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91. 实用新型

JPH0415370Y2 失效
公开(公告)号：JPH0415370Y2
公开(公告)日：1992-04-07
申请号：JP12169587
申请日：1987-08-08
IPC分类号： B21D9/05 , B21D11/08 , F16L43/00

92. 发明专利

JPH03297519A METHOD FOR BENDING MATERIAL TO BE FORMED 失效
公开(公告)号：JPH03297519A
公开(公告)日：1991-12-27
申请号：JP10234690
申请日：1990-04-18
申请人： MAZDA MOTOR
发明人： YAMANE MAKOTO
IPC分类号： B21D11/08 , B21D7/08 , B21D9/01
摘要： PURPOSE:To prevent the deforming of opening caused with bending by bending the material to be formed to the prescribed shape so as to be bent and deformed with the opening in a flat plane in the state of the core material of elastic material being inserted in the opening of the shaped material, and next taking the core material out of the material to be formed. CONSTITUTION:Because the bending is executed in the state of the core material 2 being inserted in the opening of the material to be formed, the opening is prevented from deforming during the bend working. Because the core material 2 is formed of the elastic material, there is no trouble for bending, and because the bending is executed in the state of the opening being positioned in the bending plane, it is easy to take out the core material of the material to be formed after working. Further, by utilizing the elastic plate material formed with the many grooves stretching in vertical direction against the longitudinal direction on the both side faces as the core material, the working can be easily executed without the generation of plastic deformation for the core material against the bending of large curvature.

93. 实用新型

JPH02118614U 失效
公开(公告)号：JPH02118614U
公开(公告)日：1990-09-25
申请号：JP2680589
申请日：1989-03-09
IPC分类号： B21D11/08 , B21D11/20

94. 发明专利

JPS6338250B2 失效
公开(公告)号：JPS6338250B2
公开(公告)日：1988-07-29
申请号：JP13197283
申请日：1983-07-21
申请人： HITACHI LTD
发明人： NAKAMURA KEIICHI , ASAO HIROSHI , WATANABE SHINOBU , KAWADA YOICHI
IPC分类号： B21D7/06 , B21D5/01 , B21D11/08

95. 发明专利

JPS62192215A ROLLING BENDING DEVICE 失效
公开(公告)号：JPS62192215A
公开(公告)日：1987-08-22
申请号：JP3336886
申请日：1986-02-18
申请人： HITACHI LTD
发明人： MIDORIKAWA MASAKAZU , KITA HISANAO , NAKASAKI TAKAMITSU , KUROKAWA TAKEO , WATANABE SHINOBU
IPC分类号： B21D11/08
摘要： PURPOSE:To perform the bending of a blank in the prescribed curvature size from the beginning with a small-sized and strong device by performing the guide and bending of the blank to be rolled by the upper and lower rolls with one side step by the inlet side guide directly provided on a bearing part and the outlet side approaching side roll. CONSTITUTION:A work blank 1 is rolled by the upper and lower rolls 2A, 3A having a stepped bank A at one side. The blank 1 is guided and pressed by the inlet side guide 11 directly provided on the housing 8 at the opposite side of the stepped bank A of the housings 7, 8 of roll bearings 5, 6 and by the side roll 4' provided by approaching to the outlet side. The blank 1 is subjected to bending by the approaching side roll4' from the beginning with preventing the side slippage of the blank 1 by the stepped part A by rolling the blank 1 by guiding it optimally. The bending of the succeeding side roll 4 is therefore made stable and correct and the blank 1 is worked in the prescribed size and curvature with a compact and strong device.

96. 发明专利

JPS6115771B2 JPS6115771B2 - 失效
公开(公告)号：JPS6115771B2
公开(公告)日：1986-04-25
申请号：JP10509479
申请日：1979-08-20
申请人： Babcock Hitachi Kk
发明人： MURAKAMI HIROYA , TAKASAKI MITSUHIRO , YAMADA OSAMU , HORI KATSUYOSHI , SAITO YOSHIO
IPC分类号： B21C37/26 , B21D7/08 , B21D11/08

97. 发明专利

JPS59202119A Bending method of metallic sheet 失效
标题翻译：金属片弯曲方法
公开(公告)号：JPS59202119A
公开(公告)日：1984-11-15
申请号：JP7775283
申请日：1983-05-02
申请人： Matsushita Electric Ind Co Ltd
发明人： HASHIMOTO KENJI , YAMAMOTO MORIKAZU
IPC分类号： B21D5/01 , B21D11/08 , G02B7/34
CPC分类号： B21D11/08 , G02B7/34
摘要： PURPOSE:To bend a metallic sheet to a small radius of bending without cracking, etc. by providing a properly sized hole in the position deviated from a centerline for bending and bending the sheet in the same direction as the direction of the roll grain. CONSTITUTION:A properly sized hole 3 having a centerline B is provided in the position slightly deviated from a centerline A for bending a metallic sheet 1 and the sheet is bent at the centerline A. The direction of the roll grain 2 near the bend is changed toward the center of the hole 3 by the above-mentioned method, by which a product having a required bending characteristic with a small inside diameter R is obtd. This bending method is applicable to fabrication of the metallic sheet to a terminal of a variable resistor, etc.
摘要翻译：目的：通过在偏离中心线的位置上设置适当尺寸的孔，使金属片弯曲到小的弯曲半径而不会发生弯曲，并沿与辊纹方向相同的方向弯曲和弯曲。构成：具有中心线B的适当尺寸的孔3设置在稍微偏离用于弯曲金属片1的中心线A的位置，并且片材在中心线A处弯曲。弯曲附近的辊纹2的方向改变通过上述方法朝向孔3的中心，由此获得具有小内径R的所需弯曲特性的产品。该弯曲方法适用于将金属片制造成可变电阻器等的端子。

98. 发明专利

JPS59179226A Manufacture of bent product 失效
标题翻译：弯曲产品的制造
公开(公告)号：JPS59179226A
公开(公告)日：1984-10-11
申请号：JP5567583
申请日：1983-03-31
申请人： Matsushita Electric Works Ltd
发明人： FUJIWARA YOSHIYUKI , OOKUBO YOSHIHARU
IPC分类号： B21D5/08 , B21D11/08
CPC分类号： B21D11/08
摘要： PURPOSE:To reduce the cost of a scoring die and to prevent the spring-back of a product by providing cutting scores at suitable intervals to a hoop-like base material and forming the material then cutting the formed material at the scores. CONSTITUTION:A base material 1 is uncoiled from a roll 3 and cutting scores 2 intersecting orthogonally with the longitudinal direction of the material 1 are provided at suitable intervals to the material 1 by a scoring machine 10. The material 1 is supplied to a bending machine 4 by which the material 1 is bent and formed in the short-side direction thereof. After the material 1 is passed through the inside of a take-off device 7, the material 1 is passed through cutting rolls 11 revolving at different circumferential speeds and is cut in the positions of the scores 2, by which a bent product 6 having a specified length is obtd.
摘要翻译：目的：为了降低刻痕模具的成本，并通过以适当的间隔向箍状基材提供切割分数并形成材料，然后以分数切割成形材料，防止产品的弹回。构成：基材1从卷3卷起，并且通过刻痕机10以适当的间隔以正交方式与材料1的纵向方向交叉地切割刻痕2，将材料1供给到弯曲机 4，材料1沿其短边方向弯曲并形成。在材料1通过取出装置7的内部之后，材料1通过以不同圆周速度旋转的切割辊11，并且在分数2的位置处被切割，由此通过该弯曲产品6具有指定长度为obtd。

99. 发明专利

JPS58192619A Reforming method of steel plate 失效
标题翻译：钢板改造方法
公开(公告)号：JPS58192619A
公开(公告)日：1983-11-10
申请号：JP7406482
申请日：1982-05-01
申请人： Sumitomo Metal Ind Ltd
发明人： MASUI TAKESHI , FUTADO NOBUAKI
IPC分类号： B21D11/08 , B21D19/00
CPC分类号： B21D19/005
摘要： PURPOSE:To reform easily a camber without generating a flaw on a steel plate, by pressing and plastically deforming a short side corner part or a side end face along the longitudinal direction of a steel plate on which the camber is generated. CONSTITUTION:In a short side corner art along the longitudinal directin of a steel plate 1 on which a camber is generated, the lower side is received by a flat roll 2-2, and the upper side corner part is pressed by a tapered roll 2-1. Or the upper side is pressed by inclining the flat roll 2-2. Also, the upper and lower corners are pressed by an upper and lower tapered roll 2-1. Also, the short side end face can be pressed by a vertical type flat roll 2-3 or a hole type roll 2-3'. In all the cases, the short side is plastically deformed partially and is drawn by pressure, the short side length is made equal to the long side length, and the camber can be reformed.
摘要翻译：目的：通过沿着生产弧度的钢板的长度方向对短边角部或侧端面进行压缩塑性变形，能够容易地改造弯曲而不产生钢板上的缺陷。构成：在沿着其上产生弯度的钢板1的纵向方向的短边角技术中，下侧由平辊2-2容纳，并且上侧角部被锥形辊2按压 -1。或者通过倾斜平辊2-2来按压上侧。此外，上下角由上下锥形辊2-1按压。此外，短边端面可以由垂直型平辊2-3或孔型辊2-3'按压。在所有情况下，短边部分地塑性变形并被压力拉伸，短边长度等于长边长度，并且外倾角可以重新形成。

100. 发明专利

JPS58110144A PRODUCTION OF PARTS HAVING LARGE HOLE 失效
公开(公告)号：JPS58110144A
公开(公告)日：1983-06-30
申请号：JP20694681
申请日：1981-12-23
申请人： HITACHI LTD
发明人： OCHIAI IZUMI , MATSUI YOSHIO , AYABE TADAAKI
IPC分类号： B21D53/16 , B21D11/08 , B21D19/08 , B21D53/18
摘要： PURPOSE:To produce a parts having a large hole of which diameter is almost similar to the external periphery of the parts in size with high yield, by bending a band plate as a closed ring material and forming the ring. CONSTITUTION:A band plate 8 wound like a coil is rewound by an uncoiler 9 and sent to a rolling/bending machine 11 through a switch to control the sag of the band plate. In the rolling/bending machine 11, the band plate 8 is bent like a ring 15 through a leveler 12, a rolling roll 13 and a guide 14, a circumferential length of the ring is measured by a encoder 16 and a ring 18 having necessary length is cut by a flying cutter 17. The cut part is butted and welded at its end parts by a spot welder 21 and a material coupled like a ring is shrunk on the outside and extended on the inside to form a flange forming part 1.

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