自動(dong)(dong)封口包(bao)(bao)裝(zhuang)(zhuang)設(she)備(bei)是通過光(guang)感傳感器來(lai)(lai)實(shi)現(xian)光(guang)標定(ding)(ding)(ding)位(wei)，然后通過光(guang)控(kong)系(xi)(xi)統(tong)對(dui)包(bao)(bao)裝(zhuang)(zhuang)系(xi)(xi)統(tong)進行同(tong)步控(kong)制，以(yi)此完成自動(dong)(dong)封口包(bao)(bao)裝(zhuang)(zhuang)。用(yong)來(lai)(lai)實(shi)現(xian)定(ding)(ding)(ding)位(wei)控(kong)制的(de)光(guang)電(dian)技術可提(ti)供一(yi)種(zhong)用(yong)固定(ding)(ding)(ding)標志點結合線性或(huo)旋轉運動(dong)(dong)部件來(lai)(lai)實(shi)現(xian)簡單可重復(fu)運動(dong)(dong)的(de)方法。它利用(yong)了與(yu)一(yi)對(dui)光(guang)電(dian)管并聯工作的(de)一(yi)個(ge)功率運放的(de)快速(su)響應時(shi)間。由(you)此實(shi)現(xian)的(de)一(yi)種(zhong)元件數(shu)量很(hen)少的(de)系(xi)(xi)統(tong)，能在明確規(gui)定(ding)(ding)(ding)的(de)工作環境(jing)下，具有很(hen)高的(de)可靠性、準確性以(yi)及可重復(fu)性。

    在線連卷制袋機在(zai)自(zi)動(dong)(dong)包裝過程中(zhong)(zhong)，由于(yu)商標印刷誤差，薄(bo)膜(mo)變(bian)形不一，牽(qian)引輥打滑，送紙(zhi)，拉紙(zhi)，中(zhong)(zhong)封(feng)(feng)，橫(heng)封(feng)(feng)各部(bu)分速(su)度的差異(yi)，橫(heng)封(feng)(feng)切(qie)斷位(wei)置可(ke)能偏離規定(ding)(ding)部(bu)位(wei)，甚至因誤差積累而(er)切(qie)到(dao)商標圖案上(shang)。為此，先進的包裝機(ji)都配(pei)有光(guang)電跟蹤自(zi)動(dong)(dong)控(kong)(kong)制系(xi)統，以控(kong)(kong)制封(feng)(feng)切(qie)位(wei)置使(shi)之(zhi)保持(chi)正確，保證(zheng)每次都在(zai)定(ding)(ding)位(wei)標記確定(ding)(ding)的位(wei)置處封(feng)(feng)接切(qie)斷，不致于(yu)封(feng)(feng)切(qie)到(dao)圖案上(shang)。這(zhe)就是光(guang)感傳感器在(zai)自(zi)動(dong)(dong)封(feng)(feng)口(kou)控(kong)(kong)制系(xi)統的主(zhu)要(yao)應(ying)用。