Integrated production process for high-performance carbon fiber rocket based on multi-material compounding
By using a multi-material composite carbon fiber arrow integrated production process, and by cutting carbon fiber strips of different widths and wrapping them with resin in a specific way, the problem of low strength of carbon fiber arrows is solved, and the strength of the arrow shaft and flight stability are improved.
Patent Information
- Application Number
- CN202511479683.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-16
- Publication Date
- 2026-01-20
AI Technical Summary
The existing carbon fiber arrow manufacturing process is flawed, resulting in arrows with low strength and easy damage.
The high-performance carbon fiber arrow is produced using a multi-material composite integrated manufacturing process. This involves cutting inner, middle, and outer carbon fiber tapes of different widths and winding them onto the core tube in a specific direction and density. Resin treatment is then applied to enhance adhesion, and finally, precise heat treatment is performed for curing.
It improves the strength and rigidity of the arrow shaft, reduces the risk of breakage and damage during use, and ensures the stability and torsional resistance of the arrow shaft during flight.
Smart Images
Figure CN121361220A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of carbon fiber arrow, and particularly relates to a high-performance carbon fiber arrow integrated production process based on multi-material composite. BACKGROUND
[0002] The carbon fiber arrow is generally made of carbon fiber winding, and generally comprises an inner layer and an outer layer. After the multi-layer carbon fiber winding, the arrow shaft is formed. The arrow has good strength and rigidity, and is widely used.
[0003] The high-performance carbon fiber arrow based on composite material refers to the arrow shaft comprising the carbon fiber layer and the arrow shaft formed by the resin, or other materials can be mixed in the carbon fiber layer to obtain corresponding mechanical properties or corresponding functions. Therefore, the high-performance carbon fiber arrow based on composite material is still made by winding.
[0004] In the prior art, the winding mode of the carbon fiber belt in the production process is unreasonable, which causes the low strength of the carbon fiber arrow. In addition, the production process of the carbon fiber arrow in the prior art is unreasonable, and the carbon fiber arrow is easily damaged in the long-term use.
[0005] Therefore, the prior art has the technical problem of unreasonable production process of the carbon fiber arrow. SUMMARY
[0006] The present application provides a high-performance carbon fiber arrow integrated production process based on multi-material composite, which solves the technical problem of unreasonable production process of the carbon fiber arrow in the prior art.
[0007] Some embodiments for solving the above technical problems include: A high-performance carbon fiber arrow integrated production process based on multi-material composite comprises the following steps: cutting the inner layer carbon fiber winding belt; cutting the middle layer carbon fiber winding belt, the width of the middle layer carbon fiber winding belt being greater than the width of the inner layer carbon fiber winding belt; cutting the outer layer carbon fiber winding belt, the width of the outer layer carbon fiber winding belt being greater than the width of the middle layer carbon fiber winding belt; immersing the inner layer carbon fiber winding belt, the middle layer carbon fiber winding belt and the outer layer carbon fiber winding belt after cutting in the resin, and preparing the inner layer winding belt, the middle layer winding belt and the outer layer winding belt after immersion; winding the inner layer winding belt on the core pipe, and gradually increasing the winding density of the inner layer winding belt from both ends to the middle; winding the middle layer winding belt outside the inner layer winding belt, gradually increasing the winding density of the middle layer winding belt outside the inner layer winding belt from both ends to the middle, and winding the inner layer winding belt and the outer layer winding belt in opposite directions; The outer layer of wrapping is wound outside the middle layer of wrapping, the outer layer of wrapping and the middle layer of wrapping are wound in opposite directions, the outer layer of wrapping is wound outside the middle layer of wrapping at a uniform winding density, and a blank is prepared; After the blank is cured, the core pipe is removed to prepare a carbon fiber arrow.
[0008] Preferably, the blank curing after the blank is cured includes the following steps: Excess resin on the outer wall of the blank is removed; The blank after the excess resin is removed is heated to 90°C at a rate of 1.2°C per minute, and after heating to 90°C, it is kept for at least 20 minutes; The blank after being kept at 90°C for at least 20 minutes is heated to 130°C at a rate of 0.8°C per minute, and after heating to 130°C, it is kept for at least 30 minutes; The blank after being kept at 130°C for at least 30 minutes is cooled to a temperature 10°C higher than room temperature at a cooling rate of 1.6°C per minute, and after cooling to 10°C higher than room temperature, it is kept for no less than 3 minutes; The blank after being kept at a temperature 10°C higher than room temperature for no less than 3 minutes is cooled to room temperature to complete the curing of the blank.
[0009] Preferably, the blank after the excess resin is removed is heated to 90°C at a rate of 1.2°C per minute, and after heating to 90°C, it is kept for at least 20 minutes, wherein the length of time kept after heating to 90°C is determined according to the width of the inner layer of carbon fiber wrapping, when the width of the inner layer of carbon fiber wrapping is less than 3mm, the length of time kept after heating to 90°C is no less than 35 minutes, and when the width of the inner layer of carbon fiber wrapping is greater than or equal to 3mm, the length of time kept after heating to 90°C is controlled to be between 20 minutes and 35 minutes.
[0010] Preferably, the blank after being kept at 90°C for at least 20 minutes is heated to 130°C at a rate of 0.8°C per minute, and after heating to 130°C, it is kept for at least 30 minutes; wherein the length of time kept after heating to 130°C is determined according to the width of the inner layer of carbon fiber wrapping, when the width of the inner layer of carbon fiber wrapping is less than 3mm, the length of time kept after heating to 130°C is no less than 50 minutes, and when the width of the inner layer of carbon fiber wrapping is greater than or equal to 3mm, the length of time kept after heating to 130°C is controlled to be between 30 minutes and 50 minutes.
[0011] Preferably, the blank after being kept in an environment of 10°C higher than room temperature for at least 30 minutes is cooled down to a temperature 10°C higher than room temperature at a cooling rate of 1.6°C per minute, and kept at a temperature 10°C higher than room temperature for no less than 3 minutes after being cooled down to a temperature 10°C higher than room temperature, and the keeping time after being cooled down to a temperature 10°C higher than room temperature is determined according to the width of the inner layer carbon fiber wrapping tape, and when the width of the inner layer carbon fiber wrapping tape is less than 3mm, the keeping time after being cooled down to a temperature 10°C higher than room temperature is no less than 5 minutes, and when the width of the inner layer carbon fiber wrapping tape is greater than or equal to 3mm, the keeping time after being cooled down to a temperature 10°C higher than room temperature is controlled between 3 minutes and 5 minutes.
[0012] Preferably, the cooling of the blank to room temperature to complete the curing of the blank after being kept in an environment of 10°C higher than room temperature for no less than 3 minutes is completed by air cooling the blank kept in an environment of 10°C higher than room temperature for no less than 3 minutes with air flow at room temperature.
[0013] Preferably, the width of the inner layer carbon fiber wrapping tape is no less than 1 / 2 of the width of the middle layer carbon fiber wrapping tape.
[0014] Preferably, the width of the middle layer carbon fiber wrapping tape is less than 2 / 3 of the width of the outer layer carbon fiber wrapping tape.
[0015] Preferably, the wrapping density of the middle layer wrapping tape at a corresponding position with the inner layer wrapping tape is equal.
[0016] Preferably, the inner layer carbon fiber wrapping tape, the middle layer carbon fiber wrapping tape and the outer layer carbon fiber wrapping tape after being cut are immersed in resin, and the inner layer wrapping tape, the middle layer wrapping tape and the outer layer wrapping tape are obtained after the immersion is completed, and the excess resin of the inner layer wrapping tape, the middle layer wrapping tape and the outer layer wrapping tape is scraped off at the same time when the inner layer wrapping tape, the middle layer wrapping tape and the outer layer wrapping tape are taken out.
[0017] Compared with the prior art, the present application has the following advantages: By gradually increasing the wrapping density of the inner layer wrapping tape and the middle layer wrapping tape from both ends to the middle of the core pipe, the middle part of the arrow shaft can withstand greater force, because the middle part of the arrow shaft is the main force bearing area during archery. By increasing the wrapping density of the middle part, the strength of this area is improved, and the risk of breaking due to excessive force during launching is reduced.
[0018] The width of the middle layer carbon fiber wrapping tape is greater than the width of the inner layer carbon fiber wrapping tape, and the width of the outer layer carbon fiber wrapping tape is greater than the width of the middle layer carbon fiber wrapping tape. The combination of multiple layers of wrapping tapes with different widths can share a part of the external force, thereby enhancing the overall damage resistance of the arrow shaft.
[0019] The inner layer of the carbon fiber band and the outer layer of the carbon fiber band are wound in opposite directions, and the middle layer of the carbon fiber band and the outer layer of the carbon fiber band are also wound in opposite directions. The opposite winding method can effectively offset the force received by the arrow shaft in different directions, thereby improving the torsional stiffness and bending stiffness of the arrow shaft. When the arrow is subjected to external forces such as air flow during flight, the opposite winding can prevent the arrow shaft from being excessively twisted or bent, thereby ensuring the stability of flight.
[0020] After the inner layer of the carbon fiber band, the middle layer of the carbon fiber band and the outer layer of the carbon fiber band are cut, they are immersed in resin. The resin can protect the carbon fiber from external environmental factors such as moisture and oxidation. At the same time, the resin can also enhance the bonding force between the carbon fibers, so that the layers of the band are better combined together, and the damage caused by the separation between the layers during use is reduced. For example, during long-term storage or frequent use, the resin can effectively prevent the carbon fiber from becoming brittle or falling off due to environmental factors.
[0021] The outer layer of the carbon fiber band is wound uniformly outside the middle layer of the carbon fiber band. This uniform winding method allows the outer layer to uniformly bear external forces, thereby avoiding the problem of stress concentration caused by local over-tight or over-loose winding. During the flight of the arrow, uniform stress on the outer layer can ensure the stability of the arrow shaft and reduce vibration and deviation caused by uneven stress. BRIEF DESCRIPTION OF DRAWINGS
[0022] For purposes of explanation, numerous implementations of the inventive technology are set forth in the following description. The following drawings are incorporated herein and constitute part of the detailed description. In some instances, well-known structures and devices are shown in block diagram form in order to avoid obscuring the inventive concept of the subject technology.
[0023] Figure 1 Flowchart of the present application. DETAILED DESCRIPTION
[0024] The specific embodiments shown are intended to be illustrative of the various configurations of the subject technology and are not intended to limit the scope of the subject technology. The specific embodiments include specific details for the purposes of providing a thorough understanding of the subject technology. However, it will be apparent to those skilled in the art that the subject technology can be practiced without these specific details.
[0025] It can be understood that, in this document, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action, without necessarily implying any actual relationship or order between such entities or actions.
[0026] The terms "comprise", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element preceded by "comprises a" does not, without more constraints, foreclose the existence of additional identical elements in the process, method, article, or apparatus that comprises the recited element.
[0027] Referring to Figure 1 The high-performance carbon fiber arrow integrated production process based on multi-material composite shown includes the following steps: Cutting the inner layer carbon fiber tape; Cutting the middle layer carbon fiber tape, the width of the middle layer carbon fiber tape being greater than the width of the inner layer carbon fiber tape; Cutting the outer layer carbon fiber tape, the width of the outer layer carbon fiber tape being greater than the width of the middle layer carbon fiber tape; Immersing the inner layer carbon fiber tape, the middle layer carbon fiber tape and the outer layer carbon fiber tape after cutting in the resin, and obtaining the inner layer tape, the middle layer tape and the outer layer tape after immersion; Winding the inner layer tape on the core pipe, the winding density of the inner layer tape on the core pipe gradually increasing from both ends to the middle; Winding the middle layer tape outside the inner layer tape, the winding density of the middle layer tape outside the inner layer tape gradually increasing from both ends to the middle, the winding direction of the inner layer tape being opposite to that of the outer layer tape; Winding the outer layer tape outside the middle layer tape, the winding direction of the outer layer tape being opposite to that of the middle layer tape, the outer layer tape being wound outside the middle layer tape at a uniform winding density, and obtaining the blank; After curing the blank, removing the core pipe to obtain the carbon fiber arrow.
[0028] The resin is a common resin used for producing carbon fiber arrow shafts.
[0029] In some embodiments, the curing of the blank after the blank is cured includes the following steps: Removing the excess resin from the outer wall of the blank; Raising the temperature of the blank after removing the excess resin to 90°C at a rate of 1.2°C per minute, and maintaining the temperature at 90°C for at least 20 minutes; Raising the temperature of the blank after maintaining the temperature at 90°C for at least 20 minutes to 130°C at a rate of 0.8°C per minute, and maintaining the temperature at 130°C for at least 30 minutes; Lowering the temperature of the blank after maintaining the temperature at 130°C for at least 30 minutes to a temperature 10°C higher than room temperature at a rate of 1.6°C per minute, and maintaining the temperature 10°C higher than room temperature for no less than 3 minutes; The blank is cooled to room temperature after being kept in an environment of 10℃ higher than room temperature for not less than 3 minutes to complete the curing of the blank.
[0030] In some embodiments, preferably, the blank after the removal of excess resin is heated to 90℃ at a rate of 1.2℃ per minute, and kept at 90℃ for at least 20 minutes after being heated to 90℃, wherein the length of time for keeping after being heated to 90℃ is determined according to the width of the inner layer carbon fiber wrapping tape, when the width of the inner layer carbon fiber wrapping tape is less than 3mm, the length of time for keeping after being heated to 90℃ is not less than 35 minutes, and when the width of the inner layer carbon fiber wrapping tape is greater than or equal to 3mm, the length of time for keeping after being heated to 90℃ is controlled between 20 minutes and 35 minutes.
[0031] In some embodiments, the blank after being kept in an environment of 90℃ for at least 20 minutes is heated to 130℃ at a rate of 0.8℃ per minute, and kept at 130℃ for at least 30 minutes after being heated to 130℃; wherein the length of time for keeping after being heated to 130℃ is determined according to the width of the inner layer carbon fiber wrapping tape, when the width of the inner layer carbon fiber wrapping tape is less than 3mm, the length of time for keeping after being heated to 130℃ is not less than 50 minutes, and when the width of the inner layer carbon fiber wrapping tape is greater than or equal to 3mm, the length of time for keeping after being heated to 130℃ is controlled between 30 minutes and 50 minutes.
[0032] In some embodiments, the blank after being kept in an environment of 130℃ for at least 30 minutes is cooled to a temperature of 10℃ higher than room temperature at a rate of 1.6℃ per minute, and kept at a temperature of 10℃ higher than room temperature for not less than 3 minutes after being cooled to a temperature of 10℃ higher than room temperature, wherein the length of time for keeping after being cooled to a temperature of 10℃ higher than room temperature is determined according to the width of the inner layer carbon fiber wrapping tape, when the width of the inner layer carbon fiber wrapping tape is less than 3mm, the length of time for keeping after being cooled to a temperature of 10℃ higher than room temperature is not less than 5 minutes, and when the width of the inner layer carbon fiber wrapping tape is greater than or equal to 3mm, the length of time for keeping after being cooled to a temperature of 10℃ higher than room temperature is controlled between 3 minutes and 5 minutes.
[0033] In some embodiments, in the process of cooling the blank to room temperature after being kept in an environment of 10℃ higher than room temperature for not less than 3 minutes to complete the curing of the blank, air flow at a temperature equal to room temperature is used to air-cool the blank after being kept in an environment of 10℃ higher than room temperature for not less than 3 minutes.
[0034] In some embodiments, the width of the inner layer carbon fiber wrapping tape is not less than 1 / 2 of the width of the middle layer carbon fiber wrapping tape.
[0035] In some embodiments, the width of the middle layer carbon fiber wrapping tape is less than 2 / 3 of the width of the outer layer carbon fiber wrapping tape.
[0036] It can be understood that the specific width of the inner layer carbon fiber tape and the middle layer carbon fiber tape is not limited, and can be reasonably determined according to actual needs.
[0037] In some embodiments, the winding density of the middle layer tape at the corresponding position of the inner layer tape is equal.
[0038] In some embodiments, the inner layer carbon fiber tape, the middle layer carbon fiber tape and the outer layer carbon fiber tape after cutting are immersed in resin, and after immersion, the inner layer tape, the middle layer tape and the outer layer tape are obtained, wherein the excess resin of the inner layer tape, the middle layer tape and the outer layer tape is scraped off at the same time as the inner layer tape, the middle layer tape and the outer layer tape are taken out.
[0039] It can be understood that, in order to take out the inner layer tape, the inner layer tape can pass through a gap when it is taken out of the resin, and the structures on both sides of the gap are used to scrape off the excess resin on the inner layer tape. The taking-out mode of the middle layer tape and the outer layer tape is referred to the inner layer tape.
[0040] The above introduces the subject technical solution of the application and the corresponding details. It can be understood that the above introduction is only some embodiments of the subject technical solution of the application, and some details can be omitted during specific implementation.
[0041] In addition, in some embodiments of the above application, a plurality of embodiments can be combined for implementation, and various combination schemes are not listed one by one due to the length of the article. Those skilled in the art can freely combine the above embodiments according to the needs during specific implementation to obtain better application experience.
[0042] Those skilled in the art can obtain other detailed configurations or drawings during implementation of the subject technical solution of the application according to the subject technical solution of the application and the drawings. It is obvious that these details still belong to the scope covered by the subject technical solution of the application without departing from the subject technical solution of the application.
Claims
1. A high-performance carbon fiber arrow integrated production process based on multi-material composite, characterized in that, The method comprises the following steps: cutting an inner layer carbon fiber tape; cutting a middle layer carbon fiber tape, the width of the middle layer carbon fiber tape being greater than that of the inner layer carbon fiber tape; cutting an outer layer carbon fiber tape, the width of the outer layer carbon fiber tape being greater than that of the middle layer carbon fiber tape; immersing the inner layer carbon fiber tape, the middle layer carbon fiber tape and the outer layer carbon fiber tape in resin after cutting; obtaining an inner layer tape, a middle layer tape and an outer layer tape after immersion; winding the inner layer tape around a core pipe, the winding density of the inner layer tape gradually increasing from both ends to the middle; winding the middle layer tape outside the inner layer tape, the winding density of the middle layer tape gradually increasing from both ends to the middle outside the inner layer tape, the winding direction of the inner layer tape being opposite to that of the outer layer tape; winding the outer layer tape outside the middle layer tape, the winding direction of the outer layer tape being opposite to that of the middle layer tape, the outer layer tape being wound outside the middle layer tape at a uniform winding density, and obtaining a blank; and obtaining a carbon fiber arrow after removing the core pipe after curing of the blank.
2. The multi-material composite based high performance carbon fiber arrow integrated production process according to claim 1, wherein, The blank curing comprises the following steps: removing excess resin from the outer wall of the blank; increasing the temperature of the blank after removing the excess resin to 90 DEG C at a rate of 1.2 DEG C per minute, keeping the temperature at 90 DEG C for at least 20 minutes; increasing the temperature of the blank kept at 90 DEG C for at least 20 minutes to 130 DEG C at a rate of 0.8 DEG C per minute, keeping the temperature at 130 DEG C for at least 30 minutes; decreasing the temperature of the blank kept at 130 DEG C for at least 30 minutes to a temperature 10 DEG C higher than room temperature at a rate of 1.6 DEG C per minute, keeping the temperature at a temperature 10 DEG C higher than room temperature for not less than 3 minutes; and cooling the blank kept at a temperature 10 DEG C higher than room temperature for not less than 3 minutes to room temperature to complete the curing of the blank.
3. The multi-material composite based high performance carbon fiber arrow integrated production process according to claim 2, characterized in that: The blank after removing the excess resin is increased to 90 DEG C at a rate of 1.2 DEG C per minute, and the temperature is kept at 90 DEG C for at least 20 minutes, wherein the keeping time after increasing the temperature to 90 DEG C is determined according to the width of the inner layer carbon fiber tape, when the width of the inner layer carbon fiber tape is less than 3 mm, the keeping time after increasing the temperature to 90 DEG C is not less than 35 minutes, and when the width of the inner layer carbon fiber tape is greater than or equal to 3 mm, the keeping time after increasing the temperature to 90 DEG C is controlled to be between 20 minutes and 35 minutes.
4. The multi-material composite based high performance carbon fiber arrow integrated production process according to claim 2, characterized in that: The blank kept at 90 DEG C for at least 20 minutes is increased to 130 DEG C at a rate of 0.8 DEG C per minute, and the temperature is kept at 130 DEG C for at least 30 minutes; wherein the keeping time after increasing the temperature to 130 DEG C is determined according to the width of the inner layer carbon fiber tape, when the width of the inner layer carbon fiber tape is less than 3 mm, the keeping time after increasing the temperature to 130 DEG C is not less than 50 minutes, and when the width of the inner layer carbon fiber tape is greater than or equal to 3 mm, the keeping time after increasing the temperature to 130 DEG C is controlled to be between 30 minutes and 50 minutes.
5. The multi-material composite based high performance carbon fiber arrow integrated production process according to claim 2, wherein: The blank maintained at 130℃ for at least 30 minutes is cooled to a temperature 10℃ higher than room temperature at a cooling rate of 1.6℃ per minute, and maintained at a temperature 10℃ higher than room temperature for no less than 3 minutes, wherein the maintaining time after cooling to a temperature 10℃ higher than room temperature is determined according to the width of the inner layer carbon fiber wrapping tape, and when the width of the inner layer carbon fiber wrapping tape is less than 3mm, the maintaining time after cooling to a temperature 10℃ higher than room temperature is no less than 5 minutes, and when the width of the inner layer carbon fiber wrapping tape is greater than or equal to 3mm, the maintaining time after cooling to a temperature 10℃ higher than room temperature is controlled to be between 3 minutes and 5 minutes.
6. The multi-material composite based high performance carbon fiber arrow integrated production process according to claim 2, characterized in that: The blank maintained at a temperature 10℃ higher than room temperature for no less than 3 minutes is cooled to room temperature to complete the curing of the blank, and air flow at a temperature equal to room temperature is used to air-cool the blank maintained at a temperature 10℃ higher than room temperature for no less than 3 minutes.
7. The multi-material composite based high performance carbon fiber arrow integrated production process according to claim 1, characterized in that: The width of the inner layer carbon fiber wrapping tape is no less than 1 / 2 of the width of the middle layer carbon fiber wrapping tape.
8. The multi-material composite based high performance carbon fiber arrow integrated production process according to claim 1, characterized in that: The width of the middle layer carbon fiber wrapping tape is less than 2 / 3 of the width of the outer layer carbon fiber wrapping tape.
9. The multi-material composite based high performance carbon fiber arrow integrated production process according to claim 1, characterized in that: The wrapping density of the middle layer wrapping tape at a corresponding position of the inner layer wrapping tape is equal.
10. The multi-material composite based high performance carbon fiber arrow integrated production process according to claim 1, characterized in that: The inner layer carbon fiber wrapping tape, the middle layer carbon fiber wrapping tape and the outer layer carbon fiber wrapping tape after cutting are immersed in resin, and after immersion, the inner layer wrapping tape, the middle layer wrapping tape and the outer layer wrapping tape are obtained, wherein the inner layer wrapping tape, the middle layer wrapping tape and the outer layer wrapping tape are taken out at the same time, and the excess resin of the inner layer wrapping tape, the middle layer wrapping tape and the outer layer wrapping tape is scraped off.