Shanghai Daoqin Plastics Co., Ltd.

         mold design in, to use 常规斜顶脱出 product 倒扣时斜顶侧 toward sliding and product still has 倒扣时, can ejection lower 落斜顶 structure 形式.

        一, suitable combined:

         product ejection direction and separation type direction has 倒扣; versus for/regarding product 说,此时斜顶沿 water 平H and 垂直V direction method 脱出,斜顶 can 沿图示P direction 脱出,见图一.

图一, product analysis

        如遇 above 情况, can ejection lower 落斜顶 structure 形式.

图二, ejection lower 落斜顶 structure 形式

        二, structure 形式:

         ejection lower 落斜顶 structure 形式如图二, 三 示(this 里仅示出 belt/tape 斜顶杆 relatively large 斜顶,不 belt/tape 斜顶杆 relatively small can 简化):

图三, ejection lower 落斜顶 structure 形式

        三, 行程计算:

        据运动 analysis, 以 面做参考系,斜顶 base/seat (and sheet/plate,顶针托 sheet/plate versus 连,导 toward and product 运动状态, direction 一致),斜顶 slip block (and 斜顶杆 or versus 连)运动状态存 in lower 三角关系, (如图四):

图四, ejection lower 落斜顶几何模 type

         from in design can 事先确定:

        斜顶 water direction 行程S and lower slip degree Y.

         can 出斜顶 lower slip 行程:

        S1=S/ sin(Y)

        当 design 师进一步确定:斜顶角 degree X

         can 出斜顶 ejection 行程:

        H=S1*cos(Y)+ S/tg(X)

         its in:

        S—斜顶 water direction 行程;

        S1—斜顶 lower slip 行程;

        (斜顶沿斜顶 base/seat sliding 距离)

        X—斜顶角 degree;

        Y—斜顶 lower slip degree;

        四, design key points:

        1, Y=Y1 避免斜顶沿斜顶 base/seat toward sliding has 倒扣出现.

        2, S≥K+3mm(safety amount).

        3, L≥S1+3mm,避免斜顶 slip block in sliding process in and sheet/plate dry 涉.

        4, H1≥H+5mm,避免斜顶垫 block and B sheet/plate dry 涉.

        5, has water attention/notes 接头 避空.

        6, its it requirements and standards same.