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1. 发明专利

JPH10258319A ROLLER STRAIGHTENING MACHINE 失效
公开(公告)号：JPH10258319A
公开(公告)日：1998-09-29
申请号：JP6318897
申请日：1997-03-17
申请人： HITACHI LTD , NIPPON KOKAN KK
发明人： SEKIYA TERUO , KIMURA TOMOAKI , FUJII YUKIO , KOMATSUBARA MINORU , TOMITA SHOGO , WATANABE MAKOTO
IPC分类号： B21D3/05
摘要： PROBLEM TO BE SOLVED: To remove a residual stress on a radiused part by constituting a lower horizontal roller to vertically move a roller shaft in a vertical direction and a pair of vertical rollers to move in the roller axial direction of a horizontal direction to conduct fine rolling for rediused part of a wide flange shape. SOLUTION: A wide flange shape 11 rolled by a rolling mill is carried into an inlet side table, while a web is brought into contact with #1, #2 horizontal rollers from up/down, a flange part is pressed from outside with a vertical roller 13 arranged to a bearing box of the #2 horizontal roller to be subjected fine rolling. Further, after warp/bending is straightened by #3-#9 horizontal rollers, the wide flange shape is carried out by an outlet side table. At this time, a #0 lower horizontal roller is used to take out straightening reaction of the #3-#19 horizontal rollers. Thus, fine rolling and straightening are simultaneously conducted, improvement of efficiency and productivity are made possible.

2. 发明专利

JPH09108707A MANUFACTURING DEVICE OF T-STEEL 失效
公开(公告)号：JPH09108707A
公开(公告)日：1997-04-28
申请号：JP27250295
申请日：1995-10-20
申请人： NIPPON KOKAN KK
发明人： TOMITA SHOGO , MIYASATO TOSHIO , FUJITA YONEAKI , WATANABE MAKOTO , MORISANE TORU , KOMATSUBARA MINORU , FUJII YUKIO , OMORI KIYOO
IPC分类号： B21B15/00 , B21B1/08 , B21B1/092 , B21C37/00 , B21D3/05
摘要： PROBLEM TO BE SOLVED: To reduce the number of processes and the period of production so as to make a T-steel efficiently by decreasing residual stress of an H-steel, applying web cutting or preliminary working to it, correcting its shape vertically and horizontally, and thereby securing the post-cutting straightness of T-steel. SOLUTION: A light screw-down type universal rolling mill 10 removes residual stress while rolling down the root of the web of an H-steel 1 through the reduction by its vertical roll 12, and also cuts the web by the pre-working roll. A roller straightener 20, performing repeated bend and left/right bend by the upper and lower rolls while pinching the web and flange by the horizontal rolls 21, 22 and the vertical roll 23, cuts the web, straightens the T-steel thus cut to produce a cut T-steel. In addition, with the purpose of fully demonstrating this effect, the light screw-down type universal rolling mill 10 is equipped with a driving unit 15 and a reduction gear 16, as is the roller straightener 20 with a driving unit 25 and a reduction gear 26, so that both driving units 15, 25 are properly controlled.

3. 发明专利

JPH0871891A PLATELIKE OBJECT TEACHING METHOD BY GRINDING DEVICE 失效
公开(公告)号：JPH0871891A
公开(公告)日：1996-03-19
申请号：JP23401994
申请日：1994-09-02
申请人： NIPPON KOKAN KK
发明人： NISHIYAMA NOBORU , TSUCHIYA HIROAKI , KOMATSUBARA MINORU
IPC分类号： B23Q17/24 , B24B49/12
摘要： PURPOSE: To perform efficient grinding work by teaching the position of a platelike object to be ground to a grinding device. CONSTITUTION: Boundary positions P and S between a steel plate 1 and the ground can be detected by moving a sensor 6, while measuring the height from the ground to a tool 5 by the sensor 6 attached to a grinding robot 2, to pass one side AD of a rectangular steel plate l two times to detect a position where the height of the tool 5 is changed by the plate thickness of the plate 1 when the sensor 6 passes the side AD. Then the sensor 6 is made to pass a side AB two times in a direction nearly orthogonal to the pass direction of the side AD to detect boundary positions P' and S'. After that, the cross point between the extended lines of the straight line connecting the P and the S and the straight line connecting the P' and the S' is detected to detect the position of one point (point A) in four corners of the steel plate 1. Finally, positions of three remaining points (points A, B, and C) are estimated by performing operation by using a detected value and the short and long side lengths of the steel plate l previously memorized.

4. 发明专利

JPH09248628A ROLLER STRAIGHTENING MACHINE WITH AUTOMATIC ZERO-POINT ADJUSTING SYSTEM 失效
公开(公告)号：JPH09248628A
公开(公告)日：1997-09-22
申请号：JP5790696
申请日：1996-03-14
申请人： HITACHI LTD , NIPPON KOKAN KK
发明人： KIMURA TOMOAKI , SEKIYA TERUO , FUJII YUKIO , KOMATSUBARA MINORU , TOMITA SHOGO , WATANABE MAKOTO
IPC分类号： B21D3/05 , H01S3/00
摘要： PROBLEM TO BE SOLVED: To improve positional precision of a roller by emitting and receiving a beam on the passing line of a bar stock as a reference for setting a roller, positioning plural rollers on the basis of the beam, and thereby effectively aligning plural rollers precisely. SOLUTION: A floodlamp 54 and a light receiver 55 using a laser beam are provided on the entrance and the exit side of a stand 1. With the entire roller shaft moved from the lower to upper part by a motor, the position where the reference part crosses the laser beam becomes the reference position of a position measuring apparatus for the four lines of straightening rollers. The reference position of each position detector is stored in a control panel. Rolling reduction is calculated for each straightening roller based on the reference position, with only the necessary part manipulated by an actuator, thus setting positions of each straightening roller.

5. 发明专利

JPH0985343A METHOD AND EQUIPMENT FOR ROLLER-STRAIGHTENING WIDE FLANGE BEAM 失效
公开(公告)号：JPH0985343A
公开(公告)日：1997-03-31
申请号：JP24283595
申请日：1995-09-21
申请人： NIPPON KOKAN KK
发明人： TOMITA SHOGO , MIYASATO TOSHIO , FUJITA YONEAKI , WATANABE MAKOTO , MORISANE TORU , KOMATSUBARA MINORU
IPC分类号： B21D3/05
摘要： PROBLEM TO BE SOLVED: To provide the method and device for straightening a wide flange beam capable of straightening even the large wide flange beam of small web thickness. SOLUTION: Repeated straightening of bending is performed by rolling down a web of a wide flange beam 1 by horizontal rolls 10 which are alternately provided in the vertical direction along the advancing direction of the wide flange beam 1, each side face of the flange of the wide flange beam 1 is rolled down by vertical rolls 11, and the web of the wide flange beam 1 is pressed by opposite horizontal rolls 12 arranged opposite to the horizontal rolls 10. Localized contact of the horizontal rolls 10 with a fillet part of the wide flange beam 1 is prevented, and the contact distributed load is leveled. The change in the web height can be suppressed, and straightening without fillet cracking can be realized.

6. 发明专利

JPH07156055A AUTOMATIC GRINDING DEVICE FOR SURFACE FLAW OF STEEL PLATE 失效
公开(公告)号：JPH07156055A
公开(公告)日：1995-06-20
申请号：JP32308093
申请日：1993-11-29
申请人： NIPPON KOKAN KK
发明人： HINA SUSUMU , KOMATSUBARA MINORU , TSUCHIYA HIROAKI , NISHIYAMA NOBORU
IPC分类号： B24B27/033
摘要： PURPOSE:To remove surface flaws on a steel plate completely without nonuniformity and omission of grinding work, by providing a drive controller which operates a grinding robot, based on signals from a data processing device, which processes the signals from a picture processing device, a distance detector, a flaw detector, and a speed measuring instrument. CONSTITUTION:A first distance detector measures the phase of a steel plate. Next, a flaw detecting device 14 moves in the longitudinal direction of the steel plate, and a picture processing device 13 detects both position and depth of the surface flaw. These signals are sent to a data processing device 9 to be processed there, and the signal from the device 9 is sent to a driving controller 10. Based on the signals from this driving controller 10, a grinding robot 7 starts grinding according to a specific pattern. The diameter of the grinding stone is constantly watched by a second distance detector n order to control the number or revolutions of the grinding stone according to a change in the stone diameter. In addition, the peripheral speed of a grinding stone 18, which rotates at the time of grinding, is measured by a speed measuring instrument in order to control a variable speed motor, or a driving source of the grinding stone. With this design, the peripheral speed of the grinding stone is constantly controlled so as to obtain the constant quantity of grinding, regardless of wear of the grinding stone.

7. 发明专利

JPH06142568A MOBILE COATING MACHINE FOR HEAVY-DUTY ANTICORROSION COAT OF STEEL PILE 失效
公开(公告)号：JPH06142568A
公开(公告)日：1994-05-24
申请号：JP32630292
申请日：1992-11-12
申请人： NIPPON KOKAN KK , OOUERU KK
发明人： SAN SABURO , KOMATSUBARA MINORU , TOKAWA MASAKI
IPC分类号： B05B13/04
摘要： PURPOSE:To conduct automatically all coating work in a place in which steel piles are preserved, in such a condition as they are preserved. CONSTITUTION:A machine is equipped with: a circular arc frame 1a having an opening 10 which is oriented downward; an ejector 2 which moves along the frame 1a and has a jet nozzle 20 movable forward and backward; a support frame 3 which supports the frame 1a and can move freely with a moving means attached; and an elevator 4 which supports the frame 3 at its bottom to elevate it and adjusts its horizontal position.

8. 发明专利

JP2991066B2 失效
公开(公告)号：JP2991066B2
公开(公告)日：1999-12-20
申请号：JP32691994
申请日：1994-12-28
申请人： NIPPON KOKAN KK
发明人： TOMITA SHOGO , MYASATO TOSHIO , FUJITA YONEAKI , MAKINOHARA MISAO , MATSUOKA JUJI , NAGAHASHI SHINICHI , WATANABE ATSUSHI , KOMATSUBARA MINORU
IPC分类号： B21D3/05

9. 发明专利

JPH09248627A ROLLER STRAIGHTENING MACHINE FOR BAR STOCK 失效
公开(公告)号：JPH09248627A
公开(公告)日：1997-09-22
申请号：JP5728996
申请日：1996-03-14
申请人： HITACHI LTD , NIPPON KOKAN KK
发明人： KIMURA TOMOAKI , SEKIYA TERUO , FUJII YUKIO , KOMATSUBARA MINORU , TOMITA SHOGO , WATANABE MAKOTO
IPC分类号： B21D3/05
摘要： PROBLEM TO BE SOLVED: To repeatedly bend a bar stock even in a horizontal plane with a simple structure, to cope with various dimensional change of the bar stock, and to provide excellent correction accuracy and quality. SOLUTION: Correction rollers 2, 3 are fitted to a roller shaft 23 through sleeves 21, 22. The correction roller 2 is held at the position in the axial direction of the roller relative to a bearing box 4, while the correction roller 3 is advanced/retracted to/from the bearing box 4 in the axial direction by the effect of a motor, a worm wheel 38, and a screw 37. The clearance between the correction rollers 2, 3 is adjusted. The bearing boxes 4, 5 are fixed to a slider, and a roller assembly is moved in the axial direction of the roller as the slider is moved by a motor and a worm reduction gear.

10. 发明专利

JPH09206818A METHOD FOR COOLING SHAPE AND DEVICE THEREFOR 失效
公开(公告)号：JPH09206818A
公开(公告)日：1997-08-12
申请号：JP1530996
申请日：1996-01-31
申请人： NIPPON KOKAN KK
发明人： FUJIBAYASHI TERUO , NAKASEKO MAKOTO , WATANABE MAKOTO , KATAOKA NAOKI , KOMATSUBARA MINORU
IPC分类号： B21B45/02 , C21D9/00
摘要： PROBLEM TO BE SOLVED: To reduce interference between spray nozzles which are arranged in multistage at the time of changing the width of flanges of shapes and to execute uniform cooling without difference in level in the height direction of flanges even when the vertical intervals between the nozzles are varied. SOLUTION: At the time of cooling the outside surfaces 3 of a shape 1 by jetting cooling water from the spray nozzles 7 which are vertically arranged at least in two stages, the cooling water jetted from the spray nozzles 7 is passed through dispersing plates 12 and also the overlapped parts of the lower ends of colliding positions against the outside surfaces of the flanges 3 of the cooling water from the spray nozzles 7 of the upper stage and the upper ends of colliding positions against the outside surfaces of the flanges 3 of the cooling water from the spray nozzles 7 of the lower stage are defined as over 0 and 25mm or less.

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