Allium fistulosum picking and packing integrated machine

Abstract

The application provides a big green onion picking and packing integrated machine, and belongs to the technical field of agricultural machinery. It solves the problems of traditional big green onion processing methods, high labor intensity, low manual efficiency and low economic benefits. The big green onion picking and packing integrated machine comprises a conveying device, a positioning and leaf cutting device, a grading device and a bundling device. The positioning and leaf cutting device is used for positioning and correcting the big green onion. The conveying device is used for clamping and removing the big green onion and conveying the big green onion backward and upward. In the conveying process, the positioning and leaf cutting device cuts the leaves of the big green onion. A plurality of grading devices are sequentially arranged on the frame. The grading devices are used for distinguishing and classifying the big green onions with different diameters. The bottom of each grading device is provided with a bundling device. The bundling device is used for gathering and bundling the big green onions. The big green onion picking and packing integrated machine has the advantages of improving the efficiency of big green onion harvesting and post-processing, improving the agricultural production efficiency and reducing the labor cost.

Description

Technical Field

[0001] This invention relates to the field of agricultural machinery technology, specifically to a scallion harvesting and packaging machine. Background Technology

[0002] As an important economic crop, scallions occupy an important position in agricultural production. The traditional scallion processing process, including harvesting, leaf cutting, grading, and bundling, mostly relies on manual operation. This traditional method has many problems: (1) High labor intensity: Long hours of physical labor can easily cause workers to become fatigued, affecting production efficiency and processing quality. (2) Low manual efficiency: When faced with the needs of large-scale production, it is impossible to complete the processing quickly, leading to production bottlenecks.

[0003] Currently, most mechanized scallion harvesting equipment, both domestically and internationally, consists of large-scale harvesters. The production process of scallion harvesters is relatively complex, and their prices are relatively high, representing a significant investment for small-scale farmers. Furthermore, the lack of effective mechanized post-harvest processing equipment makes standardization and regulation of quality control during scallion processing difficult, resulting in inconsistent product quality and impacting market competitiveness. Simultaneously, the heavy reliance on manual labor leads to substantial labor resource consumption, hindering the rational allocation and utilization of labor resources and resulting in low economic efficiency. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides an integrated machine for harvesting and packaging scallions. This machine improves the efficiency of scallion harvesting and post-processing, enhances agricultural production efficiency, and reduces labor costs. It solves the problems of traditional scallion processing methods, which suffer from high labor intensity (prolonged physical labor easily leads to worker fatigue, affecting production efficiency and processing quality), low manual efficiency (unable to complete processing quickly when facing large-scale production demands, resulting in production bottlenecks), and low economic benefits.

[0006] (II) Technical Solution

[0007] To achieve the aforementioned goals of improving the efficiency of scallion harvesting and post-processing, increasing agricultural production efficiency, and reducing labor costs, this invention provides the following technical solution: a scallion harvesting and packaging integrated machine, comprising a conveying device, a positioning and leaf-cutting device, a grading device, and a bundling device. The conveying device is mounted on a frame, and the positioning and leaf-cutting device is positioned at the starting position of the conveying device. The positioning and leaf-cutting device is used to position and correct the scallions. The conveying device is used to clamp and pull out the scallions and convey them backward and upward. During the conveying process, the positioning and leaf-cutting device cuts the leaves of the scallions. Several grading devices are sequentially arranged on the frame. The grading devices are used to distinguish and classify scallions of different diameters. Each grading device has a bundling device at its bottom, which is used to gather the scallions and bundle them.

[0008] Preferably, a storage frame is provided on the frame behind the conveying device. The conveying device includes two conveying supports, which are arranged opposite each other. Each conveying support has a pulley at both ends, and a harvesting belt is wound between the two pulleys. The distance between the harvesting belts on the two conveying supports is less than the diameter of the scallion root.

[0009] Preferably, a support frame is provided on the bottom frame of the conveying device, and a soil-cleaning brush is rotatably mounted on the support frame. A motor is also provided on the outside of the support frame, and the motor is connected to the soil-cleaning brush. The soil-cleaning brush is used to clean the soil carried by the roots of the scallions during the conveying process.

[0010] Preferably, the positioning and cutting device includes a mounting frame, which has two pairs of frames respectively mounted on both sides of the conveying device. The mounting frame is provided with a mounting plate, and the bottom of the mounting plate is provided with a straightening brush. There is a gap between the two straightening brushes. A motor is provided at the end of the straightening brush near the conveying bracket. The two straightening brushes rotate in the direction of rotation from the outside to the inside.

[0011] Preferably, a second motor is provided on one side of the mounting plate. The second motor is fixedly mounted on the mounting plate by a motor bracket. A leaf-cutting blade is provided on the second motor, and the leaf-cutting blade covers the gap between the two straightening brushes.

[0012] Preferably, the frame is provided with a primary crossbar and a secondary crossbar, and a delivery slot is provided between the primary crossbars.

[0013] Preferably, a grading device is provided between the first-level crossbars on both sides of the frame. The grading device includes a grading basket erected at the bottom of the frame. Two bearing seats are provided at the bottom of each first-level crossbar. A grading shaft is provided between the corresponding bearing seats. A grading brush is provided on the grading shaft. A grading pulley is provided on each bearing seat on one side. A grading belt is provided between the grading pulleys on one side.

[0014] Preferably, a grading device is provided between the secondary crossbars on both sides of the frame, and a grading belt is provided between the grading device between the primary crossbars and the grading device between the secondary crossbars. The grading belt is respectively provided on the grading shafts of the two grading devices that are close to each other. A guide anti-fall plate is provided in the middle of the grading belt, and the two sides of the guide anti-fall plate are fixedly connected to the frame.

[0015] Preferably, the binding device includes a gathering seat, which is fixedly installed on the grading basket. The grading basket is provided with a mounting platform, an electric telescopic rod is provided above the mounting platform, a push plate is provided on the electric telescopic rod, a supporting tape outer plate is provided in the middle of the grading basket, an tape inner plate is rotatably provided on the supporting tape outer plate, a notch one is provided on the supporting tape outer plate, and a notch two is provided on the tape inner plate.

[0016] Preferably, at least three drive sleeves are evenly arranged on one side of the outer plate of the supporting tape, and two limiting sleeves are arranged on the inner side of the outer plate of the supporting tape on the inner side of each drive sleeve. The inner plate of the tape is stuck between the drive sleeve and the limiting sleeve. A motor is arranged on the other side of the outer plate of the supporting tape, and the motor is connected to the drive sleeve. A triangular limiting frame is also provided on the outer plate of the supporting tape. The triangular limiting frame abuts against the outer side of the inner plate of the tape. A tape placement rod is provided on the bottom corner of the triangular limiting frame. A tape sticking rod is provided on the inner plate of the tape.

[0017] (III) Beneficial Effects

[0018] Compared with the prior art, the present invention provides a scallion harvesting and packaging machine, which has the following beneficial effects:

[0019] This scallion harvesting and packaging machine works by combining a frame, a conveying device, a positioning and leaf-cutting device, a grading device, and a bundling device.

[0020] During the harvesting of scallions, the scallion harvesting device moves along the scallion planting path. As it moves forward, two straightening brushes at the front of the positioning and cutting device first gather the upper part of the scallion between the brushes. Then, because the two straightening brushes rotate from the outside in, the scallions between the brushes are continuously straightened upwards, ensuring they remain vertical. As the conveyor moves forward, two harvesting belts at the bottom of the device contact the roots of the scallions near the ground. After the two harvesting belts grasp the roots, the roots are pulled out as the device moves forward, and the soil-covered roots are cleaned by cleaning brushes. Simultaneously, as the scallions move with the conveyor, the leaves at the top of the scallions are also cut by the cutting blades. Finally, the processed scallions are transported to a storage box.

[0021] The scallions (white part only), which have already undergone leaf cutting and are stored in the storage box, are placed in the feeding trough. The scallion whites will slowly roll down to the grading device between the first-level horizontal bars. Taking Zhangqiu scallions as an example, this grading device selects scallion whites with a diameter of 1-2 cm. The grading brushes on this device rotate counterclockwise under the drive of the grading pulleys. Scallion whites with a diameter less than 2 cm will fall between the two grading brushes and be collected and bundled by the bundling device. Scallion whites with a diameter greater than 2 cm will be pushed by the grading brushes to the first grading belt on both sides and the guide anti-fall plate. Guided by the first grading belt and the guide anti-fall plate, the scallion whites roll down to the grading device between the second-level horizontal bars. Similarly, this grading device selects scallion whites with a diameter of 2-3 cm. Scallion whites with a diameter greater than 3 cm are pushed forward by the grading brushes and fall into the last bundling device, thus selecting scallion whites with a diameter greater than 3 cm.

[0022] After being sorted by the grading device, the scallion whites fall onto the outer plate of the support tape through notches one and two. As more and more scallion whites are collected, once a certain quantity is reached, the electric telescopic rod pushes the pusher to straighten one end of the scallion whites. After straightening, the three motors drive the sleeve to rotate, which in turn causes the inner plate of the tape to rotate. Before the inner plate of the tape begins to rotate, tape is placed on the tape placement rod, with the starting section of the tape adhered to the tape sticking rod on the inner plate of the tape, with the adhesive side facing upwards. Once the inner plate of the tape begins to rotate, the tape sticking rod causes the tape to wrap around the scallion whites. After wrapping, the entire bundle of scallion whites can be removed from the side.

[0023] This achieves the effects of improving the efficiency of scallion harvesting and post-processing, increasing agricultural production efficiency, and reducing labor costs. Attached Figure Description

[0024] Figure 1This is a schematic diagram of the structure of a scallion harvesting and packaging machine according to the present invention;

[0025] Figure 2 This is a schematic diagram of the conveying device and positioning leaf-cutting device of the integrated scallion harvesting and packaging machine of the present invention;

[0026] Figure 3 This is a schematic diagram of the positioning and leaf-cutting device and conveying device of the integrated scallion harvesting and packaging machine of the present invention;

[0027] Figure 4 This is a schematic diagram of the positioning and leaf-cutting device of a scallion harvesting and packaging integrated machine according to the present invention. Figure I ;

[0028] Figure 5 This is a schematic diagram of the positioning and leaf-cutting device of a scallion harvesting and packaging integrated machine according to the present invention. Figure II ;

[0029] Figure 6 This is a schematic diagram of the grading device and bundling device of the scallion harvesting and packaging integrated machine of the present invention;

[0030] Figure 7 This is a schematic diagram of the grading device of a scallion harvesting and packaging integrated machine according to the present invention;

[0031] Figure 8 This is a schematic diagram of the binding device structure of a scallion harvesting and packaging integrated machine according to the present invention;

[0032] Figure 9 This is a schematic diagram of the supporting tape outer plate and tape inner plate structure of a scallion harvesting and packaging integrated machine according to the present invention. Figure I ;

[0033] Figure 10 This is a schematic diagram of the supporting tape outer plate and tape inner plate structure of a scallion harvesting and packaging integrated machine according to the present invention. Figure II .

[0034] In the picture:

[0035] 1. Frame; 11. Soil-cleaning brush; 12. Support frame; 13. Motor 1; 14. Storage box; 15. Primary crossbar; 16. Secondary crossbar; 17. Dispensing trough; 18. Guide anti-fall plate;

[0036] 2. Conveying device; 21. Conveying support frame; 22. Harvesting belt; 23. Pulley;

[0037] 3. Positioning blade-cutting device; 31. Straightening brush; 32. Mounting bracket; 321. Mounting plate; 33. Motor II; 331. Motor bracket; 34. Blade-cutting blade; 35. Motor III;

[0038] 4. Grading device; 41. Grading basket; 42. Grading shaft; 43. Grading brush; 44. Grading pulley; 45. Grading belt one; 46. Grading belt two; 47. Bearing housing;

[0039] 5. Bundling device; 51. Gathering seat; 52. Mounting platform; 53. Electric telescopic rod; 54. Push plate; 55. Support tape outer plate; 551. Tape placement rod; 552. Drive sleeve; 553. Limiting sleeve; 554. Motor four; 555. Notch one; 556. Triangular limiting frame; 56. Tape inner plate; 561. Tape pasting rod; 562. Notch two. Detailed Implementation

[0040] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] Please see Figure 1-10 A scallion harvesting and packaging machine includes a conveying device 2, a positioning and leaf-cutting device 3, a grading device 4, and a bundling device 5. The conveying device 2 is mounted on a frame 1, and the positioning and leaf-cutting device 3 is positioned at the starting position of the conveying device 2. The conveying device 2 is used to clamp and pull the scallions from the ground and then transport them backward and upward to the subsequent processing section of the machine, achieving automated harvesting and transportation of scallions, reducing manual operation, and improving harvesting efficiency. The positioning and leaf-cutting device 3 is used to position and correct the scallions. During transportation, the positioning and leaf-cutting device 3 cuts the leaves of the scallions. The positioning and leaf-cutting device 3 ensures that the scallions maintain the correct posture at the starting position of the conveyor. Simultaneously, during transportation, the positioning and leaf-cutting device 3 also performs leaf-cutting processing on the scallions.

[0042] A series of grading devices 4 are sequentially arranged on the frame 1. These devices 4 are used to distinguish and classify scallion whites of different diameters. Each grading device 4 has a binding device 5 at its bottom, used to gather and bind the scallion whites. The arrangement of multiple grading devices 4 achieves multi-level grading of the scallion whites. In this patent, two grading devices 4 are used, which can divide the scallion whites into three levels. Taking Zhangqiu scallions as an example: Level 1: 3-4cm, Level 2: 2-3cm, Level 3: 1-2cm.

[0043] A storage box 14 is provided on the frame 1 behind the conveyor 2. The storage box 14 is used to store the processed scallions.

[0044] The conveying device 2 includes two conveying supports 21, which are arranged opposite each other. The conveying supports 21 serve as the main supporting structure of the conveying device 2, used to install and fix the harvesting belt 22 and pulleys 23, ensuring that the scallions can be smoothly and continuously gripped and conveyed. The two conveying supports 21 are arranged opposite each other and located on both sides of the scallion, gripping the scallions through the movement of the harvesting belt 22.

[0045] Each conveyor bracket 21 has pulleys 23 at both ends, and a harvesting belt 22 is wound between the two pulleys 23. The distance between the harvesting belts 22 on the two conveyor brackets 21 is smaller than the diameter of the scallion root. The pulleys 23 are installed at both ends of the conveyor bracket 21 to support and drive the harvesting belt 22. The pulleys 23 rotate to drive the movement of the harvesting belt 22, thereby achieving the clamping and conveying of the scallion. The distance between the harvesting belts 22 on the two conveyor brackets 21 is smaller than the diameter of the scallion root to ensure that the harvesting belts 22 on both sides can tightly clamp the root of the scallion.

[0046] A support frame 12 is installed on the frame 1 at the bottom of the conveying device 2. The support frame 12 is located on both sides of the bottom of the frame 1, supporting the soil-cleaning brushes 11 mounted on it. The soil-cleaning brushes 11 are rotatably mounted on the support frame 12. The soil-cleaning brushes 11 clean the soil carried by the roots of the scallions by rotating. The friction of the brush bristles and the rotational motion effectively remove the soil from the roots of the scallions, improving the cleanliness of the scallions. A motor 13 is also installed on the outside of the support frame 12. The motor 13 is connected to the soil-cleaning brushes 11 and provides power to the soil-cleaning brushes 11. By driving the soil-cleaning brushes 11 to rotate, the function of cleaning the soil from the roots of the scallions is realized.

[0047] The positioning and cutting device 3 includes a mounting frame 32, which serves as the basic support structure for the device. Two pairs of mounting frames 32 are respectively mounted on the frames 1 on both sides of the conveying device 2. The two pairs of mounting frames 32 ensure that the positioning and cutting device 3 can span the conveying device 2 to position and cut the scallions during transport. A mounting plate 321 is provided on the mounting frame 32 for connecting the straightening brushes 31 and the motor 35. The straightening brushes 31 are located at the bottom of the mounting plate 321, with a gap between the two brushes. Through the friction and contact of the brush bristles, the scallions are straightened and positioned. The gap between the brushes allows the scallions to pass through precisely for subsequent cutting and conveying.

[0048] A motor 35 is installed at the end of the straightening brush 31 near the conveyor bracket 21, providing power to the straightening brush 31. The two straightening brushes 31 rotate from the outside in. This rotation helps to straighten and position the conveyed object towards the center. The straightening brush 31 continuously straightens the scallion between them from bottom to top, ensuring the scallion is in an upright position, which is helpful for subsequent clamping, plucking, and leaf cutting operations.

[0049] A second motor 33 is mounted on a mounting plate 321 on one side. The second motor 33 is fixedly mounted on the mounting plate 321 via a motor bracket 331. The second motor 33 provides power to the leaf-cutting blade 34, and the motor bracket 331 is used to fix and support the second motor 33. The leaf-cutting blade 34 is mounted on the second motor 33, covering the gap between it and the two straightening brushes 31. The leaf-cutting blade 34 is used to cut the leaves above the scallion during transport. The leaf-cutting blade 34 is designed to cover the gap between the two straightening brushes 31, meaning that when the object is straightened and positioned by the straightening brushes 31, its leaves will be exactly within the cutting range of the leaf-cutting blade 34, ensuring the integrity of the cut and enabling the entire leaf of a whole scallion to be cut in one go.

[0050] The frame 1 is equipped with primary crossbars 15 and secondary crossbars 16, with a feeding slot 17 positioned between the primary crossbars 15. The primary crossbars 15 on both sides support and fix the feeding slot 17, and also serve as the supporting structure for the grading device 4. The secondary crossbars 16 on both sides serve as the supporting structure for the grading device 4, forming a grading space together with the primary crossbars 15. The feeding slot 17 provides an inlet for scallions (white part), allowing the scallions to smoothly enter the grading device 4.

[0051] A grading device 4 is provided between the first-level crossbars 15 on both sides of the frame 1. The grading device 4 includes a grading basket 41 erected at the bottom inside the frame 1. The grading basket 41 is used to install a bundling device 5 to collect the scallions after grading and screening.

[0052] Each primary crossbar 15 has two bearing seats 47 at its bottom, which support and fix the grading shaft 42, allowing it to rotate smoothly. The grading shaft 42 is positioned between corresponding bearing seats 47, and it carries grading brushes 43, driving their rotation. The rotation of the grading shaft 42 drives the grading brushes 43, thus achieving the grading and screening of the scallions. The grading shaft 42 is equipped with grading brushes 43, and each bearing seat 47 on one side has a grading pulley 44. Grading belts 46 are positioned between the grading pulleys 44 on one side. In this grading device 4, the distance between the two grading brushes 43 is 2cm, used to screen scallion whites with a diameter less than 2cm. Scallion whites with a diameter greater than 2cm are pushed by the grading brushes 43 and loosened to be further screened in the next grading device 4.

[0053] A grading device 4 is installed between the secondary crossbars 16 on both sides of the frame 1. A grading belt 45 is installed between the grading devices 4 between the primary crossbars 15 and the grading devices 4 between the secondary crossbars 16. The grading belt 45 is respectively installed on the grading shafts 42 of the two grading devices 4 that are close to each other. A guide anti-fall plate 18 is installed in the middle of the grading belt 45, and the two sides of the guide anti-fall plate 18 are fixedly connected to the frame 1. The working principle of this grading device 4 is the same as that of the grading device 4 described above. However, in this grading device 4, the distance between the two grading brushes 43 is 3cm, which is used to screen scallion whites with a diameter of less than 3cm. The distance between the two grading belts 45 is less than the length of the scallion whites. When the upper grading device 4 pushes the scallion whites down, the scallion whites are placed between the two grading belts 45 and then roll down to the lower grading device 4. The guide anti-fall plate 18 located between the grading belts 45 is used to prevent the scallion whites from falling.

[0054] The bundling device 5 includes a gathering seat 51, which is fixedly installed on the grading basket 41. The gathering seat 51 serves as the initial sorting device for the bundling operation, collecting and initially sorting the graded scallions. A mounting platform 52 is provided on the grading basket 41, providing a stable mounting position for the electric telescopic rod 53. The electric telescopic rod 53 is positioned above the mounting platform 52, and a pusher plate 54 is mounted on the electric telescopic rod 53. Before bundling the scallions, one end of the scallion on the gathering seat 51 needs to be straightened. The electric telescopic rod 53 pushes the pusher plate 54 to flatten one end of the scallion, making the bundled scallions more aesthetically pleasing and neat.

[0055] A supporting outer plate 55 for the adhesive tape is located in the middle of the grading basket 41. An inner plate 56 for the adhesive tape is rotatably mounted on the supporting outer plate 55. The supporting outer plate 55 has a first notch 555, and the inner plate 56 has a second notch 562. The supporting outer plate 55 serves as a support structure for the inner plate 56, ensuring its stable rotation and allowing it to withstand a certain weight and pressure. The inner plate 56 is rotatably connected to the supporting outer plate 55, used to rotate and wind the adhesive tape around the scallion whites. During the collection of the scallion whites, the first notch 555 and the second notch 562 on the supporting outer plate 55 and the inner plate 56 coincide, allowing the scallion whites to fall accurately into the basket, thus completing the collection.

[0056] At least three drive sleeves 552 are evenly arranged on one side of the outer plate 55 of the supporting tape. Two limiting sleeves 553 are arranged on the inner side of the outer plate 55 of each drive sleeve 552. The inner plate 56 of the tape is held between the drive sleeves 552 and the limiting sleeves 553. A motor 554 is arranged on the other side of the outer plate 55 of the supporting tape, and the motor 554 is connected to the drive sleeves 552. The motor 554 drives the drive sleeves 552 to rotate. Due to the friction between the drive sleeves 552 and the inner plate 56, the inner plate 56 is rotated, completing the tape winding action. The limiting sleeves 553 located inside not only limit the position of the inner plate but also press the inner plate 56 onto the drive sleeves 552.

[0057] A triangular limiting frame 556 is also provided on the outer plate 55 of the support tape. The triangular limiting frame 556 abuts against the outer side of the inner plate 56 of the tape, restricting the lateral movement of the inner plate 56 of the tape and increasing its stability during rotation.

[0058] A tape placement rod 551 is provided on the bottom corner of the triangular limiting frame 556, and the tape placement rod 551 is used to place rolls of tape. A tape sticking rod 561 is provided on the inner tape plate 56. The tape is rotatably placed on the tape placement rod 551, and the starting section of the tape is stuck to the tape sticking rod 561 on the inner tape plate 56 with the adhesive side facing upward. Once the inner tape plate 56 starts to rotate, the tape sticking rod 561 causes the tape to wrap around the scallion.

[0059] Working Principle: When harvesting scallions, the scallion harvesting device moves along the scallion planting path. During this movement, the two straightening brushes 31 at the front end of the positioning leaf-cutting device 3 first gather the upper part of the scallion between the two straightening brushes 31. Secondly, since the two straightening brushes 31 rotate from the outside to the inside, the scallions located between the two straightening brushes 31 are continuously straightened upwards by the straightening brushes 31, thus ensuring that the scallions located between the two straightening brushes 31 always remain vertical. As the conveyor device 2 moves forward, the two harvesting belts 22 at the bottom of the conveyor device 2 will contact the roots of the scallions near the ground. After the two harvesting belts 22 clamp the roots of the scallions, the roots of the scallions are pulled out as the device moves forward and the roots with soil are cleaned by the soil-cleaning brushes 11. At the same time, as the scallions move with the conveyor device 2, the leaves at the top of the scallions are also cut by the leaf-cutting blades 34. Finally, the processed scallions are transported to the storage box 14.

[0060] The scallions (white parts) that have already been chopped and stored in storage box 14 are placed in delivery slot 17. The scallion whites will slowly roll down to grading device 4 between the first-level crossbars 15. Grading device 4 selects scallion whites with a diameter of 1-2 cm. Grading brushes 43 on grading device 4 rotate counterclockwise under the drive of grading pulleys 44. Scallion whites with a diameter less than 2 cm will fall between two grading brushes 43 and be collected and bundled by binding device 5. Scallion whites with a diameter greater than 2 cm will be pushed by grading brushes 43 to the first grading belts 45 on both sides and the guide anti-fall plate 18. Guided by the first grading belts 45 and the guide anti-fall plate 18, the scallion whites roll down to grading device 4 between the second-level crossbars 16. Similarly, grading device 4 selects scallion whites with a diameter of 2-3 cm. Scallion whites with a diameter greater than 3 cm are pushed forward by grading brushes 43 and fall into the last binding device 5, thus selecting scallion whites with a diameter greater than 3 cm.

[0061] After being sorted by the grading device 4, the scallion whites fall onto the outer plate 55 of the support tape through notches 555 and 562. As more and more scallion whites are collected, once a certain quantity is reached, the electric telescopic rod 53 pushes the pusher plate 54 to straighten one end of the scallion whites. After straightening, the three motors 554 drive the drive sleeve 552 to rotate, which in turn causes the inner plate 56 of the tape to rotate. Before the inner plate 56 of the tape starts to rotate, tape is placed on the tape placement rod 551, with the starting section of the tape adhered to the tape adhesion rod 561 on the inner plate 56 of the tape, with the adhesive side facing upwards. Once the inner plate 56 of the tape starts to rotate, the tape adhesion rod 561 causes the tape to wrap around the scallion whites. After wrapping, the entire bundle of scallion whites can be removed from the side.

[0062] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0063] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A scallion harvesting and packaging machine, characterized in that: The device includes a conveying device (2), a positioning leaf-cutting device (3), a grading device (4), and a bundling device (5). The conveying device (2) is mounted on a frame (1). The positioning leaf-cutting device (3) is set at the starting position of the conveying device (2). The positioning leaf-cutting device (3) is used to position and correct the scallions. The conveying device (2) is used to pick up the scallions and convey them backward and upward. During the conveying process, the positioning leaf-cutting device (3) will cut the leaves of the scallions. Several grading devices (4) are arranged in sequence on the frame (1). The grading devices (4) are used to distinguish scallions of different diameters and classify them. Each grading device (4) has a bundling device (5) at its bottom. The bundling device (5) is used to gather the scallions and bundle them. The frame (1) is provided with a primary crossbar (15) and a secondary crossbar (16), and a delivery slot (17) is provided between the primary crossbars (15). A grading device (4) is provided between the first-level crossbars (15) on both sides of the frame (1). The grading device (4) includes a grading basket (41) erected at the bottom of the inside of the frame (1). Two bearing seats (47) are provided at the bottom of each first-level crossbar (15). A grading shaft (42) is provided between the corresponding bearing seats (47). A grading brush (43) is provided on the grading shaft (42). A grading pulley (44) is provided on each of the bearing seats (47) on one side. A grading belt (46) is provided between the grading pulleys (44) on one side. A grading device (4) is provided between the secondary crossbars (16) on both sides of the frame (1). A grading belt (45) is provided between the grading device (4) between the primary crossbars (15) and the grading device (4) between the secondary crossbars (16). The grading belt (45) is respectively set on the grading shaft (42) where the two grading devices (4) are close to each other. A guide anti-fall plate (18) is provided in the middle of the grading belt (45). The two sides of the guide anti-fall plate (18) are fixedly connected to the frame (1). The binding device (5) includes a gathering seat (51), which is fixedly installed on the grading basket (41). The grading basket (41) is provided with an installation platform (52), and an electric telescopic rod (53) is provided above the installation platform (52). A push plate (54) is provided on the electric telescopic rod (53). A supporting tape outer plate (55) is provided in the middle of the grading basket (41). A tape inner plate (56) is rotatably provided on the supporting tape outer plate (55). A notch one (555) is provided on the supporting tape outer plate (55), and a notch two (562) is provided on the tape inner plate (56).

2. The scallion harvesting and packaging machine according to claim 1, characterized in that: A storage frame (14) is provided on the frame (1) behind the conveying device (2). The conveying device (2) includes a conveying bracket (21). There are two conveying brackets (21), which are arranged opposite each other. Each conveying bracket (21) has a pulley (23) at both ends. A harvesting belt (22) is wound between the two pulleys (23). The distance between the harvesting belts (22) on the two conveying brackets (21) is less than the diameter of the root of the scallion.

3. The scallion harvesting and packaging machine according to claim 1, characterized in that: A support frame (12) is provided on the frame (1) at the bottom of the conveying device (2). A soil cleaning brush (11) is rotatably provided on the support frame (12). A motor (13) is also provided on the outside of the support frame (12). The motor (13) is connected to the soil cleaning brush (11). The soil cleaning brush (11) is used to clean the soil carried by the roots of the scallions during the conveying process.

4. The scallion harvesting and packaging machine according to claim 1, characterized in that: The positioning leaf cutting device (3) includes a mounting frame (32), which has two pairs of frames (1) respectively mounted on both sides of the conveying device (2). The mounting frame (32) is provided with a mounting plate (321), and a straightening brush (31) is provided at the bottom of the mounting plate (321). There is a gap between the two straightening brushes (31). A motor (35) is provided at the end of the straightening brush (31) near the conveying bracket (21). The two straightening brushes (31) rotate from the outside to the inside.

5. The scallion harvesting and packaging machine according to claim 4, characterized in that: A second motor (33) is provided on one side of the mounting plate (321). The second motor (33) is fixedly mounted on the mounting plate (321) by a motor bracket (331). A leaf-cutting blade (34) is provided on the second motor (33). The leaf-cutting blade (34) covers the gap between the two straightening brushes (31).

6. The scallion harvesting and packaging machine according to claim 1, characterized in that: At least three drive sleeves (552) are evenly arranged on one side of the outer plate (55) of the supporting tape. Two limiting sleeves (553) are arranged on the inner side of the outer plate (55) of the supporting tape. The inner plate (56) of the tape is stuck between the drive sleeve (552) and the limiting sleeve (553). A motor four (554) is arranged on the other side of the outer plate (55). The motor four (554) is connected to the drive sleeve (552). A triangular limiting frame (556) is also arranged on the outer plate (55). The triangular limiting frame (556) abuts against the outer side of the inner plate (56). A tape placement rod (551) is arranged on the bottom corner of the triangular limiting frame (556). A tape sticking rod (561) is arranged on the inner plate (56).

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