A wheat seed sorting apparatus

Abstract

This invention relates to the field of wheat seed sorting technology, specifically a wheat seed sorting device. The invention includes a base and a sorting box. A dual-axis vibrating motor is fixedly installed on the top surface of the sorting box. A material guiding mechanism, a second screen, and a first screen are installed inside the sorting box. The material guiding assembly includes a material guiding plate. A lifting assembly is located directly below the material guiding plate. The material guiding plate has a hollow structure, and multiple evenly distributed protrusions are fixedly installed on its top surface. Air outlet slots are formed in the protrusions. A pipe joint is fixedly connected through the bottom surface of the material guiding plate, and the pipe joint is connected to a blowing assembly. This invention, through the design of the material guiding plate, can effectively extend the wind-sorting time for wheat seeds. Furthermore, through the coordinated design of the protrusions and the blowing assembly, while achieving the wind-sorting function, it can also improve the uniformity of wheat seed distribution on the material guiding plate. Combined with the vibration of the wheat seeds, it can effectively improve the penetration performance of the airflow into the seeds, thereby improving the performance of wind-sorting and impurity removal.

Description

Technical Field

[0001] This invention relates to the field of wheat seed sorting technology, specifically a wheat seed sorting device. Background Technology

[0002] Wheat seed sorting is a crucial step in agricultural research and production, directly affecting sowing uniformity, emergence rate, and final yield. Currently, the mainstream wheat seed sorting technology is a combination of vibration and air separation.

[0003] Existing sorting equipment typically includes a frame, a vibrating motor, a screen, a hopper, and a blower. During use, wheat seeds are added to the hopper, and the wheat seeds fall onto the screen. The vibrating motor causes the screen to vibrate, thereby completing the sorting of the wheat seeds. During the process of the wheat seeds falling onto the screen, the blower generates airflow that blows the wheat seeds, thereby removing light impurities from the wheat seeds.

[0004] However, existing sorting equipment still has the following shortcomings during use:

[0005] During the falling wind separation process, the wheat seeds fall for a short period of time and are unevenly distributed, which prevents the airflow from penetrating the seeds effectively. As a result, light impurities (such as empty husks and straw fragments) are not fully separated. Summary of the Invention

[0006] The purpose of this invention is to provide a wheat seed sorting device to solve the problems mentioned in the background art.

[0007] The objective of this invention can be achieved through the following technical solutions:

[0008] A wheat seed sorting device includes a base and a sorting box. An elastic support component is fixedly connected between the bottom surface of the sorting box and the top surface of the base. A dual-axis vibration motor is fixedly installed on the top surface of the sorting box, and a feeding mechanism is also fixedly installed on the top surface of the base. Both the top and bottom surfaces of the sorting box are inclined, and the included angle between the top and bottom surfaces of the sorting box is an acute angle. A feeding port is opened on the top surface of the sorting box near the higher end. A discharge chute one is fixedly installed through the sorting box near the top on the end surface away from the feeding port. A discharge chute two, a discharge chute three, and a discharge chute four are fixedly installed through the sorting box from top to bottom in the middle and lower part of the end surface of the sorting box near the feeding port.

[0009] The sorting box is equipped with a material guiding mechanism, a second screen and a first screen in sequence from top to bottom. The material guiding mechanism is parallel to the top surface of the sorting box, and the second screen and the first screen are parallel to the bottom surface of the sorting box.

[0010] The material guiding assembly includes a material guiding plate that slides in contact with the inner wall of the sorting box. The material guiding plate has sliding rods installed through it near the four corners. The top and bottom ends of the sliding rods are fixedly connected to the inner wall of the sorting box with protrusions. A material discharge slot is opened at the lower end of the material guiding plate.

[0011] A lifting assembly is fixedly connected to the bottom of the guide plate and is rotatably installed between the two sides of the sorting box;

[0012] The guide plate is a hollow structure. Multiple evenly distributed protrusions are fixedly installed on the top surface of the guide plate. Air outlet slots are opened in the protrusions and communicate with the interior of the guide plate. A pipe joint is fixedly connected through the bottom surface of the guide plate. A blower assembly located outside the sorting box is fixedly connected to the end of the pipe joint away from the guide plate.

[0013] Furthermore, the axis of the protruding post is perpendicular to the top surface of the guide plate, the part of the air outlet hole away from the guide plate has a bent upward structure, the end of the air outlet hole away from the guide plate is located on the periphery of the protruding post, and the end of the air outlet hole away from the guide plate is aligned with the direction close to the discharge trough.

[0014] Furthermore, a drive shaft is fixedly connected to one end of the dual-axis vibration motor, and a bearing seat fixedly installed on the top surface of the sorting box is mounted on the periphery of the drive shaft. A drive pulley one and a drive pulley two are fixedly installed at the end of the drive shaft away from the dual-axis vibration motor.

[0015] Furthermore, the lifting assembly includes a hanging plate and a rotating shaft. The rotating shaft is rotatably installed between the two sides of the sorting box. A cam is fixedly installed at the center of the outer periphery of the rotating shaft, and drive grooves are provided at both ends of the cam.

[0016] Two hanging plates are provided, both of which are fixedly installed on the bottom surface of the guide plate and are located at both ends of the cam. On the side of the hanging plate near the cam, at the bottom position, there is a light shaft that is rotatably connected to the light shaft and is parallel to the rotating shaft. The end of the light shaft away from the hanging plate is inserted into the corresponding drive groove, and the outer periphery of the light shaft is in sliding contact with the inner wall of the drive groove.

[0017] The driven pulley 2 is fixedly installed at one end of the rotating shaft near the bearing seat after it rotates through the side of the sorting box. A belt 2 is installed between the driven pulley 2 and the driving pulley 2.

[0018] Furthermore, rollers are provided in both the discharge trough and the sorting box near the inlet. The rollers in the discharge trough are installed between the two sides of the discharge trough and are located at the upper part of the discharge trough.

[0019] The rollers in the sorting box are rotatably installed between the two sides of the sorting box, and a conveyor belt is installed between the two rollers, which is parallel to the top surface of the sorting box. The width of the conveyor belt is equal to the width of the top surface of the sorting box.

[0020] A driven pulley is fixedly installed at one end of the roller shaft located in the discharge trough, near the bearing seat, after it rotates through the side of the discharge trough. A belt is installed between the driven pulley and the driving pulley.

[0021] Furthermore, an inclined scraper is fixedly connected to the inner top surface of the discharge trough, and the front end of the scraper slides in contact with the outer surface of the conveyor belt.

[0022] Furthermore, the feeding mechanism includes two support plates fixedly installed on the top surface of the base, and an mounting plate located directly above the feed inlet is fixedly connected between the top ends of the two support plates. A hopper is fixedly installed through the mounting plate, and a corrugated guide pipe is fixedly connected between the bottom end of the hopper and the feed inlet.

[0023] The rear end of the mounting plate is fixedly connected to a boss for mounting the blower assembly.

[0024] Furthermore, the blowing assembly includes a blower fixed on the protrusion, and a first telescopic hose is fixedly connected to the air outlet of the blower. A conduit is fixedly connected to the end of the first telescopic hose away from the blower. The end of the conduit away from the first telescopic hose is fixedly connected through the side of the sorting box to the inside of the sorting box, and the conduit is located between the guide plate and the second screen. A second telescopic hose is fixedly connected between the end of the conduit in the sorting box and the pipe joint.

[0025] Furthermore, the second screen includes a screen plate, and the top surface of the screen plate is provided with a plurality of screen holes arranged in a rectangular array, wherein the screen holes are rectangular holes;

[0026] The top surface of the sieve plate is fixedly installed with L-shaped limiting plates on both sides. A rectangular frame is also slidably installed on the top surface of the sieve plate. The two sides of the rectangular frame are respectively located in the two L-shaped limiting plates. Multiple arrayed baffles are fixedly connected between the two length sides of the rectangular frame along its length direction. Multiple arrayed baffles are fixedly connected between the two width sides of the rectangular frame along its length direction. The baffles are used to control the width and length of the sieve holes, respectively.

[0027] A screw rod is threaded through the middle of the outer side of the L-shaped limiting plate. One end of the screw rod located in the L-shaped limiting plate is rotatably connected to an abutment plate disposed between the top surface of the L-shaped limiting plate and the sieve plate. The abutment plate slides in contact with the L-shaped limiting plate and the sieve plate. A knob is fixedly installed on one end of the screw rod located outside the L-shaped limiting plate.

[0028] The L-shaped limiting plate has bolts threaded through at both ends of its top surface, and friction pads are rotatably mounted on the front ends of the bolts.

[0029] Furthermore, the support assembly includes springs, and the springs are fixedly connected to the bottom surface of the sorting box near the four corners, with the springs perpendicular to the top surface of the base;

[0030] A support rod is fixedly connected between the bottom end of the spring and the top surface of the base.

[0031] The beneficial effects of this invention are:

[0032] 1. The present invention can effectively extend the wind separation time of wheat seeds by setting the guide plate. Furthermore, through the coordinated setting of the protruding column and the blowing component, the wind separation function can be realized while improving the uniformity of wheat seed distribution on the guide plate. Combined with the vibration of the wheat seeds, the penetration performance of the airflow into the wheat seeds can be effectively improved, thereby improving the performance of wind separation and impurity removal.

[0033] 2. By setting the air outlet slot, the protruding column not only improves the uniformity of wheat seed distribution, but also functions as an airflow nozzle to achieve air separation. At the same time, the bending design of the air outlet slot can work with the top surface of the sorting box to guide light impurities into the discharge trough for discharge. Furthermore, by aligning the air outlet of the air outlet slot with the discharge trough, it is possible to prevent fallen wheat seeds and impurities from falling into the air outlet slot, thus giving it good anti-clogging performance and improving the working stability of the invention.

[0034] 3. By setting up the lifting component, the present invention allows the wheat seeds to move on the guide plate and then be subjected to vertical throwing motion on the basis of vibration. This amplifies the difference in motion between impurities and plump seeds. During the throwing process, light impurities are more easily captured by the airflow, while heavy seeds fall back quickly, thus improving the separation accuracy.

[0035] 4. The second screen adopts an adjustable screen hole structure. The screw drives the contact plate and bolt to lock, realizing the vertical / horizontal translation of the rectangular frame, accurately controlling the effective opening of the screen hole. The screen hole parameters can be adjusted by simply turning the screw and bolt, without the need to replace the screen, which significantly improves the versatility of the equipment. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0037] Figure 1 This is a three-dimensional schematic diagram of the overall structure of the present invention;

[0038] Figure 2 yes Figure 1 A three-dimensional diagram from another angle;

[0039] Figure 3 yes Figure 2 Enlarged view of section A;

[0040] Figure 4 This is a three-dimensional schematic diagram of the internal structure of the sorting box in this invention;

[0041] Figure 5 yes Figure 4 Enlarged view of section B;

[0042] Figure 6 This is a schematic diagram of the connection relationship between the protruding post and the guide plate in this invention;

[0043] Figure 7 yes Figure 5 Enlarged view of section C;

[0044] Figure 8 yes Figure 5 Enlarged view of section D;

[0045] Figure 9 This is a schematic diagram of the structure of the second screen in this invention;

[0046] Figure 10 yes Figure 9 The left view;

[0047] The attached figures are labeled as follows:

[0048] 1-Base, 2-Support rod, 3-Spring, 4-Sorting box, 5-Support plate, 6-Mounting plate, 7-Hopper, 8-Corrugated guide pipe, 9-Dual-axis vibratory motor, 10-Discharge chute one, 11-Guide pipe, 12-Telescopic hose one, 13-Protrusion seat, 14-Blower, 15-Discharge chute two, 16-Discharge chute three, 17-Discharge chute four, 18-Bearing seat, 19-Drive pulley one, 20-Belt one, 21-Drive pulley two, 22-Belt two, 23-Driven pulley one, 24-Roller, 25-Driven pulley two, 26-Shaft. 27-First screen, 28-Second screen, 29-Conveyor belt, 30-Telescopic hose II, 31-Pipe connector, 32-Guide plate, 33-Protruding column, 34-Feed inlet, 35-Cam, 36-Drive groove, 37-Hanging plate, 38-Optical shaft, 39-Discharge trough, 40-Protrusion, 41-Slide rod, 42-Screw plate, 43-Rectangular frame, 44-L-shaped limit plate, 45-Screw, 46-Bolt, 47-Stop bar I, 48-Stop bar II, 49-Screw hole, 50-Contact plate, 51-Friction pad, 52-Air outlet slot, 53-Scraper. Detailed Implementation

[0049] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0050] Example 1:

[0051] Please see Figures 1 to 7 In this embodiment of the invention, a wheat seed sorting device includes a base 1 and a sorting box 4. An elastic support component is fixedly connected between the bottom surface of the sorting box 4 and the top surface of the base 1. A dual-axis vibration motor 9 is fixedly installed on the top surface of the sorting box 4, and a feeding mechanism is also fixedly installed on the top surface of the base 1. Both the top and bottom surfaces of the sorting box 4 are inclined, and the included angle between the top and bottom surfaces of the sorting box 4 is an acute angle. A feed inlet 34 is opened on the top surface of the sorting box 4 near the higher end. A discharge trough 10 is fixedly installed through the end surface of the sorting box 4 away from the feed inlet 34 near the top. A discharge trough 2 15, a discharge trough 3 16, and a discharge trough 4 17 are fixedly installed through the end surface of the sorting box 4 near the feed inlet 34 from top to bottom in the middle and lower part.

[0052] The sorting box 4 is equipped with a material guiding mechanism, a second screen 28 and a first screen 27 in sequence from top to bottom. The material guiding mechanism is parallel to the top surface of the sorting box 4, and the second screen 28 and the first screen 27 are parallel to the bottom surface of the sorting box 4.

[0053] The material guiding assembly includes a material guiding plate 32 that slides in contact with the inner wall of the sorting box 4. The material guiding plate 32 has sliding rods 41 that are slidably installed through it near the four corners. The top and bottom ends of the sliding rods 41 are fixedly connected to the inner wall of the sorting box 4. The lower end of the material guiding plate 32 is provided with a material discharge slot 39.

[0054] A lifting assembly is fixedly connected to the bottom of the guide plate 32 and is rotatably installed between the two sides of the sorting box 4;

[0055] The guide plate 32 is a hollow structure. Multiple distributed protrusions 33 are fixedly installed on the top surface of the guide plate 32. Air outlet slots 52 that communicate with the interior of the guide plate 32 are opened in the protrusions 33. A pipe joint 31 is fixedly connected to the bottom surface of the guide plate 32. A blowing assembly located outside the sorting box 4 is fixedly connected to the end of the pipe joint 31 away from the guide plate 32.

[0056] In this design, the axis of the protruding post 33 is perpendicular to the top surface of the guide plate 32. The portion of the air outlet hole 52 away from the guide plate 32 has an upward-bent structure. One end of the air outlet hole 52 away from the guide plate 32 is located on the outer periphery of the protruding post 33, and this end is aligned with the direction closest to the discharge trough 10. The outlet direction of the air outlet hole 52 is offset from the wheat seed flow path (at an angle of 30°-45°) to prevent seeds from falling into the hole.

[0057] One end of the dual-axis vibration motor 9 is fixedly connected to a drive shaft, and a bearing seat 18 is fixedly installed on the top surface of the sorting box 4 around the drive shaft. The end of the drive shaft away from the dual-axis vibration motor 9 is fixedly installed with a drive pulley 19 and a drive pulley 21.

[0058] The feeding mechanism includes two support plates 5 fixedly installed on the top surface of the base 1. The top ends of the two support plates 5 are fixedly connected to an installation plate 6 located directly above the feed inlet 34. A hopper 7 is fixedly installed through the installation plate 6. A corrugated guide pipe 8 is fixedly connected between the bottom end of the hopper 7 and the feed inlet 34.

[0059] The rear end of the mounting plate 6 is fixedly connected to a boss 13 for mounting the blower assembly.

[0060] The blowing assembly includes a blower 14 fixed on the boss 13. The outlet of the blower 14 is fixedly connected to a telescopic hose 12. The end of the telescopic hose 12 away from the blower 14 is fixedly connected to a conduit 11. The end of the conduit 11 away from the telescopic hose 12 is fixedly penetrated through the side of the sorting box 4 to the interior of the sorting box 4. The conduit 11 is located between the guide plate 32 and the second screen 28. The end of the conduit 11 located in the sorting box 4 is fixedly connected to a telescopic hose 30 between the conduit 11 and the pipe joint 31.

[0061] The support assembly includes springs 3. Springs 3 are fixedly connected to the bottom surface of the sorting box 4 near the four corners. The springs 3 are perpendicular to the top surface of the base 1.

[0062] A support rod 2 is fixedly connected between the bottom end of the spring 3 and the top surface of the base 1.

[0063] Wheat seed sorting is a crucial step in agricultural research and production, directly affecting sowing uniformity, germination rate, and final yield. Currently, the mainstream wheat seed sorting technology is a combination of vibration and air separation. However, existing sorting equipment suffers from short air separation time during seed drop and uneven seed distribution, preventing airflow from effectively penetrating the seeds and resulting in insufficient separation of lightweight impurities (such as empty husks and straw fragments).

[0064] When using this invention:

[0065] Start the dual-axis vibration motor 9 and blower 14. The dual-axis vibration motor 9, together with the spring 3, realizes the vibration of the entire sorting box 4. Then, pour the wheat seeds into the hopper 7. The wheat seeds in the hopper 7 enter the sorting box 4 through the corrugated guide pipe 8 and fall onto the higher end of the guide plate 32. Then, under the vibration and inclination of the guide plate 32, the wheat seeds on the guide plate 32 move towards the direction of the discharge trough 39.

[0066] As the wheat seeds move on the guide plate 32, the multiple evenly arranged protrusions 33 effectively change the flow path of the particles, reduce aggregation, and improve the uniformity of the wheat seed distribution on the guide plate 32. At the same time, the blower 14 supplies air to the guide plate 32 through the first telescopic hose 12, the guide tube 11, and the second telescopic hose 30. The airflow in the guide plate 32 is blown out through the air outlet hole 52, and the blowing direction is obliquely upward. Combined with the vibration of the guide plate 32, it can effectively blow up light impurities. The blown light impurities move to the discharge trough 10 under the guidance of the wind and the top surface of the sorting box 4, and are finally discharged.

[0067] Therefore, in this invention, the setting of the guide plate 32 can effectively extend the wind separation time of wheat seeds, and the combination of the protruding column 33 and the blowing component can improve the uniformity of wheat seed distribution on the guide plate 32 while realizing the wind separation function. Combined with the vibration of the wheat seeds, the penetration performance of the airflow into the wheat seeds can be effectively improved, thereby improving the performance of wind separation and impurity removal.

[0068] The design of the air outlet 52 allows the protruding post 33 to improve the uniformity of wheat seed distribution while also functioning as an airflow nozzle for air separation. Furthermore, the bent design of the air outlet 52, in conjunction with the top surface of the sorting box 4, guides lightweight impurities into the discharge trough 10 for discharge. Moreover, by aligning the air outlet of the air outlet 52 with the discharge trough 10, fallen wheat seeds and impurities are prevented from entering the air outlet 52, providing excellent anti-clogging performance and thus improving the operational stability of the invention.

[0069] Example 2:

[0070] Please see Figures 2-5 , Figure 7 and Figure 8 Based on embodiment 1, the lifting assembly includes a hanging plate 37 and a rotating shaft 26. The rotating shaft 26 is rotatably installed between the two sides of the sorting box 4. A cam 35 is fixedly installed at the center of the outer periphery of the rotating shaft 26. Both ends of the cam 35 are provided with drive grooves 36.

[0071] There are two hanging plates 37. Both hanging plates 37 are fixedly installed on the bottom surface of the guide plate 32. The two hanging plates 37 are located at both ends of the cam 35. The side of the hanging plate 37 near the cam 35 is rotatably connected to the bottom end of the optical shaft 38, which is parallel to the rotating shaft 26. The end of the optical shaft 38 away from the hanging plate 37 is inserted into the corresponding drive groove 36. The outer periphery of the optical shaft 38 is in sliding contact with the inner wall of the drive groove 36.

[0072] After the shaft 26 rotates through the side of the sorting box 4 near the bearing seat 18, a driven pulley 25 is fixedly installed. A belt 22 is installed between the driven pulley 25 and the driving pulley 21.

[0073] During operation, the dual-axis vibration motor 9 drives the active pulley 21 to rotate. The active pulley 21 drives the driven pulley 25 to rotate via the belt 22. The driven pulley 25 drives the rotating shaft 26 to rotate. The rotating shaft 26 drives the cam 35 to rotate. The rotation of the cam 35, in conjunction with the optical shaft 38 and the hanging plate 37, can drive the guide plate 32 to perform vertical reciprocating lifting and lowering motion under the vertical limiting action of the four slide rods 41. Therefore, during the movement of wheat seeds on the guide plate 32, vertical throwing motion is superimposed on the vibration, amplifying the difference in movement between impurities and plump seeds. During the throwing process, light impurities are more easily captured by the airflow, while heavy seeds fall back quickly, improving the separation accuracy.

[0074] Example 3:

[0075] Please see Figures 2-5 Based on embodiment 2, rollers 24 are provided in the discharge trough 10 and the sorting box 4 near the feed inlet 34. The rollers 24 in the discharge trough 10 are installed between the two sides of the discharge trough 10, and the rollers 24 in the discharge trough 10 are located at the upper part of the discharge trough 10.

[0076] The rollers 24 in the sorting box 4 are rotatably installed between the two sides of the sorting box 4. A conveyor belt 29 is installed between the two rollers 24 and is parallel to the top surface of the sorting box 4. The width of the conveyor belt 29 is equal to the width of the top surface of the sorting box 4.

[0077] The roller shaft 24 located in the discharge trough 10 has a driven pulley 23 fixedly installed at one end near the bearing seat 18 after rotating through the side of the discharge trough 10. A belt 20 is installed between the driven pulley 23 and the driving pulley 19.

[0078] An inclined scraper 53 is fixedly connected to the inner top surface of the discharge trough 10, and the front end of the scraper 53 slides in contact with the outer surface of the conveyor belt 29.

[0079] The dual-axis vibration motor 9 also drives the active pulley 19 to rotate. The active pulley 19 drives the roller 24 to rotate through the belt 20 and the driven pulley 23, thereby causing the conveyor belt 29 to move at the top of the sorting box 4. This arrangement allows the blown impurities to come into contact with the conveyor belt 29. The conveying of the conveyor belt 29, combined with the air force, can stably guide the impurities into the discharge trough 10, preventing the accumulation of impurities on the top of the sorting box 4. At the same time, the scraper 53 can scrape off the impurities attached to the surface of the conveyor belt 29 in conjunction with the movement of the conveyor belt 29, thereby improving the stability of impurity discharge and giving the conveyor belt 29 a self-cleaning function, thus improving the practicality of the invention.

[0080] Example 4:

[0081] Please see Figure 9 and Figure 10 Based on embodiment 2, the second screen 28 includes a screen plate 42, and the top surface of the screen plate 42 is provided with a plurality of rectangular arrayed screen holes 49, and the screen holes 49 are rectangular holes.

[0082] L-shaped limiting plates 44 are fixedly installed on both sides of the top surface of the sieve plate 42. A rectangular frame 43 is also slidably installed on the top surface of the sieve plate 42. The two sides of the rectangular frame 43 are respectively located in the two L-shaped limiting plates 44. Multiple arrayed baffles 48 are fixedly connected between the two length sides of the rectangular frame 43 along its length direction. Multiple arrayed baffles 47 are fixedly connected between the two width sides of the rectangular frame 43 along its length direction. The baffles 47 and the baffles 48 are used to control the width and length of the sieve hole 49, respectively.

[0083] A screw 45 is threaded through and installed in the middle of the outer side of the L-shaped limiting plate 44. One end of the screw 45 located in the L-shaped limiting plate 44 is rotatably connected to an abutment plate 50 located between the top surface of the L-shaped limiting plate 44 and the sieve plate 42. The abutment plate 50 slides in contact with the L-shaped limiting plate 44 and the sieve plate 42. A knob is fixedly installed on one end of the screw 45 located outside the L-shaped limiting plate 44.

[0084] Both ends of the top surface of the L-shaped limiting plate 44 are threaded with bolts 46, and friction pads 51 are rotatably mounted on the front end of the bolts 46.

[0085] Among them, the rectangular frame 43, the baffle 47, and the sieve hole 49 form a mesh-like blocking element on the top surface of the sieve plate 42, such as... Figure 9 As shown, the upward movement of the rectangular frame 43 causes multiple baffles 47 to block the sieve hole 49, thereby adjusting the width of the sieve hole 49. Similarly, the leftward movement of the rectangular frame 43 causes baffles 48 to block the sieve hole 49, thereby adjusting the length of the sieve hole 49. Therefore, by translating the rectangular frame 43, the length and width of the sieve hole 49 can be adjusted within a certain range.

[0086] Specifically, during vertical translation, loosen bolt 46, rotate the upper screw 45 to separate the upper contact plate 50 from the rectangular frame 43, then rotate the lower screw 45 to move the lower contact plate 50 upwards until the rectangular frame 43 contacts the upper contact plate 50, thus completing the vertical translation of the rectangular frame 43; during horizontal translation, loosen bolt 46, and then directly translate the rectangular frame 43 left and right.

[0087] Therefore, the second screen 28 adopts an adjustable screen hole structure. The screw drives the contact plate and bolt to lock, realizing the vertical / horizontal translation of the rectangular frame and precisely controlling the effective opening of the screen hole (such as the adjustment range of 5-10mm). The screen hole parameters can be adjusted by simply turning the screw and bolt, without the need to replace the screen, which significantly improves the versatility of the equipment.

[0088] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A wheat seed sorting device, comprising a base (1) and a sorting box (4), wherein a feeding mechanism is fixedly installed on the base (1), characterized in that: The sorting box (4) is connected to the base (1) by an elastic support assembly. The top and bottom surfaces of the sorting box (4) are inclined, and a dual-axis vibration motor (9) is installed on the top surface. The top of the sorting box (4) has a feed inlet (34), and the end away from the feed inlet (34) is provided with a discharge trough one (10). The end near the feed inlet (34) is provided with a discharge trough two (15), a discharge trough three (16) and a discharge trough four (17) from top to bottom. The sorting box (4) is provided with a material guiding mechanism, a second screen (28) and a first screen (27) arranged in layers from top to bottom. The material guiding mechanism is arranged parallel to the top surface of the sorting box, and the second screen (28) and the first screen (27) are arranged parallel to the bottom surface. The material guiding mechanism includes a material guiding plate (32) that slides with the inner wall of the sorting box. Its four corners are connected to the protrusions (40) on the inner wall of the box via sliding rods (41) to form a sliding pair. The material guiding plate (32) has a material discharge slot (39) at its lower end and a lifting component directly below it. The guide plate (32) adopts a hollow cavity structure, with protruding pillars (33) with air outlet slots (52) distributed in an array on the top surface, and the bottom surface is connected to an external blowing assembly through a pipe joint (31); The air outlet slot (52) forms a bent air channel inside the protruding column, and the outlet end faces the direction of the discharge slot (10); The axis of the protruding post (33) is perpendicular to the top surface of the guide plate (32). The part of the air outlet hole (52) away from the guide plate (32) is bent upward. One end of the air outlet hole (52) away from the guide plate (32) is located on the periphery of the protruding post (33), and the end of the air outlet hole (52) away from the guide plate (32) is aligned with the direction close to the discharge trough (10). One end of the dual-axis vibration motor (9) is fixedly connected to a transmission shaft. A bearing seat (18) is fixedly installed on the outer periphery of the transmission shaft on the top surface of the sorting box (4). The end of the transmission shaft away from the dual-axis vibration motor (9) is fixedly installed with a first drive pulley (19) and a second drive pulley (21). The lifting assembly includes a lifting plate (37) and a rotating shaft (26). The rotating shaft (26) is rotatably mounted between the two sides of the sorting box (4). A cam (35) is fixedly mounted at the center of the outer periphery of the rotating shaft (26). Both ends of the cam (35) are provided with drive grooves (36). There are two lifting plates (37). Both lifting plates (37) are fixedly mounted on the bottom surface of the guide plate (32). The two lifting plates (37) are located at the two ends of the cam (35). The sides of the lifting plates (37) near the cam (35) are on the bottom. A light shaft (38) is rotatably connected to the end position and is arranged parallel to the rotating shaft (26). The end of the light shaft (38) away from the hanging plate (37) is inserted into the drive groove (36) at the corresponding position. The outer periphery of the light shaft (38) is in sliding contact with the inner wall of the drive groove (36). The end of the rotating shaft (26) near the bearing seat (18) is rotated through the side of the sorting box (4) and then fixedly installed with a driven pulley (25). A belt (22) is installed between the driven pulley (25) and the driving pulley (21). Both the discharge trough (10) and the sorting box (4) are equipped with rollers (24) near the inlet (34). The rollers (24) in the discharge trough (10) are installed between the two sides of the discharge trough (10) and are located at the upper part of the discharge trough (10). The rollers (24) in the sorting box (4) are rotatably installed between the two sides of the sorting box (4). A conveyor belt (29) is installed between the top surfaces of the sorting box (4) and parallel to the top surface of the sorting box (4). The width of the conveyor belt (29) is equal to the width of the top surface of the sorting box (4). The roller shaft (24) located in the discharge trough (10) rotates through the side of the discharge trough (10) and is fixedly installed with a driven pulley (23). A belt (20) is installed between the driven pulley (23) and the driving pulley (19). The second screen (28) includes a screen plate (42), the top surface of which is provided with a plurality of rectangularly arranged screen holes (49), the screen holes (49) being rectangular holes; L-shaped limiting plates (44) are fixedly installed on both sides of the top surface of the screen plate (42), and a rectangular frame (43) is also slidably installed on the top surface of the screen plate (42), the two sides of the rectangular frame (43) being located in the two L-shaped limiting plates (44) respectively, a plurality of arrayed baffles (48) are fixedly connected between the two length sides of the rectangular frame (43) along its length direction, and a plurality of arrayed baffles (47) are fixedly connected between the two width sides of the rectangular frame (43) along its length direction, the baffles (47) being... The second baffle (48) is used to control the width and length of the sieve hole (49); a screw (45) is threaded through the middle of the outer side of the L-shaped limiting plate (44), and one end of the screw (45) in the L-shaped limiting plate (44) is rotatably connected to an abutment plate (50) between the top surface of the L-shaped limiting plate (44) and the sieve plate (42). The abutment plate (50) slides in contact with the L-shaped limiting plate (44) and the sieve plate (42). A knob is fixedly installed at one end of the screw (45) outside the L-shaped limiting plate (44); bolts (46) are threaded through the top surface of the L-shaped limiting plate (44) at both ends, and a friction pad (51) is rotatably installed at the front end of the bolt (46).

2. The wheat seed sorting device according to claim 1, characterized in that, An inclined scraper (53) is fixedly connected to the inner top surface of the discharge trough (10), and the front end of the scraper (53) slides in contact with the outer surface of the conveyor belt (29).

3. The wheat seed sorting device according to claim 1, characterized in that, The feeding mechanism includes two support plates (5) fixedly installed on the top surface of the base (1). The top ends of the two support plates (5) are fixedly connected to an mounting plate (6) located directly above the feed inlet (34). A hopper (7) is fixedly installed through the mounting plate (6). A corrugated guide pipe (8) is fixedly connected between the bottom end of the hopper (7) and the feed inlet (34). A boss (13) for installing the blower assembly is fixedly connected to the tail end of the mounting plate (6).

4. The wheat seed sorting device according to claim 3, characterized in that, The blowing assembly includes a blower (14) fixed on the boss (13). The outlet of the blower (14) is fixedly connected to a first telescopic hose (12). The end of the first telescopic hose (12) away from the blower (14) is fixedly connected to a conduit (11). The end of the conduit (11) away from the first telescopic hose (12) is fixedly penetrated through the side of the sorting box (4) to the interior of the sorting box (4). The conduit (11) is located between the guide plate (32) and the second screen (28). The end of the conduit (11) located in the sorting box (4) is fixedly connected to the pipe joint (31) with a second telescopic hose (30).

5. The wheat seed sorting device according to claim 1, characterized in that, The support assembly includes a spring (3), and the spring (3) is fixedly connected to the bottom surface of the sorting box (4) at the four corners. The spring (3) is perpendicular to the top surface of the base (1). A support rod (2) is fixedly connected between the bottom end of the spring (3) and the top surface of the base (1).

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