What are the Structural Components of Injection Molds?Injection molds are key tools for producing plastic products. They consist of seven parts, including mold base, fixed plate, slider system, mold core and mold cavity, ejector system, cooling system, and nozzle system. Each part has a specific function.

What are the Structural Components of Injection Molds?

Injection molds are key tools for producing plastic products. They consist of seven parts, including mold base, fixed plate, slider system, mold core and mold cavity, ejector system, cooling system, and nozzle system. Each part has a specific function.

The following is a detailed introduction to the seven parts of the injection mold structure:

(1) Mold base: The mold base is the basic component of the injection mold. It supports and fixes the entire mold structure. It is usually made of high-quality alloy steel and has sufficient strength and rigidity to withstand the pressure and extrusion during the injection molding process.

(2) Fixed plate: The fixed plate is located above the mold base and is used to fix the various parts of the mold. It is usually made of high-quality alloy steel and has sufficient strength and rigidity to ensure the stability and rigidity of the mold during the injection molding process.

(3) Slider system: The slider system is used to realize the molding of complex product structures and internal cavities. It includes sliders, guide pillars, guide sleeves and other parts, which realize the opening and closing and movement of the mold by sliding or rotating. The slider system needs to have high precision and stability to ensure the accuracy of the shape and size of the product.

(4) Core and cavity: The core and cavity are the most important parts of the injection mold, which determine the shape and size of the final product. The core is the internal cavity part of the product, while the cavity is the external shape of the product. The core and cavity are usually made of high-quality tool steel or high-speed steel, and are precision machined and heat treated to improve their hardness and wear resistance.

(5) Ejector system: The ejector system is used to eject the molded product from the mold. It includes components such as the ejector rod and the ejector plate, and the ejection of the product is achieved through the movement of the ejector rod. The ejector system needs to have sufficient strength and stability to ensure the ejection effect and production efficiency of the product.

(6) Cooling system: The cooling system is used to control the mold temperature to ensure the molding quality and production efficiency of the product. It includes components such as cooling water channels and cooling devices, which absorb heat in the mold through circulating cooling water. The cooling system needs to be designed reasonably to ensure uniform cooling of all parts of the mold to avoid stress and deformation.

(7) Nozzle system: The nozzle system is used to inject molten plastic into the mold to achieve product molding. It includes components such as nozzles and nozzle tips, and realizes product injection molding by controlling the opening and closing of the nozzle and the flow of molten plastic. The nozzle system needs to have good sealing and wear resistance to ensure the normal injection of plastic and the quality of the product.

In addition to the above main structural components, the injection mold also includes some auxiliary components, such as positioning pins, threaded rods, springs, etc., which are used to assist the positioning, adjustment and movement of the mold. These components play an important role in the injection molding process and need to have sufficient strength and precision to ensure the stability and production efficiency of the mold.

In summary, the structural components of the injection mold include mold base, fixed plate, slider system, mold core and mold cavity, ejector system, cooling system and nozzle system. Each component has a specific function and completes the injection molding process of plastic products together.