Screening and impurity removing device used before seed cultivation

Abstract

The utility model discloses a seed before-cultivation screening and impurity removing device which comprises a box body, a feeding hopper is fixedly arranged at the upper end of the box body, a screening box is movably inserted between the left side wall and the right side wall in the box body, and a driving assembly used for driving the screening box to do horizontal reciprocating motion is fixedly arranged on the outer side wall of the box body. A square pipeline communicated with the feeding hopper is fixedly arranged on the top face in the box body, a narrow channel allowing seeds to pass through slowly is formed in the square pipeline, a cleaning assembly used for cleaning impurities and dust on the surfaces of the seeds is fixedly arranged on one side of the square pipeline, and a dust removal mechanism is arranged on the other side of the square pipeline in a communicated mode. According to the seed cleaning device, seeds can be effectively screened, impurities and crushed seeds can be separated out, bristles in the cleaning assembly can directly act on the surfaces of the seeds to remove attached impurities such as soil and dust, the dust removal mechanism can suck away dust generated in the cleaning process in time, and the dust is prevented from accumulating in the device or polluting the seeds again.

Description

Technical Field

[0001] The utility model relates to the technical field of seed screening and impurity removal devices, in particular to a seed screening and impurity removal device before seed cultivation. Background Art

[0002] Seed cultivation is a crucial step in agricultural production and plant research. Screening and removing impurities from seeds is essential before seed cultivation. Seeds may contain various impurities, such as broken seeds, foreign particles, and other substances that may affect germination and growth. If these impurities are not removed, they can have a number of adverse effects during the seed cultivation process.

[0003] Traditional seed screening and impurity removal equipment has certain functional limitations. While most devices include basic screening structures such as screens, which can perform a certain degree of seed size screening and remove some foreign particles and broken seeds, these devices generally lack effective dust removal. During harvesting, storage, and transportation, seeds are easily affected by the external environment, resulting in large amounts of dirt, dust, and other impurities adhering to their surfaces. Relying solely on screens makes it difficult to remove these impurities, thus compromising the quality of screening and impurity removal. Utility Model Content

[0004] (1) Technical issues

[0005] The utility model provides a device for screening and removing impurities before seed cultivation, aiming to solve the problem that traditional screening and removing impurities devices are insufficient in treating dust on the surface of seeds.

[0006] (2) Technical content

[0007] In order to solve the above technical problems, the technical solution of the utility model is: a device for screening and removing impurities before seed cultivation, comprising a box body, a feed hopper fixedly provided on the upper end of the box body, a box door hingedly provided on the front side of the box body, a screen box movably inserted between the left and right side walls inside the box body, a drive assembly for driving the screen box to move horizontally back and forth fixedly provided on the outer wall of the box body, a square pipe connected to the feed hopper fixedly provided on the top surface of the box body, a narrow channel for seeds to pass slowly through the inside of the square pipe, a cleaning assembly for cleaning impurities and dust on the surface of the seeds fixedly provided on one side of the square pipe, and a dust removal mechanism connected to the other side of the square pipe.

[0008] Furthermore, guide rods are fixedly provided at both left and right ends of the screen box, linear bearings are fixedly provided on the side walls of the box body, and the guide rods pass through the linear bearings and are slidably connected to the linear bearings.

[0009] Furthermore, the drive assembly includes a mounting plate fixed to the outer wall of the box body, a motor is fixed to the rear side of the mounting plate, a disc is fixed on the drive shaft of the motor, a connecting rod is hinged at the end of the guide rod, and the other end of the connecting rod is rotatably arranged on the side of the disc near the edge.

[0010] Furthermore, the cleaning assembly includes two rotating rollers arranged on the side of the square pipe, a belt is connected between the rollers, a number of evenly distributed bristles are fixed on the surface of the belt, and a motor 2 for driving one of the rollers to rotate is fixed on the outside of the square pipe.

[0011] Furthermore, the dust removal mechanism includes a vacuum cleaner fixedly arranged on the rear side of the box body, and the dust suction port of the vacuum cleaner is connected to the interior of the square pipe through a pipe.

[0012] Furthermore, a filter is provided on the inner wall of the square pipe to prevent seeds from entering the pipe.

[0013] Furthermore, self-locking universal wheels are fixedly provided at the four corners of the bottom of the box.

[0014] Furthermore, the movement direction of one side of the belt located inside the square pipe is opposite to the falling direction of the seeds.

[0015] (3) Technical effects

[0016] Compared with the prior art, the utility model has the following advantages:

[0017] 1. Through the horizontal reciprocating motion of the screen box, the seeds can be effectively screened, impurities and broken seeds can be separated, and the purity of the seeds can be improved. The bristles in the cleaning component can directly act on the surface of the seeds to remove attached dirt, dust and other impurities. The setting of the dust removal mechanism can promptly absorb the dust generated during the cleaning process to avoid dust accumulation in the device or re-contamination of the seeds. The bristles are evenly distributed on the surface of the belt and its movement direction is opposite to the falling direction of the seeds, which enhances the cleaning effect of impurities on the surface of the seeds and improves the cleaning efficiency.

[0018] 2. The combination of the guide rod and linear bearing makes the movement of the screen box more stable and smooth, reduces friction resistance, and improves the operating stability and service life of the device. The drive assembly uses a motor, disc and connecting rod structure to provide stable reciprocating power for the screen box, ensuring continuous screening operation. The structure is simple and reliable, and easy to maintain and repair. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of a seed screening and impurity removal device before seed cultivation in the utility model. Figure 1 .

[0020] Figure 2This is a schematic diagram of the three-dimensional structure of a seed screening and impurity removal device before seed cultivation in the utility model. Figure 2 .

[0021] Figure 3 This is a schematic diagram of the three-dimensional structure of a seed screening and impurity removal device before seed cultivation in the utility model. Figure 3 .

[0022] Figure 4 The utility model is a schematic diagram of the main structure of a device for screening and removing impurities before seed cultivation.

[0023] Figure 5 The utility model is a schematic diagram of the top view of a device for screening and removing impurities before seed cultivation.

[0024] Figure 6 This is a schematic diagram of the cross-sectional structure of a seed screening and impurity removal device before seed cultivation in the utility model. Figure 1 .

[0025] Figure 7 This is a schematic diagram of the cross-sectional structure of a seed screening and impurity removal device before seed cultivation in the utility model. Figure 2 .

[0026] As shown in the figure: 1. Box body; 2. Feed hopper; 3. Box door; 4. Screen box; 5. Square pipe; 6. Narrow channel; 7. Guide rod; 8. Linear bearing; 9. Mounting plate; 10. Motor; 11. Disc; 12. Connecting rod; 13. Roller; 14. Belt; 15. Brush; 16. Motor 2; 17. Vacuum cleaner; 18. Filter; 19. Self-locking universal wheel. DETAILED DESCRIPTION

[0027] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "inside", "outside", "center", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction structure and operation. Therefore, they cannot be understood as limitations on the present invention.

[0028] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "provided with," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0029] The present invention will be described in further detail below with reference to the accompanying drawings.

[0030] Combined with attachment Figure 1 To the attached Figure 7 , a device for screening and removing impurities before seed cultivation, comprising a box body 1, self-locking universal wheels 19 are fixed at the four corners of the bottom of the box body 1, a feed hopper 2 is fixed at the upper end of the box body 1, a box door 3 is hingedly provided on the front of the box body 1, a screen box 4 is movably inserted between the left and right side walls inside the box body 1, a driving component for driving the screen box 4 to move horizontally back and forth is fixed on the outer wall of the box body 1, a square pipe 5 connected to the feed hopper 2 is fixed on the top surface of the box body 1, and a narrow channel 6 for seeds to pass slowly is formed inside the square pipe 5. A cleaning component for cleaning impurities and dust on the surface of the seeds is fixed on one side of the square pipe 5, and a dust removal mechanism is connected on the other side of the square pipe 5.

[0031] In this embodiment, as a preferred technical solution, guide rods 7 are fixed at both ends of the left and right ends of the screen box 4, and linear bearings 8 are fixed on the side walls of the box body 1. The guide rods 7 pass through the linear bearings 8 and are slidably connected to the linear bearings 8. The driving assembly includes a mounting plate 9 fixed to the outer wall of the box body 1, a motor 10 is fixed to the rear side of the mounting plate 9, a disc 11 is fixed on the driving shaft of the motor 10, and a connecting rod 12 is hinged at the end of the guide rod 7. The other end of the connecting rod 12 is rotatably arranged on the side of the disc 11 near the edge.

[0032] In this embodiment, as a preferred technical solution, the cleaning component includes two rollers 13 rotatably arranged on the side of the square pipe 5, a belt 14 is connected between the rollers 13, a plurality of evenly distributed bristles 15 are fixed on the surface of the belt 14, and a motor 16 for driving one of the rollers 13 to rotate is fixed on the outside of the square pipe 5. The movement direction of the side of the belt 14 located inside the square pipe 5 is opposite to the falling direction of the seeds.

[0033] In this embodiment, as a preferred technical solution, the dust removal mechanism includes a vacuum cleaner 17 fixed to the rear side of the box body 1, and the dust suction port of the vacuum cleaner 17 is connected to the interior of the square pipe 5 through a pipe. The inner wall of the square pipe 5 is provided with a filter 18 for preventing seeds from entering the pipe.

[0034] The working principle of the seed screening and impurity removal device before seed cultivation of the utility model is as follows: the screen box 4 realizes horizontal reciprocating motion through the driving assembly. After the seeds enter the square pipe 5 from the feed hopper 2, they fall onto the screen box 4. Under the reciprocating motion of the screen box 4, seeds and impurities of different sizes are separated according to the size of the sieve holes of the screen box 4. Seeds that meet the requirements remain on the screen box 4, and larger or smaller impurities fall through the sieve holes. The motor 2 16 in the cleaning assembly drives one of the rollers 13 to rotate. The rollers 13 are connected by a belt 14, which makes the belt 14 move. The bristles 15 on the surface of the belt 14 move with the belt. When the seeds fall from the square pipe 5, the bristles 15 contact the surface of the seeds. Since the belt 14 is located on one side inside the square pipe 5, its movement direction is opposite to the falling direction of the seeds. This relative movement can better remove impurities and dust attached to the surface of the seeds. The vacuum cleaner 17 in the dust removal mechanism is working. In the process of cleaning impurities and dust on the surface of the seeds, the generated dust is sucked away by the suction force generated by the vacuum cleaner 17. The filter 18 on the inner wall of the square pipe 5 prevents seeds from entering the pipe of the vacuum cleaner, ensuring that the seeds will not be accidentally sucked in during the dust removal process. At the same time, effective dust removal is achieved, and a clean environment inside the device is maintained.

[0035] The working steps of the seed screening and impurity removal device before seed cultivation are as follows:

[0036] 1. Preparation: Move the device to a suitable working position using the self-locking universal wheels 19 at the four corners of the bottom of the box 1, and lock the universal wheels to ensure the stability of the device.

[0037] 2. Feeding operation: Pour the seeds that need to be screened and removed into the feed hopper 2, and the seeds enter the connected square pipe 5 through the feed hopper 2. In the square pipe 5, the seeds begin to slowly pass through the narrow channel 6, preparing for subsequent cleaning and screening.

[0038] 3. Cleaning and Screening: Start motor 2 16, which drives roller 13 to rotate, moving bristles 15 on belt 14. As seeds fall through square pipe 5, bristles 15 clean impurities and dust from the seed surface. Start motor 10, which drives disc 11 to rotate. This, through connecting rod 12, drives guide rod 7 of screen box 4 to perform horizontal reciprocating motion within linear bearing 8, causing screen box 4 to begin reciprocating motion. After the seeds fall onto screen box 4, the movement of screen box 4 separates seeds of different sizes from impurities. Seeds that meet the mesh size requirements of screen box 4 remain on screen box 4, while impurities fall through the mesh.

[0039] 4. Dust Removal: During the cleaning process, vacuum cleaner 17 remains in operation. It removes dust generated by seed cleaning within square pipe 5 through a pipe, preventing dust accumulation and reattachment to the seeds. Filter 18 effectively prevents seeds from entering the vacuum cleaner pipe, ensuring smooth dust removal and equipment safety.

[0040] 5. Discharging and subsequent processing: After the screening and impurity removal work is completed, the box door 3 hinged on the front of the box body 1 is opened, and the qualified seeds remaining on the screen box 4 are taken out for subsequent seed cultivation or other processing. The broken seeds and impurities that fall through the sieve holes are cleaned up for next use.

[0041] The above description of the present invention and its embodiments is non-limiting. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by the above, and does not deviate from the purpose of the present invention, without inventive design, a structure and embodiment similar to the technical solution should fall within the scope of protection of the present invention.

Claims

1. A seed pre-cultivation screening and impurity removal device, comprising a box body (1), a feed hopper (2) fixedly provided at the upper end of the box body (1), and a box door (3) hingedly provided on the front of the box body (1), characterized in that: A screen box (4) is movably connected between the left and right side walls of the box body (1), and a driving assembly for driving the screen box (4) to move horizontally back and forth is fixedly provided on the outer side wall of the box body (1). A square pipe (5) connected to the feed hopper (2) is fixedly provided on the top surface of the box body (1). A narrow passage (6) for seeds to pass slowly is formed inside the square pipe (5). A cleaning assembly for cleaning impurities and dust on the surface of the seeds is fixedly provided on one side of the square pipe (5), and a dust removal mechanism is provided on the other side of the square pipe (5).

2. The device for screening and removing impurities before seed cultivation according to claim 1, characterized in that: Guide rods (7) are fixedly provided at both left and right ends of the screen box (4), and a linear bearing (8) is fixedly provided on the side wall of the box body (1). The guide rods (7) pass through the linear bearing (8) and are slidably connected to the linear bearing (8).

3. The device for screening and removing impurities before seed cultivation according to claim 2, characterized in that: The driving assembly comprises a mounting plate (9) fixedly arranged on the outer side wall of the box body (1); a motor (10) is fixedly arranged on the rear side of the mounting plate (9); a disc (11) is fixedly arranged on the driving shaft of the motor (10); a connecting rod (12) is hingedly arranged at the end of the guide rod (7); and the other end of the connecting rod (12) is rotatably arranged at a position near the edge of the side of the disc (11).

4. The device for screening and removing impurities before seed cultivation according to claim 1, characterized in that: The cleaning assembly comprises two rollers (13) rotatably arranged on the side of a square pipe (5), a belt (14) is connected between the rollers (13), a plurality of evenly distributed bristles (15) are fixed on the surface of the belt (14), and a second motor (16) for driving one of the rollers (13) to rotate is fixed on the outside of the square pipe (5).

5. The device for screening and removing impurities before seed cultivation according to claim 1, characterized in that: The dust removal mechanism comprises a dust collector (17) fixedly arranged on the rear side of the box body (1), and a dust suction port of the dust collector (17) is connected to the interior of the square pipe (5) through a pipe.

6. The device for screening and removing impurities before seed cultivation according to claim 5, characterized in that: The inner wall of the square pipe (5) is provided with a filter (18) for preventing seeds from entering the pipe.

7. The device for screening and removing impurities before seed cultivation according to claim 1, characterized in that: Self-locking universal wheels (19) are fixedly provided at the four corners of the bottom of the box (1).

8. The device for screening and removing impurities before seed cultivation according to claim 4, characterized in that: The movement direction of one side of the belt (14) located inside the square pipe (5) is opposite to the falling direction of the seeds.

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