Abstract: A method for adjusting a component, in particular a functional roller, for a machine for producing or processing a fibrous web, is carried out on a component having at least one adjustment device for adjusting an operating state of the component. An image capture and/or video capture of the exterior of the component is carried out and the capture is transmitted to a computing unit. An actual value of the operating state is determined by the computing unit by image analysis of the image capture and/or video capture of the exterior of the component and/or by the acquisition of values from an embedded sensor system. On the basis of the determined actual values of the operating state, metainformation regarding the adjustment of the adjustment device is presented by overlay with the image capture and/or video capture on a display.

Abstract: A method and a suitable device determine the contamination of a suction roller of a machine for producing a fibrous web, in particular a paper, cardboard, tissue or pulp web. The method includes the steps of: a. flowing a fluid through a measurement area of a roller shell, wherein either the pressure or the throughflow speed of the fluid is kept constant; b. determining a characteristic variable, wherein the characteristic variable includes the resulting throughflow speed in the case of a throughflow at a constant pressure and of the resulting pressure drop in the case of the measurement at a constant throughflow speed; c. providing one or more reference variables; and d. determining a degree of contamination of the suction roller by way of comparison of the characteristic variable with the reference variable or variables.

Abstract: A method and an apparatus for adjusting a suction roll. The method includes: recording images and/or videos of the exterior of the roll and transmitting the recording to a computing unit; determining the actual values of the position of the sealing strips and/or edge deckles and/or other, non-visible components by the computing unit through image analysis of the image and/or video recording of the exterior of the roll and/or by acquiring values from an embedded sensor system; and displaying the determined actual values by superimposing the position of the non-visible components on a display with the image and/or video recording.

Abstract: A sealing strip and a sealing device for sealing a negative-pressure zone of a suction roller for a machine for producing or processing a fibrous web, such as a paper, board or tissue machine. The stealing strip has an upper face, which forms a sealing surface of the sealing strip, and the sealing strip includes a sensor unit, which has a first temperature sensor at a first distance from the sealing surface and a second temperature sensor at a second distance from the sealing surface. The first distance is smaller than the second distance. The sealing strip is formed of a base material and a protective material which is different from the base material, and the sensor unit is embedded, in particular cast, into the protective material.

Abstract: A method and a suitable device determine the contamination of a suction roller of a machine for producing a fibrous web, in particular a paper, cardboard, tissue or pulp web. The method includes the steps of: a. flowing a fluid through a measurement area of a roller shell, wherein either the pressure or the throughflow speed of the fluid is kept constant; b. determining a characteristic variable, wherein the characteristic variable includes the resulting throughflow speed in the case of a throughflow at a constant pressure and of the resulting pressure drop in the case of the measurement at a constant throughflow speed; c. providing one or more reference variables; and d. determining a degree of contamination of the suction roller by way of comparison of the characteristic variable with the reference variable or variables.

Abstract: A sealing device for sealing a positive or negative pressure zone of a roll for a machine for producing or processing a fibrous web includes a sealing strip and a lubricating device for introducing a lubricant between an inner surface of a roll shell and a sealing surface of the sealing strip when used as intended. The lubricating device includes a plurality of lubricant outlet openings and can be connected to a supply line for supplying lubricant. The lubricating device can be connected to the supply line through a plurality of inlets which are distributed over the length of the sealing strip. The sealing strip has a first and a second longitudinal-side end and the distance from at least one longitudinal-side end, preferably both longitudinal-side ends, to an inlet is at most 800 mm. A roll and a method for operating a roll are also provided.

Abstract: A sealing strip for sealing a suction zone of a suctioned roll of a machine for producing and/or processing a fibrous web has wear volume, which is gradually worn away by tribological contact with the roll. The sealing strip system further includes a sensor system for detecting the state of wear of the sealing strip, and an evaluation unit. The sensor system is embedded in a sensor channel extending within the sealing strip in the longitudinal direction at the wear volume across substantially the entire length of a sealing surface of strip, and is connectable to the evaluation unit and/or to a unit for supplying the sensor system with a medium for generating information via a connection provided on the lower side of the sealing strip, and leading out of the strip on the side of the wear volume facing away from the sealing surface.

Abstract: A roll for a machine for producing or processing a fibrous web includes a movable roll shell, a positive or negative pressure zone which is disposed within the roll shell and is rotationally fixed relative to the roll shell, and a sealing device for sealing the positive or negative pressure zone from the surroundings. The sealing device has a sealing strip and a lubricating device with which a lubricant can be introduced between the inner surface of the roll shell and the sealing surface of the sealing strip. The lubricating device includes a plurality of lubricant outlet openings and is connected to a supply line for supplying lubricant through a plurality of inlet segments. The supply line includes an inner section which runs within the roll shell, the inner section having a storage volume of at least 490 cm3/m. A method for operating a roll is also provided.

Abstract: A sealing device for sealing a positive or negative pressure zone of a roll for a machine for producing or processing a fibrous web includes a sealing strip and a lubricating device for introducing a lubricant between an inner surface of a roll shell and a sealing surface of the sealing strip when used as intended. The lubricating device includes a plurality of lubricant outlet openings and can be connected to a supply line for supplying lubricant. The lubricating device can be connected to the supply line through a plurality of inlets which are distributed over the length of the sealing strip. The sealing strip has a first and a second longitudinal-side end and the distance from at least one longitudinal-side end, preferably both longitudinal-side ends, to an inlet is at most 800 mm. A roll and a method for operating a roll are also provided.

Abstract: A sealing strip for sealing a suction zone of a suctioned roll of a machine for producing and/or processing a fibrous web has wear volume, which is gradually worn away by tribological contact with the roll. The sealing strip system further includes a sensor system for detecting the state of wear of the sealing strip, and an evaluation unit. The sensor system is embedded in a sensor channel extending within the sealing strip in the longitudinal direction at the wear volume across substantially the entire length of a sealing surface of strip, and is connectable to the evaluation unit and/or to a unit for supplying the sensor system with a medium for generating information via a connection provided on the lower side of the sealing strip, and leading out of the strip on the side of the wear volume facing away from the sealing surface.

Abstract: A sealing device seals a pressure or vacuum zone of a roller having a roller sleeve which is movable in relation to the sealing device. The sealing device has a sealing strip with an upper side forming a sealing face and a lubricant channel adjoining the sealing face and is formed by at least one groove-type depression in the sealing strip, which extends in the longitudinal direction of the sealing strip. When the sealing device is installed, the sealing face and the opening of the groove-type depression face toward the inner side of the roller sleeve. The lubricant channel is hooked up to a supply line which at least in portions runs within the sealing strip and delivers lubricant between the inner side of the roller sleeve and the sealing face. The sealing strip, at each of its two ends, has a wall delimiting the lubricant channel in its length.

Abstract: A sealing device seals a pressure or vacuum zone of a roller having a roller sleeve which is movable in relation to the sealing device. The sealing device has a sealing strip with an upper side forming a sealing face and a lubricant channel adjoining the sealing face and is formed by at least one groove-type depression in the sealing strip, which extends in the longitudinal direction of the sealing strip. When the sealing device is installed, the sealing face and the opening of the groove-type depression face toward the inner side of the roller sleeve. The lubricant channel is hooked up to a supply line which at least in portions runs within the sealing strip and delivers lubricant between the inner side of the roller sleeve and the sealing face. The sealing strip, at each of its two ends, has a wall delimiting the lubricant channel in its length.

Abstract: A spreader roll has a stationary shaft mounted at both ends and running in a curve. A roll shell is supported on the shaft. The construction is simplified in that said roll shell is rotatably mounted, is formed of a flexible material and is supported on the shaft via a lubricating fluid film.

Abstract: A sealing strip for a positive or negative pressure zone of a suction or blower roller of a machine for processing and/or producing web material, in particular a paper, cardboard or tissue machine. The sealing strip has a sealing face to be set against and in frictional contact with the inner side of a roller shell for sealing the positive or negative pressure zone during a rotational movement of the roller shell. The sealing strip has a lubricant channel in the form of a cutout from the sealing strip. The lubricant channel is arranged in front of the sealing face. The sealing strip is formed with a first material section at the sealing face and with a second material section at the front wall. The first and second materials are different in at least one physical property, such as modulus of elasticity, abrasion resistance, hardness, brittleness.

Abstract: A sealing device seals a pressure or vacuum zone of a roller having a roller sleeve which is movable in relation to the sealing device. The sealing device has a sealing strip with an upper side forming a sealing face and a lubricant channel adjoining the sealing face and is formed by at least one groove-type depression in the sealing strip, which extends in the longitudinal direction of the sealing strip. When the sealing device is installed, the sealing face and the opening of the groove-type depression face toward the inner side of the roller sleeve. The lubricant channel is hooked up to a supply line which at least in portions runs within the sealing strip and delivers lubricant between the inner side of the roller sleeve and the sealing face. The sealing strip, at each of its two ends, has a wall delimiting the lubricant channel in its length.

Abstract: A sealing device seals a pressure or vacuum zone of a roller having a roller sleeve which is movable in relation to the sealing device. The sealing device has a sealing strip with an upper side forming a sealing face and a lubricant channel adjoining the sealing face and is formed by at least one groove-type depression in the sealing strip, which extends in the longitudinal direction of the sealing strip. When the sealing device is installed, the sealing face and the opening of the groove-type depression face toward the inner side of the roller sleeve. The lubricant channel is hooked up to a supply line which at least in portions runs within the sealing strip and delivers lubricant between the inner side of the roller sleeve and the sealing face. The sealing strip, at each of its two ends, has a wall delimiting the lubricant channel in its length.

Abstract: A roller has a movable roller sleeve and a positive-pressure or negative-pressure zone inside the roller sleeve. The zone is sealed outwardly by a sealing installation with at least one sealing strip. The sealing strip in the radial direction of the roller is movable from the roller toward the inner side and away therefrom and the sealing strip has a lubricant outlet opening connected to a supply line for delivering lubricant to between the inner side of the roller sleeve and the sealing face. The supply line includes one part running within the sealing strip and one part running outside the sealing strip but within the roller. The part of the supply line within the roller, on its length which is routed outside the sealing strip, includes a first portion that is longer than a second line portion. The second line portion is more flexural than the first line portion.

Abstract: A spreader roll has a stationary shaft mounted at both ends and running in a curve. A roll shell is supported on the shaft. The construction is simplified in that said roll shell is rotatably mounted, is formed of a flexible material and is supported on the shaft via a lubricating fluid film.

Abstract: A sealing-strip system has a sealing strip for sealing a suction zone of a suctioned roller in a machine for manufacturing and/or processing a fibrous web. The sealing strip has a wear volume which is successively removed by tribological contact with the roller, and a wear-indication unit which is formed by at least one tube which is configured in or on the sealing strip and which is at least in part disposed on or in the sealing strip in the region of the wear volume.

Abstract: A sealing strip for a positive or negative pressure zone of a suction or blower roller of a machine for processing and/or producing web material, in particular a paper, cardboard or tissue machine. The sealing strip has a sealing face to be set against and in frictional contact with the inner side of a roller shell for sealing the positive or negative pressure zone during a rotational movement of the roller shell. The sealing strip has a lubricant channel in the form of a cutout from the sealing strip. The lubricant channel is arranged in front of the sealing face. The sealing strip is formed with a first material section at the sealing face and with a second material section at the front wall. The first and second materials are different in at least one physical property, such as modulus of elasticity, abrasion resistance, hardness, brittleness.