Controlling method for optimizing pass load of reciprocating reversible rolling mill

Abstract

The invention discloses a controlling method for optimizing pass load of a reciprocating reversible rolling mill, and relates to the technical field of metal pressure machining. The method comprises the following steps: passes with failed biting and succeeding in biting after a press-down amount is adjusted is checked and acquired by using a process control model system, and the press-down amountadjustment values of the passes are recorded as pre-calculation values of the press-down amount for rolling a next same-specification rolled piece; the rolling load conditions of all rolling passes are checked, and a rolling force model and a current model are corrected according to the capacity of the rolling mill, or the pre-calculation values of the press-down amount are increased and are re-substituted into the rolling force model to calculate so as to achieve an expected value; the pressure-down amount is re-distributed so as to obtain an optimized pre-calculation value of the pressure-down amount; and whether total number of the rolling passes are reduced after the multiple pre-calculation values of the pressure-down amount are adjusted is checked and subsequent processing is performed. According to the controlling method for optimizing pass load of the reciprocating reversible rolling mill, the problem that the adjusting workload is large in an existing reciprocating reversiblerolling machine, and thus a large number of omissions and errors are prone to occur is solved.

Description

technical field [0001] The invention relates to the technical field of metal pressure processing, in particular to a control method for optimizing the pass load of a reciprocating reversible rolling mill. Background technique [0002] At present, more advanced reciprocating reversing rolling mills are generally equipped with process control model systems. The main function of the process control model system is to set the rolling schedule, among which the reduction amount setting of each rolling pass is the core part. If the reduction amount is set too large, problems such as difficulty in biting, excessive rolling force, and excessive rolling torque may occur. If the rolling force is too large, the hydraulic cylinder will be unloaded, and if the rolling torque is too large, the main drive motor will be damaged. trip. If the reduction is set too small, unnecessary rolling passes will be added, resulting in increased energy consumption. The existing process control model s...

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a control method for optimizing the pass load of a reciprocating reversible rolling mill. This method can solve the problems that the existing reciprocating reversible rolling mill has a large amount of adjustment work and is prone to a large number of omissions and mistakes.