Device and method for monitoring a lubrication state of a rotating belt for the transport of pressed material， as well as a press that can be operated continuously

The invention relates to a device (1) for monitoring a lubrication state of a circulating belt (3) that can be influenced by a lubricant (2)， which is used for the transport of pressed material (4) and for the transfer of a pressing pressure to the pressed material (4) in a continuously operable manner Press (5) is designed for the production of material plates， the device (1) having an input interface (6)， which is designed for at least indirectly receiving at least one signal from a sensor (7)， the sensor (7) being designed for measuring a physical and / or a chemical phenomenon， which is at least indirectly related to a lubricant condition on a surface (8) of the belt (3) and the device (1) further comprises an evaluation unit (9) for determining a lubrication parameter as a parameter for a lubricant condition on the surface (8) of the belt (3) based on the at least one signal from the sensor (7). The lubricating condition of a circulating belt that can be influenced by a lubricant is to be monitored reliably in a continuously operable press. It is proposed that the device (1) has an excitation device (10) which is designed to influence the at least one physical and / or chemical phenomenon of the lubricant (2) to be detected by the sensor (7). The invention further relates to a continuously operable press (5) for the production of material plates and a method for monitoring a lubricating condition of a circulating belt (3) which can be influenced by a lubricant (2).

本发明涉及一种用于监测循环皮带（circulating belt）润滑状态的装置（1），该循环皮带可受润滑剂（lubricant）作用，用于输送被压制物料（pressed material，4），并在用于生产物料板材的连续作业式压机（continuously operable press，5）中向被压制物料传递压制压力。该装置（1）设有输入接口（input interface，6），用于至少间接接收来自传感器（sensor，7）的至少一路信号；所述传感器（7）用于测量至少一种物理现象和/或化学现象，该现象至少间接关联于循环皮带（3）表面（8）上的润滑剂状态。装置（1）还包括评估单元（evaluation unit，9），用于基于传感器（7）传来的至少一路信号，确定润滑参数，该参数作为循环皮带（3）表面（8）上润滑剂状态的表征参数。
针对连续作业式压机中需可靠监测受润滑剂作用的循环皮带润滑状态的需求，本方案提出：该装置（1）设有激励装置（excitation device，10），用于调控传感器（7）待检测的润滑剂（2）的至少一种物理现象和/或化学现象。
本发明还涉及一种用于生产物料板材的连续作业式压机（5），以及一种用于监测受润滑剂（2）作用的循环皮带（3）润滑状态的方法。