Transverse and vertical switchable tank immersion type aerogel coiled material vacuum forming device and forming method thereof

Abstract

The invention relates to the technical field of aerogel coiled material forming, in particular to a horizontal and vertical switchable tank immersion type aerogel coiled material vacuum forming device and a forming method thereof.The horizontal and vertical switchable tank immersion type aerogel coiled material vacuum forming device comprises a support and further comprises a rotating shaft rotationally installed on the support and an assembling plate fixedly connected with the rotating shaft, and the two ends of the assembling plate are each provided with an assembling ring; a forming cylinder is arranged in the two assembly rings; the state switching mechanism is arranged on the side portion of the support and connected with the rotating shaft, and the state switching mechanism can drive the rotating shaft to rotate so that the forming cylinder can be switched between the horizontal state and the vertical state; in the glue injection process, the forming cylinder is in a vertical state, compared with glue injection in a transverse flat state, the resistance of bubble rising can be remarkably reduced, removal of air in a base material is facilitated, the vertical glue injection mode optimizes the bubble discharge effect, the uniformity of a surface glue layer of the aerogel coiled material prepared from the regenerated base material is ensured, and the service life of the aerogel coiled material is prolonged. And the heat insulation property meets the requirement.

Description

Technical Field

[0001] This invention relates to the field of aerogel roll forming technology, specifically a horizontal and vertical switchable immersion vacuum forming device for aerogel rolls and its forming method. Background Technology

[0002] Aerogel is a lightweight, nanoporous material that has attracted much attention in fields such as building and industrial energy conservation due to its excellent thermal insulation properties. The immersion-type vacuum forming process for aerogel rolls involves placing the entire roll of substrate in a gelation tank, preparing the adhesive solution in a mixing tank and stirring it thoroughly, and then pumping the well-stirred adhesive solution into the gelation tank until the entire roll of substrate is completely submerged. The adhesive solution is then self-circulated within the gelation tank by an injection pump. After meeting the specified circulation time, the material is allowed to stand and age to complete gelation.

[0003] The substrate of aerogel rolls is generally made of fiber materials, which have a wide range of sources, including materials recycled from plastic waste and produced through reprocessing. The substrate uses recycled fiber materials made from old plastics recycling technology, which not only realizes the resource recycling of old plastics and reduces production costs, but also provides an effective way to make high-value use of waste plastics and promotes the extension of the plastic waste recycling industry chain.

[0004] In conventional aerogel roll forming equipment, the substrate is usually in a horizontal position during the forming process. However, when using recycled substrates, the polymer chains refold into lamellar crystals, causing irreversible damage and impurity-induced embrittlement at the molecular level, which weakens the thermal stability of the substrate. Therefore, conventional aerogel forming equipment needs to pay special attention to the uniformity of adhesive impregnation when impregnating the substrate. During production, conventional aerogel forming equipment experiences significant resistance during bubble rise, resulting in poor bubble removal during adhesive injection and insufficient adhesive wetting. This leads to defects in the internal pore structure of the aerogel product, uneven density distribution, surface unevenness, color differences, and other appearance problems. It also reduces thermal insulation performance and mechanical strength, resulting in poor product consistency and a lower yield. These defects not only affect product quality but also severely restrict the performance of the substrate, hindering the industrialization and promotion of the technology and impacting the large-scale development of aerogel rolls. Summary of the Invention

[0005] The purpose of this invention is to provide a vacuum forming device and method for immersion aerogel rolls that can switch between horizontal and vertical orientations, in order to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A vacuum forming device for immersion aerogel rolls with switchable horizontal and vertical orientations, including a support and further comprising:

[0008] Rotary shaft mounted on support and assembly plate fixedly connected to the shaft are provided. An assembly ring is provided at each end of the assembly plate. A forming cylinder is provided in the two assembly rings. An upper cover and a lower cover are detachably provided at each end of the forming cylinder.

[0009] A state switching mechanism is provided on the side of the support and connected to the rotating shaft. The state switching mechanism can drive the rotating shaft to rotate so that the forming cylinder can switch between a horizontal state and a vertical state. When the forming cylinder switches to the horizontal state, the reciprocating drive mechanism connected to the state switching mechanism can drive the forming cylinder to perform a reciprocating swing action.

[0010] A movable plate is slidably fitted into the assembly plate. The movable plate is connected to the glue injection valve on the lower cover through an opening and closing control mechanism. When the molding cylinder is in a vertical state and glue is injected, the movable plate slides along the length of the assembly plate, causing the opening and closing control mechanism to intermittently open the glue injection valve. The exhaust auxiliary mechanism connected to the movable plate moves along the axial direction of the molding cylinder.

[0011] The horizontal and vertical switchable immersion aerogel roll vacuum forming device described above: the exhaust auxiliary mechanism includes a follower ring fixed to the movable plate and concentric with the forming cylinder. Multiple sets of ejection structures are equidistantly arranged along the circumference of the follower ring, and the multiple sets of ejection structures cooperate with the limiting components provided on the forming cylinder.

[0012] The above-described horizontal and vertical switchable immersion aerogel roll vacuum forming device includes: the ejection structure includes a guide arm fixed to the follower ring and a slider slidably disposed in the guide arm; the guide arm is arranged radially along the forming cylinder; a column is provided on the side of the slider facing the forming cylinder; and the end of the column is provided with a ball bearing that abuts against the outer wall of the forming cylinder.

[0013] The slider is provided with a sliding rod on the side away from the column, which is slidably connected to the end of the guide arm. A cylindrical spring is sleeved on the outer periphery of the sliding rod, and the two ends of the cylindrical spring are respectively connected to the inner wall of the guide arm and the slider.

[0014] The above-described horizontal and vertical switchable immersion aerogel roll vacuum forming device: an arc plate is slidably fitted on the assembly ring, and the limiting component includes a plurality of long arms fixed to the arc plate and equidistantly distributed along the circumference. A plurality of protrusions are formed on the long arms along their own length direction, and the protrusions cooperate with rollers rotatably mounted on the side of the slider.

[0015] The protrusion has a connected inclined surface and a flat surface on the side facing the roller, and a first cylinder is rotatably mounted on the mounting plate, with the movable end of the first cylinder hinged to the arc-shaped plate.

[0016] The horizontal and vertical switchable immersion aerogel roll vacuum forming device described above: the opening and closing control mechanism includes a transmission shaft rotatably installed in the assembly plate and slidably connected to the movable plate, and the transmission shaft is connected to the valve stem of the glue injection valve through a bevel gear set;

[0017] The movable plate is provided with a drive column, and the outer wall of the transmission shaft is provided with a plurality of connected grooves adapted to the drive column. The drive column extends into the groove and is slidably connected to the transmission shaft. The groove includes a first groove, a second groove, and a third groove arranged along the axial direction of the transmission shaft and connected to the second groove. The first groove and the second groove have opposite rotation directions.

[0018] The above-described horizontal and vertical switchable immersion aerogel roll vacuum forming device includes a horizontal shaft that is slidably fitted with the rotating shaft and connected to the reciprocating drive mechanism, and a rotating wheel fixed to the horizontal shaft. The horizontal shaft is also connected to a state guide structure.

[0019] The horizontal and vertical switchable immersion aerogel roll vacuum forming device described above: two strip-shaped protrusions are formed on the outer wall of the horizontal shaft, and two strip-shaped grooves are provided on the inner wall of the rotating shaft. The strip-shaped grooves are adapted to the strip-shaped protrusions, and both are parallel to the central axis of the rotating shaft and the horizontal shaft.

[0020] The above-described horizontal and vertical switchable groove-immersion aerogel roll vacuum forming device: the state guidance structure includes a limiting tube fixed on the support, the limiting tube is concentric with the horizontal axis and the horizontal axis is located inside the limiting tube, two limiting posts are fixed on the outer wall of the horizontal axis, and two limiting grooves adapted to the limiting posts are provided on the limiting tube, and the two limiting posts respectively pass through the two limiting grooves;

[0021] The limiting groove includes a first through groove, a second through groove, a third through groove, and a fourth through groove connected in sequence. The first through groove and the third through groove are arranged along the axial direction of the limiting pipe. The second through groove and the fourth through groove are arc-shaped grooves, and the midpoint of the third through groove and the fourth through groove are connected.

[0022] The horizontal and vertical switchable immersion aerogel roll vacuum forming device described above: the reciprocating drive mechanism includes two second cylinders fixedly installed on the side of the support, and each of the two second cylinders has a vertical arm at its movable end, and the end of the vertical arm is provided with a protruding post.

[0023] Two driven arms are also provided on the horizontal axis. The driven arms are provided with strip-shaped through grooves that are adapted to the protrusion. When the limiting post enters the fourth through groove, the protrusion is located in the strip-shaped through groove.

[0024] A vacuum forming method for aerogel rolls, employing a horizontally and vertically switchable dip-immersion aerogel roll vacuum forming device, includes the following steps:

[0025] Step 1: Place the entire roll of substrate into the forming cylinder and vacuum the forming cylinder.

[0026] Step 2, glue injection: The molding cylinder remains vertical, the movable plate rises, and the opening and closing control mechanism intermittently opens the glue injection valve to perform intermittent glue injection. Meanwhile, the exhaust auxiliary mechanism moves along the axial direction of the molding cylinder until the glue injection is completed.

[0027] Step 3: The state switching mechanism drives the rotating shaft to rotate, so that the forming cylinder switches from the vertical state to the tilted, inverted or horizontal state, and the reciprocating drive mechanism drives the forming cylinder to swing back and forth.

[0028] Step 4, aging: Keep the molded cylinder tilted, upside down, or horizontal and allow it to age.

[0029] Compared with the prior art, the beneficial effects of the present invention are:

[0030] This invention features a movable plate that moves within the assembly plate during the glue injection process. This allows the opening and closing control mechanism to intermittently control the glue injection valve, thus achieving intermittent glue injection. This avoids the problem of air trapped in the fiber pores caused by the glue rapidly submerging the substrate during continuous glue injection. The intermittent pauses allow the injected glue sufficient time to penetrate the micropores of the substrate, while simultaneously allowing the desorbed bubbles to undergo the processes of aggregation, growth, and buoyancy. This not only promotes bubble discharge but also reduces the impact force of the glue on the fiber structure, improving the final wetting saturation. Furthermore, during the glue injection process, the molding cylinder is in a vertical position, which significantly reduces the resistance to bubble rise compared to horizontal glue injection, facilitating the removal of air from the substrate. This vertical glue injection method optimizes the bubble discharge effect, preventing aerogel products from having obvious internal pore structure defects, uneven density distribution, and causing surface unevenness, color differences, and other appearance problems. It ensures the uniformity of the surface adhesive layer of aerogel rolls made from recycled substrates, ensuring that their thermal insulation meets requirements.

[0031] Based on keeping the molding cylinder vertical and injecting glue intermittently to improve the bubble removal effect, an air venting auxiliary mechanism is set up. This mechanism can move along the axial direction of the molding cylinder during the glue injection process. By using the rapid rebound of the cylindrical spring, it can knock on the molding cylinder, thereby effectively promoting the removal of bubbles and further optimizing the bubble removal effect and wetting saturation.

[0032] Furthermore, by setting a limiting tube, the limiting tube can effectively limit the horizontal axis through the limiting post. The limiting groove on the limiting tube can effectively restrict the state of the molding cylinder, keeping the molding cylinder vertical during the glue injection process and tilted, upside down, or horizontal during the aging process. The reciprocating drive mechanism can also drive the horizontal axis to rotate back and forth, causing the molding cylinder to perform a reciprocating oscillation. The reciprocating oscillation of the molding cylinder, through the slight reciprocating tilt, forms an axial microflow in the molding cylinder. On the one hand, it can prevent the concentration stratification caused by the sedimentation of nanoparticles in the glue. On the other hand, it can drive the horizontally distributed microbubbles to slowly slide towards the end cap vent hole, eliminating the static dead zone, thereby improving the product homogeneity and yield. Attached Figure Description

[0033] Figure 1 An isometric view of one embodiment of a trough-immersion aerogel roll vacuum forming apparatus that can switch between horizontal and vertical orientations.

[0034] Figure 2 This is a schematic diagram of one embodiment of a groove-immersion aerogel roll vacuum forming device that can switch between horizontal and vertical orientations.

[0035] Figure 3 This is a schematic diagram of another aspect of an embodiment of a trough-immersion aerogel roll vacuum forming device that can switch between horizontal and vertical orientations.

[0036] Figure 4 This is a schematic diagram of another angle of one embodiment of a trough-immersion aerogel roll vacuum forming device that can switch between horizontal and vertical orientations.

[0037] Figure 5 for Figure 2 Enlarged view of the structure at point A in the middle.

[0038] Figure 6 for Figure 3 Enlarged view of the structure at point B.

[0039] Figure 7 This is a schematic diagram of the limiting component in one embodiment of a slot-immersion aerogel roll vacuum forming device that allows for switching between horizontal and vertical orientations.

[0040] Figure 8 for Figure 7 A structural diagram from another angle.

[0041] Figure 9 This is a schematic diagram showing the disassembly of the forming cylinder and assembly plate in one embodiment of a horizontally and vertically switchable immersion aerogel roll vacuum forming device.

[0042] Figure 10 An exploded view of the exhaust auxiliary mechanism in one embodiment of a horizontally and vertically switchable immersion aerogel roll vacuum forming device.

[0043] Figure 11This is a schematic diagram of the state switching mechanism in one embodiment of a trough-immersion aerogel roll vacuum forming device that allows for switching between horizontal and vertical orientations.

[0044] In the diagram: 1. Support; 2. Molding cylinder; 201. Upper cover; 202. Lower cover; 3. Injection valve; 4. Assembly plate; 401. Assembly ring; 5. Rotating shaft; 501. Strip groove; 6. Movable plate; 601. Drive column; 7. Transmission shaft; 701. First slide groove; 702. Second slide groove; 703. Third slide groove; 8. Follower ring; 9. Guide arm; 10. Slider; 1001. Roller; 11. Column; 12. Slide rod; 13. Columnar spring; 14. First 15. Cylinder; 16. Arc plate; 17. Long arm; 18. Inclined surface; 19. Flat surface; 20. Bevel gear set; 11. Horizontal shaft; 12. Strip protrusion; 13. Limiting post; 24. Rotating wheel; 25. Limiting tube; 26. First through groove; 27. Second through groove; 28. Third through groove; 29. ​​Fourth through groove; 20. Driven arm; 21. Strip through groove; 22. Vertical arm; 23. Protruding post; 24. Second cylinder. Detailed Implementation

[0045] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0046] Furthermore, elements in this invention are referred to as being "fixed to" or "set on" another element, which may be directly on the other element or may also include an intervening element. When an element is considered to be "connected" to another element, it may be directly connected to the other element or may also include an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations.

[0047] Please see Figures 1-11 In this embodiment, a horizontally and vertically switchable immersion aerogel roll vacuum forming device includes a support 1, and further includes:

[0048] Rotary shaft 5 is mounted on support 1 and assembly plate 4 is fixedly connected to shaft 5. Assembly plate 4 has an assembly ring 401 at each end. A forming cylinder 2 is provided in the two assembly rings 401. The two ends of the forming cylinder 2 are respectively provided with an upper cover 201 and a lower cover 202.

[0049] A state switching mechanism is provided on the side of the support 1 and connected to the rotating shaft 5. The state switching mechanism can drive the rotating shaft 5 to rotate so that the forming cylinder 2 can switch between a horizontal state and a vertical state. When the forming cylinder 2 switches to the horizontal state, the reciprocating drive mechanism connected to the state switching mechanism can drive the forming cylinder 2 to perform a reciprocating swing action.

[0050] The movable plate 6 is slidably fitted in the assembly plate 4. The movable plate 6 is connected to the glue injection valve 3 provided on the lower cover 202 through the opening and closing control mechanism. When the molding cylinder 2 is in a vertical state and glue is injected, the movable plate 6 slides along the length direction of the assembly plate 4, causing the opening and closing control mechanism to intermittently conduct the glue injection valve 3. The exhaust auxiliary mechanism connected to the movable plate 6 moves along the axial direction of the molding cylinder 2.

[0051] In this embodiment, it should be noted that an air extraction port (not labeled in the figure) is also provided on the upper cover 201, which is used to perform vacuum treatment on the molding cylinder 2 before the glue injection begins, thereby facilitating the full wetting of the substrate by the glue.

[0052] Secondly, both the upper cover 201 and the lower cover 202 are provided with circulation ports (not labeled in the figure). After the glue is injected, the glue in the molding cylinder 2 is circulated through the circulation ports and the glue injection pump. It should be noted that in actual production, in order to adapt to the horizontal and vertical states of the molding cylinder 2, each pipeline adopts a flexible connection.

[0053] Furthermore, during production, the entire roll of substrate is placed in the forming cylinder 2. During glue injection, the forming cylinder 2 is in a vertical position, and the movable plate 6 rises vertically in the assembly plate 4 (the vertical rise of the movable plate 6 is driven by a lead screw and a servo motor, that is, a lead screw threadedly connected to the movable plate 6 is rotatably installed in the assembly plate 4). During this process, the opening and closing control mechanism controls the glue injection valve 3 to be intermittently opened to achieve intermittent glue injection. At the same time, the exhaust auxiliary mechanism moves along the axial direction of the forming cylinder 2 to promote the discharge of air bubbles.

[0054] After the glue injection is completed, in order to prevent the bottom of the substrate from being squeezed and deformed due to gravity, the state switching mechanism switches the vertical state of the molding cylinder 2 to the horizontal state, and enters the aging process.

[0055] To address this, the present invention incorporates the movable plate 6. During the glue injection process, the movable plate 6 moves within the assembly plate 4, causing the opening and closing control mechanism to intermittently control the glue injection valve 3, thereby achieving intermittent glue injection. This avoids the problem of air being trapped in the fiber pores due to the rapid flooding of the substrate by the glue during continuous injection. The intermittent pauses allow the injected glue sufficient time to penetrate into the micropores of the substrate, while simultaneously allowing the desorbed bubbles to undergo the processes of aggregation, growth, and buoyancy. This not only promotes bubble discharge but also reduces the damage to the fiber structure caused by the impact of the glue, improving the final wetting saturation. Furthermore, during the glue injection process, the molding cylinder 2 is in a vertical position, which significantly reduces the resistance to bubble rise compared to a horizontal position, facilitating the removal of air from the substrate. This vertical glue injection method optimizes the bubble discharge effect, avoiding significant internal pore structure defects and uneven density distribution in aerogel products, which can lead to surface unevenness, color differences, and other appearance problems. It ensures the uniformity of the surface adhesive layer of the aerogel roll material made from recycled substrate, ensuring that its thermal insulation meets the requirements.

[0056] As a further embodiment of the present invention, please refer again. Figure 5 , Figure 9 as well as Figure 10 The exhaust auxiliary mechanism includes a follower ring 8 fixed to the movable plate 6 and concentric with the forming cylinder 2. Multiple sets of ejection structures are equidistantly arranged along the circumference of the follower ring 8, and these ejection structures cooperate with a limiting component provided on the forming cylinder 2. Each ejection structure includes a guide arm 9 fixed to the follower ring 8 and a slider 10 slidably disposed within the guide arm 9. The guide arm 9 is arranged radially along the forming cylinder 2. A column 11 is provided on the side of the slider 10 facing the forming cylinder 2, and the end of the column 11 is provided with a ball bearing abutting against the outer wall of the forming cylinder 2. A sliding rod 12 is also provided on the side of the slider 10 away from the column 11, slidably connected to the end of the guide arm 9. A cylindrical spring 13 is sleeved on the outer circumference of the sliding rod 12, and the two ends of the cylindrical spring 13 are respectively connected to the inner wall of the guide arm 9 and the slider 10.

[0057] An arc-shaped plate 15 is slidably fitted onto the assembly ring 401. The limiting component includes a plurality of elongated arms 16 fixed to the arc-shaped plate 15 and equidistantly distributed along the circumference. Each elongated arm 16 has a plurality of protrusions along its length, which engage with a roller 1001 rotatably mounted on the side of the slider 10. The side of the protrusion facing the roller 1001 has a connected inclined surface 1601 and a flat surface 1602. A first cylinder 14 is rotatably mounted on the assembly plate 4, and the movable end of the first cylinder 14 is hinged to the arc-shaped plate 15.

[0058] In this embodiment, during the glue injection process, the follower ring 8 rises together with the movable plate 6, and the roller 1001 passes through the multiple protrusions one by one. When the roller 1001 passes through each protrusion, it first contacts the inclined surface 1601, causing the slider 10 to give way, that is, the slider 10 slides away from the follower ring 8 within the guide arm 9. The cylindrical spring 13 is compressed, and the ball at the end of the column 11 separates from the molding cylinder 2. Subsequently, the roller 1001 disengages from the protrusion. Due to the setting of the flat surface 1602, after the roller 1001 disengages from the protrusion, the cylindrical spring 13 rebounds instantly. Thus, the slider 10 quickly resets, and the column 11 can be rapidly ejected along the radial direction of the molding cylinder 2 to strike the molding cylinder 2. This cycle repeats, and during the glue injection process, it can play a knocking role on the molding cylinder 2.

[0059] In response, based on keeping the molding cylinder 2 vertical and performing glue injection in an intermittent manner to improve the bubble removal effect, the venting auxiliary mechanism is set up. It can move along the axial direction of the molding cylinder 2 during the glue injection process. By using the rapid rebound of the column spring 13, it can knock the molding cylinder 2, thereby effectively promoting the removal of bubbles and further optimizing the bubble removal effect and wetting saturation.

[0060] After the glue injection process is completed, that is, when the movable plate 6 and the follower ring 8 rise to the highest point of their stroke, in order to facilitate the reset of the movable plate 6 after production, the first cylinder 14 drives the arc plate 15 to rotate, so that the long arm 16 and the roller 1001 are misaligned. Thus, the movable plate 6 can be reset smoothly, avoiding the problem of the protrusion on the long arm 16 blocking the roller 1001 and causing the movable plate 6 to fail to reset smoothly.

[0061] As a further embodiment of the present invention, please refer again. Figure 5 , Figure 7 as well as Figure 10 The opening and closing control mechanism includes a transmission shaft 7 rotatably mounted in the assembly plate 4 and slidably connected to the movable plate 6. The transmission shaft 7 is connected to the valve stem of the glue injection valve 3 through a bevel gear set 17. A drive column 601 is provided on the movable plate 6. The outer wall of the transmission shaft 7 is provided with a plurality of connected grooves adapted to the drive column 601. The drive column 601 extends into the groove and is slidably connected to the transmission shaft 7. The groove includes a first slide groove 701 and a second slide groove 702 that are spirally arranged and connected, and a third slide groove 703 that is axially arranged along the transmission shaft 7 and connected to the second slide groove 702. The first slide groove 701 and the second slide groove 702 have opposite rotation directions.

[0062] In this embodiment, specifically, the bevel gear set 17 includes a first bevel gear fixed to the transmission shaft 7 and a second bevel gear fixed to the valve stem of the glue injection valve 3. The second bevel gear meshes with the first bevel gear, and the glue injection valve 3 can be a ball valve.

[0063] During the glue injection process, the movable plate 6 slides along the axial direction of the transmission shaft 7. When the drive column 601 slides in the first groove 701, it causes the transmission shaft 7 to rotate in the forward direction. As a result, the transmission shaft 7 opens the glue injection valve 3 through the bevel gear set 17. After maintaining this position for a period of time, glue injection is performed for a period of time. Subsequently, the movable plate 6 continues to slide, and the drive column 601 passes through the second groove 702, causing the transmission shaft 7 to rotate in the reverse direction. The glue injection valve 3 closes. Then, the drive column 601 slides upward along the third groove 703, and the glue injection valve 3 remains closed. This achieves intermittent glue injection, providing sufficient time for the glue to penetrate into the micropores of the substrate. At the same time, it facilitates the process of desorbed bubbles undergoing aggregation, growth, and floating, improving the bubble removal effect.

[0064] As a further embodiment of the present invention, please refer again. Figure 6 , Figure 8 as well as Figure 11 The state switching mechanism includes a horizontal shaft 18 that is slidably fitted with the rotating shaft 5 and connected to the reciprocating drive mechanism, and a rotating wheel 19 fixed to the horizontal shaft 18. The horizontal shaft 18 is also connected to a state guiding structure. Two strip-shaped protrusions 1801 are formed on the outer wall of the horizontal shaft 18, and two strip-shaped grooves 501 are provided on the inner wall of the rotating shaft 5. The strip-shaped grooves 501 are adapted to the strip-shaped protrusions 1801, and both are parallel to the central axis of the rotating shaft 5 and the horizontal shaft 18. The state guidance structure includes a limiting tube 20 fixed to the support 1. The limiting tube 20 is concentric with the horizontal axis 18, and the horizontal axis 18 is located inside the limiting tube 20. Two limiting posts 1802 are fixedly provided on the outer wall of the horizontal axis 18. The limiting tube 20 is provided with two limiting grooves adapted to the limiting posts 1802. The two limiting posts 1802 pass through the two limiting grooves respectively. The limiting grooves include a first through groove 2001, a second through groove 2002, a third through groove 2003, and a fourth through groove 2004 connected in sequence. The first through groove 2001 and the third through groove 2003 are arranged along the axial direction of the limiting tube 20. The second through groove 2002 and the fourth through groove 2004 are arc-shaped grooves, and the midpoints of the third through groove 2003 and the fourth through groove 2004 are connected.

[0065] In this embodiment, with attachment Figure 6Taking the state shown as an example, at this time, the limiting post 1802 is located at the end of the first through groove 2001 away from the second through groove 2002, the molding cylinder 2 is in a vertical state, and after the glue injection is completed, the horizontal shaft 18 is pulled outward by the rotating wheel 19 so that the limiting post 1802 enters the second through groove 2002.

[0066] Then, the horizontal shaft 18 can be driven to rotate until the limiting post 1802 deflects into the third through groove 2003. During this process, the horizontal shaft 18 can drive the rotating shaft 5 to rotate through the strip protrusion 1801 and the strip groove 501, so that the forming cylinder 2 switches from the vertical state to the horizontal state and enters the aging process.

[0067] Subsequently, the horizontal shaft 18 is pulled out, so that the limiting post 1802 enters the fourth through groove 2004. Driven by the reciprocating drive mechanism, the horizontal shaft 18 rotates back and forth, and the limiting post 1802 moves back and forth in the fourth through groove 2004. During the aging process, the molding cylinder 2 swings back and forth within a certain range.

[0068] To address this, the limiting tube 20 is provided. The limiting tube 20 can effectively limit the horizontal axis 18 through the limiting post 1802. The limiting groove on the limiting tube 20 can effectively restrict the state of the molding cylinder 2, keeping the molding cylinder 2 vertical during the glue injection process and horizontal during the aging process. The reciprocating drive mechanism can also drive the horizontal axis 18 to rotate back and forth, causing the molding cylinder 2 to perform a reciprocating oscillation. The reciprocating oscillation of the molding cylinder 2 forms an axial microflow in the molding cylinder 2 through a slight reciprocating tilt. On the one hand, it can prevent the concentration stratification caused by the sedimentation of nanoparticles in the glue. On the other hand, it can drive the horizontally distributed microbubbles to slowly slide towards the end cap vent hole, eliminating the static dead zone, thereby improving the product homogeneity and yield.

[0069] Preferably, in actual production, the molding cylinder 2 only swings for 4 hours before aging, and then the molding cylinder 2 remains horizontal (i.e., the limiting post 1802 is located in the third through groove 2003) and is completely stationary.

[0070] Note that in the example provided in the attached figure, the arc angle of the second through groove 2002 on the circumferential surface of the limiting tube 20 is 90°. Therefore, after the glue is injected, the molding cylinder 2 switches from the vertical state to the horizontal state for aging.

[0071] In practical applications, the arc angle of the second through groove 2002 on the circumferential surface of the limiting tube 20 can also be between 90° and 180°, so that the forming cylinder 2 can switch from a vertical state to an inclined state for aging. This inclined state is an inverted inclined state.

[0072] Of course, the arc angle of the second through groove 2002 on the circumferential surface of the limiting tube 20 can also be designed to be 180°, so that the forming cylinder 2 can switch from a vertical state to a completely inverted vertical state for aging. It should be noted that since there are two sets of limiting grooves and limiting posts 1802, located on both sides of the limiting tube 20, when the arc angle of the second through groove 2002 on the circumferential surface of the limiting tube 20 is designed to be 180°, the limiting grooves and limiting posts 1802 on both sides need to be misaligned in the axial direction of the limiting tube 20.

[0073] Therefore, during the final static aging process, the molding cylinder 2 can maintain an inverted tilted state, a fully inverted state, or a horizontal state; the position and shape of the second channel 2002 and the limiting post 1802 can be adaptively adjusted according to actual production needs.

[0074] As a further embodiment of the present invention, please refer again. Figure 2 , Figure 6 as well as Figure 11 The reciprocating drive mechanism includes two second cylinders 23 fixedly installed on the side of the support 1. Each of the two second cylinders 23 has a vertical arm 22 at its movable end. The end of the vertical arm 22 is provided with a protrusion 2201. The horizontal shaft 18 is also provided with two driven arms 21. The driven arms 21 are provided with a strip-shaped through groove 2101 adapted to the protrusion 2201. When the limiting post 1802 enters the fourth through groove 2004, the protrusion 2201 is located in the strip-shaped through groove 2101.

[0075] In this embodiment, after the glue injection process is completed, the limiting post 1802 enters the third through groove 2003 through the second through groove 2002, and the molding cylinder 2 switches from a vertical state to a horizontal state. At this time, the strip through groove 2101 corresponds to the protrusion 2201. Subsequently, the horizontal shaft 18 is pulled out, so that the limiting post 1802 enters the fourth through groove 2004. Correspondingly, the protrusion 2201 is located in the strip through groove 2101. Furthermore, the two second cylinders 23 reciprocate synchronously but in opposite directions, so that the vertical arm 22 drives the driven arm 21 to drive the horizontal shaft 18 to reciprocate through the protrusion 2201, that is, the molding cylinder 2 can perform a reciprocating swing action.

[0076] The mechanical interlocking system controls the state of the forming cylinder 2, ensuring the reliability of maintaining the state of the forming cylinder 2 during production and avoiding losses caused by power failure.

[0077] It should be emphasized that the oscillation of the molding cylinder 2 is a reciprocating tilt at an extremely low frequency and with a small amplitude, which only produces weak shearing far below the gel destruction threshold. It is essentially microgravity convection rather than mechanical stirring. Therefore, it will not only not interfere with aging, but can also continuously eliminate the concentration gradient and sedimentation trend in the adhesive, suppress the risk of cracking caused by gradient shrinkage, and is more effective than the absolutely static standing method.

[0078] A vacuum forming method for aerogel rolls, employing a horizontally and vertically switchable dip-immersion aerogel roll vacuum forming device, includes the following steps:

[0079] Step 1: Place the entire roll of substrate into the forming cylinder 2 and vacuum the forming cylinder 2.

[0080] Step 2, glue injection: The molding cylinder 2 remains vertical, the movable plate 6 rises, and the opening and closing control mechanism intermittently opens the glue injection valve 3 to perform intermittent glue injection. Meanwhile, the exhaust auxiliary mechanism moves along the axial direction of the molding cylinder 2 until the glue injection is completed.

[0081] Step 3: The state switching mechanism drives the rotating shaft 5 to rotate, so that the forming cylinder 2 switches from the vertical state to the tilted, inverted or horizontal state, and the reciprocating drive mechanism drives the forming cylinder 2 to swing back and forth.

[0082] Step 4: Keep the molding cylinder 2 tilted, upside down, or horizontal and allow it to age.

[0083] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0084] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A horizontal-vertical switchable slot immersion aerogel roll vacuum forming device, comprising a support; characterized in that Further comprising: a rotating shaft rotatably mounted on the support and a mounting plate fixedly connected with the rotating shaft, two ends of the mounting plate are respectively provided with a mounting ring, a forming cylinder is arranged in the two mounting rings, and upper and lower covers are detachably arranged at two ends of the forming cylinder; a state switching mechanism arranged on the side of the support and connected with the rotating shaft, the state switching mechanism can drive the rotating shaft to rotate to switch the forming cylinder between horizontal and vertical states, and when the forming cylinder is switched to the horizontal state, a reciprocating driving mechanism connected with the state switching mechanism can drive the forming cylinder to perform reciprocating swing action; an activity plate slidably embedded in the mounting plate, the activity plate is connected with a glue injection valve arranged on the lower cover through an opening and closing control mechanism, when the forming cylinder is in the vertical state and glue injection is performed, the activity plate slides along the length direction of the mounting plate to drive the opening and closing control mechanism to intermittently guide the glue injection valve, and an exhaust auxiliary mechanism connected with the activity plate moves along the axial direction of the forming cylinder.

2. The horizontally and vertically switchable slot-dip aerogel web vacuum forming device of claim 1, wherein, The exhaust auxiliary mechanism comprises a follower ring fixedly connected with the activity plate and concentric with the forming cylinder, a plurality of ejection structures are equidistantly arranged on the circumference of the follower ring, and the plurality of ejection structures are matched with a limiting assembly arranged on the forming cylinder.

3. The horizontally and vertically switchable slot-dip aerogel web vacuum forming device of claim 2, wherein, The ejection structure comprises a guide arm fixedly connected with the follower ring and a sliding block slidably arranged in the guide arm, the guide arm is arranged along the radial direction of the forming cylinder, a column body is arranged on the side of the sliding block facing the forming cylinder, and a ball is arranged at the end of the column body and abuts against the outer wall of the forming cylinder; wherein the side of the sliding block away from the column body is further provided with a slide rod slidably connected with the end of the guide arm, a cylindrical spring is sleeved on the outer periphery of the slide rod, and the two ends of the cylindrical spring are respectively connected with the inner wall of the guide arm and the sliding block.

4. The horizontally and vertically switchable slot-dip aerogel web vacuum forming device of claim 3, wherein, An arc-shaped plate is slidably embedded on the mounting ring, the limiting assembly comprises a plurality of long strip arms fixedly connected with the arc-shaped plate and equidistantly distributed along the circumference, a plurality of protrusions are formed on the long strip arms along the length direction of the long strip arms, and the protrusions are matched with a roller rotatably mounted on the side of the sliding block; wherein the side of the protrusion facing the roller is provided with a connected inclined surface and a flat surface, a first air cylinder is rotatably mounted on the mounting plate, and the movable end of the first air cylinder is hingedly connected with the arc-shaped plate.

5. The horizontally and vertically switchable slot-dip aerogel web vacuum forming device of claim 1, wherein, The opening and closing control mechanism comprises a transmission shaft rotatably mounted in the mounting plate and slidably connected with the activity plate, and the transmission shaft is connected with the valve rod of the glue injection valve through a bevel gear set; wherein a driving column is arranged on the activity plate, a plurality of grooves connected with the driving column and matched with the driving column are arranged on the outer wall of the transmission shaft, the driving column extends into the groove and is slidably connected with the transmission shaft, the groove comprises a first sliding groove, a second sliding groove and a third sliding groove arranged along the axial direction of the transmission shaft and connected with the second sliding groove, and the rotation directions of the first sliding groove and the second sliding groove are opposite.

6. The horizontally and vertically switchable slot-dip aerogel web vacuum forming device of claim 1, wherein, The state switching mechanism comprises a horizontal shaft slidably fitted with the rotating shaft and connected with the reciprocating driving mechanism, and a rotating wheel fixedly connected with the horizontal shaft, and the horizontal shaft is further connected with a state guiding structure.

7. The horizontally and vertically switchable slot-dip aerogel web vacuum forming device of claim 6, wherein, Two strip-shaped protrusions are formed on the outer wall of the horizontal shaft, and two strip-shaped grooves are arranged on the inner wall of the rotating shaft, which are matched with the strip-shaped protrusions and parallel to the central axis of the rotating shaft and the horizontal shaft.

8. The horizontally and vertically switchable slot-dip aerogel web vacuum forming device of claim 6, wherein, The state guiding structure comprises a limiting pipe fixed on the support, which is concentric with the horizontal shaft, and the horizontal shaft is located inside the limiting pipe, two limiting columns are fixed on the outer wall of the horizontal shaft, and two limiting grooves matched with the limiting columns are arranged on the limiting pipe, and the two limiting columns penetrate through the two limiting grooves respectively. The limiting groove comprises a first through groove, a second through groove, a third through groove and a fourth through groove connected in sequence, the first through groove and the third through groove are arranged along the axial direction of the limiting pipe, the second through groove and the fourth through groove are arc-shaped grooves, and the third through groove and the fourth through groove are communicated at the midpoint.

9. The horizontally and vertically switchable slot-dip aerogel web vacuum forming device of claim 8, wherein, The reciprocating driving mechanism comprises two second air cylinders fixedly installed on the side of the support, and a vertical arm is arranged on the movable end of each second air cylinder, and a protruding column is arranged on the end of the vertical arm. Two driven arms are arranged on the horizontal shaft, and a strip-shaped through groove matched with the protruding column is arranged on the driven arm, and when the limiting column enters the fourth through groove, the protruding column is located in the strip-shaped through groove.

10. An aerogel sheet vacuum forming method, using a transverse-vertical switchable slot-dipping aerogel sheet vacuum forming device according to any one of claims 1-9, characterized in that, The method comprises the following steps: Step one, place the whole roll of base material in the forming cylinder in a horizontal state, and perform vacuum sealing on the forming cylinder; Step two, glue injection, the forming cylinder remains in a vertical state, the movable plate rises, the opening and closing control mechanism intermittently guides the glue injection valve, and the intermittent glue injection is performed, and the exhaust auxiliary mechanism moves along the axial direction of the forming cylinder until the glue injection is completed; Step three, the state switching mechanism drives the rotating shaft to rotate, so that the forming cylinder is switched from a vertical state to an inclined state, an inverted state or a horizontal state, and the reciprocating driving mechanism drives the forming cylinder to reciprocate; Step four, the forming cylinder remains in an inclined state, an inverted state or a horizontal state, and is aged in a stationary state.

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