Pre-treatment of large-scale sheets (such as steel furniture sheets, electrical appliance shell sheets)
Applications: Electrical switch cabinets, cabinet bodies and door panels of control cabinets；Communication enclosures and cabinets；Elevator wall panels, decorative panels；Home appliance enclosures (such as air conditioners, distribution boxes)；Architectural decorative panels, partitions
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Intelligent self-developed multi-station CNC punching machine, achieving one-time stamping forming of complex sheet metal parts. The multi-intelligent mold library meets the need for maximum efficiency production and enables quick switching of workpieces of different shapes. Increase productivity, continuous production capacity for 7-24 hours, maximum stamping capacity 18T, maximum shearing speed 70 m/min, significantly enhance production efficiency. Fine-grained 2m feeding length error to 0.2mm, 1000x2000mm diagonal tolerance error to 0.5mm, 1000mm width error to 0.2mm. High efficiency and energy saving The production process takes full advantage of automation, uses servo motors, and the power consumption of the three-in-one punching and shearing line is less than 5 kW·h per hour. Safety: The realization of automated production reduces manpower and lowers the laborintensity of employees, fundamentally reducing the occurrence of safety accidents. High-speed CNC punching and shearing lines are mainly used for continuous and efficient punching, trimming, ribbing and shearing of metal coils, ultimately producing flat or initial processed parts of specific sizes and shapes.
Integrating multiple machines and multiple processes into a continuous production line eliminates the time for intermediate handling, positioning, and clamping, and the processing speed is extremely fast (the maximum feeding speed mentioned in the brochure can reach <30m/min), which is very suitable for 7x24-hour non-stop mass production.
The entire line is controlled by a unified numerical control system, and servo feeding ensures the accuracy of every feed. All punching and shearing are done in one positioning, avoiding the cumulative errors brought by multiple clamping, with good dimensional consistency and stable quality of the products.
From roll material to finished product, minimal human intervention is required. By changing the numerical control program and molds, it is possible to quickly switch the production of plates of different specifications and different hole types to meet the flexible production requirements of small batches and multiple varieties.
Material costs: Using coil directly is more economical than buying prefabricated plates; By optimizing the layout, the material utilization rate is extremely high and waste is reduced. Labor costs: Only 1-2 operators are needed to monitor the entire line, significantly reducing reliance on skilled workers and labor costs.
Simplifying complex multi-process production into a one-stop process of "roll in, finish out" simplifies production management and logistics. At the same time, an integrated line takes up less space in the factory than multiple independent machines.
A complete high-speed CNC punching and shearing line typically operates in the following process, integrating multiple core functions:
1. Loading and uncoiling Function: Load metal coil materials (such as steel strips, galvanized sheets, stainless steel coils, etc.) onto the cutting rack by hydraulic or mechanical means and unfold them smoothly to feed materials for subsequent processes.
2 Levelling Function: This is a crucial step. Coil material can develop warping and internal stress during storage and transportation. The flattening machine, through multiple sets of interlaced straightening rollers, repeatedly bends the sheet to completely eliminate the internal stress and unevenness of the coil, ensuring that the sheet entering the processing area is absolutely flat.
3 Servo feeding Function: This is at the core of achieving "high speed" and "numerical control". Precision servo motors controlled by the numerical control system drive the feeding rollers, precisely stepping the sheet into the stamping and shearing zones at set lengths and speeds. The accuracy and speed of its feeding directly determine the machining accuracy and efficiency of the entire line.
4. Numerical control stamping/punching Function: This is one of the "brains" of the production line. During the intermittent pauses of the feeding mechanism, the high-speed CNC punch press (usually equipped with one or more punches) completes at the designated position of the sheet according to a pre-programmed sequence: Punching round holes, square holes, and irregular holes Grooving and stiffening (to increase the rigidity of the sheet) Embossing and tapping holes (for mounting components) Blinds stamping With an automatic die changing system, a variety of different shapes can be processed on one sheet, with extremely high flexibility.
5. Numerical control shearing Function: This is another "brain" of the production line. After punching is done, the precision shearing machine performs the final fixed-length shearing of the sheet according to program instructions. It can achieve: Fixed-length cutting: Cut a continuous sheet into finished sheets of the desired length. Trimming: Trim the sides of the sheet to ensure the width dimensions are precise. Slitting: Cut the wide coil material into multiple narrow plates.
