Contact type temperature measurable plate shape detecting device

Abstract

The invention discloses a contact type temperature measurable plate shape detecting device. The contact type temperature measurable plate shape detecting device comprises a temperature measurable plate shape detecting roller, a thermal imager and a plate shape detecting and controlling system. The temperature measurable plate shape detecting roller can simultaneously provide on-line plate shape signals and transient temperature signals; the thermal imager is used for detecting and providing temperature field images of cold-rolling strip steels; and the plate shape detecting and controlling system is used for receiving the plate shape signals and temperature signals, and conducting signal processing and synchronous calculating, and synchronously implementing the plate shape error compensation of the transient temperature for real-time plate shape signals of on-line strip steels, so that plate shape detecting precision of the strip steels can be improved. According to the contact type temperature measurable plate shape detecting device, the plate shape states of the strip steels can be detected in real time, the transient temperature changes can be measured synchronously, effective temperature compensations for high precision plate shape errors are implemented, plate shape errors caused by temperature changes is reduced, and then plate shape detecting precision of the cold-rolling strip steels is improved.

Description

technical field [0001] The invention relates to the field of automatic measurement of steel rolling machinery and equipment, in particular to a contact-type temperature-measurable plate shape detection device, which is suitable for on-line shape and instantaneous measurement of cold-rolled strip products such as high-grade steel strip, aluminum strip, and copper strip. Synchronous detection of state temperature. Background technique [0002] Shape is the key technical index of cold-rolled strip steel, and temperature is an important factor affecting the accuracy of shape detection. During the rolling process, the strip steel undergoes plastic deformation and friction to generate heat, and its temperature changes with the change of parameters such as the strip steel material, reduction, rolling speed and work hardening, resulting in different degrees of strip shape error , the plate shape error caused by this temperature change has different rules, which is difficult to dete...

AI Technical Summary

Problems solved by technology

However, this kind of non-contact detection has a large measurement error for strip steel with a bright surface. When the temperature of the strip steel is high, it cannot even reflect the actual temperature change, and there are often emulsions and smoke on site, which further increases the temperature of the strip steel. Difficulty of temperature detection

Although the contact thermometer has high detection accuracy and can reflect the actual temperature change of the strip, it cannot effectively detect the temperature of the high-speed moving strip, which may scratch the strip, and is not easy to install and debug. Fixed-point detection at shutdown or offline static temperature measurement cannot obtain the strip temperature at any time and any position in real time, which inevitably leads to the inconsistency between the measured temperature and the online temperature

Therefore, if there is no suitable strip temperature and strip shape synchronous detection device, it is difficult to accurately obtain the instantaneous temperature distribution of the online strip, and it will also lead to asynchronous detection of the online strip shape and transient temperature, which will inevitably affect the strip temperature. Steel temperature compensation accuracy and plate shape detection effect

Images