The main points of injection mold design

The main points of injection mold design

Vacuum molding injection mold design, the mold cavity of compressed air molding is basically the same as the vacuum molded mold cavity. The main feature of compressed air molding mold is to set the blade at the edge of the injection mold. The angle of the blade is preferably 20 ° to 30 °, the top is flattened 0.1 to 0.15mm, and the arcs of R = 0.05mm are connected on both sides. The blade should not be too sharp, avoid cutting off as soon as it is in contact with the plastic board; the blade cannot be too blunt, causing the remaining material to not be cut. The top of the top of the blade is higher than the thickness of the end surface of the type cavity. It can make the board do not contact the heating plate during the molding period, avoiding the product defects from overheating. The installation of the blade is also important. There should be a gap between 0.25 to 0.5mm between the blade and the cavity. As a path of air, it is also easy to install the injection mold. In order to compress the plate, it is required to have a high parallel degree and plane degree from the heating plate to avoid the phenomenon of air leakage.