A method of adjusting a processing thickness

Abstract

The application discloses a method for adjusting processing thickness, which comprises the following steps: dividing space, setting roller, selecting and placing strip steel, stabilizing strip steel and self-adapting adjustment. After the rack is divided into a first working space and a second working space, supporting rollers and pressing rollers are arranged in the second working space and the first working space, wherein the supporting rollers and the pressing rollers are liftable and movable, and the swing supporting rollers can swing according to the thickness of the strip steel. After the strip steel is selected and placed on the rack, the movable supporting rollers and the movable pressing rollers are driven according to the thickness of the strip steel to keep the strip steel flat and stable. The swing supporting rollers are in close contact with the strip steel after adjustment. Since the thickness of the strip steel inevitably changes, the swing supporting rollers can adapt to the thickness change of the strip steel. Therefore, the processing thickness can be adjusted according to strip steels with different thicknesses, the thickness change on the same strip steel can be self-adapted, more thickness specifications of strip steels can be adapted, the self-adapting capability is increased, the working stability is improved, and the working efficiency is further increased.

Description

Technical Field

[0001] This invention relates to the field of metal surface treatment technology, and in particular to a method for adjusting the processing thickness. Background Technology

[0002] It often takes a period of time for strip steel to go from production to actual use. During this period, due to the inherent properties of the strip steel, the surface of the strip steel may rust, affecting its actual use. Therefore, the rusted strip steel needs to be derusted before it is processed into technical products.

[0003] Rust removal of strip steel surfaces can be achieved through physical rust removal using brush rollers. However, this physical method primarily involves brushing the strip steel surface, which generates unstable forces that cause vibrations. Therefore, idler rollers and pressure rollers are needed to stabilize the strip. However, these idler rollers and pressure rollers are essentially fixed and can only accommodate a limited range of strip steel thicknesses. This necessitates the use of machines of different specifications for strip steels exceeding a certain thickness range. Therefore, a method is urgently needed that can adjust the processing thickness to accommodate a wider range of strip steel thicknesses. Summary of the Invention

[0004] To address the aforementioned technical problems, this invention provides a method for adjusting processing thickness. The steps include dividing the space, setting rollers, selecting and placing strip steel, stabilizing the strip steel, and adaptive adjustment. After dividing the frame into a first working space and a second working space, idler rollers and pressure rollers are set in the second working space and the first working space. The idler rollers include liftable movable idler rollers and movable pressure rollers, as well as swinging idler rollers that can adapt to the strip steel thickness. After selecting and placing the strip steel on the frame, the movable idler rollers and movable pressure rollers are driven according to the strip steel thickness to keep the strip steel straight and stable. The swinging idler rollers are adjusted to fit against the strip steel. Since the strip steel thickness inevitably varies, the swinging idler rollers can adapt to the thickness changes of the strip steel. This allows for adjusting the processing thickness according to strip steel of different thicknesses while also adapting to thickness variations on the same strip steel. This accommodates strip steel of more thicknesses, increases adaptability, improves working stability, and ultimately increases working efficiency.

[0005] The technical solution of this invention is implemented as follows:

[0006] A method for adjusting the processing thickness, comprising the following steps:

[0007] S1 Space Division: The frame is divided into a first working space and a second working space. The first working space is configured for the strip to be brushed on its lower surface, and the second working space is configured for the strip to be brushed on its upper surface.

[0008] S2 Setting the rollers: Arrange the movable roller and the fixed pressure roller in the first working space, and arrange the movable pressure roller and the swing roller in the second working space;

[0009] S3 Select and place strip: Select the strip, place the selected strip on the frame, and pass it from front to back through the first working space and the second working space of the frame;

[0010] S4 Stabilized Strip: Based on the selected strip thickness, control the lifting and lowering of the moving idler roller and the moving pressure roller located on the frame; in the first working space, the moving idler roller on the frame moves upward to approach the fixed pressure roller located above the strip; in the second working space, the moving pressure roller on the frame moves downward to approach the swing idler roller.

[0011] S5 Adaptive Adjustment: Adjusts the height of the oscillating roller according to the selected strip thickness and elastically adheres to the strip; during operation, the oscillating roller oscillates up and down according to the thickness of the strip it passes through.

[0012] In step S1, the first working space and the second working space are divided to process the upper and lower surfaces of the strip steel simultaneously, which increases work efficiency. In steps S4 and S5, the lifting and lowering adjustment of the moving idler roller and the moving pressure roller, the height adjustment and elastic adaptive adjustment of the swing idler roller can adjust the processing thickness according to the strip steel of different thicknesses, while also adapting to the thickness changes on the same strip steel. This allows for the adaptation of more thickness specifications of strip steel, increases the adaptive capability, thereby improving work stability and increasing work efficiency.

[0013] Preferably, in step S2, there are at least two fixed pressure rollers, one of which is located at the junction of the first and second working spaces. In step S5, the processing thickness between the fixed pressure roller and the oscillating roller is adjusted by the oscillating roller adaptively to the strip thickness. Since one of the fixed pressure rollers is located at the junction of the first and second working spaces, the roller in the second working space and the fixed pressure roller will jointly affect the processing thickness at the junction of the first and second working spaces. If the roller is also fixed, the processing thickness at that location will be greatly restricted, and the function of adjusting the processing thickness cannot be realized. Therefore, the above problem is solved by using an oscillating roller. The oscillating roller is not far from the strip when the strip is placed, and can be used as a reference for the moving roller, just like the fixed pressure roller in the first working space. Also, the cost is reduced because the oscillating roller does not require cylinder control for lifting and lowering.

[0014] Preferably, in step S2, several oscillating rollers are sequentially mounted on an oscillating seat from front to back, and the oscillating seat is rotatably mounted on the frame. The oscillation of the oscillating rollers is achieved by rotating the oscillating seat on the frame.

[0015] Preferably, an elastic adjustment element is mounted on the frame and acts on the swing seat. In step S5, the elastic adjustment element is adjusted according to the thickness of the strip to adjust the rotation angle of the swing seat, so that the swing idler roller is in contact with the strip. The processing thickness is adjusted by adjusting the height of the swing seat and the swing idler roller through the elastic adjustment element, which can accommodate strips of different thicknesses and provide elasticity to the swing seat and the swing idler roller to achieve adaptive adjustment.

[0016] Preferably, a gas spring is selected as the elastic adjustment component.

[0017] Preferably, the rotation point of the swing seat is located below the moving pressure roller, and one of the swing idlers is located below the moving pressure roller. The swing idler serves as the reference for the lifting and lowering of the moving pressure roller in the second working space. Therefore, the swing idler below the moving pressure roller should not swing too much. Thus, placing the rotation point of the swing seat below the moving pressure roller and having one of the swing idlers located there is beneficial for the moving pressure roller and the swing idler to jointly stabilize the strip.

[0018] Preferably, in step S4, the movable roller and the movable pressure roller are driven to rise and fall by cylinders.

[0019] Preferably, the thickness of the strip is selected within the range of 2-10mm. Normally, machines can only process thicknesses of 2-5mm; using this method, the processing thickness can be increased to 2-10mm, thus expanding the range of possible strip thicknesses.

[0020] The design starting point, concept, and beneficial effects of the present invention, which adopts the above technical solution, are as follows:

[0021] In step S1, dividing the workspace into a first workspace and a second workspace allows for simultaneous processing of the upper and lower surfaces of the strip, increasing work efficiency. In steps S4 and S5, the lifting and lowering adjustment of the moving idler roller and the moving pressure roller, as well as the height adjustment and elastic adaptive adjustment of the swing idler roller, enable the processing thickness to be adjusted according to different strip thicknesses, while also adapting to thickness variations on the same strip. This allows for the adaptation of strips of more thicknesses, increasing adaptability, thereby improving work stability and ultimately increasing work efficiency. Typically, the processing thickness of a machine is only 2-5mm, but using this method can increase the processing thickness to 2-10mm, resulting in a wider range of strip thicknesses that can be processed.

[0022] Since one of the fixed pressure rollers is located at the junction of the first and second working spaces, the idler roller in the second working space and the fixed pressure roller will jointly affect the processing thickness at the junction of the first and second working spaces. If the idler roller is also fixed, the processing thickness at that point will be greatly restricted, and the function of adjusting the processing thickness cannot be realized. Therefore, the above problem is solved by using a swing idler roller. The swing idler roller is not far from the strip when the strip is placed, and can be used as a reference for the moving roller, just like the fixed pressure roller in the first working space. Also, the swing idler roller reduces costs because it does not require cylinder control for lifting and lowering. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the brush unit in an embodiment of the present invention. Figure 1 ;

[0024] Figure 2 This is a three-dimensional structural diagram of the arrangement of the first, second, and third columns in an embodiment of the present invention;

[0025] Figure 3 This is a three-dimensional structural diagram of the brush unit in an embodiment of the present invention. Figure 2 ;

[0026] Figure 4 This is a three-dimensional structural diagram of the brush unit in an embodiment of the present invention. Figure 3 ;

[0027] Figure 5 This is a three-dimensional structural diagram of the swing seat mounted on the frame in an embodiment of the present invention;

[0028] Figure 6 This is a cross-sectional view of the brush unit in an embodiment of the present invention;

[0029] Figure 7 This is a three-dimensional structural diagram of the swing seat in an embodiment of the present invention. Figure 1 ;

[0030] Figure 8 This is a three-dimensional structural diagram of the swing seat in an embodiment of the present invention. Figure 2 ;

[0031] Figure 9 This is a side view of the swing seat in an embodiment of the present invention;

[0032] Figure 10 This is a front view of the swing seat in an embodiment of the present invention;

[0033] Figure 11 This is a side view of the brush unit in an embodiment of the present invention;

[0034] Figure 12 This is a front view of the brush unit in an embodiment of the present invention;

[0035] Figure 13 This is a three-dimensional structural diagram of the production line in an embodiment of the present invention;

[0036] Figure 14 This is a front view of the production line in an embodiment of the present invention;

[0037] Figure 15 This is a flowchart of the method in an embodiment of the present invention.

[0038] The reference numerals in the attached drawings are as follows: 100 brush unit; 200 strip steel; 1 frame; 1a first working space; 1b second working space; 2 lower brush roller; 3 upper brush roller; 4 lifting mechanism; 41 lifting drive motor; 42 lifting guide rod; 5 first column; 6 second column; 7 third column; 8 top seat; 9 transverse movement mechanism; 91 slide rail; 92 moving seat; 93 transverse movement drive motor; 10 brush roller seat; 11 extension column; 12 swing idler roller; 13 moving idler roller; 14 moving pressure roller. Fixed pressure roller 15; First fixed pressure roller 15a; Second fixed pressure roller 15b; First upper crossbeam 16; First lower crossbeam 17; Second upper crossbeam 18; Second lower crossbeam 19; Lifting seat 20; Guide column 21; Cylinder 22; Pressure roller seat 23; Third upper crossbeam 24; Third lower crossbeam 25; Support seat 26; Swing seat 27; Shaft seat 28; Rotating shaft 29; Gas spring 30; Limit seat 31; Limit rod 32; Limit plate 33; Base 34; Drainage channel 35. Implementation

[0039] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0040] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the scope of protection of the invention is not limited to the specific embodiments disclosed below.

[0041] In the description of this invention, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0042] The specific embodiments of the present invention are as follows:

[0043] like Figure 2 , 6 As shown in Figure 15, the present invention provides a method for adjusting the processing thickness, the steps of which are as follows:

[0044] S1 Space Division: The frame 1 is divided into a first working space 1a and a second working space 1b. The first working space 1a is configured for the strip steel 200 to perform lower surface grinding, and the second working space 1b is configured for the strip steel 200 to perform upper surface grinding.

[0045] S2 Setting the rollers: Arrange the movable roller 13 and the fixed pressure roller 15 in the first working space 1a, and arrange the movable pressure roller 14 and the swing roller 12 in the second working space 1b.

[0046] S3 Select and place strip steel: Select strip steel 200, place the selected strip steel 200 on the frame 1, and pass from front to back through the first working space 1a and the second working space 1b of the frame 1;

[0047] S4 Stabilizing Strip Steel: Based on the thickness of the selected strip steel 200, control the lifting and lowering of the movable roller 13 and movable pressure roller 14 located on the frame 1; in the first working space 1a, the movable roller 13 on the frame 1 moves upward to approach the fixed pressure roller 15 located above the strip steel 200; in the second working space 1b, the movable pressure roller 14 on the frame 1 moves downward to approach the swing roller 12.

[0048] S5 Adaptive Adjustment: Adjust the height of the swing roller 12 according to the thickness of the selected strip 200, and elastically abut against the strip 200; during operation, the swing roller 12 swings up and down according to the thickness of the strip 200 it passes through.

[0049] In step S1, dividing the first working space 1a and the second working space 1b allows for simultaneous processing of the upper and lower surfaces of the strip 200, increasing work efficiency. In steps S4 and S5, the lifting and lowering adjustment of the moving roller 13 and the moving pressure roller 14, as well as the height adjustment and elastic adaptive adjustment of the swing roller 12, enable the processing thickness to be adjusted according to different thicknesses of the strip 200, while also adapting to thickness variations on the same strip 200. This allows for adaptation to more thickness specifications of strip 200, increasing adaptability, thereby improving work stability and increasing work efficiency. Typically, the processing thickness of a machine is only 2-5mm, but using this method, the processing thickness can be increased to 2-10mm, resulting in a wider range of processed strip 200 thicknesses.

[0050] This method is applied to a brush unit 100, such as Figure 2 , 6As shown, the brushing unit 100 includes a frame 1, a first roller group, and a second roller group. The frame 1 serves as the main support of the structure, and a strip 200 is threaded through the frame 1 from front to back. The first roller group and the second roller group are mounted on the frame 1 and are configured together to keep the strip 200 in a straight state. The frame 1 includes a first working space 1a and a second working space 1b. The first working space 1a is configured to house a lower brush roller 2 for its operation, and the second working space 1b is configured to house an upper brush roller 3 for its operation. The first roller group and the second roller group are arranged on the frame 1 in a front-to-back direction, with the first roller group located in the first working space 1a and the second roller group located in the second working space 1b. The first roller group includes several fixed pressure rollers 15 and at least two movable support rollers 13. The fixed pressure rollers 15 are configured to press down on the strip 200 in the first working space 1a. The movable roller 13 is configured to be close to the strip 200 in the first working space 1a to support it or away from it for installation. The fixed pressure roller 15 is relatively fixed to the frame 1 and is symmetrically distributed along the vertical center line of the first working space 1a. The movable roller 13 is selectively movable relative to the frame 1. The second roller group includes a movable pressure roller 14 and several swing rollers 12. The movable pressure roller 14 is configured to be close to or away from the strip 200 in the second working space 1b for installation. The swing rollers 12 are configured to support the strip 200 in the second working space 1b. The movable pressure roller 14 is selectively movable relative to the frame 1. The fixed pressure roller 15 and the movable pressure roller 14 are located above the strip 200, and the movable roller 13 and the swing rollers 12 are located below the strip 200.

[0051] A first roller group is arranged for the lower brush roller 2 in the first working space 1a, and a second roller group is arranged for the upper brush roller 3 in the second working space 1b. The lower surface of the strip 200 is brushed by the lower brush roller 2 in the first working space 1a, and the upper surface of the strip 200 is brushed by the upper brush roller 3 in the second working space 1b. Therefore, some of the strip 200 in the first working space 1a and some of the strip 200 in the second working space 1b are in different working states. Several fixed pressure rollers 15 and two movable support rollers 13 in the first roller group keep some of the strip 200 in the first working space 1a flat. The movable pressure roller 14 and several oscillating support rollers 12 in the second roller group keep some of the strip 200 in the second working workpiece flat. This is to adapt to the complex situation of having both upper brush roller 3 and lower brush roller 2 at the same time, to keep the strip 200 flat as a whole, and to make the work more stable.

[0052] The fixed pressure roller 15 includes two first fixed pressure rollers 15a and two second fixed pressure rollers 15b. The two first fixed pressure rollers 15a are located in the middle of the first working space 1a and are symmetrical along the vertical centerline of the first working space 1a. The two second fixed pressure rollers 15b are located in front of and behind the two first fixed pressure rollers 15a, respectively. Two movable support rollers 13 are arranged corresponding to the two second fixed pressure rollers 15b. The arrangement of the fixed pressure rollers 15 and the movable support rollers 13 is to keep the strip 200 in the second working space 1b pressed down and supported at each point, so that it remains flat. The movable pressure roller 14 is located at the rear of the frame 1, and the swing roller 12 is arranged from front to back in the second working space 1b. Above the strip 200, the second fixed pressure roller 15b, two first fixed pressure rollers 15a, the second fixed pressure roller 15b and the movable pressure roller 14 are arranged from front to back in sequence. Below the strip 200, the two movable rollers 13 and the three swing rollers 12 are arranged from front to back in sequence. The first working space 1a and the second working space 1b are adjacent to each other, and the second fixed pressure roller 15b, located behind the first fixed pressure roller 15a, is located at the junction of the first working space 1a and the second working space 1b.

[0053] like Figure 1 , 3 As shown in Figure 6, this mechanism is applied in a brush unit 100, specifically, the brush unit 100 includes:

[0054] The frame 1 is configured as the main support for the brush unit 100; the frame 1 includes a first working space 1a and a second working space 1b arranged adjacent to each other.

[0055] The lower brush roller 2 is set at the first working space 1a of the frame 1. The lower brush roller 2 is configured to be located below the strip 200 and to brush the lower surface of the strip 200.

[0056] The upper brush roller 3 is set at the second working space 1b of the frame 1. The upper brush roller 3 is configured to be located above the strip 200 and to brush the upper surface of the strip 200. The lower brush roller 2 and the upper brush roller 3 are integrated together on the frame 1.

[0057] The lower brush roller 2 and the upper brush roller 3 are both connected to a lifting mechanism 4. The lifting mechanism 4 is set on the frame 1 and configured to drive the lower brush roller 2 or the upper brush roller 3 to move up and down.

[0058] The idler roller assembly is set on the frame 1 and located below the strip 200. The idler roller assembly is configured to support the strip 200 upwards.

[0059] The pressure roller assembly is mounted on the frame 1 and located above the strip 200. The pressure roller assembly is configured to press downwards onto the strip 200.

[0060] The strip steel 200 passes through the frame 1 from front to back and passes through the first working space 1a and the second working space 1b in sequence. The lower brush roller 2, the upper brush roller 3, the support roller group and the pressure roller group keep the strip steel 200 at a horizontal plane, and the lower brush roller 2 and the upper brush roller 3 respectively brush the lower surface and the upper surface of the strip steel 200.

[0061] The upper brush roller 3 and the lower brush roller 2 are integrated into one unit. The upper brush roller 3 and the lower brush roller 2 simultaneously brush the upper and lower surfaces of the strip steel 200. The simultaneous brushing of the two surfaces of the strip steel 200 by the upper brush roller 3 and the lower brush roller 2 counteracts the force, making the strip steel 200 more stable during operation, the brush rollers clean more thoroughly, and the efficiency is higher. At the same time, it can also reduce vibration and noise. The lifting mechanism 4 provides lifting capability for the upper brush roller 3 and the lower brush roller 2, so that the upper brush roller 3 and the lower brush roller 2 can make just contact with the surface of the strip steel 200 without excessive contact affecting the working stability, and can adapt to strip steel 200 of different thicknesses. The idler roller group and the pressure roller group can further maintain the straightness of the strip steel 200, making the operation more stable.

[0062] like Figure 1-5 As shown, the frame 1 is a frame structure. The frame 1 includes a first column 5, a second column 6, and a third column 7, which are arranged sequentially from front to back. Each column has two members, one on the left and one on the right. The first working space 1a is located between the first column 5 and the second column 6, and the second working space 1b is located between the second column 6 and the third column 7. The top of the first column 5 and the second column 6 are provided with a top seat 8, and the top of the second column 6 and the third column 7 are also provided with a top seat 8. The top seat 8 is a hollow rectangular frame structure. Both top seats 8 are provided with a transverse movement mechanism 9. The transverse movement mechanism 9 includes a slide rail 91 and a moving seat 92. The slide rail 91 is arranged on the front and rear sides of the hollow part of the top seat 8. The moving seat 92 is slidably mounted on the slide rail 91 and is driven by a transverse movement drive motor 93 to move the moving seat 92 in the left and right direction on the slide rail 91. The transverse movement drive motor 93 is mounted on the top seat 8 and is located next to the moving seat 92.

[0063] Both movable seats 92 are equipped with the lifting mechanism 4. The lifting mechanism 4 includes a lifting drive motor 41 and lifting guide rods 42. There are four lifting guide rods 42, all of which are inserted into the movable seats 92 and pass through the hollow of the top seat 8 to reach the first working space 1a or the second working space 1b. The lifting drive motor 41 is mounted on the movable seats 92 and drives the lifting guide rods 42 to rise and fall. The lower end of the lifting guide rod 42 is connected to a brush roller seat 10. The upper brush roller 3 and the lower brush roller 2 are respectively installed on the two brush roller seats 10. Under the action of the lifting mechanism 4, the upper brush roller 3 and the lower brush roller 2 can be at different heights, that is, the upper brush roller 3 can be above the strip 200 and the lower brush roller 2 can be below the strip 200. The transverse mechanism 9 can drive the lifting mechanism 4, the brush roller seat 10, and the upper brush roller 3 and the lower brush roller 2 to move in the left and right direction. The purpose of doing this is because the length of the upper brush roller 3 and the lower brush roller 2 is generally greater than the width of the strip 200. The ends of the brush rollers exceed the strip 200 and cannot work. Moving the brush rollers left and right can make the brush rollers wear evenly and avoid waste.

[0064] The lengths of the columns are different to accommodate the different heights of the upper brush roller 3 and the lower brush roller 2. Specifically, the first column 5 and the second column 6 are of equal length, and the third column 7 is longer than the second column 6. That is, the third column 7 is longer than the second column 6, and its height is also higher than the first column 5 and the second column 6. In order to keep the top seat 8 on the second column 6 and the third column 7 horizontal, an extension column 11 is also provided on the second column 6. Ultimately, the space above the strip 200 in the second working space 1b is larger, which is conducive to the lifting and lowering of the upper brush roller 3.

[0065] like Figure 6 , 11As shown in Figure 12, the idler roller group includes an oscillating idler roller 12 and a movable idler roller 13, and the pressure roller group also includes a movable pressure roller 14 and a fixed pressure roller 15. The movable idler roller 13 and the fixed pressure roller 15 are located in the first working space 1a and cooperate with the lower brush roller 2 to maintain the straightness and stability of the strip 200. The oscillating idler roller 12 and the movable pressure roller 14 are located in the second working space 1b and cooperate with the upper brush roller 3 to maintain the straightness and stability of the strip 200. The fixed pressure rollers 15 are all fixed on the frame 1, and the movable idler rollers 13 are all movably mounted on the frame 1. Specifically, a first upper crossbeam 16 and a first lower crossbeam 17 are provided between the two first columns 5. A second upper crossbeam 18 and a second lower crossbeam 19 are provided between the second columns 6. There are two swing rollers 12, which are respectively set on the first lower crossbeam 17 and the second lower crossbeam 19. A lifting seat 20 is provided between the swing roller 12 and the first lower crossbeam 17 or the second lower crossbeam 19. Two guide columns 21 are provided below the lifting seat 20. The guide columns 21 are inserted on the first lower crossbeam 17 and the second lower crossbeam 19. A cylinder 22 is provided on the first upper crossbeam 16 and the second upper crossbeam 18. The cylinder 22 is connected downward to the lifting seat 20 and drives the lifting seat 20 and the moving roller 13 on the lifting seat 20 to rise and fall.

[0066] The first upper crossbeam 16 and the second upper crossbeam 18 are also provided with pressure roller seats 23. The two pressure roller seats 23 are arranged opposite each other and extend into the first working space 1a. There are four fixed pressure rollers 15, which are respectively arranged on the first upper crossbeam 16, the second upper crossbeam 18 and the two pressure roller seats 23. The lower brush roller 2 is located directly below the fixed pressure rollers 15 on the two pressure roller seats 23, and the axis of the lower brush roller 2 is located at the center line of the two fixed pressure rollers 15. That is, the two pressure rollers on the pressure roller seats 23 and the lower brush roller 2 can pass through each other. To maintain the straightness and stability of the strip 200 at this position, the lower brush roller 2 acts as a support roller while working. The fixed pressure roller 15 on the first upper crossbeam 16 and the movable support roller 13 on the first lower crossbeam 17 can maintain the straightness and stability of the strip 200 located at the first column 5. Similarly, the fixed pressure roller 15 on the second upper crossbeam 18 and the movable support roller 13 on the second lower crossbeam 19 can maintain the straightness and stability of the strip 200 located at the second column 6.

[0067] A third upper crossbeam 24 and a third lower crossbeam 25 are provided between the two third columns 7. The movable pressure roller 14 is located below the third upper crossbeam 24. Another lifting seat 20 is provided between the third upper crossbeam 24 and the movable pressure roller 14. Another cylinder 22 is also provided on the third upper crossbeam 24. The cylinder 22 is connected to the lifting seat 20 and drives the lifting table and the movable pressure roller 14 to rise and fall.

[0068] like Figure 5-10As shown, a support seat 26 is provided on the second lower crossbeam 19 of the second column 6, and the support seat 26 is positioned facing the third lower crossbeam 25. A swing seat 27 is provided on the third lower crossbeam 25 and the support seat 26, and the swing seat 27 spans across the third lower crossbeam 25 and the support seat 26. The swing roller 12 is disposed on the swing seat 27. Specifically, two bearing seats 28 are provided on the third lower crossbeam 25 at left and right intervals, and a rotating shaft 29 arranged in the left and right direction is provided between the bearing seats 28. The rotating shaft 29 passes through the swing seat 27 and enables the swing seat 27 to rotate relative to the third lower crossbeam 25. There are two support seats 26, which are arranged on the second lower crossbeam 19 at left and right intervals. A rotatable support seat 26 is provided on the support seat 26. The gas spring 30 pushes the oscillating roller 12 toward the strip 200. The gas spring 30 can control the oscillating seat 27 to rotate around the rotating shaft 29, and the oscillating roller 12 on the oscillating seat 27 moves accordingly to adapt to the thickness of the strip 200. The gas spring 30 is elastic and can automatically adapt to the thickness of the strip 200. Since the fixed pressure roller 15 in front of the oscillating roller 12 is fixed, if the oscillating roller 12 is also fixed, the thickness range of the strip 200 that the brush unit 100 can adapt to will be greatly reduced. However, after the oscillating roller 12 increases its oscillation, it can adapt to the thickness variation on the same strip 200 and can also adapt to a larger thickness range of strip 200 by adjusting the length of the gas spring 30.

[0069] A limiting assembly is also provided between the two support groups. The limiting assembly includes a limiting seat 31 and a limiting rod 32. The limiting seat 31 is fixedly installed on the second lower crossbeam 19 and faces the third lower crossbeam 25. The limiting rod 32 is vertically installed on the limiting seat 31. A limiting plate 33 is correspondingly provided on the swing seat 27. The limiting plate 33 faces the limiting rod 32. The height distance between the limiting plate 33 and the limiting rod 32 is a variable range of the thickness of the strip 200, that is, it is suitable for the thickness range of the same strip 200. The limiting rod 32 is adjustablely set on the limiting seat 31 by a thread, so that the distance between the limiting plate 33 and the limiting rod 32 can be adjusted.

[0070] like Figure 13 , 14 As shown, a base 34 is also provided below the frame 1, and a drainage channel 35 is provided on the base 34. The drainage channel 35 is located below the frame 1 and is recessed downward on the surface of the base 34. The size of the drainage channel 35 is configured to allow workers to enter. Multiple brushing units 100 are arranged sequentially from front to back to form a production line, and the drainage channels 35 of the multiple brushing units 100 are connected. When the production line is working, that is, when brushing the surface of the strip steel 200, water spraying is required to cool it down and flush the brushed oxide layer into the drainage channel 35. Even if the oxide layer remains in the drainage channel 35, workers can still clean it easily and quickly.

Claims

1. A method of adjusting a processing thickness, characterized by, The steps are: S1: dividing the space: divide the rack into a first working space and a second working space, the first working space is configured for the strip to be brushed on the lower surface in the first working space, and the second working space is configured for the strip to be brushed on the upper surface in the second working space; S2: setting the roller: arranging the movable carrier roller and the fixed pressure roller in the first working space, and arranging the movable pressure roller and the swing carrier roller in the second working space; S3: selecting and placing the strip: selecting the strip, setting the selected strip on the rack, and passing through the first working space and the second working space of the rack from front to back; S4: stabilizing the strip: according to the thickness of the selected strip, controlling the lifting of the movable carrier roller and the movable pressure roller on the rack; in the first working space, the movable carrier roller on the rack moves upward to approach the fixed pressure roller above the strip; in the second working space, the movable pressure roller on the rack moves downward to approach the swing carrier roller; S5: self-adaptive adjustment: according to the thickness of the selected strip, adjusting the height of the swing carrier roller and elastically abutting on the strip; during work, the swing carrier roller swings up and down according to the thickness of the passing strip; In step S2, there are at least two fixed pressure rollers, one of which is located at the junction of the first working space and the second working space; in step S5, the processing thickness between the fixed pressure roller and the swing carrier roller is adjusted by the swing carrier roller according to the thickness of the strip; In step S2, a plurality of swing carrier rollers are installed on a swing seat from front to back, and the swing seat is rotationally arranged on the rack; an elastic adjusting member is arranged on the rack and acts on the swing seat; in step S5, the elastic adjusting member is adjusted according to the thickness of the strip to adjust the rotation angle of the swing seat, so that the swing carrier roller abuts on the strip; The rotation point of the swing seat is located below the movable pressure roller, and one of the swing carrier rollers is located below the movable pressure roller.

2. The method of claim 1, wherein: The gas spring is selected as the elastic adjusting member.

3. The method of claim 1, wherein: In step S4, the movable carrier roller and the movable pressure roller are respectively driven to lift by the air cylinder.

4. The method of claim 1, wherein: The thickness of the strip is selected in the range of 2-10mm.

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