来源：http://www.jnhjgs.cn 发布时间：2019-05-07 14:50:15 点击：
Ensure the appearance of the product. Because some plastic parts are used in the appearance of the product, which is equivalent to the appearance of the product. The appearance should be good. Those ugly parts can not attract the attention of customers. Therefore, when choosing the parting surface, the appearance of the product should also be considered. Therefore, it is better not to set the parting surface on the bright and smooth surface of the plastic or the corner of the arc, in order to avoid adverse effects on the appearance quality of the plastic. Reduce the marks left on the outer surface of the die.
When designing the die structure, core pulling at the side of the die should be avoided as far as possible. Because the selection of lateral core-pulling die structure of parting surface will become complex, and will directly affect the various dimensions of plastic parts and the assembly accuracy of plastic parts, the manufacturing cost will increase significantly, so it can only be used without self-restraint. Even if the core-pulling die is selected, the core-pulling should be as short as possible. The shorter the distance of cable-stayed movement, on the one hand, it can reduce the thickness of the template and the size error of the plastic parts; on the other hand, it is conducive to product demoulding.
Some plastic gears or sheets require high parallelism, concentricity and coaxiality. In addition to improving the accuracy of the die, it is also related to the parting surface of the product.