Glass fiber yarn composite cloth and preparation device thereof

Abstract

The invention relates to the technical field of composite cloth production, in particular to glass fiber yarn composite cloth and a preparation device thereof, and the glass fiber yarn composite cloth is formed by sequentially bonding and pressing a wear-resistant reinforced layer, a bio-based modified layer, a reinforced core layer, a bonding transition layer and a high-temperature-resistant base layer from outside to inside. A polytetrafluoroethylene (PTFE) film is adopted, the thickness is 0.15 mm, the material has excellent wear resistance and chemical corrosion resistance, the surface wear resistance of the composite cloth can be effectively improved, the service life is prolonged, the transition layer is bonded, the warp yarns and the weft yarns are arranged in a 45-degree crossed mode, the interweaving density is that the warp yarns are 80 pieces per 10 cm, the weft yarns are 80 pieces per 10 cm, and the warp yarns and the weft yarns are interwoven and formed through a rapier loom. The core layer and the high-temperature-resistant base layer are interwoven and formed through a rapier loom, the overall thickness of the core layer is 0.5 mm, the high-temperature-resistant base layer is 5 mm, mechanical loads in the warp direction and the weft direction can be evenly transmitted through 45-degree intersection, breakage caused by stress concentration in the single direction is avoided, the overall stretching resistance and the overall tearing resistance of the composite cloth are remarkably improved, and the composite cloth is suitable for complex stress scenes.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of composite cloth production, in particular to a glass fiber yarn composite cloth and a preparation device thereof. BACKGROUND

[0002] Glass fiber composite cloth is widely used in building, automobile, electronic and electrical, aerospace, machinery manufacturing and other fields due to its excellent mechanical strength, corrosion resistance, high temperature resistance and insulation performance, and is an indispensable key basic material in modern industrial production. With the continuous improvement of the performance requirements of various industries on materials, the traditional single structure of glass fiber cloth has been difficult to meet the comprehensive performance requirements in complex scenarios. For example, in the field of mechanical equipment protection, wear resistance, impact resistance and structural stability need to be considered at the same time; in the field of electronic equipment, the coordination requirements of dielectric performance and lightweight are increasingly stringent; in high temperature working conditions, the material needs to have reliable high temperature resistance and interlayer bonding strength. In order to optimize the comprehensive performance of glass fiber cloth, the existing technology adopts a multi-layer composite structure design, which combines glass fiber with other high molecular materials and functional additives to realize performance complementation and improvement. For example, some technologies use glass fiber and PP, epoxy resin and other polymers to improve the flexibility and adhesion of glass fiber cloth; other technologies add carbon additives, bio-based materials and other additives to give the composite cloth additional functions such as dielectric regulation, environmental protection and sustainability. However, the existing multi-layer glass fiber composite cloth still has many shortcomings in structure design and performance coordination: on the one hand, the interlayer structure design of some composite cloths is unreasonable, and the compatibility between the wear-resistant layer, the reinforcing layer and the base layer is poor, which easily causes delamination and peeling, resulting in a decrease in the overall mechanical properties of the material and a shortening of the service life; on the other hand, the performance matching degree of the functional layer and the structural layer is insufficient, for example, although some modified layers can improve the dielectric performance, they will sacrifice the mechanical strength or high temperature resistance of the material, making it difficult to achieve balanced optimization of multiple performances. In the core structure design of glass fiber yarn composite cloth, the reinforcing core layer is the key part of bearing mechanical load, and its fiber interlacing method and raw material ratio directly determine the overall strength and stability of the composite cloth. In the existing technology, the reinforcing core layer is mostly arranged in the orthogonal (0° / 90°) arrangement of warp yarn and weft yarn. Although this structure is simple to prepare, it has the problem of obvious mechanical property anisotropy, which easily causes weak points in the non-orthogonal direction, resulting in the fracture of the composite cloth under complex stress conditions such as bending and stretching. SUMMARY

[0003] Therefore, the present application provides a glass fiber yarn composite cloth and a preparation device thereof to solve the above problems.

[0004] The present invention provides the following technical solution: a glass fiber yarn composite fabric, comprising, from the outside to the inside, a wear-resistant reinforcing layer, a bio-based modified layer, a reinforcing core layer, an adhesive transition layer, and a high-temperature resistant base layer. The reinforcing core layer is composed of interwoven warp and weft yarns. The warp yarns are alkali-free glass fiber bundles, and the weft yarns are a blended yarn of continuous PP fiber and glass fiber. The warp and weft yarns are arranged at a 45° angle, and the weight ratio of PP fiber to glass fiber in the blended yarn is 1:3 to 1:5.

[0005] As a preferred embodiment of the present invention, the bio-based modified layer is a blend of bio-based PP fiber and carbon additive, wherein the amount of carbon additive added is 5% to 10% of the weight of bio-based PP fiber, the thickness of the bio-based modified layer is 0.12 to 0.33 mm, and the dielectric constant is ≤3.5.

[0006] As a preferred embodiment of the present invention, the bonding transition layer adopts an interpenetrating network structure of bisphenol F type epoxy resin and epoxidized soybean oil, wherein the proportion of bisphenol F type epoxy resin is 60% to 67%, the proportion of epoxidized soybean oil is 33% to 40%, and the shear strength of the bonding transition layer is ≥3.3MPa.

[0007] An apparatus for preparing fiberglass yarn composite fabric includes a profile frame, a rolling device for compacting a wear-resistant reinforcing layer, a bio-based modified layer, a reinforcing core layer, an adhesive transition layer, and a high-temperature resistant base layer, and an adhesive applicator for bonding the wear-resistant reinforcing layer, the bio-based modified layer, the reinforcing core layer, the adhesive transition layer, and the high-temperature resistant base layer. The rolling device is a plurality of devices, which are distributed at equal intervals along the length of the profile frame on the top of the profile frame and on the side away from the adhesive applicator.

[0008] As a preferred embodiment of the present invention, the rolling device includes two bearing seats installed along the width direction of the top of the profile frame, a support roller is rotatably installed between the two bearing seats, a spindle pressure roller is rotatably arranged on the top of the support roller, a central shaft is integrally provided at both ends of the spindle pressure roller, and a bearing sleeve is rotatably sleeved around the two central shafts through bearings, and two horizontally distributed pins are integrally provided around the bearing sleeves, the pins being perpendicular to the central shafts.

[0009] As a preferred embodiment of the present invention, the rolling device further includes two bearing seats 2 rotatably sleeved around the two pins via bearings. The bottom of the two bearing seats 2 is provided with a support plate. Two guide shafts are fixedly installed on the bottom of the support plate along its length direction. Springs are sleeved around the guide shafts. A support plate is slidably sleeved around the two guide shafts via linear bearings. Two flexible rubber blocks are fixedly installed on the bottom of the support plate along its length direction. The bottom of the two flexible rubber blocks is fixed to the top of the profile frame by fasteners. The flexible rubber blocks are made of elastic rubber material.

[0010] As a preferred embodiment of the present invention, the spring is fixedly installed between the bottom of the tray and the top of the support plate.

[0011] As a preferred embodiment of the present invention, the rolling device further includes two bearing seats three fixedly installed on the top wall of the profile frame. The two bearing seats three are distributed on both sides of the central axis of the support roller. A swing shaft is rotatably installed between the two bearing seats three. An equal-length lever is fixedly installed on the swing shaft. The equal-length lever is located between the two bearing seats three. A cable is fixedly installed at both ends of the top of the equal-length lever. The cable is located at the bottom of the pull beam, and the top of the cable is fixedly connected to the bottom of one of the pull beams at its top. A clearance groove is provided on the surface of the profile frame for the pull beam to pass through.

[0012] As a preferred embodiment of the present invention, a swing arm is fixedly installed at the end of the swing shaft, and a sliding groove is provided on the swing arm. A reduction motor is also fixedly installed on the top wall of the profile frame, and a rocker arm is fixedly installed on the output shaft of the reduction motor. The rocker arm is located on the side of the swing arm, and a sliding pin is fixedly installed on the side of the rocker arm near the swing arm. The sliding pin is slidably installed inside the sliding groove.

[0013] As a preferred embodiment of the present invention, a bevel gear 1 is fixedly installed at one end of each of the two adjacent swing shafts, and a positioning vertical shaft is fixedly installed on the top wall of the profile frame between the two adjacent swing shafts. A bevel gear 2 is rotatably installed on the positioning vertical shaft, and the bevel gear 2 meshes with the two bevel gears 1.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention uses a polytetrafluoroethylene (PTFE) film with a thickness of 0.15 mm. This material has excellent wear resistance and chemical corrosion resistance, which can effectively improve the wear resistance of the composite fabric surface, extend its service life, and bond the transition layer. The warp and weft yarns are arranged at a 45° cross, with an interlacing density of 80 warp yarns / 10 cm and 80 weft yarns / 10 cm. It is formed by interlacing on a rapier loom. The overall thickness of the core layer is 0.5 mm, and the high-temperature resistant base layer is 5 mm. Compared with the conventional 0° / 90° orthogonal arrangement, the 45° cross allows the warp and weft mechanical loads to be evenly transferred, avoiding breakage caused by concentrated force in one direction. This significantly improves the overall tensile and tear resistance of the composite fabric and makes it suitable for complex stress scenarios.

[0015] 2. The bonding transition layer of this invention adopts an interpenetrating network structure of bisphenol F type epoxy resin and epoxidized soybean oil, wherein the proportion of bisphenol F type epoxy resin is 60% to 67% and the proportion of epoxidized soybean oil is 33% to 40%. During preparation, the bisphenol F type epoxy resin and epoxidized soybean oil are first mixed in proportion, and an appropriate amount of curing agent (diethylenetriamine, added at 8% of the total weight of resin) and accelerator (2-methylimidazole, added at 0.5% of the total weight of resin) are added. After stirring evenly, it is coated between the reinforcing core layer 3 and the high-temperature resistant base layer 5, and cured at 120°C for 2 hours to form a layer with a thickness of 0.18 mm, which has reliable bonding performance.

[0016] 3. The spindle pressure roller of the rolling device of the present invention moves together with the two bearing sleeves that move up and down alternately, making a swinging motion. Due to the spindle shape of the spindle pressure roller, the spindle pressure roller can press the composite fabric more smoothly during the swinging motion, ensuring that the layers of the composite fabric are tightly and evenly bonded. This effectively avoids quality problems such as delamination and bubbling caused by weak bonding, greatly improving the overall quality and performance stability of the composite fabric. At the same time, this unique structural design allows the spindle pressure roller to roll and squeeze the glue in the middle of the composite fabric and the air bubbles inside the composite fabric towards the edge during the swinging motion. This rolling and squeezing method can further enhance the bonding effect between the layers of the composite fabric, making the glue distribution more even, and completely eliminating any possible weak bonding areas. Moreover, in the process of squeezing the air bubbles towards the edge, it can also effectively reduce the cavities caused by residual air bubbles inside the composite fabric, avoiding problems such as deformation and reduced strength of the composite fabric due to the presence of cavities during subsequent use. Thus, the quality of the composite fabric is comprehensively improved, enabling it to better meet the needs of high-performance composite fabrics in different application scenarios. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the glass fiber yarn composite fabric structure of the present invention; Figure 2 This is a schematic diagram of the glass fiber yarn composite fabric preparation device in this invention; Figure 3 In this invention Figure 2 A partial structural diagram of the front view; Figure 4 In this invention Figure 2 A partial structural diagram; Figure 5 In this invention Figure 4 A partially enlarged structural diagram; Figure 6 This is a schematic diagram of the rolling device in this invention; Figure 7 This is a partial unfolded structural diagram of the rolling device in this invention; Figure 8 This is a side view of the rolling device in this invention; Figure 9 In this invention Figure 6 A partially enlarged structural diagram.

[0018] In the diagram: 1. Wear-resistant reinforced layer; 2. Bio-based modified layer; 3. Reinforced core layer; 4. Bonding transition layer; 5. High-temperature resistant base layer; 100. Profile frame; 101. Relief groove; 200. Rolling device; 201. Bearing housing one; 202. Support roller; 203. Spindle roller; 204. Central shaft; 205. Bearing sleeve; 206. Pin; 207. Bearing housing two; 208. Support plate; 209. Guide shaft; 2010. Spring; 2011, Support plate; 2012, Flexible rubber block; 2013, Bearing seat three; 2014, Swing shaft; 2015, Equal length lever; 2016, Cable; 2017, Tie beam; 2018, Bevel gear one; 2019, Positioning vertical shaft; 2020, Bevel gear two; 2021, Swing arm; 2022, Slide groove; 2023, Gear motor; 2024, Rocker arm; 2025, Sliding pin; 400, Glue application device. Detailed Implementation

[0019] 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.

[0020] Example: Please refer to Figure 1 The glass fiber yarn composite fabric shown is composed of, from the outside to the inside, a wear-resistant reinforcing layer 1, a bio-based modified layer 2, a reinforcing core layer 3, an adhesive transition layer 4, and a high-temperature resistant base layer 5, bonded and pressed together. in: Wear-resistant reinforcement layer 1: Made of polytetrafluoroethylene (PTFE) film with a thickness of 0.15mm. This material has excellent wear resistance and chemical corrosion resistance, which can effectively improve the wear resistance of the composite fabric surface and extend its service life.

[0021] Bio-based modified layer 2: This is a blended layer of bio-based PP fiber and carbon additive, wherein the carbon additive is selected as nano-graphite powder, and the amount added is 7% of the weight of the bio-based PP fiber. The bio-based PP fiber is prepared from bio-based raw materials extracted from corn stalks. This layer is prepared by hot pressing molding process and has a thickness of 0.22 mm. The dielectric constant of this bio-based modified layer is 3.5, which meets the dielectric performance requirements.

[0022] Reinforcing Core Layer 3: Composed of interwoven warp and weft yarns. The warp yarns are made of alkali-free glass fiber bundles of type E-GF, with a single filament diameter of 10μm and a bundle count of 2400 filaments. The weft yarns are a blend of continuous PP fiber and alkali-free glass fiber, with a weight ratio of PP fiber to glass fiber of 1:4. Bonding transition layer 4: The warp and weft yarns are arranged at a 45° cross, with an interlacing density of 80 warp yarns / 10cm and 80 weft yarns / 10cm. They are interlaced and formed by a rapier loom. The overall thickness of the core layer is 0.5mm, and the high-temperature resistant base layer is 5mm. Compared with the conventional 0° / 90° orthogonal arrangement, the 45° cross allows for the uniform transfer of mechanical loads in the warp and weft directions, avoiding breakage caused by concentrated force in one direction. This significantly improves the overall tensile and tear resistance of the composite fabric, making it suitable for complex stress scenarios.

[0023] Adhesive transition layer 4: It adopts an interpenetrating network structure of bisphenol F epoxy resin and epoxidized soybean oil, wherein the proportion of bisphenol F epoxy resin is 60% to 67% and the proportion of epoxidized soybean oil is 33% to 40%. In preparation, the bisphenol F epoxy resin and epoxidized soybean oil are first mixed in proportion, and an appropriate amount of curing agent (diethylenetriamine, added at 8% of the total weight of resin) and accelerator (2-methylimidazole, added at 0.5% of the total weight of resin) are added. After stirring evenly, it is coated between the reinforcing core layer 3 and the high-temperature resistant base layer 5, and cured at 120℃ for 2 hours to form a layer with a thickness of 0.18 mm, which has reliable bonding performance.

[0024] High-temperature resistant base layer 5: Made of para-aramid fiber cloth with a thickness of 0.3mm. This material can withstand high temperatures up to 250℃ and has excellent mechanical strength, providing stable support and high-temperature protection for the composite cloth.

[0025] In this embodiment, reference is made to Figures 2-9 As shown, an apparatus for preparing glass fiber yarn composite fabric includes a profile frame 100, a rolling device 200 for compacting a wear-resistant reinforcing layer 1, a bio-based modified layer 2, a reinforcing core layer 3, a bonding transition layer 4, and a high-temperature resistant base layer 5, and an adhesive applicator 400 for bonding the wear-resistant reinforcing layer 1, the bio-based modified layer 2, the reinforcing core layer 3, the bonding transition layer 4, and the high-temperature resistant base layer 5. The number of rolling devices 200 is several, and the several rolling devices 200 are evenly distributed at the top of the profile frame 100 along the length direction of the profile frame 100, and on the side away from the adhesive applicator 400.

[0026] In this embodiment, reference is made to Figures 5-9As shown, the rolling device 200 includes two bearing seats 201 installed along the width direction of the top of the profile frame 100. A support roller 202 is rotatably installed between the two bearing seats 201. A spindle pressure roller 203 is rotatably mounted on the top of the support roller 202. A central shaft 204 is integrally provided at both ends of the spindle pressure roller 203. Bearing sleeves 205 are rotatably sleeved around the two central shafts 204 through bearings. Two horizontally distributed pins 206 are integrally provided around the bearing sleeves 205. The pins 206 are perpendicular to the central shafts 204. The rolling device 200 also includes a bearing sleeve rotatably sleeved around the two pins 206. The frame consists of two bearing seats 207, with a support plate 208 at their bottom. Two guide shafts 209 are fixedly installed along the length of the support plate 208. Springs 2010 are sleeved around the guide shafts 209, and a support plate 2011 is slidably sleeved around the two guide shafts 209 via linear bearings. Two flexible rubber blocks 2012 are fixedly installed along the length of the support plate 2011. The bottoms of the two flexible rubber blocks 2012 are fixed to the top of the profile frame 100 by fasteners. The flexible rubber blocks 2012 are made of elastic rubber. The springs 2010 are fixedly installed on the support plate 208. Between the bottom of 08 and the top of the support plate 2011, the rolling device 200 also includes two bearing seats 3 2013 fixedly installed on the top wall of the profile frame 100. The two bearing seats 3 2013 are distributed on both sides of the central axis of the support roller 202. A swing shaft 2014 is rotatably installed between the two bearing seats 3 2013. An equal-length lever 2015 is fixedly installed on the swing shaft 2014. The equal-length lever 2015 is located between the two bearing seats 3 2013. Cables 2016 are fixedly installed at both ends of the top of the equal-length lever 2015. The cables 2016 are located at the bottom of the tie beam 2017, and the top of the cables 2016 are connected to the bottom of the tie beam 2017. A tie beam 2017 is fixedly connected to the bottom at the top. A clearance groove 101 for the tie beam 2017 to pass through is opened on the surface of the profile frame 100. A swing arm 2021 is fixedly installed at the end of the swing shaft 2014. A sliding groove 2022 is opened on the swing arm 2021. A reduction motor 2023 is also fixedly installed on the top wall of the profile frame 100. A rocker arm 2024 is fixedly installed on the output shaft of the reduction motor 2023. The rocker arm 2024 is located on the side of the swing arm 2021, and a sliding pin 2025 is fixedly installed on the side of the rocker arm 2024 near the swing arm 2021. The sliding pin 2025 is slidably installed inside the sliding groove 2022.The master rolls of the wear-resistant reinforcing layer 1, the bio-based modified layer 2, the reinforcing core layer 3, the bonding transition layer 4, and the high-temperature resistant base layer 5 are uniformly passed through the inside of the gluing device 400 under the winding equipment. The gluing rollers inside the gluing device 400 apply adhesive. Afterward, the initially bonded composite fabric is continuously wound by the external winding equipment between the support roller 202 and the spindle pressure roller 203. During this process, the output shaft of the reduction motor 2023 drives the rocker arm 2024 and the sliding pin 2025 to rotate, causing the swing arm 2021 and the swing shaft 2014 connected to the swing arm 2021 to rotate alternately in both directions, thereby driving the equal-length lever 2015 to rotate synchronously in both directions. The mechanism rotates, and through two cables 2016, applies downward force to two tie beams 2017 one by one, causing the two tie beams 2017 to move up and down alternately. The tie beam 2017 that is pulled down drives the guide shaft 209 to move downward along the inside of the support plate 2011. At the same time, the guide shaft 209 also drives the connected support plate 208, bearing seat 207, pin 206, and bearing sleeve 205 to move downward as a whole, causing the spring 2010 to compress and store elasticity. Each time the rotation direction of the equal-length lever 2015 changes, the two sets of guide shafts 209 move up and down along the width direction of the profile frame 100. The direction alternates in this way, and under the continuous alternating forward and reverse rotation of the equal-length lever 2015, the spindle pressure roller 203 moves together with the two bearing sleeves 205 that move up and down alternately, making a oscillating motion. Due to the spindle-shaped design of the spindle pressure roller 203, it can more smoothly press the composite fabric during the oscillating motion, ensuring that the layers of the composite fabric are tightly and evenly bonded. This effectively avoids quality problems such as delamination and bubbling caused by weak bonding, greatly improving the overall quality and performance stability of the composite fabric. At the same time, this unique structural design allows the spindle pressure roller 203 to... During the oscillating motion, the adhesive in the middle of the composite fabric and the air bubbles inside the composite fabric can be rolled and squeezed out towards the edge. This rolling and squeezing method can further enhance the bonding effect between the layers of the composite fabric, make the adhesive distribution more uniform, and completely eliminate any possible weak bonding areas. Moreover, in the process of squeezing the air bubbles towards the edge, it can also effectively reduce the cavities caused by residual air bubbles inside the composite fabric, avoiding problems such as deformation and reduced strength of the composite fabric due to the presence of cavities during subsequent use. This comprehensively improves the quality of the composite fabric, enabling it to better meet the needs of high-performance composite fabrics in different application scenarios.

[0027] In this embodiment, reference is made to Figure 3As shown, bevel gear 2018 is fixedly installed at the close end of two adjacent swing shafts 2014. A positioning vertical shaft 2019 is fixedly installed on the top wall of the profile frame 100 between the two adjacent swing shafts 2014. A bevel gear 2020 is rotatably installed on the positioning vertical shaft 2019. The bevel gear 2020 meshes with the two bevel gears 2018. In actual operation, this meshing structure design allows the swing shaft 2014 to rotate. Because bevel gear 1 2018 meshes with bevel gear 2020, bevel gear 2020 rotates accordingly. The rotation of bevel gear 2020, in turn, acts in the opposite direction on bevel gear 1 2018, creating a mutually opposing, coordinated rotation mechanism between the two adjacent swing shafts 2014. This ultimately causes the two adjacent spindle rollers 203 to perform alternating, opposing oscillations. This alternating oscillation allows for more thorough rolling of the composite fabric, resulting in more uniform rolling pressure throughout the fabric. This further enhances the penetration of adhesive between the layers of the composite fabric, strengthens the bond between layers, and prevents missed rolling areas. It effectively prevents problems such as loose bonding and air pockets caused by insufficient local rolling, significantly improving the production quality of the glass fiber composite fabric, ensuring product performance stability and reliability, and providing a solid quality foundation for subsequent use.

[0028] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A glass fiber yarn composite cloth, characterized by, From outside to inside in turn includes wear-resistant reinforced layer (1), biological base modified layer (2), reinforcing core layer (3), bonding transition layer (4) and high temperature resistant base layer (5), the reinforcing core layer (3) is interwoven by warp and weft, the warp is alkali-free glass fiber bundle, the weft is the mixed yarn of continuous PP fiber and glass fiber, the warp and weft are arranged in 45 °, and the weight ratio of PP fiber and glass fiber in mixed yarn is 1:3-1:

5.

2. The glass fiber yarn composite cloth according to claim 1, characterized in that: The biological base modified layer (2) is a blend layer of biological base PP fiber and carbon additive, the carbon additive addition amount is 5%-10% of the weight of biological base PP fiber, the thickness of biological base modified layer is 0.12-0.33mm, and the dielectric constant is ≤3.

5.

3. The glass fiber yarn composite cloth according to claim 1, characterized in that: The bonding transition layer (4) adopts interpenetrating network structure of bisphenol F type epoxy resin and epoxidized soybean oil, wherein the proportion of bisphenol F type epoxy resin is 60%-67%, the proportion of epoxidized soybean oil is 33%-40%, and the shear strength of bonding transition layer is ≥3.3MPa.

4. A preparation device for the glass fiber yarn composite cloth of any one of claims 1-3, characterized in that: It comprises a profile rack (100), further comprises a rolling device (200) for compacting the wear-resistant reinforced layer (1), the biological base modified layer (2), the reinforcing core layer (3), the bonding transition layer (4) and the high temperature resistant base layer (5), and a gluing device (400) for bonding the wear-resistant reinforced layer (1), the biological base modified layer (2), the reinforcing core layer (3), the bonding transition layer (4) and the high temperature resistant base layer (5), the number of rolling devices (200) is several, and the several rolling devices (200) are equidistantly distributed on the top of the profile rack (100) along the length direction of the profile rack (100), and away from the side of the gluing device (400).

5. The preparation device for the glass fiber yarn composite cloth according to claim 4, characterized in that: The rolling device (200) comprises two bearing seats one (201) installed along the width direction of the top of the profile rack (100), a supporting roller (202) rotatably installed between the two bearing seats one (201), a spindle press roller (203) rotatably arranged on the top of the supporting roller (202), two center shafts (204) integrally arranged at the two ends of the spindle press roller (203), an outer bearing sleeve (205) rotatably arranged on the two center shafts (204), and two horizontally distributed pin shafts (206) integrally arranged on the outer periphery of the bearing sleeve (205), wherein the pin shafts (206) are perpendicular to the center shafts (204).

6. The preparation device for the glass fiber yarn composite cloth according to claim 5, characterized in that: The rolling device (200) further comprises two bearing seats two (207) rotatably sleeved on the periphery of the two pin shafts (206), the bottom of the two bearing seats two (207) is provided with a supporting plate (208) in common, the bottom of the supporting plate (208) is fixedly installed with two guide shafts (209) along the length direction, the periphery of the guide shafts (209) is sleeved with springs (2010), and the periphery of the two guide shafts (209) is slidably sleeved with a supporting plate (2011) through a linear bearing, the bottom of the supporting plate (2011) is fixedly installed with two flexible rubber pads (2012) along the length direction, the bottom of the two flexible rubber pads (2012) is fixed to the top of the profile rack (100) through fasteners, and the flexible rubber pad (2012) is made of elastic rubber material.

7. The device for preparing a glass fiber yarn composite cloth according to claim 6, wherein: The spring (2010) is fixedly installed between the bottom of the supporting plate (208) and the top of the supporting plate (2011).

8. The device for preparing a glass fiber yarn composite cloth according to claim 7, wherein: The rolling device (200) further comprises two bearing seats three (2013) fixedly installed on the top wall of the profile rack (100), the two bearing seats three (2013) are distributed on both sides of the central axis of the supporting roller (202), a swing shaft (2014) is rotatably installed between the two bearing seats three (2013), an equal-length lever (2015) is fixedly installed on the swing shaft (2014), the equal-length lever (2015) is located between the two bearing seats three (2013), and two cables (2016) are fixedly installed at the two ends of the top of the equal-length lever (2015), the cables (2016) are located at the bottom of the pull beam (2017), the top of the cable (2016) is fixedly connected with the bottom of one of the pull beams (2017), and the profile rack (100) is provided with a gap slot (101) for the pull beam (2017) to pass through.

9. The device for preparing a glass fiber yarn composite cloth according to claim 8, wherein: The end of the swing shaft (2014) is fixedly installed with a swing arm (2021), the swing arm (2021) is provided with a sliding groove (2022), the top wall of the profile rack (100) is further fixedly provided with a speed reducer (2023), a rocker arm (2024) is fixedly installed on the output shaft of the speed reducer (2023), the rocker arm (2024) is located on the side of the swing arm (2021), one side of the rocker arm (2024) close to the swing arm (2021) is fixedly installed with a sliding pin (2025), and the sliding pin (2025) is slidably installed in the sliding groove (2022).

10. The device for preparing a glass fiber yarn composite cloth according to claim 9, wherein: Two adjacent said swing shafts (2014) are fixedly installed with bevel gears one (2018) at one end close to each other, the profile rack (100) is fixedly installed with a positioning vertical shaft (2019) on the top wall and between the two adjacent swing shafts (2014), the positioning vertical shaft (2019) is rotatably installed with a bevel gear two (2020), and the bevel gear two (2020) is in mesh with the two bevel gears one (2018).

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