Grading treatment device for agricultural products

Abstract

The utility model relates to the technical field of screening equipment, and discloses an agricultural product grading treatment device which comprises a grading screening box, a plurality of screening cavities are formed in the grading screening box, a plurality of screening rods are placed in each screening cavity, two adjusting plates are arranged in each screening cavity, and the adjusting plates are arranged in the grading screening box. Each adjusting plate is provided with a plurality of inclined variable-pitch grooves, the variable-pitch grooves in each adjusting plate are arranged from the middle of the adjusting plate to the two ends of the adjusting plate, the inclination angles of the variable-pitch grooves are increased in an arithmetic progression mode, and the side face of each screening rod is fixedly connected with two adjusting rods matched with the variable-pitch grooves. An adjusting unit used for adjusting the position of the adjusting plate is arranged between the grading screening box and the adjusting plate, and a pushing unit used for pushing materials is arranged on the grading screening box. According to the agricultural product grading screening device, when the adjusting plate moves, the distance between every two adjacent screening rods can be adjusted, then the effect of grading screening of agricultural products of different types and sizes can be achieved, and the applicability of the whole device is improved.

Description

Technical Field

[0001] This utility model relates to the field of screening equipment technology, specifically an agricultural product grading and processing device. Background Technology

[0002] In agricultural product processing, grading is usually used to select agricultural products of different qualities. Existing agricultural product grading equipment usually distinguishes them according to size and sorts them through grading and screening devices.

[0003] A search revealed a patent, CN214812443U, which discloses an agricultural product grading device. This device includes a washing mechanism, a ramp feeding mechanism, and a sorting mechanism. The washing mechanism is connected to the ramp feeding mechanism, and the sorting mechanism is also connected to the ramp feeding mechanism. The sorting mechanism consists of a multi-layer screening structure connected to the ramp feeding mechanism and a bottom storage structure. A rapid drying mechanism is provided on the ramp feeding mechanism. The advantages of this invention are that the agricultural product grading device has a simple structure and is easy to operate. Through the disassembly and coordination of the washing mechanism, ramp feeding mechanism, and sorting mechanism, a production line capable of quickly washing and grading agricultural products is assembled. Furthermore, the use of a multi-layer sorting mechanism and a bottom storage structure, employing multi-layer height-changing screening methods, effectively grades the materials. The device is easy to operate, has a simple structure, and offers excellent cost-effectiveness.

[0004] The aforementioned patents have significant beneficial effects, but in practical application, they still have the following shortcomings:

[0005] The aforementioned comparative documents describe the grading and screening of agricultural products by setting sieve holes on a fixed sieve plate. However, in reality, agricultural products are diverse, and their sizes vary considerably. The sieve hole diameter in the aforementioned comparative documents is a fixed value and cannot be adjusted according to different types of agricultural products. Consequently, different sized sieve plates need to be customized for grading and screening different types of agricultural products, thus reducing the applicability of the overall device. Therefore, there is an urgent need in the field to improve the agricultural product grading and screening device to overcome the shortcomings of the prior art. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides an agricultural product grading and processing device, thereby improving the overall applicability of the device.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an agricultural product grading and processing device, comprising a grading and screening box, wherein the grading and screening box is provided with a plurality of screening chambers, each screening chamber is provided with a plurality of screening rods, each screening chamber is provided with two adjusting plates, each adjusting plate is provided with a plurality of inclined variable-distance grooves, the variable-distance grooves on each adjusting plate are arranged from the middle of the adjusting plate to both ends, the inclination angle of the variable-distance grooves increases in an arithmetic sequence, each screening rod is fixedly connected to two adjusting rods adapted to the variable-distance grooves on its side, an adjusting unit for adjusting the position of the adjusting plate is provided between the grading and screening box and the adjusting plates, and a pushing unit for pushing materials is provided on the grading and screening box.

[0008] Preferably, the adjustment unit includes threaded posts fixedly connected to both ends of each adjustment plate, and the grading and screening box has several adjustment slots adapted to the threaded posts on opposite sides. One end of the threaded post extends through the adjustment slot to the outside and its side is threadedly connected to a first limiting nut.

[0009] Preferably, the pushing unit includes two fixed plates fixedly connected to the upper part of the grading and screening box, two drive rollers rotatably connected between the two fixed plates, a drive motor for driving the drive rollers to rotate is fixedly installed on one side of the fixed plate, a transmission belt is sleeved between the sides of the two drive rollers, and a pushing plate adapted to several screening rods is fixedly installed on the side of the transmission belt.

[0010] Preferably, each of the screening chambers is provided with two symmetrical limiting plates, and the opposite sides of the grading screening box are threaded with a number of adjusting threaded rods whose ends are rotatably connected to one side of the corresponding limiting plate. The adjusting threaded rods are threaded with a second limiting nut on their side.

[0011] Preferably, each of the limiting plates has several limiting rods fixedly connected to one side, and one end of each limiting rod passes through the grading and screening box.

[0012] Preferably, the lower part of the grading and screening box is provided with several guide covers, and the cavity inside the guide covers is wider at the top and narrower at the bottom and is adapted to the screening cavity.

[0013] Preferably, a discharge trough is fixedly installed on one side of the grading and screening box, and the discharge trough is inclined and located at the grading and screening tail end of the grading and screening box.

[0014] To address the shortcomings of existing technologies, this utility model provides an agricultural product grading and processing device, overcoming the deficiencies of the prior art. The beneficial effects of this utility model are as follows:

[0015] 1. In this utility model, the adjustment unit adjusts the position of the adjustment plate, which moves horizontally. When the adjustment plate moves, it drives the adjustment rod inserted in the variable pitch groove to move. The variable pitch grooves on each adjustment plate are arranged from the middle of the adjustment plate to both ends, and the inclination angle of the variable pitch grooves increases in an arithmetic sequence. When the adjustment plate moves, the distance between two adjacent screening rods can be adjusted, thereby achieving the effect of grading and screening agricultural products of different sizes and improving the applicability of the overall device.

[0016] 2. In this utility model, the drive motor drives the transmission belt to move, and the transmission belt drives the pusher plate to move. The pusher plate pushes the agricultural products located on the screening rod to move. Through the pusher plate, agricultural products with poor rolling effect can be graded and screened, improving the applicability of the overall device.

[0017] 3. In this utility model, the gap between the screening rods on both sides and the inner wall of the screening chamber is protected by the limiting plate, so as to prevent the agricultural products from being pushed after the spacing of the screening rods is adjusted. The position of the limiting plate can be adjusted by adjusting the threaded rod, which is suitable for protecting the agricultural products during the pushing process after the spacing between several screening rods is adjusted.

[0018] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures pointed out in the description, claims, and drawings. Attached Figure Description

[0019] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a partial cross-sectional structural diagram of the grading and screening box in this utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the adjusting plate in this utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the screening rod in this utility model;

[0024] Figure 5 This is a schematic diagram of the limiting plate in this utility model;

[0025] Figure 6 for Figure 1Enlarged structural diagram at point A in the middle.

[0026] In the diagram: 1. Grading and screening box; 2. Screening chamber; 3. Screening rod; 4. Adjusting plate; 5. Variable pitch groove; 6. Adjusting rod; 7. Adjusting unit; 8. Pushing unit; 9. Threaded column; 10. Adjusting groove; 11. First limit nut; 12. Fixing plate; 13. Drive roller; 14. Drive motor; 15. Transmission belt; 16. Pushing plate; 17. Limiting plate; 18. Adjusting threaded rod; 19. Second limit nut; 20. Limiting rod; 21. Guide cover; 22. Discharge groove. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figures 1-6 An agricultural product grading and processing device includes a grading and screening box 1, which has several screening chambers 2. Each screening chamber 2 contains several screening rods 3. Each screening chamber 2 has two adjusting plates 4. Each adjusting plate 4 has several inclined variable-pitch grooves 5. The variable-pitch grooves 5 on each adjusting plate 4 are arranged from the middle of the adjusting plate 4 to both ends. The inclination angle of the variable-pitch grooves 5 increases in an arithmetic sequence. Each screening rod 3 has two adjusting rods 6 that are adapted to the variable-pitch grooves 5 fixedly connected to its side. An adjusting unit 7 for adjusting the position of the adjusting plate 4 is provided between the grading and screening box 1 and the adjusting plate 4. A pushing unit 8 for pushing materials is provided on the grading and screening box 1.

[0029] Specifically, when agricultural products need to be graded, they are first cleaned by a cleaning device. The cleaned agricultural products are then conveyed to the grading and screening box 1 by a conveying device. Once inside one end of the grading and screening box 1, the agricultural products are pushed by a pushing unit 8. The agricultural products slide or roll on several screening rods 3, and the distance between adjacent screening rods 3 on several screening chambers 2 increases in an arithmetic sequence along the pushing direction. If the distance between two adjacent screening rods 3 is smaller than the distance between two adjacent screening rods 3, the agricultural product will fall, thus achieving the grading of the agricultural products. To achieve the desired screening effect, when different types of agricultural products need to be graded and screened, the position of the adjusting plate 4 is adjusted by the adjusting unit 7. The adjusting plate 4 moves horizontally, and when it moves, it drives the adjusting rod 6 inserted in the variable pitch groove 5 to move. The variable pitch groove 5 on each adjusting plate 4 is arranged from the middle of the adjusting plate 4 to both ends, and the inclination angle of the variable pitch groove 5 increases in an arithmetic sequence. When the adjusting plate 4 moves, the distance between two adjacent screening rods 3 can be adjusted, thereby achieving the effect of grading and screening agricultural products of different sizes and improving the applicability of the overall device.

[0030] As a technical optimization of this utility model, the adjustment unit 7 includes threaded posts 9 fixedly connected to both ends of each adjustment plate 4. The grading and screening box 1 has several adjustment grooves 10 adapted to the threaded posts 9 on opposite sides. One end of the threaded post 9 extends through the adjustment groove 10 to the outside and its side is threadedly connected to a first limiting nut 11.

[0031] Specifically, when the position of the adjusting plate 4 needs to be adjusted, the first limiting nut 11 is loosened, and the threaded post 9 moves in the adjusting groove 10, thereby adjusting the position of the adjusting plate 4. After the position of the adjusting plate 4 is adjusted, the first limiting nut 11 is tightened to limit the position of the threaded post 9, which facilitates the adjustment of the position of the adjusting plate 4.

[0032] As a technical optimization of this utility model, the pushing unit 8 includes two fixed plates 12 fixedly connected to the upper part of the grading and screening box 1. Two drive rollers 13 are rotatably connected between the two fixed plates 12. A drive motor 14 for driving the drive rollers 13 to rotate is fixedly installed on one side of the fixed plate 12. A transmission belt 15 is sleeved between the sides of the two drive rollers 13. A pushing plate 16 adapted to several screening rods 3 is fixedly installed on the side of the transmission belt 15.

[0033] Specifically, when agricultural products are conveyed to the grading and screening box 1, the drive motor 14 is started. The output end of the drive motor 14 drives the drive roller 13 to rotate. The rotation of the drive roller 13 drives the transmission belt 15 to move. The transmission belt 15 drives the pusher plate 16 to move. The pusher plate 16 pushes the agricultural products located on the screening rod 3 to move. Through the pusher plate 16, agricultural products with poor rolling effect can be graded and screened, improving the applicability of the overall device.

[0034] As a technical optimization of this utility model, each screening chamber 2 is provided with two symmetrical limiting plates 17. Several adjusting threaded rods 18 are threaded through and connected to one side of the corresponding limiting plate 17 on opposite sides of the grading screening box 1. The adjusting threaded rods 18 are threaded through and connected to the side of the corresponding limiting plate 17. A second limiting nut 19 is threaded through the side of the adjusting threaded rod 18. Several limiting rods 20 are fixedly connected to one side of each limiting plate 17. One end of the limiting rod 20 passes through the grading screening box 1.

[0035] Specifically, after adjusting the positions of several screening rods 3, there is a gap between the screening rods 3 on both sides of each screening chamber 2 and the inner wall of the screening chamber 2. If the gap is larger than the volume of the agricultural product, the agricultural product is blocked by the limiting plate 17. The position of the limiting plate 17 can be adjusted by rotating the adjusting threaded rod 18 so that the limiting plate 17 is adapted to the screening rods 3 on both sides of each screening chamber 2. When the adjusting threaded rod 18 is rotated, the limiting plate 17 is driven to move. At the same time, the limiting rod 20 limits the position of the limiting plate 17. After the position of the limiting plate 17 is adjusted, the second limiting nut 19 is tightened to limit and fix the position of the adjusting threaded rod 18.

[0036] As a technical optimization of this utility model, the lower part of the grading and screening box 1 is provided with several guide covers 21. The cavity inside the guide cover 21 is wider at the top and narrower at the bottom and is adapted to the screening cavity 2. A discharge groove 22 is fixedly installed on one side of the grading and screening box 1. The discharge groove 22 is inclined and located at the grading and screening tail end of the grading and screening box 1.

[0037] Specifically, the guide hood 21 is used to discharge the screened agricultural products, and individual agricultural products that are too large are discharged through the discharge trough 22.

[0038] The drive motor 14 mentioned above can be purchased from the market. It is a mature technology that has been fully disclosed, so it will not be repeated in the specification. The drive motor 14 is equipped with a power connection line, and it is electrically connected to the external main controller and 220V phase voltage (or 380V line voltage) through the power connection line. The main controller can be a conventional known device such as a computer that plays a control role.

[0039] Finally, it should be noted that in the description of this utility model, the terms "vertical," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0040] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0041] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A grading plant for agricultural products, comprising a grading box (1), characterized in that, The grading screening box (1) is provided with a plurality of screening cavities (2), a plurality of screening rods (3) are placed in each screening cavity (2), each screening cavity (2) is provided with two adjusting plates (4), a plurality of inclined variable-distance grooves (5) are formed in each adjusting plate (4), the variable-distance grooves (5) on each adjusting plate (4) are arranged from the middle of the adjusting plate (4) to both ends, the inclination angles of the variable-distance grooves (5) increase in an arithmetic progression, each screening rod (3) is fixedly connected with two adjusting rods (6) matched with the variable-distance grooves (5), an adjusting unit (7) for adjusting the position of the adjusting plate (4) is arranged between the grading screening box (1) and the adjusting plate (4), and a pushing unit (8) for pushing the material is arranged on the grading screening box (1).

2. The agricultural product grading apparatus of claim 1, wherein, The adjusting unit (7) comprises threaded columns (9) fixedly connected to both ends of each adjusting plate (4), a plurality of adjusting grooves (10) matched with the threaded columns (9) are formed in the opposite sides of the grading screening box (1), and one end of the threaded column (9) extends to the outside through the adjusting groove (10) and is screw-connected with a first limiting nut (11) on the side surface.

3. The agricultural product grading apparatus of claim 1, wherein, The pushing unit (8) comprises two fixed plates (12) fixedly connected to the upper portion of the grading screening box (1), two driving rollers (13) are rotatably connected between the two fixed plates (12), a driving motor (14) for driving the driving roller (13) to rotate is fixedly installed on one side of the fixed plate (12), a transmission belt (15) is sleeved between the side surfaces of the two driving rollers (13), and a pushing plate (16) matched with the plurality of screening rods (3) is fixedly installed on the side surface of the transmission belt (15).

4. The agricultural product grading apparatus of claim 1, wherein, Each screening cavity (2) is provided with two symmetrical limiting plates (17), a plurality of adjusting threaded rods (18) with one end rotatably connected to one side of the corresponding limiting plate (17) are threadedly connected through the opposite sides of the grading screening box (1), and a second limiting nut (19) is threadedly connected to the side surface of the adjusting threaded rod (18).

5. A grading apparatus for agricultural products as claimed in claim 4 wherein, One side of each limiting plate (17) is fixedly connected with a plurality of limiting rods (20), and one end of the limiting rod (20) penetrates the grading screening box (1).

6. The agricultural product grading apparatus of claim 1, wherein, The lower portion of the grading screening box (1) is provided with a plurality of guide covers (21), and the inner cavity of the guide cover (21) is wide at the top and narrow at the bottom and is matched with the screening cavity (2).

7. The agricultural product grading apparatus of claim 1, wherein, A discharge groove (22) is fixedly installed on one side of the grading screening box (1), and the discharge groove (22) is inclined and located at the tail end of the grading screening box (1).

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