Method and apparatus for the positionally accurate feeding of sheet-like objects to a treatment process

US6213282A · kind A · utility

Assignee

• LTG AKTIENGESELLSCHAFT · DE

Inventors

• Bernhard Mokler · Markgröningen, DE
• Stephan Gericke · Esslingen am Neckar, DE
• Andreas Vollmann · Ludwigsburg, DE

Key dates

• Filing date: Mar 30, 1999
• Grant date: Apr 10, 2001
• Expiry date: Mar 30, 2019

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B65H2701/1315
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

A method for the positionally accurate feeding of sheet-like objects to a treatment process, the objects being conveyed in succession in a lying position and being aligned during the conveyance. Rotational movement of the conveyed object is carried out to correct a skew position of the front edge of the object, a lateral movement of the object is carried out transversely, in particular at right angles, to the conveying direction for lateral alignment purposes, and an accelerated or decelerated longitudinal movement in the conveying direction is carried out for longitudinal alignment of the object, all the alignment movements being carried out on the surface of an object and without any mechanical alignment action on one or more peripheral edges of the object.