Injection System:

The injection system is a crucial component of a plastic pallet mold responsible for delivering the molten plastic material into the cavity and core. It consists of several sub-components, including the sprue, runner system, and gates.

Sprue:

The sprue is the main channel through which the molten plastic material is injected into the mold. It is typically located at the edge of the mold or at a designated entry point. The size and design of the sprue are determined by factors such as the volume of plastic material required and the flow characteristics of the material.

Runner System:

The runner system consists of channels that connect the sprue to the various gates leading to the cavity and core. It distributes the molten plastic material evenly throughout the mold, ensuring consistent filling and cooling. The design of the runner system plays a crucial role in minimizing waste, reducing cycle time, and optimizing the overall efficiency of the molding process.

Gates:

Gates act as flow control valves between the runner system and the cavity/core. Their primary function is to allow the molten plastic material to enter the cavity while preventing excessive leakage or flash. The design and location of the gates are critical in ensuring proper flow and filling of the mold, as well as facilitating the smooth ejection of the finished plastic pallet.