Device and method for monitoring guide device and lip position of plate rolling mill

Abstract

The invention discloses a guide device and a lip position monitoring device and method for a medium and thick plate rolling mill. The method includes step 1: replacing the upper work roll of the rolling mill, and measuring the wear amount of the self-lubricating liner; step 2: installing a new On the upper work roll, the main body of the guide device rises until the lip of the guide device fits the water cutting plate of the work roll; Step 3: Calculate the absolute value |X| X| is the monitoring object; Step 4: Whether |X| is ≤ the standard value, if yes, the lip position is normal, go to step 5, if not, the lip position is abnormal, stop the roll change and confirm on site; Step 5: Replace the upper work roll , normal production; Step 6: Monitor |X| and judge whether it is ≤ the standard value, if yes, the lip position is normal, continue production, if not, the lip position is abnormal, stop the machine for inspection. The invention prevents the guide and guard device from being knocked and broken, and prevents the excessive lifting force of the oil cylinder from increasing the deformation of the middle part of the water cutting plate of the work roll and scratching the work roll.

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...

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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

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