In the new energy lithium battery industry, the stacking and extrusion workstation is a crucial link in the production line of square case battery modules. It ensures that the cells are pressed with precise pressure and in a uniform manner during the stacking process, thereby improving the reliability and consistency of the battery module. Usually, the core equipment of the extrusion workstation includes a cylinder extrusion table and an electric cylinder extrusion table. This article will take an in-depth look at the differences between these two types of extrusion stations, their respective advantages, and explain why an extrusion workstation can be run both as an online process and independently offline.
Cylinder extrusion table vs. electric cylinder extrusion table
1. Cylinder extrusion table
The cylinder extrusion table applies pressure through compressed air and has the characteristics of simple structure, fast response speed and low cost. Cylinder extrusion tables are suitable for scenarios that require fast action and a large pressure range. However, due to fluctuations in air pressure and limited control accuracy, they are not as good as electric cylinder extrusion tables in applications that require higher precision. Generally speaking, the cylinder extrusion table is suitable for square case battery module stacking processes that have relatively low requirements on extrusion accuracy. For example, in mass production, the cylinder extrusion table can improve production efficiency through higher speeds.
Advantages:
·Simple structure and easy maintenance
·Fast action, suitable for mass production
·Relatively low cost, suitable for processes with lower precision requirements
2. Electric cylinder extrusion table
The electric cylinder extrusion table is driven by a servo motor, which can achieve higher control accuracy. Through a precise feedback system, the electric cylinder extrusion table can accurately control the extrusion force and extrusion position, so it is suitable for scenarios that require high pressure accuracy and consistency. Especially in some high-demand square-shell battery modules, the electric cylinder extrusion table can ensure that the cells maintain uniform force during the stacking process, thereby improving the safety and service life of the battery.
Advantages:
·High precision in extrusion force and position control
·Suitable for scenarios requiring high precision to ensure consistency
·Long service life, suitable for long-term operation
The necessity of online operations
In automated production lines for battery modules, extrusion stations are often part of the stacking process. It needs to be seamlessly connected with the front and rear processes to ensure the continuity and efficiency of production. Online extrusion can not only ensure the production rhythm, but also reduce manual intervention and improve the automation of the production line. Therefore, the cylinder extrusion table is usually used in online operation scenarios due to its rapid action.
Flexibility for offline operations
However, not all extrusion operations during the production process need to be completed strictly online. In some cases where higher precision, specific product requirements or sample testing is required, the extrusion workstation can be detached from the production line and operated as an independent station. This is the advantage of "offline operation".
The electric cylinder extrusion table performs particularly well in offline operations. Thanks to its high-precision control, it is able to ensure that every extrusion reaches the same standard while working independently. Therefore, when special processing is required for certain key modules or new products, the extrusion workstation can be converted to offline mode to provide more flexible production support and reduce complex adjustments on the production line.
Suitable scenarios for each
·Cylinder extrusion table: suitable for large-volume standardized production, especially on production lines that require fast and efficient completion of extrusion operations. It moves quickly and is suitable for use in online continuous extrusion.
·Electric cylinder extrusion table: It is suitable for production environments that have higher requirements for pressure and position control accuracy. Especially when personalized customization or small batch production is required, the offline operation mode can provide higher flexibility. It is also ideal for R&D, sample testing or processes with strict requirements on product quality.
in conclusion
Cylinder extrusion tables and electric cylinder extrusion tables each have their own advantages. The former has low cost and fast speed, and is suitable for large-scale mass production; while the latter has high precision and is suitable for high-demand customized production. The dual function of the extrusion workstation - it can be used as a link in the production line and as an offline independent station, which greatly improves the flexibility and efficiency of the production line. This dual adaptability makes the stacking and extrusion process occupy an important position in the square case battery module production line. It can play an irreplaceable role in both large-scale production and small-scale high-precision production.
