Device in connection with reel-up of a web
AssigneeMetso Paper, Inc.
InventorsPekka Ruha, Jarkko Räty
Life of this patent
Estimating the term…
Abstract
A device for use in a reel-up of a paper web, the reel-up including a reeling cylinder mounted on bearings to guide a web on to a reeling axle. The device includes an actuator and a control member for setting and controlling the distance between the reeling cylinder and the reeling axle. The device further includes an actuator and a control member for effectuating and maintaining a force effect between the reeling cylinder and the reeling axle.
Claims15
A reel-up for a web comprising:
- a reeling means (C) mounted on a first bearing arrangement (7, 8) to guide a web (W) traveling in the reel-up on to a reeling axle (T1),
- a reeling axle (T1) mounted on a second bearing arrangement (7, 8) in the-reel-up to reel the web (W) around the reeling axle (T1), said reeling axle (T1) arranged to rotate around a direction transverse to the web (W),
- first control means (1, 3) for setting and controlling a distance between the reeling means (C) and the reeling axle (T1),
- second control means (1, 5) for effecting and maintaining a force effect (F1) between the reeling means (C) and the reeling axle (T1),
- the second control means (1, 5) comprising an elastic element(E) that stores energy, to effect and maintain the force effect (F1), in which element (E) a change in a dimension (D) is proportional to a change in the force effect (F1), and
- sensor means (6) which are arranged to measure said dimension (D).
The reel-up according to claim l, wherein the reel-up further comprises:
- a control system (4) connected to the sensor means (6) to guide the first and the second control means (1, 3, 5, E).
A method for arranging a reel-up of a web comprising the steps:
- mounting a reeling means (C) on a first bearing arrangement (7, 8) in the reel-up to guide a web (W) traveling in the reel-up on to a reeling axle (T1),
- mounting a reeling axle (T1) on a second bearing arrangement (7, 8) in the reel-up to reel the web (W) around the reeling axle (T1), which reeling axle (T1) is arranged to rotate around a direction transverse to the web (W),
- effecting and maintaining a force effect (F1) between the reeling means (C) and the reeling axle (T1) at least partly by means of an elastic element (E) that stores energy, in which element (E) a change in the dimension (D) is proportional to a change in the force effect (F1), and
- monitoring said dimension (D) to control the force effect (F1).
A reel-up for a web comprising:
- reeling means (C) mounted on a first set of bearings (7) for guiding a web (W) traveling through said reel-up;
- a reeling axle (T1) structured and arranged for receiving said web (W) from said reeling means, said reeling axle (T1) being mounted on a second set of bearings (8) for reeling said web (W) therearound, wherein said reeling axle (T1) is structured and arranged to rotate in a direction transverse to a direction of movement of said web (W) though said reel-up;
- first control means (1, 3) structured and arranged for setting and controlling a distance between said reeling means (C) and said reeling axle (T1);
- second control means (1, 5) structured and arranged for effecting and maintaining a nip load between said reeling means (C) and said reeling axle (T1);
- wherein said second control means (1, 5) comprises
- an elastic element (E) for storing energy, wherein said elastic element (E) is responsive to said nip load, wherein a change in a length (D) of said elastic element (E) is proportional to a change in said nip load;
- and
- sensor means (6) adapted to measure variations in said length (D) of said elastic element (E).
Dependencies are inferred from the claim text.