CN211577009U - Large-size liquid crystal display light guide plate defect image acquisition device - Google Patents
Large-size liquid crystal display light guide plate defect image acquisition device Download PDFInfo
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- CN211577009U CN211577009U CN201922261016.9U CN201922261016U CN211577009U CN 211577009 U CN211577009 U CN 211577009U CN 201922261016 U CN201922261016 U CN 201922261016U CN 211577009 U CN211577009 U CN 211577009U
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Abstract
The utility model provides a large-size liquid crystal display light guide plate defect image acquisition device, which comprises a conveying device, a limiting device and an image acquisition device; the conveying device comprises a motor, a guide wheel mounting plate, a first belt conveying platform driving force belt wheel, a power main shaft, a coupling, a first V-shaped belt, a second belt conveying platform driving force belt wheel, a first auxiliary belt wheel, a second auxiliary belt wheel, a driving force duplex belt wheel and a second V-shaped belt; the limiting device comprises two guide wheel mounting plates, four guide wheels, a transverse screw rod moving platform II, two transverse screw rod moving belt supporting frames and two bottom transverse screw rod moving belt supporting frames; the image acquisition device comprises an area-array camera, a camera support I, a lamp box I, a camera support II, a line scanning camera, a lamp box II and a lamp box support II. The utility model discloses this high quality image acquisition device of light guide plate can realize the automation mechanized operation to further improve the detection efficiency of light guide plate.
Description
Technical Field
The utility model relates to a light guide plate defect image acquisition device, concretely relates to jumbo size LCD screen light guide plate defect image acquisition device.
Background
The light guide plate is made of optical acrylic/polycarbonate and other plastic plates, and the materials have the advantages of high light transmittance of 92-95%, small light energy loss, easy processing, chemical stability, low cost and the like, so the light guide plate is generally used in the industry for producing the light guide plate; although plastic materials have good toughness, the surface hardness is weak to metals, inorganic materials, and the like, and scratches are likely to occur, which often affects the screen quality of the backlight.
The defects of the light guide plate mainly comprise scratches, stains, bright spots, black spots, shadows, yellowing and the like. And the outward appearance of traditional light guide plate detects mainly still to rely on artificial mode to go on, and the artificial detection has following shortcoming: 1. the detection quality is unstable due to subjective judgment and long-time eye fatigue; 2. the labor cost is high; 3. the labor intensity is high; 4. low labor efficiency and the like. Therefore, aiming at the defects, the light guide plate defect image acquisition device is provided for the subsequent algorithm detection.
Accordingly, there is a need for improvements in the art.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide an efficient jumbo size LCD screen light guide plate defect image acquisition device.
In order to solve the technical problem, the utility model provides a large-size liquid crystal display light guide plate defect image acquisition device, which comprises a conveying device, a limiting device and an image acquisition device;
the conveying device comprises a motor, a guide wheel mounting plate, a first belt conveying platform driving force belt wheel, a power main shaft, a coupling, a first V-shaped belt, a second belt conveying platform driving force belt wheel, a first auxiliary belt wheel, a second auxiliary belt wheel, a driving force duplex belt wheel and a second V-shaped belt;
the motor is connected with the main power duplex belt wheel through a coupler; the main power duplex belt wheel is rotationally connected with a main power belt wheel of the belt conveying table II through a V-shaped belt II to form a transmission structure; the V-shaped belt II penetrates through the auxiliary belt pulley II, and the main power duplex belt pulley drives the tail end conveying belt to convey; the second belt conveying table drives the intermediate conveying belt to convey by a main power belt wheel; the main power duplex belt wheel is also rotationally connected with a main power belt wheel of the belt conveying platform through a V-shaped belt I to form a transmission structure, the V-shaped belt I penetrates through the auxiliary belt wheel I, and the main power belt wheel of the belt conveying platform drives the head end conveying belt to convey;
the limiting device comprises two guide wheel mounting plates, four guide wheels, a transverse screw rod moving platform II, two transverse screw rod moving belt supporting frames and two bottom transverse screw rod moving belt supporting frames; the two bottom transverse screw rod moving belt supporting frames are respectively arranged on the left side and the right side of the head end conveying belt, and the transverse screw rod moving belt supporting frames are fixedly arranged on the bottom transverse screw rod moving belt supporting frames; a second transverse screw rod moving table capable of sliding is arranged on the support frame of the transverse screw rod moving belt, and two guide wheels are arranged on each second transverse screw rod moving table;
the image acquisition device comprises an area-array camera, a camera support I, a lamp box I, a camera support II, a line scanning camera, a lamp box II and a lamp box support II; the area array camera and the first lamp box are respectively connected with the first camera support and the first lamp box support; the line scanning camera and the second light box are respectively connected with the second camera support and the second light box support; the area-array camera is arranged on a transverse screw rod moving platform III of the camera support I through a longitudinal screw rod lifting platform I, and the line scanning camera is arranged on a transverse screw rod moving platform I of the camera support II through a longitudinal screw rod lifting platform II and a transverse screw rod moving platform II in sequence; a strip-shaped hole is formed in the first lamp box, and the line scanning camera faces the strip-shaped hole of the first lamp box; the second lamp box is arranged on the support through a second lamp box support, a third longitudinal screw rod lifting platform and a mobile platform support frame in sequence, and the second lamp box is positioned at the bottom of the conveying belt; the support above the second light box is provided with a rectangular hole, and the second light box and the area-array camera are respectively positioned on the upper side and the lower side of the conveyor belt.
As right the utility model discloses jumbo size LCD screen light guide plate defect image acquisition device's improvement:
the number of the area-array cameras is two.
As right the utility model discloses jumbo size LCD screen light guide plate defect image acquisition device's further improvement:
the auxiliary belt wheel I and the auxiliary belt wheel II are arranged on the support through an auxiliary belt wheel support I and an auxiliary belt wheel support II respectively.
As right the utility model discloses jumbo size LCD screen light guide plate defect image acquisition device's further improvement:
the second lamp box and the area-array camera are positioned on the same vertical line.
The utility model discloses jumbo size LCD screen light guide plate defect image acquisition device's technical advantage does:
the utility model discloses a transmission structure that parts such as motor, main power band pulley, auxiliary pulley, V type area, belt conveying platform constitute, control belt conveying platform is at the uniform velocity conveying light guide plate. The limiting devices are reasonably designed on the two sides of the conveying belt, so that the posture of the light guide plate before detection is guaranteed, and the subsequently collected pictures are approximately consistent. The high-quality image acquisition device of the light guide plate can realize automatic operation and further improve the detection efficiency of the light guide plate.
Drawings
The following describes the present invention in further detail with reference to the accompanying drawings.
Fig. 1 is a partial view of a camera according to the present invention;
fig. 2 is a partial view of the spacing device of the present invention;
FIG. 3 is a partial view of the transmission of the present invention;
FIG. 4 is a side view of the defect image collecting device for a large-sized LCD panel;
FIG. 5 is a bottom view of the defect image collecting device of the large-sized LCD panel of the present invention;
fig. 6 is the utility model discloses jumbo size LCD screen light guide plate defect image acquisition device's global schematic.
In the figure: the device comprises a support 1, a motor 2, an area-array camera 3, a first longitudinal screw rod lifting platform 4, a first camera support 5, a transverse screw rod moving platform 6, a second longitudinal screw rod lifting platform 7, a second camera support 8, a first transverse screw rod moving platform 9, a second transverse screw rod moving platform 10, a guide wheel mounting plate 11, a guide wheel 12, a first belt conveying platform 13, a first lamp box support 14, a first lamp box 15, a first belt conveying platform main power belt wheel 16, a power main shaft 17, a third belt conveying platform 18, a coupling 19, a first V-shaped belt 20, a second belt conveying platform main power belt wheel 21, a first auxiliary belt wheel 22, a second auxiliary belt wheel 23, a main power duplex belt wheel 24, a second V-shaped belt 25, a transverse screw rod moving belt support frame 26, a bottom transverse screw rod moving belt support frame 27, a linear scanning camera 28, a second lamp box 29, a second lamp box support 30, a third longitudinal screw rod lifting platform 31, a moving, A transverse screw rod moving platform bracket 34, an auxiliary belt wheel bracket I35, an auxiliary belt wheel bracket II 36 and a belt conveying platform II 37.
Detailed Description
The invention will be further described with reference to specific examples, but the scope of the invention is not limited thereto.
Embodiment 1, a defect image collecting device for a large-size liquid crystal display light guide plate, as shown in fig. 1-6, includes a bracket 1, where the bracket 1 is respectively and fixedly connected with a first camera bracket 5, a second camera bracket 8, a first lamp box bracket 14, a second lamp box bracket 30, and the like, and respectively plays a role in stably supporting a conveying device, a limiting device, an image collecting device, and the like. The limiting device and the image acquisition device are respectively positioned at two sides, below and above the conveying device and are respectively used for limiting and acquiring the light guide plates on the conveying device.
The transfer device includes: the device comprises a motor 2, a guide wheel mounting plate 11, a first belt conveying platform 13, a first belt conveying platform main power belt pulley 16, a power main shaft 17, a third belt conveying platform 18, a coupling 19, a first V-shaped belt 20, a second belt conveying platform main power belt pulley 21, a first auxiliary belt pulley 22, a second auxiliary belt pulley 23, a main power duplex belt pulley 24, a second V-shaped belt 25, a first auxiliary belt pulley support 35, a second auxiliary belt pulley support 36 and a second belt conveying platform 37.
The conveying device part is formed by fixedly arranging a first belt conveying table 13, a second belt conveying table 37 and a third belt conveying table 18 on the support 1 to play a role in supporting and fixing; the conveying belt is positioned on the belt conveying table and is driven by a first main power belt wheel 16 of the belt conveying table, a second main power belt wheel 21 of the belt conveying table and a main power duplex belt wheel 24; the motor 2 is connected with a main power duplex belt wheel 24 through a coupling 19 and used for providing power; the main power duplex belt wheel 24 is rotationally connected with the second main power belt wheel 21 of the belt conveying table through a V-shaped belt wheel 25 to form a transmission structure, the V-shaped belt wheel 25 penetrates through the second auxiliary belt wheel 23, the main power duplex belt wheel 24 drives the tail end conveying belt to transmit, and the second main power belt wheel 21 of the belt conveying table drives the middle conveying belt to transmit; the main power duplex belt wheel 24 is also rotatably connected with the main power belt wheel 16 of the belt conveying platform through the V-shaped belt wheel 20 to form a transmission structure, the V-shaped belt wheel 20 penetrates through the auxiliary belt wheel 22, and the main power belt wheel 16 of the belt conveying platform drives the head end conveying belt to convey. The motor 2 runs at a constant speed, and power is transmitted through a series of transmission structures, so that the conveyor belt can drive the light guide plate to move forward at a constant speed. The first auxiliary pulley 22 and the second auxiliary pulley 23 are arranged on the support 1 through a first auxiliary pulley support 35 and a second auxiliary pulley support 36 respectively, and the auxiliary pulley 22 and the auxiliary pulley 23 ensure that the V-belt is tensioned moderately.
Stop device includes: two guide wheel mounting plates 11, four guide wheels 12, a second transverse screw rod moving platform 10, two transverse screw rod moving belt supporting frames 26 and two bottom transverse screw rod moving belt supporting frames 27.
The two bottom transverse lead screw moving belt supporting frames 27 are respectively arranged on the left side and the right side of the head end conveying belt, a transverse lead screw moving belt supporting frame 26 is fixedly arranged on the bottom transverse lead screw moving belt supporting frame 27, a second transverse lead screw moving table 10 capable of sliding is arranged on the transverse lead screw moving belt supporting frame 26, and two guide wheels 12 are arranged on each second transverse lead screw moving table 10. The distance between the two limiting parts can be adjusted through the second transverse screw rod moving table 10, and the light guide plate is adjusted to be positioned at a proper position on the conveyor belt.
The image acquisition device includes: the system comprises an area-array camera 3, a camera support I5, a lamp box support I14, a lamp box I15, a camera support II 8, a line scanning camera 28, a lamp box II 29 and a lamp box support II 30. The area-array camera 3 and the first lamp box 15 are respectively connected with the first camera support 5 and the first lamp box support 14, and the line scan camera 28 and the second lamp box 29 are respectively connected with the second camera support 8 and the second lamp box support 30 to play a role in fixing. The area-array camera 3 is arranged on a third transverse screw rod moving platform 33 of the first camera support 5 through a first longitudinal screw rod lifting platform 4, and the line scanning camera 28 is arranged on a first transverse screw rod moving platform 9 of the second camera support 8 through a second longitudinal screw rod lifting platform 7 and a first transverse screw rod moving platform 6 in sequence. The first light box 15 is provided with a bar-shaped hole, and the line scan camera 28 faces the bar-shaped hole of the first light box 15, so as to photograph the light guide plate of the conveyor belt. The second light box 29 is arranged on the support 1 sequentially through a second light box support 30, a third longitudinal screw rod lifting table 31 and a moving table support frame 32, and the second light box 29 is located at the bottom of the conveyor belt. The support 1 above the second light box 29 is provided with a rectangular hole, and the second light box 29 and the area-array camera 3 are positioned on the same vertical line and are respectively positioned on the upper side and the lower side of the conveyor belt. Since the size of the light guide plate is large and the resolution of a single area-array camera is insufficient, two area-array cameras 3 are required.
After receiving the signal of the photoelectric sensor, the system lights the first light box 15, and triggers the line scanning camera 28 to continuously capture images to obtain an image of the light guide plate, so that the subsequent algorithm can detect the line defects. The light guide plate which has collected the line defect image is transmitted to the next working link by the rear-end transmission device, the second light box 29 is lightened after the system receives the signal of the photoelectric sensor 2, and the area-array camera 3 is triggered to continuously collect images at the same time, so that the obtained light guide plate image is used for detecting the defects such as stains, black spots and the like by a subsequent algorithm.
Finally, it is also noted that the above-mentioned list is only a few specific embodiments of the present invention. Obviously, the present invention is not limited to the above embodiments, and many modifications are possible. All modifications which can be derived or suggested by a person skilled in the art from the disclosure of the invention should be considered as within the scope of the invention.
Claims (4)
1. Jumbo size LCD screen light guide plate defect image acquisition device which characterized in that: comprises a conveying device, a limiting device and an image acquisition device;
the conveying device comprises a motor (2), a guide wheel mounting plate (11), a first belt conveying platform main power belt pulley (16), a power main shaft (17), a coupling (19), a first V-shaped belt (20), a second belt conveying platform main power belt pulley (21), a first auxiliary belt pulley (22), a second auxiliary belt pulley (23), a main power duplex belt pulley (24) and a second V-shaped belt (25);
the motor (2) is connected with a main power duplex belt wheel (24) through a coupling (19); the main power duplex belt wheel (24) is rotationally connected with the second main power belt wheel (21) of the belt conveying table through a V-shaped belt wheel (25) to form a transmission structure; the V-shaped belt II (25) penetrates through the auxiliary belt pulley II (23), and the main power duplex belt pulley (24) drives the tail end conveying belt to convey; the second belt conveying table drives an intermediate conveying belt to convey through a main power belt wheel (21); the main power duplex belt wheel (24) is further rotationally connected with a main power belt wheel (16) of the belt conveying platform through a V-shaped belt I (20) to form a transmission structure, the V-shaped belt I (20) penetrates through an auxiliary belt wheel I (22), and the main power belt wheel (16) of the belt conveying platform drives the head end conveying belt to convey;
the limiting device comprises two guide wheel mounting plates (11), four guide wheels (12), a transverse screw rod moving platform II (10), two transverse screw rod moving belt supporting frames (26) and two bottom transverse screw rod moving belt supporting frames (27); two bottom transverse screw rod moving belt supporting frames (27) are respectively arranged at the left side and the right side of the head end conveying belt, and a transverse screw rod moving belt supporting frame (26) is fixedly arranged on the bottom transverse screw rod moving belt supporting frame (27); a second transverse screw rod moving table (10) capable of sliding is arranged on the support frame (26) of the transverse screw rod moving belt, and two guide wheels (12) are arranged on each second transverse screw rod moving table (10);
the image acquisition device comprises an area-array camera (3), a camera support I (5), a lamp box support I (14), a lamp box I (15), a camera support II (8), a line scanning camera (28), a lamp box II (29) and a lamp box support II (30); the area-array camera (3) and the first lamp box (15) are respectively connected with the first camera support (5) and the first lamp box support (14); the line scanning camera (28) and the second light box (29) are respectively connected with the second camera support (8) and the second light box support (30); the area-array camera (3) is arranged on a third transverse screw rod moving platform (33) of the first camera support (5) through a first longitudinal screw rod lifting platform (4), and the line scanning camera (28) is arranged on a first transverse screw rod moving platform (9) of the second camera support (8) through a second longitudinal screw rod lifting platform (7) and a second transverse screw rod moving platform (6) in sequence; a strip-shaped hole is formed in the first light box (15), and the line scanning camera (28) is right opposite to the strip-shaped hole of the first light box (15); the second light box (29) is arranged on the support (1) sequentially through a second light box support (30), a third longitudinal screw rod lifting table (31) and a mobile table support frame (32), and the second light box (29) is positioned at the bottom of the conveyor belt; the support (1) above the second light box (29) is provided with a rectangular hole, and the second light box (29) and the area-array camera (3) are respectively positioned at the upper side and the lower side of the conveyor belt.
2. The large-size liquid crystal display light guide plate defect image collecting device according to claim 1, wherein:
the number of the area-array cameras (3) is two.
3. The large-size liquid crystal display light guide plate defect image collecting device according to claim 2, wherein:
the auxiliary belt wheel I (22) and the auxiliary belt wheel II (23) are arranged on the support (1) through an auxiliary belt wheel support I (35) and an auxiliary belt wheel support II (36) respectively.
4. The large-size liquid crystal display light guide plate defect image collecting device according to claim 3, wherein:
the second lamp box (29) and the area-array camera (3) are positioned on the same vertical line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922261016.9U CN211577009U (en) | 2019-12-17 | 2019-12-17 | Large-size liquid crystal display light guide plate defect image acquisition device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922261016.9U CN211577009U (en) | 2019-12-17 | 2019-12-17 | Large-size liquid crystal display light guide plate defect image acquisition device |
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| CN211577009U true CN211577009U (en) | 2020-09-25 |
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| CN201922261016.9U Active CN211577009U (en) | 2019-12-17 | 2019-12-17 | Large-size liquid crystal display light guide plate defect image acquisition device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112816489A (en) * | 2021-02-18 | 2021-05-18 | 中科慧远视觉技术(北京)有限公司 | Auxiliary device for visual detection and transmission device thereof |
| CN113740340A (en) * | 2021-07-12 | 2021-12-03 | 杭州衡眺科技有限公司 | Large-size liquid crystal display light guide plate defect detection equipment and detection method |
-
2019
- 2019-12-17 CN CN201922261016.9U patent/CN211577009U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112816489A (en) * | 2021-02-18 | 2021-05-18 | 中科慧远视觉技术(北京)有限公司 | Auxiliary device for visual detection and transmission device thereof |
| CN112816489B (en) * | 2021-02-18 | 2022-05-31 | 中科慧远视觉技术(北京)有限公司 | Auxiliary device for visual detection and transmission device thereof |
| CN113740340A (en) * | 2021-07-12 | 2021-12-03 | 杭州衡眺科技有限公司 | Large-size liquid crystal display light guide plate defect detection equipment and detection method |
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