Looping cut-to-length line fundamentally solves the problem of mismatch between feeding and shearing speeds. KINGREAL STEEL SLITTER is an experienced manufacturer and supplier of cut-to-length lines. Welcome to visit our factory in China to see machines, either online or in person!

Video About Looping Cut-to-Length Line

Introduction to Looping Cut-to-Length Line

The looping cut-to-length line is designed for automated processing of large-format metal coils, integrating core processes such as uncoiling, leveling, and shearing to achieve one-stop production from raw material coils to customized metal sheets. The shearing line with a loop bridge fundamentally solves the speed difference problem between feeding and shearing. Through precise speed buffering and synchronization control, the looping cut-to-length machine's length-fixing operation is more stable, and the shearing process is smoother, completely eliminating the pain points of traditional cut-to-length lines caused by speed mismatch, such as production interruptions and insufficient precision. Therefore, the looping cut-to-length machine significantly improves the overall production efficiency of the looping cut-to-length line and effectively reduces downtime losses during production.

Parameters of Looping Cut-to-Length Line

Raw Materials: Galvanized sheet; Cold-rolled sheet; carbon steel

Sheet Thickness: 0.3-4.0mm

Sheet Width: 500-2000mm

Speed: 0~60m/min

Design Considerations for Looping Cut-to-Length Line

The looping cut-to-length machine achieves speed synchronization and buffering between the feeding and shearing stages through a scientific structural design, providing a solid guarantee for the efficient operation of the looping cut-to-length line, always focusing on ensuring shearing accuracy and achieving continuous production. In terms of table design, the looping cut-to-length machine adopts a vertical lifting method, combined with a transition surface rubber wheel structure, which not only achieves smooth material conveying and buffering, but also effectively avoids direct friction between the strip surface and the table surface, eliminating problems such as scratches and abrasions on the sheet surface from the source, ensuring a smooth surface of the processed metal sheet, and meeting the requirements of high-precision processing.

To achieve precise synchronization between feeding and shearing, the looping cut-to-length line is equipped with three pairs of high-precision photoelectric sensors to monitor the position of the steel strip in the loop pit in real time. By automatically adjusting the lifting height of the loop bridge, sufficient material is maintained in the pit. When the shearing speed of the looping cut-to-length machine increases, the loop bridge can quickly release the stored material, preventing the looping cut-to-length line from stopping due to insufficient material supply. When the feeding speed is too fast, the loop bridge can promptly store excess material to prevent material accumulation and deviation, ensuring that each process of the looping cut-to-length machine can be seamlessly connected. In short, the design of the looping cut-to-length line resolves speed conflicts between different stages of the looping cut-to-length line through precise speed buffering and position control, making the looping cut-to-length line's length setting more accurate and the shearing more stable, fundamentally improving the overall operating efficiency and product quality of the looping cut-to-length machine.

●Key Point of Looping Cut-to-Length Line Design 1）Looper depth The greater the looper depth, the more material can be stored in the pit, and the higher the shearing speed of the looping cut-to-length machine that can be adapted. In actual production, the looping cut-to-length line can flexibly adjust the looping depth for metal strips of different specifications. This ensures a continuous material supply during high-speed shearing, preventing downtime due to insufficient storage. It also accommodates material buffering needs during low-speed shearing, enabling flexible production and adapting to different batch sizes and specifications. 2）Anti-scratch design The loop bridge is lined with a high-polymer wear-resistant liner. This liner is soft yet wear-resistant, effectively reducing friction between the strip and the table surface. Simultaneously, the transition section uses a rubber-coated guide roller design. The guide roller surface is coated with high-quality polyurethane material, ensuring smooth material transport and preventing hard contact between the guide roller and the strip surface. This fundamentally eliminates surface scratches, ensuring that every sheet processed by the looping cut-to-length machine maintains excellent surface quality. 3）Position detection The looping cut-to-length line is equipped with high-precision sensors (working in conjunction with three pairs of photoelectric sensors) to monitor changes in the looper height in real time. The detection data is synchronously transmitted to the central control system of the looping cut-to-length machine, achieving automatic speed matching between the upstream and downstream equipment, forming a closed-loop control. When the shearing speed of the looping cut-to-length line changes, the sensors can quickly detect fluctuations in the looper height, and the system automatically adjusts the feeding speed to ensure that the feeding and shearing speeds remain synchronized, avoiding problems such as material accumulation, stretching, or insufficient supply, making the looping cut-to-length machine run more smoothly and efficiently.

Advantages of Looping Cut-to-Length Machine

1)High-speed operation

The looping cut-to-length line can achieve stable high-speed operation at 60m/min. Combined with the loop bridge's buffer adjustment function, the looping cut-to-length machine does not require frequent stops to adjust the speed, achieving continuous high-speed shearing. At the same time, the looping cut-to-length line reduces manual operation throughout the process. Operators only need to pre-set relevant parameters such as shearing length, thickness, and speed on the control panel. During the operation of the looping cut-to-length machine, their main responsibility is to monitor the equipment's operating status and handle emergencies promptly.

2)High shearing accuracy

The looping cut-to-length line is equipped with an Servo NC sizing machine, which can accurately measure the length of the sheet metal to be cut. Combined with a servo motor drive, it achieves fast and precise cutting. For metal sheets of different thicknesses, operators can quickly adjust the shear blade gap via a human-machine interface, making operation convenient and efficient. The looping cut-to-length machine also features four interchangeable blades, allowing for alternating blade use, significantly extending the shears' lifespan and reducing tool replacement costs, maximizing economic benefits. Furthermore, the looping cut-to-length line uses a bottom-up cutting method, ensuring that burrs generated during cutting face upwards, effectively preventing burrs from scratching the conveyor belt and protecting the looping cut-to-length machine’s conveyor. Notably, the upper and lower shear gap is adjusted via an AC 0.75KW servo motor and has a gap memory function, allowing the gap parameters for different sheet metals to be stored in the system for subsequent processing of similar sheet metals without repeated adjustments.

3）Fully automatic operation

The looping cut-to-length line integrates uncoiling, leveling, NC length setting, hydraulic high-speed shearing, and material collection mechanisms. It is supplemented by material conveying, buffering, guiding, transporting, and unloading devices, forming a complete automated production line. No manual intervention is required in the connection between processes, truly achieving fully automated operation. The looping cut-to-length machine uses PLC centralized control and is equipped with well-known brand electrical control systems such as Yaskawa, ensuring stable and reliable operation. It can automatically complete the entire process from raw material uncoiling and leveling to length setting, shearing, and material collection according to production needs.

More Customized Cut-to-Length Lines

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KINGREAL STEEL SLITTER provides comprehensive cut-to-length line manufacturing solutions to clients in India, Indonesia, Russia, Brazil, and other countries. For a quote, please contact KINGREAL STEEL SLITTER!