Modularized leaf vegetable full-process automatic harvesting and processing integrated machine

Abstract

The present application belongs to the leek automatic harvesting processing technical field, specifically relates to a modular leaf vegetable full-process automatic harvesting and processing all-in-one machine, including a vehicle frame and wheels installed on both sides of the vehicle frame, the front end of the vehicle frame is provided with a harvesting module, the center part of the vehicle frame is provided with a transmission module, the surface of the vehicle frame is provided with a cleaning module through a frame, and the tail end of the vehicle frame is provided with a micro-bubble cavitation fine cleaning machine box, five core processes of harvesting, conveying, three-stage cleaning, micro-bubble fine cleaning and preservation are integrated on a single self-propelled mobile platform, the barrier of traditional independent operation of each process is broken, the efficiency loss and quality deterioration of the manual transfer link are eliminated, and continuous assembly line operation from "field entry to finished product exit" is realized.

Description

Technical Field

[0001] This invention belongs to the field of automated harvesting and processing technology of chives, specifically relating to a modular leafy vegetable fully automated harvesting and processing integrated machine. Background Technology

[0002] Leeks are a major leafy vegetable in my country, ranking first in the world in both planting scale and consumption. The annual planting area is about 5.25 million mu (approximately 350,000 hectares), and the annual output is about 12 million tons. It has formed a large-scale industrial pattern. However, the post-harvest harvesting process still relies heavily on manual labor, and there are four common problems in the industry: Labor costs account for more than 55% of the total production cost of leeks, and can reach 60%-70% in large-scale planting bases, with labor costs exceeding 5,000 yuan per mu (approximately 0.067 hectares); The average daily harvesting volume of manual labor is only 80-120 kg, and the process relies on manual coordination, which makes it difficult to meet the timeliness requirements of the concentrated harvesting period; Manual harvesting is prone to uneven cuts and mechanical damage, and multi-stage transportation further aggravates losses and contamination. The comprehensive loss rate of leeks from the field to the market is 15%-20%, and the loss during the post-harvest storage period is as high as 30% or more.

[0003] Developed countries such as Europe, America, and Japan have developed semi-automatic / fully automatic harvesting robots, high-pressure water mist cleaning lines, and intelligent packaging systems for leafy vegetables such as lettuce and celery. However, there are obvious shortcomings: First, the system integration is low, and a complete closed loop from field harvesting to commercial processing has not been formed. Second, the design adaptability is poor, as it is designed for large-scale plain farms and is not well adapted to the high-density, multi-cropping, and small-ridge characteristic agricultural patterns of leeks in my country. Third, the core components are expensive, making it difficult to promote on a large scale in China.

[0004] Specifically, domestic research often focuses on local improvements in single processes, such as semi-automatic leek harvesters, simple bubble cleaning machines, and independent packaging machines. However, the overall technical level is insufficient: the mechanical design is crude, resulting in inconsistent cutting heights and severe root damage; simple soaking or high-pressure rinsing is often used, which has poor cleaning effect and consumes a lot of water; each process is independent of the others and relies on manual transfer, which is not only inefficient but also leads to a decrease in product freshness and physical damage. Summary of the Invention

[0005] The purpose of this invention is to provide a modular, fully automated harvesting and processing machine for leafy vegetables, aiming to solve the problems of insufficient overall technology in machines such as semi-automatic leek harvesters, simple bubble cleaning machines, and independent packaging machines: the mechanical design is crude, resulting in inconsistent cutting heights and severe root damage; simple soaking or high-pressure rinsing is often used, resulting in poor cleaning effect and high water consumption; each process is independent of the others, relying on manual transfer, which is not only inefficient but also leads to a decrease in product freshness and physical damage.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a modular leafy vegetable fully automated harvesting and processing integrated machine, including a frame and wheels installed on both sides of the frame, a harvesting module installed at the front end of the frame, a transmission module installed at the center of the frame, a cleaning module installed on the surface of the frame through a frame, and a microbubble cavitation fine washing machine box installed at the rear end of the frame. The harvesting module includes a dividing plate installed at the front end, a conveying guide plate connected to the other end of the dividing plate, a material guide plate installed on the surface of the conveying guide plate, a linear drive platform installed at the tail end of the conveying guide plate, a cutting disc connected to the bottom end of the linear drive platform via a motor, a drive motor installed on the surface of the conveying guide plate, a gear connected to the output end of the drive motor, and a rotating brush connected to the other side of the gear. The transmission module includes a transmission motor mounted on the side of the frame, the output end of the transmission motor is connected to a sprocket, a chain plate is mounted on the surface of the sprocket, and a placement plate is mounted on the inner side of the chain plate; The cleaning module includes a first high-pressure centrifugal fan and a second high-pressure centrifugal fan that are installed at an angle on the top of the frame. A mounting base is installed on the top surface of the frame, a crossbar is installed on the surface of the mounting base, a triangular bracket is installed on the surface of the crossbar, a water pipe is connected to the bottom end of the triangular bracket, and a spray head is installed at the bottom end of the water pipe.

[0007] As a modular, fully automated harvesting and processing machine for leafy vegetables according to the present invention, preferably, the surface of the frame is equipped with a protective plate, the front end of the linear drive platform is equipped with an infrared laser sensor array, and the cutting disc is subjected to static and modal analysis using ANSYS Workbench. 1) Model and Materials: The analysis object is a single-set wheel cutter assembly (including the cutter head and 6 cutting edges), made of 304 stainless steel, with an elastic modulus of [missing value]. Poisson's ratio Yield strength ; 2) Load and Constraints: Based on theoretical cutting force calculations, an equivalent uniformly distributed load is applied to the cutting edge area of ​​each blade. ,in The cutting force is distributed among the single blades. This represents the contact area of ​​the cutting edge. A fixed constraint is applied to the hub mounting surface. 3) Mesh generation: High-order tetrahedral elements were used for mesh generation, with mesh refinement applied to the stress concentration region at the blade root to ensure computational accuracy. The model generated a total of 156,890 nodes and 89,632 elements. 4) Static stress analysis: maximum equivalent stress, This occurs at the transition radius between the blade root and the cutter head, and is far below the material's yield strength, resulting in a safety factor... It meets the strength requirements; 5) Deformation analysis: Maximum deformation Located at the tip of the blade, the deformation is minimal, indicating sufficient structural rigidity to ensure cutting accuracy; 6) Modal analysis: Extract the first six natural frequencies, with the lowest order frequency being... The frequency is much higher than the excitation frequency corresponding to the working speed of the cutter head (<20Hz), which can effectively avoid resonance and ensure smooth operation.

[0008] As a modular, fully automated harvesting and processing machine for leafy vegetables according to the present invention, preferably, the first high-pressure centrifugal fan generates a directional laminar airflow curtain, wherein, according to the principles of fluid mechanics, the airflow generates a drag force on lightweight impurities. It can be represented as: ; in, The drag coefficient, air density, The windward area of ​​impurities. This represents the airflow velocity.

[0009] As a modular, fully automated harvesting and processing machine for leafy vegetables according to the present invention, preferably, the spray heads are arranged in a fan-shaped array to form a covering low-pressure (0.2-0.3MPa) water mist spray, and the water inlet end of the water pipe is equipped with a filter device.

[0010] As a modular leafy vegetable fully automated harvesting and processing integrated machine of the present invention, preferably, the microbubble cavitation fine washing machine box is equipped with a positioning plate inside, and the end of the positioning plate is equipped with a microporous aeration disc.

[0011] As a modular, fully automated harvesting and processing machine for leafy vegetables according to the present invention, preferably, pressurized air and water are mixed through the microporous aeration disc to generate a large number of microbubbles with a diameter of 50-100 μm. During the upward movement of these microbubbles, they undergo cavitation effects, resulting in drastic changes in internal pressure. Upon collapse, they generate localized high temperature and pressure and release hydroxyl radicals (·OH). The kinetic process can be simplified and described by the Rayleigh-Plesset equation: ; in, Where is the bubble radius, The internal pressure of the bubble. For hydrostatic pressure of the liquid at a distance, For surface tension, This refers to the viscosity of the liquid.

[0012] As a modular, fully automated harvesting and processing machine for leafy vegetables according to the present invention, preferably, a preservation compartment is installed at the rear end of the frame, an ultraviolet lamp is installed on the top of the inner wall of the preservation compartment, a semiconductor cooling chip is installed on the top of the frame near the preservation compartment, and an air-cooling system is installed on the bottom surface of the semiconductor cooling chip.

[0013] As a modular, fully automated harvesting and processing machine for leafy vegetables according to the present invention, preferably, the air-cooling system uses a PID control algorithm to stabilize the temperature inside the preservation chamber at the optimal storage temperature range of 58℃, and the relationship between respiration intensity (Q) and temperature (T) follows the Arrhenius equation: ; In the formula, For temperature The respiratory rate decreases to 1 / 2 to 1 / 2.5 of its original rate for every 10°C decrease in temperature.

[0014] As a modular, fully automated harvesting and processing machine for leafy vegetables according to the present invention, preferably, the inactivation of microorganisms by the ultraviolet lamp follows a first-order kinetic model: ; in, and These represent the initial number of viable bacteria and the number of viable bacteria at time t, respectively. This is the microbial-specific inactivation rate constant. Ultraviolet radiation intensity, This refers to the irradiation time.

[0015] As a modular, fully automated harvesting and processing machine for leafy vegetables according to the present invention, preferably, the bottom of the frame (1) is provided with a power system, which consists of a 48V / 50Ah lithium iron phosphate battery pack, a maximum power point tracking solar charge controller, and a 200W flexible solar panel. The driving time (T) of the power system can be estimated as follows: ; in, The battery capacity is 50Ah. The system voltage is 48V, and η is the overall discharge efficiency (approximately 0.85). This represents the average operating power of the equipment.

[0016] Compared with the prior art, the beneficial effects of the present invention are: This invention integrates five core processes—harvesting, conveying, three-stage cleaning, microbubble washing, and preservation—into a single self-propelled mobile platform, breaking down the barriers of traditional independent operation of each process, eliminating efficiency losses and quality deterioration caused by manual transfer links, and realizing continuous assembly line operation from "field entry to finished product exit".

[0017] This invention employs an infrared laser sensor array in conjunction with an adaptive height adjustment system for a linear drive platform. The measured average cutting stubble height is 24.7 mm, with a deviation controlled within ±5 mm. The proportion of clean, tear-free cuts reaches 98.5%, avoiding the problems of uneven cuts and severe root damage caused by manual harvesting.

[0018] This invention solves the problems of traditional mechanical brushes easily damaging blades and high water consumption caused by the innovative use of a three-stage cleaning process: non-contact airflow impurity removal, low-pressure water bath pre-rinsing, and microbubble cavitation fine cleaning.

[0019] This invention employs a synergistic preservation strategy of "rapid gradient temperature regulation to inhibit respiration combined with short-duration high-intensity ultraviolet sterilization," ensuring food safety without the use of any chemical preservatives throughout the process. Attached Figure Description

[0020] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall assembly structure of a modular leafy vegetable fully automated harvesting and processing machine.

[0021] Figure 2 This is a schematic diagram of the frame structure of a modular leafy vegetable fully automated harvesting and processing machine.

[0022] Figure 3 This is a schematic diagram of the harvesting module structure of a modular leafy vegetable fully automated harvesting and processing machine.

[0023] Figure 4 This is a schematic diagram of the cleaning module structure of a modular leafy vegetable fully automated harvesting and processing machine.

[0024] Figure 5 A schematic diagram of the microbubble cavitation fine washing machine chassis structure for a modular leafy vegetable fully automated harvesting and processing integrated machine.

[0025] Figure 6 A schematic diagram of the preservation compartment structure of a modular leafy vegetable fully automated harvesting and processing integrated machine.

[0026] In the diagram: 1. Frame; 11. Protective plate; 2. Wheel; 3. Harvesting module; 31. Dividing plate; 32. Conveying guide plate; 33. Material guide plate; 34. Linear drive platform; 35. Cutting disc; 36. Drive motor; 37. Gear; 38. Rotary brush; 4. Transmission module; 41. Transmission motor; 42. Sprocket; 43. Chain plate; 44. Placement plate; 5. Cleaning module; 51. First high-pressure centrifugal fan; 52. Mounting base; 53. Crossbar; 54. Triangular bracket; 55. Water pipe; 56. Spray head; 57. Second high-pressure centrifugal fan; 6. Microbubble cavitation fine cleaning machine box; 61. Positioning plate; 62. Microporous aeration disc; 7. Fresh-keeping compartment; 71. Ultraviolet lamp tube; 8. Semiconductor refrigeration chip; 9. Air-cooling system. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Please see Figure 1-6 The present invention provides the following technical solution: a modular fully automated harvesting and processing machine for leafy vegetables, the specific implementation principle of each module is as follows: Overall System Implementation Principle The automated harvesting and processing integrated machine uses a frame 1 as the main load-bearing body, with wheels 2 installed on both sides to form a low ground pressure mobile chassis. From front to back, it integrates a harvesting module 3, a transmission module 4, a cleaning module 5, a microbubble cavitation fine washing machine box 6, and a preservation compartment 7, forming a continuous assembly line layout in space. Each module is connected through standardized mechanical and electrical interfaces, which has the characteristics of high cohesion and low coupling, making it easy to maintain, upgrade, and expand its functions.

[0029] The machine adopts a three-layer control architecture of "perception-decision-execution": the front infrared laser sensor array collects information on the height and density of the leek canopy and transmits it to the main control unit for decision-making, which controls the cutting height and speed of the harvesting module, the water pressure and airflow intensity of the washing module, and the temperature and irradiation time of the preservation chamber, so as to realize the adaptive and collaborative operation of the whole process.

[0030] Harvesting Module Implementation Principle Harvesting module 3 is responsible for sorting, positioning, and low-damage cutting of the chives. Its specific working principle is as follows: 1. Material sorting and guidance: The front-end dividing plate 31 sorts the chives growing in the field into neat strips to prevent them from falling over and getting tangled during harvesting; the conveying guide plate 32 works in conjunction with the material guide plate 33 to guide the chives upright to the cutting area to ensure consistent cutting posture.

[0031] 2. Adaptive height adjustment: The infrared laser sensor array at the front end of the linear drive platform 34 performs non-contact scanning of the leek canopy, calculates the optimal cutting plane in real time, and drives the linear module to adjust the height of the cutting disc 35 to ensure consistent stubble height.

[0032] 3. Low-damage cutting: The cutting disc 35 adopts four sets of series dynamic balance wheel cutters. Each set of wheel cutters is driven by an independent servo motor with stepless speed regulation of 300-1200RPM. The cutting disc (35) is optimized by ANSYS Workbench: the material is 304 stainless steel, the maximum equivalent stress at the transition rounded corner of the blade root is 148MPa (safety factor 1.38), the maximum deformation at the blade tip is 0.032mm, and the lowest natural frequency is 285Hz, which is much higher than the working excitation frequency (<20Hz), effectively avoiding resonance and ensuring cutting accuracy and stable operation.

[0033] 4. Auxiliary conveying: The drive motor 36 drives the rotating brush 38 to rotate through the gear 37, which smoothly pushes the cut chives to the transmission module 4, avoiding the accumulation and blockage of chives at the cutting opening.

[0034] Transmission module implementation principle The transmission module 4 is responsible for vertically and orderly conveying the harvested chives to the subsequent cleaning stage. The specific working principle is as follows: the transmission motor 41 drives the sprocket 42 to rotate, which drives the chain plate 43 to run in a cycle. The inner side of the chain plate 43 is evenly installed with placement plates 44 to support the cut chives, keep them upright, and avoid the leaves from being squeezed and broken. By adjusting the speed of the transmission motor 41, the conveying speed can be precisely matched with the harvesting speed and the cleaning speed, ensuring the continuity of the assembly line operation.

[0035] Cleaning module implementation principle The cleaning module 5 and the microbubble cavitation cleaning chamber 6 together constitute a three-stage cleaning system. Through physical synergy, they achieve efficient, low-damage, and water-saving cleaning. The specific working principle is as follows: Level 1: Non-contact airflow impurity removal The inclined installation of the first high-pressure centrifugal fan 51 and the second high-pressure centrifugal fan 57 generates a directional laminar airflow curtain. According to the principles of fluid mechanics, the drag force exerted by the airflow on lightweight impurities is: ; in, The drag coefficient, air density, The windward area of ​​impurities. By optimizing the airflow velocity and duct design, the drag force of the airflow is made greater than the adhesion between impurities and chives, thus removing lightweight impurities such as dead leaves, grass clippings, and cobwebs without damage, solving the problem that traditional mechanical brushes easily damage the leaves.

[0036] Second stage: Low-pressure water bath pre-rinse Mounting base 52, crossbar 53, and triangular bracket 54 constitute the spray support structure. The fan-shaped spray heads 56 at the bottom of the water pipe 55 are arranged in an array to form a covering low-pressure (0.2-0.3MPa) water mist, which initially wets the surface of the chives and washes away floating dust and some mud. The water inlet end of the water pipe 55 is equipped with a filter device to prevent mud from clogging the nozzles; the spray water is collected, settled, filtered, and recycled, only to replenish evaporation and carry-away losses.

[0037] Third stage: Microbubble cavitation fine washing Inside the microbubble cavitation cleaning chamber 6, a microporous aeration disc 62 is fixed by a positioning plate 61. When pressurized air is introduced and mixed with water, a large number of microbubbles with a diameter of 50-100 μm are generated. These microbubbles undergo cavitation during their ascent, and their dynamics follow the Rayleigh-Plesset equation: ; in, Where is the bubble radius, The internal pressure of the bubble. For hydrostatic pressure of the liquid at a distance, For surface tension, With a liquid viscosity, the collapse of the bubbles generates local high temperature and pressure (approximately 5000K, 100MPa) and releases hydroxyl radicals (・OH). Through strong shearing force and oxidation, these radicals break down and peel off stubborn mud and organic dirt from the wrinkles and roots of the chives. At the same time, the physical adsorption of the microbubbles can improve cleaning efficiency, achieving the dual effect of deep cleaning and water conservation.

[0038] Implementation principle of refrigerated compartment The preservation compartment 7 adopts a dual-modal synergistic preservation technology of "rapid gradient temperature change + ultraviolet sterilization". The specific working principle is as follows: Rapid gradient temperature change preservation: The semiconductor cooling chip 8 works in conjunction with the bottom air cooling system 9 to adopt a rapid gradient cooling strategy: First, the temperature of the preservation chamber is rapidly reduced from the ambient temperature to 14℃ within 12 minutes, which strongly inhibits the respiration intensity and enzyme activity of the chives; then, the temperature inside the chamber is stabilized at the optimal storage range of 5-8℃ through a PID control algorithm.

[0039] Ultraviolet sterilization and preservation: Ultraviolet lamps 71 with a wavelength of 254nm are installed at the top of the inner wall of the preservation chamber 7. By controlling the conveying speed of the chives, ensuring that they receive 3-5 seconds of effective irradiation, the kill logarithm of surface putrefactive bacteria such as Pseudomonas and Erwinia can reach 2-3 orders of magnitude, ensuring product safety from a biological perspective, and without significantly affecting the temperature and quality of the chives.

[0040] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A modular, fully automated harvesting and processing machine for leafy vegetables, comprising a frame (1) and wheels (2) mounted on both sides of the frame (1), characterized in that: A harvesting module (3) is installed at the front end of the frame (1), a transmission module (4) is installed at the center of the frame (1), a cleaning module (5) is installed on the surface of the frame (1) through a frame, and a microbubble cavitation fine cleaning machine box (6) is installed at the rear end of the frame (1). The harvesting module (3) includes a dividing plate (31) installed at the front end, a conveying guide plate (32) connected to the other end of the dividing plate (31), a material guide plate (33) installed on the surface of the conveying guide plate (32), a linear drive platform (34) installed at the tail end of the conveying guide plate (32), a cutting disc (35) connected to the bottom end of the linear drive platform (34) via a motor, a drive motor (36) installed on the surface of the conveying guide plate (32), a gear (37) connected to the output end of the drive motor (36), and a rotating brush (38) connected to the other side of the gear (37). The transmission module (4) includes a transmission motor (41) installed on the side of the frame (1). The output end of the transmission motor (41) is connected to a sprocket (42). A chain plate (43) is installed on the surface of the sprocket (42). A placement plate (44) is installed on the inner side of the chain plate (43). The cleaning module (5) includes a first high-pressure centrifugal fan (51) and a second high-pressure centrifugal fan (57) that are inclinedly installed on the top of the frame (1). A mounting base (52) is installed on the top surface of the frame (1). A crossbar (53) is installed on the surface of the mounting base (52). A triangular bracket (54) is installed on the surface of the crossbar (53). A water pipe (55) is connected to the bottom end of the triangular bracket (54). A spray head (56) is installed at the bottom end of the water pipe (55).

2. The modular leafy vegetable fully automated harvesting and processing integrated machine according to claim 1, characterized in that: The surface of the frame (1) is fitted with a protective plate (11), the front end of the linear drive platform (34) is equipped with an infrared laser sensor array, and the cutting disc (35) is subjected to static and modal analysis using ANSYS Workbench. 1) Model and Materials: The analysis object is a single-set wheel cutter assembly (including the cutter head and 6 cutting edges), made of 304 stainless steel, with an elastic modulus of [missing value]. Poisson's ratio Yield strength ; 2) Load and Constraints: Based on theoretical cutting force calculations, an equivalent uniformly distributed load is applied to the cutting edge area of ​​each blade. ,in The cutting force is distributed among the single blades. This represents the contact area of ​​the cutting edge. A fixed constraint is applied to the hub mounting surface. 3) Mesh generation: High-order tetrahedral elements were used for mesh generation, with mesh refinement applied to the stress concentration region at the blade root to ensure computational accuracy. The model generated a total of 156,890 nodes and 89,632 elements. 4) Static stress analysis: maximum equivalent stress, This occurs at the transition radius between the blade root and the cutter head, and is far below the material's yield strength, resulting in a safety factor... It meets the strength requirements; 5) Deformation analysis: Maximum deformation Located at the tip of the blade, the deformation is minimal, indicating sufficient structural rigidity to ensure cutting accuracy; 6) Modal analysis: Extract the first six natural frequencies, with the lowest order frequency being... The frequency is much higher than the excitation frequency corresponding to the working speed of the cutter head (<20Hz), which can effectively avoid resonance and ensure smooth operation.

3. The modular leafy vegetable fully automated harvesting and processing integrated machine according to claim 1, characterized in that: The first high-pressure centrifugal fan (51) generates a directional laminar airflow curtain, wherein, according to the principles of fluid mechanics, the airflow exerts a drag force on light impurities. It can be represented as: ； in, The drag coefficient, air density, The windward area of ​​impurities. This represents the airflow velocity.

4. The modular leafy vegetable fully automated harvesting and processing integrated machine according to claim 1, characterized in that: The spray head (56) is arranged in a fan-shaped array to form a covering low-pressure (0.2-0.3MPa) water mist spray. The water inlet end of the water pipe (55) is equipped with a filter device.

5. The modular leafy vegetable fully automated harvesting and processing integrated machine according to claim 1, characterized in that: The microbubble cavitation cleaning machine box (6) is equipped with a positioning plate (61), and a microporous aeration disc (62) is installed at the end of the positioning plate (61).

6. The modular leafy vegetable fully automated harvesting and processing integrated machine according to claim 5, characterized in that: The microporous aeration disc (62) introduces pressurized air and water to mix, generating a large number of microbubbles with a diameter of 50-100 μm. During the upward movement of these microbubbles, cavitation occurs, causing drastic changes in internal pressure. Upon collapse, local high temperature and pressure are generated, releasing hydroxyl radicals (·OH). The kinetic process can be simplified and described by the Rayleigh-Plesset equation: ； in, Where is the bubble radius, The internal pressure of the bubble. For hydrostatic pressure of the liquid at a distance, For surface tension, This refers to the viscosity of the liquid.

7. The modular leafy vegetable fully automated harvesting and processing integrated machine according to claim 1, characterized in that: A refrigeration compartment (7) is installed at the rear end of the frame (1). An ultraviolet lamp tube (71) is installed on the top of the inner wall of the refrigeration compartment (7). A semiconductor cooling chip (8) is installed on the top of the frame (1) near the refrigeration compartment (7). A wind-cooling system (9) is installed on the bottom surface of the semiconductor cooling chip (8).

8. The modular leafy vegetable fully automated harvesting and processing integrated machine according to claim 7, characterized in that: The air-cooling system (9) uses a PID control algorithm to stabilize the temperature inside the preservation compartment (7) at the optimal storage temperature range of 58°C. The relationship between respiration intensity (Q) and temperature (T) follows the Arrhenius equation: ； In the formula, For temperature The respiratory rate decreases to 1 / 2 to 1 / 2.5 of its original rate for every 10°C decrease in temperature.

9. A modular, fully automated harvesting and processing machine for leafy vegetables according to claim 7, characterized in that: The inactivation of microorganisms by the ultraviolet lamp (71) follows a first-order kinetic model: ； in, and These represent the initial number of viable bacteria and the number of viable bacteria at time t, respectively. This is the microbial-specific inactivation rate constant. Ultraviolet radiation intensity, This refers to the irradiation time.

10. The modular leafy vegetable fully automated harvesting and processing integrated machine according to claim 1, characterized in that: The bottom of the vehicle frame (1) is equipped with a power system, which consists of a 48V / 50Ah lithium iron phosphate battery pack, a maximum power point tracking solar charge controller, and a 200W flexible solar panel. The driving time (T) of the power system can be estimated as follows: ； in, The battery capacity is 50Ah. The system voltage is 48V, and η is the overall discharge efficiency (approximately 0.85). This represents the average operating power of the equipment.

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