A type of integrated machine for primary processing of leafy vegetables

Abstract

This invention discloses an integrated primary processing machine for leafy vegetables, comprising: a vertical frame and, vertically arranged from top to bottom, a de-yellowing and de-sanding module, a feeding and clamping module, a packaging module, and a root-removing and weighing module. The de-yellowing and de-sanding module includes an airflow de-sanding unit that removes sand using airflow, and a yellow leaf removal unit at the bottom of the airflow de-sanding unit that identifies and removes yellow leaves. The feeding and clamping module includes a vertical feeding port located at the center of the frame and at least one clamping unit for clamping the leafy vegetables. The leafy vegetables falling from the clamping unit enter the root-removing and weighing module, where the root-removing and weighing module cuts off the roots of the leafy vegetables using a root-removing component. Then, the packaging module automatically bundles the leafy vegetables. This invention automates the primary processing of leafy vegetables, solving problems such as low efficiency, high cost, large footprint, and unstable quality in traditional leafy vegetable processing.

Description

Technical Field

[0001] This invention relates to the field of vegetable processing technology, and more specifically, to an integrated machine for primary processing of leafy vegetables. Background Technology

[0002] The main technical challenges in leafy vegetable processing currently include the following: 1. In terms of efficiency and cost, under the manual processing mode, the average daily processing capacity of a single person is only 50-80kg. Traditional equipment also requires 2-3 people to cooperate, and the average daily processing capacity of a single machine is less than 1000kg. Moreover, labor costs account for 52%-68% of the total processing cost.

[0003] 2. In terms of space and adaptability, traditional horizontal equipment occupies an area of ​​2-3 square meters and requires separate washing tanks, sorting tables, and other areas. It can only handle leafy vegetables with a diameter of 8-12 cm and a height of 25-35 cm, failing to cover the entire growth cycle of leafy vegetables. A township cooperative reported that traditional equipment requires a separate 15 square meter processing area and cannot process tender or mature Chinese cabbage.

[0004] 3. Regarding quality and safety, the rate of missed detection of yellow leaves during manual sorting is 15%–22%, and the error in the length of removed roots reaches ±3cm; frequent manual contact leads to a 37% rate of exceeding the total bacterial count standard, and traditional washing methods also have detergent residue problems, with a residue rate of about 5%. Data from the National Center for Food Safety Risk Assessment in 2022 shows that under the traditional processing mode, the residue rate of mud and sand in leafy vegetables exceeds 10%, and the root residue often exceeds 1cm, which does not meet the "Standards for the Sale of Clean Vegetables".

[0005] 4. Energy consumption and environmental protection issues are prominent. Traditional water washing equipment consumes 10-15 tons of water per day and the power consumption of the whole machine reaches 4.8kW・h / 100kg; some equipment uses non-food grade materials, which poses a risk of heavy metal migration. Summary of the Invention

[0006] Technical problem to be solved by the invention: The purpose of this invention is to overcome the technical problems existing in the current leafy vegetable processing technology and provide an integrated machine for primary processing of leafy vegetables.

[0007] Technical Solution: To achieve the above objectives, the technical solution provided by this invention is as follows: A leafy vegetable primary processing integrated machine, comprising: a vertical frame and a de-yellowing and de-sanding module, a feeding and clamping module, a packaging module, and a root-removing and weighing module vertically arranged from top to bottom on the vertical frame; the de-yellowing and de-sanding module includes an airflow de-sanding unit for removing sand by airflow, and a yellow leaf removal unit at the bottom of the airflow de-sanding unit for identifying and removing yellow leaves; the feeding and clamping module includes a vertical feeding port located at the center of the frame, and at least one clamping unit for clamping the leafy vegetables; the leafy vegetables falling from the clamping unit enter the root-removing and weighing module, the root-removing and weighing module cuts off the roots of the leafy vegetables through a root-removing component, and then the packaging module automatically bundles the leafy vegetables.

[0008] As a further improvement of the present invention, the airflow desanding and yellow leaf removal units are driven by the same lead screw, descend synchronously and work in parallel along the circumference of the leafy vegetables. The airflow desanding unit generates annular airflow pointing towards the leafy vegetables through circumferentially distributed axial flow fans, which efficiently blows off the mud and sand. The yellow leaf removal unit rotates and scans around the leafy vegetables through gear transmission. The visual recognition unit mounted on it identifies yellow leaves in real time, and a high-speed steel cutter driven by a gear and rack mechanism is used to accurately remove them.

[0009] As a further improvement of the present invention, the feeding and clamping module includes multiple clamping units, which are arranged in a ring with a feeding port in the middle; each clamping unit includes a rotatable lifting section, the surface of which is covered with a food-grade flexible pad, and the leafy vegetables are lifted and released by rotation.

[0010] As a further improvement of the present invention, the number of clamping units is four, arranged in a cross shape; the lifting section is driven by a servo motor, and its clamping force is adjustable to adapt to leafy vegetables of different sizes and maturity.

[0011] As a further improvement of the present invention, the yellow leaf removal unit in the yellow leaf removal and mud removal module includes a camera and a retractable cutting blade; the airflow generating unit includes four axial flow fans, which are arranged around and pointed towards the center of the leafy vegetables to generate opposing airflows to blow away mud and sand.

[0012] As a further improvement of the present invention, the root removal component in the root removal weighing module includes two high-speed rotating cutters arranged opposite each other, and the distance between the high-speed rotating cutters is adjustable.

[0013] As a further improvement of the present invention, the root removal assembly also includes a servo control mechanism for adjusting the spacing of the high-speed rotating cutter.

[0014] As a further improvement of the present invention, the packaging module includes a rotatable cylindrical sleeve covered with binding material, which spirally binds the leafy vegetables during the upward movement of the root-removing and weighing module.

[0015] As a further improvement of the present invention, the packaging module also includes a cutting device for cutting the binding material.

[0016] This invention also provides a method for the initial processing of leafy vegetables, comprising the following steps: S1: Place the leafy vegetables into the feeding and clamping module in an upright position, and fix them in place by the clamping unit; S2: Activate the yellowing and sand removal module, identify and remove yellow leaves through the visual recognition unit, and remove sand from the surface of leafy vegetables through airflow. S3: The clamping unit releases the leafy vegetable, causing it to fall to the root-removing and weighing module; S4: The root-removing and weighing module removes the roots of leafy vegetables and weighs them in real time; S5: If the weighing result meets the preset standard, the packaging module will be started to automatically tie the leafy vegetables as they rise, thus completing the processing. Beneficial effects

[0017] 1. The integrated machine adopts a vertical four-layer ring structure, integrating the entire process of removing yellowing and mud, removing roots, weighing, and packaging, replacing traditional scattered equipment. The daily processing capacity of a single unit is increased to 3600kg-4800kg, 3-4 times higher than traditional equipment. A "foldable food-grade silicone clamping mechanism" replaces manual transfer and traditional grippers, with adjustable clamping force to adapt to leafy vegetables at different maturity levels. One person can operate three machines simultaneously, significantly reducing reliance on manual labor and costs.

[0018] 2. The equipment adopts a vertical and compact structure, with dimensions of 45cm in diameter and 110cm in height, occupying only 0.16㎡ of space, saving 80% of the space compared to traditional equipment. The layer spacing and clamping mechanism are adjustable, and it can process leafy vegetables with a diameter of 5-15cm and a height of 20-40cm, covering the entire growth cycle from tender leaves to maturity.

[0019] 3. Equipped with the K210 AI vision system and a 2-megapixel camera, it achieves a yellow leaf recognition accuracy of ≥97% and a false negative rate of ≤3%. Utilizing waterless sand removal technology, four axial fans generate contralateral airflow, achieving a sand removal rate of ≥95%, replacing traditional water washing. This prevents vegetable leaves from absorbing water and rotting. All contact parts meet national food-grade standards, with lead and cadmium migration levels <0.01mg / kg, and the total bacterial count exceeding the standard rate reduced from 37% to below 8%.

[0020] 4. Abandoning traditional water washing methods, each machine saves 10-15 tons of water per day. The frame is made of recycled aluminum alloy, achieving a material utilization rate of 95% and reducing resource waste. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of an integrated machine for primary processing of leafy vegetables according to the present invention; Figure 2 This is a schematic diagram of the structure of the yellowing and silt removal module of the present invention; Figure 3 for Figure 2 Another structural state diagram; Figure 4 This is a schematic diagram of the feeding and clamping module structure; Figure 5 for Figure 4 Schematic diagram of the clamping unit structure; Figure 6 This is a schematic diagram of the packaged module structure; Figure 7 This is a schematic diagram of the root-removal weighing module structure; Figure 8 This is a schematic diagram of the root removal component.

[0022] Explanation of the labels in the diagram: 100. Rack; 200. Yellow and mud removal module; 201. First support ring; 202. Fan bracket; 2021. Horizontal part; 2022. Vertical part; 203. First driven wheel; 204. Yellow leaf removal unit; 2041. Second driving wheel; 2042. Rack; 2043. High-speed steel cutter; 2044. Vision recognition unit; 205. First driving wheel; 300. Feeding and clamping module; 301. First support beam; 302. Clamping unit; 3021. Third driven sector wheel; 3022. Lifting section; 3023. Third driving wheel; 303. Feed inlet; 304. Circular retaining ring; 305. Annular mounting base; 306. Mounting arm; 307. Cutting device; 400. Packaging module; 401. Second support beam; 402. Second support ring; 403. Fourth driven wheel; 404. Fourth driving wheel; 405. Cylindrical sleeve; 500. Root removal and weighing module; 501. Annular base; 502. Third support beam; 503. Sensor bracket; 504. Leafy vegetable receiving tray; 505. Root removal assembly; 5051. Servo gear box; 5052. Rotary blade; 5053. High-speed rotating cutter; 600. First lead screw; 700. First sliding rod; 800, Second lead screw; 900, Second slide bar. Detailed Implementation

[0023] To further understand the content of this invention, it will be described in detail with reference to the accompanying drawings and specific embodiments.

[0024] In the description of this invention, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0025] In the description of this invention, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0026] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0027] like Figure 1 This is an integrated primary processing machine for leafy vegetables. This equipment is a vertical, four-layer, ring-shaped, conveyorless integrated device. Its main frame 100 is constructed of aluminum, employing a vertical cross-support structure, formed by the cross-assembly of two rectangular aluminum frames to create a stable frame structure. On this frame, four core functional modules are vertically integrated from top to bottom: a yellowing and sand removal module 200, a feeding and clamping module 300, a packaging module 400, and a root removal and weighing module 500. The entire equipment adopts a vertical layout, enabling continuous top-to-bottom processing of materials.

[0028] The first-layer yellowing and sand removal module 200 adopts a collaborative operation mode of airflow cleaning and visual recognition, integrating two major functions: airflow sand removal and yellow leaf removal. The core structure of the module includes an airflow sand removal unit, the main body of which is a first supporting ring 201 installed within the frame 100. Four sets of fan brackets 202 are evenly distributed circumferentially on the upper surface of the ring. Each fan bracket 202 consists of a horizontal part 2021 and a vertical part 2022. The upper end of the vertical part 2022 is inclined inward, forming an inclined mounting surface for fixing the axial flow fans. The four sets of axial flow fans are respectively installed on this mounting surface, forming a ring-shaped airflow coverage area pointing towards the center of the leafy vegetables, which can efficiently sweep away sand from the surface of the leafy vegetables. The horizontal part 2021 extends horizontally outward, with two opposing horizontal parts 2021 connected to the first sliding rod 700, and the other two connected to the first lead screw 600. The top of the first lead screw 600 is driven by a motor, realizing the vertical lifting and lowering of the yellowing and sand removal module 200.

[0029] A first driven wheel 203 is sleeved on the outer ring of the first support ring 201. The yellow leaf removal unit 204 is fixed to the lower end face of the first driven wheel 203. The first driven wheel 203 meshes with the first driving wheel 205 driven by the motor, driving the entire yellow leaf removal unit 204 to perform circumferential rotation scanning. The yellow leaf removal unit, as an actuator, includes a servo motor assembly and a second driving wheel 2041 connected to the servo motor output shaft via a coupling. The teeth of the second driving wheel 2041 mesh with the teeth of the rack 2042 to form a gear rack pair. The rack 2042 is mounted in a linear guide rail, and its end is equipped with a high-speed steel cutter 2043 to perform the removal action. The servo motor assembly, as a power source, precisely converts the rotational motion of the second driving wheel 2041 into the linear reciprocating motion of the rack 2042 through the meshing of the teeth. The high-speed steel cutter 2043 at the end of the rack achieves precise removal of yellow leaves.

[0030] The yellow leaf removal unit 204 is also equipped with a visual recognition unit 2044, including a Sentry vision module and a 2-megapixel camera. When the yellow leaf removal unit 204 rotates, the Sentry vision module captures images of the vegetable leaves in real time and automatically identifies yellow leaves through the HSV color model. The recognition signal is transmitted to the MEGA main controller. After receiving the signal, the controller randomly links the aforementioned servo drive mechanism to control the cutter to extend and accurately remove the yellow leaves.

[0031] The feeding and clamping module 300 is located directly below the desilting and silt removal module 200. The main structure of this module is a first support beam 301 fixed to four frames 100 and perpendicular to them. Clamping units 302 are arranged at the front end of the first support beam 301, with a total of four clamping units 302 arranged in a crisscross pattern. A feed inlet 303 is reserved in the middle for feeding. The feed inlet 303 is a vertically downward circular channel formed by circular retaining rings 304. The bottom of the circular retaining rings 304 is placed on a concentric annular mounting base 305. Four sets of symmetrically distributed mounting arms 306 extend radially outward and horizontally from the outer edge of the annular mounting base 305. Each set of mounting arms 306 includes two opposing rectangular or trapezoidal plate-shaped support structures. Each set of mounting arms 306 is connected to a clamping unit 302. The clamping unit 302 includes a third driven sector wheel 3021, whose central axis is supported and fixed by a bearing or bushing at the inner end of the mounting arm, allowing the third driven sector wheel 3021 to rotate freely around the axis. The third driven sector wheel 3021 has a lifting section 3022 extending obliquely upwards towards the center of the annular mounting base 305 to form a lifting state. The surface of the lifting section 3022 is covered with a food-grade silicone pad. When all four clamping units 302 are in the lifting state, the silicone pads collectively support the leafy vegetables falling from the feed inlet, achieving stable lifting. Each third driven sector wheel 3021 meshes with a third driving wheel 3023, which is driven by a servo motor. By driving the third drive wheel 3023 with a servo motor, the third driven sector wheel 3021 can be controlled to rotate within a certain angle range; 1. When the lifting section 3022 turns diagonally upward, it lifts the leafy vegetables; 2. When the lifting section 3022 turns diagonally downward, it releases the lifting and the leafy vegetables fall to the subsequent process.

[0032] The packaging module 400, located below the feeding and clamping module, is the final stage of the processing chain, responsible for the automatic bundling and sealing of leafy vegetables. The main structure of this module is a second support beam 401 fixed to the next layer of the frame, installed in the same way as the first support beam 301. The second support beam 401 together support the second support ring 402 located at the center of the frame 100. A fourth driven wheel 403 is fitted onto the outer ring of the second support ring 402 and meshes with a fourth driving wheel 404 driven by a DC motor, enabling 360-degree continuous rotation. A cylindrical sleeve 405 for winding food-grade bundling material is fixed on the fourth driven wheel 403. When the system receives a weighing pass signal, the motor drives the fourth driven wheel 403 to rotate, causing the bundling material to spirally wind around the outer circumference of the leafy vegetables, completing the uniform bundling operation. A motor-driven cutting device 307 is installed at the bottom of any of the first support beams 301, which can quickly cut the bundling material when bundling is complete. The entire packaging process is coordinated with the upward movement of the root removal and weighing module to create a dynamic binding effect.

[0033] The root removal and weighing module 500 is located at the bottom of the equipment and integrates root removal and finished product weighing functions. The main structure of this module is an annular base 501 located at the center of the frame 100. The annular base 501 is connected to the frame through four radially extending third support beams 502. Two of the opposing third support beams 502 cooperate with the second lead screw 800, and the other two are connected to the second slide bar 900. Driven by a motor at the bottom, the module can achieve overall lifting and lowering movement.

[0034] A sensor bracket 503 is mounted on the upper surface of the annular base 501. A leafy vegetable receiving tray 504 is installed on top of the sensor bracket 503, and a high-precision pressure sensor and a photoelectric sensor are integrated below the tray. When the leafy vegetable is released from the clamping unit 302 and falls onto the receiving tray, its root naturally extends downwards from the bottom of the tray. Two sets of root-removing components 505 are symmetrically arranged on the other two sides of the upper surface of the annular base 501. Each set of root-removing components includes a servo motor housing 5051, a rotary blade 5052, and a high-speed rotating cutter 5053. One end of the rotary blade 5052 is rotatably connected to the servo motor housing 5051, and the other end is connected to the high-speed rotating cutter 5053. The high-speed rotating cutter 5053 is disc-shaped with blades evenly spaced around its circumference and is driven to rotate at high speed by a DC motor. The two high-speed rotating cutters 5053 are arranged in parallel opposite directions, and their spacing is adjusted by controlling the angle of the rotary blade 5052 via a servo motor, which can accommodate root diameters in the range of 3-7 cm. Once the leafy greens are in place, the photoelectric sensor triggers the cutting action, and the two high-speed rotating cutters 5053 simultaneously complete the root removal operation. Subsequently, the pressure sensor collects the weight data of the leafy greens in real time and uploads it to the control system.

[0035] To achieve coordinated operation and precise control of the aforementioned functional modules, this equipment employs an integrated control system built with mature commercial hardware and conventional control logic. This system is not an innovation of this invention, but rather a solution that utilizes existing mature technologies to achieve module linkage and process management. It falls within the scope of existing technology that can be routinely selected and implemented by those skilled in the art based on the equipment's functional requirements.

[0036] Specifically, the entire control system uses the MEGA2560 development board as the core controller, paired with an L298N driver board, TB6600 driver, and LM2596S step-down module. It achieves wireless communication with mobile terminals via a BT18 Bluetooth module. The control system coordinates the actions of various functional modules, receives feedback signals from the K210 vision module and sensors, and precisely controls parameters such as cutter start / stop, fan speed, and binding force. The APP supports Android 8.0+ systems, and the interface integrates functions such as equipment start / stop, clamping force, and weighing threshold adjustment. It displays processing data and component warnings in real time, making it easy to operate and adaptable to various field usage scenarios.

[0037] The entire control system employs conventional techniques for automating equipment operation. The inventiveness of this invention lies in the innovative design of the aforementioned mechanical structure modules and their collaborative operation method. This control system is a supporting control scheme, well-known and implementable by those skilled in the art, designed to support this innovative structure and method. Therefore, details regarding the control system itself will not be elaborated further.

[0038] Operation process of the all-in-one machine: Before operation, check that the frame and each functional module are securely connected and that the T8 lead screw adjustment component is running smoothly. After powering on, pair the BT18 Bluetooth module with the mobile APP, confirm parameters such as clamping force and weighing threshold, and run it unloaded for 1 minute.

[0039] 1. Material preparation: Prepare fresh leafy vegetables, such as fresh Chinese cabbage with a diameter of 5-15cm as raw material.

[0040] 2. Feeding and clamping: After clicking the "Start" button on the APP, the control system receives the instruction and drives the four servo motors of the feeding and clamping module 300 to move synchronously within 1 second, causing the four third driven fan-shaped wheels 3021 of the clamping unit 302 to rotate to the lifting angle. The silicone pads covering their surfaces together form a receiving surface. The operator puts a single Chinese cabbage vertically into the circular feed port 303 of the second feeding and clamping module with the leaves facing up and the roots facing down. The cabbage is firmly clamped and fixed in the preset position, and the clamping force is precisely applied according to the set value.

[0041] 3. Removing Yellow Leaves and Sand: After the clamping action is completed, the top-level yellowing and sand removal module 200 is activated. First, the motor driving the first lead screw 600 operates, causing the entire module (including the first support ring, fan assembly, and yellow leaf removal unit) to descend smoothly along the first slide bar 700 until the axial fan assembly reaches the optimal working distance from the leafy vegetable surface. While the module descends, the following two operations are performed in parallel: 3.1. Airflow to remove mud and sand: Four axial fans start simultaneously, generating a ring-shaped concentrated airflow with a speed of about 5m / s, pointing towards the center of the leafy vegetables, which powerfully blows the surface of the leafy vegetables, causing the attached mud and sand to fall off.

[0042] 3.2. Visual Recognition and Removal of Yellow Leaves: The 2-megapixel camera on the visual recognition unit 2044 captures 360-degree images of the leafy vegetables during the module's circumferential rotation, accurately identifying the location of yellow leaves. Once a yellow leaf is detected, the control system sends a pulse signal to the servo drive mechanism. The servo drive, via a rack and pinion pair, extends a high-speed steel cutter quickly and precisely, removing the identified yellow leaf during rotation. The false negative rate is controlled below 3%.

[0043] 4. Root Removal and Weighing: After the yellowing and mud removal processes are completed, the clamping unit 302 receives a control command, and four servo motors drive the third driven sector wheel 3021 to rotate synchronously to the release angle, releasing the clamp on the leafy vegetable. Under the action of gravity, the leafy vegetable falls vertically to the bottom root removal and weighing module 500, and is received by the leafy vegetable receiving plate 504 at its top. At this time, the roots of the leafy vegetable naturally extend downward through the reserved holes at the bottom of the receiving plate.

[0044] 4.1. Root Removal: After the photoelectric sensor detects the leafy greens in place, it triggers a root removal command. Two symmetrically arranged high-speed rotating cutters 5053 operate simultaneously: a DC motor drives the disc-shaped cutter to rotate at high speed (with blades evenly distributed circumferentially), while a servo motor controls two rotating blade plates 5052 according to the preset root diameter (adjustable from 3-7cm), precisely adjusting the distance between the blades of the two rotating cutters to the appropriate value. The high-speed rotating cutter 5053 completes the complete severing of the protruding root within 0.5 seconds.

[0045] 4.2. Real-time weighing: When the leafy vegetables fall into the leafy vegetable receiving tray 504, their weight is already acting on the integrated pressure sensor. Before and after root removal, the sensor continuously monitors the weight change and uploads the final product weight data to the control system in real time.

[0046] 5. Packaging and unloading: The control system compares the weight of the received finished product with the preset qualified threshold.

[0047] 5.1 Weight meets requirements: If the weight meets the requirements, the system will immediately trigger the packaging process. First, the motor driving the second lead screw 800 will start, causing the entire root-removed weighing module 500 (along with the root-removed leafy vegetables on it) to slowly and steadily rise.

[0048] 5.2 Synchronous Bundling: As the root-removing weighing module 500 rises, the packaging module 400 above it starts. A 24V DC motor drives the fourth drive wheel 404, which in turn drives the fourth driven wheel 403 of the cylindrical sleeve 405 to rotate at a constant speed through gear meshing. As the fourth driven wheel 403 rotates, the food-grade binding tape spirally winds around the rising leafy greens in a uniform and tight manner. This combined motion of "leafy greens rising" and "binding tape rotation" ensures the uniformity and strength of the binding.

[0049] 5.3 Cutting and Completion: When the leafy vegetable rises to the predetermined height and the number of binding loops reaches the set value, the packaging module 400 stops rotating. Simultaneously, the dedicated cutting device 307 (with a 45° angled blade optimized for cutting) installed at the bottom of the first support beam 301 activates, cleanly and efficiently cutting the binding strap within one second. At this point, the processing and packaging of a single leafy vegetable is complete, with a single cycle typically taking no more than 10 seconds. The packaged finished product can then be removed from the equipment.

[0050] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention; the actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A leafy vegetable primary processing integrated machine, characterized in that, include: The machine comprises a vertical frame and, from top to bottom, a de-yellowing and de-sanding module, a feeding and clamping module, a packaging module, and a root-removing and weighing module. The de-yellowing and de-sanding module includes an airflow de-sanding unit that removes sand using airflow, and a yellow leaf removal unit at the bottom of the airflow de-sanding unit that identifies and removes yellow leaves. The feeding and clamping module includes a vertical feeding port located at the center of the frame and at least one clamping unit for clamping leafy vegetables. Leafy vegetables falling from the clamping unit enter the root-removing and weighing module, which cuts off the roots of the leafy vegetables using a root-removing component. Then, the packaging module automatically bundles the leafy vegetables.

2. The integrated machine for primary processing of leafy vegetables according to claim 1, characterized in that: The airflow desanding and yellow leaf removal units are driven by the same lead screw, descend synchronously, and work in parallel along the circumference of the leafy vegetables. The airflow desanding unit generates annular airflow directed towards the leafy vegetables through circumferentially distributed axial flow fans, which efficiently blows away the desanding. The yellow leaf removal unit rotates and scans around the leafy vegetables through gear transmission. The visual recognition unit on it identifies yellow leaves in real time, and a high-speed steel cutter driven by a gear and rack mechanism is used to accurately remove them.

3. The integrated machine for primary processing of leafy vegetables according to claim 1, characterized in that: The feeding and clamping module includes multiple clamping units arranged in a ring with a feeding port in the middle. Each clamping unit includes a rotatable lifting section with a food-grade flexible padding layer on its surface. Rotation is used to lift and release the leafy vegetables.

4. The integrated machine for primary processing of leafy vegetables according to claim 3, characterized in that: The clamping units are four in number and arranged in a cross shape; the lifting section is driven by a servo motor and its clamping force is adjustable to accommodate leafy vegetables of different sizes and maturity.

5. The integrated machine for primary processing of leafy vegetables according to claim 2, characterized in that: The yellow leaf removal unit in the yellow leaf removal module includes a camera and a retractable cutting blade; the airflow generating unit includes four axial flow fans, which are arranged around the center of the leafy vegetables to generate opposing airflows to blow away the mud and sand.

6. The integrated machine for primary processing of leafy vegetables according to claim 1, characterized in that: The root removal component in the root removal weighing module includes two high-speed rotating cutters arranged opposite each other, and the distance between the high-speed rotating cutters is adjustable.

7. The integrated machine for primary processing of leafy vegetables according to claim 1, characterized in that: The root removal assembly also includes a servo control mechanism for adjusting the spacing between the high-speed rotating cutters.

8. The integrated machine for primary processing of leafy vegetables according to claim 1, characterized in that: The packaging module includes a rotatable cylindrical sleeve covered with binding material, which spirally binds the leafy vegetables as the root-removing and weighing module rises.

9. The integrated machine for primary processing of leafy vegetables according to claim 1, characterized in that: The packaging module also includes a cutting device for cutting the bundled materials.

10. A method for primary processing of leafy vegetables, using an integrated primary processing machine for leafy vegetables as described in any one of claims 1 to 9, characterized in that, Includes the following steps: S1: Place the leafy vegetables into the feeding and clamping module in an upright position, and fix them in place by the clamping unit; S2: Activate the yellowing and sand removal module, identify and remove yellow leaves through the visual recognition unit, and remove sand from the surface of leafy vegetables through airflow. S3: The clamping unit releases the leafy vegetable, causing it to fall to the root-removing and weighing module; S4: The root-removing and weighing module removes the roots of leafy vegetables and weighs them in real time; S5: If the weighing result meets the preset standard, the packaging module will be started to automatically tie the leafy vegetables as they rise, thus completing the processing.

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