Variable Extrusion Gate for Composite Bead Shaping

The patent introduces a movable gate that can dynamically adjust its position to change the effective opening shape of the die. The gate moves along the die opening to create different bead cross-sectional shapes, transforming a static extrusion system into a dynamic one that can adapt to various channel geometries without replacing the die itself.

The die opening is effectively segmented by the movable gate, which divides the single fixed die opening into multiple configurable openings. By positioning the gate at different locations, the system creates different effective opening shapes, allowing one die to serve multiple functions that would traditionally require multiple specialized dies.

The patent makes a single die opening multi-functional by introducing the movable gate mechanism. Instead of requiring multiple specialized dies for different channel geometries, one die can produce various bead shapes by adjusting the gate position, achieving universal applicability across different channel cross-sections.

The system achieves different bead shapes by changing the positional parameter of the gate rather than changing the physical die geometry. By varying the gate's position along the die opening, the effective opening shape changes, allowing precise bead formation for different channel cross-sections without modifying the die itself.