Seed screening device for trichosanthes kirilowii maxim seedling growing and planting

Abstract

The utility model relates to the technical field of agricultural planting, in particular to a seed screening device for trichosanthes kirilowii maxim seedling growing and planting, which comprises a frame, a screen is movably arranged in the frame, a vibrating mechanism rotatably connected to the inner side of the frame is arranged at the bottom of the screen, one end of the vibrating mechanism is fixedly connected with a driving motor mounted on the side wall of the frame, and the other end of the vibrating mechanism is fixedly connected with a motor. A material bin is arranged above the screen, a moving mechanism fixedly connected to the inner side of the machine frame is arranged on the side wall of the material bin, the moving mechanism is in transmission connection with a vibration mechanism through a first belt transmission assembly, an impurity removing mechanism fixedly connected to the inner side of the machine frame is arranged below the screen, and the impurity removing mechanism is in transmission connection with the vibration mechanism through a second belt transmission assembly. According to the seed screening device for trichosanthes kirilowii maxim seedling growing and planting, seeds can be evenly scattered and fall to the whole area of the screen, the coverage rate is increased to 95% or above from 60%-70% of a traditional device, the problem that the seeds are accumulated in the center of the screen is solved, screen leakage and repeated screening are reduced, and the screening precision is higher.

Description

Technical Field

[0001] This utility model relates to the field of agricultural planting technology, specifically a seed screening device for Trichosanthes kirilowii seedling cultivation. Background Technology

[0002] As a traditional Chinese medicinal herb, the quality of Trichosanthes kirilowii seed screening directly affects seedling survival rate and subsequent yield. Currently, Trichosanthes kirilowii seed screening mainly relies on traditional vibrating screens or drum screens, but this method has the following prominent problems: the feed inlet of existing devices is fixed, and the seeds fall into the central area of ​​the screen, easily forming piles. This prevents the upper seeds from making sufficient contact with the screen, resulting in missed screenings and requiring multiple screenings. This increases the number of screening steps, and the pile-up problem also increases the risk of mechanical crushing damage. In particular, the seed coat of Trichosanthes kirilowii is brittle, and the breakage rate can be as high as 15%-20%, seriously affecting the germination rate. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a seed screening device for Trichosanthes kirilowii seedling cultivation, which solves the technical problems of poor screening effect and low efficiency caused by seed accumulation in the traditional Trichosanthes kirilowii seed screening process.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a seed screening device for Trichosanthes kirilowii seedling cultivation, including a frame, a screen movably arranged inside the frame, a vibration mechanism rotatably connected to the bottom of the screen and mounted on the inner side of the frame, one end of the vibration mechanism being fixedly connected to a drive motor mounted on the side wall of the frame, a hopper above the screen, a moving mechanism fixedly connected to the inner side of the frame on the side wall of the hopper, the moving mechanism being connected to the vibration mechanism via a belt drive assembly, and a cleaning mechanism fixedly connected to the inner side of the frame below the screen, the cleaning mechanism being connected to the vibration mechanism via a belt drive assembly.

[0005] The moving mechanism includes a guide rail fixed to the inner side of the frame, a threaded block fixed to the side wall of the hopper is slidably disposed in the guide rail, the threaded block is helically connected to a reciprocating screw, the reciprocating screw is rotatably connected to the frame, and one end of the reciprocating screw is connected to the vibration mechanism through a belt drive assembly.

[0006] Preferably, the vibration mechanism includes a crankshaft rotatably connected to the inner side of the frame, one end of the crankshaft being fixedly connected to the output shaft of the drive motor, two connecting rods being hinged on the crankshaft, and a fixing plate being hinged to the top of each of the two connecting rods, the fixing plate being fixedly connected to the bottom of the screen.

[0007] Preferably, the impurity removal mechanism includes a fixed shell fixed to the inner side of the frame, a rotating shaft rotatably connected inside the fixed shell, one end of the rotating shaft being connected to the vibration mechanism via a belt drive assembly, and a plurality of fan blades arranged in a ring array fixed on the outer wall of the rotating shaft.

[0008] Preferably, two sets of cylinders are installed at the bottom of the hopper, and each set of cylinders is fixedly provided with a baffle that is movably connected to the bottom of the hopper.

[0009] Preferably, the surface of the screen near the bottom is fixed with two symmetrically arranged baffles.

[0010] Preferably, two sliders are fixed on the side wall of the screen near the bottom, and the two sliders are slidably mounted on two slide rails, both of which are fixed to the inner wall of the frame.

[0011] Preferably, a feeding chute is fixed on the side of the frame near the bottom of the screen.

[0012] Preferably, a guide plate is fixed inside the frame and located directly below the screen. The guide plate is inclined, and a receiving box is provided on one side below the guide plate.

[0013] By employing the above technical solution, this utility model provides a seed screening device for Trichosanthes kirilowii seedling cultivation, which has at least the following beneficial effects:

[0014] 1. This seed screening device for Trichosanthes kirilowii seedling cultivation links the vibration of the screen with the movement of the hopper through a belt drive assembly. This causes the hopper to move laterally and reciprocate above the screen, which allows the seeds to be evenly dispersed and fall onto the entire screen area. The coverage rate is increased from 60%-70% in traditional equipment to over 95%, avoiding the problem of seed accumulation in the center of the screen, reducing missed screenings and repeated screenings, and achieving higher screening accuracy.

[0015] 2. This seed screening device for Trichosanthes kirilowii seedling cultivation links the screen vibration with the impurity removal mechanism through the belt drive assembly 2, causing the fan blades to rotate and generate outward airflow, thereby removing impurities such as soil, weeds, and branches from the seeds. At the same time, some shriveled seeds can also be separated by airflow to improve seed purity. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of the present invention, form part of this application:

[0017] Figure 1 This is a three-dimensional structural diagram of the entire utility model;

[0018] Figure 2 This is a schematic diagram of the inner structure of the frame of this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the vibration mechanism of this utility model, which is linked to the moving mechanism and the impurity removal mechanism respectively;

[0020] Figure 4 This is a schematic diagram of the bottom structure of the hopper of this utility model.

[0021] Figure label:

[0022] 1. Frame; 2. Screen; 3. Vibration mechanism; 31. Crankshaft; 32. Connecting rod; 33. Fixed plate; 4. Drive motor; 5. Belt drive assembly one; 6. Moving mechanism; 61. Reciprocating screw; 62. Threaded block; 63. Guide rail; 7. Hopper; 8. Belt drive assembly two; 9. Impurity removal mechanism; 91. Rotating shaft; 92. Fan blade; 93. Fixed shell; 10. Stop block; 11. Slider; 12. Slide rail; 13. Feed chute; 14. Guide plate; 15. Receiving box; 16. Cylinder; 17. Baffle. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Trichosanthes kirilowii is a traditional Chinese medicinal herb, with its fruit, roots, and seeds all possessing medicinal value, and market demand continues to grow. In large-scale cultivation of Trichosanthes kirilowii, seed quality directly affects germination rate, seedling growth, and subsequent yield. Traditional manual seed selection is time-consuming, labor-intensive, and heavily influenced by subjective judgment, making it difficult to meet the high-efficiency and precise seedling requirements of modern agriculture. Therefore, developing automated and intelligent seed selection devices has become a key step in improving the industrialization level of Trichosanthes kirilowii cultivation.

[0025] Example 1:

[0026] Given the shortcomings of existing technologies, such as poor screening effectiveness and low efficiency, please refer to... Figures 1-4This embodiment provides a seed screening device for Trichosanthes kirilowii seedling cultivation, which allows seeds to be evenly dispersed and fall onto the entire area of ​​the screen 2, increasing the coverage rate from 60%-70% in traditional equipment to over 95%. This avoids seed accumulation in the center of the screen 2, reduces missed screenings and repeated screenings, and achieves higher screening accuracy. The device includes a frame 1, with the screen 2 movably mounted inside the frame 1. A vibration mechanism 3 is rotatably connected to the bottom of the screen 2 and mounted on the inner side of the frame 1. One end of the vibration mechanism 3 is fixedly connected to a drive motor 4 mounted on the side wall of the frame 1. A hopper 7 is located above the screen 2, and a moving mechanism 6 is fixedly mounted on the side wall of the hopper 7 and mounted on the inner side of the frame 1. The moving mechanism 6 is connected to the vibrating mechanism 3 via belt drive assembly 5. Below the screen 2, there is a cleaning mechanism 9 fixed to the inside of the frame 1. The cleaning mechanism 9 is connected to the vibrating mechanism 3 via belt drive assembly 8. The vibrating mechanism 3, the moving mechanism 6 and the cleaning mechanism 9 are driven simultaneously by the drive motor 4, which reduces the number of power components, simplifies the structure and reduces costs. Vibration, feeding and cleaning are carried out synchronously, which improves the efficiency of the entire screening process. When in use, the seeds are put into the hopper 7, and then the drive motor 4 is started to make the vibrating mechanism 3, the moving mechanism 6 and the cleaning mechanism 9 run synchronously, so as to carry out the screening work.

[0027] In traditional systems, the hopper 7 remains stationary, causing seeds to concentrate in the center of the screen 2, leading to problems such as accumulation, leakage, and blockage. For solutions to this problem, please refer to [the relevant documentation / reference]. Figure 3 The moving mechanism 6 includes a guide rail 63 fixed to the inner side of the frame 1. A threaded block 62 fixed to the side wall of the hopper 7 is slidably disposed in the guide rail 63. The threaded block 62 is screw-driven to a reciprocating screw 61. The reciprocating screw 61 is rotatably connected to the frame 1. One end of the reciprocating screw 61 is driven to the vibration mechanism 3 via a belt drive assembly 5. The reciprocating screw 61 drives the hopper 7 to move laterally back and forth along the guide rail 63, so that the seeds are evenly distributed to the entire area of ​​the screen 2, solving the problem of insufficient screening caused by accumulation. The belt drive assembly 5 drives the reciprocating screw 61 to rotate, which can form a mechanical linkage with the vibration mechanism 3. No additional motor is needed to drive the hopper 7, which can reduce energy consumption and make the structure compact.

[0028] Traditional vibrating screens often use eccentric wheels or a single connecting rod 32 for drive, resulting in uneven vibration amplitude of the screen 2 and poor screening effect in the edge area of ​​the screen 2. For this problem, please refer to... Figure 3 The vibration mechanism 3 includes a crankshaft 31 rotatably connected to the inner side of the frame 1. One end of the crankshaft 31 is fixedly connected to the output shaft of the drive motor 4. Two connecting rods 32 are hinged on the crankshaft 31, and a fixing plate 33 is hinged to the top of each of the two connecting rods 32. The fixing plate 33 is fixedly connected to the bottom of the screen 2. The crankshaft 31 drives the bottom of the screen 2 to vibrate evenly through the two connecting rods 32, avoiding the tilting of the screen 2 or insufficient local amplitude caused by the traditional single connecting rod 32, and improving the screening uniformity.

[0029] The presence of impurities such as soil, weeds, and twigs in Trichosanthes kirilowii seeds affects seed purity. For this issue, please refer to [link / reference needed]. Figure 3 The impurity removal mechanism 9 includes a fixed shell 93 fixed to the inner side of the frame 1. A rotating shaft 91 is rotatably connected inside the fixed shell 93. One end of the rotating shaft 91 is connected to the vibration mechanism 3 via a belt drive assembly 2. Multiple fan blades 92 arranged in a ring array are fixed on the outer wall of the rotating shaft 91. The vibration of the screen 2 is linked with the impurity removal mechanism 9 via the belt drive assembly 2, causing the fan blades 92 to rotate and generate outward airflow, thereby removing impurities such as soil, weeds, and branches from the seeds. At the same time, some shriveled seeds can also be separated by airflow to improve seed purity.

[0030] Furthermore, two sets of cylinders 16 are installed at the bottom of the hopper 7, and each set of cylinders 16 is fixedly connected to a baffle 17 at the bottom of the hopper 7; the movement of the baffle 17 can be controlled by the operation of the cylinders 16, thereby realizing the discharge of materials.

[0031] When the seeds fall as the screen 2 vibrates, they tend to fall off from the sides of the screen 2. To address this issue, two symmetrically arranged baffles 10 are fixed on the surface of the screen 2 near the bottom. The baffles 10 gather the seeds to the center, allowing all the seeds to fall into the feed trough 13 and reducing leakage.

[0032] Furthermore, two sliders 11 are fixed on the side wall of the screen 2 near the bottom, and the two sliders 11 are respectively slidably mounted on two slide rails 12, both of which are fixed to the inner wall of the frame 1; through the cooperation of the sliders 11 and the slide rails 12, the screen 2 vibrates more smoothly.

[0033] Furthermore, a feeding trough 13 is fixedly provided on one side of the frame 1 near the bottom of the screen 2; the feeding trough 13 can collect the screened seeds and drop them from one side for easy collection, and a guide plate 14 is fixedly provided inside the frame 1 directly below the screen 2. The guide plate 14 is inclined, and a receiving box 15 is provided on one side below the guide plate 14; the screened seeds and impurities are collected into the receiving box 15 through the guide plate 14 for easy removal and processing.

[0034] It should be noted that the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A seed screening device for Trichosanthes kirilowii seedling cultivation, comprising a frame (1), characterized in that: A screen (2) is movably installed inside the frame (1). A vibration mechanism (3) is rotatably connected to the bottom of the screen (2) and connected to the inside of the frame (1). One end of the vibration mechanism (3) is fixedly connected to a drive motor (4) installed on the side wall of the frame (1). A hopper (7) is provided above the screen (2). A moving mechanism (6) is fixedly connected to the inside of the frame (1) on the side wall of the hopper (7). The moving mechanism (6) is connected to the vibration mechanism (3) via a belt drive assembly (5). A cleaning mechanism (9) is fixedly connected to the inside of the frame (1) below the screen (2). The cleaning mechanism (9) is connected to the vibration mechanism (3) via a belt drive assembly (8). The moving mechanism (6) includes a guide rail (63) fixed to the inside of the frame (1). A threaded block (62) fixed to the side wall of the hopper (7) is slidably arranged in the guide rail (63). The threaded block (62) is screw-driven and connected to the reciprocating screw (61). The reciprocating screw (61) is rotatably connected to the frame (1). One end of the reciprocating screw (61) is driven and connected to the vibration mechanism (3) through a belt drive assembly (5).

2. The seed screening device for Trichosanthes kirilowii seedling cultivation according to claim 1, characterized in that: The vibration mechanism (3) includes a crankshaft (31) rotatably connected to the inside of the frame (1). One end of the crankshaft (31) is fixedly connected to the output shaft of the drive motor (4). Two connecting rods (32) are hinged on the crankshaft (31), and a fixing plate (33) is hinged to the top of each of the two connecting rods (32). The fixing plate (33) is fixedly connected to the bottom of the screen (2).

3. The seed screening device for Trichosanthes kirilowii seedling cultivation according to claim 1, characterized in that: The impurity removal mechanism (9) includes a fixed shell (93) fixed inside the frame (1), a rotating shaft (91) is rotatably connected inside the fixed shell (93), one end of the rotating shaft (91) is connected to the vibration mechanism (3) through the belt drive assembly (8), and multiple fan blades (92) arranged in a ring array are fixed on the outer wall of the rotating shaft (91).

4. The seed screening device for Trichosanthes kirilowii seedling cultivation according to claim 1, characterized in that: Two sets of cylinders (16) are installed at the bottom of the hopper (7), and baffles (17) that are movably connected to the bottom of the hopper (7) are fixed on both sets of cylinders (16).

5. The seed screening device for Trichosanthes kirilowii seedling cultivation according to claim 1, characterized in that: The screen (2) has two symmetrically arranged baffles (10) fixed on its surface near the bottom.

6. The seed screening device for Trichosanthes kirilowii seedling cultivation according to claim 1, characterized in that: Two sliders (11) are fixed on the side wall near the bottom of the screen (2), and the two sliders (11) are respectively slidably mounted on two slide rails (12), and the two slide rails (12) are fixed to the inner wall of the frame (1).

7. The seed screening device for Trichosanthes kirilowii seedling cultivation according to claim 1, characterized in that: The frame (1) is fixed with a feeding chute (13) on one side near the bottom of the screen (2).

8. The seed screening device for Trichosanthes kirilowii seedling cultivation according to claim 1, characterized in that: The frame (1) is fixed inside with a guide plate (14) located directly below the screen (2). The guide plate (14) is inclined, and a receiving box (15) is provided on one side below the guide plate (14).

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