Perovskite solution coating and film forming device
By introducing a meter wheel and a pneumatic system in the perovskite solution coating film forming device, the solution waste and uneven thickness problems caused by uncertain material size are solved, and the solution output and material fixation are automatically controlled, which improves coating cloth efficiency and uniformity.
Patent Information
- Application Number
- CN202420732868.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-10
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-04-10
AI Technical Summary
When the existing perovskite solution coating film forming devices are difficult to achieve accurate fixation and uniform coating when processing materials of different sizes, resulting in waste of solutions and uneven thickness.
A perovskite solution coating film forming device including a meter wheel and a pneumatic system was designed. Through the position adjustment of the meter wheel and the friction rotation, the solution output is automatically controlled in combination with the pneumatic system to ensure uniform output of the solution, and Materials of different sizes are fixed by sliders and limiting structures.
The solution output is automatically controlled, avoiding the problem of waste of solution and uneven thickness, improving working efficiency, and accurately fixing materials of different sizes to ensure the stability and uniformity of the coating process.
Smart Images
Figure CN222197591U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of coating and film forming, in particular to a perovskite solution coating and film forming device. Background Art
[0002] A method of coating a paste polymer, a molten polymer or a polymer melt on paper, cloth, or a plastic film to obtain a composite material (film). Perovskite solution is one of the important methods for preparing perovskite materials. This method is mainly based on hydrothermal synthesis, using a certain concentration of calcium and titanium sources to form crystals under certain temperature and pressure conditions. The preparation process of perovskite solution may involve multiple steps, including the preparation, mixing, reaction, and subsequent treatment of raw materials. In the preparation process of perovskite solar cells, the configuration of perovskite solution is a key step. This usually involves the precise weighing, mixing, and selection of solvents of specific chemicals. For example, when configuring a perovskite solution, it may be necessary to weigh and mix lead iodide and methylammonium iodide in a certain molar ratio, and then select an appropriate solvent for dissolution. In addition, the perovskite solution can also be coated into a film, which requires the use of specific devices such as a coater or spraying equipment. During the coating process, the perovskite solution is evenly coated on the substrate, and then formed into a uniform perovskite film by heat treatment or other means.
[0003] In the process of coating the coating material with the existing coating film-forming device, since the size and length of the coating material are uncertain, each time the material is coated with the perovskite solution, it is necessary to manually control the amount of solution to coat it. In the case of manual control of the solution amount, insufficient solution or excessive solution accumulation will often result in uneven coating thickness with the previous one, which needs to be repaired again, resulting in waste of material and affecting work efficiency. In addition, materials of different widths cannot be accurately fixed, and are only fixed by their own weight and the gravity of the scraper, affecting work efficiency. Utility Model Content
[0004] (I) Technical problems solved: In view of the deficiencies in the prior art, the present invention provides a perovskite solution coating and film-forming device, which has a meter wheel design, and the position of the meter wheel can be adjusted to fix materials of different sizes. After fixation, the meter wheel rotates through friction when the slide moves, so that the upper air cylinder continuously provides air pressure to the atmosphere in the material box, thereby achieving the advantages of automatically controlling the output of the solution and preventing solution waste or uneven coating. It solves the problem that in the process of coating the coating material of the existing coating and film-forming device, since the size and length of the coating material are uncertain, each time the material is coated with the perovskite solution, it is necessary to manually control the output of the solution to coat it. When the solution amount is manually controlled, insufficient solution or excessive solution accumulation will often occur at the end, resulting in uneven coating thickness with the previous coating, which needs to be repaired again, resulting in waste of materials and affecting work efficiency.
[0005] (ii) Technical solution: To achieve the above-mentioned purpose, the utility model provides the following technical solution: a perovskite solution coating film-forming device, comprising a workbench and a discharging assembly, the discharging assembly comprising a slide rail, a slider is movably installed outside the slide rail, a wheel axle is movably installed in a groove outside the slider, a meter wheel is fixedly installed on the outer wall of the wheel axle, a rotating wheel is fixedly installed on the extended part above the wheel axle, a connecting rod is arranged above the rotating wheel, a rotating rod is movably connected to the outer wall of the connecting rod, a telescopic rod is movably connected to the outer wall of the rotating rod, the telescopic rod is movably installed inside a limiting base, the limiting base is fixedly installed above the slider, a push rod is fixedly connected to the outer wall of the telescopic rod, and the push rod is movably installed inside an air cylinder.
[0006] Preferably, the air cylinder is fixedly installed inside the fixed base, the fixed base is fixedly installed above the sliding block, and an air nozzle is provided on the outer wall of the fixed base.
[0007] Preferably, an air pipe is fixedly connected to the outer wall of the air nozzle, the air pipe is movably pressed inside the slide, and a material box is fixedly connected to the outer wall of the air pipe.
[0008] Preferably, sealing push plates are provided on both sides of the material box, the two sealing push plates are filled with perovskite solution, cavities are provided on the outer sides of the two sealing push plates, and the air pipe is connected to the cavity of the material box.
[0009] Preferably, two limiting holes are provided on both sides of the outer wall of the slider, an insertion rod is movably installed inside the limiting hole of the slider, a pressing plate is fixedly connected to the outer wall of the insertion rod, a supporting spring is fixedly connected to the outer wall of the pressing plate, and the supporting spring is fixedly connected to the outer wall of the slider.
[0010] Preferably, two groups of sliding modules are arranged on both sides of the workbench, a slide plate is slidably installed on the outside of the sliding module, and a slide rail is fixedly installed on the outer wall of the slide plate.
[0011] Preferably, the material box is fixedly connected to a coating assembly via a pipeline, and the coating assembly includes a support plate, which is fixedly mounted on the outer walls of the slide plates on both sides, and cylinders are provided on both sides above the support plate, and the cylinders are fixedly connected to a push rod via an output shaft, and a coating head is fixedly connected below the push rod.
[0012] Preferably, the discharge box inside the coating head is connected to the material box through a pipeline, and a plurality of discharge ports are opened below the coating head to discharge the material evenly.
[0013] (III) Beneficial effects: Compared with the prior art, the utility model provides a perovskite solution coating film forming device, which has the following beneficial effects:
[0014] 1. The perovskite solution coating film-forming device achieves that during the mobile coating process, the meter wheel rotates through friction, so that the upper rotating wheel drives the push rod to continuously expand and contract inside the air cylinder to form a pneumatic system. The air cylinder continuously pumps air into the internal cavity of the material box to increase the air pressure under the expansion and contraction of the push rod. Under the action of the increased air pressure, the sealing push plates on both sides of the material box move inward at the same time to squeeze the perovskite solution, so that the perovskite solution is normally output to the coating head to continuously provide solution for the subsequent coating process. After the meter wheel moves out of the coating material, the push rod stops expanding and contracting, and the solution also stops supplying, thereby avoiding the waste of solution and ensuring the uniformity of coating while eliminating the need for manual control of coating output.
[0015] 2. The perovskite solution coating film-forming device, through the cooperation of the slider and the meter wheel, can achieve the goal of coating different sizes of coating materials by adjusting the positions of the sliders on both sides so that the meter wheels on both sides only fit the coating materials, thereby clamping and fixing the coating materials to prevent the material from shifting during the coating process and causing uneven coating. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0017] Figure 2 This is a schematic diagram of the overall structure of the skateboard of the utility model;
[0018] Figure 3 This is a schematic diagram of the partial structure of the discharging component of the utility model;
[0019] Figure 4 For this utility model Figure 2 A magnified image;
[0020] Figure 5 This is a schematic diagram of the coating component structure of the utility model.
[0021] The numbers in the figure are:
[0022] 1. Workbench; 11. Sliding module; 12. Slide plate; 2. Discharging assembly; 21. Slide rail; 22. Sliding block; 23. Insert rod; 24. Press plate; 25. Support spring; 26. Axle; 27. Meter wheel; 28. Rotating wheel; 29. Connecting rod; 210. Rotating rod; 211. Telescopic rod; 212. Limiting base; 213. Push rod; 214. Air cylinder; 215. Fixed base; 216. Air nozzle; 217. Air pipe; 3. Coating assembly; 31. Support plate; 32. Air cylinder; 33. Push rod; 34. Coating head; 4. Material box. DETAILED DESCRIPTION
[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0024] See also Figure 1-3 A perovskite solution coating film forming device includes a workbench 1 and a discharging assembly 2. Two sets of sliding modules 11 are arranged on both sides of the workbench 1. The slide plates 12 are driven by a motor to rotate and slide on the slide plates 12, thereby realizing horizontal movement. The slide plates 12 are slidably installed on the outside of the slide plates 11, and the outer wall of the slide plates 12 is fixedly installed with slide rails 21.
[0025] See also Figure 1-3 The discharging component 2 includes a slide rail 21, a slider 22 is movably installed outside the slide rail 21, and two limiting holes are provided on both sides of the outer wall of the slider 22. An insertion rod 23 is movably installed inside the limiting hole of the slider 22. A pressing plate 24 is fixedly connected to the outer wall of the insertion rod 23, and a supporting spring 25 is fixedly connected to the outer wall of the pressing plate 24. The supporting spring 25 is fixedly connected to the outer wall of the slider 22. The position of the slider 22 is fixed and unlocked by the movable installation of the insertion rod 23 in the limiting hole to ensure stability during the coating process. The insertion and removal of the insertion rod 23 are controlled by pressing the pressing plate 24. The supporting spring 25 ensures that the insertion rod 23 can automatically return to its initial position.
[0026] See also Figure 2-4A wheel axle 26 is movably mounted in the groove outside the slider 22, a meter wheel 27 is fixedly mounted on the outer wall of the wheel axle 26, a rotating wheel 28 is fixedly mounted on the extended portion above the wheel axle 26, a connecting rod 29 is arranged above the rotating wheel 28, a rotating rod 210 is movably connected to the outer wall of the connecting rod 29, and a telescopic rod 211 is movably connected to the outer wall of the rotating rod 210. These components work together to clamp and fix the material to be coated. The meter wheel 27 directly contacts the coating material and measures the coating material by rotating it. The rotating wheel 28 converts the rotation of the meter wheel 27 into linear motion. The telescopic rod 211 is movably installed inside the limiting base 212. The limiting base 212 is fixedly installed above the slider 22. The outer wall of the telescopic rod 211 is fixedly connected with a push rod 213. The push rod 213 is movably installed inside the air cylinder 214. The air cylinder 214 is fixedly installed inside the fixed base 215. The fixed base 215 is fixedly installed above the slider 22. The outer wall of the fixed base 215 is provided with an air nozzle 216. The outer wall of the air nozzle 216 is fixedly connected with an air pipe 217, which is movable inside the slide 12. The outer wall of the air pipe 217 is fixedly connected with the material box 4. Sealing push plates are arranged on both sides of the material box 4. The two sealing push plates are filled with perovskite solution. The outer sides of the two sealing push plates are provided with cavities. The air pipe 217 is connected to the cavity of the material box 4. These components constitute a pneumatic system. The movement of the telescopic rod 211 pushes the push rod 213 to move in the air cylinder 214, thereby changing the air cylinder 2 The air pressure in the air cylinder 14, the air nozzle 216 and the air pipe 217 are used to connect the air cylinder 214 and the material box 4 to realize the transmission of air pressure. The material box 4 is filled with a perovskite solution and is provided with a sealing push plate to ensure that the solution can remain sealed when not in use. The cavity outside the material box 4 is connected to the air cylinder 214 through the air pipe 217. When the air pressure in the air cylinder 214 changes, it will affect the air pressure in the cavity through the air pipe 217, and then push the sealing push plate to move, thereby controlling the outflow of the perovskite solution.
[0027] See also Figure 1 , Figure 5The material box 4 is fixedly connected to the coating assembly 3 through a pipeline. The coating assembly 3 includes a support plate 31, which is fixedly installed on the outer walls of the slide plates 12 on both sides. Cylinders 32 are arranged on both sides above the support plate 31. The cylinder 32 is fixedly connected to a push rod 33 through an output shaft. A coating head 34 is fixedly connected below the push rod 33. The material box inside the coating head 34 is connected to the material box 4 through a pipeline. A plurality of material outlets are opened below the coating head 34 for uniform material discharge. The cylinder 32 is a key driving component in the coating assembly. By controlling the telescopic movement of the cylinder 32, the push rod 33 and the coating head 34 can be driven to move up and down. The push rod 33 is used as a connecting gas. The intermediate component between the cylinder 32 and the coating head 34 has the coating head 34 fixedly connected below it. When the cylinder 32 is extended or retracted, the push rod 33 will move accordingly, thereby adjusting the distance between the coating head 34 and the coating substrate, thereby achieving precise control of the coating thickness. A discharge box is provided inside the coating head 34, and the discharge box is connected to the material box 4 through a pipe. In this way, the perovskite solution can flow from the material box through the pipe into the discharge box of the coating head, thereby providing solution for the subsequent coating process. A number of discharge ports are provided below the coating head 34, and these discharge ports are evenly distributed, thereby ensuring that the solution can flow out evenly and continuously during the coating process, thereby forming a uniform coating film layer.
[0028] Working principle: First, the operator places the coating material on the workbench, then presses the button 24 to pull out the insertion rod 23 to stop fixing, and moves the sliders 22 on both sides to fit the meter wheels 27 on both sides to the coating material. The coating material is fixed and limited by the meter wheels 27. After fixing, the cylinder 32 is controlled to extend and retract, so that the coating head 34 is adjusted according to the thickness of the coating material. After the adjustment is completed, the sliding module is turned on to drive the slides 12 on both sides to move.
[0029] Secondly, when the slide plates 12 on both sides move, the meter wheel 27 rotates due to the friction between the meter wheel 27 and the coating material. When the meter wheel 27 rotates, it drives the rotating wheel 28 arranged above the wheel shaft 26 to rotate. When the rotating wheel 28 rotates, it drives the rotating rod 210 to move. The rotating rod 210 pulls the telescopic rod 211 to perform telescopic movement inside the limiting base 212. The telescopic rod 211 drives the push rod 213 to perform telescopic movement inside the air cylinder 214. When the push rod 213 is continuously extended and retracted in the air cylinder 214, a The pneumatic system is formed, and the air cylinder 214 continuously pumps air into the material box 4. The air pressure inside the cavities on both sides of the material box 4 increases, and the sealing push plates on both sides are pushed inward by the air pressure, so that the perovskite solution inside enters the output box of the coating head 34 in the pipeline, and the subsequent coating process provides the solution. A number of discharge ports are opened under the coating head 34, and these discharge ports are evenly distributed to ensure that the solution can flow out evenly and continuously during the coating process, thereby forming a uniform coating film layer.
[0030] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.
[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A perovskite solution coating film forming device, comprising a workbench (1) and a discharging assembly (2), characterized in that: The discharging assembly (2) comprises a slide rail (21), a slider (22) is movably mounted outside the slide rail (21), a wheel shaft (26) is movably mounted in a groove outside the slider (22), a meter wheel (27) is fixedly mounted on the outer wall of the wheel shaft (26), a rotating wheel (28) is fixedly mounted on the extended portion above the wheel shaft (26), a connecting rod (29) is arranged above the rotating wheel (28), a rotating rod (210) is movably connected to the outer wall of the connecting rod (29), a telescopic rod (211) is movably connected to the outer wall of the rotating rod (210), the telescopic rod (211) is movably mounted inside a limiting base (212), the limiting base (212) is fixedly mounted above the slider (22), a push rod (213) is fixedly connected to the outer wall of the telescopic rod (211), and the push rod (213) is movably mounted inside an air cylinder (214).
2. The perovskite solution coating film forming device according to claim 1, characterized in that: The air cylinder (214) is fixedly mounted inside a fixed base (215), the fixed base (215) is fixedly mounted above the slider (22), and an air nozzle (216) is provided on the outer wall of the fixed base (215).
3. The perovskite solution coating film forming device according to claim 2, characterized in that: The outer wall of the air nozzle (216) is fixedly connected to an air pipe (217), the air pipe (217) is movably pressed inside the slide plate (12), and the outer wall of the air pipe (217) is fixedly connected to a material box (4).
4. The perovskite solution coating film forming device according to claim 3, characterized in that: Sealing push plates are provided on both sides of the material box (4), the two sealing push plates contain a perovskite solution, a cavity is provided on the outside of the two sealing push plates, and the air pipe (217) is connected to the cavity of the material box (4).
5. The perovskite solution coating film forming device according to claim 1, characterized in that: Two limiting holes are provided on both sides of the outer wall of the slider (22), an insert rod (23) is movably installed inside the limiting hole of the slider (22), a pressing plate (24) is fixedly connected to the outer wall of the insert rod (23), a supporting spring (25) is fixedly connected to the outer wall of the pressing plate (24), and the supporting spring (25) is fixedly connected to the outer wall of the slider (22).
6. The perovskite solution coating film forming device according to claim 1, characterized in that: Two groups of sliding modules (11) are arranged on both sides of the workbench (1), a slide plate (12) is slidably mounted on the outside of the sliding module (11), and a slide rail (21) is fixedly mounted on the outer wall of the slide plate (12).
7. The perovskite solution coating film forming device according to claim 3, characterized in that: The material box (4) is fixedly connected to a coating assembly (3) via a pipeline. The coating assembly (3) comprises a support plate (31). The support plate (31) is fixedly mounted on the outer walls of the slide plates (12) on both sides. Cylinders (32) are provided on both sides above the support plate (31). The cylinder (32) is fixedly connected to a push rod (33) via an output shaft. A coating head (34) is fixedly connected below the push rod (33).
8. The perovskite solution coating film forming device according to claim 7, characterized in that: The material discharging box inside the coating head (34) is connected to the material box (4) via a pipeline, and a plurality of material discharging openings are provided below the coating head (34) for evenly discharging material.