Rapid hot press molding equipment for composite material

Abstract

The invention provides rapid hot press molding equipment for a composite material, and relates to the technical field of composite material curing. The rapid hot press molding equipment for the composite material comprises an autoclave, a pressurizing and heating device, a plurality of groups of temperature sensors and a plurality of pressure sensors. The interior of the autoclave is divided into the working cavity located in the middle and the two sets of material changing cavities, when materials are fed into the material changing cavities and composite materials are taken from the material changing cavities, the working cavity is not opened, the composite materials in the material changing cavities are transferred into the working cavity again after the upper sealing cover is closed after feeding or taking is completed, heat loss in the working cavity in the feeding and discharging process is small, and the working efficiency is improved. The time consumed for restarting heating is short, a composite material finished product can be directly transferred to the material changing cavity, then cooled and taken out, the finished product can continue to be fed through the material changing cavity at the front end while being cooled, the intermediate waiting time is effectively shortened, and the production efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of composite material curing, in particular to a composite material rapid hot pressing molding device. Background Art

[0002] Autoclaves are widely used in the molding of composite materials. An autoclave is a pressure vessel with a heating system that can provide the necessary heat and pressure for the compaction and curing of composite materials. When using an autoclave to hot-press composite materials, the composite materials are usually cured at high temperatures. However, after the composite materials are cured, the cooling speed inside the autoclave is slow, making it difficult to quickly dissipate the heat inside the autoclave. It takes a long time to wait, which affects the efficiency of curing the composite materials.

[0003] In order to solve the above problems, there is a public technology on the market that discloses a tank body and an autoclave. The tank body includes a main body, a first partition, a heating component and a ventilation component. The main body has a cavity with an opening at one end. The first partition is arranged in the cavity, and the cavity is divided into a first chamber and a second chamber that are interconnected by the first partition. The heating component is arranged in the second chamber. The ventilation component is connected to the end of the main body away from the opening, and the ventilation component is used to circulate air between the first chamber and the second chamber. In this public technology, the tank body can achieve uniform heating, improve the heating efficiency, and avoid the generation of water vapor. At the same time, the ventilation component can greatly improve the cooling efficiency; However, in the above-mentioned public technology, after the product is solidified, the cooling is performed by vacuuming, cooperating with the cooling component and the ventilation component. Although the cooling speed is improved to a certain extent, the overall processing time is still long, mainly because it takes a long time to heat the inside of the can body to the specified temperature again after it is completely cooled, which greatly affects the processing efficiency; There are also improved technologies on the market that propose a composite material hot pressing molding and curing equipment, including an autoclave; the autoclave is composed of a curing chamber and a recovery chamber, and the curing chamber is close to the opening of the autoclave; an insulation board is fixedly connected to the inside of the autoclave; a sliding plate is slidably connected to the inside of the autoclave; the sliding plate is composed of a circulation part and a gas pumping part; the curing chamber and the recovery chamber of the autoclave can be controlled to be connected by sliding back and forth through the set sliding plate, so that the heat inside the autoclave is transported back and forth between the two chambers, which has the effect of quickly curing and cooling the composite material, and the fan is used to rotate to exhaust and supply air to play a role in heat transportation. The cooling water circulation is transported by the No. 1 duct to increase the cooling speed of the curing chamber. The temporary storage box is used to temporarily store warm water, which can be convenient to use. The arc groove and the circulation groove are used to guide the flow to ensure the circulation and use of cooling water. This improved technology also has the problems that occur in the above-mentioned public technology, that is, the curing chamber must be completely cooled before it can be fully opened, and then the material can be taken out and replaced. The reheating time is long during continuous production. Although part of the heat is supplemented by the recovery chamber, it still affects the overall processing efficiency. In order to solve the problem that the curing chamber needs to be completely cooled before the product can be taken out, resulting in a long waiting time, and the curing chamber takes a long time to reheat after it is completely cooled, affecting the processing efficiency, it is necessary to improve and optimize the structure of the rapid hot pressing molding equipment for composite materials. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention provides a rapid hot pressing molding device for composite materials, which solves the problems in the prior art that the curing chamber of the rapid hot pressing molding device for composite materials needs to be completely cooled before the product can be taken out, resulting in a long waiting time, and the curing chamber takes a long time to be heated again after it is completely cooled, affecting the processing efficiency.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a composite material rapid hot pressing molding equipment, including a hot press tank, a pressurized heating device, multiple groups of temperature sensors and multiple pressure sensors, the hot press tank is supported by a bracket, the front and rear ends of the hot press tank are rotatably connected with sealing covers, the inner wall of the hot press tank is distributed front and back and fixedly connected with two groups of partitions in sequence, the inside of the hot press tank is divided into a working chamber located in the middle and a material replacement chamber located on the front and rear sides of the working chamber by the two groups of partitions, and the inner wall of the partition is provided with a window that is through-through from front to back The inner wall of the window is rotatably connected with two sets of closed doors that open opposite to each other, the lower inner wall of the working chamber is fixedly connected with a hot pressing platform, the lower inner wall of the material changing chamber is slidably connected with a material moving platform, the inner wall of the material changing chamber is provided with a material moving driving structure for transferring materials between the hot pressing platform and the material moving platform, the top of the autoclave is fixedly connected with an equipment box, a ventilation structure for extracting air in the material changing chamber into the working chamber is provided between the equipment box and the autoclave, and an air intake structure for introducing room temperature air into the interior of the material changing chamber is provided on the upper wall of the autoclave.

[0006] Preferably, the lower inner wall of the material changing chamber is provided with a first sliding structure, the material moving platform is slidably connected to the lower inner wall of the material changing chamber via the first sliding structure, a translation driving structure for driving the material moving platform to translate back and forth is provided between the material moving platform and the lower inner wall of the material changing chamber, the inner wall of the material changing chamber is slidably connected with two groups of cross frames via the second sliding structure, the length directions of the two groups of cross frames are parallel to the axial direction of the autoclave and the horizontal heights of the two groups of cross frames are higher than the material moving platform, the material moving driving structure is provided between the cross frame and the material changing chamber, and an opening and closing driving structure for driving the closed door to close and open is provided between the closed door and the inner wall of the material changing chamber.

[0007] Preferably, the ventilation structure includes two groups of air pumps, which are distributed front to back and fixedly connected to the upper wall of the autoclave in sequence and are both located inside the equipment box, the air inlet ends of the two groups of air pumps are fixedly connected to the first air pipe, the ends of the two groups of the first air pipes away from the air pumps respectively penetrate the front wall and the rear wall of the equipment box and extend to the front and rear sides of the equipment box respectively, the ends of the two groups of the first air pipes extending outside the equipment box are respectively connected to the inside of the two groups of refueling chambers, the ends of the two groups of air pumps away from the first air pipe are fixedly connected to the third air pipe, and the ends of the two groups of the third air pipes away from the air pumps are connected to the inside of the working chamber.

[0008] Preferably, the air intake structure includes two groups of second air pipes, the two groups of second air pipes are fixedly connected to the upper wall of the autoclave and are respectively close to the front and rear ends of the autoclave, the ends of the two groups of second air pipes facing the autoclave are respectively connected to the inside of the two groups of refueling chambers, the ends of the second air pipes away from the autoclave are fixedly connected to the air intake muffler, and a section of the outer wall of the second air pipe between the autoclave and the air intake muffler is fixedly connected to the electric control valve.

[0009] Preferably, the first sliding structure includes two groups of slide rails and two groups of sliders, the two groups of sliders are distributed on the left and right and are fixedly connected to the lower wall of the material transfer platform in sequence, the two groups of slide rails are distributed on the left and right and are fixedly connected to the lower wall of the inner side wall of the material exchange chamber in sequence, the length directions of the two groups of slide rails are parallel to the axial direction of the autoclave, the two groups of sliders are slidably connected to one group of slide rails at one side away from the material transfer platform, and the material transfer platform is slidably connected to the lower wall of the inner side of the material exchange chamber through the two groups of slide rails and the sliders.

[0010] Preferably, the translation drive structure includes a motor, a screw and a screw sleeve, the motor is fixedly connected to the inner lower wall of the material changing chamber through a fixed seat and is located at an end away from the partition, the screw is fixedly connected to the end of the motor's extended shaft, the end of the screw away from the motor is rotatably connected to the inner lower wall of the material changing chamber through a rotating seat, the rotating seat is arranged on the inner lower wall of the material changing chamber and is located at an end close to the partition, the lower wall of the material moving platform is fixedly connected with a connecting seat, the screw sleeve is fixedly connected to the inner wall of the connecting seat in a front-to-back penetrating shape, and the section of the screw located between the motor and the rotating seat penetrates the inner wall of the screw sleeve and is threadedly connected thereto.

[0011] Preferably, the second sliding structure comprises four groups of guide sleeves, the four groups of guide sleeves are fixedly connected to the inner left wall and the inner right wall of the material exchange chamber in pairs of two, the inner walls of the four groups of guide sleeves are slidably connected with guide columns, the two groups of cross frames are fixedly connected to one end of the four groups of guide columns facing the axis of the autoclave, and the cross frame is slidably connected to the inner wall of the material exchange chamber through the guide sleeves and the guide columns.

[0012] Preferably, the material transfer drive structure includes two groups of second cylinders, a third cylinder and two groups of push-pull plates, the two groups of second cylinders are respectively fixedly connected to the inner left wall and the inner right wall of the material exchange chamber, the ends of the extended shafts of the two groups of second cylinders are respectively fixedly connected to the opposite sides of the two groups of cross frames, the two groups of third cylinders are respectively fixedly connected to the upper walls of the two groups of cross frames and the extended shafts of the two groups of third cylinders are both arranged at one end facing the partition, and the two groups of push-pull plates are respectively fixedly connected to the ends of the extended shafts of the two groups of third cylinders.

[0013] Preferably, the opening and closing drive structure includes two groups of first cylinders, the two groups of first cylinders are rotatably connected to the inner left wall and the inner right wall of the material exchange chamber respectively, the two groups of first cylinder extension shafts are rotatably connected to the two groups of closed doors on the partition respectively, and the closed doors are driven to close and open by extending and retracting the first cylinder extension shafts.

[0014] Preferably, the upper wall of the material moving platform and the upper wall of the hot pressing platform are flush with the lower inner wall of the window in the partition, and the left-right width of the material moving platform and the hot pressing platform are smaller than the left-right width of the window in the partition.

[0015] The present invention provides a composite material rapid hot pressing molding device, which has the following beneficial effects: Compared with the prior art, the composite material rapid hot pressing forming equipment divides the interior of the autoclave into a working chamber in the middle and two groups of material changing chambers on the front and rear sides of the working chamber by two groups of partitions. When feeding into the material changing chamber or taking out the composite material from the material changing chamber, the working chamber is not opened. After the loading or taking out is completed and the upper sealing cover is closed, the composite material in the material changing chamber is transferred to the working chamber again. During the material transfer process, the hot air that runs from the working chamber to the material changing chamber is pumped back into the working chamber through the vacuum pump. During the loading and unloading process, the heat loss in the working chamber is small, and the time taken to start heating again is short, which effectively improves the processing efficiency.

[0016] Compared with the prior art, in this composite material rapid hot pressing molding equipment, the composite material is driven by the translation drive structure to move in the material changing chamber, and is driven by the material transferring drive structure to transfer between the hot pressing platform and the material transferring platform, which can avoid the risk of scalding when manually taking materials directly in the working chamber. The finished composite material product does not need to wait for the inside of the working chamber to cool down, but can be directly transferred to the material changing chamber and then taken out after cooling down. While waiting for the finished product to cool down, the material can continue to be loaded through the front end material changing chamber, which effectively reduces the intermediate waiting time and improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 For the present invention Figure 1 A partial enlarged view of the middle A; Figure 3 It is a partial cross-sectional view of the internal structure of the equipment box of the present invention; Figure 4 It is a partial cross-sectional view of the internal structure of the autoclave of the present invention; Figure 5 For the present invention Figure 4 A partial enlarged view of point B in the middle; Figure 6 For the present invention Figure 4 A partial enlarged view of point C in the middle; Figure 7 It is a partial schematic diagram of the front of the internal structure of the autoclave of the present invention; Figure 8 For the present invention Figure 7 A partial enlarged view of point D in the middle; Fig. 9 It is a partial side schematic diagram of the material transfer platform, screw rod, connecting seat and screw sleeve connecting structure of the present invention.

[0018] Among them, 1. autoclave; 2. bracket; 3. sealing cover; 4. equipment box; 5. first air pipe; 6. second air pipe; 7. electric control valve; 8. air intake silencer; 9. vacuum pump; 10. third air pipe; 11. partition; 12. first cylinder; 13. hot pressing platform; 14. material transfer platform; 15. slide rail; 16. second cylinder; 17. guide sleeve; 18. guide column; 19. cross frame; 20. third cylinder; 21. push-pull plate; 22. closed door; 23. rotating seat; 24. screw; 25. slider; 26. fixed seat; 27. motor; 28. connecting seat; 29. ​​screw sleeve. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example

[0020] like Figures 1 to 9 As shown, an embodiment of the present invention provides a composite material rapid hot pressing molding equipment, including an autoclave 1, a pressurizing and heating device, multiple groups of temperature sensors and multiple pressure sensors, the autoclave 1 is supported by a bracket 2, and the front and rear ends of the autoclave 1 are rotatably connected with sealing covers 3, the inner wall of the autoclave 1 is distributed front and back and fixedly connected with two groups of partitions 11 in sequence, the inside of the autoclave 1 is divided into a working chamber in the middle and a material changing chamber located on the front and rear sides of the working chamber by the two groups of partitions 11, the inner wall of the partition 11 is provided with a window that passes through the front and back, and the inner wall of the window is rotatably connected with two groups of closed doors 22 that open oppositely, the lower inner wall of the working chamber is fixedly connected with a hot pressing platform 13, the lower inner wall of the material changing chamber is slidably connected with a material moving platform 14, and the inner wall of the material changing chamber is provided with a material moving platform 14 for moving the material in the hot pressing chamber. The material transfer driving structure is transferred between the platform 13 and the material transfer platform 14, and the equipment box 4 is fixedly connected to the top of the autoclave 1. The pressurization and heating device, multiple groups of temperature sensors and multiple groups of pressure sensors in this embodiment are consistent with the structure in the prior art. The pressurization and heating device is used to heat and pressurize the working chamber so that the composite material located inside the working chamber is pressurized and heated to be cured and formed. The temperature sensor and the pressure sensor are used to detect the temperature and pressure conditions inside the autoclave 1 respectively. In this embodiment, the two groups of material exchange chambers are located at the rear side of the working chamber. A cooling structure similar to the existing technology on the market is also provided in one group of material exchange chambers. It can be cooling by refrigerant or cooling by fan. Since it is the prior art and is not the key improvement content of this embodiment, it is not explained in detail.

[0021] In order to draw the hot air that enters the material exchange chamber from the working chamber back into the working chamber during feeding and taking out of the materials, a ventilation structure for drawing the air in the material exchange chamber into the working chamber is arranged between the equipment box 4 and the autoclave 1. The ventilation structure includes two groups of air pumps 9. The two groups of air pumps 9 are distributed front and back and are fixedly connected to the upper wall of the autoclave 1 in sequence and are both located inside the equipment box 4. The air inlet ends of the two groups of air pumps 9 are fixedly connected to the first air pipes 5. The ends of the two groups of first air pipes 5 away from the air pumps 9 respectively penetrate the front wall and the rear wall of the equipment box 4 and are divided into The two groups of first air pipes 5 are respectively extended to the front and rear sides of the equipment box 4, and one end of the two groups of first air pipes 5 extending to the outside of the equipment box 4 is respectively connected to the inside of the two groups of refueling chambers. The ends of the two groups of vacuum pumps 9 away from the first air pipes 5 are fixedly connected to the third air pipes 10, and the ends of the two groups of third air pipes 10 away from the vacuum pumps 9 are connected to the inside of the working chamber. After loading or taking out materials, the temperature in the refueling chamber is detected by the temperature sensor. When the temperature is higher than the set value, the hot air in the refueling chamber is sucked back into the working chamber through the vacuum pump 9 to reduce the heat loss of the working chamber; In order to enable the sealing cover 3 to be opened smoothly after the refueling chamber is evacuated to form a negative pressure, an air intake structure for introducing room temperature air into the refueling chamber is provided on the upper wall of the autoclave 1, and the air intake structure includes two groups of second air pipes 6, which are fixedly connected to the upper wall of the autoclave 1 and are respectively close to the front and rear ends of the autoclave 1. The ends of the two groups of second air pipes 6 facing the autoclave 1 are respectively connected to the inside of the two groups of refueling chambers, and the ends of the second air pipes 6 away from the autoclave 1 are fixedly connected to an air intake muffler 8, and a section of the outer wall of the second air pipe 6 between the autoclave 1 and the air intake muffler 8 is fixedly connected to an electric control valve 7. After the air pump 9 completes the air extraction, the second air pipe 6 is opened by the electric control valve 7, and the air outside the autoclave 1 is squeezed into the refueling chamber by the external atmospheric pressure, so as to avoid the problem that the sealing cover 3 cannot be opened due to the negative pressure state inside the refueling chamber. During the air intake process, the air intake muffler 8 is used to reduce the air intake noise, thereby effectively improving the working environment. In order to facilitate loading and taking materials, a first sliding structure is provided on the lower inner wall of the material changing chamber, and the material moving platform 14 is slidably connected to the lower inner wall of the material changing chamber through the first sliding structure. The first sliding structure includes two sets of slide rails 15 and two sets of sliders 25, and the two sets of sliders 25 are distributed left and right and fixedly connected to the lower wall of the material moving platform 14 in sequence. The two sets of slide rails 15 are distributed left and right and fixedly connected to the lower inner wall of the material changing chamber in sequence. The length directions of the two sets of slide rails 15 are parallel to the axial direction of the autoclave 1, and the two sets of sliders 25 are slidably connected to one set of slide rails 15 on the side away from the material moving platform 14. The material moving platform 14 is slidably connected to the lower inner wall of the material changing chamber through the two sets of slide rails 15 and the sliders 25. The material moving platform 14 inside the front end material changing chamber is used to receive the composite material to be processed and transfer it to the working chamber, and the material moving platform 14 inside the rear end material changing chamber is used to receive the finished composite material to be cured and transfer it to the rear end of the autoclave 1. The two sets of sliders 25 and the slide rails 15 can facilitate the forward and backward movement of the material moving platform 14; In order to realize the forward and backward movement of the material moving platform 14, a translation driving structure for driving the material moving platform 14 to translate forward and backward is arranged between the material moving platform 14 and the inner lower wall of the material changing chamber. The translation driving structure includes a motor 27, a screw 24 and a screw sleeve 29. The motor 27 is fixedly connected to the inner lower wall of the material changing chamber through a fixed seat 26 and is located at an end away from the partition 11. The screw 24 is fixedly connected to the end of the motor 27 extending out of the shaft. The end of the screw 24 away from the motor 27 is rotatably connected to the inner lower wall of the material changing chamber through a rotating seat 23. The rotating seat 23 is arranged on the inner lower wall of the material changing chamber and is located near the partition 11, a connection seat 28 is fixedly connected to the lower wall of the material moving platform 14, and a screw sleeve 29 is fixedly connected to the inner wall of the connection seat 28 in a front-to-back through-shape. A section of the screw 24 between the motor 27 and the rotating seat 23 penetrates the inner wall of the screw sleeve 29 and is threadedly connected thereto. When the motor 27 rotates, the screw 24 is driven to rotate. The screw 24 and the screw sleeve 29 are in a threaded connection relationship, and the axial position of the screw 24 is constrained by the motor 27 and the rotating seat 23. Therefore, when the screw 24 rotates, the screw sleeve 29 is driven to move back and forth along the axial direction of the screw 24 on the outer wall of the screw 24, thereby driving the material moving platform 14 to translate forward and backward; In order to realize the action of transferring the composite material on the upper wall of the material moving platform 14 and the upper wall of the hot pressing platform 13, the upper wall of the material moving platform 14 and the upper wall of the hot pressing platform 13 are flush with the lower wall inside the window of the partition 11, and the left and right widths of the material moving platform 14 and the hot pressing platform 13 are smaller than the left and right widths of the window of the partition 11. The inner wall of the material changing chamber is slidably connected with two groups of cross frames 19 through a second sliding structure. The length directions of the two groups of cross frames 19 are parallel to the axial direction of the hot press tank 1 and the horizontal heights of the two groups of cross frames 19 are higher than the material moving platform 14. The material moving drive structure is arranged between the cross frame 19 and the material changing chamber. The second sliding structure includes four groups of guide sleeves 17. The four groups of guide sleeves 17 are fixedly connected to the inner left wall and the inner right wall of the material changing chamber in pairs of two. The inner walls of the four groups of guide sleeves 17 are A guide column 18 is slidably connected, and two groups of cross frames 19 are respectively fixedly connected to one end of the four groups of guide columns 18 facing the axis of the autoclave 1. The cross frame 19 is slidably connected to the inner wall of the material exchange chamber through the guide sleeve 17 and the guide column 18. The material transfer driving structure includes two groups of second cylinders 16, a third cylinder 20 and two groups of push-pull plates 21. The two groups of second cylinders 16 are respectively fixedly connected to the inner left wall and the inner right wall of the material exchange chamber. The ends of the extended shafts of the two groups of second cylinders 16 are respectively fixedly connected to the opposite sides of the two groups of cross frames 19. The two groups of third cylinders 20 are respectively fixedly connected to the upper walls of the two groups of cross frames 19 and the extended shafts of the two groups of third cylinders 20 are both arranged at one end facing the partition 11. The two groups of push-pull plates 21 are respectively fixedly connected to the ends of the extended shafts of the two groups of third cylinders 20. When working, The interior of the chamber is pre-pressurized and heated, the sealing cover 3 at the front end is opened, and the composite material to be processed is placed on the upper wall of the material transfer platform 14 inside the front material exchange chamber. After closing the sealing cover 3, the closed door 22 between the front material exchange chamber and the working chamber is opened, and the material transfer platform 14 is driven by the motor 27 to move to the partition 11, and the two groups of second cylinders 16 extend their shafts to drive the cross frame 19 to move in front of the composite material, and then the third cylinder 20 extends its shaft to push the composite material through the push-pull plate 21, and pushes it from the material transfer platform 14 to the hot pressing platform 13. After it is pushed into place, the third cylinder 20 is reset, the second cylinder 16 is reset, and the closed door 22 is closed, and the vacuum pump 9 draws the air in the front material exchange chamber back to the working chamber, and through the pressure sensor and temperature sensor in the working chamber The sensor detects the pressure and temperature. When the pressure and temperature need to be supplemented, they are adjusted through the pressurized heating device. After the composite material is cured by pressure and heat, the material transfer platform 14 in the rear-end material exchange chamber is driven by the motor 27 to move forward until it is close to the partition 11, and the closed door 22 between the rear-end material exchange chamber and the working chamber is opened. Then, the third cylinder 20 in the rear-end material exchange chamber extends the shaft to drive the push-pull plate 21 to move to the front side of the finished composite material product, and then the second cylinder 16 in the rear-end material exchange chamber extends the shaft to drive the two groups of push-pull plates 21 to approach the composite material. After the push-pull plate 21 moves to the front wall of the composite material, the shaft is retracted by the third cylinder 20, driving the finished composite material from the hot pressing platform 13 to the upper wall of the material transfer platform 14 in the rear-end material exchange chamber.Then the second cylinder 16 is reset, the closed door 22 is closed, and the finished composite material is cooled in the rear-end material exchange chamber. After cooling, it is driven by the material transfer platform 14 to move to the rear end of the autoclave 1 and is taken away by opening the sealing cover 3 at the rear end of the autoclave 1. During the cooling process of the finished composite material in the rear-end material exchange chamber, the front-end material exchange chamber can continue to feed materials, thereby realizing continuous production, reducing the equipment waiting time during cooling, and improving production efficiency; In order to drive the closed door 22 to open and close, an opening and closing driving structure for driving the closed door 22 to close and open is arranged between the closed door 22 and the inner wall of the material exchange chamber, and the opening and closing driving structure includes two groups of first cylinders 12, and the two groups of first cylinders 12 are rotatably connected to the inner left wall and the inner right wall of the material exchange chamber respectively, and the extending shafts of the two groups of first cylinders 12 are rotatably connected to the two groups of closed doors 22 on the partition 11 respectively, and the closed door 22 is driven to close and open by extending and retracting the extending shafts of the first cylinders 12.

[0022] Working principle: In this embodiment, the pressurized heating device, multiple groups of temperature sensors and multiple groups of pressure sensors are consistent with the structure in the prior art. The pressurized heating device is used to heat and pressurize the working chamber so that the composite material located inside the working chamber is pressurized and heated to be cured and formed. The temperature sensor and the pressure sensor are used to detect the temperature and pressure conditions inside the autoclave 1 respectively. In this embodiment, the two groups of material exchange chambers are located at the rear side of the working chamber. A group of material exchange chambers is also provided with a cooling structure similar to the existing technology on the market. It can be cooling by refrigerant or cooling by fan. Since it is the prior art and not the key improvement content of this embodiment, it is not explained in detail. After loading or taking out materials, the temperature in the material exchange chamber is detected by the temperature sensor. When the temperature is higher than the set value, the hot air in the material exchange chamber is pumped back to the working chamber by the vacuum pump 9 to reduce the heat loss of the working chamber. After the vacuum pump 9 completes the vacuuming, the electric control valve 7 is opened. The second air pipe 6 is opened, and the air outside the autoclave 1 is squeezed into the material exchange chamber by the external atmospheric pressure, so as to avoid the problem that the sealing cover 3 cannot be opened due to the negative pressure state inside the material exchange chamber. During the air intake process, the air intake silencer 8 is used to reduce the air intake noise, and the working environment is effectively improved; the material transfer platform 14 inside the front end material exchange chamber is used to receive the composite material to be processed and transfer it to the working chamber, and the material transfer platform 14 inside the rear end material exchange chamber is used to receive the finished composite material after curing and transfer it to the rear end of the autoclave 1. The two sets of sliders 25 and the slide rails 15 can facilitate the forward and backward movement of the material transfer platform 14; when the motor 27 rotates, it drives the screw 24 to rotate, and the screw 24 and the screw sleeve 29 are in a threaded connection relationship, and the axial position of the screw 24 is constrained by the motor 27 and the rotating seat 23, so when the screw 24 rotates, it drives the screw sleeve 29 to move back and forth along the axial direction of the screw 24 on the outer wall of the screw 24, thereby driving the material transfer platform 14 to translate forward and backward;During operation, the interior of the working chamber is pre-pressurized and heated, the sealing cover 3 at the front end is opened, and the composite material to be processed is placed on the upper wall of the material transfer platform 14 inside the front material exchange chamber. After closing the sealing cover 3, the closed door 22 between the front material exchange chamber and the working chamber is opened, and the material transfer platform 14 is driven by the motor 27 to move horizontally to the partition 11, and the two groups of second cylinders 16 extend their shafts to drive the cross frame 19 to move in front of the composite material, and then the third cylinder 20 extends its shaft to push the composite material from the material transfer platform 14 to the hot pressing platform 13 through the push-pull plate 21. After being pushed into place, the third cylinder 20 is reset, the second cylinder 16 is reset, and the closed door 22 is closed. The vacuum pump 9 draws the air in the front material exchange chamber back to the working chamber, and detects the pressure and temperature through the pressure sensor and temperature sensor in the working chamber. When the pressure and temperature need to be supplemented, they are adjusted through the pressurized heating device. After the composite material is pressurized and heated to be cured and formed, the material transfer platform 14 in the rear material exchange chamber is driven by the motor 27 to move forward until it is close to the partition 1 1. The closed door 22 between the rear-end material exchange chamber and the working chamber is opened, and then the shaft of the third cylinder 20 in the rear-end material exchange chamber is extended to drive the push-pull plate 21 to move to the front side of the composite material product, and then the shaft of the second cylinder 16 in the rear-end material exchange chamber is extended to drive the two sets of push-pull plates 21 to approach the composite material. After the push-pull plate 21 moves to the front wall of the composite material, the shaft of the third cylinder 20 is retracted to drive the composite material product from the hot pressing platform 13 to the upper wall of the material transfer platform 14 in the rear-end material exchange chamber, and then the second cylinder 16 is reset, and the closed door 22 is closed. The composite material product is cooled in the rear-end material exchange chamber. After cooling, it is driven by the material transfer platform 14 to move to the rear end of the hot autoclave 1 and is taken away by opening the sealing cover 3 at the rear end of the hot autoclave 1. During the cooling process of the composite material product in the rear-end material exchange chamber, the front-end material exchange chamber can continue to feed materials, realizing continuous production, reducing the equipment waiting time during cooling, and improving production efficiency; the closed door 22 is driven to close and open by the extension and retraction of the shaft of the first cylinder 12. ;

[0023] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A composite material rapid hot pressing molding equipment, characterized in that: The invention comprises a hot autoclave (1), a pressurizing and heating device, a plurality of temperature sensors and a plurality of pressure sensors, wherein the hot autoclave (1) is supported by a bracket (2), the front and rear ends of the hot autoclave (1) are rotatably connected to sealing covers (3), the inner side wall of the hot autoclave (1) is arranged in a front-to-back manner and is fixedly connected to two groups of partitions (11) in sequence, the inside of the hot autoclave (1) is divided into a working chamber located in the middle and a material exchange chamber located on the front and rear sides of the working chamber by the two groups of partitions (11), the inner side wall of the partition (11) is provided with a window that is through-through in the front and rear, and the inner side wall of the window is rotatably connected to two groups of sealing chambers that are separated in opposite directions. The working chamber has a lower inner wall fixedly connected to a hot pressing platform (13), the lower inner wall of the refueling chamber is slidably connected to a material transfer platform (14), the inner wall of the refueling chamber is provided with a material transfer drive structure for transferring materials between the hot pressing platform (13) and the material transfer platform (14), the top of the autoclave (1) is fixedly connected to an equipment box (4), a ventilation structure for extracting air in the refueling chamber into the working chamber is provided between the equipment box (4) and the autoclave (1), and an air intake structure for introducing room temperature air into the refueling chamber is provided on the upper wall of the autoclave (1).

2. A composite material rapid hot pressing molding equipment according to claim 1, characterized in that: The lower inner wall of the material exchange chamber is provided with a first sliding structure, the material transfer platform (14) is slidably connected to the lower inner wall of the material exchange chamber via the first sliding structure, a translation driving structure for driving the material transfer platform (14) to translate forward and backward is provided between the material transfer platform (14) and the lower inner wall of the material exchange chamber, the inner wall of the material exchange chamber is slidably connected to two groups of cross frames (19) via a second sliding structure, the length directions of the two groups of cross frames (19) are parallel to the axis of the autoclave (1) and the horizontal heights of the two groups of cross frames (19) are higher than the material transfer platform (14), the material transfer driving structure is provided between the cross frames (19) and the material exchange chamber, and an opening and closing driving structure for driving the closed door (22) to close and open is provided between the closed door (22) and the inner wall of the material exchange chamber.

3. A composite material rapid hot pressing molding equipment according to claim 2, characterized in that: The ventilation structure comprises two groups of air pumps (9), the two groups of air pumps (9) are arranged front and back and are fixedly connected to the upper wall of the autoclave (1) in sequence and are both located inside the equipment box (4), the air inlet ends of the two groups of air pumps (9) are fixedly connected to the first air pipe (5), the ends of the two groups of the first air pipes (5) away from the air pumps (9) respectively penetrate the front wall and the rear wall of the equipment box (4) and extend to the front and rear sides of the equipment box (4), the ends of the two groups of the first air pipes (5) extending outside the equipment box (4) are respectively connected to the inside of the two groups of material exchange chambers, the ends of the two groups of the air pumps (9) away from the first air pipe (5) are fixedly connected to the third air pipe (10), and the ends of the two groups of the third air pipes (10) away from the air pumps (9) are connected to the inside of the working chamber.

4. A composite material rapid hot pressing molding equipment according to claim 3, characterized in that: The air intake structure comprises two groups of second air pipes (6), the two groups of second air pipes (6) are fixedly connected to the upper wall of the autoclave (1) and are respectively close to the front and rear ends of the autoclave (1), the ends of the two groups of second air pipes (6) facing the autoclave (1) are respectively connected to the inside of the two groups of refueling chambers, the ends of the second air pipes (6) away from the autoclave (1) are fixedly connected to the air intake muffler (8), and a section of the outer wall of the second air pipe (6) between the autoclave (1) and the air intake muffler (8) is fixedly connected to an electric control valve (7).

5. A composite material rapid hot pressing molding equipment according to claim 4, characterized in that: The first sliding structure comprises two groups of slide rails (15) and two groups of sliders (25); the two groups of sliders (25) are distributed on the left and right and are fixedly connected to the lower wall of the material transfer platform (14) in sequence; the two groups of slide rails (15) are distributed on the left and right and are fixedly connected to the lower wall of the inner side wall of the material exchange chamber in sequence; the length directions of the two groups of slide rails (15) are parallel to the axis of the autoclave (1); the two groups of sliders (25) are slidably connected to one group of slide rails (15) at the sides away from the material transfer platform (14); and the material transfer platform (14) is slidably connected to the lower wall of the inner side of the material exchange chamber via the two groups of slide rails (15) and the sliders (25).

6. A composite material rapid hot pressing molding equipment according to claim 5, characterized in that: The translation drive structure comprises a motor (27), a screw (24) and a screw sleeve (29); the motor (27) is fixedly connected to the inner lower wall of the material exchange chamber through a fixed seat (26) and is located at an end away from the partition (11); the screw (24) is fixedly connected to the end of the motor (27) extending out of the shaft; the end of the screw (24) away from the motor (27) is rotatably connected to the inner lower wall of the material exchange chamber through a rotating seat (23); the rotating seat (23) is arranged on the inner lower wall of the material exchange chamber and is located at an end close to the partition (11); the lower wall of the material transfer platform (14) is fixedly connected to a connecting seat (28); the screw sleeve (29) is fixedly connected to the inner wall of the connecting seat (28) in a front-to-back penetrating shape; a section of the screw (24) located between the motor (27) and the rotating seat (23) penetrates the inner wall of the screw sleeve (29) and is threadedly connected thereto.

7. A composite material rapid hot pressing molding equipment according to claim 6, characterized in that: The second sliding structure comprises four groups of guide sleeves (17), the four groups of guide sleeves (17) being fixedly connected to the inner left wall and the inner right wall of the material exchange chamber in pairs of two, the inner walls of the four groups of guide sleeves (17) being slidably connected to guide columns (18), the two groups of cross frames (19) being fixedly connected to one end of the four groups of guide columns (18) facing the axis of the autoclave (1), and the cross frame (19) being slidably connected to the inner wall of the material exchange chamber through the guide sleeves (17) and the guide columns (18).

8. The composite material rapid hot pressing molding equipment according to claim 7, characterized in that: The material transfer drive structure comprises two groups of second cylinders (16), a third cylinder (20) and two groups of push-pull plates (21); the two groups of second cylinders (16) are respectively fixedly connected to the inner left wall and the inner right wall of the material exchange chamber; the ends of the extended shafts of the two groups of second cylinders (16) are respectively fixedly connected to the opposite sides of the two groups of cross frames (19); the two groups of third cylinders (20) are respectively fixedly connected to the upper walls of the two groups of cross frames (19) and the extended shafts of the two groups of third cylinders (20) are both arranged at one end facing the partition plate (11); and the two groups of push-pull plates (21) are respectively fixedly connected to the ends of the extended shafts of the two groups of third cylinders (20).

9. The composite material rapid hot pressing molding equipment according to claim 8, characterized in that: The opening and closing driving structure comprises two groups of first cylinders (12), the two groups of first cylinders (12) being rotatably connected to the inner left wall and the inner right wall of the material exchange chamber respectively, the extension shafts of the two groups of first cylinders (12) being rotatably connected to the two groups of closed doors (22) on the partition (11) respectively, and the closed doors (22) being driven to close and open by extending and retracting the extension shafts of the first cylinders (12).

10. A composite material rapid hot pressing molding equipment according to claim 9, characterized in that: The upper wall of the material transfer platform (14) and the upper wall of the hot pressing platform (13) are both flush with the lower wall of the inner side of the window in the partition (11); the widths of the material transfer platform (14) and the hot pressing platform (13) in the left-right direction are both smaller than the width of the window in the partition (11) in the left-right direction.

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