A laser track scanning system

Abstract

The present invention relates to the field of laser scanning technology, and in particular to a laser track scanning system, comprising: a workbench, a photosensitive plate arranged inside the workbench, a sliding frame slidably arranged on the workbench, and a scanning device arranged in the middle of the sliding frame, wherein a mounting slot is provided in the middle of the workbench, the photosensitive plate is installed in the mounting slot, and a sliding space is provided between the bottom of the photosensitive plate and the bottom of the mounting slot; a heat dissipation assembly is provided in the sliding space, and the heat dissipation assembly includes a fan, a telescopic tube, two heat dissipation pipes, and two connecting parts; a mounting opening is provided in the middle of the mounting slot, the fan is installed in the mounting opening, and forms an air flow from bottom to top; the telescopic tube is fixedly installed on the air guide port at the upper end of the fan, and the two heat dissipation pipes are symmetrically fixedly connected at both ends of the telescopic tube. The present invention can regulate the temperature of the photosensitive plate at the scanning position, thereby ensuring the sensitivity of the photosensitive plate.

Description

Technical Field

[0001] The present invention relates to the field of laser scanning technology, and in particular to a laser track scanning system. Background Art

[0002] Laser trajectory scanning achieves high-speed, high-precision processing or measurement by precisely controlling the spatial position and motion path of the laser beam. Its core lies in dynamically projecting laser energy along a predetermined trajectory in two-dimensional or three-dimensional space. It is widely used in industrial processing, 3D printing, medical cosmetology, lidar and other fields.

[0003] The patent with publication number CN105091745B discloses a laser track scanning system, including a photosensitive panel, a charging device, a processor, a two-axis driving device and a point laser emitter; the photosensitive panel is electrically connected to the charging device; the processor is connected to the photosensitive panel and the two-axis driving device; the point laser emitter is movably arranged above the photosensitive panel through the two-axis driving device.

[0004] Patent publication number CN119225003A discloses a high-speed laser scanning processing equipment, including a reflective imaging device, a first 4f system, a second 4f system, a polarizer group, a two-dimensional galvanometer, a laser, a Dammann grating, a Powell prism, and a control system. The laser is directly facing the center of the Dammann grating and the Powell prism, and the first 4f system is arranged on the output light path of the Dammann grating and the Powell prism. The above invention can produce multi-line parallel processing with high efficiency and low cost.

[0005] When collecting data through the photosensitive panel, long-term laser irradiation will cause heat accumulation. Since the photocomposite material is affected by temperature, the material curing rate changes nonlinearly, thereby affecting the sensitivity of the photosensitive panel. Summary of the Invention

[0006] The purpose of the present invention is to solve the shortcomings of the prior art that long-term laser irradiation will generate heat accumulation, and since the photocomposite material is affected by temperature, the material curing rate changes nonlinearly, thereby affecting the sensitivity of the photosensitive panel, and a laser track scanning system is proposed.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] A laser track scanning system includes: a workbench, a photosensitive plate disposed inside the workbench, a sliding frame slidably disposed on the workbench, and a scanning device disposed in the middle of the sliding frame, wherein a mounting groove is formed in the middle of the workbench, the photosensitive plate is mounted in the mounting groove, and a sliding space is provided between the bottom of the photosensitive plate and the bottom of the mounting groove;

[0009] A heat dissipation assembly is provided inside the sliding space, and the heat dissipation assembly includes a fan, a telescopic tube, two heat dissipation pipes, and two connecting pieces. A mounting opening is provided in the middle of the mounting slot, and the fan is mounted inside the mounting opening to form an air flow from bottom to top. The telescopic tube is fixedly mounted on the air guide port at the upper end of the fan, and the two heat dissipation pipes are symmetrically fixedly connected to the two ends of the telescopic tube. The two connecting pieces are symmetrically fixedly connected to the ends of the two heat dissipation pipes that are away from each other and are connected to the sliding frame.

[0010] A heat dissipation space is provided at the bottom of the photosensitive plate, and the heat dissipation pipe is arranged inside the heat dissipation space. The heat dissipation pipe is wavy in shape, and a plurality of heat dissipation strips are provided on the upper surface.

[0011] Preferably, the sliding frame includes two electromagnetic sliders, two telescopic side frames and a top frame. Two sliding grooves are symmetrically opened on both sides of the workbench. The two electromagnetic sliders are symmetrically slidably arranged inside the two sliding grooves. The two telescopic side frames are respectively fixedly connected to the electromagnetic sliders. The top frame is fixedly connected to the upper ends of the two telescopic side frames, and the scanning device is arranged below the top frame.

[0012] Preferably, the scanning device includes a reflective imaging component and a galvanometer component, the reflective imaging component is slidably mounted on a sliding frame, and the galvanometer component is arranged on the side of the reflective imaging component.

[0013] Preferably, the photosensitive plate includes a photoresistor layer and a substrate, the substrate is fixedly connected to the bottom side of the photoresistor layer, and the heat dissipation space is opened on the bottom side of the substrate.

[0014] Preferably, the connecting piece includes a fixed block and a connecting block, the connecting block is fixedly connected to the end of the heat dissipation pipe, the fixed block is fixedly connected to the side of the connecting block away from the heat dissipation pipe, and an air guide space connected to the heat dissipation pipe is opened inside.

[0015] Preferably, two cleaning components are symmetrically arranged between the two connecting blocks, and a scanning area is formed between the two cleaning components. The cleaning components are used to clean the surface of the photosensitive plate.

[0016] Preferably, the cleaning assembly includes two rotating seats, two connecting pipes, a dust suction pipe and an exhaust pipe. The two rotating seats are respectively rotatably installed on the two connecting blocks on both sides of the workbench. The connecting pipe is fixedly connected to the rotating seat, and the two connecting pipes are Z-shaped. The dust suction pipe is fixedly connected between the two connecting pipes, and the dust suction port is arranged at the bottom. The exhaust pipe is connected between the connecting block and the lower end of the fan.

[0017] Preferably, a cleaning strip is provided on one side of the two suction pipes away from each other. The cleaning strip is made of elastic material and is used for cleaning the surface of the photosensitive plate.

[0018] Preferably, a filter assembly is provided inside the air guide space, and the filter assembly is used to filter particles introduced into the air guide space by the cleaning assembly. The filter assembly includes a filter plate, a magnetic strip, a scraper strip and a plurality of magnetic blocks. The filter plate is fixedly installed at the position where the air guide space is connected to the exhaust pipe, and the magnetic strip is limitedly slidably provided on the side of the filter plate away from the exhaust pipe, and the scraper strip is fixedly connected to the side of the magnetic strip close to the filter plate. A plurality of the magnetic blocks are fixedly connected to the mounting groove, and the magnetic blocks are arranged at intervals, and the magnetic blocks have the same magnetism as the side close to the magnetic strip.

[0019] Preferably, a light shielding plate is vertically fixedly connected to the vacuum tube, and two symmetrically arranged light shielding plates are used for shading the scanning area.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. After the fan is started, air flows from bottom to top. Since the heat dissipation strips are located close to the photosensitive plate, the air is quickly ejected through the heat dissipation strips to cool down the plate, forming a heat dissipation area. This accelerates the rapid heat exchange at the bottom of the photosensitive plate and prevents the temperature from affecting the sensitivity of the plate. At the same time, the heat dissipation duct moves with the sliding frame, corresponding to the scanning device installed on the sliding frame. While the scanning device is working, the heat dissipation at the corresponding position of the photosensitive plate is completed, ensuring the effect of precise heat dissipation.

[0022] 2. The cleaning components are located on both sides directly below the scanning device. They can clean the area to be scanned before the scanning device scans. During cleaning, the suction force generated by the fan below and the suction port below the suction pipe quickly collect and clean particles and impurities on the photosensitive plate, ensuring that the scanning device will not be affected during the scanning process and improving the accuracy of the scanning trajectory.

[0023] 3. Before the object is placed on the photosensitive plate, the cleaning strip is driven by the sliding frame to move and clean the surface of the photosensitive plate to prevent debris from remaining on the surface of the photosensitive plate and ensure the accuracy of the photosensitive plate scanning track;

[0024] 4. The fan drives the heat dissipation component and the cleaning component at the same time, which can complete the cleaning of the photosensitive plate surface while completing the heat dissipation, optimizing the overall structure and meeting multiple usage requirements through the same power source;

[0025] 5. The magnetic strip will intermittently approach the magnetic block, and a repulsive force will be generated between the magnetic strip and the magnetic block, which will drive the magnetic strip to move upward. During the upward movement of the magnetic strip, the cleaning strip fixed on the magnetic strip will scrape the surface of the filter plate, thereby cleaning the particles stuck on the filter plate to prevent the particles from clogging the mesh and affecting the normal flow of air;

[0026] 6. By setting two shading plates on the vacuum tube, the entire scanning area can be blocked from light, which can reduce the impact of external light on the laser beam and thus improve the accuracy of laser scanning. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the front structure of a laser track scanning system proposed by the present invention;

[0028] Figure 2 This is a schematic diagram of the front structure of a sliding frame of a laser track scanning system proposed by the present invention;

[0029] Figure 3 A schematic diagram of the structure of a photosensitive plate of a laser track scanning system proposed by the present invention;

[0030] Figure 4 This is a schematic diagram of the cross-sectional structure of a workbench of a laser track scanning system proposed in the present invention;

[0031] Figure 5 This is a schematic diagram of the bottom structure of a heat dissipation component of a laser track scanning system proposed by the present invention;

[0032] Figure 6 This is a schematic diagram of the heat dissipation component structure of a laser track scanning system proposed by the present invention;

[0033] Figure 7 for Figure 4 Schematic diagram of the enlarged structure at A in the middle;

[0034] Figure 8 This is a schematic diagram of the light shielding plate structure of the laser track scanning system proposed by the present invention.

[0035] In the figure: 1. workbench; 2. photosensitive plate; 21. photoresistor layer; 22. substrate; 3. sliding frame; 31. electromagnetic slider; 32. telescopic side frame; 33. top frame; 4. scanning device; 41. reflective imaging component; 42. galvanometer component; 5. heat dissipation component; 51. fan; 52. telescopic tube; 53. heat dissipation duct; 54. connector; 541. fixed block; 542. connecting block; 6. cleaning component; 61. rotating seat; 62. connecting pipe; 63. dust suction pipe; 64. exhaust pipe; 7. cleaning strip; 8. filter component; 81. filter plate; 82. magnetic strip; 83. scraper strip; 84. magnetic block; 9. light shielding plate. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0037] The terms "upper", "lower", "left", "right", "middle" and "one" used in the present invention are only for the convenience of description and are not intended to limit the scope of the present invention. Changes or adjustments to their relative relationships should be regarded as within the scope of the present invention without substantially changing the technical content.

[0038] Reference Figures 1-8 A laser track scanning system includes: a workbench 1, a photosensitive plate 2 disposed inside the workbench 1, a sliding frame 3 slidably disposed on the workbench 1, and a scanning device 4 disposed in the middle of the sliding frame 3. A mounting groove is provided in the middle of the workbench 1, and the photosensitive plate 2 is mounted in the mounting groove, with a sliding space between the bottom of the photosensitive plate 2 and the bottom of the mounting groove;

[0039] A heat dissipation assembly 5 is provided inside the sliding space. The heat dissipation assembly 5 includes a fan 51, a telescopic tube 52, two heat dissipation pipes 53, and two connectors 54. A mounting opening is provided in the middle of the mounting slot. The fan 51 is mounted inside the mounting opening to form an upward air flow. The telescopic tube 52 is fixedly mounted on the air guide port at the upper end of the fan 51. The two heat dissipation pipes 53 are symmetrically fixedly connected to the two ends of the telescopic tube 52. The two connectors 54 are symmetrically fixedly connected to the ends of the two heat dissipation pipes 53 that are away from each other and are connected to the sliding frame 3.

[0040] A heat dissipation space is defined at the bottom of the photosensitive plate 2 , and the heat dissipation pipe 53 is disposed inside the heat dissipation space. The heat dissipation pipe 53 is wavy in shape, and a plurality of heat dissipation strips are defined on the upper surface.

[0041] In the embodiment of the above technical solution, since the laser scanning device 4 forms a line laser scan during the laser scanning process, long-term laser scanning may affect the changes of the material on the photosensitive plate 2, thereby affecting the scanning accuracy. It is necessary to control the temperature of the photosensitive plate 2. By providing a heat dissipation component 5 in the space below the photosensitive plate 2, the heat accumulated on the photosensitive plate 2 is absorbed to maintain the temperature of the photosensitive plate 2.

[0042] After the fan 51 is started, air flows from bottom to top. Since the heat dissipation strips are located close to the photosensitive plate 2, the air is quickly ejected through the heat dissipation strips to cool down the plate, forming a heat dissipation area. This accelerates the rapid heat exchange at the bottom of the photosensitive plate 2 and prevents the temperature from affecting the sensitivity of the plate 2.

[0043] At the same time, the heat dissipation pipe 53 will move with the sliding frame 3, thereby corresponding to the scanning device 4 set on the sliding frame 3. While the scanning device 4 is working, the heat dissipation of the corresponding position of the photosensitive plate 2 is completed, ensuring the effect of precise heat dissipation. The telescopic tube 52 will stretch with the movement of the heat dissipation pipe 53 to ensure the connection between the heat dissipation pipe 53 and the fan 51.

[0044] The present invention can regulate the temperature of the photosensitive plate 2 at the scanning position, thereby ensuring the sensitivity of the photosensitive plate 2.

[0045] The preferred technical solution in this embodiment is:

[0046] Reference Figure 2 The sliding frame 3 includes two electromagnetic sliders 31, two telescopic side frames 32 and a top frame 33. Two sliding grooves are symmetrically opened on both sides of the workbench 1. The two electromagnetic sliders 31 are symmetrically slidably arranged inside the two sliding grooves. The two telescopic side frames 32 are respectively fixedly connected to the electromagnetic sliders 31. The top frame 33 is fixedly connected to the upper ends of the two telescopic side frames 32. The scanning device 4 is arranged below the top frame 33.

[0047] When the position is adjusted by gears or wheels, a certain vibration will be generated, which will affect the smooth movement of the scanning device 4 on the top frame 33. By arranging electromagnetic sliders 31 on both sides, external impurities falling into the sliding groove are reduced, and the stable sliding of the electromagnetic slider 31 is ensured, thereby reducing the deviation of the sliding frame 3 during movement and ensuring the accuracy of the track scanning.

[0048] Reference Figure 2 The scanning device 4 includes a reflective imaging component 41 and a galvanometer component 42. The reflective imaging component 41 is slidably mounted on the sliding frame 3, and the galvanometer component 42 is arranged on the side of the reflective imaging component 41.

[0049] The photosensitive plate 2 includes a photoresistor layer 21 and a substrate 22 . The substrate 22 is fixedly connected to the bottom side of the photoresistor layer 21 , and the heat dissipation space is opened on the bottom side of the substrate 22 .

[0050] During the track scanning process, the laser emitter inside the reflective imaging component 41 emits a laser beam, which passes through the multiple emission mirrors inside the galvanometer component 42 to form a two-dimensional line laser, thereby improving the scanning effect.

[0051] The generated laser beam will perform laser scanning on the surface of the photosensitive plate 2, thereby drawing an invisible track record. The generated record will be recognized and saved by the processor, so that the scanned track can be recorded and used in a complete and detailed manner, ensuring the accuracy of processing or analysis using the track.

[0052] Reference Figure 5 and Figure 8 The connecting member 54 includes a fixing block 541 and a connecting block 542. The connecting block 542 is fixedly connected to the end of the heat dissipation pipe 53. The fixing block 541 is fixedly connected to the side of the connecting block 542 away from the heat dissipation pipe 53, and an air guide space communicating with the heat dissipation pipe 53 is opened inside.

[0053] Two cleaning components 6 are symmetrically arranged between the two connecting blocks 542. A scanning area is formed between the two cleaning components 6. The cleaning components 6 are used to clean the surface of the photosensitive plate 2.

[0054] The cleaning assembly 6 includes two rotating seats 61, two connecting pipes 62, a dust suction pipe 63 and an exhaust pipe 64. The two rotating seats 61 are rotatably mounted on the two connecting blocks 542 on both sides of the workbench 1 respectively. The connecting pipe 62 is fixedly connected to the rotating seat 61 and the two connecting pipes 62 are Z-shaped. The dust suction pipe 63 is fixedly connected between the two connecting pipes 62, and the dust suction port is set at the bottom. The exhaust pipe 64 is connected between the connecting block 542 and the lower end of the fan 51;

[0055] A cleaning strip 7 is provided on one side of the two suction pipes 63 away from each other. The cleaning strip 7 is made of elastic material and is used to clean the surface of the photosensitive plate 2.

[0056] After the laser beam is shot onto the photosensitive plate 2, if there are particles or debris on the upper side of the photosensitive plate 2, it will affect the information collection of the light beam by the photosensitive plate 2, thereby causing deviations in the trajectory and affecting the subsequent use of the trajectory. Therefore, before scanning the laser trajectory, it is necessary to clean the particles and impurities on the photosensitive plate 2 to ensure that the photosensitive plate 2 accurately collects the laser trajectory.

[0057] Since the cleaning components 6 are arranged on both sides directly below the scanning device 4, the position to be scanned can be cleaned before the scanning device 4 scans. During cleaning, the suction force generated by the fan 51 below is used, and the suction end of the fan 51 is connected to the exhaust pipe 64. The particles and impurities on the photosensitive plate 2 are quickly collected and cleaned through the suction port below the suction pipe 63, ensuring that the scanning device 4 will not be affected during the scanning process, thereby improving the accuracy of the scanning trajectory.

[0058] Since the thickness of different scanned objects is different, during the scanning process, in order to avoid contact with the object and cause the position of the object to shift, a rotating seat 61 is set to drive the connecting pipes 62 on both sides to rotate, thereby changing the position of the dust suction pipe 63, thereby adjusting according to the thickness of the object to avoid contact with the object.

[0059] Before placing objects, there may be debris on the surface of the photosensitive plate 2. When the objects are placed, these debris will be pressed under the photosensitive plate 2. The cleaning component 6 cannot clean these debris, thus affecting the accuracy of the scan. Therefore, before the objects are placed on the photosensitive plate 2, the cleaning bar 7 is driven by the sliding frame 3 to move and push the surface of the photosensitive plate 2 to clean it, so as to avoid debris from remaining on the surface of the photosensitive plate 2 and ensure the accuracy of the scanning track of the photosensitive plate 2.

[0060] The fan 51 drives the heat dissipation component 5 and the cleaning component 6 at the same time, so that the surface of the photosensitive plate 2 can be cleaned while the heat is dissipated, thereby optimizing the overall structure and meeting multiple usage requirements through the same power source.

[0061] Reference Figure 7 A filter assembly 8 is provided inside the air guide space, and the filter assembly 8 is used to filter the particles introduced into the air guide space by the cleaning assembly 6. The filter assembly 8 includes a filter plate 81, a magnetic strip 82, a scraper strip 83 and a plurality of magnetic blocks 84. The filter plate 81 is fixedly installed at the position where the air guide space is connected to the heat dissipation pipe 53, and the magnetic strip 82 is limitedly slidably set on the side of the filter plate 81 away from the heat dissipation pipe 53. The scraper strip 83 is fixedly connected to the side of the magnetic strip 82 close to the filter plate 81. A plurality of magnetic blocks 84 are fixedly connected to the mounting slot, and the magnetic blocks 84 are arranged at intervals. The magnetic properties of the magnetic block 84 are the same as the side close to the magnetic strip 82.

[0062] During the long-term particle adsorption and cleaning process, a large number of particles will enter the air guide space. If these particles are not filtered, they will enter the heat dissipation pipe 53. Due to the accumulation of particles, the heat dissipation effect of the heat dissipation pipe 53 will be affected. Therefore, it is necessary to filter the air entering the exhaust pipe 64 from the dust suction pipe 63 to reduce the accumulation of particles inside the heat dissipation pipe 53.

[0063] By setting a filter plate 81 inside the air guide space, particles are filtered in. However, long-term filtration will cause particles to accumulate on the filter plate 81, affecting the normal flow of air, thereby reducing the heat dissipation effect of the heat dissipation pipe 53 and reducing the suction force of the dust suction pipe 63. It is necessary to regularly clean the particles blocked on the filter plate 81.

[0064] As the connecting member 54 slides along with the sliding frame 3, the magnetic strip 82 will intermittently approach the magnetic block 84, and a repulsive force will be generated between the magnetic strip 82 and the magnetic block 84, which will drive the magnetic strip 82 to move upward. As the magnetic strip 82 moves upward, the cleaning strip 7 fixed on the magnetic strip 82 will scrape the surface of the filter plate 81, thereby cleaning the particles stuck on the filter plate 81 to prevent the particles from clogging the mesh and affecting the normal flow of air.

[0065] By setting up the magnetic strip 82 and the magnetic block 84, the cleaning speed can be adjusted according to the scanning speed, while reducing the use of energy. At the same time, the magnetic strip 82 is set to be a downward-slanted bar. When the particles accumulate on the magnetic strip 82, they will be transferred along the magnetic strip 82. In the process of moving up and down, the magnetic strip 82 accumulates and compacts the particles to prevent a large number of particles from flying up.

[0066] Reference Figure 8 A light shielding plate 9 is vertically fixedly connected to the dust suction pipe 63, and two symmetrically arranged light shielding plates 9 are used for shading the scanning area.

[0067] Since the scanning of the laser trajectory depends entirely on the irradiation of the laser beam, when the laser trajectory is affected by the passage of external light, it is easy to cause the laser beam to disperse, thereby affecting the accuracy of the laser planning scan. By setting two light shielding plates 9 on the vacuum tube 63, the entire scanning area can be blocked from light, which can reduce the influence of external light on the laser beam, thereby improving the accuracy of laser scanning.

[0068] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A laser track scanning system comprising: A workbench, a photosensitive plate disposed inside the workbench, a sliding frame slidably disposed on the workbench, and a scanning device disposed in the middle of the sliding frame, wherein a mounting groove is provided in the middle of the workbench, the photosensitive plate is mounted in the mounting groove, and a sliding space is provided between the bottom of the photosensitive plate and the bottom of the mounting groove; A heat dissipation assembly is provided inside the sliding space, and the heat dissipation assembly includes a fan, a telescopic tube, two heat dissipation pipes, and two connecting pieces. A mounting opening is provided in the middle of the mounting slot, and the fan is mounted inside the mounting opening to form an air flow from bottom to top. The telescopic tube is fixedly mounted on the air guide port at the upper end of the fan, and the two heat dissipation pipes are symmetrically fixedly connected to the two ends of the telescopic tube. The two connecting pieces are symmetrically fixedly connected to the ends of the two heat dissipation pipes that are away from each other and are connected to the sliding frame. A heat dissipation space is provided at the bottom of the photosensitive plate, and the heat dissipation pipe is arranged inside the heat dissipation space. The heat dissipation pipe is wavy in shape, and a plurality of heat dissipation strips are provided on the upper surface; The connecting piece includes a fixing block and a connecting block, wherein the connecting block is fixedly connected to the end of the heat dissipation pipe, the fixing block is fixedly connected to the side of the connecting block away from the heat dissipation pipe, and an air guide space communicating with the heat dissipation pipe is opened inside; Two cleaning components are symmetrically arranged between the two connecting blocks, and a scanning area is formed between the two cleaning components. The cleaning components are used to clean the surface of the photosensitive plate. The cleaning assembly includes two rotating seats, two connecting pipes, a dust suction pipe and an exhaust pipe. The two rotating seats are rotatably mounted on the two connecting blocks on both sides of the workbench. The connecting pipe is fixedly connected to the rotating seat and the two connecting pipes are Z-shaped. The dust suction pipe is fixedly connected between the two connecting pipes, and the dust suction port is set at the bottom. The exhaust pipe is connected between the connecting block and the lower end of the fan. A filter assembly is provided inside the air guide space, and the filter assembly is used to filter particles introduced into the air guide space by the cleaning assembly. The filter assembly includes a filter plate, a magnetic strip, a scraper strip and a plurality of magnetic blocks. The filter plate is fixedly installed at a position where the air guide space is connected to the exhaust pipe, and the magnetic strip is limitedly slidably provided on a side of the filter plate away from the exhaust pipe, and the scraper strip is fixedly connected to a side of the magnetic strip close to the filter plate. A plurality of magnetic blocks are fixedly connected to the mounting groove, and the magnetic blocks are arranged at intervals, and the magnetic properties of the magnetic block and the side close to the magnetic strip are the same.

2. The laser track scanning system according to claim 1, characterized in that: The sliding frame includes two electromagnetic sliders, two telescopic side frames and a top frame. Two sliding grooves are symmetrically opened on both sides of the workbench. The two electromagnetic sliders are symmetrically slidably arranged inside the two sliding grooves. The two telescopic side frames are respectively fixedly connected to the electromagnetic sliders. The top frame is fixedly connected to the upper ends of the two telescopic side frames. The scanning device is arranged below the top frame.

3. The laser track scanning system according to claim 1, characterized in that: The scanning device comprises a reflective imaging component and a galvanometer component. The reflective imaging component is slidably mounted on a sliding frame, and the galvanometer component is arranged on the side of the reflective imaging component.

4. The laser track scanning system according to claim 1, characterized in that: The photosensitive plate includes a photoresistor layer and a substrate. The substrate is fixedly connected to the bottom side of the photoresistor layer, and the heat dissipation space is opened on the bottom side of the substrate.

5. The laser track scanning system according to claim 1, characterized in that: A cleaning strip is provided on one side of the two suction pipes that are away from each other. The cleaning strip is made of elastic material and is used for cleaning the surface of the photosensitive plate.

6. The laser track scanning system according to claim 1, characterized in that: A light shielding plate is vertically fixedly connected to the dust suction pipe, and two symmetrically arranged light shielding plates are used for shielding the scanning area.

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