Cotton airflow pipeline conveying device

By designing a cotton airflow pipeline conveying device connected to the conveying pipe with a negative pressure chamber, the problem of limited suction range of the conveying pipe and easy to blockage in the prior art is solved, and a more efficient and uniform cotton conveying is achieved.

CN119660378AInactive Publication Date: 2025-03-21ANQING ZECHEN ZHIYI TEXTILE CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202411913289.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-24
Publication Date
2025-03-21
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

In the existing cotton airflow pipeline conveying device, the attraction range of the end of the conveying pipe is limited, which causes the cotton to be pushed close to the conveying pipe by workers, and the amount of cotton is too much and it is easy to be blocked, which increases the problem of uneven labor and transportation.

Method used

A cotton airflow pipeline conveying device is designed, including a conveying pipe and a storage box. One end of the storage box is equipped with a material picking barrel. The material picking barrel is rotatably installed on the bottom plate and has a negative pressure chamber inside. The conveying tube is connected to the negative pressure chamber in the material picking barrel through the suction pipe. A sealing plate is fixedly installed in the negative pressure chamber. The material picking barrel can continuously transfer cotton to the suction end of the conveying tube.

Benefits of technology

Workers do not need to manually take cotton at the end of the conveying pipe, and the conveying volume is more uniform, avoiding the situation of the conveying pipe blockage and significantly improving the conveying efficiency.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN119660378A_ABST
    Figure CN119660378A_ABST
Patent Text Reader

Abstract

The invention discloses a cotton airflow pipeline conveying device, and relates to the technical field of pipeline conveying, and the cotton airflow pipeline conveying device is technically characterized by comprising a conveying pipe and a storage box, a bottom plate is fixedly mounted at the bottom end of the storage box, and the cotton airflow pipeline conveying device further comprises a material taking barrel which is arranged at one end of the storage box and rotatably mounted on the upper surface of the bottom plate; one part of the area of the material taking barrel is located in the storage box, the other part of the area of the material taking barrel is located outside the storage box, a negative pressure cavity is formed in the material taking barrel, and a plurality of through holes are formed in the outer surface of the material taking barrel; a feeding opening is formed between one end, in the radial direction, of the material taking barrel and the storage box; the driving part is fixedly connected with the material taking barrel, is fixedly mounted on the bottom plate and is used for driving the material taking barrel to rotate; wherein the conveying pipe communicates with a negative pressure cavity in the material taking barrel through an air suction pipe, a sealing plate is fixedly installed in the negative pressure cavity, the sealing plate is attached to the part, located on the outer side of the storage box, of the material taking barrel, and cotton can be evenly transferred to the suction end of the conveying pipe.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The invention relates to the technical field of pipeline transportation, in particular to a cotton airflow pipeline transportation device. Background Art

[0002] After cotton is picked, it needs to go through multiple processing steps, and it needs to be transported to the processing equipment by conveying equipment. Suction-type pneumatic conveying devices are mostly used for transporting raw cotton: conveying pipe-separator-fan. The airflow in the pipeline is negative pressure pipe flow, and the energy of negative pressure is used to complete the transportation of cotton; the cotton is concentrated at the feed inlet of the conveying pipe, and the conveying pipe can suck the cotton into it by itself. However, the suction range of the end of the conveying pipe is limited. Therefore, workers are required to push the cotton close to the end of the conveying pipe. When there is too much cotton at the end of the conveying pipe, the cotton is easily blocked at the end of the conveying pipe. In order to prevent the cotton from blocking the conveying pipe, the workers take a certain amount of cotton and place it at the end of the conveying pipe to ensure the normal and uniform transportation of the cotton, which leads to increased labor. Therefore, in order to solve the above technical problems, the present invention provides a cotton airflow pipeline conveying device. Summary of the invention

[0003] In view of the deficiencies of the prior art, the present invention provides a cotton airflow duct conveying device to solve the problems raised in the background technology.

[0004] To achieve the above object, the present invention provides the following technical solution: a cotton airflow pipeline conveying device, comprising a conveying pipe and a storage box, a blocking frame is fixedly installed on one end of the storage box, the suction end of the conveying pipe faces the blocking frame, and a bottom plate is fixedly installed on the bottom end of the storage box, and further comprising:

[0005] A material taking barrel, which is arranged at one end of the storage box and rotatably mounted on the upper surface of the bottom plate, a part of the area of ​​the material taking barrel is located inside the storage box, and another part of the area is located outside the storage box, a negative pressure chamber is provided inside the material taking barrel, and a plurality of through holes are opened on the outer surface of the material taking barrel;

[0006] Wherein, a feeding port is provided between one radial end of the material taking cylinder and the storage box;

[0007] A driving member is fixedly connected to the material taking barrel and fixedly mounted on the bottom plate, and is used to drive the material taking barrel to rotate;

[0008] The conveying pipe is connected with the negative pressure chamber in the material taking barrel through the suction pipe, a sealing plate is fixedly installed in the negative pressure chamber, and the sealing plate is in contact with the part of the material taking barrel located outside the storage box.

[0009] Preferably, the material taking barrel is configured to be in a cone shape.

[0010] Preferably, the driving member is a motor, and the output end of the motor is fixedly connected to the material taking barrel.

[0011] Preferably, a fixed cylinder is fixedly installed on the upper surface of the bottom plate and located inside the material taking cylinder, a reciprocating screw is fixedly installed on the output end of the motor, the top end of the reciprocating screw is fixedly connected to the material taking cylinder, a movable plate is arranged on the outer surface of the reciprocating screw, the movable plate is slidably connected to the fixed cylinder, the movable plate divides the interior of the fixed cylinder into two independent cavities, a mounting ring is fixedly installed on the inner surface of the movable plate, a sliding rod is fixedly installed on the mounting ring, and the sliding rod is slidably connected to the spiral rail on the reciprocating screw;

[0012] A plurality of first air inlet heads are fixedly mounted on the bottom end of the fixed cylinder, and a second one-way valve is fixedly mounted on each first air inlet head; a plurality of second air inlet heads are fixedly mounted on the top end of the fixed cylinder, and a fourth one-way valve is fixedly mounted on each second air inlet head;

[0013] A cavity is formed between the sealing plate and the material taking barrel, and air outlet pipes are fixedly installed on the top and bottom ends of the fixed barrel. Both air outlet pipes are connected to the cavity, and first one-way valves are fixedly installed on both air outlet pipes.

[0014] Preferably, a blowing plate is fixedly installed at the other end inside the storage box to form a blowing cavity on the inner side of the blowing plate, a plurality of blowing holes are provided on the blowing plate, a first connecting pipe is fixedly installed on the lower surface of the base plate, a cavity in the fixed cylinder is connected with the blowing cavity through the first connecting pipe, and a third one-way valve is fixedly installed on the first connecting pipe.

[0015] Preferably, an inclined guide plate is installed on the other end of the storage box.

[0016] Preferably, the top end of the inclined guide plate is rotatably connected to the storage box, an inner rod is rotatably mounted on the lower surface of the inclined guide plate, an outer cylinder is fixedly mounted on the inner surface of the storage box, a piston plate is fixedly mounted on the bottom end of the inner rod, and the piston plate is slidably arranged inside the outer cylinder;

[0017] A notch is provided on the top of the reciprocating screw, and a plurality of connecting holes are also provided at the top of the reciprocating screw. An air passage is provided on the top of the material taking barrel, and the air passage is connected with the notch. A second connecting tube is rotatably installed on the top of the material taking barrel, and one end of the second connecting tube is fixedly connected to the outer barrel.

[0018] Preferably, a limiting ring is fixedly installed on the inner surface of the outer cylinder.

[0019] Compared with the prior art, the present invention provides a cotton airflow pipeline conveying device having the following features:

[0020] Beneficial effects:

[0021] A material taking barrel is arranged at one end of the storage box, and the material taking barrel is rotatably mounted on the bottom plate, a part of the area of ​​the material taking barrel is located inside the storage box, and the other part is located outside the storage box, a negative pressure chamber is provided inside the material taking barrel, the delivery pipe is connected with the negative pressure chamber in the material taking barrel through the suction pipe, a sealing plate is fixedly installed in the negative pressure chamber, the sealing plate fits with the part of the material taking barrel located outside the storage box, the material taking barrel can continuously transfer a certain amount of cotton in the storage box to the suction end of the delivery pipe, there is no need for workers to take a certain amount of cotton and place it at the suction end of the delivery pipe, and the amount of cotton delivered is more uniform, and it is not easy for the suction end of the delivery pipe to be blocked due to excessive amount of cotton, thereby significantly improving the delivery efficiency.

[0022] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings. The specific implementation of the present invention is given in detail by the following embodiments and their accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0024] Figure 1 It is a structural schematic diagram of the present invention;

[0025] Figure 2 It is a structural schematic diagram of the bottom part in the present invention;

[0026] Figure 3 It is a schematic diagram of the structure at one end of the storage box in the present invention;

[0027] Figure 4 It is a schematic diagram of the cross-sectional structure of the storage box and the material taking barrel in the present invention;

[0028] Figure 5 For the present invention Figure 4 A magnified view of part A in FIG.

[0029] Figure 6 It is a structural schematic diagram of the material taking barrel in the present invention;

[0030] Figure 7 It is a structural schematic diagram of the bottom of the material taking barrel in the present invention;

[0031] Figure 8 It is a schematic diagram of the split structure of the fixed cylinder and the reciprocating screw in the present invention;

[0032] Fig. 9 It is a schematic diagram of the disassembled structure of the reciprocating screw, the mounting ring and the movable plate in the present invention.

[0033] In the figure:

[0034] 10. Conveying pipe; 11. Material introduction hopper; 12. Air suction pipe;

[0035] 20. Storage box; 21. Bottom plate; 22. Blocking frame; 23. Feeding port;

[0036] 30. Take the barrel; 301. Airway; 31. Sealing plate;

[0037] 40, fixed cylinder; 401, slide rail; 41, air outlet pipe; 411, first one-way valve; 42, first air inlet head; 421, second one-way valve; 43, second air inlet head; 431, fourth one-way valve;

[0038] 50, reciprocating screw; 501, notch; 502, connecting hole; 51, motor; 52, movable plate; 521, sliding mouth; 53, mounting ring; 531, sliding rod;

[0039] 60, blowing plate; 601, inclined portion; 602, blowing hole; 61, first connecting pipe; 611, third one-way valve;

[0040] 70. Inclined guide plate; 71. Second connecting pipe; 72. Outer tube; 721. Limiting ring; 73. Inner rod; 731. Piston plate. DETAILED DESCRIPTION

[0041] The following is combined with Figures 1 to 9 The principles and features of the present invention are described, and the examples given are only used to explain the present invention and are not used to limit the scope of the present invention. In the following paragraphs, the present invention is described in more detail by way of example with reference to the accompanying drawings. It should be noted that the drawings are all in a very simplified form and are not in precise proportions, and are only used to facilitate and clearly assist in explaining the purpose of the embodiments of the present invention.

[0042] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0043] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0044] Embodiment 1:

[0045] Please combine Figures 1 to 9 As shown, the present invention provides a cotton airflow pipeline conveying device, comprising a conveying pipe 10 and a storage box 20, a blocking frame 22 is fixedly installed on one end of the storage box 20, a guide hopper 11 is fixedly installed on the suction end of the conveying pipe 10, the opening end of the guide hopper 11 is fixedly connected to the blocking frame 22, and a bottom plate 21 is fixedly installed on the bottom end of the storage box 20. The airflow pipeline conveying device also includes:

[0046] A material taking barrel 30 is arranged at one end of the storage box 20 and is rotatably mounted on the upper surface of the bottom plate 21. A part of the material taking barrel 30 is located inside the storage box 20, and another part of the material taking barrel 30 is located outside the storage box 20. A negative pressure chamber is provided inside the material taking barrel 30, and a plurality of through holes are provided on the outer surface of the material taking barrel 30.

[0047] There is a feeding port 23 between one radial end of the material taking barrel 30 and the storage box 20;

[0048] A driving member, which is fixedly connected to the material taking barrel 30 and fixedly mounted on the bottom plate 21, and is used to drive the material taking barrel 30 to rotate;

[0049] The delivery pipe 10 is connected to the negative pressure chamber in the material taking barrel 30 through the suction pipe 12;

[0050] When the conveying tube 10 conveys cotton, the air in the negative pressure chamber can be sucked through the suction tube 12, so that the negative pressure chamber maintains a negative pressure state, and the part of the material taking barrel 30 located inside the storage box 20 can suck the cotton in the storage box 20, so that part of the cotton is attached to the outer surface of the material taking barrel 30, and the material taking barrel 30 rotates so that the part that has sucked the cotton passes through the feeding port 23 and enters the outside of the storage box 20, and a sealing plate 31 is fixedly installed in the negative pressure chamber, and the sealing plate 31 is attached to the part of the material taking barrel 30 located outside the storage box 20, and the material taking barrel 30 is located in the storage box 20. 0 loses its attraction to cotton, and the cotton in the blocking frame 22 can be sucked into the inside of the conveying pipe 10. During this process, the material taking barrel 30 can continuously transfer a certain amount of cotton in the storage box 20 to the suction end of the conveying pipe 10, without the need for workers to take a certain amount of cotton and place it at the suction end of the conveying pipe. Moreover, the amount of cotton transported by the material taking barrel 30 each time is more uniform, and it is not easy to cause the suction end of the conveying pipe 10 to be blocked due to excessive amount of cotton, which can significantly improve the conveying efficiency of the conveying pipe 10.

[0051] It should be noted that the material taking barrel 30 can be configured to be in a cone shape so that the outer surface of the material taking barrel 30 is in an inclined state, which is conducive to the material taking barrel 30 to better absorb the cotton.

[0052] Embodiment 2:

[0053] Based on the first embodiment, the solution in the first embodiment is further detailed in combination with the following specific working method, as described below for details.

[0054] Wherein, the driving member is a motor 51;

[0055] A fixed cylinder 40 is fixedly installed on the upper surface of the bottom plate 21 and located inside the material taking cylinder 30. A reciprocating screw 50 is fixedly installed on the output end of the motor 51. The top of the reciprocating screw 50 is fixedly connected to the material taking cylinder 30. A movable plate 52 is arranged on the outer surface of the reciprocating screw 50. A sliding opening 521 is provided on the movable plate 52. A slide rail 401 for sliding the sliding opening 521 is fixedly installed on the inner surface of the fixed cylinder 40. The movable plate 52 divides the interior of the fixed cylinder 40 into two independent cavities. A mounting ring 53 is fixedly installed on the inner surface of the movable plate 52. A sliding rod 531 is fixedly installed on the mounting ring 53. The sliding rod 531 is slidably connected with the spiral rail on the reciprocating screw 50. When the reciprocating screw 50 rotates, the sliding rod 531 slides along the spiral rail, so that the movable plate 52 reciprocates in the axial direction of the reciprocating screw 50.

[0056] A plurality of first air inlet heads 42 are fixedly mounted on the bottom end of the fixed cylinder 40, and a second one-way valve 421 is fixedly mounted on each first air inlet head 42. A plurality of second air inlet heads 43 are fixedly mounted on the top end of the fixed cylinder 40, and a fourth one-way valve 431 is fixedly mounted on each second air inlet head 43. During the axial movement of the movable plate 52 in the fixed cylinder 40, the two cavities in the fixed cylinder 40 can respectively extract the air in the negative pressure cavity through the first air inlet head 42 and the second air inlet head 43, but under the action of the second one-way valve 421 and the fourth one-way valve 431, the air in the two cavities will not be discharged from the first air inlet head 42 and the second air inlet head 43.

[0057] A cavity is formed between the sealing plate 31 and the material taking barrel 30, and an air outlet pipe 41 is fixedly installed on the top and bottom ends of the fixed barrel 40, and the two air outlet pipes 41 are both connected to the cavity, and the first one-way valve 411 is fixedly installed on the two air outlet pipes 41;

[0058] During the axial movement of the movable plate 52 in the fixed cylinder 40, one cavity is in an air intake state and the other cavity is in an air exhaust state, and the air in the cavity cannot be discharged through the first air inlet head 42 and the second air inlet head 43, but can only be discharged into the cavity between the sealing plate 31 and the material taking cylinder 30 through the air outlet pipe 41. Finally, the gas in the cavity is discharged through the through hole on the material taking cylinder 30, which can not only prevent the through hole on the material taking cylinder 30 from being blocked, but also assist in pushing the cotton in the blocking frame 22 into the conveying pipe 10.

[0059] Embodiment three:

[0060] The cotton at one end of the storage box 20 far from the material taking barrel 30 is prone to not being sucked by the material taking barrel 30. In order to solve this problem, a blowing plate 60 is fixedly installed at the other end of the storage box 20, so that a blowing cavity is formed on the inner side of the blowing plate 60. A plurality of blowing holes 602 are opened on the blowing plate 60. A first connecting pipe 61 is fixedly installed on the lower surface of the bottom plate 21. A cavity in the fixed barrel 40 is connected to the blowing cavity through the first connecting pipe 61. A third one-way valve 611 is fixedly installed on the first connecting pipe 61. At this time, when the movable plate 52 moves downward, the air in the cavity below the movable plate 52 can enter the blowing cavity through the first connecting pipe 61, and finally be discharged through the multiple blowing holes 602. The gas discharged from the multiple blowing holes 602 can blow the cotton at the bottom end of the storage box 20, so that the cotton moves toward the direction close to the material taking barrel 30, thereby ensuring that the material taking barrel 30 can absorb all the cotton inside the storage box 20. An inclined portion 601 is fixedly provided at the top of the blowing plate 60 to prevent the cotton from accumulating on the top of the blowing plate 60.

[0061] Embodiment 4:

[0062] An inclined guide plate 70 is installed on the other end of the storage box 20, and the bottom end of the inclined guide plate 70 faces the material taking barrel 30, so that the inclined guide plate 70 can guide the cotton to fall around the material taking barrel 30, which is conducive to the material taking barrel 30 to absorb the cotton;

[0063] The top end of the inclined guide plate 70 is rotatably connected to the storage box 20, an inner rod 73 is rotatably mounted on the lower surface of the inclined guide plate 70, an outer cylinder 72 is fixedly mounted on the inner surface of the storage box 20, a piston plate 731 is fixedly mounted on the bottom end of the inner rod 73, and the piston plate 731 is slidably disposed inside the outer cylinder 72;

[0064] A notch 501 is provided at the top of the reciprocating screw 50, and a plurality of connecting holes 502 are also provided at the top of the reciprocating screw 50. An air passage 301 is provided at the top of the material taking barrel 30, and the air passage 301 is connected with the notch 501. A second connecting pipe 71 is rotatably mounted on the top of the material taking barrel 30, and one end of the second connecting pipe 71 is fixedly connected to the outer barrel 72. When the movable plate 52 moves downward, the gas in the outer barrel 72 can be extracted through the second connecting pipe 71, so that the piston plate 731 slides downward, and the inclined guide plate 70 is rotated downward. When the movable plate 52 moves upward, the air in the cavity above the movable plate 52 can be sent into the outer cylinder 72 through the second connecting pipe 71, so that the inner rod 73 can slide upward, and the inclined guide plate 70 can rotate upward. During the up and down swinging of the inclined guide plate 70, the cotton can smoothly fall into the vicinity of the material taking barrel 30 without being squeezed by each other, but can only be concentrated around the top of the material taking barrel 30; a limiting ring 721 is fixedly installed on the inner surface of the outer cylinder 72 to limit the moving position of the piston plate 731.

[0065] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any ordinary technician in the industry can smoothly implement the present invention as shown in the drawings and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the present invention using the technical content disclosed above are all equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the protection scope of the technical solution of the present invention.

Claims

1. A cotton airflow pipeline conveying device, comprising a conveying pipe (10) and a storage box (20), wherein a blocking frame (22) is fixedly installed on one end of the storage box (20), the suction end of the conveying pipe (10) faces the blocking frame (22), and a bottom plate (21) is fixedly installed on the bottom end of the storage box (20), characterized in that: Also includes: A material taking barrel (30), which is arranged at one end of the storage box (20) and is rotatably mounted on the upper surface of the bottom plate (21), a part of the material taking barrel (30) is located inside the storage box (20), and another part of the material taking barrel (30) is located outside the storage box (20), a negative pressure chamber is provided inside the material taking barrel (30), and a plurality of through holes are provided on the outer surface of the material taking barrel (30); Wherein, a feeding port (23) is provided between one radial end of the material taking cylinder (30) and the storage box (20); A driving member, fixedly connected to the material taking barrel (30), fixedly mounted on the bottom plate (21), and used for driving the material taking barrel (30) to rotate; The conveying pipe (10) is connected to the negative pressure chamber in the material taking barrel (30) through the suction pipe (12), and a sealing plate (31) is fixedly installed in the negative pressure chamber. The sealing plate (31) fits with the part of the material taking barrel (30) located outside the storage box (20).

2. A cotton airflow duct conveying device according to claim 1, characterized in that: The material taking cylinder (30) is configured in a cone shape.

3. The cotton airflow duct conveying device according to claim 1, characterized in that: The driving member is a motor (51), and the output end of the motor (51) is fixedly connected to the material taking barrel (30).

4. The cotton airflow duct conveying device according to claim 3, characterized in that: A fixed cylinder (40) is fixedly installed on the upper surface of the bottom plate (21) and located inside the material taking cylinder (30); a reciprocating screw (50) is fixedly installed on the output end of the motor (51); the top end of the reciprocating screw (50) is fixedly connected to the material taking cylinder (30); a movable plate (52) is arranged on the outer surface of the reciprocating screw (50); the movable plate (52) is slidably connected to the fixed cylinder (40); the movable plate (52) divides the interior of the fixed cylinder (40) into two independent cavities; a mounting ring (53) is fixedly installed on the inner surface of the movable plate (52); a sliding rod (531) is fixedly installed on the mounting ring (53); the sliding rod (531) is slidably connected to the spiral rail on the reciprocating screw (50); A plurality of first air inlet heads (42) are fixedly mounted on the bottom end of the fixed cylinder (40), and a second one-way valve (421) is fixedly mounted on each first air inlet head (42); a plurality of second air inlet heads (43) are fixedly mounted on the top end of the fixed cylinder (40), and a fourth one-way valve (431) is fixedly mounted on each second air inlet head (43); A cavity is formed between the sealing plate (31) and the material taking barrel (30), and air outlet pipes (41) are fixedly installed on the top and bottom ends of the fixed barrel (40), and the two air outlet pipes (41) are both connected to the cavity, and first one-way valves (411) are fixedly installed on the two air outlet pipes (41).

5. The cotton airflow duct conveying device according to claim 4, characterized in that: A blowing plate (60) is fixedly installed at the other end of the storage box (20) so that a blowing cavity is formed on the inner side of the blowing plate (60). A plurality of blowing holes (602) are provided on the blowing plate (60). A first connecting pipe (61) is fixedly installed on the lower surface of the bottom plate (21). A cavity in the fixed cylinder (40) is connected to the blowing cavity through the first connecting pipe (61). A third one-way valve (611) is fixedly installed on the first connecting pipe (61).

6. The cotton airflow duct conveying device according to claim 4, characterized in that: An inclined guide plate (70) is installed on the other end of the storage box (20).

7. The cotton airflow duct conveying device according to claim 6, characterized in that: The top end of the inclined guide plate (70) is rotatably connected to the storage box (20), an inner rod (73) is rotatably mounted on the lower surface of the inclined guide plate (70), an outer cylinder (72) is fixedly mounted on the inner surface of the storage box (20), a piston plate (731) is fixedly mounted on the bottom end of the inner rod (73), and the piston plate (731) is slidably arranged inside the outer cylinder (72); A notch (501) is provided on the top of the reciprocating screw (50), and a plurality of communicating holes (502) are also provided on the top of the reciprocating screw (50). An air passage (301) is provided on the top of the material taking barrel (30), and the air passage (301) is communicated with the notch (501). A second connecting tube (71) is rotatably mounted on the top of the material taking barrel (30), and one end of the second connecting tube (71) is fixedly connected to the outer barrel (72).

8. The cotton airflow duct conveying device according to claim 7, characterized in that: A limiting ring (721) is fixedly mounted on the inner surface of the outer cylinder (72).