Head tension adjusting method for controlling segmentation uniformity of deformed steel bar

Abstract

The head tension adjusting method for controlling the cutting uniformity of the deformed steel bar comprises the following steps that 1, a pulse generator is installed on a driving motor, a detector is installed between every two racks, a PLC is connected to the generator, and the detectors are connected with a controller; 2, after the rolled piece is rolled, a detector detects that no rolled piece exists on the station and transmits a signal to a PLC, the PLC sends an instruction to a pulse generator, and the rotating speed of a driving motor is controlled to rise from v to v1; and 3, when the next rolled piece bites steel, the detector detects the rolled piece and transmits a signal to the PLC, the PLC sends an instruction to the pulse generator, and the rotating speed v1 of the driving motor is controlled to be reduced to v. The method is implemented by detecting signals and controlling the system. The speed is adjusted differently according to the prompt drop characteristics of different racks of a rolling line.

Description

technical field [0001] The invention belongs to the field of steel rolling, and in particular relates to a head tension adjustment method for controlling the cutting uniformity of threaded steel. Background technique [0002] In the bar production line, tension control is an important method of control in continuous rolling production. The size control, the temperature of the rolled piece, the state of the guide, and the index of the motor will all affect the control of the tension. In the actual production process, the workshop adopts a DC motor drive, and the dynamic speed will be equivalent. The equivalent is not stable, and there is a disadvantage of a large motor speed drop. , after the rolling material passes through the rolling mill, it is difficult to adjust the tension of the looper, which leads to the phenomenon of partial stacking of the rolling material, and the high arc of the material in the looper area, resulting in a relatively large tension value between the...

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Problems solved by technology

The size control, the temperature of the rolled piece, the state of the guide, and the index of the motor will all affect the control of the tension. In the actual production process, the workshop adopts a DC motor drive, and the dynamic speed will be equivalent. The equivalent is not stable, and there is a disadvantage of a large motor speed drop. , after the rolling material passes through the rolling mill, it is very difficult to adjust the tension of the looper, which leads to partial stacking of the rolling material, and the arc of the material in the looper area is too high, resulting in a relatively large tension value between the stands, which has an impact on production control

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