2-plate plastic injection mold is a type of mold commonly used in plastic production. Unlike other types of molds, 2-plate plastic injection molds have a simple structure with two main parts: the upper mold and the lower mold. When plastic is injected, the mold opens to release the product after the plastic has solidified in the mold. Widely used in the production of plastic products such as bottle caps, electronic components, and device housings, the mold has advantages in production and operating costs, making it a suitable choice for manufacturers who want to optimize costs.
The structure of a 2-plate plastic injection mold includes the following main components:
2.1. Upper Mold (Cavity Plate)
The upper mold is the part that holds the shape of the final product. When hot plastic is injected into the mold, it will fill the cavities in the upper mold to form the product according to the required shape and size.
2.2. Core Plate
The core plate is the base of the mold, located opposite the upper mold. The core plate and the upper mold form the plastic chamber. This part is also designed to optimally support the separation of the product after the injection process is completed.
2.3. Runner System
This system includes the runners and injection ports. The liquid plastic from the injection machine will be led through this system and poured into the mold cavity. The runner system is often precisely designed to ensure that the plastic fills the 2-plate mold evenly.
2.4. Ejector System
After the plastic product has completed the injection and solidification process, the ejector system will operate to push the product out of the mold. The ejector system helps increase production speed and minimize the risk of damaging the product during the ejection process.
The operating principle of the 2-plate plastic injection mold is designed to be simple but very effective:
3.1. Heating Plastic and Pumping into the Mold
When starting, the plastic in a liquid state is pumped into the mold through the plastic pipe system. Here, the liquid plastic will be evenly distributed in the mold cavity under the impact of high pressure from the press.
3.2. Cooling the Plastic in the Mold
The liquid plastic when filled into the mold will need a cooling time to solidify, forming a complete product. The cooling system in the mold helps control the temperature of this process, ensuring that the plastic solidifies on time and minimizing the risk of deviation in product size.
3.3. Mold Separation and Product Ejection
When the plastic has completely solidified, the mold will open and the product ejection system will automatically push the product out. This process is fast, thanks to the efficient ejector system, which helps increase production speed and reduce injection cycle time.
4.1. Advantages
Simple design: Plastic injection molds have a simple structure, are easy to manufacture and maintain, helping to reduce production costs.
High production speed: The injection process is fast, optimizing production cycle time.
Cost savings: Compared to more complex molds, plastic injection molds have lower production costs.
4.2. Disadvantages
Product design limitations: 2-plate plastic injection molds are only suitable for products that do not require complex structures.
Easy to cause damage during mass production: If not properly maintained, 2-plate plastic injection molds may encounter problems such as mold deformation, affecting product quality.
2-plate plastic injection molds are widely used in the production of many types of plastic products, from small components in electronics to more complex parts such as phone cases and household appliances. This type of mold is suitable for products with simple shapes and no special requirements for complex details. In the manufacturing industry, molds play an important role in cost-effective production and fast molding cycle times.
At DPT Vietnam, we specialize in providing high-quality 2-plate plastic injection mold manufacturing services, helping customers optimize production costs and achieve high-quality products. Plastic injection molds at DPT are designed with high precision, helping to save raw materials and limit defective products.
2-Plate Plastic Injection Molding is an optimal solution for businesses that produce plastic products at low cost and with fast production time. Thanks to its simple but effective structure, this type of mold is suitable for many applications in the plastic industry. If you are looking for a reliable plastic injection molding solution, come to DPT Vietnam to experience professional service and high-quality products.
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