Sunflower seed threshing and screening apparatus

Abstract

The application discloses a sunflower seed threshing and screening device, which comprises two opposite vertical plates, a frame fixedly connected between the two vertical plates, the frame being obliquely arranged, a screen fixed to the frame, and a collecting pool fixedly connected between the two vertical plates and provided with a partition plate fixedly connected therein so as to be divided into two chambers for collecting sunflower plates and sunflower seeds. In the application, the reverse side of the sunflower plate is pressed against a sharp body, and the sunflower plate is fixed to one side of a disc through sharp insertion. The seed clamping part is provided with a plurality of clamping grooves, which can allow sunflower seeds on the front side of the sunflower plate to enter the clamping grooves. The disc provided with the sunflower plate is close to the clamping grooves and makes the sunflower plate tightly adhere to one side of the clamping grooves. When the disc is rotated, the sunflower seeds in the clamping grooves are separated from the sunflower plate, so that the threshing operation is avoided through beating, and the sunflower seeds are prevented from being broken during threshing.

Description

Technical Field

[0001] This invention relates to the technical field of sunflower seed removal equipment from sunflower heads, and more particularly to a sunflower seed threshing and screening device. Background Technology

[0002] The sunflower is an annual herbaceous plant belonging to the genus *Helianthus* in the family Asteraceae. It grows to a height of 1–3.5 meters. The stem is erect, round with multiple angles, and hard, covered with coarse white hairs. The broadly ovate leaves are usually alternate, with an acute or acuminate apex, three veins arising from the base, coarsely serrated margins, rough and hairy on both sides, and have long petioles. The flower heads are 10–30 cm in diameter, solitary at the stem apex or branch tips. Sunflower seeds are the seeds of the sunflower; they can be removed intact from the sunflower head for seed research and cultivation.

[0003] However, most existing sunflower seed extraction methods involve using machines to strike the sunflower head to knock the seeds off. But this striking process can easily cause the sunflower seeds to break, and sunflower seeds intended for planting and research cannot be damaged, otherwise it will affect the germination rate during planting. Summary of the Invention

[0004] The purpose of this invention is to provide a sunflower seed threshing and screening device that avoids the use of striking methods for threshing and prevents sunflower seeds from breaking during threshing.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A sunflower seed threshing and screening device includes two opposing upright plates, a frame fixedly connected between the two upright plates, the frame being inclined and equipped with a screen, and a collection pool fixedly connected between the two upright plates. A partition plate is fixedly connected inside the collection pool, dividing the collection pool into two chambers: one for collecting sunflower discs and the other for collecting sunflower seeds.

[0007] Preferably, the screening device further includes at least one disc, on one side of which two sharp objects are symmetrically fixedly connected. The back of the sunflower disc can be pressed against the sharp objects, and the sunflower disc can be fixed to one side of the disc by sharp insertion. The screening device also includes a seed-catching component with multiple slots, which allow sunflower seeds on the front of the sunflower disc to enter. The disc with the sunflower disc is close to the slots and the sunflower disc is pressed tightly against one side of the slots. When the disc is rotated, the sunflower seeds that have entered the slots are detached from the sunflower disc.

[0008] Preferably, one of the upright plates is rotatably connected to two sprockets and a rotating motor is mounted thereon. The output end of the rotating motor is fixedly connected to one of the sprockets. A chain is driven between the two sprockets. The disc is rotatably mounted on one side of the chain. Multiple first teeth are fixedly connected to the outer circumference of the disc. The upright plate with the sprocket is fixedly connected to a parallel plate. Multiple second teeth are fixedly connected to the parallel plate at equal intervals. When the disc rotates to below the parallel plate, it engages with the parallel plate.

[0009] Preferably, a round rod is fixedly connected to one side of the chain, the number of round rods being the same as the number of discs. The discs have circular grooves, and the round rods are slidably connected to the circular grooves. The discs also have limiting ring grooves, which are coaxially arranged with and communicate with the circular grooves. The diameter of the limiting ring grooves is larger than the diameter of the circular grooves. A first limiting ring is fixedly sleeved on the outer wall of the round rod, and a second limiting ring is slidably sleeved on it. Both the first and second limiting rings are slidably connected to the limiting ring grooves. Multiple compression springs are provided between the first and second limiting rings, and the two ends of the compression springs are respectively connected to the first and second limiting rings.

[0010] Preferably, two separation plates are fixedly connected to one side of the upright plate with the sprocket. The two separation plates are located on both sides of the chain portion below the sprocket. The edges of the separation plates protruding from the chain are rounded. A baffle is fixedly connected to the frame and cooperates with the two threshing plates, so that the sunflower heads detached from the sharp body slide along the baffle and the inclined direction of the frame.

[0011] Preferably, a plurality of the seed-locking components are fixedly mounted on the frame. Each seed-locking component includes a first vertical plate fixed to the frame, a second vertical plate elastically connected to the first vertical plate, a vertical groove formed in the second vertical plate, a sliding connection between the first vertical plate and the vertical groove, a plurality of springs being provided in the vertical groove, the two ends of the springs being connected to the inner wall of the vertical groove and the first vertical plate respectively, and two connecting rods being provided in the second vertical plate.

[0012] Preferably, two corresponding connecting rods are fixedly connected to the threshing plate. Both the threshing plate and the disc are made of magnetic material and can attract each other magnetically. A plurality of slots are arranged in an array on the side of the threshing plate facing the sprocket. The threshing plate also has a plurality of connecting grooves, which are connected to each corresponding slot. A stop block is slidably connected to the connecting groove. The stop block is fixedly connected to a folding plate. The folding plate has an inclined slope. The threshing plate also has a sliding groove, which is connected to the slot and the connecting groove. A slider is slidably connected in the sliding groove. The slider is fixedly connected to an inclined plate. The inclined surface of the inclined plate is adapted to the slope. A sponge is also provided in the slot.

[0013] Preferably, a lever is provided on another vertical plate. The vertical plate has a limiting groove, and a limiting block is slidably connected in the limiting groove. Both the limiting groove and the limiting block are convex. The limiting block is fixedly connected to the lever. The second vertical plate is fixedly connected to a fixing plate. The other end of the fixing plate rests on the lever. The vertical plate is rotatably connected to a cam. The cam has two protruding parts. The central axis of the cam extends from the central axis of the sprocket and is fixedly connected to each other.

[0014] Preferably, the two connecting rods are elastically connected to the corresponding second vertical plate, the second vertical plate is fixedly connected to two mounting seats, the mounting seats are provided with a rotating shaft, the connecting rods are rotatably connected to the corresponding mounting seats, a torsion spring is sleeved on the outer wall of the rotating shaft, and the two ends of the torsion spring are respectively connected to the connecting rod and the mounting seat.

[0015] A method for using a sunflower seed threshing and screening device includes the following steps:

[0016] Press the reverse side of the sunflower disc against the sharp object, and fix the sunflower disc to one side of the disc by inserting the sharp object;

[0017] Start the rotating motor, which drives the sprocket and chain to rotate, causing each disc to rotate and move the sunflower disc toward the threshing plate;

[0018] When the disc moves to the threshing plate, it is magnetically attracted to the threshing plate. The disc then moves toward the threshing plate and further compresses the spring, making the sunflower disc stick tightly to the threshing plate. At the same time, under the action of the first and second locking teeth, the disc rotates synchronously as it runs, and the sunflower seeds that have entered the slots are detached from the sunflower disc.

[0019] When the sunflower disc is in close contact with the side of the threshing plate 28 with nail-like objects 44, the sunflower seeds are stuck between the corresponding nail-like objects 44. The rotation of the disc 1 is used to rotate and peel the sunflower seeds stuck between the nail-like objects 44, so that they can be removed from the sunflower disc.

[0020] After threshing, the sunflower heads are separated by a separating plate, causing them to be removed from the sharp object and fall onto the screen below. Under the obstruction of the baffle, the sunflower heads remain vertical and slide down the frame at an angle, while the threshed sunflower seeds pass through the screen. The sunflower heads and sunflower seeds then fall into the two chambers of the collection pool, respectively.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0022] In this invention, the reverse side of the sunflower disc is pressed against a sharp object, and the sunflower disc is fixed to one side of the disc by the sharp object being inserted. The seed-holding component has multiple slots that allow sunflower seeds from the front of the sunflower disc to enter. The disc with the sunflower disc is brought close to the slots and the sunflower disc is pressed tightly against one side of the slots. When the disc is rotated, the sunflower seeds that have entered the slots are released from the sunflower disc, avoiding the use of striking to thresh the seeds and preventing the sunflower seeds from breaking during threshing. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of a sunflower seed threshing and screening device proposed in this invention;

[0024] Figure 2 This is an exploded structural diagram of a sunflower seed threshing and screening device proposed in this invention;

[0025] Figure 3 for Figure 2 Enlarged structural diagram at point A;

[0026] Figure 4 This is an exploded view of the disc structure in a sunflower seed threshing and screening device proposed in this invention.

[0027] Figure 5 This is a schematic diagram of the structure of the first vertical plate and the second vertical plate in a sunflower seed threshing and screening device proposed in this invention;

[0028] Figure 6 This is an exploded schematic diagram of the connection structure between the mounting base and the connecting rod in a sunflower seed threshing and screening device proposed in this invention.

[0029] Figure 7 This is a schematic diagram of a portion of the threshing plate and its internal slot in a sunflower seed threshing and screening device proposed in this invention.

[0030] Figure 8 This is a schematic diagram of the inclined plate and slider in a sunflower seed threshing and screening device proposed in this invention;

[0031] Figure 9 This is a schematic diagram of the connection structure between the frame and each of the first vertical plates in a sunflower seed threshing and screening device proposed in this invention.

[0032] In the diagram: 1. Disc; 2. Sharp object; 3. Slot; 4. Vertical plate; 5. Frame; 6. Screen; 7. Collection pool; 8. Divider plate; 9. Sprocket; 10. Rotating motor; 11. Chain; 12. First tooth; 13. Parallel plate; 14. Second tooth; 15. Round rod; 16. Round groove; 17. Limiting ring groove; 18. First limiting ring; 19. Second limiting ring; 20. Compression spring; 21. Separating plate; 22. Baffle plate; 23. 24. First vertical plate; 25. Second vertical plate; 26. Vertical groove; 27. Spring; 28. Connecting rod; 29. ​​Threshing plate; 30. Connecting groove; 31. Stopping block; 32. Folding plate; 33. Sliding groove; 34. Sliding block; 35. Sponge body; 36. Push block; 37. Limiting groove; 38. Limiting block; 39. Fixing plate; 40. Cam; 41. Mounting base; 42. Rotating shaft; 43. Torsion spring; 44. Nail-like object. Implementation

[0033] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0034] Reference Appendix Figure 1 -Appendix Figure 9 A sunflower seed threshing and screening device includes at least one disc 1. Two sharp bodies 2 are symmetrically fixed to one side of the disc 1. The back of the sunflower disc can be pressed against the sharp bodies 2, and the sunflower disc can be fixed to one side of the disc 1 by sharp insertion. The screening device also includes a seed-clamping component with multiple slots 3, which allow sunflower seeds on the front of the sunflower disc to enter. The disc 1 with the sunflower disc is close to the slots 3 and the sunflower disc is pressed against one side of the slots 3. When the disc 1 is rotated, the sunflower seeds that have entered the slots 3 are detached from the sunflower disc.

[0035] The screening device also includes two opposing upright plates 4, with a frame 5 fixedly connected between the two upright plates 4. The frame 5 is inclined and has a screen 6. A collection pool 7 is also fixedly connected between the two upright plates 4. A partition plate 8 is fixedly connected inside the collection pool 7, so that the collection pool 7 is divided into two chambers for collecting sunflower discs and for collecting sunflower seeds.

[0036] One of the upright plates 4 is rotatably connected to two sprockets 9 and a rotating motor 10 is installed. The output end of the rotating motor 10 is fixedly connected to one of the sprockets 9. A chain 11 is provided between the two sprockets 9 for transmission. The disc 1 is rotatably located on one side of the chain 11. Multiple first teeth 12 are fixedly connected to the outer circumference of the disc 1. The upright plate 4 with the sprockets 9 is fixedly connected to a parallel plate 13. Multiple second teeth 14 are fixedly connected to the parallel plate 13 at equal intervals. When the disc 1 rotates to the lower part of the parallel plate 13, it meshes with the parallel plate 13.

[0037] A round rod 15 is fixedly connected to one side of the chain 11. The number of round rods 15 is the same as the number of discs 1. The discs 1 have round grooves 16. The round rods 15 are slidably connected to the round grooves 16. The discs 1 also have limiting ring grooves 17. The limiting ring grooves 17 and the round grooves 16 are coaxially arranged and interconnected. The diameter of the limiting ring grooves 17 is larger than the diameter of the round grooves 16. The outer wall of the round rod 15 is fixedly sleeved with a first limiting ring 18 and slidably sleeved with a second limiting ring 19. The first limiting ring 18 and the second limiting ring 19 are both slidably connected to the limiting ring grooves 17. Multiple compression springs 20 are arranged between the first limiting ring 18 and the second limiting ring 19. The two ends of the compression springs 20 are respectively connected to the first limiting ring 18 and the second limiting ring 19.

[0038] Two separation plates 21 are fixedly connected to one side of the upright plate 4 with sprocket 9. The two separation plates 21 are located on both sides of the chain 11 part below the sprocket 9. The separation plates 21 are rounded and protrude from the edges and corners of the chain 11. A baffle 22 is fixedly connected to the frame 5 and cooperates with the two threshing plates so that the sunflower discs that detach from the sharp body 2 slide along the inclined direction of the baffle 22 and the frame 5 and fall into the chamber for collecting sunflower discs.

[0039] Multiple locking components are fixedly mounted on the frame 5. Each locking component includes a first vertical plate 23 fixed on the frame 5, a second vertical plate 24 elastically connected to the first vertical plate 23, a vertical groove 25 formed in the second vertical plate 24, a sliding connection between the first vertical plate 23 and the vertical groove 25, multiple springs 26 set in the vertical groove 25, and the two ends of the springs 26 being connected to the inner wall of the vertical groove 25 and the first vertical plate 23 respectively. The second vertical plate 24 is provided with two connecting rods 27.

[0040] Two corresponding connecting rods 27 are fixedly connected to the threshing plate 28. Both the threshing plate 28 and the disc 1 are made of magnetic material and can attract each other magnetically. Multiple slots 3 are arranged in an array on the side of the threshing plate 28 facing the sprocket 9. The threshing plate 28 also has multiple connecting slots 29, which are connected to each slot 3. The connecting slots 29 are slidably connected to the stop block 30. The stop block 30 is fixedly connected to the folding plate 31, which has an inclined slope. The threshing plate 28 also has a sliding groove 32, which is connected to the slots 3 and the connecting grooves 29. The sliding slider 33 is slidably connected to the sliding groove 32. The sliding slider 33 is fixedly connected to the inclined plate 34, which is adapted to the slope. A sponge 35 is also provided in the slot 3.

[0041] When the sunflower seed enters the slot 3, it will squeeze the blocking block 30, causing the sponge 35 to be squeezed. The folding plate 31 moves towards the sponge 35, and through the transmission of the slope and inclined surface, the inclined plate 34 moves towards the slot 3, pressing against the side of the sunflower seed entering the slot 3, further restricting the sunflower seed and helping the sunflower seed to better detach from the sunflower head.

[0042] Another vertical plate 4 is provided with a lever 36. The vertical plate 4 has a limiting groove 37. A limiting block 38 is slidably connected in the limiting groove 37. Both the limiting groove 37 and the limiting block 38 are convex. The limiting block 38 is fixedly connected to the lever 36. The second vertical plate 24 is fixedly connected to a fixing plate 39. The other end of the fixing plate 39 rests on the lever 36. The vertical plate 4 is rotatably connected to a cam 40. The cam 40 has two protruding parts. The central axis of the cam 40 extends from the central axis of the sprocket 9 and is fixedly connected to each other.

[0043] As the sprocket 9 rotates, the cam 40 rotates synchronously, causing the paddle block 36 to vibrate up and down in small amplitudes, which in turn causes the second vertical plate 24 to vibrate up and down in small amplitudes, which in turn causes the threshing plate 28 to vibrate up and down in small amplitudes, thus better threshing the sunflower seeds on the sunflower disc.

[0044] Two connecting rods 27 are elastically connected to the corresponding second vertical plate 24. The second vertical plate 24 is fixedly connected to two mounting seats 41. The mounting seats 41 are provided with a rotating shaft 42. The connecting rods 27 are rotatably connected to the corresponding mounting seats 41. A torsion spring 43 is sleeved on the outer wall of the rotating shaft 42. The two ends of the torsion spring 43 are respectively connected to the connecting rods 27 and the mounting seats 41.

[0045] As the threshing plate 28 vibrates slightly up and down, it changes from facing the sunflower seeds in the center of the sunflower disc to moving back and forth between the center and the surrounding area. Combined with the rotation of the connecting rod 27, this allows the threshing plate 28 to more thoroughly thresh the sunflower seeds on the sunflower disc.

[0046] Multiple nail-like objects 44 are fixedly connected to one side of the threshing plate 28 corresponding to the sunflower disc. The nail-like objects 44 are made of rubber. When the sunflower disc is in close contact with the side of the threshing plate 28 with the nail-like objects 44, the sunflower seeds are stuck between the corresponding nail-like objects 44. The sunflower seeds stuck between the nail-like objects 44 are rotated and peeled off by the rotation of the disc 1, so that they are removed from the sunflower disc.

[0047] Working principle:

[0048] Press the reverse side of the sunflower disc against the sharp object 2, and fix the sunflower disc to one side of the disc 1 by inserting the sharp object.

[0049] Start the rotating motor 10, which drives the sprocket 9 and chain 11 to rotate, so that each disc 1 rotates accordingly, causing the sunflower disc to move toward the threshing plate 28;

[0050] When it moves to the threshing plate 28, the disc 1 and the threshing plate 28 are magnetically attracted to each other. The disc 1 then moves toward the threshing plate 28 and further squeezes the compression spring 20, so that the sunflower disc is in close contact with the threshing plate 28. At the same time, under the action of the first locking tooth 12 and the second locking tooth 14, the disc 1 rotates synchronously when it is running, and the sunflower seeds that have entered the slot 3 are detached from the sunflower disc.

[0051] When the sunflower disc is in close contact with the side of the threshing plate 28 with nail-like objects 44, the sunflower seeds are stuck between the corresponding nail-like objects 44. The rotation of the disc 1 is used to rotate and peel the sunflower seeds stuck between the nail-like objects 44, so that they can be removed from the sunflower disc.

[0052] After threshing, the sunflower disc is separated by the separating plate 21, causing it to be removed from the sharp body 2 and fall onto the screen 6 below. Under the obstruction of the baffle 22, the sunflower disc remains vertical and slides down the frame 5 at an angle. The threshed sunflower seeds pass through the screen 6, and the sunflower disc and sunflower seeds fall into the two chambers of the collection pool 7 respectively.

[0053] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A sunflower seed threshing and screening device, characterized in that, It includes two opposing upright plates (4), a frame (5) is fixedly connected between the two upright plates (4), the frame (5) is inclined, a screen (6) is set on the frame (5), a collection pool (7) is also fixedly connected between the two upright plates (4), and a partition plate (8) is fixedly connected inside the collection pool (7), so that the collection pool (7) is divided into two chambers for collecting sunflower discs and collecting sunflower seeds; The screening device also includes at least one disc (1), on one side of which two sharp bodies (2) are symmetrically fixedly connected. The back of the sunflower disc can be pressed against the sharp bodies (2), and the sunflower disc can be fixed to one side of the disc (1) by sharp insertion. The screening device also includes a seed-locking component, which includes a threshing plate (28). The threshing plate (28) has multiple slots (3) that allow sunflower seeds on the front of the sunflower disc to enter. The disc (1) with the sunflower disc is close to the slots (3) and the sunflower disc is pressed against one side of the slots (3). When the disc (1) is rotated, the sunflower seeds that have entered the slots (3) are removed from the sunflower disc. Multiple nails (44) are fixedly connected to one side of the threshing plate (28) corresponding to the sunflower disc. The nails (44) are made of rubber. When the sunflower disc is in close contact with the side of the threshing plate (28) with the nails (44), the sunflower seeds are stuck between the corresponding nails (44). The sunflower seeds stuck between the nails (44) are rotated and peeled off by the rotation of the disc (1), so that they are removed from the sunflower disc. One of the upright plates (4) is rotatably connected to two sprockets (9) and a rotating motor (10) is installed. The output end of the rotating motor (10) is fixedly connected to one of the sprockets (9). A chain (11) is provided between the two sprockets (9). The disc (1) is rotatably disposed on one side of the chain (11). Multiple first teeth (12) are fixedly connected to the outer circumference of the disc (1). The upright plate (4) with the sprockets (9) is fixedly connected to a parallel plate (13). Multiple second teeth (14) are fixedly connected to the parallel plate (13) at equal intervals. When the disc (1) rotates to the bottom of the parallel plate (13), it meshes with the parallel plate (13). Two separation plates (21) are fixedly connected to one side of the upright plate (4) with sprocket (9). The two separation plates (21) are located on both sides of the chain (11) below the sprocket (9). The separation plates (21) are rounded at the corners of the chain (11). A baffle (22) is fixedly connected to the frame (5) and cooperates with the two threshing plates so that the sunflower head that has detached from the sharp body (2) slides along the baffle (22) and the inclined direction of the frame (5). Multiple seed-locking components are fixedly mounted on the frame (5). Each seed-locking component includes a first vertical plate (23) fixed on the frame (5). The first vertical plate (23) is elastically connected to a second vertical plate (24). The second vertical plate (24) has a vertical groove (25). The first vertical plate (23) is slidably connected to the vertical groove (25). Multiple springs (26) are provided in the vertical groove (25). The two ends of the springs (26) are respectively connected to the inner wall of the vertical groove (25) and the first vertical plate (23). The second vertical plate (24) is provided with two connecting rods (27). The threshing plate (28) is fixedly connected to the same end of two corresponding connecting rods (27). Both the threshing plate (28) and the disc (1) are made of magnetic material and can attract each other magnetically. Multiple slots (3) are arranged in an array on the side of the threshing plate (28) facing the sprocket (9). The threshing plate (28) also has multiple connecting slots (29), which are connected to each slot (3). The connecting slots (29) are slidably connected to abut against each other. Block (30), the blocking block (30) is fixedly connected to the folding plate (31), the folding plate (31) has an inclined slope, the threshing plate (28) also has a sliding groove (32), the sliding groove (32) is connected to the slot (3) and the connecting groove (29), the sliding groove (32) is slidably connected to the slider (33), the slider (33) is fixedly connected to the inclined plate (34), the inclined surface of the inclined plate (34) is adapted to the slope, and a sponge (35) is also provided in the slot (3).

2. The sunflower seed threshing and screening device according to claim 1, characterized in that, One side of the chain (11) is fixedly connected to a round rod (15), the number of which is the same as the number of the discs (1). The discs (1) have circular grooves (16), and the round rods (15) are slidably connected to the circular grooves (16). The discs (1) also have limiting ring grooves (17), which are coaxially arranged with the circular grooves (16) and are interconnected. The diameter of the limiting ring grooves (17) is larger than that of the circular grooves (16). The diameter of the rod is such that the outer wall of the rod (15) is fixedly sleeved with a first limiting ring (18) and slidably sleeved with a second limiting ring (19). The first limiting ring (18) and the second limiting ring (19) are slidably connected to the limiting ring groove (17). Multiple compression springs (20) are provided between the first limiting ring (18) and the second limiting ring (19). The two ends of the compression springs (20) are respectively connected to the first limiting ring (18) and the second limiting ring (19).

3. The sunflower seed threshing and screening device according to claim 2, characterized in that, Another vertical plate (4) is provided with a lever (36). The vertical plate (4) has a limiting groove (37). A limiting block (38) is slidably connected in the limiting groove (37). The limiting groove (37) and the limiting block (38) are both convex. The limiting block (38) is fixedly connected to the lever (36). The second vertical plate (24) is fixedly connected to a fixing plate (39). The other end of the fixing plate (39) rests on the lever (36). The vertical plate (4) is rotatably connected to a cam (40). The cam (40) has two protruding parts. The central axis of the cam (40) extends from the central axis of the sprocket (9) and is fixedly connected to each other.

4. The sunflower seed threshing and screening device according to claim 3, characterized in that, The two connecting rods (27) are elastically connected to the corresponding second vertical plate (24). The second vertical plate (24) is fixedly connected to two mounting seats (41). The mounting seats (41) are provided with a rotating shaft (42). The connecting rods (27) are rotatably connected to the corresponding mounting seats (41). A torsion spring (43) is sleeved on the outer wall of the rotating shaft (42). The two ends of the torsion spring (43) are respectively connected to the connecting rods (27) and the mounting seats (41).

5. The method of using the sunflower seed threshing and screening device according to claim 4, characterized in that, Includes the following steps: Press the reverse side of the sunflower disc against the sharp object (2), and fix the sunflower disc to one side of the disc (1) by inserting the sharp object; Start the rotating motor (10) to drive the sprocket (9) and chain (11) to rotate, so that each disc (1) rotates and the sunflower disc moves toward the threshing plate (28); When it moves to the threshing plate (28), the disc (1) and the threshing plate (28) are magnetically attracted, so the disc (1) moves toward the threshing plate (28) and further squeezes the compression spring (20), so that the sunflower disc is in close contact with the threshing plate (28). At the same time, under the action of the first locking tooth (12) and the second locking tooth (14), the disc (1) rotates synchronously when it is running, and the sunflower seeds that have entered the slot (3) are detached from the sunflower disc. When the sunflower disc is in close contact with the side of the threshing plate (28) with nails (44), the sunflower seeds are stuck between the corresponding nails (44). The sunflower seeds stuck between the nails (44) are rotated and peeled off by the rotation of the disc (1) so that they can be removed from the sunflower disc. After threshing, the sunflower disc is separated by the separating plate (21), causing it to be removed from the sharp body (2) and fall onto the screen (6) below. Under the obstruction of the baffle (22), the sunflower disc remains vertical and slides down along the frame (5) at an angle. The threshed sunflower seeds pass through the screen (6), and the sunflower disc and sunflower seeds fall into the two chambers of the collection pool (7) respectively.

Images