Laminated forming device for preparing aerogel with high flatness and low tolerance and forming method thereof

Abstract

The device comprises a vertical frame and a feeder arranged on one side of the vertical frame, and further comprises an upper cover and a lower cover which are movably arranged on the vertical frame and can be driven by multiple sets of power mechanisms arranged on the vertical frame to move in the opposite directions, and when the upper cover and the lower cover are in butt joint, the upper cover and the lower cover are in butt joint. A closed cavity for filling a glue solution can be formed; the two cross arms are arranged on the vertical frame, two slices are arranged between the two cross arms, and the two slices can be driven by a plurality of groups of transverse moving mechanisms arranged on the cross arms; by means of the two cutting pieces, a small section is firstly peeled off from one end of the aerogel material, then the two cutting pieces clamp the peeled section of the aerogel material, the integrity of the aerogel material is protected in cooperation with the opening action of the upper cover and the lower cover, the problems of local damage, cracks or deformation and the like of the surface of the aerogel material are effectively solved, the flatness of a product is effectively improved, and the product quality is improved. And the thickness tolerance is reduced to be less than or equal to 5%.

Description

Technical Field

[0001] The present invention relates to the technical field of aerogel production, in particular to a stacking molding device and a molding method for preparing aerogel with high flatness and low tolerance. Background Art

[0002] Aerogel is a promising new material, illuminating numerous fields thanks to its unique physical properties. Its extremely low density, high specific surface area, and excellent thermal insulation properties, along with its excellent elasticity, offer broad application prospects in aerospace, building insulation, energy storage, and other fields. For example, in aerospace, aerogel can be used to create lightweight thermal insulation materials, providing efficient thermal protection for aircraft. In the construction sector, it can significantly improve a building's thermal insulation performance and reduce energy consumption.

[0003] During the aerogel production process, a carefully prepared glue is usually poured into a mold specifically designed for gelation. The design of this mold is crucial, as it ensures that the glue forms an ideal structure during the gelation process. After the glue gradually gels and ages in the mold, the formed cold gel sheet can be removed from the mold. The aging process is usually carried out under specific temperature and humidity conditions to further stabilize the structure inside the gel and enhance its mechanical properties. The removed cold gel sheet must undergo subsequent processing steps such as solvent replacement and supercritical drying to remove the internal solvent and maintain its porous structure, ultimately obtaining an aerogel product with excellent performance.

[0004] During the production process, after the aerogel has aged and formed, it often develops a certain amount of adhesion to the mold. To address this, molds made of special materials are often used, or a release agent is applied to the mold before production. However, neither of these methods can completely eliminate adhesion. Specifically, while the special mold material reduces adhesion to a certain extent, the intermolecular forces between the surface microstructure and the aerogel can still cause localized adhesion. Furthermore, factors such as the release agent's coating thickness, uniformity, and compatibility with the mold and aerogel can also affect its release effectiveness. Therefore, when the aerogel is removed from the mold after aging, it may be subjected to localized pulling forces. This pulling force can cause localized damage, cracks, or deformation on the aerogel surface, resulting in poor product flatness and wide dimensional tolerances, seriously affecting product quality. There is still room for improvement. Summary of the Invention

[0005] The object of the present invention is to provide a laminated molding device and a molding method for preparing aerogel with high flatness and low tolerance, so as to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A stacking molding device for preparing aerogel with high flatness and low tolerance, comprising a stand and a feeder provided on one side of the stand, and further comprising:

[0008] The upper cover and the lower cover are movably mounted on the stand. The upper cover and the lower cover can be driven by multiple power mechanisms mounted on the stand to move toward each other. When the upper cover and the lower cover are docked, a closed chamber for filling with glue is formed. The glue is aged and formed in the closed chamber to improve the flatness of the sheet aerogel and reduce the thickness tolerance to ≤5%.

[0009] Two cross arms are provided on the stand, and two cutters are provided between the two cross arms. The two cutters can be driven by multiple sets of transverse movement mechanisms provided on the cross arms to enter the closed chamber in an inclined state, and cut the aerogel from the upper cover and the lower cover, so that the end of the aerogel away from the feeder forms a peeling section separated from the upper cover and the lower cover;

[0010] The elastic trigger mechanism has two groups connected to each of the two slices. The elastic trigger mechanism is triggered after the stripping segment is formed, which can prompt the two slices to apply clamping force to the aerogel. Then the upper cover and the lower cover swing synchronously and in different directions to increase the length of the stripping segment.

[0011] As a further solution of the present invention: two first strip-shaped protrusions are formed on the bottom of the upper cover, two second strip-shaped protrusions identical to the first strip-shaped protrusions are formed on the upper part of the lower cover, and two baffles are also slidably provided on the upper cover;

[0012] The distance between the two baffles is equal to the length of the first strip protrusion and the second strip protrusion, the baffle can slide vertically relative to the upper cover, a first cylinder is rotatably mounted on the upper cover, and the movable end of the first cylinder is hinged to the baffle.

[0013] As a further solution of the present invention: the transverse movement mechanism includes a slider slidably arranged on the transverse arm and a third cylinder arranged on the transverse arm, and the movable end of the third cylinder is fixed to the slider;

[0014] The slider is connected to a rotating shaft via a telescopic structure, the slice is fixed to the rotating shaft, and the rotating shaft is connected to the elastic trigger mechanism.

[0015] As a further solution of the present invention: a connecting arm is fixed on the slider, and the telescopic structure includes a guide plate arranged at one end of the connecting arm away from the slider and a telescopic plate slidingly fitted with the guide plate, the rotating shaft is rotatably mounted on the telescopic plate, and the side of the telescopic plate is connected to a sliding fitting component.

[0016] As a further solution of the present invention: the sliding fitting assembly includes a limit plate arranged on the side of the cross arm facing the slice, a first driven column is fixed to the side of the telescopic plate, and a groove body adapted to the first driven column is provided on the limit plate. The first driven column extends into the groove body and is slidably connected to the limit plate, and the groove body includes a connected first horizontal section, an inclined section and a second horizontal section.

[0017] As a further solution of the present invention: the elastic trigger mechanism includes two guide posts fixed to the telescopic plate, a driven plate slidably connected to the two guide posts, and two springs respectively sleeved on the outer circumference of the two guide posts. A kit is also slidably sleeved on each of the two guide posts, and the two ends of the spring are respectively connected to the kit and the driven plate, and a transmission structure is provided between the kit and the rotating shaft.

[0018] As a further embodiment of the present invention, the transmission structure includes a ring body slidably mounted on the rotating shaft and fixed to the two sleeves, a protrusion is fixedly provided on the ring body, and a groove adapted to fit the protrusion is provided on the outer wall of the rotating shaft, the protrusion extends into the groove and is slidably connected to the rotating shaft, and the groove is arranged in a spiral shape;

[0019] A second driven column is fixed to the side of the driven plate facing the limiting plate, and a ball is provided at one end of the second driven column away from the driven plate, and the ball abuts against the limiting plate. An oblique block is also provided on the limiting plate. The slice enters and moves between the upper cover and the lower cover. When the ball rolls along the oblique block, the second driven column drives the driven plate to slide toward the telescopic plate, and the compression amount of the spring increases.

[0020] As a further solution of the present invention: two guide grooves are respectively provided on both sides of the stand, and a movable seat is slidably engaged in each guide groove, and the upper cover and the lower cover are rotatably installed between the two opposite movable seats;

[0021] The power mechanism includes a second cylinder rotatably mounted on the cross arm, a movable end of the second cylinder is hinged to the movable seat, and a first motor is also mounted on the side of the movable seat, the first motor is used to drive the upper cover or the lower cover to rotate.

[0022] As a further solution of the present invention, a group of blowing structures are respectively provided on the two horizontal arms, and a through groove is provided on the horizontal arm along its length direction. The blowing structure includes an assembly seat slidably embedded in the through groove, a vertical pipe rotatably mounted on the assembly seat toward the upper cover and the lower cover, and two nozzles connected to the vertical pipe;

[0023] The assembly seat can be driven by a threaded drive assembly provided on the cross arm to move along the length direction of the cross arm, and a second motor with an output end connected to the riser is also installed on the assembly seat;

[0024] The aerogel stacking forming device comprises multiple sets, and the corresponding power mechanisms, transverse movement mechanisms, and elastic triggering mechanisms in the multiple sets of aerogel stacking forming devices operate simultaneously to produce multiple aerogel sheets simultaneously.

[0025] An aerogel forming method, using the above-mentioned forming device, comprises the following steps:

[0026] Step 1: The power mechanism drives the upper cover and the lower cover to move closer together, and the baffle abuts against the lower cover, forming a closed chamber between the upper cover and the lower cover;

[0027] Step 2: inject glue into the closed chamber to fill the sealed chamber;

[0028] Step three: The glue is aged and formed in a closed chamber, and is lifted on the baffle away from the feeder;

[0029] Step 4: The two slices move toward the space between the upper cover and the lower cover, so that the end of the aerogel material away from the feeder forms a peeling section;

[0030] Step 5: The upper cover and the lower cover are opened and closed, and the length of the peeling section is gradually increased until the aerogel material is completely peeled off from the upper cover and the lower cover, thereby obtaining a sheet of aerogel with high flatness and low tolerance, and the thickness tolerance reaches ≤5%;

[0031] Step 6: The feeder transports and transfers the peeled aerogel material.

[0032] Compared with the prior art, the present invention has the following beneficial effects:

[0033] By setting up an upper cover and a lower cover in two layers, stacking the upper cover and the lower cover, and cooperating with the two baffles on the upper cover, a closed chamber for filling the glue can be formed, and the glue is filled into the closed chamber to achieve the stacking molding of the aerogel;

[0034] Secondly, two cutting machines are set up on the side of the closed chamber away from the feeder. When the baffle on this side is raised, the two cutting machines can enter the closed chamber and separate the aerogel material from the upper and lower covers, forming a peeling section on the side of the aerogel material away from the feeder. Then, a small swing of the upper and lower covers is used to gradually peel the aerogel material from the upper and lower covers.

[0035] Therefore, the present invention uses two slices to first peel off a small section at one end of the aerogel material, and then clamps the peeled section of the aerogel material with the two slices, coordinating with the opening action of the upper cover and the lower cover to achieve the separation of the aerogel material from the upper cover and the lower cover. As a result, as the length of the peeled section gradually increases, the separation of the aerogel material from the upper cover and the lower cover proceeds gradually along the length direction of the aerogel material itself, that is, the aerogel material is similar to being peeled obliquely, which distributes the tensile force more evenly, reduces the local stress of the aerogel material, and thus protects the integrity of the aerogel material, effectively improves the problems of local damage, cracks or deformation on the surface of the aerogel material, effectively improves the flatness of the product, reduces the product tolerance, and narrows the thickness tolerance to ≤5%. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 A schematic structural diagram of an embodiment of a stacked molding device for preparing aerogels with high flatness and low tolerance.

[0037] Figure 2 A schematic structural diagram from another angle of an embodiment of a stacked molding device for preparing aerogels with high flatness and low tolerance.

[0038] Figure 3 A structural schematic diagram from another angle of an embodiment of a stacked molding device for preparing aerogels with high flatness and low tolerance.

[0039] Figure 4 A front view of an embodiment of a stacked molding device for preparing aerogels with high flatness and low tolerance.

[0040] Figure 5 A schematic diagram of the connection relationship between the upper cover, the lower cover and the stand in one embodiment of a stacked aerogel molding device for preparing high flatness and low tolerance.

[0041] Figure 6 An exploded diagram of the structure of the power mechanism in one embodiment of a stacked aerogel molding device for preparing high flatness and low tolerance.

[0042] Figure 7 for Figure 6 Schematic diagram of the structure from another angle.

[0043] Figure 8 A schematic diagram of the connection between the transverse movement mechanism and the slice in one embodiment of a stacked molding device for preparing aerogels with high flatness and low tolerance.

[0044] Figure 9 for Figure 8 Schematic diagram of the structure from another angle.

[0045] Figure 10 for Figure 8 A magnified view of the structure at point A in the middle.

[0046] Figure 11 for Figure 9 A magnified view of the structure at point B.

[0047] Figure 12 An exploded diagram of the structure of the elastic trigger mechanism in one embodiment of a stacked aerogel molding device for preparing high flatness and low tolerance.

[0048] Figure 13 for Figure 12 Schematic diagram of the structure from another angle.

[0049] In the figure: 1, stand; 101, guide groove; 2, feeder; 3, cross arm; 4, upper cover; 401, first bar protrusion; 5, lower cover; 501, second bar protrusion; 6, baffle; 7, first cylinder; 8, movable seat; 9, first motor; 10, second cylinder; 11, assembly seat; 12, second motor; 13, riser; 14, nozzle; 15, slider; 1501, connecting arm; 16, third cylinder; 17, limit Positioning plate; 1701, first horizontal section; 1702, inclined section; 1703, second horizontal section; 1704, oblique block; 18, slice; 19, guide plate; 20, telescopic plate; 2001, first driven column; 21, guide column; 22, driven plate; 23, second driven column; 2301, ball bearing; 24, spring; 25, kit; 26, ring body; 2601, boss; 27, rotating shaft; 2701, groove. DETAILED DESCRIPTION

[0050] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0051] In addition, when an element in the present invention is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0052] See also Figures 1-13 In an embodiment of the present invention, a stacking molding device for preparing aerogel with high flatness and low tolerance includes a stand 1 and a feeder 2 provided on one side of the stand 1, and further includes:

[0053] The upper cover 4 and the lower cover 5 are movably mounted on the stand 1. The upper cover 4 and the lower cover 5 can be driven by multiple power mechanisms mounted on the stand 1 to move toward each other. When the upper cover 4 and the lower cover 5 are docked, a closed chamber for filling with glue can be formed.

[0054] Two cross arms 3 are provided on the stand 1, and two cutters 18 are provided between the two cross arms 3. The two cutters 18 can be driven by multiple sets of transverse movement mechanisms provided on the cross arms 3 to enter the closed chamber in an inclined state, and cut the aerogel from the upper cover 4 and the lower cover 5, so that the end of the aerogel away from the feeder 2 forms a peeling section separated from the upper cover 4 and the lower cover 5;

[0055] The elastic trigger mechanism is connected to two groups of slices 18. The elastic trigger mechanism is triggered after the stripping section is formed, which can prompt the two slices 18 to apply clamping force to the aerogel. Then the upper cover 4 and the lower cover 5 swing synchronously and in different directions to increase the length of the stripping section.

[0056] It should be noted that the feeder 2 is an application of the prior art, and its function is to transport the aerogel material after it is formed between the upper cover 4 and the lower cover 5 and peeled off from the upper cover 4 and the lower cover 5 to the next process.

[0057] Secondly, the slice 18 is designed to be thin, and its width is consistent with the width of the aerogel after molding. Specifically, during operation, the two slices 18 act on the upper cover 4 and the lower cover 5 respectively. When entering the closed chamber, the aerogel can be scraped off, so that the end of the aerogel away from the feeder 2 is effectively peeled off to form the peeling section. Therefore, the upper cover 4 and the lower cover 5 are subsequently rotated synchronously but in different directions, that is, when the two perform a small opening action, the length of the peeling section gradually increases until the aerogel is completely peeled off from the upper cover 4 and the lower cover 5.

[0058] Please refer again Figure 6 and Figure 7 , two first strip-shaped protrusions 401 are formed on the bottom of the upper cover 4, two second strip-shaped protrusions 501 identical to the first strip-shaped protrusions 401 are formed on the upper part of the lower cover 5, and two baffles 6 are also slidably provided on the upper cover 4;

[0059] Among them, the distance between the two baffles 6 is equal to the length of the first strip protrusion 401 and the second strip protrusion 501, the baffle 6 can slide vertically relative to the upper cover 4, and the first cylinder 7 is rotatably installed on the upper cover 4, and the movable end of the first cylinder 7 is hinged to the baffle 6.

[0060] Furthermore, during operation, the power mechanism drives the upper cover 4 and the lower cover 5 to move closer to each other, so that the first strip protrusion 401 abuts against the second strip protrusion 501, forming a channel between the upper cover 4 and the lower cover 5, and the two baffles 6 are used to switch the blocking and conducting states at both ends of the channel;

[0061] The upper cover 4 is provided with a plurality of glue injection ports for filling the closed cavity with glue after the closed cavity is formed, so that the glue is evenly distributed in the closed cavity. It should be noted that when producing the first aerogel material, before starting to inject glue, the first cylinder 7 needs to drive the baffle 6 and the upper cover 4 to slide relative to each other until the bottom end of the baffle 6 abuts against the upper part of the lower cover 5. Thus, the closed cavity is effectively formed, the stacking molding of the aerogel is realized, the flatness of the aerogel material is improved, and the thickness tolerance is reduced;

[0062] After the first aerogel material is aged and formed, the two baffles 6 are lifted up, and the aerogel material is peeled off from the upper cover 4 and the lower cover 5 through the cutting process of the two slices 18 and the opening action of the upper cover 4 and the lower cover 5. Then, the end of the aerogel material close to the feeder 2 is connected to the feeder 2, and a small section of the other end of the aerogel material needs to be reserved in the closed chamber. After that, the baffle 6 close to the feeder 2 remains in the raised state, and the subsequent molding of the aerogel material can realize the continuous production of the aerogel material.

[0063] In this embodiment, an upper cover 4 and a lower cover 5 are provided, which are located on the upper and lower layers respectively. After the two are docked, they cooperate with the two baffles 6 on the upper cover 4 to form a closed chamber for filling with glue. At the same time, two cutters 18 are provided on the side of the closed chamber away from the feeder 2. When the baffle 6 on this side is raised, the two cutters 18 can enter the closed chamber and separate the aerogel material from the upper cover 4 and the lower cover 5, so that a peeling section is formed on the side of the aerogel material away from the feeder 2. Then, a small swing of the upper cover 4 and the lower cover 5 is used to gradually peel the aerogel material from the upper cover 4 and the lower cover 5.

[0064] Therefore, the present invention uses two slices 18 to first peel off a small section at one end of the aerogel material, and then clamps the peeled section of the aerogel material through the two slices 18, and cooperates with the opening action of the upper cover 4 and the lower cover 5 to achieve the separation of the aerogel material from the upper cover 4 and the lower cover 5. Therefore, in the process of gradually increasing the length of the peeled section, the separation of the aerogel material from the upper cover 4 and the lower cover 5 is gradual along the length direction of the aerogel material itself, that is, the aerogel material is similar to being peeled obliquely, and the tensile force is more evenly distributed, reducing the local stress of the aerogel material, thereby protecting the integrity of the aerogel material, effectively improving the problems of local damage, cracks or deformation on the surface of the aerogel material, effectively improving the flatness of the product, and reducing the product tolerance.

[0065] The glue is aged and formed in the closed chamber. After aging and forming, the flatness of the aerogel sheet is significantly improved, and the thickness tolerance is ≤5% on the original basis. Specifically, taking the production of 2.0mm aerogel sheet as an example, the thickness and tolerance data before and after optimization are measured, as shown in Table 1 below:

[0066] Table 1 2.0mm aerogel sheet test data

[0067]

[0068]

[0069] Please refer again Figures 9-13 The transverse movement mechanism includes a slider 15 slidably arranged on the cross arm 3 and a third cylinder 16 arranged on the cross arm 3, and the movable end of the third cylinder 16 is fixed to the slider 15; the slider 15 is connected to a rotating shaft 27 through a telescopic structure, the slice 18 is fixed to the rotating shaft 27, and the rotating shaft 27 is connected to the elastic trigger mechanism.

[0070] A connecting arm 1501 is fixed to the slider 15. The telescopic structure includes a guide plate 19 disposed at the end of the connecting arm 1501 away from the slider 15, and a telescopic plate 20 that slides with the guide plate 19. The rotating shaft 27 is rotatably mounted on the telescopic plate 20, and a sliding fitting assembly is connected to the side of the telescopic plate 20. The sliding fitting assembly includes a limit plate 17 disposed on the side of the cross arm 3 facing the slice 18. A first driven post 2001 is fixed to the side of the telescopic plate 20. The limit plate 17 is provided with a slot body that adapts to the first driven post 2001. The first driven post 2001 extends into the slot body and is slidably connected to the limit plate 17. The slot body includes a first horizontal section 1701, an inclined section 1702, and a second horizontal section 1703 that are connected.

[0071] Attach Figure 8 For example, at this time, the two slices 18 are in an inclined state, the inclination directions of the two are opposite, and they are located on the side of the upper cover 4 and the lower cover 5 away from the stand 1;

[0072] When the glue in the closed chamber ages and forms, the baffle 6 away from the feeder 2 is lifted up, and the third cylinder 16 is activated, driving the slider 15 to slide on the cross arm 3 toward the stand 1. Accordingly, the slice 18 moves toward between the upper cover 4 and the lower cover 5. Accordingly, the first driven column 2001 passes through the first horizontal section 1701, the inclined section 1702, and the second horizontal section 1703 in sequence.

[0073] Specifically, after the first driven column 2001 passes through the first horizontal section 1701 , the slice 18 reaches between the upper cover 4 and the lower cover 5 , but the slice 18 does not contact the aerogel material.

[0074] When the first driven post 2001 passes through the inclined section 1702, it will slide with the limiting plate 17. Then, the first driven post 2001 drives the telescopic plate 20 to give way, that is, the telescopic plate 20 and the guide plate 19 slide relative to each other, and the upper slice 18 abuts against the bottom of the upper cover 4, and the lower slice 18 abuts against the upper part of the lower cover 5.

[0075] Subsequently, the first driven column 2001 moves along the second horizontal section 1703, and the end portion held by the slice 18 is able to cut the aerogel material, so that a peeling section is formed at one end of the aerogel material away from the feeder 2, so that when the upper cover 4 and the lower cover 5 perform the subsequent opening action, the aerogel material and the upper cover 4 and the lower cover 5 are gradually peeled off.

[0076] Please refer again Figure 12 and Figure 13 The elastic trigger mechanism includes two guide posts 21 fixed to the telescopic plate 20, a driven plate 22 slidably connected to the two guide posts 21, and two springs 24 respectively sleeved on the outer circumference of the two guide posts 21. A sleeve 25 is also slidably sleeved on each of the two guide posts 21. The two ends of the spring 24 are respectively connected to the sleeve 25 and the driven plate 22. A transmission structure is provided between the sleeve 25 and the rotating shaft 27. The transmission structure includes a ring body 26 slidably sleeved on the rotating shaft 27 and fixed to the two sleeves 25. A protrusion 2601 is fixed on the ring body 26. A groove 2701 adapted to the protrusion 2601 is provided on the outer wall of the rotating shaft 27. The protrusion 2601 extends into the groove 2701 and is slidably connected to the rotating shaft 27, and the groove 2701 is spirally arranged. A second driven post 2601 is fixed on the side of the driven plate 22 facing the limit plate 17. 3. A ball 2301 is provided at one end of the second driven column 23 away from the driven plate 22, and the ball 2301 abuts against the limit plate 17. The limit plate 17 is also provided with an oblique block 1704. The slice 18 enters and moves between the upper cover 4 and the lower cover 5. When the ball 2301 rolls along the oblique block 1704, the second driven column 23 drives the driven plate 22 to slide toward the telescopic plate 20, and the compression amount of the spring 24 increases.

[0077] Attach Figure 10Taking the state shown as an example, at this time, under the elastic support of the spring 24, the slice 18 maintains a certain tilt angle. During the movement of the first driven column 2001 in the second horizontal section 1703, the ball 2301 rolls along the oblique block 1704, so that the second driven column 23 gives way, prompting the driven plate 22 to slide toward the telescopic plate 20 on the two guide columns 21. Accordingly, the compression amount of the spring 24 increases, and the supporting force of the spring 24 on the kit 25 and the ring body 26 increases, and the boss 2601 has a The convex column 2601 has a sliding tendency along the axial direction of the rotating shaft 27 toward the telescopic plate 20. If the convex column 2601 slides along the axial direction of the rotating shaft 27 toward the telescopic plate 20, it can slide with the rotating shaft 27 through the groove 2701, causing the rotating shaft 27 to rotate and the slice 18 to deflect. Therefore, as the compression amount of the spring 24 increases, the two slices 18 can have a tendency to deflect and close together. The two slices apply a certain clamping force to the end of the aerogel material cut off by the slice 18, ensuring that when the upper cover 4 and the lower cover 5 perform the subsequent opening action, the length of the aerogel material peeling section can steadily and gradually increase.

[0078] Please refer again Figure 5-Figure 7 , two guide grooves 101 are respectively provided on both sides of the stand 1, and a movable seat 8 is slidably engaged in each guide groove 101, and the upper cover 4 and the lower cover 5 are rotatably installed between the two opposite movable seats 8; the power mechanism includes a second cylinder 10 rotatably installed on the cross arm 3, and the movable end of the second cylinder 10 is hinged to the movable seat 8. A first motor 9 is also installed on the side of the movable seat 8, and the first motor 9 is used to drive the upper cover 4 or the lower cover 5 to rotate.

[0079] Furthermore, in actual production, when the second cylinder 10 works, it can drive the movable seat 8 to slide in the guide groove 101, thereby enabling the height adjustment of the upper cover 4 and the lower cover 5, so as to facilitate the staff to carry out daily maintenance work on the upper cover 4 and the lower cover 5.

[0080] Please refer again Figure 8 、 Figure 9 as well as Figure 11 A group of blowing structures are respectively provided on the two horizontal arms 3, and a through groove is provided on the horizontal arm 3 along its own length direction. The blowing structure includes an assembly seat 11 slidingly embedded in the through groove, a vertical pipe 13 rotatably installed on the assembly seat 11 toward the side of the upper cover 4 and the lower cover 5, and two nozzles 14 connected to the vertical pipe 13; the assembly seat 11 can be driven by a threaded drive component provided on the horizontal arm 3 and move along the length direction of the horizontal arm 3. A second motor 12 with an output end connected to the vertical pipe 13 is also installed on the assembly seat 11.

[0081] It should be added that, in a specific implementation, the vertical pipe 13 is connected to an external air pump through a sealed rotary joint to output a high-speed airflow, which is blown toward the upper and lower parts of the aerogel material through the two nozzles 14. When the upper cover 4 and the lower cover 5 perform the opening action, the length of the stripping section of the aerogel material gradually increases. The threaded drive assembly drives the assembly seat 11 to drive the nozzle 14 to gradually move closer to the stand 1 along the length direction of the cross arm 3. In this process, the second motor 12 drives the nozzle 14 to swing back and forth through the vertical pipe 13, so that the nozzle 14 blows air toward the end of the aerogel material stripping section away from the slice 18, thereby effectively promoting the separation of the aerogel from the upper cover 4 and the lower cover 5, and improving the smoothness of the aerogel material stripping process.

[0082] Among them, the threaded drive assembly includes a servo motor and a screw, which is rotatably installed on the cross arm 3 and threadedly connected to the assembly seat 11. The high stability and high precision driving characteristics of the screw enable the nozzle 14 to accurately follow the length change of the aerogel stripping section.

[0083] It should be noted that the aerogel stacking molding device for preparing high flatness and low tolerance in the present application is configured as a set, that is, the aerogel stacking molding device comprises multiple sets, and the corresponding power mechanisms, transverse movement mechanisms, and elastic trigger mechanisms in the multiple sets of aerogel stacking molding devices operate simultaneously to produce multiple aerogel sheets simultaneously;

[0084] By operating the power sources in multiple groups of structures simultaneously, multiple aerogel sheets can be produced simultaneously to achieve batch production, and rapid gel formulas can also be used to accelerate production.

[0085] As another embodiment of the present invention, an aerogel forming method is also proposed, using the above-mentioned forming device, comprising the following steps:

[0086] Step 1: The power mechanism drives the upper cover 4 and the lower cover 5 to move closer together, and the baffle 6 abuts against the lower cover 5, forming a closed chamber between the upper cover 4 and the lower cover 5;

[0087] Step 2: inject glue into the closed chamber to fill the sealed chamber;

[0088] Step 3: The glue is aged and formed in a closed chamber, and the baffle 6 away from the feeder 2 is lifted;

[0089] Step 4: The two slices 18 move toward between the upper cover 4 and the lower cover 5, so that the end of the aerogel material away from the feeder 2 forms a peeling section;

[0090] Step 5: The upper cover 4 and the lower cover 5 are opened and closed, and the length of the peeling section gradually increases until the aerogel material is completely peeled off from the upper cover 4 and the lower cover 5. The completely peeled aerogel material has the characteristics of high flatness and low tolerance, with a thickness tolerance of ≤5%;

[0091] Step 6: The feeder 2 transports and transfers the peeled aerogel material.

[0092] 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 embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0093] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A stacking molding device for preparing aerogel with high flatness and low tolerance, comprising a stand and a feeder provided on one side of the stand; It is characterized by: Also includes: The upper cover and the lower cover are movably mounted on the stand. The upper cover and the lower cover can be driven by multiple power mechanisms mounted on the stand to move toward each other. When the upper cover and the lower cover are docked, a closed chamber for filling with glue is formed. The glue is aged and formed in the closed chamber to improve the flatness of the sheet aerogel and reduce the thickness tolerance to ≤5%. Two cross arms are provided on the stand, and two cutters are provided between the two cross arms. The two cutters can be driven by multiple sets of transverse movement mechanisms provided on the cross arms to enter the closed chamber in an inclined state, and cut the aerogel from the upper cover and the lower cover, so that the end of the aerogel away from the feeder forms a peeling section separated from the upper cover and the lower cover; The elastic trigger mechanism has two groups connected to each of the two slices. The elastic trigger mechanism is triggered after the stripping segment is formed, which can prompt the two slices to apply clamping force to the aerogel. Then the upper cover and the lower cover swing synchronously and in different directions to increase the length of the stripping segment.

2. The stacking molding device for preparing aerogel with high flatness and low tolerance according to claim 1, characterized in that: Two first strip-shaped protrusions are formed on the bottom of the upper cover, two second strip-shaped protrusions identical to the first strip-shaped protrusions are formed on the upper part of the lower cover, and two baffles are slidably provided on the upper cover; The distance between the two baffles is equal to the length of the first strip protrusion and the second strip protrusion, the baffle can slide vertically relative to the upper cover, a first cylinder is rotatably mounted on the upper cover, and the movable end of the first cylinder is hinged to the baffle.

3. The stacking molding device for preparing aerogel with high flatness and low tolerance according to claim 1, characterized in that: The transverse movement mechanism includes a slider slidably arranged on the transverse arm and a third cylinder arranged on the transverse arm, wherein the movable end of the third cylinder is fixed to the slider; The slider is connected to a rotating shaft via a telescopic structure, the slice is fixed to the rotating shaft, and the rotating shaft is connected to the elastic trigger mechanism.

4. The stacking molding device for preparing aerogel with high flatness and low tolerance according to claim 3, characterized in that: A connecting arm is fixed on the slider, and the telescopic structure includes a guide plate arranged at one end of the connecting arm away from the slider and a telescopic plate slidingly fitted with the guide plate. The rotating shaft is rotatably mounted on the telescopic plate, and the side of the telescopic plate is connected to a sliding fitting component.

5. The stacking molding device for preparing aerogel with high flatness and low tolerance according to claim 4, characterized in that: The sliding fitting assembly includes a limit plate arranged on the side of the cross arm facing the slice, a first driven column is fixed to the side of the telescopic plate, a groove body adapted to the first driven column is provided on the limit plate, the first driven column extends into the groove body and is slidably connected to the limit plate, and the groove body includes a first horizontal section, an inclined section and a second horizontal section connected to each other.

6. The stacking molding device for preparing aerogel with high flatness and low tolerance according to claim 5, characterized in that: The elastic trigger mechanism includes two guide posts fixed to the telescopic plate, a driven plate slidably connected to the two guide posts, and two springs respectively sleeved on the outer circumference of the two guide posts. A kit is also slidably sleeved on each of the two guide posts. The two ends of the spring are respectively connected to the kit and the driven plate. A transmission structure is provided between the kit and the rotating shaft.

7. The stacking molding device for preparing aerogel with high flatness and low tolerance according to claim 6, characterized in that: The transmission structure includes a ring body that is slidably mounted on the rotating shaft and fixed to the two sleeves, a protrusion is fixedly provided on the ring body, and a groove that is adapted to the protrusion is provided on the outer wall of the rotating shaft. The protrusion extends into the groove and is slidably connected to the rotating shaft, and the groove is arranged in a spiral shape; A second driven column is fixed to the side of the driven plate facing the limiting plate, and a ball is provided at one end of the second driven column away from the driven plate, and the ball abuts against the limiting plate. An oblique block is also provided on the limiting plate. The slice enters and moves between the upper cover and the lower cover. When the ball rolls along the oblique block, the second driven column drives the driven plate to slide toward the telescopic plate, and the compression amount of the spring increases.

8. The stacking molding device for preparing aerogel with high flatness and low tolerance according to claim 1, characterized in that: Two guide grooves are respectively provided on both sides of the stand, and a movable seat is slidably engaged in each guide groove, and the upper cover and the lower cover are rotatably installed between the two opposite movable seats; The power mechanism includes a second cylinder rotatably mounted on the cross arm, a movable end of the second cylinder is hinged to the movable seat, and a first motor is also mounted on the side of the movable seat, the first motor is used to drive the upper cover or the lower cover to rotate.

9. The stacking molding device for preparing aerogel with high flatness and low tolerance according to claim 1, characterized in that: A group of blowing structures are respectively provided on the two horizontal arms, and a through slot is provided on the horizontal arm along its length direction. The blowing structure includes an assembly seat slidably embedded in the through slot, a vertical pipe rotatably mounted on the assembly seat toward the upper cover and the lower cover, and two nozzles connected to the vertical pipe; The assembly seat can be driven by a threaded drive assembly provided on the cross arm to move along the length direction of the cross arm, and a second motor with an output end connected to the riser is also installed on the assembly seat; The aerogel stacking forming device comprises multiple sets, and the corresponding power mechanisms, transverse movement mechanisms, and elastic triggering mechanisms in the multiple sets of aerogel stacking forming devices operate simultaneously to produce multiple aerogel sheets simultaneously.

10. An aerogel forming method, using the forming device according to claim 1, characterized in that: The following steps are involved: Step 1: The power mechanism drives the upper cover and the lower cover to move closer together, and the baffle abuts against the lower cover, forming a closed chamber between the upper cover and the lower cover; Step 2: inject glue into the closed chamber to fill the sealed chamber; Step three: The glue is aged and formed in a closed chamber, and is lifted on the baffle away from the feeder; Step 4: The two slices move toward the space between the upper cover and the lower cover, so that the end of the aerogel material away from the feeder forms a peeling section; Step 5: The upper cover and the lower cover are opened and closed, and the length of the peeling section is gradually increased until the aerogel material is completely peeled off from the upper cover and the lower cover, thereby obtaining a sheet of aerogel with high flatness and low tolerance, and the thickness tolerance reaches ≤5%; Step 6: The feeder transports and transfers the peeled aerogel material.

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