A mixing and stirring device for pet food processing
By introducing a conical mixing drum and a multi-stage stirring structure into the pet food processing unit, the stability and uniformity issues of large-volume, heavy mixing tanks have been solved, achieving a more efficient material mixing effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI JIANMO BIOTECHNOLOGY CO LTD
- Filing Date
- 2025-07-24
- Publication Date
- 2026-07-21
AI Technical Summary
Existing pet food processing equipment suffers from decreased stability when mixing large-volume, heavy mixing tanks, affecting the mixing effect and making it difficult to achieve uniform mixing.
It adopts a multi-stage stirring structure, including a conical mixing cylinder and a stirring tank. The conical mixing cylinder is driven by a third motor for pre-mixing, and the stirring rod and spiral stirring blades are driven by a second motor for stirring, so as to achieve material classification pretreatment and uniform mixing.
It improves the uniformity and stability of mixing, avoids clogging of the mixing device, and enhances the processing adaptability to different pet foods.
Smart Images

Figure CN224524596U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pet food processing technology, specifically a mixing and stirring device for pet food processing. Background Technology
[0002] Pet food is divided into pet daily rations, daily ration supplements, pet health foods, pet snacks, prescription foods, etc. It is a type of food specially provided for pets and small animals. It is a high-end animal food that is between human food and traditional livestock feed. Its main function is to provide various pets with the most basic life guarantee, growth and development and health-related nutrients. During the processing of pet food, various ingredients are often mixed together and then processed into various shapes such as pellets and strips to ensure the comprehensiveness of pet food nutrition. For example, announcement number CN221753060U, entitled "A Stirring Device for Pet Food Processing," includes a base, a bracket fixedly mounted on the top of the base, a stirring tank rotatably mounted on the bracket, a top cover covering the top of the stirring tank, a first motor fixedly mounted on the top of the top cover, a stirring rod fixedly connected to the output end of the first motor, a second motor fixedly mounted on one side of the base, a crank fixedly connected to the output end of the second motor, a connecting rod hinged to one end of the crank, and the other end of the connecting rod hinged to the stirring tank. Through the arrangement of the first motor, stirring rod, second motor, crank, and connecting rod, when processing pet food materials, the second motor can be activated to drive the crank to rotate, causing the crank to drive the connecting rod to rotate, which in turn causes the stirring tank to swing back and forth, thereby improving the stirring effect of the materials within the stirring tank.
[0003] Existing mixing devices improve uniformity by driving the mixing tank to oscillate. While this mixing structure can solve some of the mixing uniformity problems, this method easily leads to a decrease in the stability of the mixing device, especially for large-volume and heavy mixing tanks. Under this method, it is difficult to drive the device to oscillate, thus affecting the mixing effect. Therefore, it does not meet the current needs. In response, a mixing device for pet food processing is proposed. Utility Model Content
[0004] The purpose of this invention is to provide a mixing and stirring device for pet food processing to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a mixing and stirring device for pet food processing, comprising: a frame, a feeding assembly mounted above the frame, a conveying assembly mounted below the feeding assembly, a stirring assembly mounted at one end of the conveying assembly, the stirring assembly including a stirring tank, the feeding end of the stirring tank being connected to the discharging end of the conveying assembly via a pipeline, a premixing assembly mounted behind the stirring assembly, the premixing assembly including a conical mixing cylinder, multiple feeding pipes mounted on the outer wall of the conical mixing cylinder, a discharge pipe mounted at the discharging end of the conical mixing cylinder, and one end of the discharge pipe being connected to the stirring tank.
[0006] Preferably, a third motor is installed above the conical mixing cylinder, a shaft is installed at the output end of the third motor, three sets of annularly spaced stirring racks are installed on the outer wall of the shaft, and multiple sets of vertically spaced bottom stirring blades are installed at the bottom of the shaft.
[0007] Preferably, a second motor is installed above the mixing tank, a stirring rod is installed at the output end of the second motor, and a spiral stirring blade is installed on the outer wall of the stirring rod.
[0008] Preferably, the feeding assembly includes a feeding hood, a filter screen is installed at the feeding port of the feeding hood, and a feeding cylinder is installed below the feeding hood.
[0009] Preferably, the conveying assembly includes an outer cylinder, an inlet is installed on the outer wall of one end of the outer cylinder, and a valve pipe is installed between the inlet and the feed cylinder.
[0010] Preferably, an outlet is installed on the outer wall of the other end of the outer cylinder, and the outer cylinder is connected to the feed end of the mixing tank through the outlet.
[0011] Preferably, a conveying auger is installed inside the outer cylinder, and a first motor is installed at one end of the conveying auger.
[0012] Compared with the prior art, the beneficial effects of this utility model are: (1) In this utility model, a conical mixing cylinder is added, and a multi-stage stirring structure is driven by a third motor to premix some materials. The materials are processed in two ways. The main material is fed from the feeding component to the conveying component, and then sent to the mixing tank through the conveying component. The auxiliary material is pre-treated through the conical mixing cylinder and then enters the mixing tank through the discharge pipe. Compared with the design of a single mixing tank, it can classify and pre-mix materials based on different materials, and adapt to the mixing and stirring requirements in different pet food processing.
[0013] (2) In this utility model, the second motor is used to drive the stirring rod to rotate, and the spiral stirring blades follow the rotation to stir and mix the internal stirring materials. The stirring blades adopt a spiral structure, which can improve the internal stirring and mixing range, improve the stirring and mixing uniformity, and effectively improve the stirring and mixing effect. The third motor drives the shaft to rotate, and the three sets of ring-shaped stirring frames rotate with the shaft, thereby stirring and mixing the premixed material in the conical mixing cylinder. During the stirring process of the stirring frame rotating, the bottom stirring blades follow the rotation to stir the discharge end of the conical mixing cylinder, avoid blockage at this point, and achieve the effect of unblocking the discharge. The above structure uses two different stirring components to stir and mix two different stirring positions, which effectively improves the stirring uniformity of the materials. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a side perspective view of the present invention. Figure 3 This is a schematic diagram of the premixed component structure of this utility model; Figure 4 This is a schematic diagram of the internal structure of the conical mixing cylinder of this utility model; Figure 5 This is a schematic diagram of the external structure of the conveying component and the stirring component of this utility model; Figure 6 This is a schematic diagram of the internal structure of the conveying component and the stirring component of this utility model; In the diagram: 1. Frame; 2. Feeding assembly; 201. Feed hood; 202. Filter screen; 203. Feed cylinder; 204. Valve pipe; 3. Conveying assembly; 301. Outer cylinder; 302. Inlet; 303. First motor; 304. Outlet; 305. Conveying auger; 4. Mixing assembly; 401. Mixing tank; 402. Second motor; 403. Mixing rod; 404. Spiral mixing blade; 5. Premixing assembly; 501. Conical mixing cylinder; 502. Feed pipe; 503. Discharge pipe; 504. Third motor; 505. Shaft; 506. Mixing frame; 507. Bottom mixing blade. 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] Please see Figure 1-6This utility model provides an embodiment of a mixing and stirring device for pet food processing, comprising: a frame 1, a feeding assembly 2 mounted above the frame 1, a conveying assembly 3 mounted below the feeding assembly 2, a stirring assembly 4 mounted at one end of the conveying assembly 3, the stirring assembly 4 including a stirring tank 401, the feeding end of the stirring tank 401 being connected to the discharging end of the conveying assembly 3 via a pipeline, a premixing assembly 5 mounted behind the stirring assembly 4, the premixing assembly 5 including a conical mixing cylinder 501, multiple feeding pipes 502 mounted on the outer wall of the conical mixing cylinder 501, and a discharging end of the conical mixing cylinder 501 being installed with... The equipment includes a discharge pipe 503, one end of which is connected to the mixing tank 401. In this structure, some materials are screened at the feeding component 2, and the screened materials enter the conveying component 3, which then feeds the materials into the mixing tank 401. The remaining materials are fed into the conical mixing cylinder 501 for pre-mixing. The pre-mixed materials then enter the mixing tank 401 from the discharge pipe 503 for final mixing. This structure enables the equipment to perform feeding screening, conveying, and separate mixing functions, effectively improving its performance to meet different needs in pet food processing and making it convenient for users.
[0017] Please see Figure 4 A third motor 504 is installed above the conical mixing cylinder 501. A shaft 505 is installed at the output end of the third motor 504. Three sets of annularly spaced stirring racks 506 are installed on the outer wall of the shaft 505. Multiple sets of vertically spaced bottom stirring blades 507 are installed at the bottom of the shaft 505. The shaft 505 is rotated by the third motor 504, and the three sets of annularly spaced stirring racks 506 rotate with the shaft 505, thereby stirring and mixing the premixed material in the conical mixing cylinder 501. During the stirring process of the stirring racks 506, the bottom stirring blades 507 rotate with them to stir the discharge end of the conical mixing cylinder 501, preventing blockage and achieving the effect of unblocking the discharge.
[0018] Please see Figure 6 A second motor 402 is installed above the mixing tank 401. A stirring rod 403 is installed at the output end of the second motor 402. A spiral stirring blade 404 is installed on the outer wall of the stirring rod 403. The second motor 402 is used to drive the stirring rod 403 to rotate. The spiral stirring blade 404 rotates accordingly to stir and mix the internal materials. The spiral structure of the stirring blade can improve the internal stirring and mixing range, improve the stirring and mixing uniformity, and effectively improve the stirring and mixing effect.
[0019] Please see Figure 2 , Figure 5 , Figure 6The feeding assembly 2 includes a feeding hood 201, a filter screen 202 installed at the feeding inlet of the feeding hood 201, and a feeding cylinder 203 installed below the feeding hood 201. The conveying assembly 3 includes an outer cylinder 301, an inlet 302 installed on the outer wall of one end of the outer cylinder 301, a valve pipe 204 installed between the inlet 302 and the feeding cylinder 203, and an outlet 304 installed on the outer wall of the other end of the outer cylinder 301. The outer cylinder 301 is connected to the feeding end of the mixing tank 401 through the outlet 304. The internal part of 1 is equipped with a conveying auger 305, and a first motor 303 is installed at one end of the conveying auger 305. In the above structure, the filter screen 202 is used to screen the material. The material with a smaller volume enters the feed cylinder 203, and enters the conveying auger 305 through the valve pipe 204 connected to the inlet 302. The conveying auger 305 sends the material to the outlet 304, and finally enters the mixing tank 401, so that the mixing device can have the functions of feeding, screening and conveying through the above structure.
[0020] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A mixing and stirring device for pet food processing, comprising a frame (1), characterized in that: A feeding assembly (2) is installed above the frame (1), and a conveying assembly (3) is installed below the feeding assembly (2). A stirring assembly (4) is installed at one end of the conveying assembly (3). The stirring assembly (4) includes a stirring tank (401). The feeding end of the stirring tank (401) is connected to the discharge end of the conveying assembly (3) through a pipeline. A premixing assembly (5) is installed behind the stirring assembly (4). The premixing assembly (5) includes a conical mixing cylinder (501). Multiple feeding pipes (502) are installed on the outer wall of the conical mixing cylinder (501). A discharge pipe (503) is installed at the discharge end of the conical mixing cylinder (501). One end of the discharge pipe (503) is connected to the stirring tank (401).
2. The mixing and stirring device for pet food processing according to claim 1, characterized in that: A third motor (504) is installed above the conical mixing cylinder (501). A shaft (505) is installed at the output end of the third motor (504). Three sets of ring-shaped stirring racks (506) are installed on the outer wall of the shaft (505). Multiple sets of vertically spaced bottom stirring blades (507) are installed at the bottom of the shaft (505).
3. The mixing and stirring device for pet food processing according to claim 1, characterized in that: A second motor (402) is installed above the mixing tank (401), and a stirring rod (403) is installed at the output end of the second motor (402). A spiral stirring blade (404) is installed on the outer wall of the stirring rod (403).
4. The mixing and stirring device for pet food processing according to claim 1, characterized in that: The feeding assembly (2) includes a feeding hood (201), a filter screen (202) is installed at the feeding port of the feeding hood (201), and a feeding cylinder (203) is installed below the feeding hood (201).
5. A mixing and stirring device for pet food processing according to claim 4, characterized in that: The conveying assembly (3) includes an outer cylinder (301), an inlet (302) is installed on the outer wall of one end of the outer cylinder (301), and a valve pipe (204) is installed between the inlet (302) and the feed cylinder (203).
6. A mixing and stirring device for pet food processing according to claim 5, characterized in that: An outlet (304) is installed on the outer wall of the other end of the outer cylinder (301), and the outer cylinder (301) is connected to the feed end of the mixing tank (401) through the outlet (304).
7. A mixing and stirring device for pet food processing according to claim 6, characterized in that: The outer cylinder (301) is equipped with a conveying auger (305), and a first motor (303) is installed at one end of the conveying auger (305).