Scraper device for moved surface of a paper, carton or other machine for the production or refinement of fiber material web, comprises a scraper blade, which extends itself diagonally to the surface to be scraped

摘要

The scraper device comprises a scraper blade (6), which extends itself diagonally to a surface (3) of a paper or carton. The scraper blade is inserted in a blade container (2) held by a pack basket and is engaged against the surface to be scraped. The scraper device comprises a sensor (7) for indirect detection of pressing power caused on the scraper blade. The sensor is arranged in a measuring device, which is formed as separate component connectable with the scraper blade and/or the blade container. The scarper blade and the measuring device are joint in the blade container. The scraper device comprises a scraper blade (6), which extends itself diagonally to a surface (3) of a paper or carton. The scraper blade is inserted in a blade container (2) held by a pack basket and is engaged against the surface to be scraped. The scraper device comprises a sensor (7) for indirect detection of pressing power caused on the scraper blade. The sensor is arranged in a measuring device, which is formed as separate component connectable with the scraper blade and/or the blade container. The scarper blade and the measuring device are joint in the blade container. A stretching device corresponds to the measuring device in mounted condition in stretching direction of the scraper blade. The length of the measuring device diagonally to the machine direction is smaller or equal to the length of the scraper blade diagonal to the machine direction. The measuring device is arranged on an upper and/or lower side of the scraper blade. The sensor is arranged on the surface of the measuring device. The measuring device is oriented in the mounted condition so that the sensor is turned to or turned away the scraper blade, and is formed as a film with a sensor imbedded in the foil. The sensor is formed as electric or optical resistive wire strain, piezo-electric sensor or as optical fiber. The measuring device is arranged relative to the blade container so that a power in the sensor is induced over the blade container. The sensor is partially covered by the blade container. The sensor is formed as laser sensor or as ultrasound sensor. The measuring device is constructed out of metal and/or composite material and has a metallic and/or ceramic coating.