A finished product screening device for producing amino acid organic fertilizer

Abstract

The present invention relates to the field of fertilizer screening technology, and specifically to a screening device for producing finished amino acid organic fertilizers, including a fixed structure, a driving mechanism and a pushing cylinder are arranged on the fixed structure, a fixed frame is fixedly installed on the driving mechanism, an inner screen cylinder is fixedly installed on the fixed frame, a slide groove is provided on the fixed frame, a sliding frame is arranged on one side of the fixed frame, the sliding frame is slidably connected with the slide groove, and a blocking structure is fixedly arranged on the outer side of the sliding frame. The present invention designs an inner screen cylinder and a blocking structure, and the inner screen cylinder and the blocking structure are driven to rotate by the driving mechanism, so that the material passing through the inner screen cylinder falls onto the baffle, and the material leaves the baffle through the discharge port under the action of gravity, and is blocked by the baffle, so that the material whose length is greater than the aperture diameter is stuck between the inner screen cylinder and the baffle, and when the baffle rotates to a specified angle, the material re-enters the inner screen cylinder for screening under the action of gravity, thereby improving the screening accuracy.

Description

Technical Field

[0001] The invention relates to the technical field of fertilizer screening, in particular to a screening device for producing finished amino acid organic fertilizer products. Background Art

[0002] Amino acid organic fertilizer is a compound biological fertilizer containing a large amount of trace elements. It is composed of a variety of plant production regulators and microorganisms and has high nutritional value for crop cultivation.

[0003] Since the sizes of organic fertilizer finished products are often different, in order to make them uniform in appearance when they are sold, it is often necessary to screen the organic fertilizer finished products, and screen the organic fertilizer particles of different sizes into the same size before selling them. The organic fertilizer finished products often have a cylindrical particle structure, and there are large differences in their length and radius length. In the prior art, the screening of organic fertilizer finished products is often carried out by a rolling screen drum. When targeting some organic fertilizer particles with the same radius but different lengths, there is often a situation where the organic fertilizer particles vertically pass through the smaller sieve holes, so that the longer organic fertilizer particles are mixed into the smaller-sized organic fertilizer finished products, affecting the uniform size of the organic fertilizer finished products when they are sold, and the screening accuracy is not high. At the same time, when the amount of organic fertilizer finished products is large, due to the obstruction between the materials, some fertilizers may not be completely screened, and the completion degree is not high. Summary of the invention

[0004] The purpose of the present invention is to solve the problems in the background technology and to provide a screening device for producing amino acid organic fertilizer products.

[0005] In order to achieve the above object, the present invention adopts the following technical scheme: a screening device for producing amino acid organic fertilizer finished products, comprising a fixed structure, the fixed structure consisting of a No. 1 fixed platform and a No. 2 fixed platform, a driving mechanism is arranged on the side of the No. 1 fixed platform close to the No. 2 fixed platform, and a pushing cylinder is fixedly installed on the No. 2 fixed platform;

[0006] The driving mechanism consists of a driving motor and a rotating shaft of a circular tubular structure. The driving motor is fixedly mounted on a fixed platform No. 1, and the output shaft of the driving motor is inserted in the rotating shaft. A pushing plate is fixedly mounted on the telescopic end of the pushing cylinder, and a side of the pushing plate away from the pushing cylinder is rotatably connected to the rotating plate, and an inserting shaft is fixedly mounted on the side of the rotating plate away from the pushing plate, and the inserting shaft is inserted into the rotating shaft. A plurality of evenly distributed fixed frames are fixedly mounted on the outer wall of the rotating shaft and at both ends thereof, an inner sieve cylinder is fixedly mounted between the two fixed frames, and a No. 1 sieve hole, a No. 2 sieve hole and a No. 3 sieve hole are provided on the inner sieve cylinder, and the No. 1 sieve hole, the No. 2 sieve hole and the No. 3 sieve hole are flush, a sliding groove is provided on the fixed frame, and an L-shaped sliding frame is provided outside the fixed frame and on one side of the sliding groove, the sliding frame is slidably connected to the sliding groove, and a blocking structure is fixedly arranged on the outer side of the sliding frame.

[0007] In the above-mentioned screening device for producing finished amino acid organic fertilizer products, the blocking structure is composed of a number of evenly distributed arc-shaped baffles and a number of elastic bands, the baffles are fixedly mounted on the sliding frame, the baffles and the elastic bands are alternately arranged, and the two sides of the elastic bands are respectively fixedly mounted on the baffles on the adjacent two sides, and the baffles are provided with arc-shaped discharge ports, and the discharge ports and the No. 3 sieve holes are alternately arranged.

[0008] In the above-mentioned screening device for producing finished amino acid organic fertilizer products, two symmetrically arranged sliding grooves are provided on the outer wall of the rotating shaft, the sliding grooves penetrate the inner surface of the rotating shaft, a first push plate with a circular structure is sleeved on the outer side of the rotating shaft, the first push plate is fixedly connected to the insertion rod through the sliding groove, the first push plate is in contact with the inner wall of the inner screen cylinder, a number of evenly distributed rotating rods are rotatably connected to the first push plate, a second push plate with a circular structure is sleeved in the inner screen cylinder and located on the outer side of the rotating shaft, one end of the rotating rod away from the first push plate is rotatably connected to the second push plate, the second push plate is in contact with the inner wall of the inner screen cylinder, and a feeding mechanism is provided in the inner screen cylinder.

[0009] In the above-mentioned device for screening finished amino acid organic fertilizer products, the feeding mechanism consists of a material guide pipe and a storage unit, a feeding port is provided on the second push plate, the material guide pipe is fixedly mounted on the side of the second push plate away from the first push plate, the side of the material guide pipe away from the second push plate is sealed, an opening is provided on the top of the material guide pipe, the storage unit is fixedly mounted on the top of the No. 1 fixed platform, a material discharge port is provided on the material storage unit, a sealing block is inserted in the material storage unit, and a reset mechanism is provided in the material storage unit.

[0010] In the above-mentioned device for screening finished amino acid organic fertilizer products, a plurality of evenly distributed expansion rods are fixedly installed on the sides of the first push plate and the second push plate that are away from each other, and the expansion rods correspond to the fixed frames one by one. The fixed frames are provided with support grooves, and the expansion rods penetrate the support grooves on the corresponding fixed frames, and expansion slots are provided on the expansion rods. A sliding rod is fixedly installed on the side of the sliding frame close to the rotating shaft, and the sliding rod penetrates the expansion slot, and three evenly distributed make way slots are provided on the No. 1 fixed platform.

[0011] In the above-mentioned device for screening finished amino acid organic fertilizer products, a transmission circular tube is fixedly installed on the side of the push plate close to the inner screen cylinder, a transmission tooth groove is opened on the inner wall of the transmission circular tube, a rotating rod extends into the transmission circular tube on the side away from the second push plate and is fixedly installed with a transmission gear, the transmission gear is meshed with the transmission tooth groove, and a uniformly distributed stirring frame is fixedly installed on the rotating rod.

[0012] In the above-mentioned device for screening finished amino acid organic fertilizer products, a No. 3 fixed platform is fixedly arranged between the No. 1 fixed platform and the No. 2 fixed platform, a material collecting unit is fixedly installed on the side of the push plate close to the No. 1 fixed platform, the bottom of the material collecting unit is slidably connected to the No. 3 fixed platform, and arc-shaped through grooves are provided on the baffles, which are connected to the discharge port, and a plurality of sealing plates are fixedly installed on the outer wall of the inner screen cylinder, the sealing plates correspond to the through grooves one by one, and the sealing plates pass through the correspondingly arranged through grooves.

[0013] In the above-mentioned device for screening finished amino acid organic fertilizer products, a sliding sleeve is sleeved between the first push plate and the second push plate and located on the outside of the rotating shaft.

[0014] Compared with the existing technology, the advantages of the present invention are: 1. The present invention designs an inner screen drum and a blocking structure, which are driven by a driving mechanism to rotate the inner screen drum and the blocking structure, so that the material passing through the inner screen drum falls onto the baffle, and the material leaves the baffle through the discharge port under the action of gravity. Under the blocking action of the baffle, the material whose length is greater than the aperture diameter is stuck between the inner screen drum and the baffle. When the baffle rotates to a specified angle, the material re-enters the inner screen drum for screening under the action of gravity, thereby improving the screening accuracy.

[0015] 2. The present invention designs a fixed frame, a sliding frame, an expansion rod and a sliding rod, and drives the expansion rod to move by pushing the cylinder, and cooperates with the sliding rod to move in the expansion slot, so that the first push plate and the second push plate move to the specified aperture and drive the blocking structure to expand and contract accordingly, so that the distance between the blocking plate and the inner screen cylinder is adapted to the aperture size.

[0016] 3. The present invention designs a feeding mechanism, a first push plate and a second push plate, and drives the first push plate and the second push plate to move a specified distance by pushing the cylinder, and pushes open the sealing block through the material guide pipe, so that the material passes through the opening and enters between the first push plate and the second push plate. At this time, the material is confined between the first push plate and the second push plate, and cooperates with the inner screen cylinder and the blocking structure to fully screen the material in the screen holes of the specified aperture, thereby improving the completion of the screening. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the present invention.

[0018] Figure 2 It is a cross-sectional structural schematic diagram of the present invention.

[0019] Figure 3 The present invention Figure 2 Schematic diagram of the local enlarged structure at point A in the middle.

[0020] Figure 4 The present invention Figure 2 Schematic diagram of the local enlarged structure at point B in the middle.

[0021] Figure 5 The present invention Figure 2 Schematic diagram of the local enlarged structure at point C in the middle.

[0022] Figure 6 It is a three-dimensional structural schematic diagram of the fixed frame and the sliding frame of the present invention.

[0023] Figure 7 It is a three-dimensional structural schematic diagram of the slide groove and the support groove of the present invention.

[0024] Figure 8 It is a three-dimensional structural schematic diagram of the stirring frame and the rotating rod of the present invention.

[0025] Fig. 9 It is a three-dimensional structural schematic diagram of the transmission tooth groove and the transmission gear of the present invention.

[0026] Fig.10 It is a three-dimensional structural schematic diagram of the first push plate and the second push plate of the present invention.

[0027] In the figure: 1, fixed platform No. 1; 2, fixed platform No. 2; 3, push cylinder; 4, drive motor; 5, rotating shaft; 31, push plate; 32, rotating plate; 33, plug shaft; 34, fixed frame; 6, inner screen cylinder; 61, screen hole No. 1; 62, screen hole No. 2; 63, screen hole No. 3; 341, slide groove; 64, sliding frame; 7, baffle; 8, elastic belt; 71, unloading port; 51, sliding groove; 9, first push plate; 10, rotating rod; 11, second push plate ; 12. material guide pipe; 13. material storage unit; 131. material outlet; 132. reset mechanism; 133. sealing block; 121. opening; 14. expansion rod; 342. support groove; 141. expansion notch; 15. sliding rod; 16. clearance groove; 17. transmission round tube; 171. transmission tooth groove; 18. transmission gear; 19. stirring frame; 20. No. 3 fixed platform; 21. material collection unit; 22. through groove; 23. sealing plate; 24. sliding sleeve. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0029] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0030] Reference Figure 1-Figure 10 A screening device for producing finished amino acid organic fertilizers comprises a fixed structure, the fixed structure is composed of a No. 1 fixed platform 1 and a No. 2 fixed platform 2, a driving mechanism is arranged on the side of the No. 1 fixed platform 1 close to the No. 2 fixed platform 2, a pushing cylinder 3 is fixedly installed on the No. 2 fixed platform 2, the driving mechanism is composed of a driving motor 4 and a rotating shaft 5 of a tubular structure, the driving motor 4 is fixedly installed on the No. 1 fixed platform 1, the output shaft of the driving motor 4 is inserted in the rotating shaft 5, a pushing disk 31 is fixedly installed at the telescopic end of the pushing cylinder 3, a rotating disk 32 is rotatably connected to the side of the pushing disk 31 away from the pushing cylinder 3, an inserting shaft 33 is fixedly installed on the side of the rotating disk 32 away from the pushing disk 31, the inserting shaft 33 is inserted into the rotating shaft 5, a plurality of evenly distributed fixed frames 34 are fixedly installed on the outer wall of the rotating shaft 5 and at both ends thereof, an inner screen cylinder 6 is fixedly installed between the two fixed frames 34, and a No. 1 screen hole 61, a No. 2 screen hole 62 and a No. 3 screen hole are provided on the inner screen cylinder 6 63, the first sieve hole 61, the second sieve hole 62 and the third sieve hole 63 are flush, and a slide groove 341 is provided on the fixed frame 34, and a sliding frame 64 of an L-shaped structure is provided outside the fixed frame 34 and on one side of the slide groove 341, and the sliding frame 64 is slidably connected to the slide groove 341, and a blocking structure is fixedly provided on the outer side of the sliding frame 64, and the inner sieve drum 6 is driven to rotate by the driving mechanism, and the inner sieve drum 6 drives the blocking structure to rotate through the fixed frame 34 and the sliding frame 64, and the fertilizers adapted to the apertures of the first sieve hole 61, the second sieve hole 62 and the third sieve hole 63 are respectively screened out through the rotation of the inner sieve drum 6, and when the longer fertilizer product passes through the small aperture vertically, the fertilizer particles are stuck between the inner sieve drum 6 and the blocking structure through the blocking effect of the blocking structure, and when the inner sieve drum 6 and the blocking structure rotate at a specified angle, the material re-enters the inner sieve drum 6 under the action of gravity, so as to avoid the longer fertilizer from being screened out through the sieve holes with small apertures, thereby improving the screening accuracy.

[0031] The blocking structure is composed of a number of evenly distributed baffles 7 with arc-shaped structures and a number of elastic bands 8. The baffles 7 are fixedly mounted on the sliding frame 64. The baffles 7 and the elastic bands 8 are alternately arranged. The two sides of the elastic bands 8 are respectively fixedly mounted on the baffles 7 on the adjacent two sides. The baffles 7 are provided with discharge ports 71 with arc-shaped structures. The discharge ports 71 are alternately arranged with the No. 3 sieve holes 63. The baffles 7 are used to block fertilizer particles that do not meet the aperture of the specified position. The elastic bands 8 are used to connect adjacent baffles 7. When the fertilizer passes through the screening of the inner screen drum 6 and falls onto the screening mechanism, the material leaves the blocking structure through the discharge port 71 under the action of gravity.

[0032] Two symmetrically arranged sliding grooves 51 are provided on the outer wall of the rotating shaft 5, and the sliding grooves 51 penetrate the inner surface of the rotating shaft 5. A first push plate 9 with a circular structure is sleeved on the outer side of the rotating shaft 5. The first push plate 9 is fixedly connected to the insertion rod through the sliding grooves 51. The first push plate 9 abuts against the inner wall of the inner screen drum 6. A plurality of evenly distributed rotating rods 10 are rotatably connected to the first push plate 9. A second push plate 11 with a circular structure is sleeved inside the inner screen drum 6 and located on the outer side of the rotating shaft 5. The end of the rotating rod 10 away from the first push plate 9 is rotatably connected to the second push plate 11. The second push plate 11 It contacts the inner wall of the inner sieve cylinder 6, and a feeding mechanism is arranged in the inner sieve cylinder 6. The plug shaft 33 is driven to move by pushing the cylinder 3, and the first push plate 9 and the second push plate 11 are driven to move by the plug shaft 33. When the two push plates move a specified distance, the fertilizer enters between the first push plate 9 and the second push plate 11 through the feeding mechanism. At this time, the fertilizer particles are confined between the first push plate 9 and the second push plate 11. When the positions of the first push plate 9 and the second push plate 11 correspond to the No. 1 sieve hole 61, the fertilizer particles can be further accurately screened, so that the size of the fertilizer particles after screening is more uniform.

[0033] The feeding mechanism consists of a guide pipe 12 and a storage unit 13. A feeding port is provided on the second push plate 11. The guide pipe 12 is fixedly mounted on a side of the second push plate 11 away from the first push plate 9. The side of the guide pipe 12 away from the second push plate 11 is sealed. An opening 121 is provided on the top of the guide pipe 12. The storage unit 13 is fixedly mounted on the top of the No. 1 fixed platform 1. A discharge port 131 is provided on the storage unit 13. A sealing block 133 is inserted in the storage unit 13. A reset mechanism 132 is provided in the storage unit 13. The guide pipe 12 contacts the sealing block 133, so that the storage unit 13 is connected to the guide pipe 12. Under the action of gravity, the material passes through the opening 121 and enters between the first push plate 9 and the second push plate 11. When the pushing cylinder 3 pulls the guide pipe 12 away from the storage unit 13, the storage unit 13 is closed again under the action of the reset mechanism 132, so as to realize quantitative feeding and quantitative unloading and improve the screening accuracy of fertilizer particles.

[0034] A plurality of evenly distributed expansion rods 14 are fixedly installed on the side away from each other of the first push plate 9 and the second push plate 11, and the expansion rods 14 correspond to the fixed frames 34 one by one. The fixed frames 34 are provided with support grooves 342, and the expansion rods 14 penetrate the support grooves 342 on the corresponding fixed frames 34. The expansion rods 14 are provided with expansion slots 141. A sliding rod 15 is fixedly installed on the side of the sliding frame 64 close to the rotating shaft 5, and the sliding rod 15 penetrates the expansion slot 141. Three evenly distributed make way slots 16 are provided on the No. 1 fixed platform 1. The expansion rods 14 are driven to move forward by pushing the cylinder 3, and the sliding rods 15 are cooperated to make the baffles 7 contract with each other. At this time, the distance between the baffle 7 and the inner screen drum 6 is reduced, which is convenient for screening out smaller fertilizer particles. When the distance between the baffle 7 and the inner screen drum 6 is increased to the maximum, it is convenient to complete the screening of all fertilizers at the end.

[0035] A transmission circular tube 17 is fixedly installed on one side of the push plate 31 close to the inner screen cylinder 6, and a transmission tooth groove 171 is opened on the inner wall of the transmission circular tube 17. The side of the rotating rod 10 away from the second push plate 11 extends into the transmission circular tube 17 and is fixedly installed with a transmission gear 18, which meshes with the transmission tooth groove 171. A uniformly distributed stirring frame 19 is fixedly installed on the rotating rod 10, and the rotating rod 10 is driven to rotate around the rotating shaft 5 by a driving mechanism. At this time, the transmission gear 18 and the transmission tooth groove 171 produce relative motion, and the rotating rod 10 is driven to rotate by the transmission gear 18, thereby rotating the stirring frame 19. The fertilizer particles are broken up by the rotation of the stirring frame 19, thereby avoiding the occurrence of mutual adhesion between the fertilizer particles and improving the screening efficiency.

[0036] A fixed platform No. 3 20 is fixedly arranged between the fixed platform No. 1 1 and the fixed platform No. 2 2, and a collecting unit 21 is fixedly installed on the side of the pushing plate 31 close to the fixed platform No. 1 1. The bottom of the collecting unit 21 is slidably connected to the fixed platform No. 3 20. The baffle plates 7 are provided with arc-shaped through grooves 22, which are connected with the discharge port 71. A plurality of sealing plates 23 are fixedly installed on the outer wall of the inner screen cylinder 6, and the sealing plates 23 correspond to the through grooves 22 one by one. The sealing plates 23 pass through the corresponding through grooves 22, and the collecting unit 21 is driven to move by pushing the cylinder 3, so that the fertilizer particles screened by the specified sieve holes pass through the discharge port 71 and fall into the specified material trough. The sealing plate 23 is used to seal the gap between the blocking structure and the inner screen cylinder 6 to prevent the fertilizer particles from leaking out.

[0037] A sliding sleeve 24 is sleeved between the first push plate 9 and the second push plate 11 and located outside the rotating shaft 5 . The sliding sleeve 24 is driven by the first push plate 9 and the second push plate 11 to move accordingly to prevent fertilizer from entering the rotating shaft 5 .

[0038] The specific working principle and use method of the present invention are explained in detail below: when in use, the default initial state is the state of a single screening end, the first push plate 9 and the second push plate 11 are driven to move by the push cylinder 3, when the second push plate 11 moves to a specified distance, the guide tube 12 abuts against the sealing plate 23, so that the material passes through the opening 121 and enters between the first push plate 9 and the second push plate 11, when the push cylinder 3 drives the guide tube 12 to move the specified distance in the reverse direction, the storage unit 13 is sealed under the action of the reset mechanism 132, and quantitative feeding is achieved;

[0039] The first push plate 9 and the second push plate 11 are driven to move a specified distance by pushing the cylinder 3. At this time, the No. 1 sieve hole 61 is located between the first push plate 9 and the second push plate 11. At the same time, the expansion rod 14 is driven to move by the first push plate 9 and the second push plate 11, and the sliding rod 15 is cooperated to reduce the distance between the baffle 7 and the inner sieve drum 6 to a distance equal to the inner diameter of the No. 1 sieve hole 61. The inner sieve drum 6 and the blocking structure are driven to rotate by the driving mechanism. Under the action of the rotating shaft 5 and the sliding groove 51, the first push plate 9 and the second push plate 11 are rotated synchronously. At this time, the material falls onto the inner wall of the baffle 7 through the first sieve hole, and the blocking structure rotates and cooperates with the gravity to make the material fall into the specified material trough in the collection unit 21 through the discharge port 71;

[0040] When the driving mechanism is working, the relative movement between the transmission gear 18 and the transmission tooth groove 171 causes the rotating rod 10 to drive the stirring frame 19 to rotate, and the fertilizer particles between the first push plate 9 and the second push plate 11 are lifted and scattered by the stirring frame 19, thereby avoiding the adhesion of the fertilizers and improving the screening efficiency.

[0041] When the screening of the No. 1 sieve hole 61 is completed, the cylinder 3 is pushed to drive the fertilizer particles to move to the No. 2 sieve hole 62 and the No. 3 sieve hole 63 for further screening, thereby achieving quantitative and accurate screening of the fertilizer and avoiding the occurrence of inconsistent appearance of the fertilizer particles due to screening errors.

[0042] It is further explained that the above-mentioned fixed connection should be understood in a broad sense unless otherwise clearly specified and limited. For example, it can be welding, gluing, or one-piece molding, etc., which are conventional means well known to those skilled in the art.

[0043] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A finished product screening device for producing amino acid organic fertilizer, comprising a fixed structure, characterized in that: The fixed structure is composed of a first fixed platform (1) and a second fixed platform (2); a driving mechanism is arranged on a side of the first fixed platform (1) close to the second fixed platform (2); and a pushing cylinder (3) is fixedly installed on the second fixed platform (2); The driving mechanism is composed of a driving motor (4) and a rotating shaft (5) of a circular tubular structure. The driving motor (4) is fixedly mounted on a No. 1 fixed platform (1). The output shaft of the driving motor (4) is inserted into the rotating shaft (5). A pushing plate (31) is fixedly mounted on the telescopic end of the pushing cylinder (3). A rotating plate (32) is rotatably connected to the pushing plate (31) at a side away from the pushing cylinder (3). An inserting shaft (33) is fixedly mounted on a side away from the rotating plate (32). The inserting shaft (33) is inserted into the rotating shaft (5). A plurality of inserting shafts (33) are fixedly mounted on the outer wall of the rotating shaft (5) and at both ends thereof. A plurality of evenly distributed fixed frames (34), an inner sieve cylinder (6) is fixedly installed between two fixed frames (34), a No. 1 sieve hole (61), a No. 2 sieve hole (62) and a No. 3 sieve hole (63) are provided on the inner sieve cylinder (6), the No. 1 sieve hole (61), the No. 2 sieve hole (62) and the No. 3 sieve hole (63) are flush, a slide groove (341) is provided on the fixed frame (34), an L-shaped sliding frame (64) is provided outside the fixed frame (34) and on one side of the slide groove (341), the sliding frame (64) is slidably connected to the slide groove (341), and a blocking structure is fixedly provided on the outer side of the sliding frame (64); The blocking structure is composed of a plurality of uniformly distributed arc-shaped baffles (7) and a plurality of elastic bands (8), the baffles (7) are fixedly mounted on the sliding frame (64), the baffles (7) and the elastic bands (8) are alternately arranged, the two sides of the elastic bands (8) are respectively fixedly mounted on the baffles (7) on the adjacent two sides, the baffles (7) are provided with arc-shaped discharge ports (71), and the discharge ports (71) and the third sieve holes (63) are alternately arranged; The outer wall of the rotating shaft (5) is provided with two symmetrically arranged sliding grooves (51), the sliding grooves (51) penetrate the inner surface of the rotating shaft (5), the outer side of the rotating shaft (5) is sleeved with a first push plate (9) of a circular structure, the first push plate (9) is fixedly connected to the insertion rod through the sliding groove (51), the first push plate (9) contacts the inner wall of the inner screen cylinder (6), a plurality of evenly distributed rotating rods (10) are rotatably connected to the first push plate (9), a second push plate (11) of a circular structure is sleeved inside the inner screen cylinder (6) and located on the outer side of the rotating shaft (5), one end of the rotating rod (10) away from the first push plate (9) is rotatably connected to the second push plate (11), the second push plate (11) contacts the inner wall of the inner screen cylinder (6), and a feeding mechanism is arranged inside the inner screen cylinder (6); The feeding mechanism is composed of a material guide tube (12) and a material storage unit (13); a material inlet is provided on the second push plate (11); the material guide tube (12) is fixedly mounted on a side of the second push plate (11) away from the first push plate (9); a side of the material guide tube (12) away from the second push plate (11) is sealed; an opening (121) is provided on the top of the material guide tube (12); the material storage unit (13) is fixedly mounted on the top of the first fixed platform (1); a material outlet (131) is provided on the material storage unit (13); a sealing block (133) is inserted into the material storage unit (13); and a reset mechanism (132) is provided in the material storage unit (13); A plurality of evenly distributed expansion rods (14) are fixedly installed on the side away from each other of the first push plate (9) and the second push plate (11), and the expansion rods (14) correspond to the fixed frames (34) one by one. The fixed frames (34) are provided with support grooves (342). The expansion rods (14) penetrate the support grooves (342) on the corresponding fixed frames (34). An expansion slot (141) is provided on the expansion rods (14). A sliding rod (15) is fixedly installed on the side of the sliding frame (64) close to the rotating shaft (5). The sliding rod (15) penetrates the expansion slot (141). Three evenly distributed clearance slots (16) are provided on the No. 1 fixed platform (1).

2. A screening device for producing amino acid organic fertilizer finished products according to claim 1, characterized in that: A transmission circular tube (17) is fixedly mounted on one side of the push plate (31) close to the inner screen cylinder (6); a transmission tooth groove (171) is provided on the inner wall of the transmission circular tube (17); a rotating rod (10) extends into the transmission circular tube (17) on a side away from the second push plate (11) and is fixedly mounted with a transmission gear (18); the transmission gear (18) is meshed with the transmission tooth groove (171); and a uniformly distributed stirring frame (19) is fixedly mounted on the rotating rod (10).

3. A screening device for producing amino acid organic fertilizer finished products according to claim 2, characterized in that: A third fixed platform (20) is fixedly arranged between the first fixed platform (1) and the second fixed platform (2); a material collecting unit (21) is fixedly installed on the side of the push plate (31) close to the first fixed platform (1); the bottom of the material collecting unit (21) is slidably connected to the third fixed platform (20); arc-shaped through grooves (22) are provided on the baffle plates (7); the through grooves (22) are connected to the discharge port (71); a plurality of sealing plates (23) are fixedly installed on the outer wall of the inner screen drum (6); the sealing plates (23) correspond to the through grooves (22) one by one, and the sealing plates (23) pass through the corresponding through grooves (22).

4. A screening device for producing amino acid organic fertilizer finished products according to claim 2, characterized in that: A sliding sleeve (24) is sleeved between the first push plate (9) and the second push plate (11) and located on the outer side of the rotating shaft (5).

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