Astragalus membranaceus seed pre-screening device

Abstract

The invention belongs to the technical field of astragalus membranaceus planting, and particularly relates to an astragalus membranaceus seed pre-screening device which comprises a screening box, a seed adding box is fixed to the right end of the upper side of the screening box, a seed adding opening is formed in the lower side of the seed adding box, and a discharging adjusting mechanism is arranged in the seed adding opening. According to the seed screening device, the seed discharging speed can be precisely controlled, seeds slowly fall to the upper end of the screening groove, the screening groove is driven by the vibration motor to shake, so that the seeds slowly fall, air flow is driven by the fan to move while the seeds fall, dust and some shell broken particles enter an air outlet pipe along with the air flow, and the seed screening effect is improved. A first filter screen on the side wall of the air outlet pipe is used for filtering; when a large amount of dust and shell broken particles are attached to the side wall of the first filter screen, the cleaning brush can be adjusted to make contact with the side wall of the first filter screen, the annular plate and the first filter screen are driven to rotate through the rotating mechanism, and impurities attached to the side wall of the first filter screen can be rapidly treated.

Description

Technical Field

[0001] This invention relates to the field of Astragalus cultivation technology, specifically to a pre-screening device for Astragalus seeds. Background Technology

[0002] Astragalus is a common Chinese medicinal herb with extremely high medicinal value. During its cultivation, seed quality and pretreatment are crucial for subsequent germination and growth. Astragalus seeds have a hard outer shell; without crushing and breaking the shell, they are difficult to germinate successfully. Effective crushing and breaking the shell improves the germination rate and survival rate, laying a foundation for good growth. After seed treatment, the seeds need to be screened to remove dust and outer shell particles. However, the existing screening devices still have the following technical problems when in use: Existing screening devices cannot effectively control the falling speed of Astragalus seeds when screening them, which affects the screening effect and makes it impossible to completely remove the broken shell particles and dust inside the seeds. Furthermore, after continuous use, the filter screen will accumulate a large amount of dust or broken shell particles, making it inconvenient to process quickly.

[0003] Therefore, a pre-screening device for Astragalus membranaceus seeds is proposed to solve the aforementioned problems. Summary of the Invention

[0004] The purpose of this invention is to provide a pre-screening device for Astragalus membranaceus seeds to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a pre-screening device for Astragalus seeds, comprising a screening box, a seed adding box fixed to the upper right end of the screening box, a seed adding port opened on the lower side of the seed adding box, and a feeding adjustment mechanism provided inside the seed adding port; A horizontal plate is fixed inside the screening box. Evenly arranged support springs are fixed on the upper side of the horizontal plate. The upper ends of the evenly arranged support springs are all fixed to a screening groove. A receiving groove is slidably connected to the lower front end of the screening box. Vibration motors are fixed on both the front and rear sides of the screening groove. An air inlet pipe is fixed to the lower left side of the screening box, and a fan is fixed inside the air inlet pipe. An air outlet pipe is fixed to the lower right side of the screening box. A moving mechanism is fixed to the upper end of the air outlet pipe on the right side of the screening box. A rotating mechanism is fixed to the lower end of the moving mechanism. An annular plate is fixed to the left end of the rotating mechanism. A first filter screen is fixed inside the annular plate. A fixing mechanism is fixed to the right side of the screening box at the lower end of the air outlet pipe, and a cleaning brush is fixed to the side wall of the fixing mechanism.

[0006] The feeding adjustment mechanism includes a sealing plate, which is slidably connected to the lower end of the seed adding box. A telescopic cylinder is fixed to the left side of the seed adding box, and a connecting plate is fixed to the left end of the telescopic cylinder. The right side of the connecting plate is fixedly connected to the left side of the sealing plate.

[0007] The lower end of the inner wall of the screening tank is fixed with evenly arranged baffles.

[0008] A second filter screen is fixed to the left end inside the air inlet pipe.

[0009] The moving mechanism includes a strip plate, the left side of which is fixedly connected to the right side of the screening box. A lead screw is rotatably connected inside the strip plate via a bearing. A first housing is fixed to the right side of the strip plate, and a first motor is fixed inside the first housing. The right end of the lead screw is fixedly connected to the output end of the first motor. A moving plate is threadedly connected to the wall of the lead screw, and the upper side of the moving plate is slidably connected to the upper end of the inner wall of the strip plate.

[0010] The rotating mechanism includes a second housing, which is fixedly connected to the right side of the movable plate. A second motor is fixed inside the second housing. A rotating rod is rotatably connected to the side wall of the movable plate. The right end of the rotating rod is fixedly connected to the output end of the second motor. A mounting bracket is fixed to the left end of the rotating rod. The left side of the mounting bracket is fixedly connected to the right side of the annular plate.

[0011] The fixing mechanism includes a threaded rod, the left end of which is fixedly connected to the right side of the screening box. A fixing ring is rotatably connected to the outside of the threaded rod. Both ends of the threaded rod wall located at the fixing ring are threadedly connected to fastening nuts. The cleaning brush is fixedly connected to the side wall of the fixing ring.

[0012] A support plate is fixed to the lower right side of the screening box, and a dust collection trough is placed on the upper end of the support plate.

[0013] Compared with the prior art, the beneficial effects of the present invention are: This application can precisely control the speed of seed feeding, causing it to fall slowly to the top of the screening tank. A vibration motor drives the screening tank to shake, thus causing the seeds to fall slowly. As the seeds fall, a fan drives airflow, causing dust and some shell fragments to enter the interior of the air outlet duct with the airflow and be filtered through the first filter screen on the side wall of the air outlet duct. When a large amount of dust and shell fragments are attached to the side wall of the first filter screen, the cleaning brush can be adjusted to contact the side wall of the first filter screen, and a rotating mechanism can drive the annular plate and the first filter screen to rotate, which can quickly remove the impurities attached to the side wall. Attached Figure Description

[0014] Figure 1This is a schematic diagram of the structure of the present invention; Figure 2 for Figure 1 A sectional view; Figure 3 for Figure 2 A magnified structural diagram of part A in the middle; Figure 4 This is a schematic diagram of the screening tank. Figure 5 for Figure 1 A magnified structural diagram of part B in the middle section; Figure 6 This is a schematic diagram of the moving mechanism and the rotating mechanism.

[0015] In the diagram: 1. Screening box, 2. Seed adding box, 3. Horizontal plate, 4. Support spring, 5. Screening trough, 6. Container trough, 7. Vibration motor, 8. Air inlet pipe, 9. Fan, 10. Air outlet pipe, 11. Annular plate, 12. First filter screen, 13. Cleaning brush, 14. Sealing plate, 15. Telescopic cylinder, 16. Connecting plate, 17. Baffle bar, 18. Second filter screen, 19. Strip plate, 20. Lead screw, 21. First motor, 22. Moving plate, 23. Second motor, 24. Rotating rod, 25. Mounting bracket, 26. Threaded rod, 27. Fixing ring, 28. Fastening nut, 29. Support plate, 30. Dust collection trough. Detailed Implementation

[0016] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention 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. Therefore, they should not be construed as limitations on this invention. Example 1

[0018] Please see Figure 1-6 The present invention provides a technical solution: A pre-screening device for Astragalus seeds includes a screening box 1, a seed adding box 2 fixed to the upper right end of the screening box 1, a seed adding port on the lower side of the seed adding box 2, and a feeding adjustment mechanism inside the seed adding port to adjust the feeding speed of the seeds. Inside the screening box 1, a horizontal plate 3 is fixed horizontally. On the upper side of the horizontal plate 3, evenly arranged support springs 4 are fixed. The upper ends of the evenly arranged support springs 4 are all fixed to the screening trough 5. The lower end of the front side of the screening box 1 is slidably connected to the receiving trough 6. Vibration motors 7 are fixed on the front and rear sides of the screening trough 5. When the seeds fall into the screening trough 5, the vibration motor 7 drives the screening trough to shake, causing the seeds to fall slowly. An air inlet pipe 8 is fixed to the lower left side of the screening box 1, and a fan 9 is fixed inside the air inlet pipe 8. An air outlet pipe 10 is fixed to the lower right side of the screening box 1. A moving mechanism is fixed to the upper end of the air outlet pipe 10 on the right side of the screening box 1. A rotating mechanism is fixed to the lower end of the moving mechanism. An annular plate 11 is fixed to the left end of the rotating mechanism. A first filter screen 12 is fixed inside the annular plate 11. A fixing mechanism is fixed on the right side of the screening box 1 at the lower end of the air outlet duct 10. A cleaning brush 13 is fixed on the side wall of the fixing mechanism. When a large amount of dust or seed shell particles accumulate on the side wall of the first filter screen 12 due to long-term filtration, the first filter screen 12 can be moved to the right and the left side of the first filter screen 12 can be treated by the cleaning brush 13.

[0019] The feeding adjustment mechanism includes a sealing plate 14, which is slidably connected to the lower end of the seed adding box 2. A telescopic cylinder 15 is fixed on the left side of the seed adding box 2, and a connecting plate 16 is fixed on the left end of the telescopic cylinder 15. The right side of the connecting plate 16 is fixedly connected to the left side of the sealing plate 14.

[0020] The lower end of the inner wall of the screening tank 5 is fixed with evenly arranged baffles 17. By setting the baffles 17, the blocking effect on the seeds can be increased and the falling speed of the seeds can be controlled. The cross-sectional shape of the baffles 17 is arc-shaped.

[0021] A second filter screen 18 is fixed at the left end inside the air inlet duct 8.

[0022] The moving mechanism includes a strip plate 19, the left side of which is fixedly connected to the right side of the screening box 1. A lead screw 20 is rotatably connected inside the strip plate 19 via a bearing. A first housing is fixed to the right side of the strip plate 19, and a first motor 21 is fixed inside the first housing. The right end of the lead screw 20 is fixedly connected to the output end of the first motor 21. A moving plate 22 is threadedly connected to the rod wall of the lead screw 20. The upper side of the moving plate 22 is slidably connected to the upper end of the inner wall of the strip plate 19. The first motor 21 is a forward and reverse reversible motor. The first motor 21 drives the lead screw 20 at the output end to rotate, and the lead screw 20 drives the moving plate 22 threadedly connected to the rod wall to move left and right.

[0023] The rotating mechanism includes a second housing, which is fixedly connected to the right side of the movable plate 22. A second motor 23 is fixed inside the second housing. A rotating rod 24 is rotatably connected to the side wall of the movable plate 22. The right end of the rotating rod 24 is fixedly connected to the output end of the second motor 23. A mounting bracket 25 is fixed to the left end of the rotating rod 24. The left side of the mounting bracket 25 is fixedly connected to the right side of the annular plate 11. When it is necessary to clean the dust attached to the side wall of the first filter screen 12 by cleaning the cleaning brush 13, the position of the cleaning brush 13 can be adjusted so that the right side of the cleaning brush 13 contacts the left side of the first filter screen 12. The rotating mechanism drives the annular plate 11 and the first filter screen 12 to rotate, thereby cleaning the first filter screen 12.

[0024] The fixing mechanism includes a threaded rod 26, the left end of which is fixedly connected to the right side of the screening box 1. A fixing ring 27 is rotatably connected to the outside of the threaded rod 26. Both ends of the threaded rod 26 are threadedly connected to fastening nuts 28. The cleaning brush 13 is fixedly connected to the side wall of the fixing ring 27. After the position of the cleaning brush 13 is adjusted, the fixing mechanism fixes and limits the cleaning brush 13.

[0025] A support plate 29 is fixed to the lower right side of the screening box 1, and a dust collection trough 30 is placed on the upper end of the support plate 29.

[0026] Working principle: In use, the seeds are poured into the seed adding box 2. By activating the telescopic cylinder 15, the telescopic cylinder 15 moves the sealing plate 14 on the side wall. The movement of the sealing plate 14 adjusts the seed feeding speed. The seeds fall into the screening tank 5. The vibration motor 7 drives the screening tank 5 to shake, causing the seeds to fall slowly. At the same time, the fan 9 drives the airflow. The airflow carries the dust and small particles of the outer shell mixed in the seeds into the air outlet pipe 10. The seeds are filtered by the first filter screen 12 inside the air outlet pipe 10, thereby effectively removing the dust and small particles of the outer shell from the seeds. After the first filter screen 12 has been used for a long time, the first motor 21 can be started. The first motor 21 drives the lead screw 20 to rotate. The lead screw 20 drives the moving plate 22, which is threaded to the rod wall, to move to the right. The moving plate 22 drives the annular plate 11 on the side wall and the first filter screen 12 to move to the right. The position of the cleaning brush 13 is adjusted so that the cleaning brush 13 rotates vertically and its right side contacts the left side of the first filter screen 12. The rotating mechanism drives the annular plate 11 and the first filter screen 12 to rotate, cleaning the dust accumulated on the left side of the first filter screen 12.

[0027] It should be noted that the electrical components mentioned in this invention have had their wiring harnesses combed according to actual conditions during manufacturing, so that the wiring harnesses will not be tangled or affect the operation. All standard parts used in this invention can be purchased from the market, and irregularly shaped parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The control method of this invention is through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming. It should be noted that the electrical components mentioned in this invention have been sorted according to the actual situation during manufacturing, so as not to cause the wire harness to become tangled or affect the operation. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0028] In the description of this invention, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description, and is not intended to 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 invention.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or basic characteristics. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of the invention is defined by the appended claims rather than the foregoing description. Therefore, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

[0030] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pre-screening device for Astragalus membranaceus seeds, comprising a screening box (1), characterized in that, The upper right side of the screening box (1) is fixed with a seed adding box (2), and the lower side of the seed adding box (2) is provided with a seed adding port. The inside of the seed adding port is provided with a feeding adjustment mechanism. The screening box (1) has a horizontal plate (3) fixed inside. The upper side of the horizontal plate (3) is fixed with evenly arranged support springs (4). The upper ends of the evenly arranged support springs (4) are all fixed with a screening groove (5). The lower end of the front side of the screening box (1) is slidably connected with a receiving groove (6). The front and rear sides of the screening groove (5) are both fixed with a vibration motor (7). An air inlet pipe (8) is fixed to the lower left side of the screening box (1), and a fan (9) is fixed inside the air inlet pipe (8). An air outlet pipe (10) is fixed to the lower right side of the screening box (1). A moving mechanism is fixed to the upper end of the air outlet pipe (10) on the right side of the screening box (1). A rotating mechanism is fixed to the lower end of the moving mechanism. An annular plate (11) is fixed to the left end of the rotating mechanism. A first filter screen (12) is fixed inside the annular plate (11). The right side of the screening box (1) is fixed to the lower end of the air outlet pipe (10), and a cleaning brush (13) is fixed to the side wall of the fixing mechanism.

2. The Astragalus seed pre-screening device according to claim 1, characterized in that: The feeding adjustment mechanism includes a sealing plate (14), which is slidably connected to the lower end of the seed adding box (2). A telescopic cylinder (15) is fixed on the left side of the seed adding box (2), and a connecting plate (16) is fixed on the left end of the telescopic cylinder (15). The right side of the connecting plate (16) is fixedly connected to the left side of the sealing plate (14).

3. The Astragalus seed pre-screening device according to claim 1, characterized in that: The lower end of the inner wall of the screening tank (5) is fixed with evenly arranged baffles (17).

4. The Astragalus seed pre-screening device according to claim 1, characterized in that: The left end of the air inlet pipe (8) is fixed with a second filter screen (18).

5. The Astragalus seed pre-screening device according to claim 1, characterized in that: The moving mechanism includes a strip plate (19), the left side of which is fixedly connected to the right side of the screening box (1), and a lead screw (20) is rotatably connected inside the strip plate (19) via a bearing. A first machine box is fixed to the right side of the strip plate (19), and a first motor (21) is fixed inside the first machine box. The right end of the lead screw (20) is fixedly connected to the output end of the first motor (21), and a moving plate (22) is threadedly connected to the rod wall of the lead screw (20). The upper side of the moving plate (22) is slidably connected to the upper end of the inner wall of the strip plate (19).

6. The Astragalus seed pre-screening device according to claim 5, characterized in that: The rotating mechanism includes a second housing, which is fixedly connected to the right side of the movable plate (22). A second motor (23) is fixed inside the second housing. A rotating rod (24) is rotatably connected to the side wall of the movable plate (22). The right end of the rotating rod (24) is fixedly connected to the output end of the second motor (23). A mounting bracket (25) is fixed to the left end of the rotating rod (24). The left side of the mounting bracket (25) is fixedly connected to the right side of the annular plate (11).

7. The Astragalus seed pre-screening device according to claim 1, characterized in that: The fixing mechanism includes a threaded rod (26), the left end of which is fixedly connected to the right side of the screening box (1), and a fixing ring (27) is rotatably connected to the outside of the threaded rod (26). The rod wall of the threaded rod (26) is threadedly connected to both ends of the fixing ring (27) with fastening nuts (28). The cleaning brush (13) is fixedly connected to the side wall of the fixing ring (27).

8. The Astragalus seed pre-screening device according to claim 1, characterized in that: A support plate (29) is fixed to the lower right side of the screening box (1), and a dust collection trough (30) is placed on the upper end of the support plate (29).

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