Detection device for OCA (Optical Clear Adhesive) product

Abstract

The utility model discloses a detection device for an OCA (Optical Clear Adhesive) product, which comprises a rack, a left runner assembly and a right runner assembly are arranged on the rack, and a gap is formed between the left runner assembly and the right runner assembly; the camera assembly is installed on the rack, and the camera assembly is located above the left flow channel assembly; the light source assembly is located below the right flow channel assembly; wherein the shooting direction of the camera assembly and the irradiation direction of the light source assembly are located on the same straight line, the shooting direction of the camera assembly is inclined relative to the product, and light rays of the light source assembly penetrate through the gap and irradiate the product. The shooting direction of the camera assembly is obliquely arranged at a small angle, and the irradiation direction of the light source assembly and the shooting direction of the camera assembly are positioned on the same straight line, so that the influence of high transparency of a product on shooting imaging can be reduced, the product imaging is clearer, and defects are easier to identify.

Description

Technical Field

[0001] The utility model relates to the technical field of detection devices, in particular to a detection device for an OCA optical film product. Background Art

[0002] OCA (Optically Clear Adhesive) is a special adhesive used to bond transparent optical components (such as lenses, etc.). It is required to be colorless and transparent, with a light transmittance of more than 95% and good bonding strength.

[0003] It cures at room or medium temperature and has the characteristics of small shrinkage during curing. OCA optical adhesive film products are prone to defects (such as deformation defects) during the production process, so OCA optical adhesive film products need to be tested.

[0004] Currently, there are two common inspection methods: direct transmission inspection and reflective inspection. Direct transmission inspection places the light source and camera perpendicular to the product. However, due to the product's high transparency, it is difficult to clearly identify defects. Reflective inspection is prone to interference from reflections. Therefore, existing inspection methods have poor detection results, and improvements to the inspection equipment are needed. Utility Model Content

[0005] In order to solve the problems existing in the prior art, the utility model provides a detection device for OCA optical film products, which makes the product image clear through small-angle transmission, which is conducive to improving the detection effect.

[0006] The technical solution adopted by the present invention to solve the technical problem is: an OCA optical film product detection device, comprising: a frame, on which a left flow channel component and a right flow channel component are installed, and a gap is formed between the left flow channel component and the right flow channel component; a camera component, which is installed on the frame and located above the left flow channel component; a light source component, which is located below the right flow channel component; wherein the shooting direction of the camera component and the light source component are

[0007] The irradiation directions are located on the same straight line, the shooting direction of the camera assembly is tilted relative to the product, and the light from the light source assembly is irradiated on the product through the gap.

[0008] Furthermore, the camera assembly includes: a first connecting seat, a second connecting seat, a first mounting block and a camera, the first connecting seat is connected to the frame, the second connecting seat is rotatably connected to the first connecting seat, the first mounting block is connected to the second connecting seat, and the camera is installed on the first mounting block.

[0009] Furthermore, the light source assembly includes: a first support, a second support and a light source, the second support is rotatably connected to the first support, the light source is connected to the second support, and the irradiation direction of the light source is toward the gap.

[0010] Furthermore, the left flow channel assembly includes: a first conveyor belt, a first conveyor roller, a second conveyor roller and a third conveyor roller. Both ends of the first conveyor roller, both ends of the second conveyor roller and both ends of the third conveyor roller are connected to the frame, and the first conveyor belt is sleeved on the first conveyor roller, the second conveyor roller and the third conveyor roller.

[0011] Furthermore, the position of the third conveying roller is adjustable in the left-right direction.

[0012] Furthermore, the right flow channel assembly includes: a second conveyor belt, a fourth conveyor roller and a fifth conveyor roller, both ends of the fourth conveyor roller and the fifth conveyor roller are connected to the frame, and the second conveyor belt is mounted on the fourth conveyor roller and the fifth conveyor roller.

[0013] Furthermore, the position of the fifth conveying roller is adjustable in the up and down directions.

[0014] Furthermore, a transition plate is provided between the left flow channel assembly and the right flow channel assembly, and both ends of the transition plate are connected to the frame.

[0015] Furthermore, during detection, the right end of the left flow channel component is lower than the left end of the right flow channel component.

[0016] The beneficial effect of the present invention is that, by improving the structure of the detection device, the present invention tilts the shooting direction of the camera assembly at a small angle, and the irradiation direction of the light source assembly is aligned with the shooting direction of the camera assembly. This can reduce the impact of the high transparency of the product on the shooting image, making the product image clearer and defects easier to identify. By setting the position of the third conveyor roller to be adjustable in the left and right directions, the gap size can be adjusted to allow the light emitted by the light source to accurately illuminate the photographed position of the product. By setting the position of the fifth conveyor roller to be adjustable in the up and down directions, the light emitted by the light source can be prevented from being blocked, which is conducive to improving the clarity of the image. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Figure 1 It is a three-dimensional schematic diagram of the detection device of the present utility model.

[0019] Figure 2 It is a structural schematic diagram of the camera assembly of the present utility model.

[0020] Figure 3 It is a cross-sectional view of the detection device of the present utility model.

[0021] Figure 4 It is a structural schematic diagram of the light source assembly of the utility model.

[0022] Figure 5 It is a schematic diagram of the positional relationship between the third conveying roller and the fifth conveying roller of the present utility model.

[0023] Figure 6 It is a structural schematic diagram of the first support plate of the utility model.

[0024] Figure 7 It is a structural schematic diagram of the second support plate of the utility model.

[0025] In the figure: 1. frame; 2. left flow channel assembly; 3. right flow channel assembly; 4. camera assembly; 5. light source assembly; 6. transition plate; 7. drive motor; 8. synchronous belt; 21. first conveyor belt; 22. first conveyor roller; 23. second conveyor roller; 24. third conveyor roller; 31. second conveyor belt; 32. fourth conveyor roller; 33. fifth conveyor roller; 41. first connecting seat; 42. second connecting seat; 43. first mounting block; 44. camera; 51. first support; 52. second support; 53. light source; 101. first support plate; 102. second support plate; 103. first waist-shaped hole; 104. first fixing block; 105. second waist-shaped hole; 106. fixing hole; 107. second fixing block. DETAILED DESCRIPTION

[0026] The present invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic diagrams that illustrate the basic structure of the present invention in a schematic manner.

[0027] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0028] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0029] like Figures 1 to 7 As shown, the detection device for OCA optical film products of the present invention includes: a frame 1, a camera assembly 4 and a light source assembly 5, the frame 1 is equipped with a left flow channel assembly 2 and a right flow channel assembly 3, and there is a gap between the left flow channel assembly 2 and the right flow channel assembly 3; the camera assembly 4 is installed on the frame 1, and the camera assembly 4 is located above the left flow channel assembly 2; the light source assembly 5 is located below the right flow channel assembly 3; wherein, the shooting direction of the camera assembly 4 and the irradiation direction of the light source assembly 5 are located on the same straight line, the shooting direction of the camera assembly 4 is inclined relative to the product, and the light from the light source assembly 5 is irradiated on the product through the gap.

[0030] It should be noted that the shooting direction of the camera assembly 4 forms an angle α with the horizontal plane, 0<α<45° (for example, 15° in this embodiment), and the light source assembly 5 is irradiated from the bottom to the upper left of the right flow channel assembly 3 through the gap onto the product. The irradiation direction of the light source assembly 5 and the shooting direction of the camera assembly 4 are on the same straight line, so that the camera assembly 4 can capture clearer images. The shooting direction of the camera assembly 4 is set at an angle, which can reduce the impact of product transparency on imaging and can capture defects more clearly. After obtaining the image of the product, defects can be identified using existing detection methods (such as CN116993719A).

[0031] The camera assembly 4 includes a first connecting base 41, a second connecting base 42, a first mounting block 43, and a camera 44. The first connecting base 41 is connected to the frame 1, the second connecting base 42 is rotatably connected to the first connecting base 41, the first mounting block 43 is connected to the second connecting base 42, and the camera 44 is mounted on the first mounting block 43. The first connecting base 41 is fixed to the crossbeam of the frame 1, and the second connecting base 42 and the first connecting base 41 are connected by a pin. Before the pin is locked, the second connecting base 42 can rotate relative to the first connecting base 41 to allow the camera 44 to be adjusted to the desired shooting angle. After the pin is locked, the position between the second connecting base 42 and the first connecting base 41 is fixed. The illumination point of the camera 44 falls on the right end of the left flow channel assembly 2.

[0032] The light source assembly 5 includes a first support 51, a second support 52, and a light source 53. The second support 52 is rotatably connected to the first support 51, and the light source 53 is connected to the second support 52. The illumination direction of the light source 53 is toward the gap. The first support 51 is installed on the ground or a work platform. The second support 52 and the first support 51 are connected by a pin. Before the pin is locked, the second support 52 can rotate relative to the first support 51 to change the illumination angle of the light source 53. After the pin is locked, the position of the second support 52 and the first support 51 is fixed. The light emitted by the light source 53 passes through the gap and illuminates the product. The light source 53 is a bar light source.

[0033] The left flow channel assembly 2 includes a first conveyor belt 21, a first conveyor roller 22, a second conveyor roller 23, and a third conveyor roller 24. Both ends of the first conveyor roller 22, the second conveyor roller 23, and the third conveyor roller 24 are connected to the frame 1. The first conveyor belt 21 is sleeved over the first conveyor roller 22, the second conveyor roller 23, and the third conveyor roller 24. The first conveyor roller 22 and the third conveyor roller 24 tension the first conveyor belt 21. The second conveyor roller 23 is located between the first and third conveyor rollers 22, 24 and supports the first conveyor belt 21.

[0034] The right flow channel assembly 3 includes a second conveyor belt 31, a fourth conveyor roller 32, and a fifth conveyor roller 33. Both ends of the fourth conveyor roller 32 and the fifth conveyor roller 33 are connected to the frame 1. The second conveyor belt 31 is sleeved over the fourth conveyor roller 32 and the fifth conveyor roller 33. The fourth conveyor roller 32 and the fifth conveyor roller 33 tension the second conveyor belt 31.

[0035] It should be noted that the frame 1 includes a first support plate 101 and a second support plate 102, which are arranged opposite each other. The first, second, third, fourth, and fifth conveyor rollers 22, 23, 24, 32, and 33 are connected to the first and second support plates 101, 102 at their respective ends. The first conveyor roller 22, located at one end of the first support plate 101, is connected to the drive motor 7. The first conveyor roller 22, located at one end of the second support plate 102, and the fourth conveyor roller 32, located at one end of the second support plate 102, are mounted on the same synchronous belt 8. When the first conveyor roller 22 rotates under the drive motor 7, the synchronous belt 8 drives the fourth conveyor roller 32 to rotate. Rotation of the first conveyor roller 22 drives the first conveyor belt 21 to convey the product, while rotation of the fourth conveyor roller 32 drives the second conveyor belt 31 to convey the product. During use, OCA optical adhesive film products are conveyed from the right flow channel assembly 3 to the left flow channel assembly 2.

[0036] In this embodiment, the position of the third conveyor roller 24 is adjustable in the left-right direction. For example, two first waist-shaped holes 103 are respectively defined in the first support plate 101 and the second support plate 102. The length of each first waist-shaped hole 103 is arranged in the left-right direction. The end of the third conveyor roller 24 is secured to the first waist-shaped hole 103 via a first fixing block 104. In other words, there are two first fixing blocks 104, one of which is secured to each of the two first waist-shaped holes 103. By adjusting the position of the first fixing block 104 at different locations on the first waist-shaped holes 103, the left-right position of the first conveyor roller 24 can be adjusted. Since the left-right position of the right flow channel assembly 3 remains unchanged, the width of the gap can be adjusted when the left-right position of the first conveyor roller 24 changes. Thus, in actual use, by adjusting the gap width, the light emitted by the light source 53 can be illuminated at the imaging point of the product, preventing light from being blocked by the third conveyor roller 24.

[0037] In this embodiment, the position of the fifth conveyor roller 33 is adjustable in the vertical direction. For example, a second waist-shaped hole 105 and two fixing holes 106 are respectively defined in the first support plate 101 and the second support plate 102. The end of the fifth conveyor roller 33 extends through the second waist-shaped hole 105 and is connected to the second fixing block 107. The second fixing block 107 is screwed to the fixing holes 106. The length of the second waist-shaped hole 105 is arranged in the vertical direction. The fifth conveyor roller 33 can move vertically within the second waist-shaped hole 105 to adjust its height. After the height is determined, the second fixing block 107 is fixed to the fixing holes 106. It should be noted that during testing, the right end of the left flow channel assembly 2 is lower than the left end of the right flow channel assembly 3. Specifically, the height of the third conveyor roller 24 is lower than that of the fifth conveyor roller 33 (for example, the height difference between the axis of the third conveyor roller 24 and the axis of the fifth conveyor roller 33 is approximately 2 mm, and the specific height difference can be adjusted according to actual conditions). Since the product flows from the right flow channel assembly 3 to the left flow channel assembly 2, and the camera 44's shooting point is located to the left of the third conveyor roller 24, if the third conveyor roller 24 is set flush with the fifth conveyor roller 33, the light emitted by the light source 53 will be blocked by the third conveyor roller 24 and cannot illuminate the product where it is being photographed, resulting in unclear and poor image quality. Setting the third conveyor roller 33 lower than the fifth conveyor roller 33 allows the light emitted by the light source 53 to illuminate the product where it is being photographed, improving image quality.

[0038] For example, a transition plate 6 is provided between the left flow channel assembly 2 and the right flow channel assembly 3 , with both ends of the transition plate 6 connected to the frame 1 . Specifically, the ends of the transition plate 6 are fixedly connected to the first support plate 101 and the second support plate 102 , respectively. The transition plate 6 is located near the right side of the third conveyor roller 24 and is lower than the upper surface of the third conveyor roller 24 . This prevents light from the light source 53 from being blocked by the transition plate 6 . The transition plate 6 prevents products from falling through the gap when passing through it.

[0039] Working process:

[0040] The OCA optical adhesive film product enters the second conveyor belt 31 from the previous process. The second conveyor belt 31 conveys the product to the left. When the product passes the shooting point, the camera 44 captures the image of the product. As the product is conveyed, the left end of the product will contact the first conveyor belt 21. Different positions of the product will be captured by the camera 44 as it moves until the entire area of the entire OCA optical adhesive film product is captured. Finally, the product is conveyed to the next process by the first conveyor belt 21.

[0041] In summary, the present invention improves the structure of the detection device, tilting the camera assembly 4 at a small angle, and aligning the illumination direction of the light source assembly 5 with the camera assembly 4. This reduces the impact of the product's high transparency on the image, making the product image clearer and defects easier to identify. By setting the position of the third conveyor roller 24 to be adjustable in the left-right direction, the gap size can be adjusted, allowing the light emitted by the light source 53 to accurately illuminate the product's photographed position. By setting the position of the fifth conveyor roller 33 to be adjustable in the up-down direction, the light emitted by the light source 53 can be prevented from being blocked, which helps improve the clarity of the image.

[0042] Based on the above-described preferred embodiments of the present invention, and in accordance with the above description, relevant personnel are fully capable of making various changes and modifications without departing from the technical scope of the present invention. The technical scope of the present invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A detection device for OCA optical film products, characterized in that: include: A frame (1), wherein a left flow channel assembly (2) and a right flow channel assembly (3) are mounted on the frame (1), and a gap is formed between the left flow channel assembly (2) and the right flow channel assembly (3); A camera assembly (4), the camera assembly (4) being mounted on the frame (1), and the camera assembly (4) being located above the left flow channel assembly (2); a light source assembly (5), the light source assembly (5) being located below the right flow channel assembly (3); The shooting direction of the camera assembly (4) and the irradiation direction of the light source assembly (5) are located on the same straight line, the shooting direction of the camera assembly (4) is arranged to be inclined relative to the product, and the light of the light source assembly (5) is irradiated onto the product through the gap.

2. The detection device for OCA optical adhesive film products according to claim 1, characterized in that: The camera assembly (4) comprises: a first connecting seat (41), a second connecting seat (42), a first mounting block (43) and a camera (44); the first connecting seat (41) is connected to the frame (1); the second connecting seat (42) is rotatably connected to the first connecting seat (41); the first mounting block (43) is connected to the second connecting seat (42); and the camera (44) is mounted on the first mounting block (43).

3. The detection device for OCA optical adhesive film products according to claim 1, characterized in that: The light source assembly (5) comprises: a first support (51), a second support (52) and a light source (53); the second support (52) is rotatably connected to the first support (51); the light source (53) is connected to the second support (52); and the irradiation direction of the light source (53) is toward the gap.

4. The detection device for OCA optical adhesive film products according to claim 1, characterized in that: The left flow channel component (2) comprises: a first conveying belt (21), a first conveying roller (22), a second conveying roller (23) and a third conveying roller (24); both ends of the first conveying roller (22), both ends of the second conveying roller (23) and both ends of the third conveying roller (24) are connected to the frame (1); the first conveying belt (21) is sleeved on the first conveying roller (22), the second conveying roller (23) and the third conveying roller (24).

5. The detection device for OCA optical adhesive film products according to claim 4, characterized in that: The position of the third conveying roller (24) is adjustable in the left-right direction.

6. The detection device for OCA optical adhesive film products according to claim 1, characterized in that: The right flow channel assembly (3) comprises: a second conveyor belt (31), a fourth conveyor roller (32) and a fifth conveyor roller (33); both ends of the fourth conveyor roller (32) and both ends of the fifth conveyor roller (33) are connected to the frame (1); and the second conveyor belt (31) is sleeved on the fourth conveyor roller (32) and the fifth conveyor roller (33).

7. The detection device for OCA optical adhesive film products according to claim 6, characterized in that: The position of the fifth conveying roller (33) is adjustable in the up and down directions.

8. The detection device for OCA optical adhesive film products according to claim 1, characterized in that: A transition plate (6) is provided between the left flow channel assembly (2) and the right flow channel assembly (3), and both ends of the transition plate (6) are connected to the frame (1).

9. The detection device for OCA optical adhesive film products according to claim 1, wherein: During detection, the right end of the left flow channel component (2) is lower than the left end of the right flow channel component (3).

Images