A pelleting device for fly larvae biological feed
By designing a fly larvae biological feed pelleting device with components such as cylinders, hydraulic cylinders, and cutting plates, the device solves the problems of molding difficulties and adhesion in the processing of fly larvae raw materials with high humidity in traditional devices. It achieves efficient moisture treatment and cleaning functions, improves production efficiency and automation, and meets the needs of large-scale production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU MAGATE BIOTECHNOLOGY CO LTD
- Filing Date
- 2025-07-05
- Publication Date
- 2026-05-26
AI Technical Summary
Traditional fly larvae feed pelleting equipment is prone to problems such as difficulty in forming and pellet sticking when processing raw materials with high humidity and high viscosity. It also lacks effective moisture treatment and cleaning functions, resulting in low production efficiency, high equipment maintenance costs, low degree of automation, and difficulty in meeting the needs of large-scale production.
A pelleting device for fly larvae biological feed was designed, which includes components such as a cylinder, a connecting plate, a moving plate, a hydraulic cylinder, a cutting plate, and a scraper. The moving plate is driven by the cylinder to feed the material in layers, the hydraulic cylinder squeezes out excess water, the motor drives the scraper to clean up the adhering material, and a water tank, water pipe and screen plate are set up to treat water and impurities, so as to achieve efficient extrusion molding and cleaning.
It effectively reduces molding difficulty and adhesion, improves the dryness and stability of feed pellets, reduces cleaning difficulty and equipment maintenance costs, and realizes integrated and efficient operation of raw material pretreatment, extrusion molding, cutting and screening to meet the needs of large-scale production.
Smart Images
Figure CN224268218U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of granulation equipment technology, and in particular to a granulation equipment for fly larvae biological feed. Background Technology
[0002] With the rapid development of modern aquaculture, the demand for high-quality feed is increasing. Fly larvae are rich in protein, amino acids, vitamins, and various trace elements, possessing advantages such as high nutritional value, high conversion rate, and low production cost. They have become a highly promising biological feed ingredient, and their application in aquaculture, livestock and poultry farming, and other fields is gradually becoming more widespread. However, the pelleting process for processing fly larvae into feed still faces many problems. Traditional feed pelleting equipment, due to the high moisture content and viscosity of fly larvae, is prone to problems such as difficulty in forming and pellet adhesion, resulting in unstable feed pellet quality and a low pass rate. At the same time, existing equipment often lacks effective moisture treatment and cleaning functions, failing to promptly remove excess moisture from the raw materials. Furthermore, debris and adhered particles generated during the cutting process are difficult to clean, affecting production efficiency and increasing equipment maintenance costs and cleaning difficulty. In addition, traditional pelleting equipment has a low degree of automation, making it difficult to achieve integrated and efficient operation of raw material pretreatment, extrusion molding, cutting, and screening processes, thus failing to meet the needs of large-scale production. CN222340491U discloses a pelleting device for fly larvae biological feed, relating to the technical field of pelleting devices. The device includes a base, a U-shaped support fixedly connected to the surface of the base, a material hopper fixedly connected to the inner surface of the U-shaped support, a connecting seat fixedly connected to the bottom of the material hopper, a discharge plate inside the connecting seat, a locking block fixedly connected to the outer surface of the connecting seat, and a locking seat fixedly connected to the outer surface of the material hopper. A square groove is formed on the top surface of the locking block, and a first insert block is slidably connected inside the square groove. A spring is fixedly connected to the side of the first insert block, and a second insert block is fixedly connected to the end of the spring away from the first insert block. While this device improves production efficiency by allowing for quick assembly and disassembly of components such as the discharge plate, it also encounters problems during production, such as difficulty in pellet formation and material adhesion due to high moisture content in the raw materials during extrusion and cutting. Therefore, improvements are needed. Utility Model Content
[0003] The purpose of this utility model is to solve the technical problems mentioned in the background art.
[0004] This utility model adopts the following technical solution: a fly larvae biological feed granulation device, including a base, a support fixedly connected to the surface of the base, a vertical plate fixedly connected to the surface of the support, a material box fixedly connected to the surface of the vertical plate, a hydraulic cylinder fixedly connected to the surface of the support, an extrusion plate fixedly connected to the output end of the hydraulic cylinder, a cylinder fixedly connected to the side of the material box, a connecting plate fixedly connected to the output end of the cylinder, a moving plate fixedly connected to the surface of the connecting plate, a fixed frame fixedly connected to the surface of the material box, a motor A fixedly connected to the side of the fixed frame, a screw A fixedly connected to the output end of the motor A, a cutting plate threadedly connected to the surface of the screw A, a motor B fixedly connected to one end of the cutting plate, a screw B fixedly connected to the output end of the motor B, a scraper threadedly connected to the surface of the screw B, and a sliding rod slidably connected inside the cutting plate.
[0005] Preferably, a water trough is fixedly connected to the side of the feed hopper, a water pipe is fixedly connected to the surface of the water trough, and a crushing disc is fixedly connected to the surface of the base. Here, the water trough surrounds the side of the feed hopper to collect water and impurities discharged from the feed hopper's drain hole. The water pipe is connected to the water trough, allowing the collected wastewater to be diverted to an external wastewater treatment device. The crushing disc is located below the cutting plate. The water trough and water pipe allow for timely drainage of excess water from the raw materials, preventing excessive moisture from affecting feed formation and storage. The crushing disc facilitates the collection and recycling of crushed materials, reducing raw material waste and maintaining a clean working environment.
[0006] Preferably, the surface of the movable plate is slidably connected to the interior of the hopper, the two ends of screws A and B are rotatably connected to the interior of the fixed frame and the cutting plate, respectively, the surface of the cutting plate is slidably connected to the interior of the fixed frame, the surface of the scraper is slidably connected to the interior of the cutting plate, and the two ends of the slide rod are fixedly connected to the two ends of the fixed frame. Here, a wear-resistant slide rail and a slider are provided between the movable plate and the inner wall of the hopper to ensure smooth sliding of the movable plate and reduce frictional wear. Screws A and B are connected to the fixed frame and the cutting plate, respectively, through bearings to ensure smooth rotation. The cutting plate has a groove adapted to the slide rod, and a lubricating layer is provided in the groove, allowing the cutting plate to move flexibly on the slide rod.
[0007] Preferably, the movable plate is adapted to the chute inside the feed box. The cylinder, connecting plate, and movable plate are symmetrically distributed on both sides of the feed box. The size of the extrusion plate matches the internal size of the feed box. Multiple drainage holes are provided on both sides of the feed box, and the positions of the drainage holes correspond to the water trough. Here, the size of the movable plate perfectly matches the chute inside the feed box, and the edge of the movable plate is provided with a sealing strip to prevent raw material leakage. The symmetrically distributed cylinder, connecting plate, and movable plate are connected by a synchronous control system to ensure that the movable plates on both sides move synchronously. The surface of the extrusion plate is flat and smooth, and the gap between it and the inner wall of the feed box is minimal, enabling efficient extrusion of the raw material. The drainage holes of the feed box are circular with a moderate diameter, which can ensure rapid drainage of water and prevent raw material leakage. The drainage holes are connected to the water trough through a guide channel to ensure smooth drainage. The symmetrical structural design and precise size matching make the raw material evenly stressed in the feed box, resulting in better extrusion molding effect. The reasonable layout of the drainage holes and water trough can effectively remove moisture from the raw material, improving the dryness and stability of the feed pellets.
[0008] Preferably, a sieve disc is fixedly connected inside the support, a motor C is fixedly connected to the lower surface of the sieve disc, a stirring rod is fixedly connected to the output end of the motor C, a spring is fixedly connected inside the feed box, a top rod is fixedly connected to one end of the spring, and a top plate is fixedly connected to one end of the top rod. Here, the sieve disc is located below the cutting plate and has a mesh structure. The mesh size is designed according to the feed pellet specifications to screen qualified feed pellets. The motor C is connected to the stirring rod through a reducer, which can adjust the stirring speed. The stirring rod is equipped with multiple stirring blades to agitate and disperse the feed pellets during the screening process, preventing pellet accumulation and accelerating the rapid evaporation of pellet moisture to reduce adhesion. The spring is a high-strength compression spring, initially in a compressed state, providing upward elasticity to the top plate. This allows the top plate to apply pressure to the moving plate and move in close contact with the sliding groove of the feed box to scrape off residual raw materials and reduce adhesion.
[0009] Preferably, the surface of the top rod is slidably connected to the interior of the feed hopper, the surface of the stirring rod is rotatably connected to the inner surface of the sieve disc, and the surface of the top plate is slidably connected to the interior of the feed hopper. Here, the stirring rod is connected to the sieve disc via a bearing, which is designed to be waterproof and dustproof to prevent feed particles and moisture from entering and affecting rotational performance. Wear-resistant slide rails and sliders are also provided between the top plate and the inner wall of the feed hopper to ensure smooth sliding of the top plate. A sealing ring is provided at the edge of the top plate to prevent raw materials from leaking from gaps.
[0010] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0011] 1. This utility model incorporates a cylinder, a connecting plate, a moving plate, a fixed frame, a cutting plate, and a scraper. The cylinder drives the connecting plate and the moving plate to first separate the material into layers in the material box. Then, the raw material is fed into the hydraulic cylinder, which pushes the extrusion plate to squeeze out excess water, reducing the difficulty in forming and adhesion caused by excessive moisture during the subsequent extrusion molding process. The motor B drives the scraper to scrape off surface residues on the cutting plate, which can also effectively reduce particle adhesion and facilitate subsequent cleaning.
[0012] 2. This utility model is equipped with a motor C, a stirring rod, a spring, a top rod, and a top plate. The spring applies elastic force to the top rod, which in turn causes the top plate to continuously apply pressure to the moving plate. This ensures that the moving plate is always in close contact with the sliding arm inside the material box. During movement, the sticky raw materials can be effectively scraped off, ensuring the quality of granule production and facilitating subsequent cleaning while reducing the difficulty of cleaning work. Attached Figure Description
[0013] Figure 1 This utility model provides an overall structural schematic diagram of a fly larvae biological feed granulation device;
[0014] Figure 2 A top view of the feed hopper section of a fly larvae biological feed pelleting device is provided for this utility model;
[0015] Figure 3 A bottom view of the feed box and connecting parts of a fly larvae biological feed pelleting device is provided for this utility model;
[0016] Figure 4 This utility model provides a schematic diagram of the cutting plate structure of a fly larvae biological feed granulation device;
[0017] Figure 5 This utility model provides a schematic diagram of the sieve tray of a fly larvae biological feed granulation device;
[0018] Figure 6 An exploded view of the top plate inside the feed hopper of a fly larvae biological feed pelleting device is provided for this utility model.
[0019] Legend:
[0020] 1. Base; 2. Bracket; 3. Vertical plate; 4. Material box; 5. Hydraulic cylinder; 6. Extrusion plate; 7. Cylinder; 8. Connecting plate; 9. Moving plate; 10. Fixed frame; 11. Motor A; 12. Screw A; 13. Cutting plate; 14. Motor B; 15. Screw B; 16. Scraper; 17. Slide rod; 18. Water tank; 19. Water pipe; 20. Screening tray; 21. Crushing tray; 22. Motor C; 23. Agitator rod; 24. Spring; 25. Top rod; 26. Top plate. Detailed Implementation
[0021] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0023] Example 1
[0024] Please see Figure 1-4This utility model provides a technical solution: a fly larvae biological feed granulation device, including a base 1, a support 2 fixedly connected to the surface of the base 1, a vertical plate 3 fixedly connected to the surface of the support 2, a material box 4 fixedly connected to the surface of the vertical plate 3, a hydraulic cylinder 5 fixedly connected to the surface of the support 2, an extrusion plate 6 fixedly connected to the output end of the hydraulic cylinder 5, a cylinder 7 fixedly connected to the side of the material box 4, a connecting plate 8 fixedly connected to the output end of the cylinder 7, a moving plate 9 fixedly connected to the surface of the connecting plate 8, a fixing frame 10 fixedly connected to the surface of the material box 4, a motor A11 fixedly connected to the side of the fixing frame 10, a screw A12 fixedly connected to the output end of the motor A11, a cutting plate 13 threadedly connected to the surface of the screw A12, a motor B14 fixedly connected to one end of the cutting plate 13, a screw B15 fixedly connected to the output end of the motor B14, a scraper 16 threadedly connected to the surface of the screw B15, and a sliding rod 17 slidably connected inside the cutting plate 13. Here, the base 1 serves as the foundation of the entire device, made of high-strength steel, with anti-slip pads on the bottom to ensure the stability of the device during operation. The support 2 has a frame structure, providing stable support for components such as the upright plate 3, the feed bin 4, and the hydraulic cylinder 5. The feed bin 4 is hollow inside and used to store fly larvae biological feed raw materials. Its inner wall is smooth and made of anti-corrosion material, which facilitates cleaning and prevents raw material residue. Hydraulic cylinder 5, powered by a hydraulic pump, precisely controls the movement distance and pressure of extrusion plate 6 to extrude and shape the raw materials in feed hopper 4. Cylinder 7 is a bidirectional cylinder. Motor A11 drives screw A12 to rotate, causing cutting plate 13 to move horizontally along slide rod 17 via threaded transmission, thus cutting the shaped feed. Motor B14 drives screw B15 to rotate, causing scraper 16 to move up and down within cutting plate 13 to clean feed particles adhering to it. The hydraulic cylinder 5 and moving plate 9 work together to effectively remove moisture from the raw materials, ensuring the quality of the feed particles and reducing particle adhesion. A water trough 18 is fixedly connected to the side of feed hopper 4, and a water pipe 19 is fixedly connected to the surface of water trough 18. A crushing disc 21 is fixedly connected to the surface of base 1. Here, water trough 18 surrounds the side of feed hopper 4 to collect water and impurities discharged from the drain hole of feed hopper 4. Water pipe 19 connects to water trough 18, allowing the collected wastewater to be diverted to an external wastewater treatment device. The crushing tray 21 is located below the cutting plate 13. The water tank 18 and water pipe 19 can drain excess water from the raw materials in time, avoiding the impact of excessive moisture on feed formation and storage. The crushing tray 21 facilitates the collection and recycling of crushed materials, reducing raw material waste and keeping the working environment clean. The surface of the moving plate 9 is slidably connected to the inside of the feed box 4. The two ends of the screw A12 and screw B15 are rotatably connected to the fixed frame 10 and the inside of the cutting plate 13, respectively. The surface of the cutting plate 13 is slidably connected to the inside of the fixed frame 10. The surface of the scraper 16 is slidably connected to the inside of the cutting plate 13. The two ends of the slide rod 17 are fixedly connected to the two ends of the fixed frame 10.Here, a wear-resistant slide rail and slider are provided between the moving plate 9 and the inner wall of the material box 4 to ensure smooth sliding of the moving plate 9 and reduce friction loss. Screws A12 and B15 are connected to the fixed frame 10 and the cutting plate 13 respectively through bearings to ensure smooth rotation. The cutting plate 13 has a groove adapted to the slide rod 17, and a lubricating layer is provided in the groove, so that the cutting plate 13 can move flexibly on the slide rod 17. The moving plate 9 is adapted to the groove opened inside the material box 4. The cylinder 7, connecting plate 8, and moving plate 9 are symmetrically distributed on both sides of the material box 4. The size of the extrusion plate 6 matches the internal size of the material box 4. Multiple drainage holes are opened on both sides of the material box 4, and the position of the drainage holes corresponds to the water tank 18. Here, the size of the moving plate 9 is perfectly matched with the groove inside the material box 4, and a sealing strip is provided on the edge of the moving plate 9 to prevent raw material leakage. The symmetrically distributed cylinders 7, connecting plates 8, and moving plates 9 are connected by a synchronous control system to ensure that the moving plates 9 on both sides move synchronously. The surface of the extrusion plate 6 is flat and smooth, with minimal gap between it and the inner wall of the feed box 4, enabling efficient extrusion of the raw materials. The drainage holes of the feed box 4 are circular with a moderate diameter, ensuring rapid drainage of moisture while preventing raw material leakage. The drainage holes are connected to the water tank 18 via a guide channel to ensure smooth drainage. The symmetrical structural design and precise dimensional matching ensure that the raw materials are subjected to uniform force within the feed box 4, resulting in better extrusion molding. The rational layout of the drainage holes and water tank 18 effectively removes moisture from the raw materials, improving the dryness and stability of the feed pellets.
[0025] Example 2
[0026] Please see Figure 1 , Figure 5-6The support 2 has a fixedly connected screening disc 20 inside, and a motor C22 is fixedly connected to the lower surface of the screening disc 20. A stirring rod 23 is fixedly connected to the output end of the motor C22. A spring 24 is fixedly connected inside the feed box 4, and a top rod 25 is fixedly connected to one end of the spring 24. A top plate 26 is fixedly connected to one end of the top rod 25. Here, the screening disc 20 is located below the cutting plate 13 and has a mesh structure. The mesh size is designed according to the feed pellet specifications and is used to screen qualified feed pellets. Motor C22 is connected to stirring rod 23 via a reducer, allowing for adjustable stirring speed. Stirring rod 23 has multiple stirring blades to agitate and disperse feed particles during the screening process, preventing particle accumulation and accelerating moisture evaporation to reduce adhesion. Spring 24 is a high-strength compression spring, initially compressed to provide upward elasticity to top plate 26. This allows top plate 26 to apply pressure to moving plate 9, ensuring tight contact with the sliding groove of feed box 4, scraping away residual raw materials and reducing adhesion. The surface of top rod 25 is slidably connected to the interior of feed box 4, the surface of stirring rod 23 is rotatably connected to the inner surface of screening disc 20, and the surface of top plate 26 is slidably connected to the interior of feed box 4. Here, stirring rod 23 is connected to screening disc 20 via bearings with a waterproof and dustproof design to prevent feed particles and moisture from affecting rotational performance. Wear-resistant slide rails and sliders are also provided between top plate 26 and the inner wall of feed box 4 to ensure smooth sliding of top plate 26. Sealing rings are provided at the edges of top plate 26 to prevent raw material leakage from gaps.
[0027] Working Principle: First, cylinder 7 is activated. Both cylinders 7 synchronously drive connecting plate 8 and moving plate 9 to move horizontally within the feed hopper 4, stratifying the interior of the feed hopper 4 in preparation for subsequent feeding. After stratification, fly larvae biological feed raw materials are fed into the feed hopper 4. Driven by a hydraulic pump, hydraulic cylinder 5 precisely controls the extrusion plate 6 to move towards the raw materials and apply pressure, squeezing the raw materials within the feed hopper 4. During the squeezing process, excess moisture in the raw materials is discharged through drainage holes on both sides of the feed hopper 4, flowing into water troughs 18 surrounding the sides of the feed hopper 4, and then drained to an external wastewater treatment device via water pipes 19. Subsequently, the symmetrically distributed moving plates 9 extend from the feed hopper 4 under the drive of cylinder 7. At this time, the spring 24 inside the feed hopper 4 is initially compressed, applying elastic force to the top rod 25, which in turn causes the top plate 26 to continuously apply extrusion force to the moving plates 9, ensuring that the moving plates 9 remain in close contact with the inner sliding wall of the feed hopper 4. During the movement of the moving plates 9, raw materials adhering to the surface of the moving plates 9 can be scraped off, reducing the difficulty of subsequent cleaning. After the raw material is dehydrated, it falls to the ground. Hydraulic cylinder 5 then continues to push the extrusion plate 6 to extrude the material through the extrusion holes at the bottom of the feed hopper 4. Once the material is extruded, motor A11 starts, driving screw A12 to rotate. Through threaded transmission, cutting plate 13 moves horizontally along slide rod 17 to cut the formed feed into pellets of the required length. After cutting, motor B14 drives screw B15 to rotate, causing scraper 16 to move on cutting plate 13, scraping away any feed pellets adhering to the surface of cutting plate 13, reducing pellet adhesion and facilitating subsequent cleaning of cutting plate 13. The cut feed pellets fall onto sieve tray 20 located below cutting plate 13. The mesh of sieve tray 20 is designed according to the feed pellet specifications to screen out qualified feed pellets. Motor C22 drives the stirring rod 23 to rotate through the reducer, stirring, turning and dispersing the feed particles during the screening process. On the one hand, it prevents the particles from piling up, and on the other hand, it accelerates the evaporation of moisture from the particles, further reducing the sticking phenomenon. The debris in the particles will fall into the crushing disc 21 for recycling.
[0028] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A fly maggot bio-feed pelleting device comprising a base (1), characterized in that: A bracket (2) is fixedly connected to the surface of the base (1). A vertical plate (3) is fixedly connected to the surface of the bracket (2). A material box (4) is fixedly connected to the surface of the vertical plate (3). A hydraulic cylinder (5) is fixedly connected to the surface of the bracket (2). A pressing plate (6) is fixedly connected to the output end of the hydraulic cylinder (5). A cylinder (7) is fixedly connected to the side of the material box (4). A connecting plate (8) is fixedly connected to the output end of the cylinder (7). A moving plate (9) is fixedly connected to the surface of the connecting plate (8). The surface of the material box (4) is fixedly connected to the support (2). A fixed frame (10) is fixedly connected to the fixed frame (10), a motor A (11) is fixedly connected to the side of the fixed frame (10), a screw A (12) is fixedly connected to the output end of the motor A (11), a cutting plate (13) is threadedly connected to the surface of the screw A (12), a motor B (14) is fixedly connected to one end of the cutting plate (13), a screw B (15) is fixedly connected to the output end of the motor B (14), a scraper (16) is threadedly connected to the surface of the screw B (15), and a slide rod (17) is slidably connected inside the cutting plate (13).
2. The fly maggot bio-feed pelleting apparatus according to claim 1, wherein: A water tank (18) is fixedly connected to the side of the material box (4), a water pipe (19) is fixedly connected to the surface of the water tank (18), and a crushing plate (21) is fixedly connected to the surface of the base (1).
3. The fly maggot bio-feed pelleting apparatus according to claim 1, wherein: The surface of the moving plate (9) is slidably connected to the inside of the hopper (4). The two ends of the screw A (12) and screw B (15) are rotatably connected to the inside of the fixed frame (10) and the cutting plate (13), respectively. The surface of the cutting plate (13) is slidably connected to the inside of the fixed frame (10). The surface of the scraper (16) is slidably connected to the inside of the cutting plate (13). The two ends of the slide rod (17) are fixedly connected to the two ends of the fixed frame (10).
4. The fly maggot bio-feed pelleting apparatus according to claim 1, wherein: The movable plate (9) is adapted to the chute opened inside the material box (4). The cylinder (7), connecting plate (8) and movable plate (9) are symmetrically distributed on both sides of the material box (4). The size of the extrusion plate (6) matches the internal size of the material box (4). Multiple drainage holes are opened on both sides of the material box (4) and the position of the drainage holes corresponds to the water tank (18).
5. The fly maggot bio-feed pelleting apparatus according to claim 1, wherein: The support (2) is fixedly connected to a sieve plate (20), and a motor C (22) is fixedly connected to the lower surface of the sieve plate (20). A stirring rod (23) is fixedly connected to the output end of the motor C (22). A spring (24) is fixedly connected to the inside of the material box (4). A top rod (25) is fixedly connected to one end of the spring (24), and a top plate (26) is fixedly connected to one end of the top rod (25).
6. The fly maggot bio-feed pelleting apparatus according to claim 5, wherein: The surface of the top rod (25) is slidably connected to the inside of the material box (4), the surface of the stirring rod (23) is rotatably connected to the inner surface of the sieve plate (20), and the surface of the top plate (26) is slidably connected to the inside of the material box (4).