Film coating and curing integrated equipment

Abstract

The utility model discloses coating and curing integrated equipment which comprises a box body, the film coating device is arranged in the box body and is used for roller coating of film coating liquid on glass to be coated; the laser transmitter is arranged in the box body, is positioned at the downstream of the coating device, and is used for carrying out laser drying on coating liquid roller-coated on the glass; the conveying belt is arranged in the box body and is used for sequentially conveying glass to be coated to the coating device and the laser transmitter; the air supply device is arranged on the box body; the air return device is arranged on the box body; the cooling device is used for cooling the laser transmitter; and particulate matters generated after laser drying are discharged from the box body through the air supply device and the air return device. The equipment disclosed by the utility model can ensure that the speed of a coating process is absolutely consistent with that of a drying process, ensures that the time of coating liquid at each position on the glass is completely consistent from coating to the glass to starting to dry, ensures that the curing rates at each position of a film layer are completely same, and ensures that the physical and chemical properties of the film layer are more consistent.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of coating glass manufacturing technical field, specifically to a kind of coating solidification integrated equipment. BACKGROUND

[0002] Photovoltaic cells generally need to be combined together to form photovoltaic modules, and the outer side of the photovoltaic module needs a protective layer. The protective layer needs to have good compression resistance and good light transmittance. Photovoltaic glass is one of the best materials for the protective layer. It can protect the crystalline silicon cell and has high light transmittance itself. Therefore, the optical properties of photovoltaic glass are an important factor in crystalline silicon technology. However, it is much easier to maintain and improve the optical properties of photovoltaic glass than to develop crystalline silicon cells with higher conversion efficiency. The cost is much lower. Therefore, it is very urgent for both module manufacturers and terminal markets to develop and produce photovoltaic glass with higher light transmittance. Currently, the mainstream process for improving the optical properties (light transmittance) of photovoltaic glass is to coat the surface of the glass using a roller coating device. However, with the increasing demand for higher light transmittance of photovoltaic glass, single-layer coating cannot meet the requirements of light transmittance, and double-layer coating has been developed.

[0003] Currently, the double-layer coating process on the market generally involves coating the first layer, then pre-curing in an oven, and then coating the second layer. The oven usually uses hot air drying. However, the oven has the problems of large floor area, low efficiency, high energy consumption, incomplete drying, and uneven drying. Therefore, it is easy to cause quality problems of the coating layer.

[0004] In the traditional coating process, coating and curing are divided into two devices, which have inconsistent conveying speeds, leading to inconsistent drying times and total drying times at different parts of the coating layer, resulting in property differences at different parts of the coating layer. Therefore, when using the traditional process for coating and curing, the following problems may occur: (1) a hot air drying oven (oven) is needed, but the overall structure of the oven device is large and has high energy consumption; (2) the efficiency of drying using the oven device is low; (3) complete and uniform drying cannot be guaranteed when using the oven; (4) since coating and curing are divided into two devices, the conveying speeds of the coating process and the drying process cannot be absolutely consistent, which cannot guarantee that the time from coating the coating liquid on the glass to the start of drying at each part of the glass is completely consistent. Therefore, the curing rate of the coating layer at each position cannot be completely the same, the physical and chemical properties of the coating layer at different parts cannot be consistent, and the coating quality is affected. SUMMARY

[0005] The utility model aims at the many problems faced when using an oven to dry the coating layer in the traditional coating process and designs a coating and curing integrated device to solve the above problems.

[0006] In order to achieve the above object, the utility model is through following technical scheme realizes:

[0007] The utility model discloses a coating solidification integrated equipment, the coating solidification integrated equipment includes:

[0008] Box body;

[0009] Coating device, it is set up in the box body, is used for roll coating coating liquid on the glass of being plated with film;

[0010] Laser emitter, it is set up in the box body and is located downstream of the coating device, is used for roll coating's coating liquid on the glass laser drying;

[0011] Conveyer belt, it is set up in the box body, is used for with film glass of being plated with film sequentially conveyed to the coating device place and laser emitter place;

[0012] Air supply device, it is set up on the box body;

[0013] Air return device, it is set up on the box body;

[0014] And cooling device, it is used for cooling the laser emitter;

[0015] Wherein, through air supply device and air return device, the particulate matter produced after laser drying is discharged from the box body.

[0016] Further, a coating solidification integrated equipment: laser emitter connects laser head, and the irradiation range of laser head is adjusted according to the roll coating area of coating liquid on the glass, so that laser irradiation surface just covers the coating surface.

[0017] Further, a coating solidification integrated equipment: laser emitter is linked with conveyer belt and is set up, and the power of laser emitter is adjusted according to the conveying speed of conveyer belt and the drying parameter of coating liquid.

[0018] Further, a coating solidification integrated equipment: the laser emitter selects picosecond emitter or femtosecond emitter.

[0019] Further, a coating solidification integrated equipment: the temperature of laser drying is 80-200 DEG C.

[0020] Further, a coating solidification integrated equipment: the cooling device is set up outside the box body.

[0021] Further, a coating solidification integrated equipment: the cooling device adopts circulating water as cooling medium, and the water temperature is 18-25 DEG C.

[0022] Specifically, the film coating and curing integrated equipment includes a box body, a film coating device (a roll coater), a laser emitter, a conveyor belt, an air supply device, an air return device, and a cooling device, wherein the laser emitter is connected to a laser head, the irradiation range of the laser head can be selected according to the film coating area on the glass; the film coating section and the curing section (the laser drying section) share the conveyor belt, so that the conveying speed of the glass before and after film coating is completely consistent, the time for the film coating liquid on each part of the glass to be dried after being coated on the glass is kept completely consistent, and thus the curing speed of each position of the film coating layer is completely the same, the physical and chemical properties of each part of the film coating layer are consistent, and the film coating quality is avoided from being affected.

[0023] In the film coating and curing integrated equipment, the laser emitter can be a picosecond, femtosecond or the like, and the color can be red, green, purple or the like, which is selected according to the drying parameters of the film coating liquid. In the utility model, the width of the conveyor belt meets the size requirement of the glass, and the conveying speed is adjusted according to the film coating parameters, and the speed of each section is ensured to be absolutely consistent.

[0024] During the laser drying of the film coating liquid, particulate suspensions may be generated, which may be deposited on the film coating surface if not removed, and then affect the quality of the film layer. Therefore, the air supply device and the air return device are further designed to help discharge the particulate matter generated after laser drying from the box body, so as to avoid affecting the quality of the film layer.

[0025] The utility model has the advantages of:

[0026] (1) The film coating and curing integrated equipment can heat and dry the film coating liquid on the surface of the glass by laser, so that the film coating liquid is not deformed after being pre-cured, the film coating quality is ensured, and the second layer of film coating can be performed.

[0027] (2) The film coating and curing integrated equipment adopts laser drying, does not need to use a hot air blower (an oven), has a simple structure, a small floor area, and low cost and energy consumption. Meanwhile, the film coating and curing integrated equipment adopts laser drying, the laser emission energy is stable, and the drying is complete and uniform.

[0028] (3) The film coating and curing integrated equipment adopts laser drying and adjusts the laser irradiation range to heat the film coating liquid on the surface of the glass in a surface heating mode, and the efficiency is faster.

[0029] (4) The film plating and curing integrated equipment designed in the utility model is an equipment integrating laser drying and film plating, unnecessary space can be saved, the laser drying width and the film plating width can be ensured to be consistent through laser head adjustment, the drying effect is improved, and laser drying is adopted, and laser emission energy can be quickly adjusted according to the film plating thickness and speed.

[0030] (5) The film plating and curing integrated equipment designed in the utility model can ensure that the speed of the film plating process and the drying process is absolutely consistent, the time from film plating to glass to the start of drying of the film plating liquid on each position of the glass is kept completely consistent, the curing speed of each position of the film layer is completely same, and the physical and chemical properties of the film layer are more consistent. BRIEF DESCRIPTION OF DRAWINGS

[0031] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the drawings needed to be used in the embodiment description will be briefly introduced, and obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor on the premise of not paying creative labor.

[0032] Figure 1 The structure diagram of the film plating and curing integrated equipment designed for the embodiment 1 of the utility model.

[0033] Marked in the figure: 1 - box, 2 - film plating device, 3 - laser emitter, 4 - conveying belt, 5 - air supply device, 6 - air return device, 7 - cooling device. DETAILED DESCRIPTION

[0034] The technical scheme in the embodiments of the utility model will be clearly and completely described in combination with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only some embodiments of the utility model, not all the embodiments. The description of the at least one exemplary embodiment is actually only illustrative, and is by no means any limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0035] In the description of the utility model, need understanding is, the orientation or position relation that the terms "upper", "lower", "left", "right", "top", "bottom" and the like indicate, only for the convenience of describing the utility model and simplifying the description, and not indicate or imply that the device or element indicated must have a particular orientation, with a particular orientation structure and operation, therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included one or more features. Moreover, the terms "first", "second" and the like are used to distinguish similar objects, and do not have to be used to describe a particular order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the utility model described herein can be implemented in an order other than those illustrated or described herein.

[0036] Embodiment 1

[0037] As Figure 1 shown, the present embodiment 1 designs a coating curing integrated equipment, the coating curing integrated equipment includes:

[0038] The box 1;

[0039] The coating device 2 is arranged in the box 1, for roll coating coating liquid on the glass to be coated;

[0040] The laser emitter 3 is arranged in the box 1 and is located downstream of the coating device 2, for laser drying (the temperature of laser drying is 80-200 DEG C) on the glass roll coated coating liquid, the laser emitter 3 is connected with the laser head, and the irradiation range of the laser head can be adjusted according to the roll coating area of the coating liquid on the glass, so that the laser irradiation surface just covers the coating surface;

[0041] The conveying belt 4 is arranged in the box 1, for conveying the glass to be coated to the coating device 2 and the laser emitter 3 in turn, the laser emitter 3 is arranged in linkage with the conveying belt 4, and the power of the laser emitter 3 can be adjusted according to the conveying speed of the conveying belt 4 and the drying parameters of the coating liquid;

[0042] The air supply device 5 is arranged on the box 1;

[0043] The air return device 6 is arranged on the box 1;

[0044] And the cooling device 7 is arranged outside the box 1, for cooling the laser emitter 3, the cooling device 7 uses circulating water as cooling medium, and the water temperature is 18-25 DEG C;

[0045] Wherein, the particulate matter generated after laser drying is discharged from the box 1 through the air supply device 5 and the air return device 6.

[0046] The laser emitter 3 in the above embodiment 1 is selected as a picosecond emitter or a femtosecond emitter, and the color can be red, green, purple, etc., which is selected according to the drying parameters of the coating liquid.

[0047] The use method of the coating and curing integrated equipment designed in the above embodiment 1 is as follows:

[0048] (1) Adjust the parameters of the coating device 2 and the speed of the conveying belt 4 according to the required film layer performance;

[0049] (2) Adjust the laser head irradiation area according to the coating area on the glass, and adjust the power (irradiation temperature) of the laser emitter 3 according to the speed of the conveying belt 4 and the drying parameters of the coating liquid;

[0050] (3) Turn on the coating device 2, the laser emitter 3, the cooling device 7, the air supply device 5, and the air return device 6;

[0051] (4) After the glass is coated, it is sent to the laser drying section through the conveying belt 4, and the laser emitted by the laser emitter 3 is used to dry the coating liquid;

[0052] (5) After the coating liquid is pre-cured by laser drying, the glass is conveyed by the conveying belt 4 to continue the second coating or enter the steeling furnace for steeling.

[0053] Test:

[0054] (1) The coating and curing integrated equipment designed in the above embodiment 1 is installed in a conventional glass coating production line to replace the traditional first coating roll coater. Adjust the roll coater parameters and the conveying belt speed according to the required film layer performance, adjust the laser head irradiation area according to the coating area on the glass, adjust the power (irradiation temperature) of the laser emitter according to the speed of the conveying belt and the drying parameters of the coating liquid, turn on the coating device, the laser emitter, the cooling device, the air supply device, and the air return device 6. After the glass is coated for the first time, it is sent to the laser drying section through the conveying belt for laser drying. After the coating liquid is pre-cured by laser drying, the glass is conveyed by the conveying belt to the second roll coater for the second coating. After the coating is completed, it enters the steeling furnace for shaping.

[0055] Collect the production data of the production line in one day, and the results are as follows: the glass coating failure rate is zero, and the electricity consumption is about 1000 degrees.

[0056] (2) Install a hot air drying oven in the conventional glass coating production line. After the glass is coated for the first time in the coating equipment, it is sent to another oven equipment through the conveying belt. The curing of the coating liquid is completed in the oven. The glass is conveyed by the conveying belt to the second roll coater for the second coating. After the coating is completed, it enters the steeling furnace for shaping.

[0057] Collecting the production data of the production line in a day, the following results are obtained: the glass coating failure rate is about 2.0%, and the electricity consumption is about 2400 degrees (oven).

[0058] It can be seen that the traditional coating and curing are completed by two devices, which not only has the problems of large floor area and low efficiency, but also has the problems of high energy consumption and coating quality caused by incomplete and uneven drying of the oven (coating failure rate is about 2.0%).

[0059] The above is the preferred embodiment of the present application, which is used to explain the present application, and is not used to limit the present application. Any obvious changes or changes derived from the technical solutions of the present application are still within the protection scope of the present application.

Claims

1. A coating and curing integrated apparatus, characterized by, The film coating and curing integrated device comprises: a box (1); a film coating device (2) arranged in the box (1) and used for roll coating a film coating liquid on a glass to be coated; a laser emitter (3) arranged in the box (1) and located downstream of the film coating device (2) and used for laser drying the roll coated film coating liquid on the glass; a conveying belt (4) arranged in the box (1) and used for sequentially conveying the glass to be coated to the film coating device (2) and the laser emitter (3); an air supply device (5) arranged on the box (1); an air return device (6) arranged on the box (1); and a cooling device (7) used for cooling the laser emitter (3); wherein the particulate matters generated after laser drying are discharged from the box (1) through the air supply device (5) and the air return device (6).

2. The coating and curing integrated apparatus according to claim 1, wherein The laser emitter (3) is connected with a laser head, and the irradiation range of the laser head is adjusted according to the roll coating area of the film coating liquid on the glass, so that the laser irradiation surface just covers the film coating surface.

3. The coating and curing integrated apparatus according to claim 1, wherein The laser emitter (3) is arranged in linkage with the conveying belt (4), and the power of the laser emitter (3) is adjusted according to the conveying speed of the conveying belt (4) and the drying parameters of the film coating liquid.

4. The coating and curing integrated apparatus according to any one of claims 1 to 3, characterized in that, The laser emitter (3) is selected from a picosecond emitter or a femtosecond emitter.

5. The coating and curing integrated apparatus according to claim 1, wherein, The temperature of the laser drying is 80-200 ℃.

6. The coating and curing integrated apparatus according to claim 1, wherein The cooling device (7) is arranged outside the box (1).

7. The coating and curing integrated apparatus according to claim 1 or 6, wherein The cooling device (7) uses circulating water as the cooling medium, and the water temperature is 18-25 ℃.

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