CN111894953A - Flexible wire attaching PSA device - Google Patents
Flexible wire attaching PSA device Download PDFInfo
- Publication number
- CN111894953A CN111894953A CN202011045574.2A CN202011045574A CN111894953A CN 111894953 A CN111894953 A CN 111894953A CN 202011045574 A CN202011045574 A CN 202011045574A CN 111894953 A CN111894953 A CN 111894953A
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- suction nozzle
- attached
- product
- positioning device
- positioning
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- 239000000463 material Substances 0.000 claims abstract description 261
- 230000007246 mechanism Effects 0.000 claims abstract description 62
- 230000009471 action Effects 0.000 claims description 8
- 239000013307 optical fiber Substances 0.000 claims description 8
- 230000003139 buffering effect Effects 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 238000010521 absorption reaction Methods 0.000 claims description 2
- 230000000007 visual effect Effects 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000004820 Pressure-sensitive adhesive Substances 0.000 description 43
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000007731 hot pressing Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B11/00—Connecting constructional elements or machine parts by sticking or pressing them together, e.g. cold pressure welding
- F16B11/006—Connecting constructional elements or machine parts by sticking or pressing them together, e.g. cold pressure welding by gluing
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manipulator (AREA)
Abstract
The invention provides a flexible line attaching PSA device which comprises a product positioning device, a material stripping mechanism, a material positioning device and a pressure maintaining mechanism, wherein the product positioning device is used for positioning a product shell; the stripping mechanism is used for stripping the material from the material belt; the material positioning device is used for positioning the material and attaching the positioned material to the product shell in the product positioning device; and the pressure maintaining mechanism is used for maintaining the pressure of the attached materials and the product shell. The invention can solve the problems of high attaching cost, low attaching precision and the like when the existing manual attaching and visual guide attaching are adopted to attach the PSA with larger product size in the attaching production process of the shell and the PSA of a micro-acoustic product.
Description
Technical Field
The invention relates to the technical field of electroacoustic, in particular to a flexible wire attaching PSA device.
Background
In the process of attaching and producing the PSA (pressure sensitive adhesive) of a micro-electro-acoustic product, the requirement on the attaching precision is very high, the adhesive performance, the appearance and the state of the PSA are complex, and the problem that how to stably adhere the PSA and a shell and ensure the position degree is always required to be solved in the field.
Currently, PSA attachment primarily involves manual attachment or attachment using visual guidance. With the continuous development of society, the cost of manual attachment is higher and higher, and because the proficiency of each person is inconsistent, the attachment precision is difficult to ensure, so that the adhesive edge of a product overflows the product; if the traditional visual guide attachment is adopted, because the overall dimension of the PSA is larger, the requirement of single-camera visual field shooting cannot be met, double-camera shooting is needed, and the cost is higher.
Both of the above two attaching methods have problems of high attaching cost and low attaching precision, and in order to solve the above problems, the present invention is urgently needed to provide a flexible wire attaching PSA apparatus.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide a PSA apparatus for attaching a flexible wire, so as to solve the problems of high attaching cost and low attaching precision when attaching a PSA with a large product size by using the existing manual attaching and visual guide attaching processes in the production process of attaching the PSA and the housing of a micro-acoustic product.
The PSA device for attaching the flexible wire comprises a product positioning device, a material stripping mechanism, a material positioning device and a pressure maintaining mechanism, wherein,
the product positioning device is used for positioning the product shell;
the stripping mechanism is used for stripping the material from the material belt;
the material positioning device is used for positioning the material and attaching the positioned material to the product shell in the product positioning device;
and the pressure maintaining mechanism is used for maintaining the pressure of the attached materials and the product shell.
In addition, the preferable proposal is that the device also comprises a material taking suction nozzle mechanism, wherein,
the material taking suction nozzle mechanism is used for adsorbing stripped materials and carrying the materials to the material positioning device.
In addition, the preferable proposal is that the material taking suction nozzle mechanism comprises a material taking suction nozzle mounting plate, a material taking suction nozzle rod penetrating the material taking suction nozzle mounting plate, a material taking suction nozzle arranged at the top end of the material taking suction nozzle rod, and a material taking air joint connected with the material taking suction nozzle rod,
get and be provided with on the material suction nozzle and get the material suction hole, it passes through to get the material suction nozzle get the material suction hole absorption the material.
In addition, the preferable proposal is that a material taking spring is sleeved on the material taking suction nozzle rod and is arranged between the material taking suction nozzle mounting plate and the material taking suction nozzle, wherein,
get the material spring for the buffering get the material suction nozzle right the effort of material.
In addition, it is preferable that the product positioning device includes a mounting plate, a positioning block and a material receiving plate, wherein,
the positioning block is used for positioning the product shell;
the material receiving plate is used for placing materials attached to the product shell.
In addition, the preferable scheme is that the stripping mechanism comprises a material receiving platform, a stripper arranged on the material receiving platform and an optical fiber detector, wherein,
the stripper peels the material to a material receiving area of the receiving platform;
the optical fiber detector is used for detecting whether the material exists in the material receiving area or not.
In addition, it is preferable that the material positioning device includes a three-axis manipulator and a material suction nozzle attaching mechanism provided on the three-axis manipulator, wherein,
and the attached material suction nozzle mechanism is used for mechanically positioning the adsorbed material under the action of the three-axis manipulator.
In addition, the preferable scheme is that the attached material suction nozzle mechanism comprises an attached material suction nozzle mounting plate, an attached material suction nozzle rod penetrating through the attached material suction nozzle mounting plate, an attached material suction nozzle arranged at the top end of the attached material suction nozzle rod, a quick-change connector connected with the attached material suction nozzle rod, and an attached material gas connector connected with the quick-change connector, wherein,
attached material suction nozzle is last to be provided with attached material suction hole, attached material suction nozzle passes through attached material suction hole adsorbs the material.
In addition, the preferable proposal is that an attaching material spring is sleeved on the attaching material suction nozzle rod and is arranged between the attaching material suction nozzle mounting plate and the attaching material suction nozzle, wherein,
and the attached material spring is used for buffering the acting force of the attached material suction nozzle on the material.
In addition, it is preferable that the pressure holding mechanism includes a fixed plate, a pressure holding device provided on the fixed plate, and an electric cylinder connected to the pressure holding device,
the electric cylinder is fixed on the fixing plate through the electric cylinder mounting plate, and the pressure maintaining device maintains pressure of the attached materials and the product shell under the action of the electric cylinder.
According to the technical scheme, the flexible line attaching PSA device provided by the invention has the advantages that materials are peeled from the material belt through the peeling mechanism, the peeled materials are mechanically positioned through the material positioning device, and the positioned materials are attached to the product shell of the product positioning device; thereby solve in the attached production process of PSA and shell of little electroacoustic product, adopt current artifical attached and visual guide attached, carry out attached problem that has attached with high costs, attached precision low to the great PSA of product size.
To the accomplishment of the foregoing and related ends, one or more aspects of the invention comprise the features hereinafter fully described. The following description and the annexed drawings set forth in detail certain illustrative aspects of the invention. These aspects are indicative, however, of but a few of the various ways in which the principles of the invention may be employed. Further, the present invention is intended to include all such aspects and their equivalents.
Drawings
Other objects and results of the present invention will become more apparent and more readily appreciated as the same becomes better understood by reference to the following description and appended claims, taken in conjunction with the accompanying drawings. In the drawings:
FIG. 1 is a schematic structural view of a flexible wire-attached PSA device according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a material-fetching suction nozzle mechanism according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a product positioning device according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a material-attaching suction nozzle mechanism according to an embodiment of the present invention;
fig. 5 is a schematic structural view of a pressure maintaining mechanism according to an embodiment of the present invention.
Wherein the reference numerals include: 1. product positioner, 2, shell the material mechanism, 3, pressurize mechanism, 4, get material suction nozzle mechanism, 5, attached material suction nozzle mechanism, 6, three-axis manipulator, 7, hot pressing detector, 8, flowing water area, 9, clamping jaw, 11, the mounting panel, 12, the locating piece, 13, connect the flitch, 31, pressurizer, 32, electric cylinder mounting panel, 33, the electric cylinder, 34, the fixed plate, 41, get the material spring, 42, get the material suction nozzle, 43, get the material suction nozzle pole, 44, get the material suction nozzle mounting panel, 45, get material gas head, 51, attached material spring, 52, attached material suction nozzle, 53, attached material suction nozzle pole, 54, attached material suction nozzle mounting panel, 55, quick change coupler, 56, attached material gas head, 57, prevent changeing the piece.
The same reference numbers in all figures indicate similar or corresponding features or functions.
Detailed Description
Aiming at solving the problems that the existing manual attachment and visual guide attachment are adopted in the attaching production process of the PSA and the shell of the micro-electroacoustic product, and the attaching cost is high, the attaching precision is low and the like when the PSA with a larger product size is attached, the invention provides the flexible wire attaching PSA device.
Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
In order to illustrate the structure of the flexible thread attaching PSA apparatus provided by the present invention, fig. 1 to 5 exemplarily indicate the structure of the flexible thread attaching PSA apparatus from different angles, respectively. In particular, fig. 1 shows a flexible wire-attached PSA apparatus according to an embodiment of the present invention; FIG. 2 illustrates a material pick-up nozzle mechanism according to an embodiment of the present invention; FIG. 3 illustrates a product positioning device according to an embodiment of the present invention; FIG. 4 illustrates a stick material nozzle mechanism according to an embodiment of the invention; fig. 5 shows a pressure holding mechanism according to an embodiment of the present invention.
As shown in fig. 1 to 5, the PSA apparatus for attaching a flexible line provided by the present invention includes a product positioning device 1, a material peeling mechanism 2, a material positioning device, and a pressure maintaining mechanism 3, wherein the product positioning device 1 is used for positioning a product housing; the stripping mechanism 2 is used for stripping the material from the material belt; the material positioning device is used for positioning the material and attaching the positioned material to a product shell in the product positioning device; the pressure maintaining mechanism 3 is used for maintaining the pressure of the attached materials and the product shell.
By adopting the device, the PSA is peeled from the material belt through the stripping mechanism 2, and then the PSA is subjected to adsorption mechanical fine positioning through the material positioning mechanism and is automatically attached to the shell, wherein in the positioning process, the PSA is adsorbed through the suction nozzle to position the long edge and the short edge of the PSA, so that the PSA is accurately attached to the shell of a product.
In the embodiment of the present invention, the product positioning device 1 includes a mounting plate 11, a positioning block 12 and a receiving plate 13, which are disposed on the mounting plate 11, wherein the positioning block 12 is used for positioning the product housing; the material receiving plate 13 is used for placing materials attached to the product shell.
In the embodiment of the invention, the stripping mechanism 2 comprises a material receiving platform, a stripper arranged on the material receiving platform and an optical fiber detector, wherein the stripper strips the material to a material receiving area of the material receiving platform; the material receiving area is provided with a non-stick layer which can prevent the material (PSA) bottom glue from sticking the material receiving platform. And the optical fiber detector is used for detecting whether the material exists in the material receiving area.
In the embodiment of the present invention, the flexible wire attaching PSA apparatus further includes a material taking suction nozzle mechanism 4, wherein the material taking suction nozzle mechanism 4 is configured to adsorb the peeled material and transport the material to the material positioning device. Get material suction nozzle mechanism 4 including getting material suction nozzle mounting panel 44, run through get on the material suction nozzle mounting panel 44 material suction nozzle rod 43, set up get the material suction nozzle 42 on getting the top of material suction nozzle rod 43, with get the material air connector 45 of getting that material suction nozzle rod 43 is connected, wherein, be provided with on getting the material suction nozzle 42 and get the material suction hole, get material suction nozzle 42 and adsorb the material through getting the material suction hole. The material taking spring 41 is sleeved on the material taking suction nozzle rod 43, the material taking spring 41 is arranged between the material taking suction nozzle mounting plate 44 and the material taking suction nozzle 42, and the material taking spring 41 is used for buffering the acting force of the material taking suction nozzle 42 on the material.
In the embodiment of the invention, the material positioning device comprises a three-axis manipulator 6 and an attached material suction nozzle mechanism 5 arranged on the three-axis manipulator 6, wherein the attached material suction nozzle mechanism 5 is used for mechanically positioning the adsorbed material under the action of the three-axis manipulator 6.
Wherein, attached material suction nozzle mechanism 5 includes attached material suction nozzle mounting panel 54, run through attached material suction nozzle pole 53 on the attached material suction nozzle mounting panel 54, the attached material suction nozzle 52 of setting on the top of attached material suction nozzle pole 53, the quick change coupler 55 that is connected with attached material suction nozzle pole 53, the attached material gas coupling 56 that is connected with quick change coupler 55, wherein, be provided with attached material suction hole on attached material suction nozzle 52, attached material suction nozzle 52 adsorbs the material through attached material suction hole. The cover is equipped with attached material spring 51 on attached material suction nozzle pole 53, attached material spring 51 set up attached material suction nozzle mounting panel 54 with between the attached material suction nozzle 52, wherein, attached material spring 51 is used for the effort of the attached material suction nozzle 52 of buffering to the material.
In addition, the attached material suction nozzle mechanism 5 further includes a rotation prevention block 57, and the rotation prevention block 57 is used for preventing the quick change coupler 55 from rotating when the attached material suction nozzle mechanism 5 adsorbs materials.
Wherein, the three-axis manipulator 6 drives PSA motion through driving attached material suction nozzle mechanism 5, fixes a position the long limit of PSA earlier, then fixes a position the short limit of PSA again, then adsorbs the PSA that fixes a position to the product shell, pastes together with the product shell. The three-axis manipulator 6 drives the attached material suction nozzle mechanism 5 to perform positioning adjustment in different directions (three directions of an X axis, a Y axis and a Z axis) so as to meet the requirement of product positioning.
After the attachment is completed, the attached product is grabbed by the clamping jaw 9 and put into the running water belt 8, and the product moves to the next procedure under the action of the running water belt 8, namely: and (5) pressure maintaining.
In the embodiment of the present invention, the pressure maintaining mechanism 3 includes a fixing plate 34, a pressure maintaining device 31 disposed on the fixing plate 34, and an electric cylinder 33 connected to the pressure maintaining device 31, wherein the electric cylinder 33 is fixed on the fixing plate 34 through an L-shaped electric cylinder mounting plate 32, and the pressure maintaining device 31 maintains pressure of the materials and the product casing adhered together under the action of the electric cylinder 33. Wherein, pressurize mechanism 3 still includes hot pressing detector 7, and hot pressing detector 7 is arranged in detecting the temperature of the head of protecting in the pressurizer 31, controls the temperature of the head of protecting to accurate control pressurize temperature.
The specific structure of the flexible wire attaching PSA device of the invention comprises the following working processes:
the first step is as follows: the stripper strips the material (PSA) to a material receiving area of the receiving platform, and stops advancing after the optical fiber detector detects that the material is in place;
the second step is that: the material taking suction nozzle mechanism 4 sucks the material from the material receiving area and then places the material on the material receiving platform, and after the optical fiber detector on the material receiving platform detects that the material is sucked away, the stripper continues to repeat the material stripping action;
the third step: the three-axis manipulator 6 drives the attached material suction nozzle mechanism 5 to suck up the material on the material receiving platform, mechanically position the material and attach the positioned material to a product shell of the product positioning device 1;
the fourth step: after the attachment is completed, the clamping jaw 9 grabs the attached finished product and releases the water flowing belt 8, the product flows in the water flowing belt 8, the pressure maintaining process is performed on the product through the pressure maintaining mechanism, and the PSA is completed in the process from stripping to attaching.
According to the flexible line attaching PSA device, materials are peeled from the material belt through the peeling mechanism, the peeled materials are mechanically positioned through the material positioning device, and the positioned materials are attached to the product shell of the product positioning device; thereby solve in the attached production process of PSA and shell of little electroacoustic product, adopt current artifical attached and visual guide attached, carry out attached problem that has attached with high costs, attached precision low to the great PSA of product size.
The proposed flexible thread attaching PSA apparatus according to the present invention is described above by way of example with reference to the accompanying drawings. However, it will be appreciated by those skilled in the art that various modifications may be made to the flexible wire attachment PSA apparatus set forth above without departing from the scope of the present invention. Therefore, the scope of the present invention should be determined by the contents of the appended claims.
Claims (10)
1. A PSA device attached by flexible wires is characterized by comprising a product positioning device, a stripping mechanism, a material positioning device and a pressure maintaining mechanism, wherein,
the product positioning device is used for positioning the product shell;
the stripping mechanism is used for stripping the material from the material belt;
the material positioning device is used for positioning the material and attaching the positioned material to the product shell in the product positioning device;
and the pressure maintaining mechanism is used for maintaining the pressure of the attached materials and the product shell.
2. The flexible wire applied PSA apparatus of claim 1,
also comprises a material taking suction nozzle mechanism, wherein,
the material taking suction nozzle mechanism is used for adsorbing stripped materials and carrying the materials to the material positioning device.
3. The flexible wire applied PSA apparatus of claim 2,
the material taking suction nozzle mechanism comprises a material taking suction nozzle mounting plate, a material taking suction nozzle rod penetrating through the material taking suction nozzle mounting plate, a material taking suction nozzle arranged at the top end of the material taking suction nozzle rod, and a material taking air joint connected with the material taking suction nozzle rod,
get and be provided with on the material suction nozzle and get the material suction hole, it passes through to get the material suction nozzle get the material suction hole absorption the material.
4. The flexible wire applied PSA apparatus of claim 3,
the material taking suction nozzle rod is sleeved with a material taking spring which is arranged between the material taking suction nozzle mounting plate and the material taking suction nozzle, wherein,
get the material spring for the buffering get the material suction nozzle right the effort of material.
5. The flexible wire applied PSA apparatus of claim 1,
the product positioning device comprises a mounting plate, a positioning block and a material receiving plate which are arranged on the mounting plate, wherein,
the positioning block is used for positioning the product shell;
the material receiving plate is used for placing materials attached to the product shell.
6. The flexible wire applied PSA apparatus of claim 1,
the stripping mechanism comprises a material receiving platform, a stripper and an optical fiber detector which are arranged on the material receiving platform, wherein,
the stripper peels the material to a material receiving area of the receiving platform;
the optical fiber detector is used for detecting whether the material exists in the material receiving area or not.
7. The flexible wire applied PSA apparatus of claim 1,
the material positioning device comprises a three-axis manipulator and a material suction nozzle attaching mechanism arranged on the three-axis manipulator, wherein,
and the attached material suction nozzle mechanism is used for mechanically positioning the adsorbed material under the action of the three-axis manipulator.
8. The flexible wire applied PSA apparatus of claim 7,
the attached material suction nozzle mechanism comprises an attached material suction nozzle mounting plate, an attached material suction nozzle rod penetrating through the attached material suction nozzle mounting plate, an attached material suction nozzle arranged at the top end of the attached material suction nozzle rod, a quick-change connector connected with the attached material suction nozzle rod, and an attached material gas connector connected with the quick-change connector, wherein,
attached material suction nozzle is last to be provided with attached material suction hole, attached material suction nozzle passes through attached material suction hole adsorbs the material.
9. The flexible wire applied PSA apparatus of claim 8,
an attached material spring is sleeved on the attached material suction nozzle rod and arranged between the attached material suction nozzle mounting plate and the attached material suction nozzle, wherein,
and the attached material spring is used for buffering the acting force of the attached material suction nozzle on the material.
10. The flexible wire applied PSA apparatus of claim 1,
the pressure maintaining mechanism comprises a fixing plate, a pressure maintaining device arranged on the fixing plate and an electric cylinder connected with the pressure maintaining device, wherein,
the electric cylinder is fixed on the fixing plate through the electric cylinder mounting plate, and the pressure maintaining device maintains pressure of the attached materials and the product shell under the action of the electric cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011045574.2A CN111894953B (en) | 2020-09-29 | 2020-09-29 | Flexible wire attaching PSA device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011045574.2A CN111894953B (en) | 2020-09-29 | 2020-09-29 | Flexible wire attaching PSA device |
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| Publication Number | Publication Date |
|---|---|
| CN111894953A true CN111894953A (en) | 2020-11-06 |
| CN111894953B CN111894953B (en) | 2021-02-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011045574.2A Active CN111894953B (en) | 2020-09-29 | 2020-09-29 | Flexible wire attaching PSA device |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050063142A1 (en) * | 2003-09-19 | 2005-03-24 | Fei Yao-Chi | Orientation system for thin printed circuit board and method for orientating the board |
| CN103945649A (en) * | 2014-04-25 | 2014-07-23 | 机科发展科技股份有限公司 | Film automatic pasting device used for flexible printed circuit board |
| CN109511258A (en) * | 2018-12-25 | 2019-03-22 | 东莞市沃德精密机械有限公司 | Automatic mounting device |
| CN111677728A (en) * | 2020-04-26 | 2020-09-18 | 深圳市邦正精密机械有限公司 | Laminating mechanism and method for foldable auxiliary materials |
-
2020
- 2020-09-29 CN CN202011045574.2A patent/CN111894953B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050063142A1 (en) * | 2003-09-19 | 2005-03-24 | Fei Yao-Chi | Orientation system for thin printed circuit board and method for orientating the board |
| CN103945649A (en) * | 2014-04-25 | 2014-07-23 | 机科发展科技股份有限公司 | Film automatic pasting device used for flexible printed circuit board |
| CN109511258A (en) * | 2018-12-25 | 2019-03-22 | 东莞市沃德精密机械有限公司 | Automatic mounting device |
| CN111677728A (en) * | 2020-04-26 | 2020-09-18 | 深圳市邦正精密机械有限公司 | Laminating mechanism and method for foldable auxiliary materials |
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| CN111894953B (en) | 2021-02-26 |
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Effective date of registration: 20221116 Address after: 266104 No. 500, Songling Road, Laoshan District, Qingdao, Shandong Patentee after: GOERTEK TECHNOLOGY Co.,Ltd. Address before: 261000 north of Yuqing street, east of Dongming Road, high tech Zone, Weicheng District, Weifang City, Shandong Province (Room 502, Geer electronic office building) Patentee before: GoerTek Optical Technology Co.,Ltd. |
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