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What is the structure of the plastic mold?1

Author: MULAN -Plastic Molding Manufacturer

Mold injection molding is a processing method used for mass production of some complex shape parts. The specific principle is: push the heated and melted plastic raw material into the cavity of the plastic mold with the screw of the injection molding machine under high pressure, and after cooling and solidifying, a plastic molded product is obtained. The plastic mold consists of a movable mold and a fixed mold.

The movable mold is installed on the movable template of the injection molding machine, and the fixed mold is installed on the fixed template of the injection molding machine. During injection molding, the movable mold and the fixed mold are closed to form the casting system and cavity. When opening the mold, separate the movable mold and the fixed mold to take out the plastic products.

Although the structure of plastic molds may vary greatly depending on the type and function of the plastic, the shape and structure of the plastic product, and the type of injection molding machine, the fundamental structure is the same. The structure of the plastic mold is divided by function. It is mainly composed of: pouring system, temperature control system, molding parts system, exhaust system, guiding system, ejection system, etc. Among them, the casting system and molded parts are parts that are in direct contact with and change plastics.

with plastic and products. They are the most messy part of the plastic mold, vary greatly, and require high finishing and precision. Gate system: refers to the part of the runner before the plastic enters the cavity from the nozzle, including the main runner, cold block, runner and gate.

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