Fiber tubular member, mold and method of manufacture thereof

Abstract

The present disclosure provides a fiber tubular member, a mold and a manufacturing method thereof. The mold for manufacturing the fiber tubular member includes: an upper mold plate including an upper forming groove; a lower mold plate including a lower forming groove; and a rigid core rod, wherein a printing groove is formed on a surface of at least one of the upper forming groove and the lower forming groove, a printing stamp for forming a pattern or a character on a surface of the fiber tubular member is installed in the printing groove, and the printing stamp includes an installation bar for being embedded in the printing groove, and a forming protrusion and a recess for forming the pattern or the character.

Description

Technical Field

[0001] This disclosure belongs to the field of fiber tubing technology, specifically relating to a fiber tubular component, its mold, and its preparation method. Background Technology

[0002] As is well known, existing fiber tubular components (tubes) include carbon fiber tubular components, glass fiber tubular components, and graphite fiber tubular components. Due to their advantages such as light weight, high strength, good toughness, strong shock resistance, and corrosion resistance, fiber tubular components have gradually replaced aluminum alloy tubular components and are used in an increasing number of fields, such as: manufacturing fishing rods, clothing racks, bicycles, and interior decorative profiles. Existing methods for preparing fiber tubular components with patterns or trademarks on the surface include the following steps: 1) winding a fiber prepreg onto a mandrel; 2) then winding a release tape; 3) placing it in a curing oven for high-temperature baking; 4) removing the mandrel from the mold and removing the release tape to obtain the tubular component; 5) printing the desired patterns or trademarks on the surface of the tubular component using a tube-specific printing machine; 6) applying paint or spraying a protective layer to the surface of the tubular component to obtain the fiber tubular component with patterns or trademarks.

[0003] However, existing methods for manufacturing fiber tubular components with patterns, designs, or trademarks on their surfaces are prone to damage to the protective layer due to abrasion. This damage to the surface patterns or trademarks compromises the appearance of the tubular components and the products made from them, affecting their aesthetic quality. Products made from fiber tubular components, such as fiber fishing rods, carbon fiber bicycles, and decorative profiles, inevitably experience scratches and collisions during production and use. Damage to the protective layer can cause patterns or trademarks to detach from the tubular component, thus compromising its appearance and aesthetics. To address these issues, existing technologies use paint application or spraying to form the protective layer; however, these processes are complex, increasing workload, wasting raw materials, and raising manufacturing costs. Summary of the Invention

[0004] In order to overcome the shortcomings of the prior art, the purpose of this disclosure is to provide a mold and method for preparing carbon fiber tubes with text or patterns. The preparation method of the above mold is simple and convenient, and the resulting fiber tubes have patterns that are not easily damaged, have a long service life, and are aesthetically pleasing.

[0005] To achieve the above objectives, the present disclosure adopts the following technical solution: The first aspect of this disclosure provides a mold for preparing fibrous tubular components, the mold comprising: Upper template, the upper template including an upper forming groove; Lower template, the lower template including a lower forming groove; and A rigid mandrel, the upper forming groove, the lower forming groove, and the rigid mandrel together constitute the forming cavity of the fiber tubular component. At least one of the upper forming groove and the lower forming groove has a printing groove formed on its surface, and a printing stamp block for forming patterns or text on the surface of the fibrous tubular component is installed in the printing groove. The printed stamp block includes a mounting strip for embedding into the printing groove, and shaped protrusions and recesses for forming the pattern or text.

[0006] In some embodiments, the mounting strip is integrally connected to the shaped protrusions and recesses.

[0007] In some embodiments, the height of the shaped protrusion is 2-3 mm.

[0008] A second aspect of this disclosure provides a method for preparing fibrous tubular components using the mold described in the first aspect, the method comprising: S1 uses a resin material to impregnate the fiber cloth to obtain a pre-impregnated fiber cloth; S2 cuts the pre-impregnated fiber cloth according to the shape of the shaped protrusion to form a cut pre-impregnated fiber cloth with a contour corresponding to the shape of the shaped protrusion. S3. The pre-impregnated fiber cloth is wound around a rigid mandrel and laid out in accordance with the shape of the upper forming groove of the upper template and the lower forming groove of the lower template. The pre-impregnated fiber cloth is laid out on the surface of the upper forming groove and / or the lower forming groove where the printing stamp has a block, so that the forming protrusion of the printing stamp protrudes from the surface of the pre-impregnated fiber cloth. S4 closes the mold having the upper template, the mandrel, and the lower template, and cures, cools, and demolds the pre-impregnated fiber and the cut pre-impregnated fiber cloth to obtain a tubular blank with a graphic portion corresponding to the pattern or text to be formed; and S5 uses colored resin material to fill the graphic portion of the tubular blank to obtain the fibrous tubular part with a pattern or text.

[0009] In some embodiments, the curing temperature is 110-175°C, and the curing time is 1 to 3 hours.

[0010] In some embodiments, prior to the curing process, the recesses of the printed stamp block are filled with the resin material.

[0011] In some embodiments, prior to step S5, a graphic module is inserted into the graphic portion of the tubular blank. The graphic module has a shape that matches the graphic portion and contains colored patterns or text.

[0012] In some embodiments, after step S5, the fiber tubular part with the pattern or text is polished so that the filled pattern or text is flush with the surface of the fiber tubular part.

[0013] In some embodiments, after step S5, the colored resin material is vibrated to fill the patterned portion of the tubular blank with the colored resin material.

[0014] A third aspect of this disclosure provides a fibrous tubular member having a pattern or text on its outer wall, wherein the fibrous tubular member is prepared by the method according to the second aspect.

[0015] Compared with the prior art, this disclosure has the following beneficial effects: (1) This disclosure uses a mold with a printing stamp to prepare fiber tubular parts, which can form trademarks or patterns and other textual information on the outer wall of the carbon fiber tubular parts. Since the printing stamp is installed in the printing groove, those skilled in the art can freely replace the printing stamp with different trademarks or patterns and other textual information as needed, and can realize the arrangement of different trademarks or patterns and other textual information in different positions. Therefore, by using the mold with the above structure, the process of preparing fiber tubular parts with textual information becomes simple and convenient, and the pattern on the outer wall of the obtained tubular parts is not easily damaged, has a long service life, and is aesthetically pleasing.

[0016] (2) By making the mounting strip of the printing stamp block integrated with the forming protrusion and recess, it is easy to position the text information formed by the forming protrusion and recess, and avoid the forming protrusion falling off during the forming process.

[0017] (3) By setting the height of the forming protrusion to 2-3 mm, the forming protrusion of the printed stamp block can protrude from the surface of the pre-impregnated fiber cloth after cutting when the pre-impregnated fiber cloth is laid in the subsequent process. Without affecting the mechanical properties of the fiber tubular parts, the trademarks or patterns and other text information on the surface of the fiber tubular parts are clearer and less prone to wear, thus improving the durability and aesthetics of the tubular parts.

[0018] (4) During the preparation of the fiber tubular part, by using the mold of this disclosure, the text information to be formed on the pre-impregnated fiber cloth is cut before the pre-impregnated fiber cloth is laid. After laying, the forming protrusion of the printed stamp block protrudes from the surface of the pre-impregnated fiber cloth after cutting, avoiding the problem of blurry and unclear text information caused by the fiber impregnated cloth. This makes the trademark or pattern and other text information form an integral structure with the fiber tubular part, thereby making the trademark or pattern and other text information on the surface of the carbon fiber tubular part clearer and less prone to wear, improving the durability and aesthetics of the tubular part. Attached Figure Description

[0019] The accompanying drawings illustrate currently contemplated embodiments of the technology disclosed herein and, together with the description, serve to explain the principles of the technology disclosed herein.

[0020] Figure 1 This is a schematic diagram of the structure of the mold according to the first embodiment of this disclosure; Figure 2 A schematic diagram of the structure of the printing stamp block of the mold disclosed herein is shown; Figure 3 This is a schematic diagram of the structure of the mold according to the second embodiment of this disclosure; Figure 4 This is a schematic diagram of the structure of the mold according to the third embodiment of this disclosure.

[0021] Wherein: 1-Mold; 10-Upper template; 101-Upper forming groove; 20-Lower template; 201-Lower forming groove; 30-Rigid mandrel; 102, 202-Printing groove; 40-Printing stamp block; 401-Mounting strip; 402-Forming protrusion; 403-Recess. Detailed Implementation

[0022] To enable those skilled in the art to better understand the present disclosure, the technical solutions of the present disclosure will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present disclosure, and not all embodiments. Based on the embodiments of the present disclosure, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present disclosure.

[0023] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this disclosure described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0024] When a component is described in the specification as being "on", "fixed" to, "connected" to, or "joined" to another component, the component may be directly located on, fixed to, connected to, joined to, or in contact with the other component, or there may be an intermediate component present.

[0025] Exemplary embodiments of this application will now be described with reference to the accompanying drawings. However, it should be understood that this application can be presented in many different ways and is not limited to the embodiments described below. It should also be understood that the embodiments disclosed herein can be combined in various ways to provide further additional embodiments. Throughout the drawings, the same reference numerals denote the same or functionally identical elements. Figures 1 to 4 A cross-sectional view of a mold according to an embodiment of the present disclosure is shown schematically.

[0026] See Figure 1 and Figure 2 In a first embodiment, the mold for preparing fibrous tubular parts disclosed herein includes an upper mold plate 10, a lower mold plate 20, and a rigid mandrel 30. An upper molding groove 101 for thermosetting is formed in the upper mold plate 10. A lower molding groove 201 for thermosetting is formed in the lower mold plate 20. The upper molding groove 101 and the lower molding groove 201 have symmetrical shapes. When the mold is closed, the upper molding groove 101, the lower molding groove 201, and the rigid mandrel 30 together constitute a tubular forming cavity for the curing and forming of the fibrous tubular parts. During molding, the rigid mandrel 30 serves as an internal skeleton during thermosetting, preventing the inner wall of the tubular part from collapsing, bending, or elliptical deforming under gravity or thermal stress, ensuring the straightness and roundness of the tubular part. Furthermore, due to the high rigidity and heat resistance of the rigid mandrel 30, tolerance control of the inner cavity dimensions of the tubular part is achieved, ensuring the smoothness of the inner wall of the tubular part.

[0027] To create durable and non-destructive patterns or trademarks on the outer wall of the tubular component, enhancing its aesthetics, this disclosure further includes a printing stamp 40 within the molding cavity for forming patterns or trademarks on the surface of the fibrous tubular component. Specifically, see [link to documentation]. Figure 1 A printing groove 102 for embedding and mounting the printing stamp block 40 is provided on the surface of the upper forming groove 101 of the upper template 10 of the mold 1. The printing stamp block 40 is embedded and fixedly mounted in the printing groove 102.

[0028] In the mold 1 described above, since the printing stamp block 40 is installed inside the printing groove 102, printing stamp blocks 40 with different text and patterns can be replaced at will, and the text and patterns in different positions can also be arranged. Therefore, the mold with the above structure used in this disclosure produces fiber tubular parts with patterns that are not easily damaged, and have advantages such as long service life and strong aesthetics.

[0029] Furthermore, as an example, Figure 1 Only one printing block 40 is shown in the figure. However, the number of printing blocks 40 is not limited to one. Those skilled in the art can increase the number of printing slots and printing blocks as needed, and can also change the position of printing slots and printing blocks as needed. Corresponding embodiments will be shown in the following description.

[0030] Reference Figure 2 The printing stamp block 40 includes a mounting strip 401, a shaped protrusion 402, and a recess 403. The shape of the mounting strip 401 corresponds to the shape of the printing groove 102, thereby allowing the printing stamp block 40 to be embedded and fixedly installed within the printing groove 102. The mounting strip 401 has shaped protrusions 402 and recesses 403 for forming text information such as patterns or trademarks. As an example, after forming the protrusions on the mounting strip 401, the text information such as patterns or trademarks to be formed can be etched into the protrusions, thereby forming shaped protrusions 402 and recesses 403 for forming text information such as patterns or trademarks on the mounting strip 401. That is, the recesses 403 correspond to the etched holes and cutouts, and the shaped protrusions 402 are designed to be text information opposite to the text information such as patterns or trademarks to be formed.

[0031] To facilitate the formation of fibrous tubular components with different text and patterns, the mounting strip 401 is integrally connected to the forming protrusion 402 and recess 403. Because the mounting strip 401 is integrally connected to the forming protrusion 402 and recess 403, the printing stamp 40 can be replaced as a whole, thus facilitating the replacement of printing stamps 40 with different trademarks, patterns, and other textual information, and also enabling the arrangement of trademarks, patterns, and other textual information in different positions.

[0032] Specifically, refer to Figure 1 The mold 1 includes an upper mold plate 10, a lower mold plate 20, and a rigid mandrel 30. The upper mold plate 10 and the lower mold plate 20 are respectively provided with an upper forming groove 101 and a lower forming groove 201. After the upper mold plate 10 and the lower mold plate 20 are closed, the upper forming groove 101 and the lower forming groove 201 form a tubular forming cavity with the rigid mandrel 30. A strip-shaped printing groove 102 is provided at the bottom of the upper forming groove 101 of the upper mold plate 10. A printing stamp block 40 is installed in the strip-shaped printing groove 102. The printing stamp block 40 includes an mounting strip 401 and a forming protrusion 402. The forming protrusion 402 and the mounting strip 401 are integrally connected. The mounting strip 401 is inserted into the strip-shaped printing groove 102. The forming protrusion 402 is designed to display trademarks, patterns, and other text information in reverse.

[0033] In some embodiments, the height of the shaped protrusion 402 is 2-3 mm. By setting the shaped protrusion 402 to the above height, the shaped protrusion of the printed stamp block can protrude from the surface of the pre-impregnated fiber cloth when the cut pre-impregnated fiber cloth is subsequently laid.

[0034] Reference Figure 3 The image shows mold 1 according to a second embodiment of the present disclosure. Figures 1 to 2 Compared to the first embodiment shown, the same components are indicated by the same reference numerals.

[0035] and Figure 1 Compared to the first embodiment shown, the printing stamp block 40 of the mold 1 according to the second embodiment of this disclosure is modified to be disposed on the surface of the lower forming groove 201 of the lower template 2. Specifically, a printing groove 202 for embedding and mounting the printing stamp block 40 is formed on the surface of the lower forming groove 201 of the lower template 20 of the mold 1. The printing stamp block 40 is embedded and fixedly mounted in the printing groove 202. Similarly, typically, the printing stamp block 40 includes a mounting strip 401 for embedding in the printing groove 202, and forming protrusions 402 and recesses 403 for forming textual information such as trademarks and patterns.

[0036] Reference Figure 4 This illustrates mold 1 according to a third embodiment of the present disclosure. (And...) Figures 1 to 2 Compared to the first embodiment shown, the same components are indicated by the same reference numerals.

[0037] and Figure 1Compared to the first embodiment shown, the printing stamp block 40 of the mold 1 according to the third embodiment of this disclosure is modified to two, and is respectively disposed on the surface of the upper forming groove 101 of the upper template 10 and the lower forming groove 201 of the lower template 20. Specifically, a printing groove 102 for embedding and mounting the printing stamp block 40 is formed on the surface of the upper forming groove 101 of the upper template 10 of the mold 1, and a printing groove 202 for embedding and mounting the printing stamp block 40 is formed on the surface of the lower forming groove 201 of the lower template 20 of the mold 1. The printing stamp block 40 is embedded and fixedly mounted in the printing grooves 102 and 202 respectively. Similarly, typically, the printing stamp block 40 includes a mounting strip 401 for embedding in the printing groove 202, and a forming protrusion 402 and a recess 403 for forming the pattern or text.

[0038] Therefore, those skilled in the art can change the position of the printing groove and the number of printing stamp blocks 40 according to the text information requirements of the actual product. As an example, in the third embodiment, the printing stamp blocks 40 installed in the printing groove 102 on the surface of the upper forming groove 101 can have a pattern that forms a trademark for a tubular part, while the printing stamp blocks 40 installed in the printing groove 202 on the surface of the lower forming groove 201 can have a pattern that forms a model number for a tubular part.

[0039] A second aspect of this disclosure provides a method for preparing fibrous tubular components using the above-described mold, the method comprising: S1 uses a resin material to impregnate the fiber cloth to obtain a pre-impregnated fiber cloth; S2 cuts the pre-impregnated fiber cloth according to the shape of the shaped protrusion to form a cut pre-impregnated fiber cloth with a contour corresponding to the shape of the shaped protrusion. S3. The pre-impregnated fiber cloth is wound around a rigid mandrel and laid out in accordance with the shape of the upper forming groove of the upper template and the lower forming groove of the lower template. The pre-impregnated fiber cloth is laid out on the surface of the upper forming groove and / or the lower forming groove where the printing stamp has a block, so that the forming protrusion of the printing stamp protrudes from the surface of the pre-impregnated fiber cloth. S4 closes the mold having the upper template, the mandrel, and the lower template, and cures, cools, and demolds the pre-impregnated fiber and the cut pre-impregnated fiber cloth to obtain a tubular blank with a graphic portion corresponding to the pattern or text to be formed; and S5 uses colored resin material to fill the graphic portion of the tubular blank to obtain the fibrous tubular part with a pattern or text.

[0040] It should be noted here that in step S3, when using... Figure 1In the mold 1 of the first embodiment shown, the pre-impregnated fiber cloth after cutting is laid in the upper forming groove 101 of the upper template 10, and the pre-impregnated fiber cloth without cutting is laid in the lower forming groove 201 of the lower template 20.

[0041] In step S3, when using as Figure 3 In the mold 1 of the second embodiment shown, the pre-impregnated fiber cloth after cutting is laid in the lower forming groove 201 of the lower template 20, and the pre-impregnated fiber cloth that has not been cut is laid in the upper forming groove 101 of the upper template 10.

[0042] In step S3, when using as Figure 4 In the mold 1 of the third embodiment shown, the cut pre-impregnated fiber cloth is laid in the upper forming groove 101 of the upper template 10 and the lower forming groove 201 of the lower template 20, respectively, and no uncut pre-impregnated fiber cloth is laid.

[0043] There are no particular restrictions on the type of fiber cloth used here; those skilled in the art can choose according to actual needs. For example, carbon fiber cloth, glass fiber cloth, graphite fiber cloth, etc., can be used. Similarly, there are no particular restrictions on the resin material used; those skilled in the art can choose according to actual needs. For example, commonly used thermosetting resins, such as epoxy resin, can be used.

[0044] In addition, colored resin materials can be the same resin materials used in the impregnation treatment, so that the pattern can be well bonded to the surface of the fibrous tubular parts.

[0045] In some embodiments, depending on the characteristics of the resin material used, the curing temperature is 110-175°C, and the curing time is 1 to 3 hours.

[0046] In some embodiments, after step S5, the fiber tubular part with the pattern or text is polished so that the filled pattern or text is flush with the surface of the fiber tubular part.

[0047] In some embodiments, after step S5, the colored resin material is vibrated to fill the patterned portion of the tubular blank with the colored resin material.

[0048] As an example, a mold using the first embodiment (such as...) is shown here exemplarily. Figure 1 The method for preparing fibrous tubular components includes the following specific steps: (a) Preparation of molding die: The structure of the molding die is as follows Figure 1 As shown, the height of the molded protrusion 402 is 2-3mm; (b) Molding: Using the mold in step (a), wrap 2-5 layers of preimpregnated carbon fiber cloth around the rigid mandrel 30. Then cut the outline of the text or pattern to be formed on the carbon fiber cloth. After cutting, the preimpregnated carbon fiber cloth with the outline of the text or pattern is obtained. Then lay 2-3 layers of preimpregnated carbon fiber cloth in the lower molding groove 201 of the lower template 20. Install the printing stamp block 40 in the printing groove 102 on the upper template 10. Insert the mounting strip 401 of the printing stamp block 40 into the printing groove 102 of the upper molding groove 101. Then lay 2-3 layers of preimpregnated carbon fiber cloth with the outline hole of the text or pattern in the upper molding groove 101. Expose the molding protrusion 402 of the printing stamp block 40. Then close the upper template 10, the rigid mandrel 30 and the lower template 20. After closing the mold, bake in a curing oven at 110-175℃ for 1-3 hours to form. (c) Demolding: After cooling, demold the upper template 10 and rigid mandrel 30. After demolding, the formed tube has graphic parts (grooves) with text or patterns. (d) Filling: Fill the graphic part with text or pattern facing the tube after demolding with colored resin material; (e) Grinding and shaping: After filling, vibration is performed to completely fill the graphic part with colored resin material. After curing and shaping, grinding is performed to make the filled pattern or text flush with the surface of the pipe.

[0049] Furthermore, in some embodiments, the recesses of the printed stamp block are filled with the resin material before the curing process. Specifically, before installing the printed stamp block 40, the internal pores (i.e., recesses 403) of the trademark or pattern and other text information of the molded protrusions 402 of the printed stamp block 40 are filled with resin of the same material as the resin in the pre-impregnated carbon fiber cloth. After demolding, the resin in the internal pores of the trademark or pattern and other text information fuses and cures with the resin of the pre-impregnated carbon fiber cloth and is demolded together.

[0050] In some embodiments, before filling with colored resin material, a graphic insert is inserted into the graphic portion of the tubular blank. The graphic insert has a shape that matches the graphic portion and contains colored patterns or text. Specifically, after demolding, a molded module with colored graphics or text that matches the shape of the graphic portion is inserted into the graphic portion with text or patterns on the tube.

[0051] As an example, a mold using the first embodiment (such as...) is shown here exemplarily. Figure 1 Another method for preparing fibrous tubular components, the specific steps of which are as follows: (a') Preparation of molding die: The structure of the molding die is as follows Figure 1 As shown, the height of the molded protrusion 702 is 2-3mm; (b') Molding: Using the mold in step (a'), wrap 2-5 layers of pre-impregnated carbon fiber cloth around the rigid mandrel 30. Then cut the outline of the text or pattern to be formed on the carbon fiber cloth. After cutting, the pre-impregnated carbon fiber cloth with the outline of the text or pattern is obtained. Then lay 2-3 layers of pre-impregnated carbon fiber cloth in the lower molding groove 201 of the lower template 20. Install the printing stamp block 40 in the printing groove 102 on the upper template 10. Insert the mounting strip 401 of the printing stamp block 40 into the printing groove 102 of the upper molding groove 101. Then lay 2-3 layers of pre-impregnated carbon fiber cloth with the outline hole of the text or pattern in the upper molding groove 101. Expose the molding protrusion 402 of the printing stamp block 40. Then close the upper template 10, rigid mandrel 30 and lower template 20. After closing the mold, bake in a curing oven at 110-175℃ for 1-3 hours to form. (c') Demolding: After cooling, demold the upper template 10 and rigid mandrel 30. After demolding, the formed tube has a graphic part (groove) with text or pattern. Insert the formed module with colored graphics or text that matches the graphic part into the graphic part with text or pattern facing the tube after demolding. (d') Filling: Fill the graphic part with text or pattern facing the tube after demolding with colored resin material; (e') Grinding and shaping: After filling, vibration is performed to completely fill the graphic part with colored resin material. After curing and shaping, grinding is performed to make the filled pattern or text flush with the surface of the pipe.

[0052] As illustrated in the example method above, those skilled in the art can determine, based on actual needs, whether to fill the internal pores (recesses) of the molded raised text or pattern with resin.

[0053] Specifically, in one method, resin can be directly filled into the recess 403 of the printed stamp block 40. After the resin is fused with the resin of the pre-impregnated carbon fiber cloth, it does not come out with the molding protrusion 402, so that a cavity with text or pattern is formed on the outside of the tube, which can then be filled.

[0054] As another method, the recess 403 of the printed stamp block 40 can be left unfilled with resin. The molded protrusion 402 only has the outer outline of text or pattern. When filling, the module with text or pattern is directly inserted into the graphic part and then polished into shape.

[0055] Both of these methods can achieve the inlaying of text or patterns on the outer wall of carbon fiber tubular components. The inlaid text or patterns are integrally connected with the carbon fiber tubular component and are not easily worn.

[0056] This disclosure discloses the fabrication of fibrous tubular components using a mold with a printing stamp, enabling the formation of trademarks or graphic text on the outer wall of the carbon fiber tubular component. Furthermore, by cutting the area of ​​the pre-impregnated fiber cloth to be formed with the text before laying it, the embedded trademarks or graphic text are integrated with the carbon fiber tubular component, making the trademarks or graphic text on the surface of the carbon fiber tubular component less prone to wear and improving the durability and aesthetics of the tubular component.

[0057] Furthermore, since printing stamp blocks are installed within the printing groove, those skilled in the art can freely replace printing stamp blocks with different trademarks or patterns and other textual information as needed, enabling the arrangement of different trademarks or patterns and other textual information in different positions. This disclosure, due to the use of a mold with the above-described structure, simplifies and facilitates the manufacturing process of tubular components, resulting in tubular components with patterns on their outer walls that are less prone to damage, have a long service life, and are aesthetically pleasing.

[0058] The above content is only for illustrating the technical concept of this disclosure and should not be used to limit the scope of protection of this disclosure. Any modifications made to the technical solution based on the technical concept proposed in this disclosure shall fall within the scope of protection of the claims of this disclosure.

Claims

1. A mold (1) for preparing fibrous tubular parts, characterized in that, The mold (1) includes: Upper template (10), the upper template (10) includes an upper forming groove (101); Lower template (20), the lower template (20) including a lower forming groove (201); and The rigid mandrel (30), the upper forming groove (101), the lower forming groove (201) and the rigid mandrel (30) together constitute the forming cavity of the fiber tubular part; Printing grooves (102, 202) are formed on the surface of at least one of the upper forming groove (101) and the lower forming groove (201), and printing stamps (40) for forming patterns or text on the surface of the fibrous tubular member are installed in the printing grooves (102, 202). The printed stamp block (40) includes a mounting strip (401) for embedding into the printing groove (102, 202), and a forming protrusion (402) and a recess (403) for forming the pattern or text.

2. The mold according to claim 1, characterized in that, The mounting strip (401) is integrally connected with the shaped protrusion (402) and the recess (403).

3. The mold according to claim 1, characterized in that, The height of the shaped protrusion (402) is 2-3 mm.

4. A method for preparing fibrous tubular components using a mold (1) according to any one of claims 1 to 3, characterized in that, The method includes: S1 uses a resin material to impregnate the fiber cloth to obtain a pre-impregnated fiber cloth; S2 cuts the pre-impregnated fiber cloth according to the shape of the shaped protrusion (402) to form a cut pre-impregnated fiber cloth with a contour corresponding to the shape of the shaped protrusion (402); S3 wraps pre-impregnated fiber cloth around a rigid mandrel (30) and lays the pre-impregnated fiber cloth and the cut pre-impregnated fiber cloth in accordance with the shape of the upper forming groove (101) of the upper template (10) and the lower forming groove (201) of the lower template (20), wherein the cut pre-impregnated fiber cloth is laid on the surface of the upper forming groove (101) and / or the lower forming groove (201) with the printing stamp (40) so that the forming protrusion (402) of the printing stamp (40) protrudes from the surface of the cut pre-impregnated fiber cloth; S4 closes the mold having the upper template (10), the mandrel (30), and the lower template (20), and cures, cools, and demolds the pre-impregnated fiber and the cut pre-impregnated fiber cloth to obtain a tubular blank having a graphic portion corresponding to the pattern or text to be formed; and S5 fills the graphic portion of the tubular blank with colored resin material to obtain the fibrous tubular part with a pattern or text.

5. The method according to claim 4, characterized in that, The curing temperature is 110-175℃, and the curing time is 1 to 3 hours.

6. The method according to claim 4, characterized in that, Prior to the curing process, the recesses (403) of the printed stamp block (40) are filled with the resin material.

7. The method according to claim 4, characterized in that, Before step S5, a graphic module is inserted into the graphic portion of the tubular blank. The graphic module has a shape that matches the graphic portion and contains colored patterns or text.

8. The method according to claim 4, characterized in that, After step S5, the fiber tubular part with the pattern or text is polished so that the filled pattern or text is flush with the surface of the fiber tubular part.

9. The method according to claim 4, characterized in that, After step S5, the colored resin material is vibrated so that the patterned portion of the tubular blank is filled with the colored resin material.

10. A fiber tubular component, characterized in that, The outer wall of the fibrous tubular member has a pattern or text, wherein the fibrous tubular member is prepared by the method according to any one of claims 4 to 9.

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