Intelligent lossless cleaning and grading equipment for vigna unguiculata

Abstract

The invention is suitable for the technical field of green bean processing, and provides a green bean lossless cleaning and grading intelligent device which comprises a feeding channel box, a cleaning and grading assembly is installed in the feeding channel box and comprises two peristaltic screening parts, a feeding channel is formed between the two peristaltic screening parts, and a discharging channel is formed between the two peristaltic screening parts. The peristaltic screening piece comprises a peristaltic screening plate; the wriggling screening plate is used for separating the vigna unguiculata one by one at the top of the feeding channel through wriggling, after the vigna unguiculata enters the feeding channel, a cleaning agent is introduced into the feeding channel through the cleaning box, the vigna unguiculata is gently and losslessly cleaned, and the vigna unguiculata with different lengths are classified by detecting whether pressure exists or not; the complex and soft touch action imitating hand cleaning is achieved, and efficient pesticide removal, lossless cleaning and intelligent lossless cleaning and grading are achieved; the situation that epidermis cells of vigna unguiculata which is delicate in surface and prone to being scratched are damaged or pod stems at the two ends are broken under physical impact in a rigid scouring mode is avoided, and the situation that an entrance is created for microbial infection is avoided.

Description

Technical Field

[0001] This invention relates to the field of green bean processing technology, and in particular to an intelligent device for non-destructive cleaning and grading of green beans. Background Technology

[0002] Traditional green bean processing typically relies on manual washing and sorting, which is inefficient, costly, and prone to mechanical damage due to improper handling, accelerating spoilage. Non-destructive washing thoroughly removes surface dirt and pesticide residues while preserving the integrity of the bean's skin and waxy layer to the greatest extent possible, avoiding micro-damage invisible to the naked eye and thus extending shelf life. Non-destructive grading, on the other hand, allows for refined classification based on external qualities such as length, diameter, color, curvature, and surface blemishes, and even internal indicators such as maturity and tenderness, achieving premium pricing for high-quality beans and meeting diverse market demands. This is a key link in driving industry upgrading.

[0003] Currently, mainstream cleaning technologies primarily employ physical methods such as high-pressure spraying, bubble agitation, or ultrasonic cleaning. Their core logic is to remove contaminants through the impact of water flow or cavitation. For grading, existing technologies mainly rely on machine vision and automated control. This involves using industrial cameras to capture images of green beans, analyzing their size, color, and surface characteristics using algorithms, and then a PLC control system driving robotic arms, airflow nozzles, or tilting levers to sort the beans of different grades into corresponding channels.

[0004] However, existing non-destructive cleaning and grading equipment for green beans still has significant limitations in terms of technological integration and refined processing. In the washing stage, existing equipment generally adopts a rinsing mode, which concentrates the force on the macroscopic impact of the water flow. Although it can remove large pieces of mud and sand, it is difficult to imitate the complex and gentle tactile actions of "rubbing," "twisting," and "stroking" by hand. This rigid rinsing mode is very likely to cause damage to the epidermal cells or breakage of the pod stems at both ends of green beans under physical impact, creating an entry point for microbial infection. Summary of the Invention

[0005] (a) Technical problems to be solved The purpose of this invention is to provide a non-destructive cleaning and grading intelligent device for green beans, which aims to solve the problem that existing devices generally adopt a rinsing mode, whose force is concentrated on the macroscopic impact of water flow. Although it can remove large pieces of mud and sand, it is difficult to imitate the complex and gentle tactile actions of human hand washing, such as "rubbing", "twisting" and "stroking".

[0006] (II) Technical Solution Specifically: A non-destructive cleaning and grading intelligent device for green beans, comprising: A conveyor box containing multiple conveyor belts is used to transport green beans of different lengths after cleaning and grading. A cleaning box is assembled on the conveyor channel box; the cleaning box is used to clean green beans conveyed by multiple conveyor belts; A feeding channel box is assembled at the end of a conveyor channel box and connected to the conveyor channel box; the feeding channel box is used to supply green beans to the conveyor channel box. The feeding channel box is equipped with a cleaning and grading assembly, which includes two symmetrically distributed peristaltic screening components. A feeding channel is formed between the two peristaltic screening components, and the peristaltic screening components include peristaltic screening plates. The peristaltic screening plate separates the green beans one by one at the top of the feeding channel through peristalsis. After the green beans enter the feeding channel, the cleaning box introduces cleaning agent into the feeding channel to gently and non-damagingly clean the green beans. The system also detects the presence of pressure to grade the green beans into different lengths.

[0007] The technical solution of this application will be further described below: In one embodiment, the peristaltic screening plate includes: Multiple airbag strips achieve peristalsis through sequential periodic inflation and deflation; A support plate is mounted on multiple unit airbag strips to keep the unit airbag strips fixed and stable; the multiple unit airbag strips are distributed along the support plate in an array.

[0008] Furthermore, the unit airbag strip includes: A horizontal board, horizontally mounted on a support plate; An airbag strip is laid on the horizontal plate and directly connected and fixed to the horizontal plate; the outer side of the airbag strip is arc-shaped. Air guide channels are formed on the horizontal plate; Multiple unit air inlets are provided on the air guide groove and distributed along the air guide groove array; the unit air inlets are used to connect the air guide groove and the airbag strip.

[0009] The airbag strip is divided into multiple independent unit airbags, and the multiple unit airbags correspond one-to-one with multiple unit air inlets; pressure sensors are installed on the surface of the unit airbags; and textures are formed on the outer surface of the airbag strip.

[0010] In one embodiment, the peristaltic screening component further includes: Gas mixing box, mounted on a peristaltic sieve plate; Two side sealing plates are distributed on both sides of the peristaltic screening plate.

[0011] Furthermore, the gas mixing box includes: Gas preparation chamber; A gas guiding chamber is formed on the gas mixing box; Multiple mounting slots are provided on the gas distribution box outside the gas guide cavity; Multiple air intake channels correspond one-to-one with multiple mounting slots; the air intake channels are located inside the mounting slots and connect the mounting slots and the air guide chamber. Multiple unit airbag strips correspond one-to-one with multiple mounting slots; the unit airbag strips are installed inside the mounting slots; the air guide chamber is connected to the unit airbag strips.

[0012] The air guide chamber is divided into an inflation chamber and an air extraction chamber; the air intake channel is divided into an air inlet and an air outlet by a partition, and both the air inlet and the air outlet are equipped with solenoid valves; the air inlet is connected to the inflation chamber, and the air outlet is connected to the air extraction chamber.

[0013] The gas mixing box has a gas guide box installed on its back, and a gas guide pipe is installed on the gas guide box. An inlet pipe and an outlet pipe are installed inside the gas guide pipe. The inlet pipe passes through the gas guide box and enters the inflation chamber and communicates with the inflation chamber. The outlet pipe passes through the gas guide box and enters the suction chamber and communicates with the suction chamber. A blower is connected to the inlet pipe, and a suction fan is connected to the outlet pipe.

[0014] In one embodiment, the cleaning box is mounted on a support platform, the support platform is mounted on the side wall of the storage box, the storage box is equipped with an operation panel, the storage box is equipped with multiple cabinet doors, and the conveyor channel box is mounted on the storage box. A cleaning agent tank is installed on the top of the cleaning tank, and a feeding hopper is installed on the top of the feeding channel box.

[0015] In one embodiment, the cleaning agent comprises a targeted enzyme preparation, a natural inclusion agent, and a biocompatible medium; the targeted enzyme preparation is compounded with organophosphorus degrading enzymes, laccase, and peroxidase; the natural inclusion agent includes cyclodextrin; and the biocompatible medium uses a solution of food-grade glycerol and water as a base to provide a stable active environment for the enzyme.

[0016] (III) Beneficial Effects Compared with existing technologies, the intelligent equipment for non-destructive cleaning and grading of green beans of the present invention has the following advantages: 1. After initial washing, the green beans are placed horizontally into the feeding channel box. The green beans will accumulate horizontally at the top of the feeding channel, while peristaltic screening components are distributed on both sides of the feeding channel. The peristaltic screening components separate the green beans one by one at the top of the feeding channel by the peristaltic screening plate and push them into the feeding channel. After the green beans enter the feeding channel, the washing box introduces detergent into the feeding channel to gently and non-destructively wash the green beans. By detecting the pressure, the green beans of different lengths are graded and placed into multiple conveyor belts. After being transported to the washing box by multiple conveyor belts, they undergo a second washing. The peristaltic movement of the peristaltic screening plate achieves a complex and gentle tactile action that mimics the complex hand washing action, efficiently performing pesticide-free and non-destructive washing and intelligent non-destructive cleaning and grading. This avoids the situation where the rigid flushing mode causes damage to the epidermal cells or breakage of the pod stems at both ends of the delicate green beans under physical impact, creating an entry point for microbial infection. 2. In traditional sorting equipment, detection methods such as visual imaging and execution methods such as robotic arm sorting are separate processes, resulting in positioning errors and delays. In this invention, the airbag strip, which serves as the actuator, is itself a distributed measurement network. The airbag strip completes in-situ acquisition of length data the instant it squeezes the green beans, ensuring complete synchronization between the data and the physical position, thus eliminating information transmission errors. The dynamic change curve of the pressure data can reflect the hardness and elasticity of the green beans, providing a potential data channel for future extended quality grading, such as judging the degree of aging, which is difficult to achieve with static visual inspection. 3. Traditional rigid sorting uses a preset and fixed force; in this invention, the controller can dynamically adjust the inflation pressure and time for the next or subsequent batch of green beans based on real-time feedback from the pressure sensor. For example, if the pressure feedback from a tender green bean is detected to be too weak, the peak inflation pressure of the subsequent squeezing action can be automatically reduced to achieve truly personalized adaptive processing. This closed loop, which uses "execution feedback" for control optimization in real time, transforms lossless operation from a design goal into a dynamic process that can be guaranteed in real time. 4. This invention integrates four functions that traditionally require separate modules—dispersion, cleaning, conveying, and size detection—into a single airbag peristaltic process. This high degree of integration not only saves space and cost but also greatly reduces the number of times green beans are gripped, dropped, or collided inside the equipment. The green beans are conveyed from a piled-up state to being graded and delivered almost entirely in a continuous, gentle wave motion, minimizing the risk of cumulative damage at the system level. This level of systemic reliability cannot be achieved by optimizing a single component. 5. The textures on the outer surface of the airbag strips are intended to increase friction. However, during the periodic squeezing and relaxing peristalsis, these textures actually create and change tiny gaps and channels between the bean surface and the airbags. This dynamic change can effectively break the residue layer of the cleaning agent on the bean surface, generate local eddies and enhance the diffusion effect, thereby improving the mixing and exchange efficiency of the chemical cleaning agent in addition to the mechanical rubbing force, achieving an unexpected synergistic enhancement of the effects of physical rubbing and chemical cleaning. 6. Cyclodextrin first binds to pesticide molecules in the folds of the green beans, extracting them from the surface and enriching them in the cleaning solution. The targeted enzyme then acts on the encapsulated pesticide molecules, catalyzing their decomposition into small-molecule acids, alcohols, and other non-toxic substances. The continuous peristalsis of the air bladder strips constantly renews the liquid film on the surface of the green beans, ensuring a continuous and efficient cycle of encapsulation and degradation until the pesticide residues are completely removed. All ingredients in the cleaner are naturally derived or biosynthesized, non-toxic, non-irritating, and completely biodegradable, with zero environmental impact. After cleaning, the pesticides have been decomposed into harmless substances, eliminating the need to treat toxic wastewater, aligning with the concept of circular agriculture. Unlike alkaline cleaners that may damage the waxy layer of the green beans, this cleaner maximizes the preservation of the original flavor and storability. The cleaner is a low-foaming, highly lubricating liquid that does not affect the peristalsis and pressure sensing function of the air bladders. The gentle rubbing of the air bladder strips prolongs the contact reaction time between the enzymes and pesticide residues, improving catalytic efficiency at low temperatures. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the intelligent equipment for non-destructive cleaning and grading of green beans according to the present invention; Figure 2 This is a schematic diagram of the cleaning and grading assembly in this invention; Figure 3 for Figure 2 Schematic diagram of the structure of the peristaltic screening component; Figure 4 for Figure 3 Schematic diagram of the structure of the peristaltic screening plate; Figure 5 for Figure 4 Schematic diagram of the structure of the middle unit airbag strip; Figure 6 for Figure 5 A schematic diagram of the structure of the middle unit airbag strip after it has been flipped over; Figure 7 for Figure 3Schematic diagram of the structure of the gas mixing box; Figure 8 for Figure 7 Cross-sectional view of the gas mixing chamber; Figure 9 This is a demonstration diagram of the intelligent cleaning and grading of the peristaltic screening plate in this invention.

[0019] In the attached diagram: 1-Feeding channel box, 2-Feeding hopper, 3-Cleaning agent tank, 4-Conveyor channel box, 5-Storage box, 6-Operating panel, 7-Cabinet door, 8-Cleaning box, 9-Support platform, 10-Cleaning and grading assembly, 11-Peristaltic screening component, 12-Feeding channel, 13-Air guide box, 14-Air guide pipe, 15-Green beans; 111-Peristaltic sieve plate, 112-Gas mixing box, 113-Side sealing plate, 1111-Support plate, 1112-Unit airbag strip, 1113-Horizontal plate, 1114-Airbag strip, 1115-Gas guide groove, 1116-Unit air inlet, 1121-Gas mixing box body, 1122-Mounting groove, 1123-Air inlet channel, 1124-Gas guide chamber. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. The specific implementation of the invention will be described in detail below with reference to specific embodiments.

[0021] In one embodiment of the present invention, please refer to Figure 1 A non-destructive cleaning and grading intelligent device for green beans, comprising: The conveyor box 4, which includes multiple conveyor belts, is used to transport green beans of different lengths after cleaning and grading. A cleaning box 8 is assembled on the conveyor channel box 4; the cleaning box 8 is used to clean green beans conveyed by multiple conveyor belts. The feeding channel box 1 is assembled at the end of the conveying channel box 4 and is connected to the conveying channel box 4; the feeding channel box 1 is used to provide green beans to the conveying channel box 4. Therefore, after the green beans are placed horizontally into the feeding channel box 1, they are intelligently and non-destructively cleaned and graded by the feeding channel box 1, and then sorted and placed onto multiple conveyor belts. They are then transported to the washing box 8 by multiple conveyor belts for secondary cleaning. Finally, the green beans that have been non-destructively cleaned and graded are transported away by multiple conveyor belts inside the conveying channel box 4. Please continue reading Figures 1-3The feeding channel box 1 is equipped with a cleaning and grading assembly 10. The cleaning and grading assembly 10 includes two symmetrically distributed peristaltic screening components 11. A feeding channel 12 is formed between the two peristaltic screening components 11. The peristaltic screening component 11 includes a peristaltic screening plate 111. The peristaltic screening plate 111 separates the green beans one by one at the top of the feeding channel 12 by peristalsis. After the green beans enter the feeding channel 12, the cleaning box 8 introduces cleaning agent into the feeding channel 12 to gently and non-damage clean the green beans, and the green beans of different lengths are graded by detecting whether there is pressure.

[0022] Therefore, after initial cleaning, the green beans are placed horizontally into the feeding channel box 1. The green beans will accumulate horizontally at the top of the feeding channel 12. Peristaltic screening components 11 are distributed on both sides of the feeding channel 12. The peristaltic screening components 11 separate the green beans one by one at the top of the feeding channel 12 via peristaltic screening plates 111, and push them into the feeding channel 12. After the green beans enter the feeding channel 12, cleaning agent is introduced into the feeding channel 12 through the cleaning box 8 to gently and non-damagingly clean the green beans, and the presence of any defects is detected. Pressure is used to grade green beans of different lengths, which are then placed onto multiple conveyor belts and transported to the washing tank 8 for secondary cleaning. The peristaltic sieving plate 111 achieves a complex yet gentle tactile motion that mimics hand washing, efficiently performing pesticide-free cleaning and intelligent non-destructive grading. This avoids the situation where rigid flushing mode causes damage to the epidermal cells or breakage of the pod stems at both ends of the delicate green beans due to physical impact, creating an entry point for microbial infection.

[0023] It should be noted that this application mainly targets the cleaning of pesticide residues, and the green beans placed horizontally into the feeding channel box 1 have undergone preliminary cleaning to remove mud and sand.

[0024] In another embodiment of the present invention, considering that the mechanical actions used in the grading process are often simple and crude, and can easily cause secondary damage to the cleaned green beans during the sorting process, such as bruising or skin abrasion, the following technical solution is proposed: Please see Figure 4 The peristaltic screening plate 111 includes: Multiple unit airbag strips 1112 achieve peristalsis through sequential periodic inflation and deflation; A support plate 1111 is mounted on multiple unit airbag strips 1112 to keep the unit airbag strips 1112 fixed and stable; the multiple unit airbag strips 1112 are distributed in an array along the support plate 1111.

[0025] For further details, please see Figure 4 and Figure 5 The unit airbag strip 1112 includes: The horizontal plate 1113 is horizontally mounted on the support plate 1111; The airbag strip 1114 is laid on the horizontal plate 1113 and directly connected and fixed to the horizontal plate 1113; the outer side of the airbag strip 1114 is arc-shaped. Air guide groove 1115 is formed on horizontal plate 1113; Multiple unit air inlets 1116 are provided on the air guide groove 1115 and are distributed in an array along the air guide groove 1115; the unit air inlets 1116 are used to connect the air guide groove 1115 and the airbag strip 1114.

[0026] Please see Figure 5 The airbag strip 1114 is divided into multiple independent unit airbags, and the multiple unit airbags correspond one-to-one with the multiple unit air inlets 1116; pressure sensors are installed on the surface of the unit airbags; and textures are formed on the outer surface of the airbag strip 1114.

[0027] Therefore, the pre-washed green beans are piled horizontally at the top of the feeding channel 12. Peristaltic screening components 11 are distributed on both sides of the feeding channel 12. The peristaltic screening components 11 activate the peristaltic screening plate 111, which periodically inflates and deflates multiple unit airbag strips 1112 to achieve peristalsis. After the first unit airbag strip 1112 deflates and contracts, the feeding channel 12 expands. As a green bean is about to pass through, the unit airbag strip 1112 is inflated again, shortening the width of the feeding channel 12, squeezing out the green bean and pushing out the next one. This completes the peristaltic cleaning process and separates the green beans (this process can be detailed in [link to documentation]). Figure 9 The green bean then passes through the remaining multiple unit airbag strips 1112 in sequence, completing the gentle and non-destructive cleaning with the help of the cleaning agent; after the first unit airbag strip 1112 deflates and contracts again, the second green bean enters, and so on, to complete the intelligent and non-destructive cleaning and dispersion of the accumulated green beans in sequence. Because the airbag strip 1114 is divided into multiple independent airbag units, and each airbag unit is equipped with a pressure sensor, the length of the green beans can be determined by counting the number of pressure sensors with pressure values ​​during the squeezing and kneading process. This enables the intelligent detection of pressure to grade green beans of different lengths and place them onto multiple conveyor belts. This avoids the fact that the mechanical actions in the traditional sorting process are often simple and crude, and can easily cause secondary damage to the cleaned green beans during the sorting process, such as bruises or skin abrasion. In addition, the outer surface of the airbag strip 1114 has a texture, which allows the cleaning agent to come into better contact with the green beans during the peristalsis process.

[0028] In another embodiment of the present invention, please refer to Figure 3 The peristaltic screening component 11 further includes: Gas mixing box 112 is mounted on peristaltic sieve plate 111; Two side sealing plates 113 are distributed on both sides of the peristaltic screening plate 111.

[0029] For further details, please see Figures 6-8 The gas mixing box 112 includes: Gas blending box 1121; The gas guiding chamber 1124 is formed on the gas mixing box 1121; Multiple mounting slots 1122 are provided on the gas distribution box 1121 outside the gas guide cavity 1124; Multiple air intake channels 1123 correspond one-to-one with multiple mounting slots 1122; the air intake channels 1123 are opened inside the mounting slots 1122, and the air intake channels 1123 are used to connect the mounting slots 1122 and the air guide chambers 1124.

[0030] It should also be noted that: the multiple unit airbag strips 1112 correspond one-to-one with the multiple mounting slots 1122; the unit airbag strips 1112 are installed inside the mounting slots 1122; the air guide cavity 1124 is connected to the unit airbag strips 1112.

[0031] Please see Figure 8 The air guide cavity 1124 is divided into an inflation cavity and an air extraction cavity; the air inlet channel 1123 is divided into an air inlet and an air outlet by a partition, and both the air inlet and the air outlet are equipped with solenoid valves; the air inlet is connected to the inflation cavity, and the air outlet is connected to the air extraction cavity.

[0032] Therefore, the peristaltic screening component 11 starts the peristaltic screening plate 111 through the gas distribution box 112. During this process, the solenoid valve in the air inlet is opened and the solenoid valve in the air outlet is closed. The gas inside the inflation chamber enters the unit airbag strip 1112 through the air inlet. The solenoid valve in the air inlet is closed and the solenoid valve in the air outlet is opened. The gas inside the unit airbag strip 1112 is discharged into the suction chamber through the air outlet, thus completing the periodic inflation and deflation of multiple unit airbag strips 1112 to achieve peristalsis.

[0033] Please see Figure 2 and Figure 7 The gas mixing box 112 has a gas guide box 13 installed on its back. A gas guide pipe 14 is installed on the gas guide box 13. An inlet pipe and an outlet pipe are installed inside the gas guide pipe 14. The inlet pipe passes through the gas guide box 13 and enters the inflation chamber and communicates with the inflation chamber. The outlet pipe passes through the gas guide box 13 and enters the suction chamber and communicates with the suction chamber. A blower is connected to the inlet pipe and a suction fan is connected to the outlet pipe.

[0034] Therefore, the pre-cleaned green beans are piled horizontally on top of the feeding channel 12. A blower is used to ensure stable air pressure inside the inflation chamber, and an exhaust fan is used to ensure stable air pressure inside the exhaust chamber. The solenoid valve in the air inlet is opened, and the solenoid valve in the air outlet is closed. The gas inside the inflation chamber enters the unit airbag strip 1112 through the air inlet. The solenoid valve in the air inlet is closed, and the solenoid valve in the air outlet is opened. The gas inside the unit airbag strip 1112 is discharged into the exhaust chamber through the air outlet. This completes the periodic inflation and deflation of multiple unit airbag strips 1112 to achieve peristalsis.

[0035] In summary: After initial cleaning, the green beans are piled horizontally at the top of the feeding channel 12. With the combined action of the blower and exhaust fan, the inflation chamber and exhaust chamber maintain stable positive and negative pressure environments, respectively. The solenoid valves controlling each air inlet and outlet periodically inflate and de-inflate the multiple independent unit airbags 1112 formed on the airbag strip 1114 at specific intervals. This inflation and deflation cycle generates peristaltic waves similar to those in a biological intestine along the entire peristaltic screening plate 111. Specifically, when the first unit airbag 1112 deflates and contracts, the feeding channel 12 temporarily expands at that point, allowing a green bean to expand under gravity and slight pressure from subsequent green beans. The beans enter under thrust; then the unit airbag 1112 inflates and expands, restoring the channel width. On the one hand, it gently pushes the beans that have entered to the next unit, and on the other hand, it blocks the subsequent beans, thus achieving the orderly separation and transport of the beans one by one. As the beans pass through all the subsequent unit airbags 1112 in sequence, they are continuously subjected to this periodic, wave-like squeezing and rubbing. The textured structure on the outer surface of the airbag strip 1114 significantly increases the contact area and friction with the bean skin during this process, allowing the cleaning agent to penetrate and remove stains more fully, achieving a highly realistic hand-washing feel.

[0036] Each individual airbag unit integrates a pressure sensor on its surface. When the green beans are wrapped and squeezed by the airbags, the sensors of the airbag units that come into contact with them along the way will generate pressure signals. By statistically analyzing the number of sensors with effective pressure values ​​and their spatial distribution in real time, it is possible not only to accurately determine the length of a single green bean, but also to help infer its approximate posture. When the green beans are transported to the end, they can be intelligently guided to a conveyor belt of the corresponding specification to complete non-destructive, online real-time grading.

[0037] Furthermore, in traditional sorting equipment, detection such as visual imaging and execution such as robotic arm sorting are separate processes, resulting in positioning errors and delays. In this invention, the airbag strip 1114, which serves as the actuator, is itself a distributed measurement network. The airbag strip 1114 completes in-situ acquisition of length data the instant it squeezes the green beans, ensuring complete synchronization between the data and the physical position, thus eliminating information transmission errors. The dynamic change curve of the pressure data can reflect the hardness and elasticity of the green beans, providing a potential data channel for future extended quality grading, such as judging the degree of aging, which is difficult to achieve with static visual inspection.

[0038] Traditional rigid sorting uses a preset and fixed force; in this invention, the controller can dynamically adjust the inflation pressure and time for the next or subsequent green beans in the same batch based on real-time feedback from the pressure sensor. For example, if the pressure feedback from a tender green bean is detected to be too weak, the peak inflation pressure of the subsequent squeezing action can be automatically reduced to achieve truly personalized adaptive processing. This closed loop, which uses "execution feedback" for control optimization in real time, transforms lossless operation from a design goal into a dynamic process that can be guaranteed in real time.

[0039] This invention integrates four functions—dispersion, cleaning, conveying, and size detection—that traditionally require separate modules, into a single airbag peristaltic process. This high degree of integration not only saves space and cost but also greatly reduces the number of times green beans are gripped, dropped, or collided inside the equipment. The green beans are conveyed from a piled-up state to being graded and delivered almost entirely in a continuous, gentle wave motion, minimizing the risk of cumulative damage at the system level. This level of systemic reliability cannot be achieved by optimizing a single component.

[0040] The textures on the outer surface of the airbag strip 1114 are intended to increase friction. However, during the periodic squeezing-relaxing peristalsis, these textures actually create and change tiny gaps and channels between the bean surface and the airbag. This dynamic change can effectively break the residue layer of the cleaning agent on the bean surface, generate local eddies and enhance the diffusion effect, thereby improving the mixing and exchange efficiency of the chemical cleaning agent in addition to the mechanical rubbing force, achieving an unexpected synergistic enhancement of the effects of physical rubbing and chemical cleaning.

[0041] In another embodiment of the present invention, please refer to Figure 1 The cleaning box 8 is installed on the support platform 9, the support platform 9 is installed on the side wall of the storage box 5, the storage box 5 is equipped with an operation panel 6, the storage box 5 is equipped with multiple cabinet doors 7, and the conveyor box 4 is installed on the storage box 5. The cleaning tank 8 is equipped with a cleaning agent tank 3 on top, and the feeding channel box 1 is equipped with a feeding hopper 2 on top.

[0042] In another embodiment of the present invention, the cleaning agent comprises a targeted enzyme preparation, a natural inclusion agent, and a biocompatible medium. The targeted enzyme preparation is compounded with organophosphorus degrading enzymes, laccase, and peroxidase, which can efficiently hydrolyze or oxidize most commonly used pesticides on green beans, and the action conditions are mild. The natural inclusion agent includes cyclodextrin, whose unique ring-shaped cavity structure can encapsulate pesticide molecules and some odor molecules like a pocket during the washing process, forming a dual guarantee of "first encapsulation and fixation, then catalytic degradation" with the enzymatic action. The biocompatible medium uses a solution of food-grade glycerol and water as a base to provide a stable active environment for the enzyme, while lubricating the surface of the green beans, and is completely biodegradable.

[0043] Cyclodextrin first binds to pesticide molecules in the folds of the green beans, extracting them from the surface and enriching them in the cleaning solution. The targeted enzyme then acts on the encapsulated pesticide molecules, catalyzing their decomposition into small-molecule acids, alcohols, and other non-toxic substances. The continuous peristalsis of the 1114 air bladder strips constantly renews the liquid film on the surface of the green beans, ensuring a continuous and efficient cycle of encapsulation and degradation until the pesticide residues are completely removed. All ingredients in the cleaner are of natural origin or biosynthetic, non-toxic, non-irritating, and completely biodegradable, with zero environmental impact. After cleaning, the pesticides have been decomposed into harmless substances, eliminating the need for toxic wastewater treatment, aligning with the concept of circular agriculture. Unlike alkaline cleaners that may damage the waxy layer of the green beans, this cleaner maximizes the preservation of the original flavor and storability of the beans. The cleaner is a low-foaming, highly lubricating liquid that does not affect the peristalsis and pressure sensing function of the air bladders. The gentle rubbing of the 1114 air bladder strips prolongs the contact reaction time between the enzymes and pesticide residues, improving catalytic efficiency at low temperatures. By integrating specific biosensors, the activity of key enzymes or degradation products can be monitored in real time during the cleaning process, and the cleaning endpoint can be intelligently determined, which is something that chemical cleaning agents cannot achieve.

[0044] In the description of this invention, unless otherwise stated, "a plurality of" means two or more. Although embodiments of the invention have been shown and described in the description of this invention, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A non-destructive cleaning and grading intelligent device for green beans, comprising: A conveyor box containing multiple conveyor belts is used to transport green beans of different lengths after cleaning and grading. A cleaning box is assembled on the conveyor channel box; The cleaning box is used to clean green beans that are conveyed from multiple conveyor belts; A feeding channel box is assembled at the end of a conveyor channel box and connected to the conveyor channel box; the feeding channel box is used to supply green beans to the conveyor channel box. The feature is that a cleaning and grading assembly is installed inside the feeding channel box. The cleaning and grading assembly includes two symmetrically distributed peristaltic screening components, and a feeding channel is formed between the two peristaltic screening components. The peristaltic screening components include peristaltic screening plates. The peristaltic screening plate separates the green beans one by one at the top of the feeding channel through peristalsis. After the green beans enter the feeding channel, the cleaning box introduces cleaning agent into the feeding channel to gently and non-damagingly clean the green beans. The system also detects the presence of pressure to grade the green beans into different lengths.

2. The intelligent equipment for non-destructive cleaning and grading of green beans according to claim 1, characterized in that, The peristaltic screening plate includes: Multiple airbag strips move in a cyclical manner by periodically inflating and deflating them. A support plate is mounted on multiple unit airbag strips to keep the unit airbag strips fixed and stable; the multiple unit airbag strips are distributed along the support plate in an array.

3. The intelligent equipment for non-destructive cleaning and grading of green beans according to claim 2, characterized in that, The unit airbag strip includes: A horizontal board, horizontally mounted on a support plate; An airbag strip is laid on the horizontal plate and directly connected and fixed to the horizontal plate; the outer side of the airbag strip is arc-shaped. Air guide channels are formed on the horizontal plate; Multiple unit air inlets are provided on the air guide groove and distributed along the air guide groove array; the unit air inlets are used to connect the air guide groove and the airbag strip.

4. The intelligent equipment for non-destructive cleaning and grading of green beans according to claim 3, characterized in that, The airbag strip is divided into multiple independent unit airbags, and the multiple unit airbags correspond one-to-one with multiple unit air inlets; pressure sensors are installed on the surface of the unit airbags; and textures are formed on the outer surface of the airbag strip.

5. The intelligent equipment for non-destructive cleaning and grading of green beans according to claim 1, characterized in that, The peristaltic screening component further includes: Gas mixing box, mounted on a peristaltic sieve plate; Two side sealing plates are distributed on both sides of the peristaltic screening plate.

6. The intelligent equipment for non-destructive cleaning and grading of green beans according to claim 5, characterized in that, The gas mixing chamber includes: Gas preparation chamber; A gas guiding chamber is formed on the gas mixing box; Multiple mounting slots are provided on the gas distribution box outside the gas guide cavity; Multiple air intake channels correspond one-to-one with multiple mounting slots; the air intake channels are opened inside the mounting slots and are used to connect the mounting slots and the air guide chamber.

7. The intelligent equipment for non-destructive cleaning and grading of green beans according to claim 6, characterized in that, The air guide chamber is divided into an inflation chamber and an air extraction chamber; the air intake channel is divided into an air inlet and an air outlet by a partition, and both the air inlet and the air outlet are equipped with solenoid valves; the air inlet is connected to the inflation chamber, and the air outlet is connected to the air extraction chamber.

8. The intelligent equipment for non-destructive cleaning and grading of green beans according to claim 8, characterized in that, The gas mixing box has a gas guide box installed on its back, and a gas guide pipe is installed on the gas guide box. An inlet pipe and an outlet pipe are installed inside the gas guide pipe. The inlet pipe passes through the gas guide box and enters the inflation chamber and communicates with the inflation chamber. The outlet pipe passes through the gas guide box and enters the suction chamber and communicates with the suction chamber. A blower is connected to the inlet pipe, and a suction fan is connected to the outlet pipe.

9. The intelligent equipment for non-destructive cleaning and grading of green beans according to claim 1, characterized in that, The cleaning box is installed on the support platform, the support platform is installed on the side wall of the storage box, the storage box is equipped with an operation panel, the storage box is equipped with multiple cabinet doors, and the conveyor channel box is installed on the storage box. A cleaning agent tank is installed on the top of the cleaning tank, and a feeding hopper is installed on the top of the feeding channel box.

10. The intelligent equipment for non-destructive cleaning and grading of green beans according to claim 1, characterized in that, The cleaning agent comprises components of a targeted enzyme preparation, a natural inclusion agent, and a biocompatible medium; the targeted enzyme preparation is compounded with organophosphorus degrading enzymes, laccase, and peroxidase; the natural inclusion agent includes cyclodextrin; and the biocompatible medium uses a solution of food-grade glycerol and water as a base to provide a stable active environment for the enzyme.

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