Aerogel film production equipment and production method thereof

Abstract

The invention relates to the technical field of aerogel film production, in particular to aerogel film production equipment and a production method thereof.The aerogel film production equipment comprises multiple sets of feeding heads installed at the bottom of a feeding device; a scraping plate is rotationally mounted on the driving structure, and a triggering piece is arranged on the driving structure; the guide plate is arranged on the bearing plate, a guide groove is formed in the guide plate, and a first convex shaft rotationally installed on the driving structure is matched with the guide groove and can execute one-time lifting action when the scraper moves to the stroke end; the limiting structure is connected with the driving structure and the scraping plate, the limiting structure can enable the scraping plate and the length direction of the hot-pressing film to form a preset included angle, and an abutting shaft connected with the scraping plate is matched with the triggering piece so that the scraping plate can execute one-time deflection action; and when the scraping plate moves to the side part of the hot-pressing film, the collecting assembly can scrape and convey the aerogel gathered on the scraping plate to one end close to the rotating center of the scraping plate, so that the uniformity and the utilization rate of the aerogel film are improved.

Description

Technical Field

[0001] The invention relates to the technical field of aerogel film production, in particular to an aerogel film production device and a production method thereof. Background Art

[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. It can effectively block heat conduction, heat convection and thermal radiation. It is widely used in petrochemical, new energy vehicles, medical and other fields.

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

[0004] In the above document, the negative pressure mechanism can make the aerogel powder single layer densely arranged on the lower hot-pressed film. At this time, the discharge control requirements of the hopper need to be very strict. Slight deviations may cause the aerogel powder to be unable to be evenly distributed on the hot-pressed film or there is excessive aerogel powder on the hot-pressed film, causing uneven thickness of the aerogel film after molding, both of which affect the quality of the aerogel film. Summary of the invention

[0005] The object of the present invention is to provide an aerogel film production device and a production method thereof to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: An aerogel film production device, comprising: A base, on which two groups of traction devices for traction of hot-pressed films are symmetrically arranged, a hot-pressing device and a cooling device are arranged between the two groups of traction devices, and a feeding device is arranged on one side of the two groups of traction devices; A feeding head, which is provided in multiple groups and installed at the bottom of the feeding device, and the feeding head can release the aerogel powder on the hot pressing film in a dot shape; A driving structure connected to a bearing plate arranged on the base, a scraper is rotatably mounted on the driving structure, and a trigger member is arranged on the driving structure; A guide plate is arranged on the bearing plate, and a guide groove is arranged on the guide plate. A first convex shaft rotatably mounted on the driving structure cooperates with the guide groove, and can perform a lifting action when the scraper moves to the end of the stroke; A limiting structure, connecting the driving structure and the scraper, the limiting structure can make the scraper and the length direction of the hot pressing film form a predetermined angle, and the abutment shaft connected to the scraper cooperates with the trigger member to enable the scraper to perform a deflection action; The collecting assembly is connected to the scraper. When the scraper moves to the side of the hot pressing film, the collecting assembly can scrape the aerogel gathered on the scraper to one end close to the rotation center of the scraper.

[0007] As a further solution of the present invention: the driving structure comprises a bracket arranged on the bearing plate, a sliding member is slidably installed in the bracket, and the sliding member is connected to a linear driving module connected to the bracket; The sliding member is provided with a guide rod perpendicular to the bearing plate, a sliding connection block is slidably mounted on the guide rod, a support plate rotatably connected to the scraper is connected to the sliding connection block, and the abutment shaft passes through an arc groove provided on the support plate.

[0008] As a further solution of the present invention: the guide groove comprises a first horizontal groove and a second horizontal groove which are arranged on the guide plate and are parallel to each other, the second horizontal groove is provided in two groups, 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; A guide is rotatably mounted on one end of the inclined groove away from the second horizontal groove.

[0009] As a further solution of the present invention: the limiting structure includes a straight groove arranged on the support plate and a groove wheel rollingly arranged in the straight groove, and the groove wheel is connected to the energy storage kit installed on the scraper.

[0010] As a further solution of the present invention: the energy storage kit includes an embedding groove arranged along the length direction of the scraper, a horizontal axis is installed in the embedding groove, and a slider slidably connected to the horizontal axis is installed in the embedding groove, and the slider is rotatably connected to the groove wheel; A columnar spring is also sleeved on the transverse axis, one end of the columnar spring is connected to the side wall of the fitting groove, and the other end is connected to the sliding block.

[0011] As a further solution of the present invention: the collecting assembly comprises two groups of collecting plates symmetrically arranged on both sides of the scraper, the two groups of collecting plates are connected by a connecting piece, and the connecting piece can slide in a retardation groove arranged along the length direction of the scraper; The collecting assembly also includes two groups of supporting rods connected to the feeding device, and the supporting rods cooperate with the second cams connecting the two groups of collecting plates, so that the collecting plates can move along the length direction of the scraper when the second cams abut against the supporting rods.

[0012] As a further solution of the present invention: the supporting rod member includes an inclined plate installed on the feeding device, and deflection members are symmetrically and rotatably installed on both ends of the inclined plate. A torsion spring is arranged on the rotating shaft of the deflection member, and the deflection member is connected to the inclined plate through a stop structure, and the stop structure can make the deflection member deflect unidirectionally relative to the inclined plate.

[0013] As a further solution of the present invention: the stop structure includes two abutment surfaces symmetrically arranged on the inclined plate and a right-angle abutment portion arranged at one end of the deflection member close to its rotation center.

[0014] A method for producing an aerogel film using the production equipment comprises the following steps: Step 1: placing one end of the two layers of hot-pressed films in two sets of traction devices, starting the traction devices, traction the two layers of hot-pressed films, and then controlling the traction devices to stop; Step 2: Control the action of the feeding device to release the aerogel powder in a dotted form onto the hot pressing film on the lower layer; Step 3: Control the action of the driving structure to make the scraper move along the width direction of the hot pressing film, so that the aerogel powder can be evenly spread on the hot pressing film, and at the same time, the excess aerogel powder can be driven by the scraper to move toward the end of the scraper away from its rotation center and gather on the collecting component; Step 4: When the scraper moves to the end of one side of the hot pressing film, the collecting assembly is activated, so that the aerogel powder gathered on the collecting assembly can move toward the end of the scraper close to its rotation center; Step 5: When the scraper moves to the end of the stroke, the guide plate cooperates with the first convex shaft, so that the scraper and the collecting assembly are driven to move away from the lower hot pressing film, and at the same time, the trigger member cooperates with the abutment shaft to reverse the inclination angle of the scraper and make the scraper pass over the excess aerogel powder, and then the scraper moves in the opposite direction to reset; Step 6: Start the traction device to make the two layers of hot pressing film stick together, and at the same time, under the action of the hot pressing device and the cooling device, press and cool down first; Step 7, repeat the above steps 2 to 6 for continuous production.

[0015] Compared with the prior art, the present invention has the following beneficial effects: By setting the driving structure and the scraper, the excess aerogel powder can be driven to move when the scraper makes a reciprocating linear motion, so that the aerogel powder can produce a composite motion along the length direction and the width direction of the hot pressing film, and then 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 pressing film, thereby improving the quality of the aerogel film after hot pressing; By means of the provided driving structure and guide plate, after the excess aerogel powder is scraped and spread to one side of the hot pressing film, the scraper position can be switched to the other side of the aerogel powder, and when the scraper moves in the reverse direction, the excess aerogel powder can be driven to move in the reverse direction to perform a secondary scraping operation. On the one hand, the uniformity of the aerogel powder on the hot pressing film can be improved by multiple scraping, and on the other hand, the excess aerogel powder can be reused, thereby reducing the waste of aerogel powder and the cost of subsequent collection and secondary utilization; By setting the limiting structure, the scraper can have a high stability during the scraping process, preventing the aerogel powder from being unevenly distributed on the hot pressing film due to the shaking of the scraper, and when the scraper is deflected, it is separated from the excess aerogel powder, thereby avoiding the phenomenon that the excess aerogel powder follows the synchronous deflection of the scraper, so that when the scraper moves in the reverse direction after reverse deflection, it can drive the excess aerogel powder to move in the reverse direction, thereby improving the utilization rate of the excess aerogel powder; By setting up a collecting assembly, when the scraper moves to the side of the hot pressing film, the collecting plate can perform a reciprocating motion along the length direction 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 direction of the scraper, thereby achieving better secondary utilization of the excess aerogel powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The present invention is a structural schematic diagram of an embodiment of an aerogel film production device and a production method thereof.

[0017] Figure 2 The present invention is a schematic structural diagram of a feeding device, a driving structure, a guide plate, a limiting structure and a collecting assembly in one embodiment of an aerogel film production device and a production method thereof.

[0018] Figure 3 for Figure 2 Schematic diagram of the structure of the removal feeding device.

[0019] Figure 4 The present invention is a schematic structural diagram of a limiting structure in one embodiment of an aerogel film production device and a production method thereof.

[0020] Figure 5 This is a structural explosion diagram of a limiting structure in one embodiment of an aerogel film production device and a production method thereof.

[0021] Figure 6 The present invention is a schematic structural diagram of a driving structure in one embodiment of an aerogel film production device and a production method thereof.

[0022] Figure 7The present invention is a schematic structural diagram of a driving structure and a supporting plate in one embodiment of an aerogel film production device and a production method thereof.

[0023] Figure 8 The present invention is a schematic structural diagram of a guide plate in one embodiment of an aerogel film production device and a production method thereof.

[0024] Fig. 9 The present invention is a schematic diagram of the position structure of a scraper and a support rod in one embodiment of an aerogel film production device and a production method thereof.

[0025] Fig.10 This is an exploded view of the structure of the support rod in one embodiment of the aerogel film production equipment and the production method thereof.

[0026] In the figure: 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 member; 9, guide rod; 10, sliding connection 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 water Flat groove; 1304, vertical groove; 14, guide member; 15, scraper; 1501, retardation groove; 1502, fitting groove; 16, abutment shaft; 17, slider; 18, horizontal shaft; 19, groove wheel; 20, cylindrical spring; 21, collecting plate; 2101, connecting member; 22, second cam shaft; 23, inclined plate; 2301, abutment surface; 24, deflection member; 2401, right-angle abutment portion; 25, trigger member; 26, bearing plate. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] 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 a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only embodiment.

[0029] See also Figure 1 to Figure 8In an embodiment of the present invention, an aerogel film production device includes: a base 1, a driving structure, a guide plate 13, a limiting structure and a collecting assembly, which can realize that after the excess aerogel powder is scraped and spread to one side of the hot pressing film, the scraper 15 is switched to the other side of the aerogel powder, and when the scraper 15 moves in the reverse direction, the excess aerogel powder can be driven to move in the reverse direction to perform a secondary scraping operation. On the one hand, the uniformity of the aerogel powder on the hot pressing film can be improved by multiple scraping, and on the other hand, the excess aerogel powder can be reused to reduce the waste of aerogel powder and the cost of subsequent collection and reuse, as follows: Two groups 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 groups of traction devices 2, and a feeding device 5 is arranged on one side of the two groups of traction devices 2. During production, one end of the two layers of hot pressed films is placed between the two groups of traction devices 2, and the traction device 2 can drive the two layers of hot pressed films to move by pulling, wherein one layer of hot pressed film is guided into the traction device 2 from the upper part of the feeding device 5, and the hot pressed film on the other side 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 layer of hot pressed film, and then the two layers of hot pressed film are pressed together through the hot pressing device 3, and cooled under the action of the cooling device 4.

[0030] The feeding heads 501 are provided with multiple groups and installed at the bottom of the feeding device 5. The feeding heads 501 can release the aerogel powder in a dotted manner on the hot pressing film. Specifically, the feeding heads 501 are distributed in rows and columns, so that when releasing the aerogel powder, the aerogel powder can be released in a dotted manner evenly on the hot pressing film, and then under the action of the scraper 15, the aerogel powder is evenly dispersed on the hot pressing film.

[0031] Furthermore, there is a gap between two adjacent aerogel powder release points. When the scraper 15 acts on the aerogel powder, the aerogel powder can be scraped and spread, so that the aerogel powder can be evenly spread on the hot pressing film.

[0032] It should be noted that in order to ensure that the aerogel powder can be evenly distributed on the hot pressing film, the actual release amount of the aerogel powder needs to be greater than the theoretical amount required for the aerogel powder to be evenly dispersed. That is, when the aerogel powder released on the hot pressing film is evenly distributed on the hot pressing film, there will be some excess aerogel powder to ensure that the aerogel powder can be fully and evenly distributed on the hot pressing film.

[0033] See also Figure 4~Figure 7The driving structure is connected to a supporting plate 26 arranged on the base 1, a scraper 15 is rotatably mounted on the driving structure, and a trigger member 25 is arranged on the driving structure. It is worth noting that there is a certain gap between the scraper 15 and the hot pressing film, so that when the scraper 15 follows the movement of the driving structure, the gap between the scraper 15 and the hot pressing film can be utilized to evenly distribute the aerogel powder on the hot pressing film.

[0034] The driving structure includes a bracket 6 disposed on the bearing plate 26, a sliding member 8 is slidably installed in the bracket 6, and the sliding member 8 is connected to a linear driving module 7 connected to the bracket 6; The sliding member 8 is provided with a guide rod 9 perpendicular to the bearing plate 26, a sliding connection block 10 is slidably mounted on the guide rod 9, a support plate 11 rotatably connected to the scraper 15 is connected to the sliding connection block 10, and the abutment shaft 16 passes through an arc groove 1101 provided on the support plate 11; In the initial state, under the action of the limiting structure, the scraper 15 is in an inclined state. For ease of understanding, one end of the scraper 15 away from its rotation center is marked as end a, and the other end is marked as end b. When the scraper 15 moves, along the movement direction of the scraper 15, end a is located behind end b, so that when the linear drive module 7 drives the scraper 15 to move, the scraper 15 can tilt. At this time, since the actual release amount of aerogel powder is greater than the theoretical amount required for the aerogel powder to complete uniform dispersion, the excess aerogel powder can be taken away by the scraper 15, and as the scraper 15 moves, these excess aerogel powders are removed. The gel powder can move toward end a along the length direction of the scraper 15, that is, due to the inclination of the scraper 15, the aerogel powder can be gathered toward the end of the scraper 15, and the aerogel powder can be moved along the length direction of the hot pressing film. Of course, the movement of the scraper 15 can also drive the excess aerogel powder to move along the width direction of the hot pressing film. The combination of the two movement modes can make the excess aerogel powder perform a compound movement after the release point, and ensure that the excess aerogel powder can evenly fill the gap between two adjacent aerogel release points, thereby ensuring the uniformity of the aerogel powder on the hot pressing film.

[0035] Furthermore, when the scraper 15 moves to the end of the stroke, the trigger member 25 can cooperate with the abutment shaft 16 to cause the scraper 15 to deflect symmetrically in the opposite direction, and the scraper 15 is tilted by the limiting structure 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 distribution of the aerogel powder on the hot pressing film.

[0036] Through the above arrangement, when the scraper 15 makes a reciprocating linear motion, it can drive the excess aerogel powder to move, so that the aerogel powder can produce a composite motion along the length direction and the width direction of the hot pressing film, and then 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 pressing film, thereby improving the quality of the aerogel film after hot pressing.

[0037] See also Figure 8 The guide plate 13 is arranged on the carrier plate 26, and a guide groove is arranged on the guide plate 13. The first convex shaft 12 rotatably mounted on the driving structure cooperates with the guide groove, and can perform a lifting action when the scraper 15 moves to the end of the stroke; The guide groove includes a first horizontal groove 1301 and a second horizontal groove 1303 which are arranged on the guide plate 13 and are parallel to each other. The second horizontal groove 1303 is provided in two groups, 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 member 14 is rotatably mounted on one end of the inclined groove 1302 away from the second horizontal groove 1303 .

[0038] In the initial state, the first convex shaft 12 is at one end of the first horizontal groove 1301. At this time, when the linear drive module 7 is in action, the first convex shaft 12 and the scraper 15 can be driven to move. At this time, the first convex shaft 12 will move along the length direction of the first horizontal groove 1301, and when the first convex shaft 12 abuts against the first group of guide members 14, the guide member 14 can be deflected. After the first convex shaft 12 is separated from the group of guide members 14, the guide member 14 can automatically reset under the action of gravity, and as the scraper 15 and the first convex shaft 12 move, when the a end of the scraper 15 is separated from the hot pressing film, the first convex shaft 12 will abut against another group of guide members 14, and under the guidance of the group of guide members 14, it will move along the inclined groove 1302 toward the second horizontal groove 1303, so that the scraper 15 moves away from the supporting plate 26, at which time the scraper 15 can be separated from the excess aerogel powder, and when the first convex shaft 12 moves in the second horizontal groove 1303, the scraper 15 can move to the other side of the excess aerogel powder, and then, the first convex shaft 12 moves to the other end of the first horizontal groove 1301 through the vertical groove 1304. At this time, the scraper 15 is on the side away from the hot pressing film relative to the excess aerogel powder, so that when the scraper 15 moves in the reverse direction, the excess aerogel powder can be driven to move in the reverse direction and perform secondary scraping. On the one hand, the uniformity of the aerogel powder on the hot pressing film can be improved through multiple scraping, and on the other hand, the excess aerogel powder can be reused, thereby reducing the waste of aerogel powder and the cost of subsequent collection and secondary utilization.

[0039] Through the above arrangement, it is possible to achieve that after the excess aerogel powder is scraped and spread to one side of the hot pressing film, the scraper 15 is switched to the other side of the aerogel powder, and when the scraper 15 moves in the reverse direction, the excess aerogel powder can be driven to move in the reverse direction to perform a secondary scraping operation. On the one hand, the uniformity of the aerogel powder on the hot pressing film can be improved by multiple scraping, and on the other hand, the excess aerogel powder can be reused, thereby reducing the waste of aerogel powder and the cost of subsequent collection and secondary utilization.

[0040] See also Figure 4~Figure 5 The limiting structure connects the driving structure and the scraper 15, and the limiting structure enables the scraper 15 to form a predetermined angle with the length direction of the hot pressing film, and the abutting shaft 16 connected to the scraper 15 cooperates with the trigger member 25 to enable the scraper 15 to perform a deflection action; The limiting structure includes a straight groove 1102 arranged on the support plate 11 and a groove wheel 19 rollingly arranged in the straight groove 1102, the groove wheel 19 is connected to the energy storage kit installed on the scraper 15, the energy storage kit includes an interlocking groove 1502 arranged along the length direction of the scraper 15, a transverse axis 18 is installed in the interlocking groove 1502, and a slider 17 slidably connected to the transverse axis 18 is installed in the interlocking groove 1502, and the slider 17 is rotatably connected to the groove wheel 19; A cylindrical spring 20 is sleeved on the transverse 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 .

[0041] In the initial state, the cylindrical spring 20 is in a compressed state, and the groove wheel 19 is at one end of the straight groove 1102. At this time, the scraper 15 can be in a stable tilted state to prevent the aerogel powder from being unevenly distributed on the hot pressing film due to the shaking 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 member 25, thereby driving the scraper 15 to deflect. At this time, the groove wheel 19 can move along the length direction of the straight groove 1102 and further compress the cylindrical spring 20, thereby storing energy. Elastic potential energy, and when the groove wheel 19 passes over the middle of the straight groove 1102, the cylindrical spring 20 can release the elastic potential energy to make the groove wheel 19 actively move toward the other end of the straight groove 1102, and because the scraper 15 is in a state of separation from the excess aerogel powder at this time, when the scraper 15 is deflected, it will not drive excessive aerogel powder, thereby preventing the scraper 15 from driving the aerogel powder to move at a certain speed, resulting in over-movement caused by the inability to stop the movement of the excess aerogel powder immediately due to inertia when the scraper 15 stops moving, and the scraper 15 cannot be reset to the other side of the excess aerogel powder.

[0042] Through the above-mentioned arrangement, the scraper 15 can have a high stability during the scraping process, preventing the aerogel powder from being unevenly distributed on the hot pressing film due to the shaking of the scraper 15, and when the scraper 15 is deflected, it is separated from the excess aerogel powder, thereby avoiding the phenomenon that the excess aerogel powder follows the synchronous deflection of the scraper 15, so that when the scraper 15 moves in the reverse direction after reverse deflection, it can drive the excess aerogel powder to move in the reverse direction, thereby improving the utilization rate of the excess aerogel powder.

[0043] See also Figure 3~Figure 5 , Figure 9~Figure 10 The collecting assembly is connected to the scraper 15. When the scraper 15 moves to the side of the hot pressing film, the collecting assembly can scrape the aerogel gathered on the scraper 15 to one end close to the rotation center of the scraper 15; The collecting assembly comprises two groups of collecting plates 21 symmetrically arranged on both sides of the scraper 15, and the two groups of collecting plates 21 are connected by a connecting member 2101, and the connecting member 2101 can slide in a retardation groove 1501 arranged along the length direction of the scraper 15; The collecting assembly further comprises two groups of supporting rods connected to the feeding device 5, the supporting rods cooperate with the second convex shafts 22 connecting the two groups of collecting plates 21, and can make the collecting plates 21 move along the length direction of the scraper 15 when the second convex shafts 22 abut against the supporting rods; The support rod includes an inclined plate 23 installed on the feeding device 5, and deflection members 24 are symmetrically and rotatably installed at both ends of the inclined plate 23. A torsion spring is arranged on the rotating shaft of the deflection member 24, and the deflection member 24 is connected to the inclined plate 23 through a stop structure. The stop structure can make the deflection member 24 unidirectionally deflect 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 portion 2401 arranged at one end of the deflection member 24 close to its rotation center.

[0044] In the initial state, both sets of collecting plates 21 are at the a-end of the scraper 15. At this time, when the scraper 15 and the collecting plates 21 are in motion, scraping and spreading operations can be performed. At the same time, since excess aerogel powder can move along the scraper 15, when the excess aerogel powder moves to the a-end of the scraper 15, it can be collected by the collecting plates 21, thereby preventing the excess aerogel powder from separating from the scraper 15, resulting in strip-shaped aerogel powder protrusions on the hot pressing film.

[0045] When the scraper 15 moves over the side of the hot pressing film, the second convex shaft 22 can abut against the deflection piece 24 at the lower end of the inclined plate 23, and the right-angle abutment portion 2401 on the group of deflection pieces 24 is in abutment with the abutment surface 2301, so that the group of deflection pieces 24 cannot deflect. At this time, the second convex shaft 22 can move along the group of deflection pieces 24 and the inclined plate 23, so that the collecting plate 21 can move along the length direction of the scraper 15, pushing the excess aerogel powder at the end of the scraper 15a toward the end b, and when the collecting plate 21 moves to near the end b, the second convex shaft 22 will abut against the deflection piece 24 at the upper end of the inclined plate 23. At this time, the second convex shaft 22 acts on the group of deflection pieces 24 to cause it to deflect (the right-angle abutment portion 2401 on the group of deflection pieces 24 can move away from the abutment surface 2301 ), and the torsion spring is compressed until the second cam 22 separates from the group of deflection members 24 as the movement proceeds. At this time, under the action of the torsion spring, the group of deflection members 24 is reset. Subsequently, when the scraper 15 moves in the opposite direction, the second cam 22 abuts against the deflection member 24 at the upper end of the inclined plate 23. At this time, the group of deflection members 24 cannot deflect. Under the guidance of the group of deflection members 24 and the inclined plate 23, the collecting plate 21 moves along the length direction of the scraper 15 and resets to the a end. At this time, the second cam 22 abuts against the deflection member 24 at the lower end of the inclined plate 23 and deflects the group of deflection members 24. Subsequently, the scraper 15 can perform the scraping operation and repeat the upper steps when cooperating with the support rod on the other side. Based on the above process, when the scraper 15 moves to the end of the stroke, the excess aerogel powder can be removed.

[0046] Through the above arrangement, when the scraper 15 moves to the side of the hot pressing film, the collecting plate 21 can perform a reciprocating motion along the length direction of the scraper 15 to push the excess aerogel powder from the a end of the scraper 15 to the b end, and when the scraper 15 moves in the reverse direction, the excess aerogel powder can move again from the b end of the scraper 15 toward the a end, thereby achieving better secondary utilization of the excess aerogel powder.

[0047] It is worth emphasizing that the order of height changes of the collecting plate 21 and the scraper 15 is: the collecting plate 21 moves first, and then the scraper 15 changes height.

[0048] As an embodiment of the present invention, a method for producing an aerogel film using the production equipment is also proposed, comprising the following steps: Step 1: placing one end of the two layers of hot pressed films in two sets of traction devices 2, starting the traction devices 2, traction the two layers of hot pressed films, and then controlling the traction devices 2 to stop moving; Step 2: Control the feeding device 5 to release the aerogel powder in the form of dots onto the hot pressing film at the lower layer; Step 3: Control the action of the driving structure to move the scraper 15 along the width direction of the hot pressing film, so that the aerogel powder can be evenly spread on the hot pressing film, and at the same time, the excess aerogel powder can be driven by the scraper 15 to move toward the end of the scraper 15 away from its rotation center and collect on the collecting assembly; Step 4: When the scraper 15 moves to the end of one side of the hot pressing film, the collecting assembly is activated, so that the aerogel powder gathered on the collecting assembly can move toward the end of the scraper 15 close to its rotation center; Step 5: When the scraper 15 moves to the end of the stroke, the guide plate 13 cooperates with the first convex shaft 12, so that the scraper 15 and the collecting assembly are driven to move away from the lower hot pressing film, and at the same time, the trigger member 25 cooperates with the abutment shaft 16 to reverse the inclination angle of the scraper 15 and make the scraper 15 pass over the excess aerogel powder, and then the scraper 15 moves in the opposite direction to reset; Step 6: Start the traction device 2 to make the two layers of hot pressing film stick together, and at the same time, under the action of the hot pressing device 3 and the cooling device 4, press and cool down first; Step 7, repeat the above steps 2 to 6 for continuous production.

[0049] It will be apparent to those skilled in the art that the 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 the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0050] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description 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 may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An aerogel film production device, comprising: A base (1), two groups of traction devices (2) for traction of hot-pressed films being symmetrically arranged on the base (1), a hot-pressing device (3) and a cooling device (4) being arranged between the two groups of traction devices (2), and a feeding device (5) being arranged on one side of the two groups of traction devices (2); It is characterized by further comprising: A feeding head (501) is provided in multiple groups and is installed at the bottom of the feeding device (5), and the feeding head (501) can release the aerogel powder in a dotted form onto the hot pressing film; A driving structure connected to a bearing plate (26) arranged on the base (1), a scraper (15) being rotatably mounted on the driving structure, and a trigger member (25) being arranged on the driving structure; A guide plate (13) is arranged on the bearing plate (26), a guide groove is arranged on the guide plate (13), and a first convex shaft (12) rotatably mounted on the driving structure cooperates with the guide groove to perform a lifting action when the scraper (15) moves to the end of the stroke; a limiting structure, connected to the driving structure and the scraper (15), the limiting structure being capable of causing the scraper (15) to form a predetermined angle with the length direction of the hot pressing film, and the abutment shaft (16) connected to the scraper (15) cooperating with the trigger member (25) to cause the scraper (15) to perform a deflection action; A collecting component is connected to the scraper (15), and when the scraper (15) moves to the side of the hot pressing film, the collecting component can scrape the aerogel gathered on the scraper (15) to an end close to the rotation center of the scraper (15).

2. The aerogel film production equipment according to claim 1, characterized in that: The driving structure comprises a bracket (6) arranged on the bearing plate (26), a sliding member (8) being slidably mounted in the bracket (6), and the sliding member (8) being connected to a linear driving module (7) connected to the bracket (6); The sliding member (8) is provided with a guide rod (9) perpendicular to the bearing plate (26); a sliding connection block (10) is slidably mounted on the guide rod (9); the sliding connection block (10) is connected to a support plate (11) rotatably connected to the scraper (15); and the abutment shaft (16) passes through an arc groove (1101) provided on the support plate (11).

3. The aerogel film production equipment according to claim 1, characterized in that: The guide groove comprises a first horizontal groove (1301) and a second horizontal groove (1303) which are arranged on the guide plate (13) and are parallel to each other, the second horizontal groove (1303) being provided in two groups, 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 member (14) is rotatably mounted on one end of the inclined groove (1302) away from the second horizontal groove (1303).

4. The aerogel film production equipment according to claim 2, characterized in that: The limiting structure comprises a straight groove (1102) arranged on the support plate (11) and a groove wheel (19) rollingly arranged in the straight groove (1102), and the groove wheel (19) is connected to the energy storage kit installed on the scraper (15).

5. The aerogel film production equipment according to claim 4, characterized in that: The energy storage kit comprises an engaging groove (1502) arranged along the length direction of the scraper (15), a transverse shaft (18) is installed in the engaging groove (1502), and a slider (17) slidably connected to the transverse shaft (18) is installed in the engaging groove (1502), and the slider (17) is rotationally connected to the groove wheel (19); A columnar spring (20) is also sleeved on the transverse axis (18), one end of the columnar spring (20) is connected to the side wall of the engaging groove (1502), and the other end is connected to the slider (17).

6. The aerogel film production equipment according to claim 1, characterized in that: The collecting assembly comprises two groups of collecting plates (21) symmetrically arranged on both sides of the scraper (15), the two groups of collecting plates (21) being connected via a connecting piece (2101), and the connecting piece (2101) being capable of sliding in a retardation groove (1501) arranged along the length direction of the scraper (15); The collecting assembly further comprises two groups of supporting rods connected to the feeding device (5), the supporting rods cooperating with second convex shafts (22) connecting the two groups of collecting plates (21), so that when the second convex shafts (22) abut against the supporting rods, the collecting plates (21) can move along the length direction of the scraper (15).

7. The aerogel film production equipment according to claim 6, characterized in that: The support rod comprises an inclined plate (23) mounted on the feeding device (5), and deflection members (24) are symmetrically and rotatably mounted at both ends of the inclined plate (23), a torsion spring is arranged on the rotating shaft of the deflection member (24), and the deflection member (24) is connected to the inclined plate (23) via a stop structure, and the stop structure can cause the deflection member (24) to deflect unidirectionally relative to the inclined plate (23).

8. The aerogel film production equipment according to claim 7, characterized in that: The stop structure comprises two abutment surfaces (2301) symmetrically arranged on the inclined plate (23) and a right-angle abutment portion (2401) arranged at one end of the deflection member (24) close to its rotation center.

9. A method for producing an aerogel film using the production equipment according to any one of claims 1 to 8, characterized in that: The following steps are involved: Step 1: placing one end of the two layers of hot pressed films in two sets of traction devices (2), starting the traction devices (2), traction the two layers of hot pressed films, and then controlling the traction devices (2) to stop moving; Step 2: controlling the feeding device (5) to release the aerogel powder in the form of dots onto the hot pressing film at the lower layer; Step 3: Controlling the action of the driving structure to move the scraper (15) along the width direction of the hot pressing film, so that the aerogel powder can be evenly spread on the hot pressing film, and at the same time, the excess aerogel powder can be driven by the scraper (15) to move toward the end of the scraper (15) away from its rotation center and collect on the collection component; Step 4: When the scraper (15) moves to the end of one side of the hot pressing film, the collecting assembly is activated, so that the aerogel powder gathered on the collecting assembly can move toward the end of the scraper (15) close to its rotation center; Step 5: When the scraper (15) moves to the end of the stroke, the guide plate (13) cooperates with the first convex shaft (12) so that the scraper (15) and the collecting assembly are driven to move away from the lower hot pressing film, and at the same time, the trigger member (25) cooperates with the abutment shaft (16) to reverse the inclination angle of the scraper (15) and make the scraper (15) pass over the excess aerogel powder, and then make the scraper (15) move in the opposite direction to reset; Step 6: Start the traction device (2) to make the two layers of hot pressing film stick together, and at the same time, under the action of the hot pressing device (3) and the cooling device (4), press them together and cool them down; Step 7, repeat the above steps 2 to 6 for continuous production.

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