Tartary buckwheat seed screening device

By combining a blower adsorption and a vibration screening device, the problem of existing devices being unable to remove seed coats is solved, achieving effective screening of the seed coat inside buckwheat seeds and preventing blockage of the feed pipe, thus improving the screening effect and the practicality of the device.

CN223960055UActive Publication Date: 2026-03-03TONGWEI COUNTY TONGLIANG AGRI CO LTD
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Patent Information

Application Number
CN202520522990.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-24
Publication Date
2026-03-03
Estimated Expiration
2035-03-24

AI Technical Summary

Technical Problem

Existing screening devices can only screen buckwheat seeds by size, but cannot remove the seed coat inside the seed, causing the seed coat to enter subsequent steps and reducing the practicality of the device.

Method used

The system employs a combination of a fan, connecting pipe, collection frame, filter screen, placement base, and fixing unit. The fan generates suction to adsorb the seed coats into the connecting pipe and collect them into the collection frame. At the same time, a motor-driven moving device prevents the feed pipe from clogging, and a vibrating device drives the screen to vibrate for screening.

Benefits of technology

This method effectively removes the seed coat from the inside of buckwheat seeds, preventing the seed coat from entering subsequent steps, improving the screening effect, preventing clogging of the feed pipe, and enhancing the practicality of the device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a tartary buckwheat seed screening device which comprises a screening box, the top of the screening box is communicated with a feeding pipe, a screen is arranged in the screening box, the tartary buckwheat seed screening device further comprises two sets of adsorption devices, and the two sets of adsorption devices are arranged on the two sides of the screening box respectively. And the moving device is arranged above the screening box. The tartary buckwheat seed screening device relates to the technical field of tartary buckwheat processing, through cooperation of the draught fan, the connecting pipe, the collecting frame, the filter screen, the containing base and the fixing part, seeds in tartary buckwheat seeds are adsorbed, the screening effect is improved, and the problem that when an existing screening device screens the tartary buckwheat seeds, the screening efficiency is high is solved. The problem that the practicability of an existing screening device is reduced due to the fact that only size screening can be carried out on the tartary buckwheat seeds, and seed coats in the tartary buckwheat seeds cannot be screened, the seed coats can enter subsequent steps along with the qualified tartary buckwheat seeds is solved.
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Description

Technical Field

[0001] This utility model relates to the field of buckwheat processing technology, specifically a buckwheat seed screening device. Background Technology

[0002] Tartary buckwheat is an annual herbaceous plant with an erect stem, broad triangular leaves, racemose inflorescences, and dark brown fruits. Tartary buckwheat has important medicinal and nutritional value. During the processing of tartary buckwheat, the seeds need to be screened using a screening device.

[0003] When using the existing screening device, the staff put the buckwheat seeds onto the vibrating screen, and the buckwheat seeds smaller than the screen mesh size are screened out, while the buckwheat seeds larger than the screen mesh size are left.

[0004] However, existing screening devices can only screen buckwheat seeds by size, and cannot screen the seed coat inside the buckwheat seeds. Some buckwheat seeds contain seed coats, which will be carried into subsequent steps along with the qualified buckwheat seeds, thus reducing the practicality of the existing screening devices. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a buckwheat seed screening device, which solves the problem that existing screening devices can only screen buckwheat seeds by size and cannot screen the seed coat inside the buckwheat seed. As a result, these seed coats will enter subsequent steps along with the qualified buckwheat seeds, thereby reducing the practicality of existing screening devices.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a buckwheat seed screening device, comprising a screening box, a feed pipe connected to the top of the screening box, a screen inside the screening box, and an adsorption device, wherein two sets of adsorption devices are respectively arranged on both sides of the screening box; a moving device is arranged above the screening box; and a vibration device is arranged at the bottom of the screen. The adsorption device adsorbs the seed coat inside the buckwheat seeds, the moving device stirs the buckwheat seeds inside the feed pipe to prevent blockage, and the vibration device drives the screen to vibrate, thus screening the buckwheat seeds.

[0007] Preferably, the adsorption device includes a blower, which is fixedly connected to the bottom of the inner wall of the screening box by bolts; a connecting pipe is connected to the output end of the blower, and one end extends to the outside of the screening box; a collection frame is inserted into the surface of the screening box and connected to the connecting pipe; a placement seat is fixedly connected to the side wall of the screening box, and its inner wall is attached to the outer wall of the collection frame; a filter screen is embedded in the top of the collection frame; two sets of fixing parts are provided, both of which are located at the bottom of the placement seat; wherein, the blower generates suction, which draws the seed coats through the blower into the connecting pipe, and finally into the collection frame for collection.

[0008] Preferably, the fixing part includes a box body, which is fixedly connected to the side wall of the screening box and located below the placement seat; a pawl is disposed inside the box body, and its bottom extends to the outer wall of the box body and is movably connected to the box body; the two ends of a first spring are respectively fixedly connected to the upper side of one side of the pawl and the inner wall of the box body near the screening box; a ratchet is engaged with the top of the pawl on the side away from the first spring and is rotatably connected to the box body via a pin; a column is fixedly connected to the outer wall of the ratchet and extends to the top of the box body, and its side is attached to the outer wall of the collection frame; a locking block is fixedly connected to the side of the column and inserted into the inner wall of the collection frame; the end of a sliding rod is fixedly connected to the inner wall of the box body near the screening box and is slidably engaged with the inner wall of the pawl. Through the cooperation of the ratchet and the column, the locking block seals the opening of the collection frame, and the first spring provides elastic force to the pawl and ratchet, thereby fixing the column.

[0009] Preferably, the moving device includes a housing, which is fixedly connected to the top of the screening box near the feed pipe; a motor is fixedly connected to the inner wall of the housing via a motor sleeve; a connecting column is fixedly connected to the output shaft of the motor; a round rod is fixedly connected to the front of the connecting column; a vertical column is slidably connected to the outer wall of the round rod and extends to the outside of the housing, and is movably connected to the housing; a curved rod is fixedly connected to the upper part of the outer wall of the vertical column, and its end extends into the inside of the feed pipe; wherein, driven by the motor, the connecting column causes the round rod to move the vertical column, thereby causing the curved rod to move in the feed pipe.

[0010] Preferably, the vibration device includes a vibration motor fixedly connected to the bottom of the screen; a slider fixedly connected to the side wall of the screen and slidably engaged with the inner wall of the screening box; a second spring fixedly connected to both sides of the bottom of the screen; a horizontal column fixedly connected to the bottom of the second spring and its side wall fixedly connected to the inner wall of the screening box; and an inclined plate fixedly connected to the bottom of the inner wall of the screening box, with one side extending to the outside of the screening box through an opening; wherein, driven by the vibration motor, the screen causes the slider to move, thereby deforming the second spring.

[0011] Beneficial effects

[0012] This utility model provides a buckwheat seed screening device. It has the following beneficial effects: This buckwheat seed screening device, through the cooperation of a fan, connecting pipe, collection frame, filter screen, placement seat, and fixing part, achieves adsorption of seeds inside the buckwheat seeds, improving the screening effect. It solves the problem that existing screening devices can only screen buckwheat seeds by size, and cannot screen the seed coat inside the buckwheat seeds. This causes the seed coat to enter subsequent steps along with the qualified buckwheat seeds, thus reducing the practicality of existing screening devices.

[0013] By combining the motor, connecting column, round rod, vertical column, curved rod, housing and sliding rod, the system prevents seeds from accumulating and causing blockage in the feed pipe. This solves the problem that when feeding buckwheat seeds, the irregular shape of the seeds can cause them to intertwine and pile up during the falling process, resulting in smaller local pores and potentially blocking the inside of the feed pipe. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the appearance of the present utility model;

[0016] Figure 3 for Figure 1 A structural diagram of the screening box, connecting pipe, and collection frame;

[0017] Figure 4 for Figure 1 Schematic diagram of the structure of the central round rod, vertical column and curved rod.

[0018] In the diagram: 1. Screening box; 2. Feed pipe; 3. Screen; 4. Adsorption device; 41. Fan; 42. Connecting pipe; 43. Collection frame; 44. Filter screen; 45. Placement seat; 46. Fixing part; 461. Box body; 462. Pawl; 463. First spring; 464. Ratchet; 465. Column; 466. Locking block; 467. Slide bar; 5. Moving device; 51. Motor; 52. Connecting column; 53. Round rod; 54. Vertical column; 55. Curved rod; 56. Housing; 6. Vibration device; 61. Vibration motor; 62. Slider; 63. Second spring; 64. Horizontal column; 65. Inclined plate. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Existing screening devices can only screen buckwheat seeds by size, but cannot screen the seed coat inside the seeds. As a result, the seed coat will be carried into subsequent steps along with the qualified buckwheat seeds, thus reducing the practicality of the existing screening devices.

[0021] In view of this, the present invention provides a buckwheat seed screening device, which solves the problem of adsorbing seeds inside buckwheat seeds through the cooperation of a fan, connecting pipe, collection frame, filter screen, placement seat and fixing part, thereby improving the screening effect. It also solves the problem that the existing screening devices can only screen buckwheat seeds by size and cannot screen the seed coat inside the buckwheat seeds. As a result, these seed coats will enter the subsequent steps along with the qualified buckwheat seeds, thereby reducing the practicality of the existing screening devices.

[0022] Those skilled in the art can connect the components in this case sequentially. The specific connection and operation sequence should refer to the working principle described below. The detailed connection methods are well-known technologies in the field. The working principle and process are mainly described below.

[0023] Example 1: By Figure 1-4 It is known that a buckwheat seed screening device includes a screening box 1, with a feed pipe 2 connected to the top of the screening box 1. First, the moving device 5 is activated, and then the worker puts the buckwheat seeds into the feed pipe 2. The moving device 5 stirs the buckwheat seeds inside the feed pipe 2. The screening box 1 is equipped with a screen 3. The buckwheat seed screening device also includes an adsorption device 4, a moving device 5, and a vibration device 6. Two sets of adsorption devices 4 are set and are respectively set on both sides of the screening box 1. At this time, the adsorption devices 4 on both sides are activated to adsorb the seed coat inside the seeds. The moving device 5 is set above the screening box 1. The vibration device 6 is set at the bottom of the screen 3. The vibration device 6 is activated to make the screen 3 vibrate and screen the buckwheat seeds by size. In this process, the adsorption device 4 adsorbs the seed coat inside the buckwheat seeds, the moving device 5 stirs the buckwheat seeds inside the feed pipe 2 to prevent blockage inside the feed pipe 2, and the vibration device 6 drives the screen 3 to vibrate and screen the buckwheat seeds.

[0024] In the specific implementation process, it is worth noting that the mobile device 5 is started first, and then the staff put the buckwheat seeds into the feed pipe 2. The mobile device 5 stirs the buckwheat seeds inside the feed pipe 2. The buckwheat seeds fall into the screen 3 through the feed pipe 2. At this time, the adsorption devices 4 on both sides are started to adsorb the seed coat inside the seeds. The vibration device 6 is started to make the screen 3 vibrate and screen the buckwheat seeds by size.

[0025] Specifically, firstly, the moving device 5 is activated, and then the staff puts the buckwheat seeds into the feed pipe 2. The moving device 5 stirs the buckwheat seeds inside the feed pipe 2, and the buckwheat seeds fall into the screen 3 through the feed pipe 2. At this time, the adsorption devices 4 on both sides are activated to adsorb the seed coat inside the seeds. The vibration device 6 is activated to make the screen 3 vibrate and screen the buckwheat seeds by size.

[0026] Example 2: From Figure 1-4 It is known that the adsorption device 4 includes a blower 41, a connecting pipe 42, a collection frame 43, a filter screen 44, a placement seat 45, and a fixing part 46. A synchronizer is installed between the two blowers 41 to allow both blowers 41 to work simultaneously. The blower 41 is a Turbofan-630 model, which prevents seed coats from entering the blower 41 and causing damage. The blower 41 is fixedly connected to the bottom of the inner wall of the screening box 1 by bolts. The connecting pipe 42 is connected to the output end of the blower 41, and one end extends to the outside of the screening box 1. Then, the operator starts the blowers 41 on both sides, and the blowers 41 generate suction to suck the seed coats into the connecting pipe 42. The collection frame 43 is inserted into the surface of the screening box 1 and connected to the connecting pipe 42. The system is connected; the operator moves the collection frame 43 so that it contacts the placement seat 45, and then inserts the collection frame 43 into the screening box 1. The placement seat 45 is fixedly connected to the side wall of the screening box 1, and its inner wall is attached to the outer wall of the collection frame 43. Finally, the collection frame 43 is entered to collect the seed coats. When it is necessary to clean the collection frame 43, the operator pushes the collection frame 43 to remove it and pour out the seed coats inside. The filter screen 44 is embedded in the top of the collection frame 43. Two sets of fixing parts 46 are provided, both of which are located at the bottom of the placement seat 45. The fan 41 generates suction to draw the seed coats through the fan 41 into the connecting pipe 42, and finally into the collection frame 43 for collection.

[0027] In the specific implementation process, it is worth noting that a synchronizer is installed between the two blowers 41, so that the two blowers 41 can work simultaneously. The blower 41 is model Turbofan-630. This can prevent the seed coat from entering the inside of the blower 41 and causing damage to the inside of the blower 41. The staff moves the collection frame 43 so that the collection frame 43 contacts the placement seat 45. Finally, the collection frame 43 is inserted into the screening box 1. Then the staff starts the blowers 41 on both sides. The blowers 41 generate suction to suck the seed coat into the connecting pipe 42 and finally into the collection frame 43 for collection. When it is necessary to clean the collection frame 43, the staff pushes the collection frame 43 to remove it and pour out the seed coat inside. This achieves adsorption of the seeds inside the buckwheat seeds and improves the screening effect.

[0028] Furthermore, the fixing part 46 includes a housing 461, a pawl 462, a first spring 463, a ratchet 464, a column 465, a locking block 466, and a sliding rod 467. The housing 461 is fixedly connected to the side wall of the screening box 1 and is located below the placement seat 45. The pawl 462 is disposed inside the housing 461, and its bottom extends to the outer wall of the housing 461 and is movably connected to the housing 461. When the operator inserts the collection frame 43 into the screening box 1, the operator moves the bottom of the pawl 462. The pawl 462 moves within the housing 461 and is also moved on the slide bar 467, which limits the movement of the pawl 462. The two ends of the first spring 463 are fixedly connected to the upper side of one side of the pawl 462 and the inner wall of the housing 461 near the screening box 1, respectively. At this time, the first spring 463 is compressed, and the ratchet 464 engages with the top of the pawl 462 on the side away from the first spring 463, and is rotatably connected to the housing 461 via a pin. The pawl 462 then disengages from the ratchet 464, releasing the ratchet 464 from its fixed position. The upright column 465 is fixedly connected to the outer wall of the ratchet 464 and extends to the top of the box 461, with its side attached to the outer wall of the collection frame 43; the locking block 466 is fixedly connected to one side of the upright column 465 and inserted into the inner wall of the collection frame 43; the end of the sliding rod 467 is fixedly connected to the inner wall of the box 461 near the screening box 1 and slides into the inner wall of the pawl 462; at this time, the operator rotates the upright column 465, which drives the locking block 466 to rotate, inserting the locking block 466 into the collection frame 43. After the collection frame 43 is placed in the groove on its surface, the operator releases the pawl 462. At this time, the first spring 463 rebounds, causing the pawl 462 to re-engage with the ratchet 464, fixing the position of the column 465 and securing the collection frame 43 to the screening box 1. The ratchet 464 and the column 465 work together to seal the opening of the collection frame 43 with the locking block 466. The first spring 463 provides elastic force to the pawl 462 and the ratchet 464, thereby fixing the column 465.

[0029] In the specific implementation process, it is worth noting that after the worker inserts the collection frame 43 into the screening box 1, the worker moves the bottom of the pawl 462, the pawl 462 moves in the box 461, and the pawl 462 moves on the slide bar 467 to limit the pawl 462. At this time, the first spring 463 is compressed, the pawl 462 leaves the ratchet 464, and the ratchet 464 is released from its fixation. At this time, the worker rotates the column 465, which drives the locking block 466 to rotate, inserting the locking block 466 into the groove on the surface of the collection frame 43. After that, the worker releases the pawl 462, and the first spring 463 rebounds, causing the pawl 462 to re-contact the ratchet 464, fixing the position of the column 465 and fixing the collection frame 43 to the screening box 1. When the collection frame 43 is released from its fixation, the worker can repeat the above steps to fix the collection frame 43.

[0030] Furthermore, the moving device 5 includes a motor 51, a connecting column 52, a round rod 53, a vertical column 54, a curved rod 55, and a housing 56. The motor 51 is model MXL-42BLDC-01. The housing 56 is fixedly connected to the top of the screening box 1 near the feed pipe 2. The motor 51 is fixedly connected to the inner wall of the housing 56 through a motor sleeve. The connecting column 52 is fixedly connected to the output shaft of the motor 51. When the operator connects the motor 51 to an external power source, the motor 51 drives the connecting column 52 to rotate, and the round rod 53 is fixedly connected to the front of the connecting column 52. The connecting column 52 drives the round rod 53 to rotate, and the vertical column 54 is slidably connected to the round rod 55. The outer wall of the 3, the round rod 53 slides in the limiting groove of the inner wall of the vertical column 54, thereby driving the vertical column 54 to move, and extends to the outside of the housing 56 and is movably connected to the housing 56; the vertical column 54 moves in the housing 56, limiting the vertical column 54, the curved rod 55 is fixedly connected to the upper part of the outer wall of the vertical column 54, and the end extends into the inside of the feed pipe 2; the vertical column 54 drives the curved rod 55 to move, the curved rod 55 moves back and forth in the feed pipe 2 to stir the buckwheat seeds, wherein, under the drive of the motor 51, the connecting column 52 causes the round rod 53 to drive the vertical column 54 to move, thereby causing the curved rod 55 to move in the feed pipe 2;

[0031] In the specific implementation process, it is worth noting that the model of motor 51 is MXL-42BLDC-01. When the staff connects motor 51 to an external power supply, motor 51 drives connecting column 52 to rotate, connecting column 52 drives round rod 53 to rotate, and round rod 53 slides in the limiting groove on the inner wall of vertical column 54, thereby driving vertical column 54 to move. Vertical column 54 moves in housing 56, limiting vertical column 54. Vertical column 54 drives curved rod 55 to move, and curved rod 55 moves back and forth in feed pipe 2 to stir buckwheat seeds, thereby preventing seeds from accumulating and causing blockage of feed pipe 2.

[0032] Furthermore, the vibration device 6 includes a vibration motor 61, a slider 62, a second spring 63, and an inclined plate 65. A cover plate is installed on the front of the screening box 1, and the cover plate can be fixed to the screening box 1 with bolts. The vibration motor 61 is a YZS-5-6 model and is fixed to the bottom of the screen 3. When the operator connects the vibration motor 61 to an external power source, the vibration motor 61 drives the screen 3 to vibrate. The slider 62 is fixedly connected to the side wall of the screen 3 and slidably engaged with the inner wall of the screening box 1. The screen 3 drives the sliders 62 on both sides to slide in the limiting grooves on the side wall of the screening box 1. The second springs 63 are fixedly connected to the bottom sides of the screen 3. The screen 3 drives the second springs 63 on both sides to move, causing the second springs 63 to rotate. The sieve 3 is deformed to screen the buckwheat seeds. The horizontal column 64 is fixedly connected to the bottom of the second spring 63 and its side wall is fixedly connected to the inner wall of the screening box 1. The inclined plate 65 is fixedly connected to the bottom of the inner wall of the screening box 1 and one side extends to the outside of the screening box 1 through an opening. Buckwheat seeds smaller than the aperture of the sieve 3 fall onto the inclined plate 65 and are discharged into the screening box 1 along the inclined plate 65. Qualified buckwheat seeds remain on the sieve 3. The staff cleans the qualified buckwheat seeds on the sieve 3 regularly. The staff opens the cover plate, takes out the qualified buckwheat seeds, and then fixes the cover plate back to the initial position. The sieve 3 is driven by the vibration motor 61 to move the slider 62, thereby deforming the second spring 63.

[0033] In the specific implementation process, it is worth noting that the front of the screening box 1 is equipped with a cover plate, which can be fixed to the screening box 1 with bolts. The vibration motor 61 is model YZS-5-6. The staff connects the vibration motor 61 to an external power supply. The vibration motor 61 drives the screen 3 to vibrate. The screen 3 drives the sliders 62 on both sides to slide in the limiting grooves on the side wall of the screening box 1. The screen 3 drives the second springs 63 on both sides to move, causing the second springs 63 to deform. The screen 3 screens the buckwheat seeds. The buckwheat seeds smaller than the aperture of the screen 3 fall onto the inclined plate 65 and are discharged into the screening box 1 along the inclined plate 65. The qualified buckwheat seeds remain on the screen 3. The staff cleans the qualified buckwheat seeds on the screen 3 at regular intervals. The staff opens the cover plate, takes out the qualified buckwheat seeds, and then fixes the cover plate back to the initial position. This completes the screening of buckwheat seeds.

[0034] Specifically, firstly, the operator moves the collection frame 43 until it contacts the placement seat 45, and then inserts the collection frame 43 into the screening box 1. Next, the operator moves the bottom of the pawl 462, causing it to move within the box 461. Limiting the pawl 462, the first spring 463 is compressed, and the pawl 462 disengages from the ratchet 464, releasing the ratchet 464's fixation. Then, the operator rotates the column 465, causing the locking block 466 to rotate and insert into the groove on the surface of the collection frame 43. After this, the operator releases the pawl 462, causing the first spring 463 to rebound, bringing the pawl 462 back into contact with the ratchet 464, fixing the position of the column 465 and securing the collection frame 43 to the screening box 1. Finally, the operator connects the motor 51 to an external power source, causing the motor 51 to rotate, which in turn rotates the connecting column 52, which in turn rotates the round rod 53. The circular rod 53 slides in the limiting groove on the inner wall of the vertical column 54, thereby driving the vertical column 54 to move. The vertical column 54 moves in the housing 56, limiting the vertical column 54. The vertical column 54 drives the curved rod 55 to move. The curved rod 55 moves back and forth in the feed pipe 2 to stir the buckwheat seeds. At the same time, the staff starts the fans 41 on both sides. The fans 41 generate suction to suck the seed husks into the connecting pipe 42 and finally into the collection frame 43 to collect the seed husks. After that, the staff connects the vibration motor 61 to the external power supply. The vibration motor 61 drives the screen 3 to vibrate. The screen 3 drives the sliders 62 on both sides to slide in the limiting groove on the side wall of the screening box 1. The screen 3 drives the second springs 63 on both sides to move, causing the second springs 63 to deform. The screen 3 screens the buckwheat seeds. Buckwheat seeds smaller than the aperture of the screen 3 fall onto the inclined plate 65 and are discharged into the screening box 1 along the inclined plate 65.

[0035] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A buckwheat seed screening device, comprising a screening box (1), characterized in that: The top of the screening box (1) is connected to a feed pipe (2), and a screen (3) is installed inside the screening box (1). The buckwheat seed screening device also includes: The adsorption device (4) is provided in two sets, and is respectively located on both sides of the screening box (1); A mobile device (5) is positioned above the screening box (1); A vibration device (6) is provided at the bottom of the screen (3); The adsorption device (4) adsorbs the seed coat inside the buckwheat seeds, the moving device (5) stirs the buckwheat seeds inside the feed pipe (2) to prevent blockage inside the feed pipe (2), and the vibrating device (6) drives the screen (3) to vibrate to screen the buckwheat seeds.

2. The buckwheat seed screening device according to claim 1, characterized in that: The adsorption device (4) includes: The fan (41) is fixedly connected to the bottom of the inner wall of the screening box (1) by bolts; A connecting pipe (42) is connected to the output end of the fan (41), and one end extends to the outside of the screening box (1); The collection frame (43) is inserted into the surface of the screening box (1) and connected to the connecting pipe (42); The placement seat (45) is fixedly connected to the side wall of the screening box (1), and its inner wall is attached to the outer wall of the collection frame (43); A filter (44) is embedded in the top of the collection frame (43); The fixing part (46) is provided in two sets, and both are provided at the bottom of the placement seat (45); The fan (41) generates suction to draw the seed coats through the fan (41) into the connecting pipe (42), and finally into the collection box (43) to collect the seed coats.

3. The buckwheat seed screening device according to claim 2, characterized in that: The fixing part (46) includes: The box body (461) is fixedly connected to the side wall of the screening box (1) and is located below the placement seat (45); A pawl (462) is disposed inside the housing (461), and its bottom extends to the outer wall of the housing (461) and is movably connected to the housing (461); The first spring (463) is fixedly connected at both ends to the upper side of the pawl (462) and the inner wall of the box (461) near the screening box (1); A ratchet (464) is engaged with the top of the pawl (462) on the side away from the first spring (463) and is rotatably connected to the housing (461) via a pin. The column (465) is fixedly connected to the outer wall of the ratchet (464) and extends to the top of the box (461), and its side is attached to the outer wall of the collection frame (43); The card block (466) is fixedly connected to the side of the column (465) and inserted into the inner wall of the collection frame (43); The slide bar (467) is fixedly connected at its end to the inner wall of the box body (461) near the side of the screening box (1), and is slidably engaged with the inner wall of the pawl (462); The ratchet (464) and the column (465) work together to block the opening of the collection frame (43) with the locking block (466). The first spring (463) provides elastic force to the pawl (462) and the ratchet (464) to engage, thereby fixing the column (465).

4. The buckwheat seed screening device according to claim 1, characterized in that: The mobile device (5) includes: The housing (56) is fixedly connected to the top of the screening box (1) on the side near the feed pipe (2); The motor (51) is fixedly connected to the inner wall of the housing (56) via a motor sleeve; The connecting column (52) is fixed to the output shaft of the motor (51); A round rod (53) is fixed to the front side of the connecting post (52); The vertical column (54) is slidably connected to the outer wall of the round rod (53) and extends to the outside of the housing (56), and is movably connected to the housing (56); A curved rod (55) is fixedly connected to the upper part of the outer wall of the vertical column (54), and its end extends into the interior of the feed pipe (2); The connecting column (52) is driven by the motor (51) to make the round rod (53) move the vertical column (54), thereby making the curved rod (55) move in the feed pipe (2).

5. The buckwheat seed screening device according to claim 1, characterized in that: The vibration device (6) includes: A vibration motor (61) is fixed to the bottom of the screen (3); The slider (62) is fixedly connected to the side wall of the screen (3) and slidably engaged with the inner wall of the screening box (1); The second spring (63) is fixedly connected to the bottom of the screen (3); A horizontal column (64) is fixedly connected to the bottom of the second spring (63), and its sidewall is fixedly connected to the inner wall of the screening box (1); Inclined plate (651) is fixedly connected to the bottom of the inner wall of the screening box (1), and one side extends to the outside of the screening box (1) through an opening; The screen (3) is driven by the vibration motor (61) to move the slider (62), thereby deforming the second spring (63).