Shanghai Daoqin Plastics Co., Ltd.

         di color mold: types plastics material in 同一台 injection molding machine upper injection molding, separation molding, is product one-time mold. generally this type of process di material injection molding, usually sleeve/set mold formed, need di color injection molding machine.

         overmolding mold (二次 molding): types plastics material 不一定 in 同一台 injection molding machine upper injection molding, separation molding; product from sleeve/set mold in 出模取出 rear, again another sleeve/set mold in 进行第二次 injection molding. therefore, generally this type of process usually 由2 sleeve/set mold formed, need di color injection molding machine.

        二次 molding mold (overmolding 模) and di color mold overview

        二次 molding mold in design attention/notes hard parts 定位, to can 靠 封胶且 in parts upper has degree 孔, anti 止拉胶 deformation.

         di color mold currently market upper day 益盛行, this type of process can make product appearance more add 漂亮, easy color can use spray coating, 但造价昂贵, technology requirements high.

        1. Cavity 两 形状 is different, separation molding 1 types product. 而Core 两 形状完 full 一样.

        2.  mold front, rear in 心旋转180o rear, must combined. design must this 检查动 as.

        3.  attention/notes 顶针孔 位置, most small 距离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 must design add long 顶针, long 出模胚底 sheet/plate 150mm left right. rear sheet/plate upper must design 2 定位圈.

        4.  front sheet/plate add A sheet/plate thick degree can less 于170mm. fine this type of Model/Grade injection molding machine its it data, ratio 如, most large thick degree, most small thick degree, 顶棍孔距离 and other.

        5. 三 sheet/plate water most good can design formed can demolding as. especially need attention/notes soft water demolding as is can 靠.

        6.  front 侧SPRUE deep degree need ultra- 65mm. upper 侧(large water 口)SPRUE to in 心 距离不 small 于150mm.

        7.  in design 第二次 injection molding CAVITY时, is 避免CAVITY插(or scratch)伤第 one-time already molding good product 胶位, can design separation 避空. is must heavy 考虑每一处封胶位 strong/high degree, 即: in injection molding in, is has in large injection molding pressure lower, plastics deformation, 导致第二次 injection molding can can has generate can can?

        8.  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 function.

        9.  attention/notes in 第二次 injection molding 时, plastics flow is 否会冲动第 one-time already molding good product, make its deformation? if has this can can, need method improvement.

        10.  in A, B sheet/plate clamping front, need attention/notes front 模Slider or Lifter is 否会先复位而 pressure bad product?如此, must method make in A, B sheet/plate clamping, rear front SLIDER or LIFET才 can 复位.

        11. 两CAVITY and CORE water 布置尽 amount separation, and 均衡, 一样.

        12. 99% 情况 is injection molding product hard separation, again injection molding product soft separation. is soft easy deformation.

        13.  is make types plastics “ viscous ” more 紧, need 考虑材 material between “ viscous property ”以 and mold surface coarse degree. di color injection molding has TPU;而 mold surface light slip, it 们“ viscous „ more 紧.

        14.  attention/notes front rear 模 定位; has 插穿, 靠破面 斜 degree 落差尽 amount large, need 0.1mm above.