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1. 发明专利

JPH08187501A ROLLING METHOD FOR BAR STEEL 失效
公开(公告)号：JPH08187501A
公开(公告)日：1996-07-23
申请号：JP32856494
申请日：1994-12-28
申请人： KAWASAKI STEEL CO
发明人： TAKEDA SATORU , KINDO HIDENORI , SAKURAI TOMOYASU
IPC分类号： B21B1/18 , B21B1/16 , B21B13/10 , B21B37/00 , B21B37/48
摘要： PURPOSE: To provide the rolling method for a bar steel small in the rate of width change and diameter difference by setting inter-stand tension between 4-roll rolling mills on a compressive side and executing continuous rolling while imparting compressive stress in the axial direction to the bar steel. CONSTITUTION: When free tension rolling is executed by use of a free tension controller(FTC), a spreading rate is changed to the negative direction and narrowing is increased as the reduction of area is increased. However, by imparting the compressive stress to the bar steel by adjusting the rotational speed of the driving motor of a 1st stand mill so as to be slightly faster than that of the 2nd stand mill, the width variation of the bar steel is increased in the spreading direction in accordance with the increase of the compressive stress. By adjusting this compressive stress to be imparted to 0.05-0.30kg/mm , the spreading change is decreased and the bar steel high in dimensional precision is obtained.

2. 发明专利

JPH08150403A METHOD FOR SETTING SHAFT SHIFTING AMOUNT OF 4-ROLL ROLLING MILL 失效
公开(公告)号：JPH08150403A
公开(公告)日：1996-06-11
申请号：JP7638495
申请日：1995-03-31
申请人： KAWASAKI STEEL CO
发明人： KANO AKIRA , OMORI KAZUO , SETO TSUNEO , KINDO HIDENORI , TAKEDA SATORU
IPC分类号： B21B13/12 , B21B1/16 , B21B37/00
摘要： PURPOSE: To provide a setting method of an optimum shaft shifting amount of a 4-roll rolling mill in which a diameter of a base stock is preliminarily taken into consideration and by which good sizing accuracy and biting property are obtained. CONSTITUTION: At the time of finishing by rolling in the hot rolling of wire rods and steel bars, two 4-roll rolling mills which have a pair of driving rolls 1A, 1B and a pair of non-driven rolls 1C, 1D with which a base stock is screwed down in two orthogonal directions are used. The shaft shifting amount (offset amount) L onto the downstream side of the nondriven rolls to the driving rolls of the 4-roll rolling mill of a 1st stand is set to

3. 发明专利

JPH0871801A CUTTING METHOD OF ROLLER FOR MULTIPLE ROLLER TYPE ROLLING MILL AND DEVICE THEREFOR 失效
公开(公告)号：JPH0871801A
公开(公告)日：1996-03-19
申请号：JP16338295
申请日：1995-06-29
申请人： KAWASAKI STEEL CO
发明人： TAKEDA SATORU , KINDO HIDENORI , SHINKAI YOSHIHIRO , HOASHI YUKIHIRO
IPC分类号： B23B5/10
摘要： PURPOSE: To provide a method and a device that can cut each roller of a multiple roller type rolling mill in the state of the roller being fitted to the rolling mill. CONSTITUTION: In a multiple roller type rolling mill 1 forming a path line in the mutually close state of the respective outer peripheral surface of plural rollers 3 with hole dies formed at the outer peripheral surface, the rolling mill 1 with the reference face 12 provided on the outer surface, in a fixed position from the path line 2 is removed from a rolling line and fixed. A contact sensor 14 provided in a fixed position from the cutting tool 13 of a cutter 8 movable in three-dimensional directions (longitudinal, lateral and vertical directions) is brought into contact with the reference face 12 (and the roller end face) to set a machining reference point, and the hole die of each roller is cut by the cutting tool 13.

4. 发明专利

JPH06335710A FOUR-ROLL ROLLING MILL AND ROLL CHANGING METHOD 失效
公开(公告)号：JPH06335710A
公开(公告)日：1994-12-06
申请号：JP12374693
申请日：1993-05-26
申请人： KAWASAKI STEEL CO , SUMITOMO HEAVY INDUSTRIES
发明人： TAKEDA SATORU , KINDO HIDENORI , SAKAMOTO TOSHIO , YAMANAKA EISUKE , KUNIDA NORIO , TANGE TAKESHI , YAMAZAKI MASATO
IPC分类号： B21B13/10 , B21B31/08
摘要： PURPOSE:To safely and easily execute the roll exchange by handling the combination of a roll and shaft separately from the main body of the rolling mill. CONSTITUTION:The rolling device is composed of a base block 1 on which a rolling hole 4 and roll holes 5 provided on the top and bottom and the right and left sides are provided and four roll blocks 2 which are assembled freely attachably and detachably to the base block 1 by positioning the peripheral surfaces 8 of assembled rolls 3 in the roll holes 5. Change of the rolls 3 is is integrally executed together with the roll block 2 and the substantial change of the rolls 3 is achieved between the rolls and a roll block 2.

5. 发明专利

JPH04228219A WATER DRAINING NOZZLE FOR BAR 失效
公开(公告)号：JPH04228219A
公开(公告)日：1992-08-18
申请号：JP40845890
申请日：1990-12-27
申请人： KAWASAKI STEEL CO
发明人： OGAWA TAKAYA , KINDO HIDENORI , HATANAKA ATSUSHI
IPC分类号： B21B45/02
摘要： PURPOSE:To completely drain water from the exterior peripheries of a bar by using compressed air for draining and preventing the splashing of water to the utmost. CONSTITUTION:A pressure accumulating chamber 3 is constructed with an interior cylinder part 1 and an exterior cylinder part 2, and a slit opening C is formed with the end face of the interior cylinder part 1 and that of a short pipe part 4. Then, the inclined angle theta of the slit opening C is set at 45 deg.C-60 deg.C, and simultaneously the length H of the parallel part of the opening against the width (t) of the opening is set at H=2t or more. In addition, the position of an intake hole 6 against the inner diameter D of the interior cylinder part 1 is set at L=1/2D or more.

6. 发明专利

JPH1147804A METHOD FOR ROLLING SPECIAL SHAPED STEEL BAR 失效
公开(公告)号：JPH1147804A
公开(公告)日：1999-02-23
申请号：JP20172997
申请日：1997-07-28
申请人： KAWASAKI STEEL CO
发明人： TAKEDA SATORU , KINDO HIDENORI
IPC分类号： B21H8/00 , B21B1/16
摘要： PROBLEM TO BE SOLVED: To provide a rolling method for obtaining a special shaped steel bar having extremely high dimensional accuracy by satisfying the degree of fullness in the nodal grooves of a roll and simultaneously preventing excessive over-filling in the outside diameter of ribs. SOLUTION: At the time of forming nodes 2 on the surface of a material S to be rolled having approximately round cross-sectional shape with the nodal grooves 7 which are formed at prescribed intervals in the circumferential direction of the grooves of the rolls R1 -R7 of a four-roll rolling mill arranged in at least the final finishing mill of a continuous rolling mill for wires and rods, tension of 0.2-1.2 kgf/mm is imparted to the material S to be rolled between the four-roll rolling mill and the rolling mill just before it. By this impartation of tension, the dimension L3 of the outside diameter of a ribs 3 in four places of the circumference which are formed on the surface of the material S to be rolled by over filling in the clearances with an adjacent roll of the four-roll rolling mill is adjusted.

7. 发明专利

JPH09192709A METHOD FOR GRINDING ROLL OF FOUR-ROLL MILL, FOUR-ROLL MILL AND ROLL CUTTING EQUIPMENT USED IN THE SAME METHOD 失效
公开(公告)号：JPH09192709A
公开(公告)日：1997-07-29
申请号：JP1721196
申请日：1996-01-06
申请人： SUMITOMO HEAVY INDUSTRIES , KAWASAKI STEEL CO
发明人： KUNIDA NORIO , KOMIYA TAKAHIRO , KINDO HIDENORI , TAKEDA SATORU
IPC分类号： B21B28/02 , B21B13/10
摘要： PROBLEM TO BE SOLVED: To provide a simple and sure method by which a roll is rotated for grinding even when the roll is a nondriven roll without a driving shaft. SOLUTION: When the driving rolls 1, 1 of a four-roll mill are cut, by connecting the roll driving shafts of a roll driving device to the driving shafts 5 of the driven rolls, the driven rolls 1, 1 are rotated and the surfaces of the rolls are cut with cutting machine. When the nondriven rolls 2, 2 are cut, driving gears of the roll driving devices are engaged with driven gears 16 on the side faces of the nondriven rolls 2, 2, the non-driven rolls 2, 2 are rotated by revolving the driving gears and the roll surfaces are cut with the cutting machine. The driving gear is projected from one end of a gear box which is mounted in a slide unit.

8. 发明专利

JPH0994701A CALIBER ROLL CUTTING METHOD IN MULTI-ROLL TYPE MILL 失效
公开(公告)号：JPH0994701A
公开(公告)日：1997-04-08
申请号：JP25308795
申请日：1995-09-29
申请人： KAWASAKI STEEL CO
发明人： TAKEDA SATORU , KINDO HIDENORI
IPC分类号： B23B5/08 , B21B27/00 , B23Q15/00
摘要： PROBLEM TO BE SOLVED: To provide a method for cutting a caliber roll with plural rolls fitted to a mill. SOLUTION: In cutting a caliber groove on the circumference of a caliber roll, by using the cutting tool 6 of a roll cutting machine 4 incorporating a three-dimensional coordinate operation device in a condition with four caliber rolls R1, R2, R3, and R4 incorporated into a housing 3, the three-dimensional coordinates of the caliber cores of the caliber rolls R1-R4 are previously acknowledged as a reference coordinate, and then the three-dimensional positions of the caliber rolls R1-R4 are measured by a position sensor 12, having a reference point on the roll cutting machine 4 side to memorize an actual coordinate to correct the slippage between the actual and reference coordinates, thereby controlling the position of the cutting tool 6.

9. 发明专利

JPH08229609A METHOD FOR GUIDING BAR STEEL AND DEVICE THEREFOR 失效
公开(公告)号：JPH08229609A
公开(公告)日：1996-09-10
申请号：JP19543695
申请日：1995-07-31
申请人： KAWASAKI STEEL CO
发明人： TAKEDA SATORU , KINDO HIDENORI , HOASHI YUKIHIRO
IPC分类号： B21B23/00 , B21B1/16 , B21B39/14 , B21B39/16
摘要： PURPOSE: To provide a method and device for guiding bar steel on the inlet side of the rolls of a multi-roll mill by which variation in the dimension of the diameter of the bar steel which is entered between guide rollers is automatically dealed, adjustment of the roller gap between the guide rollers is unnecessitated and its structure is simplified. CONSTITUTION: With the guide rollers 14, 14' of a guide device which is provided with a pair of guide rollers 14, 14' for clamping the bar steel, a pair of roller holders 13, 13' for supporting so that the guide rollers so as to be freely opened and closed and springs 21, 21' for energizing the roller holders in the closing direction, the bar steel is elastically held with the pressing force of 100-500kg and the gap between the guide rollers is automatically changed in accordance with the variation in the size of diameter of the bar steel which is entered. By adjusting tension of the springs 21, 21' by a spring length adjusting means 20, the pressing force to the bar steel is adjustable within this range.

10. 发明专利

JPH07323302A METHOD FOR ROLLING DEFORMED BAR 失效
公开(公告)号：JPH07323302A
公开(公告)日：1995-12-12
申请号：JP11906794
申请日：1994-05-31
申请人： KAWASAKI STEEL CO
发明人： TAKEDA SATORU , KINDO HIDENORI , YAMANAKA EISUKE
IPC分类号： B21B13/10 , B21B1/16 , B21H8/00
摘要： PURPOSE:To obtain a deformed bar having the height of node satisfying a prescribed standard by rolling with the same finishing rolls even when the diameter is different by reducing a base stock from orthoganally crossed directions by two pairs of four rolls provided with peripheral grooves and nodal grooves at the time of forming nodes on the peripheral surface of the base stock by the nodal grooves which are formed in the peripheral grooves on the periphery of roll. CONSTITUTION:In the final finishing pass, the base stock is reduced from the two orthoganally crossed directions by two pairs of four rolls R1-R4 provided with the peripheral grooves and nodal grooves. Then, when the deformed bars having different diameters are rolled by the same finishing rolls, roll gaps H11, H12 in two orthoganally crossed directions are respectively changeable into the roll gaps H21, H22 in accordance with the diameter of bar. In this way, since the height of node is controlled by two orthoganally crossed directions, the nodes having uniform height in the whole of the peripheral direction are formed, so that the deformed bar which satisfies the prescribed standard about the height of node is obtained by rolling with the same finishing rolls, even when the diameter is different.

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