A carbon fiber tow guide

Abstract

The utility model discloses a kind of carbon fiber tow wire guiding device, the utility model includes fixed frame, the fixed frame both ends are provided with guide roller, the guide roller of fixed frame same end is vertically parallel arrangement, the lateral wall of fixed frame both ends is vertically slidably connected with moving block, fixed frame lateral wall is provided with guide rod, guide rod outer wall is equipped with spring one located above moving block, fixed frame lateral wall is rotatably connected with threaded rod, threaded rod outer wall is threadedly cooperated with moving plate, moving plate one end and guide rod outer wall sliding fit, spring one both ends are connected with moving plate and moving block respectively;The utility model can change the extrusion force of spring one to moving block by adjusting the extrusion degree of moving plate to spring one by being provided with threaded rod, moving plate and guide rod, and further adjust the extrusion force of guide roller to tow, can make spring one compression after the extrusion force of guide roller to tow is reduced due to fatigue elastic force of spring one, ensure that the extrusion force of guide roller to tow is consistent.

Description

Technical Field

[0001] This utility model relates to the field of carbon fiber tow processing technology, and in particular to a carbon fiber tow guiding device. Background Technology

[0002] Carbon fiber is an inorganic polymer fiber with a carbon content of over 92%. It is widely used in aerospace, high-speed rail transportation, sporting goods, chemical machinery, textile machinery and other fields. In the production process of carbon fiber, it is wound by a winding device. Before entering the winding device, the carbon fiber bundle is guided by a guide device.

[0003] A search revealed a Chinese patent publication number CN222647320U, which discloses a guiding device for a carbon fiber take-up machine. The device includes a fixed plate, an upper half-roller, and a lower half-roller. A support plate is fixedly connected to one side of the fixed plate, and a spring located outside the support plate is fixedly connected to the inner side of the fixed plate. A limit block is fixedly connected to the end of the spring away from the fixed plate. The limit block has a first limit hole inside, and a rubber sheet is fixedly connected to the bottom end of the limit block. A rotating shaft is rotatably connected to the inner side of the first limit hole. A limit groove is provided on the outer side of the support plate, and a first fixing rod is fixedly connected to the outer side of the rotating shaft. Limit plates are fixedly connected to the edges of one end of the upper and lower half-rollers, and a fixing hole is provided at one end of the upper and lower half-rollers. A fixing component is engaged inside the fixing hole. This patent, by setting up the upper half-roller, lower half-roller, and limit plate structures, eliminates the need to disassemble screws when replacing the rollers; simply pulling out the fixing component is sufficient.

[0004] However, the spring keeps the two rollers in contact at all times to ensure the stability of the wire guide. After long-term use, the spring will fatigue, resulting in a decrease in extrusion pressure. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a carbon fiber bundle guiding device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A carbon fiber tow guiding device includes a fixed frame, with guide rollers at both ends of the fixed frame. The guide rollers at the same end of the fixed frame are arranged vertically in parallel. Movable blocks are vertically slidably connected to the side walls at both ends of the fixed frame. Both ends of one guide roller are rotatably connected to the movable blocks. A guide rod is provided on the side wall of the fixed frame. The movable blocks are slidably engaged with the outer wall of the guide rod. A spring is sleeved on the outer wall of the guide rod above the movable blocks. A threaded rod is rotatably connected to the side wall of the fixed frame. A movable plate is threadedly engaged with the outer wall of the threaded rod. One end of the movable plate is slidably engaged with the outer wall of the guide rod. The two ends of the spring are respectively connected to the movable plate and the movable block.

[0008] As a further embodiment of this utility model: a driven bevel gear is fixedly connected to the bottom end of the threaded rod, and a rotating shaft is rotatably connected to the side wall of the fixing frame, with the axis of the rotating shaft forming a 90-degree angle with the axis of the threaded rod.

[0009] As a further embodiment of this utility model: a driving bevel gear is fixed to the outer wall of the rotating shaft, and the driving bevel gear meshes with the driven bevel gear. A handwheel is connected to one end of the rotating shaft.

[0010] As a further improvement of this utility model: threaded holes are provided at both ends of the guide rod, and multiple fixing screws are threadedly connected to the outer wall of the fixing frame, with one end of the fixing screws threadedly connected to the threaded holes.

[0011] As a further embodiment of this utility model: the handwheel and the rotating shaft are connected by a connecting component, which includes a sliding block and a guide groove. The sliding block is fixedly connected to one side of the handwheel and is coaxial with the handwheel.

[0012] As a further embodiment of this utility model: the guide groove is formed on the outer wall of one end of the rotating shaft, the sliding block is slidably engaged with the guide groove, and the sliding block has interconnected limiting grooves and cavities inside, with the limiting grooves being far away from the rotating shaft.

[0013] As a further improvement of this utility model: a spline is fixedly connected to one end of the rotating shaft, and the spline is in a limiting sliding fit with the limiting groove.

[0014] As a further improvement of this utility model: a second spring is fixedly connected to the side wall of the spline, and the other end of the second spring is connected to the inner wall of the limiting groove.

[0015] Compared with the prior art, the present invention provides a carbon fiber tow guide device, which has the following advantages:

[0016] 1. This utility model, by providing a threaded rod, a movable plate and a guide rod, can change the squeezing force of the spring pair on the movable block by adjusting the squeezing degree of the movable plate on the spring, thereby adjusting the squeezing force of the guide roller on the filament bundle. It can compress the spring when the spring's elasticity decreases due to fatigue and the squeezing force of the guide roller on the filament bundle decreases, thus ensuring that the squeezing force of the guide roller on the filament bundle is consistent.

[0017] 2. In this utility model, by providing a fixing screw, the spring can be removed by unscrewing the fixing screw when replacing the spring, which facilitates the replacement of the spring.

[0018] 3. This utility model, by providing a connecting component, ensures that after the handwheel is released, the spline disengages from the limiting groove, preventing the handwheel from driving the rotating shaft to rotate. This avoids accidental contact with the handwheel during use, which could cause the rotating shaft to rotate and change the compressive force.

[0019] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model has a simple structure and is easy to operate. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a carbon fiber bundle guiding device proposed in this utility model.

[0021] Figure 2 This is a partial structural schematic diagram of a carbon fiber bundle guiding device proposed in this utility model;

[0022] Figure 3 This is a schematic diagram of the connection structure between the guide rod and the fixing frame of the carbon fiber filament guiding device proposed in this utility model;

[0023] Figure 4 This is a schematic diagram of the structure of a carbon fiber bundle guide device connection assembly proposed in this utility model.

[0024] In the diagram: 1. Fixed frame; 2. Guide roller; 3. Moving block; 4. Spring 1; 5. Threaded rod; 6. Moving plate; 7. Driven bevel gear; 8. Rotating shaft; 9. Driving bevel gear; 10. Handwheel; 11. Guide rod; 12. Fixed screw; 13. Sliding block; 14. Guide groove; 15. Spline; 16. Cavity; 17. Limiting groove; 18. Spring 2. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] Example 1

[0028] A carbon fiber tow guide device, such as Figures 1 to 3 As shown, the device includes a fixed frame 1, with guide rollers 2 at both ends. The guide rollers 2 at the same end of the fixed frame 1 are arranged vertically in parallel. Moving blocks 3 are vertically slidably connected to the side walls at both ends of the fixed frame 1. Both ends of one guide roller 2 are rotatably connected to the moving blocks 3. A guide rod 11 is provided on the side wall of the fixed frame 1. The moving blocks 3 are slidably engaged with the outer wall of the guide rod 11. A spring 4 is sleeved on the outer wall of the guide rod 11, located above the moving blocks 3. A threaded rod 5 is rotatably connected to the side wall of the fixed frame 1. A moving plate 6 is threadedly engaged with the outer wall of the threaded rod 5. One end of the moving plate 6 is slidably engaged with the outer wall of the guide rod 11. The two ends of the spring 4 are respectively connected to the moving plate 6 and the moving blocks 3. A driven bevel gear 7 is fixedly connected to the bottom end of the threaded rod 5. A rotating shaft 8 is rotatably connected to the side wall of the fixed frame 1. The axis of the rotating shaft 8 forms a 90-degree angle with the axis of the threaded rod 5. A driving bevel gear 9 is fixed to the outer wall of the rotating shaft 8. The driving bevel gear 9 and the driven bevel gear 7 are meshed. A handwheel 10 is connected to one end of the rotating shaft 8.

[0029] Both ends of the guide rod 11 are provided with threaded holes, and multiple fixing screws 12 are threadedly connected to the outer wall of the fixing frame 1. One end of the fixing screw 12 is threadedly connected to the threaded hole.

[0030] During use, the filament passes between two guide rollers 2, which guide the filament. Spring 4 keeps the guide roller 2 applying a certain pressure to the filament. To adjust the pressure of the guide roller 2 on the filament, turn the handwheel 10 to rotate the rotating shaft 8. Through the transmission of the driving bevel gear 9 and the driven bevel gear 7, the threaded rod 5 rotates. The threaded rod 5 moves the moving plate 6. By adjusting the pressure of the moving plate 6 on the spring 4, the pressure of the spring 4 on the moving block 3 can be changed, thereby adjusting the pressure of the guide roller 2 on the filament. When replacing the spring 4, the fixing screw 12 can be removed using external tools to release the fixation of the guide rod 11. The guide rod 11 can be pulled out, the spring 4 removed, and the new spring 4 inserted. The guide rod 11 is then fixed by the fixing screw 12.

[0031] By setting up a threaded rod 5, a movable plate 6 and a guide rod 11, the squeezing force of spring-4 on movable block 3 can be changed by adjusting the squeezing degree of spring-4 by movable plate 6, thereby adjusting the squeezing force of guide roller 2 on the filament bundle. After spring-4 loses elasticity due to fatigue and the squeezing force of guide roller 2 on the filament bundle decreases, spring-4 can be compressed to ensure that the squeezing force of guide roller 2 on filament bundle is consistent.

[0032] With the fixing screw 12 provided, the spring 4 can be removed by unscrewing the fixing screw 12 when replacing the spring 4, making it easy to replace the spring 4.

[0033] Example 2

[0034] A carbon fiber tow guiding device, this embodiment is based on embodiment 1, with the following improvements, such as... Figure 4 As shown, the handwheel 10 and the rotating shaft 8 are connected by a connecting assembly, which includes a sliding block 13 and a guide groove 14. The sliding block 13 is fixedly connected to one side of the handwheel 10 and is coaxial with the handwheel 10. The guide groove 14 is opened on the outer wall of one end of the rotating shaft 8. The sliding block 13 and the guide groove 14 are slidably engaged. The sliding block 13 has a limiting groove 17 and a cavity 16 that are interconnected inside. The limiting groove 17 is away from the rotating shaft 8. A spline 15 is fixedly connected to one end of the rotating shaft 8. The spline 15 and the limiting groove 17 are in a limiting sliding engagement. A second spring 18 is fixedly connected to the side wall of the spline 15. The other end of the second spring 18 is connected to the inner wall of the limiting groove 17.

[0035] When adjusting the extrusion pressure, push the handwheel 10 toward the rotating shaft 8. The sliding block 13 slides along the guide groove 14, and the spline 15 enters the limiting groove 17 from the cavity 16. The second spring 18 is compressed and deformed. At this time, rotating the handwheel 10 can drive the spline 15 to rotate through the limiting groove 17. After the adjustment is completed, release the handwheel 10. The second spring 18 pushes the sliding block 13 away from the rotating shaft 8, and the spline 15 disengages from the limiting groove 17. The handwheel 10 can no longer drive the rotating shaft 8 to rotate, thus avoiding accidental contact with the handwheel 10 during use, which would cause the rotating shaft 8 to rotate and the extrusion pressure to change.

[0036] By providing a connecting component, after the handwheel 10 is released, the spline 15 disengages from the limiting groove 17, and the handwheel 10 cannot drive the rotating shaft 8 to rotate. This prevents accidental contact with the handwheel 10 during use, which could cause the rotating shaft 8 to rotate and change the compressive force.

[0037] Working principle: During use, the filament passes between two guide rollers 2, which guide the filament. Spring 4 maintains a certain compressive force on the filament by the guide rollers 2. When adjusting the compressive force of the guide rollers 2 on the filament, the handwheel 10 is pushed towards the rotating shaft 8. The sliding block 13 slides along the guide groove 14, and the spline 15 enters the limiting groove 17 from the cavity 16. Spring 18 is compressed and deformed. At this time, rotating the handwheel 10 can drive the spline 15 to rotate through the limiting groove 17. The rotating shaft 8 rotates with the spline 15, and the threaded rod 5 is driven to rotate through the transmission of the driving bevel gear 9 and the driven bevel gear 7. The threaded rod 5 drives the sliding block 8 to rotate. The moving plate 6 moves, and by adjusting the degree of compression of spring 4 by the moving plate 6, the compression force of spring 4 on the moving block 3 can be changed, thereby adjusting the compression force of guide roller 2 on the filament bundle. When the handwheel 10 is released, spring 2 18 pushes the sliding block 13 away from the rotating shaft 8, spline 15 disengages from the limiting groove 17, and handwheel 10 can no longer drive the rotating shaft 8 to rotate. When replacing spring 4, the fixing screw 12 can be removed with external tools to release the fixation of guide rod 11, guide rod 11 can be pulled out, spring 4 can be removed, and then the new spring 4 can be inserted. The guide rod 11 can be inserted and fixed by fixing screw 12.

[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A carbon fiber tow guiding device, comprising a fixing frame (1), characterized in that, The fixed frame (1) is provided with guide rollers (2) at both ends. The guide rollers (2) located at the same end of the fixed frame (1) are arranged vertically in parallel. The side walls at both ends of the fixed frame (1) are vertically slidably connected with moving blocks (3). Both ends of one guide roller (2) are rotatably connected to the moving block (3). The side wall of the fixed frame (1) is provided with a guide rod (11). The moving block (3) is slidably engaged with the outer wall of the guide rod (11). The outer wall of the guide rod (11) is fitted with a spring (4) located above the moving block (3). The side wall of the fixed frame (1) is rotatably connected with a threaded rod (5). The outer wall of the threaded rod (5) is threadedly engaged with a moving plate (6). One end of the moving plate (6) is slidably engaged with the outer wall of the guide rod (11). The two ends of the spring (4) are respectively connected to the moving plate (6) and the moving block (3).

2. The carbon fiber tow guiding device according to claim 1, characterized in that, The bottom end of the threaded rod (5) is fixedly connected to a driven bevel gear (7), and the side wall of the fixed frame (1) is rotatably connected to a rotating shaft (8). The axis of the rotating shaft (8) is at a 90-degree angle to the axis of the threaded rod (5).

3. The carbon fiber tow guiding device according to claim 2, characterized in that, The outer wall of the rotating shaft (8) is fixed with a driving bevel gear (9), which meshes with the driven bevel gear (7). A handwheel (10) is connected to one end of the rotating shaft (8).

4. The carbon fiber tow guiding device according to claim 1, characterized in that, Both ends of the guide rod (11) are provided with threaded holes, and the outer wall of the fixing frame (1) is threaded with multiple fixing screws (12), one end of the fixing screw (12) is threadedly connected to the threaded hole.

5. A carbon fiber tow guiding device according to claim 3, characterized in that, The handwheel (10) is connected to the rotating shaft (8) by a connecting component, which includes a sliding block (13) and a guide groove (14). The sliding block (13) is fixedly connected to one side of the handwheel (10) and the sliding block (13) is coaxial with the handwheel (10).

6. A carbon fiber tow guiding device according to claim 5, characterized in that, The guide groove (14) is opened on the outer wall of one end of the rotating shaft (8). The sliding block (13) is slidably engaged with the guide groove (14). The sliding block (13) has interconnected limiting groove (17) and cavity (16) inside. The limiting groove (17) is far away from the rotating shaft (8).

7. A carbon fiber tow guiding device according to claim 6, characterized in that, One end of the rotating shaft (8) is fixedly connected to a spline (15), and the spline (15) is in a limiting sliding fit with the limiting groove (17).

8. A carbon fiber tow guiding device according to claim 7, characterized in that, A second spring (18) is fixedly connected to the side wall of the spline (15), and the other end of the second spring (18) is connected to the inner wall of the limiting groove (17).

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