A pneumatic roller-type rice seedling raising and sowing device

Abstract

This application discloses a pneumatic suction roller-type rice seedling raising and sowing device, belonging to the field of rice seedling raising and sowing technology. The pneumatic suction roller-type rice seedling raising and sowing device includes a storage box, inside which a rotating cylinder is rotatably connected. Multiple partition blocks are fixedly connected to the upper part of the storage box, and the lower end faces of the partition blocks are in contact with the outer wall of the rotating cylinder. Multiple through-holes are opened on the outer wall of the rotating cylinder, and a grid plate is fixedly connected inside each suction hole. A feed trough is opened above each suction hole. A guide plate guides seeds to gather towards the rotating cylinder, and the gap between the guide plate and the rotating cylinder and the lower part of the storage box provides space for seed flow, ensuring that the seeds fully contact the rotating cylinder. A slow-speed motor drives the rotating cylinder to rotate, and an air pump creates negative pressure inside the rotating cylinder through a suction pipe. Seeds are adsorbed onto the grid plate of the suction holes through the feed trough. The grid plate both prevents seeds from entering the rotating cylinder and allows airflow.

Description

Technical Field

[0001] This application relates to the field of rice seedling raising and sowing technology, and more specifically, to a pneumatic roller-type rice seedling raising and sowing device. Background Technology

[0002] The air-suction roller-type rice seedling raising and sowing device is a precision sowing equipment specifically designed for rice seedling raising. It uses the principle of air suction to adsorb rice seeds and then evenly sows the seeds into the seedling holes of the seedling tray by rotating the roller. It is suitable for the large-scale and standardized production needs of rice seedling raising. The parameters can be adjusted according to the size of the seedling tray and the sowing density to reduce missed sowing and double sowing, improve sowing uniformity and efficiency, and reduce the labor intensity of manual sowing. It provides a guarantee for uniform emergence and cultivation of strong seedlings in the rice seedling raising stage and is suitable for various seedling raising scenarios such as seedling raising factories and agricultural cooperatives.

[0003] In actual operation, during the sowing process, the seeds of the air-suction roller-type rice seedling raising and sowing device are difficult to contact the rotating drum fully and stably. When the negative pressure adsorbs the seeds, the adsorption is unstable or multiple seeds are piled up. After the seeds are detached from the adsorption, they are easy to fall off, resulting in insufficient sowing accuracy and causing inconvenience to improving the efficiency of sowing work. Utility Model Content

[0004] The purpose of this application is to provide a pneumatic roller-type rice seedling raising and sowing device, which solves the technical problems mentioned in the background art.

[0005] This application provides a pneumatic suction roller-type rice seedling raising and sowing device, including a storage box. A rotating cylinder is rotatably connected inside the storage box. Multiple partition blocks are fixedly connected to the upper part of the storage box, and the lower end face of the partition blocks is in contact with the outer wall of the rotating cylinder. Multiple through suction holes are opened on the outer wall of the rotating cylinder. A grid plate is fixedly connected inside the suction holes. A feeding trough is opened above the suction holes and is located between two partition blocks. Multiple discharge frames are fixedly connected to the lower part of the outer wall of the storage box, and the upper end of the discharge frame extends into the storage box and corresponds to the suction hole. The upper end face of the discharge frame is an inclined surface, and one side of the upper end face of the discharge frame is in contact with the outer wall of the rotating cylinder.

[0006] Optionally, an air pump is fixedly connected to the front end of the storage box, an air outlet pipe is fixedly inserted into the front end of the air pump, a fixing plate is fixedly connected to the lower part of both the front and rear ends of the storage box, and an air suction pipe is fixedly inserted into the rear end of the air pump.

[0007] Optionally, a bearing ring is fixedly inserted into the front end of the rotating cylinder, and one end of the suction pipe extends sequentially into the storage box and the bearing ring, and is fixedly connected to the inner ring of the bearing ring.

[0008] Optionally, a guide plate is fixedly connected to one side of the inside of the storage box, and the guide plate and the rotating cylinder are spaced apart, with the lower end of the guide plate spaced apart from the lower part of the inside of the storage box.

[0009] Optionally, a sealing strip is fixedly connected to the lower part of the inside of the storage box, and the upper end face of the sealing strip is in contact with the outer wall of the rotating cylinder.

[0010] Optionally, the rotating cylinder has multiple air guide blocks fixedly connected inside, and the suction hole is located between two air guide blocks.

[0011] Optionally, a slow-speed motor is fixedly connected to the rear end face of the storage box, and the output end of the slow-speed motor extends into the storage box and is fixedly connected to the rotating cylinder.

[0012] One or more technical solutions provided in this application have at least the following technical effects or advantages:

[0013] This application utilizes a guide plate to guide seeds towards the rotating drum. The gap between the guide plate and the bottom of the rotating drum and storage bin provides space for seed flow, ensuring full contact between the seeds and the rotating drum. A slow-speed motor drives the rotating drum, and an air pump creates negative pressure inside the rotating drum through a suction pipe. Seeds are adsorbed onto the grid plate of the suction hole through the feeding trough. The grid plate both prevents seeds from entering the rotating drum and allows airflow. The air guide block rotates with the rotating drum to guide airflow, enhancing the stability of the negative pressure adsorption and ensuring that each suction hole effectively adsorbs seeds. The separator block blocks seeds outside the feeding trough, ensuring that only one seed is in the trough, thus improving sowing accuracy.

[0014] When the suction hole rotates to the discharge frame position, the inclined side of the discharge frame fits against the rotating cylinder to block the seeds, causing the seeds to detach from the suction hole and fall into the discharge frame, preventing spillage and greatly improving the accuracy of sowing and work efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the air-suction drum-type rice seedling raising and sowing device disclosed in the embodiments of this application;

[0016] Figure 2 This is an exploded view of the structure of the air-suction drum-type rice seedling raising and sowing device disclosed in the embodiments of this application;

[0017] Figure 3 This is a cross-sectional view of the air-suction drum-type rice seedling raising and sowing device disclosed in the embodiments of this application;

[0018] Figure 4 This is a partial structural schematic diagram of the air-suction roller-type rice seedling raising and sowing device disclosed in the embodiments of this application.

[0019] The following are the labels in the diagram: 1. Storage bin; 2. Slow-speed motor; 3. Air pump; 4. Air outlet pipe; 5. Fixing plate; 6. Discharge frame; 7. Suction pipe; 8. Bearing ring; 9. Guide plate; 10. Sealing strip; 11. Divider block; 12. Rotating cylinder; 13. Suction hole; 14. Mesh plate; 15. Feed chute; 16. Air guide block. Detailed Implementation

[0020] The present application will be further described in detail below with reference to the accompanying drawings.

[0021] Reference Figures 1-4 This application provides a pneumatic roller-type rice seedling raising and sowing device, including a storage box 1. A rotating cylinder 12 is rotatably connected inside the storage box 1. Multiple partition blocks 11 are fixedly connected to the upper part of the storage box 1, and the lower end face of the partition block 11 is in contact with the outer wall of the rotating cylinder 12. A guide plate 9 is fixedly connected to one side of the storage box 1, and the guide plate 9 and the rotating cylinder 12 are spaced apart. The lower end of the guide plate 9 is spaced apart from the lower part of the storage box 1. A sealing strip 10 is fixedly connected to the lower part of the storage box 1, and the upper end face of the sealing strip 10 is in contact with the outer wall of the rotating cylinder 12. The guide plate 9 can guide the seeds to gather towards the rotating cylinder 12. The gap between the guide plate 9 and the rotating cylinder 12 and the lower part of the storage box 1 provides space for seed flow, ensuring that the seeds fully contact the rotating cylinder 12. Under the separation of the sealing strip 10, the seeds are located on one side of the guide plate 9 inside the storage box 1.

[0022] A slow-speed motor 2 is fixedly connected to the rear end of the storage bin 1, and the output end of the slow-speed motor 2 extends into the storage bin 1 and is fixedly connected to the rotating cylinder 12. Multiple through suction holes 13 are provided on the outer wall of the rotating cylinder 12. A mesh plate 14 is fixedly connected inside the suction holes 13. A feed chute 15 is provided above the suction holes 13 and is located between two partition blocks 11. An air suction pump 3 is fixedly connected to the front end of the storage bin 1, and an air outlet pipe 4 is fixedly inserted into the front end of the air suction pump 3. The lower parts of both the front and rear ends of the storage bin 1 are fixedly connected... A fixed plate 5 is fixedly connected to the rear end of the air pump 3, and a suction pipe 7 is fixedly inserted into the front end of the rotating cylinder 12. One end of the suction pipe 7 extends into the storage box 1 and the bearing ring 8 in sequence, and is fixedly connected to the inner ring of the bearing ring 8. The slow motor 2 drives the rotating cylinder 12 to rotate. The air pump 3 creates a negative pressure inside the rotating cylinder 12 through the suction pipe 7. The seeds are adsorbed onto the grid plate 14 of the suction hole 13 through the feed trough 15. The grid plate 14 can both prevent the seeds from entering the interior of the rotating cylinder 12 and ensure the airflow.

[0023] Multiple air guide blocks 16 are fixedly connected inside the rotating cylinder 12, and the suction hole 13 is located between two air guide blocks 16. The air guide blocks 16 can guide the airflow as the rotating cylinder 12 rotates, which can enhance the stability of negative pressure adsorption and ensure that each suction hole 13 can effectively adsorb seeds. The separator block 11 can block the seeds outside the feed trough 15, ensuring that there is only one seed in the trough and improving the sowing accuracy.

[0024] Multiple discharge frames 6 are fixedly connected to the lower part of the outer wall of the storage box 1, and the upper end of the discharge frame 6 extends into the storage box 1 and corresponds to the suction hole 13. The upper surface of the discharge frame 6 is inclined, and one side of the upper surface of the discharge frame 6 is in contact with the outer wall of the rotating cylinder 12. When the suction hole 13 rotates to the position of the discharge frame 6, the inclined side of the discharge frame 6 is in contact with the rotating cylinder 12 to block the seeds, so that the seeds leave the suction hole 13 and fall into the discharge frame 6, avoiding spillage, which greatly improves the accuracy of sowing and work efficiency.

[0025] Working principle: First, install the fixing plate 5 on the storage box 1 onto the impurities of the seedling tray. After installation, pour rice seeds into the storage box 1. Under the guidance of the guide plate 9 inside the storage box 1, the seeds gather towards the rotating cylinder 12. The gap between the guide plate 9 and the rotating cylinder 12, as well as the gap between the lower end of the guide plate 9 and the lower part of the storage box 1, provide space for seed flow, ensuring that the seeds can fully contact the rotating cylinder 12. Separated by the sealing strip 10, the seeds are located on one side of the guide plate 9 inside the storage box 1.

[0026] When starting the device, first turn on the slow motor 2 at the rear end of the storage box 1. The output end of the slow motor 2 drives the rotating cylinder 12 to rotate inside the storage box 1. At the same time, start the suction pump 3 at the front end of the storage box 1. The suction pump 3 draws air from inside the rotating cylinder 12 through the suction pipe 7 to create a negative pressure environment inside the rotating cylinder 12.

[0027] As the rotating cylinder 12 rotates, rice seeds in the storage bin 1 enter the vicinity of the suction hole 13 through the feeding groove 15 on the outer wall of the rotating cylinder 12. Due to the negative pressure inside the rotating cylinder 12, the seeds are adsorbed onto the grid plate 14 inside the suction hole 13. The grid plate 14 can prevent seeds from entering the interior of the rotating cylinder 12 while ensuring airflow. The air guide block 16 inside the rotating cylinder 12 rotates with the rotating cylinder 12, which guides the airflow drawn by the suction pump 3, making the airflow more evenly distributed inside the rotating cylinder 12, enhancing the stability of the negative pressure adsorption, and ensuring that each suction hole 13 can effectively adsorb seeds. The rotation of the rotating cylinder 12 causes the seeds on the outer wall to pass through the guide plate 9 and multiple partition blocks 11 in sequence. The feeding groove 15 is located between two partition blocks 11. The partition blocks 11 can block the seeds located outside the feeding groove 15, so that there is only one seed in the feeding groove 15.

[0028] When the suction hole 13 containing seeds rotates to the position of the discharge frame 6, the upper end of the discharge frame 6 extends into the storage box 1 and corresponds to the suction hole 13. As the rotating cylinder 12 continues to rotate, the inclined side of the upper end of the discharge frame 6 fits against the rotating cylinder 12 and blocks the seeds, causing the seeds to detach from the suction hole 13 and fall smoothly into the discharge frame 6, thus preventing the seeds from spilling.

[0029] Seeds are transported to target locations such as seedling trays via the discharge frame 6 to complete sowing. During sowing, the rotation speed of the rotating drum 12 is controlled by adjusting the speed of the slow motor 2, thereby adjusting the frequency of seed adsorption and descent to regulate the sowing amount. After the seeds in the storage bin 1 have been sown, the suction pump 3 is first turned off to stop the negative pressure adsorption inside the rotating drum 12, and then the slow motor 2 is turned off to stop the rotating drum 12 from rotating.

[0030] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. An air-suction drum type rice seedling raising and seeding device comprising a storage tank (1), characterized in that: The storage box (1) is rotatably connected to a rotating cylinder (12). Multiple partition blocks (11) are fixedly connected to the upper part of the storage box (1), and the lower end face of the partition block (11) is in contact with the outer wall of the rotating cylinder (12). Multiple through suction holes (13) are opened on the outer wall of the rotating cylinder (12). A grid plate (14) is fixedly connected inside the suction hole (13). A feed groove (15) is opened above the suction hole (13), and the feed groove (15) is located between two partition blocks (11). Multiple discharge frames (6) are fixedly connected to the lower part of the outer wall of the storage box (1), and the upper end of the discharge frame (6) extends into the storage box (1) and corresponds to the suction hole (13). The upper end face of the discharge frame (6) is an inclined surface, and one side of the upper end face of the discharge frame (6) is in contact with the outer wall of the rotating cylinder (12).

2. The air-suction drum type rice seedling raising and seeding apparatus according to claim 1, characterized in that: The front end of the storage box (1) is fixedly connected to an air pump (3), the front end of the air pump (3) is fixedly connected to an air outlet pipe (4), the front end and the rear end of the storage box (1) are both fixedly connected to a fixing plate (5), and the rear end of the air pump (3) is fixedly connected to an air suction pipe (7).

3. The air-suction drum type rice seedling raising and seeding apparatus according to claim 2, characterized in that: The front end of the rotating cylinder (12) is fixedly connected to a bearing ring (8), and one end of the suction pipe (7) extends into the storage box (1) and the bearing ring (8) in sequence, and is fixedly connected to the inner ring of the bearing ring (8).

4. The air-suction drum type rice seedling raising and seeding apparatus according to claim 1, characterized in that: A guide plate (9) is fixedly connected to one side of the inside of the storage box (1), and the guide plate (9) and the rotating cylinder (12) are distributed with a gap. The lower end of the guide plate (9) is distributed with a gap to the lower part of the inside of the storage box (1).

5. The air-suction drum type rice seedling raising and seeding apparatus according to claim 1, wherein: A sealing strip (10) is fixedly connected to the lower part of the storage box (1), and the upper end face of the sealing strip (10) is in contact with the outer wall of the rotating cylinder (12).

6. The air-suction drum type rice seedling raising and seeding apparatus according to claim 1, wherein: The rotating cylinder (12) has multiple air guide blocks (16) fixedly connected inside, and the suction hole (13) is located between two air guide blocks (16).

7. The air-suction drum-type rice seedling raising and sowing device according to claim 1, characterized in that: The rear end face of the storage box (1) is fixedly connected to a slow motor (2), and the output end of the slow motor (2) extends into the storage box (1) and is fixedly connected to the rotating cylinder (12).

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