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21. 发明专利

JPS6226844B2 失效
公开(公告)号：JPS6226844B2
公开(公告)日：1987-06-11
申请号：JP2718881
申请日：1981-02-25
申请人： SUMITOMO METAL IND
发明人： KONDO KATSUYA , NISHINO TAKAO
IPC分类号： B21B37/20 , B21B37/18 , B21B37/64 , B21B37/66

22. 发明专利

JPS6260490A CONTROL METHOD OF DIFFERENT SPEED OF ROLLING MILL 失效
公开(公告)号：JPS6260490A
公开(公告)日：1987-03-17
申请号：JP19818385
申请日：1985-09-06
申请人： SUMITOMO METAL IND , IGETA KOBAN KK
发明人： KONDO KATSUYA , YOSHIMOTO TOMOKICHI
IPC分类号： G05D13/62 , B21B37/00 , B21B37/18 , B21B37/46 , H02P5/46
摘要： PURPOSE:To conduct stable different-speed rolling at all times even when the speed of rolling is decelerated by keeping the speed ratio of upper and lower drive motors constant. CONSTITUTION:The speed of revolution of upper and lower drive motors 6, 7 is each detected by speed detectors 19, 17, and transmitted over a speed-ratio computer 23. The speed-ratio computer 23 obtains the ratio of both speed of revolution, and outputs it to an adder 24. A set point set to a different-speed setter 26 is inputted to the adder 24, the adder 24 outputs the different signal section to a different-speed controller 25, and the different-speed controller 25 each outputs positive and negative signals having the same absolute value to an adder 11 for the lower drive motor and an adder 9 for the upper drive motor, and adjusts the fields of both drive motors in order to conform the ratio of the speed of revolution to the set value.

23. 发明专利

JPS61222624A CONTROLLING METHOD OF HYDRAULIC REDUCTION 失效
公开(公告)号：JPS61222624A
公开(公告)日：1986-10-03
申请号：JP6575885
申请日：1985-03-28
申请人： SUMITOMO METAL IND
发明人： YASUNARI MASAHIRO , KONDO KATSUYA
IPC分类号： B21B37/00 , B21B37/62 , B21B37/78 , B21H7/00
摘要： PURPOSE:To prevent a delay of reduction response just before finishing of rolling at a pipe end by detecting a differential pressure at a servo-valve usually and changing gains in the electric control system continuously using a function of differential pressure-electric control system gains to make a flow rate of the servo-valve to constant. CONSTITUTION:When set value P60 is inputted in a comparator 7, the top or rear end of a rolling stock is selected, an opening of the servo-valve is indicated through a change-over contact 6-1 or 6-2 of a flow control circuit 6 and an amplifier 5 of the servo-valve, and an oil pressure is detected by an oil pressure detector 8. A flow rate into the servo-valve 4 is made constant by the fact that the differential pressure DELTAP is calculated using the detected hydraulic pressure the differential pressure DELTAP calculated using the detected oil pressure is inputted into the flow control circuit 6, a gain K o the electric control system is changed continuously using a function of the electric control system gain K-DELTAP.

24. 发明专利

JPS61189811A CONTROL METHOD OF PLATE THICKNESS 失效
公开(公告)号：JPS61189811A
公开(公告)日：1986-08-23
申请号：JP2894085
申请日：1985-02-15
申请人： SUMITOMO METAL IND
发明人： KONDO KATSUYA
IPC分类号： B21B37/18 , B21B37/54
摘要： PURPOSE:To control plate thickness of rolled plates accurately by dividing a thickness control signal into a high frequency component for tension control and a low frequency component for reduction position control and controlling a plate thickness using the above two components simultaneously for rolling metal plates and controlling a plate thickness by adjustment of both tension and reduction position. CONSTITUTION:A longitudinal plate thickness control signal (c) is calculated by adding an inlet side plate thickness deviation signal (a) which is the difference between a measured thickness by an inlet side thickness gage 6a of the mill 1 and the target value to an outlet side plate thickness deviation (b) signal measured an outlet side plate thickness gage 6b of the mill 1 by a plate thickness controller 7 for rolling of steel plates S by the rolling mill 1. That signal is divided into a high frequency component (d) for tension control of a steel plate between reels 2 and 3 and the mill 1 and a low frequency component (e) for reduction position control through a filter. The signal (d) is outputted to an inlet and outlet side tension controllers 4 and 5 and the signal (e) is outputted to a reduction position controller 13. Simultaneous adjustment of both a tension and pressing-down position controls makes a longitudinal plate thickness be equal to the target thickness quickly and accurately.

25. 发明专利

JPS5916529B2 JPS5916529B2 - 失效
公开(公告)号：JPS5916529B2
公开(公告)日：1984-04-16
申请号：JP3420777
申请日：1977-03-28
申请人： Sumitomo Metal Ind
发明人： KONDO KATSUYA , YAMAKAWA TOMIO
IPC分类号： B21B37/48 , B21B37/00 , B21B37/46 , B21B37/50 , B21B37/52 , B65H77/00 , G05D13/62
CPC分类号： B21B37/52 , B21B37/50

26. 发明专利

JPS59288B2 JPS59288B2 - 失效
公开(公告)号：JPS59288B2
公开(公告)日：1984-01-06
申请号：JP4061780
申请日：1980-03-29
申请人： Sumitomo Metal Ind
发明人： KONDO KATSUYA , ASAKAWA MOTOO , MATSUBARA NORYUKI
IPC分类号： C21D9/52 , B21B37/00 , B21B37/74 , B21B37/76 , B21B45/02 , G05B11/32

27. 发明专利

JPH0468044B2 失效
公开(公告)号：JPH0468044B2
公开(公告)日：1992-10-30
申请号：JP2789283
申请日：1983-02-22
申请人： SUMITOMO METAL IND
发明人： OOI TOSHA , KONDO KATSUYA , NISHINO TAKAO
IPC分类号： B21B37/00 , B21B37/26 , B21B37/48

28. 发明专利

JPH02217109A METHOD FOR CONTROLLING TENSION OF MANDREL MILL 失效
公开(公告)号：JPH02217109A
公开(公告)日：1990-08-29
申请号：JP3749589
申请日：1989-02-16
申请人： SUMITOMO METAL IND
发明人： BAN SEIICHI , KONDO KATSUYA , TAMAISHI ZENICHI , NAKAJIMA KAZUHIRO
IPC分类号： B21B37/00 , B21B17/04 , B21B37/48 , B21B37/78
摘要： PURPOSE:To perform tension control in high accuracy to uniformize the thickness of tube material by calculating the tension between stands through the loaded torque of a roll driving motor, a rolling load of each stand and a parameter calculated from it. CONSTITUTION:A mandrel bar 2 is inserted into the tube material 1 and rolling is carried out in plural stands A1 - Ak. The current and the number of rotation of the roll driving motor M are detected by a detector 6, a TG in this mandrel mill to find the loaded torque Gi. On one hand, a rolling load Gi at each stand Ai is found by a load a load detector 7. Consequently, a parameter ai.lambdadi+ui.Ri for the rolling loadis presumed by an arithmetic and control unit 10. Then, as a result, a tension Fi-Fi1 given to the tube material 1 between stands is calculated by a formula : Fi-Fi-1=2[Gi-(ai.lambdadi+ui-Ri)Pi]/Ri. The correction of the number of rotation of the roll at each stand is operated considering the deviation between this calculated tension and the target tension and the mutual intervention between stands. The motor M is adjusted to control the tension through an adjuster ASR for the number of rotation of the roll and a thyristor SCR inaccordance with this correction.

29. 发明专利

JPH0137205B2 失效
公开(公告)号：JPH0137205B2
公开(公告)日：1989-08-04
申请号：JP13183481
申请日：1981-08-22
申请人： SUMITOMO METAL IND
发明人： KONDO KATSUYA , TAJIMA SHIGERU , MATSUDA YUKIO , KUWAYAMA TETSUYA
IPC分类号： B21B1/28 , B21B37/00 , B21B37/18 , B21B37/48 , B21B37/58

30. 发明专利

JPS61189812A THICKNESS CONTROL METHOD OF ROLLING MILL 失效
公开(公告)号：JPS61189812A
公开(公告)日：1986-08-23
申请号：JP2894185
申请日：1985-02-15
申请人： SUMITOMO METAL IND
发明人： KONDO KATSUYA
IPC分类号： B21B37/18 , B21B37/54
摘要： PURPOSE:To control a plate thickness of steel plates accurately by measuring a steel plate thickness at both an inlet and outlet sides of a rolling mill, operating a feed forward and a feed back signal based on each target thickness value, sand modifying a steel plate tension and a reduction position for rolling of steel plates and others by the rolling mill. CONSTITUTION:Plate thickness deviation signals (a) and (b) which are a respective inlet and outlet difference from the target thickness values are obtained by measuring a plate thickness by an inlet and outlet side thickness gages 6a and 6b and inputting the measured values into a plate thickness controller 7 for rolling steel plates by the rolling mill 1. A feed forward plate thickness control signal (c) and a feed back plate thickness control signal (d) from the plate thickness controller 7 are used to eliminate those deviation. The former signal (c) controls a number of revolution of reel motors M2 and M3 of the inlet and outlet side controllers 4 and 5 as a tension modifying signal. The latter signal (d) is converted to a reduction position modifying signal and is inputted into a reduction position controller 13 to control a steel plate thickness accurately.

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