How to solve the deviation of fixed mold of injection mold

The injection mold is composed of two parts: moving mold and fixed mold. The moving mold is installed on the moving template of the injection molding machine, and the fixed mold is installed on the fixed template of the injection molding machine. During the operation of the injection mold, the fixed and moving molds may be offset, resulting in rough and damaged guide column surface. In severe cases, the guide post can bend or cut, or even fail to open the mold.

The reasons for the deviation of fixed mold of injection mold are as follows:

1. Charging rate is different. Large mold will produce moving mold and fixed mold migration, and moving and fixed mold migration will put lateral migration force on the guide post, resulting in the guide post surface hair, damage, bending, cutting and other conditions.

2. During mold installation, it is affected by mold self-weight. In the continuous action of mold opening and closing, due to the different weight of the moving mold and the fixed mold, it will gradually lead to deviation.

The solution to the deviation of fixed mold of injection mold is as follows:

1. Add high-strength positioning keys, such as cylindrical keys, on the parting surface of injection mold. This will greatly reduce the probability of fixed and dynamic mold deviation.

2. Pay attention to the perpendicularity between the guide post hole and the die parting surface, and ensure the concentricity of the moving and fixed die during processing to reduce the perpendicularity error;

3. Ensure that the heat treatment hardness of guide column and guide sleeve meet the design requirements. Guide column and guide sleeve hardness is not enough, it is easy to deformation, resulting in the deviation of fixed die and dynamic die.

Verticality is very important for injection mold guide hole and parting surface. In processing, is the use of dynamic, fixed mold alignment position clamping after injection processing. The mission of Fanstar is to master the core technology of injection molding production, to communicate and analyze the technology before the production of injection molding with customers from the production needs of finished products, so that the injection mold delivery time is short, the service life is long, the mass production is fast and the finished product quality is excellent! Have the need of injection molding injection mold welcome to contact us!