Screening device for corn seeds

Abstract

The utility model relates to the technical field of corn seed screening, and discloses a screening device for corn seeds, which comprises a fixed bottom plate and a screening box, one side of the top of the screening box is communicated and provided with a feed port, and a hollow area is formed on a partition plate and positioned on the right side of a baffle plate. The partition plate is fixedly installed at the upper position in the screening box, the top of the partition plate is divided into two areas, one area is the solid area, the other area is the hollow area, after an air bellow is assembled, the air feeder on the side edge is started to work to supply air, airflow is guided into the screening box through the circulating pipe after being filtered through the filter plate, and therefore the screening effect is achieved. Therefore, when feeding is conducted at the position of the feeding port, air flow blows corn seeds to shift rightwards to reach the position above the hollow area, particles such as stones with the gravity larger than that of the corn seeds are located above the solid area, and the materials flow out of the hollow area and are screened through the screening plate under guiding of the material guiding plate. In this way, the overall screening capacity is well improved in the working process.

Description

Technical Field

[0001] This utility model relates to the field of corn seed screening technology, specifically a corn seed screening device. Background Technology

[0002] Corn seeds are reproductive bodies capable of growing into mature corn plants. They are formed from ovules through pollination and fertilization, and mainly consist of three parts: the seed coat, the embryo, and the endosperm. Based on type, they can be divided into conventional varieties, inbred lines, single-cross varieties, double-cross varieties, and triple-cross varieties. Hybrid corn seeds are the most common seeds used in agricultural production. To ensure the quality of corn seeds, screening is necessary during seed selection.

[0003] The main purpose of corn seed screening is to ensure the purity and quality of the seeds, thereby improving planting results and yield. However, corn seeds are prone to contain some material impurities, such as stones and gravel. These stones and gravel are mostly small in size and can easily pass through the sieve holes during screening, thus affecting the screening effect. Utility Model Content

[0004] The purpose of this utility model is to provide a screening device for corn seeds to solve the problem mentioned in the background art that corn seeds are easily mixed with some stones and gravel, and that these stones and gravel are mostly small in size and easily pass through the sieve holes during screening, thus affecting the screening effect.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a screening device for corn seeds, comprising a fixed base plate and a screening box. A feed inlet is connected to one side of the top of the screening box. A horizontal plate is fixed at the upper position of the side of the screening box. A bellows is installed above the horizontal plate. A flow pipe is connected to the side of the bellows. A filter plate is assembled inside the bellows. A blower is installed on the other side of the bellows. A partition plate is fixed at the upper position inside the screening box. A baffle is fixed at the middle position of the top of the partition plate. A solid area is formed on the partition plate to the left of the baffle, and a hollow area is formed on the partition plate to the right of the baffle.

[0006] As a further technical solution of this utility model, one side of the flow tube is connected to the interior of the screening box, and the flow tube is equipped with a solenoid valve.

[0007] As a further technical solution of this utility model, the top height of the partition plate is lower than the bottom height of the flow pipe, and the front-to-back length of the baffle is the same as the front-to-back length of the partition plate.

[0008] As a further technical solution of this utility model, a ramp is fixed at the bottom of the screening box, and the height of one side of the top of the ramp is greater than the height of the other side.

[0009] As a further technical solution of this utility model, a discharge port is connected and installed on the lower left side of the screening box, a connecting plate is fixed on the right side of the inner wall of the screening box, a guide plate is assembled between the upper and lower connecting plates, the outer wall of the guide plate is coated with a wear-resistant layer, and mounting bolts for connection and fixation are provided between the guide plate and the connecting plate.

[0010] As a further technical solution of this utility model, the inner walls of the screening box are fixed with assembly plates on both sides, the assembly plates are provided with sliding grooves, the upper and lower assembly plates are assembled with screening plates, and the upper and lower positions of the screening plates are fixed with sliders, and the sliders and the sliding grooves form a sliding connection.

[0011] Compared with the prior art, the beneficial effects of this utility model are: this corn seed screening device not only improves the screening effect, but also improves the assembly capacity and flow guiding capacity of the screening device.

[0012] (1) By installing and fixing the partition plate in the upper position inside the screening box, the top of the partition plate is divided into two areas, one is a solid area and the other is a hollow area. After the air box is assembled, the side blower is started to deliver air. The airflow is filtered by the filter plate and then guided to the inside of the screening box through the flow pipe. Therefore, when feeding at the feed inlet, the airflow blows the corn seeds to the right and reaches the top of the hollow area, while the particles such as stones with a greater weight than the corn seeds are located above the solid area. After being separated by the baffle, the material can flow out from the hollow area and be screened by the screening plate under the guidance of the guide plate. In this way, the overall screening capacity is improved in the working process.

[0013] (2) By installing and fixing the assembly plate on both sides of the inner wall of the screening box, and opening a sliding groove in the assembly plate, and fixing sliders at the upper and lower positions on both sides of the screening plate, the sliders can be assembled along the sliding groove when assembling the screening plate, which facilitates the guiding assembly of the screening plate and makes it more convenient to replace it, thus improving the overall assembly capability.

[0014] (3) By fixing the connecting plate to the side of the inner wall of the screening box, the two connecting plates are assembled at an angle and are parallel. Therefore, the guide plate can be inserted at an angle between the upper and lower connecting plates. Then, the position is locked by the installation bolt between the guide plate and the connecting plate. Therefore, the guide plate assembly is also in an angled state, which can guide the raw materials. After the wear-resistant layer is coated, the wear resistance is improved to a certain extent. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0016] Figure 2This is a top view of the guide plate structure of this utility model;

[0017] Figure 3 This is a three-dimensional structural diagram of the partition plate of this utility model;

[0018] Figure 4 For the present utility model Figure 1 Enlarged cross-sectional view of point A in the middle.

[0019] In the diagram: 1. Fixed base plate; 2. Screening box; 3. Inclined plate; 4. Screening plate; 5. Guide plate; 6. Divider plate; 7. Feed inlet; 8. Flow pipe; 9. Air box; 10. Filter plate; 11. Blower; 12. Discharge port; 13. Connecting plate; 14. Mounting bolt; 15. Wear-resistant layer; 16. Solid area; 17. Baffle; 18. Hollow area; 19. Assembly plate; 20. Slide groove; 21. Sliding block. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1-4 An embodiment of this utility model provides a corn seed screening device, including a fixed base plate 1 and a screening box 2. A feed inlet 7 is connected to one side of the top of the screening box 2. A horizontal plate is fixed at the upper position of the side of the screening box 2. A wind box 9 is installed above the horizontal plate. A flow pipe 8 is connected to the side of the wind box 9. A filter plate 10 is assembled inside the wind box 9. A blower 11 is installed on the other side of the wind box 9. A partition plate 6 is fixed at the upper position inside the screening box 2. A baffle 17 is fixed at the middle position of the top of the partition plate 6. A solid area 16 is formed on the partition plate 6 at the left side of the baffle 17, and a hollow area 18 is formed on the partition plate 6 at the right side of the baffle 17.

[0022] One side of the flow tube 8 is connected to the interior of the screening box 2, and the flow tube 8 is equipped with a solenoid valve.

[0023] The top height of the partition plate 6 is lower than the bottom height of the flow pipe 8, and the front-to-back length of the baffle 17 is the same as the front-to-back length of the partition plate 6.

[0024] A ramp plate 3 is fixed at the bottom of the screening box 2, and the height of one side of the top of the ramp plate 3 is greater than the height of the other side.

[0025] A discharge port 12 is connected and installed on the lower left side of the screening box 2. A connecting plate 13 is fixed on the right side of the inner wall of the screening box 2. A guide plate 5 is assembled between the upper and lower connecting plates 13. The outer wall of the guide plate 5 is coated with a wear-resistant layer 15. The guide plate 5 and the connecting plate 13 are equipped with mounting bolts 14 for connection and fixation.

[0026] Assembly plates 19 are fixed on both sides of the inner wall of the screening box 2. A sliding groove 20 is provided in the assembly plate 19. A screening plate 4 is assembled between the upper and lower assembly plates 19. Slider 21 is fixed at the upper and lower positions on both sides of the screening plate 4. The slider 21 and the sliding groove 20 form a sliding connection.

[0027] Furthermore, a door is installed on the front end of the screening box 2. The design of the door facilitates the assembly and replacement of internal components such as the screening plate 4 and the guide plate 5.

[0028] The feed inlet 7, the discharge outlet 12, and the flow pipe 8 are all equipped with necessary valves to facilitate the opening and closing of the flow rate;

[0029] Furthermore, the feed inlet 7 is located on the top left side of the screening box 2, thus the feed inlet 7 is located above the solid area 16.

[0030] Working principle: First, during operation, the connecting plate 13 is fixed to the side of the inner wall of the screening box 2. The two connecting plates 13 are assembled at an angle and are parallel. Therefore, the guide plate 5 can be inserted at an angle between the upper and lower connecting plates 13. Then, the position is locked between the guide plate 5 and the connecting plate 13 using the mounting bolts 14. Thus, the guide plate 5 is in an inclined state after assembly. The blower 11 is started to deliver air. After the airflow is filtered by the filter plate 10, it is guided to the interior of the screening box 2 through the flow pipe 8. Therefore, when feeding at the feed inlet 7, the airflow blows the corn seeds to the right and reaches the top of the hollow area 18, while the particles with a greater weight than the corn seeds, such as stones, are located above the solid area 16. After being separated by the baffle 17, the material flows out from the hollow area 18 and is screened by the screening plate 4 under the guidance of the guide plate 5. The screened corn seeds roll above the inclined plate 3 and are finally discharged at the discharge outlet 12.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 based on the specific circumstances.

Claims

1. A screening device for corn seeds, comprising a fixed base plate (1), a screening box (2), characterized in that: A feed inlet (7) is connected to one side of the top of the screening box (2). A horizontal plate is fixed at the upper side of the screening box (2). A blower (9) is installed above the horizontal plate. A flow pipe (8) is connected to the side of the blower (9). A filter plate (10) is installed inside the blower (9). A blower (11) is installed on the other side of the blower (9). A partition plate (6) is fixed at the upper part of the screening box (2). A baffle (17) is fixed at the middle position of the top of the partition plate (6). A solid area (16) is formed on the partition plate (6) at the left side of the baffle (17). A hollow area (18) is formed on the partition plate (6) at the right side of the baffle (17).

2. The corn seed screening device according to claim 1, characterized in that: One side of the flow tube (8) is connected to the interior of the screening box (2), and the flow tube (8) is equipped with a solenoid valve.

3. The corn seed screening device according to claim 1, characterized in that: The top height of the partition plate (6) is lower than the bottom height of the flow pipe (8), and the front-to-back length of the baffle (17) is the same as the front-to-back length of the partition plate (6).

4. The corn seed screening device according to claim 1, characterized in that: A ramp plate (3) is fixed at the bottom of the screening box (2), and the height of one side of the top of the ramp plate (3) is greater than the height of the other side.

5. A corn seed screening device according to claim 1, characterized in that: The screening box (2) has a discharge port (12) connected to the lower left side. A connecting plate (13) is fixed to the right side of the inner wall of the screening box (2). A guide plate (5) is assembled between the upper and lower connecting plates (13). The outer wall of the guide plate (5) is coated with a wear-resistant layer (15). The guide plate (5) and the connecting plate (13) are equipped with mounting bolts (14) for connection and fixation.

6. A corn seed screening device according to claim 1, characterized in that: The inner walls of the screening box (2) are fixed with assembly plates (19) on both sides. The assembly plates (19) have grooves (20) in them. A screening plate (4) is assembled between the upper and lower assembly plates (19). Slider blocks (21) are fixed at the upper and lower positions on both sides of the screening plate (4). The sliders (21) and the grooves (20) form a sliding connection.

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