Seed sorting equipment

Abstract

The utility model discloses seed sorting equipment which comprises a machine frame, a spreading device arranged on the machine frame and a screening device used for receiving seeds spread by the spreading device and screening the seeds. The screening device is characterized by comprising a screening frame, an elastic element arranged between the screening frame and the rack, a vibration motor fixed to the screening frame and a screening plate arranged on the screening frame in the length direction of the screening frame. The two pressing plates are used for pressing the two sides of the screen plate on the screening frame, and the lock catches are arranged between the pressing plates and the screening frame. The seed screening device has the advantages that the sieve plate is fixed in a pressing mode, the matched sieve plate can be conveniently replaced when different seeds are screened, convenience and rapidness are achieved, and efficiency is improved; 2, the bouncy ball placing frame is arranged, so that the sorting effect is improved; a sealing plate is designed, and seeds are prevented from being separated from the sieve plate.

Description

Technical Field

[0001] This utility model relates to the field of screening equipment technology, and in particular to a seed sorting device. Background Technology

[0002] Seed quality directly affects the final harvest. Currently, multi-stage vibrating screens are used for seed screening. Because different seeds have different shapes (e.g., cucumber seeds are spindle-shaped, and kidney bean seeds are oval), sieve plates with different mesh sizes are needed to screen the appropriate seeds. In existing technologies, sieve plates often have a fixed structure, which is inconvenient to replace and affects the efficiency of screening different seeds. Summary of the Invention

[0003] This invention provides a seed sorting device to solve the above problems. The sieve plate is fixed on the screening frame by pressing, and the sieve plate can be easily replaced when screening different seeds.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a seed sorting device, including a frame, a spreading device disposed on the frame, and a screening device for receiving the seeds spread by the spreading device and screening the seeds. The key is that the screening device includes a screening frame, an elastic element disposed between the screening frame and the frame, a vibration motor fixed on the screening frame, a sieve plate disposed on the screening frame along the length direction of the screening frame, two pressure plates for pressing the two sides of the sieve plate against the screening frame, and a locking buckle disposed between each pressure plate and the screening frame.

[0005] Furthermore, screen plate supports are provided on one or both sides of the crossbeam within the screening frame, and the installation height of multiple screen plate supports decreases sequentially along the screening direction. A screen plate is provided above each screen plate support, and a rubber pad is provided between the pressure plate and the screen plate.

[0006] Furthermore, a bouncy ball placement frame is provided below each sieve plate.

[0007] Furthermore, a partition plate for limiting the sieve plate is provided above the crossbeam.

[0008] Furthermore, an inverted V-shaped sealing plate is provided above the rubber pad, and the two ends of the sealing plate are limited between the pressure plate and the rubber pad by means of a limiting plate.

[0009] Furthermore, a support frame is provided on the inner side of the sealing plate.

[0010] Furthermore, a baffle is provided at the discharge end of the screening frame to limit the pressure plate.

[0011] Furthermore, a sealing cover and a matching hydraulic rod are provided on the screening frame, and the two ends of the hydraulic rod are respectively hinged to the screening frame and the sealing cover.

[0012] Furthermore, the frame is provided with multiple receiving boxes, which are located below the discharge end of the screening frame and below the discharge port of each screen plate on the screening frame.

[0013] Furthermore, the material spreading device includes a belt conveyor and a material trough mounted on the frame, wherein the outlet of the material trough is arranged along the width direction of the belt in the belt conveyor and is spaced apart from the belt.

[0014] Furthermore, an air separation device is provided at the feed inlet of the screening device.

[0015] The beneficial effects of this utility model are: 1. The sieve plate is fixed by pressing, and the matching sieve plate can be easily replaced when screening different seeds, which is convenient, quick and efficient; 2. An elastic ball placement frame is set up to increase the sorting effect; 3. A sealing plate is designed to prevent seeds from falling off the sieve plate. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the seed sorting equipment of this utility model;

[0017] Figure 2 yes Figure 1 A schematic diagram of the structure after removing the sealing cap and hydraulic rod;

[0018] Figure 3 This is a schematic diagram showing the connection between the material spreading device and the air separation device and the frame in the seed sorting equipment of this utility model;

[0019] Figure 4 This is a schematic diagram of the screening device in the seed sorting equipment of this utility model;

[0020] Figure 5 yes Figure 4 A schematic diagram of the structure after removing the sieve plate;

[0021] Figure 6 yes Figure 4 A schematic diagram of the structure after removing the sieve plate and the elastic ball frame;

[0022] Figure 7 This is a schematic diagram of the sealing plate in the seed sorting equipment of this utility model;

[0023] Figure 8 This is another structural schematic diagram of the sealing plate in the seed sorting equipment of this utility model.

[0024] In the attached diagram, 1. Frame, 1-1. Positioning tube, 2. Screening frame, 2-1. Crossbeam, 3. Elastic element, 4. Vibration motor, 5. Pressure plate, 6. Lock, 7. Screen plate, 8. Screen plate support plate, 9. Rubber pad, 10. Elastic ball placement frame, 11. Partition plate, 12. Support frame, 13. Sealing plate, 14. Baffle, 15. Limiting plate, 16. Sealing cover, 17. Hydraulic rod, 18. Receiving box, 19. Belt conveyor, 19-1. Belt, 20. Material trough, 20-1. Adjusting plate, 21. Air separator, 21-1. Air nozzle, 22. Gathering plate, 23. Telescopic sleeve. Detailed Implementation

[0025] See appendix Figure 1-8 This utility model provides a seed sorting device, including a frame 1, a spreading device disposed on the frame 1, and a screening device for receiving seeds after spreading by the spreading device and screening the seeds.

[0026] See appendix Figure 1-3 The aforementioned material spreading device includes a belt conveyor 19 and a material trough 20 mounted on the frame 1. The outlet of the material trough 20 is positioned along the width of the belt in the belt conveyor 19 and is spaced apart from the belt 19-1. The material trough 20 is connected to a positioning tube 1-1 on the frame 1 via a telescopic sleeve 23. A set screw is provided on the positioning tube 1-1 to facilitate adjustment and positioning of the gap between the bottom of the material trough 20 and the belt 19-1.

[0027] An adjusting plate 20-1 is provided at the discharge end of the trough 20. The adjusting plate 20-1 has a vertical groove. The adjusting plate 20-1 is fixed to the trough 20 by adjusting bolts that pass through the groove and are threadedly connected to the trough 20. By adjusting the gap between the adjusting plate 20-1 and the belt 19-1, as well as the gap between the bottom of the trough 20 and the belt 19-1, the purpose of evenly spreading different seeds on the belt 19-1 can be achieved.

[0028] Screening device embodiment 1: See appendix Figure 4In this embodiment, the screening device includes a screening frame 2, elastic elements 3 disposed between the screening frame 2 and the frame 1, two vibration motors 4 respectively fixed on both sides of the screening frame 2, a sieve plate 7 disposed on the screening frame 2 along the length of the screening frame 2, two pressure plates 5 for pressing the two sides of the sieve plate 7 against the screening frame 2, and multiple latches 6 disposed between each pressure plate 5 and the screening frame 2. Two elastic elements 3 are disposed on each side of the screening frame 2, and these can be springs or other components. In this embodiment, there are three sieve plates 7, each with different sieve hole sizes to separate seeds of different sizes. Alternatively, there can be a single sieve plate 7 with sieve holes of different sizes. Multiple slotted holes for mounting the latches 6 are provided on the screening frame 2 to facilitate the uniform transmission of pressure force to each sieve plate 7 via the pressure plates 5. The hooks in the latches 6 are connected to the pressure plates 5 and pass through the slotted holes on the outside of the screening frame 2. The handles, fixing seats, and other components in the latches 6 are disposed on the screening frame 2. By designing components such as pressure plate 5, locking buckle 6, and sieve plate 7, sieve plate 7 can be easily replaced to suit the sorting of different seeds.

[0029] Screening device embodiment 2: See appendix Figure 6-8 In this embodiment, sieve plate supports 8 are provided on one or both sides of the crossbeam 2-1 inside the screening frame 2. The installation height of multiple sieve plate supports 8 decreases sequentially along the screening direction. A sieve plate 7 is provided above each sieve plate support 8, and a rubber pad 9 is provided between the pressure plate 5 and the sieve plate 7. The stepped design allows the seeds to move along the length of the frame under the action of vibration, which is also beneficial for screening.

[0030] A partition 11 is provided above the crossbeam 2-1 to limit the screen plate 7, so as to limit one or both sides of the screen plate 7.

[0031] During seed screening, as the height of the sieve plate 7 gradually decreases and the sieve plate 7 acts as a guide, the seeds jump higher and higher on the sieve plate 7. To prevent seeds from scattering outside the screening frame 2, an inverted V-shaped sealing plate 13 is provided above the rubber pad 9. Both ends of the sealing plate 13 are equipped with limiting plates 15, which limit the seeds between the pressure plate 5 and the rubber pad 9. Because the sealing plate 13 is relatively thin, a support frame 12 is provided on its inner side. The rubber pad 9 is fixed to the limiting plates 15 and has grooves that mate with the partition plate 11. A handle is provided on the sealing plate 13 to facilitate removal when replacing the sieve plate 7. Furthermore, the sealing plate 13 also serves to limit the inner side of the pressure plate 5.

[0032] Screening device embodiment three: See appendix Figure 6Unlike Embodiment 2, in this embodiment, each sieve plate 7 is provided with a bouncy ball placement frame 10 below it, and a bouncy ball is placed in the placement frame. The bouncy ball can provide better up-and-down bouncing action for the seeds on the sieve plate 7 during screening, so as to achieve a better screening effect.

[0033] Screening device embodiment four: See appendix Figure 1 In this embodiment, a sealing cover 16 and a matching hydraulic rod 17 are provided on the screening frame 2. The two ends of the hydraulic rod 17 are hinged to the screening frame 2 and the sealing cover 16, respectively. An observation hole is provided on the sealing cover 16, and an acrylic plate is provided at the observation hole to facilitate observation of the internal state.

[0034] In the above embodiment, the inner side of the pressure plate 5 along its length is limited by the inner end of the screening frame 2, and the outer side is limited by the baffle 14 set at the discharge end of the screening frame 2.

[0035] Multiple receiving boxes 18 are provided on the frame 1. The multiple receiving boxes 18 are located below the discharge end of the screening frame 2 and the discharge port on the screening frame 2 located below each screen plate 7.

[0036] In addition, see appendix Figure 1-3 An air separation device 21 can also be installed at the feed inlet of the screening device. The air separation device 21 has two air nozzles to remove shriveled seeds from the seeds by means of negative pressure. A gathering plate 22 is provided on the pressure plate 5 to gather the seeds on the sieve plate 7 into the effective area of ​​the air nozzles 21-1 to achieve the best air separation effect.

[0037] The working process of the seed sorting equipment of this utility model is as follows: 1. Start the belt conveyor 19, the air classifier 21, and the vibrating motor 4. 2. Add the seeds to be sorted into the trough 20. 3. The seeds to be sorted are evenly spread on the belt 19-1 through the gap between the trough 20 and the belt 19-1 and move with the belt until they fall onto the first screen plate 7. 4. Under the action of the vibrating motor 4, the seeds move along the length of the screening frame 2. When passing through the air classifier 21, shriveled seeds can be removed. When passing through each screen plate 7, seeds of different sizes are screened according to the size of the sieve holes in the screen plate 7 and finally collected in the corresponding collection box 18. The largest seeds are collected in the collection box 18 through the discharge port of the screening frame 2.

[0038] When it is necessary to replace the sieve plate 7 to sort different seeds, release the pressure plate 5 by using the lock 6. Remove the pressure plate 5 and the sealing plate 13, replace the sieve plate 7, and then reinstall the sealing plate 13 and the pressure plate 5.

[0039] Finally, it is necessary to note that the above content is only used to help understand the technical solution of the present invention and should not be construed as a limitation on the scope of protection of the present invention; any non-essential improvements and adjustments made by those skilled in the art based on the above content of the present invention are all within the scope of protection claimed by the present invention.

Claims

1. A seed sorting apparatus comprising a frame (1) and a spreading device and a screening device for receiving and screening seeds spread by the spreading device, characterised in that: The screening device comprises a screening frame (2), an elastic element (3) arranged between the screening frame (2) and the rack (1), a vibration motor (4) fixed on the screening frame (2), a screen plate (7) arranged on the screening frame (2) along the length direction of the screening frame (2), two pressing plates (5) for pressing the screen plate (7) on both sides of the screening frame (2), and a lock buckle (6) arranged between each pressing plate (5) and the screening frame (2).

2. The seed sorting apparatus of claim 1, wherein: A screen plate supporting plate (8) is arranged on one side or both sides of the cross beam (2-1) in the screening frame (2), a plurality of screen plate supporting plates (8) are arranged in sequence along the screening direction and the installation height is lowered, a screen plate (7) is arranged above each screen plate supporting plate (8), and a rubber pad (9) is arranged between the gap between the pressing plate (5) and the screen plate (7).

3. The seed sorting apparatus of claim 2, wherein: An elastic ball placing frame (10) is arranged below each screen plate (7).

4. The seed sorting apparatus of claim 2, wherein: A partition plate (11) for limiting the screen plate (7) is arranged above the cross beam (2-1).

5. The seed sorting apparatus of claim 2, wherein: A reverse V-shaped sealing plate (13) is arranged above the rubber pad (9), and the two ends of the sealing plate (13) are limited between the pressing plate (5) and the rubber pad (9) by means of a limiting plate (15).

6. The seed sorting apparatus of claim 5, wherein: A supporting frame (12) is arranged on the inner side of the sealing plate (13).

7. The seed sorting apparatus of claim 1, wherein: A sealing cover (16) and a matched hydraulic rod (17) are arranged on the screening frame (2), and the two ends of the hydraulic rod (17) are respectively hinged to the screening frame (2) and the sealing cover (16).

8. The seed sorting apparatus of claim 1, wherein: A plurality of material collecting boxes (18) are arranged on the rack (1), and the plurality of material collecting boxes (18) are respectively arranged below the discharge end of the screening frame (2), and below the discharging port of each screen plate (7) on the screening frame (2).

9. The seed sorting apparatus of any of claims 1-8, wherein: The material laying device comprises a belt conveyor (19) and a material chute (20) arranged on the rack (1), and the discharge port of the material chute (20) is arranged along the width direction of the belt of the belt conveyor (19) and is arranged in a gap with the belt (19-1).

10. The seed sorting apparatus of any of claims 1-8, wherein: An air separation device (21) is arranged at the material inlet of the screening device.

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