Abstract
This chapter introduces a simple and cost-effective in-mold labeling (IML) system developed for high speed and multi-cavity injection molds. The core system for an IML system is based on an electro-mechanical design. The various pneumatic pistons and vacuum generators are controlled with a PLC. The motion of the transfer arms are mechanically controlled by a spline, driven by the moving plates of the injection machine. The speed of the IML system is controlled by the rate at which the mold is opened and closed. By tying the system directly to the mold, it does not increase the cycle time. The speed of the IML system is very important for high-speed injection molds. A delay because of an IML system's slower speed can strongly affect the bottom-line of molders. The system's transfer arm is made from aluminum to reduce the inertial loads being applied onto the links. The linear motion of the transfer arm is controlled through a set of linear guide rails. The linear guides limit the sliding motion to a lateral direction.
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