Patent classifications
B21B38/06
FLEXIBLY ROLLING METAL STRIP MATERIAL
An apparatus for processing metallic strip material comprises a feeder for feeding strip material; a strip drive with at least one controllable traction drive with a carrier and a motor, a drivable traction loop and a press assembly, wherein the power of the motor and the pressing force of the press assembly are variably controllable; a roller assembly for flexible rolling; a measuring device for measuring a physical parameter of a component acting on the strip material; wherein the driving power of the motor is controllable on the basis of the physical parameter measured by the measuring device.
Unknown
A measuring roller for determining a property of a strip-shaped material such as metal strip, passed over a measuring roller, having a measuring roller body with a circumferential surface, at least one recess in the measuring roller body, which is arranged at a distance from the circumferential surface or leads from the circumferential surface into the interior of the measuring roller body, and with a first force sensor arranged in the recess and a second force sensor arranged in the recess or in a further recess adjacent to the recess, wherein the first force sensor has a sensor surface and the first force sensor can generate a sensor signal when the position of the sensor surface of the first force sensor changes, and the second force sensor has a sensor surface and the second force sensor can generate a sensor signal when the position of the sensor surface of the second force sensor changes.
Roll for measuring strip flatness
A flatness-measuring roll for detecting flatness defects of a metal strip extending and moving in a strip-travel direction has a roll body having a cylindrical outer surface and a central axis extending generally perpendicular to the strip-travel direction and about which the body is rotatable. A plurality of measuring bars axially spaced along the body, recessed in the body, and having outer faces flush with the body surface are each at least limitedly radially shiftable relative to the body. The bars are angularly elongated, each extend along a plane substantially perpendicular to the roll axis, and each have a constant width measured parallel to the roll axis over generally all of a respective total angular length. At least two respective force-measuring sensors are braced radially between each of the bars and the roll body.
Rolling apparatus for flat-rolled metal materials
[Object] To provide a rolling apparatus capable of accurately detecting a rolling direction force applied to a work roll chock. [Solution] A rolling apparatus for flat-rolled metal materials including a pair of upper and lower work rolls 1 and 2 includes a pair of work roll chocks 5 and 6 configured to hold the respective work rolls 1 and 2, housings 10 configured to hold the work roll chocks, and rolling direction force measurement devices 21, 22, 23, and 24 configured to measure rolling direction forces. The rolling direction force measurement devices include a plurality of load detection devices on an entry side or an exit side of the work roll chocks in a rolling direction, and the plurality of load detection devices are provided to one of the housings, and the plurality of load detection devices are disposed in a manner that, during rolling of the flat-rolled metal materials, at least two of the load detection devices are arranged adjacent to each other in a draft direction facing a side surface of a corresponding one of the work roll chocks. In this case, the at least two load detection devices are disposed in a manner that a line extending in the rolling direction and including a roll axis, which is a point of effort of a rolling direction force, is interposed between the at least two load detection devices in the draft direction.
Rolling apparatus for flat-rolled metal materials
[Object] To provide a rolling apparatus capable of accurately detecting a rolling direction force applied to a work roll chock. [Solution] A rolling apparatus for flat-rolled metal materials including a pair of upper and lower work rolls 1 and 2 includes a pair of work roll chocks 5 and 6 configured to hold the respective work rolls 1 and 2, housings 10 configured to hold the work roll chocks, and rolling direction force measurement devices 21, 22, 23, and 24 configured to measure rolling direction forces. The rolling direction force measurement devices include a plurality of load detection devices on an entry side or an exit side of the work roll chocks in a rolling direction, and the plurality of load detection devices are provided to one of the housings, and the plurality of load detection devices are disposed in a manner that, during rolling of the flat-rolled metal materials, at least two of the load detection devices are arranged adjacent to each other in a draft direction facing a side surface of a corresponding one of the work roll chocks. In this case, the at least two load detection devices are disposed in a manner that a line extending in the rolling direction and including a roll axis, which is a point of effort of a rolling direction force, is interposed between the at least two load detection devices in the draft direction.
Rolling apparatus for flat-rolled metal materials
[Object] To provide a rolling apparatus capable of accurately detecting a rolling direction force applied to a work roll chock. [Solution] A rolling apparatus for flat-rolled metal materials includes a pair of upper and lower work rolls 1 and 2, and a pair of upper and lower backup rolls 3 and 4. The rolling apparatus includes a pair of work roll chocks 5 and 6 configured to hold the respective work rolls, housings 10 configured to hold the work roll chocks, and load detection devices 21 to 24 provided in the work roll chocks, the load detection devices each detecting a load acting on one of the housings from one of the work roll chocks on an entry side in a rolling direction or on an exit side in the rolling direction. The load detection devices are each disposed so as to face one of the housings using a point of effort of a rolling direction force of one of the work rolls as a reference, such that a rotation moment generated on each of the work roll chocks caused by the rolling direction force is equal to a counter rotation moment generated by counterforce against the rotation moment.
Rolling apparatus for flat-rolled metal materials
[Object] To provide a rolling apparatus capable of accurately detecting a rolling direction force applied to a work roll chock. [Solution] A rolling apparatus for flat-rolled metal materials includes a pair of upper and lower work rolls 1 and 2, and a pair of upper and lower backup rolls 3 and 4. The rolling apparatus includes a pair of work roll chocks 5 and 6 configured to hold the respective work rolls, housings 10 configured to hold the work roll chocks, and load detection devices 21 to 24 provided in the work roll chocks, the load detection devices each detecting a load acting on one of the housings from one of the work roll chocks on an entry side in a rolling direction or on an exit side in the rolling direction. The load detection devices are each disposed so as to face one of the housings using a point of effort of a rolling direction force of one of the work rolls as a reference, such that a rotation moment generated on each of the work roll chocks caused by the rolling direction force is equal to a counter rotation moment generated by counterforce against the rotation moment.
Force Measuring Device for Measuring Web Tensions of a Running Material Web
The present invention relates to a force measuring device (20) for measuring web tensions of a running material web (10) that comprises a longitudinal direction defined by the running direction, and a transverse direction, the force measuring device (20) comprising an axle (22) and, supported on the axle, a measuring roll (30) wrapped around by the material web. Here, according to the present invention, it is provided that the measuring roll is formed as a segmented measuring roll (30) having two or more measuring segments (32) that are slidable separately on the axle (22) and are lockable in a measuring position on the axle in order to position the measuring segments (32) in the transverse direction of the material web (10) in accordance with desired measuring positions such that longitudinal sections (12) of the material web wrap around one measuring segment (32) each. The measuring segments (32) each comprise a load cell (36) that serves to determine the web tension of the longitudinal section (12) of the material web wrapped around the respective measuring segment (32) and that provides a mount with which the measuring segment (32) sits on the axle (22). The axle (22) is furnished with electrical conductors that extend substantially in the axial direction across the entire width (26), that are contactable at every position axially and with which the measuring signals provided by the load cells (36) of the measuring segments (22) are conductible to an evaluation unit arranged at an axle end (28).
Abnormality detection device
An object of the invention is to provide an abnormality detection device that can detect a processing abnormality of various types of software. The abnormality detection device according to the invention divides an output data series which is output by software into one or more clusters, determines that the output data included in any cluster is normal, and determines that the output data not included in any cluster is abnormal.
Robust band tension control
A metal band is first rolled in a front and then in a rear (downstream) roll stand of a multi-stand rolling train. A looper between the roll stands may detect a band tension in the metal band. The band tension is supplied to a first and a second tension controller to determine an application additional target value and a speed additional target value. The second tension controller may only determine a value less than or greater than 0, as the speed additional target value, if the band tension is above or below an upper or lower band tension limit. Otherwise, the speed additional target value may be 0. The first tension controller is also supplied with a target tension that falls between the band tension limits. The application additional target value may be used to act on the rear roll stand.