Manufacturing method of high-transparency glass panel monitoring camera

Abstract

The invention discloses a manufacturing method of a high-transparency glass panel monitoring camera. The manufacturing method comprises the following steps: S1, mixing glass raw materials; s2, melting and clarifying: heating the mixed glass raw materials to 1350-1500 DEG C, and melting and clarifying to obtain a glass stock solution; s3, preliminary forming: leading out the glass stock solution, cooling the glass stock solution to 1000-1250 DEG C, and forming the glass stock solution through a glass cover mold to obtain a parison; s4, secondary forming is carried out; and S5, film coating: mixing the raw materials of the anti-reflection coating, coating the glass cover substrate with the mixed solution, and finally performing curing and cooling molding. According to the invention, the problems that the surface light reflectivity of a common monitoring camera glass cover manufacturing and forming structure is high, the internal light is easy to absorb, the transmittance is low, the transparency of the glass cover is low, and the requirement of high definition of camera images cannot be met can be solved.

Description

Technical Field

[0001] The invention relates to the technical field of surveillance camera manufacturing, in particular to a method for manufacturing a high-transparency glass panel surveillance camera. Background Art

[0002] High-definition security cameras are professional video surveillance cameras in the monitoring field. The images taken by high-definition security cameras are high-definition and easy to operate and install, which greatly reduces the cost of engineering wiring and construction. Therefore, high-definition security cameras are widely used in banks, docks, office buildings, airports and other places that require high-quality image monitoring and transmission. In addition, they also have unique advantages in monitoring transportation systems such as roads and checkpoints.

[0003] High-definition security cameras generally include a housing, a camera assembly inside the housing, and a glass cover installed on the housing surface facing the camera assembly. The glass cover protects the high-definition security camera. Due to the requirements for image clarity when the camera is used, the glass cover also has high transparency requirements. However, the surface light reflectivity of the common surveillance camera glass cover manufacturing structure is high, and the light inside is easily absorbed and has low transmittance, which makes the glass cover low in transparency and cannot meet the camera's requirements for high-definition image acquisition. Summary of the invention

[0004] The purpose of the present invention is to provide a method for manufacturing a high-transparency glass panel surveillance camera in order to solve the problem that the surface light reflectivity of the common surveillance camera glass cover manufacturing molding structure is high and the internal light is easily absorbed and has a low transmittance, resulting in low transparency of the glass cover and being unable to meet the requirement of high-definition camera image acquisition.

[0005] In order to achieve the above object, the present invention adopts the following technical solution: a method for manufacturing a highly transparent glass panel surveillance camera, comprising the following steps:

[0006] S1. Mixing glass raw materials: accurately weigh the glass raw materials according to the set ratio using an electronic scale, and fully mix the components in a reactor into which protective gas is introduced;

[0007] S2, melting and clarifying: heating the mixed glass raw materials to 1350-1500°C to melt and clarify them to obtain glass stock solution;

[0008] S3, preliminary molding: the glass stock solution is led out, cooled to 1000-1250°C, and molded through a glass cover mold to obtain a preform;

[0009] S4, secondary molding: rolling, secondary cooling, annealing, nozzle cutting and shaping the preform to obtain a glass cover substrate;

[0010] S5, coating: mixing the anti-reflection coating raw materials, and coating the mixed liquid on the glass cover substrate, and finally curing and cooling to form.

[0011] As a further description of the above technical solution:

[0012] The glass raw materials in step S1 include SiO2, Al2O3, MgO, CaO, Na2O, FeO, and Fe2O3, and the corresponding mass ratios are: (60-75): (0.5-3): (5-10): (5-10): (12-18): (0.01-2): (0.01-2), and the glass raw materials also include magnesium-aluminum-iron ternary hydrotalcite, and the interlayer negative ions of the magnesium-aluminum-iron ternary hydrotalcite are carbonates, in which the iron element is divalent.

[0013] As a further description of the above technical solution:

[0014] The glass raw materials in step S1 also include iron powder and high-boiling-point alcohol compounds and ketone compounds.

[0015] As a further description of the above technical solution:

[0016] The anti-reflection coating raw materials in step S5 include an organosilicon compound, an alcohol compound and a ketone compound stirred and mixed with an alkaline or acidic catalyst and deionized water.

[0017] The corresponding molar ratio is 1:(5-80):(0.05-1).

[0018] As a further description of the above technical solution:

[0019] The organosilicon compound is silicon alkoxide.

[0020] As a further description of the above technical solution:

[0021] The alcohol compound is one or more of polyvinyl alcohol and polyethylene glycol.

[0022] As a further description of the above technical solution:

[0023] The ketone compound is one or more of pentanedione, isohexanone and n-butyl ketone.

[0024] As a further description of the above technical solution:

[0025] The curing process of the anti-reflection coating material on the glass cover substrate in step S5 includes a primary curing at 90-120° C. for 25-45 minutes and a secondary curing at 450-550° C. for 60-180 minutes.

[0026] As a further description of the above technical solution:

[0027] The anti-reflection coating on the surface of the glass cover after coating in step S5 has a refractive index of 1.18-1.20 and a thickness of 10-70 nm.

[0028] In summary, due to the adoption of the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0029] The manufacturing method improves the light transmittance inside the glass cover substrate by adjusting the component proportion of glass raw materials, adding hydrotalcite with ferrous ions therein, and coordinating with ferric ions, and plays a certain role in absorbing and blocking infrared and ultraviolet high-energy light, thereby avoiding the problems of overheating and unstable operation of the surveillance camera due to light irradiation; an anti-reflection coating is arranged on the surface of the glass cover to ensure low reflection and high transmittance when light enters the surface of the glass cover, and the coating is evenly and reticularly distributed on the surface of the glass cover by designing its components, their proportions, and curing parameters, thereby ensuring high transparency and consistent thickness of the glass cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0031] Figure 1 The present invention is a process flow chart of a method for manufacturing a highly transparent glass panel surveillance camera. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0034] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0036] In the description of the embodiments of the present invention, it should be noted that the terms "upper", "inner", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are directions or positional relationships in which the inventive product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0037] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] See also Figure 1 The present invention provides a technical solution: a method for manufacturing a highly transparent glass panel surveillance camera, comprising the following steps:

[0039] S1. Mixing glass raw materials: accurately weigh the glass raw materials according to the set ratio using an electronic scale, and fully mix the components in a reactor into which protective gas is introduced;

[0040] S2, melting and clarifying: heating the mixed glass raw materials to 1350-1500°C to melt and clarify them to obtain glass stock solution;

[0041] S3, preliminary molding: the glass stock solution is led out, cooled to 1000-1250°C, and molded through a glass cover mold to obtain a preform;

[0042] S4, secondary molding: rolling, secondary cooling, annealing, nozzle cutting and shaping the preform to obtain a glass cover substrate;

[0043] S5, coating: mixing the anti-reflection coating raw materials, and coating the mixed liquid on the glass cover substrate, and finally curing and cooling to form.

[0044] The glass raw materials in step S1 include SiO2, Al2O3, MgO, CaO, Na2O, FeO, and Fe2O3, and the corresponding mass ratios are: (60-75): (0.5-3): (5-10): (5-10): (12-18): (0.01-2): (0.01-2), and the glass raw materials also include magnesium-aluminum-iron ternary hydrotalcite, and the interlayer negative ions of the magnesium-aluminum-iron ternary hydrotalcite are carbonates, in which the iron element is divalent.

[0045] The manufacturing method of the present invention adds a certain proportion of ferric ions and ferrous ions to the glass raw material, so that the glass has high transmittance to visible light and the ability to absorb infrared and ultraviolet light, and the glass cover blocks it to prevent it from entering the camera and causing the camera to be overheated due to the influence of external light.

[0046] The glass raw materials in step S1 also include iron powder and high-boiling-point alcohol compounds and ketone compounds. Through this formula design, the iron powder and alcohol compounds can react with internal oxidizing substances under the high temperature environment of the glass raw material melting, clarification and molding process, avoiding the reaction of ferrous ions and affecting the transparency and heat insulation capacity of the finished glass cover, and the oxidation of iron powder can supplement the ferrous ion content in the glass cover, thereby ensuring the performance of the finished glass cover.

[0047] The specific reaction mechanism of the glass raw materials in step S2-4 is as follows: the magnesium-aluminum-iron ternary hydrotalcite can provide a sufficient and stable amount of ferrous ions, and the ferrous ions can maintain higher stability in the form of the magnesium-aluminum-iron ternary hydrotalcite; as the glass raw materials are heated and melted, the magnesium-aluminum-iron ternary hydrotalcite is dehydrated, and then the magnesium-aluminum-iron ternary hydrotalcite undergoes dehydroxylation and decarbonation, and the corresponding magnesium-aluminum-iron elements form corresponding oxides or oxygen-containing salts; the temperature is very high during decarbonation, and before this, the magnesium-aluminum-iron ternary hydrotalcite can maintain a relatively stable layered structure, thereby avoiding oxidation of ferrous ions during the initial heating and melting process of the glass raw materials; as the changes in decarbonation occur, the structure of the magnesium-aluminum-iron ternary hydrotalcite will also change, wherein the magnesium-aluminum-iron elements will also produce corresponding metal oxides due to their decomposition, and supplement the glass raw material components, and the carbonate released will be released in the form of carbon dioxide, further avoiding oxidation of ferrous ions and ensuring their content in the finished glass cover.

[0048] In step S1, the protective gas is carbon dioxide, which is used to exhaust the air in the reaction kettle to prevent the ferrous iron in the glass raw material from being oxidized and affecting the light transmission performance of the finished glass cover.

[0049] The anti-reflection coating raw materials in step S5 include an organosilicon compound, an alcohol compound and a ketone compound stirred and mixed with an alkaline or acidic catalyst and deionized water, and the corresponding molar ratio is 1: (5-80): (0.05-1).

[0050] The organosilicon compound is silicon alkoxide.

[0051] The alcohol compound is one or more of polyvinyl alcohol and polyethylene glycol.

[0052] The ketone compound is one or more of pentanedione, isohexanone and n-butyl ketone.

[0053] The curing process of the anti-reflection coating material on the glass cover substrate in step S5 includes a primary curing at 90-120° C. for 25-45 minutes and a secondary curing at 450-550° C. for 60-180 minutes.

[0054] Its mechanism of action is as follows: alcohol compounds as solvents facilitate the dissolution of organosilicon compounds, facilitate their diffusion, extension, and adhesion to the surface of the glass cover substrate, and ensure the uniformity and bonding strength of the anti-reflection coating. The addition of alkaline or acidic catalysts can control the hydrolysis rate of organosilicon compounds, so that silicon and oxygen atoms are evenly distributed on the surface of the glass cover substrate, and finally form a compact silica anti-reflection coating structure. In addition, alcohol compounds also form a porous structure on the surface of the anti-reflection coating during curing to achieve the function of reducing light reflection and ensure its high light transmittance. After the glass cover is formed, a cleaning operation is performed to remove the low-light-transmitting substances precipitated on the surface to further improve its transparency.

[0055] The anti-reflection coating on the surface of the glass cover after coating in step S5 has a refractive index of 1.18-1.20 and a thickness of 10-70 nm.

[0056] The manufacturing method improves the light transmittance inside the glass cover substrate by adjusting the component proportion of glass raw materials, adding hydrotalcite with ferrous ions therein, and coordinating with ferric ions, and plays a certain role in absorbing and blocking infrared and ultraviolet high-energy light, thereby avoiding the problems of overheating and unstable operation of the surveillance camera due to light irradiation; an anti-reflection coating is arranged on the surface of the glass cover to ensure low reflection and high transmittance when light enters the surface of the glass cover, and the coating is evenly and reticularly distributed on the surface of the glass cover by designing its components, their proportions, and curing parameters, thereby ensuring high transparency and consistent thickness of the glass cover.

[0057] The above description is only a preferred specific implementation manner 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 scheme and inventive concept 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 manufacturing a highly transparent glass panel surveillance camera, characterized in that: The following steps are involved: S1. Mixing glass raw materials: accurately weigh the glass raw materials according to the set ratio using an electronic scale, and fully mix the components in a reactor into which protective gas is introduced; S2, melting and clarifying: heating the mixed glass raw materials to 1350-1500°C to melt and clarify them to obtain glass stock solution; S3, preliminary molding: the glass stock solution is led out, cooled to 1000-1250°C, and molded through a glass cover mold to obtain a preform; S4, secondary molding: rolling, secondary cooling, annealing, nozzle cutting and shaping the preform to obtain a glass cover substrate; S5, coating: mixing the anti-reflection coating raw materials, and coating the mixed liquid on the glass cover substrate, and finally curing and cooling to form.

2. The method for manufacturing a highly transparent glass panel surveillance camera according to claim 1, characterized in that: The glass raw materials in step S1 include SiO2, Al2O3, MgO, CaO, Na2O, FeO, and Fe2O3, and the corresponding mass ratios are: (60-75): (0.5-3): (5-10): (5-10): (12-18): (0.01-2): (0.01-2), and the glass raw materials also include magnesium-aluminum-iron ternary hydrotalcite, and the interlayer negative ions of the magnesium-aluminum-iron ternary hydrotalcite are carbonates, in which the iron element is divalent.

3. The method for manufacturing a highly transparent glass panel surveillance camera according to claim 2, characterized in that: The glass raw materials in step S1 also include iron powder and high-boiling-point alcohol compounds and ketone compounds.

4. The method for manufacturing a highly transparent glass panel surveillance camera according to claim 1, characterized in that: The anti-reflection coating raw materials in step S5 include an organosilicon compound, an alcohol compound and a ketone compound stirred and mixed with an alkaline or acidic catalyst and deionized water, and the corresponding molar ratio is 1: (5-80): (0.05-1).

5. The method for manufacturing a highly transparent glass panel surveillance camera according to claim 4, characterized in that: The organosilicon compound is silicon alkoxide.

6. The method for manufacturing a highly transparent glass panel surveillance camera according to claim 4, characterized in that: The alcohol compound is one or more of polyvinyl alcohol and polyethylene glycol.

7. The method for manufacturing a highly transparent glass panel surveillance camera according to claim 4, characterized in that: The ketone compound is one or more of pentanedione, isohexanone and n-butyl ketone.

8. The method for manufacturing a highly transparent glass panel surveillance camera according to claim 1, characterized in that: The curing process of the anti-reflection coating material on the glass cover substrate in step S5 includes a primary curing at 90-120° C. for 25-45 minutes and a secondary curing at 450-550° C. for 60-180 minutes.

9. The method for manufacturing a highly transparent glass panel surveillance camera according to claim 1, characterized in that: The anti-reflection coating covering the surface of the glass cover after coating in step S5 has a refractive index of 1.18-1.20 and a thickness of 10-70 nm.

Images