Seed cleaning and screening mechanism
Through the design of the lifting components and retaining plate, the problem of seeds falling without filtration in the seed screening device is solved, and batch feeding and screening are realized, which improves the screening efficiency and avoids seed accumulation and remnant.
Patent Information
- Application Number
- CN202422093599.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-28
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-08-28
AI Technical Summary
During the screening process of existing seed screening devices, the inclined screen cleaning mesh can easily cause some seeds to fall without being filtered by the screening mesh, resulting in inconvenience in screening, and frequent movement of the screen cleaning mesh is required to remove remaining seeds, affecting efficiency.
A seed cleaning mechanism is designed, using a combination of lifting components and retaining plates. Through the triangular setting of batch lifting and cleaning screen, the seed batch drop screen is realized, and the cleaning screen is shaken up and down during the lifting process to avoid seed accumulation and remnant.
The batch cutting and screening of seeds are realized, the screening efficiency is improved, the seed accumulation is avoided on the screening screen, and the integrity and efficiency of screening are ensured.
Smart Images
Figure CN223145254U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of seed screening, in particular to a seed cleaning and screening mechanism. Background Art
[0002] Seeds are unique organs of seed plants, and their main function is reproduction. The shape, size, color, surface texture, etc. of seeds vary with different plant species. Before being packaged, impurities and inferior seeds that do not meet the requirements in the seeds need to be screened out to ensure good seed quality and improve the survival rate of agricultural planting.
[0003] Existing seed screening devices usually use a simple cleaning and screening net to screen seeds. When the cleaning and screening net is set in a parallel shape, seeds can be fully screened to improve the screening accuracy. However, after each screening, it is necessary to move the cleaning and screening net to pour out the seeds remaining on the cleaning and screening net, and the operation is relatively inconvenient. There are also some factories that set the cleaning and screening net in an inclined shape to facilitate screening during the process of seeds sliding and rolling down, without the need to move the cleaning and screening net and can improve the screening efficiency. However, during the screening process of seeds, they are usually all poured onto the cleaning and screening net at one time. Since the seeds will roll on the inclined cleaning and screening net, it is easy for some seeds to fall to the lowest end of the cleaning and screening net without passing through the filtration of the cleaning and screening net, and the use is relatively inconvenient.
[0004] Therefore, it is very necessary to invent a seed cleaning and screening mechanism. Content of the Utility Model
[0005] The purpose of the utility model is to solve the problems raised in the above background art.
[0006] To achieve the above purpose, the utility model provides the following technical solution: A seed cleaning and screening mechanism, including a machine body and a storage bin. The storage bin is located above the machine body. A feeding pipe is installed in the middle at the lower end of the storage bin. A conveying component is installed at the lower end of the feeding pipe. A lifting component is installed in the middle at the upper end of the machine body. Baffle plates are fixedly installed at the upper ends on both sides of the lifting component. A driving component is arranged between the conveying component and the lifting component. A cleaning and screening net is installed in the inner cavity of the machine body. Aggregate bins are symmetrically installed at the lower ends on both sides of the machine body.
[0007] Based on the above features: The seeds to be screened can be loaded into the storage bin in advance. When the drive assembly is started, it can drive the lifting assembly and the baffle to lift and adjust intermittently. When the lifting assembly and the baffle descend, the seeds can fall into the body interior through the conveying assembly. Subsequently, the seeds can fall onto the cleaning sieve for screening. The lifting assembly will also press down on the cleaning sieve. The cleaning sieve is arranged in a triangular structure. The screened seeds can fall and be collected through the cleaning sieve, while the seeds that do not pass through the cleaning sieve can slide to both sides and finally fall into the aggregate bin for collection. When the lifting assembly and the baffle rise, the baffle can be inserted into the conveying assembly for limiting, preventing the seeds from continuing to fall, and the lifting assembly will also move away from the cleaning sieve. At this time, the cleaning sieve will rebound upward, thus not only enabling intermittent feeding but also making the cleaning sieve vibrate up and down to screen the seeds, improving the screening efficiency and preventing the seeds from remaining on the surface of the cleaning sieve and causing blockage.
[0008] Preferably, an observation glass is provided on the surface of the body. Discharge ports are symmetrically opened at the lower ends on both sides of the body. Connection ports are opened at the upper ends on both sides of the body. A through port is opened in the middle at the upper end of the body. Vertical plates are symmetrically installed on both sides at the upper end of the body.
[0009] Based on the above features: Both sides of the cleaning sieve pass through the discharge ports, facilitating the seeds that do not pass through the cleaning sieve to fall into the aggregate bin through the discharge ports. The lifting assembly can pass through the through port movably. When the baffle descends to the lowest position, the vertical plate can limit the position below the baffle to prevent the baffle from separating from the conveying assembly.
[0010] Preferably, a fixing plate is fixedly installed on one side at the lower end of the discharge port. Positioning rods are symmetrically installed on both sides at the upper end of the fixing plate. A compression spring is sleeved outside the positioning rods. An anti - detachment plate is fixedly installed at the upper end of the positioning rods.
[0011] Based on the above features: When the cleaning sieve is pressed down by the lifting assembly, the compression spring will be squeezed and deformed. When the lifting assembly separates from the cleaning sieve, the compression spring can rebound to make the cleaning sieve rise. At this time, the anti - detachment plate can limit the positions of both sides of the cleaning sieve to prevent the cleaning sieve from separating from the positioning rods.
[0012] Preferably, the conveying assembly includes a transverse pipe and conveying pipes symmetrically installed on both sides of the transverse pipe. A feed port is opened in the middle at the upper end of the transverse pipe. A guiding plate is installed in the inner cavity of the transverse pipe. Slots are opened at the lower ends on both sides of the transverse pipe close to the conveying pipes.
[0013] Based on the above features: The side of the conveying pipe away from the transverse pipe is connected to the upper ends on both sides of the body through the connection port. When the seeds are loaded into the storage bin, the seeds can fall into the inner part of the transverse pipe through the feeding pipe. At this time, the transverse pipe can guide the seeds to slide to both sides through the guiding plate in the inner cavity, and then the seeds can slide into the inner cavity of the body through the conveying pipes.
[0014] Preferably, the lifting assembly includes a transverse plate and a lifting rod fixedly installed in the middle of the lower end of the transverse plate. A pressing plate is installed at the lower end of the lifting rod, and buffer springs are symmetrically installed on both sides of the lower end of the transverse plate.
[0015] Based on the above features: When the transverse plate is pressed and descends, the transverse plate can squeeze the buffer springs to deform. At this time, the transverse plate can synchronously drive the lifting rod and the baffle plate to descend, and the descending lifting rod can press down the cleaning screen through the pressing plate. When the pressure above the transverse plate disappears, the buffer springs and the cleaning screen can rebound the pressing plate and the lifting rod. At this time, the transverse plate will also drive the baffle plate to move upward, so that the baffle plate can extend into the inner side of the transverse pipe through the slot to block the material.
[0016] Preferably, the driving assembly includes a mounting plate and a rotary motor installed on the front surface of the mounting plate. A rotating shaft is installed at the output end of the rotary motor, and a cam is installed at one end of the rotating shaft.
[0017] Based on the above features: When the rotary motor is started, it can drive the cam to rotate through the rotating shaft. When the protruding end of the cam rotates to the lower side, the cam can press the transverse plate to move downward. When the cam rotates above and away from the transverse plate, the transverse plate will be rebounded upward.
[0018] Preferably, extension plates are symmetrically installed on both sides of the cleaning screen. Activity holes are formed on the surfaces of both sides of the extension plates, and sealing plates are installed on both sides of the lower end of the cleaning screen close to the extension plates.
[0019] Based on the above features: The cleaning screen is inserted into the discharge port through the extension plates on both sides, which facilitates the up-and-down shaking of the extension plates in the discharge port. And the positioning rod can pass through the extension plates through the activity holes, while the compression spring is located below the extension plates and cannot pass through the activity holes. When the cleaning screen and the extension plates move downward, the extension plates can press the compression springs to deform. On the contrary, the compression springs can rebound the extension plates and the cleaning screen upward.
[0020] The beneficial effects of the present utility model are:
[0021] 1. It is convenient for the seeds to be fed intermittently. The seeds to be screened are loaded into the internal storage bin in advance. The seeds can fall into the internal horizontal pipe through the feeding pipe. When the rotating motor is started, the cam can be driven to rotate by the rotating shaft. When the protruding end of the cam rotates to the lower side, the cam can press the horizontal plate to move downward. Then the horizontal plate can drive the baffle plate to descend, so that the seeds can slide through the conveying pipe into the inner cavity of the fuselage. Subsequently, the seeds can be screened by the cleaning sieve. The screened seeds can fall and be collected through the cleaning sieve, while the seeds that do not pass through the cleaning sieve can slide to both sides and finally fall into the internal collection box for collection. When the cam rotates to the upper side away from the horizontal plate, the buffer spring will rebound the horizontal plate. At this time, the horizontal plate can drive the baffle plate to move upward, so that the baffle plate extends into the inner side of the horizontal pipe through the slot to block the material, which is convenient for the intermittent falling and screening of the seeds, and avoids the accumulation of seeds on the cleaning sieve, resulting in some seeds sliding into the internal collection box without being screened.
[0022] 2. When the horizontal plate descends, the horizontal plate can synchronously drive the lifting rod to descend. The descending lifting rod can press the cleaning sieve downward through the pressing plate. At this time, the cleaning sieve can press the compression spring to deform through the extension plate. When the cam rotates to the upper side away from the horizontal plate, the compression spring will rebound the extension plate and the cleaning sieve, so that the cleaning sieve realizes up and down shaking, improving the screening efficiency. Brief Description of the Drawings
[0023] Figure 1 It is a schematic diagram of the overall structure of a seed cleaning mechanism provided by the present utility model;
[0024] Figure 2 It is a schematic diagram of the internal structure of the fuselage and the collection box of a seed cleaning mechanism provided by the present utility model;
[0025] Figure 3 It is a schematic diagram of the cleaning sieve structure of a seed cleaning mechanism provided by the present utility model;
[0026] Figure 4 It is a schematic diagram of the conveying component and the lifting component of a seed cleaning mechanism provided by the present utility model;
[0027] Figure 5 It is a seed cleaning mechanism provided by the present utility model Figure 4 The partial enlarged structure schematic diagram at A in the [utility model].
[0028] In the figure: 1. Machine body; 11. Observation glass; 12. Discharge port; 121. Fixed plate; 122. Positioning rod; 123. Compression spring; 124. Anti - detachment plate; 13. Connection port; 14. Through - port; 15. Vertical plate; 2. Storage bin; 3. Feeding pipe; 4. Conveying assembly; 41. Horizontal pipe; 42. Conveying pipe; 43. Feeding port; 44. Guide plate; 45. Slot; 5. Lifting assembly; 51. Horizontal plate; 52. Lifting rod; 53. Pressing plate; 54. Buffer spring; 6. Baffle plate; 7. Driving assembly; 71. Mounting plate; 72. Rotating motor; 73. Rotating shaft; 74. Cam; 8. Cleaning and screening mesh; 81. Extension plate; 82. Movable hole; 83. Sealing plate; 9. Aggregate bin. Detailed implementation manners
[0029] The following describes the preferred embodiments of the present utility model with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only for the purpose of illustration and explanation of the present utility model, and are not used to limit the present utility model.
[0030] Referring to the attached Figures 1-5 , a seed cleaning and screening mechanism provided by the present utility model includes a machine body 1 and a storage bin 2. The storage bin 2 is located above the machine body 1. A feeding pipe 3 is installed in the middle at the lower end of the storage bin 2. A conveying assembly 4 is installed at the lower end of the feeding pipe 3. A lifting assembly 5 is installed in the middle at the upper end of the machine body 1. Baffle plates 6 are fixedly installed at the upper ends on both sides of the lifting assembly 5. A driving assembly 7 is arranged between the conveying assembly 4 and the lifting assembly 5. A cleaning and screening mesh 8 is installed in the inner cavity of the machine body 1. Aggregate bins 9 are symmetrically installed at the lower ends on both sides of the machine body 1 (boxes for collecting seeds are provided at the lower ends of the inner cavities of the machine body 1 and the aggregate bins 9).
[0031] The storage bin 2 and the driving assembly 7 can be fixed on the wall. Seeds to be screened can be loaded into the storage bin 2 in advance. When the driving assembly 7 is started, it can drive the lifting assembly 5 and the baffle plates 6 to perform intermittent lifting adjustment. When the lifting assembly 5 and the baffle plates 6 descend, the seeds can fall into the inner part of the machine body 1 through the conveying assembly 4. Subsequently, the seeds can fall onto the cleaning and screening mesh 8 for screening. The lifting assembly 5 will also press down the cleaning and screening mesh 8. The cleaning and screening mesh 8 is arranged in a triangular structure. The screened seeds can fall and be collected through the cleaning and screening mesh 8, while the seeds that do not pass through the cleaning and screening mesh 8 can slide to both sides and finally fall into the aggregate bins 9 for collection. When the lifting assembly 5 and the baffle plates 6 rise, the baffle plates 6 can be inserted into the conveying assembly 4 for limiting, preventing the seeds from continuing to fall, and the lifting assembly 5 will also move away from the cleaning and screening mesh 8. At this time, the cleaning and screening mesh 8 will rebound upward, thus not only realizing intermittent feeding, but also making the cleaning and screening mesh 8 vibrate up and down to screen the seeds, improving the screening efficiency and preventing the seeds from remaining on the surface of the cleaning and screening mesh 8 to cause blockage.
[0032] Preferably, an observation glass 11 is provided on the surface of the fuselage 1. Discharge ports 12 are symmetrically formed at the lower ends of both sides of the fuselage 1, connection ports 13 are formed at the upper ends of both sides of the fuselage 1, a through port 14 is formed in the middle of the upper end of the fuselage 1, and vertical plates 15 are symmetrically installed on both sides of the upper end of the fuselage 1.
[0033] The inner cavity of the fuselage 1 can be observed through the observation glass 11. Both sides of the cleaning screen 8 penetrate through the discharge ports 12, facilitating the seeds that do not pass through the cleaning screen 8 to fall into the aggregate box 9 through the discharge ports 12. Both sides of the conveying assembly 4 can be connected to the upper ends of both sides of the fuselage 1 through the connection ports 13. The lifting assembly 5 can movably penetrate through the through port 14. When the baffle 6 descends to the lowest position, the vertical plates 15 can limit the position below the baffle 6 to prevent the baffle 6 from separating from the conveying assembly 4.
[0034] Preferably, a fixing plate 121 is fixedly installed on one side of the lower end of the discharge port 12. Two positioning rods 122 are symmetrically installed on both sides of the upper end of the fixing plate 121. A compression spring 123 is sleeved outside the positioning rods 122, and an anti - detachment plate 124 is fixedly installed at the upper ends of the positioning rods 122.
[0035] The positioning rods 122 can guide and limit both sides of the cleaning screen 8. When the cleaning screen 8 is pressed down by the lifting assembly 5, the compression spring 123 will be squeezed and deformed. When the lifting assembly 5 separates from the cleaning screen 8, the compression spring 123 can rebound to lift the cleaning screen 8. At this time, the anti - detachment plate 124 can limit both sides of the cleaning screen 8 to prevent the cleaning screen 8 from separating from the positioning rods 122.
[0036] Preferably, the conveying assembly 4 includes a transverse pipe 41 and conveying pipes 42 symmetrically installed on both sides of the transverse pipe 41. A feed port 43 is formed in the middle of the upper end of the transverse pipe 41. A guiding plate 44 is installed in the inner cavity of the transverse pipe 41. Slots 45 are formed at the lower ends of both sides of the transverse pipe 41 close to the conveying pipes 42.
[0037] One side of the conveying pipe 42 away from the transverse pipe 41 is connected to the upper ends of both sides of the fuselage 1 through the connection port 13. When the seeds are loaded into the storage box 2, the seeds can fall into the transverse pipe 41 through the feeding pipe 3. At this time, the seeds can slide and be guided to both sides through the guiding plate 44. Then the seeds can slide into the inner cavity of the fuselage 1 through the conveying pipes 42. The baffle 6 can movably penetrate through the slots 45. When the baffle 6 is in the rising state, the baffle 6 will extend into the inner side of the transverse pipe 41 to block the materials, preventing the seeds from continuously falling into the conveying pipes 42. When the baffle 6 descends, the seeds can slide into the conveying pipes 42 for conveying, facilitating the intermittent falling and screening of the seeds, and preventing the seeds from accumulating on the cleaning screen 8, resulting in some seeds sliding into the aggregate box 9 without being screened.
[0038] Preferably, the lifting assembly 5 includes a transverse plate 51 and a lifting rod 52 fixedly installed in the middle at the lower end of the transverse plate 51. A pressing plate 53 is installed at the lower end of the lifting rod 52, and buffer springs 54 are symmetrically installed on both sides at the lower end of the transverse plate 51.
[0039] When the transverse plate 51 is pressed and descends, the transverse plate 51 can squeeze the buffer spring 54 to deform. At this time, the transverse plate 51 can synchronously drive the lifting rod 52 and the baffle 6 to descend, and the descending lifting rod 52 can press down the cleaning screen 8 through the pressing plate 53. When the pressure above the transverse plate 51 disappears, the buffer spring 54 and the cleaning screen 8 can rebound the pressing plate 53 and the lifting rod 52. At this time, the transverse plate 51 will also drive the baffle 6 to move upward, so that the baffle 6 extends into the inner side of the transverse pipe 41 through the slot 45 to block the material.
[0040] Preferably, the driving assembly 7 includes a mounting plate 71 and a rotating motor 72 mounted on the front surface of the mounting plate 71. A rotating shaft 73 is installed at the output end of the rotating motor 72, and a cam 74 is installed at one end of the rotating shaft 73.
[0041] The mounting plate 71 can be fixed on the wall surface. When the rotating motor 72 is started, the cam 74 can be driven to rotate through the rotating shaft 73. When the protruding end of the cam 74 rotates to the lower side, the cam 74 can press the transverse plate 51 to descend. When the cam 74 rotates above and away from the transverse plate 51, the transverse plate 51 will be rebounded and move upward.
[0042] Preferably, extension plates 81 are symmetrically installed on both sides of the cleaning screen 8. Activity holes 82 are formed on the surfaces of both sides of the extension plates 81, and sealing plates 83 are installed on both sides at the lower end of the cleaning screen 8 close to the extension plates 81.
[0043] The cleaning screen 8 is inserted into the discharge port 12 through the extension plates 81 on both sides, which facilitates the up and down shaking of the extension plates 81 in the discharge port 12. And the positioning rod 122 can pass through the extension plates 81 through the activity holes 82, while the compression spring 123 is located below the extension plates 81 and cannot pass through the activity holes 82. When the cleaning screen 8 and the extension plates 81 move downward, the extension plates 81 can press the compression spring 123 to deform. On the contrary, the compression spring can rebound the extension plates 81 and the cleaning screen 8 upward. The provided sealing plates 83 can block the discharge port 12 below the cleaning screen 8 to prevent the seeds falling through the cleaning screen 8 from splashing into the aggregate box 9 at the discharge port 12.
[0044] The usage process of the present utility model is as follows: The seeds to be screened are loaded into the interior of the storage bin 2 in advance. The seeds can fall into the interior of the transverse pipe 41 through the blanking pipe 3. Subsequently, when the rotary motor 72 is started, the cam 74 can be driven to rotate by the rotating shaft 73. When the protruding end of the cam 74 rotates to the lower side, the cam 74 can press the transverse plate 51 to move downward. Then, the transverse plate 51 can squeeze the buffer spring 54 to deform. At this time, the transverse plate 51 can synchronously drive the lifting rod 52 and the baffle 6 to descend. The descending lifting rod 52 can press the cleaning screen 8 downward through the pressing plate 53, and the compression spring 123 will also be squeezed and deformed. The baffle 6 will descend synchronously with the transverse plate 51, so that the seeds can slide through the conveying pipe 42 into the inner cavity of the fuselage 1. Then, the seeds can be screened through the cleaning screen 8. When the cam 74 rotates to the upper side and away from the transverse plate 51, the buffer spring 54 will rebound the transverse plate 51. At this time, the transverse plate 51 can drive the lifting rod 52 and the baffle 6 to move upward, so that the baffle 6 extends into the inner side of the transverse pipe 41 through the slot 45 to block the material, and the compression spring 123 will also rebound the cleaning screen 8, causing the cleaning screen 8 to vibrate up and down. The screened seeds can fall and be collected through the cleaning screen 8, and the seeds that do not pass through the cleaning screen 8 can slide to both sides and finally fall into the aggregate bin 9 for collection.
[0045] The above is only the preferred embodiment of the present utility model. Any person skilled in the art may modify the present utility model by using the technical solutions described above or modify it into an equivalent technical solution. Therefore, any simple modification or equivalent replacement made according to the technical solutions of the present utility model falls within the scope of protection required by the present utility model.
Claims
1. A seed cleaning and screening mechanism, comprising a fuselage (1) and a storage bin (2), the storage bin (2) being located above the fuselage (1), characterized in that: A discharge pipe (3) is installed in the middle at the lower end of the storage bin (2). A conveying component (4) is installed at the lower end of the discharge pipe (3). A lifting component (5) is installed in the middle at the upper end of the machine body (1). Baffle plates (6) are fixedly installed at the upper ends on both sides of the lifting component (5). A driving component (7) is arranged between the conveying component (4) and the lifting component (5). A cleaning sieve mesh (8) is installed in the inner cavity of the machine body (1). Aggregate bins (9) are symmetrically installed at the lower ends on both sides of the machine body (1).
2. The seed cleaning and sieving mechanism according to claim 1, wherein: An observation glass (11) is arranged on the surface of the machine body (1). Discharge ports (12) are symmetrically opened at the lower ends on both sides of the machine body (1). Connection ports (13) are opened at the upper ends on both sides of the machine body (1). A through port (14) is opened in the middle at the upper end of the machine body (1). Vertical plates (15) are symmetrically installed at the upper ends on both sides of the machine body (1).
3. The seed cleaning and screening mechanism according to claim 2, wherein: A fixing plate (121) is fixedly installed at one side of the lower end of the discharge port (12). Positioning rods (122) are symmetrically installed at the upper ends on both sides of the fixing plate (121). A compression spring (123) is sleeved outside the positioning rods (122). An anti - detachment plate (124) is fixedly installed at the upper ends of the positioning rods (122).
4. A seed sieving and cleaning mechanism according to claim 1, characterized in that: The conveying component (4) includes a transverse pipe (41) and conveying pipes (42) symmetrically installed on both sides of the transverse pipe (41). A feed inlet (43) is opened in the middle at the upper end of the transverse pipe (41). A guiding plate (44) is installed in the inner cavity of the transverse pipe (41). Slots (45) are opened at the lower ends on both sides of the transverse pipe (41) close to the conveying pipes (42).
5. A seed cleaning and screening mechanism according to claim 1, characterized in that: The lifting component (5) includes a transverse plate (51) and a lifting rod (52) fixedly installed in the middle at the lower end of the transverse plate (51). A pressing plate (53) is installed at the lower end of the lifting rod (52). Buffer springs (54) are symmetrically installed at the lower ends on both sides of the transverse plate (51).
6. The seed cleaning and screening mechanism according to claim 1, wherein: The driving component (7) includes a mounting plate (71) and a rotary motor (72) installed on the front surface of the mounting plate (71). A rotating shaft (73) is installed at the output end of the rotary motor (72). A cam (74) is installed at one end of the rotating shaft (73).
7. The seed cleaning and screening mechanism according to claim 1, characterized in that: Extension plates (81) are symmetrically installed on both sides of the cleaning sieve mesh (8). Activity holes (82) are opened on the surfaces of both sides of the extension plates (81). Sealing plates (83) are installed at the lower ends on both sides of the cleaning sieve mesh (8) close to the extension plates (81).