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电镀件定模斜抽芯热流道注塑模具

2022-04-25

作者：

新葡的京(中国)集团350vip8888

浏览量：

50

1.塑件结构分析

材料为PP加30%玻璃纤维，收缩率取1.1%.塑件结构特点是壁厚较小，只有1mm,熔体填充时阻力较大，要注意浇注系统的设计。塑件上有五个向倾斜的、均匀布置的空心圆柱，倾斜角度为10°,动定模方向均要斜抽芯，此处注塑模具结构较复杂。

 


2、注塑模具结构分析

注塑模具采用热流道浇注系统，可以改变熔体填充(塑件壁薄，熔休填充时阻力较大)，同时也可以提高注塑模具的劳动生产率。塑件的五个斜柱由动定模两边成型，分别设计五个斜抽芯，五个斜抽芯分别在动定模的斜孔和垂直于开模方向的T形槽内滑动，将开模运动转变为斜向运动，从而实现斜向抽芯。注塑模具动定模部分为此各增加一个开模面，将开模距离转变为斜向抽芯距离。为了保证斜向抽芯在开模和复位时安全可靠，东莞市马驰科注塑模具厂采用了外置式和内置式相结合的定距分型机构，并在推杆固定板上加设了行程开关。塑件由推杆推出，简单安全可靠。零件锁模扣，塑料注塑模具加工运输及存仓时才装上，生产时必须拆除。


3.注塑模具工作过程

熔体经热流道进入模具型腔，完成注射成型后，注塑模具在注塑机的拉动下开模。在定证距分型机构和弹簧的作用下，模具先从分型面1处打开，开模距离 30mm,由限位钉控制。在这一过程中，斜抽芯完成斜向抽芯。由于外置定距分型机构的作用，继续开模时模具则从分型面2处打开，动定模分离。动定模开模距离达到20mm时，上钩脱离动模板, 同时拉钩勾住动模板，接着分型面1停止打开，分型面2开始打开。分型面2打开距离为20mm,由限位钉控制。东莞市马驰科注塑模具厂在这一过程中，动模斜抽芯完成斜向抽芯，脱离塑件。分型面2打开20mm后，拉钩脱离动模板,分型面2继续打开，完成开模行程后，注塑机推动推杆将塑件推离 注塑模具。

注塑生产的条件对产品有哪些影响

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注塑生产的条件对产品有哪些影响

—

2022-05-24

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注塑生产的条件对产品有哪些影响

■

影响塑料模具加工公司交期的因素是什么？

■

注塑模具加工有哪些基本要求

■

塑胶注塑件表面处理之UV处理

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电镀件定模斜抽芯热流道注塑模具

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注塑加工厂家控制注塑加工成本的方法有哪些？

这里是占位文字

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地址:东莞市石排镇赤坎村石崇大道赤坎工业区18号
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联系人:杨生
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手机: 13924375023
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传真: 0769-86537191
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