| Pipe transmission equipment in pipe manufacturing factory is ancillary equipment in this field, however its function closely relates to productive efficiency, human cost, persons'safety and reliable performance of the equipments. So far, although there are more than 100 domestic pipe manufacture factories, however, none of them has auto-controlled system with auto-transmission. They are all in the manual mode without any exception, while only Eure-pipe and Japan SMI possess the technique of auto-transmission abroad.Starting with pipe transmission process requirements and features, this paper has provided an overall analyze on transmission equipments from the aspect of electric control with the electric system control requirements and the system proposals, which has taken the Profibus-DP field bus as the main line, the Simens S7-300 as its core, the proximity transducer, the sensor, the coder and etc as detecting elements, the frequency transformer, the electromagnetic valve as the drive execute components and realized the whole process in modes of semi-automation, manual and automation according to the pipe transmission requirements. This paper emphasizes on the idea of the ways to realize the automatic pipe transmission.Besides, this paper has made analyze on existent interferences in electric transmission system and proposed its solutions.Profibus-DP has run into formal application in electric auto-control system of pipe transmission equipments on June 4th, 2009. Its running behavior within this year has verified its reliability and practicability and accomplished its design purpose and requirements. |
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