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1. 发明专利

JPS62124010A METHOD AND DEVICE FOR CONTROLLING ROLLING IN ONE-STAND-MULTIPASS ROLLING MILL 失效
公开(公告)号：JPS62124010A
公开(公告)日：1987-06-05
申请号：JP26462185
申请日：1985-11-25
申请人： ISHIKAWAJIMA HARIMA HEAVY IND , NIPPON STEEL CORP , TOSHIBA CORP
发明人： KUWANO HIROAKI , SHIRAISHI TOSHIYUKI , YAMAMOTO HIROYASU , KOYAMA TOSHIHIRO
IPC分类号： B21B31/20 , B21B1/22 , B21B13/00 , B21B37/00 , B21B37/58
摘要： PURPOSE:To restrain offgages only near to welding zone of a rolled stock by temporarily opening a gap between work rolls so as to reduce variations in a load of the work rolls caused by welding zones when the welding zones of the rolled stock pass through the gap. CONSTITUTION:A one-stand-multipass rolling mill rolls a rolled stock S having welded joint parts P continuously through respective gaps G1, G2, and G3 between work rolls R1, R2, R3, and R4. A computing element 4 obtains the timing at which a joint part P passes through gaps G1... based on a distance L between the rolling mill and a joint detector 5, a moving speed V of the stock S by a speed detector 6, and the detected timing of the joint part P by the detector 5. A control system A adjusts the position of corresponding rolls R1... and opens gaps G1... temporarily in accordance with the passing timing of the joint part P obtained by the computing element 4. In this method, offgages are restrained only near to joint parts of the rolled stock, so that a yield is improved.

2. 发明专利

JPS61199506A ROLLING MILL 失效
公开(公告)号：JPS61199506A
公开(公告)日：1986-09-04
申请号：JP3934585
申请日：1985-02-28
申请人： ISHIKAWAJIMA HARIMA HEAVY IND , NIPPON STEEL CORP , TOSHIBA CORP
发明人： KUWANO HIROAKI , IURA TERUO , OKUDAIRA KEN , KATO TOSHIHIKO
IPC分类号： B21B13/00 , B21B1/22 , B21B13/14 , B21B38/10
摘要： PURPOSE:To detect extremely accurately roll gaps and to set well-balanced roll gaps by incorporating position detectors in load-loading devices provided respectively to the work roll chocks of a rolling mill. CONSTITUTION:A position detector 10 constituted of a pair of a position detecting bar 13 and a position detecting head 14, is provided to the inside of each of hydraulic balancing cylinders 9a, 9b provided to each roll chock 8 of multiple work rolls 1-4. The average value of outputs Ca, Cb of electric signals, outputted in accordance with the displacements of the heads 14 of bars 13 of respective cylinders 9a, 9b, is transmitted to a treating unit to detect accurately a roll gap. Hydraulic pressures of hydraulic balancing cylinders 9a, 9b adjusted based on the detected values, to keep the gaps of multiple work rolls in well balance.

3. 发明专利

JPS62156011A METHOD AND APPARATUS FOR DETECTING SHEET TENSION IN SINGLE STAND MULTI-PASS ROLLING MILL 失效
公开(公告)号：JPS62156011A
公开(公告)日：1987-07-11
申请号：JP29548885
申请日：1985-12-27
申请人： ISHIKAWAJIMA HARIMA HEAVY IND , NIPPON STEEL CORP , TOSHIBA CORP
发明人： KUWANO HIROAKI , IURA TERUO , YAMAMOTO HIROYASU , TANAKA AKIHIRO
IPC分类号： B21B37/48 , B21B1/22 , B21B37/00 , B21B38/06
摘要： PURPOSE:To exactly control the tension fluctuation of a strip at two points different with respect to the winding part or drawing out part of work rolls by determining the speed difference of the strip at said points. CONSTITUTION:The speeds at the respectively different two points of the strip S wound on the work rolls 2, 3 are detected by speedometers 7, 8, 10, 11 and speed signals V1, V2, V3, V4 are outputted to arithmetic units 9, 12 for tension. The deviations V2-V1, V1-V3 of the speed signals are determined and the tension fluctuation of the strip S is calculated in the units 9, 12. The tension value in the measurement stage is calculated by adding the tension fluctuation to the tension value in a reference state. More specifically, the tension fluctuation of the strip S at every specified time interval is proportional to the speed difference of the strip S at the respective points of the time between the two points. The relative value of the tension fluctuation of the strip S wound on the rolls 2, 3 is, therefore, known by determining the output difference of the detectors 7, 8, 10, 11. As a result, the troubles such as sheet rupture and buckle are easily prevented by controlling the tension fluctuation of the strip.

4. 发明专利

JPS61269920A MEANDERING CONTROL DEVICE FOR MULTI-PASSES ROLLING MILL 失效
公开(公告)号：JPS61269920A
公开(公告)日：1986-11-29
申请号：JP11088085
申请日：1985-05-23
申请人： ISHIKAWAJIMA HARIMA HEAVY IND , NIPPON STEEL CORP , TOSHIBA CORP
发明人： KUWANO HIROAKI , KAWANAMI TAKAO , OKUDAIRA KEN , TANAKA AKIHIRO
IPC分类号： B21B37/00 , B21B1/22 , B21B1/30 , B21B13/02 , B21B37/68
摘要： PURPOSE:To prevent the meandering of a rolling material and to stabilize an operation by providing a detector for the transverse end position of a rolling material and a detector for the meandering rate of the rolling material to a multi-passes rolling mill having >=3 pieces of work rolls rotating at different peripheral speeds in one stand and changing independently the roll gaps of the rolling passes. CONSTITUTION:The rolling material S is rolled by work rolls 8 and 9, 9 and 10, 10 and 11 in the stage of rolling the material S with the multi-passes rolling stand having the work rolls 8-11 and backup rolls 7, 12. The transverse end position of the material S is detected by the optical detector 21 for the transverse end just before the material enters the space between the rolls 8 and 9. The resultant detection signal is fed to a meandering rate calculator 22 which inputs the calculated value to a relational calculator 23. Said calculator calculates relationally the meandering rate and a target signal 24 from a setter. The deviation signal for the meandering rate by such calculation is processed by a meandering controlling 25 and is applied to bending controllers 26a, 26b which drive liquid pressure cylinders 18a, 18b for the respective work rolls, thereby adjusting the work roll gaps and preventing the meandering of the rolling material.

5. 发明专利

JPS61269921A METHOD AND APPARATUS FOR ROLLING WITH MULTI-PASSES ROLLING MILL 失效
公开(公告)号：JPS61269921A
公开(公告)日：1986-11-29
申请号：JP11088185
申请日：1985-05-23
申请人： ISHIKAWAJIMA HARIMA HEAVY IND , NIPPON STEEL CORP , TOSHIBA CORP
发明人： KUWANO HIROAKI , KAWANAMI TAKAO , OKUDAIRA KEN , TANAKA AKIHIRO
IPC分类号： B21B37/00 , B21B1/22 , B21B1/30 , B21B13/02 , B21B37/68
摘要： PURPOSE:To prevent the meandering of a rolling material with a multi-passes rolling mill having >=3 pieces of work rolls rotating at different speeds in one stand by detecting the roll gaps on the operation side and driving side of at least one pass and controlling the respective gaps to target values. CONSTITUTION:The rolling material S is passed through the roll gaps 15-17 formed of the work rolls 8 and 9, 9 and 10, 10 and 11 and is thereby rolled in the stage of rolling the material S in the multi-passes rolling stand having the work rolls 8-11 and backup rolls 7, 12. The output signals from displacement gapes 21a, 21b attached to roll chocks 3a, 3b of the work roll 9 are fed to a relational calculator 22. The signals therefrom are compared with the output from a target value setting circuit 25 constituted of a relay 23 and a storage circuit 24 by a relational calculator 26. The resultant parallelism deviation signal is inputted to a parallelism control adjuster 27 by the output signal of which the roll gaps on the right and left operation side and driving side of the roll gap 15 are controlled and the meandering of the material S is prevented.

6. 发明专利

JPS6228018A ROLLING MILL 失效
公开(公告)号：JPS6228018A
公开(公告)日：1987-02-06
申请号：JP16734285
申请日：1985-07-29
申请人： ISHIKAWAJIMA HARIMA HEAVY IND , NIPPON STEEL CORP , TOSHIBA CORP
发明人： KUWANO HIROAKI , SHIRAISHI TOSHIYUKI , OKUDAIRA KEN , KATO TOSHIHIKO
IPC分类号： B21B13/00 , B21B1/22 , B21B37/18 , B21B37/62
摘要： PURPOSE:To adjust each roll gap separately and to stabilize a rolling work by providing a liquid cylinder for pressurizing a work roll on a backup roll and by equipping driving and controlling mechanisms for adjusting a gap at one position of work roll gap. CONSTITUTION:At the rolling, a target value 26 of the 2nd roll gap 22 is given to a control device 27 and by the liquid cylinders 19, 20 rolling loads are applied on each roll 12-15 through the backup rolls 11, 16. When the rolling load is varied, a signal of the 2nd roll gap 22 detected by a detector 25 and the target value are compared and calculated by the control device 27, then according to its deflection, a command is outputted from the control device 27 to the driving mechanism 24 to control the 2nd roll gap to be settled. In this case, the adjustment of the 1st and 3rd roll gaps 21, 23 is performed by the liquid cylinders 19, 20 and the 1st-3rd roll gaps are independently varied, respectively.

7. 发明专利

JPS6167503A Method and device for detecting tension of wrapping rolling mill 失效
标题翻译：用于检测卷绕轧制机的张力的方法和装置
公开(公告)号：JPS6167503A
公开(公告)日：1986-04-07
申请号：JP19019784
申请日：1984-09-11
申请人： Ishikawajima Harima Heavy Ind Co Ltd , Nippon Steel Corp , Toshiba Corp
发明人： KUWANO HIROAKI , YAMAMOTO KUNIYASU , OKUDAIRA KEN , MINEURA TOSHIMI
IPC分类号： B21B37/48 , B21B1/22 , B21B38/06
CPC分类号： B21B38/06 , B21B1/222
摘要： PURPOSE:To detect accurately a tension of strip at the wrapping part of roll and to prevent various kinds of troubles due to abnormal tensions, by detecting a horizontal force acting on a strip-wrapped work roll and subtracting a horizontal force produced by rolling from said horizontal force. CONSTITUTION:A strip (s) is rolled, by passing it through the 1st-3rd gaps 21-23 in sequence, and rotating respective rolls 1-4 at their prescribed speeds in a state of wrapping the strip (s) around the 2nd and 3rd work rolls 2, 3 as well as rolling it by adding the prescribed rolling down forces respectively. Horizontal forces F, F' acting on roll chocks 2, 3 in the inlet and outlet sides directions respectively, are detected by load cells 10, 15 because the forces F, F' are produced by the inlet and outlet tensions acting on the strip (s). On the other hand, a rolling force P is detected by a load cell 16, and a horizontal force Fp is obtained by using a prescribed equation based on the previously inputted values with the aid of a computing unit 17. A computing unit 18 subtracts Fp from F to obtain the inlet tension T1b of sheet (s) during rolling. In the same manner, an outlet tension T3f is obtained, to control each of roll- driving system and rolling down force, etc. based on these tensions.
摘要翻译：目的：准确检测卷筒包裹部分的条带张力，防止由于异常张力引起的各种麻烦，通过检测作用在带状卷绕工作辊上的水平力，减去由所述卷绕工作辊产生的水平力水平力。构成：通过使条带顺序地通过第一 - 第三间隙21-23，并且以围绕第二和第二部分包裹带的状态以相应的速度旋转相应的辊1-4，第3工作卷2,3，并分别加上规定的滚下力。由负载传感器10,15检测作用在入口侧和出口侧方向上的辊轴承座2,3上的水平力F，F'，因为力F'F'由作用在带上的入口和出口张力产生 s）。另一方面，通过测力传感器16检测出滚动力P，借助于计算单元17，通过使用基于先前输入的值的规定式来获得水平力Fp。计算单元18减去Fp 从F获得轧制过程中的片材的入口张力T1b。以相同的方式，获得出口张力T3f，以基于这些张力来控制滚动驱动系统和滚下力等。

8. 发明专利

JP2000084726A DRUM-TYPE FLYING CUTTER 失效
公开(公告)号：JP2000084726A
公开(公告)日：2000-03-28
申请号：JP26265998
申请日：1998-09-17
申请人： ISHIKAWAJIMA HARIMA HEAVY IND , NIPPON STEEL CORP
发明人： TAKASE HIROSHI , SATO HISASHI , KUWANO HIROAKI , FUJII YASUHIRO , TORITANI YOSHIYUKI , KONDO MICHINORI
IPC分类号： B23D25/12
摘要： PROBLEM TO BE SOLVED: To remarkably improve the board passing performance of a drum type flying cutter for preventing the leaping of a point when conveyed on an uneven surface between the table rollers, the insertion of the point into a gap between board passing parts by the self-weight deflection, the bending by the flying, and the generation of a loop of a strip relative to a tip board of the strip, an ordinary passing board and a passing board immediately after the cutting. SOLUTION: A drum-type flying cutter comprises cylindrical upper and lower drums 12a, 12b rotated and driven in synchronization with each other on a horizontal axis, upper and lower cutting blades 14 respectively mounted on the synchronous positions on the outer peripheral parts of the drums, upper and lower journal boxes 16a, 16b rotating and supporting the upper and lower drums, a cutting device for vertically driving only the upper journal box, and a guide device 20 arranged in adjacent to the lower drum, and a strip 1 is cut by rotating the upper and lower drums at a high speed in a state that an axis of the lower drum 12b is fixed.

9. 发明专利

JPH01177909A DETERMINATION OF MATERIAL SIZE IN MATERIAL SHEARING DEVICE 失效
公开(公告)号：JPH01177909A
公开(公告)日：1989-07-14
申请号：JP33562387
申请日：1987-12-28
申请人： ISHIKAWAJIMA HARIMA HEAVY IND , NIPPON STEEL CORP
发明人： SATO HIROYUKI , KUWANO HIROAKI , FUJISAWA YOSHIHISA , TAMAGAWA YOSHIHIKO
IPC分类号： B23D33/10 , B65H9/06
摘要： PURPOSE:To facilitate manufacture of long matters of many sorts in small quantities by positioning predetermined stoppers in the top surface of a transferrer for determining the sizes from a shear to each stopper as predetermined. CONSTITUTION:As a stopper positioning carriage 4 moves in parallel to the material feed direction corresponding to material shearing length, stoppers 29-1-29-5 in the stopper positioning carriage 4 move in the material feed direction and along the width of a transferrer while moving down, so the stoppers 29-1-29-5 are positioned. The forward ends of materials fed by the transferrer are then applied to the stoppers 29-1-29-5 to make predetermined sizes, and the plurality of materials 31-1-31-5 are sheared together, so a plurality of long matters of predetermined lengths can be obtained at the same time. By thus determining the sizes of the materials 31-1-31-5 to be desired lengths, manufacture of long matters of many sorts in small quantities can be performed easily.

10. 发明专利

JPS59185515A Rolling method at different speeds and rolling mill 失效
标题翻译：不同速度和滚轧机的轧制方法
公开(公告)号：JPS59185515A
公开(公告)日：1984-10-22
申请号：JP6043483
申请日：1983-04-06
申请人： Ishikawajima Harima Heavy Ind Co Ltd , Nippon Steel Corp
发明人： MIYAZAKI RITSUSHI , SHIRAGAMI MUTSUO , TAKAHASHI NORIO , KUWANO HIROAKI , MIYASAKA KIYOTO
IPC分类号： B21B37/00 , B21B37/68
CPC分类号： B21B37/68
摘要： PURPOSE:To prevent snaking and to perform stable rolling at different winding speeds even if tension is low by detecting directly the snaking quantity of a rolled material and controlling right and left gaps so as to change the same until the difference is made zero. CONSTITUTION:When a rolled material 9 snakes, the quantity thereof is detected with a snaking detector 17, and is compared with a target value by an adding amplifier 20, by which the deviation signal for the snaking quantity is generated. The signal 22 is processed with an adjuster 21 for controlling the snaking, and the output from the adjuster 21 is applied as signals 23, 24 for correcting right and left rolling down to adding amplifiers 15, 16. The signals for displacing the distons of hydraulic cylinders 7, 8 and the signals for correcting the rolling down are compared in the amplifiers 15, 16, and servocontrol valves 11, 12 control the inflow and outflow rates of the pressure oil to the cylinders 7, 8 in accordance with the differential signal. As a result, the right and left roll gaps are changed, by which the progression of the snaking is prevented and the target value given by a storage circuit 18 is restored for the material 9.
摘要翻译：目的：通过直接检测轧制材料的断屑量和控制左右间隙，即使张力低，也可以以不同的卷绕速度进行稳定的轧制，以便在不同的卷绕速度下进行稳定的轧制，直到差为零。构成：当轧制材料9蛇形时，用蛇形检测器17检测其数量，并且通过加法放大器20与目标值进行比较，由此产生用于蛇形数量的偏差信号。信号22用用于控制蛇形的调节器21进行处理，并且来自调节器21的输出被施加作为信号23,24，用于校正左右滚动到加法放大器15,16。气缸7,8和用于校正滚下的信号在放大器15,16中进行比较，并且伺服控制阀11,12根据差分信号控制压力油到气缸7,8的流入和流出速率。结果，左右辊间隙被改变，由此阻止了蛇纹的进展，并且材料9恢复了由存储电路18给出的目标值。

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