The Application Of AC Servo System In Shelf Cold Roll ...
2021-8-21u2002·u20023.1 The automatic feeding device of the pre-punching process of the cold bending forming production line of the shelf column is composed of an upper and lower pair of φ75 guide rollers. The main working power comes from an AC servo motor, which relies on the friction between the material plate and the upper and lower guide rollers.
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