Quantitative portioning and cleaning packaging integrated device for leaf vegetables

Abstract

The application discloses a kind of quantitative portioning and cleaning packaging integrated device for leaf vegetables, including rack, transmission mechanism, quantitative portioning mechanism, foaming cleaning mechanism, draining mechanism, packaging mechanism and discharge conveyor belt, realize the continuous automation processing of leaf vegetables by integrated design, solve the problem of poor connection, pollution risk and low efficiency caused by traditional segmented operation, with the advantages of improving portioning accuracy, reducing pollution risk, improving processing efficiency.

Description

Technical Field

[0001] This invention belongs to the technical field of quantitative portioning, efficient cleaning, draining and automated packaging of leafy vegetables, and specifically relates to an integrated device for quantitative portioning, cleaning and packaging of leafy vegetables. Background Technology

[0002] In current leafy vegetable processing practices, portioning is primarily done manually, followed by transfer to separate processes such as washing and packaging. This segmented operation leads to poor coordination between multiple stages. For example, it's difficult to precisely control the weight and quantity of leafy vegetables during manual portioning, resulting in significant fluctuations in portioning results. This, in turn, causes inconsistencies in subsequent packaging specifications, impacting product market image and consumer satisfaction. Furthermore, frequent direct contact between operators and leafy vegetables, especially during portioning and handling, easily introduces microorganisms or impurities from the environment into the product, significantly increasing the risk of secondary contamination and posing a potential threat to food safety. In addition, the lack of effective integration between portioning, washing, and packaging processes leads to accumulation or stagnation of leafy vegetables during transfer between processes, prolonging overall processing time, reducing production efficiency, and increasing material waste. This traditional processing method is ill-suited to the demands of modern food industry for automation, standardization, and high efficiency, severely hindering the optimization and upgrading of the entire leafy vegetable processing flow. Summary of the Invention

[0003] The purpose of this invention is to provide an integrated device for quantitative portioning, cleaning and packaging of leafy vegetables, so as to overcome the problems of low integration, low portioning accuracy, poor drainage efficiency and insufficient packaging sealing in the existing technology for leafy vegetable processing.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A device for quantitative portioning, washing, and packaging of leafy vegetables includes a frame and a transmission mechanism, a quantitative portioning mechanism, a foaming and washing mechanism, a draining mechanism, a packaging mechanism, and a discharge conveyor belt mounted on the frame. The quantitative portioning mechanism is located at the beginning of the transmission mechanism and is used to quantitatively sieve the leafy vegetables and then transfer them to the transmission mechanism. The foaming and washing mechanism is installed on one side of the transmission mechanism and is used to wash the quantitatively portioned leafy vegetables. The draining mechanism is located at the end of the transmission mechanism and is used to drain the washed leafy vegetables. The packaging mechanism is installed at the outlet end of the draining mechanism and is used to package the drained leafy vegetables. The discharge conveyor belt is installed at the outlet of the packaging mechanism and is used to transport the packaged leafy vegetables.

[0005] Preferably, the transmission mechanism adopts a double-layer circulation structure, with the foaming and cleaning mechanism located in the lower section of the transmission mechanism and the draining mechanism located in the upper section of the transmission mechanism. The draining mechanism is located at the upper end of the foaming and cleaning mechanism, and the upper end of the foaming and cleaning mechanism has an open structure.

[0006] Preferably, the transmission mechanism includes guide rails, transmission chains, and an arched bottom mesh basket. The two guide rails are arranged in parallel, and each guide rail is a closed loop structure. A transmission chain is provided in both guide rails. The transmission chains are installed along the guide rails. The two ends of the arched bottom mesh basket are installed on the two transmission chains at intervals. The arched bottom mesh basket can move along the guide rails with the transmission chains. The two ends of the arched bottom mesh basket are rotatably connected to the transmission chains.

[0007] Preferably, multiple arched bottom mesh baskets are installed at intervals between the two drive chains, and the multiple arched bottom mesh baskets move cyclically along the guide rail.

[0008] Preferably, the quantitative portioning mechanism includes a funnel-shaped feeding box and a dispensing hopper. The funnel-shaped feeding box includes a box body, and a drive motor is installed inside the box body. Multiple dispensing hoppers are arranged in a circular array on the output shaft of the drive motor. The upper end of the funnel-shaped feeding box is provided with a feeding port, and the lower end of the funnel-shaped feeding box is provided with a dispensing port. The dispensing hopper can receive leafy vegetables put into the upper feeding port of the funnel-shaped feeding box. As the dispensing hopper rotates driven by the motor, it puts the received leafy vegetables into the transmission mechanism through the dispensing port at the lower end of the funnel-shaped feeding box.

[0009] Preferably, the distribution bag has a U-shaped structure, and the U-shaped structure is used to store leafy vegetables.

[0010] Preferably, the material distribution bag includes a plurality of partitions arranged circumferentially on the rotating shaft, and the partitions are arc-shaped partitions.

[0011] Preferably, the foaming cleaning mechanism includes a foam generator and a cleaning tank. The foam generator is located inside the cleaning tank, which contains cleaning liquid. Openings are provided on both sides of the cleaning tank. An arched bottom mesh basket, driven by a transmission mechanism, enters the cleaning tank through one opening and exits from the other. The foam generator vibrates and sprays the cleaning liquid onto the leafy vegetables inside the arched bottom mesh basket to clean them. The guide rail inside the cleaning tank is lower than the height of the outer sides of the cleaning tank. The bottom of the arched bottom mesh basket on the guide rail is lower than the openings on both sides of the cleaning tank. When the arched bottom mesh basket moves into the cleaning tank with the guide rail, the bottom of the arched bottom mesh basket contacts the opening, causing the basket to tilt. As the basket moves into the cleaning tank, the leafy vegetables inside are immersed in the cleaning liquid. The cleaning tank also has a water exchange port for circulating and replacing the cleaning liquid.

[0012] Preferably, the draining mechanism includes a draining frame and a perforated conveyor belt mounted on the draining frame. The perforated conveyor belt is inclined and driven by a vibration motor. The perforated conveyor belt vibrates and filters the water from the washed leafy vegetables before conveying them to the packaging mechanism. Preferably, the perforated conveyor belt is multi-stage, with multiple perforated conveyor belts inclined and connected end to end. The leafy vegetables fall from the highest point of the first perforated conveyor belt into the next perforated conveyor belt. A drainage trough is provided at the bottom of the draining frame.

[0013] Preferably, the packaging mechanism includes a pressure-sensitive conveyor belt and a thermoplastic packaging machine. The pressure-sensitive conveyor belt is installed at the beginning of the packaging mechanism and is located at the bottom of the draining frame. The drained leafy vegetables enter the pressure-sensitive conveyor belt, and the thermoplastic packaging machine packages the drained leafy vegetables. A cutting component is provided on one side of the thermoplastic packaging machine. The packaging film conveying component unfolds the packaging film to wrap a single portion of leafy vegetables. The sealing component heats and seals the package. The cutting component cuts the continuous package into individual small packages, which are finally output to the discharge port by the discharge conveyor belt.

[0014] Compared with the prior art, the present invention has the following beneficial technical effects: This application provides an integrated device for quantitative portioning, cleaning, and packaging of leafy vegetables, including a frame, a transmission mechanism, a quantitative portioning mechanism, a foaming and cleaning mechanism, a draining mechanism, a packaging mechanism, and a discharge conveyor belt. Through integrated design, it realizes continuous automated processing of leafy vegetables, solving the problems of poor connection, pollution risk, and low efficiency caused by traditional segmented operations. It has the advantages of improving portioning accuracy, reducing pollution risk, and improving processing efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of an integrated device for quantitative portioning, cleaning, and packaging of leafy vegetables according to an embodiment of the present invention.

[0016] Figure 2 This is a schematic diagram of the overall transmission mechanism of an integrated device for quantitative portioning, cleaning, and packaging of leafy vegetables, according to an embodiment of the present invention.

[0017] Figure 3 This is a schematic diagram of the overall quantitative portioning of a device for quantitative portioning, cleaning, and packaging of leafy vegetables, according to an embodiment of the present invention.

[0018] Figure 4 This is a schematic diagram of the foaming and cleaning mechanism of an integrated device for quantitative portioning, cleaning, and packaging of leafy vegetables, according to an embodiment of the present invention.

[0019] Figure 5 This is a schematic diagram of the overall draining mechanism of an integrated device for quantitative portioning, washing, and packaging of leafy vegetables, according to an embodiment of the present invention.

[0020] Figure 6This is a schematic diagram of the overall packaging mechanism of a quantitative portioning, cleaning and packaging integrated device for leafy vegetables according to an embodiment of the present invention.

[0021] Figure 7 This is a schematic diagram of the foaming and cleaning mechanism of an integrated device for quantitative portioning, cleaning, and packaging of leafy vegetables, according to an embodiment of the present invention.

[0022] Figure 8 This is a sample image of an integrated device for quantitative portioning, cleaning, and packaging of leafy vegetables, as described in an embodiment of the present invention.

[0023] In the diagram, 1. Frame; 2. Transmission mechanism; 3. Quantitative dispensing mechanism; 4. Foaming and cleaning mechanism; 5. Draining mechanism; 6. Packaging mechanism; 7. Discharge conveyor belt; 21. Guide rail; 22. Transmission chain; 23. Arched bottom basket; 31. Funnel-type feed box; 32. Dispensing hopper; 41. Bubble generator; 42. Cleaning tank; 43. Cleaning fluid; 51. Drainage trough; 52. Perforated conveyor belt; 53. Draining rack; 61. Packaging film conveying assembly; 62. Sealing assembly; 63. Cutting assembly; 8. Tilting rod. Detailed Implementation

[0024] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. 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 should fall within the scope of protection of the present invention.

[0025] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data used in this way are interchangeable where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0026] In traditional leafy vegetable processing, inconsistent portioning weights lead to fluctuations in subsequent packaging specifications; human contact introduces the risk of secondary contamination, posing food safety hazards; simultaneously, the lack of effective coordination between the portioning, washing, and packaging processes results in reduced production efficiency and material accumulation, hindering the improvement of overall automation levels. Specifically, inconsistent portioning weights stem from the randomness of manual operation, making it impossible to uniformly measure the quantity of leafy vegetables after portioning, thus affecting the stability of packaging specifications; frequent human contact increases the probability of microbial contamination, thereby raising food safety risks; poor coordination between processes leads to mismatched production rhythms, material stagnation between stages, and decreased equipment operating efficiency.

[0027] In the leafy vegetable processing production line, when operators manually portion the vegetables, the size of the piles varies. When the vegetables are transported to the washing stage, piles of oversized vegetables cause localized accumulation on the conveyor belt, preventing some vegetables from being fully immersed in the washing medium and resulting in insufficient washing. In the packaging stage, due to the weight deviation of the vegetables, the packaging equipment needs to be stopped and adjusted multiple times, extending the processing cycle. At the same time, the increased frequency of manual intervention further amplifies the risk of contamination. There is a significant retention of materials between the washing and packaging processes, which disrupts the continuity of the production line operation.

[0028] Furthermore, if the above problems are not resolved, fluctuations in packaging specifications will lead to a decrease in product qualification rates, food safety hazards will cause quality accidents, lack of coordination between processes will reduce the stability of production line operation, reduce equipment utilization, and ultimately hinder the implementation and promotion of automation technology.

[0029] In response, this application proposes an integrated device for quantitative portioning, washing, and packaging of leafy vegetables, such as... Figures 1 to 7 As shown, the device includes a frame 1 and a transmission mechanism 2, a quantitative portioning mechanism 3, a foaming and washing mechanism 4, a draining mechanism 5, a packaging mechanism 6, and a discharge conveyor belt 7 mounted on the frame 1. The quantitative portioning mechanism 3 is located at the beginning of the transmission mechanism 2 and is used to quantitatively sieve leafy vegetables before transferring them to the transmission mechanism 2. The foaming and washing mechanism 4 is installed on one side of the transmission mechanism 2 and is used to wash the quantitatively portioned leafy vegetables on the transmission mechanism 2. The draining mechanism 5 is located at the end of the transmission mechanism 2 and is used to drain the washed leafy vegetables. The packaging mechanism 6 is installed at the outlet end of the draining mechanism 5 and is used to package the drained leafy vegetables. The discharge conveyor belt 7 is installed at the outlet of the packaging mechanism 6 and is used to transport the packaged leafy vegetables. The leafy vegetables in this application mainly refer to celery, garland chrysanthemum, and leeks.

[0030] Frame 1 is the supporting structure of the entire device, used to support and fix the various functional modules in the device. Frame 1 adopts a variety of materials and structural forms, such as welded steel structure, aluminum alloy profile frame, etc., to adapt to different production environments and strength requirements.

[0031] The transmission mechanism 2 is the core component of the device responsible for material conveying. Its function is to transport the quantitatively portioned leafy vegetables from one processing stage to the next.

[0032] The quantitative portioning mechanism 3 is a module used for precise portioning of leafy vegetables. In the processing of leafy vegetables, achieving quantitative portioning is a crucial step in ensuring product consistency. This mechanism can accurately divide the leafy vegetables into several portions according to preset weight or volume standards and smoothly convey them to the transmission mechanism 2.

[0033] The foaming and washing mechanism 4 is a module used to wash leafy vegetables; washing is an important step in removing mud, impurities, and microorganisms from the surface of leafy vegetables. This mechanism ensures that the leafy vegetables reach cleanliness standards without damage through foaming, spraying, or soaking.

[0034] The draining mechanism 5 is a module used to remove surface moisture from leafy vegetables. The packaging mechanism 6 is a module used to package the drained leafy vegetables. Packaging is an important step in protecting products, extending shelf life, and facilitating transportation and sales. The aforementioned mechanisms can automatically package leafy vegetables according to preset packaging forms and specifications.

[0035] The discharge conveyor belt 7 is a module used to transport the packaged leafy vegetables out of the device. The conveyor belt ensures a smooth connection in the production process, transporting the finished leafy vegetables from the packaging mechanism 6 to the next stage, such as warehousing or transportation.

[0036] This embodiment provides an integrated device for quantitative portioning, cleaning, and packaging of leafy vegetables. The device includes a frame 1 and a transmission mechanism 2, a quantitative portioning mechanism 3, a foaming and cleaning mechanism 4, a draining mechanism 5, a packaging mechanism 6, and a discharge conveyor belt 7 mounted on the frame 1.

[0037] The quantitative portioning mechanism 3 is located at the beginning of the transmission mechanism 2 and is used to quantitatively sieve the leafy vegetables before transferring them to the transmission mechanism 2. The quantitative portioning mechanism 3 employs a portioning system based on a weighing sensor, controlling the opening and closing of the feeding gate through a preset weight threshold to achieve quantitative portioning of the leafy vegetables. Alternatively, a volumetric portioning device can be used, employing a fixed-volume measuring hopper or measuring cup for portioning.

[0038] A foaming cleaning mechanism 4 is installed on one side of the transmission mechanism 2 and is used to clean the leafy vegetables that have been quantitatively processed on the transmission mechanism 2. The foaming cleaning mechanism 4 can be implemented in various ways. For example, it can be used for spray cleaning, where high-pressure water jets are used to rinse the surface of the leafy vegetables and remove adhering substances. Alternatively, it can be used for immersion cleaning, where the leafy vegetables are immersed in a cleaning solution and cleaned by stirring or bubbling. Furthermore, ultrasonic cleaning technology can be used, utilizing the cavitation effect generated by ultrasound in the cleaning solution to remove dirt from the surface of the leafy vegetables. All these cleaning methods aim to effectively remove mud, impurities, and microorganisms from the surface of the leafy vegetables, ensuring their cleanliness.

[0039] The draining mechanism 5 is located at the end of the transmission mechanism 2 and is used to drain the washed leafy vegetables. The draining mechanism 5 can be implemented in several ways. One method is vibration draining, where mechanical vibration causes the leafy vegetables to tumble on a screen, accelerating water removal. Another method is air drying, where a blower generates airflow to remove moisture from the surface of the leafy vegetables. All these draining methods aim to effectively remove residual moisture from the surface of the leafy vegetables, providing dry material for subsequent packaging.

[0040] Packaging mechanism 6 is installed at the outlet end of draining mechanism 5 and is used to package the drained leafy vegetables. Packaging mechanism 6 can be implemented in various ways. For example, a semi-automatic packaging machine can be used, with mechanical assistance to complete the filling and sealing of the packaging bags. Alternatively, a fully automatic packaging machine can be used to automate the entire packaging process from bag feeding, filling, sealing to output. All these packaging methods aim to properly seal the processed leafy vegetables to protect the product and facilitate distribution.

[0041] The discharge conveyor belt 7 is installed at the outlet of the packaging mechanism 6 to transport the packaged leafy vegetables. The discharge conveyor belt 7 can be implemented in various ways. For example, a flat belt conveyor can be used, which transports the packaged leafy vegetables to a designated location through continuous belt movement. Alternatively, a roller conveyor can be used, which transports materials through the rotation of a series of rollers. In addition, a chain conveyor belt can be used, suitable for conveying heavier or irregularly shaped packages. All these conveyor belts are designed to ensure the smooth output of packaged products and connect with subsequent logistics links.

[0042] The following example will provide a more detailed explanation of the above technical solution: like Figures 1-8 As shown, Figure 8The prototype made for this application was tested. First, fresh leafy greens were fed into the quantitative dispensing mechanism 3 of the device. This mechanism uses a dispensing hopper equipped with multiple weighing sensors. When the leafy greens are added to the hopper, the weighing sensors monitor the weight of the greens in real time. Once the preset quantitative value is reached, the bottom gate of the dispensing hopper automatically opens, smoothly unloading the quantitatively dispensed leafy greens onto the transmission mechanism 2 running below. The transmission mechanism 2 consists of a series of connected mesh baskets that circulate on guide rails, carrying the quantitatively dispensed leafy greens.

[0043] Subsequently, the transmission mechanism 2 carrying the leafy vegetables enters the foaming and cleaning mechanism 4. The foaming and cleaning mechanism 4 contains a cleaning solution. When the basket enters the cleaning area, the leafy vegetables are immersed in the cleaning solution, which is simultaneously sprayed and rinsed onto the vegetables through nozzles. The combined action of soaking and water flow effectively removes mud, pesticide residues, and microorganisms from the surface of the leafy vegetables. During the cleaning process, the cleaning solution is circulated, filtered, and replaced periodically to ensure cleaning effectiveness.

[0044] After washing, the transmission mechanism 2 conveys the clean leafy vegetables to the draining mechanism 5. The draining mechanism 5 uses an inclined vibrating screen. When the leafy vegetables are unloaded from the basket of the transmission mechanism 2 onto the vibrating screen, the vibration of the screen causes the vegetables to tumble and quickly remove surface moisture. The inclined design facilitates water drainage and smooth movement of the leafy vegetables. The drained water is collected and discharged through the drainage trough at the bottom.

[0045] The drained leafy greens are conveyed to packaging mechanism 6. Packaging mechanism 6 uses an automatic weighing and packaging machine. The leafy greens are weighed again before entering the packaging machine to ensure that the final packaged weight meets the standard. Subsequently, the packaging machine automatically completes a series of operations such as forming, filling, and sealing the packaging bag, packaging the leafy greens into finished products of preset specifications.

[0046] Finally, the packaged leafy vegetables are conveyed out of the device via the discharge conveyor belt 7 and sent directly to a cold storage or logistics area to await further distribution. The entire process achieves continuous automated operation from leafy vegetable input to finished product output.

[0047] The integrated quantitative portioning, washing, and packaging device described in this embodiment effectively solves many problems existing in current leafy vegetable processing through its integrated design. Compared to traditional manual portioning methods, the quantitative portioning mechanism 3 of this device can achieve precise portioning of leafy vegetables, significantly improving the consistency of portion weight, thereby avoiding fluctuations in packaging specifications and enhancing product standardization. In the washing stage, the introduction of the foaming washing mechanism 4, combined with the conveying mechanism 2, achieves automated and efficient washing of leafy vegetables, reducing manual contact, lowering the risk of secondary contamination, and ensuring food safety. The setting of the draining mechanism 5 and the packaging mechanism 6 further improves the subsequent processing flow, ensuring that the washed leafy vegetables can be quickly drained and packaged, avoiding material accumulation and inefficiency. The configuration of the discharge conveyor belt 7 enables seamless connection of the entire production line, improving the automation level of the entire process. Overall, through the close cooperation of various functional modules, the device forms an efficient, hygienic, and standardized leafy vegetable processing solution, significantly improving production efficiency and product quality, and reducing labor costs and food safety risks.

[0048] In some embodiments described above in this application, an integrated device for quantitative portioning, washing, and packaging of leafy vegetables is proposed. This device includes a frame 1 and, mounted on the frame 1, a transmission mechanism 2, a quantitative portioning mechanism 3, a foaming and washing mechanism 4, a draining mechanism 5, a packaging mechanism 6, and a discharge conveyor belt 7. However, in practical applications, if the functional modules are arranged linearly along a single plane, the equipment may occupy a large area, and the connection between the washing and draining processes may not be tight enough, affecting overall processing efficiency and space utilization.

[0049] In this regard, this application further proposes that the transmission mechanism 2 adopts a double-layer circulation structure, the foaming cleaning mechanism 4 is set in the lower section of the transmission mechanism 2, the draining mechanism 5 is set in the upper layer of the transmission mechanism 2, the draining mechanism 5 is located at the upper end of the foaming cleaning mechanism 4, and the upper end of the foaming cleaning mechanism 4 is an open structure.

[0050] The transmission mechanism 2 adopts a double-layer circulation structure. The operating path or load-bearing structure of the transmission mechanism 2 is designed with upper and lower layers, forming a reciprocating path. This structure is achieved by setting two independent sets of guide rails and transmission chains on the frame 1, or by forming two working areas in the vertical direction through a continuous transmission chain. Its main purpose is to optimize the spatial layout, allowing for a more compact integration of mechanisms at different processing stages, and potentially enabling vertical material transport. The foaming and washing mechanism 4 is located in the lower section of the transmission mechanism 2. The washing process is arranged in the lower layer of the transmission mechanism 2, utilizing gravity or a specific conveying method to complete the washing of leafy vegetables in the lower section. For example, the lower section of the transmission mechanism 2 can be designed as an immersion washing tank, with the leafy vegetables entering the washing liquid along with the transmission mechanism 2, or a spray washing method can be used, with nozzles located above or to the side of the lower section of the transmission mechanism 2 to spray and wash the leafy vegetables. The draining mechanism 5 is located in the upper layer of the transmission mechanism 2. The draining process is arranged in the upper layer of the transmission mechanism 2, usually after washing, to dehydrate the washed leafy vegetables. The upper section of the transmission mechanism 2 connects to the inlet of the draining mechanism 5. After the leafy vegetables are washed from the lower layer, they are lifted to the upper layer for draining. Alternatively, the upper section itself integrates a structure with a draining function, such as a mesh belt with vibration or centrifugal function. The draining mechanism 5 is located above the foaming washing mechanism 4, clarifying the vertical spatial relationship between the washing and draining mechanisms. That is, the draining mechanism 5 is above the foaming washing mechanism 4, which usually means that after the leafy vegetables are washed, they are lifted to the top for draining, forming a vertical processing flow. The upper end of the foaming washing mechanism 4 has an open structure to facilitate the entry and exit of leafy vegetables from the washing mechanism, as well as to facilitate the replenishment and replacement of the washing solution and the maintenance of the equipment. The open structure is a completely open top, or has an openable cover, or is a channel connected to the inlet and outlet of the transmission mechanism 2, ensuring that the leafy vegetables can enter and exit smoothly.

[0051] The proposed solution cleverly incorporates a double-layer circulation structure into the transmission mechanism 2, placing the foaming and washing mechanism 4 in the lower section of the transmission mechanism 2, while the draining mechanism 5 is located in the upper section, above the foaming and washing mechanism 4. This vertically stacked layout ensures that after passing through the quantitative portioning mechanism 3, leafy vegetables are first transported by the transmission mechanism 2 to the lower section's foaming and washing mechanism 4 for cleaning. The open structure at the top of the foaming and washing mechanism 4 facilitates the entry and cleaning of leafy vegetables. After cleaning, the leafy vegetables are lifted by the transmission mechanism 2 to the upper section and directly enter the draining mechanism 5 above the foaming and washing mechanism 4 for filtration. This design not only effectively shortens the material transport path and achieves a tight connection between the cleaning and draining processes, but also significantly reduces the overall footprint of the equipment through vertical space utilization. The double-layer circulation characteristic of the transmission mechanism 2 ensures the continuity and efficiency of leafy vegetable processing, avoiding the space waste and process interruptions that may result from traditional linear layouts.

[0052] In one specific implementation, the transmission mechanism 2 consists of two sets of parallel guide rails 21 and transmission chains 22. One set of guide rails 21 and transmission chains 22 forms the lower circulation path, and the other set forms the upper circulation path. The arched bottom basket 23 passes through the foaming cleaning mechanism 4 in the lower circulation path. After cleaning, it is lifted to the upper circulation path through the vertical turning section of the transmission chain 22 and enters the draining mechanism 5. The foaming cleaning mechanism 4 is a top-open cleaning tank 42, which contains a foam generator 41 and in which the cleaning liquid 43 circulates. The draining mechanism 5 is an inclined, perforated conveyor belt 52 driven by a vibration motor 54. It receives the cleaned leafy vegetables from the outlet of the upper transmission mechanism 2 and performs vibration filtration.

[0053] Through the above technical solution, the device of this application can achieve compact integration and efficient connection of the leafy vegetable washing and draining processes. The combination of the double-layer circulation structure transmission mechanism 2 with the vertically stacked foaming washing mechanism 4 and draining mechanism 5 significantly optimizes the overall spatial layout of the equipment and effectively reduces the equipment's footprint. At the same time, this design allows leafy vegetables to be directly lifted to the top for draining after washing, simplifying the material flow path, improving processing efficiency and continuity, thereby enhancing the automation level and economic benefits of the entire leafy vegetable processing process.

[0054] In other embodiments, this application proposes an integrated device for quantitative portioning, washing, and packaging of leafy vegetables, wherein the transmission mechanism 2 is used to transport the quantitatively portioned leafy vegetables to the subsequent foaming and washing mechanism 4, draining mechanism 5, and packaging mechanism 6. However, in actual operation, if the design of the transmission mechanism 2 is unreasonable, the leafy vegetables may accumulate, scatter, or be damaged during transportation, especially in the stages where they need to come into contact with the washing liquid. Traditional flat or single-structure conveyor belts may not be able to effectively bear and drain water, thus affecting the washing effect and overall processing efficiency.

[0055] In this regard, this application further proposes a transmission mechanism 2 including a guide rail 21, a transmission chain 22, and an arched bottom mesh basket 23. The two guide rails 21 are arranged in parallel, and each guide rail 21 is a closed loop structure. A transmission chain 22 is provided in both guide rails 21. The transmission chain 22 is installed along the guide rail 21. The two ends of the arched bottom mesh basket 23 are installed at intervals on the two transmission chains 22. The arched bottom mesh basket 23 can move along the guide rail 21 with the transmission chain 22. The two ends of the arched bottom mesh basket 23 are rotatably connected to the transmission chain 22.

[0056] The guide rail 21 is used to guide and support the mechanical components of the moving parts. The guide rail 21 can take various forms, such as U-shaped channel steel, rectangular steel pipe, or specially made plastic profiles. Its material is typically chosen to be wear-resistant and corrosion-resistant metal or polymer material to adapt to humid or corrosive cleaning fluid environments. The drive chain 22 is a flexible transmission component that transmits power and motion by connecting chain links and meshing with sprockets. Its function is to provide continuous traction force, driving the components connected to it to perform cyclical motion. The drive chain 22 can adopt various structural forms such as roller chains, sleeve chains, or plate chains. Its material is typically stainless steel or corrosion-resistant alloy steel to ensure good durability and reliability in humid environments. The arched bottom basket 23 is a container with an arc-shaped bottom and a mesh structure. Its arched design helps to support and turn leafy vegetables, while the mesh structure allows liquid to pass through quickly, achieving good drainage. The arched bottom basket 23 is made of stainless steel wire mesh, plastic mesh, or perforated metal plate. Its mesh size and shape can be optimized according to the type of leafy vegetables and washing requirements to prevent leakage or jamming. The two guide rails 21 are arranged in parallel, meaning they are equidistant and oriented in space. This arrangement ensures the stability and balance of the drive chain 22 and the arched bottom basket 23 during movement, preventing tilting or deviation from the predetermined path and guaranteeing smooth leafy vegetable transport. Each guide rail 21 forms a closed loop, connecting its starting and ending points to form a continuous circular path. This closed-loop design allows the drive chain 22 to continuously circulate, enabling continuous transport and processing of leafy vegetables. The presence of a drive chain 22 within each of the two guide rails 21 provides stronger load-bearing capacity and more stable synchronous movement, ensuring even force distribution on both sides of the arched bottom basket 23 during movement. The installation of the drive chain 22 along the guide rail 21 means that the drive chain 22 is placed inside the guide rail 21 or arranged along the path of the guide rail 21. This installation method allows the guide rail 21 to provide support and guidance for the drive chain 22, reducing friction and wear during operation. The arched bottom basket 23 is installed at intervals on two drive chains 22, meaning that the two sides of each arched bottom basket 23 are rotatably connected to two parallel drive chains 22, arranged at a certain interval on the drive chains 22. This installation method allows the arched bottom basket 23 to be synchronously driven by the two drive chains 22, forming a continuous conveying unit. The ability of the arched bottom basket 23 to move along the guide rail 21 with the drive chain 22 means that the arched bottom basket 23, as the load of the drive chain 22, is displaced along the path defined by the guide rail 21 under the drive of the drive chain 22. This achieves automated and continuous conveying of leafy vegetables from one processing stage to the next.The rotatable connection between the two ends of the arched bottom basket 23 and the drive chain 22 means that the arched bottom basket 23 is connected to the drive chain 22 through rotatable connectors (such as pins, hinges or universal joints). This rotatable connection allows the arched bottom basket 23 to swing or tilt relative to the drive chain 22 at a certain angle during movement, which provides the necessary flexibility and adaptability for subsequent washing, draining and other operations.

[0057] The transmission mechanism 2 of this application achieves stable and continuous conveying of leafy vegetables through its ingenious structural design. Specifically, two parallel guide rails 21 provide a stable framework and precise movement path for the entire conveying system. Each guide rail 21 is designed as a closed-loop structure, ensuring that the transmission chain 22 can perform uninterrupted cyclical movement. The two transmission chains 22 are respectively installed inside their respective guide rails 21, forming a dual-drive, dual-support transmission system, which significantly enhances the system's stability and load-bearing capacity. The two ends of the arched bottom basket 23 are firmly installed on the two transmission chains 22 at intervals and are rotatably connected. When the transmission chain 22 moves cyclically along the guide rail 21 under the action of driving force, the arched bottom basket 23 moves synchronously, thereby smoothly conveying the quantitatively portioned leafy vegetables from the quantitative portioning mechanism 3 to the foaming and washing mechanism 4, the draining mechanism 5, and the packaging mechanism 6. The rotating connection of the arched bottom basket 23 allows it to flexibly adjust its posture during specific processing stages (such as immersion in washing liquid or tilting for draining), while its arched bottom and mesh structure ensure that leafy vegetables do not easily accumulate or scatter during transportation, and effectively allow for liquid penetration and drainage. This collaborative working method enables the transmission mechanism 2 to overcome the problems of poor stability, low efficiency, and easy damage to leafy vegetables that may be encountered in traditional conveying methods during leafy vegetable processing, providing a reliable material flow for subsequent washing, draining, and packaging stages.

[0058] In one specific implementation, the transmission mechanism 2 adopts the following structure. The guide rails 21 are made of corrosion-resistant stainless steel U-shaped channel steel, with their inner walls precision-machined to reduce friction. Two U-shaped channel steel guide rails 21 are arranged in parallel and fixed by a support structure on the frame 1, forming a horizontal or slightly inclined closed-loop path. Inside each U-shaped channel steel guide rail 21, a roller drive chain 22 consisting of stainless steel links and rollers is installed. The drive chain 22 is driven by a sprocket, which is powered by a motor (not shown). The arched bottom basket 23 is welded from food-grade stainless steel wire mesh, with a semi-circular bottom and a mesh diameter of approximately 5 mm to ensure that leafy vegetables do not leak out and that washing liquid can pass through smoothly. Connecting lugs are welded to both sides of each arched bottom basket 23. These lugs are hinged to specific links on the drive chain 22 via stainless steel pins, thus achieving a rotatable connection. Multiple arched bottom baskets 23 are arranged at equal intervals along the drive chain 22, for example, one every 20 cm, forming a continuous conveying queue. When the drive chain 22 is driven, these arched bottom baskets 23 move smoothly along the path of the guide rail 21, transporting leafy vegetables from one workstation to the next.

[0059] Through the above technical solution, the transmission mechanism 2 adopts a combined design of guide rail 21, transmission chain 22, and arched bottom mesh basket 23, effectively solving problems such as poor stability, easy accumulation, and incomplete washing and draining that may occur during the transportation of leafy vegetables. The configuration of parallel closed-loop guide rail 21 and double transmission chain 22 ensures the smoothness and continuity of leafy vegetable transportation, avoiding shaking and scattering of leafy vegetables during transportation. The unique structure of the arched bottom mesh basket 23 not only effectively supports leafy vegetables and prevents them from accumulating, but its mesh design also greatly promotes the penetration of washing liquid and drainage efficiency. In addition, the rotatable connection between the arched bottom mesh basket 23 and the transmission chain 22 allows the basket to tilt flexibly in specific processing areas, further optimizing the soaking and draining effect of leafy vegetables, thereby significantly improving the automation level and processing efficiency of the entire quantitative portioning and washing packaging integrated device, and ensuring the cleanliness and integrity of leafy vegetables.

[0060] The spacing can be adjusted by installing the baskets at preset connection points on the drive chain 22 or by using adjustable connectors. Multiple arched bottom baskets 23 move cyclically along the guide rail 21. Driven by the drive chain 22, they move continuously and repeatedly along the preset closed-loop guide rail 21. This cyclical movement ensures that leafy vegetables are continuously received from the quantitative portioning mechanism 3, and sequentially pass through the foaming and washing mechanism 4, the draining mechanism 5, and finally reach the packaging mechanism 6, achieving automation and continuity of the entire processing flow.

[0061] This application utilizes multiple arched bottom mesh baskets 23 spaced apart between two transmission chains 22, allowing them to circulate along guide rails 21, thus enabling the transmission mechanism 2 to form a continuous conveying carrier. When the quantitative portioning mechanism 3 places the quantitatively portioned leafy vegetables into one of the arched bottom mesh baskets 23, the basket moves away from below the quantitative portioning mechanism 3 as the transmission chain 22 moves. Simultaneously, the next empty arched bottom mesh basket 23 is promptly placed below the quantitative portioning mechanism 3, ready to receive the next batch of leafy vegetables. This continuous, intermittent conveying method ensures that leafy vegetables are continuously received from the quantitative portioning mechanism 3 and orderly conveyed to the foaming and washing mechanism 4 for washing, then to the draining mechanism 5 for filtration, and finally into the packaging mechanism 6. The cyclical movement of multiple arched bottom mesh baskets 23 allows the entire leafy vegetable processing flow to proceed continuously, avoiding processing interruptions or efficiency bottlenecks caused by single or small quantities of carriers. This design enables the transmission mechanism 2 to efficiently carry and transfer leafy vegetables, providing a stable material flow for subsequent washing, draining and packaging processes, thereby significantly improving the automation level and production efficiency of the entire integrated device.

[0062] In one specific implementation, the two drive chains 22 of the transmission mechanism 2 adopt standard industrial chains, with connecting lugs installed at preset intervals. The two ends of multiple arched bottom mesh baskets 23 are rotatably connected to these connecting lugs via pins or bolts, thus achieving spaced installation. For example, an arched bottom mesh basket 23 is installed every five chain links, or the installation interval is adjusted according to actual processing capacity requirements. Driven by the drive chains 22, these arched bottom mesh baskets 23 circulate along guide rails 21 made of U-shaped channel steel or high-polymer wear-resistant material. The closed-loop design of the guide rails 21 ensures that the arched bottom mesh baskets 23 can move from the beginning to the end of the device, complete the conveying task of leafy vegetables, and then return to the beginning, forming a continuous material circulation path.

[0063] By employing the aforementioned technical solution, multiple arched bottom baskets 23, installed at intervals and moving cyclically within the transmission mechanism 2, can significantly improve the conveying efficiency and continuity of leafy vegetables. This design avoids waiting and interruptions that may occur when handling single or small quantities of vegetables, ensuring that leafy vegetables can continuously enter the transmission mechanism 2 from the quantitative portioning mechanism 3 and sequentially flow to subsequent washing, draining, and packaging stations. This not only enhances the automation level of the entire integrated device and reduces manual intervention but also effectively increases the overall processing capacity and production efficiency of leafy vegetables through continuous material flow. This allows the device to adapt to large-scale leafy vegetable processing needs, thereby optimizing the integrated processing of quantitative portioning, washing, and packaging of leafy vegetables.

[0064] In one specific implementation, the tail end of the transmission mechanism 2 is provided with a flipping rod 8, which is used to limit the arched bottom net basket 23. When the arched bottom net basket 23 rotates with the transmission mechanism 2 to the upper end of the draining mechanism 5, the flipping rod 8 limits one side of the arched bottom net basket 23, and the arched bottom net basket 23 tilts and rotates, thereby pouring the leafy vegetables in the arched bottom net basket 23 onto the draining mechanism 5. After the arched bottom net basket 23 passes around the flipping rod 8, it returns to its original state under the action of gravity.

[0065] In some embodiments described above in this application, a device for quantitative portioning, washing, and packaging of leafy vegetables is proposed, wherein the quantitative portioning mechanism 3 is used to quantitatively sieve the leafy vegetables and then transfer them to the transmission mechanism 2. However, in actual operation, the irregular shape of leafy vegetables can easily lead to inaccurate quantitative portioning or uneven transmission, affecting the efficiency of subsequent washing and packaging.

[0066] In this regard, this application further proposes the specific structure of the quantitative dispensing mechanism 3. The quantitative dispensing mechanism 3 is a component used for the precise measurement and distribution of leafy vegetables. Its core function is to ensure that the amount of leafy vegetables transferred to the transmission mechanism 2 remains consistent each time. The mechanism employs various measurement principles, such as those based on volume, weight, or counting. The funnel-shaped feed hopper 31 is a container used for temporarily storing and guiding the leafy vegetables. It typically has a structure that is wider at the top and narrower at the bottom to utilize gravity to promote the downward flow of the leafy vegetables. The hopper body is the main structure of the funnel-shaped feed hopper 31, providing support and protection for the internal components and ensuring the airtightness of the leafy vegetables during the dispensing process. The drive motor is a device that provides mechanical power, driving the dispensing hopper 32 to rotate, thereby achieving the periodic dispensing of leafy vegetables. The motor can be selected from different types depending on the requirements, such as a stepper motor for precise position control or a servo motor for providing high torque and speed control. The output shaft of the drive motor is the component that transmits the rotational power of the motor; the dispensing hopper 32 obtains driving force through the output shaft. The dispensing hopper 32 is the unit that directly contacts and dispenses leafy vegetables. Its design shape and volume determine the amount of leafy vegetables dispensed each time. These dispensing hoppers 32 are mounted on the output shaft in a circumferential array to ensure continuous and quantitative dispensing. The inlet at the top of the funnel-shaped feed box 31 is the entrance for leafy vegetables into the quantitative dispensing mechanism 3, and its size and position should facilitate the loading of leafy vegetables. The outlet at the bottom of the funnel-shaped feed box 31 is the exit for the dispensed leafy vegetables from the quantitative dispensing mechanism 3, and its position corresponds to the transmission mechanism 2 to achieve smooth transfer of leafy vegetables. The dispensing hopper 32 can receive leafy vegetables, meaning that its structural design can effectively scoop leafy vegetables from the funnel-shaped feed box 31. Driven by the motor, the dispensing hopper 32 rotates, placing the received leafy vegetables through the outlet onto the transmission mechanism 2. This is the core action of the entire quantitative dispensing process. By precisely controlling the rotation speed and the volume of the hopper, the quantitative transfer of leafy vegetables is achieved.

[0067] The solution proposed in this application effectively solves the problems of inaccurate quantitative portioning and unsmooth transmission of leafy vegetables by specifying the quantitative portioning mechanism 3 as a structure comprising a funnel-shaped feeding box 31 and a distribution hopper 32. Specifically, the leafy vegetables first enter the box body through the inlet at the upper end of the funnel-shaped feeding box 31. The box structure of the funnel-shaped feeding box 31 can effectively collect and guide the leafy vegetables, ensuring their stable flow to the working area of ​​the distribution hopper 32. Inside the box body, the drive motor drives multiple distribution hoppers 32 in a circular array to rotate through its output shaft. When the distribution hopper 32 rotates into the funnel-shaped feeding box 31, it can receive and hold a certain amount of leafy vegetables. As the drive motor continues to rotate, the distribution hopper 32 containing leafy vegetables is brought to the outlet position at the lower end of the funnel-shaped feeding box 31. At this position, the distribution hopper 32 releases the leafy vegetables it holds, allowing them to fall accurately onto the transmission mechanism 2 through the outlet. This periodic receiving, rotating, and releasing process allows leafy vegetables to be portioned into preset quantities and stably and continuously transported to the transmission mechanism 2. Compared to the general quantitative screening in the basic scheme, this scheme achieves precise control and automation of the leafy vegetable portioning process through clearly defined structural components and a collaborative operation mechanism. This ensures the uniformity of material supply in subsequent cleaning and packaging stages, significantly improving the operating efficiency and product quality of the entire integrated device.

[0068] As a specific implementation, the funnel-shaped feeding box 31 adopts a conical or pyramidal bottom design to facilitate the smooth descent of leafy vegetables. Its body is made of food-grade polypropylene or stainless steel to meet hygiene standards. The drive motor is a DC brushless motor with a reducer, whose speed can be precisely adjusted by a controller to adapt to different types of leafy vegetables and the required portion sizes. The output shaft of the drive motor is vertically mounted at the center of the funnel-shaped feeding box 31. Eight dispensing hoppers 32 are evenly fixed on the output shaft, and the volume of each dispensing hopper 32 is calibrated to ensure that the weight or volume of leafy vegetables dispensed each time is within the allowable error range. The inlet is designed as a wide rectangular opening, facilitating batch feeding of leafy vegetables manually or via an upstream conveyor belt. The outlet is a narrow, elongated opening that matches the width of the transmission mechanism 2, ensuring that the leafy vegetables fall accurately into the carrying unit of the transmission mechanism 2. When the drive motor starts, the feed hopper 32 rotates with the output shaft, scoops up leafy vegetables inside the funnel-shaped feed box 31, and pours the leafy vegetables onto the transmission mechanism 2 when it rotates above the discharge port, thus completing one quantitative portioning.

[0069] Through the above technical solution, the quantitative portioning mechanism 3 adopts a combination of a funnel-shaped feeding box 31 and a circular array of distributing hoppers 32, which enables precise and controllable quantitative portioning of leafy vegetables. The funnel-shaped feeding box 31 ensures continuous supply and effective guidance of leafy vegetables, avoiding blockage or accumulation during the portioning process. The distributing hoppers 32, driven by a motor, periodically receive and release leafy vegetables, overcoming the problem of uneven portioning caused by irregular leafy vegetable shapes and ensuring a relatively consistent amount of leafy vegetables transferred to the transmission mechanism 2 each time. This structural design significantly improves the accuracy of quantitative portioning and the stability of transmission, thereby providing a uniform material flow for the subsequent foaming and washing mechanism 4 and packaging mechanism 6, and enhancing the automation level and processing efficiency of the entire integrated device.

[0070] In other embodiments, this application proposes an integrated device for quantitative portioning, washing, and packaging of leafy vegetables. The quantitative portioning mechanism 3 includes a funnel-shaped feeding box 31 and a dispensing hopper 32. The dispensing hopper 32 receives leafy vegetables fed into the upper inlet of the funnel-shaped feeding box 31. Driven by a motor, the dispensing hopper 32 rotates, transferring the received leafy vegetables through the lower outlet of the funnel-shaped feeding box 31 onto the transmission mechanism 2. However, during the receiving and transfer of leafy vegetables by the dispensing hopper 32, improper structural design may cause the leafy vegetables to spill or become unstable during transfer, thus affecting the accuracy and efficiency of quantitative portioning.

[0071] To address this, this application further proposes that the dispensing container 32 has a U-shaped structure, with the U-shaped structure used to collect leafy vegetables. The dispensing container 32 is designed as a U-shaped structure, which refers to a container shape with a bottom and two upward-extending walls on both sides, its cross-section resembling the letter "U". This structure provides an open top for receiving materials, while its side walls effectively enclose and support the internal materials. For example, the U-shaped structure is formed by bending a single-piece sheet, or by welding or riveting multiple sheets. Since its interior is used to collect leafy vegetables, the size, depth, and surface treatment of the U-shaped structure must be adapted to the physical characteristics of the leafy vegetables to ensure that they can be collected and carried stably and intact. For example, the inner surface of the U-shaped structure uses a smooth material or is polished to reduce friction and adhesion of the leafy vegetables during collection and unloading.

[0072] Based on the aforementioned quantitative dispensing mechanism 3, its working principle is further optimized when the dispensing hopper 32 is specifically designed as a U-shaped structure. During the operation of the quantitative dispensing mechanism 3, the leafy vegetables placed into the upper inlet of the funnel-shaped feeding box 31 fall into the rotating dispensing hopper 32 below. The U-shaped dispensing hopper 32, with its open top, can efficiently receive the leafy vegetables from the funnel-shaped feeding box 31. Simultaneously, the upward-extending sidewalls of the U-shaped structure effectively enclose and support the collected leafy vegetables, preventing them from spilling due to inertia or vibration as the dispensing hopper 32 rotates with the drive motor. This structure ensures that each dispensing hopper 32 can stably carry a predetermined amount of leafy vegetables, thereby improving the accuracy of quantitative dispensing. When the dispensing hopper 32 rotates to the lower outlet of the funnel-shaped feeding box 31, its U-shaped structure, in conjunction with tilting or flipping actions, enables the leafy vegetables to be smoothly and completely unloaded onto the transmission mechanism 2. In this way, the U-shaped material distribution bag 32 works in concert with the funnel-shaped feeding box 31 and the drive motor to ensure the stability and accuracy of the quantitative portioning process of leafy vegetables.

[0073] As a specific implementation, the U-shaped structure of the distribution bag 32 is integrally injection molded from food-grade polypropylene (PP) material to ensure its hygiene and durability. The U-shaped structure is designed with a slightly curved bottom and upward-sloping side walls to facilitate the smooth sliding of leafy vegetables into and out. For example, the opening width of the U-shaped structure is set to approximately 180 mm, and the depth is set to approximately 120 mm to accommodate different types and sizes of leafy vegetables. To further reduce the adhesion of leafy vegetables, the inner surface of the U-shaped structure undergoes a low-friction treatment, such as using a frosted or textured surface, or adding an anti-adhesion agent to the material.

[0074] By employing the aforementioned technical solution, the material distribution container 32 is designed with a U-shaped structure, effectively addressing the issues of leafy vegetables easily spilling and being difficult to stably collect during quantitative portioning. The U-shaped structure provides ample load-bearing and containment space, ensuring the stability of leafy vegetables during receiving, transfer, and unloading, and significantly reducing material loss. This improves the accuracy and consistency of quantitative portioning, thereby enhancing the overall efficiency of the device and the quality of leafy vegetable processing.

[0075] In some other embodiments, this application proposes an integrated device for quantitative portioning, washing, and packaging of leafy vegetables. The device includes a frame 1 and a transmission mechanism 2, a quantitative portioning mechanism 3, a foaming and washing mechanism 4, a draining mechanism 5, a packaging mechanism 6, and a discharge conveyor belt 7, all mounted on the frame 1. The quantitative portioning mechanism 3 is located at the beginning of the transmission mechanism 2 and is used to quantitatively sieve the leafy vegetables before transferring them to the transmission mechanism 2. The foaming and washing mechanism 4 is installed on one side of the transmission mechanism 2 and is used to wash the quantitatively portioned leafy vegetables on the transmission mechanism 2. The draining mechanism 5 is located at the end of the transmission mechanism 2 and is used to drain the washed leafy vegetables. The packaging mechanism 6 is installed at the outlet end of the draining mechanism 5 and is used to package the drained leafy vegetables. The discharge conveyor belt 7 is installed at the outlet of the packaging mechanism 6 and is used to transport the packaged leafy vegetables. The quantitative portioning mechanism 3 includes a funnel-shaped feed box 31 and a distribution hopper 32. A drive motor is installed inside the funnel-shaped feed box 31, and multiple distribution hoppers 32 are arranged in a circular array on the output shaft of the drive motor. The dispensing hopper 32 can receive leafy vegetables put into the upper inlet of the funnel-shaped feeding box 31, and, driven by the motor, put the received leafy vegetables into the transmission mechanism 2 through the lower outlet of the funnel-shaped feeding box 31. The dispensing hopper 32 has a U-shaped structure, and the U-shaped structure is used to store leafy vegetables.

[0076] In some embodiments described above, a device for quantitative portioning, cleaning, and packaging of leafy vegetables is proposed. Its transmission mechanism 2 transports the leafy vegetables to a foaming cleaning mechanism 4 for cleaning via a guide rail 21, a transmission chain 22, and an arched bottom mesh basket 23. However, in actual cleaning processes, ensuring that the leafy vegetables are fully immersed in the cleaning solution and thoroughly cleaned, while effectively managing the cleanliness of the cleaning solution, are key challenges in improving cleaning effectiveness and equipment operating efficiency.

[0077] In this regard, this application further proposes a foaming cleaning mechanism 4 including a foam generator 41 and a cleaning tank 42. The foam generator 41 is located inside the cleaning tank 42, which is filled with cleaning liquid. The cleaning tank 42 has openings on both sides. An arched bottom mesh basket 23 is driven by a transmission mechanism 2 to enter the cleaning tank 42 from one opening and exit from the other. The foam generator 41 vibrates and sprays the cleaning liquid 43 onto the leafy vegetables inside the arched bottom mesh basket 23 of the transmission mechanism 2 to clean the leafy vegetables. Preferably, the guide rail 21 is located at a low height inside the cleaning tank 42. The height of the arched bottom basket 23 on the outer sides of the cleaning tank 42 is lower than the openings on both sides of the cleaning tank 42. When the arched bottom basket 23 moves into the cleaning tank 42 with the guide rail 21, the bottom of the arched bottom basket 23 contacts the opening and tilts. As the arched bottom basket 23 moves into the cleaning tank 42, the leafy vegetables in the arched bottom basket 23 are immersed in the cleaning solution 43 in the cleaning tank 42. The cleaning tank 42 is also equipped with a water exchange port for circulating and replacing the cleaning solution 43 in the cleaning tank 42 to ensure the cleanliness of the cleaning solution 43 (clean water).

[0078] The foaming cleaning mechanism 4 is the core component of the device responsible for cleaning leafy vegetables. Its main function is to remove mud, pesticide residues, and microorganisms from the surface of the vegetables through physical and chemical processes. This can be achieved through various combinations, including but not limited to spraying, soaking, and ultrasonic cleaning. The foam generator 41 is used to generate foam with a cleaning effect or to create cavitation in the cleaning liquid 43 through vibration, thereby enhancing the cleaning effect. The foam generator 41 is a combination of an air pump and a porous diffuser, injecting air into the cleaning liquid 43 to generate bubbles; or an ultrasonic generator, which generates microbubbles in the cleaning liquid 43 through high-frequency vibration and causes them to burst, creating impact force to remove dirt. The cleaning tank 42 is the container that holds the cleaning liquid 43 and performs the cleaning operation. The cleaning tank 42 is usually made of corrosion-resistant and easy-to-clean materials, such as food-grade stainless steel or high-molecular polymers. Its structural design must consider the volume of the cleaning liquid 43, the flow path of the leafy vegetables, and the circulation and discharge of the cleaning liquid 43. The cleaning liquid 43 is the liquid medium used to clean the leafy vegetables. The cleaning solution 43 is purified water, an aqueous solution containing food-grade detergent, or a diluted solution containing disinfectants such as sodium hypochlorite. Its selection depends on the type of leafy vegetable, the degree of contamination, and the cleaning standards. The openings on both sides of the cleaning tank 42 serve as passageways for the arched bottom mesh basket 23 to enter and exit the cleaning tank 42. The design of the openings must ensure that the arched bottom mesh basket 23 can pass through smoothly while minimizing the spillage of the cleaning solution 43. The shape and size of the openings should match the geometry of the arched bottom mesh basket 23. The guide rail 21 is positioned at a height lower than the outer sides of the washing tank 42. The bottom of the arched bottom mesh basket 23 on the guide rail 21 is lower than the openings on both sides of the washing tank 42. When the arched bottom mesh basket 23 moves into the washing tank 42 with the guide rail 21, its bottom contacts the opening, causing it to tilt. As the basket moves further into the washing tank 42, the leafy vegetables inside are immersed in the washing solution 43. This series of structural features constitutes a unique leafy vegetable soaking mechanism. By adjusting the relative height of the guide rail 21 inside and outside the washing tank 42, the bottom of the arched bottom mesh basket 23 contacts the edge of the opening first when it enters the washing tank 42, causing the basket to tilt and guiding the leafy vegetables to gradually immerse in the washing solution 43. This design ensures that the leafy vegetables can fully contact the washing solution 43 during the washing process, achieving thorough soaking and cleaning. The cleaning tank 42 is also equipped with a water exchange port for circulating and replacing the cleaning solution 43 to maintain its cleanliness. The water exchange port is either an overflow port, which, together with the water inlet, continuously replenishes fresh cleaning solution 43, allowing dirty cleaning solution 43 to be discharged from the overflow port; or a circulation system with a pump and filter device, which draws out the cleaning solution 43, filters it, and then sends it back to the cleaning tank 42, while periodically replenishing it with fresh cleaning solution 43.

[0079] The solution proposed in this application designs the foaming cleaning mechanism 4 as a structure comprising a foam generator 41 and a cleaning tank 42, and cleverly utilizes the relative height relationship between the guide rail 21 of the transmission mechanism 2 and the cleaning tank 42 to achieve effective soaking and thorough cleaning of leafy vegetables during the cleaning process. Specifically, when the quantitatively portioned leafy vegetables are carried by the arched bottom mesh basket 23 and moved to the foaming cleaning mechanism 4 by the transmission mechanism 2, the arched bottom mesh basket 23 enters from an opening on one side of the cleaning tank 42. Since the guide rail 21 is lower inside the cleaning tank 42 than outside, and the bottom of the arched bottom mesh basket 23 is lower than the openings on both sides of the cleaning tank 42, the arched bottom mesh basket 23 tilts when entering the cleaning tank 42, thereby guiding the leafy vegetables inside to gradually immerse themselves in the cleaning solution 43 inside the cleaning tank 42. While the leafy vegetables are soaking in the cleaning solution 43, the foam generator 41 continues to work, vibrating and spraying the cleaning solution 43 or generating foam to deeply clean the leafy vegetables. This method of soaking combined with vibrating spraying effectively removes stubborn stains and microorganisms from the surface of leafy vegetables. Furthermore, the water exchange port in the washing tank 42 allows for the circulation and replacement of the washing solution 43, ensuring that the solution remains clean at all times, thus preventing secondary contamination and maintaining a consistently high-efficiency cleaning effect. The entire process allows the leafy vegetables to undergo a continuous, efficient, and hygienic cleaning process while being transported.

[0080] In one specific implementation, the foaming cleaning mechanism 4 employs a rectangular cleaning tank 42 made of food-grade stainless steel. An array of multiple ultrasonic foam generators 41 is installed at the bottom of the tank. These foam generators 41 generate a large number of microbubbles in the cleaning liquid 43 through high-frequency vibration, creating a cavitation effect that physically cleans the leafy vegetables. A rectangular opening is provided on each side wall of the cleaning tank 42, corresponding to the inlet and outlet directions of the transmission mechanism 2. The edges of the openings are rounded to avoid scratching the arched bottom mesh basket 23. The lowest point of the guide rail 21 inside the cleaning tank 42 is designed to be approximately 10-15 cm lower than the guide rail 21 outside the cleaning tank 42. Furthermore, the lower edges of the openings on both sides of the cleaning tank 42 are higher than the lowest point of the guide rail 21 inside the tank. This ensures that when the arched bottom mesh basket 23 enters the cleaning tank 42, its leading edge first contacts the lower edge of the opening, causing the basket to tilt and the leafy vegetables to slide into the cleaning liquid 43. The cleaning liquid 43 is purified water that has undergone multi-stage filtration. The water exchange port of the cleaning tank 42 is designed as an overflow weir structure, located on the upper part of one side of the cleaning tank 42, while a fresh water replenishment port is set at the bottom of the other side. By continuously replenishing fresh water, the cleaning solution 43 is kept flowing and renewed, ensuring the cleanliness of the cleaning solution 43.

[0081] Through the above technical solutions, this device ensures that leafy vegetables are fully soaked and thoroughly cleaned during the washing process. The ingenious fit between the guide rail 21 and the opening of the washing tank 42 allows the arched bottom basket 23 to automatically tilt when entering the washing tank 42, ensuring the leafy vegetables are completely immersed in the washing solution 43. This solves the problems of uneven washing and insufficient contact between some leafy vegetables and the washing solution that may occur with traditional spray washing. The vibrating spraying or foaming action of the foam generator 41 further enhances the washing effect, more effectively removing dirt and impurities from the surface of the leafy vegetables. Furthermore, the design of the water exchange port ensures the continuous renewal and cleanliness of the washing solution 43, avoiding secondary pollution caused by repeated use. This significantly improves the washing quality and food safety level of the leafy vegetables, while also increasing washing efficiency and the hygiene standards of the equipment.

[0082] In some of the embodiments described above in this application, it is proposed that leafy vegetables need to be drained after washing. However, in actual operation, leafy vegetables often have a lot of water attached after washing, and the leaves are easy to stick together to form water clumps. This makes simple gravity draining or static filtration ineffective and difficult to achieve the ideal degree of dryness in a short time, thereby affecting the subsequent packaging quality and the shelf life of leafy vegetables.

[0083] like Figure 8 As shown, this application further proposes a draining mechanism 5 including a draining frame 53 and a perforated conveyor belt 52 disposed on the draining frame. The perforated conveyor belt 52 is inclined and driven by a vibration motor 54. The perforated conveyor belt 52 vibrates and filters the water from the washed leafy vegetables before conveying them to the packaging mechanism 6. Preferably, the perforated conveyor belt 52 is multi-stage, with multiple perforated conveyor belts 52 inclined and connected end to end. The leafy vegetables fall from the highest point of the first perforated conveyor belt 52 into the next perforated conveyor belt 52, and the tumbling action can accelerate the filtration effect. A drainage trough 51 is provided at the bottom of the draining frame 53 to drain the filtered water. In another embodiment, the vibration motor 54 drives the perforated conveyor belt 52 to rotate cyclically.

[0084] The draining mechanism 5 is a device for removing surface moisture from leafy vegetables, employing various methods such as centrifugal dehydration, air-drying dehydration, or mechanical vibration dehydration. In this application, it primarily achieves filtration through mechanical vibration. The draining frame 53 is the structural skeleton supporting the various components of the draining mechanism 5, made of corrosion-resistant materials such as stainless steel and aluminum alloy to adapt to humid working environments. The structural design of the draining frame 53 should ensure the stability and load-bearing capacity of the entire draining mechanism 5, and facilitate the installation and maintenance of other components. The perforated conveyor belt 52 is a conveyor belt with permeable holes, used to carry leafy vegetables and allow water to pass through. It is made of food-grade plastic, stainless steel mesh, or corrosion-resistant synthetic fiber materials. The hole size of the perforated conveyor belt 52 should be moderate, effectively filtering water while preventing leafy vegetables from leaking out. The inclined setting of the perforated conveyor belt 52 refers to the presence of a certain angle between its conveying surface and the horizontal plane. This inclination angle utilizes gravity to assist in water drainage and promotes the natural rolling and dispersion of leafy vegetables during conveying, avoiding accumulation. The tilt angle is adjusted according to the type and water content of the leafy vegetables to optimize filtration and conveying efficiency. The vibration motor 54 is a motor capable of generating periodic vibrations. It generates centrifugal force through the rotation of an eccentric block, causing vibrations in the connected structure. The vibration frequency and amplitude of the vibration motor 54 are adjusted as needed to adapt to the filtration requirements of different leafy vegetables. Vibration filtration refers to using mechanical vibration to remove water from the surface of the leafy vegetables under inertia and discharge it through the holes of the perforated conveyor belt 52. Vibration effectively breaks the water film tension on the surface of the leafy vegetables and causes them to continuously tumble during vibration, exposing more surface area, thereby improving filtration efficiency. The perforated conveyor belt 52 is multi-stage, meaning there are multiple interconnected or linked segments. This segmented design extends the filtration path and time for the leafy vegetables and allows for different vibration parameters or tilt angles at different stages to achieve more precise filtration control. Multiple perforated conveyor belts 52 are connected end-to-end at an incline, forming a continuous, stepped conveying path. This connection method ensures a smooth transition of leafy vegetables from one conveyor belt to the next, while maintaining the overall inclined filtration effect. As the leafy vegetables fall from the end (highest point) of one inclined perforated conveyor belt 52 to the beginning (lower point) of the next, a tumbling and impact motion occurs. This fall and tumbling helps to further shake off the water adhering to the leafy vegetables and disperse them, preventing clumping. The tumbling motion during the fall exposes different sides of the leafy vegetables, facilitating even water removal. Simultaneously, the tumbling increases the contact area between the leafy vegetables and the air, aiding in subsequent light air drying. Through the aforementioned multi-stage inclined setup, vibration, and the tumbling and falling of the leafy vegetables, the filtration efficiency and speed are significantly improved, resulting in a lower moisture content before entering the packaging mechanism 6. A drain trough 51 is located at the bottom of the drain frame 53 to collect and guide the water filtered from the perforated conveyor belt 52.The drainage trough 51 typically has a certain slope to concentrate and discharge the collected water, preventing water accumulation and secondary pollution, and it is connected to the external drainage system.

[0085] In practice, after being washed by the foaming and washing mechanism 4, the leafy vegetables are conveyed to the draining mechanism 5 via the arched bottom basket 23 of the transmission mechanism 2. The vegetables are then unloaded onto the inclined perforated conveyor belt 52. Driven by the vibration motor 54, the perforated conveyor belt 52 continuously vibrates. This vibration causes the leafy vegetables to shake and tumble during transport, breaking the surface tension of the water film and causing the water adhering to the vegetables to detach due to inertia and drain through the holes in the perforated conveyor belt 52. Simultaneously, the inclined design of the perforated conveyor belt 52 utilizes gravity to assist the downward flow of water and guides the leafy vegetables forward. To further improve the filtration effect, the perforated conveyor belt 52 is multi-stage, with multiple inclined perforated conveyor belts 52 connected end-to-end. When the leafy vegetables fall from the end of one perforated conveyor belt 52 to the beginning of the next, this falling and tumbling action allows the vegetables to be impacted again, further shaking off residual water and redispersing the vegetables, preventing accumulation from affecting filtration. The water discharged during the entire filtration process is collected and drained by the drainage trough 51 at the bottom of the draining frame 53, ensuring the cleanliness of the working area. Through this combination of multi-stage vibration, inclined conveying, and tumbling drop, the draining mechanism 5 can efficiently and thoroughly remove moisture from the surface of leafy vegetables, providing dried leafy vegetables for the subsequent packaging mechanism 6, significantly improving the automation and processing efficiency of the entire device.

[0086] The following is a specific example illustrating the configuration of the draining mechanism 5: The draining frame 53 is welded from food-grade 304 stainless steel, ensuring a robust structure capable of withstanding vibration loads. The perforated conveyor belt 52 is a modular mesh belt made of polypropylene (PP), with evenly distributed perforations on its surface, making it easy to clean and replace. The perforated conveyor belt 52 is divided into three levels, each approximately 1.5 meters long, with a width matching the width of the arched bottom basket 23 of the transmission mechanism 2. Each level of the perforated conveyor belt 52 is inclined at an angle of approximately 10-15 degrees and driven by an independent vibration motor 54. The vibration motor 54 is an eccentric block type vibration motor with an adjustable vibration frequency, for example, within the range of 500-1500 times / minute. When leafy vegetables fall from the end of the first level of the perforated conveyor belt 52 to the beginning of the second level, a drop of approximately 10-20 centimeters is created, causing the vegetables to tumble. Similarly, a similar drop exists from the second level to the third level. The drainage trough 51 at the bottom of the draining frame 53 is an integrally formed U-shaped stainless steel trough and is connected to the wastewater collection tank outside the device.

[0087] Through the above technical solution, the draining mechanism 5 effectively solves the problem of low draining efficiency caused by excessive residual water and easy sticking of leafy vegetables after washing. The multi-stage inclined perforated conveyor belt 52, combined with the drive of the vibration motor 54, ensures that the leafy vegetables are continuously vibrated and tumbled during transport, greatly enhancing the water removal efficiency. The falling of the leafy vegetables between different conveyor belt stages further promotes tumbling and dispersion, preventing clumping and ensuring that all surfaces of the leafy vegetables are thoroughly drained. Simultaneously, the design of the drainage trough 51 ensures that the filtered water can be discharged in a timely manner, avoiding secondary contamination. Therefore, this solution significantly improves the draining speed and thoroughness of leafy vegetables, providing dry and loose leafy vegetables for subsequent packaging, thereby ensuring packaging quality, extending the shelf life of leafy vegetables, and improving the automation level and production efficiency of the entire quantitative portioning, washing, and packaging integrated device.

[0088] In some of the embodiments described above in this application, an integrated device for quantitative portioning, washing, and packaging of leafy vegetables is proposed, including a packaging mechanism 6 for packaging the drained leafy vegetables. However, in actual operation, how to ensure that the drained leafy vegetables can be efficiently, accurately, and without damage fed into the packaging process and effectively sealed is a problem that needs further resolution.

[0089] In this regard, this application further proposes that the packaging mechanism 6 includes a pressure-sensitive conveyor belt 61 and a thermoplastic packaging machine 62. The pressure-sensitive conveyor belt 61 is installed at the beginning of the packaging mechanism 6 and is located at the bottom of the draining frame 53. The drained leafy vegetables enter the pressure-sensitive conveyor belt 61 and are packaged by the thermoplastic packaging machine 62.

[0090] Packaging mechanism 6 is the final stage of the entire system. Its main function is to perform final packaging of the washed and drained leafy vegetables, forming product units that are easy to store, transport, and sell. Pressure-sensitive conveyor belt 61 is a conveying device with pressure sensing or flexible conveying functions, used to receive and smoothly transport the drained leafy vegetables. Its function is to ensure that the leafy vegetables maintain their integrity when entering the packaging stage, avoiding damage caused by mechanical impact or improper transport. Pressure-sensitive conveyor belt 61 takes various forms; for example, it is a conveyor belt made of materials with a certain degree of elasticity and friction, or it integrates pressure sensors to achieve gentle transport and positioning of the leafy vegetables. Thermoplastic packaging machine 62 is a device that uses the heat-sealing principle to seal packaging materials, used for the final sealed packaging of the leafy vegetables conveyed on pressure-sensitive conveyor belt 61. Its function is to ensure the airtightness of the packaging, preventing the leafy vegetables from being contaminated or spoiled during storage and transportation. The thermoplastic packaging machine 62 employs various heat-sealing methods, such as a continuous heat-sealing machine that continuously seals the packaging film using heated rollers or heating belts, or an intermittent heat-sealing machine that intermittently seals specific areas of the packaging bag using heated plates. The pressure-sensitive conveyor belt 61 is installed at the beginning of the packaging mechanism 6, meaning it is the first contact point and conveying unit for leafy vegetables entering the packaging mechanism 6. This layout ensures that the leafy vegetables receive gentle and precise guidance and conveying at the initial stage of the packaging process, laying the foundation for subsequent packaging operations and ensuring smooth material flow. The pressure-sensitive conveyor belt 61 is located at the bottom of the draining frame 53, indicating that its position for receiving leafy vegetables corresponds to the discharge port of the draining mechanism 5, forming a smooth material flow path. This layout facilitates a smooth transition of leafy vegetables from the draining mechanism 5 to the packaging mechanism 6, reducing the risk of drop or accumulation during transport, thereby reducing the risk of damage and improving transport efficiency. Furthermore, its location at the bottom may also imply the use of gravity to assist the leafy vegetables in falling into the packaging mechanism 6. After being drained, the leafy greens enter the pressure-sensitive conveyor belt 61, a crucial step in the transition from washing and draining to packaging. The characteristics of the pressure-sensitive conveyor belt 61 ensure that the leafy greens are gently carried and transported upon receipt, avoiding secondary damage and providing a stable material flow for subsequent precise packaging. Packaging the drained leafy greens using the thermoplastic packaging machine 62 is the core operation for completing the packaging process. The thermoplastic packaging machine 62 heats and seals the packaging material to form a sealed package, effectively isolating it from the external environment, thereby extending the shelf life of the leafy greens and facilitating product transportation and sales. The packaging process achieves single or multiple individual packaging based on the quantitative portioning results of the leafy greens.

[0091] This application's solution, by introducing a pressure-sensitive conveyor belt 61 and a thermoplastic packaging machine 62, and optimizing their layout within the packaging mechanism 6, achieves efficient, flexible, and sealed packaging of drained leafy vegetables. Specifically, after the leafy vegetables are processed by the draining mechanism 5, the drained vegetables fall directly and smoothly onto the pressure-sensitive conveyor belt 61 located at the bottom of the draining frame 53. The pressure-sensitive conveyor belt 61 gently carries and transports the leafy vegetables, avoiding squeezing or damage during transport. Subsequently, the pressure-sensitive conveyor belt 61 precisely transports the leafy vegetables to the working area of ​​the thermoplastic packaging machine 62. The thermoplastic packaging machine 62 then automatically heat-seals the transported leafy vegetables according to preset packaging specifications, forming sealed packaging units. This design ensures that the entire process from draining to packaging is under control, reducing manual intervention and improving packaging efficiency and product quality.

[0092] In one specific implementation, the packaging mechanism 6 is configured such that: the pressure-sensitive conveyor belt 61 is made of a flexible material such as silicone or polyurethane, and its surface has a microporous structure to further reduce the friction between the leafy vegetables and the belt body, and allow a small amount of residual moisture to drain out. The pressure-sensitive conveyor belt 61 is driven by a servo motor to achieve precise speed control, ensuring that the leafy vegetables enter the thermoplastic packaging machine 62 at a constant speed. The thermoplastic packaging machine 62 is a vertical or horizontal automatic packaging machine equipped with photoelectric sensors to detect the position and quantity of the leafy vegetables, and automatically completes the bag making, filling, heat sealing and cutting of the packaging bags according to the detection results. For example, a roll film thermoplastic packaging machine is used, which continuously heat seals the packaging film through heating rollers to form individual packaging bags. The pressure-sensitive conveyor belt 61 is installed below the draining frame 53 and is connected to the discharge port of the draining mechanism 5 through an inclined chute or guide plate to ensure that the leafy vegetables can smoothly slide onto the pressure-sensitive conveyor belt 61.

[0093] Through the above technical solution, the drained leafy vegetables can be smoothly and gently conveyed via the pressure-sensitive conveyor belt 61, effectively avoiding mechanical damage that the leafy vegetables may suffer before packaging. The introduction of the thermoplastic packaging machine 62 ensures the sealing and efficiency of the packaging, significantly improving the shelf life and market competitiveness of the leafy vegetable products. This integrated packaging design not only simplifies the operation process and reduces labor costs, but also improves the automation level and production efficiency of the entire device, ensuring the quality and hygiene standards of the leafy vegetable products during the packaging process.

[0094] The above description is merely an embodiment of this application and is not intended to limit the scope of protection of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A device for quantitative portioning, washing, and packaging of leafy vegetables, characterized in that, The system includes a frame (1) and a transmission mechanism (2), a quantitative portioning mechanism (3), a foaming and washing mechanism (4), a draining mechanism (5), a packaging mechanism (6), and a discharge conveyor belt (7) installed on the frame (1). The quantitative portioning mechanism (3) is located at the beginning of the transmission mechanism (2) and is used to quantitatively sieve the leafy vegetables and then transfer them to the transmission mechanism (2). The foaming and washing mechanism (4) is installed on one side of the transmission mechanism (2) and is used to wash the quantitatively portioned leafy vegetables on the transmission mechanism (2). The draining mechanism (5) is located at the end of the transmission mechanism (2) and is used to filter the washed leafy vegetables. The packaging mechanism (6) is installed at the outlet end of the draining mechanism (5) and is used to package the filtered leafy vegetables. The discharge conveyor belt (7) is installed at the outlet of the packaging mechanism (6) and is used to transport the packaged leafy vegetables.

2. The integrated device for quantitative portioning, washing, and packaging of leafy vegetables according to claim 2, characterized in that, The transmission mechanism (2) adopts a double-layer circulation structure. The foaming cleaning mechanism (4) is set in the lower section of the transmission mechanism (2), and the draining mechanism (5) is set in the upper layer of the transmission mechanism (2). The draining mechanism (5) is located at the upper end of the foaming cleaning mechanism (4), and the upper end of the foaming cleaning mechanism (4) is an open structure.

3. The integrated device for quantitative portioning, washing, and packaging of leafy vegetables according to claim 3, characterized in that, The transmission mechanism (2) includes a guide rail (21), a transmission chain (22), and an arched bottom net basket (23). The two guide rails (21) are arranged in parallel, and each guide rail (21) is a closed loop structure. A transmission chain (22) is provided in both guide rails (21). The transmission chain (22) is installed along the guide rail (21). The two ends of the arched bottom net basket (23) are installed on the two transmission chains (22) at intervals. The arched bottom net basket (23) can move along the guide rail (21) with the transmission chain (22). The two ends of the arched bottom net basket (23) are rotatably connected to the transmission chain (22).

4. The integrated device for quantitative portioning, washing, and packaging of leafy vegetables according to claim 1, characterized in that, Multiple arched bottom net baskets (23) are installed at intervals between the two transmission chains (22), and the multiple arched bottom net baskets (23) move cyclically along the guide rail (21); a flipping rod (8) is provided at the tail end of the transmission mechanism (2) to limit the arched bottom net baskets (23).

5. The integrated device for quantitative portioning, washing, and packaging of leafy vegetables according to claim 5, characterized in that, The quantitative portioning mechanism (3) includes a funnel-shaped feeding box (31) and a distribution bag (32). The funnel-shaped feeding box (31) includes a box body, and a drive motor is installed inside the box body. Multiple distribution bags (32) are arranged in a circular array on the output shaft of the drive motor. The upper end of the funnel-shaped feeding box (31) is provided with a feeding port, and the lower end of the funnel-shaped feeding box (31) is provided with a discharging port. The distribution bag (32) can receive the leafy vegetables put into the upper feeding port of the funnel-shaped feeding box (31). As the motor drives the rotation, the distribution bag (32) puts the received leafy vegetables into the transmission mechanism (2) through the discharging port at the lower end of the funnel-shaped feeding box (31).

6. The integrated device for quantitative portioning, washing, and packaging of leafy vegetables according to claim 1, characterized in that, The distribution bag (32) has a U-shaped structure, and the U-shaped structure is used to store leafy vegetables.

7. The integrated device for quantitative portioning, washing, and packaging of leafy vegetables according to claim 7, characterized in that, The material distribution bag (32) includes multiple partitions arranged circumferentially on the rotating shaft, and the partitions are arc-shaped partitions.

8. The integrated device for quantitative portioning, washing, and packaging of leafy vegetables according to claim 1, characterized in that, The foaming cleaning mechanism (4) includes a foam generator and a cleaning tank (42). The foam generator is located inside the cleaning tank (42). The cleaning tank (42) is filled with cleaning liquid (43). The cleaning tank (42) has openings on both sides. The arched bottom basket (23) is driven by the transmission mechanism (2) to enter the cleaning tank (42) from one side opening and exit from the other side. The foam generator vibrates and sprays the cleaning liquid (43) onto the leafy vegetables in the arched bottom basket (23) of the transmission mechanism (2) to clean the leafy vegetables. The guide rail (21) is located inside the cleaning tank (42) at a height lower than that of the cleaning liquid. The height of the outer sides of the washing tank (42); the bottom of the arched bottom net basket (23) on the guide rail (21) is lower than the openings on both sides of the washing tank (42). When the arched bottom net basket (23) moves into the washing tank (42) with the guide rail (21), the bottom of the arched bottom net basket (23) contacts the opening. The arched bottom net basket (23) tilts. As the arched bottom net basket (23) moves into the washing tank (42), the leafy vegetables in the arched bottom net basket (23) are immersed in the washing liquid (43) in the washing tank (42). The washing tank (42) is also equipped with a water exchange port for circulating and replacing the washing liquid (43) in the washing tank (42).

9. The integrated device for quantitative portioning, washing, and packaging of leafy vegetables according to claim 1, characterized in that, The draining mechanism (5) includes a draining rack (53) and a perforated conveyor belt (52) set on the draining rack (53). The perforated conveyor belt (52) is set at an angle and is driven by a vibration motor. The perforated conveyor belt (52) will vibrate and filter the water from the washed leafy vegetables and then transport them to the packaging mechanism (6). Preferably, the perforated conveyor belt (52) is set in multiple stages, with multiple perforated conveyor belts (52) set at an angle and connected end to end. The leafy vegetables fall from the highest point of the first perforated conveyor belt (52) into the next perforated conveyor belt (52). A drainage trough (51) is provided at the bottom of the draining rack (53).

10. The integrated device for quantitative portioning, washing, and packaging of leafy vegetables according to claim 10, characterized in that, The packaging mechanism (6) includes a pressure-sensitive conveyor belt and a thermoplastic packaging machine. The pressure-sensitive conveyor belt is installed at the beginning of the packaging mechanism (6) and is located at the bottom of the drain rack (53). The drained leafy vegetables enter the pressure-sensitive conveyor belt. A cutting component (63) is provided on one side of the thermoplastic packaging machine.

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