Gluing and printing process for high-temperature-resistant insulating protective film

Abstract

The invention relates to the technical field of gluing printing, in particular to a high-temperature-resistant insulating protective film gluing printing technology which comprises a PET film and a PI film, the PET film and the PI film are connected through UV gluing, and the high-temperature-resistant insulating protective film gluing printing technology is implemented through gluing printing equipment. The PET film and the PI film are connected through the UV gluing technology, the PET film is known as good mechanical strength and weather resistance, the PI film has high temperature resistance and insulation performance, the high-temperature-resistant insulation protective film is obtained through combination of the PET film and the PI film, and the stability in the electrical insulation and high-temperature environment is excellent. In addition, PI has the characteristic of high temperature resistance, PET has the characteristic of insulation, and the PI film and the PET film are tightly laminated through UV glue coating, so that the product has the double-layer characteristics of fire prevention and insulation.

Description

Technical Field

[0001] The invention relates to the technical field of gluing and printing, in particular to a gluing and printing process for a high temperature resistant insulating protective film. Background Art

[0002] Electronic high temperature resistant insulating protective film is widely used for packaging and fixing of electronic components. In complex electronic systems, various components need to be precisely arranged and reliably packaged to prevent interference and damage from the external environment. With its excellent insulation performance and high temperature resistance, this protective film can effectively isolate and protect components and improve the stability and reliability of the entire system. In the manufacturing process of electronic products, high temperature resistant insulating protective film is also often used as a temporary or permanent protective layer. For example, during the production and processing of circuit boards, the protective film can be covered on the circuit board to prevent sparks and spatters generated during welding, cutting and other processes from damaging the circuit board. At the same time, it can also effectively prevent pollutants such as dust and moisture from invading the circuit board to ensure product quality.

[0003] The existing insulating protective film generally cannot have both high temperature resistance and fireproofing functions and insulation functions in terms of structure. In actual use, it has poor stability and durability. In addition, the preparation process is relatively complicated. It is difficult to set a pattern on the protective film. Therefore, it is necessary to make new improvements to the existing protective film structure and preparation. Summary of the invention

[0004] To solve the above problems, the present invention adopts UV bonding technology to connect PET film and PI film. PET film is known for its good mechanical strength and weather resistance, while PI film is known for its excellent high temperature resistance and insulation performance. The combination of the two obtains a high temperature resistant insulating protective film, which is an excellent high temperature resistant insulating protective film bonding and printing process in terms of electrical insulation and stability in high temperature environment.

[0005] The technical scheme adopted by the present invention is: a high-temperature resistant insulating protective film gluing and printing process, the high-temperature resistant insulating protective film includes a PET film and a PI film, the PET film and the PI film are connected by UV gluing, and the PET film or the PI film is provided with a printed mark; the high-temperature resistant insulating protective film gluing and printing process is implemented by a gluing and printing device, the gluing and printing device includes a PI feeding mechanism, a PET feeding mechanism, a coating mechanism, a laminating mechanism, a curing mechanism, a printing mechanism and a receiving mechanism, the coating mechanism includes a coating frame, a roller coating assembly, a micro-concave roller pressing assembly and a secondary roller pressing assembly, the roller coating assembly and the micro-concave roller pressing assembly are respectively arranged on the upper and lower sides of the coating frame, and the secondary roller pressing assembly is arranged The rear of the roller coating assembly; the printing mechanism includes a coloring spraying assembly and a pattern printing assembly, and the coloring spraying assembly and the pattern printing assembly are arranged in sequence; the PI discharge mechanism is used for discharging the PI film and feeding the PI film to the coating mechanism, the coating mechanism is used for coating UV glue on the PI film, the PET discharge mechanism is used for discharging the PET film and feeding it to the micro-concave roller pressing assembly, the secondary roller pressing assembly is used to flatten the UV glue on the PI film, the pressing mechanism is used to press and glue the PI film and the PET film to form a high-temperature resistant insulating protective film, the curing mechanism is used to cure the high-temperature resistant insulating protective film after gluing to cure the UV glue, and the pattern printing assembly prints a pattern on the PI film; The printing process includes the following steps: Step S1, film material discharge: the PI film is tension-stretched by the PI discharge mechanism, and then fed to the roller coating assembly after tension-stretching, and the roller coating assembly coats UV glue on the PI film, and at the same time, the PET film is tension-stretched by the PET discharge mechanism, and then discharged to the micro-concave roller pressing assembly after tension-stretching, and micro-concave roller pressing assembly is used to roll out micro-grooves on the bonding surface of the PET film; Step S2, bonding and connecting the protective films: After the PI film is coated, the UV glue is flattened by a secondary rolling assembly, and then the flattened film is transported to a laminating mechanism; at the same time, the PET film is rolled by a micro-concave rolling assembly and then sent to a laminating mechanism, and the PI film and the PET film are rolled by the laminating mechanism so that the two are bonded and connected by UV glue, and the bonding area is increased by the micro-grooves during the bonding process; Step S3, curing treatment: a curing chamber is provided in the curing mechanism, and a plurality of curing guide rollers are provided in the curing chamber for transmitting and curing the UV glue of the high temperature resistant insulating protective film after gluing; Step S4, color printing: after the curing is completed, a color layer is sprayed on the surface of the PI film by a color spraying assembly; the color spraying assembly sprays nano-scale powder particles onto the PI film to form a base color of the pattern on the PI film; Step S5, pattern printing: after the spraying and forming of the coloring layer is completed, the protective film enters the pattern printing component, and the pattern printing component prints a mark on the coloring layer. The pattern printing is performed by laser printing or roller printing; Step S6, conveying and collecting: after the pattern printing is completed, the pattern is fixed through conveying and then reeled up through the collecting mechanism.

[0006] A further improvement to the above scheme is that a substrate layer is arranged between the PET film and the PI film, and the substrate layer is a mesh fiber substrate layer, and the mesh fiber substrate layer is used to compositely connect the PET film and the PI film; the gluing printing equipment also includes a substrate unloading mechanism, and the substrate unloading mechanism is used to discharge the substrate layer, and discharge the substrate layer to the secondary rolling assembly, and the substrate layer is connected to the PI layer through the secondary rolling assembly, and the two are connected by UV gluing.

[0007] A further improvement to the above scheme is that the PET film is provided with a micro-concave composite layer, the micro-concave composite layer is arranged between the PET film and the PI film, and the micro-concave composite layer is a BOPE film; the lamination printing equipment is provided with a micro-concave composite film discharge mechanism, and the micro-concave composite film discharge mechanism is used to discharge the BOPE film to the micro-concave rolling assembly, and the BOPE film is hot-rolled and attached to the PET film through the micro-concave rolling assembly, and micro-grooves are formed on the PET film.

[0008] A further improvement to the above scheme is that in step S1, when the PET film is rolled by the micro-concave rolling assembly, the micro-concave composite film feeding mechanism feeds the BOPE film into the micro-concave rolling assembly, and the BOPE film is hot-rolled by the micro-concave rolling assembly.

[0009] A further improvement to the above scheme is that in step S2, when the PI film is tension-stretched by the PI unloading mechanism and fed into the roller coating assembly and into the secondary rolling assembly, the substrate is unloaded through the substrate unloading mechanism, and the substrate layer is roll-connected with the PI layer through the secondary rolling assembly.

[0010] A further improvement to the above scheme is that a punching assembly is provided at the front end of the micro-concave rolling assembly, and the punching assembly is used to roll and punch holes in the BOPE film, and the punched BOPE film is conveyed toward the micro-concave rolling assembly; the punching assembly includes a hollow guide roller with holes and a needle roller tangent to the outer diameter of the hollow guide roller, and the needle roller is provided with a needle head, and the needle head corresponds to the hole of the hollow guide roller to punch holes in the BOPE film passing through.

[0011] A further improvement to the above scheme is that the PI unloading mechanism includes a PI unloading roller, a PI unloading correction component, a PI unloading guide component and a PI unloading stretching component. The PI unloading roller is used to unwind the PI material and send it to the PI unloading correction component to correct the PI material, and then enter the PI unloading guide component for guidance. The PI unloading stretching component is used to stretch the PI material, and after stretching, it is sent to the roller coating component for coating.

[0012] A further improvement to the above scheme is that the PET unloading mechanism includes a PET unloading roller, a PET unloading correction component, a PET unloading guide component and a PET unloading stretching component. The PET unloading roller is used to unwind the PET material and send it to the PET unloading correction component to correct the PET material, and then enter the PET unloading guide component for guidance. The PET unloading stretching component is used to stretch the PET material and then send it to the micro-concave rolling component for rolling.

[0013] A further improvement to the above scheme is that the roller coating assembly includes a pressing upper roller and a coating lower roller, the outer diameter of the coating lower roller is tangent to the transfer roller, the transfer roller is provided with a coating module, the coating module is used to apply the coating on the transfer roller, the transfer roller transfers the coating to the coating lower roller, the outer diameter of the coating lower roller is tangent to the outer diameter of the pressing upper roller, so as to roller-coat the passing PI film with UV glue.

[0014] A further improvement to the above scheme is that the micro-concave rolling assembly includes a flat pressing roller and a micro-concave pressing roller, the flat pressing roller is tangent to the outer diameter of the micro-concave pressing roller, the outer diameter of the micro-concave pressing roller is provided with a micro-concave tooth block, and the micro-concave tooth block is used to roll one side of the PTE film to form micro grooves.

[0015] A further improvement to the above scheme is that the secondary rolling assembly includes a pre-pressing roller group, a flattening roller group and a lead-out roller group, the pre-pressing roller group is used to guide the pre-pressing of the PI film and the substrate layer and then feed them into the flattening roller group, the flattening roller group includes two groups of flattening circular rollers with tangent outer diameters, the flattening circular rollers are used to flatten and connect the PI film and the substrate layer, and the lead-out roller group is used to lead out the flattened PI film.

[0016] A further improvement to the above scheme is that the laminating mechanism includes two sets of laminating rollers with tangent outer diameters, the laminating rollers are provided with heating elements, and the laminating rollers are used to roll-press and glue the PI film and the PET film together, and the two are connected in the middle by UV glue to form a whole.

[0017] A further improvement to the above scheme is that the curing chamber is provided with a curing light module and a curing light guide module, a plurality of curing guide rollers are arranged at intervals, and the curing light module is arranged between two adjacent curing guide rollers to cure the UV glue.

[0018] A further improvement to the above scheme is that the coloring spray assembly includes a coloring stretching module, a spraying support module, a spray box, a cold spray module and a coloring flattening module; the coloring stretching module is used to stretch and flatten the protective film for transmission in the spray box, the spraying support module is arranged in the spray box, and the cold spray module is arranged on the spray box and opposite to the spraying support module; the cold spray module is used to spray and attach nano-scale ceramic powder to the PI film to form a coloring layer, and the coloring flattening module is located on the rear side of the spray box to roll the sprayed coloring layer.

[0019] A further improvement to the above scheme is that the pattern printing assembly includes a printing roller group, a coloring roller group, a guide support roller group and a guide curing roller group, the guide support roller group is tangent to the outer diameter of the printing roller group, the printing roller group is provided with a printing pattern, the coloring roller group is used to color the printing pattern, and the guide curing roller group is used to cure the printing pattern.

[0020] A further improvement to the above scheme is that the material receiving mechanism is provided with a material receiving guide roller, which is used to receive the protective film with the printed pattern, and the material receiving mechanism is provided with a winding roller group, which is used to wind up the protective film.

[0021] The beneficial effects of the present invention are: Compared with the existing insulating protective film for electronic products, the present invention connects the PET film and the PI film by using UV bonding technology. This process realizes efficient and seamless combination between the two high-performance materials. UV glue cures rapidly under ultraviolet light, which not only greatly shortens the production cycle, but also ensures the strength and stability of the bonding layer. PET film is known for its good mechanical strength and weather resistance, while PI film is known for its excellent high temperature resistance and insulation performance. The combination of the two obtains a high temperature resistant insulating protective film, which performs well in electrical insulation and stability under high temperature environments, meeting the stringent requirements of high-end electronic equipment for material performance. The design of the coating mechanism is a highlight of the process, especially the upper and lower layout of the roller coating assembly and the micro-concave roller pressing assembly, as well as the setting of the secondary roller pressing assembly, which ensures that the UV glue can be evenly and accurately coated on the surface of the PI film. This design effectively avoids the waste of glue liquid and improves the utilization rate of materials. At the same time, it also ensures the flatness and consistency of the bonding surface, laying a solid foundation for the subsequent lamination and printing processes. The application of micro-concave roller pressing technology further improves the accuracy and uniformity of coating, allowing UV glue to better penetrate into the tiny pores of the PI film and enhance the bonding strength. The design of the printing mechanism fully considers the demand for diversified patterns and colors. The sequential arrangement of the coloring spraying component and the pattern printing component makes it possible to print rich colors and fine patterns on the high-temperature resistant insulation protective film. This feature not only meets the personalized needs of the appearance design of electronic products, but also provides convenience for the addition of information such as brand logos and anti-counterfeiting logos. By adjusting the parameters of spraying and printing, it is easy to achieve fast switching of different colors and different patterns, greatly improving the market competitiveness of the product. The entire gluing printing process is implemented by highly integrated gluing printing equipment, from PI unloading, PET unloading, to coating, lamination, curing, printing, and finally to material collection. Each link is closely connected to form an efficient and continuous automated production line. This design not only significantly improves production efficiency and reduces labor costs, but also realizes real-time monitoring and precise control of the production process through the built-in sensors and control systems of the equipment. This not only ensures the stability of product quality, but also facilitates the collection and analysis of production data, and provides strong support for the intelligent management and continuous improvement of enterprises. Thanks to its excellent performance and flexible customization capabilities, the high-temperature resistant insulating protective film gluing and printing process has shown broad application prospects in many fields. Whether it is the battery pack packaging of new energy vehicles, the protection of electronic components of aerospace vehicles, or the shell insulation of high-end electronic consumer products, this process can provide reliable material solutions. With the continuous maturity of technology and the further reduction of costs, its market potential will be further released, injecting new vitality into the upgrading and transformation of related industries.

[0022] In summary, the high-temperature resistant insulating protective film gluing and printing process and its supporting equipment, with their high efficiency, precision and environmental protection, not only improve the comprehensive performance of the product, but also make important contributions to the technological progress and sustainable development of the industry.

[0023] In the printing process, at the film material discharge stage (step S1), the PI film and the PET film are tensioned and stretched by the PI discharge mechanism and the PET discharge mechanism respectively, ensuring the flatness and stability of the film material, laying a solid foundation for subsequent processing. The roller coating component evenly applies UV glue on the PI film, and the micro-concave roller pressing component accurately rolls out micro grooves on the PET film. This innovative design not only increases the bonding area, but also improves the firmness and uniformity of the bonding, providing a strong guarantee for the high performance of the protective film. Entering the protective film bonding and connection stage (step S2), the secondary roller pressing component flattens the UV glue to ensure the uniform distribution of the glue layer and further improve the bonding effect. The pressing mechanism rolls the PI film and the PET film tightly together through precise control, achieving a firm bonding between the two. At the same time, the addition of micro grooves effectively increases the friction of the bonding interface and improves the peeling strength and durability of the protective film. The curing treatment stage (step S3) is a key link to ensure the stable performance of the protective film. The curing chamber and multiple curing guide rollers set in the curing mechanism provide an ideal environment for the transmission and curing of UV glue, ensuring that the glue layer can be fully cured, thereby improving the high temperature resistance and insulation performance of the protective film. The optimization of this step enables the protective film to maintain good stability and reliability under extreme conditions. In the coloring and printing stage (step S4), the nano-scale powder particles are evenly sprayed on the PI film through the coloring spraying component, which not only achieves precise control of the pattern background color, but also gives the protective film good color saturation and wear resistance. The use of nano-scale powder particles has improved the fineness and glossiness of the protective film, making it more ornamental. In the pattern printing stage (step S5), laser printing or roller printing technology is used to achieve high-precision printing and diversified design of the pattern. These two printing methods are not only fast and efficient, but also can meet the personalized needs of different customers for patterns, and enhance the market competitiveness of the product. Finally, in the transmission and receiving stage (step S6), the flatness and neatness of the finished protective film are ensured by the precise control of the transmission mechanism and the stable winding of the receiving mechanism. The optimization of this step not only improves production efficiency, but also reduces the scrap rate, providing customers with a better product experience. The printing process solution significantly improves the production efficiency, quality, functionality and aesthetics of the high temperature resistant insulation protective film through a series of innovative designs and optimization measures. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic structural diagram of the high temperature resistant insulating protective film of the present invention; Figure 2It is a schematic structural diagram of another embodiment of the high temperature resistant insulating protective film of the present invention; Figure 3 The figure is a schematic diagram of the preparation process of the high temperature resistant insulating protective film of the present invention; Figure 4 It is a three-dimensional schematic diagram of the gluing printing device of the present invention; Figure 5 for Figure 4 A three-dimensional schematic diagram of another perspective of the gluing printing equipment; Figure 6 for Figure 4 Schematic diagram of the main view of the gluing printing equipment Figure 7 for Figure 4 Schematic diagram of PI unloading mechanism and PET unloading mechanism of the medium-gluing printing equipment; Figure 8 for Figure 4 Schematic diagram of the coating mechanism of the mid-gluing printing equipment; Fig. 9 for Figure 4 Schematic diagram of the curing mechanism of the mid-gluing printing device; Fig.10 for Figure 4 Schematic diagram of the printing mechanism of the medium-gluing printing device; Fig.11 It is a schematic diagram of the process of gluing and printing the high temperature resistant insulating protective film of the present invention.

[0025] Description of reference numerals: high temperature resistant insulating protective film 10, PET film 101, micro-dimpled composite layer 1011, PI film 102, colored layer 1021, substrate layer 103; PI unloading mechanism 1, PI unloading roller 11, PI unloading deviation correction component 12, PI unloading guide component 13, PI unloading stretching component 14; PET unloading mechanism 2, PET unloading roller 21, PET unloading deviation correction component 22, PET unloading guide component 23, PET unloading stretching component 24; Coating mechanism 3, coating frame 31, roller coating assembly 32, pressing upper roller 321, coating lower roller 322, transfer roller 323, coating module 324, micro-concave roller pressing assembly 33, flattening roller 331, micro-concave roller 332, micro-concave tooth block 333, secondary roller pressing assembly 34, pre-pressing roller group 341, flattening roller group 342, lead-out roller group 343, flattening round roller 344, punching assembly 35, hollow guide roller 351, needle roller 352, needle head 353; Lamination mechanism 4, lamination roller 41; Curing mechanism 5, curing chamber 51, curing light module 511, curing light guide module 512, curing guide roller 52; Printing mechanism 6, coloring spray assembly 61, coloring stretching module 611, spraying support module 612, spraying box 613, cold spray module 614, coloring flattening module 615, pattern printing assembly 62, printing roller group 621, coloring roller group 622, guide support roller group 623, guide curing roller group 624; The material receiving mechanism 7, the material receiving guide roller 71, the winding roller group 72, the substrate unloading mechanism 8, and the micro-concave composite film unloading mechanism 9. DETAILED DESCRIPTION

[0026] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0027] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which the present invention belongs. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. Figure 1 to Figure 11As shown, in one embodiment of the present invention, a high-temperature resistant insulating protective film gluing and printing process is involved, the high-temperature resistant insulating protective film 10 includes a PET film 101 and a PI film 102, the PET film 101 and the PI film 102 are connected by UV gluing, and the PET film 101 or the PI film 102 is provided with a printed mark; the high-temperature resistant insulating protective film 10 gluing and printing process is implemented by a gluing and printing device, the gluing and printing device includes a PI feeding mechanism 1, a PET feeding mechanism 2, a coating mechanism 3, a laminating mechanism 4, a curing mechanism 5, a printing mechanism 6 and a receiving mechanism 7, the coating mechanism 3 includes a coating frame 31, a roller coating assembly 32, a micro-concave rolling assembly 33 and a secondary rolling assembly 34, the roller coating assembly 32 and the micro-concave rolling assembly 33 are respectively arranged on the upper and lower sides of the coating frame 31, and the secondary rolling assembly 34 is arranged on the roller coating frame 31. The coating assembly 32 is located behind the printing mechanism 6; the printing mechanism 6 includes a coloring spraying assembly 61 and a pattern printing assembly 62, and the coloring spraying assembly 61 and the pattern printing assembly 62 are arranged in sequence; the PI unloading mechanism 1 is used to unload the PI film 102, and feed the PI film 102 to the coating mechanism 3, and the coating mechanism 3 is used to coat the PI film 102 with UV glue, the PET unloading mechanism 2 is used to unload the PET film 101, and feed it to the micro-concave rolling assembly 33, the secondary rolling assembly 34 is used to flatten the UV glue on the PI film 102, the pressing mechanism 4 is used to press and glue the PI film 102 and the PET film 101 to form a high-temperature resistant insulating protective film 10, the curing mechanism 5 is used to cure the high-temperature resistant insulating protective film 10 after gluing to cure the UV glue, and the pattern printing assembly 62 prints a pattern on the PI film 102. The present invention connects the PET film 101 and the PI film 102 by using UV gluing technology, and the process realizes efficient and seamless combination between two high-performance materials. UV glue cures quickly under ultraviolet light, which not only greatly shortens the production cycle, but also ensures the strength and stability of the bonding layer. PET film 101 is known for its good mechanical strength and weather resistance, while PI film 102 is known for its excellent high temperature resistance and insulation performance. The combination of the two results in a high temperature resistant insulation protective film 10, which performs well in electrical insulation and stability under high temperature environments, meeting the stringent requirements of high-end electronic equipment for material performance. The design of the coating mechanism 3 is a highlight of the process, especially the upper and lower layout of the roller coating component 32 and the micro-concave roller pressing component 33, as well as the setting of the secondary roller pressing component 34, which ensures that the UV glue can be evenly and accurately coated on the surface of the PI film 102. This design effectively avoids the waste of glue liquid, improves the material utilization rate, and also ensures the flatness and consistency of the bonding surface, laying a solid foundation for the subsequent lamination and printing processes. The application of micro-concave roller pressing technology further improves the accuracy and uniformity of the coating, allowing the UV glue to better penetrate into the tiny pores of the PI film 102 and enhance the bonding strength.The design of the printing mechanism 6 fully considers the demand for diversified patterns and colors. The sequential arrangement of the coloring spraying component 61 and the pattern printing component 62 makes it possible to print with rich colors and fine patterns on the high temperature resistant insulating protective film 10. This feature not only meets the personalized needs of the appearance design of electronic products, but also provides convenience for adding information such as brand logos and anti-counterfeiting logos. By adjusting the parameters of spraying and printing, it is easy to achieve fast switching of different colors and different patterns, greatly improving the market competitiveness of the product. The entire gluing printing process is implemented by highly integrated gluing printing equipment, from PI discharge, PET discharge, to coating, lamination, curing, printing, and until material collection, each link is closely connected to form an efficient and continuous automated production line. This design not only significantly improves production efficiency and reduces labor costs, but also realizes real-time monitoring and precise control of the production process through the built-in sensors and control systems of the equipment. This not only ensures the stability of product quality, but also facilitates the collection and analysis of production data, and provides strong support for the intelligent management and continuous improvement of enterprises. Thanks to its excellent performance and flexible customization capabilities, the high-temperature resistant insulation protective film 10 gluing and printing process has shown broad application prospects in many fields. Whether it is the battery pack packaging of new energy vehicles, the protection of electronic components of aerospace vehicles, or the shell insulation of high-end electronic consumer products, this process can provide reliable material solutions. With the continuous maturity of technology and the further reduction of costs, its market potential will be further released, injecting new vitality into the upgrading and transformation of related industries.

[0029] In summary, the high temperature resistant insulating protective film 10 gluing and printing process and its supporting equipment, with its high efficiency, precision and environmental protection characteristics, not only improve the comprehensive performance of the product, but also make important contributions to the technological progress and sustainable development of the industry.

[0030] The printing process includes the following steps: step S1, film material discharge: the PI film 102 is tension-stretched by the PI discharge mechanism 1, and is fed to the roller coating assembly 32 after tension-stretching, and the roller coating assembly 32 applies UV glue on the PI film 102, and at the same time, the PET discharge mechanism 2 tension-stretches the PET film 101, and discharges it to the micro-concave roller pressing assembly 33 after tension-stretching, and micro-concave roller pressing assembly 33 is used to roll out micro-concave grooves on the gluing surface of the PET film 101; step S2, protective film gluing connection: after the PI film 102 is coated, the UV glue is flattened by the secondary roller pressing assembly 34, and the flattened UV glue is transported to the laminating mechanism 4; at the same time, after the micro-concave roller pressing, the PET film 101 is fed to the laminating mechanism 4, and the PI film 102 and the PET film 101 are rolled by the laminating mechanism 4, so that the two are bonded and connected by UV glue, and the micro-concave grooves are increased during the joint process. Add gluing area; Step S3, curing treatment: a curing chamber 51 is set in the curing mechanism 5, and a plurality of curing guide rollers 52 are arranged in the curing chamber 51, which are used to transmit and cure the UV glue of the high temperature resistant insulating protective film 10 after gluing; Step S4, coloring printing: after the curing is completed, a coloring layer 1021 is sprayed on the surface of the PI film 102 by the coloring spraying component 61; the coloring spraying component 61 sprays and attaches nano-scale powder particles to the PI film 102 to form a base color of the pattern on the PI film 102; Step S5, pattern printing: after the spraying and forming of the coloring layer 1021 is completed, the protective film enters the pattern printing component 62, and the pattern printing component 62 prints a mark on the coloring layer 1021. The pattern printing adopts laser printing or roller printing; Step S6, transmission and material collection: after the pattern printing is completed, the pattern is fixed after transmission and then rolled up by the material collection mechanism 7.

[0031] In the above embodiment, in the film material discharge stage (step S1), the PI film 102 and the PET film 101 are tension-stretched by the PI discharge mechanism 1 and the PET discharge mechanism 2 respectively, ensuring the flatness and stability of the film material, and laying a solid foundation for subsequent processing. The roller coating component 32 evenly applies UV glue on the PI film 102, and the micro-concave rolling component 33 accurately rolls out micro-grooves on the PET film 101. This innovative design not only increases the bonding area, but also improves the firmness and uniformity of the bonding, providing a strong guarantee for the high performance of the protective film. Entering the protective film bonding connection stage (step S2), the secondary rolling component 34 flattens the UV glue to ensure the uniform distribution of the glue layer and further improve the bonding effect. The pressing mechanism 4 rolls the PI film 102 and the PET film 101 tightly together through precise control, achieving a firm bonding between the two. At the same time, the addition of micro-grooves effectively increases the friction of the bonding interface and improves the peeling strength and durability of the protective film. The curing treatment stage (step S3) is a key link to ensure the stability of the performance of the protective film. The curing chamber 51 and multiple curing guide rollers 52 set in the curing mechanism 5 provide an ideal environment for the transmission and curing of the UV glue, ensuring that the glue layer can be fully cured, thereby improving the high temperature resistance and insulation performance of the protective film. The optimization of this step enables the protective film to maintain good stability and reliability under extreme conditions. In the coloring and printing stage (step S4), the nano-scale powder particles are evenly sprayed on the PI film 102 through the coloring spraying component 61, which not only achieves precise control of the pattern background color, but also gives the protective film good color saturation and wear resistance. The use of nano-scale powder particles further enhances the fineness and glossiness of the protective film, making it more ornamental. The pattern printing stage (step S5) adopts laser printing or roller printing technology to achieve high-precision printing and diversified design of the pattern. These two printing methods are not only fast and efficient, but also can meet the personalized needs of different customers for patterns, and enhance the market competitiveness of the product. Finally, in the transmission and receiving stage (step S6), the flatness and neatness of the finished protective film are ensured through the precise control of the transmission mechanism and the stable winding of the receiving mechanism 7. The optimization of this step not only improves the production efficiency, but also reduces the scrap rate, providing customers with a better product experience. The printing process solution significantly improves the production efficiency, quality, functionality and aesthetics of the high temperature resistant insulation protective film 10 through a series of innovative designs and optimization measures.

[0032] See also Figure 8As shown, a substrate layer 103 is arranged between the PET film 101 and the PI film 102, and the substrate layer 103 is a mesh fiber substrate layer 103, and the mesh fiber substrate layer 103 is used to compositely connect the PET film 101 and the PI film 102; the gluing printing equipment also includes a substrate feeding mechanism 8, and the substrate feeding mechanism 8 is used to discharge the substrate layer 103, and discharge the substrate layer 103 to the secondary rolling assembly 34, and the substrate layer 103 is connected to the PI layer through the secondary rolling assembly 34, and the two are connected by UV gluing. In this embodiment, specifically, the mesh fiber substrate layer 103 is used as an innovative composite connection medium, and its unique mesh structure can effectively enhance the bonding force between the PET film 101 and the PI film 102. This structure not only provides a larger contact area, but also realizes a close connection between the two film materials through the interweaving of fibers. Compared with the traditional composite method, this solution has a significant improvement in connection strength, thereby ensuring the stable performance of the high temperature resistant protective film in extreme temperature environments. In the gluing printing process, the introduction of the substrate feeding mechanism 8 further improves production efficiency and precision. The mechanism can accurately control the feeding speed and tension of the substrate layer 103, ensuring that the substrate layer 103 remains flat and undamaged during the transmission process. Subsequently, the secondary rolling assembly 34 uses precise rolling technology to tightly combine the substrate layer 103 with the PI layer. In this process, the use of UV gluing connection not only speeds up the curing speed, but also ensures the strength and weather resistance of the connection part. Not only does it achieve efficient and stable connection between materials, but it also significantly improves the high temperature resistance and overall quality of the product.

[0033] The PET film 101 is provided with a micro-concave composite layer 1011, which is provided between the PET film 101 and the PI film 102, and the micro-concave composite layer 1011 is a BOPE film; the laminating printing device is provided with a micro-concave composite film feeding mechanism 9, which is used to feed the BOPE film to the micro-concave roller pressing assembly 33, and the BOPE film is hot-rolled and attached to the PET film 101 through the micro-concave roller pressing assembly 33, and micro-grooves are formed on the PET film 101. In this embodiment, as a high-performance material, the BOPE film not only has excellent heat resistance and chemical corrosion resistance, but also exhibits extraordinary adhesion performance and morphological stability during the laminating printing process due to its unique micro-concave structure design. In the configuration of the laminating printing device, the introduction of the micro-concave composite film feeding mechanism 9 ensures the accurate and efficient delivery of the BOPE film. The design of this mechanism fully considers the material properties and process requirements, and lays a solid foundation for the subsequent laminating process by accurately controlling the feeding speed and tension. Subsequently, the BOPE film is subjected to a hot rolling process by the micro-concave rolling assembly 33. This process utilizes the combined effects of high temperature and pressure to cause the BOPE film to adhere tightly and evenly to the surface of the PET film 101, and to form a series of micro grooves on the surface. These micro grooves not only enhance the bonding force between the PET film 101 and the BOPE film, but also further enhance the structural strength and heat resistance of the entire high temperature resistant protective film.

[0034] In step S1, when the PET film 101 is rolled by the micro-concave rolling assembly 33, the micro-concave composite film unloading mechanism 9 unloads the BOPE film into the micro-concave rolling assembly 33, and the BOPE film is hot-rolled by the micro-concave rolling assembly 33. In step S2, when the PI unloading mechanism 1 tension-stretches the PI film 102 into the roller coating assembly 32 and enters the secondary rolling assembly 34, the substrate is unloaded by the substrate unloading mechanism 8, and the substrate layer 103 is roll-connected with the PI layer by the secondary rolling assembly 34. Specifically, the front end of the micro-concave rolling assembly 33 is provided with a punching assembly 35, and the punching assembly 35 is used to roll and punch holes in the BOPE film, and convey the punched BOPE film toward the micro-concave rolling assembly 33; the punching assembly 35 includes a hollow guide roller 351 with holes and a needle roller 352 tangent to the outer diameter of the hollow guide roller 351, and the needle roller 352 is provided with a needle head 353, and the needle head 353 corresponds to the hole of the hollow guide roller 351 to punch holes in the BOPE film passing through. In this embodiment, in step S1, the use of the micro-concave rolling assembly 33 ensures that the BOPE film can obtain a uniform and dense bonding layer during the hot rolling process. The BOPE film, which is precisely controlled by the micro-concave composite film discharge mechanism 9, enters the micro-concave rolling assembly 33, and not only achieves effective bonding with the PET film 101, but also enhances the mechanical strength of the bonding surface through the micro-concave design. In addition, the setting of the punching component 35 utilizes the precise cooperation of the hollow guide roller 351 with holes and the needle roller 352 to accurately punch holes in the BOPE film. This innovative step not only improves the air permeability of the film, but also promotes the removal of bubbles during the bonding process, further improving the bonding quality. Entering step S2, after the PI film 102 is stretched by tension, it is sent to the secondary rolling component 34 together with the substrate layer 103 released by the substrate discharge mechanism 8. This process not only ensures the close fit between the PI film 102 and the substrate layer 103, but also achieves a firm bond between the multilayer materials through the high-precision processing of the secondary rolling component 34. This multi-level composite structure not only enhances the weather resistance and mechanical strength of the high-temperature resistant protective film, but also ensures its stability in extreme environments. The high-temperature resistant protective film gluing and printing process combining micro-concave rolling and punching components 35 not only improves production efficiency, but also significantly improves the comprehensive performance of the product, including stronger bonding strength, better air permeability and higher processing accuracy, providing a more reliable technical guarantee for the production of high-temperature resistant protective films.

[0035] See also Figure 7As shown, the PI unloading mechanism 1 includes a PI unloading roller 11, a PI unloading deviation correction component 12, a PI unloading guide component 13 and a PI unloading stretching component 14. The PI unloading roller 11 is used to unwind the PI material and feed it to the PI unloading deviation correction component 12 to correct the PI material, and then enter the PI unloading guide component 13 for guidance. The PI unloading stretching component 14 is used to stretch the PI material and then feed it to the roller coating component 32 for coating after stretching. Specifically, the PET unloading mechanism 2 includes a PET unloading roller 21, a PET unloading deviation correction component 22, a PET unloading guide component 23 and a PET unloading stretching component 24. The PET unloading roller 21 is used to unwind the PET material and feed it to the PET unloading deviation correction component 22 to correct the PET material, and then enter the PET unloading guide component 23 for guidance. The PET unloading stretching component 24 is used to stretch the PET material and then feed it to the micro-concave rolling component 33 for rolling. In this embodiment, the PI unloading mechanism 1 ensures the stability and accuracy of the PI material during the unwinding process through its precisely designed components. The PI unloading roller 11 smoothly unwinds the material, and then the PI unloading deviation correction component 12 quickly and accurately corrects the material deviation to ensure the straightness and position accuracy of the material in subsequent processing. The PI unloading guide component 13 further guides the material into the stretching link, and the PI unloading stretching component 14 appropriately stretches the material according to the process requirements, laying a solid foundation for the subsequent coating operation of the roller coating component 32. This series of operations not only improves the utilization rate of the PI material, but also ensures the stability and consistency of the coating quality. Similarly, the PET unloading mechanism 2 also exhibits excellent performance. The coordinated work of the PET unloading roller 21, the PET unloading deviation correction component 22, the PET unloading guide component 23 and the PET unloading stretching component 24 enables the PET material to maintain a high degree of stability and accuracy during the unwinding, deviation correction, guiding and stretching processes. In particular, after being stretched, the surface of the PET material becomes smoother, which is beneficial to the subsequent rolling operation of the micro-concave rolling assembly 33, thereby improving the overall quality and durability of the product.

[0036] The roller coating assembly 32 includes a pressing upper roller 321 and a coating lower roller 322. The outer diameter of the coating lower roller 322 is tangent to a transfer roller 323. The transfer roller 323 is provided with a coating module 324. The coating module 324 is used to apply the coating on the transfer roller 323. The transfer roller 323 transfers the coating to the coating lower roller 322. The outer diameter of the coating lower roller 322 is tangent to the outer diameter of the pressing upper roller 321, so as to roll-coat the UV glue on the passing PI film 102. Further improvement is that the micro-concave rolling assembly 33 includes a flattening roller 331 and a micro-concave rolling roller 332. The flattening roller 331 is tangent to the outer diameter of the micro-concave rolling roller 332. The outer diameter of the micro-concave rolling roller 332 is provided with a micro-concave tooth block 333. The micro-concave tooth block 333 is used to roll-press one side of the PTE film to form micro-grooves. The secondary rolling assembly 34 includes a pre-pressing roller group 341, a flattening roller group 342 and a lead-out roller group 343. The pre-pressing roller group 341 is used to guide and pre-press the PI film 102 and the substrate layer 103 and then feed them into the flattening roller group 342. The flattening roller group 342 includes two groups of flattening circular rollers 344 with tangent outer diameters. The flattening circular rollers 344 are used to flatten and connect the PI film 102 and the substrate layer 103. The lead-out roller group 343 is used to lead out the flattened PI film 102. Further improvement is that the laminating mechanism 4 includes two groups of laminating rollers 41 with tangent outer diameters. The laminating rollers 41 are provided with heating elements. The laminating rollers 41 are used to roll and glue the PI film 102 and the PET film 101, and the middle is connected by UV glue to form a whole. In this embodiment, the roller coating assembly 32 realizes uniform and precise coating of UV glue on the PI film 102 by the precise cooperation between the upper pressing roller 321 and the coating lower roller 322, and the efficient coating of the coating module 324 on the transfer roller 323. This design not only improves the coating efficiency, but also ensures the thickness consistency and adhesion firmness of the UV glue layer, providing a reliable bonding basis for the subsequent high temperature resistant protective film. The further introduced micro-concave roller pressing assembly 33 successfully forms a micro-groove structure on the PTE film through the synergistic effect of the flattening roller 331 and the micro-concave roller 332, and the fine rolling of the micro-concave tooth block 333 on the surface of the PTE film. This innovative design not only enhances the surface area and adhesion of the PTE film, but also provides more functionality and aesthetics for its application in high temperature resistant protective films. In the secondary rolling assembly 34, the orderly coordination of the pre-pressing roller group 341, the flattening roller group 342 and the lead-out roller group 343 ensures the precise guiding, pre-pressing, flattening and leading out of the PI film 102 and the substrate layer 103. In particular, the precise design of the flattening roller 344 achieves a close fit and smooth connection between the PI film 102 and the substrate layer 103, effectively improving the overall strength and durability of the high temperature resistant protective film. Finally, the setting of the heating element on the laminating roller 41 in the laminating mechanism 4 achieves efficient heating and gluing of the PI film 102 and the PET film 101 during the rolling process.As a connecting medium, UV glue not only enhances the adhesion between the two film materials, but also gives the high temperature resistant protective film excellent heat resistance and stability.

[0037] See also Fig. 9 As shown, the curing chamber 51 is provided with a curing light module 511 and a curing light guide module 512, and a plurality of curing guide rollers 52 are arranged at intervals, and the curing light module 511 is arranged between two adjacent curing guide rollers 52 to cure the UV glue. In this embodiment, the curing light module 511 is precisely arranged between two adjacent curing guide rollers 52. Such a layout design not only optimizes the space utilization, but also ensures that the UV glue can be evenly and fully exposed to light during the transmission process. The light emitted by the curing light module 511 can more effectively penetrate and act on the UV glue layer through the guidance and focusing of the curing light guide module 512, thereby accelerating its curing reaction and shortening the overall curing time. In the process of gluing and printing of high-temperature resistant protective films, the rapid curing of UV glue is crucial to improving production efficiency. Traditional curing methods may have problems such as uneven curing and long time consumption, and this solution effectively solves these problems by optimizing the structural design of the curing chamber 51.

[0038] See also Fig.10As shown, the coloring spray assembly 61 includes a coloring stretching module 611, a spraying support module 612, a spraying box 613, a cold spraying module 614 and a coloring flattening module 615; the coloring stretching module 611 is used to stretch and flatten the protective film and transmit it in the spraying box 613, the spraying support module 612 is arranged in the spraying box 613, and the cold spraying module 614 is arranged on the spraying box 613 and opposite to the spraying support module 612; the cold spraying module 614 is used to spray and attach nano-scale ceramic powder to the PI film 102 to form a coloring layer 1021, and the coloring flattening module 615 is located at the rear side of the spraying box 613 to roll the sprayed coloring layer 1021. In this embodiment, the coloring stretching module 611 smoothly stretches and transmits the high temperature resistant protective film in the spraying box 613 through precise control, ensuring the uniformity and stability of the protective film during the coloring process. This step provides a good base for subsequent spraying, so that the coloring layer 1021 can be evenly covered on the surface of the protective film, avoiding coloring defects caused by material wrinkles or uneven transmission. The spraying support module 612 plays the role of supporting and fixing the protective film in the spraying box 613. Its reasonable structural design ensures the stability of the protective film during the spraying process and effectively prevents displacement or deformation during the spraying process, thereby ensuring the reliability of the spraying quality. The cold spray module 614 adopts advanced nano-scale ceramic powder spraying technology to evenly attach the ceramic powder to the PI film 102 to form a dense coloring layer 1021. This coloring layer 1021 not only has excellent color expression and weather resistance, but also can significantly improve the high temperature resistance of the protective film, so that it can still maintain a stable protective effect under extreme conditions. The coloring flattening module 615 is located on the rear side of the spraying box 613, and further processes the sprayed coloring layer 1021 by rolling to ensure the flatness and firmness of the coloring layer 1021. This step not only improves the appearance quality of the protective film, but also enhances its durability and wear resistance in practical applications.

[0039] The pattern printing assembly 62 includes a printing roller group 621, a coloring roller group 622, a guide support roller group 623 and a guide curing roller group 624. The guide support roller group 623 is tangent to the outer diameter of the printing roller group 621. The printing roller group 621 is provided with a printing pattern. The coloring roller group 622 is used to color the printing pattern, and the guide curing roller group 624 is used to cure the printing pattern. In this embodiment, the printing pattern precisely set on the printing roller group 621, combined with the high-quality coloring function of the coloring roller group 622, can ensure the accurate restoration and full color performance of the pattern on the high temperature resistant protective film. The design that the printing roller group 621 is tangent to the outer diameter of the guide support roller group 623 not only ensures the stability of the printing process, but also effectively reduces the risk of pattern deformation or blurring, so that the final printed product pattern is clear and the lines are smooth. Secondly, the introduction of the guide curing roller group 624 provides timely curing treatment for the printed pattern. This step is particularly important for high-temperature resistant protective films. It not only quickly locks the color to prevent the pigment from migrating or fading in high-temperature environments, but also enhances the adhesion between the pattern and the protective film, ensuring the durability and reliability of the printed pattern in subsequent applications.

[0040] The receiving mechanism 7 is provided with a receiving guide roller 71, and the receiving guide roller 71 is used to receive the protective film with the printed pattern, and the receiving mechanism 7 is provided with a winding roller group 72, and the winding roller group 72 is used to wind up the protective film. In the present embodiment, specifically, the cleverly configured receiving guide roller 71 in the receiving mechanism 7 not only ensures the precise guidance of the high temperature resistant protective film with the printed pattern during the transmission process, but also effectively avoids the problem of material deviation or wrinkling in the receiving stage, which is crucial for improving the appearance quality and overall performance of the final product. Furthermore, the provision of the winding roller group 72 is an important supplement to the functionality of the receiving mechanism 7. Through the precisely controlled winding mechanism, the high temperature resistant protective film can be evenly and tightly wound up, which is not only conducive to the subsequent storage and transportation of the protective film, but also largely avoids material damage or performance degradation caused by improper winding.

[0041] The above embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the attached claims.

Claims

1. A high temperature resistant insulating protective film gluing and printing process, characterized in that: The high temperature resistant insulating protective film comprises a PET film and a PI film, wherein the PET film and the PI film are connected by UV gluing, and a printed mark is provided on the PET film or the PI film; The high temperature resistant insulating protective film gluing and printing process is implemented by a gluing and printing device, which includes a PI feeding mechanism, a PET feeding mechanism, a coating mechanism, a laminating mechanism, a curing mechanism, a printing mechanism and a receiving mechanism. The coating mechanism includes a coating frame, a roller coating assembly, a micro-concave roller pressing assembly and a secondary roller pressing assembly. The roller coating assembly and the micro-concave roller pressing assembly are respectively arranged on the upper and lower sides of the coating frame, and the secondary roller pressing assembly is arranged behind the roller coating assembly. The printing mechanism includes a coloring spraying component and a pattern printing component, and the coloring spraying component and the pattern printing component are arranged in sequence; the PI unloading mechanism is used to unload the PI film and feed the PI film to the coating mechanism, and the coating mechanism is used to coat the UV glue on the PI film, the PET unloading mechanism is used to unload the PET film and feed it to the micro-concave roller pressing component, and the secondary roller pressing component is used to flatten the UV glue on the PI film, the pressing mechanism is used to press and glue the PI film and the PET film to form a high-temperature resistant insulating protective film, and the curing mechanism is used to cure the high-temperature resistant insulating protective film after gluing to cure the UV glue, and the pattern printing component prints a pattern on the PI film; The printing process includes the following steps: Step S1, film material discharge: the PI film is tension-stretched by the PI discharge mechanism, and then fed to the roller coating assembly after tension-stretching, and the roller coating assembly coats UV glue on the PI film, and at the same time, the PET film is tension-stretched by the PET discharge mechanism, and then discharged to the micro-concave roller pressing assembly after tension-stretching, and micro-concave roller pressing assembly is used to roll out micro-grooves on the bonding surface of the PET film; Step S2, bonding and connecting the protective films: After the PI film is coated, the UV glue is flattened by a secondary rolling assembly, and then the flattened film is transported to a laminating mechanism; at the same time, the PET film is rolled by a micro-concave rolling assembly and then sent to a laminating mechanism, and the PI film and the PET film are rolled by the laminating mechanism so that the two are bonded and connected by UV glue, and the bonding area is increased by the micro-grooves during the bonding process; Step S3, curing treatment: a curing chamber is provided in the curing mechanism, and a plurality of curing guide rollers are provided in the curing chamber for transmitting and curing the UV glue of the high temperature resistant insulating protective film after gluing; Step S4, color printing: after the curing is completed, a coloring layer is sprayed on the surface of the PI film by a coloring spraying assembly; The coloring spraying component sprays nano-scale powder particles onto the PI film to form a base color of the pattern on the PI film; Step S5, pattern printing: after the spraying and forming of the coloring layer is completed, the protective film enters the pattern printing component, and the pattern printing component prints a mark on the coloring layer. The pattern printing is performed by laser printing or roller printing; Step S6, conveying and collecting: after the pattern printing is completed, the pattern is fixed through conveying and then reeled up through the collecting mechanism.

2. The high temperature resistant insulating protective film gluing and printing process according to claim 1 is characterized in that: A substrate layer is provided between the PET film and the PI film, wherein the substrate layer is a mesh fiber substrate layer, and the mesh fiber substrate layer is used to compositely connect the PET film and the PI film; The gluing printing equipment also includes a substrate feeding mechanism, which is used to feed the substrate layer and feed the substrate layer to the secondary rolling assembly, and connect the substrate layer with the PI layer through the secondary rolling assembly, and the two are connected by UV gluing.

3. The high temperature resistant insulating protective film gluing and printing process according to claim 2 is characterized in that: The PET film is provided with a micro-concave composite layer, the micro-concave composite layer is provided between the PET film and the PI film, and the micro-concave composite layer is a BOPE film; The lamination printing equipment is provided with a micro-concave composite film feeding mechanism, which is used to feed the BOPE film to the micro-concave rolling assembly, and the BOPE film is hot-rolled and attached to the PET film through the micro-concave rolling assembly, and micro-grooves are formed on the PET film.

4. The high temperature resistant insulating protective film gluing and printing process according to claim 3 is characterized in that: In the step S1, when the PET film is rolled by the micro-concave rolling assembly, the micro-concave composite film feeding mechanism feeds the BOPE film into the micro-concave rolling assembly, and the BOPE film is hot-rolled by the micro-concave rolling assembly; In the step S2, when the PI film is tension-stretched by the PI unloading mechanism and fed into the roller coating assembly and then into the secondary rolling assembly, the substrate is unloaded by the substrate unloading mechanism, and the substrate layer is roll-pressed and connected with the PI layer by the secondary rolling assembly.

5. The high temperature resistant insulating protective film gluing and printing process according to claim 4 is characterized in that: A punching assembly is provided at the front end of the micro-concave rolling assembly, and the punching assembly is used to roll and punch holes in the BOPE film, and convey the punched BOPE film toward the micro-concave rolling assembly; the punching assembly includes a hollow guide roller with holes and a needle roller tangent to the outer diameter of the hollow guide roller, and the needle roller is provided with a needle head, and the needle head corresponds to the hole of the hollow guide roller to punch holes in the BOPE film passing through.

6. The high temperature resistant insulating protective film gluing and printing process according to claim 1 is characterized in that: The PI unloading mechanism includes a PI unloading roller, a PI unloading deviation correction component, a PI unloading guide component and a PI unloading stretching component. The PI unloading roller is used to unwind the PI material and send it to the PI unloading deviation correction component to correct the PI material, and then enter the PI unloading guide component for guidance. The PI unloading stretching component is used to stretch the PI material and send it to the roller coating component for coating after stretching. The PET unloading mechanism includes a PET unloading roller, a PET unloading correction component, a PET unloading guide component and a PET unloading stretching component. The PET unloading roller is used to unwind the PET material and send it to the PET unloading correction component to correct the PET material, and then enter the PET unloading guide component for guidance. The PET unloading stretching component is used to stretch the PET material and then send it to the micro-concave rolling component for rolling.

7. The high temperature resistant insulating protective film gluing and printing process according to claim 1 is characterized in that: The roller coating assembly includes a pressing upper roller and a coating lower roller, the outer diameter of the coating lower roller is tangent to a transfer roller, the transfer roller is provided with a coating module, the coating module is used to apply the coating on the transfer roller, the transfer roller transfers the coating to the coating lower roller, the outer diameter of the coating lower roller is tangent to the outer diameter of the pressing upper roller, so as to roll-coat the UV glue on the passing PI film; The micro-concave rolling assembly includes a flat pressing roller and a micro-concave pressing roller. The flat pressing roller is tangent to the outer diameter of the micro-concave pressing roller. The outer diameter of the micro-concave pressing roller is provided with a micro-concave tooth block. The micro-concave tooth block is used to roll one side of the PTE film to form micro grooves.

8. The high temperature resistant insulating protective film gluing and printing process according to claim 1 is characterized in that: The secondary rolling assembly includes a pre-pressing roller group, a flattening roller group and a lead-out roller group. The pre-pressing roller group is used to guide and pre-press the PI film and the substrate layer and then feed them into the flattening roller group. The flattening roller group includes two groups of flattening circular rollers with tangent outer diameters. The flattening circular rollers are used to flatten and connect the PI film and the substrate layer. The lead-out roller group is used to lead out the flattened PI film. The lamination mechanism comprises two groups of lamination rollers with tangent outer diameters, the lamination rollers are provided with heating elements, and the lamination rollers are used to roll-press and glue the PI film and the PET film together, and the two are connected by UV glue in the middle to form an integral body.

9. The high temperature resistant insulating protective film gluing and printing process according to claim 1, characterized in that: The curing chamber is provided with a curing light module and a curing light guide module. A plurality of curing guide rollers are arranged at intervals. The curing light module is arranged between two adjacent curing guide rollers to cure the UV glue.

10. The high temperature resistant insulating protective film gluing and printing process according to claim 1, characterized in that: The coloring spray assembly includes a coloring stretching module, a spraying support module, a spraying box, a cold spraying module and a coloring flattening module; the coloring stretching module is used to stretch and flatten the protective film for transmission in the spraying box, the spraying support module is arranged in the spraying box, and the cold spraying module is arranged on the spraying box and opposite to the spraying support module; the cold spraying module is used to spray and attach nano-scale ceramic powder to the PI film to form a coloring layer, and the coloring flattening module is located at the rear side of the spraying box to roll the sprayed coloring layer; The pattern printing assembly comprises a printing roller group, a coloring roller group, a guide support roller group and a guide curing roller group, wherein the guide support roller group is tangent to the outer diameter of the printing roller group, a printing pattern is arranged on the printing roller group, the coloring roller group is used for coloring the printing pattern, and the guide curing roller group is used for curing the printing pattern; The material receiving mechanism is provided with a material receiving guide roller, and the material receiving guide roller is used to receive the protective film with the printed pattern. The material receiving mechanism is provided with a winding roller group, and the winding roller group is used to wind up the protective film.

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