A hot bar detection device based on machine vision

Abstract

The present invention relates to the technical field of hot bar detection, and proposes a hot bar detection device based on machine vision, comprising a first support seat, a second support seat is arranged on both sides of the first support seat, an adjustment component is installed on the first support seat, a support ring is arranged on the adjustment component, a first motor is fixedly installed on the support ring, a first rotating wheel is fixedly arranged on the output shaft of the first motor, a first rotating ring is arranged abuttingly below the first rotating wheel, an infrared thermal imager is arranged on the first rotating ring, and a second motor is installed in the second support seat. Through the above technical scheme, the problem that the existing hot bar detection device cannot switch between the two functions of conveying and rotating the hot bar to adjust the detection position, and the problem that the existing detection device has a large contact surface with the hot bar when conveying the hot bar, which easily leads to rapid heat loss and affects the accuracy of hot bar detection is solved.

Description

Technical Field

[0001] The invention relates to the technical field of hot bar material detection, and in particular to a hot bar material detection device based on machine vision. Background Art

[0002] With the continuous development of industrial automation and intelligent manufacturing, production line inspection and quality control have become the key links to improve production efficiency and product quality. Especially in the metallurgical, steel and other industries, the production process of hot bars requires high-precision inspection of products to ensure that the product size, surface quality and shape meet the standards. The existing hot bar inspection devices still have some defects.

[0003] For example, the invention patent with publication number CN118583921A discloses an online infrared detection device for rods, including: a rod conveying assembly, used to convey the rods to be detected. A rod heating assembly, used to heat the rods on the rod conveying assembly; a rod temperature measuring assembly, located behind the rod heating assembly along the rod conveying direction, used to measure the temperature of the rods on the rod conveying assembly; a data processing assembly, used to determine the defect information of the rods based on the collected rod temperature data. The rods are heated by the rod heating assembly, so that the surface temperature of the rods rises rapidly, thereby highlighting the difference between the defective and non-defective temperatures of the rods, and ensuring the effect of infrared detection.

[0004] Although the above-mentioned device can realize the heating detection function, it is not possible to switch between the two functions of conveying and rotating the hot bar to adjust the detection position when in use. In addition, when conveying hot bars, the existing detection device has a large contact surface with the hot bar, which easily leads to rapid heat loss. It is impossible to reduce the contact area while realizing the conveying function, which affects the accuracy of hot bar detection. When performing surround detection, the existing hot bar detection device cannot quickly align the detection structure and the central axis of the hot bar when conveying hot bars of different sizes. Summary of the invention

[0005] The present invention proposes a hot bar detection device based on machine vision, which solves the problem that the existing hot bar detection device cannot switch between the two functions of conveying and rotating the hot bar to adjust the detection position, and the existing detection device has a large contact surface with the hot bar when conveying the hot bar, which easily causes rapid heat loss and affects the accuracy of hot bar detection.

[0006] The technical solution of the present invention is as follows:

[0007] A hot bar material detection device based on machine vision comprises a first support seat, a second support seat is arranged on both sides of the first support seat, an adjustment assembly is installed on the first support seat, a support ring is arranged on the adjustment assembly, a first motor is fixedly installed on the support ring, a first rotating wheel is fixedly arranged on the output shaft of the first motor, a first rotating ring is abuttedly arranged below the first rotating wheel, an infrared thermal imager is installed on the first rotating ring, a second motor is installed in the second support seat, a plurality of first rotating shafts and second rotating shafts are rotatably installed on the second support seat, and the output shaft of the second motor is rotatably connected to one of the first rotating shafts The gears are connected to each other, a synchronous belt is installed between two adjacent first rotating shafts, a first gear is connected to the top of the first rotating shaft, a second gear is meshingly connected to the side of the first gear, the first gear and the first rotating shaft are fixedly connected, the second gear and the second rotating shaft are fixedly connected, a driving assembly is installed on both the first gear and the second gear, a rotating block is abutted against the top of the driving assembly, a shell is sleeved on the outer side of the rotating block, the shell and the first supporting seat are fixedly connected, a connecting plate is fixedly arranged between the two adjacent shells, and the hot rod body is placed between the two adjacent rotating blocks.

[0008] As a preferred solution of the present invention, the adjustment assembly includes a connecting plate fixedly connected to the support ring, a fixing rod is fixedly connected to the connecting plate, a fixing plate is fixedly provided on the top of the fixing rod, and a first electric push rod is fixedly installed between the fixing plate and the first support seat.

[0009] As a preferred solution of the present invention, the first electric push rod passes through the interior of the connecting plate, the connecting plates are symmetrically distributed on both sides of the support ring, and the central axis of the support ring is flush with the central axis of the hot rod body.

[0010] As a preferred solution of the present invention, the outer sides of the first rotating wheel and the first rotating ring are both provided with transverse convex patterns, the first rotating wheel is made of rubber, and the infrared thermal imager forms a rotating structure through the first rotating wheel, the first rotating ring and the support ring.

[0011] As a preferred solution of the present invention, a fixed block is installed on the first rotating ring, a second rotating ring is rotatably installed in the fixed block, a third rotating ring is fixedly arranged on the second rotating ring, and notches are arranged on the second rotating ring and the third rotating ring.

[0012] As a preferred solution of the present invention, the driving assembly includes a support block fixedly connected to the first gear and the second gear, a third motor is fixedly mounted on the support block, a second rotating wheel is fixedly connected to the output shaft of the third motor, and the top of the second rotating wheel abuts against the bottom of the rotating block.

[0013] As a preferred solution of the present invention, the second rotating wheel is provided with transverse convex patterns, the second rotating wheel is made of rubber, the upper and lower sides of the outer shell are both open structures, the rotating block is a spherical structure, and the first gear and the central axes of the second rotating wheel and the rotating block above the first gear are all on the same straight line.

[0014] As a preferred solution of the present invention, the rotating block and the outer shell are evenly distributed on both sides of the first support seat, and the inner wall of the outer shell and the outer wall of the rotating block are in contact with each other.

[0015] As a preferred solution of the present invention, the thickness of the second rotating ring is greater than that of the third rotating ring, a fourth motor is installed on the fixed block, a third rotating wheel is fixedly connected to the output shaft of the fourth motor, and the upper part of the third rotating wheel is in contact with the second rotating ring.

[0016] As a preferred solution of the present invention, the inner wall of the third rotating ring is fixedly connected with a first pressure block, a second pressure block and a third pressure block in sequence in a counterclockwise direction. The shapes of the first pressure block, the second pressure block and the third pressure block are all different, and a protrusion is fixedly connected to the first pressure block.

[0017] The working principle and beneficial effects of the present invention are:

[0018] 1. By setting a rotating block and a driving assembly of a spherical structure, when the third motor on the driving assembly drives the second rotating wheel to rotate, the rotating block of the spherical structure will be driven to rotate in the shell, so that the hot rod between the two rotating blocks can rotate with its own central axis as the axis, so that when it is subsequently detected by an infrared thermal imager, the detection position can be accurately adjusted, thereby enhancing the adaptability of the device. In addition, the device can drive the first rotating shaft and the first gear to rotate through the second motor, driving the second gear to rotate in the opposite direction, so that the angles of the two groups of driving assemblies on both sides of the device can be adjusted at the same time. When the central axes of the two adjacent second rotating wheels overlap each other, the third motor drives the first rotating shaft and the first gear to rotate. The rotation of the second rotating wheel will drive the rotating block to rotate, and the rotating block will drive the hot rod body to move forward, so as to subsequently accurately detect different positions of the hot rod, thereby solving the problem that the existing hot rod detection device cannot switch between the two functions of conveying and rotating the hot rod to adjust the detection position. In addition, the device conveys the hot rod through the rotating block of the spherical structure. Compared with the traditional rotary wheel conveying, it can not only realize the functions of conveying and steering, but also reduce the contact area with the hot rod, thereby enhancing the detection accuracy of the device and solving the problem that the existing hot rod detection device has a large contact surface with the hot rod, which easily leads to rapid heat loss.

[0019] 2. Through the adjustment components, support rings and first rotating rings on the device, when the device is conveying hot bars of different diameters, the first electric push rod can be extended or shortened to make the connecting plate, the support ring and the first rotating ring move up and down as a whole, so that the central axis of the first rotating ring is aligned with the central axis of the hot bar. At this time, when the infrared thermal imager moves in a circular motion, the center of the moving radius is located on the central axis of the hot bar, so that the hot bar can be detected by the infrared thermal imager that circles around to see whether the hot bar is deformed, thereby realizing the function of centering detection and solving the problem that the existing hot bar detection device cannot quickly align the detection structure and the central axis of the hot bar when conveying hot bars of different sizes.

[0020] 3. The device is provided with an adjusting component, a second rotating ring, a third rotating ring and three pressure blocks. When the first electric push rod on the adjusting component is extended or shortened, the first pressure block, the second pressure block or the third pressure block of different shapes on the third rotating ring can be used to press and test the rod. The device can not only detect hot rods, but also perform pressure tests on cooled rods. The device has the advantage of a wider detection range. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0022] Figure 1 It is a schematic diagram of the overall structure of a hot bar material detection device based on machine vision of the present invention;

[0023] Figure 2 yes Figure 1 A magnified schematic diagram of the structure at center A;

[0024] Figure 3 yes Figure 1 A magnified schematic diagram of the structure at B in the middle;

[0025] Figure 4 This is a schematic diagram of the split structure of the first gear and the first rotating shaft of the present invention;

[0026] Figure 5 yes Figure 4 A magnified schematic diagram of the structure at C in the middle;

[0027] Figure 6 It is a schematic diagram of the connection structure between the housing and the rotating block of the present invention;

[0028] Figure 7 is a schematic diagram of the connection structure between the first motor and the first rotating wheel of the present invention;

[0029] Figure 8 yes Figure 7 A magnified schematic diagram of the structure at position D in the middle.

[0030] 1. The first supporting seat; 2. The second supporting seat; 3. The adjusting assembly; 301. The first electric push rod; 302. The fixing rod; 303. The fixing plate; 304. The connecting plate; 4. The supporting ring; 5. The first motor; 6. The first rotating wheel; 7. The first rotating ring; 8. The infrared thermal imager; 9. The second motor; 10. The first rotating shaft; 11. The first gear; 12. The second gear; 13. The driving assembly; 1301. The supporting block; 1302. The third motor; 1303. The second rotating wheel; 14. The outer shell; 15. The connecting plate; 16. The rotating block; 17. The hot rod body; 18. The synchronous belt; 19. The fixing block; 20. The fourth motor; 21. The third rotating wheel; 22. The second rotating ring; 23. The third rotating ring; 24. The first pressing block; 25. The protrusion; 26. The second pressing block; 27. The third pressing block; 28. The second rotating shaft. DETAILED DESCRIPTION

[0031] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example 1

[0032] like Figure 1-Figure 8As shown, this embodiment proposes a hot bar detection device based on machine vision, including a first support seat 1, a second support seat 2 is arranged on both sides of the first support seat 1, an adjustment component 3 is installed on the first support seat 1, a support ring 4 is arranged on the adjustment component 3, a first motor 5 is fixedly installed on the support ring 4, a first rotating wheel 6 is fixedly arranged on the output shaft of the first motor 5, a first rotating ring 7 is abutted below the first rotating wheel 6, the adjustment component 3 is used to adjust the initial height of the support ring 4, so that the support ring 4 is aligned with the central axis of the bar to ensure the accuracy of subsequent detection, an infrared thermal imager 8 is installed on the first rotating ring 7, a second motor 9 is installed in the second support seat 2, a plurality of first rotating shafts 10 and second rotating shafts 28 are rotatably installed on the second support seat 2, the output shaft of the second motor 9 is connected to one of the first rotating shafts 10, a synchronous belt 18 is installed between two adjacent first rotating shafts 10, a first gear 11 is connected to the top of the first rotating shaft 10, and a second gear 12 is meshingly connected to the side of the first gear 11. The first gear 11 and the second gear 12 are fixedly connected to each other, and the first gear 11 and the second gear 12 are fixedly connected. A driving assembly 13 is installed on the first gear 11 and the second gear 12. A rotating block 16 is abutted against the top of the driving assembly 13. The outer side of the rotating block 16 is sleeved with a shell 14. The shell 14 and the first support seat 1 are fixedly connected. A connecting plate 15 is fixedly arranged between the two adjacent shells 14. The hot rod body 17 is placed between the two adjacent rotating blocks 16. When the device is in use, the first rotating shaft 10 can be driven to rotate by the second motor 9. The first rotating shaft 10 will drive the first rotating shaft 10 at the other positions to rotate through the synchronous belt 18. When the first rotating shaft 10 and the first gear 11 rotate, the second gear 12 will be driven to rotate in the opposite direction, thereby changing the overall angle of the driving assembly 13, so that the rotation direction of the rotating block 16 in the shell 14 changes, and the rotating block 16 can change with its own rotation direction, so that the hot rod body 17 can be transported forward or rotated around its own central axis, so as to change the detection position later. Example 2

[0033] like Figure 1-Figure 8 As shown, based on the same concept as the above-mentioned embodiment 1, this embodiment also proposes a hot bar material detection device based on machine vision.

[0034] In this embodiment, the adjustment component 3 includes a connecting plate 304 fixedly connected to the support ring 4, a fixing rod 302 is fixedly connected to the connecting plate 304, a fixing disk 303 is fixedly arranged on the top of the fixing rod 302, and a first electric push rod 301 is fixedly installed between the fixing disk 303 and the first support seat 1. When the first electric push rod 301 is extended, it pushes the fixing disk 303 upward, thereby driving the connecting plate 304 and the support ring 4 to move upward through the fixing rod 302, thereby changing the initial position of the support ring 4.

[0035] In this embodiment, the first electric push rod 301 passes through the interior of the connecting plate 304, and the connecting plate 304 is symmetrically distributed on both sides of the support ring 4. The central axis of the support ring 4 is flush with the central axis of the hot rod body 17. The height of the support ring 4 can be changed later so that the longitudinal axis of the support ring 4 overlaps with the central axis of the hot rod body 17, so that the detection position can be accurately adjusted during the subsequent surround detection of the hot rod body 17.

[0036] In this embodiment, the outer sides of the first rotating wheel 6 and the first rotating ring 7 are both provided with transverse convex grooves, the material of the first rotating wheel 6 is rubber material, and the infrared thermal imager 8 forms a rotating structure between the first rotating wheel 6 and the first rotating ring 7 and the support ring 4. The rotating structure on the device enables the first rotating wheel 6 to drive the first rotating ring 7 to rotate in the support ring 4, thereby making the infrared thermal imager 8 perform a circular motion. When the infrared thermal imager 8 surrounds the rod, it can detect different angles of the outer peripheral surface of the rod, thereby enhancing the detection effect of the device.

[0037] In this embodiment, a fixed block 19 is installed on the first rotating ring 7, and a second rotating ring 22 is rotatably installed in the fixed block 19. A third rotating ring 23 is fixedly arranged on the second rotating ring 22. Notches are arranged on the second rotating ring 22 and the third rotating ring 23. The second rotating ring 22 and the third rotating ring 23 with notches on the side facilitate the subsequent detection of whether the rod is deformed. The second rotating ring 22 and the third rotating ring 23 can rotate on the fixed block 19 so as to perform a downward pressure test on the cooled rod.

[0038] In this embodiment, the driving component 13 includes a support block 1301 fixedly connected to the first gear 11 and the second gear 12, and a third motor 1302 is fixedly installed on the support block 1301. A second rotating wheel 1303 is fixedly connected to the output shaft of the third motor 1302. The top of the second rotating wheel 1303 and the bottom of the rotating block 16 are abutted against each other. The third motor 1302 on the support block 1301 can drive the second rotating wheel 1303 to rotate, thereby driving the rotating block 16 to rotate. When the overall angle of the driving component 13 changes, the rotation direction of the rotating block 16 will also change synchronously, so that the device can switch between conveying rods and rotating rods on the rotating block 16.

[0039] In this embodiment, the second rotating wheel 1303 is provided with transverse convex grooves, the second rotating wheel 1303 is made of rubber, the upper and lower sides of the outer shell 14 are both open structures, the rotating block 16 is a spherical structure, the first gear 11 and the central axis of the second rotating wheel 1303 and the rotating block 16 above the first gear 11 are all on the same straight line, when the first gear 11 rotates and adjusts the angle of the second rotating wheel 1303, the middle position of the top of the second rotating wheel 1303 can maintain abutment with the rotating block 16, thereby ensuring stable operation of the device.

[0040] In this embodiment, the rotating block 16 and the shell 14 are evenly distributed on both sides of the first support seat 1, and the inner wall of the shell 14 and the outer wall of the rotating block 16 are in contact with each other. The shell 14 can ensure the stable rotation of the rotating block 16 and can change the movement mode of the hot rod after switching the rotation angle, thereby enhancing the practicability of the device.

[0041] In this embodiment, the thickness of the second rotating ring 22 is greater than that of the third rotating ring 23. A fourth motor 20 is installed on the fixed block 19. A third rotating wheel 21 is fixedly connected to the output shaft of the fourth motor 20. The top of the third rotating wheel 21 abuts against the second rotating ring 22. When the fourth motor 20 drives the third rotating wheel 21 to rotate, the third rotating wheel 21 can abut against the second rotating ring 22 to rotate, thereby driving the third rotating ring 23 to rotate, which is convenient for the subsequent press test on the cooling rod.

[0042] In this embodiment, the inner wall of the third rotating ring 23 is fixedly connected with the first pressure block 24, the second pressure block 26 and the third pressure block 27 in sequence in the counterclockwise direction. The shapes of the first pressure block 24, the second pressure block 26 and the third pressure block 27 are all different. The first pressure block 24 is fixedly connected with a protrusion 25. When it is necessary to perform a press test on the cooling rod, the third rotating ring 23 is first rotated to move the first pressure block 24 or the second pressure block 26 or the third pressure block 27 to directly above the rod. The height of the third rotating ring 23 can be changed subsequently to realize the function of pressing the rod by using pressure blocks of different shapes.

[0043] Specifically, the present invention is a hot bar material detection device based on machine vision, firstly, Figure 1-Figure 6 As shown, the first support seat 1 and the second support seat 2 are used to support the device as a whole, and the connecting plate 15 is used to connect multiple shells 14 to transport the hot rod body 17 between two adjacent groups of rotating blocks 16. The initial height of the support ring 4 is adjusted according to the diameter of the hot rod body 17. When the first electric push rod 301 is extended, it will push the fixed plate 303 upward, thereby driving the connecting plate 304 and the support ring 4 to move upward through the fixed rod 302, thereby changing the initial positions of the support ring 4 and the first rotating ring 7. When the central axis of the first rotating ring 7 coincides with the central axis of the hot rod body 17, the hot rod body 17 can be transported to the detection area. The first rotating shaft 10 is driven to rotate by the second motor 9, and the first rotating shaft 10 drives the first rotating shafts 10 at other positions to rotate through the synchronous belt 18. When the first rotating shaft 10 and the first gear 11 rotate, the second gear 12 is driven to rotate in the opposite direction, thereby changing the overall angle of the driving component 13. The third motor 1302 on the support block 1301 can drive the second rotating wheel 1303 to rotate, thereby driving the rotating block 16 to rotate. When the overall angle of the driving component 13 changes, the rotation direction of the rotating block 16 will also change synchronously, so that the device can switch between conveying rods and rotating rods on the rotating block 16. When the driving component 13 rotates to Figure 5When the angle is in the middle, the third motors 1302 on both sides drive the two second rotating wheels 1303 to rotate in the same direction to drive the rotating block 16 to rotate, so that the device can detect different positions of the hot bar in subsequent detection. When the central axes of the two adjacent second rotating wheels 1303 coincide, the second rotating wheels 1303 rotate to transport the hot bar forward. The rotating block 16 can change its own rotation direction to allow the hot bar body 17 to be transported forward or rotate around its own central axis, thereby switching between detecting different positions and transporting the hot bar.

[0044] like Figure 1 , Figure 5 , Figure 7 and Figure 8 As shown, when the device detects the hot rod, the first motor 5 on the support ring 4 drives the first rotating wheel 6 to rotate, thereby driving the first rotating ring 7 to rotate. When the first rotating ring 7 rotates, it can drive the infrared thermal imager 8 to make a circular motion, so that the device can perform a surrounding detection on one section of the hot rod. When the hot rod is cooled, the third rotating wheel 21 can be driven to rotate by the fourth motor 20. The third rotating wheel 21 can abut against the second rotating ring 22 to rotate, thereby driving the third rotating ring 23 to rotate. When it is necessary to perform a press test on the cooled rod, the third rotating ring 23 can rotate to move the first pressing block 24 or the second pressing block 26 or the third pressing block 27 to the top of the rod. Subsequently, the first electric push rod 301 can be shortened to move the third rotating ring 23 downward, so that the cooled hot rod can be pressed down by the protrusion 25 on the first pressing block 24 or the second pressing block 26 or the third pressing block 27 for a press test.

[0045] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A hot bar material detection device based on machine vision, comprising a first support seat (1), characterized in that: A second support seat (2) is provided on both sides of the first support seat (1); an adjustment assembly (3) is installed on the first support seat (1); a support ring (4) is provided on the adjustment assembly (3); a first motor (5) is fixedly installed on the support ring (4); a first rotating wheel (6) is fixedly installed on the output shaft of the first motor (5); a first rotating ring (7) is provided below the first rotating wheel (6); an infrared thermal imager (8) is installed on the first rotating ring (7); a second motor (9) is installed in the second support seat (2); a plurality of first rotating shafts (10) and second rotating shafts (28) are rotatably installed on the second support seat (2); the output shaft of the second motor (9) is connected to one of the first rotating shafts (10); a synchronous belt (18) is installed between two adjacent first rotating shafts (10); and the first A first gear (11) is connected to the top of the rotating shaft (10), and a second gear (12) is meshedly connected to the side of the first gear (11), the first gear (11) and the first rotating shaft (10) are fixedly connected, and the second gear (12) and the second rotating shaft (28) are fixedly connected, and a driving assembly (13) is installed on the first gear (11) and the second gear (12), and a rotating block (16) is abutted against the top of the driving assembly (13), and a shell (14) is sleeved on the outer side of the rotating block (16), and the shell (14) and the first supporting seat (1) are fixedly connected, and a connecting plate (15) is fixedly arranged between two adjacent shells (14), and a hot rod body (17) is placed between two adjacent rotating blocks (16), and the rotating block (16) is a spherical structure.

2. The hot bar material detection device based on machine vision according to claim 1 is characterized in that: The adjustment assembly (3) comprises a connecting plate (304) fixedly connected to the support ring (4), a fixing rod (302) fixedly connected to the connecting plate (304), a fixing plate (303) fixedly arranged on the top of the fixing rod (302), and a first electric push rod (301) fixedly installed between the fixing plate (303) and the first support seat (1).

3. The hot bar material detection device based on machine vision according to claim 2 is characterized in that: The first electric push rod (301) passes through the interior of the connecting plate (304); the connecting plate (304) is symmetrically distributed on both sides of the support ring (4); and the central axis of the support ring (4) is flush with the central axis of the hot rod body (17).

4. The hot bar material detection device based on machine vision according to claim 1 is characterized in that: The outer sides of the first rotating wheel (6) and the first rotating ring (7) are both provided with transverse convex patterns, the first rotating wheel (6) is made of rubber, and the infrared thermal imager (8) forms a rotating structure through the first rotating wheel (6) and the first rotating ring (7) and the support ring (4).

5. The hot bar material detection device based on machine vision according to claim 1 is characterized in that: A fixing block (19) is mounted on the first rotating ring (7), a second rotating ring (22) is rotatably mounted inside the fixing block (19), a third rotating ring (23) is fixedly mounted on the second rotating ring (22), and both the second rotating ring (22) and the third rotating ring (23) are provided with notches.

6. The hot bar material detection device based on machine vision according to claim 1 is characterized in that: The driving assembly (13) comprises a supporting block (1301) fixedly connected to the first gear (11) and the second gear (12); a third motor (1302) is fixedly mounted on the supporting block (1301); a second rotating wheel (1303) is fixedly connected to an output shaft of the third motor (1302); and a top of the second rotating wheel (1303) and a bottom of the rotating block (16) are in contact with each other.

7. The hot bar material detection device based on machine vision according to claim 6 is characterized in that: The second rotating wheel (1303) is provided with transverse convex patterns, the second rotating wheel (1303) is made of rubber, the upper and lower sides of the housing (14) are both open structures, and the first gear (11) and the central axis of the second rotating wheel (1303) above the first gear (11) and the rotating block (16) are all on the same straight line.

8. The hot bar material detection device based on machine vision according to claim 7 is characterized in that: The rotating block (16) and the outer shell (14) are evenly distributed on both sides of the first support seat (1), and the inner wall of the outer shell (14) and the outer wall of the rotating block (16) are in contact with each other.

9. The hot bar material detection device based on machine vision according to claim 5 is characterized in that: The thickness of the second rotating ring (22) is greater than that of the third rotating ring (23); a fourth motor (20) is mounted on the fixed block (19); a third rotating wheel (21) is fixedly connected to an output shaft of the fourth motor (20); and an upper portion of the third rotating wheel (21) abuts against the second rotating ring (22).

10. The hot bar material detection device based on machine vision according to claim 5, characterized in that: The inner wall of the third rotating ring (23) is fixedly connected in sequence along a counterclockwise direction with a first pressing block (24), a second pressing block (26) and a third pressing block (27); the shapes of the first pressing block (24), the second pressing block (26) and the third pressing block (27) are all different; and a protrusion (25) is fixedly connected to the first pressing block (24).

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