辊

辊是工业机械上辊组中的圆柱形部件，用于在轧制、成形、压延或涂布等加工过程中对材料施加压力、张力或导向。它们经过精密设计，以保持与材料的持续接触，同时承受操作力及环境条件。

辊通过绕其中心轴旋转，同时与加工材料保持接触来工作。它们通过摩擦或直接压力传递机械能，以变形、输送或精整材料。上辊组通常包含多个按特定配置排列的辊，通过受控的压力分布和材料导向来实现所需的加工效果。

Rolls operate by rotating around their central axis while maintaining contact with processed materials. They transfer mechanical energy through friction or direct pressure to deform, transport, or finish materials. The upper roll bank typically contains multiple rolls arranged in specific configurations to achieve desired processing effects through controlled pressure distribution and material guidance.