Shanghai Daoqin Plastics Co., Ltd.

        一, 模仁, 模胚

        1.模胚 in 未拆开之 front, its Model/Grade, dimensions is and combined 符, rear in 基准角之 for 角面打 upper mold and sheet/plate 序号, requirements in sleeve/set mold iron upper mold 编号;每 sleeve/set mold 导柱也必 must use abrasion machine upper mold 编号;导 sleeve/set 底部开排 gas 槽;B sheet/plate 四 角 requirements 铣撬模坑, dimensions is 20 * 45°*DP5.

        2. more product in sleeve/set mold 时, 应遵循 in product large, product small 原则, pressure in product in in 间, 以便整 sleeve/set 模走胶 uniform. requirements electroplating product and product in in 一起, requirements product in in 一起.

        3. separation type requirements light 顺漂亮, new mold appearance surface amount need 刮花, 生锈, ensure mold 美观整洁. rear requirements 平整, CNC processing 刀纹尽 can can loss bad, front type 胶位部 separation 省模必 must according to coarse 凿精凿, coarse 油石精油石, coarse fine 砂纸 顺序省 light rear again light (晒纹 parts must light).

        4. in effect/influence product ejection and ensure sheet/plate strong/high degree conditions lower, requirements mold force uniform add 撑头, main/primary in mold in 间. long degree: 3535 below/following 模胚, high degree is iron high add 0.15-0.2mm;3535 above 模胚撑头 high degree is iron high add 0.2-0.3mm, generally solid in sheet/plate or B sheet/plate upper.

        5. product appearance or product assembly good rear, as 者手部 can to can has 利角.

        6.唧嘴 requirements 做定位止转, 出胶口 requirements separation type 面平0.5-1.0mm. long degree can can short, decrease/reduce injection force. 唧嘴定位台阶面不 can to or parts.

        7.模胚顶棍孔 and 唧嘴孔必 must in in upper, 顶棍孔直径 is Φ40, in 3555 above according to injection molding machine is 3, in is 100, 顶针底 sheet/plate requirements uniform waste 钉, waste high degree must 一致.

        8. has mold must processing 码模槽, in is 7英寸, 10英寸, 12英寸且直身模 requirements 铣码模坑, deep 25, wide 25, long sheet/plate large small 而定.

        9. has mold 之模仁, large parts requirements cooling water, especially is comparison deep, comparison thick 方, water 路直径8.0mm, relatively large can is Φ10, large is Φ12, safety is 4.0mm, 离胶位至 less 保留6.0mm. amount local mold temperature high, water copper 位置必 must 做台阶, and parts cooling water use anti water from for 接出, front frame, water tube/pipe can through 模仁, in 模胚 面 sheet/plate upper (面 sheet/plate and A sheet/plate between can mold opening), water tube/pipe generally in non as, water tube/pipe water upper ‘IN1’, ‘IN2’, water upper ‘OUT1’, ‘OUT2’.

        10.避免烧焊部位 in obvious appearance 处.

        11. front rear frame processing 时, 首先必 must positive 铣床主轴 and as 台面垂直, ensure 公差±0.01mm; frame requirements use 飞刀铣平, frame 角四周 use small or and other 于Φ12铣刀避空0.1, ensure frame large 面积平整, front rear frame requirements in in upper, ensure 公差±0.01mm. lower 方, requirements use 红丹检查 is large 面积接触.

        12. front rear abrasion positive 角尺, requirements 角尺公差±0.02, long wide dimensions 一致;模仁侧面铣一凹槽, upper 基准符号DUTAM and mold 编号, and 模胚基准角 versus for 应. generally lower, front rear requirements will 顶针, 镶针孔;穿线孔 processing formed rear, can again 由CNC or 线切割 processing.

        13. has machine processing parts, must 事先准备 good parts will use to has tool, tool can in machine upper one-time property processing formed, requirements full formed rear 经检查才 can lower machine, anti 止反复 upper machine processing.

        14. has electrical in electrical processing front, must its outer is and 图形一致(清角部 separation), its dimensions must and other 于图纸 dimensions * sink marks 火花位省模余 amount (留纹 remove outer). mold engineering micro 信: 1828765339 requirements copper electrical 部位 400#砂纸省 light, can 残留刀纹 or filament 痕;基准位 requirements light slip, 平整, can 残留毛刺, 利角.

        15. has 火花, 线割, CNC, processing, must fine 检查, 确认无误之 rear, can lower 一道工序 processing.

        二, structure

        1. mold has active parts, 如行位, 斜顶, block, sheet/plate and other, need degree and degree 互配, versus abrasion scratch requirements 开油槽, use hardness can low 于模仁 hardness.

        2. has mold and 行位吻 combined 斜面, must use abrasion processing, can using/adopting abrasion machine processing. 斜导柱斜 degree requirements small 于铲基斜 degree 2°, requirements has 反铲.

        3. large wide degree direction ultra- 200mm需 in in 间做导 toward machine 构, generally using/adopting copper toward block.

        4.由行位互碰而 formed product, requirements 行位做互锁台阶限 made.

        5.行位导 toward block amount design in sheet/plate upper, 行位两边 add pressure block.

        6. for front generate relatively large force 部位, must in for rear 模部位 uniform 设置勾针, requirements 定位且 has direction 一致, demolding.

        7.镶 parts requirements has or use filament solid 定, good rear can 松动.

        8.模仁 and frame versus 配之R角, can 紧配, must 避空, requirements use 铣刀倒C角2*45°, and frame versus 配之R角 requirements: R frame +1=R模仁.

        三, runner

        1. has mold in ensure formed quality front lower amount shrink short runner 行程, can can decrease/reduce 横截面积, cold material is runner 直径1.5倍, has runner requirements has cold material 穴, 如: lower 方, runner 尽头, fine water 口进胶 lower and other.

        2. has fine water mold, mold runner and water 口勾针必 must light. need ensure 进胶口顺畅, decrease/reduce injection molding pressure 且无残渣留 in product upper.

        3. large water runner 截面应做 formed or upper lower 椭圆形, high degree dimensions ratio wide degree dimensions large 0.5-1.0 front rear must for 齐, light can has phenomenon, 特殊情况 lower mono runner requirements is 梯形.

        4.入 material 口, water 口位不 can in obvious appearance 处, electroplating product 进胶点 need ensure strong/high degree, large water 口进胶点 and product 接触处应 is 横截面积 most small 刀口面, ensure remove rear can has 残渣留 in product upper.

        5.潜 water 进胶 顶针 or 勾针位置, requirements and separation type 面进胶口处 versus 距一定距离, large and other runner 直径 1.5倍, ensure 潜胶口 tough property, water gate must light.

        6. gears large water 口进胶点 in 齿面底部, use Φ1.0 铣刀 for positive its in 一 齿 尖点铣 deep 0.5-0.6, wide 1.2, deep 1.5, AB sheet/plate parts. to 镶通孔 need combined in processing 时, 如不镶通孔, need use separation in rod separation in, ensure 同心精 degree. rear 模司筒针 and front 模插穿, must use small processing 孔径 钻咀开 coarse, copper electrical processing.

        四, ejection system

        1.顶针 distribution need combined uniform, amount difficult demolding and relatively deep 处骨位, anti product deformation; product is or 圆弧面处 顶针, 司筒, 司筒针必 must need 做止转 structure, and product or 圆弧面平行. and has ejection requirements outer and 胶位边保留 versus 差距离: large small is 5mm以 inner, versus 差1.0-1.5mm;5-10mm, versus 差1.5-2.0mm;10mm above versus 差2.5mm left right.