Coating equipment, coating method and battery production line

Abstract

The invention relates to coating equipment, a coating method and a battery production line. The coating equipment comprises an operation table, a coating mechanism and a cleaning mechanism. The operation table is provided with a bearing surface for bearing a to-be-coated piece; the coating mechanism is movably arranged relative to the operation table; the cleaning mechanism is movably arranged relative to the operation table, the side, facing the bearing face, of the cleaning mechanism is sunken to form a groove, and an air blowing opening and an air suction opening are formed in the two opposite sides of the groove. When the coating mechanism coats an organic solvent on the surface of the to-be-coated piece, the cleaning mechanism can timely prevent harmful gas from diffusing all around and timely absorb the harmful gas, so that the air quality of the working environment where the coating equipment is located is protected, the probability that operators are harmed by the harmful gas is reduced, and the operators are protected.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and in particular to a coating device, a coating method and a battery production line. Background Art

[0002] Slit coating is a precise solution-based film-forming technology with the advantages of fast coating speed, high precision and uniform wet thickness. It is an important method for preparing high-quality thin films by chemical methods. It has the advantages of low cost. It has developed a series of high-end general products for pilot production and mass production. They are widely used in high-tech fields such as flat panel displays (LCD, OLED, QLED), touch screens, thin-film solar cells (OPV, perovskite), IC advanced packaging (FOWLP, FOPLP), hydrogen energy batteries, sensors, flexible and printed electronics, smart glass, etc.

[0003] During the use of coating equipment, organic solvents are easily volatilized and pollute the area where they are located. Therefore, there is an urgent need for a coating equipment that can reduce the solvent volatilization and pollution of the surrounding environment. Summary of the Invention

[0004] In view of the above problems, the present application provides a coating device, a coating method and a battery production line, which can absorb the problem of solvent volatilization polluting the surrounding environment when the coating device is running.

[0005] In a first aspect, the present application provides a coating apparatus comprising an operating table, a coating mechanism, and a cleaning mechanism. The operating table has a supporting surface for supporting the workpiece to be coated; the coating mechanism is movable relative to the operating table; and the cleaning mechanism is movable relative to the operating table. The cleaning mechanism is recessed toward the supporting surface to form a groove, with air outlets and air exhaust ports disposed on opposite sides of the groove.

[0006] In the technical solution of the embodiment of the present application, when the coating mechanism applies an organic solvent on the surface of the workpiece to be coated, the cleaning mechanism can promptly block the harmful gas from spreading around and promptly absorb the harmful gas to protect the air quality of the working environment where the coating equipment is located, and reduce the probability of the operator being harmed by harmful gases, thereby protecting the operator.

[0007] In some embodiments, the cleaning mechanism includes a blowing member, a connecting member and an exhaust member, at least part of the connecting member is constructed into a groove, the connecting member is provided with a blowing port and an exhaust port, the blowing member is connected to the blowing port and blows compressed gas into the connecting member, and the exhaust member is connected to the exhaust port.

[0008] In this way, setting the cleaning mechanism as multiple components such as blowing parts, connecting parts and exhaust parts can facilitate the design of the structure of the groove, so that the high-pressure gas entering the groove forms a laminar flow near the surface of the workpiece to be coated. The laminar flow will not directly blow onto the film layer formed by the coating on the workpiece to be coated, which can reduce the probability of patterns appearing on the surface of the film layer or different thicknesses in different parts of the film layer, and accelerate the crystallization efficiency of the film layer.

[0009] In some embodiments, the blowing member and the connecting member are movably connected to adjust the angle of the plane where the blowing port is located relative to the supporting surface.

[0010] The blowing direction of the blowing member, that is, the angle of the plane where the blowing port is located relative to the supporting surface (hereinafter referred to as the blowing angle), can be changed according to the specific shape of the surface of the workpiece to be coated, so that after the workpiece to be coated is coated, the thickness of the film layer formed on its surface is consistent in all parts, thereby improving the flexibility of the use of the blowing member and expanding the scope of use of the coating equipment.

[0011] In some embodiments, the cleaning mechanism further includes a first adjusting member, one end of which is connected to the blowing member, and the other end of which is connected to the connecting member, and can drive the blowing member to rotate relative to the connecting member.

[0012] When one or more of the blowing member, the first adjusting member and the connecting member are damaged, the damaged member can be replaced with a new member, thereby reducing the maintenance cost of the cleaning mechanism.

[0013] In some embodiments, one end of the first adjusting member is hinged to the blowing member, and the other end is hinged to the connecting member.

[0014] Such an arrangement not only reduces the difficulty of preparing the first adjusting member, but also enables stepless adjustment of the blowing angle of the blowing member, thereby improving the adjustment accuracy of the blowing angle.

[0015] In some embodiments, the air exhaust member and the connecting member are movably connected to adjust the angle of the plane where the air exhaust port is located relative to the supporting surface.

[0016] The exhaust direction of the exhaust member, that is, the angle of the plane where the exhaust port is located relative to the supporting surface (hereinafter referred to as the exhaust angle), can be changed according to the specific shape of the surface of the workpiece to be coated, so that after the workpiece to be coated is coated, the thickness of the film layer formed on its surface is consistent in various parts, thereby improving the flexibility of the use of the exhaust member and expanding the scope of use of the coating equipment.

[0017] In some embodiments, the cleaning mechanism further includes a second adjusting member, one end of which is connected to the exhaust member, and the other end of which is connected to the connecting member, and can drive the exhaust member to rotate relative to the connecting member.

[0018] When one or more of the exhaust member, the first adjustment member and the connecting member are damaged, the damaged parts can be replaced with new parts, thereby reducing the maintenance cost of the cleaning mechanism.

[0019] In some embodiments, one end of the second adjusting member is hinged to the exhaust member, and the other end is hinged to the connecting member.

[0020] Such an arrangement not only reduces the difficulty of preparing the first adjusting member, but also enables stepless adjustment of the blowing angle of the blowing member, thereby improving the adjustment accuracy of the blowing angle.

[0021] In some embodiments, the cleaning mechanism is movably disposed on the coating mechanism.

[0022] Arranging the cleaning mechanism directly on the coating mechanism can reduce the volume of the coating equipment, thereby expanding the working environment of the coating equipment.

[0023] In a second aspect, the present application provides a coating method, which comprises:

[0024] Provide parts to be coated;

[0025] Place the workpiece to be coated on the loading surface of the operating table;

[0026] The coating mechanism is started, and the coating mechanism coats the workpiece to be coated;

[0027] The cleaning mechanism is started, with the groove of the cleaning mechanism facing the coated workpiece, and cleaning is performed.

[0028] While the coating mechanism applies organic solvent to the surface of the object to be coated, the cleaning mechanism can promptly block the spread of harmful gases and absorb them in time, thereby protecting the air quality of the working environment where the coating equipment is located and reducing the probability of operators being harmed by harmful gases, thus protecting the operators. In addition, the cleaning mechanism can operate synchronously with the coating mechanism to achieve simultaneous absorption during coating.

[0029] In some embodiments, before placing the article to be coated on the supporting surface of the operating table, the process includes:

[0030] The cleaning mechanism is started to clean the bearing surface.

[0031] The cleaning mechanism may first perform a cleaning operation on the carrying surface where no workpiece to be coated is placed, so as to remove particles and other impurities on the surface of the carrying surface, thereby reducing the probability of particles damaging the coating mechanism and the workpiece to be coated.

[0032] In a third aspect, the present application provides a battery production line, which includes a workpiece conveying line, a drying device and a coating device in any of the above embodiments. The workpiece conveying line is used to transfer the workpiece to be coated after being processed by the coating device to the drying device.

[0033] When the coating mechanism of the battery production line applies organic solvent to the surface of the coated parts, the cleaning mechanism can promptly block the spread of harmful gases and absorb them in time, thereby protecting the air quality of the working environment where the coating equipment is located and reducing the risk of operators being harmed by harmful gases, thus protecting the operators. In addition, the cleaning mechanism can operate synchronously with the coating mechanism to achieve simultaneous absorption during coating.

[0034] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present application. The same reference numerals are used throughout the drawings to represent the same components. In the drawings:

[0036] Figure 1 Schematic diagram of the structure of a coating device according to one or more embodiments.

[0037] Figure 2 It is a schematic structural diagram of the coating mechanism of the coating device during coating according to one or more embodiments.

[0038] Figure 3 It is a schematic structural diagram of the coating mechanism of the coating device according to one or more embodiments when not coating.

[0039] Figure 4 Schematic diagram of the structure of a cleaning mechanism of a coating device according to one or more embodiments.

[0040] Figure 5 Schematic diagram of the structure of the cleaning mechanism of the coating device at another angle according to one or more embodiments.

[0041] Figure 6 is a flow chart of a coating method according to one or more embodiments.

[0042] The accompanying drawings in the specific implementation manner are as follows:

[0043] 100. Coating equipment;

[0044] 10. Operating table; 11. Carrying surface; 20. Coating mechanism; 30. Cleaning mechanism; 31. Groove; 32. Blowing member; 33. Connecting member; 34. Exhaust member; 341. Exhaust duct; 35. First adjusting member; 36. Second adjusting member; 40. Pre-coating roller mechanism; X, first direction; Y, second direction; Z, third direction. DETAILED DESCRIPTION

[0045] The following embodiments of the technical solution of the present application will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application and are therefore only examples and are not intended to limit the scope of protection of the present application.

[0046] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0047] In the description of the embodiments of this application, the use of technical terms such as "first" and "second" is solely for distinguishing different objects and should not be understood as indicating or implying relative importance or implicitly indicating the quantity, specific order, or primary and secondary relationship of the technical features indicated. In the description of the embodiments of this application, the meaning of "plurality" is more than two, unless otherwise specifically defined.

[0048] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0049] In the description of the embodiments of this application, the term "and / or" is used to describe the association relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this document, if it appears, generally indicates that the related objects are in an "or" relationship.

[0050] In the description of the embodiments of the present application, if it appears, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0051] In the description of the embodiments of the present application, if any, technical terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", and "circumferential" indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present 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 and operated in a specific orientation. Therefore, they should not be understood as limitations on the embodiments of the present application.

[0052] In the description of the embodiments of the present application, unless otherwise expressly specified or limited, technical terms such as "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; internal connections between two components or interactions between two components. Those skilled in the art can understand the specific meanings of the above terms in the embodiments of the present application based on specific circumstances.

[0053] Currently, market developments indicate that power batteries are becoming increasingly widely used. They are not only used in energy storage systems such as hydropower, thermal, wind, and solar power plants, but are also widely used in electric vehicles like electric bicycles, electric motorcycles, and electric vehicles, as well as in military equipment and aerospace. As power battery applications continue to expand, market demand is also growing.

[0054] Batteries consist of cells. Before these cells are formed, a coating device is used to apply an organic solvent to components such as the current collectors in the cell's electrode assembly. During the coating process, the organic solvent easily evaporates and produces harmful gases, which can fill the coating device's operating environment and pose a health risk to operators.

[0055] In order to improve the problem that harmful gases generated by the coating device cannot be removed in time during use and endanger the health of the operator, the present application provides a coating device. The cleaning mechanism of the coating device operates synchronously with the coating mechanism to absorb the harmful gases generated by the volatilization of the coating organic solvent in real time.

[0056] The coating equipment described above can be applied to various fields such as thin-film solar cells and display panels. The coating equipment will be described below in conjunction with its application in the battery field.

[0057] See also Figure 1 and Figure 2Some embodiments of the present application provide a coating apparatus 100. The coating apparatus 100 includes an operating table 10, a coating mechanism 20, and a cleaning mechanism 30. The operating table 10 has a supporting surface 11 for supporting the workpiece to be coated; the coating mechanism 20 is movably disposed relative to the operating table 10; and the cleaning mechanism 30 is movably disposed relative to the operating table 10. The cleaning mechanism 30 is recessed toward the supporting surface 11 to form a groove 31. Opposite sides of the groove 31 are provided with an air outlet and an air exhaust port.

[0058] The operating table 10 is mainly used for the coating mechanism 20 and the cleaning mechanism 30 to operate on the workpiece to be coated. The operating table 10 can be flexibly moved so as to be applied in different working environments.

[0059] The coating mechanism 20 can be movably mounted on the operating table 10, or connected to another driving mechanism, so that the coating mechanism 20 can move relative to the supporting surface 11 along a first direction X, a second direction Y, and a third direction Z. The first direction X, the second direction Y, and the third direction Z intersect with each other. The first direction X can be parallel to the length direction of the supporting surface 11, the second direction Y can be parallel to the width direction of the supporting surface 11, and the third direction Z can be parallel to the thickness direction of the supporting surface 11.

[0060] The cleaning mechanism 30 can also be movably mounted on the operating table 10 , or the cleaning mechanism 30 can be connected to another driving mechanism to enable the cleaning mechanism 30 to move along the first direction X and the second direction Y relative to the carrying surface 11 .

[0061] The groove 31 of the cleaning mechanism 30 can be understood as a cavity formed therein, and the inner wall of the cavity is provided with a blowing port and an exhaust port. When the cleaning mechanism 30 is in operation, the opening of the cavity faces the carrying surface 11 to absorb dust or gas on the carrying surface 11.

[0062] When the article to be coated is transferred to the support surface 11, the coating apparatus 100 begins operation. The coating mechanism 20 can move toward the article to be coated. When the coating mechanism 20 is located above the article to be coated, the coating mechanism 20 can first move along the third direction Z toward the article to be coated until the coating mechanism 20 reaches the initial coating position. The coating mechanism 20 can apply the organic solvent to the surface of the article to be coated while moving along the first direction X or the second direction Y.

[0063] During this process, the cleaning mechanism 30 will move to the vicinity of the coating mechanism 20, and the groove 31 of the cleaning mechanism 30 can face the part of the part to be coated where the organic solvent has been applied. Because the groove 31 is provided with a blowing port and an exhaust port, when the groove 31 is close to the part to be coated, the part to be coated and the groove 31 facing each other can generate a negative pressure. Under the action of the negative pressure, impurities such as dust in this part and harmful gases generated by the organic solvent can first enter the groove 31 and be blocked by the groove wall of the groove 31 to slow down the spread of harmful gases to the surroundings. Because the groove 31 is also provided with an exhaust port, when the blowing port and the exhaust port are running and the groove 31 is close to the part to be coated, the gas on the surface of the part to be coated near the groove 31 can form a Coanda effect. This part of the part to be coated can form a high-speed and thin laminar flow close to the bearing surface 11.

[0064] The Coanda effect, also known as the wall adhesion or Coanda effect, is a phenomenon in which a fluid (water or air) deviates from its original flow direction and instead follows the surface of a protruding object. When surface friction (also known as fluid viscosity) exists between the fluid and the surface of the object it is flowing over, the fluid will follow the surface as long as the curvature is not large. According to Newton's third law, if an object exerts a deflecting force on a fluid, the fluid must also exert a counter-deflecting force on the object. This force is particularly pronounced on lightweight objects.

[0065] The laminar flow can draw harmful gases and impurities from the coating workpiece toward the groove 31 into the exhaust port, and then into the exhaust gas collection device (such as a collection box) through the exhaust port. In this way, the harmful gases generated during the coating process are collected.

[0066] It should be noted that the moving route of the cleaning mechanism 30 overlaps with the coating route of the coating mechanism 20 so as to absorb harmful gases generated by the organic solvent coated on the workpiece to be coated in real time.

[0067] In summary, when the coating mechanism 20 applies organic solvent on the surface of the workpiece to be coated, the cleaning mechanism 30 can promptly block the harmful gas from spreading around and absorb the harmful gas in time to protect the air quality of the working environment where the coating equipment 100 is located, and reduce the probability of the operator being harmed by harmful gases, thereby protecting the operator.

[0068] Please continue reading Figure 3 In some embodiments, the cleaning mechanism 30 includes a blowing member 32, a connecting member 33 and an exhaust member 34. At least part of the connecting member 33 is configured as a groove 31. The connecting member 33 is provided with a blowing port and an exhaust port. The blowing member 32 is connected to the blowing port and blows compressed gas into the connecting member 33. The exhaust member 34 is connected to the exhaust port.

[0069] The blowing member 32 may include an air knife, one end of which is connected to the blowing port and the other end of which is connected to an air pump. The air pump draws in external air and compresses the extracted air into high-pressure gas. The high-pressure gas then flows into the groove 31 through the air knife, and the airflow into the groove 31 may be laminar.

[0070] The connecting member 33 may include a bracket and a groove 31 . The bracket may be movably mounted on the bearing surface 11 via a slide rail, a slide groove, or the like.

[0071] The exhaust member 34 may include an exhaust fan and an exhaust duct 341. One end of the exhaust duct 341 is connected to the exhaust port, and the other end is connected to the exhaust fan. The exhaust duct 341 can be mounted on the bracket using a removable method such as a snap. The end of the exhaust member 34 facing away from the exhaust duct 341 can be connected to the exhaust gas collection unit.

[0072] In this way, setting the cleaning mechanism 30 to include multiple components such as a blowing part 32, a connecting part 33 and an exhaust part 34 can facilitate the design of the structure of the groove 31, so that the high-pressure gas entering the groove 31 forms a laminar flow near the surface of the workpiece to be coated. The laminar flow will not directly blow toward the film layer formed on the workpiece to be coated, which can reduce the probability of patterns appearing on the surface of the film layer or different thicknesses in different parts of the film layer, and accelerate the crystallization efficiency of the film layer.

[0073] In other embodiments, Figure 4 As shown, the air knife can be strip-shaped, and its air outlet can extend along the first direction X. The air knife can be set on a groove wall of the groove 31, and the length of the air knife is equal to the length of the groove wall of the groove 31. In this way, the speed of gas filling in each part of the groove 31 is roughly the same.

[0074] In some embodiments, the blowing member 32 and the connecting member 33 are movably connected to adjust the angle of the plane where the blowing port is located relative to the supporting surface 11.

[0075] The connection between the blowing member 32 and the connecting member 33 may be, but is not limited to, a snap-fit ​​connection or a rotational connection. For example, when the blowing direction of the blowing member 32 is parallel to the support surface 11, the airflow entering the groove 31 may be laminar, and the laminar flow may be horizontal (i.e., parallel to the support surface 11). When the blowing direction of the blowing member 32 changes, the airflow entering the groove 31 may change direction after colliding with the inner wall of the groove 31, forming turbulent flow in different directions.

[0076] In this way, the blowing direction of the blowing member 32, that is, the angle of the plane where the blowing port is located relative to the supporting surface 11 (hereinafter referred to as the blowing angle) can be changed according to the specific shape of the surface of the workpiece to be coated, so that after the workpiece to be coated is coated, the thickness of the film layer formed on its surface is consistent in various parts, thereby improving the flexibility of use of the blowing member 32 and expanding the scope of use of the coating equipment 100.

[0077] It should be noted that the blowing speed of the blowing member 32 can be adjusted according to actual conditions such as the type of organic solvent to be coated and the required coating film thickness.

[0078] Furthermore, if Figure 4 As shown, in some embodiments, the cleaning mechanism 30 further includes a first adjusting member 35 , one end of the first adjusting member 35 is connected to the blowing member 32 , and the other end is connected to the connecting member 33 , and can drive the blowing member 32 to rotate relative to the connecting member 33 .

[0079] The blowing member 32, the first adjusting member 35, and the connecting member 33 are all detachably connected. The first adjusting member 35 is provided to adjust the blowing angle of the blowing member 32. If one or more of the blowing member 32, the first adjusting member 35, and the connecting member 33 are damaged, the damaged parts can be replaced with new ones, thereby reducing the maintenance cost of the cleaning mechanism 30.

[0080] Furthermore, if Figure 4 As shown, in some embodiments, one end of the first adjusting member 35 is hinged to the blowing member 32 , and the other end is hinged to the connecting member 33 .

[0081] Such an arrangement not only reduces the difficulty of preparing the first adjusting member 35 , but also enables stepless adjustment of the blowing angle of the blowing member 32 , thereby improving the adjustment accuracy of the blowing angle.

[0082] See also Figure 4 In some embodiments, the air exhaust member 34 and the connecting member 33 are movably connected to adjust the angle of the plane where the air exhaust port is located relative to the supporting surface 11.

[0083] The connection between the air extraction member 34 and the connecting member 33 may be, but is not limited to, a snap-fit ​​connection or a rotational connection. For example, when the air extraction member 34 is drawn in a direction parallel to the support surface 11, the airflow entering the groove 31 may be laminar, and the laminar flow may be horizontal (i.e., parallel to the support surface 11). When the air extraction member 34 changes its direction, the airflow entering the groove 31 may change direction after colliding with the inner wall of the groove 31, forming turbulent flow in different directions.

[0084] In this way, the exhaust direction of the exhaust member 34, that is, the angle of the plane where the exhaust port is located relative to the supporting surface 11 (hereinafter referred to as the exhaust angle) can be changed according to the specific shape of the surface of the workpiece to be coated, so that after the workpiece to be coated is coated, the thickness of the film layer formed on its surface is consistent, thereby improving the flexibility of use of the exhaust member 34 and expanding the scope of use of the coating equipment 100.

[0085] Similarly, the suction speed of the suction member 34 can be adjusted according to actual conditions such as the type of organic solvent to be coated and the required coating film thickness.

[0086] See also Figure 5 In some embodiments, the cleaning mechanism 30 further includes a second adjusting member 36 , one end of the second adjusting member 36 is connected to the exhaust member 34 , and the other end is connected to the connecting member 33 , and can drive the exhaust member 34 to rotate relative to the connecting member 33 .

[0087] The suction member 34, the first adjusting member 35, and the connecting member 33 are all detachably connected. The first adjusting member 35 is provided to adjust the suction angle of the suction member 34. If one or more of the suction member 34, the first adjusting member 35, and the connecting member 33 are damaged, the damaged parts can be replaced with new ones, thereby reducing the maintenance cost of the cleaning mechanism 30.

[0088] See also Figure 5 In some embodiments, one end of the second adjusting member 36 is hinged to the exhaust member 34 , and the other end is hinged to the connecting member 33 .

[0089] Such an arrangement not only reduces the difficulty of preparing the first adjusting member 35 , but also enables stepless adjustment of the blowing angle of the blowing member 32 , thereby improving the adjustment accuracy of the blowing angle.

[0090] like Figure 1 As shown, in some embodiments, the cleaning mechanism 30 is movably disposed on the coating mechanism 20 .

[0091] The connection between the cleaning mechanism 30 and the coating mechanism 20 can be, but is not limited to, a sliding connection, a snap-on connection, or the like. In contrast to disposing the driving mechanism outside the coating mechanism 20 to drive the movement of the cleaning mechanism 30, disposing the cleaning mechanism 30 directly on the coating mechanism 20 can reduce the size of the coating apparatus 100, thereby expanding the operating environment of the coating apparatus 100.

[0092] See also Figure 1 ,exist Figure 1 In the illustrated example, the coating mechanism 20 includes a gantry, to which the cleaning mechanism 30 and all other components of the coating mechanism 20 are mounted. The gantry is movable relative to the operating table 10. The operating table 10 also includes a base plate having suction holes and a support surface 11. The suction holes extend through the support surface 11. When an object to be coated is placed on the support surface 11, it is attracted by the suction holes, thereby reducing the probability of movement of the object to be coated during operation of the coating apparatus 100.

[0093] Please continue reading Figure 1The coating device 100 further includes a pre-coating roller mechanism 40 . The pre-coating roller mechanism 40 is located on one side of the operating table 10 and can pre-treat the workpiece to be coated and transfer the workpiece to be coated to the carrying surface 11 of the operating table 10 .

[0094] like Figure 6 As shown, some embodiments of the present application provide a coating method. The coating method includes the following steps:

[0095] S100, providing parts to be coated;

[0096] S200, placing the workpiece to be coated on the carrying surface 11 of the operating table 10;

[0097] S300, starting the coating mechanism 20, and coating the workpiece;

[0098] S400, the cleaning mechanism 30 is started, the groove 31 of the cleaning mechanism 30 faces the coated workpiece, and cleaning is performed.

[0099] The coating method is described below by taking coating of solar cells as an example.

[0100] First, the article to be coated is placed on the supporting surface 11 of the operating table 10, and then the coating mechanism 20 is activated. The coating mechanism 20 moves to the initial coating position and performs a coating operation on the article to be coated. While the coating mechanism 20 moves to the initial coating position, the cleaning mechanism 30 is activated and moves near the coating mechanism 20, but the cleaning mechanism 30 does not perform a cleaning operation. After the coating mechanism 20 applies the organic solvent to the surface of the article to be coated, the cleaning mechanism 30 performs a cleaning operation on the article to be coated, absorbing harmful gases generated by the organic solvent and nearby impurities.

[0101] Thus, while the coating mechanism 20 is applying the organic solvent to the surface of the object to be coated, the cleaning mechanism 30 can promptly block the spread of harmful gases and promptly absorb the harmful gases, thereby protecting the air quality of the working environment where the coating equipment 100 is located and reducing the probability of operators being harmed by the harmful gases, thereby protecting the operators. Furthermore, the cleaning mechanism 30 can operate synchronously with the coating mechanism 20, achieving simultaneous coating and absorption.

[0102] In some embodiments, before placing the workpiece to be coated on the carrying surface 11 of the operating table 10 , the process includes: starting the cleaning mechanism 30 to clean the carrying surface 11 .

[0103] For example, Figure 1As shown, when the workpiece to be coated arrives at the pre-coating roller mechanism 40, the cleaning mechanism 30 can first perform a cleaning operation on the carrying surface 11 where no workpiece to be coated is placed, so as to remove particles and other impurities on the surface of the carrying surface 11, thereby reducing the probability of particles damaging the coating mechanism 20 and the workpiece to be coated.

[0104] In addition, this application also provides a battery production line, which includes a workpiece conveyor line, a drying device, and a coating device according to any of the above embodiments. After being processed by the coating device, the workpiece to be coated can be transported by the workpiece conveyor line to the drying device for drying. For relevant information about the battery production line, please refer to the relevant information described above and will not be repeated here.

[0105] When the coating mechanism 20 of the battery production line applies an organic solvent to the surface of the coated part, the cleaning mechanism 30 can promptly block the spread of harmful gases and absorb them in a timely manner, thereby protecting the air quality of the working environment where the coating equipment 100 is located and reducing the probability of operators being harmed by harmful gases, thereby protecting the operators. Furthermore, the cleaning mechanism 30 can operate synchronously with the coating mechanism 20 to achieve simultaneous absorption during coating.

[0106] like Figure 1 As shown, specifically in one embodiment, the coating device 100 further includes an operating table 10, a cleaning mechanism 30 and a coating mechanism 20. The cleaning mechanism 30 and the coating mechanism 20 are both movable relative to the operating table 10.

[0107] When the article to be coated is transferred to the supporting surface 11, the coating mechanism 20 can move toward the article to be coated. When the coating mechanism 20 is located above the article to be coated, the coating mechanism 20 can first move along the third direction Z toward the article to be coated until the coating mechanism 20 reaches the initial coating position. The coating mechanism 20 can apply the organic solvent to the surface of the article to be coated while moving along the first direction X or the second direction Y.

[0108] Because the groove 31 is also provided with an exhaust port, when the blowing port and the exhaust port are in operation and the groove 31 is close to the workpiece to be coated, the gas near the surface of the groove 31 of the workpiece to be coated can form a Coanda effect. This part of the workpiece to be coated can form a high-speed and thin laminar flow close to the supporting surface 11.

[0109] This laminar flow draws harmful gases and impurities from the coated workpiece into the recess 31 and into the exhaust port, where they are then transported to an exhaust gas collection element (e.g., a collection box). This effectively collects harmful gases generated during the coating process, protecting the air quality of the operating environment where the coating apparatus 100 is located and reducing the risk of harmful gases to operators, thereby protecting the operator.

[0110] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned 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.

[0111] The above-described embodiments merely represent several implementation methods of the present application. 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 a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A coating device, characterized in that, include: An operating table having a bearing surface for bearing the workpiece to be coated; A coating mechanism is movably arranged relative to the operating table; The cleaning mechanism is movably arranged relative to the operating table. The cleaning mechanism is recessed toward one side of the bearing surface to form a groove. An air blowing port and an air exhaust port are provided on opposite sides of the groove.

2. The coating device according to claim 1, characterized in that The cleaning mechanism includes a blowing member, a connecting member and an exhaust member, at least a portion of the connecting member is constructed as the groove, the connecting member is provided with the blowing port and the exhaust port, the blowing member is connected to the blowing port and blows compressed gas into the connecting member, and the exhaust member is connected to the exhaust port.

3. The coating device according to claim 2, characterized in that The blowing member and the connecting member are movably connected to adjust the angle of the plane where the blowing port is located relative to the bearing surface.

4. The coating device according to claim 3, characterized in that The cleaning mechanism further comprises a first adjusting member, one end of which is connected to the blowing member, and the other end of which is connected to the connecting member, and can drive the blowing member to rotate relative to the connecting member.

5. The coating device according to claim 4, characterized in that One end of the first adjusting member is hinged to the blowing member, and the other end is hinged to the connecting member.

6. The coating device according to claim 2, characterized in that The air suction member and the connecting member are movably connected to adjust the angle of the plane where the air suction port is located relative to the bearing surface.

7. The coating device according to claim 6, characterized in that The cleaning mechanism further includes a second adjusting member, one end of which is connected to the air exhaust member, and the other end of which is connected to the connecting member, and can drive the air exhaust member to rotate relative to the connecting member.

8. The coating device according to claim 7, characterized in that One end of the second adjusting member is hinged to the air exhaust member, and the other end is hinged to the connecting member.

9. The coating device according to any one of claims 1 to 8, characterized in that: The cleaning mechanism is movably arranged on the coating mechanism.

10. A coating method, characterized in that: Applicable to the coating device according to any one of claims 1 to 9, the coating method comprising: Provide parts to be coated; Placing the workpiece to be coated on the supporting surface of the operating table; Starting a coating mechanism to coat the workpiece to be coated; The cleaning mechanism is started, with the groove of the cleaning mechanism facing the coated workpiece, and cleaning is performed.

11. The coating method according to claim 10, characterized in that Before placing the workpiece to be coated on the supporting surface of the operating table, the process includes: The cleaning mechanism is started to clean the carrying surface.

12. A battery production line, characterized in that: It comprises a workpiece conveying line, a drying device and a coating device as described in any one of claims 1 to 9, wherein the workpiece conveying line is used to transfer the workpiece to be coated after being processed by the coating device to the drying device.

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