真(zhen)空(kong)(kong)(kong)包裝(zhuang)機按照抽氣(qi)方式不同會有內抽式和外抽式兩種(zhong)類(lei)型，它們都是由真(zhen)空(kong)(kong)(kong)系(xi)統(tong)、抽充氣(qi)密(mi)封(feng)系(xi)統(tong)、熱壓封(feng)合(he)系(xi)統(tong)、電器控(kong)制系(xi)統(tong)等組成(cheng)(cheng)。其中內抽式包裝(zhuang)機是有真(zhen)空(kong)(kong)(kong)室的(de)，物品(pin)可以(yi)擺(bai)放在真(zhen)空(kong)(kong)(kong)室里，合(he)上(shang)真(zhen)空(kong)(kong)(kong)機的(de)真(zhen)空(kong)(kong)(kong)室上(shang)蓋后(hou)，就(jiu)形成(cheng)(cheng)密(mi)閉的(de)空(kong)(kong)(kong)間，這樣就(jiu)可以(yi)進行抽真(zhen)空(kong)(kong)(kong)工作(zuo)了，但是在工作(zuo)過程(cheng)中，有時會出現真(zhen)空(kong)(kong)(kong)蓋合(he)不上(shang)的(de)情況(kuang)