Polymer soft package battery packaging equipment aluminum plastic shaping mechanism

Abstract

The utility model belongs to lithium ion battery technical field, concretely relates to a kind of polymer soft package battery packaging equipment aluminium plastic shaping mechanism, including bottom plate, linear guide rail, left and right offset adjusting mechanism, shaping roller, fixed plate and scale rule;The linear guide rail is fixedly arranged on the bottom plate;The left and right offset adjusting mechanism is slidably connected with the linear guide rail, and can move along the length direction of the linear guide rail;The shaping roller is installed on the left and right offset adjusting mechanism, and is used to shape operation to aluminium plastic film.The utility model is introduced by optimizing core structure design and introducing automation auxiliary component, and the efficiency and flexibility of polymer soft package battery aluminium plastic shaping are significantly improved.

Description

Technical Field

[0001] This utility model belongs to the field of lithium-ion battery technology, specifically relating to an aluminum-plastic shaping mechanism for polymer soft-pack battery packaging equipment. Background Technology

[0002] Polymer pouch batteries, with their significant advantages such as high energy density, light weight, and flexible shape, have become core energy components in consumer electronics (such as smartphones and tablets), electric vehicles, and energy storage devices, and their market demand and application scope continue to expand. In the production process of polymer pouch batteries, aluminum-plastic film encapsulation is a crucial step in ensuring battery performance and safety, and the shaping process of the aluminum-plastic film is the core step that directly determines the encapsulation quality—the shaping effect not only affects the flatness of the battery's appearance but also directly relates to the sealing performance of the aluminum-plastic film. Improper shaping may lead to problems such as leakage and bulging, seriously threatening the battery's safety and lifespan.

[0003] However, the aluminum-plastic forming mechanisms currently widely used in the industry still have many technical shortcomings, making it difficult to meet the demands of large-scale, high-precision production. Specific problems are as follows: First, the shaping precision is insufficient. The core component of existing shaping mechanisms—the mold design—lacks sufficient precision, resulting in a low fit between the mold cavity and the aluminum-plastic film. This easily leads to uneven stress on the aluminum-plastic film during the shaping process, causing localized wrinkles, tensile deformation, or stress concentration. Such defects not only compromise the uniformity of the battery's appearance but also weaken the sealing integrity of the aluminum-plastic film, increasing safety hazards during later battery use.

[0004] Secondly, production efficiency is low. On the one hand, existing facilities rely heavily on manual operation to control key parameters such as heating temperature, shaping pressure, and cooling time. Manual operation not only makes it difficult to achieve real-time and accurate matching of parameters, but also easily leads to inconsistent shaping effects between different batches of products due to differences in operation, which cannot meet the "uniformity" requirements of large-scale mass production. On the other hand, the manual intervention process is cumbersome, and the shaping cycle of a single battery is long, making it difficult to adapt to the cycle time requirements of high-speed production lines.

[0005] Third, the equipment lacks flexibility. As market demands for the specifications and shapes of polymer soft-pack batteries become increasingly diverse, existing forming mechanisms struggle to quickly adapt to aluminum-plastic films of different sizes and shapes. Changing the mold or adjusting equipment parameters requires disassembling and reassembling multiple components, a complex and time-consuming process (typically several hours for a single changeover), severely restricting the production line's changeover efficiency and hindering its ability to quickly respond to multi-variety, small-batch production orders.

[0006] In summary, the shortcomings of existing aluminum-plastic forming mechanisms in terms of precision, efficiency, and flexibility have become key bottlenecks restricting the improvement of polymer soft-pack battery production capacity and quality optimization. The industry urgently needs an aluminum-plastic forming mechanism with high precision, high efficiency, high flexibility, and easy maintenance to solve the above-mentioned technical pain points. Utility Model Content

[0007] The purpose of this utility model is to provide an aluminum-plastic shaping mechanism for polymer soft-pack battery packaging equipment, thereby solving the technical problems existing in the prior art.

[0008] To achieve the above objectives, this utility model provides the following technical solution: an aluminum-plastic film shaping mechanism for polymer soft-pack battery packaging equipment, comprising a base plate, a linear guide rail, a left-right offset adjustment mechanism, a shaping roller, a fixing plate, and a scale; the linear guide rail is fixedly mounted on the base plate; the left-right offset adjustment mechanism is slidably engaged with the linear guide rail and can move along the length direction of the linear guide rail; the shaping roller is mounted on the left-right offset adjustment mechanism and is used for shaping the aluminum-plastic film; the fixing plate and the scale are both fixed on the base plate, and the scale is arranged along the length direction of the linear guide rail, both being used together for positioning and calibration of the left-right offset adjustment mechanism; the left-right offset adjustment mechanism can adjust the lateral position of the shaping roller to adapt to aluminum-plastic films of different specifications and shapes.

[0009] Preferably, the left and right offset adjustment mechanism includes a roller bracket, a shaping roller bracket, and a roller bearing; the roller bearing is embedded in the end of the shaping roller bracket; both ends of the shaping roller are rotatably engaged with the roller bearing, so that the shaping roller can rotate around its own axis; the shaping roller bracket is fixedly connected to the roller bracket, and the roller bracket is slidably connected to the linear guide rail.

[0010] Preferably, it further includes a guide rail support frame; the bottom of the guide rail support frame is fixedly connected to the base plate, and the top is fixedly connected to the linear guide rail, for supporting and fixing the linear guide rail.

[0011] Preferably, it further includes an adjustment block bracket; one end of the adjustment block bracket is slidably connected to the linear guide rail, and the other end is fixedly connected to the roller bracket of the left and right offset adjustment mechanism, which is used to assist in fixing the left and right offset adjustment mechanism and enhance its sliding stability.

[0012] Preferably, it further includes a fastening bracket; the fastening bracket is detachably connected to the adjusting block bracket, and when the left and right offset adjustment mechanism is adjusted to the target position, the fastening bracket can lock the adjusting block bracket and the linear guide rail to prevent the left and right offset adjustment mechanism from shifting.

[0013] The beneficial effects of this invention are as follows: By optimizing the core structural design and introducing automated auxiliary components, this invention significantly improves the efficiency and flexibility of aluminum-plastic shaping for polymer soft-pack batteries. Specifically, the sliding cooperation between the linear guide rail and the left-right offset adjustment mechanism, coupled with the precise marking of the adjustment position by a high-precision ruler, greatly simplifies the changing operation of aluminum-plastic films of different specifications. Compared to existing mechanisms that rely on manual disassembly and adjustment, it can save 3 hours per changing operation, increasing overall production efficiency by 30%, effectively adapting to the needs of large-scale, multi-variety production.

[0014] Meanwhile, this invention offers significant advantages in ensuring shaping accuracy and reducing operating costs. The shaping roller achieves stable rotation through roller bearings, and the precise position control via the left-right offset adjustment mechanism prevents wrinkles, deformation, or localized stress concentration in the aluminum-plastic film during the shaping process, significantly improving the battery's appearance quality and sealing performance, thereby increasing product yield. Furthermore, the overall structure is simple, eliminating the need for complex manual parameter adjustments, reducing manual intervention costs and maintenance difficulties, and providing strong support for enterprises to reduce production costs and ensure production stability. Attached Figure Description

[0015] Figure 1 is a schematic diagram of the overall structure of this utility model; Figure 2 is a partial enlarged view of this utility model; Figure 3 is a schematic diagram of the aluminum-plastic adjusting wheel in this utility model. Detailed Implementation

[0016] The specific embodiments of this utility model are described in detail below with reference to the accompanying drawings and preferred embodiments.

[0017] like Figure 1-3 As shown, the aluminum-plastic film shaping mechanism in this embodiment uses a base plate as the basic supporting component. It is assembled with a linear guide rail 2, a left-right offset adjustment mechanism, shaping rollers 4, a fixed plate, a scale 7, a guide rail support frame 6, an adjustment block bracket 3, and a fastening bracket 5. An automated control system can be optionally added. The components are fixed or movable through bolt connections, embedding, or other methods to form a complete aluminum-plastic film shaping unit. The aluminum-plastic film 1, as the workpiece to be shaped, must pass through the working area of ​​the shaping rollers 4 to complete the shaping operation.

[0018] The guide rail support frame 6 is made of metal and is vertically fixed to the pre-set mounting holes on the base plate using expansion bolts. Its top has a groove that matches the linear guide rail 2. After the linear guide rail 2 is inserted into this groove, it is tightened and fixed using side bolts, ensuring that the linear guide rail 2 remains parallel to the base plate, with a parallelism error controlled within 0.1mm / m. This provides precise guidance for the subsequent sliding of the left-right offset adjustment mechanism and avoids deviations in the alignment position due to guide rail tilting.

[0019] The left-right offset adjustment mechanism uses the roller bracket 9 as its core component. A slider adapted to the linear guide rail 2 is installed at its bottom. After the slider is embedded in the linear guide rail 2, it can slide smoothly along the length of the guide rail without jamming or offset. The top of the roller bracket 9 is fixedly connected to the shaping roller bracket 8 by welding or bolts. The shaping roller bracket 8 has symmetrical bearing mounting holes at both ends. The roller bearings 10 are inserted into the mounting holes with an interference fit, ensuring that the roller bearings 10 are firmly fixed and without loosening. The two ends of the shaping roller 4 are fitted with the inner ring of the roller bearing 10 with a clearance fit. After assembly, the shaping roller 4 can rotate flexibly around its own axis with a rotational resistance of no more than 5N, ensuring that the roller can rotate synchronously with the aluminum-plastic film during the shaping process, avoiding scratching the aluminum-plastic film.

[0020] The scale 7 is made of stainless steel with a scale accuracy of 0.5mm. It is fixed to the base plate near the linear guide 2 with screws, and the scale lines of the scale 7 are parallel to the length direction of the linear guide 2. The zero mark of the scale 7 is aligned with the initial position of the shaping roller 4, allowing the operator to visually read the adjustment distance. One side of the adjusting block bracket 3 is fixedly connected to the roller bracket 9 with bolts, and the other side has an elongated hole. The fastening bracket 5 is an L-shaped metal part. One end of it is connected to the adjusting block bracket 3 through the elongated hole with a bolt, and the other end abuts against the side of the linear guide 2. After the left and right offset adjustment mechanism is adjusted to the target position, tightening the bolts locks the adjusting block bracket 3 and the linear guide 2 through the fastening bracket 5, preventing displacement of the left and right offset adjustment mechanism due to vibration during operation and ensuring shaping accuracy.

[0021] Work process and operation method Before starting the operation, the operator first loosens the locking bolts on the fastening bracket 5, pushes the roller bracket 9 to move along the linear guide rail 2, and adjusts the position of the shaping roller 4 according to the width specification of the aluminum-plastic film 1 to be shaped, referring to the scale of the ruler 7, so that the spacing of the shaping roller 4 matches the width of the aluminum-plastic film 1, ensuring that the aluminum-plastic film 1 can just pass between the two shaping rollers 4 and adhere to the roller surface.

[0022] After the shaping roller 4 is adjusted to the target position, tighten the locking bolt on the fastening bracket 5. The fastening bracket 5 locks the adjusting block bracket 3 and the linear guide rail 2, thereby fixing the position of the roller bracket 9 and the shaping roller 4 and preventing the position of the shaping roller 4 from changing during operation.

[0023] When the equipment is started, the aluminum-plastic film 1 enters the shaping area under the drive of the conveying mechanism and passes between two shaping rollers 4. The shaping rollers 4 rotate synchronously under the drive of the aluminum-plastic film 1, and apply uniform pressure to the surface of the aluminum-plastic film 1 through the shaping rollers 4, flattening the wrinkles on the surface of the aluminum-plastic film 1, and correcting the shape of the aluminum-plastic film 1 at the same time, so that the aluminum-plastic film 1 maintains a flat and regular shape, thus completing the shaping operation.

[0024] When it is necessary to change to aluminum-plastic film 1 of different specifications or shapes, first loosen the locking bolts of the fastening bracket 5, push the roller bracket 9 to move along the linear guide rail 2, and adjust the spacing of the shaping roller 4 according to the scale 7 to match the size of the new aluminum-plastic film 1. After the adjustment is completed, tighten the fastening bracket 5 again to lock the position. The entire changeover process does not require disassembling the mold, the operation is simple and quick, and it can save about 3 hours of changeover time, effectively improving production efficiency.

[0025] If equipped with an automated control system, the operator can input the specifications of the aluminum-plastic film 1 to be shaped through the control system. The automated control system will automatically drive the drive components of the left and right offset adjustment mechanism, such as a servo motor, to move the roller bracket 9 along the linear guide rail 2. Combined with the position feedback signal of the scale 7, the position of the shaping roller 4 will be automatically calibrated without manual adjustment. At the same time, the automated control system can monitor the pressure, speed and other parameters of the shaping roller 4 in real time during the shaping process. When the parameters are abnormal, an alarm signal will be issued in time to reduce manual intervention, reduce human operation error, and further improve production consistency and product yield.

[0026] 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. An aluminum-plastic shaping mechanism for a polymer soft-pack battery packaging device, characterized in that, The system includes a base plate, a linear guide rail (2), a left-right offset adjustment mechanism, a shaping roller (4), a fixing plate, and a scale (7). The linear guide rail (2) is fixedly mounted on the base plate. The left-right offset adjustment mechanism is slidably engaged with the linear guide rail (2) and can move along the length direction of the linear guide rail (2). The shaping roller (4) is mounted on the left-right offset adjustment mechanism and is used to shape the aluminum-plastic film (1). The fixing plate and the scale (7) are both fixed on the base plate, and the scale (7) is arranged along the length direction of the linear guide rail (2). The two are used together for positioning and calibration of the left-right offset adjustment mechanism. The left-right offset adjustment mechanism can adjust the lateral position of the shaping roller (4) to adapt to aluminum-plastic films (1) of different specifications and shapes.

2. The aluminum-plastic shaping mechanism of the polymer soft-pack battery packaging equipment according to claim 1, characterized in that, The left and right offset adjustment mechanism includes a roller bracket (9), a shaping roller bracket (8), and a roller bearing (10); the roller bearing (10) is embedded in the end of the shaping roller bracket (8); the two ends of the shaping roller (4) are respectively rotatably engaged with the roller bearing (10), so that the shaping roller (4) can rotate around its own axis; the shaping roller bracket (8) is fixedly connected to the roller bracket (9), and the roller bracket (9) is slidably connected to the linear guide rail (2).

3. The aluminum-plastic shaping mechanism of the polymer soft-pack battery packaging equipment according to claim 1, characterized in that, It also includes a guide rail support frame (6); the bottom of the guide rail support frame (6) is fixedly connected to the base plate, and the top is fixedly connected to the linear guide rail (2), which is used to support and fix the linear guide rail (2).

4. The aluminum-plastic shaping mechanism of the polymer soft-pack battery packaging equipment according to claim 3, characterized in that, It also includes an adjustment block bracket (3); one end of the adjustment block bracket (3) is slidably connected to the linear guide rail (2), and the other end is fixedly connected to the roller bracket (9) of the left and right offset adjustment mechanism, which is used to help fix the left and right offset adjustment mechanism and enhance its sliding stability.

5. The aluminum-plastic shaping mechanism of the polymer soft-pack battery packaging equipment according to claim 4, characterized in that, It also includes a fastening bracket (5); the fastening bracket (5) is detachably connected to the adjusting block bracket (3). When the left and right offset adjustment mechanism is adjusted to the target position, the fastening bracket (5) can lock the adjusting block bracket (3) and the linear guide rail (2) to prevent the left and right offset adjustment mechanism from shifting.

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