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1. 发明专利

JPS58116930A COIL CAR 失效
公开(公告)号：JPS58116930A
公开(公告)日：1983-07-12
申请号：JP21393181
申请日：1981-12-29
申请人： ISHIKAWAJIMA HARIMA HEAVY IND , NIPPON KOKAN KK
发明人： NAKAMURA MASAYUKI , SATOU HIROYUKI , SATOU RIYOUJI , IMAI TATSUO , NOGUCHI HARUHIRO , IDA MICHIHIKO , KUROSAWA TOSHIYUKI
IPC分类号： B21C47/24 , B65H19/12
摘要： PURPOSE:To supply band plates to a shifting truck keeping the attitude of supply always in a state of face up by providing a rotatable coil holding device in the upper part of a coil car of inlet side of a rolling line. CONSTITUTION:In a band plate supply line of electric welded tube manufacturing device etc., a coil car is run toward a shifting truck installed in the inlet side of a leveler. The coil car 11 is made up of a bottom coil car 17 and a top coil car 18. A vertically moving frame 28 is fitted to the body 25 of the top coil car, and a coil holding device 31 is mounted on the vertically moving frame 28 allowing rotation. The arm 32 of the holding device 31 is revolved by expansion and contraction of a cylinder 36, and a holding lever 37 is opened and closed by expansion and contraction of a cylinder 28 to hold the coil 7. The holding device 31 is rotated according to the direction of winding by driving the bottom coil car 17 and the cylinder 36, and the coil 7 is loaded to the mandrel of the shifting truck keeping the coil always in the state of face up.

2. 发明专利

JPH0631313A EXCHANGING DEVICE FOR HOUSING OF STRETCH REDUCER 失效
公开(公告)号：JPH0631313A
公开(公告)日：1994-02-08
申请号：JP20848892
申请日：1992-07-13
申请人： ISHIKAWAJIMA HARIMA HEAVY IND , NIPPON KOKAN KK
发明人： IMAI TATSUO , TODO KUNIO , KUROSAWA TOSHIYUKI , SHIBUTA TSUTOMU
IPC分类号： B21B17/14 , B21B31/08
摘要： PURPOSE:To exchange a housing in a short time by providing a housing exchanging truck with which many housings which are clamped with a housing supporting table and housing clamp are lifted and moved between the position on the line and housing exchanging stations. CONSTITUTION:The housing supporting table 21 on which many housings 4 for stretch reducer which is provided with rolls 9 for reducing a tube 8 can be supported in the line direction (20) is provided. A housing clamp 36 with which the upper parts of the many housings 4 which are supported on the housing supporting table 21 are restrained at once and the housing exchanging truck 35 with which the many housings 4 which are clamped with the housing supporting table 21 and housing clamp 36 are lifted and moved between the position on the line and the housing exchanging stations 32, 33 are provided.

3. 发明专利

JPS58116929A UNCOILING DEVICE 失效
公开(公告)号：JPS58116929A
公开(公告)日：1983-07-12
申请号：JP21393081
申请日：1981-12-29
申请人： ISHIKAWAJIMA HARIMA HEAVY IND , NIPPON KOKAN KK
发明人： IMAI TATSUO , NAKAMURA MASAYUKI , SATOU HIROYUKI , SATOU RIYOUJI , NOGUCHI HARUHIRO , IDA MICHIHIKO , KUROSAWA TOSHIYUKI
IPC分类号： B21C47/16 , B21C47/24
摘要： PURPOSE:To shorten time required for coil rewinding by providing a shifting truck in the inlet side of a band plate supply line and installing two series of mandrels, coil openers, pinch rolls etc. that rewinds the coil on the truck. CONSTITUTION:A shifting truck 5 that moves at right angles to a band plate supply line L is installed in the inlet side of a leveller 1 provided on the band steel supply line of an electro-unite tube manufacturing device etc. Pinch rolls 6a, 6b that guide the band plate to the leveler 1, coil openers 8a, 8b that rewind the coil 7, and mandrels 9a, 9b that load and hold the coil 7 are installed on the shifting truck facing each other to form two systems of rewinding mechanisms. The mandrels 9a, 9b are brought close and separated in the direction at right angles to the line L by expansion and contraction of cylinders 10a, 10b. The coil 7 is loaded successively to the both sids rewinding mechanisms, and the band plate is supplied to the line L alternately.

4. 发明专利

JPH05337731A 失效
公开(公告)号：JPH05337731A
公开(公告)日：1993-12-21
申请号：JP14076192
申请日：1992-06-01
申请人： ISHIKAWAJIMA HARIMA HEAVY IND , NIPPON KOKAN KK
发明人： IMAI TATSUO , KUROSAWA TOSHIYUKI , SHIBUTA TSUTOMU , TODO KUNIO
IPC分类号： B23D45/12 , B23D47/04
摘要： PURPOSE:To shorten the working time in making a cam wheel itself automatically changeable in conformity with size of a pipe to be cut off by installing a cam wheel rearranging device for changing the cam wheel. CONSTITUTION:This equipment is provided with a cutting device body A made up of connecting a cam wheel 11, fitted with a pipe guide 12 supporting a pipe 13, to its rotative driver 14 free of detachment by a connecting mechanism 20, and a cam wheel rearranging device B for changing this cam wheel 11, respectively. This cam wheel rearranging device B consists of a holding mechanism for holding the cam wheel 11, a detachable mechanism 50 for operating the connecting mechanism, and a conveying mechanism for conveying the gripped cam wheel. Therefore, in conformity with each size of the pipe 13 to be cut, this cam wheel 11 itself can be automatically changed by the rearranging device B.

5. 发明专利

JPS58110125A COIL CAR 失效
公开(公告)号：JPS58110125A
公开(公告)日：1983-06-30
申请号：JP20861481
申请日：1981-12-23
申请人： ISHIKAWAJIMA HARIMA HEAVY IND , NIPPON KOKAN KK
发明人： IMAI TATSUO , NAKAMURA MASAYUKI , SATOU HIROYUKI , SATOU RIYOUJI , NOGUCHI HARUHIRO , IDA MICHIHIKO , KUROSAWA TOSHIYUKI
IPC分类号： B21C47/24 , B65H19/12
摘要： PURPOSE:To increase the degree of freedom of the arrangement of a band plate feeding line in a coil car by travelling the coil car to carry a band-like coil in entering equipment for the band plate feeding line in the two directions, i.e. the same and rectangular directions to said line. CONSTITUTION:The coil car 11 is tranvelled on rails 15, 15 in the rectangular direction to said line by driving a travelling motor 23 of a bottom coil car 17 to receive a coil 7 carried by an unloader 14 through crane and pull out the coil 7 by gripping levers 37, 37. The car 11 gripping the coil 7 is returned on he rails 15, 15 and stopped on a position where the rails 24, 24 of the car 17 concide with the rails of a shifting truck 5. Subsequently a top coil car 18 is transferred from the rails 24, 24 to said rails 12, 12 by driving a travelling motor 26 and stopped between mandrels 9a, 9b. A cylinder 10a is extended and the mandrel 9a is inserted into the center of the coil 7 to fit the coil 7 to the mandrel 9a.

6. 发明专利

JPS58107215A COIL OPENER 失效
公开(公告)号：JPS58107215A
公开(公告)日：1983-06-25
申请号：JP20744781
申请日：1981-12-22
申请人： ISHIKAWAJIMA HARIMA HEAVY IND , NIPPON KOKAN KK
发明人： IMAI TATSUO , NAKAMURA MASAYUKI , NOGUCHI HARUHIRO , IDA MICHIHIKO , KUROSAWA TOSHIYUKI
IPC分类号： B21C37/08 , B21C37/083 , B21C47/18 , B21C47/34 , B65H16/06 , C21D9/68
摘要： PURPOSE:To pass an up drawing coil and down drawing coil through pinch rolls smoothly by providing rolls that rotate the coil and rolls that correct the tip of the coil in the upper and lower arms supported allowing free rotation in radial direction of the coil. CONSTITUTION:A peeler 5 is moved forward while being tilted upward by operation of cylinders 21, 23, and kept in a state shown by A. An upper arm 6 is turned to a specified position by operation of a cylinder 15, and a snubber roll 9 is brought into contact with the outer periphery of a coil 2, and the coil 2 is rotated in the direction of the arrow X by driving a motor 13. After releasing a tip part 2a from the outer peripheral face of the coil 2, by the peeler 5, warping of opposite direction is given to the tip 2a of the coil by the action of a nip bending roll 11, and passed smoothly through pinch rolls 3. In the case of down drawing coil, the peeler is tilted downward and kept at a position shown by B. A lower arm is turned, and the snubber roll 10 is brought into contact with the coil 2, and the coil 2 is rotated in the direction of the arrow Y.

7. 发明专利

JP2001047108A METHOD FOR DRAWING METALLIC TUBE WITH THREE ROLLS 失效
公开(公告)号：JP2001047108A
公开(公告)日：2001-02-20
申请号：JP2000221859
申请日：2000-07-24
申请人： NIPPON KOKAN KK
发明人： YABUMOTO SATORU , OMORI KATSUMI , KUROSAWA TOSHIYUKI , IKEDA YUKIHIRO , SUGIMOTO YUJI , TODO KUNIO
IPC分类号： B21B17/14
摘要： PROBLEM TO BE SOLVED: To reduce inside angularity in a circumferential direction of a product and to improve thickness ununiformity rate by arranging each roll stand with a specified angular displacement in the circumferential direction of a rolling pass line. SOLUTION: This method is a method for drawing metallic tubes with three rolls by which plural roll stands are continuously arranged and three rolls are arranged at intervals of 120 deg. in the circumferential direction around the rolling pass line of each roll stand and the rolls of the roll stand are arranged with the angular displacement of the multiple of 9-15 deg. on a plane orthogonally crossed with the rolling pass line. These arranged roll stands are divided into an arbitrary number of pairs, the angular displacement in the pair is defined as 60 deg. and the angular displacement of the adjacent pairs as >=30 deg.. Besides, when this cycle in which the angular displacement in the pair is defined as 60 deg. and the angular displacement between the adjacent pairs as >=30 deg. is repeated in two or more cycles, because twist of the tube is mitigated, in the whole region of the roll stands having large working quality by rolling, the thickness ununiformity is furthermore improved.

8. 发明专利

JPH0557839A COVER METAL MEMBER 失效
公开(公告)号：JPH0557839A
公开(公告)日：1993-03-09
申请号：JP21858591
申请日：1991-08-29
申请人： NIPPON KOKAN KK
发明人： NAGASAKA HIDEYA , ADACHI TAKEO , KUROSAWA TOSHIYUKI
IPC分类号： B32B27/20 , B32B15/08 , B32B15/085
摘要： PURPOSE:To reduce the consumption of covering polyolefin and contrive to improve efficiency by a method wherein polyolefin layer consists of first polyolefin layer prepared by mixing and kneading pigments, the mixing ratio of which is constant irrespective of color to bring out, and specified second polyolefin layer prepared by mixing 3nd kneading pigments, the mixing ratio of which is controlled in accordance with the color to bring out. CONSTITUTION:As the colored polyolefin layer coveringly formed on the surface of metal pipe 1, first polyolefin layer 15 prepared by mixing and kneading pigments, the mixing ratio of which is constant irrespective of color to bring out, and second polyolefin layer 14, in which the pigment concentrations are controlled within the range of 0.5-3.0wt.% and, at the same time, the covering coating thickness of which is set to be 5-30% of the total thickness, are equipped. When coloring is changed, only the changing operation of the second polyolefin layer 14 is performed, resulting in reducing the amount of resin to be discharged and suppressing the lowering of efficiency.

9. 发明专利

JPH04303622A INNER AND OUTER SURFACE SIMULTANEOUSLY LINING METHOD OF POLYVINYL CHLORIDE-LINED STEEL PIPE 失效
公开(公告)号：JPH04303622A
公开(公告)日：1992-10-27
申请号：JP9365391
申请日：1991-03-30
申请人： NIPPON KOKAN KK
发明人： KUROSAWA TOSHIYUKI , ADACHI TAKEO , SUZUKI MASAYUKI
IPC分类号： B29C63/34 , B29C63/42 , B29K27/06 , B29K105/02 , B29L9/00
摘要： PURPOSE:To obtain high quality steel pipe, both the inner and the outer surfaces of which are simultaneously lined with polyvinyl chloride by a method wherein the end of the steel pipe is shifted to its predetermined rough cutting position so as to cut off the extensions over the end of steel pipe of the inner surface and outer surface polyvinyl chloride pipes leaving the predetermined excess lengths in order to cut off said excess lengths under the condition that the steel pipe is aligned. CONSTITUTION:With a pusher 28, which is driven by means of a pusher driving circuit 29 connected to a CPU, steel pipe 21 is pushed leftwards so as to bring its end below a grindstone saw 27. The aligning of the steel pipe 21 is performed under the condition that outer surface polyvinyl chloride pipe 22 and inner surface polyvinyl chloride pipe 23 respectively have somewhat excess lengths. After the aligning, the grindstone saw 27 is lowered by means of a grindstone saw driving circuit 30 connected to the CPU so as to rough-cut the outer surface polyvinyl chloride pipe 22 and the inner surface polyvinyl chloride pipe 23. Next, the steel pipe 21 is fed to a pipe end polishing section 31 so as to be placed on alignment rollers 32. The excess length parts of the outer surface polyvinyl chloride pipe 22 and of the inner surface polyvinyl chloride pipe 23 are shifted leftwards as being aligned so as to polish the excess length parts until the end of the steel pipe 21 abuts against a belt sander 33.

10. 发明专利

JPH03162930A APPARATUS FOR INSERTING SYNTHETIC RESIN PIPE INTO STEEL PIPE 失效
公开(公告)号：JPH03162930A
公开(公告)日：1991-07-12
申请号：JP4809190
申请日：1990-02-28
申请人： NIPPON KOKAN KK
发明人： MITSUYOSHI KATSUHIKO , KUROSAWA TOSHIYUKI , SUZUKI MASAYUKI , TAKAI AKIO
IPC分类号： B29C63/34
摘要： PURPOSE:To perform insertion correctly and promptly and make labor saving and high efficiency in the work by grasping steel pipes and guiding simultaneously synthetic resin pipes thereinto and by the use of guides for loose insertion. CONSTITUTION:Steel pipes A are mounted on a lower guide 1 and fixed thereon by means of a magnet 3. The top ends of vinyl chloride pipes B are guided through the tapered guide surface 1a, 2a of guides 1, 2 by means of a pusher 6 on lower delivery rolls 5 and transported by the pusher up to the position where the top end thereof comes near to the steel pipes A. In the next place, the upper guide 2 is pressed to the upper surfaces of the steel pipes by means of an air compression cylinder 4 and at the same time the vinyl chloride pipes B become a state of loose insertion with respect to the upper and lower guides. By driving the lower delivery rolls, the vinyl chloride pipes are inserted into the steel pipes and the support table 9 of the air compression cylinder 4 is made capable of coming up and down in accordance with the diameter of pipes. In this fashion, insertion can be performed correctly and promptly and thus labor saving and high efficiency in the work can be made thereby.

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