A fish feed feeding device for aquaculture

Abstract

This invention discloses a fish feed feeding device for aquaculture, including a floating plate with a disc-shaped design. A support plate is fixedly mounted on the upper surface of the floating plate, and a limiting block is provided on the upper surface of the support plate. A feeding cylinder is rotatably connected to the surface of the limiting block. This fish feed feeding device is equipped with a protective baffle and a third gear. When the device is not in operation, the protective baffle shields one end of the discharge pipe, preventing rainwater and impurities from entering and thus preventing the feed inside the discharge pipe and feeding cylinder from being disturbed and spoiled, improving feed preservation performance, increasing the device's anti-impurity protection performance, and reducing fish disease and mortality. When feeding is needed, a second motor drives the support column and connecting rod to rotate, causing the connecting rod to drive the third gear and protective baffle to rotate via a transmission gear plate, thereby exposing the discharge pipe for operation, improving the practicality of the device.

Description

Technical Field

[0001] This invention relates to the field of fish farming technology, specifically to a fish feed feeding device for aquaculture. Background Technology

[0002] Aquaculture is an important part of agricultural production, encompassing various aquatic animals such as fish, shrimp, and shellfish. Due to the limited natural resources and environmental constraints faced by the fishing industry, people are paying more attention to and promoting the development of commercial aquaculture. Fish farming is a crucial component of aquaculture, playing a vital role in providing food protein, developing recreational fishing for sightseeing, and providing seedlings for fish release and propagation activities. There are various methods of fish farming, with the main methods that heavily utilize formulated feeds including pond farming, cage farming, and recirculating aquaculture systems. Pond farming involves artificially digging ponds and stocking them with fish. Cage farming involves placing fish in various types of cages in the ocean, lakes, or rivers. Recirculating aquaculture systems treat and recycle the water used for aquaculture, with careful management of water flow and level during the process.

[0003] Fish farming currently uses a large amount of compound feed, which is produced and processed by mechanized production. Its main components include protein, fat, carbohydrates, vitamins and mineral salts. When designing feed formulas, the required levels of nutrients such as protein and fat for the fish are first determined according to the species and growth stage of the farmed fish. Then, based on the nutritional levels of different feed ingredients, various ingredients are mixed in a certain proportion for processing and production.

[0004] When using formulated feed for fish farming, the use of feeding devices is very common. This can greatly reduce labor intensity and save labor. The feeding device is placed in the center of the fish pond, which can distribute the feed evenly in the water as much as possible. This is especially effective for raising fish that are not strong swimmers. However, since the feed is discharged through the discharge pipe, external impurities and rainwater can easily enter the feed cylinder after the feed is added, causing the feed to deteriorate and become moldy, thus affecting the quality of the feed. Fish that eat spoiled feed are prone to getting sick and dying, reducing the practicality of the feeding device. Summary of the Invention

[0005] The purpose of this invention is to provide a fish feed feeding device for aquaculture, in order to solve the problems mentioned in the background art, where, due to the discharge of feed through the discharge pipe, external impurities and rainwater can easily enter the feed cylinder after the feed is fed, causing the feed to deteriorate and become moldy, thus affecting the quality of the feed. Fish that consume the deteriorated feed are prone to illness and death, reducing the practicality of the feeding device.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a fish feed feeding device for aquaculture, comprising a floating plate, which is disc-shaped; a support plate is fixedly mounted on the upper surface of the floating plate; a limit block is provided on the upper surface of the support plate; a feeding cylinder is rotatably connected to the surface of the limit block; a transmission roller is mounted on the surface of the support plate; a first gear is fixedly connected to the upper surface of the feeding cylinder; a discharge pipe is installed through the lower side surface of the feeding cylinder; a feed box is fixedly connected to the surface of the floating plate; a feed hole is opened at the upper end of the feed box; a first motor is fixedly mounted inside the feed box; and a cavity is provided inside the feed box. A drive shaft is rotatably connected to the top surface of the feed box cavity. An auxiliary scraper is fixedly connected to the outer surface of the drive shaft. A clearing blade is fixed to the lower outer surface of the drive shaft. A second gear is rotatably connected inside the feed box. A second motor is fixed inside the feeding cylinder. The feeding cylinder has a cavity inside, and a support column is rotatably connected to the bottom surface of the cavity. An opening is provided on the side of the feeding cylinder, and a connecting rod is provided on the inner wall of the opening. A transmission gear plate is fixedly connected to one end of the connecting rod. A third gear is rotatably connected to the outer surface of the feeding cylinder, and a protective baffle is fixedly connected to one end of the shaft of the third gear.

[0007] Preferably, the floating plate is disc-shaped, the transmission roller is arranged in a ring relative to the support plate, the bottom surface of the feeding cylinder cavity is conical, and the upper end of the feeding cylinder has an opening.

[0008] Using the above technical solution, when using this device, it is first placed in a pond using a floating plate. Then, the lower end of the feeding cylinder is easily installed and limited by a support plate, making it easy for the feeding cylinder to rotate during operation. At the same time, the transmission rollers arranged in a ring support the lower surface of the feeding cylinder, thereby improving the stability of the feeding cylinder during rotation and reducing vibration. During operation, the feed is easily poured in through the opening on the upper surface of the feeding cylinder, improving the practicality of this device.

[0009] Preferably, the inner wall of the feed box cavity is inclined, the feed box and the feeding cylinder are rotatably connected, the output end of the first motor passes through the inner wall of the feed box, and the output end of the first motor is fixedly connected to the upper end of the transmission shaft.

[0010] Using the above technical solution, when using this device, the feed is first poured into the cavity inside the feed box through the feed hole on the upper surface of the feed box. Then, the output end of the first motor drives the drive shaft to rotate, which drives the auxiliary scraper on the surface to stir the raw materials, thereby improving the uniformity of the raw materials and improving the feeding effect. Then, the raw materials are fed into the feeding cylinder through the lower end of the feed box, which improves the feeding efficiency.

[0011] Preferably, the auxiliary scraper has the same shape as the inner wall of the feed box cavity, the unblocking blade has a spiral design, a sprocket is provided at one end of the shaft of the second gear, a sprocket is provided at the output end of the first motor, and a transmission chain is provided between the sprocket of the first motor and the sprocket of the second gear, and the second gear and the first gear form a meshing connection.

[0012] Using the above technical solution, when using this device, the inner wall of the feed box cavity is first scraped and cleaned by the surface of the auxiliary scraper, thereby preventing feed from sticking and improving the feeding and subsequent cleaning effect of the device. Furthermore, the rotation of the drive shaft drives the unblocking blades to rotate, and the spiral design of the unblocking blades will drive the feed to be fed quickly, providing pressure to prevent feed blockage. The output end of the first motor drives the second gear to rotate through the transmission chain, so that the second gear drives the first gear to rotate through meshing, and the first gear drives the feeding cylinder to rotate, which facilitates the feeding cylinder to rotate and feed the feed through the discharge pipe, making the feed evenly fed and improving the practicality of the device.

[0013] Preferably, the output end of the second motor is fixedly connected to the lower end of the support column, the connecting rod passes through the side surface of the feeding cylinder, the transmission tooth plate is arc-shaped, and the surface of the transmission tooth plate is provided with tooth blocks. The transmission tooth plate is meshed with the third gear through the tooth blocks.

[0014] By adopting the above technical solution, when using this device, the output end of the second motor first drives the support column to rotate, which in turn drives the connecting rod on the outer surface to rotate. This causes the connecting rod to drive the transmission gear plate at one end to move, and the teeth on the surface of the transmission gear plate mesh to drive the third gear to rotate. The third gear then drives the protective baffle at one end to rotate, which facilitates the protective baffle changing its blocking state on the discharge pipe and does not interfere with the discharge of material. Subsequently, when not in operation, the protective baffle rotates to reset, thereby shielding and protecting the discharge pipe and preventing external impurities and rainwater from entering and affecting the feed, thus improving the practicality of this device.

[0015] Preferably, a material control mechanism is provided between the feeding cylinder and the feeding box, which facilitates the control of raw material discharge through the cooperation of the feeding plate and the sealing plate.

[0016] By adopting the above technical solution, when using this device, the feeding cylinder and the feeding box are connected by a material control mechanism. When the device is working, the material control mechanism controls the discharge of feed. When not working, the openings on the surfaces of the feeding plate and the sealing plate are staggered to seal each other, thereby blocking the feed and preventing it from entering the feeding cylinder. This further prevents the feed from interacting with each other and deteriorating, thus improving the practicality of the device.

[0017] Preferably, the material control mechanism includes a feeding plate, which is fixedly connected to the inner wall of the lower cavity of the feeding box, and a sealing plate is fixedly connected to the upper surface of the support column.

[0018] By adopting the above technical solution, when using this device, the feed plate is first fixed to the inner wall of the lower cavity of the feed box. Then, during operation, the feed is discharged from the feed box by controlling the relative position of the sealing plate and the feed plate. This facilitates automatic adjustment according to the usage, improves the preservation effect of the feed, prevents the feed from interfering with each other and deteriorating after multiple feedings, and improves the practicality of the device during operation.

[0019] Preferably, the surface of the feeding plate is provided with a feeding port, the surface of the sealing plate is provided with a discharge port, and the position of the discharge port of the sealing plate corresponds to the position of the feeding port of the feeding plate.

[0020] Using the above technical solution, when using this device, the feeding plate is first blocked by the sealing plate to control the feed. When discharge is required, the second motor drives the support column to rotate, which in turn drives the connecting rod and the transmission gear plate to rotate. The transmission gear plate then drives the third gear and the protective baffle to rotate through the toothed blocks, facilitating the discharge pipe to discharge the feed. At the same time, the support column drives the sealing plate to rotate, so that the opening between the sealing plate and the feeding plate corresponds, thus facilitating the discharge of feed and improving the practicality of the device.

[0021] Compared with the prior art, the beneficial effects of the present invention are: the fish feed feeding device for aquaculture:

[0022] 1. Equipped with a protective baffle and a third gear, the device protects one end of the discharge pipe from rainwater and impurities when not in operation, preventing feed spoilage inside the discharge pipe and feeding cylinder, thus improving feed preservation performance, enhancing the device's anti-impurity protection, and reducing fish disease and mortality. When feeding is required, the second motor drives the support column and connecting rod to rotate, which in turn drives the third gear and protective baffle through the transmission gear plate, exposing the discharge pipe for operation, thus improving the device's practicality.

[0023] 2. Equipped with a feeding plate and a sealing plate, this device seals the feed in the feeding box during operation, preventing the feed between the feeding box and the feeding cylinder from affecting each other, thereby improving feed quality and facilitating feed storage. Furthermore, when the support column and connecting rod drive the transmission gear plate to rotate, causing the third gear to drive the protective baffle to rotate, the support column drives the sealing plate to rotate, ensuring that the openings between the sealing plate and the feeding plate correspond. This facilitates quick feed feeding according to usage, reduces feed waste, and improves the practicality of the device.

[0024] 3. Equipped with auxiliary scrapers and unblocking blades, this device allows feed to be introduced into the feed box through the feed inlet during operation. The first motor then drives the transmission shaft to rotate, which in turn drives the auxiliary scraper to rotate. This facilitates the scraper's movement and ensures even mixing of the feed, improving the feeding efficiency. During feeding, the auxiliary scraper removes feed adhering to the inner wall of the feed box, reducing waste and facilitating subsequent cleaning. The transmission shaft also drives the unblocking blades, whose spiral shape facilitates feed feeding, improving efficiency, preventing blockages, and enhancing the device's practicality.

[0025] 4. The device is equipped with a support plate and transmission rollers. During operation, the limiting block on the surface of the support plate can easily limit the feeding cylinder, facilitating its rotation and feeding. As the feeding cylinder rotates, the transmission rollers support it, thereby improving the stability of the feeding cylinder's movement. Furthermore, the annular transmission rollers guide the feeding cylinder, reducing vibration and enhancing the device's practicality. Attached Figure Description

[0026] Figure 1 This is a three-dimensional structural diagram of the connection between the floating plate and the support plate of the present invention;

[0027] Figure 2 This is a three-dimensional structural diagram of the connection between the support plate and the feeding cylinder of the present invention;

[0028] Figure 3 This is a three-dimensional structural diagram of the connection between the support plate and the transmission roller of the present invention;

[0029] Figure 4 This is a three-dimensional structural diagram of the connection between the feed box and the feed hole of the present invention;

[0030] Figure 5 This is a three-dimensional structural diagram of the connection between the feeding cylinder and the feeding box of the present invention;

[0031] Figure 6 This is a three-dimensional structural diagram of the connection between the first motor and the transmission shaft of the present invention;

[0032] Figure 7 This is a three-dimensional structural diagram of the connection between the feeding cylinder and the first gear of the present invention;

[0033] Figure 8 This is a three-dimensional structural diagram of the connection between the support column and the connecting rod of the present invention;

[0034] Figure 9 This is a schematic diagram of the three-dimensional structure of the material cutting plate of the present invention;

[0035] Figure 10 This is a three-dimensional structural diagram of the connection between the third gear and the protective baffle of the present invention.

[0036] In the diagram: 1. Floating plate; 2. Support plate; 3. Transmission roller; 4. Feeding cylinder; 5. First gear; 6. Discharge pipe; 7. Feed box; 8. Feed hole; 9. First motor; 10. Transmission shaft; 11. Auxiliary scraper; 12. Unblocking blade; 13. Second gear; 14. Second motor; 15. Support column; 16. Connecting rod; 17. Transmission gear plate; 18. Third gear; 19. Protective baffle; 20. Discharge plate; 21. Sealing plate. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] Please see Figure 1-10 This invention provides a technical solution: a fish feed feeding device for aquaculture, comprising a float plate 1, a support plate 2, a transmission roller 3, a feeding cylinder 4, a first gear 5, a discharge pipe 6, a feed box 7, a feed hole 8, a first motor 9, a transmission shaft 10, an auxiliary scraper 11, a clearing blade 12, a second gear 13, a second motor 14, a support column 15, a connecting rod 16, a transmission gear plate 17, a third gear 18, a protective baffle 19, a discharge plate 20, and a sealing plate 21. The float plate 1 is disc-shaped, and the support plate 2 is fixedly mounted on the upper surface of the float plate 1. The transmission roller 3 is annular relative to the support plate 2. The bottom surface of the feeding cylinder 4 cavity is conical, and the upper end of the feeding cylinder 4 has an opening. When using this device, the feed is first introduced into the feeding box 7 through the feed hole 8 for storage. During operation, the second motor 14 drives the support column 15 to rotate, which in turn drives the connecting rod 16 on the surface to move. The connecting rod 16 drives the transmission gear plate 17 at one end to rotate, which in turn drives the third gear 18 to rotate through the tooth block. At the same time, the third gear 18 drives the protective baffle 19 to rotate, so that the opening of the discharge pipe 6 is exposed after the protective baffle 19 rotates, thus facilitating the feeding of feed by this device.

[0039] The upper surface of the support plate 2 is provided with a limiting block, and the surface of the limiting block of the support plate 2 is rotatably connected to the feeding cylinder 4. The inner wall of the cavity of the feeding box 7 is inclined. The feeding box 7 and the feeding cylinder 4 are rotatably connected. The output end of the first motor 9 passes through the inner wall of the feeding box 7, and the output end of the first motor 9 is fixedly connected to the upper end of the transmission shaft 10. When not working, the openings of the feeding plate 20 and the sealing plate 21 are mutually sealed to prevent feed from entering the feeding cylinder 4. When the support column 15 rotates, it drives the sealing plate 21 to rotate, so that the opening of the sealing plate 21 corresponds to the opening of the feeding plate 20, thereby facilitating the feed to enter the feeding cylinder 4 and preventing the feed from interfering with each other and deteriorating after being fed.

[0040] A transmission roller 3 is installed on the surface of the support plate 2. A first gear 5 is fixedly connected to the upper surface of the feeding cylinder 4. The shape of the auxiliary scraper 11 is the same as the inner wall of the cavity of the feeding box 7. The unblocking blade 12 is spirally designed. A sprocket is provided at one end of the shaft of the second gear 13. A sprocket is provided at the output end of the first motor 9. A transmission chain is provided between the sprocket of the first motor 9 and the sprocket of the second gear 13. The second gear 13 and the first gear 5 are meshed. At the same time, the first motor 9 drives the transmission shaft 10 to rotate, causing the auxiliary scraper 11 to rotate, so that the auxiliary scraper 11 stirs and mixes the feed. Then, the feed is introduced into the feeding cylinder 4 through the lower end of the feeding box 7. When the first motor 9 is working, the output end of the first motor 9 drives the second gear 13 to rotate through the transmission chain. The second gear 13 drives the first gear 5 and the feeding cylinder 4 to rotate through the tooth block, so that the feeding cylinder 4 discharges the feed through the discharge pipe 6, which improves the uniformity of feed feeding.

[0041] A discharge pipe 6 is installed through the lower side surface of the feeding cylinder 4. A feed box 7 is fixedly connected to the surface of the floating plate 1, and a feed hole 8 is opened at the upper end of the feed box 7. The output end of the second motor 14 is fixedly connected to the lower end of the support column 15. The connecting rod 16 passes through the side surface of the feeding cylinder 4. The transmission tooth plate 17 has an arc design, and tooth blocks are provided on the surface of the transmission tooth plate 17. The transmission tooth plate 17 is meshed with the third gear 18 through the tooth blocks. When the transmission shaft 10 rotates, the transmission shaft 10 drives the unblocking blade 12 to rotate, so that the unblocking blade 12 drives the feed, thereby improving the feeding efficiency of the device during operation and preventing feed blockage, thus improving the practicality of the device.

[0042] A first motor 9 is fixed inside the feed box 7. The feed box 7 has a cavity inside, and a drive shaft 10 is rotatably connected to the top surface of the cavity. An auxiliary scraper 11 is fixedly connected to the outer surface of the drive shaft 10. A clearing blade 12 is fixed to the lower outer surface of the drive shaft 10. A second gear 13 is rotatably connected inside the feed box 7. A second motor 14 is fixed inside the feeding cylinder 4. A material control mechanism is provided between the feeding cylinder 4 and the feed box 7. The mechanism facilitates the control of raw material discharge through the cooperation of the discharge plate 20 and the sealing plate 21. The material control mechanism includes a feeding plate 20, which is fixedly connected to the inner wall of the lower cavity of the feeding box 7. A sealing plate 21 is fixedly connected to the upper surface of the support column 15. After the first gear 5 drives the feeding cylinder 4 to rotate, the limiting block on the surface of the support plate 2 limits the feeding cylinder 4, which improves the stability of the feeding cylinder 4 when rotating. Furthermore, the rotation of the feeding cylinder 4 is guided by the annular transmission roller 3, thereby reducing the vibration generated by the rotation of the feeding cylinder 4, which helps to reduce wear and increase service life.

[0043] The feeding cylinder 4 has an internal cavity, and a support column 15 is rotatably connected to the bottom surface of the cavity. An opening is provided on the side of the feeding cylinder 4, and a connecting rod 16 is provided on the inner wall of the opening. A transmission gear plate 17 is fixedly connected to one end of the connecting rod 16. A third gear 18 is rotatably connected to the outer surface of the feeding cylinder 4, and a protective baffle 19 is fixedly connected to one end of the shaft of the third gear 18. A discharge port is provided on the surface of the discharge plate 20, and a sealing plate 21 is provided on its surface. It has a discharge port, and the position of the discharge port of the sealing plate 21 corresponds to the position of the discharge port of the feeding plate 20. When not in operation, the protective baffle 19 covers one end of the discharge pipe 6, thereby preventing external impurities and rainwater from entering and causing the feed inside the feeding cylinder 4 to deteriorate. At the same time, the openings on the surfaces of the feeding plate 20 and the sealing plate 21 are misaligned, thereby preventing the connection between the feeding box 7 and the feeding cylinder 4, further protecting the feed in the feeding box 7 for storage, and improving the protective performance of this device.

[0044] Working principle: When using this aquaculture fish feed feeding equipment, the feed is first introduced into the feed box 7 through the feed inlet 8. Then, the first motor 9 drives the drive shaft 10 to rotate, which in turn rotates the auxiliary scraper 11 to stir the feed. The second motor 14 drives the support column 15 and the connecting rod 16 to rotate, which in turn drives the third gear 18 and the protective baffle 19 to rotate through the transmission gear plate 17, making it easier to expose the opening of the discharge pipe 6. At the same time, the rotation of the support column 15 drives the sealing plate 21 to rotate, so that the sealing plate 21 corresponds to the opening of the feed plate 20, which facilitates the feed entering the feeding cylinder 4. The first motor 9 drives the second gear 13 to rotate through the transmission chain, which in turn drives the first gear 5 to rotate, which facilitates the feeding cylinder 4 and the discharge pipe 6 to discharge the feed, increasing the overall practicality.

[0045] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fish feed feeding device for aquaculture, comprising a floating plate (1) having a disc-shaped design, a support plate (2) fixedly disposed on the upper surface of the floating plate (1), a limiting block disposed on the upper surface of the support plate (2), and a feeding cylinder (4) rotatably connected to the surface of the limiting block of the support plate (2), and a transmission roller (3) mounted on the surface of the support plate (2), characterized in that: A first gear (5) is fixedly connected to the upper surface of the feeding cylinder (4), and a discharge pipe (6) is installed through the lower side surface of the feeding cylinder (4). A feeding box (7) is fixedly connected to the surface of the floating plate (1), and a feeding hole (8) is opened at the upper end of the feeding box (7). A first motor (9) is fixedly installed inside the feeding box (7). A cavity is provided inside the feeding box (7), and a drive shaft (10) is rotatably connected to the top surface of the cavity of the feeding box (7). An auxiliary scraper (11) is fixedly connected to the outer surface of the drive shaft (10), and a clearing blade (12) is fixed to the lower outer surface of the drive shaft (10). The inside of the feeding box (7) is rotatably connected to a second gear (13), the inside of the feeding cylinder (4) is fixed with a second motor (14), the inside of the feeding cylinder (4) is provided with a cavity, and the bottom surface of the cavity of the feeding cylinder (4) is rotatably connected to a support column (15), the side of the feeding cylinder (4) is provided with an opening, and the inner wall of the opening of the feeding cylinder (4) is provided with a connecting rod (16), one end of the connecting rod (16) is fixedly connected to a transmission gear plate (17), the outer surface of the feeding cylinder (4) is rotatably connected to a third gear (18), and one end of the shaft of the third gear (18) is fixedly connected to a protective baffle (19); The floating plate (1) is designed in a disc shape, the transmission roller (3) is arranged in a ring relative to the support plate (2), the bottom surface of the cavity of the feeding cylinder (4) is designed in a conical shape, and the upper end of the feeding cylinder (4) is provided with an opening; The inner wall of the cavity of the feed box (7) is inclined. The feed box (7) and the feeding cylinder (4) are rotatably connected. The output end of the first motor (9) passes through the inner wall of the feed box (7) and the output end of the first motor (9) is fixedly connected to the upper end of the transmission shaft (10). The auxiliary scraper (11) has the same shape as the inner wall of the cavity of the feed box (7), the unblocking blade (12) is spirally designed, one end of the shaft of the second gear (13) is provided with a sprocket, the output end of the first motor (9) is provided with a sprocket, and a transmission chain is provided between the sprocket of the first motor (9) and the sprocket of the second gear (13), and the second gear (13) and the first gear (5) form a meshing connection; The output end of the second motor (14) is fixedly connected to the lower end of the support column (15). The connecting rod (16) passes through the side surface of the feeding cylinder (4). The transmission tooth plate (17) is arc-shaped and has tooth blocks on its surface. The transmission tooth plate (17) is meshed with the third gear (18) through the tooth blocks.

2. The fish feed feeding device for aquaculture according to claim 1, characterized in that: A material control mechanism is provided between the feeding cylinder (4) and the feeding box (7), which cooperates with the feeding plate (20) and the sealing plate (21) to facilitate the control of raw material discharge.

3. The fish feed feeding device for aquaculture according to claim 2, characterized in that: The material control mechanism includes a feeding plate (20), which is fixedly connected to the inner wall of the lower cavity of the feed box (7), and a sealing plate (21) is fixedly connected to the upper surface of the support column (15).

4. The fish feed feeding device for aquaculture according to claim 3, characterized in that: The surface of the feeding plate (20) is provided with a feeding port, and the surface of the sealing plate (21) is provided with a discharge port, and the position of the discharge port of the sealing plate (21) corresponds to the position of the feeding port of the feeding plate (20).

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