Composite glass fiber cloth coating equipment and use method

Abstract

The invention relates to composite glass fiber cloth coating equipment and a using method thereof.The composite glass fiber cloth coating equipment comprises a control assembly arranged at a feeding port of a coating equipment body in the feeding direction of the coating equipment body, and the control assembly comprises a first pressing roller and a second pressing roller which are vertically distributed in the vertical direction; a composite glass fiber cloth conveying channel located in the feeding direction is formed between the first pressing roller and the second pressing roller, racks are arranged on the two sides of the second pressing roller, driving parts are arranged on the racks, and the driving parts are used for driving the first pressing roller to do vertical linear motion. According to the composite glass fiber cloth coating equipment, the first pressing roller is driven by the first driving part to do vertical linear motion, and the gap between the first pressing roller and the second pressing roller can be adjusted, so that the equipment can adapt to composite glass fiber cloth with different thicknesses, and the cloth is leveled before entering a coating area; the composite glass fiber cloth is prevented from being wrinkled in the conveying process, a foundation is laid for subsequent uniform coating, and the coating quality is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of composite material manufacturing, in particular to a composite glass fiber cloth coating device and a use method thereof. BACKGROUND

[0002] As a kind of high-performance reinforcing material, composite glass fiber cloth is widely used in aerospace, automobile manufacturing, building materials, electronic insulation and other fields due to its excellent mechanical properties, heat resistance and corrosion resistance. In its manufacturing process, resin, coating or other functional materials are often coated to give it specific properties or improve its interfacial bonding ability. The core purpose of pre-treatment is to improve the surface properties of glass fiber cloth, so that it can achieve optimal wettability and adhesion with the coating material. Untreated glass fiber cloth has problems such as smooth surface, strong inertness, easy adsorption of contaminants and residual spinning lubricant, which can seriously hinder the coating effect.

[0003] During unwinding and conveying, composite glass fiber cloth is prone to wrinkles, relaxation or excessive stretching due to uneven tension. Existing equipment often uses fixed-gap guide rollers to flatten the composite glass fiber cloth, but it is difficult to adapt to different thicknesses of cloth, resulting in defects in the cloth before entering the coating unit, which in turn causes uneven coating layer thickness, inconsistent penetration and other quality problems, seriously affecting the performance stability of the final product.

[0004] Therefore, a composite glass fiber cloth coating device and a use method thereof are proposed to solve the technical problem of being unable to adapt to different thicknesses of composite glass fiber cloth. SUMMARY

[0005] In view of the deficiencies of the prior art, the present application provides a composite glass fiber cloth coating device and a use method thereof, which has the advantage of good adaptability and solves the problem of being unable to adapt to different thicknesses of composite glass fiber cloth.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solution: a composite glass fiber cloth coating device, comprising a control assembly arranged at the inlet of the coating device body in the feeding direction of the coating device body; The control assembly comprises first and second pressure rollers distributed vertically upward and downward, and a composite glass fiber cloth conveying channel is formed between the first and second pressure rollers in the feeding direction. The first pressure roller makes vertical linear motion above the second pressure roller. The second pressure roller is provided with a rack on both sides. The rack is arranged on the coating device body. The first pressure roller is slidably connected to the rack. The rack is provided with a driving portion, and the driving portion is used to drive the first pressure roller to make vertical linear motion.

[0007] Further, one of the racks is provided with a first driving module, an output end of the first driving module is provided with a first threaded rod, and one end of the first threaded rod away from the first driving module is connected with one of the moving members.

[0008] Further, both ends of the first compression roller are provided with first shaft rods, and the moving members are rotationally connected with the first shaft rods through bearing seats.

[0009] Further, the rack is provided with a guide rail, and a sliding groove is formed in the moving member corresponding to the guide rail, and the guide rail and the sliding groove are in sliding connection.

[0010] Further, the other rack is provided with a limiting rod, and the limiting rod is connected with the moving member. The other rack is provided with a guide hole through which the limiting rod penetrates, and the guide hole and the limiting rod are in clearance fit.

[0011] Further, the second compression roller is provided with a second shaft rod, the rack is provided with a second driving module, and an output end of the second driving module is connected with the second shaft rod.

[0012] Further, the rack is provided with a limiting part connected with the second compression roller, the limiting part comprises a third driving module arranged on the rack, an output end of the driving module is provided with a second threaded rod, the second threaded rod is arranged between opposite sides of the two racks, a sleeve in screw connection with the second threaded rod is symmetrically arranged on the second threaded rod, and a limiting ring connected with the sleeve is symmetrically arranged on the outer side of the second compression roller.

[0013] Further, the outer side of the second threaded rod is provided with threads in two opposite directions, and the inner diameter of the limiting ring is matched with the outer diameter of the second compression roller.

[0014] Further, the coating equipment body is provided with a pretreatment bin, an inner top wall of the pretreatment bin is provided with a dust suction bin, an array type dust suction hole is formed in the dust suction bin, and a connecting pipe in communication with the dust suction bin is connected with an output end of an external dust collection fan.

[0015] Further, the application further provides a use method of the composite glass fiber cloth coating equipment, which is applied to the composite glass fiber cloth coating equipment as described above, and the use method comprises the following steps: S1: starting the coating equipment body, adjusting the distance between the first compression roller and the second compression roller to adapt to the thickness of the cloth; S2: starting the second driving module to drive the second compression roller to rotate and convey the composite glass fiber cloth. S3: In the process of flattening the composite glass fiber cloth, the lateral position of the second compression roller is adjusted by the limiting part to prevent the composite glass fiber cloth from deviating; S4: After the composite glass fiber cloth is flattened, it enters the pretreatment bin and removes the surface dust through the dust suction bin; S5: After the dust removal is completed, the coating treatment of the composite glass fiber cloth is started.

[0016] Compared with the prior art, the technical scheme of the present application has the following beneficial effects: 1. The composite glass fiber cloth coating equipment drives the first compression roller to make precise vertical linear motion through the first driving part, which can flexibly and accurately adjust the gap between the first compression roller and the second compression roller, which enables the equipment to quickly adapt to composite glass fiber cloths of different thicknesses, and flattens the cloth before it enters the coating area, preventing the composite glass fiber cloth from wrinkling during transportation, laying a foundation for subsequent uniform coating and improving the coating quality.

[0017] 2. The composite glass fiber cloth coating equipment can real-time and synchronously adjust the distance between the two limiting rings on the second compression roller through the limiting part composed of the third driving module, the bidirectional threaded rod and the limiting ring, which can actively correct the lateral deviation of the composite glass fiber cloth during transportation, ensuring that the cloth always runs stably along the center line, which avoids uneven coating, edge material shortage and even equipment downtime caused by deviation of the composite glass fiber cloth, significantly improving the production efficiency and the first pass rate of the product.

[0018] 3. The composite glass fiber cloth coating equipment integrates the dust suction bin in the pretreatment bin at the front of the coating equipment, which can efficiently remove the dust, fiber fluff and other pollutants on the surface of the cloth through the array type dust suction hole before the cloth enters the core coating unit, which ensures that the coating is carried out on a clean substrate surface, effectively reduces impurities and defects in the coating, and greatly improves the adhesion, appearance quality and performance reliability of the final product.

[0019] 4. The use method of the composite glass fiber cloth coating equipment converts complex process parameter settings into clear and sequential steps, so that even inexperienced operators can produce high-quality products by following the process. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a schematic diagram of the overall structure of the present application; Figure 2 is a schematic diagram of the overall structure of the control assembly in the present application; Figure 3 is a split structure schematic diagram of the moving part and the guide rail in the present application; Figure 4It is a schematic view of the connecting structure of the sleeve and the second threaded rod in the application; Figure 5 It is a schematic view of the split structure of the second driving module and the second compression roller in the application; Figure 6 It is a schematic view of the overall structure of the pretreatment bin in the application; Figure 7 It is a structure bottom view of the dust collection bin in the application In the figure: 100, coating equipment body; 200, control assembly; 300, rack; 101, pretreatment bin; 102, dust collection bin; 103, dust collection hole; 104, connecting pipe; 201, first compression roller; 202, second compression roller; 203, first driving module; 204, first threaded rod; 205, moving piece; 206, first shaft; 207, guide rail; 208, sliding groove; 209, limiting rod; 301, second shaft; 302, second driving module; 303, third driving module; 304, second threaded rod; 305, sleeve; 306, limiting ring. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the application.

[0022] Embodiment 1: Please refer to Figure 1 and Figure 5 The composite glass fiber cloth coating equipment in the embodiment comprises a control assembly 200 arranged at the feeding port in the feeding direction of the coating equipment body 100. It should be noted that the coating equipment body 100 is a common device in the prior art, and the use method and working principle of the coating equipment body 100 are known to those skilled in the composite material manufacturing technology field, which will not be described in detail in this application.

[0023] The control assembly 200 comprises first compression rollers 201 and second compression rollers 202 distributed vertically upward and downward, a composite glass fiber cloth conveying channel in the feeding direction is formed between the first compression rollers 201 and the second compression rollers 202, the first compression rollers 201 make vertical linear motion above the second compression rollers 202, the two sides of the second compression rollers 202 are provided with racks 300, the racks 300 are arranged on the coating equipment body 100, the first compression rollers 201 are in sliding connection with the racks 300, the racks 300 are provided with driving parts, and the driving parts are used to drive the first compression rollers 201 to make vertical linear motion.

[0024] Specifically, the second shaft rod 301 is arranged on the second compression roller 202, and the second driving module 302 is arranged on the rack 300, and the output end of the second driving module 302 is connected with the second shaft rod 301.

[0025] It should be noted that the second driving module 302 drives the second shaft rod 301 to drive the second compression roller 202 to rotate actively, so as to provide stable and reliable traction power for the composite glass fiber cloth, and ensure that the cloth can be stably and continuously conveyed to the subsequent process after being compressed and flattened. The second driving module 302 is connected with the control unit, the control unit controls the output shaft of the second driving module 302 to uniformly stretch and contract, so that the second compression roller 202 rotates at a constant speed; the control unit and its working principle are well known to those skilled in the art, and will not be described in this embodiment. Preferably, the second driving module 302 is a servo motor.

[0026] In application, when the composite glass fiber cloth enters the feeding port of the equipment, it is first flattened by the control assembly 200, the driving part is started, the first compression roller 201 is driven to make vertical linear motion on the rack 300, so as to adjust the gap between the first compression roller 201 and the second compression roller 202, adjust the pressure, so that the equipment can adapt to composite glass fiber cloths of different thicknesses, and apply a stable and adjustable pressure to the passing cloth, so as to establish appropriate conveying tension and flatten the cloth, effectively eliminating wrinkles and relaxation generated in the unwinding and conveying process. The cloth after being compressed and flattened is stably conveyed to the subsequent coating process under the rotation traction of the second compression roller 202, and the vertical linear motion of the first compression roller 201 ensures that the cloth is always in the best flattening and tensioning state during the whole process, which provides a key guarantee for obtaining a uniform and high-quality coating layer.

[0027] Embodiment 2: The basic content is the same as that of embodiment 1, and the difference is that: Please refer to Figures 2-3 In this embodiment, one of the racks 300 is provided with a first driving module 203, the output end of the first driving module 203 is provided with a first threaded rod 204, and the rack 300 is slidably provided with a moving part 205, and one end of the first threaded rod 204 away from the first driving module 203 is connected with one of the moving parts 205.

[0028] It should be noted that the first driving module 203 is connected with the control unit, and the control unit controls the output shaft of the first driving module 203 to rotate at a constant speed; the control unit and its working principle are well known to those skilled in the art, and will not be described in this embodiment. Preferably, the first driving module 203 is a servo motor.

[0029] The first pressure roller 201 is provided with a first shaft 206 at both ends, and the moving part 205 is rotationally connected with the first shaft 206 through a bearing seat.

[0030] The rack 300 is provided with a guide rail 207, and the moving part 205 is provided with a sliding groove 208 corresponding to the guide rail 207, and the guide rail 207 and the sliding groove 208 are in sliding connection.

[0031] Further, when the moving part 205 moves under the action of the driving part, the sliding groove 208 moves along the guide rail 207 in a precise straight line, and this matching mode effectively limits the radial deviation and torsion tendency of the moving part 205 in the movement process, ensuring the movement precision and stability of the first pressure roller 201 in the vertical adjustment process.

[0032] In addition, the other rack 300 is provided with a limiting rod 209 connected with the moving part 205. The other rack 300 is provided with a guide hole through which the limiting rod 209 penetrates, and the guide hole and the limiting rod 209 are in clearance fit.

[0033] It should be noted that the clearance fit between the limiting rod 209 and the guide hole not only ensures the smoothness of the movement, but also effectively balances the possible eccentric load of the two ends of the first pressure roller 201 in the movement process, ensuring the stability and accuracy of the whole adjustment process.

[0034] When it is necessary to adjust the position of the first pressure roller 201 to adapt to different thicknesses of the composite glass fiber cloth, the first driving module 203 is started to drive the first threaded rod 204 to rotate. Since the first threaded rod 204 is connected with the moving part 205 through threads, and the moving part 205 is in sliding fit with the guide rail 207 on the rack 300 through the sliding groove 208 thereon, the rotational movement of the first threaded rod 204 is accurately converted into the vertical straight line movement of the moving part 205. The moving part 205 drives the first shaft 206 and the first pressure roller 201 fixed thereon to move synchronously through the bearing seat, so as to realize the accurate adjustment of the distance between the first pressure roller 201 and the second pressure roller 202. This process can flexibly adapt to different thicknesses of the cloth and provide stable and adjustable pressing force for the cloth, effectively eliminating the wrinkles of the cloth and establishing appropriate conveying tension.

[0035] On the other side of the rack 300, the limiting rod 209 connected with the moving part 205 slides in the guide hole along with the lifting of the first pressure roller 201.

[0036] Example 3: The basic content is the same as that of Example 1, except that: Please refer to Figure 4The rack 300 in the embodiment is provided with a limiting part, and the limiting part is connected with the second compression roller 202. The limiting part comprises a third driving module 303 arranged on the rack 300. The output end of the third driving module 303 is provided with a second threaded rod 304. The second threaded rod 304 is arranged between the opposite sides of the two racks 300. The second threaded rod 304 is symmetrically provided with a sleeve 305. The outer side of the second compression roller 202 is symmetrically provided with a limiting ring 306 connected with the sleeve 305 in threaded connection.

[0037] It should be noted that the third driving module 303 is connected with a control unit. The control unit controls the uniform rotation of the output shaft of the third driving module 303. The control unit and its working principle are well known to those skilled in the art, and will not be described in this embodiment. Preferably, the third driving module 303 is a servo motor.

[0038] The outer side of the second threaded rod 304 is provided with threads in two opposite directions. The inner diameter of the limiting ring 306 is matched with the outer diameter of the second compression roller 202.

[0039] In application, when the composite glass fiber cloth has a tendency of transverse deviation during conveying, the third driving module 303 is started to drive the second threaded rod 304 to rotate. Because the outer side of the second threaded rod 304 is provided with threads in two opposite directions, and the symmetrically arranged sleeves 305 are matched with the threads, the rotational movement of the second threaded rod 304 can synchronously drive the two sleeves 305 to move linearly in the axial direction in opposite directions or in the same direction.

[0040] The sleeves 305 drive the limiting rings 306 connected therewith to move synchronously on the outer side of the second compression roller 202. By adjusting the distance between the two limiting rings 306, accurate guidance of the edges of the composite glass fiber cloth is formed. When the cloth deviates to one side, the limiting ring 306 on the corresponding side can guide the edge thereof, so that the cloth returns to the set center position.

[0041] Embodiment 4: Please refer to Figures 6-7 The coating equipment body 100 in the embodiment is provided with a pretreatment bin 101. The inner top wall of the pretreatment bin 101 is provided with a dust suction bin 102. The dust suction bin 102 is provided with an array type dust suction hole 103. The dust suction bin 102 is communicated with a connecting pipe 104. The connecting pipe 104 is communicated with the output end of an external dust collection fan.

[0042] In application, when the composite glass fiber cloth after being compressed and flattened enters the pretreatment bin 101, the external dust collection fan provides a stable negative pressure airflow to the dust suction bin 102 through the connecting pipe 104. The negative pressure airflow forms a uniformly distributed adsorption force field in the entire cloth width range through the array type dust suction hole 103 arranged at the bottom of the dust suction bin 102. In the process of passing through the pretreatment bin 101, the dust, fiber flocculation and other pollutants attached to the surface of the cloth are effectively sucked under the action of negative pressure, and the arrayed distribution of the dust suction holes 103 ensures the comprehensiveness and uniformity of the cleaning operation, avoiding the generation of cleaning dead angles.

[0043] Embodiment 5: A method for using a composite glass fiber cloth coating device, applied to the composite glass fiber cloth coating device in embodiments 1-4, the method for using comprises the following steps: S1: start the coating device body 100, adjust the distance between the first pressure roller 201 and the second pressure roller 202 to adapt to the cloth thickness; S2: start the second driving module 302 to drive the second pressure roller 202 to rotate and convey the composite glass fiber cloth; S3: during the flattening of the composite glass fiber cloth, adjust the transverse position of the second pressure roller 202 through the limiting part to prevent the composite glass fiber cloth from deviating; S4: after the composite glass fiber cloth is flattened, it enters the pretreatment bin 101 and removes the surface dust through the dust suction bin 102; S5: after the dust removal is completed, the coating treatment of the composite glass fiber cloth is started.

[0044] When applied, the first driving module 203 is started by the control unit to drive the first threaded rod 204 to rotate, and the rotary motion is converted into the vertical linear motion of the moving part 205, thereby driving the first pressure roller 201 to adjust the height, which realizes the accurate control of the gap between the first pressure roller 201 and the second pressure roller 202, enables the device to adapt to composite glass fiber cloths of different thicknesses, and establishes appropriate initial tension and compression force for the cloth; The second driving module 302 drives the second pressure roller 202 to actively rotate, providing a continuous and stable traction force for the composite glass fiber cloth after compression and flattening, and this active conveying mechanism ensures that the cloth maintains a constant linear speed during the entire processing process, avoiding tension fluctuations or cloth deformation caused by unstable conveying; During the cloth conveying process, the second threaded rod 304 is driven to rotate by the third driving module 303, and the bidirectional threaded structure is used to make the two sleeves 305 move synchronously towards or away from each other, thereby driving the limiting ring 306 to axially displace on the second pressure roller 202, and this dynamic adjustment mechanism can correct the transverse deviation of the cloth in real time, ensuring that the cloth always runs along the preset center line; When the dust collection fan is started, a uniform negative pressure is generated in the dust suction bin 102 through the connecting pipe 104, and the arrayed distribution of the dust suction holes 103 forms an effective adsorption field in the entire width range of the cloth, efficiently removing the dust, fiber flocculation and other pollutants on the surface of the cloth, and providing a clean substrate surface for the subsequent coating process; After the pretreatment of the foregoing steps, the composite glass fiber cloth has reached the ideal coating state, with stable tension, flat surface, accurate centering position and clean substrate surface, at this time into the coating equipment body 100 coating treatment, in order to obtain high quality coating products lay the foundation.

[0045] In summary, the working principle of the composite glass fiber cloth coating equipment is: Start the first drive module 203, drive the first threaded rod 204 to rotate, convert the rotary motion into the vertical linear motion of the moving part 205, so as to drive the first pressure roller 201 to adjust the height, this process realizes the accurate control of the gap between the first pressure roller 201 and the second pressure roller 202, so that the equipment can adapt to different thickness of composite glass fiber cloth, and establish appropriate initial tension and pressure for the cloth; The second drive module 302 drives the second pressure roller 202 to rotate actively, providing continuous and stable traction force for the composite glass fiber cloth after compression and flattening. This active conveying mechanism ensures that the cloth maintains a constant linear speed during the entire processing process, avoiding tension fluctuations or cloth deformation caused by unstable conveying. During the cloth conveying process, the third drive module 303 drives the second threaded rod 304 to rotate, and the bidirectional threaded structure makes the two sleeves 305 move synchronously towards or away from each other, driving the limiting ring 306 to displace axially on the second pressure roller 202. This dynamic adjustment mechanism can correct the lateral deviation of the cloth in real time, ensuring that the cloth always runs along the preset center line. When the dust collection fan is started, uniform negative pressure is generated in the dust collection chamber 102 through the connecting pipe 104, and the arrayed dust suction holes 103 form an effective adsorption field in the entire width range of the cloth, efficiently removing dust, fiber fluff and other pollutants on the surface of the cloth, providing a clean substrate surface for the subsequent coating process. After the pretreatment of the foregoing steps, the composite glass fiber cloth has reached the ideal coating state, with stable tension, flat surface, accurate centering position and clean substrate surface, at this time into the coating equipment body 100 coating treatment, in order to obtain high quality coating products lay the foundation.

[0046] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting, since the scope of the present application will be limited to the appended claims. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The singular forms "a", "an", and "the" include plural referents unless the context clearly dictates otherwise. It will be further understood that the terms "comprises" and / or "comprising", or "includes" and / or "including" when used herein, specify the presence of stated features, integers, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof. The term "about" when used before a numerical designation, has its ordinary meaning in the art, and denotes a range of values plus or minus 10% from the value used in this disclosure. The term "consisting essentially of" when used in the specification and claims, means the composition maintaining the essential insubstantial characteristics of a process, method, article, or apparatus claimed. The term "consisting of" means an integer of the recited elements, which does not include more than what is recited in the claim.

[0047] While the embodiments of the application have been shown and described herein, it is to be understood that the application is not limited to these embodiments. Rather, many modifications, changes and substitutions are intended to fall within the scope of the present application.

Claims

1. A composite glass fiber cloth coating device, characterized in that: Includes a control component (200) located at its inlet along the feeding direction of the coating equipment body (100); The control component (200) includes a first pressure roller (201) and a second pressure roller (202) distributed vertically upwards and downwards. A composite glass fiber cloth conveying channel is formed between the first pressure roller (201) and the second pressure roller (202) in the feeding direction. The first pressure roller (201) moves vertically linearly above the second pressure roller (202). A frame (300) is provided on both sides of the second pressure roller (202). The frame (300) is set on the coating equipment body (100). The first pressure roller (201) is slidably connected to the frame (300). A drive unit is provided on the frame (300), and the drive unit is used to drive the first pressure roller (201) to move vertically linearly.

2. The composite glass fiber cloth coating equipment according to claim 1, characterized in that: The frame (300) is provided with a first drive module (203), the output end of the first drive module (203) is provided with a first threaded rod (204), and a moving part (205) is slidably provided on the frame (300). The end of the first threaded rod (204) away from the first drive module (203) is connected to one of the moving parts (205).

3. The composite glass fiber cloth coating equipment according to claim 2, characterized in that: The first pressure roller (201) has a first shaft (206) at both ends, and the moving part (205) is rotatably connected to the first shaft (206) through a bearing seat.

4. The composite glass fiber cloth coating equipment according to claim 2, characterized in that: The frame (300) is provided with a guide rail (207), and the moving part (205) is provided with a groove (208) corresponding to the guide rail (207), and the guide rail (207) and the groove (208) are slidably connected.

5. The composite glass fiber cloth coating equipment according to claim 1, characterized in that: Another frame (300) is provided with a limit rod (209), which is connected to the moving part (205); Another frame (300) has a guide hole through which the limiting rod (209) passes, and the guide hole is clearance-fitted with the limiting rod (209).

6. The composite glass fiber cloth coating equipment according to claim 1, characterized in that: The second pressure roller (202) is provided with a second shaft (301), and the frame (300) is provided with a second drive module (302). The output end of the second drive module (302) is connected to the second shaft (301).

7. The composite glass fiber cloth coating equipment according to claim 1, characterized in that: The frame (300) is provided with a limiting part, and the limiting part is connected to the second pressure roller (202). The limiting part includes a third drive module (303) provided on the frame (300). The output end of the drive module (303) is provided with a second threaded rod (304), and the second threaded rod (304) is provided between the two frames (300) on opposite sides. The second threaded rod (304) is symmetrically provided with sleeves (305) that are threadedly connected to it. The outer side of the second pressure roller (202) is symmetrically provided with limiting rings (306) that are connected to the sleeves (305).

8. The composite glass fiber cloth coating equipment according to claim 7, characterized in that: The outer side of the second threaded rod (304) is provided with two threads in opposite directions, and the inner diameter of the limiting ring (306) is adapted to the outer diameter of the second pressure roller (202).

9. The composite glass fiber cloth coating equipment according to claim 1, characterized in that: The coating equipment body (100) is provided with a pretreatment chamber (101), and the inner top wall of the pretreatment chamber (101) is provided with a dust collection chamber (102). The dust collection chamber (102) is provided with an array of dust collection holes (103). The dust collection chamber (102) is connected to a connecting pipe (104), and the connecting pipe (104) is connected to the output end of an external dust collection fan.

10. A method of using a composite glass fiber cloth coating equipment, characterized in that: The method of using the composite glass fiber cloth coating equipment as described in any one of claims 1-9 includes the following steps: S1: Start the coating equipment body (100), and adjust the distance between the first pressure roller (201) and the second pressure roller (202) to adapt to the fabric thickness; S2: Start the second drive module (302) to drive the second pressure roller (202) to rotate and convey the composite glass fiber cloth; S3: During the flattening process of the composite fiberglass cloth, the lateral position of the second pressure roller (202) is adjusted by the limiting part to prevent the composite fiberglass cloth from shifting. S4: After the composite fiberglass cloth is flattened, it enters the pretreatment chamber (101) and the surface dust is removed by the dust collection chamber (102); S5: After dust removal, begin coating the composite fiberglass cloth.

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