Simple matrix trenching device

Abstract

The utility model relates to seeding ditching technical field, concretely relates to a simple substrate ditching device, including seedling tray and base, the base top rotatable connection has a plurality of for conveying seedling tray's conveying roller, the base top fixedly connected with the symmetrically arranged support column, the support column mutually close one side all have the sliding slot, all sliding fit have the fixed ring in the sliding slot, all fixed ring top fixedly connected with the spring in the sliding slot, spring bottom all with corresponding fixed ring top fixedly connected, the base top is equipped with fixed shaft, fixed shaft top fixedly connected with the pressure roller of v -shaped tooth, fixed shaft both ends all with corresponding fixed ring coaxial rotation connection. The utility model discloses set up the pressure roller of v -shaped tooth on the seedling tray conveying path, utilize its on the surface of substrate and press out the groove, thereby restricts seed sowing position, solved the seed deviation problem that the traditional seeding machine caused because of the surface of substrate has no constraint.

Description

Technical Field

[0001] This utility model relates to the field of sowing and trenching technology, specifically to a simple substrate trenching device. Background Technology

[0002] Rice seedlings are a crucial part of the rice cultivation process. Their core function is to provide a controllable and optimized initial environment for rice growth, ensuring that the seedlings grow healthily and uniformly, thus laying a solid foundation for subsequent transplanting or direct seeding.

[0003] Traditional manual seedling raising (such as manual spot sowing and row sowing) is extremely inefficient, requiring a large amount of manpower per acre. Currently, centralized seedling raising effectively shortens the rice's growth cycle in the field, avoiding the impact of adverse weather conditions on seedlings, such as low temperatures in early spring or high temperatures in summer. It also reduces the amount of seed needed for field sowing, lowering planting costs. For example, the commonly used Jiamusi Huifeng 2BP-1300 seedling tray planter places the seedling trays on a conveyor mechanism. The machine, driven by a power system, moves the conveyor belt, causing the seedling trays to pass sequentially through the soil-laying station, where soil is then laid. The device evenly spreads the prepared nutrient soil at the bottom of the seedling tray, forming a uniform subsoil layer. Then, the seedling tray moves to the sowing position, where the seed metering device uses mechanical vibration or air suction to quantitatively and evenly sow the seeds on the subsoil surface, ensuring that the number of seeds per hole meets agronomic requirements. Next, the seedling tray moves to the covering position, where a covering device covers a thin layer of soil to bury the seeds. Finally, the completed seedling tray is transported to a designated location to await subsequent watering, germination, and other processes. The entire process is achieved through an integrated mechanical structure that enables continuous operation, reduces manual intervention, and improves seedling raising efficiency.

[0004] However, in actual use, when the Jiamusi Huifeng 2BP-1300 seedling tray seeder sows seeds on the surface of the subsoil, although the seed metering device sows the seeds in a strip shape on the subsoil, the subsoil surface is flat and has no restraining ability on the strip-sown seeds. Therefore, the seeds will deviate in the sowing position during the sowing process, affecting the sowing accuracy, causing missed sowing and double sowing, and thus affecting the seedling success rate.

[0005] Therefore, this utility model proposes a simple substrate trenching device to solve the above problems. Utility Model Content

[0006] To address the aforementioned problems, this invention provides a simple substrate trenching device. By setting a pressure roller with V-shaped teeth on the seedling tray conveying path, the device presses grooves into the substrate surface, thereby constraining the seed sowing position and solving the problem of seed deviation caused by the lack of constraint on the substrate surface in traditional seeders.

[0007] To achieve the above objectives, the technical solution of this utility model is as follows: A simple substrate trenching device includes a seedling tray and a base. Several conveying rollers for conveying the seedling tray are rotatably connected to the base. Symmetrically arranged support columns are fixedly connected to the top of the base. Each support column has a sliding groove on one side close to the other. A fixing ring is slidably fitted in each sliding groove. A spring is fixedly connected to the top wall of each sliding groove. The bottom end of each spring is fixedly connected to the top of the corresponding fixing ring. A fixed shaft is provided above the base. A pressure roller with V-shaped teeth is fixedly connected to the fixed shaft. Both ends of the fixed shaft are coaxially rotatably connected to the corresponding fixing ring.

[0008] The technical principle of the above solution is as follows: The seedling tray is placed on the conveyor roller of the base. As the conveyor roller moves, the rotation of the conveyor roller drives the seedling tray forward. The elastic force of the spring is transmitted to the fixed shaft through the fixed ring, so that the pressure roller is in close contact with the substrate surface of the seedling tray. When the seedling tray moves, the friction between the substrate and the V-shaped teeth of the pressure roller drives the pressure roller to rotate. The V-shaped teeth press grooves into the substrate surface. After the grooves are formed, the seeds sown later will fall into the grooves to avoid deviation.

[0009] The above approach has the following beneficial effects: 1. This solution uses pressure rollers to press grooves into the substrate surface, creating physical constraints on the strip-sown seeds, effectively preventing seed displacement during sowing and improving sowing accuracy; 2. This solution uses the constraint effect of the trenches to make the seeds more evenly distributed in the designated position, reducing the phenomenon of missed sowing and re-sowing caused by seed displacement, and improving the success rate of seedling raising.

[0010] 3. This solution can adapt to substrates of different thicknesses through the elastic pressure of the spring, avoiding excessive compression of the seedling tray by the pressure roller.

[0011] Furthermore, the V-shaped tooth angle of the pressure roller is set to 45°.

[0012] Beneficial effects: The 45° V-shaped tooth angle can effectively form a constraint groove, while avoiding substrate damage due to excessive angle or shallow groove due to insufficient angle, thus improving the seed positioning effect.

[0013] Furthermore, the V-shaped teeth of the pressure roller are evenly distributed along the axial direction of the pressure roller, and the spacing between adjacent V-shaped teeth is 10-20mm.

[0014] Beneficial effects: The uniform and reasonable tooth spacing ensures that the furrow distribution matches the sowing requirements, further improving sowing accuracy and reducing seed waste.

[0015] Furthermore, the bottom of the seedling tray is provided with a positioning groove corresponding to the width of the conveying roller.

[0016] Beneficial effects: The positioning groove effectively prevents the seedling tray from shifting laterally during transport, ensuring that the grooves pressed by the pressure roller on the substrate surface are accurately positioned, thus improving the overall operational stability.

[0017] Furthermore, the surface of the conveyor rollers is provided with an anti-slip rubber layer.

[0018] Beneficial effects: The anti-slip rubber layer increases the friction between the conveyor roller and the seedling tray, preventing the seedling tray from slipping and causing poor conveying or positional deviation, thus ensuring the continuity of the furrow pressing and sowing process.

[0019] Furthermore, the rotating connection between the fixed shaft and the fixed ring is coated with polytetrafluoroethylene.

[0020] Beneficial effects: The low-friction properties of the PTFE coating make the fixed shaft rotate more smoothly, reduce mechanical wear, and lower the maintenance frequency.

[0021] Furthermore, the surface of the pressure roller is provided with an anti-stick coating.

[0022] Beneficial effects: The anti-stick coating effectively prevents the substrate from adhering to the surface of the pressure roller, ensuring consistency in each pressing, and improving work efficiency and quality.

[0023] Furthermore, the side wall of the pressure roller shaft has symmetrical counterweight cavities, each containing a counterweight block of corresponding weight. The top of each counterweight cavity is hinged with a cover plate, and the pressure roller shaft has several latches corresponding to the cover plates.

[0024] Beneficial effects: The adjustable counterweight design allows the device to adapt to various substrate types, and the trench depth can be flexibly controlled by adding or removing counterweights, thus improving the device's versatility.

[0025] Furthermore, the inner walls of the sliding grooves are all coated with a wear-resistant coating.

[0026] Beneficial effects: The wear-resistant coating reduces frictional loss between the sliding groove and the fixed ring, improves the durability of the device, and reduces maintenance costs.

[0027] Furthermore, the support column is equipped with scale lines for observing the position of the fixing ring.

[0028] Beneficial effects: The scale lines allow operators to intuitively understand the position of the pressure roller and quickly adjust it to the appropriate pressure groove depth, improving the operability and accuracy of the operation.

[0029] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0030] Figure 1 This is an overall isometric view of an embodiment of the simplified substrate trenching device of this utility model; Figure 2This is a front sectional view of the pressure roller in an embodiment of the simplified substrate trenching device of this utility model; Figure 3 This is an appendix to an embodiment of the simplified substrate trenching device of this utility model. Figure 2 -Detailed drawing at point A.

[0031] The reference numerals in the accompanying drawings of the instruction manual include: 1. Seedling tray; 2. Base; 3. Conveying roller; 4. Support column; 5. Sliding groove; 6. Fixing ring; 7. Spring; 8. Fixing shaft; 9. Pressure roller; 10. Counterweight cavity; 11. Counterweight block; 12. Cover plate; 13. Lock. Detailed Implementation

[0032] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0033] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0034] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0035] The following detailed description illustrates the specific implementation method: Example 1: As attached Figure 1As shown: A simple substrate trenching device includes a seedling tray 1 and a base 2. Several conveying rollers 3 for conveying the seedling tray 1 are rotatably connected to the base 2. The bottom of the seedling tray 1 is provided with positioning grooves that correspond to the width of the conveying rollers 3. The surface of the conveying rollers 3 is provided with an anti-slip rubber layer. Because the existing seedling tray 1 seeder relies solely on the seed metering device to spread the seeds in strips on the substrate during the seed sowing process, the planar state of the subsoil surface has no constraint on the sown seeds. During the sowing process, the seeds are prone to deviation, affecting the sowing accuracy. To improve sowing accuracy and seedling success rate, see attached... Figure 1 and attached Figure 2 As shown, symmetrically arranged support columns 4 are welded to the top of the base 2. Each support column 4 has a sliding groove 5 on one side close to the other. A fixing ring 6 is slidably engaged with the sliding groove 5 through a slide rail. The inner wall of the sliding groove 5 is coated with a wear-resistant coating. A spring 7 is welded to the top wall of the inner wall of the sliding groove 5. The bottom end of the spring 7 is welded to the top of the corresponding fixing ring 6. A fixed shaft 8 is provided above the base 2. A pressure roller 9 with V-shaped teeth is welded to the fixed shaft 8. The angle of the V-shaped teeth of the pressure roller 9 is set to 45°. The V-shaped teeth of the pressure roller 9 are evenly distributed along the axial direction of the pressure roller 9. The spacing between adjacent V-shaped teeth is 10-20mm. The surface of the pressure roller 9 is coated with an anti-stick coating. Both ends of the fixed shaft 8 are coaxially rotatably connected to the corresponding fixing ring 6. The rotatable connection between the fixed shaft 8 and the fixing ring 6 is coated with polytetrafluoroethylene. The pressure roller 9 presses grooves into the substrate surface, forming a physical constraint on the strip-sown seeds, effectively preventing the seeds from shifting position during sowing and improving sowing accuracy.

[0036] The specific implementation process is as follows: First, the operator places the seedling tray 1 containing the substrate on the conveying roller 3 of the base 2. At this time, the positioning groove at the bottom of the seedling tray 1 is precisely engaged with the conveying roller 3 to prevent the seedling tray 1 from shifting laterally during the conveying process and to ensure the accuracy of the subsequent pressing groove position. Then, the conveying roller 3 starts to rotate, driving the seedling tray 1 to move forward along the conveying path. When the seedling tray 1 moves to the bottom of the pressing roller 9, the spring 7 in the sliding groove 5 transmits the elastic force to the fixed shaft 8 through the fixed ring 6, so that the pressing roller 9 is in close contact with the substrate surface of the seedling tray 1. The elastic pressure design of the spring 7 can adapt to substrates of different thicknesses and avoid the pressing roller 9 from causing excessive compression to the seedling tray 1. As the seedling tray 1 continues to move, the friction between the substrate and the V-shaped teeth of the pressure roller 9 drives the pressure roller 9 to rotate. The angle of the V-shaped teeth of the pressure roller 9 is set to 45°. This angle can effectively form a constraint groove, and avoid substrate damage due to an excessively large angle or shallow grooves due to an excessively small angle, thus improving the seed positioning effect. The V-shaped teeth are evenly distributed along the axial direction of the pressure roller 9 with an adjacent spacing of 10-20mm. The uniform and reasonable tooth spacing ensures that the groove distribution matches the sowing requirements, further improving sowing accuracy and reducing seed waste. Finally, the pressure roller 9 presses out uniform grooves on the substrate surface. These grooves form a physical constraint on the seeds that are subsequently sown in strips, effectively preventing the seeds from shifting position during sowing and improving sowing accuracy. At the same time, the constraint effect of the grooves makes the seeds more evenly distributed in the designated position, reducing missed sowing and double sowing caused by seed shift, improving the seedling success rate. Furthermore, the elastic pressure of the spring 7 can adapt to substrates of different thicknesses, avoiding excessive compression of the seedling tray 1 by the pressure roller 9, thus realizing the versatility and stability of the device. After the pressure roller 9 finishes ditching a seedling tray 1, the pressure roller 9 contacts the edge of the seedling tray 1. The reaction force of the edge of the seedling tray 1 on the pressure roller 9 pushes the pressure roller 9 upward, thereby compressing the spring 7. When the pressure roller 9 crosses from the edge of one seedling tray 1 to the next seedling tray 1, the reaction force of the edge of the seedling tray 1 on the pressure roller 9 disappears. The elastic deformation of the spring 7 drives the pressure roller 9 to move downward and reset, and then continue to ditch the substrate in the next seedling tray 1. The elastic deformation of the spring 7 is used to realize continuous ditching operation.

[0037] Example 2: As attached Figure 2 and attached Figure 3 As shown, the difference from Example 1 is that, due to the different hardness of different substrates (seedling soil), the reaction force on the pressure roller 9 is different during the furrowing process, resulting in inconsistent compression of the spring 7, which in turn causes the furrowing depth of the pressure roller 9 to be different. In order to ensure the uniformity of the furrowing depth, the side wall of the pressure roller 9 is symmetrically provided with counterweight cavities 10, and each counterweight cavity 10 is provided with a counterweight block 11 of corresponding weight. The top of each counterweight cavity 10 is hinged with a cover plate 12, and the shaft of the pressure roller 9 is provided with several latches 13 corresponding to the cover plate 12. The support column 4 is provided with scale lines for observing the position of the fixing ring 6.

[0038] The specific implementation process is as follows: Different hardnesses have different reaction forces on the pressure roller 9, resulting in different heights of the pressure roller 9, and consequently different groove depths after grooving. The height of the pressure roller 9 is judged based on the height data displayed on the scale line to determine whether the height meets the standard. The weight of the counterweight block 11 is used to adjust the grooving depth of the pressure roller 9 on the substrate to ensure that the grooving depth meets the standard.

[0039] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A simple substrate trenching device, comprising a seedling tray (1) and a base (2), wherein a plurality of conveying rollers (3) for conveying the seedling tray (1) are rotatably connected to the base (2), characterized in that: The base (2) is fixedly connected to a symmetrically arranged support column (4). Each support column (4) has a sliding groove (5) on one side close to each other. Each sliding groove (5) has a fixed ring (6) slidingly fitted inside. Each sliding groove (5) has a spring (7) fixedly connected to the top wall of the sliding groove (5). The bottom end of each spring (7) is fixedly connected to the top of the corresponding fixed ring (6). A fixed shaft (8) is provided above the base (2). A pressure roller (9) with V-shaped teeth is fixedly connected to the fixed shaft (8). Both ends of the fixed shaft (8) are coaxially rotatably connected to the corresponding fixed ring (6).

2. The simple substrate trenching device according to claim 1, characterized in that: The V-shaped tooth angle of the pressure roller (9) is set to 45°.

3. The simple substrate trenching device according to claim 2, characterized in that: The V-shaped teeth of the pressure roller (9) are evenly distributed along the axial direction of the pressure roller (9), and the distance between adjacent V-shaped teeth is 10-20mm.

4. The simple substrate trenching device according to claim 3, characterized in that: The bottom of the seedling tray (1) is provided with a positioning groove corresponding to the width of the conveying roller (3).

5. The simple substrate trenching device according to claim 4, characterized in that: The surface of the conveyor rollers (3) is provided with an anti-slip rubber layer.

6. The simple substrate trenching device according to claim 1, characterized in that: The fixed shaft (8) and the fixed ring (6) are both coated with polytetrafluoroethylene at the rotatable connection.

7. The simplified substrate trenching device according to claim 3, characterized in that: The surface of the pressure roller (9) is provided with an anti-stick coating.

8. The simple substrate trenching device according to claim 1, characterized in that: The pressure roller (9) has symmetrical counterweight cavities (10) on its side wall. Each counterweight cavity (10) is equipped with a counterweight block (11) of corresponding weight. Each counterweight cavity (10) is hinged with a cover plate (12) on its top. The pressure roller (9) has several latches (13) corresponding to the cover plate (12).

9. The simple substrate trenching device according to claim 1, characterized in that: The inner wall of the sliding groove (5) is provided with a wear-resistant coating.

10. The simplified substrate trenching device according to claim 8, characterized in that: The support column (4) is provided with scale lines for observing the position of the fixing ring (6).

Images