The Electric System Of The 1850mm Cross Cut Line And The Deviation Analysis Of The High Speed Rotary Shear

With the improvement of the national income and the standard of living of the people, the quality and requirement of the product have been improvement, it force every walk of life improve the its own standard of the automation. With the application and development of the computer control technology, the information technology, the standard of the automation control of the manufacturing have been developed rapidly. In the industry computer control system, the proportion between the performance and the price can be improvement through the development of the control software especially. So it is necessary to take a lot of time to digest and absorb the advanced control idea and the mathematic model of the introduce into equipment, and in the reform and newly building item, adopt the dependable import hardware, base upon our develop control software, only this can reduce our invest cost by a long way, increase our colligate rivalrousness, stand upon the international market.The high speed rotary shear is a new kind of flying shear at the middle term of 70th , it can scaled cutting the sheet during its running. The rotary flying shear has a simple structure, less heavy, a wildly range of scaled cutting, highly dimensional precision, and more important, it can scaled cutting without grade. So, it has been improvement rapidly as it had been published. By far, Japan, Korea and the SWAP, the Luo Yang Steel Factory and Zhen Jiang Aluminium Factory adopt this kind of equipment.In the new item thick shear of the hot rolling factory, the electric system include the Siemens drivers, the Japan mitsubishi PLC and the workstation. This article introduces the structure of the total line, the configuration of the electric equipment, and the scaled cutting control system of rotary flying shear, and the mathematic model of cutting speed control is derived on this basis. It focuses on analyzing the main causes of cutting deviation and therefore proposes an effective solution. Through system commissioning and production practice, it shows that the actual cutting accuracy can be controlled within the range of 1.0mm,and satisfactory results can be obtained by the use of this control model. Therefore, the deviation analysis is of great practical significance for the design of cutting control system.