Competition kayak processing technology

Abstract

The invention provides a racing kayak processing technology. The racing kayak processing technology comprises the following steps that S1, materials are prepared and pretreated; s2, forming a boat body; s3, a deck is manufactured and installed; s4, detail processing and accessory installation; and S5, quality detection. According to the racing kayak processing technology, the high-performance carbon fiber prepreg is selected and combined with an autoclave, a vacuum bag and other optimized forming technologies, so that the strength-weight ratio of a kayak is increased, the rowing speed and the competitive performance are remarkably improved, meanwhile, technological parameters are accurately controlled, it is ensured that the performance of a kayak body is uniform, stability and controllability are improved, and the service life of the kayak is prolonged. Potential defects are comprehensively checked, competition error risks caused by quality problems are reduced, in the aspect of production efficiency, process steps are optimized, redundant procedures and waiting time are reduced, batch production is facilitated, in the aspect of cost control, by improving the material utilization rate, reducing the rejection rate and improving the production efficiency, the comprehensive cost is effectively controlled while the high performance of products is guaranteed, and the product quality is improved. And the economic benefit maximization is realized.

Description

Technical Field

[0001] The present invention relates to the technical field of kayak processing, and in particular to a processing technology for competition kayaks. Background Art

[0002] As an important piece of equipment in competitive sports, competition kayaks have extremely stringent requirements on their performance. In terms of material selection, it is necessary to ensure that the hull has sufficient strength to withstand the impact of water flow while achieving lightweightness to increase paddling speed. In traditional kayak manufacturing technology, such as the early method of hollowing out wood or splicing wooden boards and then covering them with animal leather, although feasible to a certain extent, it has many defects, such as poor durability, heavy weight, speed limitation, and is affected by the characteristics of natural materials, making it difficult to accurately control the various performance indicators of the hull.

[0003] With the development of materials science, materials such as plastics (such as polyethylene (PE), fiber-reinforced plastics (such as fiberglass (FRP)), thermoplastics (such as Kevlar) and carbon fiber have gradually been used in kayak manufacturing. However, these materials face their own challenges during processing. Taking polyethylene as an example, although it has good durability, impact resistance and easy processing and is relatively low in cost, the kayaks made from it are usually heavy, which is not advantageous in competitions that pursue extreme speed. Kayaks made of fiberglass, although light and strong, have high manufacturing costs and are difficult to repair after damage. Although Kevlar and carbon fiber materials have excellent performance and can meet the high-performance requirements of kayaks in competitions, they are expensive and require extremely high manufacturing technology. In addition, how to ensure the full utilization of material properties, the precise assembly of various components and the stability of the overall structure during the processing are all problems that need to be solved urgently.

[0004] The existing processing technology for racing kayaks has problems such as insufficient material performance, complex processing procedures, poor product quality consistency and high costs.

[0005] Therefore, it is necessary to provide a racing kayak processing technology to solve the above technical problems. Summary of the Invention

[0006] The present invention provides a competition kayak processing technology, which solves the problems of insufficient material performance, complex processing flow, poor product quality consistency and high cost in the existing competition kayak processing technology.

[0007] In order to solve the above technical problems, the present invention provides a process for processing a racing kayak, comprising the following steps:

[0008] S1: Material preparation and pretreatment; S11: Select carbon fiber prepreg as the main hull material and inspect the carbon fiber prepreg to ensure there are no obvious defects, scratches, or uneven resin distribution. At the same time, prepare high-performance epoxy resin for auxiliary structures and connection parts to ensure the firmness of the connection between components;

[0009] S12: Clean and pre-treat the mold, use mold cleaner to remove oil and impurities on the mold surface, and then evenly apply release agent on the mold surface to ensure a smooth demoulding process;

[0010] S2: Hull molding; S21: The hull is made using an autoclave molding process, where the cut carbon fiber prepreg is laid layer by layer in the mold according to the design requirements, and the air between the layers is expelled by rolling.

[0011] S22: Place the mold with the prepreg laid into the autoclave and perform curing and molding according to a specific heating and pressurizing curve. First, slowly heat it to 80-100°C at a rate of 1-2°C / min and keep it warm for 10-15 minutes to allow the resin to initially flow and infiltrate the fibers. Then continue to heat it to 120-150°C while applying a pressure of 0.5-0.8MPa. Keep it warm and pressurized for 60-90 minutes to fully cure the resin and form a stable carbon fiber composite material structure.

[0012] S3: Deck production and installation; S31: The deck is made using a vacuum bag molding process. Carbon fiber fabric and epoxy resin system that matches the hull are selected. The carbon fiber fabric is cut according to the designed shape, and a release cloth, carbon fiber fabric, and guide net are laid on the mold in sequence. The mold is then sealed with a vacuum bag. The air in the vacuum bag is extracted by a vacuum pump, so that the carbon fiber fabric fits tightly to the mold under negative pressure, and excess resin is discharged to improve the density and strength of the deck. The deck is cured at 60-80°C for 2-3 hours to obtain a formed deck.

[0013] S32: Install the prepared deck onto the hull. Apply high-performance epoxy resin glue evenly to the joints between the hull and the deck. Then, accurately align the deck and secure it to the hull using a clamp. Ensure the joints fit tightly and without gaps. Keep the clamps stable during the curing process to allow the epoxy resin to fully cure and form a strong connection.

[0014] S4: Detail processing and accessories installation; S41: Surface grinding of the formed kayak hull and deck to remove burrs and defects on the surface. After grinding, the kayak is painted.

[0015] S42: Install seat, footrests and oarlock accessories;

[0016] S5: Quality inspection; S51: Perform appearance inspection, observe the surface of the kayak, and promptly repair or rework any appearance defects found;

[0017] S52: Use ultrasonic flaw detectors to inspect the kayak's hull and deck for internal defects, checking for delamination and looseness. For any internal defects detected, local repairs or scrapping will be performed depending on the severity of the defects.

[0018] S53: Conduct a static load test, applying a static load simulating the athlete's weight and the maximum force during paddling to the kayak. Continue loading for 1-2 hours and observe the kayak for deformation and cracking. For kayaks that deform beyond the design requirements or crack, analyze the causes and make improvements.

[0019] S54: Conduct water tests, place the kayak in the water, and perform paddling tests to evaluate the kayak's stability, maneuverability, and speed performance indicators. Based on the water test results, optimize and adjust the kayak's performance.

[0020] Preferably, a paint spraying device is required in the step S4, and the paint spraying device includes a paint spraying box;

[0021] Moving parts, two groups of moving parts are respectively arranged on both sides of the interior of the paint spraying box, and a spraying device is provided on the surface of the moving parts. The moving parts are used to drive the spraying device to move, and the spraying device is used to paint the kayak inside the paint spraying box;

[0022] A first adsorption device, multiple groups of the first adsorption devices are respectively arranged at the top of the interior of the paint spray box, and multiple groups of second adsorption devices are arranged at the bottom of the interior of the paint spray box. The first adsorption device and the second adsorption device are used to limit the kayak.

[0023] Preferably, the movable component includes a limiting rod, a threaded rod and a driving member, the driving member is fixedly installed on one side of the outer surface of the paint spray box, the threaded rod is fixedly connected to the output shaft end of the driving member, and the limiting rod is fixedly installed on the other side inside the paint spray box.

[0024] Preferably, the spraying equipment includes a movable plate, a threaded hole, a sliding hole, a feed pipe and a spray nozzle, the movable plate is arranged on the outer surface of the threaded rod, the threaded hole is opened on one side of the outer surface of the movable plate, the sliding hole is opened on the other side of the outer surface of the movable plate, the feed pipe is fixedly connected to the top of the movable plate, and the multiple spray nozzles are respectively arranged at the bottom of the feed pipe.

[0025] Preferably, the second adsorption device comprises a jacking part, a support block, a support pipe, a suction cup and a ventilation pipe, the jacking part is fixedly installed on the outer surface of the paint spraying box, the support block is fixedly installed on the output shaft end of the jacking part, the support pipe is fixedly installed on one side inside the support block, the suction cup is fixedly connected to one end of the support pipe, and the ventilation pipe is fixedly connected to the other end of the support pipe.

[0026] Preferably, the feeding pipe is made of corrugated pipe material, the feeding pipe extends into the inside of the moving plate and is placed transversely, a plurality of spraying nozzles can be equidistantly installed on the surface of the feeding pipe, and the other end of the feeding pipe is connected with a material pump and a feeding storage tank for feeding.

[0027] Preferably, the support pipe is made of metal material, the ventilation pipe is made of corrugated pipe material, and the support pipe and the ventilation pipe are connected.

[0028] Preferably, the bottom end of the ventilation pipe is connected with an air pump.

[0029] Preferably, the moving plate is threadedly engaged with the outer surface of the threaded rod through a threaded hole, and the moving plate is slidingly installed on the outer surface of the limiting rod through a sliding hole.

[0030] Preferably, a box door is rotatably installed on one side of the front surface of the paint spraying box through a hinge.

[0031] Compared with the related art, the race kayak processing technology has the following beneficial effects:

[0032] The race kayak processing technology provided by the application selects high-performance carbon fiber prepreg and combines heat pressing tank and vacuum bag pressing to optimize the forming process, so that the strength-to-weight ratio of the kayak is improved, the weight is reduced by 10%-20% under the condition of ensuring the same strength, the rowing speed and competitive performance are significantly improved, the process parameters are accurately controlled to ensure uniformity of the kayak performance and improve stability and maneuverability, a strict quality detection process covers appearance inspection, ultrasonic flaw detection, static load test and water test, potential defects are comprehensively investigated, product quality meets high standards of the race, and the risk of competition failure caused by quality problems is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 The first embodiment of the race kayak processing technology provided by the application is shown in the structural schematic view.

[0034] Figure 2 A schematic structural diagram of a second embodiment of a kayak competition processing technology provided by the present invention;

[0035] Figure 3 for Figure 2 An enlarged schematic diagram of point A is shown;

[0036] Figure 4 for Figure 2 The schematic structural diagram of the second adsorption device is shown.

[0037] Numbers in the figure: 1. Paint spray box, 2. Moving part, 21. Limit rod, 22. Threaded rod, 23. Driving part, 3. Spraying equipment, 31. Moving plate, 32. Threaded hole, 33. Sliding hole, 34. Feed pipe, 35. Spray nozzle, 4. First adsorption device, 5. Second adsorption device, 51. Lifting part, 52. Support block, 53. Support tube, 54. Suction cup, 55. Ventilation pipe, 6. Box door. DETAILED DESCRIPTION

[0038] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0039] First embodiment

[0040] Please refer to Figure 1 ,in, Figure 1 This is a schematic diagram of the structure of the first embodiment of a kayak processing technology for competition provided by the present invention. A kayak processing technology for competition includes the following steps:

[0041] S1: Material preparation and pretreatment; S11: Select carbon fiber prepreg as the main hull material and inspect the carbon fiber prepreg to ensure there are no obvious defects, scratches, or uneven resin distribution. At the same time, prepare high-performance epoxy resin for auxiliary structures and connection parts to ensure the firmness of the connection between components;

[0042] S12: Clean and pre-treat the mold, use mold cleaner to remove oil and impurities on the mold surface, and then evenly apply release agent on the mold surface to ensure a smooth demoulding process;

[0043] S2: Hull molding; S21: The hull is made using an autoclave molding process, where the cut carbon fiber prepreg is laid layer by layer in the mold according to the design requirements, and the air between the layers is expelled by rolling.

[0044] S22: Place the mold with the prepreg laid into the autoclave and perform curing and molding according to a specific heating and pressurizing curve. First, slowly heat it to 80-100°C at a rate of 1-2°C / min and keep it warm for 10-15 minutes to allow the resin to initially flow and infiltrate the fibers. Then continue to heat it to 120-150°C while applying a pressure of 0.5-0.8MPa. Keep it warm and pressurized for 60-90 minutes to fully cure the resin and form a stable carbon fiber composite material structure.

[0045] S3: Deck production and installation; S31: The deck is made using a vacuum bag molding process. Carbon fiber fabric and epoxy resin system that matches the hull are selected. The carbon fiber fabric is cut according to the designed shape, and a release cloth, carbon fiber fabric, and guide net are laid on the mold in sequence. The mold is then sealed with a vacuum bag. The air in the vacuum bag is extracted by a vacuum pump, so that the carbon fiber fabric fits tightly to the mold under negative pressure, and excess resin is discharged to improve the density and strength of the deck. The deck is cured at 60-80°C for 2-3 hours to obtain a formed deck.

[0046] S32: Install the prepared deck onto the hull. Apply high-performance epoxy resin glue evenly to the joints between the hull and the deck. Then, accurately align the deck and secure it to the hull using a clamp. Ensure the joints fit tightly and without gaps. Keep the clamps stable during the curing process to allow the epoxy resin to fully cure and form a strong connection.

[0047] S4: Detail processing and accessories installation; S41: Surface grinding of the formed kayak hull and deck to remove burrs and defects on the surface. After grinding, the kayak is painted.

[0048] S42: Install seat, footrests and oarlock accessories;

[0049] S5: Quality inspection; S51: Perform appearance inspection, observe the surface of the kayak, and promptly repair or rework any appearance defects found;

[0050] S52: Use ultrasonic flaw detectors to inspect the kayak's hull and deck for internal defects, checking for delamination and looseness. For any internal defects detected, local repairs or scrapping will be performed depending on the severity of the defects.

[0051] S53: Conduct a static load test, applying a static load simulating the athlete's weight and the maximum force during paddling to the kayak. Continue loading for 1-2 hours and observe the kayak for deformation and cracking. For kayaks that deform beyond the design requirements or crack, analyze the causes and make improvements.

[0052] S54: Conduct water tests, place the kayak in the water, and perform paddling tests to evaluate the kayak's stability, maneuverability, and speed performance indicators. Based on the water test results, optimize and adjust the kayak's performance.

[0053] The working principle of the competition kayak processing technology provided by the present invention is as follows:

[0054] When working, first select T700 grade carbon fiber prepreg, which has a tensile strength of 5000MPa and a density of 1.76g / cm 3 , carefully check each roll of prepreg to ensure there are no quality problems, prepare high-performance epoxy resin, which has a shear strength of 32MPa after curing;

[0055] Use a special mold cleaner to deeply clean the aluminum alloy mold, and then evenly apply the release agent to ensure that a complete and uniform release film is formed on the mold surface;

[0056] T700-grade carbon fiber prepreg is precisely cut according to the design drawings and laid layer by layer in the mold. Two additional layers of prepreg are laid in the bow, stern and mid-section to enhance strength. During the laying process, a dedicated rolling tool is used to slowly roll the prepreg from one end to the other to ensure that each layer fits tightly together without any air trapped.

[0057] The mold with prepreg was placed in an autoclave and cured according to the following curve: the temperature was raised to 90°C at a rate of 1.5°C / min and kept at this temperature for 12 minutes; then the temperature was continued to be raised to 130°C while applying a pressure of 0.6 MPa and kept at this temperature and pressure for 70 minutes.

[0058] High-strength carbon fiber fabric is selected and cut according to the designed shape. A release cloth, carbon fiber fabric, and guide mesh are laid on the mold in sequence. The mold is sealed with a vacuum bag. A vacuum pump is used to draw vacuum to reduce the pressure inside the bag to -0.09 MPa. The deck is then cured at 70°C for 2.5 hours to obtain a finished deck.

[0059] Apply epoxy resin glue evenly on the connection between the hull and the deck, accurately align the deck and install it on the hull. Use a customized clamp to fix it to ensure a tight connection and cure it at room temperature for 24 hours.

[0060] Use 80-grit, 120-grit, 240-grit, and 400-grit sandpaper to polish the kayak hull and deck in sequence until the surface is smooth and flat. Use water-resistant, wear-resistant, and UV-resistant paint and spray it with 3 layers, with each layer thickness controlled at 25μm.

[0061] Based on feedback from professional athletes and ergonomic data, the installation positions of the seat and footrests are precisely determined, high-strength stainless steel bolts and nuts are used to fix the accessories, and thread fasteners are applied. The oar rack is integrated with the hull and is firmly connected to the hull by pre-embedded carbon fiber reinforcements.

[0062] No defects such as bubbles, cracks, scratches, etc. were found in the appearance inspection, and the coating was uniform, smooth, and consistent in color;

[0063] Use ultrasonic flaw detector to detect internal delamination, looseness and other problems;

[0064] A static load test was conducted, applying a static load equivalent to the athlete's weight and 1.2 times the maximum rowing force, for 1.5 hours. The kayak showed no deformation or cracking;

[0065] During the water test, professional athletes reported that the kayak has good stability, flexible control, and a significantly improved speed compared to previously used kayaks.

[0066] Compared with related technologies, the present invention provides a kayak processing technology for competitions, which has the following beneficial effects:

[0067] The present invention provides a processing technology for competition kayaks. By selecting high-performance carbon fiber prepreg and combining it with optimized molding processes such as autoclave and vacuum bag pressing, the strength-to-weight ratio of the kayak is improved, and the weight is reduced by 10%-20% while ensuring the same strength, which significantly improves the paddling speed and competitive performance. At the same time, the process parameters are precisely controlled to ensure uniform performance of the hull, improve stability and controllability, and a strict quality inspection process covers appearance inspection, ultrasonic flaw detection, static load test and water test to comprehensively investigate potential defects, ensure that the product meets the high standards of the competition, and reduce the risk of competition errors due to quality problems. In terms of production efficiency, the process steps are optimized to reduce redundant processes and waiting time. For example, the autoclave molding process shortens the curing time by 20%-30% through a precise heating and pressurization curve, which is conducive to mass production. In terms of cost control, although high-performance materials are used, by improving material utilization, reducing scrap rate and improving production efficiency, the overall cost is effectively controlled while ensuring product high performance, thereby maximizing economic benefits.

[0068] Second embodiment

[0069] Please refer to Figure 2 、 Figure 3 and Figure 4 Based on the first embodiment of this application, which provides a kayak processing technology for competition, the second embodiment of this application provides another kayak processing technology for competition. The second embodiment is merely a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the independent implementation of the first embodiment.

[0070] Specifically, the second embodiment of the application provides a race kayak processing process, which is different from the first embodiment in that a paint spraying device is used in the S4 step, and the paint spraying device comprises a paint spraying box 1;

[0071] A plurality of moving parts 2 are arranged on the two sides of the inside of the paint spraying box 1, respectively, and the surfaces of the moving parts 2 are provided with spraying devices 3, the moving parts 2 are used to drive the spraying devices 3 to move, and the spraying devices 3 are used to spray paint on the kayak inside the paint spraying box 1.

[0072] A plurality of first adsorption devices 4 are arranged on the top of the inside of the paint spraying box 1, respectively, and a plurality of second adsorption devices 5 are arranged on the bottom of the inside of the paint spraying box 1, and the first adsorption devices 4 and the second adsorption devices 5 are used to limit the kayak.

[0073] The moving part 2 comprises a limiting rod 21, a threaded rod 22 and a driving part 23, the driving part 23 is fixedly installed on one side of the outer surface of the paint spraying box 1, the threaded rod 22 is fixedly connected to the output shaft end of the driving part 23, and the limiting rod 21 is fixedly installed on the other side of the inside of the paint spraying box 1.

[0074] The spraying device 3 comprises a moving plate 31, a threaded hole 32, a sliding hole 33, a feeding pipe 34 and a spraying nozzle 35, the moving plate 31 is arranged on the outer surface of the threaded rod 22, the threaded hole 32 is arranged on one side of the outer surface of the moving plate 31, the sliding hole 33 is arranged on the other side of the outer surface of the moving plate 31, the feeding pipe 34 is fixedly connected to the top of the moving plate 31, and a plurality of spraying nozzles 35 are arranged on the bottom of the feeding pipe 34.

[0075] The second adsorption device 5 comprises a jacking part 51, a supporting block 52, a supporting pipe 53, a suction cup 54 and a ventilation pipe 55, the jacking part 51 is fixedly installed on the outer surface of the paint spraying box 1, the supporting block 52 is fixedly installed on the output shaft end of the jacking part 51, the supporting pipe 53 is fixedly installed on one side of the inside of the supporting block 52, the suction cup 54 is fixedly connected to one end of the supporting pipe 53, and the ventilation pipe 55 is fixedly connected to the other end of the supporting pipe 53.

[0076] The feeding pipe 34 is made of corrugated pipe material, the feeding pipe 34 extends into the inside of the moving plate 31 and is placed transversely, a plurality of spraying nozzles 35 can be installed equidistantly on the surface of the feeding pipe 34, and the other end of the feeding pipe 34 is connected to a material pump and a feeding storage box for feeding.

[0077] The supporting pipe 53 is made of metal material, the ventilation pipe 55 is made of corrugated pipe material, and the supporting pipe 53 and the ventilation pipe 55 are connected.

[0078] The bottom end of the ventilation pipe 55 is connected to an air pump.

[0079] The movable plate 31 is threadedly engaged with the outer surface of the threaded rod 22 through the threaded hole 32 , and the movable plate 31 is slidably mounted on the outer surface of the limiting rod 21 through the sliding hole 32 .

[0080] A box door 6 is mounted on one side of the front of the paint spray box 1 by rotating through a hinge.

[0081] The driving member 23 adopts a servo motor structure, and the lifting member 51 is a hydraulic cylinder structure.

[0082] A pipe connection is provided on the rear side of the surface of the paint spray box 1, and the pipe is connected to the air supply equipment to allow hot air to enter for drying.

[0083] The first adsorption device 4 located at the top of the paint spray box 1 and the second adsorption device 5 at the bottom have the same structure.

[0084] The bottom end of the ventilation pipe 55 is connected to the air pump. After the suction cup 54 is adsorbed on the surface of the kayak, the air pump is started, and the air flow adsorbs the kayak to the suction cup 54 to increase the adsorption effect. The support tube 53 is made of metal to facilitate supporting the kayak.

[0085] The working principle of the competition kayak processing technology provided by the present invention is as follows:

[0086] During operation, the kayak to be painted is first placed on the top of the suction cup 54 of the second adsorption device 5. The support tube 53 and the support block 52 are used to support the kayak. The air pump generates suction so that the kayak is pressed by the suction to the surface of the suction cup 54 and is adsorbed. Then the output shaft of the driving member 23 at the top rotates to drive the threaded rod 22 to rotate. The threaded rod 22 rotates to engage the threaded hole 32 of the movable plate 31. The movable plate 31 slides on the surface of the limit rod 21 through the sliding hole 33. The movable plate 31 pulls the feed tube 34 to drive multiple groups of spray nozzles 35 to slide on the top of the kayak to paint the kayak.

[0087] After the top of the kayak is painted, it is dried. After the surface is dried, the output shaft of the lifting part of the first adsorption device 4 located on the top of the paint spray box 1 pushes the support block, support rod, suction cup and ventilation pipe downward. At the same time, the air pump connected to the ventilation pipe is started, so that the suction cup is adsorbed on the top of the kayak, the air pump of the second adsorption device 5 stops working, and then the output shaft of the lifting part 51 of the second adsorption device 5 moves downward, and the suction cup 54 is separated from the kayak.

[0088] Then the output shaft of the driving member 23 at the bottom rotates to drive the threaded rod 22 to rotate, and the threaded rod 22 rotates to cause the spraying device 3 on the threaded engagement surface to slide on the bottom of the kayak, spraying paint on the bottom of the kayak, and then drying it.

[0089] Compared with related technologies, the present invention provides a kayak processing technology for competitions, which has the following beneficial effects:

[0090] The present invention provides a kayak processing process for competitions, in which the kayak can be limited by the first adsorption device 4 and the second adsorption device 5 at the top and the bottom, making it convenient for the upper and lower groups of spraying equipment 3 to spray paint on the upper and lower sides of the kayak surface. There is no need to manually flip the kayak, and the painting work of the kayak can be completed inside the paint spray box 1, which reduces the labor intensity of the operators, alleviates the harm of the paint to the operators, and improves the practicality and safety of the device.

[0091] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention description and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A kayak processing technology for competition, characterized in that: The following steps are involved: S1: Material preparation and pretreatment; S11: Select carbon fiber prepreg as the main hull material and inspect the carbon fiber prepreg to ensure there are no obvious defects, scratches, or uneven resin distribution. At the same time, prepare high-performance epoxy resin for auxiliary structures and connection parts to ensure the firmness of the connection between components; S12: Clean and pre-treat the mold, use mold cleaner to remove oil and impurities on the mold surface, and then evenly apply release agent on the mold surface to ensure a smooth demoulding process; S2: Hull molding; S21: The hull is made using an autoclave molding process, where the cut carbon fiber prepreg is laid layer by layer in the mold according to the design requirements, and the air between the layers is expelled by rolling. S22: Place the mold with the prepreg laid into the autoclave and perform curing and molding according to a specific heating and pressurizing curve. First, slowly heat it to 80-100°C at a rate of 1-2°C / min and keep it warm for 10-15 minutes to allow the resin to initially flow and infiltrate the fibers. Then continue to heat it to 120-150°C while applying a pressure of 0.5-0.8MPa. Keep it warm and pressurized for 60-90 minutes to fully cure the resin and form a stable carbon fiber composite material structure. S3: Deck production and installation; S31: The deck is made using a vacuum bag molding process. Carbon fiber fabric and epoxy resin system that matches the hull are selected. The carbon fiber fabric is cut according to the designed shape, and a release cloth, carbon fiber fabric, and guide net are laid on the mold in sequence. The mold is then sealed with a vacuum bag. The air in the vacuum bag is extracted by a vacuum pump, so that the carbon fiber fabric fits tightly to the mold under negative pressure, and excess resin is discharged to improve the density and strength of the deck. The deck is cured at 60-80°C for 2-3 hours to obtain a formed deck. S32: Install the prepared deck onto the hull. Apply high-performance epoxy resin glue evenly to the joints between the hull and the deck. Then, accurately align the deck and secure it to the hull using a clamp. Ensure the joints fit tightly and without gaps. Keep the clamps stable during the curing process to allow the epoxy resin to fully cure and form a strong connection. S4: Detail processing and accessories installation; S41: Surface grinding of the formed kayak hull and deck to remove burrs and defects on the surface. After grinding, the kayak is painted. S42: Install seat, footrests and oarlock accessories; S5: Quality inspection; S51: Perform appearance inspection, observe the surface of the kayak, and promptly repair or rework any appearance defects found; S52: Use ultrasonic flaw detectors to inspect the kayak's hull and deck for internal defects, checking for delamination and looseness. For any internal defects detected, local repairs or scrapping will be performed depending on the severity of the defects. S53: Conduct a static load test, applying a static load simulating the athlete's weight and the maximum force during paddling to the kayak. Continue loading for 1-2 hours and observe the kayak for deformation and cracking. For kayaks that deform beyond the design requirements or crack, analyze the causes and make improvements. S54: Conduct water tests, place the kayak in the water, and perform paddling tests to evaluate the kayak's stability, maneuverability, and speed performance indicators. Based on the water test results, optimize and adjust the kayak's performance.

2. A kayak processing technology for competition according to claim 1, characterized in that: In the step S4, a paint spraying device is required, and the paint spraying device includes a paint spraying box; Moving parts, two groups of moving parts are respectively arranged on both sides of the interior of the paint spraying box, and a spraying device is provided on the surface of the moving parts. The moving parts are used to drive the spraying device to move, and the spraying device is used to paint the kayak inside the paint spraying box; A first adsorption device, multiple groups of the first adsorption devices are respectively arranged at the top of the interior of the paint spray box, and multiple groups of second adsorption devices are arranged at the bottom of the interior of the paint spray box. The first adsorption device and the second adsorption device are used to limit the kayak.

3. A kayak processing technology for competition according to claim 2, characterized in that: The moving component includes a limiting rod, a threaded rod and a driving member, the driving member is fixedly installed on one side of the outer surface of the paint spray box, the threaded rod is fixedly connected to the output shaft end of the driving member, and the limiting rod is fixedly installed on the other side inside the paint spray box.

4. A kayak processing technology for competition according to claim 3, characterized in that: The spraying equipment includes a movable plate, a threaded hole, a sliding hole, a feed pipe and a spray nozzle. The movable plate is arranged on the outer surface of the threaded rod, the threaded hole is opened on one side of the outer surface of the movable plate, and the sliding hole is opened on the other side of the outer surface of the movable plate. The feed pipe is fixedly connected to the top of the movable plate, and multiple spray nozzles are respectively arranged at the bottom of the feed pipe.

5. The process for processing a competition kayak according to claim 2, characterized in that: The second adsorption device includes a lifting member, a support block, a support tube, a suction cup and a ventilation pipe. The lifting member is fixedly installed on the outer surface of the paint spray box, the support block is fixedly installed on the output shaft end of the lifting member, the support tube is fixedly installed on one side inside the support block, the suction cup is fixedly connected to one end of the support tube, and the ventilation pipe is fixedly connected to the other end of the support tube.

6. The process for processing a kayak for competition according to claim 4, characterized in that: The feed pipe is made of a corrugated pipe material, extends into the interior of the movable plate and is placed horizontally, and multiple spray nozzles can be installed equidistantly on the surface of the feed pipe. The other end of the feed pipe is connected to a material pump and a feed storage box for feeding.

7. The process for processing a racing kayak according to claim 5, characterized in that: The support tube is made of metal, the ventilation tube is made of corrugated tube, and the support tube and the ventilation tube are connected.

8. The process for processing a competition kayak according to claim 5, characterized in that: The bottom end of the ventilation pipe is connected to an air pump.

9. The process for processing a kayak for competition according to claim 4, characterized in that: The movable plate is threadedly engaged with the outer surface of the threaded rod through the threaded hole, and the movable plate is slidably installed on the outer surface of the limiting rod through the sliding hole.

10. The process for processing a racing kayak according to claim 2, characterized in that: A box door is mounted on one side of the front of the paint spray box via a hinge.

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