A feed mixing and blending device

Abstract

The application provides a feed stirring and mixing device, and belongs to the technical field of feed processing. The device comprises a mixing barrel, a circulating pipeline and a spiral lifting mechanism arranged in the middle of the mixing barrel. The spiral lifting mechanism is used for lifting the feed at the bottom of the mixing barrel upward through the circulating pipeline. A fixed cone hopper and a movable cone hopper are arranged at the open bottom of the mixing barrel. Both the fixed cone hopper and the movable cone hopper can be penetrated by the circulating pipeline. A premixing cavity is reserved between the fixed cone hopper and the movable cone hopper. A plurality of spiral blades are arranged in the circumferential direction at the bottom of the fixed cone hopper. A plurality of feeding pipes are arranged on the fixed cone hopper. A feeding opening and a circulating opening are arranged at the bottom of the circulating pipeline. A plugging piece is arranged at the bottom of the mixing barrel. A driving piece is arranged between the mixing barrel and the movable cone hopper. The application can shorten the overall cycle of feed mixing work, and can also break the hierarchical separation caused by the difference in particle size to a certain extent, so that the feed with different particle sizes is more uniformly distributed in the mixing area.

Description

Technical Field

[0001] This application relates to the field of feed processing technology, specifically to a feed mixing and stirring device. Background Technology

[0002] Feed is a substance that provides animals with the various nutrients necessary for their life activities. It is mainly made from plant-based and animal-based raw materials through processes such as selection, processing, and mixing. Its purpose is to ensure that animals receive sufficient energy, protein, fat, carbohydrates, vitamins, minerals, and other essential nutrients at different stages of growth, reproduction, or production, thereby promoting their healthy growth, improving production performance, and increasing breeding efficiency. Different types of animals have different nutritional needs. For example, meat livestock require feed with a high proportion of energy and protein to promote muscle and meat growth; dairy cows need feed rich in fiber and protein to support milk production; while the feed formulation for poultry and aquatic animals emphasizes rapid growth and efficient nutrient supply. In addition, the production stage also affects the composition of feed; for example, the nutritional needs of animals in the growing, gestation, or lactation periods differ significantly. Furthermore, feed is also adjusted according to different uses, such as fortified feed to improve animal immunity or formulated feed to improve feed conversion efficiency.

[0003] In feed processing, specialized mixing equipment is often used to thoroughly mix various feed ingredients. The main purpose of this step is to ensure that the nutrients in different raw materials are evenly distributed throughout the feed system, thus avoiding nutritional deviations and imbalances caused by uneven composition. This not only helps meet the nutritional needs of animals at different growth stages, promoting healthy growth and efficient production, but also ensures that the nutritional composition of each feed portion is consistent, guaranteeing feed quality stability. At the same time, thoroughly mixed feed has better palatability and can attract animals' appetites, reducing picky eating and uneaten feed, thereby increasing feed intake. Furthermore, uniformly mixed feed ensures that animals ingest a balanced amount of nutrients, helping to improve digestion and absorption, enhance immunity, and reduce disease incidence.

[0004] Referring to Chinese patent application CN119455737A, published on February 18, 2025, entitled "A Mixing Method and a Mixing Apparatus," the mixing apparatus includes a housing, a cooling airflow power assembly, and a vacuum assembly. The housing contains a mixing chamber with an inlet connected to the mixing chamber. The cooling airflow power assembly is connected to the mixing chamber to provide cooling airflow. The vacuum assembly is connected to the mixing chamber to evacuate it. The mixing apparatus also includes a lifting channel disposed within the mixing chamber, with a lifting screw rotatably disposed therein. The top of the lifting channel has an outlet connected to the mixing chamber, and a spreading disc is provided on the outer periphery of the lifting channel, positioned below the outlet. The spreading disc is rotatable relative to the lifting screw. This application provides a vacuum mixing environment for the powder by evacuating the mixing device, allowing powder particles of different sizes to fall and mix at the same speed, thereby improving the uniformity, stability, and homogeneity of the mixture, shortening the mixing time, and increasing the mixing efficiency. On the other hand, the powder can be cooled during the mixing process, providing a low-temperature environment to prevent the solid binder from becoming sticky at high temperatures, which could lead to the powder particles clumping or becoming fibrous, thus achieving a non-fibrous mixing effect and improving the mixing efficiency.

[0005] Referring to the above technical solutions, in the mixing process using a vertical feed mixer, the traditional design mainly relies on gravity to allow the feed to spread and flow naturally. However, due to the limitations of gravity, feed particles mainly rely on natural falling and multiple lifting cycles to achieve thorough mixing. This method often requires a long cycle to complete the thorough mixing of the feed, resulting in relatively low overall production efficiency. In addition, during the process of the feed being lifted to a high point for free fall, different types of feed usually have certain particle size differences. Larger feed particles, due to their greater inertia, tend to concentrate in the lower area during the fall, while smaller feed particles are more likely to remain in the upper layer or slide along the edge, forming obvious particle size stratification, which affects the overall uniformity of the feed. Summary of the Invention

[0006] In view of this, this application provides a feed mixing device, which is mainly used to solve the problems that feed requires a long cycle to be fully mixed and that feed is prone to stratification during the falling process due to differences in particle size.

[0007] To address the aforementioned technical problems, this application provides a feed mixing device, comprising a mixing tank and a circulation pipe and a spiral lifting mechanism disposed in the middle thereof. The spiral lifting mechanism is used to lift the feed located at the bottom of the mixing tank upward through the circulation pipe. A fixed cone hopper and a movable cone hopper are disposed at the bottom opening of the mixing tank. The movable cone hopper is rotatably connected to the bottom of the mixing tank and located below the fixed cone hopper. Both the fixed cone hopper and the movable cone hopper can be penetrated by the circulation pipe. A premixing chamber is maintained between the fixed cone hopper and the movable cone hopper. Multiple spiral blades located inside the premixing chamber are arranged in a circumferential array at the bottom of the fixed cone hopper. Multiple feed pipes are disposed on the fixed cone hopper, and all feed pipes are connected to the premixing chamber. The bottom of the circulation pipe is provided with a feeding port that can communicate with the premixing chamber and a circulation port that can communicate with the inner cavity of the fixed cone hopper. A sealing element that can block the feeding port is disposed at the bottom of the mixing tank. A driving element is disposed between the mixing tank and the movable cone hopper, and the driving element is used to rotate the movable cone hopper.

[0008] By adopting the above technical solution, during feed mixing, the operator first feeds various types and particle sizes of feed ingredients into the premixing chamber through the feed pipe. After entering the premixing chamber, the feed naturally falls onto the inner wall surface of the moving cone hopper under gravity and gradually slides down the cone wall. During this process, the drive unit operates and drives the moving cone hopper to rotate continuously, creating a relative rotation between the moving cone hopper and the stationary cone hopper. Through this relative motion, the spiral blades can perform preliminary stirring and mixing of the feed in the premixing chamber. Compared to the method of stirring stationary feed by rotating spiral blades, because the moving cone hopper is rotating, the feed entering through the feed pipe can be evenly distributed around the circumference of the moving cone hopper, preventing excessive accumulation of feed at a certain point inside the moving cone hopper, which would affect the subsequent mixing effect. This achieves uniform dispersion of feed particles of different densities and particle sizes in the premixing chamber, reducing the need for repeated feed lifting, thereby saving time and energy. After the feed in the premixing chamber is thoroughly mixed, it enters the circulation pipe through the feed inlet. At this point, the screw conveyor mechanism continuously lifts the feed upwards along the inner cavity of the circulation pipe. As the feed flows continuously through the circulation pipe, a continuous circulation flow is formed. This flow ensures that the feed passes through the entire mixing system repeatedly, undergoing multiple redispersing and recombination processes to achieve a more uniform and thorough mixing effect.

[0009] Optionally, the sealing component includes a sealing ring sleeved on the outside of the circulation pipe, and a cylinder capable of driving the sealing ring to rise and fall is provided on the support truss at the bottom of the mixing tank.

[0010] By adopting the above technical solution, after the feed has completely entered the circulation pipeline, the cylinder drives the sealing ring to move vertically, which can block the feeding port and prevent the feed from flowing out of this outlet. This ensures that the feed maintains a good closed state during the circulation process, avoids feed leakage, and prevents it from affecting the final mixing ratio, thereby improving the final quality of the feed mixing work.

[0011] Optionally, the driving component includes a geared motor mounted on the support truss at the bottom of the mixing hopper, and a large-diameter geared ring is fixedly sleeved on the outside of the moving cone hopper. The geared motor can drive the large-diameter geared ring to rotate through gear transmission.

[0012] By adopting the above technical solution, the geared motor can drive the large-diameter gear ring to rotate through gear transmission, thereby causing the moving cone bucket to rotate together. This achieves the relative rotation of the moving cone bucket and the fixed cone bucket, enabling the premixing of feed to proceed normally.

[0013] Optionally, the spiral lifting mechanism includes an auger rotatably connected to the middle of the mixing tank, and the auger can pass through the circulation pipe. A servo motor installed at the top of the mixing tank can drive the auger to rotate through a belt pulley.

[0014] By adopting the above technical solution, when the servo motor drives the auger to rotate, it can lift the feed located at the bottom of the mixing tank upward through the circulation pipe. When the feed reaches the top opening of the circulation pipe, it will fall freely outside the circulation pipe under the action of gravity. At the same time, with the continuous cooperation of the auger and the circulation pipe, the feed can be mixed multiple times.

[0015] Optionally, a dispersing mechanism is provided between the mixing tank and the fixed cone hopper to further disperse the feed lifted to the top of the mixing tank's inner cavity.

[0016] Optionally, the dispersing mechanism includes multiple hollow cylinders arranged in an array on a fixed cone hopper. Each hollow cylinder has a vertical rod that can extend into the inner cavity of the mixing tank. Each vertical rod has multiple discs, and the discs on each vertical rod are staggered in the vertical direction.

[0017] By adopting the above technical solution, as the feed is continuously lifted to the top of the circulation pipe by the auger and falls downwards, the disc can interfere with and block the feed in its falling path, changing the feed's trajectory. This causes the feed to bounce, collide, and scatter as it falls, making the feed's trajectory more complex. This avoids the feed from naturally grading by gravity and causing stratification, effectively improving the overall mixing uniformity of the feed, making the mixing process more thorough and uniform, and thus improving the mixing quality of the feed.

[0018] Optionally, the hollow cylinder is provided with a spiral groove inside, and the upright is provided with a slider that matches the spiral groove. A tension spring is provided between the transition plate rotatably connected to the hollow cylinder and the upright. Under the action of the tension spring, the upright always has a downward tendency. The moving cone bucket is provided with multiple cylindrical cams with wavy end faces inside, and the bottom of the upright is provided with a ball that can abut against the wavy end face of the cylindrical cam.

[0019] By adopting the above technical solution, during the process of using a disc-shaped plate to disrupt the feed's falling path, the driving components work together to keep the moving cone bucket and cylindrical cam rotating. As the cylindrical cam rotates, the contact point between the ball and the cam continuously changes, allowing the upright to reciprocate up and down inside the hollow cylinder. Simultaneously, with the cooperation of the spiral groove and the slider, the upright can rotate while rising and falling, achieving a spiral lifting and lowering motion. In this state, the disc-shaped plate on the upright can intercept and guide the falling feed while further stirring and mixing it, effectively disturbing the feed's falling path and shortening the cycle required to reach the ideal mixing state.

[0020] Optionally, a rubber sleeve is provided on the outside of the transition plate, and the rubber sleeve can be fitted over the outside of the hollow cylinder.

[0021] By adopting the above technical solution, during the spiral lifting and lowering movement of the upright, the rubber sleeve can prevent external impurities or dust from entering the connection area between the upright and the hollow cylinder. At the same time, the rubber sleeve can also prevent feed from entering between the upright and the hollow cylinder through the gap, so as to avoid the feed from causing blockage between the upright and the hollow cylinder, and ensure that the lifting and lowering movement of the upright is smooth and reliable.

[0022] Optionally, the cylindrical cams are all fixedly connected inside the moving cone hopper by a shim column, and a gap is maintained between the bottom surface of the cylindrical cam and the inner wall surface of the moving cone hopper for feed to pass through.

[0023] By adopting the above technical solution, with the assistance of the raised column, when the feed enters the premixing chamber, it can move downward through the gap between the cylindrical cam and the moving cone bucket, so as to prevent the feed from being blocked by the cylindrical cam and unable to enter the premixing chamber smoothly.

[0024] Optionally, the spiral blades are intermittently arranged at the bottom of the fixed cone bucket, and the spiral blades are provided with clearance grooves that match the upright and the cylindrical cam, and the spiral blades can abut against the outer surface of the cylindrical cam.

[0025] By adopting the above technical solution, when the moving cone bucket rotates, the clearance groove can prevent rotational interference between the spiral blades and the upright or cylindrical cam. In addition, the spiral blades can also scrape the outer surface of the cylindrical cam to prevent a large amount of feed from adhering to the surface of the cylindrical cam, thereby ensuring that the feed can enter the subsequent mixing process intact and guaranteeing the final feed mixing ratio.

[0026] In summary, compared with the prior art, this application includes at least one of the following beneficial technical effects:

[0027] 1. When carrying out feed mixing, it can perform preliminary premixing of various feeds during the feeding stage, so that feeds of different densities and particle sizes are evenly dispersed in the premixing chamber, ensuring that various feeds can achieve a high degree of uniformity in the early stage, reducing the number of times feeds need to be lifted in the subsequent mixing process, thereby shortening the overall cycle of feed mixing and improving work efficiency.

[0028] 2. During the process of lifting and allowing the feed to fall freely to complete the mixing, the disc-shaped plate can be used to turbulently block the feed, so that the feed is continuously broken up during the falling, collision and rebound process, breaking the stratification caused by the difference in particle size, and making the feed of different particle sizes form a more uniform distribution in the mixing area, thereby improving the fullness and uniformity of the mixing process.

[0029] 3. When using a disc to interfere with the feed's falling path, the disc can be in a reciprocating lifting and alternating forward and reverse state. This not only effectively breaks down the natural stratification caused by differences in particle size and density, but also further stirs and mixes the feed, increasing the contact frequency and mixing intensity between feed particles, thus ensuring the final quality of the mixing process. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of a feed mixing device according to this application;

[0031] Figure 2 This is a cross-sectional view of the mixing tank of this application;

[0032] Figure 3 For this application Figure 2 A magnified view of a portion of region A in the middle;

[0033] Figure 4 This is a structural schematic diagram of the circulation pipeline and sealing component of this application;

[0034] Figure 5 This is a schematic diagram of the structure of the fixed cone bucket in this application;

[0035] Figure 6 This is a schematic diagram of the structure of the moving cone bucket in this application;

[0036] Figure 7 This is a sectional view of the hollow tube and uprights of this application;

[0037] Figure 8 This is an exploded view of the hollow cylinder and upright pole of this application.

[0038] Explanation of reference numerals in the attached drawings: 1. Mixing tank; 11. Circulation pipe; 111. Feed port; 112. Circulation port; 12. Screw lifting mechanism; 121. Screw conveyor; 122. Servo motor; 2. Fixed cone bucket; 21. Spiral blade; 211. Clearance groove; 3. Moving cone bucket; 31. Drive component; 311. Gear motor; 312. Large diameter gear ring; 4. Premixing chamber; 41. Feed pipe; 5. Sealing component; 51. Sealing ring; 52. Cylinder; 6. Dispersion mechanism; 61. Hollow cylinder; 62. Vertical rod; 63. Disc-shaped plate; 64. Spiral chute; 65. Slider; 66. Transition plate; 67. Tension spring; 68. Cylindrical cam; 69. Ball bearing; 7. Rubber sleeve; 8. Elevating column. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the following will be combined with the embodiments of this application. Figures 1-8 The technical solutions of the embodiments of this application are clearly and completely described herein. All other embodiments obtained by those skilled in the art based on the described embodiments are within the scope of protection of this application.

[0040] Reference Figure 1 and Figure 2 This embodiment provides a feed mixing device, including a mixing tank 1 and a circulation pipe 11, a screw lifting mechanism 12, and a feeding premixing mechanism disposed therein. The screw lifting mechanism 12 includes an auger 121 and a servo motor 122. The auger 121 is rotatably connected to the middle of the mixing tank 1 and can pass through the circulation pipe 11. The servo motor 122 is located at the top of the mixing tank 1 and can drive the auger 121 to rotate via a belt pulley. When the auger 121 rotates, it can lift the feed located at the bottom of the mixing tank 1 upward through the circulation pipe 11.

[0041] Among them, reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5The feeding and premixing mechanism includes a fixed cone hopper 2, a moving cone hopper 3, a premixing chamber 4, spiral blades 21, a feed pipe 41, a feeding port 111, a circulation port 112, a sealing component 5, and a driving component 31. The fixed cone hopper 2 is located at the bottom opening of the mixing tank 1. The moving cone hopper 3 is rotatably connected to the bottom of the mixing tank 1 and is located below the fixed cone hopper 2. Both the fixed cone hopper 2 and the moving cone hopper 3 can be penetrated by the circulation pipe 11. The premixing chamber 4 is located between the fixed cone hopper 2 and the moving cone hopper 3. Multiple spiral blades 21 are arranged in a circumferential array at the bottom of the fixed cone hopper 2, and all spiral blades 21 are located inside the premixing chamber 4. Multiple feed pipes 41 are arranged on the fixed cone hopper 2 and communicate with the premixing chamber 4. The bottom of the circulation pipe 11 has a feeding port 111 that communicates with the premixing chamber 4 and a circulation port 112 that communicates with the inner cavity of the fixed cone hopper 2. The sealing component 5 is... At the bottom of the mixing tank 1, the sealing component 5, which can block the feed inlet 111, includes a sealing ring 51 and a cylinder 52. The sealing ring 51 is sleeved on the outside of the circulation pipe 11, and the cylinder 52 is set on the support truss at the bottom of the mixing tank 1 and can drive the sealing ring 51 to rise and fall. The driving component 31 is set between the mixing tank 1 and the moving cone hopper 3 and is used to make the moving cone hopper 3 rotate. The driving component 31 includes a geared motor 311 and a large diameter gear ring 312. The geared motor 311 is set on the support truss at the bottom of the mixing tank 1, and the large diameter gear ring 312 is fixedly sleeved on the outside of the moving cone hopper 3. The geared motor 311 can drive the large diameter gear ring 312 to rotate through gear transmission.

[0042] When mixing feed, different types of feed are first fed into the premixing chamber 4 through the feed pipe 41. Under gravity, the feed falls onto the inner wall of the moving cone hopper 3. Then, the reduction motor 311 drives the large-diameter gear ring 312 to rotate via gear transmission, causing the moving cone hopper 3 to rotate along with the feed inside. Under the relative rotation of the moving cone hopper 3 and the fixed cone hopper 2, the spiral blades 21 can initially stir and mix the feed inside the premixing chamber 4, ensuring a relatively uniform distribution of feeds of different densities and particle sizes during the feeding stage, thus reducing the number of repeated lifting operations in the subsequent mixing process. Furthermore, compared to stirring feed in a stationary state by rotating the spiral blades 21, the relative position of the feed pipe 41 and the moving cone hopper 3 continuously changes as the moving cone hopper 3 rotates. This allows the feed entering through the feed pipe 41 to be evenly distributed circumferentially within the moving cone hopper 3, preventing excessive accumulation of a particular type of feed at a single point inside the moving cone hopper 3, which could affect the subsequent mixing effect. During the process of feed entering the circulation pipe 11 from the feed inlet 111 inside the premixing chamber 4, the servo motor 122 drives the auger 121 to rotate via belt pulley transmission, using the auger 121 to lift the feed upwards along the circulation pipe 11. After the feed inside the premixing chamber 4 has completely entered the circulation pipe 11 from the feed inlet 111, the cylinder 52 drives the sealing ring 51 to move vertically, causing the sealing ring 51 to block the feed inlet 111. The feed lifted to the top of the circulation pipe 11 by the auger 121 will fall downwards from the outside of the circulation pipe 11 and re-enter the inner cavity of the circulation pipe 11 through the circulation port 112. As the auger 121 continues to rotate, the feed can be repeatedly lifted by the auger 121 to complete the feed mixing process.

[0043] Reference Figure 2 and Figure 5 A dispersing mechanism 6 is provided between the mixing tank 1 and the fixed cone hopper 2 to further disperse the feed lifted to the top of the inner cavity of the mixing tank 1. The dispersing mechanism 6 includes a hollow cylinder 61, uprights 62, and discs 63. Multiple hollow cylinders 61 are arranged in an array on the fixed cone hopper 2. Each hollow cylinder 61 has an upright 62 that can extend into the inner cavity of the mixing tank 1. Multiple discs 63 are provided on each upright 62, and the discs 63 on each upright 62 are staggered in the vertical direction.

[0044] As the feed is lifted to the top of the circulation pipe 11 by the auger 121 and falls downwards from the outside of the circulation pipe 11, the disc 63 can interfere with the falling path of the feed, change the falling direction and speed of the feed, and force the feed to revert, collide and disperse (the movement trajectory of feed of different particle sizes will change after hitting the disc 63, which can reduce the tendency of feed to be classified by gravity compared with the original free fall action), thereby reducing the possibility of stratification of feed of different particle sizes when falling to the bottom of the mixing tank 1, and improving the final quality and efficiency of feed mixing.

[0045] Additionally, refer to Figure 6 , Figure 7 and Figure 8 The hollow cylinder 61 is provided with a spiral groove 64 inside, and the upright rod 62 is provided with a slider 65 that matches the spiral groove 64. A tension spring 67 is provided between the transition plate 66 rotatably connected to the hollow cylinder 61 and the upright rod 62. Under the action of the tension spring 67, the upright rod 62 always has a downward tendency. The moving cone hopper 3 is provided with multiple cylindrical cams 68 with wavy end faces inside, and the bottom of the upright rod 62 is provided with a ball 69 that can abut against the wavy end face of the cylindrical cam 68.

[0046] When the disc 63 interferes with the falling path of the feed, the moving cone hopper 3 and the cylindrical cam 68 are kept rotating by the drive component 31. During this process, the contact point between the ball 69 and the cylindrical cam 68 changes continuously. When the ball 69 contacts the crest of the wavy end face of the cylindrical cam 68, the upright 62 overcomes the tension of the tension spring 67 and rises along the hollow cylinder 61. Conversely, the upright 62 will move downward along the hollow cylinder 61 under the tension of the tension spring 67, causing the ball 69 to contact the trough of the wavy end face of the cylindrical cam 68. In addition, due to the presence of the spiral groove 64 and the slider 65, the upright 62 will also rotate when it rises and falls inside the hollow cylinder 61 (i.e., the rising and falling action of the upright 62 is spiral rising and falling). This allows the disc 63 on the upright 62 to further stir and mix the feed while intercepting the falling feed, greatly reducing the number of cycles required to reach the ideal mixing state, thereby improving the overall mixing efficiency of the feed.

[0047] Reference Figure 7 and Figure 8 A rubber sleeve 7 is provided on the outside of the transition plate 66, and the rubber sleeve 7 can be fitted onto the outside of the hollow cylinder 61.

[0048] During the spiral lifting and lowering process of the upright 62, the rubber sleeve 7 can provide a certain sealing and protection for the connection between the upright 62 and the hollow cylinder 61, so as to prevent feed from entering the gap between the upright 62 and the hollow cylinder 61 and affecting the normal movement of the upright 62.

[0049] Reference Figure 6 The cylindrical cams 68 are all fixedly connected to the inside of the moving cone bucket 3 by the shim column 8, and a gap is reserved between the bottom surface of the cylindrical cams 68 and the inner wall surface of the moving cone bucket 3 for feed to pass through.

[0050] With the participation of the elevating column 8, when the feed enters the premixing chamber 4, it can move towards the feeding port 111 through the gap between the cylindrical cam 68 and the moving cone hopper 3, so as to prevent the feed from being blocked by the cylindrical cam 68 and unable to be fed normally.

[0051] Reference Figure 5 and Figure 6 The spiral blades 21 are intermittently arranged at the bottom of the fixed cone bucket 2. The spiral blades 21 are provided with clearance grooves 211 that match the upright 62 and the cylindrical cam 68, and the spiral blades 21 can abut against the outer surface of the cylindrical cam 68.

[0052] During the rotation of the moving cone bucket 3, the clearance groove 211 can prevent the spiral blade 21 from interfering with the rotation of the upright 62 or the cylindrical cam 68. At the same time, the spiral blade 21 can scrape the outer surface of the cylindrical cam 68 to prevent a large amount of feed from adhering to the outer surface of the cylindrical cam 68 and affecting the complete feeding of the feed.

[0053] The implementation principle of a feed mixing device according to an embodiment of this application is as follows:

[0054] When carrying out feed mixing, different types of feed are first fed into the premixing chamber 4 through the feed pipe 41. At this time, the feed will fall onto the inner wall of the moving cone hopper 3 under the action of gravity. Then, the reduction motor 311 drives the large diameter gear ring 312 to rotate through gear transmission, so that the moving cone hopper 3 drives the feed inside it to rotate together. Under the relative rotation of the moving cone hopper 3 and the fixed cone hopper 2, the spiral blade 21 can perform preliminary stirring and mixing of the feed inside the premixing chamber 4, so that the feeds of different densities and particle sizes are relatively evenly distributed in the feeding stage, thereby reducing the number of repeated lifting in the subsequent mixing process.

[0055] During the process of feed entering the circulation pipe 11 from the feed inlet 111 inside the premixing chamber 4, the servo motor 122 drives the auger 121 to rotate via a belt pulley, using the auger 121 to lift the feed upwards along the circulation pipe 11. Once the feed from the premixing chamber 4 has completely entered the circulation pipe 11 from the feed inlet 111, the cylinder 52 drives the sealing ring 51 to move vertically, blocking the feed inlet 111. The feed lifted to the top of the circulation pipe 11 by the auger 121 falls downwards from the outside of the circulation pipe 11 and re-enters the inner cavity of the circulation pipe 11 through the circulation port 112. As the auger 121 continues to rotate, the feed can be repeatedly lifted by the auger 121 to complete the mixing process. After the mixing process is complete, the servo motor 122 drives the auger 121 to reverse, discharging the feed through the discharge port at the bottom of the circulation pipe 11.

[0056] As the feed is lifted to the top of the circulation pipe 11 by the auger 121 and falls downward from the outside of the circulation pipe 11, the disc 63 can interfere with the falling path of the feed, change the falling direction and speed of the feed, and force the feed to revert, collide and disperse, thereby reducing the possibility of stratification of feed of different particle sizes when it falls to the bottom of the mixing tank 1, and improving the final quality and efficiency of the feed mixing work.

[0057] In addition, when the disc 63 is used to interfere with the falling path of the feed, the moving cone bucket 3 and the cylindrical cam 68 are kept rotating by the cooperation of the drive component 31. During this process, the contact point between the ball 69 and the cylindrical cam 68 will change continuously. When the ball 69 contacts the crest of the wavy end face of the cylindrical cam 68, the upright rod 62 will overcome the tension of the tension spring 67 and rise along the hollow cylinder 61. Conversely, the upright rod 62 will move downward along the hollow cylinder 61 under the tension of the tension spring 67 and make the ball 69 contact the trough of the wavy end face of the cylindrical cam 68.

[0058] Meanwhile, due to the presence of the spiral chute 64 and the slider 65, the upright 62 will also rotate as it rises and falls inside the hollow cylinder 61. This allows the disc 63 on the upright 62 to further mix the feed while intercepting the falling feed, greatly reducing the number of cycles required to reach the ideal mixing state, thereby improving the overall mixing efficiency of the feed.

[0059] In addition, during the spiral lifting and lowering process of the upright 62, the rubber sleeve 7 can provide a certain degree of sealing protection for the connection between the upright 62 and the hollow cylinder 61, so as to prevent feed from entering the gap between the upright 62 and the hollow cylinder 61 and affecting the normal movement of the upright 62. With the participation of the raising column 8, when the feed enters the premixing chamber 4, it can move towards the feeding port 111 through the gap between the cylindrical cam 68 and the moving cone hopper 3, so as to prevent the feed from being blocked by the cylindrical cam 68 and unable to be fed normally.

[0060] The above description is the preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principles described in this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A feed mixing device, comprising a mixing tank and a circulation pipe and a spiral lifting mechanism disposed in the middle thereof, wherein the spiral lifting mechanism is used to lift the feed located at the bottom of the mixing tank upward through the circulation pipe, characterized in that: The mixing tank has a fixed cone hopper and a moving cone hopper at the bottom opening. The moving cone hopper is rotatably connected to the bottom of the mixing tank and located below the fixed cone hopper. Both the fixed cone hopper and the moving cone hopper can be penetrated by a circulation pipe. A premixing chamber is reserved between the fixed cone hopper and the moving cone hopper. Multiple spiral blades located inside the premixing chamber are arranged in a circumferential array at the bottom of the fixed cone hopper. Multiple feed pipes are provided on the fixed cone hopper, and all feed pipes are connected to the premixing chamber. The bottom of the circulation pipe has a feeding port that can communicate with the premixing chamber and a circulation port that can communicate with the inner cavity of the fixed cone hopper. The bottom of the mixing tank is provided with a sealing device that can block the feeding port. A drive unit is provided between the mixing tank and the moving cone bucket, which is used to rotate the moving cone bucket. A dispersing mechanism is installed between the mixing tank and the fixed cone hopper; The dispersing mechanism includes multiple hollow cylinders arranged in an array on a fixed cone hopper. Each hollow cylinder has a vertical rod that can extend into the inner cavity of the mixing barrel. Each vertical rod has multiple discs, and the discs on each vertical rod are staggered in the vertical direction. The hollow cylinder has a spiral groove inside, and the upright has a slider that matches the spiral groove. A tension spring is installed between the transition plate that rotatably connects the hollow cylinder and the upright. Under the action of the tension spring, the upright always has a downward tendency. The moving cone bucket has multiple cylindrical cams with wavy end faces inside, and the bottom of the upright is equipped with a ball that can abut against the wavy end face of the cylindrical cam.

2. The feed mixing device according to claim 1, characterized in that: The sealing component includes a sealing ring sleeved on the outside of the circulation pipe, and a cylinder capable of driving the sealing ring to rise and fall is provided on the support truss at the bottom of the mixing tank.

3. The feed mixing device according to claim 1, characterized in that: The driving component includes a geared motor mounted on the support truss at the bottom of the mixing hopper, and a large-diameter geared ring fixedly fitted on the outside of the moving cone hopper. The geared motor can drive the large-diameter geared ring to rotate through gear transmission.

4. The feed mixing device according to claim 1, characterized in that: The spiral lifting mechanism includes an auger rotatably connected to the middle of the mixing tank, and the auger can pass through the circulation pipe. A servo motor installed at the top of the mixing tank can drive the auger to rotate through a belt pulley.

5. The feed mixing device according to claim 1, characterized in that: The dispersing mechanism is used to further disperse the feed that has been lifted to the top of the mixing tank cavity.

6. The feed mixing device according to claim 1, characterized in that: The transition plate is provided with a rubber sleeve, which can be fitted over the hollow cylinder.

7. The feed mixing device according to claim 1, characterized in that: The cylindrical cams are all fixedly connected to the inside of the moving cone hopper by a shim column, and a gap is maintained between the bottom surface of the cylindrical cam and the inner wall surface of the moving cone hopper for feed to pass through.

8. The feed mixing device according to claim 1, characterized in that: The spiral blades are intermittently arranged at the bottom of the fixed cone bucket. The spiral blades have clearance grooves that match the upright and the cylindrical cam, and the spiral blades can abut against the outer surface of the cylindrical cam.

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