Detection system for detecting double sheets in a sheet element processing machine, and sheet element processing machine

Abstract

A detection system for detecting double sheets being supplied to a lateral positioning device (100) for a sheet element (20, 20′) in a sheet element processing machine. The machine has a drive system including a cam disk (174) and a cam follower lever (172). The detection system includes a detector lever (130) mounted so as to be displaceable between a sheet receiving position and a detection position. The detector lever (130) has a sheet sensing end (132) for engagement with an upper face of the sheet element (20, 20′) when being in the detection position, and a position detector end (133) for cooperating, when being in the detection position, with a position detector (140) adapted for generating a signal dependent on the thickness of the sheet element (20, 20′), and further includes a raising lever (170) for raising the sheet sensing end (132) of the detector lever (130). The raising lever (170) is mounted on the cam follower lever (172) of the sheet element processing machine. Further disclosed is a sheet element processing machine including a detection system as outlined above, mounted in an introduction station (10) upstream of a processing station.

Dependencies are inferred from the claim text.