Shanghai Daoqin Plastics Co., Ltd.

         mold 检验验收

        一:目

         is ensure mold can production combined product, positive 常投入 production, ensure mold production use lifespan, meet/satisfy product design production use requirements. specification from product quality, mold structure, injection molding process requirements and other 方面认 can mold standards, for mold quality assessment, through training, understanding plastics mold mold trial process/workflow and precautions.

        二: steps

        1. through for below/following material understanding,熟悉 mold trial process/workflow and mold trial process in key/critical precautions.

        2. through hydrophilic mold trial 现场进行实践, understanding mold trial process.

        3. mold appearance, mold material, system, 托模.复位.抽插芯.取 parts, gas.运 water system, injection molding process molding system, product appearance. dimensions. function combined 验收.

        三: as is mold 验收方, in mold trial front and mold trial 时应该 need 明确 事情.

         mold trial front:

        (1) in mold design stage/phase: and mold manufacturing in technology 沟通交流时, need lower mold suitable machine 台, production capacity requirements, is use production methods mold lifespan requirements, product material shrinkage rate 设置, mold structure (依 mold methods 进行判定),PL线 design.

         for/regarding important cosmetic parts, also requirements mold manufacturing need 进行模流 analysis,以便 more good mold in production in has can can defect 并进行 assessment.

        (2) mold manufacturing formed,进行第1次 mold trial front

        确认 mold is has add strong/high plant/unit (如 is has strong/high made machine 构, or has sheet/plate 限位开关 machine 构, this machine 构, is ensure mold in 异常状态 lower,不致于 loss bad to mold plant/unit)

        确认 mold ejection and machine is 否安装完毕

         ejection machine Common has machine 构(拉杆 is balanced,拉杆 数 amount 足不足够都 is need 确认) and machine 构, has 时候会 has gas ejection 辅助, water has has 做Z形 拉住 cold material 位(发现六 workshop in has water mold sticking) *回程杆端面平整, 无点焊. 胚头底部无垫 sheet/slice, 点焊.

        凡做 slip block mold in slip block active 动处应开 made 油槽

         mold in injection molding machine upper rear,不 need 急于马 upper injection molding 调模.而 is requirements technology will injection molding machine in 手动操 as 档, requirements technology 员手动执行 mold 每 动 as,

        包括:

        1.顶针 ejection (判定 is ejection and balanced, is product 脱落, is 否发出异常 abrasion scratch 音)

        2.顶针复位(顶针 is can to 位,若不行,则会 for front mold film formed loss bad,应该 and 时检查清楚 rear again lower 一步)

        3.顶针 is has 限位装 made, slip block is can slip to 位.

        4. is can positive clamping and mold opening.

         above front as 确认完毕 rear,才 can 进行调模.

         another, remove sample dimensions, appearance and other defect outer, also need combined 一 总体 assembly 确认. therefore,每次 mold trial 时,都 尽 amount belt/tape has assembly parts. overall assembly 确认, can for for mold trial product in assembly issues 点, has more understanding, another for/regarding already in assembly issues 点, can more add analysis solution/scheme. can 避繁就简,节约 time. mold 验收, new mold in mold trial front and mold trial process brief introduction lower.

        1.明确 has issues already solution, and in machine upper, positive production need amount (ratio 如规定 is 5000啤) rear has issues

        2.明确 mold easy loss parts, and requirements mold workshop provide easy loss parts parts,以 anti in production 时,因 easy loss parts loss bad effect/influence production.

        3. requirements for mold outer separation coating anti 锈漆, manufacturing mold and other as.

        4. product surface 不允许 defect: material, 烧焦, 顶白, material 花, 毛刺, 起泡, whitening on ejection (拉裂, 拉断), sink marks, 蛇纹.

        二, mold appearance

        1, mold inner 容完整, 字符清晰, 排列整齐.

        2, cooling water 嘴不应伸出模架 surface.

        3, cooling water has 进出标记.

        4, 标记英文字符 and 数字应 large 于5/6, in water 嘴约10mm处, 字迹应清晰, 美观, 整齐, uniform.

        5, mold parts effect/influence mold and 存放. 安装时 lower has outer 露 油缸, water 嘴, 预复位 machine and other, has 支撑腿保护.

        6, 支撑腿 安装 application 螺钉穿 支撑腿 solid in upper, long 支撑腿 processing outer 螺纹柱子紧 solid in upper.

        7, mold ejection dimensions combined injection molding machine requirements, remove small type mold outer, can use in ejection.

        8, 定位圈应 solid can 靠, 圈直径 is 100mm, 250mm两 types, 定位圈 high sheet/plate 10~20mm. has requirements remove outer.

        9, mold outer dimensions combined injection molding machine requirements.

        10, has direction requirements mold in front sheet/plate or rear sheet/plate upper use 箭头标明安装 direction,

        11, surface has 凹坑, 锈迹, more 余 吊 ring, water 汽, and other and effect/influence appearance defect.

        12, mold 应便于吊装, 运输, 吊装时不 拆卸 mold parts, ring and water 嘴, 油缸, 预复位杆 and other dry 涉.

        三, ejection, 复位, 抽插芯, parts

        1, ejection 时应顺畅, 无卡滞, 无异常声响.

        2, surface light, 斜顶面 low type 芯面.

        3, sliding parts 应开设油槽, surface 需进行 nitrogen 化处理,

        4, has 顶杆应 has 止转定位, 每 顶杆都应进行编号.

        5, ejection application block 进行限位.

        6, elastic selection standards parts, elastic 簧两端不 打 abrasion, 割断.

        7, slip block, 抽芯应 has 行程限位, small slip block use elastic 簧限位, elastic 簧不便安装时 can use 波子螺 filament. 油缸抽芯 must has 行程开关.

        8, slip block generally using/adopting 斜导柱, 斜导柱角 degree ratio slip block 锁紧面角 degree small 2°~3°. slip block long using/adopting 油缸抽拔.

        9, slip block wide degree ultra- 150 mm large slip block lower has wear resistant sheet/plate, wear resistant sheet/plate ratio large high 出0.05~0.1 mm, made 油槽.

        10, 顶杆不应 upper lower 串动.

        11, upper add 倒钩, direction maintain 一致, easy from products upper remove.

        12, 顶杆孔 and 顶杆 配 combined 间隙, 封胶段 long degree, 顶杆孔 surface coarse degree standards requirements.

        13, products ejection easy 跟 斜顶走, upper add or 蚀纹.

        14, 回程杆端面平整, 无点焊. 胚头底部无垫 sheet/slice, 点焊.

        15, sheet/plate gate sheet/plate toward sliding 顺利, gate sheet/plate easy 拉开.

        16, sheet/plate 模限位拉杆应布置 in mold direction 两侧, or in outer add sheet/plate, anti 止限位拉杆 and as dry 涉.

        17, gas 道应顺畅, liquid pressure ejection 复位应 to 位. 18. sleeve/set 底部应开 made gas 口.

        四, cooling, add hot system

        1, cooling or add hot system separation 畅通.

        2, 密封应 can 靠, system in 0.5MPa pressure lower has phenomenon, easy 于检修.

        3, in upper 密封槽 dimensions and 形状应符 combined related standards requirements.

        4, 密封圈安放时应 coating 抹黄油, rear high 出模架面.

        5, water, runner sheet/slice using/adopting easy 受腐蚀 材 material.

        6, front rear using/adopting in water, methods.

        五, system

        1, gate 设置应不 effect/influence product appearance, meet/satisfy product assembly.

        2, runner 截面, long degree design combined 理, in ensure formed quality front lower amount shrink short process/workflow, decrease/reduce 截面积以 shrink short filling and cooling time, meanwhile system loss consumption plastics most less.

        3, sheet/plate separation in front sheet/plate 背面 部 separation 截面应 is or semi 圆形.

        4, sheet/plate in gate sheet/plate upper material 头, 浇道入口直径应 small 于3 mm, 球头处 has gate sheet/plate deep 3 mm 台阶.

        5, gate, runner 应按图纸 dimensions requirements use machine processing, 不允许打 abrasion machine processing.

        6, gate gate 处应按 specification requirements.

        7, separation runner front has 一段延 long separation as is cold material 穴.

        8, material 杆Z形倒扣应 has slip 渡.

        9, separation type upper separation runner is 圆形, front rear can 错位.

        10, in material upper 潜伏式 gate surface shrinkage.

        11, transparent products cold material 穴直径, deep degree combined design standards.

        12, material easy remove, products appearance gate 痕迹, products assembly 处无残余 material 头.

        13, 弯勾潜伏式 gate, separation block nitrogen 化处理.

        六, molding separation, separation type 面, gas 槽

        1, front rear surface has 不平整, 凹坑, and other its it effect/influence appearance defect.

        2, separation type maintain dry 净, 整洁, 封胶部位无凹陷.

        3, gas separation deep degree small plastics value, separation 切面约10mm处 can add deep gas 槽.

        4, parts combined to 位, 安放顺利, can 靠.

        5, block, and other can 靠定位 solid 定, parts has 止转, block lower 面不垫 copper sheet/slice, iron sheet/slice.

        6, 顶杆端面 and type 芯一致.

        7, front rear molding separation 无倒扣, and other defect.

        8, more mold products, left right parts for 称, 应注明L or R, for and dimensions has requirements, combined requirements, generally in effect/influence appearance and assembly add upper.

        9, 模架锁紧面配 combined (飞模)应 to 位, 75% above 面积碰 to.

        10, 顶杆应布置 in 离侧壁 relatively and 筋, 凸台 旁边, use relatively large 顶杆.

        11, for/regarding same parts 应注明编号1, 2, 3 and other 以便区 separation.

        12, 各碰穿面, 插穿面, separation type 面应配试 combined (飞模) to 位.

        13, separation type 面封胶部 separation combined design standards.

        14, and 喷砂应 uniform to requirements.

        15, appearance has requirements products, products upper 螺钉应 has anti shrink measures.

        16, front 模插入 rear or rear 模插入 front 模, 四周应 has 斜面锁紧并 machine processing 避空.

        七, injection molding production process

        1, mold in positive injection molding process conditions scope/range inner, tool has injection molding production stability property and process parameters can heavy property.

        2, mold injection molding production injection pressure, generally small injection molding machine most large injection pressure 85%.

        3, mold injection molding production injection speed degree, its separation 之三行程 injection speed degree low 于额定 most large injection speed degree 10% or ultra- 额定 most large injection speed degree 90%.

        4, mold injection molding production holding pressure pressure generally small 于实际 most large injection pressure 85%.

        5, mold injection molding production clamping force, small suitable machine type clamping force 90%.

        6, injection molding production process in, product and water material need easy, safety (time generally ultra- 3秒钟).

        7, belt/tape parts product mold, in production parts 安装方便, parts solid need can 靠.