Patent ID: 7967176
Filing Date: 2011-06-28
Classification: B26D,Y10T

Abstract:
1. A cutting and transport roller for a material web, comprising: media outlet openings for media in a peripheral surface of the roller to which a varying pressure is applied to control a seating pattern of the material web on the roller peripheral surface; a system of pressure feed lines configured to supply the media outlet openings with the media; and separate first and second pressure reservoirs arranged axially end to end and disposed within the roller, each of the pressure reservoirs being (i) a part of the pressure feed line system, (ii) connected by a corresponding valve to at least one part of the media outlet openings, and (iii) arranged such that a principal inertial axis of the first and the second pressure reservoir coincides with an axis of rotation of the roller, with the first pressure reservoir being configured for low pressure media and the second pressure reservoir being configured for high pressure media.