Composite pipe filament tow reinforcement layer winding device

Abstract

The application relates to a composite pipeline fiber tows reinforced layer winding device which comprises a rack, a rotating disc and a fiber shaft support, the rotating disc is provided with a fixing block and a convex block, the rotating disc is provided with a protective cover, the protective cover comprises a cover body one, a cover body two, an adjusting block and an elastic piece one, the cover body one, the cover body two, the adjusting block and the rotating disc are spliced to form a containing groove. The protective cover formed by the cover body one, the cover body two, the adjusting block and the rotating disc is arranged, an independent closed containing space is formed for each fiber shaft support, the fiber shaft support and the fiber tows carried thereby are effectively isolated from the external production environment, the dust, water vapor and other pollutants in the environment are prevented from adhering to or invading the surface of the fiber tows, the cleanliness of the fiber tows is ensured, the interlayer bonding strength and the overall mechanical property of the final composite pipeline product can be improved, the fiber shaft support can be quickly and safely replaced under the closed protection, and the equipment maintenance efficiency and the operation continuity are greatly improved.

Description

Technical Field

[0001] This application relates to the field of pipe manufacturing equipment, and in particular to a composite pipeline fiber bundle reinforcement layer winding device. Background Technology

[0002] In fields such as oil and gas transportation, hydraulic transmission of engineering machinery, and drone operation support, in order to improve the tensile strength, fatigue resistance and environmental corrosion resistance of pipelines, it is usually necessary to wrap fiber bundles around the outside of the pipeline body to form a reinforcing layer. This reinforcing layer can significantly optimize the overall structural stability of the pipeline by taking advantage of the high specific strength characteristics of the fiber bundles.

[0003] For example, the invention patent with patent publication number CN107415210A discloses a composite pipeline reinforcement layer winding device, including a core tube laying mechanism, at least four sets of multi-disc winding mechanisms coaxially arranged and driven by a power mechanism, a pipeline traction mechanism, a tube taking-up mechanism, and a control mechanism. The multi-disc winding mechanism includes a frame and a turntable with its shaft fixed on the frame. The core tube forward side of the turntable is provided with a fiber or steel wire aggregation protrusion in the middle, which is the core tube channel. Several fiber shaft frames are provided on the disc surface on both sides or one side.

[0004] With the above-mentioned composite pipeline reinforcement layer winding device, the fiber shaft frame is directly exposed to the working environment outside the equipment. Dust, water vapor or other pollutants that are common in the production environment can easily adhere to the surface of the fiber shaft frame and the fiber bundles it carries. The contaminated material will directly affect the interlayer bonding strength of the final product, which needs to be improved. Summary of the Invention

[0005] To address the problem that dust, moisture, or other pollutants commonly found in the working environment easily adhere to the fiber shaft frame and the surface of the fiber bundles it carries, directly affecting the interlayer bonding strength of the final product, this application provides a composite pipeline fiber bundle reinforcement layer winding device.

[0006] This application provides a composite pipeline fiber bundle reinforcement layer winding device, which adopts the following technical solution:

[0007] A composite pipeline fiber bundle reinforcement layer winding device includes a frame, a turntable rotatably connected to the frame, and a plurality of fiber shafts mounted on the turntable. The rotation axis of the turntable is horizontally arranged. The turntable has a through hole for the pipe body to pass through. A plurality of fixing blocks and protrusions are arranged circumferentially around the outer periphery of the through hole. The fixing blocks have through holes for the fiber bundle to pass through. The protrusions and fixing blocks correspond one-to-one, and the protrusions are located on the side of the fixing blocks away from the through hole. The protrusions have positioning grooves. The fiber shafts are provided with positioning blocks, and the positioning grooves are for the positioning blocks to be engaged.

[0008] The turntable is provided with several protective covers, each corresponding to a protrusion. Each protective cover includes a cover body 1, a cover body 2, an adjusting block, and an elastic element 1. The cover body 1 is located on the turntable and has perforations 3 for threading fiber bundles. The cover body 1 also has an installation groove. The cover body 2 is located within the installation groove. A limiting block is provided on the inner wall of the installation groove. The limiting block is located on the side of the cover body 2 away from the turntable. The cover body 2 has a limiting groove for the limiting block to engage. The adjusting block is located on the side of the cover body 2 closer to the turntable and is slidably connected to the cover body. The sliding direction of the adjusting block is parallel to the rotation axis of the turntable. The elastic element 1 is located on the turntable and abuts against the adjusting block, causing the adjusting block to tend to move closer to the cover body 2.

[0009] The cover body one, cover body two, adjusting block and turntable are spliced ​​together to form a receiving groove, and the fiber shaft frame is located in the receiving groove. When the adjusting block presses the cover body two against the cover body one, the adjusting block abuts against the side of the fiber shaft frame away from the positioning block.

[0010] By adopting the above technical solution, and by setting up a protective cover formed by splicing together cover body one, cover body two, adjusting block and turntable, an independent sealed containment space is constructed for each fiber shaft frame. This structure effectively isolates the fiber shaft frame and the fiber bundle it carries from the external production environment, reducing the adhesion or intrusion of dust, water vapor and other pollutants in the environment onto or into the surface of the fiber bundle, ensuring the cleanliness of the fiber bundle, thereby improving the interlayer bonding strength and overall mechanical properties of the final composite pipeline product.

[0011] When the fiber bundles on a single fiber shaft are exhausted or the type of fiber bundle needs to be changed, the operator can move the second cover closer to the turntable with one hand, causing it to press the adjusting block until the limiting block disengages from the limiting groove. At this point, the adjusting block disengages from the fiber shaft. The second cover is then removed from the mounting groove, and the adjusting block is pressed down to keep the adjusting block and fiber shaft detached. Next, the fiber shaft is moved away from the protrusion, causing the positioning block to disengage from the positioning groove. The fiber shaft can then be removed for replenishment or replacement of the fiber bundles. When reinstalling, the above steps are reversed. Under the automatic reset action of the elastic element, the protective cover can quickly return to a sealed and locked state. The entire process is quick and tool-free, enabling rapid and safe replacement of the fiber shaft under sealed protection, greatly improving equipment maintenance efficiency and operational continuity.

[0012] Optionally, the fiber shaft frame includes a mounting base, a shaft frame shaft, an adjusting ring, a movable ring, and several protruding posts. The positioning block is disposed on the mounting base. The shaft frame shaft is rotatably connected to the mounting base, and the rotation axis of the shaft frame shaft is parallel to the rotation axis of the turntable. The adjusting ring is located on the side of the shaft frame shaft near the turntable and is threadedly connected to the mounting base. The movable ring is located on the side of the adjusting ring near the shaft frame shaft and is slidably connected to the mounting base. The movable ring slides closer to or away from the shaft frame shaft. The protruding posts are disposed on the movable ring. Several protruding posts are located on the side of the movable ring near the shaft frame shaft and are circumferentially distributed around the outer periphery of the rotation axis of the shaft frame shaft. Each protruding post is provided with an elastic layer, and the protruding post abuts against the shaft frame shaft through the elastic layer.

[0013] By adopting the above technical solution, the axial displacement of the movable ring can be controlled by rotating the adjusting ring, thereby adjusting the radial clamping force of each protrusion on the shaft bracket through the elastic layer. This clamping force forms a controllable sliding friction resistance on the surface of the shaft bracket, which is converted into a braking torque on the shaft bracket. The operator can set the initial braking torque by rotating the adjusting ring according to the process tension requirements of different wires (fiber bundles), so as to realize convenient adjustment of the braking torque. At the same time, the elastic layer on the protrusion makes the pressure distribution uniform and adaptive. It can not only compensate for the assembly tolerance of parts and avoid local wear, rotation jamming or braking torque fluctuation of the shaft bracket caused by single-point stress concentration, thus ensuring the consistency and reliability of braking effect in long-term operation, but also absorb the impact through elastic deformation during operation overload, providing buffer protection for the system.

[0014] Optionally, a marker block is slidably connected to the second cover. The marker block slides closer to or away from the fiber shaft frame. The marker block is provided with an abutment block located on the side of the marker block closer to the fiber shaft frame. The second cover is provided with an elastic element two, which abuts against the abutment block, causing the marker block to tend to move closer to the fiber shaft frame. The marker block includes several color blocks distributed along its sliding direction. The colors of the several color blocks are different. The abutment block is located on the color block closest to the fiber shaft frame.

[0015] By adopting the above technical solution, the marking block, under the action of the elastic element two, always maintains contact with the outer circle of the fiber bundle roll on the fiber shaft frame. As the fiber bundle is consumed, the roll diameter decreases, and the marking block gradually moves closer to the fiber shaft frame under the elastic action of the elastic element two. By observing the color of the color block exposed on the cover two, the operator can instantly judge the real-time remaining amount of the fiber bundle on the fiber shaft frame without opening the protective cover or stopping the machine, thus realizing visualized wire remaining monitoring and early warning.

[0016] Optionally, the abutment block has bristles on the side near the fiber shaft frame.

[0017] By adopting the above technical solution, while the marking block slides with the change of roll diameter to realize the monitoring of the remaining amount, the bristles on the contact block always keep in contact with the surface of the moving fiber bundle, which can remove the lint, dust and electrostatic adsorbents attached to the surface of the fiber bundle in real time during the unwinding process, reducing the risk of pollutants getting entangled on the tube body.

[0018] Optionally, two rotating shafts are rotatably connected to the cover body, the two rotating shafts are located inside the perforation three, and the rotation axis of the rotating shafts is parallel to the rotation axis of the turntable. The cross-sectional area of ​​the rotating shafts cut radially gradually increases towards the turntable. The two rotating shafts and the inner wall of the perforation three are spliced ​​together to form a thread passage for threading fiber bundles.

[0019] By adopting the above technical solution, the two rotating shafts form a V-shaped tapering channel. When the fiber bundle passes through, the rotating shafts convert sliding friction into rolling friction, reducing wear on the fiber bundle surface. The rolling constraint formed by the two rotating shafts can suppress the lateral sway and longitudinal vibration of the wire. The radial compression of the wire on the rotating shaft can form passive damping, absorbing and attenuating tension fluctuations from upstream, making the output tension more stable, ensuring that each fiber bundle can be laid and wound with constant stress, reducing the problem of local fiber accumulation or sparseness caused by tension fluctuations, thereby making the fiber bundle more evenly distributed on the tube, which is conducive to improving the overall performance of the product.

[0020] Optionally, an elastic strip is provided on the outer wall of the rotating shaft.

[0021] By adopting the above technical solution, the fiber bundle is a long, essentially untwisted chemical fiber bundle with loose bonding between the individual filaments. It mainly relies on a bundling agent and slight winding to maintain its shape, making it prone to relative slippage and vibration of the individual filaments. It exhibits a significant tendency for internal resonance and adhesion. By setting an elastic strip, when the wire passes through the shaft, the elastic strip generates periodic flexible compression, applying a slight radial vibration to the wire. This breaks up the synchronous vibration that is forming inside the fiber bundle and hinders the establishment of a stable bonding interface between the individual filaments. This actively suppresses the tension fluctuations caused by resonance and the layup defects caused by adhesion, ensuring that the fiber bundle always maintains a loose and uniform process state, which helps to achieve high-quality winding in the subsequent process.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. By setting up a protective cover formed by splicing together cover body one, cover body two, adjusting block and turntable, an independent sealed containment space is constructed for each fiber shaft frame, which effectively isolates the fiber shaft frame and the fiber bundle it carries from the external production environment, reduces the adhesion or intrusion of dust, water vapor and other pollutants in the environment to the surface of the fiber bundle, ensures the cleanliness of the fiber bundle, thereby improving the interlayer bonding strength and overall mechanical properties of the final composite pipeline product, and also enables the rapid and safe replacement of the fiber shaft frame under sealed protection, which greatly improves the equipment maintenance efficiency and operation continuity;

[0024] 2. Operators can set the initial braking torque by rotating the adjusting ring according to the process tension requirements of different wires, thus achieving convenient adjustment of the braking torque;

[0025] 3. By observing the color of the exposed color block on the second cover, the operator can instantly determine the real-time remaining amount of the filament bundle on the fiber shaft frame without opening the protective cover or stopping the machine, thus realizing visualized monitoring and early warning of the remaining wire amount. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of an embodiment of this application.

[0027] Figure 2 This is a cross-sectional view of an embodiment of this application.

[0028] Figure 3 This is a partial structural diagram of an embodiment of this application, mainly showing the structure of the positioning groove and the receiving groove.

[0029] Figure 4 This is a partial structural diagram of an embodiment of this application, mainly showing the structure of the positioning block.

[0030] Figure 5 for Figure 2 The enlarged view of section A mainly shows the structure of the color block, the abutment block, the elastic component 2, and the bristles.

[0031] Figure 6 This is a partial exploded structural diagram of an embodiment of this application, mainly showing the structure of the wire passage and the limiting groove.

[0032] Figure 7 for Figure 2 The enlarged view of section B mainly shows the structure of the elastic strip.

[0033] Figure 8 for Figure 2 The enlarged view of section C mainly shows the structure of elastic element one.

[0034] Explanation of reference numerals in the attached drawings: 1. Frame; 2. Turntable; 21. Perforation 1; 22. Slide groove; 3. Fiber shaft bracket; 31. Mounting base; 311. Ring groove; 32. Shaft bracket shaft; 33. Adjusting ring; 34. Moving ring; 35. Protrusion; 4. Fixing block; 41. Perforation 2; 5. Protrusion; 51. Positioning groove; 6. Positioning block; 7. Elastic layer; 8. Protective cover; 81. Cover body 1; 811. Mounting groove; 812. Perforation 3; 82. Cover body 2; 821. Limiting groove; 83. Adjusting block; 84. Elastic element 1; 9. Rotating shaft; 10. Elastic strip; 11. Wire passage; 12. Limiting block; 13. Receiving groove; 14. Identifying block; 141. Color block; 15. Abutment block; 16. Elastic element 2; 17. Brush bristles. Detailed Implementation

[0035] The following is in conjunction with the appendix Figures 1-8 This application will be described in further detail.

[0036] This application discloses a composite pipeline fiber bundle reinforcement layer winding device. (Refer to...) Figures 1-8 The composite pipeline fiber bundle reinforcement layer winding device includes a frame 1, a turntable 2 and several fiber shaft frames 3. The turntable 2 is rotatably connected to the frame 1, and the rotation axis of the turntable 2 is set horizontally. A through hole 21 for the pipe body is opened on the outer wall of the turntable 2, and the through hole 21 horizontally penetrates the turntable 2.

[0037] In practical use, a drive mechanism is configured between the frame 1 and the turntable 2. This drive mechanism is used to drive the turntable 2 to rotate relative to the frame 1. The drive mechanism can be a conventional rotation drive device in the art, such as a motor, gear transmission assembly, belt transmission assembly, etc.

[0038] Reference Figures 1-8 A number of fixing blocks 4 and protrusions 5 are fixed on the turntable 2. The fixing blocks 4 are located on the same side of the turntable 2 and are evenly spaced around the outer periphery of the first perforation 21. The outer wall of the fixing block 4 is provided with a second perforation 41 for the fiber bundle to pass through. The second perforation 41 passes through the fixing block 4 radially along the first perforation 21. The protrusions 5 are located on the side of the turntable 2 close to the fixing blocks 4 and a number of protrusions 5 are evenly spaced around the outer periphery of the first perforation 21. The number and position of the protrusions 5 correspond one-to-one with the number and position of the fixing blocks 4. Each protrusion 5 is located on the side of the corresponding fixing block 4 away from the first perforation 21. The outer wall of the protrusion 5 is provided with a positioning groove 51, which is located on the side of the protrusion 5 away from the first perforation 21.

[0039] Reference Figures 1-8The number and position of the fiber shaft brackets 3 correspond one-to-one with the number and position of the protrusions 5. Each fiber shaft bracket 3 includes a mounting base 31, a shaft bracket 32, an adjusting ring 33, a movable ring 34, and several protrusions 35. A positioning block 6 is fixed on the mounting base 31, and a positioning groove 51 is provided for the positioning block 6 to be inserted. An annular groove 311 is provided on the outer wall of the mounting base 31. The annular groove 311 is arranged around the outer periphery of the mounting base 31. The shaft bracket 32 ​​is located on the side of the mounting base 31 away from the turntable 2 and is rotatably connected to the mounting base 31. The rotation axis of the shaft bracket 32 ​​is parallel to the rotation axis of the turntable 2.

[0040] Reference Figures 1-8 An adjusting ring 33 is located on the side of the shaft bracket 32 ​​near the turntable 2 and within the annular groove 311. The adjusting ring 33 is sleeved on the outside of the mounting base 31 and is threadedly connected to the mounting base 31. A movable ring 34 is located on the side of the adjusting ring 33 near the shaft bracket 32 ​​and within the annular groove 311. The movable ring 34 is sleeved on the outside of the mounting base 31 and slidably connected to the mounting base 31. The movable ring 34 slides closer to or away from the shaft bracket 32. Several protrusions 35 are located on the side of the movable ring 34 near the shaft bracket 32 ​​and are evenly spaced circumferentially around the outer periphery of the shaft bracket 32's rotation axis. The protrusions 35 are fixedly connected to the movable ring 34 and extend out of the mounting base 31 in a direction away from the movable ring 34. Each protrusion 35 has an elastic layer 7 fixed on its end face away from the movable ring 34. The protrusion 35 abuts against the shaft bracket 32 ​​through the elastic layer 7. In this embodiment, the elastic layer 7 is made of rubber.

[0041] In practical use, by rotating the adjusting ring 33, the axial displacement of the movable ring 34 can be controlled, thereby adjusting the radial clamping force of each protrusion 35 on the shaft 32 through the elastic layer 7. This clamping force forms a controllable sliding friction resistance on the surface of the shaft 32, which is converted into a braking torque on the shaft 32, thus realizing convenient adjustment of the braking torque.

[0042] Reference Figures 1-8Several protective covers 8 are installed on the turntable 2. The protective covers 8 are located on the side of the turntable 2 near the protrusion 5. The number and position of the protective covers 8 correspond one-to-one with the number and position of the protrusion 5. Each protective cover 8 includes a cover body 1 81, a cover body 2 82, an adjusting block 83, and an elastic element 1 84. The cover body 1 81 is fixed on the turntable 2. The cover body 1 81 has a perforation 3 812 for threading fiber bundles. The perforation 3 812 is located on the side of the cover body 1 81 near the perforation 1 21. Two rotating shafts 9 are rotatably connected to the cover body 1 81. The two rotating shafts 9 are located on the side of the turntable 2 81. The perforations 812 are spaced apart, and the rotation axis of the rotating shaft 9 is parallel to the rotation axis of the turntable 2. The cross-sectional area of ​​the rotating shaft 9 cut radially gradually increases towards the turntable 2. An elastic strip 10 is fixed on the outer wall of each rotating shaft 9. The elastic strip 10 is set along the rotation axis of the rotating shaft 9 and fits against the outer wall of the rotating shaft 9. The two rotating shafts 9 and the inner wall of the perforations 812 are spliced ​​to form a thread passage 11 for threading the fiber bundle. The thread passage 11 is located between the two rotating shafts 9. In this embodiment, the elastic strip 10 is made of rubber.

[0043] Reference Figures 1-8 A sliding groove 22 is provided on the outer wall of the turntable 2 near the first cover 81. The number and position of the sliding grooves 22 correspond one-to-one with the number and position of the protective covers 8. A mounting groove 811 is provided on the first cover 81, located on the side of the first cover 81 away from the first perforation 21. A limiting block 12 is fixed on the inner wall of the mounting groove 811 away from the turntable 2. The second cover 82 is located in the mounting groove 811. The limiting block 12 is located on the side of the second cover 82 away from the turntable 2. A limiting device is provided on the outer wall of the second cover 82 for the limiting block 12 to be inserted. The adjusting block 83 is located on the side of the cover 2 82 near the turntable 2 and is slidably connected to the corresponding slide groove 22. The sliding direction of the adjusting block 83 is parallel to the rotation axis of the turntable 2. The elastic element 84 is located in the slide groove 22 and on the side of the adjusting block 83 away from the cover 2 82. The opposite ends of the elastic element 84 are fixedly connected to the turntable 2 and the adjusting block 83 respectively. The elastic element 84 presses against the adjusting block 83, so that the adjusting block 83 tends to move closer to the cover 2 82. In this embodiment, the elastic element 84 is a spring.

[0044] Reference Figures 1-8 The cover body 1 81, cover body 2 82, adjusting block 83 and turntable 2 are spliced ​​to form a receiving groove 13. The corresponding protrusion 5 and fiber shaft frame 3 are located in the receiving groove 13. When the adjusting block 83 presses the cover body 2 82 against the cover body 1 81, the adjusting block 83 abuts against the side of the mounting base 31 away from the positioning block 6.

[0045] Reference Figures 1-8Each cover 82 has a marker block 14 that slides radially along the shaft 32 of the fiber shaft 3. The marker block 14 slides closer to or away from the fiber shaft 3. An abutment block 15 is fixed on the marker block 14. The abutment block 15 is located on the side of the marker block 14 that is closer to the fiber shaft 3 and is located in the receiving groove 13. The side of the abutment block 15 that is closer to the fiber shaft 3 is covered with bristles 17. An elastic element 16 is fixed on the cover 82. The elastic element 16 is located between the cover 82 and the abutment block 15 and is sleeved on the outside of the marker block 14. The opposite ends of the elastic element 16 abut against the cover 82 and the abutment block 15 respectively, so that the marker block 14 tends to move closer to the fiber shaft 3. The marker block 14 includes several color blocks 141 distributed along its sliding direction. The colors of the several color blocks 141 are different. The abutment block 15 is fixed on the color block 141 that is closest to the fiber shaft 3. In this embodiment, the elastic element 16 is a spring.

[0046] In practical use, operators can instantly determine the real-time remaining amount of filament bundles on the fiber shaft frame 3 by observing the color of the color block 141 exposed on the second cover 82, without opening the protective cover 8 or stopping the machine, thus realizing visualized monitoring and early warning of filament remaining amount.

[0047] The implementation principle of the composite pipeline fiber bundle reinforcement layer winding device in this application is as follows:

[0048] By setting up a protective cover 8 formed by splicing together cover 1 81, cover 2 82, adjusting block 83 and turntable 2, an independent sealed containment space is constructed for each fiber shaft frame 3. This structure effectively isolates the fiber shaft frame 3 and the fiber bundle it carries from the external production environment, reducing the adhesion or intrusion of dust, water vapor and other pollutants in the environment onto or into the surface of the fiber bundle, ensuring the cleanliness of the fiber bundle, thereby improving the interlayer bonding strength and overall mechanical properties of the final composite pipeline product.

[0049] When the fiber bundles on a single fiber shaft holder 3 are exhausted or the type of fiber bundle needs to be changed, the operator can move the cover body 82 closer to the turntable 2 with one hand, so that it presses the adjusting block 83 until the limiting block 12 disengages from the limiting groove 821. At this time, the adjusting block 83 disengages from the fiber shaft holder 3. The cover body 82 is then removed from the mounting groove 811 and the adjusting block 83 is pressed down to keep the adjusting block 83 and the fiber shaft holder 3 disengaged. Then, the fiber shaft holder 3 is moved away from the protrusion 5 so that the positioning block 6 disengages from the positioning groove 51. The fiber shaft holder 3 can then be removed to replenish or replace the fiber bundles. When reinstalling, the above steps are reversed. Under the automatic reset action of the elastic element 84, the protective cover 8 can quickly return to the sealed and locked state. The whole process is quick and does not require tools, realizing the rapid and safe replacement of the fiber shaft holder 3 under sealed protection, which greatly improves the equipment maintenance efficiency and work continuity.

[0050] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A composite pipeline fiber bundle reinforcement layer winding device, comprising a frame (1), a turntable (2) rotatably connected to the frame (1), and a plurality of fiber shaft frames (3) disposed on the turntable (2), wherein the rotation axis of the turntable (2) is horizontally arranged, and the turntable (2) is provided with a through hole (21) for the pipe body to pass through, characterized in that: The turntable (2) is provided with a plurality of fixing blocks (4) and protrusions (5) around the outer periphery of the first perforation (21). The fixing block (4) is provided with a second perforation (41) for threading fiber bundles. The protrusions (5) and the fixing blocks (4) correspond one to one, and the protrusions (5) are located on the side of the fixing block (4) away from the first perforation (21). The protrusions (5) are provided with positioning grooves (51). The fiber shaft frame (3) is provided with positioning blocks (6), and the positioning grooves (51) are for the positioning blocks (6) to be inserted. The turntable (2) is provided with several protective covers (8), and the protective covers (8) correspond one-to-one with the protrusions (5). Each protective cover (8) includes a cover body one (81), a cover body two (82), an adjusting block (83), and an elastic element one (84). The cover body one (81) is located on the turntable (2). The cover body one (81) has a perforation three (812) for fiber bundles to pass through. The cover body one (81) has an installation groove (811). The cover body two (82) is located in the installation groove (811). The inner wall of the installation groove (811) is provided with a limiting block (12). 12) Located on the side of the second cover (82) away from the turntable (2), the second cover (82) is provided with a limiting groove (821) for the limiting block (12) to be inserted into. The adjusting block (83) is located on the side of the second cover (82) close to the turntable (2) and is slidably connected to the turntable (2). The sliding direction of the adjusting block (83) is parallel to the rotation axis of the turntable (2). The elastic element (84) is provided on the turntable (2). The elastic element (84) abuts against the adjusting block (83), so that the adjusting block (83) has a tendency to move closer to the second cover (82). The cover body one (81), cover body two (82), adjusting block (83) and turntable (2) are spliced ​​to form a receiving groove (13). The fiber shaft frame (3) is located in the receiving groove (13). When the adjusting block (83) presses the cover body two (82) against the cover body one (81), the adjusting block (83) abuts against the side of the fiber shaft frame (3) away from the positioning block (6).

2. The composite pipeline fiber bundle reinforcement layer winding device according to claim 1, characterized in that: The fiber shaft frame (3) includes a mounting base (31), a shaft frame shaft (32), an adjusting ring (33), a movable ring (34), and several protrusions (35). The positioning block (6) is disposed on the mounting base (31). The shaft frame shaft (32) is rotatably connected to the mounting base (31), and the rotation axis of the shaft frame shaft (32) is parallel to the rotation axis of the turntable (2). The adjusting ring (33) is located on the side of the shaft frame shaft (32) near the turntable (2) and is threadedly connected to the mounting base (31). The movable ring (34) is located on the side of the adjusting ring (32) near the turntable (2). The joint ring (33) is slidably connected to the mounting base (31) on one side near the shaft frame (32), and the movable ring (34) slides close to or away from the shaft frame (32). The protrusion (35) is provided on the movable ring (34). A plurality of the protrusions (35) are located on one side of the movable ring (34) near the shaft frame (32) and are circumferentially distributed around the outer periphery of the shaft frame (32) rotation axis. The protrusion (35) is provided with an elastic layer (7), and the protrusion (35) abuts against the shaft frame (32) through the elastic layer (7).

3. The composite pipeline fiber bundle reinforcement layer winding device according to claim 1, characterized in that: A marker block (14) is slidably connected to the cover body two (82). The marker block (14) slides closer to or away from the fiber shaft frame (3). The marker block (14) is provided with an abutment block (15). The abutment block (15) is located on the side of the marker block (14) closer to the fiber shaft frame (3). The cover body two (82) is provided with an elastic element two (16). The elastic element two (16) abuts against the abutment block (15), so that the marker block (14) tends to move closer to the fiber shaft frame (3). The marker block (14) includes several color blocks (141) distributed along its sliding direction. The colors of the several color blocks (141) are different. The abutment block (15) is located on the color block (141) closest to the fiber shaft frame (3).

4. The composite pipeline fiber bundle reinforcement layer winding device according to claim 3, characterized in that: The abutment block (15) has bristles (17) on the side near the fiber shaft frame (3).

5. The composite pipeline fiber bundle reinforcement layer winding device according to claim 1, characterized in that: Two rotating shafts (9) are rotatably connected to the cover body (81). The two rotating shafts (9) are located inside the perforation three (812), and the rotation axis of the rotating shafts (9) is parallel to the rotation axis of the turntable (2). The cross-sectional area of ​​the rotating shafts (9) cut radially gradually increases towards the turntable (2). The two rotating shafts (9) and the inner wall of the perforation three (812) are spliced ​​to form a thread passage (11) for threading fiber bundles.

6. The composite pipeline fiber bundle reinforcement layer winding device according to claim 5, characterized in that: An elastic strip (10) is provided on the outer wall of the rotating shaft (9).

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