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PLC基于張力控制系統(tǒng)的發(fā)展
摘要：纖維纏繞張力是影響復(fù)合材料的成型技術(shù)的一個(gè)重要因素，它還直接影響最終產(chǎn)品質(zhì)量，因此在纖維纏繞技術(shù)中的張力控制是一項(xiàng)目前復(fù)合材料成型的關(guān)鍵技術(shù)。本文介紹了一種利用閉環(huán)張力控制系統(tǒng)與可編程邏輯控制器（ PLC ）的功能模塊作為控制核心，并且利用交流（ AC ）伺服電機(jī)作為執(zhí)行元件和半徑，然后利用上述設(shè)備來完成實(shí)時(shí)的半徑賠償，從而實(shí)現(xiàn)控制要求。該機(jī)制建立了張力控制系統(tǒng)的分析和數(shù)值模擬，以及補(bǔ)償技術(shù)的半徑滾動(dòng)分析。通過實(shí)驗(yàn)，結(jié)果表明，該系統(tǒng)是合格的高控制精度和高反應(yīng)速度的一個(gè)張力控制系統(tǒng)。

關(guān)鍵詞：張力控制;可編程序控制器;數(shù)控纏繞機(jī);交流數(shù)字伺服電機(jī)

Development of PLC--based Tension Control System
Abstract
Fiber winding tension is an important factor in the molding techniques of composite material which influences the quality of winding product directly，and the tension control is a key technique in fiber winding techniques．This paper introduces a closed-loop tension control system with the programmable logic controller(PLC)with function modules as its control kernel，the alternating current (AC)servo motor as execute element and the radius—following device to accomplish the real-time radius compensation．The mechanism of the tension control system is analyzed and the numerical model is set up．The compensation technique of the radius of the scroll is analyzed．Experimental results show that the system is well qualified with high control precision and high reaction speed．
Keywords: tension control；PLC；numerical control winding machine；AC digital servo motor