What are the effects of rubber mold design on demoulding?

Rubber mold is one of the main equipment for the production of rubber products, the principle of mold pressing out can be divided into injection mold, die casting mold, die molding mold design is based on the shape of the product, die casting mold, characteristics and use requirements, according to the same rubber product and design several different structures of the mold. Mold structure is directly related to product quality, production efficiency, mold processing difficulty and service life. So the design and research of mold structure is very important.

In order to ensure that rubber products have the correct geometry and a certain dimensional accuracy, the mold design should follow the following principles:
1. Master and understand the hardness, shrinkage and use requirements of the materials used in rubber products.
2. To ensure the shape of the product, the size of the outline.
3. The mold structure should be simple and reasonable, the positioning should be reliable, the installation and disassembly are convenient, and the operation is easy.
4. The number of mold cavities is appropriate, which is convenient for mechanical processing and mold use, and should take into account production efficiency.
5. The mold should have sufficient strength and stiffness, and strive to be small in shape, light in weight, easy to process and in line with the production process.
6. The mold cavity should be easy to load and remove the product, vulcanization, the rubber material should have enough pressure.
7. The mold should have a certain precision, finish and reasonable parting surface, easy trimming.
8. The mold should have a broken rubber groove, which is conducive to cleaning.
9. Mold design should be in line with serialization, standardization, and strive for good universality. According to the requirements of die design, the factors that affect the release of products are die stiffness, release resistance, ejection mechanism, etc.