Fodder air conveying machine

By using technical means such as mixing leaves, scrapers, air pumps and heating wires in the feed air feeder, the problems of poor feed accumulation and mixing are solved, and the continuous and uniform transportation and high-quality supply of feed are achieved.

CN222249141UActive Publication Date: 2024-12-27SICHUAN WUYI MACHINERY MFG
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Patent Information

Application Number
CN202421179282.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-28
Publication Date
2024-12-27
Estimated Expiration
2034-05-28

AI Technical Summary

Technical Problem

Existing feed air feeders are prone to accumulation and cause blockage during the discharge of large-grain feed, and it is difficult to maintain the uniformity and mixing of feed, resulting in poor feed quality.

Method used

A feed air conveyor was designed, using a stirring leaf to stir the feed at the bottom of the storage box, combined with a scraper to remove residual impurities, the air pump takes away moisture, the heating wire maintains the uniform temperature of the feed, and monitors the remaining feed through the slider to ensure that Continuous and uniform delivery of feed and high quality.

Benefits of technology

It effectively reduces feed accumulation and blockage, improves the smoothness and mixing of feed, ensures the freshness and hygiene quality of feed, avoids stratification and deterioration, and ensures that animals obtain appropriate amounts of high-quality feed.

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Abstract

The utility model belongs to the technical field of breeding, and particularly relates to a feed air feeder which comprises a fixing frame. The middle part of the fixed frame is fixedly connected with a material storage box; the bottom of the storage box is fixedly connected with an air supply pipe; a motor is fixedly connected to the side wall of the fixing frame. The output end of the motor is fixedly connected with a rotating rod; the middle of the rotating rod penetrates through the side wall of the storage box; the middle part of the rotating rod is fixedly connected with a shifting plate; two fixing rods are fixedly connected to the bottom of the storage box; the fixed rod is fixedly connected to the interior of the storage box; the two fixing rods are oppositely arranged; the ends of the two fixing rods are fixedly connected with rotating shafts. A supporting rod is fixedly connected to the middle of the rotating shaft; the middle part of the supporting rod is fixedly connected with a plurality of groups of connecting rods; and the feed can be stirred at the bottom of the feed storage box through the stirring blades, the feed can be effectively kept to flow out uniformly and continuously in the discharging process, accumulation and blockage of the feed in the discharging process are effectively reduced, and the fluency of feed discharging is effectively improved.
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Description

Technical Field

[0001] The utility model belongs to the technical field of breeding, in particular to a feed air conveyor. Background Art

[0002] Feed air conveyor is also called air feeding machine. Feed air conveyor is a kind of equipment that uses the wind force generated by the fan to transport feed. Feed air conveyor is widely used in poultry and livestock breeding, feed processing and crop planting.

[0003] The feed air conveyor uses the strong wind generated by the fan as the power source. When the fan is started, the airflow generated passes through a specific feed pipeline, forming a strong airflow that creates negative pressure in the pipeline, so that the feed is sucked in and flows with the airflow. Driven by the airflow, the feed is transported through the pipeline to the feeding pipe, realizing continuous and uniform delivery of the feed.

[0004] During the feeding process, the feed is driven by the airflow through the bottom of the storage box into the conveying pipe. Large particles of feed are easily accumulated at the discharge port of the storage box during discharge, resulting in blockage of the feed and inability to discharge normally.

[0005] To this end, the utility model provides a feed air conveyor. Utility Model Content

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the utility model to solve its technical problems is: a feed air conveyor described in the utility model comprises a fixed frame; a storage box is fixedly connected to the middle of the fixed frame; an air conveying pipe is fixedly connected to the bottom of the storage box; a motor is fixedly connected to the side wall of the fixed frame; a rotating rod is fixedly connected to the output end of the motor; the middle of the rotating rod passes through the side wall of the storage box; a paddle is fixedly connected to the middle of the rotating rod; two fixed rods are fixedly connected to the bottom of the storage box; the fixed rod is fixed to the inside of the storage box; the two fixed rods are arranged oppositely; the ends of the two fixed rods are fixedly connected to a rotating shaft; the middle of the rotating shaft is fixedly connected to a support rod; a plurality of groups of connecting rods are fixedly connected to the middle of the support rod; the plurality of groups of connecting rods are equidistantly spaced in the middle of the support rod cloth; the connecting rod is fixedly connected to a position close to the top of the supporting rod; a plurality of stirring blades are fixedly connected to the middle of the supporting rod; a plurality of stirring blades are fixedly connected to one end away from the connecting rod; the stirring blades can stir the feed at the bottom of the storage box, which can effectively maintain the feed to flow out evenly and continuously during the discharging process, effectively reduce the accumulation and blockage of the feed during the discharging process, effectively improve the smoothness of the feed discharging, and enable different types or components of feed to be fully mixed inside the storage box, can accurately control the composition and proportion of the feed, can reduce the stratification of the feed, and effectively enable the feed of different layers to be evenly transported, thereby effectively improving the overall quality of the feed.

[0008] Preferably, the side wall of the storage box is provided with two groups of slide grooves; two of the slide grooves form a group; the two groups of slide grooves are opened on the side wall of the storage box; a slider is slidably connected to the middle of the slide groove; the ends of the two slide grooves are fixedly connected to a first connecting plate; the side wall of the first connecting plate is fixedly connected to a scraper; the end of the scraper is in contact with the side wall of the fixed frame; the bottom of the slider is fixedly connected to a spring; the other end of the spring is fixedly connected to the bottom of the slide groove; the two side walls of the scraper are fixedly connected to a second connecting plate; the second connecting plate is fixedly connected to the corresponding one of the paddle positions; the scraper can effectively remove residual feed, impurities and contaminants, effectively reduce the quality decline of feed filled next time, effectively reduce the problem of feed deterioration or contamination, effectively enable animals to ingest fresh and safe feed, effectively reduce the long-term accumulation of impurities in the storage box resulting in cross-contamination between different types or batches of feed, and effectively increase the purity and accuracy of feed feeding.

[0009] Preferably, one end of the rotating rod is hollow; a plurality of exhaust holes are provided in the middle of the rotating rod; an air pump is fixedly connected to the side wall of the storage box; an exhaust pipe is fixedly connected to the bottom of the air pump; the middle of the exhaust pipe passes through the side wall of the storage box; the end of the exhaust pipe is arranged at a position corresponding to the end of the rotating rod; by blowing air into the feed inside the storage box, moisture and humidity inside the storage box can be effectively taken away, the problem of feed agglomeration or hardening can be effectively reduced, and the deterioration of feed caused by moisture inside the storage box can be effectively reduced, the humidity inside the storage box can be effectively reduced by blowing air, the looseness and fluidity of the feed can be effectively maintained, and the internal airflow can make the feed particles better mixed and distributed, effectively reducing the feed stratification phenomenon.

[0010] Preferably, a heating wire is fixedly connected to the middle of the exhaust pipe; a heat-insulating cotton is fixedly connected to the middle of the heating wire; the heat-insulating cotton is fixedly connected to the outside of the heating wire; by controlling the heating wire to blow hot air into the inside of the feed, the feed inside the storage box can be heated evenly, and effective uniform heating of the feed can reduce the internal temperature difference, effectively reduce the problem of uneven quality or nutritional loss of the feed due to local overheating or overcooling, and adding hot air to the inside can kill bacteria and other microorganisms in the feed, effectively improving the sanitary quality of the feed.

[0011] Preferably, a sliding rod is slidably connected to the side wall of the storage box; a baffle is fixedly connected to the end of the sliding rod; the baffle is fixedly connected to the inside of the storage box; the feed situation inside the storage box can be visually observed through the sliding rod, so that the breeder can intuitively understand the remaining amount of feed inside the storage box, and can timely discover the remaining feed and take corresponding treatment measures, so as to reasonably arrange the replenishment of feed, effectively reduce the problem of feed shortage, and enable animals to obtain a continuous and appropriate supply of feed.

[0012] Preferably, a pulley is installed at the end of one of the paddle plates; the pulley is fixedly connected to the end of the paddle plate; the pulley can effectively reduce the wear caused by the paddle plate lifting the second connecting plate, and can effectively reduce the large amount of energy consumed during friction, effectively enable energy to be transmitted and utilized more efficiently, effectively improve the overall work efficiency, effectively reduce the wear and damage of the paddle plate and the second connecting plate caused by long-term friction, and effectively reduce friction to improve the smoothness and accuracy of operation.

[0013] The beneficial effects of the utility model are as follows:

[0014] 1. The feed air conveyor described in the utility model can stir the feed at the bottom of the storage box through the stirring blades, which can effectively keep the feed flowing out evenly and continuously during the discharging process, and effectively reduce the accumulation and blockage of the feed during the discharging process.

[0015] 2. The feed air conveyor described in the utility model can effectively remove residual feed, impurities and pollutants through the scraper, effectively reduce the decline in the quality of the feed to be filled next time, and can effectively reduce the problem of feed deterioration or contamination. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model will be further described below in conjunction with the accompanying drawings.

[0017] Figure 1 It is a three-dimensional diagram of a feed air conveyor in the utility model;

[0018] Figure 2 It is a structural schematic diagram of the spring in the utility model;

[0019] Figure 3 It is a structural schematic diagram of the stirring blade in the utility model;

[0020] Figure 4 It is a schematic diagram of the structure of the heating wire in the utility model;

[0021] Figure 5 It is a structural schematic diagram of the pulley in the utility model;

[0022] In the figure: 1. fixed frame; 10. storage box; 11. air delivery pipe; 12. motor; 13. rotating rod; 14. dial plate; 15. fixed rod; 16. rotating shaft; 17. support rod; 18. connecting rod; 19. stirring blade; 2. slide groove; 21. slider; 22. first connecting plate; 23. scraper; 24. spring; 25. second connecting plate; 3. exhaust hole; 31. air pump; 32. exhaust pipe; 4. heating wire; 41. thermal insulation cotton; 5. slide rod; 51. baffle; 6. pulley; 7. filter. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0024] like Figures 1 to 3As shown, a feed air conveyor described in an embodiment of the utility model comprises a fixing frame 1; a storage box 10 is fixedly connected to the middle of the fixing frame 1; an air conveying pipe 11 is fixedly connected to the bottom of the storage box 10; a motor 12 is fixedly connected to the side wall of the fixing frame 1; a rotating rod 13 is fixedly connected to the output end of the motor 12; the middle of the rotating rod 13 passes through the side wall of the storage box 10; a dial plate 14 is fixedly connected to the middle of the rotating rod 13; two fixing rods 15 are fixedly connected to the bottom of the storage box 10; the fixing rods 15 are fixedly connected to the inside of the storage box 10; the two fixing rods 15 are arranged opposite to each other ... The end of the rod 15 is fixedly connected to a rotating shaft 16; a support rod 17 is fixedly connected to the middle of the rotating shaft 16; a plurality of connecting rods 18 are fixedly connected to the middle of the support rod 17; the plurality of connecting rods 18 are evenly distributed in the middle of the support rod 17; the connecting rod 18 is fixedly connected near the top of the support rod 17; a plurality of stirring blades 19 are fixedly connected to the middle of the support rod 17; the plurality of stirring blades 19 are fixedly connected to one end away from the connecting rod 18; when working, one end of the air delivery pipe 11 is connected to the feeding mechanism, and then the feed is placed in the storage box 10, so that the feed is stored inside the storage box 10, and the air is blown to the feed. The feed is transported from the bottom of the storage box 10 to the middle of the air delivery pipe 11, and then discharged through the feeder. When the feed is discharged from the bottom of the storage box 10, the motor 12 is powered on and turned on, and the rotating rod 13 is rotated in the middle of the storage box 10 through the output end of the motor 12. When the rotating rod 13 rotates, it drives the paddle 14 to rotate. When the paddle 14 rotates, it contacts the connecting rod 18 and paddles the connecting rod 18. When the connecting rod 18 is paddled by the paddle 14, the support rod 17 rotates inside the rotating shaft 16. At this time, multiple groups of stirring blades 19 are in the storage box 10. The bottom rotates to stir the feed, and the stirring blades 19 can stir the feed at the bottom of the storage box 10, which can effectively maintain the feed to flow out evenly and continuously during the discharging process, effectively reduce the accumulation and blockage of the feed during the discharging process, effectively improve the smoothness of the feed discharging, and enable different types or components of feed to be fully mixed inside the storage box 10, and can accurately control the composition and proportion of the feed, can reduce the stratification of the feed, and effectively enable feeds of different layers to be evenly transported, thereby effectively improving the overall quality of the feed.

[0025] like Figure 2 and Figure 3As shown, the side wall of the storage box 10 is provided with two groups of slide grooves 2; two of the slide grooves 2 form a group; the two groups of slide grooves 2 are provided on the side wall of the storage box 10; a slider 21 is slidably connected to the middle of the slide groove 2; the ends of the two sliders 21 are fixedly connected to the first connecting plates 22; the side wall of the first connecting plate 22 is fixedly connected to the scraper 23; the end of the scraper 23 is in contact with the side wall of the fixed frame 1; a spring 24 is fixedly connected to the bottom of the slide groove 2; the other end of the spring 24 is fixedly connected to the bottom of the slide groove 2; the side walls of the two scrapers 23 are fixedly connected to the second connecting plates 25; the second connecting plate 25 is fixedly connected to the position corresponding to one of the dial plates 14; during operation, when the dial plate 14 rotates, one of the dial plates 14 contacts the second connecting plate 25 during the rotation process and pushes the second connecting plate 25 up When the second connecting plate 25 is lifted up, the two first connecting plates 22 are moved at the same time, so that the two sliders 21 slide upward inside the slide groove 2, and the inner wall of the storage box 10 is cleaned by the scraper 23. When the slider 21 slides, the spring 24 is elastically stretched, and when the paddle 14 is away from the second connecting plate 25, it is elastically reset by the spring 24. The scraper 23 can effectively remove residual feed, impurities and pollutants, effectively reduce the quality decline of the feed filled next time, effectively reduce the problem of feed deterioration or contamination, effectively enable the animals to ingest fresh and safe feed, effectively reduce the accumulation of impurities in the storage box 10 for a long time, and cause cross-contamination between different types or batches of feed, and effectively increase the purity and accuracy of feed feeding.

[0026] like Figure 2 and Figure 4 As shown, one end of the rotating rod 13 is hollow; a plurality of exhaust holes 3 are provided in the middle of the rotating rod 13; an air pump 31 is fixedly connected to the side wall of the storage box 10; an exhaust pipe 32 is fixedly connected to the bottom of the air pump 31; the middle of the exhaust pipe 32 passes through the side wall of the storage box 10; the end of the exhaust pipe 32 is arranged at the position corresponding to the end of the rotating rod 13; when working, the air pump 31 is powered on and turned on, and the air flow is discharged through the air pump 31 and enters the exhaust pipe 32, and the air flow is blown to the inside of the rotating rod 13 through the end of the exhaust pipe 32, and the air flow is discharged again through the exhaust holes 3 into the feed. By blowing air to the feed inside the storage box 10, the moisture and humidity inside the storage box 10 can be effectively taken away, the problem of agglomeration or hardening of the feed can be effectively reduced, and the moisture inside the storage box 10 causing the feed to deteriorate can be effectively reduced, the humidity inside the storage box 10 can be effectively reduced by blowing, the looseness and fluidity of the feed can be effectively maintained, and the internal airflow can make the feed particles better mixed and distributed, and the feed stratification phenomenon can be effectively reduced.

[0027] like Figure 4As shown, a heating wire 4 is fixedly connected to the middle of the exhaust pipe 32; a heat-insulating cotton 41 is fixedly connected to the middle of the heating wire 4; the heat-insulating cotton 41 is fixedly connected to the outside of the heating wire 4; when working, the heating wire 4 is energized to generate heat on the surface, and the heat generated by the airflow passing through the surface of the heating wire 4 is converted into hot air, which is blown to the inside of the rotating rod 13 through the exhaust pipe 32 and discharged, and the heat is blocked by the heat-insulating cotton 41 from dissipating in the air. By controlling the heating wire 4 to make the hot air blow into the feed, the feed inside the storage box 10 can be evenly heated, and the effective uniform heating of the feed can reduce the temperature difference inside, effectively reduce the problem of uneven quality or nutritional loss of the feed due to local overheating or overcooling, and adding hot air to the inside can kill bacteria and other microorganisms in the feed, effectively improving the sanitary quality of the feed.

[0028] like Figure 1 and Figure 3 As shown, the side wall of the feed storage box 10 is slidably connected with a slide bar 5; the end of the slide bar 5 is fixedly connected to a baffle 51; the baffle 51 is fixedly connected to the inside of the feed storage box 10; when working, the slide bar 5 is slid upward, and then the feed is poured into the inside of the feed storage box 10. When there is more feed, the baffle 51 is lifted up by the feed. When the feed inside the feed storage box 10 gradually becomes less, the baffle 51 is used to make the slide bar 5 drop with the feed. The feed situation inside the feed storage box 10 can be intuitively observed through the slide bar 5, which can enable the breeder to intuitively understand the remaining amount of feed inside the feed storage box 10, and can timely discover the remaining amount of feed and take corresponding treatment measures, so as to reasonably arrange the replenishment of feed, effectively reduce the problem of feed shortage, and enable animals to obtain a continuous and appropriate supply of feed.

[0029] like Figure 5 As shown, a pulley 6 is installed at the end of one of the paddle plates 14; the pulley 6 is fixedly connected to the end of the paddle plate 14; during operation, when the paddle plate 14 comes into contact with the second connecting plate 25, the pulley 6 slides on the surface of the second connecting plate 25, and the pulley 6 can effectively reduce the wear and tear caused by the paddle plate 14 lifting the second connecting plate 25, and can effectively reduce the large amount of energy consumed during friction, effectively enable energy to be transmitted and utilized more efficiently, effectively improve the overall work efficiency, effectively reduce the wear and damage of the paddle plate 14 and the second connecting plate 25 caused by long-term friction, and effectively reduce friction to improve the smoothness and accuracy of operation.

[0030] like Figure 2As shown, a filter screen 7 is installed in the middle of the exhaust hole 3; the filter screen 7 is fixedly connected to the middle of the exhaust hole 3; during operation, when the airflow blows toward the inside of the feed, the feed is blocked outside the exhaust pipe 32 by the filter screen 7, and the filter screen 7 can effectively reduce the feed from entering the rotating rod 13, effectively reduce the accumulation of feed inside the rotating rod 13, effectively reduce the blockage caused by the accumulation inside the rotating rod 13, effectively reduce the problem of reduced blowing effect caused by blockage, and can effectively reduce the problem of dust impurities or other particulate matter contained in the feed entering the pipe and causing wear or damage to the inner wall.

[0031] During operation, one end of the air delivery pipe 11 is connected to the feeding mechanism, and then the feed is placed in the storage box 10, so that the feed is stored inside the storage box 10, and the feed is transported from the bottom of the storage box 10 to the middle of the air delivery pipe 11 through the fan, and then the feed is discharged through the feeding machine. When the feed is discharged from the bottom of the storage box 10, the motor 12 is powered on and turned on, and the rotating rod 13 is rotated in the middle of the storage box 10 through the output end of the motor 12. When the rotating rod 13 rotates, it drives the dial plate 14 to rotate. When the dial plate 14 rotates, The connecting rod 18 contacts and moves the connecting rod 18. When the connecting rod 18 is moved by the paddle 14, the support rod 17 rotates inside the rotating shaft 16. At this time, multiple groups of stirring blades 19 rotate at the bottom of the storage box 10 to stir the feed. When the paddle 14 rotates, one of the paddles 14 contacts the second connecting plate 25 during the rotation process and lifts the second connecting plate 25. When the second connecting plate 25 is lifted, the two first connecting plates 22 are moved at the same time, so that the two sliders 21 slide upward inside the slide groove 2. The scraper 23 cleans the inner wall of the storage box 10, the spring 24 elastically stretches when the slider 21 slides, and the spring 24 elastically resets when the dial plate 14 is away from the second connecting plate 25, and the air pump 31 is powered on and turned on, and the air flow is discharged through the air pump 31 and enters the exhaust pipe 32, and the air flow is blown to the inside of the rotating rod 13 through the end of the exhaust pipe 32, and the air flow is discharged again through the exhaust hole 3 into the feed, and the heating wire 4 is powered on to generate heat on the surface, and the heat generated by the air flow passing through the surface of the heating wire 4 is converted into hot air, and the hot air is vented. The heat is blown toward the inside of the rotating rod 13 through the exhaust pipe 32 and discharged. The heat is blocked by the heat preservation cotton 41 and dissipated in the air. The slide bar 5 is slid upward, and the feed is poured into the storage box 10. When there is more feed, the baffle 51 is lifted up by the feed. When the feed in the storage box 10 gradually becomes less, the baffle 51 causes the slide bar 5 to drop with the feed. When the paddle plate 14 comes into contact with the second connecting plate 25, the pulley 6 slides on the surface of the second connecting plate 25. When the airflow blows toward the inside of the feed, the filter screen 7 blocks the feed outside the exhaust pipe 32.

[0032] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A feed air conveyor, comprising a fixed frame (1); characterized in that: A material storage box (10) is fixedly connected to the middle of the fixed frame (1); an air delivery pipe (11) is fixedly connected to the bottom of the material storage box (10); a motor (12) is fixedly connected to the side wall of the fixed frame (1); a rotating rod (13) is fixedly connected to the output end of the motor (12); the middle of the rotating rod (13) passes through the side wall of the material storage box (10); a shift plate (14) is fixedly connected to the middle of the rotating rod (13); two fixed rods (15) are fixedly connected to the bottom of the material storage box (10); the fixed rods (15) are fixedly connected to the inside of the material storage box (10); the two fixed rods (15) are arranged oppositely; the ends of the two fixed rods (15) are fixedly connected with a rotating shaft (16); the middle of the rotating shaft (16) is fixedly connected with a support rod (17); the middle of the support rod (17) is fixedly connected with a plurality of connecting rods (18); the plurality of connecting rods (18) are evenly distributed in the middle of the support rod (17); the connecting rod (18) is fixedly connected at a position close to the top of the support rod (17); the middle of the support rod (17) is fixedly connected with a plurality of stirring blades (19); the plurality of stirring blades (19) are fixedly connected at an end away from the connecting rod (18).

2. A feed air conveyor according to claim 1, characterized in that: The side wall of the material storage box (10) is provided with two groups of slide grooves (2); two of the slide grooves (2) form a group; the two groups of slide grooves (2) are provided on the side wall of the material storage box (10); a slider (21) is slidably connected to the middle of the slide groove (2); the ends of the two sliders (21) are fixedly connected to a first connecting plate (22); the side wall of the first connecting plate (22) is fixedly connected to a scraper (23); the end of the scraper (23) is fitted with the side wall of the fixing frame (1); a spring (24) is fixedly connected to the bottom of the slide groove (2); the other end of the spring (24) is fixedly connected to the bottom of the slide groove (2); the side walls of the two scrapers (23) are fixedly connected to a second connecting plate (25); the second connecting plate (25) is fixedly connected to the position corresponding to one of the shifting plates (14).

3. A feed air conveyor according to claim 2, characterized in that: One end of the rotating rod (13) is hollow; a plurality of exhaust holes (3) are provided in the middle of the rotating rod (13); an air pump (31) is fixedly connected to the side wall of the material storage box (10); an exhaust pipe (32) is fixedly connected to the bottom of the air pump (31); the middle of the exhaust pipe (32) passes through the side wall of the material storage box (10); and the end of the exhaust pipe (32) is arranged at a position corresponding to the end of the rotating rod (13).

4. A feed air conveyor according to claim 3, characterized in that: A heating wire (4) is fixedly connected to the middle of the exhaust pipe (32); a heat-insulating cotton (41) is fixedly connected to the middle of the heating wire (4); and the heat-insulating cotton (41) is fixedly connected to the outside of the heating wire (4).

5. A feed air conveyor according to claim 4, characterized in that: The side wall of the material storage box (10) is slidably connected to a sliding rod (5); the end of the sliding rod (5) is fixedly connected to a baffle (51); and the baffle (51) is fixedly connected to the inside of the material storage box (10).

6. A feed air conveyor according to claim 5, characterized in that: A pulley (6) is installed at the end of one of the shifting plates (14); the pulley (6) is fixedly connected to the end of the shifting plate (14).