Methods for setting the contact pressure of a displaceably mounted roller

• US 20080229961A1
• Filed: 05/28/2008
• Published: 09/25/2008
• Est. Priority Date: 09/21/2002
• Status: Abandoned Application

• Current Assignee: Bernd Klaus Faist, Georg Schneider, Peter Jentzsch
• Original Assignee: Bernd Klaus Faist, Georg Schneider, Peter Jentzsch
• Inventors: Schneider, Georg, Faist, Bernd Klaus, Jentzsch, Peter
• Application Number:
  US12/153,938
• Publication Number:
  US 20080229961A1
• Time in Patent Office: Days
• US Class Current: 101/485
• CPC Class Codes: B41F 13/34 Cylinder lifting or adjusting devices
• CPC Class Codes: B41F 13/40 fluid-pressure operated
• CPC Class Codes: B41F 31/301 Devices for tripping and adjusting form rollers
• CPC Class Codes: B41F 31/36 fluid-pressure operated
• CPC Class Codes: B41F 7/40 Devices for tripping or lifting damping rollers; Supporting, adjusting, or removing arrangements therefor such arrangements or devices for inking rollers B41F31/30

Abstract

A method is used to set a contact pressure between a displaceable roller and another roller or for moving the displaceable roller with respect to the other roller. At least one actuator is subjectible to the action of a pressure medium and presses the displaceable roller toward the other roller with an adjustable force. The pressure of the pressure medium can be adjusted by a valve. A switchover device is provided for use in connecting the valve to different actuators, as desired.

Claims

1. A method for setting a contact pressure between displaceably seated first rollers and at least a second roller of a printing press including:

providing at least one actuator in each of said first rollers;

using said at least one actuator and pushing each said first roller, with an adjustable force, toward said second roller;

providing a break in a surface of said second roller;

providing a fixation device in each of said first rollers; and

operating said fixation device in one of said first rollers and not operating said fixation device in another of said first rollers.

2. The method of claim 1 further including first adjusting said actuators and then operating said fixation device.

3. The method of claim 1 further including first operating said fixation device and then operating said actuator.

4. The method of claim 2 further including releasing said fixation device.

5. The method of claim 1 further including providing at least two actuators for each said first roller.

6. The method of claim 5 further including causing one of said actuators to act in a direction of one of said first rollers and causing another of said actuators to act in a direction of another of said first rollers.

7. The method of claim 5 further including using each of said at least two actuators for providing different contact pressures.

8. The method of claim 1 further including providing said second roller as a forme cylinder and wherein an actuator in each said first roller contacting said forme cylinder is actuated.

9. A method for setting a contact pressure between a displaceably seated first roller and at least a second roller of a printing press including:

providing at least one actuator in said first roller;

using said at least one actuator for pushing said first roller toward said second roller;

providing a break on a surface area of said second roller;

providing a fixation device for fixing said first roller in place; and

operating said actuator and said fixation device simultaneously.