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1. 发明专利

JPH1014271A DRIVE CONTROLLER FOR ROLL IN BATH 失效
公开(公告)号：JPH1014271A
公开(公告)日：1998-01-16
申请号：JP16709096
申请日：1996-06-27
申请人： KAWASAKI STEEL CO
发明人： KAWASHIMA YOSHINORI , SUGANO TAKAHIRO , ADACHI TAKANORI , ARAI MAKOTO , NAGAI MASAKUNI
IPC分类号： B65H23/192 , C23C2/00 , H02P29/00 , H02P29/20 , H02P29/40 , H02P5/00
摘要： PROBLEM TO BE SOLVED: To plate a steel plate without causing scratches by detecting the rotational speed of a drive source and controlling the rotational speed to a target level. SOLUTION: A speed detector 52 determines the rotational speed of a drive motor 8 and imparts information on the rotational speed to a speed command output section 32 and a speed control section 38. Subsequently, the speed control section 38 determines the speed difference between the rotational speed reference of a support roll 11 and a motor speed feedback value and alters a speed gain, being used at the speed command output section 32, or performs switching operation of mechanical loss compensation with reference to the speed difference, thus performing rotational speed control. Since a drive source is feedback- controlled to match the peripheral speed of roll in the bath with the carrying speed of a steel band, the steel plate can be plated without causing scratches.

2. 发明专利

JP2536884B2 失效
公开(公告)号：JP2536884B2
公开(公告)日：1996-09-25
申请号：JP28290087
申请日：1987-11-09
申请人： KAWASAKI STEEL CO
发明人： KAWASHIMA YOSHINORI , KYONO YOSHIICHI
IPC分类号： B21B27/10 , B21B1/22 , B21B37/00 , B21B45/02

3. 发明专利

JPH07112211A METHOD FOR PASSING STEEL STRIP AND DEVICE THEREFOR 失效
公开(公告)号：JPH07112211A
公开(公告)日：1995-05-02
申请号：JP25811293
申请日：1993-10-15
申请人： KAWASAKI STEEL CO
发明人： KAWASHIMA YOSHINORI
IPC分类号： B21C47/18 , B21C47/34
摘要： PURPOSE:To prevent the collision of the tip of a steel strip against straightening rolls from occuring by passing strip through a pay-off leveler after attracting the steel strip with a magnetic attracting device which is attached at the tip of an expansion cylinder. CONSTITUTION:The steel strip 2 is attracted with the magnetic attracting device 8 and the tip of the steel strip 2 is moved to the outlet side of the pay-off leveler 5 by extending the expansion cylinder 9. By cutting off electricity to the magnetic attracting device 8 and contracting the expansion cylinder 9, the magnetic attracting device 8 is pulled out outside the pay-off leveler 5. The steel strip 2 is reduced with the pay-off leveler 5, a pay-off reel 4 and pay-off leveler 5 are reversed and tip straightening is executed in the form of returning the steel strip 2 which reaches the outlet side of the pay-off leveler 5. After straightening the tip part of the steel strip 2, the pay-off leveler 5 is released and the strip is passed through.

4. 发明专利

JPH0558523A SPEED CONTROL DEVICE OF CONTINUOUS PROCESSING FACILITIES 失效
公开(公告)号：JPH0558523A
公开(公告)日：1993-03-09
申请号：JP22080591
申请日：1991-08-31
申请人： TOSHIBA CORP , KAWASAKI STEEL CO
发明人： SATO SEIJI , SAKAMOTO GUNJI , KAWASHIMA YOSHINORI , MASUMITSU KOJI
IPC分类号： B21B39/08 , B65H23/18 , B65H23/188 , B65H51/30
摘要： PURPOSE:To prevent speed reduction of the pre-processing section and prevent stopping of the intermediate processing section as long as possible by providing a speed criteria switching means where three speed criteria are added to the respective corresponding sections when the post-processing section is operated at a reduced speed or stopped. CONSTITUTION:A speed criteria circuits 41,43 generate the speed criteria for the pre-processing section and the post-processing section respectively. A speed criteria circuit 73 calculates and outputs the speed criteria of the intermediate processing section where two loopers reach the longer end at the same time on the basis of these speed criteria. A speed criteria switching means achieves ON/OFF operation of contacts 44, 46, 48 and adds the speed criteria of the speed criteria circuit 41 to the intermediate processing and the post-processing sections respectively during the normal operation, adds the speed criteria of the speed criteria circuit 41 to the pre-processing section when the post- processing section is operated at a reduced speed or stopped, adds the output of the speed criteria generating means 73 to the intermediate processing section, and adds the speed criteria of the speed criteria circuit 43 to the post-processing section respectively.

5. 发明专利

JPH04254560A METHOD AND APPARATUS FOR CONTROLLING DRIVE OF UNDER-LIQUID ROLL IN LIQUID TANK STRIP PROCESS LINE 失效
公开(公告)号：JPH04254560A
公开(公告)日：1992-09-09
申请号：JP1333791
申请日：1991-02-04
申请人： KAWASAKI STEEL CO
发明人： KAWASHIMA YOSHINORI
IPC分类号： C23C2/00 , C23C2/40
摘要： PURPOSE:To make use of mechanical seal unnecessity by arranging radial blades at tip part of a roll in liquid for driving a steel strip in a liquid tank, injecting the liquid to the blades and rotating the roll in the liquid. CONSTITUTION:At the time of guiding the steel strip 1 into/from the liquid 5 in the liquid tank 4 by rotating the roll 21 in the liquid, plural blades 25 are fitted as radial state to one end of a shaft 22 of the roll 21 in the liquid. At the time of normally rotating the roll 21 in the liquid, by working a pump 10, the liquid 5 is sucked from a suction hole 28 and discharged toward the blades 22 from a discharging hole 24 through a liquid feeding pipe 25. Further, at the time of reversely rotating the roll 21 in the liquid, by a pump 33, the liquid 5 is sucked from the suction hole 28 and discharged toward the blades 22 from a discharging hole 26 through a liquid feeding pipe 27. Therefore, the roll 21 in the liquid is not driven with a motor arranged at out of the liquid tank 4 through a shaft and the mechanical seal is unnecessary and leakage of the liquid 5 in the liquid tank 4 can be eliminated.

6. 发明专利

JPH038515A METHOD FOR CONTROLLING LOOPER 失效
公开(公告)号：JPH038515A
公开(公告)日：1991-01-16
申请号：JP14288989
申请日：1989-06-07
申请人： KAWASAKI STEEL CO
发明人： KAWASHIMA YOSHINORI , YAMAMOTO HIROMASA
IPC分类号： B21B39/08 , B21B41/12
摘要： PURPOSE:To prevent secondary rupture from being generated with the movement of a steel strip by using a roll provided with a disk brake to a fixed roll and actuating the disk brake according to the passing speed of the steel strip to decelerate and stop the fixed roll. CONSTITUTION:The fixed roll 5A provided with a disk brake is used for a fixed roll in a looper 2. A hydraulic pressure supply tube 19 is connected with the disk brake and a regulating valve 20 is closed and opened by a command from a main controller 10 to decelerate and stop the fixed roll 5A. A speed detector 21 is mounted on the shift of the fixed roll 5A and a signal for a detected actual speed of the fixed roll 5A is inputted into the main shaft controller 10. When the actual speed exceeds the reference speed, the disk brake is actuated to give a deceleration torque to the fixed roll 5A and the fixed roll 5A nearly synchronizes the passing speed of the line, decelerates and stops and the overrun of the fixed roll 5A is hindered.

7. 发明专利

JPH02307620A METHOD FOR CONTROLLING COLD ROLLING MILL 失效
公开(公告)号：JPH02307620A
公开(公告)日：1990-12-20
申请号：JP12889189
申请日：1989-05-24
申请人： KAWASAKI STEEL CO
发明人： KAWASHIMA YOSHINORI
IPC分类号： B21B37/00 , B21B37/48 , B21B37/54 , B21C47/02
摘要： PURPOSE:To nicely hold the shape of a coil to be coiled up by finding the GD of the coil from a coil length coiled by a tension reel, determining a decelerating rate according to this GD and decelerating and stopping the reel according to the decelerating rate when the sheet is ruptured. CONSTITUTION:Since a steel strip begins to be coiled round a tension reel, the number of revolution is detected by a number of revolution indicator 14 and the number of revolution signal is inputted into a coil length measuring circuit 66 to measure the coil length. The signal for the coil length is inputted into a GD arithmetic circuit 67 to operate the coil diameter of the steel strip cooled round the tension reel. Then, the GD in the coil diameter is operated. The decelerating rate possible to stop the coil without deforming it based on the found GD of the coil is selected from a characteristic curve given in advance. When a rupture signal for the sheet is sent from a rupture detecting circuit 61, the decelerating rate is outputted to a speed controller 65 of the tension reel to decelerate and stop the tension reel.

8. 发明专利

JPH0270280A CONTROL METHOD FOR ELECTRIC MOTOR 失效
公开(公告)号：JPH0270280A
公开(公告)日：1990-03-09
申请号：JP22165688
申请日：1988-09-05
申请人： KAWASAKI STEEL CO
发明人： KAWASHIMA YOSHINORI
IPC分类号： H02P29/00 , H02P29/40
摘要： PURPOSE:To prevent trouble of overheat and power source trip or the like by enabling a limit value of current, supplied to an electric motor, to be set to a value different in the time of fixed speed operation and in the time of acceleration and deceleration operation and preventing the electric motor from carrying its overcurrent. CONSTITUTION:In a current limiter arithmetic circuit 30, first a speed command V0 is time-differentiated (dV0/dt), when a calculated differential value is equal to zero, because an electric motor 10 is judged to be in fixed speed operation rotating at a fixed speed, a command of setting a current limit value to 100% the rating of the electric motor 10 is output to a current limiter 28. On the contrary, when the calculated differential value is judged to be not equal to zero, because the electric motor 10 is judged to be in acceleration and deceleration operation, a command of setting the current limit value to 200% the before said rotating is output to the current limiter 28. By the method, the electric motor 10 can be prevented from showing its trouble of burning and power source trip or the like due to a continued overcurrent while enabling a sufficient torque to be obtained of acceleration and deceleration.

9. 发明专利

JPH01127103A METHOD FOR CONTROLLING COLOR TONE OF FRONT AND REAR SURFACES OF ROLLED STOCK 失效
公开(公告)号：JPH01127103A
公开(公告)日：1989-05-19
申请号：JP28290087
申请日：1987-11-09
申请人： KAWASAKI STEEL CO
发明人： KAWASHIMA YOSHINORI , KIYONO YOSHIICHI
IPC分类号： B21B27/10 , B21B1/22 , B21B37/00 , B21B45/02
摘要： PURPOSE:To prevent generation of color tone differences between the front and rear surfaces of a steel strip by detecting a motor speed of upper and lower work rolls, integrating a difference between both the speeds to obtain a rolling roll lubricating condition, and controlling a rolling oil supply amount to respective rolls. CONSTITUTION:Respective speed values of a driving motor of upper and lower work rolls and coefficients indicating a lubricating condition of rolling is calculated by integrating a difference between both the speeds. Respective rolling oil replenishing amounts for the work rolls are decided in accordance with the obtained condition. By control of the rolling oil replenishing amounts, rolling roll lubrication for each roll is uniformized and generation of color tone differences between the front and rear surfaces of a rolled stock and in the length direction of the stock is eliminated.

10. 发明专利

JPH1046398A METHOD FOR CONTROLLING PLATING CURRENT OF ELECTROPLATING EQUIPMENT 失效
公开(公告)号：JPH1046398A
公开(公告)日：1998-02-17
申请号：JP20213396
申请日：1996-07-31
申请人： KAWASAKI STEEL CO
发明人： KAWASHIMA YOSHINORI , NAKAZONO YOJI
IPC分类号： C25D7/06 , C25D21/12
摘要： PROBLEM TO BE SOLVED: To provide a method for controlling the plating current of an electroplating equipment with the ignition and burning in the flexible conductor of the equipment prevented with a simple device. SOLUTION: The surface temp. of a flexible conductor through which a plating current is passed is measured with an IR-radiation thermometer in an electroplating equipment, and the current is controlled based on the measured values. Further, the surface temps. of the plural flexible conductors for applying a plating current to the same plating tank are measured by an IR-radiation thermometer, and the current is controlled based on the difference in surface temp. between the flexible conductors. More preferably, the current strength of the plating tank is controlled to conform to the reference current strength.

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