Coating device and battery manufacturing equipment

Abstract

The present application discloses a coating device and a battery manufacturing equipment, wherein the coating device comprises a coating die, a base and a die mounting mechanism. The coating die is used to coat the slurry onto the pole piece, and the base has a first surface. A guide groove and a receiving groove are provided on the first surface, and the guide groove extends along a first direction, and the base is used to support the coating die. The die mounting mechanism comprises a sliding wheel and a mounting plate, and the sliding wheel is slidably connected to the guide groove to drive the mounting plate to move along the guide groove. A mounting hole is provided on the mounting plate, and the mounting hole is used to mount the coating die to the mounting plate. Among them, the sliding wheel can move into the receiving groove to drive the mounting plate to move toward the base, and limit the movement of the mounting plate relative to the base. The above-mentioned coating device and battery manufacturing equipment can improve the efficiency of the coating die installation of the coating device and improve the efficiency of battery production.

Description

Technical Field

[0001] The present application relates to the field of batteries, and in particular to a coating device and battery manufacturing equipment. Background Art

[0002] In the production process of battery cells, the coating device is used to coat the electrode of the battery cell with slurry. At present, the installation process of the coating die head is cumbersome, and due to the heavy weight of the coating die head, the installation position of the coating die head cannot be quickly adjusted, which reduces the production efficiency. Utility Model Content

[0003] In view of the above problems, the present application provides a coating device and a battery manufacturing equipment, which can improve the efficiency of the coating die installation of the coating device to improve the efficiency of battery production.

[0004] In the first aspect, the present application provides a coating device, including a coating die, a base and a die mounting mechanism. The coating die is used to coat the slurry onto the pole piece, and the base has a first surface. A guide groove and a receiving groove are provided on the first surface, and the guide groove extends along a first direction, and the base is used to support the coating die. The die mounting mechanism includes a sliding wheel and a mounting plate, and the sliding wheel is slidably connected to the guide groove to drive the mounting plate to move along the guide groove. A mounting hole is provided on the mounting plate, and the mounting hole is used to mount the coating die to the mounting plate. Among them, the sliding wheel can move into the receiving groove to drive the mounting plate to move toward the base, and limit the movement of the mounting plate relative to the base.

[0005] In the technical solution of the embodiment of the present application, a coating die is provided to coat the slurry on the pole piece. The base is used to install the coating die to provide a stable support for the coating of the slurry. The die mounting mechanism is used to replace different types of coating die heads. The mounting plate is connected to the coating die, and the sliding wheel drives the mounting plate and the coating die to move, so as to facilitate the movement of the coating die for replacement. A guide rail groove is provided on the substrate to guide the moving direction of the guide rail and move the coating die to a preset position. An accommodating groove is provided to accommodate the sliding wheel, and the mounting plate is lowered onto the base to limit the position of the coating die, so as to facilitate the installation of the coating die. The above process realizes the rapid installation of the coating die, improves the installation efficiency of the coating die, and thus improves the efficiency of battery production.

[0006] In some embodiments, a position sensor is provided on the base, and a sensing block is provided at the end of the mounting plate along the first direction, and the position sensor is used to detect the moving position of the sensing block. In the above structure, by providing a position sensor to sense the position of the sensing block, the position accuracy of the mounting plate moving along the first direction is improved, and the accuracy of the coating die head installation position is further improved.

[0007] In some embodiments, there are two sliding wheels, and the two sliding wheels are arranged along the second direction, the second direction intersects with the first direction, and two guide rail grooves are arranged correspondingly, the guide rail groove has a first end and a second end, and the position sensor is arranged at the first end, and the cross-sectional width of the guide rail groove gradually increases from the first end to the second end. In the above structure, two sliding wheels are arranged to move on both sides of the mounting plate along the second direction, which improves the smoothness of the moving process. In addition, the corresponding guide rail grooves are arranged to further improve the accuracy of the moving position.

[0008] In some embodiments, the coating device further includes a lifting mechanism, which includes a lifting block and a lifting cylinder. The lifting block is disposed in the accommodating groove, and the lifting block is used to support the sliding wheel. The lifting cylinder is connected to the lifting block, and the lifting cylinder is used to drive the lifting block to move toward the sliding wheel. In the above structure, by setting the lifting mechanism, the lifting block is lifted and lowered, and the lifting block is flush with the first surface to facilitate the movement of the sliding wheel on the base. The movement of the sliding wheel can drive the mounting plate and the coating die to move, thereby improving the efficiency of disassembly and replacement of the coating die.

[0009] In some embodiments, a movable limit block is further connected to the side of the lifting block facing the sliding wheel, and the movable limit block is arranged on both sides of the sliding wheel along the second direction to limit the movement of the sliding wheel along the second direction. In the above structure, by setting the movable limit block, the movement of the sliding wheel along the second direction during the lifting or lowering process is limited, the stability of the lifting process is improved, and the position accuracy of the coating die head installation is improved.

[0010] In some embodiments, the coating device also includes a gap adjustment mechanism, which includes a fixed plate, a moving cylinder and a moving rod. The fixed plate is arranged on the base, and the moving cylinder is arranged on the fixed plate. The moving rod is connected to the moving cylinder, and the moving rod moves along the second direction under the drive of the moving cylinder, and the moving rod is used to push the mounting plate to move along the second direction. In the above structure, the fixed plate can stably connect the moving cylinder to improve the stability during the gap adjustment process. The moving cylinder drives the moving rod to move, providing reliable power for the moving rod to push the mounting plate and the coating die head. The moving rod moves along the second direction and applies power along the second direction to the mounting plate, thereby improving the accuracy and efficiency of adjusting the installation position of the coating die head.

[0011] In some embodiments, the gap adjustment mechanism further includes a limit plate disposed on the base, the limit plate and the fixing plate are disposed opposite to each other along the second direction, and the limit plate is used to limit the moving distance of the mounting plate along the second direction. In the above structure, the limit plate is provided to limit the maximum moving distance of the mounting plate and the coating die head, thereby reducing the risk that the moving position of the mounting plate and the coating die head deviates too much from the preset range.

[0012] In some embodiments, a ball is connected to the end of the moving rod facing the coating die head, and the end of the ball facing the mounting plate is slidably connected to the coating die head. In the above structure, by arranging the ball at the end of the moving rod, the ball can rotate relative to the mounting plate, reducing the friction and damage generated in the process of the moving rod pushing the mounting plate to move, while improving the smoothness of the moving process.

[0013] In some embodiments, a limiting groove is provided on one side of the mounting plate facing the moving rod, and the limiting groove is used to accommodate the ball to limit the movement of the ball along the surface of the mounting plate. In the above structure, by setting the limiting groove to limit the moving direction of the ball, the risk of the mounting plate being offset during the movement process is reduced, and the accuracy of the moving position of the coating die head is improved.

[0014] In some embodiments, there are two gap adjustment mechanisms, and the two gap adjustment mechanisms are spaced apart along the first direction. In the above structure, the two adjustment mechanisms push the mounting plate at the same time, and can simultaneously apply a pushing force to both ends of the mounting plate along the first direction, thereby improving the efficiency and stability of the pushing process.

[0015] In some embodiments, the coating device further comprises a magnetic plate disposed on the base, which has a magnetic attraction effect on the mounting plate to limit the relative movement of the mounting plate to the base. In the above structure, the magnetic plate can be provided to connect the mounting plate with a certain strength, which can replace the bolt connection method, thereby improving the efficiency and convenience of installation.

[0016] In some embodiments, the coating device further includes a moving mechanism, and the moving mechanism includes a moving bracket and a support plate. The moving bracket is provided with a roller, and the support plate is provided on the moving bracket. The support plate is used to support the die head mounting mechanism, and the moving bracket is used to drive the die head mounting mechanism and the coating die head to move. In the above structure, the setting of the moving mechanism can move the die head mounting mechanism and the coating die head, thereby improving the efficiency and convenience of die head replacement.

[0017] In some embodiments, a guide rail extending in a first direction is provided on the support plate, the guide rail is slidably connected to the sliding wheel, and a baffle is provided at the end of the guide rail in the first direction, and the baffle is used to limit the displacement of the sliding wheel in a second direction. The guide rail is provided to be connected to the guide rail groove, and the mounting plate is continuously pushed to be pushed from the support plate to the first surface. The baffle can reduce the risk of the mounting plate sliding off the support plate during the movement, thereby improving the stability of the movement process.

[0018] In a second aspect, the present application provides a battery manufacturing device, which includes the coating device in the above embodiment.

[0019] 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

[0020] The features, advantages and technical effects of exemplary embodiments of the present application will be described below with reference to the accompanying drawings.

[0021] Figure 1 A schematic diagram of the exploded structure of a battery cell provided in some embodiments of the present application;

[0022] Figure 2 A schematic diagram of a top view of a coating device provided in some embodiments of the present application;

[0023] Figure 3 A schematic diagram of the main structure of a coating device provided in some embodiments of the present application;

[0024] Figure 4 A schematic diagram of the main structure of a coating device provided in some other embodiments of the present application;

[0025] Figure 5 for Figure 2 A schematic diagram of the enlarged structure of part A;

[0026] Figure 6 A schematic diagram of the main structure of a coating device provided in some other embodiments of the present application;

[0027] Figure 7 A schematic diagram of the structure of a moving mechanism provided in some embodiments of the present application;

[0028] Figure 8 A schematic structural diagram of a support plate of a mobile mechanism provided in some embodiments of the present application.

[0029] DETAILED DESCRIPTION OF REFERENCE NUMERALS

[0030] 1. Battery cell; 10. Electrode assembly; 101. Pole piece; 20. Shell; 30. End cover; 40. Shell; X, first direction; Y, second direction; 2. Coating device; 201. Coating die; 202. Die mounting mechanism; 203. Base; 204. First surface; 205. Guide rail groove; 206. Accommodating groove; 207. Position sensor; 208. Induction block; 209. Mounting plate; 210. Sliding wheel; 2 11. Lifting mechanism; 212. Lifting block; 213. Lifting cylinder; 214. Moving limit block; 215. Gap adjustment mechanism; 216. Fixed plate; 217. Moving cylinder; 218. Moving rod; 219. Limit plate; 220. Ball bearing; 221. Limit groove; 222. Magnetic plate; 223. Moving mechanism; 224. Moving bracket; 225. Support plate; 226. Roller; 227. Guide rail; 228. Baffle. DETAILED DESCRIPTION

[0031] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field 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" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0033] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0034] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0035] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0036] In the description of the embodiments of the present application, 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).

[0037] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which 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 referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0038] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0039] The term "and / or" in this application is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this application generally indicates that the associated objects before and after are in an "or" relationship.

[0040] In the embodiments of the present application, the same reference numerals represent the same components, and for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments. It should be understood that the thickness, length, width and other dimensions of various components in the embodiments of the present application shown in the drawings, as well as the overall thickness, length, width and other dimensions of the integrated device are only exemplary descriptions and should not constitute any limitation to the present application.

[0041] Battery devices are widely used in various electronic devices, such as mobile phones, laptop computers, electric vehicles, electric cars, electric ships, electric toy cars, electric toy planes, electric toy ships, electric tools and energy storage systems, etc. The battery device (Battery Apparatus) mentioned in the embodiments of the present application may include one or more battery cell assemblies for providing voltage and capacity. The battery cell assembly (Battery Cell Assembly) may include multiple battery cells, and the multiple battery cells are connected in series, in parallel or in mixed connection through a busbar component.

[0042] Illustratively, a battery cell may be the smallest unit constituting a battery device.

[0043] Figure 1 A schematic diagram of the exploded structure of a battery cell provided in some embodiments of the present application.

[0044] like Figure 1 As shown, in some embodiments, the battery cell 1 includes a housing 40 and an electrode assembly 10 accommodated in the housing 40. The housing 40 may include an end cap 30 and a shell 20.

[0045] The electrode assembly 10 includes a positive electrode sheet and a negative electrode sheet. During the charge and discharge process of the battery cell 1, active ions (such as lithium ions) are inserted and removed back and forth between the positive electrode and the negative electrode. Optionally, the electrode assembly 10 also includes a separator disposed between the positive electrode and the negative electrode, which can reduce the risk of short circuit between the positive and negative electrodes and allow active ions to pass through. The battery cell 1 also includes an electrolyte contained in the housing 40. The electrolyte plays the role of conducting ions between the positive and negative electrodes.

[0046] Illustratively, the positive electrode plate includes a positive electrode current collector and an active material layer coated on the surface of the positive electrode current collector, and the negative electrode plate includes a negative electrode current collector and a negative electrode active material layer coated on the surface of the negative electrode current collector.

[0047] The positive electrode active material layer and the negative electrode active material layer on the electrode plate are formed by coating on the surface of the current collector through a coating device. The coating die head squeezes the slurry material toward the surface of the current collector, and as the current collector moves, the coating die head coats the slurry material on the current collector.

[0048] Due to the heavy weight of the die head, it is impossible to carry it manually. It must be carried by a crane. Each coating machine head is equipped with a crane, which is costly and not conducive to horizontal expansion. Manually carrying the die head is time-consuming and labor-intensive, and the safety of personnel cannot be guaranteed. During the installation process, the die head positioning plate and the coating machine base must be locked and positioned from bottom to top using connecting screws. Due to the on-site environment and height restrictions, it is difficult to find the installation position of the positioning screws, and personnel must squat to install, which is inconvenient and inefficient.

[0049] Based on the above problems, an embodiment of the present application provides a coating device, in which a coating die is provided to coat the slurry on the pole piece. The base is used to install the coating die to provide a stable support for the coating of the slurry. The die mounting mechanism is used to install the coating die. The mounting plate is connected to the coating die, and the sliding wheel drives the mounting plate and the coating die to move, so as to facilitate the movement of the coating die for installation. A guide rail groove is provided on the substrate to guide the moving direction of the guide rail and move the coating die to a preset position. An accommodating groove is provided to accommodate the sliding wheel, and the mounting plate is lowered onto the base to limit the position of the coating die, so as to facilitate the installation of the coating die. The above process realizes the rapid installation of the coating die, improves the installation efficiency of the coating die, and thus improves the efficiency of battery production.

[0050] Please refer to Figure 2 as well as Figure 3 , Figure 2 A schematic diagram of a top view of a coating device provided in some embodiments of the present application. Figure 3 This is a schematic diagram of the main structure of a coating device provided in some embodiments of the present application.

[0051] As shown in the figure, an embodiment of the present application provides a coating device 2, including a coating die 201, a base 203 and a die mounting mechanism 202. The coating die 201 is used to apply slurry to the pole piece 101, and the base 203 has a first surface 204. A guide groove 205 and a receiving groove 206 are provided on the first surface 204, and the guide groove 205 extends along the first direction X, and the base 203 is used to support the coating die 201. The die mounting mechanism 202 includes a sliding wheel 210 and a mounting plate 209, and the sliding wheel 210 is slidably connected to the guide groove 205 to drive the mounting plate 209 to move along the guide groove 205. The mounting plate 209 is provided with a mounting hole, and the mounting hole is used to mount the coating die 201 to the mounting plate 209. Among them, the sliding wheel 210 can move into the receiving groove 206 to drive the mounting plate 209 to move toward the base 203, and limit the movement of the mounting plate 209 relative to the base 203.

[0052] The base 203 is arranged toward the pole piece 101, and the position of the base 203 is relatively fixed, which can improve the stability of the coating process. The guide groove 205 can be a strip groove concavely arranged on the first surface 204, which can accommodate part of the sliding wheel 210 to slide therein to guide the moving direction of the sliding wheel 210. The accommodating groove 206 can be arranged in the guide groove 205, and the depth of the accommodating groove 206 concave along the thickness direction of the base 203 is greater than the guide groove 205. And the space of the accommodating groove 206 can accommodate a sliding wheel 210 to limit the movement of the sliding wheel 210. The mounting plate 209 has a flat surface for supporting and mounting the coating die head 201, thereby improving the stability of the movement and installation process.

[0053] The mounting plate 209 is provided with mounting holes, which can facilitate the coating die head 201 to be connected to the mounting plate 209 through a connecting piece. For example, the connecting piece can be a bolt or a rivet.

[0054] Optionally, a plurality of mounting holes are provided on the mounting plate 209. The plurality of mounting holes refer to holes of different widths and different intervals, which are used to install corresponding coating dies 201 to expand the application range of the mounting plate 209 and improve the convenience and efficiency of installation.

[0055] In the technical solution of the embodiment of the present application, a coating die 201 is provided to coat the slurry on the pole piece 101. The base 203 is used to install the coating die 201 and provide a stable support for the coating of the slurry. The die mounting mechanism 202 is used to install the coating die 201. The mounting plate 209 is connected to the coating die 201, and the sliding wheel 210 drives the mounting plate 209 and the coating die 201 to move, so as to facilitate the movement of the coating die 201 for installation. A guide rail groove 205 is provided on the substrate to guide the moving direction of the guide rail 227 and move the coating die 201 to a preset position. An accommodating groove 206 is provided to accommodate the sliding wheel 210, and the mounting plate 209 is lowered onto the base 203, and the position of the coating die 201 is limited, so as to facilitate the installation of the coating die 201. The above process realizes the rapid installation of the coating die 201, improves the installation efficiency of the coating die 201, and thus improves the efficiency of battery production.

[0056] The coating device of the present application is not limited to coating the pole pieces of battery cells with slurry, but can also be used to coat products that require a coating process. Exemplarily, the coating device can be used in the production process of electronic materials such as magnetic cards, printed circuit boards, and electronic chips. By precisely controlling the coating thickness and effect, the performance and quality of electronic materials can be ensured. The coating device can be used in the production process of packaging boxes, plastic bags, various types of paper, paper cards, labels, etc. The coating die head can evenly apply the coating to the surface of the material, thereby achieving good decorative effects and protective properties. The coating device can also be used in the dyeing and printing process of textile fabrics. By precisely controlling the coating amount and uniformity of the coating, the fabric can be given color and pattern.

[0057] In some embodiments of the present application, a position sensor 207 is disposed on the base 203 , and a sensing block 208 is disposed at the end of the mounting plate 209 along the first direction X. The position sensor 207 is used to detect the moving position of the sensing block 208 .

[0058] The position sensor 207 is a device that can detect and record the position change of an object. The position sensor 207 is set on the base 203 of the coating device 2 to monitor the moving position of the mounting plate 209 (and the coating die head 201 mounted thereon) in real time along the first direction X. Accurate installation can be achieved by presetting the target installation position. The sensing block 208 is used in conjunction with the position sensor 207. In the coating device 2, the sensing block 208 is set at the end of the mounting plate 209 along the first direction X. As the mounting plate 209 moves, the sensing block 208 will also move accordingly, and through interaction with the position sensor 207, its position information is fed back in real time to achieve accurate installation of the coating die head 201.

[0059] In the above structure, by providing the position sensor 207 to sense the position of the sensing block 208 , the position accuracy of the mounting plate 209 moving along the first direction X is improved, and the accuracy of the installation position of the coating die head 201 is further improved.

[0060] In some embodiments of the present application, the number of the sliding wheels 210 is two, and the two sliding wheels 210 are arranged along the second direction Y, and the second direction Y intersects with the first direction X. Optionally, the first direction X and the second direction Y are both arranged parallel to the first surface 204. The first direction X and the second direction Y are perpendicular to each other. Exemplarily, the first direction X is the length direction of the base 203, and the second direction Y is the width direction of the base 203.

[0061] Two guide rail grooves 205 are correspondingly provided. The guide rail groove 205 has a first end and a second end. The position sensor 207 is provided at the first end. From the first end to the second end, the cross-sectional width of the guide rail groove 205 gradually increases.

[0062] The two sliding wheels 210 are arranged along the second direction Y, and can provide support and guidance in the second direction Y intersecting with the first direction X. This design enables the mounting plate 209 to be flexibly moved on a two-dimensional plane, increasing the flexibility and application range of the coating device 2. The sliding wheels 210 can reduce friction and resistance, thereby ensuring the smoothness of the mounting plate 209 during movement. The two sliding wheels 210 are distributed on both sides of the mounting plate 209, which can more evenly distribute the weight and stress, and further reduce the bumps and jams during movement.

[0063] In order to match the two sliding wheels 210, two guide grooves 205 are also correspondingly provided to ensure that each sliding wheel 210 has a dedicated guide groove 205 for guidance, thereby improving the stability and accuracy of the moving process.

[0064] From the first end to the second end, the cross-sectional width of the guide groove 205 gradually increases. The second end may be the side where the mounting plate 209 enters the base 203. As the cross-sectional width decreases, the guide groove 205 can be smoother when the sliding wheel 210 just contacts the guide groove 205, thereby improving the efficiency of the assembly process. In addition, at the end (first end) of the guide groove 205, the smaller cross-sectional width can guide and limit the position of the sliding wheel 210, thereby improving the accuracy of the moving position of the mounting plate 209.

[0065] In the above structure, two sliding wheels 210 are provided to move on both sides of the mounting plate 209 along the second direction Y, thereby improving the smoothness of the moving process. In addition, the corresponding guide rail grooves 205 are provided to further improve the accuracy of the moving position.

[0066] like Figure 4 As shown, in some embodiments of the present application, the coating device 2 further includes a lifting mechanism 211, and the lifting mechanism 211 includes a lifting block 212 and a lifting cylinder 213. The lifting block 212 is disposed in the accommodating groove 206, and the lifting block 212 is used to support the sliding wheel 210. The lifting cylinder 213 is connected to the lifting block 212, and the lifting cylinder 213 is used to drive the lifting block 212 to move toward the sliding wheel 210.

[0067] Since the pole piece 101 has different widths, corresponding coating dies 201 of different specifications are required, and the coating process needs to replace different models of coating dies 201 according to the width of the pole piece 101. Exemplarily, the lengths of the coating die 201 are divided into three types: 750mm, 850mm, and 950mm. When the coating die 201 needs to be disassembled or replaced, the lifting mechanism 211 is activated to make the lifting block 212 flush with the first surface 204. In this way, the sliding wheel 210 can move smoothly on the lifting block 212, driving the mounting plate 209 and the coating die 201 to make precise position adjustments, thereby reducing the manpower and time required for disassembly and replacement of the coating die 201, and improving work efficiency.

[0068] In the above structure, by setting the lifting mechanism 211, the lifting block 212 is raised and lowered, and the lifting block 212 is flush with the first surface 204, which can facilitate the sliding wheel 210 to move on the base 203. The movement of the sliding wheel 210 can drive the mounting plate 209 and the coating die head 201 to move, thereby improving the efficiency of disassembly and replacement of the coating die head 201.

[0069] In some embodiments of the present application, a movable limit block 214 is further connected to the side of the lifting block 212 facing the sliding wheel 210, and the movable limit block 214 is arranged on both sides of the sliding wheel 210 along the second direction Y to limit the movement of the sliding wheel 210 along the second direction Y. Exemplarily, the longitudinal section of the movable limit block 214 is a U-shaped structure. The movable limit block 214 is arranged on the side of the lifting block 212 facing the sliding wheel 210, and is located on both sides of the sliding wheel 210 along the second direction Y. In the process of lifting and lowering the sliding wheel 210, the movable limit block 214 can provide an effective limiting effect.

[0070] Optionally, the movable limit block 214 is firmly connected to the lifting block 212 or the base 203 by mechanical connection, welding or other connection methods to ensure its stability.

[0071] In the above structure, by setting the movable limit block 214, the sliding wheel 210 is limited from moving along the second direction Y during the lifting or lowering process, thereby improving the stability of the lifting process and the position accuracy of the coating die head 201 installation.

[0072] like Figure 2 as well as Figure 5 As shown, in some embodiments of the present application, the coating device 2 further includes a gap adjustment mechanism 215, and the gap adjustment mechanism 215 includes a fixed plate 216, a moving cylinder 217, and a moving rod 218. The fixed plate 216 is disposed on the base 203, and the moving cylinder 217 is disposed on the fixed plate 216. The moving rod 218 is connected to the moving cylinder 217, and the moving rod 218 moves along the second direction Y under the drive of the moving cylinder 217, and the moving rod 218 is used to push the mounting plate 209 to move along the second direction Y.

[0073] The fixed plate 216 is firmly arranged on the base 203, and as a supporting base, it improves the stable connection and positioning of the moving cylinder 217 and the moving rod 218. The moving cylinder 217 is arranged on the fixed plate 216, and realizes its function by air pressure or hydraulic drive. The main function of the moving rod 218 is to push the mounting plate 209 to move along the second direction Y, so as to realize the precise adjustment of the installation position of the coating die 201. Through the push of the moving rod 218, the gap between the coating die 201 and the substrate or other components reaches the predetermined requirement, which reduces the difficulty of operation.

[0074] In the above structure, the fixed plate 216 can stably connect the moving cylinder 217 to improve the stability during the gap adjustment process. The moving cylinder 217 drives the moving rod 218 to move, providing reliable power for the moving rod 218 to push the mounting plate 209 and the coating die 201. The moving rod 218 moves along the second direction Y and applies power along the second direction Y to the mounting plate 209, thereby improving the accuracy and efficiency of adjusting the installation position of the coating die 201.

[0075] In some embodiments of the present application, the gap adjustment mechanism 215 also includes a limit plate 219 disposed on the base 203, and the limit plate 219 and the fixing plate 216 are arranged opposite to each other along the second direction Y. The limit plate 219 is used to limit the movement distance of the mounting plate 209 along the second direction Y.

[0076] The main function of the limit plate 219 is to limit the moving distance of the mounting plate 209 and the coating die head 201 along the second direction Y. When the mounting plate 209 moves along the second direction Y driven by the moving cylinder 217, the limit plate 219 prevents it from exceeding the preset maximum moving distance. Through this limiting effect, the limit plate 219 reduces the risk of the mounting plate 209 and the coating die head 201 deviating from the preset range due to excessive movement, thereby ensuring that the coating die head 201 can be accurately installed at the predetermined position.

[0077] In the above structure, the limit plate 219 is provided to limit the maximum movement distance of the mounting plate 209 and the coating die head 201, thereby reducing the risk of the mounting plate 209 and the coating die head 201 moving too far away from the preset range.

[0078] Optionally, the limit plate 219 is set at the edge of the preset position of the mounting plate 209 along the second direction Y. When the mounting plate 209 abuts against the limit plate 219, the preset position can be reached, thereby realizing rapid adjustment of the position of the mounting plate 209 in the second direction Y, thereby improving installation efficiency and positioning accuracy.

[0079] In some embodiments of the present application, a ball bearing 220 is connected to the end of the moving rod 218 facing the coating die head 201 , and the end of the ball bearing 220 facing the mounting plate 209 is slidably connected to the coating die head 201 .

[0080] The above structure, by arranging the ball 220 at the end of the moving rod 218, the ball 220 can rotate relative to the mounting plate 209, thereby reducing the friction and damage generated in the process of the moving rod 218 pushing the mounting plate 209 to move, and improving the smoothness of the moving process.

[0081] In some embodiments of the present application, a limiting groove 221 is provided on a side surface of the mounting plate 209 facing the moving rod 218 , and the limiting groove 221 is used to accommodate the ball 220 to limit the movement of the ball 220 relative to the mounting plate 209 .

[0082] Optionally, the width of the limiting groove 221 increases along the direction from the mounting plate 209 to the moving rod 218. Exemplarily, the cross-sectional shape of the limiting groove 221 is V-shaped. During the movement, the ball 220 is always controlled in the limiting groove 221 and does not move relative to the mounting plate 209 along the first direction X.

[0083] In the above structure, the moving direction of the ball 220 is limited by setting the limiting groove 221, thereby reducing the risk of the mounting plate 209 being offset during the movement and improving the accuracy of the moving position of the coating die head 201.

[0084] In some embodiments of the present application, the number of the gap adjustment mechanisms 215 is two, and the two gap adjustment mechanisms 215 are arranged along the first direction X at intervals.

[0085] In the above structure, the two adjustment mechanisms push the mounting plate 209 at the same time, and can simultaneously apply a driving force to both ends of the mounting plate 209 along the first direction X, thereby improving the efficiency and stability of the pushing process.

[0086] like Figure 6 As shown, in some embodiments of the present application, the coating device 2 further includes a magnetic plate 222 disposed on the base 203 , and the magnetic plate 222 has a magnetic attraction effect on the mounting plate 209 to limit the movement of the mounting plate 209 relative to the base 203 .

[0087] Exemplarily, the magnetic plate 222 may be an electromagnetic plate, and the mounting plate 209 may be a plate with a magnetic attraction effect. By applying a certain voltage, the electromagnetic plate can be made magnetic and attract the mounting plate 209, thereby forming a stable connection with the mounting plate 209. It is understandable that the magnetic plate 222 does not have a magnetic attraction force on the mounting plate 209 when it is not powered on, and the mounting plate 209 can move relative to the base 203, which is convenient for adjusting the installation position and improving the installation accuracy.

[0088] The above structure can eliminate the bolt connection structure between the mounting plate 209 and the base 203, thereby improving the convenience and efficiency of the installation process.

[0089] like Figure 7 As shown, in some embodiments of the present application, the coating device 2 further includes a moving mechanism 223, and the moving mechanism 223 includes a moving bracket 224 and a support plate 225. The moving bracket 224 is provided with a roller 226, and the support plate 225 is provided on the moving bracket 224. The support plate 225 is used to support the die mounting mechanism 202, and the moving bracket 224 is used to drive the die mounting mechanism 202 and the coating die 201 to move.

[0090] The design of the roller 226 enables the mobile bracket 224 to move on a horizontal or inclined track, thereby achieving accurate positioning of the die mounting mechanism 202 and the coating die 201. The support plate 225 is firmly set on the mobile bracket 224 to support the die mounting mechanism 202. The design of the support plate 225 takes into account the weight, shape and installation requirements of the die mounting mechanism 202, ensuring the stability and safety of the die mounting mechanism 202 during movement. Through the rolling of the mobile bracket 224, the support plate 225 and the die mounting mechanism 202 and the coating die 201 thereon can be easily moved.

[0091] In the above structure, the moving mechanism 223 is provided to move the die mounting mechanism 202 and the coating die 201, thereby improving the efficiency and convenience of die replacement.

[0092] Optionally, the moving mechanism 223 can be raised and lowered, and can lift or lower the mounting plate 209 and the coating die head 201 , so as to facilitate the movement and replacement of the coating die head 201 .

[0093] like Figure 8 As shown, in some embodiments of the present application, a guide rail 227 extending along the first direction X is provided on the support plate 225, the guide rail 227 is slidably connected to the sliding wheel 210, and a baffle 228 is provided at the end of the guide rail 227 along the first direction X, and the baffle 228 is used to limit the displacement of the sliding wheel 210 along the second direction Y.

[0094] The main function of the baffle 228 is to limit the displacement of the sliding wheel 210 relative to the support plate 225 along the second direction Y. Exemplarily, the first direction X may be the length direction of the support plate 225 , and the second direction Y may be the width direction of the support plate 225 .

[0095] The guide rail 227 is arranged to be connected with the guide rail groove 205, and the mounting plate 209 is continuously pushed to be pushed from the support plate 225 to the first surface 204. The baffle 228 is arranged to reduce the risk of the mounting plate 209 sliding off the support plate 225 during the movement, thereby improving the stability of the movement process.

[0096] In some optional embodiments, the coating device 2 includes a coating die 201, a base 203 and a die mounting mechanism 202. The coating die 201 is used to apply slurry to the pole piece 101, and the base 203 has a first surface 204. A guide groove 205 and a receiving groove 206 are provided on the first surface 204, and the guide groove 205 extends along the first direction X, and the base 203 is used to support the coating die 201. The die mounting mechanism 202 includes a sliding wheel 210 and a mounting plate 209, and the sliding wheel 210 is slidably connected to the guide groove 205 to drive the mounting plate 209 to move along the guide groove 205. The mounting plate 209 is provided with a mounting hole, and the mounting hole is used to mount the coating die 201 to the mounting plate 209. Among them, the sliding wheel 210 can move into the receiving groove 206 to drive the mounting plate 209 to move toward the base 203, and limit the movement of the mounting plate 209 relative to the base 203. A position sensor 207 is provided on the base 203, and a sensing block 208 is provided at the end of the mounting plate 209 along the first direction X. The position sensor 207 is used to detect the moving position of the sensing block 208. There are two sliding wheels 210, and the two sliding wheels 210 are arranged along the second direction Y, and the second direction Y intersects with the first direction X. Two guide grooves 205 are correspondingly provided, and the guide groove 205 has a first end and a second end. The position sensor 207 is arranged at the first end, and the cross-sectional width of the guide groove 205 gradually increases from the first end to the second end. The coating device 2 also includes a lifting mechanism 211, and the lifting mechanism 211 includes a lifting block 212 and a lifting cylinder 213. The lifting block 212 is arranged in the accommodating groove 206, and the lifting block 212 is used to support the sliding wheel 210. The lifting cylinder 213 is connected to the lifting block 212, and the lifting cylinder 213 is used to drive the lifting block 212 to move toward the sliding wheel 210. The coating device 2 also includes a gap adjustment mechanism 215, which includes a fixed plate 216, a moving cylinder 217 and a moving rod 218. The fixed plate 216 is arranged on the base 203, and the moving cylinder 217 is arranged on the fixed plate 216. The moving rod 218 is connected to the moving cylinder 217, and the moving rod 218 moves along the second direction Y under the drive of the moving cylinder 217. The moving rod 218 is used to push the mounting plate 209 to move along the second direction Y. The gap adjustment mechanism 215 also includes a limit plate 219 arranged on the base 203, and the limit plate 219 is arranged opposite to the fixed plate 216 along the second direction Y. The limit plate 219 is used to limit the moving distance of the mounting plate 209 along the second direction Y. The coating device 2 also includes a magnetic plate 222 arranged on the base 203, and the magnetic plate 222 has a magnetic attraction on the mounting plate 209 to limit the movement of the mounting plate 209 relative to the base 203. The coating device 2 further includes a moving mechanism 223 , and the moving mechanism 223 includes a moving bracket 224 and a supporting plate 225 . The moving bracket 224 is provided with a roller 226 , and the supporting plate 225 is provided on the moving bracket 224 .The support plate 225 is used to support the die mounting mechanism 202 , and the movable bracket 224 is used to drive the die mounting mechanism 202 and the coating die 201 to move.

[0097] The embodiment of the present application also provides a battery manufacturing device, which includes the coating device 2 in the above embodiment. A coating die 201 is provided to coat the slurry on the pole piece 101. The base 203 is used to install the coating die 201 to provide a stable support for the coating of the slurry. The die mounting mechanism 202 is used to replace different types of coating dies 201. The mounting plate 209 is connected to the coating die 201, and the sliding wheel 210 drives the mounting plate 209 and the coating die 201 to move, so as to facilitate the movement of the coating die 201 for replacement. A guide rail groove 205 is provided on the substrate to guide the moving direction of the guide rail 227 and move the coating die 201 to a preset position. A receiving groove 206 is provided to accommodate the sliding wheel 210, and the mounting plate 209 is lowered onto the base 203, and the position of the coating die 201 is limited, so as to facilitate the installation of the coating die 201. The above process realizes the rapid installation of the coating die head 201, improves the installation efficiency of the coating die head 201, and thus improves the efficiency of battery production.

[0098] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A coating device, characterized in that: include: A coating die head is used to apply slurry to the pole piece; A base having a first surface, a guide groove and a receiving groove are arranged on the first surface, the guide groove extends along a first direction, and the base is used to support the coating die head; The die head mounting mechanism comprises a sliding wheel and a mounting plate, wherein the sliding wheel is slidably connected to the guide rail groove to drive the mounting plate to move along the guide rail groove, and the mounting plate is provided with a mounting hole, and the mounting hole is used to mount the coating die head to the mounting plate; The sliding wheel can move into the accommodating groove to drive the mounting plate to move toward the base and limit the movement of the mounting plate relative to the base.

2. The coating device according to claim 1, characterized in that: A position sensor is provided on the base, and a sensing block is provided at the end of the mounting plate along the first direction. The position sensor is used to sense the moving position of the sensing block.

3. The coating device according to claim 2, characterized in that: There are two sliding wheels, and the two sliding wheels are arranged along the second direction, and the second direction intersects with the first direction. Two guide rail grooves are correspondingly arranged, and the guide rail groove has a first end and a second end. The position sensor is arranged at the first end, and the cross-sectional width of the guide rail groove gradually increases from the first end to the second end.

4. The coating device according to claim 3, characterized in that: The coating device further comprises a lifting mechanism, and the lifting mechanism comprises: A lifting block is disposed in the accommodating groove, and the lifting block is used to support the sliding wheel; A lifting cylinder is connected to the lifting block, and the lifting cylinder is used to drive the lifting block to move toward the sliding wheel.

5. The coating device according to claim 4, characterized in that: A movable limiting block is further connected to one side of the lifting block facing the sliding wheel. The movable limiting blocks are arranged on both sides of the sliding wheel along the second direction to limit the movement of the sliding wheel along the second direction.

6. The coating device according to claim 5, characterized in that: The coating device further includes a gap adjustment mechanism, and the gap adjustment mechanism includes: A fixing plate, arranged on the base; A moving cylinder, arranged on the fixed plate; A moving rod is connected to the moving cylinder. The moving rod moves along the second direction under the drive of the moving cylinder. The moving rod is used to push the mounting plate to move along the second direction.

7. The coating device according to claim 6, characterized in that: The gap adjustment mechanism further includes a limit plate disposed on the base, the limit plate and the fixing plate are arranged opposite to each other along the second direction, and the limit plate is used to limit the moving distance of the mounting plate along the second direction.

8. The coating device according to claim 6, characterized in that: The end of the moving rod facing the coating die head is connected with a ball, and the end of the ball facing the mounting plate is slidably connected with the coating die head.

9. The coating device according to claim 8, characterized in that: A limiting groove is provided on one side surface of the mounting plate facing the moving rod, and the limiting groove is used to accommodate the ball so as to limit the movement of the ball along the surface of the mounting plate.

10. The coating device according to claim 6, characterized in that: The number of the gap adjustment mechanisms is two, and the two gap adjustment mechanisms are arranged at intervals along the first direction.

11. The coating device according to any one of claims 1 to 10, characterized in that: The coating device further comprises a magnetic attraction plate arranged on the base, wherein the magnetic attraction plate has a magnetic attraction effect on the mounting plate to limit the movement of the mounting plate relative to the base.

12. The coating device according to any one of claims 3 to 10, characterized in that: The coating device further comprises a moving mechanism, and the moving mechanism comprises: A mobile support provided with rollers; A support plate is arranged on the movable bracket, the support plate is used to support the die mounting mechanism, and the movable bracket is used to drive the die mounting mechanism and the coating die to move.

13. The coating device according to claim 12, characterized in that: The support plate is provided with a guide rail extending along the first direction, the guide rail is slidably connected to the sliding wheel, and a baffle is provided at the end of the guide rail along the first direction, and the baffle is used to limit the displacement of the sliding wheel along the second direction.

14. A battery manufacturing device, characterized in that: Comprising a coating device as described in any one of claims 1-13.

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