Shanghai Daoqin Plastics Co., Ltd.

        1. di color design basic 原则:

         hard 胶做1次, soft 胶做2次;

         transparent 做1次, non transparent 做2次;

         molding temperature degree high plastics 做1次, molding temperature degree low 做2次;

         upper is di color basic 原则, mold 会白做; another, 封胶时尽 amount use 靠破封胶, use 插破封胶, is 建议客户修改 product need amount is 靠破封胶;

        2. 模胚导柱导 sleeve/set must upper lower left right for 称, front rear for 称.

        3. rear need 旋转180 degree, front 模不动.

        4. product 间距必 must injection molding machine 炮嘴 间距 is 准, outer has di color injection molding machine 炮嘴间距 is can 调, has can 调, inner can 调.

        5. 两 独立 ejection system, 顶棍也 is 两. rear product same, 顶针都 same, is 旋转关系, can formed 平移关系.

        6. sheet/plate can use elastic 簧复位, can use filament strong/high made 复位, is rear need 旋转.

        7. 边锁必 must in mold in 心 四边, front rear for 称, 否则当 rear 模旋转180 rear and front for upper.

        8. if 进胶点间距 and injection molding machine 炮嘴间距 different, 顶棍孔 need formed type, is injection molding machine 顶棍间距不 can 调. attention/notes Domestic di color injection molding machine large separation injection molding 炮嘴不 can 调.

        9. attention/notes provide injection molding machine 平行炮嘴 direction, is X轴 or is Y轴, 以此 定 product 排位 布局.

        10. water water direction must in 天 侧, 且每一 循 ring water 进出都必 must in 同一面 upper, can water in 天, water in 侧, is rear need 旋转180 degree, need attention/notes large small can ultra- injection molding machine water high degree, 否则无 method water.

        11. one-time injection molding product need in non as 侧, is one-time injection molding rear product need 旋转180 degree 进行第二次 injection molding, positive good to as 侧, 方便取 product.

        12. export 模 码模位 need in as and non as 侧, can in 天 侧, is product need full 自动.

        13. separation type precautions: rear separation type need will product combined rear separation type is rear 模; front separation type need mono product can, can combined rear product separation type 面.

        14. front rear method 兰 公差 is negative 0.05mm, method 兰间距公差 is positive negative 0.02mm, and 顶棍孔 间隙 mono is 0.1mm, front rear sleeve/set in 心距公差 is positive negative 0.01,模 frame and deep degree need add 公差, 否则当 rear 模旋转180 degree rear, high low 不一致而 generate 批锋. frame deep is negative 0.02mm.

        15. if in 模胚厂 already will processing 完, need processing and 顶棍孔时, need 以4 导柱导 sleeve/set 孔 间距 in is 基准取数, 否则偏差太 more, easy 卡死模. 订模胚时 need is di color 模胚, 四 导柱导 sleeve/set and frame for 称, rear 模旋转180 degree rear can and front 模匹配.

        16. if is rear 模旋转 di color 话 就 simple more,两 front 模芯一样,一边 injection molding good hard rear.旋转180 degree (attention/notes product 转 时候不 can 掉落, gate can separation 离), to another rear again injection molding soft 胶, injection molding hard 胶无需布置顶针, 需布置 in soft this 边模芯即 can, another sink marks need attention/notes, if soft full hard 胶缠住,则 需放 hard sink marks, if is versus 接 则 hard soft need sink marks.

        17. if is sleeve/set mold di color mold 话, that is 一 直炮筒,一 90 degree 炮筒射胶, need 旋转, 需一 模芯, soft and hard separation methods 靠行位封胶.

        18. Cavity outer is different, separation molding 1 types product. 而Core outer good 一样.

        19. mold front, rear in 心旋转180° rear, 必需吻 combined. design 时必需做 this 检查动 as.

        20. 留意顶针孔 位置, most small 间隔210mm. large mold must increase 顶棍孔 数 amount. and, due to injection molding machine 本身附 belt/tape 顶针不够 long, therefore mold in design add long 顶针, long 出模胚底 sheet/plate 150mm left right.

        21. rear sheet/plate upper design 2 定位圈.

        22. front sheet/plate add A sheet/plate thick degree can less 于170mm. true this type of Model/Grade injection molding machine its it data, ratio 方, most large thick degree, most small thick degree, 顶棍孔间隔 and other.

        23. front 侧SPRUE deep degree need ultra- 越65mm. upper 侧(large water 口)SPRUE to in 心 间隔不 small 于150mm.

        24. in design 第二次 injection molding CAVITY时, is anti 止CAVITY插(or scratch)伤第 one-time molding good product 胶位, can design local 避空. is 必需慎 heavy 思索每一处封胶位 strong/high degree, 即: in injection molding in, can has in large injection molding pressure lower, plastics as deformation, 招致第二次 injection molding can can has generate can can;

        25. injection molding 时, one-time injection molding product dimensions can large, make it in 第二次 molding can and CAVITY pressure more 紧, to 达封胶 function.

        26. in A, B sheet/plate clamping front, need front 模Slider or Lifter can 否会先复位而 pressure bad product?如此, 必需想 methods make in A, B sheet/plate clamping, rear front SLIDER or LIFET才 dry 复位.

        27. 两CAVITY and CORE water 布置尽 amount separation, and balanced, 一样.

        28. 99% 情况 is injection molding product hard local, again injection molding product soft local. due to soft easy deformation.

        29. in 第二次 injection molding 时, plastics active can 否会冲动第 one-time molding good product, make its deformation? false has this can can, need methods improvement.

        30. di color mold need selection gate 位置. one-time product most good selection 潜伏式进胶, this product and runner can 自动切断. method using/adopting 潜伏式进胶时, can 考虑三 sheet/plate or hot runner mold. one-time material if is gate, need 做波仔, 避免因 one-time 进点残留而碰穿二次 material.

        31. di color injection molding mold using/adopting injection molding 模. injection molding 模两 位置 upper 凸模/凹模 requirements dimensions, degree 一致, and 凹模/凸模配 combined good. method utilizing di color injection molding machine upper ejection demolding machine 构时, 回转台 upper must need liquid pressure ejection demolding machine 构.

        32. di color mold injection molding usually selection different color types plastics, can is types different plastics raw materials, this 时候就 need 考虑两 types material interface function, shrinkage rate 差异, processing process parameters and other 方面.

         di color injection molding products generally 以ABS, PC and other hard plastics combined TPE soft plastics is 主, due to cost or application 关系, need separation using/adopting types material material between can can has good bonding property and melt combined property, types material between combined mold 处理(generally has pressure 花纹路 phenomenon or need 做封模槽) also has material thick thick degree and other very more issues!

         is make types plastics “ viscous ” more 紧, need 思索材 material between “ viscous property ”以 and mold outer table/sheet coarse degree. di color injection molding has specialized TPU材 material;而 mold outer table/sheet light slip, it 们“ viscous 越紧.

        33. generally 说, di color mold sink marks rate 取决于 one-time material. is one-time material already plastics products 轮廓撑住, 二次材 material shrinkage more more. how to one-time material and 二次材 material, this has many need to factors, ratio raw materials flow property, plastics products and other and other.

        34. front rear 模 定位;一切插穿, 靠破面 斜 degree 落差尽 amount large, need 0.1mm above.

        35. ABS/PC, ABS/PC ABS, ABS/PMMA di color injection molding 时, need injection molding temperature degree relatively high PC,PC ABS or 者PMMA. if is transparent housing/shell mold large separation using/adopting mold structure.

        36. transparent large di color injection molding for/regarding structure design is need attention/notes 方:

         gate 位置 预留,必 must and mold 厂预先达 formed 一致;

        材 material thick degree recommendation use transparent 0.8mm above, non transparent 0.7mm above, non transparent amount using/adopting shallow color, has LED灯时候 attention/notes light;

         transparent parts separation and 孔 方 wide degree 一致, wide degree recommendation 0.5mm, 曲面接顺, 避免侧面看, can very 远, 不美观, amount decrease/reduce 孔;

         non transparent parts thick degree has 限, upper strip/profile and other structure amount is in 0.5-0.6mm between, sink marks;

        就 currently 而言不 recommendation belt/tape sheet/slice di color injection molding, mold and product cost high, for mold equipment and technology water has versus requirements, 做 话, need for to 出整 一 process/workflow solution detailed solution/scheme assessment, for in step/link need 审查;

         for/regarding large di color injection molding parts, key/critical testing is and cold hot impact, in this testing 里面, transparent parts and non transparent parts easy 脱开. cold hot impact -40 -65, time 48 small 时.

         di color parts upper structure amount 简化, complex to combined parts upper 面, non transparent parts strip/profile wide degree amount in 0.5-0.6mm, sink marks.