The Design of Monitoring System in Large Hydraulic Press Aiming at the Precise Closed-Loop Control

Abstract:

In the research and development of the precise closed-loop control system in large hydraulic press, the touch screen and PLC are frequently applied to design, debug and test for the system. Though a better closed-loop control characteristic can be acquired after repeated testing by this way, the comprehensive state data of hydraulic press are unable to get, which leads to a long research cycle and also restricts the maintenance and upgrade with the equipment in the later period. In order to obtain the whole state information of hydraulic press easily and effectively, a monitor system of precise closed-loop control in large hydraulic press is designed. Based on reasonable cooperation of sensors and high-speed data-acquisition card, high-speed and precise signal acquisition is realized. In addition, data-acquisition software program is designed base on LabVIEW, it can achieve the functions of collecting, storing, displaying and analyzing data. Through the real measuring and analyzing on a certain large ceramic hydraulic press, the status of key parameters can be acquired effectively during the whole pressing process. So the monitoring system supplies the significant data basis to the precise closed-loop control, accelerates the design and development of high characteristic precise closed-loop control and also strongly supports to the maintenance and upgrade with the equipments in the later period.

• Periodical: Advanced Materials Research (Volumes 989-994)
• Pages: 3062-3069
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.989-994.3062
• Online since: July 2014
• Authors: Heng Du*, Bin Huang, Lin Wang, Shu Mei Chen
• Keywords: Closed-Loop Control, Hydraulic Press, LabVIEW, Monitor, Test

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