Centrifugal atomization seed coating machine

Abstract

The invention discloses a centrifugal atomization seed coating machine, relates to the technical field of processing equipment, and solves the technical problems that a centrifugal throwing disc is prone to incomplete atomization, linear liquid flow is formed, and non-uniform fog drops are formed. The centrifugal atomization seed coating machine comprises a rack, a coating shell and a measuring bin, the bottom of the coating shell is rotationally connected with a shaft barrel, and a centrifugal atomization shaft is rotationally connected into the shaft barrel; the top end of the centrifugal atomization shaft is connected with a fixing mechanism, an atomization disc is detachably installed on the fixing mechanism, an inner ring pre-shearing area and an outer ring main atomization area are arranged on the top of the atomization disc, short and thick wedge-shaped teeth are fixed to the inner ring pre-shearing area, long and thin wedge-shaped teeth are fixed to the outer ring main atomization area, and a conical flow guide table is fixed to the top of the atomization disc. The atomizing disc adopts a double-area design of short and thick wedge-shaped teeth of an inner ring pre-shearing area and long and thin wedge-shaped teeth of an outer ring main atomizing area, and is matched with a conical flow guide table, so that graded atomization of a coating agent is realized, the problems of incomplete atomization and non-uniform coating thickness are solved, and uniform and compact coating layers are ensured to be formed on the surfaces of seeds such as corn and wheat.

Description

Technical Field

[0001] This invention relates to the field of seed processing equipment technology, specifically a centrifugal atomizing seed coating machine. Background Technology

[0002] Currently, existing seed coating machines are mainly divided into spray type, drum type, and centrifugal type. Among them, centrifugal atomizing seed coating machines are widely used in large-scale seed processing due to their high coating efficiency and high coating agent utilization rate. However, in practical applications, existing centrifugal atomizing coating machines mostly adopt a single-layer simple disc structure centrifugal atomizing disc. When the coating agent contains high molecular polymers, nanomaterials or high concentrations of active ingredients, the centrifugal disc is prone to incomplete atomization, forming linear liquid flow rather than uniform droplets, resulting in uneven coating thickness and affecting the coating effect.

[0003] Existing centrifugal atomizing seed coating machines have a fixed tilting plate installed inside the coating shell. When the material characteristics or process parameters change, or when problems such as accumulation, flying, uneven coating, or sticking to the wall occur during equipment operation, the tilting plate angle needs to be adjusted. The core is to ensure that the material forms a "continuous, uniform, and stable" fluidized flow, guaranteeing full and uniform contact between the coating liquid and the material. When adjusting the tilting plate angle, the top cover of the coating shell needs to be opened. To observe the adjustment effect of the tilting plate, the tilting plate angle needs to be adjusted while the equipment is running. However, when the top cover of the coating shell is opened while the equipment is running, the atomized liquid will scatter, affecting the surrounding working environment and impacting the health of the workers.

[0004] Furthermore, after use, residual coating agent remains on the centrifugal atomizing disc of the centrifugal seed coating machine. Scale buildup on the atomizing disc can lead to increased vibration and accelerated bearing wear. In addition, the corrosiveness of the coating liquid (such as acidic / alkaline formulations) can shorten the lifespan of stainless steel parts and affect the coating quality of the next batch. Manual disassembly and cleaning are often required, which is extremely inconvenient. At the same time, seeds can easily fall into the atomizing disc, causing blockage and affecting its normal operation.

[0005] Based on this, the present invention provides a centrifugal atomizing seed coating machine to solve the above problems. Summary of the Invention

[0006] In view of the above situation and to overcome the defects of the prior art, the present invention provides a centrifugal atomizing seed coating machine. The present invention has a novel structure and ingenious design, and effectively solves the technical problem that incomplete atomization and the formation of linear liquid flow rather than uniform droplets are prone to occur in centrifugal spinning discs.

[0007] A centrifugal atomizing seed coating machine includes a frame, a coating shell and a metering chamber, a shaft cylinder, and a centrifugal atomizing shaft. A fixing mechanism is fixedly connected to the top of the centrifugal atomizing shaft. An atomizing disc is detachably installed on the fixing mechanism. The top of the atomizing disc is provided with an inner pre-shearing zone and an outer main atomizing zone. The inner pre-shearing zone is fixed with short, thick wedge-shaped teeth, and the outer main atomizing zone is fixed with long, thin wedge-shaped teeth. A conical guide platform is fixed to the top of the atomizing disc.

[0008] Preferably, the fixing mechanism includes a fixing base, a movable block is slidably connected inside the fixing base, a T-shaped card block is fixedly connected to the top of the movable block, an installation column is fixedly connected to the bottom of the atomizing disc, an installation groove is opened at the bottom of the installation column, and a card plate matching the T-shaped card block is fixedly connected to the opposite inner side of the installation groove.

[0009] Preferably, the movable block is fixed with a sliding plate, one end of which is rotatably connected to a convex block, and an inner spring is sleeved on the surface of the sliding plate.

[0010] Preferably, each of the inner sides of the coating shell is fixedly connected to a mounting base, and a rotating block is slidably connected inside each of the two mounting bases. A flipping plate is fixedly connected to the bottom of the rotating block, and a rotation limiting mechanism is provided on the rotating block.

[0011] Preferably, the rotation limiting mechanism includes a sleeve, with a sliding rod slidably connected inside the sleeve, and a connecting seat fixedly connected to the bottom end of the sliding rod.

[0012] Preferably, a compression spring is sleeved on the surface of the slide rod, and a connecting block that slides within the connecting seat is fixedly connected to the top of the rotating block.

[0013] Preferably, a sliding tube is slidably connected inside the coating shell, a steam nozzle is fixedly connected to the bottom end of the sliding tube, an umbrella-shaped top cover is fixedly connected to the bottom end of the sliding tube, and a dust suction tube is fixedly connected to the top of the umbrella-shaped top cover.

[0014] The present invention has the following technical effects.

[0015] 1. This invention employs a dual-region design of short, thick wedge-shaped teeth in the inner pre-shearing zone and slender wedge-shaped teeth in the outer main atomization zone of the atomizing disc, combined with a conical guide platform, to achieve graded atomization of the coating agent. This solves the problems of incomplete atomization and uneven coating thickness, ensuring that a uniform and dense coating layer is formed on the surface of seeds such as corn and wheat, thus guaranteeing seed germination rate and stress resistance.

[0016] 2. Through the linkage design of the fixing mechanism, the atomizing disc can be quickly disassembled and installed without tools, greatly improving maintenance and replacement efficiency.

[0017] 3. This invention uses a rotary limiting mechanism and worm gear transmission, along with indicators and scales, to adjust the angle of the flipping plate in a sealed manner without opening the cover, thus avoiding the leakage of atomized liquid that could pollute the environment and harm human health. The angle is adjustable to suit different materials and processes, ensuring uniform material fluidization and further improving the coating effect. At the same time, the rotary limiting mechanism facilitates the disassembly and assembly of the flipping plate, making it easy to clean and maintain the coating agent adhering to the flipping plate.

[0018] 4. The coating agent delivery and steam cleaning functions are integrated into the sliding tube. The coating agent is delivered and the high-pressure steam is supplied through the coating agent cavity and the steam cavity inside the tube, respectively. No additional pipelines are required, which simplifies the structure, reduces maintenance costs, and improves integration. At the same time, during the operation of the coating equipment, the umbrella-shaped top cover can protect the atomizing disc, preventing seeds from falling in and clogging the atomizing disc, which would affect the next use. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0020] Figure 1 This is a schematic diagram of the assembly structure of the frame, coating shell and metering chamber in this invention;

[0021] Figure 2 This is a schematic diagram of the assembly structure of the coating shell, the spinning disc, and the atomizing disc in this invention;

[0022] Figure 3 This is a schematic diagram of the assembly structure of the rectangular through hole, the lifting plate, and the miniature electric push rod in this invention;

[0023] Figure 4 This is a schematic diagram of the assembly structure of the shaft cylinder, centrifugal atomizing shaft and discharge shell in this invention;

[0024] Figure 5 This is a schematic diagram of the assembly structure of the atomizing disc, mounting column, and fixing mechanism in this invention.

[0025] Figure 6 This is a schematic diagram of the assembly structure of the fixed base, the convex block, and the handle in this invention;

[0026] Figure 7 This is a schematic diagram of the assembly structure of the coating shell, the rotation limiting mechanism, and the fixed shell in this invention;

[0027] Figure 8 This is a schematic diagram of the assembly structure of the sleeve, slide bar, and annular plate in this invention.

[0028] Reference numerals: 1. Frame; 2. Coating shell; 3. Shaft cylinder; 4. Centrifugal atomizing shaft; 5. Spinning disc; 6. Fixing mechanism; 601. Fixing base; 602. Groove; 603. Rectangular opening; 604. Slide plate; 605. Moving block; 606. Inner spring; 607. T-shaped locking block; 608. Convex block; 609. Handle; 610. Elastic locking seat; 7. Atomizing disc; 701. Inner ring pre-shearing zone; 702. Short, thick wedge-shaped teeth; 703. Outer ring main atomizing zone; 704. Slender wedge-shaped teeth; 705. Conical guide platform; 706. Mounting column; 707. U-shaped opening; 708. Mounting groove; 709. Locking plate; 8. Cover plate; 9. Fixing cylinder; 10. Rotational limiting mechanism; 01. Sleeve; 102. Movable groove; 103. Slide groove; 104. Annular plate; 105. Slider; 106. Compression spring; 107. Slide rod; 108. Connecting seat; 11. Mounting seat; 12. Tilting plate; 13. Worm gear; 14. Worm; 15. Rotating plate; 16. Indicator; 17. Scale; 18. Discharge shell; 19. Electric push rod; 20. Metering chamber; 21. Rotating block; 22. Connecting block; 23. Fixed shell; 24. Sliding tube; 241. Tube body; 242. Agent cavity; 243. Steam cavity; 25. Rectangular through hole; 26. Lifting plate; 27. Miniature electric push rod; 28. Umbrella-shaped top cover; 29. ​​Steam nozzle; 30. Dust suction pipe; 31. Annular baffle. Detailed Implementation

[0029] The foregoing and other technical contents, features and effects of the present invention are described in conjunction with the appendix below. Figures 1 to 8 The detailed description of the embodiments will make this clear. All references to the following embodiments are made with reference to the accompanying drawings.

[0030] Exemplary embodiments of the present invention will now be described with reference to the accompanying drawings.

[0031] This invention relates to a centrifugal atomizing seed coating machine. The invention includes a frame 1, a coating shell 2, and a metering chamber 20. Both the coating shell 2 and the metering chamber 20 are located on the top of the frame 1. The discharge end of the metering chamber 20 is connected to the coating shell 2. The coating shell 2 has a discharge port on its side. A discharge shell 18 is fixedly connected to the side of the coating shell 2. The discharge shell 18 is connected to the discharge port. A movable door is rotatably connected to the discharge port. The movable door is driven by an electric push rod 19. A top plate is rotatably connected to the top of the discharge shell 18 via a hinge. A handle is installed on the top plate.

[0032] The bottom of the coating shell 2 is rotatably connected to the shaft cylinder 3, and the top of the shaft cylinder 3 is fixedly installed with the swivel disc 5. The centrifugal atomizing shaft 4 is rotatably connected inside the shaft cylinder 3. The shaft cylinder 3 and the centrifugal atomizing shaft 4 are driven by two geared motors respectively. Both geared motors are connected to the power supply and the controller. The top of the centrifugal atomizing shaft 4 is fixedly connected to the fixing mechanism 6, and the atomizing disc 7 is detachably installed on the fixing mechanism 6.

[0033] The top of the atomizing disk 7 is provided with an inner pre-shearing zone 701 and an outer main atomizing zone 703. The inner pre-shearing zone 701 is fixed with short and thick wedge-shaped teeth 702. There are multiple short and thick wedge-shaped teeth 702, which are distributed in a ring in the inner pre-shearing zone 701. The outer main atomizing zone 703 is fixed with long and thin wedge-shaped teeth 704. There are multiple long and thin wedge-shaped teeth 704, which are distributed in a ring in the outer main atomizing zone 703. The top of the atomizing disk 7 is fixed with a conical guide platform 705, and the edge of the atomizing disk 7 is provided with an outer ring plate.

[0034] In this embodiment, during the seed coating process, two geared motors are activated to drive the shaft cylinder 3 and the centrifugal atomizing shaft 4 to rotate, respectively. The shaft cylinder 3 drives the top spinning disc 5 to rotate, and the centrifugal atomizing shaft 4 drives the atomizing disc 7 to rotate at high speed. The conical guide platform 705 guides the coating agent to the inner ring pre-shearing zone 701 of the atomizing disc 7. The coating agent entering the inner ring pre-shearing zone 701 is initially sheared and dispersed by the short and thick wedge-shaped teeth 702 under the action of centrifugal force generated by the rotation of the atomizing disc 7, breaking the agglomeration state of the coating agent. Subsequently, the coating agent is thrown to the outer ring main atomizing zone 703, where it is finely sheared and atomized a second time by the slender wedge-shaped teeth 704 to form uniform and fine droplets. The droplets diffuse in all directions under the action of centrifugal force. At the same time, the spinning disc 5 drives the seeds inside the coating shell 2 to make circular motion, so that the atomized coating agent covers the seed surface, forming a dense and uniform coating layer, thus completing the seed coating.

[0035] As one embodiment, the fixing mechanism 6 includes a fixing base 601, a movable block 605 slidably connected inside the fixing base 601, the movable block 605 being cuboid in shape, a T-shaped locking block 607 fixedly connected to the top of the movable block 605, the T-shaped locking block 607 being located on the side of the top of the movable block 605 off-center, a mounting post 706 fixedly connected to the bottom of the atomizing disc 7, a U-shaped opening 707 being provided at the bottom of the mounting post 706, the size of the U-shaped opening 707 being adapted to the movable block 605, a mounting groove 708 being provided at the top of the U-shaped opening 707, a locking plate 709 being fixedly connected to the opposite inner sides of the mounting groove 708, the locking plate 709 being located at the middle edge of the inner side of the mounting groove 708, the T-shaped locking block 607 being slidably connected inside the mounting groove 708, the size of the T-shaped locking block 607 being adapted to the size of the mounting groove 708 and the locking plate 709, the top of the locking plate 709 overlapping the bottom of the T-shaped locking block 607.

[0036] In this embodiment, when disassembling, cleaning, and maintaining the atomizing disc 7, the sliding block 605 causes the T-shaped locking block 607 to slide within the mounting groove 708, resulting in a misalignment between the T-shaped locking block 607 and the mounting plate 709. At this time, the atomizing disc 7 is lifted upwards, causing the mounting post 706 to disengage from the fixed base 601. Simultaneously, the T-shaped locking block 607 disengages from the mounting groove 708, enabling quick disassembly of the atomizing disc 7 for easy cleaning, maintenance, or replacement. After cleaning and maintaining the atomizing disc 7, the mounting post 706 is installed within the fixed base 601, and the sliding block 605 is slid in the opposite direction, causing the T-shaped locking block 607 to move above the mounting plate 709, thus securing the atomizing disc 7 in place.

[0037] As one embodiment, the fixed base 601 has grooves 602 on its opposite inner sides. The moving block 605 is slidably connected in the two grooves 602. The two grooves 602 have rectangular openings 603 on their opposite inner sides. The sliding plates 604 are slidably connected in the two rectangular openings 603. The size of the sliding plates 604 matches the size of the rectangular openings 603. The two sides of the moving block 605 are fixedly connected to the two sliding plates 604 respectively. One end of the sliding plate 604 is rotatably connected to a convex block 608. The convex block 608 is rotatably connected to the sliding plate 604 through a pivot. The surface of the convex block 608 overlaps with the surface of the fixed base 601. One side of the convex block 608 is fixedly connected to a handle 609, which is arc-shaped.

[0038] As an example, an inner spring 606 is sleeved on the surface of the skateboard 604. One end of the inner spring 606 is fixedly connected to the inner wall of the groove 602, and the other end of the inner spring 606 is fixedly connected to the moving block 605. An elastic bracket 610 is fixedly connected to the surface of the fixed base 601. The elastic bracket 610 may be made of rubber. One end of the handle 609 is engaged in the elastic bracket 610.

[0039] In this embodiment, when disassembling, cleaning, and maintaining the atomizing disc 7, pulling the handle 609 outward causes it to disengage from the elastic seat 610. This causes the handle 609 to rotate the convex block 608 around one end of the slide plate 604. Under the elastic force of the inner spring 606, the moving block 605 slides within the groove 602, allowing the atomizing disc 7 to be disassembled. If the handle 609 is pressed inward, it causes the handle 609 to rotate the convex block 608, which in turn causes the convex block 608 to slide the moving block 605 in the opposite direction. This engages the handle 609 within the elastic seat 610, fixing its position and facilitating the installation of the atomizing disc 7.

[0040] As an example, mounting bases 11 are fixedly connected to the inner sides of the coating shell 2. Rotating blocks 21 are slidably connected inside the two mounting bases 11. The slots opened on the mounting bases 11 are adapted to the rotating blocks 21. A flipping plate 12 is fixedly connected to the bottom of the rotating blocks 21. A cover plate 8 is detachably installed on the top of the coating shell 2. A transparent observation window is provided on the top of the cover plate 8. The cover plate 8 is fixedly installed to the coating shell 2 by fixing bolts. A movable door is rotatably connected to the top of the cover plate 8 by a hinge. A handle is installed on the movable door.

[0041] In this embodiment, when adjusting the angle of the flipping plate 12, the rotating limiting mechanism 10 drives the rotating block 21 to rotate, which in turn drives the flipping plate 12 to rotate, thereby adjusting the angle of the flipping plate 12.

[0042] As one embodiment, a worm gear 13 is fixedly connected to the rotation limiting mechanism 10, a fixed shell 23 is fixedly connected to the top of the cover plate 8, and the same worm 14 is rotatably connected to the inner side of the fixed shell 23. The two ends of the worm 14 are rotatably connected to the fixed shell 23 through bearings. The worm 14 meshes with the worm gear 13. A rotating plate 15 is fixedly connected to one end of the worm 14. The surface of the rotating plate 15 is provided with anti-slip grooves. An indicator 16 is fixedly connected to one end of the worm 14. A scale 17 is provided on one side of the fixed shell 23. The tip of the indicator 16 corresponds to the position of the scale 17.

[0043] In this embodiment, when adjusting the angle of the flipping plate 12, the rotating plate 15 is rotated to drive the worm gear 14 to rotate, which in turn drives the worm wheel 13 to rotate. The rotation of the worm wheel 13 drives the rotation limit mechanism 10 to rotate, which facilitates the adjustment and fixing of the angle of the flipping plate 12. During the adjustment of the angle of the flipping plate 12, the scale 17 indicated by the indicator 16 is observed to facilitate precise adjustment of the flipping plate 12.

[0044] As one embodiment, the rotation limiting mechanism 10 includes a sleeve 101, which is rotatably connected to the cover plate 8 via a bearing seat. A movable groove 102 is provided on the inner side of the sleeve 101, and a sliding groove 103 is provided on the inner side of the movable groove 102. A sliding rod 107 is slidably connected inside the sleeve 101. A pull plate is fixedly connected to the top end of the sliding rod 107. An annular plate 104 is fixedly connected to the surface of the sliding rod 107. The annular plate 104 is adapted to the movable groove 102 and is slidably connected in the movable groove 102. A slider 105 is fixedly connected to the surface of the annular plate 104 and is adapted to the sliding groove 103. The slider 105 is slidably connected in the sliding groove 103. A connecting seat 108 is fixedly connected to the bottom end of the sliding rod 107.

[0045] As an example, a compression spring 106 is sleeved on the surface of the slide rod 107, and a connecting block 22 is fixedly connected to the top of the rotating block 21. The connecting block 22 is a square block and is adapted to the connecting seat 108. The connecting block 22 is slidably connected in the connecting seat 108. There are two flipping plates 12, which are symmetrically arranged in the coating shell 2. The connection structure of the two flipping plates 12 is the same.

[0046] In this embodiment, when disassembling, cleaning, and maintaining the flip plate 12, by pulling the pull plate upward, the pull plate moves the connecting seat 108 away from the connecting block 22 via the slide rod 107. During this process, the slide rod 107 drives the annular plate 104 to compress the compression spring 106, and the slider 105 slides in the slide groove 103. At the same time, by pulling the flip plate 12, the flip plate 12 moves the rotating block 21 away from the mounting base 11, enabling the flip plate 12 to be disassembled, cleaned, and maintained. When installing the flip plate 12 after cleaning and maintenance, while pulling the pull plate upward, the flip plate 12 is moved, causing the flip plate 12 to move the rotating block 21 to slide and install in the mounting base 11. After installation, by releasing the pull plate, under the elastic force of the compression spring 106, the slide rod 107 moves the connecting seat 108 downward, causing the connecting block 22 to slide and connect in the connecting seat 108, enabling the flip plate 12 to be quickly installed and fixed.

[0047] As an example, a fixed cylinder 9 is fixedly connected to the top of the cover plate 8, a sliding tube 24 is slidably connected inside the fixed cylinder 9, a steam nozzle 29 is fixedly connected to the bottom end of the sliding tube 24, an umbrella-shaped top cover 28 is fixedly connected to the bottom of the sliding tube 24, an annular baffle 31 is rotatably connected to the bottom of the umbrella-shaped top cover 28 via a bearing, an elastic pad is provided at the bottom of the annular baffle 31, a suction pipe 30 is fixedly connected to the top of the umbrella-shaped top cover 28, the suction end of the suction pipe 30 is located inside the umbrella-shaped top cover 28, and the other end of the suction pipe 30 is connected to a vacuum cleaner via a connecting hose. The vacuum cleaner is prior art and will not be described in detail here. A lifting plate 26 is fixedly connected to the surface of the sliding tube 24, a rectangular through hole 25 is opened on the surface of the fixed cylinder 9, the lifting plate 26 is slidably connected inside the rectangular through hole 25, a miniature electric push rod 27 is fixedly connected to the top of the cover plate 8, the miniature electric push rod 27 is connected to a power supply and a controller, and the output end of the miniature electric push rod 27 is fixedly connected to the lifting plate 26.

[0048] In this embodiment, when cleaning the atomizing disc 7, the micro electric push rod 27 is activated to lower the lifting plate 26, which in turn lowers the sliding tube 24, which in turn lowers the umbrella-shaped top cover 28. The umbrella-shaped top cover 28 then engages with the annular baffle 31, forming a sealed cavity between the atomizing disc 7 and the umbrella-shaped top cover 28. The atomizing disc 7 is then slowly rotated, and the solidified agent on the surface of the atomizing disc 7 is cleaned by the steam nozzle 29. Simultaneously, a vacuum cleaner is activated to collect the cleaned agent through the suction pipe 30, thus quickly cleaning the atomizing disc 7. After cleaning, the micro electric push rod 27 is used to reset the umbrella-shaped top cover 28. If the coating equipment malfunctions and the spinning disc 5 stops rotating, the flipped seeds will suddenly fall. Under the protection of the umbrella-shaped top cover 28, the seeds will be prevented from falling into the atomizing disc 7, thus avoiding blockage and affecting the next use.

[0049] As one embodiment, the sliding tube 24 includes a tube body 241, and a drug chamber 242 and a steam chamber 243 are respectively provided in the tube body 241. The top ends of the drug chamber 242 and the steam chamber 243 are respectively fixedly connected to a drug metering system and a steam compressor through two connecting hoses. The drug metering system and the steam compressor are connected to a power supply and a controller. The steam chamber 243 is connected to a steam nozzle 29.

[0050] In this embodiment, during the operation of the coating machine, the coating agent can be input into the atomizing disc 7 through the agent tube 242. When cleaning the atomizing disc 7, high-pressure steam is delivered to the steam tube 243 through the steam compressor, so that the high-pressure steam is sprayed out through the steam nozzle 29.

[0051] Working principle of this invention:

[0052] S1. Connect the external power supply and start the equipment. The metering chamber 20 delivers the seeds (corn or wheat) to be coated (in corn or wheat) into the coating shell 2 at a constant speed according to the preset parameters to ensure a stable feed rate. At the same time, the agent metering system delivers the coating agent to the conical guide table 705 at a constant speed according to the preset ratio through the agent tube 243. The conical guide table 705 guides the coating agent to the inner ring pre-shearing zone 701 of the atomizing disk 7.

[0053] S2. Two geared motors drive the shaft cylinder 3 and the centrifugal atomizing shaft 4 to rotate respectively. The shaft cylinder 3 drives the top spinning disc 5 to rotate, and the centrifugal atomizing shaft 4 drives the atomizing disc 7 to rotate at high speed. The coating agent entering the inner pre-shearing zone 701 is sheared and atomized by the centrifugal force generated by the rotation of the atomizing disc 7, forming uniform and fine droplets. The droplets diffuse in all directions under the action of centrifugal force. At the same time, the spinning disc 5 drives the seeds in the coating shell 2 to make circular motion. The atomized coating agent coats the surface of each seed, completing the seed coating.

[0054] S3. Simultaneously, under the action of the flipping plate 12, the seeds inside the coating shell 2 are flipped. If the angle of the flipping plate 12 needs to be adjusted during the processing, there is no need to open the cover plate 8. Just rotate the rotating plate 15 to drive the worm gear 14 and worm wheel 13 to rotate, which in turn drives the rotation limit mechanism 10 and the flipping plate 12 to adjust the angle. Through the correspondence between the indicator 16 and the scale 17, the angle can be accurately controlled.

[0055] S4. When the seed coating reaches the preset standard, start the electric push rod 19 to drive the movable door of the coating shell 2 outlet to open. The qualified coated seeds enter the discharge shell 18 through the discharge port and are collected through the discharge shell 18.

[0056] S5. After seed coating is completed, sequentially shut down the reagent metering system, the reduction motor, and the electric push rod 19 to stop the equipment operation. When cleaning the atomizing disc 7 is required, start the micro electric push rod 27 to lower the lifting plate 26, which in turn lowers the sliding tube 24, causing the umbrella-shaped top cover 28 to descend. This causes the umbrella-shaped top cover 28 to engage with the outer ring plate of the edge of the atomizing disc 7 via the annular baffle 31, creating a sealed cavity between the atomizing disc 7 and the umbrella-shaped top cover 28. The coating device rotates slowly, and the solidified agent on the surface of the atomizing disc 7 is cleaned by the steam nozzle 29. At the same time, the vacuum equipment is started, and the vacuum equipment collects the cleaned agent through the vacuum pipe 30, which can quickly clean the atomizing disc 7. After cleaning, the micro electric push rod 27 drives the umbrella-shaped top cover 28 to reset. When the coating equipment malfunctions and the spinning disc 5 stops rotating, the flipped seeds suddenly fall. Under the protection of the umbrella-shaped top cover 28, the seeds can be prevented from falling into the atomizing disc 7.

[0057] S6. When it is necessary to disassemble and replace the atomizing disc 7, open the movable door on the cover plate 8, pull the handle 609 to disassemble the atomizing disc 7, and then pull the slide bar 107 through the pull plate to separate the connecting seat 108 from the connecting block 22. Disassemble the flip plate 12, clean the coating agent adhering to the surface of the flip plate 12, reinstall after maintenance, and finally clean the inside of the coating shell 2 and the discharge shell 18. Close all moving parts to complete the equipment maintenance and facilitate the next start-up.

[0058] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A centrifugal atomizing seed coating machine, characterized in that, It includes a frame (1), a coating shell (2) and a metering chamber (20), a shaft cylinder (3) and a centrifugal atomizing shaft (4). The top of the centrifugal atomizing shaft (4) is fixedly connected to a fixing mechanism (6). An atomizing disc (7) is installed on the fixing mechanism (6). The top of the atomizing disc (7) is provided with an inner ring pre-shearing zone (701) and an outer ring main atomizing zone (703). The inner ring pre-shearing zone (701) is fixed with short and thick wedge-shaped teeth (702). The outer ring main atomizing zone (703) is fixed with slender wedge-shaped teeth (704). The top of the atomizing disc (7) is fixed with a conical guide platform (705).

2. The centrifugal atomizing seed coating machine according to claim 1, characterized in that, The fixing mechanism (6) includes a fixing seat (601), a movable block (605) is slidably connected inside the fixing seat (601), a T-shaped card block (607) is fixedly connected to the top of the movable block (605), and an installation post (706) is fixedly connected to the bottom of the atomizing disc (7). An installation groove (708) is opened at the bottom of the installation post (706), and a card plate (709) matching the T-shaped card block (607) is fixedly connected to the opposite inner side of the installation groove (708).

3. A centrifugal atomizing seed coating machine according to claim 2, characterized in that, The movable block (605) is fixed with a sliding plate (604), one end of the sliding plate (604) is rotatably connected to a convex block (608), and an inner spring (606) is sleeved on the surface of the sliding plate (604).

4. A centrifugal atomizing seed coating machine according to claim 1, characterized in that, The inner sides of the coating shell (2) are fixedly connected to mounting bases (11), and the interior of the two mounting bases (11) are slidably connected to rotating blocks (21). The bottom of the rotating blocks (21) is fixedly connected to a flipping plate (12), and a rotation limiting mechanism (10) is provided on the rotating blocks (21).

5. A centrifugal atomizing seed coating machine according to claim 4, characterized in that, The rotation limiting mechanism (10) includes a sleeve (101), a slide rod (107) is slidably connected inside the sleeve (101), and a connecting seat (108) is fixedly connected to the bottom end of the slide rod (107).

6. A centrifugal atomizing seed coating machine according to claim 5, characterized in that, A compression spring (106) is sleeved on the surface of the slide bar (107), and a connecting block (22) that slides in the connecting seat (108) is fixedly connected to the top of the rotating block (21).

7. A centrifugal atomizing seed coating machine according to claim 1, characterized in that, A sliding tube (24) is slidably connected inside the coating shell (2). A steam nozzle (29) is fixedly connected to the bottom end of the sliding tube (24). An umbrella-shaped top cover (28) is fixedly connected to the bottom end of the sliding tube (24). A dust suction tube (30) is fixedly connected to the top of the umbrella-shaped top cover (28).

Images