Surface cleaning device for strip-shaped object

Abstract

The utility model discloses a surface cleaning device for a strip-shaped object. The surface cleaning device comprises a rack, a first cleaning roller rotationally connected to the rack, a mounting plate, a second cleaning roller rotationally connected to the mounting plate, a tensioning mechanism mounted on the mounting plate, a lifting mechanism for driving the mounting plate to ascend and descend, and a sensing module mounted on the lifting mechanism. The lifting mechanism automatically adjusts the position of the second cleaning roller according to the detection result of the sensing module, can adapt to dust distribution on the surface of the metal filter bag and the deformation condition of the filter bag, ensures that the cleaning rollers make full contact with the metal filter bag, and achieves comprehensive and effective cleaning of the metal filter bag; different positions of the surface of the metal filter bag are in full contact with the cleaning roller, cleaning dead angles are avoided, and the cleaning effect is further improved.

Description

Technical Field

[0001] The present application relates to the technical field of metal filter bag cleaning, and in particular to a surface cleaning device for strip-shaped objects. Background Art

[0002] As the core equipment for converting biomass energy into thermal energy, biomass boilers have been widely used in many fields, including industrial production and civilian use. However, the flue gas generated by biomass combustion contains a large amount of extremely sticky dust, which easily adheres to and forms a crust on the surface of the metal filter bag. This greatly hinders the normal filtering function of the metal filter bag, significantly reducing the filtration efficiency and increasing the operating resistance of the equipment, ultimately negatively affecting the overall performance and service life of the biomass boiler. This requires the metal filter bags to be removed from the dust collector after the boiler is shut down and then manually brushed and cleaned. Each bag filter contains a large number of filter bags, which may be hundreds or even thousands, making the manual brushing and cleaning work very labor-intensive. Utility Model Content

[0003] The purpose of this application is to provide a surface cleaning device for strip-shaped objects in order to achieve automatic cleaning of metal filter bags.

[0004] The surface cleaning device of a metal filter bag provided in the present application adopts the following technical solution: it includes a frame, a first cleaning roller, a second cleaning roller, and a transport mechanism, wherein the first cleaning roller, the second cleaning roller, and the transport mechanism are directly or indirectly installed on the frame, wherein the first cleaning roller and the second cleaning roller can rotate relative to the frame, the installation heights of the first cleaning roller and the second cleaning roller are different, and the interval between the first cleaning roller and the second cleaning roller constitutes a cleaning space. During the cleaning process, the transport mechanism transports the strip-shaped objects to the cleaning space and makes the strip-shaped objects move back and forth in the cleaning space, and the frame is also provided with a power component for driving the first cleaning roller and the second cleaning roller to rotate.

[0005] By adopting the above technical solution, the frame serves as the supporting structure of the entire device, providing a basis for the installation and operation of other components. The transport mechanism transports the metal filter bag between the first cleaning roller and the second cleaning roller. The first cleaning roller and the second cleaning roller will apply clamping force to the metal filter bag, so that the first cleaning roller and the second cleaning roller can better remove the plate dust on the metal filter bag. On the one hand, the transport mechanism allows the metal filter bag to pass through the cleaning space during the cleaning process to achieve comprehensive cleaning. On the other hand, the metal filter bag is moved back and forth in the cleaning space during the cleaning process to increase the cleaning efficiency.

[0006] Optionally, the number of the first cleaning rollers is a, the number of the second cleaning rollers is b, the sum of a and b is greater than or equal to 3, wherein a and b are both greater than 0, and the first cleaning rollers and the second cleaning rollers are alternately staggered.

[0007] By adopting the above technical solution, during the cleaning process, the first cleaning roller and the second cleaning roller can clamp the metal filter bag more tightly to prevent it from deflecting during the cleaning process.

[0008] Optionally, it also includes a lifting mechanism arranged on the frame, the lifting mechanism includes a mounting plate, a lifting assembly, and a sensing module, the second cleaning roller is installed on the mounting plate, the lifting assembly drives the mounting plate to move up and down, the sensing module detects the pressing force between the second cleaning roller and the strip object, and controls the height of the second cleaning roller through the lifting assembly according to the measured pressing force.

[0009] By adopting the above technical solution, the lifting mechanism adjusts the distance between the first cleaning roller and the second cleaning roller to adapt to the cleaning of metal filter bags of different sizes. On the other hand, due to the different thickness of the metal filter bags, the cleaning effect on the thinner parts is not good during the cleaning process. The lifting mechanism ensures that the second cleaning roller is always pressed against the metal filter bag, thereby enhancing the cleaning effect.

[0010] Optionally, the lifting assembly includes several first rods and a linkage assembly that drives the first rods to rotate. The mounting plate is fixed to the first rods. Several threaded holes are provided on the top surface of the frame. The bottom ends of the first rods are threadedly connected to the threaded holes. The linkage assembly simultaneously drives the first rods to rotate.

[0011] By adopting the above technical solution, the lifting component can automatically adjust the position of the second cleaning roller according to the detection results of the sensing module to adapt to the dust distribution on the surface of the metal filter bag and the deformation of the filter bag, thereby achieving comprehensive and effective cleaning of the metal filter bag; when the linkage component is started, it drives all the first rods to rotate at the same time. Since the bottom end of the first rod is threadedly connected to the threaded hole on the top surface of the frame, the rotation of the first rod will cause it to move up and down in the threaded hole. The mounting plate is mounted on the first rod, and as the first rod moves up and down, the mounting plate will also rise or fall accordingly. In this way, the height of the second cleaning roller connected to the mounting plate can be adjusted.

[0012] Optionally, the linkage assembly includes a housing rotatably connected to the end of the first rod, and a first motor disposed on the housing, and the first motor drives all the first rods to rotate through a gear assembly.

[0013] With this technical solution, when the first motor starts, power is transmitted to the gear assembly. The meshing of gears of varying sizes reduces the rotational speed and increases the torque. This reduced power is then transferred from the output end to the first rod, driving its rotation. Because the first rod is threadedly connected to a threaded hole in the top surface of the frame, its rotation causes it to move up and down within the hole, thereby adjusting the height of the mounting plate and the second cleaning roller.

[0014] Optionally, the sensing module includes a clamping block slidably connected to the first rod, the clamping block is arranged under the mounting plate, a pressure sensor is provided between the clamping block and the mounting plate, the first rod sleeve is provided with a second spring, one end of the second spring abuts the top of the frame, and the other end abuts the mounting plate, and the second spring forces the clamping block to press against the mounting plate.

[0015] By adopting this technical solution, during operation of the cleaning device, when the first and second cleaning rollers clamp the metal filter bag, the metal filter bag generates a certain reaction force on the cleaning rollers. This reaction force is transmitted to the second spring through the cleaning rollers and the mounting plate. Under pressure, the second spring compresses and deforms, forcing the abutment block toward the mounting plate. A pressure sensor between the abutment block and the mounting plate detects the pressure between them in real time. This pressure value reflects the degree of compression between the first cleaning roller and the metal filter bag.

[0016] Optionally, the frame is fixedly connected to an ash hopper, which is arranged below the first cleaning roller and the second cleaning roller, and a collection box is provided at the outlet end of the lower end of the ash hopper.

[0017] By adopting this technical solution, as the first and second cleaning rollers clean the metal filter bags, dust and impurities removed from the surface of the metal filter bags fall under the action of gravity. Because the ash hopper is located below the cleaning rollers, this dust and impurities fall into the ash hopper. The ash hopper collects dust, preventing it from flying around during the cleaning process and maintaining a clean working environment. Dust and impurities in the ash hopper gradually accumulate and fall through the lower outlet into a collection box. The collection box can be cleaned regularly, and the collected dust and impurities can be centrally processed or recycled.

[0018] Optionally, the transport mechanism includes support rollers and transport rollers rotatably connected to the frame, a second motor driving the transport rollers to rotate, a bracket fixedly connected to the frame, an ultrasonic receiver fixedly connected to the bracket, and an ultrasonic generator fixedly connected to the frame. The ultrasonic generator emits an ultrasonic signal, and the ultrasonic receiver receives the reflected signal. The area between the two constitutes a detection area, and the strip-shaped object passes through the detection area under the action of the transport rollers.

[0019] By adopting the above technical solution, the second motor is activated to drive the transport rollers. The metal filter bag is placed on the support rollers and transport rollers. As the transport rollers rotate, the metal filter bag moves forward and is transported between the first and second cleaning rollers. During the plate dust cleaning process, the transport mechanism drives the metal filter bag in reciprocating motion. This ensures that different locations on the metal filter bag surface are in full contact with the cleaning rollers, improving the cleaning effect. The ultrasonic generator emits ultrasonic waves, which pass through the metal filter bag and are received by the ultrasonic receiver. The propagation characteristics of the ultrasonic waves in the metal filter bag, such as propagation time and attenuation, can be monitored to determine the cleanliness level of the metal filter bag. When the required cleanliness level is achieved, the cleaning process is stopped and the metal filter bag is transported for further processing.

[0020] Optionally, the power assembly includes a third motor arranged on the frame, the third motor is connected to the first cleaning roller via a belt drive / chain drive, the first cleaning roller is connected to the second cleaning roller via a belt drive / chain drive, and the lifting mechanism also includes a tensioning mechanism. When the height of the second cleaning roller changes, the tensioning mechanism adjusts the tension of the conveyor belt / chain between the first cleaning roller and the second cleaning roller.

[0021] By adopting the above technical solution, when the third motor is started, its output shaft rotates, driving the pulley on the output shaft to rotate. The power is transmitted to the pulley on the first cleaning roller through the action of the transmission belt / chain, and the power is transmitted to the second cleaning roller through the belt drive.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. The lifting mechanism automatically adjusts the position of the second cleaning roller according to the detection results of the sensing module, which can adapt to the dust distribution on the surface of the metal filter bag and the deformation of the filter bag, ensuring that the cleaning roller is in full contact with the metal filter bag, and achieving comprehensive and effective cleaning of the metal filter bag. The transport mechanism drives the metal filter bag to reciprocate, so that different positions on the surface of the metal filter bag are in full contact with the cleaning roller, avoiding cleaning dead corners and further improving the cleaning effect;

[0024] 2. The sensing module detects the degree of compression between the first cleaning roller and the metal filter bag in real time, providing accurate feedback information for the automatic adjustment of the lifting mechanism, ensuring that the pressure between the cleaning roller and the metal filter bag is always within the appropriate range, improving the stability of the cleaning effect. The tensioning mechanism automatically adjusts the belt length when the second cleaning roller moves, ensuring that the belt maintains an appropriate degree of tension between the first cleaning roller and the second cleaning roller, ensuring the stability and reliability of the belt drive, and extending the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the overall structure of Example 1 of the present application;

[0026] Figure 2 This is a schematic diagram of the structure of the transport mechanism in Example 1 of the present application;

[0027] Figure 3 This application Figure 1 Front view of

[0028] Figure 4 1 is a schematic structural diagram of the lifting mechanism of Example 1 of the present application;

[0029] Figure 5 This application Figure 4 Sectional view of AA in the middle;

[0030] Figure 6 It is a structural schematic diagram of the tensioning mechanism in Example 2 of the present application.

[0031] Explanation of the accompanying drawings: 1. Frame; 11. Threaded hole; 2. First cleaning roller; 3. Second cleaning roller; 4. Lifting mechanism; 41. Sensing module; 411. First limiting ring; 412. Second limiting ring; 413. Second spring; 414. Pressing block; 415. Through hole; 416. Pressure sensor; 42. Tensioning mechanism; 421. Optical rod; 422. Support seat; 423. First spring; 43. Linkage assembly; 431. Reducer housing; 432. First motor; 433. Gear assembly; 44. Mounting plate; 45. First rod; 46. Lifting assembly; 5. Transport mechanism; 51. Second motor; 52. Transport roller; 53. Support roller; 54. Bracket; 55. Ultrasonic generator; 56. Ultrasonic receiver; 6. Ash hopper; 7. Collection box; 8. Power assembly; 81. Third motor; 9. Cleaning space. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1 -Attached Figure 6 This application is described in further detail.

[0033] The embodiment of the present application discloses a surface cleaning device for a strip-shaped object.

[0034] Example 1, reference Figure 1, a surface cleaning device for strip objects, including a frame 1, a first cleaning roller 2 rotatably connected to the frame 1, a mounting plate 44, a second cleaning roller 3 rotatably connected to the mounting plate 44, and a transport mechanism 5 for transporting metal filter bags. In Example 1, the number of first cleaning rollers 2 is 2 and the number of second cleaning rollers 3 is 1. The frame 1 is provided with four first rods 45, the first rod 45 is provided with two through holes 415, and the two through holes 415 are respectively installed with a first limiting ring 411 and a second limiting ring 412 through bolt threads. The mounting plate 44 is sleeved on the first rod 45 and arranged between the first limiting ring 411 and the second limiting ring 412. The two first cleaning rollers 2 are installed on the frame 1, and the second cleaning roller 3 is located between the two first cleaning rollers 1. The transport mechanism 5 The mechanism 5 transports the metal filter bag between the first cleaning roller 2 and the second cleaning roller 3, so that the first cleaning roller 2 and the second cleaning roller 3 clean the two sides of the metal filter bag respectively; the frame 1 is also provided with a third motor 81, and the third motor 81 drives the first cleaning roller 2 to rotate through a belt transmission, and the first cleaning roller 2 and the second cleaning roller 3 transmit power through the belt transmission, so that the first cleaning roller 2 and the second cleaning roller 3 rotate to clean the surface of the metal filter bag. The first cleaning roller 2 and the second cleaning roller 3 in Example 1 take the copper wire fixed on the surface of the drum as an example, and a large number of protrusions or hard brushes can be fixed on the surface of the drum. The drum is provided with a circumferential closed-loop recess, and the recess has a better positioning effect when cleaning the metal filter bag and increases the area of ​​the cleaned metal filter bag.

[0035] refer to Figure 2 The transport mechanism 5 includes a support roller 53 and a transport roller 52 rotatably connected to the frame 1, and a second motor 51 that drives the transport roller 52. Driven by the second motor 51, the transport roller 52 rotates at a steady speed, providing power for the movement of the metal filter bag. The support roller 53 serves as an auxiliary support during transportation, preventing the metal filter bag from deforming or shifting under the action of gravity, ensuring that the metal filter bag can accurately enter between the first cleaning roller 2 and the second cleaning roller 3 for cleaning. A bracket 54 is fixedly connected to the frame 1, an ultrasonic receiver 56 is fixedly connected to the bracket 54, and an ultrasonic generator 55 is fixedly connected to the frame 1. The ultrasonic generator 55 and ultrasonic receiver 56 are arranged on both sides of the metal filter bag. The support roller 53 is arranged between the transport roller 52 and the lifting mechanism 4. The bracket 54 is firmly fixed to the frame 1, providing a stable installation position for the ultrasonic receiver 56.

[0036] The ultrasonic receiver 56 can accurately receive the ultrasonic signal emitted by the ultrasonic generator 55. The ultrasonic generator 55 is fixedly connected to the frame 1 and is arranged on both sides of the metal filter bag opposite the ultrasonic receiver 56, ensuring that the ultrasonic waves can smoothly pass through the metal filter bag. During the cleaning process, as the metal filter bag moves under the action of the transport roller 52 and the support roller 53, the ultrasonic generator 55 continuously emits ultrasonic waves. These ultrasonic waves pass through the metal filter bag and are received by the ultrasonic receiver 56. By analyzing the propagation characteristics of the ultrasonic waves in the metal filter bag, such as the propagation time and attenuation degree, the plate dust thickness of the metal filter bag can be determined in real time. When the cleaning level meets the requirements, the transport mechanism 5 can promptly transport the metal filter bag for further processing, improving the efficiency and automation of the cleaning work.

[0037] refer to Figure 3 and Figure 4 Due to the different thickness of the accumulated dust on the metal filter bag, during the cleaning process, the first cleaning roller 2 and the second cleaning roller 3 may not be able to contact the smaller thickness of the accumulated dust. By adding the lifting mechanism 4 to adjust the height of the second cleaning roller 3, it can adapt to the change in the thickness of the dust.

[0038] The lifting mechanism 4 includes several first rods 45, a tensioning mechanism 42, a sensing module 41, and a linkage assembly 43 that drives the first rods 45 to rotate. The top surface of the frame 1 is provided with several threaded holes 11, with the bottom ends of the first rods 45 threadedly connected to the threaded holes. The linkage assembly 43 can simultaneously drive the four first rods 45 to rotate, causing the first rods 45 to move up and down within the threaded holes 11, thereby driving the mounting plate 44 and the second cleaning roller 3 to adjust their height. The sensing module 41 detects the degree of pressure between the first cleaning roller 2 and the metal filter bag, and the tensioning mechanism 42 tightens or loosens the belt length when driving the second cleaning roller 3.

[0039] refer to Figure 4The sensing module 41 includes a pressing block 414 slidably connected to a first rod 45. The pressing block 414 is disposed below the mounting plate 44 and can flexibly move up and down on the first rod 45 to accurately sense changes in the position of the mounting plate 44. A pressure sensor 416 is disposed between the pressing block 414 and the mounting plate 44. The first rod 45 is provided with a second spring 413. One end of the second spring 413 abuts the top of the frame 1 and the other end abuts the mounting plate 44. The second spring 413 forces the pressing block 414 to move toward the mounting plate 44. When the reaction force of the metal filter bag is transmitted, the second spring 413 undergoes compression deformation according to the magnitude of the force. This compression deformation forces the pressing block 414 to move more closely toward the mounting plate 44, thereby enabling the pressure sensor 416 between the pressing block 414 and the mounting plate 44 to more accurately detect the pressure between the two. For example, if the pressure sensor 416 detects an excessively high pressure value, it indicates that the cleaning roller is pressing the metal filter bag too tightly, potentially damaging the metal filter bag. At this point, the lifting mechanism 4 can automatically adjust the height of the second cleaning roller 3 based on this feedback signal, reducing the pressure exerted by the cleaning roller on the metal filter bag. Conversely, if the pressure is too low, it indicates that the contact between the cleaning roller and the metal filter bag is not close enough, and the cleaning effect may be affected. The lifting mechanism 4 can adjust the height of the second cleaning roller 3 accordingly, increasing the pressure exerted by the cleaning roller on the metal filter bag to ensure optimal cleaning results.

[0040] refer to Figure 5 The linkage assembly 43 includes a reduction gear housing 431 rotatably connected to the end of the first rod 45. Four sets of gear assemblies 433 are arranged in the reduction gear housing 431. The gear assembly 433 reduces the speed and increases the torque through the engagement of gears of different sizes. The power after gear deceleration is transmitted from the output end to the first rod 45. The input end of the gear assembly 433 is provided with a first motor 432. When working, the first motor 432 is started, and the power is transmitted to the first rod 45 through the gear assembly 433, so that the first rod 45 moves up and down in the threaded hole 11, thereby driving the mounting plate 44 and the second cleaning roller 3 to adjust the height.

[0041] The principle of operation of a surface cleaning device for a strip-shaped object in this embodiment is as follows:

[0042] First, the transport start-up phase begins. The second motor 51 in the transport mechanism 5 drives the transport rollers 52, providing power for the movement of the metal filter bag. The support rollers 53 provide auxiliary support, preventing the metal filter bag from deforming or shifting under the influence of gravity. Driven by the transport rollers 52 and support rollers 53, the metal filter bag moves between the first cleaning roller 2 and the second cleaning roller 3. Simultaneously, the ultrasonic generator 55 continuously emits ultrasonic waves, which pass through the metal filter bag and are received by the ultrasonic receiver 56. By analyzing the propagation characteristics of the ultrasonic waves in the metal filter bag, the plate dust thickness of the metal filter bag can be determined in real time.

[0043] Next, the cleaning rollers enter the working phase. The third motor 81 on the frame 1 drives the first cleaning roller 2 via a belt drive. The belt drive transmits power between the first and second cleaning rollers 2 and 3, causing them to rotate and clean the surface of the metal filter bag. The first and second cleaning rollers 2 and 3 can be made of copper wire, numerous protrusions, or bristle brushes fixed to the surface of the rollers. The rollers are equipped with a circumferentially closed-loop recess, which provides better positioning when cleaning the metal filter bags and increases the area over which the metal filter bags can be cleaned.

[0044] Next, the lifting mechanism enters the adjustment phase. Due to the varying thickness of the accumulated dust on the metal filter bags, the first cleaning roller 2 and the second cleaning roller 3 may not be able to reach the thinner areas. At this point, the lifting mechanism 4 begins operation. The first motor 432 in the linkage assembly 43 is activated, and power is transmitted to the first rod 45 via the gear assembly 433 within the reduction gearbox housing 431. The first rod 45 rotates and moves up and down within the threaded hole 11, thereby driving the mounting plate 44 and the second cleaning roller 3 to adjust their height. The pressing block 414 in the sensing module 41 slides on the first rod 45. A pressure sensor 416 between the pressing block 414 and the mounting plate 44 detects the degree of pressure between the first cleaning roller 2 and the metal filter bag. If the pressure sensor 416 detects excessive or insufficient pressure, the lifting mechanism 4 automatically adjusts the height of the second cleaning roller 3 to ensure optimal cleaning results. Simultaneously, the tensioning mechanism 42 adjusts the belt length while driving the second cleaning roller 3 to ensure transmission stability.

[0045] Finally, the cleaning is completed. When the metal filter bags have reached the required cleanliness level, the transport mechanism 5 promptly transports them for further processing based on feedback from the ultrasonic receiver 56. This efficient and automated cleaning process effectively cleans the metal filter bags and improves production efficiency.

[0046] Example 2, reference Figure 6 The difference from Example 1 is that a tensioning mechanism 42 is added to the lifting mechanism 4. When the second cleaning roller 3 moves under the action of the lifting mechanism 4, the tension of the conveyor belt between the first cleaning roller 2 and the second cleaning roller 3 will change. In order to adapt to the change in tension, the tensioning mechanism 42 is set up for adjustment.

[0047] The tensioning mechanism 42 includes a polished rod 421 fixedly connected to a movable rod. The polished rod 421 is slidably connected to a support base 422. The second cleaning roller 3 is rotatably connected to the support base 422. A first spring 423 is provided between the support base 422 and the end of the polished rod 421. The first spring 423 is mounted on the polished rod 421 and forces the support base 422 to move toward the other end of the polished rod 421. The first spring 423 is mounted on the polished rod 421, with one end connected to the support base 422 and the other end resting on the end of the polished rod 421. When the movement of the second cleaning roller 3 causes the belt tension to change, the first spring 423 automatically adjusts its compression or extension according to the change in tension. If the belt tends to slacken, the first spring 423 uses its elastic potential energy to push the support base 422 toward the other end of the polished rod 421, thereby increasing the distance between the first cleaning roller 2 and the second cleaning roller 3 and restressing the belt. On the contrary, if the belt is too tight, the first cleaning roller 2 will drive the support seat 422 under the action of tension to overcome the elastic force of the first spring 423 and move closer to the end of the polished rod 421, thereby appropriately reducing the tension of the belt.

[0048] When the second cleaning roller 3 moves under the action of the lifting mechanism 4, it causes the first cleaning roller 2, which is connected to it via a belt drive, to change position accordingly. The first spring 423 between the support seat 422 and the end of the polished rod 421 automatically adjusts its compression or extension according to the change in belt tension. If the belt tends to relax, the first spring 423 uses its elastic potential energy to push the support seat 422 toward the other end of the polished rod 421, thereby increasing the distance between the first cleaning roller 2 and the second cleaning roller 3 and restressing the belt. If the belt is too tight, the tension of the first cleaning roller 2 will drive the support seat 422 to overcome the elastic force of the first spring 423 and move it closer to the end of the polished rod 421, thereby appropriately reducing the belt tension.

[0049] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A surface cleaning device for a strip-shaped object, characterized in that: The invention comprises a frame (1), a first cleaning roller (2), a second cleaning roller (3), and a transport mechanism (5), wherein the first cleaning roller (2), the second cleaning roller (3), and the transport mechanism (5) are all directly or indirectly mounted on the frame (1), wherein the first cleaning roller (2) and the second cleaning roller (3) can rotate relative to the frame, the first cleaning roller (2) and the second cleaning roller (3) are mounted at different heights, and a cleaning space (9) is formed between the first cleaning roller (2) and the second cleaning roller (3), during the cleaning process, the transport mechanism (5) transports the strip-shaped object to the cleaning space (9) and enables the strip-shaped object to move back and forth in the cleaning space (9), and the frame (1) is further provided with a power assembly (8) for driving the first cleaning roller (2) and the second cleaning roller (3) to rotate.

2. The surface cleaning device for strip-shaped objects according to claim 1, characterized in that: The number of the first cleaning rollers (2) is a, the number of the second cleaning rollers (3) is b, the sum of a and b is greater than or equal to 3, wherein a and b are both greater than 0, and the first cleaning rollers (2) and the second cleaning rollers (3) are alternately staggered.

3. The surface cleaning device for strip-shaped objects according to claim 2, characterized in that: The invention also includes a lifting mechanism (4) arranged on the frame (1), the lifting mechanism (4) including a mounting plate (44), a lifting assembly (46), and a sensing module (41), the second cleaning roller (3) is mounted on the mounting plate (44), the lifting assembly (46) drives the mounting plate (44) to move up and down, the sensing module (41) detects the pressing force between the second cleaning roller (3) and the strip-shaped object, and controls the height of the second cleaning roller (3) through the lifting assembly (46) according to the measured pressing force.

4. The surface cleaning device for strip-shaped objects according to claim 3, characterized in that: The lifting assembly (46) includes a plurality of first rods (45) and a linkage assembly (43) for driving the first rods (45) to rotate. The mounting plate (44) is fixed to the first rods (45). The top surface of the frame (1) is provided with a plurality of threaded holes (11). The bottom ends of the first rods (45) are threadedly connected to the threaded holes (11). The linkage assembly (43) synchronously drives the first rods (45) to rotate.

5. The surface cleaning device for strip-shaped objects according to claim 4, characterized in that: The linkage assembly (43) includes a gear set (433), a housing (431) rotatably connected to the end of the first rod (45), and a first motor (432) disposed on the housing (431). The first motor (432) drives all the first rods (45) to rotate through the gear set (433).

6. The surface cleaning device for strip-shaped objects according to claim 5, characterized in that: The sensing module (41) includes a pressing block (414) slidably connected to the first rod (45), the pressing block (414) is arranged below the mounting plate (44), a pressure sensor (416) is provided between the pressing block (414) and the mounting plate (44), the first rod (45) is sleeved with a second spring (413), one end of the second spring (413) abuts against the top of the frame (1), and the other end abuts against the mounting plate (44), and the second spring (413) forces the pressing block (414) to abut against the mounting plate (44).

7. The surface cleaning device for a strip-shaped object according to claim 6, characterized in that: The frame (1) is fixedly connected to an ash hopper (6), which is arranged below the first cleaning roller (2) and the second cleaning roller (3), and a collection box (7) is provided at the outlet end of the lower end of the ash hopper (6).

8. The surface cleaning device for strip-shaped objects according to claim 7, characterized in that: The transport mechanism (5) includes a support roller (53) and a transport roller (52) rotatably connected to the frame (1), a second motor (51) driving the transport roller (52) to rotate, a bracket (54) fixedly connected to the frame (1), an ultrasonic receiver (56) fixedly connected to the bracket (54), and an ultrasonic generator (55) fixedly connected to the frame (1). The ultrasonic generator (55) emits an ultrasonic signal, and the ultrasonic receiver (56) receives the reflected signal. The area between the two constitutes a detection area, and the strip-shaped object passes through the detection area under the action of the transport roller (52).

9. The surface cleaning device for a strip-shaped object according to claim 8, characterized in that: The power assembly (8) includes a third motor (81) arranged on the frame, the third motor (81) is connected to the first cleaning roller (2) through a belt drive / chain drive, and the first cleaning roller (2) is connected to the second cleaning roller (3) through a belt drive / chain drive. The lifting mechanism (4) also includes a tensioning mechanism (42), and when the height of the second cleaning roller (3) changes, the tensioning mechanism (42) adjusts the tension of the conveyor belt / chain between the first cleaning roller (2) and the second cleaning roller (3).

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