A PROCEDURE AND A DEVICE FOR THE AXIAL CRUMPLING OF THIN WALLED, INFLATED TUBULAR MATERIAL, ESPECIALLY FOR THE PRODUCTION OF SAUSAGES.

摘要

The axial shirring of thin walled inflated tubular material, especially for sausage manufacture, with a mandrel providing a radial bracing in its interior, occurs in combination with at least one air stream directed obliquely against the axis of the tubular material, wherein the air stream force is allowed to revolve about the said axis as the tubular material moves axially along the mandrel. The tubular material is thereby axially compacted against a stop with formation of regular folds or "shirrings". Shirring formation can be readily influenced by changing the air pressure. The nozzle or nozzles is or are connected to a source of compressed air and can be directed obliquely against the mandrel axis as it or they revolve about the said mandrel axis.