Carbon fiber autoclave molding and molding method

Abstract

The present invention belongs to the technical field of carbon fiber molding, and discloses carbon fiber hot press molding and molding method, including a tank body, a tank cover is arranged on one side of the tank body, a connecting ring is fixedly installed on the outer side of one end of the tank body near the tank cover, a connecting block is fixedly installed on one side of the connecting ring, the connecting block is hinged with one side of the tank cover, an installation groove is opened on the inner wall of one end of the tank body, a first connecting spring is fixedly installed on the inner wall of the installation groove, a movable plate is fixedly installed on one end of the first connecting spring, and a sealing ring is arranged on one side of the movable plate. When the tank cover is closed, the sealing of the tank cover and the tank body is increased inside the installation groove through the sealing ring, and under the movement of the movable plate, under the action of the first rack, the gear and the second rack, and under the push of the second movable plate, the movable block is fitted with the inner wall of the tank cover, pressed against the inner wall of the tank cover, thereby improving the stability of the tank cover connection, preventing the tank cover from being easily deformed, and preventing the tank body from leaking, causing energy waste.

Description

Technical Field

[0001] The invention belongs to the technical field of carbon fiber molding, and in particular relates to carbon fiber autoclave molding and a molding method. Background Art

[0002] Carbon fiber has excellent properties such as high strength, high modulus, high temperature resistance, corrosion resistance, fatigue resistance, creep resistance, electrical conductivity, heat transfer, low relative density and low thermal expansion coefficient. It is widely used in many fields such as aerospace, medical equipment, new energy, transportation, electronics and electrical, and machinery. Carbon fiber autoclave, as a system equipment specifically for the curing of carbon fiber composite materials, has the functions of timing and real-time online control of process parameters such as temperature, pressure, vacuum, cooling, and circulation. The method of forming a carbon fiber autoclave is to lay the carbon fiber prepreg on the mold according to specific laying requirements, then seal the blank in a vacuum bag, and place it in a carbon fiber autoclave for curing. In a vacuum environment, through a complete set of processes such as heating, pressurizing, heat preservation, cooling and pressure relief of the autoclave equipment, the carbon fiber composite material can be fully cured by utilizing its internal uniform temperature and pressure conditions.

[0003] In the prior art, during the process of increasing pressure, decreasing pressure, increasing temperature and decreasing temperature of the autoclave, the speed is too fast, and the temperature and pressure of various parts of the tank cover change unevenly, which will produce large thermal stress and pressure difference, making the tank cover easy to deform, so that the tank cover and the autoclave body are no longer tightly fitted, resulting in easy leakage of high-temperature and high-pressure gas in the tank, reducing the pressure and temperature stability in the tank, and causing energy waste. Summary of the invention

[0004] The present invention aims at the problems in the prior art and proposes the following technical solutions: carbon fiber hot press tank forming and forming method, including a tank body, a tank cover is arranged on one side of the tank body, a connecting ring is fixedly installed on the outer side of one end of the tank body close to the tank cover, a connecting block is fixedly installed on one side of the connecting ring, the connecting block is hinged to one side of the tank cover, an installation groove is opened on the inner wall of one end of the tank body, a first connecting spring is fixedly installed on the inner wall of the installation groove, a movable plate is fixedly installed on one end of the first connecting spring, a sealing ring is arranged on one side of the movable plate, one side of the sealing ring is fixedly installed on one side of the tank cover, first mounting blocks are fixedly installed on the inner walls of both sides of the tank body, a movable opening is opened on one side of the first mounting block, the movable opening passes through the inner wall of the tank body and communicates with the mounting groove, and the movable plate A first rack is fixedly installed on one side near the movable opening, a gear is meshed on one side of the first rack, a rotating rod is fixedly installed in the middle of the gear, a second rack is meshed on one side of the gear, a first movable plate is arranged at one end of the second rack, the outer side of the first movable plate is movably connected to the inner wall of the tank cover, a moving rod is fixedly installed on one side of the first movable plate, a moving block is fixedly installed on one side of the moving rod, one side of the moving block is hinged to the first rotating plate, a movable block is hinged at one end of the first rotating plate, one side of the movable block is fitted with the inner wall of the tank cover, a first compression spring is fixedly installed on one side of the moving block, one end of the first compression spring is fixedly installed on the inner wall of the tank cover, a fixed block is arranged on the outer side of the first compression spring, and one side of the movable block is slidably connected to the top of the fixed block.

[0005] As a preferred embodiment of the above technical solution, a fixing seat is fixedly installed at the bottom of the tank body, a vacuum structure is arranged on one side of the tank body, a circulating fan is arranged on the rear side of the tank body, a heating structure is arranged inside the tank body, and a placing table is arranged inside the tank body.

[0006] As a preferred embodiment of the above technical solution, the movable plate is slidably connected to the inner wall of the mounting groove, the sealing ring is located inside the mounting groove, the sealing ring is located on the outside of the first movable plate, the first rack is located at the movable opening, and it is movably connected to the inner wall of the movable opening, a slider is fixedly installed on one side of the second rack, the slider is slidably connected to the inner wall of the first mounting block, support blocks are hinged at both ends of the rotating rod, and the bottom of the support block is fixedly installed on the inner wall of the bottom of the first mounting block.

[0007] As a preferred embodiment of the above technical solution, there are four first rotating plates and four movable blocks, which are distributed in a circular array at the bottom of the movable block. The movable block is arc-shaped on the side close to the inner wall of the tank cover. A telescopic rod is provided in the middle of the first compression spring, and one end of the telescopic rod is fixedly mounted on the inner wall of the tank cover.

[0008] As a preferred embodiment of the above technical solution, a plurality of slots are provided on the side of the connecting ring close to the tank cover, an insert block is fixedly installed on one side of the tank cover, the insert block is plugged into the slot, a limiting opening is provided at one end of the insert block, a pushing rod is fixedly installed on the side of the movable plate close to the first connecting spring, a round bulge is fixedly installed on one end of the pushing rod, a limiting block is provided on one side of the round bulge, a fixed spring is fixedly installed on the bottom of the limiting block, the limiting block passes through the inner wall of the tank body and is plugged into the installation groove and the limiting opening.

[0009] As a preferred embodiment of the above technical solution, the push rod is located at the top of the first connecting spring, the limiting block is inclined on the side close to the convex part, the fixed spring is located on one side of the first connecting spring, and its bottom is fixed to the inner wall of the mounting groove, and the push rod, the convex part, the limiting block and the fixed spring are distributed in a circular array with the center of the tank cover.

[0010] As a preferred embodiment of the above technical solution, protective shells are provided on the upper and lower sides of the connecting ring, the protective shells are made of elastic heat-insulating material, plug rods are fixedly installed on the upper and lower ends of the left side of the protective shell, sockets are provided on the upper and lower sides of the connecting block, the plug rods are plugged into the sockets, and limiting openings are provided on the upper and lower ends of the connecting block, the limiting opening passes through one end of the plug rod, a first pulling block is provided on one side of the connecting block close to the limiting opening, a second connecting spring is fixedly installed on one side of the first pulling block, a limiting rod is fixedly installed on one end of the second connecting spring, and one end of the limiting rod passes through the limiting opening and is plugged into the plug rod.

[0011] As a preferred embodiment of the above technical solution, a second mounting block is arranged between the upper and lower ends of the right side of the protective shell, a connecting port is opened on the side of the protective shell close to the second mounting block, one side of the second mounting block is fixedly installed with one side of the connecting ring, a second pulling block is arranged on one side of the second mounting block, a movable rod is fixedly installed on one side of the second pulling block, a second movable plate is fixedly installed at the bottom of the movable rod, a second compression spring is fixedly installed at the bottom of the second movable plate, one end of the second compression spring is fixedly installed to the inner wall of the bottom of the mounting block, a moving port is opened on the side of the second mounting block close to the protective shell, second rotating plates are hinged at both ends of the bottom of the first movable plate, a limiting plate is hinged at one end of the second rotating plate, the bottom of the limiting plate is slidably connected to the inner wall of the second mounting block, and one end of the limiting plate is plugged into the connecting port.

[0012] As a preferred embodiment of the above technical solution, the second pulling block is located on one side of the second mounting block, one end of the movable rod passes through one side of the second mounting block and extends to the inside of the second mounting block, the movable rod is movably connected to the second mounting block, both sides of the second movable plate are movably connected to the inner wall of the second mounting block, and one end of the second rotating plate extends through the moving opening to the outside of the second mounting block.

[0013] The present invention also provides a molding method using the carbon fiber autoclave molding method, the method comprising the following steps:

[0014] Step 1: According to the performance requirements of the product, select the appropriate carbon fiber and resin system, evenly impregnate the resin into the carbon fiber fabric or fiber bundle, make prepreg and cut it into a suitable shape and size, select the appropriate mold material, lay the prepreg layer by layer, and after the laying is completed, assemble the mold and related auxiliary components and put it into a vacuum bag for packaging;

[0015] Step 2: Place the packaged mold on the placement table in the autoclave, rotate the tank cover to close it, and when the tank cover is closed, drive the sealing ring to move to the inside of the installation groove, so that the movable plate drives the first rack to move and compresses the first connecting spring, so that the gear drives the rotating rod to rotate along the supporting block, so that the second rack moves and pushes the first movable plate to move toward the inside of the tank cover, and the first movable plate moves along the inner wall of the tank cover and pushes the moving rod and the moving block to move, so that the moving block shrinks the telescopic rod and deflects the first rotating plate, so that the movable block moves along the bottom of the fixed block, so that the arc-shaped side of the first rotating plate fits the inner wall of the tank cover and presses against the inner wall of the tank cover;

[0016] Step 3: When the tank cover is closed, the insert block is inserted into the slot of the connecting ring. When the sealing ring moves into the installation slot, the moving plate drives the push rod to move toward the limiting block, so that the round convex moves along the inclined surface of the limiting block to squeeze the limiting block, so that the limiting block moves away from the installation slot, and the fixed spring is stretched, so that the limiting block passes through the installation slot and the inner wall of the tank body and is plugged into the limiting port, so as to further limit the tank cover;

[0017] Step 4: When the tank cover is closed, the two protective shells are sleeved on the upper and lower sides of the connecting ring, so that the plug rod is plugged into the jacks at the upper and lower ends of the connecting block, and the second pull block, the second connecting spring and the limit rod pass through the limit opening to plug the plug rod, so that the protective shell and the plug rod are fixed on the upper and lower sides of the connecting block, and then the second pull block is moved to make the movable rod move toward the inside of the second mounting block, and push the second movable plate to move along the inner wall of the second mounting block, so that the second rotating plate is deflected, and the limiting plate is pushed to move along the inner wall of the second mounting block, so that one end of the limiting plate moves from the movable opening to both sides of the protective shell, plugs into the connecting opening, limits the protective shell, and improves the stability of the protective shell on the outside of the connecting ring;

[0018] Step 5: According to the characteristics of the prepreg and the requirements of the product, the temperature, pressure, holding time and other process parameters of the autoclave are set through the heating structure, vacuum structure and circulating fan. When the temperature and pressure reach the set value, they are maintained for a period of time to allow the resin to fully cure. After the curing is completed, the temperature of the autoclave is reduced at a certain cooling rate, and the pressure is slowly released until the temperature and pressure drop to room temperature and normal pressure. The placement table is removed from the inside of the tank, and the product is removed from the mold.

[0019] The beneficial effects of the present invention are:

[0020] (1) When the tank cover is closed, the sealing ring is used inside the mounting groove to increase the sealing performance between the tank cover and the tank body. When the movable plate moves, the first rack, the gear and the second rack are used, and the second movable plate pushes the movable block to fit the inner wall of the tank cover and press against the inner wall of the tank cover, thereby improving the stability of the tank cover connection and preventing the temperature and pressure of various parts of the tank cover from changing unevenly due to excessive speed during the pressure increase and decrease and temperature increase and decrease of the autoclave, thereby generating thermal stress and pressure difference, causing the tank cover to be easily deformed, and preventing the tank body from leaking and causing energy waste.

[0021] (2) The present invention connects the protective shell with the connecting block and the second mounting block, so that the protective shell can be installed on the upper and lower sides of the connecting ring. The connecting ring is protected by the protective shell to prevent high temperature burns, thereby further improving the sealing and stability between the connecting ring, the tank cover and the tank body. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 What is shown is a schematic diagram of the overall structure of the embodiment;

[0023] Figure 2 What is shown is the structural diagram of the tank body and the tank cover of the embodiment;

[0024] Figure 3 Shown is a cross-sectional view of the overall structure of the embodiment;

[0025] Figure 4 The embodiment shown is Figure 3 A in the enlarged view;

[0026] Figure 5 Shown is a cross-sectional view of an embodiment tank body;

[0027] Figure 6 Shown is a structural diagram of an embodiment of a can lid;

[0028] Figure 7 What is shown is the structural diagram of the connecting ring and the tank cover of the embodiment;

[0029] Figure 8 Shown is a cross-sectional view of an embodiment tank body;

[0030] Fig. 9 What is shown is a structural diagram of a protective shell of an embodiment;

[0031] Fig.10 Shown is a cross-sectional view of a second mounting block of an embodiment.

[0032] In the figure: 1, tank body; 2, tank cover; 3, connecting ring; 4, connecting block; 5, first connecting spring; 6, moving plate; 7, sealing ring; 8, first mounting block; 9, first rack; 10, gear; 11, second rack; 12, first movable plate; 13, moving rod; 14, moving block; 15, first rotating plate; 16, movable block; 17, telescopic rod; 18, fixed block; 19, vacuum structure; 20, circulating fan; 21, placing table; 22, slider; 23, supporting block; 24, inserting block; 25, pushing rod; 26, convex; 27, limiting block; 28, protective shell; 29, inserting rod; 30, first pulling block; 31, second connecting spring; 32, limiting rod; 33, second mounting block; 34, second pulling block; 35, movable rod; 36, second movable plate; 37, second compression spring; 38, second rotating plate; 39, limiting plate. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0034] The present invention provides carbon fiber autoclave molding and molding method, such as Figures 1 to 7 As shown, it includes a tank body 1, a tank cover 2 is arranged on one side of the tank body 1, a connecting ring 3 is fixedly installed on the outer side of one end of the tank body 1 close to the tank cover 2, a connecting block 4 is fixedly installed on one side of the connecting ring 3, and the connecting block 4 is hinged to one side of the tank cover 2, a mounting groove is arranged on the inner wall of one end of the tank body 1, a first connecting spring 5 is fixedly installed on the inner wall of the mounting groove, a movable plate 6 is fixedly installed on one end of the first connecting spring 5, a sealing ring 7 is arranged on one side of the movable plate 6, and one side of the sealing ring 7 is fixedly installed on one side of the tank cover 2, first mounting blocks 8 are fixedly installed on the inner walls of both sides of the tank body 1, a movable opening is arranged on one side of the first mounting block 8, the movable opening passes through the inner wall of the tank body 1 and communicates with the mounting groove, a first rack 9 is fixedly installed on one side of the movable plate 6 close to the movable opening, and one side of the first rack 9 is meshed with Gear 10, a rotating rod is fixedly installed in the middle of the gear 10, a second rack 11 is meshed with one side of the gear 10, a first movable plate 12 is arranged at one end of the second rack 11, the outer side of the first movable plate 12 is movably connected to the inner wall of the tank cover 2, a moving rod 13 is fixedly installed on one side of the first movable plate 12, a moving block 14 is fixedly installed on one side of the moving rod 13, a first rotating plate 15 is hinged on one side of the moving block 14, a movable block 16 is hinged on one end of the first rotating plate 15, one side of the movable block 16 is fitted with the inner wall of the tank cover 2, a first compression spring is fixedly installed on one side of the moving block 14, one end of the first compression spring is fixedly installed on the inner wall of the tank cover 2, a fixed block 18 is arranged on the outer side of the first compression spring, and one side of the movable block 16 is slidably connected to the top of the fixed block 18.

[0035] According to the performance requirements of the product, a suitable carbon fiber and resin system is selected, and the resin is evenly impregnated into the carbon fiber fabric or fiber bundle to make a prepreg cut into a suitable shape and size. A suitable mold material is selected, and the prepreg is laid layer by layer. After the laying is completed, the mold and related auxiliary components are assembled, and the mold is placed in a vacuum bag for packaging. The tank cover 2 is rotated to open it, and the tank cover 2 drives the sealing ring 7 to move out of the installation groove, so that the sealing ring 7 no longer pushes the movable plate 6 to move, and the first connecting spring 5 is no longer squeezed, thereby pushing the movable plate 6 to drive the first rack 9 to move toward the sealing ring 7. The movement of the first rack 9 causes the gear 10 to drive the rotating rod to rotate, and the second rack 11 is moved toward the inside of the first mounting block 8. At the same time, the first movable plate 12 is no longer pressed by the second rack 11. Through the action of the first compression spring, the first movable plate 12 moves along the inner wall of the tank cover 2, and drives the movable rod 13 and the movable block 14 to move in the direction away from the fixed block 18, so that the first rotating plate 15 is no longer squeezed, thereby driving the movable block 16 to move along the fixed block 18. The mold is no longer in contact with the inner wall of the can cover 2, and then the packaged mold is placed on the placement table 21 in the autoclave, and the can cover 2 is rotated to close it. When the can cover 2 is closed, the sealing ring 7 is driven to move to the inside of the installation groove, so that the movable plate 6 drives the first rack 9 to move and compress the first connecting spring 5, so that the gear 10 drives the rotating rod to rotate, so that the second rack 11 moves and pushes the first movable plate 12 to move toward the inside of the can cover 2, and the first movable plate 12 moves along the inner wall of the can cover 2 and pushes the moving rod 13 and the moving block 14 to move, so that The movable block 14 contracts the telescopic rod 17 and deflects the first rotating plate 15, so that the movable block 16 moves along the bottom of the fixed block 18, so that the arc-shaped side of the first rotating plate 15 fits against the inner wall of the tank cover 2, and presses against the inner wall of the tank cover 2, thereby improving the stability of the connection of the tank cover 2, preventing the temperature and pressure of various parts of the tank cover 2 from changing unevenly due to excessive speed during the pressure increase, pressure decrease, temperature increase, and temperature decrease process of the autoclave, thereby generating thermal stress and pressure difference, making the tank cover 2 easily deformed, and preventing the tank body 1 from leaking and causing energy waste.

[0036] like Figure 1 , Figure 5 As shown, a fixing seat is fixedly installed at the bottom of the tank body 1, a vacuum structure 19 is arranged on one side of the tank body 1, a circulating fan 20 is arranged on the rear side of the tank body 1, a heating structure is arranged inside the tank body 1, and a placing table 21 is arranged inside the tank body 1.

[0037] The fixing seat can be used to improve the stability of the tank body 1, and the material to be solidified is placed on the placement table 21. The vacuum structure 19 and the circulating fan 20 can be used to maintain a vacuum environment inside the tank body 1. In the vacuum environment, the heating structure can be used to carry out a whole set of processes such as heating, pressurizing, keeping warm, cooling and depressurizing inside the tank body 1. The uniform temperature and pressure conditions inside the tank body can be used to fully solidify the material for easy use.

[0038] like Figure 3 , Figure 4 , Figure 5 , Figure 7 As shown, the movable plate 6 is slidably connected to the inner wall of the mounting groove, the sealing ring 7 is located inside the mounting groove, the sealing ring 7 is located on the outside of the first movable plate 12, the first rack 9 is located at the movable opening, and is movably connected to the inner wall of the movable opening, a slider 22 is fixedly installed on one side of the second rack 11, the slider 22 is slidably connected to the inner wall of the first mounting block 8, support blocks 23 are hinged at both ends of the rotating rod, and the bottom of the support block 23 is fixedly installed to the bottom inner wall of the first mounting block 8.

[0039] When the tank cover 2 is closed, the sealing ring 7 of the tank cover 2 is located inside the mounting groove, and the sealing ring 7 pushes the movable plate 6 to move along the inside of the mounting groove, so that the movable plate 6 drives the first rack 9 to move, and the gear 10 drives the rotating rod to rotate along the support block 23 to improve the stability of the rotation of the gear 10, so that the second rack 11 drives the slider 22 to move along the inner wall of the first mounting groove, and improves the stability of the movement of the second rack 11, so that the second rack 11 can push the second movable plate 36 to move, so that under the action of the moving rod 13 and the moving block 14, the first rotating plate 15 is deflected, so that the movable block 16 can be pressed against the inner wall of the tank cover 2, and the stability of the connection between the tank cover 2 and the tank body 1 is achieved.

[0040] like Figure 3 , Figure 6 As shown, there are four first rotating plates 15 and four movable blocks 16, which are distributed in a circular array at the bottom of the moving block 14. The movable block 16 is arc-shaped on one side close to the inner wall of the tank cover 2. A telescopic rod 17 is provided in the middle of the first compression spring, and one end of the telescopic rod 17 is fixedly installed on the inner wall of the tank cover 2.

[0041] The first rotating plate 15 and the movable block 16 are distributed in a circular array, so that the arc-shaped side of the movable block 16 is in close contact with the inner wall of the tank cover 2, thereby improving the stability of the connection of the tank cover 2. The extension and retraction of the telescopic rod 17 and the compression of the first compression spring facilitate the stability of the movable block 14 when moving.

[0042] like Figures 3 to 7As shown, a plurality of slots are provided on the side of the connecting ring 3 close to the tank cover 2, an insert block 24 is fixedly installed on one side of the tank cover 2, the insert block 24 is plugged into the slot, a limiting opening is provided at one end of the insert block 24, a pushing rod 25 is fixedly installed on the side of the movable plate 6 close to the first connecting spring 5, a round protrusion 26 is fixedly installed on one end of the pushing rod 25, a limiting block 27 is arranged on one side of the round protrusion 26, a fixing spring is fixedly installed on the bottom of the limiting block 27, the limiting block 27 passes through the inner wall of the tank body 1, the mounting groove and is plugged into the limiting opening, the pushing rod 25 is located at the top of the first connecting spring 5, the side of the limiting block 27 close to the round protrusion 26 is an inclined surface, the fixing spring is located on one side of the first connecting spring 5, and its bottom is fixedly installed on the inner wall of the mounting groove, the pushing rod 25, the round protrusion 26, the limiting block 27 and the fixing spring are distributed in a circular array with the center of the tank cover 2.

[0043] When the tank cover 2 is closed, the insert block 24 is inserted into the slot of the connecting ring 3, so that the tank cover 2 is connected to the tank body 1. When the sealing ring 7 moves to the inside of the mounting groove, the movable plate 6 drives the push rod 25 to move toward the limiting block 27, so that the convex 26 moves along the inclined surface of the limiting block 27 to squeeze the limiting block 27, so that the limiting block 27 moves away from the mounting groove. The fixed spring is stretched, so that the limiting block 27 passes through the mounting groove and is plugged into the limiting opening of the inner wall of the tank body 1, so as to further limit the tank cover 2. The push rod 25, the convex 26, the limiting block 27 and the fixed spring distributed in a circular array can improve the sealing and stability of the tank cover 2, the sealing ring 7 and the tank body 1, and prevent deformation.

[0044] like Figures 8 to 10 As shown, protective shells 28 are provided on the upper and lower sides of the connecting ring 3. The protective shells 28 are made of elastic heat-insulating material. Rods 29 are fixedly installed on the upper and lower ends of the left side of the protective shell 28. Plug holes are provided on the upper and lower sides of the connecting block 4. The plug rod 29 is plugged into the plug holes. Limiting openings are provided on the upper and lower ends of the connecting block 4. The limiting opening passes through one end of the plug rod 29. A first pulling block 30 is provided on one side of the connecting block 4 close to the limiting opening. A second connecting spring 31 is fixedly installed on one side of the first pulling block 30. A limiting rod 32 is fixedly installed on one end of the second connecting spring 31. One end of the limiting rod 32 passes through the limiting opening and is plugged into the plug rod 29.

[0045] By installing the protective shell 28 made of elastic heat-insulating material on the upper and lower sides of the connecting ring 3, it is convenient to protect the outer side of the connecting ring 3, and it can prevent high-temperature burns, thereby improving the safety of use. When the protective shell 28 needs to be installed on the upper and lower sides of the connecting ring 3, pull the first pull block 30 to stretch the second connecting spring 31 and drive the limit rod 32 to move out of the limit opening, and then install the protective shell 28 on the upper and lower sides of the connecting ring 3, so that the insertion rod 29 is inserted into the jacks on the upper and lower sides of the connecting block 4, and then push the first pull block 30 and under the action of the second connecting spring 31, push the limit rod 32 through the limit opening and plug it into the insertion rod 29, so that the insertion rod 29 is limited, so that the left side of the protective shell 28 is fixed, thereby improving the stability of the installation of the protective shell 28.

[0046] like Figures 9 and 10 As shown, a second mounting block 33 is provided between the upper and lower ends of the right side of the protective shell 28, a connecting port is provided on the side of the protective shell 28 close to the second mounting block 33, one side of the second mounting block 33 is fixedly installed with one side of the connecting ring 3, a second pulling block 34 is provided on one side of the second mounting block 33, a movable rod 35 is fixedly installed on one side of the second pulling block 34, a second movable plate 36 is fixedly installed at the bottom of the movable rod 35, a second compression spring 37 is fixedly installed at the bottom of the second movable plate 36, one end of the second compression spring 37 is fixedly installed with the inner wall of the second mounting block 33, and a moving port is provided on the side of the second mounting block 33 close to the protective shell 28, second rotating plates 38 are hinged at both ends of the bottom of the first movable plate 12, a limiting plate 39 is hinged at one end of the second rotating plate 38, the bottom of the limiting plate 39 is slidably connected to the inner wall of the second mounting block 33, and one end of the limiting plate 39 is plugged into the connecting port.

[0047] When the left side of the protective shell 28 is fixed, the second pulling block 34 is moved toward the inside of the second mounting block 33, so that the movable rod 35 moves toward the inside of the second mounting block 33, and pushes the second movable plate 36 to move along the inner wall of the second mounting block 33, so that the second rotating plate 38 is deflected, and pushes the limiting plate 39 to move along the inner wall of the second mounting block 33, so that one end of the limiting plate 39 moves from the moving port to both sides of the protective shell 28, and is plugged into the connecting port, thereby limiting the right side of the protective shell 28 and improving the stability of the protective shell 28 on the outside of the connecting ring 3.

[0048] like Fig.10 As shown, the second pulling block 34 is located on one side of the second mounting block 33, one end of the movable rod 35 passes through one side of the second mounting block 33 and extends to the inside of the second mounting block 33, the movable rod 35 is movably connected to the second mounting block 33, both sides of the second movable plate 36 are movably connected to the inner wall of the second mounting block 33, and one end of the second rotating plate 38 passes through the moving opening and extends to the outside of the second mounting block 33.

[0049] The second pulling block 34 is used to facilitate the movement of the second mounting block 33, so that the second mounting block 33 can drive the movable rod 35 and the second movable plate 36 to move, so that the second compression spring 37 can be compressed or stretched, so as to facilitate the deflection of the second rotating plate 38 and move the limiting plate 39 along the inner wall of the second mounting block 33. When the limiting plate 39 moves from the moving port to the connecting port and is plugged in therewith, the protective shell 28 can be limited. When the limiting plate 39 is separated from the connecting port and moves from the moving port to the inside of the second mounting block 33, the limiting plate 39 is no longer plugged in therewith, thereby facilitating the disassembly and replacement of the protective shell 28.

[0050] The present invention also provides a molding method using the carbon fiber autoclave molding method, the method comprising the following steps:

[0051] Step 1: According to the performance requirements of the product, select the appropriate carbon fiber and resin system, evenly impregnate the resin into the carbon fiber fabric or fiber bundle, make prepreg and cut it into a suitable shape and size, select the appropriate mold material, lay the prepreg layer by layer, and after the laying is completed, assemble the mold and related auxiliary components and put it into a vacuum bag for packaging;

[0052] Step 2: Place the packaged mold on the placement table 21 in the autoclave, rotate the tank cover 2 to close it, and when the tank cover 2 is closed, drive the sealing ring 7 to move to the inside of the installation groove, so that the movable plate 6 drives the first rack 9 to move and compresses the first connecting spring 5, so that the gear 10 drives the rotating rod to rotate along the supporting block 23, so that the second rack 11 moves and pushes the first movable plate 12 to move toward the inside of the tank cover 2, and the first movable plate 12 moves along the inner wall of the tank cover 2 and pushes the moving rod 13 and the moving block 14 to move, so that the moving block 14 makes the telescopic rod 17 contract, and deflects the first rotating plate 15, so that the movable block 16 moves along the bottom of the fixed block 18, so that the arc-shaped side of the first rotating plate 15 fits with the inner wall of the tank cover 2 and presses against the inner wall of the tank cover 2;

[0053] Step 3: When the tank cover 2 is closed, the insert block 24 is inserted into the slot of the connecting ring 3. When the sealing ring 7 moves into the installation slot, the moving plate 6 drives the push rod 25 to move toward the limiting block 27, so that the round protrusion 26 moves along the inclined surface of the limiting block 27 to squeeze the limiting block 27, so that the limiting block 27 moves away from the installation slot, and the fixed spring is stretched, so that the limiting block 27 passes through the installation slot and is plugged into the inner wall of the tank body 1 and the limiting port, so as to further limit the tank cover 2;

[0054] Step 4: When the tank cover 2 is closed, the two protective shells 28 are sleeved on the upper and lower sides of the connecting ring 3, so that the insertion rod 29 is plugged into the jacks at the upper and lower ends of the connecting block 4, and the second pull block 34, the second connecting spring 31 and the limiting rod 32 pass through the limiting opening, and the insertion rod 29 is plugged, so that the protective shell 28 and the insertion rod 29 are fixed on the upper and lower sides of the connecting block 4, and then the second pull block 34 is moved to make the movable rod 35 move toward the inside of the second mounting block 33, and push the second movable plate 36 to move along the inner wall of the second mounting block 33, so that the second rotating plate 38 is deflected, and the limiting plate 39 is pushed to move along the inner wall of the second mounting block 33, so that one end of the limiting plate 39 moves from the moving opening to the two sides of the protective shell 28, and plugs into the connecting opening, so as to limit the protective shell 28 and improve the stability of the protective shell 28 on the outside of the connecting ring 3;

[0055] Step 5: According to the characteristics of the prepreg and the requirements of the product, the temperature, pressure, holding time and other process parameters of the autoclave are set through the heating structure, vacuum structure 19 and circulating fan 20. When the temperature and pressure reach the set value, they are maintained for a period of time to allow the resin to fully cure. After the curing is completed, the temperature of the autoclave is reduced at a certain cooling rate, and the pressure is slowly released until the temperature and pressure drop to room temperature and normal pressure. The placement table 21 is taken out from the inside of the tank body 1, and the product is removed from the mold.

[0056] Working principle: When in use, according to the performance requirements of the product, select the appropriate carbon fiber and resin system, evenly impregnate the resin into the carbon fiber fabric or fiber bundle, make prepreg and cut it into a suitable shape and size, select the appropriate mold material, lay the prepreg layer by layer, and after the laying is completed, assemble the mold with related auxiliary components, put it into a vacuum bag for packaging, put the packaged mold on the placement table 21 in the autoclave, turn the tank cover 2 to close it, and when the tank cover 2 is closed, it drives the sealing ring 7 to move to the inside of the installation groove, so that the moving plate 6 drives the first rack 9 to move and compress the first connecting spring 5, so that the gear 10 drives the rotating rod to rotate along the support block 23, so that the second rack 11 moves and pushes the first movable plate 12 to move toward the inside of the tank cover 2, and the first movable plate 12 moves along the inner side of the tank cover 2 The wall moves and pushes the moving rod 13 and the moving block 14 to move, so that the moving block 14 causes the telescopic rod 17 to contract, the first compression spring is compressed, and the first rotating plate 15 is deflected, so that the movable block 16 moves along the bottom of the fixed block 18, so that the arc-shaped side of the first rotating plate 15 is fitted with the inner wall of the tank cover 2, and the inner wall of the tank cover 2 is pressed tightly. When the tank cover 2 is closed, the plug block 24 is inserted into the slot of the connecting ring 3. When the sealing ring 7 moves inside the mounting groove, the moving plate 6 drives the pushing rod 25 to move toward the limiting block 27, so that the round protrusion 26 moves along the inclined surface of the limiting block 27 to squeeze the limiting block 27, so that the limiting block 27 moves away from the mounting groove, and the fixed spring is stretched, so that the limiting block 27 passes through the mounting groove and is plugged into the inner wall of the tank body 1 and the limiting port, so as to further limit the tank cover 2 and improve the stability of the tank cover 2.

[0057] When the tank cover 2 is closed, when the protective shell needs to be installed on the upper and lower sides of the connecting ring 3, the first pulling block 30 is pulled to stretch the second connecting spring 31 and drive the limiting rod 32 to move out of the limiting opening, and then the protective shell 28 is installed on the upper and lower sides of the connecting ring 3, so that the insertion rod 29 is inserted into the jacks on the upper and lower sides of the connecting block 4, and then the first pulling block 30 is pushed and under the action of the second connecting spring 31, the limiting rod 32 is pushed through the limiting opening and the insertion rod 29 is inserted, and the insertion rod 29 is limited so that the left side of the protective shell 28 is fixed, and then the second pulling block 34 is moved to make the movable rod 35 move toward the inside of the second mounting block 33, and push the second movable plate 36 to move along the inner wall of the second mounting block 33, so that the second rotating plate 38 is deflected, and the limiting plate 38 is pushed. The fixed plate 39 moves along the inner wall of the second mounting block 33, so that one end of the limiting plate 39 moves from the moving port to both sides of the protective shell 28, and is plugged into the connecting port to limit the right side of the protective shell 28, thereby improving the stability of the protective shell 28 on the outside of the connecting ring 3. Then, according to the characteristics of the prepreg and the product requirements, the temperature, pressure, holding time and other process parameters of the autoclave are set through the heating structure, the vacuum structure 19 and the circulating fan 20. When the temperature and pressure reach the set value, they are maintained for a period of time to allow the resin to fully cure. After the curing is completed, the temperature of the autoclave is reduced at a certain cooling rate, and the pressure is slowly released until the temperature and pressure drop to room temperature and normal pressure. The placement table 21 is taken out from the inside of the tank body 1, and the product is removed from the mold.

[0058] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them.

Claims

1. Carbon fiber autoclave molding and molding method, comprising a tank body (1), characterized in that: A tank cover (2) is provided on one side of the tank body (1); a connecting ring (3) is fixedly installed on the outer side of one end of the tank body (1) close to the tank cover (2); a connecting block (4) is fixedly installed on one side of the connecting ring (3); the connecting block (4) is hingedly connected to one side of the tank cover (2); a mounting groove is provided on the inner wall of one end of the tank body (1); a first connecting spring (5) is fixedly installed on the inner wall of the mounting groove; a movable plate (6) is fixedly installed on one end of the first connecting spring (5); a sealing ring (7) is provided on one side of the movable plate (6); one side of the sealing ring (7) is fixedly installed on one side of the tank cover (2); first mounting blocks (8) are fixedly installed on the inner walls of both sides of the tank body (1); a movable opening is provided on one side of the first mounting block (8); the movable opening passes through the inner wall of the tank body (1) and communicates with the mounting groove; a first rack (9) is fixedly installed on one side of the movable plate (6) close to the movable opening; a gear (10) is meshed with one side of the first rack (9) 10), a rotating rod is fixedly installed in the middle of the gear (10), a second rack (11) is meshed on one side of the gear (10), a first movable plate (12) is arranged at one end of the second rack (11), the outer side of the first movable plate (12) is movably connected to the inner wall of the tank cover (2), a moving rod (13) is fixedly installed on one side of the first movable plate (12), a moving block (14) is fixedly installed on one side of the moving rod (13), one side of the moving block (14) is hinged to a first rotating plate (15), one end of the first rotating plate (15) is hinged to a movable block (16), one side of the movable block (16) is in contact with the inner wall of the tank cover (2), a first compression spring is fixedly installed on one side of the movable block (14), one end of the first compression spring is fixedly installed to the inner wall of the tank cover (2), a fixed block (18) is arranged on the outer side of the first compression spring, and one side of the movable block (16) is slidably connected to the top of the fixed block (18).

2. The carbon fiber autoclave molding and molding method according to claim 1, characterized in that: A fixing seat is fixedly installed at the bottom of the tank body (1), a vacuum extraction structure (19) is arranged on one side of the tank body (1), a circulating fan (20) is arranged on the rear side of the tank body (1), a heating structure is arranged inside the tank body (1), and a placement table (21) is arranged inside the tank body (1).

3. The carbon fiber autoclave molding and molding method according to claim 1, characterized in that: The movable plate (6) is slidably connected to the inner wall of the mounting groove, the sealing ring (7) is located inside the mounting groove, the sealing ring (7) is located on the outer side of the first movable plate (12), the first rack (9) is located at the movable opening, and is movably connected to the inner wall of the movable opening, a slider (22) is fixedly installed on one side of the second rack (11), the slider (22) is slidably connected to the inner wall of the first mounting block (8), and support blocks (23) are hinged at both ends of the rotating rod, and the bottom of the support block (23) is fixedly installed to the inner wall of the bottom of the first mounting block (8).

4. The carbon fiber autoclave molding and molding method according to claim 1, characterized in that: The number of the first rotating plates (15) and the movable blocks (16) is four, and they are arranged in a circular array at the bottom of the movable block (14); the movable block (16) is arc-shaped on one side close to the inner wall of the tank cover (2); a telescopic rod (17) is arranged in the middle of the first compression spring, and one end of the telescopic rod (17) is fixedly mounted on the inner wall of the tank cover (2).

5. The carbon fiber autoclave molding and molding method according to claim 1, characterized in that: A plurality of slots are provided on a side of the connecting ring (3) close to the tank cover (2); an insert block (24) is fixedly mounted on one side of the tank cover (2); the insert block (24) is plugged into the slots; a limiting opening is provided at one end of the insert block (24); a pushing rod (25) is fixedly mounted on a side of the movable plate (6) close to the first connecting spring (5); a round protrusion (26) is fixedly mounted on one end of the pushing rod (25); a limiting block (27) is provided on one side of the round protrusion (26); a fixing spring is fixedly mounted on the bottom of the limiting block (27); the limiting block (27) passes through the inner wall of the tank body (1), the mounting groove and is plugged into the limiting opening.

6. The carbon fiber autoclave molding and molding method according to claim 5, characterized in that: The push rod (25) is located at the top of the first connecting spring (5); the limiting block (27) is inclined on one side close to the round protrusion (26); the fixing spring is located on one side of the first connecting spring (5) and its bottom is fixedly installed on the inner wall of the installation groove; the push rod (25), the round protrusion (26), the limiting block (27) and the fixing spring are distributed in a circular array with the center of the tank cover (2).

7. The carbon fiber autoclave molding and molding method according to claim 1, characterized in that: The connecting ring (3) is provided with a protective shell (28) on both upper and lower sides, the protective shell (28) is made of elastic heat-insulating material, and the upper and lower ends of the left side of the protective shell (28) are respectively fixedly installed with an insertion rod (29), and the upper and lower sides of the connecting block (4) are provided with a plug hole, and the plug rod (29) is plugged into the plug hole. The upper and lower ends of the connecting block (4) are provided with a limiting opening, and the limiting opening passes through one end of the plug rod (29). A first pulling block (30) is provided on one side of the connecting block (4) close to the limiting opening, and a second connecting spring (31) is fixedly installed on one side of the first pulling block (30), and a limiting rod (32) is fixedly installed on one end of the second connecting spring (31), and one end of the limiting rod (32) passes through the limiting opening and is plugged into the plug rod (29).

8. The carbon fiber autoclave molding and molding method according to claim 7, characterized in that: A second mounting block (33) is provided between the upper and lower ends of the right side of the protective shell (28); a connection port is provided on the side of the protective shell (28) close to the second mounting block (33); one side of the second mounting block (33) is fixedly mounted to one side of the connecting ring (3); a second pull block (34) is provided on one side of the second mounting block (33); a movable rod (35) is fixedly mounted on one side of the second pull block (34); a second movable plate (36) is fixedly mounted on the bottom of the movable rod (35); and the second movable plate (36) A second compression spring (37) is fixedly installed at the bottom, one end of the second compression spring (37) is fixedly installed on the inner wall of the bottom of the mounting block, and a moving opening is opened on the side of the second mounting block (33) close to the protective shell (28). Second rotating plates (38) are hinged at both ends of the bottom of the first movable plate (12), and a limiting plate (39) is hinged at one end of the second rotating plate (38). The bottom of the limiting plate (39) is slidably connected to the inner wall of the second mounting block (33), and one end of the limiting plate (39) is plugged into the connecting port.

9. The carbon fiber autoclave molding and molding method according to claim 8, characterized in that: The second pulling block (34) is located on one side of the second mounting block (33); one end of the movable rod (35) passes through one side of the second mounting block (33) and extends to the inside of the second mounting block (33); the movable rod (35) is movably connected to the second mounting block (33); both sides of the second movable plate (36) are movably connected to the inner wall of the second mounting block (33); and one end of the second rotating plate (38) passes through the movable opening and extends to the outside of the second mounting block (33).

10. A molding method using the carbon fiber autoclave molding method according to any one of claims 1 to 9, characterized in that: The method comprises the following steps: Step 1: According to the performance requirements of the product, select the appropriate carbon fiber and resin system, evenly impregnate the resin into the carbon fiber fabric or fiber bundle, make prepreg and cut it into a suitable shape and size, select the appropriate mold material, lay the prepreg layer by layer, and after the laying is completed, assemble the mold and related auxiliary components and put it into a vacuum bag for packaging; Step 2: Place the packaged mold on the placement table (21) in the autoclave, rotate the can cover (2) to close it, and when the can cover (2) is closed, drive the sealing ring (7) to move to the inside of the installation groove, so that the movable plate (6) drives the first rack (9) to move and compress the first connecting spring (5), so that the gear (10) drives the rotating rod to rotate along the support block (23), so that the second rack (11) moves and pushes the first movable plate (12) to move toward the inside of the can cover (2), and the first movable plate (12) moves along the inner wall of the can cover (2) and pushes the movable rod (13) and the movable block (14) to move, so that the movable block (14) causes the telescopic rod (17) to contract and deflects the first rotating plate (15), so that the movable block (16) moves along the bottom of the fixed block (18), so that the arc-shaped side of the first rotating plate (15) fits the inner wall of the can cover (2) and presses against the inner wall of the can cover (2); Step 3: When the tank cover (2) is closed, the insert block (24) is inserted into the slot of the connecting ring (3). When the sealing ring (7) moves into the installation slot, the moving plate (6) drives the push rod (25) to move toward the limiting block (27), so that the round protrusion (26) moves along the inclined surface of the limiting block (27) to squeeze the limiting block (27), so that the limiting block (27) moves away from the installation slot, and the fixed spring is stretched, so that the limiting block (27) passes through the installation slot and is plugged into the limiting opening of the inner wall of the tank body (1), thereby further limiting the tank cover (2); Step 4: After the tank cover (2) is closed, the two protective shells (28) are placed on the upper and lower sides of the connecting ring (3), so that the plug rod (29) is plugged into the plug holes at the upper and lower ends of the connecting block (4), and the second pull block (34), the second connecting spring (31) and the limit rod (32) are passed through the limit opening to plug the plug rod (29), so that the protective shell (28) and the plug rod (29) are fixed on the upper and lower sides of the connecting block (4), and then the second pull block (34) is moved to make the movable rod ( 35) moves toward the inside of the second mounting block (33) and pushes the second movable plate (36) to move along the inner wall of the second mounting block (33), so that the second rotating plate (38) deflects and pushes the limiting plate (39) to move along the inner wall of the second mounting block (33), so that one end of the limiting plate (39) moves from the moving opening to both sides of the protective shell (28) and plugs into the connecting opening to limit the protective shell (28), thereby improving the stability of the protective shell (28) on the outside of the connecting ring (3); Step 5: According to the characteristics of the prepreg and the requirements of the product, the temperature, pressure and holding time of the autoclave are set through the heating structure, vacuum structure (19) and circulating fan (20). When the temperature and pressure reach the set value, they are maintained for a period of time to allow the resin to fully cure. After the curing is completed, the temperature of the autoclave is reduced at a certain cooling rate, and the pressure is slowly released until the temperature and pressure drop to room temperature and normal pressure. The placement table (21) is taken out from the inside of the tank body (1), and the product is then removed from the mold.

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