High-precision large potato sorting equipment

Abstract

The invention provides high-precision large potato sorting equipment which comprises a feeding conveying belt set, a screened material conveying device, detection equipment and a removing assembly, the removing assembly is fixedly installed on the screened material conveying device, and the detection equipment is installed on the feeding conveying belt set and the screened material conveying device. The feeding conveying belt set comprises two first conveying belts arranged in a V-shaped structure, the position of one first conveying belt is lower than that of the other first conveying belt, the two first conveying belts run in the same direction at different speeds, and the feeding conveying belt set is arranged above the screening conveying device. By means of the mode, the potatoes are separated before entering the detection device, overlapping of the potatoes is avoided, and therefore the accuracy of the detection effect is ensured. In addition, external defect detection is carried out by adopting a potato free falling body mode, so that the equipment has small limitation on specifications of potatoes, and the compatibility of the equipment is greatly improved.

Description

Technical Field

[0001] The invention belongs to the technical field of agricultural product sorting, and in particular relates to a high-precision large-scale potato sorting device. Background Art

[0002] With the development of agricultural modernization, the processing of agricultural products has gradually tended to be mechanized and automated. As an important crop, potatoes are widely planted around the world. For potato producers, efficient sorting is one of the key links to improve yield and quality. In recent years, some automated potato sorting equipment has appeared on the market, which can improve sorting efficiency and quality to a certain extent. However, the accuracy of existing automated sorting equipment needs to be improved, especially when it is necessary to finely classify potatoes according to defects on the internal and external surfaces, the existing technical means are not perfect enough.

[0003] For example, the Chinese invention patent with application number 2024102469864 discloses a grading and screening device for potato processing and a screening method thereof, which uses a lifting component to transport potatoes to the screening component to complete the potato size screening, and finally performs surface flaw detection on the potatoes in the export component; wherein the lifting component includes a side bracket support, a motor, a roller, a rising lifting plate and a feeding partition, and the screening component includes three first, second and third screen cylinders with increasing apertures. The potatoes will fall from the aperture of the screen cylinder to the export component, thereby completing the size grading and flaw detection of the potatoes.

[0004] However, this structure will cause potatoes to stack when initially screening or exporting potatoes. When several potatoes are stacked, part of a single potato may be blocked, causing the detection system to be unable to obtain complete image information, thus affecting the accurate measurement of potato size, shape, and whether there are wounds. For equipment that relies on spectral technology to evaluate the internal quality of potatoes, stacking will cause interference with the spectral signal, making the collected data unable to truly reflect the characteristics of a single potato, thus causing deviations in the detection results. Summary of the invention

[0005] The present invention proposes a high-precision large-scale potato sorting device, which separates potatoes before they enter the detection device, avoiding overlap between potatoes, thereby ensuring the accuracy of the detection effect. In addition, by adopting the free fall method of potatoes for external defect detection, the device has less restrictions on potato specifications, greatly improving the compatibility of the device.

[0006] In order to solve the above technical problems, the technical solution of the present invention is:

[0007] A high-precision large-scale potato sorting equipment comprises a feeding conveyor belt group, a screening conveyor device, a detection device and a rejection component, wherein the rejection component is fixedly mounted on the screening conveyor device, and the detection device is mounted on the feeding conveyor belt group and the screening conveyor device. The feeding conveyor belt group comprises two first conveyor belts arranged in a V-shaped structure, wherein one of the first conveyor belts is located lower than the other first conveyor belt, and the two first conveyor belts run in the same direction at different speeds. The feeding conveyor belt group is arranged above the screening conveyor device.

[0008] In the feeding conveyor belt group, the two first conveyor belts move in the same direction but at different speeds. The faster conveyor belt can move potatoes faster, while the slower conveyor belt provides a relatively static reference point. At the same time, because the two first conveyor belts are arranged in a V-shaped structure, the potatoes will be concentrated at the center line of the V-shaped structure, reducing the possibility of potatoes stacking in the horizontal direction. With the two first conveyor belts arranged in this way, even if potatoes are stacked in the horizontal direction, the potatoes in contact with the faster conveyor belt will move faster than the potatoes in contact with the slower conveyor belt. Due to the different speeds of the two conveyor belts, there is a displacement difference between the originally overlapping potatoes. As the potatoes move forward, the potatoes in contact with the faster conveyor belt will gradually advance, while the potatoes in contact with the slower conveyor belt will lag behind relatively. This speed difference causes relative displacement between the potatoes, causing the overlapping potatoes to be gradually pulled apart. Due to this displacement difference, the potatoes stacked on top will slide down, thereby achieving the separation of the stacked potatoes. In this way, each potato can be inspected individually, which improves the accuracy of the inspection. With the removal component, it can further achieve refined screening. In addition, the conveyor belt set can also reduce the probability of collision between potatoes, reduce product damage caused by collision, and ensure the quality of potatoes.

[0009] It is worth noting that, since one of the first conveyor belts is located lower than the other first conveyor belt, such a height setting utilizes gravity to make the potatoes naturally slide along the lower first conveyor belt, thereby making it easier to control the movement trajectory of the potatoes, so that the potatoes can be stabilized more quickly at the center line position of the V-shaped structure, and the risk of disorderly rolling and deviation of the potatoes is reduced; although there are also conveyor belts with V-shaped structures on the market, there is no height setting relationship between them, so when the potatoes slide down the inclined surface of the conveyor belt, it is easy for the potatoes to roll irregularly between the two conveyor belts, resulting in collisions between the potatoes; and the structure of the present invention makes the potatoes move toward the lower conveyor belt, effectively reducing the relative movement between the potatoes, and the frequency and strength of collisions between the potatoes will also be reduced accordingly, reducing the physical damage of the potatoes during the transmission process.

[0010] Preferably, the two first conveyor belts are arranged at intervals. In this way, a physical space is provided between the two first conveyor belts for the dispersion of potatoes, and this space can serve as a buffer zone to reduce direct contact and squeezing when multiple potatoes enter the feeding conveyor belt group together, thereby reducing the possibility of blockage. Moreover, the soil, gravel and residual plant parts in the potatoes can be discharged from the gap between the two first conveyor belts, so as to prevent impurities from clogging the transmission channel and prevent impurities from entering the subsequent process and causing damage to the detection equipment and potatoes.

[0011] Preferably, a dispersing device is further included, the dispersing device includes a lifting assembly and a top plate, the lifting assembly is arranged below the first conveyor belt, the top plate is located between the two first conveyor belts, and the working end of the lifting assembly is fixedly connected to the top plate. The dispersing device can further prevent the potatoes from being stacked and blocked; the top plate can effectively disperse the potatoes between the two first conveyor belts by moving up and down through the lifting assembly.

[0012] Wherein, the top plate includes a first inclined portion and a second inclined portion, the first inclined portion and the second inclined portion are inclined in directions toward the same first conveyor belt, the second inclined portion is fixedly arranged at the upper end of the first inclined portion, a plurality of protrusions are arranged on the second inclined portion, and a baffle is arranged at one end of the first inclined portion and the second inclined portion facing the forward direction of the first conveyor belt. Since the potatoes after being pushed may be subjected to a force in an unpredictable direction, the first inclined portion and the second inclined portion are designed to guide the potatoes after being pushed and dispersed to move in an orderly manner toward the same first conveyor belt, so as to avoid the dispersed potatoes from stacking again on two first conveyor belts with different speeds due to the pushing effect. The design of the protrusions helps to disperse the potatoes and reduce overlap and blockage. The baffle can prevent the pushed potatoes from rolling or sliding forward, thereby preventing them from stacking again with the potatoes that have been dispersed in front.

[0013] Preferably, the detection device includes a spectrometer and a visual detection component, wherein the spectrometer is fixedly mounted at the end of the feeding conveyor belt group, and the visual detection component is fixedly mounted at the head end of the screening conveyor device and is located below the end of the feeding conveyor belt group. The spectrometer is used to detect internal lesions of potatoes, and the visual detection component is used to detect external defects of potatoes. Through the combined use of the spectrometer and the visual detection component, potatoes can be finely sorted. It is worth mentioning that since the feeding conveyor belt group is arranged above the screening conveyor device, and the visual detection component is located between the two, this provides a certain space for the free fall of potatoes, and the visual detection component can also detect whether there are defects in the appearance of potatoes in a more comprehensive manner. Moreover, this spatial layout has fewer restrictions on the specifications of potatoes, so that the equipment can be suitable for detecting potatoes of different sizes and shapes.

[0014] Preferably, a buffer is further included, one end of which is arranged between the visual detection assembly and the screening material conveying device, and the other end of which is provided with a downwardly inclined inclined body, the lower end of which is located above the screening material conveying device. The buffer can absorb the impact force of the potatoes during free fall, reduce the damage to the potatoes caused by the impact during the fall, protect the integrity of the potatoes, and can also guide and ensure that the potatoes can flow into the screening material conveying device stably.

[0015] Preferably, the rejection component includes a high-pressure gas nozzle, a high-pressure gas source and a defective product collection frame, the high-pressure gas nozzle is connected to the high-pressure gas source, the high-pressure gas nozzle is arranged on one side of the screening material conveying device, and the defective product collection frame is arranged on the other side of the screening material conveying device, and the high-pressure gas nozzle and the defective product collection frame are both provided in multiple numbers. The detection equipment will feed back the detection results to the control system, and the control system will provide a signal to the high-pressure gas source according to the detection results, and the high-pressure gas source will supply air to the high-pressure gas nozzle. The high-pressure gas nozzle is used to blow the defective potatoes on the screening material conveying device into the defective product collection frame to ensure that qualified potatoes enter the subsequent process. By setting up multiple high-pressure gas nozzles, defective products can be rejected more efficiently and potatoes of different defective grades can be distinguished.

[0016] Preferably, the screening material conveying device comprises a screening material conveyor belt, side baffles and push plates, a plurality of push plates are provided and are arranged at intervals on the screening material conveyor belt, the side baffles are fixedly mounted on both sides of the screening material conveyor belt, and the side baffles are provided with through holes, and the through holes allow the high-pressure gas nozzle and the defective product collection frame to be mutually conductive. In this way, the gas blown out of the high-pressure gas nozzle can smoothly blow the potatoes into the defective product collection frame, the side baffles can prevent the potatoes from rolling to other places, and the push plates can not only push the potatoes forward smoothly, but also play a role in separating the potatoes to prevent them from piling up.

[0017] Preferably, a defective product conveyor belt is provided below the defective product collection frame, and a plurality of defective product conveyor belts are provided. In this way, potatoes of different defective grades rejected from different positions can be efficiently collected, ensuring that the defective products are collected and transported away in time.

[0018] Preferably, the conveying speed of the first conveyor belt is slower than that of the screening conveyor belt, so that the potatoes after inspection can be quickly transported away, and potatoes falling from the first conveyor belt are prevented from damaging the inspected potatoes, and the potatoes are prevented from overlapping and clogging on the screening conveyor belt.

[0019] In summary, such a high-precision large-scale potato sorting equipment can separate potatoes before they enter the detection device, avoiding overlap between potatoes, thereby ensuring the accuracy of the detection effect. In addition, by using the free fall method of potatoes for external defect detection, the equipment has fewer restrictions on potato specifications, greatly improving the compatibility of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0021] Figure 1 This is a schematic structural diagram of the high-precision large-scale potato sorting equipment of the present invention;

[0022] Figure 2 This is a schematic structural diagram of the first conveyor belt in the high-precision large-scale potato sorting equipment of the present invention;

[0023] Figure 3 It is a schematic structural diagram of the dispersion device and the first conveyor belt in the high-precision large-scale potato sorting equipment of the present invention;

[0024] Figure 4 This is a schematic diagram of the structure of the dispersing device in the high-precision large-scale potato sorting equipment of the present invention;

[0025] Figure 5 It is a schematic structural diagram of the screening material conveying device and the rejecting component in the high-precision large-scale potato sorting equipment of the present invention;

[0026] Figure 6 Schematic diagram of the structure of the buffer part in Example 1 of the present invention;

[0027] Figure 7 Schematic diagram of the structure of the buffer part in Example 2 of the present invention.

[0028] In the figure,

[0029] 1-feeding conveyor belt group; 11-first conveyor belt;

[0030] 2-screening material conveying device; 21-screening material conveying belt; 22-side baffle; 221-through hole; 23-push plate;

[0031] 3-Detection equipment; 31-Spectrometer; 32-Visual detection component;

[0032] 4-rejection component; 41-high pressure air nozzle; 42-defective product collection frame; 43-defective product conveyor belt;

[0033] 5-dispersing device; 51-lifting assembly; 52-top plate; 521-first inclined portion; 522-second inclined portion; 523-baffle; 53-protrusion;

[0034] 6-buffer; 61-rubber pad; 62-elastic member; 621-soft pad. DETAILED DESCRIPTION

[0035] The specific embodiments of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0036] Example 1

[0037] Reference Figure 1 and Figure 2 As shown, a high-precision large-scale potato sorting equipment includes a feeding conveyor belt group 1, a screening conveyor device 2, a detection device 3 and a rejection component 4, wherein the rejection component 4 is fixedly mounted on the screening conveyor device 2, and the detection device 3 is mounted on the feeding conveyor belt group 1 and the screening conveyor device 2. The feeding conveyor belt group 1 includes two first conveyor belts 11 arranged in a V-shaped structure, wherein one of the first conveyor belts 11 is located lower than the other first conveyor belt 11, and the two first conveyor belts 11 run in the same direction at different speeds, and the feeding conveyor belt group 1 is arranged above the screening conveyor device 2.

[0038] In the feeding conveyor belt group 1, the two first conveyor belts 11 move in the same direction but at different speeds. The faster conveyor belt can move potatoes faster, while the slower conveyor belt provides a relatively static reference point. At the same time, because the two first conveyor belts 11 are arranged in a V-shaped structure, the potatoes will be concentrated at the center line of the V-shaped structure, reducing the possibility of potatoes stacking in the horizontal direction. With the two first conveyor belts 11 arranged in this way, even if potatoes are stacked in the horizontal direction, the potatoes in contact with the faster conveyor belt will move faster than the potatoes in contact with the slower conveyor belt. Due to the different speeds of the two conveyor belts, a displacement difference is generated between the originally overlapping potatoes. As the potatoes move forward, the potatoes in contact with the faster conveyor belt will gradually advance, while the potatoes in contact with the slower conveyor belt will lag behind relatively. This speed difference causes relative displacement between the potatoes, so that the overlapping potatoes are gradually pulled apart. Due to this displacement difference, the potatoes stacked on top will slide down, thereby achieving the separation of the stacked potatoes. In this way, it can be ensured that each potato can be tested separately in the future, which improves the accuracy of the test. In combination with the rejection component 4, refined screening can be further achieved. In addition, the conveyor belt set arranged in this way can also reduce the probability of collision between potatoes, reduce product damage caused by collision, and ensure the quality of potatoes.

[0039] It is worth noting that, since one of the first conveyor belts 11 is located lower than the other first conveyor belt 11, such a height setting utilizes gravity to make the potatoes slide naturally along the lower first conveyor belt 11, thereby making it easier to control the movement trajectory of the potatoes, so that the potatoes can be stabilized more quickly at the center line of the V-shaped structure, reducing the risk of disorderly rolling and deviation of the potatoes; although there are also conveyor belts with V-shaped structures on the market, there is no height setting relationship between them, so when the potatoes slide down the inclined surface of the conveyor belt, it is easy for the potatoes to roll irregularly between the two conveyor belts, resulting in collisions between the potatoes; and the structure of the present invention makes the potatoes move toward the lower conveyor belt, effectively reducing the relative movement between the potatoes, and the frequency and strength of collisions between the potatoes will also be reduced accordingly, reducing the physical damage of the potatoes during the transmission process.

[0040] Furthermore, the two first conveyor belts 11 are arranged at intervals. In this way, a physical space is provided between the two first conveyor belts 11 for the dispersion of potatoes, and this space can serve as a buffer zone to reduce the direct contact and squeezing caused when multiple potatoes enter the feeding conveyor belt group 1 together, thereby reducing the possibility of blockage. Moreover, the soil, gravel and residual plant parts in the potatoes can be discharged from the gap between the two first conveyor belts 11, so as to prevent impurities from clogging the transmission channel and prevent impurities from entering the subsequent process and causing damage to the detection equipment 3 and potatoes.

[0041] Reference Figure 3 and Figure 4 As shown, further, a dispersing device 5 is included, the dispersing device 5 includes a lifting assembly 51 and a top plate 52, the lifting assembly 51 is arranged below the first conveyor belt 11, the top plate 52 is located between the two first conveyor belts 11, and the working end of the lifting assembly 51 is fixedly connected to the top plate 52. The dispersing device 5 can further prevent the potatoes from being stacked and blocked; the top plate 52 moves up and down through the lifting assembly 51, and can effectively disperse the potatoes between the two first conveyor belts 11.

[0042] It should be noted that the lifting assembly 51 is a common product on the market, such as a pneumatic cylinder, an oil cylinder, a screw motor, etc. The lifting assembly 51 used in this embodiment has nothing special, so it will not be explained and illustrated in detail in this application.

[0043] Reference Figure 4 As shown, the top plate 52 includes a first inclined portion 521 and a second inclined portion 522, the first inclined portion 521 and the second inclined portion 522 are inclined in the same direction toward the first conveyor belt 11, the second inclined portion 522 is fixedly arranged at the upper end of the first inclined portion 521, a plurality of protrusions 53 are arranged on the second inclined portion 522, and a baffle 523 is arranged at one end of the first inclined portion 521 and the second inclined portion 522 facing the forward direction of the first conveyor belt 11. Since the potatoes pushed may be subjected to a force in an unpredictable direction, the first inclined portion 521 and the second inclined portion 522 are designed to guide the potatoes pushed and dispersed to move in an orderly manner toward the same first conveyor belt 11, so as to avoid the potatoes dispersed due to the pushing action from stacking again on two first conveyor belts 11 with different speeds. The design of the protrusion 53 helps to disperse the potatoes and reduce overlap and blockage. The baffle 523 can prevent the pushed potatoes from rolling or sliding forward, thereby preventing them from stacking again with the potatoes that have been dispersed in front.

[0044] Reference Figure 1 As shown, further, the detection device 3 includes a spectrometer 31 and a visual detection component 32. The spectrometer 31 is fixedly installed at the end of the feeding conveyor belt group 1, and the visual detection component 32 is fixedly installed at the head end of the screening conveyor device 2 and is located below the end of the feeding conveyor belt group 1. The spectrometer 31 is used to detect internal lesions of potatoes, and the visual detection component 32 is used to detect external defects of potatoes. Through the combined use of the spectrometer 31 and the visual detection component 32, potatoes can be finely sorted. The spectrometer 31 and the visual detection component 32 are common devices on the market, so they are not described in detail in this application.

[0045] It is worth mentioning that since the feeding conveyor belt group 1 is arranged above the screening conveyor device 2, and the visual inspection component 32 is located between the two, this provides a certain space for the free fall of potatoes. The visual inspection component 32 can also detect whether there are defects in the appearance of potatoes in a more comprehensive manner. Moreover, this spatial layout has fewer restrictions on the specifications of potatoes, so that the equipment can be used to detect potatoes of different sizes and shapes.

[0046] Reference Figure 6 As shown, further, a buffer portion 6 is included, one end of which is arranged between the visual detection component 32 and the screening material conveying device 2, and the other end of the buffer portion 6 is provided with a downwardly inclined inclined body, and the lower end of the inclined body is located above the screening material conveying device 2. The buffer portion 6 can absorb the impact force of the potatoes during the free fall process, reduce the damage to the potatoes caused by the impact during the fall process, protect the integrity of the potatoes, and can also guide and ensure that the potatoes can flow into the screening material conveying device 2 stably. The buffer portion 6 can adopt a rubber pad 61, and the rubber pad 61 is provided with a downwardly inclined slope, and the potatoes can roll into the screening material conveying device 2 from the slope. This method has a simple structure and low cost.

[0047] Reference Figure 5 As shown, further, the rejection component 4 includes a high-pressure gas nozzle 41, a high-pressure gas source and a defective collection frame 42, the high-pressure gas nozzle 41 is connected to the high-pressure gas source, the high-pressure gas nozzle 41 is arranged on one side of the screening material conveying device 2, and the defective collection frame 42 is arranged on the other side of the screening material conveying device 2, and the high-pressure gas nozzle 41 and the defective collection frame 42 are both provided in multiple numbers. The detection device 3 will feed back the detection result to the control system, and the control system will provide a signal to the high-pressure gas source according to the detection result, and the high-pressure gas source will supply air to the high-pressure gas nozzle 41. The high-pressure gas nozzle 41 is used to blow the defective potatoes on the screening material conveying device 2 into the defective collection frame 42 to ensure that qualified potatoes enter the subsequent process. By setting multiple high-pressure gas nozzles 41, defective products can be rejected more efficiently and potatoes of different defective grades can be distinguished.

[0048] Furthermore, the screening material conveying device 2 comprises a screening material conveying belt 21, a side baffle 22 and a push plate 23, wherein a plurality of push plates 23 are provided and are arranged at intervals on the screening material conveying belt 21, the side baffle 22 is fixedly mounted on both sides of the screening material conveying belt 21, and a through hole 221 is provided on the side baffle 22, and the through hole 221 enables the high-pressure gas nozzle 41 and the defective product collection frame 42 to be mutually conductive. In this way, the gas blown out of the high-pressure gas nozzle 41 can smoothly blow the potatoes into the defective product collection frame 42, the side baffle 22 can prevent the potatoes from rolling to other places, and the push plate 23 can not only push the potatoes forward smoothly, but also play a role in separating the potatoes to prevent them from piling up.

[0049] Furthermore, a defective conveyor belt 43 is provided below the defective collection frame 42, and a plurality of defective conveyor belts 43 are provided. The bottom of the defective collection frame 42 can be directly provided with openings, so that potatoes can directly fall from the defective collection frame 42 onto the defective conveyor belt 43; in this way, potatoes of different defective grades removed from different positions can be efficiently collected, ensuring that the defectives are collected and transported away in a timely manner.

[0050] Furthermore, the conveying speed of the first conveyor belt 11 is slower than that of the screening conveyor belt 21. In this way, the potatoes after inspection can be quickly transported away, and potatoes falling from the first conveyor belt 11 are prevented from damaging the inspected potatoes, and the potatoes are prevented from overlapping and clogging on the screening conveyor belt 21.

[0051] Example 2

[0052] Reference Figure 7 As shown, the difference between this embodiment and embodiment 1 is that the buffer part 6 includes an elastic member 62 and a soft pad 621, the lower end of the elastic member 62 is fixedly mounted on the frame of the screening material conveying device 2, one end of the soft pad 621 is fixedly mounted on the upper end of the elastic member 62, the other end of the soft pad 621 is connected to the bottom of the visual detection component 32, and a slope inclined downward is provided on the soft pad 621. After the potato falls on the soft pad 621, the elastic member 62 and the soft pad 621 play a buffering role together, and the potato will also roll down the slope on the soft pad 621 into the screening material conveying device 2. The elastic member 62 can be a spring. Compared with the solution in embodiment 1, the solution in embodiment 2 can make the buffer part 6 more capable of absorbing impact force, and can also replace springs of different hardness according to the weight and falling speed of the potato, so that the application range of the device is wider.

[0053] In summary, such a high-precision large-scale potato sorting equipment can separate potatoes before they enter the detection device, avoiding overlap between potatoes, thereby ensuring the accuracy of the detection effect. In addition, by using the free fall method of potatoes for external defect detection, the equipment has fewer restrictions on potato specifications, greatly improving the compatibility of the equipment.

[0054] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments are made without departing from the principles and spirit of the present invention, and still fall within the scope of protection of the present invention.

Claims

1. A high-precision large-scale potato sorting device, comprising a feeding conveyor belt group (1), a screening material conveying device (2), a detection device (3) and a rejection component (4), wherein the rejection component (4) is fixedly mounted on the screening material conveying device (2), and the detection device (3) is mounted on the feeding conveyor belt group (1) and the screening material conveying device (2). Features: The loading conveyor belt group (1) comprises two first conveyor belts (11) arranged in a V-shaped structure, one of the first conveyor belts (11) is located lower than the other first conveyor belt (11), and the two first conveyor belts (11) run in the same direction at different speeds. The loading conveyor belt group (1) is arranged above the screening material conveying device (2).

2. The high-precision large-scale potato sorting equipment according to claim 1, Features: The two first conveyor belts (11) are arranged at intervals.

3. The high-precision large-scale potato sorting equipment according to claim 2, Features: The invention also comprises a dispersing device (5), wherein the dispersing device (5) comprises a lifting assembly (51) and a top plate (52), wherein the lifting assembly (51) is arranged below the first conveyor belt (11), and the top plate (52) is located between the two first conveyor belts (11), and the working end of the lifting assembly (51) is fixedly connected to the top plate (52).

4. The high-precision large-scale potato sorting equipment according to claim 3, Features: The top plate (52) includes a first inclined portion (521) and a second inclined portion (522), the inclination directions of the first inclined portion (521) and the second inclined portion (522) are both toward the same first conveyor belt (11), the second inclined portion (522) is fixedly arranged at the upper end of the first inclined portion (521), a plurality of protrusions (53) are arranged on the second inclined portion (522), and a baffle (523) is arranged at one end of the first inclined portion (521) and the second inclined portion (522) facing the forward direction of the first conveyor belt (11).

5. The high-precision large-scale potato sorting equipment according to claim 2, Features: The detection device (3) comprises a spectrometer (31) and a visual detection component (32), wherein the spectrometer (31) is fixedly mounted at the end of the feeding conveyor belt group (1), and the visual detection component (32) is fixedly mounted at the head end of the screening material conveying device (2) and is located below the end of the feeding conveyor belt group (1).

6. The high-precision large-scale potato sorting equipment according to claim 4, Features: It also includes a buffer portion (6), one end of which is arranged between the visual detection component (32) and the screening material conveying device (2), and the other end of the buffer portion (6) is provided with a downwardly inclined inclined body, the lower end of the inclined body is located above the screening material conveying device (2).

7. The high-precision large-scale potato sorting equipment according to claim 1, Features: The rejection component (4) comprises a high-pressure gas nozzle (41), a high-pressure gas source and a defective product collection frame (42); the high-pressure gas nozzle (41) is connected to the high-pressure gas source; the high-pressure gas nozzle (41) is arranged on one side of the screening material conveying device (2); the defective product collection frame (42) is arranged on the other side of the screening material conveying device (2); and a plurality of the high-pressure gas nozzle (41) and the defective product collection frame (42) are provided.

8. The high-precision large-scale potato sorting equipment according to claim 6, Features: The screening material conveying device (2) comprises a screening material conveying belt (21), a side baffle (22) and a push plate (23); a plurality of the push plates (23) are arranged at intervals on the screening material conveying belt (21); the side baffles (22) are fixedly mounted on both sides of the screening material conveying belt (21); a through hole (221) is arranged on the side baffles (22); and the through hole (221) enables the high-pressure gas nozzle (41) and the defective product collection frame (42) to be in conduction with each other.

9. The high-precision large-scale potato sorting equipment according to claim 7, Features: A defective product conveying belt (43) is arranged below the defective product collecting frame (42), and a plurality of defective product conveying belts (43) are arranged.

10. The high-precision large-scale potato sorting equipment according to claim 1, Features: The conveying speed of the first conveyor belt (11) is slower than the conveying speed of the screening material conveyor belt (21).

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