An automatic control system capable of adjusting wiping pressure

Abstract

The application discloses an automatic control system capable of adjusting wiping pressure, comprising a wiping assembly, a pressure detection and elastic connection assembly, a driving assembly and a central processing unit, the wiping assembly is used for contacting a work surface to perform wiping and cleaning work on the work surface, the driving assembly is used for adjusting the distance between the front end of the wiping assembly and the work surface, the pressure detection and elastic connection assembly is used for collecting the pressure data between the front end of the wiping assembly and the work surface in real time and conducting data transmission, and simultaneously providing elastic buffering for the pressure generated in the wiping process of the wiping assembly, the central processing unit is used for receiving the pressure data conducted by the pressure sensor, comparing the pressure data with a preset pressure threshold, generating corresponding control instructions according to the comparison result, and sending the control instructions to a linear motion mechanism, and the distance between the wiping assembly and the work surface is adjusted through the linear motion mechanism.

Description

Technical Field

[0001] This invention relates to the field of surface cleaning technology, and in particular to an automatic control system capable of adjusting wiping pressure. Background Technology

[0002] With the rapid development of automation technology and artificial intelligence, cleaning operations are gradually shifting from manual operation to automation and intelligence. For example, in petrochemical, wind power operation and maintenance, and large industrial equipment maintenance scenarios, the contact pressure between the front end of the wiping component and the working surface is a key parameter affecting the cleaning effect and operational safety. Too little pressure will result in incomplete cleaning and failure to effectively remove stubborn stains or attachments on the working surface, while too much pressure may damage the working surface or cleaning equipment. Currently, most existing automatic cleaning equipment adopts a fixed control method, that is, the operating trajectory and wiping parameters of the cleaning device are preset before operation. During operation, it is impossible to adjust the wiping pressure in real time according to the actual working conditions. For example, when there are local bumps, depressions or changes in surface roughness on the working surface, the preset fixed wiping height or fixed pressure value is difficult to adapt to the above complex working conditions, resulting in unstable cleaning quality. Although some equipment is equipped with pressure sensors, they are usually only used for pressure monitoring and alarm, and do not solve the problem that the equipment cannot automatically adjust the wiping pressure. Therefore, there is an urgent need to develop a closed-loop automatic control system that can collect wiping pressure data in real time, automatically judge the pressure, and drive the actuator to dynamically adjust the position of the wiping components, so as to improve the operation accuracy, adaptability and safety of automated cleaning equipment. Summary of the Invention

[0003] The purpose of this invention is to provide an automatic control system capable of adjusting wiping pressure to solve the above-mentioned problems.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: An automatic control system capable of adjusting wiping pressure, characterized in that it comprises: Wiping assembly, used to contact the work surface to wipe and clean the work surface; A driving component is used to adjust the pressure between the front end of the wiping component and the working surface. The driving component includes a base plate, a linear motion mechanism disposed on the base plate, and at least one set of slide rail assemblies. The wiping component is connected to the base plate through the slide rail assemblies. The pressure detection and elastic connection component is used to collect pressure data between the front end of the wiping component and the working surface in real time and transmit the pressure data, while providing elastic buffer for the pressure generated during the wiping process of the wiping component; The pressure detection and elastic connection assembly includes a first connecting block, a pressure sensor, an elastic telescopic rod, and a second connecting block that are fixedly connected in sequence along the axial direction. The first connecting block is fixedly connected to the wiping assembly, and the second connecting block is fixedly connected to the linear motion mechanism. The central processing unit (CPU) receives pressure data transmitted from the pressure sensor, analyzes and compares the pressure data with a preset pressure threshold to obtain the analysis and comparison results, generates corresponding control commands based on the analysis and comparison results, and sends the control commands to the linear motion mechanism to adjust the distance between the wiping component and the working surface.

[0005] Preferably, the wiping assembly includes a wiping roller, a reserve roller, a wiping cloth, two connecting plates, and a connecting frame. The two connecting plates are fixedly connected to the connecting frame in symmetrical positions. The two ends of the reserve roller shaft are respectively bearing connected to the ends of the two connecting plates away from the working surface. The two ends of the wiping roller shaft are respectively bearing connected to the ends of the two connecting plates close to the working surface. The two ends of the wiping cloth are respectively wound around the wiping roller and the reserve roller. The first connecting block is fixedly connected to the bottom wall of the connecting frame.

[0006] Preferably, the slide rail assembly includes a slide rail and a slider, the slide rail is fixedly connected to the base plate, the slider is fixedly connected to the bottom of the connecting frame, and the slider is slidably connected to the slide rail.

[0007] Preferably, a support is provided on the substrate, and the motion rod of the linear motion mechanism is connected to the substrate through the support.

[0008] Preferably, the central processing unit is integrated into a remote control console or robot control console, and the central processing unit is communicatively connected to the pressure sensor and the linear motion mechanism respectively.

[0009] Preferably, the preset pressure thresholds include a minimum threshold pressure and a maximum threshold pressure.

[0010] Preferably, the analysis and comparison results include three types of results: pressure greater than the maximum threshold pressure, pressure between the minimum threshold pressure and the maximum threshold pressure, and pressure less than the minimum threshold pressure.

[0011] Preferably, the control command corresponding to the analysis and comparison result being greater than the maximum threshold pressure is to control the linear motion mechanism to drive the wiping component to move away from the working surface; The analysis and comparison results show that the control command corresponding to a pressure less than the minimum threshold is to control the linear motion mechanism to drive the wiping component to move towards the working surface. The analysis and comparison results show that the control command corresponding to the minimum threshold pressure and the maximum threshold pressure is to control the linear motion mechanism to remain locked.

[0012] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention collects pressure data between the front end of the wiping component and the working surface in real time through pressure detection and elastic connection components, and transmits the pressure data to the central processor for analysis and comparison. The central processor generates corresponding control commands based on the analysis and comparison results and controls the drive components to adjust the distance between the wiping component and the working surface, thereby forming a complete control and adjustment loop. This system can always ensure that the pressure between the wiping component and the working surface is maintained within the preset pressure threshold range, which significantly improves the consistency and reliability of cleaning quality. 2. The pressure detection and elastic connection assembly mainly adopts a combination of a first connecting block, a pressure sensor, an elastic telescopic rod, and a second connecting block. The pressure sensor and the elastic telescopic rod are connected to the wiping assembly and the driving assembly through the first connecting block and the second connecting block, respectively. The pressure sensor is used to collect pressure data, and the elastic telescopic rod can provide elastic buffering for the pressure generated by the wiping assembly during the wiping process, so as to avoid the driving assembly from having to adjust frequently when the unevenness of the working surface is only slight. 3. The wiping assembly adopts a dual-roller structure of wiping roller and reserve roller. During the cleaning of the working surface, the wiping roller can be quickly replaced with an unused wiping cloth by the coordinated action of unwinding the reserve roller and rewinding the wiping roller. Attached Figure Description

[0013] Figure 1 This is a flowchart illustrating an automatic control system capable of adjusting wiping pressure.

[0014] Figure 2 This is a cross-sectional structural diagram of the pressure detection and elastic connection component in an embodiment of the present invention.

[0015] Figure 3 This is a schematic diagram of the slide rail assembly in an embodiment of the present invention. Detailed Implementation

[0016] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. However, it should be understood that these descriptions are merely exemplary and not intended to limit the scope of the invention. In the following detailed description, many specific details are set forth for ease of explanation to provide a full understanding of the embodiments of the present invention. However, it is obvious that one or more embodiments may be implemented without these specific details. Furthermore, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concept of the present invention.

[0017] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The terms “comprising”, “including”, etc., as used herein indicate the presence of features, steps, operations and / or components, but do not exclude the presence or addition of one or more other features, steps, operations or components.

[0018] All terms used herein (including technical and scientific terms) have the meanings commonly understood by those skilled in the art, unless otherwise defined. It should be noted that the terms used herein should be interpreted in a manner consistent with the context of this specification and should not be interpreted in an idealized or overly rigid manner.

[0019] Please see the appendix Figure 1 and attached Figure 2 An automatic control system capable of adjusting wiping pressure includes: Wiping component 1 is used to contact the work surface to wipe and clean the work surface; The driving component 2 is used to adjust the pressure between the front end of the wiping component 1 and the working surface. The driving component 2 includes a base plate 20, a linear motion mechanism 21 disposed on the base plate 20, and at least one set of slide rail components 3. The wiping component 1 is connected to the base plate 20 through the slide rail components 3. The pressure detection and elastic connection component 4 is used to collect pressure data between the front end of the wiping component 1 and the working surface in real time and transmit the pressure data, while providing elastic buffer for the pressure generated by the wiping component 1 during the wiping process. The pressure detection and elastic connection assembly 4 includes a first connecting block 40, a pressure sensor 41, an elastic telescopic rod 42, and a second connecting block 43 that are fixedly connected in sequence along the axial direction. The first connecting block 40 is fixedly connected to the wiping assembly 1, and the second connecting block 43 is fixedly connected to the linear motion mechanism 21. The central processing unit (CPU) receives pressure data transmitted by the pressure sensor 41, analyzes and compares the pressure data with a preset pressure threshold to obtain an analysis and comparison result, generates a corresponding control command based on the analysis and comparison result, and sends the control command to the linear motion mechanism 21 to adjust the distance between the wiping component 1 and the working surface.

[0020] The automatic control system adopts the closed-loop control principle: the pressure sensor 41 collects the pressure data between the front end of the wiping component 1 and the working surface in real time, and transmits the pressure data to the central processor at the same time. The central processor analyzes and compares the received pressure data with the preset pressure threshold, generates the corresponding control command based on the pressure data comparison result, and sends the control command to the linear motion mechanism 21 to achieve the purpose of adjusting the distance between the wiping component 1 and the working surface. During the adjustment process, the pressure data between the front end of the wiping component 1 and the working surface is collected at the same time to form a closed-loop control system. The above-mentioned automatic control system is specifically applied as follows: During the wiping operation, the wiping assembly 1 is connected to the linear motion mechanism 21 via the first connecting block 40, pressure sensor 41, elastic telescopic rod 42, and second connecting block 43. At this time, the linear motion mechanism 21 is in a locked state. When the wiping assembly 1 comes into contact with the working surface and generates pressure, this pressure is fed back to the pressure detection and elastic connection assembly 4. The elastic telescopic rod 42 forms a mechanical buffer based on its own elastic characteristics, thereby playing a role in pressure compensation. Specifically, when there are multiple continuous uneven areas on the working surface and the unevenness is not large, the elastic telescopic rod 42 can directly absorb small pressure fluctuations based on its own elasticity, avoiding linear motion caused by each unevenness triggering the adjustment of the drive assembly 2. Frequent adjustments to the mechanism, and the resulting discrepancy between the wiping pressure and actual needs, mean that during this stage, the buffering effect of the elastic telescopic rod 42 keeps the pressure value collected by the pressure sensor 41 within a preset range, without requiring adjustment by the central processing unit. Only after the buffering stabilizes or when the wiping pressure exceeds the buffering range of the elastic telescopic rod 42, causing it to be compressed / stretched to its limit stroke, will the pressure sensor 41 transmit the effective pressure data to the central processing unit in real time. The central processing unit analyzes and compares this pressure data with a preset pressure threshold, and uses the linear motion mechanism 21 to drive the wiping assembly 1 to adjust the distance between it and the working surface, thereby achieving adjustment of the wiping pressure.

[0021] Specifically, the wiping assembly 1 includes a wiping roller 10, a reserve roller 11, a wiping cloth 12, two connecting plates 13, and a connecting frame 14. The two connecting plates 13 are fixedly connected to the connecting frame 14 in a symmetrical position. The two ends of the roller shaft of the reserve roller 11 are respectively bearing connected to the ends of the two connecting plates 13 away from the working surface. The two ends of the roller shaft of the wiping roller 10 are respectively bearing connected to the ends of the two connecting plates 13 near the working surface. The two ends of the wiping cloth 12 are respectively wound around the wiping roller 10 and the reserve roller 11. The first connecting block 40 is fixedly connected to the bottom wall of the connecting frame 14. There are many types of existing wiping devices, such as rollers, discs, and strips. In this invention, the wiping assembly 1 adopts a double-roller structure. The basic frame is built by fixing the connecting plate 13 to the connecting frame 14. The wiping roller 10 and the storage roller 11 are located at both ends of the connecting plate 13, and the wiping cloth 12 is wound around the wiping roller 10 and the storage roller 11 at both ends. The wiping roller 10 is used to clean the working surface, and the storage roller 11 is used to wind the wiping cloth 12 in the initial state so that it can be unwound during the wiping process to replace the wiping cloth 12. It should be noted that, based on the above, the wiping roller 10 and the storage roller 11 usually need to be equipped with a drive device for the wiping roller 10 and a cloth locking device to prevent the automatic winding or unwinding during the wiping process, which would affect the normal use of the wiping assembly 1. For example, a geared motor with a self-locking function can be installed at one end of the roller shaft of the wiping roller 10 to simultaneously realize the driving and position locking of the wiping roller, or the wiping roller 10 and the connecting plate 13 can be connected through a one-way bearing to achieve the same purpose.

[0022] Please see the appendix Figure 3 Considering that there is no direct connection between the wiping assembly 1 and the substrate 20, the following situations exist: If the substrate 20 and the connecting frame 14 are in contact, friction will occur between the connecting frame 14 and the substrate 20 when the wiping assembly 1 is displaced. This will not only cause wear on the connecting frame 14 and the substrate 20, but also indirectly increase the load on the linear motion mechanism 21. If the substrate 20 and the connecting frame 14 are not in contact, that is, the wiping assembly 1 is in a suspended state, then part of the weight of the wiping assembly 1 will be directly applied to the pressure detection and elastic connecting assembly and the linear motion mechanism 21. Under this weight, long-term use will cause the moving rod and the elastic telescopic rod 42 of the linear motion mechanism 21 to bend. Therefore, other structures are needed between the substrate 20 and the connecting frame 14 to solve the above problems. Specifically, the slide rail assembly 3 includes a slide rail 30 and a slider 31. The slide rail 30 is fixedly connected to the substrate 20, and the slider 31 is fixedly connected to the bottom of the connecting frame 14, and the slider 31 is slidably connected to the slide rail 30. The above problems are solved by the slide rail 30 on the substrate 20 and the slider 31 at the bottom of the connecting frame 14. Although there is still friction between the slide rail 30 and the slider 31 in theory, the friction between the slide rail 30 and the slider 31 is negligible compared to the friction formed by the direct contact between the substrate 20 and the connecting frame 14.

[0023] Specifically, a bracket 200 is provided on the substrate 20, and the motion rod of the linear motion mechanism 21 is connected to the substrate 20 through the bracket 200. The body of the linear motion mechanism 21 is connected to the second connecting block 43. Thus, when the motion rod of the linear motion mechanism 21 extends or retracts, it can drive the pressure detection and elastic connection component 4 and the wiping component 1 to move together, thereby adjusting the distance between the wiping component 1 and the working surface. The linear motion mechanism 21 can be a hydraulic cylinder, which is fixedly connected to the bracket 200 through the piston rod of the hydraulic cylinder, or it can be a motor with a threaded rod, which is threadedly connected to the bracket 200.

[0024] Specifically, the central processing unit is integrated into a remote control console or robot control console, and the central processing unit is communicatively connected to the pressure sensor 41 and the linear motion mechanism 21, respectively.

[0025] Specifically, the preset pressure threshold includes a minimum threshold pressure and a maximum threshold pressure; the wiping cloth 12 itself is mostly made of chamois cloth, which has a certain elasticity. At the same time, the wiping roller 10 contacts and cleans the working surface, which is not a high-precision operation. Therefore, the pressure between the wiping roller 10 and the working surface does not need to be precise to a specific pressure value, but can be within a certain range.

[0026] Specifically, the analysis and comparison results include three types of results: pressure greater than the maximum threshold pressure, pressure between the minimum threshold pressure and the maximum threshold pressure, and pressure less than the minimum threshold pressure.

[0027] Specifically, the control command corresponding to the analysis and comparison result being greater than the maximum threshold pressure is to control the linear motion mechanism 21 to drive the wiping component 1 to move away from the working surface; The control command corresponding to the analysis and comparison result being less than the minimum threshold pressure is to control the linear motion mechanism 21 to drive the wiping component 1 to move towards the working surface; The control command corresponding to the analysis and comparison results being between the minimum threshold pressure and the maximum threshold pressure is to control the linear motion mechanism 21 to remain in a locked state.

[0028] Since the preset pressure threshold is a range threshold, the control instructions generated by the central processing unit after analyzing and comparing the pressure data received with the preset pressure threshold are of three types: pressure greater than the maximum threshold, pressure between the minimum threshold and the maximum threshold, and pressure less than the minimum threshold. The analysis and comparison results show that the pressure is greater than the maximum threshold, which means that the distance between the wiping roller 10 and the working surface is too small. The wiping assembly 1 needs to be adjusted to make the wiping roller 10 move away from the working surface. The analysis and comparison results show that the pressure is less than the minimum threshold, which means that the distance between the wiping roller 10 and the working surface is too large. The wiping assembly 1 needs to be adjusted to bring the wiping roller 10 closer to the working surface. The analysis and comparison results indicate that the distance between the minimum threshold pressure and the maximum threshold pressure is appropriate. Therefore, the drive component 2 can remain locked to keep the wiping component 1 in its current position.

[0029] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An automatic control system capable of adjusting wiping pressure, characterized in that, include: Wiping assembly, used to contact the work surface to wipe and clean the work surface; A driving component is used to adjust the pressure between the front end of the wiping component and the working surface. The driving component includes a base plate, a linear motion mechanism disposed on the base plate, and at least one set of slide rail assemblies. The wiping component is connected to the base plate through the slide rail assemblies. The pressure detection and elastic connection component is used to collect pressure data between the front end of the wiping component and the working surface in real time and transmit the pressure data, while providing elastic buffer for the pressure generated by the wiping component during the wiping process; The pressure detection and elastic connection assembly includes a first connecting block, a pressure sensor, an elastic telescopic rod, and a second connecting block that are fixedly connected in sequence along the axial direction. The first connecting block is fixedly connected to the wiping assembly, and the second connecting block is fixedly connected to the linear motion mechanism. The central processing unit (CPU) receives pressure data transmitted by the pressure sensor, analyzes and compares the pressure data with a preset pressure threshold to obtain an analysis and comparison result, generates a corresponding control command based on the analysis and comparison result, and sends the control command to the linear motion mechanism to adjust the distance between the wiping component and the working surface.

2. The automatic control system capable of adjusting wiping pressure according to claim 1, characterized in that: The wiping assembly includes a wiping roller, a reserve roller, a wiping cloth, two connecting plates, and a connecting frame. The two connecting plates are fixedly connected to the connecting frame in symmetrical positions. The two ends of the reserve roller shaft are respectively bearing connected to the ends of the two connecting plates away from the working surface. The two ends of the wiping roller shaft are respectively bearing connected to the ends of the two connecting plates near the working surface. The two ends of the wiping cloth are respectively wound around the wiping roller and the reserve roller. The first connecting block is fixedly connected to the bottom wall of the connecting frame.

3. The automatic control system capable of adjusting wiping pressure according to claim 2, characterized in that: The slide rail assembly includes a slide rail and a slider. The slide rail is fixedly connected to the base plate, and the slider is fixedly connected to the bottom of the connecting frame. The slider is slidably connected to the slide rail.

4. An automatic control system capable of adjusting wiping pressure according to claim 1, characterized in that: The substrate is provided with a bracket, and the motion rod of the linear motion mechanism is connected to the substrate through the bracket.

5. An automatic control system capable of adjusting wiping pressure according to claim 1, characterized in that: The central processing unit is integrated into a remote control console or robot control console, and the central processing unit is communicatively connected to the pressure sensor and the linear motion mechanism, respectively.

6. An automatic control system capable of adjusting wiping pressure according to claim 1, characterized in that: The preset pressure thresholds include minimum threshold pressure and maximum threshold pressure.

7. An automatic control system capable of adjusting wiping pressure according to claim 6, characterized in that: The analysis and comparison results include three types of results: pressure greater than the maximum threshold pressure, pressure between the minimum threshold pressure and the maximum threshold pressure, and pressure less than the minimum threshold pressure.

8. An automatic control system capable of adjusting wiping pressure according to claim 6, characterized in that: The control command corresponding to the analysis and comparison result being greater than the maximum threshold pressure is to control the linear motion mechanism to drive the wiping component to move away from the work surface. The control command corresponding to the analysis and comparison result being less than the minimum threshold pressure is to control the linear motion mechanism to drive the wiping component to move towards the working surface; The control command corresponding to the analysis and comparison results being between the minimum threshold pressure and the maximum threshold pressure is to control the linear motion mechanism to remain in a locked state.

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