Magnetic metal foreign object removal device

Abstract

To provide a magnetic foreign metal substance removal device that is safe and has no unnecessary labor because it can check a monitor in a safe remote location and automatically check the adsorption status of magnetic foreign metal substances using AI, and also can remove magnetic foreign metal substances mechanically, making it very convenient and safe. [Solution] A magnetic metal foreign matter removal device for removing magnetic metal foreign matter used in a pipeline through which granular material passes comprises at least a magnet for attracting the magnetic metal foreign matter, a camera for capturing the state of the magnet, image data captured by the camera, and AI for analyzing the image data, and is characterized in that the AI ​​is trained to learn the image data in advance and determines whether or not the magnetic metal foreign matter has been attracted.

Description

[Technical Field]

[0001] The present invention relates to a magnetic foreign matter removal device that uses a magnet to attract and remove iron powder, stainless steel powder, and the like from pipelines. The device uses a camera, AI, and a monitor to monitor the degree of attraction of the magnetic foreign matter, reducing unnecessary effort and dangerous work, improving work efficiency, and enabling safe work. [Background technology]

[0002] In the past, when powders or granules were transported through iron or stainless steel pipelines, there was a problem of iron or stainless steel powder getting mixed in with the powder or granules due to contamination during the manufacturing process or due to the pipeline being scraped. This was a particularly serious problem when it got mixed in with food products.

[0003] Therefore, devices that use magnets to remove magnetic foreign matter have been developed, and for example, a prior art magnetic foreign matter removal device that uses a teardrop-shaped bar magnet has been disclosed (Reference 1). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Utility Model Registration No. 3216936 Summary of the Invention [Problem to be solved by the invention]

[0005] Conventional technology uses a drop-shaped bar magnet, which allows the powder particles to be uniformly and effectively attracted to the magnet and removed without accumulating in specific areas. However, because magnetic metal foreign matter removal devices are installed throughout the pipeline, with 10 to 30 in each pipeline, inspections are a problem. In particular, each magnetic metal foreign matter removal device requires removing the magnet from the device to check whether magnetic metal foreign matter is being attracted, which makes inspections extremely time-consuming and labor-intensive. Furthermore, because pipelines are often installed at high altitudes, even devices that do not attract magnetic metal foreign matter must be inspected at high altitudes, resulting in dangerous work on a daily basis. Furthermore, removing magnetic metal foreign matter requires manual labor by wiping with a clean cloth, which is labor-intensive.

[0006] The present invention solves these problems by providing a very convenient and safe magnetic metal foreign matter removal device that is safe and hassle-free because it can check a monitor in a safe remote location and automatically determine the adsorption status of magnetic metal foreign matter using AI, and also allows the magnetic metal foreign matter to be removed mechanically. [Means for solving the problem]

[0007] In order to achieve the above object, the magnetic foreign matter removal device according to claim 1 of the present invention is a magnetic foreign matter removal device for removing magnetic foreign matter used in a pipeline through which powder or granular material passes, and comprises a magnet for attracting the magnetic foreign matter, a camera for capturing an image of the state of the magnet, image data captured by the camera, an air injector for removing the powder or granular material adhering to the magnet with air; and a light for illuminating the magnet. At least The magnet is housed in a rod-shaped pipe, and the surface of the pipe is shot blasted. It is characterized by:

[0008] By adopting this configuration, the magnetic foreign matter removal device of the present invention is equipped with a magnet that attracts and removes magnetic foreign matter, and the state of magnetic foreign matter attracted to the magnet is captured by a camera and transmitted as image data. A computer receives the image data and displays it on a monitor. Therefore, by using the magnetic foreign matter removal device of the present invention, the state of the magnets of multiple magnetic foreign matter removal devices can be checked from a safe control room without moving. Therefore, there is no need to go out of your way to check magnetic foreign matter removal devices that do not have magnetic foreign matter attracted to them, and there is no need to perform unnecessarily dangerous work at high altitudes.

[0009] The magnetic foreign matter removal device according to claim 2 of the present invention is a magnetic foreign matter removal device for removing magnetic foreign matter used in a pipeline through which powder or granular material passes, and comprises a magnet that attracts the magnetic foreign matter, a camera that captures the state of the magnet, image data captured by the camera, and AI that analyzes the image data. an air injector for removing the powder or granular material adhering to the magnet with air; and a light for illuminating the magnet. The AI ​​is made to learn image data in advance, and the AI ​​determines whether or not the magnetic metal foreign matter is attracted. The magnet is housed in a rod-shaped pipe, and the surface of the pipe is shot blasted. It is characterized by the following.

[0010] By adopting this configuration, the magnetic metal foreign matter removal device of the present invention can have AI learn in advance image data of magnetic metal foreign matter adsorbed to a magnet. Then, the AI ​​can determine the degree of magnetic metal foreign matter adsorption based on image data of a magnet transmitted from a camera. If it is determined that magnetic metal foreign matter has been adsorbed to a magnet, the result can be displayed on a monitor to notify an administrator. Therefore, the administrator does not need to check the content of the image of the degree of adsorption of magnetic metal foreign matter adsorbed to the magnet, and can simply check the result displayed on the monitor, indicating whether or not there is adsorption, so there is no risk of magnetic metal foreign matter being overlooked.

[0011] Claims of the present invention 4 The magnetic metal foreign matter removal device according to claim 3In the magnetic metal foreign matter removal device described in 2. above, the camera is housed in a container, and the front surface of the lens of the camera in the container is a window made of transparent reinforced glass or transparent reinforced plastic. 5 The magnetic metal foreign matter removal device according to claim 4 In the magnetic metal foreign matter removal device described in the above item 1, the inside of the container is pressurized. Magnetic field Metallic foreign body removal device ,before The apparatus is characterized by including an air injector for removing the powder and granular material adhering to the magnet with air.

[0012] With these configurations, the magnetic metal foreign matter removal device of the present invention can prevent powder or magnetic metal foreign matter from colliding with the camera lens, causing scratches on the lens or damage to the powder or metal. Furthermore, because the interior of the container housing the camera is pressurized, powder or metal foreign matter does not enter the container. This prevents camera malfunction due to powder or metal foreign matter, and also prevents powder or metal foreign matter from being lost. Furthermore, checking whether magnetic metal or metal foreign matter is adsorbed to the magnet is generally performed after each batch of powder or metal material is completed. After each batch is completed, air (compressed air) is sprayed onto the magnet using an air injector to remove the powder or metal foreign matter that has accumulated on the magnet. Since the magnetic metal or metal foreign matter is adsorbed by the magnet, only the powder or metal foreign matter is removed from the magnet. Therefore, the image of the magnet displayed on the monitor is clear, eliminating misidentification and oversight.

[0013] The magnetic metal foreign matter removal device according to claim 6 of the present invention is 3 In the magnetic metal foreign matter remover described in the above, the magnet is a neodymium magnet or a samarium-cobalt magnet.

[0014] By adopting this configuration, the magnetic metal foreign matter removal device of the present invention uses neodymium magnets or samarium-cobalt magnets, which have strong magnetic properties. Furthermore, samarium-cobalt magnets can be used up to approximately 350°C, so they can be used in pipes that handle high-temperature powders or particles. This ensures that magnetic metal foreign matter can be reliably attracted to the magnet.

[0015] The present invention Magnetic field Metallic foreign body removal device ,before The invention is characterized by including a light for illuminating the neodymium magnet or the samarium-cobalt magnet. Magnetic field Metallic foreign body removal device ,before The neodymium magnet or the samarium-cobalt magnet is housed in a rod-shaped pipe, and the surface of the pipe is shot-blasted.

[0016] With these configurations, the magnetic metal foreign matter removal device of the present invention can brightly illuminate neodymium magnets or samarium-cobalt magnets with lighting, even in dark pipelines. This allows for reliable visual confirmation of the degree to which magnetic metal foreign matter is attracted to the neodymium magnets. Furthermore, because the neodymium magnets or samarium-cobalt magnets are housed in rod-shaped stainless steel pipes and the surfaces of the pipes are shot-blasted, the surface of the stainless steel pipes does not cause diffuse reflections from the lighting. This allows for reliable visual confirmation of magnetic metal foreign matter.

[0017] Claims of the present invention 3 The magnetic metal foreign matter removal device according to claim 1 or 2 In the magnetic metal foreign matter removal device described in , the pipe has a non-magnetic portion at one end, and the other portion is a magnetic magnetic portion, a sieve ring is provided above the foreign matter collection section of the magnet portion, and barrier plates that inhibit the movement of the sieve ring are provided at both ends of the foreign matter collection section, and as the pipe moves, the sieve ring slides on the pipe and the magnetic metal foreign matter that has been attracted to the pipe is sieved off by the sieve ring.

[0018] By adopting this configuration, the magnetic foreign matter removal device of the present invention has a nonmagnetic portion at one end of a rod-shaped pipe, and a sieve ring is fitted above the foreign matter collection section of the magnet unit. In addition, two barrier plates are provided at both ends of the foreign matter collection section to prevent the sieve ring from moving. The rod-shaped pipe, to which the magnetic foreign matter is attracted, is slid toward the sieve ring, causing the pipe and the sieve ring to move together. As the pipe continues to move, the sieve ring collides with and catches on one of the barrier plates, stopping the sieve ring's movement, but the rod-shaped pipe continues moving. Thus, the magnetic foreign matter slides along the surface of the pipe due to the sieve ring. When the magnetic foreign matter reaches the nonmagnetic portion at one end, it is released from the magnetic force of the neodymium magnet or samarium-cobalt magnet inside the pipe and falls into the foreign matter collection section, where it is removed. This series of operations allows the magnetic foreign matter to be removed from the pipe. Furthermore, when AI is used, the process from removing magnetic metal foreign matter after one batch is completed to starting the next batch can be carried out fully automatically, making it safe and hassle-free.

[0019] After the magnetic metal foreign matter has been removed, the sieve ring moves to one end together with the rod-shaped pipe, and then the sieve ring is caught by another barrier plate, stopping its movement, but the rod-shaped pipe continues to move and returns to its original position. [Effects of the Invention]

[0020] From claim 1 of the present invention 6According to the magnetic foreign matter removal device described in the document, the status of the magnets of multiple magnetic foreign matter removal devices can be checked from a safe control room without moving. Therefore, if no magnetic foreign matter is adsorbed, there is no need to go and check the magnetic foreign matter removal device unnecessarily, and there is no need to perform dangerous high-altitude work. Furthermore, lighting can be used to brightly illuminate the magnets. Furthermore, the surface of the stainless steel pipe containing the magnet is shot-blasted, so the pipe surface does not reflect light diffusely. This results in clear images, enabling reliable AI analysis, and the clear image displayed on the monitor eliminates misidentification and oversight. Furthermore, the interior of the container housing the camera is pressurized, preventing powder and granular matter from entering the container. This prevents camera damage due to powder and granular matter loss and prevents powder and granular matter loss. Furthermore, since the magnetic foreign matter can be automatically removed, there is no need to go to the magnetic foreign matter removal device, making the process safe and hassle-free. [Brief explanation of the drawings]

[0021] [Figure 1] 1 is a schematic perspective view of a magnetic metallic foreign matter removal device according to an embodiment of the present invention; [Figure 2] 1 is a schematic cross-sectional front view of a magnetic metallic foreign matter removal device according to an embodiment of the present invention; [Figure 3] 1 is a schematic cross-sectional side view of a magnetic metallic foreign matter removal device according to an embodiment of the present invention; [Figure 4] 1 is a schematic plan view of a magnetic metallic foreign matter removal device according to an embodiment of the present invention; [Figure 5] FIG. 1A is a schematic plan view of a magnetic metal foreign matter removal device according to an embodiment of the present invention, showing the device in normal operation, and FIG. 1B is a schematic plan view showing the device during foreign matter removal. [Figure 6] FIG. 2 is a flow diagram showing a method of using a magnetic metal removal device according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0022] As shown in Figure 1, a magnetic metal foreign matter removal device 1 according to the present invention comprises at least a magnet 2 for attracting magnetic metal foreign matter, a camera 3 for capturing images of the magnetic metal foreign matter attracted to the magnet, and image data captured by the camera. The image data is then displayed on a computer monitor, and the image data is used to determine whether or not magnetic metal foreign matter has been attracted using AI.

[0023] The rod-shaped magnets 2 are rod-shaped pipes with neodymium or samarium-cobalt magnets inside. Each consists of a magnetic section 2-1 that attracts magnetic metal foreign matter and a non-magnetic section 2-2. The rod-shaped pipes are preferably made of metal, preferably stainless steel with a thickness of 0.1 to 0.5 mm. As shown in Figure 5, the magnetic section 2-1 extends from the end of the strainer ring 8 to just past the wall on the opposite side of the pipe 10, while the non-magnetic section 2-2 is located at the other end. The surface of the rod-shaped magnet 2 pipe is shot-blasted to give it a matte finish. Therefore, even when the light 6 is shone on the rod-shaped magnet 2, the surface of the rod-shaped magnet 2 does not scatter light, resulting in clear image data captured by the camera 3. This allows for reliable assessment of the degree of attraction of magnetic metal foreign matter. The magnetic section 2-1 is preferably made of neodymium or samarium-cobalt magnets 2, due to their strong magnetic force. Samarium-cobalt magnets can be used up to about 350°C, making them suitable for use in high-temperature environments. Furthermore, although it depends on the size of the pipe 10, if the pipe is about 150 mm square, it is preferable to provide two rows of rod-shaped magnets 2, with three magnets on the upper row and two magnets on the lower row, so that magnetic metal foreign matter can be reliably attracted and the degree to which the magnetic metal foreign matter is attracted to the magnets 2 can be reliably monitored using the upper and lower cameras 3.

[0024] As shown in Figures 2 and 3, cameras 3 are installed in two tiers within the pipe 10, one above and one below the magnet 2. For example, if there are three rod-shaped magnets 2 installed in two tiers on the upstream side and two on the downstream side, two cameras 3 on the upstream side are installed upstream of the rod-shaped magnets 2 and positioned directly above the downstream rod-shaped magnets 2. Similarly, three cameras 3 on the downstream side are installed below the rod-shaped magnets 2 and positioned directly below the upstream rod-shaped magnets 2. This arrangement allows the upstream and downstream cameras 3 to reliably capture the surface condition of the rod-shaped magnets 2 without any blind spots. The cameras 3 are also fixed by the cable pipe 3-1, either suspended from above or supported from below. The image data captured by the cameras 3 is transmitted to a computer via wiring installed within the cable pipe 3-1, where it is displayed as image data on a monitor or analyzed and processed by AI.

[0025] Container 4 is a container for housing camera 3, and the front of the lens of camera 3 is a window made of tempered glass or reinforced plastic. Container 4 has no gaps and is pressurized inside, so granules or powder passing through pipe 10 cannot enter container 4. Therefore, the lens of camera 3 and the inside of the window do not become dirty, allowing camera 3 to capture clear images. Accumulated granules or powder can be blown off the outside of window 4-1 of container 4 using air injector 5. Furthermore, since granules, powder, and magnetic metal foreign objects do not come into contact with camera 3, breakdown of camera 3 can be prevented. Furthermore, loss of granules or powder passing through pipe 10 can be eliminated.

[0026] After one batch is completed, the air sprayer 5 can blow away the particles and powder that have accumulated on the bar magnet 2. As a result, only the magnetic metal foreign matter attracted by magnetic force remains on the bar magnet 2, and a clear image of the bar magnet 2 can be captured by the camera 3. In addition, the particles and powder that have accumulated on the window 4-1 of the container 4 can be blown away.

[0027] The lighting 6 illuminates the magnet 2 from both the upstream and downstream sides of the bar magnet 2. This makes it bright even inside the dark pipe 10, making the image data captured by the camera 3 clearer and allowing the degree to which the bar magnet 2 is attracting magnetic metal foreign matter to be reliably determined.

[0028] Without AI, the manual foreign object remover 7 checks the image data captured by the camera 3, and if it detects the presence of magnetic metallic foreign objects, it turns on the operation switch of the foreign object remover 7. Then, as shown in Figure 5, the bar magnet 2 slides from the pipe 10 toward the foreign object collector 7-1. The sieve ring 8 and magnetic metallic foreign objects slide along with the bar magnet 2, but the sieve ring 8 abuts against the barrier plate 8-1 in the direction of travel, stopping the sliding of the sieve ring 8. The bar magnet 2 continues to slide, causing the sieve ring 8 to slide over the bar magnet 2. Therefore, the magnetic metallic foreign objects abut against the sieve ring 8, causing them to slide over the bar magnet 2 at the sieve ring 8 position. Then, as shown in Figure 5(b), when the magnetic metallic foreign objects move from the magnetic portion 2-1 of the bar magnet 2 to the non-magnetic portion 2-2, the magnetic attraction ceases, and the magnetic metallic foreign objects fall into the foreign object collector 7-1 and are collected. After that, the bar magnet 2 slides in the opposite direction together with the sieve ring 8, but the sieve ring 8 comes into contact with the barrier plate 8-1 on the pipe 10 side, stopping the sliding of the sieve ring 8. After that, the bar magnet 2 continues to slide, so the sieve ring 8 slides on the bar magnet 2 and returns to its original position. Note that the barrier plate 8-1 only needs to stop the sliding of the sieve ring 8, and since there is a gap between it and the bar magnet 2 that allows magnetic metallic foreign matter to pass through and the barrier plate 8-1 is not in contact with the bar magnet 2, magnetic metallic foreign matter will not get caught on the barrier plate 8-1 and fall.

[0029] When AI analysis is performed on the foreign matter remover 7, if the AI ​​determines that magnetic metallic foreign matter has been adsorbed based on the image data captured by the camera 3, the operation switch of the foreign matter remover 7 is automatically turned on. Then, as shown in Figure 5, the bar magnet 2 slides from the pipe 10 toward the foreign matter collection section 7-1. The sieve ring 8 and magnetic metallic foreign matter also slide along with the bar magnet 2, but the sieve ring 8 comes into contact with the dam plate 8-1 in the direction of travel, stopping the sliding of the sieve ring 8. The bar magnet 2 continues to slide, so the sieve ring 8 slides on the bar magnet 2. Therefore, the magnetic metallic foreign matter comes into contact with the sieve ring 8 and slides on the bar magnet 2 at the position of the sieve ring 8. Then, as shown in Figure 5(b), when the magnetic metal foreign matter moves from the magnetic portion 2-1 of the bar magnet 2 to the non-magnetic portion 2-2, the magnetic attraction is lost and the magnetic metal foreign matter falls into the foreign matter collection section 7-1 and is collected. The bar magnet 2 then automatically slides in the opposite direction together with the sieve ring 8, but the sieve ring 8 comes into contact with the dam plate 8-1 on the pipe 10 side, stopping the sliding of the sieve ring 8. As the bar magnet 2 continues to slide, the sieve ring 8 slides on the bar magnet 2 and returns to its original position.

[0030] The AI ​​is trained by previously capturing image data of powder or particles adsorbed to the bar magnet 2, and is able to determine whether or not magnetic metal foreign matter is present in the image data captured by the camera 3. If it determines that magnetic metal foreign matter has been adsorbed, it automatically activates the foreign matter remover 7, which uses a threshing ring 8 to remove the magnetic metal foreign matter adsorbed to the bar magnet 2, and after removal, it can automatically return the bar magnet 2 to its original state.

[0031] Next, an example of a manufacturing method for the magnetic foreign matter removal device 1 according to the present invention is described. A predetermined number of rod magnets 2 are manufactured. Each rod magnet 2 is a rod-shaped pipe with a magnetic portion 2-1 containing a predetermined length of neodymium magnet and a predetermined length of non-magnetic portion 2-1 without a magnet. The surface of the rod magnets 2 is then shot-blasted to remove any gloss. A foreign matter removal machine 7 is installed at a predetermined position in the piping 10. The foreign matter removal machine 7 includes a foreign matter collection unit 7-1, a compressed air-operated power source 9, a number of sieving rings 8 equal to the number of rod magnets 2, and two dam plates 8-1. A predetermined number of containers 4 containing cameras 3 are attached to the cable pipe 3-1 at predetermined positions upstream and downstream of the foreign matter removal machine. Finally, lights 6 and air injectors 5 are installed at predetermined positions upstream and downstream of the foreign matter removal machine to complete the magnetic foreign matter removal device 1.

[0032] An example of how to use the foreign matter removal device 1 according to the present invention will be described with reference to FIG. 6. In a factory where powder is sent through a pipe 10, one batch of work is completed. Once the completion of one batch of work is confirmed, the light 6 and air injector 5 are turned on in the control room, and the powder accumulated on the bar magnet 2 is blown off with high-pressure air. Image data of the neodymium magnet 2 captured by the camera 3 is then sent to a computer in the control room, where the image is displayed on a monitor. Because the surface of the bar magnet 2 is blast-shot processed, the surface of the bar magnet 2 does not diffusely reflect the light from the light source, allowing for reliable assessment of the degree of magnetic metal foreign matter adhesion. When magnetic metal foreign matter adhesion is detected, the foreign matter removal machine 7 is activated, and the magnetic metal foreign matter adsorbed to the bar magnet 2 is removed by the threshing ring 8 of the foreign matter removal machine 7. The bar magnet 2 is then returned to its original position, and the next batch of work is carried out.

[0033] Another example of how to use the foreign matter removal device 1 according to the present invention will be similarly described with reference to FIG. 6 . In a factory where powder is transported through a pipe 10, one batch of work is completed. After confirming the completion of one batch of work, the control room switches on the light 6 and air injector 5, and the powder accumulated on the bar magnet 2 is blown off with high-pressure air. Image data of the bar magnet 2 captured by the camera 3 is then sent to a computer in the control room, and the image data is evaluated by AI based on accumulated images of magnetic metal foreign matter adsorption. Because the surface of the bar magnet 2 is blast-shot processed, the surface of the bar magnet 2 does not diffusely reflect the light from the light source, allowing for reliable evaluation of the degree of magnetic metal foreign matter adsorption. If the AI ​​determines that magnetic metal foreign matter has been adsorbed, it automatically activates the foreign matter removal machine 7, and the magnetic metal foreign matter adsorbed to the bar magnet 2 is removed by the threshing ring 8 of the foreign matter removal machine 7. The bar magnet 2 is then automatically returned to its original position, completing the work. Then, the next batch of work is performed.

[0034] By using the foreign matter removal device 1 according to the present invention, the status of the magnets 2 of multiple magnetic foreign matter removal devices 1 can be checked from a safe control room without moving. Therefore, there is no need to go out of your way to check magnetic foreign matter removal devices 1 that do not have magnetic foreign matter attached, and there is no need to perform dangerous high-altitude work. Furthermore, the lighting 6 can brightly illuminate the bar magnets 2. Furthermore, because the surfaces of the bar magnets 2 are shot-blasted, the lighting 6 does not cause diffuse reflections from the surfaces of the bar magnets 2. Therefore, the image displayed on the monitor is clear, eliminating misidentification and oversight. Furthermore, because the interior of the container 4 housing the camera 3 is pressurized, powder and granular matter cannot enter the container 4. Therefore, damage to the camera 3 due to powder and granular matter can be prevented, and powder and granular matter loss can be prevented. Furthermore, because AI is used to determine the degree of attachment of magnetic foreign matter, there is no oversight of magnetic foreign matter attachment. Furthermore, since the magnetic metal foreign matter can be automatically removed, there is no need to go to the magnetic metal foreign matter removal device 1, making the work safe and time-saving. [Industrial Applicability]

[0035] It can be widely used in the field of removing magnetic foreign matter. [Explanation of symbols]

[0036] 1:Magnetic metal foreign matter removal device 2: Bar magnet 2-1: Magnetic part 2-2: Non-magnetic part 3: Camera 3-1: Cable conduit 4: Container 4-1: Window 5: Air injector 6: Lighting 6-1: Tempered glass 7: Foreign body removal machine 7-1: Foreign body collection unit 8: Sieve ring 8-1: Weir board 9: Power part 10: Piping

Claims

1. A magnetic foreign metal matter removal device for removing magnetic metal foreign matter used in a pipeline through which powder or granular material passes, comprising at least a magnet for attracting the magnetic foreign metal matter, a camera for capturing an image of the state of the magnet, image data captured by the camera, a monitor for displaying the image data, an air injector for removing the powder or granular material adhering to the magnet with air, and a light for illuminating the magnet, wherein the magnet is housed within a rod-shaped pipe and the surface of the pipe has been shot-blasted.

2. A magnetic foreign metal removal device for removing magnetic metal foreign matter used in a pipeline through which powder or granular material passes, comprising at least a magnet for attracting the magnetic foreign metal matter, a camera for capturing an image of the state of the magnet, image data captured by the camera, AI for analyzing the image data, an air injector for removing the powder or granular material adhering to the magnet with air, and a light for illuminating the magnet, wherein the AI ​​is trained to learn the image data in advance and determines whether or not the magnetic foreign metal matter has been attracted, and the magnet is housed within a rod-shaped pipe, the surface of the pipe being shot-blasted.

3. The magnetic metal foreign matter removal device of claim 1 or 2, characterized in that the pipe has a non-magnetic portion at one end and a magnetic portion at the other end, a sieve ring above the foreign matter collection section of the magnet portion, and barrier plates that inhibit the movement of the sieve ring are provided at both ends of the foreign matter collection section, so that as the pipe moves, the sieve ring slides over the pipe and the magnetic metal foreign matter that has been attracted to the pipe is sieved off by the sieve ring.

4. 4. A magnetic metal foreign matter removal device according to claim 3, wherein the camera is housed in a container, and the front of the lens of the camera in the container is a window made of transparent tempered glass or transparent reinforced plastic.

5. 5. The magnetic foreign metal material removal device according to claim 4, wherein the inside of the container is pressurized.

6. 4. The magnetic foreign matter remover according to claim 3, wherein the magnet is a neodymium magnet or a samarium-cobalt magnet.

Images