CN103885248A - Friction roller - Google Patents
Friction roller Download PDFInfo
- Publication number
- CN103885248A CN103885248A CN201410083743.XA CN201410083743A CN103885248A CN 103885248 A CN103885248 A CN 103885248A CN 201410083743 A CN201410083743 A CN 201410083743A CN 103885248 A CN103885248 A CN 103885248A
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- Prior art keywords
- friction
- cloth
- friction cloth
- roll shaft
- roller
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Abstract
The invention provides a friction roller and belongs to the technical field of liquid crystal display device manufacturing. The problems that an existing friction roller is poor in friction in a friction technology, and friction cloth is prone to falling off can be solved. The friction roller comprises a roller shaft and friction cloth, wherein the friction cloth is of a tubular structure and fixed to the roller shaft in an embedded mode.
Description
Technical field
The invention belongs to liquid crystal indicator manufacturing technology field, be specifically related to a kind of friction roller.
Background technology
Friction (Rubbing) technique in field of liquid crystal display refers to by friction roller carries out friction orientation in the alignment film surface on array base palte or color membrane substrates with certain orientation, thereby forms the groove that allows liquid crystal have tilt angle to arrange.Wherein friction roller comprises: roll shaft and be attached to the friction cloth (Rubbing Cloth) on roll shaft, the cloth that conventionally rubs adopts nylon cloth, fiber or cotton.The quality of friction cloth and braiding gimmick etc. can directly affect the good and bad degree of friction process.
As depicted in figs. 1 and 2, friction cloth 100 of the prior art is woven by plane V weave, cloth hair 101 adopts acrylic glue 300 to be fixed on friction cloth 100 conventionally, and adopt double faced adhesive tape that friction cloth 100 is fixed on roll shaft 200, wherein acrylic glue 300 has good flexibility, but the retractility not had.Fig. 3 shows the structure after the friction cloth 100 weaving with plane V weave in prior art is attached on roll shaft 200.
Inventor finds that in prior art, at least there are the following problems: after the friction cloth 100 that plane V weave weaves is attached on roll shaft 200, owing to can producing inevitable gap at friction cloth two ends link position, and this gap place covers without friction cloth 100, now in the time of friction process, friction roller turns to without the place that covers of friction cloth 100 and cannot carry out friction orientation to alignment film, will produce the phenomenon of friction bad (B-Mura), thereby cause the quality problems of liquid crystal display.And the friction cloth 100 that prior art is sticked is owing to being to adopt the viscosity of glue to stick roll shaft 200, now probably occurs at gap place the phenomenon that cloth is de-, cloth 100 Automatic-fallings that rub in the process of friction, thus cause occurring massive losses.
Summary of the invention
Technical matters to be solved by this invention comprises, for the above-mentioned problem of existing friction roller existence, provides a kind of and can avoid the bad friction roller that rubs.
Solving the technical scheme that the technology of the present invention problem adopts is a kind of friction roller, comprises roll shaft and friction cloth, and wherein, described friction cloth is tubular structure, and described friction cloth is nested and be fixed on described roll shaft.
Friction cloth of the present invention is tubular cloth, therefore it can be by parcel seamless roll shaft, in the time carrying out friction process, can avoid in prior art because friction cloth is that plane being fixed on roller bearing can produce inevitable gap, cause friction orientation to produce B-Mura and the problem that comes off of friction cloth, and then yield and display quality that can improving product.
Preferably, described friction cloth is fixed on described roll shaft by elastic gum.
Further preferably, described elastic gum is rubber.
Preferably, the radius of the tubular structure of described friction cloth is less than the radius of roll shaft.
Preferably, described friction cloth is the friction cloth that adopts the friction cloth of annular V weave or adopt annular W weave.
Preferably, described friction cloth is any one in nylon cloth, fiber, cotton.
Brief description of the drawings
Fig. 1 is the schematic diagram of existing friction cloth;
Fig. 2 is the structural drawing of existing friction cloth;
Fig. 3 is the schematic diagram of existing friction roller;
Fig. 4 is the side view of the friction roller of embodiments of the invention 1;
Fig. 5 is the structural drawing of the friction cloth of embodiments of the invention 1;
Fig. 6 is the stereographic map of the friction roller of embodiments of the invention 1.
Wherein Reference numeral is: 100, friction cloth; 101, cloth hair; 200, roll shaft; 300, acrylic glue.
Embodiment
For making those skilled in the art understand better technical scheme of the present invention, below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Embodiment 1:
As shown in Figs. 4-6, the present embodiment provides a kind of friction roller, and it comprises roll shaft 200 and friction cloth 100, and this friction cloth 100 is tubular structure, and friction cloth 100 is nested and be fixed on roll shaft 200.
Because the friction cloth 100 of the present embodiment is tubular cloth, therefore it can be by parcel seamless roll shaft 200, now in the time carrying out friction process, can avoid in prior art because friction cloth 100 is that plane being fixed on roll shaft 200 can produce inevitable gap, cause friction orientation to produce B-Mura and the problem that comes off of friction cloth 100, and then yield and display quality that can improving product.
The cloth 100 that rubs in the present embodiment preferably adopts elastic gum to fix with roll shaft 200, and this elastic gum is preferably rubber, can certainly be that other have flexible fixing glue.Meanwhile, preferably the rub radius of tubular structure of cloth 100 is less than the radius of roll shaft 200.Now this friction cloth 100 is enclosed within and on roll shaft 200, carries out friction orientation, elastic gum will produce certain convergent force, the radius that is now less than roll shaft 200 due to the radius of friction cloth 100, friction cloth 100 will can not produce because of the contraction of elastic gum fold, affects friction orientation and causes demonstration bad.
Be understandable that, friction cloth 100 itself be have certain flexible, so in the time that the radius of friction cloth 100 is slightly less than the radius of roll shaft 200, friction cloth 100 also can be enclosed within on roll shaft 200, and now, in the time of friction orientation, friction roller is squeezed, elastic gum shrinks, friction cloth 100 is because the elasticity of self is also shunk thereupon, and the friction cloth 100 being enclosed within on roll shaft 200 can not produce fold yet, that is to say the carrying out that can not have influence on friction process.Certainly, the uniformity coefficient of the cloth hair 101 of the cloth 100 that wherein rubs is consistent with the uniformity coefficient of existing friction cloth 100, so also can not have influence on the orientation of liquid crystal.
In the present embodiment, friction cloth 100 is preferably the friction cloth 100 that adopts annular V weave or the friction cloth 100 that adopts annular W weave.Can certainly be the friction cloth 100 that other weaves weave, as long as ensure the 100 one-tenth tubular structures of friction cloth that weave.This friction cloth 100 can be preferably: any one in nylon cloth, fiber, cotton.Can certainly be the cloth of other materials, as long as can realize friction orientation.
Be understandable that, above embodiment is only used to principle of the present invention is described and the illustrative embodiments that adopts, but the present invention is not limited thereto.For those skilled in the art, without departing from the spirit and substance in the present invention, can make various modification and improvement, these modification and improvement are also considered as protection scope of the present invention.
Claims (6)
1. a friction roller, comprises roll shaft and friction cloth, it is characterized in that, described friction cloth is tubular structure, and described friction cloth is nested and be fixed on described roll shaft.
2. friction roller according to claim 1, is characterized in that, described friction cloth is fixed on described roll shaft by elastic gum.
3. friction roller according to claim 2, is characterized in that, described elastic gum is rubber.
4. according to the friction roller described in any one in claim 1～3, it is characterized in that, the radius of the tubular structure of described friction cloth is less than the radius of roll shaft.
5. according to the friction roller described in any one in claim 1～3, it is characterized in that, described friction cloth is the friction cloth that adopts the friction cloth of annular V weave or adopt annular W weave.
6. according to the friction roller described in any one in claim 1～3, it is characterized in that, described friction cloth is any one in nylon cloth, fiber, cotton.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410083743.XA CN103885248A (en) | 2014-03-07 | 2014-03-07 | Friction roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410083743.XA CN103885248A (en) | 2014-03-07 | 2014-03-07 | Friction roller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103885248A true CN103885248A (en) | 2014-06-25 |
Family
ID=50954215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410083743.XA Pending CN103885248A (en) | 2014-03-07 | 2014-03-07 | Friction roller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103885248A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH043123A (en) * | 1990-04-20 | 1992-01-08 | Toei Sangyo Kk | Roll brush for rubbing and production thereof |
| CN1621472A (en) * | 2003-10-15 | 2005-06-01 | 琳得科株式会社 | Double faced adhesive tape for grinding cloth and grinding sheet with the adhesive tape for roller winding |
| CN101334560A (en) * | 2007-06-29 | 2008-12-31 | 影岛丝绒股份有限公司 | Directional cloth for liquid crystal display device and directional friction device possessing the directional cloth |
| CN101923252A (en) * | 2009-06-10 | 2010-12-22 | 富士胶片株式会社 | The manufacture method of rubbing method, device, alignment films and optical component |
| KR20110046733A (en) * | 2009-10-29 | 2011-05-06 | 전병섭 | Cloth of rubbing roller for rubbing apparatus |
| JP2011160948A (en) * | 2010-02-09 | 2011-08-25 | Sanwa Techno Kk | Method for manufacturing functional cylindrical brushing roller |
| CN102455546A (en) * | 2010-10-20 | 2012-05-16 | 京东方科技集团股份有限公司 | Friction fabric used for oriented membrane friction process |
| CN202443222U (en) * | 2012-02-27 | 2012-09-19 | 北京京东方光电科技有限公司 | Production device for friction roll |
-
2014
- 2014-03-07 CN CN201410083743.XA patent/CN103885248A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH043123A (en) * | 1990-04-20 | 1992-01-08 | Toei Sangyo Kk | Roll brush for rubbing and production thereof |
| CN1621472A (en) * | 2003-10-15 | 2005-06-01 | 琳得科株式会社 | Double faced adhesive tape for grinding cloth and grinding sheet with the adhesive tape for roller winding |
| CN101334560A (en) * | 2007-06-29 | 2008-12-31 | 影岛丝绒股份有限公司 | Directional cloth for liquid crystal display device and directional friction device possessing the directional cloth |
| CN101923252A (en) * | 2009-06-10 | 2010-12-22 | 富士胶片株式会社 | The manufacture method of rubbing method, device, alignment films and optical component |
| KR20110046733A (en) * | 2009-10-29 | 2011-05-06 | 전병섭 | Cloth of rubbing roller for rubbing apparatus |
| JP2011160948A (en) * | 2010-02-09 | 2011-08-25 | Sanwa Techno Kk | Method for manufacturing functional cylindrical brushing roller |
| CN102455546A (en) * | 2010-10-20 | 2012-05-16 | 京东方科技集团股份有限公司 | Friction fabric used for oriented membrane friction process |
| CN202443222U (en) * | 2012-02-27 | 2012-09-19 | 北京京东方光电科技有限公司 | Production device for friction roll |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140625 |