Carbon fiber precursor breakage monitoring device
By designing a wire break monitoring device including photoelectric sensors in the carbon fiber raw wire production equipment, the wire breaking problem caused by high spinning speed in the steam drafting process is solved, rapid detection and reaction are achieved, and production efficiency and equipment flexibility are improved.
Patent Information
- Application Number
- CN202422625234.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-30
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-10-30
AI Technical Summary
In the production process of carbon fiber raw wire, the high spinning speed of the steam drafting process leads to broken wires at individual spinning positions, causing equipment tow wrapping and affecting normal spinning positions.
A carbon fiber raw wire break monitoring device is designed, including a front-end rocker arm and a rear-end rocker arm. The rear-end rocker arm is equipped with a photoelectric sensor to detect the wire breakage of the tow through the movement of the rocker arm light shielding plate, and quickly send the broken signal.
It realizes rapid detection and reaction of carbon fiber raw wire broken wire, simplifies operation, improves reaction speed, and has a simple structure and small footprint, which does not affect the layout of the original equipment and is highly flexible.
Smart Images
Figure CN223021277U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of carbon fiber production equipment, and particularly relates to a carbon fiber precursor broken wire monitoring device. Background Art
[0002] The steam drawing process has the largest drawing ratio in the whole carbon fiber precursor production process. Through this process, the orientation degree of the precursor itself can be changed, and its mechanical properties can be greatly improved. Therefore, this process is the process with the fastest spinning speed in the precursor wire, and the highest spinning speed can reach 400 meters per minute.
[0003] Due to the relatively fast spinning speed of the steam drawing process, in the actual production process, individual spinning positions suddenly break due to objective factors. If the workers do not handle it in time, it will cause the wire bundle to wind around the equipment drive roller and even affect other normal spinning positions. Therefore, appropriate measures need to be taken to avoid these problems. Summary of the Utility Model
[0004] The utility model mainly solves the technical problems existing in the above-mentioned prior art, and provides a carbon fiber precursor broken wire monitoring device.
[0005] The above technical problems of the utility model are mainly solved by the following technical solutions: A carbon fiber precursor broken wire monitoring device includes an integrally arranged front swing arm and a rear swing arm, and is characterized in that: a plurality of weight reduction holes are opened at the top of the front swing arm, the front swing arm is arranged in a U shape, a swivel joint is inserted at the end of the front swing arm, a fastening bolt is inserted at the top between the front swing arm and the swivel joint, a ceramic rod is inserted on one side of the swivel joint, a swing arm light shielding plate is arranged on one side of the rear swing arm, a light passing hole is opened in the swing arm light shielding plate, a photoelectric sensor is arranged on one side of the swing arm light shielding plate, and a photoelectric sensor emission port is opened on the photoelectric sensor and is arranged facing one side of the swing arm light shielding plate.
[0006] Preferably, a counterweight bolt guide groove is opened at the top of the rear swing arm, and a counterweight bolt is inserted in the counterweight bolt guide groove.
[0007] Preferably, an installation bracket is arranged at the bottom of the connection between the front swing arm and the rear swing arm, and a rotating shaft is horizontally inserted at the connection between the installation bracket and the front swing arm.
[0008] Preferably, a limit screw is horizontally inserted at the front end of the installation bracket, and the limit screw is located below the front end of the rotating shaft.
[0009] The beneficial effects of the utility model are:
[0010] By setting a photoelectric sensor at the rear side, when the filament bundle breaks, the rocker light-shielding plate of the rear rocker arm moves upward, thus blocking the photoelectric sensor, enabling rapid detection and response. The operation is simpler and the response speed is faster. At the same time, the device has a simple structure, occupies a small area, adopts a rear-mounted form, does not affect the layout of the original equipment on the production line, can adjust the number of devices according to requirements, has high flexibility, and the overall structure is light in weight. There is a counterweight nut with adjustable position, which will not exert excessive pressure on the filament bundle and affect the quality of the filament bundle. At the same time, a mechanical tension monitoring device is used to detect the tension of the filament bundle, which is not affected by environmental factors, has stable detection effect and high reliability. Description of the Drawings
[0011] Figure 1 is a three-dimensional structure schematic diagram of the present utility model;
[0012] Figure 2 is a right-side structure schematic diagram of the present utility model;
[0013] Figure 3 is a left-side structure schematic diagram of the present utility model;
[0014] Figure 4 is a top-view structure schematic diagram of the present utility model.
[0015] In the figure: 11, front rocker arm; 12, rear rocker arm; 13, counterweight bolt guide groove; 14, weight-reducing hole; 15, adapter; 16, fastening bolt; 17, ceramic rod; 18, counterweight bolt; 19, rocker light-shielding plate; 191, light-passing hole; 2, mounting bracket; 21, limit screw; 22, rotating shaft; 3, photoelectric sensor; 31, photoelectric sensor emission port. Detailed Embodiment
[0016] The following is a further specific description of the technical solution of the present utility model through examples and in combination with the drawings.
[0017] Example: A carbon fiber precursor broken wire monitoring device, as Figures 1-4As shown in the figure, it includes a front swing arm 11 and a rear swing arm 12 which are integrally arranged. A counterweight bolt guide groove 13 is opened at the top of the rear swing arm 12. A counterweight bolt 18 is inserted in the counterweight bolt guide groove 13. A plurality of weight-reducing holes 14 are opened at the top of the front swing arm 11. The front swing arm 11 is arranged in a U shape. A swivel joint 15 is inserted at the end of the front swing arm 11. A fastening bolt 16 is inserted at the top between the front swing arm 11 and the swivel joint 15. The swivel joint 15 is connected to the front swing arm 11 through the fastening bolt 16. A ceramic rod 17 is inserted on one side of the swivel joint 15. A swing arm light shield 19 is arranged on one side of the rear swing arm 12. A light passing hole 191 is opened in the swing arm light shield 19. The light passing hole 191 is located above the swing arm light shield 19. A photoelectric sensor 3 is arranged on one side of the swing arm light shield 19. A photoelectric sensor emission port 31 is opened on the photoelectric sensor 3, and the photoelectric sensor emission port 31 is arranged facing one side of the swing arm light shield 19.
[0018] An installation frame 2 is arranged at the bottom of the connection between the front swing arm 11 and the rear swing arm 12. A rotating shaft 22 is horizontally inserted at the connection between the installation frame 2 and the front swing arm 11. A limit screw 21 is horizontally inserted at the front end of the installation frame 2. After the front swing arm 11 loses the force of the yarn, the limit screw 21 plays a limiting role after falling, so that the swing arm light shield 19 of the rear swing arm 12 can block the photoelectric sensor emission port 31. The limit screw 21 is located below the front end of the rotating shaft 22.
[0019] The principle of the present utility model: The device is installed at the device to be detected through the installation frame 2, and the ceramic rod 17 at the bottom extends above the tow to be detected. At the same time, in cooperation with the counterweight bolt guide groove 13 opened at the top of the rear swing arm 12 and the counterweight bolt 18 slidably arranged on the surface, the pressure on the yarn can be adjusted according to the requirements of the corresponding yarn. After adjusting the position of the entire swing arm and the yarn, then the photoelectric sensor 3 is installed on one side of the corresponding swing arm light shield 19, so that the photoelectric sensor emission port 31 is arranged corresponding to one side of the light passing hole 191. When the yarn at the bottom is broken, at this time the entire front swing arm 11 loses the downward pressure, causing the rear end of the swing arm to tilt upward, resulting in the upward movement of the rear swing arm light shield 19, so that the photoelectric sensor emission port 31 is blocked. After the sensor detects an object, it sends a wire break signal to the middle end.
[0020] Finally, it should be pointed out that the above embodiments are only relatively representative examples of the present utility model. Obviously, the present utility model is not limited to the above embodiments and there can be many variations. Any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present utility model should be considered to fall within the protection scope of the present utility model.
Claims
1. A carbon fiber precursor broken wire monitoring device, comprising a front rocker arm (11) and a rear rocker arm (12) integrally arranged, characterized in that: A plurality of weight-reducing holes (14) are provided at the top of the front rocker arm (11); the front rocker arm (11) is arranged in a U shape; an adapter (15) is inserted at the end of the front rocker arm (11); a fastening bolt (16) is inserted at the top between the front rocker arm (11) and the adapter (15); a ceramic rod (17) is inserted at one side of the adapter (15); a rocker arm shading plate (19) is provided at one side of the rear rocker arm (12); a light-through hole (191) is provided in the rocker arm shading plate (19); a photoelectric sensor (3) is provided at one side of the rocker arm shading plate (19); a photoelectric sensor emitting port (31) is provided on the photoelectric sensor (3); and the photoelectric sensor emitting port (31) is arranged toward one side of the rocker arm shading plate (19).
2. A carbon fiber precursor broken wire monitoring device according to claim 1, characterized in that: A counterweight bolt guide groove (13) is provided at the top of the rear end rocker arm (12), and a counterweight bolt (18) is inserted into the counterweight bolt guide groove (13).
3. The device for monitoring broken carbon fiber precursor according to claim 1, characterized in that: A mounting frame (2) is provided at the bottom of the connection between the front end rocker arm (11) and the rear end rocker arm (12), and a rotating shaft (22) is transversely inserted at the connection between the mounting frame (2) and the front end rocker arm (11).
4. A carbon fiber precursor broken wire monitoring device according to claim 3, characterized in that: A limit screw (21) is inserted transversely into the front end of the mounting frame (2), and the limit screw (21) is located below the front end of the rotating shaft (22).