Treatment device for animal feed processing

Abstract

The invention relates to a treatment device for animal feed processing, comprising: a rectangular shell which is a hollow box body with an opening at the bottom; the feeding mechanism is arranged on the top surface of the rectangular shell and is used for uniformly dispersing raw materials to the screening mechanism below; the screening mechanism is arranged in the rectangular shell and located below the feeding mechanism; the screening mechanism comprises a first screen mesh assembly, a second screen mesh assembly and a third screen mesh assembly which are sequentially arranged in the rectangular shell from top to bottom, and the apertures of screen holes of the three screen mesh assemblies are sequentially reduced; a rectangular sleeve shell; according to the invention, three stages of screen assemblies with sequentially reduced screen hole diameters from top to bottom are adopted, the raw materials can be finely classified and screened, the inclination angle of the screen in the range of 0-30 degrees can be adjusted through the cooperation of the air cylinder driving assembly and the arc-shaped guide port, and an operator can adjust the angle according to the physical characteristics of different raw materials such as corn, soybean meal and bran, so that the screening efficiency is improved. And various raw materials can achieve the optimal screening effect, and the application range is wide.

Description

Technical Field

[0001] This invention relates to the field of animal feed processing technology, specifically to a processing apparatus for animal feed processing. Background Technology

[0002] In animal feed processing, feed ingredients (such as grains and soybean meal) must undergo impurity removal and material straightening before entering the color sorting process to ensure that the color sorting equipment can accurately identify and remove moldy and discolored particles. In existing technologies, most feed pretreatment devices use only a single-layer screen for screening, which has the following drawbacks:

[0003] Insufficient screening accuracy: A single-layer screen can only separate impurities of a single particle size (such as one of large-sized straw or small-sized mud and sand), and cannot remove large impurities, fine dust and medium-sized unqualified particles from the raw material at the same time. As a result, some impurities remain in the raw material, and the impurities are easily confused with feed particles during subsequent color sorting, which affects the color sorting accuracy.

[0004] Incomplete material pretreatment: Some raw materials have problems such as caking and hard shells (such as hard pods of legumes). The single-layer screening device lacks crushing function. The caking material is easy to clog the screen. At the same time, hard shell impurities cannot be effectively separated. Additional crushing equipment is required, which increases the complexity of the processing process and the cost of equipment.

[0005] The screening angle is not adjustable: Most existing screens are designed with a fixed angle, which cannot be adjusted according to the type of raw material (such as corn, wheat, bran and other raw materials with different flowability). This causes some raw materials to accumulate on the screen, resulting in low screening efficiency and even missed screening.

[0006] In view of the shortcomings of the existing technology, there is an urgent need for an animal feed processing device that integrates crushing, multi-stage screening and adjustable angle functions to solve the problems of incomplete impurity separation, inconsistent material pretreatment and low screening efficiency. Summary of the Invention

[0007] The purpose of this invention is to provide a processing apparatus for animal feed processing to solve the above-mentioned problems.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a processing device for animal feed processing, comprising: a rectangular shell, which is a hollow box with an open bottom; a feeding mechanism disposed on the top surface of the rectangular shell for uniformly dispersing raw materials to a screening mechanism below; a screening mechanism disposed inside the rectangular shell and below the feeding mechanism; the screening mechanism includes a first screen assembly, a second screen assembly, and a third screen assembly, which are arranged sequentially from top to bottom inside the rectangular shell, and the aperture of the three screen assemblies decreases sequentially; a rectangular sleeve fitted onto the bottom of the rectangular shell; a discharge hopper disposed inside the rectangular sleeve and located directly below the screening mechanism; and a discharge trough disposed on the bottom surface of the rectangular sleeve and correspondingly connected to the bottom of the discharge hopper.

[0009] Preferably, the feeding mechanism includes a connecting pipe, which is vertically disposed at the feeding port on the top surface of the rectangular casing;

[0010] A feed pipe is embedded in the top of the connecting pipe; a feed hopper is disposed on the top surface of the feed pipe.

[0011] The second rotating rod and the first rotating rod are installed parallel to each other at the top and bottom of the feed pipe;

[0012] There are two gears, which are respectively fitted onto the same end of the first rotating rod and the second rotating rod, and the two gears mesh with each other;

[0013] The motor is mounted on the side wall of the feed pipe away from the gear, and its output end is connected to the other end of the first rotating rod.

[0014] Preferably, it also includes crushing rollers, of which multiple rollers are provided and are evenly distributed on the outer wall of the second rotating rod along the axial direction of the second rotating rod;

[0015] A spiral auger is wound around the outer wall of the first rotating rod.

[0016] Each screen assembly includes a rectangular frame;

[0017] Four springs are provided, each located at one of the four corners of the top surface of the rectangular frame;

[0018] A screen is disposed on the top surface of the four springs;

[0019] A connecting plate is located at the center of the screen; a vibrating motor is located on the bottom surface of the connecting plate.

[0020] A concave baffle groove is provided at the top edge of the screen.

[0021] Preferably, each set of screen components further includes a round rod, which is horizontally inserted through one end of the rectangular frame along the width direction of the rectangular frame;

[0022] The two ends of the round rod are connected to the front wall and the rear wall of the rectangular shell, respectively;

[0023] A guide rod is horizontally inserted through the other end of the rectangular frame along the width direction, and is set parallel to the round rod;

[0024] The front and rear walls of the rectangular shell are each provided with three arc-shaped guide openings, with the front and rear arc-shaped guide openings corresponding to the two ends of the corresponding guide rods, respectively.

[0025] Both ends of the guide rod extend into the arc-shaped guide opening and can move along the arc-shaped trajectory of the arc-shaped guide opening.

[0026] Preferably, it also includes a drive assembly, which is provided in three sets and is respectively installed on the inner wall of the rectangular housing, with each drive assembly corresponding to each screen assembly.

[0027] The drive assembly includes a first mounting bracket, which is mounted on the inner wall of the rectangular housing on the side opposite to the concave baffle groove;

[0028] The movable block is mounted inside the first mounting bracket via a shaft.

[0029] A cylinder is mounted on the movable block;

[0030] The second mounting bracket is disposed on the bottom surface of the rectangular frame;

[0031] The output end of the cylinder is connected to the second mounting bracket via a shaft.

[0032] Preferably, it also includes a side plate, which is installed at the side opening of the rectangular housing;

[0033] The first discharge port, the second discharge port, and the third discharge port are sequentially opened on the side plate from top to bottom;

[0034] The position of the first discharge port on the side plate corresponds to the inclined lower end of the screen in the first screen assembly;

[0035] The position of the second discharge port on the side plate corresponds to the inclined lower end of the screen in the second screen assembly;

[0036] The position of the third discharge port on the side plate corresponds to the inclined lower end of the screen in the third screen assembly.

[0037] Preferably, it also includes a first discharge chute, a second discharge chute, and a third discharge chute, which are arranged sequentially from top to bottom on the side plate and correspond to the first discharge port, the second discharge port, and the third discharge port, respectively.

[0038] Preferably, it also includes four bottom pillars, which are respectively located at the four corners of the bottom surface of the rectangular casing.

[0039] Preferably, it also includes an angle gauge, which is engraved on the outer wall of the rectangular shell along the arc direction of the arc-shaped guide opening;

[0040] The pointer is fitted onto the end of the guide rod adjacent to the angle ruler.

[0041] This invention has at least the following beneficial effects:

[0042] 1. This invention uses a three-stage sieve assembly with progressively smaller sieve apertures from top to bottom, which can perform fine grading and screening of raw materials, effectively separating impurities and unqualified particles of large, medium and small sizes. After screening, the purity of the raw materials is improved, ensuring the quality of subsequent processing steps.

[0043] 2. The feeding mechanism of this invention is equipped with a crushing roller and a spiral auger. The crushing roller can pre-crush agglomerated raw materials, and the spiral auger can achieve uniform dispersion and conveying of raw materials. Combined with the high-frequency vibration motor of the screen assembly, the screen hole clogging is avoided from the source, the screening efficiency is improved, and the frequency of manual cleaning is reduced.

[0044] 3. This invention uses a cylinder drive assembly in conjunction with an arc-shaped guide port to achieve an adjustable tilt angle of the screen within the range of 0-30°. Operators can adjust the angle according to the physical characteristics of different raw materials such as corn, soybean meal, and bran to ensure that all kinds of raw materials can achieve the best screening effect, making it widely applicable. Attached Figure Description

[0045] Figure 1 This is a schematic diagram of the structure of the present invention;

[0046] Figure 2 This is a cross-sectional view of the structure of the present invention;

[0047] Figure 3 This is a schematic diagram of the rectangular casing of the present invention;

[0048] Figure 4 This is a schematic diagram of the structure of the screen assembly of the present invention;

[0049] Figure 5 This is a cross-sectional view of the feeding mechanism of the present invention.

[0050] In the attached drawings, the following are the reference numerals: 1. Rectangular casing; 2. Rectangular shell; 3. Side plate; 4. First discharge port; 5. First discharge trough; 6. Second discharge trough; 7. Second discharge port; 8. Third discharge trough; 9. Third discharge port; 10. Discharge chute; 11. Base column; 12. Arc-shaped guide port; 13. Angle gauge; 14. Guide rod; 15. Pointer; 16. Feed hopper; 17. Feed pipe; 18. Connecting pipe; 19. First screen assembly; 20. 21. Second screen assembly; 22. Third screen assembly; 23. Discharge hopper; 24. Screen; 25. Concave baffle groove; 26. Spring; 27. Rectangular frame; 28. Round rod; 29. ​​Vibrating motor; 20. Connecting plate; 31. First mounting frame; 32. Movable block; 33. Cylinder; 34. Second mounting frame; 35. Gear; 36. First rotating rod; 37. Second rotating rod; 38. Crushing roller; 39. Spiral auger; 30. Motor. Detailed Implementation

[0051] 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.

[0052] Please see Figure 1 The present invention provides a technical solution: a processing device for animal feed processing, including a rectangular shell 2, which is a hollow box with an open bottom, serving as the core mounting carrier of the device. Its inner wall is reserved for the connection structure for installing the screening mechanism and the drive assembly, and the side wall is provided with an opening for discharging material, and a side plate 3 is detachably installed at the opening.

[0053] Please see Figures 1-3 A rectangular sleeve 1 is fitted onto the bottom of the rectangular shell 2, forming a detachable connection with the rectangular shell 2. It is used to wrap the discharge hopper 22 and receive the qualified raw materials falling from the screening mechanism. The bottom surface has four corner posts 11 to support the entire device and adapt to different ground flatness. The discharge hopper 22 is located inside the rectangular sleeve 1 and directly below the screening mechanism. Its top is a flared structure and its bottom is a constricted structure. The flared structure can maximize the reception of the screened raw materials, and the constricted structure is connected to the discharge trough 10 to ensure the stable fall of the raw materials. The discharge trough 10 is located on the bottom surface of the rectangular sleeve 1 and is connected to the bottom of the discharge hopper 22. The inner wall of the discharge trough 10 is provided with a wear-resistant coating to avoid wear caused by long-term transportation of raw materials. At the same time, a conveyor belt can be connected to its outlet to realize the continuous transportation of the screened raw materials.

[0054] Please see Figure 2 and Figure 5The feeding mechanism is located on the top surface of the rectangular shell 2, which is used to evenly distribute the raw materials to the screening mechanism below to avoid raw material accumulation.

[0055] Specifically, the connecting pipe 18 is vertically installed at the feed inlet on the top surface of the rectangular shell 2 to guide the raw material to fall stably. The feed pipe 17 is embedded in the top of the connecting pipe 18 and is coaxially arranged with the connecting pipe 18. The feed hopper 16 is installed on the top surface of the feed pipe 17 and has a funnel-shaped structure that is wider at the top and narrower at the bottom. Its top edge is provided with a spill-proof edge to prevent the raw material from spilling when it is fed.

[0056] The second rotating rod 35 and the first rotating rod 34 are parallel to each other and pass through the top and bottom of the feed pipe 17, and the axes of both are perpendicular to the axis of the feed pipe 17. The first rotating rod 34 is located on the side of the feed pipe 17 near the connecting pipe 18, and the second rotating rod 35 is located on the side of the feed pipe 17 near the feed hopper 16. Two gears 33 are provided and respectively sleeved on the same end of the first rotating rod 34 and the second rotating rod 35. The two gears 33 mesh with each other to ensure that the first rotating rod 34 and the second rotating rod 35 rotate synchronously in opposite directions. The motor 38 is located on the side wall of the feed pipe 17 away from the gears 33. Its output end is connected to the other end of the first rotating rod 34 through a coupling. The motor 38 is a variable frequency motor, which can control the falling speed of the raw material by adjusting the speed.

[0057] It also includes crushing rollers 36 and augers 37. Multiple crushing rollers 36 are provided and are evenly distributed on the outer wall of the second rotating rod 35 along the axial direction of the second rotating rod 35. The outer wall of the crushing rollers 36 is provided with anti-slip teeth, which can perform preliminary crushing of agglomerated raw materials. The augers 37 are wound around the outer wall of the first rotating rod 34. The spiral blades of the augers 37 are in clearance fit with the inner wall of the feed pipe 17, which can evenly push the raw materials fed into the feed hopper 16 downwards.

[0058] Please see Figure 1 , Figure 2 and Figure 4 The screening mechanism is located inside the rectangular housing 2 and below the feeding mechanism, and is used to perform multi-stage fine screening of raw materials.

[0059] It includes a first screen assembly 19, a second screen assembly 20, and a third screen assembly 21. The three screen assemblies are arranged sequentially from top to bottom inside the rectangular housing 2, and the screen aperture of the three screen assemblies decreases sequentially. For example, the screen aperture of the first screen assembly 19 is 8-10 mm, the screen aperture of the second screen assembly 20 is 4-6 mm, and the screen aperture of the third screen assembly 21 is 1-2 mm. Each screen assembly has the same structure.

[0060] Please see Figure 4Specifically, the rectangular frame 25 serves as the mounting frame for the screen assembly, and its dimensions are adapted to the internal cross-section of the rectangular shell 2. Through holes for the round rod 26 and guide rod 14 are pre-drilled at both ends of the rectangular frame 25. Four springs 24 are provided and fixed at the four corners of the top surface of the rectangular frame 25. The springs 24 are high-strength compression springs with good elastic restoring ability. The screen 23 is fixed to the top surface of the four springs 24, and the edge of the screen 23 is aligned with the edge of the rectangular frame 25. The screen 23 is made of stainless steel, possessing high wear resistance and corrosion resistance. The connecting plate 28 is fixed at the center of the screen 23 and is a rectangular metal plate used to install the vibration motor 27. The vibration motor 27 is fixed to the bottom surface of the connecting plate 28 by bolts. The vibration motor 27 is an eccentric vibration motor that can drive the screen 23 to vibrate at high frequency, accelerating the screening and falling of raw materials and preventing the screen 23 from clogging.

[0061] The concave baffle groove 231 is set on the top edge of the screen 23 and extends along the width direction of the screen 23. The height of the concave baffle groove 231 is 2-3cm, which can prevent the raw material from spilling from the edge when the screen 23 vibrates.

[0062] Please see Figure 1 and Figure 4 It also includes a round rod 26, a guide rod 14, an angle ruler 13, and a pointer 15. The round rod 26 is horizontally inserted through one end of the rectangular frame 25 along its width direction. The two ends of the round rod 26 are fixedly connected to the front and rear walls of the rectangular housing 2, respectively. The rectangular frame 25 can rotate around the round rod 26. The guide rod 14 is horizontally inserted through the other end of the rectangular frame 25 along its width direction and is parallel to the round rod 26. The front and rear walls of the rectangular housing 2 are each provided with three arc-shaped guide openings 12. The front and rear arc-shaped guide openings 12 are respectively... The two ends of the guide rod 14 are respectively aligned with the two ends of the guide rod 14. The two ends of the guide rod 14 extend into the arc-shaped guide opening 12 and can move along the arc-shaped trajectory of the arc-shaped guide opening 12. The angle ruler 13 is engraved on the outer wall of the rectangular shell 2 along the arc direction of the arc-shaped guide opening 12. The angle ruler 13 has a range of 0-30° and is used to display the tilt angle of the screen 23. The pointer 15 is sleeved on the end of the guide rod 14 adjacent to the angle ruler 13. The pointer 15 points to the scale of the angle ruler 13, which makes it easy for the operator to read the tilt angle of the screen 23 intuitively.

[0063] Please see 2- Figure 4The drive assembly consists of three sets, each fixed to the inner wall of the rectangular housing 2. Each drive assembly corresponds to a screen assembly and is used to drive the screen assembly to rotate around the round rod 26, thereby adjusting the tilt angle of the screen 23. Specifically, it includes a first mounting frame 29, a movable block 30, a cylinder 31, and a second mounting frame 32. The first mounting frame 29 is fixed to the inner wall of the rectangular housing 2 on the side opposite to the concave baffle groove 231. The first mounting frame 29 has a movable groove inside. The movable block 30 is set in the movable groove of the first mounting frame 29 through a shaft. The movable block 30 can rotate around the shaft. The cylinder 31 is fixed on the movable block 30. The cylinder 31 is a telescopic pneumatic cylinder, and its extension length can be controlled by a valve. The second mounting frame 32 is fixed to the bottom surface of the rectangular frame 25. The output end of the cylinder 31 is connected to the second mounting frame 32 through a shaft. When the cylinder 31 extends or retracts, it can drive the rectangular frame 25 to rotate around the round rod 26, thereby adjusting the tilt angle of the screen 23.

[0064] Please see Figure 1 It also includes a side plate 3, which is installed at the side opening of the rectangular housing 2. The first discharge port 4, the second discharge port 7 and the third discharge port 9 are sequentially opened on the side plate 3 from top to bottom. The position of the first discharge port 4 on the side plate 3 corresponds to the inclined lower end of the screen 23 in the first screen assembly 19. The second discharge port 7 corresponds to the inclined lower end of the screen 23 in the second screen assembly 20. The third discharge port 9 corresponds to the inclined lower end of the screen 23 in the third screen assembly 21. The size of the discharge port is adapted to the width of the screen 23 to ensure that the raw materials trapped on the screen 23 can be completely discharged.

[0065] The first discharge trough 5, the second discharge trough 6, and the third discharge trough 8 are fixed to the outer wall of the side plate 3 from top to bottom, and correspond to the first discharge port 4, the second discharge port 7, and the third discharge port 9, respectively. The discharge trough is a downward inclined trough structure, and its bottom can be connected to a collection box to receive raw materials of different particle sizes discharged from the discharge port.

[0066] Working principle: When in use, the cylinder 31 is started according to the physical characteristics of the raw material to be screened. The cylinder 31 extends and retracts to push the rectangular frame 25 to rotate around the round rod 26. The guide rod 14 slides along the arc-shaped guide opening 12. Through the cooperation of the pointer 15 and the angle ruler 13, the tilt angle of the three sets of screens 23 is adjusted to the optimal screening angle of the raw material. After the adjustment is completed, the cylinder 31 is turned off.

[0067] The raw material to be screened is slowly fed into the feed hopper 16. The raw material first enters the top of the feed pipe 17 and comes into contact with the crushing roller 36 on the second rotating rod 35. The motor 38 drives the first rotating rod 34 to rotate, and through the meshing of the gear 33, it drives the second rotating rod 35 to rotate in the opposite direction synchronously. The crushing roller 36 crushes the agglomerated raw material. The crushed raw material falls to the spiral auger 37 of the first rotating rod 34. The spiral auger 37 rotates with the first rotating rod 34 and pushes the crushed raw material evenly to the connecting pipe 18. It then falls stably onto the screen 23 of the first screen assembly 19 through the connecting pipe 18.

[0068] First-stage screening: Vibration motor 27 drives screen 23 to vibrate at high frequency. Impurities with a particle size larger than the mesh size of screen 23 in the first screen assembly 19 are intercepted and slide along the inclined screen 23 to the first discharge port 4. They fall into the corresponding collection box through the first discharge chute 5. Raw materials with a particle size smaller than the mesh size of screen 23 in the first screen assembly 19 pass through screen 23 and fall to the second screen assembly 20.

[0069] Second-stage screening: The screen 23 of the second screen assembly 20 continues to vibrate and screen. Impurities with a particle size larger than the mesh size of the screen 23 in the second screen assembly 20 are intercepted and slide along the screen 23 to the second discharge port 7, and are collected through the second discharge trough 6. Raw materials with a particle size smaller than the mesh size of the screen 23 in the second screen assembly 20 fall to the third screen assembly 21.

[0070] Third-stage screening: The screen 23 of the third screen assembly 21 further screens the particles. Impurities with a particle size larger than the mesh size of the screen 23 in the third screen assembly 21 are intercepted. The fine impurities slide along the screen 23 to the third discharge port 9 and are collected through the third discharge trough 8. The qualified raw materials with a particle size smaller than the mesh size of the screen 23 in the third screen assembly 21 pass through the screen 23 and fall into the discharge hopper 22.

[0071] After the qualified raw materials are collected by the discharge hopper 22, they are introduced into the discharge trough 10. The qualified raw materials are then transported to the subsequent color sorting or mixing process by the conveyor belt connected to the bottom of the discharge trough 10.

[0072] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the scope of the invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0073] 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 processing apparatus for processing animal feed, characterized in that, include: A rectangular shell (2), which is a hollow box with an opening at the bottom; The feeding mechanism is located on the top surface of the rectangular shell (2) and is used to evenly disperse the raw materials to the screening mechanism below. The screening mechanism is located inside the rectangular housing (2) and below the feeding mechanism; The screening mechanism includes a first screen assembly (19), a second screen assembly (20) and a third screen assembly (21), which are arranged in sequence from top to bottom inside the rectangular shell (2), and the sieve aperture of the three screen assemblies decreases in sequence. A rectangular sleeve (1) is fitted onto the bottom of the rectangular shell (2); The discharge hopper (22) is located inside the rectangular casing (1) and is located directly below the screening mechanism; The discharge trough (10) is located on the bottom surface of the rectangular casing (1) and is connected to the bottom of the discharge hopper (22).

2. The processing apparatus for animal feed processing according to claim 1, characterized in that: The feeding mechanism includes a connecting pipe (18), which is vertically arranged at the feed inlet on the top surface of the rectangular casing (1); The feed pipe (17) is embedded in the top of the connecting pipe (18); the feed hopper (16) is disposed on the top surface of the feed pipe (17); The second rotating rod (35) and the first rotating rod (34) are parallel to each other and pass through the top and bottom of the feed pipe (17); Two gears (33) are provided, respectively fitted on the same end of the first rotating rod (34) and the second rotating rod (35), and the two gears (33) mesh with each other; The motor (38) is located on the side wall of the feed pipe (17) away from the gear (33), and its output end is connected to the other end of the first rotating rod (34).

3. The processing apparatus for animal feed processing according to claim 2, characterized in that: It also includes crushing rollers (36), of which multiple rollers are provided and are evenly distributed on the outer wall of the second rotating rod (35) along the axial direction of the second rotating rod (35); The spiral auger (37) is wound around the outer wall of the first rotating rod (34).

4. The processing apparatus for animal feed processing according to claim 1, characterized in that: Each screen assembly includes a rectangular frame (25); Four springs (24) are provided, respectively located at the four corners of the top surface of the rectangular frame (25); A screen (23) is disposed on the top surface of the four springs (24); A connecting plate (28) is located at the center of the screen (23); a vibrating motor (27) is located on the bottom surface of the connecting plate (28); A concave baffle groove (231) is provided at the top edge of the screen (23).

5. The processing apparatus for animal feed processing according to claim 4, characterized in that: Each set of screen components also includes a round rod (26) which is horizontally inserted through one end of the rectangular frame (25) along the width direction of the rectangular frame (25); The two ends of the round rod (26) are respectively connected to the front wall and the rear wall of the rectangular shell (2); The guide rod (14) is horizontally inserted through the other end of the rectangular frame (25) along the width direction of the rectangular frame (25) and is set parallel to the round rod (26); The rectangular shell (2) has three arc-shaped guide openings (12) on its front and rear walls, and the front and rear arc-shaped guide openings (12) correspond to the two ends of the corresponding guide rods (14); The two ends of the guide rod (14) extend into the arc-shaped guide opening (12) respectively, and can move along the arc-shaped trajectory of the arc-shaped guide opening (12).

6. The processing apparatus for animal feed processing according to claim 4, characterized in that: It also includes drive components, which are provided in three sets and installed on the inner wall of the rectangular housing (2), with each set of drive components corresponding to each set of screen components; The drive assembly includes a first mounting bracket (29) mounted on the inner wall of the rectangular housing (2) on the side opposite to the concave baffle groove (231); The movable block (30) is set inside the first mounting bracket (29) via a shaft; A cylinder (31) is mounted on the movable block (30); The second mounting bracket (32) is disposed on the bottom surface of the rectangular frame (25); The output end of the cylinder (31) is connected to the second mounting bracket (32) via a shaft.

7. The processing apparatus for animal feed processing according to claim 1, characterized in that: It also includes a side plate (3), which is installed at the side opening of the rectangular housing (2); The first discharge port (4), the second discharge port (7) and the third discharge port (9) are sequentially opened on the side plate (3) from top to bottom; The position of the first discharge port (4) on the side plate (3) corresponds to the inclined lower end of the screen (23) in the first screen assembly (19); The position of the second discharge port (7) on the side plate (3) corresponds to the inclined lower end of the screen (23) inside the second screen assembly (20); The position of the third discharge port (9) on the side plate (3) corresponds to the inclined lower end of the screen (23) in the third screen assembly (21).

8. The processing apparatus for animal feed processing according to claim 7, characterized in that: It also includes a first discharge trough (5), a second discharge trough (6) and a third discharge trough (8), which are arranged sequentially from top to bottom on the side plate (3) and correspond to the first discharge port (4), the second discharge port (7) and the third discharge port (9) respectively.

9. The processing apparatus for animal feed processing according to claim 1, characterized in that: It also includes four bottom columns (11), which are respectively located at the four corners of the bottom surface of the rectangular casing (1).

10. The processing apparatus for animal feed processing according to claim 5, characterized in that: It also includes an angle ruler (13), which is engraved on the outer wall of the rectangular shell (2) along the arc direction of the arc guide (12); The pointer (15) is fitted onto the end of the guide rod (14) adjacent to the angle ruler (13).

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