Composite heat insulation felt processing equipment and processing method thereof

Abstract

This invention discloses a composite thermal insulation felt processing equipment and method. The equipment includes a heating roller inside the machine body for heating the insulation felt; a two-stage pressure roller assembly with a light pressure roller and a heavy pressure roller arranged sequentially along the material travel direction; a thermal insulation and pressure-maintaining assembly located downstream of the two-stage pressure roller assembly; and a detection assembly including a pre-detection module and a curling detection module. A control unit is connected to the detection assembly. This invention solves the problems of bubble generation, composite felt curling deformation, and structural instability during aerogel pressing through the synergistic effect of the two-stage pressure roller assembly and the thermal insulation and pressure-maintaining assembly. The light and heavy pressure rollers are used to vent air and bond the heated and softened insulation felt and substrate. The thermal insulation and pressure-maintaining assembly reduces the difference in thermal expansion coefficients between the aluminum foil and the aerogel, reducing the tension that causes the aerogel to curl when the aluminum foil shrinks, thus preventing curling deformation and meeting user needs.

Description

Technical Field

[0001] This invention relates to the technical field of composite thermal insulation felt processing equipment, and particularly to a composite thermal insulation felt processing equipment and its processing method. Background Technology

[0002] The core function of the processing equipment for composite thermal insulation felt is to firmly bond aerogel and substrate by heating the aerogel at high temperature and then pressing them together to form a composite thermal insulation felt that combines the thermal insulation properties of aerogel and the protective properties of the substrate.

[0003] Aerogels are filled with pores. During the pressing process of existing processing equipment, the instantaneous pressure during pressing causes the pores on the surface of the aerogel to be rapidly compressed and closed, thus trapping the air inside the aerogel between the aerogel body and the aluminum foil substrate, forming multiple flat microbubbles. At the same time, the coefficient of thermal expansion of the aluminum foil is much higher than that of the aerogel. This means that during the rapid cooling process after the composite felt is pressed, the aluminum foil will shrink at a faster rate, generating a pulling force that causes the aerogel to shrink synchronously, ultimately causing the composite felt to curl and deform as a whole. This curling deformation will generate local peeling stress at the location of the flat microbubbles. This stress will further enlarge the bubbles. As the bubbles enlarge, the effective bonding area between the aluminum foil and the aerogel will decrease, resulting in uneven distribution of shrinkage force inside the composite felt, ultimately exacerbating the irregularity and severity of the curling deformation, which has limitations.

[0004] Enlarged air bubbles and reduced bonding area can lead to decreased structural stability of the composite felt. Over long-term use, problems such as delamination and detachment of the aluminum foil and aerogel may occur, reducing the reliability of the product and posing limitations. Summary of the Invention

[0005] The purpose of this invention is to provide a composite thermal insulation felt processing equipment and processing method to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a composite thermal insulation felt processing equipment and processing method, comprising a machine body, a two-section pressure roller assembly, a thermal insulation and pressure holding assembly, a detection assembly, and a control unit; The machine body is equipped with a heating roller for heating the insulation felt; The processing unit is located inside the machine body and includes: The two-section pressure roller assembly is provided with a light pressure roller and a heavy pressure roller in sequence along the material travel direction, which are used to degas and bond the heated and softened insulation felt and substrate. The heat insulation and pressure holding assembly is located downstream of the two-section pressure roller assembly; the heat insulation and pressure holding assembly is composed of multiple sets of integrated rollers arranged in an array along the material travel direction, and each roller body is provided with a heating element; The detection component includes a pre-detection module and a curling detection module. The pre-detection module is used to obtain the surface temperature and thickness of the thermal insulation felt after pressing. The curling detection module is used to obtain the curling deformation distribution in the width direction of the thermal insulation felt and the air bubbles and delamination defects inside the composite felt. The control unit is connected to the detection component and is used to receive detection data; The control unit adjusts the output power of the heating roller, the applied pressure of the light and heavy pressure rollers based on the detection data of the detection component, and dynamically adjusts the temperature and pressure distribution of the heat preservation and pressure holding component.

[0007] Preferably, the two-section pressure roller assembly further includes a mounting frame and a servo cylinder: The mounting bracket is disposed on the outer surface of the light pressure roller and the heavy pressure roller, and the mounting bracket is rotatably connected to the pressure roller; The servo cylinder is fixedly installed inside the machine body. The output shaft of the servo cylinder is fixedly connected to the mounting bracket. The servo cylinder is used to drive the mounting bracket to move vertically. A pressure sensor is provided at the connection between the servo cylinder and the mounting bracket. The pressure sensor is electrically connected to the control unit.

[0008] Preferably, the heat insulation and pressure holding assembly includes a positioning frame and a push cylinder: The positioning frame is sleeved on the outer surface of the integrated roller, and the positioning frame is rotatably connected to the integrated roller; The push cylinder is fixedly installed inside the machine body. The output shaft of the push cylinder is fixedly connected to the positioning frame. The push cylinder is used to drive the positioning frame to move vertically. A pressure sensor is provided at the connection between the push cylinder and the positioning frame. The pressure sensor is electrically connected to the control unit.

[0009] Preferably, the heat insulation and pressure maintaining assembly further includes a slider, a bellows-type isolation cover, a water inlet pipe, and a water outlet pipe: The slider is fixedly installed on both sides of the positioning frame, and the machine body has a slide groove adapted to the slider, and the slider is slidably connected inside the slide groove; The bellows-style isolation cover is fixedly installed at both ends of the slider, and the other end of the bellows-style isolation cover is fixedly connected to the slide groove; The water inlet pipe is located on one side of the positioning frame; The water outlet pipe is located on the other side of the positioning frame.

[0010] Preferably, the heat insulation and pressure maintaining assembly further includes a spiral guide plate, a water inlet groove, and a water guide block; The spiral guide plate is fixedly installed inside the integrated roller, and the water inlet pipe and water outlet pipe are respectively connected to the integrated roller; The water inlet groove is located on one side of the integrated roller; The water guide block is fixedly installed inside the water inlet tank. The water guide block is generally in the shape of a sideways cone. The water guide block is used to guide the medium to the water outlet pipe. A one-way valve is provided between the water guide block and the water outlet pipe.

[0011] Preferably, the front-end detection module includes a mounting housing, an infrared thermal imager, and an infrared thermometer. The mounting shell is disposed between the heating roller and the light pressure roller; Multiple sets of infrared thermal imagers are fixedly installed inside the mounting housing. The infrared thermal imagers are equidistantly arranged and are used to acquire the surface temperature of the insulation felt in real time. The infrared thermometer is positioned between the pressure roller and the integrated roller, and is used to detect the temperature distribution when the insulation felt enters the insulation and pressure-maintaining assembly.

[0012] Preferably, the front-end detection module further includes a protective shell, a drive motor, a threaded rod, a laser thickness gauge, and a bellows-style protective cover. The two sets of protective shells are respectively disposed between the light pressure roller and the heavy pressure roller, and between the heavy pressure roller and the integrated roller; The drive motor is fixedly mounted on one side of the protective housing; The threaded rod is rotatably connected inside the protective shell, and the output shaft of the drive motor is fixedly connected to the threaded rod. The laser thickness gauge is horizontally slidably connected inside the protective shell, and the laser thickness gauge is threadedly engaged with the threaded rod. The bellows-style protective cover is fixedly installed on both sides of the laser thickness gauge, and the bellows-style protective cover is fixedly connected to the protective shell.

[0013] Preferably, the curling detection module includes a crossbeam, a laser displacement sensor, a support plate, and an ultrasonic probe array; The crossbeam is fixedly installed on one side of the integrated roller; The laser displacement sensor is fixedly installed on one side of the crossbeam; The ultrasonic probe array is fixedly installed on the other side of the crossbeam; The machine body is rotatably connected to a conveyor belt, the conveyor belt body is made of transparent material, the support plate is fixedly installed inside the conveyor belt, and a receiver is set inside the support plate.

[0014] Preferably, a feeding assembly is provided on one side of the machine body, and a winding assembly is provided on the other side of the machine body.

[0015] Preferably, it includes the following steps: S1. Pre-detection: The pre-detection module acquires the surface temperature distribution and the thickness distribution after pressing of the thermal insulation felt, and transmits them to the control unit. S2. Pre-process adjustment: After receiving the surface temperature distribution, the control unit adjusts the output power of the heating roller; the control unit adjusts the applied pressure of the light pressure roller according to the thickness distribution after light pressing; the control unit adjusts the applied pressure of the heavy pressure roller 212 according to the thickness distribution after heavy pressing. S3. Thermal insulation and pressure treatment: The composite felt, after being processed by the two-stage pressure roller assembly, enters the thermal insulation and pressure treatment assembly, where multiple sets of integrated rollers arranged in an array along the material travel direction are used for temperature and pressure control. S4. Post-detection and correction: The curling detection module obtains the curling deformation distribution in the width direction of the composite felt, as well as the air bubbles and delamination defects inside the composite felt, and sends them to the control unit. S5. Post-process adjustment: The control unit determines whether the curling deformation distribution exceeds the preset curling threshold. If the threshold is not exceeded, maintain the current temperature and pressure distribution of the thermal insulation and pressure-holding components; If the threshold is exceeded, the control unit dynamically adjusts the temperature and pressure distribution of the heat insulation and pressure holding components based on the distribution of curling deformation and the location of bubbles and delamination defects, and retrospectively queries the pre-detection data at the corresponding location in step S1 to determine the root cause of the curling abnormality. S6. Iterative optimization: Repeat steps S1 to S5, and store the pre-test data, post-test data and adjustment parameters of each batch into the database for use in setting initial parameters for subsequent production.

[0016] The technical effects and advantages of this invention are as follows: 1. This invention solves the problems of bubble generation, composite felt curling and deformation, and structural instability during aerogel pressing by using a two-stage pressure roller assembly and a heat insulation and pressure-maintaining assembly. Specifically, the light pressure roller first lightly presses the aerogel and the substrate to expel air from the aerogel and avoid the formation of flat microbubbles. The heavy pressure roller then performs a second pressing to ensure a firm bond between the two. The heat insulation and pressure-maintaining assembly reduces the difference in thermal expansion coefficients between the aluminum foil and the aerogel, reduces the tension that causes the aerogel to curl when the aluminum foil shrinks, and avoids curling and deformation, thus meeting the user's needs.

[0017] 2. By controlling the pressure and temperature during the pressing process, this invention reduces the generation of air bubbles while ensuring the adhesion strength between the aerogel and the aluminum foil substrate, thus avoiding delamination and detachment problems that may occur during long-term use of the thermal insulation felt. The continuous temperature and pressure control of the thermal insulation and pressure-holding components can make the adhesion between the aerogel and the substrate more complete and firm.

[0018] 3. This invention achieves real-time monitoring and dynamic adjustment of the processing process through the linkage of the detection component and the control unit. At the same time, the structural design of the two-section pressure roller and the heat preservation and pressure holding component can adapt to the processing requirements of aerogel and substrate of different specifications, thus meeting the needs of users. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the thermal insulation and pressure-maintaining component of the present invention; Figure 3 This is a schematic diagram of the internal structure of the device of the present invention; Figure 4 This is a schematic diagram of the mounting shell of the present invention; Figure 5 This is a schematic diagram of the interior of the protective shell of the present invention; Figure 6 This is a schematic diagram of the support plate of the present invention; Figure 7 This is a schematic diagram of the interior of the integrated roller of the present invention; Figure 8 For the present invention Figure 7 Enlarged diagram of section A.

[0020] In the diagram: 1. Machine body; 2. Processing unit; 21. Two-section pressure roller assembly; 211. Light pressure roller; 212. Heavy pressure roller; 213. Mounting frame; 214. Servo cylinder; 22. Heat preservation and pressure holding assembly; 221. Integrated roller; 222. Positioning frame; 223. Push cylinder; 224. Slider; 225. Bellows-style isolation cover; 226. Water inlet pipe; 227. Spiral guide plate; 228. Water inlet trough; 229. Water guide block; 230. Water outlet pipe; 23. Detection assembly; 231. Mounting shell; 232. Infrared thermal imager; 233. Protective shell; 234. Drive motor; 235. Threaded rod; 236. Laser thickness gauge; 237. Bellows-style protective cover; 238. Crossbeam; 239. Laser displacement sensor; 240. Support plate; 241. Ultrasonic probe array; 3. Feeding assembly; 4. Roll assembly. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] This invention provides, for example Figures 1 to 2The composite thermal insulation felt processing equipment and processing method shown include a machine body 1, a two-section pressure roller assembly 21, a thermal insulation and pressure holding assembly 22, a detection assembly 23, and a control unit; The machine body 1 is equipped with a heating roller for heating the insulation felt; Processing unit 2 is located inside machine body 1 and includes: The two-section pressure roller assembly 21 is provided with a light pressure roller 211 and a heavy pressure roller 212 in sequence along the material travel direction, which are used to degas and bond the heated and softened insulation felt and the substrate. The heat insulation and pressure holding assembly 22 is located downstream of the two-section pressure roller assembly 21; the heat insulation and pressure holding assembly 22 is composed of multiple sets of integrated rollers 221 arranged in an array along the material travel direction, and each roller body is provided with a heating element; The detection component 23 includes a pre-detection module and a curling detection module. The pre-detection module is used to obtain the surface temperature and thickness of the insulation felt after pressing. The curling detection module is used to obtain the curling deformation distribution in the width direction of the insulation felt and the air bubbles and delamination defects inside the composite felt. The control unit is connected to the detection component 23 for receiving detection data; The control unit adjusts the output power of the heating roller, the applied pressure of the light pressure roller 211 and the heavy pressure roller 212 based on the detection data of the detection component 23, and dynamically adjusts the temperature distribution and pressure distribution of the heat preservation and pressure holding component 22.

[0023] Example 1: In this example, the device first feeds aerogel insulation felt and aluminum foil substrate into the machine body 1 through the feeding assembly 3. After the aerogel is preheated and softened by the heating roller, it is fed into the two-stage pressure roller assembly 21. The heating roller is electrically heated and can adjust its output power according to the instructions of the control unit to control its own temperature. It passes through the light pressure roller 211 for venting and the heavy pressure roller 212 for bonding in sequence to complete the initial composite of aerogel and substrate. Then the composite felt enters the heat preservation and pressure holding assembly 22, and is continuously temperature and pressure controlled by multiple sets of integrated rollers 221 to slow down the cooling rate and reduce curling deformation. The temperature of the multiple sets of integrated rollers 221 gradually decreases with the material feeding direction. The detection assembly 23 acquires the temperature, thickness, curling deformation amount and internal defect data in real time during the processing and transmits them to the control unit, which dynamically adjusts the working parameters of each component. Finally, the qualified composite heat insulation felt is wound up by the winding assembly 4 to complete the entire processing process.

[0024] This invention provides, for example Figures 3 to 8 The composite thermal insulation felt processing equipment and processing method shown include a machine body 1, a two-section pressure roller assembly 21, a thermal insulation and pressure holding assembly 22, a detection assembly 23, and a control unit; The machine body 1 is equipped with a heating roller for heating the insulation felt; Processing unit 2 is located inside machine body 1 and includes: The two-section pressure roller assembly 21 is provided with a light pressure roller 211 and a heavy pressure roller 212 in sequence along the material travel direction. It is used to vent and bond the heat-softened insulation felt and the substrate. The surface hardness of the light pressure roller 211 is lower than that of the heavy pressure roller 212, and the applied pressure of the light pressure roller 211 is less than that of the heavy pressure roller 212. The heat insulation and pressure holding assembly 22 is located downstream of the two-section pressure roller assembly 21; the heat insulation and pressure holding assembly 22 is composed of multiple sets of integrated rollers 221 arranged in an array along the material travel direction, and each roller body is provided with a heating element; The detection component 23 includes a pre-detection module and a curling detection module. The pre-detection module is used to obtain the surface temperature and thickness of the insulation felt after pressing. The curling detection module is used to obtain the curling deformation distribution in the width direction of the insulation felt and the air bubbles and delamination defects inside the composite felt. The control unit is connected to the detection component 23 for receiving detection data; The control unit adjusts the output power of the heating roller, the applied pressure of the light pressure roller 211 and the heavy pressure roller 212 based on the detection data of the detection component 23, and dynamically adjusts the temperature distribution and pressure distribution of the heat preservation and pressure holding component 22.

[0025] The two-stage pressure roller assembly 21 also includes a mounting bracket 213 and a servo cylinder 214. Mounting bracket 213 is disposed on the outer surface of light pressure roller 211 and heavy pressure roller 212, and mounting bracket 213 is rotatably connected to pressure roller; Servo cylinder 214 is fixedly installed inside the body 1. The output shaft of servo cylinder 214 is fixedly connected to mounting bracket 213. Servo cylinder 214 is used to drive mounting bracket 213 to move vertically. A pressure sensor is provided at the connection between servo cylinder 214 and mounting bracket 213. The pressure sensor is electrically connected to the control unit.

[0026] The thermal insulation and pressure holding assembly 22 includes a positioning frame 222 and a push cylinder 223: The positioning frame 222 is sleeved on the outer surface of the integral roller 221, and the positioning frame 222 is rotatably connected to the integral roller 221; The push cylinder 223 is fixedly installed inside the machine body 1. The output shaft of the push cylinder 223 is fixedly connected to the positioning frame 222. The push cylinder 223 is used to drive the positioning frame 222 to move vertically. A pressure sensor is provided at the connection between the push cylinder 223 and the positioning frame 222. The pressure sensor is electrically connected to the control unit.

[0027] The thermal insulation and pressure-maintaining assembly 22 also includes a slider 224, a bellows-style isolation cover 225, a water inlet pipe 226, and a water outlet pipe 230. The slider 224 is fixedly installed on both sides of the positioning frame 222. The machine body 1 has a sliding groove that matches the slider 224, and the slider 224 is slidably connected inside the sliding groove. The accordion-style isolation cover 225 is fixedly installed at both ends of the slider 224, and the other end of the accordion-style isolation cover 225 is fixedly connected to the slide groove; The water inlet pipe 226 is located on one side of the positioning frame 222; The outlet pipe 230 is located on the other side of the positioning frame 222. The inlet pipe 226 is used to transport the medium into the integrated roller 221, and the outlet pipe 230 is used to discharge the medium. The ends of the inlet pipe 226 and the outlet pipe 230 are equipped with solenoid valves. The spiral guide plate 227 is equipped with a semiconductor cooling chip. When current passes through a closed circuit composed of two different metals or semiconductors, heat absorption or heat release will be generated at the joint, thereby achieving cooling and heating of the water.

[0028] The thermal insulation and pressure-maintaining assembly 22 also includes a spiral guide plate 227, a water inlet trough 228, and a water guide block 229; The spiral guide plate 227 is fixedly installed inside the integrated roller 221. The water inlet pipe 226 and the water outlet pipe 230 are respectively connected to the integrated roller 221. The spiral guide plate 227 can guide the medium to flow evenly inside the integrated roller 221. The water inlet trough 228 is located on one side of the integrated roller 221; The water guide block 229 is fixedly installed inside the water inlet tank 228. The water guide block 229 is generally in the shape of a side-lying cone. The water guide block 229 is used to guide the medium to the water outlet pipe 230. A one-way valve is provided between the water guide block 229 and the water outlet pipe 230.

[0029] The front-end detection module includes a mounting housing 231, an infrared thermal imager 232, and an infrared thermometer. The mounting housing 231 is disposed between the heating roller and the light pressure roller 211; Multiple infrared thermal imagers 232 are fixedly installed inside the mounting housing 231. The infrared thermal imagers 232 are set at equal intervals and are used to acquire the surface temperature of the insulation felt in real time. An infrared thermometer is installed between the heavy-duty roller 212 and the integrated roller 221. The infrared thermometer is used to detect the temperature distribution when the insulation felt enters the insulation and pressure-maintaining assembly 22.

[0030] The front-end detection module also includes a protective shell 233, a drive motor 234, a threaded rod 235, a laser thickness gauge 236, and a bellows-style protective cover 237. Two sets of protective shells 233 are respectively disposed between the light pressure roller 211 and the heavy pressure roller 212, and between the heavy pressure roller 212 and the integrated roller 221; The drive motor 234 is fixedly mounted on one side of the protective housing 233; The threaded rod 235 is rotatably connected inside the protective shell 233, and the output shaft of the drive motor 234 is fixedly connected to the threaded rod 235. The laser thickness gauge 236 is horizontally slidably connected inside the protective shell 233, and the laser thickness gauge 236 is threadedly engaged with the threaded rod 235. The bellows-style protective cover 237 is fixedly installed on both sides of the laser thickness gauge 236, and the bellows-style protective cover 237 is fixedly connected to the protective shell 233.

[0031] The curling detection module includes a crossbeam 238, a laser displacement sensor 239, a support plate 240, and an ultrasonic probe array 241; The crossbeam 238 is fixedly installed on one side of the integrated roller 221; The laser displacement sensor 239 is fixedly installed on one side of the crossbeam 238; The ultrasonic probe array 241 is fixedly installed on the other side of the crossbeam 238; The machine body 1 is internally connected to a rotating conveyor belt. The conveyor belt body is made of transparent material and Teflon. A support plate 240 is fixedly installed inside the conveyor belt. A receiver is installed inside the support plate 240. Laser displacement sensors 239 are equidistantly arranged along the crossbeam 238. They can detect the distance changes of each point in the width direction of the composite felt in real time, thereby obtaining the distribution of curling deformation and determining whether there is any abnormal curling of the composite felt. An ultrasonic probe array 241 is fixedly installed on the other side of the crossbeam 238. It is used to detect air bubbles and delamination defects inside the composite felt. The ultrasonic probe array 241 can emit ultrasonic waves. After the ultrasonic waves penetrate the composite felt, they are received by the receiver. The size, position and delamination of the air bubbles are determined based on the reflected ultrasonic waves.

[0032] A feeding assembly 3 is provided on one side of the machine body 1, and a winding assembly 4 is provided on the other side of the machine body 1.

[0033] Example 2: In this example, the control unit of the present invention adopts a PLC control cabinet, which has strong logic operation, data processing and multi-device linkage control capabilities. The control unit integrates a database, which can store the pre-test data, post-test data and adjustment parameters of each batch for the initial parameter setting of subsequent production.

[0034] The reason why the light pressure roller 211 can achieve air exhaust is that it applies less pressure than the heavy pressure roller 212 and has a lower surface hardness than the heavy pressure roller 212. It can slowly squeeze the aerogel without compressing the pores on the surface of the aerogel, and gradually expel the internal air, thus avoiding the formation of air bubbles when the air is sealed during subsequent heavy pressure. The heavy pressure roller 212 achieves a firm bond between the aerogel and the substrate through greater pressure. The temperature control principle of the integrated roller 221 is as follows: The machine body 1 is equipped with a water pump and a medium storage tank. The water pump injects the medium into the integrated roller 221. The solenoid valve at the end of the water outlet pipe 230 is closed, so that the medium fills the integrated roller 221. Then the solenoid valve inside the water inlet pipe 226 is closed. The control unit controls the semiconductor cooling chip to heat up and cool down the medium, thereby controlling the overall temperature of the integrated roller 221 and realizing temperature control.

[0035] This invention provides, for example Figure 1 The composite thermal insulation felt processing equipment and processing method shown include a machine body 1, a two-section pressure roller assembly 21, a thermal insulation and pressure holding assembly 22, a detection assembly 23, and a control unit; The machine body 1 is equipped with a heating roller for heating the insulation felt; Processing unit 2 is located inside machine body 1 and includes: The two-section pressure roller assembly 21 is provided with a light pressure roller 211 and a heavy pressure roller 212 in sequence along the material travel direction, which are used to degas and bond the heated and softened insulation felt and the substrate. The heat insulation and pressure holding assembly 22 is located downstream of the two-section pressure roller assembly 21; the heat insulation and pressure holding assembly 22 is composed of multiple sets of integrated rollers 221 arranged in an array along the material travel direction, and each roller body is provided with a heating element; The detection component 23 includes a pre-detection module and a curling detection module. The pre-detection module is used to obtain the surface temperature and thickness of the insulation felt after pressing. The curling detection module is used to obtain the curling deformation distribution in the width direction of the insulation felt and the air bubbles and delamination defects inside the composite felt. The control unit is connected to the detection component 23 for receiving detection data; The control unit adjusts the output power of the heating roller, the applied pressure of the light pressure roller 211 and the heavy pressure roller 212 based on the detection data of the detection component 23, and dynamically adjusts the temperature distribution and pressure distribution of the heat preservation and pressure holding component 22.

[0036] Includes the following steps: S1. Pre-detection: The pre-detection module acquires the surface temperature distribution and the thickness distribution after pressing of the thermal insulation felt, and transmits them to the control unit. S2. Pre-process adjustment: After receiving the surface temperature distribution, the control unit adjusts the output power of the heating roller; the control unit adjusts the applied pressure of the light pressure roller 211 according to the thickness distribution after light pressing; the control unit adjusts the applied pressure of the heavy pressure roller 212 according to the thickness distribution after heavy pressing. S3. Thermal insulation and pressure treatment: The composite felt after being processed by the two-stage pressure roller assembly 21 enters the thermal insulation and pressure treatment assembly 22, where multiple sets of integrated rollers 221 arranged in an array along the material travel direction are used for temperature and pressure control treatment. S4. Post-detection and correction: The curling detection module obtains the curling deformation distribution in the width direction of the composite felt, as well as the air bubbles and delamination defects inside the composite felt, and sends them to the control unit. S5. Post-process adjustment: The control unit determines whether the curling deformation distribution exceeds the preset curling threshold. If the threshold is not exceeded, maintain the current temperature and pressure distribution of the thermal insulation and pressure-maintaining component 22; If the threshold is exceeded, the control unit dynamically adjusts the temperature and pressure distribution of the heat insulation and pressure holding component 22 according to the distribution of curling deformation and the location of bubbles and delamination defects, and retrospectively queries the pre-detection data at the corresponding location in step S1 to determine the root cause of the curling abnormality. S6. Iterative optimization: Repeat steps S1 to S5, and store the pre-test data, post-test data and adjustment parameters of each batch into the database for use in setting initial parameters for subsequent production.

[0037] Example 3: In this example, the method control flow of this application is as follows: First, the surface temperature distribution of the aerogel felt before the light pressure roller 211 is detected. A temperature threshold is set here. Once the temperature deviates from the threshold, the temperature of the heating roller is dynamically adjusted. The aerogel felt and the substrate enter the light pressure roller 211 and are lightly pressurized to expel air. Then, the first thickness distribution of the composite felt after light pressing is detected. If the first thickness reduction rate exceeds the preset threshold, it indicates that the aerogel has been crushed, and the pressure of the light pressure roller 211 is reduced. If the first thickness reduction rate is lower than the preset threshold, it indicates that the air is not sufficiently expelled, and the pressure of the light pressure roller 211 is increased. Then, the composite felt enters the heavy pressure roller 212 and is heavily pressed and bonded with a second pressure. The second thickness distribution of the composite felt after heavy pressing is detected. If the second thickness fluctuation coefficient exceeds the preset threshold, it indicates that the bonding is uneven, and the pressure of the heavy pressure roller 212 or the parallelism of the roller surface is adjusted. The composite felt enters the heat-insulating and pressure-maintaining assembly 22, which consists of an array of multiple integrated rollers 221. An infrared thermometer detects the inlet temperature distribution of the composite felt upon entering the heat-insulating and pressure-maintaining assembly. Based on this inlet temperature distribution, the initial temperature and pressure distribution of the heat-insulating and pressure-maintaining assembly 22 are pre-set. It is important to note that the temperature of the integrated rollers 221 gradually decreases following the material conveying direction; only in this way can the stress on the composite felt be gradually reduced. After the composite felt enters the heat-insulating and pressure-maintaining assembly 22, the control unit, based on the pre-detected temperature data, adjusts the temperature and pressure of the integrated rollers 221 to maintain a stable heat-insulating and pressure-maintaining state. In the later stages of processing, the curling detection module uses a laser position... The displacement sensor 239 detects the distribution of curling deformation in the width direction of the composite felt, and the ultrasonic probe array 241 detects air bubbles and delamination defects inside the composite felt, transmitting the data to the control unit. Based on the subsequent detection data, the control unit determines whether the curling deformation exceeds a preset threshold. If it does, it dynamically adjusts the temperature and pressure distribution of the heat preservation and pressure holding components 22, while simultaneously tracing back the previous detection data to find the root cause of the abnormality and specifically adjusting the power of the heating roller, the pressure of the light pressure roller 211, and the pressure of the heavy pressure roller 212. Finally, through iterative optimization, the previous detection data, subsequent detection data, and adjustment parameters for each batch are stored in the database to provide initial parameter support for subsequent production.

[0038] After acquiring the data on the distribution of curling deformation in the width direction of the composite felt via the laser displacement sensor 239, the control unit adjusts the relevant components according to the following steps: First, determine whether the amount of curling deformation exceeds the preset threshold. If it does not exceed the threshold, maintain the current temperature and pressure distribution of the thermal insulation and pressure-maintaining component 22. If the threshold is exceeded, the control unit dynamically adjusts the temperature and pressure of the integrated roller 221 of the heat preservation and pressure holding component 22 according to the specific location of the curling deformation distribution. At the same time, it finely adjusts the output pressure of the push cylinder 223 to slow down the cooling rate of the composite felt in that area, balance the thermal shrinkage difference between the aluminum foil and the aerogel, and alleviate the curling. The corresponding location detection data obtained by the infrared thermal imager 232 and the laser thickness gauge 236 are used to determine the root cause of the curling abnormality, such as uneven front temperature or abnormal pressure of the light pressure roller 211 or the heavy pressure roller 212. Targeted adjustments are made: if the problem is due to uneven front temperature, the output power of the heating roller is adjusted; if the problem is due to abnormal pressing pressure, the applied pressure of the light pressure roller 211 or the heavy pressure roller 212 is adjusted by the servo cylinder 214 to prevent curling from happening again.

[0039] When air bubbles and delamination defects are detected inside the composite felt by the ultrasonic probe array 241, the following steps should be taken to resolve them: The control unit locates the corresponding processing step based on data such as the defect location, bubble size, and degree of layering transmitted by the ultrasonic probe array 241. If the defect is caused by insufficient pressing of the two-stage pressure roller assembly 21, adjust the applied pressure of the light pressure roller 211 to increase the light pressure venting force and ensure that the air inside the aerogel is fully discharged to avoid the generation of bubbles; at the same time, fine-tune the applied pressure of the heavy pressure roller 212 to enhance the adhesion strength between the aerogel and the aluminum foil substrate. If the defect is caused by improper temperature and pressure control of the heat preservation and pressure holding component 22, adjust the temperature and pressure of the integrated roller 221, extend the heat preservation and pressure holding time of the integrated roller 221, promote the full adhesion of aerogel to the substrate, squeeze out micro bubbles, repair slight delamination, and avoid the recurrence of the same defect.

[0040] Finally, it should be noted that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A composite thermal insulation felt processing equipment, characterized in that, include: The machine body (1) is equipped with a heating roller for heating the heat insulation felt inside; Processing unit (2), which is located inside the machine body (1), includes: A two-section pressure roller assembly (21) is provided with a light pressure roller (211) and a heavy pressure roller (212) in sequence along the material travel direction, which are used to vent and bond the heated and softened insulation felt and the substrate. The heat insulation and pressure holding assembly (22) is located downstream of the two-section pressure roller assembly (21); the heat insulation and pressure holding assembly (22) is composed of multiple sets of integrated rollers (221) arranged in an array along the material travel direction, and each roller body is provided with a heating element; The detection component (23) includes a pre-detection module and a curling detection module. The pre-detection module is used to obtain the surface temperature and thickness of the insulation felt after pressing. The curling detection module is used to obtain the curling deformation distribution in the width direction of the insulation felt and the bubbles and delamination defects inside the composite felt. A control unit, which is controlled to the detection component (23), is used to receive detection data; The control unit adjusts the output power of the heating roller, the applied pressure of the light pressure roller (211) and the heavy pressure roller (212) according to the detection data of the detection component (23), and dynamically adjusts the temperature distribution and pressure distribution of the heat preservation and pressure holding component (22).

2. The composite thermal insulation felt processing equipment according to claim 1, characterized in that, The two-section pressure roller assembly (21) also includes a mounting bracket (213) and a servo cylinder (214): Mounting bracket (213) is disposed on the outer surface of light pressure roller (211) and heavy pressure roller (212), and the mounting bracket (213) is rotatably connected to the pressure roller; A servo cylinder (214) is fixedly installed inside the body (1). The output shaft of the servo cylinder (214) is fixedly connected to the mounting bracket (213). The servo cylinder (214) is used to drive the mounting bracket (213) to move vertically. A pressure sensor is provided at the connection between the servo cylinder (214) and the mounting bracket (213). The pressure sensor is electrically connected to the control unit.

3. The composite thermal insulation felt processing equipment according to claim 1, characterized in that, The heat insulation and pressure holding assembly (22) includes a positioning frame (222) and a push cylinder (223): A positioning frame (222) is sleeved on the outer surface of the integral roller (221), and the positioning frame (222) is rotatably connected to the integral roller (221); A push cylinder (223) is fixedly installed inside the machine body (1). The output shaft of the push cylinder (223) is fixedly connected to the positioning frame (222). The push cylinder (223) is used to drive the positioning frame (222) to move vertically. A pressure sensor is provided at the connection between the push cylinder (223) and the positioning frame (222). The pressure sensor is electrically connected to the control unit.

4. The composite thermal insulation felt processing equipment according to claim 3, characterized in that, The heat insulation and pressure maintaining assembly (22) also includes a slider (224), a bellows-style isolation cover (225), a water inlet pipe (226), and a water outlet pipe (230): The slider (224) is fixedly installed on both sides of the positioning frame (222). The body (1) has a groove adapted to the slider (224), and the slider (224) is slidably connected inside the groove. A bellows-style isolation cover (225) is fixedly installed at both ends of a slider (224), and the other end of the bellows-style isolation cover (225) is fixedly connected to a slide groove; The water inlet pipe (226) is located on one side of the positioning frame (222); The water outlet pipe (230) is located on the other side of the positioning frame (222).

5. The composite thermal insulation felt processing equipment according to claim 4, characterized in that, The heat insulation and pressure holding assembly (22) also includes a spiral guide plate (227), a water inlet groove (228), and a water guide block (229); A spiral guide plate (227) is fixedly installed inside the integrated roller (221), and the water inlet pipe (226) and water outlet pipe (230) are respectively connected to the integrated roller (221); A water inlet trough (228) is located on one side of the integral roller (221); A water guide block (229) is fixedly installed inside the water inlet tank (228). The water guide block (229) is generally in the shape of a side-lying cone. The water guide block (229) is used to guide the medium to the water outlet pipe (230). A one-way valve is provided between the water guide block (229) and the water outlet pipe (230).

6. The composite thermal insulation felt processing equipment according to claim 1, characterized in that, The front-end detection module includes a mounting housing (231), an infrared thermal imager (232), and an infrared thermometer: Mounting housing (231) is disposed between heating roller and light pressure roller (211); Multiple sets of infrared thermal imagers (232) are fixedly installed inside the mounting housing (231). The infrared thermal imagers (232) are equidistantly arranged and are used to acquire the surface temperature of the thermal insulation felt in real time. An infrared thermometer is installed between the pressure roller (212) and the integrated roller (221). The infrared thermometer is used to detect the temperature distribution when the insulation felt enters the insulation and pressure-maintaining assembly (22).

7. The composite thermal insulation felt processing equipment according to claim 1, characterized in that, The front-end detection module also includes a protective shell (233), a drive motor (234), a threaded rod (235), a laser thickness gauge (236), and a bellows-style protective cover (237). Two sets of protective shells (233) are respectively disposed between the light pressure roller (211) and the heavy pressure roller (212), and between the heavy pressure roller (212) and the integrated roller (221); The drive motor (234) is fixedly mounted on one side of the protective housing (233); A threaded rod (235) is rotatably connected inside a protective shell (233), and the output shaft of the drive motor (234) is fixedly connected to the threaded rod (235); A laser thickness gauge (236) is horizontally slidably connected inside a protective shell (233), and the laser thickness gauge (236) is threadedly engaged with a threaded rod (235); The bellows-style protective cover (237) is fixedly installed on both sides of the laser thickness gauge (236), and the bellows-style protective cover (237) is fixedly connected to the protective shell (233).

8. The composite thermal insulation felt processing equipment according to claim 1, characterized in that, The curling detection module includes a crossbeam (238), a laser displacement sensor (239), a support plate (240), and an ultrasonic probe array (241). A crossbeam (238) is fixedly mounted on one side of an integral roller (221); A laser displacement sensor (239) is fixedly mounted on one side of the crossbeam (238); An ultrasonic probe array (241) is fixedly mounted on the other side of the crossbeam (238); The support plate (240) is rotatably connected to the inside of the machine body (1). The conveyor belt is made of transparent material. The support plate (240) is fixedly installed inside the conveyor belt. A receiver is provided inside the support plate (240).

9. The composite thermal insulation felt processing equipment according to claim 1, characterized in that, A feeding assembly (3) is provided on one side of the machine body (1), and a winding assembly (4) is provided on the other side of the machine body (1).

10. A method for processing composite thermal insulation felt, based on the composite thermal insulation felt processing equipment according to any one of claims 1-9, characterized in that, Includes the following steps: S1. Pre-detection: The pre-detection module acquires the surface temperature distribution and the thickness distribution after pressing of the thermal insulation felt, and transmits them to the control unit. S2. Pre-process adjustment: After receiving the surface temperature distribution, the control unit adjusts the output power of the heating roller; the control unit adjusts the applied pressure of the light pressure roller (211) according to the thickness distribution after light pressing; the control unit adjusts the applied pressure of the heavy pressure roller (212) according to the thickness distribution after heavy pressing. S3. Thermal insulation and pressure treatment: The composite felt after being treated by the two-stage pressure roller assembly (21) enters the thermal insulation and pressure treatment assembly (22), where multiple sets of integrated rollers (221) arranged in an array along the material travel direction are used for temperature and pressure control treatment. S4. Post-detection and correction: The curling detection module obtains the curling deformation distribution in the width direction of the composite felt, as well as the air bubbles and delamination defects inside the composite felt, and sends them to the control unit. S5. Post-process adjustment: The control unit determines whether the curling deformation distribution exceeds the preset curling threshold. If the threshold is not exceeded, maintain the current temperature and pressure distribution of the thermal insulation and pressure-maintaining components (22); If the threshold is exceeded, the control unit dynamically adjusts the temperature and pressure distribution of the heat insulation and pressure holding component (22) according to the distribution of curling deformation and the location of bubbles and delamination defects, and retrospectively queries the pre-detection data at the corresponding location in step S1 to determine the root cause of the curling abnormality; S6. Iterative optimization: Repeat steps S1 to S5, and store the pre-test data, post-test data and adjustment parameters of each batch into the database for use in setting initial parameters for subsequent production.

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