The injection mold consists of two parts: a movable mold and a fixed mold. The movable mold is mounted on the moving template of the injection molding machine, and the fixed mold is mounted on the fixed template of the injection molding machine. In the injection molding, the movable mold and the fixed mold close constitute a casting system and a cavity, and when the mold is opened, the movable mold and the fixed mold are separated to take out the plastic product.
According to the molding characteristics, the injection mold is divided into two types: thermosetting plastic mold and thermoplastic plastic mold; according to the molding process, it is divided into plastic mold, blow mold, casting mold, thermoforming mold, hot stamping mold (compression molding), injection mold, etc. The hot stamping die can be divided into three types: overflow type, semi-overflow type and non-overflow type. The injection mold can be divided into two types: cold runner mold and hot runner mold; Can be divided into mobile, fixed two.
Injection molds are a tool for producing plastic products; they are also tools that give plastic products complete structure and precise dimensions. Injection molding is a processing method used in mass production of complex parts of certain shapes. Specifically, the plastic melted by the heat is injected into the cavity by the high pressure of the injection molding machine, and after cooling and solidifying, the molded article is obtained.
Although the structure of the mold may vary depending on the type and performance of the plastic, the shape and structure of the plastic product, and the type of the injection machine, the basic structure is uniform. The mold is mainly composed of a gating system, a temperature control system, a molded part and a structural part. The gating system and the molded part are in direct contact with the plastic and vary with the plastic and the product. It is the most complicated and most varied part of the mold, and requires the highest degree of smoothness and precision.
The pouring system refers to the part of the flow path before the plastic enters the cavity from the nozzle, including the main channel, the cold material hole, the split channel and the gate. Molded parts refer to various parts that make up the shape of the product, including moving molds, fixed molds and cavities, cores, forming rods, and exhaust ports. Typical molding structure.
Post time: Nov-03-2019