Blattfördersystem

Details

Veröffentlichungs-Nr.

EP3896019

Aktenzeichen

EP20169913

Anmeldetag

16. April 2020

Veröffentlichung

23. November 2022

Erteilung

23. November 2022

Rechtsraum

EP

IPC

B65H9/00B65H7/10

Abstract

A sheet transport system for moving a sheet (24e, 24f) in a transport direction x while adjusting a position of the sheet in a lateral direction z normal to the transport direction x to a target position (zR), the system comprising first and second pinch roller sets (10, 12) spaced apart from one another in the transport direction x, each pinch roller set comprising two pairs (14, 16; 18, 20) of pinch rollers spaced apart from one another in the lateral direction z, each pair forming a nip for pinching and driving the sheet with an individually controllable speed, characterized by comprising a detection system for detecting a position of the sheet in the lateral direction z while the sheet is pinched by the first pinch roller set (10), and a control system configured for carrying out the following actions:- by controlling the speeds of the pinch rollers (14, 16) of the first pinch roller set (10) before the sheet has reached the second pinch roller set (12), rotating the sheet by a first rotation angle for adjusting a given reference point (32) on a leading part of the sheet to its target position (zR); and- when the sheet has left the first pinch roller set (10) and while the reference point travels along a path segment (36) that is symmetric with respect to the second pinch roller set (12), rotating, by controlling the speeds of the pinch rollers of the second pinch roller set, the sheet by a second rotation angle for aligning a leading edge of the sheet in the lateral direction z.

Anmelder

Firma

Canon Production Printing Holding B.V.

Land

🇳🇱 Niederlande

Fachgebiete