Seed coating equipment applied to modern agricultural technology

Abstract

The invention discloses seed coating equipment applied to the modern agricultural technology, and relates to the technical field of seed coating, the seed coating equipment comprises an outer frame cylinder, a coating cylinder is slidably connected in the outer frame cylinder along the up-down direction, at least two first springs are fixedly connected between the coating cylinder and the outer frame cylinder, the outer frame cylinder is fixedly connected with a motor, and the motor is fixedly connected with the coating cylinder. The outer frame cylinder is rotationally connected with a stirring frame, the stirring frame is fixedly connected with an output shaft of the motor, the outer bottom of the coating cylinder is rotationally connected with a discharging plate, the inner bottom of the coating cylinder is rotationally connected with a scraping plate, and the top of the outer frame cylinder is fixedly connected with a material cylinder. Through the arrangement of the coating cylinder, the discharging frame and other parts, when seeds are coated, weighing and proportioning of the seeds and a coating agent are not needed, the seeds only need to be directly fed, the coating agent in the corresponding proportion can be automatically fed according to the weight of the seeds, operation is easy and convenient, and time and labor are saved. And the problem that the coating agent is too much or too little due to inaccurate manual weighing is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of seed coating, and in particular to a seed coating device used in modern agricultural technology. Background Art

[0002] Seed coating equipment is a kind of mechanical equipment specially used to evenly coat one or more layers of protective or functional materials on the surface of seeds. These protective or functional coating agents are designed to improve the disease resistance of seeds, reduce the mold rate of seeds, shorten the germination time of seeds, and increase the germination rate and crop yield of seeds.

[0003] When using a coating machine to coat seeds, it is usually necessary to accurately add the coating agent in proportion to the number of seeds, and weigh it each time. This process is not only cumbersome but also prone to errors. If the amount of coating agent added is too much or too little, it will have a significant impact on the effect of seed coating.

[0004] Based on the above situation, the present invention proposes a seed coating device used in modern agricultural technology. Summary of the invention

[0005] In order to overcome the disadvantage that it is inconvenient to control the amount of coating agent, the present invention provides a seed coating device used in modern agricultural technology.

[0006] The invention comprises an outer frame tube, the inner part of which is slidably connected to a coating tube in the up-and-down direction, at least two first springs are fixedly connected between the coating tube and the outer frame tube, the outer frame tube is fixedly connected to a motor, the outer frame tube is rotatably connected to a stirring frame, the stirring frame is fixedly connected to the output shaft of the motor, the outer bottom of the coating tube is rotatably connected to a discharge plate, the inner bottom of the coating tube is rotatably connected to a scraper, the scraper is spline-connected to the stirring frame, the top of the outer frame tube is fixedly connected to a material barrel, the material barrel is slidably connected to a discharge frame, the bottom of the discharge frame is provided with annularly distributed liquid outlet holes, the The coating cylinder is provided with a U-shaped bracket symmetrically distributed along the coating cylinder, the U-shaped bracket is engaged with the unloading rack, the coating cylinder is slidably connected with an L-shaped bracket symmetrically distributed along the coating cylinder, the L-shaped bracket is used to fix the coating cylinder, a second spring is fixedly connected between the L-shaped bracket and the coating cylinder, the coating cylinder is fixedly connected with a first electromagnet symmetrically distributed along the coating cylinder, the first electromagnet is slidably connected with the adjacent L-shaped bracket, the L-shaped bracket is fixedly connected with a magnetic block, when power is turned on, the magnetic block cooperates with the adjacent first electromagnet through repulsive magnetic forces.

[0007] In addition, it is particularly preferred that a longitudinally distributed card slot is opened on a side of the coating cylinder close to the L-shaped card plate, and the L-shaped card plate is limitedly matched with the card slot on the same side.

[0008] In addition, it is particularly preferred that a discharge port is provided at the lower portion of the outer frame tube, and a material drop trough with a high middle portion and low sides is provided at one side of the outer frame tube close to the discharge port.

[0009] In addition, it is particularly preferred that it also includes a floating frame, which is slidably connected in the barrel along the up and down directions, and the barrel is horizontally slidably connected to a card frame symmetrically distributed along the barrel, the card frame is engaged with the floating frame, and a third spring symmetrically distributed along the card frame is fixedly connected between the card frame and the barrel, and the L-shaped card plate is slidably connected to a push rod for pushing open the card frame, and a fourth spring is fixedly connected between the push rod and the adjacent L-shaped card plate.

[0010] In addition, it is particularly preferred that a protrusion is provided at one end of the card frame close to the adjacent push rod, and the push rod is in contact with the protrusion of the adjacent card frame.

[0011] Furthermore, it is particularly preferred that the elastic constant value of the fourth spring is greater than the elastic constant value of the third spring.

[0012] In addition, it is particularly preferred that it also includes a second electromagnet symmetrically distributed along the coating cylinder, the second electromagnet is fixedly connected to the coating cylinder, the U-shaped bracket is set to a magnetic material, when power is turned on, the second electromagnet and the adjacent U-shaped bracket cooperate through the magnetic force of attraction, a fifth spring is fixedly connected between the U-shaped bracket and the coating cylinder, and a tension spring is fixedly connected between the unloading rack and the barrel.

[0013] In addition, it is particularly preferred that the U-shaped bracket is slidably connected to the coating drum, and a slope is provided on one side of the U-shaped bracket close to the unloading rack, and the U-shaped bracket is extruded and matched with the unloading rack through the slope.

[0014] In addition, it is particularly preferred that it also includes a baffle plate, which is rotatably connected to the unloading rack, the baffle plate has circular holes distributed in an annular manner, the circular holes of the baffle plate correspond one-to-one with the liquid outlet holes of the unloading rack, the baffle plate is fixedly connected with a telescopic rod symmetrically distributed along the baffle plate, the telescopic end of the telescopic rod is fixedly connected with an elastic wedge block, the elastic wedge block is slidably connected to the barrel, and the wedge surface of the elastic wedge block is in contact with the floating rack.

[0015] In addition, it is particularly preferred that a material guide plate for guiding the coating agent is further included, and the material guide plate is fixedly connected to a side of the unloading frame close to the liquid outlet.

[0016] Compared with the prior art, the present invention has the following advantages: by arranging components such as a coating drum and a feeding rack, the present invention makes it unnecessary to weigh and proportion the seeds and the coating agent when coating the seeds. The seeds can be directly put in and the coating agent in a corresponding proportion can be automatically put in according to the weight of the seeds. The operation is simple and convenient, and the problem of too much or too little coating agent caused by inaccurate weighing is avoided.

[0017] The present invention cooperates with components such as an L-shaped card plate, a floating frame, a card frame and a push rod, so that only when seeds are poured into the coating cylinder and the first electromagnet starts to be energized, the floating frame will be unlocked, thereby unsealing the pipe mouth and starting to fill the material. When the coating agent is filled, the floating frame automatically closes the pipe mouth to automatically stop the feeding of the coating agent, that is, the coating agent is fed when it should be fed and stopped when it should be stopped, thereby ensuring the accuracy of the feeding amount of the coating agent and avoiding the inaccuracy of manual feeding.

[0018] The present invention controls the second electromagnet to be energized so that the U-shaped bracket releases the lock on the feed rack. Under the resetting action of the tension spring, the feed rack pushes the coating agent upward, while reducing the space of the cavity, accelerating the liquid coating agent in the cavity to flow out from the liquid outlet hole onto the seeds in the coating cylinder.

[0019] The present invention arranges components such as a baffle plate and an elastic wedge block so that the coating agent starts to be fed into the coating cylinder through the liquid outlet of the discharge rack only when the cavity is filled with liquid coating agent, thereby avoiding premature feeding and further improving the accuracy of the coating agent feeding amount. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0021] Figure 2 It is a three-dimensional structural schematic diagram of the coating cylinder, the first spring, the motor and other components of the present invention.

[0022] Figure 3 It is a three-dimensional structural schematic diagram of the stirring frame, the blanking plate and the scraper and other components of the present invention.

[0023] Figure 4 It is a schematic diagram of the three-dimensional structure of the coating cylinder, the stirring frame and the material discharge frame separated according to the present invention.

[0024] Figure 5 It is a three-dimensional structural schematic diagram of the second spring, the first electromagnet, the magnetic block and other components of the present invention.

[0025] Figure 6 It is a three-dimensional structural schematic diagram of the floating frame, the clamping frame, the third spring and other components of the present invention.

[0026] Figure 7 It is a schematic diagram of the three-dimensional structure of the floating frame and the card frame of the present invention.

[0027] Figure 8 It is a schematic diagram of the three-dimensional structure of the card frame of the present invention.

[0028] Fig. 9 It is a three-dimensional structural schematic diagram of the second electromagnet, the fifth spring, the tension spring and other components of the present invention.

[0029] Fig.10 It is a three-dimensional structural schematic diagram of the U-shaped bracket, the second electromagnet and the fifth spring of the present invention.

[0030] Fig.11 It is a three-dimensional structural schematic diagram of the material baffle plate, telescopic rod, elastic wedge block and other components of the present invention.

[0031] Fig.12 It is a three-dimensional structural schematic diagram of the barrel, the baffle plate, the telescopic rod and the elastic wedge block of the present invention.

[0032] Fig.13 It is a schematic diagram of the three-dimensional structure of the floating frame, material plate, telescopic rod and elastic wedge block of the present invention.

[0033] Fig.14 It is a three-dimensional structural schematic diagram of the material blocking cylinder, material unloading rack, material guide plate and other components of the present invention.

[0034] In the figure: 1. outer frame cylinder, 2. coating cylinder, 3. first spring, 4. motor, 5. stirring frame, 6. unloading plate, 7. scraper, 8. barrel, 9. unloading frame, 10. U-shaped bracket, 11. L-shaped bracket, 12. second spring, 13. first electromagnet, 14. magnetic block, 15. floating frame, 16. clamping frame, 17. third spring, 18. push rod, 19. fourth spring, 20. second electromagnet, 21. fifth spring, 22. tension spring, 23. material baffle plate, 24. telescopic rod, 25. elastic wedge block, 26. material guide plate. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present invention.

[0036] Example 1: A seed coating device used in modern agricultural technology, such as Figure 1-Figure 5As shown, it includes an outer frame tube 1, a discharge port is opened at the lower part of the outer frame tube 1, and a discharge trough with a high middle and low sides is opened on one side of the outer frame tube 1 near the discharge port, a coating tube 2 is slidably connected to the inside of the outer frame tube 1 along the up and down directions, four first springs 3 are fixedly connected between the coating tube 2 and the outer frame tube 1, a motor 4 is fixedly connected to the lower part of the outer frame tube 1, a stirring frame 5 is rotatably connected to the outer frame tube 1, and the stirring frame 5 is fixedly connected to the output shaft of the motor 4, the outer bottom of the coating tube 2 is rotatably connected to a discharge plate 6, the upper end of the stirring frame 5 passes through the discharge plate 6 and then penetrates into the coating tube 2, the coating tube 2 and the discharge plate 6 can slide up and down along the stirring frame 5, the stirring frame 5 can rotate relative to the coating tube 2 and the discharge plate 6, the inner bottom of the coating tube 2 is rotatably connected to a scraper 7, the scraper 7 is spline-connected to the stirring frame 5, so that the scraper 7 can slide up and down along the stirring frame 5, and the stirring frame 5 can drive the scraper 7 to rotate, and the top of the outer frame tube 1 is fixedly connected to The barrel 8 has a feeding rack 9 which is slidably connected to the barrel 8 in the up-and-down direction, and a liquid outlet hole is arranged at the bottom of the feeding rack 9 in an annular manner. The coating barrel 2 is provided with a U-shaped bracket 10 which is symmetrically distributed along the coating barrel 2. The U-shaped bracket 10 and the feeding rack 9 are engaged with each other. The coating barrel 2 is horizontally slidably connected with an L-shaped clamping plate 11 which is symmetrically distributed along the coating barrel 2. The L-shaped clamping plate 11 is used to fix the coating barrel 2. A longitudinally distributed clamping groove is arranged on one side of the coating barrel 2 close to the L-shaped clamping plate 11. The L-shaped clamping plate 11 is limitedly matched with the clamping groove on the same side. A second spring 12 is fixedly connected between the L-shaped clamping plate 11 and the coating barrel 2. The coating barrel 2 is fixedly connected with a first electromagnet 13 which is symmetrically distributed along the coating barrel 2. The first electromagnet 13 is slidably connected with the adjacent L-shaped clamping plate 11. The L-shaped clamping plate 11 is fixedly connected with a magnetic block 14. When power is turned on, the magnetic block 14 cooperates with the adjacent first electromagnet 13 through repulsive magnetic forces.

[0037] The seeds are poured into the coating drum 2. According to the weight of the poured seeds, the coating drum 2 adaptively descends a corresponding distance, the first spring 3 is compressed, and the coating drum 2 drives the unloading rack 9 to synchronously descend the same distance through the U-shaped bracket 10. At this time, a cavity matching the weight of the seeds is formed between the top of the unloading rack 9 and the barrel 8. Subsequently, the first electromagnet 13 is energized. Under the action of the repulsive magnetic force, the magnetic block 14 drives the L-shaped clamping plate 11 to slide to the side close to the coating drum 2, and the second spring 12 is compressed until the L-shaped clamping plate 11 is clamped into the corresponding clamping groove of the coating drum 2. The tube 2 is fixed to prevent the coating tube 2 from falling again due to the subsequent weight change caused by the addition of liquid coating agent, thereby improving the stability of the seed coating process, and then the liquid coating agent is quickly poured into the cavity, and the liquid coating agent then flows into the coating tube 2 evenly and slowly along the liquid outlet of the discharge rack 9. After the above preparations are completed, the motor 4 is started, and the output shaft of the motor 4 drives the stirring rack 5 to rotate, and the stirring rack 5 drives the scraper 7 to rotate, and the stirring rack 5 evenly stirs the seeds and the liquid coating agent, so that the surface of the seeds is evenly coated with a layer of coating agent, thereby achieving the coating effect.

[0038] After coating is completed, open the discharge plate 6, and the scraper 7 discharges the coated seeds through the discharge port of the outer frame tube 1 to the discharge chute of the outer frame tube 1. When discharging is completed, turn off the motor 4, and cut off the power to the first electromagnet 13. The second spring 12 resets and drives the L-shaped clamping plate 11 to slide to the side away from the coating tube 2, releasing the limit on the coating tube 2. The first spring 3 resets and drives the coating tube 2 to rise, and the coating tube 2 drives the U-shaped clamping frame 10 and the discharge frame 9 to rise and reset synchronously.

[0039] In summary, the present invention, through the arrangement of components such as the coating drum 2 and the discharge rack 9, does not need to weigh and proportion the seeds and the coating agent when coating the seeds. The seeds only need to be directly put in, and the coating agent in a corresponding proportion can be automatically put in according to the weight of the seeds. The operation is simple and the problem of too much or too little coating agent due to inaccurate weighing can be avoided.

[0040] Embodiment 2: Based on embodiment 1, Figure 6-Figure 8 As shown, it also includes a floating frame 15 for blocking the pipe mouth of the barrel 8, the floating frame 15 is slidably connected to the barrel 8 along the up and down directions, the barrel 8 is horizontally slidably connected to a card frame 16 symmetrically distributed along the left and right sides of the barrel 8, the card frame 16 is engaged with the floating frame 15, and a third spring 17 symmetrically distributed along the front and back sides of the card frame 16 is fixedly connected between the card frame 16 and the barrel 8, and a push rod 18 is slidably connected to the upper part of the L-shaped card plate 11 along the up and down directions. When the push rod 18 moves inward, it pushes the card frame 16 to move inward, so as to release the lock of the card frame 16 on the floating frame 15, and a protrusion is provided at one end of the card frame 16 close to the adjacent push rod 18, and the push rod 18 contacts with the protrusion of the adjacent card frame 16, and a fourth spring 19 is fixedly connected between the push rod 18 and the adjacent L-shaped card plate 11, and the elastic coefficient value of the fourth spring 19 is greater than the elastic coefficient value of the third spring 17.

[0041] The pipe mouth of the barrel 8 is connected to an external pipe with a valve, and then the valve is opened all the way. Initially, the floating frame 15 is stuck on the top by the card frame 16. When the first electromagnet 13 is energized, the L-shaped card plate 11 drives the push rod 18 and the fourth spring 19 to move horizontally to the side close to the coating barrel 2. Since the elastic coefficient of the fourth spring 19 is greater than the elastic coefficient of the third spring 17, the push rod 18 squeezes the card frame 16 to slide inward, and the third spring 17 is compressed, so that the card frame 16 releases the lock on the floating frame 15. At this time, under the action of gravity, the floating frame 15 slides downward until it contacts the top of the unloading frame 9, so that the floating frame 15 no longer blocks the pipe mouth of the barrel 8. After the card frame 16 can no longer slide, the push rod 18 quickly passes over the protrusion of the card frame 16 inward, and the third spring 17 resets and drives the card frame 16 to reset.

[0042] After the floating frame 15 no longer blocks the nozzle of the barrel 8, the liquid coating agent is introduced into the barrel 8 through the external pipe. Under the action of buoyancy, the floating frame 15 gradually floats upward, and the liquid coating agent quickly fills the cavity. The floating frame 15 floats upward until it contacts the clamping frame 16, first squeezing the clamping frame 16, and the third spring 17 is compressed. Then the third spring 17 is reset, so that the floating frame 15 and the clamping frame 16 are engaged with each other, so that the nozzle of the barrel 8 can be blocked again. In this way, it is possible to automatically stop pouring the coating agent when the coating agent is full.

[0043] When the first electromagnet 13 is powered off, the L-shaped clamping plate 11 drives the push rod 18 and the fourth spring 19 to move horizontally to the side away from the coating cylinder 2. Since the clamping frame 16 is stuck by the floating frame 15, the clamping frame 16 cannot be pulled out. At this time, the push rod 18 is squeezed downward by the fixed clamping frame 16, and the fourth spring 19 is compressed until the push rod 18 quickly passes over the protrusion of the clamping frame 16. The fourth spring 19 resets and drives the push rod 18 to slide upward.

[0044] In summary, the present invention cooperates with the L-shaped card plate 11, the floating frame 15, the card frame 16 and the push rod 18 so that the floating frame 15 will be unlocked only when the seeds are poured into the coating cylinder 2 and the first electromagnet 13 starts to be energized, thereby unsealing the pipe mouth and starting to fill the material. When the coating agent is filled, the floating frame 15 automatically closes the pipe mouth to automatically stop the feeding of the coating agent, that is, the coating agent is fed when it should be fed and stopped when it should be stopped, thereby ensuring the accuracy of the coating agent feeding amount and avoiding the inaccuracy of manual feeding.

[0045] like Figure 9-10 As shown, it also includes a second electromagnet 20 symmetrically distributed along the coating cylinder 2, the second electromagnet 20 is fixedly connected to the coating cylinder 2, and the U-shaped bracket 10 is set to a magnetic material. When power is turned on, the second electromagnet 20 and the adjacent U-shaped bracket 10 cooperate through the magnetic force of attraction, and the U-shaped bracket 10 is slidingly connected to the coating cylinder 2. An inclined surface is provided on the side of the U-shaped bracket 10 close to the unloading rack 9, and the U-shaped bracket 10 is squeezed and matched with the unloading rack 9 through the inclined surface. A fifth spring 21 is fixedly connected between the U-shaped bracket 10 and the coating cylinder 2, and a tension spring 22 is fixedly connected between the unloading rack 9 and the barrel 8.

[0046] When the coating agent is filled and the floating frame 15 blocks the pipe mouth of the barrel 8 again, the second electromagnet 20 is energized. Under the magnetic attraction of the second electromagnet 20, the U-shaped bracket 10 slides to the side of the compressed fifth spring 21, so that the U-shaped bracket 10 releases the lock on the unloading rack 9. At this time, under the resetting action of the tension spring 22, the unloading rack 9 pushes the coating agent upward, while reducing the space in the cavity, accelerating the liquid coating agent in the cavity to flow out from the liquid outlet to the seeds in the coating barrel 2.

[0047] After all the liquid coating agent in the cavity is discharged into the coating drum 2, the second electromagnet 20 is controlled to be de-energized, and the fifth spring 21 is reset to drive the U-shaped bracket 10 to slide in the opposite direction and reset. When the coating drum 2 moves upward, the coating drum 2 drives the U-shaped bracket 10 to move upward. When the inclined surface of the U-shaped bracket 10 contacts the bottom of the unloading rack 9, the unloading rack 9 first squeezes the U-shaped bracket 10 to slide to the side of the compressed fifth spring 21. After that, the fifth spring 21 is reset to drive the U-shaped bracket 10 to slide in the opposite direction and clamp the bottom of the unloading rack 9.

[0048] like Figure 11-13 As shown, it also includes a baffle plate 23, which is rotatably connected to the unloading rack 9. The baffle plate 23 is provided with circular holes distributed in an annular pattern. The circular holes of the baffle plate 23 correspond one to one with the liquid outlet holes of the unloading rack 9. The top of the baffle plate 23 is fixedly connected with a telescopic rod 24 which is symmetrically distributed along the baffle plate 23. The telescopic rod 24 is located in the unloading rack 9. The telescopic end of the telescopic rod 24 is fixedly connected with an elastic wedge block 25. The elastic wedge block 25 is slidably connected to the barrel 8, and the wedge surface of the elastic wedge block 25 is in contact with the floating rack 15.

[0049] When the material discharging rack 9 moves up and down, it drives the material baffle plate 23 to move up and down synchronously, and the telescopic rod 24 is adaptively extended and retracted. When the floating rack 15 slides downward under the action of gravity, the floating rack 15 no longer squeezes the elastic wedge block 25, and the elastic wedge block 25 is reset. The elastic wedge block 25 drives the material baffle plate 23 to rotate through the telescopic rod 24, so that the circular hole of the material baffle plate 23 is misaligned with the liquid outlet hole of the material discharging rack 9. When the floating rack 15 slides upward under the action of buoyancy, the floating rack 15 squeezes the elastic wedge block 25, and the elastic wedge block 25 drives the material baffle plate 23 to rotate in the opposite direction through the telescopic rod 24, so that the circular hole of the material baffle plate 23 is aligned with the liquid outlet hole of the material discharging rack 9. In this way, only when the cavity is filled with liquid coating agent, the coating agent begins to be fed into the coating cylinder 2 through the liquid outlet hole of the material discharging rack 9, so as to avoid the coating agent being fed into the coating cylinder 2 in advance, thereby further improving the accuracy of the coating agent feeding amount.

[0050] like Fig.14 As shown, it also includes a guide plate 26 for guiding the coating agent. The guide plate 26 is fixed to one side of the unloading frame 9 close to the liquid outlet. A part of the coating agent is guided to the middle of the coating cylinder 2 through the guide plate 26, and the other part is evenly guided to the edge of the coating cylinder 2 through the circumferentially distributed rectangular holes. In this way, the coating agent is evenly distributed to avoid being distributed only on the edge of the coating cylinder 2 due to flowing out through the liquid outlet.

[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the present invention.

Claims

1. A seed coating device used in modern agricultural technology, characterized by: The invention comprises an outer frame tube (1), wherein a coating tube (2) is slidably connected to the inside of the outer frame tube (1) in the up-down direction, at least two first springs (3) are fixedly connected between the coating tube (2) and the outer frame tube (1), the outer frame tube (1) is fixedly connected to a motor (4), the outer frame tube (1) is rotatably connected to a stirring frame (5), the stirring frame (5) is fixedly connected to the output shaft of the motor (4), the outer bottom of the coating tube (2) is rotatably connected to a discharge plate (6), the inner bottom of the coating tube (2) is rotatably connected to a scraper (7), the scraper (7) is spline-connected to the stirring frame (5), a material barrel (8) is fixedly connected to the top of the outer frame tube (1), a discharge frame (9) is slidably connected to the inside of the material barrel (8), the bottom of the discharge frame (9) is provided with annularly distributed liquid outlet holes, the coating tube (2 ) is provided with a U-shaped bracket (10) symmetrically distributed along the coating cylinder (2), the U-shaped bracket (10) and the unloading rack (9) are mutually engaged, the coating cylinder (2) is slidably connected to an L-shaped bracket (11) symmetrically distributed along the coating cylinder (2), the L-shaped bracket (11) is used to fix the coating cylinder (2), a second spring (12) is fixedly connected between the L-shaped bracket (11) and the coating cylinder (2), the coating cylinder (2) is fixedly connected to a first electromagnet (13) symmetrically distributed along the coating cylinder (2), the first electromagnet (13) is slidably connected to the adjacent L-shaped bracket (11), the L-shaped bracket (11) is fixedly connected to a magnetic block (14), when power is turned on, the magnetic block (14) and the adjacent first electromagnet (13) cooperate through repulsive magnetic forces.

2. A seed coating device used in modern agricultural technology according to claim 1, characterized in that: A longitudinally distributed clamping groove is formed on one side of the coating cylinder (2) close to the L-shaped clamping plate (11), and the L-shaped clamping plate (11) is limitedly matched with the clamping groove on the same side.

3. A seed coating device used in modern agricultural technology according to claim 2, characterized in that: A discharge port is provided at the lower part of the outer frame tube (1), and a material drop trough having a high middle and low sides is provided on one side of the outer frame tube (1) close to the discharge port.

4. A seed coating device used in modern agricultural technology according to claim 3, characterized in that: The invention also comprises a floating frame (15), wherein the floating frame (15) is slidably connected to the barrel (8) in the up-down direction, the barrel (8) is horizontally slidably connected to a clamping frame (16) symmetrically distributed along the barrel (8), the clamping frame (16) is engaged with the floating frame (15), a third spring (17) symmetrically distributed along the clamping frame (16) is fixedly connected between the clamping frame (16) and the barrel (8), the L-shaped clamping plate (11) is slidably connected to a push rod (18) for pushing open the clamping frame (16), and a fourth spring (19) is fixedly connected between the push rod (18) and the adjacent L-shaped clamping plate (11).

5. A seed coating device used in modern agricultural technology according to claim 4, characterized in that: A protrusion is provided at one end of the card frame (16) close to the adjacent push rod (18), and the push rod (18) contacts the protrusion of the adjacent card frame (16).

6. A seed coating device used in modern agricultural technology according to claim 5, characterized in that: The elastic coefficient value of the fourth spring (19) is greater than the elastic coefficient value of the third spring (17).

7. A seed coating device used in modern agricultural technology according to claim 6, characterized in that: It also includes a second electromagnet (20) symmetrically distributed along the coating drum (2), the second electromagnet (20) is fixedly connected to the coating drum (2), the U-shaped bracket (10) is set to a magnetic material, when power is turned on, the second electromagnet (20) and the adjacent U-shaped bracket (10) cooperate through the magnetic force of attraction, a fifth spring (21) is fixedly connected between the U-shaped bracket (10) and the coating drum (2), and a tension spring (22) is fixedly connected between the unloading rack (9) and the barrel (8).

8. A seed coating device used in modern agricultural technology according to claim 7, characterized in that: The U-shaped bracket (10) is slidably connected to the coating drum (2); a slope is provided on a side of the U-shaped bracket (10) close to the unloading rack (9); and the U-shaped bracket (10) is pressed and matched with the unloading rack (9) via the slope.

9. A seed coating device used in modern agricultural technology according to claim 8, characterized in that: The invention also comprises a baffle plate (23), the baffle plate (23) being rotatably connected to the material unloading frame (9), the baffle plate (23) being provided with circular holes distributed in an annular pattern, the circular holes of the baffle plate (23) corresponding one to one with the liquid outlet holes of the material unloading frame (9), the baffle plate (23) being fixedly connected with telescopic rods (24) symmetrically distributed along the baffle plate (23), the telescopic ends of the telescopic rods (24) being fixedly connected with elastic wedge blocks (25), the elastic wedge blocks (25) being slidably connected to the material barrel (8), and the wedge-shaped surfaces of the elastic wedge blocks (25) being in contact with the floating frame (15).

10. A seed coating device used in modern agricultural technology according to claim 9, characterized in that: It also includes a material guide plate (26) for guiding the coating agent, wherein the material guide plate (26) is fixedly connected to a side of the material discharge frame (9) close to the liquid outlet.

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