Marking coating system and production system for parts to be coated

Abstract

This application discloses a marking coating system and a production system for parts to be coated. The marking coating system of this application is used to coat photosensitive paint onto the marking positions of parts to be coated, and includes a spraying device, an image detection component, and a photocuring device. The spraying device sprays photosensitive paint onto the marking positions of the parts to be coated to form a photosensitive paint film. The image detection component is disposed on the discharge side of the spraying device and is used to detect the size of the photosensitive paint film sprayed onto the marking positions. The photocuring device is located on the discharge side of the spraying device and is spaced apart from the spraying device. The image detection component is located between the spraying device and the photocuring device, and the photocuring device emits light to cure the photosensitive paint film onto its surface. Coating the marking positions with an electrolyte-resistant photosensitive paint film reduces the wettability of the electrolyte liquid on the solid surface of the QR code coating, making it less prone to spreading and adhesion of the electrolyte, thereby protecting the clarity of the QR code coating area.

Description

Technical Field

[0001] This application relates to the field of coating production technology, specifically to a marking coating system and a coating production system. Background Technology

[0002] Currently, the QR codes on the top cover of individual battery cells are white. During battery production, electrolyte droplets splash onto the QR codes and crystallize, making them the same color as the white QR codes. This causes difficulties for barcode scanners in recognizing the QR codes, affecting production speed. Rework can only be done by affixing a silver label, and battery cells that cannot be reworked must be scrapped, resulting in a serious waste of human and material resources. Utility Model Content

[0003] In view of the above problems, this application provides a marking coating system that forms a photosensitive coating film by coating a photosensitive material at the marking location. The photosensitive coating film is resistant to electrolyte corrosion to protect the marking and reduce the possibility of battery cell failure.

[0004] In a first aspect, this application provides a marking coating system for applying photosensitive paint to the marking location of a part to be coated, comprising:

[0005] A spraying device is used to spray photosensitive paint onto the marked positions of the workpiece to form a photosensitive paint film;

[0006] An image detection component is installed on the discharge side of the spraying device. The image detection component is used to detect the size of the photosensitive coating film sprayed to the marked position.

[0007] The photocuring device is located on the discharge side of the spraying device and is spaced apart from the spraying device. The image detection component is located between the spraying device and the photocuring device. The photocuring device is used to emit light to cure the photosensitive coating film onto the surface of the photosensitive coating film.

[0008] The component to be coated can be a battery cell. By applying a photosensitive coating film resistant to electrolyte corrosion to the marking location, a protective film is formed on the surface of the marking. This protective film reduces the surface energy of the marking surface, thereby reducing the wettability of the electrolyte on the solid surface of the marking coating, making it less likely for the electrolyte to spread and adhere, thus protecting the clarity of the marking coating area. Moreover, even if a small amount of electrolyte adheres to the photosensitive coating film, it can be wiped off directly with alcohol without leaving any residue, without directly affecting the integrity and clarity of the marking, thus ensuring the scanning effect and reducing the possibility of battery cell scrapping. At the same time, automatic coating and curing are achieved using a spraying device and a photocuring device, and the size of the photosensitive coating film is detected by an image detection component to ensure the coating effect. Compared with manual coating methods, this method can improve coating efficiency and coating quality.

[0009] In some embodiments, the marking coating system further includes a buffer component located on one side of the image detection component along the first direction. The buffer component is used to place unqualified parts to be coated, and the spacing direction of the spraying device and the photocuring device intersects with the first direction.

[0010] When the image detection component detects that the size of the photosensitive coating film is not up to standard, the defective product can be placed on the buffer component by manual means or by using a robotic arm for automatic clamping, so that the defective product can be removed for subsequent centralized processing.

[0011] In some embodiments, the marking coating system further includes a defective product transfer component for placing defective products to be coated onto a buffer component.

[0012] When the image detection component detects that the size of the photosensitive coating film is not up to standard, the defective product can be automatically transferred to the buffer component by the defective product transfer component, thereby saving manpower and improving production efficiency.

[0013] In some embodiments, the marking coating system further includes a conveying device for sequentially conveying the workpiece to be coated to a spraying device, an image detection component, and a photocuring device.

[0014] By integrating the three core processes of coating, testing, and curing into a fully automated production line, the intermediate turnover links of traditional segmented operations are eliminated, the time required for individual material transfer is reduced, and a one-stop closed-loop production is achieved from the input of the part to be coated to the output of qualified products, which is conducive to improving production efficiency.

[0015] In some embodiments, the marking coating system further includes a positioning fixture disposed on a conveying device. The positioning fixture is used to position the workpiece to be coated along a first direction and a second direction. The conveying device is used to sequentially convey the positioning fixture to a spraying device, an image detection component, and a photocuring device. The second direction is the same as the conveying direction of the conveying device, the first direction and the second direction are perpendicular, and the plane containing the first direction and the second direction intersects the height direction of the conveying device.

[0016] The positioning fixture positions the battery cells so that they can be coated, inspected, and cured at preset locations. This reduces the impact of large offsets on coating, inspection, and curing, and facilitates continuous and stable battery production.

[0017] In some embodiments, the marking coating system further includes a feed transfer component located on the feed side of the conveying device, which is used to place the workpiece to be coated onto a positioning fixture.

[0018] Battery production requires multiple steps. By setting up a material transfer component, it can connect with upstream equipment to transfer the battery cells processed by the upstream equipment to the positioning fixture for processes such as coating, testing and curing. Compared with manual transfer, this saves manpower and improves production efficiency.

[0019] In some embodiments, the feed transfer component includes a movable component and a clamping component. The movable component has a movable end, and the movable end is provided with a clamping component. The clamping component is used to clamp the workpiece to be coated, and the movable component is used to place the workpiece to be coated, which is clamped by the clamping component, into a positioning fixture.

[0020] Therefore, by driving the clamping component to move through the movable component, it is possible to connect with upstream equipment to transfer the battery cells processed by the upstream equipment to the positioning fixture for coating, testing and curing processes. Compared with manual transfer, this saves manpower and improves production efficiency.

[0021] In some embodiments, the movable component includes a robotic arm, the movable end of which is connected to a gripping component.

[0022] By using robotic arms to perform three-dimensional spatial path planning, it can overcome obstacles or complex workstation layouts, adapt to non-linear production processes, and is more conducive to connecting with upstream equipment to achieve continuous production.

[0023] In some embodiments, the spraying apparatus includes a paint spraying element, a flow path, and a regulating valve. The paint spraying element is in communication with the flow path, and the flow path is provided with a regulating valve for regulating the flow rate of the flow path. The flow path is used to supply photosensitive paint to the paint spraying element, and the paint spraying element is used to spray photosensitive paint onto the marked surface.

[0024] Therefore, paint can be supplied to the paint spraying parts through the pipeline to achieve spraying. The flow path is equipped with a regulating valve, which can prevent the photosensitive paint from accumulating too thickly on the surface of the mark during spraying by adjusting the flow rate, so as to better control the coating thickness during the spraying process.

[0025] In some embodiments, the paint spraying component includes a piezoelectric spray valve.

[0026] The piezoelectric injection valve boasts a high response speed and precise control capabilities, enabling accurate spraying of minute amounts of coating. It can precisely control the amount of coating sprayed each time. When coating battery cell top cover markings, it can accurately spray the appropriate amount of photosensitive coating onto the marking location, reducing the problems of excessive coating causing scanning difficulties or insufficient coating failing to provide effective protection, thus greatly improving the quality and accuracy of coating.

[0027] Secondly, this application provides a battery production system, including the marking coating system of the first aspect, wherein the part to be coated is a battery box or a battery cell.

[0028] Since the battery production system includes all the technical features of the marking and coating system, and has the same effect as described above, it will not be repeated here.

[0029] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, specific embodiments of this application are given below. Attached Figure Description

[0030] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiments below. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0031] Figure 1 This is an isometric view of a marking coating system according to an embodiment of this application, used to coat a workpiece.

[0032] Figure 2 This is a partial structural diagram of the connection between a moving part and a clamping part in a marking coating system according to an embodiment of this application;

[0033] Figure 3 This is a partial side view of a spraying device spraying a workpiece to be coated in a marking coating system according to an embodiment of this application.

[0034] The reference numerals in the detailed embodiments are as follows:

[0035] 100. Marking coating system;

[0036] 10. Spraying device; 11. Paint spraying components; 12. Flow path; 13. Control valve;

[0037] 20. Image detection component;

[0038] 30. Photopolymerization device;

[0039] 40. Cache component;

[0040] 50. Conveying device;

[0041] 60. Positioning fixture; 61. Positioning groove;

[0042] 70. Feed transfer component; 71. Moving component; 72. Clamping component;

[0043] 80. Transfer of defective parts;

[0044] 200. Parts to be coated;

[0045] X, the first direction; Y, the second direction. Detailed Implementation

[0046] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0047] 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.

[0048] In the description of the embodiments of this application, technical terms such as "first" and "second" 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.

[0049] 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.

[0050] 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 have an "or" relationship.

[0051] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0052] In the description of the embodiments of this application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "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, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0053] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the 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. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0054] Currently, the QR code on the top cover of a battery cell is white. During battery production, electrolyte droplets splash onto the QR code and crystallize, making the color match the white QR code. This makes it difficult for barcode scanners to recognize the QR code, affecting production speed. Rework can only be done by affixing a silver label, and battery cells that cannot be reworked must be scrapped, resulting in a serious waste of human and material resources.

[0055] In view of this, this application provides a label coating system. By coating the label location with a photosensitive coating film resistant to electrolyte corrosion, a protective film is formed on the label surface. This protective film reduces the surface energy of the label surface, thereby reducing the wettability of the electrolyte on the solid surface of the label coating, making it less likely for the electrolyte to spread and adhere, thus protecting the clarity of the label coating area. Moreover, even if a small amount of electrolyte adheres to the photosensitive coating film, it can be directly wiped off with alcohol without leaving any residue, without directly affecting the integrity and clarity of the label, thus ensuring the scanning effect and reducing the possibility of battery cell failure. At the same time, automatic coating and curing are achieved using a spraying device and a photocuring device, and the size of the photosensitive coating film is detected by an image detection component to ensure the coating effect. Compared with manual coating methods, this system can improve coating efficiency and coating quality.

[0056] For ease of explanation, please refer to the following examples. Figures 1-3 The following description will be based on an example of a marking coating system 100 according to some embodiments of this application.

[0057] A marking coating system 100 is used to apply photosensitive paint to the marking positions of a workpiece 200 to be coated. The marking coating system 100 includes a spraying device 10, an image detection unit 20, and a photocuring device 30. The spraying device 10 sprays photosensitive paint onto the marking positions of the workpiece 200 to form a photosensitive paint film. The image detection unit 20 is disposed on the discharge side of the spraying device 10 and is used to detect the size of the photosensitive paint film sprayed onto the marking positions. The photocuring device 30 is located on the discharge side of the spraying device 10 and is spaced apart from the spraying device 10. The image detection unit 20 is located between the spraying device 10 and the photocuring device 30, and the photocuring device 30 emits light to the surface of the photosensitive paint film to cure the photosensitive paint film.

[0058] The markings on the part to be coated 200 can be QR codes or barcodes, etc.

[0059] The part to be coated 200 can be, but is not limited to, a battery cell or a casing.

[0060] Image detection component 20 includes, but is not limited to, CCD camera, high-precision area array camera or laser displacement sensor.

[0061] The dimensions of a photosensitive coating film include one or more of the following: length, width, or thickness.

[0062] The photocuring device 30 has a light source, and the light emitted by the light source can be, but is not limited to, ultraviolet light, blue light, or green light, which can be determined according to the photosensitive coating.

[0063] Photosensitive coatings include, but are not limited to, any one of the following: visible light transparent curing coatings, silicone-based ultraviolet photosensitive coatings, acrylic photosensitive coatings, or silicone-modified acrylic coatings.

[0064] As an example, the thickness of the photosensitive coating film ranges from 30 to 100 micrometers.

[0065] The part to be coated 200 can be a single battery cell. By coating the marking location with a photosensitive coating film resistant to electrolyte corrosion, a protective film is formed on the surface of the marking. This protective film reduces the surface energy of the QR code surface, thereby reducing the wettability of the electrolyte liquid on the solid surface of the QR code coating, making it difficult for the electrolyte to spread and adhere, thus protecting the clarity of the QR code coating area. Moreover, even if a small amount of electrolyte adheres to the photosensitive coating film, it can be wiped off directly with alcohol without leaving any residue, without directly affecting the integrity and clarity of the QR code, thus ensuring the scanning effect and reducing the possibility of battery cell scrapping. At the same time, automatic coating and curing are achieved using the spraying device 10 and the photocuring device 30, and the size of the photosensitive coating film is detected by the image detection component 20 to ensure the coating effect. Compared with manual coating, this method can improve coating efficiency and coating quality.

[0066] In some embodiments, please refer to Figure 1 The marking coating system 100 also includes a buffer component 40, which is located on one side of the image detection component 20 along the first direction X. The buffer component 40 is used to place unqualified parts to be coated 200. The spacing direction of the spraying device 10 and the photocuring device 30 intersects with the first direction X.

[0067] The buffer component 40 can be, but is not limited to, a buffer conveyor line, a tray, or a buffer rack.

[0068] When the image detection component 20 detects that the size of the photosensitive coating film is unqualified, the unqualified product can be placed on the buffer component 40 by manual means or by using a robotic arm for automatic clamping, so that the unqualified product can be removed for subsequent centralized processing.

[0069] In some embodiments, please refer to Figure 1 The marking coating system 100 also includes a defective product transfer component 80, which is used to place the defective product to be coated 200 onto the buffer component 40.

[0070] When the image detection component 20 detects that the size of the photosensitive coating film is not up to standard, the defective product can be automatically transferred to the buffer component 40 by the defective product transfer component 80, so as to save manpower and improve production efficiency.

[0071] In some embodiments, please refer to Figure 1 The marking coating system 100 also includes a conveying device 50, which is used to sequentially convey the workpiece 200 to be coated to the spraying device 10, the image detection component 20 and the photocuring device 30.

[0072] The conveying device 50 can be, but is not limited to, a roller conveyor, a chain conveyor, or a belt conveyor.

[0073] As an example, the conveying device 50 is provided with limiting bars on both sides along its own width direction (second direction Y) to limit the position of the workpiece 200 to be coated along the width direction of the conveying device 50.

[0074] By integrating the three core processes of coating, testing, and curing into a fully automated production line, the intermediate turnover links of traditional segmented operations are eliminated, the time required for individual material transfer is reduced, and a one-stop closed-loop production is achieved from the input of 200 parts to be coated to the output of qualified products, which is conducive to improving production efficiency.

[0075] In some embodiments, please refer to Figure 1The marking coating system 100 also includes a positioning fixture 60, which is disposed on the conveying device 50. The positioning fixture 60 is used to position the workpiece 200 to be coated along the first direction X and the second direction Y. The conveying device 50 is used to sequentially convey the workpiece 200 to the spraying device 10, the image detection component 20 and the photocuring device 30 through the positioning fixture 60. The second direction Y is the same as the conveying direction of the conveying device 50. The first direction X and the second direction Y are perpendicular. The plane where the first direction X and the second direction Y are located intersects the height direction of the conveying device 50.

[0076] As an example, taking a roller conveyor as the conveying device 50, the positioning clamp 60 is set on the roller of the roller conveyor, and the positioning clamp 60 is guided by the two side beams of the roller conveyor (the two side beams or guide bars of the roller conveyor along its own width direction are used for guidance and positioning). In other examples, the conveying device 50 is a chain plate conveyor, and the positioning clamp 60 is set on the chain plate of the conveying device 50, specifically by bolts.

[0077] As an example, the upper surface of the positioning fixture 60 is provided with a positioning groove 61. The workpiece 200 to be coated is positioned through the positioning groove 61 to limit its position along the first direction X and the second direction Y. In other examples, positioning blocks can also be provided on the upper surface of the positioning fixture 60 for positioning. Specifically, there are multiple positioning blocks. The positioning fixture 60 is provided with two first positioning blocks spaced apart along the first direction X, and the positioning fixture 60 is also provided with two second positioning blocks spaced apart along the second direction Y. The two first positioning blocks abut against the two ends of the battery cell along the first direction X, and the two second positioning blocks abut against the two ends of the battery cell along the second direction Y, so as to achieve positioning of the battery cell in two different directions. At least one first positioning block and at least one second positioning block can be driven by a driving component.

[0078] The positioning fixture 60 positions the battery cells, enabling them to be coated, inspected, and cured at preset positions. This reduces the impact of large offsets on coating, inspection, and curing, and facilitates continuous and stable battery production.

[0079] In some embodiments, please refer to Figure 1 The marking coating system 100 also includes a feed transfer component 70, which is disposed on the feed side of the conveying device 50 and is used to place the workpiece 200 to be coated onto the positioning fixture 60.

[0080] The feeding and transfer component 70 can be a conveyor line, a multi-degree-of-freedom robot, or an XYZ three-axis linear module, etc.

[0081] Battery production requires multiple steps. By setting up a material transfer component 70, it can connect with upstream equipment to transfer the battery cells processed by the upstream equipment to the positioning fixture 60 for coating, testing and curing processes. Compared with manual transfer, this saves manpower and improves production efficiency.

[0082] In some embodiments, please refer to Figure 1 and Figure 2 The feed transfer component 70 includes a movable component 71 and a clamping component 72. The movable component 71 has a movable end, and the movable end is provided with the clamping component 72. The clamping component 72 clamps the workpiece 200 to be coated. The movable component 71 is used to place the workpiece 200 to be coated, which is clamped by the clamping component 72, into the positioning fixture 60.

[0083] The moving part 71 can be a multi-degree-of-freedom manipulator or an XYZ three-axis linear module, etc.

[0084] The clamping component 72 can be a pneumatic gripper or a vacuum suction cup, etc.

[0085] Therefore, by driving the clamping component 72 to move through the movable component 71, it is possible to connect with the upstream equipment to transfer the battery cells processed by the upstream equipment to the positioning fixture 60 for coating, testing and curing processes. Compared with manual transfer, this saves manpower and improves production efficiency.

[0086] In some embodiments, the movable component 71 includes a robotic arm, the movable end of which is connected to a clamping component 72.

[0087] The robotic arm of a robotic hand can have 2-7 degrees of freedom.

[0088] By using robotic arms to perform three-dimensional spatial path planning, it can overcome obstacles or complex workstation layouts, adapt to non-linear production processes, and is more conducive to connecting with upstream equipment to achieve continuous production.

[0089] In some embodiments, please refer to Figure 3 The spraying device 10 includes a paint spraying component 11, a flow path 12, and a regulating valve 13. The paint spraying component 11 is connected to the flow path 12. The flow path 12 is equipped with a regulating valve 13, which is used to regulate the flow rate of the flow path 12. The flow path 12 is used to supply photosensitive paint to the paint spraying component 11, and the paint spraying component 11 is used to spray photosensitive paint onto the surface of the marking.

[0090] As an example, the paint spraying component 11 includes, but is not limited to, any one of a nozzle, a piezoelectric spray valve, a micromechanical valve, or an electrostatic nozzle.

[0091] Therefore, paint can be supplied to the paint spraying component 11 through the pipeline to achieve spraying. The flow path 12 is equipped with a regulating valve 13. By adjusting the flow rate, the photosensitive paint can be prevented from accumulating too thickly on the surface of the mark during spraying, so as to better control the coating thickness during the spraying process.

[0092] In some embodiments, the paint spraying component 11 includes a piezoelectric spraying valve.

[0093] The piezoelectric injection valve boasts a high response speed and precise control capabilities, enabling accurate spraying of minute amounts of coating. It can precisely control the amount of coating sprayed each time. When coating battery cell top cover markings, it can accurately spray the appropriate amount of photosensitive coating onto the marking location, reducing the problems of excessive coating causing scanning difficulties or insufficient coating failing to provide effective protection, thus greatly improving the quality and accuracy of coating.

[0094] For ease of explanation, the following embodiments use a battery production system from some embodiments of this application as an example.

[0095] The battery production system includes the marking coating system 100 of the above embodiment, and the part to be coated 200 is a battery cell or a battery box.

[0096] A battery housing is a component used to house individual battery cells. The battery housing typically contains at least one battery cell assembly, which in turn contains multiple individual battery cells.

[0097] Since the battery production system includes all the technical features of the marking coating system 100 of the above embodiments, the effect is the same as described above, and will not be repeated here.

[0098] In one specific alternative embodiment of the marking coating system 100, please refer to Figures 1-3The marking coating system 100 is used to coat photosensitive coating onto the marking positions of battery cells. The marking coating system 100 includes a spraying device 10, an image detection unit 20, a photocuring unit 30, a buffer unit 40, a defective product transfer unit 80, a conveying device 50, a positioning fixture 60, and a feed transfer unit 70. The spraying device 10 sprays photosensitive coating onto the marking positions of the battery cells to form a photosensitive coating film. The image detection unit 20 is located on the discharge side of the spraying device 10 and is used to detect the size of the photosensitive coating film sprayed onto the marking positions. The photocuring unit 30 is located on the discharge side of the spraying device 10 and is spaced apart from the spraying device 10. The image detection unit 20 is located between the spraying device 10 and the photocuring unit 30, and the photocuring unit 30 emits ultraviolet light to the surface of the photosensitive coating film to cure the photosensitive coating film. A buffer component 40 is located on one side of the image detection component 20 along the first direction X. The buffer component 40 is used to place defective battery cells. The spacing direction of the spraying device 10 and the photocuring device 30 intersects with the first direction X. A conveying device 50 is used to sequentially convey battery cells to the spraying device 10, the image detection component 20, and the photocuring device 30. A positioning fixture 60 is disposed on the conveying device 50. The positioning fixture 60 is used to position battery cells along the first direction X and the second direction Y. The conveying device 50 is used to sequentially convey battery cells to the spraying device 10, the image detection component 20, and the photocuring device 30 through the positioning fixture 60. The second direction Y is the same as the conveying direction of the conveying device 50. The first direction X and the second direction Y are perpendicular. The plane containing the first direction X and the second direction Y intersects with the height direction of the conveying device 50. A feeding transfer component 70 is disposed on the feeding side of the conveying device 50. The feeding transfer component 70 is used to place battery cells in the positioning fixture 60. The feeding and transfer component 70 includes a movable component 71 and a clamping component 72. The movable component 71 has a movable end, and the movable end is equipped with the clamping component 72. The clamping component 72 is used to clamp the battery cell, and the movable component 71 is used to place the battery cell clamped by the clamping component 72 into the positioning fixture 60. The movable component 71 is a multi-degree-of-freedom manipulator. The spraying device 10 includes a paint spraying component 11, a flow path 12, and a regulating valve 13. The paint spraying component 11 is connected to the flow path 12, and the flow path 12 is equipped with the regulating valve 13. The regulating valve 13 is used to regulate the flow rate of the flow path 12, and the flow path 12 is used to supply photosensitive paint to the paint spraying component 11. The paint spraying component 11 is used to spray photosensitive paint onto the marked surface. The paint spraying component 11 is a piezoelectric spray valve.

[0099] Working process: The feeding and transfer unit 70 clamps the battery cells produced upstream and places them in the positioning fixture 60. The conveying device 50 transports the positioning fixture 60 containing the battery cells to the spraying device 10. The spraying device 10 sprays photosensitive coating onto the markings of the battery cells to form a photosensitive coating film. The conveying device 50 then transports the sprayed battery cells to the image detection unit 20, which detects the dimensions of the photosensitive coating film. If the dimensions of the photosensitive coating film are unqualified, the unqualified product transfer unit 80 transfers the unqualified battery cells to the buffer unit 40 for further processing. If the dimensions of the photosensitive coating film are qualified, the conveying device 50 transports the qualified battery cells to the photocuring device 30, where the photosensitive coating film is cured using ultraviolet light. After curing, the conveying device 50 delivers the battery cells to complete the operation.

[0100] By coating the marking location with a photosensitive coating film resistant to electrolyte corrosion, a protective film is formed on the surface of the marking. This protective film reduces the surface energy of the QR code surface, thereby reducing the wettability of the electrolyte liquid on the solid surface of the QR code coating. This makes it difficult for the electrolyte to spread and adhere, thus protecting the clarity of the QR code coating area. Moreover, even if a small amount of electrolyte adheres to the photosensitive coating film, it can be wiped off directly with alcohol without leaving any residue, without directly affecting the integrity and clarity of the QR code, thus ensuring the scanning effect and reducing the possibility of battery cell failure. At the same time, automatic coating and curing are achieved using the spraying device 10 and the photocuring device 30, and the size of the photosensitive coating film is detected by the image detection component 20 to ensure the coating effect. Compared with manual coating methods, this method can improve coating efficiency and coating quality.

[0101] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A marking coating system for applying photosensitive paint to the marking position of a part to be coated, characterized in that, include: A spraying device is used to spray the photosensitive coating onto the marked positions of the workpiece to be coated, so as to form a photosensitive coating film; An image detection component is disposed on the discharge side of the spraying device, and the image detection component is used to detect the size of the photosensitive coating film sprayed to the marked position; A photocuring device is located on the discharge side of the spraying device and is spaced apart from the spraying device. The image detection component is located between the spraying device and the photocuring device. The photocuring device is used to emit light to the surface of the photosensitive coating film for curing the photosensitive coating film.

2. The marking coating system according to claim 1, characterized in that, The marking coating system further includes a buffer component located on one side of the image detection component along the first direction. The buffer component is used to place unqualified parts to be coated. The spacing direction between the spraying device and the photocuring device intersects with the first direction.

3. The marking coating system according to claim 2, characterized in that, The marking coating system also includes a defective product transfer component, which is used to place the defective product to be coated onto the buffer component.

4. The marking coating system according to any one of claims 1-3, characterized in that, The marking coating system also includes a conveying device for sequentially conveying the workpiece to be coated to the spraying device, the image detection component, and the photocuring device.

5. The marking coating system according to claim 4, characterized in that, The marking coating system further includes a positioning fixture disposed on the conveying device. The positioning fixture is used to position the workpiece to be coated along a first direction and a second direction. The conveying device is used to sequentially convey the workpiece to be coated to the spraying device, the image detection component, and the photocuring device through the positioning fixture. The second direction is the same as the conveying direction of the conveying device, the first direction and the second direction are perpendicular, and the plane in which the first direction and the second direction are located intersects the height direction of the conveying device.

6. The marking coating system according to claim 5, characterized in that, The marking coating system also includes a material transfer component located on the material inlet side of the conveying device, which is used to place the workpiece to be coated onto the positioning fixture.

7. The marking coating system according to claim 6, characterized in that, The feeding and transfer component includes a movable component and a clamping component. The movable component has a movable end, and the movable end is provided with the clamping component. The clamping component is used to clamp the workpiece to be coated, and the movable component is used to place the workpiece to be coated, which is clamped by the clamping component, into the positioning fixture.

8. The marking coating system according to claim 7, characterized in that, The movable component includes a robotic arm, and the movable end of the robotic arm is connected to the clamping component.

9. The marking coating system according to any one of claims 1-3, characterized in that, The spraying device includes a paint spraying component, a flow path, and a regulating valve. The paint spraying component is connected to the flow path, and the flow path is equipped with a regulating valve for regulating the flow rate of the flow path. The flow path is used to supply the photosensitive paint to the paint spraying component, and the paint spraying component is used to spray the photosensitive paint onto the surface of the mark.

10. The marking coating system according to claim 9, characterized in that, The paint spraying component includes a piezoelectric spray valve.

11. A production system for parts to be coated, characterized in that, The labeling coating system includes any one of claims 1-10, wherein the object to be coated is a battery box or a battery cell.

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