Mixed dryer section including single-tier and double-tier drying groups with automatic ropeless threading

US5600897A · kind A · utility

Assignee

• J.M. Voith GmbH · DE

Inventors

• Hans-Peter Sollinger · Heidenheim, DE
• Gerhard Kotitschke · Steinheim, DE
• Hans-Jurgen Wulz · Heidenheim, DE
• Peter Kahl · Gerstetten, DE
• Wolfgang Mueller · Wappingers Falls, US

Key dates

• Filing date: Nov 12, 1993
• Grant date: Feb 11, 1997
• Expiry date: Nov 12, 2013

Classification

• Technology area (CPC D): Textiles; Paper
• CPC primary: D21G9/0063
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

In the initial region of the dryer section at least one of the dryer groups (23) is developed as a single-felt dryer group in which a single endless felt (F) and the web (9) travel alternately over cylinders (73) and guide suction rolls (73'). In the final region of the dryer section there is present at least one double-felt dryer group (24) in which a web (9) travels alternately over lower (74) and upper (74') cylinders. The single-felt group (23) has an automatic ropeless tail guide device (76, 79) for the threading of the so-called tail. In the double-felt dryer group (24) an automatic ropeless tail guide device (77, 78) is also present.