Lithium battery film pasting and feeding suction cup

Abstract

The utility model discloses a lithium battery film pasting and feeding suction cup, and relates to the field of lithium battery production equipment. Comprising a sucker base body, a sealing cover plate, a sealing ring, a silica gel pad and a protective film, a vacuum chamber is arranged in the sucker base body, a sealing groove is formed around the vacuum chamber, the sealing ring is arranged in the sealing groove, a vacuum hole is formed in the bottom of the sucker base body, the sealing cover plate is arranged on the sucker base body, and a vacuum pipe inlet is formed in the sealing cover plate. A protective film is arranged outside the suction cup base body through an anti-skid silica gel pad. The automatic film pasting device is reasonable in structural design, and the quality and efficiency of the automatic film pasting technology are greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery production equipment, specifically to a lithium battery film feeding suction cup. Background Technology

[0002] With the continuous development of lithium battery technology, pouch lithium batteries are increasingly widely used in new energy vehicles, consumer electronics, and other fields due to their advantages such as light weight, high plasticity, and high energy density. Pouch batteries typically use an aluminum-plastic film as the outer shell, and several functional protective films (such as dustproof films, insulating films, or other protective films) need to be laminated inside the battery to enhance its safety performance and meet the requirements of the operating environment. In the pouch battery lamination process, a robotic arm carrying a suction cup is usually required to complete multiple operations such as loading the protective film, peeling off the core paper, positioning, and lamination. Because the protective film material is extremely thin (e.g., only about 0.2 mm thick), the following problems often occur during the adsorption and transfer process:

[0003] 1. Bubble generation

[0004] When the protective film comes into contact with the suction cup surface, uneven suction or an uneven film surface can easily cause air bubbles to form between the film and the suction cup or between the film and the battery surface, leading to a decrease in film application quality. These air bubbles not only affect the appearance of the finished product but can also cause uneven stress within the battery, thus affecting its reliability.

[0005] 2. Membrane wrinkling

[0006] If the suction cup is not properly positioned, forceed, or released during the transfer process, local wrinkles or deformation of the protective film can easily occur, preventing it from adhering completely flat to the battery surface and affecting the overall performance and appearance quality of the battery.

[0007] 3. Vacuum leakage or poor adsorption

[0008] The adsorption of thin film materials onto the suction cup requires a high degree of vacuum. If the suction cup structure is poorly designed or poorly sealed, air leakage may occur during the adsorption process, preventing the protective film from adsorbing firmly. In severe cases, this can lead to the inability to complete the feeding or film application process, resulting in a decrease in production efficiency.

[0009] 4. The complexity of multi-station operation

[0010] In the traditional film application process, suction cups are not only involved in feeding the film, but also in peeling, aligning, and finally bonding the film. For films with a thickness of only 0.2mm, if the suction cup cannot achieve stable adsorption and precise release of the film when switching between workstations, transfer deviations, film damage, or equipment malfunctions can easily occur, further increasing the complexity of the process.

[0011] Due to the aforementioned issues, higher demands are placed on the design of suction cup devices in automated lithium battery protective film lamination production lines. On one hand, the suction cups need excellent vacuum sealing to prevent poor vacuum adsorption or air leakage that could prevent the film from being securely transferred. On the other hand, the shape, materials, and structural design of the suction cups, as well as their coordination with the multi-station operation of the robotic arm, must ensure high-precision positioning and stable lamination of the ultra-thin film, preventing problems such as bubbles, wrinkles, or film displacement. Furthermore, the operational efficiency and reliability of the equipment on high-speed production lines must be considered to meet the demands of large-scale mass production.

[0012] Therefore, designing a suction cup device specifically for lithium battery film application and loading, capable of efficiently and stably adsorbing and bonding ultra-thin films in multi-station operations, and solving problems such as air bubbles, wrinkles, and vacuum leakage, has become a pressing challenge for those skilled in the art. This invention proposes a lithium battery film application and loading suction cup based on the above background, aiming to improve the quality and efficiency of automated film application processes. Utility Model Content

[0013] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a lithium battery film-feeding suction cup with a reasonable structural design, which greatly improves the quality and efficiency of the automatic film-feeding process.

[0014] To achieve the above objectives, this utility model is implemented through the following technical solution: a lithium battery film-applying suction cup, comprising a suction cup base, a sealing cover plate, a sealing ring, a silicone pad, and a protective film. The suction cup base has a vacuum chamber inside, a sealing groove around the vacuum chamber, a sealing ring in the sealing groove, a vacuum hole at the bottom of the suction cup base, a sealing cover plate on the suction cup base, a vacuum tube inlet on the sealing cover plate, and a protective film on the outside of the suction cup base through an anti-slip silicone pad.

[0015] Preferably, the diameter of the vacuum hole is 3 mm.

[0016] Preferably, the silicone pad has a thickness of 1 mm.

[0017] The beneficial effects of this utility model are as follows: through vacuum adsorption technology, sealing design and anti-slip protection measures, a highly efficient and stable adsorption effect is achieved, which is suitable for the feeding process of lithium battery film and has the advantages of high efficiency, good sealing and anti-slip protection. Attached Figure Description

[0018] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments;

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is an exploded view of the present invention;

[0021] Figure 3 This is a schematic diagram of the external appearance of the suction cup substrate of this utility model; Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0023] Reference Figure 1-3 The specific embodiment adopts the following technical solution: a lithium battery film feeding suction cup, including a suction cup base 1, a sealing cover plate 2, a sealing ring 3, a silicone pad 4 and a protective film 5. The suction cup base 1 is provided with a vacuum chamber inside, and a sealing groove is provided around the vacuum chamber. A sealing ring 3 is provided in the sealing groove. A vacuum hole 11 is provided at the bottom of the suction cup base 1. A sealing cover plate 2 is provided on the suction cup base 1. A vacuum tube inlet 6 is provided on the sealing cover plate 2. A protective film 5 is provided on the outside of the suction cup base 1 through the anti-slip silicone pad 4.

[0024] It is worth noting that the diameter of the vacuum hole 11 is 3mm.

[0025] In addition, the thickness of the silicone pad is 1 mm.

[0026] In this specific embodiment, a vacuum pump is connected via a vacuum tube inlet 6. After the vacuum pump is started, a negative pressure is generated inside the vacuum chamber of the suction cup base 1, forming a vacuum environment. A sealing ring 3 is placed in the sealing groove to ensure the vacuum chamber is airtight and prevent vacuum leakage. The vacuum hole 11 at the bottom of the vacuum chamber has a diameter of 3mm to ensure uniform vacuum flow, allowing the suction cup to evenly adsorb the lithium battery film. A 1mm thick anti-slip silicone pad 4 is provided on the outside of the suction cup base 1 to reduce friction and prevent the protective film 5 from sticking to the suction cup base 1. The protective film 5 covers the outside of the suction cup base 1, further protecting the suction cup and the lithium battery film.

[0027] The design of the vacuum chamber and vacuum hole 11 in this specific embodiment ensures uniform vacuum flow, improving adsorption efficiency and stability. The design of the sealing ring 3 and sealing groove effectively prevents vacuum leakage, ensuring the durability of adsorption force; the anti-slip silicone pad 4 reduces friction, prevents the protective film 5 from sticking to the suction cup substrate 1, and extends service life. The protective film 5 effectively protects the suction cup and lithium battery film, reducing wear and contamination. The overall structure is simple, easy to install and maintain, and suitable for automated production lines.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A lithium battery film loading suction cup, characterized in that, It includes suction disc base (1), sealing cover plate (2), sealing ring (3), silica gel pad (4) and protective film (5), the inside of suction disc base (1) is provided with vacuum chamber, and the periphery of vacuum chamber is sealing groove, sealing ring (3) is arranged in sealing groove, the bottom of suction disc base (1) is provided with vacuum hole (11), sealing cover plate (2) is arranged on suction disc base (1), vacuum pipe inlet (6) is arranged on sealing cover plate (2), and the outside of suction disc base (1) is provided with protective film (5) through anti-skid silica gel pad (4).

2. The lithium battery film loading suction disc according to claim 1, characterized in that, The diameter of the vacuum hole (11) is 3mm.

3. The lithium battery film loading suction disc according to claim 1, characterized in that, The thickness of the silica gel pad (4) is 1mm.

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