A fiber winding device for a composite gas cylinder liner

Abstract

The present application relates to the technical field of fiber winding device, and discloses a fiber winding device for composite gas cylinder liner, which comprises a device rack, a transverse sliding rail and a clamping seat arranged on the device rack, and a movable fiber winding head installed on the transverse sliding rail, a plurality of groups of fiber channels for passing a plurality of fibers are arranged on the fiber winding head, a rotating scraping member is rotatably installed in the fiber channel, the rotating scraping member comprises a plurality of groups of rotating cylinders coaxially connected, a scraping strip is arranged on the rotating scraping member and used for scraping resin glue liquid adhered to the inner wall of the fiber channel. The cleaning operation is synchronously performed with the winding operation, manual channel dredging is not needed during shutdown, the fiber channel glue accumulation induced fiber bundle fluffing and broken filament failure can be effectively avoided, and the continuous operation time of the equipment is prolonged. The glue suction pipeline directionally receives the scraped glue liquid, the secondary adhesion of the falling resin to the fiber surface is prevented, and the uniform and stable glue content of the fiber bundle is ensured.

Description

Technical Field

[0001] This invention relates to the field of fiber winding device technology, and specifically to a fiber winding device for composite gas cylinder liners. Background Technology

[0002] Fiber winding is the core process for preparing the reinforcing layer of composite gas cylinders. This type of equipment impregnates reinforcing fibers such as carbon fiber into a resin matrix and then lays them layer by layer on the outer wall of the inner liner of the gas cylinder according to a preset circumferential or spiral winding trajectory. After curing, it forms a fiber-reinforced structure with high compressive strength. It is a key production equipment for achieving lightweight gas cylinders and high mechanical performance.

[0003] Existing technology discloses a fiber winding process for composite gas cylinder liners (application number 202010539619.5), comprising the following steps: 1. Using an on-feed adhesive method, mixed fibers simultaneously pass through adhesive rollers; 2. Fibers are separated by a yarn separating comb, with high-strength fibers surrounding low-strength fibers; 3. The fibers then sequentially pass through adhesive rollers coated with thermosetting adhesive and are wound onto the liner mandrel by a CNC winding machine. This invention achieves mixed fiber winding on the same layer in the wet fiber winding process, using two or even three different types of fibers on the same layer, instead of the current practice of using only one type of fiber on the same layer. This significantly reduces manufacturing costs while ensuring product quality. It realizes mixed fiber winding on the same layer in the wet winding process, ensuring product quality while greatly reducing production costs and enriching the wet winding process.

[0004] However, existing technologies, especially this particular solution, still have the following problems: After the fibers are impregnated by the rubber roller, the resin tends to adhere and accumulate on the inner wall of the guide channel during the yarn splitting and guiding process. This causes the channel aperture to narrow, the fibers to be scratched and fuzzed, or even break. The machine needs to be stopped for manual cleaning, resulting in low efficiency of continuous operation of the equipment.

[0005] Relying solely on rubber rollers for gluing lacks the capability for online detection and dynamic control of the glue content in the filament bundle. This makes it impossible to adapt to the differentiated glue content requirements of different areas of the gas cylinder body and end cap. The uniformity of the glue content in the winding layer is poor, and defects such as local glue flow or insufficient wetting are prone to occur. Consequently, the pressure resistance of the finished product is inconsistent. Summary of the Invention

[0006] The purpose of this invention is to provide a technical solution to address the problems in the prior art mentioned in the background section.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: A fiber winding device for composite gas cylinder liners includes: a device frame; A transverse slide rail and a clamping seat are provided on the device frame. The two ends of the clamping seat are equipped with gas cylinder liner clamps for clamping the gas cylinder liner. A movable fiber winding head is installed on the transverse slide rail. The fiber winding machine head is provided with multiple sets of fiber channels for multiple strands of fiber to pass through. A rotating scraper is rotatably installed inside the fiber channel. The rotating scraper includes multiple sets of coaxially spliced ​​rotating cylinders. A scraping strip is provided on the rotating scraper for scraping off the resin adhesive adhering to the inner wall of the fiber channel. The bottom of the fiber channel is provided with a glue suction pipe, which includes a glue suction tube and a discharge tube that are interconnected. The glue inlet end of the glue suction tube is connected to the inner wall of the fiber channel and faces the scraping area of ​​the scraping strip. The scraped glue is collected by the glue suction tube and discharged outward through the discharge tube, so as to avoid excess resin glue inside the fiber channel from adhering to the fiber and thus affecting the fiber winding effect of the gas cylinder liner.

[0008] Preferably, the scraper is arranged along the outer wall of the rotating cylinder, and the scraper is made of elastic polyurethane material. The cross-section of the scraper is wedge-shaped, and its tip abuts against the inner wall of the fiber channel.

[0009] Preferably, the rotating cylinder of the rotating scraper is provided with a rotating bearing, and the rotating scraper is rotatably installed inside the fiber channel through the rotating bearing. A drive wheel and a driver are installed inside the fiber winding head, and the driver realizes the rotation of the rotating scraper through the drive wheel.

[0010] Preferably, while the transverse slide rail drives the fiber winding head to move laterally, the drive wheel drives the rotating scraper to rotate, thereby continuously cleaning the resin glue inside the fiber channel in real time.

[0011] Preferably, the infeed end and the outlet end of the rotating scraper are coaxially provided with a vision inspection component. The vision inspection component includes an annular mounting base and a vision acquisition module. The annular mounting base is fixed to the end of the rotating cylinder and rotates synchronously with the rotating cylinder. Multiple vision acquisition modules are arranged along the fiber channel to collect surface images of the carbon fiber bundle as it rotates with the rotating cylinder, so as to identify the glue content of the bundle.

[0012] Preferably, it also includes a control module, a fiber feeding roller, and an impregnation assembly, with the signal output terminals of multiple vision acquisition modules connected to the input terminal of the control module, and the output terminal of the control module electrically connected to the driver; The fiber feeding roller is equipped with a feeding speed control module, and the glue impregnation assembly is equipped with a glue output adjustment module. Both the feeding speed control module and the glue output adjustment module are electrically connected to the control module.

[0013] Preferably, the control module is configured to use a two-level linkage control mode to match the deviation in the glue content of the filament bundle: When the deviation between the glue content of the fiber bundle and the target value is within the preset small deviation range, the glue content of the fiber is precisely adjusted by changing the feeding speed of the fiber feeding roller. When the deviation between the glue content of the filament bundle and the target value exceeds the preset large deviation threshold, the feeding speed of the fiber feeding roller and the glue output of the glue dipping assembly are adjusted simultaneously to correct the basic value of glue content from the source of glue dipping. Then, the rotation speed of the scraper is finely adjusted to complete the closed-loop glue control.

[0014] Preferably, an annular glue collection groove is formed at the bottom of the inner wall of the fiber channel, the annular glue collection groove is located on the glue outlet side of the scraper, and the glue inlet end of the glue suction tube is connected to the annular glue collection groove. The discharge pipe is equipped with a negative pressure pump body, and the glue outlet of the discharge pipe extends to the outside of the fiber winding machine head and is connected to an external glue recovery container.

[0015] Preferably, the number of fiber channels is at least two, and multiple fiber channels are arranged in parallel inside the fiber winding head. Each fiber channel is equipped with a set of rotating scrapers. The driver synchronously drives all rotating cylinders to rotate. The fiber feeding roller and the impregnation assembly are located on one side of the machine frame. The fiber to be wound passes through the impregnation assembly and the fiber feeding roller to the fiber winding head.

[0016] Preferably, the glue outlet end of the impregnation assembly is correspondingly arranged with the fiber inlet end of the fiber channel, and the carbon fiber bundle enters the fiber channel after being impregnated with resin by the impregnation assembly. The front end of the fiber winding head is equipped with a rotating bracket for driving rotation. A wheel assembly mounting frame is mounted on the rotating bracket. The wheel assembly mounting frame is equipped with a tension wheel and a guide wheel. The fibers on the fiber winding head are wound onto the inner liner of the gas cylinder under the guidance of the tension wheel and the guide wheel.

[0017] Technical effects and advantages of the present invention: The fiber winding device for composite gas cylinder liners proposed in this invention has the following advantages compared with the prior art: In the fiber winding operation of the present invention, the fiber winding machine head moves back and forth along the transverse slide rail, and in conjunction with the gas cylinder inner liner clamp, drives the inner liner to rotate, so that the fiber is laid layer by layer on the outer wall of the inner liner; simultaneously, the rotating scraper in the fiber channel drives the scraper strip to rotate circumferentially, continuously scraping off the resin adhesive adhering to the inner wall of the channel; the scraped adhesive is collected by the suction pipe facing the scraping area and discharged outward through the discharge pipe.

[0018] The cleaning and winding operations are performed simultaneously, eliminating the need for manual channel clearing during machine downtime. This effectively prevents fiber bundle fuzzing and breakage caused by adhesive buildup and narrowing in the fiber channels, extending the continuous operating time of the equipment. The adhesive suction line directionally collects the scraped adhesive, preventing secondary adhesion of detached resin to the fiber surface and ensuring a uniform and stable adhesive content in the fiber bundle. The rotating scraper is embedded inside the fiber channel, eliminating the need for a separate cleaning device. The machine head has a compact structure and does not alter the original winding layout. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural schematic diagram of a fiber winding device for a composite gas cylinder liner according to the present invention. Figure 2 This is a top view schematic diagram of a fiber winding device for a composite gas cylinder liner according to the present invention. Figure 3 This is a front view schematic diagram of a fiber winding device for a composite gas cylinder liner according to the present invention. Figure 4 This is a schematic diagram of the fiber winding head and fiber channel structures in an embodiment of the present invention; Figure 5 This is a schematic diagram of the fiber winding machine head and the gas cylinder inner liner clamp in an embodiment of the present invention; Figure 6 For the present invention Figure 5 Enlarged structural diagram at point A; Figure 7 This is a schematic diagram of the structure of the rotating scraper in an embodiment of the present invention.

[0020] In the picture: 11. Frame of the device; 12. Transverse slide rail; 13. Clamping seat; 14. Gas cylinder inner liner clamp; 15. Fiber feeding roller; 16. Fiber winding head; 17. Rotating bracket; 18. Wheel assembly mounting frame; 19. Tensioning wheel; 110. Guide wheel; 111. Impregnation assembly; 21. Fiber channel; 22. Rotating scraper; 23. Rotating cylinder; 24. Rotary bearing; 25. Adhesive suction tube; 26. Scraper bar; 27. Drive wheel; 28. Driver; 29. ​​Discharge tube; 210. Vision acquisition module. Detailed Implementation

[0021] The subject matter described herein will now be discussed with reference to exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and implement the subject matter described herein, and changes may be made to the function and arrangement of the elements discussed without departing from the scope of this specification. Various processes or components may be omitted, substituted, or added as needed in the examples. Furthermore, features described in some examples may be combined in other examples.

[0022] To address the common problems of adhesive buildup and blockage on the inner wall of the fiber channel 21 and residual adhesive contamination of the fiber bundle during wet fiber winding, this device consists of a frame, clamping mechanism, winding head, and a matching cleaning and recycling system. The invention provides, for example... Figures 1 to 7 As shown, a fiber winding device for composite gas cylinder liners includes: device frame 11; A transverse slide rail 12 and a clamping seat 13 are provided on the device frame 11. The two ends of the clamping seat 13 are equipped with gas cylinder inner liner clamps 14 for clamping the gas cylinder inner liner. A movable fiber winding head 16 is installed on the transverse slide rail 12. The fiber winding head 16 is provided with multiple sets of fiber channels 21 for multiple strands of fiber to pass through. A rotating scraper 22 is rotatably installed inside the fiber channel 21. The rotating scraper 22 includes multiple sets of coaxially spliced ​​rotating cylinders 23. A scraper strip 26 is provided on the rotating scraper 22 for scraping off the resin adhesive adhering to the inner wall of the fiber channel 21. The bottom of the fiber channel 21 is provided with a glue suction pipe, which includes a glue suction tube 25 and a discharge tube 29 that are connected to each other. The glue inlet end of the glue suction tube 25 is connected to the inner wall of the fiber channel 21 and faces the scraping area of ​​the scraping bar 26. The scraped glue is collected by the glue suction tube 25 and discharged outward through the discharge tube 29, so as to avoid excess resin glue inside the fiber channel 21 from adhering to the fiber and thus affecting the fiber winding effect of the gas cylinder liner.

[0023] Working principle: During fiber winding operation, the fiber winding head 16 moves back and forth along the transverse slide rail 12, and works with the gas cylinder inner liner clamp 14 to drive the inner liner to rotate, so that the fiber is laid layer by layer on the outer wall of the inner liner; at the same time, the rotating scraper 22 in the fiber channel 21 drives the scraper strip 26 to rotate circumferentially, continuously scraping off the resin adhesive adhering to the inner wall of the channel; the scraped adhesive is collected by the suction pipe 25 facing the scraping area and discharged outward through the discharge pipe 29.

[0024] The cleaning and winding operations are performed simultaneously, eliminating the need for manual channel clearing during machine downtime. This effectively prevents fiber bundle fuzzing and breakage caused by adhesive buildup and diameter reduction in the fiber channel 21, extending the continuous operating time of the equipment. The adhesive suction pipe directionally collects the scraped adhesive, preventing the detached resin from re-adhering to the fiber surface and ensuring a uniform and stable adhesive content in the fiber bundle. The rotating scraper 22 is embedded inside the fiber channel 21, eliminating the need for an additional independent cleaning device. The machine head has a compact structure and does not alter the original winding layout.

[0025] Regarding the structural selection of the scraping strip 26, in order to balance the scraping cleaning force and the wear of the inner wall of the channel, its material and cross-sectional shape are designed as follows: the scraping strip 26 is set along the outer wall of the rotating cylinder 23, and the scraping strip 26 is made of elastic polyurethane material. The cross-section of the scraping strip 26 is wedge-shaped, and its tip abuts against the inner wall of the fiber channel 21.

[0026] It should be noted that the rotation support and power transmission structure of the rotating scraper 22 is the core to ensure the stable operation of the scraping action. The specific assembly relationship is as follows: The rotating cylinder 23 of the rotating scraper 22 is provided with a rotating bearing 24. The rotating scraper 22 is rotatably installed inside the fiber channel 21 through the rotating bearing 24. The fiber winding head 16 is equipped with a drive wheel 27 and a driver 28. The driver 28 realizes the rotation of the rotating scraper 22 through the drive wheel 27.

[0027] Furthermore, in order to achieve uninterrupted cleaning throughout the entire winding operation, the lateral movement of the machine head and the rotation of the scraper are linked by a synchronous triggering logic: while the lateral sliding rail 12 drives the fiber winding machine head 16 to move laterally, the drive wheel 27 drives the rotating scraper 22 to rotate, thereby continuously cleaning the resin glue inside the fiber channel 21 in real time.

[0028] To achieve comprehensive online detection of the adhesive content in the fiber bundle, this solution incorporates a rotating visual acquisition structure coaxially mounted at both the inlet and outlet ends of the rotating scraper 22. The visual detection assembly includes an annular mounting base and a visual acquisition module 210. The annular mounting base is fixed to the end of the rotating cylinder 23 and rotates synchronously with the rotating cylinder 23. Multiple visual acquisition modules 210 are arranged along the fiber channel 21 to collect surface images of the carbon fiber bundle as it rotates with the rotating cylinder 23, thereby identifying the adhesive content of the fiber bundle.

[0029] To meet the closed-loop control requirements of adhesive content, this device is equipped with a control module and establishes a complete signal connection link with each execution unit. It also includes a control module, a fiber feeding roller 15 and an adhesive impregnation assembly 111. The signal output terminals of multiple vision acquisition modules 210 are connected to the input terminals of the control module, and the output terminals of the control module are electrically connected to the driver 28. The fiber feeding roller 15 is equipped with a feeding speed control module, and the glue impregnation assembly 111 is equipped with a glue output adjustment module. Both the feeding speed control module and the glue output adjustment module are electrically connected to the control module.

[0030] To balance the response speed and control accuracy of adhesive content adjustment, this solution adopts a two-stage linkage differentiated control strategy. The specific operating logic is as follows: The control module is configured to use a two-stage linkage control mode to match the adhesive content deviation of the filament bundle: When the deviation between the glue content of the filament bundle and the target value is within the preset small deviation range, the glue content of the fiber is precisely adjusted by changing the feeding speed of the fiber feeding roller 15. When the deviation between the glue content of the filament bundle and the target value exceeds the preset large deviation threshold, the feeding speed of the fiber feeding roller 15 and the glue output of the glue dipping component 111 are adjusted simultaneously to correct the basic value of glue content from the source of glue dipping. Then, the rotation speed of the scraper 26 is finely adjusted to complete the closed-loop glue control.

[0031] It is worth mentioning that, in order to avoid the scraped glue from adhering to the channel again, the glue suction pipe is equipped with a directional glue collection and negative pressure suction structure: the bottom of the inner wall of the fiber channel 21 is provided with an annular glue collection groove, the annular glue collection groove is located on the glue outlet side of the scraper 26, and the glue inlet end of the glue suction pipe 25 is connected to the annular glue collection groove. The discharge pipe 29 is equipped with a negative pressure pump body, and the glue outlet end of the discharge pipe 29 extends to the outside of the fiber winding head 16 and is connected to a glue recovery container.

[0032] In the case of parallel winding of multiple filament bundles, this device adopts a multi-channel synchronous layout. The overall wiring and drive scheme is as follows: the number of fiber channels 21 is at least two, and multiple fiber channels 21 are arranged in parallel inside the fiber winding head 16. Each fiber channel 21 is equipped with a set of rotating scrapers 22. The driver 28 synchronously drives all rotating cylinders 23 to rotate. The fiber feeding roller 15 and the impregnation assembly 111 are located on one side of the device frame 11. The fiber to be wound passes through the impregnation assembly 111 and the fiber feeding roller 15 to reach the fiber winding head 16.

[0033] Finally, to ensure the tension stability and angle adaptability of the fiber bundle output, the front end of the fiber winding head 16 is provided with a rotatable guide wheel assembly structure: the glue outlet end of the impregnation assembly 111 is correspondingly set with the fiber inlet end of the fiber channel 21, and the carbon fiber bundle enters the fiber channel 21 after being impregnated with resin by the impregnation assembly 111. The front end of the fiber winding head 16 is equipped with a rotating bracket 17 for driving rotation. A wheel assembly mounting frame 18 is mounted on the rotating bracket 17. A tensioning wheel 19 and a guide wheel 110 are provided on the wheel assembly mounting frame 18. The fibers on the fiber winding head 16 are wound onto the inner liner of the gas cylinder under the guidance of the tensioning wheel 19 and the guide wheel 110.

[0034] In summary, the present invention also has the following combined principles and effects: During operation, the inner liner of the composite gas cylinder is first clamped and fixed on the mounting base 13 using the inner liner clamp 14. The carbon fiber bundle is drawn out by the fiber feeding roller 15, impregnated with resin by the impregnation assembly 111, and then fed into the fiber channel 21 inside the fiber winding head 16. Finally, it is guided by the tension wheel 19 and guide wheel 110 at the front end of the rotating bracket 17 and fixed to the outer wall of the inner liner. The fiber winding head 16 moves back and forth along the transverse slide rail 12, coordinating with the rotation of the inner liner, to sequentially complete the circumferential winding of the cylinder body section and the spiral winding of the end cap section.

[0035] Throughout the winding process, the driver 28 drives the rotating cylinder 23 and the scraping strips 26 on the outer wall to rotate continuously via the drive wheel 27, scraping away the resin residue adhering to the inner wall of the fiber channel 21 in real time. The scraped-off adhesive flows into the annular adhesive collection trough at the bottom of the channel, is collected by the suction pipe 25, and then sucked outward by the negative pressure of the discharge pipe 29. At the same time, the vision acquisition modules 210 at both ends of the rotating cylinder 23 rotate synchronously with the cylinder, collecting images of the entire circumference of the carbon fiber bundle, identifying the real-time adhesive content, and feeding it back to the control module.

[0036] The control module adopts a two-level linkage mode to regulate the glue content: when the glue content deviation is small, only the feeding speed of the fiber feeding roller 15 is adjusted to complete the precise fine adjustment; when the glue content deviation exceeds the threshold, the glue output of the glue dipping component 111 is adjusted synchronously to correct the basic value from the source, and then the rotation speed of the scraper 26 is finely adjusted to perform end calibration, forming a complete closed-loop glue control link.

[0037] Online cleaning without downtime: The rotating scraper 22 operates synchronously with the winding operation, which can scrape off the glue buildup on the inner wall of the fiber channel 21 in real time, avoiding problems such as reduced aperture, fuzzing and breakage of the filaments caused by glue buildup. No need to stop the machine for manual unblocking, which greatly improves the continuous production time of the equipment.

[0038] Closed-loop precise control of adhesive content: Relying on the following rotating vision acquisition module 210, the full circumference of the filament bundle can be detected without dead angles, and the detection accuracy is higher than that of fixed single-angle acquisition; With the graded linkage control strategy, it takes into account both the rapid response to small deviations and the root cause correction of large deviations, and can adapt to the different adhesive content requirements of different areas of the cylinder and end cap, thereby improving the consistency of the winding layer strength.

[0039] Directional recycling of adhesive to prevent contamination: The annular adhesive collection tank and negative pressure adhesive suction pipeline collect the scraped adhesive in a directional manner, which not only avoids the adhesive from adhering to the filaments again and affecting the winding quality, but also allows the recycled resin to be reused, reducing material loss and waste liquid treatment costs.

[0040] High structural integration: The rotating scraper 22 simultaneously performs three functions: cleaning the inner wall of the channel, rotating and bearing the vision component, and fine-tuning the glue content of the fiber bundle. It shares the same drive 28 as the power source, eliminating the need for additional independent mechanisms. The fiber winding head 16 has a compact overall structure and high space utilization.

[0041] Multi-channel high-efficiency adaptation: Multiple fiber channels 21 are driven synchronously and run in parallel, and the front-end rotatable guide wheel group adapts to different winding angles, ensuring the tension stability of multi-filament layup, and taking into account both winding efficiency and forming quality.

[0042] The embodiments of the present invention have been described above, but the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention, all of which are within the protection scope of the present invention.

Claims

1. A fiber winding device for composite gas cylinder liners, characterized in that, include: Device frame (11); A transverse slide rail (12) and a clamping seat (13) are provided on the device frame (11). The clamping seat (13) is equipped with a gas cylinder liner clamp (14) for clamping the gas cylinder liner at both ends. A movable fiber winding head (16) is installed on the transverse slide rail (12). The fiber winding head (16) is provided with multiple fiber channels (21) for multiple strands of fiber to pass through. A rotating scraper (22) is rotatably installed inside the fiber channel (21). The rotating scraper (22) includes multiple coaxially spliced ​​rotating cylinders (23). A scraper strip (26) is provided on the rotating scraper (22) for scraping off the resin adhesive adhering to the inner wall of the fiber channel (21). The bottom of the fiber channel (21) is provided with a glue suction pipe, which includes a glue suction pipe (25) and a discharge pipe (29) that are connected to each other. The glue inlet end of the glue suction pipe (25) is connected to the inner wall of the fiber channel (21), and the glue inlet end faces the scraping area of ​​the scraping bar (26). The scraped glue is collected by the glue suction pipe (25) and discharged outward through the discharge pipe (29), so as to avoid excess resin glue inside the fiber channel (21) from adhering to the fiber, thereby affecting the fiber winding effect of the gas cylinder liner.

2. The fiber winding device for composite gas cylinder liners according to claim 1, characterized in that, The scraping strip (26) is arranged along the outer wall of the rotating cylinder (23), and the scraping strip (26) is made of elastic polyurethane material. The cross section of the scraping strip (26) is wedge-shaped, and its tip abuts against the inner wall of the fiber channel (21).

3. The fiber winding device for composite gas cylinder liners according to claim 2, characterized in that, The rotating drum (23) of the rotating scraper (22) is provided with a rotating bearing (24). The rotating scraper (22) is rotatably installed inside the fiber channel (21) through the rotating bearing (24). The fiber winding head (16) is equipped with a drive wheel (27) and a driver (28). The driver (28) realizes the rotation of the rotating scraper (22) through the drive wheel (27).

4. The fiber winding device for composite gas cylinder liners according to claim 3, characterized in that, While the transverse slide rail (12) drives the fiber winding head (16) to move laterally, the drive wheel (27) drives the rotating scraper (22) to rotate, thereby continuously cleaning the resin glue inside the fiber channel (21) in real time.

5. A fiber winding device for a composite gas cylinder liner according to claim 1, characterized in that, The infeed end and the outlet end of the rotating scraper (22) are coaxially provided with a vision inspection component. The vision inspection component includes an annular mounting base and a vision acquisition module (210). The annular mounting base is fixed to the end of the rotating cylinder (23) and rotates synchronously with the rotating cylinder (23). Multiple vision acquisition modules (210) are arranged along the fiber channel (21) to collect surface images of the carbon fiber bundles as the rotating cylinder (23) rotates, so as to identify the glue content of the bundles.

6. A fiber winding device for a composite gas cylinder liner according to claim 5, characterized in that, It also includes a control module, a fiber feeding roller (15) and an impregnation assembly (111), the signal output terminals of multiple vision acquisition modules (210) are connected to the input terminals of the control module, and the output terminals of the control module are electrically connected to the driver (28); The fiber feeding roller (15) is equipped with a feeding speed control module, and the glue dipping assembly (111) is equipped with a glue output adjustment module. Both the feeding speed control module and the glue output adjustment module are electrically connected to the control module.

7. A fiber winding device for a composite gas cylinder liner according to claim 6, characterized in that, The control module is configured to use a two-level linkage control mode to match the deviation in the glue content of the filament bundle: When the deviation between the glue content of the filament bundle and the target value is within the preset small deviation range, the glue content of the fiber is precisely adjusted by changing the feeding speed of the fiber feeding roller (15). When the deviation between the glue content of the filament bundle and the target value exceeds the preset large deviation threshold, the feeding speed of the fiber feeding roller (15) and the glue output of the glue dipping assembly (111) are adjusted simultaneously to correct the basic value of glue content from the source of glue dipping. Then, the rotation speed of the scraper (26) is finely adjusted to complete the closed-loop glue control.

8. A fiber winding device for a composite gas cylinder liner according to claim 7, characterized in that, The bottom of the inner wall of the fiber channel (21) is provided with an annular glue collection groove, which is located on the glue outlet side of the scraper (26), and the glue inlet end of the glue suction tube (25) is connected to the annular glue collection groove. The discharge pipe (29) is equipped with a negative pressure pump body. The glue outlet end of the discharge pipe (29) extends to the outside of the fiber winding head (16) and is connected to an external glue recovery container.

9. A fiber winding device for a composite gas cylinder liner according to claim 8, characterized in that, The number of fiber channels (21) is at least two, and multiple fiber channels (21) are arranged in parallel inside the fiber winding head (16). Each fiber channel (21) is provided with a set of rotating scrapers (22); the driver (28) synchronously drives all rotating cylinders (23) to rotate. The fiber feeding roller (15) and the impregnation assembly (111) are located on one side of the device frame (11). The fiber to be wound passes through the impregnation assembly (111) and the fiber feeding roller (15) to the fiber winding head (16).

10. A fiber winding device for a composite gas cylinder liner according to claim 9, characterized in that, The glue outlet end of the resin impregnation assembly (111) is correspondingly set with the fiber inlet end of the fiber channel (21). The carbon fiber bundle enters the fiber channel (21) after being impregnated with resin by the resin impregnation assembly (111). The front end of the fiber winding head (16) is equipped with a rotating bracket (17) for driving rotation. A wheel assembly mounting bracket (18) is installed on the rotating bracket (17). A tension wheel (19) and a guide wheel (110) are provided on the wheel assembly mounting bracket (18). The fibers on the fiber winding head (16) are wound around the inner liner of the gas cylinder under the guidance of the tension wheel (19) and the guide wheel (110).

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