Device for combining an auxiliary stack with a main stack and sheet-fed printing press or sheet punching machine having the device

Patent metadata

Field	Value
Publication number	US-9499358-B2
Application number	US-201514856784-A
Country	US
Kind code	B2
Filing date	Sep 17, 2015
Priority date	Sep 17, 2014
Publication date	Nov 22, 2016
Grant date	Nov 22, 2016

Abstract

A device for combining an auxiliary stack with a main stack includes an auxiliary stack carrier which holds the auxiliary stack and which can be moved out of the stack area for combining the stacks. A holding device firmly holds a lower sheet of the auxiliary stack and an upper sheet of the main stack as the auxiliary stack carrier is moved out of the stack area, in order to maintain a good stack structure. A sheet-fed printing press or sheet punching machine having the device is also provided.

First claim

The invention claimed is:

1. A device for combining an auxiliary stack with a main stack in a stack area, the device comprising:
an auxiliary stack carrier configured to hold the auxiliary stack and to be drawn out of the stack area for combining the auxiliary stack with the main stack, said auxiliary stack carrier being formed as a rake having rods; and
a holding device disposed between at least two of said rods for holding a bottom sheet of the auxiliary stack and a top sheet of the main stack, said holding device having an upper side with at least one suction gripper and a lower side with at least one suction gripper.

2. The device according to claim 1 , wherein said holding device is configured to be positioned between two of said rods of said rake.

3. The device according to claim 1 , wherein said suction grippers are formed as suction openings.

4. The device according to claim 1 , wherein said suction grippers are formed as suction cups.

5. The device according to claim 4 , which further comprises a pair of tongs on which said suction cups are disposed.

6. The device according to claim 5 , wherein said rods of said rake have a height, and said tongs have a height smaller than said height of said rods of said rake.

7. The device according to claim 6 , which further comprises an actuator for actuating said tongs.

8. The device according to claim 1 , which further comprises a suction air source for applying suction air in common to said suction grippers.

9. A sheet-fed printing press, comprising a device according to claim 1 .

10. A sheet punching machine, comprising a device according to claim 1 .

Assignees

• Heidelberger Druckmasch Ag

Inventors

• Wolf Burkhard
• Mueller Andreas
• Grasmueck Georg
• Haeussler Manfred
• Kloss Jens
• Schubert Johannes

Classifications

• B65H2801/21

  Industrial-size printers, e.g. rotary printing press · CPC title

• B65H2406/34

  Suction grippers · CPC title

• B65H1/263 Primary

  Auxiliary supports for keeping the pile in the separation process during introduction of a new pile · CPC title

• B65H2301/42256

  Pallets; Skids; Platforms with feet, i.e. handled together with the stack · CPC title