What are the Basic Common Sense of Injection Mold Structure?

What are the Basic Common Sense of Injection Mold Structure?Injection mold is the key to injection molding, and its structural design has an important impact on various aspects such as product quality, production efficiency and production cost.

What are the Basic Common Sense of Injection Mold Structure?

Injection mold is the key to injection molding, and its structural design has an important impact on various aspects such as product quality, production efficiency and production cost.

The following is a detailed introduction to the basic common sense of injection mold structure. There are mainly the following 6 aspects, I hope it will be helpful to everyone.

1. Mold basic structure
The mold basic structure mainly includes upper template, lower template, fixed plate, movable plate, guide pin and guide sleeve, template spacing adjustment mechanism, ejection device and other components. Among them, the upper template and the lower template are the two main parts of the mold, which are connected together by the fixed plate, and are positioned by the guide pin and guide sleeve to ensure the accuracy and stability of the mold.

2. Injection molding system
The injection molding system includes nozzle, hopper, screw, heater and thermostat, etc. Its function is to heat and melt the plastic raw material, and inject the molten material into the mold through the nozzle to form a product. In the injection molding system, the screw is the core component, and its diameter, cross-sectional area, length, pitch and other parameters have a decisive influence on the stability, fluidity, pressure and speed of the injection molding process.

3. Cooling system
The cooling system is mainly composed of water channels, water inlets, etc. Its function is to control the temperature of the mold by introducing cooling water into the mold to ensure the high quality, consistency and stability of the product during the molding process. At the same time, a reasonably designed cooling system can also optimize the injection molding cycle and improve production efficiency.

4. Ejector
The ejector is a key component for demolding the molded parts from the mold. Its function is to push the molded parts out of the mold through compression springs or hydraulic forces, and ensure that the shape, size and surface quality of the parts are intact.

5. Mold material
The choice of mold material directly affects the life and cost of the mold. According to different application scenarios and requirements, common mold materials include tool steel, cemented carbide, aluminum alloy and polymer materials. When selecting mold materials, factors such as the shape, size, material, and production batch of the injection molded product need to be considered.

6. Mold maintenance
During the production process, the mold will be affected by thermal expansion, thermal contraction and friction, and it is easy to produce problems such as cracks, wear and deformation. In order to ensure the stability and long-term use of the mold, regular maintenance, cleaning and trimming are required, especially the rust prevention and maintenance of the mold.

In short, the structural design of the injection mold is one of the important links in the injection molding process. The size, shape, material and parameters of each part need to be reasonably designed according to actual needs to ensure the production of high-quality, efficient and reliable injection molded products.