A notch detection device

Abstract

The present invention provides a notch detection device, which relates to the technical field of testing tools and includes a base frame. A belt conveyor mechanism is installed in the middle of the base frame. Brackets are symmetrically arranged on the left and right sides of the upper end of the base frame. A top frame is installed between the upper ends of the brackets on the left and right sides. The top frame is fixedly connected to a first electric telescopic rod. The first electric telescopic rod is connected to an installation mechanism. A line array camera is installed in the installation mechanism. The line array camera is electrically connected to an image processing module. The image processing module is used to take one row every n rows from the images captured by the line array camera, form a new image with the new rows, and then perform edge extraction on the new recombined image. Trend judgment is performed on the extracted edges to determine whether there is a notch, which not only solves the misjudgment in the static situation but also solves the misjudgment in the case of large left and right offsets of the material.

Description

Technical Field

[0001] The present invention relates to the technical field of testing tools, and particularly to a notch detection device. Background Art

[0002] At present, material notch detection is achieved by using an edge detection sensor that outputs the edge position of the material at high speed, and the output frequency should be at least above 1KHz. By caching the edge position and making a trend judgment to determine whether there is a notch. This judgment method assumes that the material moving in the forward direction has a very small offset in the left and right directions, and the material movement is uniform. Only in this case, the trend judgment is the most accurate. If the material is stationary, even if there is a notch in the material, the notch cannot be judged. If the material has a large offset in the left and right directions, the false judgment rate of the notch will increase significantly. Summary of the Invention

[0003] The present invention provides a notch detection device to solve the above-mentioned technical problems that if the material is stationary, even if there is a notch in the material, the notch cannot be judged, and if the material has a large offset in the left and right directions, the false judgment rate of the notch will increase significantly.

[0004] To solve the above technical problems, the present invention discloses a notch detection device, which includes a base frame. A belt conveyor mechanism is installed in the middle of the base frame. Brackets are symmetrically arranged on the left and right sides at the upper end of the base frame. A top frame is installed between the upper ends of the brackets on the left and right sides. The top frame is fixedly connected to an electric telescopic rod I, and the electric telescopic rod I is connected to an installation mechanism. A line array camera is installed in the installation mechanism, and the line array camera is electrically connected to an image processing module.

[0005] Preferably, the line array camera is used to photograph the material to be detected conveyed by the belt conveyor mechanism.

[0006] Preferably, the image processing module is used to take one row every n rows from the image photographed by the line array camera, form a new image with the new rows, extract the edge of the new figure, and make a trend judgment on the extracted edge.

[0007] Preferably, the installation mechanism includes an installation shell. An installation groove II is provided inside the installation shell. A rotating shaft I is rotatably provided between the front and rear ends of the installation groove II. The rotating shaft I passes through the front end of the installation groove II and is fixedly connected to an external motor. The motor is fixedly arranged at the front end of the installation shell. The rotating shaft I is fixedly connected to a disc and a gear I. Rotating rods are symmetrically arranged at the left and right ends of the disc. A sliding cavity I is provided on the rotating rod. The sliding cavity I is slidably connected to a sliding shaft I, and a spring I is fixedly provided between the sliding cavity I and the sliding shaft I. The sliding shaft I is rotatably connected to a connecting rod. The gear I meshes with a gear II, and the gear II meshes with a rack. The rack is slidably arranged at the lower end of the installation groove II.

[0008] Preferably, the mounting mechanism further includes a rotating shell. An installation groove one is provided at the lower end of the rotating shell. On the upper left and right sides of the upper end of the installation groove one, L-shaped sliding plates are symmetrically provided. A linear array camera is clamped and fixed between the L-shaped sliding plates on the left and right sides. A second spring is fixedly provided between the L-shaped sliding plate and the rotating shell.

[0009] Preferably, on the left and right sides of the lower end of the mounting shell, a movable hole and a through hole are symmetrically provided. A connecting rod is correspondingly provided in the movable hole. A connecting rope is provided in the through hole. The connecting rope is connected to a guide pulley. The guide pulley is rotatably arranged at the upper end of the rotating shell. The connecting rope is fixedly connected to the L-shaped sliding plate. One end of the connecting rope away from the L-shaped sliding plate is fixedly connected to the rack.

[0010] Preferably, on the left and right sides of the upper end of the rotating shell, a second sliding cavity is symmetrically provided. A second sliding shaft is slidably arranged in the second sliding cavity. A third spring is fixedly provided between the second sliding cavity and the second sliding shaft. The second sliding shaft is rotatably connected to the connecting rod. A connecting block is rotatably arranged between the upper end of the rotating shell and the lower end of the mounting shell.

[0011] Preferably, a heat dissipation mechanism is further included. The heat dissipation mechanism includes motors symmetrically arranged at the left and right ends of the rotating shell. The motors are fixedly connected to motor shafts. The motor shafts penetrate through the side ends of the rotating shell and enter the installation groove one and are fixedly connected to fans. The fans are correspondingly arranged with heat dissipation holes provided on the L-shaped sliding plates.

[0012] The technical solution of the present invention will be further described in detail below with reference to the drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention. In the drawings:

[0014] Figure 1 is a schematic structural diagram of the present invention;

[0015] Figure 2 is a schematic structural diagram of the mounting mechanism of the present invention.

[0016] In the figure: 1, base frame; 2, installation groove one; 3, support; 4, belt conveyor mechanism; 5, top frame; 6, first electric telescopic rod; 7, mounting shell; 8, rotating shell; 9, linear array camera; 10, L-shaped sliding plate; 11, second spring; 12, installation groove two; 13, first rotating shaft; 14, disc; 15, first gear; 16, rotating rod; 17, first sliding cavity; 18, first sliding shaft; 19, first spring; 20, rack; 21, connecting block; 22, connecting rod; 23, movable hole; 24, second sliding shaft; 25, third spring; 26, second sliding cavity; 27, connecting rope; 28, guide pulley; 29, heat dissipation hole; 30, motor; 31, motor shaft; 32, fan; 33, second gear. Detailed implementation manners

[0017] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0018] In addition, in the present invention, descriptions such as "first", "second", etc. are only for descriptive purposes, and do not particularly refer to the order or sequence. Nor are they used to limit the present invention. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first", "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions and technical features between various embodiments can be combined with each other, but it must be based on the fact that those skilled in the art can implement them. When the combination of technical solutions appears to be contradictory or unable to be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

[0019] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0020] In addition, in the present invention, descriptions such as "first", "second", etc. are only for descriptive purposes, and do not particularly refer to the order or sequence. Nor are they used to limit the present invention. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first", "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions and technical features between various embodiments can be combined with each other, but it must be based on the fact that those skilled in the art can implement them. When the combination of technical solutions appears to be contradictory or unable to be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

[0021] The present invention provides the following embodiments

[0022] Embodiment 1

[0023] The embodiment of the present invention provides a notch detection device, as Figure 1 shown, including a base frame 1. A belt conveyor mechanism 4 is installed in the middle of the base frame 1. Brackets 3 are symmetrically arranged on the left and right sides of the upper end of the base frame 1. A top frame 5 is installed between the upper ends of the brackets 3 on the left and right sides. The top frame 5 is fixedly connected to an electric telescopic rod 6. The electric telescopic rod 6 is connected to an installation mechanism. A line array camera 9 is installed in the installation mechanism. The line array camera 9 is electrically connected to an image processing module;

[0024] The area array camera 9 is used to photograph the material to be detected conveyed by the belt conveyor mechanism 4;

[0025] The image processing module is used to take one row every n rows from the images taken by the area array camera 9, form a new image with the new rows, extract the edges of the new figure, and judge the trend of the extracted edges.

[0026] The beneficial effects of the above technical solution are:

[0027] The image processing module is used to take one row every n rows from the images taken by the area array camera 9, form a new image with the new rows. The specific method is as follows: data grouping module: divide the original image data collected by the area array camera 9 into multiple groups of image data according to the number of rows; channel module: used to generate multiple groups of parallel data based on the multiple groups of image data, including multiple channel units connecting the data grouping module, and each of the channel units generates a group of parallel data based on a group of image data; data recombination module, connecting each of the channel units, and used to recombine the multiple groups of parallel data groups taken in the way of taking one row every n rows into image data. The serial data output module is connected to the data recombination module, generates serial data based on the synthesized image data and outputs it to the display module to form a recombined image. The above method (refer to CN202011351749 - image transmission system and image signal generator), then extract the edges of the new recombined image, and judge the trend of the extracted edges to determine whether it is a notch. This not only solves the misjudgment in the static situation, but also solves the misjudgment in the case of large left - right offset of the material. It solves the technical problems that if the material is static, even if there is a notch in the material, the notch cannot be judged, and if the left - right offset of the material is relatively large, the misjudgment rate of the notch will increase significantly. Due to the extraction method of taking one row every n rows, it can adapt to the higher machine speed of the belt conveyor mechanism 4, thus meeting the on - site requirements.

[0028] Embodiment 2

[0029] On the basis of Embodiment 1, as Figures 1 - 2As shown in the figure, the installation mechanism includes an installation shell 7. Inside the installation shell 7, there is an installation groove two 12. Between the front and rear ends of the installation groove two 12, a rotating shaft one 13 is rotatably provided. The rotating shaft one 13 passes through the front end of the installation groove two 12 and is fixedly connected to an external motor. The motor is fixedly arranged at the front end of the installation shell 7. The rotating shaft one 13 is fixedly connected to a disc 14 and a gear one 15. Symmetrically arranged at the left and right ends of the disc 14 are rotating rods 16. On the rotating rod 16, there is a sliding cavity one 17. The sliding cavity one 17 is slidably connected to a sliding shaft one 18. And between the sliding cavity one 17 and the sliding shaft one 18, a spring one 19 is fixedly provided. The sliding shaft one 18 is rotatably connected to a connecting rod 22. The gear one 15 meshes with a gear two 33. The gear two 33 meshes with a rack 20. The rack 20 is slidably arranged at the lower end of the installation groove two 12;

[0030] The installation mechanism further includes a rotating shell 8. At the lower end of the rotating shell 8, there is an installation groove one 2. Symmetrically arranged on the upper left and right sides of the upper end of the installation groove one 2 are L-shaped sliding plates 10. A linear array camera 9 is clamped and fixed between the L-shaped sliding plates 10 on the left and right sides. Between the L-shaped sliding plates 10 and the rotating shell 8, a spring two 11 is fixedly provided;

[0031] Symmetrically arranged on the lower left and right sides of the lower end of the installation shell 7 are movable holes 23 and through holes. In the movable holes 23, corresponding connecting rods 22 are provided. In the through holes, a connecting rope 27 is provided. The connecting rope 27 is connected to a guide rope wheel 28. The guide rope wheel 28 is rotatably arranged at the upper end of the rotating shell 8. The connecting rope 27 is fixedly connected to the L-shaped sliding plate 10. The end of the connecting rope 27 far from the L-shaped sliding plate 10 is fixedly connected to the rack 20;

[0032] Symmetrically arranged on the upper left and right sides of the upper end of the rotating shell 8 are sliding cavities two 26. In the sliding cavities two 26, sliding shafts two 24 are slidably arranged. Between the sliding cavities two 26 and the sliding shafts two 24, a spring three 25 is fixedly provided. The sliding shafts two 24 are rotatably connected to the connecting rod 22. Between the upper end of the rotating shell 8 and the lower end of the installation shell 7, a connecting block 21 is rotatably provided.

[0033] The beneficial effects of the above technical solutions are as follows:

[0034] By setting the L-shaped sliding plates 10, the vertical ends of the L-shaped sliding plates 10 clamp and fix the left and right ends of the linear array camera 9. The horizontal ends of the L-shaped sliding plates 10 contact the lower end of the linear array camera 9, preventing the linear array camera 9 from falling. The setting of the spring two 11 enables the L-shaped sliding plates 10 to slide along the upper end of the installation groove one 2, facilitating the installation and fixation of the linear array camera 9;

[0035] When controlling the rotation of the rotating housing 8 to adjust the shooting angle of the area array camera 9, the motor is started. The motor drives the first rotating shaft 13 to rotate, and the first rotating shaft 13 drives the disc 14 and the first gear 15 to rotate. When the disc 14 rotates, it drives the rotating rods 16 on both the left and right sides to rotate. The rotating rods 16 drive the connecting rod 22 to rotate through the first sliding shaft 18. The connecting rod 22 drives the rotating housing 8 to rotate through the second sliding shaft 24. When the rotating housing 8 rotates, it drives the area array camera 9 to rotate, adjusting the angle of the area array camera 9 in the left-right direction. The settings of the first spring 19 and the third spring 25 ensure the stability of the rotation process between the rotating housing 8 and the mounting housing 7. When the first gear 15 rotates, it drives the second gear 33 to rotate. The second gear 33 drives the rack 20 to slide along the lower end of the second mounting groove 12. The rack 20 pulls the connecting rope 27. By setting the first gear 15 and the second gear 33, it is ensured that the rotation direction of the rotating housing 8 is the same as the moving direction of the rack 20, so that the connecting rope 27 is always in a taut state. Thus, the clamping force of the vertical end of the L-shaped sliding plate 10 on the left and right ends of the area array camera 9 remains unchanged, preventing the center of gravity of the area array camera 9 from changing after the rotating housing 8 drives the area array camera 9 to tilt and affecting the clamping effect of the vertical end of the L-shaped sliding plate 10 on the area array camera 9.

[0036] Embodiment 3

[0037] On the basis of Embodiment 2, as Figures 1 - 2 shown, it further includes a heat dissipation mechanism. The heat dissipation mechanism includes motors 30 symmetrically arranged at both left and right ends of the rotating housing 8. The motors 30 are fixedly connected to the motor shafts 31. The motor shafts 31 penetrate through the side ends of the rotating housing 8 and enter the first mounting groove 2 and are fixedly connected to the fans 32. The fans 32 are correspondingly arranged with the heat dissipation holes 29 provided on the L-shaped sliding plate 10.

[0038] The beneficial effects of the above technical solutions are as follows:

[0039] When the area array camera 9 is working, the motors 30 are started. The motors 30 drive the motor shafts 31 to rotate, and the motor shafts 31 drive the fans 32 to rotate, dissipating heat from the area array camera 9 and ensuring the stable operation of the area array camera 9.

[0040] Obviously, those skilled in the art can make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention also intends to include these modifications and variations.

Claims

1. A notch detection device, characterized in that: It includes a base frame (1). A belt conveyor mechanism (4) is installed in the middle of the base frame (1). Brackets (3) are symmetrically arranged on the left and right sides at the upper end of the base frame (1). A top frame (5) is installed between the upper ends of the brackets (3) on the left and right sides. The top frame (5) is fixedly connected to an electric telescopic rod one (6). The electric telescopic rod one (6) is connected to an installation mechanism. A linear array camera (9) is installed in the installation mechanism. The linear array camera (9) is electrically connected to an image processing module; The installation mechanism includes an installation shell (7). An installation groove two (12) is provided inside the installation shell (7). A rotating shaft one (13) is rotatably arranged between the front and rear ends of the installation groove two (12). The rotating shaft one (13) penetrates through the front end of the installation groove two (12) and is fixedly connected to an external motor. The motor is fixedly arranged at the front end of the installation shell (7). The rotating shaft one (13) is fixedly connected to a disc (14) and a gear one (15). Rotating rods (16) are symmetrically arranged at the left and right ends of the disc (14). A sliding cavity one (17) is provided on the rotating rod (16). The sliding cavity one (17) is slidably connected to a sliding shaft one (18). A spring one (19) is fixedly arranged between the sliding cavity one (17) and the sliding shaft one (18). The sliding shaft one (18) is rotatably connected to a connecting rod (22). The gear one (15) meshes with a gear two (33). The gear two (33) meshes with a rack (20). The rack (20) is slidably arranged at the lower end of the installation groove two (12); The installation mechanism further includes a rotating shell (8). An installation groove one (2) is provided at the lower end of the rotating shell (8). L-shaped sliding plates (10) are symmetrically arranged on the left and right sides at the upper end of the installation groove one (2). A linear array camera (9) is clamped and fixed between the L-shaped sliding plates (10) on the left and right sides. A spring two (11) is fixedly arranged between the L-shaped sliding plate (10) and the rotating shell (8); Activity holes (23) and through holes are symmetrically arranged on the left and right sides at the lower end of the installation shell (7). Connecting rods (22) are correspondingly arranged in the activity holes (23). A connecting rope (27) is arranged in the through holes. The connecting rope (27) is connected to a guide rope wheel (28). The guide rope wheel (28) is rotatably arranged at the upper end of the rotating shell (8). The connecting rope (27) is fixedly connected to the L-shaped sliding plate (10). One end of the connecting rope (27) far from the L-shaped sliding plate (10) is fixedly connected to the rack (20); Sliding cavities two (26) are symmetrically arranged on the left and right sides at the upper end of the rotating shell (8). Sliding shafts two (24) are slidably arranged in the sliding cavities two (26). A spring three (25) is fixedly arranged between the sliding cavities two (26) and the sliding shafts two (24). The sliding shafts two (24) are rotatably connected to the connecting rod (22). A connecting block (21) is rotatably arranged between the upper end of the rotating shell (8) and the lower end of the installation shell (7).

2. The notch detection device according to claim 1, characterized in that: The linear array camera (9) is used to photograph the material to be detected conveyed by the belt conveyor mechanism (4).

3. The notch detection device according to claim 2, wherein: The image processing module is used to take one row every n rows from the image photographed by the linear array camera (9), form a new image with the new rows, extract the edges of the new figure, and judge the trend of the extracted edges.

4. A notch detection device according to claim 1, wherein: It further includes a heat dissipation mechanism. The heat dissipation mechanism includes motors (30) symmetrically arranged at the left and right ends of a rotating shell (8). The motors (30) are fixedly connected to motor shafts (31). The motor shafts (31) penetrate through the side ends of the rotating shell (8) and enter an installation groove one (2), and are fixedly connected to fans (32). The fans (32) are correspondingly arranged with heat dissipation holes (29) provided on an L-shaped sliding plate (10).

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