CN105109048B - Resin pool and 3D printer for photocuring 3D printer - Google Patents
Resin pool and 3D printer for photocuring 3D printer Download PDFInfo
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- CN105109048B CN105109048B CN201510616273.3A CN201510616273A CN105109048B CN 105109048 B CN105109048 B CN 105109048B CN 201510616273 A CN201510616273 A CN 201510616273A CN 105109048 B CN105109048 B CN 105109048B
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Abstract
The application provides a kind of resin pool for photocuring 3D printer, including：Offer the bottom wall in the first hole and the second hole；For the perisporium being placed on the bottom wall, the perisporium and bottom wall formation first chamber；Supporting plate for being abreast arranged at the first chamber with the bottom wall, the surrounding of the supporting plate and perisporium connection and the second chamber formed between the supporting plate and the bottom wall in first chamber, first hole is connected with second hole with the second chamber.The application, which provides resin pool, can make cooling water be adequately filled in whole second chamber, and the heat assembled by cyclic absorption resin pool (particularly resin pool bottom wall), its is simple in construction, manufacturing cost is low, good heat dissipation effect, and in the case where not changing the external structure of existing resin pool, it becomes possible to reach the purpose of cooling, it has good versatility.
Description
Technical field
The present invention relates to photocuring 3D printer field, more particularly to a kind of resin pool and use with cooling device should
The 3D printer of resin pool.
Background technology
Existing photocuring 3D printer has the resin pool for being used for accommodating liquid photosensitive resin.In order to avoid curing molding
Object and the adhesion of resin pool bottom, in SLA types or DLP type photocuring 3D printers, can photosensitive resin pond bottom
The inner surface of wall, which is covered, can pass through the pellicle of oxygen.In LCD type photocuring 3D printer, LCD display unit is arranged at
On the bottom wall in photosensitive resin pond, then can be covered in the upper surface of LCD display unit can pass through the pellicle of oxygen.
In order to improve laser curing velocity, reduce the hardening time of every layer of photosensitive resin, it usually needs selection intensity is higher
Light source.Photosensitive resin can release heat when being solidified by the irradiation of light source, and institute's liberated heat is gathered in photosensitive tree
Fat bottom of pond portion.Therefore, from resin pool bottom to resin pool at the top of temperature distribution gradient.In addition, not absorbed by photosensitive resin
A part of luminous energy can also be converted into heat, under collective effect of its heat produced by solidifying with photosensitive resin, resin pool
The temperature of bottom may be more than 120 DEG C.This will cause to be covered in semi-transparent on photosensitive resin bottom of pond portion or LCD display unit
Film occur Folding Deformation, and then cause photocuring precise decreasing, solidification after resin and pellicle (LCD type 3D printer) or
Viscous glutinous, final resin pool damage occurs for resin pool bottom (SLA or DLP types 3D printer).
Therefore, between currently used photocuring 3D printer is when every layer of photosensitive resin solidification is completed all in the presence of printing
Every to cause heat to be distributed, it is to avoid above mentioned problem, causing the production efficiency of 3D printer is greatly influenceed.
In order to solve this problem, it would be highly desirable to provide a kind of resin pool with cooling system.
The content of the invention
In view of problems of the prior art, the present invention provides a kind of resin pool for photocuring 3D printer, bag
Include：Offer the bottom wall in the first hole and the second hole；For the perisporium being placed on the bottom wall, the perisporium and the bottom wall shape
Into first chamber；Supporting plate for being abreast arranged at the first chamber with the bottom wall, the surrounding of the supporting plate with
The perisporium connection and the second chamber formed between the supporting plate and the bottom wall in first chamber, first hole
Connected with second hole with the second chamber.
In addition, present invention also offers another resin pool for photocuring 3D printer, including：Offer the first hole
With the bottom wall in the second hole；For the perisporium being placed on the bottom wall, the perisporium and bottom wall formation first chamber are described
First hole is connected with second hole with the first chamber；For being abreast arranged at the first chamber with the bottom wall
Interior LCD display unit, the surrounding of the LCD display unit is connected and the LCD display unit and the bottom with the perisporium
The second chamber being located in first chamber is formed between wall, first hole and second hole connect with the second chamber
It is logical.
Supporting plate is substituted using LCD display unit, you can the photocuring 3D printing that this resin pool is applied into LCD type is led
Domain.The second chamber that Cooling Water passes through can be formed between the lower surface and bottom wall of LCD display unit.Cooling water is from the first hole
Into, full of after second chamber from the second hole flow out, so as to take away the heat assembled in resin pool, reach the mesh cooled rapidly
's.
In certain embodiments of the present invention, the resin pool also includes being covered in the supporting plate or the LCD
Pellicle on display unit.
In certain embodiments of the present invention, the bottom wall is transparent, and the resin pool also includes：For being fixedly connected on
The heat sink of the lower surface of the bottom wall, lower surface the 3rd chamber of formation of the heat sink and the bottom wall, the heat sink
The 4th chamber with the portion that is formed within, and with the 3rd hole and the 4th hole with the 4th chamber；For setting
Light source on the heat sink and in the 3rd chamber.
When using LCD type photocuring 3D printer, it can be connected by heat sink with resin pool bottom wall, so that the two it
Between form the 3rd chamber, and light source is arranged in the 3rd chamber.In addition, the inside of itself of heat sink or under heat sink
Square the 4th chamber passed through into extra confession coolant.By second chamber and the 4th chamber, you can realize cooling water by
Second chamber enters the 4th chamber or enters second chamber by the 4th chamber, to reach bottom and the light directly for resin pool
The purpose of source heat-dissipating.So setting structure is more succinct, it is easy to accomplish, manufacturing cost is low.
In certain embodiments of the present invention, first hole and second hole are arranged at the maximum of the bottom plate directly
The two ends in footpath.
In order that obtaining cooling water can sufficiently be flowed into whole second chamber, the first hole and the second hole are opened in bottom wall
Relative distalmost end, cooling water enter the first hole, flow through after whole bottom wall, can be flowed out from the second hole.For example, bottom wall
It is square, then the first hole and the second hole are arranged on the cornerwise two ends of bottom wall.Bottom wall is rectangle, then the first hole and
Two holes are arranged on longer cornerwise two ends.Bottom wall is rounded, and the first hole and the second hole are arranged on the two ends of bottom wall diameter.Bottom
Wall is in irregular shape, and the first hole and the second hole are then arranged on the two ends of maximum gauge.
In certain embodiments of the present invention, the heat emission fan for being used to be arranged on the heat sink bottom.
During the photocuring 3D printing of LCD technology, the light source positioned at resin pool bottom can be opened for a long time, therefore meeting
Amount of heat is produced, if do not handled, the temperature rise of resin pool is will result in, so as to influence to be arranged at semi-transparent in resin pool
Film.Heat sink is installed below bottom wall, then light source is arranged on heat sink, and is equipped with heat emission fan, can be at utmost
The heat for producing light source distribute, with ensure pellicle not because the temperature of resin pool raise and crimp, fold, indirectly
Improve photocuring 3D printer quality.
In addition, present invention also offers a kind of photocuring 3D printer using above-mentioned resin pool.
A kind of photocuring 3D printer that the present invention is provided, including：
External frame；
It is arranged at the resin pool in the external frame；
For the liquid container with the first pipeline and second pipe being arranged in the external frame, first pipe
Road is connected with second hole, and the second pipe is connected with the 4th hole；
The 3rd pipeline for connecting first hole and the 3rd hole；
For the pump being arranged on first pipeline.
Present invention also offers a kind of structure is relatively simple, and the good photocuring 3D printer of radiating effect, it leads to
Cross setting liquid container and connect the first pipeline of liquid container with the second hole, second pipe and the 4th hole connect and connected
The 3rd pipeline in the first hole and the 3rd hole is connect, the circulation of cooling water is completed.In order that the cooling water flow obtained in the first pipeline is big
In the cooling water flow in second pipe, to enable cooling water to be full of second chamber and the 4th chamber as early as possible, in the first pipe
Pump is additionally provided with road.
In certain embodiments of the present invention, the 3D printer also includes being arranged at being located on first pipeline
Thermal component between the pump and the resin pool, to enable the cooling water recycled to reduce temperature as early as possible.Radiating
Part can use radiator or fin, and install heat emission fan additional above, to reach the purpose of fast cooling.
In photosensitive resin cure test, using following sample and experimental situation：
Sample ID：Methacrylate；Sample description：Transparency liquid
Temperature range：30.5 DEG C of constant temperature at room temperature；Measurement atmosphere：N2；Test crucible：Al2O3
Light intensity：0.5W/cm2；Irradiation time：0.5s；Irradiation delay：15s
In this class testing, ultraviolet lighting is mapped on sample, can produce curing exotherm effect, and repeatedly irradiation is until solidified
Entirely.Using testing twice in this test, first uncured primary sample is tested through repeatedly irradiation, then by after completion of cure
Sample re-starts second of test and removed as baseline left-hand thread, is disturbed with the signal for removing sample after solidification.Total solidification of sample
Heat release heat enthalpy value is 280.4J/g~337.7J/g.
The coolant used in embodiments of the present invention is water, and its specific heat capacity is 4.186J/ (g. DEG C), per 100g water temperatures
1 ° of absorbent heat of institute of degree rise is 418.6J, the heat discharged much larger than 1g resin solidifications.Cooling water is in outflow resin pool
Outside after a part of heat can be dispersed among air, reduction temperature that can be autonomous, in addition, cooling water is flowing through
During four chambers, being arranged at the fan of the 4th chamber lower portion can make it reduce temperature, and the radiating being arranged on the first pipeline
Part (radiator, fin) also has powerful heat sinking function so that the temperature of cooling water further declines.Cooling water is such
The heat absorption for heat and the light source part release that reciprocation cycle discharges when just can be by resin solidification is simultaneously dispersed into outside.
Using above-mentioned 3D printer so that during photocuring 3D printer, every layer of photosensitive resin can continuously solidify
(continuous printing, without interval), every layer of photosensitive resin hardening time only needs 2~5s, and it is compared to existing Stereolithography speed
Degree improves 20 times.Therefore, 3D printer provided by the present invention is not only with low cost, and greatly improves printing effect
Rate, can greatly lift user satisfaction.
Second chamber is formed between bottom wall and supporting plate provided by the present invention for the resin pool of photocuring 3D printer,
And the first hole of Cooling Water inflow and the second hole of Cooling Water outflow are opened up on bottom wall.Cooling water can be filled sufficiently
In whole second chamber, and the heat assembled by cyclic absorption resin pool (particularly resin pool bottom wall).This kind of resin
Pond it is simple in construction, manufacturing cost is low, good heat dissipation effect, and in the situation for the external structure for not changing existing resin pool
Under, it becomes possible to the purpose of cooling is reached, it has good versatility.
Brief description of the drawings
Fig. 1 is the resin pool cross-sectional view of the first embodiment of the invention；
Fig. 2 is the schematic diagram of the photocuring 3D printer using the resin pool shown in Fig. 1；
Fig. 3 is the photosensitive resin pond cross-sectional view of second of embodiment of the invention；
Fig. 4 is the schematic diagram of the photocuring 3D printer using the resin pool shown in Fig. 3；
Fig. 5 is the photosensitive resin pond cross-sectional view of the third embodiment of the invention；
Fig. 6 is the schematic diagram that the resin pool shown in Fig. 5 is connected with outside cooling device.
Embodiment
Embodiment 1
Reference picture 1, present embodiments provides a kind of resin pool 1 for photocuring 3D printer, it includes bottom wall 11, if
It is placed on bottom wall 11 and can be set with the perisporium 12 of the formation first chamber 15 of bottom wall 11, bottom wall 11 and perisporium 12 to be split type
Meter, can also be integrally formed.The first hole 17 and the second hole 18 are offered on bottom wall 11.First hole 17 and the second hole 18 are located at bottom wall
11 left and right sides.Supporting plate 13 is additionally provided with first chamber 15.The surrounding of supporting plate 13 is fixedly connected with perisporium 11, and
And second chamber 16 is formed between bottom wall 11.Second chamber 16 is located in the first chamber 15.Supporting plate 13 is single
Part, can also be integrally formed with perisporium 11.Pellicle 14 is covered in supporting plate 13.Pellicle 14 is preferably selected oxygen molecule selection
Property passes through film.When cooling water from the first hole 17 enters fashionable, it can be full of second chamber 16, then be flowed out from the second hole 18, with
Absorption is gathered in the heat of resin pool, particularly resin pool bottom wall 11.
Fig. 2 shows a kind of photocuring 3D printer using above-mentioned resin pool, and it is light-cured into based on DLP or SLA
Type technology.The 3D printer includes external frame 2, is arranged at the resin pool 1 in external frame 2, and be arranged at external frame 2
Liquid container 4 interior and below resin pool.The water inlet pipe 6 of liquid container 4 is connected with the first hole 17 of resin pool 1, is gone out
Water pipe 5 is connected with the second hole 18 of resin pool 1., can be with order that cooling water can be upwardly into the second chamber 16 of resin pool 1
Pump 3 is set on outlet pipe 5.
When photocuring 3D printer starts, pump 3 starts, and the cooling water in liquid container 4 is pumped into second chamber 16
In.Subsequent cooling water is full of second chamber 16, and some cooling water begins through outlet pipe 5 and is back to liquid container 4
It is interior.So repeatedly, you can absorb and be gathered in heat in resin pool 1, to prevent the pellicle 14 being arranged in resin pool 1 to be heated
Generation curling, fold, so as to improve the precision of photocuring 3D printer.Those skilled in the art are it should be understood that cooling
Liquid can use water, it would however also be possible to employ other conventional coolants.
Embodiment 2
Reference picture 3, present embodiments provides another resin pool 1 ' for photocuring 3D printer, its structure is with implementing
Resin pool 1 in example 1 is similar, and difference is that supporting plate 13 is replaced by LCD display unit 13 '.Therefore, this resin pool is special
Shi Yongyu not the 3D printer based on LCD photocuring 3D printer technologies.In addition, being additionally provided with heat sink in the bottom of bottom wall 11
19.Heat sink 19 encloses the 3rd chamber 20 with bottom wall 11.Light source 21 is arranged on heat sink 19 and in the 3rd chamber 20,
Its light beam launched directly can be irradiated on LCD display unit 13 ' by transparent bottom wall 11, and subsequent light is aobvious according to LCD
Show that image illumination that unit shows is located at the liquid photosensitive resin in first chamber 15, be allowed to be solidified into corresponding shape.In order to
The heat dissipation problem of light source 21 is preferably solved, heat emission fan 22 also has been fixedly installed in the bottom of heat sink 19.No matter is heat emission fan 22
Towards the blows cold air of heat sink 19, it is still able to that so that the air at heat sink 19 is discharged to bottom, radiating can be reached
Purpose.For the something in common of the resin pool in this resin pool and embodiment 1, here is omitted.
Fig. 4 shows a kind of photocuring 3D printer using this resin pool, and it is based on LCD Stereolithography technologies.
The 3D printer includes external frame 2, is arranged at the resin pool 1 ' in external frame 2, and be arranged in external frame 2 and
Liquid container 4 below resin pool.The water inlet pipe 6 of liquid container 4 is connected with the first hole 17 of resin pool 1, the He of outlet pipe 5
Second hole 18 of resin pool 1 ' is connected.In order that cooling water can be upwardly into the second chamber 16 of resin pool 1 ', it can go out
Pump 3 is set on water pipe 5.
When photocuring 3D printer starts, pump 3 starts, and the cooling water in liquid container 4 is pumped into second chamber 16
In.Subsequent cooling water is full of second chamber 16, and some begins through outlet pipe 5 and is back in liquid container 4.So
Repeatedly, you can absorb the heat being gathered in resin pool 1 ', occur to prevent from being arranged on the pellicle 14 in resin pool 1 ' and be heated
Curling, fold, so as to improve the precision of photocuring 3D printer.
Embodiment 3
Reference picture 5 and Fig. 6, present embodiments provide another resin pool 1 " for photocuring 3D printer, its is basic
The structure of the resin pool provided using embodiment 2, difference is that heat sink 19 has the 4th chamber in the portion that is formed within
Room 23, and with the 3rd hole 24 and the 4th hole 25 being connected with the 4th chamber 23.It should be understood that the 4th chamber 23 can be with
It is the self structure of heat sink 19 or is formed by setting other parts to be enclosed with heat sink 19.Heat sink 19 it is upper
Portion is provided with heat emission fan.
In use, first the hole 18 of water inlet pipe 6 and second of liquid container 4 can be connected, by the outlet pipe 5 of liquid container 4
It is connected with the 4th hole 25, then connects the first hole 17 and the 3rd hole 24 with connecting tube 7.Pump 3 is disposed with water inlet pipe 6 and is dissipated
Hot device 8.During work, pump 3 is opened, and it delivers to the cooling water pump in liquid container 4 in second chamber.Cooling water is via connecting tube
7 enter the 4th chamber, are then back to liquid container 4 from outlet pipe 5.In order to quickly be radiated to cooling water, so that its
The temperature of reduction resin pool can be more effectively used in, present embodiment is not only provided with radiator 8, also in radiator
Heat emission fan 9 is mounted with 8.
Various embodiments of the present invention are described in detail above.It will be understood by those skilled in the art that can be not inclined
In the case of from the scope of the invention (being limited by the accompanying claims), various modifications are carried out to embodiment, changes and becomes
Change.Explaining for right should be explained from overall and meet the widest range consistent with illustrating, however it is not limited to example or
Implementation example in detailed description.
Claims (8)
1. the resin pool for photocuring 3D printer, it is characterised in that including：
Offer the bottom wall in the first hole and the second hole；
For the perisporium being placed on the bottom wall, the perisporium and bottom wall formation first chamber；
Supporting plate for being abreast arranged at the first chamber with the bottom wall, the surrounding of the supporting plate and the perisporium
It is covered with connection and the second chamber formed between the supporting plate and the bottom wall in first chamber, the supporting plate
Pellicle；First hole is connected with second hole with the second chamber.
2. the resin pool for photocuring 3D printer, it is characterised in that including：
Offer the bottom wall in the first hole and the second hole；
For the perisporium being placed on the bottom wall, the perisporium and bottom wall formation first chamber；
For the LCD display unit being abreast arranged at the bottom wall in the first chamber, the four of the LCD display unit
It is all that the second chamber being located in first chamber is connected and formed between the LCD display unit and the bottom wall with the perisporium,
Pellicle is covered on the LCD display unit, first hole is connected with second hole with the second chamber.
3. the resin pool according to claim 2 for photocuring 3D printer, it is characterised in that the bottom wall is transparent,
Also include：
For the heat sink for the lower surface for being fixedly connected on the bottom wall, the lower surface formation of the heat sink and the bottom wall the
Three chambers, the heat sink has the 4th chamber in the portion that is formed within, and with the 3rd hole with the 4th chamber
With the 4th hole；
For being arranged on the light source on the heat sink and being in the 3rd chamber.
4. the resin pool according to claim 1 or 2 for photocuring 3D printer, it is characterised in that first hole
The two ends of the maximum gauge of the bottom wall are arranged at second hole.
5. the resin pool according to claim 3 for photocuring 3D printer, it is characterised in that including：
Heat emission fan for being arranged on the heat sink bottom.
6. a kind of photocuring 3D printer, it is characterised in that including：
Resin pool according to any one of claims 1 to 5.
7. a kind of photocuring 3D printer, it is characterised in that including：
External frame；
It is arranged at the resin pool as described in claim 3 or 5 in the external frame；
For the liquid container with the first pipeline and second pipe being arranged in the external frame, first pipeline and
The second hole connection, the second pipe is connected with the 4th hole；
The 3rd pipeline for connecting first hole and the 3rd hole；
For the pump being arranged on first pipeline.
8. photocuring 3D printer according to claim 7, it is characterised in that including：
It is arranged at the thermal component being located between the pump and the resin pool on first pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510616273.3A CN105109048B (en) | 2015-09-24 | 2015-09-24 | Resin pool and 3D printer for photocuring 3D printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510616273.3A CN105109048B (en) | 2015-09-24 | 2015-09-24 | Resin pool and 3D printer for photocuring 3D printer |
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| Publication Number | Publication Date |
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| CN105109048A CN105109048A (en) | 2015-12-02 |
| CN105109048B true CN105109048B (en) | 2017-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510616273.3A Active CN105109048B (en) | 2015-09-24 | 2015-09-24 | Resin pool and 3D printer for photocuring 3D printer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3508332A1 (en) * | 2018-01-04 | 2019-07-10 | Sindoh Co., Ltd. | 3d printer with cooling function |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017120807A1 (en) * | 2016-01-13 | 2017-07-20 | 中国科学院福建物质结构研究所 | Semi-permeable element, use thereof and preparation method therefor and 3d printing device |
| CN105922587B (en) * | 2016-05-19 | 2019-02-01 | 深圳长朗智能科技有限公司 | A kind of continuous photocuring 3D printing equipment and its application method |
| US11465339B2 (en) * | 2016-05-31 | 2022-10-11 | Northwestern University | Method for the fabrication of three-dimensional objects and apparatus for same |
| WO2018032531A1 (en) * | 2016-08-19 | 2018-02-22 | 北京金达雷科技有限公司 | Stereolithographic 3d printer and 3d printing method |
| CN106985392A (en) * | 2017-03-14 | 2017-07-28 | 北京金达雷科技有限公司 | Photocuring 3D printer and its resin pool component |
| CN107283827A (en) * | 2017-07-26 | 2017-10-24 | 江苏时间环三维科技有限公司 | A kind of LCD liquid crystal display coldplates based on LCD photocuring 3D printers |
| WO2019203871A1 (en) * | 2018-04-17 | 2019-10-24 | Bmf Material Technology Inc. | Membrane-coating stereolithography |
| FI129107B (en) * | 2018-06-28 | 2021-07-15 | Planmeca Oy | Stereolithography apparatus equipped with shutter cooling channel |
| CN109532002A (en) * | 2018-12-28 | 2019-03-29 | 北京金达雷科技有限公司 | Photocuring 3D printer |
| CN111016163B (en) * | 2019-12-04 | 2022-05-10 | 上海联泰科技股份有限公司 | Container, temperature control mechanism of container, 3D printing equipment and method |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204160775U (en) * | 2014-10-14 | 2015-02-18 | 优克多维(大连)科技有限公司 | The 3D printer that a kind of novel high-precision light-cured resin is shaping |
| CN104760291A (en) * | 2015-04-24 | 2015-07-08 | 京东方科技集团股份有限公司 | 3D printing device and method |
| CN104890245B (en) * | 2015-04-28 | 2017-07-28 | 北京金达雷科技有限公司 | A kind of photosensitive resin pond and utilize its photocuring 3D printer and Method of printing |
| CN205033603U (en) * | 2015-09-24 | 2016-02-17 | 北京金达雷科技有限公司 | A resin pond and 3D printer for photocuring 3D printer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3508332A1 (en) * | 2018-01-04 | 2019-07-10 | Sindoh Co., Ltd. | 3d printer with cooling function |
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Effective date of registration: 20181115 Address after: 535008, 5th Floor, 6th Floor, Light Equipment Production Building, No. 5 Zhongma Avenue, Zhongma Qinzhou Industrial Park, Qinzhou City, Guangxi Zhuang Autonomous Region Patentee after: GUANGXI ZHONGMA INDUSTRIAL PARK MANUFACTURED BY YOU TECHNOLOGY Co.,Ltd. Address before: Room 2008, Science and Technology Building, No. 9 South Street, Zhongcun, Haidian District, Beijing Patentee before: GOLD ARRAY TECHNOLOGY (BEIJING), LLC |
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Effective date of registration: 20230619 Address after: 21st Floor, 9th Floor, Building 683, Zone 2, No. 5 Zhongguancun South Street, Haidian District, Beijing, 100081 Patentee after: Youyouzao Technology (Beijing) Co.,Ltd. Address before: 535008 5th Floor, Building 6, Light Equipment Production Building, Science Park (Entrepreneurship Incubation Base), No. 5, Zhongma Street, Zhongma Qinzhou Industrial Park, Guangxi Patentee before: GUANGXI ZHONGMA INDUSTRIAL PARK MANUFACTURED BY YOU TECHNOLOGY Co.,Ltd. |