A seedling coating and screening device

Abstract

This utility model relates to a seed-mixing and screening device for seedling cultivation, belonging to the field of agricultural auxiliary equipment technology. It includes a movable frame with a seed-mixing box mounted on it. The bottom of the seed-mixing box has two arc-shaped mixing troughs, and a seed-mixing auger is installed inside each trough. The outer bottom end of the seed-mixing box is hinged to the frame, and the inner bottom end of the seed-mixing box is hinged to a tilting electric cylinder. The lower end of the tilting electric cylinder is hinged to the frame. The inner end of the seed-mixing auger is connected to a drive mechanism. A discharge port is located on the seed-mixing box corresponding to the outer end of the seed-mixing auger, and a cover plate is installed on the outer side of the discharge port to seal it. A screening screen is fixed to the upper part of the seed-mixing box. This utility model features double-arc mixing troughs that conform to the shape of the seed-mixing auger, significantly reducing seed residue. The tilting electric cylinder automatically adjusts the tilt angle of the seed-mixing box, replacing manual pouring and reducing labor intensity. The screening screen is integrated into the upper part of the seed-mixing box, allowing seeds to be screened and mixed without transfer, avoiding transfer losses and achieving a streamlined workflow.

Description

Technical Field

[0001] This utility model relates to a seedling coating and screening device, belonging to the field of agricultural auxiliary equipment technology. Background Technology

[0002] In agricultural seedling production, seed pretreatment requires seed dressing with chemicals, which needs to be done by seed dressing equipment. Most of the current simple seed dressing equipment is a single-shaft mixing structure. The inner wall of the seed dressing tank and the mixing shaft have poor fit, which easily leads to seed residue and uneven seed dressing. In addition, there are some large particles of impurities in the seeds, which are currently sifted out manually by hand with a sieve. Manual operation is inefficient and difficult to meet the needs of large-scale seedling production. Utility Model Content

[0003] This invention provides a seedling coating and screening device to solve the problems existing in the background art.

[0004] This utility model relates to a seed-mixing and screening device for seedling cultivation, including a movable frame, a seed-mixing box on the frame, two arc-shaped seed-mixing troughs at the bottom of the seed-mixing box, a seed-mixing auger inside the seed-mixing troughs, the outer bottom end of the seed-mixing box hinged to the frame, a tilting electric cylinder hinged to the inner bottom end of the seed-mixing box, the lower end of the tilting electric cylinder hinged to the frame, a drive mechanism connected to the inner end of the seed-mixing auger, a discharge port on the seed-mixing box corresponding to the outer end of the seed-mixing auger, a cover plate for sealing the discharge port, and a screening screen fixed to the upper part of the seed-mixing box.

[0005] As a preferred embodiment, the seed mixing box above one end of the screening screen is equipped with a discharge port, and a collection box is provided on the outside of the discharge port. The collection box can directly collect impurities.

[0006] As a preferred embodiment, a support plate is provided at the bottom of the collection box, and a baffle plate is fixed to the inner wall of the seed mixing box above the discharge port. The upper inner side of the collection box has an inlet corresponding to the discharge port. The collection box is made of iron, and a magnet is provided on the outer wall of the seed mixing box to mate with the upper end of the collection box. The support plate helps support the weight of the collection box, preventing the magnet from falling off due to long-term stress and extending the structural lifespan. The baffle plate prevents seeds from directly entering the discharge port. The iron collection box, in conjunction with the magnet, allows for quick assembly and disassembly, eliminating the need for tools when cleaning impurities and making operation more convenient.

[0007] As a preferred embodiment, a discharge hopper is fixed to the seed mixing box outside the discharge port. The top of the discharge hopper has an insertion port for the cover plate to enter and exit. A lifting iron plate is fixed to the top of the cover plate. The upper and lower surfaces of the support plate have embedded grooves, and a magnet is fixed in the embedded groove. The discharge hopper can guide the seeds to fall directionally into the receiving part, avoiding seed spillage during discharge. The cover plate can be quickly opened and closed through the insertion port. With the attraction between the lifting iron plate and the magnet, the cover plate can be temporarily fixed after opening.

[0008] As a preferred option, a limiting plate is provided at the contact point between the top of the frame and the inner wall of the seed mixing box, which better limits the position of the seed mixing box.

[0009] As a preferred option, a pusher is fixed to the upper part of the frame.

[0010] As a preferred embodiment, the drive mechanism includes a drive motor connected to the inner end of one of the seed-mixing augers, and sprockets fixed on the shafts at the inner ends of both seed-mixing augers, with the two sprockets connected by a chain. A single drive motor, combined with sprocket and chain transmission, enables synchronous rotation of the two seed-mixing augers, saving more energy compared to a dual-motor drive. The synchronous rotation of the two augers reduces dead zones in the seed-mixing process, preventing incomplete mixing of seeds in certain areas and improving the uniformity of seed mixing.

[0011] As a preferred embodiment, an inoculation tray is located below the discharge hopper, and a support plate is provided at the bottom of the inoculation tray. The support plate is fixed to the frame, and a limiting plate is also fixed to the frame. The limiting plate has limiting holes for the bottom of the inoculation tray to extend into. The support plate provides stable support for the inoculation tray.

[0012] This utility model has the following beneficial effects: The double-arc seed mixing trough fits the shape of the seed mixing auger, which can significantly reduce seed residue; the tilting electric cylinder can automatically adjust the tilt angle of the seed mixing box, replacing manual pouring and reducing labor intensity; the screening screen is integrated into the upper part of the seed mixing box, so seeds can be screened and mixed without transfer, avoiding transfer losses and realizing a smooth workflow. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 for Figure 1 Partial structural diagram Figure 1 ; Figure 3 for Figure 1 Partial structural diagram Figure 2 ; Figure 4 This is a schematic diagram of the top part of the seed mixing box. In the diagram: 1. Screening mesh; 2. Limiting support plate; 3. Seed mixing auger; 4. Seed mixing box; 5. Sprocket; 6. Drive motor; 7. Pusher; 8. Tilting electric cylinder; 9. Frame; 10. Magnet II; 11. Support plate; 12. Support plate; 13. Limiting plate; 14. Inoculation tray; 15. Discharge hopper; 16. Cover plate; 17. Impurity collection box; 18. Material blocking inclined plate; 19. Lifting iron plate; 20. Magnet I. Detailed Implementation

[0014] The present invention will be further described below with reference to the embodiments.

[0015] Example 1, as Figures 1 to 4As shown, this utility model is a seed-mixing and screening device for seedling cultivation, including a movable frame 9, a seed-mixing box 4 on the frame 9, two arc-shaped seed-mixing troughs at the bottom of the seed-mixing box 4, a seed-mixing auger 3 inside the seed-mixing troughs, the outer bottom end of the seed-mixing box 4 hinged to the frame 9, a tilting electric cylinder 8 hinged to the inner bottom end of the seed-mixing box 4, the lower end of the tilting electric cylinder 8 hinged to the frame 9, a driving mechanism connected to the inner end of the seed-mixing auger 3, a discharge port on the seed-mixing box 4 corresponding to the outer end of the seed-mixing auger 3, a cover plate 16 for sealing the discharge port on the outer side, and a screening screen 1 fixed on the upper part of the seed-mixing box 4.

[0016] During operation, the seeds to be treated are evenly poured into the sieve 1 at the top of the seed mixing box 4. The seeds fall through the sieve 1 into the two seed mixing troughs below. Large particles of impurities are intercepted by the sieve 1. If seed mixing agent needs to be added, it can be evenly sprinkled on the sieve 1 and enter the seed mixing trough along with the seeds. The drive mechanism is started to drive the two seed mixing screws 3 to rotate synchronously and stir the seeds in the seed mixing trough. After the seed mixing is completed, the drive mechanism is turned off, the cover plate 16 is removed, and the tilting electric cylinder 8 is started to slowly extend its piston rod, driving the seed mixing box 4 to tilt upward around the bottom outer hinge point. The tilt angle is controlled at 15-30° to avoid the seed flow rate being too fast. The drive mechanism is briefly started and operated at low speed to assist the seeds in the seed mixing trough to move towards the discharge port. The seeds are discharged through the discharge port. After the material is received, the tilting electric cylinder 8 is turned off, and the seed mixing box 4 is reset to the initial state of high outside and low inside.

[0017] In Example 2, based on Example 1, a discharge port is provided on the seed mixing box 4 above one end of the sieve screen 1, and a collection box 17 is provided on the outside of the discharge port. After the seed mixing is completed, when the tilting electric cylinder 8 is activated to pour the seeds, the impurities on the sieve screen 1 will enter the collection box 17 from the discharge port.

[0018] A support plate 11 is provided below the impurity collection box 17. A baffle plate 18 is fixed on the inner wall of the seed mixing box 4 above the impurity discharge port. An impurity inlet corresponding to the impurity discharge port is provided on the upper inner side of the impurity collection box 17. The impurity collection box 17 is made of iron. A magnet 20 that matches the upper end of the impurity collection box 17 is provided on the outer wall of the seed mixing box 4. When cleaning the impurity collection box 17, it can be pulled out to pour out the impurities inside the impurity collection box 17 from the impurity inlet.

[0019] A discharge hopper 15 is fixed on the seed mixing box 4 outside the discharge port. The top of the discharge hopper 15 has an insertion port for the cover plate 16 to enter and exit. A lifting iron plate 19 is fixed on the top of the cover plate 16. The upper and lower surfaces of the support plate 11 are provided with embedded grooves, and a magnet 2 10 is fixed in the embedded grooves. Before mixing the seeds, the lifting iron plate 19 can be pressed down to close the discharge port of the cover plate 16. After mixing the seeds, the lifting iron plate 19 can be pulled up to attract the top of the lifting iron plate 19 to the magnet 2 10 at the bottom, and the cover plate 16 will release the seal on the discharge port.

[0020] A limiting plate 2 is provided at the contact point between the top of the frame 9 and the inner wall of the seed mixing box 4.

[0021] A push handle 7 is fixed to the upper part of the frame 9.

[0022] The drive mechanism includes a drive motor 6 connected to the inner end of one of the seed-mixing augers 3. A sprocket 5 is fixed to the shaft at the inner end of both seed-mixing augers 3, and the two sprockets 5 are connected by a chain. When the drive motor 6 rotates, it drives the two seed-mixing augers 3 to rotate synchronously through the sprockets and chain.

[0023] Below the discharge hopper 15 is an inoculation tray 14, and at the bottom of the inoculation tray 14 is a support plate 12, which is fixed to the frame 9. A limiting plate 13 is also fixed to the frame 9, and the limiting plate 13 has a limiting hole for the bottom of the inoculation tray 14 to extend into. Before pouring the seeds into the seed mixing box 4, the bottom of the inoculation tray 14 is supported on the support plate 12 through the limiting hole, so that it can contact the seeds falling from the discharge hopper 15.

[0024] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0025] In the description of this utility model, the terms "inner", "outer", "longitudinal", "transverse", "upper", "lower", "top", "bottom", 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 do not require that this utility model must be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

Claims

1. A seedling mixing and screening device, comprising a movable frame (9), wherein a mixing box (4) is provided on the frame (9), characterized in that: The bottom of the seed mixing box (4) is provided with two arc-shaped seed mixing troughs, and a seed mixing auger (3) is provided in the seed mixing trough. The bottom outer end of the seed mixing box (4) is hinged to the frame (9). The bottom inner end of the seed mixing box (4) is hinged to a tilting electric cylinder (8). The lower end of the tilting electric cylinder (8) is hinged to the frame (9). The inner end of the seed mixing auger (3) is connected to a driving mechanism. The seed mixing box (4) corresponding to the outer end of the seed mixing auger (3) is provided with a discharge port. The outer side of the discharge port is provided with a cover plate (16) to close it. A screening screen (1) is fixed on the upper part of the seed mixing box (4).

2. The seedling treatment and screening equipment according to claim 1, characterized in that: The seed mixing box (4) above one end of the screening mesh (1) is provided with a discharge port, and a collection box (17) is provided on the outside of the discharge port.

3. The seedling treatment and screening equipment according to claim 2, characterized in that: A support plate (11) is provided below the receiving box (17). A baffle plate (18) is fixed on the inner wall of the mixing box (4) above the discharge port. The upper inner side of the receiving box (17) is provided with a discharge port corresponding to the discharge port. The receiving box (17) is made of iron. A magnet (20) that matches the upper end of the receiving box (17) is provided on the outer wall of the mixing box (4).

4. The seedling treatment and screening equipment according to claim 2, characterized in that: A discharge hopper (15) is fixed on the seed mixing box (4) outside the discharge port. The top of the discharge hopper (15) is provided with an insertion port for the cover plate (16) to enter and exit. The top of the cover plate (16) is fixed with a lifting iron plate (19). The upper and lower surfaces of the support plate (11) are provided with embedded grooves, and a magnet (10) is fixed in the embedded groove.

5. The seedling treatment and screening equipment according to claim 1, characterized in that: A limiting plate (2) is provided at the contact point between the top of the frame (9) and the inner wall of the seed mixing box (4).

6. The seedling treatment and screening equipment according to claim 1, characterized in that: A pusher (7) is fixed to the upper part of the frame (9).

7. The seedling treatment and screening equipment according to claim 1, characterized in that: The drive mechanism includes a drive motor (6) connected to the inner end of one of the seed mixing augers (3), and sprockets (5) are fixed on the shafts at the inner ends of both seed mixing augers (3), and the two sprockets (5) are connected by a chain.

8. The seedling treatment and screening equipment according to claim 4, characterized in that: Below the discharge hopper (15) is an inoculation tray (14), and at the bottom of the inoculation tray (14) is a bracket plate (12). The bracket plate (12) is fixed on the frame (9), and a limit plate (13) is also fixed on the frame (9). The limit plate (13) has a limit hole for the bottom of the inoculation tray (14) to extend into.

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