DEVICE AND METHOD FOR MONITORING A STATE OF LUBRICATION OF A CONTINUOUS BELT FOR TRANSPORTING MATERIAL TO BE PRESSED， AND CONTINUOUSLY OPERABLE PRESS

The invention relates to a device (1) for monitoring a state of lubrication， which can be influenced by a lubricant (2)， of a continuous belt (3) which is designed for transporting material to be pressed (4) and for transferring a pressing force onto the material to be pressed (4) in a continuously operable press (5) in order to produce material panels， the device (1) having an input interface (6)， which is designed to at least indirectly receive at least one signal from a sensor (7)， the sensor (7) being designed to measure a physical and/or a chemical phenomenon which is at least indirectly related to a state of lubrication on a surface (8) of the belt (3)， and the device (1) also comprising an evaluation unit (9) for ascertaining a lubrication parameter as a characteristic variable for a state of lubrication on the surface (8) of the belt (3) on the basis of the at least one signal from the sensor (7). The object of the invention is to reliably monitor the state of lubrication， which can be influenced by a lubricant， of a continuous belt in a continuously operable press. According to the invention， the device (1) has an exciter 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 also relates to a continuously operable press (5) for producing material panels and to a method for monitoring a state of lubrication， which can be influenced by a lubricant (2)， of a continuous belt (3).