An aerogel film production apparatus and a production method thereof

Abstract

The application relates to the technical field of aerogel film production, in particular to an aerogel film production device and a production method thereof, which comprises a feeding head provided with multiple groups and installed at the bottom of a feeding device; a driving structure, a scraper being rotatably installed on the driving structure, and a trigger being arranged on the driving structure; a guide plate arranged on a bearing plate, the guide plate being provided with a guide groove, a first convex shaft rotatably installed on the driving structure being matched with the guide groove, and the first convex shaft being capable of performing a lifting action once when the scraper moves to the stroke end; a limiting structure connected with the driving structure and the scraper, the limiting structure being capable of making the scraper form a predetermined included angle with the length direction of a hot-pressing film, an abutting shaft connected with the scraper being matched with the trigger, and the abutting shaft being capable of making the scraper perform a deflection action once; and a collecting assembly, the collecting assembly being capable of scraping the aerogel gathered on the scraper to one end close to the rotating center of the scraper when the scraper moves to the side of the hot-pressing film, so that the uniformity and utilization rate of the aerogel film are improved.

Description

Technical Field

[0001] This invention relates to the field of aerogel membrane production technology, specifically to an aerogel membrane production equipment and its production method. Background Technology

[0002] Aerogel is a material with a special three-dimensional spatial network structure. Its pore size is smaller than the mean free path of air molecules, which can effectively block heat conduction, heat convection and heat radiation. It is widely used in petrochemical, new energy vehicle, medical and other fields.

[0003] Chinese patent application publication number CN117944214A discloses an aerogel membrane processing equipment, including a support frame and a membrane supply assembly, feeding device, negative pressure mechanism, first traction device, hot pressing device, cooling device, second traction device and winding device arranged on the support frame, so that the upper and lower hot pressing films are heated and bonded to cover the surface of the aerogel to form an aerogel membrane. The equipment has a simple structure and is easy to operate, which greatly simplifies the continuous production of aerogel membranes.

[0004] In the aforementioned document, the negative pressure mechanism enables the aerogel powder to be densely distributed in a single layer on the lower hot press film. At this time, the control of the discharge amount from the hopper needs to be very strict. Even slight deviations may result in the aerogel powder not being evenly distributed on the hot press film or the presence of excessive aerogel powder on the hot press film, causing uneven thickness of the formed aerogel film. Both of these factors affect the quality of the aerogel film. Summary of the Invention

[0005] The purpose of this invention is to provide an aerogel membrane production equipment and a production method thereof to solve the problems mentioned in the background art.

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

[0007] An aerogel membrane production device, comprising:

[0008] The base has two sets of traction devices symmetrically arranged on it for pulling the hot-pressed film. A hot-pressing device and a cooling device are arranged between the two sets of traction devices, and a feeding device is arranged on one side of the two sets of traction devices.

[0009] The feeding head is provided in multiple sets and installed at the bottom of the feeding device. The feeding head can release aerogel powder onto the hot press film in a dotted manner.

[0010] A drive structure is connected to a support plate disposed on the base. A scraper is rotatably mounted on the drive structure, and a trigger element is disposed on the drive structure.

[0011] A guide plate is provided on the support plate, and a guide groove is provided on the guide plate. A first convex shaft rotatably mounted on the drive structure cooperates with the guide groove, and can perform a lifting action when the scraper moves to the end of its stroke.

[0012] A limiting structure connects the driving structure and the scraper. The limiting structure enables the scraper to form a predetermined angle with the length direction of the hot-pressed film. The abutment shaft connecting the scraper cooperates with the trigger, enabling the scraper to perform a deflection action.

[0013] A collection component, connected to the scraper, is capable of scraping the aerogel accumulated on the scraper to one end near the center of rotation of the scraper when the scraper moves to the side of the hot-press film.

[0014] As a further aspect of the present invention: the driving structure includes a bracket disposed on the support plate, a sliding member is slidably installed in the bracket, and the sliding member is connected to a linear drive module connected to the bracket;

[0015] The sliding member is provided with a guide rod perpendicular to the bearing plate, a sliding connecting block is slidably installed on the guide rod, a support plate that is rotatably connected to the scraper is connected to the sliding connecting block, and the abutment shaft passes through an arc-shaped groove on the support plate.

[0016] As a further embodiment of the present invention: the guide groove includes a first horizontal groove and a second horizontal groove disposed on the guide plate and parallel to each other. The second horizontal groove is provided in two sets, and one end of the second horizontal groove is connected to the end of the first horizontal groove through a vertical groove, and the other end is connected to the middle section of the first horizontal groove through an inclined groove.

[0017] A guide is rotatably mounted at the end of the inclined groove away from the second horizontal groove.

[0018] As a further embodiment of the present invention: the limiting structure includes a straight groove disposed on the support plate and a grooved wheel that is rolled in the straight groove, the grooved wheel being connected to an energy storage kit mounted on the scraper.

[0019] As a further embodiment of the present invention: the energy storage kit includes a fitting groove arranged along the length direction of the scraper, a horizontal shaft is installed in the fitting groove, and a slider that is slidably connected to the horizontal shaft is installed in the fitting groove, and the slider is rotatably connected to the groove wheel;

[0020] A cylindrical spring is also fitted on the horizontal axis. One end of the cylindrical spring is connected to the side wall of the fitting groove, and the other end is connected to the slider.

[0021] As a further embodiment of the present invention: the collecting component includes two sets of collecting plates symmetrically arranged on both sides of the scraper, the two sets of collecting plates being connected by a connector, the connector being able to slide within a hysteresis groove provided along the length direction of the scraper;

[0022] The collection assembly also includes two sets of support rods connected to the feeding device. The support rods cooperate with a second convex shaft connecting the two sets of collection plates, so that when the second convex shaft abuts against the support rod, the collection plate can move along the length direction of the scraper.

[0023] As a further embodiment of the present invention: the support rod includes an inclined plate installed on the feeding device, the two ends of the inclined plate are symmetrically and rotatably mounted with deflecting members, a torsion spring is provided on the rotating shaft of the deflecting member, and the deflecting member and the inclined plate are connected by a stop structure, the stop structure enabling the deflecting member to deflect unidirectionally relative to the inclined plate.

[0024] As a further embodiment of the present invention: the stop structure includes two abutting surfaces symmetrically arranged on the inclined plate and a right-angle abutting part arranged at one end of the deflector near its rotation center.

[0025] A method for producing aerogel membranes using the aforementioned production equipment includes the following steps:

[0026] Step 1: Place one end of the two layers of hot-pressed film into the two sets of traction devices, start the traction devices to pull the two layers of hot-pressed film, and then control the traction devices to stop moving.

[0027] Step 2: Control the feeding device to release the aerogel powder in dots onto the lower hot press film;

[0028] Step 3: Control the drive structure to move the scraper along the width of the hot press film, so that the aerogel powder can be evenly spread on the hot press film. At the same time, excess aerogel powder can move towards the end of the scraper away from its rotation center under the drive of the scraper and collect on the collection component.

[0029] Step 4: When the scraper moves to the end of the hot-press film, the collecting component is activated, allowing the aerogel powder gathered on the collecting component to move toward the end of the scraper closer to its rotation center.

[0030] Step 5: When the scraper moves to the end of its stroke, the guide plate engages with the first cam shaft, causing the scraper and collecting assembly to move away from the lower hot-press film. At the same time, the trigger engages with the abutment shaft, causing the scraper's tilt angle to reverse and the scraper to pass over the excess aerogel powder. Then the scraper moves in the opposite direction to its reset position.

[0031] Step Six: Start the traction device to bond the two layers of hot-press film together. At the same time, the hot-pressing device and the cooling device will press and cool the film together.

[0032] Step 7: Repeat steps 2 through 6 above for continuous production.

[0033] Compared with the prior art, the beneficial effects of the present invention are:

[0034] With the designed drive structure and scraper, the scraper can move an excess of aerogel powder when it makes a reciprocating linear motion. This allows the aerogel powder to generate a composite motion along the length and width of the hot-pressed film, thereby filling the gap between two adjacent aerogel powder release points. This ensures that the aerogel powder is evenly distributed on the hot-pressed film, improving the quality of the aerogel film after hot pressing.

[0035] By using the designed drive structure and guide plate, after the excess aerogel powder is scraped and spread to one side of the hot press film, the scraper position can be switched to the other side of the aerogel powder. When the scraper moves in the opposite direction, it can drive the excess aerogel powder to move in the opposite direction to perform a secondary scraping and spreading operation. On the one hand, the uniformity of aerogel powder on the hot press film can be improved by multiple scraping and spreading. On the other hand, the excess aerogel powder can be reused, reducing the waste of aerogel powder and the cost of subsequent collection and reuse.

[0036] By setting a limiting structure, the scraper can have high stability during the scraping process, preventing uneven distribution of aerogel powder on the hot press film due to scraper shaking. When the scraper deflects, it is separated from the excess aerogel powder, thus avoiding the phenomenon of excess aerogel powder deflecting synchronously with the scraper. When the scraper deflects in the opposite direction and moves in the opposite direction, it can drive the excess aerogel powder to move in the opposite direction, improving the utilization rate of excess aerogel powder.

[0037] By setting up a collection component, when the scraper moves to the side of the hot press film, the collection plate can perform a reciprocating motion along the length of the scraper to push the excess aerogel powder to the rotating end of the scraper. When the scraper moves in the opposite direction, the excess aerogel powder can move again along the length of the scraper, thus achieving better secondary utilization of the excess aerogel powder. Attached Figure Description

[0038] Figure 1 This is a schematic diagram of one embodiment of an aerogel membrane production equipment and its production method.

[0039] Figure 2This is a schematic diagram of the feeding device, driving structure, guide plate, limiting structure, and collecting component in one embodiment of the aerogel membrane production equipment and production method.

[0040] Figure 3 for Figure 2 A schematic diagram of the structure of the feed removal device.

[0041] Figure 4 This is a schematic diagram of the limiting structure in one embodiment of an aerogel membrane production equipment and its production method.

[0042] Figure 5 An exploded view of the limiting structure in one embodiment of the aerogel membrane production equipment and production method.

[0043] Figure 6 This is a schematic diagram of the driving structure in one embodiment of an aerogel membrane production equipment and its production method.

[0044] Figure 7 This is a schematic diagram of the drive structure and support plate in one embodiment of an aerogel membrane production equipment and its production method.

[0045] Figure 8 This is a schematic diagram of the structure of the guide plate in one embodiment of the aerogel membrane production equipment and production method.

[0046] Figure 9 This is a schematic diagram of the positional structure of the scraper and support rod in one embodiment of an aerogel membrane production equipment and method.

[0047] Figure 10 An exploded view of the supporting rod structure in one embodiment of the aerogel membrane production equipment and production method.

[0048] In the diagram: 1. Base; 2. Traction device; 3. Hot pressing device; 4. Cooling device; 5. Feeding device; 501. Feeding head; 6. Bracket; 7. Linear drive module; 8. Sliding component; 9. Guide rod; 10. Sliding connecting block; 11. Support plate; 1101. Arc groove; 1102. Straight groove; 12. First convex shaft; 13. Guide plate; 1301. First horizontal groove; 1302. Inclined groove; 1303. Second horizontal groove. 1304. Flat groove; 14. Vertical groove; 15. Guide; 16. Scraper; 17. Hysteresis groove; 18. Fitting groove; 19. Abutment shaft; 20. Slotted wheel; 21. Cylindrical spring; 22. Collecting plate; 23. Connecting member; 24. Second convex shaft; 25. Inclined plate; 26. Abutment surface; 27. Deflector; 28. Right-angle abutment part; 29. ​​Trigger; 20. Bearing plate. Detailed Implementation

[0049] 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.

[0050] 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.

[0051] Please see Figures 1-8 In this embodiment of the invention, an aerogel membrane production device includes: a base 1, a driving structure, a guide plate 13, a limiting structure, and a collection component. It enables the scraper 15 to switch positions to the other side of the aerogel powder after excess aerogel powder is scraped onto one side of the hot-pressed membrane. When the scraper 15 moves in the reverse direction, it can also cause the excess aerogel powder to move in the opposite direction to perform a secondary scraping operation. This improves the uniformity of the aerogel powder on the hot-pressed membrane through multiple scraping operations and allows for the reuse of excess aerogel powder, reducing waste and subsequent collection and reuse costs. Specifically:

[0052] Two sets of traction devices 2 for pulling hot-pressed films are symmetrically arranged on the base 1. A hot-pressing device 3 and a cooling device 4 are arranged between the two sets of traction devices 2. A feeding device 5 is arranged on one side of the two sets of traction devices 2. During production, one end of the two hot-pressed films is placed between the two sets of traction devices 2. The traction devices 2 can drive the two hot-pressed films to move by pulling. One hot-pressed film is guided into the traction device 2 from the upper part of the feeding device 5, and the other hot-pressed film is guided into the traction device 2 from the lower part of the feeding device 5. The feeding device 5 can apply aerogel powder to the lower hot-pressed film. Then the two hot-pressed films are pressed together by the hot-pressing device 3 and cooled by the cooling device 4.

[0053] Multiple sets of feed heads 501 are provided and installed at the bottom of the feed device 5. The feed heads 501 can release aerogel powder onto the hot press film in a dotted manner. Specifically, the feed heads 501 are distributed in rows and columns, so that when releasing aerogel powder, the aerogel powder can be evenly released onto the hot press film in a dotted manner. Then, under the action of the scraper 15, the aerogel powder is evenly dispersed on the hot press film.

[0054] Furthermore, there is a gap between two adjacent aerogel powder release points. When the scraper 15 acts on the aerogel powder, it can scrape and spread the aerogel powder, so that the aerogel powder can be evenly spread on the hot press film.

[0055] It should be noted that in order to ensure that the aerogel powder can be evenly distributed on the hot press film, the actual amount of aerogel powder released needs to be greater than the theoretical amount required for the aerogel powder to achieve uniform dispersion. That is, when the aerogel powder released on the hot press film is evenly distributed on the hot press film, there will be some excess aerogel powder to ensure that the aerogel powder can be fully and evenly distributed on the hot press film.

[0056] Please see Figures 4-7 The drive structure is connected to the support plate 26 on the base 1. A scraper 15 is rotatably mounted on the drive structure, and a trigger 25 is provided on the drive structure. It is worth noting that there is a certain gap between the scraper 15 and the hot press film, so that when the scraper 15 follows the drive structure, the gap between the scraper 15 and the hot press film can be used to make the aerogel powder evenly distributed on the hot press film.

[0057] The drive structure includes a bracket 6 disposed on the support plate 26, a sliding member 8 slidably installed inside the bracket 6, and the sliding member 8 being connected to a linear drive module 7 connected to the bracket 6;

[0058] The sliding member 8 is provided with a guide rod 9 perpendicular to the bearing plate 26. A sliding connecting block 10 is slidably installed on the guide rod 9. A support plate 11 that is rotatably connected to the scraper 15 is connected to the sliding connecting block 10. The abutting shaft 16 passes through the arc groove 1101 on the support plate 11.

[0059] Initially, under the action of the limiting structure, the scraper 15 is in an inclined state. For ease of understanding, the end of the scraper 15 furthest from its rotation center is marked as end a, and the other end as end b. When the scraper 15 moves, end a is behind end b along the direction of movement of the scraper 15. This allows the scraper 15 to move at an inclined angle when the linear drive module 7 drives the scraper 15. At this time, since the actual amount of aerogel powder released is greater than the theoretical amount required for uniform dispersion, the excess aerogel powder can be carried away by the scraper 15. Furthermore, as the scraper 15 moves, this excess aerogel powder is further dispersed. The aerogel powder can move towards end a along the length of the scraper 15. Due to the inclination of the scraper 15, the aerogel powder can converge towards the end of the scraper 15, thus enabling the aerogel powder to move along the length of the hot press film. Of course, the movement of the scraper 15 can also drive the excess aerogel powder to move along the width of the hot press film. The combination of the two movement modes enables the excess aerogel powder to make compound movement after the release point, ensuring that the excess aerogel powder can uniformly fill the gap between two adjacent aerogel release points, thus ensuring the uniformity of the aerogel powder on the hot press film.

[0060] Furthermore, when the scraper 15 moves to the end of its stroke, the trigger 25 can cooperate with the abutment shaft 16 to cause the scraper 15 to deflect symmetrically in the opposite direction, and the limiting structure positions the scraper 15 in an inclined state so that when the scraper 15 moves in the opposite direction, the above process can be repeated to achieve secondary scraping and further improve the uniformity of the aerogel powder distribution on the hot press film.

[0061] With the above settings, when the scraper 15 makes reciprocating linear motion, it can drive the excess aerogel powder to move, so that the aerogel powder can generate a composite motion along the length and width of the hot-pressed film. In this way, the excess aerogel powder can fill the gap between two adjacent aerogel powder release points, so that the aerogel powder can be evenly distributed on the hot-pressed film, thereby improving the quality of the aerogel film after hot pressing.

[0062] Please see Figure 8 The guide plate 13 is disposed on the bearing plate 26, and the guide plate 13 is provided with a guide groove. The first convex shaft 12, which is rotatably mounted on the drive structure, cooperates with the guide groove and can perform a lifting action when the scraper 15 moves to the end of the stroke.

[0063] The guide groove includes a first horizontal groove 1301 and a second horizontal groove 1303 disposed on the guide plate 13 and parallel to each other. The second horizontal groove 1303 is provided in two sets, and one end of the second horizontal groove 1303 is connected to the end of the first horizontal groove 1301 through a vertical groove 1304, and the other end is connected to the middle section of the first horizontal groove 1301 through an inclined groove 1302.

[0064] A guide 14 is rotatably mounted on one end of the inclined groove 1302 away from the second horizontal groove 1303.

[0065] In the initial state, the first convex shaft 12 is located at one end of the first horizontal groove 1301. When the linear drive module 7 operates, it can drive the first convex shaft 12 and the scraper 15 to move. At this time, the first convex shaft 12 will move along the length direction of the first horizontal groove 1301. When the first convex shaft 12 abuts against the first set of guide members 14, the guide members 14 can deflect. After the first convex shaft 12 separates from the set of guide members 14, the guide members 14 can automatically reset under the action of gravity. As the scraper 15 and the first convex shaft 12 move, when the a end of the scraper 15 separates from the hot-press film, the first convex shaft 12 will abut against another set of guide members 14 and move along the inclined groove 1302 towards the second horizontal groove 1303 under the guidance of the other set of guide members 14, thus causing the scraper to move. 15 moves away from the support plate 26. At this time, scraper 15 can separate from the excess aerogel powder. When the first convex shaft 12 moves in the second horizontal groove 1303, scraper 15 can move to the other side of the excess aerogel powder. Subsequently, the first convex shaft 12 moves through the vertical groove 1304 to the other end of the first horizontal groove 1301. At this time, scraper 15 is on the side away from the hot press film relative to the excess aerogel powder. When scraper 15 moves in the opposite direction, it can drive the excess aerogel powder to move in the opposite direction and perform secondary scraping. On the one hand, the uniformity of aerogel powder on the hot press film can be improved by multiple scraping. On the other hand, the excess aerogel powder can be reused, reducing the waste of aerogel powder and the cost of subsequent collection and reuse.

[0066] With the above settings, after the excess aerogel powder is scraped and spread to one side of the hot press film, the scraper 15 can be switched to the other side of the aerogel powder. When the scraper 15 moves in the opposite direction, it can drive the excess aerogel powder to move in the opposite direction to perform a secondary scraping and spreading operation. On the one hand, the uniformity of the aerogel powder on the hot press film can be improved by multiple scraping and spreading. On the other hand, the excess aerogel powder can be reused, reducing the waste of aerogel powder and the cost of subsequent collection and reuse.

[0067] Please see Figures 4-5 The limiting structure connects the driving structure and the scraper 15. The limiting structure enables the scraper 15 to form a predetermined angle with the length direction of the hot-pressed film. The abutment shaft 16 connecting the scraper 15 cooperates with the trigger 25, enabling the scraper 15 to perform a deflection action.

[0068] The limiting structure includes a straight groove 1102 disposed on the support plate 11 and a grooved wheel 19 rolled in the straight groove 1102. The grooved wheel 19 is connected to an energy storage kit mounted on the scraper 15. The energy storage kit includes a fitting groove 1502 disposed along the length direction of the scraper 15. A horizontal shaft 18 is installed in the fitting groove 1502, and a slider 17 slidably connected to the horizontal shaft 18 is installed in the fitting groove 1502. The slider 17 is rotatably connected to the grooved wheel 19.

[0069] A cylindrical spring 20 is also fitted on the horizontal shaft 18. One end of the cylindrical spring 20 is connected to the side wall of the fitting groove 1502, and the other end is connected to the slider 17.

[0070] In the initial state, the cylindrical spring 20 is compressed, and the grooved wheel 19 is at one end of the straight groove 1102. This allows the scraper 15 to be in a stable tilted state, preventing uneven distribution of aerogel powder on the hot-press film due to wobbling of the scraper 15 during the scraping process. When the first convex shaft 12 moves to the second horizontal groove 1303, as the first convex shaft 12 continues to move, the abutment shaft 16 will abut against the trigger 25, thereby driving the scraper 15 to deflect. At this time, the grooved wheel 19 can move along the length of the straight groove 1102, further compressing the cylindrical spring 20, thus storing energy. The elastic potential energy, and when the grooved wheel 19 passes the middle of the straight groove 1102, the cylindrical spring 20 can release the elastic potential energy to make the grooved wheel 19 actively move towards the other end of the straight groove 1102. Since the scraper 15 is in a state of separation from the excess aerogel powder at this time, when the scraper 15 deflects, it will not carry the excessive aerogel powder, thereby preventing the scraper 15 from carrying the aerogel powder to move with a certain speed. This would cause the excessive aerogel powder to not stop moving immediately due to inertia when the scraper 15 stops moving, resulting in over-movement and preventing the scraper 15 from being on the other side of the excess aerogel powder when the height is reset.

[0071] Through the above settings, the scraper 15 can have high stability during the scraping process, preventing uneven distribution of aerogel powder on the hot press film due to the wobbling of the scraper 15. When the scraper 15 deflects, it is separated from the excess aerogel powder, thereby avoiding the phenomenon that the excess aerogel powder deflects synchronously with the scraper 15. When the scraper 15 deflects in the opposite direction and moves in the opposite direction, it can drive the excess aerogel powder to move in the opposite direction, improving the utilization rate of the excess aerogel powder.

[0072] Please see Figures 3-5 , Figures 9-10The collecting component is connected to the scraper 15. When the scraper 15 moves to the side of the hot press film, the collecting component can scrape the aerogel gathered on the scraper 15 to one end near the rotation center of the scraper 15.

[0073] The collection assembly includes two sets of collection plates 21 symmetrically arranged on both sides of the scraper 15. The two sets of collection plates 21 are connected by a connector 2101. The connector 2101 can slide within a hysteresis groove 1501 provided along the length direction of the scraper 15.

[0074] The collection assembly also includes two sets of support rods connected to the feeding device 5. The support rods cooperate with the second convex shaft 22 connecting the two sets of collection plates 21, so that when the second convex shaft 22 abuts against the support rods, the collection plates 21 can move along the length direction of the scraper 15.

[0075] The support rod includes an inclined plate 23 mounted on the feeding device 5. The inclined plate 23 has two symmetrically mounted deflector 24s at its two ends. A torsion spring is provided on the shaft of the deflector 24, and the deflector 24 is connected to the inclined plate 23 by a stop structure. The stop structure enables the deflector 24 to deflect unidirectionally relative to the inclined plate 23. The stop structure includes two abutment surfaces 2301 symmetrically arranged on the inclined plate 23 and a right-angle abutment part 2401 provided at one end of the deflector 24 near its rotation center.

[0076] In the initial state, both sets of collecting plates 21 are at end a of scraper 15. At this time, when scraper 15 and collecting plate 21 move, scraping and spreading operations can be performed. At the same time, since the excess aerogel powder can move along scraper 15, when the excess aerogel powder moves to end a of scraper 15, it can be collected by collecting plate 21, thus preventing the excess aerogel powder from separating from scraper 15 and causing strip-shaped aerogel powder protrusions to appear on the hot press film.

[0077] When the scraper 15 moves past the side of the hot-pressed film, the second convex shaft 22 can abut against the deflector 24 at the lower end of the inclined plate 23. The right-angle abutment portion 2401 on the deflector 24 is in abutment with the abutment surface 2301, preventing the deflector 24 from deflecting. At this time, the second convex shaft 22 can move along the deflector 24 and the inclined plate 23, so that the collecting plate 21 can move along the length of the scraper 15, pushing the excess aerogel powder at the scraper 15a end toward the b end. When the collecting plate 21 moves close to the b end, the second convex shaft 22 will abut against the deflector 24 at the upper end of the inclined plate 23. At this time, the second convex shaft 22 acts on the deflector 24, causing it to deflect (the right-angle abutment portion 2401 on the deflector 24 can move away from the abutment surface 2301). The torsion spring is compressed until the second convex shaft 22 separates from the deflector 24 as the movement continues. At this time, the deflector 24 returns to its original position under the action of the torsion spring. Then, when the scraper 15 moves in the opposite direction, the second convex shaft 22 abuts against the deflector 24 at the upper end of the inclined plate 23. At this time, the deflector 24 cannot deflect. Under the guidance of the deflector 24 and the inclined plate 23, the collecting plate 21 moves along the length of the scraper 15 and returns to end a. At this time, the second convex shaft 22 abuts against the deflector 24 at the lower end of the inclined plate 23 and deflects the deflector 24. Then the scraper 15 can perform scraping and spreading operations. When cooperating with the support rod on the other side, the above steps are repeated. Based on the above process, when the scraper 15 moves to the end of the stroke, the excess aerogel powder can be removed.

[0078] With the above configuration, when the scraper 15 moves to the side of the hot press film, the collecting plate 21 can perform a reciprocating motion along the length of the scraper 15 to push the excess aerogel powder from end a to end b of the scraper 15. When the scraper 15 moves in the opposite direction, the excess aerogel powder can move again from end b to end a of the scraper 15, thus achieving better secondary utilization of the excess aerogel powder.

[0079] It is worth emphasizing that the order in which the height of the collecting plate 21 and the scraper 15 changes is: the collecting plate 21 moves first, and then the height of the scraper 15 changes.

[0080] As an embodiment of the present invention, a method for producing aerogel membranes using the aforementioned production equipment is also provided, comprising the following steps:

[0081] Step 1: Place one end of the two layers of hot-pressed film into the two sets of traction devices 2, start the traction devices 2 to pull the two layers of hot-pressed film, and then control the traction devices 2 to stop moving.

[0082] Step 2: Control the feeding device 5 to release the aerogel powder in dots onto the lower hot press film;

[0083] Step 3: Control the drive structure to move the scraper 15 along the width of the hot press film, so that the aerogel powder can be evenly spread on the hot press film. At the same time, the excess aerogel powder can move towards the end of the scraper 15 away from its rotation center under the drive of the scraper 15 and collect on the collection component.

[0084] Step 4: When the scraper 15 moves to the end of the hot press film, the collecting component is activated, so that the aerogel powder gathered on the collecting component can move towards the end of the scraper 15 near its rotation center.

[0085] Step 5: When the scraper 15 moves to the end of its stroke, the guide plate 13 engages with the first convex shaft 12, causing the scraper 15 and the collecting assembly to move away from the lower hot-pressed film. At the same time, the trigger 25 engages with the abutment shaft 16, causing the tilt angle of the scraper 15 to reverse and the scraper 15 to pass over the excessive aerogel powder. Then the scraper 15 moves in the opposite direction to the reset position.

[0086] Step 6: Start the traction device 2 to bond the two hot-pressed films together. At the same time, under the action of the hot-pressing device 3 and the cooling device 4, the films are pressed together and cooled down.

[0087] Step 7: Repeat steps 2 through 6 above for continuous production.

[0088] 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.

[0089] 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. An aerogel membrane production apparatus, comprising: The base (1) is symmetrically provided with two sets of traction devices (2) for pulling the hot-pressed film. A hot-pressing device (3) and a cooling device (4) are provided between the two sets of traction devices (2). A feeding device (5) is provided on one side of the two sets of traction devices (2). Its characteristic is that it further includes: The feed head (501) is provided in multiple sets and installed at the bottom of the feed device (5). The feed head (501) can release aerogel powder onto the hot press film in a dotted manner. A drive structure is connected to a support plate (26) disposed on the base (1). A scraper (15) is rotatably mounted on the drive structure, and a trigger (25) is disposed on the drive structure. A guide plate (13) is provided on the bearing plate (26). A guide groove is provided on the guide plate (13). A first convex shaft (12) rotatably mounted on the drive structure cooperates with the guide groove, and can perform a lifting action when the scraper (15) moves to the end of the stroke. The limiting structure connects the driving structure and the scraper (15). The limiting structure enables the scraper (15) to form a predetermined angle with the length direction of the hot-pressed film. The abutment shaft (16) connecting the scraper (15) cooperates with the trigger (25) to enable the scraper (15) to perform a deflection action. A collection component is connected to the scraper (15). When the scraper (15) moves to the side of the hot press film, the collection component can scrape the aerogel gathered on the scraper (15) to one end near the rotation center of the scraper (15). The collection assembly includes two sets of collection plates (21) symmetrically arranged on both sides of the scraper (15). The two sets of collection plates (21) are connected by a connector (2101). The connector (2101) can slide in a hysteresis groove (1501) arranged along the length direction of the scraper (15). The collection assembly also includes two sets of support rods connected to the feeding device (5). The support rods cooperate with the second convex shaft (22) connecting the two sets of collection plates (21). When the second convex shaft (22) abuts against the support rod, the collection plate (21) moves along the length direction of the scraper (15). The support rod includes an inclined plate (23) mounted on the feeding device (5). The inclined plate (23) has a deflector (24) symmetrically mounted at both ends. A torsion spring is provided on the shaft of the deflector (24). The deflector (24) and the inclined plate (23) are connected by a stop structure. The stop structure enables the deflector (24) to deflect unidirectionally relative to the inclined plate (23). The stop structure includes two abutment surfaces (2301) symmetrically arranged on the inclined plate (23) and a right-angle abutment part (2401) arranged at one end of the deflector (24) near its rotation center.

2. The aerogel membrane production equipment according to claim 1, characterized in that, The drive structure includes a bracket (6) disposed on the support plate (26), a sliding member (8) is slidably installed in the bracket (6), and the sliding member (8) is connected to a linear drive module (7) connected to the bracket (6); The sliding member (8) is provided with a guide rod (9) perpendicular to the bearing plate (26), and a sliding connecting block (10) is slidably installed on the guide rod (9). A support plate (11) that is rotatably connected to the scraper (15) is connected to the sliding connecting block (10). The abutting shaft (16) passes through the arc groove (1101) provided on the support plate (11).

3. The aerogel membrane production equipment according to claim 1, characterized in that, The guide groove includes a first horizontal groove (1301) and a second horizontal groove (1303) disposed on the guide plate (13) and parallel to each other. The second horizontal groove (1303) is provided in two sets, and one end of the second horizontal groove (1303) is connected to the end of the first horizontal groove (1301) through a vertical groove (1304), and the other end is connected to the middle section of the first horizontal groove (1301) through an inclined groove (1302). A guide (14) is rotatably mounted on the end of the inclined groove (1302) away from the second horizontal groove (1303).

4. The aerogel membrane production equipment according to claim 2, characterized in that, The limiting structure includes a straight groove (1102) disposed on the support plate (11) and a grooved wheel (19) rolled in the straight groove (1102), the grooved wheel (19) being connected to an energy storage kit mounted on the scraper (15).

5. The aerogel membrane production equipment according to claim 4, characterized in that, The energy storage kit includes a fitting groove (1502) arranged along the length direction of the scraper (15), a horizontal shaft (18) is installed in the fitting groove (1502), and a slider (17) slidably connected to the horizontal shaft (18) is installed in the fitting groove (1502), and the slider (17) is rotatably connected to the groove wheel (19). A cylindrical spring (20) is also fitted on the horizontal shaft (18). One end of the cylindrical spring (20) is connected to the side wall of the fitting groove (1502), and the other end is connected to the slider (17).

6. A method for producing aerogel membranes using the production equipment as described in any one of claims 1 to 5, characterized in that, Includes the following steps: Step 1: Place one end of the two hot-pressed films into the two sets of traction devices (2), start the traction devices (2) to pull the two hot-pressed films, and then control the traction devices (2) to stop moving. Step 2: Control the feeding device (5) to release the aerogel powder in dots onto the lower hot press film; Step 3: Control the drive structure to move the scraper (15) along the width of the hot press film, so that the aerogel powder can be evenly spread on the hot press film. At the same time, the excess aerogel powder can move towards the end of the scraper (15) away from its rotation center under the drive of the scraper (15) and collect on the collection component. Step 4: When the scraper (15) moves to the end of the hot-press film, the collecting component is activated, so that the aerogel powder gathered on the collecting component can move toward the end of the scraper (15) near its rotation center. Step 5: When the scraper (15) moves to the end of its stroke, the guide plate (13) engages with the first convex shaft (12) to drive the scraper (15) and the collecting assembly away from the lower hot-pressed film. At the same time, the trigger (25) engages with the abutment shaft (16) to reverse the tilt angle of the scraper (15) and make the scraper (15) pass over the excess aerogel powder. Then the scraper (15) moves in the opposite direction to the reset position. Step 6: Start the traction device (2) to bond the two layers of hot-press film together. At the same time, under the action of the hot-press device (3) and the cooling device (4), the film is pressed together and cooled down. Step 7: Repeat steps 2 through 6 above for continuous production.

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