Suction tube for collecting broken ends of yarn at the outlet of a textile machine

US4825634A · kind A · utility

Assignee

• Zinser Textilmaschinen GmbH · DE

Inventors

• Ernst Halder · Renningen, DE
• Friedrich Dinkelmann · Rechberghausen, DE
• Robert Buder · Memmingen, DE
• Uwe Fuchs · Munich, DE
• Dieter Horak · Mönchengladbach, DE
• Hans-Heinz Schafer · Schwalmtal, DE

Key dates

• Filing date: Dec 15, 1987
• Grant date: May 2, 1989
• Expiry date: Dec 15, 2007

Classification

• Technology area (CPC D): Textiles; Paper
• CPC primary: D01H5/68
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

A suction tube for a fly frame, roving frame, ring spinning machine or the like for collecting broken ends of yarn at the outlet rollers of the machine. The suction tube is connected to a collection chamber through a flexible sealing sleeve that permits the suction tube to pivot between its operative and inoperative positions. The suction tube comprises a suction end disposed under the bottom roller of the outlet rollers that has a body portion formed with a suction opening therein, an opposite end connected to the flexible sealing sleeve, and a pair of side walls projecting upwardly from the suction end body portion toward the bottom roller and longitudinally beyond the suction opening on opposite sides of the yarn for confining the suction substantially to the bottom roller and the yarn path. The side walls also have upper edges which are arcuately shaped to correspond approximately to the shape of the bottom roller so that the upper edges will contact the bottom roller and space the suction tube from the roller when the suction tube is unintentionally forced upwardly toward the bottom roller, thereby preventing damage to the suction tube.