Coating table mechanism and coating apparatus

Abstract

The application relates to a coating table mechanism and a coating device, by adjusting the height of the coating table, various process parameter settings can be flexibly matched, the coating head and the substrate placed on the coating table can keep a good coating distance, so that accurate coating thickness control can be realized, the coating quality and consistency are improved, and the coating precision is improved. The centering cylinder assembly can accurately limit and adjust the position of the substrate on the coating table, ensure that the position of the substrate placed each time is accurate, make the coating track of the coating head on the substrate keep high consistency, reduce the problems of uneven coating area and poor edge coating effect caused by the position deviation of the substrate, and improve the coating precision and coating quality. Taking perovskite material as an example, by improving the stability, coating thickness uniformity and precision of coating, the production quality and performance consistency of solar cells and other products can be improved.

Description

Technical Field

[0001] This application relates to the field of coating technology, and in particular to coating table mechanisms and coating apparatus. Background Technology

[0002] With the continuous growth of energy demand and increasing emphasis on clean energy, solar energy, as a sustainable green energy source, has attracted much attention in terms of related technological development. Perovskite, as a novel solar cell material, has demonstrated numerous advantages, such as high potential photoelectric conversion efficiency, and has broad application prospects in the field of solar cells.

[0003] However, the application of perovskite in solar cell production, especially in the crucial coating process, faces numerous technical challenges. The coating precision requirements for perovskite are extremely high, as the uniformity of the coating plays a decisive role in the final conversion efficiency of the solar cell. If the material uniformity cannot be guaranteed during the coating process, such as in cases where the coating is too thick or too thin in certain areas, the photoelectric conversion efficiency of the solar cell will be poor in actual use, significantly impacting its performance and overall application value.

[0004] Therefore, existing coating devices suffer from poor coating accuracy. Utility Model Content

[0005] Therefore, it is necessary to provide a coating table mechanism and a coating device to address the problem of poor stability in existing coating devices.

[0006] A coating table mechanism, the coating table mechanism comprising:

[0007] frame;

[0008] A coating table is provided on the frame, and the coating table is provided with an adsorption tank and through holes;

[0009] A receiving unit, disposed on the frame, includes a drive assembly, a lifting assembly, and a plurality of ejector pin assemblies connected to the lifting assembly; the plurality of ejector pin assemblies are arranged at intervals along a first direction, and the ejector pin assemblies pass through the through holes; the drive assembly is used to drive the lifting assembly to move in a vertical direction, thereby causing the ejector pin assemblies to rise or fall, so that the substrate is transferred to at least one of the ejector pin assemblies and the coating table;

[0010] A support adjustment assembly is connected to the coating table and is used to drive the coating table to rise or fall along the vertical direction;

[0011] Multiple alignment cylinder assemblies are provided, with at least two alignment cylinder assemblies respectively disposed on two sides of the coating table along a first direction; at least two alignment cylinder assemblies are respectively disposed on two sides of the coating table along a second direction, and the alignment cylinder assemblies are used to abut against the side of the substrate; any two of the first direction, the second direction and the vertical direction intersect.

[0012] In one embodiment, the coating table mechanism further includes a pre-coating receiving box assembly disposed on one side of the coating table, and the pre-coating receiving box assembly is connected to the calibrating cylinder assembly.

[0013] In one embodiment, the ejector pin assembly includes a connecting plate, a plurality of ejector pin supports, and a first ejector pin connected to each of the ejector pin supports; the plurality of ejector pin supports are spaced apart on the connecting plate along a second direction.

[0014] In one embodiment, a flexible support is connected to the side of the first ejector pin away from the ejector pin support;

[0015] And / or, the receiving unit further includes an aluminum profile connector connected to the lifting assembly; the connecting plate is connected to the aluminum profile connector.

[0016] In one embodiment, the receiving unit further includes a lifting stroke detection component;

[0017] And / or, the receiving unit further includes a linear bearing guide assembly.

[0018] In one embodiment, the support adjustment assembly includes an adjustment base, a support column connected to the adjustment base, a locking nut connected to the support column, and a connecting flange connected to the locking nut, the connecting flange being connected to the coating table.

[0019] In one embodiment, the aligning cylinder assembly includes a cylinder locking plate, a lifting cylinder connected to the cylinder locking plate, a forward cylinder connected to the lifting cylinder, and a flexible guide wheel connected to the forward cylinder, the flexible guide wheel being used to abut against the side of the substrate.

[0020] In one embodiment, the coating stage mechanism further includes a substrate detection component disposed on the side of the coating stage, the substrate detection component being used to detect the substrate;

[0021] And / or, the coating table mechanism further includes a wiring component, which has a wiring groove.

[0022] In one embodiment, the drive assembly includes a servo motor and a coupling connected to the servo motor.

[0023] A coating apparatus includes a coating head and a coating table mechanism as described above, the coating head being connected to the frame and positioned above the coating table, the coating head being used to apply coating material onto a substrate located on the coating table.

[0024] The aforementioned coating stage mechanism and coating device drive the ejector pin assembly to rise or fall via a drive component and a lifting component, thereby picking up the substrate and transferring it to the coating stage. By adjusting the height of the coating stage, various process parameter settings can be flexibly matched, ensuring a good coating distance between the coating head and the substrate placed on the coating stage. This achieves precise coating thickness control, improves coating quality and consistency, and ultimately enhances coating accuracy. The alignment cylinder assembly precisely limits and adjusts the position of the substrate on the coating stage, ensuring accurate placement of the substrate each time. This allows the coating trajectory of the coating head on the substrate to maintain a high degree of consistency, reducing problems such as uneven coating areas and poor edge coating effects caused by substrate position deviations, thus improving coating accuracy and quality. Taking perovskite materials as an example, improving coating stability, coating thickness uniformity, and accuracy helps improve the production quality and performance consistency of products such as solar cells. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments or exemplary embodiments of this application, the drawings used in the description of the embodiments or exemplary embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of a coating table mechanism provided in one embodiment of this application.

[0027] Figure 2 for Figure 1 A schematic diagram of the coating table mechanism shown from another perspective.

[0028] Figure 3 for Figure 2 A schematic diagram of the receiving unit in the coating table mechanism shown.

[0029] Figure 4 for Figure 2 A schematic diagram of the support adjustment assembly in the coating table mechanism shown.

[0030] Figure 5 for Figure 2 A schematic diagram of the calibrating cylinder assembly in the coating table mechanism shown.

[0031] Reference numerals: 100, Coating table; 110, Adsorption tank; 120, Through hole; 200, Receiving unit; 210, Drive assembly; 220, Lifting assembly; 230, Ejector pin assembly; 231, Connecting plate; 232, Ejector pin support; 233, First ejector pin; 234, Flexible support column; 240, Aluminum profile connector; 250, Lifting stroke detection assembly; 260, Linear bearing guide assembly; 300, Support seat adjustment assembly; 310, Adjusting base; 320, Support column; 330, Locking nut; 340, Connecting flange; 400, Correction cylinder assembly; 410, Cylinder locking plate; 420, Lifting cylinder; 430, Forward cylinder; 440, Flexible guide wheel; 500, Pre-coated receiving box assembly; 600, Substrate detection assembly; 700, Wiring trough. Detailed Implementation

[0032] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0033] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0034] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0035] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0036] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0037] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0038] See Figures 1 to 3As shown, an embodiment of the coating table mechanism provided in this application includes a frame, a coating table 100, a receiving unit 200, a support adjustment assembly 300, and multiple alignment cylinder assemblies 400. The coating table 100 is disposed on the substrate frame and is provided with an adsorption groove 110 and a through hole 120. The receiving unit 200 is disposed on the substrate frame and includes a drive assembly 210, a lifting assembly 220, and multiple ejector pin assemblies 230 connected to the lifting assembly 220. The multiple substrate ejector pin assemblies 230 are arranged at intervals along a first direction, and the substrate ejector pin assemblies 230 pass through the substrate through hole 120. The drive assembly 210 is used to drive... The lifting assembly 220 moves vertically, causing the substrate ejector assembly 230 to rise or fall, so that the substrate is transferred to at least one of the substrate ejector assembly 230 and the coating stage 100; the support adjustment assembly 300 is connected to the coating stage 100 and is used to drive the coating stage 100 to rise or fall vertically along the substrate; a plurality of alignment cylinder assemblies 400, at least two alignment cylinder assemblies 400 are respectively disposed on two sides of the coating stage 100 along a first direction; at least two alignment cylinder assemblies 400 are respectively disposed on two sides of the coating stage 100 along a second direction, and the alignment cylinder assemblies 400 are used to abut against the side of the substrate.

[0039] like Figure 1 As shown, the first direction is the X direction in the diagram, the second direction is the Y direction, and the vertical direction is the Z direction. It can be understood that the first direction can be the length direction of the coating table 100, the second direction can be the width direction of the coating table 100, and the vertical direction can be the thickness direction of the coating table 100.

[0040] The drive component 210 drives the lifting component 220 to rise, which in turn drives the ejector pin component 230 to rise to the receiving position. A robot, such as a four-axis robot, can place the substrate on the ejector pin component 230 and then exit. The drive component 210 drives the ejector pin component 230 to fall through the lifting component 220 until the ejector pin component 230 reaches the height of the coating table 100, so that the substrate can be placed on the coating table 100. The position of the substrate is corrected by the alignment cylinder component 400. After the correction is completed, the substrate is picked up by the coating table 100, so that the coating head can be used to coat the substrate.

[0041] The push pin assembly 230 is driven to rise or fall by the drive assembly 210 and the lifting assembly 220, thereby picking up the substrate and transferring it to the coating stage 100. By adjusting the height of the coating stage 100, various process parameter settings can be flexibly matched to ensure a good coating distance between the coating head and the substrate placed on the coating stage 100, thereby achieving precise coating thickness control, improving coating quality and consistency, and thus improving coating accuracy. The alignment cylinder assembly 400 can precisely limit and adjust the position of the substrate on the coating stage 100, ensuring that the substrate is placed accurately each time, so that the coating trajectory of the coating head on the substrate can maintain a high degree of consistency, reducing problems such as uneven coating area and poor edge coating effect caused by substrate position deviation, and improving coating accuracy and coating quality. Taking the coating material as perovskite as an example, by improving the stability, uniformity and accuracy of coating, it helps to improve the production quality and performance consistency of products such as solar cells.

[0042] In some embodiments, the coating table 100 is made of marble. Marble has a very low coefficient of thermal expansion. Compared to many metal materials, its dimensional changes are minimal when the ambient temperature fluctuates. This provides a relatively stable platform for the coating operation, helping to ensure the uniformity and precision of the coating and avoiding problems such as changes in the relative position between the substrate and the coating head due to thermal expansion and contraction, resulting in a more stable and reliable coating effect. Coating operations often require multiple repetitions, and the surface of the coating table 100 must withstand the placement and movement of the substrate and contact with coating-related components over a long period. Marble has high hardness, is not easily scratched or worn, and can maintain its surface flatness and smoothness for a long time, reducing uneven coating caused by table surface wear, extending the service life of the coating table 100, and reducing equipment replacement and maintenance costs. During the coating process, various chemical reagents and coatings may come into contact with the marble. Marble has good resistance to most common chemical substances and is not prone to chemical reactions, ensuring the stability of its material properties. It will not cause damage to the table structure or release impurities that affect the coating quality due to chemical corrosion, helping to maintain a clean and stable coating working environment. In some embodiments, the frame is made of marble.

[0043] In some embodiments, the coating surface of the coating table 100 can be divided into multiple support areas, each of which can employ a separate vacuum adsorption structure. By individually setting vacuum adsorption structures for multiple support areas, the vacuum adsorption function of the corresponding area can be activated selectively according to the actual coverage area of ​​the substrate. This ensures that the substrate is effectively adsorbed and fixed at all critical locations, precisely positioned on the coating table 100, and prevents displacement or shaking of the substrate during the coating process, providing a stable support foundation for high-quality coating. The independent vacuum adsorption structure of each support area can flexibly adapt to substrates of different sizes and shapes. For example, for smaller substrates, only the adsorption function of the small support area where it is located needs to be activated; while for large-sized substrates, the adsorption of multiple related support areas can be activated simultaneously to ensure that the large substrate can be fully and stably adsorbed and fixed, improving the compatibility and versatility of the coating table 100 for substrates of different specifications. The vacuum adsorption structures of each bearing area are relatively independent. After long-term use, if the adsorption components in a certain area are damaged or aged, the adsorption structure of that area can be easily maintained or replaced separately without having to completely update the entire adsorption system of the coating station 100. This reduces maintenance costs and makes it easier to store the corresponding spare parts, making the maintenance and management of the equipment more convenient and efficient.

[0044] In some embodiments, the drive assembly 210 includes a servo motor and a coupling connected to the servo motor. The axial direction of the servo motor may be parallel to a second direction, and the axial direction of the coupling may be parallel to a first direction. A bevel gear set may be provided between the coupling and the servo motor, the bevel gear set including a driving bevel gear connected to the servo motor and a driven bevel gear connected to the coupling, thereby transmitting the rotational power of the servo motor to the coupling. In some embodiments, lifting assemblies 220 are provided at both ends of the coupling along its axial direction. The synchronous lifting movement of the two sets of lifting assemblies 220 ensures that multiple ejector pin assemblies 230 rise or fall uniformly, ensuring horizontality and thus ensuring the horizontality of the substrate.

[0045] In some embodiments, the lifting assembly 220 may include multiple transmission components for converting rotational motion into lifting motion. For example, the lifting assembly 220 may include a gear sleeved on a coupling and a rack meshing with the gear. The rack is connected to the ejector assembly 230. A servo motor drives the coupling to rotate, which in turn drives the gear to rotate, and then drives the rack to rise or fall, causing the ejector assembly 230 to rise or fall. In other embodiments, the lifting assembly 220 may include a driving bevel gear, a driven bevel gear meshing with the driving bevel gear, and a ball screw. The driving bevel gear is sleeved on the coupling, and a ball screw is coaxially connected to the driven bevel gear. The driven bevel gear drives the ball screw to rotate, and then the rotational motion is converted into lifting motion through the ball screw nut, realizing the raising or lowering of the ejector assembly 230.

[0046] See Figures 1 to 3 As shown, in one embodiment, the coating station mechanism further includes a pre-coating receiving box assembly 500 disposed on one side of the coating station 100, and the substrate pre-coating receiving box assembly 500 is connected to the alignment cylinder assembly 400. The pre-coating receiving box assembly 500 includes a profile fixing plate and a receiving box connected to the profile fixing plate, and the profile fixing plate is connected to the alignment cylinder assembly 400 on the side of the coating station 100. Before coating onto the substrate, the coating head first applies the coating material onto the pre-coating receiving box.

[0047] In paint supply systems, some air inevitably gets mixed in. When paint is first extruded from the coating head, this air flows out with the paint, causing uneven initial flow, resulting in intermittent or unstable flow rates in certain areas. By having the coating head first apply paint to the pre-coating receiving box, the paint can expel the trapped air during this process. This allows the paint to flow out evenly, continuously, and stably when subsequently coated onto the substrate, ensuring uniform coating thickness and consistent coating quality. After the paint is transported from the storage container to the coating head through pipes, its flow rate may be unstable due to factors such as pipe resistance and pressure changes. Pre-coating on the pre-coating receiving box provides a buffer and adjustment phase for the paint, allowing it to form a stable flow rate at the coating head. This avoids problems such as inconsistent coating thickness caused by flow rate fluctuations, and helps to accurately control the amount and uniformity of the coating. Because the coating is initially unstable, direct application to the substrate can lead to problems such as coating buildup, uneven coating, and impurities. These issues negatively impact substrate quality and may even render the entire substrate unusable. The pre-coating tray allows the coating to undergo its initial unstable transition on the substrate, isolating these potential defects from the substrate. This ensures the substrate receives a uniform, high-quality coating, improving yield and reducing production costs.

[0048] See Figures 1 to 3As shown, in one embodiment, the substrate ejector pin assembly 230 includes a connecting plate 231, a plurality of ejector pin supports 232, and a first ejector pin 233 connected to each substrate ejector pin support 232; the plurality of substrate ejector pin supports 232 are spaced apart on the substrate connecting plate 231 along a second direction. In coating and other processes, the substrate needs to be accurately placed in a specific position to ensure that the coating area and accuracy meet requirements. The plurality of ejector pins are mounted on the connecting plate 231 through their respective ejector pin supports 232, enabling the substrate to be positioned from different points. By rationally designing the ejector pin layout, the position of the substrate in the plane can be precisely defined, ensuring that it is always placed in the accurate coordinate position, effectively avoiding positional shifts and angular deviations of the substrate, and providing a precise positioning basis for subsequent coating, processing, and other procedures. The ejector pins, in contact with the substrate, provide support and distribute the loads such as gravity on the substrate. Multiple ejector pins work together to support the substrate from different positions, ensuring that the substrate remains stable throughout the entire operation (such as when waiting for coating or undergoing other processing on the coating station 100). It will not shake or tilt due to its own weight or slight external disturbances, thus ensuring the smoothness of the process operation. This is beneficial to improving the quality of coating and other processes and avoiding problems such as uneven coating caused by substrate instability.

[0049] Since the ejector pins are connected to the connecting plate 231 via ejector pin supports 232, the layout of the ejector pins can be flexibly adjusted by changing the installation position of the ejector pin supports 232 on the connecting plate 231 or by increasing or decreasing the number of ejector pin supports 232 and ejector pins. This allows for rapid reconfiguration of the ejector pin assembly 230 for substrates of different sizes and shapes, enabling it to adapt well to the positioning and support requirements of various substrate specifications, thus enhancing the overall equipment's compatibility with diverse production tasks. By integrating multiple ejector pin supports 232 and ejector pins through the connecting plate 231, during equipment assembly, the entire substrate ejector pin assembly 230 can be installed as a whole into the corresponding position. Compared to installing individual ejector pins, this greatly simplifies the installation process, improves installation efficiency, and also facilitates ensuring the relative positional accuracy between the ejector pins, reducing problems such as inaccurate positioning caused by installation errors.

[0050] See Figures 1 to 3As shown, in one embodiment, a flexible support column 234 is connected to the side of the first ejector pin 233 facing away from the ejector pin support 232 on the substrate. During positioning and support operations on the substrate, the ejector pin is in direct contact with the substrate. If the material of the ejector pin tip is too hard or the structure is too rigid, scratches and abrasions can easily be left on the substrate surface, affecting the substrate's appearance quality and subsequent performance. The flexible support column 234, with its elastic deformation capability and relatively soft and smooth PEEK material, ensures support and positioning while minimizing damage to the substrate surface, guaranteeing its flatness and integrity. During equipment operation, slight vibrations and shaking may occur, or impacts may occur when placing or removing the substrate. The ejector pin of the flexible support column 234 acts as a buffer, absorbing these external impacts and preventing damage such as cracking or deformation caused by large instantaneous impacts, further improving the substrate's safety and stability throughout the entire operation.

[0051] In some embodiments, the flexible support 234 can be made of PEEK (polyether ether ketone). PEEK's excellent flexibility allows it to better conform to the substrate surface, resulting in a tighter contact and higher adhesion between the ejector pin and the substrate, effectively preventing substrate cracking and damage. PEEK material exhibits excellent high and low temperature resistance, with a high glass transition temperature, maintaining good mechanical properties and chemical stability over a wide temperature range. In scenarios involving high-temperature coating processes or low-temperature operations, PEEK ejector pins can still operate stably without softening or becoming brittle due to temperature changes, ensuring reliable support and positioning of the substrate and enabling the equipment to adapt to diverse production environments and process requirements.

[0052] See Figures 1 to 3As shown, in one embodiment, the receiving unit 200 further includes an aluminum profile connector 240 connected to the lifting assembly 220; the substrate connecting plate 231 is connected to the substrate aluminum profile connector 240. Aluminum profiles are lightweight yet strong. Connecting various components via the aluminum profile connector 240 creates a stable frame structure for the entire receiving unit 200. During receiving and subsequent operations, this structure effectively distributes the load, whether bearing the weight of the substrate or dealing with external forces such as vibration and impact generated during equipment operation, ensuring the overall rigidity of the receiving unit 200. This prevents structural deformation from affecting the accuracy of receiving and the normal processing of the substrate, ensuring the stability and reliability of the entire workflow. The aluminum profile connector 240 can typically be connected to the lifting assembly 220 and the substrate connecting plate 231 using various reliable connection methods (such as bolt connections, slot connections, etc.), providing a tighter and more secure connection compared to some looser or less stable connection methods. This reduces the possibility of loosening or displacement between components during use, maintains the accuracy of the relative positions of each part, and plays an important role in ensuring the normal functioning of the receiving unit 200 and extending its service life.

[0053] See Figures 1 to 3 As shown, in one embodiment, the receiving unit 200 also includes a lifting stroke detection component 250. During material receiving, the ejector pin assembly 230 or the aluminum profile connector 240 needs to be accurately raised or lowered to a suitable height to ensure smooth material reception. The lifting stroke detection component 250 can monitor the lifting position of the ejector pin assembly 230 or the aluminum profile connector 240 in real time. Based on the feedback information, it precisely controls the upward or downward stroke, ensuring that the receiving platform and other structures are at the ideal height corresponding to the material's descent. This avoids the material missing the receiving platform due to an excessively high position, or the position being too low affecting the smooth connection of subsequent processes. If the lifting part of the receiving unit 200 lacks stroke limitation and detection, excessive lifting or lowering may occur during operation. For example, a motor-driven lifting structure may continue to operate due to control system malfunctions, causing the lifting component to exceed its normal range of motion, colliding with other components and causing mechanical deformation or damage, or causing excessive load on transmission components such as lead screws and chains, resulting in damage. The lifting stroke detection component 250 can detect the limit position in a timely manner and trigger the corresponding protection mechanism, such as stopping the motor, to prevent equipment damage caused by overtravel. The lifting stroke detection component 250 can be a lifting stroke switch.

[0054] See Figures 1 to 3As shown, the receiving unit 200 also includes a linear bearing guide assembly 260. During the lifting or translating movements of the receiving unit 200, the linear bearing guide assembly 260 provides precise linear motion trajectory guidance for the moving parts. For example, when the receiving platform needs to be lifted vertically to receive materials, the linear bearing moves linearly along the guide rail it mates with, ensuring that the receiving platform moves strictly in the predetermined vertical direction, avoiding tilting or offset, making the receiving action more precise and reliable, helping to accurately catch materials, and reducing problems such as receiving failure or material spillage caused by positional deviation. The linear bearing guide assembly 260 itself has high motion precision, and its mating clearance can be controlled within a very small range, enabling the moving parts to achieve a high level of repeatability in positioning during movement. This is crucial for the receiving unit 200, which requires repeated receiving operations and high positional accuracy, ensuring that the positional state is as consistent as possible each time it receives materials, providing a stable and accurate material position basis for subsequent processing, transfer, and other processes; it also increases the stability of movement and can bear distributed loads.

[0055] See Figures 1 to 4 As shown, in one embodiment, the support adjustment assembly 300 includes an adjustment base 310, a support column 320 connected to the substrate adjustment base 310, a locking nut 330 connected to the support column 320, and a connecting flange 340 connected to the substrate locking nut 330. The substrate connecting flange 340 is connected to the coating table 100. By adjusting the base 310 and the support column 320, the height of the entire support adjustment assembly 300 can be easily changed, that is, the height of the coating table 100 can be easily adjusted. This allows for flexible matching of various process parameter settings, ensuring a good coating spacing between the coating head and the substrate placed on the coating table 100, thereby achieving precise coating thickness control, improving coating quality and consistency, and ultimately improving coating accuracy. As the main load-bearing component, the support column is connected to the adjusting base 310. It effectively transfers the weight of the coating table 100 and various loads generated during operation to the ground or mounting foundation. Possessing a certain strength and rigidity, it provides stable and reliable support for the coating table 100, preventing instability such as shaking or displacement caused by equipment vibration or material placement during coating, thus ensuring the smoothness of the coating operation. After adjusting the height and position of the support column, tightening the locking nut 330 firmly fixes the support column to components such as the connecting flange 340, preventing loosening of components due to vibration or other factors during equipment operation. This maintains the stability of the entire support base adjusting assembly 300 structure, ensuring the coating table 100 remains in a stable supported state for a long time, extending the equipment's service life and reducing potential malfunctions caused by structural loosening.

[0056] See Figures 1 to 5 As shown, in one embodiment, the alignment cylinder assembly 400 includes a cylinder locking plate 410, a lifting cylinder 420 connected to the substrate cylinder locking plate 410, a forward cylinder 430 connected to the substrate lifting cylinder 420, and a flexible guide wheel 440 connected to the substrate forward cylinder 430. The flexible guide wheel 440 is used to abut against the side of the substrate. The lifting cylinder 420 and the forward cylinder 430 enable position adjustment of the substrate in different directions. The lifting cylinder 420 controls the vertical height of the substrate, ensuring it is at a suitable planar height position and avoiding impacts on subsequent processes due to height differences during placement. The forward cylinder 430 pushes the substrate horizontally, ensuring it reaches an accurate lateral position within the plane. Through precise control in these two directions, the substrate can be effectively aligned to a predetermined accurate position, providing a precise positioning basis for subsequent processes such as coating and processing, ensuring that each operation is performed in a standard position, and improving product quality consistency.

[0057] The flexible guide wheel 440 abuts against the side of the substrate, providing further guidance and assisting in alignment. Due to its flexible material, it generates sufficient force to adjust the substrate's position without causing scratches or damage. It also accommodates minor angular deviations that may occur during alignment, allowing the substrate to be aligned more smoothly and steadily to the correct position, thus enhancing the accuracy and stability of the entire alignment process.

[0058] In some embodiments, the guide wheel may be made of PEEK (polyether ether ketone) to prevent substrate displacement or deformation, thereby making the coating more uniform and improving coating accuracy.

[0059] See Figures 1 to 3 As shown, in one embodiment, the coating stage mechanism further includes a substrate detection component 600 disposed on the side of the coating stage 100. The substrate detection component 600 is used to detect the substrate. The substrate detection component 600 can monitor the area of ​​the coating stage 100 in real time to determine whether the substrate is in place. If the substrate is not correctly placed, the equipment control system can prevent the coating head from starting coating and other subsequent operations based on the information fed back by the detection component, avoiding coating when there is no substrate or the substrate is not in the correct position, preventing paint waste, and avoiding unnecessary damage to the equipment due to misoperation. In one embodiment, the substrate detection component 600 can be a photoelectric switch.

[0060] See Figures 1 to 3As shown, the coating table mechanism also includes a wiring component with wiring channels 700. During the operation of the coating table 100 and its related equipment, numerous wires, cables, signal lines, and other types of wiring are involved. If these lines are laid haphazardly, they are prone to tangling and becoming disorganized. The wiring channels 700 of the wiring component provide dedicated space for these lines, organizing them in an orderly manner according to certain rules. This makes the wiring layout of the entire coating table 100 area clear and easy to manage, maintain, and troubleshoot. By rationally planning the division of the wiring channels 700, such as setting up different channels for different types of lines like power lines and signal lines, the lines can be effectively distinguished, avoiding mutual interference between different functional lines. This reduces the risk of signal transmission errors or equipment failures caused by electromagnetic interference between lines, ensuring the normal and stable operation of all equipment. In daily use and the surrounding environment, the lines may be affected by various external factors, such as being squeezed by equipment parts, accidentally stepped on by workers, or scratched by sharp objects. The cable tray 700 can enclose the cable, providing physical protection, reducing the possibility of the cable being directly exposed to the outside and suffering damage, extending the service life of the cable, and reducing the risk of equipment failure due to cable damage.

[0061] In the aforementioned coating table mechanism, the ejector pin assembly 230 is locked to the aluminum profile connector 240, the aluminum profile connector 240 is locked to the lifting assembly 220, the lifting assembly 220 is locked to the frame, the linear bearing guide assembly 260 is locked to the frame, the servo motor assembly is locked to the frame, the support seat adjustment assembly 300 is mounted on the frame, the aligning cylinder assembly 400 is locked to the four sides of the coating table 100, the substrate detection assembly 600 is locked to the side of the coating table 100, the pre-coated material receiving box assembly 500 is locked to the aligning cylinder assembly 400 located on the long side of the coating table 100, and the wiring trough 700 can be locked to the frame.

[0062] Furthermore, one embodiment of this application also provides a coating apparatus, including a coating head and a coating table mechanism for the substrate as described above. The coating head is connected to the substrate frame and is located above the coating table 100. The coating head is used to apply coating material to the substrate located on the coating table 100. The frame is provided with a first linear module, a second linear module, and a lifting module. For example, the first linear module is connected to the second linear module, the second linear module is connected to the lifting module, and the coating head is connected to the lifting module. The first lifting module drives the coating head to move along a first direction, the second lifting module drives the coating head to move along a second direction, and the lifting module drives the coating head to move vertically.

[0063] When the coating device begins coating, the servo motor assembly and the lifting assembly 220 form a power lifting group, providing lifting power to drive the ejector pin assembly 230 upward, so as to load the substrate gripped by the robot onto the ejector pin assembly 230. After loading is completed, the power lifting group drives the ejector pin assembly 230, which passes through the coating table 100, to descend, so as to transfer the substrate onto the coating table 100. The height of the coating table 100 is adjusted by the support base adjustment assembly 300. The substrate is aligned and adjusted by the alignment cylinder assembly 400. Then, the substrate is adsorbed by the vacuum adsorption tank 110 on the coating table 100. The coating head starts to move and first coats the material onto the pre-coating receiving box to ensure uniform coating speed, and then performs the coating operation on the substrate. During the coating process, the coating head can move along any one of the first direction, the second direction, and the vertical direction to ensure the uniformity of the coating thickness and the coating quality.

[0064] The technical features of the above substrate embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0065] The above substrate embodiments are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A coating table mechanism, characterized in that, The coating table mechanism includes: frame; A coating table (100) is provided on the frame, and the coating table (100) is provided with an adsorption tank (110) and a through hole (120); A receiving unit (200) is disposed on the frame and includes a drive assembly (210), a lifting assembly (220), and a plurality of ejector pin assemblies (230) connected to the lifting assembly (220); the plurality of ejector pin assemblies (230) are arranged at intervals along a first direction, and the ejector pin assemblies (230) pass through the through hole (120); the drive assembly (210) is used to drive the lifting assembly (220) to move in a vertical direction, thereby causing the ejector pin assemblies (230) to rise or fall, so that the substrate is transferred to at least one of the ejector pin assemblies (230) and the coating table (100); A support adjustment assembly (300) is connected to the coating table (100) and is used to drive the coating table (100) to rise or fall along the vertical direction; Multiple alignment cylinder assemblies (400), at least two alignment cylinder assemblies (400) are respectively disposed on two sides of the coating table (100) along a first direction; at least two alignment cylinder assemblies (400) are respectively disposed on two sides of the coating table (100) along a second direction, the alignment cylinder assemblies (400) are used to abut against the side of the substrate; any two of the first direction, the second direction and the vertical direction intersect.

2. The coating table mechanism according to claim 1, characterized in that, The coating table mechanism also includes a pre-coating receiving box assembly (500) disposed on one side of the coating table (100), and the pre-coating receiving box assembly (500) is connected to the calibrating cylinder assembly (400).

3. The coating table mechanism according to claim 1, characterized in that, The ejector assembly (230) includes a connecting plate (231), a plurality of ejector supports (232), and a first ejector (233) connected to each of the ejector supports (232); the plurality of ejector supports (232) are spaced apart on the connecting plate (231) along a second direction.

4. The coating table mechanism according to claim 3, characterized in that, A flexible support (234) is connected to the side of the first ejector pin (233) away from the ejector pin support (232); And / or, the receiving unit (200) further includes an aluminum profile connector (240) connected to the lifting assembly (220); the connecting plate (231) is connected to the aluminum profile connector (240).

5. The coating table mechanism according to claim 1, characterized in that, The receiving unit (200) also includes a lifting stroke detection component (250); And / or, the receiving unit (200) further includes a linear bearing guide assembly (260).

6. The coating table mechanism according to claim 1, characterized in that, The support base adjustment assembly (300) includes an adjustment base (310), a support column (320) connected to the adjustment base (310), a locking nut (330) connected to the support column (320), and a connecting flange (340) connected to the locking nut (330). The connecting flange (340) is connected to the coating table (100).

7. The coating table mechanism according to claim 1, characterized in that, The aligning cylinder assembly (400) includes a cylinder locking plate (410), a lifting cylinder (420) connected to the cylinder locking plate (410), a forward cylinder (430) connected to the lifting cylinder (420), and a flexible guide wheel (440) connected to the forward cylinder (430). The flexible guide wheel (440) is used to abut against the side of the substrate.

8. The coating table mechanism according to claim 1, characterized in that, The coating stage mechanism also includes a substrate detection component (600) disposed on the side of the coating stage (100), the substrate detection component (600) being used to detect the substrate; And / or, the coating table mechanism further includes a wiring component, which has a wiring groove (700).

9. The coating table mechanism according to claim 1, characterized in that, The drive assembly (210) includes a servo motor and a coupling connected to the servo motor.

10. A coating apparatus, characterized in that, The device includes a coating head and a coating table mechanism as described in any one of claims 1 to 9, the coating head being connected to the frame and located above the coating table (100), the coating head being used to apply coating material to a substrate located on the coating table (100).

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