Roller
AssigneeVoith Patent GmbH
InventorsDominik Marusa, José Luiz Campos Souza, Thomas Martin
Life of this patent
Estimating the term…
Abstract
The invention relates to a roller for producing a fibrous web, in particular a paper web including a rotationally symmetrical base body which is rotatable about a longitudinal axis and has a shell surface on which there are arranged at least two elastically deformable and/or deflectable ring-shaped lamellas which extend away from the shell surface in the radial direction and which surround the base body in the circumferential direction, wherein the lamellas are arranged at least in sections at an angle relative to a center plane of the roller aligned perpendicular to the longitudinal axis of the roller, thus forming an angle of inclination.
Claims15
A roller for producing a fibrous web, the roller comprising:
- a rotationally symmetrical base body which is rotatable about a longitudinal axis;
- and
- a shell surface on which there are arranged at least two elastically deformable and/or deflectable ring-shaped or spiral lamellas which extend away from the shell surface in a radial direction, the lamellas surround the base body in a circumferential direction, wherein the lamellas are arranged at least in sections at an angle diagonally relative to a center plane of the roller, the center plane being aligned perpendicular to the longitudinal axis of the roller, thus forming the angle in the form of an angle of inclination, the lamellas being inclined toward the center plane of the roller and are arranged to transversely compress the fibrous web, wherein the angle of inclination of the lamellas varies in an axial direction of the roller, wherein the angle of inclination of the lamellas increases from an edge of the roller towards the center plane, wherein a distance between two adjacent connection points of the lamellas with the shell surface increases in the axial direction towards the center plane of the roller.
A roller arrangement, comprising:
- a first and a second roller each including:
- a rotationally symmetrical base body which is rotatable about a longitudinal axis;
- and
- a shell surface on which there are arranged at least two elastically deformable and/or deflectable ring-shaped or spiral lamellas which extend away from the shell surface in a radial direction, the lamellas surround the base body in a circumferential direction, wherein the lamellas are arranged at least in sections at an angle diagonally relative to a center plane of the roller, the center plane being aligned perpendicular to the longitudinal axis of the roller, thus forming the angle in the form of an angle of inclination, the lamellas being inclined toward the center plane of the roller to transversely compress a fibrous web;
- and
- a mating roll, wherein a distance between each of the rollers and the mating roll is variably adjustable, wherein the first and second rollers are assigned to the mating roll which, together form a nip to receive the fibrous web.
A roller for producing a fibrous web, the roller comprising:
- a rotationally symmetrical base body which is rotatable about a longitudinal axis;
- and
- a shell surface on which there are arranged at least two elastically deformable and/or deflectable ring-shaped or spiral lamellas which extend away from the shell surface in a radial direction, the lamellas surround the base body in a circumferential direction, wherein the lamellas are arranged at least in sections at an angle diagonally relative to a center plane of the roller, the center plane being aligned perpendicular to the longitudinal axis of the roller, thus forming the angle in the form of an angle of inclination, the lamellas being inclined toward the center plane of the roller and are arranged to transversely compress the fibrous web, wherein the angle of inclination of the lamellas varies in an axial direction of the roller, wherein the angle of inclination of each subsequent lamella of the plurality of lamellas increases from a previous lamella in a direction from an edge of the roller to the center plane.
Dependencies are inferred from the claim text.