Shanghai Daoqin Plastics Co., Ltd.

       large more polymer in made formed most product front, must combined mixing/compounding, rear pelletizing, formed is can sales plastics raw materials . has many different pelletizing device design, 但一切 pelletizing device can separation is large type: cold pellet cutting system and hot pellet cutting system. main/primary difference in pellet cutting process time 安排. cold pellet cutting system, in processing process from already solid polymer pellet cutting; in hot pellet cutting system in, melt polymer from 口模出现时即进行 pellet cutting, in lower for material cooling. types pellet cutting system has its excellent disadvantages.
 

cold pellet cutting system
cold pellet cutting system 包括口模, cooling 区（风 cold or water cold ）, drying 区（ if using/adopting water cold ） and pellet cutting 室. cold pellet cutting system has large type, sheet/slice material pelletizing machine and strip/profile material pelletizing machine.
sheet/slice material pelletizing machine melt polymer from mixing/compounding equipment 流经一 belt/tape 式口模 or machine calendering formed thick degree polymer sheet/slice material. sheet/slice material in process in through 一段距离凝 solid cooling, rear in 一 仓室 in use pellet cutting formed or 方形粒 material. sheet/slice material pelletizing is manufacturing material most methods, can used for from nylon to polyvinyl chloride (PVC) various different polymer. production amount large ． pelletizing can force can 达1843.69kg/h. this is types cold pellet cutting methods, dispersion ratio from melt polymer pellet cutting methods is high. solid 态切割 polymer lifespan relatively short, formed powder formed is issues. for has polymer can to certain “粒链” phenomenon.
strip/profile material pelletizing machine use history and sheet/slice pelletizing machine 同样悠久. 包括口模, cooling 段（ water or machine ）, drying 段（ if using/adopting water cold ） and pellet cutting 刀. use extrusion machine or gears extrusion melt polymer through water 平安装 口模而形 formed strip/profile material （现代化 口模经 precision machine processing, uniform add hot, 以产出 quality stability strip/profile material ）. strip/profile material from type rear, use machine or gas ／ true 空设施进行 cooling, or use water cooling. if using/adopting water cold, strip/profile material through drying 段, use strong/high made 通风吹 remove water separation, rear will strip/profile material pellet cutting 室. utilizing for solid and 旋转刀 剪切 function, strip/profile material 精确 切 formed long degree.
粒 material is 3.175 mm, long 3.175mm, 棱角清晰.
传统 拉 made strip/profile material methods is tensile strip/profile material through cooling 段（ most commonly used is water 浴）, has formed strip/profile material or dimensions 不一致. this most Common melt strong/high degree relatively polymer, polypropylene (PP), polyester and nylon and other. strip/profile material 跌落时, material waste, therefore as 工需密切 attention/notes. if strip/profile material made 不一致, lower material 需 筛.
its it formed strip/profile methods can 无需操 as 工密切监视, its method is using/adopting electrical machine has material machine, in from to pellet cutting machine 处支承 and separation strip/profile material. this type of by force strip/profile material dimensions comparison uniform, 不会跌落因而报 waste relatively less. this category of methods has can make its production can force 达6803.89 kg／h, comparison tensile formed strip/profile methods has 约 1814.37 kg／h, is as can tube/pipe has 限数目 strip/profile material.
strip/profile material production cost high, as 简便, 且清洗便捷. this for color material mixed has its advantages, is different color material more must 彻底清洗 equipment. is, strip/profile methods disadvantages is cooling 段需占 use 空间, its long degree polymer temperature degree requirements 确定.
 

模面 hot system
模面 hot system has types basic type 式, gas pelletizing machine, water （ water ring ） pelletizing machine and water lower pelletizing machine. although this category of system can has different design, type system 包括口模, material 室, electrical 动旋转叶刀, cooling and drying material methods （ if using/adopting water cold ）.
口模 is hot pelletizing system important parts. it or water 平安装, commonly used 油, or or belt/tape electrical hot device add hot. electrical hot usually used for relatively small type 口模; relatively large type 口模通 commonly used or add hot. structure material has different 材质, tube/pipe using/adopting types material or types add hot 介质, 口模孔口直径必 must uniform; need has hot amount 维持整 extrusion process in polymer temperature degree; pellet cutting for 旋转 模面必 must tough light slip —— this is manufacturing uniform material 必需.
当熔 melt polymer by extrusion 口模时, very high speed pellet cutting will its formed material. type is pellet cutting or or separation 贴近模面. material by lower rear, by force function by 抛离刀, 并输送至 cooling 介质处. pellet cutting dimensions, 形状, and methods can has different. has system in pellet cutting has elastic add 载荷自动 adjustment pellet cutting 刀, 口模间 间距; has system must use adjustment pellet cutting 刀至口模 间距. due to material lifespan 取决于刀一模 for in degree, polymer abrasion property and as 工 进取 property, in melt lower polymer material is can 取.
gas pelletizing machine recommendation used for for hot and long time polymer, polyvinyl chloride (PVC), TPR and crosslinked polyethylene (PE). pellet cutting speed rate high 达4989.52kg/h polymer from extrusion machine pellet cutting 室 流径 need maintain can can short, using/adopting most less hot amount. polymer through extrusion 时, 贴模面旋转 旋 force will it formed material. material lower rear, by 抛离旋转刀, is in design pellet cutting in strong/high made ring flow gas 捕获. gas for material surface 进行初步淬 cold, it belt/tape pellet cutting 室而送至 cooling 区.
流化床 drying device by using/adopting cooling material. material 沿 一 can adjustment 斜面溜 lower, ring machine 则鼓风 through this material. adjustment 斜面倾角 can long or shrink short material in drying device in time. general purpose cooling methods is material from pellet cutting in 卸出送入一 water 槽, rear use 流化床 drying device or drying device remove water separation.
 

喷 water pelletizing machine , remove melt viscosity low or tool has viscous property polymer outer, suitable for large more polymer. this category of equipment also is water ring pellet cutting machine, pelletizing speed rate to 13607.77 kg／h.
熔 melt polymer from hot extrusion, by 模面旋转 旋转刀切 formed material. this type of system color is its design water pellet cutting 室. water 呈螺旋线绕因 flow, 直至流出甘粒室. material lower rear, by water 流, 进行初步淬 cold. material water 浆排入粒 material by 进一步 cooling, rear 送入离心 drying device remove water separation.
 

water lower pelletizing machine and gas pelletizing machine and water pelletizing machine similar, different is it has 一股平稳 water 流流 模面, and 模面直接接触. pellet cutting large small 以恰足以 make pellet cutting 刀自由 转动越 模面而不限 made water is degree. melt polymer from extrusion, 旋转刀切割粒 material, material by 经 调 temperature water belt/tape pellet cutting 室而进入离心 drying device. in drying device in, water by 排回贮罐, cooling ring again use; material through drying device remove water 份.
water lower pelletizing machine use hot distribution uniform has 特殊绝 hot 设施 口模. small type pellet cutting using/adopting electrical hot; large type pellet cutting using/adopting hot or add hot 口模. process use water 常规情况 lower add hot most high temperature degree, its hot degree 应不足以 for material flow formed has effect/influence. water lower pelletizing machine used for large more polymer, has machine type can to 22679.62kglh pelletizing can force. used for low viscosity or viscous property polymer pellet cutting water 流 口模模面 methods is large advantages, for has polymer nylon and certain Brand polyester this features can can 引起口模冻结. other advantages has: is in melt lower pellet cutting, water also 起 声障 function, dispersion relatively low; and cold system comparison more pellet cutting 刀 次数 relatively less.
 

离心 force pelletizing machine
离心 force pelletizing machine due to use or need most low degree hot amount, is hot pellet cutting machine, also due to is for melt polymer pellet cutting, is cold system, is formed type. this category of pelletizing machine features is using/adopting 圆柱形口模, extrusion its distribution. melt polymer in at atmospheric pressure 喂入. 由转子 upper melt deep degree, 转子转 speed and polymer versus for density and other formed extrusion pressure. 随 圆柱形口模随 its 心轴以 high speed 旋转, force function make melt polymer uniform 流至口模 upper 各 孔口. polymer from extrusion 孔流出 rear, 旋转 口模 will strip/profile material toward pellet cutting 刀. pellet cutting can use solid 定式, 区常按“ belt/tape 锯”形式 make it in 两 转盘 upper separation slow 转动. this slow has make pellet cutting abrasion loss uniform maintain low temperature. lower material rear, material due to its 本身动 amount function, 沿 一直线轨迹抛入一 仓室 inner water cooling, rear using/adopting similar other hot pelletizing machine application methods drying.  

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