A seed screening device for agricultural planting

Abstract

This utility model relates to the field of agricultural planting technology, and in particular to a seed screening device for agricultural planting. The seed screening device includes: a box, a rotating rod, a drive assembly, and an inclined conveyor belt. A feed pipe is fixedly connected to the top left side of the box, and a hopper is fixedly connected to the top of the feed pipe. A discharge inclined plate is fixedly connected to the bottom of the inner wall of the box. A seed discharge hole is opened on the front side of the box. A vibrating motor is fixedly connected to the side of the discharge inclined plate away from the seed sliding. A rotating rod is rotatably connected to the top center of the inner wall of the box, and a sieve plate is fixedly connected to the outside of the rotating rod. A transmission rod is rotatably connected to the inner wall of the box below the sieve plate, and multiple cams are fixedly connected to the outside of the transmission rod. An agitator column is rotatably connected to the inner wall of the feed pipe. This utility model effectively avoids seed accumulation and blockage in the feed pipe, eliminating the need for frequent shutdowns for cleaning, ensuring continuous operation of the screening process, and improving work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of agricultural planting technology, and in particular to a seed screening device for agricultural planting. Background Technology

[0002] Agricultural seeds are living reproductive organisms used for crop planting and propagation, including grains, fruits, roots, and stems. Their quality directly affects the germination rate, growth status, and final yield of crops. During harvesting and storage, seeds are easily contaminated with impurities (such as soil and weed seeds), broken seeds, and shriveled seeds. These reduce seed purity and germination potential. Therefore, screening devices are needed to separate and purify the seeds, retaining high-quality seeds to provide a reliable guarantee for subsequent planting. This is a crucial step in improving planting efficiency and crop quality in agricultural production.

[0003] Most seed screening devices typically require seeds to be fed through a funnel and feed pipe onto a sieve plate for screening. However, during the feeding process, seeds may clump together due to insufficient drying after harvesting, or because some vegetable seeds contain mucus, soil, or weeds. This bridging at the feed pipe can block the pipe, preventing subsequent seeds from reaching the sieve plate and causing the screening process to stall. The machine must be stopped for cleaning before it can be restored, severely impacting work efficiency.

[0004] Therefore, it is necessary to provide a new seed screening device for agricultural planting to solve the above-mentioned technical problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a seed screening device for agricultural planting.

[0006] This utility model provides a seed screening device for agricultural planting, comprising: a box, a rotating rod, a drive assembly, and an inclined conveyor belt. A feed pipe is fixedly connected to the top left side of the box, and a hopper is fixedly connected to the top of the feed pipe. A discharge ramp is fixedly connected to the bottom of the inner wall of the box. A seed discharge hole is opened on the front side of the box. A vibration motor is fixedly connected to the side of the discharge ramp away from the seed slippage. A rotating rod is rotatably connected to the top center of the inner wall of the box, and a sieve plate is fixedly connected to the outside of the rotating rod. A transmission rod is rotatably connected to the inner wall of the box below the sieve plate, and multiple cams are fixedly connected to the outside of the transmission rod. A stirring column is rotatably connected to the inner wall of the feed pipe, and multiple grooves are opened on the outside of the stirring column. A drive assembly is installed on the rear side of the feed pipe. An inclined conveyor belt is installed on the right inner wall of the box. A suction pipe is installed at the top end of the inclined conveyor belt on the top inner wall of the box, and a connecting pipe is fixedly connected to the top of the suction pipe. A waste discharge pipe is fixedly connected to the bottom right inner wall of the box at a position corresponding to the suction pipe.

[0007] Preferably, the drive assembly includes a motor, which is installed at the angle between the top of the box and the rear end of the feed pipe. A transmission rod is fixedly connected to the drive end of the motor, and a drive wheel is fixedly connected to the end of the transmission rod away from the motor. A driven wheel is rotatably connected to the front side of the box, and pulleys are sleeved on the outside of the drive wheel and the driven wheel.

[0008] Preferably, the outer side of the sieve plate is slidably connected to the top of the left inner wall of the box.

[0009] Preferably, the bottom end of the sieve plate is in contact with the outside of the cam.

[0010] Preferably, the outer side of the transfer rod is fixedly connected to the inner wall of the groove, and the outer end of the transfer rod is rotatably connected to the inner wall of the feed pipe.

[0011] Preferably, the driven wheel is fixedly connected to the front end of the transmission rod at the shaft center on the side closest to the housing.

[0012] Preferably, the end of the inclined conveyor belt with a lower inclination angle is located below the end of the sieve plate with a lower inclination angle, so that the seed screening debris falls onto the inclined conveyor belt.

[0013] Compared with related technologies, the seed screening device for agricultural planting provided by this utility model has the following beneficial effects:

[0014] Enhanced anti-clogging capability: This invention uses a drive component to rotate the stirring column inside the feed pipe. Its external grooves can move and disperse the clumps of seeds, effectively preventing seeds from accumulating and clogging inside the feed pipe. This eliminates the need for frequent shutdowns for cleaning, ensuring continuous operation of the screening process and improving work efficiency.

[0015] Optimized screening effect: The drive component of this utility model is linked with the rotating rod and transmission rod, so that the screen plate is vibrated by the cam being pushed and lowered, and can also swing at a certain angle with the help of the rotating rod. The combination of the two actions makes the screen plate vibrate more fully, and the seeds are screened more thoroughly on the screen plate, improving the separation accuracy of qualified seeds from impurities and unqualified seeds.

[0016] More comprehensive impurity separation: This utility model is equipped with an inclined conveyor belt to transport impurities on the surface of the sieve plate, and a suction tube is used to draw in light impurities under negative pressure. Light and heavy impurities are classified, collected and discharged, reducing impurity residue and further improving seed purity. Moreover, the impurity processing flow is continuous and does not interfere with the screening and collection of qualified seeds. Attached Figure Description

[0017] Figure 1 A schematic diagram of the structure of a seed screening device for agricultural planting provided by this utility model;

[0018] Figure 2 for Figure 1 The diagram shows the structure of the transmission assembly.

[0019] Figure 3 for Figure 1 The diagram shows the structure of the box.

[0020] Figure 4 for Figure 1 The diagram shows the structure of the feed sloping plate.

[0021] Figure 5 for Figure 4 Enlarged view of point A in the image.

[0022] The following are the labels in the diagram: 1. Box body; 2. Feed pipe; 3. Hopper; 4. Feeding inclined plate; 5. Seed discharge hole; 6. Vibrating motor; 7. Rotating rod; 8. Screen plate; 9. Transmission rod; 10. Cam; 11. Stirring column; 12. Groove; 13. Motor; 14. Transmission rod; 15. Driving wheel; 16. Driven wheel; 17. Pulley; 18. Inclined conveyor belt; 19. Suction pipe; 20. Connecting pipe; 21. Waste material discharge pipe. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0024] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0025] Please see Figures 1 to 5 A seed screening device for agricultural planting includes: a box body 1, which serves as the basic load-bearing structure of the entire device. A feed pipe 2 is fixedly connected to the top left side of the box body 1. The feed pipe 2 is tubular in shape to accommodate seed transport. A hopper 3 is fixedly connected to the top of the hopper 2. The hopper 3 has a wide mouth and a funnel shape, which facilitates the operator to quickly pour the seeds to be screened into the hopper and effectively guides the seeds to flow into the feed pipe 2. A discharge ramp 4 is fixedly connected to the bottom of the inner wall of the box body 1. The ramp is designed with an inclination angle based on the seed flow characteristics to help qualified seeds slide down smoothly. A seed discharge hole 5 is specially opened on the front side of the box body 1 to serve as a channel for qualified seeds to be discharged, ensuring that the seeds are discharged in an orderly manner. A vibration motor 6 is fixedly connected to the side of the discharge ramp 4 away from the seed slide. The vibration motor 6 can generate continuous and stable vibration to provide power for the seed transport on the discharge ramp 4.

[0026] The rotating rod 7 is installed at the top center of the inner wall of the box 1 via a rotating connection structure, allowing it to rotate flexibly. A sieve plate 8 is fixedly connected to the outside of the rotating rod 7. The outside of the sieve plate 8 is slidably connected to the top of the left inner wall of the box 1, which not only limits the excessive shaking of the sieve plate 8 but also provides space for its vibration and oscillation. A transmission rod 9 is rotatably connected to the inner wall of the box 1 below the sieve plate 8. Multiple cams 10 are fixedly connected to the outside of the transmission rod 9. The cams 10 can periodically lift and lower the sieve plate 8. The bottom end of the sieve plate 8 is in contact with the outside of the cams 10, ensuring that the cams 10 can effectively transmit power to the sieve plate 8 when rotating. An agitating column 11 is rotatably connected to the inner wall of the feed pipe 2. Multiple grooves 12 are opened on the outside of the agitating column 11, which can disperse and guide the seeds in the feed pipe 2.

[0027] The drive assembly is installed on the rear side of the feed pipe 2. The motor 13 is installed at the angle between the top of the box 1 and the rear end of the feed pipe 2. This position facilitates the power output of the motor 13. The drive end of the motor 13 is fixedly connected to the transmission rod 14. The outer side of the transmission rod 14 is fixedly connected to the inner wall of the groove 12, realizing the transmission of power from the motor 13 to the stirring column 11. The outer end of the transmission rod 14 is rotatably connected to the inner wall of the feed pipe 2, ensuring smooth rotation and preventing seed leakage. The end of the transmission rod 14 away from the motor 13 is fixedly connected to the drive wheel 15. The driven wheel 16 is rotatably connected to the front side of the box 1. The shaft of the driven wheel 16 near the box 1 is fixedly connected to the front end of the transmission rod 9, which can transmit power to the transmission rod 9. The drive wheel 15 and the driven wheel 16 are fitted with pulleys 17 to ensure stable power transmission between the drive wheel 15 and the driven wheel 16.

[0028] The inclined conveyor belt 18 is installed on the inner right side of the housing 1 via a mounting bracket. The end of the inclined conveyor belt 18 with a lower inclination angle is located below the end of the sieve plate 8 with a lower inclination angle, so that the seed screening impurities can accurately fall onto the inclined conveyor belt 18 under their own weight and the vibration of the sieve plate 8. A suction pipe 19 is fixedly connected to the inner top of the housing 1 at the end of the inclined conveyor belt 18 with the highest inclination angle. The opening of the suction pipe 19 faces the area above the inclined conveyor belt 18, which can effectively adsorb light impurities. A connecting pipe 20 is fixedly connected to the top of the suction pipe 19. The connecting pipe 20 is used to connect to an external negative pressure device. A material discharge pipe 21 is fixedly connected to the inner right side of the bottom of the housing 1 at the position corresponding to the suction pipe 19, which is used to discharge heavier impurities.

[0029] The working principle of the seed screening device for agricultural planting provided by this utility model is as follows:

[0030] At the start of the operation, the operator pours the seeds to be screened into hopper 3. The seeds slide down into feed pipe 2 under their own weight. At this time, the drive assembly starts, causing motor 13 to drive the agitator 11 to rotate inside feed pipe 2. Multiple grooves 12 on the outside of the agitator 11 rotate with it, continuously agitating and dispersing the seeds inside feed pipe 2, allowing them to flow more smoothly downwards and preventing accumulation and blockage. The seeds processed by the agitator 11 are discharged from the bottom of feed pipe 2 and fall onto sieve plate 8. Simultaneously, the power from the drive assembly is transmitted through transfer rod 14 to drive wheel 15, and then... The rotation of the drive wheel 15 causes the pulley 17 to drive the driven wheel 16 to rotate. Then, the rotation of the driven wheel 16 causes the transmission rod 9 to drive multiple cams 10 to continuously lift and lower the bottom of the sieve plate 8. Then, in conjunction with the rotating rod 7, the sieve plate 8 swings at a certain angle inside the box 1, causing the sieve plate 8 to vibrate continuously. During the vibration, seeds that meet the size of the sieve holes of the sieve plate 8 are affected by gravity and vibration, pass through the sieve holes and fall into the space below. Larger impurities or unqualified seeds remain on the surface of the sieve plate 8 and move towards the end with a lower tilt angle as the sieve plate 8 vibrates, preparing to enter the next stage.

[0031] Impurities or substandard seeds remaining on the surface of the sieve plate 8 slide to the end of the sieve plate 8 with a lower inclination angle and fall onto the inclined conveyor belt 18. The inclined conveyor belt 18 operates continuously during the operation of the device, conveying these impurities or substandard seeds to the end with a higher inclination angle. During this period, the suction pipe 19 uses the suction force generated by the external negative pressure device to suck up the area above and around the inclined conveyor belt 18. Some light impurities will be sucked in by the suction pipe 19 and conveyed to the designated collection position through the connecting pipe 20, while heavier impurities or substandard seeds will continue to move with the inclined conveyor belt 18 and eventually be discharged from the box 1 through the waste discharge pipe 21, thus achieving separation from qualified seeds.

[0032] The qualified seeds that pass through the sieve holes of the sieve plate 8 fall onto the feeding inclined plate 4 at the bottom of the inner wall of the box 1. The vibration motor 6 fixedly connected to one side of the feeding inclined plate 4 is started, which drives the feeding inclined plate 4 to vibrate, causing the qualified seeds that fall on it to slide towards the seed discharge hole 5. Finally, the qualified seeds are discharged from the box 1 through the seed discharge hole 5, completing the entire screening process.

[0033] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A seed screening device for agricultural planting, characterized by, include: Box (1), with a feed pipe (2) fixedly connected to the top left of the box (1), a hopper (3) fixedly connected to the top of the feed pipe (2), a feeding sloping plate (4) fixedly connected to the bottom of the inner wall of the box (1), a seed discharge hole (5) opened on the front side of the box (1), and a vibration motor (6) fixedly connected to the side of the feeding sloping plate (4) away from the seed sliding. Rotating rod (7), rotating rod (7) is rotatably connected to the top center of the inner wall of the box (1), sieve plate (8) is fixedly connected to the outside of rotating rod (7), transmission rod (9) is rotatably connected to the inner wall of the box (1) below sieve plate (8), multiple cams (10) are fixedly connected to the outside of transmission rod (9), stirring column (11) is rotatably connected to the inner wall of feed pipe (2), and multiple grooves (12) are opened on the outside of stirring column (11); The drive assembly is installed on the rear side of the feed pipe (2); An inclined conveyor belt (18) is installed on the inner right side of the box (1). A suction pipe (19) is installed at the top end of the inner wall of the box (1) at the top of the inclined conveyor belt (18). A connecting pipe (20) is fixedly connected to the top of the suction pipe (19). A waste material discharge pipe (21) is fixedly connected to the inner right side of the bottom of the box (1) at the position corresponding to the suction pipe (19).

2. The seed screening device for agricultural planting according to claim 1, characterized in that, The drive assembly includes a motor (13), which is installed at the angle between the top of the housing (1) and the rear end of the feed pipe (2). A transmission rod (14) is fixedly connected to the drive end of the motor (13). A drive wheel (15) is fixedly connected to the end of the transmission rod (14) away from the motor (13). A driven wheel (16) is rotatably connected to the front side of the housing (1). A pulley (17) is sleeved on the outside of the drive wheel (15) and the driven wheel (16).

3. The seed screening device for agricultural planting according to claim 1, wherein The outside of the sieve plate (8) is slidably connected to the top of the left inner wall of the box (1).

4. The seed screening device for agricultural planting according to claim 1, wherein The bottom end of the sieve plate (8) is in contact with the outside of the cam (10).

5. The seed screening device for agricultural planting according to claim 2, wherein The outer side of the transfer rod (14) is fixedly connected to the inner wall of the groove (12), and the outer end of the transfer rod (14) is rotatably connected to the inner wall of the feed pipe (2).

6. The seed screening device for agricultural planting according to claim 2, wherein The driven wheel (16) is fixedly connected to the front end of the transmission rod (9) at the center of the shaft on the side near the housing (1).

7. The seed screening device for agricultural planting of claim 1, wherein The inclined conveyor belt (18) with a low inclination angle is located below the sieve plate (8) with a low inclination angle, causing seed screening debris to fall onto the inclined conveyor belt (18).

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