CN212207143U - Optical automatic detection device for light guide plate - Google Patents
Optical automatic detection device for light guide plate Download PDFInfo
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- CN212207143U CN212207143U CN202020613517.9U CN202020613517U CN212207143U CN 212207143 U CN212207143 U CN 212207143U CN 202020613517 U CN202020613517 U CN 202020613517U CN 212207143 U CN212207143 U CN 212207143U
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Abstract
The utility model discloses an optical automatic detection device of a light guide plate, which comprises a transmission mechanism, wherein the transmission mechanism sequentially comprises an upper blanking section, an electrostatic dust removal section, a CCD detection section and a return reverse section; the electrostatic dust collection section is provided with an electrostatic dust collection device, the CCD detection section is provided with a CCD detection device, and the return reverse section is provided with a reversing device; the conveying mechanism comprises a conveying side and a return side, and the conveying side and the return side are symmetrically arranged; the conveying side and the return side are both provided with an upper row of conveying rollers and a lower row of conveying rollers, and a positioning interval for positioning the light guide plate is formed between the upper row of conveying rollers and the lower row of conveying rollers; borrow this, its automated inspection that has realized the light guide plate has improved degree of automation to improve work efficiency, simultaneously, realized the electrostatic dust removal, thereby avoided having guaranteed the precision that detects because of there being the dust on the light guide plate and producing the phenomenon that influences light guide plate testing result, and go up unloading and lie in same one side, reduced staff's labour.
Description
Technical Field
The utility model belongs to the technical field of the light guide plate technique and specifically relates to indicate a light guide plate optics automatic checkout device.
Background
The light guide plate is made of optical acrylic/PC (polycarbonate) plates, then high-tech materials with high refractive index and no light absorption are used for printing light guide points on the bottom surface of the optical acrylic plate by using laser engraving, V-shaped cross grid engraving and UV (ultraviolet) screen printing technology, the optical acrylic plate is used for absorbing the light emitted from a lamp to stay on the surface of the optical acrylic plate, when the light reaches each light guide point, the reflected light can be diffused to each angle, and then the reflection condition is damaged to be emitted from the front surface of the light guide plate. The light guide plate can uniformly emit light through various light guide points with different densities and sizes. The reflecting sheet is used for reflecting the light exposed from the bottom surface back to the light guide plate to improve the light use efficiency, and has high light emitting efficiency and low power consumption under the condition of the same area light emitting brightness. The single-sided microstructure array light guide plate is generally manufactured by an extrusion molding process. It is mainly used for converting the light emitted from the back of the liquid crystal display screen of flat TV into surface light source and making the light be uniformly emitted.
The light guide plate is used as a main component of a flat-panel television, and the surface of the light guide plate is inevitably provided with defects or flaws due to factors such as process, material, transportation and the like in the production process, so that before the light guide plate is put into use, the surface defects of the light guide plate need to be strictly inspected, such as surface scratches, dust, foreign matters, spot abnormity and the like; at present, the work is mainly finished manually, manual visual detection has a plurality of uncertainties and poor detection precision, so that the quality of a product cannot be guaranteed, and the existing light guide plate is not subjected to targeted dust removal treatment before detection, so that dust is easy to influence the detection result of the light guide plate.
Therefore, a new technology needs to be developed to solve the above problems.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model discloses to the disappearance that prior art exists, its main objective provides a light guide plate optics automatic checkout device, and it has realized the automated inspection of light guide plate, has improved degree of automation to improve work efficiency, simultaneously, realized the electrostatic dust removal, thereby avoided having guaranteed the precision that detects because of there being the phenomenon that the dust produced the influence to the light guide plate testing result on the light guide plate, and go up unloading and lie in same one side, reduced staff's labour.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
an optical automatic detection device for a light guide plate comprises a conveying mechanism for conveying the light guide plate, wherein the conveying mechanism sequentially comprises an upper feeding section, a lower feeding section, an electrostatic dust removal section for removing dust on the surface of the light guide plate, a CCD detection section for performing continuous scanning imaging and detection analysis on the light guide plate, and a return reverse section for switching the conveying direction of the light guide plate;
the feeding and discharging section is provided with a feeding and discharging area, the electrostatic dust removal section is provided with an electrostatic dust removal device, the CCD detection section is provided with a CCD detection device, and the return reverse section is provided with a reversing device; the conveying mechanism comprises a conveying side and a return side, the conveying side and the return side are symmetrically arranged, and the electrostatic dust collection device, the CCD detection device and the reversing device are all arranged on one side of the conveying mechanism;
the conveying side and the return side are both provided with an upper row of conveying rollers and a lower row of conveying rollers, and a positioning interval for positioning the light guide plate is formed between the upper row of conveying rollers and the lower row of conveying rollers.
As a preferable scheme, one side surface of the upper row of conveying rollers is a positioning surface for positioning the guide rail plate, the positioning surface is used for contacting a non-light-guide region on the side surface of the light guide plate, the lower row of conveying rollers is provided with a positioning groove for positioning the light guide plate, the positioning groove is used for contacting a non-light-incident surface of the light guide plate, and both the positioning surface and the positioning groove are positioned in the positioning section.
As a preferred scheme, the device further comprises a control device, and the control device is respectively and electrically connected to the electrostatic dust removal device, the CCD detection device and the reversing device.
As a preferable scheme, the lower row of conveying rollers is connected with a driving mechanism, and the driving mechanism is electrically connected to the control device.
Preferably, the driving mechanism is a driving motor.
As a preferable scheme, the upper row of conveying rollers are guide rollers, and the lower row of conveying rollers are driving rollers.
As a preferred scheme, the electrostatic dust removal device comprises an electrostatic dust removal unit and an electrostatic dust removal driving unit for driving the electrostatic dust removal unit, and the electrostatic dust removal driving unit is electrically connected to the control device.
As a preferred scheme, the CCD detection device includes a CCD camera and a dedicated light source for detecting the light guide plate, and both the CCD camera and the dedicated light source are electrically connected to the control device.
As a preferred scheme, the reversing device comprises a reversing manipulator and a reversing driving unit for driving the reversing manipulator, and the reversing driving unit is electrically connected to the control device.
Compared with the prior art, the utility model obvious advantage and beneficial effect have, particularly, can know by above-mentioned technical scheme, it is mainly through transport mechanism, electrostatic precipitator device, CCD detection device, the combination design of switching-over device, make it realize the automated inspection of light guide plate, the degree of automation has been improved, thereby work efficiency is improved, and simultaneously, electrostatic precipitation has been realized, thereby the phenomenon of influence is produced to the light guide plate testing result because of there being the dust on the light guide plate has been avoided, the precision of detection has been guaranteed, and, go up unloading and be located same one side, staff's labour has been reduced.
To more clearly illustrate the structural features and technical means of the present invention and the specific objects and functions achieved thereby, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Drawings
FIG. 1 is a general structural elevation view of an embodiment of the present invention;
FIG. 2 is a side view of the general structure of an embodiment of the present invention;
fig. 3 is a control schematic block diagram of an embodiment of the present invention.
The attached drawings indicate the following:
10. conveying mechanism 11, upper row conveying roller
111. Positioning surface 12, lower row of conveying rollers
121. Positioning groove 13, conveying side
14. Return side 15, positioning section
20. Feeding and discharging area 30 and electrostatic dust removal device
40. CCD detection device 50 and reversing device
60. Control device 70 and drive mechanism
80. A light guide plate.
Detailed Description
Fig. 1 to fig. 3 show specific structures of embodiments of the present invention.
An optical automatic detection device for a light guide plate comprises a conveying mechanism 10 used for conveying the light guide plate 80, wherein the conveying mechanism 10 sequentially comprises an upper feeding section, a lower feeding section, an electrostatic dust removal section used for removing dust on the surface of the light guide plate 80, a CCD detection section used for carrying out continuous scanning imaging and detection analysis on the light guide plate 80, and a return reverse section used for switching the conveying direction of the light guide plate 80; the feeding and discharging section is provided with a feeding and discharging area 20, the electrostatic dust removal section is provided with an electrostatic dust removal device 30, the CCD detection section is provided with a CCD detection device 40, and the return reverse section is provided with a reversing device 50; the conveying mechanism 10 comprises a conveying side 13 and a return side 14, the conveying side 13 and the return side 14 are symmetrically arranged, and the electrostatic dust removal device 30, the CCD detection device 40 and the reversing device 50 are all arranged on one side of the conveying side 13 of the conveying mechanism 10; the conveying side 13 and the return side 14 are provided with an upper row of conveying rollers 11 and a lower row of conveying rollers 12, and a positioning section 15 configured to position the light guide plate 80 is defined between the upper row of conveying rollers 11 and the lower row of conveying rollers 12. Borrow this, through transport mechanism 10, electrostatic precipitator device 30, CCD detection device 40, reversing arrangement 50's combination design, make it realize the automated inspection of light guide plate, improved degree of automation, thereby work efficiency has been improved, and simultaneously, electrostatic precipitation has been realized, thereby avoided having the phenomenon that the dust produced the influence to the light guide plate testing result because of there being on the light guide plate, guaranteed the precision that detects, and, go up unloading and be located same one side, staff's labour has been reduced.
One side surface of the upper row of conveying rollers 11 is a positioning surface 111 for positioning the guide rail plate, the positioning surface 111 is used for contacting a non-light-guide region on the side surface of the light guide plate 80, the lower row of conveying rollers 12 is provided with a positioning groove 121 for positioning the light guide plate 80, the positioning groove 121 is used for contacting a non-light-incident surface of the light guide plate 80, and both the positioning surface 111 and the positioning groove 121 are located in the positioning region 15. Thus, through the combination design of the positioning surface 111 and the positioning groove 121, the vertical positioning of the light guide plate is realized, and the inconvenience brought to detection due to the contact of the positioning structure to the light incident surface and the light guide area of the light guide plate is avoided. In addition, in the embodiment, after the light guide plate 80 is positioned in the positioning area by the positioning surface 111 and the positioning groove 121, the light guide plate 80 stands vertically, and the angle between the light guide plate 80 and the horizontal plane is preferably 80 °.
The light guide plate optical automatic detection device further comprises a control device 60, wherein the control device 60 is electrically connected to the electrostatic dust removal device 30, the CCD detection device 40 and the reversing device 50 respectively.
Wherein, the lower row of conveying rollers 12 is connected with a driving mechanism 70, and the driving mechanism 70 is electrically connected to the control device 60; the drive mechanism 70 is preferably a drive motor. In addition, in the present embodiment, the upper row of the conveying rollers 11 is a guide roller, and the lower row of the conveying rollers 12 is a driving roller.
The electrostatic dust removal device 30 includes an electrostatic dust removal unit and an electrostatic dust removal driving unit for driving the electrostatic dust removal unit, and the electrostatic dust removal driving unit is electrically connected to the control device 60. Therefore, through the design of the electrostatic dust removal device 30, dust on the surface of the light guide plate can be removed before detection, the phenomenon that the detection result of the light guide plate is affected by the dust on the light guide plate is avoided, and the detection precision is ensured.
The CCD detection device 40 includes a CCD camera and a dedicated light source for detecting the light guide plate 80, and both the CCD camera and the dedicated light source are electrically connected to the control device 60. Here, the CCD camera can perform continuous scanning imaging on the light guide plate 80 in cooperation with a dedicated light source, perform automatic detection and analysis of various defects, and transmit data to a computer for display.
The reversing device 50 includes a reversing manipulator and a reversing driving unit for driving the reversing manipulator, and the reversing driving unit is electrically connected to the control device 60. Here, the reversing device 50 may have other reversing structures as long as the light guide plate 80 can be switched from the conveying side 13 to the returning side 14, and details thereof are not described herein.
To sum up, the utility model discloses a design focus lies in, and it mainly is through transport mechanism, electrostatic precipitator device, CCD detection device, the combination design of switching-over device, makes it realize the automated inspection of light guide plate, has improved degree of automation to improve work efficiency, simultaneously, realized electrostatic dust removal, thereby avoided having the phenomenon that produces the influence to the light guide plate testing result because of there being the dust on the light guide plate, guaranteed the precision that detects, and, go up unloading and lie in same one side, reduced staff's labour.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any slight modifications, equivalent changes and modifications made by the technical spirit of the present invention to the above embodiments are all within the scope of the technical solution of the present invention.
Claims (9)
1. The utility model provides a light guide plate optics automatic checkout device which characterized in that: the device comprises a conveying mechanism for conveying a light guide plate, wherein the conveying mechanism sequentially comprises an upper feeding section, a lower feeding section, an electrostatic dust removal section for removing dust on the surface of the light guide plate, a CCD detection section for continuously scanning, imaging, detecting and analyzing the light guide plate, and a return reverse section for switching the conveying direction of the light guide plate;
the feeding and discharging section is provided with a feeding and discharging area, the electrostatic dust removal section is provided with an electrostatic dust removal device, the CCD detection section is provided with a CCD detection device, and the return reverse section is provided with a reversing device; the conveying mechanism comprises a conveying side and a return side, the conveying side and the return side are symmetrically arranged, and the electrostatic dust collection device, the CCD detection device and the reversing device are all arranged on one side of the conveying mechanism;
the conveying side and the return side are both provided with an upper row of conveying rollers and a lower row of conveying rollers, and a positioning interval for positioning the light guide plate is formed between the upper row of conveying rollers and the lower row of conveying rollers.
2. The optical automatic detection device of a light guide plate according to claim 1, wherein: one side surface of the upper row of conveying rollers is a positioning surface for positioning the guide rail plate, the positioning surface is used for contacting a non-light-conducting area on the side surface of the light guide plate, a positioning groove for positioning the light guide plate is arranged on the lower row of conveying rollers, the positioning groove is used for contacting a non-light-incoming surface of the light guide plate, and the positioning surface and the positioning groove are both positioned in a positioning interval.
3. The optical automatic detection device of a light guide plate according to claim 1, wherein: the device further comprises a control device, and the control device is respectively and electrically connected to the electrostatic dust collection device, the CCD detection device and the reversing device.
4. The optical automatic detection device of a light guide plate according to claim 3, wherein: the lower-row conveying roller is connected with a driving mechanism, and the driving mechanism is electrically connected to the control device.
5. The optical automatic detection device of light guide plate according to claim 4, wherein: the driving mechanism is a driving motor.
6. The optical automatic detection device of a light guide plate according to claim 1, wherein: the upper row of conveying rollers are guide rollers, and the lower row of conveying rollers are driving rollers.
7. The optical automatic detection device of a light guide plate according to claim 3, wherein: the electrostatic dust removal device comprises an electrostatic dust removal unit and an electrostatic dust removal driving unit for driving the electrostatic dust removal unit, and the electrostatic dust removal driving unit is electrically connected to the control device.
8. The optical automatic detection device of a light guide plate according to claim 3, wherein: the CCD detection device comprises a CCD camera and a special light source for detecting the light guide plate, and the CCD camera and the special light source are both electrically connected to the control device.
9. The optical automatic detection device of a light guide plate according to claim 3, wherein: the reversing device comprises a reversing mechanical arm and a reversing driving unit for driving the reversing mechanical arm, and the reversing driving unit is electrically connected to the control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020613517.9U CN212207143U (en) | 2020-04-22 | 2020-04-22 | Optical automatic detection device for light guide plate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020613517.9U CN212207143U (en) | 2020-04-22 | 2020-04-22 | Optical automatic detection device for light guide plate |
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| CN212207143U true CN212207143U (en) | 2020-12-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112781838A (en) * | 2020-12-25 | 2021-05-11 | 苏州清江精密机械科技有限公司 | Light guide plate detector and using method thereof |
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2020
- 2020-04-22 CN CN202020613517.9U patent/CN212207143U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112781838A (en) * | 2020-12-25 | 2021-05-11 | 苏州清江精密机械科技有限公司 | Light guide plate detector and using method thereof |
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