Contact seed treatment device and treatment method based on ultrasonic screening of high-quality crop seeds

Abstract

The present invention discloses a contact seed treatment device and method for screening high-quality crop seeds based on ultrasound, belonging to the field of seed pre-treatment technology. The device comprises: a frame, an ultrasonic treatment device, and a controller; a support plate mounted inside the frame, the support plate being tilted; a first vertical plate and a second vertical plate mounted on the support plate, a treatment drum being rotatably connected to the side walls of the first and second vertical plates; notched circular baffles being spaced apart and mounted on a first rotating shaft, the notched circular baffles being mounted on the inner wall of the treatment drum; an ultrasonic source being mounted on the first rotating shaft and abutting against one side of the notched circular baffle; a motor being mounted on the outer wall of the second vertical plate, the motor being connected to the first rotating shaft, an inlet being provided on the first vertical plate, and an outlet being provided on the second vertical plate; and a controller being mounted on the inner top wall of the frame, the motor and the ultrasonic source being electrically connected to the controller. The present invention can damage low-quality seeds, preventing them from germinating, and enhance the growth potential of high-quality seeds, thereby achieving the purpose of screening high-quality crop seeds.

Description

Technical Field

[0001] The present invention belongs to the technical field of seed pretreatment, and in particular relates to a contact seed treatment device and a treatment method based on ultrasonic screening of high-quality crop seeds. Background Art

[0002] Ultrasound is a type of sound wave with a frequency higher than the audible range of human hearing. Specifically, the frequency of ultrasound typically ranges from 20 kilohertz (Khz) to several gigahertz (GHz). These high-frequency sound waves, when propagated through a medium, can produce a series of unique physical and chemical reactions, leading to their widespread application in a variety of fields, such as medical diagnosis, industrial testing, cleaning, welding, and agricultural seed treatment. Ultrasound has a certain yield-increasing effect on seed treatment, with yields increasing under certain ultrasonic treatment conditions while decreasing under others. This is closely related to the ultrasonic design parameters. Based on this principle, those skilled in the art are urgently seeking to develop a contact seed treatment device based on ultrasound for screening high-quality crop seeds. This device can damage low-quality seeds, preventing them from germinating, while enhancing the growth potential of high-quality seeds, thereby achieving the goal of screening high-quality crop seeds. Summary of the Invention

[0003] In view of this, the present invention provides a contact seed treatment device and a treatment method based on ultrasonic screening of high-quality crop seeds, which are used to solve the above problems.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] The contact seed processing device for screening high-quality crop seeds based on ultrasound includes: a frame, an ultrasonic processing device and a controller. The ultrasonic processing device includes a funnel, a support plate, a first vertical plate, a second vertical plate, a processing cylinder, a notched circular baffle, a first rotating shaft, an ultrasonic source and a motor. The funnel is installed on the inner side wall of the frame; the support plate is installed between the opposite side walls inside the frame, and the support plate is tilted; the first vertical plate and the second vertical plate are installed at both ends of the support plate, and the two ends of the processing cylinder are rotatably connected to the side walls of the first vertical plate and the second vertical plate respectively; a plurality of notched circular baffles are fixedly installed on the first rotating shaft at intervals, and a plurality of notched circular baffles are fixedly installed on the inner side wall of the processing cylinder The notch of the notched circular baffle forms a passage with the inner wall of the treatment cylinder; the first rotating shaft and the treatment cylinder are coaxial; multiple ultrasonic sources are installed on the first rotating shaft, and the output ends of multiple ultrasonic sources are respectively abutted against one side of multiple notched circular baffles; one end of the first rotating shaft passes through the second vertical plate and is rotatably connected to the second vertical plate, the motor is installed on the outer wall of the second vertical plate, the output end of the motor is fixedly connected to the protruding end of the first rotating shaft, a material inlet is provided on the first vertical plate, and the funnel is connected to the material inlet; a material outlet is provided on the second vertical plate; the controller is installed on the inner top wall of the frame, and the motor and the ultrasonic source are electrically connected to the controller.

[0006] Furthermore, the notches of two adjacent notched circular baffles face opposite directions, and the passages face opposite directions.

[0007] Furthermore, each of the ultrasonic sources is mounted on the first rotating shaft, on a side opposite to the passage.

[0008] Furthermore, the ultrasonic processing device also includes a bellows, a second rotating shaft and an electric telescopic rod, the two ends of the bellows are respectively connected to the funnel and the feed port; a rotating tube is provided at one end of the support plate, the second rotating shaft passes through the rotating tube and is rotatably connected to the second rotating shaft, and the two ends of the second rotating shaft are respectively fixedly connected to the side walls of the frame; a first bracket is provided inside the frame, the bottom end of the electric telescopic rod is hinged to the first bracket, and the top end is hinged to the bottom end of the support plate; the electric telescopic rod is electrically connected to the controller.

[0009] Furthermore, the ultrasonic processing device further comprises an external ultrasonic source, which is mounted on the support plate and rotatably connected to the outer wall of the processing cylinder.

[0010] Furthermore, it also includes a hopper, which is installed at the inner top of the frame, the bottom wall of the hopper is inclined to one side, and a drop outlet is provided at the bottom end of the hopper. The funnel is located below the drop outlet, and the inclination direction of the support plate is opposite to the inclination direction of the bottom wall of the hopper.

[0011] Furthermore, a vibrator is provided on the bottom wall of the hopper, and the vibrator is electrically connected to the controller.

[0012] Furthermore, it also includes a blanking port adjusting device, which includes a crank, a threaded rod, a nut and an adjusting plate. A second bracket is provided inside the frame, and the threaded rod extends into the frame and is rotatably connected to the top of the frame and the second bracket respectively; the nut is sleeved on the threaded rod and threadedly connected to the threaded rod; a flange on one side of the adjusting plate is fixedly connected to the nut, and the adjusting plate is slidably connected to the vertical side wall of the hopper, and the bottom end of the adjusting plate is located outside the blanking port.

[0013] Furthermore, a discharge funnel is provided on the frame, and the discharge funnel is located below the discharge port; the other end of the discharge funnel extends out of the frame.

[0014] The contact seed treatment method based on ultrasonic screening of high-quality crop seeds includes the following steps:

[0015] S1. Screening the seeds to be processed and removing impurities;

[0016] S2. According to the type of seeds to be treated and the expected treatment effect, adjust the operating parameters of the ultrasonic source and the external ultrasonic source so that the ultrasonic source and the external ultrasonic source generate corresponding ultrasonic waves;

[0017] S3. The seeds to be processed are dropped into the processing drum through the drop opening of the hopper. The motor drives the processing drum to rotate, and the seeds to be processed continuously pass through the opening. During the process, the seeds contact the notched circular baffle and the inner wall of the processing drum, and are simultaneously processed by the ultrasonic wave source and the external ultrasonic wave source. The selected ultrasonic wave parameters can damage the inferior seeds and prevent them from germinating, while enhancing the activity of the high-quality seeds.

[0018] The beneficial effects of the present invention are:

[0019] The present invention can drive the processing cylinder to rotate by a motor. After the seeds to be processed enter the processing cylinder, they fall onto the processing cylinder and the notched circular baffle, and as the processing cylinder rotates, they pass through the openings formed by the multiple notched circular baffles and the inner wall of the processing cylinder in sequence. During the process, the seeds to be screened pass through and contact the multiple notched circular baffles in the processing cylinder in sequence, and the ultrasonic source on the side of each notched circular baffle performs ultrasonic treatment on the passing seeds. At the same time, since the processing cylinder is cylindrical and due to gravity, the seeds to be processed always pass through the multiple openings on the bottom wall of the processing cylinder. The external ultrasonic source arranged at the bottom end of the processing cylinder can further increase the ultrasonic treatment effect on the seeds. The selected ultrasonic parameters can cause damage to inferior seeds and prevent them from germinating, while enhancing the activity of high-quality seeds. The electric telescopic rod is controlled to extend and shorten by a controller. Since the top and bottom ends of the electric telescopic rod are respectively hinged to the support plate and the first bracket, the support plate can be driven to rotate around the second rotating shaft, thereby adjusting the inclination angle of the processing cylinder, and then realizing the adjustment of the processing time of the seeds to be processed in the processing cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0021] Figure 1 It is a front cross-sectional view of a contact seed treatment device for screening high-quality crop seeds based on ultrasound.

[0022] Figure 2 for Figure 1 A partial enlarged view of middle A.

[0023] Figure 3 This is a top view of a contact seed treatment device for screening high-quality crop seeds based on ultrasound.

[0024] Figure 4 for Figure 2 BB cross-section view in.

[0025] Figure 5 for Figure 2 CC section view in.

[0026] Figure 6 Schematic diagram of the structure of the ultrasonic treatment device Figure 1 .

[0027] Figure 7 Schematic diagram of the structure of the ultrasonic treatment device Figure 2 .

[0028] Among them, in the figure:

[0029] 10-frame, 11-first bracket, 12-second bracket, 13-discharging funnel, 21-funnel, 22-support plate, 221-rotating tube, 23-first vertical plate, 231-feeding port, 24-second vertical plate, 241-discharging port, 25-processing cylinder, 26-notched circular baffle, 261-pass port, 27-first rotating shaft, 28-ultrasonic source, 29-motor, 210-bellows, 211-second rotating shaft, 212-electric telescopic rod, 213-external ultrasonic source, 30-controller, 40-hopper, 41-feeding port, 50-vibrator, 60-feeding port adjustment device, 61-crank handle, 62-threaded rod, 63-nut, 64-adjustment plate, 70-battery, 80-switch. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example 1

[0031] Refer to the attached Figure 1-7The present invention provides a contact seed treatment device based on ultrasonic screening of high-quality crop seeds, comprising: a frame 10, an ultrasonic treatment device and a controller 30, the ultrasonic treatment device comprising a funnel 21, a support plate 22, a first vertical plate 23, a second vertical plate 24, a treatment cylinder 25, a notched circular baffle 26, a first rotating shaft 27, an ultrasonic source 28 and a motor 29, the funnel 21 is mounted on the inner side wall of the frame 10; the support plate 22 is mounted between opposite side walls inside the frame 10, and the support plate 22 is tilted; the first vertical plate 23 and the second vertical plate 24 are detachably mounted on both ends of the support plate 22, and grooves are provided on the side walls on the opposite sides of the first vertical plate 23 and the second vertical plate 24, and the two ends of the treatment cylinder 25 are rotatably connected to the first vertical plate 23 and the second vertical plate 24 respectively through the grooves; a plurality of notched circular baffles 26 are mounted between the first vertical plate 23 and the second vertical plate 24, and the first vertical plate 23 and the second vertical plate 24 are rotated by ... The baffles 26 are fixedly installed on the first rotating shaft 27 at intervals, and multiple notched circular baffles 26 are fixedly installed on the inner wall of the processing cylinder 25, and the notches of the notched circular baffles 26 form a passage 261 with the inner wall of the processing cylinder 25; the first rotating shaft 27 and the processing cylinder 25 are coaxial; multiple ultrasonic sources 28 are installed on the first rotating shaft 27, and the output ends of the multiple ultrasonic sources 28 are respectively abutted against one side of multiple corresponding notched circular baffles 26; one end of the first rotating shaft 27 passes through the second vertical plate 24 and is rotatably connected to the second vertical plate 24, the motor 29 is installed on the outer wall of the second vertical plate 24, and the output end of the motor 29 is fixedly connected to the protruding end of the first rotating shaft 27, a material inlet 231 is provided on the first vertical plate 23, and the funnel 21 is connected to the material inlet 231; a material outlet 241 is provided on the second vertical plate 24. The controller 30 is mounted on the inner top wall of the rack 10. The controller 30 is electrically connected to a switch 80. The switch 80 is provided on a panel at the top of the rack 10. Specifically, the switch 80 includes a motor switch, a vibrator switch, an ultrasonic source switch, an external ultrasonic source switch, and an electric telescopic rod switch. Figure 3 The switches shown in the top view are for illustrative purposes only. The motor 29 and ultrasonic source 28 are electrically connected to the controller 30. A battery 70 is installed within the frame 10, below the first bracket 11, and provides power to the entire device. A discharge hopper 13 is mounted on the frame 10, below the discharge port 241. The other end of the discharge hopper 13 extends out of the frame 10.

[0032] The seeds to be screened enter the processing cylinder 25 through the funnel 21. The motor 29 rotates the processing cylinder 25 between the first vertical plate 23 and the second vertical plate 24 through the rotating shaft and the notched circular baffle 26. After entering the processing cylinder 25, the seeds to be screened fall onto the processing cylinder 25 and the notched circular baffle 26, and as the processing cylinder 25 rotates, they pass through the openings 261 formed by the multiple notched circular baffles 26 and the inner wall of the processing cylinder 25 in sequence. During the process, the seeds to be screened pass through and contact the multiple notched circular baffles 26 in the processing cylinder 25 in sequence. The ultrasonic source 28 on the side of each notched circular baffle 26 performs ultrasonic treatment on the passing seeds. The selected ultrasonic parameters can damage the inferior seeds and prevent them from germination, while enhancing the activity of the high-quality seeds.

[0033] In a preferred embodiment, the notches of two adjacent notched circular baffles 26 face opposite directions, and the openings 261 face opposite directions. When the openings 261 of two adjacent notched circular baffles 26 face opposite directions, the distance that the seeds to be screened travel on the notched circular baffles 26 is increased, thereby increasing the treatment effect of the seeds to be processed as they pass through each notched circular baffle 26. This also increases the travel distance and treatment time of the seeds to be screened within the treatment barrel 25, thereby improving the treatment effect of the seeds to be processed.

[0034] In a preferred embodiment, each ultrasonic source 28 is mounted on the first rotating shaft 27 on the side opposite the opening 261. Because the rotating shaft passes through the center of the notched circular baffle 26, the distance that the seeds to be treated travel on the notched side is short. Positioning the ultrasonic source 28 on the side opposite the opening 261 increases the distance over which the seeds are subjected to ultrasonic treatment as they travel on the notched circular baffle 26.

[0035] The ultrasonic treatment device also includes a bellows 210, a second rotating shaft 211, and an electric telescopic rod 212. The two ends of the bellows 210 are connected to the funnel 21 and the feed port 231, respectively. A rotating tube 221 is provided at one end of the support plate 22. The second rotating shaft 211 passes through the rotating tube 221 and is rotatably connected to the second rotating shaft 211. The two ends of the second rotating shaft 211 are fixedly connected to the side walls of the frame 10. A first bracket 11 is provided inside the frame 10. The bottom end of the electric telescopic rod 212 is hinged to the first bracket 11, and the top end is hinged to the bottom end of the support plate 22. The electric telescopic rod 212 is electrically connected to the controller 30. The extension and contraction of the electric telescopic rod 212 is controlled by a switch 80. Since the top and bottom ends of the electric telescopic rod 212 are hinged to the support plate 22 and the first bracket 11, respectively, the support plate 22 can be driven to rotate about the second rotating shaft 211, thereby adjusting the inclination angle of the treatment cylinder 25. The more horizontal the angle of the processing barrel 25 is, the longer the time the seeds to be processed stay in the processing barrel 25 is, and vice versa, the shorter it is, thereby adjusting the processing time of the seeds to be processed in the processing barrel 25.

[0036] In a preferred embodiment, the ultrasonic treatment device further includes an external ultrasonic source 213 mounted on the support plate 22 and rotatably connected to the outer wall of the treatment barrel 25. Since the treatment barrel 25 is cylindrical and, due to gravity, the seeds to be treated always pass through the multiple openings 261 at the bottom wall of the treatment barrel 25, the external ultrasonic source 213 disposed at the outer bottom end of the treatment barrel 25 can further enhance the ultrasonic treatment effect on the seeds.

[0037] The contact seed treatment device for ultrasonically screening high-quality crop seeds also includes a hopper 40, which is mounted on the top inner portion of the frame 10. The bottom wall of the hopper 40 is tilted to one side, and a drop opening 41 is provided at the bottom end of the hopper 40. The funnel 21 is located below the drop opening 41, and the support plate 22 is tilted in the opposite direction to the tilt of the bottom wall of the hopper 40. This helps utilize gravity to naturally slide the seeds down within the hopper 40, reducing seed residue within the hopper 40, thereby improving seed fluidity and uniformity and reducing the risk of seed clogging and accumulation within the hopper 40. Furthermore, it allows the seeds to evenly enter the drop opening 41 into the funnel 21 and enter the treatment cylinder 25 in an orderly manner.

[0038] In a preferred embodiment, a vibrator 50 is provided on the bottom wall of the hopper 40, and the vibrator 50 is electrically connected to the controller 30; the vibrator 50 is turned on by the controller 30, so that the seeds can enter the funnel 21 evenly from the drop port 41, and the seeds can enter the processing cylinder 25 in an orderly manner.

[0039] The contact seed treatment device for ultrasonic screening of high-quality crop seeds also includes a discharge port adjustment device 60, which includes a crank 61, a threaded rod 62, a nut 63, and an adjustment plate 64. A second bracket 12 is provided inside the frame 10. The threaded rod 62 extends into the frame 10 and is rotatably connected to the top of the frame 10 and the second bracket 12, respectively. The nut 63 is sleeved on the threaded rod 62 and is threadedly connected to the threaded rod 62. A flange on one side of the adjustment plate 64 is fixedly connected to the nut 63. The adjustment plate 64 is slidably connected to the vertical side wall of the hopper 40, and the bottom end of the adjustment plate 64 is located outside the discharge port 41. Turning the crank 61 can control the vertical movement of the adjustment plate 64, thereby adjusting the size of the discharge port 41, so as to accommodate seeds of different sizes and adjust the flow rate of seeds entering the funnel 21 and the processing cylinder 25.

[0040] Working principle:

[0041] The working parameters of the ultrasonic source 28 and the external ultrasonic source 213 are set by the controller 30, and the tilt angle of the processing cylinder 25 is adjusted by the electric telescopic rod 212. The vibrator 50 in the hopper 40 is turned on, and the seeds in the hopper 40 continuously pass through the drop port 41, the funnel 21, the bellows 210 and the feed port 231 into the processing cylinder 25. The motor 29 rotates the processing cylinder 25 between the first vertical plate 23 and the second vertical plate 24 through the rotating shaft and the notched circular baffle 26. After entering the processing cylinder 25, the seeds to be screened fall onto the processing cylinder 25 and the notched circular baffle 26, and pass through multiple notched circular baffles in sequence as the processing cylinder 25 rotates. 26 and the inner wall of the treatment barrel 25 form a passage 261. During the process, the seeds to be screened sequentially pass through and contact the multiple notched circular baffles 26 within the treatment barrel 25. The ultrasonic source 28 on the side of each notched circular baffle 26 performs ultrasonic treatment on the passing seeds. At the same time, due to the cylindrical shape of the treatment barrel 25 and the influence of gravity, the seeds to be treated always pass through the multiple passages 261 on the bottom wall of the treatment barrel 25. The external ultrasonic source 213 located at the bottom of the treatment barrel 25 further enhances the ultrasonic treatment effect on the seeds. The selected ultrasonic parameters can damage low-quality seeds, preventing them from germinating, while enhancing the activity of high-quality seeds. Finally, the seeds fall through the discharge port 241 into the discharge funnel 13 and are discharged from the frame 10, completing the ultrasonic treatment of the seeds. Example 2

[0042] The contact seed treatment method for screening high-quality crop seeds based on ultrasound is characterized by comprising the following steps:

[0043] S1. Screening the seeds to be processed and removing impurities;

[0044] S2. According to the type of seeds to be treated and the expected treatment effect, adjust the operating parameters of the ultrasonic source 28 and the external ultrasonic source 213 so that the ultrasonic source 28 and the external ultrasonic source 213 generate corresponding ultrasonic waves;

[0045] S3. The seeds to be processed are dropped into the processing cylinder 25 through the drop port 41 of the hopper 40. The motor 29 drives the processing cylinder 25 to rotate. The seeds to be processed continuously pass through the port 261. During the process, the seeds contact the notched circular baffle 26 and the inner wall of the processing cylinder 25, and are simultaneously processed by the ultrasonic waves of the ultrasonic source 28 and the external ultrasonic source 213. The selected ultrasonic parameters can damage inferior seeds and prevent them from germinating, while enhancing the activity of high-quality seeds.

[0046] The above is only a specific embodiment of the present invention, and the common knowledge such as the specific structure and characteristics of the scheme is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the structure of the present invention, several variations and improvements can be made, which should also be regarded as the scope of protection of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

[0047] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. Reference can be made to the common and similar parts between the various embodiments. For the devices disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple, and the relevant parts can be referred to the method description.

[0048] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A contact seed treatment device for screening high-quality crop seeds based on ultrasound, characterized in that: include: A frame (10), an ultrasonic processing device and a controller (30), wherein the ultrasonic processing device comprises a funnel (21), a support plate (22), a first vertical plate (23), a second vertical plate (24), a processing cylinder (25), a notched circular baffle (26), a first rotating shaft (27), an ultrasonic source (28) and a motor (29), wherein the funnel (21) is mounted on the inner side wall of the frame (10); the support plate (22) is mounted between opposite side walls inside the frame (10); and the support plate (22) is tilted; the first vertical plate (23) and the second vertical plate (24) are installed at both ends of the support plate (22), and the two ends of the processing cylinder (25) are respectively connected to the side walls of the first vertical plate (23) and the second vertical plate (24) for rotation; a plurality of the notched circular baffles (26) are fixedly installed on the first rotating shaft (27) at intervals, and a plurality of the notched circular baffles (26) are fixedly installed on the inner wall of the processing cylinder (25), and the notches of the notched circular baffles (26) form a through-hole (261) with the inner wall of the processing cylinder (25); the first rotating shaft (27) and the processing cylinder (25) are coaxial; a plurality of the ultrasonic sources (28) are installed on the first rotating shaft (27), and the output ends of the plurality of the ultrasonic sources (28) are respectively in contact with one side of the plurality of notched circular baffles (26); one end of the first rotating shaft (27) passes through the second vertical plate (24) and is connected to the second vertical plate (24) for rotation, and the motor (29) is installed on the second vertical plate (24). On the outer wall of the plate (24), the output end of the motor (29) is fixedly connected to the protruding end of the first rotating shaft (27); the first vertical plate (23) is provided with an inlet (231), and the funnel (21) is connected to the inlet (231); the second vertical plate (24) is provided with an outlet (241); the controller (30) is installed on the inner top wall of the frame (10), and the motor (29) and the ultrasonic source (28) are electrically connected to the controller (30); The notches of two adjacent notched circular baffles (26) face in opposite directions, and the passages (261) face in opposite directions; Each of the ultrasonic sources (28) is mounted on the first rotating shaft (27) on a side opposite to the port (261); The ultrasonic treatment device further comprises an external ultrasonic source (213), which is mounted on the support plate (22) and rotatably connected to the outer wall of the treatment cylinder (25).

2. The contact seed treatment device for screening high-quality crop seeds based on ultrasound according to claim 1, characterized in that: The ultrasonic processing device further comprises a bellows (210), a second rotating shaft (211) and an electric telescopic rod (212), wherein the two ends of the bellows (210) are respectively connected to the funnel (21) and the feed port (231); a rotating tube (221) is provided at one end of the support plate (22); the second rotating shaft (211) passes through the rotating tube (221) and is rotatably connected to the second rotating shaft (211); the two ends of the second rotating shaft (211) are respectively fixedly connected to the side walls of the frame (10); a first bracket (11) is provided inside the frame (10); the bottom end of the electric telescopic rod (212) is hinged to the first bracket (11), and the top end is hinged to the bottom end of the support plate (22); the electric telescopic rod (212) is electrically connected to the controller (30).

3. The contact seed treatment device for screening high-quality crop seeds based on ultrasound according to claim 1, characterized in that: The machine further comprises a hopper (40), wherein the hopper (40) is mounted on the inner top of the frame (10), the bottom wall of the hopper (40) is inclined toward one side, a drop opening (41) is provided at the bottom end of the hopper (40), the funnel (21) is located below the drop opening (41), and the inclination direction of the support plate (22) is opposite to the inclination direction of the bottom wall of the hopper (40).

4. The contact seed treatment device for screening high-quality crop seeds based on ultrasound according to claim 3, characterized in that: A vibrator (50) is provided on the bottom wall of the hopper (40), and the vibrator (50) is electrically connected to the controller (30).

5. The contact seed treatment device for screening high-quality crop seeds based on ultrasound according to claim 3, characterized in that: The invention also includes a blanking opening adjustment device (60), the blanking opening adjustment device (60) including a crank (61), a threaded rod (62), a nut (63) and an adjustment plate (64), a second bracket (12) is provided inside the frame (10), the threaded rod (62) extends into the frame (10) and is rotatably connected to the top of the frame (10) and the second bracket (12), respectively; the nut (63) is sleeved on the threaded rod (62) and is threadedly connected to the threaded rod (62); a flange on one side of the adjustment plate (64) is fixedly connected to the nut (63), the adjustment plate (64) is slidably connected to the vertical side wall of the hopper (40), and the bottom end of the adjustment plate (64) is located outside the blanking opening (41).

6. The contact seed treatment device for screening high-quality crop seeds based on ultrasound according to claim 1, characterized in that: A discharge funnel (13) is provided on the frame (10), and the discharge funnel (13) is located below the discharge port (241); the other end of the discharge funnel (13) extends out of the frame (10).

7. A contact seed treatment method for screening high-quality crop seeds based on ultrasound, characterized in that: The steps include: S1. Screening the seeds to be processed and removing impurities; S2. According to the type of seeds to be treated and the expected treatment effect, the operating parameters of the ultrasonic source (28) and the external ultrasonic source (213) are adjusted so that the ultrasonic source (28) and the external ultrasonic source (213) generate corresponding ultrasonic waves; S3. The seeds to be processed are dropped into the processing cylinder (25) through the drop opening (41) of the hopper (40). The motor (29) drives the processing cylinder (25) to rotate. The seeds to be processed continuously pass through the opening (261). During the process, the seeds contact the notched circular baffle (26) and the inner wall of the processing cylinder (25) and are simultaneously processed by the ultrasonic wave of the ultrasonic source (28) and the external ultrasonic wave source (213). The selected ultrasonic wave parameters can damage the inferior seeds so that they do not germinate, while enhancing the activity of the high-quality seeds.

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