Multilayer vibrating screen sorting device of buckwheat seed sorting machine
By designing components such as the feed box, discharge hole, guide tube, diverter plate, stirring rod, and impact block of the multi-layer vibrating screening device, the problems of uneven screening and clogging of buckwheat seeds were solved, the screening accuracy and efficiency were improved, and seed damage and operation difficulty were reduced.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YANAN INST OF AGRI SCI
- Filing Date
- 2025-06-19
- Publication Date
- 2026-06-12
Smart Images

Figure CN224346375U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of agricultural machinery technology, specifically a multi-layer vibrating sieve device for buckwheat seed sorting machines. Background Technology
[0002] Buckwheat is an ancient short-cycle coarse grain crop belonging to the Polygonaceae family. It is not a true cereal grain, but because its seeds are rich in starch and nutrients, it is often classified as a "false grain". Its seeds are triangular pyramidal in shape and have a hard outer shell.
[0003] Buckwheat seeds usually contain impurities after harvest, and the size, plumpness, and integrity of the seeds vary. In order to improve seed quality and meet processing requirements, multi-layer vibrating screening devices must be used for grading and screening.
[0004] Through long-term observation, it has been found that existing screening devices typically involve directly pouring seeds into the filter plate of the screening device. This process easily leads to uneven distribution of seeds, making it difficult to effectively utilize the edges of the filter plate, resulting in poor separation efficiency. Therefore, a multi-layer vibrating screening device for buckwheat seed sorting is proposed to address the above problems. Utility Model Content
[0005] In order to overcome the shortcomings of the prior art and solve at least one of the technical problems mentioned in the background art, this utility model proposes a multi-layer vibrating sieve device for buckwheat seed sorting machine.
[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: The multi-layer vibrating screening device of the buckwheat seed sorting machine of this utility model includes a screening machine body; a filter plate is installed inside the screening machine body; two sets of mounting brackets are fixedly connected to the top of the screening machine body; a feed box is fixedly connected to the top of the mounting brackets, and the feed box is elliptical; multiple sets of discharge holes are opened on the inner wall of the feed box; guide tubes are fixedly connected to the inner walls of the two sets of discharge holes; a diversion plate is fixedly connected to the inner wall of the screening machine body, and the multiple sets of discharge holes are located at the top of the diversion plate, and the two sets of guide tubes are located at the top of the diversion plate.
[0007] Preferably, a fixing member is fixedly connected to the top of the mounting frame; a rotating shaft is rotatably connected to the end of the fixing member; a stirring rod is rotatably connected to the outer wall of the rotating shaft, and the stirring rod is arc-shaped and located on the inner wall of the feeding box; a protective pad is fixedly connected to the outer wall of the stirring rod; an elastic rope is fixedly connected to the end of the stirring rod; and a clamping rod is fixedly connected to the top of the feeding box, and the clamping rod is located near the side of the elastic rope.
[0008] Preferably, a rotating rod is connected to the inner wall of the mounting frame via a torsion spring; an impact block is fixed to the end of the rotating rod, and the impact block is located near the bottom of the feed box; a counterweight is provided in the middle of the rotating rod.
[0009] Preferably, a screw groove is provided in the middle of the rotating rod; an adjusting block is threadedly connected to the outer wall of the screw groove, and the counterweight and the adjusting block are not necessarily rotatably connected.
[0010] Preferably, a baffle plate is fixedly connected to the inner wall of the mounting bracket; a limiting member is fixedly connected to the bottom of the baffle plate, and the limiting member is located near the impact block.
[0011] Preferably, the impact block has a top block threadedly connected to its end.
[0012] The beneficial effects of this utility model are:
[0013] This utility model provides a multi-layer vibrating screening device for buckwheat seed sorting machine. Through the action of multiple sets of feeding holes and inclined guide tubes, it can achieve the effect of seed diversion, reducing the problem of directly pouring seeds onto the filter plate and the filter plate at the edge being difficult to utilize effectively, thus improving the accuracy of seed screening. At the same time, under the action of the unfolding diversion plate, it can limit the falling seeds and reduce the phenomenon of deviation.
[0014] This utility model provides a multi-layer vibrating sieve device for buckwheat seed sorting machine. By rotating the stirring rod, it can improve the problem of seeds being blocked and difficult for workers to clear. The protective pad can reduce the damage caused by subsequent contact with the seeds. At the same time, under the action of the clamping rod, the stirring rod can be retracted after pulling the elastic rope, thereby reducing the obstruction of some seeds by the unfolded stirring rod. Attached Figure Description
[0015] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:
[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0017] Figure 2 This is a schematic diagram of the feed box structure in this utility model;
[0018] Figure 3 This is a schematic diagram of the mounting bracket structure in this utility model;
[0019] Figure 4 This is a schematic diagram of the impact block structure in this utility model.
[0020] Legend:
[0021] 1. Screening machine body; 11. Filter plate; 12. Mounting frame; 13. Feed box; 14. Discharge hole; 15. Guide tube; 16. Diverter plate; 2. Fixing parts; 21. Rotating shaft; 22. Agitator rod; 23. Protective pad; 24. Elastic rope; 25. Clamping rod; 3. Rotating rod; 31. Impact block; 32. Counterweight; 4. Screw groove; 41. Adjusting block; 5. Baffle plate; 51. Limiting parts; 6. Top block. Detailed Implementation
[0022] 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 skilled in the art without creative effort are within the protection scope of the present utility model.
[0023] Specific implementation examples are given below.
[0024] like Figure 1-4 As shown, the multi-layer vibrating screening device of the buckwheat seed sorting machine includes a screening machine body 1; a filter plate 11 is installed inside the screening machine body 1; two sets of mounting brackets 12 are fixedly connected to the top of the screening machine body 1; a feed box 13 is fixedly connected to the top of the mounting brackets 12, and the feed box 13 is elliptical; multiple sets of discharge holes 14 are opened on the inner wall of the feed box 13; guide tubes 15 are fixedly connected to the inner walls of the two sets of discharge holes 14; a diversion plate 16 is fixedly connected to the inner wall of the screening machine body 1, and the multiple sets of discharge holes 14 are located at the top of the diversion plate 16, and the two sets of guide tubes 15 are located at the top of the diversion plate 16; during operation, after the screening machine body 1 is installed in the designated working area, the seeds to be sorted are poured into the inner wall of the feed box 13, and the feed box 13 tilts its inner wall to sort the seeds. The seeds are centered at the bottom and transferred downwards by multiple sets of feed holes 14. Two sets of inclined guide tubes 15 can transfer some seeds to the edge of the filter plate 11. After the seeds fall onto the filter plate 11, they are separated by the unfolded diversion plate 16. When the main body of the screening machine 1 is working, the vibration generated can screen the seeds. This step, under the action of multiple sets of feed holes 14 and inclined guide tubes 15, can achieve the effect of diverting the seeds, reducing the problem of directly pouring the seeds onto the filter plate 11 and making it difficult to effectively utilize the filter plate 11 at the edge. This improves the accuracy of seed screening. At the same time, under the action of the unfolded diversion plate 16, the newly fallen seeds can be limited, reducing the phenomenon of deviation.
[0025] like Figure 1-4As shown, a fixing member 2 is fixedly connected to the top of the mounting frame 12; a rotating shaft 21 is rotatably connected to the end of the fixing member 2; a stirring rod 22 is rotatably connected to the outer wall of the rotating shaft 21, and the stirring rod 22 is arc-shaped and located on the inner wall of the feed box 13; a protective pad 23 is fixedly connected to the outer wall of the stirring rod 22; an elastic rope 24 is fixedly connected to the end of the stirring rod 22; a clamping rod 25 is fixedly connected to the top of the feed box 13, and the clamping rod 25 is located near the side of the elastic rope 24; during operation, because the fixing member 2 is set at the top of the mounting frame 12, when the worker needs to clear the seeds in the feed box 13, the worker can pull the elastic rope 24 outward, so that it has The elastic rope 24 is detached from the clamping rod 25, allowing the stirring rod 22 to be held by both ends and stirred. This allows the movable stirring rod 22, along with the protective pad 23, to reposition the material stuck at the top of the feeding hole 14 until the seeds are fed out stably. This step, by rotating the stirring rod 22, can improve the problem of seeds being blocked, which is difficult for workers to clear. The protective pad 23 can also reduce damage caused by contact with the seeds. At the same time, the clamping rod 25 can pull the elastic rope 24 to retract the stirring rod 22, thereby reducing the obstruction of some seeds by the extended stirring rod 22.
[0026] like Figure 1-4 As shown, a rotating rod 3 is connected to the inner wall of the mounting frame 12 by a torsion spring; an impact block 31 is fixed to the end of the rotating rod 3, and the impact block 31 is located near the bottom of the feed box 13; a counterweight 32 is provided in the middle of the rotating rod 3; during operation, by providing a torsion rotating rod 3 at the end of the mounting frame 12, and when the subsequent screening machine body 1 is working, under the action of the up and down vibration, the impact block 31 can be separated from the feed box 13 first, and then, with the action of the torsion of the rotating rod 3, the impact block 31 strikes the outer wall of the feed box 13 again, and the suspended counterweight 32 can provide downward pressure. This step, under the action of the frequent impact of the impact block 31, can accelerate the feeding speed of the material in the feed box 13 and reduce the phenomenon of some material getting stuck. At the same time, the counterweight 32 can increase the extent to which the impact block 31 is pulled apart, thereby increasing the impact force.
[0027] like Figure 1-4As shown, a screw groove 4 is provided in the middle of the rotating rod 3; an adjusting block 41 is threadedly connected to the outer wall of the screw groove 4, and the counterweight 32 and the adjusting block 41 are not necessarily rotatably connected; during operation, when the position of the counterweight 32 needs to be changed because a baffle plate 5 is provided on the outer wall of the rotating rod 3, the operator can rotate the adjusting block 41 so that the counterweight 32 gradually moves closer to or away from the position of the impact block 31 when the adjusting block 41 moves. This step changes the position of the counterweight 32, thereby changing the center of gravity at the end of the impact block 31, so as to adjust the impact force and frequency of the impact block 31.
[0028] like Figure 1-4 As shown, a baffle plate 5 is fixedly connected to the inner wall of the mounting frame 12; a limiting member 51 is fixedly connected to the bottom of the baffle plate 5, and the limiting member 51 is set on the side close to the impact block 31; during operation, by setting the baffle plate 5 on the inner wall of the mounting frame 12, the unfolded baffle plate 5 can block impurities falling from the outside, and when the impact block 31 rotates to reset, it can directly contact the inner wall of the limiting member 51. This step, under the action of unfolding the baffle plate 5, can improve the cleanliness of the inner wall of the screw groove 4, reduce the problem of large wear when the subsequent adjustment block 41 rotates, and, in conjunction with the limiting member 51, can improve the stability of the impact block 31 when resetting.
[0029] like Figure 1-4 As shown, the impact block 31 is threadedly connected to a top block 6 at its end. During operation, by providing a top block 6 at the end of the impact block 31, the top block 6 can make contact with the feed box 13 before the impact block 31 is impacted. The top block 6 can also be rotated for disassembly and replacement. This step, under the action of the top block 6, facilitates the subsequent maintenance of the end of the impact block 31 and increases the accuracy of the subsequent impact on the feed box 13.
[0030] Working Principle: After the screening machine body 1 is installed in the designated working area, the seeds to be sorted are poured into the inner wall of the feed box 13. The inclined inner wall of the feed box 13 centers the seeds at the bottom, and multiple sets of discharge holes 14 transfer them downwards. Two sets of inclined guide tubes 15 transfer some seeds to the edge of the filter plate 11. After the seeds fall onto the filter plate 11, they are separated by the unfolded diversion plate 16. During operation, the screening machine body 1, with its vibration, can screen the seeds. A fixing part 2 is installed at the top of the mounting frame 12. When the worker needs to clear the seeds in the feed box 13, they can pull the elastic rope 24 to disengage it from the clamping rod 25. Then, they can hold both ends of the stirring rod 22 and agitate it. The moving stirring rod 22, with the protective pad 23, can change the position of the material stuck at the top of the discharge hole 14 until the seeds are stably discharged. However, by providing a torsion bar 3 at the end of the mounting frame 12, when the main body 1 of the subsequent screening machine is working, under the action of vertical vibration, the impact block 31 can be separated from the feed box 13 first. Then, with the action of the torsion of the torsion bar 3, the impact block 31 will strike the outer wall of the feed box 13 again, and the suspended counterweight 32 can provide downward pressure. By providing a baffle plate 5 on the outer wall of the torsion bar 3, when it is necessary to change the position of the counterweight 32, the operator can rotate the adjusting block 41. This allows the counterweight 32 to gradually move closer to or further away from the impact block 31 as the adjusting block 41 moves. By providing a baffle 5 on the inner wall of the mounting frame 12, the unfolded baffle 5 can block impurities falling from the outside. When the impact block 31 rotates to reset, it can directly contact the inner wall of the limiting member 51. By providing a top block 6 at the end of the impact block 31, the top block 6 can contact the feed box 13 first during the impact process, and can also be rotated to disassemble and replace it later.
[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A multi-layer vibrating sieving device for a buckwheat seed sorting machine, comprising a sieving machine body (1); wherein a filter plate (11) is installed inside the sieving machine body (1); characterized in that: The main body (1) of the screening machine is fixedly connected to two sets of mounting brackets (12) at the top; the mounting brackets (12) are fixedly connected to the top of the feeding box (13), and the feeding box (13) is elliptical; the inner wall of the feeding box (13) is provided with multiple sets of discharge holes (14); the inner walls of the two sets of discharge holes (14) are fixedly connected to guide tubes (15); the inner wall of the main body (1) of the screening machine is fixedly connected to a diversion plate (16), and the multiple sets of discharge holes (14) are located at the top of the diversion plate (16), and the two sets of guide tubes (15) are located at the top of the diversion plate (16).
2. The multi-layer vibrating sieve device of the buckwheat seed sorting machine as described in claim 1, characterized in that: The mounting bracket (12) is fixedly connected to the top of a fixing member (2); the end of the fixing member (2) is rotatably connected to a rotating shaft (21); the outer wall of the rotating shaft (21) is rotatably connected to a stirring rod (22), and the stirring rod (22) is arc-shaped and located on the inner wall of the feed box (13); the outer wall of the stirring rod (22) is fixedly connected to a protective pad (23); the end of the stirring rod (22) is fixedly connected to an elastic rope (24); the top of the feed box (13) is fixedly connected to a clamping rod (25), and the clamping rod (25) is located on the side close to the elastic rope (24).
3. The multi-layer vibrating sieve device of the buckwheat seed sorting machine as described in claim 1, characterized in that: The mounting bracket (12) has a torsion spring connected to a rotating rod (3); an impact block (31) is fixed to the end of the rotating rod (3), and the impact block (31) is located near the bottom of the feed box (13); a counterweight (32) is provided in the middle of the rotating rod (3).
4. The multi-layer vibrating sieve device of the buckwheat seed sorting machine as described in claim 3, characterized in that: The rotating rod (3) has a threaded groove (4) in the middle; the outer wall of the threaded groove (4) is threaded with an adjusting block (41), and the counterweight (32) and the adjusting block (41) are not necessarily rotatably connected.
5. The multi-layer vibrating sieve device of the buckwheat seed sorting machine as described in claim 2, characterized in that: The mounting bracket (12) has a baffle plate (5) fixedly connected to its inner wall; the bottom of the baffle plate (5) is fixedly connected to a limiting member (51), and the limiting member (51) is set on the side close to the impact block (31).
6. The multi-layer vibrating sieve device of the buckwheat seed sorting machine as described in claim 3, characterized in that: The impact block (31) is threadedly connected to a top block (6) at its end.