Plastic molds are basically divided into static molds and moving molds. The one with a sprue bushing on the injection head side of the injection molding machine is a static mold. The static mold is generally composed of a sprue bushing, a backing plate, and a template. A simple mold can also use a thicker template without using a backing plate. Sprue bushing 1 is a standard part, unless special reasons, it is not recommended to cancel. The use of the sprue bushing is conducive to the installation of the mold and the easy replacement, without having to polish it by yourself.
Some special mold gate sleeves can be drilled out or cut with tapered lines. When a part of the mold must be demolded with a static mold, a static mold demolding mechanism must be added. The structure of the movable mold is generally a movable template, a movable mold plate, a demoulding mechanism, and a mold foot and a fixed plate for installation. The basic way to improve the quality of plastic molds: mold design is the most important step to improve the quality of molds. Many factors need to be considered, including the selection of mold materials, the usability and safety of mold structures, the processability of mold parts and The convenience of mold maintenance, which should be considered as thoroughly as possible at the beginning of the design. The manufacturing process of the mold is also an important part of ensuring the quality of the mold. The processing methods and processing accuracy in the mold manufacturing process will also affect the service life of the mold.
The accuracy of each part directly affects the overall assembly of the mold. In addition to the influence of the accuracy of the equipment itself, it is necessary to improve the processing accuracy of the parts and the technical level of the fitter in the mold grinding process to improve the processing accuracy of the mold parts. . The surface of the parts to be molded of the mold is strengthened to improve the surface wear resistance of the mold parts, thereby better improving the quality of the mold. The correct use and maintenance of the mold is also a major factor to improve the quality of the mold.
