An integrated device and method for washing and bundling green onions

Abstract

This invention discloses an integrated device and method for washing and bundling scallions. The device includes a frame, and mounted on the frame are a spray washing mechanism, a draining mechanism, a temporary storage and transition mechanism, a bundling and transfer mechanism, a bundling execution mechanism, and a material unloading mechanism. The spray washing mechanism includes a washing tank, a spray assembly, an inclined lifting assembly, a water disturbance assembly, and a filter baffle. The draining mechanism includes a third conveying mechanism and a vibration mechanism. The temporary storage and transition mechanism receives the scallions output from the draining mechanism and sends the scallions it receives onto the support frame of the bundling and transfer mechanism. The bundling and transfer mechanism includes a support frame and a feeding drive assembly that drives the support frame to move; the material unloading mechanism includes a limit frame and a guide rod. This invention significantly reduces manual intervention and improves processing continuity and site utilization by automating the entire process of scallion tip and root cutting, dust removal, washing, drying, bundling, and unloading on the same equipment.

Description

Technical Field

[0001] This invention belongs to the technical field of scallion cleaning equipment, specifically relating to an integrated device and method for scallion cleaning and bundling. Background Technology

[0002] As a common fresh vegetable used for both consumption and seasoning, scallions typically undergo a series of post-harvest processing steps, including tip trimming, root trimming, surface dust removal, washing, dehydration, bundling, and unloading, to meet subsequent packaging, transportation, and sales requirements. Especially in large-scale planting and centralized processing scenarios, processing efficiency, product consistency, and continuous operation capabilities place high demands on equipment performance. Therefore, automated and continuous processing equipment for scallions has gradually become a focus of attention in related fields.

[0003] Existing scallion processing equipment is mostly based on a single-machine, segmented structure, with different processes typically completed by independent equipment. For example, functions such as cutting, washing, draining, and bundling are often set up separately, and the equipment usually relies on manual transfer or simple conveyor mechanisms for connection. This type of processing not only results in dispersed equipment layout and a large footprint, but also poor continuity between processes, easily leading to accumulation, waiting, or material interruption due to inconsistent upstream and downstream cycles, thus affecting overall processing efficiency and increasing the degree of manual intervention and operating costs.

[0004] In the cleaning process, existing equipment typically uses a single immersion or single spray method, resulting in a relatively limited cleaning approach. When there is a significant amount of mud and sand adhering to the surface of the scallions, a single cleaning often fails to remove impurities from crevices and rinse away surface residue, leading to limited cleanliness. Furthermore, some cleaning equipment lacks the ability to separate and process impurities such as mud, sand, and scallion leaves, allowing these impurities to easily circulate in the water. This not only affects the cleaning effect but also increases the frequency of tank maintenance and water changes, hindering water conservation and long-term stable operation.

[0005] In terms of post-washing drying, existing technologies mostly rely on natural drainage or simple air blowing to remove surface moisture, resulting in limited dehydration efficiency. When there is a significant amount of residual moisture on the surface of the scallions, it can negatively impact subsequent bundling processes, such as causing loose bundles, insufficient bundling stability, or a decline in the appearance quality of the finished product. Especially in continuous processing scenarios, without effective vibration dehydration combined with airflow drying, it is often difficult to achieve sufficient surface drying within a limited conveying path.

[0006] Furthermore, existing automatic baling equipment generally suffers from insufficient matching between continuous output and intermittent baling when connected to the preceding conveying process. When the front-end conveyor is continuously outputting while the rear-end receiving mechanism is not yet in place, the scallions are prone to falling directly, piling up, or the conveying process is interrupted, affecting the continuous operation of the entire line. Although some equipment has an intermediate buffer structure, its motion is relatively complex, often requiring multiple drive sources to coordinate and achieve translation, flipping, and other actions. This not only results in long transmission chains and complex control logic but also in high manufacturing and maintenance costs, and its long-term operational stability needs to be improved.

[0007] In the bundling and unloading process, existing technologies often encounter problems with the smooth unloading of scallions after they enter the bundling area. In particular, after bundling, the separation process between the bundled scallions and the supporting components still relies on manual material handling or complex lifting and pushing structures in some equipment, which can easily lead to cumbersome action connections, insufficient automation, and limited discharge cycle time.

[0008] In summary, existing scallion processing equipment still has shortcomings in terms of the degree of integration of the entire process, the continuity of the connection between each process, the cleanliness of cleaning, the dehydration effect, the buffer transition before bundling, and the automatic unloading after bundling. It is still difficult to meet the needs of large-scale scallion processing for automated, continuous, stable and highly consistent operation. Summary of the Invention

[0009] The purpose of this invention is to provide an integrated device and method for washing and bundling scallions.

[0010] In a first aspect, the present invention provides an integrated device for washing and bundling scallions, which includes a frame, and a spray washing mechanism, a draining mechanism, a temporary storage and transition mechanism, a bundling and transfer mechanism, a bundling execution mechanism and a material return mechanism installed on the frame.

[0011] The spray cleaning mechanism includes a cleaning tank, a spray assembly, an inclined lifting assembly, a water agitation assembly, and a filter baffle. The inclined lifting assembly is configured to tilt and lift the scallions from the cleaning tank upwards to the draining mechanism. During operation, the conveying surface of the inclined lifting assembly is partially submerged below the liquid surface in the cleaning tank.

[0012] The water disturbance component is configured to disturb the water in the cleaning tank.

[0013] The spray assembly is configured to spray water onto the scallions conveyed on the tilting and lifting assembly.

[0014] The draining mechanism includes a third conveying mechanism and a vibration mechanism. The third conveying mechanism is mounted on the vibration mechanism. Drainage holes are provided on the conveying surface of the third conveying mechanism. The vibration mechanism is configured to drive the third conveying mechanism to reciprocate.

[0015] The temporary storage and transfer mechanism is configured to receive the scallions output by the draining mechanism and to send the scallions it receives onto the carrying frame of the bundling and transfer mechanism.

[0016] The bundling and transfer mechanism includes a support frame and a feeding drive assembly for moving the support frame; the support frame is provided with two slotted structures at intervals.

[0017] The bundling mechanism is equipped with an inlet and an outlet; the inlet is located on the moving path of the scallions supported on the support frame.

[0018] The unloading mechanism includes a limiting frame and a guide rod; the top end of the guide rod is rotatably connected above the feed inlet of the bundling actuator; the limiting frame provides a limit to the guide rod in the rotation direction, so that the guide rod is initially in an inclined posture that gradually approaches the bundling area of ​​the bundling actuator from top to bottom.

[0019] Preferably, a pretreatment mechanism is also included. The pretreatment mechanism includes a first conveying mechanism, a second conveying mechanism, a tip-cutting assembly, a root-cutting assembly, and a dust-blowing mechanism. Both the first and second conveying mechanisms are belt conveyors arranged sequentially. The second conveying mechanism is located above the cleaning tank. The first conveying mechanism's conveying direction is inclined upwards, and the conveyor belt has multiple partitions arranged at intervals along the conveying direction. The tip-cutting assembly and the root-cutting assembly are symmetrically arranged on both sides of the second conveying mechanism, respectively configured to cut off the tips and roots of the scallions conveyed on the second conveying mechanism. The dust-blowing mechanism includes a swing arm and a swing drive module. One end of the swing arm is rotatably connected to the frame. The swing drive module drives the swing arm to swing back and forth above the second conveying mechanism. The swing arm has multiple air holes. Each air hole is connected to an air supply module via an air pipe.

[0020] Preferably, the pretreatment mechanism further includes a scallion leaf pressing and conveying mechanism. The scallion leaf pressing and conveying mechanism is located on a belt conveyor above the second conveying mechanism. The gap between the upper surface of the conveyor belt of the second conveying mechanism and the lower surface of the conveyor belt of the scallion leaf pressing and conveying mechanism forms a scallion conveying channel.

[0021] The pretreatment mechanism also includes a scallion stem pressing assembly. The scallion stem pressing assembly includes a pressing bracket and a pressing wheel. The pressing bracket is fixed to the frame. The pressing wheel is rotatably connected to the bottom end of the pressing bracket. The outer circumferential surface of the pressing wheel is provided with an elastic anti-slip layer. The pressing wheel is spaced apart from the upper surface of the conveyor belt of the second conveying mechanism. The position of the pressing wheel corresponds to the root cutting assembly, so that when the root cutting assembly cuts the scallion root, the pressing wheel presses against the scallion.

[0022] Preferably, the tilting and lifting assembly includes two chain drive assemblies and a support plate assembly laid between the two chain drive assemblies. The support plate assembly includes multiple strip-shaped support plates that circulate with the chain drive assemblies. Through holes are formed in the strip-shaped support plates. The spray assembly includes spray heads, an outlet pipe, a return pipe, and a pumping device. Multiple downward-facing spray heads are positioned above the tilting and lifting assembly. A return water inlet is provided on the side of the cleaning tank. The inlet of the pumping device is connected to the return water inlet of the cleaning tank via a return water pipe. The outlet of the pumping device is connected to the spray heads via an outlet pipe.

[0023] The water disturbance component includes an air inlet pipe and an air supply device. An air inlet is located on the side of the cleaning tank. One end of the air inlet pipe is connected to the air outlet of the air supply device. The other end of the air inlet pipe passes through the air inlet on the side of the cleaning tank and extends into the cleaning tank. The air inlet pipe is horizontally positioned, with its outlet facing the side of the cleaning tank cavity away from the draining mechanism.

[0024] Preferably, a filter baffle is fixed inside the cleaning tank. The filter baffle divides the inner cavity of the cleaning tank into an upper cleaning zone and a lower sedimentation zone. The air inlet and water outlet on the side of the cleaning tank are both located in the cleaning zone. A sediment discharge port is connected to the bottom of the sedimentation zone.

[0025] Preferably, the vibration mechanism includes a lower support, a spring, an upper support, a mounting plate, and a vibration motor. The lower support is fixed to the frame. The upper support is connected to the lower support by a spring. The third conveying mechanism is mounted on the upper support. The mounting plate is fixed to the bottom of the third conveying mechanism. The vibration motor is fixed to the mounting plate and drives the third conveying mechanism, which is elastically supported by the spring, to reciprocate. The draining mechanism also includes a drying mechanism. The air outlet of the drying mechanism faces the conveying surface of the third conveying mechanism.

[0026] Preferably, the temporary storage and transition mechanism includes a linear drive structure, a base, a sliding structure, a connecting shaft, a steering plate, and a temporary storage and support structure. The sliding structure is slidably connected to the base and driven by the linear drive structure. The connecting shaft is rotatably connected to the sliding structure. The temporary storage and support structure is fixed to the connecting shaft. The steering plate is fixed to the connecting shaft. A steering guide groove is provided on the base. A follower structure located in the steering guide groove is connected to the steering plate. The steering guide groove includes a first transverse groove segment and an oblique groove segment connected in sequence. The length direction of the first transverse groove segment is parallel to the sliding direction of the sliding structure. The first transverse groove segment is located on the side of the oblique groove segment closer to the draining mechanism. During the process of the linear drive structure driving the sliding structure away from the draining mechanism, the follower structure enters the oblique groove segment from the first transverse groove segment, and the temporary storage and support structure first moves laterally and then flips over, sending the scallions it carries into the bundling and transfer mechanism.

[0027] Preferably, the bundling actuator includes a bundling bracket, a notched toothed ring, a first mounting rod, and a bundling drive assembly; the bundling bracket includes a main bracket and a dividing bracket; both the main bracket and the dividing bracket are fixed on the frame; the main bracket has a bundling area; the main bracket has an opening structure facing obliquely downward; the dividing bracket is located within the opening structure of the main bracket, dividing the opening structure of the main bracket into an inlet and an outlet; the notched toothed ring is rotatably connected to the bundling bracket; the first mounting rod is connected to the side of the notched toothed ring; the mounting rod is used to attach the bundling tape roll; the notched toothed ring is driven to rotate by the bundling drive assembly.

[0028] Preferably, the bundling actuator further includes a strapping cutter constraint assembly; the strapping cutter constraint assembly includes a linear module, a movable pressure head, a fixed pressure head, and a blade; the linear module and the fixed pressure head are mounted on a frame; the linear module is provided with a push rod; the movable pressure head is fixed to the outer end of the push rod; the linear module drives the push rod to enter or exit the bundling area; when the linear module exits the bundling area, the movable pressure head is in contact with the fixed pressure head; the blade is fixed to the side of the movable pressure head, and the cutting edge faces the side closer to the fixed pressure head.

[0029] Secondly, the present invention provides an integrated method for washing and bundling scallions, which uses the aforementioned integrated device for washing and bundling scallions. The integrated method for washing and bundling scallions includes:

[0030] The scallions to be processed enter the cleaning tank.

[0031] The water disturbance component agitates the water to perform a primary cleaning of the scallions being treated.

[0032] The tilting and lifting component causes the scallions to tilt upwards and be transported above the water surface, while the spraying component sprays water onto the scallions for secondary cleaning.

[0033] The tilting and lifting assembly outputs the scallions to the third conveying mechanism in the draining mechanism. The vibration mechanism drives the third conveying mechanism to vibrate, shaking off the water adhering to the scallions.

[0034] The third conveying mechanism outputs the scallions to the temporary storage and transition mechanism.

[0035] When the carrier frame in the bundling and transfer mechanism reaches below it, the temporary storage and transfer mechanism sends the scallions onto the carrier frame.

[0036] The bundling and transfer mechanism feeds the scallions into the bundling area from the feed inlet of the bundling bracket; as the scallions enter the bundling area, they push the guide rod to flip and then reset.

[0037] The bundling drive assembly drives the notched toothed ring to rotate, releasing the bundling tape from the bundling roll mounted on the first mounting rod. The bundling tape is then wound around the scallion. After winding is complete, the bundling tape is cut, and the end of the bundling tape extending from the roll is kept fixed to the bundling bracket to facilitate the next winding action.

[0038] The notched toothed ring rotates until the notched structure is aligned with the discharge port; the support frame in the bundling and transfer mechanism moves downward to the temporary storage transition mechanism, the scallion is blocked by the guide rod, and an X-shaped cross guide structure is formed between the inner wall of the support frame and the inclined guide rod. During the movement of the support frame, the intersection point of the X-shaped cross guide structure moves upward, generating an upward supporting force on the scallion, causing the scallion to gradually rise until it leaves the support frame and is output from the discharge port of the bundling bracket.

[0039] The present invention has the following beneficial effects.

[0040] 1. This invention achieves fully automated processing of scallion washing, drying, temporary storage, bundling and transfer, bundling execution, and unloading by integrating spray washing, draining, temporary storage, bundling and transfer, bundling execution, and unloading mechanisms on the same frame. This significantly reduces manual intervention and improves processing continuity and site utilization. In embodiments including a pre-treatment mechanism, this invention can also automatically complete pre-treatment operations including tip trimming, root trimming, and dust removal.

[0041] 2. This invention achieves the effect of soaking and spraying secondary cleaning of scallions by setting water disturbance components, tilting and lifting components, spraying components and filter baffles in the cleaning tank, and realizes sedimentation of mud and sand, interception of large impurities and water recycling, thereby improving the cleaning cleanliness and reducing maintenance difficulty and water cost.

[0042] 3. This invention achieves the synergistic effect of vibration dehydration and airflow drying by setting a third conveying mechanism, vibration mechanism, and air drying mechanism with drainage holes in the draining mechanism, thereby accelerating the removal of residual moisture from the surface of scallions, improving the stability of subsequent bundling processes, and avoiding loose bundling or reduced packaging quality due to excessive moisture content.

[0043] 4. The temporary transfer mechanism in this invention, through the cooperation of the sliding structure, the steering plate and the inclined groove section, can drive the connecting shaft to achieve a composite output of translational and rotational motion using a single linear drive, thereby reducing the number of drive sources, simplifying the transmission and control structure, reducing equipment costs and improving operational reliability.

[0044] 5. The material unloading mechanism in this invention, by setting a reversible and resetable guide rod and forming an X-shaped cross-guide relationship with the arc-shaped sidewall of the tray structure, achieves the effect of gradually lifting the scallions and automatically detaching them from the tray structure during the retraction of the support frame. Thus, separation can be completed without manual intervention, significantly improving the degree of automation and the continuity of operation.

[0045] 6. By setting up a first conveying mechanism, a second conveying mechanism, a scallion leaf pressing and conveying mechanism, and symmetrically arranged tip cutting components and root cutting components, the present invention achieves the effect of stable and limited conveying and fixed-length cutting of scallions, thereby reducing the swaying amplitude during the cutting process and improving the accuracy of tip and root cutting as well as the consistency of finished product length. Attached Figure Description

[0046] Figure 1 This is a perspective view of an integrated device for washing and bundling scallions, provided as an embodiment of the present invention.

[0047] Figure 2 This is a side view of an integrated scallion washing and bundling device provided in an embodiment of the present invention.

[0048] Figure 3 This is a top view schematic diagram of an integrated scallion washing and bundling device provided in an embodiment of the present invention.

[0049] Figure 4 This is a three-dimensional schematic diagram of the spray cleaning mechanism in an embodiment of the present invention.

[0050] Figure 5 This is a partial cross-sectional view of the spray cleaning mechanism in an embodiment of the present invention.

[0051] Figure 6 This is a schematic diagram of the draining mechanism in an embodiment of the present invention (i.e.) Figure 2 (A magnified view of part A in the middle).

[0052] Figure 7 This is a three-dimensional schematic diagram of the temporary storage and transition mechanism in an embodiment of the present invention.

[0053] Figure 8 This is a schematic diagram of the internal structure of the temporary storage and transition mechanism in an embodiment of the present invention.

[0054] Figure 9 This is a schematic diagram of the second side plate in an embodiment of the present invention.

[0055] Figure 10 This is a schematic diagram illustrating the working process of the temporary storage and transition mechanism in an embodiment of the present invention.

[0056] Figure 11 This is a three-dimensional schematic diagram of the combination of the bundling and transfer mechanism, the bundling execution mechanism, and the material unloading mechanism in an embodiment of the present invention.

[0057] Figure 12 This is a side view of the combination of the bundling and transfer mechanism, the bundling execution mechanism, and the unloading mechanism in an embodiment of the present invention.

[0058] Figure 13 This is a schematic diagram illustrating the working principle of the material ejection mechanism in an embodiment of the present invention.

[0059] Reference numerals: 100, frame; 200, pretreatment mechanism; 210, first conveying mechanism; 220, second conveying mechanism; 230, onion leaf pressing and conveying mechanism; 240, tip cutting assembly; 250, root cutting assembly; 260, dust blowing mechanism; 261, swing arm; 262, swing drive module; 270, onion stem pressing assembly; 300, spray cleaning mechanism; 310, cleaning tank; 311, return water inlet; 312, sediment discharge interface; 320, spray assembly; 321, spray head; 322, water outlet pipe; 323, return water pipe; 324, pumping device; 330, tilting and lifting assembly; 33 1. Rotating shaft; 332. Chain drive assembly; 333. Bearing plate assembly; 340. Water disturbance assembly; 341. Air intake pipe; 342. Air supply equipment; 350. Filter plate; 400. Draining mechanism; 410. Third conveying mechanism; 420. Air drying mechanism; 430. Vibration mechanism; 431. Upper support; 432. Lower support; 433. Spring; 434. Mounting plate; 435. Vibration motor; 500. Temporary storage and transition mechanism; 510. Linear drive structure; 520. Base; 521. First side plate; 522. Second side plate; 523. Connecting block; 530. First guide rail; 540. Sliding structure Structure; 541, Slide plate; 542, First slider; 543, Support seat; 550, Connecting shaft; 560, Steering plate; 561, Follower structure; 562, Wheel axle; 563, Roller; 570, Steering guide groove; 571, First transverse groove section; 572, Inclined groove section; 573, Second transverse groove section; 580, Temporary storage bearing structure; 581, Connecting plate; 582, Bearing part; 600, Bundling and transfer mechanism; 610, Second guide rail; 620, Second slider; 630, Bearing frame; 631, Connecting bracket; 632, Extension plate; 633, Slot structure; 640, Feeding drive assembly; 641. 642. Lead screw; 643. Nut; 700. Feeding motor; 710. Bundling actuator; 711. Bundling bracket; 712. Main bracket; 713. Divider bracket; 714. Working trough; 715. Feed inlet; 716. Discharge outlet; 720. Notched gear ring; 730. First mounting rod; 740. Bundling drive assembly; 741. Bundling motor; 742. Drive gear; 750. Strap cutting constraint assembly; 751. Movable pressure head; 800. Unloading mechanism; 810. Receiving trough; 820. Second mounting rod; 830. Limiting frame; 831. Limiting rod; 840. Guide rod; 900. Green onion. Detailed Implementation

[0060] The present invention will be further described below with reference to the accompanying drawings.

[0061] Example

[0062] like Figure 1 and Figure 2 As shown, an integrated scallion washing and bundling device includes a frame 100, and a pretreatment mechanism 200, a spray washing mechanism 300, a draining mechanism 400, a temporary storage and transition mechanism 500, a bundling and transfer mechanism 600, a bundling execution mechanism 700, and a material return mechanism 800 mounted on the frame 100. The pretreatment mechanism 200, spray washing mechanism 300, draining mechanism 400, temporary storage and transition mechanism 500, bundling and transfer mechanism 600, bundling execution mechanism 700, and material return mechanism 800 are arranged in two layers on the frame 100. The pretreatment mechanism 200 is located on the upper layer; the spray washing mechanism 300, draining mechanism 400, temporary storage and transition mechanism 500, bundling and transfer mechanism 600, bundling execution mechanism 700, and material return mechanism 800 are located on the lower layer. The bundling execution mechanism 700 is located below the first conveying mechanism 210.

[0063] During operation, the scallion 900 passes through the pretreatment mechanism 200, the spray cleaning mechanism 300, the draining mechanism 400, the temporary storage and transition mechanism 500, the bundling and transfer mechanism 600, and the bundling execution mechanism 700 in sequence, completing the fully automated work of cutting off the tip of the scallion leaves, cutting off the root, blowing off dust, washing, draining, bundling and discharging.

[0064] like Figure 2 and Figure 3 As shown, the pretreatment mechanism 200 includes a first conveying mechanism 210, a second conveying mechanism 220, a scallion leaf pressing and conveying mechanism 230, a tip-cutting assembly 240, a root-cutting assembly 250, and a dust-blowing mechanism 260. Both the first conveying mechanism 210 and the second conveying mechanism 220 are belt conveyors. The first conveying mechanism 210 is inclined upwards in its conveying direction, and the conveyor belt has multiple partitions arranged at intervals along the conveying direction. The second conveying mechanism 220 is horizontally positioned in its conveying direction. The output end of the first conveying mechanism 210 is located above the input end of the second conveying mechanism 220, causing the scallions 900 output by the first conveying mechanism 210 to fall onto the second conveying mechanism 220.

[0065] The tip-cutting assembly 240 and the root-cutting assembly 250 have the same structure and are symmetrically arranged on both sides of the second conveying mechanism 220. Both the tip-cutting assembly 240 and the root-cutting assembly 250 include a cutting bracket, a saw blade, and a cutting drive structure. The cutting bracket is fixed to the frame 100. The cutting drive structure is a motor mounted on the cutting bracket. The saw blade is a circular saw blade and is coaxially fixed to the rotary output shaft of the cutting drive structure. The distance between the saw blades in the tip-cutting assembly 240 and the root-cutting assembly 250 is equal to the target length of the scallion 900. The length of the scallion 900 being cut is greater than the width of the second conveying mechanism 220, causing the tip and root of the scallion 900 to extend beyond the two side edges of the second conveying mechanism 220, respectively. As the scallion 900 moves on the second conveying mechanism 220, the tip-cutting assembly 240 and the root-cutting assembly 250 respectively cut off the tip and root of the scallion 900.

[0066] The scallion leaf pressing and conveying mechanism 230 is located above the second conveying mechanism 220 and on the side of the conveying centerline of the second conveying mechanism 220 near the tip-cutting component 240. The scallion leaf pressing and conveying mechanism 230 provides pressing constraint on the scallion leaves of the scallion 900 conveyed on the second conveying mechanism 220, preventing significant swaying of the scallion 900 body during tip and root cutting. The scallion leaf pressing and conveying mechanism 230 is a belt conveyor, with its working surface being the lower surface of the conveyor belt. The lower surface of the conveyor belt of the scallion leaf pressing and conveying mechanism 230 is aligned with the upper surface of the conveyor belt of the second conveying mechanism 220, leaving a conveying gap. The scallion leaves of the scallion 900 are simultaneously subjected to forward conveying forces provided by the scallion leaf pressing and conveying mechanism 230 and the second conveying mechanism 220 within the conveying gap.

[0067] In some optional embodiments, the pretreatment mechanism 200 further includes a scallion stem pressing assembly 270. The scallion stem pressing assembly 270 includes a pressing bracket and a pressing wheel. The pressing bracket is fixed to the frame 100. The pressing wheel is rotatably connected to the bottom end of the pressing bracket. The outer peripheral surface of the pressing wheel is provided with an elastic anti-slip layer. The axis of the pressing wheel is horizontal and perpendicular to the conveying direction of the second conveying mechanism 220. The bottom edge of the pressing wheel is aligned with the saw blade of the root cutting assembly 250. The pressing wheel and the upper surface of the conveyor belt of the second conveying mechanism 220 are spaced apart, and the distance is less than the average diameter of the scallion stem of the average scallion 900. The pressing wheel can press down the scallion stem when the root of the scallion 900 is cut, preventing the scallion 900 from swinging. In some further embodiments, the pressing wheel is driven to rotate by a motor, further preventing the scallion stem of the scallion 900 from being blocked by the pressing wheel.

[0068] The dust-blowing mechanism 260 is positioned directly above the second conveying mechanism 220 and higher than the scallion leaf pressing and conveying mechanism 230, and is used to blow away dust from the scallion leaves. The dust-blowing mechanism 260 includes a swing arm 261, a swing drive module 262, an air pipe (not shown in the figure), and an air supply module. The inner end of the swing arm 261 is rotatably connected to the top of the frame 100. The inner and outer ends of the swing arm 261 are located above both sides of the second conveying mechanism 220. Multiple air holes are arranged at intervals along the swing arm 261 along its length. Each air hole of the swing arm 261 is connected to the air supply module via an air pipe. The air supply module then drives each air hole to blow air downwards. The swing arm 261 is driven by the swing drive module 262 to reciprocate, thereby blowing air onto the scallion leaves 900 on the second conveying mechanism 220 to remove fine dust from their surface. The swing drive module 262 adopts a motor-driven linkage structure, specifically including a swing drive motor, a crank, a first connecting rod, a second connecting rod, and a third connecting rod. The rotation axis of the swing rod 261 is vertically set. The axis of the swing drive motor is horizontally set. The crank is fixed on the output shaft of the swing drive motor. One end of the first connecting rod is connected to the eccentric position of the crank, via a fisheye bearing. The other end of the first connecting rod is connected to one end of the second connecting rod via a connecting pin and two fisheye bearings; the other end of the second connecting rod is connected to one end of the third connecting rod via a connecting pin and two fisheye bearings; the other end of the third connecting rod is connected to the outer end of the swing rod 261 via a fisheye bearing. The continuous rotation of the swing drive motor drives the swing rod 261 to swing back and forth.

[0069] like Figure 4 and Figure 5 As shown, the spray cleaning mechanism 300 includes a cleaning tank 310, a spray assembly 320, an inclined lifting assembly 330, a water disturbance assembly 340, and a filter baffle 350. The cleaning tank 310 is fixed on the frame 100 and has an open top. The top opening of the cleaning tank 310 is located directly below the output end of the second conveying mechanism 220. The inclined lifting assembly 330 is installed inside the cleaning tank 310 and is used to tilt and convey the scallions 900 falling into the cleaning tank 310 upwards until the scallions 900 detach from the liquid surface in the cleaning tank 310 and are output to the input end of the third conveying mechanism 410 in the draining mechanism 400.

[0070] In this embodiment, the inclined lifting component 330 adopts a chain plate conveyor, which includes an inclined lifting support, two rotating shafts 331 respectively disposed at both ends of the lifting support, two chain drive components 332 disposed on both sides of the lifting support, a bearing plate group 333 laid between the two chain drive components 332, and a lifting drive motor.

[0071] The chain drive assembly 332 includes sprockets and chains. Two sprockets in the same chain drive assembly 332 are fixed to two rotating shafts 331 respectively and connected by chains. The support plate assembly 333 is formed by splicing together multiple strip-shaped support plates arranged sequentially along their width. The strip-shaped support plates are evenly distributed with through holes for water guidance. The two ends of each strip-shaped support plate are fixed to chain links aligned with each other on two chains. The support plate assembly 333 can form an inclined and continuous support surface for the scallions 900; one of the rotating shafts 331 is driven to rotate by a lifting drive motor. The scallions 900 output from the second conveying mechanism 220 will fall into the bottom of the inclined conveying surface of the inclined lifting assembly 330. Driven by the lifting drive motor, the chain drive assembly 332 drives the bearing plate assembly 333 to move in a cyclical motion along the inclined direction, continuously tilting the scallion 900 that has fallen into the cleaning tank 310 upwards and outputting it into the cleaning tank 310 until the scallion 900 falls into the top of the third conveying mechanism 410 in the draining mechanism 400.

[0072] In some embodiments, each strip-shaped support plate has baffle structures at both ends that extend beyond the conveying surface of the tilting lifting assembly 330. The baffle structures are used to constrain the scallion 900 within the tilting conveying surface range of the tilting lifting assembly 330.

[0073] The spray assembly 320 includes spray heads 321, an outlet pipe 322, a return pipe 323, and a pumping device 324. Multiple downward-facing spray heads 321 are positioned above the inclined lifting assembly 330. A return water inlet 311 is provided on the side of the cleaning tank 310. The inlet of the pumping device 324 is connected to the return water inlet 311 of the cleaning tank 310 via the return pipe 323. The outlet of the pumping device 324 is connected to the spray heads 321 via the outlet pipe 322. In this embodiment, two branch pipe structures extend from the outlet pipe 322. These branch pipe structures are horizontally positioned along the width direction of the inclined lifting assembly 330. Multiple spray heads 321 are installed at the bottom of each of the two branch pipe structures. In some embodiments, a filter structure is provided on the return water inlet 311. The filter structure is used to prevent loose onion leaves or large pieces of waste from entering the return pipe 323.

[0074] The water disturbance component 340 includes an air inlet pipe 341 and an air supply device 342. An air inlet is provided on the side of the cleaning tank 310. One end of the air inlet pipe 341 is connected to the air outlet of the air supply device 342. The other end of the air inlet pipe 341 passes through the air inlet on the side of the cleaning tank 310 and extends into the cleaning tank 310. The air inlet pipe 341 is horizontally positioned, and its outlet faces the side of the cleaning tank 310 away from the draining mechanism 400.

[0075] During operation, the air supply device 342 supplies air to the cleaning tank 310 through the air inlet pipe 341. The pumping device 324 draws out water from the cleaning tank 310 and sprays it back onto the tilting and lifting assembly 330 through the spray head 321. The gas entering the cleaning tank 310 through the air inlet pipe 341 agitates the water in the cleaning tank 310, performing a first cleaning on the scallions 900 that have fallen below the liquid surface. After the scallions 900 are lifted off the liquid surface by the tilting and lifting assembly 330, the water output from the spray head 321 sprays onto the scallions 900, achieving a second cleaning.

[0076] A horizontally arranged filter baffle 350 is fixed inside the cleaning tank 310. The filter baffle 350 divides the inner cavity of the cleaning tank 310 into an upper cleaning zone and a lower sedimentation zone. The filter baffle 350 has multiple filter holes. The air inlet and water outlet 311 on the side of the cleaning tank 310 are both higher than the filter baffle 350.

[0077] During the cleaning process, the mud and sand on the scallions 900 and the detached scallion leaves all enter the water in the cleaning zone. The mud and sand in the cleaning zone can pass through the filter holes on the filter baffle 350 and settle in the sedimentation zone. Larger waste materials such as scallion leaves remain on the filter baffle 350, reducing the cleaning difficulty of the sedimentation zone. The bottom of the inner wall of the cleaning tank 310 is connected to a mud and sand discharge port 312. The mud and sand discharge port 312 is equipped with a valve structure.

[0078] like Figure 6As shown, the draining mechanism 400 includes a third conveying mechanism 410, a drying mechanism 420, and a vibration mechanism 430. The vibration mechanism 430 is mounted on the frame 100. The third conveying mechanism 410 is mounted on the vibration mechanism 430. The vibration mechanism 430 drives the third conveying mechanism 410 to reciprocate, thereby promoting the removal of moisture adhering to the scallions 900. The vibration mechanism 430 includes a lower support 432, a spring 433, an upper support 431, a mounting plate 434, and a vibration motor 435. The lower support 432 is fixed to the frame 100. A mounting post is fixed to the lower support 432. A spring 433 is sleeved and fixed on the mounting post. The top end of the spring 433 is fixed to the upper support 431. The upper support 431 and the lower support 432 do not contact each other. The spring 433 provides elastic support for the third conveying mechanism 410. The third conveying mechanism 410 is mounted on the upper support 431. The third conveying mechanism 410 is a belt conveyor. Multiple drainage holes are arrayed on the conveyor belt of the third conveying mechanism 410 to drain water that has fallen from the scallions 900, improving the surface dryness of the scallions 900 after washing. The mounting plate 434 is fixed to the mounting bracket in the third conveying mechanism 410. The vibrating motor 435 is fixed to the mounting plate 434. An eccentric turntable is fixed to the output shaft of the vibrating motor 435, which, through its own rotation, drives the mounting plate 434 and the third conveying mechanism 410 to vibrate. The drying mechanism 420 is mounted on the frame 100. The air outlet of the drying mechanism 420 faces downwards and is directly opposite the upper surface of the third conveying mechanism 410.

[0079] During operation, the vibration motor 435 drives the third conveying mechanism 410 to vibrate up and down, further accelerating the shedding of water droplets from the scallions 900. The air-drying mechanism 420 uses a fan with its air outlet facing downwards toward the conveying surface of the third conveying mechanism 410, used to blow air onto the scallions 900 to increase the drying speed.

[0080] like Figure 10 As shown, the temporary storage and transition mechanism 500 is used to buffer the scallions 900 continuously output by the third conveying mechanism 410, and when the carrier frame 630 in the bundling and transfer mechanism 600 reaches below the temporary storage and transition mechanism 500, it sends the temporarily stored scallions 900 into the carrier frame 630 of the bundling and transfer mechanism 600. Then, the bundling and transfer mechanism 600 sends the scallions 900 to the bundling execution mechanism 700.

[0081] like Figure 7 and Figure 8As shown, the temporary storage transition mechanism 500 includes a linear drive structure 510, a base 520, a first guide rail 530, a first slider 542, a sliding structure 540, a steering plate 560, a connecting shaft 550, and a temporary storage bearing structure 580. The base 520 includes a first side plate 521, a second side plate 522, and a connecting block 523. The first side plate 521 and the second side plate 522 are spaced apart and fixed by the connecting block 523.

[0082] Two first guide rails 530 are parallel to each other and fixed at intervals on the inner side surface of the first side plate 521. The sliding structure 540 includes a slide plate 541, first sliders 542, and a support base 543. Two first sliders 542 are fixed at intervals on the side surface of the slide plate 541. The two first sliders 542 and the two first guide rails 530 respectively form sliding pairs. A through hole is opened in the middle of the slide plate 541, and a support base 543 is fixed thereon. The support base 543 is aligned with the through hole.

[0083] The connecting shaft 550 and the support seat 543 form a rotating pair via bearings. The inner end of the connecting shaft 550 passes through the slide plate 541 and is located between the slide plate 541 and the second side plate 522. One end of the steering plate 560 is fixed to the inner end of the connecting shaft 550. The outer end of the connecting shaft 550 extends beyond the first side plate 521. The temporary storage bearing structure 580 is fixed to the outer end of the connecting shaft 550, specifically with a connecting post fixed to the outer end of the connecting shaft 550. The side of the connecting post has a connecting surface. The temporary storage bearing structure 580 includes a connecting plate 581 and a bearing part 582. The connecting plate 581 and the bearing part 582 are integrally formed. The bearing part 582 is connected to the bottom of the connecting plate 581. The top of the connecting plate 581 is fixed to the connecting surface of the connecting post by bolts. The bearing part 582 has a concave arc-shaped structure on the upper surface, which can stably support the scallion 900 output by the third conveying mechanism 410. The base 520 is positioned offset from the third conveying mechanism 410 to avoid obstructing the conveying of the scallion 900.

[0084] A follower structure 561 is mounted on the steering plate 560. In this embodiment, the follower structure 561 includes an axle 562 and a roller 563. The axle 562 is fixed to the steering plate 560. The roller 563 is rotatably connected to the axle 562. The roller 563 is offset from the connecting shaft 550. The forward and backward movement of the slide plate 541 can drive the connecting shaft 550 to translate. The follower structure 561 and the steering plate 560 can drive the connecting shaft 550 to rotate.

[0085] The second side plate 522 has a steering guide groove 570. The follower structure 561 extends into the steering guide groove 570, specifically the roller 563 in the follower structure 561 is located in the steering guide groove 570.

[0086] like Figure 8 and Figure 9 As shown, the steering guide groove 570 includes a first transverse groove segment 571, an oblique groove segment 572, and a second transverse groove segment 573 connected in sequence. The length directions of the first transverse groove segment 571 and the second transverse groove segment 573 are both parallel to the length direction of the first guide rail 530. The positions of the first transverse groove segment 571 and the second transverse groove segment 573 are staggered and connected by the oblique groove segment 572. The angles formed by the oblique groove segment 572 and the first transverse groove segment 571, and the angles formed by the oblique groove segment 572 and the second transverse groove segment 573, are both obtuse angles, preferably 150°.

[0087] The first transverse groove segment 571, the inclined groove segment 572, and the second transverse groove segment 573 are all positioned below the connecting shaft 550. The inclined groove segment 572 is inclined away from the connecting shaft 550 relative to the first transverse groove segment 571. When the follower structure 561 is in the first transverse groove segment 571, the outer end of the steering plate 560 is inclined away from the second transverse groove segment 573. When the follower structure 561 is in the second transverse groove segment 573, the steering plate 560 is in a vertical state. Therefore, when the follower structure 561 moves along the inclined groove segment 572 towards the second transverse groove segment 573, the connecting shaft 550 rotates, causing the bearing portion 582 at the bottom of the temporary storage bearing structure 580 to flip downwards and dump the goods it carries.

[0088] In some embodiments, an arc-shaped transition groove is provided at the connection between the inclined groove segment 572 and the first transverse groove segment 571, and at the connection between the inclined groove segment 572 and the second transverse groove segment 573.

[0089] As the slide plate 541 moves along the first guide rail 530, the follower structure 561 moves along the steering guide groove 570. When the follower structure 561 is in the first transverse groove section 571 or the second transverse groove section 573, the forward and backward movement of the slide plate 541 only causes the connecting shaft 550 to translate, not to rotate. When the follower structure 561 is in the inclined groove section 572, the movement of the follower structure 561 in the inclined groove section 572 will change the height difference between the follower structure 561 and the connecting shaft 550, causing the steering plate 560 to rotate. Therefore, the forward and backward movement of the slide plate 541 simultaneously causes the connecting shaft 550 to translate and rotate.

[0090] The side of the temporary storage support structure 580 is close to the output end of the third conveying mechanism 410. In the initial state, the temporary storage support structure 580 abuts against the output end of the third conveying mechanism 410, so that the third conveying mechanism 410 can continuously feed the scallion 900 onto the temporary storage support structure 580.

[0091] In this embodiment, the linear guide groove 570, driven by the linear motion output by the linear drive structure 510, enables the temporary storage support structure 580 to complete a lateral movement followed by a flipping motion. Therefore, under the drive of the linear drive structure 510, the temporary storage support structure 580 first moves laterally away from the third conveying mechanism 410, and then flips, pouring the scallions 900 into the support frame 630 of the bundling and transfer mechanism 600 below. After the flipping is complete, the temporary storage support structure 580 moves laterally a certain distance away from the third conveying mechanism 410, facilitating the falling of the object on the temporary storage support structure 580.

[0092] In some embodiments, such as Figure 10 As shown, the carrier frame 630 in the bundling and transfer mechanism 600 is driven by a linear module to move laterally, transporting the objects it carries to the next process. During the movement of the carrier frame 630 in the bundling and transfer mechanism 600, the temporary storage structure 580 continues to receive and store objects, preventing situations where there is no carrier frame 630 below when objects are output. Only after the carrier frame 630 returns does the temporary storage structure 580 pour the objects into the bundling and transfer mechanism 600 below. Therefore, the temporary storage transition mechanism 500 provided in this embodiment can achieve a smooth transition between the continuous output of objects by the third conveyor and the intermittent transfer of objects by the bundling and transfer mechanism 600.

[0093] During operation, the third conveying mechanism 410 continuously feeds the scallions 900 into the temporary storage support structure 580. The temporary storage support structure 580 moves laterally and flips, pouring multiple scallions 900 into the support frame 630 of the bundling and transfer mechanism 600. The support frame 630 in the bundling and transfer mechanism 600 moves the scallions 900 to the bundling execution mechanism 700 for bundling. At this time, the third conveying mechanism 410 continues to feed the scallions 900 into the temporary storage support structure 580. Once the support frame 630 in the bundling and transfer mechanism 600 returns to below the temporary storage support structure 580, the temporary storage support structure 580 again performs a lateral movement followed by a flipping motion, pouring the scallions 900 into the support frame 630 in the bundling and transfer mechanism 600. This cycle repeats continuously, achieving continuous bundling of the scallions 900.

[0094] In some embodiments, the linear drive structure 510 may be in the form of a cylinder, an electric push rod, or a lead screw 641 module to achieve stable drive of the slide plate 541; by selecting different drive forms, the thrust and speed can be adjusted according to the actual working conditions, thereby improving the adaptability and operational reliability of the device.

[0095] like Figure 11 and Figure 12As shown, the bundling and transfer mechanism 600 includes a second guide rail 610, a support frame 630, and a transfer drive mechanism. The second guide rail 610 is fixed to the frame 100 and slidably connected to a second slider 620. The transfer drive mechanism includes a lead screw 641, a nut 642, and a feeding motor 643. The two ends of the lead screw 641 are rotatably connected to the frame 100 via bearing seats. The output shaft of the feeding motor 643 is fixed to the frame 100, and the output shaft is fixed to one end of the lead screw 641. The nut 642 is screwed onto the lead screw 641. The support frame 630 includes a connecting bracket 631, two extension plates 632, and two support structures 633. Opposite ends of the bottom surfaces of the two extension plates 632 are fixed to the nut 642 and the second slider 620, respectively. Adjacent ends of the bottom surfaces of the two extension plates 632 are fixed to the bottoms of the two support structures 633, respectively. In this embodiment, the extension plate 632 and the support structure 633 are integrated. The distance between the lead screw 641 and the second guide rail 610 is greater than the length of the bundled scallions 900; the design of the extension plate 632 ensures that the lead screw 641 and the second guide rail 610 will not obstruct the falling of the bundled scallions 900.

[0096] The bottoms of the two bracket structures 633 are fixed to both ends of the connecting bracket 631, allowing the entire support frame 630 to move synchronously. The connecting bracket 631 is a U-shaped rod with its opening facing upwards. The crossbar of the U-shaped rod is positioned lower than the bundling bracket 710 to prevent interference between the support frame 630 and the bundling bracket 710 when the support frame 630 moves toward the bundling actuator 700.

[0097] The tray structure 633 is U-shaped. Two tray structures 633 are spaced apart and aligned with each other, respectively used to support the two ends of the bundled scallions 900. The two tray structures 633 can be moved to the left and right sides of the bundling actuator 700, respectively.

[0098] Of the two inner walls of the tray structure 633, the inner wall closer to the bundling actuator 700 is arc-shaped, while the inner wall away from the bundling actuator 700 is vertical. Specifically, the arc-shaped inner wall closer to the bundling actuator 700 gradually approaches the center of the tray structure 633 from top to bottom, which can reduce the resistance to the oblique force pushing the scallion 900 to rise.

[0099] The bundling actuator 700 includes a bundling bracket 710, a notched gear ring 720, a first mounting rod 730, and a bundling drive assembly 740. The bundling bracket 710 includes a main body bracket 711 and a partition bracket 712, both independent of each other. Both the main body bracket 711 and the partition bracket 712 are fixed to the frame 100. The main body bracket 711 has a bundling area. The inner wall of the bundling area is arc-shaped. The angle corresponding to the arc-shaped inner wall of the bundling area is 270°, forming an opening structure on the main body bracket 711. The opening structure faces diagonally downwards. The angle corresponding to the opening structure on the bundling area is 90°. The two edges of the opening structure are perpendicular to each other, namely a horizontal upper edge at the top and a vertical lower edge at the bottom.

[0100] The separator bracket 712 is fixed to the frame 100. The separator bracket 712 is located in the center of the opening structure of the main support 711. The separator bracket 712 is spaced apart from the upper edge of the opening structure to form the feed inlet 714 of the bundling bracket 710; the separator bracket 712 is spaced apart from the lower edge of the opening structure to form the discharge outlet 715 of the bundling bracket 710. The feed inlet 714 is aligned with the support frame 630.

[0101] The notched toothed ring 720 is rotatably connected to the bundling bracket 710, and its axis is horizontally positioned. The notched toothed ring 720 has a notch structure with a width matching that of the feed inlet 714. The scallion 900 supported on the support frame 630 can enter the bundling area of ​​the bundling bracket 710 through the feed inlet 714 and the notch structure of the notched toothed ring 720. In this embodiment, the notched toothed ring 720 is rotatably connected via a roller support structure mounted on the bundling bracket 710. In some other embodiments, the notched toothed ring 720 can also be rotatably connected via other existing connection structures.

[0102] The first mounting rod 730 is fixed to the side of the notched toothed ring 720. A bundling tape roll (not shown in the figure) is sleeved on the first mounting rod 730; by driving the notched toothed ring 720 to rotate, the bundling tape roll rotates around the scallion 900 in the bundling area, realizing the bundling tape winding operation on the scallion 900. In this embodiment, the bundling tape roll is made of adhesive tape or a plastic film that can be electrostatically attracted.

[0103] In this embodiment, the separating bracket 712 includes three guide plates arranged at intervals. The three guide plates are fixed together by connecting rods. The edge of each guide plate near the center of the bundling area is a concave arc edge. This multi-plate spacing design increases the width of the separating bracket 712, allowing the scallion 900 to slide down along the arc edge of the three guide plates into the receiving trough 810 after detaching from the tray structure 633, without tipping over due to insufficient fulcrum. This design ensures the consistency of the scallion 900's posture when falling into the receiving trough 810 after bundling.

[0104] The notched gear ring 720 is driven to rotate by the baling drive assembly 740. The baling drive assembly 740 includes a baling motor 741, a belt drive assembly, two axles 562, and two drive gears 742. The two axles 562 are rotatably connected to two through holes in the main support 711. The two drive gears 742 are fixed to the two axles 562. The two drive gears 742 mesh with two different positions of the notched gear ring 720. The belt drive assembly includes the baling motor 741, a synchronous belt, and three synchronous pulleys. The baling motor 741 is fixed to the main support 711. Two synchronous pulleys are fixed to the two axles 562. The third synchronous pulley is fixed to the output shaft of the baling motor 741. The three synchronous pulleys are connected by a synchronous belt. The synchronous pulleys and drive gears 742 are located on opposite sides of the main support 711.

[0105] During the bundling process, the bundling motor 741 drives two drive gears 742 to rotate via a belt drive assembly. The two drive gears 742 drive the notched gear ring 720 to rotate. The angle between the central axes of the two drive gears 742 and the axis of the notched gear ring 720 is greater than the angle between the two edges of the notched structure of the notched gear ring 720 and the axis of the notched gear ring 720, thereby preventing the notched gear ring 720 from losing power when both drive gears 742 are simultaneously within the range of the notched gear ring 720.

[0106] The unloading mechanism 800 includes a receiving trough 810, a second mounting rod 820, a limiting frame 830, and a guide rod 840. The receiving trough 810 is fixed to the frame 100, and its top opening is aligned with the discharge port 715 of the bundling bracket 710. The receiving trough 810 is used to receive bundled scallions 900 falling from the discharge port 715 of the bundling bracket 710.

[0107] The second mounting rod 820 is horizontally oriented and fixed to the main support 711 at its center. The second mounting rod 820 is located above the feed inlet 714 of the bundling bracket 710. Two limiting brackets 830 are respectively fixed to both ends of the second mounting rod 820.

[0108] The top ends of the two guide rods 840 are rotatably connected to two limiting frames 830 respectively. Each limiting frame 830 is provided with a horizontal limiting rod 831. The limiting rod 831 is located below the rotation center of the corresponding guide rod 840; the outer side of the guide rod 840 abuts against the limiting rod 831. Supported by the limiting rod 831, the guide rod 840 initially maintains a downward tilt, specifically: in the direction of gravity (from top to bottom), the inner side of the guide rod 840 gradually approaches the center of the bundling area.

[0109] During the process of feeding the scallion 900 from the feed inlet 714 of the bundling bracket 710 into the bundling area, the scallion 900 pushes the two guide rods 840 upwards. After the scallion 900 passes the bottom of the guide rods 840, the guide rods 840 flip downwards and reset under the action of gravity, closing the feed inlet 714 of the bundling bracket 710.

[0110] like Figure 13 As shown, after the scallion 900 completes the bundling operation, the support frame 630 in the bundling and transfer mechanism 600 moves outward and resets under the drive of the transfer drive mechanism. The scallion 900, however, is blocked by the guide rod 840 and cannot leave the feed inlet 714 of the bundling bracket 710. Simultaneously, an X-shaped cross structure is formed between the inclined guide rod 840 and the arc-shaped sidewall of the tray structure 633, and the cross point gradually moves upward. Guided by the guide rod 840, the scallion 900 rises in position as the cross point moves upward, until it passes the top of the tray structure 633, thus separating the scallion 900 from the tray structure 633.

[0111] In the initial state, the bottom of the guide rod 840 is lower than the lower edge of the feed inlet 714 of the bundling bracket 710, so that the guide rod 840 can prevent the scallion 900 from leaving the bundling area from the feed inlet 714.

[0112] In some embodiments, during the process of the scallion 900 entering the bundling area through the feed inlet 714 of the bundling bracket 710, the notch structure of the notched toothed ring 720 is aligned with the feed inlet 714 of the bundling bracket 710 to prevent the notched toothed ring 720 from blocking the scallion 900 from entering the bundling area; during the process of the scallion 900 leaving the bundling area through the discharge outlet 715 of the bundling bracket 710, the notch structure of the notched toothed ring 720 is aligned with the discharge outlet 715 of the bundling bracket 710 to prevent the notched toothed ring 720 from blocking the scallion 900 from leaving the bundling area.

[0113] In some embodiments, the two inner sidewalls of the slot structure 633 are both arc-shaped. The tangent angle of the top of the arc-shaped inner sidewall of the slot structure 633 away from the bundling actuator 700 is greater than the angle of the outer side of the guide rod 840, thereby preventing the scallion 900 from being squeezed out of the slot structure 633 by the guide rod 840 during its entry into the bundling area from the feed inlet 714. The angle is the angle relative to the horizontal plane.

[0114] In some embodiments, a torsion spring is connected between the guide rod 840 and the limiting frame 830. The torsion spring provides a spring force to the guide rod 840 to rotate toward the limiting rod 831, thereby facilitating the reset of the guide rod 840.

[0115] In some embodiments, the automatic feeding and bundling device performs bundling operations based on the following working principle:

[0116] First, the temporary storage mechanism 500 pours the scallions 900 it carries onto the two tray structures 633 of the support frame 630, forming a stable support state with both ends supported. The feeding motor 643 in the transfer drive mechanism drives the lead screw 641 to rotate, causing the nut 642 to move axially along the lead screw 641, thereby driving the support frame 630 and the scallions 900 to move forward along the direction of the second guide rail 610. During the movement, the scallions 900 exert a pushing force on the guide rod 840 located at the feed inlet 714 of the bundling bracket 710, causing the guide rod 840 to rotate upward around its rotation connection point, thereby opening the feeding channel and allowing the scallions 900 to smoothly enter the bundling area.

[0117] Once the scallion 900 has fully entered the bundling area, the guide rod 840 returns to its initial tilted state under its own gravity, forming a closed structure around the feed inlet 714. This prevents the scallion 900 from retracting in subsequent processes and provides guidance and constraint for its subsequent removal from the tray.

[0118] The bundling stage then begins. The bundling motor 741 in the bundling drive assembly 740 drives two axles 562 to rotate synchronously via a synchronous belt, which in turn drives two drive gears 742 to mesh and continuously rotate the notched gear ring 720. Since the notched gear ring 720 has a first mounting rod 730 fixed to its side, the bundling tape roll rotates synchronously around the center of the bundling area, thus wrapping around the scallions 900 located within the bundling area.

[0119] After bundling is completed, the bundling and transfer mechanism 600 reverses its movement, and the support frame 630 retracts away from the bundling bracket 710 under the drive of the lead screw 641. At this time, since the guide rod 840 is already in the downward-folded state, the scallion 900 cannot exit with the tray structure 633 and is restricted within the bundling area. At the same time, the arc-shaped inner wall of the tray structure 633 near the bundling execution mechanism 700 and the inclined guide rod 840 form an X-shaped cross-guiding relationship. As the support frame 630 moves backward, the cross point gradually moves upward, generating an upward supporting force on the scallion 900, causing the scallion 900 to gradually rise.

[0120] As the support frame 630 continues to move backward, the scallion 900 is eventually lifted to a position higher than the upper edge of the tray structure 633, thus achieving automatic separation from the tray structure 633. After separation, the scallion 900 falls from the discharge port 715 of the bundling bracket 710 into the receiving trough 810 below under its own weight, completing the discharge process.

[0121] In some non-essential embodiments, the bundling actuator 700 further includes a strapping cutter constraint assembly 750. The strapping cutter constraint assembly 750 includes a linear module, a movable pressure head 751, a fixed pressure head, and a blade. The linear module is horizontally positioned and fixed to the frame 100. The fixed pressure head is fixed to the frame 100. The linear module has a push rod capable of axial extension and retraction. The movable pressure head 751 is fixed to the outer end of the push rod. The blade is fixed to the side of the movable pressure head 751, with the cutting edge facing the side closer to the fixed pressure head.

[0122] In a non-essential embodiment, the linear module's push rod drives the movable pressure head 751 to move in a direction parallel to the central axis of the notched gear ring 720. Driven by the linear module, the movable pressure head 751 contacts or separates from the fixed pressure head. The movable pressure head 751 is positioned above the top of the support frame 630. The linear module employs an electric push rod structure, a hydraulic cylinder, or a pneumatic cylinder; in this embodiment, an electric push rod is preferred. The outer casing end cap of the linear module directly serves as the fixed pressure head.

[0123] In a non-essential embodiment, when the push rod of the linear module retracts, the movable pressure head 751 contacts the fixed pressure head, and both the push rod and the movable pressure head 751 are offset from the winding area of ​​the strapping tape. Neither the push rod nor the movable pressure head 751 obstructs the winding action of the strapping tape. When the push rod of the linear module extends, the movable pressure head 751 separates from the fixed pressure head, and the push rod is aligned with the winding area of ​​the strapping tape. The winding action of the strapping tape passes through the push rod, thereby placing the strapping tape between the movable pressure head 751 and the fixed pressure head; at this point, retracting the push rod cuts the strapping tape and clamps the end of the strapping tape connecting the main body of the strapping tape roll between the movable pressure head 751 and the fixed pressure head.

[0124] In the optional embodiment, the strapping cutter constraint component 750 serves to continuously automate the strapping action, eliminating the need for manual pulling of the strapping onto the scallion 900 each time it enters the strapping area, and for manual cutting of the strapping after strapping is completed. The working process of the strapping actuator 700 is as follows: Initially, the linear module is in a retracted state, and neither the push rod nor the movable pressure head 751 obstructs the winding action of the strapping. During the last turn of the winding action, the push rod of the linear module extends, and the strapping contacts the push rod during winding, but does not wrap around the push rod more than half a turn (to prevent the strapping from failing to detach from the push rod). Then, the notched toothed ring 720 stops rotating, the linear module retracts to cut the strapping, and clamps the end of the strapping extending from the main body of the strapping roll. The scallion 900 in the strapping area is then able to freely leave the strapping area after strapping is completed. In the next bundling cycle, a new batch of scallions 900 enters the working area and is bundled by rotating the notched toothed ring 720. On the last turn of bundling, the push rod of the linear module extends, releasing the end of the bundling tape between the movable pressure head 751 and the fixed pressure head. The new bundling tape contacts the push rod of the linear module during the winding process. The linear module then retracts to cut the bundling tape and clamps the end of the newly generated bundling tape. This cycle is repeated to achieve continuous automatic bundling.

Claims

1. A scallion washing and bundling integrated device, comprising a frame (100), and a spray washing mechanism (300) and a draining mechanism (400) mounted on the frame (100); characterized in that: It also includes a temporary storage and transfer mechanism (500), a bundling and transfer mechanism (600), a bundling execution mechanism (700), and a material return mechanism (800); The spray cleaning mechanism (300) includes a cleaning tank (310), a spray assembly (320), an inclined lifting assembly (330), a water disturbance assembly (340), and a filter baffle (350); the inclined lifting assembly (330) is configured to: tilt and lift the scallions in the cleaning tank (310) upward to the draining mechanism (400); The water disturbance component (340) is configured to: disturb the water in the cleaning tank (310); The spray assembly (320) is configured to spray water onto the scallions conveyed on the tilting and lifting assembly (330); The draining mechanism (400) includes a third conveying mechanism (410) and a vibration mechanism (430); the third conveying mechanism (410) is mounted on the vibration mechanism (430); the conveying surface of the third conveying mechanism (410) is provided with draining holes; the vibration mechanism (430) is configured to drive the third conveying mechanism (410) to reciprocate. The temporary storage and transition mechanism (500) is configured to: receive the green onions output by the draining mechanism (400) and send the green onions it receives onto the bundling and transfer mechanism (600) via a support frame (630); The bundling and transfer mechanism (600) includes a support frame (630) and a feeding drive assembly (640) for driving the support frame (630) to move; the support frame (630) is provided with two slot structures (633) at intervals; The bundling actuator (700) is provided with a feed inlet (714) and a discharge outlet (715); the feed inlet (714) is located on the moving path of the scallions supported on the support frame (630); The unloading mechanism (800) includes a limiting frame (830) and a guide rod (840); the top end of the guide rod (840) is rotatably connected above the feed inlet (714) of the bundling actuator (700); the limiting frame (830) provides a limit on the guide rod (840) in the rotation direction, so that the guide rod (840) is in an inclined posture in the initial state, gradually approaching the bundling area in the bundling actuator (700) from top to bottom.

2. The integrated scallion washing and bundling device according to claim 1, characterized in that: It also includes a pretreatment mechanism (200); the pretreatment mechanism (200) includes a first conveying mechanism (210), a second conveying mechanism (220), a tip cutting assembly (240), a root cutting assembly (250), and a dust blowing mechanism (260); the first conveying mechanism (210) and the second conveying mechanism (220) are both belt conveyors and are arranged sequentially; the second conveying mechanism (220) is located above the cleaning tank (310); the conveying direction of the first conveying mechanism (210) is inclined upward, and the conveyor belt is provided with multiple partitions arranged sequentially and at intervals along the conveying direction; the tip cutting assembly... The component (240) and the root cutting component (250) are symmetrically arranged on both sides of the second conveying mechanism (220), respectively configured to cut off the tips of the scallion leaves and the roots of the scallions conveyed on the second conveying mechanism (220); the dust blowing mechanism (260) includes a swing rod (261) and a swing drive module (262); one end of the swing rod (261) is rotatably connected to the frame (100); the swing drive module (262) is used to drive the swing rod (261) to swing back and forth above the second conveying mechanism (220); the swing rod (261) has multiple air holes; each air hole is connected to the air supply module through an air pipe.

3. The integrated scallion washing and bundling device according to claim 2, characterized in that: The pretreatment mechanism (200) further includes a scallion leaf pressing and conveying mechanism (230); the scallion leaf pressing and conveying mechanism (230) is a belt conveyor located above the second conveying mechanism (220); the gap between the upper surface of the conveyor belt of the second conveying mechanism (220) and the lower surface of the conveyor belt of the scallion leaf pressing and conveying mechanism (230) forms a scallion conveying channel; the pretreatment mechanism (200) further includes a scallion stem pressing assembly (270); the scallion stem pressing assembly (270) includes a pressing bracket and a pressing wheel; the pressing bracket is fixed to the frame (100); the pressing wheel is rotatably connected to the bottom end of the pressing bracket; the outer peripheral surface of the pressing wheel is provided with an elastic anti-slip layer; the pressing wheel is spaced apart from the upper surface of the conveyor belt of the second conveying mechanism (220); the position of the pressing wheel corresponds to the root cutting assembly (250), so that when the root cutting assembly (250) cuts the scallion root, the pressing wheel presses against the scallion.

4. The integrated scallion washing and bundling device according to claim 1, characterized in that: The tilting and lifting assembly (330) includes two chain drive assemblies (332) and a support plate assembly (333) laid between the two chain drive assemblies (332); the support plate assembly (333) includes multiple strip-shaped support plates that circulate with the chain drive assemblies (332); the strip-shaped support plates have through holes; the spray assembly (320) includes a spray head (321), a water outlet pipe (322), a water return pipe (323), and a pump device (324); the multiple downward-facing spray heads (321) are all located above the tilting and lifting assembly (330); the side of the cleaning tank (310) is provided with a water return port (311); the inlet of the pump device (324) is connected to the water return port (311) of the cleaning tank (310) through the water return pipe (323); the outlet of the pump device (324) is connected to the spray head (321) through the water outlet pipe (322); The water disturbance component (340) includes an air inlet pipe (341) and an air supply device (342); the side of the cleaning tank (310) is provided with an air inlet; one end of the air inlet pipe (341) is connected to the air outlet of the air supply device (342); the other end of the air inlet pipe (341) passes through the air inlet on the side of the cleaning tank (310) and extends into the cleaning tank (310); the air inlet pipe (341) is horizontally arranged, and the outlet faces the side of the inner cavity of the cleaning tank (310) away from the draining mechanism (400).

5. The integrated scallion washing and bundling device according to claim 4, characterized in that: A filter baffle (350) is fixed inside the cleaning tank (310); the filter baffle (350) divides the inner cavity of the cleaning tank (310) into an upper cleaning zone and a lower sedimentation zone; the air inlet and water outlet (311) on the side of the cleaning tank (310) are both located in the cleaning zone; the bottom of the sedimentation zone is connected to a mud and sand discharge port (312).

6. The integrated scallion washing and bundling device according to claim 1, characterized in that: The vibration mechanism (430) includes a lower support (432), a spring (433), an upper support (431), a mounting plate (434), and a vibration motor (435); the lower support (432) is fixed on the frame (100); the upper support (431) and the lower support (432) are connected by the spring (433); the third conveying mechanism (410) is mounted on the upper support (431); the mounting plate (434) is fixed on the bottom of the third conveying mechanism (410); the vibration motor (435) is fixed on the mounting plate (434) and is used to drive the third conveying mechanism (410), which is elastically supported by the spring (433), to reciprocate; the draining mechanism (400) also includes a drying mechanism (420); the air outlet of the drying mechanism (420) faces the conveying surface of the third conveying mechanism (410).

7. The integrated scallion washing and bundling device according to claim 1, characterized in that: The temporary storage transition mechanism (500) includes a linear drive structure (510), a base (520), a sliding structure (540), a connecting shaft (550), a steering plate (560), and a temporary storage bearing structure (580). The sliding structure (540) is slidably connected to the base (520) and driven by the linear drive structure (510). The connecting shaft (550) is rotatably connected to the sliding structure (540). The temporary storage bearing structure (580) is fixed to the connecting shaft (550). The steering plate (560) is fixed to the connecting shaft (550). A steering guide groove (570) is provided on the base (520). A steering guide groove (570) is connected to the steering plate (560) for rotation. The guide groove (570) includes a follower structure (561) in the guide groove (570); the guide groove (570) includes a first transverse groove segment (571) and an oblique groove segment (572) connected in sequence; the length direction of the first transverse groove segment (571) is parallel to the sliding direction of the sliding structure (540); the first transverse groove segment (571) is located on the side of the oblique groove segment (572) close to the draining mechanism (400); during the process of the linear drive structure (510) driving the sliding structure (540) away from the draining mechanism (400), the follower structure (561) enters the oblique groove segment (572) from the first transverse groove segment (571), and the temporary storage bearing structure (580) first moves laterally and then flips to output the green onion.

8. The integrated scallion washing and bundling device according to claim 1, characterized in that: The bundling actuator (700) includes a bundling bracket (710), a notched gear ring (720), a first mounting rod (730), and a bundling drive assembly (740); the bundling bracket (710) includes a main bracket (711) and a partition bracket (712); both the main bracket (711) and the partition bracket (712) are fixed on the frame (100); the main bracket (711) has a bundling area; the main bracket (711) has an opening facing diagonally downwards. Structure; the dividing bracket (712) is located within the opening structure of the main bracket (711), dividing the opening structure of the main bracket (711) into an inlet (714) and an outlet (715); the notched toothed ring (720) is rotatably connected to the bundling bracket (710); the first mounting rod (730) is connected to the side of the notched toothed ring (720); the mounting rod is used to fit the bundling tape roll; the notched toothed ring (720) is driven to rotate by the bundling drive assembly (740).

9. The integrated scallion washing and bundling device according to claim 8, characterized in that: The bundling actuator (700) further includes a strapping cut constraint assembly (750); the strapping cut constraint assembly (750) includes a linear module, a movable pressure head (751), a fixed pressure head, and a blade; the linear module and the fixed pressure head are mounted on a frame (100); the linear module is provided with a push rod; the movable pressure head (751) is fixed to the outer end of the push rod; The linear module drives the push rod to enter or exit the bundling area; When the linear module is out of the bundling area, the movable pressure head (751) is in contact with the fixed pressure head; The blade is fixed to the side of the movable pressure head (751), with the cutting edge facing the side closer to the fixed pressure head.

10. A method for integrated washing and bundling of scallions, characterized in that: Using the integrated scallion washing and bundling device as described in claim 8; The integrated method for washing and bundling scallions includes: The scallions to be processed enter the cleaning tank (310); The water disturbance component (340) disturbs the water body to perform primary cleaning of the scallions being treated; The tilting and lifting component (330) drives the scallions to tilt upward and convey them above the water surface, and the spraying component (320) sprays water onto the scallions for secondary cleaning; The tilting lifting component (330) outputs the scallions to the third conveying mechanism (410) in the draining mechanism (400); the vibration mechanism (430) drives the third conveying mechanism (410) to vibrate, shaking off the water adhering to the scallions; The third conveying mechanism (410) outputs the scallions to the temporary storage and transition mechanism (500); When the support frame (630) in the bundling and transfer mechanism (600) reaches below it, the temporary storage and transfer mechanism (500) sends the scallions onto the support frame (630); The bundling and transfer mechanism (600) feeds the scallions from the feed inlet (714) of the bundling bracket (710) into the bundling area; during the process of the scallions entering the bundling area, they push the guide rod (840) to flip and then reset; The bundling drive assembly (740) drives the notched toothed ring (720) to rotate, and the bundling tape roll mounted on the first mounting rod (730) releases the bundling tape, which is wrapped around the scallion; The notched toothed ring (720) rotates until the notched structure is aligned with the discharge port (715); the support frame (630) in the bundling and transfer mechanism (600) moves downward to the temporary storage transition mechanism (500), the scallion is blocked by the guide rod (840), and an X-shaped cross guide structure is formed between the inner wall of the support frame (630) and the inclined guide rod (840). During the movement of the support frame (630), the intersection point of the X-shaped cross guide structure moves upward, generating an upward supporting force on the scallion, causing the scallion to gradually rise until the scallion is removed from the support frame (630) and output from the discharge port (715) of the bundling bracket (710).

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