A device for removing iron filings

Abstract

This application provides a metal filings removal device, which includes a housing with an inclined material channel; multiple electromagnetic flaps located within the material channel, dividing the material channel into multiple parallel sub-channels; the electromagnetic flaps are hinged to the housing, with the portion of the electromagnetic flaps outside the housing serving as a flow guide channel; and a drive mechanism for driving the electromagnetic flaps to swing. When the electromagnetic flaps swing to a first predetermined position, the metal filings adsorbed on the electromagnetic flaps can roll to the flow guide channel and be guided through the flow guide channel to a collection device outside the housing. By using electromagnetic flaps to divide the material channel into multiple sub-channels, and by adsorbing metal filings in the material as it flows through the sub-channels, the flow rate of the material during metal filings removal is improved. After the electromagnetic flaps adsorb the metal filings, the swinging motion of the electromagnetic flaps guides the metal filings to the flow guide channel and then to the collection device outside the housing.

Description

Technical Field

[0001] This application relates to the field of bulk material processing technology, and in particular to a device for removing iron filings. Background Technology

[0002] Bulk materials are a common form of material packaging in industry, used for both raw materials and finished products in sectors such as chemicals, building materials, energy, food, and animal husbandry. Throughout the entire production process, from raw material input to finished product output, material processing is involved. Removing metallic foreign objects from materials is a crucial step, affecting the normal operation of downstream equipment and, more importantly, the quality of the finished product. Traditional magnetic rod-type iron filings removal devices, while simple in structure, suffer from a trade-off between magnetic rod density, iron removal efficiency, and material flow rate. This can easily lead to blockages in highly viscous powders, hindering normal equipment feeding. While belt-type iron filings removal devices offer good iron removal, their large size, poor sealing, and limited operating conditions restrict their effectiveness. Summary of the Invention

[0003] The purpose of this utility model application is to provide a device for removing iron filings, so as to improve the efficiency of removing iron filings from materials.

[0004] This application provides a metal chip removal device, which includes: a housing having an inclined material channel; and a plurality of electromagnetic flaps located within the material channel, wherein the plurality of electromagnetic flaps divide the material channel into a plurality of parallel sub-channels.

[0005] The electromagnetic flap is hinged to the box body, and part of the electromagnetic flap is exposed outside the box body. The part of the electromagnetic flap outside the box body is a flow channel; wherein, the axis of the hinge of the electromagnetic flap is inclined relative to the vertical direction.

[0006] It also includes a drive mechanism for driving the electromagnetic flap to swing. When the electromagnetic flap swings to a first set position, the iron filings adsorbed on the electromagnetic flap can roll to the guide channel and be guided through the guide channel to the collection device outside the box.

[0007] In this embodiment, an electromagnetic flap is used to divide the material channel into multiple sub-channels. As the material flows through these sub-channels, the electromagnetic flap adsorbs iron filings, thus increasing the material's flow rate during iron filings removal. After the electromagnetic flap adsorbs the iron filings, the flap's oscillation guides them to the flow channel and then to a collection device outside the casing.

[0008] In one specific implementation, a guide plate is also included, which is fixed to the housing and used to guide the material to the electromagnetic flap.

[0009] In one specific implementation, the guide plate includes a plurality of first guide plates arranged at intervals, and each first guide plate corresponds one-to-one with each electromagnetic flip plate; wherein, the first guide plate includes a vertical plate and a bent plate connected to the vertical plate and used to guide the material to the corresponding electromagnetic flip plate;

[0010] The guide plate also includes a second guide plate, which is disposed opposite to the first guide plate located at the end, and is used to cooperate with the first guide plate to guide the material to the corresponding electromagnetic flip plate.

[0011] In one specific implementation, the drive mechanism includes a pull arm that presses against each flow channel, and a drive assembly that drives the pull arm to swing.

[0012] In one specific implementation, the drive assembly includes a linear drive mechanism fixed to the outside of the housing, a pull rod shaft fixedly connected to the drive end of the linear drive mechanism, and the pull rod shaft fixedly connected to a plurality of pull arms; wherein the driving direction of the linear drive mechanism is horizontal.

[0013] In one specific implementation, the pull arm includes a vertical arm and a pressing arm fixedly connected to the vertical arm and inclined toward the flow channel. A slider is hinged to one end of the pressing arm away from the vertical arm, and the slider presses against the flow channel.

[0014] In one specific implementation, the slider is hinged to the pressure arm via a ball head.

[0015] In one specific implementation, the linear drive mechanism is a pneumatic cylinder, a hydraulic cylinder, or a linear motor.

[0016] In one specific implementation, the collection device is a collection box located below the flow channel, and the collection box is fixedly connected to the housing.

[0017] In one specific implementation, the electromagnetic flap includes a flapping plate and an electromagnetic coil built into the flapping plate; it also includes a baffle plate connected to the flapping plate, the baffle plate being exposed outside the housing and used to form the flow guiding channel;

[0018] It also includes a bushing fixed on the flip plate and a rotating shaft passing through the bushing; the housing is provided with a shaft head that mates with the bushing.

[0019] In one specific implementation, the device further includes a fixed shaft fixed inside the housing, and the fixed shaft is provided with the shaft head.

[0020] In one specific implementation, the plurality of electromagnetic flaps are divided into two columns, and the two columns of electromagnetic flaps are arranged on both sides of the axis of the material channel.

[0021] In one specific implementation, the scraper is further included, which is hinged to the flipping plate at a position where it is hinged to the flipping plate at an end of the flipping plate away from the bending plate; and when the scraper swings to a third predetermined position, the scraper avoids material; and when the scraper swings to a fourth predetermined position, the scraper guides the iron filings on the flipping plate to the bending plate. Attached Figure Description

[0022] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the various drawings denote the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings depict only some embodiments provided according to this disclosure and should not be construed as limiting the scope of this disclosure.

[0023] Figure 1 This is a schematic diagram of the iron filings removal device provided in the embodiments of this application;

[0024] Figure 2 This is a schematic diagram of the internal structure of the iron filings removal device provided in the embodiments of this application;

[0025] Figure 3 and Figure 4 This is a schematic diagram of the working state of the electromagnetic flip plate provided in the embodiments of this application;

[0026] Figure 5 This is a schematic diagram of the structure of the electromagnetic flip plate provided in the embodiments of this application;

[0027] Figure 6 A schematic diagram illustrating the fit between the pull arm and the pull rod shaft according to an embodiment of this application;

[0028] Figure 7 This is a schematic diagram of the structure of the fixed shaft provided in an embodiment of this application. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this application clearer, the application will now be described in further detail with reference to the accompanying drawings.

[0030] It should be noted that, unless otherwise defined, the technical or scientific terms used in one or more embodiments of this specification should have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms "first," "second," and similar words used in one or more embodiments of this specification do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0031] To facilitate understanding of the iron filings removal device provided in this application embodiment, its application scenario is first described. The iron filings removal device provided in this application embodiment is used to remove iron filings from materials. Currently, the main methods for removing iron filings from materials are magnetic rod type or belt type chip removal. However, the current magnetic rod type chip removal has some drawbacks, and the belt type chip removal method occupies a relatively large volume. Therefore, this application embodiment provides an iron filings removal device to facilitate the removal of iron filings from materials. A detailed description is then provided below with reference to specific accompanying drawings and embodiments.

[0032] refer to Figure 1 As shown, Figure 1 A schematic diagram of the iron filings removal device provided in this application embodiment is shown. The iron filings removal device mainly includes a housing 10, an electromagnetic flap 20, and a drive mechanism 40. The housing 10 serves as the supporting structure for the entire device, supporting the electromagnetic flap 20 and the drive mechanism 40. The electromagnetic flap 20 is used to remove iron filings from the material, and the drive mechanism 40 drives the electromagnetic flap 20 to rotate, guiding the absorbed iron filings to a collection device outside the housing 10. A detailed description follows with reference to the accompanying drawings and embodiments.

[0033] Please refer to the above. Figure 1 and Figure 2 As shown, Figure 2 The housing 10 is shown to have a material channel 100, which is used to transport materials, such as... Figure 1The dashed line with arrows in the illustration indicates the direction of material transport, and the material channel 100 is an inclined material channel. Additionally, the housing 10 is open at both ends to allow the material channel 100 to communicate with external devices. During material transport, material enters the material channel 100 through the top opening of the housing 10 and flows out of the material channel 100 through the bottom opening. When used with other equipment, the top and bottom of the housing 10 can be connected to other devices that transport or carry materials.

[0034] The electromagnetic tilting plate 20 provided in this embodiment is used to adsorb iron filings in the material as it flows through it. In a specific configuration, multiple electromagnetic tilting plates 20 are used, and these multiple plates are located in the material channel 100, dividing the material channel 100 into multiple parallel sub-channels 110. For example... Figure 2 As shown, multiple electromagnetic flip plates 20 are arranged along a direction perpendicular to the material channel 100, dividing the material channel 100 into multiple sub-channels 110 along the same direction. When material enters the material channel 100 from the opening of the housing 10, it falls onto the electromagnetic flip plates 20 and is transported in the sub-channels 110 divided by the electromagnetic flip plates 22. During material transport, iron filings in the material are attracted by the magnetism of the electromagnetic flip plates 20, thereby removing the iron filings from the material.

[0035] Continue to refer to Figure 2 As shown, in the specific installation of the electromagnetic flaps, each electromagnetic flap is hinged to the housing 10, and the axis of hinge between the electromagnetic flap and the housing 10 is inclined relative to the vertical direction. Combined with... Figure 1 and Figure 2 As shown, the axis of the electromagnetic flap hinge provided in this embodiment can be parallel to the transmission direction of the material channel 100, or tilted at a certain angle relative to the transmission direction of the material channel 100. This ensures that the material can fall onto the electromagnetic flap during transmission, and the electromagnetic flap can adsorb iron filings in the material.

[0036] Continue to refer to Figure 2 As shown, when the electromagnetic flap is installed, part of the electromagnetic flap is located inside the housing 10, and part is located outside the housing 10. The part of the electromagnetic flap inside the housing 10 is used to separate the material channel 100, while the part of the electromagnetic flap outside the housing 10 serves as the flow guide channel 21.

[0037] When in use, when the electromagnetic flap is in the second set position, it separates the material channel 100 and can adsorb iron filings in the material. When the electromagnetic flap rotates to the first set position, it swings outward from the box 10, the electromagnetic flap is de-energized, and the iron filings roll into the guide channel 21 and are guided through the guide channel 21 to the collection device outside the box 10.

[0038] Continue to refer to Figure 1 The driving device is used to drive the electromagnetic flap to swing so that when the electromagnetic flap swings to the first set position, the iron filings adsorbed on the electromagnetic flap can roll to the guide channel 21 and be guided to the collection device through the guide channel 21.

[0039] As can be seen from the above description, the iron filings removal device provided in this application embodiment divides the material channel 100 into multiple sub-channels 110 using electromagnetic flaps. When the material flows in the sub-channels 110, the electromagnetic flaps adsorb iron filings from the material, thereby increasing the flow rate of the material during iron filings removal. Furthermore, after the electromagnetic flaps adsorb the iron filings, the swinging motion of the electromagnetic flap 20 guides the iron filings to the guide channel 21 and then to the collection device outside the housing 10. In addition, when using the above-mentioned iron filings removal device, the overall structure of the device is relatively compact, occupying a small space.

[0040] Continue to refer to Figure 1 and Figure 2 As shown, the iron filings removal device provided in this embodiment of the application also includes a guide plate 50, which is used to guide the material to the electromagnetic flip plate 20. In a specific setting, the guide plate 50 is fixed on the housing 10 and located at the entrance of the material channel 100, so as to guide the material when it enters the material channel 100.

[0041] In one of the alternative solutions, such as Figure 2 As shown, the guide plate 50 includes a first guide plate 51 and a second guide plate 52. There are multiple first guide plates 51, and each first guide plate 51 corresponds one-to-one with each electromagnetic flip plate 20. In arrangement, the multiple first guide plates 51 are spaced apart, and their arrangement direction intersects with the transmission direction of the material channel 100. Specifically, each first guide plate 51 is located on the side of the electromagnetic flip plate 20 used to carry the material. Each first guide plate 51 includes a vertical plate and a bent plate, wherein the vertical plate and the bent plate are fixedly connected, and the bent plate is inclined towards the corresponding electromagnetic flip plate to guide the material, causing it to fall into the electromagnetic flip plate 20 corresponding to that first guide plate 51.

[0042] The second guide plate 52 is positioned opposite the first guide plate 51 at the end and works in conjunction with the first guide plate 51 to guide the material to the corresponding electromagnetic tilting plate 20. During installation, the second guide plate 52 is fixed to the side wall of the housing 10 and works in conjunction with the first guide plate 51 at the end to guide the material onto the electromagnetic tilting plate 20. The side wall of the housing 10 where the second guide plate 52 is located is opposite to the side of the electromagnetic tilting plate 20 at the end that carries the material. This prevents material from falling into the gap between the electromagnetic tilting plate 20 and the side wall, ensuring that all material can pass through the electromagnetic tilting plate 20 during transport.

[0043] In a specific, feasible solution, the plurality of electromagnetic flaps provided in this application embodiment are divided into two columns, and the two columns of electromagnetic flaps are arranged on both sides of the axis of the material channel 100. See also... Figure 3 and Figure 4 As shown, when the electromagnetic tilting plate 20 transports materials, two opposing electromagnetic tilting plates 20 in the two rows are parallel and joined together to form a plane for carrying materials. When the electromagnetic tilting plate 20 transfers the materials outside the box 10, the two opposing electromagnetic tilting plates 20 swing in opposite directions (e.g., ...). Figure 4 (The direction indicated by the solid line with arrows shown in the figure) causes the electromagnetic flip plate 20 to tilt outward from the housing 10, and the iron filings can slide down into the guide channel 21 along the tilt direction.

[0044] In one feasible embodiment, the collection device provided in this application can be a scrap metal removal device, which can be a collection box 30 located below the guide channel 21, and the collection box 30 is fixedly connected to the housing 10. When the electromagnetic flip plate 20 flips to the first set position, the guide channel 21 is tilted relative to the collection box 30. The scrap metal removed from the material can then be collected through the collection box 30.

[0045] In an alternative embodiment, the collection box 30 can be detachably and fixedly connected to the box body 10 via a hook, so that the collection box 30 can be hung on the box body 10 for easy access.

[0046] In a specific example, such as Figure 4 and Figure 6 As shown, the driving mechanism 40 provided in this embodiment may include a driving component and a pull arm 43, which is used to cooperate with the flow channel 21 on the electromagnetic flip plate 20. The driving component is used to drive the pull arm 43. In a specific configuration, the axis of the electromagnetic flip plate 20 when hinged is located on one side of the center of gravity of the electromagnetic flip plate 20, and the center of gravity of the electromagnetic flip plate 20 is located inside the housing 10, thereby making the electromagnetic flip plate 20 form a lever in the direction perpendicular to its hinge axis. When no part abuts against the flow channel 21, the electromagnetic flip plate 20 rotates into the housing 10. In this embodiment, by using the pull arm 43 to press against the flow channel 21 and driving the pull arm 43 to move by the driving component, the rotation angle of the electromagnetic flip plate 20 can be adjusted.

[0047] In a specific example, the driving component provided in this application embodiment is a linear driving component, whose driving direction intersects with the material conveying direction. When the driving component drives the pull arm 43, the pull arm 43 drives the electromagnetic flip plate 20 to rotate, so that the electromagnetic flip plate 20 swings between a first set position and a second set position.

[0048] In a specific example, the driving assembly provided in this application embodiment includes a linear drive mechanism 41 and a pull rod shaft 42. The linear drive mechanism 41 is fixed to the outer wall of the housing 10. The pull rod shaft 42 is fixedly connected to the drive end of the linear drive mechanism 41, and when the drive end moves along a straight line, it drives the pull rod shaft 42 to move along that straight line. In a specific example, the driving direction of the linear drive mechanism 41 is horizontal.

[0049] The linear drive mechanism 41 can be a common linear drive structure such as a pneumatic cylinder, a hydraulic cylinder, or a linear motor. Of course, in addition to the linear drive mechanism 41 in the example above, other linear drive mechanisms 41 can also be used, as long as they can drive the tie rod shaft 42 to move back and forth.

[0050] In an alternative embodiment, when discharging iron filings, the electromagnetic flip plate 20 can be vibrated by controlling the linear drive mechanism 41 to clean up the material remaining in the device.

[0051] The aforementioned pull rod shaft 42 is fixedly connected to multiple pull arms 43 so that when the pull rod shaft 42 moves back and forth, it can drive the pull arms 43 to move back and forth.

[0052] In a specific example, the pull arm 43 includes a vertical arm and a pressing arm fixedly connected to the vertical arm and inclined toward the guide channel 21. A slider is hinged to the end of the pressing arm away from the vertical arm, and the slider presses against the guide channel 21. In a specific configuration, the vertical arm of the pull arm 43 is fixedly connected to the pull rod shaft 42. The pressing arm is inclined relative to the vertical arm, and the inclination direction is toward the guide channel 21.

[0053] When the abutment arm and the slider are hinged, the slider is hinged to the abutment arm via a ball joint. The ball joint allows the abutment arm to rotate relative to the slider, thus ensuring that the slider remains in contact with the guide channel 21 when the pull rod shaft 42 moves horizontally.

[0054] In one alternative, a pull rod seat is fixed on the outer wall of the housing 10, and the pull rod shaft 42 is slidably mounted on the pull rod seat to limit the sliding direction of the pull rod shaft 42 and ensure stability during driving.

[0055] It should be understood that, in addition to the drive mechanism 40 mentioned above, other drive mechanisms 40 may also be used, such as a linear drive mechanism 41 to drive the pull rod shaft 42, the pull rod shaft 42 being hinged to the guide channel 21 and able to slide relative to the guide channel 21.

[0056] Please refer to the above. Figure 4 and Figure 5 As shown, Figure 5A schematic diagram of the electromagnetic flip plate is shown. The electromagnetic flip plate 20 provided in this embodiment includes a flip plate 22 and a baffle plate 23, wherein the baffle plate 23 forms a flow guiding channel 21. In a specific configuration, an electromagnetic coil is disposed within the flip plate 22, and the magnetism of the flip plate 22 can be controlled by energizing and de-energizing the electromagnetic coil. The baffle plate 23 is exposed outside the housing 10 and forms the flow guiding channel 21.

[0057] In addition, the electromagnetic flip plate 20 also includes a bushing 24, and a shaft head 61 that cooperates with the bushing 24 is provided on the housing 10, so that the electromagnetic flip plate 20 and the housing 10 can be rotated through the cooperation of the bushing 24 and the shaft head 61.

[0058] When the flip plate 22 is hinged to the housing 10, a fixed shaft 60 is provided inside the housing 10. There are two fixed shafts 60, and the two fixed shafts 60 are arranged on opposite sides of the electromagnetic flip plate 20 along the height direction. Each fixed shaft 60 is provided with the aforementioned shaft head 61.

[0059] In one of the alternative solutions, such as Figure 7 As shown, a shoulder 62 is also provided on the fixed shaft 60. The shoulder 62 is used to control the length of the shaft head 61 inserted into the bushing 24, and serves as a limit. In addition, the shaft head 61 is connected to the fixed shaft 60 through a journal 63, and the journal 63 is at a certain bending angle to control the working angle of the electromagnetic flip plate 20, so as to avoid material accumulation or insufficient material dispersion.

[0060] In one alternative solution, continue to refer to Figure 3 and Figure 4 As shown, the iron filings removal device provided in this application embodiment also includes a scraper 70 hinged to the tilting plate 22. The scraper 70 is hinged to the tilting plate 22 at the end of the tilting plate 22 away from the bending plate. When the scraper 70 swings to the third set position, the scraper 70 avoids the material. When the scraper 70 swings to the fourth set position, the scraper 70 guides the iron filings on the tilting plate 22 to the bending plate. Figure 3 and Figure 4 As shown, the scraper 70 is located on the side of the tilting plate 22 away from the baffle plate 23. When the material flows, the length direction of the scraper 70 is along the flow direction of the material, so as to avoid the scraper 70 affecting the flow of the material. When dumping iron filings, the electromagnetic coil is not energized first, and the scraper 70 is rotated so that the scraper 70 scrapes the iron filings to the side close to the guide channel 21. The scraper 70 is tilted and located at the diagonal position of the tilting plate 22. When the electromagnetic coil is de-energized, the iron filings can be guided to the guide channel 21 along the scraper 70, so as to prevent the iron filings from falling back into the material channel 100 after the electromagnetic coil is de-energized.

[0061] Continue to refer to Figure 1As shown, in one optional embodiment, an observation window is provided on the side wall of the housing 10. The observation window is in the shape of a rounded rectangle and is located on the upper sloping surface of the housing 10, which facilitates observation and prevents dust accumulation.

[0062] As can be seen from the description, the iron filings removal device provided in this application embodiment uses multiple guide plates to uniformly divide and disperse the bulk material before it falls into the electromagnetic flip plate 20, thereby preventing ferromagnetic metal foreign objects mixed in the material from being wrapped by the bulk material and flowing downstream.

[0063] Furthermore, the iron filings removal device provided in this application fully utilizes the material retention characteristics of the inclined plane (electromagnetic tilting plate 20), increasing the material's travel time on the surface of the electromagnetic tilting plate 20. This ensures that the material flowing through the electromagnetic tilting plate 20 is thoroughly magnetically separated, preventing ferromagnetic metallic foreign materials from entering the downstream area. Simultaneously, by combining the electromagnetic tilting plate 20 with an electromagnetic coil, the adsorption and discharge of ferromagnetic metallic foreign materials are controlled by switching the electromagnetic coil on and off. When using the electromagnetic tilting plate 20, pneumatic components are used to change its spatial orientation, thereby controlling the sliding direction of the ferromagnetic metallic foreign materials. Moreover, the iron filings removal device provided in this application can be used not only for granular materials but also for powdery materials with poor flowability, avoiding the material blockage phenomenon caused by the density of magnetic rods in traditional magnetic rod-type iron removal devices.

[0064] One or more embodiments of this specification are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of one or more embodiments of this specification should be included within the scope of protection of this disclosure.

[0065] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A device for removing iron filings, characterized in that, include: The container has an inclined material channel; multiple electromagnetic flaps are located within the material channel, and the multiple electromagnetic flaps divide the material channel into multiple parallel sub-channels; The electromagnetic flap is hinged to the box body, and part of the electromagnetic flap is exposed outside the box body. The part of the electromagnetic flap outside the box body is a flow guiding channel; wherein, the axis of the hinge of the electromagnetic flap is inclined relative to the vertical direction. It also includes a drive mechanism for driving the electromagnetic flap to swing. When the electromagnetic flap swings to a first set position, the iron filings adsorbed on the electromagnetic flap can roll to the guide channel and be guided through the guide channel to the collection device outside the box.

2. The iron filings removal device according to claim 1, characterized in that, It also includes a flow guide plate, which is fixed to the box body and used to guide the material to the electromagnetic flap.

3. The iron filings removal device according to claim 2, characterized in that, The guide plate includes a plurality of first guide plates arranged at intervals, and each first guide plate corresponds one-to-one with each electromagnetic flap; wherein, the first guide plate includes a vertical plate and a bent plate connected to the vertical plate and used to guide the material to the corresponding electromagnetic flap. The guide plate also includes a second guide plate, which is disposed opposite to the first guide plate located at the end, and is used to cooperate with the first guide plate to guide the material to the corresponding electromagnetic flap.

4. The iron filings removal device according to claim 1, characterized in that, The drive mechanism includes a pull arm that presses against each flow channel and a drive assembly that drives the pull arm to swing.

5. The iron filings removal device according to claim 4, characterized in that, The drive assembly includes a linear drive mechanism fixed to the outside of the housing, a pull rod shaft fixedly connected to the drive end of the linear drive mechanism, and the pull rod shaft fixedly connected to a plurality of pull arms; wherein the driving direction of the linear drive mechanism is horizontal.

6. The iron filings removal device according to claim 5, characterized in that, The pull arm includes a vertical arm and a pressing arm that is fixedly connected to the vertical arm and inclined toward the flow channel. A slider is hinged to one end of the pressing arm away from the vertical arm, and the slider presses against the flow channel.

7. The iron filings removal device according to claim 6, characterized in that, The slider is hinged to the pressure arm via a ball head.

8. The iron filings removal device according to claim 5, characterized in that, The linear drive mechanism is a pneumatic cylinder, a hydraulic cylinder, or a linear motor.

9. The iron filings removal device according to claim 1, characterized in that, The collection device is a collection box located below the flow channel, and the collection box is fixedly connected to the box body.

10. The iron filings removal device according to any one of claims 1 to 9, characterized in that, The electromagnetic flap includes a flapping plate and an electromagnetic coil built into the flapping plate; it also includes a baffle plate connected to the flapping plate, the baffle plate being exposed outside the housing and used to form the flow guiding channel; It also includes a bushing fixed to the flip plate; The housing is provided with a shaft head that mates with the bushing.

11. The iron filings removal device according to claim 10, characterized in that, It also includes a fixed shaft fixed inside the housing, and the fixed shaft is provided with the shaft head.

12. The iron filings removal device according to claim 10, characterized in that, The electromagnetic flaps are divided into two columns, and the two columns of electromagnetic flaps are arranged on both sides of the axis of the material channel.

13. The iron filings removal device according to claim 10, characterized in that, It also includes a scraper hinged to the tilting plate, the scraper being hinged to the tilting plate at one end of the tilting plate away from the baffle plate; and when the scraper swings to the third set position, the scraper avoids the material; and when the scraper swings to the fourth set position, the scraper guides the iron filings on the tilting plate to the baffle plate.

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