Shanghai Daoqin Plastics Co., Ltd.

injection molding machine is will plastics hot processing features and metal melt pressure molding principle combined 起 一 types specialized equipment. most 初 柱塞式 injection molding machine, to 40 year 代末才 development 出预塑化 screw injection molding machine. rear, development focus/key point main/primary is 围绕 预塑化 screw injection molding machine 进行, already rear di screw, gas and other 先进形式.

　　1980 year France manufacturing 出当时 world upper most large screw injection molding machine, one-time injection amount 达170kg. from 80 year to year, injection molding machine development main/primary in in several 方面: micro 自动化 control system and various equipment in 自动化模塑 in application; precision machine and high property can liquid pressure system combined; various specialized injection molding machine development and electrical 脑辅助 design for complex made parts plastics flow analysis 以决定 most excellent injection molding conditions; various energy saving technology in injection molding machine upper application.

　　一, injection molding machine as principle

　　 injection molding machine injection molding machine.

　　 injection molding is utilizing plastics hot material property 质, material material from material add material in, material outer add hot add hot, make material material melt, in material inner has in outer force function lower 驱动旋转 screw, material material in screw di heavy function lower 逐渐塑化, melt and 均化, screw 旋转时, material material in 落槽摩 scratch force and force function lower, already melt material material to screw 头部, and meanwhile, screw in material material function lower rear 退, make screw 头部形 formed material 空间, formed process, rear screw in injection active 塞推理 function lower, high speed, high pressure, will material inner melt material through nozzle injection to mold type in, type in material holding pressure, cooling, solid type rear, mold in clamping machine function lower, mold, through ejection plant/unit type good products from mold ejection lower.

　　二, injection molding machine will formed structure analysis

　　 injection molding machine according to injection molding process requirements is machine electrical 一体化 very strong/high machine types, main/primary injection parts, clamping parts, machine 身, liquid pressure system, add hot system, control system, add material plant/unit and other formed.

　　 currently, Common injection molding plant/unit has mono 缸形式 and di type 式.

　　塑化部 parts has 柱塞式 and screw types. plastics in screw 连续推动 process in, achieve material 理状态 变化, most rear melt 状态而 by mold cavity. therefore, 塑化部 parts is formed uniform 塑化, achieve amount injection core parts.