A live pig breeding quantitative feeding device

Abstract

The present application relates to the technical field of feeding device, disclose a kind of live pig breeding quantitative feeding device, including bottom plate, further comprising: trough, the trough is slidably installed on the upper surface of bottom plate, for receiving feed;Storage tank, a plurality of discharge pipes are uniformly fixedly installed on the outer surface of one side near the bottom of the storage tank, which are communicated with the inside thereof, the feed stored in the storage tank is discharged into the trough through the discharge pipe;Cleaning mechanism, the cleaning mechanism is installed in the trough, for cleaning the feed residues in the trough.The present application moves the trough to the cleaning station by the stepping motor, forcibly ejects the feed adhered to the inner wall by using the material supporting plate, and pushes it into the receiving box for collection by the scraper, which can completely clean the inner wall of the trough, effectively avoid the residual feed to be eaten by pigs after mildew, so as to reduce the risk of disease and protect the health of live pigs.

Description

Technical Field

[0001] This invention relates to the field of feeding device technology, and in particular to a quantitative feeding device for pig farming. Background Technology

[0002] Automatic feeding devices have been widely used in large-scale pig farming. Existing quantitative feeding devices typically achieve automatic feed dispensing through feed hoppers, weighing sensors, and conveying mechanisms, which improves feeding efficiency and reduces labor costs to some extent. During the feeding process, saliva and moisture mix with the feed and easily adhere to the inner wall of the feed trough, especially in wet-mixed feed or porridge-feeding modes, where residue is more prominent.

[0003] In existing systems, new feed is usually poured directly into the feed trough before each feeding, without cleaning the old feed left on the inner wall of the trough after the previous feeding. Because the environment inside the feed trough is humid and the temperature is suitable, the leftover feed is very easy to mold or rot. If new feed is put directly on top of it or mixed with it, pigs are likely to accidentally eat the spoiled feed, increasing the risk of disease and seriously affecting the health and growth performance of pigs. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a quantitative feeding device for pig farming.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A quantitative feeding device for pig farming includes a base plate and further includes: Feed trough, which is slidably mounted on the upper surface of the base plate for receiving feed; A storage bin, wherein multiple discharge pipes connected to the interior are uniformly fixedly installed on the outer surface of the storage bin near its bottom, and the feed stored in the storage bin is discharged into the feed trough through the discharge pipes; A cleaning mechanism is installed inside the feed trough and is used to clean feed residue inside the feed trough.

[0006] As a further embodiment of the present invention, the cleaning mechanism includes a support box fixedly installed on the upper surface of the base plate, a discharge port is provided through the outer surface of the support box on the side away from the discharge pipe, a receiving box is installed on the upper surface of the base plate near the discharge port, a sliding support plate is installed on the inner wall of the material trough, a limiting component is installed between the support plate and the material trough, and a lifting component for pushing the support plate upward is also installed inside the material trough.

[0007] As a further embodiment of the present invention, the limiting component includes a spring rod fixedly installed at the bottom of both ends of the material support plate, and a locking block is fixedly installed at the telescopic end of the spring rod. The inner wall of the material trough near the bottom of the material support plate is provided with a locking groove that matches the locking block, and the locking block can be locked into the locking groove.

[0008] As a further embodiment of the present invention, the lifting assembly includes a lifting plate slidably installed on the inner wall of the material trough. Multiple guide rods are fixedly installed on the lower surface of the lifting plate. The bottom ends of the multiple guide rods penetrate the lower surface of the lifting plate and are fixedly installed with limit rings. A support spring is sleeved on the outer surface of the guide rod. The support spring is disposed between the lifting plate and the lifting plate. A lifting assembly is installed between the upper surface of the base plate and the lifting plate.

[0009] As a further embodiment of the present invention, the lifting assembly includes a fixed plate fixedly installed on the upper surface of the base plate, a guide groove is provided through the outer surface of the fixed plate, guide posts are fixedly installed at both ends of the lifting plate, the guide posts are slidably installed with the inner wall of the guide groove, and an unlocking assembly is installed between the lifting plate and the locking block.

[0010] As a further embodiment of the present invention, the unlocking component includes a push block fixedly installed on the upper surface of the lifting plate, and an inclined block fixedly installed on the lower surface of the push block, the top of the push block being able to abut against the inclined surface of the inclined block.

[0011] As a further embodiment of the present invention, the guide groove is composed of a translation section groove, a lifting section groove and a support section groove that are connected in sequence.

[0012] As a further embodiment of the present invention, a shaking component is installed at the bottom of the material support plate. The shaking component includes two fixed seats fixedly installed at the bottom of the material support plate. A storage coil spring is installed on the inner wall of each of the two fixed seats. A support shaft is rotatably installed through the two fixed seats. The free end of the storage coil spring is fixedly installed on the outer surface of the support shaft. A striking rod is eccentrically rotatably installed at both ends of the support shaft. A transmission component is installed between the support shaft and the base plate.

[0013] As a further embodiment of the present invention, the transmission assembly includes a fixed block fixedly mounted on the upper surface of the base plate, a transmission rack fixedly mounted on the outer surface of the fixed block, a transmission gear fixedly mounted on the outer periphery of the support shaft, the transmission rack intermittently meshing with the transmission gear, a stepper motor fixedly mounted on the outer surface of the fixed block, the output end of the stepper motor penetrating the outer surface of the fixed block and fixedly mounted with a transmission lead screw, and the transmission lead screw penetrating the outer surface of the material groove and threadedly connected thereto.

[0014] As a further embodiment of the present invention, an electric telescopic rod is fixedly installed on the outer surface of the support box away from the discharge pipe, a scraper is fixedly installed at the telescopic end of the electric telescopic rod, and a weighing sensor is fixedly installed between the top of the support box and the bottom of the storage box.

[0015] The beneficial effects of this invention are as follows: 1. The feed trough is moved to the cleaning station by a stepper motor. The feed plate is used to force the feed adhering to the inner wall to be pushed out and then pushed into the collection box by a scraper. This can thoroughly clean the inner wall of the feed trough and effectively prevent pigs from accidentally eating the moldy feed residue, thereby reducing the risk of disease and protecting the health of pigs. 2. While the feed plate is lifted by the spring for scraping, the coil spring will drive the striking rod to rotate at high speed through the support shaft, continuously striking the bottom of the feed plate. The vibration function can effectively shake off stubborn feed, greatly improving the cleaning effect and avoiding the labor intensity of manual knocking. 3. Before the feed trough reaches the cleaning station, the limiting component locks the feed plate with the locking block and the locking slot, ensuring that the feed residue inside the feed trough will not be accidentally discharged, and preventing the material from leaking and causing pollution in undesignated locations. Attached Figure Description

[0016] Figure 1 This is a front view schematic diagram of a quantitative feeding device for pig farming proposed in this invention; Figure 2 This is a rear view schematic diagram of a quantitative feeding device for pig farming proposed in this invention; Figure 3 This is a schematic diagram of the support box structure of a quantitative feeding device for pig farming proposed in this invention; Figure 4 This is a schematic cross-sectional view of the feed trough structure of a quantitative feeding device for pig farming proposed in this invention; Figure 5 This is a schematic diagram of the internal structure of the feed trough of a quantitative feeding device for pig farming proposed in this invention; Figure 6 This is a schematic diagram of the slot structure of a quantitative feeding device for pig farming proposed in this invention; Figure 7 This is a schematic diagram of the fixed plate structure of a quantitative feeding device for pig farming proposed in this invention; Figure 8 This is a schematic diagram of the transmission rack structure of a quantitative feeding device for pig farming proposed in this invention; Figure 9 for Figure 5 Enlarged view of the structure at point A in the middle; Figure 10 for Figure 5 Enlarged view of the structure at point B in the middle; Figure 11 for Figure 5 Enlarged view of the structure at point C.

[0017] In the diagram: 1. Base plate; 2. Material trough; 3. Storage box; 4. Weighing sensor; 5. Support box; 6. Discharge pipe; 7. Discharge port; 8. Receiving box; 9. Electric telescopic rod; 10. Scraper; 11. Material support plate; 12. Lifting plate; 13. Guide rod; 14. Limiting ring; 15. Support spring; 16. Spring rod; 17. Locking block; 18. Inclined block; 19. Push block; 20. Guide column; 21. Slot; 22. Fixing plate; 23. Guide groove; 231. Translation section groove; 232. Lifting section groove; 233. Lifting section groove; 24. Fixing block; 25. Transmission rack; 26. Stepper motor; 27. Transmission screw; 28. Fixing seat; 29. ​​Energy storage coil spring; 30. Support shaft; 31. Striking rod; 32. Transmission gear. Detailed Implementation

[0018] 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. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0019] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0020] See attached document Figure 1 - Appendix Figure 11 A quantitative feeding device for pig farming includes a base plate 1, and further includes: Feed trough 2 is slidably installed on the upper surface of the base plate 1 for receiving feed. The outer surface of the feed trough 2 has an opening for the fixed plate 22 and the transmission rack 25 to move. The storage bin 3 has multiple discharge pipes 6 that are evenly fixed on the outer surface of one side near its bottom, and the feed stored in the storage bin 3 is discharged into the feed trough 2 through the discharge pipes 6. The cleaning mechanism is installed inside the feed trough 2 and is used to clean the feed residue inside the feed trough 2.

[0021] In this embodiment, the cleaning mechanism includes a support box 5 fixedly installed on the upper surface of the base plate 1. A discharge port 7 is opened through the outer surface of the support box 5 on the side away from the discharge pipe 6. A receiving box 8 is installed on the upper surface of the base plate 1 near the discharge port 7. A sliding support plate 11 is installed on the inner wall of the material trough 2. A limit component is installed between the support plate 11 and the material trough 2. A lifting component for pushing the support plate 11 upward is also installed inside the material trough 2. The lifting component includes a lifting plate 12 slidably installed on the inner wall of the material trough 2. Multiple guide rods 13 are fixedly installed on the lower surface of the support plate 11. The bottom ends of multiple guide rods 13 penetrate the lower surface of the lifting plate 12 and are fixedly installed with limit rings 14. The outer surface of the guide rods 13 is fitted with support springs 15, which are located between the material support plate 11 and the lifting plate 12. A lifting assembly is installed between the upper surface of the base plate 1 and the lifting plate 12. The limit assembly includes spring rods 16 fixedly installed at the bottom of both ends of the material support plate 11. The telescopic end of the spring rods 16 is fixedly installed with a locking block 17. The inner wall of the material trough 2 near the lower part of the material support plate 11 is provided with a locking groove 21 that matches the locking block 17. The locking block 17 can be locked into the locking groove 21.

[0022] When feed needs to be added to the feed trough 2, the stepper motor 26 drives the transmission screw 27 to rotate, causing the transmission screw 27 to pull the feed trough 2, which is threaded to it, toward the receiving box 8. As the receiving box 8 moves, it will drive the support plate 11 and the lifting plate 12 to move synchronously. When the guide post 20 installed at the end of the lifting plate 12 moves from the translation section groove 231 to the lifting section groove 232, the guide post 20 will drive the lifting plate 12 to lift upward. Since the support plate 11 is locked by the limiting component at this time, the support spring 15 set between the support plate 11 and the lifting plate 12 is compressed and stored, ensuring that the feed remaining on the inner wall of the feed trough 2 will not be discharged before it is completely moved into the support box 5.

[0023] In this embodiment, the lifting assembly includes a fixed plate 22 fixedly installed on the upper surface of the base plate 1. A guide groove 23 is provided through the outer surface of the fixed plate 22. Guide posts 20 are fixedly installed at both ends of the lifting plate 12. The guide posts 20 are slidably installed on the inner wall of the guide groove 23. An unlocking assembly is installed between the lifting plate 12 and the locking block 17. The unlocking assembly includes a push block 19 fixedly installed on the upper surface of the lifting plate 12. An inclined block 18 is fixedly installed on the lower surface of the locking block 17. The top of the push block 19 can abut against the inclined surface of the inclined block 18. The guide groove 23 is composed of a translation section groove 231, a lifting section groove 232 and a support section groove 233 that are connected in sequence. When the guide post 20 slides in the translation section groove 231, the material support plate 11 is locked by the limiting assembly (the locking block 17 is inserted into the locking groove 21), and the support spring 15 between the lifting plate 12 and the lifting plate 12 is in the initial state. The lifting section trough 232 is an inclined upward track. When the guide column 20 passes through it, it is gradually lifted, thereby driving the lifting plate 12 to move upward. Since the material support plate 11 is still locked at this time (the locking block 17 is not pulled out), the rise of the lifting plate 12 will compress the support spring 15 located between it and the material support plate 11, so that the spring stores elastic potential energy, converts the translational motion of the material trough 2 into the upward motion of the lifting plate 12, and completes the spring storage, providing a power source for the subsequent ejection of the material support plate 11. The lifting section groove 233 is located at the top of the lifting section groove 232 and is a horizontal continuous track. After the guide column 20 enters this section groove, the lifting plate 12 stops rising and remains at the highest position. At this position, the push block 19 at the top of the lifting plate 12 just abuts against the inclined surface of the inclined block 18 on the lower surface of the locking block 17. By squeezing, the locking block 17 is pulled out of the locking groove 21, releasing the locking of the material support plate 12.

[0024] When the guide column 20 moves to the top of the lifting section trough 232 and enters the lifting section trough 233, the push block 19 installed at the top of the lifting plate 12 will abut against the inclined surface of the inclined block 18, and push the locking block 17 towards the spring rod 16 by squeezing the inclined block 18, so that the locking block 17 is pulled out from the slot 21, thereby unlocking the feed plate 11. After the feed plate 11 is unlocked, it will be pushed upward under the elastic force of the support spring 15, so that the feed plate 11 can push out the feed adhering to the inner wall of the feed trough 2. When the top surface of the feed plate 11 rises to be flush with the end surface of the feed trough 2, the scraper 10 is pulled by the telescopic end of the electric telescopic rod 9, so that the feed residue on the feed plate 11 can be pushed into the discharge port 7 by the scraper 10 and fall into the receiving box 8 for storage, thereby cleaning the inside of the feed trough 2 and preventing the residual feed from spoiling and being eaten by pigs, which would affect the health of the pigs.

[0025] In this embodiment, a shaking component is installed at the bottom of the material support plate 11. The shaking component includes two fixed seats 28 fixedly installed at the bottom of the material support plate 11. A storage coil spring 29 is installed on the inner wall of each of the two fixed seats 28. A support shaft 30 is rotatably installed between the two fixed seats 28. The free end of the storage coil spring 29 is fixedly installed on the outer surface of the support shaft 30. A striking rod 31 is eccentrically rotatably installed at both ends of the support shaft 30. A transmission component is installed between the support shaft 30 and the base plate 1. The transmission component includes a fixed block 24 fixedly installed on the upper surface of the base plate 1. A transmission rack 25 is fixedly installed on the outer surface of the fixed block 24. A transmission gear 32 is fixedly installed on the outer periphery of the support shaft 30. The transmission rack 25 intermittently meshes with the transmission gear 32. A stepper motor 26 is fixedly installed on the outer surface of the fixed block 24. The output end of the stepper motor 26 passes through the outer surface of the fixed block 24 and is fixedly installed with a transmission screw 27. The transmission screw 27 passes through the outer surface of the material trough 2 and is threadedly connected to it.

[0026] When the feed trough 2 is pulled and the feed plate 11 is not unlocked, the transmission gear 32 will mesh with the transmission rack 25, causing the transmission gear 32 to drive the support shaft 30 to rotate, and the support shaft 30 to store force on the energy storage spring 29. When the feed plate 11 is unlocked and lifted, the transmission gear 32 separates from the transmission rack 25, and the support shaft 30 loses its limit. Under the elastic force of the energy storage spring 29, the support shaft 30 quickly reverses. Since the end of the support shaft 30 is eccentrically mounted with a striking rod 31, the striking rod 31 will continuously strike the bottom of the feed plate 11 under the action of centrifugal force, causing the feed plate 11 to vibrate. This vibration will shake off stubborn feed when the feed plate 11 rises to scrape off the feed adhering to the inner wall of the feed trough 2, thus improving the cleaning effect.

[0027] In this embodiment, an electric telescopic rod 9 is fixedly installed on the outer surface of the support box 5 away from the discharge pipe 6, a scraper 10 is fixedly installed at the telescopic end of the electric telescopic rod 9, and a weighing sensor 4 is fixedly installed between the top of the support box 5 and the bottom of the storage box 3.

[0028] After the feed trough 2 is cleaned, the feed trough 2 is pushed back to its original position by the transmission screw 27. At the same time, the feed support plate 11 will also sink and reset, so that the limiting component locks the feed support plate 11 again, so that new feed can be received later. After the feed trough 2 returns to its original position, the feed is poured into the storage box 3. The feed is weighed by the weighing sensor 4 at the bottom of the storage box 3. After pouring in a certain amount of feed, multiple discharge pipes 6 are opened so that the feed can be evenly injected into the feed trough 2 so that the pigs can eat.

[0029] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects: When feed needs to be added to the feed trough 2, the stepper motor 26 drives the transmission screw 27 to rotate, so that the transmission screw 27 pulls the feed trough 2, which is threaded to it, toward the receiving box 8. While the receiving box 8 moves, it will drive the support plate 11 and the lifting plate 12 to move synchronously. When the guide column 20 installed at the end of the lifting plate 12 moves from the translation section groove 231 to the lifting section groove 232, the guide column 20 will drive the lifting plate 12 to lift upward. Since the support plate 11 is locked by the limiting component at this time, the support spring 15 set between the support plate 11 and the lifting plate 12 is compressed and stored, ensuring that the feed remaining on the inner wall of the feed trough 2 will not be discharged before it is completely moved into the support box 5. When the guide column 20 moves to the top of the lifting section trough 232 and enters the lifting section trough 233, the push block 19 installed at the top of the lifting plate 12 will abut against the inclined surface of the inclined block 18, and push the locking block 17 towards the spring rod 16 by squeezing the inclined block 18, so that the locking block 17 is pulled out from the slot 21, thereby unlocking the feed plate 11; after the feed plate 11 is unlocked, it will be pushed upward under the elastic force of the support spring 15, so that the feed plate 11 can push out the feed adhering to the inner wall of the feed trough 2. When the top surface of the feed plate 11 rises to be flush with the end surface of the feed trough 2, the scraper 10 is pulled by the telescopic end of the electric telescopic rod 9, so that the feed residue on the feed plate 11 can be pushed into the discharge port 7 by the scraper 10 and fall into the receiving box 8 for storage, thereby cleaning the inside of the feed trough 2 and preventing the residual feed from spoiling and being eaten by pigs, which would affect the health of the pigs; When the feed trough 2 is pulled and the feed plate 11 is not unlocked, the transmission gear 32 will mesh with the transmission rack 25, causing the transmission gear 32 to drive the support shaft 30 to rotate, and the support shaft 30 to store force on the energy storage spring 29; when the feed plate 11 is unlocked and lifted, the transmission gear 32 will separate from the transmission rack 25, and the support shaft 30 will lose its limit, causing the support shaft 30 to quickly reverse under the elastic force of the energy storage spring 29. Since the end of the support shaft 30 is eccentrically mounted with a striking rod 31, the striking rod 31 will continuously strike the bottom of the feed plate 11 under the action of centrifugal force, causing the feed plate 11 to vibrate, so that when the feed plate 11 rises to scrape off the feed adhering to the inner wall of the feed trough 2, the stubborn feed will be shaken off by vibration, thus improving the cleaning effect; After the feed trough 2 is cleaned, the feed trough 2 is pushed to reset by the transmission screw 27. At the same time, the feed plate 11 will also sink and reset, so that the limiting component locks the feed plate 11 again so that new feed can be received later. After the feed trough 2 returns to its original position, the feed is poured into the storage box 3. The feed is weighed by the weighing sensor 4 at the bottom of the storage box 3. After pouring in a certain amount of feed, multiple discharge pipes 6 are opened to allow the feed to be evenly injected into the feed trough 2 so that the pigs can eat.

[0030] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A quantitative feeding device for pig farming, comprising a base plate (1), characterized in that, Also includes: Feed trough (2), which is slidably installed on the upper surface of the base plate (1) for receiving feed; The storage bin (3) has multiple discharge pipes (6) that are connected to its interior evenly fixed on the outer surface of one side near its bottom. The feed stored in the storage bin (3) is discharged into the feed trough (2) through the discharge pipes (6). The cleaning mechanism is installed inside the feed trough (2) and is used to clean the feed residue inside the feed trough (2).

2. The quantitative feeding device for pig farming according to claim 1, characterized in that, The cleaning mechanism includes a support box (5) fixedly installed on the upper surface of the base plate (1). The outer surface of the support box (5) away from the discharge pipe (6) is provided with a discharge port (7). A receiving box (8) is installed on the upper surface of the base plate (1) near the discharge port (7). A sliding support plate (11) is installed on the inner wall of the material trough (2). A limiting component is installed between the support plate (11) and the material trough (2). A lifting component for pushing the support plate (11) to move upward is also installed inside the material trough (2).

3. The quantitative feeding device for pig farming according to claim 2, characterized in that, The limiting component includes a spring rod (16) fixedly installed at the bottom of both ends of the material support plate (11). The telescopic end of the spring rod (16) is fixedly installed with a locking block (17). The inner wall of the material trough (2) near the bottom of the material support plate (11) is provided with a locking groove (21) that matches the locking block (17). The locking block (17) can be locked into the locking groove (21).

4. The quantitative feeding device for pig farming according to claim 3, characterized in that, The lifting assembly includes a lifting plate (12) that is slidably installed on the inner wall of the material trough (2). Multiple guide rods (13) are fixedly installed on the lower surface of the material support plate (11). The bottom ends of the multiple guide rods (13) penetrate the lower surface of the lifting plate (12) and are fixedly installed with limit rings (14). A support spring (15) is sleeved on the outer surface of the guide rod (13). The support spring (15) is located between the material support plate (11) and the lifting plate (12). A lifting assembly is installed between the upper surface of the base plate (1) and the lifting plate (12).

5. A quantitative feeding device for pig farming according to claim 4, characterized in that, The lifting assembly includes a fixed plate (22) fixedly installed on the upper surface of the base plate (1). A guide groove (23) is provided through the outer surface of the fixed plate (22). Guide posts (20) are fixedly installed at both ends of the lifting plate (12). The guide posts (20) are slidably installed on the inner wall of the guide groove (23). An unlocking assembly is installed between the lifting plate (12) and the locking block (17).

6. A quantitative feeding device for pig farming according to claim 5, characterized in that, The unlocking component includes a push block (19) fixedly installed on the upper surface of the lifting plate (12), and an inclined block (18) fixedly installed on the lower surface of the locking block (17). The top of the push block (19) can abut against the inclined surface of the inclined block (18).

7. A quantitative feeding device for pig farming according to claim 6, characterized in that, The guide groove (23) consists of a translation section groove (231), a lifting section groove (232), and a support section groove (233) that are connected in sequence.

8. A quantitative feeding device for pig farming according to claim 7, characterized in that, The bottom of the material support plate (11) is equipped with a shaking component. The shaking component includes two fixed seats (28) fixedly installed at the bottom of the material support plate (11). The inner walls of the two fixed seats (28) are equipped with energy storage coil springs (29). A support shaft (30) is rotatably installed between the two fixed seats (28). The free end of the energy storage coil spring (29) is fixedly installed on the outer surface of the support shaft (30). Both ends of the support shaft (30) are eccentrically rotatably equipped with striking rods (31). A transmission component is installed between the support shaft (30) and the base plate (1).

9. A quantitative feeding device for pig farming according to claim 8, characterized in that, The transmission assembly includes a fixed block (24) fixedly installed on the upper surface of the base plate (1). A transmission rack (25) is fixedly installed on the outer surface of the fixed block (24). A transmission gear (32) is fixedly installed on the outer periphery of the support shaft (30). The transmission rack (25) intermittently meshes with the transmission gear (32). A stepper motor (26) is fixedly installed on the outer surface of the fixed block (24). The output end of the stepper motor (26) passes through the outer surface of the fixed block (24) and is fixedly installed with a transmission screw (27). The transmission screw (27) passes through the outer surface of the material groove (2) and is threadedly connected to it.

10. A quantitative feeding device for pig farming according to claim 2, characterized in that, An electric telescopic rod (9) is fixedly installed on the outer surface of the support box (5) away from the discharge pipe (6). A scraper (10) is fixedly installed at the telescopic end of the electric telescopic rod (9). A weighing sensor (4) is fixedly installed between the top of the support box (5) and the bottom of the storage box (3).

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