阅读说明：本技术 电磁调控轧辊调控能力综合测试平台及测试方法 (Electromagnetism regulates and controls roll ability of regulation and control comprehensive test platform and test method ) 是由 杜凤山 曲春涛 杨庭松 郑义 许志强 孙静娜 于 2019-08-27 设计创作，主要内容包括：本发明公开了一种电磁调控轧辊调控能力综合测试平台及测试方法,其包括：平台装置整体呈对称分布,张力卷曲机构位于平台两外侧,并配有输送辊机构,输送辊轴承座内设有转速传感器和张力计,与两侧板速度计、板厚仪一同构建板厚AGC闭环控制系统,测试平台中的轧机轧辊为电磁调控轧辊,以外置变频电源为驱动,以高精度位移传感器进行检测、辊型曲线计算装置来实现辊型调控,进而完成电磁调控轧辊辊型曲线的测试与标定。本申请还公开了使用电磁调控轧辊调控能力综合测试平台的测试方法的具体步骤。本发明可实现在线对辊型进行精确调控,为工业化试验扩展了新的研究方法与思路。(The invention discloses a kind of electromagnetism regulation roll ability of regulation and control comprehensive test platform and test methods, comprising: which stage apparatus is integrally symmetric, tension coiled body is located at two outside of platform, and equipped with conveying roller mechanism, it conveys and is equipped with speed probe and tensometer in roll bearing seat, with both side plate speedometer, plate thickness instrument constructs plate thickness AGC closed-loop control system together, rolling mill roll in test platform is that electromagnetism regulates and controls roll, it is driving with external variable-frequency power sources, displacement sensor is detected with high precision, roller curve computing device come realize roll shape regulate and control, and then complete the test and calibration of electromagnetism regulation Roll Shape Curve.Disclosed herein as well is the specific steps for the test method for using electromagnetism regulation roll ability of regulation and control comprehensive test platform.Present invention can be implemented in lines to carry out accuracy controlling to roll shape, extends new research method and thinking for industrial test.)

1. a kind of electromagnetism regulates and controls roll ability of regulation and control comprehensive test platform, it is characterised in that: it includes variable-frequency power sources, tension curling Mechanism, conveying roller mechanism, speed probe, tensometer, plate speedometer, plate thickness instrument, pinch roller, milling train main body, AGC strip thickness control System, PLC tension control system and roller curve computing device；

Electromagnetism regulates and controls roll ability of regulation and control comprehensive test platform and uses bilateral symmetry, and platform two sides distal end is equipped with tension curling Mechanism, the form coordination operation cooperated in mode, for realizing the tension building of plate shape electromagnetism regulation comprehensive test platform；Conveying Roller mechanism is arranged between tension coiled body and milling train main body, and bearing block lower part is equipped with speed probe and tensometer, can Measure real-time conveying roller revolving speed and tension；Plate speedometer is arranged between conveying roller mechanism and milling train main body, real for two sides When plate speed measure；Plate thickness instrument is arranged between plate speedometer and milling train main body, it can be achieved that two sides plate thickness measures, and pinch roller is arranged in Between plate thickness instrument and milling train main body, for adjusting, rolled piece is horizontal and rolling is oriented to；

Milling train main body include at least upper roller high accuracy displacement sensor, topping roll main body, bottom roll main body, in-built electrical bar magnet and under Roller high accuracy displacement sensor, in-built electrical bar magnet are located in the axially extending bore of bottom roll main body or topping roll main body core, institute Stating in-built electrical bar magnet is that electromagnetism regulates and controls bulging source, is connect with the variable-frequency power sources；Topping roll main body highest point and bottom roll main body N upper roller high accuracy displacement sensor and lower roll high accuracy displacement sensor, n are respectively disposed on bus corresponding to minimum point For positive integer；The upper roller high accuracy displacement sensor and lower roll high accuracy displacement sensor all equally linear array cloth It sets, the measured value of the upper roller high accuracy displacement sensor and lower roll high accuracy displacement sensor, through roller curve computing device Calculating derivation obtains the roller curve under flexure；

Plate speedometer, plate thickness instrument, milling train main body and variable-frequency power sources are connected to AGC thickness control system, AGC thickness control system It is connected again with PLC tension control system；AGC thickness control system calculates the roll shape flattened plus bent under collective effect in real time Curve carries out roll gap shape control to milling train main body using drafts, and then controls plate thickness, while according to plate thickness instrument Real-time Feedback Plate thickness information and plate speedometer Real-time Feedback plate speed information, provide electromagnetism adjusted regulation parameter and be sent to frequency conversion Power supply, variable-frequency power sources carry out parameter and reset realization roll shape electromagnetism regulation, assist to adjust roll gap, and then regulate and control template；

PLC tension control system is connected with the AGC thickness control system, completes minute yardstick varied tention using real-time Data Transmission Plate shape closed loop regulatory mechanism is realized in regulation.

2. electromagnetism according to claim 1 regulates and controls roll ability of regulation and control comprehensive test platform, it is characterised in that:

The tension coiled body includes left side tension coiled body and right side tension coiled body, and the conveying roller mechanism includes Left side conveying roller and right side conveying roller, the speed probe include left side speed probe and right side speed probe, tension Meter includes left side tensometer and right side tensometer, and plate speedometer includes left plate speedometer and right side plate speedometer, plate thickness instrument packet It includes left side plate thickness instrument and right side plate thickness instrument, pinch roller includes left side pinch roller and right side pinch roller；

The left side tension coiled body and right side tension coiled body are located at platform two sides；The left side conveying roller is located at Between left side tension coiled body and milling train main body, the bearing block lower part of left side conveying roller is equipped with left side speed probe and left side Tensometer, right side conveying roller are located between right side tension coiled body and milling train main body, and the bearing block lower part of right side conveying roller is set There are right side speed probe and right side tensometer；The left plate speedometer is between left side conveying roller and milling train main body, institute Right side plate speedometer is stated between right side conveying roller and milling train main body；The left side plate thickness instrument is located at left plate speedometer and rolls Between owner's body, right side plate thickness instrument is between right side plate speedometer and milling train main body；Left side pinch roller is located at left side plate thickness instrument Between milling train main body, right side pinch roller is located between right side plate thickness instrument and milling train main body.

3. electromagnetism according to claim 1 regulates and controls roll ability of regulation and control comprehensive test platform, it is characterised in that:

The in-built electrical bar magnet includes upper roller in-built electrical bar magnet and lower roll in-built electrical bar magnet, and upper roller in-built electrical bar magnet is located at topping roll In the axially extending bore of main body core, lower roll in-built electrical bar magnet is located in the axially extending bore of bottom roll main body core.

4. electromagnetism according to claim 1 regulates and controls roll ability of regulation and control comprehensive test platform, it is characterised in that: the upper roller The measured value of high accuracy displacement sensor and lower roll high accuracy displacement sensor, specifically:

The upper roller high accuracy displacement sensor and lower roll high accuracy displacement sensor acquire data, institute all in the form of laser signal The laser point for stating upper roller high accuracy displacement sensor corresponds to the bus of topping roll main body highest point, and the lower roll high precision displacement passes The laser point of sensor corresponds to the bus of bottom roll main body minimum point, and upper roller high accuracy displacement sensor and lower roll high precision displacement pass The displacement data that sensor is acquired in the form of laser signal is exactly their measured value.

5. a kind of method tested using electromagnetism regulation roll ability of regulation and control comprehensive test platform described in claim 1, It is characterized by: itself the following steps are included:

Step 1: according to percentage pass reduction, mill speed, plate thickness, rolled piece material resistance of deformation, calculating and rolled needed for rolling Power processed, two sides tension；And just the roll elastic flattening numerical value of passage, roll deflection value are calculated, initial roll shape is estimated, with leveling roll Seam is target, sets voltage and frequency electromagnetic regulates and controls parameter, determine electromagnetic wand power supply plan；

Step 2: high accuracy displacement sensor, plate thickness instrument, plate speedometer, tension sensor, velocity sensor are balanced clearly Zero, prepare start recording data；And start to carry out electromagnetic wand pre-add Thermal expansion；

Step 3: implementing pressure by initial parameters such as percentage pass reduction, mill speed, plate thicknesss, build and open, observe during this High accuracy displacement sensor whether unusual fluctuation, re-started if unusual fluctuation occurs equipment leveling or initial parameter reset；If without unusual fluctuation And complete to depress, build after start to be rolled；

Step 4: the outlet rolled piece thickness detected according to right side plate thickness instrument, AGC thickness control system are calculated using the prior art The shape for carrying roll gap realizes that electromagnetism regulates and controls the roll shape electromagnetism adjusting function in roll by variable-frequency power sources, to adjust bearing roller Type, and then roll shape compensation is realized until reaching target roll shape, shut out target plate；

Step 5: real-time roll shape being obtained by high accuracy displacement sensor, calculates rolling zone roll shape through roller curve computing device Curve, after reaching target roll shape, variable-frequency power sources enters PID regulatory mechanism, to keep stablizing roll shape；

Step 6: after being rolled, plate thickness instrument Real-time Feedback exports plate thickness information, calculates and obtains via the industrial personal computer that platform carries There is load roll gap shape, and then verifies roll shape electromagnetism ability of regulation and control.

6. the method that electromagnetism regulation roll ability of regulation and control comprehensive test platform according to claim 5 is tested, special Sign is: by the measured value of high accuracy displacement sensor in the step 5, calculating rolling zone through roller curve computing device Roller curve, specific steps are as follows:

(1) generatrix direction corresponding to upper roller highest point and lower roll minimum point, it is high-precision with identical separation delta x laid out in parallel n Displacement sensor is spent, n is positive integer；After completing pressure, high accuracy displacement sensor records the position coordinates y of each measurement point₀, and Balance is reset；

(2) high accuracy displacement sensor obtains the vertical displacement value Δ y of each collection point_i；

(3) after processing, absolute coordinate (m the Δ x, y of corresponding collection point can be obtained₀-Δy_i), wherein y₀It is high-precision when for zero load The position coordinates of the measurement point of displacement sensor record are spent, m is m-th of high accuracy displacement sensor in a column, and Δ x is current The spacing of high accuracy displacement sensor in column, △ y_iThe measurement point of i-th high accuracy displacement sensor record hangs down when to load Straight shift value；

(4) each point coordinate is fitted, to obtain complete roller curve.

Technical field

The present invention relates to machinery field more particularly to a kind of electromagnetism regulation roll ability of regulation and control comprehensive test platform and tests Method.

Background technique

In board rolling especially strip rolling, Strip Shape Control is particularly important.CVC series of rollers, VC series of rollers, DSR The Strip Shape Control means that series of rollers, roll shape electromagnetism regulation roll etc. are preset with roller curve or roller curve is regulated to principle have Have the characteristics that ability of regulation and control is strong, regulatory domain is wide, has become the research emphasis in Strip Shape Control field.And the setting and detection of roll shape Belong to the important link of above-mentioned Strip Shape Control means.At this stage, still to the research and development of the calibration of roll shape and ability of regulation and control test platform There are larger blank.A kind of patent application CN106944485A " device and side for measuring electromagnetism regulation Roll Shape Curve Method and CN109201746A " a kind of the roller shape of the change convexity working roll for Aluminum sheets Strip Shape Control determine method " are proposed respectively To the method for roll crown detection, there is certain exploitativeness, but above-mentioned roll crown detection technique deposits in terms of practicing production There is following problem:

1. the roll crown of offline (zero load) test and calibration is compared to the roll crown after online (carrying), there is some difference, This otherness will affect roll shape regulation；

2. fail the elastic flattening of roll military service and roll deflection being included in test because of offline (zero load), i.e., to rolling The in commission effective roll shape power of test of roller is weak；

3. detection technique is complicated, affected by environment serious, operating has centainly technical, and the scope of application is restricted.

Summary of the invention

It is an object of that present invention to provide a kind of electromagnetism regulation roll ability of regulation and control comprehensive test platform and test methods.This hair The bright roll crown that can regulate and control roll to electromagnetism is tested and is demarcated, electromagnetism regulation roll ability of regulation and control is tested and marked It is fixed, realize that roll shape electromagnetism regulates and controls closed-loop control.A kind of electromagnetism regulation roll ability of regulation and control comprehensive test platform is specifically disclosed, Include: variable-frequency power sources, tension coiled body, conveying roller mechanism, speed probe, tensometer, plate speedometer, plate thickness instrument, pinch Roller, milling train main body, AGC thickness control system, PLC tension control system and roller curve computing device；

Electromagnetism regulates and controls roll ability of regulation and control comprehensive test platform and uses bilateral symmetry, and platform two sides distal end is equipped with tension Coiled body, the form coordination operation cooperated in mode, for realizing the tension building of plate shape electromagnetism regulation comprehensive test platform； For conveying roller arrangement of mechanism between tension coiled body and milling train main body, bearing block lower part is equipped with speed probe and tension Meter, can measure real-time conveying roller revolving speed and tension；Plate speedometer is arranged between conveying roller mechanism and milling train main body, is used for two The real-time plate speed measurement in side；Plate thickness instrument is arranged between plate speedometer and milling train main body, it can be achieved that the measurement of two sides plate thickness, pinch roller cloth It is placed between plate thickness instrument and milling train main body, for adjusting, rolled piece is horizontal and rolling is oriented to；

Milling train main body includes at least upper roller high accuracy displacement sensor, topping roll main body, bottom roll main body, in-built electrical bar magnet With lower roll high accuracy displacement sensor, in-built electrical bar magnet is located at the axially extending bore of bottom roll main body or topping roll main body core Interior, the in-built electrical bar magnet is that electromagnetism regulates and controls bulging source, is connect with the variable-frequency power sources；Topping roll main body highest point and bottom roll N upper roller high accuracy displacement sensor and lower roll high precision displacement sensing are respectively disposed on bus corresponding to main body minimum point Device, n are positive integer；The upper roller high accuracy displacement sensor and lower roll high accuracy displacement sensor all equally linear arrays Arrangement, the measured value of the upper roller high accuracy displacement sensor and lower roll high accuracy displacement sensor are calculated through roller curve and are filled Set calculate derivation obtain flexure under roller curve；

Plate speedometer, plate thickness instrument, milling train main body and variable-frequency power sources are connected to AGC thickness control system, AGC strip thickness control System is connected with PLC tension control system again；AGC thickness control system is calculated in real time under flattening plus flexure collective effect Roller curve carries out roll gap shape control to milling train main body using drafts, and then controls plate thickness, while real-time according to plate thickness instrument The plate thickness information of feedback and the plate speed information of plate speedometer Real-time Feedback provide electromagnetism regulation parameter adjusted and are sent to Variable-frequency power sources, variable-frequency power sources carry out parameter and reset realization roll shape electromagnetism regulation, assist to adjust roll gap, and then regulate and control template；

PLC tension control system is connected with the AGC thickness control system, completes minute yardstick using real-time Data Transmission and becomes Tension regulation, realizes plate shape closed loop regulatory mechanism.

Preferably, the tension coiled body includes left side tension coiled body and right side tension coiled body, described defeated Sending roller mechanism includes left side conveying roller and right side conveying roller, and the speed probe includes left side speed probe and right side revolving speed Sensor, tensometer include left side tensometer and right side tensometer, and plate speedometer includes left plate speedometer and right side plate speed Meter, plate thickness instrument includes left side plate thickness instrument and right side plate thickness instrument, and pinch roller includes left side pinch roller and right side pinch roller；

The left side tension coiled body and right side tension coiled body are located at platform two sides；The left side conveying roller Between left side tension coiled body and milling train main body, the bearing block lower part of left side conveying roller be equipped with left side speed probe and Left side tensometer, right side conveying roller is located between right side tension coiled body and milling train main body, under the bearing block of right side conveying roller Portion is equipped with right side speed probe and right side tensometer；The left plate speedometer be located at left side conveying roller and milling train main body it Between, the right side plate speedometer is between right side conveying roller and milling train main body；The left side plate thickness instrument is located at left plate speed Between meter and milling train main body, right side plate thickness instrument is between right side plate speedometer and milling train main body；Left side pinch roller is located at left side Between plate thickness instrument and milling train main body, right side pinch roller is located between right side plate thickness instrument and milling train main body.

Preferably, the in-built electrical bar magnet includes upper roller in-built electrical bar magnet and lower roll in-built electrical bar magnet, upper roller built-in electromagnetic Stick is located in the axially extending bore of topping roll main body core, and lower roll in-built electrical bar magnet is located at the axially extending bore of bottom roll main body core It is interior.

Preferably, the measured value of the upper roller high accuracy displacement sensor and lower roll high accuracy displacement sensor, specifically: The upper roller high accuracy displacement sensor and lower roll high accuracy displacement sensor acquire data all in the form of laser signal, it is described on The laser point of roller high accuracy displacement sensor corresponds to the bus of topping roll main body highest point, the lower roll high accuracy displacement sensor Laser point correspond to the bus of bottom roll main body minimum point, upper roller high accuracy displacement sensor and lower roll high accuracy displacement sensor The displacement data acquired in the form of laser signal is exactly their measured value.

Also disclose a kind of method tested using electromagnetism regulation roll ability of regulation and control comprehensive test platform comprising Following steps:

Step 1: according to percentage pass reduction, mill speed, plate thickness, rolled piece material resistance of deformation, calculating needed for rolling Roll-force, two sides tension；And just the roll elastic flattening numerical value of passage, roll deflection value are calculated, initial roll shape is estimated, with flat Whole roll gap is target, sets voltage and frequency electromagnetic regulates and controls parameter, determine electromagnetic wand power supply plan；

Step 2: high accuracy displacement sensor, plate thickness instrument, plate speedometer, tension sensor, velocity sensor being carried out flat Weighing apparatus is reset, and prepares start recording data；And start to carry out electromagnetic wand pre-add Thermal expansion；

Step 3: implementing pressure by initial parameters such as percentage pass reduction, mill speed, plate thicknesss, build and open, observe this mistake In journey high accuracy displacement sensor whether unusual fluctuation, re-started if unusual fluctuation occurs equipment leveling or initial parameter reset；If nothing Unusual fluctuation and completing depresses, build after start to be rolled；

Step 4: the outlet rolled piece thickness detected according to right side plate thickness instrument, AGC thickness control system use the prior art The shape for calculating carrying roll gap is realized that electromagnetism regulates and controls the roll shape electromagnetism adjusting function in roll by variable-frequency power sources, is held to adjust Roll shape is carried, and then realizes roll shape compensation until reaching target roll shape, shuts out target plate；

Step 5: real-time roll shape being obtained by high accuracy displacement sensor, calculates rolling zone through roller curve computing device Roller curve, after reaching target roll shape, variable-frequency power sources enters PID regulatory mechanism, to keep stablizing roll shape；

Step 6: after being rolled, plate thickness instrument Real-time Feedback exports plate thickness information, calculates via the industrial personal computer that platform carries Acquisition has load roll gap shape, and then verifies roll shape electromagnetism ability of regulation and control.

Preferably, it calculates and rolls through roller curve computing device by the measured value of high accuracy displacement sensor in step 5 Area's roller curve processed, specific steps are as follows:

(1) generatrix direction corresponding to upper roller highest point and lower roll minimum point, with identical separation delta x laid out in parallel n High accuracy displacement sensor, n are positive integer；After completing pressure, high accuracy displacement sensor records the position coordinates of each measurement point y₀, and balance clearing；

(2) high accuracy displacement sensor obtains the vertical displacement value Δ y of each collection point_i；

(3) after processing, absolute coordinate (m the Δ x, y of corresponding collection point can be obtained₀-Δy_i), wherein y₀When for zero load The position coordinates of the measurement point of high accuracy displacement sensor record, m are m-th of high accuracy displacement sensor in a column, and Δ x is As the spacing of high accuracy displacement sensor in forefront, △ y_iThe measurement point of i-th high accuracy displacement sensor record when to load Vertical displacement value；

(4) each point coordinate is fitted, to obtain complete roller curve.

The beneficial effects of the present invention are:

This test platform can realize on-line measurement, and roll crown survey is carried out when considering elastic flattening and roll deflection situation Examination carries out on-line checking roll crown with automatic closed loop testing mechanism, can intuitively analyze roll crown from rolling workspace To the variation course in body of roll area；Plate speed in the operation of rolling, tension, plate thickness can be detected, and regulated and controled to roll crown And calibration, and then obtain the corresponding relationship between the roll crown and production board shape of electromagnetism regulation roll, it realizes and roll shape is carried out online Accuracy controlling extends new research method and thinking for industrial test.

Detailed description of the invention

Fig. 1 is plane simplified schematic diagram of the invention；

Fig. 2 is that up-down rollers of the invention face letter；

Fig. 3 is milling train main body simplified schematic diagram of the invention；And

Fig. 4 is the milling train main body simplified schematic diagram of single electromagnetic wand.

Description of symbols:

1. variable-frequency power sources, 2. left side tension coiled bodies, 3. left side speed probes,

4. left side tensometer, 5. left side conveying rollers, 6. left plate speedometers,

7. left side plate thickness instrument, 8. left side pinch rollers, 9. milling train main bodys,

9-1. upper roller high accuracy displacement sensor, 9-2. topping roll main body,

9-3. upper roller in-built electrical bar magnet, 9-4. bottom roll main body,

9-5. lower roll in-built electrical bar magnet, 9-6. lower roll high accuracy displacement sensor,

10.AGC thickness control system, 11. right side pinch rollers, 12. right side plate thickness instrument,

13. right side plate speedometer, 14. right side conveying rollers, 15. right side tensometers,

16. right side speed probe, 17. right side tension coiled bodies, 18.PLC tension control system,

19. roller curve computing device.

Specific embodiment

In conjunction with attached drawing and practical situations, a specific embodiment of the invention is further described.

Electromagnetism regulates and controls roll ability of regulation and control comprehensive test platform plane as shown in Figure 1, electromagnetism regulation roll ability of regulation and control is comprehensive It closes test platform and uses bilateral symmetry.

The tension coiled body that platform two sides distal end is equipped with, including left side tension coiled body 2 and right side tension crimping machine Structure 17, the form coordination operation that the two cooperates in mode, for realizing the tension building of plate shape electromagnetism regulation comprehensive test platform.

Conveying roller mechanism includes left side conveying roller 5 and right side conveying roller 14, and conveying roller arrangement of mechanism is in tension coiled body Between milling train main body 9, the bearing block lower part of left side conveying roller 5 and right side conveying roller 14 is designed with speed probe and tension Meter is, it can be achieved that measure real-time conveying roller revolving speed and tension；Specially left side conveying roller 5 is located at 2 He of left side tension coiled body Between milling train main body 9, the bearing block lower part of left side conveying roller 5 is equipped with left side speed probe 3 and left side tensometer 4, and right side is defeated Roller 14 is sent to be located between right side tension coiled body 17 and milling train main body 9, the bearing block lower part of right side conveying roller 14 is equipped with right side Speed probe 16 and right side tensometer 15；Left side speed probe 3 and right side speed probe 16 are respectively used for measuring left side Conveying roller 5 and the real-time revolving speed of right side conveying roller 14, left side tensometer 4 and right side tensometer 15 are respectively used for measuring left side conveying Roller 5 and the real-time tension of right side conveying roller 14.

Plate speedometer is arranged between conveying roller and milling train main body 9, and built-in sensors are in contact with milled sheet band, can Realize the real-time plate speed measurement in two sides, specially left plate speedometer 6 is between left side conveying roller 5 and milling train main body 9, right side plate Speedometer 13 is between right side conveying roller 14 and milling train main body 9.

Plate thickness instrument is arranged between plate speedometer and milling train main body 9, it can be achieved that the measurement of two sides plate thickness, specially left side plate thickness For instrument 7 between left plate speedometer 6 and milling train main body 9, right side plate thickness instrument 12 is located at right side plate speedometer 13 and milling train main body 9 Between.

Pinch roller is arranged between plate thickness instrument and milling train main body, for adjusting rolled piece level and rolling guiding, avoids rolled piece Obstruction；Specially left side pinch roller 8 is located between left side plate thickness instrument 7 and milling train main body 9, and right side pinch roller 11 is located at right side plate thickness Between instrument 12 and milling train main body 9.

The up-down rollers elevational diagrammatic view and Fig. 3 of electromagnetism regulation roll ability of regulation and control comprehensive test platform plane shown in Fig. 2 Shown in electromagnetism regulation roll ability of regulation and control comprehensive test platform plane 9 simplified schematic diagram of milling train main body in, include at least upper roller High accuracy displacement sensor 9-1, topping roll main body 9-2, upper roller in-built electrical bar magnet 9-3, bottom roll main body 9-4, lower roll in-built electrical Bar magnet 9-5 and lower roll high accuracy displacement sensor 9-6.Wherein topping roll main body 9-2 and bottom roll main body 9-4, two rolls are equal Regulate and control roll, i.e., each roll body in-built electrical bar magnet for electromagnetism.Milling train main body 9 is zero crown roller, i.e. plain-barreled roll, is used for plate Shape electromagnetic technique roll bulging performance test.Roll body core has axially extending bore, is equipped with built-in electromagnetic stick in through-hole, It can be used as electromagnetism regulation bulging source, upper roller in-built electrical bar magnet 9-3 be specially equipped in the axially extending bore of topping roll main body 9-2, Lower roll in-built electrical bar magnet 9-5 is equipped in the axially extending bore of bottom roll main body 9-4.Built-in electromagnetism in roll body axially extending bore The external variable-frequency power sources of stick, stick end are equipped with threaded hole, are used for mounting temperature sensor, can be by electromagnetic wand real time temperature through signal wire Variable-frequency power sources 1 is fed back to, relies on temperature control PID system built in variable-frequency power sources 1 to realize electromagnetic wand temperature control, and then facilitate roll shape electromagnetism tune The foundation of control.N high precision displacement sensing is respectively disposed on bus corresponding to topping roll highest point and bottom roll minimum point Device, i.e. n upper roller high accuracy displacement sensor 9-1 and n lower roll high accuracy displacement sensor 9-6.N upper roller high precision displacement Equally arranged in linear arrays between sensor 9-1, also equally line between n lower roll high accuracy displacement sensor 9-6 Property array arrangement, the laser point of upper roller high accuracy displacement sensor 9-1 correspond to the bus of topping roll, and lower roll high precision displacement senses The laser point of device 9-6 corresponds to the bus of bottom roll, for measuring each section roll diameter of roller direction displacement variable, through roller curve The calculating derivation of computing device 19 obtains the roller curve under flexure.Fig. 4 is the milling train main body simplified schematic diagram of single electromagnetic wand, with Fig. 3 Difference be that in the axially extending bore of topping roll main body 9-2, dress is provided without upper roller in-built electrical bar magnet 9-3, only in bottom roll master Lower roll in-built electrical bar magnet 9-5 is equipped in the axially extending bore of body 9-4, i.e., only bottom roll is electromagnetism regulation roll, but ability Technical solution of the present invention still may be implemented in the milling train main body that field technique personnel both know about single electromagnetic wand.

Plate speedometer, plate thickness instrument, milling train main body 9 and variable-frequency power sources 1 are connected to AGC thickness control system 10, AGC plate thickness Control system 10 is connected with PLC tension control system 18 again.Specially left plate speedometer 6, right side plate speedometer 13, left side Plate thickness instrument 7, right side plate thickness instrument 12, the topping roll of milling train main body 9 and bottom roll and variable-frequency power sources 1 all with GC strip thickness control system System 10, AGC thickness control system 10 is connected with PLC tension control system 18 again.In AGC thickness control system, pressure is used Amount carries out roll gap shape control to milling train main body 9, and then controls plate thickness.Meanwhile AGC thickness control system 10 is according to left side plate thickness 13 Real-time Feedback of plate thickness information and left plate speedometer 6 and right side plate speedometer of 12 Real-time Feedback of instrument 7 and right side plate thickness instrument Plate speed information, provide electromagnetism adjusted regulation parameter and be sent to variable-frequency power sources 1, after variable-frequency power sources 1 carries out parameter readjustment It realizes the regulation of roll shape electromagnetism, assists to adjust roll gap, and then regulate and control template.Prior art reality can be used in AGC thickness control system 10 When calculate flatten plus flexure collective effect under roller curve.The basic function of existing AGC system is thickness measuring means to rolling The thickness of process tabularium is detected, and judges the deviation of measured value and setting value；Adjusting is calculated according to the size of deviation Amount issues adjustment signal to executing agency, therefore belongs to current rolling field according to strip measured value calculating roller curve and compare into Ripe technology.

PLC tension control system 18 is connected with AGC thickness control system 10, and the two can carry out real-time Data Transmission, can be with Minute yardstick varied tention is completed using the prior art to regulate and control, and realizes plate shape closed loop regulatory mechanism.

Plate shape electromagnetism performance of control test process of the present invention is as follows:

Step 1: according to percentage pass reduction, mill speed, plate thickness, rolled piece material resistance of deformation, using existing algorithm Roll-force, two sides tension needed for calculating rolling；And just the roll elastic flattening numerical value of passage, roll deflection value are calculated, it estimates Initial roll shape, using smooth roll gap as target, the electromagnetism such as setting voltage, frequency regulate and control parameter, determine electromagnetic wand power supply plan.

Step 2: high accuracy displacement sensor, plate thickness instrument, plate speedometer, tension sensor, velocity sensor being carried out flat Weighing apparatus is reset, and prepares start recording data；And start to carry out electromagnetic wand pre-add Thermal expansion.

Step 3: implementing pressure by initial parameters such as percentage pass reduction, mill speed, plate thicknesss, build and open, observe this mistake In journey high accuracy displacement sensor whether unusual fluctuation, re-started if unusual fluctuation occurs equipment leveling or initial parameter reset.If nothing Unusual fluctuation and completing depresses, build after start to be rolled.

Step 4: the outlet rolled piece thickness detected according to right side plate thickness instrument 12, hydraulic AGC thickness control system use existing skill Art calculates the shape of carrying roll gap automatically, realizes that electromagnetism regulates and controls the roll shape electromagnetism adjusting function in roll by variable-frequency power sources, comes Carrying roll shape is adjusted, realizes roll shape compensation.

Step 5: real-time roll shape being obtained by high accuracy displacement sensor, can be calculated through the calculating of roller curve computing device 19 The calculation method of rolling zone roller curve, the calculating rolling zone roller curve in roller curve computing device 19 uses below step (1)-(4).After reaching target roll shape, variable-frequency power sources enters PID regulatory mechanism, to keep stablizing roll shape.

Roller curve computing device 19 is according to high accuracy displacement sensor counting to roller curve with the following method It calculates:

(1) generatrix direction corresponding to upper roller highest point and lower roll minimum point, with identical separation delta x laid out in parallel n High accuracy displacement sensor.After completing pressure, high accuracy displacement sensor records the position coordinates y of each measurement point₀, and balance clear Zero.

(2) high accuracy displacement sensor acquires displacement data in the form of laser signal, and then obtains the vertical of each collection point Shift value Δ y_i。

(3) after being computed system-computed processing, absolute coordinate (m the Δ x, y of corresponding collection point can be obtained₀-Δy_i), In, y₀The position coordinates of the measurement point of high accuracy displacement sensor record when for zero load, m are m-th of high precision position in a column Displacement sensor, △ Δ x are the spacing when high accuracy displacement sensor in forefront, △ y_iI-th high precision displacement passes when to load The vertical displacement value of the measurement point of sensor record.

(4) each point coordinate is fitted, to obtain complete roller curve.

Step 6: after being rolled, plate thickness instrument 12 Real-time Feedback in right side exports plate thickness information, the industry control carried via platform Machine, which calculates to obtain using the prior art, load roll gap shape, and then verifies roll shape electromagnetism ability of regulation and control.

Finally, it should be noted that above each embodiment is only used to illustrate the technical scheme of the present invention, rather than its limitations； Although the present invention is described in detail referring to the foregoing embodiments, those skilled in the art should understand that: its according to Can so modify to technical solution documented by previous embodiment, or part of or all technical features are carried out etc. With replacement；And these modifications or substitutions, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution Range.