Device and method for lateral guidance of a rolled strip transported on a roller bed

Patent metadata

Field	Value
Publication number	US-9266156-B2
Application number	US-200913126629-A
Country	US
Kind code	B2
Filing date	Oct 27, 2009
Priority date	Oct 28, 2008
Publication date	Feb 23, 2016
Grant date	Feb 23, 2016

Abstract

The invention relates to a device for lateral guidance of a rolled strip transported on a roller bed, particularly a hot rolled strip in front of a winding device ( 3 ), having parallel first and second side guides provided on both sides of the rolled strip, said side guides being movable toward or away from one another by adjusting means that are adjustable independently of one another; the invention is characterized in that a control device ( 14, 15, 16 ), to which operating forces and/or positions of the side guides and/or of the rolled strip can be fed as output values in the guidance of the rolled strip, is provided for damping the periodic deviation of the rolled strip, and in that the control device ( 14, 15, 16 ) controls the positions of the side guides and/or forces that the side guides exert on the rolled strip based on the measured output values.

First claim

The invention claimed is:

1. A device for laterally guiding a rolled strip transported on a roller table in front of a coiling device, comprising: parallel first and second lateral guides provided on both sides of the rolled strip, the lateral guides being moveable toward each other or away from each other; independently adjustable adjusting means for moving the lateral guides; and a regulating device for damping periodic shifting of the rolled strip, the regulating device being supplied with input values, the input values representing forces acting during guidance of the rolled strip and positions of the lateral guides and/or the rolled strip, the regulating device being operative to regulate based on measured input values of positions of the lateral guides and forces the lateral guides exert on the rolled strip, wherein the regulating device includes a regulator which is operative to produce respective distance signals for the two lateral guides from the forces which the two lateral guides exert on the roll strip, wherein a force difference (F SAS −F SBS ) obtained from forces acting on the two lateral guides is supplied to the regulating device, which determines a differential position value from the force difference, wherein the regulating device further includes a first and a second position regulator arranged following the regulator for the two sides of the roll strip, wherein a sum of the differential position value produced by the regulator and a difference between the desired position value and the actual position value of the first lateral guide is supplied to the first position regulator, and a difference of the differential position value produced by the regulator and a difference between the desired position value and the actual position value of the second lateral guide is supplied to the second position regulator, whereby individual control of the adjusting means on both sides of the rolled strip is provided.

2. The device according to claim 1 , wherein forces exerted on the roll strip by adjustment of a driver and/or positions of the adjustments of the driver to the roll strip are supplied to the regulating device as input values.

3. The device according to claim 1 , wherein a measured strip center position of the rolled strip and/or a measured differential tension of the roll strip is/are supplied to the regulating device as input values.

4. The device according to claim 1 , wherein the adjusting means includes hydraulic cylinders for actuating the lateral guides.

5. The device according to claim 4 , wherein the first and second position regulators each produce desired valve values for the hydraulic cylinders for actuating the lateral guides.

6. A method for laterally guiding a rolled strip transported on a roller table in front of a reeling device, comprising the steps of: providing parallel first and second lateral guides on both sides of the roll strip; moving the lateral guides toward each other or away from each other with independently adjustable adjusting means; damping periodic shifting of the rolled strip with a regulating device; supplying to the regulating device as input values forces acting during guidance of the rolled strip and positions of the lateral guides and/or of the rolled strip; and, based on the measured input values, regulating with the regulating device the positions of the lateral guides and/or forces the lateral guides exert on the roll strip, wherein the regulating step includes producing respective distance signals for the two lateral guides from the forces which the two lateral guides exert on the roll strip, obtaining a force difference (F SAS −F SBS ) from forces acting on the two lateral guides and supplying the force difference to the regulating device, determining a differential position value in the regulating device from the force difference, wherein the regulating device further includes a first and a second position regulator arranged following the regulator for the two sides of the roll strip, further including supplying a sum of the differential position value produced by the regulator and a difference between the desired position value and the actual position value of the first lateral guide to the first position regulator, and supplying a difference of the differential position value produced by the regulator and a difference between the desired position value and the actual position value of the second lateral guide is supplied to the second position regulator, whereby individual control of the adjusting means on both sides of the rolled strip is provided.

Assignees

• Jepsen Olaf Norman
• Sudau Peter
• Mengel Christian
• Sms Group Gmbh

Inventors

• Jepsen Olaf Norman
• Sudau Peter
• Mengel Christian

Classifications

• B21B37/68 Primary

  Camber or steering control for strip, sheets or plates, e.g. preventing meandering · CPC title

• B21B2273/04

  Lateral deviation, meandering, camber of product · CPC title

• B21C47/34

  Feeding or guiding devices not specially adapted to a particular type of apparatus · CPC title

• B21B39/14

  Guiding, positioning or aligning work (B21B43/12 takes precedence; guides in which work is subjected to permanent internal twisting B21B15/02) · CPC title

• B21C47/3416

  with lateral edge contact · CPC title