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图1所示塑件每端有一个弯嵌件(弯嵌件尺寸见图2)。嵌件的特点是细长(径长比小),刚性差。嵌件的安装及定位比较困难。另外,由于嵌件很细(直嵌件定位部分为φ0.7)嵌件安装孔不容易做得很精确,常会出现逃料现象。针对这些问题我们在模具设计和制造中采取了一定措施,现分述如下。 一、模具结构及动作 由于塑件上嵌件较多(33个直嵌件),装嵌件化费时间较长,且细长嵌件很容易弯曲,合模时若有一个嵌件对不准模
Figure 1 shows a plastic parts each have a curved insert (curved insert size shown in Figure 2). Insert is characterized by slender (diameter ratio of small), poor rigidity. Insert the installation and positioning more difficult. In addition, as the insert is very small (straight insert positioning part is φ0.7) insert mounting hole is not easy to do very accurately, often there will be escape phenomenon. In response to these problems we have in the mold design and manufacture of certain measures are as follows are as follows. First, the mold structure and action As the plastic parts on the insert more (33 straight insert), the cost of assembly takes longer, and the elongated insert is very easy to bend, mold clamping if an insert is not Quasi mode