真(zhen)空(kong)(kong)(kong)(kong)包(bao)裝機按照抽(chou)(chou)氣(qi)(qi)方式(shi)不同(tong)會有內抽(chou)(chou)式(shi)和外抽(chou)(chou)式(shi)兩種類型，它們都是由真(zhen)空(kong)(kong)(kong)(kong)系統(tong)、抽(chou)(chou)充氣(qi)(qi)密封系統(tong)、熱壓封合系統(tong)、電(dian)器控制系統(tong)等組成(cheng)。其中(zhong)內抽(chou)(chou)式(shi)包(bao)裝機是有真(zhen)空(kong)(kong)(kong)(kong)室的，物品可以擺放在(zai)真(zhen)空(kong)(kong)(kong)(kong)室里，合上(shang)真(zhen)空(kong)(kong)(kong)(kong)機的真(zhen)空(kong)(kong)(kong)(kong)室上(shang)蓋后，就(jiu)(jiu)形成(cheng)密閉的空(kong)(kong)(kong)(kong)間，這(zhe)樣就(jiu)(jiu)可以進行抽(chou)(chou)真(zhen)空(kong)(kong)(kong)(kong)工(gong)作了，但是在(zai)工(gong)作過程(cheng)中(zhong)，有時會出現(xian)真(zhen)空(kong)(kong)(kong)(kong)蓋合不上(shang)的情況(kuang)