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Classification of injection molds
According to their molding characteristics, they can be divided into thermosetting molds and thermoplastic molds; According to the molding process, it can be divided into conveying molds, blow molding molds, casting molds, thermoforming molds, hot pressing molds (pressure molds), and injection molds. Among them, hot pressing molds can be divided into overflow molds, semi overflow molds, and non overflow molds. Injection molds can also be divided into cold runner molds, hot runner molds, and non overflow runner molds. There are two types of molds, which can be divided into movable and fixed types according to the loading and unloading methods.
Application areas of injection molds:
Injection molds are important process equipment for producing various industrial products. With the rapid development of the plastic industry, the demand for plastic products in industries such as aviation, aerospace, electronics, machinery, ships, and automobiles is increasing. Traditional mold design methods cannot meet today's requirements. Compared with traditional mold design, computer-aided design is more effective. Engineering auxiliary technology has great advantages in improving productivity, ensuring product quality, reducing costs and labor intensity.Injection molds are used for various CNC machining, mainly for CNC milling machining centers. CNC Wendm and CNC EDM have also been widely used in CNC machining of molds. Wedm is mainly used for processing various straight wall molds, such as concave convex molds in stamping, inserts, sliders in injection molds, spark electrodes, etc. wait. For mold parts with high hardness, it is not possible to process them using machining methods, mainly electrical discharge machining. In addition, EDM is also used for narrow grooves in acute angles, deep cavities, and dead cavities. The CNC lathe is mainly used for processing standard parts of mold bars, as well as the core of mold cavities or rotating bodies, such as injection molds for bottles and basins, and forging dies for shafts and discs. In mold processing, the application of CNC drilling machines can also improve processing accuracy and shorten processing cycles.
Molds have been widely used in modern manufacturing industry. Almost requires molds to complete the molding process of product components. The mold industry is an important component of the national high-tech industry and a valuable technological resource. Optimize the structural design of the mold system, improve the intelligence of mold parts, enhance the molding process and standardization level of mold parts, and improve the accuracy and quality of mold manufacturing; Reduce the workload and manufacturing cycle of surface grinding and polishing of molds, research and apply various specialized materials for mold parts with good performance and easy cutting, and improve the quality of mold manufacturing. quantity In order to adapt to the diversification of the market and the trial production of new products, rapid prototyping manufacturing technology and rapid tooling technology are applied to the rapid manufacturing of molds. Injection molds or die-casting molds should become the development trend of mold production technology in the next 5 to 20 years.
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