CN206631852U - A kind of apparatus for coating for optical film production - Google Patents
A kind of apparatus for coating for optical film production Download PDFInfo
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- CN206631852U CN206631852U CN201621448100.1U CN201621448100U CN206631852U CN 206631852 U CN206631852 U CN 206631852U CN 201621448100 U CN201621448100 U CN 201621448100U CN 206631852 U CN206631852 U CN 206631852U
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- coating
- optical film
- column spinner
- film production
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Abstract
The utility model provides a kind of apparatus for coating for optical film production, include feed section and coated portion, feed section includes circulation storage vat, agitating device, charging pump, feed pipe, filter, liquid dish, liquid back pipe, and coated portion includes applicator roll, doctor blade system, coating pan, liquid barrier, the side shield with outage, coating fluid homogenizer, basement membrane.A coating fluid homogenizer is provided with coating trench bottom, the utility model avoids coating pan dead angle because the disadvantage such as wire drawing, bar road, dark line, idea caused by particle precipitation, coating fluid flowing do not cause freely coating fluid viscosity unequal, optical film continuous and stable production is realized, improves yield.
Description
Technical field
Thin film technique field is the utility model is related to, more particularly to the system being coated with for optical film.
Background technology
In TFT-LCD field of liquid crystal display, in order to obtain that desired optical film can be met, such as reflectance coating, diffusion barrier, increasing
Bright film, compound DBEF films etc. in the front of different optics supporting carrier films or backside coating, it is necessary to contain the painting of optical particle
Material, it is necessary to which coating is uniformly coated on different optics supporting carrier films by coating unit in coating produces.Due to coating
In the optical particle containing various different grains warps, in order to ensure that optical particle is uniformly coated on optics supporting carrier film, lead to
Carried out frequently with roller coat, rotogravure application or nick version coating unit.
In actual applications, above coating method there are following deficiency, and mainly in coating procedure, coating pan supplies
The uneven feed of liquid single-point or multiple spot, coating is distributed in coating pan, flow velocity is uneven, and flow velocity is slow, produces vortex, causes light
After the aggregation for learning particle, coating trench bottom is deposited on, can not in time remove, cause coating to form quality disadvantage in coating process
Disease, such as wire drawing, dark line, bar road are, it is necessary to which frequent stop cleaning coating head and coating pan, cause to coat production disruption, Wu Fajin
Row continuous production.
Utility model content
Technical problem to be solved in the utility model is in view of the shortcomings of the prior art, there is provided one kind is used to produce optics
The coating system of film, it can solve optical particle, and easily deposition is asked with what can not be removed after aggregate particles deposition in coating pan
Topic, realizes continuous production.
In order to solve the above technical problems, the utility model adopts the following technical scheme that：
A kind of apparatus for coating for optical film production, including feed section and coated portion, feed section include circulation
Storage vat, agitating device, charging pump, feed pipe, filter, liquid dish, liquid back pipe, coated portion include applicator roll, scraper system
System, coating pan, liquid barrier, the side shield with outage, basement membrane, coating trench bottom is provided with a coating fluid below liquid barrier
Homogenizer.
Coating pan trench bottom is provided with coating fluid homogenizer below liquid barrier, and coating fluid homogenizer includes two parts,
Part I is precipitation collecting tank, and depth is in 0-50mm, and Part II is that column spinner is provided with groove, and the diameter of column spinner exists
5mm-50mm, total joint number is in 10-100, and the angle of embedded collecting tank is in 0-360 degree, and insert depth is between 0-50mm.
The above-mentioned apparatus for coating for optical film production, coating trench bottom set 1-3 coating fluid homogenizer, column spinner
Revolution 5-300 turn/min.
The above-mentioned apparatus for coating for optical film production, the shank diameter d1 of column spinner and the diameter d2 of leaf arrange in pairs or groups 1:10-
1:Between 2.
The above-mentioned apparatus for coating for optical film production, the angle beta of the leaf of column spinner is between 5-80 degree.
The above-mentioned apparatus for coating for optical film production, distance of the column spinner away from liquid barrier bottom is between 0.1mm-5mm.
The above-mentioned apparatus for coating for optical film production, the angle beta of the leaf of column spinner can be designed to that both sides are symmetrical, also may be used
It is consistent with design angle.
The above-mentioned apparatus for coating for optical film production, there is outage on the side shield of coating pan both sides or side for applying
Cloth liquid stream goes out.
The above-mentioned apparatus for coating for optical film production, the surface roughness Ra of the column spinner are less than 0.05, coating pan
The surface roughness Ra of bottom is less than 0.05.
The beneficial effects of the utility model are, in single-point and multiple spot feed section, because applicator roll causes to centrifuge
The effect of power and gravity, aggregate particles and big particle are easier to be split into the bottom of coating pan, are set in coating trench bottom
There is coating fluid homogenizer, by the rotation of column spinner in coating fluid homogenizer, drive coating fluid flowing, prevent aggregate particles
Deposition, while the rotation of column spinner can drive the coating fluid containing aggregate particles to be flowed to the direction of setting, from the row of side shield
Fluid apertures is discharged to liquid dish, reduces deposition of the aggregate particles in coating pan, avoid the need for repeatedly stop cleaning coating pan and
Applicator roll causes the reduction of production efficiency；The particle of aggregation and big footpath particle are back to by the leakage fluid dram of side shield and connect liquid simultaneously
Disk, then conveyed by ball valve, circulating pump, filter filters out major part therein.The utility model realizes macrocyclic
Continuous production, solve the quality drawback such as quality problems such as wire drawing, dark line, bar road, crawling existing for coating optical film,
Avoid due to coating fluid mixed in coating pan it is bad caused by strip crawling, it is continuous to realize not shutting down for optical film
Production.
Brief description of the drawings
Fig. 1 is the coating system schematic diagram of continuous production optical film provided by the utility model；
The schematic diagram of the two-way coating fluid homogenizer column spinners of Fig. 2；
The schematic diagram of the unidirectional coating fluid homogenizer column spinners of Fig. 3.
Each label is expressed as in figure：
1st, liquid back pipe, 2, new liquid supplement pipe, 3, liquid-supplying bucket, 4, feed flow stirring, 5, feed flow valve, 6, solution feed pump, 7, filtering
Device, 8, feed pipe, 9, coating fluid homogenizer, 10, coating pan, 11, confession fluid apertures, 12, liquid barrier, 13, applicator roll, 14, scraper,
15th, liquid dish, 16, basement membrane, 17, outage, 18, side shield.
Embodiment
The utility model includes feed section and coated portion, and institute's feed section includes circulation storage vat, agitating device, confession
Expect pump, feed pipe, filter, liquid dish, liquid back pipe, coated portion includes applicator roll, doctor blade system, coating pan, liquid barrier, band
There are the side shield of outage, basement membrane, be provided with coating fluid homogenizer in the bottom of coating pan, coating fluid homogenizer there are two parts
Composition, Part I be precipitation collecting tank, for depth in 0-50mm, Part II is that column spinner is provided with groove, column spinner it is straight
Footpath is in 5-50mm, and total joint number is at 10-100, and in 0-360 degree, insert depth leads to the angle of embedded collecting tank between 0-50mm
The rotation of column spinner in coating fluid homogenizer is crossed, coating fluid flowing is driven, prevents aggregate particles from depositing, while turn of column spinner
It is dynamic that the coating fluid containing aggregate particles can be driven to be flowed to the direction of setting, liquid dish is discharged to from the outage of side shield, is reduced
Depositions of the aggregate particles in coating pan, solving optical particle can not be clear easily after deposition and aggregate particles deposition in coating pan
Except the problem of, realize continuous production.
Utility model is further elaborated below in conjunction with drawings and Examples, but these embodiments are merely to illustrate this reality
With new principle, rather than limitation the scope of protection of the utility model.
The coating system of production optical thin film provided by the utility model, including feed section and coated portion, such as accompanying drawing 1
It is shown, wherein, feed section includes liquid dish 15, return duct 1, virgin material supplement pipe 2, liquid-supplying bucket 3, feed flow stirring 4, feed flow valve
5th, solution feed pump 6, filter 7, feed pipe 8 etc., coated portion include coating pan 10, liquid barrier 12, applicator roll 13, scraper 14, side
Baffle plate 18, coating fluid homogenizer 9 etc..Feed section extracts coating fluid from feeding box 3 out, by filtering, is sent in coating pan,
Coating in coating pan 10 by applicator roll 13 constantly by applying coating on the surface of basement membrane 16, passed through by the coating of coating pan overflow
Liquid dish 15, return duct 1 return to feeding box 3, it is achieved thereby that a circulation.
The coating fluid homogenizer that the bottom of coating pan 10 is arranged in the utility model is embedded in particle collection groove, is collected
For groove depth in 0-50mm, preferably 10-30mm, collection slot cross-section is semicircle or arc, and deep can be semicircle and rectangle
Combination, semicircle and depends on precipitation cleaning coating fluid homogenizer precipitation cleaning coating fluid homogenizer rotation with the radius of arc
The diameter of post, the diameter of column spinner is in 5-50mm, preferably 10-30mm, and the angle beta of column spinner is between 5-80 degree, preferably 10-60
Degree, total joint number is at 10-100, and the angle of embedded collecting tank is in 0-360 degree, insert depth preferred 10- between 0-50mm
30mm, by coating fluid homogenizer, prevent aggregate particles from depositing, and the particle of deposition cleared out of into coating pan at any time,
And it is well mixed uneven coating fluid is mixed.
The interior surface of coating pan 10, column spinner surface are smooth surface in the utility model, and inner transition is round and smooth
Transition.
Precipitation cleaning coating fluid homogenizer can set 1-3 in the utility model, and the angle of the leaf of column spinner is in 5-80
Between degree, the revolution of column spinner turns in 5-300/and min is adjustable；
Circulating pump can be selected from commercially available screw pump, gear pump, peristaltic pump, plunger pump in the utility model；With motor
Agitating paddle on agitating device 3 can be selected from paddle, rotary propeller type, turbine type or anchor formula agitating paddle, and motor can be positive and negative rotation
Speed governing explosion-proof motor or air motor, agitating device is arranged on the device that can adjust, can adjust the position of stirrer paddle
Put.
Embodiment 1
Stirred as shown in figure 1, feed section part includes liquid dish 15, return duct 1, virgin material supplement pipe 2, liquid-supplying bucket 3, feed flow
4, feed flow valve 5, solution feed pump 6, filter 7, feed pipe 8 etc. are mixed, coated portion includes coating pan 10, liquid barrier 12, applicator roll
13rd, scraper 14, side shield 18, coating fluid homogenizer 9 etc..Feed section extracts coating fluid from feeding box 3 out, by filtering,
Be sent in coating pan, the coating in coating pan 10 by applicator roll 13 constantly by applying coating on the surface of basement membrane 16, by being coated with
The coating of groove overflow returns to feeding box 3 through liquid dish 15, return duct 1, it is achieved thereby that a circulation.
The quantity of charging aperture 11 is 1, in coating pan middle, a diameter of 14mm of charging aperture 11, collects groove depth and exists
10mm, slot cross-section is collected as semicircle, the diameter of column spinner is 30 in 20mm, column spinner joint number, and the angle beta of column spinner is 23
The diameter ratio of degree, bar and leaf is 1:5, the angle of embedded collecting tank is 50 turns in 180 degree, insert depth 10-30mm, revolution, rotation
The radian of rotary column is designed as symmetric design, and material movement is promoted to both sides.The surface roughness Ra of rotating vane is less than 0.05, coating pan
The surface roughness Ra of bottom is less than 0.05.
Continuously after 24 hours of operation, stop feed, the material of fast evacuation coating pan 10, the bottom of coating pan 10 is found
There is white mass aggregation, by weighing its quality after collecting, drying.
Embodiment 2
As shown in figure 1, feed section is substantially the same manner as Example 1, wherein, the quantity of charging aperture 11 is 1, in coating pan
Middle, a diameter of 14mm of charging aperture 11, groove depth is collected in 10mm, collection slot cross-section is semicircle, the diameter of column spinner
In 20mm, column spinner joint number is 30, and the angle beta of column spinner is 1 in the diameter ratio of 23 degree bars and leaf:5, the angle of embedded collecting tank
Degree is 100 turns in 180 degree, insert depth 10-30mm, revolution, and the radian of column spinner is designed as symmetric design, and thing is promoted to both sides
Material motion.The surface roughness Ra of rotating vane is less than 0.05, and the surface roughness Ra for being coated with trench bottom is less than 0.05.
Continuously after 24 hours of operation, stop feed, the material of fast evacuation coating pan 10, the bottom of coating pan 10 is found
There is white mass aggregation, by weighing its quality after collecting, drying.
Embodiment 3
As shown in figure 1, feed section is substantially the same manner as Example 1, wherein, the quantity of charging aperture 11 is 1, in feeder channel
Middle, a diameter of 14mm of charging aperture 11, groove depth is collected in 10mm, collection slot cross-section is semicircle, the diameter of column spinner
In 20mm, column spinner joint number is 30, and at 23 degree, the diameter ratio of bar and leaf is 1 for the angle beta of column spinner:5, embedded collecting tank
Angle is 200 turns in 180 degree, insert depth 10-30mm, revolution, and the radian of column spinner is designed as symmetric design, is promoted to both sides
Material movement.The surface roughness Ra of rotating vane is less than 0.05, and the surface roughness Ra for being coated with trench bottom is less than 0.05.
Continuously after 24 hours of operation, stop feed, the material of fast evacuation coating pan 10, the bottom of coating pan 10 is found
There is white mass aggregation, by weighing its quality after collecting, drying.
Embodiment 4
As shown in figure 1, feed section is substantially the same manner as Example 1, wherein, the quantity of charging aperture 11 is 1, in feeder channel
Middle, a diameter of 14mm of charging aperture 11, groove depth is collected in 10mm, collection slot cross-section is semicircle, the diameter of column spinner
In 20mm, column spinner joint number is 30, and at 23 degree, the diameter ratio of bar and leaf is 1 for the angle beta of column spinner:5, embedded collecting tank
Angle is 300 turns in 180 degree, insert depth 10-30mm, revolution, and the radian of column spinner is designed as symmetric design, is promoted to both sides
Material movement.The surface roughness Ra of rotating vane is less than 0.05, and the surface roughness Ra for being coated with trench bottom is less than 0.05.
Continuously after 24 hours of operation, stop feed, the material of fast evacuation coating pan 10, the bottom of coating pan 10 is found
There is white mass aggregation, by weighing its quality after collecting, drying.
Comparative example 1
As shown in figure 1, feed section is substantially the same manner as Example 1, wherein, the quantity of charging aperture 11 is 1, in feeder channel
Middle, a diameter of 14mm of charging aperture 11, groove depth is collected in 10mm, collection slot cross-section is semicircle, the diameter of column spinner
In 20mm, column spinner joint number is 30, and at 23 degree, the diameter ratio of bar and leaf is 1 for the angle beta of column spinner:5, embedded collecting tank
Angle is 500 turns in 180 degree, insert depth 10-30mm, revolution, and the radian of column spinner is designed as symmetric design, is promoted to both sides
Material movement.The surface roughness Ra of rotating vane is less than 0.05, and the surface roughness Ra for being coated with trench bottom is less than 0.05.
As a result liquid perturbation is serious in coating pan, can not produce apparent qualified product.
Comparative example 2
As shown in figure 1, feed section is substantially the same manner as Example 1, wherein, the quantity of charging aperture 11 is 1, in feeder channel
Middle, a diameter of 14mm of charging aperture 11, it is semicircle to collect groove depth in 10mm, collection slot cross-section, and it is clear not install precipitation
Coating fluid homogenizer is managed, both ends outlet is shut, and the surface roughness Ra for being coated with trench bottom is less than 0.05.
Continuously after 24 hours of operation, stop feed, the material of fast evacuation coating pan 10, the bottom of coating pan 10 is found
There is white mass aggregation, by weighing its quality after collecting, drying.
Experimental result：
| Sequence number | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Comparative example 1 | Comparative example 2 |
| Aggregate particles weight (kg) | 0.205 | 0.188 | 0.150 | 0.145 | It can not produce | 0.688 |
Claims (9)
1. a kind of apparatus for coating for optical film production, including feed section and coated portion, feed section includes circulation and stored up
Charging basket, agitating device, charging pump, feed pipe, filter, liquid dish, liquid back pipe, coated portion include applicator roll, doctor blade system,
Coating pan, liquid barrier, the side shield with outage, basement membrane, it is characterized in that, trench bottom is coated with below liquid barrier provided with one
Coating fluid homogenizer.
2. the apparatus for coating according to claim 1 for optical film production, it is characterised in that be coated with below liquid barrier
Groove trench bottom is provided with coating fluid homogenizer, and coating fluid homogenizer includes two parts, and Part I is to precipitate collecting tank, depth
In 0-50mm, Part II is that column spinner is provided with groove, the diameter of column spinner in 5mm-50mm, total joint number at 10-100,
The angle of embedded collecting tank is in 0-360 degree, and insert depth is between 0-50mm.
3. the apparatus for coating according to claim 2 for optical film production, it is characterised in that coating trench bottom can be set
1-3 coating fluid homogenizer is put, the revolution of column spinner turns/min in 5-300.
4. the apparatus for coating according to claim 3 for optical film production, it is characterised in that the shank diameter d1 of column spinner
Arranged in pairs or groups with the diameter d2 of leaf 1:10-1:Between 2.
5. the apparatus for coating according to claim 4 for optical film production, it is characterised in that the angle of the leaf of column spinner
β is between 5-80 degree.
6. the apparatus for coating according to claim 5 for optical film production, it is characterised in that column spinner is away from liquid barrier bottom
Distance between 0.1mm-5mm.
7. the apparatus for coating according to claim 6 for optical film production, it is characterised in that the angle of the leaf of column spinner
β can be designed to that both sides are symmetrical, can also design angle it is consistent.
8. the apparatus for coating according to claim 7 for optical film production, it is characterised in that in coating pan both sides or one
There is outage to be flowed out for coating fluid on the side shield of side.
9. the apparatus for coating according to claim 8 for optical film production, it is characterised in that the surface of the column spinner
Roughness Ra is less than 0.05, and the surface roughness Ra for being coated with trench bottom is less than 0.05.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621448100.1U CN206631852U (en) | 2016-12-27 | 2016-12-27 | A kind of apparatus for coating for optical film production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621448100.1U CN206631852U (en) | 2016-12-27 | 2016-12-27 | A kind of apparatus for coating for optical film production |
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| Publication Number | Publication Date |
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| CN206631852U true CN206631852U (en) | 2017-11-14 |
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| CN201621448100.1U Active CN206631852U (en) | 2016-12-27 | 2016-12-27 | A kind of apparatus for coating for optical film production |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106513245A (en) * | 2016-12-27 | 2017-03-22 | 昆山乐凯锦富光电科技有限公司 | Coating system for production of optical films |
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2016
- 2016-12-27 CN CN201621448100.1U patent/CN206631852U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106513245A (en) * | 2016-12-27 | 2017-03-22 | 昆山乐凯锦富光电科技有限公司 | Coating system for production of optical films |
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