Early warning device and method for slip of strip steel tension roller units

Abstract

The invention relates to a monitoring device with a strip steel tight roll machine set and a monitoring method. The device comprises the tight roll machine set with a transducer (1) and a revolution speed transducer (2) which is connected with the transducer, and the output end of the revolution speed transducer is connected with a preposed processing circuit (3) which is connected with a calculation control module (4), the output end of the calculation control module is connected with a feedback circuit (5) which is connected with the control system (6) of the tight roll machine set. The control method of the system comprises that the revolution speed transducer is used for receiving the linear speed VR of the tight roll and the translational speed V of the metal strip, and the linear speed VR and the translational speed V are output by the transducer; the signal of the revolution speed transducer is conveyed to the calculation control module after the filtering method of the preposed processing circuit; the calculation control module works out the average linear speed VR of the whole tight roll machine set so as to calculate a slippage proportionality factor S according to a formula, the slippage proportionality factor S and a preset value are judged comparatively; a judgment result is conveyed to the control system of the tight roll machine set by the feedback circuit, so as to warn the occurrence of slippage in advance.

Description

technical field [0001] The invention relates to a strip steel tension roller unit, in particular to a detection and control device and a detection and control method for a strip steel tension roller unit. Background technique [0002] The maximum speed of the process section of the continuous annealing unit is above 850mpm, and the product specifications are 0.18-0.55mm thick and 700-1230mm wide. The tension roller unit is the basic condition for realizing tension control, deviation correction control, thermal warp suppression, etc. Without a good state of the roller system, it is difficult to realize the automatic control of various units. The roll system includes: the quality (roll shape, roughness, precision) and installation accuracy of a single online roll; the spatial position accuracy and roughness matching relationship in the regional roll group; the relationship between the roll systems in different areas. [0003] The following slip judgment formula is given in th...

AI Technical Summary

Problems solved by technology

[0007] However, in actual production, since the entrance tension and exit tension of the rolled piece cannot be obtained, it is impossible to use the method of comparing the difference between the entrance and exit tension with the maximum static friction of the strip steel and the rolled piece to judge whether it is slipping

Images