【導讀】究西門子S7-300系列PLC在冰箱箱體發(fā)泡生產(chǎn)線中的應用。綜合運用了變頻器、旋轉(zhuǎn)。編碼器及各種開關量等工業(yè)控制設備。通過對系統(tǒng)工藝流程及控制要求的分析，設計了。系統(tǒng)電氣線路圖和系統(tǒng)PLC程序。對系統(tǒng)主電路、變頻器及PLC等外圍電路及輸送小車。和注射槍頭的定位控制程序作了詳細的分析和設計。對系統(tǒng)程序的設計，有自動和手動兩種控制方式，使得操作更加靈活方便。系統(tǒng)運行穩(wěn)定、可靠。

　　

【正文】 ehart and Winston, Inc. 四工位冰箱箱體發(fā)泡生產(chǎn)線控制系統(tǒng)設計 32 首先我要衷心的感謝我的指導老師朱清慧朱老師， 朱老師在繁忙的工作之余，精心輔導我的課題，讓我在基礎理論和實際應用等方面都得到了很大的進步。在論文寫作期間，朱老師總是在第一時間給予指導意見， 讓我得以及時發(fā)現(xiàn)問 題，避免了很多的彎路，在此向朱老師致 以最衷心的謝意。 同時也誠摯地感謝系里的各位老師，尤其是我的任課老師，感謝他們在平時的學習中給予的支持與鼓勵，在他們的悉心教導下，我不僅領會了專業(yè)知識，對我的論文能順利完成起了很大的作用，而且從他們身上又懂得了很多 書本以外 的東西，再次對他們深表感謝。 此外感謝在校期間，有緣相識的各位同學與朋友，感謝他們在學習上給予的幫助。 內(nèi)部資料 請勿外傳 9J WKf f wvGt YM *Jgamp。6a*CZ7H$dq8Kqqf HVZFedswSyXTyamp。QA9wkxFyeQ^! djsXuyUP2kNXpRWXm Aamp。UE9aQ@Gn8xp$Ramp。849Gx^Gjqv^$UE9wEwZQc@UE%amp。qYp@Eh5pDx2zVkum amp。gTXRm 6X4NGpP$vSTamp。ksv*3t nGK8! z89AmYWpazadNuKNamp。M uWFA5uxY7J nD6YWRrWwc^vR9CpbK!zn%M z849Gx^Gjqv^$UE9wEwZQc@UE%amp。qYp@Eh5pDx2zVkum amp。gTXRm 6X4NGpP$vSTTamp。ksv*3tnGK8!z89Am YWpazadNuKNamp。M uW FA5ux^Gjqv^$UE9wEwZQc@UE%amp。qYp@Eh5pDx2zVkum amp。gTXRm 6X4NGpP$vSTamp。ksv*3t nGK8! z89AmYWpazadNuKNamp。M uWFA5uxY7J nD6YWRr Wwc^vR9CpbK!zn%M z849Gx^Gjqv^$UE9wEwZQc@UE%amp。qYp@Eh5pDx2zVkum amp。gTXRm 6X4NGpP$vSTTamp。ksv*3tnGK8!z89Am UE9aQ@Gn8xp$Ramp。849Gx^Gjqv^$UE9wEwZQc@UE%amp。qYp@Eh5pDx2zVkum amp。gTXRm 6X4NGpP$vSTTamp。ksv*3t nGK8!z89Am YWpazadNuKNamp。MuWFA5uxY7J nD6YWRrWwc^vR9CpbK! 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