Automatic device for cleaning chicken manure

Abstract

The invention discloses an automatic device for cleaning chicken manure, and relates to the technical field of automatic devices. Through mutual cooperation of a first conveying belt and a scraping plate, chicken manure can be conveniently conveyed and scraped off in time, then through a cleaning brush and a guide plate, the surface of the first conveying belt can be conveniently cleaned, and the problem that the chicken manure cannot be cleaned in time is solved; the cleaning brush roller is divided into a plurality of small sections, cleaning is carried out only at the corresponding position where chicken manure residues are detected, and the corresponding small sections of the roller and the driving shaft are made to rotate in an embedded mode by controlling the electrified spring, so that unnecessary energy consumption is avoided, the energy utilization efficiency is greatly improved, and the operation cost is reduced; through a targeted local cleaning mode, the invalid friction time and area of the cleaning brush and the conveying belt are reduced, equipment abrasion is relieved, the service life of the cleaning brush and the conveying belt is prolonged, the maintenance frequency and cost of the equipment are reduced, and the overall stability and reliability of the equipment are improved.

Description

Technical Field

[0001] The invention relates to the technical field of automation devices, and in particular to an automation device for cleaning chicken manure. Background Art

[0002] Chicken manure contains various bacteria, parasites and pathogens. If it is not cleaned up in time, it will have a negative impact on the health of the chickens. It will also emit a pungent odor and pose a threat to the health of the staff. The accumulated chicken manure will breed a large number of pathogens and pests, increase the risk of chickens contracting diseases, and affect the breeding benefits. Traditional chicken manure cleaning usually adopts manual cleaning methods, which involves manually scraping and piling the chicken manure that falls on the ground. This method is inefficient and labor-intensive, and it is difficult to ensure the timeliness and thoroughness of cleaning. The chicken manure left on the ground is prone to bacterial growth, which cannot meet the needs of large-scale farming. In the process of cleaning the chicken manure on the conveyor belt, the rotation of the entire cleaning brush consumes a lot of electricity resources, and the friction between the brush and the conveyor belt shortens the service life of both. Some chicken manure stays on the conveyor belt for a long time and dries up, making it impossible to clean the chicken manure with ordinary scraping operations. Therefore, it is necessary to solve the above technical problems. Summary of the invention

[0003] The purpose of the present invention is to solve the shortcomings in the prior art and to propose an automatic device for cleaning chicken manure.

[0004] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: an automated device for cleaning chicken manure, comprising a support column and a fixing hole opened at the upper end of the support column, the support column is sleeved on the fixing rods fixedly connected equidistantly on both sides of the guard plate, a threaded hole is opened inwardly in the middle of the fixing rod, and the fixing rod tightly fits the support column and the guard plate through a hexagonal bolt, rollers are equidistantly installed between the guard plates, a first conveyor belt is sleeved on the outer side of the roller, a scraping structure is installed on one side of the first conveyor belt, a cleaning mechanism is installed on the rear side of the scraping structure, and a collecting mechanism is installed at the lower end of the scraping mechanism and the cleaning mechanism; The cleaning mechanism includes a collection module, an analysis module and an execution module; An acquisition module detects the image data of the first conveyor belt and the distance data between the conveyor belt and the distance measuring device, and transmits the detected image data and distance data to the analysis module; The analysis module processes the image data, determines whether there are traces of chicken manure at the corresponding position on the first conveyor belt, calculates the volume of chicken manure at the position where the traces of chicken manure are determined to exist, calculates the water content required for cleaning according to the volume of chicken manure, generates a wetting signal, and transmits the wetting signal and the volume of water required for wetting to the execution module; The execution module receives the signal transmitted by the analysis module and performs cleaning operations.

[0005] Preferably, a first motor is horizontally mounted on one side of the guard plate, a driving shaft of the first motor passes through the guard plate and is clamped on one side of the roller, and clamping blocks are horizontally and equidistantly fixed to the outer side of one end of the guard plate.

[0006] The scraping mechanism comprises a scraper fixedly connected between guard plates at one end of the first conveyor belt, and the upper end of the scraper is tightly fitted to the surface of the first conveyor belt.

[0007] Preferably, the cleaning mechanism includes a cleaning brush installed on the rear side of the scraper, the cleaning brush is rotatably installed between the two side guard plates, a guide plate is fixed between the guard plates, and a third motor is installed on the guard plates, and the drive shaft of the third motor passes through the guard plates and is clamped at one end of the cleaning brush.

[0008] Preferably, the collecting mechanism includes a second conveyor belt installed at the lower part of one end of the first conveyor belt, rollers are equidistantly installed inside the guard plates on both sides of the second conveyor belt, a second motor is installed at one end of the guard plate, and the drive shaft of the second motor passes through the guard plate and is clamped in the middle of one end of the roller on one side inside the second conveyor belt.

[0009] Preferably, a U-shaped baffle is clamped on the upper end of the clamping block, one end of the U-shaped baffle is tightly fitted with the upper end of the guard plate on one side of the collecting mechanism, and an arc-shaped limiting groove is opened between the U-shaped baffle and the guard plate, a limiting rod is rotatably installed on the upper end of the guard plate, and one end of the limiting rod is slidably installed in the limiting groove.

[0010] Preferably, the driving shaft of the third motor passes through the entire roller of the cleaning brush, and the roller of the cleaning brush is divided into a number of small sections of the same size. There is a gap between the driving shaft of the third motor and the roller of the cleaning brush, so that the driving shaft will not drive the roller of the cleaning brush to rotate when it rotates. The cleaning brush roller is provided with fitting grooves in four directions on the inner side, and telescopic grooves are provided on the outer side of the driving shaft of the third motor in four directions corresponding to the fitting grooves, and a telescopic plate is installed inside the telescopic groove through an energized spring.

[0011] Preferably, the steps of data analysis by the analysis module are as follows: M1: grayscale processing is performed on the image data of the first conveyor belt, and then the image data of the first conveyor belt width is processed. Segment the grayscale image of the first conveyor belt into The image block, is the number of small segments into which the drum is divided. The grayscale data of the image block is recorded, and then the mean of the recorded grayscale data is calculated. and standard deviation , according to the mean and standard deviation Set the fluctuation range of grayscale data to , mark the data in the recorded grayscale data that are not within the set fluctuation range as abnormal values, remove the abnormal values ​​in the recorded grayscale data, and take the maximum value of the remaining grayscale data and minimum value , establish the grayscale range ; M2: grayscale the collected image data of the first conveyor belt containing chicken manure, divide the grayscale processed image into several grayscale blocks according to the set width value, obtain the grayscale value of each pixel block in each grayscale block, calculate the grayscale mean of the grayscale block, and compare the grayscale mean with the grayscale range. If the grayscale mean corresponding to the grayscale block is within the grayscale range, it is determined that there is no trace of chicken manure at the corresponding position of the first conveyor belt; otherwise, it is determined that there is a trace of chicken manure at the corresponding position; the roller segments and grayscale blocks are numbered from left to right, and then the numbers of the grayscale blocks determined to have traces of chicken manure are recorded, and the recorded numbers are passed to the acquisition module; M3: The acquisition module detects the thickness data change on the first conveyor belt at the corresponding numbered position. The distance data between the clean first conveyor belt and the distance measuring device is , the actual thickness data detected is , if the preset comparison threshold , it is determined that there is chicken manure at the position corresponding to the record number and the chicken manure is compacted, a wetting signal is generated, and the wetting signal is transmitted to the execution module.

[0012] Preferably, the steps of executing the operation by the execution module are as follows: S1: receiving the record number data, and then controlling to disconnect the power supplied to the energized spring inside the telescopic slot at the position corresponding to the record number, so that the energized spring is powered off and pops out, pushing the telescopic plate to move outward, and when the end of the telescopic plate in contact with the inner wall of the roller reaches the position of the fitting groove during the process of rotating with the driving shaft, it fits with the fitting groove, so that the small section of the roller rotates with the driving shaft, and the cleaning bristles on the outer side of the roller clean the corresponding position of the record number on the first conveyor belt; S2: The sprinkler head on the guide plate is connected to an external water supply tank. After a wetting signal is generated at the position of the record number, water supply is performed through a water pump, and the amount of water stored in the water tank is monitored. When the amount of water stored decreases to the volume of water required for wetting, the water supply is stopped.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. The first conveyor belt and the scraper cooperate with each other to facilitate the timely transportation and scraping of chicken manure, improve the timeliness of chicken manure cleaning, and thus realize the function of preventing bacteria from growing. Then, the surface of the first conveyor belt can be cleaned by cleaning the brush and the guide plate, which improves the cleanliness of the equipment for long-term use, and thus realizes the function of cleaning the equipment, and finally solves the problem of not being able to clean chicken manure in time. 2. By dividing the cleaning brush roller into several small sections, only at the corresponding position where chicken manure residue is detected, the corresponding roller section is engaged and rotated with the drive shaft by controlling the energized spring to clean, thus avoiding unnecessary energy consumption, greatly improving energy utilization efficiency and reducing operating costs; through targeted local cleaning methods, the ineffective friction time and area between the cleaning brush and the conveyor belt are reduced, effectively reducing equipment wear, significantly extending the service life of the cleaning brush and conveyor belt, reducing the frequency and cost of equipment maintenance, and improving the overall stability and reliability of the equipment; the detection and analysis of chicken manure traces, thickness and other data can accurately determine whether the chicken manure is compacted, and calculate the water content and water volume required for cleaning based on the volume and water content of the chicken manure, and perform wetting operations when necessary, ensuring that even dry chicken manure can be effectively cleaned, maintaining the clean state of the conveyor belt, and ensuring the continuous and efficient cleaning of chicken manure. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings: Figure 1 It is a schematic diagram of the overall three-dimensional structure proposed by the present invention; Figure 2 This is a schematic diagram of the overall three-dimensional structure of the other side proposed by the present invention; Figure 3 This is a schematic diagram of the overall three-dimensional structure when viewed from above proposed by the present invention; Figure 4 This is a schematic diagram of the rear-view overall three-dimensional structure proposed by the present invention; Figure 5 A side cross-sectional structural schematic diagram of the present invention; Figure 6 It is a system flow chart of the present invention.

[0015] Serial numbers in the figure: 1. Support column; 2. Fixing rod; 3. Hexagonal bolt; 4. First conveyor belt; 5. Guard plate; 6. First motor; 7. U-shaped baffle; 8. Clamping block; 9. Second conveyor belt; 10. Second motor; 11. Third motor; 12. Limit rod; 13. Limit groove; 14. Scraper; 15. Cleaning brush; 16. Guide plate. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0017] Example: See Figure 1-6 The present invention provides an automatic device for cleaning chicken manure, comprising a support column 1 and a fixing hole opened at the upper end of the support column 1, the support column 1 is sleeved on the fixing rods 2 fixedly connected equidistantly on both sides of the guard plate 5, a threaded hole is opened inwardly in the middle of the fixing rod 2, and the fixing rod 2 tightly fits the support column 1 and the guard plate 5 through the hexagonal bolt 3, rollers are equidistantly installed between the guard plates 5, the outer side of the rollers is sleeved with a first conveyor belt 4, a scraping structure is installed on one side of the first conveyor belt 4, a cleaning mechanism is installed on the rear side of the scraping structure, and a collecting mechanism is installed at the lower end of the scraping mechanism and the cleaning mechanism, through the support The support column 1 and the guard plate 5 facilitate the first conveyor belt 4 to be close to the bottom of the chicken coop; a first motor 6 is horizontally installed on one side of the guard plate 5, and the driving shaft of the first motor 6 passes through the guard plate 5 and is clamped on one side of the roller. The outer side of one end of the guard plate 5 is horizontally and equidistantly fixed with clamping blocks 8, which facilitate the first motor 6 driving shaft to drive the roller to rotate through the guard plate 5 and the first motor 6; the scraping mechanism includes a scraper 14 fixed between the guard plates 5 at one end of the first conveyor belt 4, and the upper end of the scraper 14 is tightly fitted with the surface of the first conveyor belt 4, so that the chicken manure on the surface of the first conveyor belt 4 can be scraped off through the scraper 14.

[0018] The cleaning mechanism includes a collection module, an analysis module and an execution module; The driving shaft of the third motor 11 runs through the entire roller of the cleaning brush 15, and the roller of the cleaning brush 15 is divided into a number of small sections of the same size. There is a gap between the driving shaft of the third motor 11 and the roller of the cleaning brush 15, so that the driving shaft will not drive the roller of the cleaning brush 15 to rotate when rotating. The inner side of the roller of the cleaning brush 15 is provided with fitting grooves in four directions, and the outer side of the driving shaft of the third motor 11 is provided with telescopic grooves in four directions corresponding to the fitting grooves, and a telescopic plate is installed inside the telescopic groove through an energized spring; Before the chicken manure is transported, the image data of the first conveyor belt 4 is gray-scaled and then the image data of the first conveyor belt 4 is gray-scaled. The grayscale image of the first conveyor belt 4 is divided into The image block, is the number of small segments into which the drum is divided. The grayscale data of the image block is recorded, and then the mean of the recorded grayscale data is calculated. and standard deviation , according to the mean and standard deviation Set the fluctuation range of grayscale data to , mark the data in the recorded grayscale data that are not within the set fluctuation range as abnormal values, remove the abnormal values ​​in the recorded grayscale data, and take the maximum value of the remaining grayscale data and minimum value , establish the grayscale range ; After the scraping mechanism completes scraping the chicken manure on the first conveyor belt 4, the image on the first conveyor belt 4 is collected by the image acquisition device arranged on the inner side of the U-shaped baffle 7, and the post-analysis module grayscales the collected image, divides the grayscale processed image into a plurality of grayscale blocks according to the set width value, obtains the grayscale value of each pixel block in each grayscale block, calculates the grayscale mean of the grayscale block, and compares the grayscale mean with the grayscale range. If the grayscale mean corresponding to the grayscale block is within the grayscale range, it is determined that there is no trace of chicken manure at the corresponding position of the first conveyor belt 4; otherwise, it is determined that there is a trace of chicken manure at the corresponding position; The drum segments and gray blocks are numbered from left to right, and then the gray block numbers that are determined to have traces of chicken manure are recorded, and the recorded numbers are passed to the acquisition module; The acquisition module detects the thickness data change on the first conveyor belt 4 at the corresponding numbered position, and the distance data between the clean first conveyor belt 4 and the distance measuring device is , the actual thickness data detected is , if the preset comparison threshold , it is determined that there is chicken manure at the position corresponding to the record number and the chicken manure is compacted, a wetting signal is generated, and the wetting signal is transmitted to the execution module; After scraping the chicken manure, the remaining chicken manure is considered to be irregularly shaped columns. The volume of the chicken manure is It is equal to the chicken manure area multiplied by the chicken manure thickness data. The chicken manure area is determined by the number of pixel blocks occupied and the area corresponding to the pixel blocks; the volume of water content in chicken manure is detected , is the density of water, is the density of chicken manure, is the original moisture content of chicken manure; the density of chicken manure is obtained by collecting density data of multiple chicken manures in history and calculating the average value; When the chicken manure reaches the water content ratio It is convenient for cleaning operation. The total water volume contained in chicken manure , then the volume of water required for wetting is .

[0019] In the present invention, the cleaning mechanism includes a cleaning brush 15 installed on the rear side of the scraper 14, the cleaning brush 15 is rotatably installed between the guard plates 5 on both sides, a guide plate 16 is fixedly connected between the guard plates 5, and a third motor 11 is installed on the guard plates 5, the driving shaft of the third motor 11 passes through the guard plates 5 and is clamped at one end of the cleaning brush 15, through the cleaning brush 15 and the guide plate 16, it is convenient to clean the surface of the first conveyor belt 4, and the cleaned chicken manure can be prevented from splashing; the collecting mechanism includes a second conveyor belt 9 installed at the lower part of one end of the first conveyor belt 4, rollers are equidistantly installed inside the guard plates 5 on both sides of the second conveyor belt 9, and the guard plates 5 are connected to the second conveyor belt 9. A second motor 10 is installed at the end, and the driving shaft of the second motor 10 passes through the guard plate 5 and is clamped at the middle of one end of the roller on one side of the second conveyor belt 9. Through the second conveyor belt 9 and the second motor 10, it is convenient to centrally process chicken manure; a U-shaped baffle plate 7 is clamped at the upper end of the clamping block 8, one end of the U-shaped baffle plate 7 is tightly fitted with the upper end of the guard plate 5 on one side of the collecting mechanism, and an arc-shaped limiting groove 13 is opened between the U-shaped baffle plate 7 and the guard plate 5, and a limiting rod 12 is rotatably installed on the upper end of the guard plate 5, and one end of the limiting rod 12 is slidably installed in the limiting groove 13, and the U-shaped baffle plate 7 is convenient to fix through the limiting rod 12 and the limiting groove 13.

[0020] Working principle: When the present invention is used, the automation device is first installed on the bottom of the chicken cage through the guard plate 5 and the support column 1, and then the guard plate 5 and the support column 1 are fixed by the fixing rod 2 and the hexagonal bolt 3, and then the chicken manure dropped on the first conveyor belt 4 is transported by the first motor 6 and the first conveyor belt 4, and then the chicken manure on the first conveyor belt 4 is scraped by the scraper 14, and then the chicken manure is prevented from splashing by the U-shaped baffle 7, and then the chicken manure remaining on the surface of the first conveyor belt 4 is cleaned by the cleaning brush 15 and the third motor 11, and then the chicken manure is prevented from splashing during cleaning by the guide plate 16, and then the chicken manure on the first conveyor belt 4 is transported in a centralized manner by the second conveyor belt 9 and the second motor 10, and then the U-shaped baffle 7 is used to prevent the high chicken manure from splashing during the transportation process, and then the limiting groove 13 and the limiting rod 12 are used to fix the U-shaped baffle 7 vertically, and then the position of the U-shaped baffle 7 is further fixed by the clamping block 8.

[0021] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An automated device for cleaning chicken manure, comprising a support column (1) and a fixing hole formed at the upper end of the support column (1), characterized in that: The support column (1) is sleeved on the fixing rods (2) fixedly connected at equal distances on both sides of the guard plate (5); a threaded hole is opened inwardly in the middle of the fixing rod (2); and the fixing rod (2) tightly fits the support column (1) and the guard plate (5) through the hexagonal bolt (3); rollers are installed at equal distances between the guard plates (5); a first conveyor belt (4) is sleeved on the outer side of the roller; a scraping structure is installed on one side of the first conveyor belt (4); a cleaning mechanism is installed on the rear side of the scraping structure; and a collecting mechanism is installed at the lower ends of the scraping mechanism and the cleaning mechanism; The cleaning mechanism also includes a collection module, an analysis module and an execution module; A collection module detects image data of the first conveyor belt (4) and distance data between the conveyor belt (4) and the distance measuring device, and transmits the detected image data and distance data to the analysis module; The analysis module processes the image data, determines whether there are traces of chicken manure at the corresponding position on the first conveyor belt (4), calculates the volume of chicken manure at the position where the traces of chicken manure are determined to exist, calculates the water content required for cleaning based on the volume of chicken manure, generates a wetting signal, and transmits the wetting signal and the volume of water required for wetting to the execution module; The execution module receives the signal transmitted by the analysis module and performs cleaning operations.

2. The automatic device for cleaning chicken manure according to claim 1, characterized in that: A first motor (6) is horizontally mounted on one side of the guard plate (5); a drive shaft of the first motor (6) passes through the guard plate (5) and is clamped on one side of the roller; and clamping blocks (8) are horizontally and equidistantly fixed to the outer side of one end of the guard plate (5).

3. The automatic device for cleaning chicken manure according to claim 2, characterized in that: The scraping mechanism comprises a scraper (14) fixedly connected between a guard plate (5) at one end of the first conveyor belt (4), and the upper end of the scraper (14) is tightly fitted to the surface of the first conveyor belt (4).

4. The automatic device for cleaning chicken manure according to claim 3 is characterized in that: The cleaning mechanism comprises a cleaning brush (15) mounted on the rear side of the scraper (14); the cleaning brush (15) is rotatably mounted between the guard plates (5) on both sides; a guide plate (16) is fixedly connected between the guard plates (5); a third motor (11) is mounted on the guard plates (5); a drive shaft of the third motor (11) passes through the guard plates (5) and is clamped on one end of the cleaning brush (15).

5. The automatic device for cleaning chicken manure according to claim 4, characterized in that: The collecting mechanism comprises a second conveyor belt (9) mounted at the lower part of one end of the first conveyor belt (4), rollers are equidistantly mounted inside the guard plates (5) on both sides of the second conveyor belt (9), a second motor (10) is mounted at one end of the guard plate (5), and a drive shaft of the second motor (10) passes through the guard plate (5) and is clamped at the middle of one end of a roller on one side inside the second conveyor belt (9).

6. The automatic device for cleaning chicken manure according to claim 5, characterized in that: A U-shaped baffle (7) is clamped on the upper end of the clamping block (8), one end of the U-shaped baffle (7) is tightly fitted with the upper end of a guard plate (5) on one side of the collecting mechanism, and an arc-shaped limiting groove (13) is provided between the U-shaped baffle (7) and the guard plate (5), a limiting rod (12) is rotatably mounted on the upper end of the guard plate (5), and one end of the limiting rod (12) is slidably mounted in the limiting groove (13).

7. The automatic device for cleaning chicken manure according to claim 6, characterized in that: The driving shaft of the third motor (11) passes through the entire roller of the cleaning brush (15), and the roller of the cleaning brush (15) is divided into a plurality of small sections of the same size. A gap exists between the driving shaft of the third motor (11) and the roller of the cleaning brush (15), so that the driving shaft will not drive the roller of the cleaning brush (15) to rotate when rotating. The roller of the cleaning brush (15) is provided with fitting grooves in four directions on the inner side, and telescopic grooves are provided on the outer side of the driving shaft of the third motor (11) in four directions corresponding to the fitting grooves, and a telescopic plate is installed inside the telescopic groove via an energized spring.

8. The automatic device for cleaning chicken manure according to claim 7, characterized in that: The steps for data analysis in the analysis module are as follows: M1: grayscale processing is performed on the image data of the first conveyor belt (4), and then the image data of the first conveyor belt (4) is processed according to the width data of the first conveyor belt (4). The grayscale image of the first conveyor belt (4) is divided into The image block, is the number of small segments into which the drum is divided. The grayscale data of the image block is recorded, and then the mean of the recorded grayscale data is calculated. and standard deviation , according to the mean and standard deviation Set the fluctuation range of grayscale data to , mark the data in the recorded grayscale data that are not within the set fluctuation range as abnormal values, remove the abnormal values ​​in the recorded grayscale data, and take the maximum value of the remaining grayscale data and minimum value , establish the grayscale range ; M2: grayscale processing is performed on the collected image data of the first conveyor belt (4) containing chicken manure, the grayscale processed image is divided into a plurality of grayscale blocks according to a set width value, the grayscale value of each pixel block in each grayscale block is obtained, and the grayscale mean of the grayscale block is calculated, and the grayscale mean is compared with the grayscale range. If the grayscale mean corresponding to the grayscale block is within the grayscale range, it is determined that there is no trace of chicken manure at the corresponding position of the first conveyor belt (4); otherwise, it is determined that there is a trace of chicken manure at the corresponding position; the roller segments and grayscale blocks are numbered in order from left to right, and then the number of the grayscale block determined to have a trace of chicken manure is recorded, and the recorded number is transmitted to the acquisition module; M3: The acquisition module detects the thickness data change on the first conveyor belt (4) at the corresponding numbered position. The distance data between the clean first conveyor belt (4) and the distance measuring device is: , the actual thickness data detected is , if the preset comparison threshold , it is determined that there is chicken manure at the position corresponding to the record number and the chicken manure is compacted, a wetting signal is generated, and the wetting signal is transmitted to the execution module.

9. The automatic device for cleaning chicken manure according to claim 8, characterized in that: The steps for executing the module to perform operations are as follows: S1: receiving the record number data, and then controlling to disconnect the power supplied to the energized spring inside the telescopic slot at the position corresponding to the record number, so that the energized spring is powered off and pops out, pushing the telescopic plate to move outward, and when the end of the telescopic plate that contacts the inner wall of the roller reaches the position of the engaging slot during the process of rotating with the drive shaft, it engages with the engaging slot, so that the small section of the roller rotates with the drive shaft, and the cleaning bristles (15) on the outer side of the roller clean the position corresponding to the record number on the first conveyor belt (4); S2: The water spray head on the guide plate (16) is connected to an external water supply tank. After a wetting signal is generated at the position of the record number, a water supply operation is performed through a water pump, and the amount of water stored in the water tank is monitored. When the amount of water stored decreases to the volume of water required for wetting, the water supply is stopped.

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