Strip extruding device for processing pet food

Abstract

The invention relates to the field of pet food, and discloses a strip extruding device for processing pet food, which comprises a strip extruding machine, the outer wall of the strip extruding machine is provided with a strip extruding opening, the upper surface of the strip extruding machine is fixedly connected with a stirring tank, the inner wall of the stirring tank is connected with a gear ring, the top end of the gear ring is fixedly connected with a support frame, and the support frame is fixedly connected with a rotating shaft. A first motor is fixedly connected to the upper surface of the supporting frame, the output end of the first motor is rotationally connected to the interior of the supporting frame and fixedly connected with a stirring rod, a round block is fixedly connected to the outer wall of the stirring rod, a supporting strip is fixedly connected to the outer wall of the round block, and a first rotating column is rotationally connected to the interior of the supporting strip. All areas in the stirring tank can be covered by the rotating and reciprocating spray head, so that the situation that local moisture is too much or too little is avoided, the humidity of materials is integrally kept consistent, stirring and mixing of the materials are facilitated, the stirring effect is improved, the time of the whole stirring process is shortened, and the production efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of pet food, and specifically to an extrusion device for processing pet food. Background Art

[0002] With the increasing attention of people to pets, the pet food market has gradually become an important part of the global consumer goods industry. The health and nutritional needs of pets have led to an increased demand for high-quality pet food. To meet the market demand for diverse, nutritious, and delicious pet food, more advanced technologies and equipment are used in the production process, such as extrusion devices. Through the extrusion device, manufacturers can produce foods of various shapes, sizes, and hardnesses according to the taste requirements of different pets. For example, dog food can be made into forms such as granules, strips, and flakes, which are not only convenient for pets to eat but also can attract the attention of pets in terms of shape and improve their appetite.

[0003] In the production process of pet food, when using an extrusion device for production, various material raw materials are first put into a mixing tank according to precise formula ratios. During the mixing process, the addition of moisture is crucial. The addition of moisture is achieved through a spray head installed in the mixing tank to make the entire material system more uniform and reduce the possibility of material caking.

[0004] However, in the prior art, the method of adding moisture by the spray head is single, it is difficult to cover all areas in the mixing tank, there are mixing dead corners, resulting in too much or too little local moisture, it is difficult to keep the material humidity consistent, it is difficult to promote the turning and mixing of the material, the mixing effect is not good, the newly added moisture cannot be fully integrated with the original material, and the material uniformity is poor. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides an extrusion device for processing pet food, which solves the problems in the prior art that the method of adding moisture by the spray head is single, it is difficult to cover all areas in the mixing tank, there are mixing dead corners, resulting in too much or too little local moisture, it is difficult to keep the material humidity consistent, it is difficult to promote the turning and mixing of the material, the mixing effect is not good, the newly added moisture cannot be fully integrated with the original material, and the material uniformity is poor.

[0006] To achieve the above objectives, the present invention is realized through the following technical solutions: An extruding device for processing pet food, comprising an extruder, an extrusion opening is arranged on the outer wall of the extruder, a stirring tank is fixedly connected to the upper surface of the extruder, a toothed ring is connected to the inner wall of the stirring tank, a support frame is fixedly connected to the top end of the toothed ring, a first motor is fixedly connected to the upper surface of the support frame, the output end of the first motor is rotatably connected inside the support frame and fixedly connected to a stirring rod, a round block is fixedly connected to the outer wall of the stirring rod, a support bar is fixedly connected to the outer wall of the round block, a first rotating column is rotatably connected inside the support bar, a first gear is fixedly connected to the outer wall of the first rotating column, the outer wall of the first gear is meshed and connected to the inner wall of the toothed ring, a scraping rod is fixedly connected to the outer wall of the first rotating column, the outer wall of the scraping rod is connected to the inner wall of the stirring tank, a water adding mechanism is arranged on the outer wall of the round block, a rotating mechanism is arranged inside the support bar, and a lifting mechanism is arranged on the upper surface of the extruder.

[0007] Preferably, the water adding mechanism comprises a U-shaped block, the outer wall of the U-shaped block is fixedly connected to the outer wall of the round block, a cylinder is fixedly connected inside the U-shaped block, a threaded cover is threadedly connected to the outer wall of the cylinder, and a first connecting pipe is fixedly connected to the bottom end of the cylinder.

[0008] Preferably, the water adding mechanism further comprises a slider, the outer wall of the slider is slidably connected to the inner wall of the U-shaped block, a fixing frame is fixedly connected to the lower surface of the slider, a water pump is fixedly connected to the inner top wall of the fixing frame, a second connecting pipe is fixedly connected to the output end of the water pump, the other end of the second connecting pipe is fixedly connected to a spray head, the outer wall of the spray head is fixedly connected inside the fixing frame, and the other end of the first connecting pipe is fixedly connected to the input end of the water pump.

[0009] Preferably, the water adding mechanism further comprises a rectangular frame, the outer wall of the rectangular frame is fixedly connected to the outer wall of the slider.

[0010] Preferably, the rotating mechanism comprises a second rotating column, the outer wall of the second rotating column is rotatably connected inside the support bar, a second gear is fixedly connected to the outer wall of the second rotating column, and the tooth end of the second gear is meshed and connected to the tooth end of the first gear.

[0011] Preferably, the rotating mechanism further comprises a crank, the outer wall of the crank is fixedly connected to the outer wall of the second rotating column, a sliding column is fixedly connected inside the crank, and the outer wall of the sliding column is slidably connected to the inner wall of the rectangular frame.

[0012] Preferably, the lifting mechanism comprises a support block, the lower surface of the support block is fixedly connected to the upper surface of the extruder, a second motor is fixedly connected to the outer wall of the support block, the output end of the second motor is rotatably connected inside the support block and fixedly connected to a worm, and the outer wall of the worm is rotatably connected inside the support block.

[0013] Preferably, the lifting mechanism further includes a worm gear, the tooth end of the worm gear is meshed and connected with the tooth end of the worm, a lead screw is fixedly connected inside the worm gear, the bottom end of the lead screw is rotatably connected to the upper surface of the extrusion machine, the top end of the lead screw is rotatably connected to a fixing plate, and the outer wall of the fixing plate is fixedly connected to the outer wall of the stirring tank.

[0014] Preferably, the lifting mechanism further includes a moving plate, the inside of the moving plate is threadedly connected to the outer wall of the lead screw, a guide post is slidably connected inside the moving plate, the bottom end of the guide post is fixedly connected to the upper surface of the extrusion machine, and the top end of the guide post is fixedly connected to a second fixing block, and the outer wall of the second fixing block is fixedly connected to the outer wall of the stirring tank.

[0015] Preferably, the lifting mechanism further includes a sliding block, the lower surface of the sliding block is fixedly connected to the upper surface of the moving plate, the outer wall of the sliding block is slidably connected inside the second fixing block, an L-shaped block is fixedly connected to the upper surface of the second fixing block, and the lower surface of the L-shaped block is fixedly connected to the top end of the gear ring.

[0016] Working principle: When the first motor is started, the stirring rod rotates to stir the materials inside the stirring tank. During the rotation of the stirring rod, the round block is driven to rotate, and the first rotating column is driven to rotate through the support bar, so that the first gear meshed with the gear ring on the outer wall of the first rotating column rotates, and the scraping rod is driven to rotate through the first rotating column. During the rotation of the scraping rod, it will contact the inner wall of the stirring tank. During the rotation of the scraping rod, it can continuously scrape off the materials adhered to the inner wall of the stirring tank and make them participate in the stirring again, ensuring the uniformity of the materials.

[0017] When stirring the materials, start the water pump. The water pump starts to pump out the water in the cylinder through the first connecting pipe, transports it to the inside of the nozzle through the second connecting pipe, and finally sprays out through the nozzle. During the process of starting the first motor to make the stirring rod rotate, through the rotation of the second rotating column, the nozzle is driven to rotate at the same time to add water to the materials being stirred inside the stirring tank. At the same time, under the action of the rotating mechanism, the slider reciprocates and slides inside the second rotating column, so that the nozzle reciprocates while rotating to add water to the materials being stirred inside the stirring tank.

[0018] After use, when it is necessary to clean the stirring rod, scraping rod and the inner wall of the stirring tank, start the second motor. The start of the second motor causes the worm to rotate, which in turn causes the worm wheel to drive the screw rod to rotate. When the screw rod rotates, it rotates inside the moving plate and causes the moving plate to move upward and slide on the outer wall of the guide post. During the upward movement of the moving plate, the sliding block fixedly connected to its upper surface will move upward and slide inside the second fixed block, so that the sliding block drives the L-shaped block to move upward. When the L-shaped block moves upward, it drives the support frame to move upward through the gear ring, and then the stirring rod moves upward and moves out of the stirring tank. At this time, the stirring rod and the inner wall of the stirring tank can be cleaned.

[0019] The present invention provides an extruding device for processing pet food. It has the following beneficial effects: 1. Through the rotating and reciprocating nozzle, the present invention can cover various areas inside the stirring tank, avoiding the situation of excessive or insufficient moisture in local areas, keeping the humidity of the material consistent as a whole, contributing to promoting the turning and mixing of the material, improving the stirring effect. The rotating and reciprocating nozzle disperses the moisture into fine water droplets, which can avoid a large amount of moisture concentrating in a certain part, resulting in over-wet local materials and reducing the possibility of material caking. It can reach the ideal humidity state in a relatively short time, thereby shortening the time of the entire stirring process and improving production efficiency.

[0020] 2. During the rotation process, the scraping rod of the present invention continuously scrapes off the material adhering to the inner wall of the stirring tank, making it participate in the stirring again, ensuring the uniformity of the material. At the same time, it can also fully stir the material near the inner wall of the stirring tank, improving the overall stirring efficiency, shortening the stirring time, and reducing the difficulty and workload of cleaning after production.

[0021] 3. After the stirring rod is moved out by the lifting mechanism, the present invention can clean the inside of the stirring tank without obstruction, including the barrel wall, barrel bottom and the installation part of the stirring rod, etc., which are prone to residual pet food raw materials and dirt, preventing the residual substances from deteriorating and affecting the quality of subsequent products.

[0022] 4. Through the lifting of the stirring rod, the present invention makes it more convenient to clean the stirring rod alone. The components on the stirring rod can be carefully cleaned to remove the adhering material, extending the service life of the stirring rod and ensuring its stirring performance. At the same time, when the stirring rod fails, it can be conveniently moved out of the stirring tank, and the fault location and damage degree can be determined more intuitively and quickly, facilitating the maintenance personnel to formulate a maintenance plan. Description of the Drawings

[0023] Figure 1 is a three-dimensional view of the present invention; Figure 2 is a partial structural schematic diagram of the support frame of the present invention; Figure 3 Schematic diagram of the local structure of the round block of the present invention; Figure 4 Schematic diagram of the local structure of the U-shaped block of the present invention; Figure 5 Schematic diagram of the local structure of the first gear of the present invention; Figure 6 Schematic diagram of the local structure of the fixing plate of the present invention.

[0024] Among them, 1. Extrusion machine; 2. Extrusion port; 3. Stirring tank; 4. Tooth ring; 5. Support frame; 6. First motor; 7. Stirring rod; 8. Round block; 9. Support bar; 10. First rotating column; 11. First gear; 12. Scraping rod; 13. U-shaped block; 14. Cylinder; 15. Threaded cap; 16. Fixing frame; 17. Water pump; 18. First connecting pipe; 19. Second connecting pipe; 20. Sprayer; 21. Slide block; 22. Second gear; 23. Second rotating column; 24. Crank; 25. Slide column; 26. Rectangular frame; 27. Support block; 28. Second motor; 29. Worm; 30. Worm gear; 31. Lead screw; 32. Fixing plate; 33. Moving plate; 34. Guide post; 35. Second fixing block; 36. Sliding block; 37. L-shaped block. Specific embodiments

[0025] Next, in combination with the drawings of the present invention, the technical solutions of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0026] Please refer to the attached Figure 1 -attached Figure 6 , the embodiment of the present invention provides an extrusion device for processing pet food, including an extrusion machine 1, an extrusion port 2 is arranged on the outer wall of the extrusion machine 1, a stirring tank 3 is fixedly connected to the upper surface of the extrusion machine 1, a tooth ring 4 is connected to the inner wall of the stirring tank 3, a support frame 5 is fixedly connected to the top of the tooth ring 4, a first motor 6 is fixedly connected to the upper surface of the support frame 5, the output end of the first motor 6 is rotatably connected inside the support frame 5 and fixedly connected to a stirring rod 7, a round block 8 is fixedly connected to the outer wall of the stirring rod 7, a support bar 9 is fixedly connected to the outer wall of the round block 8, a first rotating column 10 is rotatably connected inside the support bar 9, a first gear 11 is fixedly connected to the outer wall of the first rotating column 10, the outer wall of the first gear 11 is meshed with the inner wall of the tooth ring 4, a scraping rod 12 is fixedly connected to the outer wall of the first rotating column 10, the outer wall of the scraping rod 12 is connected to the inner wall of the stirring tank 3, a moisture addition mechanism is arranged on the outer wall of the round block 8, a rotating mechanism is arranged inside the support bar 9, and a lifting mechanism is arranged on the upper surface of the extrusion machine 1.

[0027] Specifically, during use, the material is poured into the interior of the stirring tank 3 for stirring. The stirred material is extruded by the extrusion machine 1 and extruded through the extrusion port 2 to form strips. The gear ring 4 can fix the support frame 5, and the support frame 5 can support the first motor 6. By starting the first motor 6, the stirring rod 7 can be driven to rotate to stir the material inside the stirring tank 3. During the rotation of the stirring rod 7, the round block 8 is driven to rotate. When the round block 8 rotates, the rotating column one 10 is driven to rotate through the support bar 9, so that the gear one 11 meshed with the outer wall of the rotating column one 10 and the gear ring 4 rotates, and the scraping rod 12 is driven to rotate through the rotating column one 10. During the rotation of the scraping rod 12, it will contact the inner wall of the stirring tank 3. During the rotation of the scraping rod 12, the material adhered to the inner wall of the stirring tank 3 can be continuously scraped off, enabling it to participate in the stirring again, ensuring the uniformity of the material. The rotation of the scraping rod 12 can also fully stir the material near the inner wall of the stirring tank 3, making it better mixed with the material in other parts, thereby improving the overall stirring efficiency and shortening the stirring time. During production, the scraping rod 12 can prevent the material from accumulating on the inner wall of the stirring tank 3, reducing the difficulty and workload of cleaning after production ends.

[0028] Please refer to the attached Figure 1 - attached Figure 5 , the moisture addition mechanism includes a U-shaped block 13. The outer wall of the U-shaped block 13 is fixedly connected to the outer wall of the round block 8. A cylinder 14 is fixedly connected inside the U-shaped block 13. A threaded cover 15 is threadedly connected to the outer wall of the cylinder 14. A first connecting pipe 18 is fixedly connected to the bottom end of the cylinder 14. The moisture addition mechanism further includes a slider 21. The outer wall of the slider 21 is slidably connected to the inner wall of the U-shaped block 13. A fixing frame 16 is fixedly connected to the lower surface of the slider 21. A water pump 17 is fixedly connected to the inner top wall of the fixing frame 16. The output end of the water pump 17 is fixedly connected to a second connecting pipe 19. The other end of the second connecting pipe 19 is fixedly connected to a spray head 20. The outer wall of the spray head 20 is fixedly connected inside the fixing frame 16. The other end of the first connecting pipe 18 is fixedly connected to the input end of the water pump 17. The moisture addition mechanism further includes a rectangular frame 26. The outer wall of the rectangular frame 26 is fixedly connected to the outer wall of the slider 21.

[0029] Specifically, when stirring the material, the water pump 17 is started. When the water pump 17 is started, the water in the cylinder 14 is pumped out through the first connecting pipe 18 and conveyed to the inside of the nozzle 20 through the second connecting pipe 19 and finally sprayed out through the nozzle 20. During the process of starting the first motor 6 to make the stirring rod 7 rotate, the rotation of the second rotating column 23 drives the nozzle 20 to rotate at the same time, adding water to the material being stirred inside the stirring tank 3. At the same time, under the action of the rotating mechanism, the slider 21 reciprocates and slides on the inner wall of the second rotating column 23, so that the nozzle 20 reciprocates while rotating to add water to the material being stirred inside the stirring tank 3. The rotating and reciprocating nozzle 20 can cover each area inside the stirring tank 3, avoiding the situation of excessive or insufficient local moisture, and keeping the humidity of the material consistent as a whole. The movement of the nozzle 20 helps to promote the turning and mixing of the material, enabling the newly added water to better blend with the original material, improving the stirring effect, and making the entire material system more uniform. The rotating and reciprocating nozzle 20 disperses the water into fine water droplets and sprays them evenly on the material, which can avoid a large amount of water concentrating in a certain part, causing the local material to be too wet and reducing the possibility of material caking. Since the water is added evenly and the material mixing effect is good, the ideal humidity state can be achieved in a relatively short time, thus shortening the time of the entire stirring process and improving production efficiency.

[0030] Please refer to the attached Figure 1 -attached Figure 5 , the rotating mechanism includes the second rotating column 23. The outer wall of the second rotating column 23 is rotatably connected inside the support bar 9. A second gear 22 is fixedly connected to the outer wall of the second rotating column 23, and the tooth ends of the second gear 22 are meshed with the tooth ends of the first gear 11; the rotating mechanism further includes a crank 24. The outer wall of the crank 24 is fixedly connected to the outer wall of the second rotating column 23, and a sliding column 25 is fixedly connected inside the crank 24. The outer wall of the sliding column 25 is slidably connected to the inner wall of the rectangular frame 26.

[0031] Specifically, the function of the rotating mechanism is to make the slider 21 reciprocate. Specifically, during the rotation of the first gear 11, the first gear 11 drives the second gear 22 to rotate, so that the second rotating column 23 rotates inside the support bar 9. During the rotation of the second rotating column 23, the second rotating column 23 drives the sliding column 25 to rotate through the crank 24. During the process of the sliding column 25 rotating and sliding on the inner wall of the rectangular frame 26, the rectangular frame 26 drives the slider 21 to reciprocate and slide inside the U-shaped block 13, so that the slider 21 can reciprocate.

[0032] Please refer to the attached Figure 1 and attached Figure 6The lifting mechanism includes a support block 27, the lower surface of the support block 27 is fixedly connected to the upper surface of the extruder 1, the outer wall of the support block 27 is fixedly connected to a motor 28, the output end of the motor 28 is rotatably connected to the inside of the support block 27 and fixedly connected to a worm 29, and the outer wall of the worm 29 is rotatably connected to the inside of the support block 27; the lifting mechanism also includes a worm gear 30, the tooth end of the worm gear 30 is meshed with the tooth end of the worm 29, the inside of the worm gear 30 is fixedly connected to a screw rod 31, the bottom end of the screw rod 31 is rotatably connected to the upper surface of the extruder 1, the top end of the screw rod 31 is rotatably connected to a fixed plate 32, and the outer wall of the fixed plate 32 is fixedly connected to the outer wall of the mixing tank 3 The lifting mechanism also includes a movable plate 33, the internal thread of the movable plate 33 is connected to the outer wall of the screw rod 31, and the internal sliding connection of the movable plate 33 is provided with a guide column 34, the bottom end of the guide column 34 is fixedly connected to the upper surface of the extruder 1, and the top of the guide column 34 is fixedly connected to a fixed block 35, and the outer wall of the fixed block 35 is fixedly connected to the outer wall of the mixing tank 3; the lifting mechanism also includes a sliding block 36, the lower surface of the sliding block 36 is fixedly connected to the upper surface of the movable plate 33, and the outer wall of the sliding block 36 is slidably connected to the inside of the fixed block 35, and the upper surface of the fixed block 35 is fixedly connected with an L-shaped block 37, and the lower surface of the L-shaped block 37 is fixedly connected to the top of the gear ring 4.

[0033] Specifically, when the stirring rod 7, the scraper rod 12 and the inner wall of the stirring tank 3 need to be cleaned after use, the motor 28 is started. The motor 28 starts to rotate the worm 29, and then the worm wheel 30 drives the screw rod 31 to rotate. When the screw rod 31 rotates, it will rotate inside the movable plate 33 and cause the movable plate 33 to move upward and slide on the outer wall of the guide column 34. In the process of moving upward, the movable plate 33 will drive the sliding block 36 fixedly connected to its upper surface to move upward and slide inside the fixed block 2 35, so that the sliding block 36 passes through and drives the L-shaped block 37 to move upward. When the L-shaped block 37 moves upward, it drives the support frame 5 to move upward through the gear ring 4, so that the stirring rod 7 moves upward and moves out of the stirring tank 3. At this time, the stirring rod 7 and the inner wall of the stirring tank 3 can be cleaned. After the stirring rod 7 is moved out by the lifting mechanism, the inside of the stirring tank 3 can be fully cleaned without hindrance, including the cylinder wall, the cylinder bottom and the stirring rod 7 installation position and other places where pet food raw materials and dirt are easily left, so as to prevent the residual substances from deteriorating and affecting the quality of subsequent products. At the same time, the stirring rod 7 can be lifted and lowered to make it easier to clean the stirring rod 7 alone, and the parts on the stirring rod 7 can be carefully cleaned to remove the adhering materials, thereby extending the service life of the stirring rod 7 and ensuring its stirring performance. At the same time, when the stirring rod 7 fails, it can be easily removed from the stirring tank 3, and the fault location and damage degree can be determined more intuitively and quickly, which is convenient for maintenance personnel to formulate maintenance plans.

[0034] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art will appreciate that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An extrusion device for processing pet food, comprising an extruder (1), characterized in that: The outer wall of the extruder (1) is provided with an extrusion port (2); the upper surface of the extruder (1) is fixedly connected to a stirring tank (3); the inner wall of the stirring tank (3) is connected to a gear ring (4); the top of the gear ring (4) is fixedly connected to a support frame (5); the upper surface of the support frame (5) is fixedly connected to a motor 1 (6); the output end of the motor 1 (6) is rotatably connected to the inside of the support frame (5) and is fixedly connected to a stirring rod (7); the outer wall of the stirring rod (7) is fixedly connected to a round block (8); the outer wall of the round block (8) is fixedly connected to a support frame (5); The support bar (9) is rotatably connected to a rotating column (10) inside the support bar (9), a gear (11) is fixedly connected to the outer wall of the rotating column (10), the outer wall of the gear (11) is meshingly connected to the inner wall of the gear ring (4), a scraper (12) is fixedly connected to the outer wall of the rotating column (10), the outer wall of the scraper (12) is connected to the inner wall of the stirring tank (3), a water adding mechanism is arranged on the outer wall of the round block (8), a rotating mechanism is arranged inside the support bar (9), and a lifting mechanism is arranged on the upper surface of the extruder (1).

2. The extrusion device for processing pet food according to claim 1, characterized in that: The moisture adding mechanism comprises a U-shaped block (13), the outer wall of the U-shaped block (13) is fixedly connected to the outer wall of the round block (8), the interior of the U-shaped block (13) is fixedly connected to a cylinder (14), the outer wall of the cylinder (14) is threadedly connected to a threaded cover (15), and the bottom end of the cylinder (14) is fixedly connected to a connecting pipe 1 (18).

3. The extrusion device for processing pet food according to claim 2, characterized in that: The water adding mechanism further comprises a slider (21), the outer wall of the slider (21) being slidably connected to the inner wall of the U-shaped block (13), the lower surface of the slider (21) being fixedly connected to a fixing frame (16), the inner top wall of the fixing frame (16) being fixedly connected to a water pump (17), the output end of the water pump (17) being fixedly connected to a second connecting pipe (19), the other end of the second connecting pipe (19) being fixedly connected to a nozzle (20), the outer wall of the nozzle (20) being fixedly connected to the inside of the fixing frame (16), and the other end of the first connecting pipe (18) being fixedly connected to the input end of the water pump (17).

4. The extrusion device for processing pet food according to claim 3, characterized in that: The moisture adding mechanism further comprises a rectangular frame (26), the outer wall of the rectangular frame (26) being fixedly connected to the outer wall of the sliding block (21).

5. The extrusion device for processing pet food according to claim 1, characterized in that: The rotating mechanism comprises a second rotating column (23), the outer wall of which is rotatably connected to the inside of the support bar (9), the outer wall of which is fixedly connected to a second gear (22), the tooth end of which is meshingly connected to the tooth end of the first gear (11).

6. The extrusion device for processing pet food according to claim 5, characterized in that: The rotating mechanism further comprises a crank (24), the outer wall of the crank (24) being fixedly connected to the outer wall of the second rotating column (23), the interior of the crank (24) being fixedly connected to a sliding column (25), the outer wall of the sliding column (25) being slidably connected to the inner wall of the rectangular frame (26).

7. The extrusion device for processing pet food according to claim 1, characterized in that: The lifting mechanism comprises a support block (27), the lower surface of the support block (27) being fixedly connected to the upper surface of the extruder (1), the outer wall of the support block (27) being fixedly connected to a second motor (28), the output end of the second motor (28) being rotatably connected to the inside of the support block (27) and fixedly connected to a worm (29), and the outer wall of the worm (29) being rotatably connected to the inside of the support block (27).

8. The extrusion device for processing pet food according to claim 7, characterized in that: The lifting mechanism further comprises a worm wheel (30), the tooth end of the worm wheel (30) being meshedly connected with the tooth end of the worm (29), a screw rod (31) being fixedly connected inside the worm wheel (30), the bottom end of the screw rod (31) being rotatably connected to the upper surface of the extruder (1), the top end of the screw rod (31) being rotatably connected to a fixing plate (32), the outer wall of the fixing plate (32) being fixedly connected to the outer wall of the stirring tank (3).

9. The extrusion device for processing pet food according to claim 7, characterized in that: The lifting mechanism further comprises a movable plate (33), the internal thread of the movable plate (33) being connected to the outer wall of the screw rod (31), the interior of the movable plate (33) being slidably connected to a guide column (34), the bottom end of the guide column (34) being fixedly connected to the upper surface of the extruder (1), the top end of the guide column (34) being fixedly connected to a second fixed block (35), the outer wall of the second fixed block (35) being fixedly connected to the outer wall of the stirring tank (3).

10. The extrusion device for processing pet food according to claim 7, characterized in that: The lifting mechanism further comprises a sliding block (36), the lower surface of the sliding block (36) being fixedly connected to the upper surface of the moving plate (33), the outer wall of the sliding block (36) being slidably connected to the interior of the second fixed block (35), the upper surface of the second fixed block (35) being fixedly connected to an L-shaped block (37), and the lower surface of the L-shaped block (37) being fixedly connected to the top of the gear ring (4).

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