Film coating machine and double-layer curing film coating preparation process

Abstract

The invention belongs to the technical field of optical fiber coating coating and curing, and particularly relates to a coating machine and a double-layer curing coating preparation process. The film coating machine comprises a machine table, a coating storage part, a scraper assembly, a curing assembly and a heating assembly, and a film coating substrate is arranged on the machine table and used for bearing a glass plate; the paint storage part is used for storing paint and comprises a first paint tank and a second paint tank, and the first paint tank and the second paint tank are used for containing inner-layer paint and outer-layer paint correspondingly; the first coating tank and the second coating tank are both connected with coating pipelines, and the coating pipelines can respectively dispense the inner-layer coating and the outer-layer coating onto the glass plate; the scraper assembly comprises a scraper, and the scraper is arranged above the glass plate in a sliding mode and used for scraping the inner-layer coating and the outer-layer coating; the curing assembly can be used for curing the inner-layer coating and the outer-layer coating on the glass plate; the heating assembly can heat the inner-layer coating and the outer-layer coating on the glass plate; and objectivity and accuracy of optical fiber coating detection are improved.

Description

Technical Field

[0001] The invention relates to the technical field of optical fiber coating curing, and in particular to a coating machine and a double-layer cured coating preparation process. Background Art

[0002] With the rapid development of optical communication technology, optical fiber as a basic material has been widely used in many fields. However, optical fiber made of glass or plastic is thin and fragile, and easily damaged. It needs to be double-coated with optical fiber coating to provide strength protection, waterproof and stress buffering.

[0003] In order to meet the actual application needs of optical fiber in different scenarios, the double-layer coating (divided into inner coating and outer coating) coated on the surface of the optical fiber needs to meet different performance indicators. This requires testing and analysis of the physical and chemical properties of the optical fiber coating itself, such as viscosity, density, refractive index and mechanical strength.

[0004] In the prior art, optical fiber coating detection methods (especially mechanical property detection) often make films for the inner and outer coatings separately, and then test various physical and chemical parameters of the films after they are cured. However, in actual applications, on the one hand, the state of the contact surface between the inner and outer coatings will have a stress effect on the optical fiber; on the other hand, the ratio of different inner and outer coating products will also have a great impact on the performance of the finished optical fiber. For example, Chinese Patent 201210523143.1 describes a polyimide numerical coating that can withstand high temperatures of 500°C, while in Chinese Patent 201911369037.0, the double-layer polyimide coating of the same material can only withstand temperatures of 300°C-350°C. Therefore, the parameters detected after the inner and outer coatings are separately made and cured cannot fully reflect the actual application status of the double-layer coating.

[0005] Small-diameter optical fiber products require thinner coating thickness than ordinary optical fiber, but in actual production, after the coating thickness is reduced, the drawing process is often affected by the sudden increase of its breakpoints, and the PT data deteriorates; and under the same size of different inner and outer coating products or the same inner and outer coating products but different thickness ratios, there is still a large gap in their strength, resulting in a significant increase in uncontrollable factors in the actual optical fiber drawing process. Therefore, it is necessary to improve relevant testing methods, prepare double-layer coatings to find the theoretical optimal value of the inner and outer coating ratio, and feedback process adjustments to improve the production quality stability of small-diameter optical fibers. Summary of the invention

[0006] The purpose of the present invention is to provide a coating machine and a double-layer cured coating preparation process to solve the problem in the prior art that the state between the contact surface of the inner coating and the outer coating will produce stress on the optical fiber, so the parameters detected after the inner coating and the outer coating are separately filmed and cured cannot fully reflect the actual application state of the double-layer coating, thereby improving the objectivity of the optical fiber coating detection method and the accuracy of the detection results.

[0007] To achieve this object, the present invention adopts the following technical solutions:

[0008] In one aspect, a coating machine is provided, comprising:

[0009] A machine, a paint storage, a scraper assembly, a curing assembly and a heating assembly, wherein a coating substrate is arranged on the machine, and the coating substrate is used to support a glass plate; the paint storage is used to store paint, and the paint storage comprises a first paint tank and a second paint tank, and the first paint tank and the second paint tank respectively contain an inner layer of paint and an outer layer of paint; the first paint tank and the second paint tank are both connected with paint pipes, and the paint pipes can drip the inner layer of paint and the outer layer of paint onto the glass plate respectively; the scraper assembly comprises a scraper, and the scraper is slidably arranged above the glass plate and is used to scrape the inner layer of paint and the outer layer of paint; the curing assembly can cure the inner layer of paint and the outer layer of paint on the glass plate; the heating assembly can heat the inner layer of paint and the outer layer of paint on the glass plate.

[0010] As an optional technical solution for the coating machine, a cover is flipped over the machine platform, the cover is buckled with the machine platform to form a sealed cavity, and the curing assembly is arranged on the cover.

[0011] As an optional technical solution for the coating machine, the curing component includes a mercury lamp and / or an LED lamp.

[0012] As an optional technical solution for the coating machine, the wavelength of the curing component includes: 365nm, 385nm, 395nm and 405nm.

[0013] As an optional technical solution for the coating machine, the scraper assembly also includes two support rods, which are respectively arranged on both sides of the coating substrate, and both ends of the scraper are respectively connected to the two support rods. The height of the support rods is adjustable to adjust the distance between the scraper and the glass plate.

[0014] As an optional technical solution for the coating machine, the height adjustment range of the scraper is 50 μm-500 μm.

[0015] As an optional technical solution for the coating machine, a first control panel is provided on the machine platform, and the first control panel is communicatively connected with the scraper assembly, the curing assembly and the heating assembly to control the height parameters and sliding parameters of the scraper assembly, the curing parameters of the curing assembly and the heating parameters of the heating assembly.

[0016] As an optional technical solution for the coating machine, the discharge port of the paint pipe is provided with a paint nozzle, and the paint nozzle is provided with an air pump. The air pump can pressurize the first paint tank and the second paint tank respectively, so that the inner layer paint and the outer layer paint are respectively dripped onto the glass plate and the inner layer paint through the paint nozzle.

[0017] As an optional technical solution for the coating machine, the first paint tank and the second paint tank are both placed in a main paint tank, the main paint tank contains accumulated liquid, a heating element is provided in the accumulated liquid, and the heating element is used to heat the accumulated liquid to keep the first paint tank and the second paint tank at a constant temperature.

[0018] As an optional technical solution for the coating machine, the constant temperature of the accumulated liquid is 25°C

[0019] As an optional technical solution for the coating machine, a second control panel is provided on the main coating tank, and the second control panel is communicatively connected with the first coating tank, the second coating tank and the heating element.

[0020] As an optional technical solution for the coating machine, the second control panel is provided with operation buttons.

[0021] As an optional technical solution for the coating machine, the moving speed of the scraper is 30mm / s-300mm / s.

[0022] On the other hand, a double-layer cured coating preparation process is provided, which is applied to the above-mentioned coating machine and comprises the following steps:

[0023] S1, placing the glass plate on the coating substrate, adjusting the height of the scraper to a first height, starting the scraper and the first coating tank, and evenly scraping the inner layer coating onto the glass plate;

[0024] S2, using the curing component to cure the inner layer coating;

[0025] S3, adjusting the height of the scraper to a second height, starting the scraper and the second coating tank, and evenly scraping the outer coating onto the inner coating;

[0026] S4, using the curing component to cure the outer coating.

[0027] As an optional technical solution for the preparation process of a double-layer cured coating film, the first height is 125 μm and the second height is 250 μm.

[0028] As an optional technical solution for the double-layer cured coating preparation process, in step S2 and step S4, the curing component is an LED lamp.

[0029] As an optional technical solution for the preparation process of a double-layer cured coating, the wavelength of the LED lamp is 365 nm and the irradiation time is 10 s.

[0030] On the other hand, a double-layer cured coating preparation process is provided, which is applied to the above-mentioned coating machine and comprises the following steps:

[0031] S1, placing the glass plate on the coating substrate, adjusting the height of the scraper to a first height, starting the scraper and the first coating tank, and evenly scraping the inner layer coating onto the glass plate;

[0032] S20, heating the inner coating using the heating component;

[0033] S3, adjusting the height of the scraper to a second height, starting the scraper and the second coating tank, and evenly scraping the outer coating onto the inner coating;

[0034] S4. Using the curing component to cure the outer coating and the inner coating together.

[0035] As an optional technical solution for the preparation process of a double-layer cured coating film, the first height is 125 μm and the second height is 250 μm.

[0036] As an optional technical solution for the preparation process of a double-layer cured coating film, in step S20, the heating temperature of the heating component is 50° C. and the heating time is 3 minutes.

[0037] As an optional technical solution for the double-layer cured coating preparation process, in step S4, the curing component is a mercury lamp.

[0038] As an optional technical solution for the preparation process of a double-layer cured coating, the wavelength of the mercury lamp is 365 nm and the irradiation time is 10 s.

[0039] Beneficial effects of the present invention:

[0040] The present invention provides a coating machine, including a machine platform, a coating storage part, a scraper assembly, a curing assembly and a heating assembly. A coating substrate is arranged on the machine platform, and the coating substrate is used to carry a glass plate; the coating storage part is used to store the coating, and the coating storage part includes a first coating tank and a second coating tank, and the first coating tank and the second coating tank respectively hold an inner coating and an outer coating; the first coating tank and the second coating tank are both connected with a coating pipeline, and the coating pipeline can drip the inner coating and the outer coating onto the glass plate respectively; the scraper assembly includes a scraper, and the scraper is slidably arranged above the glass plate, and is used to scrape the inner coating and the outer coating; the curing assembly can cure the inner coating and the outer coating on the glass plate; the heating assembly can heat the inner coating and the outer coating on the glass plate. By simulating an optical fiber through a glass plate, a double-layer film is made on the glass plate for detection, thereby improving the objectivity of the optical fiber coating detection method and the accuracy of the detection result.

[0041] The present invention also provides a double-layer cured coating preparation process, which is applied to the above-mentioned coating machine, and includes the following steps: S1, placing a glass plate on a coating substrate, adjusting the height of a scraper to a first height, starting the scraper and a first coating tank, and evenly scraping the inner coating on the glass plate; S2, using a curing component to cure the inner coating; S3, adjusting the height of the scraper to a second height, starting the scraper and the second coating tank, and evenly scraping the outer coating on the inner coating; S4, using a curing component to cure the outer coating and the inner coating together. By simulating optical fiber with a glass plate, a double-layer film is made on the glass plate for detection, which improves the objectivity of the optical fiber coating detection method and the accuracy of the detection results.

[0042] The present invention also provides a double-layer cured coating preparation process, which is applied to the above-mentioned coating machine, and includes the following steps: S1, placing a glass plate on a coating substrate, adjusting the height of a scraper to a first height, starting the scraper and a first coating tank, and evenly scraping the inner coating on the glass plate; S20, using a heating component to heat the inner coating; S3, adjusting the height of the scraper to a second height, starting the scraper and the second coating tank, and evenly scraping the outer coating on the inner coating; S4, using a curing component to cure the outer coating and the inner coating together. By simulating optical fiber with a glass plate, a double-layer film is made on the glass plate for detection, which improves the objectivity of the optical fiber coating detection method and the accuracy of the detection results. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0044] Figure 1 It is a structural schematic diagram of a coating machine provided by an embodiment of the present invention;

[0045] Figure 2 It is a flow chart of a double-layer cured coating preparation process provided by an embodiment of the present invention;

[0046] Figure 3 It is a flow chart of another process for preparing a double-layer cured coating film provided in an embodiment of the present invention.

[0047] In the figure:

[0048] 10. Machine platform; 11. Coating substrate; 12. Machine cover; 13. First control panel;

[0049] 20. Paint storage unit; 21. First paint tank; 22. Second paint tank; 23. Paint pipeline; 24. Paint nozzle; 25. Air pump; 26. Main paint tank; 27. Second control panel;

[0050] 30. scraper assembly; 31. scraper; 32. support rod. DETAILED DESCRIPTION

[0051] Before any embodiments of the application are explained in detail, it is to be understood that the application is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the above drawings.

[0052] In this application, the terms "comprises", "includes", "has" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device that includes the element.

[0053] In this application, the term "and / or" is a description of the association relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this application generally indicates that the related objects before and after are in an "and / or" relationship.

[0054] In the present application, the terms "connect", "combine", "couple", and "install" may refer to direct connection, combination, coupling, or installation, or indirect connection, combination, coupling, or installation. For example, direct connection refers to two parts or components being connected together without the need for an intermediate piece, and indirect connection refers to two parts or components being connected to at least one intermediate piece respectively, and the two parts or components being connected via the intermediate piece. In addition, "connect" and "couple" are not limited to physical or mechanical connections or couplings, and may include electrical connections or couplings.

[0055] In the present application, it will be understood by those of ordinary skill in the art that relative terms (e.g., "about," "approximately," "substantially," etc.) used in conjunction with quantities or conditions include the values ​​and have the meaning indicated by the context. For example, the relative terms include at least the degree of error associated with the measurement of a specific value, the tolerances caused by manufacturing, assembly, and use associated with a specific value, and the like. Such terms should also be considered to disclose a range defined by the absolute values ​​of the two endpoints. Relative terms may refer to plus or minus a certain percentage (e.g., 1%, 5%, 10% or more) of the indicated value. Numerical values ​​that do not use relative terms should also be disclosed as specific values ​​with tolerances. In addition, "substantially" may refer to plus or minus a certain degree (e.g., 1 degree, 5 degrees, 10 degrees or more) on the basis of the indicated angle when expressing a relative angular position relationship (e.g., substantially parallel, substantially perpendicular).

[0056] In this application, it will be understood by those skilled in the art that the function performed by a component can be performed by one component, multiple components, one part, or multiple parts. Similarly, the function performed by a part can also be performed by one part, one component, or a combination of multiple parts.

[0057] In the present application, the terms "upper", "lower", "left", "right", "front", "back" and other directional words are described based on the orientation and positional relationship shown in the accompanying drawings, and should not be understood as limiting the embodiments of the present application. In addition, in the context, it is also necessary to understand that when it is mentioned that an element is connected to another element "upper" or "lower", it can not only be directly connected to another element "upper" or "lower", but also indirectly connected to another element "upper" or "lower" through an intermediate element. It should also be understood that directional words such as upper side, lower side, left side, right side, front side, back side, etc. not only represent the positive orientation, but can also be understood as the lateral orientation. For example, the bottom can include directly below, lower left, lower right, lower front, and lower back, etc.

[0058] In the prior art, optical fiber coating detection methods (especially mechanical property detection) often make films of the inner coating and the outer coating separately, and then test various physical and chemical parameters of the films after curing. However, in actual applications, the state of the contact surface between the inner coating and the outer coating will produce stress on the optical fiber, so the parameters detected after the inner coating and the outer coating are made and cured separately cannot fully reflect the actual application state of the double-layer coating. This optical fiber coating detection method is not objective, and the detection results are not accurate.

[0059] In order to solve the above problems, this embodiment provides a coating machine, referring to Figure 1 , including a machine 10, a paint storage unit 20, a scraper assembly 30, a curing assembly and a heating assembly. A coating substrate 11 is provided on the machine 10, and the coating substrate 11 is used to support a glass plate; the paint storage unit 20 is used to store paint, and the paint storage unit 20 includes a first paint tank 21 and a second paint tank 22, and the first paint tank 21 and the second paint tank 22 respectively hold an inner layer of paint and an outer layer of paint; the first paint tank 21 and the second paint tank 22 are both connected to a paint pipeline 23, and the paint pipeline 23 can drip the inner layer of paint and the outer layer of paint onto the glass plate respectively; the scraper assembly 30 includes a scraper 31, and the scraper 31 is slidably arranged above the glass plate, and is used to scrape the inner layer of paint and the outer layer of paint; the curing assembly can cure the inner layer of paint and the outer layer of paint on the glass plate; the heating assembly can heat the inner layer of paint and the outer layer of paint on the glass plate. By simulating the optical fiber through a glass plate, the glass plate can simulate the silica glass fiber material of the bare optical fiber, ensuring that the performance test effect of the prepared double-layer coating is more reliable than the performance parameters of the actual optical fiber coating. Making a double-layer film on the glass plate for testing improves the objectivity of the optical fiber coating detection method and the accuracy of the test results.

[0060] Furthermore, the glass plate is fixed to the machine platform 10 by a clamp. In this embodiment, the clamp can be a spring clamp or an electric pressure rod.

[0061] Furthermore, a cover 12 is provided on the machine 10 to be turned over, and the cover 12 is buckled with the machine 10 to form a sealed chamber, and the curing assembly is provided on the cover 12. In this embodiment, the cover 12 is provided on one side of the machine 10 through a rotating shaft. In other embodiments, the cover 12 can be provided on one side of the machine 10 through a telescopic rod or a spring rod. Furthermore, a handle is provided on the cover 12 to facilitate turning over the cover 12. Specifically, the handle can be provided as a pull ring or a pull rod, etc., and the details are not repeated here.

[0062] Furthermore, the curing component includes a mercury lamp and / or an LED lamp (Light Emitting Diode). Specifically, the wavelengths of the mercury lamp and the LED lamp include 365nm, 385nm, 395nm and 405nm, etc. When curing the inner layer coating and the outer layer coating, different wavelengths can be selected according to actual conditions.

[0063] Furthermore, the scraper assembly 30 further includes two support rods 32, which are respectively arranged on both sides of the coating substrate 11, and the two ends of the scraper 31 are respectively connected to the two support rods 32, and the height of the support rods 32 is adjustable to adjust the distance between the scraper 31 and the glass plate. In this embodiment, the support rod 32 is set as an electric telescopic rod to change the distance between the scraper 31 and the glass plate, thereby changing the scraping thickness of the inner layer and the outer layer of paint.

[0064] Furthermore, a pulley is provided at one end of the support rod 32 connected to the machine 10, and slide rails are provided on both sides of the machine 10. The support rod 32 is slidably provided on the machine 10 through the cooperation of the pulley and the slide rail to scrape the inner layer and the outer layer of paint. In this embodiment, the pulley can be set as an electric pulley, so that the moving speed of the scraper 31 can be controlled.

[0065] Furthermore, a first control panel 13 is provided on the machine 10, and the first control panel 13 is connected to the scraper assembly 30, the curing assembly and the heating assembly to control the height parameter and the sliding parameter of the scraper assembly 30, the curing parameter of the curing assembly (the wavelength parameter of the mercury lamp and the LED lamp) and the heating parameter of the heating assembly. Specifically, the heating assembly is set as a heating lamp or a hot air assembly, and the first control panel 13 can set the heating temperature of the heating assembly.

[0066] Furthermore, a temperature sensor is provided in the sealed cavity for feeding back temperature data in the sealed cavity. The temperature sensor is communicatively connected to the first control panel 13. Specifically, the first control panel 13 also includes a PLC controller (Programmable Logic Controller).

[0067] Furthermore, a paint nozzle 24 is provided at the discharge port of the paint pipe 23, and an air pump 25 is provided on the paint nozzle 24. The air pump 25 can pressurize the first paint tank 21 and the second paint tank 22 respectively, so that the inner layer paint and the outer layer paint are respectively dripped onto the glass plate and the inner layer paint through the paint nozzle 24.

[0068] Furthermore, the first coating tank 21 and the second coating tank 22 are both placed in the main coating tank 26, and the main coating tank 26 contains accumulated liquid, and a heating element is provided in the accumulated liquid, and the heating element is used to heat the accumulated liquid to keep the first coating tank 21 and the second coating tank 22 at a constant temperature. The condensation of the inner layer coating and the outer layer coating in the first coating tank 21 and the second coating tank 22 is avoided, and the clogging of the coating pipeline 23 and the coating nozzle 24 is avoided. Specifically, the temperature of the accumulated liquid is constant at 25°C. Specifically, the heating element can be set as an electric heating rod, etc.

[0069] Furthermore, a second control panel 27 is provided on the main paint tank 26, and the second control panel 27 is communicatively connected with the first paint tank 21, the second paint tank 22 and the heating element. The second control panel 27 can control the spraying of the first paint tank 21 and the second paint tank 22 and the temperature of the heating element. Specifically, the second control panel is provided with operation buttons for easy operation and adjustment by the staff.

[0070] This embodiment also provides a double-layer cured coating preparation process, which is applied to the above-mentioned coating machine. The process is wet-to-dry coating, see Figure 2 , including the following steps:

[0071] S1, placing a glass plate on the coating substrate 11, adjusting the height of the scraper 31 to a first height, starting the scraper 31 and the first coating tank 21, and evenly scraping the inner coating onto the glass plate;

[0072] S2, using a curing component to cure the inner coating;

[0073] S3, adjusting the height of the scraper 31 to a second height, starting the scraper 31 and the second coating tank 22, and evenly scraping the outer coating onto the inner coating;

[0074] S4. Use a curing component to cure the outer coating.

[0075] Furthermore, the height of the scraper 31 is adjustable, generally 50 μm-500 μm, and the moving speed of the scraper 31 is generally 30 mm / s-300 mm / s.

[0076] Exemplarily, before step S1, the coating machine needs to be checked and cleaned to keep it clean and able to operate normally. Further, in step S1, the first height is set to 125 μm, and the moving speed of the scraper 31 is set to 30 mm / s; in step S2, the curing component selects a 365 nm wavelength LED lamp, and the irradiation time is 10 s; in step S3, the second height is 250 μm, and the moving speed of the scraper 31 is set to 30 mm / s; in step S4, the curing component selects a 365 nm wavelength LED lamp, and the irradiation time is 10 s.

[0077] It should be noted that the dripping of the inner and outer coatings and the movement of the scraper 31 are carried out simultaneously to avoid the accumulation of the inner and outer coatings causing uneven coating layer thickness.

[0078] Further, see Figure 3 The wet-on-wet coating process is as follows: step S2 is replaced by step S20, and the inner layer of coating is heated using a heating component.

[0079] S1, placing a glass plate on the coating substrate 11, adjusting the height of the scraper 31 to a first height, starting the scraper 31 and the first coating tank 21, and evenly scraping the inner coating onto the glass plate;

[0080] S20, heating the inner coating using a heating component;

[0081] S3, adjusting the height of the scraper 31 to a second height, starting the scraper 31 and the second coating tank 22, and evenly scraping the outer coating onto the inner coating;

[0082] S4. Use a curing assembly to cure the outer coating and the inner coating together.

[0083] Furthermore, the heating temperature of the heating component is generally 25°C-100°C.

[0084] Exemplarily, before step S1, the coating machine needs to be checked and cleaned to keep it clean and able to operate normally. Further, in step S1, the first height is set to 125μm, and the moving speed of the scraper 31 is set to 30mm / s; in step S20, the heating component is set to 50℃ and baked for 3min to evaporate part of the low-boiling solvent in the inner coating composition to prevent the mixing of the two coatings and affect the performance test effect; in step S3, the second height is 250μm, and the moving speed of the scraper 31 is set to 30mm / s; in step S4, the curing component selects a mercury lamp with a wavelength of 365nm, and the irradiation time is 10s. The mercury lamp has stronger penetration, which ensures the curing effect of the inner coating in the double-layer wet film.

[0085] The coating machine and double-layer cured coating preparation process provided in this embodiment simulate optical fiber through a glass plate, and make a double-layer film on the glass plate for detection, thereby improving the objectivity of the optical fiber coating detection means and the accuracy of the detection results; using two double-layer cured coating preparation processes of "wet on dry" and "wet on wet", the state and performance of optical fiber using different types of double-layer coatings are simulated. The prepared double-layer coating can be used to detect temperature resistance, wear resistance and corrosion resistance, etc., which improves the convenience of optical fiber coating research and development.

[0086] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. Film coating machine, characterized in that, include: A machine platform (10), wherein a coating substrate (11) is arranged on the machine platform (10), and the coating substrate (11) is used to carry a glass plate; A paint storage member (20), the paint storage member (20) is used to store paint, the paint storage member (20) comprises a first paint tank (21) and a second paint tank (22), the first paint tank (21) and the second paint tank (22) respectively contain an inner layer of paint and an outer layer of paint; the first paint tank (21) and the second paint tank (22) are both connected to a paint pipe (23), the paint pipe (23) can drip the inner layer of paint and the outer layer of paint onto the glass plate respectively; A scraper assembly (30), the scraper assembly (30) comprising a scraper (31), the scraper (31) being slidably disposed above the glass plate and used for scraping the inner layer of paint and the outer layer of paint; A curing component, wherein the curing component can cure the inner layer coating and the outer layer coating on the glass plate; A heating component is provided, wherein the heating component can heat the inner coating and the outer coating on the glass plate.

2. The film coating machine according to claim 1, characterized in that: A cover (12) is flipped over and arranged above the machine platform (10); the cover (12) is buckled with the machine platform (10) to form a sealed cavity; and the curing component is arranged on the cover (12).

3. The film coating machine according to claim 1, characterized in that: The curing component includes a mercury lamp and / or an LED lamp.

4. The film coating machine according to claim 3, characterized in that: The wavelengths of the curing components include: 365nm, 385nm, 395nm and 405nm.

5. The film coating machine according to claim 1, characterized in that: The scraper assembly (30) further comprises two support rods (32), the two support rods (32) being respectively arranged on both sides of the coating substrate (11), the two ends of the scraper (31) being respectively connected to the two support rods (32), and the height of the support rods (32) being adjustable so as to adjust the distance between the scraper (31) and the glass plate.

6. The film coating machine according to claim 5, characterized in that: The height adjustment range of the scraper (31) is 50 μm-500 μm.

7. The film coating machine according to claim 1, characterized in that: The machine platform (10) is provided with a first control panel (13), and the first control panel (13) is communicatively connected with the scraper assembly (30), the curing assembly and the heating assembly to control the height parameter and sliding parameter of the scraper assembly (30), the curing parameter of the curing assembly and the heating parameter of the heating assembly.

8. The film coating machine according to any one of claims 1 to 7, characterized in that: The discharge port of the paint pipe (23) is provided with a paint nozzle (24), and the paint nozzle (24) is provided with an air pump (25). The air pump (25) can pressurize the first paint tank (21) and the second paint tank (22) respectively, so that the inner layer paint and the outer layer paint are dripped onto the glass plate and the inner layer paint respectively through the paint nozzle (24).

9. The film coating machine according to claim 8, characterized in that: The first coating tank (21) and the second coating tank (22) are both placed in a main coating tank (26), and the main coating tank (26) contains accumulated liquid. A heating element is arranged in the accumulated liquid, and the heating element is used to heat the accumulated liquid so as to keep the first coating tank (21) and the second coating tank (22) at a constant temperature.

10. The film coating machine according to claim 9, characterized in that: The effusion was kept at a constant temperature of 25°C.

11. The film coating machine according to claim 9, characterized in that: The main coating tank (26) is provided with a second control panel (27), and the second control panel (27) is communicatively connected with the first coating tank (21), the second coating tank (22) and the heating element.

12. The film coating machine according to claim 11, characterized in that: The second control panel (27) is provided with operating buttons.

13. The film coating machine according to any one of claims 1 to 7, characterized in that: The moving speed of the scraper (31) is 30 mm / s-300 mm / s.

14. A double-layer cured coating preparation process, applied to a coating machine as claimed in any one of claims 1 to 13, characterized in that: The following steps are involved: S1, placing the glass plate on the coating substrate (11), adjusting the height of the scraper (31) to a first height, starting the scraper (31) and the first coating tank (21), and evenly scraping the inner layer coating onto the glass plate; S2, using the curing component to cure the inner layer coating; S3, adjusting the height of the scraper (31) to a second height, starting the scraper (31) and the second coating tank (22), and evenly scraping the outer coating onto the inner coating; S4, using the curing component to cure the outer coating.

15. The process for preparing a double-layer cured coating film according to claim 14, characterized in that: The first height is 125 μm, and the second height is 250 μm.

16. The process for preparing a double-layer cured coating film according to claim 14, characterized in that: In the step S2 and the step S4, the curing component is an LED lamp.

17. The process for preparing a double-layer cured coating film according to claim 16, characterized in that: The wavelength of the LED light is 365nm, and the irradiation time is 10s.

18. A double-layer cured coating preparation process, applied to a coating machine as claimed in any one of claims 1 to 13, characterized in that: The following steps are involved: S1, placing the glass plate on the coating substrate (11), adjusting the height of the scraper (31) to a first height, starting the scraper (31) and the first coating tank (21), and evenly scraping the inner layer coating onto the glass plate; S20, heating the inner layer coating using the heating component; S3, adjusting the height of the scraper (31) to a second height, starting the scraper (31) and the second coating tank (22), and evenly scraping the outer coating onto the inner coating; S4. Using the curing component to cure the outer coating and the inner coating together.

19. The process for preparing a double-layer cured coating film according to claim 18, characterized in that: The first height is 125 μm, and the second height is 250 μm.

20. The process for preparing a double-layer cured coating film according to claim 18, characterized in that: In the step S20, the heating temperature of the heating component is 50° C. and the heating time is 3 minutes.

21. The process for preparing a double-layer cured coating film according to claim 18, characterized in that: In the step S4, the curing component is a mercury lamp.

22. The process for preparing a double-layer cured coating film according to claim 21, characterized in that: The wavelength of the mercury lamp is 365 nm, and the irradiation time is 10 s.

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