追(zhui)(zhui)蹤(zong)(zong)系統是包裝機(ji)的控制核心，采用(yong)正(zheng)(zheng)反向(xiang)雙向(xiang)追(zhui)(zhui)蹤(zong)(zong)，進(jin)一步(bu)提(ti)高(gao)(gao)了(le)追(zhui)(zhui)蹤(zong)(zong)精度。機(ji)器(qi)運(yun)(yun)(yun)行后，薄膜(mo)標(biao)(biao)(biao)記(ji)傳(chuan)感器(qi)不(bu)斷的在檢測(ce)薄膜(mo)標(biao)(biao)(biao)記(ji)（色標(biao)(biao)(biao)），同(tong)時(shi)機(ji)械部分的追(zhui)(zhui)蹤(zong)(zong)微動(dong)(dong)(dong)開關檢測(ce)機(ji)械的位(wei)置，上述兩種(zhong)信(xin)號送(song)至PLC，經程(cheng)序(xu)運(yun)(yun)(yun)算后，由(you)PLC的輸出(chu)Y6（正(zheng)(zheng)追(zhui)(zhui)）、Y12（反追(zhui)(zhui)）控制追(zhui)(zhui)蹤(zong)(zong)電機(ji)的正(zheng)(zheng)反追(zhui)(zhui)蹤(zong)(zong)，對包裝材料在生(sheng)產過程(cheng)中(zhong)出(chu)現(xian)的誤差(cha)及(ji)時(shi)發現(xian)同(tong)時(shi)準(zhun)確的給予(yu)補償和糾正(zheng)(zheng)，避免了(le)包裝材料的浪費。檢測(ce)若在追(zhui)(zhui)蹤(zong)(zong)預定(ding)次(ci)數后仍不(bu)能達(da)到技術(shu)要求，可自動(dong)(dong)(dong)停機(ji)待檢，避免廢品的產生(sheng)；由(you)于(yu)采用(yong)了(le)變頻調(diao)速(su)，大幅(fu)減少了(le)鏈條(tiao)傳(chuan)動(dong)(dong)(dong)，提(ti)高(gao)(gao)了(le)機(ji)器(qi)運(yun)(yun)(yun)轉(zhuan)的穩定(ding)性(xing)和可靠(kao)性(xing)，降低(di)(di)了(le)機(ji)器(qi)運(yun)(yun)(yun)轉(zhuan)的噪(zao)音。保(bao)證(zheng)了(le)該包裝機(ji)高(gao)(gao)效、低(di)(di)損耗、自動(dong)(dong)(dong)檢測(ce)等多功能、全自動(dong)(dong)(dong)的高(gao)(gao)技術(shu)水平。