Carbon fiber composite material forming mold with heat preservation function

Abstract

The invention discloses a carbon fiber composite material forming mold with a heat preservation function, and relates to the technical field of forming molds. Comprising a lower die base, an upper die base is arranged on the outer wall of the top of the lower die base, a connecting plate is fixedly connected to the outer wall of the top of the upper die base, and a wrapping frame is fixedly connected to the inner wall of the upper die base; the outer wall of the communicating device is fixedly connected with the inner wall of the upper die base; the outer wall of the heat preservation device is fixedly connected with the inner wall of the upper die base; the fixing frame provided with the heat preservation device provides support, the hollow ring transmits and stores heat, the adjusting device controls the ventilation groove to be communicated, adjusts heat distribution according to the forming stage and meanwhile controls a heating area in the mold, the adjusting device, the switch device and the linkage device are arranged to be matched, and when the adjusting device acts, a circulation channel is opened in a linkage mode, and convection is enhanced. And after the injection molding is finished, the heat is released, so that the heat preservation is realized, and the heat loss is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of forming moulds, in particular to a carbon fiber composite material forming mould with a heat-insulating function. Background Art

[0002] In the field of carbon fiber composite material molding and processing, the thermal insulation performance of the mold plays an important role in product quality and production efficiency. However, there are many problems in the thermal insulation of the traditional carbon fiber composite material molding mold. On the one hand, the traditional mold often lacks an effective heat collection and conduction mechanism. During the injection molding process, a large amount of heat will dissipate with the injection molding operation. The dissipated heat has not been reasonably utilized, resulting in energy waste. At the same time, due to the uneven heat distribution inside the mold, the temperature difference between different parts during the molding process is large, which easily causes quality defects in the carbon fiber composite material during molding, such as local deformation, incomplete curing and other problems, which will affect the quality and performance of the product. On the other hand, the thermal insulation effect of the traditional mold is not good, and the heat dissipation is fast. After the molding operation is completed, the temperature inside the mold is difficult to maintain at a stable level, and the heat is quickly dissipated to the outside, which affects the subsequent processing operations. In order to maintain the temperature of the mold, it is necessary to continuously replenish heat, which not only increases energy consumption, but also prolongs the production cycle. Frequent heating and cooling of the mold will also have a negative impact on the service life of the mold. Summary of the invention

[0003] 1. Technical issues to be solved

[0004] In view of the shortcomings of the prior art, the present invention provides a carbon fiber composite material molding mold with thermal insulation function. The mold is equipped with multiple parts such as a thermal insulation device, a connecting device, an adjusting device, a switching device, a positioning device and a port protection device, which work together to achieve effective collection, conduction, storage and control of heat. The thermal insulation device can adjust the heat distribution according to the molding stage to control the heating area inside the mold; the connecting device can collect injection heat and effectively conduct it; the adjusting device can reduce the impact of vibration and ensure heat flow; the switching device and the linkage device can achieve thermal insulation and reduce energy consumption; the positioning device enhances heat utilization and stabilizes temperature; the port protection device protects the mold structure and maintains stability. These designs effectively improve the thermal insulation performance of the mold and reduce energy consumption.

[0005] (II) Technical solution

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a carbon fiber composite material forming mold with a heat preservation function, comprising: a lower mold base, the outer wall of the top of the lower mold base is provided with an upper mold base, the outer wall of the top of the upper mold base is fixedly connected with a connecting plate, and the inner wall of the upper mold base is fixedly connected with a wrapping frame; a connecting device, the outer wall of the connecting device is fixedly connected to the inner wall of the upper mold base; a heat preservation device, the outer wall of the heat preservation device is fixedly connected to the inner wall of the upper mold base; the heat preservation device comprises a fixed frame, the outer wall of the fixed frame is fixedly connected with a hollow ring, the outer wall of the hollow ring A movable box is fixedly connected, a ventilation groove is opened in the wall of the movable box, an adjusting device is fixedly connected to the inner wall of the movable box, a linkage device is rotatably connected to the inner wall of the movable box, a switch device is fixedly connected to the outer wall of the fixed frame, a positioning device is fixedly connected to the outer wall of the switch device, and a port protection device is fixedly connected to the outer wall of the switch device. The fixed frame of the heat preservation device is provided to provide support, the hollow ring transmits and stores heat, the adjusting device controls the ventilation groove to be connected, the heat distribution is adjusted according to the molding stage, and the heating area inside the mold is controlled at the same time, which is helpful to improve the molding efficiency of the product;

[0007] The adjusting device comprises a servo motor, the output end of the servo motor is fixedly connected with an adjusting screw, the outer wall of the adjusting screw is threadedly connected with an L-shaped plate, the inner wall of the L-shaped plate is slidably connected with a fixing rod, the outer wall of the fixing rod is sleeved with a compression spring, and the L-shaped plate of the adjusting device is slid on the fixing rod, and the compression spring reduces the virtual position, reduces the vibration effect of the airflow on the L-shaped plate, and controls the opening and closing of the ventilation groove to realize the heat flow in different areas, thereby ensuring the subsequent thermal insulation function.

[0008] Preferably, the outer wall of the bottom of the connecting plate is fixedly connected to the outer wall of the top of the servo motor, the outer wall of the fixed frame is fixedly connected to the inner wall of the upper mold base, the outer wall of the movable box is fixedly connected to the outer wall of the fixed frame, the outer wall of the bottom of the movable box is fixedly connected to the outer wall of the bottom of the fixed rod, the side wall inside the movable box is slidably connected to the outer wall of the L-shaped plate, one end of the compression spring is fixedly connected to the outer wall of the bottom of the movable box, and the other end of the compression spring is fixedly connected to the outer wall of the bottom of the L-shaped plate.

[0009] Preferably, the connecting device includes a connecting box, the outer wall of the bottom of the connecting box is fixedly connected with a heat pipe, the outer wall of the top of the connecting box is fixedly connected with a fixed box, the inner wall of the fixed box is fixedly connected with a wrapping ring, the outer wall of the fixed box is provided with a connecting groove, the outer wall of the bottom of the fixed box is fixedly connected with a fixed plate, the outer wall of the fixed plate is fixedly connected with a mesh plate, the outer wall of the connecting box is fixedly connected to the inner wall of the upper mold base, and the connecting device is provided to collect heat existing during injection molding through the heat pipe, and the mesh plate is used to increase the heat transfer area and efficiency, and cooperate with the heat preservation device to allow heat to be effectively conducted in the mold, thereby reducing product defects caused by uneven temperature and improving molding quality.

[0010] Preferably, the positioning device includes a protective frame, the inner side walls of the protective frame are provided with a reflective coating, the inner part of the protective frame is provided with an air storage tube, the outer wall of the protective frame is fixedly connected to the inner wall of the wrapping ring, and the protective frame of the positioning device is provided with a reflective coating and an air storage tube. The reflective coating reduces heat loss, and the air storage tube stores heat and is fixed to the wrapping ring to enhance heat utilization and ensure temperature stability in the mold.

[0011] Preferably, the switch device comprises a square tube, a connecting hole is opened in the wall of the square tube, a sliding block is slidably connected to the inner wall of the square tube, a blocking device is fixedly connected to the outer wall of the sliding block, a limiting rod is fixedly connected to the inner wall of the sliding block, a fixing sleeve is fixedly connected to the inner wall of the square tube, the inner wall of the fixing sleeve is slidably connected to the outer wall of the limiting rod, and a tension spring is fixedly connected to the end of the limiting rod away from the sliding block. By arranging the switch device to cooperate with the linkage device, when the regulating device is actuated, the gas storage pipe channel is linked to open to enhance convection, and the gas storage is closed when sufficient heat is obtained. The gas storage is released after injection molding is completed, thereby achieving heat preservation, reducing heat loss, and reducing energy consumption.

[0012] Preferably, the blocking device includes a fixed block, the inner wall of the fixed block is fixedly connected to a damping rod, the outer wall of the damping rod is sleeved with a return spring, the outer wall of the damping rod is fixedly connected to a movable column, one end of the return spring is fixedly connected to the outer wall of the movable column, the other end of the return spring is fixedly connected to the inner wall of the fixed block, the outer wall of the movable column is slidably connected to the inner wall of the fixed block, the outer wall of the bottom of the fixed block is fixedly connected to the outer wall of the top of the sliding block, the outer wall of the square tube is fixedly connected to the outer wall of the hollow ring, and the square tube is communicated with the hollow ring.

[0013] Preferably, the port protection device includes a positioning sleeve, the inner side wall of the positioning sleeve is symmetrically fixedly connected with an elastic sheet, the outer wall of the elastic sheet is fixedly connected with a connecting sleeve, the outer side wall of the connecting sleeve is fixedly connected with a corrugated sleeve, the outer wall of the connecting sleeve is fixedly connected to the outer wall of the gas storage pipe, and the outer wall of the positioning sleeve is fixedly connected to the inner side wall of the protection frame. By arranging the elastic sheet and the corrugated sleeve of the port protection device, the moving inertia of the upper mold base is offset, the port of the gas storage pipe is protected, and at the same time, impurities are prevented from entering to affect heat storage and transmission, thereby maintaining the stability of the internal structure of the mold.

[0014] Preferably, the linkage device includes a fixed shaft, the outer wall of the fixed shaft is fixedly connected to a slot plate, the inner wall of the slot plate is slidably connected to a sliding shaft, the outer wall of the sliding shaft is rotatably connected to a rotating ring, the outer wall of the rotating ring is fixedly connected to the rotating ring, the side wall inside the rotating ring is fixedly connected to a rotating rod, the outer wall of the rotating rod is fixedly connected to a pushing ring, the outer wall of the rotating rod is rotatably connected to the inner wall of the movable box, the outer wall of the rotating rod is rotatably connected to the inner wall of the square tube, and the outer wall of the fixed shaft is fixedly connected to the outer wall of the L-shaped plate.

[0015] (III) Beneficial effects

[0016] The present invention provides a carbon fiber composite material forming mold with heat preservation function.

[0017] Beneficial effects:

[0018] (i) The carbon fiber composite material forming mold with heat preservation function provides support by setting a fixed frame of the heat preservation device, the hollow ring transmits and stores heat, the regulating device controls the connection of the ventilation groove, adjusts the heat distribution according to the forming stage, and controls the heating area inside the mold at the same time, which helps to improve the product forming efficiency.

[0019] (ii) The carbon fiber composite material molding mold with thermal insulation function is provided with a connecting device to collect the heat existing during injection molding through a heat conducting pipe, and uses a grid plate to increase the heat transfer area and efficiency. It cooperates with the thermal insulation device to allow heat to be effectively conducted in the mold, thereby reducing product defects caused by uneven temperature and improving molding quality.

[0020] (III) The carbon fiber composite material forming mold with thermal insulation function, by setting an L-shaped plate of an adjustment device to slide on a fixed rod, compressing a spring to reduce the virtual position, reduce the vibration effect of airflow on the L-shaped plate, and control the opening and closing of the ventilation groove to achieve heat flow in different areas, thereby ensuring the subsequent thermal insulation function.

[0021] (iv) The carbon fiber composite material forming mold with heat preservation function is provided with a switch device and a linkage device. When the regulating device is actuated, the gas storage pipe channel is linked to open to enhance convection. When sufficient heat is obtained, the gas storage is closed and stored. The gas storage is released after the injection molding is completed, thereby achieving heat preservation, reducing heat loss, and reducing energy consumption.

[0022] (V) The carbon fiber composite material forming mold with heat preservation function has a reflective coating and an air storage pipe in the protective frame of the positioning device. The reflective coating reduces heat loss, and the air storage pipe stores heat and is fixed to the wrapping ring to enhance heat utilization and ensure temperature stability in the mold.

[0023] (VI) The carbon fiber composite material forming mold with heat preservation function offsets the moving inertia of the upper mold base by arranging the elastic sheet and the corrugated sleeve of the port protection device, protects the port of the gas storage pipe, prevents impurities from entering and affecting heat storage and transmission, and maintains the stability of the internal structure of the mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 It is a schematic diagram of the internal structure of the upper die base of the present invention;

[0026] Figure 3 It is a schematic diagram of the partial decomposition structure of the upper die base of the present invention;

[0027] Figure 4 It is a schematic diagram of the local structure of the connecting box of the present invention;

[0028] Figure 5 It is a schematic diagram of the local structure on the fixing plate of the present invention;

[0029] Figure 6 It is a schematic diagram of the internal structure of the heat preservation device of the present invention;

[0030] Figure 7 It is a schematic diagram of the local structure of the regulating device of the present invention;

[0031] Figure 8 is a schematic diagram of the internal structure of the switch device of the present invention;

[0032] Fig. 9 It is a schematic diagram of the internal structure of the blocking device of the present invention;

[0033] Fig.10 It is a structural schematic diagram of the linkage device of the present invention;

[0034] Fig.11 It is a structural schematic diagram of the port protection device of the present invention.

[0035] In the figure: 1, lower die base; 2, upper die base; 3, connecting plate; 4, connecting device; 5, heat preservation device; 6, wrapping frame; 41, connecting box; 42, heat pipe; 43, fixed box; 44, wrapping ring; 45, connecting groove; 46, fixed plate; 47, grid plate; 51, fixed frame; 52, hollow ring; 53, movable box; 54, positioning device; 55, adjusting device; 56, switch device; 57, ventilation groove; 58, linkage device; 59, port protection device; 541, protection frame; 542, reflective coating; 543, gas storage pipe; 551, servo motor; 552, adjusting screw Rod; 553, L-shaped plate; 554, fixed rod; 555, compression spring; 561, square tube; 562, connecting hole; 563, sliding block; 564, blocking device; 565, limiting rod; 566, fixed sleeve; 567, tension spring; 5641, fixed block; 5642, damping rod; 5643, reset spring; 5644, movable column; 581, fixed shaft; 582, notch plate; 583, sliding shaft; 584, rotating ring; 585, rotating rod; 586, pushing ring; 591, positioning sleeve; 592, elastic sheet; 593, connecting sleeve; 594, corrugated sleeve. DETAILED DESCRIPTION

[0036] 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.

[0037] Example 1: Please refer to Figure 1 - Fig.10The present invention provides a technical solution: a carbon fiber composite material forming mold with a heat preservation function, comprising: a lower mold base 1, an upper mold base 2 is arranged on the outer wall of the top of the lower mold base 1, a connecting plate 3 is fixedly connected to the outer wall of the top of the upper mold base 2, and a wrapping frame 6 is fixedly connected to the inner wall of the upper mold base 2; a connecting device 4, the outer wall of the connecting device 4 is fixedly connected to the inner wall of the upper mold base 2; a heat preservation device 5, the outer wall of the heat preservation device 5 is fixedly connected to the inner wall of the upper mold base 2; the heat preservation device 5 comprises a fixed frame 51, the outer wall of the fixed frame 51 is fixedly connected to a hollow ring 52, the outer wall of the hollow ring 52 is fixedly connected to a movable box 53, a ventilation groove 57 is opened in the wall of the movable box 53, an adjusting device 55 is fixedly connected to the inner wall of the movable box 53, and the inner wall of the movable box 53 is fixedly connected to the adjusting device 55. The wall is rotatably connected with a linkage device 58, the outer wall of the fixed frame 51 is fixedly connected with a switch device 56, the outer wall of the switch device 56 is fixedly connected with a positioning device 54, the outer wall of the switch device 56 is fixedly connected with a port protection device 59, the fixed frame 51 is fixed to the inner wall of the upper mold base 2, and provides a support structure for the heat preservation device 5, the hollow ring 52 is connected to the movable box 53, and plays a role in heat transmission and storage, wherein the ventilation groove 57 of the movable box 53 is connected with the connecting groove 45, and an adjusting device 55 is provided to control whether it is connected, when the adjusting device 55 stops blocking the ventilation groove 57, the inside of the movable box 53 will enter the heat through the ventilation groove 57, and since the movable box 53 is connected with the hollow ring 52, the heat enters the square tube 561 through the hollow ring 52;

[0038] The adjusting device 55 includes a servo motor 551, and the output end of the servo motor 551 is fixedly connected with an adjusting screw 552, the outer wall of the adjusting screw 552 is threadedly connected with an L-shaped plate 553, the inner wall of the L-shaped plate 553 is slidably connected with a fixing rod 554, and the outer wall of the fixing rod 554 is sleeved with a compression spring 555. The adjusting device 55 drives the adjusting screw 552 to rotate through the servo motor 551. Since the adjusting screw 552 is threadedly connected with the L-shaped plate 553, and the L-shaped plate 553 slides on the fixing rod 554, the compression spring 555 provides a certain buffering force, so that the L-shaped plate 553 is always subjected to an upward thrust during the downward movement, thereby reducing the virtual position of the L-shaped plate 553, so that when the airflow flows, the vibration effect on the L-shaped plate 553 is reduced. When the servo motor 551 is started, the adjusting screw 552 drives the L-shaped plate 553 to move up and down, and the L-shaped plate 553 blocks the ventilation groove 57 when it is at the top.

[0039] The outer wall at the bottom of the connecting plate 3 is fixedly connected to the outer wall at the top of the servo motor 551, the outer wall of the fixed frame 51 is fixedly connected to the inner wall of the upper mold base 2, the outer wall of the movable box 53 is fixedly connected to the outer wall of the fixed frame 51, the outer wall at the bottom of the movable box 53 is fixedly connected to the outer wall at the bottom of the fixed rod 554, the side wall inside the movable box 53 is slidably connected to the outer wall of the L-shaped plate 553, one end of the compression spring 555 is fixedly connected to the outer wall at the bottom of the movable box 53, and the other end of the compression spring 555 is fixedly connected to the outer wall at the bottom of the L-shaped plate 553. The connecting device 4 is close to the injection position. At this time, the inside of the connecting device 4 is locally heated, and the heat is gathered in the local area, thereby improving the heating efficiency. Thereafter, the ventilation groove 57 is opened by adjusting the position of the L-shaped plate 553. After the air circulates, the hot air and the cold air contact each other to enhance the convection, so that the heat circulates in the connecting device 4 and the movable box 53, thereby accelerating the heating inside the mold.

[0040] The connecting device 4 includes a connecting box 41, the outer wall of the bottom of the connecting box 41 is fixedly connected with a heat conducting pipe 42, the outer wall of the top of the connecting box 41 is fixedly connected with a fixed box 43, the inner wall of the fixed box 43 is fixedly connected with a wrapping ring 44, the outer wall of the fixed box 43 is provided with a connecting groove 45, the outer wall of the bottom of the fixed box 43 is fixedly connected with a fixing plate 46, the outer wall of the fixing plate 46 is fixedly connected with a mesh plate 47, the outer wall of the connecting box 41 is fixedly connected to the inner wall of the upper mold base 2, the heat conducting pipe 42 at the bottom of the connecting box 41 can introduce part of the heat dissipated during the injection molding process into the connecting box 41, the fixed box 43 at the top of the connecting box 41 exchanges heat with the insulation device 5 through the connecting groove 45, the wrapping ring 44 is fixed to the inner wall of the fixed box 43, and plays a role in protecting and positioning the internal components, the fixing plate 46 and the mesh plate 47 are fixed at the bottom of the fixed box 43, the mesh plate 47 can increase the area and efficiency of heat transfer, and make the heat more evenly distributed in the connecting device 4, and the design of the connecting device 4 enables the heat to be effectively conducted inside the mold.

[0041] The positioning device 54 includes a protective frame 541, the side wall inside the protective frame 541 is provided with a reflective coating 542, the inside of the protective frame 541 is provided with a gas storage tube 543, the outer wall of the protective frame 541 is fixedly connected to the inner wall of the wrapping ring 44, the protective frame 541 of the positioning device 54 is provided with a reflective coating 542 and a gas storage tube 543, the reflective coating 542 can reflect heat and reduce heat loss to the outside, the gas storage tube 543 is used to store heat, and the protective frame 541 is fixedly connected to the inner wall of the wrapping ring 44, which further enhances the utilization of heat.

[0042] The switch device 56 includes a square tube 561, a connecting hole 562 is opened in the wall of the square tube 561, a sliding block 563 is slidably connected to the inner wall of the square tube 561, a blocking device 564 is fixedly connected to the outer wall of the sliding block 563, a limiting rod 565 is fixedly connected to the inner wall of the sliding block 563, a fixing sleeve 566 is fixedly connected to the inner wall of the square tube 561, the inner wall of the fixing sleeve 566 is slidably connected to the outer wall of the limiting rod 565, a tension spring 567 is fixedly connected to one end of the limiting rod 565 away from the sliding block 563, the square tube 561 is connected to the hollow ring 52, the sliding block 563 slides in the square tube 561, the limiting rod 565 slides in the fixing sleeve 566, the tension spring 567 provides a reset force, and when convection needs to be strengthened, the linkage device 58 opens the openings at both ends of the gas storage tube 543, that is, the position of the connecting hole 562. The fixed shaft 581 of the linkage device 58 is fixed on the inner wall of the L-shaped plate 553. The notched plate 582, the sliding shaft 583, the rotating ring 584, the rotating rod 585 and the pushing ring 586 cooperate with each other. When the adjusting device 55 moves downward, the notched plate 582 is driven to move by the fixed shaft 581. Since the rotating position of the rotating rod 585 is fixed, when the sliding shaft 583 slides in the notched plate 582, it will drive the rotating ring 584 to rotate, and then drive the rotating rod 585 to rotate. The synchronously rotating pushing ring 586 will generate a pushing force on the limit rod 565 of the switch device 56, thereby pushing the blocking device 564 away from the position of the connecting hole 562, thereby opening the channel of the gas storage tube 543.

[0043] The blocking device 564 includes a fixed block 5641, the inner wall of the fixed block 5641 is fixedly connected with a damping rod 5642, the outer wall of the damping rod 5642 is sleeved with a return spring 5643, the outer wall of the damping rod 5642 is fixedly connected with a movable column 5644, one end of the return spring 5643 is fixedly connected to the outer wall of the movable column 5644, the other end of the return spring 5643 is fixedly connected to the inner wall of the fixed block 5641, the outer wall of the movable column 5644 is slidably connected to the inner wall of the fixed block 5641, the outer wall of the bottom of the fixed block 5641 is fixedly connected to the outer wall of the top of the sliding block 563, the outer wall of the square tube 561 is fixedly connected to the outer wall of the hollow ring 52, and the square tube 561 is connected to the hollow ring 52, and the sliding block 563 moves in the square tube 561 to open the connection Hole 562 allows heat to flow smoothly. The fixed block 5641 of the blocking device 564 is fixed on the sliding block 563. The damping rod 5642, the return spring 5643 and the movable column 5644 cooperate with each other. When the movable column 5644 is subjected to external force, it retracts into the fixed block 5641 and slides along the axial direction of the damping rod 5642 to compress the return spring 5643, thereby realizing the opening and closing control of the circulation channel. When heat enters the movable box 53, the switch device 56 opens the circulation channel and stores the heat in the gas storage pipe 543. The switch device 56 is closed after the heat stabilizes. After the injection molding is completed, the switch device 56 and the L-shaped plate 553 of the movable adjustment device 55 are opened again to release the gas in the gas storage pipe 543, so that the internal convection occurs again, thereby slowing down the speed of heat loss inside the mold.

[0044] The linkage device 58 includes a fixed shaft 581, the outer wall of the fixed shaft 581 is fixedly connected to a notch plate 582, the inner wall of the notch plate 582 is slidably connected to a sliding shaft 583, the outer wall of the sliding shaft 583 is rotatably connected to a rotating ring 584, the outer wall of the rotating ring 584 is fixedly connected to the rotating ring 584, the side wall inside the rotating ring 584 is fixedly connected to a rotating rod 585, the outer wall of the rotating rod 585 is fixedly connected to a pushing ring 586, the outer wall of the rotating rod 585 is rotatably connected to the inner wall of the movable box 53, the outer wall of the rotating rod 585 is rotatably connected to the inner wall of the square tube 561, and the outer wall of the fixed shaft 581 is fixedly connected to the outer wall of the L-shaped plate 553.

[0045] Example 2: Please refer to Figure 1 - Fig.11The present invention provides a technical solution: on the basis of the first embodiment, the port protection device 59 includes a positioning sleeve 591, the inner side wall of the positioning sleeve 591 is symmetrically fixedly connected with an elastic sheet 592, the outer wall of the elastic sheet 592 is fixedly connected with a connecting sleeve 593, the outer side wall of the connecting sleeve 593 is fixedly connected with a corrugated sleeve 594, the outer wall of the connecting sleeve 593 is fixedly connected to the outer wall of the gas storage pipe 543, the outer wall of the positioning sleeve 591 is fixedly connected to the inner side wall of the protection frame 541, the positioning sleeve 591 of the port protection device 59 is fixed to the inner side wall of the protection frame 541, the elastic sheet 592 and the connecting sleeve 593, and the corrugated sleeve 594 cooperate with each other, so that the port position of the gas storage pipe 543 has pressure resistance, and the elastic sheet 592 and the corrugated sleeve 594 offset the inertial influence brought by the movement of the upper mold base 2, so as to protect the port of the gas storage pipe 543.

[0046] When in use, the carbon fiber composite material molding mold with heat preservation function, the lower mold base 1 and the upper mold base 2 form the basic frame of the mold, the connecting plate 3 on the top of the upper mold base 2 is used to connect external equipment to provide power support for the opening and closing of the mold, and the wrapping frame 6 is fixed to the inner wall of the upper mold base 2 to accommodate the carbon fiber composite material to ensure the stability of the position of the material during the molding process.

[0047] The connecting device 4 is mainly responsible for the conduction and circulation of heat. The heat pipe 42 at the bottom of the connecting box 41 can introduce part of the heat dissipated during the injection molding process into the connecting box 41. The fixed box 43 at the top of the connecting box 41 exchanges heat with the heat preservation device 5 through the connecting groove 45. The wrapping ring 44 is fixed to the inner wall of the fixed box 43 to protect and position the internal components. The fixing plate 46 and the mesh plate 47 are fixed to the bottom of the fixed box 43. The mesh plate 47 can increase the area and efficiency of heat transfer, so that the heat is more evenly distributed in the connecting device 4. The design of the connecting device 4 enables the heat to be effectively conducted inside the mold, which helps to improve the molding quality and reduce product defects caused by uneven temperature.

[0048] The heat preservation device 5 is one of the main parts of the mold with heat preservation function, which is used to maintain the temperature inside the mold stable. The fixed frame 51 is fixed to the inner wall of the upper mold base 2 to provide a support structure for the heat preservation device 5. The hollow ring 52 is connected to the movable box 53 to play a role in heat transmission and storage. The ventilation groove 57 of the movable box 53 is connected to the connecting groove 45, and an adjustment device 55 is used to control whether it is connected. When the adjustment device 55 stops blocking the ventilation groove 57, heat will enter the inside of the movable box 53 through the ventilation groove 57. Since the movable box 53 is connected to the hollow ring 52, the heat enters the square tube 561 through the hollow ring 52;

[0049] The adjusting device 55 controls whether the vent slot 57 is ventilated, wherein the adjusting device 55 drives the adjusting screw 552 to rotate through the servo motor 551. Since the adjusting screw 552 is threadedly connected to the L-shaped plate 553, and the L-shaped plate 553 slides on the fixing rod 554, the compression spring 555 provides a certain buffer force, so that the L-shaped plate 553 is always subjected to an upward thrust during the downward movement, thereby reducing the virtual position of the L-shaped plate 553, so that when the airflow flows, the vibration effect on the L-shaped plate 553 is reduced. When the servo motor 551 is started, the adjusting screw 552 drives the L-shaped plate 553 to move up and down. When the L-shaped plate 553 is at the top, the ventilation groove 57 is blocked. Since the connecting device 4 is close to the injection position, the inside of the connecting device 4 is locally heated at this time, and the heat is gathered in the local area, thereby improving the heating efficiency. After that, the ventilation groove 57 is opened by adjusting the position of the L-shaped plate 553. After the air circulates, the hot air and the cold air contact each other, thereby strengthening the convection, so that the heat circulates in the connecting device 4 and the movable box 53, thereby accelerating the heating inside the mold. This adjustable heating method can control the heating speed and heat distribution according to the different stages of composite material molding, thereby improving molding efficiency and product quality.

[0050] The switch device 56 controls the circulation and storage of heat. The square tube 561 is connected to the hollow ring 52. The sliding block 563 slides in the square tube 561. The limit rod 565 slides in the fixed sleeve 566. The tension spring 567 provides a reset force. When it is necessary to strengthen convection, the openings at both ends of the gas storage tube 543, that is, the connection hole 562, are opened through the linkage device 58. The fixed shaft 581 of the linkage device 58 is fixed to the inner wall of the L-shaped plate 553. The notched plate 582, the sliding shaft 583, the rotating ring 584, the rotating rod 585 and the pushing ring 586 cooperate with each other. When the adjusting device 55 moves downward, the fixed shaft 581 drives the rotating rod 585 to rotate. The notch plate 582 moves. Since the rotation position of the rotating rod 585 is fixed, when the sliding shaft 583 slides in the notch plate 582, it will drive the rotating ring 584 to rotate, and then drive the rotating rod 585 to rotate. The synchronously rotating pushing ring 586 will generate a pushing force on the limit rod 565 of the switch device 56, and then push the blocking device 564 away from the position of the connecting hole 562, and then open the passage of the gas storage pipe 543. Through the transmission of the linkage device 58, the actions of various components are more coordinated, and the blocking of the ventilation groove 57 can be removed while the blocking of the ventilation pipe is removed, thereby improving the stability of the entire heat preservation device 5;

[0051] The sliding block 563 moves in the square tube 561 to open the connecting hole 562 so that the heat can flow smoothly. The fixed block 5641 of the blocking device 564 is fixed on the sliding block 563. The damping rod 5642, the return spring 5643 and the movable column 5644 cooperate with each other. When the movable column 5644 is subjected to external force, it retracts into the fixed block 5641 and slides along the axial direction of the damping rod 5642 to compress the return spring 5643 to realize the opening and closing control of the circulation channel. When heat enters the movable box 53, the switch device 56 opens the circulation channel and stores the heat in the gas storage pipe 543. After the heat is stabilized, it is closed. After the injection molding is completed, the switch device 56 and the L-shaped plate 553 of the movable adjustment device 55 are opened again to release the gas in the gas storage pipe 543, so that the internal convection is again carried out, thereby delaying the speed of heat loss inside the mold, thereby realizing the heat preservation function, reducing heat loss and reducing energy consumption.

[0052] A reflective coating 542 and an air storage tube 543 are provided inside the protective frame 541 of the positioning device 54. The reflective coating 542 can reflect heat to reduce heat loss. The air storage tube 543 is used to store heat. The protective frame 541 is fixedly connected to the inner wall of the wrapping ring 44, which further enhances the utilization of heat.

[0053] The positioning sleeve 591 of the port protection device 59 is fixed to the inner side wall of the protection frame 541, and the elastic sheet 592, the connecting sleeve 593 and the corrugated sleeve 594 cooperate with each other, so that the port position of the gas storage pipe 543 has pressure resistance. The elastic sheet 592 and the corrugated sleeve 594 offset the inertial effect caused by the movement of the upper mold base 2, and play a protective role on the port of the gas storage pipe 543 to prevent impurities from entering the gas storage pipe 543 and affecting heat storage and transmission. At the same time, it can also protect the internal structure of the mold and maintain its stability.

[0054] The carbon fiber composite material forming mold with thermal insulation function realizes the thermal insulation and forming functions through the close cooperation of various devices. The connecting device 4 and the thermal insulation device 5 work together to control the conduction, circulation and storage of heat, thereby meeting the temperature requirements during the carbon fiber composite material forming process. The adjustable design of the regulating device 55 and the switching device 56 improves the energy utilization efficiency. The positioning device 54 and the port protection device 59 ensure the normal operation of the device. The linkage device 58 enhances the coordination between the components.

[0055] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0056] 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 carbon fiber composite material forming mold with heat preservation function, characterized in that: include: A lower die base (1), the outer wall of the top of the lower die base (1) is provided with an upper die base (2), the outer wall of the top of the upper die base (2) is fixedly connected to a connecting plate (3), and the inner wall of the upper die base (2) is fixedly connected to a wrapping frame (6); A connecting device (4), the outer wall of the connecting device (4) being fixedly connected to the inner wall of the upper die base (2); A heat preservation device (5), wherein the outer wall of the heat preservation device (5) is fixedly connected to the inner wall of the upper mold base (2); The heat preservation device (5) comprises a fixed frame (51), the outer wall of the fixed frame (51) is fixedly connected to a hollow ring (52), the outer wall of the hollow ring (52) is fixedly connected to a movable box (53), a ventilation groove (57) is provided in the wall of the movable box (53), the inner wall of the movable box (53) is fixedly connected to an adjustment device (55), the inner wall of the movable box (53) is rotatably connected to a linkage device (58), the outer wall of the fixed frame (51) is fixedly connected to a switch device (56), the outer wall of the switch device (56) is fixedly connected to a positioning device (54), and the outer wall of the switch device (56) is fixedly connected to a port protection device (59); The adjusting device (55) comprises a servo motor (551), the output end of the servo motor (551) is fixedly connected to an adjusting screw (552), the outer wall of the adjusting screw (552) is threadedly connected to an L-shaped plate (553), the inner wall of the L-shaped plate (553) is slidably connected to a fixing rod (554), and the outer wall of the fixing rod (554) is sleeved with a compression spring (555).

2. The carbon fiber composite material forming mold with heat preservation function according to claim 1, characterized in that: The outer wall at the bottom of the connecting plate (3) is fixedly connected to the outer wall at the top of the servo motor (551); the outer wall of the fixed frame (51) is fixedly connected to the inner wall of the upper mold base (2); the outer wall of the movable box (53) is fixedly connected to the outer wall of the fixed frame (51); the outer wall at the bottom of the movable box (53) is fixedly connected to the outer wall at the bottom of the fixing rod (554); the side wall inside the movable box (53) is slidably connected to the outer wall of the L-shaped plate (553); one end of the compression spring (555) is fixedly connected to the outer wall at the bottom of the movable box (53); and the other end of the compression spring (555) is fixedly connected to the outer wall at the bottom of the L-shaped plate (553).

3. The carbon fiber composite material forming mold with heat preservation function according to claim 1, characterized in that: The connecting device (4) comprises a connecting box (41), the outer wall of the bottom of the connecting box (41) is fixedly connected to a heat conduction pipe (42), the outer wall of the top of the connecting box (41) is fixedly connected to a fixed box (43), the inner wall of the fixed box (43) is fixedly connected to a wrapping ring (44), the outer wall of the fixed box (43) is provided with a connecting groove (45), the outer wall of the bottom of the fixed box (43) is fixedly connected to a fixed plate (46), the outer wall of the fixed plate (46) is fixedly connected to a grid plate (47), and the outer wall of the connecting box (41) is fixedly connected to the inner wall of the upper mold base (2).

4. The carbon fiber composite material forming mold with heat preservation function according to claim 3, characterized in that: The positioning device (54) comprises a protective frame (541), the inner side wall of the protective frame (541) is provided with a reflective coating (542), the inner part of the protective frame (541) is provided with a gas storage pipe (543), and the outer wall of the protective frame (541) is fixedly connected to the inner wall of the wrapping ring (44).

5. The carbon fiber composite material forming mold with heat preservation function according to claim 4, characterized in that: The switch device (56) comprises a square tube (561), a connection hole (562) is opened in the wall of the square tube (561), a sliding block (563) is slidably connected to the inner wall of the square tube (561), a blocking device (564) is fixedly connected to the outer wall of the sliding block (563), a limiting rod (565) is fixedly connected to the inner wall of the sliding block (563), a fixing sleeve (566) is fixedly connected to the inner wall of the square tube (561), the inner wall of the fixing sleeve (566) is slidably connected to the outer wall of the limiting rod (565), and a tension spring (567) is fixedly connected to one end of the limiting rod (565) away from the sliding block (563).

6. The carbon fiber composite material forming mold with heat preservation function according to claim 5, characterized in that: The blocking device (564) comprises a fixed block (5641), the inner wall of the fixed block (5641) is fixedly connected to a damping rod (5642), the outer wall of the damping rod (5642) is sleeved with a return spring (5643), and the outer wall of the damping rod (5642) is fixedly connected to a movable column (5644).

7. The carbon fiber composite material forming mold with heat preservation function according to claim 6, characterized in that: One end of the return spring (5643) is fixedly connected to the outer wall of the movable column (5644), and the other end of the return spring (5643) is fixedly connected to the inner wall of the fixed block (5641). The outer wall of the movable column (5644) is slidably connected to the inner wall of the fixed block (5641). The outer wall of the bottom of the fixed block (5641) is fixedly connected to the outer wall of the top of the sliding block (563). The outer wall of the square tube (561) is fixedly connected to the outer wall of the hollow ring (52), and the square tube (561) is communicated with the hollow ring (52).

8. The carbon fiber composite material forming mold with heat preservation function according to claim 4, characterized in that: The port protection device (59) comprises a positioning sleeve (591), the inner side wall of the positioning sleeve (591) is symmetrically fixedly connected with an elastic sheet (592), the outer wall of the elastic sheet (592) is fixedly connected with a connecting sleeve (593), and the outer side wall of the connecting sleeve (593) is fixedly connected with a corrugated sleeve (594).

9. The carbon fiber composite material forming mold with heat preservation function according to claim 8, characterized in that: The outer wall of the connecting sleeve (593) is fixedly connected to the outer wall of the gas storage pipe (543), and the outer wall of the positioning sleeve (591) is fixedly connected to the side wall inside the protection frame (541).

10. The carbon fiber composite material forming mold with heat preservation function according to claim 5, characterized in that: The linkage device (58) comprises a fixed shaft (581), the outer wall of the fixed shaft (581) is fixedly connected with a notch plate (582), the inner wall of the notch plate (582) is slidably connected with a sliding shaft (583), the outer wall of the sliding shaft (583) is rotatably connected with a rotating ring (584), the outer wall of the rotating ring (584) is fixedly connected with the rotating ring (584), the inner side wall of the rotating ring (584) is fixedly connected with a rotating rod (585), the outer wall of the rotating rod (585) is fixedly connected with a pushing ring (586), the outer wall of the rotating rod (585) is rotatably connected to the inner wall of the movable box (53), the outer wall of the rotating rod (585) is rotatably connected to the inner wall of the square tube (561), and the outer wall of the fixed shaft (581) is fixedly connected to the outer wall of the L-shaped plate (553).

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