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1. 发明专利

JPS5592216A METHOD AND APPARATUS FOR CONTROLLING PLATE CROWN 失效
公开(公告)号：JPS5592216A
公开(公告)日：1980-07-12
申请号：JP16349878
申请日：1978-12-28
申请人： ISHIKAWAJIMA HARIMA HEAVY IND , NIPPON STEEL CORP
发明人： KIZAKI KIYOSHI , HARA TSUTOMU , EMORI TAKASHI , HONJIYOU HISASHI , TERAKAWA MASATOMO , TAKASHIMA YOSHIAKI , KAMATANI AKIHIRO
IPC分类号： B21B37/38 , B21B37/00
摘要： PURPOSE:To make the pass characteristic of plate stable and make control effective by determining the maximum value of plate crown control amount based on shape blind zone and distributing the control amount within that range thereby performing the plate crown control. CONSTITUTION:In rolling, the deformation resistances obtained from the width, thickness, steel kinds, temperature, etc. necessary for determining shape absolute blind zone are sent to a setter 9 by the signal from a rolling condition operating setter 8. From these values, the blind zone is operated by an arithmetic unit 10. Next, from this value, the maximum value of plate crown control amount is determined and within this range the control amount is distributed to the double chock work roll bending devices 7 of the respective stands. In this case, the degree of permissible shape is larger as it goes toward the upper stream stands and therefore the practicable blind zone may be widened and the plate crown control amount in the upstream stands may be correspondingly increased.

2. 发明专利

JPS5592217A METHOD AND APPARATUS FOR PLATE CROWN CONTROL IN CONTINUOUS ROLLING MILL 失效
公开(公告)号：JPS5592217A
公开(公告)日：1980-07-12
申请号：JP16349978
申请日：1978-12-28
申请人： ISHIKAWAJIMA HARIMA HEAVY IND , NIPPON STEEL CORP
发明人： KIZAKI KIYOSHI , HARA TSUTOMU , EMORI TAKASHI , HONJIYOU HISASHI , TERAKAWA MASATOMO , TAKASHIMA YOSHIAKI , KAMATANI AKIHIRO
IPC分类号： B21B37/38 , B21B37/00
摘要： PURPOSE:To increase plate crown control amount and improve quality by cooperatively performing pressure controlling of the double chock work roll bending devices provided to plural stands while maintaining a fixed ratio in the same direction. CONSTITUTION:Pressure oil is supplied via line 8 to the double chock work roll bending devices 7 provided to stands. A controller (operator) 13 which operates pressure so as to permit plate crown controlling in shape blind zone from control information 14 is provided and the pressure ratio of every stand is set in each pressure setter 12 based on the command from the controller 13. Based on this set ratio, pressure regulators 9 are operated from the pressure setters 12. Based on the command from the controller 13, a solenoid valve 11 is operated to operate the roll bending devices 7 of the plural stands in the same direction while maintaining their pressures at a fixed ratio.

3. 发明专利

JPS5592218A METHOD AND APPARATUS FOR CONTROLLING PLATE CROWN AND PLATE SHAPE IN CONTINUOUS ROLLING MILL 失效
公开(公告)号：JPS5592218A
公开(公告)日：1980-07-12
申请号：JP16350078
申请日：1978-12-28
申请人： ISHIKAWAJIMA HARIMA HEAVY IND , NIPPON STEEL CORP
发明人： KIZAKI KIYOSHI , HARA TSUTOMU , EMORI TAKASHI , HONJIYOU HISASHI , TERAKAWA MASATOMO , TAKASHIMA YOSHIAKI , KAMATANI AKIHIRO
IPC分类号： B21B37/38 , B21B37/00
摘要： PURPOSE:To hold the control amounts of the fore stage and expand the control amount of the final stand by cooperatively controlling the plural stands of the fore stage as group and letting plate crowns be controlled within shape blind zones independently of the stands of the post stage. CONSTITUTION:In the respective stands S4-S6 of the post stage, the control amounts of the plate crown of the respective stands S4-S6 are forecast and operated in an arithmetic unit 12 with the widths b1-b6 of the shape blind zone in each stand as data and the plate crowns are independently controlled within the individual shape blind zones in the respective stands by controlling pressure regulating valves 10 with respective pressure indicators 11. Here, the allowable range of the shapes is widened except in the final stand S6 and the plate crowns are controlled at the large plate crown control amounts within the practicable blind zones. In the final stand S6, the plate crown control is accomplished within the shape absolute blind zone. Thereby, the plate crown control amount in the final stand may be expanded.

4. 发明专利

JPH0466206A MULTIPLE ROLLING MILL 失效
公开(公告)号：JPH0466206A
公开(公告)日：1992-03-02
申请号：JP17909890
申请日：1990-07-06
申请人： ISHIKAWAJIMA HARIMA HEAVY IND
发明人： TONOBE TAKEHIKO , KIZAKI KIYOSHI , NAKAMURA MASAYUKI
IPC分类号： B21B31/02 , B21B13/14 , B21B31/18 , B21B31/20
摘要： PURPOSE:To wear large diameter and small diameter work rolls averagely and to prevent scratch on a rolled stock by making a large diameter work roll unit and a small diameter work roll unit which consists of a small diameter work roll, intermediate roll and intermediate support roll shiftable in the direction of roll shaft. CONSTITUTION:In the case plural rolled stocks are orderly rolled from the narrow with a multiple rolling mill, the large diameter work roll unit A or small diameter work roll unit B is caused to oscillate in the direction of the axial line of roll by extending and contracting a shift cylinder. When, the position of contact of the large diameter work rolls 1, 2 or small diameter work rolls 27, 44 with the rolled stock is continuously varied and the large diameter work rolls 1, 2 and small diameter work rolls 27, 44 are averagely worn. So, the following rolled stock is prevented from scratching.

5. 发明专利

JPS63119914A MULTISTAGE ROLLING MILL 失效
公开(公告)号：JPS63119914A
公开(公告)日：1988-05-24
申请号：JP26461686
申请日：1986-11-06
申请人： ISHIKAWAJIMA HARIMA HEAVY IND
发明人： KIZAKI KIYOSHI , SUZUKI KATARU
IPC分类号： B21B31/02 , B21B13/14
摘要： PURPOSE:To easily and always stably perform supporting work rolls and controlling shapes by forming the bearing blocks of split rolls to be exchanged and fitted according to the diameters of the work rolls to enable inserting into thrust blocks of split rolls and fitting and supporting them by sharing guides. CONSTITUTION:Intermediate rolls 7, 7' and large diameter work rolls 18, 18' supported by these are disposed between upper and lower stay rolls 1, 1'. Furthermore, the rolls 18, 18' are supported capable of horizontal bending by the split rolls 13, 13' through single supporting rolls 19, 19'. At the time of exchanging the work rolls, the upper and lower rolls supporting blocks 4, 4' incorporating each roll are opened by operating a clearance adjusting device 2 and the rolls 19, 19' are detached together with the rolls 18, 18' and the bearing block 22. Then, the minimum diameter work roll (figure is omitted) is set and the large diameter supporting roll making the rolls 7, 7' to support it is set together with its bearing block. This bearing block is inserted and supported sharing with the guide 23 of the thrust block.

6. 发明专利

JPS63119913A MULTISTAGE ROLLING MILL 失效
公开(公告)号：JPS63119913A
公开(公告)日：1988-05-24
申请号：JP26461586
申请日：1986-11-06
申请人： ISHIKAWAJIMA HARIMA HEAVY IND
发明人： KIZAKI KIYOSHI , SUZUKI KATARU
IPC分类号： B21B31/02 , B21B13/14
摘要： PURPOSE:To facilitate the change of work rolls and alignment by incorporating small diameter work rolls, support rolls, split rolls, etc., in a support block capable of taking out and making the chocks of intermediate rolls possible to control upper and lower positions. CONSTITUTION:The small diameter work rolls 13, 13', support rolls 19, 19' for bending these rolls horizontally, split rolls 18, 18 for pressing these, etc., are incorporated and supported freely attachably and detachably into the support blocks 4, 4' for the rolls, and the blocks 4, 4' are made possible to control the upper and lower positions and to take out from a housing 1 in the axial direction. Thus, changings between the four stages rolling and rolling through the small diameter work rolls are made possible to perform easily and in a short time. Further, at the opening part 8 of the blocks 4, 4', the clocks 11, 11' of the intermediate rolls 10, 10' are supported by chock support blocks 9, 9' through vertical bending cylinders 12, 12'. In this way, the alignment between the small diameter work rolls 13, 13' and the horizontal bending devices 20, 20' is facilitated.

7. 发明专利

JPS63119912A MULTISTAGE ROLLING MILL 失效
公开(公告)号：JPS63119912A
公开(公告)日：1988-05-24
申请号：JP26356586
申请日：1986-11-05
申请人： ISHIKAWAJIMA HARIMA HEAVY IND
发明人： KIZAKI KIYOSHI , NAKAMURA MASAYUKI , SUZUKI KATARU
IPC分类号： B21B29/00 , B21B13/14 , B21B31/02
摘要： PURPOSE:To perform the high shape control of rolling with excellent productivity by storing support rolls contacting with small diameter work rolls, split backup rolls contacting with these and a horizontal bending device into a movable block. CONSTITUTION:A pair of intermediate rolls 41, 42 and a pair of small diameter work rolls 43, 44 confronting each other with a path line are provided between a pair of backup rolls 4, 5 to perform the rolling of a material hard to work etc. The support rolls 57, 58, 73, 74 contacting horizontally with each work roll 43, 44 are provided and for these, the split backup rolls 53, 54, 67, 68 are pushed and drawn by the horizontal bending devices such as the horizontal bending cylinders 47, 48, etc. In this way, the horizontal bending is given to the rolls 43, 44 through the support rolls 57.... Moreover, the horizontal bending device, the split backup rolls 53..., the support rolls 57..., etc., are stored in the blocks 6, 7 capable of being extracted in the direction of the roll axis to facilitate exchanging the rolls, etc.

8. 发明专利

JPS62220208A HYDRAULIC SCREW-DOWN CONTROL DEVICE 失效
公开(公告)号：JPS62220208A
公开(公告)日：1987-09-28
申请号：JP6208386
申请日：1986-03-20
申请人： ISHIKAWAJIMA HARIMA HEAVY IND
发明人： HONJO HISASHI , KIZAKI KIYOSHI
IPC分类号： B21B37/18 , B21B38/10
摘要： PURPOSE:To exactly detect and control a roll gap in roll barrel parts and to improve the dimensional accuracy of a product by detecting the gap of the barrel parts by roll gap detectors and controlling a hydraulic control valve by the deviation between the detected value and a reference gap. CONSTITUTION:The gaps y1-y4 in the roll barrel parts are detected by the position-adjustable roll gap detectors 19, 20 and the change rate DELTAy of the roll gap which is the average value thereof is calculated by an arithmetic unit 24. The DELTAy is corrected to the change rate DELTAx of the gap in a vertical direction by a device 25 for correcting an angle of inclination and an elastic change rate DELTAxe is added thereto in an adder 29, by which the change rate DELTAxD the roll gap is calculated. The deviation DELTAx'D between the DELTAxD and the reference quantity DELTAx0 is calculated in an adder 31 and the control valve 38 is controlled by such deviation, by which the rolling reduction is controlled. Since the roll gap is exactly detected in the barrel parts and the control is executed, the dimensional accuracy of the product is improved.

9. 发明专利

JPS62214812A DETECTION DEVICE FOR ROLL GAP 失效
公开(公告)号：JPS62214812A
公开(公告)日：1987-09-21
申请号：JP6022886
申请日：1986-03-18
申请人： ISHIKAWAJIMA HARIMA HEAVY IND
发明人： HONJO HISASHI , KIZAKI KIYOSHI
IPC分类号： B21B31/20 , B21B38/10
摘要： PURPOSE:To accurately measure roll gaps without influences of rolling oil and vibration by installing a noncontact type roll gap detector whose height is to be adjustable on the top and the bottom of a block movable in the rolling direction. CONSTITUTION:A block 13 is slidably fitted in a guide member 12, levers 15 and 16 are supported to be capable of opening and closing in the appearance of scissors appearance on a pin 14, and eddy current type roll gap detectors 19 and 20 are fixed to respective top heads 17 and 18 of the levers 15 and 16. For measurement of roll gaps, gaps y1 and y2 are measured by moving a piston rod 22 left, adjusting an opening angle of the levers 15 and 16, and fixing them with a fixture 21. The prescribed control valve is controlled in proportion to gap variation amounts for controlling oil amounts to a screw down cylinder. The detectors 19 and 20 accurately detect the gaps because the noncontact type detectors are not affected by the rolling oil and vibrations cause variations only due to a relative position.

10. 发明专利

JPS62144804A MULTI-STAGE ROLLING MILL 失效
公开(公告)号：JPS62144804A
公开(公告)日：1987-06-29
申请号：JP28896285
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 reduce the size of construction by supporting one work roll by an intermediate roll and support rolls and supporting the other work roll by an intermediate roll and divided type back up rolls in such a manner that the roll can be pushed horizontally at both sides. CONSTITUTION:The small-sized and chockless upper work roll 3 is supported by the upper intermediate roll 2 and is further supported by the support rolls 8, 9 disposed on the upper and down stream sides of a pass line 5. The small- diameter and chockless lower work roll 12 is pulled and supported by a spring 13 to the lower intermediate roll 11 and is supported by the divided type back up rolls 16, 17. The work rolls 3, 12 are supported in a manner as to offset to the down to the down stream side of the pass line 5. The fluctuation in the horizontal deflection of the work rolls 3, 12 is prevented and the shape control power is improved by such mechanism. The size of the work rolls is thus made smaller and the size of the construction smaller.

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