Conveyor system with encoders for position sensing in a printing material processing machine

US6736062B2 · kind B2 · utility

Assignee

• Heidelberger Druckmaschinen AG · DE

Inventors

• Hendrik Frank · Heidelberg, DE
• Daniel Raquet · Mosbach, DE
• Stefan Maier · Schwieberdingen, DE

Key dates

• Filing date: Jun 6, 2003
• Grant date: May 18, 2004
• Expiry date: Jun 6, 2023

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B65H2555/13
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

A conveyor system (10) for a sheet of printing material (12) in a printing material processing machine (14), including a running member (16) which can be moved through the machine (14) along a transport path (18) using a drive (22), and including a number of encoders (24) which are arranged along the transport path (18) and used to sense the position of the running member (16), the conveyor system having the feature that the encoders (24) are connected to an evaluation unit (26) for progressive sampling of the encoder signals; it being possible for an active encoder (28) and a passive encoder (30) of the number of encoders (24) to be specified in the evaluation unit (26) so that a drive signal can be generated in a signal processor unit (32) on the basis of a change in amplitude of the signal of the active encoder (28) and a change in amplitude of the signal of the passive encoder (30).