Author: MULAN -Plastic Molding Manufacturer
Today, injection mold processing manufacturers will introduce to you the process of making plastic molds as follows: 1. During injection molding, the mold is clamped on the injection molding machine, molten plastic is injected into the molding cavity, and cooled and shaped in the cavity. 2. The upper and lower molds are separated, and the product is ejected from the mold cavity and left the mold through the ejection system. 3. The mold is closed again for the next injection, and the entire injection molding process is cyclical.
It is understood that as a tool for producing plastic products, plastic molds are composed of several groups of parts, and there are molding cavities in this combination. In industrial production, plastic molds can be used to make metal or non-metallic materials into parts or products of the desired shape through pressure. Factors affecting the production of plastic molds: 1. When the parting surface mold is closed, the concave mold and the convex mold cooperate with each other.
2. The structural parts are sliders, inclined tops, straight tops, etc. of complex molds. 3. Mold precision includes card avoidance, fine positioning, guide pillars, positioning pins, etc. 4. The gating system is located between the nozzle of the injection molding machine and the cavity, and consists of a main flow channel, a runner, a gate and a cold material cavity.
5. Other plastic shrinkage rates and various factors affecting the dimensional accuracy of products, such as mold manufacturing and assembly errors, mold wear, etc. In addition, when designing compression molds and injection molds, the matching of process and structural parameters of the molding machine should also be considered.