Conveying structure for composite filament production

Abstract

The invention relates to the technical field of conveying structures, in particular to a composite filament production conveying structure which comprises an aluminum oxide powder material conveying pipe and a silicon carbide powder material conveying pipe, and lifting stirring mechanisms and gas conveying extension mechanisms are arranged on the aluminum oxide powder material conveying pipe and the silicon carbide powder material conveying pipe; the lifting stirring mechanism comprises fixing pipes fixedly penetrating through the aluminum oxide powder material conveying pipe and the silicon carbide powder material conveying pipe, a lifting plate is arranged on the inner wall of each fixing pipe, and a stirring shaft rotationally penetrates through each lifting plate; the outer wall of each stirring shaft is fixedly connected with a telescopic sleeve for stirring an aluminum oxide powder material or a silicon carbide powder material; the gas transmission extension mechanism comprises moving grooves formed in the upper side and the lower side of the inner wall of the telescopic sleeve. The positions of internal and external materials can be changed, the preheating efficiency is improved, the subsequent compounding efficiency is improved, and the subsequent production operation is prevented from being influenced.

Description

Technical Field

[0001] The present invention relates to the technical field of conveying structures, and particularly to a conveying structure for composite wire production. Background Art

[0002] A pneumatic conveyor is a device that uses the principle of pneumatic conveying to efficiently and conveniently convey powdery materials from one location to another. When producing composite wires, alumina powder is added to enhance the wear resistance, high-temperature resistance, and insulation of the composite wires, and at the same time, silicon carbide powder is added to improve the hardness, wear resistance, and thermal conductivity of the composite wires.

[0003] When conveying powder raw materials, preheating is required. Preheating enables the powder to absorb and store a part of the energy, making it in a state between softening and unprocessed. It is easier during subsequent compounding, which is beneficial to the progress of the processing. When the preheating temperature is increased within a reasonable range, the mechanical properties of the composite wire parts can also be improved.

[0004] Currently, in the prior art during the production process of composite wires, it is necessary to convey the raw materials of the composite wires. During pneumatic conveying, the alumina raw materials and silicon carbide raw materials need to be heated and preheated separately. During the preheating process, only the raw materials in the conveying pipe are heated by a heating plate. Therefore, when heating the alumina raw materials and silicon carbide raw materials, the weights of the raw materials inside and outside the alumina powder material conveying pipe and the silicon carbide powder material conveying pipe are different, resulting in the inability of the raw materials inside to be fully preheated, causing the solid raw materials to block subsequent processing steps during the conveying process, thereby affecting the conveying of the alumina raw materials and silicon carbide raw materials, and further affecting the conveying efficiency. Summary of the Invention

[0005] The purpose of the present invention is to solve the drawbacks existing in the background art, and to propose a conveying structure for composite wire production.

[0006] To achieve the above purpose, the technical solution adopted by the present invention is: a conveying structure for composite wire production, including an alumina powder material conveying pipe and a silicon carbide powder material conveying pipe, and a lifting and stirring mechanism and a gas transmission extension mechanism are arranged on both the alumina powder material conveying pipe and the silicon carbide powder material conveying pipe; The lifting and stirring mechanism includes a fixed pipe fixedly penetrating through the alumina powder material conveying pipe and the silicon carbide powder material conveying pipe. A lifting plate is arranged on the inner wall of each fixed pipe, a stirring shaft is rotatably penetrated through each lifting plate, and a telescopic sleeve for stirring the alumina powder material or the silicon carbide powder material is fixedly connected to the outer wall of each stirring shaft; The gas transmission and extension mechanism includes moving grooves formed on the upper and lower sides of the inner wall of the telescopic sleeve. A moving block is slidably connected to the inner wall of each moving groove. An extension plate is fixedly connected between each group of moving blocks. It also includes a gas transmission channel arranged inside the stirring shaft. A plurality of air outlet holes are penetrated through the inner wall of each gas transmission channel. Each air outlet hole extends into the telescopic sleeve respectively. The air outlet holes are used to transport gas into the space between the telescopic sleeve and the extension plate, so as to push the extension plate to move outward and expand the stirring area.

[0007] Preferably, the lifting and stirring mechanism further includes a fixing frame fixedly connected to the outer wall of the fixed pipe. A fixing plate is fixedly connected to the bottom of the inner wall of each fixing frame. A hydraulic rod is fixedly connected between each group of fixing plates and the fixing frame. The telescopic end of each hydraulic rod is fixedly connected with a connecting frame. Each connecting frame is fixedly connected with each lifting plate respectively.

[0008] Preferably, the lifting and stirring mechanism further includes second chutes formed on both sides of the inner wall of the fixed pipe. A first slider is slidably connected to the inner wall of each second chute. Each group of first sliders is fixedly connected with each lifting plate respectively. It also includes a driving motor fixedly connected to the top of the inner wall of the connecting frame. The driving end of each driving motor is fixedly connected with the top end of each stirring shaft respectively. A sealing plate is fixedly connected to the bottom end of each stirring shaft.

[0009] Preferably, the gas transmission and extension mechanism further includes a circular cavity formed on the inner wall of the lifting plate, and an air inlet hole penetrated through the outer wall of the stirring shaft. The air inlet hole is used to connect the circular cavity and the gas transmission channel. A limiting frame is fixedly connected to each fixing plate. An air transmission pipe is arranged inside the inner wall of each limiting frame. Each air transmission pipe penetrates through each lifting plate respectively.

[0010] Preferably, a tension spring is symmetrically and fixedly connected between each extension plate and the stirring shaft. The tension spring is used to retract the non-working extension plate into the telescopic sleeve.

[0011] Preferably, a feed pipe is fixedly penetrated through one side of the top end of both the alumina powder material conveying pipe and the silicon carbide powder material conveying pipe. A composite spinning assembly is fixedly connected to one end of both the alumina powder material conveying pipe and the silicon carbide powder material conveying pipe. A plurality of heating plates are fixedly connected to the outer walls of both the alumina powder material conveying pipe and the silicon carbide powder material conveying pipe.

[0012] Preferably, U-shaped plates are fixedly connected to the other ends of both the alumina powder material conveying pipe and the silicon carbide powder material conveying pipe. Electric push rods are fixedly penetrated through both U-shaped plates. The telescopic ends of both electric push rods are fixedly connected with a pushing plate.

[0013] Preferably, baffles are slidably penetrated through both the alumina powder material conveying pipe and the silicon carbide powder material conveying pipe. At the bottom of one end of each of the two baffles close to the composite spinning assembly, a limiting rod is fixedly connected. At the position close to the baffle on the inner wall top of the alumina powder material conveying pipe and the silicon carbide powder material conveying pipe, a limiting groove is provided. At the position close to the baffle at the top of the alumina powder material conveying pipe and the silicon carbide powder material conveying pipe, a three-stage cylinder is fixedly connected. The telescopic ends of the two three-stage cylinders are fixedly connected with a fixing block, and the two fixing blocks and the two baffles are respectively fixedly connected.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. Through the arranged lifting and stirring mechanism, the stirring shaft and the telescopic sleeve can be extended into the alumina raw material or the silicon carbide raw material during the preheating process. Therefore, the alumina raw material or the silicon carbide raw material can be stirred during the heating process, so that the positions of the internal and external raw materials can be changed, and the alumina raw material or the silicon carbide raw material can be better preheated. Thus, it can ensure that the conveyed alumina raw material or silicon carbide raw material can better carry out the subsequent composite steps, improve production efficiency, and prevent affecting the subsequent production operations. 2. Through the arranged gas transmission and extension mechanism, gas can be input into the gas transmission channel. The gas enters between the fixed sleeve and the extension plate through the air outlet hole, and when the internal air pressure is greater than the pulling force of the tension spring, the extension plate extends out of the fixed sleeve, thereby expanding the stirring range. Therefore, the preheating efficiency of the alumina raw material or the silicon carbide raw material can be improved, and further the subsequent production and processing efficiency can be improved. Description of the Drawings

[0015] Figure 1 It is a schematic diagram of the overall structure of a conveying structure for producing composite filaments according to the present invention; Figure 2 It is a sectional view of the alumina powder material conveying pipe of a conveying structure for producing composite filaments according to the present invention; Figure 3 It is a conveying structure for producing composite filaments according to the present invention Figure 2 Enlarged view of part A; Figure 4 It is a conveying structure for producing composite filaments according to the present invention Figure 2 Enlarged view of part B; Figure 5 It is a sectional view of the fixed pipe of a conveying structure for producing composite filaments according to the present invention; Figure 6 It is a sectional view of the lifting plate of a conveying structure for producing composite filaments according to the present invention; Figure 7 It is a sectional view of the stirring shaft of a conveying structure for producing composite filaments according to the present invention; Figure 8This is a structural display diagram of the alumina powder material conveying pipe of a conveying structure for the production of composite filaments according to the present invention.

[0016] In the figure: 1, alumina powder material conveying pipe; 2, silicon carbide powder material conveying pipe; 3, fixed pipe; 4, baffle; 5, composite spinning assembly; 6, fixing plate; 7, fixing frame; 8, heating plate; 9, feed pipe; 10, U-shaped plate; 11, electric push rod; 12, pushing plate; 13, hydraulic rod; 14, sealing plate; 15, connecting frame; 16, driving motor; 17, gas supply pipe; 18, limiting frame; 19, limiting rod; 21, extension plate; 22, stirring shaft; 23, telescopic sleeve; 24, lifting plate; 25, circular cavity; 26, first slider; 27, second chute; 28, gas supply channel; 29, air inlet hole; 30, tension spring; 31, moving block; 32, moving groove; 33, air outlet hole; 34, limiting groove; 35, fixing block; 36, three-stage cylinder. Detailed implementation manners

[0017] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations.

[0018] As Figures 1-8 shown, a conveying structure for the production of composite filaments includes an alumina powder material conveying pipe 1 and a silicon carbide powder material conveying pipe 2. During the conveying process, alumina powder and silicon carbide powder are respectively fed into the pipes together with high-pressure gas for conveying. Both the alumina powder material conveying pipe 1 and the silicon carbide powder material conveying pipe 2 are provided with a lifting and stirring mechanism and a gas supply and extension mechanism. Through the lifting and stirring mechanism, the raw materials in the alumina powder material conveying pipe 1 and the silicon carbide powder material conveying pipe 2 can be stirred, and the positions of the internal and external raw materials can be alternately changed, so that the alumina raw material or the silicon carbide raw material can be thoroughly preheated, which is convenient for its conveying process and avoids blockage during conveying. Through the provided gas supply and extension mechanism, the stirring range can be expanded, and the preheating efficiency of the alumina raw material or the silicon carbide raw material can be accelerated; As Figure 5 、 Figure 6 shown, the lifting and stirring mechanism includes a fixed pipe 3 fixedly penetrating through the alumina powder material conveying pipe 1 and the silicon carbide powder material conveying pipe 2. The inner wall of each fixed pipe 3 is provided with a lifting plate 24, and each lifting plate 24 is rotatably penetrated by a stirring shaft 22. The outer wall of each stirring shaft 22 is fixedly connected with a telescopic sleeve 23 for stirring the alumina powder material or the silicon carbide powder material; As Figure 6 、 Figure 7As shown, the gas transmission extension mechanism includes moving grooves 32 formed on the upper and lower sides of the inner wall of the telescopic sleeve 23. A moving block 31 is slidably connected to the inner wall of each moving groove 32. An extension plate 21 is fixedly connected between each group of moving blocks 31. It also includes a gas transmission channel 28 arranged inside the stirring shaft 22. A plurality of air outlet holes 33 penetrate through the inner wall of each gas transmission channel 28. Each air outlet hole 33 extends into the telescopic sleeve 23 respectively. The air outlet holes 33 are used to convey gas into the space between the telescopic sleeve 23 and the extension plate 21, thereby pushing the extension plate 21 to move outward and expanding the stirring area.

[0019] As Figure 7 , Figure 8 shown, the lifting and stirring mechanism further includes a fixing frame 7 fixedly connected to the outer wall of the fixed pipe 3. A fixing plate 6 is fixedly connected to the bottom of the inner wall of each fixing frame 7. A hydraulic rod 13 is fixedly connected between each group of fixing plates 6 and the fixing frame 7. The telescopic end of each hydraulic rod 13 is fixedly connected to a connecting frame 15. Each connecting frame 15 is fixedly connected to each lifting plate 24 respectively. The fixing frame 7 and the fixing plate 6 limit and fix the hydraulic rod 13 to ensure the stability of the hydraulic rod 13 during operation. Since the hydraulic rod 13 and the connecting frame 15 are fixed together, the connecting frame 15 can be moved up and down, thereby driving the lifting plate 24 to move up and down to complete the extension and retraction operations.

[0020] As Figure 3 , Figure 6 shown, the lifting and stirring mechanism further includes second sliding grooves 27 formed on both sides of the inner wall of the fixed pipe 3. A first slider 26 is slidably connected to the inner wall of each group of second sliding grooves 27. Each group of first sliders 26 is fixedly connected to each lifting plate 24 respectively. It also includes a driving motor 16 fixedly connected to the top of the inner wall of the connecting frame 15. The driving end of each driving motor 16 is fixedly connected to the top end of each stirring shaft 22. A sealing plate 14 is fixedly connected to the bottom end of each stirring shaft 22. By providing the second sliding grooves 27 and the first sliders 26, the lifting plate 24 can be limited, so that the sealing plate 14 can be just retracted into the fixed pipe 3, and the bottom of the sealing plate 14 is flush with the bottom of the fixed pipe 3. The driving motor 16 drives the stirring shaft 22 to rotate and stir the raw materials.

[0021] As Figure 6 , Figure 7As shown in the figure, the gas transmission extension mechanism further includes a circular cavity 25 opened on the inner wall of the lifting plate 24, and an air inlet hole 29 penetrating through the outer wall of the stirring shaft 22. The air inlet hole 29 is used to connect the circular cavity 25 and the gas transmission channel 28. A limiting frame 18 is fixedly connected to each fixing plate 6, and an air transmission pipe 17 is arranged on the inner wall of each limiting frame 18. Each air transmission pipe 17 and each lifting plate 24 are respectively fixedly penetrated. A tension spring 30 is symmetrically and fixedly connected between each extension plate 21 and the stirring shaft 22. The tension spring 30 is used to retract the non-working extension plate 21 into the telescopic sleeve 23. By providing the circular cavity 25 and the air inlet hole 29, gas can enter the gas transmission channel 28. The air transmission pipe 17 is limited by the limiting frame 18, and the air transmission pipe 17 moves up and down with the lifting plate 24. By providing the tension spring 30, the extension plate 21 can be retracted into the telescopic sleeve 23 when the gas transmission stops.

[0022] As Figure 1 shown in the figure, a feed pipe 9 is fixedly penetrated through one side of the top of both the alumina powder material transmission pipe 1 and the silicon carbide powder material transmission pipe 2. A composite spinning assembly 5 is fixedly connected to one end of both the alumina powder material transmission pipe 1 and the silicon carbide powder material transmission pipe 2. A plurality of heating plates 8 are fixedly connected to the outer walls of both the alumina powder material transmission pipe 1 and the silicon carbide powder material transmission pipe 2. The raw materials are conveyed into the alumina powder material transmission pipe 1 and the silicon carbide powder material transmission pipe 2 respectively through the provided feed pipe 9, and the preheated raw materials are conveyed for the production of composite filaments. The raw materials are heat-treated by the heating plates 8.

[0023] As Figure 1 、 Figure 2 、 Figure 4 shown in the figure, U-shaped plates 10 are fixedly connected to the other ends of both the alumina powder material transmission pipe 1 and the silicon carbide powder material transmission pipe 2. Electric push rods 11 are fixedly penetrated through both U-shaped plates 10. The telescopic ends of both electric push rods 11 are fixedly connected with a pushing plate 12. By moving the pushing plate 12 with the electric push rod 11, the preheated raw materials in the alumina powder material transmission pipe 1 and the silicon carbide powder material transmission pipe 2 can be conveyed out.

[0024] As Figure 2 、 Figure 8As shown in the figure, baffles 4 slide through both the alumina powder material delivery pipe 1 and the silicon carbide powder material delivery pipe 2. At the bottom of one end of the two baffles 4 close to the composite spinning assembly 5, limiting rods 19 are fixedly connected. At the position near the baffle 4 at the top inner wall of the alumina powder material delivery pipe 1 and the silicon carbide powder material delivery pipe 2, limiting grooves 34 are provided. At the position near the baffle 4 at the top of the alumina powder material delivery pipe 1 and the silicon carbide powder material delivery pipe 2, three-stage cylinders 36 are fixedly connected. The telescopic ends of the two three-stage cylinders 36 are fixedly connected with fixing blocks 35, and the two fixing blocks 35 and the two baffles 4 are respectively fixedly connected. By providing the baffle 4, the raw materials can be blocked during preheating to prevent the raw materials that are not thoroughly preheated from flowing out and avoid blockage. Through the cooperation of the limiting rod 19 and the limiting groove 34, the bottom of the baffle 4 can be flush with the top inner wall of the alumina powder material delivery pipe 1 or the silicon carbide powder material delivery pipe 2, which is convenient for the movement of the push plate 12. By moving the fixing block 35 up and down with the three-stage cylinder 36, the baffle 4 can be moved up and down accordingly.

[0025] Working principle: First, the alumina powder material and the silicon carbide powder material are respectively delivered into the alumina powder material delivery pipe 1 and the silicon carbide powder material delivery pipe 2 through the feed pipes 9 on the alumina powder material delivery pipe 1 and the silicon carbide powder material delivery pipe 2. Then, the electric push rod 11 is started to push the push plate 12 to move towards the direction close to the baffle 4, and the raw materials are located between the push plate 12, the baffle 4 and the alumina powder material delivery pipe 1 or the silicon carbide powder material delivery pipe 2. At this time, the heating plate 8 is started to preheat the raw materials between the alumina powder material delivery pipe 1 and the silicon carbide powder material delivery pipe 2. After that, the hydraulic rod 13 is started to push the connecting frame 15 and the lifting plate 24 to move downward, thereby driving the stirring shaft 22 and the sealing plate 14 to move downward, and the telescopic sleeve 23 is completely extended from the fixed pipe 3. At this time, the driving motor 16 is started to drive the stirring shaft 22 and the telescopic sleeve 23 to rotate. Therefore, the raw materials in the alumina powder material delivery pipe 1 and the silicon carbide powder material delivery pipe 2 can be stirred, so that the internal and external raw materials can be exchanged in position, enabling the raw materials to be better preheated, completely preheated, improving the subsequent composite efficiency, and preventing the impact on subsequent production operations. During the stirring process, gas is delivered into the circular cavity 25 through the air delivery pipe 17. At this time, the gas enters the air delivery channel 28 through the air inlet hole 29, and then enters between the telescopic sleeve 23 and the extension plate 21 through the air outlet hole 33. When the gas pressure between the telescopic sleeve 23 and the extension plate 21 is greater than the pulling force of the tension spring 30, the extension plate 21 extends out of the telescopic sleeve 23. Therefore, the stirring range can be expanded, the position exchange can be carried out in a larger range, thereby accelerating the preheating process of the raw materials, improving the preheating efficiency, and enhancing the subsequent production and processing efficiency. After the preheating is completed, the supply of gas is stopped. At this time, due to the elasticity of the tension spring 30, the extension plate 21 is retracted into the telescopic sleeve 23. At the same time, the hydraulic rod 13 is started in the reverse direction to drive the connecting frame 15 and the lifting plate 24 to move upward. Due to the presence of the first slider 26 and the second chute 27, the sealing plate 14 can just be retracted into the fixed tube 3 and be flush with the bottom of the fixed tube 3. At this time, the three-stage cylinder 36 is started to drive the fixed block 35 to move upward, so as to drive the baffle 4 to move upward and make the connecting frame 15 stuck in the limit groove 34, completing the limit treatment of the baffle 4. At this time, the alumina powder material conveying pipe 1 and the silicon carbide powder material conveying pipe 2 are in a completely open state. Then, the electric push rod 11 is started to push the push plate 12 to continue moving. Therefore, the raw materials in the alumina powder material conveying pipe 1 and the silicon carbide powder material conveying pipe 2 can be pushed into the composite spinning assembly 5, and the composite spinning assembly 5 is used to produce composite filaments.

[0026] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A conveying structure for composite wire production, comprising an alumina powder material conveying pipe (1) and a silicon carbide powder material conveying pipe (2), characterized in that: The aluminum oxide powder material conveying pipe (1) and the silicon carbide powder material conveying pipe (2) are both provided with a lifting and stirring mechanism and a gas conveying and extending mechanism; The lifting and stirring mechanism comprises a fixed tube (3) fixedly passing through the aluminum oxide powder material conveying tube (1) and the silicon carbide powder material conveying tube (2), each of the fixed tubes (3) being provided with a lifting plate (24) on its inner wall, each of the lifting plates (24) being rotatably passed through a stirring shaft (22), and each of the stirring shafts (22) being fixedly connected to its outer wall with a telescopic sleeve (23) for stirring the aluminum oxide powder material or the silicon carbide powder material; The gas delivery extension mechanism comprises a moving groove (32) provided on the upper and lower sides of the inner wall of the telescopic sleeve (23), each inner wall of the moving groove (32) is slidably connected to a moving block (31), and an extension plate (21) is fixedly connected between each group of the moving blocks (31). It also comprises a gas delivery channel (28) arranged inside the stirring shaft (22), each inner wall of the gas delivery channel (28) is pierced with a plurality of gas outlet holes (33), each gas outlet hole (33) extends into the interior of the telescopic sleeve (23), and the gas outlet holes (33) are used to deliver gas into between the telescopic sleeve (23) and the extension plate (21), thereby pushing the extension plate (21) to move outward and expanding the stirring area.

2. A conveying structure for composite yarn production according to claim 1, characterized in that: The lifting and stirring mechanism further comprises a fixing frame (7) fixedly connected to the outer wall of the fixing tube (3); a fixing plate (6) is fixedly connected to the bottom of the inner wall of each fixing frame (7); a hydraulic rod (13) is fixedly connected between each group of the fixing plates (6) and the fixing frame (7); a connecting frame (15) is fixedly connected to the telescopic end of each hydraulic rod (13); and each connecting frame (15) is fixedly connected to each lifting plate (24), respectively.

3. A conveying structure for composite yarn production according to claim 2, characterized in that: The lifting and stirring mechanism further comprises second slide grooves (27) provided on both sides of the inner wall of the fixed tube (3), the inner wall of each group of the second slide grooves (27) being slidably connected to a first slider (26), each group of the first slider (26) being fixedly connected to each lifting plate (24), and further comprises a driving motor (16) fixedly connected to the top of the inner wall of the connecting frame (15), the driving end of each driving motor (16) being fixedly connected to the top of each stirring shaft (22), and the bottom end of each stirring shaft (22) being fixedly connected to a sealing plate (14).

4. A conveying structure for composite yarn production according to claim 3, characterized in that: The gas delivery extension mechanism also includes a circular cavity (25) formed on the inner wall of the lifting plate (24), and an air inlet hole (29) formed on the outer wall of the stirring shaft (22), the air inlet hole (29) being used to connect the circular cavity (25) and the gas delivery channel (28), each of the fixed plates (6) being fixedly connected to a limit frame (18), each of the limit frames (18) being provided with an air delivery pipe (17), and each of the air delivery pipes (17) and each of the lifting plates (24) being fixedly penetrated.

5. A conveying structure for composite yarn production according to claim 4, characterized in that: A tension spring (30) is symmetrically and fixedly connected between each of the extension plates (21) and the stirring shaft (22), and the tension spring (30) is used to store the non-operating extension plate (21) into the telescopic sleeve (23).

6. A conveying structure for composite yarn production according to claim 1, characterized in that: A feed pipe (9) is fixedly passed through one side of the top end of the alumina powder material conveying pipe (1) and the silicon carbide powder material conveying pipe (2); a composite spinning assembly (5) is fixedly connected to one end of the alumina powder material conveying pipe (1) and the silicon carbide powder material conveying pipe (2); and a plurality of heating plates (8) are fixedly connected to the outer walls of the alumina powder material conveying pipe (1) and the silicon carbide powder material conveying pipe (2).

7. A conveying structure for composite yarn production according to claim 1, characterized in that: The other ends of the aluminum oxide powder material conveying pipe (1) and the silicon carbide powder material conveying pipe (2) are both fixedly connected to a U-shaped plate (10), an electric push rod (11) is fixedly passed through the two U-shaped plates (10), and the telescopic ends of the two electric push rods (11) are both fixedly connected to a push plate (12).

8. The conveying structure for composite yarn production according to claim 1, characterized in that: The alumina powder material conveying pipe (1) and the silicon carbide powder material conveying pipe (2) are both slidably penetrated by a baffle (4); the bottom of one end of the two baffles (4) close to the composite spinning assembly (5) is fixedly connected to a limiting rod (19); the top of the inner wall of the alumina powder material conveying pipe (1) and the silicon carbide powder material conveying pipe (2) is provided with a limiting groove (34) close to the baffle (4); the top of the alumina powder material conveying pipe (1) and the silicon carbide powder material conveying pipe (2) is fixedly connected to a three-stage cylinder (36) close to the baffle (4); the telescopic ends of the two three-stage cylinders (36) are fixedly connected to a fixing block (35); the two fixing blocks (35) and the two baffles (4) are fixedly connected respectively.

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