A coating device

Abstract

The application relates to the technical field of battery manufacturing, and provides a coating device which can improve the reliability of coating width monitoring. The coating device comprises a rack, a coating assembly and a light generating assembly. The coating assembly is arranged on the rack, and the coating assembly has a working area for arranging a substrate. The light generating assembly is configured to project a linear light spot at the edge of a coating area of the substrate in the working area. The extension direction of the linear light spot is parallel to the movement direction of the substrate in the working area.

Description

Technical Field

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

[0002] In the production process of battery electrodes, the coating unit uniformly coats the active material onto the surface of the metal foil. The width of the coating is one of the key dimensions that determines the battery's performance and safety. In related technologies, the coating unit typically monitors the coating width using visual inspection equipment.

[0003] However, the aforementioned visual inspection equipment has some defects in its application: First, when the coating device is first started, there is a long system delay from the start of coating until the measurement value of the dressing width is stably displayed on the screen of the visual inspection equipment; second, after changing the product model or adjusting the dressing width, the visual inspection equipment must be re-adjusted, and during this adjustment period, the measurement value displayed by the visual inspection equipment is inaccurate.

[0004] In both of these situations, operators cannot obtain accurate dressing width data in real time, making it impossible to detect and correct dressing width deviations in a timely manner. This can easily lead to substandard dressings flowing into subsequent processes, resulting not only in material waste but also potentially threatening the safety of the final product. Utility Model Content

[0005] To address the aforementioned technical problems, this application provides a coating apparatus that can improve the reliability of dressing width monitoring.

[0006] This application provides a coating apparatus, including a frame, a coating assembly, and a light generating assembly. The coating assembly is disposed on the frame and has a working area for a substrate to be disposed thereon. The light generating assembly is configured to project a linear light spot onto the edge of the coating area of ​​the substrate within the working area. The extension direction of the linear light spot is parallel to the movement direction of the substrate within the working area.

[0007] The coating apparatus provided in this application includes a frame and a coating assembly mounted on the frame. The coating assembly has a working area for placing a substrate for coating operations. The coating apparatus also includes a light-generating assembly. Before coating begins, the light-generating assembly projects linear light spots onto the edge of the coating area of ​​the substrate within the working area. The extension direction of the linear light spots is parallel to the movement direction of the substrate within the working area, allowing these linear light spots to provide clear and stable optical boundaries. Operators can use these linear light spots to determine whether the coating width is out of tolerance, enabling timely detection and correction of coating width deviations. This prevents defective electrodes from flowing into subsequent processes, thereby improving the reliability of coating width monitoring.

[0008] In some implementations, the coating assembly includes a coating head and a support located within the working area, with the support positioned opposite to the discharge port of the coating head, and at least a portion of the linear light spot being located between the coating head and the support.

[0009] In some implementations, the light generating assembly includes at least two light generating elements for generating linear light spots, which are movably mounted on the frame.

[0010] In some implementations, the coating apparatus includes a positioning element disposed in the working area, the positioning element having at least two parallel positioning portions, and the linear light spot being configured to at least partially overlap with the positioning portions.

[0011] In some implementations, the positioning element is provided with a positioning groove, which has opposite and parallel sidewalls that form a positioning part.

[0012] In some implementations, at least two positioning slots are provided at intervals along the arrangement direction of the linear light spot.

[0013] In some implementations, the coating assembly includes a support member, which is a rotating body structure positioning member having a first limiting part and a second limiting part spaced apart. Along the axial direction of the support member, a first end face of the support member abuts against the first limiting part, and a second end face of the support member abuts against the second limiting part.

[0014] In some implementations, the coating apparatus also includes a connecting assembly, through which the light-generating assembly is movably connected to the frame.

[0015] In some implementations, the connection assembly includes a first connector, a second connector, and a connection bracket. The first connector and the second connector are movably disposed on the connection bracket. The first connector is connected to the frame, and the second connector is connected to the light-generating assembly.

[0016] In some implementations, the coating apparatus also includes a protective cover for enclosing the light-generating components. Attached Figure Description

[0017] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1This is a schematic diagram of the coating apparatus provided in the embodiments of this application; Figure 2 This is a schematic diagram of the structure of the light generator and connecting assembly in the coating apparatus provided in the embodiments of this application; Figure 3 This is a schematic diagram of the positioning element in the coating apparatus provided in the embodiments of this application; Figure 4 This is a schematic diagram of the structure of the protective cover in the coating apparatus provided in the embodiments of this application; Figure 5 This is one of the diagrams showing the relationship between the linear light spot and the dressing position in the coating apparatus provided in the embodiments of this application; Figure 6 This is the second diagram showing the relationship between the linear light spot and the dressing position in the coating apparatus provided in the embodiments of this application; Figure 7 This is the third diagram showing the relationship between the linear light spot and the dressing position in the coating apparatus provided in the embodiments of this application; Figure 8 This is the fourth diagram showing the relationship between the linear light spot and the dressing position in the coating apparatus provided in the embodiments of this application; Figure 9 The fifth diagram shows the relationship between the linear light spot and the dressing position in the coating apparatus provided in the embodiments of this application.

[0020] Explanation of reference numerals in the attached figures: 1-Frame; 2-Coating assembly; 21-Coating head; 22-Support; 3-Substrate; 4-Light generating assembly; 41-Light generating element; 42-Linear light spot; 5-Positioning element; 51-Positioning groove; 511-Positioning part; 52-First limiting part; 53-Second limiting part; 6-Connecting assembly; 61-First connector; 62-Second connector; 63-Connecting bracket; 7-Protective cover; 8-Dressing. Detailed Implementation

[0021] To better understand the above-mentioned objectives, features, and advantages of this application, the solution of this application will be further described below. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of this application, but this application may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only some embodiments of this application, and not all embodiments.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0024] In the description of the embodiments of this application, technical terms such as "first," "second," and "third" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0025] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0026] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects are in an "or" relationship.

[0027] In the description of the embodiments of this application, the technical terms "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed, operated or used in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0028] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" 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. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0029] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the technical term "contact" should be interpreted broadly, and can be direct contact, contact through an intermediate medium layer, contact between two contacting parties with substantially no interaction force, or contact between two contacting parties with interaction force.

[0030] The following is a detailed description of this application.

[0031] In the production process of battery electrodes, the coating unit uniformly coats the active material onto the surface of the metal foil. The width of the coating is one of the key dimensions that determines the battery's performance and safety. In related technologies, the coating unit typically monitors the coating width using visual inspection equipment.

[0032] However, the aforementioned visual inspection equipment has some defects in its application: First, when the coating device is first started, there is a long system delay from the start of coating until the measurement value of the dressing width is stably displayed on the screen of the visual inspection equipment; second, after changing the product model or adjusting the dressing width, the visual inspection equipment must be re-adjusted, and during this adjustment period, the measurement value displayed by the visual inspection equipment is inaccurate.

[0033] In both of these situations, operators cannot obtain accurate dressing width data in real time, making it impossible to detect and correct dressing width deviations in a timely manner. This can easily lead to substandard dressings flowing into subsequent processes, resulting not only in material waste but also potentially threatening the safety of the final product.

[0034] To solve the above problems, refer to Figure 1 This application provides a coating apparatus, which includes a frame 1, a coating component 2, and a light generating component 4. The coating component 2 is disposed on the frame 1 and has a working area for a substrate 3 to be disposed. The light generating component 4 is configured to project a linear light spot 42 at the edge of the coating area 31 of the substrate 3 within the working area. The extension direction of the linear light spot 42 is parallel to the movement direction of the substrate 3 within the working area.

[0035] The frame 1 is the basic support structure and skeleton of the coating device. It is the installation platform and benchmark of the entire device, and all other functional components are directly or indirectly fixed on it.

[0036] The coating assembly 2 is a collection of components in the coating apparatus that directly performs the core function of coating active materials onto the surface of the substrate 3. For example, the coating assembly 2 may include a coating head 21 and a back roller, which may be located opposite the coating head 21 and form a coating gap with the coating head 21 to support the substrate 3 at the coating point.

[0037] It should be noted that the structure of the substrate 3 can be varied. For example, the substrate 3 can be a battery electrode, a metal foil, a plastic film, etc.

[0038] The coating assembly 2 has a working area for the substrate 3 to be set. Here, the working area refers to the three-dimensional space in which the coating action actually takes place, and the substrate 3 is coated with a coating in this area.

[0039] The light-generating component 4 is configured to project linear light spots 42 onto the edge of the coating area 3 of the substrate 3 within the working area. This means the light-generating component 4 can produce two or more thin, high-contrast, and parallel bright lines, which are projected onto the edge of the coating area 31 on the substrate 3. Here, the coating area of ​​the substrate 3 refers to the area where the dressing 8 is located. Thus, these bright lines can form an optical scale or optical boundary at the edge of the dressing 8 on the substrate 3, assisting the operator in determining whether the width of the dressing 8 is out of tolerance.

[0040] It should be explained that the edge of the coating area 31 has a certain width. That is, the edge can be an area extending a certain size on both sides of the coating area 31 along its width direction, with the boundary of the coating area 31 as the center. The specific width can be determined according to process requirements, detection accuracy, etc. Linear light spots projected into this area can all be considered to fall on the edge of the coating area 31, and their purpose is to detect whether the width of the dressing 8 exceeds the tolerance.

[0041] The essence of coating is the continuous application of the dressing 8 to the moving substrate 3. Therefore, the length direction of the dressing 8 is parallel to the movement direction of the substrate 3 within the working area. The extension direction of the linear spot 42 being parallel to the movement direction of the substrate 3 within the working area means that the length direction of the linear spot 42 is parallel to the transport direction of the substrate 3 within the working area during the coating process. Thus, during the transport of the substrate 3, the linear spot 42 can always be parallel to the length direction of the dressing 8, thereby providing an optical boundary for the dressing 8.

[0042] When determining whether the width of dressing 8 is out of tolerance, refer to Figure 5 If the boundary of dressing 8 just overlaps with the laser beam, then the width of dressing 8 meets the process requirements; refer to Figure 6, Figure 7 and Figure 8 If the boundary of dressing 8 extends beyond the inner boundary of linear spot 42, then the width of dressing 8 is too wide or has shifted. It is necessary to adjust the gap of coating head 21 or move coating head 21 laterally to control the width and position of dressing 8 to meet process requirements; refer to... Figure 9 If there is a gap between the boundary of the dressing 8 and the inner boundary of the linear spot 42, the width of the dressing 8 is too narrow or it is offset. Similarly, it is necessary to adjust the gap of the coating head 21 or move the coating head 21 laterally to control the width and position of the dressing 8 to meet the process requirements.

[0043] It should be noted that when determining whether the width of the dressing 8 exceeds the tolerance, it can be done visually by the operator; alternatively, it can be determined using visual inspection equipment. For example, the coating device may include a line scan camera and an alarm unit. The line scan camera monitors the relative position between the boundary of the dressing 8 and the preset linear light spot 42 in real time. If the boundary of the dressing 8 is detected to exceed the inner boundary of the linear light spot 42, or if there is a gap between the boundary of the dressing 8 and the linear light spot 42, it indicates that the width of the dressing 8 does not meet the process requirements, and the alarm unit is triggered to prompt the operator to intervene and check. The number of linear light spots 42 projected by the light generating component 4 in the coating area can be set according to production needs. For example, when only one strip of dressing 8 needs to be coated on the surface of substrate 3, the light generating component 4 can project two linear light spots 42 within the coating area. The two linear light spots 42 are located on opposite sides of the width of the dressing 8 to form an optical boundary. When two or more strips of dressing 8 need to be coated on the surface of substrate 3, the light generating component 4 can project multiple linear light spots 42 within the coating area. Two adjacent linear light spots 42 can form the optical boundary of a single strip of dressing 8. Moreover, having multiple linear light spots 42 can also adapt to the monitoring needs of dressings 8 with different widths. That is, based on the width of the processed dressing 8, two linear light spots 42 with a spacing that matches the width of the dressing 8 can be selected from multiple linear light spots 42 as the optical boundary.

[0044] In realizing the technical function of projecting linear light spot 42, the structural design of the light generating component 4 has many possibilities. For example, the light generating component 4 may include laser line generating and diffraction optical elements; or, the light generating component 4 may also include high-intensity point light source or surface light source such as halogen lamp or xenon lamp, and use these light sources to irradiate the baffle with a narrow slit to form linear light spot 42.

[0045] When the light generating component 4 projects linear light spots 42, these linear light spots 42 can be projected entirely onto the working area or partially onto the working area.

[0046] When the light-generating component 4 projects a linear light spot 42, the width of the linear light spot 42 can be made less than or equal to 5mm by adjusting the focal length, etc. This makes it easier for the operator to observe and judge the width of the dressing 8.

[0047] The coating apparatus provided in this application includes a frame 1 and a coating assembly 2 mounted on the frame 1. The coating assembly 2 has a working area for mounting a substrate 3 to perform coating operations on the substrate 3. The coating apparatus also includes a light generating assembly 4. Before the coating apparatus starts coating, the light generating assembly 4 can project linear light spots 42 onto the edge of the coating area 8 of the substrate 3 within the working area. The extension direction of the linear light spots 42 is parallel to the movement direction of the substrate 3 within the working area, so that these linear light spots 42 can provide clear and stable optical boundaries. The operator can use these linear light spots 42 to determine whether the width of the dressing 8 is out of tolerance, so that the problem of the dressing 8 being out of tolerance can be detected and corrected in time, thereby preventing unqualified electrodes from flowing into subsequent processes, thus improving the reliability of the dressing 8 width monitoring.

[0048] Compared to related technologies that use visual inspection equipment to monitor the width of the dressing 8, the coating apparatus provided in this application includes a light generating component 4. The light generating component 4 assists the operator in determining whether the width of the dressing 8 meets process requirements by projecting a linear light spot 42 onto the edge of the coating area of ​​the substrate 3 within the working area. Since the light beam is directly and physically projected onto the edge of the coating area of ​​the substrate 3, the linear light spot 42 can immediately form an optical boundary at the edge of the coating area of ​​the substrate 3 as soon as coating begins. There is no system initialization delay or data transmission delay, and monitoring can begin from the start of coating. Furthermore, when changing product models, it is only necessary to pre-set the projection position and spacing of the linear light spot 42 according to process requirements, without the need for readjustment and edge detection as required by visual inspection equipment.

[0049] It should be noted that in some embodiments, the coating apparatus may simultaneously include a light-generating component 4 and a vision inspection device. When the coating apparatus is first started and the vision inspection device experiences a system delay, the operator can use the linear light spot 42 generated by the light-generating component 4 to determine whether the width of the dressing 8 is out of tolerance. After the vision inspection device is operating normally, the linear light spot 42 projected by the light-generating component 4 onto the edge of the coating area on the substrate 3 can also provide a visual reference for the vision inspection device. In this way, the vision inspection device can monitor the relative position between the boundary of the dressing 8 and the preset linear light spot 42 in real time through image algorithms, thereby improving the monitoring accuracy of the width of the dressing 8.

[0050] Reference Figure 1In some embodiments of this application, the coating assembly 2 includes a coating head 21 and a support member 22, the support member 22 being disposed opposite to the discharge port of the coating head 21, and at least a portion of the linear light spot 42 being located between the coating head 21 and the support member 22.

[0051] The coating assembly 2 includes a coating head 21 and a support member 22. The coating head 21 discharges slurry through the discharge port, and the support member 22 is arranged opposite to the discharge port of the coating head 21 to support the substrate 3. The two work together to complete the coating action.

[0052] The fact that at least a portion of the linear light spots 42 can be located between the coating head 21 and the support member 22 means that these linear light spots 42 can be projected entirely between the coating head 21 and the support member 22, or can be projected partially between the coating head 21 and the support member 22.

[0053] Here, the area between the coating head 21 and the support member 22 is the starting area for coating the substrate 3. At least a portion of the linear light spot 42 is located between the coating head 21 and the support member 22, which can provide an optical boundary for the dressing 8 as soon as the slurry contacts the substrate 3, thus improving the timeliness of the width monitoring of the dressing 8.

[0054] Of course, in some embodiments, the linear light spot 42 may also be projected onto the downstream side of the coating head 21 and the support member 22 along the transport direction of the substrate 3.

[0055] Furthermore, the structural form of the support member 22 can also be varied, for example, referring to... Figure 1 The support member 22 can be a support roller; or the support member 22 can also be a support plate.

[0056] Reference Figure 1 and Figure 2 In some embodiments of this application, the light generating assembly 4 includes at least two light generating elements 41 for generating linear light spots 42, and the light generating elements 41 are movably disposed on the frame 1.

[0057] The light generating assembly 4 includes at least two light generating elements 41 for generating linear light spots 42, meaning that the light source of the light generating assembly 4 is not a single source, but is provided by two or more independent light generating elements 41, and each light generating element 41 can generate a linear light spot 42.

[0058] Here, the light generating assembly 4 includes at least two light generating elements 41, which are movably mounted on the frame 1. When the product model is changed or the required width of the coating 8 changes, the operator can adjust the spacing between the light generating elements 41 to make the spacing between the linear light spots 42 meet the new requirements without replacing the entire light generating assembly 4, thus improving the flexibility of the coating device.

[0059] Reference Figure 1 and Figure 3 In some embodiments of this application, the coating apparatus includes a positioning element 5 disposed in the working area. The positioning element 5 has at least two parallel positioning portions 511, and the linear light spot 42 is configured to at least partially overlap with the positioning portions 511.

[0060] Positioning element 5 is disposed in the working area. Positioning element 5 has at least two parallel positioning portions 511. Linear light spot 42 is configured to at least partially overlap with the positioning portion 511. This means that positioning element 5 is arranged in the working area and has two or more parallel physical structures designed on it. When adjusting the light generating component 4, the linear light spot 42 projected by the light generating component 4 can overlap completely or partially with the corresponding positioning portion 511, so that the positioning portion 511 serves as the adjustment reference for the linear light spot 42.

[0061] Here, the coating apparatus includes a positioning member 5 disposed in the working area, the positioning member 5 having at least two parallel positioning portions 511. When adjusting the position of the linear light spot 42, the positioning portions 511 of the positioning member 5 can provide a reference for adjusting the linear light spot 42, thereby improving the adjustment efficiency and accuracy of the light generating assembly 4.

[0062] It should be noted that, in order to avoid the positioning component 5 from affecting the operation of the coating component 2, the positioning component 5 can be designed to be detachable or foldable, so that the positioning component 5 can leave the working area after the light generating component 4 has been adjusted.

[0063] Reference Figure 1 and Figure 3 In some embodiments of this application, the positioning member 5 is provided with a positioning groove 51, the positioning groove 51 having sidewalls that are arranged opposite to each other and parallel to each other, and the sidewalls forming a positioning part 511.

[0064] The positioning component 5 is provided with a positioning groove 51, which has relatively parallel sidewalls forming a positioning part 511. This means that the positioning component 5 has a groove-shaped structure (positioning groove 51) machined on it. This groove-shaped structure has mutually parallel inner sidewalls, which provide a reference for the adjustment of the linear light spot 42.

[0065] Here, the positioning component 5 is provided with a positioning groove 51, and the sidewall of the positioning groove 51 forms a positioning part 511. Thus, when adjusting the light generating component 4, the linear light spot 42 can be projected into the positioning groove 51 first, and then the linear light spot 42 can be adjusted to overlap with the sidewall of the positioning groove 51, further improving the adjustment efficiency of the light generating component 4. In addition, the positioning groove 51 has a simple structure and can achieve high machining accuracy.

[0066] Of course, in some embodiments, the positioning part 511 can also be in other structural forms. For example, the positioning part 511 can be a raised rib or a scribing line.

[0067] Reference Figure 1 and Figure 3 In some embodiments of this application, at least two positioning slots 51 are provided at intervals along the arrangement direction of the linear light spot 42.

[0068] Here, the arrangement direction of the linear light spots 42 is also the width direction of the dressing 8 on the substrate 3, and two or more positioning grooves 51 can be set along the arrangement direction of the linear light spots 42. In this way, the positioning member 5 can provide a reference for the adjustment of multiple sets of linear light spots 42 at the same time, further improving the adjustment efficiency of the light generating component 4.

[0069] Reference Figure 1 In some embodiments of this application, the coating component 2 includes a support member 22, which is a rotating body structure. The positioning member 5 has a first limiting part 52 and a second limiting part 53 spaced apart. Along the axial direction of the support member 22, the first end face of the support member 22 abuts against the first limiting part 52, and the second end face of the support member 22 abuts against the second limiting part 53.

[0070] Before the coating device begins coating, the substrate 3 needs to be positioned exactly in the center of the support roller using a guide roller, that is, referring to... Figure 1 Along the axial direction of the support roller, the distance from the left edge of the substrate 3 to the left end face (first end face) of the support roller is equal to the distance from the right edge of the substrate 3 to the right end face (second end face) of the support roller. Thus, the positioning member 5, through the first limiting part 52 and the second limiting part 53, abuts against the end face of the support roller, allowing the positioning part 511 of the positioning member 5 to be quickly aligned with the substrate 3 with the aid of the support roller, thereby improving the installation efficiency and accuracy of the positioning member 5.

[0071] Reference Figure 1 and Figure 2 In some embodiments of this application, the coating apparatus further includes a connecting component 6, through which the light generating component 4 is movably connected to the frame 1.

[0072] Here, the light generating component 4 is movably connected to the frame 1 via the connecting component 6. When the product model is changed or the required width of the coating 8 changes, the operator can adjust the position and angle of the light generating component 4 on the frame 1 via the connecting component 6, thereby adjusting the projection position of the linear light spot 42 so that the spacing between the linear light spots 42 meets the new requirements, improving the flexibility of the coating device.

[0073] Of course, in some embodiments, the light generating component 4 can also be fixedly connected to the frame 1, that is, the position of the light generating component 4 on the frame 1 cannot be changed.

[0074] Reference Figure 1 and Figure 2 In some embodiments of this application, the connecting component 6 includes a first connector 61, a second connector 62, and a connecting bracket 63. The first connector 61 and the second connector 62 are movably disposed on the connecting bracket 63. The first connector 61 is connected to the frame 1, and the second connector 62 is connected to the light generating component 4.

[0075] Here, the first connector 61 and the second connector 62 are movably mounted on the connecting bracket 63, meaning that both the first connector 61 and the second connector 62 can move relative to the connecting bracket 63. This combination of two movable connections increases the degree of freedom in adjusting the light-generating component 4, further enhancing the flexibility of the coating apparatus.

[0076] There are various possibilities for the connection between the first connector 61 and the second connector 62 and the connecting bracket 63. For example, refer to Figure 1 The first connector 61 and the second connector 62 can be movably connected to the connecting bracket 63 via a ball joint; or, the first connector 61 and the second connector 62 can also be movably connected to the connecting bracket 63 via a pivot.

[0077] Reference Figure 1 and Figure 4 In some embodiments of this application, the coating apparatus further includes a protective cover 7, which is used to cover the light generating component 4.

[0078] Here, the coating device also includes a protective cover 7. In this way, after the light generating component 4 is debugged, the protective cover 7 can be used to cover the light generating component 4 to prevent the operator from accidentally touching the light generating component 4, thereby affecting the projection position of the linear light spot 42.

[0079] It should be noted that, in order to prevent interference with the projection of the linear light spot 42, the protective cover 7 can be made of transparent material; or, the protective cover 7 can also have an opening for light to pass through; or, the protective cover 7 can be designed to be detachable so that it can be removed when the light generating component 4 is working.

[0080] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments described herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A coating apparatus, characterized in that, include: Rack (1); A coating assembly (2) is disposed on the frame (1) and has a working area for a substrate (3) to be disposed thereon; A light-generating component (4) is configured to project a linear light spot (42) at the edge of the coating area of ​​the substrate (3) within the working area, the extension direction of the linear light spot (42) being parallel to the movement direction of the substrate (3) within the working area.

2. The coating apparatus according to claim 1, characterized in that, The coating assembly (2) includes a coating head (21) and a support (22) located within the working area. The support (22) is disposed opposite to the discharge port of the coating head (21), and at least a portion of the linear spot (42) can be located between the coating head (21) and the support (22).

3. The coating apparatus according to claim 1, characterized in that, The light generating assembly (4) includes at least two light generating elements (41) for generating the linear light spot (42), and the light generating elements (41) are movably disposed on the frame (1).

4. The coating apparatus according to claim 3, characterized in that, The coating apparatus includes a positioning element (5) disposed in the working area. The positioning element (5) has at least two parallel positioning portions (511), and the linear light spot (42) is configured to at least partially overlap with the positioning portions (511).

5. The coating apparatus according to claim 4, characterized in that, The positioning member (5) is provided with a positioning groove (51), the positioning groove (51) has side walls that are arranged opposite to each other and parallel to each other, and the side walls form the positioning part (511).

6. The coating apparatus according to claim 5, characterized in that, Along the arrangement direction of the linear light spot (42), at least two positioning grooves (51) are provided at intervals.

7. The coating apparatus according to claim 4, characterized in that, The coating assembly (2) includes a support member (22), which is a rotating body structure. The positioning member (5) has a first limiting part (52) and a second limiting part (53) spaced apart. Along the axial direction of the support member (22), the first end face of the support member (22) abuts against the first limiting part (52), and the second end face of the support member (22) abuts against the second limiting part (53).

8. The coating apparatus according to any one of claims 1-7, characterized in that, The coating apparatus further includes a connecting component (6), through which the light generating component (4) is movably connected to the frame (1).

9. The coating apparatus according to claim 8, characterized in that, The connection component (6) includes a first connector (61), a second connector (62), and a connection bracket (63). The first connector (61) and the second connector (62) are movably disposed on the connection bracket (63). The first connector (61) is connected to the frame (1), and the second connector (62) is connected to the light generating component (4).

10. The coating apparatus according to any one of claims 1-7, characterized in that, The coating apparatus further includes a protective cover (7) for covering the light generating component (4).

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