DEVICE AND METHOD FOR CALIBRATING A PLANISHING ROLLER DEVICE BY MEANS OF AN INSTRUMENTED BAR

摘要

A rigid bar (8) whose dimensions are such that it can be placed between the lower rollers (11) and upper rollers (12) of a planishing device, comprising rigid segments (81) reproducing the action of the lower rollers (11). A fine-thickness metal blade (82) rests upon said rigid segments by being fixed at a center point and comprises extensometers (83) for measuring elastic deformations during the tightening which is carried out on the planishing device. The bar (8) can also include a longitudinal positioning device (84) in the planishing device and an extension (85).