Heavy-duty brushing device for brushing the surface of a steel strip

Abstract

The application discloses a heavy brushing device for brushing the surface of a steel strip and relates to the field of surface treatment of the steel strip. The device comprises a workbench, a rack welded to the upper surface of the workbench, a shell arranged on one side of each brush roller between the racks, screw-fixed ends of each shell to the wall of the rack, an arc surface of each shell facing the brush roller and provided with an opening, a brush hair cleaning assembly arranged at the bottom of the opening of each shell, the brush hair cleaning assembly being used for cooperating with the rotation of the brush roller and cleaning the embedded oxide scale between the transversely moving cleaning brushes, a horizontal wire scraping plate arranged above the brush hair cleaning assembly in the opening of each shell, and the wire scraping plate being used for pre-combing the brushes. The application can efficiently strip the loose impurities on the surface of the brush and the embedded oxide scale at the root, can maintain the cleanliness and brushing activity of the brush, can eliminate the surface scratch of the steel strip caused by the impurity adhesion, and can improve the quality of the surface brushing of the steel strip.

Description

Technical Field

[0001] This invention relates to the technical field of steel strip surface treatment, specifically a heavy-duty brushing device for brushing the surface of steel strips. Background Technology

[0002] Re-brushing equipment is mainly used in pickling areas to remove the dense oxide scale (Fe3O4, FeO, etc.) formed on the surface of hot-rolled strip steel, avoiding defects in subsequent processing caused by oxide scale residue (such as cold-rolled peeling, insufficient coating adhesion). For different steel grades (such as IF steel for automotive outer panels requiring low roughness, and DP steel for construction machinery requiring a certain roughness to enhance coating adhesion), the equipment reduces the surface roughness of the strip steel by selecting the brush type, adjusting the speed, and controlling the amount of pressure, while eliminating minor scratches and pits on the strip steel surface and improving surface smoothness.

[0003] A heavy-duty scrubbing machine described in the prior art includes: a worktable; a drive unit disposed at one end of the worktable; a cooling unit disposed at the other end of the worktable; and a roller brush unit inserted into the cooling unit, one end of which is connected to one end of the drive unit. The roller brush unit is used to grind the steel strip. When the drive unit is working, it can drive the roller brush unit to work, and the cooling unit is used to reduce the temperature of the roller brush unit.

[0004] While the above technology can avoid interference between the upper and lower brushes and vibration of the strip during the brushing process, and the first and second brush rollers can move laterally to ensure uniform grinding, the brushes are prone to embedding impurities such as iron oxide scale during the brushing process of the steel strip surface. Long-term accumulation will cause the brushes to clump and lose elasticity, which will not only reduce the efficiency of subsequent brushing, but also easily scratch the surface of the steel strip, forming a vicious cycle of cleaning, residue and secondary damage. Summary of the Invention

[0005] Based on this, the purpose of the present invention is to provide a heavy-duty brushing device for brushing the surface of steel strips, so as to solve the technical problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A heavy-duty brushing device for brushing the surface of steel strip includes a workbench with a frame welded to its upper surface. Two sets of brush rollers are symmetrically arranged in the frame, each set including two adjustable brush rollers (upper and lower). A support plate and a roller changing trolley are respectively provided on both sides of the frame on the upper surface of the workbench. A mounting seat is movably provided on the support plate, and four variable frequency motors for driving the brush rollers are mounted on the mounting seat. A lateral movement component for controlling the lateral movement of the brush roller sets is provided below the support plate. A housing is provided on one side of each brush roller between the frames. Both ends of each housing are fixed to the wall of the frame with screws. The side of each housing facing the brush roller is arc-shaped and has an opening. A bristle cleaning component is provided at the bottom of the opening of each housing. The bristle cleaning component is used to clean iron oxide scale embedded between the brushes in conjunction with the rotation and lateral movement of the brush rollers.

[0008] Each of the housings has a horizontal scraper plate located above the bristle cleaning assembly within its opening, the scraper plate being used to pre-comb the bristles.

[0009] Specifically, the brush cleaning assembly includes a collection frame, the outer wall of which is slidably connected to the inner wall of the housing. An inclined toothed plate is integrally fixed on the side of the collection frame near the brush roller. The teeth of the toothed plate are inserted into the gaps between the brushes of the brush roller. A filter screen is detachably installed inside the collection frame. Water permeable holes are provided on the bottom wall of both the collection frame and the housing. Multiple sensors are embedded in the toothed plate, and the multiple sensors are evenly distributed in several toothed openings.

[0010] Specifically, in this technical solution, a top plate is fixed to the top of the collection frame on the side away from the toothed plate. A protective shell is installed on the upper surface of the top plate by screws. A horizontal plate is installed on the top of the protective shell near the brush roller by screws. A movable groove is opened on the side of the horizontal plate near the brush roller. The scraper plate is inserted into the movable groove and is slidably connected. A support plate is fixed on the lower surface of the horizontal plate on one side of the protective shell.

[0011] Specifically, in this technical solution, a plurality of push plates are fixed on the side of the scraper away from the cutting edge. The plurality of push plates are inserted into the protective shell through the movable groove. A return spring is provided between the plurality of push plates. The two ends of the plurality of return springs are respectively fixedly connected to the outer wall of the scraper and the groove wall of the movable groove. A lifting plate is provided inside the protective shell. A plurality of push blocks corresponding to the push plates are fixed on the upper surface of the lifting plate. The lower corner of the end face of the plurality of push plates is set as a first guide slope. The top side of the plurality of push blocks is set as a second guide slope. The first guide slope and the second guide slope are in sliding contact. Three adjusting cylinders are provided inside the protective shell below the lifting plate. The three adjusting cylinders are all fixed to the inner bottom wall of the protective shell by screws. The telescopic ends of the three adjusting cylinders are all fixedly connected to the lower surface of the lifting plate by screws.

[0012] Specifically, in this technical solution, the cutting edge of the scraper is inserted into the gap between the brushes of the brush roller, and the cutting edge is rounded.

[0013] Specifically, in this technical solution, an arc-shaped baffle is provided above the scraper plate in the opening of each housing. The outer walls of the two sides and the top of each arc-shaped baffle are fixed to the inner wall of the housing with screws. The bottom wall of the arc-shaped baffle is in close contact with the upper surface of the horizontal plate in the brush cleaning assembly.

[0014] Specifically, in this technical solution, a movable plate is provided inside the opening of each housing on one side of the arc-shaped baffle. The bottom end of the movable plate is fixed to the upper surface of the horizontal plate with screws. Three feed cylinders are provided on the side of the movable plate away from the arc-shaped baffle. All three feed cylinders are fixedly connected to the inner wall of the housing with screws. The extension and retraction ends of the three feed cylinders are fixedly connected to the movable plate with screws.

[0015] Specifically, in this technical solution, guide rods are provided between the three feed cylinders, two of the guide rods penetrate the movable plate, and the two ends of the two guide rods are respectively fixedly connected to the outer wall of the arc-shaped baffle and the inner wall of the housing.

[0016] Specifically, the transverse component includes a geared motor, which is bolted to the upper surface of the support plate on the side away from the frame. Linear guide rails are fixed to both sides of the upper surface of the support plate by screws. The lower surface of the mounting base is slidably mounted on the linear guide rails by sliders. The output end of the geared motor is connected to a ball screw through a coupling. The ball screw passes through the mounting base and is threadedly connected.

[0017] Specifically, in this technical solution, the output ends of the four variable frequency motors are all connected to the corresponding brush roller flanges. On the walls on both sides of the frame, guide rail brackets are fitted on the outer sides of both ends of the brush rollers. Each guide rail bracket is equipped with an independent pressing adjustment unit to precisely adjust the position of the upper and lower brush rollers and the steel strip. Four spray pipes are provided between the two brush roller groups. The four spray pipes are all connected to an external water supply source through conduits. The nozzles of the four spray pipes face the surface of the steel strip.

[0018] In summary, the present invention has the following beneficial effects: by linking the pre-combing of the scraper plate with the deep cleaning of the toothed plate, it can efficiently remove loose impurities on the surface of the brush and iron oxide scale embedded in the root, avoiding the brush clumping and elasticity loss caused by long-term accumulation of impurities. It maintains the cleanliness and brushing activity of the brush, ensures stable subsequent brushing efficiency, and eliminates scratches on the steel strip surface caused by impurity adhesion, thereby improving the quality of steel strip surface brushing.

[0019] The scraper blade, through the movable design of the push plate and push block, can avoid hard contact damage to the brush from the fixed comb. The sensor embedded in the tooth plate provides real-time feedback of wear data, which, together with the feed cylinder, enables precise adaptation of the cleaning components, ensuring that brushes with different wear levels can effectively contact the cleaning components. At the same time, the protective space formed by the enclosed shell and the arc-shaped baffle prevents the splashing of iron oxide scale during the cleaning process, avoiding secondary pollution. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the orthogonal axonometric structure of the scrubbing device of the present invention;

[0021] Figure 2 For the present invention Figure 1 Enlarged view of point A in the image;

[0022] Figure 3 For the present invention Figure 1 Enlarged view of point B in the image;

[0023] Figure 4 This is a schematic diagram of the main structure of the scrubbing device of the present invention;

[0024] Figure 5 This is a side view of the scrubbing device of the present invention.

[0025] Figure 6 This is a top view of the scrubbing device of the present invention;

[0026] Figure 7 This is a schematic diagram of the shell opening cross-section structure of the present invention;

[0027] Figure 8 This is a schematic diagram of the shell disassembly structure of the present invention;

[0028] Figure 9 For the present invention Figure 8 Enlarged view at point C;

[0029] Figure 10 This is a schematic diagram of the side cross-sectional structure of the housing of the present invention;

[0030] Figure 11 This is a schematic diagram of the push plate and push block classification structure of the present invention.

[0031] Figure Descriptions: 1. Workbench; 101. Frame; 1011. Brush Roller Assembly; 102. Bearing Plate; 1021. Linear Guide Rail; 103. Mounting Base; 1031. Slider; 1032. Variable Frequency Motor; 2. Guide Rail Bracket; 201. Pressing Adjustment Unit; 3. Roller Changing Trolley; 4. Gear Motor; 401. Ball Screw; 5. Spray Pipe; 6. Housing; 601. Arc-shaped Baffle; 7. Scraper Plate; 701. Return Spring; 702. Push Plate; 7 03. First guide slope; 8. Feed cylinder; 801. Movable plate; 802. Guide rod; 9. Brush cleaning assembly; 901. Collection frame; 9011. Filter screen; 9012. Water permeable hole; 9013. Top plate; 902. Toothed plate; 903. Protective shell; 9031. Adjusting cylinder; 9032. Lifting plate; 9033. Push block; 9034. Second guide slope; 904. Support plate; 905. Horizontal plate; 9051. Movable groove. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0033] The embodiments of the present invention will now be described.

[0034] It should be noted that all electrical components in this application are powered by an external power source and connected to corresponding control switches to achieve independent control of each component. Four variable frequency motors 1032 drive the brush rollers to rotate; their speed can be adjusted according to the requirements of different steel grades to achieve the best brushing effect. The geared motor 4 serves as the power source for the lateral movement assembly. Through the cooperation of the ball screw 401, slider 1031, and linear guide rail 1021, it can precisely control the lateral movement of the brush roller assembly 1011, enabling the brush rollers to perform uniform brushing on the steel strip surface.

[0035] In actual use, operators can operate each electrical component by controlling the switch according to specific washing needs. In addition, to ensure the safe operation of the device, overload protection, leakage protection and other safety devices can be installed in the circuit. When an electrical component is overloaded or leaks current, the safety device will automatically cut off the power supply to avoid equipment damage and personal injury. Regularly inspecting and maintaining the electrical components and replacing aging or damaged parts in a timely manner are also important measures to ensure the normal operation of the device.

[0036] In this embodiment, please refer to Figure 1 - Figure 6 As shown, a heavy-duty brushing device for brushing the surface of steel strip includes a workbench 1. A frame 101 is welded to the upper surface of the workbench 1. Two sets of brush roller groups 1011 are symmetrically arranged in the frame 101. Each set of brush roller groups 1011 includes two adjustable brush rollers, one above the other. A support plate 102 and a roller changing trolley 3 are respectively provided on both sides of the frame 101 on the upper surface of the workbench 1. A mounting seat 103 is movably provided on the support plate 102. Four variable frequency motors 1032 for driving the brush rollers are installed on the mounting seat 103. Below the support plate 102, there is a... There is a transverse movement component for controlling the transverse movement of the brush roller group 1011. The output ends of the four variable frequency motors 1032 are all connected to the corresponding brush roller flanges. On the walls on both sides of the frame 101, guide rail brackets 2 are fitted on the outer side of both ends of the brush rollers. Each guide rail bracket 2 is equipped with an independent pressing adjustment unit 201 to precisely adjust the position of the upper and lower brush rollers and the steel strip. There are four spray pipes 5 between the two brush roller groups 1011. The four spray pipes 5 are all connected to the external water supply source through conduits. The nozzles of the four spray pipes 5 face the surface of the steel strip.

[0037] The transverse assembly includes a geared motor 4, which is bolted to the upper surface of the support plate 102 on the side away from the frame 101. Linear guide rails 1021 are fixed to both sides of the upper surface of the support plate 102 by screws. The lower surface of the mounting base 103 is slidably mounted on the linear guide rails 1021 by sliders 1031. The output end of the geared motor 4 is connected to a ball screw 401 through a coupling. The ball screw 401 passes through the mounting base 103 and is threaded. Support bearings are provided at both ends of the ball screw 401 to reduce rotational friction. Switches are also installed at both ends of the ball screw 401, corresponding to the left and right limit positions of the transverse movement, respectively.

[0038] Each frame 101 has a housing 6 on one side of each brush roller. Both ends of each housing 6 are fixed to the wall of the frame 101 with screws. The side of each housing 6 facing the brush roller is arc-shaped and has an opening. Each housing 6 has a bristle cleaning component 9 at the bottom of the opening. The bristle cleaning component 9 is used to clean the iron oxide scale embedded between the brushes by cooperating with the rotation and lateral movement of the brush roller.

[0039] Each housing 6 has a horizontal scraper 7 located above the bristle cleaning assembly 9 in its opening. The scraper 7 is used to pre-comb the bristles.

[0040] In actual operation, the steel strip is first placed between two sets of brush rollers 1011 (placed by auxiliary devices such as inlet and outlet squeeze rollers). The position of the upper and lower brush rollers and the steel strip is precisely adjusted by the pressing adjustment unit 201 on the guide rail bracket 2 so that the brush rollers are in full contact with the surface of the steel strip. Then, four variable frequency motors 1032 are started to drive the corresponding brush rollers to rotate and brush the surface of the steel strip. At the same time, the reduction motor 4 in the transverse component is started. The reduction motor 4 drives the ball screw 401 to rotate. Since the ball screw 401 is threadedly connected to the mounting base 103, the mounting base 103 will move linearly along the linear guide rail 1021 under the cooperation of the slider 1031 and the linear guide rail 1021, thereby realizing the transverse movement of the brush roller set 1011 and ensuring the comprehensive brushing of the steel strip surface.

[0041] During the rotation and lateral movement of the brush roller, the scraper plate 7 inside the housing 6 on one side works synchronously with the bristle cleaning assembly 9 to achieve dynamic cleaning of the brush: the cutting edge of the scraper plate 7 pre-combs the tangled impurities, while the toothed plate 902 below inserts into the gap between the brushes as the brush roller rotates, thoroughly scraping away the iron oxide scale embedded at the root. The scraped impurities fall directly into the collection frame 901. During the cleaning process, the spray pipe 5 sprays water onto the surface of the steel strip, cooling the brush roller and the steel strip on one hand, and washing away the iron oxide scale and other impurities on the other. After the brushing is completed, the adjustment unit 201 is pressed down to drive the brush. The roller is lifted, and the lateral movement component drives the brush roller group 1011 back to its initial position. If the brush roller needs to be replaced, it can be quickly disassembled and assembled through the roller changing trolley 3 on one side of the frame 101, ensuring production continuity. The roller changing trolley 3 adopts existing technology and is mainly composed of a base, sliding rail, base drive device, roller changing platform, lifting device, and roller changing device. The base drive device is installed at the bottom of the base. Driven by the drive motor, the roller changing trolley 3 can move along the direction of the unit. A pair of hydraulic lifting platforms are installed between the roller changing platform and the base to control the lifting of the roller changing platform. The roller changing device has only one roller changing position.

[0042] This effectively removes loose impurities from the brush surface and iron oxide scale embedded at the base, preventing the brush from clumping and losing elasticity due to long-term accumulation of impurities. It maintains the cleanliness and brushing activity of the brush, ensuring stable subsequent brushing efficiency, and also eliminates scratches on the steel strip surface caused by impurities, thus improving the quality of steel strip surface brushing.

[0043] Please see Figure 7 - Figure 10As shown, the brush cleaning assembly 9 includes a collection frame 901, the outer wall of which is slidably connected to the inner wall of the housing 6. An inclined toothed plate 902 is integrally fixed to the side of the collection frame 901 near the brush roller. The teeth of the toothed plate 902 are inserted into the gaps between the brush bristles of the brush roller. A filter screen 9011 is detachably installed inside the collection frame 901. Both the collection frame 901 and the bottom wall of the housing 6 have water-permeable holes 9012. Multiple sensors are embedded in the toothed plate 902, and these sensors are evenly distributed. The top plate 9013 is fixed on the side of the top of the collection frame 901 away from the tooth plate 902, which is distributed in several toothed openings. A protective shell 903 is installed on the upper surface of the top plate 9013 by screws. A horizontal plate 905 is installed on the top of the side of the protective shell 903 near the brush roller by screws. A movable groove 9051 is opened on the side of the horizontal plate 905 near the brush roller. The scraper 7 is inserted into the movable groove 9051 and is slidably connected. A support plate 904 is fixed on the lower surface of the horizontal plate 905 on one side of the protective shell 903.

[0044] A plurality of push plates 702 are fixed on the side of the scraper 7 away from the cutting edge. The push plates 702 are inserted into the protective shell 903 through the movable groove 9051. A return spring 701 is provided between the push plates 702. The two ends of the return spring 701 are fixedly connected to the outer wall of the scraper 7 and the groove wall of the movable groove 9051, respectively. The cutting edge of the scraper 7 is inserted into the brush gap of the brush roller, and the cutting edge is rounded. A lifting plate 9032 is provided inside the protective shell 903. A plurality of corresponding push plates 702 are fixed on the upper surface of the lifting plate 9032. The end face of the push block 9033 and several push plates 702 are all set as first guide slopes 703, and the top side of several push blocks 9033 is set as second guide slopes 9034. The first guide slopes 703 and the second guide slopes 9034 slide in contact. Inside the protective shell 903, below the lifting plate 9032, there are three adjusting cylinders 9031. The three adjusting cylinders 9031 are all fixed to the inner bottom wall of the protective shell 903 by screws. The telescopic ends of the three adjusting cylinders 9031 are all fixedly connected to the lower surface of the lifting plate 9032 by screws.

[0045] An arc-shaped baffle 601 is provided above the scraper plate 7 in the opening of each housing 6. The outer walls of the two sides and the top of each arc-shaped baffle 601 are fixed to the inner wall of the housing 6 with screws. The bottom wall of the arc-shaped baffle 601 is in close contact with the upper surface of the horizontal plate 905 in the brush cleaning assembly 9. A movable plate 801 is provided on one side of the arc-shaped baffle 601 in the opening of each housing 6. The bottom end of the movable plate 801 is fixed to the upper surface of the horizontal plate 905 with screws. Three feed cylinders 8 are provided on the side of the movable plate 801 away from the arc-shaped baffle 601. The three feed cylinders 8 are fixed to the inner wall of the housing 6 with screws. The telescopic ends of the three feed cylinders 8 are fixed to the movable plate 801 with screws. A guide rod 802 is provided between the three feed cylinders 8. The two guide rods 802 pass through the movable plate 801, and the two ends of the two guide rods 802 are fixed to the outer wall of the arc-shaped baffle 601 and the inner wall of the housing 6, respectively.

[0046] When the brush roller rotates and washes, the rounded edge of the scraper 7 is pre-inserted into the gap between the brushes to pre-comb the tangled impurities. Meanwhile, the toothed plate 902 below is embedded into the gap between the brushes as the brush roller rotates, thoroughly scraping off the iron oxide scale embedded at the root. The scraped-off impurities fall directly into the collection frame 901. After being filtered by the filter screen 9011, the cleaning liquid is discharged through the water-permeable holes 9012 on the bottom wall of the housing 6 through the collection frame 901, achieving solid-liquid separation. Multiple sensors embedded in the toothed plate 902 detect the contact frequency between the brush and the toothed plate in real time, indirectly judging the amount of brush wear. When the sensors detect a change in the wear data of the toothed plate 902, they will promptly feed the signal back to the control system. Based on the feedback data, the control system pushes the movable plate 801 along the guide rod 802 through the feed cylinder 8, driving the horizontal plate 905 and the entire brush cleaning assembly 9 to fine-tune the feed amount and adjust the contact position between the toothed plate 902 and the scraper 7 and the brush roller brush, ensuring stable cleaning effect under different wear conditions.

[0047] Furthermore, when the scraper plate 7 performs pre-cleaning of the brush rollers, the three adjusting cylinders 9031 drive the lifting plate 9032 to rise and fall, causing the push block 9033 to slide into contact with the first guide slope 703 of the push plate 702 through the second guide slope 9034, pushing the scraper plate 7 to move laterally along the movable groove 9051 of the horizontal plate 905. At the same time, the return spring 701 is compressed or released, so that the scraper plate 7 performs reciprocating combing action in the gap between the brushes, combing out impurities in different directions and positions, which can more comprehensively clean the impurities entangled between the brushes and avoid the accumulation of impurities in local positions. The return spring 701 plays a buffering and resetting role in this process, ensuring that the movement of the scraper plate 7 is stable and regular.

[0048] This avoids hard contact damage to the brush caused by fixed combing, while the protective space formed by the enclosed shell 6 and the arc-shaped baffle 601 prevents the splashing of iron oxide scale during the cleaning process and avoids secondary pollution.

[0049] The working principle of this invention is as follows:

[0050] First, the steel strip is placed between two sets of brush rollers 1011 through the inlet and outlet squeeze rollers. The position of the upper and lower brush rollers and the steel strip is precisely adjusted by the pressing adjustment unit 201 on the guide rail bracket 2 to ensure that the brush rollers are in full contact with the surface of the steel strip. Then, water is sprayed from the spray pipe 5, and four variable frequency motors 1032 are started to drive the corresponding brush rollers to rotate and brush the surface of the steel strip. At the same time, the reduction motor 4 in the transverse component is started, and the reduction motor 4 drives the ball screw 401 to rotate. Since the ball screw 401 is threadedly connected to the mounting base 103, the mounting base 103 will move linearly along the linear guide rail 1021 with the cooperation of the slider 1031 and the linear guide rail 1021, thereby realizing the transverse movement of the brush roller set 1011 and ensuring that the surface of the steel strip is thoroughly brushed. The water sprayed from the spray pipe 5 cools the brush rollers and the steel strip on the one hand, and washes away the iron oxide scale and other impurities that have been cleaned off on the other hand.

[0051] During the rotation and lateral movement of the brush roller, the rounded cutting edge of the scraper 7 is pre-inserted into the brush gap to pre-comb the entangled impurities. Meanwhile, three adjusting cylinders 9031 drive the lifting plate 9032 to rise and fall, causing the push block 9033 to slide into contact with the first guiding inclined surface 703 of the push plate 702 via the second guiding inclined surface 9034. This pushes the scraper 7 to move laterally along the movable groove 9051 of the horizontal plate 905, while simultaneously compressing or releasing the reset spring 701. This causes the scraper 7 to perform reciprocating combing motions within the brush gap, combing out impurities from different directions and positions. The toothed plate 902 below, as the brush roller rotates, deeply embeds itself into the brush gap, thoroughly scraping away the iron oxide scale embedded at the root. The scraped-off impurities fall directly to the brush. After being filtered by the filter screen 9011, the cleaning liquid is discharged through the water-permeable holes 9012 on the bottom wall of the housing 6 and the collection frame 901, achieving solid-liquid separation. Multiple sensors embedded in the toothed plate 902 detect the contact frequency between the brush and the toothed plate in real time, indirectly judging the amount of brush wear. When the sensors detect a change in the wear data of the toothed plate 902, they will promptly feed the signal back to the control system. Based on the feedback data, the control system pushes the movable plate 801 along the guide rod 802 through the feed cylinder 8, which drives the horizontal plate 905 and the entire brush cleaning assembly 9 to fine-tune the feed amount and adjust the contact position between the toothed plate 902 and the scraper plate 7 and the brush roller brush to ensure stable cleaning effect under different wear conditions.

[0052] After the brushing is completed, the adjustment unit 201 is pressed down to drive the brush roller to rise, and the transverse component drives the brush roller group 1011 back to the initial position. If the brush roller needs to be replaced, it can be quickly disassembled and assembled through the roller changing trolley 3 on one side of the frame 101 to ensure production continuity.

[0053] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the invention and are not intended to limit it. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the invention, but such modifications, substitutions, and variations are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A heavy-duty brushing device for brushing the surface of steel strip, comprising a workbench (1), a frame (101) welded to the upper surface of the workbench (1), two sets of brush roller groups (1011) symmetrically arranged in the frame (101), each set of brush roller groups (1011) including two adjustable brush rollers, a support plate (102) and a roller changing trolley (3) respectively provided on both sides of the upper surface of the workbench (1) on the frame (101), a mounting seat (103) movably provided on the support plate (102), four variable frequency motors (1032) for driving the brush rollers are installed on the mounting seat (103), and a transverse movement component for controlling the transverse movement of the brush roller group (1011) is provided below the support plate (102), characterized in that, Each frame (101) has a housing (6) on one side of each brush roller. Both ends of each housing (6) are fixed to the wall screws of the frame (101). The side of each housing (6) facing the brush roller is arc-shaped and has an opening. A brush cleaning component (9) is provided at the bottom of the opening of each housing (6). The brush cleaning component (9) is used to clean the iron oxide scale embedded between the brushes in conjunction with the rotation and lateral movement of the brush roller. Each of the housings (6) has a horizontal scraper (7) above the bristle cleaning assembly (9) in its opening, the scraper (7) being used to pre-comb the bristles; The brush cleaning assembly (9) includes a collection frame (901), the outer wall of the collection frame (901) is slidably connected to the inner wall of the housing (6), and an inclined toothed plate (902) is integrally fixed on the side of the collection frame (901) near the brush roller. The teeth of the toothed plate (902) are inserted into the brush gap of the brush roller. A filter screen (9011) is detachably installed inside the collection frame (901). Water permeable holes (9012) are opened on the bottom wall of the collection frame (901) and the housing (6). Multiple sensors are embedded in the toothed plate (902), and the multiple sensors are evenly distributed in several teeth. A top plate (9013) is fixed to the top of the collection frame (901) on the side away from the toothed plate (902). A protective shell (903) is installed on the upper surface of the top plate (9013) by screws. A horizontal plate (905) is installed on the top of the protective shell (903) near the brush roller by screws. A movable groove (9051) is opened on the side of the horizontal plate (905) near the brush roller. The scraper (7) is inserted into the movable groove (9051) and is slidably connected. A support plate (904) is fixed on the lower surface of the horizontal plate (905) on the side of the protective shell (903). Several push plates (702) are fixed on the side of the scraper (7) away from the blade edge. Several push plates (702) are inserted into the protective shell (903) through the movable groove (9051). A return spring (701) is provided between several push plates (702). The two ends of several return springs (701) are respectively connected to the scraper. The outer wall of the wire plate (7) and the groove wall of the movable groove (9051) are fixedly connected. The protective shell (903) is provided with a lifting plate (9032). The upper surface of the lifting plate (9032) is fixed with several push blocks (9033) corresponding to the push plate (702). The lower corner of the end face of several push plates (702) is set as a first guide slope (703). The top side of several push blocks (9033) is set as a second guide slope (9034). The first guide slope (703) and the second guide slope (9034) are in sliding contact. The protective shell (903) is provided with three adjusting cylinders (9031) below the lifting plate (9032). The three adjusting cylinders (9031) are fixed to the inner bottom wall of the protective shell (903) by screws. The telescopic ends of the three adjusting cylinders (9031) are fixedly connected to the lower surface of the lifting plate (9032) by screws.

2. The heavy-duty scrubbing device for scrubbing the surface of steel strips according to claim 1, characterized in that, The blade of the scraper (7) is inserted into the gap between the brushes of the brush roller, and the blade is rounded.

3. The heavy-duty scrubbing device for scrubbing the surface of steel strips according to claim 1, characterized in that, Each of the housings (6) has an arc-shaped baffle (601) above the scraper plate (7) in the opening. The outer walls of the two sides and the top of each arc-shaped baffle (601) are fixed to the inner wall of the housing (6) with screws. The bottom wall of the arc-shaped baffle (601) is in close contact with the upper surface of the horizontal plate (905) in the brush cleaning assembly (9).

4. The heavy-duty scrubbing device for scrubbing the surface of steel strips according to claim 3, characterized in that, Each of the housings (6) has a movable plate (801) located on one side of the arc-shaped baffle (601) inside the opening. The bottom end of the movable plate (801) is fixed to the upper surface of the horizontal plate (905) with screws. Three feed cylinders (8) are provided on the side of the movable plate (801) away from the arc-shaped baffle (601). The three feed cylinders (8) are all fixedly connected to the inner wall of the housing (6) with screws. The extension and retraction ends of the three feed cylinders (8) are all fixedly connected to the movable plate (801) with screws.

5. A heavy-duty scrubbing device for scrubbing the surface of steel strips according to claim 4, characterized in that, A guide rod (802) is provided between the three feed cylinders (8). Both guide rods (802) pass through the movable plate (801), and the two ends of the two guide rods (802) are fixedly connected to the outer wall of the arc baffle (601) and the inner wall of the housing (6), respectively.

6. A heavy-duty scrubbing device for scrubbing the surface of steel strips according to claim 1, characterized in that, The transverse assembly includes a geared motor (4), which is fixed to the upper surface of the support plate (102) away from the frame (101) by bolts. Linear guide rails (1021) are fixed on both sides of the upper surface of the support plate (102) by screws. The lower surface of the mounting base (103) is slidably mounted on the linear guide rails (1021) by sliders (1031). The output end of the geared motor (4) is connected to a ball screw (401) through a coupling. The ball screw (401) passes through the mounting base (103) and is threadedly connected.

7. The heavy-duty scrubbing device for scrubbing the surface of steel strips according to claim 1, characterized in that, The output ends of the four variable frequency motors (1032) are all connected to the corresponding brush roller flanges. On the walls on both sides of the frame (101), guide rail brackets (2) are fitted on the outer side of both ends of the brush rollers. Each guide rail bracket (2) is equipped with an independent pressure adjustment unit (201) to precisely adjust the position of the upper and lower brush rollers and the steel strip. Four spray pipes (5) are provided between the two brush roller groups (1011). The four spray pipes (5) are all connected to the external water supply source through conduits. The nozzles of the four spray pipes (5) face the surface of the steel strip.

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