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51. 发明专利

JPS61222618A ADAPTIVE CONTROLLING METHOD IN ROLLING MILL 失效
公开(公告)号：JPS61222618A
公开(公告)日：1986-10-03
申请号：JP6367985
申请日：1985-03-29
申请人： HITACHI LTD
发明人： ENDO TOSHIO , NAKAI KOZO , MOROOKA YASUO
IPC分类号： B21B37/00
摘要： PURPOSE:To perform the adaptive control of high accuracy by correcting the models of the load and advance factor by finding deformation resistance and friction coefficient errors. CONSTITUTION:The plate thickness just under the rolling roll is found from the relation of the constant mass flow by detecting the plate speed at the first step. At the second step advance factor fA is found from the plate speed and peripheral speed of the roll of rolling mill. The load PA of rolling mill is mea sured at the third step. At the 4th step the load P and advance factor (f) are operated by a mathematical model from the plate thickness of the first step and the respective primary influence coefficient differential developed with the deforma tion resistance and friction coefficient as the parameter at the vicinity to this operation result is found. The errors in the deformation resistance and friction coefficient are found from the measured values of the load PA and advance factor fA and the operated value at the forth step are found at the fifth step. The models of the load and advance factor is corrected by using the deforma tion resistance and friction coefficient errors obtd. from the first - fifth steps.

52. 发明专利

JPS61176412A SETUP METHOD IN CONTROL OF DIFFERENT PERIPHERAL SPEED ROLLING 失效
公开(公告)号：JPS61176412A
公开(公告)日：1986-08-08
申请号：JP1655885
申请日：1985-02-01
申请人： HITACHI LTD
发明人： ENDO TOSHIO , NAKAI KOZO
IPC分类号： B21B1/22 , B21B37/00 , B21B37/46
摘要： PURPOSE:To set up rolling conditions at high speed in the control of different peripheral-speeds rolling, by operating a roll opening and each roll peripheral speed at the time of different peripheral speeds from the sheet thickness of a stock to be rolled, the sheet thickness after rolling and the aimed rolling load in the different peripheral speeds rolling, and setting respective values to the operated values. CONSTITUTION:The setup of different peripheral-speeds rolling for rolling a stock to be rolled by passing the stock between a pair of rolling rolls and driving the rolls at different peripheral speeds is performed in the following manner. That is, a rolling load P is represented by a correction term DELTAP including a rolling torque G* and a different speed ratio, at the time of equal speeds rolling as parameters. Further, rolling torques TL, TN are represented by correction terms DELTAGL, DELTAGN including the rolling torque G* and the different speed ratio, at the time of equal speeds rolling, as parameters. And a different speed ratio capable of obtaining a maximum volumetric speed is operated under the conditions that the rolling load and torque are in allowable ranges. Next, a roll opening is further operated from a rooling force obtained by said operation to set the roll peripheral speed and the roll opening obtained by said operation.

53. 发明专利

JPS5847244B2 JPS5847244B2 - 失效
公开(公告)号：JPS5847244B2
公开(公告)日：1983-10-21
申请号：JP5962575
申请日：1975-05-21
申请人： Hitachi Ltd
发明人： NAKAI KOZO
IPC分类号： B21B37/00

54. 发明专利

JPS5847243B2 JPS5847243B2 - 失效
公开(公告)号：JPS5847243B2
公开(公告)日：1983-10-21
申请号：JP3442575
申请日：1975-03-24
申请人： Hitachi Ltd
发明人： NAKAI KOZO
IPC分类号： B21B37/00 , B21B27/06

55. 发明专利

JP2533532B2 失效
公开(公告)号：JP2533532B2
公开(公告)日：1996-09-11
申请号：JP9975587
申请日：1987-04-24
申请人： HITACHI LTD
发明人： KOIZUMI MINORU , MORI KINJI , SUZUKI YASUO , KONO KATSUMI , ORIMO MASAYUKI , NAKAI KOZO , KASASHIMA HIROKAZU
IPC分类号： G06F11/28 , G06F12/00 , G06F15/00

56. 发明专利

JPH055726B2 失效
公开(公告)号：JPH055726B2
公开(公告)日：1993-01-25
申请号：JP7719086
申请日：1986-04-03
申请人： HITACHI LTD
发明人： HORI SHINJI , NAKAI KOZO , KOIZUMI MINORU , MORI KINJI , ORIMO MASAYUKI , SUZUKI YASUO
IPC分类号： G06F1/00 , B23Q41/02 , B65G43/08 , G05B15/02 , G05B19/418 , G06F15/16

57. 发明专利

JPH04127907A METHOD FOR CONTROLLING FINAL STAND OF COLD MILL 失效
公开(公告)号：JPH04127907A
公开(公告)日：1992-04-28
申请号：JP24907990
申请日：1990-09-19
申请人： HITACHI LTD , HITACHI INF & CONTROL SYST
发明人： YOSHIOKA KENICHI , TAKAHASHI OSAMU , NAKAI KOZO
IPC分类号： B21B37/00 , B21B37/58
摘要： PURPOSE:To perform stabler dull roll rolling and to shorten an off-gage length by determining the target rolling load of the final stand from the rolling load of the preceding stand in the beginning. CONSTITUTION:The set rolled load of the final stand 1 is calculated by multiplying the measured rolled load of the final-1 stand 2 by a coefficient instead of estimation calculation from a draft. At this time, the coefficient multiplied by the measured load of the final-1 stand 2 is a value showing the load balance of the final stand 1 and the final-1 stand 2 and each iron will or a mill operator grasps it empirically. A load balance coefficient to the rolled loads between stands capable of performing stable rolling is used. Since the measured values of the final-1 stand 2 hardly disperses, the set load is not confused by the disturbance of the measured value of the final stand 1. Dull rolling is stabilized further by using constant load control system for the rolling control system.

58. 发明专利

JPH03280641A TRANSMISSION CONTROL METHOD 失效
公开(公告)号：JPH03280641A
公开(公告)日：1991-12-11
申请号：JP7894990
申请日：1990-03-29
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： SAKUMA NOBUHARU , NAKAI KOZO
IPC分类号： H04L12/42
摘要： PURPOSE:To avoid deterioration in the transmission efficiency and response delay by registering a function code before relay and a function code after relay in pairs for function codes set to each repeater and setting a function code to be relayed to only a required repeater. CONSTITUTION:A function code representing a content of a message is added to each message, and a function code before relay and a function code after relay corresponding to the function code before relay are registered to each of repeaters 1020, 1330 and 2133. When a message is inputted from a loop transmission line 1 connecting to, e.g. the repeater 1020, a function code after relay corresponding to a function code before relay is added to the inputted message when a function code coincident with the function code of the inputted message in the function code before relay registered in the repeater 1020, the function code after relay corresponding to the code is added to the inputted message and the result is sent to other loop transmission line 2. Thus, the message is sent through only a loop requiring the message and the delay in response is avoided.

59. 发明专利

JPH0237243B2 失效
公开(公告)号：JPH0237243B2
公开(公告)日：1990-08-23
申请号：JP18895582
申请日：1982-10-29
申请人： HITACHI LTD
发明人： ENDO TOSHIO , MOROOKA YASUO , NAKAI KOZO
IPC分类号： B21B31/08 , B21B37/00

60. 发明专利

JPH01270163A PROCESSING SYSTEM FOR DISTRIBUTED SYSTEM 失效
公开(公告)号：JPH01270163A
公开(公告)日：1989-10-27
申请号：JP9810888
申请日：1988-04-22
申请人： HITACHI LTD
发明人： SUZUKI YASUO , MORI KINJI , KONO KATSUMI , ORIMO MASAYUKI , KOIZUMI MINORU , NAKAI KOZO , KASASHIMA HIROKAZU
IPC分类号： G06F15/16 , G06F5/00 , G06F15/177
摘要： PURPOSE:To alter the format of message data during on-line by converting the data format under present circumstances into the input/output data format for a format alterable range when the receiving side of the data is simultaneously conscious and takes in the message data. CONSTITUTION:The format altering information of the message data is transmitted to distributed sub-systems, and when the altering information is necessary, the sub-systems take in it. For the alterfaction of the program in the alterable range, the data format declared in the program with the message data as the input/output is registered in a data input/output control table as the input/output data format at the time of program registration. Further, when the message data are taken in, the message data format under the present circumstances are known by the format altering information, and it is converted into the input/output data format declared on a program side. Thus, the part necessary for the alteration in the alterable range can be altered on-line.

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