Carbon fiber composite material forming mold and application method thereof

CN120533864BActive Publication Date: 2026-09-22QINGDAO HEFENG NEW MATERIAL CO LTD
View PDF 5 Cites 0 Cited by

Patent Information

Application Number
CN202510868163.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-06-26
Publication Date
2026-09-22
Estimated Expiration
2045-06-26

AI Technical Summary

Technical Problem

[0004]现有技术中的碳纤维复合材料成型模具在脱模时,成型件与模具之间粘连牢固,导致成型件脱模不畅

Benefits of technology

通过双轴电机驱动不完全齿轮与第一齿轮的间歇性啮合,带动槽体旋转,使成型件内侧与装置快速分离;同时利用不完全摩擦轮与竖杆的间歇性配合,实现顶块的上下移动,通过撞击槽体辅助成型件与载板分离,提高了脱模效率,降低了脱模难度和劳动强度。

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN120533864B_ABST
    Figure CN120533864B_ABST
Patent Text Reader

Abstract

The application is suitable for the technical field of carbon fiber composite material production, and provides a carbon fiber composite material forming die and an application method thereof.The forming die comprises a machine base, a loading plate is arranged at the upper end of the machine base, a die cavity is formed in the loading plate, a pressing plate is arranged at the upper end of the die cavity, the pressing plate is pressed on the die cavity, an electric telescopic rod is fixedly installed on the machine base, and the output end of the electric telescopic rod is fixedly connected to the pressing plate.A groove is arranged at the bottom of the loading plate, the upper end of the groove penetrates through the loading plate and extends into the die cavity, the lower end of the groove is rotatably installed on the loading plate, a driving mechanism is arranged on the loading plate, and the driving mechanism is used for rotating the driven wheel and moving the top block up and down.The intermittent meshing of the incomplete gear and the first gear driven by the double-shaft motor enables the inside of the forming piece to be quickly separated from the device;at the same time, the intermittent cooperation of the incomplete friction wheel and the vertical rod enables the top block to move up and down, the impact groove assists the forming piece in being separated from the loading plate, the demolding efficiency is improved, and the demolding difficulty and labor intensity are reduced.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This invention belongs to the field of carbon fiber composite material production technology, and particularly relates to a carbon fiber composite material molding die and its application method. Background Technology

[0002] Carbon fiber composites are a new type of material made by combining carbon fiber as the reinforcement with a matrix such as resin, metal, or ceramic. They possess characteristics such as high strength, high modulus, and low density, with specific strength and specific modulus far exceeding those of steel. In the aerospace field, they can reduce structural weight and improve performance; in the automotive industry, they contribute to energy conservation and emission reduction; and in sporting goods manufacturing, they can make equipment lighter and more durable. Their application prospects are broad and are continuously expanding into more emerging fields. Carbon fiber composite molding dies are tools used for molding carbon fiber composite products. Common materials include steel and aluminum alloys; steel, with its high strength, ensures the performance of the finished product.

[0003] A molding die and method for carbon fiber composite materials, with publication number CN115071165A, specifically discloses a curing die and a detachable preform shell mold. The curing die has a curing cavity for accommodating the preform shell mold, and the preform shell mold has a preform cavity adapted to the structure of the molded product. The inner wall of the preform cavity is used to lay several layers of carbon fiber composite preforms to form a preform of the product. A nylon duct is provided inside the preform cavity, and the nylon duct, when inflated, supports the preforms to be tightly attached to the inner wall of the preform cavity. This invention provides a molding die and method for carbon fiber composite materials, which lays layers from the outside in, allowing direct reinforcement of localized areas requiring strengthening, ensuring the overall strength of the molded product.

[0004] In existing carbon fiber composite molding dies, the molded part adheres firmly to the die during demolding, leading to difficulty in demolding. Forced demolding can damage the surface of the product, resulting in unevenness and a significant reduction in smoothness. For example, during demolding, the adhered areas may be pulled, compromising the surface flatness. To address these issues, designing a carbon fiber composite molding die and its application method is essential. Summary of the Invention

[0005] This invention provides a carbon fiber composite material molding die and its application method to solve the above-mentioned problems in the prior art.

[0006] The present invention is implemented as follows: a carbon fiber composite material molding die includes a base, a carrier plate at the upper end of the base, a mold cavity on the carrier plate, a pressure plate at the upper end of the mold cavity, the pressure plate pressing on the mold cavity, and an electric telescopic rod fixedly installed on the base, the output end of the electric telescopic rod being fixedly connected to the pressure plate.

[0007] The bottom of the carrier plate is provided with a groove, the upper end of which penetrates the carrier plate and extends into the mold cavity. The lower end of the groove is rotatably mounted on the carrier plate. An inner plate is fixedly installed inside the groove. An external spline shaft penetrates the inner plate and extends into the groove. A top block is fixedly installed on the top of the external spline shaft, and a driven wheel is fixedly installed on the bottom of the external spline shaft. A spring is sleeved on the external spline shaft, and the upper and lower ends of the spring are fixedly connected to the inner plate and the driven wheel, respectively. A driving mechanism is provided on the carrier plate for rotating the driven wheel and moving the top block up and down.

[0008] Preferably, the drive mechanism includes a bracket, which is fixedly mounted on a carrier plate. A first rotating shaft is rotatably mounted on the bracket. A drive wheel is fixedly mounted on the upper end of the first rotating shaft. The drive wheel is cylindrical. A motor base is fixedly mounted on the carrier plate. A dual-axis motor is fixedly mounted on the motor base. An incomplete gear is fixedly mounted on the output shaft at the upper end of the dual-axis motor. A first gear is fixedly mounted on the bottom of the first rotating shaft. The incomplete gear and the first gear mesh intermittently.

[0009] Preferably, a vertical rod is fixedly installed at the bottom of the driven wheel, and the surface of the vertical rod is provided with anti-slip texture. A support plate is fixedly installed on the carrier plate, and a second rotating shaft is rotatably installed on the support plate. An incomplete friction wheel is fixedly installed on the second rotating shaft, and the incomplete friction wheel and the vertical rod are transmitted through friction.

[0010] Preferably, a third rotating shaft is rotatably mounted on the support plate, a synchronous belt mechanism is installed between the third rotating shaft and the second rotating shaft, a first bevel gear is fixedly mounted on the other end of the third rotating shaft, and a second bevel gear is fixedly mounted on the output shaft at the lower end of the dual-shaft motor, the second bevel gear meshing with the first bevel gear.

[0011] Preferably, a plurality of bottom blocks arranged in a circular array are fixedly installed at the bottom of the pressure plate. Each bottom block has an inclined surface on both sides and a protrusion on one side. The protrusion is fixedly installed on the pressure plate.

[0012] Preferably, an annular ring is rotatably mounted on the carrier plate, and multiple grooves are provided on the annular ring in a circumferential array. A movable block is slidably mounted in the groove, and the upper end of the movable block extends outside the groove. An elastic element is provided in the groove, and the upper and lower ends of the elastic element are fixedly connected to the movable block and the annular ring, respectively.

[0013] Preferably, an external gear ring is fitted and fixedly installed around the annular ring, a mounting groove is provided at the bottom of the carrier plate, a servo motor is fixedly installed in the mounting groove, a second gear is provided above the carrier plate, the second gear meshes with the external gear ring, and the output shaft of the servo motor is fixedly connected to the second gear.

[0014] Preferably, the inner wall of the mold cavity and the surface of the pressure plate are both polished.

[0015] A method for applying a carbon fiber composite material molding die includes the following steps: Step 1: The pressure plate is moved up by the electric telescopic rod, opening the upper port of the mold cavity; Step 2: Add a measured amount of molten material into the mold cavity; Step 3: The pressure plate is moved down by the electric telescopic rod and the upper port of the mold cavity is sealed to compact the material in the mold cavity; Step 4: The servo motor drives the second gear to rotate, which in turn drives the outer gear ring to rotate. The ring ring rotates synchronously with the outer gear ring, and the movable block on the ring ring rotates synchronously. During the rotation, the movable block first contacts the bottom block. The inclined surface on the bottom block applies downward pressure to the movable block, causing it to move downward and the elastic element to contract. As the ring ring continues to rotate, the movable block disengages from the bottom block, and the elastic element drives the movable block to move upward. The upper end of the movable block impacts the protrusion, causing the pressure plate to be continuously impacted by the movable block. The pressure plate vibrates and transmits the vibration to the molded part, making the material in the mold cavity more compact.

[0016] Preferably, the method further includes the following steps: Step 5: Wait for the material in the mold cavity to cool and solidify; Step Six: After molding is completed, the molded part is demolded. The dual-axis motor drives the incomplete gear to rotate, which intermittently drives the first gear to rotate. The first gear, the first shaft, and the driving wheel rotate, which in turn drives the driven wheel to rotate. The driven wheel, the outer spline shaft, the inner plate, and the groove rotate synchronously, thereby driving the groove to rotate. The groove is subjected to rotational force and separates from the molded part, quickly completing the separation of the inner side of the molded part from the device. After the incomplete gear and the first gear separate, the second bevel gear at the lower end of the dual-axis motor drives the first bevel gear to rotate. The third shaft rotates and drives the second shaft to rotate through the synchronous belt mechanism. The incomplete friction wheel on the second shaft rotates and intermittently drives the vertical rod to move downward. As the vertical rod moves downward, the driven wheel, the outer spline shaft, and the top block move downward synchronously, and the spring is stretched. After the incomplete friction wheel separates from the vertical rod, the spring force drives the top block to move upward and impact the groove, so that the groove, the carrier plate, and the molded part are all subjected to an upward impact force, which assists in the separation between the molded part and the carrier plate.

[0017] Compared with related technologies, the carbon fiber composite molding die and its application method provided by the present invention have the following beneficial effects: The intermittent meshing of the incomplete gear and the first gear driven by the dual-axis motor drives the groove to rotate, causing the inner side of the molded part to quickly separate from the device. At the same time, the intermittent engagement of the incomplete friction wheel and the vertical rod enables the top block to move up and down, and the impact on the groove assists in the separation of the molded part from the carrier plate, thereby improving demolding efficiency and reducing demolding difficulty and labor intensity.

[0018] The electric telescopic rod moves the pressure plate downward to compact the material inside the mold cavity, ensuring that the material is initially formed and compact within the mold cavity. A servo motor drives the ring to rotate, causing the moving block to interact with the bottom block and protrusions during rotation, generating impact force that is transmitted to the pressure plate. This causes the pressure plate to vibrate and act on the molded part, making the material inside the mold cavity even denser, improving the quality and performance of the molded part, and reducing internal defects. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is an enlarged schematic diagram of a portion of the structure at the carrier plate in this invention; Figure 3 This is an exploded view of the mold cavity and pressure plate in this invention; Figure 4 This is an enlarged schematic diagram of a portion of the structure at the pressure plate in this invention; Figure 5 This is an enlarged schematic diagram of a portion of the structure at the drive wheel in this invention; Figure 6 This is an exploded view of the carrier plate and the tank in this invention; Figure 7 This is an enlarged cross-sectional view of the carrier plate in this invention; Figure 8 For the present invention Figure 7 Enlarged diagram of point A in the diagram; Figure 9 This is an enlarged cross-sectional view of a portion of the structure at the annular ring in this invention.

[0020] In the diagram: 1. Base plate; 2. Carrier plate; 3. Mold cavity; 4. Pressure plate; 5. Electric telescopic rod; 6. Groove; 7. Inner plate; 8. External spline shaft; 9. Top block; 10. Driven wheel; 11. Spring; 12. Bracket; 13. First rotating shaft; 14. Driving wheel; 15. Motor base; 16. Dual-axis motor; 17. Incomplete gear; 18. First gear; 19. Vertical rod; 20. Support plate; 21. Second rotating shaft; 22. Incomplete friction wheel; 23. Third rotating shaft; 24. Synchronous belt mechanism; 25. First bevel gear; 26. Second bevel gear; 27. Bottom block; 28. Protrusion; 29. ​​Annular ring; 30. Slide groove; 31. Movable block; 32. Elastic element; 33. External gear ring; 34. Mounting groove; 35. Servo motor; 36. Second gear. Detailed Implementation

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0022] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0023] A preferred embodiment of the carbon fiber composite molding die and its application method provided by the present invention is as follows: Figures 1 to 9 As shown: A carbon fiber composite molding die includes a base 1, a carrier plate 2 at the upper end of the base 1, a mold cavity 3 on the carrier plate 2, a pressure plate 4 at the upper end of the mold cavity 3, the pressure plate 4 pressing on the mold cavity 3, an electric telescopic rod 5 fixedly installed on the base 1, the output end of the electric telescopic rod 5 fixedly connected to the pressure plate 4. A groove 6 is provided at the bottom of the carrier plate 2, the upper end of the groove 6 penetrates the carrier plate 2 and extends into the mold cavity 3, the lower end of the groove 6 is rotatably installed on the carrier plate 2, an inner plate 7 is fixedly installed inside the groove 6, an outer spline shaft 8 penetrates the inner plate 7, the upper end of the outer spline shaft 8 extends into the groove 6, a top block 9 is fixedly installed at the top of the outer spline shaft 8, a driven wheel 10 is fixedly installed at the bottom of the outer spline shaft 8, a spring 11 is sleeved on the outer spline shaft 8, the upper and lower ends of the spring 11 are fixedly connected to the inner plate 7 and the driven wheel 10 respectively, and a drive mechanism is provided on the carrier plate 2 for rotating the driven wheel 10 and moving the top block 9 up and down.

[0024] The drive mechanism includes a bracket 12, which is fixedly mounted on a carrier plate 2. A first rotating shaft 13 is rotatably mounted on the bracket 12. A drive wheel 14, which is cylindrical, is fixedly mounted on the upper end of the first rotating shaft 13. A motor mount 15 is fixedly mounted on the carrier plate 2. A dual-axis motor 16 is fixedly mounted on the motor mount 15. An incomplete gear 17 is fixedly mounted on the output shaft at the upper end of the dual-axis motor 16. A first gear 18 is fixedly mounted on the bottom of the first rotating shaft 13. The incomplete gear 17 and the first gear 18 mesh intermittently. A vertical rod 19 is fixedly mounted on the bottom of the driven wheel 10. The surface of the vertical rod 19 is provided with anti-slip texture. A support plate 20 is fixedly mounted on the carrier plate 2. A second rotating shaft 21 is rotatably mounted on the support plate 20. An incomplete friction wheel 22 is fixedly mounted on the second rotating shaft 21. The incomplete friction wheel 22 and the vertical rod 19 are driven by friction. A third rotating shaft 23 is rotatably mounted on the support plate 20. A synchronous belt mechanism 24 is installed between the third rotating shaft 23 and the second rotating shaft 21. A first bevel gear 25 is fixedly mounted on the other end of the third rotating shaft 23. A second bevel gear 26 is fixedly mounted on the output shaft at the lower end of the dual-shaft motor 16. The second bevel gear 26 meshes with the first bevel gear 25.

[0025] The electric telescopic rod 5 drives the pressure plate 4 to move upward, opening the upper port of the mold cavity 3. A quantitative amount of molten material is added into the mold cavity 3. The electric telescopic rod 5 then drives the pressure plate 4 to move downward and seal the upper port of the mold cavity 3. The material in the mold cavity 3 is allowed to cool and solidify. After molding, the molded part 111 is demolded. During demolding, the dual-shaft motor 16 drives the incomplete gear 17 to rotate. The incomplete gear 17 intermittently drives the first gear 18 to rotate. The first gear 18, the first rotating shaft 13, and the driving wheel 14 rotate. The driving wheel 14 drives the driven wheel 10 to rotate. The driven wheel 10, the outer spline shaft 8, the inner plate 7, and the groove 6 rotate synchronously, thereby driving the groove 6 to rotate. The groove 6 is subjected to rotational force and separates from the molded part 111, thus quickly completing the separation of one side of the molded part 111 from the device. After the incomplete gear 17 and the first gear 18 separate, the second bevel gear 26 at the lower end of the dual-shaft motor 16 drives the first bevel gear 25 to rotate. The third rotating shaft 23 rotates and drives the second rotating shaft 21 to rotate through the synchronous belt mechanism 24. The incomplete friction wheel 22 on the second rotating shaft 21 rotates and intermittently drives the vertical rod 19 to move down. As the vertical rod 19 moves down, the driven wheel 10, the external spline shaft 8, and the top block 9 move down synchronously. The spring 11 is stretched. After the incomplete friction wheel 22 separates from the vertical rod 19, the spring force of the spring 11 drives the top block 9 to move up and hit the groove 6, so that the groove 6, the carrier plate 2, and the molding part 111 are all subjected to an upward impact force, which can assist in the separation between the molding part 111 and the carrier plate 2.

[0026] Among them, multiple bottom blocks 27 arranged in a circular array are fixedly installed at the bottom of the pressure plate 4. Both sides of the bottom block 27 are provided with inclined surfaces, and one side of the bottom block 27 is provided with a protrusion 28. The protrusion 28 is fixedly installed on the pressure plate 4.

[0027] A ring 29 is rotatably mounted on the carrier plate 2. Multiple grooves 30 arranged in a circular array are formed on the ring 29. A movable block 31 is slidably mounted within each groove 30, with its upper end extending outside the groove 30. An elastic element 32 is provided within the groove 30, with its upper and lower ends fixedly connected to the movable block 31 and the ring 29, respectively. An external gear ring 33 is fitted and fixedly mounted around the ring 29. A mounting groove 34 is formed at the bottom of the carrier plate 2, and a servo motor 35 is fixedly mounted on the carrier plate 2 within the mounting groove 34. A second gear 36 is located above the carrier plate 2, meshing with the external gear ring 33. The output shaft of the servo motor 35 is fixedly connected to the second gear 36. The inner wall of the mold cavity 3 and the surface of the pressure plate 4 are polished, making the surface of the molded part 111 smoother and reducing the friction between the mold cavity 3 and the molded part 111, making demolding of the molded part 111 easier.

[0028] After the material is injected into the mold cavity 3, the electric telescopic rod 5 drives the pressure plate 4 to move down and compact the material in the mold cavity 3. The servo motor 35 drives the second gear 36 to rotate, and the second gear 36 drives the outer gear ring 33 to rotate. The annular ring 29 rotates synchronously with the outer gear ring 33, and the movable block 31 on the annular ring 29 rotates synchronously. During the rotation, the movable block 31 first contacts the bottom block 27. The inclined surface on the bottom block 27 applies downward pressure to the movable block 31, and the movable block 31 moves down and the elastic element 32 contracts. As the annular ring 29 continues to rotate, the movable block 31 disengages from the bottom block 27, and the elastic element 32 drives the movable block 31 to move up. The upper end of the movable block 31 hits the protrusion 28, so that the pressure plate 4 is continuously hit by the movable block 31. The pressure plate 4 vibrates and transmits the vibration to the molded part 111, making the material in the mold cavity 3 more compact.

[0029] The intermittent meshing of the incomplete gear and the first gear driven by the dual-axis motor drives the groove to rotate, causing the inner side of the molded part to quickly separate from the device. At the same time, the intermittent engagement of the incomplete friction wheel and the vertical rod enables the top block to move up and down, and the impact on the groove assists in the separation of the molded part from the carrier plate, thereby improving demolding efficiency and reducing demolding difficulty and labor intensity.

[0030] The electric telescopic rod moves the pressure plate downward to compact the material inside the mold cavity, ensuring that the material is initially formed and compact within the mold cavity. A servo motor drives the ring to rotate, causing the moving block to interact with the bottom block and protrusions during rotation, generating impact force that is transmitted to the pressure plate. This causes the pressure plate to vibrate and act on the molded part, making the material inside the mold cavity even denser, improving the quality and performance of the molded part, and reducing internal defects.

[0031] A method for applying a carbon fiber composite material molding die includes the following steps: Step 1: Move the pressure plate 4 upward using the electric telescopic rod 5 to open the upper port of the mold cavity 3; Step 2: Add a measured amount of molten material into mold cavity 3; Step 3: The electric telescopic rod 5 drives the pressure plate 4 to move down and seal the upper port of the mold cavity 3, thus compacting the material inside the mold cavity 3; Step 4: The servo motor 35 drives the second gear 36 to rotate, which in turn drives the outer gear ring 33 to rotate. The annular ring 29 rotates synchronously with the outer gear ring 33, and the movable block 31 on the annular ring 29 rotates synchronously. During the rotation, the movable block 31 first contacts the bottom block 27. The inclined surface on the bottom block 27 applies downward pressure to the movable block 31, causing the movable block 31 to move downward and the elastic element 32 to contract. As the annular ring 29 continues to rotate, the movable block 31 disengages from the bottom block 27, and the elastic element 32 drives the movable block 31 to move upward. The upper end of the movable block 31 impacts the protrusion 28, causing the pressure plate 4 to be continuously impacted by the movable block 31. The pressure plate 4 vibrates and transmits the vibration to the molded part 111, making the material in the mold cavity 3 more compact.

[0032] It also includes the following steps: Step 5: Wait for the material in mold cavity 3 to cool and solidify; Step Six: After molding is completed, demolding of molded part 111 is performed. The dual-axis motor 16 drives the incomplete gear 17 to rotate, which intermittently drives the first gear 18 to rotate. The first gear 18, the first rotating shaft 13, and the driving wheel 14 rotate, which in turn drives the driven wheel 10 to rotate. The driven wheel 10, the outer spline shaft 8, the inner plate 7, and the groove 6 rotate synchronously, thereby causing the groove 6 to rotate. The groove 6 is subjected to rotational force and separates from the molded part 111, quickly completing the separation of one side of the molded part 111 from the device. After the incomplete gear 17 and the first gear 18 separate, the dual-axis motor 16... The second bevel gear 26 at the lower end drives the first bevel gear 25 to rotate. The third rotating shaft 23 rotates and drives the second rotating shaft 21 to rotate through the synchronous belt mechanism 24. The incomplete friction wheel 22 on the second rotating shaft 21 rotates and intermittently drives the vertical rod 19 to move down. The vertical rod 19 moves down and the driven wheel 10, the external spline shaft 8, and the top block 9 move down synchronously. The spring 11 is stretched. After the incomplete friction wheel 22 separates from the vertical rod 19, the spring force of the spring 11 drives the top block 9 to move up and hit the groove 6, so that the groove 6, the carrier plate 2, and the molding part 111 are all subjected to an upward impact force, which helps the molding part 111 to separate from the carrier plate 2.

[0033] It is worth noting that the circuits, electronic components, and modules involved in this invention are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this invention does not involve improvements to the software and methods.

[0034] It should be understood that the disclosed apparatus can be implemented in other ways, given the several embodiments provided in this application. For example, the apparatus embodiments described above are merely illustrative; the division of units described above is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or communication connections shown or discussed may be through some interfaces; the indirect coupling or communication connections between devices or units may be telecommunications or other forms.

[0035] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit the scope of protection of the invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of the present invention according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of the present invention. These technical solutions also fall within the scope of protection of the present invention.

Claims

1. A molding die for carbon fiber composite materials, characterized in that, Includes a base (1), the upper end of the base (1) is provided with a carrier plate (2), the carrier plate (2) is provided with a mold cavity (3), the upper end of the mold cavity (3) is provided with a pressure plate (4), the pressure plate (4) presses on the mold cavity (3), and an electric telescopic rod (5) is fixedly installed on the base (1), the output end of the electric telescopic rod (5) is fixedly connected to the pressure plate (4); The bottom of the carrier plate (2) is provided with a groove (6), the upper end of the groove (6) passes through the carrier plate (2) and extends into the mold cavity (3), the lower end of the groove (6) is rotatably mounted on the carrier plate (2), an inner plate (7) is fixedly installed inside the groove (6), an outer spline shaft (8) passes through the inner plate (7), the upper end of the outer spline shaft (8) extends into the groove (6), a top block (9) is fixedly installed on the top of the outer spline shaft (8), a driven wheel (10) is fixedly installed at the bottom of the outer spline shaft (8), a spring (11) is sleeved on the outer spline shaft (8), the upper and lower ends of the spring (11) are fixedly connected to the inner plate (7) and the driven wheel (10) respectively, and a driving mechanism is provided on the carrier plate (2). The driving mechanism is used for the driven wheel (10) to rotate and the top block (9) to move up and down. The drive mechanism includes a bracket (12), which is fixedly mounted on a carrier plate (2). A first rotating shaft (13) is rotatably mounted on the bracket (12). A drive wheel (14) is fixedly mounted on the upper end of the first rotating shaft (13). The drive wheel (14) is cylindrical. A motor base (15) is fixedly mounted on the carrier plate (2). A dual-axis motor (16) is fixedly mounted on the motor base (15). An incomplete gear (17) is fixedly mounted on the output shaft at the upper end of the dual-axis motor (16). A first gear (18) is fixedly mounted on the bottom of the first rotating shaft (13). The incomplete gear (17) and the first gear (18) mesh intermittently. A vertical rod (19) is fixedly installed at the bottom of the driven wheel (10). The surface of the vertical rod (19) is provided with anti-slip texture. A support plate (20) is fixedly installed on the carrier plate (2). A second rotating shaft (21) is rotatably installed on the support plate (20). An incomplete friction wheel (22) is fixedly installed on the second rotating shaft (21). The incomplete friction wheel (22) and the vertical rod (19) are transmitted through friction. A third rotating shaft (23) is rotatably mounted on the support plate (20). A synchronous belt mechanism (24) is installed between the third rotating shaft (23) and the second rotating shaft (21). A first bevel gear (25) is fixedly mounted on the other end of the third rotating shaft (23). A second bevel gear (26) is fixedly mounted on the output shaft at the lower end of the dual-shaft motor (16). The second bevel gear (26) meshes with the first bevel gear (25). The bottom of the pressure plate (4) is fixedly installed with a plurality of bottom blocks (27) arranged in a circular array. Both sides of the bottom blocks (27) are provided with inclined surfaces, and one side of the bottom blocks (27) is provided with a protrusion (28). The protrusion (28) is fixedly installed on the pressure plate (4). A ring (29) is rotatably mounted on the carrier plate (2). The ring (29) has multiple grooves (30) arranged in a circular array. A movable block (31) is slidably mounted in the groove (30). The upper end of the movable block (31) extends outside the groove (30). An elastic element (32) is provided in the groove (30). The upper and lower ends of the elastic element (32) are fixedly connected to the movable block (31) and the ring (29) respectively. An external gear ring (33) is fitted and fixedly installed on the annular ring (29). An installation groove (34) is provided at the bottom of the carrier plate (2). A servo motor (35) is fixedly installed on the carrier plate (2) in the installation groove (34). A second gear (36) is provided above the carrier plate (2). The second gear (36) meshes with the external gear ring (33). The output shaft of the servo motor (35) is fixedly connected to the second gear (36). The inner wall of the mold cavity (3) and the surface of the pressure plate (4) are both polished.

2. A method for applying a carbon fiber composite material molding die, using the carbon fiber composite material molding die as described in claim 1, characterized in that, Includes the following steps: Step 1: Move the pressure plate (4) upward by using the electric telescopic rod (5) to open the upper port of the mold cavity (3); Step 2: Add the quantitatively melted material into the mold cavity (3); Step 3: Drive the pressure plate (4) down by the electric telescopic rod (5) and seal the upper port of the mold cavity (3) to compact the material in the mold cavity (3); Step 4: The servo motor (35) drives the second gear (36) to rotate, and the second gear (36) drives the outer gear ring (33) to rotate. The ring ring (29) rotates synchronously with the outer gear ring (33). The movable block (31) on the ring ring (29) rotates synchronously. During the rotation, the movable block (31) first contacts the bottom block (27). The inclined surface on the bottom block (27) applies downward pressure to the movable block (31). The movable block (31) moves down and the elastic element (32) contracts. As the ring ring (29) continues to rotate, the movable block (31) separates from the bottom block (27). The elastic element (32) drives the movable block (31) to move up. The upper end of the movable block (31) hits the protrusion (28), so that the pressure plate (4) is continuously hit by the movable block (31). The pressure plate (4) vibrates and transmits it to the molding part (111), making the material in the mold cavity (3) more compact.

3. The application method of the carbon fiber composite material molding die as described in claim 2, characterized in that, It also includes the following steps: Step 5: Wait for the material in the mold cavity (3) to cool and solidify; Step Six: After molding is completed, demolding of the molded part (111) is performed. The incomplete gear (17) is driven to rotate by the dual-axis motor (16). The incomplete gear (17) intermittently drives the first gear (18) to rotate. The first gear (18), the first rotating shaft (13), and the driving wheel (14) rotate. The driving wheel (14) drives the driven wheel (10) to rotate. The driven wheel (10), the external spline shaft (8), the inner plate (7), and the groove (6) rotate synchronously, thereby driving the groove (6) to rotate. The groove (6) is subjected to rotational force and separates from the molded part (111), quickly completing the separation of one side of the molded part (111) from the device. After the incomplete gear (17) and the first gear (18) separate, the lower end of the dual-axis motor (16) The second bevel gear (26) drives the first bevel gear (25) to rotate. The third shaft (23) rotates and drives the second shaft (21) to rotate through the synchronous belt mechanism (24). The incomplete friction wheel (22) on the second shaft (21) rotates and intermittently drives the vertical rod (19) to move down. The vertical rod (19) moves down and the driven wheel (10), the external spline shaft (8), and the top block (9) move down synchronously. The spring (11) is stretched. After the incomplete friction wheel (22) separates from the vertical rod (19), the spring force of the spring (11) drives the top block (9) to move up and hit the groove (6), so that the groove (6), the carrier plate (2), and the molding part (111) are all subjected to an upward impact force, which assists in the separation between the molding part (111) and the carrier plate (2).

Citation Information

Patent Citations

  • Forming mold and method for carbon fiber composite material

    CN115071165A

  • Plenum chamber flange rolling forming equipment

    CN118218489A

  • Electronic ceramic automatic pressing equipment and method

    CN119839979A

  • Commercial wheel cover injection mold

    CN216968553U

  • Ejection structure of injection mold for automobile parts

    CN220373832U