Continuous tube mill control system and method

Abstract

The invention discloses a continuous rolling tube unit control system and method. The system comprises a plurality of electrical rooms, each electrical room corresponds to one mechanism of a pluralityof mechanisms correspondingly, the electrical rooms are placed nearby with the corresponding mechanisms, each electrical room is internally provided with a first PLC, a second PLC and a transmissiondevice, each first PLC is connected with the corresponding mechanism through the corresponding transmission device, each second PLC is used for adjustment and control of work environment information and upstream information of the corresponding transmission device, and the first PLCs and the second PLCs are in electric connection and are in electric connection with an engineer station correspondingly. According to the continuous rolling tube unit control system and method, the multiple electrical rooms are formed by splitting, each electrical room is arranged nearby at the corresponding mechanism, the cable lengths between the transmission devices and the corresponding mechanisms are relatively short, the transmission accuracy and stability are improved, the cable cost is saved, the work environment information and the upstream information of the transmission devices are adjusted and controlled through the second PLCs, and management and maintenance performed on the split electrical rooms are facilitated.

Description

technical field [0001] The invention relates to the technical field of steel pipe forming, in particular to a control system and method for a continuous pipe rolling unit. Background technique [0002] The steel pipe continuous rolling mill consists of multiple main equipment, and each main equipment contains multiple mechanisms. For example, a common continuous pipe rolling unit includes: annular furnace, piercer, capillary traverse, continuous pipe mill, reheating furnace, stretching and reducing machine, cooling bed, pipe sawing, straightening machine, ash blowing , Flaw detector, packaging and collection mechanism. Each mechanism runs under the drive of a motor, and the motor is connected to a control module (such as a PLC) through a transmission device (such as a frequency converter), so that the operation of each mechanism is carried out under the control of the control module. The number of mechanisms in the continuous pipe rolling unit is relatively large, resultin...

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Problems solved by technology

[0004] The inventor found at least the following problems in the prior art: the control modules are centrally placed in the electrical room, so that the distance between the transmission device and the external mechanisms is relatively long, and the long-distance control leads to low transmission accuracy and poor anti-interference ability

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