Shanghai Daoqin Plastics Co., Ltd.

一, brief introduction 　　 world upper “注-吹” molding process methods 源于二十世纪五十 year 代初. outer polyolefin (hdpe, pp)药 use plastics bottle application 早于七十 year 代. related equipment research manufacturing injection molding parts processing has USA wheaton, jomar, Germany battenfeld, bekum, Japan asb, solid, Italy uniloy milacron company, main/primary machine type is method 三工位, USA, Japan using/adopting screw structure, Germany, Italy using/adopting screw structure. 　　国 inner 第一批 system 引进“注-吹”流 water production product packaging plastics container injection molding parts processing has force made injection molding parts processing (1984 year) and Shanghai large 明玻璃 injection molding parts processing (1985 year). is 我国消化 absorption comprehensive polyolefin use plastics bottle a large amount of property as. 　　江苏维达 machine has company 自1989 year 首家研 made “三工位”一步 method “注-吹” molding machine, 于1991 year 首批投放 market, 经 十 more year force, long 足进步. 随 我国医药 industrial development and large use 户 支持, in recent years year 100 strip/profile production 线 规模 high speed development, make China product packaging container (especially is solid material sheet/slice agent, packaging) overall quality water to relatively large degree improves. 　　二, use plastics bottle commonly used production process and raw materials selection 　　1, production process 　　(1)“挤吹”extrusion-blow moulding also in extrusion blow molding. extrusion machine extrusion tube/pipe, use 剪刀(人工) or plant/unit (自动)切 formed small rear to injection molding parts mold inner made molding. 　　 advantages: equipment simple, investment small, cost price low. 　　 disadvantages: bottle 口不平, very 差. raw materials usually selection ldpe, retardant property can low 于hdpe/pp, 装药保质贮存期 short. 　　(2)二步 method “注-吹”two steps injection-blow moulding. “ injection, blow molding ”由独立 两台 machine separation 开进行, 俗称“二步 method ”. 第一步: 由一台普通 injection molding parts machine injection molding parts molding tube/pipe 坯, tube/pipe bottle separation (bottle 口, 螺纹) already molding; 第二步: will tube/pipe in 蜂窝状 add hot device or 自动循 ring add hot belt/tape upper add hot temperature, rear to bottle machine use pressure shrink gas made molding. 　　 advantages: equipment relatively simple, investment relatively less. bottle relatively 平整, 密封良 good. product types development fast, injection molding parts mold use relatively low, cost price in, low. 　　 disadvantages: injection tube/pipe and blow molding separation 步进行, easy 传递污染, difficult ensure, product property 差, 不太适应 large amount production. 　　(3)一步 method “注-吹”one step injection-blow moulding. “ injection, blow molding ” in 同一台 machine upper formed. according to different machine types also separation is 三工位 and 二工位“注-吹”. 三工位“注-吹” made bottle machine 三 工位以120°角 formed and other 边三角形 distribution, 第一工位 is injection molding parts molding 工位, 第二工位 is blow molding 工位, 第三工位 is bottle 工位. 三 工位 can meanwhile 运行, production efficiency high, cycle short, but also can and belt/tape 连接自动计数 packaging, true positive achieve use plastics bottle production full process in and 人手“无接触”, ensure product 卫生洁净. 二工位“注-吹” plastics machine 二工位 can upper, lower or front rear 排列; 第一工位 is injection molding parts molding 工位, 第二工位 is blow molding 工位; due to less specialized bottle and cooling 工位, therefore relatively difficult achieve full 自动计数 packaging (generally is dispersion 装人工计数). another, production cycle relatively long, production efficiency low 于三工位. 　　 advantages: 自动化程 degree high, production can force high. bottle 口平整 degree high, 密封极 good. selection hdpe/pp raw materials, bottle uniform, retardant property can excellent 良, 装药保质贮存期 long. currently, inner standards 化药包 injection molding parts processing basic upper using/adopting method “注吹” process equipment, its in 以“三工位” structure is 主. 　　 disadvantages: equipment investment relatively large, injection molding parts mold complex, system requirements relatively high. 不太适应 small product types, small amount production. large amount production can obtain high quality low cost, 经济效益 good. 　　2. commonly used plastics raw materials 　　 solid material packaging selection hdpe/pp, method “注-吹” process production polyolefin plastics container; liquid material 灌装宜 selection pet/pp“注-拉-吹” process production plastics container. 　　(3) color agent and processing additives 　　药 bottle color agent usually selection oxidation titanium tio2(锐 titanium type or 金红石 type), its in tio2 content ≥98％wt, add amount 1.0～1.5％wt. 　　 commonly used processing additives has lubricant hard acid zinc, polyethylene wax. is white powder 末, add amount 0.1～1％wt. 　　 in recent years, is meet/satisfy gmp and grade requirements, generally will tio2, hard acid zinc, polyethylene wax and ldpe(high m·i) mixed combined in made as formed concentrated shrink masterbatch, can large large reduce production process in powder 尘污染. 　　典 type tio2 masterbatch formulation formed lower: tio2(特 grade) 60％ hard acid zinc 8％ polyethylene wax 10％ ldpe 22％　　 for/regarding solid material packaging hdpe, pp is comparison combined 适 材 material, tool has excellent resistant water gas property can, can has anti product 吸潮变质. for/regarding easy oxidation 变质 药 material use. ldpe retardant oxygen property can 极差, production use plastics bottle, more can 灌装贮存期 relatively long material. pet for water and oxygen gas has excellent retardant property, appearance transparent, is liquid material (糖浆, liquid type) selection. 　　三, use plastics container “注-吹” molding equipment and injection molding parts mold 　　 structure 包括: injection molding parts 模(初 type 模), blow molding 模(molding 模), rod (共三组), hot runner, nozzle, bottle sheet/plate, rod base/seat large separation formed. 　　 injection molding parts mold material, thermal expansion coefficient, surface light degree, processing process and degree, design water 平, debugging experience, especially is injection molding parts mold temperature 调控都 for most bottle product quality generate effect/influence. 　　维达华丰 precision injection molding parts mold has company 系维达 machine sleeve/set design production “注-吹” injection molding parts mold manufacturing company, production various specifications product types precision injection molding parts mold 达300sets/y, tool has 三维造 type design cad, cam technology, full Imported USA that processing in sleeve/set, Imported Switzerland, Taiwan high degree electrical 脉冲6台, ensure injection molding parts mold processing degree and quality.