CN202600309U - Coating device for forming oriented films - Google Patents
Coating device for forming oriented films Download PDFInfo
- Publication number
- CN202600309U CN202600309U CN 201220184048 CN201220184048U CN202600309U CN 202600309 U CN202600309 U CN 202600309U CN 201220184048 CN201220184048 CN 201220184048 CN 201220184048 U CN201220184048 U CN 201220184048U CN 202600309 U CN202600309 U CN 202600309U
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- China
- Prior art keywords
- liquid
- holding groove
- orientation
- point gum
- gum machine
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- Expired - Fee Related
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Abstract
The utility model relates to the technical field of displaying, and discloses a novel coating device for forming oriented films. The coating device comprises a dispenser, a blade roll, an Anilox roll and a spring roll. A liquid tank is arranged below the blade roll and used for containing orienting liquid discharged from the dispenser. Since a buffer tank and the liquid tank are arranged on a side of the blade roll and below the blade roll respectively, the orienting liquid discharged from a nozzle the dispenser flows into the liquid tank through the buffer tank, the height of the orienting liquid above the blade roll can be controlled by controlling discharge speed of the nozzle, and a proper quantity of orienting liquid can be provided all the time so as to guarantee continuous printing. In addition, the orienting liquid cannot splash, so that unevenness of thickness of the orienting liquid on the Anilox roll is avoided, the thicknesses of the oriented films on substrates are uniform, and printing quality is improved.
Description
Technical field
The utility model relates to the display technique field, particularly relates to a kind of coating unit that is used to form alignment films.
Background technology
Thin Film Transistor-LCD (Thin Film Transistor-Liquid Crystal Display; TFT-LCD) in the industry liquid crystal panel manufacturing technology; Alignment films is printed on orientation liquid on array base palte and the color membrane substrates by the alignment films coating unit; In printing process, use N2 to be pressed into orientation liquid, between smoothing roller (Anilox Roll) both sides, moving around to spue through point gum machine (Dispenser) is orientated liquid in right amount; Thereby make there is an amount of orientation liquid on the smoothing roller of coating unit always, carry out continuously with the printing that guarantees alignment films.
Existing alignment films coating unit is that point gum machine passes through nozzle (Nozzle) and will be orientated the contact position that drop is added to smoothing roller and scraper (Blade Roll); Scraper the coating of the orientation liquid on the smoothing roller evenly; Smoothing roller with hang with the print roller that is pre-formed the graph transfer printing version and contact; To be orientated liquid and be transferred on the print roller, and be printed onto substrate surface to orientation liquid through print roller at last and form alignment films.
But there is certain defective in above-mentioned alignment films printing technology in actual application: the orientation liquid impulsive force that point gum machine spues is bigger, and it is far away to store the zone that is orientated liquid between the nozzle distance smoothing roller of point gum machine and the scraper, is easy to generate splash; When nozzle is too near to smoothing roller; The orientation liquid of nozzle ejection directly sprays to the zone that stores orientation liquid between smoothing roller and the scraper; The orientation liquid in this zone is splash, and the direct directive smoothing roller of the orientation liquid that splashes surface causes the smoothing roller surface should zone orientation liquid thickness regional greatly than other; Scraper can't be scraped it evenly in the short time, thereby influenced the printing of the alignment films of substrate surface.
The utility model content
The technical matters that (one) will solve
The technical matters that the utility model will solve is how to eliminate in the alignment films printing process because of the caused alignment films printing of being provided with of alignment films coating unit structure bad phenomenon.
(2) technical scheme
In order to solve the problems of the technologies described above; The utility model provides a kind of coating unit that is used to form alignment films; Comprise point gum machine, scraper, smoothing roller and print roller, said scraper bottom is provided with liquid holding groove, and said liquid holding groove is used to hold the orientation liquid that point gum machine spues.
Wherein, said liquid holding groove one end is communicated with dashpot, and said dashpot is arranged on said point gum machine below.
Wherein, the nozzle of said point gum machine is connected with said dashpot.
Wherein, the length direction of said liquid holding groove is parallel to the axial of said smoothing roller.
Wherein, be provided with orientation liquid height measurement unit in the said liquid holding groove, measure the height of orientation liquid in the said liquid holding groove in real time.
Wherein, said orientation liquid height measurement unit comprises the liquid level sensor that is arranged in the said liquid holding groove.
Wherein, Also comprise respectively the liquid flow controller that is connected with said point gum machine nozzle with said orientation liquid height measurement unit; Be used for when the height of orientation liquid in the said liquid holding groove is greater than or less than the setting height value; The orientation liquid of the adjusting said point gum machine nozzle speed that spues makes that the height of orientation liquid equals the setting height value in the said liquid holding groove.
(3) beneficial effect
The coating unit that technique scheme provided; Set up dashpot and liquid holding groove respectively in scraper side and bottom; After the orientation liquid that makes the point gum machine nozzle spue passes through dashpot; Get into liquid holding groove, can carry out continuously thereby realize having all the time an amount of orientation liquid to print through the orientation liquid height in the speed that the spues management and control liquid holding groove of control nozzle with assurance; Orientation liquid can not produce splash, has avoided the irregular phenomenon of orientation liquid thickness on the smoothing roller, realizes that the thickness of alignment films on the substrate is even, and printing quality is improved.
Description of drawings
Fig. 1 is the structural representation of the coating unit of the utility model embodiment;
Fig. 2 is the use synoptic diagram of the coating unit of the utility model embodiment.
Wherein, 1: point gum machine; 2: scraper; 3: orientation liquid; 4: smoothing roller; 5: dashpot; 6: liquid holding groove.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the embodiment of the utility model is described in further detail.Following examples are used to explain the utility model, but are not used for limiting the scope of the utility model.
Fig. 1 shows the structural representation of the coating unit of present embodiment, the synoptic diagram when Fig. 2 is its concrete use.With reference to diagram; This coating unit comprises point gum machine 1, scraper 2, smoothing roller 4 and print roller etc.; Scraper 2 is positioned at smoothing roller 4 axial sides, is provided with liquid holding groove 6 in scraper 2 bottoms, and the length direction of liquid holding groove 6 is parallel to the axial of smoothing roller 4; Hold orientation liquid 3 in the liquid holding groove 6, point gum machine 1 is positioned at liquid holding groove 6 tops.When directly spitting into liquid holding groove 6 by the nozzle of point gum machine 1 in order to prevent to be orientated liquid 3; Cause the splash of orientation liquid, cause the irregular phenomenon of orientation liquid thickness on the smoothing roller, coupled logical dashpot 5 is set at liquid holding groove 6 one ends; Dashpot 5 is positioned at the nozzle and coupled the leading to of point gum machine 1; Point gum machine 1 spues in dashpot 5 through nozzle and is orientated liquid 3, and orientation liquid 3 flow to liquid holding groove 6 by dashpot 5, guarantees the follow-up homogeneity that is formed on the alignment films thickness on the substrate.
In order to satisfy the needs that form the alignment films of different-thickness on the substrate; Can realize through the height of orientation liquid 3 in the control present embodiment liquid holding groove 6; Orientation liquid height measurement unit can be set in liquid holding groove 6; Measure the height of orientation liquid 3 in the liquid holding groove 6 in real time, the measurement that liquid level sensor (not indicating among the figure) is orientated liquid 3 height specifically can be set in liquid holding groove 6; And the liquid flow controller that is connected with the nozzle of orientation liquid height measurement unit and point gum machine 1 is set respectively; Be used for when the height of orientation liquid 3 in the liquid holding groove 6 is greater than or less than the setting height value; The orientation liquid of nozzle of adjustment point gum machine 1 speed that spues; Make the height of liquid holding groove 6 interior orientation liquid 3 equal the setting height value, satisfy the film formed needs of orientation of different-thickness.
When using the coating unit of present embodiment to carry out the alignment films printing, through the spue speed of orientation liquid 3 of control point gum machine 1 top nozzle, make the orientation liquid 3 that has the setting height value in the liquid holding groove 6, the thickness that is coated in the orientation liquid 3 on the smoothing roller 4 is corresponding evenly.On needs adjustment smoothing roller 4 during the thickness of orientation liquid 3, the spue speed of orientation liquid of adjustment point gum machine 1 top nozzle gets final product.
Can find out by above embodiment; The utility model is through setting up dashpot and liquid holding groove respectively in scraper side and bottom; After the orientation liquid that makes point gum machine spue passes through dashpot; Get into liquid holding groove, can carry out continuously thereby realize having all the time an amount of orientation liquid to print through the orientation liquid height in the speed that the spues management and control liquid holding groove of control nozzle with assurance; Orientation liquid can not produce splash, has avoided the irregular phenomenon of orientation liquid thickness on the smoothing roller, realizes that the thickness of alignment films on the substrate is even, and printing quality is improved.
The above only is the preferred implementation of the utility model; Should be understood that; For those skilled in the art; Under the prerequisite that does not break away from the utility model know-why, can also make some improvement and replacement, these improvement and replacement also should be regarded as the protection domain of the utility model.
Claims (7)
1. a coating unit that is used to form alignment films comprises point gum machine, scraper, smoothing roller and print roller, it is characterized in that, said scraper bottom is provided with liquid holding groove, and said liquid holding groove is used to hold the orientation liquid that point gum machine spues.
2. coating unit as claimed in claim 1 is characterized in that, said liquid holding groove one end is communicated with dashpot, and said dashpot is arranged on said point gum machine below.
3. coating unit as claimed in claim 2 is characterized in that, the nozzle of said point gum machine is connected with said dashpot.
4. according to claim 1 or claim 2 coating unit is characterized in that, the length direction of said liquid holding groove be parallel to said smoothing roller axially.
5. coating unit as claimed in claim 1 is characterized in that, is provided with orientation liquid height measurement unit in the said liquid holding groove, measures the height of orientation liquid in the said liquid holding groove in real time.
6. coating unit as claimed in claim 5 is characterized in that, said orientation liquid height measurement unit comprises the liquid level sensor that is arranged in the said liquid holding groove.
7. like claim 5 or 6 described coating units; It is characterized in that; Also comprise respectively the liquid flow controller that is connected with said point gum machine nozzle with said orientation liquid height measurement unit; Be used for height when orientation liquid in the said liquid holding groove when being greater than or less than the setting height value, the orientation liquid of the adjusting said point gum machine nozzle speed that spues makes that the height of orientation liquid equals the setting height value in the said liquid holding groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220184048 CN202600309U (en) | 2012-04-26 | 2012-04-26 | Coating device for forming oriented films |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220184048 CN202600309U (en) | 2012-04-26 | 2012-04-26 | Coating device for forming oriented films |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202600309U true CN202600309U (en) | 2012-12-12 |
Family
ID=47317838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220184048 Expired - Fee Related CN202600309U (en) | 2012-04-26 | 2012-04-26 | Coating device for forming oriented films |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202600309U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103611427A (en) * | 2013-11-20 | 2014-03-05 | 广州中国科学院先进技术研究所 | Feed-liquid distributing groove of small and medium sized flat-plate film scraping machine |
| CN108525895A (en) * | 2018-04-17 | 2018-09-14 | 京东方科技集团股份有限公司 | A kind of control method of alignment films print system and printing equipment |
-
2012
- 2012-04-26 CN CN 201220184048 patent/CN202600309U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103611427A (en) * | 2013-11-20 | 2014-03-05 | 广州中国科学院先进技术研究所 | Feed-liquid distributing groove of small and medium sized flat-plate film scraping machine |
| CN103611427B (en) * | 2013-11-20 | 2015-07-29 | 广州中国科学院先进技术研究所 | A kind of feed liquid distributing slot of middle-size and small-size flat membrane casting equipment |
| CN108525895A (en) * | 2018-04-17 | 2018-09-14 | 京东方科技集团股份有限公司 | A kind of control method of alignment films print system and printing equipment |
| CN108525895B (en) * | 2018-04-17 | 2019-08-27 | 京东方科技集团股份有限公司 | A kind of control method of alignment films print system and printing equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121212 Termination date: 20210426 |