Steel rolling brush equipment and control method thereof

Abstract

The invention relates to steel rolling brush equipment and a control method thereof. The steel rolling brush equipment comprises a rack; the rolling brush assembly comprises a rolling brush and a driving structure, the rolling brush is rotatably arranged on the rack, and the driving structure is arranged on the rack and connected to the rolling brush so as to drive the rolling brush to rotate; the rolling brush is matched with the rack to form a steel plate cleaning space for allowing a steel plate to penetrate through, so that the rolling brush cleans the steel plate located in the steel plate cleaning space, and the length of the rolling brush is larger than or equal to that of the steel plate cleaning space. The rolling brush can completely cover the width of the steel plate, the whole upper surface of the steel plate can make full contact with the rolling brush, the problem that due to insufficient covering of a traditional short rolling brush, edge cleaning leakage and other incomplete cleaning are caused is solved, and thoroughness and uniformity of steel slag cleaning are improved; and the brushing process can be carried out synchronously with the advancing of the steel plate without stopping for alignment or repeated cleaning, so that the operation efficiency of cleaning the steel slag is improved.

Description

Technical Field

[0001] This application relates to the field of steel slag removal technology, and in particular to a steel roller brush device and its control method. Background Technology

[0002] In hot rolling or continuous casting processes, oxide scale rapidly forms on the surface of high-temperature steel plates, and impurities such as steel slag and cooling water scale may adhere to it. If these deposits are not removed in a timely and effective manner, they will increase the burden of subsequent pickling, reduce coating adhesion, and even cause defects such as surface indentations and scratches, seriously affecting product surface quality and yield.

[0003] Currently, some production lines use rotary brush devices to mechanically clean the surface of steel plates. However, existing brush structures generally suffer from a short effective working length, typically only suitable for medium to narrow plates with a width not exceeding 2000mm. When dealing with steel plates 3500mm wide or larger, these brushes cannot achieve full-width coverage in a single pass, resulting in low efficiency and incomplete cleaning. Summary of the Invention

[0004] This application provides a steel roller brush device and its control method, which aims to solve the problems of incomplete cleaning and low efficiency in traditional roller brush structures.

[0005] In a first aspect, embodiments of this application provide a steel roller brush device for cleaning slag from the surface of a moving steel plate, the steel roller brush device comprising:

[0006] frame;

[0007] A roller brush assembly, comprising a roller brush and a drive structure, wherein the roller brush is rotatably mounted on the frame, and the drive structure is mounted on the frame and connected to the roller brush to drive the roller brush to rotate;

[0008] The roller brush cooperates with the frame to form a steel plate cleaning space for the steel plate to pass through, so that the roller brush can clean the steel plate located in the steel plate cleaning space, and the length of the roller brush is greater than or equal to the length of the steel plate cleaning space.

[0009] In some embodiments, the roller brush includes a mounting shaft and a wire structure, the wire structure being disposed on the outer surface of the mounting shaft, and the drive structure being connected to the mounting shaft.

[0010] In some embodiments, the wire structure comprises a plurality of wires, each of which is wound around the outer periphery of the mounting shaft along the same helical path.

[0011] In some embodiments, the steel roller brush device further includes a shielding cover disposed on the frame, the shielding cover having a shielding space having an opening facing the steel plate cleaning space, and at least a portion of the roller brush being disposed within the shielding space.

[0012] In some embodiments, the steel roller brush device includes a lifting assembly, which is movably disposed on the frame along the height direction of the frame, and the roller brush assembly is disposed on the lifting assembly to move with the lifting assembly.

[0013] In some embodiments, the lifting assembly includes a first slider, a second slider, and a drive member. The first slider is disposed on the frame, the second slider is disposed on the roller brush assembly, and the second slider is slidably connected to the first slider along the height direction of the frame. The drive member is disposed on the frame, and the output end of the drive member is connected to the second slider to drive the second slider to slide relative to the first slider.

[0014] In some embodiments, the drive structure includes a drive motor and a universal coupling, wherein the output shaft of the drive motor is connected to the brush assembly via the universal coupling.

[0015] Secondly, this application provides a control method for a steel roller brush device, applied to the steel roller brush device as described above. The steel roller brush device further includes a lifting assembly and a control module. The roller brush assembly is disposed on the lifting assembly, and the control module is electrically connected to the lifting assembly and the drive structure, and is used to execute the steps of the control method of the steel roller brush device. The control method includes:

[0016] Detect the position of the steel plate;

[0017] The working state of the lifting assembly and the drive structure is controlled based on the position of the steel plate.

[0018] In some embodiments, controlling the operating state of the lifting assembly and the drive structure based on the position of the steel plate includes:

[0019] When the steel plate is at the preset cleaning start position, the lifting assembly is controlled to be in a lowering state, which drives the roller brush assembly to descend.

[0020] When the roller brush assembly descends to the preset target position, the lifting assembly is controlled to stop and the drive structure is controlled to run, so as to drive the roller brush to rotate.

[0021] When the steel plate is at the preset cleaning end position, the drive structure is controlled to be in a non-operating state and the lifting component is in an upward state, so as to drive the roller brush component to rise to the preset rising position.

[0022] In some embodiments, the steel roller brush device further includes an air supply component, a solenoid valve, and a pneumatic triplet. The pneumatic triplet is connected to the lifting assembly, the solenoid valve is connected between the pneumatic triplet and the air supply component, and the control module is electrically connected to the solenoid valve and the drive structure. The method includes:

[0023] The solenoid valve is controlled to switch its operating position in order to control the working state of the lifting assembly.

[0024] This application provides a steel roller brush device and its control method. The steel roller brush device includes: a frame; a roller brush assembly, the roller brush assembly including a roller brush and a drive structure. The roller brush is rotatably mounted on the frame, and the drive structure is mounted on the frame and connected to the roller brush to drive the roller brush to rotate. The roller brush and the frame cooperate to form a steel plate cleaning space for a steel plate to pass through, so that the roller brush cleans the steel plate located in the steel plate cleaning space. The length of the roller brush is greater than or equal to the length of the steel plate cleaning space.

[0025] The steel roller brush device provided in this application sets the length of the roller brush to be greater than or equal to the length of the steel plate cleaning space, so that the roller brush can completely cover the width of the steel plate. Therefore, when the steel plate continuously moves through the cleaning space, the entire upper surface of the steel plate can fully contact the roller brush, avoiding the problem of incomplete cleaning such as edge omissions caused by insufficient coverage in traditional short roller brushes, and improving the thoroughness and uniformity of steel slag removal. In addition, the cleaning process can be carried out synchronously with the movement of the steel plate, without the need to stop the machine for alignment or repeated cleaning, thus improving the work efficiency of steel slag removal. Attached Figure Description

[0026] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0027] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0029] Figure 1 This application provides a structural assembly diagram of a steel roller brush device;

[0030] Figure 2 This application provides a structural cross-sectional schematic diagram of a steel roller brush device;

[0031] Figure 3 This application provides a structural assembly diagram of another steel roller brush device;

[0032] Figure 4 A schematic diagram of the structure of the shield provided in this application;

[0033] Figure 5 This is a schematic diagram of the structure of the roller brush provided in this application;

[0034] Figure 6 This application provides a schematic diagram of the structure in which a portion of the steel wire is wound around the mounting shaft;

[0035] Figure 7 This is a structural diagram of the steel wire provided in this application;

[0036] Figure 8 A flowchart illustrating the first embodiment of a control method for a steel roller brush device provided in this application;

[0037] Figure 9 This is a schematic diagram of the structure of a computer device provided in an embodiment of this application.

[0038] Explanation of icon numbers:

[0039] Steel roller brush equipment 10, frame 100, roller brush assembly 200, roller brush 201, mounting shaft 2011, steel wire structure 2012, steel wire 2013, drive structure 202, drive motor 2021, universal coupling 2022, shield 203, shield bracket 204, lifting assembly 300, first sliding member 301, second sliding member 302, slider 3021, sliding beam 3022, drive component 303, steel plate cleaning space 400. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0041] The following disclosure provides numerous different embodiments or examples for implementing various structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed.

[0042] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0043] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the application. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0044] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0045] As used in this specification and the appended claims, the term "if" may be interpreted, depending on the context, as "when," "once," "in response to determination," or "in response to detection." Similarly, the phrases "if determined" or "if [described condition or event] is detected" may be interpreted, depending on the context, as "once determined," "in response to determination," "once [described condition or event] is detected," or "in response to detection of [described condition or event]."

[0046] To address the aforementioned issues, this application provides a steel roller brush device and its control method, which can completely cover the width of the steel plate, ensuring full contact between the roller brush and the entire upper surface of the steel plate. This avoids the problem of incomplete cleaning, such as edge leakage, caused by insufficient coverage in traditional short roller brushes, thus improving the thoroughness and uniformity of steel slag removal. The brushing process can be carried out synchronously with the movement of the steel plate, eliminating the need for machine stoppage for alignment or repeated brushing, thereby improving the efficiency of steel slag removal.

[0047] See Figures 1 to 7 This application provides a steel roller brush device 10 for cleaning the surface of a moving steel plate. The steel roller brush device 10 includes a frame 100 and a roller brush assembly 200.

[0048] The roller brush assembly 200 includes a roller brush 201 and a drive structure 202. The roller brush 201 is rotatably mounted on the frame 100, and the drive structure 202 is mounted on the frame 100 and connected to the roller brush 201 to drive the roller brush 201 to rotate.

[0049] The roller brush 201 cooperates with the frame 100 to form a steel plate cleaning space 400 for the steel plate to pass through, so that the roller brush 201 cleans the steel plate located in the steel plate cleaning space 400, and the length of the roller brush 201 is greater than or equal to the length of the steel plate cleaning space 400.

[0050] The steel roller brush device 10 provided in this embodiment sets the length of the roller brush 201 to be greater than or equal to the length of the steel plate cleaning space 400, so that the roller brush 201 can completely cover the width of the steel plate. As a result, when the steel plate continuously moves through the cleaning space, the entire upper surface of the steel plate can fully contact the roller brush 201, avoiding the problem of incomplete cleaning such as edge omissions caused by insufficient coverage of the traditional short roller brush 201, and improving the thoroughness and uniformity of steel slag removal. In addition, the cleaning process can be carried out synchronously with the movement of the steel plate, without the need to stop the machine for alignment or repeated cleaning, thus improving the work efficiency of steel slag cleaning.

[0051] In some embodiments, the roller brush 201 includes a mounting shaft 2011 and a wire structure 2012, the wire structure 2012 being disposed on the outer surface of the mounting shaft 2011, and the drive structure 202 being connected to the mounting shaft 2011.

[0052] The drive structure 202 (such as the drive motor 2021) is directly connected to the mounting shaft 2011. The power path is short and there are no intermediate transmission links, which can effectively reduce energy loss and transmission gap, and ensure that the rotational torque is stably and evenly transmitted to the entire length of the roller brush 201. It is especially suitable for long roller brushes 201, avoiding the lag of the speed at the far end or the attenuation of the cleaning force.

[0053] The steel wire structure 2012 is directly embedded on the outer surface of the mounting shaft 2011, which can achieve high density and uninterrupted arrangement along the axial direction. Combined with the overall rigid support of the mounting shaft 2011, it ensures that the steel wires are subjected to uniform force and consistent deformation throughout the entire length of the roller brush 201, thereby achieving high-quality surface treatment with uniform pressure distribution and consistent cleaning effect on the wide steel plate.

[0054] In some embodiments, the wire structure 2012 includes a plurality of wires 2013, each of which is wound around the outer periphery of the mounting shaft 2011 along the same helical path.

[0055] In some embodiments, the outer contour of the cross-section of the roller brush 201 is circular.

[0056] In this way, multiple thin stainless steel wires are densely distributed along the outer surface of the mounting shaft 2011, which together form a cylindrical cleaning surface. By using densely arranged thin stainless steel wires to form a cylindrical roller brush 201, the roller brush 201 can flexibly conform to the surface of the steel plate during rotation. While effectively removing steel slag, it can avoid scratching the surface of the steel plate. This roller brush 201 structure is particularly suitable for uniform cleaning of the entire width of large-format plates, taking into account both thorough cleaning and surface protection.

[0057] In some embodiments, the diameter of the steel wire can be in the range of 0.35-0.5 mm. If the diameter of the steel wire is less than 0.35 mm, the strength is insufficient and fatigue fracture is likely to occur under high-speed rotation and repeated impact loads, affecting the stability of continuous operation of the equipment.

[0058] If the diameter of the steel wire is greater than 0.5mm, it will be too rigid. When it comes into contact with the hot steel plate, the local compressive stress will be concentrated, which may scratch the surface of the steel plate or wear down adjacent components such as the roller conveyor.

[0059] Therefore, using fine-diameter stainless steel wire of 0.35–0.5 mm can form a flexible cleaning layer while ensuring sufficient tensile strength and service life, effectively removing oxide scale and steel slag. At the same time, it conforms to the slight undulations on the surface of the steel plate, achieving a balance between efficient cleaning and non-destructive treatment. It is especially suitable for wide hot-rolled steel plates with high surface quality requirements.

[0060] In some embodiments, the steel roller brush device 10 further includes a shield 203 disposed on the frame 100, the shield 203 having a shielding space having an opening facing the steel plate cleaning space 400, and at least a portion of the roller brush 201 being disposed within the shielding space.

[0061] During the rotating cleaning process, the roller brush 201 can easily cause impurities such as steel slag to fly out. The shield 203, by surrounding the upper and side areas of the roller brush 201, confines the splashes within the shielded space, preventing them from spreading to surrounding equipment or work areas and improving the cleanliness of the workshop.

[0062] In addition, the shield 203 encloses the rotating area of ​​the roller brush 201 to prevent operators from accidentally touching high-speed rotating parts during equipment operation, thereby improving operational safety.

[0063] In some embodiments, the steel roller brush device 10 includes a lifting assembly 300, which is movably disposed on the frame 100 along the height direction of the frame 100, and the roller brush assembly 200 is disposed on the lifting assembly 300 to move with the lifting assembly 300.

[0064] The lifting assembly 300 drives the roller brush assembly 200 to move up and down. When the steel plate reaches the preset cleaning position, the roller brush 201 can be actively lowered so that it can gently contact the surface of the steel plate in a controllable manner. After cleaning, the roller brush 201 is lifted in time to avoid the roller brush 201 from spinning and wearing or obstructing the passage of the steel plate. This ensures that the cleaning action is only performed under effective working conditions. In non-working or abnormal working conditions (such as no plate passing or emergency stop triggering), the lifting assembly 300 can quickly lift the roller brush 201 to the upper position to form a safe avoidance space and prevent the roller brush 201 from colliding with the steel plate, roller conveyor or other equipment, effectively protecting the steel wire of the roller brush 201, the drive structure 202 and the surface of the steel plate.

[0065] In some embodiments, the lifting assembly 300 is typically driven by a cylinder or electric push rod, and in conjunction with a pressure regulation or position feedback mechanism, enables the roller brush 201 to maintain a set clamping force after contacting the steel plate. Even if the steel plate has thickness tolerances or surface undulations, it can maintain a consistent cleaning intensity, avoiding localized overpressure scratches or incomplete cleaning due to insufficient pressure.

[0066] The lifting assembly 300 can be automatically triggered by the PLC based on signals from gratings, encoders, or vision sensors, realizing the intelligent control logic of "lowering when there is a plate and raising when there is no plate". It can be seamlessly integrated into the continuous production line to improve the overall level of automation and operating efficiency.

[0067] In some embodiments, the lifting assembly 300 includes a first slider 301, a second slider 302, and a drive member 303. The first slider 301 is disposed on the frame 100, and the second slider 302 is disposed on the roller brush assembly 200. The second slider 302 is slidably connected to the first slider 301 along the height direction of the frame 100. The drive member 303 is disposed on the frame 100, and the output end of the drive member 303 is connected to the second slider 302 to drive the second slider 302 to slide relative to the first slider 301.

[0068] In some embodiments, the drive element 303 is mounted on the frame 100, and its output end is directly connected to the second slider 302. The drive element 303 drives the second slider 302 to slide vertically relative to the first slider 301, thereby causing the entire roller brush assembly 200 to rise or fall. The drive element 303 can be a linear drive device such as a pneumatic cylinder, hydraulic cylinder, or electric cylinder to adapt to different working conditions and configurations.

[0069] When a pneumatic cylinder is selected as the driving component 303, compressed air enters the cylinder chamber through a solenoid valve and a pneumatic triplet, pushing the piston rod to extend and retract, thereby driving the second sliding member 302 and the roller brush assembly 200 to move smoothly. When a hydraulic cylinder is used as the driving component 303, high-pressure oil is supplied through a hydraulic pump station, and the flow direction is adjusted through a directional control valve to drive the hydraulic cylinder piston to generate a large thrust linear motion. When the driving component 303 is an electric cylinder, the electric cylinder drives a lead screw, ball screw, or synchronous belt mechanism through a servo motor or stepper motor to convert rotary motion into precise linear displacement.

[0070] Regardless of whether a pneumatic cylinder, hydraulic cylinder, or electric cylinder is used, the drive component 303 forms a reliable mechanical connection with the second sliding component 302 through its output end, ensuring effective power transmission. A linear guide rail, slider 3021, or guide post can be provided between the first sliding component 301 and the second sliding component 302 to ensure smooth lifting and lowering without swaying.

[0071] In some embodiments, such as Figure 1 As shown, the second sliding member 302 may include a sliding crossbeam 3022 and a slider 3021 connected to each other. The slider 3021 is slidably connected to the first sliding member 301 to realize guided movement along the height direction of the frame. The sliding crossbeam 3022 is provided with a cylinder mounting port. The piston rod of the driving member 303 (such as a lifting cylinder) extends into the cylinder port and is connected to it. When the driving member 303 extends or retracts, it drives the sliding crossbeam 3022 to move up and down, and then drives the slider 3021 to move up and down synchronously through the connecting structure, thereby realizing the vertical movement of the roller brush assembly.

[0072] In some embodiments, the drive structure 202 includes a drive motor 2021 and a universal coupling 2022, and the output shaft of the drive motor 2021 is connected to the roller brush assembly 200 through the universal coupling 2022.

[0073] In some embodiments, the drive motor 2021 may be a helical gear reducer motor.

[0074] Since helical gear reducers can provide stable output with high torque and low speed, universal couplings 2022 can effectively absorb the angular deviation and axial misalignment between the mounting shaft 2011 of the roller brush 201 and the motor output shaft caused by the manufacturing tolerances of the frame 100 and the lifting motion, thus avoiding additional stress, vibration or bearing overload caused by rigid connections.

[0075] Especially for roller brushes with a span of 3500mm or more, slight changes in posture are likely to occur during the bending or lifting of the roller brush 201 under its own weight. Through the flexible coupling of the universal coupling 2022, the power is continuously and smoothly transmitted, which improves the stability, reliability and service life of the equipment, while reducing the stringent requirements for installation accuracy and facilitating on-site assembly and maintenance.

[0076] In some embodiments, the steel roller brush device 10 further includes an air supply component, a pneumatic triplet and a solenoid valve. The air supply component, the pneumatic triplet and the drive component 303 in the lifting assembly 300 are connected in sequence through pipes. The solenoid valve is located on the pipe between the pneumatic triplet and the drive component 303. The control module is electrically connected to the solenoid valve and the drive structure 202.

[0077] The drive unit 303 can be a lifting cylinder. Specifically, the air inlet of the pneumatic triplet is connected to an external compressed air source (i.e., an air supply unit), and the air outlet is connected to one end of the solenoid valve through an air pipe; the other end of the solenoid valve is connected to the air chamber interface of the lifting cylinder to control the extension and retraction of the lifting cylinder.

[0078] The pneumatic triplet is connected between the air supply unit and the lifting cylinder, and is used to pre-treat the gas output from the air supply unit.

[0079] In some embodiments, the pneumatic triplet includes a filter, a speed control valve, and an oil mist lubricator connected in sequence, with the filter connected to the air supply unit and the oil mist lubricator connected to the lifting cylinder.

[0080] The filter is used to filter the incoming compressed air, removing impurities and moisture from the air to ensure the cleanliness of the airflow.

[0081] The speed control valve reduces the pressure of the input high-pressure gas to a pressure range suitable for the operation of the lifting cylinder.

[0082] The oil mist lubricator injects lubricating oil into the airflow to lubricate the cylinder and solenoid valve components, reducing wear on these components.

[0083] Thus, by using a pneumatic triplet to pre-process the gas output from the gas supply component before inputting it into the drive component 303 (such as a lifting cylinder), the stability of the airflow can be improved, thereby achieving a smooth, reliable and controllable lifting motion of the lifting assembly 300.

[0084] In some embodiments, a dual-cylinder configuration may be employed.

[0085] In some embodiments, the power of the drive motor 2021 can be determined based on the torque of the roller brush 201, thereby selecting a suitable model of drive motor 2021.

[0086] For example, the torque of the roller brush 201 can be calculated using the following formula 1:

[0087] T=μFR, formula 1.

[0088] Where T is the driving torque required for the rotation of the roller brush 201, μ is the equivalent friction coefficient between the roller brush 201 and the steel plate surface, which can be taken as 0.3, F is the vertical pressing force (i.e. process pressure) applied by the roller brush 201 to the steel plate, which can be taken as 800N according to the balance requirements of cleaning effect and surface protection, and R is the radius of the roller brush 201, which can be taken as 200mm.

[0089] The power of the drive motor 2021 can be calculated using the following formula 2:

[0090] P = Tω / η, Formula 2.

[0091] Where P is the power of the drive motor 2021, ω is the angular velocity of the roller brush 201, which is calculated from the set speed n. For example, when n = 50 rpm, ω ≈ 5.24 rad / s; η is the total efficiency of the entire transmission system, which can be taken as 0.85.

[0092] In addition, to cope with wide-range starting shocks and load fluctuations, a safety factor of approximately 1.85 can be used. Therefore, the power of the drive motor 2021 can be selected as 0.55KW.

[0093] Additionally, for cylinder selection, please refer to the following:

[0094] The total mass m of the roller brush assembly 200 (including the steel wire structure 2012, the mounting shaft 2011 and the bracket) is approximately 150 kg, and its gravity G = mg = 150 × 9.8 ≈ 1470 N;

[0095] To effectively prevent the roller brush from falling and colliding with the steel plate due to its own weight and to improve safety, the lifting assembly 300 can be equipped with compression springs at both ends of the lifting cylinder as an air cut-off protection measure. When the lifting cylinder is cut off, the compression springs at both ends can provide reliable support force.

[0096] The spring parameters are: outer diameter Do = 90mm, mean diameter Dc = 85mm, wire diameter ds = 10mm, and the preload Fs at each end is designed to be 500N. Therefore, the total preload Fs at both ends is... 总 It is 1000N;

[0097] Considering the frictional resistance Ff (including guide rail sliding friction and sealing resistance), we take Ff = 200N. Therefore, the minimum lifting force required by the cylinder Fc ≥ mg + Fs 总 +Ff=1470+1000+200=2670N.

[0098] A double-acting cylinder is selected, and the working air pressure is set to p = 0.6 MPa. The minimum required cylinder diameter can be obtained according to the following cylinder thrust formula 3:

[0099]

[0100] Thus, dc = 4Fc / (πp) = 4 × 2670 / (3.14 × 0.6 × 10 6 )≈0.075m=75mm.

[0101] Referring to standard cylinder specifications, a double-acting cylinder with a diameter of 80mm can be selected. Under a working pressure of 0.6MPa, its theoretical output thrust is: F 推 =pπdc 2 / 4≈3014N.

[0102] The thrust F 推 It is greater than the required 2670N, meets the load requirements, and has a safety margin of about 13% to ensure reliable and stable lifting operation.

[0103] In some embodiments, high-precision grating sensors can be installed on both sides of the roller conveyor, such as at the front end (starting position) and rear end (ending position) of the cleaning station, to accurately detect the leading edge and tail position of the wide steel plate, thereby triggering the PLC to control the automatic lifting, starting and stopping of the roller brush, etc., to achieve unmanned and highly reliable operation of the entire process.

[0104] To cope with the huge span and load when cleaning steel plates wider than 3500mm, this application is equipped with an extended roller brush of corresponding length and uses a high-rigidity square tube welded frame as a support structure, thereby ensuring that the roller brush effectively covers the steel plate surface in the full range and remains stable during operation, avoiding uneven cleaning or equipment failure due to deflection or vibration.

[0105] Based on the steel roller brush device 10 provided in the above embodiments, this application also provides a control method for the steel roller brush device 10. The steel roller brush device 10 further includes a control module, which is electrically connected to the lifting assembly 300 and the drive structure 202, and is used to execute the steps of the control method for the steel roller brush device 10. (See attached document for further details.) Figure 3 , Figure 3 This is a flowchart illustrating a first embodiment of a control method for a steel roller brush device provided in this application. The control method for the steel roller brush device may include the following steps:

[0106] Step 110: Detect the position of the steel plate.

[0107] Step 120: Based on the position of the steel plate, control the working state of the lifting assembly and the drive structure.

[0108] In some embodiments, controlling the operating state of the lifting assembly and the drive structure based on the position of the steel plate includes:

[0109] Step 121: When the steel plate is at the preset cleaning start position, control the lifting component to descend, thereby driving the roller brush component to descend.

[0110] Step 122: When the roller brush assembly descends to the preset target position, control the lifting assembly to stop and the drive structure to run, so as to drive the roller brush to rotate.

[0111] Step 123: When the steel plate is at the preset cleaning end position, control the drive structure to be in a non-operating state and the lifting component to be in an upward state, so as to drive the roller brush component to rise to the preset rising position.

[0112] In some embodiments, when the steel roller brush device is equipped with a solenoid valve, the working state of the lifting component can be controlled by switching the working position through the solenoid valve.

[0113] In some embodiments, the solenoid valve may be a three-position five-way solenoid valve.

[0114] Specifically, when the steel plate is at the preset cleaning start position, the solenoid valve is controlled to the first working position so that the lifting assembly descends, thereby driving the roller brush assembly to descend.

[0115] When the roller brush assembly is detected to have descended to the preset target position, the solenoid valve is switched to the second working position to control the lifting assembly to stop descending and to control the drive structure to work so as to drive the roller brush to rotate.

[0116] When the steel plate is detected to be at the preset cleaning end position, the drive structure is controlled to stop working and the solenoid valve is switched to the third working position so that the lifting component rises and drives the roller brush component to rise to the preset rising position.

[0117] Based on the steel roller brush equipment and control method provided in the above embodiments, taking a three-position five-way solenoid valve as an example, the control method of the steel roller brush equipment provided in this application can be referred to the following specific operation:

[0118] 1) System power-on and initialization:

[0119] Connect the power supply and compressed air source. Adjust the air supply pressure to the set value (e.g., 0.6 MPa) using the air supply triplet.

[0120] After the PLC starts, it executes a self-test program: confirming that the three-position five-way solenoid valve is in the neutral position (achieving cylinder locking), reading the status of the grating sensor, and checking the communication and enable status of the motor driver. If there are no abnormalities, the PLC controls the lifting assembly to raise the roller brush to the preset "upper position" and lock it, entering standby mode.

[0121] 2) Standby and steel plate inspection:

[0122] The system enters a cyclic standby mode, where grating sensor groups installed at the roller conveyor entrance and on both sides of the cleaning station continuously monitor the steel plate's movement. When the leading edge of the steel plate reaches the "pre-trigger position," the grating signal changes, and the PLC records this signal to prepare for subsequent actions.

[0123] 3) Cleaning start determination:

[0124] As the steel plate continues to move forward, the PLC determines that its leading edge has reached the preset "cleaning start position" based on the grating signal, and then starts the cleaning operation sequence.

[0125] 4) The roller brush falls and makes contact with the flexible surface:

[0126] The PLC outputs a control signal to drive the three-position five-way solenoid valve to switch to the "lowering" working position. Compressed air enters the upper chamber of the lifting cylinder through the speed control valve (whose opening degree has been preset according to process requirements), and the piston rod drives the roller brush assembly to descend smoothly.

[0127] By adjusting the flow rate of the exhaust-side speed control valve, the descent speed of the roller brush assembly is precisely controlled, ensuring that the roller brush approaches the steel plate surface in a low-speed and gentle manner.

[0128] After the roller brush contacts the steel plate, the lifting cylinder continues to descend under system pressure until the preset process bonding force is reached. This pressure can be indirectly controlled by the set value of the air source pressure reducing valve, or by real-time feedback from the cylinder pressure sensor to achieve closed-loop regulation. Once in position, the PLC can choose to switch the solenoid valve to the neutral position to maintain pressure, or maintain the descent signal to keep the pressure stable.

[0129] In this way, the three-position five-way solenoid valve, in conjunction with the speed control valve, can precisely control the descent speed of the lifting cylinder, avoiding impact on the surface of the steel plate.

[0130] 5) Cleaning operation execution:

[0131] The PLC synchronously starts the helical gear reducer motor the instant the roller brush completes its descent or contacts the steel plate. The helical gear reducer motor drives the roller brush to rotate at a constant speed (e.g., 50 rpm) through a universal coupling, continuously cleaning the surface of the moving steel plate.

[0132] 6) Steel plate separation detection and roller brush lifting:

[0133] When the grating sensor detects that the tail of the steel plate has passed the preset "cleaning end position", the PLC starts an adjustable delay timer (e.g., 2 seconds) to ensure that the tail is completely cleaned. After the delay ends, the PLC first stops the motor and then controls the three-position five-way solenoid valve to switch to the "lift" position. Compressed air enters the lower chamber of the lifting cylinder, driving the roller brush to quickly return to the "upper position".

[0134] Once the upper proximity switch confirms that the position is in place, the three-position five-way solenoid valve automatically switches to the middle position, the two chambers of the lifting cylinder are closed, achieving mechanical locking, and the system returns to standby mode, waiting for the next steel plate to arrive.

[0135] The following security protection mechanisms can be adopted throughout the entire operation process:

[0136] 1) Gas cut-off protection: If the working air source pressure is lower than the safety threshold, the cylinder loses pressure and the roller brush falls due to its own weight. At this time, the large and medium diameter compression springs (with a total preload of about 1000N) installed at both ends of the lifting assembly automatically lift the roller brush bracket and keep it stably suspended at a safe height to avoid damaging the steel plate or equipment.

[0137] 2) Emergency Stop and Fault Response: At any stage of operation, once the emergency stop button is triggered or the PLC detects a serious fault (such as motor overload, sensor failure, communication interruption, etc.), the system immediately cuts off the motor output and switches the solenoid valve to the neutral position (or switches to the lifting position according to the safety strategy) to ensure that the roller brush stops moving and maintains its current position or is lifted by spring assistance, thus ensuring the safety of personnel and equipment.

[0138] Corresponding to the control method of the steel roller brush equipment described above, this application also provides a control device for the steel roller brush equipment. This control device includes a unit for executing the control method described above, and can be configured in a desktop computer, tablet computer, laptop computer, or other terminal.

[0139] like Figure 4 As shown in the figure, this application provides a computer device including a processor 111, a communication interface 112, a memory 113, and a communication bus 114, wherein the processor 111, the communication interface 112, and the memory 113 communicate with each other through the communication bus 114.

[0140] Memory 113 is used to store computer programs;

[0141] In one embodiment of this application, the processor 111, when executing a program stored in the memory 113, implements the control method of the steel roller brush device provided in any of the foregoing method embodiments, including:

[0142] Detect the position of the steel plate;

[0143] The working state of the lifting assembly and the drive structure is controlled based on the position of the steel plate.

[0144] It will be understood by those skilled in the art that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program may be stored in a storage medium, which is a computer-readable storage medium. The computer program is executed by at least one processor in the computer system to implement the process steps of the embodiments of the above methods.

[0145] Therefore, this application also provides a computer-readable storage medium storing a computer program thereon, which, when executed by a processor, implements the steps of the control method for the steel roller brush device provided in any of the foregoing method embodiments, including:

[0146] Detect the position of the steel plate;

[0147] The working state of the lifting assembly and the drive structure is controlled based on the position of the steel plate.

[0148] The storage medium is a physical, non-transient storage medium, such as a USB flash drive, external hard drive, read-only memory (ROM), magnetic disk, or optical disk, or any other physical storage medium capable of storing program code. The computer-readable storage medium can be non-volatile or volatile.

[0149] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of both. To clearly illustrate the interchangeability of hardware and software, the components and steps of the various examples have been generally described in terms of functionality in the foregoing description. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementations should not be considered beyond the scope of this application.

[0150] In the several embodiments provided in this application, it should be understood that the disclosed apparatus and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative. For example, the division of each unit is merely a logical functional division, and there may be other division methods in actual implementation. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed.

[0151] The steps in the methods of this application embodiment can be adjusted, merged, or deleted according to actual needs. The units in the apparatus of this application embodiment can be merged, divided, or deleted according to actual needs. Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0152] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, a terminal, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application.

[0153] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0154] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Since these modifications and variations fall within the scope of the claims and their equivalents, this application also intends to include these modifications and variations.

[0155] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered 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 steel roller brush device, characterized in that, The steel roller brush device is used for cleaning slag from the surface of a moving steel plate. frame; A roller brush assembly, comprising a roller brush and a drive structure, wherein the roller brush is rotatably mounted on the frame, and the drive structure is mounted on the frame and connected to the roller brush to drive the roller brush to rotate; The roller brush cooperates with the frame to form a steel plate cleaning space for the steel plate to pass through, so that the roller brush can clean the steel plate located in the steel plate cleaning space, and the length of the roller brush is greater than or equal to the length of the steel plate cleaning space.

2. The steel roller brush equipment according to claim 1, characterized in that, The roller brush includes a mounting shaft and a steel wire structure, the steel wire structure being disposed on the outer surface of the mounting shaft, and the drive structure being connected to the mounting shaft.

3. The steel roller brush equipment according to claim 2, characterized in that, The wire structure comprises a plurality of wires, each of which is wound around the outer periphery of the mounting shaft along the same helical path.

4. The steel roller brush equipment according to claim 1, characterized in that, The steel roller brush device further includes a shield, which is disposed on the frame and has a shielding space. The shielding space has an opening facing the steel plate cleaning space, and at least a portion of the roller brush is disposed within the shielding space.

5. The steel roller brush equipment according to claim 1, characterized in that, The steel roller brush equipment includes a lifting assembly, which is movably mounted on the frame along the height direction of the frame. The roller brush assembly is mounted on the lifting assembly to move with the lifting assembly.

6. The steel roller brush equipment according to claim 5, characterized in that, The lifting assembly includes a first sliding member, a second sliding member, and a driving member. The first sliding member is disposed on the frame, the second sliding member is disposed on the roller brush assembly, and the second sliding member is slidably connected to the first sliding member along the height direction of the frame. The driving member is disposed on the frame, and the output end of the driving member is connected to the second sliding member to drive the second sliding member to slide relative to the first sliding member.

7. The steel roller brush equipment according to claim 1, characterized in that, The drive structure includes a drive motor and a universal coupling, and the output shaft of the drive motor is connected to the roller brush assembly through the universal coupling.

8. A control method for a steel roller brush device, characterized in that, The steel roller brush device as described in any one of claims 1-7 further includes a lifting assembly and a control module. The roller brush assembly is disposed on the lifting assembly, and the control module is electrically connected to the lifting assembly and the drive structure, and is used to execute the steps of the control method of the steel roller brush device, the control method including: Detect the position of the steel plate; The working state of the lifting assembly and the drive structure is controlled based on the position of the steel plate.

9. The method according to claim 8, characterized in that, The control of the operating state of the lifting assembly and the drive structure based on the position of the steel plate includes: When the steel plate is at the preset cleaning start position, the lifting assembly is controlled to be in a lowering state, which drives the roller brush assembly to descend. When the roller brush assembly descends to the preset target position, the lifting assembly is controlled to stop and the drive structure is controlled to run, so as to drive the roller brush to rotate. When the steel plate is at the preset cleaning end position, the drive structure is controlled to be in a non-operating state and the lifting component is in an upward state, so as to drive the roller brush component to rise to the preset rising position.

10. The method according to claim 9, characterized in that, The steel roller brush device further includes an air supply component, a solenoid valve, and a pneumatic triplet. The pneumatic triplet is connected to the lifting assembly. The solenoid valve is connected between the pneumatic triplet and the air supply component. The control module is electrically connected to the solenoid valve and the drive structure. The method includes: The solenoid valve is controlled to switch its operating position in order to control the working state of the lifting assembly.

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