Roller frame
AssigneeReifenhauser GmbH & Co. Maschinenfabrik
InventorsHelmut Meyer, Andreas Böhm
Life of this patent
Estimating the term…
Abstract
A roller frame including at least two rollers mounted in a housing between which a nip can be formed. The ends of the rollers are supported in rotary fashion in bearings and at least one of the rollers is embodied as an advancing roller and has an adjusting system by which it is possible to move the bearings of the advancing roller, thus changing the nip. The adjusting system has a rack and a pinion whose teeth engage with those of the rack and can be driven to rotate by a motor. It is possible to change the distance between the pinion and the rack by changing the tooth engagement depth between them.
Claims20
A roller frame (1), including at least two rollers (2, 3) mounted in a housing (16), between which a nip (4) is formed, ends of the rollers (2, 3) supported in a rotary fashion in bearings (5, 6, 7, 8) and at least one of the rollers (2, 3) being an advancing roller and having an adjusting system (9) by which it is possible to move the bearings (5, 6) of the advancing roller, thus changing the nip (4), the adjusting system (9) comprising a rack (10) and a pinion (11) with pinion teeth engaging with rack teeth of the rack and driveable to rotate by a motor (12), and changing a distance between the pinion (11) and the rack (10) by changing a tooth engagement depth between them, wherein the distance between the pinion (11) and the rack (10) is changed by a cam mechanism acting on the pinion (11).
A roller frame (1), including at least two rollers (2, 3) mounted in a housing (16), between which a nip (4) is formed, ends of the rollers (2, 3) supported in a rotary fashion in bearings (5, 6, 7, 8) and at least one of the rollers (2, 3) being an advancing roller and having an adjusting system (9) by which it is possible to move the bearings (5, 6) of the advancing roller, thus changing the nip (4), the adjusting system (9) comprising a rack (10) and a pinion (11) with pinion teeth engaging with rack teeth of the rack and driveable to rotate by a motor (12), and changing a distance between the pinion (11) and the rack (10) by changing a tooth engagement depth between them, wherein the pinion (11) and the motor (12) are mounted on the housing (16) with the interposition of a replaceable spacer plate (120) and a thickness of the spacer plate (120) defines a distance between the pinion (11) and the rack (10).
A roller frame (1), including at least two rollers (2, 3) mounted in a housing (16), between which a nip (4) is formed, ends of the rollers (2, 3) supported in a rotary fashion in bearings (5, 6, 7, 8) and at least one of the rollers (2, 3) being an advancing roller and having an adjusting system (9) by which it is possible to move the bearings (5, 6) of the advancing roller, thus changing the nip (4), the adjusting system (9) comprising a rack (10) and a pinion (11) with pinion teeth engaging with rack teeth of the rack and driveable to rotate by a motor (12), and changing a distance between the pinion (11) and the rack (10) by changing a tooth engagement depth between them, wherein the distance between the pinion (11) and the rack (10) is releasably fixable.
Dependencies are inferred from the claim text.