For plastic products with complex shapes, the design of the demoulding mechanism of Plastic Mold is crucial and directly related to the production efficiency and quality of plastic products.
First, the complex shapes of plastic products need to be analyzed in detail. Understand the demoulding difficulty of each part and determine the areas that may be difficult to demould, such as undercuts, deep cavities, thin walls, etc. For the undercut part, you can consider using a slider mechanism or an inclined ejector mechanism. The slider mechanism is suitable for lateral demoulding. By installing a sliding part on the mold, the undercut part is separated from the plastic product when the mold is opened. The inclined ejector mechanism is suitable for demoulding of internal undercuts. It ejects the undercut part while ejecting the plastic product by an inclined ejection method.
For the deep cavity part, a multi-stage ejector mechanism can be used. This mechanism can gradually increase the ejection distance during the ejection process to ensure that the plastic product can be smoothly ejected from the mold, while avoiding deformation or damage to the plastic product due to excessive ejection force. When designing a multi-stage ejector mechanism, it is necessary to reasonably arrange the ejection sequence and ejection distance to ensure that each ejection component works together.
Thin-walled parts are prone to deformation during demolding, so a special demolding method is required. An air-assisted demolding mechanism can be set on the mold. By injecting compressed air into the plastic product, an air film is formed between the plastic product and the mold to reduce demolding resistance, thereby avoiding deformation of the thin-walled part.
In addition, the design of the demolding mechanism also needs to consider the material properties of the plastic product. For some soft and easily deformed plastic materials, a softer demolding method is required, such as using an elastic ejection mechanism or using soft materials such as silicone to make demolding parts to reduce damage to the plastic product.
When designing the demolding mechanism, the overall structure and production efficiency of the mold also need to be considered. The demolding mechanism should be as simple and reliable as possible, easy to install and maintain. At the same time, it is necessary to ensure that the demolding mechanism does not interfere with other mold parts during operation to ensure the normal operation of the mold.
In short, for plastic products with complex shapes, the design of the demolding mechanism of Plastic Mold needs to comprehensively consider factors such as the shape, material properties, mold structure and production efficiency of the plastic product, and adopt reasonable demolding methods and mechanisms to ensure that the plastic product can be demolded smoothly, improve production efficiency and product quality.
