High temperature resistant insulation protective film gluing printing process

Abstract

The application relates to the technical field of glue printing, in particular to a high-temperature-resistant insulating protective film glue printing process, which comprises a PET film and a PI film, the PET film and the PI film are connected through UV glue, and the high-temperature-resistant insulating protective film glue printing process is implemented by a glue printing device; the PET film and the PI film are connected through UV glue technology, the PET film is well-known for its good mechanical strength and weather resistance, the PI film has high-temperature resistance and insulating performance, the combination of the two obtains a high-temperature-resistant insulating protective film which is excellent in stability under electrical insulation and high-temperature environment. In addition, the PI has high-temperature resistance, the PET has insulating properties, the PI film and the PET film are tightly combined through UV glue coating, so that the product has double-layer properties of fireproofing and insulation.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of glue printing, in particular to a high-temperature-resistant insulation protective film glue printing process. BACKGROUND

[0002] Electronic high-temperature-resistant insulation protective films are widely used in the packaging and fixing of electronic components. In complex electronic systems, various components need to be accurately arranged and reliably packaged to prevent interference and damage from the external environment. Such protective films, with their excellent insulation performance and high-temperature resistance, can effectively isolate and protect components, improving the stability and reliability of the entire system. In the manufacturing process of electronic products, high-temperature-resistant insulation protective films are often used as temporary or permanent protective layers. For example, during the production and processing of circuit boards, the protective film can be applied to the circuit board to prevent sparks and splashes caused by welding, cutting and other processes from damaging the circuit board. At the same time, it can effectively prevent dust, moisture and other pollutants from entering the circuit board, ensuring product quality.

[0003] Existing insulation protective films generally cannot simultaneously have high-temperature-resistant fireproof and insulation functions in terms of structure, and have poor stability and durability in actual use. Moreover, the preparation process is relatively complex. It is difficult to set patterns on the protective film. Therefore, new improvements are needed for the existing protective film structure and preparation. SUMMARY

[0004] To solve the above problems, the present application uses UV glue technology to connect the PET film and the PI film. The PET film is known for its good mechanical strength and weather resistance, while the PI film is famous for its excellent high-temperature resistance and insulation performance. The combination of the two produces a high-temperature-resistant insulation protective film that performs excellently in terms of electrical insulation and stability in high-temperature environments.

[0005] The technical scheme adopted by the present application is: a high-temperature-resistant insulation protective film gluing printing process, the high-temperature-resistant insulation protective film comprises 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 insulation protective film gluing printing process is implemented by a gluing printing device, the gluing printing device comprises a PI feeding mechanism, a PET feeding mechanism, a coating mechanism, a pressing mechanism, a curing mechanism, a printing mechanism and a material receiving mechanism, the coating mechanism comprises a coating rack, 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 rack, and the secondary roller pressing assembly is arranged behind the roller coating assembly; the printing mechanism comprises a coloring spraying assembly and a pattern printing assembly, and the coloring spraying assembly and the pattern printing assembly are sequentially arranged; the PI feeding mechanism is used for feeding the PI film and sending the PI film to the coating mechanism, the coating mechanism is used for coating UV glue on the PI film, the PET feeding mechanism is used for feeding the PET film and sending the PET film to the micro-concave roller pressing assembly, the secondary roller pressing assembly is used for pressing the UV glue on the PI film, the pressing mechanism is used for pressing and gluing the PI film and the PET film to form the high-temperature-resistant insulation protective film, the curing mechanism is used for curing the high-temperature-resistant insulation protective film after gluing to cure the UV glue, and the pattern printing assembly prints a pattern on the PI film;

[0006] The printing process comprises the following steps:

[0007] Step S1, film material feeding: the PI film is tensioned by the PI feeding mechanism and is sent to the roller coating assembly after tensioning, the roller coating assembly coats UV glue on the PI film, and the PET film is tensioned by the PET feeding mechanism and is fed to the micro-concave roller pressing assembly after tensioning, and the micro-concave roller pressing assembly rolls out micro-concave grooves on the gluing surface of the PET film;

[0008] Step S2, protective film gluing connection: after the PI film is coated, the UV glue is flattened by the secondary roller pressing assembly and is conveyed to the pressing mechanism after flattening; at the same time, after the PET film is micro-concave rolled, the PET film is sent to the pressing mechanism, the PI film and the PET film are pressed by the pressing mechanism, so that the two are gluing connected by the UV glue, and the gluing area is increased by the micro-concave grooves in the joint process;

[0009] Step S3, curing treatment: the curing mechanism is provided with a curing bin, and a plurality of curing guide rollers are arranged in the curing bin to transmit and cure the UV glue of the high-temperature-resistant insulation protective film after gluing;

[0010] Step S4, color printing: after curing, a color layer is sprayed on the surface of the PI film by a color spraying assembly; the color spraying assembly sprays nano-sized powder particles on the PI film to form a base color pattern on the PI film;

[0011] Step S5, pattern printing: after the color layer is formed by spraying, the protective film enters a pattern printing assembly, which prints marks on the color layer; the pattern printing is performed by laser printing or roller printing.

[0012] Step S6, transmission and material collection: after the pattern printing is completed, the pattern is fixed by transmission, and then the material is collected by a material collection mechanism.

[0013] Further improvement of the above scheme is that a base layer is arranged between the PET film and the PI film, the base layer is a reticular fiber base layer, and the reticular fiber base layer is used to composite connect the PET film and the PI film; the adhesive printing equipment further comprises a base material feeding mechanism, the base material feeding mechanism is used to feed the base layer, and the base layer is fed to the secondary roller pressing assembly, the base layer and the PI layer are connected by the secondary roller pressing assembly, and the two are connected by UV adhesive connection.

[0014] Further improvement of 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 adhesive printing equipment is provided with a micro-concave composite film feeding mechanism, the micro-concave composite film feeding mechanism is used to feed the BOPE film to the micro-concave roller pressing assembly, the BOPE film is hot-rolled and attached to the PET film by the micro-concave roller pressing assembly, and a micro-concave groove is formed on the PET film.

[0015] Further improvement of the above scheme is that in step S1, when the PET film is rolled by the micro-concave roller pressing assembly, the BOPE film is fed into the micro-concave roller pressing assembly by the micro-concave composite film feeding mechanism, and the BOPE film is hot-rolled by the micro-concave roller pressing assembly.

[0016] Further improvement of the above scheme is that in step S2, when the PI film is tensioned and sent into the roller coating assembly and then into the secondary roller pressing assembly by the PI feeding mechanism, the base material is fed by the base material feeding mechanism, and the base layer and the PI layer are roller-pressed and connected by the secondary roller pressing assembly.

[0017] Further improvement of the above scheme is that the front end of the micro-concave roller pressing assembly is provided with a punching assembly, the punching assembly is used to roll and punch the BOPE film, and the punched BOPE film is conveyed towards the micro-concave roller pressing assembly; the punching assembly comprises a hollow guide roller with holes and a needle roller tangent to the outer diameter of the hollow guide roller, the needle roller is provided with a needle, and the needle corresponds to the holes of the hollow guide roller to punch the passing BOPE film.

[0018] Further improvement of the above scheme is that the PI unwinding mechanism comprises a PI unwinding roller, a PI unwinding deviation correction assembly, a PI unwinding guide assembly and a PI unwinding stretching assembly. The PI unwinding roller is used to unwind the PI material and send it to the PI unwinding deviation correction assembly for deviation correction, and then to the PI unwinding guide assembly for guidance. The PI unwinding stretching assembly is used to stretch the PI material, and then send it to the roller coating assembly for coating.

[0019] Further improvement of the above scheme is that the PET unwinding mechanism comprises a PET unwinding roller, a PET unwinding deviation correction assembly, a PET unwinding guide assembly and a PET unwinding stretching assembly. The PET unwinding roller is used to unwind the PET material and send it to the PET unwinding deviation correction assembly for deviation correction, and then to the PET unwinding guide assembly for guidance. The PET unwinding stretching assembly is used to stretch the PET material, and then send it to the micro-concave roller pressing assembly for roller pressing.

[0020] Further improvement of the above scheme is that the roller coating assembly comprises a pressing upper roller and a coating lower roller. The outer diameter of the coating lower roller is tangent to a transfer roller. A coating module is arranged on the transfer roller. The coating module is used to apply 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 to roll coat the passing PI film with UV glue.

[0021] Further improvement of the above scheme is that the micro-concave roller pressing assembly comprises a flat pressing roller and a micro-concave pressing roller. The outer diameters of the flat pressing roller and the micro-concave pressing roller are tangent. 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 press one side of the PTE film to form a micro-concave groove.

[0022] Further improvement of the above scheme is that the secondary roller pressing assembly comprises a pre-pressing roller group, a flat pressing roller group and an exit roller group. The pre-pressing roller group is used to guide and pre-press the PI film and the substrate layer, and then send them to the flat pressing roller group. The flat pressing roller group comprises two groups of flat pressing rollers with tangent outer diameters. The flat pressing rollers are used to flatten and connect the PI film and the substrate layer. The exit roller group is used to guide the flattened PI film out.

[0023] Further improvement of the above scheme is that the pressing mechanism comprises two groups of pressing rollers with tangent outer diameters. The pressing rollers are provided with heating elements. The pressing rollers are used to roll press and glue the PI film and the PET film, and then connect them through the UV glue to form an integrated body.

[0024] Further improvement of the above scheme is that the curing bin is provided with a curing light irradiation module and a curing light guide module. A plurality of curing guide rollers are arranged at intervals. The curing light irradiation module is arranged between two adjacent curing guide rollers to cure the UV glue.

[0025] Further improvement of the above scheme is that the coloring spraying assembly comprises a coloring stretching module, a spraying support module, a spraying box, a cold spraying module and a coloring calendering module; the coloring stretching module is used for stretching and flattening the protective film in the spraying box for transmission; the spraying support module is arranged in the spraying box; the cold spraying module is arranged on the spraying box and opposite to the spraying support module; the cold spraying module is used for spraying and adhering the nano-scale ceramic powder on the PI film to form a coloring layer; and the coloring calendering module is located at the rear side of the spraying box to roll the coloring layer after spraying.

[0026] Further improvement of the above scheme is that the pattern printing assembly comprises 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 for coloring the printing pattern; and the guide curing roller group is used for curing the printing pattern.

[0027] Further improvement of the above scheme is that the material collecting mechanism is provided with a material collecting guide roller which is used for collecting the protective film with the printing pattern; and the material collecting mechanism is provided with a winding roller group which is used for winding the protective film.

[0028] The present application has the following advantages:

[0029] Compared with the existing electronic product insulation protective film, the application adopts UV bonding technology to connect the PET film and the PI film, and the process realizes the efficient and seamless combination between the two high-performance materials. The UV glue rapidly cures under ultraviolet light, which not only greatly shortens the production cycle, but also ensures the strength and stability of the bonding layer. The PET film is known for its good mechanical strength and weather resistance, while the PI film is famous for its excellent high-temperature resistance and insulation performance. The combination of the two achieves a high-temperature-resistant insulation protective film, which performs excellently in electrical insulation and stability in 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 layout of the roll 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 uniformly and accurately coated on the surface of the PI film. This design effectively avoids glue waste, improves material utilization, and also ensures the flatness and consistency of the bonding surface, laying a solid foundation for subsequent pressing and printing processes. The application of micro concave roller pressing technology further improves the precision and uniformity of coating, enabling the 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 pattern and color diversification. The sequential arrangement of the colored spraying assembly and the pattern printing assembly makes it possible to achieve rich colors and fine patterns on the high-temperature-resistant insulation protective film. This feature not only meets the individualized needs of electronic product appearance design, but also provides convenience for adding brand logos, anti-counterfeit marks, and other information. By adjusting the parameters of spraying and printing, quick switching between different colors and patterns can be easily realized, greatly improving the market competitiveness of products. The entire bonding and printing process is implemented by a highly integrated bonding and printing equipment, from PI feeding, PET feeding, to coating, pressing, curing, printing, and finally to material collection, each link is closely connected, forming 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 system of the equipment. This not only ensures the stability of product quality, but also provides convenience for the collection and analysis of production data, providing strong support for the intelligent management and continuous improvement of enterprises. Thanks to its excellent performance and flexible customization ability, the high-temperature-resistant insulation protective film bonding and printing process has broad application prospects in multiple fields. Whether it is the battery package of new energy vehicles, the protection of electronic components of aerospace vehicles, or the insulation of high-end electronic consumer goods, the process can provide reliable material solutions. With the continuous maturity of technology and the further reduction of cost, its market potential will be further released, injecting new vitality into the upgrading and transformation of related industries.

[0030] In summary, the high-temperature-resistant insulation protective film gluing printing process and its supporting equipment, with its high efficiency, precision, and environmental protection characteristics, not only improves the comprehensive performance of the product, but also makes an important contribution to the technical progress and sustainable development of the industry.

[0031] In the printing process, during the film material feeding stage (step S1), the PI feeding mechanism and the PET feeding mechanism respectively stretch the PI film and the PET film by tension to ensure the flatness and stability of the film material, laying a solid foundation for subsequent processing. The roller coating assembly uniformly coats UV glue on the PI film, while the micro-concave roller pressing assembly precisely rolls out micro-concave grooves on the PET film. This innovative design not only increases the gluing area, but also improves the firmness and uniformity of the gluing, providing a strong guarantee for the high performance of the protective film. In the protective film gluing and connecting stage (step S2), the secondary roller pressing assembly flattens the UV glue to ensure uniform distribution of the glue layer, further improving the gluing effect. The pressing mechanism precisely controls the PI film and the PET film to be tightly pressed together, achieving firm gluing between the two, while the addition of micro-concave grooves effectively increases the friction force of the gluing interface, improving the peel strength and durability of the protective film. The curing process stage (step S3) is a key link to ensure the stability of the protective film performance. The curing mechanism is equipped with a curing bin and multiple curing guide rollers, providing 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 in extreme environments. In the color printing stage (step S4), the nano-level powder particles are uniformly sprayed on the PI film by the color spraying assembly, not only achieving precise control of the pattern background color, but also giving the protective film good color saturation and wear resistance. The use of nano-level powder particles further enhances the delicacy and gloss 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 patterns. These two printing methods not only have high speed and efficiency, but also meet the individual needs of different customers for patterns, improving the market competitiveness of the product. Finally, in the transmission and material collection stage (step S6), the precise control of the transmission mechanism and the stable winding of the material collection mechanism ensure the flatness and neatness of the finished protective film. The optimization of this step not only improves the production efficiency, but also reduces the waste rate, providing customers with a better product experience. The printing process scheme 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 DRAWINGS

[0032] Figure 1 The structure of the high-temperature-resistant insulation protective film of the present application is shown in the figure.

[0033] Figure 2 Structure diagram of another embodiment of the high-temperature-resistant insulation protective film of the present application;

[0034] Figure 3 Preparation flow diagram of the high-temperature-resistant insulation protective film of the present application;

[0035] Figure 4 Perspective diagram of the glue printing device of the present application;

[0036] Figure 5 Perspective diagram of the glue printing device of the present application from another angle; Figure 4

[0037] Figure 6 Front view diagram of the glue printing device of the present application; Figure 4

[0038] Figure 7 Diagram of the PI feeding mechanism and the PET feeding mechanism of the glue printing device of the present application; Figure 4

[0039] Diagram of the coating mechanism of the glue printing device of the present application; Figure 8 Figure 4 Diagram of the solidification mechanism of the glue printing device of the present application;

[0040] Figure 9 Figure 4 Diagram of the printing mechanism of the glue printing device of the present application;

[0041] Figure 10 Diagram of the printing mechanism of the glue printing device of the present application; Figure 4

[0042] Flow diagram of the glue printing process of the high-temperature-resistant insulation protective film of the present application. Figure 11 Legend: high-temperature-resistant insulation protective film 10, PET film 101, micro-concave composite layer 1011, PI film 102, coloring layer 1021, substrate layer 103;

[0043] PI feeding mechanism 1, PI feeding roller 11, PI feeding deviation correction assembly 12, PI feeding guide assembly 13, PI feeding stretching assembly 14;

[0044] PET feeding mechanism 2, PET feeding roller 21, PET feeding deviation correction assembly 22, PET feeding guide assembly 23, PET feeding stretching assembly 24;

[0045]

[0046] ​​​​​The coating mechanism 3, the coating frame 31, the roller coating assembly 32, the upper compression roller 321, the lower coating roller 322, the transfer roller 323, the coating module 324, the micro-concave roller compression assembly 33, the flat compression roller 331, the micro-concave compression roller 332, the micro-concave tooth block 333, the secondary roller compression assembly 34, the pre-roller compression assembly 341, the flat roller compression assembly 342, the lead-out roller assembly 343, the flat round roller 344, the punching assembly 35, the hollow guide roller 351, the needle roller 352, the needle 353;

[0047] The compression mechanism 4, the compression roller 41;

[0048] The curing mechanism 5, the curing bin 51, the curing light irradiation module 511, the curing light guide module 512, the curing guide roller 52;

[0049] The printing mechanism 6, the coloring spraying assembly 61, the coloring stretching module 611, the spraying support module 612, the spraying box 613, the cold spraying module 614, the coloring flatting module 615, the pattern printing assembly 62, the printing roller assembly 621, the coloring roller assembly 622, the guide support roller assembly 623, the guide curing roller assembly 624;

[0050] The material collecting mechanism 7, the material collecting guide roller 71, the winding roller assembly 72, the base material feeding mechanism 8, the micro-concave composite film feeding mechanism 9. DETAILED DESCRIPTION

[0051] In order to facilitate the understanding of the present application, the present application will be described in more detail below with reference to the relevant drawings. The preferred embodiments of the present application are shown in the drawings. However, the present application 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 disclosure of the present application more thorough and comprehensive.

[0052] It should be noted that when an element is referred to as being "fixed" to another element, it can be directly on the other element or there can be an intervening element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or there can be an intervening element.

[0053] Unless otherwise defined, 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 terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this description and the appended claims, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be understood that the terms "comprises" and / or "comprising," when used in this specification, 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. Figures 1-11As shown, in an embodiment of the present application, a high-temperature-resistant insulation protective film gluing printing process is involved, the high-temperature-resistant insulation 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 insulation protective film 10 gluing printing process is implemented by a gluing printing device, the gluing printing device includes a PI feeding mechanism 1, a PET feeding mechanism 2, a coating mechanism 3, a pressing mechanism 4, a curing mechanism 5, a printing mechanism 6, and a material collecting mechanism 7, the coating mechanism 3 includes a coating rack 31, a roller coating assembly 32, a micro-embossing roller pressing assembly 33, and a secondary roller pressing assembly 34, the roller coating assembly 32 and the micro-embossing roller pressing assembly 33 are respectively arranged on the upper and lower sides of the coating rack 31, and the secondary roller pressing assembly 34 is arranged behind the roller coating assembly 32; 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 sequentially arranged; the PI feeding mechanism 1 is used for feeding the PI film 102 and sending the PI film 102 to the coating mechanism 3, the coating mechanism 3 is used for coating the UV glue on the PI film 102, the PET feeding mechanism 2 is used for feeding the PET film 101 and sending the PET film 101 to the micro-embossing roller pressing assembly 33, the secondary roller pressing assembly 34 is used for pressing the UV glue on the PI film 102, the pressing mechanism 4 is used for pressing and gluing the PI film 102 and the PET film 101 to form the high-temperature-resistant insulation protective film 10, the curing mechanism 5 is used for curing the high-temperature-resistant insulation protective film 10 after gluing to cure the UV glue, and the pattern printing assembly 62 prints a pattern on the PI film 102. By using the UV gluing technology to connect the PET film 101 and the PI film 102, the process realizes the efficient and seamless combination of two high-performance materials. The UV glue rapidly cures under ultraviolet light, not only greatly shortening the production cycle, but also ensuring the strength and stability of the gluing layer. The PET film 101 is known for its good mechanical strength and weather resistance, while the PI film 102 is famous for its excellent high-temperature resistance and insulation performance. The combination of the two produces the high-temperature-resistant insulation protective film 10, which performs excellently in terms of stability in electrical insulation and high-temperature environments, meeting the stringent requirements of high-end electronic devices 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 assembly 32 and the micro-embossing roller pressing assembly 33, and the arrangement of the secondary roller pressing assembly 34, which ensures that the UV glue can be uniformly and accurately coated on the surface of the PI film 102. This design effectively avoids glue waste, improves material utilization, and also ensures the flatness and consistency of the gluing surface, laying a solid foundation for subsequent pressing and printing processes. The application of the micro-embossing roller pressing technology further improves the precision and uniformity of the coating, enabling the UV glue to better penetrate into the tiny pores of the PI film 102, enhancing the gluing strength.The design of the printing mechanism 6 fully considers the demand for pattern and color diversification. The sequential arrangement of the colored spraying assembly 61 and the pattern printing assembly 62 makes it possible to achieve color-rich and pattern-fine printing on the high-temperature-resistant insulation protective film 10. This feature not only meets the individualization needs of electronic product appearance design, but also provides convenience for the addition of brand logos, anti-counterfeit logos and other information. By adjusting the parameters of spraying and printing, quick switching of different colors and patterns can be easily realized, greatly improving the market competitiveness of products. The entire lamination printing process is implemented by a highly integrated lamination printing equipment, from PI feeding, PET feeding, to coating, pressing, curing, printing, and finally to material collection, each link is closely connected, forming 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 system of the equipment. This not only guarantees the stability of product quality, but also provides convenience for 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 ability, the lamination printing process of the high-temperature-resistant insulation protective film 10 has broad application prospects in multiple fields. Whether it is the battery package packaging of new energy vehicles, the protection of electronic components of aerospace vehicles, or the 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 cost, its market potential will be further released, injecting new vitality into the upgrading and transformation of related industries.

[0054] In summary, the lamination printing process of the high-temperature-resistant insulation protective film 10 and its supporting equipment, with its efficient, precise and environmentally friendly characteristics, not only improves the comprehensive performance of products, but also makes important contributions to the technological progress and sustainable development of the industry.

[0055] The printing process comprises the following steps: step S1, film material feeding: the PI film 102 is tensioned by the PI feeding mechanism 1 and sent to the roller coating assembly 32 after tensioning, the roller coating assembly 32 performs coating of the UV glue on the PI film 102, at the same time, the PET film 101 is tensioned by the PET feeding mechanism 2 and fed to the micro-concave roller pressing assembly 33 after tensioning, and the micro-concave groove is pressed on the gluing surface of the PET film 101 by the micro-concave roller pressing assembly 33; 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 then conveyed to the pressing mechanism 4; at the same time, after the PET film 101 is micro-concave pressed, it is sent to the pressing mechanism 4, and the PI film 102 and the PET film 101 are pressed by the pressing mechanism 4, so that they are glued and connected by the UV glue, and the gluing area is increased by the micro-concave groove during the joint process; step S3, curing treatment: the curing mechanism 5 is provided with a curing bin 51, and a plurality of curing guide rollers 52 are arranged in the curing bin 51, which are used for transmitting and curing the UV glue of the high-temperature-resistant and insulating protective film 10 after gluing; step S4, color printing: after curing, the coloring spraying assembly 61 sprays the coloring layer 1021 on the surface of the PI film 102; the coloring spraying assembly 61 sprays and adheres the nano-level powder particles on the PI film 102 to form the ground color of the pattern on the PI film 102; step S5, pattern printing: after the coloring layer 1021 is sprayed and formed, the protective film enters the pattern printing assembly 62, the pattern printing assembly 62 prints the mark on the coloring layer 1021, and 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 by transmission and then wound by the material collection mechanism 7.

[0056] In the above embodiment, during the film material feeding stage (step S1), the PI film 102 and the PET film 101 are respectively tensioned by the PI feeding mechanism 1 and the PET feeding mechanism 2, ensuring the flatness and stability of the film material, laying a solid foundation for subsequent processing. The roll coating assembly 32 uniformly coats UV glue on the PI film 102, while the micro-concave roller pressing assembly 33 precisely rolls out micro-concave 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 roller pressing assembly 34 flattens the UV glue, ensuring uniform distribution of the glue layer and further improving the bonding effect. The pressing mechanism 4 precisely controls the tight roller pressing of the PI film 102 and the PET film 101 together, achieving firm bonding between the two, while the addition of micro-concave grooves effectively increases the friction force of the bonding interface, improving the peel strength and durability of the protective film. The curing treatment stage (step S3) is a key link to ensure the stability of the protective film performance. The curing chamber 51 and multiple curing guide rollers 52 inside the curing mechanism 5 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 in extreme environments. In the coloring printing stage (step S4), the nanoscale powder particles are uniformly sprayed on the PI film 102 by the coloring spraying assembly 61, not only achieving precise control of the pattern background color, but also giving the protective film good color saturation and wear resistance. The use of nanoscale powder particles further enhances the delicacy and gloss 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 patterns. These two printing methods not only have high speed and efficiency, but also meet the individual needs of different customers for patterns, enhancing the market competitiveness of the product. Finally, in the transmission and material collection stage (step S6), the flatness and neatness of the finished protective film are ensured through precise control of the transmission mechanism and stable winding of the material collection mechanism 7. The optimization of this step not only improves production efficiency, but also reduces waste, providing customers with a better product experience. The printing process scheme significantly improves the production efficiency, quality, functionality, and aesthetics of the high-temperature resistant and insulating protective film 10 through a series of innovative designs and optimization measures.

[0057] Referring to Figure 8As shown, a substrate layer 103 is arranged between the PET film 101 and the PI film 102, which is a reticular fiber substrate layer 103 used for composite connection of the PET film 101 and the PI film 102; the adhesive printing equipment further comprises a substrate feeding mechanism 8 for feeding the substrate layer 103 and feeding the substrate layer 103 to the secondary roller assembly 34, which connects the substrate layer 103 with the PI layer through the secondary roller assembly 34, and the two are connected through UV adhesive connection. In this embodiment, specifically, the reticular fiber substrate layer 103 serves as an innovative composite connection medium, and its unique reticular 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 the tight connection between the two film materials through the interweaving effect of the fibers. Compared with the traditional composite method, this scheme has significantly improved the connection strength, thereby ensuring the stable performance of the high-temperature-resistant protective film in extreme temperature environments. In the adhesive printing process, the introduction of the substrate feeding mechanism 8 further improves the production efficiency and precision. This 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 transmission. Subsequently, the secondary roller assembly 34 uses precise roller technology to tightly bond the substrate layer 103 with the PI layer. In this process, the use of UV adhesive connection not only speeds up the curing speed, but also ensures the strength and weather resistance of the connection site. 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.

[0058] The PET film 101 is provided with a micro-concave composite layer 1011, which is arranged between the PET film 101 and the PI film 102, and is a BOPE film; the gluing and printing equipment 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 by the micro-concave roller pressing assembly 33, and a micro-concave groove is formed on the PET film 101. In this embodiment, the BOPE film, as a high-performance material, not only has excellent heat resistance and chemical corrosion resistance, but also has extraordinary adhesion performance and morphological stability in the gluing and printing process due to its unique micro-concave structure design. In the configuration of the gluing and printing equipment, the introduction of the micro-concave composite film feeding mechanism 9 ensures the accurate and efficient feeding 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 composite process by accurately controlling the feeding speed and tension. Subsequently, the BOPE film is subjected to hot-rolling treatment by the micro-concave roller pressing assembly 33, which utilizes the combined action of high temperature and pressure to promote the close and uniform attachment of the BOPE film to the surface of the PET film 101, and a series of micro-concave grooves are formed on the surface. These micro-concave grooves not only enhance the bonding force between the PET film 101 and the BOPE film, but also further improve the structural strength and heat resistance of the entire high-temperature-resistant protective film.

[0059] In step S1, when the PET film 101 is rolled by the micro-concave rolling assembly 33, the BOPE film is fed into the micro-concave rolling assembly 33 by the micro-concave composite film feeding mechanism 9 and is hot-rolled by the micro-concave rolling assembly 33. In step S2, when the PI film 102 is tension-stretched and sent into the roller coating assembly 32 and then into the secondary rolling assembly 34 by the PI feeding mechanism 1, the base material is fed by the base material feeding mechanism 8 and the base material layer 103 is rolled and 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, which is used for rolling and punching the BOPE film and conveying the punched BOPE film towards 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 353 corresponding to the holes of the hollow guide roller 351 to punch the passing BOPE film. 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 adhesive layer during hot rolling. The BOPE film fed by the micro-concave composite film feeding mechanism 9 not only realizes effective adhesion with the PET film 101 after entering the micro-concave rolling assembly 33, but also enhances the mechanical strength of the adhesion surface through the micro-concave design. In addition, the setting of the punching assembly 35 precisely punches the BOPE film by the precise cooperation of the hollow guide roller 351 with holes and the needle roller 352, which not only improves the air permeability of the film, but also promotes the bubble removal during the adhesion process, further improving the adhesion quality. In step S2, after the PI film 102 is tension-stretched, it is sent into the secondary rolling assembly 34 together with the base material layer 103 released by the base material feeding mechanism 8. This process not only ensures the close adhesion between the PI film 102 and the base material layer 103, but also realizes the firm adhesion between the multi-layer materials through the high-precision processing of the secondary rolling assembly 34. This multi-layer 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 assembly 35 not only improves the production efficiency, but also significantly improves the comprehensive performance of the product, including stronger adhesion strength, better air permeability and higher processing precision, providing more reliable technical support for the production of high-temperature-resistant protective film.

[0060] Referring to Figure 7As shown, the PI feeding mechanism 1 includes a PI feeding roller 11, a PI feeding deviation correction assembly 12, a PI feeding guide assembly 13, and a PI feeding stretching assembly 14. The PI feeding roller 11 is used to unwind the PI material and send it to the PI feeding deviation correction assembly 12 for deviation correction, and then to the PI feeding guide assembly 13 for guidance. The PI feeding stretching assembly 14 is used to stretch the PI material, which is then sent to the roller coating assembly 32 for coating. Specifically, the PET feeding mechanism 2 includes a PET feeding roller 21, a PET feeding deviation correction assembly 22, a PET feeding guide assembly 23, and a PET feeding stretching assembly 24. The PET feeding roller 21 is used to unwind the PET material and send it to the PET feeding deviation correction assembly 22 for deviation correction, and then to the PET feeding guide assembly 23 for guidance. The PET feeding stretching assembly 24 is used to stretch the PET material, which is then sent to the micro-concave roller pressing assembly 33 for roller pressing. In this embodiment, the PI feeding mechanism 1 ensures the stability and accuracy of the PI material during unwinding through its precisely designed components. The PI feeding roller 11 smoothly unwinds the material, and then the PI feeding deviation correction assembly 12 quickly and accurately corrects the material deviation, ensuring the straightness and positional accuracy of the material during subsequent processing. The PI feeding guide assembly 13 further guides the material into the stretching process, and the PI feeding stretching assembly 14 moderately stretches the material according to the process requirements, laying a solid foundation for the subsequent roller coating assembly 32 coating operation. This series of operations not only improves the utilization rate of PI material, but also ensures the stability and consistency of the coating quality. Similarly, the PET feeding mechanism 2 also exhibits excellent performance. The cooperative work of the PET feeding roller 21, the PET feeding deviation correction assembly 22, the PET feeding guide assembly 23, and the PET feeding stretching assembly 24 ensures that the PET material maintains high stability and precision during unwinding, deviation correction, guidance, and stretching. In particular, the surface of the PET material is smoother after stretching, which is beneficial to the subsequent roller pressing operation of the micro-concave roller pressing assembly 33, thereby improving the overall quality and durability of the product.

[0061] 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 paint module 324 for coating paint on the transfer roller 323, the transfer roller 323 transfers the paint 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 to roll coat the passing PI film 102 with UV glue. Further improvement is that the micro concave roller pressing assembly 33 includes a flat pressing roller 331 and a micro concave pressing roller 332, the outer diameter of the flat pressing roller 331 is tangent to the outer diameter of the micro concave pressing roller 332, the outer diameter of the micro concave pressing roller 332 is provided with a micro concave tooth block 333, the micro concave tooth block 333 is used to roll press the one side of the PTE film to form a micro concave groove. The secondary roller pressing assembly 34 includes a pre-pressing roller group 341, a flat pressing roller group 342 and an exit roller group 343, the pre-pressing roller group 341 is used to guide the PI film 102 and the substrate layer 103 to pre-press and then send them into the flat pressing roller group 342, the flat pressing roller group 342 includes two groups of flat pressing rollers 344 with tangent outer diameters, the flat pressing rollers 344 are used to press and connect the PI film 102 and the substrate layer 103, the exit roller group 343 is used to guide the pressed PI film 102 out. Further improvement is that the pressing mechanism 4 includes two groups of pressing rollers 41 with tangent outer diameters, the pressing rollers 41 are provided with heating elements, the pressing rollers 41 are used to roll press and glue the PI film 102 and the PET film 101, and the middle part is connected to form an integral whole through UV glue. In this embodiment, the roller coating assembly 32 realizes uniform and accurate coating of UV glue on the PI film 102 through the precise cooperation of the pressing upper roller 321 and the coating lower roller 322, and the efficient coating of the paint module 324 on the transfer roller 323. This design not only improves the coating efficiency, but also ensures the thickness consistency and adhesion of the UV glue layer, providing a reliable gluing basis for the subsequent high-temperature resistant protective film. The further introduced micro concave roller pressing assembly 33 successfully forms a micro concave groove structure on the PTE film through the synergistic effect of the flat pressing roller 331 and the micro concave pressing roller 332, and the fine roller pressing 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 roller pressing assembly 34, the orderly cooperation of the pre-pressing roller group 341, the flat pressing roller group 342 and the exit roller group 343 ensures the accurate guidance, pre-pressing, flattening and guiding out of the PI film 102 and the substrate layer 103. Especially, the precise design of the flat pressing rollers 344 realizes the close fitting and flat 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 elements on the pressing rollers 41 in the pressing mechanism 4 realizes efficient heating and gluing of the PI film 102 and the PET film 101 during the roller pressing process.As a connecting medium, the UV glue not only enhances the adhesion between the two film materials, but also endows the high-temperature-resistant protective film with excellent temperature resistance and stability.

[0062] Referring to Figure 9 As shown, the curing bin 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. 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 accurately 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 uniformly and sufficiently receive light during transmission. 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 the curing reaction and shortening the overall curing time. In the process of high-temperature-resistant protective film gluing and printing, the rapid curing of the UV glue is crucial to improve production efficiency. Traditional curing methods may have problems such as uneven curing and long time consumption, while the present scheme effectively solves these problems by optimizing the structural design of the curing bin 51.

[0063] Referring to Figure 10As shown, the coloring spraying 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 for transmission in the spraying box 613. The spraying support module 612 is arranged in the spraying box 613. 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 adhere nano-level ceramic powder on the PI film 102 to form a coloring layer 1021. The coloring flattening module 615 is located at the rear side of the spraying box 613 to roll the coloring layer 1021 after spraying. In this embodiment, the coloring stretching module 611 controls the high-temperature-resistant protective film to be smoothly stretched and transmitted 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 substrate for subsequent spraying, so that the coloring layer 1021 can uniformly cover the surface of the protective film, avoiding coloring defects caused by material wrinkles or uneven transmission. The spraying support module 612 plays a supporting and fixing role for the protective film in the spraying box 613. Its structure design is reasonable, which ensures the stability of the protective film during spraying and effectively prevents displacement or deformation during spraying, thereby ensuring the reliability of the spraying quality. The cold spraying module 614 adopts advanced nano-level ceramic powder spraying technology to uniformly adhere ceramic powder on the PI film 102, forming 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 stable protection effect in extreme environment. The coloring flattening module 615 is located at the rear side of the spraying box 613 and further processes the coloring layer 1021 after spraying through rolling, ensuring 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 actual application.

[0064] The pattern printing assembly 62 comprises a printing roller set 621, an upper color roller set 622, a guide support roller set 623 tangent to the outer diameter of the printing roller set 621, and a guide curing roller set 624 for coloring the printing pattern. In this embodiment, the accurate printing pattern on the printing roller set 621, combined with the high-quality coloring function of the upper color roller set 622, can ensure accurate reproduction and full color performance of the pattern on the high-temperature-resistant protective film. The design of the printing roller set 621 and the guide support roller set 623 tangent to the outer diameter not only ensures the stability of the printing process, but also effectively reduces the risk of pattern distortion or blurring, making the final printed product pattern clear and smooth. Secondly, the introduction of the guide curing roller set 624 provides timely curing treatment for the printed pattern. This step is particularly important for high-temperature-resistant protective film, as it not only quickly locks the color and prevents pigment migration 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.

[0065] The material receiving mechanism 7 is provided with a material receiving guide roller 71 for receiving the protective film with a printed pattern, and a winding roller set 72 for winding the protective film. In this embodiment, the cleverly configured material receiving guide roller 71 in the material receiving mechanism 7 not only ensures accurate guidance of the high-temperature-resistant protective film with a printed pattern during transmission, but also effectively avoids material deviation or wrinkling during the receiving stage, which is crucial for improving the appearance quality and overall performance of the final product. Further, the winding roller set 72 is an important supplement to the functionality of the material receiving mechanism 7. Through precise control of the winding mechanism, the high-temperature-resistant protective film can be uniformly and tightly wound, which not only facilitates subsequent storage and transportation of the protective film, but also largely avoids material damage or performance degradation due to improper winding.

[0066] The above embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it cannot be understood as limiting the scope of the present application. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, several modifications and improvements can be made, which are within the scope of protection of the present application. Therefore, the protection scope of the present application patent should be subject to the appended claims.

Claims

1. A high temperature resistant insulation protective film gluing printing process, characterized in that: The high-temperature-resistant insulation protective film comprises a PET film and a PI film, the PET film and the PI film are connected by UV gluing, and a printed mark is arranged on the PET film or the PI film; The high-temperature-resistant insulation protective film gluing printing process is implemented by a gluing printing device, the gluing printing device comprises a PI feeding mechanism, a PET feeding mechanism, a coating mechanism, a pressing mechanism, a curing mechanism, a printing mechanism and a material receiving mechanism, the coating mechanism comprises a coating rack, 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 arranged on the upper and lower sides of the coating rack respectively, and the secondary roller pressing assembly is arranged behind the roller coating assembly; The printing mechanism comprises a coloring spraying assembly and a pattern printing assembly, the coloring spraying assembly and the pattern printing assembly are sequentially arranged, the PI feeding mechanism is used for feeding the PI film and sending the PI film to the coating mechanism, the coating mechanism is used for coating the UV glue on the PI film, the PET feeding mechanism is used for feeding the PET film and sending the PET film to the micro-concave roller pressing assembly, the secondary roller pressing assembly is used for pressing the UV glue on the PI film, the pressing mechanism is used for pressing and gluing the PI film and the PET film to form the high-temperature-resistant insulation protective film, the curing mechanism is used for curing the high-temperature-resistant insulation protective film after gluing to cure the UV glue, and the pattern printing assembly is used for printing a pattern on the PI film; The printing process comprises the following steps: In step S1, film material feeding, the PI film is tensioned by the PI feeding mechanism and is sent to the roller coating assembly after tensioning, the roller coating assembly coats the UV glue on the PI film, meanwhile, the PET film is tensioned by the PET feeding mechanism and is fed to the micro-concave roller pressing assembly after tensioning, and the micro-concave roller pressing assembly rolls out micro-concave grooves on the gluing surface of the PET film; In step S2, protective film gluing connection, the UV glue is flattened by the secondary roller pressing assembly after the PI film is coated, and is sent to the pressing mechanism after flattening; meanwhile, the PET film is sent to the pressing mechanism after micro-concave rolling, and the PI film and the PET film are pressed by the pressing mechanism to be gluing connected by the UV glue, and the gluing area is increased by the micro-concave grooves during the joint process; In step S3, curing treatment, a curing bin is arranged in the curing mechanism, and a plurality of curing guide rollers are arranged in the curing bin to transmit and cure the UV glue of the high-temperature-resistant insulation protective film after gluing; In step S4, coloring printing, after curing, a coloring layer is sprayed on the surface of the PI film by the coloring spraying assembly; The nanoscale powder particles are sprayed and attached on the PI film to form the ground color of the pattern on the PI film; In step S5, pattern printing, after the coloring layer is sprayed and formed, the protective film enters the pattern printing assembly, a mark is printed on the coloring layer by the pattern printing assembly, and laser printing or roller printing is adopted for pattern printing; In step S6, transmission and material receiving, after the pattern printing is completed, the pattern is fixed by transmission and is then wound by the material receiving mechanism. 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 glue printing equipment is provided with a micro-concave composite film feeding mechanism, the micro-concave composite film feeding mechanism is used for feeding the BOPE film to the micro-concave roller assembly, the BOPE film is hot-rolled and attached to the PET film by the micro-concave roller assembly, and the micro-concave groove is formed on the PET film; The front end of the micro-concave roller assembly is provided with a punching assembly, the punching assembly is used for roller punching of the BOPE film, and the punched BOPE film is conveyed towards the micro-concave roller assembly; the punching assembly comprises a hollow guide roller with holes and a needle roller tangent to the outer diameter of the hollow guide roller, the needle roller is provided with a needle, and the needle corresponds to the hole of the hollow guide roller to punch the passing BOPE film.

2. The high temperature resistant insulation protective film gluing printing process according to claim 1, characterized in that: The PET film and the PI film are provided with a substrate layer, the substrate layer is a reticular fiber substrate layer, and the reticular fiber substrate layer is used for composite connection of the PET film and the PI film; The glue printing equipment further comprises a substrate feeding mechanism, the substrate feeding mechanism is used for feeding the substrate layer and feeding the substrate layer to the secondary roller assembly, the substrate layer is connected with the PI layer by the secondary roller assembly, and the two are connected by UV glue connection.

3. The high temperature resistant insulating protective film gluing printing process according to claim 1, characterized in that: In the step S1, when the PET film is rolled by the micro-concave roller assembly, the BOPE film is fed into the micro-concave roller assembly by the micro-concave composite film feeding mechanism, and the BOPE film is hot-rolled by the micro-concave roller assembly; In the step S2, when the PI feeding mechanism tension-stretches the PI film to send it into the roller coating assembly and then into the secondary roller assembly, the substrate is fed by the substrate feeding mechanism, and the substrate layer is roller-connected with the PI layer by the secondary roller assembly.

4. The high temperature resistant insulating protective film gluing printing process according to claim 1, characterized in that: The PI feeding mechanism comprises a PI feeding roller, a PI feeding deviation correction assembly, a PI feeding guide assembly and a PI feeding stretching assembly, the PI feeding roller is used for unwinding the PI material and sending it into the PI feeding deviation correction assembly, the PI material is deviated, then guided into the PI feeding guide assembly, and the PI feeding stretching assembly is used for stretching the PI material, and the stretched PI material is sent into the roller coating assembly for coating; The PET feeding mechanism comprises a PET feeding roller, a PET feeding deviation correction assembly, a PET feeding guide assembly and a PET feeding stretching assembly, the PET feeding roller is used for unwinding the PET material and sending it into the PET feeding deviation correction assembly, the PET material is deviated, then guided into the PET feeding guide assembly, and the PET feeding stretching assembly is used for stretching the PET material, and then the stretched PET material is sent into the micro-concave roller assembly for roller pressing.

5. The high temperature resistant insulating protective film gluing printing process according to claim 1, characterized in that: The roller coating assembly comprises 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 die set, the coating die set is used for coating the coating on the transfer roller, the transfer roller transfers the coating to the coating lower roller, and the outer diameter of the coating lower roller is tangent to the outer diameter of the pressing upper roller to roll coat the UV glue on the passing PI film. The micro-concave roller assembly comprises a flat pressing roller and a micro-concave pressing roller, the outer diameter of the flat pressing roller is tangent to the outer diameter of the micro-concave pressing roller, and the outer diameter of the micro-concave pressing roller is provided with a micro-concave tooth block for rolling one side of the PET film to form a micro-concave groove.

6. The high temperature resistant insulating protective film gluing printing process according to claim 1, characterized in that: The secondary roller assembly comprises a pre-pressing roller group, a flat pressing roller group and a leading-out roller group, the pre-pressing roller group is used for guiding and pre-pressing the PI film and the substrate layer and then feeding into the flat pressing roller group, the flat pressing roller group comprises two groups of flat pressing rollers with tangent outer diameters, the flat pressing rollers are used for flatly connecting the PI film and the substrate layer, and the leading-out roller group is used for leading out the flatly pressed PI film. The pressing mechanism comprises two groups of pressing rollers with tangent outer diameters, the pressing rollers are provided with heating elements, and the pressing rollers are used for rolling and gluing the PI film and the PET film to form an integral body through the UV glue.

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

8. The high temperature resistant insulating protective film gluing printing process according to claim 1, characterized in that: The coloring spraying assembly comprises a coloring stretching module, a spraying support module, a spraying box, a cold spraying module and a coloring flat pressing module; the coloring stretching module is used for stretching and flattening the protective film in the spraying box for transmission, the spraying support module is arranged in the spraying box, the cold spraying module is arranged on the spraying box and opposite to the spraying support module; the cold spraying module is used for spraying and attaching the nano-scale ceramic powder on the PI film to form a coloring layer, and the coloring flat pressing module is located at the rear side of the spraying box to roll press the coloring layer after spraying; The pattern printing assembly comprises 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 for coloring the printing pattern, and the guide curing roller group is used for curing the printing pattern; The material collecting mechanism is provided with a material collecting guide roller, the material collecting guide roller is used for collecting the protective film with the completed printing pattern, and the material collecting mechanism is provided with a winding roller group, and the winding roller group is used for winding the protective film.

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