A product appearance inspection apparatus

Abstract

The application provides a product appearance detection equipment and relates to the technical field of product appearance detection.The product appearance detection equipment comprises an assembly base, the assembly base is fixed at the bottom of a belt conveyor, a top connecting plate is installed at the top of the assembly base, the top side of the top connecting plate is in contact with the bottom side of the belt conveyor, four L-shaped debugging frames are connected inside the assembly base, two high-definition recognition heads are installed at the top of the L-shaped debugging frames, the high-definition recognition heads are located at the left and right sides of the top of the belt conveyor, and bent guide plates are connected outside the L-shaped debugging frames.The position of the high-definition recognition head is changed according to the different sizes of products, so that the high-definition recognition head and the product are in the best shooting distance, and the accuracy of product appearance detection is ensured.The existing product appearance detection equipment has the problem that the position of the high-definition recognition head is fixed, and the high-definition recognition head can only be used for specific product appearance detection, when different products are replaced for appearance detection, the high-definition recognition head and the product are easy to exceed the best shooting distance, and the accuracy of appearance detection is affected.

Description

Technical Field

[0001] This invention relates to the field of product appearance inspection technology, and in particular to a product appearance inspection device. Background Technology

[0002] Product appearance inspection equipment utilizes computer vision technology to capture product images through high-definition cameras. Combined with image processing software and AI algorithms, it identifies and evaluates the product's surface color, shape, size, defects, etc. It aims to improve inspection accuracy, efficiency, and stability, and is widely used in manufacturing, electronics, automobile manufacturing, food processing, and medical device industries.

[0003] Current product appearance inspection equipment typically uses a fixed installation design for its high-definition recognition head, resulting in a constant distance between the recognition head and the product to be inspected. This means that the equipment can only be adapted to the appearance inspection needs of specific products. When it is necessary to switch to inspect products of different specifications or sizes, the high-definition recognition head cannot automatically adjust to the optimal shooting distance from the product surface, which can easily lead to problems such as blurred images and loss of details, affecting the accuracy of appearance defect recognition and the reliability of inspection results. Summary of the Invention

[0004] This invention relates to a product appearance inspection device, which solves the problem that existing product appearance inspection devices have a fixed position of the high-definition recognition head, resulting in a constant distance between the high-definition recognition head and the product. This makes the device only suitable for the appearance inspection needs of specific products. When different products are used for appearance inspection, the distance between the high-definition recognition head and the product easily exceeds the optimal shooting distance, affecting the accuracy of appearance inspection.

[0005] In a first aspect, this invention provides a product appearance inspection device, specifically comprising: an assembly base, a top connecting plate, an L-shaped debugging frame, a high-definition recognition head, a bending guide plate, a fastening nut A, a through-beam sensor, a fastening nut B, a movable turntable, and limiting bolts; the assembly base is fixed to the bottom of a belt conveyor, and a top connecting plate is installed on the top of the assembly base, with the top side of the top connecting plate contacting the bottom side of the belt conveyor; four L-shaped debugging frames are internally connected to the assembly base, and two high-definition recognition heads are installed on the top of the L-shaped debugging frames, located on the left and right sides of the top of the belt conveyor; a bending guide plate is externally connected to the L-shaped debugging frames, with the bottom of the bending guide plate contacting the top side of the conveyor belt, and fastening nuts A are externally connected to the bending guide plate; through-beam sensors are externally connected to the L-shaped debugging frames, with two through-beam sensors symmetrically located on the left and right sides of the top of the belt conveyor, and fastening nuts B are externally connected to the through-beam sensors; a movable turntable is connected to the bottom of the assembly base, and the movable turntable is connected to the bottom of the four L-shaped debugging frames, with limiting bolts internally connected to the movable turntable.

[0006] Furthermore, the four L-shaped debugging frames are arranged in a ring, and the eight high-definition recognition heads are arranged in a ring with diagonal symmetrical orientation, wherein the four high-definition recognition heads at the top are tilted downwards at a 30-degree angle.

[0007] Furthermore, the assembly base is provided with an X-shaped guide groove inside, the bottom of the L-shaped debugging frame is slidably connected to the X-shaped guide groove, the bottom of the X-shaped guide groove is provided with four sliding holes, and the bottom of the L-shaped debugging frame is provided with a force-bearing slider, which is slidably connected to the sliding holes.

[0008] Furthermore, the movable turntable is rotatably connected to the assembly base, and four arc-shaped holes are arranged around the inside of the movable turntable. The arc-shaped holes are connected to the sliding holes, and the end of the force-bearing slider is slidably connected in the arc-shaped holes.

[0009] Furthermore, the assembly base is provided with positioning holes at equal intervals on its outer side, and the movable turntable is provided with screw holes on its outer periphery. The screw holes are connected to the positioning holes, and the limit bolts are threaded into the screw holes, with the ends of the limit bolts located in the positioning holes.

[0010] Furthermore, two of the L-shaped debugging frames are provided with horizontal guide rods on the outside, and the other two L-shaped debugging frames are provided with horizontal guide holes inside, with the horizontal guide rods sliding through the horizontal guide holes.

[0011] Furthermore, the top of the horizontal guide rod is provided with an assembly plate, the assembly plate has a movable hole inside, and two studs are provided outside the through-beam sensor. The studs are movably connected in the movable hole, and the fastening nut B is threadedly connected to the studs. The fastening nut B is in contact with the outside of the assembly plate.

[0012] Furthermore, the L-shaped debugging frame is provided with an external vertical connecting rod, the top of which has two through holes, and the external of the bent guide plate has two screws that pass through the through holes. The fastening nut A is threadedly connected to the screw, and the two fastening nuts A are in contact with each other on opposite sides of the vertical connecting rod.

[0013] This invention provides a product appearance inspection device, which has the following beneficial effects: In use, this invention utilizes a conveyor belt to transport the product. When the product moves to the center of eight high-definition recognition heads, the eight heads perform a surround-view inspection of the product's appearance to determine if there are any defects. The force-bearing slider and sliding hole work together to guide the movement of the L-shaped adjustment frame, limiting its movement distance. The L-shaped adjustment frame can be adaptively adjusted according to different product sizes, changing the position of the high-definition recognition heads to ensure the optimal shooting distance between the heads and the product, guaranteeing the accuracy of product appearance inspection and better meeting the needs of products of different sizes.

[0014] In addition, when the movable turntable is rotated, the end of the force-bearing slider moves within the arc-shaped hole, driving the four L-shaped adjustment frames to move and adjust synchronously, ensuring the consistency of the distance between the high-definition recognition head and the product's perimeter. After the movable turntable has been rotated and adjusted, the screw hole and the positioning hole are connected. Tightening the limit bolts extends the end of the limit bolts into the positioning holes, thereby limiting and fixing the movable turntable and ensuring the stability of the L-shaped adjustment frames.

[0015] Furthermore, when the product moves to the center of the eight high-definition recognition heads, it is positioned between two through-beam sensors. These sensors detect the product and transmit signals to the control module, which then activates the high-definition recognition heads to automatically inspect the product's appearance. The through-beam sensors can be adjusted according to the distance between adjacent high-definition recognition heads, and the locking nut B can be tightened to fix the sensors in place, ensuring they are positioned between adjacent high-definition recognition heads. This allows for accurate and timely detection when the product moves to the center of the eight high-definition recognition heads, preventing positional deviations.

[0016] In addition, when the product is transported on the conveyor belt, the bending guide plate is used to adjust the product position so that the product is in the middle of the conveyor belt, so as to achieve a better and more accurate appearance inspection effect. The position of the bending guide plate can be adjusted according to the different specifications and sizes of the product, and the distance between the two bending guide plates can be changed to achieve precise centering of the product, which better meets the needs of practical applications. After the bending guide plate is adjusted, the two fastening nuts A are tightened to fix the bending guide plate and ensure the stability of the bending guide plate.

[0017] Other advantages, objectives and features of the present invention will become apparent in part from the following description, and in part from those skilled in the art through study and practice of the invention. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below.

[0019] The accompanying drawings described below are only related to some embodiments of the invention and are not intended to limit the invention.

[0020] In the attached diagram: Figure 1 This paper shows a schematic diagram of the overall top-axis structure of the product appearance inspection equipment of this application; Figure 2 This paper shows a schematic diagram of the overall bottom axis structure of the product appearance inspection equipment of this application; Figure 3 This is a schematic top view of the overall structure of the product appearance inspection equipment of this application; Figure 4This paper shows a schematic diagram of the connection structure between the assembly base and the L-shaped debugging frame of the product appearance inspection equipment of this application; Figure 5 This paper shows a schematic diagram of the disassembled structure of the assembly base and movable turntable of the product appearance inspection equipment of this application; Figure 6 This paper shows a schematic diagram of the axonometric structure of the assembly base of the product appearance inspection equipment of this application; Figure 7 This paper shows a schematic diagram of the L-shaped test frame axonometric structure of the product appearance inspection equipment of this application; Figure 8 A schematic diagram of the axial structure of the bending guide plate of the product appearance inspection equipment of this application is shown; Figure 9 A schematic diagram of the through-beam sensor axial structure of the product appearance inspection device of this application is shown.

[0021] Figure label: 1. Assembly base; 101. X-shaped guide groove; 1011. Sliding hole; 102. Positioning hole; 2. Top connecting plate; 3. L-shaped adjustment frame; 301. Force-bearing slider; 302. Horizontal guide rod; 3021. Assembly plate; 30211. Movable hole; 303. Horizontal guide hole; 304. Vertical connecting rod; 3041. Through hole; 4. High-definition recognition head; 5. Bending guide plate; 501. Screw; 6. Tighten nut A; 7. Through-beam sensor; 701. Stud; 8. Tighten nut B; 9. Movable turntable; 901. Arc-shaped hole; 902. Screw hole; 10. Limit bolts. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the described embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Please refer to Figures 1 to 9 Example 1: This invention proposes a product appearance inspection device, comprising: an assembly base 1, a top connecting plate 2, an L-shaped adjustment frame 3, a high-definition recognition head 4, a bending guide plate 5, a fastening nut A6, a through-beam sensor 7, a fastening nut B8, a movable turntable 9, and a limit bolt 10; the assembly base 1 is fixed to the bottom of a belt conveyor, and the top connecting plate 2 is installed on the top of the assembly base 1, with the top side of the top connecting plate 2 contacting the bottom side of the belt conveyor; four L-shaped adjustment frames 3 are connected inside the assembly base 1, and two high-definition recognition heads 4 are installed on the top of the L-shaped adjustment frames 3, with the high-definition recognition heads 4 located on the belt conveyor. The top left and right sides of the belt conveyor; the L-shaped debugging frame 3 is externally connected to a bent guide plate 5, the bottom of the bent guide plate 5 is in contact with the top side of the conveyor belt of the belt conveyor, and the bent guide plate 5 is externally connected to a fastening nut A6; the L-shaped debugging frame 3 is externally connected to a through-beam sensor 7, the two through-beam sensors 7 are symmetrically located on the top left and right sides of the belt conveyor, and the through-beam sensor 7 is externally connected to a fastening nut B8; the bottom of the assembly base 1 is connected to a movable turntable 9, the movable turntable 9 is connected to the bottom of the four L-shaped debugging frames 3, and the movable turntable 9 is internally connected to a limit bolt 10.

[0024] In this embodiment, four L-shaped debugging frames 3 are arranged in a circle, and eight high-definition recognition heads 4 are arranged in a circle diagonally symmetrical orientation, wherein the four high-definition recognition heads 4 located at the top are tilted downwards at 30 degrees. Using the above technical solution, the product is transported by a conveyor belt. When the product moves to the middle of the eight high-definition recognition heads 4, the eight high-definition recognition heads 4 perform a surround appearance inspection operation to determine whether there are any defects in the product's appearance.

[0025] In this embodiment, the assembly base 1 is provided with an X-shaped guide groove 101 inside, the bottom of the L-shaped debugging frame 3 is slidably connected to the X-shaped guide groove 101, the bottom of the X-shaped guide groove 101 is provided with four sliding holes 1011, the bottom of the L-shaped debugging frame 3 is provided with a force-bearing slider 301, and the force-bearing slider 301 is slidably connected to the sliding holes 1011. Using the above technical solution, the force-bearing slider 301 and the sliding hole 1011 slide together to guide the movement of the L-shaped adjustment frame 3 and limit the movement distance of the L-shaped adjustment frame 3. The L-shaped adjustment frame 3 can be adaptively adjusted according to the different product specifications and sizes to change the position of the high-definition recognition head 4, so that the high-definition recognition head 4 and the product are at the optimal shooting distance, ensuring the accuracy of product appearance inspection and better meeting the application needs of products of different specifications and sizes.

[0026] In this embodiment, the movable turntable 9 is rotatably connected to the assembly base 1. The movable turntable 9 has four arc-shaped holes 901 arranged around its interior. The arc-shaped holes 901 are connected to the sliding holes 1011. The end of the force-bearing slider 301 is slidably connected to the arc-shaped holes 901. Using the above technical solution, when the movable turntable 9 is rotated, the end of the force-bearing slider 301 moves within the arc-shaped hole 901, driving the four L-shaped adjustment frames 3 to move and adjust synchronously, ensuring the consistency of the distance between the high-definition recognition head 4 and the product's perimeter.

[0027] In this embodiment, the mounting base 1 is provided with positioning holes 102 at equal intervals on the outside, the movable turntable 9 is provided with screw holes 902 on the periphery, the screw holes 902 are connected to the positioning holes 102, the limiting bolts 10 are threaded into the screw holes 902, and the end of the limiting bolts 10 is located in the positioning holes 102. Using the above technical solution, after the movable turntable 9 has been rotated and adjusted, the screw hole 902 and the positioning hole 102 are in a connected state. Tighten the limiting bolt 10 so that the end of the limiting bolt 10 extends into the positioning hole 102, thereby limiting and fixing the movable turntable 9 and ensuring the stability of the L-shaped debugging frame 3.

[0028] In this embodiment, two L-shaped debugging frames 3 are provided with horizontal guide rods 302 on the outside, and two other L-shaped debugging frames 3 are provided with horizontal guide holes 303 inside. The horizontal guide rods 302 slide through the horizontal guide holes 303. The top of the horizontal guide rods 302 is provided with an assembly plate 3021. The assembly plate 3021 is provided with a movable hole 30211 inside. The outside of the through-beam sensor 7 is provided with two studs 701. The studs 701 are movably connected to the movable hole 30211. The fastening nut B8 is threadedly connected to the studs 701 and contacts the outside of the assembly plate 3021. Using the above technical solution, when the product moves to the middle of the eight high-definition recognition heads 4, the product is positioned between the two through-beam sensors 7. The through-beam sensors 7 sense the product and transmit the signal to the control module, which then controls the high-definition recognition heads 4 to turn on and automatically inspect the product's appearance. The displacement of the through-beam sensors 7 can be adjusted according to the different distances between adjacent high-definition recognition heads 4, and the fastening nut B8 can be tightened to fix the through-beam sensors 7 in the middle of adjacent high-definition recognition heads 4. This ensures accurate and timely sensing when the product moves to the middle of the eight high-definition recognition heads 4, avoiding positional deviations.

[0029] In Example 2, based on Example 1, an L-shaped debugging frame 3 is provided with a vertical connecting rod 304 on the outside. The top of the vertical connecting rod 304 is provided with two through holes 3041. The bent guide plate 5 is provided with two screws 501 on the outside. The screws 501 pass through the through holes 3041. The fastening nut A6 is threadedly connected to the screw 501. The two fastening nuts A6 are in contact with the opposite sides of the vertical connecting rod 304. Using the above technical solution, when the product is transported on the conveyor belt, the bending guide plate 5 is used to adjust the product position so that the product is in the middle of the conveyor belt, so as to achieve a better and more accurate appearance inspection effect. The position of the bending guide plate 5 can be adjusted according to the different specifications and sizes of the product, and the distance between the two bending guide plates 5 can be changed to achieve precise centering of the product, which better meets the needs of practical applications. After the bending guide plate 5 is adjusted, the two fastening nuts A6 are tightened to fix the bending guide plate 5 and ensure the stability of the bending guide plate 5.

[0030] The working principle of this embodiment is as follows: First, depending on the size of the product, the movable turntable 9 is rotated, and the end of the force-bearing slider 301 moves within the arc-shaped hole 901, driving the four L-shaped adjustment frames 3 to move and adjust synchronously, changing the position of the high-definition recognition head 4, so that the high-definition recognition head 4 is at the optimal shooting distance from the product, ensuring the accuracy of product appearance inspection; after the movable turntable 9 has been rotated and adjusted, the screw hole 902 and the positioning hole 102 are in a connected state, and the limit bolt 10 is tightened so that the end of the limit bolt 10 extends into the positioning hole 102, which has a limiting and fixing effect on the movable turntable 9, ensuring the stability of the L-shaped adjustment frame 3; next, according to the different distances between adjacent high-definition recognition heads 4, the displacement of the through-beam sensor 7 is adjusted, and the fastening nut B8 is tightened to fix the through-beam sensor 7, so that the through-beam sensor 7 is in a connected state. Sensor 7 is positioned in the middle of adjacent high-definition recognition heads 4, enabling precise and timely sensing when the product moves to the center of the eight high-definition recognition heads 4. The position of the bending guide plate 5 is then adjusted, changing the distance between the two bending guide plates 5 to ensure precise centering of the product. Two fastening nuts A6 are tightened to secure the bending guide plate 5 and ensure its stability. The product is transported via a conveyor belt, with the bending guide plate 5 adjusting its position to ensure it is in the middle of the conveyor belt for better and more accurate appearance inspection. When the product moves to the center of the eight high-definition recognition heads 4, the through-beam sensor 7 senses the product and transmits the signal to the control module, which then activates the high-definition recognition heads 4 to automatically inspect the product's appearance and determine if any defects exist.

[0031] The following points should be noted in this article: 1. The accompanying drawings of the embodiments of the present invention only involve the structures involved in the embodiments of the present invention; other structures can refer to general designs.

[0032] 2. Where there is no conflict, the embodiments of the present invention and the features thereof can be combined with each other to obtain new embodiments.

[0033] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A product appearance inspection device, comprising: The assembly base (1), top connecting plate (2), L-shaped debugging frame (3), high-definition recognition head (4), bending guide plate (5), fastening nut A (6), through-beam sensor (7), fastening nut B (8), movable turntable (9), and limiting bolt (10) are characterized in that the assembly base (1) is fixed to the bottom of the belt conveyor, and the top of the assembly base (1) is equipped with a top connecting plate (2), the top side of the top connecting plate (2) is in contact with the bottom side of the belt conveyor; four L-shaped debugging frames (3) are connected inside the assembly base (1), and two high-definition recognition heads (4) are installed on the top of the L-shaped debugging frames (3), the high-definition recognition heads (4) are located on the top of the belt conveyor. The L-shaped debugging frame (3) is connected to the outside of a bent guide plate (5). The bottom of the bent guide plate (5) contacts the top side of the conveyor belt of the belt conveyor. The bent guide plate (5) is connected to the outside of a fastening nut A (6). The L-shaped debugging frame (3) is connected to the outside of a through-beam sensor (7). The two through-beam sensors (7) are symmetrically located on the left and right sides of the top of the belt conveyor. The through-beam sensor (7) is connected to the outside of a fastening nut B (8). The bottom of the assembly base (1) is connected to a movable turntable (9). The movable turntable (9) is connected to the bottom of the four L-shaped debugging frames (3). The movable turntable (9) is connected to the inside of a limit bolt (10).

2. The product appearance inspection equipment according to claim 1, characterized in that, The four L-shaped debugging frames (3) are arranged in a circle, and the eight high-definition recognition heads (4) are arranged in a circle diagonally symmetrical orientation, of which the four high-definition recognition heads (4) located at the top are tilted downwards at 30 degrees.

3. The product appearance inspection equipment according to claim 1, characterized in that, The assembly base (1) is provided with an X-shaped guide groove (101) inside. The bottom of the L-shaped debugging frame (3) is slidably connected to the X-shaped guide groove (101). The bottom of the X-shaped guide groove (101) is provided with four sliding holes (1011). The bottom of the L-shaped debugging frame (3) is provided with a force-bearing slider (301). The force-bearing slider (301) is slidably connected to the sliding hole (1011).

4. The product appearance inspection equipment according to claim 3, characterized in that, The movable turntable (9) is rotatably connected to the mounting base (1). The movable turntable (9) has four arc-shaped holes (901) arranged around its interior. The arc-shaped holes (901) are connected to the sliding holes (1011). The end of the force-bearing slider (301) is slidably connected to the arc-shaped holes (901).

5. The product appearance inspection equipment according to claim 1, characterized in that, The assembly base (1) has equidistant positioning holes (102) on its outside. The movable turntable (9) has screw holes (902) on its periphery. The screw holes (902) are connected to the positioning holes (102). The limit bolt (10) is threaded into the screw hole (902), and the end of the limit bolt (10) is located in the positioning hole (102).

6. The product appearance inspection equipment according to claim 1, characterized in that, Two of the L-shaped debugging frames (3) are provided with horizontal guide rods (302) on the outside, and the other two L-shaped debugging frames (3) are provided with horizontal guide holes (303) inside, with the horizontal guide rods (302) sliding through the horizontal guide holes (303).

7. The product appearance inspection equipment according to claim 6, characterized in that, The top of the horizontal guide rod (302) is provided with an assembly plate (3021), and the assembly plate (3021) is provided with a movable hole (30211). The outside of the through-beam sensor (7) is provided with two studs (701), which are movably connected in the movable hole (30211). The fastening nut B (8) is threadedly connected to the studs (701), and the fastening nut B (8) is in contact with the outside of the assembly plate (3021).

8. The product appearance inspection equipment according to claim 1, characterized in that, The L-shaped debugging frame (3) is provided with a vertical connecting rod (304) on the outside. The top of the vertical connecting rod (304) is provided with two through holes (3041). The bent guide plate (5) is provided with two screws (501) on the outside. The screws (501) pass through the through holes (3041). The fastening nut A (6) is threadedly connected to the screw (501). The two fastening nuts A (6) are in contact with the opposite sides of the vertical connecting rod (304).

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