一、设计依据
尺寸精度与其相关尺寸的正确性。
根据塑胶制品的整个产品上的具体要和功能来确定其外面质量和具体尺寸属于哪一种:
外观质量要求较高,尺寸精度要求较低的塑胶制品,如玩具;
功能性塑胶制品,尺寸要求严格;
外观与尺寸都要求很严的塑胶制品,如照相机。
脱模斜度是否合理。
脱模斜度直接关系到塑胶制品的脱模和质量,即关系到注射过程中,注射是否能顺利进行:
脱模斜度有足够;
斜度要与塑胶制品在成型的分模或分模面相适应;是否会影响外观和壁厚尺寸的精度;
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模具设计要点
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美国的模具制造
中国模具业目前的高速发展,使得越来越多的相关企业将模具制造转移到中国。也使得我们经常能够遇到出口模的订单,如何按不同客户的要求完成,是我们必须面对的问题。比如美国的模具制造一直都在使用英制单位,而且还有其它很多与我们炯然不同的标准,因此在这类模具的设计之前,一定要沟通好相关的要求,否则会产生非常多的麻烦,甚至导致模具报废。这里转贴一份美资公司的相关要求,以供参考:
MOLD ENGINEERING STANDARDS
1.0 GENERAL OVERVIEW
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mould term
top view ----俯視圖
front view ----前視圖
side view ----側視圖
plane view ----平面圖
contour ------外型銑削
pocket ------挖槽
flow line ----罩一曲面
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12
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plastic injection mold 模具技术用语
模具技术用语
1. XXX!你现在有空吗,我可以问你一些问题吗?
Could I ask you some questions if you are free?/ Are you free now? May I ask you some questions (aquestion)?
2. 请问此产品的面是否为外观面?表面做什么处理?是晒纹/抛光?
Can you tell me whether the surface of this part is a visible/esthetic one? What will we do for its
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vertical type three plate multi-cavity injection mold
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入水:gate
一、入水:gate
进入位: gate location
水口形式:gate type
大水口:edge gate
细水口: pin-point gate
水口大小:gate size
转水口: switching runner/gate
唧嘴口径: sprue diameter
二、流道: runner
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Sheet Moulding Compound / Bulk Moulding Compound
SMC/BMC moulding
Sheet Moulding Compound / Bulk Moulding Compound
01
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Retaining a Slide,Cut-Off Die,Embossing Die
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A Gate between the runner and the part cavity
A Gate is a small area between the runner and the part cavity. The type, size and location of a Gate in an injection mold is critical to efficiently producing quality parts.
The type of gate selected depends on many factors including:
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