Composite material fitting casting device and casting method

Abstract

The application relates to the technical field of power fitting manufacturing, and discloses a composite material fitting casting device and a casting method, which comprise, along a preset axis, a front mold fixing plate, a first mold plate, a second mold plate, a backing plate, a supporting piece and a rear mold fixing plate; the first mold plate and the second mold plate are both provided with a cavity, the cavity in the first mold plate is fixed with a first forming part, and the cavity in the second mold plate is fixed with a second forming part. The application cooperatively realizes high-precision anchoring of carbon fibers through components such as tooth blocks, greatly improves the strength and hardness of the composite material fitting, enhances the durability and reliability, and can adapt to complex working conditions; a unique bolt and positioning pin connection mode is adopted, the mold parts are convenient to disassemble and assemble, the maintenance difficulty and cost are reduced, the maintenance time is shortened, and the production efficiency is improved; a vacuum-related structure is innovatively arranged to create a vacuum environment for the cavity and avoid oxidation of the carbon fibers.

Description

Technical Field

[0001] This invention relates to the field of power fitting manufacturing technology, specifically to a composite material fitting casting apparatus and casting method. Background Technology

[0002] The composite material fitting casting device is an integrated equipment system specifically designed for manufacturing composite material fittings. This device innovatively integrates aluminum alloy metal materials with non-metallic carbon fiber reinforcement materials, and uses a precisely designed mold to achieve the integrated molding of the two materials, thus building a highly efficient and collaborative mechanical system. The composite material fitting casting method relies on a specific process flow to combine a metal matrix with non-metallic materials under strictly controlled conditions, ultimately forming fitting products with specific mechanical strength, excellent insulation properties, and good weather resistance.

[0003] In the current hardware manufacturing field, traditional processes mainly rely on sand casting and forging. However, these processes have obvious limitations. For example, sand casting and forging are prone to coarse grains, which not only affect the mechanical properties of the hardware but also reduce its overall quality. At the same time, traditional processes have high requirements for the performance of alloy materials. This not only increases the scrap rate of cast hardware and wastes resources but also significantly increases material costs, putting considerable economic pressure on enterprises. Summary of the Invention

[0004] To address the aforementioned shortcomings of existing technologies, this invention provides a composite material fitting casting apparatus and casting method, which can effectively solve the problems in existing technologies where the adhesion strength between the wax model and the mold is high, making it difficult to directly remove the wax model from the mold, and when forcibly demolding, the demolding tool easily scratches the surface of the wax model, thereby reducing the surface integrity of the wax model, increasing the number of defective wax models, and significantly increasing material costs.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] This invention provides a composite material fitting casting apparatus and casting method, comprising: a front mold fixing plate, a first template, a second template, a pad, a support member, and a rear mold fixing plate arranged sequentially along a preset axis; both the first template and the second template have cavities, a first forming part is fixed in the cavity of the first template, and a second forming part is fixed in the cavity of the second template; the first template and the front mold fixing plate are slidably fitted, and the second template, the pad, the support member, and the rear mold fixing plate are fixedly connected; the sides of the first template and the second template are jointly provided with a slotting assembly;

[0007] The slotting assembly includes an internally threaded plate, a support structure, a gear, a threaded post, a positioning element, and an anchor. The support structure is fixedly connected to the second template, the positioning element is rotatably connected to the support structure, the gear is slidably engaged with the positioning element, a toothed block meshing with the gear is fixedly connected to the first template, and the threaded post is fixedly connected to the end of the gear. The threaded post is fixedly connected to the internally threaded plate, and the internally threaded plate is fixedly connected to the second template. The anchor is sleeved on the end of the threaded post.

[0008] The second template has a vacuum channel on the side away from the slot assembly. One end of the vacuum channel is fixedly connected to an interface piece, and the other end is connected to the interior of the second molding part. The second molding part has a sealing groove corresponding to the vacuum channel, and a sealing block is fitted in the sealing groove.

[0009] Furthermore, a sprue plate is fixed to the lower end of the front mold fixing plate via a detachable connector, an extension rod is fixedly installed at the lower end of the sprue plate, one end of the sealing block is fixedly connected to the extension rod, and the other end of the sealing block passes through the first template and engages with the sealing groove.

[0010] Furthermore, two support members are provided, and an ejector assembly is slidably provided between the two support members. The ejector assembly includes a bearing plate and uniformly distributed ejector pins. The ejector pins penetrate the pad, the second template, and the second forming part, and the end of the ejector pin is in contact with the inner surface of the second forming part near the pad.

[0011] Furthermore, a mounting base is fixedly connected to the end face of the first template near the slotted component, and the toothed block is fixedly connected to the mounting base.

[0012] Furthermore, a limiting part is integrally formed at the center of one end of the toothed block, and a limiting seat is fixedly connected to the lower end of the support structure. A guide groove matching the limiting part is opened on the inner side of the limiting seat, and the limiting part slides in cooperation with the guide groove.

[0013] Furthermore, the inner side of the second forming part is provided with a sealing groove, and the threaded post is provided with a sealing protrusion that seals with the sealing groove.

[0014] Furthermore, the anchor has a threaded hole on the side near the threaded post, the threaded post is threadedly connected to the anchor, and the outer wall of the anchor has several grooves for engaging carbon fibers.

[0015] A casting method based on the above-described composite material fitting casting apparatus includes the following steps:

[0016] S1: Install the composite material fitting casting device on the die casting machine;

[0017] S2: Install the anchor with carbon fiber plate onto the threaded post;

[0018] S3: Mold closing, so that the front mold fixing plate, the first template, the second template, the pad, the support and the rear mold fixing plate are attached in sequence;

[0019] S4: The support structure drives the positioning component, gear and threaded column to move toward the first template. The gear block and gear cooperate to make the gear and threaded column rotate. The threaded column and threaded plate cooperate to make the threaded column and anchor move toward the second forming part.

[0020] S5: After the front mold fixing plate, the first template, the second template, the pad, the support and the rear mold fixing plate are attached in sequence, and before the sealing block seals the sealing groove, the inside of the second molding part and the first molding part is evacuated.

[0021] S6: After vacuuming, the mold is closed and casting is carried out.

[0022] The technical solution provided by this invention has the following advantages compared with the prior art:

[0023] 1. This invention utilizes the coordinated operation of toothed blocks, gears, threaded columns, and anchors. During the casting process, the meshing transmission between gears and toothed blocks converts linear motion into rotational motion of the threaded columns, thereby facilitating the adjustment of the anchor's position. It can precisely engage carbon fibers according to different hardware design requirements. After the carbon fibers are stably fixed by the concave holes on the outer wall of the anchor, they are fully integrated with the casting material, significantly enhancing the strength, hardness, and other mechanical properties of the composite hardware, improving the durability and reliability of the hardware, and enabling it to better adapt to various complex operating conditions.

[0024] 2. The present invention uses bolts to connect the front mold fixing plate and the sprue plate, and the rear mold fixing plate and the pad plate to be installed with positioning pins, which makes it easy to disassemble and replace each component. When the equipment malfunctions or needs maintenance, the corresponding components can be quickly inspected and replaced, reducing the difficulty and cost of maintenance and improving the maintainability of the equipment.

[0025] 3. By setting key structures such as interface components, extension rods, sealing blocks, and sealing grooves, this invention creates an ideal vacuum environment inside the mold cavity. When the vacuum pump is used to evacuate the mold cavity, it can quickly and effectively remove the air inside the mold cavity, maintaining a high vacuum state and preventing carbon fiber oxidation. At the same time, after the vacuum in the mold cavity is evacuated, the sealing block and the sealing groove can fit tightly together to reliably seal the groove where the vacuum was evacuated, effectively preventing leakage of the casting molten metal inside the mold cavity. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention;

[0028] Figure 2 This is a first-view schematic diagram of the overall structure of the casting mechanism according to an embodiment of the present invention;

[0029] Figure 3 This is a second-view schematic diagram of the overall structure of the casting mechanism according to an embodiment of the present invention;

[0030] Figure 4 This is a schematic diagram illustrating the internal structure of the casting mechanism according to an embodiment of the present invention;

[0031] Figure 5 This is a schematic diagram of the internal cross-section of the gear structure according to an embodiment of the present invention;

[0032] Figure 6 This is an embodiment of the present invention. Figure 5 A magnified view of part A in the diagram;

[0033] Figure 7 This is an embodiment of the present invention. Figure 5 A magnified view of part B in the diagram;

[0034] Figure 8 This is an embodiment of the present invention. Figure 5 A magnified view of part C in the diagram.

[0035] The labels in the diagram represent: 1. Base; 2. Injection unit; 3. Injection cylinder; 31. Front mold fixing plate; 4. Mold opening cylinder; 41. Rear mold fixing plate; 5. Support component; 6. Pad plate; 7. Second template; 71. Internal thread plate; 72. Support structure; 73. Limiting seat; 74. Positioning component; 75. Gear; 76. Threaded column; 761. Sealing protrusion; 77. Second forming part; 771. Sealing groove; 78. Anchor; 79. Sealing slot; 8. First template; 81. Mounting seat; 82. Tooth block; 83. Limiting part; 84. First forming part; 9. Sprue plate; 91. Extension rod; 92. Sealing block; 10. Interface component. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0037] The present invention will be further described below with reference to embodiments.

[0038] The base 1 serves as the basic load-bearing component of the entire casting device, providing a stable mounting platform for the injection unit 2, injection cylinder 3, and mold opening cylinder 4. Since the base 1, injection unit 2, injection cylinder 3, and mold opening cylinder 4 are existing structures, they will not be described in detail here. The injection cylinder 3 drives the front mold fixing plate 31, which can push or pull the fixed components in the mold mechanism to cooperate in completing the injection action during the casting process. The mold opening cylinder 4 drives the rear mold fixing plate 41.

[0039] Example:

[0040] Please see Figures 1-8 This invention provides a technical solution: a composite material fitting casting device, comprising: a front mold fixing plate 31, a first template 8, a second template 7, a pad 6, a support member 5, and a rear mold fixing plate 41 arranged sequentially along a preset axis; both the first template 8 and the second template 7 are provided with cavities, a first forming part 84 is fixed in the cavity of the first template 8, and a second forming part 77 is fixed in the cavity of the second template 7; the first template 8 is slidably fitted with the front mold fixing plate 31, and the second template 7, the pad 6, the support member 5, and the rear mold fixing plate 41 are fixedly connected; the sides of the first template 8 and the second template 7 are jointly provided with a slotting assembly;

[0041] The slotting assembly includes an internally threaded plate 71, a support structure 72, a gear 75, a threaded post 76, a positioning element 74, and an anchor 78. The support structure 72 is fixedly connected to the second template 7, the positioning element 74 is rotatably connected to the support structure 72, the gear 75 is slidably engaged with the positioning element 74, a toothed block 82 meshing with the gear 75 is fixedly connected to the first template 8, the threaded post 76 is fixedly connected to the end of the gear 75, the threaded post 76 is fixedly connected to the internally threaded plate 71, and the internally threaded plate 71 is fixedly connected to the second template 7. The anchor 78 is sleeved on the end of the threaded post 76.

[0042] The second template 7 has a vacuum channel on the side away from the slot assembly. One end of the vacuum channel is fixedly connected to the interface piece 10, and the other end is connected to the interior of the second molding part 77. The second molding part 77 has a sealing groove 771 corresponding to the vacuum channel, and a sealing block 92 is fitted in the sealing groove 771.

[0043] The sliding fit between the front mold fixing plate 31 and the first mold plate 8 enables the mold to open and close during the casting process to meet the requirements of material loading and demolding. The second mold plate 7, the pad plate 6, the support 5 and the rear mold fixing plate 41 are fixedly connected to ensure the stability of the rear structure of the device and provide reliable support for the casting process. The cavities and corresponding forming parts in the first mold plate 8 and the second mold plate 7 are key parts for forming composite material fittings. Through the cooperation of the two, the shape of the fittings can be accurately shaped. The slotting assembly provides a structural basis for the subsequent embedding of reinforcing materials such as carbon fiber or other process operations, enabling the casting device to adapt to the complex manufacturing process requirements of composite material fittings.

[0044] The slotted assembly enables precise positioning and driving of the anchor 78. The support structure 72 is fixed on the second template 7, providing support for the positioning element 74, gear 75, and threaded post 76. The positioning element 74 is rotatably connected to the support structure 72, allowing the gear 75 to rotate within a certain range. When the first template 8 moves, the tooth block 82 meshes with the gear 75, driving the threaded post 76 to rotate. The threaded post 76 engages with the internal thread plate 71, converting the rotation into axial movement, thereby driving the anchor 78 to move toward the second forming part 77. During the mold closing process, the installation and positioning of the anchor 78 can be automatically achieved without the need for an additional driving device, simplifying the operation process and improving production efficiency. At the same time, the anchor 78 is sleeved on the end of the threaded post 76, making it easy to replace anchors 78 of different specifications to meet the production needs of different composite material fittings.

[0045] The vacuum channel, interface 10, sealing groove 771, and sealing block 92 are designed to control the vacuum environment during the casting process. By connecting to an external vacuum device through interface 10, air inside the second molding section 77 can be extracted to create a vacuum state. This helps to eliminate air bubbles generated during the casting process of the composite material and improves the density and quality of the fittings. The cooperation between the sealing groove 771 and the sealing block 92 ensures the sealing of the vacuum channel after mold closing, preventing external air from entering and ensuring the stability of the vacuum environment. During mold closing, the sealing block 92 will be accurately embedded in the sealing groove 771 to achieve the sealing function and ensure the sealing effect. It is also easy for the sealing block 92 to be removed when the mold is opened, without affecting the opening and closing operation of the template.

[0046] In one embodiment of this application, a sprue plate 9 is fixed to the lower end of the front mold fixing plate 31 by a detachable connector, an extension rod 91 is fixedly installed at the lower end of the sprue plate 9, one end of the sealing block 92 is fixedly connected to the extension rod 91, and the other end of the sealing block 92 passes through the first template 8 and cooperates with the sealing groove 771.

[0047] The connection structure of the front mold fixing plate 31, the sprue plate 9, the extension rod 91, and the sealing block 92 enables the linkage control of the sealing block 92. The sprue plate 9 is connected to the front mold fixing plate 31 through a detachable connector, which facilitates the replacement or maintenance of the sprue plate 9 when needed. The extension rod 91 connects the sealing block 92 to the sprue plate 9, so that during the mold closing process, as the front mold fixing plate 31 and the first template 8 move, the sealing block 92 can be accurately inserted into the sealing groove 771 to achieve the sealing of the vacuum channel, ensuring the synchronization of the sealing action and the mold closing action, improving the automation level and sealing reliability of the device. At the same time, the design of the sealing block 92 penetrating the first template 8 allows the sealing block 92 to move smoothly during the opening and closing of the template without being obstructed by the template structure.

[0048] In one embodiment of this application, two support members 5 are provided, and an ejector assembly is slidably provided between the two support members 5. The ejector assembly includes a bearing plate and uniformly distributed ejector pins. The ejector pins penetrate the pad plate 6, the second template 7 and the second forming part 77, and the end of the ejector pin is in contact with the inner surface of the second forming part 77 near the pad plate 6.

[0049] Two support members 5 provide stable support for the entire device, ensuring the stability of the device during the casting process. The ejector assembly is set up to realize the demolding operation of the fixture after casting. The support plate is used to support the ejector pins. The evenly distributed ejector pins can apply the ejection force evenly to the fixture during demolding, avoiding damage to the fixture due to uneven force during demolding. The ejector pins pass through the pad plate 6, the second template 7, and the second forming part 77. After casting is completed, the ejector assembly is driven to move the ejector pins along the sliding direction, ejecting the fixture from the second forming part 77, realizing automated demolding, improving production efficiency, and reducing manual labor intensity. At the same time, the design of the ejector pin end fitting with the inner surface of the second forming part 77 ensures that the ejector pins will not affect the forming accuracy of the fixture during the casting process, and only play a role during demolding.

[0050] In one embodiment of this application, a mounting base 81 is fixedly connected to the end face of the first template 8 near the slotted component, and the toothed block 82 is fixedly connected to the mounting base 81.

[0051] The mounting base 81 provides a reliable mounting foundation for the toothed block 82. Fixing the toothed block 82 on the mounting base 81 ensures the installation accuracy and stability of the toothed block 82 on the first template 8, ensuring accurate transmission of motion and power during meshing with the gear 75. At the same time, the design of the mounting base 81 facilitates the installation and removal of the toothed block 82. If the toothed block 82 is worn or damaged during use, the normal function of the slotting component can be easily restored by replacing the toothed block 82 on the mounting base 81, reducing the maintenance cost and difficulty of the equipment. In addition, the mounting base 81 can also provide a certain degree of protection for the toothed block 82, preventing it from being damaged by collisions or other external forces during the opening and closing of the template.

[0052] In one embodiment of this application, a limiting part 83 is integrally formed at the center of one end of the toothed block 82, and a limiting seat 73 is fixedly connected to the lower end of the support structure 72. A guide groove matching the limiting part 83 is provided on the inner side of the limiting seat 73, and the limiting part 83 slides in cooperation with the guide groove.

[0053] The cooperation between the limiting part 83 and the limiting seat 73 provides guidance and limiting functions for the movement of the tooth block 82. During the movement of the first template 8, the limiting part 83 on the tooth block 82 slides in the guide groove of the limiting seat 73, ensuring that the tooth block 82 can move in the correct direction, thereby ensuring that the tooth block 82 and the gear 75 always maintain a good meshing state, avoiding misalignment or jamming, improving the accuracy and stability of the grooving assembly movement, and making the positioning of the anchor 78 more precise. At the same time, the cooperation between the limiting part 83 and the guide groove can also withstand a certain lateral force, enhancing the anti-interference ability of the tooth block 82 during the movement process, and ensuring the reliable operation of the entire casting device under complex working conditions.

[0054] In one embodiment of this application, the second forming part 77 is provided with a sealing groove 79 on its inner side, and the threaded post 76 is provided with a sealing protrusion 761 that seals with the sealing groove 79.

[0055] The sealing groove 79 and sealing protrusion 761 further improve the sealing performance of the device. During the movement of the threaded post 76 and the anchor 78, when the threaded post 76 reaches the predetermined position, the sealing protrusion 761 will accurately embed into the sealing groove 79 to form a sealing structure. This can prevent the composite material from leaking from the connection between the threaded post 76 and the second molding part 77 during the casting process, and also prevent outside air from entering the molding part, ensuring the integrity of the vacuum environment and the smooth progress of the casting process. At the same time, this sealing structure design is simple, the sealing effect is reliable, and it is easy to process, manufacture and maintain, thus improving the overall performance and reliability of the device.

[0056] In one embodiment of this application, the anchor 78 has a threaded hole on the side near the threaded post 76, the threaded post 76 is threadedly connected to the anchor 78, and the outer wall of the anchor 78 has a plurality of grooves for engaging carbon fibers.

[0057] The threaded connection between anchor 78 and threaded post 76 facilitates the installation and removal of anchor 78. When replacing anchor 78 with different specifications or performing equipment maintenance, anchor 78 can be easily removed from threaded post 76. The groove design on the outer wall of anchor 78 is designed to better engage reinforcing materials such as carbon fiber. During the casting process, carbon fiber plates are embedded in the grooves. Through the casting of composite materials, carbon fiber and composite hardware can be firmly bonded together, improving the strength and performance of the hardware. Anchor 78 achieves an effective connection between reinforcing materials and the hardware body, meeting the requirements of high strength and high performance for composite hardware.

[0058] Working principle:

[0059] First, before starting the device, ensure that the base 1 is level, the injection unit 2, the injection cylinder 3, and the mold opening cylinder 4 are installed securely, the first template 8 and the front mold fixing plate 31 are in sliding fit, and the second template 7, the pad 6, the support 5, and the rear mold fixing plate 41 are fixedly connected securely. At the same time, check the installation of each component of the slotting assembly to ensure that the support structure 72 is fixed to the second template 7, the gear 75 is slidably sleeved on the outside of the positioning part 74, the tooth block 82 meshes normally with the gear 75, and the threaded column 76 is correctly connected to the gear 75 and the anchor 78. Then clean the cavity surfaces of the first forming part 84 and the second forming part 77 to remove residual impurities and oxide layers in preparation for subsequent casting.

[0060] Next, the equipment is started to move the first template 8 along the sliding direction of the front mold fixing plate 31, so that it aligns with the second template 7. During the movement of the first template 8, the toothed block 82 at the lower end of the mounting base 81 moves accordingly, and drives the gear 75 to rotate through meshing with the gear 75. When the gear 75 rotates, the threaded post 76 fixed at its end rotates synchronously, driving the anchor 78 to move, so that the recess on the outer wall of the anchor 78 enters the predetermined position. Finally, the first template 8 and the second template 7 are aligned, and the first forming part 84 and the second forming part 77 together form a complete cavity. At the same time, the front mold fixing plate 31 drives the sprue plate 9 to move, and the sealing protrusion 761 at the end of the threaded post 76 is embedded in the sealing groove 79 inside the second forming part 77 to achieve double sealing of the cavity. Then, the vacuum equipment is connected through the interface piece 10, and the vacuum channel of the second template 7 is used to evacuate the cavity to form a vacuum environment.

[0061] Finally, the molten metal fitting is filled into the cavity through the reserved gate. The concave part of the outer wall of the anchor 78 is engaged with the carbon fiber to enhance the bonding force between the carbon fiber and the anchor 78 and ensure that the carbon fiber is evenly distributed throughout the cavity. Then, the cavity is heated and pressurized for curing treatment to solidify the composite material. During the curing process, the vacuum environment is kept stable. After curing, the first template 8 is reversed to separate it from the second template 7. During the separation process, the tooth block 82 drives the gear 75 to rotate in the opposite direction, so that the threaded column 76 drives the anchor 78 to reset. Then, the support plate of the ejector assembly is driven to push the molded composite material fitting out of the cavity of the second template 7 through the evenly distributed ejector pins, thus completing the demolding.

[0062] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A composite material fitting casting apparatus, characterized in that, include: A front mold fixing plate (31), a first template (8), a second template (7), a pad (6), a support member (5), and a rear mold fixing plate (41) are arranged sequentially along a preset axis. Both the first template (8) and the second template (7) are provided with cavities. A first forming part (84) is fixed in the cavity of the first template (8), and a second forming part (77) is fixed in the cavity of the second template (7). The first template (8) is slidably fitted with the front mold fixing plate (31), and the second template (7), the pad (6), the support member (5), and the rear mold fixing plate (41) are fixedly connected. The sides of the first template (8) and the second template (7) are provided with a slotting assembly. The slotting assembly includes an internal threaded plate (71), a support structure (72), a gear (75), a threaded post (76), a positioning element (74), and an anchor (78). The support structure (72) is fixedly connected to the second template (7), the positioning element (74) is rotatably connected to the support structure (72), the gear (75) is slidably engaged with the positioning element (74), a toothed block (82) that meshes with the gear (75) is fixedly connected to the first template (8), the threaded post (76) is fixedly connected to the end of the gear (75), the threaded post (76) is fixedly connected to the internal threaded plate (71), the internal threaded plate (71) is fixedly connected to the second template (7), and the anchor (78) is sleeved on the end of the threaded post (76). The second template (7) has a vacuum channel on the side away from the slot assembly. One end of the vacuum channel is fixedly connected to an interface piece (10), and the other end is connected to the interior of the second molding part (77). The second molding part (77) has a sealing groove (771) corresponding to the vacuum channel. A sealing block (92) is provided in the sealing groove (771). The lower end of the front mold fixing plate (31) is fixed with a sprue plate (9) by a detachable connector. An extension rod (91) is fixedly installed at the lower end of the sprue plate (9). One end of the sealing block (92) is fixedly connected to the extension rod (91), and the other end of the sealing block (92) passes through the first template (8) and cooperates with the sealing groove (771). Two support members (5) are provided, and an ejection assembly is slidably provided between the two support members (5). The ejection assembly includes a bearing plate and uniformly distributed ejector pins. The ejector pins penetrate the pad plate (6), the second template (7) and the second forming part (77). The end of the ejector pin is in contact with the inner surface of the second forming part (77) near the pad plate (6). The first template (8) has a mounting base (81) fixedly connected to the end face near the slotted component, and the toothed block (82) is fixedly connected to the mounting base (81); A limiting part (83) is integrally formed at the center of one end of the toothed block (82). The lower end of the support structure (72) is fixedly connected to the limiting seat (73). The inner side of the limiting seat (73) is provided with a guide groove that matches the limiting part (83). The limiting part (83) and the guide groove slide together.

2. The composite material fitting casting apparatus according to claim 1, characterized in that: The second forming part (77) has a sealing groove (79) on its inner side, and the threaded column (76) has a sealing protrusion (761) that seals with the sealing groove (79).

3. The composite material fitting casting apparatus according to claim 1, characterized in that: The anchor (78) has a threaded hole on the side near the threaded post (76), the threaded post (76) is threadedly connected to the anchor (78), and the outer wall of the anchor (78) has several grooves for engaging carbon fibers.

4. A casting method based on the composite material fitting casting apparatus of claim 1, characterized in that, Includes the following steps: S1: Install the composite material fitting casting device on the die casting machine; S2: Install the anchor (78) with carbon fiber plate onto the threaded post (76); S3: Close the mold, so that the front mold fixing plate (31), the first template (8), the second template (7), the pad (6), the support (5) and the rear mold fixing plate (41) are attached in sequence; S4: The support structure (72) drives the positioning part (74), gear (75) and threaded column (76) to move toward the first template (8). The tooth block (82) cooperates with the gear (75) to make the gear (75) and threaded column (76) rotate. The threaded column (76) cooperates with the threaded plate (71) to make the threaded column (76) and anchor (78) move toward the second forming part (77). S5: After the front mold fixing plate (31), the first template (8), the second template (7), the pad (6), the support (5) and the rear mold fixing plate (41) are attached in sequence, before the sealing block (92) seals the sealing groove (771), the interior of the second molding part (77) and the first molding part (84) is evacuated. S6: After vacuuming, the mold is closed and casting is carried out.

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