Integrated automatic processing device for green onions

Abstract

This invention discloses an integrated automatic scallion processing device, belonging to the field of agricultural product processing machinery technology. It includes a feeding component, a cleaning component, a weighing component, and a bundling component. The feeding component uses a baffle-type conveyor belt to achieve quantitative single-stalk delivery of scallions. The cleaning component, located downstream of the feeding component, integrates a cutting component and a peeling unit. After the scallions are received by a buffer plate, they are gripped by mechanical claws, and high-pressure airflow is used to directionally blow away the withered skin. The weighing component, located downstream of the cleaning component, performs cumulative weighing of the cleaned scallions. The bundling component, located downstream of the weighing component, uses a pressing mechanism to automatically bundle the scallions by applying, pressing, and cutting the tape with a single pressing action. This device integrates the four processes of feeding, cleaning, weighing, and bundling into a single unit, achieving continuous automatic processing from loose material to bundled scallions.

Description

Technical Field

[0001] This invention belongs to the field of agricultural product processing machinery technology, specifically, it relates to an integrated automatic scallion processing device. Background Technology

[0002] Scallions are a widely cultivated vegetable crop in my country. After harvesting, they need to undergo commercial processing such as root and leaf cutting, peeling, cleaning, weighing, and bundling before they can be sold in supermarkets and markets.

[0003] Existing scallion processing equipment is mostly single-function and fragmented, with each step relying on manual transfer and connection, resulting in poor production continuity and easy material accumulation. Furthermore, the equipment has a low degree of automation, requiring manual assistance and leading to high labor costs. These problems severely impact the efficiency of commercial scallion processing and restrict the economic benefits for farmers and supermarket operators.

[0004] Therefore, there is an urgent need for a scallion processing equipment that integrates multiple processes and achieves full-process automation. Summary of the Invention

[0005] In view of this, the technical problem to be solved by the present invention is to provide an integrated automatic scallion processing device, which realizes full automation of scallion feeding, cleaning, weighing and bundling through the collaborative operation of multiple components, thereby improving processing efficiency and reducing labor costs.

[0006] To achieve the above-mentioned technical objectives, the present invention discloses an integrated automatic scallion processing device, which includes: The feeding assembly is used to transport individual stalks of loose scallions to the downstream in a measured quantity; The cleaning component, located downstream of the feeding component, includes a cutting component and a peeling unit. The cutting component is used to cut the scallions to a fixed length, and the peeling unit removes the withered skin from the scallion surface by a combination of mechanical clamping and airflow blowing. The weighing component, located downstream of the cleaning component, is used to accumulate the weight of the cleaned scallions and automatically tilt and unload them when the preset weight is reached. The bundling component, located downstream of the weighing component, is used to receive a fixed quantity of scallions and automatically bundle them. An air compressor, connected to the stainless steel nozzle of the peeling unit, is used to provide the high-pressure airflow required for peeling; The feeding component, cleaning component, weighing component, and bundling component are integrated into the same frame. The peeling unit, weighing component, and bundling component are arranged in sequence along the material conveying direction. The material flows automatically between the components by gravity, completing the continuous automatic processing from bulk material to bundled material.

[0007] Furthermore, the feeding assembly includes a baffle-type conveyor belt and a feeding stepper motor that drives the baffle-type conveyor belt. Multiple baffles are spaced apart on the baffle-type conveyor belt, with the spacing and height of adjacent baffles configured to allow only a single stalk of scallion to pass through. The baffles provide lateral support for the scallion conveying, ensuring that loose scallions are effectively separated into single stalks during the conveying process, facilitating precise handling in subsequent cutting and peeling processes.

[0008] Furthermore, the cutting components include disc cutters positioned on both sides of the conveying path and cutting motors that drive the disc cutters to rotate. The disc cutters on both sides rotate at high speed, simultaneously cutting the roots and tops of the scallions to a fixed length, precisely removing soil-covered roots and withered leaves at the top, thus controlling the length of the scallion within a preset specification range.

[0009] Furthermore, the peeling unit includes: A buffer plate, located at the end of the conveying path, is used to catch falling scallions. The buffer plate has a V-shaped support surface to self-calibrate and position the scallions. An infrared sensor is installed on the support surface of the buffer plate to detect whether the scallions have fallen into the predetermined position. After the scallions are detected to have fallen into the position, the peeling unit is triggered to perform the peeling operation. The buffer plate is connected to the servo motor and can be flipped and switched between the support state and the avoidance state by the servo motor drive. Mechanical grippers are used to hold scallions; The translation drive mechanism includes a peeling stepper motor, a peeling gear, a peeling rack and a fixed base. The mechanical gripper is mounted on the fixed base. The peeling stepper motor drives the fixed base and the mechanical gripper to translate along the scallion axis through the gear and rack transmission. At least one stainless steel nozzle is positioned facing the surface of the scallion to spray out a high-pressure airflow; When the buffer plate switches to the avoidance state, the scallion is suspended and held by the mechanical claw, and is swept by airflow during the translation process.

[0010] Using the above structure, after being cut, the scallion falls into the V-shaped groove of the buffer plate, where its self-calibration function ensures precise positioning. Once the infrared sensor detects the scallion's placement, it triggers the mechanical gripper to close and hold the scallion. Subsequently, a servo motor drives the buffer plate to tilt downwards to avoid it, bringing the scallion to a suspended state. At this moment, the solenoid valve opens, and high-pressure airflow is ejected from the stainless steel nozzle. Simultaneously, the peeling stepper motor drives the mechanical gripper to move the scallion at a constant speed towards the nozzle. The high-pressure airflow blows axially along the scallion, thoroughly removing the withered skin and impurities adhering to its surface. The entire peeling process requires no water, avoiding damage to the scallion's tissue and effectively extending its shelf life.

[0011] Furthermore, the weighing components include: The first inclined guide plate is located diagonally below the peeling unit and is used to guide the cleaned scallions to the weighing station. The weighing plate is rotatably disposed at the end of the first inclined guide plate. The weighing plate includes an upper baffle, a lower baffle, and a weighing bracket located between the two. The upper baffle has an upwardly extending lateral limiting part to prevent the scallions from rolling off during the weighing process. A gravity sensor, mounted on a weighing bracket, is used to detect the cumulative weight of the scallions on the weighing plate. The weighing stepper motor is connected to the weighing plate and drives the weighing plate to tilt and unload the material when the accumulated weight reaches a preset threshold.

[0012] After peeling, the scallions roll onto the weighing plate via the first inclined guide plate. The lateral limiting part of the upper baffle effectively prevents the cylindrical scallions from accidentally rolling off during the accumulation process. The gravity sensor detects the accumulated weight of the scallions on the weighing plate in real time. When the weight reaches a preset threshold (e.g., 500g), the controller triggers the weighing stepper motor to start, driving the weighing plate to tilt around the axis, unloading the quantified scallions into the next process, achieving precise quantitative batch processing.

[0013] Furthermore, the strapping components include: The second inclined guide plate is set diagonally below the weighing plate and is used to guide a fixed quantity of scallions to the bundling station. Fixed plates are arranged opposite each other to form a bundling station; A tape supply mechanism is used to supply tape to the bundling station. A bundling buffer plate, placed between the fixed plates, is used to support the scallions entering the bundling station; The downward pressing mechanism, located above the bundling station, is used to push the scallions downwards; The bundling and cutting mechanism is movably mounted on the fixed plate and works in conjunction with the pressing mechanism; In this process, the pressing mechanism drives the bundling and cutting mechanism to simultaneously wrap and cut the scallions with tape.

[0014] After being weighed, the scallions roll down the second inclined guide plate to the bundling station, where they naturally press onto the pre-placed tape and are supported by the bundling buffer plate to maintain their upright posture. Once the pressing mechanism is activated, a single pressing action can link the bundling and cutting mechanism, simultaneously completing the wrapping and pressing of the scallions with tape and the cutting of the tape. The structure is compact, the control logic is simple, and the bundling efficiency is high.

[0015] Furthermore, the bundling and cutting mechanism includes an L-shaped pressure bar rotatably mounted on a fixed plate, a blade disposed on the L-shaped pressure bar, and a return spring for driving the L-shaped pressure bar to reset. A flexible pressure pad is provided at the end of the L-shaped pressure bar that contacts the scallion.

[0016] Furthermore, the pressing mechanism includes a pressing motor, a pressing gear, and a rack and pinion plate. The pressing motor drives the rack and pinion plate to move up and down through the pressing gear. When the pressing mechanism presses down, it pushes the L-shaped pressure rod to swing inward, so that the flexible pressure pad at its end presses the tape onto the surface of the scallion. When the L-shaped pressure rod swings to the predetermined position, the blade cuts the tape.

[0017] During binding, the downward-pressing motor drives the rack and pinion plate downwards, pushing the L-shaped pressure rods to rotate around their axis, enveloping the scallion stalk between the two L-shaped pressure rods. The flexible pressure pads at the ends of the L-shaped pressure rods press the tape against the scallion stem surface, ensuring a secure binding while preventing damage to the scallion stem. As the rack and pinion plate continues to press down, the L-shaped pressure rods swing to a closed position, and the top blades work together to cut the tape, leaving a new tape head for the next binding. After binding is complete, the downward-pressing motor reverses to drive the rack and pinion plate back to its original position, and the L-shaped pressure rods return to their original position under the action of the return spring, completing a single binding cycle.

[0018] Furthermore, the tape supply mechanism includes a tape support gear rotatably mounted on a fixed plate for supporting and guiding the tape into the strapping station. The tape roll is fitted onto the tape support gear and can rotate freely as the tape is pulled during the strapping process, ensuring a stable tape supply.

[0019] Furthermore, the air compressor has a rated pressure of 0.8 MPa. The stainless steel nozzle is connected to the air compressor's air circuit via a solenoid valve, enabling instantaneous opening and closing of the high-pressure airflow. By using a solenoid valve to control the on / off of the high-pressure airflow, precise timing coordination between the peeling airflow and the translational movement of the mechanical gripper can be achieved, ensuring peeling effectiveness while saving compressed air consumption.

[0020] Furthermore, the upper part of the rack pressure plate is the rack section, and the lower part is the platform section.

[0021] Compared with the prior art, the present invention can achieve the following technical effects: This invention integrates multiple scallion processing steps, including feeding, cleaning, weighing, and bundling, into a single device, achieving fully automated operation from bulk material input to quantitative bundled output. This effectively solves the problems of traditional equipment having single functions, scattered processes, and reliance on manual transportation, significantly improving the continuity and overall efficiency of scallion commercial processing and reducing labor costs.

[0022] This invention employs a dry peeling process that combines mechanical gripper holding and translation with high-pressure airflow directional blowing. Combined with a buffer plate's V-groove self-calibration positioning and infrared sensor triggering, it solves the problems of swaying and incomplete peeling associated with traditional single-airflow peeling, resulting in superior peeling performance. Simultaneously, the dry process avoids the tissue damage caused by washing, effectively extending the shelf life of the scallions and improving product quality.

[0023] This invention designs a sandwich-type weighing plate with an L-shaped limiting structure to achieve accurate cumulative weighing and automatic quantitative unloading of scallions. This not only eliminates weighing errors caused by material rolling and ensures the consistency of weight for each bundle of scallions, but also replaces manual weighing operations, solving the problems of low accuracy and slow efficiency of traditional manual weighing, and is suitable for large-scale processing needs.

[0024] This invention achieves integrated binding by linking the binding and cutting mechanism with the pressing mechanism, enabling the single pressing action to complete the tape pressing and cutting. Combined with the structural design of flexible pressure pads and return springs, it ensures the strength of the tape binding while avoiding the squeezing damage to the scallion stems caused by hard contact, ensuring the scallion bundles are neat in shape. At the same time, it simplifies the binding control logic, improves binding efficiency, and the compact structure also fits the integrated layout requirements of the whole machine.

[0025] The components of this invention are connected by inclined guide plates, and the materials are automatically transferred by gravity, which reduces the use of intermediate conveying devices, simplifies the overall structure, and reduces the manufacturing cost and operating energy consumption of the equipment.

[0026] Of course, any product implementing this invention does not necessarily need to achieve all of the technical effects described above at the same time. Attached Figure Description

[0027] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this invention, illustrate exemplary embodiments of the invention and are used to explain the invention, but do not constitute an undue limitation of the invention. In the drawings: Figure 1 This is a three-dimensional structural diagram of the integrated automatic scallion processing device of the present invention; Figure 2 This is a front view of the integrated automatic scallion processing device of the present invention; Figure 3 This is a schematic diagram of the three-dimensional structure of the peeling unit of the present invention; Figure 4 This is a schematic diagram of the three-dimensional structure of the weighing component of the present invention; Figure 5 This is a schematic diagram of the three-dimensional structure of the main body of the bundling component of the present invention.

[0028] Figure label: 1-Feeding assembly, 2-Cleaning assembly, 3-Weighing assembly, 4-Binding assembly, 5-Air compressor; 11- Baffle-type conveyor belt; 12- Feeding stepper motor; 21-Cutting part, 211-Cutting motor, 212-Disc cutter, 22-Tare unit, 221-Buffer plate, 222-Long shaft, 223-Servo motor, 224-Mechanical gripper, 225-Fixed base, 226-Tare rack, 227-Tare gear, 228-Tare stepper motor, 229-Stainless steel nozzle, 220-Infrared sensor; 31-First inclined guide plate, 32-Weighing plate, 321-Upper baffle, 322-Weighing bracket, 323-Lower baffle, 324-Gravity sensor, 33-Short shaft, 34-Weighing stepper motor; 41-Second inclined guide plate, 42-Fixing plate, 43-Bundling and cutting mechanism, 431-L-shaped pressure bar, 432-Blade, 433-Reset spring, 434-Flexible pressure pad, 44-Tape support gear, 45-Tape, 46-Bundling buffer plate, 47-Pressing mechanism, 471-Pressing motor, 472-Pressing gear, 473-Rack and pinion plate. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0030] like Figures 1 to 5 As shown in the figure, an embodiment of the present invention proposes an integrated automatic scallion processing device, including a feeding component 1, a cleaning component 2, a weighing component 3, a bundling component 4, and an air compressor 5; the above components are integrated on the same frame and arranged in sequence along the material conveying direction, and the material flows automatically between the components by gravity.

[0031] The feeding assembly 1 includes a baffle-type conveyor belt 11 and a feeding stepper motor 12 installed at the front end of the baffle-type conveyor belt 11. The baffle-type conveyor belt 11 has a width of 400mm and multiple baffles are spaced apart on it. The baffles are 30mm high and spaced 50mm apart. The baffle spacing and height are adapted to the single-stalk conveying specifications of scallions, providing lateral support for scallion conveying. The feeding stepper motor 12 is a Type 57 stepper motor with a holding torque of 3.6N·m, which is fixedly connected to the drive shaft of the conveyor belt through a coupling, driving the conveyor belt to rotate at a constant speed.

[0032] The cleaning component 2 is located downstream of the feeding component 1 and includes a cutting component 21 and a peeling unit 22; In some embodiments, the cutting component 21 includes a pair of cutting motors 211 mounted on both sides of the baffle conveyor belt 11, with the output shaft of each cutting motor 211 fixedly connected to a disc cutter 212. The disc cutter 212 has a diameter of 100mm, and when installed, its lower part is 10-12mm below the conveying plane of the baffle conveyor belt 11, with its blade surface tightly against the outer edge of the baffle conveyor belt 11 profile. The disc cutters 212 on both sides rotate at high speed, simultaneously cutting the roots and leaves of the scallions as they are conveyed, controlling the length of the scallion to 470±5mm.

[0033] The peeling unit 22 is installed at the end of the baffle conveyor belt 11 and includes a pair of buffer plates 221, a mechanical claw 224, a translation drive mechanism and a stainless steel air nozzle 229.

[0034] Specifically, the buffer plate 221 is fixedly connected to the long shaft 222, which in turn is fixedly connected to the output shaft of the servo motor 223. The buffer plate 221 has a V-groove structure, enabling self-calibration and positioning of the falling scallion. Driven by the servo motor 223, the buffer plate 221 can rotate up and down around the long shaft 222: when the buffer plate 221 is in a horizontal state, it is used to receive the scallion; when the buffer plate 221 is rotated to a downward state, it separates the scallion from the buffer plate 221 and keeps it suspended, providing working space for the gripping and translational movement of the mechanical claw 224 and the high-pressure blowing of the stainless steel air nozzle 229. It should be noted that when gripping the scallion, the mechanical claw 224 is at one end, gripping at the junction of the scallion leaf and the stalk, with virtually no blind spot for blowing. To prevent the scallion from bending significantly in a cantilever beam state and causing interference, the mechanical claw 224 can be appropriately tilted to counteract the downward bending of the scallion. The mechanical grippers 224 can be configured as two pairs with a small left-right spacing, and the clamping force is sufficient to support the weight of the entire scallion. An infrared sensor 220 is installed at the bottom of the V-shaped groove of the buffer plate 221. The infrared sensor 220 is a TCRT5000 infrared reflective sensor, which is used to detect whether the scallion has fallen into the bottom of the V-shaped groove. After detecting that the scallion has fallen into place, it outputs a low-level signal to the controller, triggering the peeling unit 22 to perform the peeling operation.

[0035] The mechanical gripper 224 is mounted on a fixed base 225, which is fixedly connected to a peeling rack 226. The peeling rack 226 meshes with a peeling gear 227 below it, and the peeling gear 227 is fixedly connected to the output shaft of a peeling stepper motor 228. The peeling stepper motor 228 is a Type 57 stepper motor with a holding torque of 2.3 N·m. A stainless steel air nozzle 229 is located on one side of the peeling unit 22, and its cross-sectional area is 16.8 mm². 2 .

[0036] Please continue to refer to this. Figure 1Air compressor 5 is located behind weighing assembly 3. It uses a KYJ-1990 high-pressure air pump with a rated pressure of 0.8 MPa (800 kPa) and a 70L air tank. It is connected to the stainless steel nozzle 229 of peeling unit 22 via an air pipe. The stainless steel nozzle 229 is connected to the air compressor 5 via a solenoid valve, enabling instantaneous opening and closing of the high-pressure airflow. The 0.8 MPa airflow pressure is an optimal value determined through multiple tests; at this pressure, the high-pressure airflow can effectively remove the withered outer skin of the scallions without damaging the tender internal tissue. A pressure regulating valve can be installed at the air outlet of air compressor 5 to adjust the working pressure within the range of 0.5-1.0 MPa, depending on the scallion variety, post-harvest storage time, and the adhesion of the withered skin, to meet different working conditions.

[0037] During the peeling process, after the infrared sensor 220 detects that the scallion has fallen into the bottom of the V-shaped groove of the buffer plate 221, the control system triggers the servo motor 223 to drive the buffer plate 221 to maintain the supporting state, and at the same time drives the mechanical claw 224 to close and clamp one side of the scallion leaf to complete the fixation. Then the servo motor 223 drives the buffer plate 221 to flip down, so that the scallion is in a suspended state. The relay controls the solenoid valve to open instantaneously, and the 0.8MPa high-pressure gas provided by the air compressor 5 is sprayed out from the stainless steel air nozzle 229. At the same time, the peeling stepper motor 228 drives the mechanical claw 224 to clamp the scallion and move it at a constant speed towards the stainless steel air nozzle 229 through the peeling gear 227 and the peeling rack 226. The high-pressure airflow blows away the withered skin on the scallion surface in a directional manner to achieve dry peeling. After peeling is complete, the solenoid valve closes, the peeling stepper motor 228 drives the mechanical gripper 224 to reset, and the servo motor 223 drives the buffer plate 221 to rise and receive the scallions. The mechanical gripper 224 releases, and the buffer plate 221 flips down again, guiding the cleaned scallions into the weighing assembly 3. The scallion peels carried by the high-pressure airflow enter the nylon mesh bag for collection. It should be noted that a scallion peel collection port is provided below the peeling unit 22, and a nylon mesh bag is fitted at the scallion peel collection port to collect the scallion peels blown off by the high-pressure airflow. The air permeability of the nylon mesh bag ensures that the airflow is discharged smoothly without affecting the blowing effect.

[0038] Next, please continue to refer to... Figure 4 The weighing component 3 is located downstream of the cleaning component 2 and includes a first inclined guide plate 31, a weighing plate 32, a gravity sensor 324, and a weighing stepper motor 34.

[0039] The first inclined guide plate 31 is installed diagonally below the peeling unit 22 to receive the peeled scallions and guide them to the weighing station.

[0040] The weighing plate 32 is rotatably mounted at the end of the first inclined guide plate 31 and is fixedly connected to the output shaft of the weighing stepper motor 34 via a short shaft 33. The weighing plate 32 has a sandwich structure, including an upper baffle 321, a weighing support 322, and a lower baffle 323. The weighing support 322 is disposed between the upper baffle 321 and the lower baffle 323, and a gravity sensor 324 is installed in its middle. The upper baffle 321 has an L-shaped structure, and its side baffles limit the scallions falling on the weighing plate 32, preventing the scallions from accidentally rolling off during the weighing process.

[0041] The gravity sensor 324 is a YZC131 type resistance strain gauge gravity sensor, which is connected to the controller signal via an HX711 module to accumulate the weight of the scallions rolling onto the weighing plate 32. The weighing stepper motor 34 is a 57 type stepper motor with a holding torque of 2.3 N·m.

[0042] During the weighing process, the cleaned scallions roll down the first inclined guide plate 31 onto the upper baffle 321 of the weighing plate 32. The gravity sensor 324 detects the weight signal in real time and transmits it to the HX711 module. The module converts the analog signal into a digital signal and transmits it to the controller to achieve cumulative weighing. When the cumulative weight reaches the preset 500g threshold, the controller triggers the weighing stepper motor 34 to start, driving the weighing plate 32 to tilt around the short axis 33, thus guiding the quantitatively weighed scallions into the bundling assembly 4. After unloading, the weighing stepper motor 34 reverses to drive the weighing plate 32 to reset, entering the next weighing cycle.

[0043] Please continue to refer to this. Figure 5 The strapping assembly 4 is located downstream of the weighing assembly 3 and includes a second inclined guide plate 41, a fixing plate 42, a tape supply mechanism, a strapping buffer plate 46, a pressing mechanism 47, and a strapping cutting mechanism 43.

[0044] The second inclined guide plate 41 is installed diagonally below the weighing plate 32 to receive the scallions after the weighing plate 32 has been tilted and unloaded, and to guide them to the bundling station.

[0045] A pair of fixing plates 42 are arranged opposite each other to form a bundling station. The tape supply mechanism includes a tape support gear 44 rotatably mounted on the upper inner side of the fixing plate 42, on which tape 45 is fitted for supplying tape to the bundling station. A pair of bundling buffer plates 46 are arranged on both sides of the fixing plate 42 to support the scallions entering the bundling station, keeping the scallions upright.

[0046] In detail, the initial end of the tape 45 is pre-stretched and adhered to the edge of the L-shaped pressure bar 431 or the binding buffer plate 46 on one side. When the scallion falls into the binding station, the scallion presses down on the tape. The tape support gear 44 is rotatably mounted on the fixed plate 42 via bearings. When changing the tape, the new tape roll can be directly fitted onto the tape support gear 44 without disassembling the fixed plate.

[0047] The binding and cutting mechanism 43 is installed on the inner center of a pair of fixed plates 42, and includes a pair of L-shaped pressure rods 431, a pair of blades 432, a pair of return springs 433, and a flexible pressure pad 434. The L-shaped pressure rods 431 are rotatably mounted on the fixed plates 42 via sleeves and can reciprocate around the mounting point. The blades 432 are embedded in the top of the L-shaped pressure rods 431. One end of the return spring 433 is connected to the corner of the L-shaped pressure rod 431, and the other end is connected to the fixed plate 42 via a sleeve, extending and retracting with the swing of the L-shaped pressure rods 431. A thick sponge flexible pressure pad 434 is attached to the end of the L-shaped pressure rod 431 facing the scallion. After each binding and cutting, the L-shaped pressure rods 431 return to their original position under the action of the return springs 433, and the cut tape ends naturally hang down or adhere to the ends of the L-shaped pressure rods, preparing for the next binding.

[0048] The pressing mechanism 47 is located above the fixed plate 42 and includes a pair of pressing motors 471, a pair of pressing gears 472, and a pair of rack and pinion plates 473. The pressing motors 471 are 5840-31ZY type DC geared motors with an output speed of 28 r / min and a rated torque of 50 kg·cm. The output shaft of the pressing motors 471 is fixedly connected to the pressing gears 472, and the pressing gears 472 mesh with the rack and pinion plates 473. The upper part of the rack and pinion plates 473 is a rack section, and the lower part is a platform section. Its pressing stroke is adapted to the swing angle of the L-shaped pressure rod 431 and the limiting position of the binding buffer plate 46.

[0049] During the bundling process, the scallions, after being weighed, enter the bundling station along the second inclined guide plate 41 and are naturally pressed onto the pre-placed adhesive tape 45, supported by the bundling buffer plate 46 and the fixing plate 42. After weighing is completed and a preset delay is set, the controller drives the downward pressure motor 471 to start, which in turn drives the downward pressure gear 472 to rotate, thereby driving the rack and pinion pressure plate 473 to press down vertically. During the downward movement of the rack and pinion pressure plate 473, it pushes the L-shaped pressure rod 431 to rotate around its axis, surrounding the scallion body between the two L-shaped pressure rods 431. The flexible pressure pads 434 at the ends of the L-shaped pressure rods 431 press the adhesive tape 45 onto the surface of the scallion stem. As the rack and pinion pressure plate 473 continues to press down, the L-shaped pressure rods 431 swing to the fitted state, and the top blades 432 work together to cut the adhesive tape 45, leaving a new tape head for the next bundling. Subsequently, the rack and pinion plate 473 continues to press down, pushing the L-shaped pressure rod 431 to separate from the bundling buffer plate 46, and the bundled scallions fall out under the action of gravity. After bundling is completed, the pressing motor 471 reverses to drive the rack and pinion plate 473 to reset, and the L-shaped pressure rod 431 returns to its original position under the traction of the return spring 433, completing a single bundling cycle.

[0050] The working principle of the integrated automatic scallion processing device of the present invention is as follows: In use, loose scallions are evenly placed at the input end of the baffle-type conveyor belt 11. After starting the device, the feeding stepper motor 12 drives the conveyor belt to run at a constant speed, and the baffles separate the loose scallions into single-stalk conveying states. When the scallions move to the cutting part 21 position with the conveyor belt, the high-speed rotating disc blades 212 on both sides cut the roots and leaves of the scallions to a fixed length. After cutting, the scallions continue to move with the conveyor belt to the end and fall into the V-shaped groove of the buffer plate 221 of the peeling unit 22. After the infrared sensor 220 detects the landing position, it triggers the peeling program to complete the dry peeling. After cleaning, the scallions roll down onto the weighing plate 32 via the first inclined guide plate 31. The gravity sensor 324 performs cumulative weighing, and after reaching the preset weight, the weighing plate 32 tilts to unload the material. After being quantitatively measured, the scallions enter the bundling station via the second inclined guide plate 41. The pressing mechanism 47 and the bundling and cutting mechanism 43 work together to complete the pasting, pressing and cutting of the tape through a single pressing action. The bundled scallions fall out automatically, completing the entire processing flow.

[0051] This device employs a centralized controller for unified timing control of all components. After the infrared sensor 220 detects a scallion falling into position, the feeding stepper motor 12 pauses operation. Once the peeling unit 22 completes the peeling process and releases the scallion, the feeding stepper motor 12 resumes operation to deliver the next scallion. When the accumulated weight of the weighing component 3 reaches a preset threshold, the controller triggers the weighing stepper motor 34 to drive the weighing plate 32 to tilt and unload the material, simultaneously sending a preparatory signal to the binding component 4. After completing a single binding cycle, the binding component 4 sends a ready signal to the weighing component 3, allowing the next batch of scallions to enter the binding station. Through this timing coordination, smooth material flow between components is ensured, preventing material accumulation or equipment idling.

[0052] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. An integrated automatic scallion processing device, characterized in that, include: The feeding assembly (1) is used to quantitatively transport individual scallions to the downstream. The cleaning component (2) is located downstream of the feeding component (1) and includes a cutting component (21) and a peeling unit (22). The cutting component (21) is used to cut the scallions to a fixed length, and the peeling unit (22) removes the withered skin on the scallion by a combination of mechanical clamping and airflow blowing. Weighing component (3) is located downstream of the cleaning component (2) for cumulative weighing of the cleaned scallions and automatically tilting and unloading when the preset weight is reached. The bundling component (4) is located downstream of the weighing component (3) and is used to receive a fixed quantity of scallions and complete the automatic bundling. An air compressor (5) is connected to the air passage of the stainless steel air nozzle (229) of the peeling unit (22) to provide the high-pressure airflow required for peeling; The feeding component (1), cleaning component (2), weighing component (3) and bundling component (4) are integrated on the same frame. The peeling unit (22), weighing component (3) and bundling component (4) are arranged in sequence along the material conveying direction. The material flows automatically between the components by gravity, completing the continuous automatic processing from bulk material to bundled material.

2. The integrated automatic scallion processing device according to claim 1, characterized in that, The feeding assembly (1) includes a baffle conveyor belt (11) and a feeding stepper motor (12) that drives the baffle conveyor belt (11). Multiple baffles are spaced apart on the baffle conveyor belt (11), and the spacing and height of the adjacent baffles are configured to allow only a single scallion to pass through.

3. The integrated automatic scallion processing device according to claim 1, characterized in that, The cutting component (21) includes a disc cutter (212) disposed on both sides of the conveying path and a cutting motor (211) that drives the disc cutter (212) to rotate.

4. The integrated automatic scallion processing device according to claim 1, characterized in that, The peeling unit (22) includes: A buffer plate (221) is set at the end of the conveying path to catch falling scallions. The buffer plate (221) has a V-shaped support surface to self-calibrate and position the scallions. An infrared sensor (220) is set on the support surface of the buffer plate (221) to detect whether the scallions have fallen into the predetermined position. After the scallions are detected to have fallen into the position, the peeling unit (22) is triggered to perform the peeling operation. The buffer plate (221) is connected to the servo motor (223) for transmission and can be driven by the servo motor (223) to switch between the support state and the avoidance state. Mechanical gripper (224) for gripping scallions; The translation drive mechanism includes a peeling stepper motor (228), a peeling gear (227), a peeling rack (226), and a fixed base (225). The mechanical claw (224) is mounted on the fixed base (225). The peeling stepper motor (228) drives the fixed base (225) and the mechanical claw (224) to translate along the scallion axis through a gear and rack transmission. At least one stainless steel nozzle (229) is positioned toward the surface of the scallion for ejecting a high-pressure airflow; When the buffer plate (221) switches to the avoidance state, the scallion is in a suspended state, held by the mechanical claw (224) and blown by the airflow during the translation process.

5. The integrated automatic scallion processing device according to claim 1, characterized in that, The weighing component (3) includes: The first inclined guide plate (31) is set at the lower angle of the peeling unit (22) to guide the cleaned scallions to the weighing station; Weighing plate (32) is rotatably disposed at the end of the first inclined guide plate (31). The weighing plate (32) includes an upper baffle (321), a lower baffle (323) and a weighing bracket (322) located between the two. The upper baffle (321) has an upwardly extending lateral limiting part to prevent the scallions from rolling off during the weighing process. A gravity sensor (324) is installed on the weighing bracket (322) to detect the cumulative weight of the scallions on the weighing plate (32); The weighing stepper motor (34) is connected to the weighing plate (32) for transmission. When the accumulated weight reaches a preset threshold, it drives the weighing plate (32) to tilt and unload the material.

6. The integrated automatic scallion processing device according to claim 1, characterized in that, The strapping assembly (4) includes: The second inclined guide plate (41) is set below the weighing plate (32) and is used to guide the quantitative green onions to the bundling station; Fixed plate (42), set opposite to form a binding station; A tape supply mechanism for supplying tape (45) to the bundling station. A bundling buffer plate (46) is set between the fixed plates (42) to support the scallions entering the bundling station; The pressing mechanism (47) is located above the bundling station and is used to push the scallions downward. The bundling and cutting mechanism (43) is movably mounted on the fixed plate (42) and works in conjunction with the pressing mechanism (47); In this process, the pressing action of the pressing mechanism (47) drives the bundling and cutting mechanism (43) to simultaneously complete the wrapping, pressing and cutting of the scallion with tape.

7. The integrated automatic scallion processing device according to claim 6, characterized in that, The bundling and cutting mechanism (43) includes an L-shaped pressure bar (431) rotatably mounted on a fixed plate (42), a blade (432) disposed on the L-shaped pressure bar (431), and a return spring (433) for driving the L-shaped pressure bar (431) to reset. A flexible pressure pad (434) is provided at the end of the L-shaped pressure bar (431) that contacts the scallion.

8. The integrated automatic scallion processing device according to claim 7, characterized in that, The pressing mechanism (47) includes a pressing motor (471), a pressing gear (472), and a rack and pinion plate (473). The pressing motor (471) drives the rack and pinion plate (473) to move up and down through the pressing gear (472). When the pressing mechanism (47) presses down, it pushes the L-shaped pressing rod (431) to swing inward, so that the flexible pressing pad (434) at its end presses the tape onto the surface of the scallion. When the L-shaped pressing rod (431) swings to the predetermined position, the blade (432) cuts the tape.

9. The integrated automatic scallion processing device according to claim 6, characterized in that, The tape supply mechanism includes a tape support gear (44) rotatably mounted on a fixed plate (42) for supporting and guiding the tape (45) into the binding station.

10. The integrated automatic scallion processing device according to claim 1, characterized in that, The rated pressure of the air compressor (5) is 0.8MPa. The stainless steel air nozzle (229) is connected to the air circuit of the air compressor (5) through a solenoid valve to realize the instantaneous opening and closing of the high-pressure airflow.

Images