Injection mold working principle and structure of is what?

Injection mold working principle and structure of is what?
Injection mold is an important part of the injection molding process, and its role is to inject the plastic material in the molten state into the mold to form the required molding parts. Injection mold has a complex structure and a high degree of precision process requirements, so it is very important to understand its working principle and structure, let’s take a look at it in detail.

First, what does the working principle of the injection mold mean

The injection mold is mainly divided into two steps in the working process: filling and curing. In the filling stage, the injection molding system of the mold infuses the molten plastic material from the injection molding machine into the mold through a pre-set pressure and flow rate to achieve the purpose of filling the mold cavity. During the curing phase, the plastic material to be injected quickly cools inside the mold and hardens into the molded part. At this time, the mold is opened and the molded part is pushed out of the mold to complete the entire injection molding process.

Second, what does the structure of the injection mold mean

The structure of injection mold includes injection molding system, mold structure, cooling system and exhaust system, etc., each of which has an important impact on the effect and quality of injection molding.

(1) Injection molding system:

It refers to the connection part between the mold and the injection molding machine, through which the molten plastic material in the injection molding machine is transported to the mold to realize the forming of parts. The system includes components such as nozzles, melting buckets and storage buckets.

(2) Mold structure:

It refers to the internal shape and structure of the mold, including the mold cavity, template, billet and guide post. The design and manufacture of injection molds depends on the requirements of the molded products and the characteristics of the shape and size of the parts, so many aspects need to be taken into account in the design process.

(3) Cooling system:

It refers to the cooling channel of the mold, which is used to quickly cool the mold after filling and allow the solidified plastic material to harden and form. The cooling system includes cooling water pipes, cooling holes, cooling water tanks and other components, and its design and arrangement depends on the size and shape of the molded parts, as well as the requirements of production efficiency.

(4) Exhaust system:

It refers to the system used to remove harmful gases such as air and water vapor, which is important in the injection molding process. If these gases are not eliminated in time, it will have a negative impact on the injection molding material, such as causing bubbles, shrinkage holes and so on.

To sum up, understanding the working principle and structure of injection molds is crucial to optimizing the injection molding process and improving the quality of finished products. Only by mastering these basic concepts and process routes can we better achieve standardized and efficient production of molded products.