A method and device for producing Fresnel anti-glare screen

Abstract

The invention discloses a method and equipment for producing a Fresnel anti-light screen, and relates to the technical field of projection equipment. The scheme realizes optimization and improvement in many aspects, utilizes electrostatic force to precisely fit the curing material on the surface of the texture film, and performs curing treatment after the texture film is attached and maintained, thereby effectively improving the preparation accuracy and consistency of the product. This step not only eliminates the errors that may be caused by traditional operations, but also ensures the stable combination of the material and the film, avoids the peeling problem that may occur during use, improves the durability and reliability of the product, significantly reduces energy consumption, and improves production efficiency. It not only speeds up the production cycle, but also reduces the negative impact on the environment, and ensures the stability and optical performance of the product under various environmental conditions. This fine material selection and process design make the Fresnel anti-light screen not only superior in optical performance, but also have a long service life and high product consistency. In general, this preparation process not only achieves a major breakthrough in technology, but also has significant advantages in environmental friendliness and economic benefits, providing reliable technical support for the large-scale production of Fresnel anti-light screens, and promoting technological progress and market competitiveness in this field.

Description

Technical Field

[0001] The invention belongs to the technical field of projection equipment, and in particular relates to a production method and equipment for a Fresnel anti-light screen. Background Art

[0002] In modern display technology, projection display is widely used in education, business, home entertainment and other fields because it can provide large-size, high-brightness images. However, the display effect of traditional projection screens is often seriously affected under ambient light conditions, resulting in a decrease in image contrast and clarity, thus affecting the audience's visual experience. In order to solve this problem, Fresnel anti-glare screens came into being. Through special optical design and material selection, Fresnel anti-glare screens effectively focus the projection light and reduce the interference of ambient light, significantly improving the quality of the projected image.

[0003] Although the Fresnel anti-glare screen has significant optical performance advantages, its production process still has some technical difficulties and shortcomings. First, in the existing production process, the coating process of optical coatings and curing materials is prone to uneven thickness, which affects the optical performance and consistency of the screen. Secondly, the texture design of the Fresnel lens requires extremely high processing accuracy, but in the actual production process, due to the limitations of materials and equipment, it is difficult to ensure that each screen can achieve the accuracy required by the design. Furthermore, the traditional production process has cumbersome steps, many manual operations, low production efficiency and high costs, which is difficult to meet the needs of large-scale production. In addition, in the traditional production process, uncured inks and materials are difficult to be effectively recycled, resulting in material waste and increased costs. Finally, some production processes involve high-temperature treatment and the use of chemical solvents, which not only consumes a lot of energy, but also may pollute the environment.

[0004] In summary, in view of the shortcomings of the existing Fresnel anti-glare screen production methods and equipment, it is particularly important to propose an innovative production method and equipment. This new method can not only improve the optical performance and production efficiency of the screen, but also effectively reduce production costs and environmental impact, providing new technical support for the development of the industry.

[0005] In view of this, the present invention is proposed. Summary of the invention

[0006] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0007] A method for producing a Fresnel anti-glare screen, comprising the following steps:

[0008] After cleaning the surface of the substrate, evenly apply a 5-10 micron thick pigment on the surface, heat it to 80-100°C in a dryer, and keep it for 5-10 minutes to solidify the pigment and form a color layer on the surface of the base layer;

[0009] Disperse the micro beads in the solvent to form a uniform suspension, and evenly coat the suspension on the color layer with a coating thickness of 10-20 microns. Heat it to 60-80°C in a dryer and keep it for 10-15 minutes to volatilize the solvent, fix the micro beads, and form a diffusion layer;

[0010] The transparent polymer is heated to 180-200°C to soften it, and the softened polymer is placed in a mold, and a pressure of 5-10 MPa is applied by a hot pressing molding machine for 5-10 minutes to form a cylindrical lens structure;

[0011] The cylindrical lens structure is pasted on the surface of the diffusion layer by UV glue to form a cylindrical lens layer;

[0012] The particles are dispersed in a solvent to form a uniform suspension, and the suspension is evenly coated or sprayed on the cylindrical lens layer with a coating thickness of 5-15 microns. The suspension is heated to 50-70°C in a dryer for 10-20 minutes to volatilize the solvent and fix the particles to form a speckle suppression layer.

[0013] The surface of the speckle suppression layer is evenly covered with a coating curing material, and the surface of the curing material is covered with a texture film;

[0014] Continuously passing static electricity on the symmetrical side of the cured material on the substrate to apply electrostatic force to the cured material and the texture film;

[0015] Perform curing irradiation on the texture film to form a primary Fresnel texture;

[0016] Place the thin film material in a vacuum evaporator or sputtering device and evacuate the inside of the device to 10 -6 Pa, a metal film is uniformly deposited on the surface of the Fresnel lens layer by heating evaporation or sputtering, with a film thickness of 50-100 nanometers;

[0017] Evenly coating or spraying ink on the reflective layer, and curing to form a uniform coating;

[0018] Cut the continuous substrate into sections according to the texture and then laminate it;

[0019] After lamination, quality inspection and packaging can be carried out.

[0020] Preferably, the curing material is formed by mixing one or more of polyurethane acrylate, epoxy acrylate and polymethyl methacrylate with a photoinitiator and photosensitive powder.

[0021] Preferably, the curing irradiation uses light with a wavelength of 365 nm, a light intensity of 10-20 mW / cm², and an irradiation time of 5-10 min.

[0022] Preferably, the ink is a highly transparent weather-resistant ink with a coating thickness of 3-5 microns, a drying temperature of 60-80 degrees Celsius, and a continuous drying time of 10-15 minutes.

[0023] Preferably, the substrate comprises PET, PVC and TPU materials, the microparticles are silica or alumina with a particle size range of 20-100 nanometers, the microbeads are PC or PMMA with a particle size range of 1-10 microns, the transparent polymer is polycarbonate, and the film material is aluminum or silver.

[0024] Preferably, a Fresnel anti-glare screen production device comprises:

[0025] A pre-treatment machine, a Fresnel forming machine, a vacuum evaporation machine, a spraying machine, a cutting machine and a laminating machine are arranged on the surface of the substrate in the processing order;

[0026] The Fresnel forming machine comprises:

[0027] Bracket;

[0028] Coating components;

[0029] The coating assembly is fixedly connected to the inner wall of the support frame and is used to evenly cover the surface of the substrate with the curing material;

[0030] Tensioner;

[0031] The surface of the tensioner is bonded with a texture film, and the texture film is bonded with the upper surface of the solidified material, and the tensioner is used to adjust the contact angle and release area between the texture film and the solidified material;

[0032] Curing components;

[0033] The curing component is disposed on the inner wall of the texture film and is used to penetrate the texture film to perform curing irradiation on the curing material;

[0034] Separate components;

[0035] The separation component is fixedly connected to the inner wall of the support frame, the substrate penetrates and slides on the inner wall of the separation component, and the separation component is used to clean the surface of the Fresnel primary texture;

[0036] Feeding components;

[0037] The material supply assembly is fixedly connected to the upper surface of the coating assembly and is used for the coating assembly to supply curing material and control the thickness of the curing material;

[0038] Input end wheel set;

[0039] First turn node;

[0040] Second turn node;

[0041] The input end wheel set, the first steering node and the second steering node are used for changing the direction of the surface substrate and avoiding interference with adjacent processing steps;

[0042] The first turning node and the second turning node are used for turning over control of the substrate.

[0043] Preferably, the coating assembly comprises a protective shell fixedly connected to the inner wall of the shell, a driving shaft is rotatably penetrated through one side of the protective shell, a pressure roller is fixedly connected to the surface of the driving shaft, an oriented frame is arranged at the other end of the pressure roller, a horizontal plate is fixedly connected to one side of the oriented frame, an electrostatic arc plate is fixedly connected to the surface of the horizontal plate, and the oriented frame is fixedly connected to the surface of the protective shell;

[0044] The electrostatic arc plate is slidably arranged on the inner wall of the pressure roller, and the electrostatic arc plate is in the range of 175-180 degrees on the left side of the inner wall of the pressure roller;

[0045] The inner wall of the protective shell is provided with a plurality of thickness sensors, and an electric controller is fixedly penetrated through one side of the protective shell;

[0046] The electrostatic arc plate is electrically connected to an electrostatic generator, and the electrostatic generator is adhesively connected to an electrostatic adsorption plate, and the electrostatic adsorption plate is arranged below the coating component and the texture film;

[0047] The feeding assembly includes a hopper fixed on the upper surface of the inner wall of the protective shell, the bottom of the hopper is located on the arc-shaped side wall of the pressure roller, one side of the hopper is movably connected to a leveling material control plate through a pin shaft, and the surface of the leveling material control plate is movably connected to an elastic telescopic rod through a pin shaft;

[0048] A threaded drive kit is fixedly connected to one side of the hopper, a movable portion of the threaded drive kit is movably connected to the top end of the elastic telescopic rod via a pin, and a driver for driving the threaded drive kit to operate is fixedly connected to one side of the hopper.

[0049] Preferably, the separation assembly includes a collecting box fixedly connected to the inner wall of the support frame, the inner wall of the collecting box is fixedly connected to a shielding box, the upper surface of the inner wall of the shielding box is fixedly connected to an ultrasonic generator, the bottoms of the collecting box and the shielding box are both inclined, and the bottoms of the collecting box and the shielding box are commonly connected by a guide channel.

[0050] Preferably, the tensioner comprises a tensioning frame fixed to the inner wall of the support frame, both ends of the tensioning frame are installed with super-smooth friction rollers for texture film support, the inner wall of the tensioning frame is provided with two vertical sliding holes, the inner wall of the vertical sliding hole is slidably provided with a tensioning roller, one side of the tensioning frame is movably connected with a third electric telescopic rod through a pin shaft, and the top end of the third electric telescopic rod is slidably provided at one end of the tensioning roller;

[0051] The curing assembly comprises a shielding cover fixed on the inner wall of the support, the inner wall of the shielding cover is fixedly connected with an angle regulating frame, and a plurality of UV lamp groups are arranged below the angle regulating frame.

[0052] Preferably, the first turning node comprises a holder fixedly connected to the inner wall of the support frame, the upper and lower ends of the holder are both provided with first support wheels, and the right side of the holder is provided with a first end wheel;

[0053] The second steering node comprises a side frame fixedly connected to the inner wall of the support frame, the inner wall of the side frame is rotatably provided with a second end wheel and a plurality of second support wheels, the inner wall of the side frame is provided with two guide holes, a traverse wheel is slidably limited in the two guide holes, both ends of the traverse wheel are movably connected to a second electric telescopic rod, and the bottom end of the second electric telescopic rod is movably connected to the surface of the side frame through a pin shaft;

[0054] The input end wheel group includes a fixed roller rotatably fixed to the inner wall of the support frame, deflection arms are slidably provided at both ends of the fixed roller, and a swing roller is rotatably provided at the other end of the deflection arm, and one side of the deflection arm is movably connected to a first electric telescopic rod through a pin shaft, and the bottom end of the first electric telescopic rod is movably connected to the surface of the side frame through a pin shaft.

[0055] Beneficial effects:

[0056] The production method of the Fresnel anti-glare screen has significant beneficial effects in overcoming the technical difficulties and deficiencies in the existing production process. First, by evenly coating the pigment and microbeads on the substrate to form a color layer and a diffusion layer, and using a precisely controlled drying and curing process, the problem of uneven coating thickness can be effectively avoided, thereby improving the optical performance and consistency of the screen. Secondly, the formation of the cylindrical lens structure adopts hot pressing molding technology, and through heating and high-pressure treatment of the transparent polymer, the high processing accuracy of the texture design is ensured, meeting the optical requirements of the Fresnel lens layer.

[0057] In addition, the method optimizes the use of curing materials, using a mixture of polyurethane acrylate (PUA), epoxy acrylate (EAA) and polymethyl methacrylate (PMMA) and other materials, and achieves fast and uniform curing through UV curing, reducing process steps, improving production efficiency, and reducing costs. Precise control of curing irradiation parameters further ensures the quality and consistency of the cured material.

[0058] In the preparation of the reflective layer, vacuum evaporation or sputtering technology is used to evenly deposit aluminum or silver thin film materials to form an efficient reflective layer, which improves the reflective performance of the screen. By spraying highly transparent weather-resistant ink and drying it under controlled temperature and time conditions, the transparency and durability of the ink layer are ensured, thereby further improving the display effect of the screen.

[0059] This method also excels in environmental protection and resource utilization. By optimizing process parameters and using harmless solvents, high-temperature treatment and the use of chemical solvents are reduced, which reduces energy consumption and environmental pollution. At the same time, the effective recycling of uncured materials reduces material waste and production costs.

[0060] To sum up, during the production process of the Fresnel anti-glare screen, while ensuring the optical performance, the thickness data is accurately detected by the thickness sensor after the coating component is evenly applied. Then, under the action of electrostatic force, the texture film adheres to the surface of the curing material and moves accordingly to maintain the UV curing operation of the curing component. This not only overcomes the problems of uneven thickness, difficult to ensure processing accuracy, low production efficiency, high cost, material waste and environmental pollution in the existing process, but also realizes efficient, environmentally friendly and high-quality production, providing a feasible solution for large-scale industrial production.

[0061] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0062] In the attached picture:

[0063] Figure 1 This is a schematic diagram of the preparation process of the present invention;

[0064] Figure 2 This is a schematic diagram of the Fresnel lens layer molding structure of the present invention;

[0065] Figure 3 It is a schematic diagram of the explosion structure of the Fresnel anti-glare screen of the present invention;

[0066] Figure 4 It is a three-dimensional structural schematic diagram of the Fresnel forming machine of the present invention;

[0067] Figure 5 It is a three-dimensional structural schematic diagram of the Fresnel forming machine of the present invention from another perspective;

[0068] Figure 6 It is a schematic diagram of a three-dimensional cross-sectional structure of the Fresnel forming machine of the present invention;

[0069] Figure 7 It is a schematic diagram of the cross-sectional structure of the Fresnel forming machine after the support frame of the present invention is removed;

[0070] Figure 8It is a three-dimensional structural diagram of the input end wheel set and the second steering node of the present invention;

[0071] Fig. 9 It is a schematic diagram of the explosion structure of the separation assembly of the present invention;

[0072] Fig.10 It is a three-dimensional structural schematic diagram of the tensioner and the curing assembly in the matching state of the present invention;

[0073] Fig.11 It is a schematic diagram of the three-dimensional cross-sectional structure of the coating assembly of the present invention;

[0074] Fig.12 It is a three-dimensional structural schematic diagram of the feeding assembly of the present invention.

[0075] In the figure: 1, support frame; 2, input end wheel group; 21, deflection arm; 22, first electric telescopic rod; 23, swing roller; 24, fixed roller; 3, second turning node; 31, side frame; 32, second end wheel; 33, second support wheel; 34, second electric telescopic rod; 35, transverse wheel; 36, guide hole; 4, first turning node; 41, retaining frame; 42, first end wheel; 43, first support wheel; 5, coating assembly; 51, protective shell; 52, drive shaft; 53, pressure roller; 54, directional frame; 55, cross plate; 56, electrostatic arc plate; 57, electric controller; 58, thickness sensor; 6, feeding assembly; 61, hopper; 62, Threaded drive kit; 63. Driver; 64. Elastic telescopic rod; 65. Leveling control plate; 7. Curing assembly; 71. Shielding cover; 72. Angle adjustment frame; 73. UV lamp group; 8. Tensioner; 81. Tensioning frame; 82. Super-smooth friction roller; 83. Tensioning roller; 84. Vertical slide hole; 85. Third electric telescopic rod; 9. Separation assembly; 91. Collection box; 92. Shielding box; 93. Ultrasonic generator; 94. Guide channel; 10. Texture film; 11. Electrostatic adsorption plate; 12. Electrostatic generator; 13. Vacuum evaporation machine; 14. Sprayer; 15. Cutting machine; 16. Laminating machine; 17. Pre-treatment machine. DETAILED DESCRIPTION

[0076] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention.

[0077] like Figures 1 to 12 As shown, a method for producing a Fresnel anti-glare screen includes the following methods:

[0078] Clean the substrate surface with an appropriate cleaning agent (such as isopropyl alcohol) to ensure it is free of dust, oil and impurities.

[0079] The pigment is evenly coated on the cleaned substrate surface with a thickness of 5-10 microns.

[0080] Send the substrate into the dryer, heat it to 80-100℃, and keep it for 5-10 minutes to solidify the pigment to form a color layer.

[0081] Microbeads (such as PC or PMMA microbeads) are dispersed in a solvent to form a uniform suspension.

[0082] The suspension is evenly coated on the color layer with a coating thickness of 10-20 microns.

[0083] The coated substrate is sent into a drying machine and heated to 60-80°C for 10-15 minutes to allow the solvent to evaporate, the microbeads to be fixed, and a diffusion layer to be formed.

[0084] Heat a transparent polymer (such as polycarbonate) to 180-200°C to soften it.

[0085] The softened polymer is placed in a mold and pressure (5-10 MPa) is applied by a hot press molding machine and maintained for 5-10 minutes to form a cylindrical lens structure.

[0086] The formed cylindrical lens structure is adhered to the surface of the diffusion layer by UV glue to form a cylindrical lens layer.

[0087] Microparticles such as silicon dioxide (SiO2) or aluminum oxide (Al2O3) are dispersed in a solvent to form a uniform suspension.

[0088] The suspension is evenly coated or sprayed on the cylindrical lens layer with a coating thickness of 5-15 microns.

[0089] The coated substrate is sent to a drying machine and heated to 50-70°C for 10-20 minutes to evaporate the solvent and fix the particles to form a speckle suppression layer.

[0090] The surface of the speckle suppression layer is evenly covered with a coating of a curing material.

[0091] The surface of the solidified material is covered with the texture film 10 and static electricity is applied thereto by electrostatic force.

[0092] The texture film 10 is cured by irradiation, using light with a wavelength of 365 nm, a light intensity of 10-20 mW / cm², and an irradiation time of 5-10 minutes to form a Fresnel primary texture.

[0093] Place the substrate in a vacuum evaporator 13 or sputtering device and evacuate to 10 -6 Below Pa.

[0094] A metal film (such as aluminum or silver) is uniformly deposited on the surface of the Fresnel lens layer by heating evaporation or sputtering, with a film thickness of about 50-100 nanometers.

[0095] Evenly coat or spray highly transparent weather-resistant ink on the metal film.

[0096] The ink-coated substrate is sent to the drying equipment at a drying temperature of 60-80 degrees Celsius for 10-15 minutes to solidify and form a uniform reflective layer.

[0097] Cut the continuous substrate in sections according to the grain.

[0098] Use aluminum honeycomb panels or other lightweight composite materials for lamination.

[0099] After lamination, quality inspection is carried out, including thickness inspection, optical performance inspection and adhesion test.

[0100] Finally, packaging is carried out to ensure the stability and durability of the product.

[0101] Clean the substrate using a suitable cleaning agent (such as isopropyl alcohol) to ensure it is free of dust, oil and impurities.

[0102] If necessary, a protective coating can be added to the metal film to enhance wear resistance and chemical stability. The protective coating material is a transparent protective ink containing a hardener or an anti-UV additive.

[0103] Quality checks include:

[0104] Thickness detection:

[0105] Use thickness measuring instruments to check coating thickness to ensure uniformity and consistency.

[0106] Optical performance testing:

[0107] Inspect the optical properties of coatings, including transmittance, reflectance and gloss.

[0108] Adhesion test:

[0109] Perform an adhesion test to ensure that the coating is firmly attached to the substrate.

[0110] Test method: scratch test or tensile test.

[0111] The segment cutting accuracy is ±0.1 mm.

[0112] The lamination is performed by using aluminum honeycomb panels or other lightweight composite materials with suitable strength, including but not limited to glass fiber panels, wooden boards, carbon fiber frames or steel frames.

[0113] In the above, the adhesive layer is formed by curing the UV glue to enhance the structural strength, which mainly serves as a transition for connection.

[0114] Specifically, Figures 2 to 11 Shown: A Fresnel anti-glare screen production device, comprising:

[0115] A pre-treatment machine 17, a Fresnel forming machine, a vacuum evaporation machine 13, a spraying machine 14, a cutting machine 15 and a laminating machine 16 are arranged on the surface of the substrate in the processing order;

[0116] The pre-processor 17 can perform preliminary cleaning on the surface of the speckle suppression layer to ensure the stability of subsequent processing.

[0117] Fresnel forming machine includes:

[0118] The coating assembly 5 is fixedly connected to the inner wall of the support frame 1 and is used to evenly cover the surface of the substrate with the curing material;

[0119] The surface of the tensioner 8 is bonded with a texture film 10, and the texture film 10 is bonded with the upper surface of the solidified material. The tensioner 8 is used to adjust the contact angle and release area between the texture film 10 and the solidified material.

[0120] The curing component 7 is disposed on the inner wall of the texture film 10 and is used to penetrate the surface texture of the texture film 10 and perform local curing irradiation on the curing material;

[0121] The separation component 9 is fixedly connected to the inner wall of the support frame 1, and the substrate passes through and slides on the inner wall of the separation component 9. The separation component 9 is used to clean the surface of the Fresnel primary texture;

[0122] The material supply component 6 is fixedly connected to the upper surface of the coating component 5, and is used for the coating component 5 to supply the curing material and control the thickness of the curing material;

[0123] The input end wheel set 2, the first turning node 4 and the second turning node 3 are used for changing the direction of the surface substrate and avoiding interference with adjacent processing steps;

[0124] The first turning node 4 and the second turning node 3 are used for turning over control of the substrate.

[0125] Through the precise coordination of the coating component 5 and the feeding component 6, the surface of the substrate can be evenly coated with the curing material, ensuring that the coating thickness is between 5-10 microns. Using a mixture of one or more of polyurethane acrylate, epoxy acrylate and polymethyl methacrylate with a photoinitiator and photosensitive powder as the curing material can maintain uniform distribution of the curing material under continuous electrostatic action, avoiding the uneven thickness and scattered materials problems in traditional processes, and greatly improving the coating uniformity and finished product accuracy.

[0126] By applying electrostatic force between the curing material and the texture film 10, it is ensured that the texture film 10 can be evenly and tightly attached to the surface of the curing material. In conjunction with the UV light irradiation with a wavelength of 365 nm in the curing component 7, it can efficiently cure to form a high-precision Fresnel primary texture within 5-10 minutes, ensuring the clarity and consistency of the texture, providing a high-quality foundation for subsequent processing.

[0127] The method designs a separation component 9 for separating and recycling uncured solidified material, which significantly reduces material waste and improves material utilization. Compared with traditional processes, the method is more environmentally friendly and reduces production costs.

[0128] Use highly transparent weather-resistant ink and form a uniform coating on the surface of the Fresnel primary texture through a roller coating process. The ink coating thickness is controlled at 3-5 microns, the drying temperature is 60-80°C, and the drying time is 10-15 minutes. The ink layer not only optimizes the surface texture and improves the optical effect, but also enhances the weather resistance and durability of the screen and extends the product life.

[0129] The production equipment includes a pre-processing machine 17, a Fresnel forming machine, a vacuum evaporation machine 13, a spraying machine 14, a cutting machine 15 and a laminating machine 16, etc., which realize the automation and continuous production of each step. In particular, the design of the turning node effectively avoids the interference of adjacent processing steps, realizes the turning control and uniform transmission of the substrate, and significantly improves the production efficiency and product consistency.

[0130] Through the reasonable design of the equipment, various parameters (such as coating thickness, curing time, UV light intensity, etc.) in the production process can be flexibly adjusted to meet the needs of different application scenarios and product specifications. The flexible design of each component, such as the angle adjustment frame 72 of the tensioner 8 and the curing component 7, improves the adaptability and operability of the production process.

[0131] Through precise process control and efficient equipment utilization, the Fresnel anti-glare screen produced has excellent optical performance, mechanical strength and service life. The equipment is equipped with quality inspection and packaging processes to ensure that every screen shipped meets high quality standards.

[0132] Compared with traditional high-temperature treatment methods, UV curing technology is more energy-saving and environmentally friendly. UV curing is not only highly efficient, but also avoids potential damage to the substrate and coating by high temperature, reducing energy consumption and environmental pollution.

[0133] The introduction of automated equipment greatly simplifies the operation difficulty and reduces the impact of human factors on product quality. Operators only need to perform simple settings and monitoring, which greatly reduces labor intensity and training costs.

[0134] In summary, through a series of innovative designs, this production method and equipment achieves high efficiency, high quality and high consistency in the production of Fresnel anti-glare screens, has significant economic and environmental benefits, and provides the market with competitive high-quality products.

[0135] Specifically, Fig.10 and Fig.11 As shown: the coating assembly 5 includes a protective shell 51 fixedly connected to the inner wall of the shell, a driving shaft 52 is rotatably penetrated on one side of the protective shell 51, a pressure roller 53 is fixedly connected to the surface of the driving shaft 52, an orientation frame 54 is arranged at the other end of the pressure roller 53, a horizontal plate 55 is fixedly connected to one side of the orientation frame 54, an electrostatic arc plate 56 is fixedly connected to the surface of the horizontal plate 55, and the orientation frame 54 is fixedly connected to the surface of the protective shell 51;

[0136] The electrostatic arc plate 56 is slidably arranged in contact with the inner wall of the pressure roller 53, and the contact area of ​​the electrostatic arc plate 56 is within the range of 175-180 degrees on the left side of the inner wall of the pressure roller 53;

[0137] The inner wall of the protective shell 51 is provided with a plurality of thickness sensors 58, and an electric controller 57 is fixedly penetrated through one side of the protective shell 51;

[0138] The electrostatic arc plate 56 is electrically connected to the electrostatic generator 12, and the electrostatic generator 12 is adhesively connected to the electrostatic adsorption plate 11, and the electrostatic adsorption plate 11 is arranged below the coating component 5 and the texture film 10;

[0139] During use, the electrostatic generator 12 generates static electricity on the electrostatic adsorption plate 11 and the electrostatic arc plate 56 at the same time. At this time, the electrostatic arc plate 56 is attached to one side of the inner wall of the pressure roller 53, so that static electricity exists on half of the surface of the pressure roller 53. The change in the size of the static electricity can control the adsorption capacity of the pressure roller 53. At the same time, the pressure roller 53 moves the solidified material adsorbed on the surface to the bottom and loses the influence of the static electricity.

[0140] The solidified material falling on the surface of the substrate maintains its shape stably on the surface of the substrate under the action of the electrostatic adsorption plate 11, and the subsequent processing is carried out after the thickness is detected to be uniform by the thickness sensor 58. If the thickness exceeds the error value, an alarm is issued to ensure the yield rate.

[0141] Specifically, Fig.11 As shown: the feeding assembly 6 includes a hopper 61 fixed on the upper surface of the inner wall of the protective shell 51, the bottom of the hopper 61 is located at the arc-shaped side wall of the pressure roller 53, one side of the hopper 61 is movably connected to a leveling control plate 65 through a pin shaft, and the surface of the leveling control plate 65 is movably connected to an elastic telescopic rod 64 through a pin shaft;

[0142] A threaded drive kit 62 is fixedly connected to one side of the hopper 61 . The movable portion of the threaded drive kit 62 is movably connected to the top of the elastic telescopic rod 64 via a pin shaft. A driver 63 for driving the threaded drive kit 62 is fixedly connected to one side of the hopper 61 .

[0143] The screw drive kit 62 is controlled by the driver 63 so that the top position of the elastic telescopic rod 64 can be changed, and the deflection angle of the bottom material control plate can be changed, thereby controlling the discharge speed of the hopper 61 and adjusting the thickness of the solidified material on the surface of the pressure roller 53.

[0144] Specifically, Figure 6 and Figure 8 As shown: the separation component 9 includes a collecting box 91 fixedly connected to the inner wall of the support frame 1, a shielding box 92 is fixedly connected to the inner wall of the collecting box 91, an ultrasonic generator 93 is fixedly connected to the upper surface of the inner wall of the shielding box 92, the bottoms of the collecting box 91 and the shielding box 92 are both inclined, and the bottoms of the collecting box 91 and the shielding box 92 are commonly connected to a guide channel 94.

[0145] The collecting box 91 and the shielding box 92 together form a closed space. After the ultrasonic generator 93 is started, the substrate is immersed in the cleaning solution in the collecting box with vibration to remove the uncured solidified material on the surface and recover it through the guide channel 94. The shielding box 92 can reduce the impact of the ultrasonic generator 93 on the outside and maintain a semi-closed protective state.

[0146] Specifically, Figure 6 As shown: the tensioner 8 includes a tensioning frame 81 fixed to the inner wall of the support frame 1, and both ends of the tensioning frame 81 are installed with super-smooth friction rollers 82 for supporting the textured film 10, and the inner wall of the tensioning frame 81 is provided with two vertical sliding holes 84, and the inner wall of the vertical sliding hole 84 is slidably provided with a tensioning roller 83, and one side of the tensioning frame 81 is movably connected with a third electric telescopic rod 85 through a pin shaft, and the top end of the third electric telescopic rod 85 is slidably provided at one end of the tensioning roller 83;

[0147] The curing assembly 7 comprises a shielding cover 71 fixed on the inner wall of the support, the inner wall of the shielding cover 71 is fixedly connected with an angle adjustment frame 72 , and a plurality of UV lamp groups 73 are arranged below the angle adjustment frame 72 .

[0148] The tensioner 8 can keep the texture film 10 sliding stably under the action of two ultra-smooth friction rollers 82. The texture film 10 is adsorbed by electrostatic force and then moved by a friction force. In this process, the texture film 10 slides with the two ultra-smooth friction rollers 82. When the precision control is high, the ultra-smooth friction rollers 82 need to be installed with a stepper motor to cooperate with the drive to ensure that the precision is further improved. At the same time, the height change of the tensioning roller 83 in the vertical sliding hole 84 can be controlled by the third electric telescopic rod 85 to press the texture film 10. The contact angle between the bottom of the texture film 10 and the substrate can be changed and adjusted, and the contact surface can also be controlled to increase and decrease.

[0149] Specifically, Figure 8 As shown: the first turning node 4 comprises a holder 41 fixedly connected to the inner wall of the support frame 1, the upper and lower ends of the holder 41 are provided with first support wheels 43, and the right side of the holder 41 is provided with a first end wheel 42;

[0150] The first turning node 4 uses the first end wheel 42 as the main turning point, and the two first support wheels 43 assist, so that it can ensure that the substrate completes the initial flipping at a safe bending angle.

[0151] Specifically, Figure 7 As shown: the second turning node 3 includes a side frame 31 fixedly connected to the inner wall of the support frame 1, the inner wall of the side frame 31 is rotatably provided with a second end wheel 32 and a plurality of second support wheels 33, the inner wall of the side frame 31 is provided with two guide holes 36, a traverse wheel 35 is slidably limited in the two guide holes 36, both ends of the traverse wheel 35 are movably connected to a second electric telescopic rod 34, and the bottom end of the second electric telescopic rod 34 is movably connected to the surface of the side frame 31 through a pin shaft;

[0152] Through the second steering structure and the second electric telescopic rod 34, the substrate can be turned over again after cleaning, so that it can be convenient for subsequent processing after being straightened. At the same time, the second electric telescopic rod 34 drives the transverse wheel 35 to slide in the guide hole 36, so as to adjust the angle of the substrate. The angle can be adjusted according to the substrate of different materials. The larger the angle, the lower the vibration transmission, which can ensure that different processing steps will not affect each other.

[0153] Specifically, Figure 7 As shown: the input end wheel group 2 includes a fixed roller 24 rotatably fixed to the inner wall of the support frame 1, deflection arms 21 are slidably provided at both ends of the fixed roller 24, and a swing roller 23 is rotatably provided at the other end of the deflection arm 21, and one side of the deflection arm 21 is movably connected to a first electric telescopic rod 22 through a pin shaft, and the bottom end of the first electric telescopic rod 22 is movably connected to the surface of the side frame 31 through a pin shaft.

[0154] The first electric telescopic rod 22 can control the deflection of the deflection arm 21. When the fixed roller 24 does not move, the position of the swing roller 23 on its surface changes, and the input angle of the substrate can be adjusted.

[0155] The equipment of this solution performs multiple bending and transmission on the substrate. In other embodiments, this solution includes horizontal and continuous processing operations.

[0156] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A method for producing a Fresnel anti-glare screen, characterized in that: The following methods are included: After cleaning the surface of the substrate, evenly apply a 5-10 micron thick pigment on the surface, heat it to 80-100°C in a dryer, and keep it for 5-10 minutes to solidify the pigment and form a color layer on the surface of the base layer; Disperse the micro beads in the solvent to form a uniform suspension, and evenly coat the suspension on the color layer with a coating thickness of 10-20 microns. Heat it to 60-80°C in a dryer and keep it for 10-15 minutes to volatilize the solvent, fix the micro beads, and form a diffusion layer; The transparent polymer is heated to 180-200°C to soften it, and the softened polymer is placed in a mold, and a pressure of 5-10 MPa is applied by a hot pressing molding machine for 5-10 minutes to form a cylindrical lens structure; The cylindrical lens structure is pasted on the surface of the diffusion layer by UV glue to form a cylindrical lens layer; The particles are dispersed in a solvent to form a uniform suspension, and the suspension is evenly coated or sprayed on the cylindrical lens layer with a coating thickness of 5-15 microns. The suspension is heated to 50-70°C in a dryer for 10-20 minutes to volatilize the solvent and fix the particles to form a speckle suppression layer. The surface of the speckle suppression layer is evenly covered with a coating of a curing material, and the surface of the curing material is covered with a texture film (10); Continuously passing static electricity on the symmetrical side of the solidified material on the substrate to apply electrostatic force to the solidified material and the textured film (10); Performing curing irradiation on the texture film (10) to form a primary Fresnel texture; Place the thin film material in a vacuum evaporator or sputtering device and evacuate the inside of the device to 10 -6 Pa, a metal film is uniformly deposited on the surface of the Fresnel lens layer by heating evaporation or sputtering, with a film thickness of 50-100 nanometers; The ink is evenly coated or sprayed on the metal film and solidified to form a uniform reflective layer; the ink is a highly transparent weather-resistant ink with a coating thickness of 3-5 microns, a drying temperature of 60-80 degrees Celsius, and a continuous drying time of 10-15 minutes; Cut the continuous substrate into sections according to the texture and then laminate it; After lamination, quality inspection and packaging can be carried out.

2. The method for producing a Fresnel anti-glare screen according to claim 1, characterized in that: The curing material is prepared by mixing one or more of polyurethane acrylate, epoxy acrylate and polymethyl methacrylate with a photoinitiator and photosensitive powder.

3. The method for producing a Fresnel anti-glare screen according to claim 1, characterized in that: The curing irradiation uses light with a wavelength of 365 nm, a light intensity of 10-20 mW / cm², and an irradiation time of 5-10 min.

4. The method for producing a Fresnel anti-glare screen according to claim 1, characterized in that: The substrate is PET, PVC or TPU material, the particles are silicon dioxide or aluminum oxide with a particle size range of 20-100 nanometers, the microbeads are PC or PMMA with a size range of 1-10 micrometers, the transparent polymer is polycarbonate, and the film material is aluminum or silver.

5. A Fresnel anti-glare screen production device, used in the Fresnel anti-glare screen production method according to any one of claims 1 to 4, characterized in that: include: A pre-treatment machine (17), a Fresnel forming machine, a vacuum evaporation machine (13), a spraying machine (14), a cutting machine (15) and a laminating machine (16) are arranged on the surface of the substrate in the order of processing; The Fresnel forming machine comprises: Support frame (1); Coating component (5); The coating assembly (5) is fixedly connected to the inner wall of the support frame (1) and is used to evenly cover the surface of the substrate with the curing material; The coating assembly (5) comprises a protective shell (51) fixedly connected to the inner wall of the shell, a driving shaft (52) rotatably passing through one side of the protective shell (51), a pressure roller (53) fixedly connected to the surface of the driving shaft (52), an orientation frame (54) being provided at the other end of the pressure roller (53), a transverse plate (55) fixedly connected to one side of the orientation frame (54), an electrostatic arc plate (56) fixedly connected to the surface of the transverse plate (55), and the orientation frame (54) being fixedly connected to the surface of the protective shell (51); The electrostatic arc plate (56) is slidably arranged in contact with the inner wall of the pressure roller (53), and the contact area of ​​the electrostatic arc plate (56) is within a range of 175-180 degrees on the left side of the inner wall of the pressure roller (53); A plurality of thickness sensors (58) are provided on the inner wall of the protective shell (51), and an electric controller (57) is fixedly penetrated through one side of the protective shell (51); The electrostatic arc plate (56) is electrically connected to an electrostatic generator (12), the electrostatic generator (12) is adhesively connected to an electrostatic adsorption plate (11), and the electrostatic adsorption plate (11) is arranged below the coating component (5) and the texture film (10); Tensioner (8); The surface of the tensioner (8) is bonded with a textured film (10), and the textured film (10) is bonded with the upper surface of the solidified material, and the tensioner (8) is used to adjust the contact angle and release area between the textured film (10) and the solidified material; The tensioner (8) comprises a tensioning frame (81) fixed to the inner wall of the support frame (1), and super-smooth friction rollers (82) for supporting the textured film (10) are installed at both ends of the tensioning frame (81), and two vertical sliding holes (84) are provided on the inner wall of the tensioning frame (81), and a tensioning roller (83) is slidably arranged on the inner wall of the vertical sliding hole (84), and a third electric telescopic rod (85) is movably connected to one side of the tensioning frame (81) via a pin shaft, and the top end of the third electric telescopic rod (85) is slidably arranged on one end of the tensioning roller (83); Curing components (7); The curing component (7) is disposed on the inner wall of the texture film (10) and is used to penetrate the texture film (10) to perform curing irradiation on the curing material; The curing assembly (7) comprises a shielding cover (71) fixed to the inner wall of the support member, the inner wall of the shielding cover (71) is fixedly connected to an angle adjustment frame (72), and a plurality of UV lamp groups (73) are arranged below the angle adjustment frame (72); Separation component (9); The separation component (9) is fixedly connected to the inner wall of the support frame (1), the substrate penetrates and slides on the inner wall of the separation component (9), and the separation component (9) is used to clean the surface of the Fresnel primary texture; The separation assembly (9) comprises a collection box (91) fixedly connected to the inner wall of the support frame (1); a shielding box (92) is fixedly connected to the inner wall of the collection box (91); an ultrasonic generator (93) is fixedly connected to the upper surface of the inner wall of the shielding box (92); the bottoms of the collection box (91) and the shielding box (92) are both arranged in an inclined manner, and the bottoms of the collection box (91) and the shielding box (92) are connected to a guide channel (94); Feeding assembly (6); The material supply component (6) is fixedly connected to the upper surface of the coating component (5) and is used for supplying curing material to the coating component (5) and controlling the thickness of the curing material; The feeding assembly (6) comprises a hopper (61) fixed to the upper surface of the inner wall of the protective shell (51), the bottom of the hopper (61) is located on the arc-shaped side wall of the pressure roller (53), one side of the hopper (61) is movably connected to a leveling material control plate (65) via a pin, and the surface of the leveling material control plate (65) is movably connected to an elastic telescopic rod (64) via a pin; A threaded drive kit (62) is fixedly connected to one side of the hopper (61); a movable portion of the threaded drive kit (62) is movably connected to the top of the elastic telescopic rod (64) via a pin; and a driver (63) for driving the threaded drive kit (62) to operate is fixedly connected to one side of the hopper (61); Input end wheel set (2); First turn node (4); Second turning node (3); The input end wheel set (2), the first steering node (4) and the second steering node (3) are used for changing the direction of transmission of the substrate and avoiding interference with adjacent processing steps; The first turning node (4) and the second turning node (3) are used for turning over control of the substrate; The first steering node (4) comprises a retaining frame (41) fixedly connected to the inner wall of the support frame (1), the upper and lower ends of the retaining frame (41) are both provided with first support wheels (43), and the right side of the retaining frame (41) is provided with a first end wheel (42); The second steering node (3) comprises a side frame (31) fixedly connected to the inner wall of the support frame (1); the inner wall of the side frame (31) is rotatably provided with a second end wheel (32) and a plurality of second support wheels (33); the inner wall of the side frame (31) is provided with two guide holes (36); a transverse wheel (35) is provided in the two guide holes (36) for common limited sliding movement; both ends of the transverse wheel (35) are movably connected to a second electric telescopic rod (34); the bottom end of the second electric telescopic rod (34) is movably connected to the surface of the side frame (31) via a pin shaft; The input end wheel group (2) comprises a fixed roller (24) rotatably fixed to the inner wall of the support frame (1), a deflection arm (21) is slidably provided at both ends of the fixed roller (24), a swing roller (23) is rotatably provided at the other end of the deflection arm (21), one side of the deflection arm (21) is movably connected to a first electric telescopic rod (22) via a pin shaft, and the bottom end of the first electric telescopic rod (22) is movably connected to the surface of the side frame (31) via a pin shaft.

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