Polymer battery bevel pushing-back mechanism

Abstract

The utility model belongs to the technical field of lithium ion batteries, and particularly relates to a polymer battery bevel push-back mechanism, which comprises a support, a push-back mechanism and a push-back mechanism, the Z-axis sliding table cylinder is fixed on the bracket; the air cylinder connecting plate is connected with the moving end of the Z-axis sliding table air cylinder; the X-axis sliding table air cylinder is mounted on the air cylinder connecting plate; the connecting block is connected with the moving end of the X-axis sliding table air cylinder; the push block mounting plate is fixed on the connecting block; and the push block is mounted on the push block mounting plate. According to the polymer battery bevel pushing-back mechanism, the Z-axis sliding table air cylinder drives the pushing block to vertically descend to the surface of a battery firstly, then the X-axis sliding table air cylinder drives the pushing block to move forwards by 2 mm, battery creases completely enter a covering area of the lower pressing block, complete compaction of the creases is achieved through full contact of the pressing block and the surface of the battery, and the battery bevel pushing-back effect is achieved. Therefore, the problem of break angle cracking caused by the fact that the creases of traditional equipment are not compacted is solved.

Description

Technical Field

[0001] This utility model belongs to the field of lithium-ion battery technology, specifically relating to a polymer battery corner push-back mechanism. Background Technology

[0002] Lithium-ion batteries are widely used in portable electronic devices, electric vehicles, and power tools due to their advantages such as high voltage, high specific energy, long cycle life, and long storage time. With increasing market demand, the requirements for battery performance and production efficiency are rising. In the production process of lithium-ion batteries, the polymer battery folding process in the double-folding equipment is one of the key steps. This process requires sequentially folding the sealed ends of the battery at 90°, 180°, and compacting them. However, existing technologies have the following problems:

[0003] Corner breakage is common: In traditional equipment, the crease is not fully compacted during the corner bending process, which can cause the battery corner to crack, affecting battery quality and reliability.

[0004] Design flaws in the pressure block: The shape of the lower and upper pressure blocks in the existing equipment does not match the crease well enough, which makes it impossible to effectively compact the crease area and further increases the risk of cracking.

[0005] Low production efficiency: The bending efficiency of traditional equipment is about 12ppm, which is difficult to meet the needs of large-scale production. Utility Model Content

[0006] To address the aforementioned issues, this patent proposes a polymer battery folding and pushing mechanism. By adding a pushing function to the existing equipment, it ensures that the fold is completely compacted within the pressing area, thereby solving the cracking problem and improving production efficiency.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a polymer battery corner-pushing mechanism, the mechanism comprising:

[0008] Bracket: Installed on double-folded equipment;

[0009] Z-axis slide cylinder: fixed to the bracket;

[0010] Cylinder connecting plate: connected to the moving end of the Z-axis slide cylinder;

[0011] X-axis slide cylinder: mounted on the cylinder connecting plate;

[0012] Connecting block: Connects the moving end of the X-axis slide cylinder;

[0013] Push block mounting plate: fixed on the connecting block;

[0014] Push block: Installed on the push block mounting plate, it can first descend and then push the battery forward under the drive of the Z-axis slide cylinder and the X-axis slide cylinder, so that the battery moves inward by 2mm.

[0015] Preferably, the bracket is installed via screw holes on the double-folded edge device.

[0016] Preferably, the Z-axis slide cylinder and the X-axis slide cylinder are equipped with positioning limit blocks.

[0017] Preferably, the pusher is a universal design that is compatible with all battery models.

[0018] Preferably, after the pusher pushes the battery, the battery crease is completely located within the pressing block area.

[0019] The beneficial effects of this utility model are as follows: This polymer battery folding and pushing mechanism uses a Z-axis slide cylinder to drive a pusher block to descend vertically to the battery surface, and then an X-axis slide cylinder to drive the pusher block forward by 2mm, ensuring that the battery crease is fully within the coverage area of ​​the pressing block. The full contact between the pressing block and the battery surface achieves complete compaction of the crease, thus eliminating the folding cracking problem caused by incomplete compaction of the crease in traditional equipment. The mechanism adopts a dual-axis cylinder linkage design, with precise control of the cylinder stroke via a positioning limit block, ensuring consistency and positional accuracy in each pushing and pushing action, avoiding battery position deviation caused by cylinder over- or under-injection. The bracket is directly installed using the existing screw holes of the double-folding equipment, requiring no additional equipment modification, saving space and simplifying the operation process. The pusher block adopts a planar contact design, adaptable to batteries of different thicknesses and sizes, and compatible with all models without mold replacement, significantly reducing changeover costs and time. The push-back efficiency of this device reaches over 15ppm, a 25% improvement over the original equipment's 12ppm. The production process is stable, effectively reducing downtime for maintenance and rework caused by breakage. At the same time, the smooth drive action of the dual-axis cylinder reduces mechanical stress damage to the battery, extending the equipment's service life. Attached Figure Description

[0020] Figure 1 This is a perspective view of the present utility model;

[0021] Explanation of reference numerals in the attached drawings: 1 bracket, 2 Z-axis slide cylinder, 3 cylinder connecting plate, 4 X-axis slide cylinder, 5 connecting block, 6 push block mounting plate, 7 push block. Detailed Implementation

[0022] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0023] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, 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 on this invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0024] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixed connection," and "fixed connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0025] The specific embodiments of this utility model are described in detail below with reference to the accompanying drawings and preferred embodiments.

[0026] like Figure 1 As shown, a polymer battery corner push-back mechanism includes:

[0027] Bracket 1: Installed on double-folded edge equipment;

[0028] Z-axis slide cylinder 2: fixed to the bracket 1;

[0029] Cylinder connecting plate 3: connected to the moving end of the Z-axis slide cylinder 2;

[0030] X-axis slide cylinder 4: mounted on the cylinder connecting plate 3;

[0031] Connecting block 5: Connects the moving end of the X-axis slide cylinder 4;

[0032] Push block mounting plate 6: fixed on the connecting block 5;

[0033] Push block 7: Installed on the push block mounting plate 6, it can first descend and then push the battery forward under the drive of the Z-axis slide cylinder 2 and the X-axis slide cylinder 4, so that the battery moves inward by 2mm.

[0034] When using this folding and pushing mechanism, the battery is first precisely positioned at the pushing station by the guide rollers at the feed inlet of the double-folding device, ensuring a positional deviation of ≤0.5mm. Then, the Z-axis slide cylinder drives the pusher block to descend vertically at a speed of 300mm / s. Upon contact with the battery surface, the pressure sensor automatically stabilizes the contact force to 5-8N. Next, the X-axis slide cylinder pushes the battery 2mm towards the pressing block at a speed of 200mm / s, ensuring the fold is fully within the area covered by the lower pressing block. The X-axis cylinder maintains pressure for 0.3 seconds to ensure compaction, after which the dual-axis cylinders synchronously reset to the initial state. A single cycle takes only 3.8 seconds, 0.8 seconds shorter than traditional equipment. Real-time monitoring of cylinder pressure and stroke data by a PLC, combined with an air source processing unit to ensure stable air pressure, allows the mechanism to maintain a stable efficiency of 15ppm (900 cells per hour) during continuous operation, a 25% improvement over the original equipment. Furthermore, the universal pusher block design is compatible with all battery models, with a changeover time of ≤2 minutes, significantly improving the efficiency of large-scale production.

[0035] For those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

Claims

1. A polymer battery corner pushback mechanism, characterized by, The mechanism comprises: Support (1): installed on the double folding edge equipment; Z-axis sliding table cylinder (2): fixed to the support (1); Cylinder connecting plate (3): connected with the moving end of the Z-axis sliding table cylinder (2); X-axis sliding table cylinder (4): installed on the cylinder connecting plate (3); Connecting block (5): connecting the moving end of the X-axis sliding table cylinder (4); Push block mounting plate (6): fixed on the connecting block (5); Push block (7): installed on the push block mounting plate (6), which can first descend and then push the battery forward under the drive of the Z-axis sliding table cylinder (2) and X-axis sliding table cylinder (4), so that the battery moves 2mm inward.

2. The mechanism of claim 1, wherein, The support (1) is installed through the screw hole on the double folding edge equipment.

3. The mechanism of claim 1, wherein, The Z-axis sliding table cylinder (2) and X-axis sliding table cylinder (4) are provided with in-place limiting blocks.

4. The mechanism of claim 1, wherein, The push block (7) is a universal design, which is suitable for all models of batteries.

5. The mechanism according to any one of claims 1-4, characterized in that After the push block (7) pushes the battery, the battery crease is completely located in the pressing block area.

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