Method for synthesizing and preparing aerogel composite material

Abstract

The invention relates to the technical field of aerogel composite material processing, in particular to an aerogel composite material synthesis and preparation method which comprises a cutting unit and a repressing unit. In the process of conveying the aerogel felt to the cutting table, in the cutting process and in the final discharging process, auxiliary pressing is conducted on the aerogel felt, the process of winding the dried aerogel felt into a roller is omitted, the flat single aerogel felt can be directly cut, subsequent packaging is facilitated, and the production efficiency is improved. And the processing efficiency of the whole product is also improved.

Description

Technical Field

[0001] The present invention relates to the technical field of aerogel composite material processing, and specifically to a method for synthesizing and preparing an aerogel composite material. Background Art

[0002] An aerogel composite material refers to a material formed by combining an aerogel with other materials through a certain process method. There are various types of it. Here, it mainly focuses on aerogel felt. Aerogel felt is a flexible thermal insulation felt with nano-silica or metal-based aerogel as the main material, which is compounded with carbon fiber, ceramic glass fiber cotton, or pre-oxidized fiber felt through a special process. It has the characteristics of being soft, easy to cut, low density, inorganic fireproof, overall hydrophobic, and environmentally friendly. Therefore, it has a wide range of applications. Its production process mainly includes: raw material preparation, sol preparation, aerogelation, forming, drying, and finished product processing. Since the aerogel felt needs to be cut through finished product processing before use, the cutting step is indispensable.

[0003] In addition to being in a roll shape, aerogel felt also has a single-sheet form. Currently, the single-sheet product is obtained by unfolding the roll-shaped product and then cutting it into pieces. However, due to the cutting after winding, the aerogel felt is extremely prone to arching, which not only affects the stacking stability of the product, but also requires auxiliary pressing during packaging to put the stacked aerogel felt into the packaging box, increasing the subsequent operation difficulty. Summary of the Invention

[0004] In view of the above problems, the embodiments of the present application provide a method for synthesizing and preparing an aerogel composite material to solve the technical problems in the related art that the aerogel felt needs to be flattened separately after cutting, increasing the processing cost and affecting the normal use of the aerogel felt. To achieve the above object, the embodiments of the present application provide the following technical solutions.

[0005] A method for synthesizing and preparing an aerogel composite material according to an embodiment of the present application includes the following steps: S1. Raw material preparation: Add silicate, sol thickener, stabilizer, and nano-silica into a reaction kettle according to a ratio, and stir and mix to obtain a uniform raw material slurry.

[0006] S2. Sol preparation: Heat the raw material slurry, and utilize the function of the sol thickener to make the colloidal particles aggregate to form a dense sol.

[0007] S3. Aerogelation: Pour the prepared sol into a forming mold, and evacuate the air through vacuum to volatilize the solvent in the sol colloid, so that the colloidal particles aggregate to form a gel structure.

[0008] S4. Forming: Take out the aerogel mold with the gel structure, and process the shape and size of the aerogel gel body through cutting, punching, and pressing.

[0009] S5. Drying: The formed aerogel gel body is dried to volatilize the residual solvent and moisture to generate an aerogel felt.

[0010] S6. Finished product processing: The dried aerogel felt is cut and processed.

[0011] Among them, the S steps are completed by using a cutting device. The cutting device includes a dryer, two rollers respectively arranged on the left and right sides of the dryer. The roller on the right is used to convey the aerogel gel body to the left so that it can be dried in the dryer. On the left side of the roller on the left, a conveying group is symmetrically arranged up and down. Each conveying group is composed of conveying cylinders evenly arranged in the left-right direction. The roller on the left and the conveying cylinders are used to convey the aerogel felt to the left. The cutting unit is arranged at the left end of the leftmost conveying cylinder and is used to cut the aerogel felt generated after drying. The re-flattening unit is arranged at the left end of the cutting unit and is used to re-flatten the cut aerogel felt. Two symmetrically arranged conveying rollers are arranged at the left end of the re-flattening unit. The conveying cylinders and the conveying rollers are both driven by an external stepping motor, and the rotational speeds of the conveying cylinders and the conveying rollers are the same.

[0012] The cutting unit includes a workbench. The workbench is arranged on the left side of the leftmost conveying cylinder. A moving member is arranged on the workbench. A cutting member is arranged on the moving member. A flattening member is arranged on the cutting member. A control member is arranged on the flattening member. An auxiliary member is arranged on the flattening member. The moving member drives the cutting member to move on the aerogel felt and perform cutting. The flattening member performs two flattenings on the aerogel felt in the front-back direction and the left-right direction during the cutting process. The control member controls the height of the flattening member to facilitate adjustment according to the thickness of the aerogel felt and facilitate the replacement of the tool on the cutting member. The auxiliary member increases the flattening effect. The re-flattening unit includes a rectangular box. The rectangular box is fixedly installed at the left end of the workbench. A material guiding driving member is arranged in the rectangular box. A supporting member is arranged on the material guiding driving member. A pressing member is arranged at the upper end of the rectangular box. The pressing member and the supporting member cooperate to re-flatten the cut aerogel felt. The material guiding driving member guides the aerogel felt after being re-flattened.

[0013] According to an embodiment of the present invention, the moving member includes a gantry bracket. Guide chutes 1 are symmetrically opened on the front and back of the workbench. Electric sliders 1 are slidably connected in the guide chutes 1. The upper ends of the electric sliders 1 are fixedly installed with a gantry bracket together. A guide chute 2 is opened at the left end of the gantry bracket. An electric slider 2 is slidably connected in the guide chute 2.

[0014] According to an embodiment of the present invention, the cutting member includes a rectangular plate. The left end of the electric slider two is fixedly installed with a rectangular plate. The left end of the rectangular plate is fixedly installed with a positioning housing. The middle part of the positioning housing is fixedly installed with a vibrating knife head. The right end of the positioning housing is fixedly installed with bending rods symmetrically before and after. The lower end of the right side of the bending rod is fixedly installed with a sliding block. A rectangular chute is opened at the upper end of the gantry bracket. The front and rear two sliding blocks are slidably connected to the rectangular chute before and after together.

[0015] According to an embodiment of the present invention, the flattening member includes a rectangular square column. Rectangular guide grooves are opened on the periphery of the positioning housing. A rectangular square column is slidably connected up and down in the rectangular guide grooves. Rectangular pressing felt strip plates are fixedly installed at the opposite ends of the front and rear two rectangular square columns. Rectangular pressing felt blocks are fixedly installed at the opposite ends of the left and right two rectangular square columns. The left end of the left pressing felt block is fixedly installed with concave-shaped extension plates symmetrically before and after. The front and rear two extension plates are symmetrically arranged. A cross-shaped moving block is slidably connected left and right between the two extension plates. A connecting spring is fixedly installed between the right end of the moving block and the left end of the left pressing felt block.

[0016] According to an embodiment of the present invention, the control member includes a positioning ring. The upper ends of the rectangular square columns are fixedly installed with a positioning ring together. A threaded rod is rotatably connected to the positioning housing. The threaded rod is in threaded connection with the positioning ring. A guide rod is fixedly installed at the upper end of the positioning housing and slidably penetrates through the positioning ring.

[0017] According to an embodiment of the present invention, the auxiliary member includes a rotating column one. Rounded corners are opened on the front and rear sides of the lower side of the pressing felt strip plate. Rounded corners are opened at the left and right ends of the lower side of the right pressing felt block and the right end of the lower side of the left pressing felt block. A plurality of rotating column one and rotating column two are rotatably connected to the lower end of the pressing felt strip plate and the lower end of the pressing felt block respectively. The central axis of the rotating column one is perpendicular to the central axis of the rotating column two. The rotating column one and the rotating column two are arranged staggeredly.

[0018] According to an embodiment of the present invention, the material guiding driving member includes a close-fitting plate. The close-fitting plate is fixedly installed at the bottom of the rectangular box. The left end of the close-fitting plate is fixedly installed with an electromagnetic plate. A rectangular discharge port is opened at the left end of the rectangular box and directly above the electromagnetic plate.

[0019] According to an embodiment of the present invention, the supporting member includes a fixing spring. Fixing springs are fixedly installed uniformly at the upper end of the close-fitting plate. An adjusting plate is fixedly installed at the upper ends of the fixing springs together. A supporting plate is slidably connected up and down in the middle of the rectangular box. In the initial state, the upper end surface of the supporting plate is flush with the upper end surface of the rectangular box. A limiting groove is opened at the lower end of the supporting plate. The right side of the adjusting plate is hinged to the left side of the limiting groove. A contact plate with magnetism is hinged to the left end of the supporting plate. The upper end of the contact plate is set as an inclined surface. The maximum rotation angle between the contact plate and the supporting plate is the same as the inclination angle of the inclined surface of the contact plate.

[0020] According to an embodiment of the present invention, the pressing member includes a right-angle bracket. A right-angle bracket is fixedly installed at the upper rear end of the rectangular box. A distance control cylinder is fixedly installed at the lower end of the horizontal section of the right-angle bracket. A pressing flat plate is fixedly installed at the telescopic end of the distance control cylinder. At the upper end of the rectangular box and symmetrically arranged before and after on the left side of the support plate, there are abutting blocks. The abutting blocks are slidably connected to the rectangular box before and after. The upper left end of the rectangular box is rotatably connected with a bidirectional screw rod. The front and rear sides of the bidirectional screw rod are respectively threadedly connected with the corresponding abutting blocks.

[0021] From the above technical solutions, it can be seen that the present invention has the following advantages:

[0022] 1. In the present invention, the dried aerogel felt is directly transported out and then cut. During the process of transporting it to the cutting table, during the cutting process, and during the final blanking process, the aerogel felt is assisted to be pressed, reducing the process of winding the dried aerogel felt into a roll, and directly being able to cut out flat single-piece aerogel felt, which not only facilitates subsequent packaging, but also improves the processing efficiency of the entire product.

[0023] 2. In the present invention, the contact plate is limited by the electromagnetic plate. With the cooperation of the adjustment plate, the support plate is smoothly rotated to an inclination angle equal to the inclination angle of the upper end surface of the contact plate, so as to achieve the purpose of smoothly discharging the aerogel felt after cutting and flattening from the equipment.

[0024] In addition to the technical problems solved by the embodiments of the present application described above, the technical features constituting the technical solutions, and the beneficial effects brought by these technical features of the technical solutions, the other technical problems that can be solved by the method for synthesizing and preparing an aerogel composite material provided by the embodiments of the present application, the other technical features included in the technical solutions, and the beneficial effects brought by these technical features will be further described in detail in the specific implementation manner. Description of the Drawings

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to the provided drawings.

[0026] Figure 1 Shows the work flow chart of the present invention.

[0027] Figure 2 Shows the main view three-dimensional structure schematic diagram provided by the embodiment of the present invention.

[0028] Figure 3 Shows the partial main view three-dimensional structure schematic diagram provided by the embodiment of the present invention.

[0029] Figure 4 Shows Figure 3 A local enlarged view of location N.

[0030] Figure 5 Shows Figure 3 A local enlarged view of point M.

[0031] Figure 6 A schematic diagram of a main cross-sectional plane structure provided according to an embodiment of the present invention is shown.

[0032] Figure 7 A schematic diagram of the main cross-sectional plane structure when the support plate is tilted is shown.

[0033] Figure 8 A schematic diagram of the bottom-up plan structure of the rotating column 1 and the rotating column 2 is shown.

[0034] Figure 9 The diagram shows the states of the cut aerogel felt after being arched and flattened.

[0035] Figure 10 A schematic diagram of aerogel felt cutting is shown.

[0036] The above drawings include the following reference numerals:

[0037] 1. Cutting unit; 11. Workbench; 12. Moving part; 121. Gantry bracket; 13. Cutting part; 131. Rectangular plate; 132. Positioning shell; 133. Oscillating knife head; 134. Bending rod; 135. Sliding block; 136. Rectangular slide; 14. Flattening part; 141. Rectangular square column; 142. Felt pressing strip; 143. Felt pressing block; 144. Extension plate; 145. Moving block; 146. Connecting spring; 15. Control part; 151. Positioning ring; 152. Threaded rod; 153. Guide rod; 16, auxiliary part; 161, rotating column one; 162, rotating column two; 2, re-flattening unit; 21, rectangular box; 22, material guide drive; 221, close contact plate; 222, electromagnetic plate; 223, discharge port; 23, support member; 231, fixing spring; 232, adjustment plate; 233, support plate; 234, limit groove; 235, contact plate; 24, pressing member; 241, right-angle bracket; 242, distance control cylinder; 243, flat plate; 244, push block; 245, bidirectional screw. DETAILED DESCRIPTION

[0038] To make the above objects, features, and advantages of the present invention more apparent and understandable, the following detailed description of the specific embodiments of the present invention will be provided in conjunction with the accompanying drawings. Many specific details are set forth in the following description to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0039] Referring to Figure 1 , a method for synthesizing and preparing an aerogel composite material, comprising the following steps: S1. Raw material preparation: Add silicate, sol thickener, stabilizer, and nano-silica into a reaction kettle in proportion, and stir and mix to obtain a uniform raw material slurry.

[0040] S2. Sol preparation: Heat the raw material slurry, and use the function of the sol thickener to cause the colloidal particles to aggregate to form a dense sol.

[0041] S3. Aerogelation: Pour the prepared sol into a molding mold, and evacuate the air through vacuum to volatilize the solvent in the sol colloid, so that the colloidal particles aggregate to form a gel structure.

[0042] S4. Shaping: Take out the aerogel mold with the gel structure, and process the shape and size of the aerogel gel body through cutting, punching, and pressing.

[0043] S5. Drying: Dry the shaped aerogel gel body to volatilize the remaining solvent and moisture to generate an aerogel felt.

[0044] S6. Finished product processing: Cut and process the dried aerogel felt.

[0045] Referring to Figure 2 , in which step S6 is completed by using a cutting device. The cutting device includes a dryer, two rollers respectively arranged on the left and right sides of the dryer. The roller on the right is used to convey the aerogel gel body to the left to be dried in the dryer. On the left side of the roller on the left, a conveying group is symmetrically arranged up and down. Each conveying group is composed of conveying cylinders evenly arranged in the left-right direction. The roller on the left and the conveying cylinders are used to convey the aerogel felt to the left. The cutting unit 1 is arranged at the left end of the leftmost conveying cylinder and is used to cut the aerogel felt generated after drying. The re-flattening unit 2 is arranged at the left end of the cutting unit 1 and is used to re-flatten the cut aerogel felt. Two conveying rollers are symmetrically arranged up and down at the left end of the re-flattening unit 2. The conveying cylinders and the conveying rollers are both driven by an external stepping motor, and the rotation speeds of the conveying cylinders and the conveying rollers are the same.

[0046] Referring to Figure 2 , Figure 3 ,Figure 6 With Figure 8 , the cutting unit 1 includes a workbench 11. The workbench 11 is arranged on the left side of the leftmost conveying cylinder. A moving member 12 is arranged on the workbench 11. A cutting member 13 is arranged on the moving member 12. A flattening member 14 is arranged on the cutting member 13. A control member 15 is arranged on the flattening member 14. An auxiliary member 16 is arranged on the flattening member 14. The moving member 12 drives the cutting member 13 to move on the aerogel felt and perform cutting. The flattening member 14 performs two flattenings on the aerogel felt in the front-back direction and the left-right direction during the cutting process. The control member 15 controls the height of the flattening member 14, which is convenient for adjustment according to the thickness of the aerogel felt and is also convenient for replacing the tool on the cutting member 13. The auxiliary member 16 enhances the flattening effect; the re-flattening unit 2 includes a rectangular box 21. The rectangular box 21 is fixedly installed at the left end of the workbench 11. A material guiding driving member 22 is arranged in the rectangular box 21. A supporting member 23 is arranged on the material guiding driving member 22. A pressing member 24 is arranged at the upper end of the rectangular box 21. The pressing member 24 and the supporting member 23 cooperate to perform a re-flattening process on the cut aerogel felt. The material guiding driving member 22 guides the aerogel felt that has been re-flattened.

[0047] The aerogel gel body is sent to a drying rack through the roller on the right for drying to obtain an aerogel felt. The roller on the left cooperates with the conveying cylinder to convey the aerogel felt to the left until the leftmost end of the aerogel felt is flush with the left end of the workbench 11, and the aerogel felt stops moving. At this time, according to needs, the cutting member 13 is driven by the moving member 12 to move on the aerogel felt and perform cutting. During the cutting process, the flattening member 14 flattens the aerogel felt to be cut in the front-back direction and the left-right direction, so that it is subjected to two flattening forces during the cutting process. When the aerogel felt at this position is completely cut, the roller on the left cooperates with the conveying cylinder to continue conveying the aerogel felt to the left until the cut aerogel felt moves to the support member 23 in the rectangular box 21. At this time, according to needs, the cutting member 13 is driven by the moving member 12 to move on the aerogel felt and perform re-cutting. At the same time, the pressing member 24 moves downward, and with the cooperation of the support member 23, the cut aerogel felt block is flattened again. Then, the left end of the support member 23 is fixed by the material guiding driving member 22, and then the pressing member 24 moves upward, and the support member 23 inclines. With the cooperation of the material guiding driving member 22, the aerogel felt is smoothly discharged and collected. The remaining aerogel felt waste after cutting is conveyed to the left along with the conveying roller and can be wound and recycled by a winding drum arranged externally. Compared with the traditional method of winding and collecting the dried aerogel felt and then cutting it, the aerogel felt after cutting by the traditional method is extremely prone to arching. Subsequently, in order to better use it, the cut aerogel felt needs to be flattened, which affects the normal use of the aerogel felt. However, after the aerogel felt is dried, it is immediately flattened in two ways, then cut, and flattened again after cutting is completed, ensuring the quality of the cut aerogel felt finished product and avoiding the phenomenon of bending and arching of the aerogel felt due to winding.

[0048] Refer to Figure 2 , the moving member 12 includes a gantry bracket 121. Guide chutes one are symmetrically arranged before and after the workbench 11, and electric sliders one are slidably connected in the guide chutes one. The upper ends of the electric sliders one are jointly fixedly installed with a gantry bracket 121. A guide chute two is opened at the left end of the gantry bracket 121, and an electric slider two is slidably connected in the guide chute two.

[0049] Refer to Figure 6 , the cutting member 13 includes a rectangular plate 131. The left end of the electric slider two is fixedly installed with a rectangular plate 131. The left end of the rectangular plate 131 is fixedly installed with a positioning housing 132. A vibrating knife head 133 is fixedly installed in the middle of the positioning housing 132. Bent rods 134 are symmetrically fixedly installed at the front and rear of the right end of the positioning housing 132. A sliding block 135 is fixedly installed at the lower right end of the bent rod 134. A rectangular chute 136 is opened at the upper end of the gantry bracket 121, and the front and rear two sliding blocks 135 are jointly slidably connected with the rectangular chute 136 in the front-back direction.

[0050] Refer toFigure 4 , Figure 5 , Figure 6 With Figure 8 , the flattening member 14 includes a rectangular square column 141. Rectangular guide grooves are provided around the positioning housing 132. The rectangular square column 141 is slidably connected up and down in the rectangular guide grooves. Rectangular felt strip plates 142 are fixedly installed at the opposite ends of the rectangular square columns 141 on the front and rear sides. Rectangular felt blocks 143 are fixedly installed at the opposite ends of the rectangular square columns 141 on the left and right sides. Longitudinal section concave-shaped extension plates 144 are symmetrically fixedly installed at the front and rear of the left end of the left felt block 143. The front and rear two extension plates 144 are symmetrically arranged. A cross-shaped moving block 145 is slidably connected left and right between the two extension plates 144. A connecting spring 146 is fixedly installed between the right end of the moving block 145 and the left end of the left felt block 143.

[0051] Refer to Figure 5 , the control member 15 includes a positioning ring 151. The positioning ring 151 is fixedly installed at the upper ends of the rectangular square columns 141 together. A threaded rod 152 is rotatably connected to the positioning housing 132. The threaded rod 152 is in threaded connection with the positioning ring 151. A guide rod 153 that slidably penetrates the positioning ring 151 is fixedly installed at the upper end of the positioning housing 132.

[0052] Refer to Figure 8 , the auxiliary member 16 includes a rotating column one 161. Rounded corners are provided on the front and rear sides of the lower side of the felt strip plate 142. Rounded corners are provided at the left and right ends of the lower side of the right felt block 143 and the right end of the lower side of the left felt block 143. A plurality of rotating columns one 161 and rotating columns two 162 are rotatably connected to the lower ends of the felt strip plate 142 and the felt block 143. The central axis of the rotating column one 161 is perpendicular to the central axis of the rotating column two 162. The rotating column one 161 and the rotating column two 162 are arranged staggeredly; when the vibrating knife head 133 moves in the left - right direction and the front - rear direction, through the staggeredly arranged rotating column one 161 and rotating column two 162 with perpendicular directions, the felt strip plate 142 and the felt block 143 will both have rolling contact with the aerogel felt, reducing the frictional resistance received by the felt strip plate 142 and the felt block 143 during flattening.

[0053] Refer to Figure 6 With Figure 7 , the material guiding driving member 22 includes a close - fitting plate 221. The close - fitting plate 221 is fixedly installed at the bottom of the rectangular box 21. An electromagnetic plate 222 is fixedly installed at the left end of the close - fitting plate 221. A rectangular discharge port 223 is provided at the left end of the rectangular box 21 and directly above the electromagnetic plate 222.

[0054] Refer to Figure 6 With Figure 7, the support member 23 includes a fixing spring 231. The fixing spring 231 is uniformly and fixedly installed at the upper end of the attaching plate 221. The upper ends of the fixing springs 231 are commonly fixedly installed with an adjusting plate 232. A support plate 233 is slidably connected up and down in the middle of the rectangular box 21. In the initial state, the upper end surface of the support plate 233 is flush with the upper end surface of the rectangular box 21. A limiting groove 234 is provided at the lower end of the support plate 233. The right side of the adjusting plate 232 is hinged to the left side of the limiting groove 234. A contact plate 235 with magnetism is hinged to the left end of the support plate 233. The upper end of the contact plate 235 is set as an inclined surface. The maximum rotation angle between the contact plate 235 and the support plate 233 is the same as the inclination angle of the inclined surface of the contact plate 235.

[0055] Refer to Figure 6 , the pressing member 24 includes a right-angle bracket 241. The right-angle bracket 241 is fixedly installed at the upper rear end of the rectangular box 21. A distance control cylinder 242 is fixedly installed at the lower end of the horizontal section of the right-angle bracket 241. A pressing flat plate 243 is fixedly installed at the telescopic end of the distance control cylinder 242. Two abutting blocks 244 are symmetrically arranged in the front and rear at the upper end of the rectangular box 21 and on the left side of the support plate 233. The abutting blocks 244 are slidably connected to the rectangular box 21 in the front and rear. A bidirectional screw 245 is rotatably connected to the upper left end of the rectangular box 21. The front and rear sides of the bidirectional screw 245 are respectively threadedly connected to the corresponding abutting blocks 244.

[0056] The working principle of the present invention: Step 1: First, send the aerogel gel body into the drying rack through the roller on the right for drying to obtain an aerogel felt. The roller on the left cooperates with the conveying cylinder to convey the aerogel felt to the left until the leftmost end of the aerogel felt is flush with the left end of the workbench 11, and the aerogel felt stops moving.

[0057] Step 2: At this time, start the gantry to move on the aerogel felt as needed. When it moves to a suitable position, turn on the vibrating knife head 133 to cut the aerogel felt. During the entire cutting process, the gantry moves in the left and right directions, and the vibrating knife head 133 moves in the front and rear directions. During the cutting process, the aerogel felt to be cut is flattened in the front and rear directions and the left and right directions through the pressing felt strip plate 142 and the pressing felt block 143, so that it is subjected to two flattening forces during the cutting process.

[0058] Step 3: When the aerogel felt at this position is completely cut, the left roller cooperates with the conveying cylinder to continue conveying the aerogel felt to the left until the cut aerogel felt moves onto the support plate 233 in the rectangular box 21. At this time, according to the need, start the gantry and the vibrating knife head 133 to move on the aerogel felt and perform secondary cutting. At the same time, drive the pressing plate 243 to move downward through the distance control cylinder 242. With the cooperation of the support plate 233, the cut aerogel felt block is flattened again. Then, energize the electromagnetic plate 222 to make the electromagnetic plate 222 attract the magnetic contact plate 235. At this time, the distance control cylinder 242 drives the pressing plate 243 to move upward, and the upper end of the support plate 233 is no longer subjected to extrusion force. Under the restriction of the electromagnetic plate 222 and the contact plate 235, and the reaction force of the fixing spring 231, a force for upward movement is generated on the right side of the support plate 233. At this time, the adjusting plate 232 rotates downward to the horizontal state to ensure that the fixing spring 231 will not bend and deform. The support plate 233 rotates along the hinge joint with the contact plate 235 until the inclination angle of the support plate 233 is the same as that of the contact plate 235. At this time, the aerogel felt smoothly discharges from the discharge port 223 for collection. The remaining aerogel felt waste after cutting is conveyed to the left by the conveying roller and can be wound and recycled through the externally provided winding drum. After the electromagnetic plate 222 is powered off, the electromagnetic plate 222 is separated from the contact plate 235, and the support plate 233 returns to the state where its upper end surface is flush with the upper end surface of the rectangular box 21, so as to support the subsequently cut aerogel felt. Compared with the traditional method of winding and collecting the dried aerogel felt and then cutting it, the aerogel felt cut by the traditional method is extremely prone to arching. Subsequently, in order to better use it, it is necessary to flatten the cut aerogel felt, which affects the normal use of the aerogel felt. After the aerogel felt is dried, it is immediately flattened twice, then cut, and flattened again after cutting to ensure the quality of the cut aerogel felt finished product and avoid the phenomenon of bending and arching of the aerogel felt due to winding.

[0059] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "middle", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "end", "axial", "circumferential", etc. is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0060] In addition, the terms "first", "second", "No. 1", "No. 2", "one", and "two" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0061] In the description of the present invention, it should also be noted that unless otherwise clearly specified and defined, the terms "arranged", "connected", "installed", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection, a sliding connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0062] The embodiments of the specific implementation manners are all preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. A method for synthesizing and preparing an aerogel composite material, characterized in that , comprising the following steps: comprising the following steps: S1, raw material preparation: adding silicate, sol thickener, stabilizer and nano silicon dioxide into a reaction kettle according to a proportion, and stirring and mixing to obtain a uniform raw material slurry; S2. Sol preparation: heating the raw material slurry and utilizing the sol thickener to aggregate the colloidal particles to form a dense sol; S3, aerogelation: pouring the prepared sol into a molding mold, and extracting air by vacuum to volatilize the solvent in the sol colloid, so that the colloidal particles aggregate to form a gel structure; S4, molding: taking out the aerogel mold of the gel structure, cutting, punching and pressing, and processing the shape and size of the aerogel gel body; S5, drying: drying the formed aerogel gel to volatilize the residual solvent and water to generate aerogel felt; S6, finished product processing: the dried aerogel felt is cut and processed; The step S6 is completed in cooperation with a cutting device, wherein the cutting device comprises a dryer, two rollers respectively arranged on the left and right sides of the dryer, the roller on the right side is used to convey the aerogel gel body to the left so that it can be dried in the dryer, and the left side of the roller on the left side is symmetrically arranged with conveying groups, each conveying group is composed of conveying cylinders evenly arranged in the left and right directions, and the roller and conveying cylinder on the left side are used to convey the aerogel felt to the left, and the cutting unit (1) is arranged at the left end of the leftmost conveying cylinder, and is used to cut the aerogel felt generated after drying, and the re-flattening unit (2) is arranged at the left end of the cutting unit (1) and is used to re-flatten the cut aerogel felt, and the left end of the re-flattening unit (2) is provided with two conveying rollers symmetrically arranged in the upper and lower directions; The cutting unit (1) comprises a workbench (11), the workbench (11) is arranged on the left side of the leftmost conveying cylinder, a moving part (12) is arranged on the workbench (11), a cutting part (13) is arranged on the moving part (12), a flattening part (14) is arranged on the cutting part (13), a control part (15) is arranged on the flattening part (14), and an auxiliary part (16) is arranged on the flattening part (14); the moving part (12) drives the cutting part (13) to move on the aerogel felt and cut; the flattening part (14) flattens the aerogel felt in the front-to-back and left-to-right directions during the cutting process; the control part (15) controls the height of the flattening part (14) to facilitate adjustment according to the thickness of the aerogel felt and to facilitate replacement of the tool on the cutting part (13); the auxiliary part (16) increases the flattening effect; The re-flattening unit (2) comprises a rectangular box (21), the rectangular box (21) is fixedly mounted on the left end of the workbench (11), a material guide driving member (22) is arranged in the rectangular box (21), a support member (23) is arranged on the material guide driving member (22), a pressing member (24) is arranged on the upper end of the rectangular box (21), the pressing member (24) cooperates with the support member (23) to re-flatten the cut aerogel felt, and the material guide driving member (22) guides the aerogel felt that has been re-flattened.

2. The method for synthesizing and preparing an aerogel composite material according to claim 1, characterized in that: The moving part (12) comprises a gantry bracket (121), a guide slide groove 1 is symmetrically provided on the front and rear of the workbench (11), an electric slider 1 is slidably connected in the guide slide groove 1, the upper end of the electric slider 1 is fixedly mounted with the gantry bracket (121), and a guide slide groove 2 is provided at the left end of the gantry bracket (121), and an electric slider 2 is slidably connected in the guide slide groove 2.

3. The method for synthesizing and preparing an aerogel composite material according to claim 2, characterized in that: The cutting piece (13) comprises a rectangular plate (131), the rectangular plate (131) is fixedly installed at the left end of the electric slider, a positioning shell (132) is fixedly installed at the left end of the rectangular plate (131), a vibrating knife head (133) is fixedly installed in the middle of the positioning shell (132), a bending rod (134) is fixedly installed at the right end of the positioning shell (132) symmetrically, a sliding block (135) is fixedly installed at the lower right end of the bending rod (134), a rectangular sliding groove (136) is opened at the upper end of the gantry bracket (121), and the front and rear sliding blocks (135) are connected to the rectangular sliding groove (136) in a forward and backward sliding manner.

4. The method for synthesizing and preparing an aerogel composite material according to claim 3, characterized in that: The flattening member (14) comprises a rectangular column (141). A rectangular guide groove is formed around the positioning housing (132). A rectangular column (141) is slidably connected in the rectangular guide groove. Rectangular felt pressing strips (142) are fixedly installed at opposite ends of the rectangular columns (141) on both sides. Rectangular felt pressing blocks (143) are fixedly installed at opposite ends of the rectangular columns (141) on both sides. An extension plate (144) with a concave longitudinal section is fixedly installed at the left end of the left felt pressing block (143) symmetrically. The front and rear extension plates (144) are symmetrically arranged. A moving block (145) with a cross-shaped cross section is slidably connected between the two extension plates (144) to the left and right. A connecting spring (146) is fixedly installed between the right end of the moving block (145) and the left end of the left felt pressing block (143).

5. The method for synthesizing and preparing an aerogel composite material according to claim 4, characterized in that: The control member (15) comprises a positioning ring (151), the upper end of the rectangular column (141) is fixedly mounted with the positioning ring (151), a threaded rod (152) is rotatably connected to the positioning housing (132), the threaded rod (152) and the positioning ring (151) are threadedly connected, and a guide rod (153) is fixedly mounted on the upper end of the positioning housing (132) and slides through the positioning ring (151).

6. The method for synthesizing and preparing an aerogel composite material according to claim 4, characterized in that: The auxiliary component (16) comprises a rotating column one (161), the front and rear sides of the lower side of the felt pressing strip (142) are both provided with rounded corners, the left and right ends of the lower side of the right felt pressing block (143) and the right end of the lower side of the left felt pressing block (143) are both provided with rounded corners, the lower end of the felt pressing strip (142) and the lower end of the felt pressing block (143) are both rotatably connected with a plurality of rotating columns one (161) and rotating columns two (162), the central axis of the rotating column one (161) and the central axis of the rotating column two (162) are perpendicular to each other, and the rotating columns one (161) and the rotating columns two (162) are arranged alternately.

7. The method for synthesizing and preparing an aerogel composite material according to claim 1, characterized in that: The material guiding driving member (22) comprises a close contact plate (221), the close contact plate (221) is fixedly mounted on the bottom of the rectangular box (21), an electromagnetic plate (222) is fixedly mounted on the left end of the close contact plate (221), and a rectangular material discharge port (223) is provided at the left end of the rectangular box (21) and directly above the electromagnetic plate (222).

8. The method for synthesizing and preparing an aerogel composite material according to claim 7, characterized in that: The support member (23) comprises a fixing spring (231), the fixing spring (231) is evenly fixedly installed on the upper end of the close-fitting plate (221), the upper end of the fixing spring (231) is jointly fixedly installed with an adjustment plate (232), the middle part of the rectangular box (21) is slidably connected with a support plate (233) up and down, in an initial state, the upper end surface of the support plate (233) is flush with the upper end surface of the rectangular box (21), a limiting groove (234) is provided at the lower end of the support plate (233), the right side of the adjustment plate (232) is hinged to the left side of the limiting groove (234), and a contact plate (235) with magnetic attraction is hinged to the left end of the support plate (233), the upper end of the contact plate (235) is arranged as an inclined surface, and the maximum angle of rotation between the contact plate (235) and the support plate (233) is the same as the inclination angle of the inclined surface of the contact plate (235).

9. The method for synthesizing and preparing an aerogel composite material according to claim 8, characterized in that: The pressing member (24) comprises a right-angle bracket (241), the right-angle bracket (241) is fixedly installed on the upper rear end of the rectangular box (21), a distance control cylinder (242) is fixedly installed on the lower horizontal end of the right-angle bracket (241), a pressure plate (243) is fixedly installed on the telescopic end of the distance control cylinder (242), a resisting block (244) is symmetrically arranged at the upper end of the rectangular box (21) and located on the left side of the support plate (233), the resisting block (244) is slidably connected to the rectangular box (21) in a front-to-back manner, a bidirectional screw rod (245) is rotatably connected to the upper left end of the rectangular box (21), and the front and rear sides of the bidirectional screw rod (245) are respectively threadedly connected to the corresponding resisting block (244).

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