Pet food extruder

Abstract

The utility model discloses a pet food extruder, and relates to a pet food extruder. The extruder comprises a storage bin, an extrusion pipe and a cutting mechanism, a rotating rod with a stirring rod and a spiral blade is arranged in the storage bin, and the rotating rod is driven by a stirring motor; a movable baffle is arranged in the transition pipe between the storage bin and the extrusion pipe, and opening and closing of the baffle are controlled through a driving piece, so that smooth conveying of materials is ensured; an auger is arranged in the extrusion pipe to push the raw materials to move, and a cutting disc and a cutting motor are arranged at the tail end to achieve accurate cutting. The production efficiency and the quality stability of the pet food are improved, and meanwhile maintenance and cleaning are convenient.

Description

Technical Field

[0001] The utility model relates to the field of pet food processing equipment, in particular to a pet food extruder. Background Art

[0002] Pet food extruders are widely used in the production and processing of pet food. They crush and extrude various pet food ingredients into soft, long strips. A cutting device then cuts these into food pellets of similar lengths. These pellets are then transported to the next processing station for drying. This equipment significantly improves the efficiency and quality of pet food production, making pet food production and processing more automated and standardized.

[0003] For related technologies, please refer to the Chinese patent announcement number CN211932493U, which discloses a high-protein pet chew food extrusion device, including a machine base, a frame and a conveyor belt on the top of the machine base, a molding cavity inside the frame, a conveying pipe connected between the molding cavity and the conveyor belt, an extrusion cavity fixedly connected to one side of the frame, the bottom of the extrusion cavity is fixedly connected to the frame through supporting legs, a storage box is provided above the extrusion cavity, the storage box and the extrusion cavity are fixedly connected through a material guide funnel, an extrusion screw rod is provided in the extrusion cavity, one end of the extrusion screw rod passes through the extrusion cavity and extends to the middle of the driven wheel, a belt is provided on the outside of the driven wheel, the end of the belt away from the driven wheel is provided on the driving wheel, a rotating shaft is passed through the middle of the driving wheel, the rotating shaft is connected to the output end of the reducer, one end of the reducer is provided with motor 1, the output end of motor 1 is connected to the reducer, and motor 1 and the reducer are fixed on the machine base.

[0004] With regard to the above-mentioned related technologies, in order to enable the extrusion equipment to have the functions of stirring, conveying and extruding at the same time, the storage box and the extrusion chamber are directly connected so that the stirred raw materials can be directly conveyed to the cutting position through the extrusion chamber. However, when the raw materials are initially placed, the raw materials that first enter the storage box will directly enter the extrusion chamber under the action of the material guide funnel, while the stirring structures such as scrapers, stirring blades and propellers are only in the storage box, so that the small amount of raw materials that first enter the storage box cannot be fully stirred, affecting the quality of the food particles first extruded by the extruder. Utility Model Content

[0005] In order to improve the quality of food particles initially extruded by an extrusion device, the present application provides a pet food extruder.

[0006] This application provides a pet food extruder, which adopts the following technical solution:

[0007] A pet food extruder includes a storage bin, the lower end of the storage bin is connected to an extrusion tube, the end of the extrusion tube away from the storage bin is provided with a cutting mechanism, a rotating rod is provided in the storage bin, and a stirring motor is fixedly provided at the upper end of the storage bin for driving the rotating rod to rotate, a plurality of stirring rods are fixedly provided along the circumferential direction of the rotating rod, the end of the stirring rod away from the rotating rod is in conflict with the inner wall of the storage bin, a spiral blade is fixedly provided at the lower end of the rotating rod along the axial direction, a transition tube is fixedly provided between the storage bin and the extrusion tube, a baffle is provided in the transition tube, the baffle is located below the spiral blade and in conflict with the spiral blade, the baffle is slidingly connected to the transition tube in the transverse direction, the transition tube is provided with a driving member for driving the baffle to move, and an auger is provided along the length direction of the extrusion tube for pushing the raw material to move.

[0008] By adopting the above technical solution, the rotating rod in the storage bin and the stirring rod on it can fully stir the raw materials entering the storage bin, ensuring that all raw materials are evenly mixed and preventing insufficiently mixed raw materials from directly affecting the quality of subsequent extruded products. The design of the spiral blades can not only achieve further stirring of the raw materials, but also effectively push the raw materials downward to prevent the raw materials from accumulating or clogging in the storage bin. The baffle design in the transition pipe can control the inflow speed of the raw materials, preventing raw materials that are not fully stirred in the initial stage from directly entering the extrusion tube, thereby ensuring that the extruded food particles are always of high quality. The auger in the extrusion tube can efficiently push the raw materials so that they can reach the cutting mechanism smoothly, ensuring the continuity and stability of the cutting process.

[0009] Optionally, the inner diameter of the transition pipe is circular, and the outer circle of the lower end of the spiral blade is in contact with the inner wall of the transition pipe along the circumferential direction.

[0010] By adopting the above technical solution, close contact between the spiral blades and the inner wall of the transition tube is ensured, effectively preventing the raw material from being retained or leaking between the two, thereby ensuring that the raw material enters the extrusion tube smoothly, improving extrusion efficiency and product quality.

[0011] Optionally, a accommodating block is fixedly provided at the upper end of the transition pipe, and the accommodating block can also be laterally provided with an avoidance groove connected to the transition pipe. One side of the baffle is located in the avoidance groove and fits against the inner wall of the avoidance groove. The driving part includes a lifting cylinder and a push plate corresponding to the baffle one by one. A connecting block is fixedly provided at the lower end of the baffle. The connecting block passes through the accommodating block and is slidably connected to the accommodating block laterally. A moving ring is slidably connected to the outside of the transition pipe along the axial direction. One end of the push plate is hinged to the corresponding connecting block vertically, and the other end is hinged to the moving ring. The lifting cylinder is fixedly connected to the transition pipe for driving the moving ring to move.

[0012] The above-mentioned technical solution enables precise control of the baffle within the transition duct. Specifically, the placement of the receiving block provides clearance for the baffle, allowing it to slide smoothly within the clearance groove, ensuring a close fit between the baffle and the inner wall of the transition duct, preventing material leakage. The drive design utilizes a lifting cylinder to drive the moving ring, which in turn pushes the connecting block via a push plate to achieve lateral movement of the baffle, effectively controlling the material flow path and improving the controllability and stability of material transportation.

[0013] Optionally, the inner wall of the transition tube is slidably connected to a retaining ring along the axial direction, the transition tube is provided with an annular groove adapted to the retaining ring, a moving block is fixed to the outer circle of the retaining ring, the moving block passes through the transition tube and is slidably connected to the transition tube along the axial direction of the transition tube, a connecting rod is provided between the moving ring and the moving block, and when the moving ring moves, the moving block is driven to move by the connecting rod.

[0014] By adopting the above technical solution, the retaining ring slides along the axial direction of the transition pipe under the guidance of the annular groove. After the baffle enters the receiving groove, the retaining ring closes the receiving groove under the action of the moving ring and the connecting rod, thereby reducing the probability of the stirred food raw materials entering the avoidance groove and improving the flow continuity of the raw materials.

[0015] Optionally, the connecting rod includes an upper rod, a lower rod and a positioning spring, the upper rod is fixedly connected to the moving block, and a guide hole is opened at the lower end of the upper rod, the upper end of the lower rod is located in the guide hole and fits against the inner wall of the guide hole, the moving ring is fixedly connected to the lower rod, and a positioning plate corresponding to the upper rod is fixed on the outer circle of the lower rod, the positioning spring is located in the guide hole, and one end of the positioning spring is fixedly connected to the upper rod, and the other end is fixedly connected to the lower rod. In the natural state, the positioning spring pushes the upper rod away from the lower rod.

[0016] By adopting the above technical solution, the design of the connecting rod ensures stable transmission between the retaining ring and the moving ring, thereby achieving precise control of the baffle. Specifically, the fixed connection between the upper rod and the moving block, and the fixed connection between the lower rod and the moving ring, ensure that the movement of the moving ring can be effectively transmitted to the retaining ring. The matching design of the guide hole and the lower rod enables the lower rod to maintain linear motion during movement, avoiding offset or jamming. The setting of the positioning spring further enhances the stability of the system. When the positioning spring is in a natural state, it pushes the upper rod away from the lower rod, preventing malfunctions due to mechanical vibration or external interference, thereby improving the reliability and service life of the entire system.

[0017] Optionally, a plurality of extrusion ports are provided at one end of the extrusion tube away from the storage bin, and the cutting mechanism includes a cutting disk and a cutting motor. The cutting disk is rotatably connected to the extrusion tube, and the plurality of extrusion ports are evenly arranged along the circumference of the cutting disk. A plurality of cutting knives are fixed along the circumference of the outer circle of the cutting disk, and the cutters correspond to the extrusion ports one by one. The cutting motor is fixedly connected to the extrusion tube for driving the cutting disk to rotate.

[0018] By adopting this technical solution, the cutting mechanism can precisely control the cutting process, ensuring that each food particle is of uniform size, improving product quality and appearance consistency. Specifically, the multiple extrusion ports ensure even material distribution and prevent blockage. The cutters on the cutting disc correspond to the extrusion ports, ensuring accurate cuts every time, further improving cutting efficiency and precision. The use of a cutting motor enables automated operation, reducing manual intervention and improving production efficiency.

[0019] Optionally, a threaded tube is fixedly provided at the extrusion port, and a limiting tube is provided at one end of the threaded tube away from the extrusion tube. The limiting tube is located between the cutting disk and the extrusion tube. An internal threaded ring is rotatably connected to the outer side of the limiting tube, and the internal threaded ring is threadedly connected to the threaded tube.

[0020] By adopting this technical solution, the combined use of a threaded tube and an internally threaded ring allows for effective adjustment of the extrusion port, ensuring dimensional stability and precision, and avoiding material waste and product failures caused by port deformation. Furthermore, the design of the stop tube effectively prevents material splashing during cutting, ensuring a clean production environment and product hygiene and safety.

[0021] Optionally, the extrusion tube includes a circular tube portion and a fixed disk, the circular tube portion is fixedly connected to the lower end portion of the transition tube, and an opening is provided at one end of the circular tube portion away from the storage bin, the fixed disk is located at the opening and seals the opening, and a positioning bolt is provided between the fixed disk and the circular tube portion, the fixed disk and the circular tube portion are detachably connected by the positioning bolt, and the cutting mechanism is located at the end of the circular tube portion away from the transition tube.

[0022] By adopting the above technical solution, after completing the extrusion processing of part of the raw materials, the fixed plate is disassembled by removing the positioning bolts, which makes it easier to clean the inside of the round tube. The maintenance and cleaning of the extruded tube are more convenient, thereby improving the hygiene and service life of the equipment.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. By arranging a rotating rod and multiple stirring rods in the storage bin, and a spiral blade at the lower end of the rotating rod, it can effectively ensure that all raw materials are fully stirred before entering the extrusion tube, thus solving the problem of insufficient stirring of the raw materials that first enter the storage bin in the prior art, and improving the overall quality and stability of the food particles;

[0025] 2. The baffle in the transition pipe cooperates with the spiral blade to accurately control the speed of the raw materials entering the extrusion pipe, avoiding the raw materials from entering the extrusion pipe too quickly or unevenly, further ensuring the uniformity and continuity of the raw materials, and improving the extrusion efficiency and product quality;

[0026] 3. The auger in the extrusion tube can effectively push the raw materials before they enter the cutting mechanism, ensuring the stability and uniformity of the raw materials during the extrusion process, and ultimately cutting out food particles of uniform length, thereby improving the product qualification rate and production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of a pet food extruder.

[0028] Figure 2 This is a schematic diagram intended to highlight the internal structure of the storage silo and extrusion tube.

[0029] Figure 3 This is a schematic diagram intended to highlight the location of the retaining ring.

[0030] Explanation of the accompanying symbols: 1. Storage bin; 11. Rotating rod; 111. Stirring rod; 112. Spiral blade; 12. Stirring motor; 21. Auger; 22. Circular tube; 23. Fixed disk; 24. Extrusion port; 25. Threaded tube; 26. Limiting tube; 261. Internal thread ring; 3. Cutting mechanism; 31. Cutting disk; 311. Cutter; 32. Cutting motor; 4. Transition tube; 41. Baffle; 411. Connecting block; 42. Accommodating block; 421. Avoidance groove; 43. Moving ring; 44. Baffle ring; 441. Moving block; 5. Driving part; 51. Lifting cylinder; 52. Push plate; 6. Connecting rod; 61. Upper rod; 611. Guide hole; 62. Lower rod; 621. Positioning disk; 63. Positioning spring. DETAILED DESCRIPTION

[0031] The present application is further described in detail below in conjunction with all the accompanying drawings.

[0032] The embodiments of the present application disclose a pet food extruder. Example

[0033] Reference Figure 1 and Figure 2 A pet food extruder includes a storage bin 1, the lower end of which is connected to an extrusion tube. A cutting mechanism 3 is provided at the end of the extrusion tube away from the storage bin 1. A rotating rod 11 is provided within the storage bin 1. A stirring motor 12 is mounted at the upper end of the storage bin 1 to drive the rotating rod 11. The rotating rod 11 is circumferentially fixed with a plurality of stirring rods 111. After raw materials are placed in the storage bin 1, the rotating rod 11 stirs and mixes the raw materials. The ends of the stirring rods 111 away from the rotating rod 11 abut against the inner wall of the storage bin 1. The lower end of the rotating rod 11 is axially fixed with spiral blades 112.

[0034] Reference Figure 1 and Figure 2A transition pipe 4 is fixedly provided between the storage bin 1 and the extrusion pipe, and a baffle 41 is provided in the transition pipe 4. The baffle 41 is located below the spiral blade 112 and conflicts with the spiral blade 112. The baffle 41 is slidingly connected to the transition pipe 4 in the transverse direction. The transition pipe 4 is provided with a driving member 5 for driving the baffle 41 to move. Initially, the baffle 41 blocks the transition pipe 4. At this time, the raw material in the storage bin 1 is located above the baffle 41, so that the stirring rod 111 and the spiral blade 112 cooperate to mix the raw materials.

[0035] Reference Figure 1 and Figure 2 Specifically, the storage bin 1 includes a top cover and a base, and the top cover and the base are fixedly connected by bolts, which is convenient for disassembly and cleaning. The inner wall of the storage bin 1 is provided with an anti-stick coating to prevent the raw materials from adhering to the inner wall. The volume of the storage bin 1 can be adjusted according to actual needs. The inner diameter of the transition pipe 4 is circular, and the outer circle of the lower end of the spiral blade 112 is in contact with the inner wall of the transition pipe 4 along the circumferential direction to ensure that the raw materials can enter the extrusion tube evenly. A receiving block 42 is fixed to the upper end of the transition pipe 4, and the receiving block 42 is laterally provided with an avoidance groove 421 connected to the transition pipe 4. One side of the baffle 41 is located in the avoidance groove 421 and is in contact with the inner wall of the avoidance groove 421.

[0036] Reference Figure 1 and Figure 2 The driving member 5 includes a lifting cylinder 51 and a push plate 52 corresponding to each baffle 41. A connecting block 411 is fixed to the lower end of the baffle 41. The connecting block 411 passes through the receiving block 42 and is slidably connected to the receiving block 42 in the horizontal direction. A moving ring 43 is slidably connected to the outer side of the transition pipe 4 along the axial direction. One end of the push plate 52 is vertically hinged to the corresponding connecting block 411, and the other end is hinged to the moving ring 43. The lifting cylinder 51 is fixedly connected to the transition pipe 4 to drive the moving ring 43 to move. When the moving ring 43 moves, the push plate 52 pushes the connecting block 411 to achieve lateral movement of the baffle 41, thereby effectively controlling the flow path of the raw materials. After the raw materials in the storage bin 1 are completely stirred, the baffle 41 enters the avoidance groove 421, allowing the raw materials to enter the extrusion pipe under the push of the spiral blade 112.

[0037] Reference Figure 2 and Figure 3A retaining ring 44 is slidably connected to the inner wall of the transition tube 4 along the axial direction. The transition tube 4 is provided with an annular groove adapted to the retaining ring 44. The retaining ring 44 is located in the annular groove and, guided by the annular groove, slides along the axial direction of the transition tube 4. A moving block 441 is fixed to the outer circumference of the retaining ring 44. The moving block 441 passes through the transition tube 4 and is slidably connected to the transition tube 4 along the axial direction of the transition tube 4. When the moving block 441 moves, it drives the retaining ring 44 to move. A connecting rod 6 is provided between the moving ring 43 and the moving block 441. The connecting rod 6 includes an upper rod 61, a lower rod 62, and a positioning spring 63. The upper rod 61 is fixedly connected to the moving block 441. When the upper rod 61 moves, it drives the retaining ring 44 to move through the moving block 441.

[0038] Reference Figure 2 and Figure 3 When the movable ring 43 moves, the lower rod 62 is driven to move along the guide hole 611, and the positioning spring 63 is located in the guide hole 611, and one end of the positioning spring 63 is fixedly connected to the upper rod 61, and the other end is fixedly connected to the lower rod 62. In the natural state of the positioning spring 63, the upper rod 61 is pushed away from the lower rod 62, so that when the lower rod 62 moves, the upper rod 61 is driven to move. When the baffle 41 enters the avoidance groove 421, the baffle ring 44 closes the avoidance groove 421 under the drive of the connecting rod 6, and the outer circle of the lower rod 62 is fixedly provided with a positioning plate 621 corresponding to the upper rod 61. When the positioning plate 621 conflicts with the lower end of the upper rod 61, the baffle 41 is in a positioning state.

[0039] Reference Figure 1 and Figure 2 An auger 21 is provided along the length of the extrusion tube for pushing the raw material. After the raw material passes through the transition tube 4 and enters the extrusion tube, the auger 21 drives the raw material toward the cutting mechanism 3. The extrusion tube includes a circular tube portion 22 and a fixed disk 23. The circular tube portion 22 is fixedly connected to the lower end of the transition tube 4. The end of the circular tube portion 22 away from the storage bin 1 is open. The fixed disk 23 is located at the opening and seals the opening. A positioning bolt is provided between the fixed disk 23 and the circular tube portion 22. The fixed disk 23 and the circular tube portion 22 are detachably connected by the positioning bolt. The cutting mechanism 3 is located at the end of the circular tube portion 22 away from the transition tube 4. After the extrusion process of part of the raw material is completed, the fixed disk 23 is disassembled by removing the positioning bolt, which facilitates cleaning of the interior of the circular tube portion 22, making the maintenance and cleaning of the extrusion tube more convenient.

[0040] Reference Figure 1 and Figure 2The cutting mechanism 3 includes a cutting disc 31 and a cutting motor 32. The cutting disc 31 is rotatably connected to the fixed disc 23. The fixed disc 23 is provided with a plurality of extrusion ports 24 along the axial direction. The plurality of extrusion ports 24 are evenly arranged circumferentially along the cutting disc 31. A threaded tube 25 is fixed at the extrusion port 24. A limiting tube 26 is provided at one end of the threaded tube 25 away from the extrusion tube. The limiting tube 26 is located between the cutting disc 31 and the extrusion tube. An internal threaded ring 261 is rotatably connected to the outer side of the limiting tube 26. The internal threaded ring 261 is threadedly connected to the threaded tube 25. The internal threaded ring 261 cooperates with the threaded tube 25 to limit the limiting tube 26 at the extrusion port 24, so that the raw material of the round tube is extruded along the extrusion port 24 and the limiting tube 26 in turn. The limiting tube 26 limits the raw material so that the raw material forms an appropriate diameter. The limiting tube 26 is detachable, making it easy to replace different types. A plurality of cutters 311 are fixedly provided along the circumference of the outer circle of the cutting disk 31. The cutters 311 correspond one-to-one to the extrusion ports 24. The cutting motor 32 is fixedly connected to the fixed disk 23 and is used to drive the cutting disk 31 to rotate. When the cutting disk 31 rotates, the food raw materials extruded from the limiting tube 26 are cut.

[0041] The pet food extruder disclosed herein utilizes a transition tube 4 and a baffle 41 disposed between a storage bin 1 and an extrusion tube, thereby enabling gradual addition and thorough stirring of the raw materials. During initial placement of the raw materials, baffle 41 is closed, and the raw materials are thoroughly stirred within the storage bin 1 before gradually entering the transition tube 4. This prevents the raw materials from entering the extrusion tube directly without stirring. This not only improves the quality of the initial food particles, but also extends the service life of the stirring motor 12, reduces maintenance costs, enhances the flexibility and applicability of the equipment, simplifies the operating process, and reduces production costs.

[0042] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A pet food extruder, comprising a storage bin (1), wherein the lower end of the storage bin (1) is connected to an extrusion tube, and the end of the extrusion tube away from the storage bin (1) is provided with a cutting mechanism (3), characterized in that: The storage bin (1) is provided with a rotating rod (11), and a stirring motor (12) for driving the rotating rod (11) to rotate is fixedly provided at the upper end of the storage bin (1), and a plurality of stirring rods (111) are fixedly provided on the rotating rod (11) along the circumferential direction, and one end of the stirring rod (111) away from the rotating rod (11) contacts the inner wall of the storage bin (1), and a spiral blade (112) is fixedly provided on the lower end of the rotating rod (11) along the axial direction. A transition pipe (4) is fixedly provided between the storage bin (1) and the extrusion pipe, and a baffle (41) is provided in the transition pipe (4), and the baffle (41) is located below the spiral blade (112) and contacts the spiral blade (112). The baffle (41) is slidably connected to the transition pipe (4) in the transverse direction. The transition pipe (4) is provided with a driving member (5) for driving the baffle (41) to move, and an auger (21) for pushing the raw material to move is provided in the extrusion pipe along the length direction.

2. A pet food extruder according to claim 1, characterized in that: The inner diameter of the transition pipe (4) is circular, and the outer circle of the lower end of the spiral blade (112) is in contact with the inner wall of the transition pipe (4) along the circumferential direction.

3. The pet food extruder according to claim 1, characterized in that: The upper end of the transition pipe (4) is fixedly provided with a receiving block (42), and the receiving block (42) can also be provided with a avoidance groove (421) in communication with the transition pipe (4) in the transverse direction. One side of the baffle (41) is located in the avoidance groove (421) and is in contact with the inner wall of the avoidance groove (421). The driving member (5) includes a lifting cylinder (51) and a push plate (52) corresponding to the baffle (41) in a one-to-one manner. The lower end of the baffle (41) is fixedly provided with a connecting block (411). The connecting block (411) passes through the receiving block (42) and is slidably connected to the receiving block (42) in the transverse direction. The outer side of the transition pipe (4) is slidably connected with a moving ring (43) in the axial direction. One end of the push plate (52) is hinged to the corresponding connecting block (411) in the vertical direction, and the other end is hinged to the moving ring (43). The lifting cylinder is fixedly connected to the transition pipe (4) and is used to drive the moving ring (43) to move.

4. A pet food extruder according to claim 3, characterized in that: The inner wall of the transition tube (4) is slidably connected with a retaining ring (44) along the axial direction. The transition tube (4) is provided with an annular groove adapted to the retaining ring (44). A moving block (441) is fixedly provided on the outer circle of the retaining ring (44). The moving block (441) passes through the transition tube (4) and is slidably connected with the transition tube (4) along the axial direction of the transition tube (4). A connecting rod (6) is provided between the moving ring (43) and the moving block (441). When the moving ring (43) moves, the moving block (441) is driven to move by the connecting rod (6).

5. The pet food extruder according to claim 4, characterized in that: The connecting rod (6) comprises an upper rod (61), a lower rod (62) and a positioning spring (63); the upper rod (61) is fixedly connected to the moving block (441); a guide hole (611) is provided at the lower end of the upper rod (61); the upper end of the lower rod (62) is located in the guide hole (611) and fits the inner wall of the guide hole (611); the moving ring (43) is fixedly connected to the lower rod (62); a positioning plate (621) corresponding to the upper rod (61) is fixedly provided on the outer circle of the lower rod (62); the positioning spring (63) is located in the guide hole (611); one end of the positioning spring (63) is fixedly connected to the upper rod (61) and the other end is fixedly connected to the lower rod (62); in a natural state, the positioning spring (63) pushes the upper rod (61) away from the lower rod (62).

6. The pet food extruder according to claim 1, characterized in that: The extrusion tube is provided with a plurality of extrusion ports (24) at one end away from the storage bin (1). The cutting mechanism (3) comprises a cutting disc (31) and a cutting motor (32). The cutting disc (31) is rotatably connected to the extrusion tube. The plurality of extrusion ports (24) are evenly arranged along the circumference of the cutting disc (31). The outer circle of the cutting disc (31) is fixedly provided with a plurality of cutters (311) along the circumference. The cutters (311) correspond to the extrusion ports (24) one by one. The cutting motor (32) is fixedly connected to the extrusion tube and is used to drive the cutting disc (31) to rotate.

7. The pet food extruder according to claim 6, characterized in that: A threaded tube (25) is fixedly provided at the extrusion port (24), and a limiting tube (26) is provided at one end of the threaded tube (25) away from the extrusion tube. The limiting tube (26) is located between the cutting disc (31) and the extrusion tube. An internal threaded ring (261) is rotatably connected to the outer side of the limiting tube (26), and the internal threaded ring (261) is threadedly connected to the threaded tube (25).

8. The pet food extruder according to claim 1, characterized in that: The extrusion tube comprises a circular tube portion (22) and a fixed disk (23). The circular tube portion (22) is fixedly connected to the lower end of the transition tube (4), and an opening is provided at one end of the circular tube portion (22) away from the storage bin (1). The fixed disk (23) is located at the opening and blocks the opening. A positioning bolt is provided between the fixed disk (23) and the circular tube portion (22). The fixed disk (23) and the circular tube portion (22) are detachably connected via the positioning bolt. The cutting mechanism (3) is located at one end of the circular tube portion (22) away from the transition tube (4).

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