Carbon fiber processing pre-oxidation device
By designing a cooling box and a rotating mechanism, uniform cooling was achieved during the carbon fiber pre-oxidation process, solving the problem of uneven cooling in existing devices and improving safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DALIAN XINDE NEW MATERIAL TECH CO LTD
- Filing Date
- 2025-05-20
- Publication Date
- 2026-05-29
AI Technical Summary
The cooling devices in existing carbon fiber processing equipment do not provide uniform cooling, which can lead to excessively high temperatures and potentially burn workers.
A carbon fiber pre-oxidation device including a cooling box and a rotating mechanism was designed. The rotating mechanism and the fan work together to achieve uniform airflow distribution for cooling.
Uniform cooling of carbon fibers was achieved, improving safety and avoiding the risk of burns caused by excessively high temperatures.
Smart Images

Figure CN224299471U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of carbon fiber processing technology, specifically to a carbon fiber pre-oxidation device. Background Technology
[0002] Carbon fiber is a new type of high-strength, high-modulus fiber material with a carbon content of over 95%. It is a microcrystalline graphite material obtained by stacking organic fibers such as sheet-like graphite microcrystals along the fiber axis and undergoing carbonization and graphitization treatments. Carbon fiber is "flexible on the outside but rigid on the inside," lighter than aluminum but stronger than steel, and possesses corrosion resistance and high modulus properties, making it an important material in both defense and civilian applications. It not only possesses the inherent properties of carbon materials but also combines the flexibility and processability of textile fibers, making it a new generation of reinforcing fibers. Pre-oxidation is one of the key steps in manufacturing carbon fiber. During pre-oxidation, the precursor fiber undergoes dehydrogenation, causing changes in its molecular structure to meet the requirements of subsequent carbonization.
[0003] An existing patent (publication number: CN202121697555.8) discloses a carbon fiber pre-oxidation processing device, including a base plate, on which a pre-oxidation processing device is mounted, an oxygen inlet pipe is mounted on the pre-oxidation processing device, and a regulating valve is mounted on the oxygen inlet pipe. The pre-oxidation processing device includes an outer shell, with an inlet and an outlet at each end of the outer shell. Several sets of guide wheels are mounted inside the outer shell via a rotating shaft. A heat-insulating base plate is mounted at the bottom of the outer shell, and an electric heater is mounted on the heat-insulating base plate. An electric heating plate is installed inside the electric heater, and a cooling device is mounted at the front end of the pre-oxidation processing device.
[0004] In the process of realizing this utility model, the inventors discovered the following problems with the prior art: the cooling device of the device is relatively crude and cannot guarantee the uniformity of cooling. Utility Model Content
[0005] In view of the shortcomings of the existing technology, this utility model provides a carbon fiber processing pre-oxidation device, which solves the problem that the cooling device of the existing device is relatively crude and cannot guarantee the uniformity of cooling.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a carbon fiber processing pre-oxidation device, comprising a cooling box, a first motor installed in the bottom surface of one side of the cooling box, a rotating rod driven by the first motor, the rotating rod being rotatably connected between the side walls of the cooling box, a pair of rotating mechanisms connected to the rotating rod, a connecting frame fixedly connected between the inner walls of the cooling box, a plurality of rotating rollers rotatably connected within the connecting frame, a third motor installed on the side wall of the cooling box, a connecting shaft provided at the driving end of the third motor, the connecting shaft being rotatably connected within the connecting frame and having an active roller, the active roller being rotatably connected within the connecting frame, the rotating mechanism including a first gear mounted on the rotating rod, fixed plates provided on both the upper and lower inner walls of the cooling box, a rotating shaft rotatably mounted within the fixed plates, a rotating plate fixedly connected to the rotating shaft, a plurality of round holes provided on both the rotating plate and the fixed plate, a second gear provided on the side wall of the rotating plate, the second gear meshing with the first gear, and a fan provided on the bottom surface of the cooling box.
[0007] Preferably, the oxidation chamber is also included, which is connected to the cooling chamber. One end of the oxidation chamber is provided with a feed inlet, and the end of the cooling chamber away from the oxidation chamber is provided with a discharge outlet. A second motor is provided on the side wall of the oxidation chamber, and an oxygen valve is provided on the upper wall of the oxidation chamber.
[0008] Preferably, the side wall of the feed inlet is provided with a dehumidification box.
[0009] Preferably, the output end of the fan is equipped with a wind deflector.
[0010] Preferably, the side wall of the cooling box is provided with a pair of side plates, and each pair of side plates is provided with a pair of support legs at its lower end.
[0011] Beneficial effects
[0012] This invention provides a carbon fiber pre-oxidation device. The device features a structure designed to achieve uniform cooling during the oxidation process. When cooling is required, the first motor is activated, causing the rotating plate to align vertically with several circular holes on the fixed plate. External airflow then enters the cooling chamber. A fan is activated to direct the airflow towards the carbon fibers. After being diverted by a baffle plate, the airflow ensures uniform contact with the carbon fibers. This device, through its cooling structure design, achieves uniform cooling of the carbon fibers, meeting the requirements for cooling after carbon fiber pre-oxidation. It also solves the problem of excessively high temperatures after carbon fiber baking, which could easily burn workers, thus improving safety during use. Attached Figure Description
[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 appearance structure of this utility model.
[0015] In the diagram: 1. Cooling box; 2. Side plate; 3. Support leg; 4. First motor; 5. First gear; 6. Rotating rod; 7. Second gear; 8. Fixing plate; 9. Rotating shaft; 10. Rotating plate; 11. Circular hole; 12. Fan; 13. Air damper baffle; 14. Connecting frame; 15. Rotating roller; 16. Connecting shaft; 17. Discharge port; 18. Oxidation box; 19. Feed port; 20. Oxygen valve; 21. Second motor; 22. Dehumidification box; 23. Third motor; 24. Drive roller. Detailed Implementation
[0016] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0017] Please see Figure 1-2 This utility model provides a technical solution: a carbon fiber processing pre-oxidation device, including a cooling box 1. A first motor 4 is installed inside the bottom surface of one side of the cooling box 1. The first motor 4 drives a rotating rod 6, which is rotatably connected between one side wall of the cooling box 1. The rotating rod 6 is connected to a pair of rotating mechanisms. A connecting frame 14 is fixedly connected between the inner walls of the cooling box 1. Several rotating rollers 15 are rotatably connected inside the connecting frame 14. A third motor 23 is installed on one side wall of the cooling box 1. The driving end of the third motor 23 is provided with a connecting shaft 16. The connecting shaft 16 is rotatably connected to the connecting frame 14 and is provided with an active roller 24. The active roller 24 is rotatably connected to the connecting frame 14. The rotating mechanism includes a first gear 5 installed on the rotating rod 6. The upper and lower walls of the cooling box 1 are provided with fixed plates 8. A rotating shaft 9 is rotatably installed in the fixed plate 8. A rotating plate 10 is fixedly connected to the rotating shaft 9. Both the rotating plate 10 and the fixed plate 8 are provided with several round holes 11. A second gear 7 is provided on the side wall of the rotating plate 10. The second gear 7 meshes with the first gear 5. A fan 12 is provided on the bottom surface of the cooling box 1.
[0018] This embodiment is further configured to include an oxidation chamber 18, which is connected to the cooling chamber 1. One end of the oxidation chamber 18 is provided with a feed inlet 19, and the end of the cooling chamber 1 away from the oxidation chamber 18 is provided with a discharge outlet 17. A second motor 21 is provided on the side wall of the oxidation chamber 18, and an oxygen valve 20 is provided on the upper wall of the oxidation chamber 18.
[0019] In this embodiment, the side wall of the feed inlet 19 is provided with a dehumidification box 22.
[0020] In this embodiment, the output end of the fan 12 is further configured to be equipped with a wind deflector 13.
[0021] In this embodiment, the side wall of the cooling box 1 is provided with a pair of side plates 2, and the lower end of each pair of side plates 2 is provided with a pair of support legs 3.
[0022] Its detailed connection method is a well-known technology in this field. The following mainly introduces the working principle and process, and the specific work is as follows.
[0023] Example: The carbon fiber of this device enters the oxidation box 18 through the feed inlet 19, passing through several rotating rollers. The last rotating roller is connected to the second motor 21 for driving. Oxygen is discharged through the oxygen valve 20 to control the oxygen amount. The dehumidification box 22 is used for dehumidification. After that, the carbon fiber winds through several rotating rollers 15. The rotation of the third motor 23 drives the rotation of the drive roller 24. The rotation of the drive roller 24 serves as the driving force for the movement of the carbon fiber in the cooling box 1. When cooling is required near the discharge port 17, the first motor 4 is started to drive the rotating rod 6 to rotate. The rotation of the rotating rod 6 drives the first gear 5 to rotate. The rotation of the first gear 5 drives the second gear 7 to rotate. The rotation of the second gear 7 drives the rotating plate 10 to rotate. When the rotating plate 10 aligns with several round holes 11 on the fixed plate 8, external airflow can enter the cooling box 1. The fan 12 is started to blow the airflow toward the carbon fiber. After being diverted by the wind deflector baffle 13, the airflow is evenly contacted with the carbon fiber.
[0024] It should be noted that in this paper, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.
Claims
1. A carbon fiber processing pre-oxidation apparatus, comprising a cooling box (1), characterized in that, A first motor (4) is installed inside one side bottom surface of the cooling box (1). The first motor (4) is driven by a rotating rod (6). The rotating rod (6) is rotatably connected between one side wall of the cooling box (1). The rotating rod (6) is connected to a pair of rotating mechanisms. A connecting frame (14) is fixedly connected between the inner walls of the cooling box (1). Several rotating rollers (15) are rotatably connected inside the connecting frame (14). A third motor (23) is installed on one side wall of the cooling box (1). The driving end of the third motor (23) is provided with a connecting shaft (16). The connecting shaft (16) is rotatably connected inside the connecting frame (14) and is provided with a main... The active roller (24) is rotatably connected in the connecting frame (14). The rotating mechanism includes a first gear (5) mounted on the rotating rod (6). The upper and lower walls of the cooling box (1) are provided with fixed plates (8). A rotating shaft (9) is rotatably installed in the fixed plate (8). A rotating plate (10) is fixedly connected to the rotating shaft (9). Both the rotating plate (10) and the fixed plate (8) are provided with several round holes (11). A second gear (7) is provided on the side wall of the rotating plate (10). The second gear (7) meshes with the first gear (5). A fan (12) is provided on the bottom surface of the cooling box (1).
2. The carbon fiber processing pre-oxidation device according to claim 1, characterized in that... It also includes an oxidation chamber (18), which is connected to the cooling chamber (1). One end of the oxidation chamber (18) is provided with a feed inlet (19), and the end of the cooling chamber (1) away from the oxidation chamber (18) is provided with a discharge outlet (17). The side wall of the oxidation chamber (18) is provided with a second motor (21), and the upper wall of the oxidation chamber (18) is provided with an oxygen valve (20).
3. The carbon fiber processing pre-oxidation device according to claim 2, characterized in that, The side wall of the feed inlet (19) is provided with a dehumidification box (22).
4. The carbon fiber processing pre-oxidation device according to claim 1, characterized in that, The output end of the fan (12) is equipped with a wind deflector (13).
5. The carbon fiber processing pre-oxidation device according to claim 1, characterized in that, The cooling box (1) has a pair of side plates (2) on its side wall, and each pair of side plates (2) has a pair of support legs (3) at its lower end.