Auto Parts Custom Small Quantity Injection Molding

Plastic injection molds are basically divided into static molds and dynamic molds. The one with the sprue sleeve on the side of the injection head of the injection molding machine is a static mold. The static mold is generally composed of a sprue sleeve, a backing plate, and a template. A simple mold (especially a mold without a core in the static mold) can also not use a backing plate. , you can directly use a thicker template. The sprue sleeve is generally a standard part, and it is not recommended to cancel it unless there are special reasons. The use of the sprue sleeve is conducive to the installation of the mold, the replacement is convenient, and there is no need to polish it yourself. Some special mold sprue sleeves can be drilled out or cut with a tapered wire. When part of the mold must be released from the static mold, a static mold release mechanism must be added.
The structure of the moving mold is generally a moving template, a moving mold backing plate, a demolding mechanism, a mold foot and a fixed plate for installation. In addition to the stripping rod, there is also a return rod in the demoulding mechanism, and some molds also need to add springs to achieve functions such as automatic demoulding. There are also guide pillars, cooling water holes, runners, etc.