Seed layered coating forming equipment

Abstract

The invention belongs to the technical field of seed coating, and particularly relates to seed layered coating forming equipment which comprises a supporting rack, a chain scraper conveyor, a chain plate, a supporting groove, a rubber patch, a shaping groove, four pushing structures, three hole pressing structures, a seed coating device, a spraying structure, a shaping drying structure and a shifting rope. An independent coating space can be provided for seeds through the formed shaping groove, adhesion between the seeds is avoided, the coating rate of a single seed is effectively improved, and when the shaping groove sequentially passes through the three hole pressing structures in the conveying direction of the chain scraper conveyor, the aperture of a groove pit pressed by the pressing head can be gradually reduced, so that the seed coating efficiency is improved. Subsequent filling is facilitated; and under the action of a discharging structure and a hole pressing structure which are located in the discharging working area, the shaping grooves are conveniently filled with bacterial powder, soil and seeds in a layered structure subsequently.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of seed coating, and particularly relates to a seed layered coating forming device. BACKGROUND

[0002] The seed coating has the advantages that the coated seed can form a physical barrier to protect the seed from pests, and workers can add corresponding nitrogen fertilizer, phosphorus fertilizer, potassium fertilizer, microbial inoculant and water-retaining agent according to actual needs during the coating process to provide nutrients required by the seed in the initial germination stage. SUMMARY

[0003] (I) Technical problems solved The seed layered coating forming device is provided to solve the problems that the existing coating device is prone to cause the seeds to be wrapped together due to the adhesion of the adhesive between the seeds during the coating process of the seeds, the coating rate of the single seed is reduced, the subsequent sowing is affected, and the planting density is uneven.

[0004] (II) Technical content To achieve the above object, the application provides the following technical scheme. A seed layered coating forming device, comprising a support frame and a chain plate conveyor installed on the support frame, a plurality of chain plates on the chain plate conveyor are provided with support grooves, the chain plates are fixedly connected with rubber patches, the rubber patches are provided with shaping grooves, and the shaping grooves are clamped in the support grooves. The inside of the chain plate conveyor is provided with a pushing structure through a support, the pushing structure comprises a plurality of push-pull rods corresponding to the plurality of support grooves and two guide rails fixedly connected to the support, the push-pull rods are slidingly inserted into the corresponding support grooves, the top of the push-pull rod penetrates through the support groove and is fixedly connected with the bottom of the shaping groove, the push-pull rod is located between the two guide rails, two groups of rolling members are symmetrically connected to the outer wall of the push-pull rod, the rolling members comprise two rollers, the guide rails are located between the two rollers on the same side, and the top and the bottom of the guide rail are in rolling contact with the corresponding two rollers, respectively. A seed covering device is placed on one side of the chain plate conveyor. The top of the chain plate conveyor is sequentially provided with a discharging structure, a spraying structure and a shaping and drying structure along the conveying direction of the chain plate conveyor.

[0005] Further, the guide rail is sequentially divided into a discharging work area, a seed covering work area, a top sealing work area, a spraying work area, a drying work area, a demolding work area, a cleaning work area and a resetting work area along the conveying direction of the chain plate conveyor. The discharging structure is provided with four, and the first three discharging structures and the hole pressing structure are located in the discharging work area along the conveying direction of the chain plate conveyor. The seed covering device is located in the seed covering work area. The other discharging structure is located in the top sealing work area. The spraying structure is located in the spraying work area. The shaping and drying structure is located in the drying work area. The guide rails in the demolding work area and the resetting work area are both inclined, and the high end of the guide rail in the demolding work area is communicated with the guide rail in the drying work area, and the low end is communicated with the guide rail in the cleaning work area. The high end of the guide rail in the resetting work area is communicated with the guide rail in the cleaning work area, and the low end is communicated with the guide rail in the discharging work area. The rope is located in the cleaning work area.

[0006] Further, a plurality of support grooves are provided on the chain plate at equal intervals, the pushing structure is provided with a plurality of groups, a plurality of shaping grooves corresponding to the support grooves are provided on the rubber patch, the shaping grooves are clamped in the corresponding support grooves, and the outer wall of the shaping groove is fitted with the inner wall of the support groove. The surfaces of the rubber patch and the shaping groove are both sprayed with a nano anti-sticking coating. The bottom of the support groove is fixedly connected with a limiting sleeve, the push-pull rod is slidingly inserted in the limiting sleeve, the inner wall of the limiting sleeve is circumferentially provided with a sliding groove, and the outer wall of the push-pull rod is fixedly connected with a slide convex corresponding to the sliding groove, and the slide convex is slidingly inserted in the corresponding sliding groove. The outer wall of the push-pull rod is fixedly connected with four shaft rods, the four shaft rods are symmetrically distributed on the outer wall of the push-pull rod in pairs, the two shaft rods on the same side are arranged in an up-down manner, and four rollers are rotatably arranged on the four shaft rods. A plurality of stable pressure through holes are provided on the support groove.

[0007] Furthermore, the feeding structure includes an isolation base plate and a feeding box fixed to the top of the chain conveyor. There is a gap between the bottom of the isolation base plate and the top of the chain plate below it. The bottom of the isolation base plate is provided with multiple material leakage holes. As the chain conveyor drives the chain plate to move, when the chain plate moves directly under the isolation base plate, the material leakage holes correspond one-to-one with the support grooves that move directly under the isolation base plate, and the center of the material leakage holes and the corresponding support grooves are on the same straight line. The isolation base plate is U-shaped, and two lead screws are rotatably connected between the two side walls. The two lead screws have the same thread direction. The feeding box is fixedly connected to the two sides of the lead screws with the connecting sleeves, which mesh with the threads of the lead screws on the same side. A first rotary motor is fixedly connected to the side wall of the isolation base plate. The first rotary motor is fixedly connected to one of the lead screws. The ends of the two lead screws away from the first rotary motor extend out of the isolation base plate, and a first gear disk is fixedly sleeved on each of the extended lead screws. The two first gear disks mesh with the same first toothed belt. The bottom of the feeding box is fixedly connected to multiple discharge nozzles. The bottom of the discharge nozzles slides in contact with the isolation base plate. A scraper head is fixedly connected to the bottom of the inner wall of the discharge nozzles, and the scraper head slides in contact with the isolation base plate. The inner wall of the feeding box is rotatably connected to a separating roller. The separating roller is located directly above multiple discharge nozzles. The inner cavity of the discharge nozzles is separated from the inner cavity of the feeding box by the separating roller. Multiple material grooves are circumferentially opened on the roller body of the separating roller located directly above the discharge nozzles. The inner wall of the feeding box is also rotatably connected to a stirring rod, which is located above the separating roller. The same end of the stirring rod and the separating roller extends out of the feeding box, and gears are fixedly sleeved on both the extended stirring rod and the separating roller, with the two gears meshing. Along the conveying direction of the chain conveyor, there are three material feeding structures located in the material feeding working area. The diameter of the material discharge hole on one of the isolation base plates is larger than the diameter of the material discharge hole on its adjacent isolation base plate.

[0008] Furthermore, a second rotary motor is fixedly connected to the side of the feeding box near the gear, and the output shaft of the second rotary motor is fixedly connected to the stirring rod.

[0009] Furthermore, a rack plate is fixed between the two side walls of the isolation base plate, and the rack plate meshes with one of the gears.

[0010] Furthermore, the pressing structure includes an inverted U-shaped first support frame. The bottom of the first support frame is fixed to the top of the chain conveyor. A hydraulic telescopic rod is fixed to the top of the first support frame. The telescopic end of the hydraulic telescopic rod slides through the first support frame and is fixed to a pressure plate at its end. The pressure plate is located above the chain plate. Multiple spacer rods are threaded to the bottom of the pressure plate. As the chain conveyor drives the chain plate to move, when the chain plate moves directly below the pressure plate, the spacer rods correspond one-to-one with the support grooves located below the pressure plate. A pressing head is fixed to the bottom of the spacer rod. The pressing head is in the shape of an inverted frustum, and the center of the pressing head and the center of the corresponding support groove are on the same straight line. Along the conveying direction of the chain conveyor, there are three pressure hole structures located in the unloading working area, one of which has a pressure head with a volume larger than the pressure head on its adjacent pressure plate.

[0011] Furthermore, the spray structure includes an inverted U-shaped second support frame. The bottom of the second support frame is fixed to the top of the chain conveyor. The second support frame is located above the chain plate. Multiple spray heads are fixed on the second support frame. The water outlets of the multiple spray heads extend to the bottom of the second support frame. As the chain conveyor drives the chain plate to move, when the chain plate moves directly below the second support frame, the water outlets of the spray heads correspond one-to-one with the support grooves located below the second support frame. The water outlets of the spray heads are located directly above the corresponding support grooves, and the water inlet is connected to an external water supply pump through a water pipe.

[0012] Furthermore, the shaping and drying structure includes a heat insulation frame fixed to the top of the chain conveyor, with a gap between the bottom of the heat insulation frame and the top of the chain plate below it, and an electric heating tube fixed inside the heat insulation frame, which is connected to the power supply wire of an external power supply device.

[0013] Furthermore, multiple sets of mating ears are symmetrically fixed to both sides of the support frame, and the same pull rope is fixed between two symmetrically placed mating ears. When the groove of the shaping groove faces downward, the pull rope is located below the groove of the shaping groove. The first collection box is mounted on the support frame and is located directly below the demolding work area and multiple guide ropes. Multiple sets of docking ears are located on the side of the cleaning work area close to the demolding work area; A U-shaped bracket is fixed to the support frame, and at least two rotating rollers are rotatably connected to the bracket. Multiple sets of bristles are fixed to the rotating rollers in a circular pattern. When the opening of the shaping groove faces downward, the bristles are located below the opening of the shaping groove. Multiple rotating rollers have a bracket extending from the same end, and a second gear disk is fixedly sleeved on each of the extended rotating rollers. The two second gear disks mesh with the same second toothed belt. A third rotary motor is fixedly connected to the side of the card holder away from the second gear disk, and the output shaft of the third rotary motor is fixedly connected to one of the rotating rollers; A second collection box is held in place on the holder. The second collection box is located directly below the rotating roller and is located on the side of the cleaning working area away from the demolding working area.

[0014] (III) Beneficial Effects Compared with the prior art, the beneficial effects of the present invention are as follows: I. In this invention, along the conveying direction of the chain conveyor, the operator sequentially places sodium carboxymethyl cellulose, bacterial powder, soil fertilizer, and sodium carboxymethyl cellulose in four feeding boxes. During operation, the sodium carboxymethyl cellulose, bacterial powder, and soil fertilizer are sequentially filled into the shaping grooves layer by layer through three feeding structures and a pressing structure set in the feeding working area. Seeds are placed in the corresponding pits through a covering device set in the feeding working area. Adhesive is filled to the top of the shaping grooves through the feeding structure set in the sealing working area for sealing. The corresponding shaping grooves are sprayed by a spraying structure set in the spraying working area. At this time, the sodium carboxymethyl cellulose absorbs water and becomes colloidal upon contact with water. The moisture in the shaping grooves is dried by the shaping and drying structure set in the drying working area. The gel-like sodium carboxymethyl cellulose is dried and shaped. After shaping, the bacterial powder, soil fertilizer, and seeds are protected by being encapsulated in the sodium carboxymethyl cellulose. A pushing structure located in the demolding working area pushes the shaped sodium carboxymethyl cellulose from the shaping groove into the first collection box for automatic collection. A pull rope separates a small amount of the shaped sodium carboxymethyl cellulose that is stuck together from the shaping groove. A rotating roller and brush clean the surface of the outward-convex shaping groove, sweeping a small amount of solid sodium carboxymethyl cellulose adhering to the surface of the shaping groove into the second collection box. A pushing structure located in the resetting working area gradually flips the outward-convex shaping groove inward to reset it, facilitating the next working cycle. The shaped grooves provide a separate space for coating each seed, preventing them from sticking together and effectively increasing the coating rate of a single seed.

[0015] 2. In this invention, along the conveying direction of the chain conveyor, there are three pressing hole structures in the unloading working area. The volume of the pressing head on one of the pressing plates is larger than the volume of the pressing head on its adjacent pressing plate. As the shaping groove passes through these three pressing hole structures in sequence, the diameter of the groove pressed out by the pressing head will gradually decrease, so as to facilitate subsequent filling. Along the conveying direction of the chain conveyor, there are three material feeding structures in the material feeding working area. The diameter of the material leakage hole on one of the isolation base plates is larger than the diameter of the material leakage hole on its adjacent isolation base plate, so as to facilitate the subsequent filling of bacterial powder, soil fertilizer, and seeds into the corresponding slots. After filling, the adhesive, bacterial powder, soil fertilizer, and seeds in the shaping groove are distributed in a layered structure.

[0016] Third, in this invention, workers can interchange the order of placing the feeding boxes containing bacterial powder and soil fertilizer according to actual needs; other fertilizers, bacterial powder and plant hormone powder can also be placed in these two feeding boxes; workers can also install several feeding structures and pressing structures in the feeding work area, so as to fill the various nutrients required for seed growth into the shaping groove layer by layer, and realize the layered slow release of nutrients.

[0017] Fourth, in this invention, the rubber patch and shaping groove not only provide a coating space for seed coating, but also separate the push-pull rod from sodium carboxymethyl cellulose, preventing sodium carboxymethyl cellulose from leaking between the push-pull rod and the limiting sleeve, thus affecting the sliding of the push-pull rod.

[0018] Fifth, in this invention, the pressure-stabilizing through hole can prevent the gap between the support groove and the shaping groove from widening when the push-pull rod pushes the shaping groove outward. At this time, the outside air will flow into the space between the support groove and the shaping groove through the pressure-stabilizing through hole, thus avoiding the situation where the push-pull rod is unable to push the shaping groove due to the formation of negative pressure in the gap.

[0019] VI. In this invention, when the chain plate moves along the demolding working area, the roller will gradually move from the high end of the guide rail located in the demolding working area to the low end. During the movement, the support groove will gradually approach the roller, and the push rod will gradually push the bottom of the shaping groove outward. At this time, the groove wall of the shaping groove, which is in a concave state, will gradually turn outward and separate from the shaped sodium carboxymethyl cellulose. When the roller moves to the low end, the shaping groove, which is in a concave state, will change to a convex state. The shaped sodium carboxymethyl cellulose will separate from the shaping groove, which is in a convex state, and fall into the first collection box for collection, thereby completing the demolding.

[0020] VII. In this invention, during the demolding process, a small portion of the shaped sodium carboxymethyl cellulose will adhere to the bottom of the convex shaping groove and move with the chain plate. After the demolding is completed, the chain plate will move to the cleaning work area, and the corresponding rollers will also move to the guide rail located in the cleaning work area. During the movement, the set pull rope can block the shaped sodium carboxymethyl cellulose that moves with the chain plate, thereby pushing the shaped sodium carboxymethyl cellulose to separate from the corresponding shaping groove and fall into the first collection box for collection.

[0021] 8. In this invention, the output shaft of the third rotary motor drives the corresponding rotating roller to rotate. The second gear disk fixedly sleeved on the rotating roller drives another second gear disk to rotate under the action of the second toothed belt, thereby causing the other rotating roller to rotate. When the rotating roller rotates, the surface of the convex shaping groove can be cleaned by the brush bristles, and a small part of the sodium carboxymethyl cellulose solid adhering to the surface of the shaping groove is cleaned into the second collection box. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 for Figure 1 A magnified view of a section at point A in the middle; Figure 3 for Figure 1 A magnified view of a section at point B in the middle; Figure 4 This is a schematic diagram of the structure in this invention where multiple sets of guide rails are fixed to the bracket; Figure 5 This is an exploded view of the chain plate, rubber patch, and roller in this invention; Figure 6 This is a schematic diagram of the guide rail structure in this invention; Figure 7 This is a schematic diagram of the pushing structure in this invention; Figure 8 This is a schematic diagram of the structure from another perspective in the present invention; Figure 9 This is a partial cross-sectional view of the feeding box in this invention; Figure 10 for Figure 9 A magnified view of a section at point C; Figure 11 This is a schematic diagram of the rack plate provided in the second embodiment of the present invention; Figure 12 This is a schematic diagram of the spray structure in this invention; Figure 13 This is a partial cross-sectional view of the heat insulation frame in this invention; Figure 14 This is a cross-sectional view of the adhesive after it has been set in this invention; Figure 15 This is a schematic diagram of the structure in this invention where the push-pull rod gradually pushes out the shaped adhesive; Figure 16 This is a schematic diagram of the rotating roller and brush bristles in this invention; Figure 17 for Figure 16 A magnified view of a section at point D; Figure 18 This is a schematic diagram of the structure in this invention where the push-pull rod gradually pulls the convex groove back into its original position.

[0023] In the diagram: 11. Support frame; 12. Seeding device; 13. Connecting ear; 14. First collection box; 15. Card seat; 151. Third rotary motor; 16. Rotating roller; 161. Brush; 17. Second gear disc; 18. Second toothed belt; 19. Second collection box; 21. Chain conveyor; 211. Bracket; 22. Chain plate; 2201. Pressure stabilizing through hole; 221. Support groove; 23. Rubber patch; 231. Shaping groove; 24. Limiting sleeve; 2401. Slide groove; 31. Push-pull rod; 311. Sliding protrusion; 312. Shaft; 32. Guide rail; 321. Material feeding working area; 322. Seeding working area; 323. Sealing working area; 324. Spraying working area; 325. Drying working area; 326. Demolding device Working area; 327. Cleaning working area; 328. Resetting working area; 33. Roller; 41. Feed box; 411. Adhesive; 412. Soil fertilizer; 413. Bacterial powder; 42. Isolation base plate; 4201. Leakage hole; 43. Lead screw; 431. Connecting sleeve; 44. First rotary motor; 45. First gear disc; 46. First toothed belt; 47. Discharge nozzle; 471. Scraper; 48. Separating roller; 481. Material trough; 49. Stirring rod; 491. Gear; 51. Second rotary motor; 52. Rack plate; 61. First support frame; 62. Hydraulic telescopic rod; 63. Pressure plate; 64. Spacing rod; 641. Pressure head; 71. Second support frame; 72. Spray head; 81. Heat insulation frame; 82. Electric heating tube; 91. Pulling rope. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] Example 1 like Figures 1-18As shown, a seed layer coating forming device includes a support frame 11 and a chain plate conveyor 21 mounted on the support frame 11. The chain plate conveyor 21 can be, but is not limited to, the chain plate conveyor involved in the patent number CN223521202U. Multiple chain plates 22 on the chain plate conveyor 21 are provided with support grooves 221. Rubber patches 23 are fixed to the chain plates 22. Shaping grooves 231 are provided on the rubber patches 23. The shaping grooves 231 are locked in the support grooves 221. The shaping grooves 231 can be supported by the provided support grooves 221. The chain conveyor 21 has a push structure installed inside via a bracket 211. The push structure includes multiple push rods 31 corresponding to multiple support grooves 221 and two guide rails 32 fixed to the bracket 211. The push rods 31 are slidably inserted into the corresponding support grooves 221, and the top of the push rods 31 passes through the support grooves 221 and is fixed to the bottom of the shaping grooves 231. The push rods 31 are located between the two guide rails 32. Two sets of rolling elements are symmetrically rotatably connected to the outer wall of the push rods 31. The rolling elements include two rollers 33. The guide rails 32 are located between the two rollers 33 on the same side, and the top and bottom of the guide rails 32 respectively roll in contact with the corresponding two rollers 33. A seed covering device 12 is placed on one side of the chain conveyor 21; Along the conveying direction of the chain conveyor 21, the top of the chain conveyor 21 is sequentially equipped with a feeding structure, a spraying structure and a shaping and drying structure. There are multiple feeding structures, and a pressing structure is set between two adjacent feeding structures. A guide rope 91 is set on the support frame 11.

[0026] Furthermore, along the conveying direction of the chain conveyor 21, the guide rail 32 is divided into eight parts in sequence: the feeding working area 321, the seeding working area 322, the capping working area 323, the spraying working area 324, the drying working area 325, the demolding working area 326, the cleaning working area 327, and the resetting working area 328. The material feeding structure is preferably configured as four structures. Along the conveying direction of the chain conveyor 21, the first three material feeding structures and the pressing structure are all located in the material feeding working area 321. The mulching device 12 is located at the mulching work area 322; Another material feeding structure is located at point 323 in the capping working area; The spray structure is located at point 324 in the spray working area; The shaping and drying structure is located at position 325 in the drying working area; The guide rails 32 in both the demolding working area 326 and the resetting working area 328 are inclined. The high end of the guide rail 32 in the demolding working area 326 is connected to the guide rail 32 in the drying working area 325, and the low end is connected to the guide rail 32 in the cleaning working area 327. The high end of the guide rail 32 in the resetting working area 328 is connected to the guide rail 32 in the cleaning working area 327, and the low end is connected to the guide rail 32 in the unloading working area 321. Rope 91 is located at position 327 in the cleaning work area.

[0027] The feeding structure includes feeding boxes 41. Specifically, during operation, along the conveying direction of the chain conveyor 21, the operator places adhesive 411, bacterial powder 413, soil fertilizer 412, and adhesive 411 in four feeding boxes 41 in sequence. One feeding box 41 containing adhesive 411, the feeding box 41 containing bacterial powder 413, and the feeding box 41 containing soil fertilizer 412, as well as the pressing structure, are all located in the feeding working area 321; while the other feeding box 41 containing adhesive 411 is located in the capped working area 323. Among them, the binder 411 is sodium carboxymethyl cellulose; the bacterial powder 413 includes, but is not limited to, rhizobia, arbuscular mycorrhizal fungi, and Trichoderma; the soil fertilizer 412 can be, but is not limited to, a mixture of soil, nitrogen fertilizer, phosphorus fertilizer and potassium fertilizer; Workflow: When the chain plate 22 moves to the unloading work area 321, the unloading box 41 containing adhesive 411, the unloading box 41 containing bacterial powder 413, and the unloading box 41 containing soil fertilizer 412 will sequentially fill the adhesive 411, bacterial powder 413, and soil fertilizer 412 into the corresponding shaping grooves 231. After the adhesive 411 is filled into the shaping groove 231, a groove for filling bacterial powder 413 can be pressed from the top of the filled adhesive 411 through the corresponding pressing structure, so that the unloading box 41 containing bacterial powder 413 can fill the bacterial powder 413 into the groove later. After the bacterial powder 413 is filled into the shaping groove 231, a groove for filling soil fertilizer 412 can be pressed from the top of the filled bacterial powder 413 through the corresponding pressing structure, so that the subsequent feeding box 41 containing soil fertilizer 412 can fill the groove with soil fertilizer 412. After the soil fertilizer 412 is filled into the shaping groove 231, a groove for placing seeds can be pressed from the top of the filled soil fertilizer 412 through the corresponding pressing structure. After pressing, the chain plate 22 will move from the feeding work area 321 to the seed covering work area 322. At this time, the seed covering device 12 can place the seeds in the corresponding slots. The seed covering device 12 can be an automated precision seed covering device provided by patent number CN118947294A, including but not limited to. After the seeds are filled, the chain plate 22 will move to the sealing working area 323. At this time, the feeding box 41 located in the sealing working area 323 will fill the top of the shaping groove 231 with adhesive 411 to seal it. At this time, the adhesive 411 located on the inner wall and top of the shaping groove 231 will wrap the soil fertilizer 412, bacterial powder 413 and seeds. After the capping is completed, the chain plate 22 will move to the spray working area 324. At this time, the spray structure located in the spray working area 324 will spray the corresponding shaping groove 231. At this time, sodium carboxymethyl cellulose will absorb water and become colloidal after it comes into contact with water. After spraying is completed, the chain plate 22 will move to the drying working area 325. The set shaping and drying structure can dry the moisture in the shaping groove 231 and at the same time dry and shape the gel-like sodium carboxymethyl cellulose. After the shaping is completed, the chain plate 22 will move to the demolding working area 326 and push the shaped sodium carboxymethyl cellulose in the shaping groove 231 out of the shaping groove 231 through the pushing structure; During the process of pushing the shaped sodium carboxymethyl cellulose out of the shaping groove 231 by the pushing structure, some sodium carboxymethyl cellulose will stick to the inner wall of the shaping groove 231. When the chain plate 22 moves to the cleaning work area 327, the set pull rope 91 can separate a small part of the sodium carboxymethyl cellulose that is stuck to the shaping groove 231. When the chain plate 22 moves to the reset working area 328, the shaping groove 231 can be reset by pushing the structure.

[0028] Furthermore, the chain plate 22 is provided with multiple support grooves 221 at equal intervals, the push structure is provided with multiple sets, and the rubber patch 23 is provided with multiple shaping grooves 231 that correspond one-to-one with the support grooves 221. The shaping grooves 231 are locked in the corresponding support grooves 221, and the outer wall of the shaping grooves 231 is in contact with the inner wall of the support grooves 221. Through the multiple shaping grooves 231, multiple seeds can be coated at the same time, thereby improving production efficiency.

[0029] Both the rubber patch 23 and the shaping groove 231 are coated with a nano anti-stick coating to prevent sodium carboxymethyl cellulose from adhering excessively to the groove wall of the shaping groove 231. Furthermore, the feeding structure includes an isolation base plate 42 and a feeding box 41 fixed to the top of the chain conveyor 21. There is a gap between the bottom of the isolation base plate 42 and the top of the chain plate 22 below it. The bottom of the isolation base plate 42 is provided with multiple material leakage holes 4201. As the chain conveyor 21 drives the chain plate 22 to move, when the chain plate 22 moves directly below the isolation base plate 42, the material leakage holes 4201 correspond one-to-one with the support grooves 221 that have moved directly below the isolation base plate 42, and the centers of the material leakage holes 4201 and the corresponding support grooves 221 are on the same straight line. The isolation base plate 42 is U-shaped, and two lead screws 43 are rotatably connected between the two side walls. The threads of the two lead screws 43 are in the same direction. The feeding box 41 is fixedly connected to the two sides of the lead screws 43 with the connecting sleeves 431. The connecting sleeves 431 are threadedly engaged with the lead screws 43 on the same side. A first rotary motor 44 is fixedly connected to the side wall of the isolation base plate 42. The first rotary motor 44 is fixedly connected to one of the lead screws 43. The ends of the two lead screws 43 away from the first rotary motor 44 extend out of the isolation base plate 42, and a first gear disk 45 is fixedly sleeved on the extended lead screws 43. The two first gear disks 45 are engaged with the same first toothed belt 46. The bottom of the feeding box 41 is fixedly connected to multiple discharge nozzles 47. The bottom of the discharge nozzles 47 slides in contact with the isolation base plate 42. The bottom of the inner wall of the discharge nozzles 47 is fixedly connected to a scraper head 471, which slides in contact with the isolation base plate 42. The inner wall of the feeding box 41 is rotatably connected to a separating roller 48. The separating roller 48 is located directly above multiple discharge nozzles 47. The inner cavity of the discharge nozzle 47 is separated from the inner cavity of the feeding box 41 by the separating roller 48. Multiple material grooves 481 are circumferentially opened on the roller body of the separating roller 48 located directly above the discharge nozzle 47. The inner wall of the feeding box 41 is also rotatably connected to a stirring rod 49. The stirring rod 49 is located above the separating roller 48. The same end of the stirring rod 49 and the separating roller 48 extends out of the feeding box 41, and gears 491 are fixedly sleeved on both the extended stirring rod 49 and the separating roller 48. The two gears 491 mesh with each other. Furthermore, a second rotary motor 51 is fixedly connected to the side of the feeding box 41 near the gear 491, and the output shaft of the second rotary motor 51 is fixedly connected to the stirring rod 49.

[0030] Specifically, when the chain plate 22 moves to the unloading work area 321, it will first pass through the unloading structure where the adhesive 411 is placed. When the chain plate 22 moves to the bottom of the isolation plate 42, the first rotary motor 44 and the second rotary motor 51 start to work. The output shaft of the first rotary motor 44 drives the corresponding lead screw 43 to rotate. Under the meshing action, the first gear disk 45 on the lead screw 43 will drive the other first gear disk 45 to rotate in the same direction through the first toothed belt 46, thereby synchronously driving the other lead screw 43 to rotate in the same direction. At this time, under the action of thread meshing, the two mating sleeves 431 will drive the unloading box 41 to move. Simultaneously, the output shaft of the second rotary motor 51 drives the separating roller 48 to rotate. During rotation, when the material trough 481 moves into the feeding box 41, the adhesive 411 in the feeding box 41 falls into the material trough 481. As the separating roller 48 rotates, the material trough 481 stops communicating with the feeding box 41 and begins communicating with the inner cavity of the discharge nozzle 47. At this time, the adhesive 411 in the material trough 481 falls into the inner cavity of the discharge nozzle 47 and contacts the top of the isolation base plate 42. When the feeding box 41 moves, it will drive the discharge nozzle 47 to move together. The adhesive 411 on the isolation base plate 42 is moved by the scraper head 471. During the movement, the adhesive 411 falls into the corresponding shaping groove 231 through the material leakage hole 4201 at the bottom of the isolation base plate 42, thereby completing the filling of the adhesive 411. After the filling is completed, the first rotary motor 44 and the second rotary motor 51 stop working. When the next filling of adhesive 411 is carried out, it is not necessary to reset the feeding box 41. The output shaft of the first rotary motor 44 only needs to rotate in the opposite direction to drive the feeding box 41 to move in the opposite direction. When the adhesive 411, bacterial powder 413 and soil fertilizer 412 are filled into the shaping groove 231, the chain conveyor 21 stops working. In this system, the gear 491 fixedly mounted on the separating roller 48 drives another gear 491 to rotate under meshing action, thereby driving the stirring rod 49 to rotate. The stirring rod 49 prevents the adhesive 411 in the feeding box 41 from clogging the top of the separating roller 48. The material trough 481 on the roller body of the separating roller 48 can intermittently discharge the adhesive 411 into the discharge nozzle 47, avoiding a large amount of adhesive 411 being discharged into the discharge nozzle 47 in a short period of time, which would cause the adhesive 411 to clog the discharge nozzle 47 and prevent it from falling normally through the leakage hole 4201 into the corresponding container. In the shaping groove 231, the operator can control the rotation speed of the lead screw 43 through the first rotary motor 44, thereby controlling the moving speed of the feeding box 41. The faster the feeding box 41 moves, the shorter the time and the less adhesive 411 is discharged from the discharge nozzle 47; the slower the feeding box 41 moves, the longer the time and the more adhesive 411 is discharged from the discharge nozzle 47. The operator can also adjust the rotation speed of the separating roller 48 by adjusting the rotation speed of the output shaft of the second rotary motor 51, thereby controlling the speed at which the adhesive 411 in the feeding box 41 is discharged into the discharge nozzle 47.

[0031] The working principle of the feeding structure containing bacterial powder 413, soil fertilizer 412 and another feeding structure containing adhesive 411 is the same as the working principle of the feeding structure containing adhesive 411 in the feeding work area 321, and will not be described in detail here. Furthermore, the pressing structure includes an inverted U-shaped first support frame 61. The bottom of the first support frame 61 is fixed to the top of the chain conveyor 21. A hydraulic telescopic rod 62 is fixed to the top of the first support frame 61. The telescopic end of the hydraulic telescopic rod 62 slides through the first support frame 61 and is fixed to a pressure plate 63 at its end. The pressure plate 63 is located above the chain plate 22. Multiple spacer rods 64 are threaded to the bottom of the pressure plate 63. As the chain conveyor 21 drives the chain plate 22 to move, when the chain plate 22 moves directly below the pressure plate 63, the spacer rods 64 correspond one-to-one with the support grooves 221 located below the pressure plate 63. A pressing head 641 is fixed to the bottom of the spacer rod 64. The pressing head 641 is in the shape of an inverted frustum, and the center of the pressing head 641 and the corresponding support groove 221 are on the same straight line.

[0032] Specifically, after the adhesive 411 is filled, the chain plate 22 will move to the pressure hole structure adjacent to the feeding structure. When the chain plate 22 moves to the bottom of the first support frame 61, the hydraulic telescopic rod 62 starts to work. The telescopic end of the hydraulic telescopic rod 62 drives the pressure plate 63 to extend downward, thereby driving the pressure head 641 to move downward through the extension rod 64. As it moves, the pressure head 641 will press into the corresponding shaping groove 231 and press out a groove from the top of the bacterial powder 413 for filling the bacterial powder 413, so that the feeding structure that subsequently places the bacterial powder 413 can fill the bacterial powder 413 into the groove.

[0033] Along the conveying direction of the chain conveyor 21, there are three pressing hole structures in the unloading working area 321. The volume of the pressing head 641 on one of the pressing plates 63 is larger than the volume of the pressing head 641 on its adjacent pressing plate 63. When the shaping groove 231 passes through these three pressing hole structures in sequence, the diameter of the groove pressed out by the pressing head 641 will gradually decrease, so as to facilitate subsequent filling. Along the conveying direction of the chain conveyor 21, there are three material feeding structures in the material feeding working area 321. The diameter of the material leakage hole 4201 on one of the isolation base plates 42 is larger than the diameter of the material leakage hole 4201 on its adjacent isolation base plates 42, so that the bacterial powder 413, soil fertilizer 412 and seeds can be filled into the corresponding slots. After filling, the adhesive 411, bacterial powder 413, soil fertilizer 412 and seeds in the shaping groove 231 are distributed in a layered structure. After the seeds are filled, the chain plate 22 will move to the sealing working area 323. At this time, the feeding box 41 located in the sealing working area 323 will fill the top of the shaping groove 231 with adhesive 411 to seal it. At this time, the adhesive 411 located on the inner wall and top of the shaping groove 231 will wrap the soil fertilizer 412, bacterial powder 413 and seeds. After the capping is completed, the chain plate 22 will move to the spray working area 324. Further, the spray structure includes an inverted U-shaped second support frame 71. The bottom of the second support frame 71 is fixed to the top of the chain plate conveyor 21. The second support frame 71 is located above the chain plate 22, and multiple spray heads 72 are fixed to the second support frame 71. The water outlets of the multiple spray heads 72 extend below the second support frame 71. As the chain plate conveyor 21 drives the chain plate 22 to move, when the chain plate 22 moves directly below the second support frame 71, the water outlets of the spray heads 72 are aligned with the water outlets of the second support frame 71. The support grooves 221 below the frame 71 correspond one-to-one. The water outlet of the spray head 72 is located directly above the corresponding support groove 221, and the water inlet is connected to the external water supply pump through a water pipe. After filling, the chain plate 22 will gradually move to the bottom of the second support frame 71. When the feeding structure in the feeding work area 321 is filling, the chain plate conveyor 21 stops working. At this time, the external water supply pump starts working and delivers water to the spray head 72. The spray head 72 sprays water into the corresponding shaping groove 231. At this time, sodium carboxymethyl cellulose absorbs water and becomes colloidal. After the material feeding structure in the feeding work area 321 is filled, the chain conveyor 21 starts working, and the external water supply pump stops working. As the chain conveyor 21 works, the chain plate 22 after spraying will move to the drying work area 325. Further, the shaping and drying structure includes a heat insulation frame 81 fixed to the top of the chain conveyor 21. There is a gap between the bottom of the heat insulation frame 81 and the top of the chain plate 22 below it. An electric heating tube 82 is fixed inside the heat insulation frame 81. The electric heating tube 82 is connected to the power supply wire of the external power supply equipment. When the chain plate 22 moves into the heat insulation frame 81, the moisture in the shaping groove 231 can be dried by the electric heating tube 82. At the same time, the colloidal sodium carboxymethyl cellulose is heated and dried to solidify it. The heat insulation frame 81 can reduce the area of ​​heat diffusion. After the colloidal sodium carboxymethyl cellulose is shaped, the bacterial powder 413, soil fertilizer 412 and seeds will be wrapped in sodium carboxymethyl cellulose for protection.

[0034] After the shaping is completed, the chain plate 22 will move to the demolding working area 326. Furthermore, the bottom of the support groove 221 is fixedly connected to the limiting sleeve 24. The push-pull rod 31 is slidably inserted into the limiting sleeve 24. The inner wall of the limiting sleeve 24 is provided with a circumferential groove 2401. The outer wall of the push-pull rod 31 is fixedly connected with a sliding protrusion 311 corresponding to the sliding groove 2401. The sliding protrusion 311 is slidably inserted into the corresponding sliding groove 2401. The sliding groove 2401 can limit the sliding protrusion 311, thereby preventing the push-pull rod 31 from rotating when it extends and retracts in the limiting sleeve 24, and also preventing the roller 33 from deflecting sideways when it rolls along the guide rail 32.

[0035] Four shafts 312 are fixed to the outer wall of the push-pull rod 31. The four shafts 312 are symmetrically distributed in pairs on the outer wall of the push-pull rod 31. The two shafts 312 on the same side are distributed vertically. Four rollers 33 are respectively rotated and sleeved on the four shafts 312. Furthermore, multiple sets of docking ears 13 are symmetrically fixed to both sides of the support frame 11. The same pull rope 91 is fixed between two symmetrically placed docking ears 13. When the groove of the shaping groove 231 faces downward, the pull rope 91 is located below the groove of the shaping groove 231. The first collection box 14 is clamped on the support frame 11. The first collection box 14 is located directly below the demolding work area 326 and the multiple pull ropes 91; As the chain plate 22 moves along the demolding working area 326, the roller 33 gradually moves from the high end of the guide rail 32 located in the demolding working area 326 to the low end. During the movement, the support groove 221 gradually approaches the roller 33, and the push rod 31 gradually pushes the bottom of the shaping groove 231 outward. At this time, the groove wall of the concave shaping groove 231 gradually flips outward and separates from the shaped sodium carboxymethyl cellulose. When the roller 33 moves to the low end, the concave shaping groove 231 changes to an outward convex state, and the shaped sodium carboxymethyl cellulose separates from the outward convex shaping groove 231 and falls into the first collection box 14 for collection, thereby completing the demolding.

[0036] The rubber patch 23 and the shaping groove 231 not only provide a coating space for seed coating, but also separate the push-pull rod 31 from sodium carboxymethyl cellulose, preventing sodium carboxymethyl cellulose from leaking between the push-pull rod 31 and the limiting sleeve 24 and affecting the sliding of the push-pull rod 31.

[0037] The support groove 221 is provided with multiple pressure-stabilizing through holes 2201. The pressure-stabilizing through holes 2201 can prevent the gap between the support groove 221 and the shaping groove 231 from becoming larger when the push-pull rod 31 pushes the shaping groove 231 outward. At this time, the outside air will flow into the space between the support groove 221 and the shaping groove 231 through the pressure-stabilizing through holes 2201, thus avoiding the situation where the push-pull rod 31 is unable to push the shaping groove 231 due to the formation of negative pressure in the gap. Multiple sets of docking ears 13 are located on the side of the cleaning working area 327 close to the demolding working area 326; During the demolding process, a small portion of the shaped sodium carboxymethyl cellulose will adhere to the bottom of the convex shaping groove 231 and move with the chain plate 22. After the demolding is completed, the chain plate 22 will move to the cleaning work area 327, and the corresponding roller 33 will also move to the guide rail 32 located in the cleaning work area 327. During the movement, the set pull rope 91 can block the shaped sodium carboxymethyl cellulose that moves with the chain plate 22, thereby pushing the shaped sodium carboxymethyl cellulose to separate from the corresponding shaping groove 231 and fall into the first collection box 14 for collection.

[0038] A U-shaped card holder 15 is fixedly connected to the support frame 11. At least two rotating rollers 16 are rotatably connected to the card holder 15. Multiple sets of brush bristles 161 are fixedly connected to the rotating rollers 16 in a circular pattern. When the groove opening of the shaping groove 231 faces downward, the brush bristles 161 are located below the groove opening of the shaping groove 231. The same end of the multiple rotating rollers 16 extends out of the card holder 15, and a second gear disk 17 is fixedly sleeved on the extended rotating rollers 16. The two second gear disks 17 mesh with the same second toothed belt 18. A third rotary motor 151 is fixedly connected to the side of the card holder 15 away from the second gear disk 17, and the output shaft of the third rotary motor 151 is fixedly connected to one of the rotating rollers 16. A second collection box 19 is held on the card holder 15. The second collection box 19 is located directly below the rotating roller 16 and is located on the side of the cleaning working area 327 away from the demolding working area 326.

[0039] As the chain plate 22 moves, the output shaft of the third rotary motor 151 drives the corresponding rotating roller 16 to rotate. The second gear disk 17 fixedly sleeved on the rotating roller 16 drives another second gear disk 17 to rotate under the action of the second toothed belt 18, thereby causing the other rotating roller 16 to rotate. When the rotating roller 16 rotates, the surface of the convex shaping groove 231 can be cleaned by the brush bristles 161, and a small part of the sodium carboxymethyl cellulose solid adhering to the surface of the shaping groove 231 is cleaned into the second collection box 19.

[0040] When the chain plate 22 moves from the cleaning work area 327 to the reset work area 328, the roller 33 will gradually move from the high end of the guide rail 32 located in the reset work area 328 to the low end. During the movement, the support groove 221 will gradually move away from the roller 33, and the push-pull rod 31 will gradually pull the bottom of the shaping groove 231 inward. At this time, the shaping groove 231, which is in an outward convex state, will gradually flip inward. When the roller 33 moves to the low end, the shaping groove 231 is reset and waits for the next work cycle.

[0041] Example 2 like Figures 1-18 As shown, this embodiment is an improvement on the first embodiment as follows: Furthermore, the operator can omit the second rotary motor 51 from one side of the feeding box 41, and instead fix a rack plate 52 between the two side walls of the isolation base plate 42. The rack plate 52 meshes with one of the gears 491. When the feeding box 41 moves, the rack plate 52 will drive the corresponding gear 491 to rotate under the meshing action. This gear 491, under the meshing action, will drive the other gear 491 to rotate, thereby causing the separating roller 48 and the stirring rod 49 to rotate. Compared to directly using the second rotary motor 51, which drives the separating roller 48 and the stirring rod 49 to rotate under the action of the rack plate 52, thus reducing energy consumption, the rotation speed of the separating roller 48 and the stirring rod 49 is determined by the moving speed of the feeding box 41, and the rotation speed of the separating roller 48 cannot be individually controlled. However, using the second rotary motor 51 can individually control the rotation speed of the separating roller 48, thereby individually controlling the speed at which the adhesive 411 in the feeding box 41 is discharged into the discharge nozzle 47, but the power consumption will increase. Operators can choose the appropriate motor based on actual needs.

[0042] Example 3 like Figures 1-18 As shown, this embodiment has been improved based on embodiment one as follows: the workers can interchange the placement order of the feeding boxes 41 containing bacterial powder 413 and soil fertilizer 412 according to actual needs; other types of fertilizers, bacterial powder and plant hormone powder can also be placed in these two feeding boxes 41; the workers can also install more feeding structures and pressing structures in the feeding work area 321, so as to fill the various nutrients required for seed growth into the shaping groove 231 layer by layer, so as to achieve the layered slow release of nutrients.

[0043] However, as is well known to those skilled in the art, the working principles and wiring methods of the chain conveyor 21, the first rotary motor 44, the second rotary motor 51, the third rotary motor 151, and the electric heating tube 82 are commonplace and belong to conventional means or common knowledge. Therefore, they will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0044] The different embodiments described above can be combined, substituted, or used in combination with each other.

[0045] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0046] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A seed layer-coating forming apparatus comprising a support frame (11) and a chain conveyor (21) installed on the support frame (11), characterized in that: A plurality of chain plates (22) on the chain plate conveyor (21) are each provided with a supporting groove (221), and the chain plate (22) is fixedly connected with a rubber patch (23), and the rubber patch (23) is provided with a shaping groove (231), and the shaping groove (231) is clamped in the supporting groove (221); The inside of the chain plate conveyor (21) is provided with a pushing structure through a support (211), the pushing structure comprises a plurality of push-pull rods (31) corresponding to the plurality of supporting grooves (221) and two guide rails (32) fixedly connected to the support (211), the push-pull rod (31) is slidingly inserted into the corresponding supporting groove (221), and the top of the push-pull rod (31) penetrates the supporting groove (221) and is fixedly connected with the bottom of the shaping groove (231), the push-pull rod (31) is located between the two guide rails (32), and the outer wall of the push-pull rod (31) is symmetrically connected with two groups of rolling elements, the rolling elements comprise two rollers (33), the guide rail (32) is located between the two rollers (33) on the same side, and the top and the bottom of the guide rail (32) are respectively in rolling contact with the two rollers (33); A seed covering device (12) is placed on one side of the chain plate conveyor (21); Along the conveying direction of the chain plate conveyor (21), the top of the chain plate conveyor (21) is sequentially provided with a discharging structure, a spraying structure and a shaping and drying structure, wherein the discharging structure is provided with a plurality of discharging structures, and a pressing hole structure is arranged between adjacent two discharging structures, and a supporting rack (11) is provided with a rope (91).

2. The seed layer-by-layer coating forming apparatus according to claim 1, characterized in that: Along the conveying direction of the chain plate conveyor (21), the guide rail (32) is sequentially divided into eight parts, namely a discharging working area (321), a seed covering working area (322), a sealing working area (323), a spraying working area (324), a drying working area (325), a demolding working area (326), a cleaning working area (327) and a resetting working area (328); The discharging structure is provided with four discharging structures, and along the conveying direction of the chain plate conveyor (21), the front three discharging structures and the pressing hole structure are located at the discharging working area (321); The seed covering device (12) is located at the seed covering working area (322); Another discharging structure is located at the sealing working area (323); The spraying structure is located at the spraying working area (324); The shaping and drying structure is located at the drying working area (325); The guide rails (32) at the demolding working area (326) and the resetting working area (328) are both in an inclined shape, and the high end of the guide rail (32) at the demolding working area (326) is in communication with the guide rail (32) at the drying working area (325), and the low end is in communication with the guide rail (32) at the cleaning working area (327); the high end of the guide rail (32) at the resetting working area (328) is in communication with the guide rail (32) at the cleaning working area (327), and the low end is in communication with the guide rail (32) at the discharging working area (321); The rope (91) is located at the cleaning working area (327).

3. The seed layer-by-layer coating forming apparatus according to claim 2, characterized in that: A plurality of support grooves (221) are equidistantly arranged on the chain plate (22), the pushing structure is provided with a plurality of groups, a plurality of shaped grooves (231) corresponding to the support grooves (221) are arranged on the rubber patch (23), the shaped grooves (231) are clamped in the corresponding support grooves (221), and the outer wall of the shaped grooves (231) is attached to the inner wall of the support grooves (221); The surfaces of the rubber patch (23) and the shaped grooves (231) are sprayed with a nano anti-sticking coating; A limiting sleeve (24) is fixedly connected to the bottom of the support groove (221), the push-pull rod (31) is slidingly inserted into the limiting sleeve (24), the inner wall of the limiting sleeve (24) is circumferentially provided with a sliding groove (2401), the outer wall of the push-pull rod (31) is fixedly connected with a sliding convex (311) corresponding to the sliding groove (2401), and the sliding convex (311) is slidingly inserted into the corresponding sliding groove (2401); The outer wall of the push-pull rod (31) is fixedly connected with four shaft rods (312), the four shaft rods (312) are symmetrically arranged on the outer wall of the push-pull rod (31) in pairs, the two shaft rods (312) on the same side are arranged in an up-down manner, and four rollers (33) are rotatably arranged on the four shaft rods (312) respectively. A plurality of pressure stabilizing through holes (2201) are arranged on the support groove (221).

4. The seed layered coating formation apparatus of claim 3, wherein: The blanking structure comprises an isolation bottom plate (42) and a blanking box (41) fixedly connected to the top of the chain plate conveyor (21), a gap is left between the bottom of the isolation bottom plate (42) and the top of the chain plate (22) below the isolation bottom plate (42), a plurality of material leakage holes (4201) are arranged on the bottom of the isolation bottom plate (42), as the chain plate conveyor (21) drives the chain plate (22) to move, when the chain plate (22) moves directly below the isolation bottom plate (42), the material leakage holes (4201) correspond to the support grooves (221) moving directly below the isolation bottom plate (42) one by one, and the center of the material leakage hole (4201) and the corresponding support groove (221) are located on the same straight line; The isolation bottom plate (42) is in a U shape, two lead screws (43) are rotatably connected between the two side walls, the two lead screws (43) have the same screw thread direction, the blanking box (41) is fixedly connected with a butt sleeve (431) on the two sides close to the lead screws (43), the butt sleeve (431) is threadedly engaged with the lead screw (43) on the same side, a first rotary motor (44) is fixedly connected to the side wall of the isolation bottom plate (42), the first rotary motor (44) is fixedly connected with one of the lead screws (43), the other ends of the two lead screws (43) extending out of the isolation bottom plate (42), and a first gear disc (45) is fixedly arranged on each of the lead screws (43) extending out of the isolation bottom plate (42), and the two first gear discs (45) are engaged with a same first toothed belt (46); A plurality of discharge nozzles (47) are fixedly connected to the bottom of the blanking box (41), the bottom of the discharge nozzle (47) is in sliding contact with the isolation bottom plate (42), and a scraping head (471) is fixedly connected to the inner wall of the bottom of the discharge nozzle (47), and the scraping head (471) is in sliding contact with the isolation bottom plate (42). The inner wall of the discharging box (41) is rotationally connected with a partition roller (48), the partition roller (48) is located directly above a plurality of discharge nozzles (47), the inner cavity of the discharge nozzle (47) is separated from the inner cavity of the discharging box (41) through the partition roller (48), and a plurality of troughs (481) are circumferentially formed in the roller body of the partition roller (48) located directly above the discharge nozzle (47); The inner wall of the discharging box (41) is also rotationally connected with a stirring rod (49), the stirring rod (49) is located above the partition roller (48), the stirring rod (49) and the partition roller (48) extend out of the discharging box (41) at the same end, and the stirring rod (49) and the partition roller (48) are both fixedly provided with a gear (491), and the two gears (491) are meshed. Along the conveying direction of the chain plate conveyor (21), three discharging structures are located in the discharging working area (321), and the hole diameter of the leakage hole (4201) on one isolation bottom plate (42) is greater than that of the leakage hole (4201) on the adjacent isolation bottom plate (42).

5. The seed layer-by-layer coating forming apparatus according to claim 4, characterized in that: The side of the discharging box (41) close to the gear (491) is fixedly connected with a second rotary motor (51), and the output shaft of the second rotary motor (51) is fixedly connected with the stirring rod (49).

6. The seed layered coater forming apparatus of claim 4, wherein: The two side walls of the isolation bottom plate (42) are fixedly connected with a rack plate (52), and the rack plate (52) is meshed with one of the gears (491).

7. The seed layered coater forming apparatus of claim 4, wherein: The hole pressing structure comprises a first support frame (61) in the shape of an inverted U, the bottom of the first support frame (61) is fixedly connected to the top of the chain plate conveyor (21), the top of the first support frame (61) is fixedly connected with a hydraulic telescopic rod (62), the telescopic end of the hydraulic telescopic rod (62) slidably penetrates the first support frame (61), and the end is fixedly connected with a pressing plate (63), the pressing plate (63) is located above the chain plate (22), the bottom of the pressing plate (63) is threadedly connected with a plurality of distance increasing rods (64), as the chain plate conveyor (21) moves the chain plate (22), when the chain plate (22) moves directly below the pressing plate (63), the distance increasing rods (64) correspond one by one to the support grooves (221) located below the pressing plate (63), the bottom of the distance increasing rod (64) is fixedly connected with a pressing head (641), the pressing head (641) is in the shape of an inverted circular table, and the center of the pressing head (641) and the corresponding support groove (221) are located on the same straight line; Along the conveying direction of the chain plate conveyor (21), three hole pressing structures are located in the discharging working area (321), and the volume of the pressing head (641) on one pressing plate (63) is greater than that of the pressing head (641) on the adjacent pressing plate (63).

8. The seed layered coating formation apparatus of claim 7, wherein: The spraying structure comprises a second support frame (71) in an inverted U shape, the bottom of the second support frame (71) is fixedly connected to the top of the chain plate conveyor (21), the second support frame (71) is located above the chain plate (22), a plurality of spray heads (72) are fixedly connected to the second support frame (71), the water outlet ends of the plurality of spray heads (72) extend below the second support frame (71), when the chain plate conveyor (21) drives the chain plate (22) to move, when the chain plate (22) moves directly below the second support frame (71), the water outlet ends of the spray heads (72) correspond to the support grooves (221) located below the second support frame (71) one by one, the water outlet ends of the spray heads (72) are located directly above the corresponding support grooves (221), and the water inlet ends of the spray heads (72) are connected in communication with an external water supply pump through a water pipe.

9. The seed layered coating formation apparatus of claim 8, wherein: The shaping and drying structure comprises a heat insulation frame (81) fixedly connected to the top of the chain plate conveyor (21), a gap is formed between the bottom of the heat insulation frame (81) and the top of the chain plate (22) below the heat insulation frame (81), and an electric heating pipe (82) is fixedly connected to the inside of the heat insulation frame (81) and connected in electric connection with an external power supply device.

10. The seed layered coating formation apparatus of claim 9, wherein: A plurality of groups of butt ears (13) are symmetrically fixed to the two sides of the support rack (11), one same pull rope (91) is fixedly connected between the two butt ears (13) arranged symmetrically, and the pull rope (91) is located below the slot opening of the shaping groove (231) when the slot opening of the shaping groove (231) faces downward. The first collecting box (14) is clamped on the support rack (11) and located directly below the demolding working area (326) and the plurality of pull ropes (91). The plurality of groups of butt ears (13) are located on one side of the cleaning working area (327) close to the demolding working area (326). The U-shaped clamping seat (15) is fixedly connected to the support rack (11), at least two rotating rollers (16) are rotatably connected to the clamping seat (15), a plurality of groups of brush hairs (161) are fixedly connected to the rotating rollers (16) in a circumferential manner, and the brush hairs (161) are located below the slot opening of the shaping groove (231) when the slot opening of the shaping groove (231) faces downward. The same ends of the plurality of rotating rollers (16) extend out of the clamping seat (15), and the rotating rollers (16) extending out are fixedly sleeved with second gear plates (17). The third rotary motor (151) is fixedly connected to one side of the clamping seat (15) away from the second gear plates (17), and the output shaft of the third rotary motor (151) is fixedly connected with one of the rotating rollers (16). The second collecting box (19) is clamped on the clamping seat (15) and located directly below the rotating rollers (16), and the second collecting box (19) is located on one side of the cleaning working area (327) away from the demolding working area (326).

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