How to choose the proper parting surface of injection mold?

How to choose the right parting surface of the injection mold is very important. The choice of parting surface of the injection mold is not only related to the structure and cost of the mold, but also related to the molding and release of the injection product. Injection mold parting surface selection must adhere to ensure the quality of injection products, easy to release and simplify the structure of the mold these three principles.

Adhere to the above three principles on the basis of injection mold should be how to choose the right parting surface?

1. Selection of parting surface of long component

If the length of the plastic parts is long, such as the tube, column, rod shaped plastic parts, such as the injection mold cavity is placed in a piece of template, will make the release inclination is too large, if the cavity is arranged in the moving and fixed mold, can reduce the release inclination, so that the size difference between the two ends of the plastic parts is not too large.

2. Leave the plastic parts on the parting surface of the moving die side for selection

By leaving the injection moulds at the moving die side, it is easy to set up and manufacture the demoulding mechanism with simple structure. Therefore, the selection of parting surface should try to keep the plastic parts in the moving die side.

3. Selection of parting surface to ensure the appearance quality of plastic parts

The appearance quality of injection mold plastic parts needs to be guaranteed, and the parting surface should be carefully considered when selecting the parting surface. For example, the parting surface should not be set on the smooth surface or the arc curved surface as far as possible.

4. Ensure the selection of coaxiality parting surface

Many injection moulds have coaxiality requirements. This requirement should be guaranteed in the mold design. Generally, the parts with coaxiality requirements should be designed in the same moving template to meet the accuracy requirements.

5. The parting surface is conducive to the selection of exhaust

The parting surface is often used as the exhaust channel in the injection mold. In order to smooth the exhaust, the parting surface should be located at the end of the melt flow material, and attention should not be blocked at the end.

6. Selection of parting surface to ensure accuracy

Some surfaces on plastic parts require higher precision, such as thread surface and mating surface. At this time, the parting surface of injection mold can not pass through these surfaces, otherwise it will affect the accuracy of plastic parts, and even difficult to use.

Parting surface should not choose the smooth outer surface of plastic parts to avoid affecting the appearance quality of plastic parts. The selection of parting surface of injection mold requires the summary and accumulation of experience at ordinary times. The mission of Fanstar is to master the core technology of injection molding production, communicate and analyze the technology before mold production with customers from the production needs of finished products, so that the mold delivery time is short, the service life is long, the rapid mass production and the finished product quality is excellent! Have the need of injection mold welcome to contact us!