Automatic corn sorting and boxing mechanism and using method

Abstract

The invention relates to the technical field of corn screening, in particular to an automatic corn sorting and boxing mechanism and a using method.The automatic corn sorting and boxing mechanism comprises an upper computer and a lower computer, the lower computer comprises a device body, a set of trays are arranged at the upper end of the device body, the lower end of each tray is fixedly connected with a base, and a movable plate is arranged in each tray; the lower end of each movable plate is fixedly connected with a cleaning scraper, a weighing sensor is arranged in the base, the rear end of each movable plate is fixedly connected with a movable long strip, the lower end of each tray is provided with a long groove, the lower end of each tray is provided with a movable block, and the movable blocks are fixedly connected with the movable long strips. Each moving long strip penetrates through the corresponding long groove to be fixedly connected with the corresponding moving block, the motor is started firstly, it is guaranteed that misjudgment caused by residues is avoided when the automatic corn sorting and boxing mechanism carries out subpackaging on corn, and therefore the accuracy and reliability of the automatic corn sorting and boxing mechanism in the corn subpackaging process are remarkably improved.

Description

Technical Field

[0001] The present invention relates to the technical field of corn screening, and in particular to an automatic corn sorting and packing mechanism and a use method thereof. Background Art

[0002] The automatic corn sorting and packing mechanism is used for post-harvest corn processing. Its main functions include conveying, sorting, and packing. The mechanism sends corn cobs or corn kernels to the processing area through a conveyor belt, and uses sensors to detect the size, color, completeness and other indicators of the corn. The control system selects qualified products according to preset standards and removes individuals that are damaged, moldy, or do not match the size. The qualified corn after sorting is transferred to the packing station by a robotic arm or a pushing device. The mechanism automatically adjusts the placement of the box according to the specifications of the box to ensure that the corn is evenly filled and avoids squeezing. Some mechanisms are equipped with weighing modules, which can control the weight of each box of corn within the set range. After packing, it is pushed to the next link. The entire process does not require human intervention, realizing the automated operation of corn from conveying to sorting to packing, improving processing efficiency and ensuring product consistency.

[0003] However, during the implementation of the above technical solution, at least the following technical problems were found:

[0004] During the corn sorting and packing process of the automatic corn sorting and packing mechanism, due to the mechanical operation and the characteristics of corn grains, some corn grains may inevitably adhere to the tray surface of the automatic corn sorting and packing mechanism. Over time, these attached corn grains will gradually accumulate and form a certain amount of accumulation. When these accumulated corn grains reach a certain number, they will affect the total weight of the corn, causing the actual weighing result to deviate from the expected value. This deviation may cause the automatic corn sorting and packing mechanism to misjudge when performing the corn packing task, and fail to accurately pack the corn according to the preset standards. This not only affects the packing efficiency of the automatic corn sorting and packing mechanism, but also significantly reduces its accuracy and reliability in corn packing, thereby affecting the quality and efficiency of the entire packing process. Summary of the Invention

[0005] Technical problem to be solved: During the corn sorting and packing process of the automatic corn sorting and packing mechanism, due to the mechanical operation and the characteristics of corn particles, some corn particles may inevitably adhere to the tray surface of the automatic corn sorting and packing mechanism. Over time, these attached corn particles will gradually accumulate and form a certain amount of accumulation. When these accumulated corn particles reach a certain number, they will affect the total weight of the corn, causing the actual weighing result to deviate from the expected value. This deviation may cause the automatic corn sorting and packing mechanism to misjudge when performing the corn packing task, and fail to accurately pack the corn according to the preset standards. This not only affects the packing efficiency of the automatic corn sorting and packing mechanism, but also significantly reduces its accuracy and reliability in corn packing, thereby affecting the quality and efficiency of the entire packing process.

[0006] In view of the deficiencies in the prior art, the present invention provides an automatic corn sorting and packing mechanism and a method of use, thereby solving the technical problems mentioned in the background technology.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] The present invention relates to an automatic corn sorting and packing mechanism, comprising an upper computer and a lower computer, wherein the lower computer comprises a device main body, a group of trays are provided at the upper end of the device main body, the lower end of each tray is fixedly connected to a base, a movable plate is provided inside each tray, the lower end of each movable plate is fixedly connected to a cleaning scraper, a weighing sensor is provided inside the base, wherein the rear end of each movable plate is fixedly connected to a movable strip, a long slot is provided at the lower end of each tray, a movable block is provided at the lower end of each tray, each movable strip passes through the long slot and is fixedly connected to the corresponding movable block, both ends of each movable block are rotatably connected to a fixed plate, the upper end of each fixed plate is fixedly connected to the corresponding tray, the right surface of each fixed plate located at the right end is fixedly connected to a motor, the output port of each motor passes through the corresponding fixed plate and is fixedly connected to a threaded rod, the upper computer comprises a weight sensing cleaning system, and the weight sensing cleaning system comprises an early calibration module, a real-time detection and judgment module, a motor drive and cleaning module and an end judgment module.

[0009] In one possible implementation, the load cell outputs an analog voltage signal that is proportional to the weight, and the "weight-voltage" correspondence of the sensor is calibrated;

[0010] Calibration parameter definition:

[0011] G: actual total weight of the tray + corn kernels, U: analog voltage output by the sensor, k: sensor sensitivity coefficient, b: sensor zero offset.

[0012] Empty calibration: When the pallet is empty, the pallet weight is recorded as G0, and the sensor output voltage is U0;

[0013] Loading calibration: Place corn kernels of known weight into the tray. At this time, the total weight G = G0 + G1, and record the sensor output voltage U1.

[0014] In one possible implementation, the calibration formula is:

[0015] The linear relationship of the sensor is: U = k·G + b;

[0016] Bring in two calibration data:

[0017] The sensor sensitivity coefficient is:

[0018] The zero point offset of the sensor is: b = U0-k·G0.

[0019] In one possible implementation, the controller reads the real-time output voltage of the sensor through an A / D converter: U 实时 , substitute the formula to calculate the actual total weight: G 实时 : A weight threshold needs to be set: G th , when G 实时 >G th When the tray is checked, it is determined that there are corn kernels that need to be cleaned.

[0020] In one possible implementation, when the judgment condition of "there are corn kernels" is met, the controller triggers the motor to start and drives the cleaning scraper to move horizontally for cleaning; after cleaning is completed, the motor stops and the controller outputs a high level to the motor driver. The condition for starting the motor is: motor start <=> meets the judgment result of the formula.

[0021] In one possible implementation, to ensure cleanliness, after the cleaning scraper returns to the starting point, check the weight again:

[0022] When G 实时 ≤G th When G 实时 >G th Repeat the cleaning process.

[0023] A method for using an automatic corn sorting and packing mechanism comprises the following steps:

[0024] S1: The weighing sensor under the tray detects the total weight. The device compares the detected weight with the pre-set "baseline value + threshold value". If the weight exceeds the threshold, it indicates that there are residual corn kernels. The system automatically starts the motor to move the cleaning scraper on the tray to clean it. If the weight does not exceed the threshold, the device remains in standby mode.

[0025] S2: The motor drives the cleaning scraper to move horizontally from the starting point to the end point, brushing off the corn kernels on the tray during the process. After reaching the end point, the motor reverses and the cleaning scraper automatically returns to the starting point.

[0026] S3: After cleaning, the sensor detects the weight again. If it is lower than the threshold, the device will be on standby. If there is still residue, the cleaning process will be repeated until the standard is met.

[0027] Beneficial effects compared with existing technologies:

[0028] 1. In this solution, the motor is started first. After starting, the motor will drive the threaded rod connected to it to rotate. As the threaded rod rotates, the moving block and the moving strip connected to it will also move accordingly. Furthermore, the moving strip will push the moving plate and the cleaning scraper in contact with it to move together during the movement. The cleaning scraper will slide on the inner wall of the tray during the movement. Through this sliding action, the cleaning scraper can effectively and thoroughly clean the corn kernel residue originally attached to the surface of the tray. This cleaning process not only avoids the possible influence of corn kernel residue on the total weight of corn, but also ensures that the automatic corn sorting and packing mechanism will not make misjudgments due to the presence of residue when packing corn, thereby significantly improving the accuracy and reliability of the automatic corn sorting and packing mechanism when packing corn.

[0029] 2. In this solution, a "baseline value + threshold" weight comparison logic is used to determine the cleaning operation. Specifically, the cleaning scraper will only be activated when there are indeed residual corn kernels on the tray and their weight exceeds the sum of the set base value and the threshold. This design effectively avoids false operations caused by external interference factors such as slight vibrations and dust. It not only greatly saves the energy consumption of the equipment, but also reduces the ineffective wear between the cleaning scraper and the tray, thereby extending the service life of the equipment and improving the overall operating efficiency and stability of the equipment.

[0030] 3. In this solution, the lateral movement of the cleaning scraper from the starting point to the end point can fully cover the entire surface of the pallet. In addition, the resetting action of the cleaning scraper during the return process can ensure that every corner of the pallet can be thoroughly brushed clean of residues. Compared with traditional manual cleaning methods, this automatic cleaning method is more thorough and can effectively avoid the problem of corn kernels on the edges or corners being missed due to negligence during the cleaning process, thereby ensuring that the pallet can maintain a high degree of cleanliness after each use.

[0031] 4. This solution adds a secondary weighing and testing step. Specifically, after cleaning is completed, the pallet is weighed a second time. If the test results show that the preset cleanliness standard is not met, the cleaning program will be restarted and repeated until the standard is met. This "test-clean-retest" closed-loop management mechanism can completely eliminate the contamination of the next batch of corn caused by incomplete cleaning, ensuring that the pallet always maintains a high standard of cleanliness during the recycling process, indirectly guaranteeing the quality of the subsequent boxed corn and improving the hygiene level of the overall production process.

[0032] 5. In this solution, the entire process from triggering judgment to completion of cleaning does not require any human intervention and is fully automated. This design not only significantly reduces the labor cost required for manual cleaning, but also avoids the efficiency fluctuations caused by manual operation, making the pallet turnover process smoother and more efficient. By improving the turnover efficiency of pallets, the continuity and stability of the entire production line are further improved, providing a strong guarantee for the company's production efficiency and product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention with reference to the accompanying drawings.

[0034] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0035] Figure 2 It is a structural schematic diagram of the tray of the present invention;

[0036] Figure 3 It is a structural schematic diagram of the cleaning scraper of the present invention;

[0037] Figure 4 It is a structural schematic diagram of the threaded rod of the present invention;

[0038] Figure 5 Schematic diagram of the system framework of the present invention.

[0039] Legend: 11, device body; 12, tray; 13, base; 14, moving plate; 15, cleaning scraper; 16, fixed plate; 17, threaded rod; 18, moving long strip; 19, moving block; 20, motor. DETAILED DESCRIPTION

[0040] The preferred embodiments of the present application will be described in detail by referring to the attached drawings, however the present application can be realized in various different forms, therefore the present application is not limited to the embodiments described below, in addition, in order to more clearly describe the present application, components not connected with the invention will be omitted from the attached drawings;

[0041] The technical solutions in the embodiments of the present application are to solve the problems in the above background art, and the general idea is as follows:

[0042] Embodiment:

[0043] Please refer to Figure 1 and Figure 5As shown, this embodiment introduces an automatic corn sorting and packing mechanism, including an upper computer and a lower computer. The lower computer includes a device body 11. A group of trays 12 are provided at the upper end of the device body 11. The lower end of each tray 12 is fixedly connected to a base 13. A movable plate 14 is provided inside each tray 12. The lower end of each movable plate 14 is fixedly connected to a cleaning scraper 15. A weighing sensor is provided inside the base 13. The rear end of each movable plate 14 is fixedly connected to a movable strip 18. The lower end is provided with a long slot, and the lower end of each tray 12 is provided with a moving block 19. Each moving strip 18 passes through the long slot and is fixedly connected to the corresponding moving block 19. Both ends of each moving block 19 are rotatably connected to a fixed plate 16. The upper end of each fixed plate 16 is fixedly connected to the corresponding tray 12. The right surface of each fixed plate 16 at the right end is fixedly connected to a motor 20. The output port of each motor 20 passes through the corresponding fixed plate 16 and is fixedly connected to the threaded rod 17. The upper computer includes a weight sensor cleaning System, the weight sensing cleaning system includes an early calibration module, a real-time detection and judgment module, a motor drive and cleaning module and an end judgment module. First, the motor 20 is started. After starting, the motor 20 will drive the threaded rod 17 connected to it to rotate. As the threaded rod 17 rotates, the moving block 19 and the moving strip 18 connected thereto will also move accordingly. Furthermore, the moving strip 18 will push the moving plate 14 and the cleaning scraper 15 in contact with it to move together during the movement. The cleaning scraper 15 will slide on the inner wall of the tray 12 during the movement. Through this sliding action, the cleaning scraper 15 can effectively clean the corn kernel residue originally attached to the surface of the tray 12. This cleaning process not only avoids the possible influence of corn particle residue on the total weight of corn, but also ensures that the automatic corn sorting and packing mechanism will not make misjudgments due to the presence of residue when packing corn, thereby significantly improving the accuracy and reliability of the automatic corn sorting and packing mechanism when packing corn.

[0044] The load cell outputs an analog voltage signal that is proportional to the weight, and the "weight-voltage" correspondence of the sensor is calibrated;

[0045] Calibration parameter definition:

[0046] G: actual total weight of the tray + corn kernels;

[0047] U: analog voltage output by the sensor;

[0048] k: sensor sensitivity coefficient;

[0049] b: Sensor zero offset.

[0050] Empty calibration: When the tray 12 is empty, record the weight of the tray 12 as G0, and the sensor output voltage as U0 at this time;

[0051] Load calibration: Put corn kernels of known weight into the tray 12, at this time the total weight G = G0+G1, record the sensor output voltage U1.

[0052] Calibration formula:

[0053] The linear relationship of the sensor is: U = k·G + b;

[0054] Bring in the calibration data twice:

[0055] The sensor sensitivity coefficient is:

[0056] The sensor zero point offset is: b = U0 - k·G0, the weight comparison logic of "reference value + threshold value" is used to judge the cleaning operation, specifically, only when there are indeed residual corn kernels on the tray 12 and their weight exceeds the sum of the set reference value and threshold value, the cleaning scraper 15 will be started to clean. This design effectively avoids false actions caused by external interference factors such as slight vibration and dust, not only greatly saves the energy consumption of the equipment, but also reduces the invalid wear between the cleaning scraper 15 and the tray 12, thereby prolonging the service life of the equipment and improving the overall equipment operation efficiency and stability.

[0057] The controller reads the real-time output voltage of the sensor through the A / D converter: U 实时 , and calculates the actual total weight: G 实时 :

[0058] A weight threshold G th must be set, when G 实时 > G th , it is determined that the tray has corn kernels that need to be cleaned, and the horizontal movement of the cleaning scraper 15 from the starting point to the end point can fully cover the entire surface of the tray 12. In addition, combined with the reset action of the cleaning scraper 15 during the return process, it can ensure that every corner of the tray 12 can be thoroughly brushed to remove residues. Compared with the traditional manual cleaning method, this automatic cleaning method is more thorough and can effectively avoid the problem of missing corn kernels in the corners or edges during the cleaning process due to negligence, thereby ensuring that the tray 12 can maintain a high level of cleanliness after each use.

[0059] When the "corn kernel" determination condition is met, the controller triggers the motor 20 to start and drive the cleaning scraper 15 to move horizontally for cleaning; after cleaning is completed, the motor 20 stops;

[0060] The controller outputs a high level to the motor 20 driver. The condition for starting the motor 20 is: the motor 20 starts <=> and the judgment result of the formula is satisfied. A secondary weighing detection link is added. The specific operation is to perform a secondary weighing detection on the tray 12 after the cleaning is completed. If the detection result shows that the preset cleaning standard is not met, the cleaning program will be started again to repeat the cleaning until the standard is met. This "detection-cleaning-re-detection" closed-loop management mechanism can completely eliminate the contamination problem of the next batch of corn caused by incomplete cleaning, ensure that the tray 12 always maintains a high standard of cleanliness during the recycling process, indirectly guarantee the quality of the subsequent boxed corn, and improve the hygiene level of the overall production process.

[0061] Ensure that it is clean, and after the cleaning scraper 15 returns to the starting point, check the weight again:

[0062] When G 实时 ≤G th When , it is determined that "cleaning is completed" and the motor 20 remains stopped;

[0063] When G 实时 >G th When the cleaning process is repeated, the entire process from triggering judgment to cleaning completion does not require any human intervention, and fully realizes automatic operation. This design not only greatly reduces the labor cost required for manual cleaning, but also avoids the efficiency fluctuation problem caused by manual operation, making the turnover process of pallet 12 smoother and more efficient. By improving the turnover efficiency of pallet 12, the continuity and stability of the entire production line are further improved, providing a strong guarantee for the company's production efficiency and product quality.

[0064] A method for using an automatic corn sorting and packing mechanism comprises the following steps:

[0065] S1: The weighing sensor under the tray 12 detects the total weight. The device compares the detected weight with the previously set "baseline value + threshold value". If the weight exceeds the threshold value, it means that there are corn kernels remaining. The system automatically starts the motor 20 to move the cleaning scraper 15 on the tray 12 for cleaning. If the weight does not exceed the threshold value, the device remains in standby mode.

[0066] S2: The motor 20 drives the cleaning scraper 15 to move horizontally from the starting point to the end point, brushing off the corn kernels on the tray 12 during the process. After reaching the end point, the motor 20 reverses and the cleaning scraper 15 automatically returns to the starting point;

[0067] S3: After cleaning, the sensor detects the weight again. If it is lower than the threshold, the device will be on standby. If there is still residue, the cleaning process will be repeated until the standard is met.

[0068] Working principle:

[0069] The first step is to start the motor 20. After starting, the motor 20 will drive the threaded rod 17 connected thereto to rotate. As the threaded rod 17 rotates, the moving block 19 and the moving strip 18 connected thereto will also move accordingly. Furthermore, the moving strip 18 will push the moving plate 14 and the cleaning scraper 15 in contact therewith to move together during the movement. The cleaning scraper 15 will slide on the inner wall of the tray 12 during the movement. Through this sliding action, the cleaning scraper 15 can effectively and thoroughly clean the corn kernel residue originally attached to the surface of the tray 12. This cleaning process not only avoids the possible influence of the corn particle residue on the total weight of the corn, but also ensures that the automatic corn sorting and packing mechanism will not make misjudgments due to the presence of residues when packing the corn, thereby significantly improving the accuracy and reliability of the automatic corn sorting and packing mechanism when packing the corn.

[0070] In the second step, the weighing sensor under the tray 12 will detect the total weight, and the equipment will compare the detected weight with the "reference value + threshold value" set in advance. If the weight exceeds the threshold value, it means that there are residual corn kernels. The system automatically starts the motor 20 to move the cleaning scraper 15 on the tray 12 for cleaning. If the weight does not exceed the threshold value, the equipment remains in standby mode. The "reference value + threshold value" weight comparison logic is used to judge the cleaning operation. Specifically, only when there are residual corn kernels on the tray 12 and their weight exceeds the sum of the set reference value and the threshold value, the cleaning scraper 15 will be started for cleaning. This design effectively avoids malfunctions caused by external interference factors such as slight vibrations and dust, which not only greatly saves the energy consumption of the equipment, but also reduces the ineffective wear between the cleaning scraper 15 and the tray 12, thereby extending the service life of the equipment and improving the overall operating efficiency and stability of the equipment.

[0071] In the third step, the motor 20 drives the cleaning scraper 15 to move horizontally from the starting point to the end point, brushing off the corn kernels on the tray 12 during the process. After reaching the end point, the motor 20 reverses and the cleaning scraper 15 automatically returns to the starting point. The horizontal movement design of the cleaning scraper 15 from the starting point to the end point can fully cover the entire surface of the tray 12. In addition, combined with the resetting action of the cleaning scraper 15 during the return process, it can ensure that every corner of the tray 12 can be thoroughly brushed off the residue. Compared with the traditional manual cleaning method, this automatic cleaning method is more thorough and can effectively avoid the problem of manual omission of corn kernels on the edges or corners due to negligence during the cleaning process, thereby ensuring that the tray 12 can maintain a high degree of cleanliness after each use.

[0072] In the fourth step, after cleaning, the sensor detects the weight again. If it is lower than the threshold, the equipment will be on standby. If there is still residue, the cleaning process will be repeated until the standard is met. A second weighing and detection link has been added. The specific operation is to perform a second weighing test on the pallet 12 after cleaning. If the test result shows that the preset cleaning standard is not met, the cleaning program will be started again to repeat the cleaning until the standard is met. This "detection-cleaning-re-detection" closed-loop management mechanism can completely eliminate the contamination problem of the next batch of corn caused by incomplete cleaning, ensure that the pallet 12 always maintains a high standard of cleanliness during the recycling process, indirectly guarantee the quality of the subsequent boxed corn, and improve the hygiene level of the overall production process.

[0073] Finally, it should be noted that the above embodiments are merely examples for the purpose of illustrating the present invention and are not intended to limit the embodiments. Those skilled in the art will readily appreciate that other variations or modifications based on the above description are possible. It is not necessary and impossible to provide an exhaustive list of all embodiments. However, obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. An automatic corn sorting and packing mechanism, characterized in that: Including upper computer and lower computer; The lower machine comprises a device body (11), a group of trays (12) are provided at the upper end of the device body (11), the lower end of each tray (12) is fixedly connected to a base (13), a movable plate (14) is provided inside each tray (12), the lower end of each movable plate (14) is fixedly connected to a cleaning scraper (15), and a weighing sensor is provided inside the base (13); wherein the rear end of each movable plate (14) is fixedly connected to a movable strip (18), a long slot is provided at the lower end of each tray (12), a movable block (19) is provided at the lower end of each tray (12), each movable strip (18) passes through the long slot and is fixedly connected to the corresponding movable block (19), both ends of each movable block (19) are rotatably connected to a fixed plate (16), the upper end of each fixed plate (16) is fixedly connected to the corresponding tray (12), the right surface of each fixed plate (16) at the right end is fixedly connected to a motor (20), and the output port of each motor (20) passes through the corresponding fixed plate (16) and is fixedly connected to the threaded rod (17); The host computer includes a weight sensing cleaning system, which includes an early calibration module, a real-time detection and judgment module, a motor drive and cleaning module, and an end judgment module.

2. The automatic corn sorting and packing mechanism according to claim 1, characterized in that: The load cell outputs an analog voltage signal that is proportional to the weight, and the "weight-voltage" correspondence of the sensor is calibrated; Calibration parameter definition: G: actual total weight of the tray + corn kernels; U: analog voltage output by the sensor; k: sensor sensitivity coefficient; b: Sensor zero offset. Empty calibration: When the tray (12) is empty, the weight of the tray (12) is recorded as G0, and the sensor output voltage is U0; Loading calibration: Place corn kernels of known weight into the tray (12), where the total weight G = G0 + G1, and record the sensor output voltage U1.

3. The automatic corn sorting and packing mechanism according to claim 2, characterized in that: Calibration formula: The linear relationship of the sensor is: U = k·G + b; Bring in two calibration data: The sensor sensitivity coefficient is: The zero point offset of the sensor is: b = U0-k·G0.

4. The automatic corn sorting and packing mechanism according to claim 1, characterized in that: The controller reads the real-time output voltage of the sensor through the A / D converter: U 实时 , substitute the formula to calculate the actual total weight: G 实时 : A weight threshold needs to be set: G th , when G 实时 >G th When the tray is checked, it is determined that there are corn kernels that need to be cleaned.

5. The automatic corn sorting and packing mechanism according to claim 1, characterized in that: When the determination condition of "there are corn kernels" is met, the controller triggers the motor (20) to start, driving the cleaning scraper (15) to move horizontally for cleaning; after the cleaning is completed, the motor (20) stops; The controller outputs a high level to the motor (20) driver, and the condition for starting the motor (20) is: the motor (20) starts <=> satisfies the judgment result of the formula.

6. The automatic corn sorting and packing mechanism according to claim 1, characterized in that: Make sure it is clean, and after the cleaning scraper (15) returns to the starting point, check the weight again: When G 实时 ≤G th When the cleaning is completed, the motor (20) is stopped. When G 实时 >G th Repeat the cleaning process.

7. A method for using an automatic corn sorting and packing mechanism applied to the device according to any one of claims 1 to 6, characterized in that: The following steps are involved: S1: The weighing sensor under the tray (12) detects the total weight. The device compares the detected weight with the previously set "reference value + threshold value". If the weight exceeds the threshold value, it means that there are corn kernels left. The system automatically starts the motor (20) to move the cleaning scraper (15) on the tray (12) for cleaning. If the weight does not exceed the threshold value, the device remains in standby mode. S2: The motor (20) drives the cleaning scraper (15) to move horizontally from the starting point to the end point, brushing off the corn kernels on the tray (12) during the process. After reaching the end point, the motor (20) reverses and the cleaning scraper (15) automatically returns to the starting point; S3: After cleaning, the sensor detects the weight again. If it is lower than the threshold, the device will be on standby. If there is still residue, the cleaning process will be repeated until the standard is met.

Images