Shanghai Daoqin Plastics Co., Ltd.

        1 主题 inner and suitable scope/range

        本 standards product in table/sheet inner and table/sheet specification, improve/increase mold quality, make more good production. standards suitable for company product development mold design product design

        2 inner 容

        2.1 二维图纸

        2.1.1 二维图纸必 must combined machine made 图国家 standards.

        2.1.2 use PRO/E soft parts 出二维图, parts inner 容应统一.

        2.1.3 图纸线 strip/profile wide, large small and strip/profile 应统一, coarse 实线, coarse 点划线线 strip/profile wide is 0.5mm, fine 实线, 波浪线, di 折线, fine 点划线, di 点划线线 wide is coarse 实线 1/3, 虚线线 wide is coarse 实线 1/3, long is 4mm,线段间隔 is 1mm. 字体(数字, 文字)字 high 3.5mm, strip/profile wide 0.35 mm.

        2.1.4 图纸 ratio/proportion 按国家 standards, printing 出 图纸实际 ratio/proportion and 标题栏 in ratio/proportion 一致, 不允许 shrink 放. according to product structure large small, complex degree, combined 理选定 made ratio/proportion, 不允许视图 small, structure table/sheet 达不清. 不允许 dimensions distribution 密, difficult 以识别.

        2.1.5 图纸 dimensions 标注:

        2.1.5.1 product in in 应注出, dimensions 标注应统一基准.

        2.1.5.2 图纸应 dimensions full, positive 确, 清晰, combined 理, 不缺漏 dimensions, dimensions distribution combined 理. dimensions 标注应利于 mold processing.

        2.1.5.3 important assembly dimensions and important parts, dimensions, dimensions 应标注公差. its it dimensions 标注未注公差 and other grade.

        2.1.5.4 必检 dimensions is product assembly, appearance key/critical dimensions. dimensions rear add 序号, 序号形式 is outer add 圆圈. 序号应按顺序排列, left right, upper lower, 便于查阅.

        2.1.5.5 不 easy 标注 三维曲面标出 most large outer dimensions.

        2.1.6 add strong/high must large small dimensions, has degree 部位标注 dimensions must table/sheet 达标注 dimensions is large also is small 端.

        2.1.7 图面 table/sheet 达清晰明朗, remove necessary versus 切线.

        2.1.8 technology requirements inner 容应包括: 未注壁 thick, 未注圆角, demolding degree, appearance requirements (如镜面, transparent parts, 喷漆, and other), assembly and 间隙, dimensions and its it requirements and other.

        2.1.9 appearance 需做皮纹 use 虚线标出面积 or scope/range.

        2.1.10 cosmetic parts in in use coarse di 点划线注出 appearance 面 位置.

        2.1.11 二维图 in application fine 实线标出 separation type 面 位置并 use 文字说明.

        2.1.12 不允许设 gate and 不允许 has ejection 痕迹 位置 in in 注明.

        2.1.13 若出模 direction and product formulation toward 不一致, generally product direction 画图, upper application 箭头标出 product formulation toward and 基准, 并文字说明.

        2.1.14 应标明图纸 状态, replace has 特殊标注.

        2.1.15 二维图应 and 三维图 maintain 一致. 三维图 more 改, 二维图应同步 more new.

        2.1.16 is 便于识图, in 二维图纸适当位置 increase 三维轴侧图.

        3.1 三维立体图

        3.1.1 三维立体图 has structure application 实体(Solid) table/sheet 达, 且不允许缺漏 structure or and 二维图不统一.

        3.1.2 三维图 upper and direction and slip block, 抽芯运动 direction product inner outer surface add demolding degree, degree large small 以0.5°~1º is 宜. add degree front 应明确 product separation type 面 位置 and product assembly, appearance requirements, 以确定斜 degree direction and large small. 需插穿 位置应 add 1º至3º 斜 degree. in 允许 情况 lower, degree large good. add strong/high in ensure strong/high degree. usually mold design 任务书由 structure design and mold design according to molding plastics product made parts 任务书提出, mold design 人员以 molding plastics product made parts 任务书, mold design 任务书 is based on design mold.

        3.2 收集, analysis, 消化原始资 material

        收集整理 has made parts design, molding process, molding equipment, machine processing and processing material, design mold use.

        ⑴消化 plastics made parts 图, understanding made parts applications, analysis plastics made parts process property, dimensions degree and other technology requirements. plastics made parts in outer table/sheet 形状, color transparent degree, use property can requirements is what, parts structure, degree, parts and other is combined 理, 熔接痕, shrink and other molding defect 允许程 degree, has coating 装, electroplating, 胶接, and other rear processing. selection plastics made parts dimensions degree most high dimensions analysis, 看看估计 molding is low plastics product made parts 公差, can molding combined requirements plastics product made parts. in addition, also need understanding plastics and molding process parameters.

        ⑵消化 process material, analysis process 任务书 提出 molding methods, equipment Model/Grade, material specifications, mold structure type type and other requirements is 否恰当, can 否落实. molding material meet/satisfy plastics made parts strong/high degree requirements, tool has good flow property, uniform property and toward property, heat stabilized property. according to plastics made parts applications, molding material meet/satisfy color, metal conditions, decoration property can, necessary elastic property and property, transparent property or versus 反 反射 property can, property or welding property and other requirements.

        三, selection molding equipment

         according to molding equipment types type mold, therefore must various molding equipment property can, specifications, features. for/regarding injection machine 说, in specifications 方面应当 understanding below/following inner 容: injection amount, pressure, injection pressure, mold dimensions, ejection plant/unit and dimensions, nozzle 孔直径 and nozzle semi 径, gate sleeve/set 定位圈 dimensions, mold most large thick degree and most small thick degree, sheet/plate and other, specific related parameters. need 初步估计 mold outer dimensions, mold can in injection machine upper and use.

        四, specific structure solution/scheme:

        ⑴确定 mold type type, injection and other.

        ⑵确定 mold type type main/primary structure selection mold structure in 于确定必需 molding equipment, type 腔数, in for can conditions lower can make mold 本身 工 as meet/satisfy plastics made parts process technology and production requirements. for plastics made parts process technology requirements is need ensure plastics made parts 几何形状, surface light degree and dimensions degree. production requirements is need make plastics made parts cost low, production efficiency high, mold can 连续 工 as, use lifespan long, 节省劳动 force.

         effect/influence mold structure and mold system factors very more, very complex:

        ① type 腔布置. according to parts structure features, dimensions degree requirements, amount large small, mold manufacturing difficult easy, mold cost and other type amount and its methods. for/regarding injection 模 说, plastics made parts degree is 3 grade and 3a grade, weight is 5克, using/adopting hard 化浇注 system, type 腔数取4-6; plastics made parts is generally degree (4-5 grade), molding material is local crystallization material, type can 取16-20; plastics made parts weight is 12-16克, type 腔数取8-12;而 weight is 50-100克 plastics made parts, type 腔数取4-8. for/regarding type plastics made parts type is 24-48, 16-32 and 6-10. again increase plastics made parts weight 时, very less using/adopting more mold. 7-9 grade degree plastics made parts, most more type relatively 之指出 4-5 grade degree plastics increase more 至50%.

        ②确定 separation type 面. separation type 面 位置 need has mold processing, gas, demolding and molding as, plastics made parts surface quality and other.

        ③确定浇注 system (主浇道, separation and gate 形状, 位置, large small) and gas system (排 gas methods, gas 槽位置, large small).

        ④ selection ejection methods (顶杆, tube/pipe, sheet/plate, combined ejection), 决定侧凹处理 methods, methods.

        ⑤决定 cooling, add hot methods and add hot cooling 沟槽 形状, 位置, add hot parts 安装部位.

        ⑥ according to mold material, strong/high degree or experience data, mold parts thick degree and outer dimensions, outer structure and has 连接, 定位, toward parts 位置.

        ⑦确定 main/primary molding parts, structural parts structure 形式.

        ⑧考虑 mold separation strong/high degree, molding parts as dimensions. above this issues if solution, mold structure 形式自然就 solution. this 时, 就应该 手绘 made mold structure 草图, is positive 式绘图 as good 准备.

        ⑨绘 made mold requirements according to made standards made, is requirements combined standards and 国家未规定 factory methods. in mold 总装图之 front, made 工序图, need combined made parts and process material requirements. lower 道工序 ensure dimensions, in upper 标写注明" process dimensions "字样. if molding rear remove 修理毛刺之 outer, again 不进行 other machine processing, that 么工序图就 and made parts full same. in 工序图 lower most good made parts 编号, 名称, material, material shrinkage rate, ratio/proportion and other. usually 就 工序图画 in mold 总装图 upper.

        A, made structure 图

        绘 made 总装图尽 amount using/adopting 1: 1 ratio/proportion, type 腔开始绘 made, 主视图 and its it meanwhile 画出. mold 总装图应包括 below/following inner 容:

        ① mold molding separation structure

        ②浇注 system, gas system structure 形式.

        ③ separation type and separation parts methods.

        ④ outer structure and has parts, 定位, toward parts 位置.

        ⑤标注 type high degree dimensions (不 strong/high 求, according to need) and mold dimensions.

        ⑥辅助工 tool (取 parts 卸模工 tool, positive tool and other).

        ⑦按顺序 will full parts 序号编出, and 填写明 fine table/sheet.

        ⑧标注 technology requirements and use 说明.

        B, mold 总装图 technology requirements inner 容:

        ① for/regarding mold certain system property can requirements. for ejection system, slip block structure assembly requirements.

        ② for mold assembly process requirements. mold assembly rear separation type 面 贴 combined 面 贴 combined 间隙应不 large 于0.05mm mold upper, lower 面 平行 degree requirements, 并指出由 assembly dimensions and for dimensions requirements.

        ③ mold use, methods.

        ④ anti oxidation 处理, mold 编号, 刻字, 标记, 油封, tube/pipe and other requirements.

        ⑤ has mold trial and 检验方面 requirements.

        C, made full parts mold 总装图拆画 parts 图 顺序应 is: inner rear outer, complex rear simple, molding parts, rear structure parts.

        ①图形 requirements: need ratio/proportion 画, 允许放 large or shrink small. selection combined 理, positive 确, 布置 当. is make processing patent easy 看懂, assembly, 图形尽 can can and 总装图一致, need 清晰.

        ②标注 dimensions requirements 统一, in, has 序, 完整. dimensions is: main/primary parts dimensions and 出模斜 degree, again 标注配 combined dimensions, rear full dimensions. in non main/primary parts upper 先标注配 combined dimensions, rear full dimensions.

        ③ surface coarse degree. application most more types coarse degree 标于图纸 right upper 角, 如标注" its 余3.2. " its it coarse degree in parts surface separation 别标出.

        ④ its it inner 容, parts 名称, mold 图号, material grade, hot and hardness requirements, surface treatment, ratio/proportion, dimensions processing degree, technology and other need positive 确填写.

        D, for, 审图自我校 for inner is:

        ① mold and its parts and parts 图纸 关系, mold and mold parts 材质, hardness, dimensions degree, structure and other is combined parts requirements.

        ② plastics made parts plastics material flow, shrink 孔, 熔接痕, 裂口, demolding degree and other is effect/influence plastics made parts use property can, dimensions degree, surface quality and other requirements. design has 无不足, processing is simple, molding material shrinkage rate selection is positive 确.

        ③ molding equipment 方面: injection amount, injection pressure, clamping force 够不够, mold 安装, plastics product made parts type 芯, demolding has issues, injection machine nozzle and sleeve/set is positive 确 接触.

        ④ mold structure 方面:

        a. separation type 面位置 and processing degree is meet/satisfy need, 会不会发生溢 material, mold opening rear is can ensure plastics made parts in has 顶

        出 plant/unit mold 一边.

        b. demolding methods is positive 确, 推广杆, tube/pipe large small, 位置, amount is combined 适, sheet/plate 会不会 by type 芯卡住, 会不会造 formed scratch molding parts.

        c. mold temperature degree adjustment 方面. add hot device rate, amount; cooling flow 线路位置, large small, amount is combined 适.

        d.处理 plastics made parts made methods, 脱侧凹 machine is 否恰当, 例如斜导柱抽芯 machine in slip block and is versus dry 扰.

        e.浇注, gas system 位置, large small is 否恰当.

        f. design 图纸

        g. assembly upper mold parts 安置部位 is 否恰当, table/sheet is 否清楚, has 无遗漏

        h. parts upper parts 编号, 名称, made as amount, parts inner made also is outer 购, is standards parts also is non standards parts, parts combined 处理精 degree, molding plastics made parts high degree dimensions 处 修 positive processing and amount, mold parts material, hot 处理, surface treatment, surface processing degree is 否标记, 叙述清楚.

        ⑤ parts main/primary parts, molding parts as dimensions and combined dimensions. dimensions 数字应 positive 确无误, need make production 者换算.

        ⑥检查 full parts and 总装图 视图位置, is positive 确, method is combined made 图国标, has 无遗漏 dimensions.

        ⑦校核 processing properties: (has parts structure, 视图画 method, dimensions and other is has processing)

        ⑧复算辅助工 tool main/primary as dimensions 审图师原则 upper design 者自我校 for project 进行;但 is need heavy structure principle, process property can and as safety 方面. rear 并签字. has manufacturing experience technology 人员审查, 会签, manufacturing process property, rear can mold workshop.