Seedling raising line centralized soil supply system

Abstract

The utility model discloses a seedling raising line concentrated soil supply system which comprises a conveyor hopper, a transverse conveyor, a supporting frame, a cylinder screen and a longitudinal conveyor, an opening is formed in the upper portion of the conveyor hopper, a long-strip-shaped discharging opening is formed in the lower portion of the conveyor hopper, the conveyor hopper is fixedly installed on the upper portion of the supporting frame, and the transverse conveyor is arranged at the bottom of the conveyor hopper. A conveying belt of the horizontal conveyor corresponds to the position of a discharging port in an up-down mode, the feeding end of the horizontal conveyor is close to the bottom of the discharging port, the height position of the horizontal conveyor relative to the discharging port can be adjusted, and the discharging port end of the horizontal conveyor extends out of a conveyor hopper and is connected with the feeding port end of a cylinder screen. The feeding end of the longitudinal conveyor is located at the bottom of a screen mesh of the cylinder screen. The thickness of seedling raising soil output by the conveyor hopper is controlled by controlling the height position between the discharging end of the transverse conveyor and the discharging port, so that the drum screen is prevented from being blocked, the axis size of the soil feeding hopper penetrating into the drum screen is adjusted, and the vertical size of the drum screen and the soil feeding hopper is adjusted; and the screening efficiency of the drum screen is further improved.

Description

Technical Field

[0001] This utility model relates to agricultural planting machinery, and more specifically, to a centralized soil supply system for seedling raising lines. Background Technology

[0002] Rice cultivation methods mainly include two categories: direct seeding and transplanting. Direct seeding involves sowing seeds directly into the soil until the rice matures and is harvested, requiring only management during this period. Transplanting involves raising seedlings in a centralized location and then transplanting them manually or mechanically. Although direct seeding saves some steps compared to transplanting, it has disadvantages such as more weeds, uncontrollable planting density, longer land occupation time, and a higher risk of seedling loss. Therefore, transplanting technology is widely used. Transplanting requires raising seedlings first. During seedling raising, seedling soil is placed in seedling trays, and then the seeds are sown into the trays. To ensure seed germination and survival rates, the seedling soil must be well-aerated. Therefore, before raising seedlings, the soil needs to be crushed and sieved to ensure good aeration. Finer soil can also be directly sieved to form seedling soil without crushing. In addition, after the first crushing and sieving, the seedling soil may not be used in time or may not be used up. Long-term storage of seedling soil can cause soil clumping and may also mix in other foreign objects. Therefore, before use, these piled seedling soil need to be sieved a second time to remove lumps and foreign objects. Since most of the seedling soil after the second sieving is finer, too much seedling soil entering the sieving device during sieving can cause the sieving device to become clogged. Manually controlling the amount of seedling soil entering the sieving device will reduce sieving efficiency and increase labor intensity.

[0003] Chinese utility model patent document CN202122355908.2 discloses a seedling soil crushing device, which mainly includes a base frame, a conveying unit, and a screen unit. The screen unit is located above the conveying unit. The seedling soil is sieved through the screen unit, and the sieved seedling soil is conveyed through the conveying unit. Although this utility model can solve the problem of seedling soil permeability, it cannot control the amount of material entering the screen unit during the sieving process, which easily leads to clogging of the screen unit. After the screen unit is clogged, a lot of cleaning work is required, resulting in low efficiency of the screen unit. Utility Model Content

[0004] This invention overcomes the shortcomings of the prior art and provides an implementation method for a centralized soil supply system for seedling raising lines, which is expected to solve the problem that existing seedling raising soil crushing devices cannot control the amount of material entering the screen during use, which easily leads to screen blockage.

[0005] To solve the above-mentioned technical problems, one embodiment of this utility model adopts the following technical solution:

[0006] A centralized soil supply system for seedling raising lines includes a conveyor hopper, a transverse conveyor, a support frame, a cylindrical screen, and a longitudinal conveyor. The conveyor hopper has an opening at the top and a long, narrow discharge port at the bottom. The conveyor hopper is fixedly installed on the upper part of the support frame. The transverse conveyor is located at the bottom of the conveyor hopper, with its conveyor belt corresponding vertically to the discharge port. The feed end of the transverse conveyor is close to the bottom of the discharge port. The height of the transverse conveyor relative to the discharge port is adjustable. The discharge end of the transverse conveyor extends beyond the conveyor hopper and connects to the feed end of the cylindrical screen. The feed end of the longitudinal conveyor is located at the bottom of the screen mesh of the cylindrical screen.

[0007] In this utility model, the term "vertical correspondence" means that two objects or two parts, one above the other, are in a vertically corresponding position.

[0008] Furthermore, multiple conveyor support plates are fixedly installed at the bottom of the transverse conveyor. Both ends of the conveyor support plates are connected to the support frame via vertically arranged height-adjusting bolts. The height between the transverse conveyor and the discharge port is adjusted using these height-adjusting bolts. Adjustment using these bolts includes adjusting some of the bolts to achieve height adjustment, or adjusting all of the bolts simultaneously to achieve height adjustment.

[0009] Furthermore, the height of the conveyor support plate at the feed inlet end of the conveyor is higher than the height of the conveyor support plate at the discharge outlet end of the transverse conveyor, and the height position between the discharge outlet end and the discharge port of the transverse conveyor is adjusted by the discharge outlet end height adjustment bolt.

[0010] Furthermore, the feed end of the transverse conveyor is rotatably connected to the support frame, and a conveyor support plate is fixedly installed at the bottom of the discharge end of the transverse conveyor. Lifting cylinders are vertically installed at both ends of the conveyor support plate, and the upper end of the lifting cylinders is fixedly connected to the support frame. The height position between the discharge end and the discharge port of the transverse conveyor is adjusted by the discharge end lifting cylinder.

[0011] Furthermore, the conveyor belt of the transverse conveyor is provided with soil guide plates on both sides. A sealing rubber is fixedly installed in the discharge port at the position corresponding to the soil guide plate. A sealing rubber is also provided in the discharge port at the position corresponding to the feed end of the transverse conveyor. The lower end of the sealing rubber corresponding to the soil guide plate overlaps with the soil guide plate, and the sealing rubber corresponding to the feed end of the transverse conveyor 1 overlaps with the conveyor belt.

[0012] Furthermore, the conveyor hopper is also equipped with multiple transverse tie rods, the two ends of which are fixedly connected to the two opposite side walls of the conveyor hopper; a feeding hopper is also sleeved on the upper part of the conveyor hopper.

[0013] Furthermore, the longitudinal conveyor has a horizontal section and an inclined section, which are connected together to form a continuous conveying mechanism. The horizontal section is located at the bottom of the screen of the cylindrical screen.

[0014] Furthermore, the bottom of the discharge end of the transverse conveyor is fixedly connected to the inlet end of the soil feed hopper, and the discharge end of the soil feed hopper extends into the interior of the cylindrical screen through the inlet of the cylindrical screen.

[0015] Furthermore, the cylindrical screen is provided with soil sealing plates on both sides of the feed inlet, and the soil sealing plates are attached to both sides of the soil feed hopper.

[0016] Furthermore, the cylindrical screen is fixedly installed by a support frame, and the bottom of the support frame is also provided with height adjustment feet.

[0017] Compared with the prior art, the present invention has at least the following beneficial effects: The present invention controls the thickness of the seedling soil output from the conveyor hopper by controlling the height position between the discharge end and the discharge port of the transverse conveyor, thereby effectively controlling the amount of seedling soil fed into the cylindrical screen and avoiding blockage of the cylindrical screen. By adjusting the axial dimension of the soil feed hopper inside the cylindrical screen and by adjusting the vertical dimension between the cylindrical screen and the soil feed hopper by adjusting the height adjustment feet, the screening efficiency of the cylindrical screen is further improved. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram showing the installation position of the sealing rubber of this utility model;

[0020] Figure 3 This is a schematic diagram of the installation of the conveyor support plate of this utility model;

[0021] Figure 4 This is a schematic diagram of the soil feed hopper of this utility model;

[0022] Figure 5 This is a schematic diagram of the installation of the lifting cylinder of this utility model;

[0023] Figure 6 This is an enlarged view of the installation position of the lifting cylinder of this utility model;

[0024] Reference numerals: 1. Conveyor hopper; 2. Transverse conveyor; 3. Support frame; 4. Cylindrical screen; 5. Longitudinal conveyor; 6. Conveyor support plate; 7. Height adjusting bolt; 8. Soil guide plate; 9. Sealing rubber; 10. Transverse tie rod; 11. Feed hopper; 12. Soil feed hopper; 13. Cylindrical screen soil sealing plate; 14. Height adjusting feet; 15. Discharge port; 16. Lifting cylinder. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this utility model.

[0026] Example 1

[0027] like Figures 1-4 As shown: A centralized soil supply system for seedling raising line includes a conveyor hopper 1, a transverse conveyor 2, a support frame 3, a cylindrical screen 4, and a longitudinal conveyor 5. The conveyor hopper 1 is a long funnel shape with an opening at the top and a long discharge port 15 at the bottom. The conveyor hopper 1 is fixedly installed on the upper part of the support frame 3. The transverse conveyor 2 is located at the bottom of the conveyor hopper 1. The conveyor belt of the transverse conveyor 2 is vertically aligned with the position of the discharge port 15. The discharge port end of the transverse conveyor 2 extends beyond the bottom of the conveyor hopper 1 and is connected to the inlet end of the soil feed hopper 12. The discharge port end of the soil feed hopper 12 is connected to the inlet end of the cylindrical screen 4. The inlet end of the longitudinal conveyor 5 is located below the screen of the cylindrical screen 4, and its conveying direction is parallel to the axial direction of the cylindrical screen 4. During use, the height distance between the transverse conveyor 2 and the discharge port 15 can be adjusted up and down to make the conveyor belt of the transverse conveyor 2 closer to or further away from the discharge port 15, thereby controlling the thickness of the seedling soil output in the conveyor hopper 1 and thus avoiding blockage of the cylindrical screen 4.

[0028] The bottom of the transverse conveyor 2 is also equipped with multiple conveyor support plates 6. Both ends of the conveyor support plates 6 are connected to the support frame 3 via vertically installed height adjustment bolts 7. The height of the conveyor support plates 6 is adjusted by the height adjustment bolts 7, thereby achieving vertical height adjustment of the transverse conveyor 2. This allows the conveyor belt of the transverse conveyor 2 to move closer to or further away from the discharge port 15, controlling the thickness of the seedling soil output from the conveyor hopper 1. When the conveyor belt of the transverse conveyor 2 moves closer to the discharge port 15, the thickness of the seedling soil decreases; when the conveyor belt moves further away from the discharge port 15, the thickness of the seedling soil increases. Furthermore, the thickness of the seedling soil can be increased by gradually changing the position of the three conveyor support plates. The height distance between the support plate 6 and the discharge port 15, i.e., the height of the conveyor support plate at the inlet end of the transverse conveyor 2 is higher than the height of the conveyor support plate at the outlet end, causes the outlet end of the transverse conveyor 2 to tilt downward. In use, by adjusting the height of the support plate 6 at the outlet end of the transverse conveyor 2, the tilt angle of the outlet end of the transverse conveyor 2 can be adjusted, thereby achieving the adjustment of the seedling soil thickness. In this embodiment, there are three sets of conveyor support plates 6, and one set is set at 650mm intervals at the bottom of the transverse conveyor 2. The height adjustment bolt 7 is M16×650. In other embodiments, the number and distance of the conveyor support plates 6 are adjusted according to actual needs.

[0029] The conveyor belt of the transverse conveyor 2 is also equipped with soil guide plates 8 on both sides. A sealing rubber sheet 9 is fixedly installed at the corresponding position of the discharge port 15 inside the conveyor hopper 1 and the corresponding position of the feed end of the transverse conveyor 2. The sealing rubber sheet 9 forms a three-sided seal. The sealing rubber sheet 9 is an elastic rubber sheet. The lower end of the sealing rubber sheet 9 corresponding to the soil guide plate 8 overlaps with the soil guide plate 8, and the sealing rubber sheet 9 corresponding to the feed end of the transverse conveyor 2 overlaps with the conveyor belt. Through the cooperation of the soil guide plate 8 and the sealing rubber sheet 9, leakage of seedling soil from the discharge port 15 and the transverse conveyor 2 is prevented. At the same time, the soil guide plate 8 can guide the output seedling soil, allowing it to enter the interior of the cylindrical screen 4 through the preset channel.

[0030] The conveyor hopper 1 is also equipped with multiple transverse tie rods 10. The two ends of the transverse tie rods 10 are fixedly connected to the two opposite side walls of the conveyor hopper 1. The transverse tie rods 10 are used to prevent the conveyor hopper 1 from expanding and deforming during use.

[0031] The upper part of the conveyor hopper 1 is also fitted with a feeding hopper 11. The top of the feeding hopper 11 is fixedly connected to the support frame 3, and the lower part of the feeding hopper 11 is bolted to the conveyor hopper 1. The feeding hopper 11 increases the amount of seedling soil stored in the conveyor hopper 1, reducing the process of frequent feeding.

[0032] The cylindrical screen 4 is a cylindrical screen with an outer shell covering its outer sides and top to prevent dust from flying. It has openings at both ends. One opening is used to connect to the discharge port of the transverse conveyor 2, and the other opening is used to discharge soil clods or foreign objects that have not passed through the screen. Foreign objects include, but are not limited to, weeds, leaves, etc. The seedling soil after sieving falls from the bottom into the horizontal section of the longitudinal conveyor 5.

[0033] The longitudinal conveyor 5 has a horizontal section and an inclined section, which are connected together to form a continuous conveying system. The horizontal section is located below the cylindrical screen 4, and the seedling soil is screened onto the horizontal section. The inclined section lifts the seedling soil upward and conveys it to connect with the subsequent equipment.

[0034] In this embodiment, the seedling soil is fed into the feeding hopper 11 via the device. The transverse conveyor 2 is then started, and the seedling soil is conveyed to the cylindrical screen 4 via the conveyor belt of the transverse conveyor 2. The cylindrical screen 4 rotates to sieve the seedling soil. After passing through the screen of the cylindrical screen 4, the seedling soil falls onto the longitudinal conveyor 5 and is then conveyed to the seedling tray loading process or temporary stacking. Clumps or foreign objects that fail to pass through the screen 4 are discharged through the outlet at the rear of the cylindrical screen 4. When the flow rate of seedling soil output by the transverse conveyor 2 is too large, the vertical height of the conveyor support plate 6 is adjusted by the height adjustment bolt 7 to reduce the relative distance between the discharge port end and the discharge port 15 of the transverse conveyor 2, thereby reducing the thickness of the seedling soil output by the transverse conveyor 2 and reducing the output flow rate of the seedling soil in the conveyor hopper 1, thus preventing the cylindrical screen 4 from being blocked due to excessive seedling soil flow.

[0035] Example 2

[0036] like Figure 5 , Figure 6 As shown, this embodiment is basically the same as embodiment 1, except that the method of changing the vertical distance between the transverse conveyor 2 and the discharge port 15 is different. The feed end of the transverse conveyor 2 is rotatably connected to the support frame 3, and the bottom of the discharge end of the transverse conveyor 2 is fixedly installed with a conveyor support plate 6. Lifting cylinders 16 are vertically arranged at both ends of the conveyor support plate 6. The upper end of the lifting cylinder 16 is fixedly connected to the support frame 3. The vertical height is adjusted by controlling the extension and retraction of the lifting cylinder 16, thereby changing the vertical height distance between the discharge end of the transverse conveyor 2 and the discharge port 15. In use, only the extension and retraction of the lifting cylinder 16 needs to be controlled to control the thickness of the seedling soil output in the conveyor hopper 1.

[0037] Example 3

[0038] like Figure 1 , Figure 4 As shown: This embodiment is a further solution of Embodiment 1 or Embodiment 2, wherein a soil feed hopper 12 is provided between the transverse conveyor 2 and the cylindrical screen 4. The inlet end of the soil feed hopper 12 is fixedly connected to the bottom of the outlet end of the transverse conveyor 2. The outlet end of the soil feed hopper 12 extends into the cylindrical screen 4 through the inlet end of the cylindrical screen 4, and the seedling soil output by the transverse conveyor 2 is conveyed into the cylindrical screen 4 through the soil feed hopper 12. Cylindrical screen soil sealing plates 13 are also provided on both sides of the inlet end of the cylindrical screen 4. The cylindrical screen soil sealing plates 13 are attached to the two sides of the soil feed hopper 12 to prevent the seedling soil from overflowing from the soil feed hopper 12. The cylindrical screen 4 is fixedly installed by a support frame, and the bottom of the support frame is provided with a height adjustment foot cup 14. The height position of the cylindrical screen 4 is adjusted by the height adjustment foot cup 14, thereby realizing the vertical height adjustment of the soil feed hopper 12 inside the cylindrical screen 4.

[0039] In this embodiment, the relative distance between the cylindrical screen 4 and the soil feed hopper 12 along the screen rotation axis can be adjusted to regulate the size of the soil feed hopper 12's outlet end extending into the cylindrical screen 4. This controls the overlap area between the soil feed hopper 12's outlet end and the cylindrical screen 4, improving screen efficiency and preventing clogging. The height of the cylindrical screen 4 can be adjusted by adjusting the height adjustment foot cup 14, thereby adjusting the vertical distance between the soil feed hopper 12's outlet end and the cylindrical screen 4. This prevents contact between the soil feed hopper 12's outlet end and the screen while ensuring the seedling soil falling from the soil feed hopper 12 onto the screen has impact force, further improving the screening efficiency of the cylindrical screen 4 and effectively preventing soil clogging. The entire device can be divided into a transverse conveying section, a cylindrical screening section, and a longitudinal conveying section, which are easily separated and installed.

[0040] Although the present invention has been described herein with reference to illustrative embodiments, it should be understood that many other modifications and implementations can be devised by those skilled in the art, which will fall within the scope and spirit of the principles disclosed herein. More specifically, various variations and improvements can be made to the components and / or layout of the subject matter combination within the scope of the present application. Besides variations and improvements to the components and / or layout, other uses will be apparent to those skilled in the art.

Claims

1. A centralized soil supply system for seedling raising lines, characterized in that: The system includes a conveyor hopper (1), a transverse conveyor (2), a support frame (3), a cylindrical screen (4), and a longitudinal conveyor (5). The conveyor hopper (1) has an opening at the top and a long strip-shaped discharge port (15) at the bottom. The conveyor hopper (1) is fixedly installed on the upper part of the support frame (3). The transverse conveyor (2) is located at the bottom of the conveyor hopper (1), and its conveyor belt is vertically aligned with the discharge port (15). The feed end of the transverse conveyor (2) is close to the bottom of the discharge port (15). The height of the transverse conveyor (2) relative to the discharge port (15) is adjustable. The discharge end of the transverse conveyor (2) extends beyond the conveyor hopper (1) and is connected to the feed end of the cylindrical screen (4). The feed end of the longitudinal conveyor (5) is located at the bottom of the screen of the cylindrical screen (4).

2. The centralized soil supply system for seedling raising lines according to claim 1, characterized in that: Multiple conveyor support plates (6) are fixedly installed at the bottom of the transverse conveyor (2). The two ends of the conveyor support plates (6) are connected to the support frame (3) by vertically set height adjustment bolts (7). The height position between the transverse conveyor (2) and the discharge port (15) is adjusted by the height adjustment bolts (7).

3. The centralized soil supply system for seedling raising lines according to claim 2, characterized in that: The height of the conveyor support plate at the feed inlet end of the transverse conveyor (2) is higher than the height of the conveyor support plate at the discharge outlet end of the transverse conveyor (2). The height position between the discharge outlet end and the discharge port (15) of the transverse conveyor (2) is adjusted by the discharge outlet end height adjustment bolt (7).

4. The centralized soil supply system for seedling raising lines according to claim 1, characterized in that: The feed end of the transverse conveyor (2) is rotatably connected to the support frame (3). A conveyor support plate (6) is fixedly installed at the bottom of the discharge end of the transverse conveyor (2). Lifting cylinders (16) are vertically installed at both ends of the conveyor support plate (6). The upper end of the lifting cylinder (16) is fixedly connected to the support frame (3). The height position between the discharge end of the transverse conveyor (2) and the discharge port (15) is adjusted by the discharge end lifting cylinder (16).

5. The centralized soil supply system for seedling raising lines according to claim 2 or 4, characterized in that: The conveyor belt of the transverse conveyor (2) is also provided with soil guide plates (8) on both sides. A sealing rubber (9) is also fixedly installed in the discharge port (15) at the position corresponding to the soil guide plate (8). A sealing rubber (9) is also provided in the discharge port (15) at the position corresponding to the feed end of the transverse conveyor (2). The lower end of the sealing rubber (9) corresponding to the soil guide plate (8) overlaps with the soil guide plate (8). The sealing rubber (9) corresponding to the feed end of the transverse conveyor 1 overlaps with the conveyor belt.

6. The centralized soil supply system for seedling raising lines according to claim 5, characterized in that: The conveyor hopper (1) is also provided with multiple transverse tie rods (10), and the two ends of the transverse tie rods (10) are fixedly connected to the two opposite side walls of the conveyor hopper (1); the upper part of the conveyor hopper (1) is also fitted with a feeding hopper (11).

7. The centralized soil supply system for seedling raising lines according to claim 5, characterized in that: The longitudinal conveyor (5) has a horizontal section and an inclined section, which are connected together to form a continuous conveyor. The horizontal section is located at the bottom of the screen of the cylindrical screen (4).

8. The centralized soil supply system for seedling raising lines according to claim 5, characterized in that: The bottom of the discharge end of the transverse conveyor (2) is fixedly connected to the inlet end of the soil feed hopper (12), and the discharge end of the soil feed hopper (12) extends into the interior of the cylindrical screen (4) through the inlet of the cylindrical screen (4).

9. The centralized soil supply system for seedling raising lines according to claim 8, characterized in that: The cylindrical screen (4) is also provided with a cylindrical screen soil sealing plate (13) on both sides of the feed inlet, and the cylindrical screen soil sealing plate (13) is attached to both sides of the soil feed hopper (12).

10. The centralized soil supply system for seedling raising lines according to claim 9, characterized in that: The cylindrical screen (4) is fixedly installed by a support frame, and the bottom of the support frame is also provided with a height adjustment foot cup (14).

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