| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 072800100 | Including plural sensors or sensor responsive to comparison between plural conditions | 36 |
| 20100064748 | ROLLING MILL APPARATUS AND METHOD OF SHAPE CONTROL OF ROLLED STRIP AND PLATE - This invention relates to a rolling mill apparatus and a method of shape control of a rolled strip which enables satisfactory shape control even in extremely thin rolling. A rolling mill apparatus of this invention has a rolling mill, which rolls a rolled strip P between upper and lower work rolls; a shape detecting portion, which detects the degree of flatness of the rolled strip in the width direction of rolled strip which has been rolled by the rolling mill; a spray portion, having a plurality of spray nozzles arranged along the length direction of the upper and lower work rolls, which sprays the upper and lower work rolls with coolant C; and, a shape control portion, which adjusts the spray amount and/or temperature of the coolant C sprayed from the spray portion based on detected information from the shape detecting portion, to control the shape of the rolled strip P. The shape control portion has two control modes, in which the relationship of the detected information of the shape detecting portion and the spray amount and/or temperature of the coolant C sprayed from the spray portion are inversely proportional, and switches between these two control modes based on the strip thickness of the rolled strip P. | 03-18-2010 |
| 072800300 | Sensing work or product (e.g., by X-ray) | 22 |
| 20100281937 | MACHINE FOR CONTINUOUSLY BENDING AN ELONGATED WORKPIECE AT PREDETERMINED RADII - A machine for continuously bending an elongated workpiece at predetermined radii, machine that uses a series of driving rollers ( | 11-11-2010 |
| 20110011143 | OPERATING METHOD FOR A COLD-ROLLING LINE TRAIN WITH IMPROVED DYNAMICS - In a multi-staged cold-rolling line, a strip is rolled. An actual rolling force of a last rolling stage of the cold-rolling line is detected and fed to a force control unit which determines a control parameter using the actual rolling force and a target rolling force and outputs a control parameter. An actual thickness is detected directly downstream of the last rolling stage and is sent to a thickness control unit which acts on the last rolling stage. Another actual strip thickness is detected directly upstream of the last rolling stage. Enter and exit speeds of the last rolling stage are detected and with a pre-determined final strip thickness following the last rolling stage fed to a setpoint determination unit which determines a target thickness which is used as a setpoint for another thickness control unitacting on the next to last rolling stage and receiving the other actual thickness value. | 01-20-2011 |
| 20130133388 | METHODS AND APPARATUS FOR MONITORING AND CONDITIONING STRIP MATERIAL - Methods and apparatus for monitoring and conditioning strip material are disclosed. A disclosed example apparatus includes a plurality of sensors located along a width of a moving material. Each of the plurality of sensors corresponds to a respective one of a plurality of longitudinal zones located along a width of the moving material. The apparatus also includes a material condition monitor configured to determine the condition of the moving material, and a feedback unit coupled to the material condition monitor and configured to be coupled to a plurality of different types of material conditioners. The feedback unit is configured to map each of the plurality of sensors to at least a respective one of a plurality of adjustable backup bearings based on being coupled to any one of the material conditioners. | 05-30-2013 |
| 20180021825 | DESCALING SYSTEM, CONTROL DEVICE OF THE DESCALING SYSTEM, AND METHOD FOR CONTROLLING THE DESCALING SYSTEM | 01-25-2018 |
| 072800400 | Work and product | 1 |
| 20150027185 | APPARATUS FOR STRAIGHTENING METAL STRIP - An apparatus for straightening metal strips, including a first, upper group and a second, lower group of straightening rollers arranged in each case immediately in succession in a strip running direction, and a group of individually controllable actuators arranged alongside one another in a transverse direction. An axial bending profile of at least a first of the straightening rollers is settable by the group of actuators. At least one second group of individually controllable actuators arranged alongside one another in the transverse direction is provided. An axial bending profile of the least a second of the straightening rollers, which is in particular different from the bending profile of the first bending roller, is settable by the second group of actuators. | 01-29-2015 |
| 072800500 | Sensing temperature | 2 |
| 20110100080 | Method for Cooling a Hot Strip Wound to a Hot Strip Bundle, a Device for Cooling a Hot Strip, a Control and/or a Regulation Device and Metal Strip - In a method for cooling a hot strip wound to a hot strip bundle, a device for cooling a hot strip bundle, a control and/or regulating device, and a metal strip, the hot strip bundle ( | 05-05-2011 |
| 20130014553 | MANUFACTURING APPARATUS AND MANUFACTURING METHOD OF HOT-ROLLED STEEL SHEET - Provided is a manufacturing apparatus and manufacturing method of hot-rolled steel sheet which enables uniform cooling of a rolled material and improvement of the surface properties thereof. The manufacturing apparatus comprises: a rolling stand; a supplying device capable of supplying lubricant to work rolls and/or backup rolls; an online roll grinding device; and a removing device capable of removing at least part of the lubricant before the surface of the work rolls is ground by the grinding device. The manufacturing method comprises the steps of: removing at least part of the lubricant adhered to the work rolls, or to the work rolls and backup rolls using the lubricant removing device after completing rolling of a preceding material; grinding the work rolls using the online roll grinding device after the removing step; and supplying the lubricant to the work rolls and/or backup rolls from the lubricant supplying device. | 01-17-2013 |
| 072800600 | Sensing slack or tension (e.g., by use of dancer) | 3 |
| 20080302153 | Plastic working method and plastic working system - A plurality of press devices | 12-11-2008 |
| 20100083720 | METHOD AND DEVICE FOR WINDING METAL STRIPS ONTO A COILING MANDREL - The invention relates to a method and a device for winding metal strips ( | 04-08-2010 |
| 20160016215 | PROCESS DAMPING OF SELF-EXCITED THIRD OCTAVE MILL VIBRATION - Control of self-excited third octave vibration in a metal rolling mill can be achieved by adjusting the tension of the metal strip as it enters a stand. Self-excited third octave vibration can be detected and/or measured by one or more sensors. A high-speed tension adjustor can rapidly adjust the entry tension of the metal strip (e.g., as the metal strip enters a mill stand) to compensate for the detected self-excited third octave vibration. High-speed tension adjustors can include any combination of hydraulic or piezoelectric actuators coupled to the center roll of a bridle roll to rapidly raise or lower the roll and thus induce rapid tension adjustments in the strip. Other high-speed tension adjustors can be used. | 01-21-2016 |
| 072800900 | Sensing cross sectional dimension | 12 |
| 20110005285 | ROLLING MILL AND ROLLING METHOD - The present invention relates to the providing of a rolling mill that makes it possible to more accurately control the shape of a plate material than has hitherto been possible, and to a rolling method, and is a rolling mill that rolls a plate material using vertical work rolls, and that includes: a coolant jet spray unit that has a plurality of nozzles that are arranged at predetermined intervals in the direction of the rotation axis of the work rolls, and that sprays jets of coolant from the respective nozzles onto the work rolls; a roll temperature estimation unit that estimates a mean temperature of the work rolls; a coolant temperature detection unit that detects a temperature of the coolant; a shape detection unit that detects the shape in the width direction of the rolled plate material; a shape deviation calculation unit that calculates an amount of deviation between a plate material shape detected by the shape detection unit and a target shape; and a shape control unit that controls the shape of the plate material by controlling the spray quantity and/or temperature of the coolant which is sprayed from the coolant jet spray unit based on a difference between the mean temperature of the work rolls and the temperature of the coolant, and on the amount of deviation between the plate material shape and the target shape. | 01-13-2011 |
| 20160375476 | SPIRAL FORMING - Spiral forming methods can be used to join edges of a rolled material along a spiral joint to form conical and/or cylindrical structures. Alignment of the edges of the rolled material can be controlled in a wrapping direction as the material is being joined along the spiral joint to form the structure. By controlling alignment of the edges of the material as the edges of the material are being joined, small corrections can be made over the course of forming the structure facilitating control over geometric tolerances of the resulting spiral formed structure. | 12-29-2016 |
| 072900100 | Sensing flatness (e.g., crown) | 3 |
| 20090249849 | REGULATING FLATNESS OF A METAL STRIP AT THE OUTPUT OF A ROLL HOUSING - A method regulating flatness of a metal strip at a roll housing output including at least one dynamic flatness actuator. A rolling process characterizes flatness of the strip by measuring a quantity D in n points distributed across the strip width, from n measurements of the quantity D. Then, using an action model of flatness regulation and an optimizing method, an overall setpoint including at least one elementary setpoint is determined for the dynamic actuator, such that a calculated flatness residual defect criterion is minimal, and executing the overall setpoint. The action model on the flatness used for determining the overall setpoint includes, for the dynamic actuator, as many submodels as there are points for measuring the quantity D characteristic of flatness, each submodel enabling the effect of the dynamic actuator on the quantity D to be calculated at the corresponding point when a setpoint is applied thereto. | 10-08-2009 |
| 20100101291 | METHOD AND LUBRICANT APPLICATION DEVICE FOR REGULATING THE PLANARITY AND/OR ROUGHNESS OF A METAL STRIP - A method and a lubricant application device for regulating the flatness and/or roughness of a metal strip in the outlet of a cold rolling stand by suitable metering of the amount of at least one lubricant per unit time applied to the metal strip in the inlet of the cold rolling stand. The applied amount of lubricant is metered in the form of a quantitative distribution over the width of the metal strip per unit time according to a detected control deviation between an actual and a desired flatness distribution over the width of the metal strip in the outlet of the cold rolling stand or a control deviation between an actual and a desired roughness distribution over the width of the metal strip in the outlet of the cold rolling stand or a combination of the two control deviations. | 04-29-2010 |
| 20100236310 | EDGE FLATNESS MONITORING - A metallic strip edge flatness monitoring system for a rolling mill has one or more thermal imaging devices ( | 09-23-2010 |
| 072900200 | Sensing thickness | 7 |
| 20090139290 | METHOD AND PLANT FOR INTEGRATED MONITORING AND CONTROL OF STRIP FLATNESS AND STRIP PROFILE - Apparatus and method of controlling strip geometry in casting strip having a rolling mill. A target thickness profile is calculated as a function of the measured entry thickness profile of the strip while satisfying profile and flatness parameters. A differential strain feedback from longitudinal strain in the strip is calculated by a control system by comparing the exit thickness profile with the target thickness profile, and a control signal is generated to control a device capable of affecting the geometry of the strip processed by the hot rolling mill. A feed-forward control reference and/or sensitivity vector may also be calculated as a function of the target thickness profile, and used in generating the control signal sent to the control device. The control device may be selected from one or more of the group consisting of a bending controller, gap controller and coolant controller. | 06-04-2009 |
| 20090277241 | Method and device for controlling a roll gap - The invention relates to a method and a device for controlling a roll gap when rolling a strip ( | 11-12-2009 |
| 20100050721 | THICKNESS CONTROL APPARATUS OF REVERSING ROLLING MILL - A thickness control apparatus of a reversing rolling mill has an entry thickness gauge that measures the thickness of the material to be rolled, and entry material speed detector that is detects the speed of the material to be rolled. Measured thickness measured by the entry thickness gauge is tracked on the basis of the speed of the material to be rolled detected by the entry material speed detector. A mill delivery thickness calculator calculates thickness on the delivery side of the reversing rolling mill on the basis of the thickness on the entry side and the roll gap detected. | 03-04-2010 |
| 20100229612 | Method for operating a mill train, in particular in a cold rolling mill - One embodiment of the present invention discloses a method for operating a mill train, in particular used in a cold-rolling mill. The mill train includes operating rolls with a roll gap disposed in-between through which a rolled strip is guided. With the method of at least one embodiment, the thickness and the roll-in speed of the rolled strip are measured in front of the roll gap. The roll-out speed of the rolled strip after the roll gap is reconstructed with the aid of the tangential speed of the operating rolls. The thickness after the roll gap is then determined with the aid of the thickness and the roll-in speed in front of the roll gap and the reconstructed roll-out speed. | 09-16-2010 |
| 20150336145 | APPARATUS TO DETECT THE DEFORMITY IN THICKNESS OF TUBULAR ELEMENTS AND CORRESPONDING METHOD - Apparatus to detect a deformity in thickness of a tubular element. The apparatus comprises a plurality of sensors and is installed in at least a rolling stand, having at least three rolling rings, of a rolling train able to obtain said tubular element. | 11-26-2015 |
| 072900400 | Sensor utilizes radiation to detect thickness (e.g., by X-ray) | 2 |
| 20110174033 | ELONGATION ROLLING CONTROL METHOD - An elongation rolling control method is provided which can manufacture a hollow shell of high dimensional accuracy and can suppress rolling problems. It is an elongation rolling control method in which the groove bottom wall thickness of a hollow shell P in stand # | 07-21-2011 |
| 20110174034 | ELONGATION ROLLING CONTROL METHOD - An elongation rolling control method is provided which can manufacture a hollow shell of high dimensional accuracy and can suppress rolling problems. It is an elongation rolling control method in which the groove bottom wall thickness of a hollow shell P in stand # | 07-21-2011 |
| 072100100 | Sensing tool or tool-linked part | 13 |
| 20080245120 | Elongation rolling control method - An elongation rolling control method is provided which can manufacture a hollow shell of high dimensional accuracy and can suppress rolling problems. It is an elongation rolling control method in which the groove bottom wall thickness of a hollow shell P in stand # | 10-09-2008 |
| 20090235706 | Method For Rolling A Sheet Metal Strip - A method is provided for controlling cold rolling of a sheet metal strip involving continuously passing the strip in at least two successive rolling stands, each stand including at least two driven rolls between which the strip moves and is plated. The method includes estimating the sliding variation in output of one rolling stand; and correcting the rotation speed of the rolls of at least one corrected rolling stand based on the estimated sliding variation. | 09-24-2009 |
| 072100200 | Sensing torque | 3 |
| 20100058823 | METHOD FOR LEVELLING A FLAT PRODUCT IN STRIP OR SHEET FORM IN A LEVELLING MACHINE WITH INTERMESHED ROLLS AND LEVELLING INSTALLATION THEREFORE - The invention concerns a method and a device for controlling the overlapping of levelling rollers in a planishing machine comprising two levelling trains each bearing a series of rollers ( | 03-11-2010 |
| 20100206033 | DRIVING DEVICE OF MOTORS FOR ROLLING ROLLS - A driving device driving motors of rolling rolls that corrects asymmetry between top and bottom roll driving systems of a twin-drive rolling mill in which top and bottom rolling rolls are driven by upper and lower motors, respectively, so that torques propagate to the top and bottom rolling rolls simultaneously. To this end, an upper/lower axis system imbalance correction section that corrects inequalities of torques propagating to the top and bottom rolling rolls is provided in either one or both of an upper motor control section that controls the upper motor and a lower motor control section that controls the lower motor in a driving device of motors for rolling rolls used in a rolling mill. The top and bottom rolling rolls are driven by the upper motor and the lower motor, respectively, and one of the upper motor and the lower motor is located on a rolled material. Thus, torques propagate to the top and bottom rolling rolls simultaneously. | 08-19-2010 |
| 20150040631 | METHODS TO DRIVE MATERIAL CONDITIONING MACHINES - Methods to drive material conditioning machines are described. An example method includes determining a first torque of a first roller of a material conditioning machine through which the strip material moves, calculating a second torque of a second roller of the material conditioning machine based on a relationship between the second torque and the first torque, and maintaining the relationship between the second torque and the first torque by adjusting the second torque after a change in the first torque. | 02-12-2015 |
| 072100300 | Sensing roll rotation (e.g., speed or distance) | 1 |
| 20150367391 | COLD ROLLED MATERIAL MANUFACTURING EQUIPMENT AND COLD ROLLING METHOD - Cold rolled material manufacturing equipment comprises: an unwinding device for unwinding a hot rolled coil after acid pickling; joining means, disposed on the exit side of the unwinding device, for joining the tail end of a preceding coil to the leading end of a succeeding coil unwound from the unwinding device; a rolling mill for continuously rolling the coils in one direction; a strip storage device, disposed between the joining means and the rolling mill, for storing a strip to perform continuous rolling during the joining; a strip cutting device for cutting the strip to a desired length; a winding device for winding the rolled coil; transport means for transporting the coil to the unwinding device so that the coil is rolled a plurality of times; and a rolling speed control device for controlling a rolling speed during the joining to a lower speed than a steady rolling speed. | 12-24-2015 |
| 072100400 | Sensing force | 3 |
| 20130000371 | ROLLING MILL AND METHOD OF ZERO ADJUSTMENT OF ROLLING MILL - The present invention discovers that a rolling direction force occurs even with conventional adjustment by the kiss roll state, pinpoints that the rolling direction force does not affect the roll thrust force, and thereby enables more precise initial roll gap position adjustment of a rolling mill (rolling zero adjustment). | 01-03-2013 |
| 072100600 | By sensing hydraulic pressure applied to roll | 2 |
| 20090165517 | Rolling Plant - A hot-rolling plant ( | 07-02-2009 |
| 20170232491 | HYDRAULIC SCREW-DOWN DEVICE USED IN SMALL-SIZE ROLLING MILL OR ROLL PRESS MACHINE AND HYDRAULIC CONTROL METHOD USING THE SAME | 08-17-2017 |
| 072100700 | Sensing roll gap | 4 |
| 20090031776 | Method and Device for Controlling a Rolled Product Thickness at a Tandem Rolling Mill Exit - A method and device for controlling the final thickness of a rolled product at a tandem rolling mill exit which make it possible to remove the cyclic defects of the product thickness variation. The method includes using at least one rolling stand provided with hydraulic adjustment devices located on the tandem rolling mill exit and in compensating the cyclic defects of the product thickness variation generated upstream through the entire rolling mill on the stand with the aid of an adjuster (R) coordinated with the frequency of defects. The method and device are suitable for tandem cold rolling mills producing metal strips. The thickness defects are detectable by a thickness sensor. | 02-05-2009 |
| 20090031777 | Method for thickness regulation during a hot-rolling process - A flooring system comprises a preformed composite panel having a first sheet ( | 02-05-2009 |
| 20140150508 | MEASURING DEVICE, ROLL STAND AND METHOD OF DETECTING THE HEIGHT OF A ROLL GAP - The invention relates to a measuring device, a roll stand and a method for detecting the height of a roll gap between two working rolls in the roll stand. In order to ensure a high level of measurement accuracy of the roll gap transmitter even in the case of horizontal displacement of the working rolls in or against the rolling direction it is proposed in accordance with the invention to carry out adjusting the movement of the roll gap transmitter ( | 06-05-2014 |
| 20140216121 | ROLLING MILL, AND DEVICE AND METHOD FOR DETERMINING THE ROLLING OR GUIDING GAP OF THE ROLL STANDS OR GUIDE STANDS IN A MULTI-STAND ROLLING MILL - A method for determining the rolling or guiding gap of the roll stands or guide stands in a multi-stand rolling mill positions a comparison scale at at least one stand, preferably at the first and the last stand, and subsequently the rolling or guiding gap of the respective stand is determined. In this method, a camera is arranged at one of the input or output sides and a transmitter for a reference device, a reference transducer and/or a reference scale is arranged at the other of the input or output sides before the comparison scale is positioned, such that adjustment operations at the camera can subsequently be avoided. | 08-07-2014 |
