Battery coating machine and battery production equipment

Abstract

The application relates to the technical field of battery production, and discloses a battery film coating machine and a battery production device, which comprise a visual detection device for detecting the shape of the side surface of a battery and a film pressing device for pressing a protective film onto the battery, wherein the film pressing device is connected with the visual detection device; the film pressing device comprises a lifting device, an adjusting device mounted at the output end of the lifting device, and a plurality of pressing rollers with different roller shapes which are installed in parallel on the adjusting device at intervals; the plurality of pressing rollers with different roller shapes comprise at least one concave roller, one flat roller and one convex roller; the adjusting device and the lifting device are used for adjusting corresponding pressing rollers to a film pressing station; and the pressing roller device adjusts the pressing rollers suitable for the battery to the film pressing station based on the side surface shape of the battery detected by the visual detection device. The battery film coating machine and the battery production device can improve the close degree of the protective film on the battery.

Description

Technical Field

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

[0002] The outer surface of the battery's aluminum casing is usually covered with a protective film. This protective film serves two purposes: protecting the battery and making it more aesthetically pleasing.

[0003] Existing battery coating machines include cylindrical rollers. Driven by a lifting device, the cylindrical rollers press the protective film onto the large surface of a battery being conveyed along a set direction, ensuring the film adheres well to the battery. However, this technology suffers from the following problems: due to manufacturing errors in the battery casing, the large surface of the battery may have a certain degree of concavity or convexity. In such cases, the cylindrical rollers cannot effectively press the protective film onto the large surface, leading to air bubbles between the battery and the protective film, thus reducing the tightness of the bond between them.

[0004] Therefore, it is necessary to design a battery coating machine and battery production equipment to improve the tightness of the adhesion between the protective film and the battery. Summary of the Invention

[0005] The purpose of this invention is to provide a battery coating machine and battery production equipment to improve the tightness of the adhesion between the protective film and the battery.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A battery coating machine includes a vision inspection device for detecting the shape of the side of a battery and a pressing device for pressing a protective film onto the battery, the pressing device being connected to the vision inspection device.

[0008] The film pressing device includes a lifting device, an adjusting device installed at the output end of the lifting device, and a plurality of pressure rollers of different shapes installed parallel to each other on the adjusting device at intervals. The plurality of pressure rollers of different shapes include at least one concave roller, one flat roller, and one convex roller. The adjusting device and the lifting device are used to adjust the corresponding pressure rollers to the film pressing position.

[0009] The pressure roller device adjusts the pressure roller adapted to the battery to the pressing station based on the side shape of the battery detected by the vision inspection device.

[0010] Optionally, the adjustment device includes a rotating frame and a first rotation drive device for driving the rotating frame to rotate around the center line of the rotating frame to a set rotation angle;

[0011] Several pressure rollers of different shapes are spaced apart on the rotating frame and arranged in a circumferential array around the center line of the rotating frame.

[0012] Optionally, the battery packing machine also includes a mounting frame with a vertical slide rail. The adjusting device is slidably connected to the vertical slide rail, and the lifting device is used to drive the adjusting device to slide along the vertical slide rail.

[0013] Optionally, the pressure roller includes a roller body rotatably mounted on the rotating frame and a rubber coating covering the outer periphery of the roller body.

[0014] Optionally, the battery packing machine further includes a conveyor roller conveyor, on both the top and bottom sides of which are provided with a pressing device, and the conveyor roller conveyor has a gap for the pressing roller on the pressing device on the bottom side of the conveyor roller conveyor to pass through.

[0015] Optionally, the battery coating machine further includes a protective film unwinding device, which includes an unwinding shaft for carrying the protective film roll and a second rotary drive device for driving the unwinding shaft to rotate and insert the protective film into the gap.

[0016] Optionally, the visual inspection device includes a first inspection camera for detecting the shape of the first top surface of the battery and a second inspection camera for detecting the shape of the second side surface of the battery;

[0017] The first detection camera is connected to the film pressing device located on one side of the top of the conveyor roller, and the second detection camera is connected to the film pressing device located on one side of the bottom of the conveyor roller.

[0018] Optionally, the battery coating machine further includes a pushing device for pushing the battery along the conveying direction of the conveying rollers;

[0019] The pushing device includes a push plate, a connecting rod connected to the push plate, a first translation device for driving the connecting rod to translate along the conveying direction of the conveying roller table, and a second translation device for moving the pushing device out of the conveying roller table.

[0020] Optionally, a support frame is provided on the telescopic shaft of the lifting device, and the adjusting device is installed on the support frame.

[0021] Optionally, the battery wrapping machine further includes a film stretching device; the film stretching device includes a film clamping device for clamping the end of the protective film released from the protective film unwinding device and a lifting module for driving the film clamping device to move up and down in the vertical direction;

[0022] During the pressing process, the lifting module applies a clamping force to the end of the protective film and gradually raises the protective film to keep it straight.

[0023] Optionally, the battery coating machine further includes a film cutting device that cuts the protective film when the pressing device presses the protective film at least partially onto a first side of the battery.

[0024] A battery production apparatus, comprising a battery coating machine as described in any of the preceding claims.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] In this embodiment, the shape of the side of the battery to be fitted with the protective film is detected by a vision inspection device. Then, based on the detected side shape, the pressure roller that best matches the shape of the side is adjusted to the film pressing station through the cooperation between the lifting device and the adjusting device to complete the film pressing process. This can significantly reduce the air bubbles between the protective film and the side of the battery, thereby significantly improving the adhesion between the protective film and the side of the battery. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] The structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which the present invention can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0029] Figure 1 This is a side view schematic diagram of a battery coating machine provided in an embodiment of the present invention;

[0030] Figure 2 This is a side view of a battery coating machine in the process of coating a battery, as provided in an embodiment of the present invention.

[0031] Figure 3 A three-dimensional structural diagram of a battery packing machine with a hidden visual inspection device provided in an embodiment of the present invention;

[0032] Figure 4This is a three-dimensional structural schematic diagram of the film pressing device provided in an embodiment of the present invention;

[0033] Figure 5 This is a front view schematic diagram of the film pressing device provided in an embodiment of the present invention;

[0034] Figure 6 This is a front view schematic diagram of a battery packing machine with a hidden visual inspection device provided in an embodiment of the present invention.

[0035] Illustrations: 1. Visual inspection device; 11. First inspection camera; 12. Second inspection camera; 2. Film pressing device; 201. Support frame; 21. Lifting device; 22. Adjustment device; 221. Rotating frame; 222. First rotation drive device; 23. Pressure roller; 3. Conveying roller track; 31. Gap; 4. Protective film unwinding device; 5. Pushing device; 51. Push plate; 52. Connecting rod; 6. Film clamping device; 100. Mounting frame; 200. Vertical slide rail. Detailed Implementation

[0036] To make the objectives, features, and advantages of this invention more apparent and understandable, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0037] In the description of this invention, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be a component positioned centrally in the connection.

[0038] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0039] Example 1

[0040] This invention provides a battery coating machine that can improve the adhesion between the battery and the protective film.

[0041] Please see Figures 1 to 6The battery coating machine includes a vision inspection device 1 and a film pressing device 2 connected to the vision inspection device 1. The connection can be wired or wireless; wireless connections can include Bluetooth, Wi-Fi, radio, optical communication, etc.

[0042] The visual inspection device 1 is used to detect the shape of the side of the battery, and the film pressing device 2 is used to press the protective film onto the battery, so that the protective film and the battery are in contact to achieve the effect of protecting the battery.

[0043] The film pressing device 2 includes a lifting device 21, an adjusting device 22 installed at the output end of the lifting device 21, and a plurality of pressure rollers 23 of different shapes installed parallel to each other on the adjusting device 22. The plurality of pressure rollers 23 of different shapes include at least one concave roller, one flat roller and one convex roller. The adjusting device 22 and the lifting device 21 are used to adjust the corresponding pressure rollers 23 to the film pressing position. The pressure roller 23 device adjusts the pressure rollers 23 adapted to the battery to the film pressing position based on the side shape of the battery detected by the vision inspection device 1.

[0044] For example, when the side of the battery is detected as a concave arc surface, the adjusting device 22 can rotate so that the convex roller that best fits the concave arc surface faces the battery, and the battery is pressed and coated using the convex roller, thereby achieving a higher degree of adhesion between the protective film and the battery. Alternatively, for example, when the side of the battery is detected as a convex arc surface, the adjusting device 22 can rotate so that the concave roller that fits the convex arc surface faces the battery, and the battery is pressed and coated using the concave roller. It should also be noted that the adjusting device 22 can be equipped with convex rollers of different convex curvatures to adapt to the coating needs of different concave arc surfaces; similarly, the adjusting device 22 can be equipped with concave rollers of different concave curvatures to adapt to the coating needs of different convex arc surfaces.

[0045] The battery coating machine in this embodiment can select a more suitable pressure roller 23 based on the shape of the battery, thereby improving the tightness of the adhesion between the protective film and the battery. In addition, when changing the battery to be coated with protective film, the position of the adjusting device 22 can be reasonably adjusted by the lifting device 21, thereby effectively adapting to the coating work of batteries with different thicknesses and sizes.

[0046] like Figure 2 In this embodiment, as the battery moves from right to left, the two adjusting devices 22 press the protective film onto the opposing first and second sides of the battery. It should be noted that the top surface of the battery is the first side, and the bottom surface is the second side.

[0047] Optionally, please refer to Figure 4 and Figure 5The adjustment device 22 includes a rotating frame 221 and a first rotation drive device 222 for driving the rotating frame 221 to rotate around the center line of the rotating frame 221 to a set rotation angle; a number of pressure rollers 23 with different roller shapes are installed at intervals on the rotating frame 221 and arranged in a circumferential array around the center line of the rotating frame 221.

[0048] In this embodiment, different pressure rollers 23 can be replaced by driving the first rotary drive device 222, eliminating the need to disassemble and install new pressure rollers as in the prior art, thus improving the efficiency of battery film application. Preferably, the first rotary drive device 222 is a servo motor that controls the rotation angle of the rotating frame 221, ensuring that each pressure roller 23 faces the battery and presses the protective film onto it, achieving film coating. It should also be noted that the pressure rollers 23 can rotate freely around their own center line.

[0049] Optionally, the battery packing machine also includes a mounting frame 100, on which a vertical slide rail 200 is provided. An adjusting device 22 is slidably connected to the vertical slide rail 200, and a lifting device 21 is used to drive the adjusting device 22 to slide along the vertical slide rail 200.

[0050] Specifically, the mounting bracket 100 mainly supports the various components, and the vertical slide rail 200 limits the movement direction of the adjustment device and makes the adjustment device more stable when moving along the set direction, so as to improve the tightness and uniformity of the film application.

[0051] Optionally, the pressure roller 23 includes a roller body rotatably mounted on the rotating frame 221 and an adhesive layer covering the outer periphery of the roller body. It should be noted that the adhesive layer has a certain elastic deformation capability, and its application further reduces air bubbles between the protective film and the battery, improving the adhesion between the battery surface and the protective film. This embodiment, through pressure rollers 23 with different roller shapes and adhesive layers on the outer periphery of the roller body, achieves a better effect in improving the adhesion between the battery surface and the protective film.

[0052] Optionally, the battery coating machine further includes a conveyor roller conveyor 3, with a pressing device 2 provided on both the top and bottom sides of the conveyor roller conveyor 3, and the conveyor roller conveyor 3 having a gap 31 for the pressing roller 23 on the pressing device 2 on the bottom side of the conveyor roller conveyor 3 to pass through. The pressing roller 23 on the bottom side of the conveyor roller conveyor 3 can extend into the gap, thereby pressing the protective film onto the bottom surface of the battery, that is, pressing the protective film onto the second side surface.

[0053] Optionally, the battery coating machine further includes a protective film unwinding device 4, which includes an unwinding shaft for carrying the protective film roll and a second rotary drive device for driving the unwinding shaft to rotate and insert the protective film into the gap 31. Figure 1 and Figure 2As shown, the protective film unwinding device 4 unwinds the protective film, and the distance between the lowest end of the protective film and the second side of the battery to be coated is equal to the length of the second side along the conveying direction of the conveying roller 3, so that the bottom surface of the battery can be completely covered by the protective film; as shown Figure 2 During the process of the pusher plate 51 pushing the battery to move from right to left, the first and second sides of the battery are covered with a protective film.

[0054] Optionally, the visual inspection device 1 includes a first inspection camera 11 for detecting the shape of a first side of the battery and a second inspection camera 12 for detecting the shape of a second side of the battery; the first inspection camera 11 is connected to a film pressing device 2 located on the top side of the conveyor roller 3, and the second inspection camera 12 is connected to a film pressing device 2 located on the bottom side of the conveyor roller 3.

[0055] The two film-pressing devices located on both sides of the conveyor roller 3 can better adapt to the film coating of batteries of different shapes. For example, if the first side of the battery is a concave arc surface and the second side of the battery is a convex arc surface, then the first side is pressed and coated with a convex roller, and the second side is pressed and coated with a concave roller.

[0056] Optionally, the battery coating machine further includes a pushing device 5 for pushing the battery along the conveying direction of the conveyor roller 3; the pushing device 5 includes a push plate 51, a connecting rod 52 connecting the push plate 51, a first translation device for driving the connecting rod 52 to move horizontally along the conveying direction of the conveyor roller 3, and a second translation device for moving the pushing device 5 out of the conveyor roller 3. The second translation device can move horizontally out of the conveyor roller 3, or drive the first translation device to move up and down to avoid the battery in transit, as long as the second translation device can ensure that the pushing device 5 does not obstruct the battery from being conveyed along the conveyor roller 3.

[0057] Optionally, a support frame 201 is provided on the telescopic shaft of the lifting device 21, and the adjusting device 22 is installed on the support frame 201.

[0058] Optionally, the battery wrapping machine also includes a film stretching device; the film stretching device includes a film clamping device 6 for clamping the end of the protective film released by the protective film unwinding device 4 and a lifting module for driving the film clamping device 6 to move up and down in the vertical direction, wherein the lifting module is not shown in the figure, and the lifting module can be a cylinder, an electronic telescopic device, etc. Figure 1 , Figure 2The installation position of the film clamping device 6 is indicated. It should be noted that this embodiment does not limit the specific structure of the film clamping device 6, as long as it can clamp the end of the protective film. Preferably, the film clamping device 6 includes a first clamping rod, a second clamping rod, and a finger cylinder. The first clamping rod is parallel to the second clamping rod, and the first and second clamping rods move towards each other under the drive of the finger cylinder to clamp the end of the protective film. After the film clamping device 6 clamps the end of the protective film, the lifting module drives the film clamping device 6 to rise and fall to keep the protective film flat, thereby facilitating improved film application quality.

[0059] Specifically, the clamping device 6 clamps the tail end of the protective film and, driven by the lifting module, pulls the tail end of the protective film downward, thereby moving the tail end of the protective film to a suitable height. Figure 2 As shown, during the pressing process, the battery gradually moves from right to left. The pressing device 2, located on one side of the bottom of the conveyor roller 3, continuously presses the protective film onto the second side of the battery. The clamping device 6, driven by the lifting module, rises along with the end of the protective film. The clamping device 6 applies a pulling force to the tail end of the protective film to keep the portion of the protective film located on one side of the bottom of the conveyor roller 3 flat.

[0060] It should be further noted that the lifting module applies clamping force to the tail end of the protective film through the film clamping device 6 to keep the protective film straight, which effectively improves the application effect of the protective film on the second side.

[0061] It should also be noted that the lifting module can also be used to lower the film clamping device 6 to pull the end of the protective film down to a suitable position, so that the length of the protective film can completely cover the second side of the battery.

[0062] Optionally, the battery coating machine further includes a film-cutting device (not shown), which cuts the protective film when the pressing device 2 has at least partially pressed the protective film onto the first side of the battery. It should be noted that cutting the protective film after the pressing device 2 has at least partially pressed it onto the first side of the battery improves the coating quality and reduces the possibility of wrinkles forming on the first side. Preferably, the film-cutting device cuts the protective film when it completely covers the first side. Optionally, the film-cutting device includes a cutter and a translation device for driving the cutter to translate and cut the protective film.

[0063] Example 2

[0064] This embodiment provides a battery production equipment, including a battery coating machine as described in any one of Embodiment 1.

[0065] Battery production equipment may also include other components, such as loading robots, unloading robots, etc.

[0066] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0067] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

[0068] The above-described embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A battery coating machine, characterized in that, It includes a visual inspection device (1) for detecting the shape of the side of the battery and a film pressing device (2) for pressing a protective film onto the battery, the film pressing device (2) being connected to the visual inspection device (1); The film pressing device (2) includes a lifting device (21), an adjusting device (22) installed at the output end of the lifting device (21), and a plurality of pressure rollers (23) of different shapes installed parallel to each other on the adjusting device (22). The plurality of pressure rollers (23) of different shapes include at least one concave roller, one flat roller, and one convex roller. The adjusting device (22) and the lifting device (21) are used to adjust the corresponding pressure rollers (23) to the film pressing position. The pressure roller (23) device adjusts the pressure roller (23) adapted to the battery to the pressing station based on the side shape of the battery detected by the vision inspection device (1).

2. The battery coating machine according to claim 1, characterized in that, The adjustment device (22) includes a rotating frame (221) and a first rotation drive device (222) for driving the rotating frame (221) to rotate around the center line of the rotating frame (221) to a set rotation angle; Several pressure rollers (23) of different shapes are spaced apart on the rotating frame (221) and arranged in a circumferential array around the center line of the rotating frame (221).

3. The battery coating machine according to claim 1, characterized in that, It also includes a mounting bracket (100) on which a vertical slide rail (200) is provided. The adjusting device (22) is slidably connected to the vertical slide rail (200). The lifting device (21) is used to drive the adjusting device (22) to slide along the vertical slide rail (200).

4. The battery packing machine according to claim 2, characterized in that, The pressure roller (23) includes a roller body that is rotatably mounted on the rotating frame (221) and a rubber coating layer covering the outer periphery of the roller body.

5. The battery coating machine according to claim 1, characterized in that, It also includes a conveyor roller (3), on which a pressing device (2) is provided on both the top and bottom sides, and the conveyor roller (3) has a gap (31) through which the pressing roller (23) on the bottom side of the conveyor roller (3) passes.

6. The battery packing machine according to claim 5, characterized in that, It also includes a protective film unwinding device (4), which includes an unwinding shaft for carrying the protective film roll and a second rotary drive device for driving the unwinding shaft to rotate to put the protective film into the gap (31).

7. The battery coating machine according to claim 5, characterized in that, The visual inspection device (1) includes a first inspection camera (11) for detecting the shape of a first side of the battery and a second inspection camera (12) for detecting the shape of a second side of the battery; The first detection camera (11) is connected to the film pressing device (2) located on the top side of the conveyor roller (3), and the second detection camera (12) is connected to the film pressing device (2) located on the bottom side of the conveyor roller (3).

8. The battery coating machine according to claim 5, characterized in that, It also includes a pushing device (5) for pushing the battery along the conveying direction of the conveying roller (3); The pushing device (5) includes a push plate (51), a connecting rod (52) connected to the push plate (51), a first translation device for driving the connecting rod (52) to translate along the conveying direction of the conveying roller table (3), and a second translation device for moving the pushing device (5) out of the conveying roller table (3).

9. The battery packing machine according to claim 5, characterized in that, The lifting device (21) has a support frame (201) on its telescopic shaft, and the adjusting device (22) is installed on the support frame (201).

10. The battery packing machine according to claim 6, characterized in that, It also includes a film pulling device; the film pulling device includes a film clamping device (6) for clamping the end of the protective film released by the protective film unwinding device (4) and a lifting module for driving the film clamping device (6) to move up and down in the vertical direction.

11. The battery coating machine according to claim 1, characterized in that, It also includes a film cutting device that cuts the protective film when the film pressing device (2) presses the protective film at least partially onto the first side of the battery.

12. A battery manufacturing apparatus, characterized in that, It includes a battery coating machine as described in any one of claims 1 to 11.

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