A fully automatic beet seed specific gravity selection device and method

Abstract

This invention provides a fully automatic sugar beet seed specific gravity sorting device and method, relating to the technical field of seed selection and screening devices. It includes: a base; a sorting box with several equally spaced sorting chambers, each with a sloping groove at its bottom; a sorting disc movably positioned above a feeding inclined plate; a specific gravity sorting plate, its angle adjustable and installed within the sorting disc; and a feeding mechanism including a feeding hopper, a lifting mechanism, and a translational drive base. Seeds stored in the sorting chambers slide down the sloping groove under gravity and fall back into the feeding hopper for multiple sorting operations. This invention can quantitatively feed seeds and automatically complete the re-sorting of seeds after initial sorting. The entire sorting process requires minimal manual intervention, reducing the burden of manual sorting while improving sorting quality and efficiency, making it suitable for widespread application in the seed selection field.

Description

Technical Field

[0001] This invention relates to the field of seed selection and screening equipment, specifically to a fully automatic beet seed specific gravity selection device and method. Background Technology

[0002] A prior art rice seed specific gravity sorting device, disclosed in patent number CN211217490U, includes a sorting box. A feed inlet is fixedly installed at the upper end of the sorting box, and the lower end of the feed inlet passes through the upper end of the sorting box and extends into the interior of the sorting box. First support frames are fixedly installed at the front and rear ends of the sorting box. A discharge port is fixedly provided at the lower end of the sorting box, and the upper end of the discharge port passes through the sorting box and extends into the interior of the sorting box. A second support base is rotatably installed below the sorting box. A conveyor belt is rotatably installed on the upper end of the second support base, and the conveyor belt is located directly below the discharge port. A drive motor is fixedly installed at the right end of the conveyor belt at the front end of the second support base, and the drive motor is fixedly connected to the conveyor belt. This rice seed specific gravity sorting device has high sorting accuracy, can achieve quantitative sorting, and has a simple structure and low cost. It is suitable for specific gravity sorting of various types of granular seeds.

[0003] However, the device still has some obvious defects in use: during the feeding process, the material to be screened needs to be continuously fed to the vibrating plate by human hands, but manual feeding will lead to unstable feeding rate, which will affect the sorting effect. In addition, seeds usually need to be sorted twice or even more, but the secondary sorting operation of the device still needs to be carried out manually, which increases the sorting difficulty and manpower burden. Summary of the Invention

[0004] The purpose of this invention is to provide a fully automatic beet seed specific gravity selection device and method to solve the problems mentioned in the background art.

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

[0006] A fully automatic sugar beet seed specific gravity selection device includes:

[0007] A base on which a selection box is fixedly mounted;

[0008] The sorting box has several equally spaced sorting chambers inside. The bottom of each sorting chamber has a sloping groove slide. Several discharge holes are also opened through the plate on one side of the bottom of the sloping groove slide of the sorting box. Each discharge hole corresponds to a sorting chamber. Each discharge hole is equipped with a discharge baffle that is lifted and lowered. The discharge baffles are connected to the sorting box by a closing spring. The closing spring pushes the discharge baffle upward without external force to block the discharge hole. A pushing claw is also fixedly installed on the discharge baffle.

[0009] A feeding ramp is fixedly installed above the sorting box. The feeding ramp has a number of feeding channels that are the same as the number of sorting chambers and correspond one-to-one with the feeding channels. The feeding channels are located on the side away from the feeding hole.

[0010] The sorting disc is movably mounted above the feeding inclined plate. Multiple partition blocks are also fixedly installed on the side of the sorting disc near the feeding channel. The partition blocks are used to block and isolate several feeding channels. Assembly holes are also provided on the inner side of the sorting disc for installing gravity sorting plates. Magnetic attraction blocks are also fixedly installed on the outer plate of the sorting disc on the side away from the partition blocks.

[0011] A gravity sorting plate, the angle of which is adjustable and installed inside the sorting disc; and...

[0012] The feeding mechanism includes a feeding hopper, a lifting mechanism, and a translation drive base. The translation drive base is movably coupled with a track bar installed on the base via a track groove opened at the bottom. The feeding hopper has a screening feeding hole on the side near the sorting plate, and a quantitative feeding mechanism is installed in the screening feeding hole. A vibration motor is also fixedly installed at the bottom of the feeding hopper. An electromagnetic adsorption block is fixedly installed on the drive shaft of the vibration motor. The electromagnetic adsorption block and the magnetic adsorption block are magnetically coupled, thereby transmitting the vibration generated by the vibration motor to the sorting plate, which in turn drives the sorting plate to perform sorting vibration. A push block is also fixedly installed on the side of the feeding hopper near the selection box. The push block is movably coupled with a push claw. When the push block descends and drives the push claw downward, the feeding baffle overcomes the elastic force of the closing spring, causing the feeding hole to open. At this time, the seeds stored in the corresponding sorting chamber slide down the inclined groove slide under the action of gravity and fall back into the feeding hopper for multiple sorting operations.

[0013] Preferably, screening springs are fixedly installed on both sides of the sorting box, and L-shaped connecting plates are correspondingly installed on both sides of the sorting disc, with the end of the L-shaped connecting plate away from the sorting disc fixedly connected to the screening spring.

[0014] Preferably, the lifting mechanism that drives the hopper to rise and fall is a hydraulic telescopic cylinder or a screw lifting mechanism.

[0015] Preferably, the quantitative feeding mechanism includes a screw sleeve, which is fixedly installed in the screening feeding hole. A feeding screw is rotatably installed in the screw sleeve, and the feeding screw is fixedly connected to the drive shaft of a stepper motor. The stepper motor is fixedly installed in the feeding hopper. The rotation of the stepper motor drives the screw sleeve to rotate, thereby performing the feeding operation.

[0016] Preferably, each of the inclined grooves in the selection box is equipped with a corresponding imitation vibration plate. The upper and lower sides of the imitation vibration plate are connected to vibration springs. The vibration springs are movably installed in the spring holes in the selection box. The side of the vibration spring away from the imitation vibration plate abuts against a limiting block. The limiting block engages with the internal thread at the bottom of the spring hole through an external thread. A vibration rod is also inserted into the spring hole near the hopper. The upper end of the vibration rod is fixedly connected to the imitation vibration plate, and the lower end of the vibration rod extends to the outside of the selection box through the through hole in the limiting block.

[0017] Preferably, a magnetic vibration block is fixedly installed at the end of the vibrating rod away from the imitation vibration inclined plate. The magnetic vibration block and the electromagnetic adsorption block are magnetically coupled. The vibration generated by the electromagnetic adsorption block drives the imitation vibration inclined plate to vibrate synchronously, thereby causing the seeds to slide down the slope of the imitation vibration inclined plate and enter the hopper.

[0018] Preferably, an angle adjustment groove is provided through one side of the sorting disc, and a limiting screw is movably inserted in the angle adjustment groove. The limiting screw is fixedly installed on the side of the gravity sorting plate away from the assembly hole. An abutment limiting block is also threadedly installed on the limiting screw. By rotating the abutment limiting block against the side of the sorting disc, the gravity sorting plate is limited and fixed.

[0019] Preferably, a feeding guide plate is also installed on the feeding hopper at the bottom of the screening feeding hole in a fixed-axis rotatable manner. The feeding guide plate is adjusted in orientation under the drive of a deflection motor, and the deflection motor is fixedly installed at the bottom of the feeding hopper.

[0020] A fully automated method for selecting sugar beet seeds by specific gravity, using the aforementioned fully automated sugar beet seed specific gravity selection device, includes the following steps:

[0021] Step 1: Empty the sorting chamber, sorting plate and feeding hopper, and put the seeds to be screened into the feeding hopper;

[0022] Step 2: Adjust the tilt angle of the gravity sorting plate to meet the sorting requirements of the corresponding type of seed;

[0023] Step 3: The lifting mechanism drives the hopper to move to the screening and feeding position. At this time, the electromagnetic adsorption block and the magnetic attraction block are magnetically engaged to keep the hopper fixed. Then, the quantitative feeding mechanism feeds the hopper quantitatively and the vibration motor is turned on at the same time. The vibration motor drives the sorting disc to vibrate, so that the seeds enter the corresponding sorting chamber through the feeding channel during the vibration process until all seeds are sorted once.

[0024] Step 4: After the first sorting is completed, the driving translation base and lifting mechanism move, so that the feeding hopper reaches the material picking position. At this time, the pushing block and pushing claw installed on the feeding hopper cooperate and push the feeding baffle to move downward so that the feeding hole opens. At this time, the seeds stored in the corresponding sorting chamber slide down the inclined groove slide under the action of gravity and fall into the feeding hopper again. After all the seeds in a single sorting chamber have fallen, the feeding hopper moves to the feeding position again and performs secondary screening in the manner of step 3.

[0025] Step 5: Repeat Step 4 to perform material feeding and secondary screening in each sorting chamber in sequence until the secondary screening operation of all sorting chambers is completed.

[0026] Compared with the prior art, the beneficial effects of the present invention are:

[0027] This invention can quantitatively deliver seeds and automatically complete the re-sorting of seeds after sorting. The entire sorting process does not require much manual intervention, reducing the burden of manual sorting while improving the quality and efficiency of sorting. It is suitable for widespread promotion in the field of seed selection. Attached Figure Description

[0028] Figure 1 This is an exploded view of the overall structure of the present invention;

[0029] Figure 2 This is a schematic diagram of the feeding hopper in the material receiving position according to the present invention;

[0030] Figure 3 This is a schematic diagram of the feeding hopper in the feeding position according to the present invention;

[0031] Figure 4 This is a cross-sectional view and a partially enlarged structural schematic diagram of the present invention;

[0032] Figure 5 This is a schematic diagram of the open state of the feed hole in one of the present invention.

[0033] Figure 6 This is a schematic diagram of the installation position and connection structure of the contour vibration inclined plate of the present invention;

[0034] Figure 7 This is a schematic diagram of the sorting chamber and inclined groove slide of the present invention;

[0035] Figure 8 This is a schematic diagram of the limiting screw and its connection structure according to the present invention.

[0036] In the diagram: 1. Base, 2. Selecting box, 3. Separating chamber, 4. Inclined groove slide, 5. Discharge hole, 6. Discharge baffle, 7. Push claw, 8. Discharge inclined plate, 9. Discharge channel, 10. Separating plate, 11. Divider block, 12. Assembly hole, 13. Gravity separation plate, 14. Magnetic attraction block, 15. Discharge hopper, 16. Translation drive base, 17. Track groove, 18. Track bar, 19. Vibration motor, 20. Electromagnetic adsorption block, 21. Push block, 22. Screening spring, 23. L-shaped connecting plate, 24. Hydraulic telescopic cylinder, 25. Screw sleeve, 26. Discharge screw, 27. Stepper motor, 28. Imitative vibration inclined plate, 29. Vibration spring, 30. Limiting block, 31. Vibration rod, 32. Magnetic vibration block, 33. Angle adjustment groove, 34. Limiting screw, 35. Abutting limiting block, 36. Screening discharge hole, 37. Discharge guide plate. Detailed Implementation

[0037] 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.

[0038] Please see Figure 1-8 The present invention provides a technical solution:

[0039] Example 1:

[0040] A fully automatic sugar beet seed specific gravity selection device includes:

[0041] Base 1, on which a selection box 2 is fixedly installed;

[0042] The sorting box 2 has several equally spaced sorting chambers 3 inside. The bottom of the sorting chambers 3 has a sloping groove slide 4. Several discharge holes 5 are also opened through the plate on one side of the bottom of the sloping groove slide 4 in the sorting box 2. The discharge holes 5 correspond one-to-one with the sorting chambers 3. Each discharge hole 5 is equipped with a discharge baffle 6 installed in a lifting manner. The discharge baffle 6 is connected to the sorting box 2 through a closing spring. The closing spring pushes the discharge baffle 6 upward without external force to block the discharge hole 5. A pushing claw 7 is also fixedly installed on the discharge baffle 6.

[0043] The feeding inclined plate 8 is fixedly installed above the sorting box 2. The feeding baffle 6 has a number of feeding channels 9 that are the same as and correspond one-to-one with the sorting chamber 3. The feeding channels 9 are located on the side away from the feeding hole 5.

[0044] The sorting disc 10 is movably set above the feeding inclined plate 8. Multiple partition blocks 11 are also fixedly installed on the side of the sorting disc 10 near the feeding channel 9. The partition blocks 11 are used to block and isolate several feeding channels 9. The inner side of the sorting disc 10 is also provided with assembly holes 12 for the installation of gravity sorting plates 13. Magnetic attraction blocks 14 are also fixedly installed on the outer plate of the sorting disc 10 away from the partition blocks 11.

[0045] Gravity separation plate 13, the angle of which is adjustable, is installed inside the separation disk 10; and...

[0046] The feeding mechanism includes a feeding hopper 15, a lifting mechanism, and a translation drive base 16. The translation drive base 16 is movably engaged with a track bar 18 mounted on the base 1 via a track groove 17 at its bottom. The feeding hopper 15 has a screening feeding hole 36 on the side near the sorting plate 10, and a quantitative feeding mechanism is installed inside the screening feeding hole 36. A vibration motor 19 is also fixedly installed at the bottom of the feeding hopper 15. An electromagnetic adsorption block 20 is fixedly installed on the drive shaft of the vibration motor 19, and the electromagnetic adsorption block 20 is magnetically engaged with a magnetic attraction block 14. The vibration generated by the vibrating motor 19 is transmitted to the sorting disc 10, which in turn drives the sorting disc 10 to perform sorting vibration. A push block 21 is also fixedly installed on the side of the feeding hopper 15 near the selection box 2. The push block 21 and the push claw 7 are in movable cooperation. When the push block 21 descends and drives the push claw 7 to move downward, the feeding baffle 6 overcomes the elastic force of the closed spring and makes the feeding hole 5 open. At this time, the seeds stored in the corresponding sorting chamber 3 slide down the inclined groove slide 4 under the action of gravity and fall back into the feeding hopper 15 for multiple sorting operations.

[0047] In this embodiment, the base 1 serves as the supporting structure for various components, and the sorting box 2 is fixedly installed on the base 1. The sorting box 2 contains several equally spaced sorting chambers 3. In this embodiment, a structure of four sorting chambers 3 is used. A sloping groove slide 4 is provided at the bottom of each sorting chamber 3. This design facilitates the downward flow of seeds. Therefore, several discharge holes 5 are also provided through the plate on one side of the bottom of the sloping groove slide 4. Seeds fall from the sorting chamber 3 through these discharge holes 5. To prevent the sorted seeds from falling randomly, a discharge baffle 6 is also installed at the discharge hole 5 in a lifting manner. The discharge baffle 6 is connected to the sorting box 2 via a sealing spring. A spring is used to ensure that the feeding hole 5 is closed when no external force is applied. A pushing claw 7 is provided at the bottom of the feeding baffle 6. By pushing the pushing claw 7 downward, the limiting effect of the feeding baffle 6 on the feeding hole 5 is released. A feeding ramp 8 is provided above the sorting box 2. The feeding baffle 6 has four feeding channels 9 that are the same number as the sorting chambers 3 and correspond one-to-one. Seeds fall into the corresponding sorting chambers 3 through the corresponding feeding channels 9. The sorting disc 10 is movably installed above the feeding ramp 8. The reciprocating vibration of the sorting disc 10 causes the seeds on it to enter the corresponding sorting disc 10. Three separators are also fixedly installed on the side of the sorting disc 10 near the feeding channel 9. Block 11 blocks and isolates adjacent feeding channels 9 to prevent seeds from mistakenly entering the corresponding sorting chamber 3. An assembly hole 12 is also provided inside the sorting disc 10, on which a gravity sorting plate 13 is mounted in a rotating manner. This gravity sorting plate 13 can be angled to allow for the screening of different types of seeds. A magnetic attraction block 14 is provided on the side of the sorting disc 10 to cooperate with an electromagnetic adsorption block 20 installed on the feeding hopper 15. This electromagnetic adsorption block 20 is an electrically driven magnet structure; when energized, it generates magnetic force and attracts the magnetic attraction block 14. Conversely, when the energization is deactivated, the magnetic adsorption is released. The hopper 15 is part of the feeding mechanism, which also includes a lifting mechanism and a translation drive base 16. The translation drive base 16 performs precise lateral translation and sliding through a built-in wheel drive mechanism, thereby driving the lifting mechanism and the feeding hopper 15 fixedly connected to it to move. The lifting mechanism is a hydraulic telescopic cylinder 24 or a screw lifting mechanism; other lifting drive mechanisms can also be used, all without departing from the protection scope of this application. The translation drive base 16 and the lifting mechanism drive the feeding hopper 15 to translate in the Y-axis and Z-axis directions, thus enabling the feeding hopper 15 to have two working modes: picking up and discharging. When it is in the discharging working mode, refer to the appendix of the instruction manual. Figure 3 In this state, the seeds in the hopper 15 are quantitatively fed into the sorting disc 10 for screening and feeding. When in the material handling mode, refer to the instruction manual. Figure 2In this state, the hopper 15 is located below the discharge hole 5. At this time, the discharge baffle 6 is opened, and the seeds in the sorting chamber 3 can fall into the hopper 15 under the action of gravity for screening again.

[0048] Example 2:

[0049] Screening springs 22 are fixedly installed on both sides of the sorting box 2, and L-shaped connecting plates 23 are installed on both sides of the sorting disc 10. The end of the L-shaped connecting plate 23 away from the sorting disc 10 is fixedly connected to the screening springs 22.

[0050] In this embodiment, the sorting box 2 and the sorting disc 10 are connected by a screening spring 22 and an L-shaped connecting plate 23. The screening spring 22 is used to improve the stability of the sorting disc 10 during vibration.

[0051] Example 3:

[0052] The quantitative feeding mechanism includes a screw sleeve 25, which is fixedly installed inside the screening and feeding hole 36. A feeding screw 26 is rotatably installed inside the screw sleeve 25. The feeding screw 26 is fixedly connected to the drive shaft of a stepper motor 27. The stepper motor 27 is fixedly installed inside the feeding hopper 15. The rotation of the stepper motor 27 drives the screw sleeve 25 to rotate, thereby performing the feeding operation.

[0053] In this embodiment, the stepper motor 27 drives the feeding screw 26 to rotate within the screw sleeve 25, thereby enabling precise adjustment of the seed release rate. This allows the screening process to be adjusted according to the screening conditions, ensuring the smooth progress of the screening process.

[0054] Example 4:

[0055] Each of the inclined grooves 4 in the selection box 2 is equipped with a corresponding imitation vibration plate 28. The upper and lower sides of the imitation vibration plate 28 are connected to the vibration spring 29. The vibration spring 29 is movably installed in the spring hole in the selection box 2. The side of the vibration spring 29 away from the imitation vibration plate 28 abuts against the limiting block 30. The limiting block 30 is engaged with the internal thread at the bottom of the spring hole through the external thread. A vibration rod 31 is also inserted into the spring hole near the hopper 15. The upper end of the vibration rod 31 is fixedly connected to the imitation vibration plate 28, and the lower end of the vibration rod 31 extends to the outside of the selection box 2 through the through hole in the limiting block 30.

[0056] In this embodiment, the contoured vibrating inclined plate 28 is movably installed in the inclined groove slide 4 by the vibration springs 29 on the upper and lower sides, and a vibrating rod 31 is provided on the side near the feed hopper 15. The seeds can be made to fall from the sorting chamber 3 by manually pulling the vibrating rod 31.

[0057] Example 5:

[0058] A magnetic vibration block 32 is fixedly installed at the end of the vibrating rod 31 away from the imitation vibration inclined plate 28. The magnetic vibration block 32 is magnetically engaged with the electromagnetic adsorption block 20. The vibration generated by the electromagnetic adsorption block 20 drives the imitation vibration inclined plate 28 to vibrate synchronously, thereby causing the seeds to slide down the slope of the imitation vibration inclined plate 28 and enter the feed hopper 15.

[0059] In this embodiment, a magnetic vibration block 32 is further installed at the bottom of the vibrating rod 31. When the hopper 15 is in the material picking state, the electromagnetic adsorption block 20 is in perfect cooperation with the magnetic vibration block 32. At this time, the electromagnetic adsorption block 20 can magnetically cooperate with the magnetic vibration block 32. At this time, the vibration motor 19 can work to make the imitation vibration inclined plate 28 vibrate, thereby better performing the material picking operation.

[0060] Example 6:

[0061] An angle adjustment groove 33 is also provided through one side of the sorting disc 10. A limiting screw 34 is movably inserted in the angle adjustment groove 33. The limiting screw 34 is fixedly installed on the side of the gravity sorting plate 13 away from the assembly hole 12. A stop limiting block 35 is also threaded on the limiting screw 34. By rotating the stop limiting block 35 to abut against the side of the sorting disc 10, the gravity sorting plate 13 is limited and fixed.

[0062] In this embodiment, the tilt angle of the gravity sorting plate 13 can be adjusted by tightening or loosening the stop block 35, and it can be fixed after adjustment. This setting can adapt to different types of seed sorting operations.

[0063] Example 7:

[0064] A feeding guide plate 37 is also fixedly and rotatably installed on the feeding hopper 15 at the bottom of the screening feeding hole 36. The feeding guide plate 37 is adjusted in orientation under the drive of a deflection motor, which is fixedly installed at the bottom of the feeding hopper 15.

[0065] In this embodiment, in order to better guide the seeds in the hopper 15 into the sorting disk 10, a feeding guide plate 37 is also rotatably mounted on the hopper 15 at the bottom of the screening feeding hole 36. The feeding guide plate 37 can better guide the seeds to fall into a specific position in the sorting disk 10, thereby smoothly carrying out the sorting operation. At the same time, the feeding guide plate 37 can change its orientation under the drive of the deflection motor, so that the feeding guide plate 37 does not affect the normal operation of the hopper 15 when it is in the material picking mode.

[0066] A fully automated method for selecting sugar beet seeds by specific gravity, using the aforementioned fully automated sugar beet seed specific gravity selection device, includes the following steps:

[0067] Step 1: Empty the sorting chamber 3, sorting plate 10 and feeding hopper 15, and put the seeds to be screened into the feeding hopper 15;

[0068] Step 2: Adjust the tilt angle of the gravity sorting plate 13 to meet the sorting requirements of the corresponding type of seed;

[0069] Step 3: The lifting mechanism drives the feeding hopper 15 to move to the screening and feeding position. At this time, the electromagnetic adsorption block 20 and the magnetic attraction block 14 are magnetically engaged to keep the feeding hopper 15 fixed. Then, the quantitative feeding mechanism feeds the seeds quantitatively and simultaneously starts the vibration motor 19. The vibration motor 19 drives the sorting plate 10 to vibrate, so that the seeds enter the corresponding sorting chamber 3 through the feeding channel 9 during the vibration process until all seeds are sorted once.

[0070] Step 4: After the first sorting is completed, the driving translation base 16 and the lifting mechanism move, so that the feeding hopper 15 reaches the material picking position. At this time, the pushing block 21 installed on the feeding hopper 15 and the pushing claw 7 cooperate to push the feeding baffle 6 to move downward so that the feeding hole 5 opens. At this time, the seeds stored in the corresponding sorting chamber 3 slide down the inclined groove slide 4 under the action of gravity and fall into the feeding hopper 15 again. After all the seeds in a single sorting chamber 3 have fallen, the feeding hopper 15 moves to the feeding position again and performs secondary screening in the manner of step 3.

[0071] Step 5: Repeat Step 4 to perform material feeding and secondary screening in each sorting chamber 3 in sequence until the secondary screening operation of all sorting chambers 3 is completed.

[0072] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fully automatic sugar beet seed specific gravity selection device, characterized in that, include: A base on which a selection box is fixedly mounted; The sorting box has several equally spaced sorting chambers inside. The bottom of each sorting chamber has a sloping groove slide. Several discharge holes are also opened through the plate on one side of the bottom of the sloping groove slide of the sorting box. Each discharge hole corresponds to a sorting chamber. Each discharge hole is equipped with a discharge baffle that is lifted and lowered. The discharge baffles are connected to the sorting box by a closing spring. The closing spring pushes the discharge baffle upward without external force to block the discharge hole. A pushing claw is also fixedly installed on the discharge baffle. A feeding ramp is fixedly installed above the sorting box. The feeding ramp has a number of feeding channels that are the same as the number of sorting chambers and correspond one-to-one with the feeding channels. The feeding channels are located on the side away from the feeding hole. The sorting disc is movably mounted above the feeding inclined plate. Multiple partition blocks are also fixedly installed on the side of the sorting disc near the feeding channel. The partition blocks are used to block and isolate several feeding channels. Assembly holes are also provided on the inner side of the sorting disc for installing gravity sorting plates. Magnetic attraction blocks are also fixedly installed on the outer plate of the sorting disc on the side away from the partition blocks. A gravity sorting plate, the angle of which is adjustable and installed inside the sorting disc; and... The feeding mechanism includes a feeding hopper, a lifting mechanism, and a translation drive base. The translation drive base is movably coupled with a track bar installed on the base via a track groove opened at the bottom. The feeding hopper has a screening feeding hole on the side near the sorting plate, and a quantitative feeding mechanism is installed in the screening feeding hole. A vibration motor is also fixedly installed at the bottom of the feeding hopper. An electromagnetic adsorption block is fixedly installed on the drive shaft of the vibration motor. The electromagnetic adsorption block and the magnetic adsorption block are magnetically coupled, thereby transmitting the vibration generated by the vibration motor to the sorting plate, which in turn drives the sorting plate to perform sorting vibration. A push block is also fixedly installed on the side of the feeding hopper near the selection box. The push block is movably coupled with a push claw. When the push block descends and drives the push claw downward, the feeding baffle overcomes the elastic force of the closing spring, causing the feeding hole to open. At this time, the seeds stored in the corresponding sorting chamber slide down the inclined groove slide under the action of gravity and fall back into the feeding hopper for multiple sorting operations.

2. The fully automatic sugar beet seed specific gravity selection device according to claim 1, characterized in that: Screening springs are fixedly installed on both sides of the sorting box, and L-shaped connecting plates are installed on both sides of the sorting disc. The end of the L-shaped connecting plate away from the sorting disc is fixedly connected to the screening spring.

3. The fully automatic sugar beet seed specific gravity selection device according to claim 1 or 2, characterized in that: The lifting mechanism that drives the hopper to rise and fall is a hydraulic telescopic cylinder or a screw lifting mechanism.

4. The fully automatic sugar beet seed specific gravity selection device according to claim 3, characterized in that: The quantitative feeding mechanism includes a screw sleeve, which is fixedly installed inside the screening feeding hole. A feeding screw is rotatably installed on a fixed axis inside the screw sleeve. The feeding screw is fixedly connected to the drive shaft of a stepper motor. The stepper motor is fixedly installed inside the feeding hopper. The rotation of the stepper motor drives the screw sleeve to rotate, thereby performing the feeding operation.

5. The fully automatic sugar beet seed specific gravity selection device according to claim 4, characterized in that: Each of the inclined grooves in the selection box is equipped with a corresponding imitation vibration plate. The upper and lower sides of the imitation vibration plate are connected to vibration springs. The vibration springs are movably installed in the spring holes in the selection box. The side of the vibration spring away from the imitation vibration plate abuts against a limiting block. The limiting block is engaged with the internal thread at the bottom of the spring hole through its external thread. A vibration rod is also inserted into the spring hole near the hopper. The upper end of the vibration rod is fixedly connected to the imitation vibration plate, and the lower end of the vibration rod extends to the outside of the selection box through the through hole in the limiting block.

6. The fully automatic sugar beet seed specific gravity selection device according to claim 5, characterized in that: A magnetic vibration block is fixedly installed at the end of the vibrating rod away from the imitation vibration inclined plate. The magnetic vibration block and the electromagnetic adsorption block are magnetically coordinated. The vibration generated by the electromagnetic adsorption block drives the imitation vibration inclined plate to vibrate synchronously, thereby causing the seeds to slide down the slope of the imitation vibration inclined plate and enter the feeding hopper.

7. The fully automatic sugar beet seed specific gravity selection device according to claim 6, characterized in that: An angle adjustment groove is also provided through one side of the sorting disc, and a limiting screw is movably inserted in the angle adjustment groove. The limiting screw is fixedly installed on the side of the gravity sorting plate away from the assembly hole. A stop limiting block is also threaded on the limiting screw. By rotating the stop limiting block to abut against the side of the sorting disc, the gravity sorting plate is limited and fixed.

8. The fully automatic sugar beet seed specific gravity selection device according to claim 7, characterized in that: A feeding guide plate is also fixedly and rotatably installed on the feeding hopper at the bottom of the screening feeding hole. The feeding guide plate is adjusted in orientation under the drive of a deflection motor, which is fixedly installed at the bottom of the feeding hopper.

9. A fully automatic method for selecting sugar beet seeds by specific gravity, using the fully automatic sugar beet seed specific gravity selection device according to any one of claims 1-8, characterized in that, Includes the following steps: Step 1: Empty the sorting chamber, sorting plate and feeding hopper, and put the seeds to be screened into the feeding hopper; Step 2: Adjust the tilt angle of the gravity sorting plate to meet the sorting requirements of the corresponding type of seed; Step 3: The lifting mechanism drives the hopper to move to the screening and feeding position. At this time, the electromagnetic adsorption block and the magnetic attraction block are magnetically engaged to keep the hopper fixed. Then, the quantitative feeding mechanism feeds the hopper quantitatively and the vibration motor is turned on at the same time. The vibration motor drives the sorting disc to vibrate, so that the seeds enter the corresponding sorting chamber through the feeding channel during the vibration process until all seeds are sorted once. Step 4: After the first sorting is completed, the driving translation base and lifting mechanism move, so that the feeding hopper reaches the material picking position. At this time, the pushing block and pushing claw installed on the feeding hopper cooperate and push the feeding baffle to move downward so that the feeding hole opens. At this time, the seeds stored in the corresponding sorting chamber slide down the inclined groove slide under the action of gravity and fall into the feeding hopper again. After all the seeds in a single sorting chamber have fallen, the feeding hopper moves to the feeding position again and performs secondary screening in the manner of step 3. Step 5: Repeat Step 4 to perform material feeding and secondary screening in each sorting chamber in sequence until the secondary screening operation of all sorting chambers is completed.

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