Heidelberger Druckmaschinen Ag

Michael Östreicher

Udo Ganter

Jochen Renner

Herbert Ackermann

Mario Pfitzenmeier

Volker Kautz

A machine for folding sheets receives a stream of sheets. A first folding unit is followed by a further unit. The first folding unit has at least one buckle plate and at least two folding rollers to fold the sheets. A monitoring device checks the stream for defects. A control unit activates a removal device for removing waste products when a defect is detected. The monitoring device is disposed at the entry region of the buckle plate and monitors the stream in the buckle plate. The removal device is disposed downstream of the first folding unit and upstream of the further unit. The system, which is suitable for industrial folding machines, reliably detects unusable waste products in the folding process even before production might be affected.

Sheet folding machine with waste product removal

In a spring-action suction head for separating sheets from a sheet stack, a first suction chamber, which can be subjected to vacuum is provided for lifting the sheet. The first suction chamber is surrounded coaxially by a second suction chamber, which can be subjected to vacuum, for holding and lowering the spring-action suction head in a controlled manner.

Growing community of inventors

Karlsruhe, Germany

Michael Östreicher