A pre-sticking film mechanism and a battery film sticking device

Abstract

The utility model provides a kind of pre-sticking film mechanism and battery film sticking equipment, pre-sticking film mechanism includes manipulator body and with the suction film subassembly of manipulator body connection, pre-positioning component;Suction film subassembly includes the vacuum suction plate for suction film;Pre-positioning component includes drive cylinder and with the drive end connection of drive cylinder Pressure film block;In the adsorption side of vacuum suction plate, vacuum suction plate and pressure film block jointly form film positioning area;Drive cylinder drives pressure film block to move along the direction of adsorption side to battery, to make the film portion adhered on battery by vacuum suction plate suction;Pre-sticking film mechanism is preliminarily positioned by the cooperation of suction film subassembly and pre-positioning component, and the rest part of film falls to the surface of battery along with the vacuum release of vacuum suction plate, it is helpful to promote bubble discharge while reducing wrinkle in subsequent rolling process, to improve the quality of film sticking.

Description

Technical Field

[0001] This utility model belongs to the field of battery technology, specifically relating to a pre-applied film mechanism and a battery film applicator. Background Technology

[0002] In recent years, the new energy industry has developed rapidly. Lithium batteries, with their superior performance such as high energy density and long cycle life, have been widely used in many fields such as consumer electronics, new energy vehicles, and energy storage, leading to a rapid expansion in market demand. However, as production continues to climb, ensuring the stability and reliability of battery quality while increasing production capacity has become a critical issue that urgently needs to be addressed in the industry's development.

[0003] For example, in the field of battery assembly, the process of applying a blue film is often involved. The blue film acts as an insulator in the battery, preventing direct contact between the battery's polarized components and avoiding safety hazards such as overheating and fire. Therefore, the effectiveness of the blue film application is of great significance to battery safety.

[0004] In existing technologies, automated equipment for applying protective films has become a core step in battery production, offering higher efficiency compared to traditional manual methods. However, in practical applications, it has been found that automatically applied blue films are prone to wrinkles and even air bubbles, affecting product quality.

[0005] Therefore, improving the quality of automated film application to further enhance the efficiency of automated production is a problem that urgently needs to be solved by professionals in related fields. Summary of the Invention

[0006] To address the shortcomings of the prior art, this utility model provides a pre-applied film mechanism and a battery film applicator. The pre-applied film mechanism, through the cooperation of a pre-positioning component and a film suction component, pre-positions and applies a portion of the blue film to the battery cell, thereby reducing wrinkles and bubbles that occur when the blue film is fully adhered to the battery cell, thus improving the quality of the film application.

[0007] The technical effects to be achieved by this utility model are realized through the following technical aspects:

[0008] This utility model provides a pre-applied film mechanism, including a robotic arm body and a film suction component and a pre-positioning component connected to the robotic arm body;

[0009] The film suction assembly includes a vacuum suction plate for film suction;

[0010] The pre-positioning component includes a driving cylinder and a pressure film block connected to the driving end of the driving cylinder; on the adsorption side of the vacuum suction plate, the vacuum suction plate and the pressure film block together form a film positioning area;

[0011] The driving cylinder drives the film pressing block to move along the adsorption side towards the battery cell, so that the adsorbed film portion is attached to the battery cell.

[0012] In some embodiments, the pressing blocks are arranged side by side in the horizontal direction on one side of the vacuum suction plate, and the pressing blocks move in the vertical direction under the drive of the driving cylinder.

[0013] In some embodiments, a connecting assembly is also included, through which both the vacuum suction plate and the drive cylinder are connected to the robot body.

[0014] Secondly, this utility model also provides a battery film application device, including any of the pre-applying film mechanisms described above.

[0015] In some embodiments, the battery film applicator further includes a label feeding mechanism and an adhesive applicator located downstream of the pre-applying mechanism; the adhesive applicator includes an adhesive applicator drive assembly and a roller assembly for rolling the film, the adhesive applicator drive assembly being driven and connected to the roller assembly.

[0016] In some embodiments, the membrane adsorbed by the vacuum suction plate includes a membrane positioning portion pressurized by the membrane pressing block, and the roller assembly is located near the membrane positioning portion.

[0017] In some embodiments, the battery film applicator further includes a rotating disk, a visual positioning mechanism, and an adhesive detection mechanism;

[0018] The rotating disk is equipped with several battery cell carriers, and the visual positioning mechanism, the pre-film application mechanism, the adhesive application mechanism, and the adhesive application detection mechanism are arranged sequentially along the rotating disk.

[0019] In some embodiments, a secondary positioning mechanism for positioning the battery cell is further provided upstream of the visual positioning mechanism along the direction of the rotating disk.

[0020] In some embodiments, the battery coating equipment further includes a loading mechanism for transporting battery cells to the battery cell carrier, the loading mechanism being located upstream of the visual positioning mechanism.

[0021] In some embodiments, the battery film application equipment further includes a feeding mechanism for transporting film-coated battery cells, the feeding mechanism being located downstream of the adhesive application detection mechanism;

[0022] The feeding mechanism includes a feeding and handling component, an NG conveying component, and a material tray turnover module.

[0023] In summary, this utility model has at least the following advantages:

[0024] 1. This utility model provides a pre-applied film mechanism that, through the cooperation of a film suction component and a pre-positioning component, achieves partial initial positioning and attachment of the blue film onto the battery cell. This helps reduce wrinkles and bubbles formed when the blue film is attached to the battery cell, thereby improving the quality of the film application. Specifically, after the film suction component adsorbs the blue film, the driving cylinder of the pre-positioning component drives the film pressing block to move along the suction side of the vacuum suction plate towards the battery cell, so that the film adsorbed by the vacuum suction plate is partially attached to the battery cell. Subsequently, the vacuum suction plate releases the vacuum, allowing the portion of the blue film not attached to the battery cell to fall onto the battery cell surface. Since the blue film is not completely attached to the battery cell surface at this time, this structure can effectively promote the removal of bubbles in the subsequent rolling process, while reducing the generation of wrinkles, thereby improving the quality and efficiency of the film application.

[0025] 2. The battery film application equipment provided by this utility model includes the aforementioned pre-applying film mechanism, which has good film application effect and efficiency. Furthermore, the battery film application equipment further increases the adhesion between the blue film and the battery cell through an adhesive applicator, removes wrinkles and air bubbles generated during blue film application, improves the accuracy of film application through a visual positioning mechanism, and ensures film application quality by detecting the film application effect through an adhesive detection mechanism. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the pre-applied film mechanism provided in Embodiment 1 of this utility model;

[0027] Figure 2 This utility model Figure 1 A magnified view of part A in the middle;

[0028] Figure 3 This is a schematic diagram of the battery film application device provided in Embodiment 2 of this utility model;

[0029] Figure 4 This is a schematic diagram of the adhesive application mechanism provided in Embodiment 2 of this utility model;

[0030] Figure 5 This is a schematic diagram of the secondary positioning mechanism provided in Embodiment 2 of this utility model;

[0031] Figure 6 This is a schematic diagram of the battery film application device provided in Embodiment 3 of this utility model.

[0032] Marked in the image:

[0033] 100. Pre-applying film mechanism; 110. Robotic arm body; 120. Film suction assembly; 121. Vacuum suction plate; 130. Pre-positioning assembly; 131. Drive cylinder; 132. Film pressing block; 140. Connecting assembly;

[0034] 200. Bidding and dispatching agency;

[0035] 300. Glue application mechanism; 310. Glue application drive assembly; 320. Roller assembly;

[0036] 400. Rotary turntable; 410. Cell carrier;

[0037] 500. Visual positioning mechanism;

[0038] 600. Adhesive application testing agency;

[0039] 700. Secondary positioning mechanism; 710. Side-push positioning cylinder; 720. Servo component; 730. Battery cell positioning area;

[0040] 800. Feeding mechanism; 810. First feeding and handling assembly; 820. Feeding conveyor belt; 830. Manual inspection window; 840. Second feeding and handling assembly;

[0041] 900. Feeding mechanism; 910. Feeding and handling assembly; 920. NG conveying assembly; 930. Full tray discharge hopper; 940. Empty tray feeding hopper; 950. Empty tray handling assembly. Detailed Implementation

[0042] To facilitate understanding of the present invention, a more comprehensive description will be given below in conjunction with the accompanying drawings and specific embodiments. The drawings illustrate preferred embodiments of the invention. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of the invention.

[0043] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0044] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are only for the convenience of describing this 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 this invention. In addition, the terms "first," "second," "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0045] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0046] For ease of understanding, it should be noted that the X-axis in the graph represents the horizontal direction, the Y-axis represents the vertical direction, and the Z-axis represents the vertical direction.

[0047] Example 1:

[0048] like Figures 1 to 2 As shown, this embodiment provides a pre-applied film mechanism 100, which optimizes the film application effect through the cooperation of the pre-positioning component 130 and the film suction component 120.

[0049] Specifically, the pre-applying film mechanism 100 includes a robotic arm body 110, a film suction assembly 120, and a pre-positioning assembly 130. The robotic arm body 110 can be a multi-joint robotic arm. In this embodiment, the robotic arm body 110 is an axis robot assembly used to drive the movement of the film suction assembly 120 and the pre-positioning assembly 130, achieving precise operation. The film suction assembly 120 and the pre-positioning assembly 130 are connected to the end of the robotic arm body 110 and perform execution functions.

[0050] The film suction assembly 120 includes a vacuum suction plate 121, one side of which is connected to the robot body 110, and the other side is provided with several vacuum holes for adsorbing blue film. The pre-positioning assembly 130 includes a drive cylinder 131 and a film pressing block 132 connected to the drive end of the drive cylinder 131. On the suction side of the vacuum suction plate 121, the vacuum suction plate 121 and the film pressing block 132 together form a film positioning area. That is, after the blue film is adsorbed by the vacuum suction plate 121, part of the blue film covers the bottom of the vacuum suction plate 121, and another part covers the bottom of the film pressing block 132, so that the film pressing block 132 can apply pressure to the part of the blue film.

[0051] During operation, the drive cylinder 131 drives the pressure block 132, causing it to move along the adsorption side towards the battery cell until a portion of the blue film is attached to the cell. Subsequently, the vacuum suction plate 121 releases the vacuum, allowing the unattached portion of the blue film to fall and settle on the surface of the battery cell. At this point, the blue film is positioned and adhered to the battery cell surface, while the remaining portion is not completely and tightly bonded. This prevents wrinkles from forming during the subsequent rolling process and helps to completely remove air bubbles between the blue film and the battery cell, thereby improving the quality and efficiency of the film application.

[0052] In this embodiment, the film pressing block 132 and the vacuum suction plate 121 are arranged side by side, with the adsorption side located below the vacuum suction plate 121 and the film pressing block 132. Initially, the lower planes of the vacuum suction plate 121 and the film pressing block 132 are at the same horizontal plane. During operation, the film pressing block 132 continues to move downward under the driving action of the drive cylinder 131 to position and attach a portion of the blue film to the surface of the battery cell.

[0053] The blue film consists of a blue film body and a blue film head, with the blue film head being one end of the blue film. Typically, the blue film head extends from the blue film body and has a positioning ear at this end. In this embodiment, the blue film body is adsorbed below the vacuum suction plate 121, and the blue film head is located below the pressing block 132. The pressing block 132 acts on the blue film head, attaching it to the battery cell. The pre-positioning assembly 130, by fixing the blue film head, helps to ensure the blue film falls evenly onto the battery cell surface, thereby reducing wrinkles. In this embodiment, the blue film head is a film positioning part.

[0054] Furthermore, the pre-applying film mechanism 100 also includes a connecting assembly 140, through which the vacuum suction plate 121 and the drive cylinder 131 are connected to the robot body 110. In this embodiment, the connecting assembly 140 includes a connecting plate connecting the vacuum suction plate 121 and the drive cylinder 131, and a mounting block between the connecting plate and the robot body 110. It is understood that in some other embodiments, the structure of the connecting assembly 140 can be improved as needed.

[0055] Example 2:

[0056] This embodiment provides a battery film application device based on Embodiment 1. For example... Figures 3 to 5 As shown, the battery film application equipment includes the pre-applying film mechanism 100 provided in the embodiment.

[0057] In this embodiment, the battery film application equipment also includes a label dispensing feeder mechanism 200 and an adhesive application mechanism 300 located downstream of the pre-applying film mechanism 100. The label dispensing feeder mechanism 200 provides a blue film compatible with the battery cell. The vacuum suction plate 121 moves under the action of the robotic arm body 110 and picks up the blue film from the label dispensing feeder mechanism 200. After the pre-applying film mechanism 100 initially positions and attaches the blue film to the battery cell, the battery cell moves to the station where the adhesive application mechanism 300 is located.

[0058] The adhesive application mechanism 300 includes an adhesive application drive assembly 310 and a roller assembly 320 for rolling and applying the film. The drive end of the adhesive application drive assembly 310 is connected to the roller assembly 320. The adhesive application drive assembly 310 can be a linear motor, servo motor, or cylinder, or other structure with a driving function. The drive end of the adhesive application drive assembly 310 is connected to the roller assembly 320 to drive the roller assembly 320 to move. The roller assembly 320 rolls and presses the blue film on the surface of the battery cell to ensure that the blue film adheres tightly to the surface of the battery cell, removes air bubbles between the blue film and the battery cell, and reduces wrinkles caused by the blue film, so that the blue film is flatly attached to the surface of the battery cell. Preferably, the roller assembly 320 is located near the film positioning part, that is, the adhesive application drive assembly 310 drives the roller assembly 320 to roll from the head of the blue film to ensure that air bubbles are smoothly removed.

[0059] To improve automation, the battery coating equipment also includes a rotating disk 400, on which several cell carriers 410 are mounted. Along the rotation direction of the rotating disk 400, a vision positioning mechanism 500, a pre-coating mechanism 100, an adhesive application mechanism 300, and an adhesive application detection mechanism 600 are arranged sequentially. Uncoated cells are placed on the cell carriers 410. The rotating disk 400 rotates, and the vision positioning mechanism 500 determines the position and image information of the cells, which is then transmitted to the pre-coating mechanism 100. When the cells reach the pre-coating mechanism 100, it performs initial coating. The cells then move to the adhesive application mechanism 300, where it rolls the cells and the blue film to ensure complete adhesion of the blue film to the cell surface. The rotating disk 400 continues to rotate, and the cells move to the adhesive application detection mechanism 600, which detects and determines whether the coating effect of the cells is acceptable. Both the visual positioning mechanism 500 and the adhesive application detection mechanism 600 can use a CCD vision system.

[0060] Furthermore, upstream of the visual positioning mechanism 500 along the direction of the rotating disk 400, a secondary positioning mechanism 700 for positioning the battery cell is also provided. The secondary positioning mechanism 700 includes a side-push positioning cylinder 710 and a servo component 720. The side-push positioning cylinders 710 are symmetrically arranged, and both the drive ends of the servo component 720 and the side-push positioning cylinders 710 are provided with positioning blocks. The positioning blocks surround and form a battery cell positioning area 730, which is used to accurately correct and calibrate the position of the battery cell so as to accurately place the battery cell into the battery cell carrier 410 of the rotating disk 400.

[0061] Example 3:

[0062] This embodiment further optimizes the battery film application equipment based on Embodiment 2. Please refer to... Figure 6 .

[0063] The battery coating equipment also includes a loading mechanism 800 for transporting battery cells to a battery cell carrier 410, located upstream of the vision positioning mechanism 500. The loading mechanism 800 includes a first loading and transporting assembly 810, a feeding conveyor belt 820, and a second loading and transporting assembly 840. The first loading and transporting assembly 810 picks up the battery cells from the upstream equipment and places them on the feeding conveyor belt 820. The second loading and transporting assembly 840 transports the battery cells from the feeding conveyor belt 820 to a secondary positioning mechanism 700 for positioning calibration, and then transports the battery cells to the battery cell carrier 410 on the rotating disk 400. The battery cell carrier 410 can be a clamp or a vacuum bearing. In addition, the feeding conveyor belt 820 can also be equipped with a manual inspection window 830 for manual inspection of uncoated battery cells, timely rejection of unqualified products, and prevention of unqualified battery cells from flowing into the subsequent coating process, thereby saving the ineffective consumption of coating materials and reducing the secondary rework cost caused by problems with the battery cells themselves after coating.

[0064] The battery coating equipment also includes a feeding mechanism 900 for transporting coated battery cells, located downstream of the adhesive coating detection mechanism 600. The feeding mechanism 900 includes a feeding and transporting component 910, an NG conveying component 920, and a tray turnover module. The tray turnover module includes a full tray discharge hopper 930, an empty tray supply hopper 940, and an empty tray transporting component 950. After the coated battery cells are inspected by the adhesive coating detection mechanism 600, they are classified as qualified or unqualified. The feeding and transporting component 910 transports unqualified cells to the NG conveying component 920 for recycling, and places qualified cells into trays for loading. Full trays are discharged through the full tray discharge hopper 930. The empty tray transporting component 950 picks up empty trays from the empty tray supply hopper 940 and feeds them to the feeding and transporting component 910 for loading, thus completing the sorting of coated battery cells.

[0065] The above description is merely an example and illustration of the structure of this invention, and while the description is specific and detailed, it should not be construed as limiting the scope of this invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this invention, and these obvious substitutions all fall within the protection scope of this invention.

Claims

1. A pre-applied film mechanism, characterized in that, The pre-applied film mechanism (100) includes a robotic arm body (110) and a film suction assembly (120) and a pre-positioning assembly (130) connected to the robotic arm body (110); The film suction assembly (120) includes a vacuum suction plate (121) for film suction; The pre-positioning component (130) includes a drive cylinder (131) and a pressure block (132) connected to the drive end of the drive cylinder (131); On the adsorption side of the vacuum suction plate (121), the vacuum suction plate (121) and the film pressing block (132) together form a film positioning area; The driving cylinder (131) drives the pressure block (132) to move along the adsorption side to the battery cell, so that the adsorbed membrane part is attached to the battery cell.

2. The pre-applied film mechanism according to claim 1, characterized in that, The pressing block (132) is arranged side by side with the vacuum suction plate (121), and the pressing block (132) moves vertically under the drive of the driving cylinder (131).

3. The pre-applied film mechanism according to claim 1, characterized in that, It also includes a connecting assembly (140), through which the vacuum suction plate (121) and the drive cylinder (131) are connected to the robot body (110).

4. A battery film application device, characterized in that, Includes a pre-applied film mechanism (100) as described in any one of claims 1 to 3.

5. The battery film application equipment according to claim 4, characterized in that, The battery film applicator also includes a label feeding mechanism (200) and an adhesive applicator (300) located downstream of the pre-applying film mechanism (100); the adhesive applicator (300) includes an adhesive applicator drive assembly (310) and a roller assembly (320) for rolling the film, the adhesive applicator drive assembly (310) being driven to the roller assembly (320).

6. The battery film application equipment according to claim 5, characterized in that, The membrane adsorbed by the vacuum suction plate (121) includes a membrane positioning part that is pressed by the membrane pressing block (132), and the roller assembly (320) is close to the membrane positioning part.

7. The battery film application equipment according to claim 5, characterized in that, The battery film application equipment also includes a rotating disk (400), a visual positioning mechanism (500), and an adhesive application detection mechanism (600); The rotating disk (400) is provided with a plurality of battery cell carriers (410), and the visual positioning mechanism (500), the pre-film application mechanism (100), the adhesive application mechanism (300) and the adhesive application detection mechanism (600) are arranged sequentially along the rotating disk (400).

8. The battery film application equipment according to claim 7, characterized in that, Along the direction of the rotating disk (400), a secondary positioning mechanism (700) for positioning the battery cell is also provided upstream of the visual positioning mechanism (500).

9. The battery film application equipment according to claim 8, characterized in that, The battery coating equipment also includes a loading mechanism (800) for transporting battery cells to the battery cell carrier (410), the loading mechanism (800) being located upstream of the visual positioning mechanism (500).

10. The battery film application device according to claim 8, characterized in that, The battery film application equipment also includes a feeding mechanism (900) for transporting the film-applied battery cells, the feeding mechanism (900) being located downstream of the adhesive application detection mechanism (600); The unloading mechanism (900) includes an unloading and handling component (910), an NG conveying component (920), and a material tray turnover module.

Images