CN213182260U - Vacuum adsorption roll-to-roll friction alignment device - Google Patents
Vacuum adsorption roll-to-roll friction alignment device Download PDFInfo
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- CN213182260U CN213182260U CN202021669076.0U CN202021669076U CN213182260U CN 213182260 U CN213182260 U CN 213182260U CN 202021669076 U CN202021669076 U CN 202021669076U CN 213182260 U CN213182260 U CN 213182260U
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Abstract
The utility model discloses a device is joined in marriage to vacuum adsorption volume to volume friction, device is joined in marriage to vacuum adsorption volume to volume friction includes: the unwinding roller is used for unwinding the flexible film material; the film winding mechanism is used for winding and winding the film; the steel roller is of a hollow structure and comprises a vacuum effective area and a hollow part, and the hollow part is communicated with an external vacuumizing device; the friction roller is driven by an external motor to rotate, and the friction cloth is coated outside the friction roller; the film winding mechanism is used for peeling a protective film positioned outside the flexible film material after the flexible film material is unwound by the film winding mechanism, and then the vacuum effective area of the steel roller adsorbs the flexible film material and the friction roller performs friction alignment. The utility model discloses a vacuum adsorption volume to volume friction is joined in marriage to device is rational in infrastructure, compact, improves the production efficiency that volume to volume friction was joined in marriage greatly.
Description
Technical Field
The utility model relates to a technical field is used to the liquid crystal, in particular to vacuum adsorption volume to volume friction is joined in marriage to device.
Background
A liquid crystal display device includes a pair of upper and lower substrates each having electrodes on an inner surface thereof and a dielectric anisotropic liquid crystal layer interposed between the upper and lower substrates, and in short, in the liquid crystal display device, the intensity of an electric field generated by the electrodes is changed by changing a voltage difference between the electrodes, thereby changing the transmittance of polarized light passing through the liquid crystal display device, and a desired image is obtained by controlling the voltage difference between the electrodes.
With the development of the industry, at present, flexible displays are in a high-speed development period, can be folded or rolled up so as to be convenient for display application of different scenes, and the development of flexible liquid crystal displays has great influence on substrate materials, manufacturing processes and the like. For a traditional glass substrate, a rubbing process needs to be performed after an alignment layer is formed on the glass substrate, for a non-flexible glass substrate, a more perfect rubbing process has been realized by matching a rubbing roller and a transmission system, and correspondingly, a machine table used in the process is also more perfect, the technology is more mature, but for a flexible device, a Roll-to-Roll (Roll-to-Roll) process is generally needed if large-scale production is to be realized, and higher requirements are provided for the process of the rubbing process and the adopted machine table in the Roll-to-Roll process.
Disclosure of Invention
The utility model aims to provide a compact structure, the high vacuum adsorption volume to volume friction is joined in marriage to the above technical problem that exists among the prior art to the device.
The utility model adopts the following technical scheme:
a vacuum adsorption roll-to-roll rubbing alignment device, comprising: unreel the roller, receive membrane mechanism, steel roller and friction roller, wherein, the steel roller is hollow structure, including vacuum active area and hollow portion, hollow portion and outside evacuating device intercommunication, the outside cladding friction cloth of friction roller drives by external motor and rotates, the friction roller with the vacuum active area closes on, and flexible membrane material passes through earlier unreels the roller and unreels the back, by it is located to receive membrane mechanism the outside protection film of flexible membrane material is peeled off, later by the steel roller the vacuum active area adsorb and by the friction roller rubs and joins in marriage.
Preferably, the vacuum adsorption roll-to-roll friction alignment device further comprises a winding roll and a film coating mechanism, and the rubbed flexible film material is wound by the winding roll after being covered and attached by a protective film of the film coating mechanism.
Preferably, the unwinding roller and the winding roller are driven by magnetic powder clutches.
Preferably, the film winding device further comprises a first guide roller wheel positioned between the unwinding roller and the film winding mechanism and a second guide roller wheel positioned between the winding roller and the film coating mechanism.
Preferably, the device further comprises a position adjusting device connected with the friction roller, and the distance between the friction roller and the steel roller is adjusted.
Preferably, the vacuum active area of the steel roll comprises a plurality of holes communicating with the hollow portion.
Preferably, the film collecting mechanism further comprises a static eliminating device positioned between the film collecting mechanism and the vacuum effective area.
Preferably, the static eliminating device is a ray static eliminating machine.
Preferably, the dust removing device is positioned at the adjacent position of the friction roller and the steel roller and positioned at the discharging side.
Preferably, the dust removing device is an industrial dust collector.
The utility model discloses a vacuum adsorption volume to volume friction is joined in marriage to device is rational in infrastructure, compact, improves the production efficiency that volume to volume friction was joined in marriage greatly.
Drawings
The invention may be better understood by referring to the illustrations of embodiments of the invention in which:
fig. 1 is a schematic view of the overall structure of a vacuum adsorption roll-to-roll rubbing alignment apparatus according to a first embodiment of the present invention;
fig. 2 is a schematic view of the overall structure of a vacuum adsorption roll-to-roll rubbing alignment apparatus according to a second embodiment of the present invention;
fig. 3 is a schematic structural view of a magnetic powder clutch adopted by an unwinding roller and a winding roller in a vacuum adsorption roll-to-roll friction alignment device according to a second embodiment of the present invention.
Detailed Description
In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, it will be apparent to those skilled in the art that the present invention may be practiced without these specific details. The illustrated example embodiments of the present invention are provided for illustration only and not to limit the invention. Therefore, the scope of the present invention is not limited by the above-described embodiments, but is only limited by the scope of the appended claims.
The vacuum adsorption roll-to-roll friction alignment device according to the embodiment of the present invention will be described in detail with reference to the accompanying drawings.
The first embodiment:
fig. 1 is a schematic view of the overall structure of a vacuum-adsorption roll-to-roll rubbing device according to a first embodiment of the present invention, as shown in fig. 1, the vacuum-adsorption roll-to-roll rubbing device of this embodiment includes: the unwinding roller 30 is used for unwinding the flexible film material; a film take-up mechanism 50 for taking up the film; the steel roller 10 is of a hollow structure, the steel roller 10 comprises a vacuum effective area 13 and a hollow part 11, and the hollow part 11 is communicated with an external vacuumizing device; a friction roller 20, the friction roller 20 is positioned above the steel roller 10 and is driven by an external motor to rotate, and a friction cloth (not shown) is coated outside the friction roller 20; the film-winding/unwinding roller 30 is located on the left side (i.e., the side on which the material is fed) of the steel roll 10. Receive membrane mechanism 50, receive membrane mechanism 50 and be located between unreeling roller 30 and steel rod 10, the vacuum active area 13 of friction roller 20 and steel rod 10 is close to, flexible membrane material unreels the back through unreeling roller 30 earlier, peel off the protection film that is located the flexible membrane material outside by receiving membrane mechanism 50, later adsorb and rub by friction roller 20 by the vacuum active area 13 of steel roller 10 and join in marriage, flexible membrane material friction is joined in marriage the back, draw the back from steel roller 10, directly get into next process and carry out the production and use, for example, directly carry out follow-up instillation or other box-forming processes with the flexible membrane material after rubbing the orientation, no longer give unnecessary details.
In this embodiment, the vacuum effective area 13 of the steel roller 10 includes a plurality of holes (not shown) communicating with the hollow portion 11, the plurality of holes may be uniformly or non-uniformly arranged, the shape of the holes may be, for example, circular, square, diamond, regular hexagon, and other various figures, and the size of the holes is adjustable according to the specific material, thickness, and the like of the flexible film. Preferably, the steel roll 10 further comprises an outermost outer ring 12, the holes being located on the outer ring 12. In this embodiment, preferably, an inner ring (not shown) is further included between the outer ring 12 and the hollow portion 11, a magnetic powder layer (or called as a magnetic fluid layer) is disposed between the inner ring and the outer ring 12, and the magnetic powder layer is concentrated by controlling convergence of the magnetic powder layer to block a gap channel to achieve a sealing purpose. When the vacuum adsorption roll-to-roll friction alignment device works, the vacuum effective area 13 and the hollow part 11 are communicated with an external vacuumizing device, the internal pressure is lower than the external atmospheric pressure, the flexible membrane covers the hole of the outer ring 12 above the vacuum effective area 13, the internal pressure of the vacuum effective area 13 is lower than the external atmospheric pressure, the flexible membrane is tightly attached to the upper side of the vacuum effective area 13 of the steel roller 10 by utilizing the pressure difference between the external atmospheric pressure and the internal pressure of the vacuum effective area 13, so that the flexible membrane is fixed, meanwhile, the friction alignment process step is carried out, along with the rotation of the steel roller 10, after the friction alignment is completed, the flexible membrane at the position is rotated out of the vacuum effective area 13 along with the steel roller 10, at the moment, the two sides of the flexible membrane are both the environmental atmospheric pressure, and at the moment, the flexible membrane can be separated from the.
In the present embodiment, as shown in fig. 1, it is preferable that a static electricity eliminating device 70 is further included between the film collecting mechanism 50 and the vacuum effective area 13, and after the flexible film material is drawn out from the unwinding roller 30, the protective film on the surface is peeled, wound and collected by the film collecting mechanism 50, and then the flexible film material with the protective film peeled is subjected to a static electricity eliminating step by a static electricity eliminating device 70 before entering the vacuum effective area 13 to eliminate the static electricity of the flexible film material itself, preferably, the static electricity eliminating device 70 is a ray static electricity eliminating machine, further, for example, a photoionization static electricity eliminator is adopted, it emits soft X-ray, and the photoionization static eliminator eliminates static electricity by using soft X-ray without the harm of electromagnetic noise generated by corona discharge of discharge electrodes, meanwhile, static electricity can be instantly removed from high-speed moving objects or powdery products, and the static electricity removing effect is good and fast.
In this embodiment, as shown in fig. 1, it is preferable that a dust removing device 80 is further included, which is located adjacent to the friction roller 20 and the steel roller 10 and is located on the discharging side. After the flexible film material is wrapped on the rubbing cloth of the rubbing roller 20 for rubbing and matching, a large amount of tiny particles (the particles comprise fragments removed after the rubbing of the matching layer and fragments generated by the rubbing cloth) can appear on the surface, the dust removal device 80 is positioned at the position near the contact of the rubbing roller 20 and the steel roller and is positioned at the discharge side (namely, one side of the winding roller), and the dust removal operation can be timely carried out on the flexible film material after the flexible film material is rubbed and matched. Preferably, the dust removing device 80 is an industrial vacuum cleaner, but is not limited thereto, and other dust removing devices or cleaning devices may be adopted, and the flexible film material after friction alignment is not damaged, which will not be described in detail.
As shown in fig. 1, a first guide roller 51 is preferably further included between the unwinding roller 30 and the film winding mechanism 50. After the flexible film material is drawn out from the unwinding roller 30, the protective film on the surface is peeled off, and the protective film is wound by the film winding mechanism 50 after passing through the first guide roller 51, preferably, the first guide roller 51 is two driven wheels with the flexible film material clamped at both sides, and the gap thereof can be adjusted as required.
In this embodiment, a position adjusting device 90 connected to the friction roller 20 is further included, and the position adjusting device 90 adjusts the distance and/or angle between the friction roller 20 and the steel roller 10. The position adjusting device 90 can adjust the distance and/or angle between the rubbing roll 20 and the steel roll 10 according to the thickness of the flexible film, the parameter requirement of rubbing alignment, etc., so that the process parameters are optimal and the alignment effect is best.
Second embodiment:
fig. 2 is the utility model discloses the overall structure schematic diagram of the vacuum adsorption roll-to-roll friction alignment device of second embodiment, as shown in fig. 2, the vacuum adsorption roll-to-roll friction alignment device of this embodiment still includes wind-up roll 40 and tectorial membrane mechanism 60, and flexible membrane material after the friction carries out the cover laminating back of protection film through tectorial membrane mechanism 60 again, carries out the rolling by wind-up roll 40. Preferably, the flexible film material after friction alignment can be covered with an electrostatic film or other non-adhesive protective film, and then rolled and stored for subsequent transportation or standby. When the flexible membrane material after the subsequent rubbing orientation is processed and used, the electrostatic film or other non-adhesive protective films need to be removed, and the flexible membrane material is subjected to subsequent liquid crystal instillation or other box forming processes, so that the details are not repeated.
Specifically, as shown in fig. 2, the vacuum adsorption roll-to-roll rubbing alignment apparatus of the present embodiment includes: the unwinding roller 30 is used for unwinding the flexible film material; a film take-up mechanism 50 for taking up the film; the steel roller 10 is of a hollow structure, the steel roller 10 comprises a vacuum effective area 13 and a hollow part 11, and the hollow part 11 is communicated with an external vacuumizing device; a friction roller 20, the friction roller 20 is positioned above the steel roller 10 and is driven by an external motor to rotate, and the friction roller 20 is coated with friction cloth (not shown); a wind-up roll 40 for winding up the film; the unwinding roller 30 and the winding roller 40 are respectively positioned at the left side and the right side of the steel bar 10. The film winding mechanism 50 is positioned between the unwinding roller 30 and the steel roller 10, and the film coating mechanism 60 is positioned between the steel roller 10 and the winding roller 40; the friction roller 20 is close to the vacuum effective area 13 of the steel roller 10, the flexible film is firstly unreeled through the unreeling roller 30, the protective film outside the flexible film is peeled by the film reeling mechanism 50, then the vacuum effective area 13 of the steel roller 10 is adsorbed, the friction alignment is carried out through the friction roller 20, the covering and the attaching of the protective film are carried out through the film covering mechanism 60, and then the winding is carried out through the film reeling mechanism 50.
In this embodiment, the vacuum effective area 13 of the steel roller 10 includes a plurality of holes (not shown) communicating with the hollow portion 11, the plurality of holes may be uniformly or non-uniformly arranged, the shape of the holes may be, for example, circular, square, diamond, regular hexagon, and other various figures, and the size of the holes is adjustable according to the specific material, thickness, and the like of the flexible film. Preferably, the steel roll 10 further comprises an outermost outer ring 12, the holes being located on the outer ring 12. In this embodiment, preferably, an inner ring (not shown) is further included between the outer ring 12 and the hollow portion 11, a magnetic powder layer (or called as a magnetic fluid layer) is disposed between the inner ring and the outer ring 12, and the magnetic powder layer is concentrated by controlling convergence of the magnetic powder layer to block a gap channel to achieve a sealing purpose. When the vacuum adsorption roll-to-roll friction alignment device works, the vacuum effective area 13 and the hollow part 11 are communicated with an external vacuumizing device, the internal pressure is lower than the external atmospheric pressure, the flexible membrane covers the hole of the outer ring 12 above the vacuum effective area 13, the internal pressure of the vacuum effective area 13 is lower than the external atmospheric pressure, the flexible membrane is tightly attached to the upper side of the vacuum effective area 13 of the steel roller 10 by utilizing the pressure difference between the external atmospheric pressure and the internal pressure of the vacuum effective area 13, so that the flexible membrane is fixed, meanwhile, the friction alignment process step is carried out, along with the rotation of the steel roller 10, after the friction alignment is completed, the flexible membrane at the position is rotated out of the vacuum effective area 13 along with the steel roller 10, at the moment, the two sides of the flexible membrane are both the environmental atmospheric pressure, and at the moment, the flexible membrane can be separated from the.
In this embodiment, the unwinding roller 30 and the winding roller 40 are both driven by magnetic powder clutches. Fig. 3 is the utility model discloses the magnetic powder clutch that unreels roller 30 and wind-up roll 40 adopted in the vacuum adsorption volume to volume friction alignment device of second embodiment's structural schematic diagram, as shown in fig. 3, magnetic powder clutch is including being located the electrical coil 201 of outer lane and being located the magnet 202 of inner circle, adjusts the speed and the dynamics of unreeling and rolling through the electric current size of control electrical coil 201.
In the present embodiment, as shown in fig. 2, it is preferable that a static electricity eliminating device 70 is further included between the film collecting mechanism 50 and the vacuum effective area 13, and after the flexible film material is drawn out from the unwinding roller 30, the protective film on the surface is peeled, wound and collected by the film collecting mechanism 50, and then the flexible film material with the protective film peeled is subjected to a static electricity eliminating step by a static electricity eliminating device 70 before entering the vacuum effective area 13 to eliminate the static electricity of the flexible film material itself, preferably, the static electricity eliminating device 70 is a ray static electricity eliminating machine, further, for example, a photoionization static electricity eliminator is adopted, it emits soft X-ray, and the photoionization static eliminator eliminates static electricity by using soft X-ray without the harm of electromagnetic noise generated by corona discharge of discharge electrodes, meanwhile, static electricity can be instantly removed from high-speed moving objects or powdery products, and the static electricity removing effect is good and fast.
In this embodiment, as shown in fig. 2, it is preferable that a dust removing device 80 is further included, which is located adjacent to the friction roller 20 and the steel roller 10 and is located on the discharging side. After the flexible film material is wrapped on the rubbing cloth of the rubbing roller 20 for rubbing and matching, a large amount of tiny particles (the particles comprise fragments removed after the rubbing of the matching layer and fragments generated by the rubbing cloth) can appear on the surface, the dust removal device 80 is positioned at the position near the contact of the rubbing roller 20 and the steel roller and is positioned at the discharge side (namely, one side of the winding roller), and the dust removal operation can be timely carried out on the flexible film material after the flexible film material is rubbed and matched. Preferably, the dust removing device 80 is an industrial vacuum cleaner, but is not limited thereto, and other dust removing devices may be used, and are not described in detail.
As shown in fig. 2, it is preferable that a first guide roller 51 is further included between the unwinding roller 30 and the film winding mechanism 50, and a second guide roller 61 is further included between the winding roller 40 and the film covering mechanism 60. After the flexible film material is drawn out from the unwinding roller 30, the protective film on the surface is peeled off, and the protective film is wound by the film winding mechanism 50 after passing through the first guide roller 51, preferably, the first guide roller 51 is two driven wheels with the flexible film material clamped at both sides, and the gap thereof can be adjusted as required. After the flexible film material is in friction alignment, after the flexible film material is led out from the steel roller 10, in order to protect the surface after the friction alignment, a protective film needs to be covered with a protective film for winding, after the protective film on the film covering mechanism 60 passes through the second guide roller 61, the protective film is covered on one side of the friction alignment layer of the flexible film material, then the flexible film material covered with the protective film enters the winding roller 40 for winding, preferably, the second guide roller 61 is two driven wheels with the flexible film material clamped on two sides, and the gap between the two driven wheels can be adjusted as required.
In this embodiment, a position adjusting device 90 connected to the friction roller 20 is further included, and the position adjusting device 90 adjusts the distance and/or angle between the friction roller 20 and the steel roller 10. The position adjusting device 90 can adjust the distance and/or angle between the rubbing roll 20 and the steel roll 10 according to the thickness of the flexible film, the parameter requirement of rubbing alignment, etc., so that the process parameters are optimal and the alignment effect is best.
The utility model discloses a friction of vacuum adsorption volume to volume friction is joined in marriage to device not only can realize the volume to the flexible substrate of volume and is joined in marriage, improves production efficiency greatly, still has electrostatic elimination and dust removal function simultaneously, and is rational in infrastructure, compact, improves the production efficiency that volume to volume friction was joined in marriage greatly.
The technical principle of the present invention is described above with reference to specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without any inventive effort, which would fall within the scope of the present invention.
Claims (10)
1. A vacuum adsorption roll-to-roll friction alignment device is characterized by comprising: unreel the roller, receive membrane mechanism, steel roller and friction roller, wherein, the steel roller is hollow structure, including vacuum active area and hollow portion, hollow portion and outside evacuating device intercommunication, the outside cladding friction cloth of friction roller drives by external motor and rotates, the friction roller with the vacuum active area closes on, flexible membrane material by unreel the roller, the outside protection film of flexible membrane material by receive membrane mechanism and peel off, peel off behind the protection film flexible membrane material by the steel roller the vacuum active area adsorb and by the friction roller carries out the friction and joins in marriage.
2. The vacuum adsorption roll-to-roll rubbing and aligning device according to claim 1, further comprising a wind-up roll and a film covering mechanism, wherein the rubbed flexible film material is covered and attached with a protective film by the film covering mechanism, and then is wound by the wind-up roll.
3. The vacuum suction roll-to-roll friction alignment device according to claim 2, wherein the unwinding roll and the winding roll are both driven by magnetic powder clutches.
4. The vacuum suction roll-to-roll friction alignment device according to claim 2, further comprising a first guide roller between the unwinding roll and the film winding mechanism and a second guide roller between the winding roll and the film covering mechanism.
5. The vacuum suction roll-to-roll rubbing alignment apparatus according to claim 1, further comprising a position adjusting device connected to the rubbing roller to adjust a distance between the rubbing roller and the steel roller.
6. The vacuum suction roll-to-roll rubbing alignment apparatus according to claim 1, wherein the vacuum effective area of the steel roll comprises a plurality of holes communicating with the hollow portion.
7. The vacuum suction roll-to-roll rubbing alignment apparatus of claim 1, further comprising a static elimination device between the film collecting mechanism and the vacuum active area.
8. The vacuum adsorption roll-to-roll rubbing alignment apparatus according to claim 7, wherein the static elimination apparatus is a ray static elimination machine.
9. The vacuum suction roll-to-roll rubbing alignment device according to claim 1, further comprising a dust removing device located adjacent to the rubbing roll and the steel roll and at a discharge side.
10. The vacuum suction roll-to-roll rubbing alignment apparatus according to claim 9, wherein the dust removing apparatus is an industrial vacuum cleaner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021669076.0U CN213182260U (en) | 2020-08-12 | 2020-08-12 | Vacuum adsorption roll-to-roll friction alignment device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021669076.0U CN213182260U (en) | 2020-08-12 | 2020-08-12 | Vacuum adsorption roll-to-roll friction alignment device |
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| CN213182260U true CN213182260U (en) | 2021-05-11 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114171709A (en) * | 2021-12-07 | 2022-03-11 | 深圳市华星光电半导体显示技术有限公司 | Preparation method of flexible display panel and equipment for preparing display panel |
-
2020
- 2020-08-12 CN CN202021669076.0U patent/CN213182260U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114171709A (en) * | 2021-12-07 | 2022-03-11 | 深圳市华星光电半导体显示技术有限公司 | Preparation method of flexible display panel and equipment for preparing display panel |
| CN114171709B (en) * | 2021-12-07 | 2023-10-17 | 深圳市华星光电半导体显示技术有限公司 | Method and apparatus for manufacturing flexible display panel |
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