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81. 发明专利

JPS60141303A METHOD AND INSTALLATION FOR CONTINUOUS ROLLING 失效
公开(公告)号：JPS60141303A
公开(公告)日：1985-07-26
申请号：JP24762683
申请日：1983-12-29
申请人： ISHIKAWAJIMA HARIMA HEAVY IND
发明人： WATANABE HAJIME , KIZAKI KIYOSHI , KATOU HEIJI , NITANDA MASAO
IPC分类号： B21B1/22 , B21B1/24 , B21B1/26 , B21B37/00
摘要： PURPOSE:To save the energy required for rolling by dividing plural rolling mills into three stages to perform a high draft rolling till a prescribed thickness, an adjustment to a final target crown at the middle stage, and a finish rolling to a desired cross-sectional shape at the rear stage. CONSTITUTION:Tandem mills F1-F7 are divided into the mills F1-F3 at the front stage, the mills F4, F5 at the middle stage, and the mills F6, F7 at the rear stage. Both work rolls 1, 2 of the mills at the front stage A, having large diameters, are driven to roll a rolling material W under a high draft and a large rolling reduction. Further, the rolls 1, 2 are provided with a crown control to roll the material W into a prescribed thickness. The work rolls 9 of the mills B at the middle stage, smaller in diameter than the rolls 7, perform the high draft rolling within a prescribed temperature range; the work rolls 15 of the mills C at the rear stage, having further smaller diameters, adjust the shape of material W to a final cross-sectional shape by using intermediate rolls 19, to improve the dimensional accuracy of material W as well as to save the energy required for rolling.

82. 发明专利

JPS6082206A MULTISTAGE ROLLING MILL 失效
公开(公告)号：JPS6082206A
公开(公告)日：1985-05-10
申请号：JP18960583
申请日：1983-10-11
申请人： ISHIKAWAJIMA HARIMA HEAVY IND
发明人： WATANABE HAJIME , KATOU HEIJI , KIZAKI KIYOSHI , NITANDA MASAO , ISHII HIKONORI
IPC分类号： B21B31/16 , B21B13/02 , B21B13/14
摘要： PURPOSE:To diversify the power to control shape by parting axially an intermediate roll, making the parted rolls respectively inclinable with the axial line of work rolls and horizontally movable in the direction orthogonal with said axial line and acting bending force in the direction perpendicular to both ends of the work rolls. CONSTITUTION:Upper and lower backup rolls 13, 14 are respectively disposed to upper and lower work rolls 11, 12 and an intermediate roll 15 is interposed between the upper work roll 11 and the backup roll 13 in press contact therewith. The roll 15 is parted axially at the center to two symmetrical split rolls 15a, 15b which are made freely adjustable in angles alpha1, alpha2 of inclination at a parting point S. Said roll is made horizontally movable in the directions A, B orthogonal with the axial line L of the upper work roll 11. A means for acting perpendicular bending force in the arrow C direction to both ends of the work rolls 11, 12 is provided. The control with a large degree of freedom is thus made possible.

83. 发明专利

JPS6082204A MULTISTAGE ROLLING MILL 失效
公开(公告)号：JPS6082204A
公开(公告)日：1985-05-10
申请号：JP18960383
申请日：1983-10-11
申请人： ISHIKAWAJIMA HARIMA HEAVY IND
发明人： KATOU HEIJI , WATANABE HAJIME , KIZAKI KIYOSHI , NITANDA MASAO , ISHII HIKONORI
IPC分类号： B21B31/16 , B21B13/02 , B21B13/14
摘要： PURPOSE:To provide diversified capacity to control plate thickness by parting axially an intermediate roll of a multistage rolling mill to divide the roll to plural split rolls and making the split rolls inclinable with the axial line of work rolls. CONSTITUTION:Work rolls 11, 12 are disposed above and below and backup rolls 13, 14 are respectively disposed to the work rolls 11, 12. An intermediate roll 15 is interposed between the upper work roll 11 and the upper backup roll 13. The roll 15 is divided axially to two symmetrical split rolls 15a and 15b at the center and is made freely bendable at the parting point S to permit free adjustment of the angles alpha1, alpha2 of inclination. Said roll is also made horizontally movable in the directions A, B intersecting orthogonally with the axial line L of the roll 11. The roll 15 is thus changed to various forms and the diversified control is made possible.

84. 发明专利

JPS5886907A ROLLING MILL 失效
公开(公告)号：JPS5886907A
公开(公告)日：1983-05-24
申请号：JP18596781
申请日：1981-11-19
申请人： ISHIKAWAJIMA HARIMA HEAVY IND
发明人： SATOU KAZUYUKI , KIZAKI KIYOSHI , BABA SEIZOU
IPC分类号： B21B1/22 , B21B13/02 , B21B13/14 , B21B29/00
摘要： PURPOSE:To improve the shape controlling capacity of a rolling mill and to facilitate changing from an existing rolling mill by making an intermediate roll which is interposed between a small diameter roll of dissimilar diameter work rolls and a backup roll bendable in a horizontal direction. CONSTITUTION:A lower work roll 4 is driven at a high speed and an upper work roll 3 of a smaller diameter at a low speed by means of respective driving motors. To perform controlling of a shape, horizontal bending force (ST) is applied to a horizontal bending roll 6 according to need to curve an intermediate roll 5 in a horizontal direction and to force the same into between the upper backup roll 1 and the roll 3. Thus the shape of the rolled material is controlled by applying bending to the roll 3 in the above-mentioned way.

85. 发明专利

JPH0985341A METHOD AND DEVICE FOR SEPARATELY CONTROLLING ELONGATION OF TENSION LEVELER 失效
公开(公告)号：JPH0985341A
公开(公告)日：1997-03-31
申请号：JP24268495
申请日：1995-09-21
申请人： ISHIKAWAJIMA HARIMA HEAVY IND , NIPPON KOKAN KK
发明人： SATOU MASAYOSHI , KIZAKI KIYOSHI , SATO KAZUYUKI , HONJO HISASHI , MIKAMI MASAO , KUCHI MASAHIRO , TOMITA SHOGO
IPC分类号： B21B37/00 , B21B37/48 , B21B37/56 , B21D1/05
摘要： PROBLEM TO BE SOLVED: To provide the method and device for separately controlling the elongation of a tension leveler capable of reducing the whole line by estimating the intermediate tension of a skin pass mill and the tension leveler. SOLUTION: Laser Doppler meters 11a, 11b, 11c to measure the skin pass mill inlet side velocity V0, the skin pass mill outlet side velocity V1, and the inlet side velocity V2 of an outlet side bridle roll, deflector rolls 13a, 13b to measure the skin pass mill inlet side tension T0, and the inlet side tension T2 of the outlet side bridle roll, and a control device 20 to control the mill elongation percentage εM, the tension T2, the leveler elongation εL, and the intermediate tension T1 are provided. The mill elongation and the leveler elongation percentage are calculated from the differential velocity by the control device, the intermediate tension T1 is estimated from the leveler elongation, the intermesh quantity I.M and the tension T2, and the mill roll rotational speed is changed to control the intermediate tension to the prescribed value.

86. 发明专利

JPH08108202A ROLLING MILL 失效
公开(公告)号：JPH08108202A
公开(公告)日：1996-04-30
申请号：JP24392894
申请日：1994-10-07
申请人： ISHIKAWAJIMA HARIMA HEAVY IND , NIPPON KOKAN KK
发明人： KOIKE MASAAKI , KIZAKI KIYOSHI , KUCHI MASAHIRO , KATAOKA HISAAKI , HOSOYA SHIGEFUMI
IPC分类号： B21B29/00 , B21B13/14 , B21B31/20
摘要： PURPOSE: To suppress the play of a journal box in the horizontal direction and to enable stable rolling operation by providing a cylinder for pressing the side face of the journal box of work roll and a cylinder for pressing a projecting part at the level of the axial center of work roll. CONSTITUTION: The 1st cylinder 18 for pressing the journal box 10 of work roll and the 2nd cylinder 19 for pressing the projecting part 14 are horizontally provided at the level of the axial center of a work roll 2 on a supporting member 15 integrated with the journal box of an intermediate roll 11 provided between the projecting part 14 of a housing 13 and the journal box 10 of work roll. When the rods of the 1st cylinder 18 and 2nd cylinder are extended, the play between the journal box 10 of work roll and a supporting member 15 and play between the supporting member 15 and the projecting part 14 are suppressed and the movements in the horizontal direction of the journal box 10 of work roll and journal box 11 of intermediate roll are restrained. In this way, the position of the work roll 2 is stabilized, unbalanced load to the journal box 10 of work roll is prevented and stable rolling operation is executed.

87. 发明专利

JPH06226314A DEVICE FOR CHANGING ROLL OF ROLLING MILL 失效
公开(公告)号：JPH06226314A
公开(公告)日：1994-08-16
申请号：JP1575093
申请日：1993-02-02
申请人： ISHIKAWAJIMA HARIMA HEAVY IND , NIPPON KOKAN KK
发明人： TONOBE TAKEHIKO , KIZAKI KIYOSHI , KOIKE MASAAKI , KATAOKA HISAAKI , HIRABAYASHI SATORU
IPC分类号： B21B31/10
摘要： PURPOSE:To unnecessiate devices for inserting upper rails into a mill stand, fixing and detaching by providing movable supporting-wheel guide rails with which the upper ends of push-up bars are projected above lower journal boxes by engaging horizontal parts to supporting wheels and which are situated so as to guide the traverse motion of the supporting wheels. CONSTITUTION:At the time of changing rolls, the upper ends of the push-up bars 14 are fit into fitting holes 39 provided on the bottom of upper journal boxes 4 by moving the supporting-wheel guide rails 18, engaging their horizontal parts to the supporting wheels 15 and projecting the upper ends of the push-up bars 14 above the lower journal boxes 5. Then, when only the lower journal boxes are traversed so as to draw them out of the rolling mill in this state, lower wheels 12 and the supporting wheels 15 are respectively guided with lower wheel guide rails 17 and the supporting-wheel guide rails 18 and traversed, and the upper journal boxes 4 and lower journal boxes 5 are integrally taken out as the former is supported above the latter.

88. 发明专利

JPS62197208A METHOD AND DEVICE FOR FORMING AND CONTROLLING EDGE OF METAL PLATE 失效
公开(公告)号：JPS62197208A
公开(公告)日：1987-08-31
申请号：JP3945086
申请日：1986-02-25
申请人： ISHIKAWAJIMA HARIMA HEAVY IND
发明人： IWANAMI NORIO , KIZAKI KIYOSHI
IPC分类号： B21B1/22 , B21B13/08 , B21B37/22 , B21B37/28
摘要： PURPOSE:To obtain high quality rolled stocks having rectangular shape edge surfaces without meanders by detecting a pressing force in the plate width direction of a right and a left edger roll forming edges positioned right under a screw-down device of a rolling mil and controlling a right and a left rolling screwdown force to make a right and a left pressing force equal. CONSTITUTION:Both edges of a rolled stock 3 bitten and extended to the full roll width by shift of work rolls 1 and 2 are pressed by edger rolls in the rolling direction positioned right under the work rolls 1 and 2 and edge surfaces 23 are formed into a rectangular shape. A right and a left pressing force P1 and P2 are detected by a pressing force adjusting device 9 through a pressing force detector 25. A difference DELTAP between the pressing forces P1 and P2 is obtained by a proportional arithmetic element 26 and a screwdown adjusting device controls a right and a left screwdown device so as to make the DELTAP zero. In this method, meanders of the stock 3 are eliminated and the stock 3 has a good rectangular edge surfaces 23 with the highly accurate plate width.

89. 发明专利

JPS62166004A MULTI-STAGE ROLLING MILL 失效
公开(公告)号：JPS62166004A
公开(公告)日：1987-07-22
申请号：JP727786
申请日：1986-01-17
申请人： ISHIKAWAJIMA HARIMA HEAVY IND
发明人： KIZAKI KIYOSHI , IWANAMI NORIO
IPC分类号： B21B13/14
摘要： PURPOSE:To control the shape of work rolls with good accuracy by supporting the work rolls to a pyramid shape with two pieces of intermediate rolls backed up by back up rolls and shifting and bending the intermediate rolls. CONSTITUTION:The upper intermediate rolls 2, 3 are provided on the lower side of the large-diameter upper back up roll 1 and the small-diameter work rolls 4 are attracted and supported in the pyramid shape by means of springs 5 to the lower side thereof. The upper divided back up rolls 7, 8 are provided on the upper and down stream sides of the rolls 2, 3. Double push horizontal benders 9, 10 are provided to the rolls 7, 8. The lower side is constituted in the same manner. Vertical bending cylinders are provided to the rolls 2, 3 to control the vertical bending and shifters are provided thereto to shift the rolls 2, 3 in opposite directions. The fluctuation in the horizontal deflection of the small-diameter work rolls 4, 4' is prevented by the above-mentioned mechanism and therefore, the diameter of the rolls 4, 4' is made extremely small.

90. 发明专利

JPS62148002A MULTI-STAGE ROLLING MILL 失效
公开(公告)号：JPS62148002A
公开(公告)日：1987-07-02
申请号：JP28896385
申请日：1985-12-20
申请人： ISHIKAWAJIMA HARIMA HEAVY IND
发明人： KIZAKI KIYOSHI , IWANAMI NORIO
IPC分类号： B21B13/14
摘要： PURPOSE:To provide high transverse rigidity and high shape controllability to a titled mill by pushing small-diameter work rolls at both ends by divided backup rolls having positioning and bending means via support rolls thereby supporting the work rolls. CONSTITUTION:Upper intermediate rolls 2 are provided right under the large- diameter upper backup rolls 1 and small-diameter chockless upper work rolls 3 are attracted and supported to the lower side thereof by springs 4. The upper divided backup rolls 8, 9 are provided via the upper support rolls 6, 7 to the upper and down stream sides of the pass line 5 of the rolls 2. A horizontal bending jack 10 is provided to one of the rolls 8, 9 and a horizontal bending cylinder 11 is provided to the other. The backup rolls are thus pushed at both ends and are positioned by horizontal bending. The rolls in the lower stage are similarly constituted. Vertical bending cylinders 22, 23 are provided to the upper and lower intermediate rolls 2, 13 to make bending control. The rolls 2, 13 are simultaneously shifted in the opposite directions by providing shifting devices.

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