Multi-layer magnetic suction type filtering device for modularized linkage dust collection work station

Abstract

The invention relates to the technical field of filtering, in particular to a multi-layer magnetic suction type filtering device for a modular linkage dust collection workstation, which comprises a shell, a hopper, an air inlet pipe, an air speed sensor, a longitudinal moving assembly, an air outlet pipe, a transverse moving assembly, a hydraulic cylinder, a longitudinal magnetic part and a transverse magnetic part, the air inlet pipe is connected to the lower end of the left side of the shell, the air speed sensor is connected to an inner cavity of the air inlet pipe, the longitudinal moving assembly is connected to the rear side of the shell, the air outlet pipe is connected to the upper side of the shell, the transverse moving assembly array is connected to the front side of the shell, and the hydraulic cylinder is connected to the rear side of the shell. The output end of the hydraulic cylinder is connected with the longitudinal moving assembly, the longitudinal magnetic piece array is connected to the front side of the longitudinal moving assembly, and the transverse magnetic piece array is connected to the rear side of the transverse moving assembly. The magnetic field intensity of the windward side of the magnetic bar is changed by changing the arrangement position of the magnetic bar, and the filtering effect of the magnetic bar on large scrap iron is effectively improved.

Description

Technical Field

[0001] The present invention relates to the field of filtration technology, in particular to a multi-layer magnetic filtration device for a modular linked dust collection workstation. Background Art

[0002] To meet the demands of environmentally friendly construction projects, specialized equipment for solid waste pollution prevention and air filtration is used during mechanical grinding processes. Dust collection stations are one such type of equipment. Dust collection stations effectively collect and filter the dust generated during the mechanical grinding process through cartridge filtration technology. Multiple filter devices can be installed to filter different impurities from the dust during the processing phase. Magnetic filters are a key method for filtering iron filings generated during the processing phase.

[0003] The magnetic filter mainly filters by the magnetic force of the magnetic rod. By setting the magnetic plate array in the chamber and passing the powder containing iron chips through the chamber, the magnetic force of the magnetic rod will pull the iron chips to be adsorbed on the surface of the magnetic rod, thereby achieving filtration. Since the iron chips generated in the rough processing stage are large, a larger airflow is required to absorb the iron chips. The larger airflow will give the iron chips a stronger power, making the iron chips move faster, and a strong magnetic rod is needed to pull the iron chips for adsorption. However, during fine processing, since the iron chips are small, in order to avoid the strong airflow causing the small iron chips to move too fast, making it difficult for the magnetic rod to capture the small iron chips, the flow rate of the adsorbed airflow will be reduced, and the magnetic force of the strong magnetic rod will cause the iron chips to accumulate on the magnetic rod near the air inlet of the filter device. After a period of use, most of the iron chips are accumulated on the magnetic rod at the air inlet, which will affect the airflow and reduce the filtration efficiency.

[0004] In response to the above problems, the existing technology has proposed some solutions. For example, the modular design of the magnetic filter device is divided into strong magnetic and weak magnetic types, which respectively cope with rough processing and fine processing in the processing links. During use, the strong magnetic and weak magnetic modules of the magnetic filter device can be replaced according to different processing links. However, in order to reduce the error of the workpiece surface, the grinding process is usually completed in succession during a single clamping process. Rough processing and fine processing are more frequent in the processing of some small workpieces, and replacing the strong magnetic and weak magnetic modules takes a certain amount of time, which affects the processing efficiency.

[0005] To this end, a multi-layer magnetic filtration device for a modular linked dust collection workstation is proposed. Summary of the Invention

[0006] The purpose of the present invention is to provide a multi-layer magnetic filtration device for a modular linked dust collection workstation, which solves the problem of needing to replace magnetic bars of different strengths when adsorbing iron filings of different sizes, thereby affecting processing efficiency. By changing the arrangement position of the magnetic bars, the magnetic bars are switched from a dispersed arrangement to a Halbach array, thereby changing the magnetic field strength on the windward side of the magnetic bars, effectively improving the filtering effect of the magnetic bars on large iron filings.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A multi-layer magnetic filtering device for a modular linked dust collection workstation comprises a shell, a hopper, an air inlet pipe, a wind speed sensor, a longitudinal movement component, an air outlet pipe, a transverse movement component, a hydraulic cylinder, a longitudinal magnetic component and a transverse magnetic component, the hopper is connected to the lower side of the shell, the air inlet pipe is connected to the lower end of the left side of the shell, the wind speed sensor is connected to the inner cavity of the air inlet pipe, the longitudinal movement component is connected to the rear side of the shell, the air outlet pipe is connected to the upper side of the shell, the transverse movement component array is connected to the front side of the shell, the hydraulic cylinder is connected to the rear side of the shell, and the output end of the hydraulic cylinder is connected to the longitudinal movement component, the longitudinal magnetic component array is connected to the front side of the longitudinal movement component, and the transverse magnetic component array is connected to the rear side of the transverse movement component. When the wind speed reaches a specified value, the hydraulic cylinder drives the longitudinal magnetic component to move up and insert into the transverse magnetic component through the longitudinal movement component, and when the longitudinal magnetic component moves up, the transverse movement component drives the transverse magnetic component to avoid the longitudinal magnetic component.

[0009] Through the above scheme, the wind speed sensor starts the hydraulic cylinder according to the air flow velocity, and then drives the longitudinal magnetic part to move upward through the longitudinal movement component. The upward-moving longitudinal magnetic part is interspersed in the transverse magnetic part, thereby forming a strong magnetic surface on the wind-inducing surface, which effectively improves the adsorption effect of large iron filings. When the wind speed is not reached, the longitudinal magnetic part and the transverse magnetic part are separated, thereby reducing the magnetic force and realizing the adsorption of small iron filings.

[0010] Preferably, the longitudinal movement assembly includes an adjustment plate, a mounting frame and a fixed block, the adjustment plate is connected to the rear side of the outer shell, and the adjustment plate is connected to the output end of the hydraulic cylinder, the mounting frame array is arranged on the rear side of the adjustment plate, the fixed block array is connected to both sides of the mounting frame, and the longitudinal magnetic component is connected to the fixed block.

[0011] Through the above scheme, the electric push rod can drive the magnetic bar to move up and down, thereby adjusting the relative position of the magnetic bar and the magnetic rod. The magnetic bar is connected to both sides of the mounting frame through a fixed block, and then by moving the mounting frame, the magnetic bar can be driven to move back and forth, so that the adjustment plate scrapes across the adsorption surface of the magnetic bar, thereby effectively removing iron filings on the surface of the magnetic bar. The electric push rod is located on the lower side of the adjustment plate, close to the wind speed sensor, which is convenient for wiring.

[0012] Preferably, the longitudinal magnetic component includes a magnetic rod and an isolation rod, the magnetic rod passes through the adjustment plate and is connected to the front end of the fixed block, the isolation rod is connected to the front end of the magnetic rod, the magnetization direction of the magnetic rod is the up and down direction, the two magnetic rods in the same row on a single mounting frame form a longitudinal magnetic group, and the lower sides of the two magnetic rods in the longitudinal magnetic group are opposite poles.

[0013] With the above solution, the front end of the magnetic rod is connected to the isolation rod, so when the magnetic rod is pulled out through the mounting frame, the iron filings can be collected on the isolation rod. The isolation rod has no magnetism, making it easier to remove the iron filings.

[0014] Through the above scheme, the transverse movement assembly includes a pressure frame, a positioning column, a tension spring, a sliding column and a limit plate. The pressure frame array is connected to the front side of the inner cavity of the shell. The positioning column is arranged between two adjacent pressure frames, and the positioning column is slidably connected to the shell. Multiple tension springs are respectively connected to both sides of the positioning column. The sliding column is connected to the end of the tension spring away from the positioning column. The limit plate is connected to the front end of the positioning column.

[0015] Through the above solution, the transverse magnetic part can be pulled out through the transverse movement component, thereby removing the iron filings on the surface of the transverse movement component.

[0016] Preferably, the transverse magnetic component includes a central magnetic rod, a side magnetic rod and an isolation rod, the central magnetic rod and the side magnetic rod are respectively connected to the rear sides of the positioning column and the sliding column, and multiple isolation rods are respectively connected to the rear sides of the central magnetic rod and the side magnetic rod, the magnetization direction of the central magnetic rod and the side magnetic rod is left and right, the central magnetic rod and the side magnetic rod in the same row on a single limiting plate form a transverse magnetic group, and the adjacent surfaces of the central magnetic rod and the side magnetic rod in the same transverse magnetic group are the same pole.

[0017] Through the above solution, the rear ends of the middle magnetic rod and the side magnetic rod are connected to the isolation rod, so when the middle magnetic rod and the side magnetic rod are pulled out through the limit plate, the iron filings can be gathered on the isolation rod and then removed.

[0018] Preferably, the pressure frame includes a slide plate and a baffle, the slide plate is connected to the rear side of the shell, the baffle is connected to the rear side of the slide plate, the lower end of the baffle is inclined close to the positioning column, and the front end face of the isolation rod is located between the front and rear end faces of the baffle.

[0019] Through the above solution, when the isolation rod moves upward, it will contact the baffle, thereby adjusting the position of the slide to achieve the purpose of avoiding the magnetic rod.

[0020] Preferably, the spacing value between the middle magnetic rod and the side magnetic rod in the transverse magnetic group is smaller than the distance value between the left and right sides of the magnetic rod, the spacing value between the two magnetic rods in the same longitudinal magnetic group is equal to the spacing value between the left and right sides of the middle magnetic rod, and the middle magnetic rod, the side magnetic rod and the magnetic rod are of the same size. When the hydraulic cylinder is not started, the magnetic rod is located at the lower side of the gap between the middle magnetic rod and the side magnetic rod.

[0021] Through the above solution, the distance between the middle magnetic rod and the side magnetic rod is small, and the distance between the two magnetic rods is large. Therefore, when the airflow flows, the airflow flows in the gap of varying sizes, effectively disrupting the flow of the airflow, thereby facilitating the collection of iron filings.

[0022] Preferably, the upper and lower adjacent transverse magnetic groups and longitudinal magnetic groups together constitute a strong magnetic group, and the longitudinal magnetic group in the strong magnetic group is located on the lower side of the transverse magnetic group, the magnetic poles on the lower side of the magnetic rods in the strong magnetic group are the same as the magnetic poles of the adjacent side magnetic rods and the adjacent surfaces of the middle magnetic rod, and the two adjacent surfaces of the two magnetic rods in the strong magnetic group are respectively in the same vertical plane with the left and right sides of the middle magnetic rod.

[0023] Through the above scheme, after the magnetic rod penetrates and reaches between the middle magnetic rod and the side magnetic rod, a Halbach array can be formed, and the strong magnetic surface is facing downward, which can effectively remove large iron filings in the strong airflow.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. The present invention solves the problem that when adsorbing iron filings of different sizes, it is necessary to replace magnetic rods of different strengths, thereby affecting processing efficiency. By setting a longitudinal movement component, the longitudinal magnetic part is separated from the transverse magnetic part when the airflow velocity is low, so that the outer wall exposure area of the magnetic rod, the side magnetic rod and the middle magnetic rod is large, which effectively increases the contact area with the airflow, thereby improving the adsorption effect of small iron filings in the airflow. When the airflow velocity reaches a specified value, the longitudinal movement component drives the magnetic rod to move upward and insert into the gap between the middle magnetic rod and the side magnetic rod. The magnetic rod, the middle magnetic rod and the side magnetic rod form a Halbach array arrangement with the strong magnetic surface facing downward, thereby effectively improving the adsorption effect of large iron filings.

[0026] 2. By setting up longitudinal magnetic parts and transverse magnetic parts, the gap between the magnetic bars is larger, while the gap between the middle magnetic rod and the side magnetic rod is smaller. Therefore, on the one hand, the airflow passes through the large gap between the magnetic bars and the small gap between the middle magnetic rod and the side magnetic rod during the flow, causing the airflow to be turbulent, which facilitates the dispersion of iron chips in the middle of the airflow to both sides, thereby effectively improving the adsorption effect of iron chips. On the other hand, the magnetic bars contact the side surfaces of the side magnetic rods and the middle magnetic rod during the upward movement, thereby pushing the iron chips on the adjacent surfaces of the side magnetic rods and the middle magnetic rod upward, changing the accumulation position of the iron chips on the magnetic pole surfaces of the side magnetic rods and the middle magnetic rod, effectively increasing the adsorbable amount of iron chips during a single use of the equipment, thereby improving the continuity of a single processing process and ensuring processing efficiency.

[0027] 3. By setting up a transverse movement component, when the magnetic rod moves upward, the side magnetic rod will move to a position away from the middle magnetic rod, thereby increasing the interleaving area of the upper and lower adjacent strong magnetic groups when viewed from above, making it easier for the airflow to contact the strong magnetic surface during the flow process, thereby improving the adsorption effect of the strong magnetic group on iron filings and effectively improving the filtering effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic structural diagram of the present invention as a whole;

[0029] Figure 2 This is a schematic diagram of the structure inside the housing of the present invention;

[0030] Figure 3 It is a structural schematic diagram of the longitudinal movement component part of the present invention;

[0031] Figure 4 It is a structural schematic diagram of the transverse movement component part of the present invention;

[0032] Figure 5 It is a structural schematic diagram of the pressure frame part of the present invention;

[0033] Figure 6 For the present invention Figure 5 A magnified schematic diagram of point A in the middle;

[0034] Figure 7 This is a schematic diagram of the state when the transverse magnetic component and the longitudinal magnetic component of the present invention are separated;

[0035] Figure 8 It is a side view structural diagram of the longitudinal magnetic component of the present invention;

[0036] Figure 9 This is a schematic diagram of the state of the transverse magnetic components and the longitudinal magnetic components of the present invention when they are interlaced.

[0037] In the figure: 1. Shell; 2. Hopper; 3. Air inlet pipe; 4. Wind speed sensor; 5. Longitudinal movement assembly; 501. Adjustment plate; 502. Mounting frame; 503. Fixed block; 6. Exhaust pipe; 7. Transverse movement assembly; 701. Pressure frame; 7011. Slide plate; 7012. Baffle; 702. Positioning column; 703. Tension spring; 704. Sliding column; 705. Limit plate; 8. Hydraulic cylinder; 9. Longitudinal magnetic component; 901. Magnetic rod; 902. Isolation rod; 10. Transverse magnetic component; 1001. Center magnetic rod; 1002. Side magnetic rod; 1003. Isolation rod. DETAILED DESCRIPTION

[0038] The following, in conjunction with the accompanying drawings of the embodiments of the present invention, clearly and completely describes the technical solutions of the embodiments of the present invention, making its working state and structural features more detailed. Obviously, the embodiments described are only partial embodiments of the present invention and are not complete embodiments. Based on the embodiments of the present invention, other embodiments obtained by ordinary technicians in this field without making any creative ideas are all within the scope of protection of the present invention.

[0039] See also Figures 1 to 9 The present invention provides a multi-layer magnetic filtration device for a modular linkage dust collection workstation, and the technical solution is as follows:

[0040] For details, please refer to Figures 1 to 9 A multi-layer magnetic filtration device for a modular linkage dust collection workstation includes a shell 1, a hopper 2, an air inlet pipe 3, a wind speed sensor 4, a longitudinal movement component 5, an air outlet pipe 6, a transverse movement component 7, a hydraulic cylinder 8, a longitudinal magnetic component 9 and a transverse magnetic component 10. The hopper 2 is connected to the lower side of the shell 1, and the inner cavity of the hopper 2 is slidably connected to a drawer. The air inlet pipe 3 is connected to the lower end of the left side of the shell 1, and the air flow containing iron filings flows into the air inlet pipe 3. The wind speed sensor 4 is connected to the inner cavity of the air inlet pipe 3. The wind speed sensor 4 is used to detect the flow rate of the air flow. The longitudinal movement component 5 is connected to the shell 1. On the rear side, the air outlet pipe 6 is connected to the upper side of the outer shell 1, and the air flow is discharged from the air outlet pipe 6. The transverse movement component 7 is connected in array to the front side of the outer shell 1. The hydraulic cylinder 8 is connected to the rear side of the outer shell 1, and the output end of the hydraulic cylinder 8 is connected to the longitudinal movement component 5. The longitudinal magnetic component 9 is connected in array to the front side of the longitudinal movement component 5, and the transverse magnetic component 10 is connected in array to the rear side of the transverse movement component 7. When the wind speed reaches the specified value, the hydraulic cylinder 8 drives the longitudinal magnetic component 9 to move up through the longitudinal movement component 5 and is inserted in the transverse magnetic component 10. When the longitudinal magnetic component 9 moves up, the transverse movement component 7 drives the transverse magnetic component 10 to avoid the longitudinal magnetic component 9.

[0041] By setting up a wind speed sensor 4, when removing large iron filings, a faster airflow rate is required due to the large mass of the iron filings. When removing small iron filings, the mass of the iron filings is small, so the airflow rate can be reduced to save electricity, thereby responding to the needs of environmental protection project construction. The wind speed sensor 4 can sense the change in flow rate and then control the start of the hydraulic cylinder 8. When the hydraulic cylinder 8 is started, the longitudinal magnetic component 9 is driven upward by the longitudinal movement component 5 and interspersed between the transverse magnetic components 10. The longitudinal magnetic components 9 and the transverse magnetic components 10 form a Halbach array, which effectively improves the magnetic field strength of the windward surface of the longitudinal magnetic components 9 and the transverse magnetic components 10, thereby achieving the purpose of adsorbing large iron filings, effectively realizing the filtration of solid waste pollution, ensuring the cleanliness of the exhaust gas, and realizing atmospheric control and pollution treatment.

[0042] As an embodiment of the present invention, refer to Figure 3 、 Figure 7 and Figure 9, the longitudinal movement component 5 includes an adjustment plate 501, a mounting bracket 502 and a fixed block 503, the adjustment plate 501 is connected to the rear side of the shell 1, the adjustment plate 501 can slide up and down on the rear side of the shell 1, and the adjustment plate 501 is connected to the output end of the hydraulic cylinder 8, and the output of the hydraulic cylinder 8 can drive the adjustment plate 501 to move up and down, the mounting bracket 502 array is arranged on the rear side of the adjustment plate 501, and by controlling the adjustment plate 501, multiple mounting brackets 502 can be driven to move up and down synchronously, the fixed block 503 array is connected to both sides of the mounting bracket 502, the longitudinal magnetic component 9 is connected to the fixed block 503, the longitudinal magnetic component 9 includes a magnetic rod 901 and an isolation rod 902, the magnetic rod 901 passes through the adjustment plate 501 and is connected to the front end of the fixed block 503, the magnetic rod 901 It can slide back and forth in the adjustment plate 501. Through the adjustment plate 501, multiple magnetic bars 901 can be driven to move at one time. The isolation bar 902 is connected to the front end of the magnetic bar 901. The surface of the isolation bar 902 has no magnetism. The longitudinal magnetic part 9 is then driven forward by the mounting frame 502. When the contact surface between the longitudinal magnetic part 9 and the adjustment plate 501 moves to the isolation bar 902, the iron filings on the surface of the longitudinal magnetic part 9 can be effectively removed. The magnetization direction of the magnetic bar 901 is the up and down direction, that is, the N pole and S pole of the magnetic bar 901 are distributed up and down. The two magnetic bars 901 in the same row on a single mounting frame 502 form a longitudinal magnetic group, and the lower sides of the two magnetic bars 901 in the longitudinal magnetic group are opposite poles, that is, when the lower side of one of the two magnetic bars 901 is the N pole, the lower side of the other magnetic bar 901 is the S pole.

[0043] By setting up the longitudinal movement component 5, the hydraulic cylinder 8 can drive multiple mounting frames 502 to move upward through the adjustment plate 501, and the mounting frame 502 drives the longitudinal magnetic part 9 to move upward through the fixed block 503, so that the longitudinal magnetic part 9 penetrates and rubs into the transverse magnetic part 10, thereby achieving the purpose of changing the magnetic field strength. After adsorption for a period of time, the longitudinal magnetic part 9 is driven to move backward through the mounting frame 502 and the fixed block 503. As the longitudinal magnetic part 9 moves, the contact surface between the longitudinal magnetic part 9 and the adjustment plate 501 moves from the magnetic rod 901 to the isolation rod 902. The contact between the adjustment plate 501 and the magnetic rod 901 causes the iron filings on the surface of the magnetic rod 901 to gather on the isolation rod 902, and the surface of the isolation rod 902 has no magnetism, and then the iron filings fall into the hopper 2. The iron filings in the hopper 2 can be extracted through the drawer. At the same time, the N pole and S pole of the magnetic rod 901 are distributed up and down, and then the iron filings are mainly gathered on the upper and lower sides of the magnetic rod 901, and less on the left and right sides.

[0044] As an embodiment of the present invention, refer to Figure 4 、 Figure 5 、 Figure 7 and Figure 9, the transverse movement assembly 7 includes a pressure frame 701, a positioning column 702, a tension spring 703, a sliding column 704 and a limit plate 705. The pressure frame 701 is connected in an array to the front side of the inner cavity of the shell 1, and the pressure frame 701 can slide left and right. The positioning column 702 is arranged between two adjacent pressure frames 701. The number of positioning columns 702 is multiple, and the positioning column 702 is slidably connected to the shell 1, and the positioning column 702 can slide back and forth. Multiple tension springs 703 are respectively connected to both sides of the positioning column 702, and the sliding column 704 is connected to one end of the tension spring 703 away from the positioning column 702. The sliding column 704 can slide back and forth in the pressure frame 701, and the limit plate 705 is connected to the front end of the positioning column 702. The limit plate 705 is connected to the sliding column 704, and the sliding column 704 is The limiting plate 705 can slide left and right. The transverse magnetic component 10 includes a central magnetic rod 1001, a side magnetic rod 1002 and an isolation rod 1003. The central magnetic rod 1001 and the side magnetic rod 1002 are fixedly connected to the rear sides of the positioning column 702 and the sliding column 704, respectively. A plurality of isolation rods 1003 are respectively connected to the rear sides of the central magnetic rod 1001 and the side magnetic rod 1002. The magnetization direction of the central magnetic rod 1001 and the side magnetic rod 1002 is left and right, that is, the N pole and S pole of the central magnetic rod 1001 and the side magnetic rod 1002 are distributed left and right. The central magnetic rods 1001 and the side magnetic rods 1002 in the same row on a single limiting plate 705 constitute a transverse magnetic group. Two side magnetic rods 1002 and one central magnetic rod 1001 constitute a transverse magnetic group, and the adjacent surfaces of the central magnetic rod 1001 and the side magnetic rod 1002 are the same poles.

[0045] By setting a transverse moving assembly 7, the number of transverse moving assemblies 7 is multiple, the side magnetic rod 1002 is connected to the sliding column 704, and the sliding column 704 is slidably connected to the shell 1. When the longitudinal magnetic part 9 moves up, the pressure frame 701 will drive the side magnetic part to move to the side away from the positioning column 702, thereby avoiding the longitudinal magnetic part 9. The N pole and S pole of the middle magnetic rod 1001 and the side magnetic rod 1002 are distributed left and right, and the iron filings are mainly gathered on the left and right sides of the middle magnetic rod 1001 and the side magnetic rod 1002. There is less iron filings collected on the lower two sides. When the longitudinal magnetic part 9 moves upward, the left and right sides of the magnetic bar 901 will push the left and right sides of the middle magnetic rod 1001 and the side magnetic rod 1002 to move the iron filings upward, and then gather at the top of the middle magnetic rod 1001 and the side magnetic rod 1002, thereby effectively improving the single adsorption amount of iron filings during the equipment cleaning process. At the same time, due to the large energy consumption of the electromagnet, in order to respond to the needs of environmental protection, the middle magnetic rod 1001, the side magnetic rod 1002 and the magnetic bar 901 will choose permanent magnets.

[0046] As an embodiment of the present invention, refer to Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 and Figure 9The pressure frame 701 includes a slide plate 7011 and a baffle 7012. The slide plate 7011 is connected to the rear side of the housing 1 and can slide left and right. The baffle 7012 is connected to the rear side of the slide plate 7011. The lower end of the baffle 7012 is inclined near the side of the positioning column 702. The front end surface of the isolation rod 902 is located between the front and rear end surfaces of the baffle 7012. When the isolation rod 902 moves upward, it contacts the inclined surface of the baffle 7012, thereby causing the baffle 7012 to move outward. The movement of the baffle 7012 drives the side magnetic rod 100 2 moves, thereby avoiding the magnetic rod 901. The distance between the central magnetic rod 1001 and the side magnetic rod 1002 in the transverse magnetic group is smaller than the distance between the left and right sides of the magnetic rod 901. The distance between the two magnetic rods 901 in the same longitudinal magnetic group is equal to the distance between the left and right sides of the central magnetic rod 1001. The central magnetic rod 1001, the side magnetic rod 1002 and the magnetic rod 901 are of the same size. The gap between the central magnetic rod 1001 and the side magnetic rod 1002 is smaller, while the gap between the two magnetic rods 901 is larger. As a result, the airflow will pass through the constantly changing gap in size during the flow, which is conducive to the airflow. Turbulence occurs, which makes it easier to adsorb iron filings. When the hydraulic cylinder 8 is not started, the magnetic bar 901 is located at the lower side of the gap between the middle magnetic rod 1001 and the side magnetic rod 1002. The upper and lower adjacent transverse magnetic groups and longitudinal magnetic groups together form a strong magnetic group, and the longitudinal magnetic group in the strong magnetic group is located at the lower side of the transverse magnetic group. The magnetic poles on the lower side of the magnetic bar 901 in the strong magnetic group are the same as the magnetic poles on the adjacent sides of the adjacent side magnetic rods 1002 and the middle magnetic rod 1001. That is, when the lower side of a magnetic bar 901 in a longitudinal magnetic group is the N pole, the side magnetic rods 1002 and the middle magnetic rods 1001 that are closest to the upper side of the magnetic bar 901 are the same as the side magnetic rods 1002 and the middle magnetic rods 1001 that are closest to the upper side of the magnetic bar 901. The adjacent surface is the N pole, which expands the surface area of the N pole. The lower side of the other magnetic bar 901 is the S pole. The adjacent surface of the side magnetic rod 1002 and the middle magnetic rod 1001 on the upper side of the magnetic bar 901 is the S pole, which expands the surface area of the S pole, thereby realizing the collection of magnetic flux lines on one side, effectively improving the magnetic strength of the lower side of the strong magnetic group, and facilitating the adsorption of large iron filings. The two adjacent surfaces of the two magnetic bars 901 in the strong magnetic group are respectively in the same vertical plane with the left and right sides of the middle magnetic rod 1001. When the magnetic bar 901 moves upward, it will not squeeze the middle magnetic rod 1001.

[0047] By setting up the pressure frame 701, when the hydraulic cylinder 8 drives the longitudinal magnetic part 9 to move upward through the longitudinal movement component 5, the isolation rod 902 will contact the baffle 7012, thereby pushing the two baffles 7012 away from each other. The baffle 7012 drives the side magnetic rod 1002 to move through the slide 7011, and then the gap between the side magnetic rod 1002 and the longitudinal magnetic rod is expanded. The magnetic rod 901 moves upward and is inserted into the gap between the side magnetic rod 1002 and the longitudinal magnetic rod. The magnetic rod 901, the side magnetic rod 1002 and the longitudinal magnetic rod form a Halbach array, and the strong magnetic surface faces the intake pipe 3. Then, when the airflow flows, the iron filings contact the strong magnetic surface formed by the magnetic rod 901, the side magnetic rod 1002 and the longitudinal magnetic rod, thereby achieving effective adsorption of large iron filings.

[0048] When adsorbing small iron filings, the air flow rate is low, and the longitudinal magnetic piece 9 and the transverse magnetic piece 10 are arranged separately. Figure 7 As shown, the surface area formed by the longitudinal magnetic member 9 and the transverse magnetic member 10 is large, which can effectively increase the contact area with the airflow, thereby improving the adsorption effect of small iron filings. When large iron filings are adsorbed, the airflow velocity is faster, and the wind speed sensor 4 senses the change in airflow velocity and starts the hydraulic cylinder 8. The hydraulic cylinder 8 drives the magnetic rod 901 to move upward through the adjustment plate 501, the mounting bracket 502 and the fixed block 503. The magnetic rod 901 moves upward to squeeze the baffle 7012, so that the baffle 7012 moves to the side away from the positioning column 702. The movement of the baffle 7012 drives the slide plate 7011 to move, and then drives the side magnetic rod 1002 to move. When the side magnetic rod 1002 moves, the distance between the side magnetic rod 1002 and the middle magnetic rod 1001 becomes larger. At this time, the magnetic rod 901 is inserted into the gap between the side magnetic rod 1002 and the middle magnetic rod 1001. Figure 9 As shown, a Halbach array with a strong magnetic surface facing the air intake pipe 3 is formed, which effectively improves the unilateral magnetic force of the longitudinal magnetic component 9 and the transverse magnetic component 10, thereby achieving effective adsorption of large iron filings in strong currents. At the same time, the magnetic rod 901 contacts the side surfaces of the side magnetic rods 1002 and the middle magnetic rod 1001 during the upward movement, thereby pushing the iron filings on the adjacent surfaces of the side magnetic rods 1002 and the middle magnetic rod 1001 upward, changing the accumulation position of the iron filings and effectively increasing the accumulation amount of iron filings during a single use of the device.

[0049] In order to improve the adsorption effect of the longitudinal magnetic member 9 and the transverse magnetic member 10 on small iron filings, the gap between the magnetic bars 901 is made larger than the gap between the side magnetic rods 1002 and the middle magnetic rod 1001, so that when the airflow flows to the magnetic bars 901, it forms an expansion flow, and when it flows to the gap between the side magnetic rods 1002 and the middle magnetic rod 1001, it forms a convergence flow. The magnetic bars 901, the side magnetic rods 1002 and the middle magnetic rod 1001 are arranged in an upper and lower staggered manner, so that the airflow is continuously expanded and gathered, thereby disrupting the airflow, facilitating the dispersion of small iron filings, and achieving the purpose of facilitating adsorption;

[0050] In order to facilitate the removal of iron filings on the surface of the magnetic rod 901, the side magnetic rod 1002 and the middle magnetic rod 1001, an isolation rod 902 is set at the front end of the magnetic rod 901, and an isolation rod 1003 is set at the rear end of the side magnetic rod 1002 and the middle magnetic rod 1001. When the iron filings on the surface of the magnetic rod 901, the side magnetic rod 1002 and the middle magnetic rod 1001 accumulate to a certain extent, the magnetic rod 901 can be pulled out through the mounting bracket 502, and the outer wall of the magnetic rod 901 contacts the adjustment plate 501, so that The iron filings gather. When the adjustment plate 501 contacts the isolation rod 902, the iron filings gather on the isolation rod 902, and then the iron filings are demagnetized and fall into the hopper 2. The sliding column 704 and the positioning column 702 can be used to pull out the side magnetic rod 1002 and the middle magnetic rod 1001 through the limit plate 705. The outer walls of the side magnetic rod 1002 and the middle magnetic rod 1001 contact the outer shell 1, so that the iron filings gather. When the isolation rod 1003 contacts the outer shell 1, the iron filings are demagnetized and fall into the hopper 2.

[0051] Although the embodiments of the present invention have been described, it is possible for those skilled in the art to change and modify the embodiments to obtain other effects with an understanding of the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-layer magnetic filter device for a modular linked dust collection workstation, comprising a housing (1), characterized in that: The invention also includes a hopper (2), an air inlet pipe (3), a wind speed sensor (4), a longitudinal movement assembly (5), an air outlet pipe (6), a transverse movement assembly (7), a hydraulic cylinder (8), a longitudinal magnetic component (9) and a transverse magnetic component (10), wherein the hopper (2) is connected to the lower side of the housing (1), the air inlet pipe (3) is connected to the lower end of the left side of the housing (1), the wind speed sensor (4) is connected to the inner cavity of the air inlet pipe (3), the longitudinal movement assembly (5) is connected to the rear side of the housing (1), the air outlet pipe (6) is connected to the upper side of the housing (1), and the transverse movement assembly (7) is arranged in an array. The hydraulic cylinder (8) is connected to the front side of the housing (1), the hydraulic cylinder (8) is connected to the rear side of the housing (1), and the output end of the hydraulic cylinder (8) is connected to the longitudinal movement component (5), the longitudinal magnetic component (9) array is connected to the front side of the longitudinal movement component (5), and the transverse magnetic component (10) array is connected to the rear side of the transverse movement component (7); when the wind speed reaches a specified value, the hydraulic cylinder (8) drives the longitudinal magnetic component (9) to move upward through the transverse magnetic component (10) through the longitudinal movement component (5), and when the longitudinal magnetic component (9) moves upward, the transverse movement component (7) drives the transverse magnetic component (10) to avoid the longitudinal magnetic component (9).

2. A multi-layer magnetic filtration device for a modular linkage dust collection workstation according to claim 1, characterized in that: The longitudinal movement assembly (5) comprises an adjustment plate (501), a mounting frame (502) and a fixed block (503); the adjustment plate (501) is connected to the rear side of the housing (1), and the adjustment plate (501) is connected to the output end of the hydraulic cylinder (8); the mounting frame (502) is arranged in an array on the rear side of the adjustment plate (501); the fixed block (503) is connected in an array to both sides of the mounting frame (502); and the longitudinal magnetic member (9) is connected to the fixed block (503).

3. The multi-layer magnetic filtration device for a modular linkage dust collection workstation according to claim 2, characterized in that: The longitudinal magnetic component (9) comprises a magnetic bar (901) and an isolation bar (902). The magnetic bar (901) passes through the adjustment plate (501) and is connected to the front end of the fixed block (503). The isolation bar (902) is connected to the front end of the magnetic bar (901). The magnetization direction of the magnetic bar (901) is the up-down direction. Two magnetic bars (901) in the same row on a single mounting frame (502) form a longitudinal magnetic group, and the lower sides of the two magnetic bars (901) in the longitudinal magnetic group are oppositely polarized.

4. The multi-layer magnetic filtration device for a modular linkage dust collection workstation according to claim 3, characterized in that: The transverse movement assembly (7) includes a pressure frame (701), a positioning column (702), a tension spring (703), a sliding column (704) and a limit plate (705); the pressure frame (701) is connected in array to the front side of the inner cavity of the shell (1); the positioning column (702) is arranged between two adjacent pressure frames (701), and the positioning column (702) is slidably connected to the shell (1); a plurality of tension springs (703) are respectively connected to both sides of the positioning column (702); the sliding column (704) is connected to one end of the tension spring (703) away from the positioning column (702); and the limit plate (705) is connected to the front end of the positioning column (702).

5. The multi-layer magnetic filtration device for a modular linkage dust collection workstation according to claim 4, characterized in that: The transverse magnetic component (10) comprises a central magnetic rod (1001), a side magnetic rod (1002) and an isolation rod (1003); the central magnetic rod (1001) and the side magnetic rod (1002) are respectively connected to the rear sides of the positioning column (702) and the sliding column (704); a plurality of isolation rods (1003) are respectively connected to the rear sides of the central magnetic rod (1001) and the side magnetic rod (1002); the magnetization direction of the central magnetic rod (1001) and the side magnetic rod (1002) is left-right; the central magnetic rods (1001) and the side magnetic rods (1002) in the same row on a single limiting plate (705) form a transverse magnetic group, and the adjacent surfaces of the central magnetic rods (1001) and the side magnetic rods (1002) in the same transverse magnetic group are of the same polarity.

6. The multi-layer magnetic filtration device for a modular linkage dust collection workstation according to claim 5, characterized in that: The pressure frame (701) comprises a slide plate (7011) and a baffle plate (7012), wherein the slide plate (7011) is connected to the rear side of the housing (1), and the baffle plate (7012) is connected to the rear side of the slide plate (7011), and the lower end of the baffle plate (7012) is inclined near the positioning column (702), and the front end surface of the isolation rod (902) is located between the front and rear end surfaces of the baffle plate (7012).

7. The multi-layer magnetic filtration device for a modular linkage dust collection workstation according to claim 5, characterized in that: The spacing between the central magnetic rod (1001) and the side magnetic rods (1002) in the transverse magnetic group is smaller than the distance between the left and right sides of the magnetic rod (901); the spacing between the two magnetic rods (901) in the same longitudinal magnetic group is equal to the spacing between the left and right sides of the central magnetic rod (1001); the central magnetic rod (1001), the side magnetic rods (1002) and the magnetic rod (901) are of the same size; and when the hydraulic cylinder (8) is not activated, the magnetic rod (901) is located below the gap between the central magnetic rod (1001) and the side magnetic rods (1002).

8. The multi-layer magnetic filtration device for a modular linkage dust collection workstation according to claim 6, characterized in that: The upper and lower adjacent transverse magnetic groups and longitudinal magnetic groups together constitute a strong magnetic group, and the longitudinal magnetic group in the strong magnetic group is located below the transverse magnetic group. The magnetic poles on the lower side of the magnetic rods (901) in the strong magnetic group are the same as the magnetic poles on the adjacent side magnetic rods (1002) and the adjacent surfaces of the middle magnetic rod (1001). The two adjacent surfaces of the two magnetic rods (901) in the strong magnetic group are respectively in the same vertical plane as the left and right sides of the middle magnetic rod (1001).

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