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11. 发明专利

JPH06510A DEVICE FOR HORIZONTALLY SUPPORTING WORK ROLL AND ROLLING METHOD 失效
公开(公告)号：JPH06510A
公开(公告)日：1994-01-11
申请号：JP15784092
申请日：1992-06-17
申请人： HITACHI LTD
发明人： SHIMOGAMA HIRONORI , GOTO AKIRA , KAJIWARA TOSHIYUKI , MITSUI HIROMITSU , KOBAYASHI HIDEO , HORII KENJI
IPC分类号： B21B13/14 , B21B29/00
摘要： PURPOSE:To stably support work rolls and support rolls even in the case that not only variation in the diameter of the work roll but variation in the amount of offset between the work rolls and variations in the other rolling rolls in a device for horizontally supporting the work rolls of a rolling mill. CONSTITUTION:This device has the support rolls 5 with which the horizontal forces that act on the work rolls 1 are supported, supporting bearings 6 which are zigzag arranged in the axial direction and with which the support rolls are supported and supporting frames 7 with which these supporting bearings are supported and are made into such a structure as the supporting frames 7 are allowed to execute rectilinear motion with rectilinear driving devices 9 and rectilinear motion bearings 11 and turning movement with rotary fulcrums 10 and turning driving devices 12. In this way, in accordance with the variations in the diameters of the work rolls, support rolls and supporting bearings and variation in the amount of offset of the work roll, the supporting frames are moved so that the straight line which connects the axial center of the work roll and the axial center of the support roll is always passed through approximately the middle between the axial centers of the supporting bearings which are zigzag arranged.

12. 发明专利

JPS6130224A Sheet-width regulating scale breaker 失效
标题翻译：板宽调节规模断路器
公开(公告)号：JPS6130224A
公开(公告)日：1986-02-12
申请号：JP15123684
申请日：1984-07-23
申请人： Hitachi Ltd , Nippon Steel Corp
发明人： IIDA HIROSHI , KIMURA TOMOAKI , MITSUI HIROMITSU
IPC分类号： B21B37/00 , B21B37/22 , B21B45/06 , B21D1/05
CPC分类号： B21B45/06 , B21B2265/02 , B21D1/05
摘要： PURPOSE:To reduce a device in size as well as a cost in manufacturing by providing sheet-width meters to the front and rear sides of a scale breaker for the purpose of controlling the driving force of tension rolls and regulating the elongation of a strip in accordance with the change of its width. CONSTITUTION:Tension rolls 2, 3, 8, 9 for imposing a tension on a strip 1 are arranged at the front and rear sides of a scale breaker 5, and sheet-width meters 19, 20 are also provided to respective sides. The sheet width of strip 1 is detected by the meter 19, and its detection signal is inputted to a controller 21 together with a target sheet-width signal. The tension of strip 1 in the scale breaker 5 is changed by increasing or decreasing the driving force of a motor 17 for the rolls 2, 3 or a motor 18 for the rolls 8, 9 based on the computed results of controller 21, to keep the sheet width constant. By this method, the need for side trimming is eliminated, the device is reduced in size, and the running cost is also reduced.
摘要翻译：目的：为了减少设备的尺寸以及制造成本，为了控制张力辊的驱动力并调节带材的伸长率，可以通过在断屑器的前侧和后侧设置片材宽度计根据其宽度的变化。构成：用于在带材1上施加张力的张紧辊2,3,8,9布置在刻度盘5的前侧和后侧，并且片宽度计19,20也设置在相应的侧面。条带1的纸张宽度由仪表19检测，其检测信号与目标纸张宽度信号一起输入到控制器21。通过根据控制器21的计算结果增加或减少用于辊2,3的电机17的驱动力或用于辊子8,9的电动机18的驱动力来改变断路器5中的带材1的张力，以保持纸张宽度常数。通过这种方法，消除了对侧面修边的需要，该装置的尺寸减小，并且运行成本也降低。

13. 发明专利

JPS60148616A CONTROLLING METHOD OF ROLLING MILL 失效
公开(公告)号：JPS60148616A
公开(公告)日：1985-08-05
申请号：JP301984
申请日：1984-01-11
申请人： NIPPON STEEL CORP , HITACHI LTD
发明人： IIDA HIROSHI , KATOU TADASHI , FURUYAMA BUNJI , MITSUI HIROMITSU
IPC分类号： H02P1/16 , B21B37/46 , H02P3/06
摘要： PURPOSE:To execute a stop control of a work roll under a reverse nongenerated state by detecting a real rotational direction on the way of a stop of the work roll, grasping a reverse generated state, and controlling it in the direction for eliminating a twist of an elastic connecting system. CONSTITUTION:Detectors 31, 31' generate signal 36, 36' corresponding to each detecting body 32, 32' when a coupling 22 rotates, and detect a real rotational direction of a work roll 20. The detected signals 36, 36' are inputted to an operational comparator 33, and outputted only while a rotational direction detecting signal 42 and an operating signal 40 are being inputted. When the signal from the comparator 33 is a forward turn, a stop control is executed as it is, and on the other hand, when the signal from the operational comparator 33 detects a reverse, a driving machine 26 is brought to a driving control in the forward turn direction. That is to say, by repeating a reverse preventing action of the work roll in this way, a control device 34 controls the driving machine 26 so that a reverse of the work roll 20 is not caused at the time of a stop of a mill, based on an input data from the operational comparator 33 and an input data from a pilot generator 35.

14. 发明专利

JPS6097155A DOUBLE-DRUM TYPE COIL REWINDER 失效
公开(公告)号：JPS6097155A
公开(公告)日：1985-05-30
申请号：JP20467583
申请日：1983-11-02
申请人： HITACHI LTD
发明人： TANICHI EIJI , MITSUI HIROMITSU
IPC分类号： B21C47/22 , B65H19/10 , B65H19/12 , B65H19/14 , B65H19/18 , B65H19/22
摘要： PURPOSE:To make continuous coil rewinding attainable without stopping a line, by making a rotation motion possible into bot normal and reverse directions, in case of a device which sets up plural oieces of winding drums on the same circumference inside a rotor in a way of making each rotatable as well as revolva- ble. CONSTITUTION:In a double-drum rewinding machine, since a spot, where a coil is inserted into a rewinder drum, is of only one in number, it is required to insert a secceeding coil 1' into a rewinder drum B when a preceding coil 1 is rewound out of a rewinder drum A. Therefore, the rewinding machine 6 is revolved in a normal rotative direction, after shifting the rewinder drum B from right downward to left upward as shown in illustration, the succeeding coil 1' is inserted into the rewinder drum B. Next, the machine 6 reversely revolves this drum B and again situates the rewinder drum A at the left upper position while the rewinder drum B at the right lower position, respectively, whereby it performs a tip process of the succeeding coil 1' during rewinding the preceding coil 1. That is to say, these coils 1 and 1' are rewound and, after a top end of a strip is corrected by a reformer 2 and an end plate part of an on-off gauge or the like is cut off by double-cut shear 3, passed to a welder 5.

15. 发明专利

JPS55133809A ROLLING MILL 失效
公开(公告)号：JPS55133809A
公开(公告)日：1980-10-18
申请号：JP3979579
申请日：1979-04-04
申请人： HITACHI LTD
发明人： FURUYAMA BUNJI , MITSUI HIROMITSU
IPC分类号： B21B31/00 , B21B31/32
摘要： PURPOSE:To make predictable the roll displacement due to the rolling load, and to improve the thickness control, by flattening each of locker plates of the cylinder ram and the lower backup roll chock, and by making the ram to be loosely movable on the slide plane. CONSTITUTION:The locker plates 11A, 11A', attached to the pressure plane of the lower backup roll chock 5 and the reducing plane of the cylinder ram 12, are respectively formed into the flat shape. Besides, in the upper and lower ends of the ram- sliding plane of the bushes 17A, 17A', the gaps respectively increasing upward and downward are formed on purpose to make possible the ram 12 to incline following to the bending of the lower backup roll.

16. 发明专利

JPH04327305A 4-HIGH MILL FOR SKINPASS ROLLING AND ROLLING METHOD 失效
公开(公告)号：JPH04327305A
公开(公告)日：1992-11-16
申请号：JP9672291
申请日：1991-04-26
申请人： HITACHI LTD
发明人： KAJIWARA TOSHIYUKI , MITSUI HIROMITSU , KOBAYASHI YUJIRO
IPC分类号： B21B13/02 , B21B13/14 , B21B27/02 , B21B29/00
摘要： PURPOSE:To make the reduction of the diameter of working roll possible and to drastically enlarge the capacity of shape control while making use of the feature of 2H mill which is suitable in the surface quality of plate in a plate mill, especially a skin-pass mill. CONSTITUTION:Contact with a working roll is cut off by reducing the diameter of a back-up roll 1 in the part corresponding to the width B of plate. The distance Le between supporting points of the working roll is made shorter than that Lw of the 2H mill and the deflection of the working roll is reduced by supporting the working roll on the outsides. Bending effect is enlarged by lengthening the moment arm of working roll bending. The diameter of working roll of this rolling mill is reduced and the controllability of shape is drastically improved. While maintaining the surface quality of plate as with the 2H mill, a prescribed elongation percentage that is previously obtained by 2-3 passes is made possible by one pass by reducing the diameter of the working roll and enlarging the controllability of shape and productivity is drastically improved.

17. 发明专利

JPH0116204B2 失效
公开(公告)号：JPH0116204B2
公开(公告)日：1989-03-23
申请号：JP7777880
申请日：1980-06-11
申请人： HITACHI LTD
发明人： FURUYAMA BUNJI , MITSUI HIROMITSU
IPC分类号： B21B27/00 , B21B28/02

18. 发明专利

JPS60261617A SCALE REMOVING METHOD OF HOT-ROLLED SHEET STEEL 失效
公开(公告)号：JPS60261617A
公开(公告)日：1985-12-24
申请号：JP11797984
申请日：1984-06-08
申请人： HITACHI LTD , NIPPON STEEL CORP
发明人： ITOU MASAHIKO , MIDORIKAWA HEIHACHIROU , MINATO AKIRA , MITSUI HIROMITSU , SUZUKI TAKASHI , IIDA HIROSHI , SAITOU TAKAO , FURUI KIMIHARU
IPC分类号： B21B45/06
摘要： PURPOSE:To improve the productivity, and to reduce the cost of equipment by performing beinding to a hot-rolled sheet steel by giving a tension of a specified elongation percentage, breaking down a scale on the surface of the sheet steel, and thereafter, pickling it. CONSTITUTION:A hot-rolled sheet steel 25 is fed to a scale breaker through an entry bridle roll 15. In the scale breaker 16, the sheet steel 25 is given a tension by the bridle roll 15 and a delivery-side bridle roll 19, and also receives a bending action by a roll group. Accordingly, the sheet steel 25 is subjected to drawing, bending and elongation. Thereafter, its scale is removed partially by sprinkling cooling water by a brush grinding roll 17, and thereafter, the sheet steel 25 passes through the roll 19 and its scale is removed by a pickling tank. According to this method, the scale can be removed in a short time, therefore, a passing speed of a descaling line is improved. Accordingly, the production is improved, also the length of the pickling line is shortened, and the cost of equipment is reduced.

19. 发明专利

JPS59212105A Device for cutting and separating steel strip in double- width rolling mill 失效
标题翻译：双向轧制机切割和分离钢带的装置
公开(公告)号：JPS59212105A
公开(公告)日：1984-12-01
申请号：JP8584683
申请日：1983-05-18
申请人： Hitachi Ltd , Kawasaki Steel Corp
发明人： ETOU KOUJI , SUGANUMA NAMIO , KAMOSHITA TAKASHI , MITSUI HIROMITSU
IPC分类号： B21B1/28 , B21B15/00 , B23D33/00 , B23D15/00
CPC分类号： B21B15/0007 , B21B2015/0021
摘要： PURPOSE:To prevent the side edges of cut and separated steel strip from being broken even when a tension is applied to the strip and to prevent the separated strips from approaching mutually by providing a pair of upper and lower stepped narrow rolls between separated steel strips in double-width rolling. CONSTITUTION:In a double-width rolling installation for cutting and separating in two a wide steel strip 1 after being rolled at the center of its width, a titled device provided with a pair of upper and lower stepped, narrow rolls 6a, 6b is installed between the separated steel strips 1. By using this device, the strip 1 is easily wound up because the side edge parts of cut and separated strip 1 are prevented from being broken even when a tension is applied thereto, and the strips 1 having a distance between them are prevented from approaching with each other.
摘要翻译：目的：为了防止切割和分离的钢带的侧边缘即使在钢带上施加张力也不会断裂，并且通过在分离的钢带之间提供一对上下台阶窄轧辊来防止分离的钢带相互接近双宽轧。构成：在宽幅轧制中的两根宽幅钢带1中进行切割分离的双宽轧制装置中，设置有设置有一对上下台阶状的窄辊6a，6b的标称装置在分离的钢带1之间。通过使用该装置，即使在施加张力时也能够防止切断分离的条带1的侧边缘部分断裂，因此条带1容易卷起，并且条带1具有距离在它们之间被阻止彼此接近。

20. 发明专利

JPS5540082A COLD ROLLING TANDEM ROLLING MILL 失效
公开(公告)号：JPS5540082A
公开(公告)日：1980-03-21
申请号：JP11356878
申请日：1978-09-18
申请人： NIPPON STEEL CORP , HITACHI LTD
发明人： SUGIMOTO HIROSHI , FURUYAMA BUNJI , MITSUI HIROMITSU
IPC分类号： B21B1/28 , B21B33/00
摘要： PURPOSE:To prevent the rear end part form teating off at end open time by arranging that a roll rolling load will not be charged on rolling material end part at end open time providing with an open-close cylinder in a rapid speed that detects the rolling material end part at end open time and operates so as to create a specified gap between rollers. CONSTITUTION:In the condition that in A part of a rapid roll open-close cylinder exclusive for end open time consisting of a ram 16 and a cylinder unit 17, the oil pressure from an oil pressure generating device 25 was sealed, rolling operation of rolling material 1 is carried out. At end open time of the rolling material 1, in formation that two values of the tension value of a tension metal roller 104, that is installed between the previous stand and the rolling load value of a rolling weight weighing meter 36 provided on the previous stand have come to zero is given to a controller 35. Through this command, the controller 35 gives a command for b port operation to direction control valves 26, 27 respectively. With this, the oil pressure is sent to B side of the cylinder unit 17. At the same time, the oil pressure in the A side is connected to a returning oil pipe to be exhausted, and the ram 16 operates rapidly upward.

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