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1. 发明专利

JPH01171902A METHOD OF CONTROLLING DENSITY OF GREEN SHEET 失效
公开(公告)号：JPH01171902A
公开(公告)日：1989-07-06
申请号：JP33188387
申请日：1987-12-28
申请人： NARUMI CHINA CORP , SUMITOMO METAL IND
发明人： YANAI YURIKAZU , SUGIMURA TOSHIYUKI , OTANI HIROSHI , KONDO KATSUYA
IPC分类号： B28B3/02 , H05K3/46
摘要： PURPOSE:To continuously control the density of a green sheet and to stabilize its contraction at the time of baking by calculating a crude density from the measured values of the areal density and thickness of the sheet in a press line, comparing it for its calculation with a set crude density, and calculating a necessary applied pressure from their deviation thereby to control to feed it back to its pressing pressure. CONSTITUTION:A green sheet 1 is intermittently fed at one surface to be pressurized by an intermittent feeder 15. A fluorescent X-ray densimeter 11 and a laser thickness gauge 12 are mounted in space corresponding to one stroke to measure at the same point of each one surface to be pressurized. In this press line, the areal density of the sheet 1 measured by the densimeter 11 and the thickness measured by the gauge 12 are input to a crude density calculator 18 which calculates the crude density. This value is input to a crude density controller 13, compared to be calculated with a set crude density thereby to output a necessary applying pressure, and the pressure of a press 17 is controlled by a pressure controlled to a suitable value.

2. 发明专利

JPS61182817A AUTOMATIC PLATE THICKNESS CONTROLLING METHOD 失效
公开(公告)号：JPS61182817A
公开(公告)日：1986-08-15
申请号：JP2559985
申请日：1985-02-12
申请人： SUMITOMO METAL IND
发明人： KONDO KATSUYA
IPC分类号： B21B37/18
摘要： PURPOSE:To increase plate thickness accuracy by adjusting a reduction position by obtaining a tension modifying value using a thickness measurement of a rolled material and performing integration and proportional calculation of a value exceeding the dead zone of the modifying value. CONSTITUTION:Thickness meters 6a and 6b are set on the inlet and/or outlet sides of a reversible rolling mill 1, respectively. Thickness measurements in the longitudinal direction of the rolled material detected by the meters 6a and 6b are inputted into controllers 7 and 8, are compared with respective objective values, and a tension modifying value is outputted to a calculator 9. An output saturation device 1 provides the saturation limit of the modifying value from a modifying value calculator 10 and a calculator 12 performs integration and proportional calculation for setting of a constant dead zone. This method changes a reduction position changing value gradually. so that changeover from a tension to a pressing-down position is performed smoothly to increase plate thickness accuracy.

3. 发明专利

JPS6016850B2 失效
公开(公告)号：JPS6016850B2
公开(公告)日：1985-04-27
申请号：JP1728881
申请日：1981-02-06
申请人： SUMITOMO METAL IND
发明人： KONDO KATSUYA , TAJIMA SHIGERU
IPC分类号： B21B1/28 , B21B37/00 , B21B37/46

4. 发明专利

JPS5949084B2 JPS5949084B2 - 失效
公开(公告)号：JPS5949084B2
公开(公告)日：1984-11-30
申请号：JP3321276
申请日：1976-03-26
申请人： Sumitomo Metal Ind
发明人： KONDO KATSUYA , YAMAKAWA TOMIO
IPC分类号： B21B1/18 , B21B37/00 , B21B37/48 , B21B37/52 , G05D13/62
CPC分类号： B21B37/52 , B21B1/18 , B21B37/48

5. 发明专利

JPH02235512A METHOD FOR CONTROLLING TENSION OF RETAINER TYPE MANDREL MILL 失效
公开(公告)号：JPH02235512A
公开(公告)日：1990-09-18
申请号：JP5759989
申请日：1989-03-08
申请人： SUMITOMO METAL IND
发明人： BAN SEIICHI , KONDO KATSUYA , TAMAISHI ZENICHI , NAKAJIMA KAZUHIRO
IPC分类号： B21B37/00 , B21B37/48 , B21B37/78
摘要： PURPOSE:To uniformize the wall thickness of a tube stock over the full length by estimating the load torque of a motor at each stand by the current and the number of rotation of a roll driving motor through a specified formula to calculate the correction value for the number of rotation of the roll driving motor. CONSTITUTION:The load torque of the motor at each stand is estimated by the formula I from the current and the number of rotation of the roll driving motor 5 to obtain the average of the motor load torque before the tube stock is bitten by next stand from this estimated value. After the tube stock is bitten by next stand, the difference between the average and the estimated value is obtained, the correction value for the number of rotation of the roll driving motor is calculated by multiplying a coefficient by a deviation motor load torque value to correct the number of rotation of the roll driving motor by this calculated value. In the formula I, Kphi: field strength coefficient of roll driving motor, J: moment of inertia of roll driving system, T0: time constant of smoothing filter, Ia(s): variation of current of motor (expression in area S), n(s): variation of number of rotation of motor (expression in area S), TL(s): variation of load torque of motor (expression in area S), s: Laplace operator.

6. 发明专利

JPH01138989A CONTROLLING METHOD FOR REEL DRIVING MOTOR 失效
公开(公告)号：JPH01138989A
公开(公告)日：1989-05-31
申请号：JP29716587
申请日：1987-11-24
申请人： SUMITOMO METAL IND
发明人： UEDA ICHIRO , KONDO KATSUYA , YASUI EIZO , TANIGUCHI TAKESHI
IPC分类号： B21B37/48 , B21B37/00 , B21C47/00 , B21C47/16 , B21C47/18 , H02P7/298
摘要： PURPOSE:To stabilize reel tension and obtain high platethickness-controlling precision, by performing process for avoiding counting noise, and by performing differential arithmetic. CONSTITUTION:In a tension responding arithmetic unit 52, smoothing filters 527, 528, and a subtracter 529 are additionally arranged. By the smoothing filter 527, through the input of the rotational speed omega of a motor M detected by a rotational speed meter 51, counting noise is smoothing-processed, and an arithmetic unit omega' is produced. By the subtractor 529, a difference between this signal omega' and the original rotational speed omega is found, and with a multiplier 520, the difference is multiplied by the inverse number of a time constant, and the differential signal (domega/dt)' of the rotational speed omega is equivalently found. A difference between signal multiplied by the moment of inertia with a multiplier 522, and the signal TM' of generation torque TM smoothing-processed by the smoothing filter 528 is found by a subtracter 523, and the input to a subtractor 524 is provided as load torque TL'.

7. 发明专利

JPS632511A CONTROL METHOD FOR REEL DRIVING MOTOR 失效
公开(公告)号：JPS632511A
公开(公告)日：1988-01-07
申请号：JP14539086
申请日：1986-06-20
申请人： SUMITOMO METAL IND
发明人： KONDO KATSUYA , UEDA ICHIRO
IPC分类号： B21B37/48 , B21B37/00 , B21B37/18 , B21B37/54
摘要： PURPOSE:To eliminate response delay for tension changing signals and to obtain the good thickness accuracy by correcting armature currents by calculating a target value changing amount for armature currents based on tension changing signals obtained from measure thickness values and actual tensions. CONSTITUTION:A reel tension measured by a tension gage 50 installed between a reel 2 and a roll stand 1 and a measured signal from a rotating speed meter 51 of a motor M are inputted to a tension response arithmetic unit 52. A tension setting signal T is inputted to an adder 18, an acceleration or deceleration command signal S for entire rolling speeds is inputted to a computing element 16, and an acceleration or deceleration electric current signal SA is calculated and is inputted to the adder 18. An electric current target value changing amount IC calculated by the arithmetic unit 52 is inputted to the adder 18, which calculates the electric current target value IA based on inputs each as the signals T and SA and inputs the IA value to an electric current controller 11. The controller 11 controls an electric source device so that an armature current is equalized to the target value IA based on the target value IA and a measured armature current I by a resister 7 being a feedback signal.

8. 发明专利

JPS62230412A SHAPE CONTROLLING METHOD FOR ROLLING MILL 失效
公开(公告)号：JPS62230412A
公开(公告)日：1987-10-09
申请号：JP7464586
申请日：1986-03-31
申请人： SUMITOMO METAL IND
发明人： KONDO KATSUYA , KONO TERUO , KOMINE KAZUAKI , KITAMURA YOICHI , YASUI EIZO
IPC分类号： B21B37/28 , B21B13/14 , B21B37/00 , B21B37/38
摘要： PURPOSE:To improve the accuracy of controlling the shape of a sheet material by classifying the shape control elements of the sheet material to control element groups expressed by a functional relationship of lower degree and functional relationship of higher degree and distributing the same to respective shape control groups consisting of the functional components of the higher and lower degrees by the detection signal for the shape of the sheet material. CONSTITUTION:The relationship; y=ax (where y; sheet shape, x; size in the transverse direction of the material with the transverse center thereof as a zero point, a; coefft, n; degree) is set. The function of the lower degree is determined as the function of the degree lower than y=x and the function of the higher degree is determined as y=x -x . The sheet shape is taken in from a shape detector 6 positioned to face the material 1 to be rolled on the outlet side of a rolling mill M and is inputted as a shape detection signal to a function resolution part 13 through an asymmetrical component removing part 12. The detection signal is then respectively resolved to the functional components of the lower and higher degrees to execute the correction control. The control system of the sheet formation is made simple and the accuracy of the control is improved by the above-mentioned method.

9. 发明专利

JPS62187513A TENSION CONTROL METHOD FOR TANDEM ROLLING MILL 失效
公开(公告)号：JPS62187513A
公开(公告)日：1987-08-15
申请号：JP3043186
申请日：1986-02-14
申请人： SUMITOMO METAL IND
发明人： OI TOSHIYA , KONDO KATSUYA
IPC分类号： B21B37/48 , B21B1/24 , B21B37/00 , B21B37/52
摘要： PURPOSE:To keep the high accurate plate thickness with a tension between stands stably covering the total coil length by correctively controlling a rotating speed of the stand preceding the final stand and of the final stand based on outputs from a controlled variable arithmetic unit. CONSTITUTION:A tension detected by a tension meter 7 set between the stand 2 preceding the final stand 3 and the final stand 3 is compared with the tension target value 12 at a controlled variable arithmetic unit 22. Then, proportional plus integral arithmetic is performed and a control command is outputted to correct a plate thickness at the outlet side of the stand 2 to be thinner. A screwdown position correcting device 23 of the stand 2 controls a screwdown device 21 so as to correct a screwdown position of the stand 2 in the direction where a roll gap is closed. Outputs of the unit 22 are inputted into a roll speed correcting device 24 of the stand 3 and the device 24 calculates and outputs a command decreasing the final stand roll speed so that a plate thickness at the outlet side of the stand 2 corrected by the device 23 does not affect a finished plate thickness.

10. 发明专利

JPS61182818A TENSION AND PLATE THICKNESS CONROLLING METHOD 失效
公开(公告)号：JPS61182818A
公开(公告)日：1986-08-15
申请号：JP2560085
申请日：1985-02-12
申请人： SUMITOMO METAL IND
发明人： KONDO KATSUYA
IPC分类号： B21B37/18 , B21B37/00 , B21B37/48
摘要： PURPOSE:To improve product quality by obtaining a necessary tension controlling value based on a thickness of a rolled material, while subtracting an equivalent tension value related to plate thickness change from the tension controlling value to obtain a tension modifying value, and adjusting reel motor currents based on the gained tension modifying value. CONSTITUTION:Thickness meters 6a and 6b are set on the inlet and outlet sides of a reversible 4 stages rolling mill 1, respectively. A feed forward controller 7 and a feed back controller 8 are also set on the mill 1. An output saturation device 11 provides high and low saturation limits for plate thickness control and armature currents of the reel motor are controlled by corresponding high and low limit values when the tension modifying value exceeds the saturation limit. A necessary tension controlling value is obtained by thickness measurements by thickness meters 6a and 6b, while a tension value equivalent to a reduction modifying value is subtracted from the tension controlling value to obtain a tension modifying value. The current of reel motors M2 and M3 is adjusted based on that tension modifying value. In this way, the accuracy of tension control is increased and the product quality is improved.

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