Carbon fiber hot pressing device

Abstract

This utility model discloses a carbon fiber hot pressing device, relating to the field of carbon fiber material technology, including: a workbench and a hot pressing assembly; the hot pressing assembly includes: a thermally conductive silicone plate, an extrusion assembly, a heating assembly, and an adjustment assembly. The top of the workbench is fixedly connected to the extrusion assembly, and the interior of the extrusion assembly is fixedly connected to the heating assembly for heating the extrusion assembly; the bottom of the heating assembly is connected to the adjustment assembly for adjusting the heat of the heating assembly; the bottom of the extrusion assembly is pressed into the thermally conductive silicone plate to store some of the heat within the thermally conductive silicone. This utility model can adjust the heating temperature and ensure uniform heat distribution, thereby improving production quality.

Description

Technical Field

[0001] This utility model relates to the field of carbon fiber material technology, and in particular to a carbon fiber hot pressing device. Background Technology

[0002] Carbon fiber materials are widely used in aerospace, automotive manufacturing, and sporting goods due to their excellent properties such as light weight, high strength, and corrosion resistance. In the manufacturing process of carbon fiber products, hot pressing is one of the key steps in achieving material curing and molding. Especially when processing carbon fiber prepregs or multilayer composite structures, hot pressing operations are typically performed under specific temperature and pressure conditions to ensure sufficient interlayer bonding, a smooth product surface, and a dense overall structure.

[0003] In existing carbon fiber hot pressing devices, the common heating structure is that the heating plate directly heats the mold or pressing head. Due to the long heat conduction path and the single contact surface, the heat distribution is uneven. At the same time, the temperature control of traditional devices is not flexible enough and it is difficult to adapt to different materials or process requirements, resulting in unstable temperature control and affecting the curing quality of carbon fiber composite materials. Utility Model Content

[0004] The purpose of this invention is to provide a carbon fiber hot pressing device that solves the problems of inability to adjust heating temperature and uneven heat distribution, which reduce production quality.

[0005] To achieve this objective, the present invention adopts the following technical solution: A carbon fiber hot pressing device includes: a worktable, a thermally conductive silicone plate, a hot pressing assembly, and an adjusting assembly. The top of the worktable is slidably connected to the thermally conductive silicone plate, which is disposed below the hot pressing assembly. The hot pressing assembly is used to heat and extrude fiber materials, and the adjusting assembly is used to adjust the heating temperature. The hot pressing assembly includes an extrusion assembly and a heating assembly. The top of the workbench is fixedly connected to the extrusion assembly, and the interior of the extrusion assembly is fixedly connected to the heating assembly for heating the extrusion assembly. The bottom of the heating assembly is connected to an adjustment assembly for adjusting the heat of the heating assembly. The bottom of the extrusion assembly is pressed into a thermally conductive silicone plate for storing some of the heat within the thermally conductive silicone. The extrusion assembly is used to extrude fibrous materials, and the heating assembly is used to heat the extrusion assembly.

[0006] Preferably, the extrusion assembly includes: a telescopic part and an extrusion part, wherein the telescopic part is fixedly connected to the top end of the worktable, and the extrusion part is fixedly connected to the bottom end of the telescopic part; The extrusion section includes: a guide post and an extrusion block. The extrusion block is fixedly connected to the bottom end of the telescopic section. The periphery of the extrusion block is slidably connected to the guide post. A heating cavity is provided inside the extrusion block.

[0007] Preferably, the telescopic end includes: a fixed frame, a first telescopic cylinder, a connecting rod, and a connecting frame. The fixed frame is fixedly connected to the top of the workbench, the top of the fixed frame is fixedly connected to the first telescopic cylinder, the telescopic end of the first telescopic cylinder passes through the fixed frame and is fixedly connected to the connecting rod, the bottom end of the connecting rod is fixedly connected to the connecting frame, and the bottom end of the connecting frame is fixedly connected to the extrusion block.

[0008] Preferably, the bottom end of the guide column is fixedly connected to the worktable.

[0009] Preferably, the heating assembly includes: a fan, a heating tube, and a fixing plate. The fan is fixedly connected to the interior of the heating chamber. The fixing plate is disposed below the heating tube. A placement groove is formed on the surface of the fixing plate. The placement groove is fixedly connected to the heating tube. A through hole is formed below the heating tube inside the placement groove.

[0010] Preferably, the fixing plate is fixedly connected inside the heating chamber.

[0011] Preferably, the adjusting assembly includes: a phase change metal plate, a first rack, a second rack, and a partition. The phase change metal plate is disposed inside the bottom end of the extrusion block. One end of the phase change metal plate is fixedly connected to the first rack. The first rack meshes with a rotating gear. The rotating gear meshes with the second rack. The first rack and the second rack are symmetrically arranged about the rotating gear. The other end of the first rack is fixedly connected to a spring. The top ends of the first rack and the second rack are respectively fixedly connected to the partition. The first rack and the second rack are respectively slidably connected to the interior of the extrusion block.

[0012] Preferably, a second telescopic cylinder is fixedly connected to one end of the workbench, the telescopic end of the second telescopic cylinder is fixedly connected to a fixed rod, and one end of the fixed rod is fixedly connected to a thermally conductive silicone plate.

[0013] Compared with the prior art, the present invention has the following beneficial effects: When carbon fiber is hot-pressed, it is first placed on a thermally conductive silicone plate. Then, the extrusion assembly at the top of the worktable is manually activated to start pressing downwards. At the same time, the heating assembly is activated to heat the extrusion assembly. When the temperature of the extrusion assembly becomes too high, the regulating assembly senses the high temperature and moves between the heating assembly and the extrusion assembly to absorb and prevent the heat generated by the heating assembly. Then, the extrusion assembly presses the carbon fiber downwards onto the thermally conductive silicone plate. The extrusion assembly transfers some of the heat to the thermally conductive silicone plate for storage through heat transfer. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] The structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a structural schematic diagram of the first telescopic cylinder, connecting frame, and extrusion block of this utility model. Figure 3 This is a partial cross-sectional structural diagram of the connecting rod and partition of this utility model; Figure 4 for Figure 3 A magnified partial structural diagram at point A in the middle; Figure 5 This is a schematic diagram of the phase change metal plate and rotating gear of this utility model.

[0017] Illustrations: 1. Workbench; 2. Hot pressing assembly; 3. Adjustment assembly; 210. Extrusion assembly; 2110. Telescopic part; 2111. Fixing frame; 2112. First telescopic cylinder; 2113. Connecting rod; 2114. Connecting frame; 2120. Extrusion section; 2121. Guide post; 2122. Extrusion block; 220. Heating component; 221. Phase change metal plate; 222. First rack; 223. Second rack; 224. Partition plate; 225. Rotating gear; 301. Fan; 302. Heating element; 303. Fixing plate; 304. Placement slot; 305. Through hole; 4. Thermally conductive silicone plate; 5. Second telescopic cylinder; 6. Fixing rod. Detailed Implementation

[0018] To make the utility model's objectives, features, and advantages more apparent and understandable, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0019] In the description of this utility model, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be a component centrally located at the same time.

[0020] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0021] refer to Figures 1-5 As shown, this utility model embodiment provides a carbon fiber hot pressing device, including: a workbench 1, a thermally conductive silicone plate 4, a hot pressing assembly 2, and an adjusting assembly 3. The top of the workbench 1 is slidably connected to the thermally conductive silicone plate 4, and the thermally conductive silicone plate 4 is disposed below the hot pressing assembly 2. The hot pressing assembly 2 is used to heat and extrude fiber materials, and the adjusting assembly 3 is used to adjust the heating heat. The thermally conductive silicone plate 4 is a "plate" structure made of thermally conductive silicone material. Thermally conductive silicone is a soft, ductile, and adhesive thermally conductive material used to fill the gap between the heating device and the heat dissipation component, reduce thermal resistance, and enhance heat conduction efficiency. The hot pressing assembly 2 includes an extrusion assembly 210 and a heating assembly 220. The top of the worktable 1 is fixedly connected to the extrusion assembly 210, and the interior of the extrusion assembly 210 is fixedly connected to the heating assembly 220 for heating the extrusion assembly 210. The bottom of the heating assembly 220 is connected to an adjustment assembly 3 for adjusting the heat of the heating assembly 220. The bottom of the extrusion assembly 210 is pressed into a thermally conductive silicone plate 4 to store some of the heat within the thermally conductive silicone. The extrusion assembly 210 is used to extrude fibrous materials, and the heating assembly 220 is used to heat the extrusion assembly 210. refer to Figure 1 , Figure 2 and Figure 3As shown, the extrusion assembly 210 includes: a telescopic part 2110 and an extrusion part 2120. The telescopic part 2110 is fixedly connected to the top end of the worktable 1, and the extrusion part 2120 is fixedly connected to the bottom end of the telescopic part 2110. The telescopic part 2110 is used to drive the extrusion part 2120 by thrust, and the extrusion part 2120 is used to apply the thrust to the carbon fiber material. The telescopic part 2110 includes: a fixed frame 2111, a first telescopic cylinder 2112, a connecting rod 2113, and a connecting frame 2114. The fixed frame 2111 is fixedly connected to the top of the workbench 1. The top of the fixed frame 2111 is fixedly connected to the first telescopic cylinder 2112. The telescopic end of the first telescopic cylinder 2112 passes through the fixed frame 2111 and is fixedly connected to the connecting rod 2113. The bottom end of the connecting rod 2113 is fixedly connected to the connecting frame 2114. The bottom end of the connecting frame 2114 is fixedly connected to the extrusion block 2122.

[0022] When it is necessary to compress the material, the telescopic end of the first telescopic cylinder 2112 drives the connecting rod 2113 to move downward. Then the connecting rod 2113 drives the connecting frame 2114 to move, so that the connecting frame 2114 drives the extrusion part 2120 to move downward synchronously to compress the material.

[0023] refer to Figure 1 and Figure 3 As shown, the extrusion part 2120 includes: a guide post 2121 and an extrusion block 2122. The extrusion block 2122 is fixedly connected to the bottom end of the telescopic part 2110. The periphery of the extrusion block 2122 is slidably connected to the guide post 2121. A heating cavity is provided inside the extrusion block 2122.

[0024] When the connecting frame 2114 drives the extrusion section 2120 to move downward, the connecting frame 2114 drives the extrusion block 2122 to move downward through the guide column 2121. Since the guide column 2121 is fixedly connected to the worktable 1, the connecting frame 2114 extrudes the material on the worktable 1 through the guidance of the guide column 2121.

[0025] refer to Figure 3 and Figure 4 As shown, the heating assembly 220 includes a fan 301, a heating tube 302, and a fixing plate 303. The fan 301 is fixedly connected to the interior of the heating chamber. The fixing plate 303 is disposed below the heating tube 302. A placement groove 304 is provided on the surface of the fixing plate 303. The interior of the placement groove 304 is fixedly connected to the heating tube 302. A through hole 305 is provided below the heating tube 302 inside the placement groove 304.

[0026] While the extrusion block 2122 is pressing downwards, since the heating tube 302 is electrically connected to an external power source, the external power source is turned on to heat the heating tube 302. Then, the fan 301 is started, and the fan 301 begins to blow airflow into the heating chamber. The blown airflow diffuses the heat of the heating tube 302 into the extrusion block 2122 through the through hole 305, thereby causing the temperature of the extrusion block 2122 to rise slowly. As a result, the high-temperature extrusion block 2122 presses the carbon fiber material downwards, thereby achieving carbon fiber hot pressing.

[0027] refer to Figures 1-5 As shown, the adjusting component 3 includes: a phase change metal plate 221, a first rack 222, a second rack 223, and a partition 224. The phase change metal plate 221 is disposed inside the bottom end of the extrusion block 2122. One end of the phase change metal plate 221 is fixedly connected to the first rack 222. The first rack 222 meshes with a rotating gear 225. The rotating gear 225 meshes with the second rack 223. The first rack 222 and the second rack 223 are symmetrically arranged about the rotating gear 225. A spring is fixedly connected to the other end of the rack 222. The top ends of the first rack 222 and the second rack 223 are fixedly connected to the partition 224, respectively. The first rack 222 and the second rack 223 are slidably connected to the inside of the extrusion block 2122, respectively. The phase change metal plate 221 is a "plate" structure made of phase change metal material. Phase change metal refers to a material that can undergo reversible transformation between different phase states (such as metallic state and insulating state). Its transformation is usually accompanied by significant changes in crystal structure, electronic structure and physical properties.

[0028] When the heating tube 302 heats the extrusion plate to a high temperature, its phase change metal plate 221 begins to deform due to heat. Subsequently, the phase change metal plate 221 begins to push the first rack 222 to move along the first direction, so that the first rack 222 drives the rotating gear 225 to rotate through meshing. Then, the rotating gear 225 drives the second rack 223 to move along the second direction through meshing. Thus, the first rack 222 and the second rack 223 respectively drive the partition 224 to move closer to each other, so that the two partitions 224 are in contact to prevent the heating tube 302 from overheating the extrusion block 2122, and prevent the extrusion block 2122 from being overheated and damaged.

[0029] Working principle: Before the carbon fiber is hot-pressed, its first telescopic cylinder 2112 drives the connecting rod 2113 to pull the connecting frame 2114 and the extrusion block 2122 upward, so that the extrusion block 2122 is away from the worktable 1 and above it. At the same time, the second telescopic cylinder 5 drives the heat-conducting silicone plate 4 to the other end of the worktable 1 through the telescopic rod. Its heat-conducting silicone plate 4 is away from the extrusion block 2122 and is not below the extrusion block 2122. The above is the initial state. When the carbon fiber material is hot-pressed, it is first placed on the thermally conductive silicone plate 4, which is fitted with clamps (not shown) to hold the material. Then, the second telescopic cylinder 5 is activated, causing its telescopic end to extend the fixing rod 6. The fixing rod 6 then slides the thermally conductive silicone plate 4 on the worktable 1 below the extrusion block 2122. When the thermally conductive silicone plate 4 is below the extrusion block 2122, the first telescopic cylinder 2112 is manually activated, causing its telescopic end to move the connecting rod 2113 downwards. The connecting rod 2113 then moves the connecting frame 2114 downwards, causing the extrusion block 2122 to move downwards. Since the heating tube 302 is electrically connected to an external power source, the external power is turned on to heat the heating tube 302. Then, the process begins. The fan 301 starts blowing airflow to the electric heater, and the blown airflow diffuses the heat of the heating tube 302 into the extrusion block 2122 through the through hole 305, so that the temperature of the extrusion block 2122 slowly rises. When the heating tube 302 heats the extrusion plate to a high temperature, its phase change metal plate 221 begins to deform due to heat. Then the phase change metal plate 221 begins to push the first rack 222 to move along the first direction, so that the first rack 222 drives the rotating gear 225 to rotate through meshing. Then the rotating gear 225 drives the second rack 223 to move along the second direction through meshing. Thus, the first rack 222 and the second rack 223 respectively drive the partition 224 to move closer to each other, so that the two partitions 224 contact and connect to prevent the heating tube 302 from overheating the extrusion block 2122, so that the high-temperature extrusion block 2122 extrudes the carbon fiber material downward.

[0030] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model 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 do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A carbon fiber hot pressing device, characterized in that, include: The workbench (1), the thermally conductive silicone plate (4), the hot pressing assembly (2) and the adjusting assembly (3) are provided. The top of the workbench (1) is slidably connected to the thermally conductive silicone plate (4), and the thermally conductive silicone plate (4) is located below the hot pressing assembly (2). The hot pressing assembly (2) is used to heat and extrude fiber materials, and the adjusting assembly (3) is used to adjust the heating heat. The hot pressing assembly (2) includes an extrusion assembly (210) and a heating assembly (220). The top of the workbench (1) is fixedly connected to the extrusion assembly (210), and the interior of the extrusion assembly (210) is fixedly connected to the heating assembly (220) for heating the extrusion assembly (210). The bottom of the heating assembly (220) is connected to the adjustment assembly (3) for adjusting the heat of the heating assembly (220). The bottom of the extrusion assembly (210) is pressed together with the thermally conductive silicone plate (4) for storing some of the heat in the thermally conductive silicone. The extrusion assembly (210) is used to extrude fibrous materials, and the heating assembly (220) is used to heat the extrusion assembly (210).

2. The carbon fiber hot pressing device according to claim 1, characterized in that, The extrusion assembly (210) includes: a telescopic part (2110) and an extrusion part (2120), wherein the telescopic part (2110) is fixedly connected to the top of the workbench (1), and the extrusion part (2120) is fixedly connected to the bottom of the telescopic part (2110); The extrusion part (2120) includes: a guide post (2121) and an extrusion block (2122). The extrusion block (2122) is fixedly connected to the bottom end of the telescopic part (2110). The periphery of the extrusion block (2122) is slidably connected to the guide post (2121). A heating cavity is provided inside the extrusion block (2122).

3. The carbon fiber hot pressing device according to claim 2, characterized in that, The telescopic part (2110) includes: a fixed frame (2111), a first telescopic cylinder (2112), a connecting rod (2113), and a connecting frame (2114). The fixed frame (2111) is fixedly connected to the top of the workbench (1). The top of the fixed frame (2111) is fixedly connected to the first telescopic cylinder (2112). The telescopic end of the first telescopic cylinder (2112) passes through the fixed frame (2111) and is fixedly connected to the connecting rod (2113). The bottom end of the connecting rod (2113) is fixedly connected to the connecting frame (2114). The bottom end of the connecting frame (2114) is fixedly connected to the extrusion block (2122).

4. The carbon fiber hot pressing device according to claim 3, characterized in that, The bottom end of the guide column (2121) is fixedly connected to the worktable (1).

5. The carbon fiber hot pressing device according to claim 4, characterized in that, The heating assembly (220) includes a fan (301), a heating tube (302), and a fixing plate (303). The fan (301) is fixedly connected to the interior of the heating chamber. The fixing plate (303) is located below the heating tube (302). A placement groove (304) is provided on the surface of the fixing plate (303). The interior of the placement groove (304) is fixedly connected to the heating tube (302). A through hole (305) is provided below the heating tube (302) inside the placement groove (304).

6. The carbon fiber hot pressing device according to claim 5, characterized in that, The fixing plate (303) is fixedly connected inside the heating chamber.

7. The carbon fiber hot pressing device according to claim 1, characterized in that, The adjustment component (3) includes: a phase change metal plate (221), a first rack (222), a second rack (223), and a partition (224). The phase change metal plate (221) is disposed inside the bottom end of the extrusion block (2122). One end of the phase change metal plate (221) is fixedly connected to the first rack (222). The first rack (222) is meshed with a rotating gear (225). The rotating gear (225) is meshed with the second rack (223). The first rack (222) and the second rack (223) are symmetrically arranged with the rotating gear (225) as the center. The other end of the first rack (222) is fixedly connected to a spring. The top ends of the first rack (222) and the second rack (223) are fixedly connected to the partition (224) respectively. The first rack (222) and the second rack (223) are slidably connected to the inside of the extrusion block (2122).

8. A carbon fiber hot pressing device according to claim 7, characterized in that, One end of the workbench (1) is fixedly connected to a second telescopic cylinder (5), the telescopic end of the second telescopic cylinder (5) is fixedly connected to a fixed rod (6), and one end of the fixed rod (6) is fixedly connected to a thermally conductive silicone plate (4).

Images