Soil feeding mechanism of seedling seeding machine

Abstract

The utility model provides a soil feeding mechanism of a seedling seeding machine, which comprises a working frame, a first conveying belt and a soil filling bin, the first conveying belt is arranged on the working frame, and the soil filling bin is positioned on the first conveying belt and is used for filling hole trays with materials; the soil conveying assembly is located below the first conveying belt and comprises a soil containing bin used for containing materials, an opening is formed in the soil containing bin, and the opening is located in one side of the operation frame; and the feeding assembly is located on one side of the operation frame, the feeding assembly and the opening are arranged on the same side, the feeding assembly comprises a supporting frame and a feeding hopper, the feeding hopper is arranged on the supporting frame and can circularly rotate on the supporting frame, and the supporting frame is obliquely arranged relative to the horizontal plane so that the feeding hopper can scoop materials from the opening and convey the materials to the soil filling bin located above. The soil feeding mechanism of the seedling seeding machine solves the technical problems that in the prior art, a traditional manual filling mode is low in efficiency, and an automatic transmission device occupies a large space and affects the view field.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of seedling sowing, and particularly to a soil feeding mechanism of seedling sowing machine. BACKGROUND

[0002] In the modern agricultural operation system, the seeding machine has become the key equipment to improve the efficiency and quality of agricultural production due to its efficient, accurate and automated operation characteristics. By accurately controlling the seeding density, depth and soil conditions, the seeding machine can significantly optimize the crop growth environment and improve the yield and quality of crops.

[0003] The traditional bottom soil filling method mostly relies on manual operation, that is, the operator needs to periodically pour soil into the filling bin above the operation line of the seeding machine. This method not only wastes time and effort, but also increases labor costs, and it is difficult to ensure the uniformity and continuity of soil filling, thereby affecting the sowing effect.

[0004] In order to overcome this deficiency, some improved schemes have gradually appeared in the market. Among them, the common method is to install a soil conveying transmission device on one side of the entire operation line of the seeding machine. This design realizes the automatic filling of the bottom soil to a certain extent and improves the operation efficiency. However, this installation method also has obvious disadvantages. On the one hand, the transmission device occupies a large space, making the overall layout of the seeding machine compact and complex, which is not conducive to the maintenance and operation of the equipment. On the other hand, the installation position of the transmission device often blocks the observation field of view of the operator, making it difficult for them to monitor the sowing operation process comprehensively and clearly, thereby increasing the risk of operation errors.

[0005] Therefore, the prior art needs to be further developed. CONTENT OF THE UTILITY MODEL

[0006] The purpose of the utility model is to overcome the above technical deficiencies and provide a soil feeding mechanism of seedling sowing machine to solve the technical problems of low efficiency of traditional manual filling method, large space occupation of automatic transmission device and influence on observation field of view in related technology.

[0007] In order to achieve the above technical purpose, the utility model adopts the following technical scheme: a soil feeding mechanism of seedling sowing machine is provided, which comprises: an operation frame, a first conveying belt and a filling bin for filling material to the plug tray are arranged on the operation frame; a soil feeding assembly is located below the first conveying belt and comprises a soil storage bin for storing material, an opening is arranged on the soil storage bin, and the opening is located on one side of the operation frame; a feeding assembly is located on one side of the operation frame and is arranged on the same side as the opening, the feeding assembly comprises a support frame and a feeding hopper, the feeding hopper is arranged on the support frame and can rotate circularly on the support frame, and the support frame is inclined relative to the horizontal plane to make the feeding hopper scoop up the material from the opening and transport it to the filling bin above.

[0008] Further, the soil feeding assembly further comprises a second conveying belt arranged below the soil loading bin, the material in the soil loading bin is conveyed to the opening by the second conveying belt; the plane where the first conveying belt is arranged is parallel to the plane where the second conveying belt is arranged, the first conveying belt conveys along a first preset direction, the second conveying belt conveys along a second preset direction, the feeding hopper conveys along a third preset direction, the second preset direction and the third preset direction are in the same plane, the first preset direction is perpendicular to the second preset direction, and the second preset direction and the third preset direction form an included angle.

[0009] Further, the soil feeding assembly further comprises a flow limiting plate, the flow limiting plate divides the soil loading bin into a first soil loading bin and a second soil loading bin, the second soil loading bin is located between the first soil loading bin and the support frame, the opening is arranged on the second soil loading bin, and a gap is formed between the bottom of the flow limiting plate and the second conveying belt; the material fed from the first soil loading bin is uniformly fed into the second soil loading bin through the gap, so that the feeding hopper can uniformly pick up the material and convey the material to the soil filling bin.

[0010] Further, the end of the support frame away from the soil loading bin is connected with a discharging channel, the discharging channel extends towards the soil filling bin, so as to reduce the diffusion of dust during discharging and achieve dust prevention.

[0011] Further, the feeding assembly further comprises a motor, a transmission shaft and a chain, the transmission shaft is fixed at both ends of the support frame, the chain is sleeved on the transmission shaft, the output end of the motor is connected with one end of the transmission shaft through the support frame, the motor drives the transmission shaft to rotate, thereby driving the chain to operate, and the feeding hopper is arranged on the chain and moves with the movement of the chain; the feeding hopper is a plurality of feeding hoppers which are arranged on the chain at intervals.

[0012] Further, the transmission shaft comprises a first transmission shaft and a second transmission shaft, the height of the first transmission shaft from the horizontal plane is lower than the height of the second transmission shaft from the horizontal plane, and the motor is connected with the first transmission shaft; the soil feeding mechanism further comprises two adjusting assemblies, the two ends of the second transmission shaft pass through the sliding holes on the support frame and are connected with the two adjusting assemblies respectively, when the feeding hopper operates with the chain, the two ends of the second transmission shaft slide up and down in the sliding holes, and the tension of the chain during operation is adjusted by the adjusting assemblies.

[0013] Further, the adjusting assembly comprises: a fixed frame fixed on the support frame; a sliding plate connected with the second transmission shaft; and a spring, one end of the spring is fixed on the fixed frame and the other end of the spring extends towards the sliding plate; when the second transmission shaft slides downward in the sliding hole, the sliding plate pushes the spring to compress; when the external force decreases or disappears, the elastic restoring force of the spring pushes the sliding plate and the second transmission shaft connected therewith to slide upward, thereby realizing the up-and-down sliding of the second transmission shaft in the sliding hole.

[0014] Further, the adjusting assembly further comprises: a limiting hole arranged on the fixed frame; a sliding rod, a spring is sleeved on the sliding rod, the sliding rod passes through the limiting hole, when the sliding plate moves up and down along with the second transmission shaft, the sliding rod slides up and down in the limiting hole along a linear direction, so as to guide the compression and reset action of the spring, and the spring force can be linearly transmitted along the axial direction of the sliding rod.

[0015] Further, the end of the sliding rod is provided with an abutting cap, the abutting cap abuts against the sliding plate, and the diameter of the abutting cap is greater than that of the sliding rod.

[0016] Further, the inner side of the fixed frame is provided with a sliding rail, and the two sides of the sliding plate are provided with sliding grooves, when the sliding plate moves up and down, the sliding grooves slide on the sliding rail, so as to stabilize the movement path of the sliding plate.

[0017] Beneficial effects:

[0018] 1. The utility model discloses a transmission belt is arranged from the bottom of operation line and is sent to the material in the feeding assembly of operation line side, and then the earth filling mechanism is sent into from the top of feeding assembly, and the reasonable space layout makes the equipment more compact and simple. Meanwhile, since the feeding hopper can rotate circularly and can efficiently transmit materials, it avoids occupying too much working space, and is favorable for the overall design of the seeding machine and the optimization of the operation space.

[0019] 2. Compared with the traditional material transmission device, the design of the utility model avoids shielding the operation visual field of the operation line by reasonably arranging the position of the soil feeding assembly, so that the operator can more clearly monitor the operation process, and potential operation errors are reduced.

[0020] 3. The soil feeding mechanism comprises a first transmission belt, a second transmission belt, a feeding hopper, a first earth storage chamber, a second earth storage chamber and a limiting flow plate. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a structure schematic view of a soil feeding mechanism of the seedling seeding machine in the embodiment of the utility model from one perspective.

[0022] Figure 2 It is a structure schematic view of a soil feeding mechanism of the seedling seeding machine in the embodiment of the utility model from another perspective.

[0023] Figure 3 It is a sectional view of the soil feeding mechanism of the seedling seeding machine in the embodiment of the utility model.

[0024] Figure 4 It is Figure 1 A partial enlarged view of part A.

[0025] Wherein, the above-mentioned drawings include the following reference signs:

[0026] 1, workbench; 11, first conveying belt; 12, filling bin; 2, soil feeding assembly; 21, soil loading bin; 211, opening; 212, first soil loading bin; 213, second soil loading bin; 22, second conveying belt; 23, flow limiting plate; 24, gap; 25, roller; 26, lifting leg; 3, feeding assembly; 31, support frame; 311, sliding hole; 32, feeding hopper; 33, motor; 34, transmission shaft; 341, first transmission shaft; 342, second transmission shaft; 35, chain; 36, discharging channel; 37, door plate; 38, support plate; 4, adjusting assembly; 41, fixed frame; 42, sliding plate; 421, sliding groove; 43, spring; 44, limiting hole; 45, sliding rod; 46, abutting cap; 47, sliding rail; 48, adjusting nut. DETAILED DESCRIPTION

[0027] In order to make the personnel in the art better understand the scheme of the present application, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor should belong to the scope of protection of the present application.

[0028] According to the soil feeding mechanism of the seedling raising seeding machine, the soil feeding mechanism comprises a support frame, a soil feeding assembly and a soil conveying assembly, the soil feeding assembly is arranged on the support frame, the soil conveying assembly is arranged on the soil feeding assembly, and the soil conveying assembly comprises a first conveying belt and a second conveying belt. Figures 1 to 4, including: a work frame 1, a first conveying belt 11 and a filling bin 12 for filling the hole disc with material are arranged on the work frame 1; a soil feeding assembly 2 is located below the first conveying belt 11 and includes a soil loading bin 21 for containing material, the soil loading bin 21 is provided with an opening 211 located on one side of the work frame 1; a feeding assembly 3 is located on one side of the work frame 1 and is arranged on the same side as the opening 211, the feeding assembly 3 includes a support frame 31 and a feeding hopper 32, the feeding hopper 32 is arranged on the support frame 31 and can rotate circularly on the support frame 31, the support frame 31 is inclined relative to the horizontal plane to enable the feeding hopper 32 to scoop material from the opening 211 and transport it to the filling bin 12 above. In the traditional design, the soil conveying device is usually arranged in the middle of the work line, and the larger transmission device needs to occupy more space, which is not conducive to the compactness and efficiency of the equipment; moreover, it blocks the observation field of view of the operator, making it difficult for him to clearly monitor the seeding operation process, thereby increasing the risk of operation errors and equipment failures. The soil feeding assembly 2 is located below the first conveying belt 11, wherein the soil loading bin 21 is provided with an opening 211, and the opening 211 is located on the side of the work frame 1; the support frame 31 is inclined relative to the horizontal plane, so that the feeding hopper 32 can scoop material from the opening 211 at the best angle and effectively convey it to the filling bin 12. The present embodiment reduces the occupied space through the innovative layout of the bottom soil feeding assembly 2 and the side feeding assembly 3. Since the soil feeding assembly 2 is arranged at the bottom of the work frame 1, the feeding assembly 3 extends upward from one end of the soil feeding assembly 2 and then pours the material into the filling bin 12 from above the work frame 1, so that the soil feeding mechanism of the seedling seeding machine is more compact, and the operator can more clearly observe the operation process on both sides of the work frame 1, thereby reducing the risk of operation errors. Through the automatic feeding system, the tedious work of manual filling is eliminated, and the operation efficiency is improved. The soil feeding mechanism of the seedling seeding machine of the present embodiment solves the technical problems of low efficiency of traditional manual filling method, large space occupation of automatic transmission device and influence on observation field of view in the related art.

[0029] Referring to Figure 1 , Figure 2 and Figure 3The soil feeding mechanism of the seedling sowing machine, the soil feeding assembly 2 further comprises a second conveying belt 22, the second conveying belt 22 is arranged below the soil loading bin 21, and materials in the soil loading bin 21 are conveyed to the opening 211 through the second conveying belt 22; a plane where the first conveying belt 11 is located is parallel to a plane where the second conveying belt 22 is located, the first conveying belt 11 is conveyed along a first preset direction, the second conveying belt 22 is conveyed along a second preset direction, the feeding hopper 32 is conveyed along a third preset direction, the second preset direction and the third preset direction are in the same plane, the first preset direction is perpendicular to the second preset direction, and an included angle is formed between the second preset direction and the third preset direction. The first conveying belt 11 and the second conveying belt 22 are arranged in parallel and are located in different planes, so that the occupied space of the overall layout of the equipment can be effectively reduced; the materials can be conveyed in a more reasonable path through the included angle between the second conveying belt 22 and the feeding hopper 32. In a traditional design, the soil feeding assembly 2 and the feeding assembly 3 block the field of view of the operator, increasing the operation difficulty. In the embodiment, the soil feeding assembly 2 is arranged below the working frame 1, and the feeding assembly 3 is arranged at the head of the working frame 1, so that the occupied area is effectively reduced, the field of view of the operator is less blocked, and the operation is more flexible and convenient. The included angle between the second conveying belt 22 and the feeding hopper 32 is helpful for the conveying of the materials. Through the reasonable layout of the conveying belts and the feeding hopper in different planes and the adoption of the appropriate included angle, the embodiment has obvious advantages in optimizing the space utilization, improving the material conveying efficiency, improving the operation field of view and improving the stability of the equipment.

[0030] Referring to Figure 2 The soil feeding mechanism of the seedling sowing machine, the soil feeding assembly 2 further comprises a flow limiting plate 23, the flow limiting plate 23 divides the soil loading bin 21 into a first soil loading bin 212 and a second soil loading bin 213, the second soil loading bin 213 is located between the first soil loading bin 212 and the support frame 31, the opening 211 is arranged on the second soil loading bin 213, and a gap 24 is formed between the bottom of the flow limiting plate 23 and the second conveying belt 22; materials fed out of the first soil loading bin 212 enter the second soil loading bin 213 uniformly through the gap 24, so that the feeding hopper 32 can uniformly scoop materials and convey the materials to the soil filling bin 12. The design of the flow limiting plate 23 not only prevents soil from accumulating in the first soil loading bin 212, but also uniformly transports the soil on the second conveying belt 22 to the second soil loading bin 213 through the gap 24. Since the materials can enter the second soil loading bin 213 uniformly, the feeding hopper 32 can stably and uniformly scoop the materials during the circulating movement and convey the materials to the soil filling bin 12, so that the problems of jamming or material accumulation of the feeding hopper 32 during the conveying process due to uneven materials are avoided, and the overall material conveying efficiency is improved.

[0031] Referring to Figure 1 and Figure 2The soil feeding mechanism of the seedling raising seeder of the embodiment, one end of the support frame 31 away from the soil loading bin 21 is connected with a discharging channel 36, the discharging channel 36 is arranged extending towards the soil filling bin 12, so as to reduce the dispersion of dust in the discharging process and achieve dust prevention. The layout of the discharging channel 36 extending towards the soil filling bin 12 can effectively control and guide the dust in the material conveying process to concentrate in the soil filling bin 12, thereby reducing the dispersion of dust in the conveying process.

[0032] Referring to Figure 3 The soil feeding mechanism of the seedling raising seeder of the embodiment, the upper feeding assembly 3 further comprises a motor 33, a transmission shaft 34 and a chain 35, the transmission shaft 34 is fixed at both ends of the support frame 31, the chain 35 is sleeved on the transmission shaft 34, the output end of the motor 33 is connected with the transmission shaft 34 at one end through the support frame 31, the motor 33 drives the transmission shaft 34 to rotate, thereby driving the chain 35 to operate, the feeding hopper 32 is arranged on the chain 35 and moves with the movement of the chain 35; the feeding hopper 32 is multiple, and the multiple feeding hoppers 32 are arranged at intervals on the chain 35. The motor 33 drives the transmission shaft 34 to rotate, thereby driving the chain 35 to operate, and the feeding hopper 32 moves synchronously with the movement of the chain 35. The feeding hopper 32 is multiple, and the multiple feeding hoppers are uniformly arranged at intervals on the chain 35, which can ensure the continuous and uniform conveying of the material.

[0033] Referring to Figure 3 and Figure 4 The soil feeding mechanism of the seedling raising seeder of the embodiment, the transmission shaft 34 comprises a first transmission shaft 341 and a second transmission shaft 342, the height of the first transmission shaft 341 away from the horizontal plane is lower than the height of the second transmission shaft 342 away from the horizontal plane, and the motor 33 is connected with the first transmission shaft 341; the soil feeding mechanism further comprises two adjusting assemblies 4, the two ends of the second transmission shaft 342 pass through the sliding holes 311 on the support frame 31 and are respectively connected with the two adjusting assemblies 4, when the feeding hopper 32 operates with the chain 35, the two ends of the second transmission shaft 342 slide up and down in the sliding holes 311, and the tension of the chain 35 during operation is adjusted through the adjusting assembly 4. Through the adjusting assembly 4 and the sliding hole 311, the two ends of the second transmission shaft 342 can slide up and down in the sliding hole of the support frame 31. This design makes the adjustment of the tension of the chain 35 more flexible, can accurately adjust the tension according to the operation state and the demand of material conveying, ensures that the chain 35 maintains appropriate tension during operation, and avoids mechanical damage caused by slack or over-tightness of the chain 35.

[0034] Referring to Figure 4The soil feeding mechanism of the seedling raising seeder of the embodiment comprises an adjusting assembly 4. The adjusting assembly 4 comprises a fixed frame 41 fixed on the support frame 31, a sliding plate 42 connected with the second transmission shaft 342, and a spring 43, one end of which is fixed on the fixed frame 41 and the other end of which extends towards the sliding plate 42. When the second transmission shaft 342 slides downward in the sliding hole 311, the sliding plate 42 pushes the spring 43 to compress. When the external force decreases or disappears, the elastic restoring force of the spring 43 pushes the sliding plate 42 and the second transmission shaft 342 connected therewith to slide upward, so as to realize the upward and downward sliding of the second transmission shaft 342 in the sliding hole 311 of the support frame 31. The adjusting assembly 4 enables the second transmission shaft 342 to move upward and downward in the sliding hole 311 of the support frame 31 through the cooperation of the sliding plate 42 and the spring 43, so as to accurately adjust the tension of the chain 35. When the feeding hopper 32 is subjected to gravity when carrying soil, the second transmission shaft 342 slides downward, the sliding plate 42 pushes the spring 43 to compress, and the second transmission shaft 342 can automatically slide upward after the external force decreases through the restoring force of the spring 43, so as to maintain appropriate tension.

[0035] Referring to Figure 4 The soil feeding mechanism of the seedling raising seeder of the embodiment further comprises a limiting hole 44 provided on the fixed frame 41, and a sliding rod 45, on which the spring 43 is sleeved, and the sliding rod 45 passes through the limiting hole 44. When the sliding plate 42 moves upward and downward with the second transmission shaft 342, the sliding rod 45 slides upward and downward in the limiting hole 44 along the linear direction, so as to guide the compression and resetting actions of the spring 43, and enable the spring force to be linearly transmitted along the axial direction of the sliding rod 45. The sliding rod 45 passes through the limiting hole 44 and sleeves the spring 43, and when the sliding plate 42 moves upward and downward with the second transmission shaft 342, the sliding rod 45 slides upward and downward along the linear direction of the limiting hole 44. In this way, the compression and resetting actions of the spring 43 can be more stably and accurately guided, and the force of the spring 43 can be linearly transmitted along the axial direction of the sliding rod 45. The design of the limiting hole 44 and the sliding rod 45 helps to control the movement trajectory of the sliding plate 42 and the second transmission shaft 342, and avoids the action of lateral force.

[0036] Referring to Figure 4 The end of the sliding rod 45 is provided with an abutting cap 46 abutting against the sliding plate 42, and the diameter of the abutting cap 46 is greater than that of the sliding rod 45. The diameter of the abutting cap 46 is greater than that of the sliding rod 45, which means that the contact area between the abutting cap 46 and the sliding plate 42 is larger. This helps to provide more stable and uniform force transmission during the compression and resetting of the spring 43, and reduces wear or damage caused by excessive local stress.

[0037] Referring to Figure 4The soil feeding mechanism of the seedling raising seeder in the embodiment is provided with a sliding rod 45 which is a threaded rod, and a regulating nut 48 is threadedly connected to the threaded rod. The regulating nut 48 abuts against the spring 43. By adjusting the position of the regulating nut 48 on the threaded rod, the tension of the spring 43 on the second transmission shaft 342 can be adjusted, so as to adjust the tightness of the chain 35.

[0038] Referring to Figure 4 The soil feeding mechanism of the seedling raising seeder in the embodiment is provided with a sliding rail 47 arranged on the inner side of the fixed frame 41, and sliding grooves 421 are arranged on the two sides of the sliding plate 42. When the sliding plate 42 moves up and down, the sliding grooves 421 slide on the sliding rail 47, so as to stabilize the moving path of the sliding plate 42. The cooperation of the sliding rail 47 and the sliding grooves 421 ensures the stability and accuracy of the sliding plate 42 during the up-and-down movement. This design reduces the risk of equipment failure or precision reduction caused by unstable movement.

[0039] Referring to Figure 1 The soil feeding mechanism of the seedling raising seeder in the embodiment is provided with a rotatable roller 25 and a liftable lifting leg 26 arranged at the bottom of the soil loading bin 21. The soil feeding mechanism can be moved and positioned at the destination by using the lifting leg 26. A detachable door plate 37 is arranged on the support frame 31, so as to facilitate the observation and maintenance of the internal structure.

[0040] Referring to Figure 3 In the embodiment, a support plate 38 is arranged in the support frame 31, and is used for supporting the chain 35. When the chain 35 drives the feeding hopper 32 to operate, the chain 35 slides on the support plate 38.

[0041] It should be noted that the terms "first", "second", and the like in the specification and claims of the present application and the above-described drawings are used to distinguish similar objects, and do not necessarily indicate a specific order or a chronological sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to the process, method, product or device.

[0042] Optionally, the specific examples in the embodiment can refer to the examples described in the above-described embodiments, and the embodiment will not be described here.

[0043] The above-mentioned serial numbers of the embodiments of the present application are only for description, and do not represent the advantages and disadvantages of the embodiments.

[0044] In the above-described embodiments of the present application, the description of each embodiment has its own focus, and the parts not described in detail in a certain embodiment can be referred to the relevant description of other embodiments.

[0045] The above only describes the preferred embodiments of the present application, and it should be pointed out that, for those skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, which should also be considered as the protection scope of the present application.

Claims

1. A soil delivery mechanism for a seedling sowing machine, characterized by, The utility model relates to a filling device for filling material into a hole disc, which comprises: a workbench (1) provided with a first conveying belt (11) and a filling bin (12) for filling material into a hole disc on the first conveying belt (11); a soil feeding assembly (2) located below the first conveying belt (11) and comprising a soil loading bin (21) for containing material, the soil loading bin (21) being provided with an opening (211) on one side of the workbench (1); a material feeding assembly (3) located on the same side of the workbench (1) as the opening (211), the material feeding assembly (3) comprising a support frame (31) and a feeding hopper (32), the feeding hopper (32) being arranged on the support frame (31) and capable of rotating circularly on the support frame (31), the support frame (31) being arranged obliquely relative to the horizontal plane so that the feeding hopper (32) scoops up material from the opening (211) and transports the material to the filling bin (12) located above.

2. The soil delivery mechanism of a nursery seeder according to claim 1, wherein The soil feeding assembly (2) further comprises a second conveying belt (22) arranged below the soil loading bin (21), the material in the soil loading bin (21) being transported to the opening (211) by the second conveying belt (22); the plane in which the first conveying belt (11) is located is parallel to the plane in which the second conveying belt (22) is located, the first conveying belt (11) transports along a first predetermined direction, the second conveying belt (22) transports along a second predetermined direction, the feeding hopper (32) transports along a third predetermined direction, the second predetermined direction and the third predetermined direction are in the same plane, the first predetermined direction is perpendicular to the second predetermined direction, and the second predetermined direction and the third predetermined direction form an included angle.

3. The soil delivery mechanism of a nursery seeder according to claim 2, wherein The soil feeding assembly (2) further comprises a flow limiting plate (23) that divides the soil loading bin (21) into a first soil loading bin (212) and a second soil loading bin (213), the second soil loading bin (213) being located between the first soil loading bin (212) and the support frame (31), the opening (211) being arranged on the second soil loading bin (213), and a gap (24) being formed between the bottom of the flow limiting plate (23) and the second conveying belt (22); the material fed out of the first soil loading bin (212) is evenly introduced into the second soil loading bin (213) through the gap (24), thereby ensuring that the feeding hopper (32) can evenly scoop up material and transport the material to the filling bin (12).

4. The soil delivery mechanism of a nursery seeder according to claim 1, wherein The end of the support frame (31) away from the soil loading bin (21) is connected with a discharging channel (36), the discharging channel (36) extending towards the filling bin (12) is arranged to reduce the escape of dust during discharging and achieve dust prevention.

5. The soil delivery mechanism of a nursery seeder according to claim 1, wherein The upper feeding assembly (3) further comprises a motor (33), a transmission shaft (34) and a chain (35), the transmission shaft (34) is fixed at both ends of the support frame (31), the chain (35) is sleeved on the transmission shaft (34), the output end of the motor (33) is connected with the transmission shaft (34) at one end through the support frame (31), the motor (33) drives the transmission shaft (34) to rotate, thereby driving the chain (35) to run, the feeding hopper (32) is arranged on the chain (35) and moves with the movement of the chain (35). The feeding hopper (32) is a plurality of feeding hoppers (32) which are arranged on the chain (35) at intervals.

6. The soil delivery mechanism of a nursery seeder according to claim 5, wherein The transmission shaft (34) comprises a first transmission shaft (341) and a second transmission shaft (342), the height of the first transmission shaft (341) from the horizontal plane is lower than the height of the second transmission shaft (342) from the horizontal plane, and the motor (33) is connected with the first transmission shaft (341). The soil feeding mechanism further comprises two adjusting assemblies (4), the two ends of the second transmission shaft (342) pass through the sliding holes (311) on the support frame (31) and are respectively connected with the two adjusting assemblies (4), when the feeding hopper (32) runs with the chain (35), the two ends of the second transmission shaft (342) slide up and down in the sliding holes (311), and the tension of the chain (35) during running is adjusted through the adjusting assemblies (4).

7. The soil delivery mechanism of a nursery seeder according to claim 6 wherein, The adjusting assembly (4) comprises: A fixed frame (41) which is fixed on the support frame (31); A sliding plate (42) which is connected with the second transmission shaft (342); A spring (43) which is fixed at one end on the fixed frame (41) and extends to the sliding plate (42) at the other end; When the second transmission shaft (342) slides downward in the sliding hole (311), the sliding plate (42) pushes the spring (43) to compress; when the external force decreases or disappears, the elastic restoring force of the spring (43) pushes the sliding plate (42) and the second transmission shaft (342) connected therewith to slide upward, thereby realizing the up-and-down sliding of the second transmission shaft (342) in the sliding hole (311).

8. The soil delivery mechanism of a nursery seeder according to claim 7, wherein The adjusting assembly (4) further comprises: A limiting hole (44) which is arranged on the fixed frame (41); A sliding rod (45) on which the spring (43) is sleeved, the sliding rod (45) passes through the limiting hole (44), when the sliding plate (42) moves up and down with the second transmission shaft (342), the sliding rod (45) slides up and down in the limiting hole (44) in a straight line direction, thereby guiding the compression and reset actions of the spring (43) and enabling the spring force to be transmitted in a straight line along the axial direction of the sliding rod (45).

9. The soil delivery mechanism of a nursery seeder according to claim 8, wherein The end of the sliding rod (45) is provided with an abutting cap (46) which abuts against the sliding plate (42), and the diameter of the abutting cap (46) is larger than that of the sliding rod (45).

10. The soil delivery mechanism of a nursery seeder according to claim 9, wherein The inner side of the fixed frame (41) is provided with a sliding rail (47), and the two sides of the sliding plate (42) are provided with sliding grooves (421), which slide on the sliding rail (47) when the sliding plate (42) moves up and down, so as to stabilize the moving path of the sliding plate (42).

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