Anti-abrasion assembly for mailpiece stacking assembly

A mailpiece sorting assembly, comprising:

• a feeder module for feeding and singulating mailpieces from a stack of mailpieces, each mailpiece being fed along a feed path in a first on-edge orientation;
• a scanner for reading information contained on each of the mailpieces, and issuing electronic data useful for grouping the mailpieces for delivery;
• a stacker/sorter having a plurality of sortation bins, each sortation bin having a stacking assembly including:
• a support blade moveably mounted to a bin for accepting a stack of mailpieces;
• an ingestion assembly including a Leading Edge (LE) urge roller and Trailing Edge (TE) alignment device, the LE urge roller operative to accept mailpieces from a supply of mailpieces, and urge a leading edge portion thereof toward a sidewall of the stacking bin and the TE alignment device including a first cam driven about an axis of rotation by a digital rotary positioning device, the first cam defining a surface operative to urge the trailing edge portion of each mailpiece into parallel alignment with the support blade;
• and
• an anti-abrasion linkage responsive to rotation of the digital rotary positioning device to forcibly displace a surface of the stacked mailpieces away from an abrasion surface of the ingestion assembly, and,
• a controller operatively coupled to the feeder, scanner and stacker/sorter for sorting mailpieces in to one of the sortation bins.