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1. 发明专利

JPS61212411A INTERSTAND EDGER 失效
公开(公告)号：JPS61212411A
公开(公告)日：1986-09-20
申请号：JP5511485
申请日：1985-03-19
申请人： ISHIKAWAJIMA HARIMA HEAVY IND , NIPPON STEEL CORP
发明人： TAZOE NOBUHIRO , KAWAMURA KUNIO , IGARASHI YASUO
IPC分类号： B21B13/06 , B21B31/16
摘要： PURPOSE:To prevent a strip from causing unstable meandering of floating from a rolling line, by moving or slanting the vertical roll of an interstand edger in the longitudinal direction of strip. CONSTITUTION:In an installation for edging a strip 5 by arranging an edger 6, consisting of a pair of vertical rolls 9a, 9b, and a looper roll 7, for providing tension to the strip 5 at the upstream side of edger 6, between mill stands 3, 4 consisting each of work rolls 1 and backup rolls 2; the edger roll 6 is made slantable in the longitudinal direction of strip 5 around spherical seats 11a, 11b by actuating cylinders 12a, 12b, through housings 10a, 10b used for supporting the rolls 9a, 9b, and are also made movable in the same direction by offset cylinders 17a, 17b. When the floating of strip 5 from a rolling line is detected by vertical-movement detectors 14a, 14b, at least one of vertical rolls 9a, 9b is slanted, and when the meandering of strip 5 is produced with its advancing, at least one of them is moved.

2. 发明专利

JPS6310011A STRIP EDGER 失效
公开(公告)号：JPS6310011A
公开(公告)日：1988-01-16
申请号：JP15446886
申请日：1986-07-01
申请人： ISHIKAWAJIMA HARIMA HEAVY IND , NIPPON STEEL CORP
发明人： TAZOE NOBUHIRO , YAMAMOTO TOSHIO , MATOBA SATORU , IGARASHI YASUO
IPC分类号： B21B1/26 , B21B13/06
摘要： PURPOSE:To improve the width accuracy by pressing the top surface of a strip in the vicinity of the gap between edge rolls by a downward pressing roll and installing a strip push up roll to keep a winding angle of the strip large. CONSTITUTION:An adjustment driving device 10 increases a looper angle to raise a looper roll 9 to push up a strip 3 on the upstream side of a downward pressing roll 7. A lifting device 11 raises a strip push up roll 12 to keep a winding angle alpha of the strip 3 toward the roll 7 large. The width accuracy is improved by a device with that composition.

3. 发明专利

JPS62151210A VERTICAL TYPE ROLLING MILL 失效
公开(公告)号：JPS62151210A
公开(公告)日：1987-07-06
申请号：JP29645685
申请日：1985-12-25
申请人： ISHIKAWAJIMA HARIMA HEAVY IND , NIPPON STEEL CORP
发明人： TAZOE NOBUHIRO , SATO KUNICHI , HONJO HISASHI , FUJISHIMA IKUO , KAWAMURA KUNIO , IGARASHI YASUO
IPC分类号： B21B13/06
摘要： PURPOSE:To perform a width rolling reduction with the optimum rolling reduction force, to increase the plate width accuracy and to improve the edge drop by fitting a small diameter cylinder into the large diameter cylinder movable in the width direction of a rolling stock and by selecting the cylinder according to the plate thickness. CONSTITUTION:A vertical roll 4 is moved in the direction apart from the large diameter cylinder chamber 11 which is supported with the stroke adjustably, when a pressure liquid is fed to the anti-vertical roll side inside the large diameter cylinder chamber 11. Now the vertical roll 4 fitted to the supporting part at the tip is advanced at high speed. In case of the rolling stock being a thick one, the rolling reduction is started with its contact with the width end of the rolling stock by advancing as it is. In case of a thin one on the other hand, a large diameter piston 13 is stopped prior to the vertical roll 4 coming into contact with the rolling stock and the rolling reduction with small rolling reduction force and the contact with the rolling stock thereafter is performed by advancing the small diameter piston 13. In this case the vertical roll 4 is inclined by turning the worm wheel 9 which is linked by a key 15 to the outer periphery of the small diameter cylinder chamber 11 by driving a worm 12 by driving the motor in an inclining mechanism 6, in case of the rolling stock having a certain angle for the level.

4. 发明专利

JPS61279302A FINISH ROLLING DEVICE 失效
公开(公告)号：JPS61279302A
公开(公告)日：1986-12-10
申请号：JP12109285
申请日：1985-06-04
申请人： ISHIKAWAJIMA HARIMA HEAVY IND , NIPPON STEEL CORP
发明人： TAZOE NOBUHIRO , SATO KUNICHI , HONJO HISASHI , FUJISHIMA IKUO , OOYA KIYOSHI , IGARASHI YASUO
IPC分类号： B21B1/24
摘要： PURPOSE:To expand the width adjustable range in a thin sheet region and to improve the accuracy of a sheet width and the yield by disposing edgers before and after the rolling stand of one stand before the final rolling stand of a tandem-arranged finish rolling device and adjusting the width. CONSTITUTION:The edgers 1, 2 are disposed before and after the rolling stand S2 of one stand before the final rolling stand S1 of the tandem-arranged finish rolling stand S1-Sn. The dogbones to eliminate edge drops are formed by disposing usually the edger in the inlet part in rolling of a thin sheet to make uniform the width and thickness but the edge drops are generated again during finish rolling. The finished thin sheet 3 has therefore no edge drops if the above- mentioned edgers 1, 2 are disposed. The accuracy of the sheet thickness and width is thus uniformly improved and the yield of the material is improved.

5. 发明专利

JPS6340606A HOT ROLLING METHOD 失效
公开(公告)号：JPS6340606A
公开(公告)日：1988-02-22
申请号：JP18493686
申请日：1986-08-06
申请人： NIPPON STEEL CORP , ISHIKAWAJIMA HARIMA HEAVY IND
发明人： IGARASHI YASUO , KAWAMURA KUNIO , TAZOE NOBUHIRO , HONJO HISASHI
IPC分类号： B21B37/28 , B21B37/00
摘要： PURPOSE:To enable edge dropless control or control to a prescribed amt. of edge drop by positioning the convergent parts of convergent grinding rolls to the ends of a rolled stock and rolling the stock and subjecting the stock to cross reduction under tension with a vertical rolling mill. CONSTITUTION:The sheet thicknesses on the outlet sides of respective stands are determined from the size and steel kind of the rolled stock and the load distribution of the respective stands. The rolling loads of the respective stands are determined from the temps. on the inlet sides of the respective stands, the predicted values of deformation resistance and the sheet thicknesses on the outlet sides of the respective stands, then the face pressures of the respective stands are determined. The amts. A of the edge drops on the outlet sides of the respective stands are determined from the face pressures and the shapes of the single-taper work rolls built into the mill. The amt. A of the edge drop on the outlet side of the final stand is determined in accordance therewith. The corrected amt. C of the edge drop is determined from the resultant amt. A of the edge drop and the target amt. B of the edge drop. The width reduction force of the vertical rolling mill to erase the corrected amt. C of the edge drop from the preliminarily determined cross reduction force and the improved amt. of the edge drop and the cross reduction is executed under the cross reduction force obtd. in the above-mentioned manner.

6. 发明专利

JPS6310017A STRIP EDGER 失效
公开(公告)号：JPS6310017A
公开(公告)日：1988-01-16
申请号：JP15446486
申请日：1986-07-01
申请人： ISHIKAWAJIMA HARIMA HEAVY IND , NIPPON STEEL CORP
发明人： TAZOE NOBUHIRO , HONJO HISASHI , SATO KUNICHI , KAWAMURA KUNIO , IGARASHI YASUO
IPC分类号： B21B1/26 , B21B13/06 , B21B37/00 , B21B37/22
摘要： PURPOSE:To eliminate a defective shape and to shorten the response time in a width rolling reduction by actuating an edger roll at high speed at the width rolling reduction starting time until it is located at the prescribed gap position for the strip end face and advancing it at low speed thereafter. CONSTITUTION:When the width end detecting devices 6, 7 moving together with edger rolls 4, 5 detect the width end of a strip 3 with the advance of the edger rolls 4, 5, change control devices 10, 11 change the motions of rolling reduction cylinders 1, 2 to the low pressure side when the gap between the outer peripheral front face of the edger rolls 4, 5 and end face of the strip 3 becomes L. The edger rolls 4, 5 are thus abutted to the strip 3 end face slowly and the width rolling reduction is thereafter performed by the constant pressure or constant position control. Consequently the responsibility is improved, the rolling reduction of the right and left rolls 4, 5 is always balanced and no defective shape is caused on the strip.

7. 发明专利

JPS6310010A STRIP EDGER 失效
公开(公告)号：JPS6310010A
公开(公告)日：1988-01-16
申请号：JP15446786
申请日：1986-07-01
申请人： ISHIKAWAJIMA HARIMA HEAVY IND , NIPPON STEEL CORP
发明人： TAZOE NOBUHIRO , FUJISHIMA IKUO , KAWAMURA KUNIO , IGARASHI YASUO
IPC分类号： B21B13/06
摘要： PURPOSE:To obtain a high accuracy width by finishing the front and rear ends having a relaxed strip tension by utilizing a biting rigidity at the final stand by installing a mill outlet side close edger positioned near to the outlet side of the final stand of a finish rolling mill. CONSTITUTION:An intermediate edger 7 installed in the downstream of a looper device 3 between rolling stands 1, 2 performs width screwing down of both width ends of a strip 5. A close edger 8 installed in a position near to the final stand 1 projects edger rolls 13 inside the guide face of side guides 10 for performing width screwing down. The width accuracy over the entire strip length is improved by a device with that composition.

8. 发明专利

JPS62267010A CROSS ROLLING METHOD AND CONTROL DEVICE THEREFOR 失效
公开(公告)号：JPS62267010A
公开(公告)日：1987-11-19
申请号：JP11148186
申请日：1986-05-15
申请人： ISHIKAWAJIMA HARIMA HEAVY IND , NIPPON STEEL CORP
发明人： TAZOE NOBUHIRO , HONJO HISASHI , SATO KUNICHI , KAWAMURA KUNIO , IGARASHI YASUO
IPC分类号： B21B37/22 , B21B13/06 , B21B37/00 , B21B37/28 , B21B37/50 , B21B41/10
摘要： PURPOSE:To prevent the buckling of a strip and to maintain always the specified rolling reduction by adjusting the right and left heights of a press roll in accordance with the difference between the right and left tensions generated in the strip. CONSTITUTION:A looper 4, the press roll 9 and vertical rolls 6a, 6b are disposed between rolling mill stands 1 and 1'. A difference between the right and left tensions is detected as a change of load by the load cells 12a, 12b of the looper 4 when said difference is assumed to be generated by the defective shape of the strip 5. The load signal thereof is fed to a calculator 13 from which the tension signal is outputted to a controller 14. The right and left heights of the press roll 9 are then adjusted by servocontrol valves 15a, 15b and cylinders 10a, 10b. The inclination of the strip 5 is, therefore, prevented and the buckling is prevented, by which always the specified rolling reduction is maintained.

9. 发明专利

JPS61279307A METHOD AND CONTROL DEVICE FOR CROSS ROLLING DOWN 失效
公开(公告)号：JPS61279307A
公开(公告)日：1986-12-10
申请号：JP12109185
申请日：1985-06-04
申请人： ISHIKAWAJIMA HARIMA HEAVY IND , NIPPON STEEL CORP
发明人： TAZOE NOBUHIRO , SATO KUNICHI , HONJO HISASHI , FUJISHIMA IKUO , KAWAMURA KUNIO , IGARASHI YASUO
IPC分类号： B21B37/22 , B21B1/22 , B21B13/06 , B21B37/00 , B21B37/50
摘要： PURPOSE:To prevent the buckling and draw-in of a strip material in cross rolling down by the vertical rolling pairs between rolling mills with looper tension application by controlling the reduction with horizontal rolls and reduction with the vertical rolls by the difference in the tension in the transverse direction of the looper. CONSTITUTION:The strip material 8 is given with a prescribed tension by the looper 7 between the horizontal rolls and is cross rolled down by the vertical roll pairs 10a, 10b. The pressures of the load cells 9a, 9b of the looper 7 and the pressure difference are calculated 13 and right and left screw down cylinders 5a, 5b are controlled by a gap controller 14. The right and left cross screw down cylinders 10a, 10b are controlled by a screw down controller 15. The roll gap and the rolling-down position of the vertical rolls of the front stage stand are adjusted and the buckling and draw-in of the material 8 are prevented. The accuracy of the strip width is further improved and the improvement of the edge drops and the formation of the rectangular end faces are made possible.

10. 发明专利

JPS6310018A STRIP EDGER 失效
公开(公告)号：JPS6310018A
公开(公告)日：1988-01-16
申请号：JP15447086
申请日：1986-07-01
申请人： ISHIKAWAJIMA HARIMA HEAVY IND , NIPPON STEEL CORP
发明人： TAZOE NOBUHIRO , SATO KUNICHI , HONJO HISASHI , KAWAMURA KUNIO , IGARASHI YASUO
IPC分类号： B21B1/26 , B21B13/06 , B21B37/00 , B21B37/22
摘要： PURPOSE:To enable a stabilized width rolling reduction without causing a defective shape by individually controlling the rolling reduction cylinder with at least one information among the rolling reduction pressure of the rolling reduction cylinder, the rolling reduction position of an edger roll and the width end shape of the strip after the width rolling reduction. CONSTITUTION:The magnet scales 13, 14 of the piston cylinders 11, 12 of each rolling reduction cylinder 4, 5 are detected and the roll position detectors 15, 16 detecting the position of edger rolls 2, 3 by the stroke of the cylinders 4, 5 are provided. The pressure gages 19, 20 detecting the rolling reduction pressure are provided respectively on the cylinders 4, 5. The shape detecting gages 23, 24 of non-contact type detecting the shape of the width end part of a strip 1 are provided at the downstream side of the edger rolls 2, 3. By the detection signal transmitted from at least one of each detecting gage the right and left cylinders 4, 5 are individually worked, the roll gap of the right and left rolls 2, 3 is separately adjusted and the right and left rolling reduction force is controlled so as to balance at all times.

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