Pre-feeding feed grinding device for cynoglossus laevis fry culture

Abstract

The invention relates to the technical field of feed grinding, and provides a pre-feeding feed grinding device for cynoglossus laevis fry culture, which comprises a grinding cylinder, a fixed support is fixedly connected to the bottom of the grinding cylinder, a feed grinding assembly is arranged in the grinding cylinder, and a driving structure is arranged between the feed grinding assembly and the fixed support. The bottom of the grinding cylinder communicates with a discharging channel, the top of the grinding cylinder is provided with a feeding channel, the feeding channel communicates with the conveying channel, the side, away from the feeding channel, of the conveying channel communicates with a feeding cavity, and a main material discharging assembly is arranged in the feeding cavity. A feed conveying assembly is arranged in the conveying channel, the number of the feed injection barrels is multiple, and the feed injection barrels are arranged in the conveying channel. By means of the technical scheme, the problem that in the prior art, after a feed grinding device grinds multiple kinds of feed, the multiple kinds of feed are not fully mixed is solved.

Description

Technical Field

[0001] The invention relates to the technical field of feed grinding, and in particular to a pre-feeding feed grinding device for sole fry breeding. Background Art

[0002] Tongue sole is one of the common farmed economic fishes. It is rich in nutrition and is deeply loved by people. In order to meet people's demand for the consumption of tongue sole, people began to carry out artificial breeding of tongue sole. In the process of artificial breeding of tongue sole, the fry of tongue sole needs to be raised and cultivated first. The fry of tongue sole needs to be fed with a variety of feeds to ensure that the fry of tongue sole maintains healthy growth. Because the fry of tongue sole is small, the single feed particles purchased on the market are large in size, which is not convenient for the fry of tongue sole to eat directly. Therefore, the feed particles need to be ground to reduce the volume of the feed particles so that the feed particles can be fed to the fry of tongue sole.

[0003] The fish feed grinding device in the prior art generally includes a grinding cylinder, in which a fixed grinding disc, a moving grinding disc and a circular screen are arranged. The moving grinding disc is driven to rotate by a motor, and feed particles are selectively added into the grinding cylinder. The rotational shear force between the fixed grinding disc and the moving grinding disc is used to grind the feed particles. The ground feed particles are then discharged from the grinding cylinder after being screened by the circular screen, and then the breeders use the ground feed particles to feed tongue sole fry.

[0004] In order to ensure the healthy development of tongue sole fry in the prior art, multiple feeds and various nutrients are often mixed when feeding tongue sole fry with feed. When multiple feeds are mixed and fed in the prior art, it is necessary to ensure that the multiple feeds are mixed evenly after grinding. Because the tongue sole fry are small in size, the problem of single nutrition after the tongue sole fry eats the feed is avoided. In the mixing effect of the multiple feeds during grinding, the problem of insufficient mixing of the multiple feeds is likely to occur because the feeds are small in size after grinding. In addition, because the proportions of different feeds are not consistent, there is a large difference in the proportions of different feeds, and it is not easy to fully mix the multiple feeds after grinding. Summary of the invention

[0005] The invention provides a pre-feeding feed grinding device for sole fry breeding, which solves the problem of insufficient mixing of multiple feeds after the feed grinding device in the related art grinds the multiple feeds.

[0006] The technical solution of the present invention is as follows: A pre-feeding feed grinding device for sole fry breeding, comprising a grinding cylinder, the bottom of which is fixedly connected to a fixed support, a feed grinding assembly is arranged in the grinding cylinder, a driving structure is arranged between the feed grinding assembly and the fixed support, the bottom of the grinding cylinder is connected to a discharge channel, the top of the grinding cylinder is provided with a feed channel, and further comprising: A conveying channel, the feeding channel is connected to the conveying channel, the side of the conveying channel away from the feeding channel is connected to a feeding chamber, the feeding chamber is provided with a main material discharge component, and the conveying channel is provided with a feed conveying component; The injection cylinder is provided with a plurality of injection cylinders, the injection cylinders are arranged in the conveying channel, a plurality of feeds are respectively injected into the conveying channel through the plurality of injection cylinders, and a weighing and feeding component is arranged between the injection cylinder and the conveying channel.

[0007] In order to add the main feed to the transmission conveyor belt, further, the main material discharge assembly includes a semicircular storage barrel and a semicircular material receiving barrel, the semicircular storage barrel is rotatably connected to the feed chamber through a rotating shaft, a first drive motor is provided on the feed chamber, the output end of the first drive motor is fixedly connected to the rotating shaft, the semicircular material receiving barrel is located in the semicircular storage barrel, the semicircular material receiving barrel is fixedly connected to the inner wall of the feed chamber, and a plurality of discharge grooves are provided at the bottom of the semicircular material receiving barrel.

[0008] In order to convey a variety of feeds, further, the feed conveying assembly includes a conveying groove, a driving shaft, a transmission conveyor belt and a second driving motor. The conveying grooves are fixedly connected on both sides of the interior of the conveying channel. A plurality of rotating rings are fixedly connected through the conveying groove. The driving shaft is rotatably arranged between two corresponding rotating rings. A driving wheel is arranged on the driving shaft. The transmission conveyor belt is transmitted between the plurality of driving wheels. A second driving motor is arranged on the conveying channel, and the output end of the second driving motor is fixedly connected to one of the driving shafts.

[0009] In order to make the main feed roll onto the transmission conveyor belt, further, a sloped blanking plate is fixedly connected in the feed chamber, and the sloped blanking plate is located between the semicircular storage barrel and the transmission conveyor belt.

[0010] In order to limit the conveying area of ​​the feed on the transmission conveyor belt, further, an elastic sealing strip is fixedly connected to the outer wall of the conveying groove, and the elastic sealing strip is in contact with the transmission conveyor belt.

[0011] In order to inject corresponding feed into multiple injection cylinders respectively, further, the top of the injection cylinder is connected with a feed pipe, the feed pipe runs through the conveying channel, one side of the feed pipe is connected with a discharge port, the discharge port is provided with a valve, and the top of the feed pipe is connected with a telescopic hose.

[0012] In order to keep the material flowing in the injection barrel, a movable plate is slidably arranged in the injection barrel, a plurality of material dividing plates are fixedly connected to the movable plate, a driving electric cylinder is arranged on the injection barrel, and an output end of the driving electric cylinder is fixedly connected to the movable plate.

[0013] In order to allow a specified amount of supplementary feed to enter the injection cylinder, the weighing and feeding assembly further includes a feeding cylinder and a hoisting weighing device, a flow valve is provided at the bottom of the feeding cylinder, the bottom of the feeding cylinder is connected to the telescopic hose, and the hoisting weighing device is provided between the feeding cylinder and the conveying channel.

[0014] In order to grind a variety of mixed feeds, further, the feed grinding assembly includes an installation ring frame, a fixed grinding disc and a movable grinding disc, the installation ring frame is fixedly connected to the grinding cylinder, a semicircular screening frame is fixedly connected to the installation ring frame, the discharge channel and the feed channel are both connected to the installation ring frame, the fixed grinding disc is fixedly connected to one side of the installation ring frame, and the movable grinding disc is rotatably connected to the other side of the installation ring frame, the fixed grinding disc cooperates with the movable grinding disc, wherein a rotating seat is fixedly connected to the movable grinding disc, and the rotating seat penetrates and is rotatably connected to the grinding cylinder.

[0015] In order to drive the dynamic grinding disc to rotate, the driving structure further includes a third driving motor and a transmission gear. The third driving motor is arranged on the fixed support. The output end of the third driving motor and the rotating seat are both provided with a transmission gear. A transmission toothed belt is arranged between the two transmission gears.

[0016] The working principle and beneficial effects of the present invention are: 1. In the present invention, when it is necessary to grind a variety of feeds, first, the main feed with the largest proportion is added into the semicircular receiving barrel, and then the semicircular receiving barrel is driven to flip along the center point of the rotating shaft, so that the main feed is gradually discharged through a plurality of discharge slots, so that the main feed is discharged onto the surface of the transmission conveyor belt, and then the transmission conveyor belt drives the main feed to move flatly, and then a variety of other feeds are added into the corresponding feeding cylinder, and the weight of the feed in each feeding cylinder is weighed by a hoisting weighing device, and then the weight of the main feed put into the semicircular receiving barrel is judged. The remaining amount of feed that needs to be discharged from each feeding cylinder, multiple feeds will enter the injection cylinder and be discharged. When the main feed is transported on the transmission conveyor belt, multiple injection cylinders will discharge each feed into the main feed in the transportation process, so that the main feed on the transmission conveyor belt and the remaining multiple nutritious feeds can be mixed and transported. When the main feed and the remaining multiple feeds are added to the grinding cylinder, the feed grinding component grinds the multiple feeds, and at this time the multiple feeds will be fully mixed, which is convenient for the subsequent feeding operation of the tongue sole fry. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the structure of a partial cross-section of the present invention; Figure 3 It is a partial cross-sectional structural diagram of the cooperation of the conveying channel, the injection barrel, the semicircular receiving bucket and the transmission conveyor belt in the present invention; Figure 4 It is a schematic diagram of a partial cross-section of the structure of the conveying channel, the main material discharge component, the feed conveying component and the weighing and adding component in the present invention; Figure 5 For the present invention Figure 4 A schematic diagram of the local enlarged structure at point A in the middle; Figure 6 It is a partial cross-sectional structural diagram of the cooperation between the semicircular storage bucket, the first drive motor and the semicircular material receiving bucket in the present invention; Figure 7 It is a schematic diagram of the structure of a partial cross-section of the grinding cylinder, feed grinding assembly and driving structure in the present invention.

[0019] In the figure: 1. grinding cylinder; 2. fixed support; 3. discharge channel; 4. feed channel; 5. conveying channel; 6. feed chamber; 7. injection cylinder; 8. semicircular storage barrel; 9. rotating shaft; 10. first drive motor; 11. semicircular receiving barrel; 12. conveying groove; 13. drive shaft; 14. transmission conveyor belt; 15. second drive motor; 16. sloped blanking plate; 17. elastic sealing strip; 18. feed pipe; 19. discharge port; 20. telescopic hose; 21. moving plate; 22. dividing plate; 23. driving electric cylinder; 24. feeding cylinder; 25. hoisting weighing equipment; 26. mounting ring frame; 27. semicircular screening frame; 28. fixed grinding disc; 29. ​​moving grinding disc; 30. rotating seat; 31. third drive motor; 32. transmission gear; 33. transmission toothed belt. DETAILED DESCRIPTION

[0020] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] like Figures 1 to 7 As shown, this embodiment proposes a pre-feeding feed grinding device for sole fry breeding, comprising a grinding cylinder 1, a fixed support 2 is fixedly connected to the bottom of the grinding cylinder 1, a feed grinding assembly is arranged in the grinding cylinder 1, the feed grinding assembly mounting ring frame 26, a fixed grinding disc 28 and a dynamic grinding disc 29, the mounting ring frame 26 is fixedly connected in the grinding cylinder 1, a semicircular screening frame 27 is fixedly connected in the mounting ring frame 26, a fixed grinding disc 28 is fixedly connected to one side of the mounting ring frame 26, and a dynamic grinding disc 29 is rotatably connected to the other side of the mounting ring frame 26, the fixed grinding disc 28 cooperates with the dynamic grinding disc 29, wherein the dynamic grinding disc 29 A rotating seat 30 is fixedly connected to the grinding cylinder 1, and the rotating seat 30 penetrates and is rotatably connected to the grinding cylinder 1. After the various feeds are mixed and enter the mounting circular frame of the grinding cylinder 1, the dynamic grinding disc 29 and the rotating seat 30 are driven to rotate together. The various feeds are ground by the shear force generated between the dynamic grinding disc 29 and the fixed grinding disc 28 during the rotation process, and then the ground feeds are screened by the semicircular screening frame 27. The feed particles with qualified volume pass through the semicircular screening frame 27 and are discharged, while the feed particles with larger volume continue to be ground between the dynamic grinding disc 29 and the fixed grinding disc 28, thereby ensuring the grinding effect of various feeds; A driving structure is arranged between the feed grinding assembly and the fixed support 2, and the driving structure includes a third driving motor 31 and a transmission gear 32. The third driving motor 31 is arranged on the fixed support 2, and the transmission gear 32 is arranged on the output end of the third driving motor 31 and the rotating seat 30. A transmission toothed belt 33 is arranged between the two transmission gears 32. When it is necessary to drive the movable grinding disc 29 to rotate, the third driving motor 31 is started, and the movable grinding disc 29 and the rotating seat 30 are driven to rotate together through the meshing transmission relationship between the transmission gear 32 and the transmission toothed belt 33.

[0022] The bottom of the grinding cylinder 1 is connected to a discharge channel 3, and the top of the grinding cylinder 1 is provided with a feed channel 4. Both the discharge channel 3 and the feed channel 4 are connected to the mounting ring frame 26. After the various feeds are mixed, they will enter the mounting ring frame 26 through the feed channel 4 for grinding. After the various feeds are ground and moved out of the semicircular screening frame 27, the feeds will enter the discharge channel 3, and finally the feeds will be discharged through the discharge channel 3.

[0023] The feeding chamber 6 is provided with a main material discharge assembly, and the main material discharge assembly includes a semicircular receiving barrel 8 and a semicircular receiving barrel 11. The semicircular receiving barrel 8 is rotatably connected to the feeding chamber 6 through a rotating shaft 9. A first driving motor 10 is provided on the feeding chamber 6. The output end of the first driving motor 10 is fixedly connected to the rotating shaft 9. The semicircular receiving barrel 11 is located in the semicircular receiving barrel 8. The semicircular receiving barrel 11 is fixedly connected to the inner of the feeding chamber 6. On the wall, a plurality of discharge slots are provided at the bottom of the semicircular material receiving barrel 11, and the main feed, which accounts for the largest proportion, is added into the semicircular material receiving barrel 11, and the first drive motor 10 is started to drive the rotating shaft 9 to rotate, and the semicircular storage barrel 8 is driven to flip along the center point of the rotating shaft 9, so that the main feed is gradually discharged through the plurality of discharge slots, and the main feed is discharged onto the surface of the transmission conveyor belt 14. Because the main feed is used in large quantities, the semicircular material receiving barrel 11 is filled, and the injection amount of the main feed can be judged, which is convenient for judging the injection amount of other feeds.

[0024] A feed conveying assembly is arranged in the conveying channel 5, and the feed conveying assembly includes a conveying groove 12, a driving shaft 13, a transmission conveyor belt 14 and a second driving motor 15. The conveying groove 12 is fixedly connected to both sides of the conveying channel 5. A plurality of rotating rings are fixedly connected through the conveying groove 12. A driving shaft 13 is rotatably arranged between two corresponding rotating rings. A driving wheel is arranged on the driving shaft 13. A transmission conveyor belt 14 is transmitted between the plurality of driving wheels. A second driving motor 15 is arranged on the conveying channel 5. The output end of the second driving motor 15 is fixedly connected to one of the driving shafts 13. An elastic sealing strip 17 is fixedly connected to the outer wall of the conveying groove 12. The elastic sealing strip 17 contacts the transmission conveyor belt 14. After the main feed falls onto the transmission conveyor belt 14, the second driving motor 15 is started to drive the driving shaft 13 to rotate, so that the plurality of driving shafts 13 and the plurality of driving wheels rotate between the two conveying grooves 12, and the transmission conveyor belt 14 is driven to convey the main feed. A sloped blanking plate 16 is fixedly connected to the feed chamber 6, and the sloped blanking plate 16 is located between the semicircular storage barrel 8 and the transmission conveyor belt 14. In order to improve the mixing effect between the main feed and the other multiple feeds, the main feed discharged from the discharge chute will first fall onto the surface of the sloped blanking plate 16, and then roll along the top of the sloped blanking plate 16, so that the main feed remains flat and falls onto the surface of the transmission conveyor belt 14.

[0025] The number of injection barrels 7 is set to be multiple, and the injection barrels 7 are arranged in the conveying channel 5. Multiple feeds are respectively added to the conveying channel 5 through the multiple injection barrels 7. The top of the injection barrel 7 is connected with a feeding pipe 18, and the feeding pipe 18 runs through the conveying channel 5. One side of the feeding pipe 18 is connected with a discharge port 19, and a valve is arranged on the discharge port 19. The top of the feeding pipe 18 is connected with a telescopic hose 20. The feed enters the injection barrel 7 through the feeding pipe 18, and the conveying channel 5 and the injection barrel 7 are both inclined. After the feed enters the injection barrel 7, the feed will move along the inner side wall of the injection barrel 7 toward the discharge port 19, and finally the feed is discharged through the discharge port 19 and falls onto the main feed on the transmission conveyor belt 14; A movable plate 21 is slidably arranged in the injection barrel 7, and a plurality of dividing plates 22 are fixedly connected to the movable plate 21. A driving electric cylinder 23 is arranged on the injection barrel 7, and an output end of the driving electric cylinder 23 is fixedly connected to the movable plate 21. When a large amount of feed is added to the injection barrel 7 at one time, in order to avoid the problem of feed accumulation, the driving electric cylinder 23 is started to drive the movable plate 21 and the plurality of dividing plates 22 to move, so that the dividing plates 22 disperse the feed in the injection barrel 7, thereby improving the discharge effect of the feed from the injection barrel 7.

[0026] A weighing and feeding assembly is arranged between the injection cylinder 7 and the conveying channel 5, and the weighing and feeding assembly includes a feeding cylinder 24 and a hoisting weighing device 25. A flow valve is arranged at the bottom of the feeding cylinder 24, and the bottom of the feeding cylinder 24 is connected with the telescopic hose 20. A hoisting weighing device 25 is arranged between the feeding cylinder 24 and the conveying channel 5 to add an appropriate amount of feed into the feeding cylinder 24. The hoisting weighing device 25 is a prior art device in the prior art for real-time detection and weighing of materials inside the cylinder, and is a prior art device well known to those skilled in the art. After determining the filling amount of the main feed, the flow valve is opened to allow the material in the feeding cylinder 24 to enter the injection cylinder 7 through the telescopic hose 20 and the feeding pipe 18, and the telescopic hose 20 ensures that when the feeding cylinder 24 and the feeding pipe 18 are connected, the feeding cylinder 24 can be suspended, so that the hoisting weighing device 25 can accurately measure the feeding cylinder 24.

[0027] The working principle of the pre-feeding feed grinding device for sole fry breeding: First, the main feed is added into the semicircular receiving barrel 11, and then the remaining additional feed is added into the multiple feeding cylinders 24, so that the hoisting weighing device 25 measures the weight of the additional feed in the feeding cylinder 24, and then the first drive motor 10 is started to drive the rotating shaft 9 to rotate, and the semicircular receiving barrel 8 is driven to rotate, and then the semicircular receiving barrel 8 is driven to flip along the center point of the rotating shaft 9, so that the main feed is gradually discharged through the multiple discharge slots, and the main feed is discharged to the surface of the transmission conveyor belt 14 after passing through the sloped blanking plate 16, and then the second drive motor 15 is started to drive the drive shaft 13 to rotate, so that the multiple drive shafts 13 and the multiple drive wheels rotate between the two conveying grooves 12, and the transmission conveyor belt 14 is driven to convey the main feed; Then open the flow valve to allow the material in the feeding cylinder 24 to enter the injection cylinder 7 through the telescopic hose 20 and the feed pipe 18, and then allow the added feed to move in the injection cylinder 7, so that the feed is discharged through the discharge port 19 and falls onto the main feed on the transmission conveyor belt 14, and then the various feeds enter the installation circular frame through the conveying channel 5 and the feed channel 4 after being added, and then start the third drive motor 31, and through the meshing transmission relationship between the transmission gear 32 and the transmission toothed belt 33, drive the dynamic grinding disc 29 and the rotating seat 30 to rotate together, and grind various feeds through the shear force generated between the dynamic grinding disc 29 and the fixed grinding disc 28 during the rotation process, and then screen the ground feed through the semicircular screening frame 27, and the feed particles with qualified volume pass through the semicircular screening frame 27 and are discharged, while the feed particles with larger volume continue to be ground between the dynamic grinding disc 29 and the fixed grinding disc 28 until all are discharged after grinding.

[0028] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A pre-feeding feed grinding device for sole fry breeding, comprising a grinding cylinder (1), the bottom of the grinding cylinder (1) is fixedly connected to a fixed support (2), a feed grinding assembly is arranged in the grinding cylinder (1), a driving structure is arranged between the feed grinding assembly and the fixed support (2), the bottom of the grinding cylinder (1) is connected to a discharge channel (3), and the top of the grinding cylinder (1) is provided with a feed channel (4), characterized in that: Also includes: A conveying channel (5), the feeding channel (4) is connected to the conveying channel (5), a side of the conveying channel (5) away from the feeding channel (4) is connected to a feeding chamber (6), a main material discharge component is arranged in the feeding chamber (6), and a feed conveying component is arranged in the conveying channel (5); A material injection barrel (7), wherein the number of the material injection barrels (7) is set to be multiple, the material injection barrels (7) are arranged in the conveying channel (5), and multiple types of feed are respectively injected into the conveying channel (5) through the multiple material injection barrels (7), and a weighing and feeding component is arranged between the material injection barrel (7) and the conveying channel (5).

2. The pre-feeding feed grinding device for sole fry breeding according to claim 1, characterized in that: The main material discharge component comprises: a semicircular storage barrel (8), the semicircular storage barrel (8) being rotatably connected to the feed chamber (6) via a rotating shaft (9), a first drive motor (10) being provided on the feed chamber (6), an output end of the first drive motor (10) being fixedly connected to the rotating shaft (9); A semicircular material receiving barrel (11), the semicircular material receiving barrel (11) is located inside the semicircular storage barrel (8), the semicircular material receiving barrel (11) is fixedly connected to the inner wall of the feed chamber (6), and a plurality of discharge slots are provided at the bottom of the semicircular material receiving barrel (11).

3. The pre-feeding feed grinding device for sole fry breeding according to claim 2, characterized in that: The feed conveying assembly comprises: A conveying groove (12), the conveying groove (12) being fixedly connected to both sides of the interior of the conveying channel (5), and a plurality of rotating rings passing through and fixedly connected to the conveying groove (12); A driving shaft (13), wherein the driving shaft (13) is rotatably arranged between the two rotating rings corresponding to each other, and a driving wheel is arranged on the driving shaft (13); A transmission conveyor belt (14), wherein the transmission conveyor belt (14) is arranged for transmission between the plurality of driving wheels; A second drive motor (15), wherein the conveying channel (5) is provided with a second drive motor (15), and an output end of the second drive motor (15) is fixedly connected to one of the drive shafts (13).

4. The pre-feeding feed grinding device for sole fry breeding according to claim 3, characterized in that: A sloped blanking plate (16) is fixedly connected inside the feed chamber (6), and the sloped blanking plate (16) is located between the semicircular storage barrel (8) and the transmission conveyor belt (14).

5. The pre-feeding feed grinding device for sole fry breeding according to claim 4, characterized in that: An elastic sealing strip (17) is fixedly connected to the outer wall of the conveying groove (12), and the elastic sealing strip (17) is in contact with the transmission conveyor belt (14).

6. The pre-feeding feed grinding device for sole fry breeding according to claim 5, characterized in that: The top of the injection barrel (7) is connected to a feed pipe (18), the feed pipe (18) passes through the conveying channel (5), one side of the feed pipe (18) is connected to a discharge port (19), a valve is provided on the discharge port (19), and the top of the feed pipe (18) is connected to a telescopic hose (20).

7. The pre-feeding feed grinding device for sole fry breeding according to claim 6, characterized in that: A movable plate (21) is slidably disposed in the injection barrel (7), a plurality of material dividing plates (22) are fixedly connected to the movable plate (21), and a driving electric cylinder (23) is disposed on the injection barrel (7), an output end of the driving electric cylinder (23) is fixedly connected to the movable plate (21).

8. The pre-feeding feed grinding device for sole fry breeding according to claim 7, characterized in that: The weighing and feeding component comprises: A feeding cylinder (24), wherein a flow valve is provided at the bottom of the feeding cylinder (24), and the bottom of the feeding cylinder (24) is in communication with the telescopic hose (20); A hoisting weighing device (25) is provided between the feeding cylinder (24) and the conveying channel (5).

9. The pre-feeding feed grinding device for sole fry breeding according to claim 8, characterized in that: The feed grinding assembly: A mounting ring frame (26), the mounting ring frame (26) being fixedly connected to the grinding cylinder (1), a semicircular screening frame (27) being fixedly connected to the mounting ring frame (26), and the discharge channel (3) and the feed channel (4) being both in communication with the mounting ring frame (26); A fixed grinding disc (28), the fixed grinding disc (28) being fixedly connected to one side of the interior of the mounting ring frame (26); A dynamic grinding disc (29), the other side of the interior of the mounting ring frame (26) being rotatably connected to the dynamic grinding disc (29), and the fixed grinding disc (28) being matched with the dynamic grinding disc (29); Wherein, a rotating seat (30) is fixedly connected to the movable grinding disc (29), and the rotating seat (30) penetrates and is rotatably connected to the grinding cylinder (1).

10. The pre-feeding feed grinding device for sole fry breeding according to claim 9, characterized in that: The driving structure comprises: a third drive motor (31), the third drive motor (31) being arranged on the fixed support (2); A transmission gear (32), wherein the output end of the third drive motor (31) and the rotating seat (30) are both provided with a transmission gear (32), and a transmission toothed belt (33) is provided between the two transmission gears (32).

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