A novel carbon paper web forming device

Abstract

This utility model discloses a novel carbon paper web forming device, relating to the field of carbon paper production technology, including an air-flow web forming machine; a conveying roller is provided on the side end of the air-flow web forming machine; a carbon paper component is provided on the conveying roller; a support plate is provided on the side end of the conveying roller; a top plate is fixedly connected to the top of the support plate; a dryer is fixedly connected to the bottom end of the top plate; a dispersing plate is fixedly connected to the bottom end of the dryer, and the dispersing plate is located above the carbon paper component; a drying unit is provided at the bottom end of the carbon paper component; by simultaneously drying the upper and lower surfaces of the carbon paper component, the drying uniformity is significantly improved, ensuring consistent moisture content of the web, providing a stable foundation for uniform resin penetration in subsequent impregnation, curing and other processes, ultimately improving the structural consistency and performance stability of the carbon paper component, simplifying the production process, and improving overall production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of carbon paper production technology, specifically to a novel carbon paper web forming device. Background Technology

[0002] Carbon paper, as a functional material with porous, conductive, and high-temperature resistant properties, has a wide range of applications in fuel cells, aerospace, filtration and other fields. Its production process usually includes multiple steps such as fiber raw material pretreatment, web forming, impregnation, curing and carbonization. Among them, web forming is the key process that determines the uniformity of carbon paper structure and subsequent performance, and directly affects the core indicators of carbon paper such as density, air permeability and mechanical strength.

[0003] In current carbon paper production, web formation is mainly accomplished by air-flow web forming machines or mechanical web forming machines. Air-flow web forming machines disperse and suspend short carbon fibers using high-speed airflow, and then use negative pressure adsorption to form a continuous fiber web on the screen. Mechanical web forming machines use rollers with needle cloth to comb the fibers, and achieve directional or semi-directional fiber arrangement through a cross-laying mechanism. Both methods require a screen conveyor to transfer the formed fiber web to subsequent processes.

[0004] After carbon paper is laid and formed, it usually needs to be dried to remove residual moisture, solvents or curing temporary adhesives from the fiber web. However, traditional drying methods are mostly offline or delayed, meaning that the fiber web needs to be transferred after leaving the web laying machine before entering the drying equipment, making it difficult to achieve an immediate connection between web laying and drying. At the same time, traditional drying equipment mostly uses single-sided hot air, which cannot heat the upper and lower surfaces of the fiber web evenly at the same time, which can easily lead to uneven drying of the carbon paper, thereby affecting the resin penetration effect in the subsequent impregnation process, and ultimately reducing the consistency and performance stability of the carbon paper product. Utility Model Content

[0005] The purpose of this invention is to provide a novel carbon paper web forming device to solve the technical problem that the existing technology mostly uses single-sided hot air, which cannot simultaneously heat the upper and lower surfaces of the fiber web evenly, easily leading to uneven drying of the carbon paper, which in turn affects the resin penetration effect in the subsequent impregnation process, and ultimately reduces the consistency and performance stability of the carbon paper product.

[0006] The technical problem to be solved by this utility model can be achieved through the following technical solution:

[0007] A novel carbon paper web forming device includes an air-flow web forming machine; a conveying roller is provided on the side end of the air-flow web forming machine; a carbon paper component is provided on the conveying roller; a support plate is provided on the side end of the conveying roller; a top plate is fixedly connected to the top of the support plate; a dryer is fixedly connected to the bottom end of the top plate; a dispersing plate is fixedly connected to the bottom end of the dryer, and the dispersing plate is located above the carbon paper component; a drying unit is provided at the bottom end of the carbon paper component.

[0008] As a further embodiment of this utility model: the drying unit includes a conveyor belt; the conveyor belt is located at the side end of the conveyor roller, and a through groove is formed inside the conveyor belt; a drying shell is fixedly connected inside the conveyor belt; a motor is fixedly connected to the inner wall of the drying shell; a rotating rod is fixedly connected to the output end of the motor; a fan blade is fixedly connected to the top end of the rotating rod; a heating wire is fixedly connected to the inner wall of the drying shell; an exhaust groove is formed inside the drying shell, and the exhaust groove is located below the carbon paper component.

[0009] As a further embodiment of this utility model: a telescopic cylinder is fixedly connected to the inner side wall of the support plate; a limiting roller is rotatably connected to the bottom end of the telescopic cylinder, and the limiting roller is located above the carbon paper component.

[0010] As a further embodiment of this utility model: a heating roller is provided at the side end of the conveyor belt; a heating machine is provided inside the heating roller.

[0011] The beneficial effects of this invention are as follows: By directly connecting the upper and lower double-sided drying structures after the air-laid web machine, the instantaneous linkage between carbon paper web forming and drying is achieved, eliminating the lag in fiber web transfer in traditional processes and effectively avoiding fiber agglomeration or contamination that may occur during transfer. At the same time, by simultaneously drying the upper and lower sides of the carbon paper, the drying uniformity is significantly improved, ensuring consistent moisture content of the fiber web. This provides a stable foundation for uniform resin penetration in subsequent impregnation, curing, and other processes, ultimately improving the structural consistency and performance stability of the carbon paper, simplifying the production process, and enhancing overall production efficiency. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings.

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the dryer structure in this utility model;

[0015] Figure 3 This is a schematic diagram of the drying shell structure in this utility model;

[0016] In the diagram: 1. Airflow web laying machine; 2. Top plate; 3. Support plate; 4. Carbon paper component; 5. Conveyor roller; 6. Dryer; 7. Dispersing plate; 8. Conveyor belt; 9. Drying shell; 10. Motor; 11. Rotating rod; 12. Fan blade; 13. Heating wire; 14. Exhaust trough; 15. Heating roller; 16. Telescopic cylinder; 17. Limiting roller. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0018] like Figures 1-3 As shown, a novel carbon paper web forming device includes an airflow web forming machine 1; a conveying roller 5 is provided on the side end of the airflow web forming machine 1; a carbon paper component 4 is provided on the conveying roller 5; a support plate 3 is provided on the side end of the conveying roller 5; a top plate 2 is fixedly connected to the top of the support plate 3; a dryer 6 is fixedly connected to the bottom end of the top plate 2; a dispersing plate 7 is fixedly connected to the bottom end of the dryer 6, and the dispersing plate 7 is located above the carbon paper component 4; a drying unit is provided at the bottom end of the carbon paper component 4.

[0019] During operation, the carbon paper part 4 is processed by the air-flow web-laying machine 1 and then conveyed to the conveyor belt 8 by the conveyor roller 5. The conveyor belt 8 can transport the carbon paper part 4. The top plate 2 and the support plate 3 can fix the position of the dryer 6. The hot air generated inside the dryer 6 is discharged through the dispersion plate 7 to dry the carbon paper part 4. By directly connecting the upper and lower double-sided drying structure after the air-flow web-laying machine 1, the carbon paper web-laying and drying process is linked in real time, eliminating the lag in the fiber web transfer in the traditional process and effectively avoiding fiber agglomeration or contamination that may occur during the transfer process. At the same time, by drying the upper and lower sides of the carbon paper part 4 simultaneously, the drying uniformity is significantly improved, ensuring that the moisture content of the fiber web is consistent. This provides a stable foundation for the uniform penetration of resin in subsequent impregnation, curing and other processes, ultimately improving the structural consistency and performance stability of the carbon paper part 4, simplifying the production process and improving the overall production efficiency.

[0020] The drying unit includes a conveyor belt 8; the conveyor belt 8 is located at the side end of the conveyor roller 5, and a through groove is opened inside the conveyor belt 8; a drying shell 9 is fixedly connected inside the conveyor belt 8; a motor 10 is fixedly connected to the inner wall of the drying shell 9; a rotating rod 11 is fixedly connected to the output end of the motor 10; a fan blade 12 is fixedly connected to the top end of the rotating rod 11; a heating wire 13 is fixedly connected to the inner wall of the drying shell 9; an exhaust groove 14 is opened inside the drying shell 9, and the exhaust groove 14 is located below the carbon paper component 4.

[0021] The internal groove of the conveyor belt 8 is set with mesh holes. The motor 10 inside the drying shell 9 causes the rotating rod 11 to rotate. The rotation of the rotating rod 11 causes the fan blade 12 to rotate, blowing the heat on the heating wire 13 towards the exhaust groove 14. The hot air flows through the exhaust groove 14 and through the groove of the conveyor belt 8 to dry the bottom of the carbon paper 4. With the help of the dryer 6, the top and bottom of the carbon paper 4 can be dried.

[0022] A telescopic cylinder 16 is fixedly connected to the inner wall of the support plate 3; the bottom end of the telescopic cylinder 16 is rotatably connected to a limiting roller 17, which is located above the carbon paper component 4.

[0023] To prevent the carbon paper part 4 from being blown away by the airflow of the drying shell 9 and changing its position, the position of the carbon paper part 4 can be limited by the limiting roller 17. The height of the limiting roller 17 can be adjusted by the telescopic cylinder 16, and the carbon paper part 4 of different sizes can be limited.

[0024] The side end of the conveyor belt 8 is provided with a heating roller 15; the heating roller 15 is provided with a heater inside.

[0025] The conveyor belt 8 transports the carbon paper 4 to the heating roller 15. The internal heater of the heating roller 15 is activated, and the surface of the heating roller 15 is heated to generate high temperature. The carbon paper 4 is dried after passing through the surface of the heating roller 15.

[0026] The working principle of this utility model is as follows: During operation, the carbon paper part 4 is processed by the airflow web forming machine 1 and then conveyed to the conveyor belt 8 by the conveyor roller 5. The conveyor belt 8 can transport the carbon paper part 4. The top plate 2 and the support plate 3 can fix the position of the dryer 6. The hot air generated inside the dryer 6 is discharged through the dispersion plate 7 to dry the carbon paper part 4. The through groove inside the conveyor belt 8 is set with mesh holes. The motor 10 inside the drying shell 9 causes the rotating rod 11 to rotate. The rotation of the rotating rod 11 causes the fan blade 12 to rotate and blow the heat on the heating wire 13 to the exhaust groove 14. The hot airflow passes through the exhaust groove 14 and through the through groove of the conveyor belt 8 to dry the bottom of the carbon paper part 4. Together with the dryer 6, the top and bottom surfaces of the carbon paper part 4 can be dried. By directly connecting the upper and lower double-sided drying structure after the airflow web forming machine 1, the instantaneous linkage between carbon paper web forming and drying is realized, eliminating the need for fiber web transfer in the traditional process. The delayed transportation process effectively avoids fiber agglomeration or contamination that may occur during the transfer process. At the same time, by simultaneously drying both the top and bottom surfaces of the carbon paper part 4, the drying uniformity is significantly improved, ensuring consistent moisture content of the fiber web. This provides a stable foundation for uniform resin penetration in subsequent impregnation and curing processes, ultimately improving the structural consistency and performance stability of the carbon paper part 4, simplifying the production process, and increasing overall production efficiency. To prevent the carbon paper part 4 from being blown away by the airflow of the drying shell 9 and changing its position, the position of the carbon paper part 4 can be limited by the limiting roller 17, and the height of the limiting roller 17 can be adjusted by the telescopic cylinder 16, allowing for limiting according to different sizes of carbon paper part 4. The conveyor belt 8 transports the carbon paper part 4 to the heating roller 15, where the internal heater is activated, generating high temperatures on the surface of the heating roller 15. The carbon paper part 4 undergoes drying treatment after passing over the surface of the heating roller 15.

[0027] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A novel carbon paper web forming device, characterized in that, The system includes an air-flow web-laying machine (1); a conveying roller (5) is provided on the side end of the air-flow web-laying machine (1); carbon paper (4) is provided on the conveying roller (5); a support plate (3) is provided on the side end of the conveying roller (5); a top plate (2) is fixedly connected to the top of the support plate (3); a dryer (6) is fixedly connected to the bottom end of the top plate (2); a dispersing plate (7) is fixedly connected to the bottom end of the dryer (6), and the dispersing plate (7) is located above the carbon paper (4); a drying unit is provided at the bottom end of the carbon paper (4).

2. The novel carbon paper web forming device according to claim 1, characterized in that, The drying unit includes a conveyor belt (8); the conveyor belt (8) is located at the side end of the conveyor roller (5), and a through groove is provided inside the conveyor belt (8); a drying shell (9) is fixed inside the conveyor belt (8); a motor (10) is fixed to the inner wall of the drying shell (9); a rotating rod (11) is fixed to the output end of the motor (10); a fan blade (12) is fixed to the top of the rotating rod (11); a heating wire (13) is fixed to the inner wall of the drying shell (9); an exhaust groove (14) is provided inside the drying shell (9), and the exhaust groove (14) is located below the carbon paper component (4).

3. The novel carbon paper web forming device according to claim 1, characterized in that, The inner wall of the support plate (3) is fixed with a telescopic cylinder (16); the bottom end of the telescopic cylinder (16) is rotatably connected to a limiting roller (17), which is located above the carbon paper component (4).

4. The novel carbon paper web forming device according to claim 2, characterized in that, The conveyor belt (8) is provided with a heating roller (15) at its side end; the heating roller (15) is provided with a heater inside.

Images