Feed pelleting equipment with automatic pressure control of flat die

Abstract

This utility model discloses a feed pelleting equipment with automatic flat die pressure control, including a pelleting tank. Multiple support legs are fixedly installed on the bottom wall of the pelleting tank. A feeding hopper is fixedly installed on the pelleting tank via a connecting mechanism. Two first mounting plates are fixedly installed on the inner wall of the feeding hopper. A filter plate is fixedly installed on the upper surface of each of the two first mounting plates via an elastic mechanism. A mounting frame is fixedly installed on the bottom wall of the filter plate. A first motor is fixedly installed on the outer wall of the feeding hopper. This utility model incorporates components such as a pressure sensor, a hydraulic cylinder, a multi-way valve, a connecting plate, and a second mounting plate. The pressure sensor captures pressure fluctuations, the multi-way valve adjusts the output force of the hydraulic cylinder, and the connecting plate drives the pressure roller to change the flat die pressure. The equipment adapts to the pelleting requirements of different raw materials, eliminates the need for manual frequency adjustments, improves automation and production efficiency, provides stable pelleting when processing multi-formula feeds, and has strong versatility.

Description

Technical Field

[0001] This utility model relates to the field of automatic control technology, and in particular to feed pelleting equipment with automatic control of flat die pressure. Background Technology

[0002] Feed pelleting equipment is a specialized device that processes powdered feed ingredients into pellets. It uses mechanical pressure to extrude the raw materials between a flat die and pressure rollers. This improves feed stability, facilitates storage and transportation, and enhances animal feed consumption. It is widely used in livestock farming and is continuously being upgraded towards automation and higher efficiency with technological advancements.

[0003] In the current booming development of modern animal husbandry, feed quality and production efficiency play a decisive role in the profitability of farming. As a key link in the feed production process, feed pelleting directly affects feed quality, storage time, transportation convenience, and the ease of animal consumption and digestibility. Early feed pelleting equipment was mostly manual or semi-automatic, with many shortcomings in flat die pressure control. Operators had to manually adjust the pressure based on experience, which resulted in poor pressure control accuracy, unstable feed pellet quality, excessive pressure leading to increased equipment wear and energy consumption, and insufficient pressure resulting in low pellet formation rate, substandard appearance and hardness, and easy breakage during storage and transportation. Therefore, it is necessary to redesign feed pelleting equipment with automatic flat die pressure control to address the above problems. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a feed pelleting equipment with automatic flat die pressure control.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A feed pelleting device with automatic pressure control for flat die includes a pelleting tank. Multiple support legs are fixedly installed on the bottom wall of the pelleting tank. A feeding hopper is fixedly installed on the pelleting tank via a connecting mechanism. Two first mounting plates are fixedly installed on the inner wall of the feeding hopper. A filter plate is fixedly installed on the upper surface of each of the two first mounting plates via an elastic mechanism. A mounting frame is fixedly installed on the bottom wall of the filter plate. A first motor is fixedly installed on the outer wall of the feeding hopper. A cam that mates with the mounting frame is fixedly installed on the output end of the first motor. A rotating shaft is rotatably installed inside the pelleting tank. A second motor connected to the rotating shaft is fixedly installed on the bottom wall of the pelleting tank. A first mounting sleeve is rotatably installed on the outer wall of the rotating shaft. A clamp is fixedly installed on the outer wall of the first mounting sleeve by bolts. The clamp is fixedly installed on the outer wall by two connecting rods. The granulation tank is equipped with two cutters. A guide block is slidably installed on the inner wall of the granulation tank through a guide groove. The end of the guide block is connected to the end of the connecting rod on the same side. A flat mold is fixedly installed on the outer wall of the rotating shaft. Two mounting grooves are opened on the upper surface of the flat mold. A pressure sensor is fixedly installed inside each of the two mounting grooves. A second mounting sleeve is rotatably installed on the outer wall of the rotating shaft. Two mounting shafts are fixedly installed on the outer wall of the second mounting sleeve. Pressure rollers are rotatably installed on the outer walls of the two mounting shafts. A limit plate is fixedly installed at the end of the rotating shaft. A connecting plate is fixedly installed at the end of each of the two mounting shafts. Two movable openings for the connecting plates are opened on the outer wall of the granulation tank. Two hydraulic cylinders are fixedly installed on the outer wall of the granulation tank through an installation mechanism. The telescopic ends of the two hydraulic cylinders are respectively fixedly connected to the bottom wall of the corresponding connecting plate.

[0006] Preferably, the connecting mechanism includes two connecting rods fixedly installed on the outer wall of the granulation tank, and the feeding hopper is fixedly installed at the ends of the two connecting rods.

[0007] Preferably, the elastic mechanism includes spring telescopic rods fixedly installed on the upper surface of the first mounting plate, and the telescopic ends of both spring telescopic rods are fixedly connected to the bottom wall of the filter plate.

[0008] Preferably, the mounting mechanism includes two second mounting plates fixedly mounted on the outer wall of the granulation tank, and the two hydraulic cylinders are respectively fixedly mounted on the second mounting plates.

[0009] Preferably, a multi-way valve is fixedly installed on the outer wall of the granulation tank via a third mounting plate, and the multi-way valve is connected to two hydraulic cylinders via two oil pipes respectively.

[0010] Preferably, the outer wall of the granulation tank is provided with a discharge opening, and a guide frame is fixedly installed inside the discharge opening.

[0011] The beneficial effects of this utility model are: 1. By incorporating components such as a pressure sensor, hydraulic cylinder, multi-way valve, connecting plate, and second mounting plate, the pressure sensor captures pressure fluctuations, the multi-way valve adjusts the output force of the hydraulic cylinder, and the connecting plate drives the pressure roller to change the pressure of the flat die. The equipment adapts to the pelleting requirements of different raw materials, eliminates the need for manual frequency adjustment, improves automation and production efficiency, provides stable pelleting when processing multi-formula feeds, and has strong versatility.

[0012] 2. By setting up components such as spring telescopic rods, a first mounting plate, a cam, a mounting frame, and a first motor, the first motor is started to rotate the cam, which, together with the mounting frame, moves the filter plate up and down. The spring telescopic rod vibrates, compresses, and rebounds with the filter plate to reduce vibration and impact. The filter plate blocks impurities to protect the equipment, ensuring subsequent granulation pressure control and particle quality, and indirectly improving the overall stability of the equipment. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the feed pelleting equipment with automatic flat die pressure control proposed in this utility model. Figure 2 This is a rear view structural diagram of the feed pelleting equipment with automatic flat die pressure control proposed in this utility model. Figure 3 for Figure 1 A schematic diagram of the vertical section structure; Figure 4 This is a top cross-sectional view of the feed pelleting equipment with automatic flat die pressure control proposed in this utility model. Figure 5 for Figure 3 Enlarged structural diagram at point A; Figure 6 for Figure 3 Enlarged schematic diagram of the structure at point B.

[0014] In the diagram: 1. Granulation tank, 2. Connecting rod, 3. Feeding hopper, 4. First mounting plate, 5. Spring telescopic rod, 6. Filter plate, 7. Mounting frame, 8. First motor, 9. Cam, 10. Rotating shaft, 11. Second motor, 12. First mounting sleeve, 13. Clamp, 14. Connecting rod, 15. Cutter, 16. Flat mold, 17. Pressure sensor, 18. Second mounting sleeve, 19. Pressure roller, 20. Limiting plate, 21. Connecting rod, 22. Second mounting plate, 23. Hydraulic cylinder, 24. Third mounting plate, 25. Multi-way valve, 26. Guide frame. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0016] Reference Figure 1-5The feed pelleting equipment with automatic pressure control of the flat die includes a pelleting tank 1. Multiple support legs are fixedly installed on the bottom wall of the pelleting tank 1. A feeding hopper 3 is fixedly installed on the pelleting tank 1 via a connecting mechanism. The connecting mechanism includes two connecting rods 2 fixedly installed on the outer wall of the pelleting tank 1. The feeding hopper 3 is fixedly installed at the ends of the two connecting rods 2. Two first mounting plates 4 are fixedly installed on the inner wall of the feeding hopper 3. These two first mounting plates 4 are symmetrically distributed. A filter plate 6 is fixedly installed on the upper surface of each of the two first mounting plates 4 via an elastic mechanism. The main function of the filter plate 6 is to filter the feed raw materials entering the feeding hopper 3, removing large impurities and... To ensure the smooth progress of the subsequent granulation process, the elastic mechanism includes spring telescopic rods 5 fixedly installed on the upper surface of the first mounting plate 4. The telescopic ends of the two spring telescopic rods 5 are fixedly connected to the bottom wall of the filter plate 6. This elastic connection method allows the filter plate 6 to vibrate up and down within a certain range, improving the filtration efficiency. A mounting frame 7 is fixedly installed on the bottom wall of the filter plate 6, and a first motor 8 is fixedly installed on the outer wall of the feeding hopper 3. A cam 9 that cooperates with the mounting frame 7 is fixedly installed on the output end of the first motor 8. The cam 9 can drive the filter plate 6 to move up and down reciprocally, further enhancing the vibration effect of the filter plate 6 and ensuring more thorough filtration.

[0017] A rotating shaft 10 is rotatably mounted inside the granulation tank 1. A second motor 11, connected to the rotating shaft 10, is fixedly mounted on the bottom wall of the granulation tank 1. A first mounting sleeve 12 is rotatably mounted on the outer wall of the rotating shaft 10. A clamp 13 is bolted to the outer wall of the first mounting sleeve 12. This bolted connection method facilitates disassembly and allows for quick adjustment of the position of the clamp 13 on the first mounting sleeve 12. Two cutters 15 are fixedly mounted on the outer wall of the clamp 13 via two connecting rods 14. A guide block is slidably mounted on the inner wall of the granulation tank 1 via a guide groove. The end of the guide block is connected to the end of the connecting rod 14 on the same side. The guide block slides within the guide groove, providing guidance for the position adjustment of the cutters 15. The cutting blade 15 can stably perform cutting operations. A flat die 16 is fixedly installed on the outer wall of the rotating shaft 10. The flat die 16 is an important component of feed pelleting. Two mounting grooves are opened on the upper end face of the flat die 16. Pressure sensors 17 are fixedly installed inside the two mounting grooves. The pressure sensors 17 can monitor the pressure on the flat die 16 in real time during the pelleting process and transmit the pressure signal to the control system to realize automatic control of the pelleting pressure. A second mounting sleeve 18 is rotatably installed on the outer wall of the rotating shaft 10. Two mounting shafts are fixedly installed on the outer wall of the second mounting sleeve 18. Pressure rollers 19 are rotatably installed on the outer wall of both mounting shafts. A limit plate 20 is fixedly installed at the end of the rotating shaft 10.

[0018] Both mounting shafts are fixedly mounted with connecting plates 21 at their ends. Two movable openings are provided on the outer wall of the granulation tank 1 to accommodate the connecting plates 21. The connecting plates 21 can move up and down within these openings. Two hydraulic cylinders 23 are fixedly mounted on the outer wall of the granulation tank 1 via a mounting mechanism. The mounting mechanism includes two second mounting plates 22 fixedly mounted on the outer wall of the granulation tank 1. The two hydraulic cylinders 23 are respectively fixedly mounted on the second mounting plates 22, which provide a stable mounting base for the hydraulic cylinders 23. The telescopic ends of the two hydraulic cylinders 23 are respectively fixedly connected to the bottom wall of the corresponding connecting plate 21. Through the telescopic movement of the hydraulic cylinders 23, the granulation tank 1 can be... The moving connecting plate 21 moves up and down, thereby adjusting the distance between the pressure roller 19 and the flat die 16 to change the pelleting pressure. A multi-way valve 25 is fixedly installed on the outer wall of the pelleting tank 1 through the third mounting plate 24. The multi-way valve 25 is connected to the connection ports of two hydraulic cylinders 23 through two oil pipes respectively. The multi-way valve 25 can control the flow and direction of hydraulic oil entering the two hydraulic cylinders 23, thereby achieving precise control of the extension and retraction movement of the hydraulic cylinders 23. A discharge opening is opened on the outer wall of the pelleting tank 1. A guide frame 26 is fixedly installed inside the discharge opening. The finished feed pellets are discharged through the discharge opening and enter the subsequent collection device under the guidance of the guide frame 26.

[0019] In use, the operator can loosen the bolts on the clamp 13, adjust the distance between the cutter 15 and the flat die 16 according to the required pellet length, tighten the bolts, and then pour the feed material to be pelleted into the feeding hopper 3. The first motor 8 is started, and the cam 9 rotates with the motor and periodically contacts the mounting frame 7. When the protruding part of the cam 9 pushes up the mounting frame 7, the filter plate 6 moves upward and stretches the spring telescopic rod 5. After the protruding part of the cam 9 leaves, the spring telescopic rod 5 resets, causing the filter plate 6 to fall, creating continuous vibration. During the vibration, the raw material passes through the filter plate 6 for screening, and impurities and large particles are intercepted, resulting in qualified feed. The raw materials fall evenly into the granulation tank 1. At the same time, the second motor 11 is started, and its output end drives the rotating shaft 10 to rotate. The flat mold 16 fixed on the outer wall of the rotating shaft 10 rotates with the shaft. After the raw materials fall between the flat mold 16 and the pressure roller 19, they are driven by the rotating flat mold 16 to the bottom of the pressure roller 19. Under pressure, they pass through the die holes on the surface of the flat mold 16 to form columnar particles. When the columnar particles are squeezed out from the die holes, as the flat mold 16 rotates, the fixed cutter 15 cuts them into particles of a set length. The cut particles fall into the guide frame 26 through the discharge opening on the outer wall of the granulation tank 1 and are guided to the collection device by the guide frame 26. Pressure sensor 17 monitors pressure data in real time and transmits the pressure signal to the control system in real time. When the pressure deviates from the set value, the multi-way valve 25 will automatically adjust the oil pressure of the hydraulic cylinder 23 and control the output force of the hydraulic cylinder 23. The extension end of the hydraulic cylinder 23 controls the pressure roller 19 to move closer to or away from the flat mold 16 through the connecting plate 21 until the pressure roller 19 contacts the surface of the flat mold 16 and forms a suitable pressure.

[0020] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A feed pelleting device with automatic pressure control for flat die, comprising a pelleting tank (1), characterized in that, The granulation tank (1) has multiple support legs fixedly installed on its bottom wall. The granulation tank (1) has a feeding hopper (3) fixedly installed on its bottom wall via a connecting mechanism. Two first mounting plates (4) are fixedly installed on the inner wall of the feeding hopper (3). Filter plates (6) are fixedly installed on the upper surfaces of the two first mounting plates (4) via an elastic mechanism. A mounting frame (7) is fixedly installed on the bottom wall of the filter plate (6). A first motor (8) is fixedly installed on the outer wall of the feeding hopper (3). A cam (9) that cooperates with the mounting frame (7) is fixedly installed on the output end of the first motor (8). A rotating shaft (10) is rotatably installed inside the granulation tank (1). A second motor (11) connected to the rotating shaft (10) is fixedly installed on the bottom wall of the granulation tank (1). A first mounting sleeve (12) is rotatably installed on the outer wall of the rotating shaft (10). A clamp (13) is fixedly installed on the outer wall of the first mounting sleeve (12) via bolts. Two cutters are fixedly installed on the outer wall of the clamp (13) via two connecting rods (14). 15) A guide block is slidably installed on the inner wall of the granulation tank (1) through a guide groove. The end of the guide block is connected to the end of the connecting rod (14) on the same side. A flat mold (16) is fixedly installed on the outer wall of the rotating shaft (10). Two mounting grooves are opened on the upper surface of the flat mold (16). A pressure sensor (17) is fixedly installed inside the two mounting grooves. A second mounting sleeve (18) is rotatably installed on the outer wall of the rotating shaft (10). Two mounting shafts are fixedly installed on the outer wall of the second mounting sleeve (18). A pressure roller (19) is rotatably installed on the outer wall of the two mounting shafts. A limit plate (20) is fixedly installed at the end of the rotating shaft (10). A connecting plate (21) is fixedly installed at the end of the two mounting shafts. Two movable openings that cooperate with the connecting plate (21) are opened on the outer wall of the granulation tank (1). Two hydraulic cylinders (23) are fixedly installed on the outer wall of the granulation tank (1) through an installation mechanism. The telescopic ends of the two hydraulic cylinders (23) are fixedly connected to the bottom wall of the corresponding connecting plate (21).

2. The feed pelleting equipment with automatic flat die pressure control according to claim 1, characterized in that, The connecting mechanism includes two connecting rods (2) fixedly installed on the outer wall of the granulation tank (1), and the feeding hopper (3) is fixedly installed at the ends of the two connecting rods (2).

3. The feed pelleting equipment with automatic flat die pressure control according to claim 2, characterized in that, The elastic mechanism includes spring telescopic rods (5) fixedly installed on the upper surface of the first mounting plate (4), and the telescopic ends of the two spring telescopic rods (5) are fixedly connected to the bottom wall of the filter plate (6).

4. The feed pelleting equipment with automatic flat die pressure control according to claim 3, characterized in that, The installation mechanism includes two second mounting plates (22) fixedly installed on the outer wall of the granulation tank (1), and two hydraulic cylinders (23) fixedly installed on the second mounting plates (22).

5. The feed pelleting equipment with automatic flat die pressure control according to claim 4, characterized in that, The outer wall of the granulation tank (1) is fixedly installed with a multi-way valve (25) via a third mounting plate (24). The multi-way valve (25) is connected to the connection ports of two hydraulic cylinders (23) via two oil pipes.

6. The feed pelleting equipment with automatic flat die pressure control according to claim 5, characterized in that, The outer wall of the granulation tank (1) is provided with a discharge opening, and a guide frame (26) is fixedly installed inside the discharge opening.

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