大型中空塑料(liao)中空吹塑(su)機(ji)是把注塑機(ji)的注射塑化機(ji)構(gou)與中空(kong)(kong)(kong)吹(chui)塑機(ji)的吹(chui)塑合模機(ji)構(gou)互(hu)相結合起來的綜(zong)合型(xing)中空(kong)(kong)(kong)塑料中空(kong)(kong)(kong)吹(chui)塑機(ji)，吸取和(he)發揮兩(liang)種(zhong)機(ji)械的各自特長。

達到(dao)型坯重量(liang)重復精度高(gao)、塑(su)(su)化(hua)能(neng)力(li)高(gao)、換(huan)(huan)(huan)色(se)(se)換(huan)(huan)(huan)料(liao)(liao)(liao)(liao)(liao)時間(jian)(jian)短、熔體融合縫區(qu)的(de)強(qiang)度高(gao)。擠吹(chui)(chui)大(da)型中(zhong)(zhong)空(kong)(kong)(kong)塑(su)(su)料(liao)(liao)(liao)(liao)(liao)中(zhong)(zhong)空(kong)(kong)(kong)吹(chui)(chui)塑(su)(su)機一般采用儲料(liao)(liao)(liao)(liao)(liao)式(shi)機頭，內部(bu)結構復雜，零件多，所以從儲料(liao)(liao)(liao)(liao)(liao)式(shi)機頭本身的(de)特點(dian)，不(bu)可避免存在換(huan)(huan)(huan)色(se)(se)換(huan)(huan)(huan)料(liao)(liao)(liao)(liao)(liao)時間(jian)(jian)長，計量(liang)精度不(bu)準等(deng)缺點(dian)。注(zhu)吹(chui)(chui)大(da)型中(zhong)(zhong)空(kong)(kong)(kong)塑(su)(su)料(liao)(liao)(liao)(liao)(liao)中(zhong)(zhong)空(kong)(kong)(kong)吹(chui)(chui)塑(su)(su)機的(de)機頭把擠吹(chui)(chui)中(zhong)(zhong)空(kong)(kong)(kong)塑(su)(su)料(liao)(liao)(liao)(liao)(liao)中(zhong)(zhong)空(kong)(kong)(kong)吹(chui)(chui)塑(su)(su)機儲料(liao)(liao)(liao)(liao)(liao)式(shi)機頭中(zhong)(zhong)的(de)儲料(liao)(liao)(liao)(liao)(liao)和注(zhu)射擠出(chu)型胚的(de)兩(liang)種(zhong)功能(neng)分離出(chu)來，由注(zhu)射塑(su)(su)化(hua)機構完成(cheng)，這樣，使(shi)機頭具有連續式(shi)機頭易換(huan)(huan)(huan)色(se)(se)換(huan)(huan)(huan)料(liao)(liao)(liao)(liao)(liao)的(de)優(you)點(dian)。