1. Importance of parting surface
Parting surface plays a vital role in the design of injection mold. It is the contact surface used to separate the cavity and the core in the mold, which directly affects the quality of the product, the difficulty of mold manufacturing and production efficiency. A reasonable parting surface selection can ensure the smooth demolding of the product, reduce the difficulty and cost of mold processing, and improve the appearance quality and dimensional accuracy of the product. Therefore, in the design process of injection mold, correctly determining the parting surface is a key link.
2. Considerations for determining the parting surface
First, consider the shape and structure of the product. The parting surface should be selected at the maximum contour of the product as much as possible to facilitate the demolding of the product. For products with complex shapes, it may be necessary to consider multiple factors to determine the parting surface. For example, for products with side concave or side holes, it is necessary to consider the use of a lateral parting mechanism. At this time, the selection of the parting surface should be coordinated with the design of the lateral parting mechanism. Secondly, the difficulty and cost of mold manufacturing should be considered. The selection of the parting surface should be as simple as possible to avoid complex curved surfaces or sharp corners to reduce the difficulty and cost of mold processing. At the same time, the selection of the parting surface should also consider the strength and rigidity of the mold to ensure that the mold will not be deformed or damaged during use. In addition, the appearance quality requirements of the product need to be considered. The location of the parting surface should be selected as far as possible without affecting the appearance of the product, avoiding leaving obvious parting lines on the surface of the product.
3. Methods for determining the parting surface
When determining the parting surface, the following methods can be used. The first is the empirical method, which is determined based on previous design experience and the selection of parting surfaces of similar products. This method is simple and fast, but may have certain limitations. The second is the analytical calculation method, which determines the optimal parting surface position by analyzing and calculating the shape, size, structure, etc. of the product. This method is more accurate, but requires certain professional knowledge and computing power. The third is the simulation analysis method, which uses computer-aided design software to simulate and analyze the injection molding process, observe the molding of the product under different parting surfaces, and thus determine the optimal parting surface position. This method is intuitive and reliable, but requires certain software operation skills and computing resources.
The determination of the injection mold parting surface is a complex process, which requires comprehensive consideration of multiple factors such as the shape, structure, manufacturing difficulty, cost, and appearance quality of the product. When determining the parting surface, you can use a variety of methods such as empirical method, analytical calculation method and simulation analysis method to ensure that the selected parting surface is reasonable and reliable. At the same time, with the continuous development and innovation of injection molding technology, the method of determining the parting surface is also constantly improving and perfecting. In the actual design process, the designer should choose the appropriate method according to the specific situation to improve the design quality and production efficiency of the injection mold.
