In an LED lens injection mold, the front mold (cavity side) and the back mold (core side) can be distinguished based on their functions and structure:
1. Front Mold (Cavity Side):
Function:
The front mold is responsible for forming the external shape of the LED lens. It usually creates the outer surface of the lens, which determines its optical performance, such as the beam angle or light distribution.
Features:
This side is typically smoother and more complex, as it shapes the detailed optical surfaces. It also houses the gate system where the molten material enters the mold cavity.
2. Back Mold (Core Side):
Function:
The back mold forms the internal structure of the LED lens. Its primary role is to create the internal features, such as the thickness and any supporting structures inside the lens.
Features:
The back mold usually has a more straightforward geometry, as it focuses on creating the interior parts of the lens. It also often includes ejector pins, which help in pushing the finished product out of the mold after cooling.
Summary:
Front Mold (Cavity Side): Shapes the outer surface and defines the lens's optical properties.
Back Mold (Core Side): Forms the internal structure and assists in the ejection of the molded lens.
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