CN107584399B - Polishing equipment - Google Patents
Polishing equipment Download PDFInfo
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- CN107584399B CN107584399B CN201710765686.7A CN201710765686A CN107584399B CN 107584399 B CN107584399 B CN 107584399B CN 201710765686 A CN201710765686 A CN 201710765686A CN 107584399 B CN107584399 B CN 107584399B
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Abstract
The invention relates to polishing equipment which is used for polishing a main panel and an edge of an arc-shaped panel and comprises a first stroke assembly, a second stroke assembly and a polishing assembly, wherein the first stroke assembly comprises a first stroke plate, the second stroke assembly comprises a second stroke plate, the polishing assembly comprises a plurality of polishing heads, the plurality of polishing heads penetrate through the first stroke plate and the second stroke plate, the plurality of polishing heads are movably connected to the first stroke plate or the second stroke plate and form swinging points at movable connection positions, and the first stroke plate and the second stroke plate move relatively to drive the plurality of polishing heads to swing around the swinging points respectively, so that the multi-angle polishing of the arc-shaped panel by the polishing heads is realized. The invention has the advantages of in-place polishing of the arc-shaped panel and high polishing efficiency.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the field of polishing mechanical equipment, in particular to polishing equipment.
[ background of the invention ]
With the continuous advancement of science and technology in modern society, particularly the rapid development of electronic products, higher requirements are put on the smoothness of some polished products such as 3D glass panels. Limited by the existing polishing technology, the polished product cannot meet the polishing requirement after being polished, i.e. the polished product has low flatness and insufficient smoothness, and the polishing of part of the product, such as an arc edge, is not in place, so that the yield of the polished product is low.
[ summary of the invention ]
In order to overcome the technical problems in the prior art, the invention provides polishing equipment.
The invention provides a polishing device which is used for polishing a main panel and an edge of an arc-shaped panel and comprises a first stroke component, a second stroke component and a polishing component, wherein the first stroke component comprises a first stroke plate, the second stroke component comprises a second stroke plate, the polishing component comprises a plurality of polishing heads, the plurality of polishing heads penetrate through the first stroke plate and the second stroke plate, the plurality of polishing heads are movably connected to the first stroke plate or the second stroke plate and form swing points at movable connection positions, and the first stroke plate and the second stroke plate move relatively to drive the plurality of polishing heads to swing around the swing points respectively, so that the multi-angle polishing of the arc-shaped panel by the polishing heads is realized.
Preferably, the polishing head is connected with the first stroke plate or the second stroke plate in a rotating shaft manner or through a spring or through a ball joint structure.
Preferably, the polishing head is connected with the first stroke plate through a ball joint structure, and the polishing head is connected with the second stroke plate through a spring.
Preferably, the first stroke plate is provided with a plurality of first through holes for the plurality of polishing heads to pass through, the second stroke plate is provided with a second through hole for the polishing heads to pass through, and when the first stroke plate and the second stroke plate do not move relatively, the first through holes and the second through holes correspond to each other in the height direction.
Preferably, the first stroke assembly further comprises a first stroke driving member and a first ball screw, the first ball screw is connected with the first stroke driving member and the first stroke plate, and the first stroke driving member drives the first stroke plate to reciprocate along a first direction through the first ball screw.
Preferably, the second stroke assembly further comprises a second stroke driving member and a second ball screw, the second ball screw is connected with the second stroke driving member and the second stroke plate, the second stroke driving member drives the second stroke plate to reciprocate along a second direction through the second ball screw, the first direction and the second direction form an included angle, and the included angle is 30-150 degrees.
Preferably, the first stroke assembly further comprises a total bottom plate and a first slide rail, the second stroke assembly further comprises a second slide rail, the first slide rail is arranged on the total bottom plate and extends along the first direction, the first stroke driving piece drives the first stroke plate to move along the first slide rail, the second slide rail is arranged on one side of the first stroke plate different from the total bottom plate and extends along the second direction, and the second stroke driving piece drives the second stroke plate to slide along the second slide rail.
Preferably, the polishing device further comprises a conveying assembly, the conveying assembly is arranged on one side, away from the second stroke assembly, of the first stroke assembly and is used for conveying the arc-shaped panel to the position below the polishing assembly, the conveying assembly comprises a conveying belt and an object stage for placing the arc-shaped panel, and the object stage is arranged on the conveying belt at equal intervals.
Preferably, the conveying assembly further comprises a clamping driving member and a clamping member, the clamping driving member and the clamping member are respectively arranged on two opposite sides of the conveying direction of the conveying belt, the clamping driving member and the clamping member are arranged in a one-to-one correspondence manner, and when the object table is conveyed between the clamping driving member and the clamping member, the clamping driving member pushes the object table to the clamping member so as to clamp the object table between the clamping driving member and the clamping member.
Compared with the prior art, the polishing equipment has the following effects: the invention relates to polishing equipment which is used for polishing a main panel and an edge of an arc-shaped panel and comprises a first stroke assembly, a second stroke assembly and a polishing assembly, wherein the first stroke assembly comprises a first stroke plate, the second stroke assembly comprises a second stroke plate, the polishing assembly comprises a plurality of polishing heads, the plurality of polishing heads penetrate through the first stroke plate and the second stroke plate, the plurality of polishing heads are movably connected to the first stroke plate and/or the second stroke plate and form swinging points at movable connection positions, and the first stroke plate and the second stroke plate move relatively to drive the plurality of polishing heads to swing around the swinging points respectively, so that the multi-angle polishing of the arc-shaped panel by the polishing heads is realized. The invention has the advantages of in-place polishing of the arc-shaped panel and high polishing efficiency.
[ description of the drawings ]
FIG. 1 is a schematic perspective view of a polishing apparatus according to the present invention.
Fig. 2 is a schematic perspective view of the curved panel of the present invention.
Figure 3 is a schematic view of the assembly of the present invention with the transfer assembly engaged.
Fig. 4 is an enlarged schematic view of a portion a of fig. 3.
FIG. 5 is a schematic view of the assembly of the base, the transfer assembly and the first stroke assembly of the present invention.
FIG. 6 is another schematic view of the assembly of the base, the transfer assembly and the first stroke assembly of the present invention.
FIG. 7 is a schematic view of the assembly of the present invention, the transfer assembly, the first stroke assembly and the second stroke assembly.
FIG. 8 is another schematic view of the assembly of the present invention showing the base, the transfer assembly, the first stroke assembly and the second stroke assembly.
FIG. 9 is a schematic view showing another perspective structure of the polishing apparatus of the present invention.
FIG. 10 is a schematic view showing another perspective structure of the polishing apparatus of the present invention.
FIG. 11 is a schematic view showing another perspective structure of the polishing apparatus of the present invention.
[ detailed description ] embodiments
For the purpose of making the object, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1-2, the present invention provides a polishing apparatus 10 for polishing an arc panel with a curvature on the edge, such as a 2.5D/3D arc panel, which may be a glass panel or a ceramic panel, but the present embodiment is described by taking polishing of a glass panel 20 as an example, but not limited to the glass panel 20. The glass panel 20 includes a main panel 21 and an edge 22 surrounding the main panel 21, the main panel 21 and the edge 22 are integrally formed, and the edge 22 is curved in a curve.
The polishing apparatus 10 includes a general base 11, a conveying assembly 12 disposed on the general base 11, a first stroke assembly 13 disposed above the conveying assembly 12, a second stroke assembly 14 disposed on the first stroke assembly 13, a polishing assembly 15 connected to both the first stroke assembly 13 and the second stroke assembly 14, and a manipulating assembly 16. The overall base 11 is substantially rectangular parallelepiped, and defines a length direction of the overall base 11, that is, an X-axis direction shown in fig. 1, as a first direction, a width direction of the overall base 11, that is, a Y-axis direction shown in fig. 1, as a second direction, a height direction of the overall base 11, that is, a Z-axis direction shown in fig. 1, as a third direction, and the first direction and the second direction are perpendicular to each other. It will be appreciated that the first and second directions may be arranged at an angle other than 90 deg., and the angle may be in the range of 30 deg. -150 deg.
Both ends of the overall base 11 in the length direction are loading and unloading areas for loading and unloading the glass panel 20 into and out of the conveying assembly 12. The transfer assembly 12 is disposed on the general base 11, and is configured to carry the glass panel 20 and transfer the glass panel 20 under the polishing assembly 15 along a first direction, the polishing assembly 15 is disposed above the transfer assembly 12, and includes a plurality of polishing heads 151, the polishing heads 151 are pressed down to contact the glass panel 20, and polish the glass panel 20 in a plane in which the first and second directions are located, that is, an XY plane, by rotating relative to the glass panel 20.
Further, the first stroke assembly 13 is connected to the polishing assembly 15 and drives the polishing assembly 15 to reciprocate in the first direction to add one more dimension of polishing to the glass panel 20 in the first direction based on the polishing head 151 rotationally polishing the glass panel 20. The second stroke assembly 14 is connected to the polishing assembly 15 and drives the polishing assembly 15 to reciprocate in the second direction, and on the basis of polishing by the polishing head 151 in a rotating manner and polishing by reciprocating in the first direction, polishing is added to the glass panel 20 in another dimension in the second direction, so that the polishing apparatus 10 can polish the main panel 21 and the edge 22 of the glass panel 20 more in place, and the problem that the main panel 21 and the edge 22, especially the edge 22, are not polished in place or are not polished completely is avoided.
Referring to fig. 3-4, in order to improve the material taking and placing efficiency and the polishing efficiency, two sets of transfer assemblies 12 are disposed on the same base 11, the polishing heads 151 are divided into two sets corresponding to the two sets of transfer assemblies 12, the two sets of transfer assemblies 12 are disposed in parallel, and the two sets of polishing heads 151 are disposed in parallel. A set of polishing heads 151 corresponds to a set of transfer assemblies 12 so that the panel glasses 20 on the two sets of transfer assemblies 12 can be simultaneously picked and placed in the same loading and unloading operation.
As shown in fig. 4, each set of conveyor assemblies 12 includes a conveyor belt 121, a plurality of stages 122, a conveyor drive 123, and a drive wheel 124. The conveyor belt 121 is a closed loop comprising an inner and an outer surface. The object stage 122 is disposed on the outer surface of the transmission belt 121 at equal intervals and used for bearing the glass panel 20, so that the glass panel 20 moves along with the transmission belt 121, the glass panel 20 and the object stage 122 can be fixed by sticking UV glue, and the object stage 122 can also be provided with a groove adapted to the glass panel 20 for accommodating and fixing the glass panel 20. The inner surface of the conveyor belt 121 contacts the transmission wheel 124, and the output shaft of the transmission driving member 123 is connected to the transmission wheel 124 to drive the transmission wheel 124 to rotate, so as to drive the conveyor belt 121, i.e. the object stage 122 and the glass panel 20 to rotate. The transfer drive 123 may be a stepper motor that advances the stage 122 a specific step distance each time, and the specific step distance may be the distance between two adjacent stages 122 or an integer multiple of the distance between two adjacent stages 122.
Further, the transfer assembly 12 further includes a plurality of clamp driving members 125 and a plurality of clamping members 126. The number of the clamping driving members 125 is the same as that of the clamping members 126, the clamping driving members 125 and the clamping members 126 are respectively disposed on two opposite sides of the conveying direction of the conveyor belt 121, and the positions of the clamping driving members 125 and the positions of the clamping members 126 are in one-to-one correspondence, and the distance between two adjacent clamping driving members 125 and the distance between two adjacent clamping members 126 are substantially equal to the distance between two adjacent object stages 122. When the stage 122 is transferred to a position between the clamping driving member 125 and the clamping member 126 by the conveyor belt 121, the clamping driving member 125 pushes the stage 122 toward the clamping member 126 to clamp the stage 122 between the clamping driving member 125 and the clamping member 126, so as to prevent the glass panel 20 on the stage 122 from being displaced when the polishing head 151 polishes the glass panel 20.
Referring to fig. 5-6, the first stroke assembly 13 is used for driving the polishing head 151 to reciprocate in a first direction, and includes a bracket 131, a main base plate 132, a first stroke driving member 133, a first ball screw 134, a first slide rail 135 and a first stroke plate 136. The bracket 131 is connected across the two ends of the overall base 11 in the length direction for supporting the overall bottom plate 132, and the overall bottom plate 132 is fixed on the bracket 131 and covers the conveying assembly 12. The main bottom plate 132 is provided with a main bottom plate through hole 1321 through which the polishing head 151 passes to contact the glass panel 20. Meanwhile, the main base plate 132 is provided with lugs 1322 for placing the first stroke driving member 133 corresponding to the first stroke driving member 133, the lugs 1322 correspond to the first stroke driving member 133 in number one by one, and the first stroke driving member 133 can be adjusted according to the length of the first stroke plate 136.
The first stroke driving member 133 is disposed on the ledge 1322, and its output shaft is connected to the first ball screw 134. The first ball screw 134 has a function of converting a rotational motion into a linear motion; the first ball screw 134 connects the output shaft of the first stroke driving member 133 and the first stroke plate 136 at the same time, and converts the rotation of the first stroke driving member 133 into the linear motion of the first stroke plate 136, and when the first stroke driving member 133 rotates forward and backward, the first stroke plate 136 reciprocates in the first direction. The first stroke plate 136 is slidably connected to the first slide rail 135 on the main bottom plate 132, and the first slide rail 135 is fixed on the main bottom plate 132 and extends along the first direction, so that the first stroke driving member 133 drives the first stroke plate 136 to reciprocate on the first slide rail 135 along the first direction through the first ball screw 134. In addition, the first stroke plate 136 is provided with a first through hole 1361 through which the polishing head 151 passes to contact the glass panel 20, the first through hole 1361 corresponds to the total bottom plate through hole 1321 in a third direction so that the polishing head 151 can pass through the total bottom plate through hole 1321 and the first through hole 1361 simultaneously, and at the same time, the polishing head 151 is connected to the first stroke plate 136 to follow the reciprocating movement of the first stroke plate 136 along the first direction, and the polishing head 151 and the first stroke plate 136 may be connected by a rotating shaft type connection or a spring connection or a ball joint structure, such as a spring connecting the polishing head 151 to a hole wall of the first through hole 1361. Preferably, the polishing head 151 and the first stroke plate 136 are connected by a ball joint structure.
Referring to fig. 7-8, the second stroke assembly 14 is disposed on the first stroke plate 136 and follows the first stroke plate 136, and the second stroke assembly 14 drives the polishing head 151 to reciprocate in the second direction. The second stroke assembly 14 includes a second stroke driving member 141, a second ball screw 142, a second slide rail 143, and a second stroke plate 144. The second stroke driver 141 is disposed at an end of the first stroke plate 136 in a length direction, and an output shaft thereof is connected to the second ball screw 142. The second ball screw 142 has a function of converting a rotational motion into a linear motion; the second ball screw 142 connects the output shaft of the second stroke driver 141 and the second stroke plate 144, and converts the rotation of the second stroke driver 141 into the linear motion of the second stroke plate 144, and when the second stroke driver 141 rotates forward and backward, the second stroke plate 144 reciprocates in the second direction.
The second stroke plate 144 is slidably connected to the second slide rail 143, and the second slide rail 143 is disposed on the first stroke plate 136 and extends along the second direction, so that the second stroke driving member 141 drives the second stroke plate 144 to reciprocate along the second direction on the second slide rail 143 via the second ball screw 142. In addition, the second stroke plate 144 is provided with a second through hole 1441 through which the polishing head 151 passes to contact the glass panel 20, when the first stroke plate 136 and the second stroke plate 144 do not move relatively, the second through hole 1441 corresponds to the first through hole 1361 and the total bottom plate through hole 1321 in a one-to-one correspondence in the third direction, and the polishing head 151 is connected to the second stroke plate 144 to reciprocate along the second direction along with the second stroke plate 144. The polishing head 151 and the second stroke plate 144 may be connected by a pivot connection or by a spring connection or by a ball joint structure. Preferably, the polishing head 151 is connected to the second stroke plate 144 by a spring.
Referring to fig. 9, the polishing heads 151 are divided into a first polishing group 153 and a second polishing group 154, which are disposed in parallel, and the number of the polishing heads 151 of the first polishing group 153 is equal to that of the polishing heads 151 of the second polishing group 154. Preferably, the number of the polishing heads 151 of the first polishing group 153 and the second polishing group 154 according to the present invention is preferably 15.
Referring to fig. 5-10, in the polishing apparatus 10, in the polishing operation state, the plurality of polishing heads 151 pass through the total bottom plate through hole 1321 of the total bottom plate 132, the first through hole 1361 of the first stroke plate 136, and the second through hole 1441 of the second stroke plate 144 to contact the glass panel 20, the plurality of polishing heads 151 are movably connected to the first stroke plate 136 and the second stroke plate 144 through a rotating shaft connection, a spring connection, or a ball joint structure connection, and a swing point 155 is formed at the movable connection position, and the first stroke plate 136 and the second stroke plate 144 perform a relative motion to drive the plurality of polishing heads 151 to swing around the swing point 155, respectively, so as to achieve multi-angle polishing of the arc panel 20 by the polishing heads 151. It is understood that the polishing head 151 can swing around the swinging point 155 by reciprocating the first stroke plate 136 in the first direction to swing the polishing head 151, or by reciprocating the second stroke plate 144 in the second direction to swing the polishing head 151, or by reciprocating the first stroke plate 136 in the first direction to swing the polishing head 151, while reciprocating the second stroke plate 144 in the second direction to swing the polishing head 151.
Referring to fig. 11, specifically, the polishing head 151 includes a pressing drive 1511, a rotary drive 1512 and a sponge polishing pad 1513, the pressing drive 1511 presses the sponge polishing pad 1513 down to contact the glass panel 20, and the rotary drive 1512 indirectly drives the sponge polishing pad 1513 to rotate through the gear set to polish the glass panel 20.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A polishing apparatus for performing polishing work on a main panel and an edge of an arc-shaped panel, characterized in that: the polishing device comprises a first stroke assembly, a second stroke assembly and a polishing assembly, wherein the first stroke assembly comprises a first stroke plate, the second stroke assembly comprises a second stroke plate, the polishing assembly comprises a plurality of polishing heads, the plurality of polishing heads penetrate through the first stroke plate and the second stroke plate, the plurality of polishing heads are movably connected to the first stroke plate or the second stroke plate and form swing points at the movable connection positions, the first stroke plate and the second stroke plate move relatively to drive the plurality of polishing heads to swing around the swing points respectively, and multi-angle polishing of the polishing heads to the arc-shaped panel is achieved.
2. A polishing apparatus according to claim 1, characterized in that: the polishing head is in rotary connection with the first stroke plate or the second stroke plate or is in connection with the first stroke plate or the second stroke plate through a spring or is in connection with the second stroke plate through a ball joint structure.
3. A polishing apparatus according to claim 1, characterized in that: the polishing head is connected with the first stroke plate through a ball joint structure, and the polishing head is connected with the second stroke plate through a spring.
4. A polishing apparatus according to claim 1, characterized in that: the first stroke plate is provided with a plurality of first through holes for the polishing heads to pass through, the second stroke plate is provided with second through holes for the polishing heads to pass through, and when the first stroke plate and the second stroke plate do not move relatively, the first through holes and the second through holes are in one-to-one correspondence in the height direction.
5. A polishing apparatus according to claim 1, characterized in that: the first stroke assembly further comprises a first stroke driving piece and a first ball screw, the first ball screw is connected with the first stroke driving piece and a first stroke plate, and the first stroke driving piece drives the first stroke plate to reciprocate along a first direction through the first ball screw.
6. The polishing apparatus according to claim 5, wherein: the second stroke assembly further comprises a second stroke driving piece and a second ball screw, the second ball screw is connected with the second stroke driving piece and a second stroke plate, the second stroke driving piece drives the second stroke plate to reciprocate along a second direction through the second ball screw, the first direction and the second direction are arranged in an included angle, and the included angle range is 30-150 degrees.
7. A polishing apparatus according to claim 6, characterized in that: the first direction of movement of the first stroke plate is perpendicular to the second direction of movement of the second stroke plate.
8. A polishing apparatus according to claim 6, characterized in that: the first stroke assembly further comprises a total bottom plate and a first slide rail, the second stroke assembly further comprises a second slide rail, the first slide rail is arranged on the total bottom plate and extends in the first direction, the first stroke driving piece drives the first stroke plate to move along the first slide rail, the second slide rail is arranged on one side, different from the total bottom plate, of the first stroke plate and extends in the second direction, and the second stroke driving piece drives the second stroke plate to slide along the second slide rail.
9. The polishing apparatus according to any one of claims 1 to 8, wherein: the polishing equipment further comprises a conveying assembly, wherein the conveying assembly is arranged on one side, far away from the second stroke assembly, of the first stroke assembly and used for conveying the arc-shaped panel to the lower portion of the polishing assembly, the conveying assembly comprises a conveying belt and an object stage used for placing the arc-shaped panel, and the object stage is arranged on the conveying belt at equal intervals.
10. A polishing apparatus according to claim 9, wherein: the conveying assembly further comprises a clamping driving part and a clamping part, the clamping driving part and the clamping part are respectively arranged on two opposite sides of the conveying direction of the conveying belt, the clamping driving part and the clamping part are arranged in a one-to-one correspondence mode, and when the object table is conveyed between the clamping driving part and the clamping part, the clamping driving part pushes the object table to the clamping part so as to clamp the object table between the clamping driving part and the clamping part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710765686.7A CN107584399B (en) | 2017-08-30 | 2017-08-30 | Polishing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710765686.7A CN107584399B (en) | 2017-08-30 | 2017-08-30 | Polishing equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107584399A CN107584399A (en) | 2018-01-16 |
| CN107584399B true CN107584399B (en) | 2020-09-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710765686.7A Active CN107584399B (en) | 2017-08-30 | 2017-08-30 | Polishing equipment |
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| CN (1) | CN107584399B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015144274A1 (en) * | 2014-03-25 | 2015-10-01 | Kuendig Ag | Device and method for the planet-like orbiting of rotating brushing, grinding, and polishing tools |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101774144B (en) * | 2010-02-24 | 2011-11-30 | 华中科技大学 | Automatic burnishing and polishing machine for stone sidelines |
| CN102672576B (en) * | 2011-12-16 | 2015-07-15 | 河南科技大学 | Method for grinding spherical surface of workpiece |
| CN103909456B (en) * | 2014-03-30 | 2016-02-10 | 陈江 | Numerical control gem grinding and polishing all-in-one |
| CN103978414B (en) * | 2014-06-03 | 2016-12-07 | 宝鸡银康机械设备有限公司 | The automatic kibbling mill of arc plate |
| CN104842241B (en) * | 2015-05-08 | 2017-06-13 | 浙江工业大学 | Polishing and derusting machine tool for raceway of amphibious tank turret seat ring |
| CN105598760B (en) * | 2016-03-08 | 2017-11-17 | 佛山慧谷科技股份有限公司 | Two-dimensional wiggle polishing machine |
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2017
- 2017-08-30 CN CN201710765686.7A patent/CN107584399B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015144274A1 (en) * | 2014-03-25 | 2015-10-01 | Kuendig Ag | Device and method for the planet-like orbiting of rotating brushing, grinding, and polishing tools |
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Effective date of registration: 20210629 Address after: 518106 building 21, 22, 23, 25, 26, xialang Industrial Zone, heshuikou community, Matian street, Guangming District, Shenzhen City, Guangdong Province Patentee after: KAYMAO TECHNOLOGY (SHENZHEN) Ltd. Patentee after: Kaimao Technology (Fujian) Co.,Ltd. Address before: 518000 building 22, 23, 25 and 26, xialang Industrial Zone, heshuikou community, Gongming street, Guangming New District, Shenzhen City, Guangdong Province Patentee before: KAYMAO TECHNOLOGY (SHENZHEN) Ltd. |
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