A screening device for pepper grade classification

Abstract

This utility model belongs to the field of chili pepper grading and screening technology, and discloses a chili pepper grading and screening device, including a first side plate and a second side plate. The second side plate is connected to a second motor, and the output end of the second motor is connected to a first drive wheel. The other end of the first drive wheel is rotatably connected to the first side plate. The first side plate and the second side plate are rotatably connected to a first driven wheel. The first drive wheel and the first driven wheel are connected to a first conveyor belt. The first side plate and the second side plate are connected to a feed baffle, a first baffle, and several second baffles. The second side plate is connected to a first motor, and the output end of the first motor is connected to a second grading structure. The second grading structure is connected to a third drive wheel and a fourth drive wheel. The first grading structure includes a connecting ring, and the second side plate is rotatably connected to a connecting plate. This solution realizes automated grading and screening of chili peppers according to their diameter, and at the same time improves screening efficiency and chili pepper integrity through auxiliary structures such as flattening, buffering, and material spreading.

Description

Technical Field

[0001] This utility model relates to the field of chili pepper grading and screening technology, and in particular to a screening device for chili pepper grade classification. Background Technology

[0002] Chili peppers are annual or perennial herbaceous plants belonging to the genus Capsicum in the Solanaceae family. Due to the unique spiciness of their fruits and their numerous uses, they have become a widely cultivated and consumed economic crop globally. Chili peppers are not only a flavorful addition to the dining table but also occupy an important position in agriculture, the food industry, and culture. Their diversity and utilitarianism make them one of the most influential crops in the world.

[0003] In the chili processing industry, chili grading is a crucial factor in determining product quality and added value. Traditional chili sorting methods rely heavily on manual sorting or simple mechanical sieving, which suffers from low efficiency, unstable grading standards, high labor costs, and susceptibility to subjective factors. With the increasing demand for large-scale processing, there is an urgent need for a highly automated, precise grading system that can adapt to chilies of different sizes.

[0004] A chili pepper grading and screening device, disclosed in publication number CN220738408U, includes a frame and a receiving box. The frame has a screen mounted on its left side via a connecting mechanism, a vibrating motor located at the center of the left side of the screen, a top plate on its upper surface, and a hopper corresponding to the screen at the opening on the left side of the top plate. The receiving box has dovetail strips symmetrically arranged on its front and rear sides, which are slidably connected to dovetail grooves corresponding to those on the inner wall of the frame. A support is located on the bottom of the receiving box, and casters are evenly arranged at the four corners of the support. A control switch group is located on the front side of the frame, with its input electrically connected to an external power source. This chili pepper grading and screening device can first remove chili seeds and granular impurities from the chilies, and then perform a second screening based on the weight of the chilies, resulting in more uniform and thorough screening and better screening effect.

[0005] However, through exploration, the inventors have discovered that this technical solution still has at least the following defects:

[0006] The sorting principle of this device, which relies on the correlation between conveyor belt friction and chili pepper mass, contains a physical contradiction. The dynamic friction between the chili pepper and the conveyor belt depends only on the coefficient of friction and the normal force (i.e., mass), but the acceleration is independent of mass. The final initial velocity is determined solely by the coefficient of friction and the length of the conveyor belt. Therefore, chili peppers of different masses have the same initial velocity when they leave the conveyor belt, making it impossible to effectively differentiate between heavier and lighter peppers in terms of throwing distance. Utility Model Content

[0007] The present invention aims to provide a screening device for classifying the grade of chili peppers, so as to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A chili pepper grading and sorting device includes a first side plate and a second side plate. The second side plate is connected to a second motor. The output end of the second motor is connected to a first drive wheel. The other end of the first drive wheel is rotatably connected to the first side plate. The first side plate and the second side plate are rotatably connected to a first driven wheel. The first drive wheel and the first driven wheel are connected to a first conveyor belt. The first side plate and the second side plate are connected to a feed baffle, a first baffle, and several second baffles. The first side plate and the second side plate are rotatably connected to a first grading structure, a second grading structure, and a third grading structure with identical structures. The second side plate is connected to a first motor. The output end of the first motor is connected to the second grading structure. The second grading structure is connected to a third drive wheel and a fourth drive wheel.

[0010] The first grading structure includes a connecting ring, which is rotatably connected to the side wall of the first side plate. The second side plate is rotatably connected to a connecting plate. The connecting plate and the connecting ring are connected to a material distribution pipe. The two connecting plates located on both sides of the second grading structure are respectively connected to a third driven wheel and a fourth driven wheel. The third driven wheel and the third driving wheel are connected to a third conveyor belt. The fourth driving wheel and the fourth driven wheel are connected to a fourth conveyor belt.

[0011] Preferably, the output end of the second motor is connected to a second drive wheel, and a rotating shaft is rotatably connected to the inner wall of the second side plate. The rotating shaft passes through the side wall of the second side plate and is rotatably connected to the second side plate. The rotating shaft is connected to a second driven wheel, and the second driven wheel and the second drive wheel are jointly connected to a second conveyor belt. The rotating shaft is connected to a plurality of material distribution plates.

[0012] Preferably, the first, second, and third graded structures are all inclined downwards towards the first side plate. The distance between two adjacent distribution pipes of the first graded structure is L1, the distance between two adjacent distribution pipes of the second graded structure is L2, and the distance between two adjacent distribution pipes of the third graded structure is L3. <L2<L3。

[0013] Preferably, the first side plate has a plurality of discharge holes, and the first side plate and the second side plate are connected together to a plurality of collecting plates, which are inclined.

[0014] Preferably, the sidewalls of the first side plate and the second side plate are connected to brushes.

[0015] Preferably, rubber paddles are connected to both sides of the second baffle, and the first and second baffles are inclined.

[0016] Beneficial effects of this technical solution compared with the prior art:

[0017] (1) By setting the material distribution pipes with different spacings (L1 < L2 < L3) in the first grading structure, the second grading structure and the third grading structure, and all three grading structures are inclined downward toward the first side plate, when peppers with different diameters roll along the material distribution pipes under the action of gravity, they can be size-graded according to whether they can pass through the corresponding spaced material distribution pipes, so as to classify peppers of different diameters by grade, meeting the requirements for size indicators in pepper grade classification.

[0018] (2) The output end of the second motor is connected to the second driving wheel, and the second driving wheel is connected to the second driven wheel through the second conveyor belt, further driving the rotating shaft and the material distribution plate connected to the rotating shaft to rotate. Using conveyor belt transmission, the material distribution plate can apply a lateral thrust to the stacked peppers without additional power, realizing the flattening process of the peppers at the feeding end, preventing the peppers from piling up during feeding, enabling the subsequent grading structure to receive evenly distributed materials, and improving the screening efficiency.

[0019] (3) The spacings between adjacent material distribution pipes in the first grading structure, the second grading structure and the third grading structure are different (L1 < L2 < L3), forming a size screening gradient from small to large. When the peppers move in the inclined and rotating material distribution pipes, the peppers with smaller diameters first pass through the material distribution pipes with smaller spacings to complete the screening, and the peppers with larger diameters are classified through the material distribution pipes with larger spacings. The grading and screening of peppers with different sizes are effectively achieved through the material distribution pipes with different spacings.

[0020] (4) A number of discharge holes are provided on the first side plate, and a number of inclined collecting plates are jointly connected between the first side plate and the second side plate. The screened peppers can automatically slide down along the inclined collecting plates and fall into the corresponding collecting areas through the discharge holes, realizing the automatic collection of peppers after grading by the action of gravity, without manual intervention, improving the automation degree and efficiency of material collection.

[0021] (5) Brushes are connected to the side walls of the first side plate and the second side plate. During the movement of the peppers along the conveyor belt or the rotation of the material distribution pipes, the brushes form a flexible buffer layer, which can reduce the direct contact and friction between the peppers and the side plates, avoiding damage to the peppers due to collision or friction with the side plates during transportation, and playing a role in protecting the peppers.

[0022] (6) Rubber deflectors are connected to both sides of the second baffle, and the first baffle and the second baffle are inclined. When the larger peppers screened out in the first grading structure or the second grading structure fail to pass through the spacing of the previous-stage material distribution pipe, the rubber deflectors can generate a flexible thrust through elastic swing, assisting the larger peppers to smoothly enter the next grading structure. At the same time, the flexible characteristics of the rubber deflectors can prevent damage to the peppers, ensuring the integrity of the peppers during the grading process and the smoothness of screening. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0024] Figure 2 This is a three-dimensional structural diagram of the present invention;

[0025] Figure 3 This is a three-dimensional structural diagram of the present invention;

[0026] Reference numerals: 1. First side plate; 2. Second side plate; 3. Feed baffle; 4. Rotating shaft; 5. Distributor plate; 6. First conveyor belt; 7. First grading structure; 8. Second grading structure; 9. Third grading structure; 10. Connecting plate; 11. Connecting ring; 12. Collecting plate; 13. Discharge hole; 14. Distributor pipe; 15. First baffle; 16. Second baffle; 17. Rubber paddle; 18. First driving wheel; 19. First driven wheel; 20. First motor; 21. Second motor; 22. Second driving wheel; 23. Second driven wheel; 24. Second conveyor belt; 25. Third driven wheel; 26. Fourth driven wheel; 27. Third driving wheel; 28. Fourth driving wheel; 29. ​​Third conveyor belt; 30. Fourth conveyor belt; 31. Brush; Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments:

[0028] like Figures 1 to 3 The chili pepper grading sorting device shown includes a first side plate 1 and a second side plate 2, as follows: Figure 3 As shown, a second motor 21 is connected to the outer side of the second side plate 2, as follows: Figure 1 As shown, the output end of the second motor 21 is connected to a first driving wheel 18. The other end of the first driving wheel 18 is rotatably connected to the inner side wall of the first side plate 1. The first side plate 1 and the second side plate 2 are rotatably connected to a first driven wheel 19 close to each other on one side wall. The first driving wheel 18 and the first driven wheel 19 are connected to a first conveyor belt 6. The second motor 21 drives the first driving wheel 18 to rotate, which drives the first driven wheel 19 to rotate synchronously through the first conveyor belt 6, so that the first conveyor belt 6 forms a continuous transmission path for conveying the peppers to be graded.

[0029] The first side plate 1 and the second side plate 2 are close to each other on one side wall and are connected to a feed baffle 3, a first baffle 15, and several second baffles 16. The first side plate 1 and the second side plate 2 are rotatably connected to a first grading structure 7, a second grading structure 8, and a third grading structure 9 with identical structures. Figure 3As shown, a first motor 20 is connected to the outer sidewall of the second side plate 2. The output end of the first motor 20 is connected to the second grading structure 8. The second grading structure 8 is connected to a third drive wheel 27 and a fourth drive wheel 28. The first motor 20 drives the second grading structure 8 to rotate, and through the third drive wheel 27 and the fourth drive wheel 28, it drives the third conveyor belt 29 and the fourth conveyor belt 30 to rotate, providing power to the grading structure and causing the material distribution pipe 14 to perform a rotating screening action.

[0030] like Figure 2 and Figure 3 As shown, the first grading structure 7 includes a connecting ring 11, which is rotatably connected to the side wall of the first side plate 1. A connecting plate 10 is rotatably connected to the second side plate 2. The connecting plate 10 and the connecting ring 11 are connected to the distribution pipe 14. Two connecting plates 10 located on both sides of the second grading structure 8 are respectively connected to a third driven wheel 25 and a fourth driven wheel 26. The third driven wheel 25 and the third driving wheel 27 are connected to a third conveyor belt 29. The fourth driving wheel 28 and the fourth driven wheel 26 are connected to a fourth conveyor belt 30. When the grading structure rotates, the distribution pipe 14 rotates synchronously with the connecting ring 11 and the connecting plate 10. The peppers roll downwards on the inclined surface of the distribution pipe 14 under the action of gravity. Peppers with a diameter smaller than the distance between adjacent distribution pipes 14 fall through the gap, achieving size grading. The third conveyor belt 29 and the fourth conveyor belt 30 are used to transmit grading power, enabling each level of the structure to operate in coordination.

[0031] like Figure 3 As shown, the output end of the second motor 21 is connected to the second drive wheel 22. A rotating shaft 4 is rotatably connected to the inner wall of the second side plate 2. The rotating shaft 4 passes through the second side plate 2 and is rotatably connected to it. The rotating shaft 4 is connected to the second driven wheel 23. The second driven wheel 23 and the second drive wheel 22 are connected to the second conveyor belt 24. The rotating shaft 4 is connected to several evenly distributed distribution plates 5. The second motor 21 simultaneously drives the second drive wheel 22 to rotate, which in turn drives the second driven wheel 23 and the rotating shaft 4 to rotate through the second conveyor belt 24. This causes the distribution plates 5 to rotate with the rotating shaft 4, applying a lateral thrust to the chili peppers stacked at the feeding end, spreading the dense layer of chili peppers evenly onto the surface of the first conveyor belt 6, and preventing the feed from piling up.

[0032] like Figure 2 and Figure 3As shown, the first grading structure 7, the second grading structure 8, and the third grading structure 9 are all inclined downward towards the first side plate 1. The distance between two adjacent material distribution pipes 14 of the first grading structure 7 is L1, the distance between two adjacent material distribution pipes 14 of the second grading structure 8 is L2, and the distance between two adjacent material distribution pipes 14 of the third grading structure 9 is L3, where L1 < L2 < L3. The inclined grading structure enables the peppers to automatically roll towards the first side plate 1 under the action of gravity. The distance settings of L1 < L2 < L3 form a screening gradient from small to large, ensuring that peppers of different diameters pass through the corresponding material distribution pipes 14 in sequence, achieving precise grading.

[0033] As Figure 1 shown, the first side plate 1 is provided with three discharge holes 13. The first side plate 1 and the second side plate 2 are jointly connected with a collection plate 12, and the side of the collection plate 12 close to the first side plate 1 is inclined downward. The graded peppers slide along the inclined collection plate 12 and fall into the lower collection device through the discharge holes 13, realizing the automatic collection of graded peppers by gravity without manual intervention.

[0034] As Figures 1 to 3 shown, brushes 31 are connected to both sides of the first side plate 1 and the second side plate 2 close to the first conveyor belt 6. The brushes 31 form a flexible buffer layer. When the peppers move with the first conveyor belt 6 or contact the side plates, the brushes 31 avoid the direct collision and friction between the peppers and the rigid side plates through elastic contact, protecting the pepper skin from damage.

[0035] As Figure 2 shown, rubber paddles 17 are connected to both the left and right sides of the second baffle 16. Both the first baffle 15 and the second baffle 16 are inclined. The inclined first baffle 15 and second baffle 16 guide the peppers to move towards the grading structure. When peppers with a larger diameter fail to pass through the distance between the material distribution pipes 14 of the previous stage, the rubber paddles 17 swing elastically with the inclination angle of the baffle, assisting the peppers to move towards the secondary grading structure (such as pushing from the first grading structure 7 to the second grading structure 8) with a flexible thrust. At the same time, the rubber material avoids hard extrusion from damaging the peppers.

[0036] The specific implementation process is as follows:

[0037] Add the peppers to the right side of the feeding baffle 3. The peppers to be graded are guided by the feeding baffle 3 above the first conveyor belt 6. Start the second motor 21, and its output end drives the first driving wheel 18 to rotate. Through the first conveyor belt 6, the first driven wheel 19 is driven to rotate synchronously, enabling the peppers to move along the first conveyor belt 6 towards the grading structure. At the same time, the second motor 21 drives the second driven wheel 23 and the rotating shaft 4 to rotate through the second driving wheel 22 at the output end via the second conveyor belt 24, causing the material distribution plate 5 connected to the rotating shaft 4 to rotate synchronously, pushing the stacked peppers at the feeding end horizontally and spreading them flat on the surface of the first conveyor belt 6 to avoid accumulation.

[0038] When the chili peppers are conveyed below the first grading structure 7, the second grading structure 8, and the third grading structure 9, the first motor 20 is activated. Its output drives the second grading structure 8 to rotate. Through the third drive wheel 27 and the fourth drive wheel 28, the first grading structure 7 and the third grading structure 9 rotate synchronously via the third conveyor belt 29 and the fourth conveyor belt 30. All three grading structures are inclined downwards towards the first side plate 1. As the distribution pipe 14 rotates with the connecting ring 11 and the connecting plate 10, the chili peppers roll along the surface of the distribution pipe 14 under the action of gravity. Chili peppers with a diameter smaller than the spacing L1 of the distribution pipe 14 in the first grading structure 7 fall through the gap to the collection plate 12 below; chili peppers that fail to pass through L1 continue to roll to the second grading structure 8, chili peppers with a diameter smaller than L2 fall through the gap, and so on, until the chili peppers with the largest diameter finally pass through the L3 spacing of the third grading structure 9 to complete the screening.

[0039] After grading, the chilies fall onto the inclined collecting plate 12, slide along the plate surface into the discharge hole 13 of the first side plate 1, and fall into the corresponding collecting device below. During this process, the brushes 31 on the side walls of the first side plate 1 and the second side plate 2 make slight contact with the chilies, cushioning their collision with the side plates and preventing damage to the skin. The first baffle 15 and the second baffle 16 guide the flow of chilies through their inclined angle. When larger chilies get stuck in the gap of the distributing pipe 14, the rubber paddles 17 on both sides of the second baffle 16 generate a flexible pushing force through elastic swinging, assisting the chilies to move towards the secondary grading structure, avoiding blockage and protecting the chilies from hard compression.

[0040] The entire process utilizes a motor-driven transmission system, combined with the spacing differences of the grading structure and the effect of gravity, to achieve automated grading and screening of chili peppers according to their diameter. At the same time, auxiliary structures such as flattening, buffering, and material spreading improve screening efficiency and the integrity of the chili peppers.

[0041] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A screening device for classifying chili pepper grades, characterized in that: Includes a first side plate (1) and a second side plate (2). The second side plate (2) is connected to a second motor (21). The output end of the second motor (21) is connected to a first drive wheel (18). The other end of the first drive wheel (18) is rotatably connected to the first side plate (1). The first side plate (1) and the second side plate (2) are rotatably connected to a first driven wheel (19). The first drive wheel (18) and the first driven wheel (19) are rotatably connected to a first conveyor belt (6). The first side plate (1) and the second side plate (2) are rotatably connected to a feed baffle (3), a first baffle (15), and several second baffles (16). The first side plate (1) and the second side plate (2) are rotatably connected to a first grade structure (7), a second grade structure (8), and a third grade structure (9) with the same structure. The second side plate (2) is connected to a first motor (20). The output end of the first motor (20) is connected to the second grade structure (8). The second grade structure (8) is connected to a third drive wheel (27) and a fourth drive wheel (28). The first grade structure (7) includes a connecting ring (11), which is rotatably connected to the side wall of the first side plate (1). The second side plate (2) is rotatably connected to a connecting plate (10). The connecting plate (10) and the connecting ring (11) are connected to a material distribution pipe (14). The two connecting plates (10) located on both sides of the second grade structure (8) are respectively connected to a third driven wheel (25) and a fourth driven wheel (26). The third driven wheel (25) and the third driving wheel (27) are connected to a third conveyor belt (29). The fourth driving wheel (28) and the fourth driven wheel (26) are connected to a fourth conveyor belt (30).

2. The screening device for classifying chili pepper grades as described in claim 1, characterized in that: The output end of the second motor (21) is connected to the second drive wheel (22), and the inner wall of the second side plate (2) is rotatably connected to the shaft (4). The shaft (4) passes through the side wall of the second side plate (2) and is rotatably connected to the second side plate (2). The shaft (4) is connected to the second driven wheel (23). The second driven wheel (23) and the second drive wheel (22) are connected to the second conveyor belt (24). The shaft (4) is connected to several material distribution plates (5).

3. The screening device for classifying chili pepper grades as described in claim 1, characterized in that: The first hierarchical structure (7), the second hierarchical structure (8), and the third hierarchical structure (9) are all inclined downwards toward the first side plate (1). The distance between two adjacent material distribution pipes (14) of the first hierarchical structure (7) is L1, the distance between two adjacent material distribution pipes (14) of the second hierarchical structure (8) is L2, and the distance between two adjacent material distribution pipes (14) of the third hierarchical structure (9) is L3. <L2<L3。 4. The chili pepper grading and sorting device as described in claim 1, characterized in that: The first side plate (1) has several discharge holes (13), and the first side plate (1) and the second side plate (2) are connected together to several collection plates (12), which are inclined.

5. The chili pepper grading and sorting device as described in claim 1, characterized in that: The first side plate (1) and the second side plate (2) are connected to the side walls with brushes (31).

6. The screening device for classifying chili pepper grades as described in claim 1, characterized in that: Rubber paddles (17) are connected to both sides of the second baffle (16), and the first baffle (15) and the second baffle (16) are inclined.

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