Granulating device for strand materials

US5628465A · kind A · utility

Assignee

• Rieter Automatik GMBH · DE

Inventors

• Peter Locker · Großostheim, DE
• Walter Pirrung · Großostheim, DE

Key dates

• Filing date: Mar 21, 1995
• Grant date: May 13, 1997
• Expiry date: Mar 21, 2015

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B02C2018/2208
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

The invention relates to a granulating device for strand materials comprising a pull-in device for feeding the strand material, conducted through an inlet shaft, and transporting it to a knife roll for cutting up the strand material into granulate, said pull-in device having a pull-in roll, and a counter-roll, of which rolls at least one is driveable and both form a inter-roll gap for pulling-in the strand material. A proximity-type switching element is disposed in the region of the inlet shaft, particularly in front of the entrance thereof, said proximity-type switching element raising, when actuated, the setting of the inter-roll gap and increasing the inter-roll gap to such a width that the further pulling-in of the strand material is abruptly stopped.