Mixing mechanism of feed granulator

By designing the main mixing component and the auxiliary mixing component, the problems of uneven water addition and uneven mixing in the feed pellet mill are solved, achieving uniform mixing and efficient stirring, and adapting to the processing needs of different amounts of feed.

CN224207811UActive Publication Date: 2026-05-08XINXIANG ZHENGKANG BIOTECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XINXIANG ZHENGKANG BIOTECHNOLOGY CO LTD
Filing Date
2025-07-07
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

The mixing mechanism of existing feed pellet mills is prone to uneven mixing when water is added, especially when the feed at the top is saturated with water while the feed at the bottom is dry, and it is difficult to effectively mix a small amount of feed.

Method used

The design includes a main mixing component and a secondary mixing component. The rotation of the central pipe and the secondary water pipe drives the rotation of the mixing element and the mixing component. Combined with the control of the water pump and water valve, uniform water injection and mixing are achieved to meet the mixing needs of different amounts of feed.

Benefits of technology

It achieves uniform mixing of feed, improves mixing quality, and in particular solves the problem of moisture uniformity between the top and bottom feeds. It can also effectively mix small amounts of feed, thus improving mixing efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a mixing mechanism of a feed granulator, and relates to the related technical field of feed production. The material mixing device comprises a main body assembly, the main body assembly comprises an outer cylinder, and a main material mixing assembly and an auxiliary material mixing assembly are arranged on the outer cylinder; the main body assembly further comprises a feeding hopper and a discharging port which are connected to the upper portion and the lower portion of the outer cylinder in a penetrating mode, and a supporting frame is further fixed to the peripheral side of the outer cylinder. By arranging the main mixing assembly and the auxiliary mixing assembly, feed raw materials are put in during use, the motor drives the central pipeline and the auxiliary water pipeline to rotate and are stirred and mixed through the three groups of stirring pieces, then water is injected into the feed mixing device, so that feed is preliminarily mixed, and an inner water outlet pipe moves under the action of certain centrifugal force generated by water pressure and rotation; finally, the outer water outlet hole and the inner water outlet hole are overlapped, water flows out, water is evenly injected into the feed, and the problem that in a related scheme, water can only be added from the top of equipment, and the feed and the water are mixed unevenly is solved.
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Description

Technical Field

[0001] This utility model belongs to the field of feed production technology, and in particular relates to a mixing mechanism for a feed pellet mill. Background Technology

[0002] Feed pellet mills are key equipment in the feed processing industry, mainly used to process powdered feed ingredients into pelleted feed. They have advantages such as improving feed palatability, facilitating storage and transportation, and reducing waste. One of its core components is the mixing mechanism, which is usually composed of a stirring shaft, stirring blades, and a feed cylinder. The stirring shaft drives the blades to rotate, so that various feed ingredients are fully mixed in the feed cylinder, ensuring that the material composition is uniform and consistent. This provides a stable mixture for the subsequent pelleting process. The mixing efficiency and uniformity of the mixing mechanism directly affect the quality of the finished feed product.

[0003] In the utility model publication CN220802846U, a pig feed mixer is disclosed, including a support frame, a mixing barrel, an inlet and outlet, a rotating shaft, a support section, an end cover, and a stirring rod. The mixing barrel is rotatably connected to the support frame. The mixing barrel includes a cylindrical middle section and a conical section connecting the two sides of the middle section. The inlet and outlet are provided on the outside of the cylindrical section of the mixing barrel, and the rotating shaft and stirring rod are provided inside the mixing barrel. The stirring rod is set on the rotating shaft. During operation, the inlet and outlet are located at the top of the mixing barrel, and the pig feed is poured into the mixing barrel from the inlet and outlet. After mixing, the mixing barrel rotates so that the inlet and outlet are moved to the bottom of the mixing barrel. The pig feed gathers in the mixing barrel from the inclined surface of the conical section to the center, making it easy to pour out. Then, the stirring rod agitates the pig feed to speed up the pouring out, thus realizing the mixing of pig feed.

[0004] However, this solution also has certain drawbacks. Since the raw materials for pelleted feed need to be mixed to a slurry-like state before further processing, and the feed itself is highly absorbent, while the device can only add water from the feed inlet, this leads to uneven water addition. The feed at the top may be saturated with water while the feed at the bottom is still dry. Although stirring will improve the uniformity of mixing, it will still result in poor mixing quality. In addition, this device is only suitable for mixing large quantities of feed during production, and it is difficult to mix small amounts of feed that are only at the bottom of the cylinder. Utility Model Content

[0005] The purpose of this invention is to provide a mixing mechanism for a feed pellet mill. By setting up a main mixing component and a secondary mixing component, this invention solves the problem in related solutions where water can only be added from the top of the equipment, which easily leads to uneven mixing of feed and water.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model is a mixing mechanism for a feed pellet mill, including a main component, the main component including an outer cylinder, and a main mixing component and a secondary mixing component are provided on the outer cylinder;

[0008] The main components also include a feed hopper and a discharge port that are connected to the top and bottom of the outer cylinder, and a support frame is fixed on the outer periphery of the outer cylinder;

[0009] The main mixing assembly includes a central pipe rotatably connected to the center of the inner cavity of the outer cylinder. A mixing element 1 and a mixing element 2 are connected through the outer periphery of the central pipe. A water outlet hole is opened on the outer periphery of the mixing element 1. A water passage component is provided inside the mixing element 1. The water passage component includes an inner water outlet pipe provided inside the mixing element 1. An inner water outlet hole is opened on the inner water outlet pipe. A spring is fixed to one end of the inner water outlet pipe. The end of the spring away from the inner water outlet pipe is fixed to the inner end wall of the mixing element 1. A limiting element 1 is also fixed to the inner end wall of the mixing element 1. A limiting element 2 that is adapted to the limiting element 1 is fixed to one end of the inner water outlet pipe.

[0010] A water pipe is installed at one end of the outer cylinder. One end of the water pipe passes through the end wall of the outer cylinder and is connected to the central pipe and rotates. A water valve is installed on the water pipe.

[0011] A motor is fixed at the other end of the outer cylinder, and the motor's power shaft passes through the end wall of the outer cylinder and is fixedly connected to the central pipe.

[0012] Furthermore, multiple mixing components are provided for both mixing component one and mixing component two, and they are distributed alternately.

[0013] Furthermore, multiple external water outlets and multiple internal water outlets are provided, and they are arranged in a corresponding manner.

[0014] Furthermore, the secondary mixing assembly also includes a secondary cavity located below the outer cylinder. A secondary water pipe is rotatably connected inside the secondary cavity. Multiple agitators are connected through the secondary water pipe. A second water pipe is also connected through the side wall of the water pipe. The end of the second water pipe away from the first water pipe passes through the end wall of the outer cylinder and is rotatably connected to the secondary water pipe. A water valve is also installed on the second water pipe. The secondary mixing assembly also includes a transmission wheel set. The secondary water pipe is connected to the motor through the transmission wheel set.

[0015] Furthermore, the transmission wheel assembly includes transmission wheel one and transmission wheel two. Transmission wheel one is fixed to one end of the auxiliary water pipe protruding from the side wall of the outer cylinder, and transmission wheel two is fixed to the outer periphery of the motor power shaft. The same transmission belt is provided on the outer periphery of transmission wheel one and transmission wheel two. A shell is provided on the outer side of transmission wheel one, transmission wheel two and transmission belt.

[0016] Furthermore, both the second and third agitators have multiple water outlet holes on their outer periphery, and both the second and third agitators have water-passing components inside.

[0017] This utility model has the following beneficial effects:

[0018] This invention, by setting up a main mixing component and a secondary mixing component, allows the feed ingredients to be placed in during use. The motor is then started, driving the central pipe and secondary water pipe to rotate, which in turn drives the three mixing components (mixing element 1, mixing element 2, and mixing element 3) to rotate, thus mixing the feed. Simultaneously, water is injected into the feed through a water pump connected to a water pipe, providing initial mixing. Under the influence of water pressure and centrifugal force generated by the rotation, the inner water outlet pipe moves, ultimately causing the outer and inner water outlets to overlap, allowing water to flow out and evenly inject water into the feed. This solves the problem in related solutions where water can only be added from the top of the equipment, leading to uneven mixing of feed and water.

[0019] This invention, by setting up a secondary mixing component, allows the motor to drive the secondary water pipe to rotate through the transmission wheel set when mixing a small amount of feed. This causes the stirring component three to stir the feed. The water valve on water pipe one is closed, and the water valve on water pipe two is opened. Water flows through water pipe two into the secondary water pipe and finally flows out through the stirring component three, thus mixing the feed. This solves the problem of difficulty in mixing small amounts of feed in related solutions. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the overall structure of the present invention from another perspective;

[0022] Figure 3 This is a schematic diagram of the internal structure of the outer cylinder of this utility model;

[0023] Figure 4 This is a schematic diagram of the internal structure of the stirring component of this utility model;

[0024] Figure 5 This is a schematic diagram of the structure of limiting component one and limiting component two of this utility model.

[0025] Figure label:

[0026] 1. Main body components; 11. Outer cylinder; 12. Feed hopper; 13. Discharge port; 14. Support frame;

[0027] 2. Main mixing assembly; 21. Central pipe; 22. Agitator 1; 221. Agitator 2; 23. Outlet water hole; 24. Water supply component; 241. Inner water outlet pipe; 242. Inner water outlet hole; 243. Spring; 244. Limiting component 1; 245. Limiting component 2; 25. Water pipe 1; 251. Water valve; 26. Motor;

[0028] 3. Secondary mixing assembly; 31. Secondary chamber; 32. Secondary water supply pipe; 33. Mixing component three; 34. Water pipe two; 35. Transmission wheel set; 351. Transmission wheel one; 352. Transmission wheel two; 353. Transmission belt; 354. Outer shell. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0030] Please see Figure 1-5 As shown, this utility model is a mixing mechanism for a feed pellet mill, including a main component 1. The main component 1 includes an outer cylinder 11, on which a main mixing component 2 and a secondary mixing component 3 are provided. The main mixing component 2 is mainly used for the processing and production of large quantities of feed, while the secondary mixing component 3 is mainly used for the processing of small quantities of feed.

[0031] The main component 1 also includes a feed hopper 12 and a discharge port 13 that are connected to the top and bottom of the outer cylinder 11. A support frame 14 is also fixed on the outer periphery of the outer cylinder 11. The outer cylinder 11 is used to carry feed raw materials for mixing. The feed hopper 12 allows for better addition of raw materials. The discharge port 13 facilitates the removal of the pre-mixed feed, which is then placed into the feed pellet mill for further processing. The support frame 14 is used to support the entire mechanism.

[0032] The main mixing assembly 2 includes a central pipe 21 rotatably connected to the center of the inner cavity of the outer cylinder 11. A mixing element 1 22 and a mixing element 221 are connected through the outer periphery of the central pipe 21. A water outlet hole 23 is opened on the outer periphery of the mixing element 1 22. A water passage component 24 is provided inside the mixing element 1 22. The water passage component 24 includes an inner water outlet pipe 241 provided inside the mixing element 1 22. An inner water outlet hole 242 is opened on the inner water outlet pipe 241. A spring 243 is fixed at one end of the inner water outlet pipe 241. The end of the spring 243 away from the inner water outlet pipe 241 is fixed to the inner end wall of the mixing element 1 22. A limiting element 1 244 is also fixed on the inner end wall of the mixing element 1 22. A limiting element 245 adapted to the limiting element 1 244 is fixed at one end of the inner water outlet pipe 241.

[0033] The central pipe 21 serves as both the central axis of the mixing process and the water pipe for water supply. External water enters the central axis through water pipe 25, typically requiring an external water pump. Under the influence of water pressure and centrifugal force generated during rotation, the inner water outlet pipe 241 is pushed outward, compressing the spring 243. Water is then released when the outer water outlet 23 and the inner water outlet 242 overlap, thus achieving initial mixing of the feed. The limiting components 244 and 245 ensure that the inner water outlet pipe 241 always moves horizontally along the mixing component 22, preventing it from spinning in place and ensuring that the outer water outlet 23 and the inner water outlet 242 do not align properly.

[0034] One end of the outer cylinder 11 is provided with a water pipe 25. One end of the water pipe 25 passes through the end wall of the outer cylinder 11 and is connected to the central pipe 21 and rotates. A water valve 251 is provided on the water pipe 25, which allows water to be injected into the equipment from the outside. The water valve 251 is convenient for controlling its opening and closing. The other end of the outer cylinder 11 is fixed with a motor 26. The power shaft of the motor 26 passes through the end wall of the outer cylinder 11 and is fixedly connected to the central pipe 21. The motor 26 is used to drive the central pipe 21 to rotate, which in turn drives the first mixing component 22 and the second mixing component 221 to rotate, so as to mix the feed.

[0035] Furthermore, multiple mixing components 1 22 and 221 are provided, and they are distributed alternately; the multiple staggered mixing components 1 22 and 221 can increase the degree of mixing disorder, so that the feed is fully mixed.

[0036] Furthermore, multiple water outlets 23 and 242 are provided, and they are arranged correspondingly to each other; multiple water outlets can make the water for the mixed feed more dispersed, further increasing its mixing quality.

[0037] Furthermore, the secondary mixing assembly 3 also includes a secondary cavity 31 located below the outer cylinder 11. A secondary water pipe 32 is rotatably connected inside the secondary cavity 31. Multiple agitators 33 are connected through the secondary water pipe 32. A second water pipe 34 is also connected through the side wall of the first water pipe 25. The end of the second water pipe 34 away from the first water pipe 25 passes through the end wall of the outer cylinder 11 and is rotatably connected to the secondary water pipe 32. A water valve 251 is also provided on the second water pipe 34. The secondary mixing assembly 3 also includes a transmission wheel set 35. The secondary water pipe 32 is connected to the motor 26 through the transmission wheel set 35.

[0038] The secondary mixing component 3 is mainly used for mixing very small amounts of feed to make feed. Water pipe 2 34 is a branch of water pipe 1 25, which allows water to be added to the secondary water pipe 32. It is also equipped with a water valve 251, which allows water pipe 1 25 and water pipe 2 34 to be added synchronously or individually.

[0039] Furthermore, the transmission wheel assembly 35 includes a first transmission wheel 351 and a second transmission wheel 352. The first transmission wheel 351 is fixed to one end of the auxiliary water pipe 32 protruding from the side wall of the outer cylinder 11, and the second transmission wheel 352 is fixed to the outer periphery of the power shaft of the motor 26. The same transmission belt 353 is provided on the outer periphery of the first transmission wheel 351 and the second transmission wheel 352. A housing 354 is provided on the outer side of the first transmission wheel 351, the second transmission wheel 352 and the transmission belt 353. The transmission wheel assembly 35 mainly enables the motor 26 to drive the auxiliary water pipe 32 to rotate, so that it can stir a small amount of feed. The first transmission wheel 351 is fixed on the auxiliary water pipe 32, and the second transmission wheel 352 is fixed on the power shaft of the motor 26. The two are connected by transmission belt 353, so that the rotation of the power shaft of the motor 26 drives the rotation of the auxiliary water pipe 32. The housing 354 is mainly used to protect the safety of the user and prevent accidents.

[0040] Furthermore, both the second agitator 221 and the third agitator 33 have multiple water outlet holes 23 on their outer periphery, and both the second agitator 221 and the third agitator 33 have water-passing components 24 inside; the only difference between the first agitator 22, the second agitator 221 and the third agitator 33 is their size and installation position, but the three have the same structure and the same functional effect.

[0041] The specific working principle of this utility model is as follows: When using this device, place it at the front end of the feed pellet mill, and connect its discharge port 13 to the feed pellet mill. Put the feed to be mixed into the feed hopper 12, and then start the motor 26. The motor 26 drives the central pipe 21 to rotate, thereby driving the first stirring component 22 and the second stirring component 221 to rotate, so that the feed is stirred and mixed. At the same time, water is injected into the feed through the water pump connected to the water pipe 25 to initially mix the feed. First, the external water enters the central pipe 21 under the action of the water pump, and then enters the inner water outlet pipe 241 through the central pipe 21. When the water pressure further increases and the central pipe 21 generates a certain centrifugal force, it will push the inner water outlet pipe 241 to move further, so that the outer water outlet 23 and the inner water outlet 242 overlap, and the water flows out, finally injecting water evenly into the feed to facilitate its mixing. This water injection method can make the water more dispersed, thereby improving the mixing quality.

[0042] Meanwhile, the device is equipped with a secondary mixing component 3. When only a small amount of feed is put in and the main mixing component 2 cannot drive it to mix, the secondary mixing component 3 can drive it to mix. The motor 26 drives the secondary water pipe 32 to rotate through the transmission wheel set 35, thereby driving the agitator 33 to mix the feed. At this time, the water valve 251 on the first water pipe 25 is closed and the water valve 251 on the second water pipe 34 is opened. The water will flow through the second water pipe 34 into the secondary water pipe 32 and finally flow out through the agitator 33 to mix the feed. At the same time, the secondary mixing component 3 can also work synchronously when the main mixing component 2 is working. The feed at the bottom is relatively concentrated due to gravity and is not easy to mix. With the assistance of the secondary mixing component 3, the mixing quality can be further improved.

[0043] The above are merely preferred embodiments of the present utility model and do not limit the present utility model. Any modifications, equivalent substitutions, or improvements made to the technical solutions described in the foregoing embodiments, or to some of the technical features, shall be protected by the present utility model.

Claims

1. A mixing mechanism for a feed pellet mill, comprising a main component (1), characterized in that: The main component (1) includes an outer cylinder (11), on which a main mixing component (2) and a secondary mixing component (3) are provided. The main component (1) also includes a feed hopper (12) and a discharge port (13) that are connected to the top and bottom of the outer cylinder (11), and a support frame (14) is fixed on the outer periphery of the outer cylinder (11). The main mixing assembly (2) includes a central pipe (21) rotatably connected to the center of the inner cavity of the outer cylinder (11). The outer periphery of the central pipe (21) is connected to a first agitator (22) and a second agitator (221). The outer periphery of the first agitator (22) is provided with an outlet water hole (23). A water-passing component (24) is provided inside the first agitator (22). The water-passing component (24) includes an inner water outlet pipe (241) provided inside the first agitator (22). The inner water outlet pipe (241) is provided with an inner water outlet hole (242). A spring (243) is fixed at one end of the inner water outlet pipe (241). The end of the spring (243) away from the inner water outlet pipe (241) is fixed to the inner end wall of the stirring component (22). A limiting component (244) is also fixed on the inner end wall of the stirring component (22). A limiting component (245) that is compatible with the limiting component (244) is fixed at one end of the inner water outlet pipe (241). One end of the outer cylinder (11) is provided with a water pipe (25), one end of the water pipe (25) passes through the end wall of the outer cylinder (11) and is connected to the central pipe (21) and rotates. A water valve (251) is provided on the water pipe (25). A motor (26) is fixed at the other end of the outer cylinder (11), and the power shaft of the motor (26) passes through the end wall of the outer cylinder (11) and is fixedly connected to the central pipe (21).

2. The mixing mechanism of a feed pellet mill according to claim 1, characterized in that: Multiple stirring components (22) and multiple stirring components (221) are provided, and they are distributed alternately.

3. The mixing mechanism of a feed pellet mill according to claim 2, characterized in that: Both the external water outlet (23) and the internal water outlet (242) are provided in multiple quantities, and are provided in a corresponding manner.

4. The mixing mechanism of a feed pellet mill according to claim 3, characterized in that: The secondary mixing assembly (3) also includes a secondary cavity (31) located below the outer cylinder (11). A secondary water pipe (32) is rotatably connected inside the secondary cavity (31). Multiple stirring elements (33) are connected through the secondary water pipe (32). A second water pipe (34) is also connected through the side wall of the first water pipe (25). The end of the second water pipe (34) away from the first water pipe (25) passes through the end wall of the outer cylinder (11) and is rotatably connected to the secondary water pipe (32). A water valve (251) is also provided on the second water pipe (34). The secondary mixing assembly (3) also includes a transmission wheel set (35). The secondary water pipe (32) is connected to the motor (26) through the transmission wheel set (35).

5. The mixing mechanism of a feed pellet mill according to claim 4, characterized in that: The transmission wheel assembly (35) includes a first transmission wheel (351) and a second transmission wheel (352). The first transmission wheel (351) is fixed to one end of the auxiliary water pipe (32) protruding from the side wall of the outer cylinder (11). The second transmission wheel (352) is fixed to the outer periphery of the power shaft of the motor (26). The first transmission wheel (351) and the second transmission wheel (352) are provided with the same transmission belt (353) on their outer periphery. The first transmission wheel (351), the second transmission wheel (352) and the transmission belt (353) are provided with a shell (354) on their outer sides.

6. The mixing mechanism of a feed pellet mill according to claim 4, characterized in that: Both the second (221) and the third (33) of the agitator are provided with multiple water outlet holes (23) on their outer periphery, and both the second (221) and the third (33) of the agitator are provided with water-passing components (24).

Citation Information

Patent Citations

  • Pig feed mixer

    CN220802846U