CN215219224U - Light guide plate reflection edge covering device - Google Patents
Light guide plate reflection edge covering device Download PDFInfo
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- CN215219224U CN215219224U CN202121350861.4U CN202121350861U CN215219224U CN 215219224 U CN215219224 U CN 215219224U CN 202121350861 U CN202121350861 U CN 202121350861U CN 215219224 U CN215219224 U CN 215219224U
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Abstract
The utility model discloses a light guide plate reflection edge covering device, which comprises a supporting component and a pressing component, wherein the supporting component is used for supporting a reflector plate, and the pressing component comprises a pressing plate and a pressing roller; the pressing plate is used for adsorbing the light guide plate and pressing the light guide plate on the upper surface of the reflection sheet, the edge of the reflection sheet is provided with a double-sided adhesive tape, under the condition of pressing, the front surface of the light guide plate is contacted with the reflection sheet, the side edge of the light guide plate is contacted with the edge of the reflection sheet through the double-sided adhesive tape, a roller of the pressing roller is completely contacted with the edge of the reflection sheet, and the pressing roller is used for rolling and pressing the reflection sheet on the side edge of the light guide plate; the roller groove and the guide groove are formed in the positioning column of the supporting assembly, the pressing roller is installed in the roller groove, the rotating shaft of the pressing roller is installed in the guide groove, the guide groove is parallel to the edge of the light guide plate, the pressing roller rolls along the side edge of the light guide plate to be pressed, seamless adhesion of the edge-covered partial reflecting sheet and the side edge of the light guide plate is guaranteed, and edge-covering quality and effect are improved.
Description
Technical Field
The utility model belongs to the technical field of backlight display technique and specifically relates to a device of borduring is reflected in light guide plate is related to.
Background
At present, existing display devices are basically passive display devices, a backlight source is needed to visualize display contents, and in order to reduce backlight loss, a reflective sheet is disposed on the bottom surface of a light guide plate. There is light leakage at the side of the reflecting sheet and the light guide plate, in order to prevent side exposure, the side of the light guide plate is covered with the reflecting sheet, at present, there are two methods of edge covering, wherein one is that the reflecting sheet of the edge covering part is separated from the reflecting sheet of the bottom surface, the size of the reflecting sheet for edge covering is matched with that of the side of the light guide plate, and the other is that the reflecting sheet of the edge covering part is integrated with the reflecting sheet of the bottom surface, and the edge covering part is connected with the reflecting sheet of the bottom surface by cutting the seam line and is easy to bend and cover. The traditional operation mode is to use manual edge covering and pasting, but the manual edge covering has the following defects: the light guide plate and the reflector plate cannot be completely aligned when being pasted, so that edge covering is not uniform, and the edge covering effect is influenced; when the light guide plate is adhered to the reflector plate, the light guide plate is hollow and inclined, and the brightness and uniformity are affected; meanwhile, the manual edge covering production efficiency is low, and the cost is high.
Therefore, if the quality and the efficiency of edge covering are improved, the problem to be solved is needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a device of borduring is reflected in light guide plate, the partial reflector plate of borduring is a body structure with the bottom surface reflector plate, places the reflector plate on the first step of backup pad and reference column, presses the clamp plate to press in the backup pad and when compressing elastomeric element, and the even side of wrapping the light guide plate of the partial reflector plate of borduring is pressed along the roll of light guide plate side through pressing the gyro wheel, improves quality and the efficiency of borduring.
The above technical scheme of the utility model can be realized through following technical scheme to the purpose:
a light guide plate reflection edge covering device comprises a supporting assembly and a pressing assembly, wherein the supporting assembly is used for supporting a reflection sheet, and the pressing assembly comprises a pressing plate and a pressing roller; the pressing plate is used for adsorbing the light guide plate and pressing the light guide plate on the upper surface of the reflector plate, the double faced adhesive tape is arranged at the edge of the reflector plate, under the pressing condition, the light guide plate is in contact with the reflector plate in front, the side edge of the light guide plate is in contact with the edge of the reflector plate through the double faced adhesive tape, the roller of the pressing roller is in complete contact with the edge of the reflector plate, and the pressing roller is used for rolling and pressing the reflector plate at the side edge of the light guide plate.
The utility model discloses further set up to: the supporting component comprises a bottom plate, at least two positioning columns, at least one supporting elastic component, a supporting adsorption component and a supporting plate; each positioning column and each supporting elastic part are arranged on the upper surface of the bottom plate, and the supporting plate is positioned between the positioning columns; each supporting elastic component is uniformly arranged between the positioning columns, one end face of each supporting elastic component is arranged on the bottom plate, and the other end face of each supporting elastic component is connected with the lower surface of the supporting plate; the adsorption component is connected with the lower surface of the support plate, and the upper surface of the support plate is used for placing the reflector plate.
The utility model discloses further set up to: evenly be provided with the gas pocket in the backup pad, adsorption element includes first trachea, and first trachea is connected with the backup pad lower surface for ventilate for the gas pocket in the backup pad.
The utility model discloses further set up to: the upper surface of the positioning column comprises a first step and a second step, and the surface of the second step is higher than that of the first step; the first step surface and the upper surface of the supporting plate are located on the same horizontal plane, the first step surface and the upper surface of the supporting plate are used for placing the reflector plate, the width of the first step is larger than or equal to the thickness of the light guide plate, and the double faced adhesive tape is arranged on the edge of the reflector plate located on the first step.
The utility model discloses further set up to: the positioning column is provided with a roller groove and a guide groove, the pressing roller is arranged in the roller groove, the rotating shaft of the pressing roller is arranged in the guide groove, the rotating shaft is perpendicular to the surface of the bottom plate, the distance between the axis of the rotating shaft and one side of the positioning column, which faces the supporting elastic part, is equal to the radius of the pressing roller, and the guide groove is parallel to the edge of the light guide plate.
The utility model discloses further set up to: the distance between the two positioning columns is equal to the sum of the width of the light guide plate plus two times of the thickness of the double-sided adhesive tape plus two times of the thickness of the reflector plate.
The utility model discloses further set up to: the pressing assembly further comprises a pressing adsorption component, the pressing plate is arranged above the supporting plate and is the same as the supporting plate in size, and the pressing adsorption component is arranged on the lower surface of the pressing plate, facing one side of the supporting plate, and is used for adsorbing the light guide plate.
The utility model discloses further set up to: the pressing and adsorbing component comprises a second air pipe and a suction nozzle, the second air pipe is connected with the upper surface of the pressing plate, one side of the suction nozzle is connected with the lower surface of the pressing plate, the other side of the suction nozzle is used for connecting a light guide plate, and gas in the second air pipe is used for determining whether the suction nozzle adsorbs or releases the light guide plate.
The utility model discloses further set up to: the pressing driving component is used for applying pressure to the pressing plate to enable the side edge of the light guide plate to be in surface contact with the pressing roller completely, and the pressing roller is driven to move along the side edge of the light guide plate while the pressing roller is driven to roll.
The utility model discloses further set up to: the pressing roller comprises at least one roller for pressing and adhering the reflecting sheets on the side surfaces of the light guide plate.
Compared with the prior art, the beneficial technical effects of this application do:
1. according to the positioning method, the upper surface of the supporting plate and the surface of the first step of the positioning column are positioned on the same horizontal plane, so that the reflector plate is positioned, the reflector plate is accurately aligned with the light guide plate, and the side edge of the light guide plate is uniformly wrapped by the reflector plate at the edge wrapping part;
2. furthermore, the pressing adsorption assembly is arranged, so that air between the light guide plate and the reflection sheet is absorbed after the light guide plate is contacted with the reflection sheet, and the bonding between the light guide plate and the reflection sheet is ensured;
3. further, the gyro wheel is pressed through setting up in this application, when bordure partial reflector plate and light guide plate side paste together, rolls along the light guide plate side and presses, guarantees to bordure the seamless pasting of partial reflector plate and light guide plate side, improves quality and the effect of borduring.
Drawings
FIG. 1 is a schematic cross-sectional view of a hemming device according to an embodiment of the present application;
fig. 2 is a schematic cross-sectional view of a taping device according to an embodiment of the present application in the presence of a light guide plate;
FIG. 3 is an enlarged partial cross-sectional view of a hemming device according to an embodiment of the present application;
FIG. 4 is a schematic top view of a support assembly according to an embodiment of the present application;
FIG. 5 is a schematic cross-sectional view of a pressed article of an embodiment of the present application.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The application discloses light guide plate reflection device of borduring, this embodiment are used for borduring for three side of light guide plate, and the structure of borduring and the method of three side are the same, and this embodiment only describes to the structure and the method of borduring of a side, and the number of borduring to the light guide plate is less than 3 or is greater than 3, adopts the same structure and method, no longer gives details.
As shown in fig. 1, 2 and 3, fig. 1 is a schematic cross-sectional view of a light guide plate reflection edge covering device, fig. 2 is a schematic cross-sectional view of a light guide plate reflection edge covering device adsorbing a reflection sheet and a light guide plate, and fig. 3 is a partially enlarged schematic view of fig. 2 taken along AA, in which the reflection sheet 4 and a double-sided tape 5 are separated from a support plate 3 for easy observation.
Light guide plate reflection device of borduring includes bottom plate 1, reference column 2, backup pad 3, clamp plate 7, press down gyro wheel 8, elastomeric element 9, first trachea 10, second trachea 11, and the one end of reference column 2, elastomeric element 9's one end are installed respectively on bottom plate 1, and elastomeric element 9's quantity is one at least, and each elastomeric element evenly is located the region that two at least reference columns enclose, and backup pad 3 sets up the other end at elastomeric element 9, and backup pad 3's lower surface is connected with elastomeric element 9's the other end.
One end of the positioning column 2, which is far away from the bottom plate 1, is provided with two steps, namely a first step 21 and a second step 22, the surface of the first step 21 and the upper surface of the supporting plate 3 are located on the same horizontal plane, the surface of the second step 22 is higher than the surface of the first step 21, and the width of the first step 21 is equal to the thickness of the light guide plate 6.
At least one first air hole 31 is uniformly formed on the supporting plate 3, as shown in fig. 4, fig. 4 is a schematic top view of the supporting plate and the positioning column. The lower surface of the support plate 3 is connected to a first air duct 10. The first air tube 10 is communicated with each first air hole.
A gap is formed between the side edge of the supporting plate 3 and the positioning column 2, and the distance between the inner side surface 23 of the positioning column 2 facing the elastic component 9 and the side edge of the supporting plate 3 is larger than or equal to the sum of the thicknesses of the double-sided adhesive tape and the reflecting sheet.
The pressing plate 7 is arranged right above the supporting plate 3, and the size of the pressing plate is the same as that of the supporting plate 3. The pressing plate 7 is also evenly provided with at least one second air hole, and the upper surface of the pressing plate 7 is connected with the second air pipe 11. The second air pipe 11 is communicated with each second air hole.
At least one suction nozzle 12 is uniformly arranged on the lower surface of the pressing plate 7, the other end of the suction nozzle 12 is used for sucking the light guide plate 6, and the suction nozzle 12 is made of plastic materials.
The distance between the two positioning columns is equal to the sum of the width of the light guide plate plus two times of the thickness of the double-sided adhesive tape plus two times of the thickness of the reflector plate.
A roller groove 24 is formed on the outer side surface of the positioning column 2 far away from the elastic component 9, the pressing roller 8 is installed in the roller groove 24, a guide groove 25 is formed in the roller groove 24, a rotating shaft 81 of the pressing roller 8 is movably installed in the guide groove, and the rotating shaft of the pressing roller 8 can move along the guide groove 25.
The guide grooves 25 are parallel to the side edges of the support plate 3, and the rotation axis 81 is perpendicular to the base plate 1.
The distance from the axial center of the rotating shaft 81 to the inner side surface 23 of the positioning column is equal to the radius of the pressing roller 8, and the surface of the pressing roller 8 is flush with the inner side surface of the positioning column 2.
The pressing driving device is connected with the pressing roller 8 and the pressing plate 7 and is used for driving the pressing roller 8 to rotate and move along the guide groove, meanwhile, the pressing plate 7 is pressed on the supporting plate 3, and the elastic component 9 is compressed.
A positioning block is provided below the support plate 3 for positioning the final depressed position of the light guide plate 6. When the supporting plate 3 is pressed downward, the side edge of the light guide plate 4 is completely contacted with the roller edge of the pressing roller 8 when the limited position of the positioning block is reached.
The light guide plate reflection edge covering device has the working process as follows:
the reflective sheet 4 is placed on the surface of the first step 21 and the upper surface of the support plate 3, the lower surface of the reflective sheet 4 is in contact with the surface of the first step 21 and the upper surface of the support plate 3, and the double-sided adhesive tape 5 is arranged on the upper surface corresponding to the reflective sheet in contact with the first step 21.
The air is drawn outward from the first air tube 10, and the reflecting sheet 4 is adsorbed onto the upper surface of the supporting plate 3.
The air is sucked from the second air pipe 11, the suction nozzle 12 sucks the light guide plate 6 under the action of negative pressure, and the mesh point surface 61 of the light guide plate 6 is opposite to the reflector plate.
The pressing drive unit presses the pressing plate 7 from above downward to bring the mesh surface 61 of the light guide plate 6 into contact with the upper surface of the reflection sheet 4, and draws air from the second air duct 11 to the outside, thereby drawing air between the mesh surface 61 and the upper surface of the reflection sheet 4.
Continue to press down clamp plate 7, make clamp plate 7, light guide plate 6, backup pad 3 moves down along medial surface 23 of reference column 2, drive the double faced adhesive tape 5 and the reflector plate border that are located first step 21 department and also move down along medial surface 23, when the upper surface of light guide plate 6 is parallel with the last border of pressing roller 8, stop decurrent pressing, 8 pivoted simultaneous edge guide way 25 removal are pressed in the drive, pressing roller 8 rolls the reflector plate of pressing the light guide plate 6 side, double faced adhesive tape 5 evenly pastes the reflector plate of light guide plate 6 side on the side of deflector plate 6. The results after pressing are shown in fig. 5.
After the pressing is completed, the first air tube 10 and the second air tube 11 are inflated inwards, and the light guide plate 6 with the edges wrapped is taken down.
In another embodiment of the present application, the length of the roller of the pressing roller 8 is greater than the thickness of the light guide plate, the side edge of the light guide plate 6 is completely contacted with the surface of the roller of the pressing roller 8, the pressing roller 8 is driven to rotate and simultaneously moves along the guide groove 25, and the edge covering of the side edge of the light guide plate is completed.
In another embodiment of the present application, a light guide plate reflection edge covering device is provided with a pressing roller for rolling and pressing each side reflective sheet of the light guide plate in sequence.
Or, each side of the light guide plate is respectively provided with a pressing roller, and one pressing roller only performs rolling pressing on the reflecting sheet on one side of the light guide plate, so that the reflecting sheet is uniformly adhered to the side of the light guide plate.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (10)
1. The utility model provides a device of borduring is reflected to light guide plate which characterized in that: the reflecting plate pressing device comprises a supporting assembly and a pressing assembly, wherein the supporting assembly is used for supporting a reflecting plate, and the pressing assembly comprises a pressing plate and a pressing roller; the pressing plate is used for adsorbing the light guide plate and pressing the light guide plate on the upper surface of the reflector plate, the double faced adhesive tape is arranged at the edge of the reflector plate, under the pressing condition, the light guide plate is in contact with the reflector plate in front, the side edge of the light guide plate is in contact with the edge of the reflector plate through the double faced adhesive tape, the roller of the pressing roller is in complete contact with the edge of the reflector plate, and the pressing roller is used for rolling and pressing the reflector plate at the side edge of the light guide plate.
2. A light guide plate reflection hemming device according to claim 1 wherein: the supporting component comprises a bottom plate, at least two positioning columns, at least one supporting elastic component, a supporting adsorption component and a supporting plate; each positioning column and each supporting elastic part are arranged on the upper surface of the bottom plate, and the supporting plate is positioned between the positioning columns; each supporting elastic component is uniformly arranged between the positioning columns, one end face of each supporting elastic component is arranged on the bottom plate, and the other end face of each supporting elastic component is connected with the lower surface of the supporting plate; the adsorption component is connected with the lower surface of the support plate, and the upper surface of the support plate is used for placing the reflector plate.
3. A light guide plate reflection hemming device according to claim 2 wherein: evenly be provided with the gas pocket in the backup pad, adsorption element includes first trachea, and first trachea is connected with the backup pad lower surface for ventilate for the gas pocket in the backup pad.
4. A light guide plate reflection hemming device according to claim 2 wherein: the upper surface of the positioning column comprises a first step and a second step, and the surface of the second step is higher than that of the first step; the first step surface and the upper surface of the supporting plate are located on the same horizontal plane, the first step surface and the upper surface of the supporting plate are used for placing the reflector plate, the width of the first step is larger than or equal to the thickness of the light guide plate, and the double faced adhesive tape is arranged on the edge of the reflector plate located on the first step.
5. A light guide plate reflection hemming device according to claim 2 wherein: the positioning column is provided with a roller groove and a guide groove, the pressing roller is arranged in the roller groove, the rotating shaft of the pressing roller is arranged in the guide groove, the rotating shaft is perpendicular to the surface of the bottom plate, the distance between the axis of the rotating shaft and one side of the positioning column, which faces the supporting elastic part, is equal to the radius of the pressing roller, and the guide groove is parallel to the edge of the light guide plate.
6. A light guide plate reflection hemming device according to claim 2 wherein: the distance between the two positioning columns is equal to the sum of the width of the light guide plate plus two times of the thickness of the double-sided adhesive tape plus two times of the thickness of the reflector plate.
7. A light guide plate reflection hemming device according to claim 1 wherein: the pressing assembly further comprises a pressing adsorption component, the pressing plate is arranged above the supporting plate and is the same as the supporting plate in size, and the pressing adsorption component is arranged on the lower surface of the pressing plate, facing one side of the supporting plate, and is used for adsorbing the light guide plate.
8. The light guide plate reflection hemming device of claim 7 wherein: the pressing and adsorbing component comprises a second air pipe and a suction nozzle, the second air pipe is connected with the upper surface of the pressing plate, one side of the suction nozzle is connected with the lower surface of the pressing plate, the other side of the suction nozzle is used for connecting a light guide plate, and gas in the second air pipe is used for determining whether the suction nozzle adsorbs or releases the light guide plate.
9. A light guide plate reflection hemming device according to claim 1 wherein: the pressing driving component is used for applying pressure to the pressing plate to enable the side edge of the light guide plate to be in surface contact with the pressing roller completely, and the pressing roller is driven to move along the side edge of the light guide plate while the pressing roller is driven to roll.
10. A light guide plate reflection hemming device according to claim 1 wherein: the pressing roller comprises at least one roller for pressing and adhering the reflecting sheets on the side surfaces of the light guide plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121350861.4U CN215219224U (en) | 2021-06-17 | 2021-06-17 | Light guide plate reflection edge covering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121350861.4U CN215219224U (en) | 2021-06-17 | 2021-06-17 | Light guide plate reflection edge covering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215219224U true CN215219224U (en) | 2021-12-17 |
Family
ID=79426190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121350861.4U Active CN215219224U (en) | 2021-06-17 | 2021-06-17 | Light guide plate reflection edge covering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215219224U (en) |
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2021
- 2021-06-17 CN CN202121350861.4U patent/CN215219224U/en active Active
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