Guiding and guarding device of medium and heavy plate mill, monitoring device and method for lip position of guiding and guarding device

Abstract

The invention discloses a guiding and guarding device of a medium and heavy plate mill, a monitoring device and method for the lip position of the guiding and guarding device. The method comprises thefollowing steps that step 1, an upper working roller is replaced on the mill, and the wear of a self-lubricating lining plate is measured; step 2, a new upper working roller is mounted, and a guidingand guarding device main body rises to the lip of the guiding and guarding device to be fitted with the water cutting plate of the working roller; step 3, the absolute deviation value |x| of the theoretical value of the oil cylinder position of the guiding and guarding device and the sensor value of the oil cylinder position is calculated and serves as the monitoring object; step 4, whether |x| is less than or equal to the standard value is determined, if yes, the lip position is normal, the step 5 is performed, if not, the lip position is abnormal, roller changing is stopped, and on-site confirmation is conducted; step 5, the upper working roller is replaced, and normal production is conducted; and step 6, whether |x| is less than or equal to the standard value is monitored and judged, if yes, the lip position is normal, the production is continued, if not, the lip position is abnormal, and shut down for inspection is conducted. By means of the method, the guiding and guarding deviceis prevented from being hit and broken, and scratching of the working roller due to the fact that the lifting force of the oil cylinder is excessive, and the deformation in the middle of the water cutting plate of the working roller is increased is avoided.

Description

technical field [0001] The invention relates to a medium and heavy plate production equipment, in particular to a medium and heavy plate rolling mill guide device and a monitoring device and method for the lip position thereof. Background technique [0002] The medium and heavy plate rolling mill is the key equipment in the medium and heavy plate production line. The guide device is arranged on the entrance side and the exit side of the rolling mill. It is used to smoothly introduce the steel plate from the entrance of the rolling mill and lead it out from the exit of the rolling mill during regular rolling. During reverse rolling, it is used to smoothly introduce the steel plate from the exit of the rolling mill and lead it out from the entrance of the rolling mill. The installation level of the rolling mill guide device not only has an important influence on the output of the rolling mill, the specification and variety of the plate, but also has an important influence on t...

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a monitoring device and method for the guide device and its lip position of a medium and heavy plate mill, which not only avoids the risk of the guide device being hit and broken, but also solves the problem caused by the excessive lifting force of the lifting cylinder. The deformation of the middle part of the roll cutting water plate increases and the problem of scratching the work roll

Images