Coating device

Abstract

The utility model discloses a coating device. The coating device comprises a bracket, a coating component, a shooting part and a display, the coating assembly is arranged on the support and comprises a coating head, a discharging slit is formed in the side, facing the substrate, of the coating head, and coating liquid coats the substrate through the discharging slit and forms a liquid film. The shooting part is arranged on the support, the shooting part is used for shooting an image of a liquid film located on the substrate, and / or the shooting part is used for shooting an image of a liquid curtain between the discharging slit and the substrate, and the displayer is used for displaying the image shot by the shooting part. The shooting part can move along the support in the direction perpendicular to the coating direction. According to the coating device, the coating process can be conveniently observed, the observation accuracy can be improved, so that the coating process can be more accurately optimized, the coating quality is improved, the efficiency of the perovskite battery is improved, and meanwhile, the coating efficiency of the coating head can be improved, and the coating quality can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to coating equipment technical field especially relates to a coating device. BACKGROUND

[0002] Perovskite battery is a kind of new solar cell technology with great potential, has been widely used in photovoltaic power generation, optoelectronic devices, photoelectric sensor and other fields.In recent years, large enterprises and research institutions have entered the perovskite battery industry, the efficiency of perovskite battery begins to develop rapidly, perovskite battery has entered the automatic production stage.The quality of perovskite coating film directly affects the efficiency of perovskite battery, therefore, the coating process needs to be observed, and abnormal coating film conditions are found and analyzed in time, so as to adjust the coating parameters, improve the coating quality, and further improve the efficiency of perovskite battery.

[0003] In the prior art, since the coating head is covered in the cover, the cover is made of, for example, acrylic plate, and when observing outside the cover, there will be reflection, which affects observation, leading to inaccurate analysis.If stopping to observe, not only will affect the coating efficiency, but also will cause the coating liquid of the coated part to self-crystallize, thereby affecting the coating quality.

[0004] Therefore, it is urgent to design a device for observing the coating process. SUMMARY

[0005] The utility model aims at providing a kind of coating device, not only convenient for observing the coating process, but also can improve the accuracy of observation, so as to optimize the coating process more accurately, thereby improve the coating quality, and further improve the efficiency of perovskite battery, while also can improve the coating efficiency of coating head and improve the coating quality.

[0006] The utility model discloses the purpose using following technical scheme realizes:

[0007] A kind of coating device, comprising:

[0008] Support;

[0009] Coating assembly, the coating assembly is set to the support, the coating assembly includes coating head, the coating head is set with discharge slit to the side of substrate, coating liquid is formed liquid film by the discharge slit to the substrate and is coated;

[0010] Photographing unit and display, the photographing unit is set to the support, the photographing unit is used to photograph the image of the liquid film on the substrate, and / or, the photographing unit is used to photograph the image of liquid curtain between the discharge slit and the substrate, the display is used to show the image photographed by the photographing unit;

[0011] The photographing unit is capable of moving along the support in a direction perpendicular to the coating direction.

[0012] Preferably, the support comprises a first vertical column, a second vertical column, and a crossbeam arranged between the first vertical column and the second vertical column, and the photographing unit is arranged on the crossbeam.

[0013] Preferably, a groove extending in a direction perpendicular to the coating direction is arranged on one side of the crossbeam facing the substrate, and the photographing unit comprises a camera and a mounting seat, and the camera is arranged in the groove through the mounting seat.

[0014] Preferably, the photographing unit further comprises a first driving mechanism connected with the mounting seat, and the first driving mechanism is used to drive the mounting seat to move in a direction perpendicular to the coating direction; and / or,

[0015] The first driving mechanism is used to drive the mounting seat to deflect in the coating direction, so as to adjust the deflection angle of the camera in the coating direction.

[0016] Preferably, the first driving mechanism is a sliding rod.

[0017] Preferably, the crossbeam comprises a first crossbeam and a second crossbeam, the photographing unit comprises a first photographing unit and a second photographing unit, a first groove extending in a direction perpendicular to the coating direction is arranged on one side of the first crossbeam facing the substrate, the first photographing unit is arranged in the first groove, a second groove extending in a direction perpendicular to the coating direction is arranged on one side of the second crossbeam facing the substrate, and the second photographing unit is arranged in the second groove.

[0018] The first photographing unit and the second photographing unit are arranged on two sides of the coating head in the coating direction, respectively.

[0019] Preferably, the first crossbeam and the second crossbeam are arranged at intervals in the coating direction, and the coating head is arranged to be capable of ascending and descending through the gap between the first crossbeam and the second crossbeam.

[0020] Preferably, the coating assembly further comprises a mounting frame arranged on the support in a manner capable of ascending and descending, and the coating head is connected with the support through the mounting frame.

[0021] Preferably, the coating assembly further comprises a second driving mechanism arranged on the support and connected with the mounting frame, and the second driving mechanism is used to drive the coating head to ascend and descend; and / or,

[0022] The coating assembly further comprises a third driving mechanism arranged on the support and connected with the mounting frame, and the third driving mechanism is used for applying an acting force in the direction opposite to the direction of gravity to the coating head.

[0023] Preferably, the photographing unit and the display are connected by wired connection or wireless connection.

[0024] Compared with the prior art, the coating device has at least the following beneficial effects:

[0025] The coating device of the present application has the following advantages: the photographing unit can obtain the image of the coating condition of the coating head in time, and the image is displayed on the display; since the coating liquid has fluidity, the photographing unit can obtain the instantaneous state of the coating liquid; this not only facilitates the observation of the coating process, but also improves the accuracy of observation, so as to optimize and accelerate the improvement of the coating process more accurately, thereby improving the coating quality and reducing the defective rate, and further improving the efficiency of the perovskite battery; at the same time, the downtime of the coating device is avoided, which not only improves the operation efficiency of the coating device, but also avoids the self-crystallization of the coating liquid of the coated part due to downtime, ensuring the consistency of the coating, thereby improving the coating quality; the photographing unit moves along the support in the direction perpendicular to the coating direction, so that the photographing unit can take pictures of different areas, especially for large-size substrates, the photographing unit can take enlarged pictures of the part to be observed, so as to ensure the clarity of the pictures and the accuracy of the observation, and the number of photographing units can be reduced, thereby reducing the equipment cost. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is a structural schematic view of the coating device of the embodiment of the present application.

[0027] Figure 2 is a structural schematic view of the cross beam and the photographing unit in the embodiment of the present application.

[0028] Figure 3 is a structural schematic view of the photographing unit in the embodiment of the present application.

[0029] In the figure: 100, coating device; 1, support; 11, first vertical column; 12, second vertical column; 13, cross beam; 131, first cross beam; 132, second cross beam; 14, groove; 141, first groove; 142, second groove; 2, coating assembly; 21, coating head; 22, mounting frame; 23, second driving mechanism; 24, third driving mechanism; 3, photographing unit; 31, camera; 32, mounting seat; 33, first photographing unit; 34, second photographing unit. DETAILED DESCRIPTION

[0030] Example implementations will now be described more fully with reference to the accompanying drawings. Example implementations can, however, be implemented in many different forms and should not be construed as limited to the implementations set forth herein; rather, these implementations are provided so that this disclosure will be thorough and complete, and will fully convey the inventive aspects of the example implementations to those skilled in the art. Like reference numerals refer to like elements throughout the several views of the drawings, and description of the same elements will be omitted from the description of the several views.

[0031] The words expressing position and direction described in the present application are illustrated by taking the drawings as an example, but changes can also be made according to needs, and the changes made are included in the protection scope of the present application.

[0032] Referring to Figures 1 to 3 , the present application provides a coating device 100, comprising: a support 1, a coating assembly 2, a shooting part 3 and a display (not shown), the coating assembly 2 and the shooting part 3 can be arranged on the support 1, the shooting part 3 and the display can be connected by wire or wirelessly, and the shooting part 3 and the display can save images, so as to facilitate the user to use. The coating device 100 can also include a liquid supply system, which is used to provide coating liquid for the coating assembly 2.

[0033] Specifically, referring to Figure 1 , the material of the support 1 is preferably a rigid material, such as stainless steel, etc., to ensure that the support 1 has sufficient structural strength and prevents deformation during use. In the coating direction, the position of the support 1 can be fixed, and the substrate (not shown) can move relative to the support 1. In the coating direction, the position of the substrate can be fixed, and the support 1 can move relative to the substrate. In this embodiment, the coating direction is defined as the relative movement direction of the support 1, and the direction indicated by the arrow in Figure 1 is the coating direction, the front of the coating direction is the uncoated area, and the rear of the coating direction is the coated area.

[0034] The coating assembly 2 can be arranged on the support 1, and the coating assembly 2 can include a coating head 21, and the side of the coating head 21 facing the substrate can be provided with a discharge slit (not shown). The coating liquid can be coated on the substrate through the discharge slit to form a liquid film.

[0035] Referring to Figure 2 , the shooting part 3 can be arranged on the support 1, and the display is used to display the image shot by the shooting part 3. The display can magnify the image shot by the shooting part 3, so as to facilitate the user to observe. The shooting part 3 and the coating assembly 2 can move relative to the substrate along with the support 1 at the same time, that is, the position between the shooting part 3 and the coating assembly 2 can be relatively unchanged. That is, the shooting part 3 can shoot the coating process of the coating head 21 in real time to obtain a real-time image of the coating process.

[0036] The shooting unit 3 can be automatically focused on the discharge slot position of the coating head 21, the shooting unit 3 can be used to shoot the image of the liquid film on the substrate, and the shooting unit 3 can also be used to shoot the image of the liquid curtain between the discharge slot and the substrate. As a preferred mode, the shooting unit 3 can simultaneously shoot the image of the liquid film on the substrate and the image of the liquid curtain between the discharge slot and the substrate. By providing the shooting unit 3 on the support 1, the shooting unit 3 can timely obtain the image of the coating condition of the coating head 21, and display the image through the display. Since the coating liquid has fluidity, the shooting unit 3 can obtain the instantaneous state of the coating liquid, so not only is it convenient to observe the coating process, but also the accuracy of observation can be improved, so as to more accurately optimize and speed up the improvement progress of the coating process, thereby improving the coating quality and reducing the defective rate, and further improving the efficiency of the perovskite battery. At the same time, the coating device 100 is avoided to stop, not only can improve the operation efficiency of the coating device 100, but also can avoid the self-crystallization of the coating liquid of the coated part due to the stop, ensure the consistency of the coating, and thus improve the coating quality.

[0037] Wherein the shooting unit 3 can move along the support 1 in a direction perpendicular to the coating direction, and the user can select the area to be observed. By moving the shooting unit 3 along the support 1 in a direction perpendicular to the coating direction, the shooting unit 3 can shoot different areas, especially for large-size substrates, the shooting unit 3 can zoom in on the part to be observed to ensure the clarity of the shot and the accuracy of the observation, while also reducing the number of shooting units 3, thereby reducing equipment costs.

[0038] As a preferred mode, with reference to Figure 1 , the support 1 is, for example, a gantry support 1, which can include a first column 11, a second column 12, and a cross beam 13 disposed between the first column 11 and the second column 12, and the shooting unit 3 can be disposed on the cross beam 13. The first column 11 and the second column 12 are oppositely disposed, and the two ends of the cross beam 13 can be respectively connected with the first column 11 and the second column 12. The two ends of the coating assembly 2 can be respectively connected with the first column 11 and the second column 12.

[0039] In the present application, by providing the shooting part 3 on the support 1, the shooting part 3 can timely obtain the image of the coating condition of the coating head 21, and display the image through the display. Since the coating liquid has fluidity, the shooting part 3 can obtain the instantaneous state of the coating liquid. Thus, not only is it convenient to observe the coating process, but also the accuracy of observation can be improved, so as to more accurately optimize and speed up the improvement progress of the coating process, thereby improving the coating quality and reducing the defective rate, and further improving the efficiency of the perovskite battery. At the same time, the coating device 100 is avoided to be stopped, which not only can improve the operation efficiency of the coating device 100, but also can avoid the self-crystallization of the coating liquid of the coated part due to the stop, so as to ensure the consistency of the coating, thereby improving the coating quality. By moving the shooting part 3 along the support 1 in the direction perpendicular to the coating direction, the shooting part 3 can shoot different areas, especially for large-size substrates, the shooting part 3 can magnify the part to be observed to ensure the clarity of the shooting and the accuracy of the observation, and at the same time, the number of shooting parts 3 can be reduced, thereby reducing the equipment cost.

[0040] In a specific embodiment, the shooting part 3 can be arranged on the bottom surface, side surface or top surface of the cross beam 13, etc. In the present embodiment, the shooting part 3 is arranged on the bottom surface of the cross beam 13. Figure 2 、 Figure 3 The side of the cross beam 13 facing the substrate can be provided with a groove 14 extending in the direction perpendicular to the coating direction, and the shooting part 3 includes a camera 31 and a mounting seat 32, and the camera 31 is arranged in the groove 14 through the mounting seat 32. The mounting seat 32 can move in the direction perpendicular to the coating direction along the groove 14, thereby driving the camera 31 to move in the direction perpendicular to the coating direction.

[0041] The shooting part 3 can further include a first driving mechanism (not shown), which can be connected with the mounting seat 32. The first driving mechanism can be used to drive the mounting seat 32 to move in the direction perpendicular to the coating direction, so as to drive the camera 31 to move in the direction perpendicular to the coating direction. Thus, the camera 31 can shoot different areas, especially for large-size substrates, the camera 31 can magnify the part to be observed to ensure the clarity of the shooting and the accuracy of the observation, and at the same time, the number of cameras 31 can be reduced, thereby reducing the equipment cost.

[0042] The first driving mechanism can also be used to drive the mounting seat 32 to deflect in the coating direction, so as to adjust the deflection angle of the camera 31 in the coating direction, to adjust the viewing angle range of the camera 31, thereby obtaining a better shooting angle of the camera 31, and further improving the clarity and accuracy of the shooting of the camera 31, so as to facilitate the user to observe and analyze the image.

[0043] The first driving mechanism can be an automatic driving mechanism, such as a motor, or a manual driving mechanism. The automatic driving mechanism can realize automatic operation and improve the accuracy of the movement of the camera 31. In the embodiment, the first driving mechanism can be a sliding rod (not shown). The sliding rod has a simple structure, low manufacturing cost, and simple operation, which is convenient for users to use.

[0044] As a preferred mode, refer to Figure 1 、 Figure 2 , the cross beam 13 can include a first cross beam 131 and a second cross beam 132, and the shooting part 3 can include a first shooting part 33 and a second shooting part 34. The first cross beam 131 can be provided with a first groove 141 extending perpendicular to the coating direction on the side facing the substrate, and the first shooting part 33 can be arranged in the first groove 141. The second cross beam 132 can be provided with a second groove 142 extending perpendicular to the coating direction on the side facing the substrate, and the second shooting part 34 can be arranged in the second groove 142. The first groove 141 and the second groove 142 are arranged on both sides of the coating head 21 in the coating direction, and the first shooting part 33 and the second shooting part 34 are arranged on both sides of the coating head 21 in the coating direction. That is, the coating device 100 is provided with two shooting parts 3, and the two shooting parts 3 can shoot from two directions to obtain images at different angles or positions.

[0045] As an example, refer to Figure 2 , the first shooting part 33 can be arranged on the side in front of the coating head 21 in the coating direction, and the first shooting part 33 can shoot the liquid curtain between the discharge slit and the substrate. The second shooting part 34 can be arranged on the side behind the coating head 21 in the coating direction, and the second shooting part 34 can shoot the liquid film on the substrate. Of course, the second shooting part 34 can also shoot the liquid curtain between the discharge slit and the substrate.

[0046] The first cross beam 131 and the second cross beam 132 can be integrally formed, and the first cross beam 131 and the second cross beam 132 can also be split type. In the embodiment, refer to Figure 1 、 Figure 2 , the first cross beam 131 and the second cross beam 132 are split type, and the first cross beam 131 and the second cross beam 132 can be arranged at intervals in the coating direction. The coating head 21 can pass through the gap between the first cross beam 131 and the second cross beam 132 in a lifting manner.

[0047] In a specific embodiment, refer to Figure 1 , the coating assembly 2 can further include a mounting bracket 22, and the mounting bracket 22 is arranged on the support 1 in a lifting manner. The coating head 21 can be connected to the support 1 through the mounting bracket 22.

[0048] Refer to Figure 1The coating assembly 2 can further comprise a second driving mechanism 23 arranged on the support 1 and connected with the mounting frame 22. The second driving mechanism 23 can be used to drive the mounting frame 22 to move up and down, and the mounting frame 22 can drive the coating head 21 to move up and down. The number of the second driving mechanism 23 can be one or more. In the embodiment, the number of the second driving mechanism 23 is two. The two second driving mechanisms 23 are arranged on the first column 11 and the second column 12 respectively. The two second driving mechanisms 23 can drive the two ends of the mounting frame 22 to move up and down, and the mounting frame 22 drives the coating head 21 to move up and down. The two second driving mechanisms 23 are also preferably independent of each other. The second driving mechanism 23 can be a servo module, and of course can also be other types of driving components. As an example, the second driving mechanism 23 comprises a motor and a guide rail. The driving end of the motor moves up and down or telescopes along the guide rail. The mounting frame 22 is connected with the driving end of the motor.

[0049] In the width direction of the substrate, the two second driving mechanisms 23 can eliminate the problems of one high and one low of the two ends of the substrate or the two ends of the substrate caused by part machining errors, assembly errors, etc. When the surface of the substrate is not parallel to the coating head 21 in the width direction of the substrate, the two second driving mechanisms 23 can drive the two ends of the coating head 21 to move in different directions respectively, or one of the second driving mechanisms 23 is stationary, and the other second driving mechanism 23 drives one end of the coating head 21 to move up and down, so that the surface of the substrate is parallel to the coating head 21 in the width direction of the substrate. The distance from the upper surface of the substrate to the coating head 21 of the substrates located on different coating platforms is equal. Not only can the thickness of the coating liquid coated on the substrate be adjusted, but also the coating liquid can be uniformly coated on the substrate, thereby improving the photoelectric conversion efficiency of the perovskite battery.

[0050] In the length direction of the substrate, the two second driving mechanisms 23 can also eliminate the problems of one high and one low of the two ends of the substrate or the two ends of the substrate caused by part machining errors, assembly errors, etc. When the surface of the substrate is not parallel to the coating head 21 in the length direction of the substrate, the length direction of the substrate is the coating direction. The two second driving mechanisms 23 can simultaneously drive the coating head 21 to move in the same direction, so that the distance between the surface of the substrate and the coating head 21 in the length direction of the substrate remains equal. The distance from the upper surface of the substrates located on different coating platforms to the coating head 21 is equal. Not only can the thickness of the coating liquid coated on the substrate be adjusted, but also the coating liquid can be uniformly coated on the substrate, thereby improving the photoelectric conversion efficiency of the perovskite battery.

[0051] Reference Figure 1The coating assembly 2 further comprises a third driving mechanism 24, which can be arranged on the support 1 and connected with the mounting frame 22, and the third driving mechanism 24 can be used to apply an action force to the coating head 21 in the direction opposite to the direction of gravity. The number of the third driving mechanism 24 can be one or more, and in the embodiment, the number of the third driving mechanism 24 is two, and the two third driving mechanisms 24 are arranged on the first column 11 and the second column 12 respectively, and the two third driving mechanisms 24 are also preferably independent of each other. The third driving mechanism 24 can be a cylinder module, and of course can also be other types of balancing components. As an example, the third driving mechanism 24 comprises a cylinder and a push rod, the cylinder drives the push rod to lift or retract, and the cylinder can also keep the push rod stationary and maintain a certain pulling force or pushing force. The two third driving mechanisms 24 can be connected with the two ends of the mounting frame 22, that is, the third driving mechanism 24 can apply a certain pulling force or pushing force to the mounting frame 22. The third driving mechanism 24 can at least share part of the load of the second driving mechanism 23, so as to reduce the load of the second driving mechanism 23, thereby improving the repeat positioning accuracy of the second driving mechanism 23 or keeping the second driving mechanism 23 always at a high repeat positioning accuracy, improving the product quality, prolonging the service life of the second driving mechanism 23, reducing the replacement frequency of the second driving mechanism 23, improving the equipment use efficiency, and reducing the equipment use cost and maintenance cost. The load mainly refers to the gravity of the mounting frame 22 or the gravity of the coating head 21, and can also refer to the gravity of the mounting frame 22 and the gravity of the coating head 21.

[0052] Although the embodiments of the utility model have been shown and described above, it can be understood that the above-mentioned embodiments are exemplary and cannot be understood as limiting the utility model. The ordinary skilled in the art can change, modify, replace and transform the above-mentioned embodiments without departing from the principles and purposes of the utility model, and all these changes should belong to the protection scope of the utility model claim.

Claims

1. A coating apparatus, characterized in that, include: support; A coating assembly is disposed on the support. The coating assembly includes a coating head, and the coating head has a discharge slit on the side facing the substrate. The coating liquid is applied to the substrate through the discharge slit to form a liquid film. The device includes an imaging unit and a display. The imaging unit is disposed on the bracket and is used to capture images of the liquid film located on the substrate, and / or, the imaging unit is used to capture images of the liquid curtain between the discharge slit and the substrate. The display is used to display the images captured by the imaging unit. The imaging unit is capable of moving along the bracket in a direction perpendicular to the coating direction.

2. The coating apparatus according to claim 1, characterized in that, The support includes a first column, a second column, and a crossbeam disposed between the first column and the second column, with the camera unit disposed on the crossbeam.

3. The coating apparatus according to claim 2, characterized in that, The crossbeam has a groove extending perpendicular to the coating direction on the side facing the substrate. The imaging part includes a camera and a mounting base, and the camera is mounted in the groove via the mounting base.

4. The coating apparatus according to claim 3, characterized in that, The imaging unit further includes a first driving mechanism connected to the mounting base, the first driving mechanism being used to drive the mounting base to move perpendicular to the coating direction; and / or The first driving mechanism is used to drive the deflection angle of the mounting base in the coating direction to adjust the deflection angle of the camera in the coating direction.

5. The coating apparatus according to claim 4, characterized in that, The first driving mechanism is a sliding rod.

6. The coating apparatus according to claim 2, characterized in that, The crossbeam includes a first crossbeam and a second crossbeam, and the imaging part includes a first imaging part and a second imaging part. The first crossbeam is provided with a first groove extending perpendicular to the coating direction on the side facing the substrate, and the first imaging part is disposed in the first groove. The second crossbeam is provided with a second groove extending perpendicular to the coating direction on the side facing the substrate, and the second imaging part is disposed in the second groove. The first and second imaging parts are respectively disposed on both sides of the coating head in the coating direction.

7. The coating apparatus according to claim 6, characterized in that, The first crossbeam and the second crossbeam are spaced apart in the coating direction, and the coating head can be raised and lowered through the gap between the first crossbeam and the second crossbeam.

8. The coating apparatus according to claim 1, characterized in that, The coating assembly also includes a mounting frame that is vertically and flexibly mounted on the support, and the coating head is connected to the support via the mounting frame.

9. The coating apparatus according to claim 8, characterized in that, The coating assembly further includes a second drive mechanism, which is disposed on the bracket and connected to the mounting frame. The second drive mechanism is used to drive the coating head to move up and down; and / or The coating assembly further includes a third drive mechanism, which is disposed on the bracket and connected to the mounting frame. The third drive mechanism is used to apply a force against gravity to the coating head.

10. The coating apparatus according to claim 1, characterized in that, The camera unit and the display are connected by a wired or wireless connection.

Images