layer Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000000007 visual effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/32—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring the deformation in a solid
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Abstract
The invention discloses a corrugated board warping degree detection device, which comprises a detection box, a paper board conveying device and a warping degree detection device, wherein the paper board conveying device is arranged at the bottom of the detection box and used for conveying a paper board, and the warping degree detection device is arranged above the paper board conveying device through a lifting device; according to the device, the height of the warping degree detection device can be automatically adjusted according to the thickness of the paperboard, so that the device can be adapted to paperboards with different thicknesses, meanwhile, the warping degree detection device adopts a visual detection mode, the detection mode is simple, the manufacturing cost is low, the device is suitable for small and medium-sized factories, meanwhile, the paperboard conveying device of the device can push the paperboards with different lengths into the warping degree detection device, and the blockage caused by untimely conveying of the paperboards is effectively prevented.
Description
Technical Field
The invention relates to the technical field of detection equipment, in particular to a corrugated board warping degree detection device.
Background
During the production process, the warping of the paperboard is prevented mainly by the experience of workers and the manual monitoring on site; or the laser ranging array is used, the method has the advantages of high speed, high precision and the like, but the manufacturing cost is high, and misjudgment is easily caused by uneven paper superposition, uneven arrangement, large paper board cutting number, S-shaped warping and the like.
Disclosure of Invention
The invention aims to: the warping degree of the corrugated board is obtained through the height of the light vertical rod, so that the production quality is improved, the rejection rate is reduced, the cost is saved, and the corrugated board warping degree detection device is provided.
In order to achieve the purpose, the invention adopts the following technical scheme:
a corrugated board warping degree detection device comprises a detection box, a board conveying device arranged at the bottom of the detection box and used for conveying boards, and a warping degree detection device arranged above the board conveying device through a lifting device;
the lifting device comprises a sliding column and a threaded column which are fixedly arranged on the inner wall of the detection box through a mounting rack, a sliding seat which is sleeved on the sliding column in a sliding mode, a threaded seat which is meshed on the threaded column through threads, a supporting plate of which the top end is connected with the sliding seat, a lead screw which is meshed with the threaded column and is rotationally arranged on the detection box, and a manual turntable which is arranged outside the detection box and is fixedly connected with the lead screw;
the lead screw end runs through the detection case and is connected with outside manual carousel, and runs through the position and be equipped with the bearing base, it has the mounting groove that is used for placing angularity detection device to open in the backup pad, and the mounting groove lower extreme opens the opening that the diameter is less than the mounting groove diameter, this opening intercommunication mounting groove, detection case top surface is opened has the round hole that is used for angularity detection device to pass.
As a further description of the above technical solution:
the paperboard conveying device is integrally arranged at the bottom of the detection box and comprises a shell, a carrier roller which is rotatably arranged in the shell, a speed reducing motor which is arranged outside the shell and fixedly connected with the carrier roller, a gear welded on the carrier roller, a chain meshed with the gear, a conventional chain plate and an adjusting chain plate which are fixedly connected with the chain, and a blocking plate which is arranged on the surface of the adjusting chain plate through a vertical fixing device;
the bottom parts of the conventional chain plate and the adjusting chain plate are fixedly connected with two L-shaped connecting blocks through bolts, the two L-shaped connecting blocks are respectively arranged on two sides of a chain and are fixedly connected with the chain through bolts, and the chain is wound on a gear;
the vertical fixing device is arranged on the surface of the adjusting chain plate and comprises a vertical base, a torsion spring, a limiting baffle and a hand pulling column, wherein a cavity is formed in the vertical base, an open slot is formed in the side wall of the vertical base, the torsion spring is arranged in the open slot, the limiting baffle is connected with the torsion spring, and the hand pulling column is arranged in the vertical base in a sliding mode;
the barrier plate comprises a protective shell, a connecting column and a friction table, wherein the connecting column is fixedly arranged at the bottom of the protective shell and penetrates through the protective shell to extend to the outside of the protective shell, the friction table is arranged at the top end of the connecting column, a cavity is formed inside the protective shell, an opening used for penetrating through the vertical base and the hand-pull column is formed in the protective shell, and the two openings are formed in the protective shell and are arranged at the diagonal positions of the bottom of the protective shell.
As a further description of the above technical solution:
the warping degree detection device comprises a nut cap with threads on the outer portion, a triangular clamping claw meshed with the nut cap and arranged in the nut cap, a light vertical rod used for detecting the warping degree of a paperboard, an air cylinder arranged on a supporting plate, a telescopic rod connected with the air cylinder and a supporting seat used for supporting the telescopic rod and connected with the telescopic rod in a sliding mode, wherein a tooth socket is formed in the telescopic rod and matched with the threads on the nut cap, the triangular clamping claw is fixedly connected with a detection box through a connecting rod, and the triangular clamping claw is matched with a threaded hole in the connecting rod through a threaded rod and fixedly connected with the threaded hole;
the nut cap is rotationally arranged in the mounting groove through the bearing seat, and the light vertical rod sequentially penetrates through a round hole formed in the detection box, the nut cap rotationally arranged in the mounting groove, the triangular clamping claw sleeved in the nut cap and an opening communicated with the mounting groove.
As a further description of the above technical solution:
the nut cap, the triangular clamping claw and the light vertical rod are all made of polyimide materials, anti-skid rubber is arranged on the triangular clamping claw, and anti-skid rubber is arranged at the top of the friction table.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
according to the device, the height of the warping degree detection device can be automatically adjusted according to the thickness of the paperboard, so that the device can be adapted to paperboards with different thicknesses, meanwhile, the warping degree detection device adopts a visual detection mode, the detection mode is simple, the manufacturing cost is low, the device is suitable for small and medium-sized factories, meanwhile, the paperboard conveying device of the device can push the paperboards with different lengths into the warping degree detection device, and the blockage caused by untimely conveying of the paperboards is effectively prevented.
Drawings
Fig. 1 is a schematic structural diagram illustrating a corrugated board warping degree detecting device according to an embodiment of the present invention;
FIG. 2 illustrates a top view of a sheet transport provided in accordance with an embodiment of the present invention;
FIG. 3 illustrates a schematic structural view of a paperboard transport apparatus provided in accordance with an embodiment of the invention;
FIG. 4 is a schematic diagram illustrating a vertical fixture according to an embodiment of the present invention;
FIG. 5 is a schematic view of a combined vertical fixture and baffle plate according to an embodiment of the present invention;
FIG. 6 illustrates a schematic structural view of a nut cap and a triangular clamping jaw provided according to an embodiment of the invention;
FIG. 7 is a schematic view of a lightweight vertical rod, nut cap and triangular clamping jaw combination provided in accordance with an embodiment of the present invention;
fig. 8 is a schematic structural diagram illustrating a nut cap and a triangular clamping jaw provided according to an embodiment of the invention after combination.
Illustration of the drawings:
1. a detection box; 2. a paperboard transport device; 3. a lifting device; 4. a warp degree detection device; 21. a housing; 22. a carrier roller; 23. a reduction motor; 24. a gear; 25. a chain; 26. conventional chain plates; 27. adjusting a chain plate; 28. a vertical fixing device; 29. a damming board; 281. a vertical base; 282. a torsion spring; 283. a limit baffle; 284. c, pulling the column by hand; 291. a protective shell; 292. connecting columns; 293. a rubbing table; 31. a mounting frame; 32. a sliding post; 33. a threaded post; 34. a sliding seat; 35. a threaded seat; 36. a support plate; 37. a screw rod; 38. a manual turntable; 39. mounting grooves; 41. a nut cap; 42. a triangular gripper jaw; 43. a light vertical rod; 44. a cylinder; 45. a telescopic rod; 46. and (4) supporting the base.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a technical scheme that: a corrugated container board angularity detection device: the detection device comprises a detection box 1, a paperboard conveying device 2 arranged at the bottom of the detection box 1 and used for conveying a paperboard, and a warping degree detection device 4 arranged above the paperboard conveying device 2 through a lifting device 3;
the lifting device 3 comprises a sliding column 32 and a threaded column 33 which are fixedly arranged on the inner wall of the detection box 1 through a mounting frame 31, a sliding seat 34 which is sleeved on the sliding column 32 in a sliding way, a threaded seat 35 which is meshed on the threaded column 33 through threads, a sliding seat 34 which is connected with the top end of the sliding seat, a supporting plate 36 of which the tail end is connected with the threaded seat 35, a screw rod 37 which is meshed with the threaded column 33 and is rotationally arranged on the detection box 1, and a manual turntable 38 which is arranged outside the detection box 1 and is fixedly connected with the screw rod 37;
Specifically, as shown in fig. 1 to 8, the paperboard conveying device 2 is integrally arranged at the bottom of the detection box 1, and the paperboard conveying device 2 comprises a shell 21, a carrier roller 22 rotatably arranged inside the shell 21, a speed reducing motor 23 arranged outside the shell 21 and fixedly connected with the carrier roller 22, a gear 24 welded on the carrier roller 22, a chain 25 engaged with the gear 24, a conventional chain plate 26 fixedly connected with the chain 25 and an adjusting chain plate 27, and a blocking plate 29 mounted on the surface of the adjusting chain plate 27 through a vertical fixing device 28;
the bottoms of the conventional chain plates 26 and the adjusting chain plates 27 are fixedly connected with L-shaped connecting blocks through bolts, the two L-shaped connecting blocks are respectively arranged on two sides of the chain 25 and are fixedly connected with the chain 25 through bolts, and the chain 25 is wound on the gear 24;
the vertical fixing device 28 is arranged on the surface of the adjusting chain plate 27, and the vertical fixing device 28 comprises a vertical base 281, a torsion spring 282, a limit baffle 283 and a hand pull column 284, wherein a cavity is formed in the vertical base 281, an open slot is formed in the side wall of the vertical base, the torsion spring 282 is arranged in the open slot, the limit baffle 283 is connected with the torsion spring 282, and the hand pull column 284 is slidably arranged in the vertical base 281;
the barrier plate 29 comprises a protective shell 291, a connecting column 292 fixedly arranged at the bottom of the protective shell 291 and extending to the outside of the protective shell 291 through the protective shell 291, and a friction table 293 arranged at the top end of the connecting column 292, wherein the protective shell 291 is internally provided with a cavity, the protective shell 291 is provided with two openings for passing through a vertical base 281 and a hand pulling column 284, and the two openings are arranged at the diagonal positions at the bottom of the protective shell 291.
Specifically, as shown in fig. 1 to 8, the warpage detection device 4 includes a nut cap 41 with a thread on the outside, a triangular clamping claw 42 engaged with the nut cap 41 and disposed in the nut cap 41, a light vertical rod 43 for detecting the warpage of the paper board, a cylinder 44 disposed on the support plate 36, a telescopic rod 45 connected to the cylinder 44, and a support seat 46 for supporting the telescopic rod 45 and slidably connecting with the telescopic rod 45, wherein a tooth space is formed on the telescopic rod 45, the tooth space is matched with the thread on the nut cap 41, the triangular clamping claw 42 is fixedly connected with the detection box 1 through a connecting rod 47, and the triangular clamping claw 42 is matched and fixedly connected with a threaded hole on the connecting rod 47 through a threaded rod;
the nut cap 41 is rotatably arranged in the mounting groove 39 through a bearing seat, and the light vertical rod 43 sequentially penetrates through a round hole formed in the detection box 1, the nut cap 41 rotatably arranged in the mounting groove 39, the triangular clamping claw 42 sleeved in the nut cap 41 and an opening communicated with the mounting groove 39.
Specifically, as shown in fig. 1 to 8, the nut cap 41, the triangular clamping claw 42 and the light vertical rod 43 are all made of polyimide materials, the triangular clamping claw 42 is provided with anti-skid rubber, and the top of the friction table 293 is provided with anti-skid rubber.
The working principle is as follows: the device is characterized in that a paperboard conveying device 2 arranged in a detection box 1 conveys a paperboard to be detected to a position below a warping degree detection device 4, and a lifting device 3 controls the height of the warping degree detection device 4;
the specific operation process is as follows: when the whole decoration is not in work, an operator inserts the light vertical rod 43 into the circular hole on the detection box 1, and sequentially rotates the nut cap 41 arranged in the installation groove 39, the triangular clamping claw 42 sleeved in the nut cap 41 and the opening communicated with the installation groove 39 until the top end of the light vertical rod 43 contacts the conventional chain plate 26 or the adjusting chain plate 27, then the operator drives the air cylinder 44 to work to drive the telescopic rod 45 to extend, because the tooth spaces are arranged on the telescopic rod 45 and are meshed with the threads on the nut cap 41, and simultaneously the nut cap 41 is rotationally arranged in the installation groove 39, the triangular clamping claw 42 is fixed at the top in the detection box 1 through the connecting rod 47, so that when the nut cap 41 rotates, the connecting rod 47 cannot rotate, and because the tooth spaces on the telescopic rod 45 are larger, the tooth spaces of the nut cap 41 cannot be out of teeth, so the telescopic link 45 removes and can drive nut cap 41 to rotate, and then drive nut cap 41 and rotate, make triangle gripper jaw 42 reach the purpose of the light-duty vertical rod 43 of centre gripping, after light-duty vertical rod 43 was held by the centre gripping, operating personnel rotated manual turntable 38, make lead screw 37 drive screw thread post 33 rotate, thereby drive screw thread seat 35 and upwards remove, and then drive backup pad 36 rebound, the distance of removal can be adjusted according to the measured cardboard thickness of western medicine and
in addition, the blocking plate 29 can be adjusted according to the size of the paperboard, the situation that the paperboard cannot be pushed to advance is prevented, the device is placed into the vertical fixing device 28 after the blocking plate 29 is aligned to the vertical fixing device 28 manually by an operator, then the hand pull column 284 is lifted upwards, the hand pull column 284 is separated from the vertical base 281, at the moment, the limiting baffle 283 arranged on the torsion spring 282 can be automatically popped out, then the hand pull column 284 is put down, the limiting baffle 283 is limited to reset under the action of the torsion spring 282, and when the blocking plate 29 needs to be taken out, the operation is repeated;
after entering the paper board conveying device 2, the paper board is first brought into the adjusting chain plate 27 by the friction table 293, and then pushed by the blocking plate 29 to advance to the warping degree detecting device 4, since the blocking plate 29 is visible and has a very low height, the judgment of the warping degree of the paper board by a worker is not affected.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (4)
1. The utility model provides a corrugated container board angularity detection device which characterized in that: comprises a detection box (1), a paperboard conveying device (2) arranged at the bottom of the detection box (1) and used for conveying a paperboard, and a warping degree detection device (4) arranged above the paperboard conveying device (2) through a lifting device (3);
the lifting device (3) comprises a sliding column (32) and a threaded column (33) which are fixedly installed on the inner wall of the detection box (1) through an installation rack (31), a sliding seat (34) which is sleeved on the sliding column (32) in a sliding mode, a threaded seat (35) which is meshed on the threaded column (33) through threads, a sliding seat (34) which is connected with the top end of the sliding seat, a supporting plate (36) of which the tail end is connected with the threaded seat (35), a screw rod (37) which is meshed with the threaded column (33) and is rotatably arranged on the detection box (1), and a manual turntable (38) which is arranged outside the detection box (1) and is fixedly connected with the screw rod (37);
lead screw (37) end runs through detection case (1) and is connected with outside manual carousel (38), and runs through the position and be equipped with the bearing base, it has mounting groove (39) that are used for placing angularity detection device to open on backup pad (36), and mounting groove (39) lower extreme opens the opening that the diameter is less than the mounting groove diameter, this opening intercommunication mounting groove (39), detection case (1) top surface is opened has the round hole that is used for angularity detection device (4) to pass.
2. The corrugated cardboard warpage detecting device as claimed in claim 1, wherein the cardboard conveying device (2) is integrally disposed at the bottom of the detecting box (1), the cardboard conveying device (2) comprises a housing (21), a carrier roller (22) rotatably disposed inside the housing (21), a reduction motor (23) disposed outside the housing (21) and fixedly connected to the carrier roller (22), a gear (24) welded to the carrier roller (22), a chain (25) engaging the gear (24), a regular chain plate (26) and an adjusting chain plate (27) fixedly connected to the chain (25), and a stopper plate (29) mounted on the surface of the adjusting chain plate (27) by a vertical fixing device (28);
the bottoms of the conventional chain plate (26) and the adjusting chain plate (27) are fixedly connected with two L-shaped connecting blocks through bolts, the two L-shaped connecting blocks are respectively arranged on two sides of the chain (25) and are fixedly connected with the chain (25) through bolts, and the chain (25) is wound on the gear (24);
the vertical fixing device (28) is arranged on the surface of the adjusting chain plate (27), and the vertical fixing device (28) comprises a vertical base (281) with a cavity inside and an open slot on the side wall, a torsion spring (282) arranged in the open slot, a limit baffle (283) connected with the torsion spring (282) and a hand-pull column (284) arranged inside the vertical base (281) in a sliding manner;
the blocking plate (29) comprises a protective shell (291), a connecting column (292) fixedly arranged at the bottom of the protective shell (291) and extending to the outside of the protective shell (291) through the protective shell (291), and a friction table (293) arranged at the top end of the connecting column (292), wherein a cavity is formed inside the protective shell (291), openings for penetrating through a vertical base (281) and a hand pulling column (284) are formed in the protective shell (291), and the openings are two and are arranged at the diagonal positions of the bottom of the protective shell (291).
3. The warp detector according to claim 1, wherein said warp detector is a single-layer detector, the warping degree detection device (4) comprises a nut cap (41) with threads on the outer portion, a triangular clamping claw (42) which is meshed with the nut cap (41) and arranged in the nut cap (41), a light vertical rod (43) used for detecting the warping degree of a paperboard, an air cylinder (44) arranged on a support plate (36), a telescopic rod (45) connected with the air cylinder (44) and a support seat (46) used for supporting the telescopic rod (45) and connected with the telescopic rod (45) in a sliding mode, the telescopic rod (45) is provided with a tooth socket which is matched with the thread on the nut cap (41), the triangular clamping claw (42) is fixedly connected with the detection box (1) through a connecting rod (47), the triangular clamping claw (42) is matched and fixedly connected with a threaded hole on the connecting rod (47) through a threaded rod;
nut cap (41) set up in mounting groove (39) through the bearing frame with rotating, light-duty perpendicular stick (43) pass in proper order set up round hole on detection case (1), rotate nut cap (41) of setting in mounting groove (39), cup joint triangle gripper jaw (42) in nut cap (41) and the opening of intercommunication mounting groove (39).
4. The corrugated board warpage detection device according to claim 1, wherein the nut cap (41), the triangular clamping claw (42) and the light vertical rod (43) are all made of polyimide materials, the triangular clamping claw (42) is provided with anti-slip rubber, and the top of the friction table (293) is provided with anti-slip rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111088839.1A CN113776489B (en) | 2021-09-16 | 2021-09-16 | Corrugated board warpage detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111088839.1A CN113776489B (en) | 2021-09-16 | 2021-09-16 | Corrugated board warpage detection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113776489A true CN113776489A (en) | 2021-12-10 |
| CN113776489B CN113776489B (en) | 2024-05-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111088839.1A Active CN113776489B (en) | 2021-09-16 | 2021-09-16 | Corrugated board warpage detection device |
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| Country | Link |
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| CN (1) | CN113776489B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116147465A (en) * | 2023-04-20 | 2023-05-23 | 泰州新源电工器材有限公司 | High density cardboard warp degree automatic checkout device |
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| CN211651543U (en) * | 2020-03-24 | 2020-10-09 | 武汉华新达饮品技术有限公司 | Bottle embryo angularity measuring device |
| CN112061672A (en) * | 2020-09-03 | 2020-12-11 | 广东尚高科技有限公司 | Plate conveying device |
| CN213564642U (en) * | 2020-08-29 | 2021-06-29 | 延津县博大印刷有限公司 | Paper packing box die-cutting indenting machine with conveying function |
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2021
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108673016A (en) * | 2018-05-30 | 2018-10-19 | 江西江铃底盘股份有限公司 | A kind of automobile drive axle housing casing-tube elastic connection ring fixed length clamping tool |
| KR102027824B1 (en) * | 2018-11-27 | 2019-10-02 | 주식회사 포스코 | Planarity measuring device |
| CN211291298U (en) * | 2020-03-17 | 2020-08-18 | 苏州品汇精密电子有限公司 | A tool for screen angularity detects |
| CN211651543U (en) * | 2020-03-24 | 2020-10-09 | 武汉华新达饮品技术有限公司 | Bottle embryo angularity measuring device |
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| CN116147465A (en) * | 2023-04-20 | 2023-05-23 | 泰州新源电工器材有限公司 | High density cardboard warp degree automatic checkout device |
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Effective date of registration: 20240417 Address after: 529000 Building 2 and 3, No.2, songxiangshan 1st Street, durian Town, Pengjiang district, Jiangmen City, Guangdong Province Applicant after: Jiangmen de'ao paper products Co.,Ltd. Country or region after: China Address before: 405800 Chongqing University of technology, No. 69, Hongguang Avenue, Huaxi street, Banan District, Chongqing Applicant before: Wang Xuao Country or region before: China |
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