Drafting Device Guide Surfaces Fiber Compression Blockage

The patent transitions from a narrow linear compression channel to a broader compression zone with guide surfaces that deflect fibers in multiple directions. Instead of compressing fibers through a confined narrow passage, the guide surfaces redirect fibers transversely and axially, distributing them across a wider area while achieving compression through deflection and compacting actions.

The compression function is divided into multiple stages performed by different guide surfaces. The first guide surface deflects fibers in one direction, the second guide surface deflects them in another direction, and the third guide surface performs additional deflection. This segmentation allows each surface to work independently with adequate spacing, preventing blockage while achieving cumulative compression effect.

The patent achieves compression not by reducing the distance between opposing surfaces in a narrow channel, but by using guide surfaces spaced apart that deflect fibers through axial and transverse movements. The compression result comes from the cumulative effect of multiple deflections rather than from confinement in a narrow gap, allowing adequate spacing to prevent clogging.

The guide surfaces perform preliminary deflection actions on the fiber structure before final compaction. The first and second guide surfaces prepare the fiber arrangement by deflecting them in different directions, creating a pre-compressed state that allows the third guide surface to complete the compaction without requiring close spacing that would cause clogging.