Classified screening equipment for crops

Abstract

The utility model provides classified screening equipment for crops, which comprises a screening bin and a buffering bin, and is characterized in that the buffering bin is positioned above one side of the screening bin, and a first screening structure, a buffering net structure and a second screening structure are arranged in the screening bin; the buffer net structure is arranged between the first screening structure and the second screening structure; crops are buffered layer by layer in the buffering bin through the buffering plates, the crops orderly enter the screening bin through the discharging opening, blocking caused by accumulation of the crops is prevented, the crops are screened on the first screening structure back and forth, and the crops which do not meet the specified size fall into the second screening structure through the buffering net. Through layer-by-layer back-and-forth screening, the situation that screened crops of all grades are not uniform in size and collide with each other in surface is prevented, and the standard performance of products is guaranteed.

Description

Technical Field

[0001] This utility model relates to the technical field, and in particular to a grading and screening device for crops. Background Technology

[0002] With the opening of the international market and the continuous improvement of people's living standards, people's requirements for the quality of agricultural products, especially fruits, are constantly increasing, making the screening and classification work more and more difficult. Now, the classification of round fruits such as apples, oranges, and peaches in the market mainly relies on manual labor and machines.

[0003] Existing domestic sorting equipment is very rudimentary and time-consuming to operate, easily causing machine blockage and uneven sorting. Many machines cannot guarantee the integrity of the fruit during sorting, resulting in damaged and unqualified sorted products that need to be sorted again. Therefore, this utility model proposes a grading and screening device for agricultural products to solve the problems existing in the prior art. Utility Model Content

[0004] To address the aforementioned problems, this utility model proposes a grading and screening device for crops. This device uses a buffer chamber with layers of buffer plates to buffer the crops, allowing them to enter the screening chamber in an orderly manner through the feed inlet. This prevents the crops from accumulating and causing blockages. The crops are repeatedly screened on the first screening structure, and those that do not meet the specified size requirements fall through a buffer net into the second screening structure. This repeated screening process prevents uneven size distribution among the different grades of crops, avoids damage to falling fruits, and ensures product standardization.

[0005] To achieve the purpose of this utility model, the utility model is implemented through the following technical solution: a grading and screening device for crops, including a screening chamber and a buffer chamber, characterized in that: the buffer chamber is located above one side of the screening chamber, and the interior of the screening chamber is provided with a first screening structure, a buffer net structure and a second screening structure, and the buffer net structure is located between the first screening structure and the second screening structure;

[0006] The first screening structure includes a first servo motor, a first roller and a bracket. The first roller is provided in several groups. The several groups of first rollers are installed inside the bracket by bearings, and adjacent first rollers are connected by belts. The first screening structure is driven by the first servo motor.

[0007] The buffer mesh structure includes a frame, a buffer mesh, and a chute. The chute is provided on both sides inside the screening chamber. The buffer mesh is installed inside the frame. The frame is slidably installed with the chute via a slider.

[0008] The second screening structure includes a second servo motor, a second roller, and a support. The second roller is provided in several groups, and the several groups of second rollers are installed inside the support through bearings. Adjacent second rollers are connected by belts. The second screening structure is driven by the second servo motor, and the distance between adjacent second rollers is smaller than the distance between adjacent first rollers.

[0009] A further improvement is made in that: a first material outlet is provided above one side of the screening chamber, a first collection box is provided below the first material outlet, a second material outlet is provided below the other side of the screening chamber, a second collection box is provided at the bottom of the second material outlet, a feeding plate is provided at the bottom of both the first and second material outlets, and an automatic door opening structure is provided at the opening of both the first and second material outlets. The automatic door opening structure includes a pneumatic cylinder and a lifting door, and the lifting door is installed at the bottom of the pneumatic cylinder.

[0010] A further improvement is that a waste box is placed at the bottom inside the screening chamber, a waste switch door is provided at the bottom of the front of the screening chamber, and an observation switch door is installed at the top of the front of the screening chamber.

[0011] A further improvement is that: a discharge port is installed on one side of the upper part of the buffer chamber, a buffer plate is installed inside the buffer chamber, and several buffer plates are installed. The buffer plates are located on both sides inside the buffer chamber and are arranged in an alternating manner with a downward inclination at °. A discharge port is installed below the buffer chamber and is connected to the screening chamber.

[0012] A further improvement is that a trolley handle is installed on one side of the screening chamber, and casters are installed at the four corners of the lower part of the screening chamber.

[0013] The beneficial effects of this utility model are as follows: This utility model includes a buffer chamber and a screening chamber. First, after the crops are put into the discharge port, they are buffered layer by layer by the buffer plates in the buffer chamber. The crops then enter the screening chamber in an orderly manner through the discharge port, preventing the accumulation of crops from causing blockages. Then, the crops are screened back and forth on the first screening structure. Crops that do not meet the specified size fall into the second screening structure through the buffer net, preventing the falling fruit from being damaged. Crops that meet the corresponding standards will remain on the corresponding screening structure. Through the back and forth screening, the size of the crops of different grades is prevented from being uneven, ensuring the standardization of the product. The buffer net also greatly preserves the integrity of the fruit. Finally, by opening the lifting doors on both sides of the screening chamber, the crops will enter the discharge box through the discharge plate. This operation saves time and effort while achieving the purpose of screening. Attached Figure Description

[0014] Figure 1 This is a cross-sectional view of the present invention;

[0015] Figure 2 This is a front view of the present invention;

[0016] Figure 3 This is a schematic diagram of the first screening structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the second screening structure of this utility model;

[0018] Figure 5 This is a schematic diagram of the buffer structure of this utility model;

[0019] Figure 6 This is a schematic diagram of the automatic door opening structure of this utility model.

[0020] The components are as follows: 1. Screening chamber; 2. Buffer chamber; 3. First screening structure; 4. First servo motor; 5. First roller; 6. Buffer screen; 7. Second screening structure; 8. Second servo motor; 9. Second roller; 10. First material outlet; 11. First collection box; 12. Second material outlet; 13. Second collection box; 14. Discharge plate; 15. Pneumatic cylinder; 16. Lifting door; 17. Waste box; 18. Opening and closing door; 19. Observation opening and closing door; 20. Discharge port; 21. Buffer plate; 22. Discharge port; 23. Frame; 24. Buffer screen; 25. Slide chute; 26. Cart handle; 27. Casters. Detailed Implementation

[0021] To deepen the understanding of this utility model, the following detailed description will be provided in conjunction with embodiments. These embodiments are only used to explain this utility model and do not constitute a limitation on the scope of protection of this utility model.

[0022] according to Figure 1 , 2 As shown in Figures 3, 4, 5, and 6, this embodiment proposes a grading and screening device for crops, including a screening chamber 1 and a buffer chamber 2. The buffer chamber 2 is located above one side of the screening chamber 1. The screening chamber 1 is provided with a first screening structure 3, a buffer net structure 6, and a second screening structure 7 inside. The buffer net structure 6 is located between the first screening structure 3 and the second screening structure 7.

[0023] The first screening structure 3 includes a first servo motor 4, a first roller 5 and a bracket. The first roller 5 is provided in several groups. The several groups of first roller 5 are installed inside the bracket by bearings, and adjacent first roller 5 are connected by belts. The first screening structure 3 is driven by the first servo motor 4.

[0024] The buffer mesh structure 6 includes a frame 23, a buffer mesh 24, and a chute 25. The chute 25 is provided on both sides inside the screening chamber 1. The buffer mesh 24 is installed inside the frame 23. The frame 23 is slidably installed with the chute 25 by a slider.

[0025] The second screening structure 7 includes a second servo motor 8, a second roller 9, and a support. The second roller 9 is provided in several groups, and the several groups of second roller 9 are installed inside the support through bearings. Adjacent second roller 9 are connected by belts. The second screening structure 7 is driven by the second servo motor 8. The distance between adjacent second roller 9 is smaller than the distance between adjacent first roller 5.

[0026] A first material outlet 10 is provided above one side of the screening chamber 1, and a first collection box 11 is provided below the first material outlet 10. A second material outlet 12 is provided below the other side of the screening chamber 1, and a second collection box 13 is provided at the bottom of the second material outlet 12. A feeding plate 14 is provided at the bottom of both the first material outlet 10 and the second material outlet 12. An automatic door opening structure is provided at the opening of both the first material outlet 10 and the second material outlet 12. The automatic door opening structure includes a pneumatic cylinder 15 and a lifting door 16. The lifting door 16 is installed at the bottom of the pneumatic cylinder 15.

[0027] A waste box 17 is placed at the bottom inside the screening chamber 1. A waste switch door 18 is provided at the bottom front of the screening chamber 1. An observation switch door 19 is installed at the top front of the screening chamber 1.

[0028] A discharge port 20 is installed on one side of the upper part of the buffer chamber 2. A buffer plate 21 is installed inside the buffer chamber 2, and several buffer plates 21 are installed. The buffer plates 21 are located on both sides inside the buffer chamber 2. The buffer plates 21 are arranged in an alternating manner with a downward inclination of 30°. A discharge port 22 is installed below the buffer chamber 2, and the discharge port 22 is connected to the screening chamber 1.

[0029] A trolley handle 26 is installed on one side of the screening chamber 1, and casters 27 are installed at the four corners of the lower part of the screening chamber 1.

[0030] This crop grading and screening equipment involves feeding crops into the inlet. The crops are then buffered by layers of buffer plates in the buffer chamber, allowing them to flow orderly through the inlet into the screening chamber and preventing blockages. Next, the crops are repeatedly screened on the first screening structure. Crops that do not meet the specified size are dropped through a buffer net into the second screening structure, preventing damage. Crops that meet the standards remain on their respective screening structures. This repeated screening process prevents uneven size distribution among the different grades of crops, ensuring product standardization. The buffer net also greatly preserves the integrity of the fruit. Finally, opening the lifting doors on both sides of the screening chamber allows the crops to pass through the discharge plate into the feeding box. This operation is both time-saving and labor-saving in achieving the screening objective.

[0031] In use, push the screening chamber to the area where crops need to be screened, and put the crops in through the discharge port. The crops are buffered by layers of buffer plates in the buffer chamber, and will enter the screening chamber in an orderly manner through the discharge port to prevent the crops from piling up and causing blockages. After falling into the first screening structure, the crops will be screened back and forth on the first screening structure. Those that do not meet the corresponding size specifications will fall into the second screening structure through the buffer net. After being screened by the second screening structure, unqualified products and debris will fall into the waste box. Finally, the qualified products will fall into the discharge box by opening the lifting door. This back and forth screening through layers prevents the crops of different grades from being of uneven size and ensures the standardization of the products.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A grading and sorting apparatus for agricultural crops, comprising a sorting bin (1) and a buffer bin (2), characterized in that: The buffer bin (2) is located above one side of the screening bin (1), the inside of the screening bin (1) is provided with a first screening structure (3), a buffer net structure (6) and a second screening structure (7), the buffer net structure (6) is arranged between the first screening structure (3) and the second screening structure (7); The first screening structure (3) comprises a first servo motor (4), a first circular roller (5) and a support, the first circular roller (5) is provided in several groups, the first circular roller (5) is mounted in the inside of the support through a bearing, and adjacent first circular rollers (5) are connected through a belt, and the first screening structure (3) is driven by the first servo motor (4). The buffer net structure (6) comprises a frame (23), a buffer net (24) and a sliding groove (25), both sides of the inside of the screening bin (1) are provided with the sliding groove (25), the buffer net (24) is mounted in the inside of the frame (23), and the frame (23) is slidably mounted with the sliding groove (25) through a sliding block. The second screening structure (7) comprises a second servo motor (8), a second circular roller (9) and a support, the second circular roller (9) is provided in several groups, the second circular roller (9) is mounted in the inside of the support through a bearing, and adjacent second circular rollers (9) are connected through a belt, and the second screening structure (7) is driven by the second servo motor (8), and the spacing between adjacent second circular rollers (9) is smaller than the spacing between adjacent first circular rollers (5).

2. A grading apparatus for agricultural crops as claimed in claim 1 wherein: A first material outlet (10) is arranged above one side of the screening bin (1), a first collecting box (11) is arranged below the first material outlet (10), a second material outlet (12) is arranged below the other side of the screening bin (1), a second collecting box (13) is arranged at the bottom of the second material outlet (12), and a discharge plate (14) is arranged at the bottom of the first material outlet (10) and the second material outlet (12).

3. A grading apparatus for agricultural crops as claimed in claim 1 wherein: A waste box (17) is arranged below the inside of the screening bin (1), a waste switch door (18) is arranged below the front of the screening bin (1), and an observation switch door (19) is arranged above the front of the screening bin (1).

4. A grading apparatus for agricultural crops as claimed in claim 1 wherein A discharge port (20) is arranged on one side of the upper part of the buffer bin (2), a buffer plate (21) is arranged in the inside of the buffer bin (2), and a plurality of buffer plates (21) are arranged, the buffer plates (21) are arranged on both sides of the inside of the buffer bin (2), the buffer plates (21) are arranged in a 30° downward inclined staggered manner, and a discharge port (22) is arranged below the buffer bin (2) and communicates with the screening bin (1).

5. A grading apparatus for agricultural crops as claimed in claim 1, wherein: A cart handle (26) is arranged on one side of the screening bin (1), and universal wheels (27) are arranged at the four corners of the lower part of the screening bin (1).

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