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公开(公告)号：US20040261483A1
公开(公告)日：2004-12-30
申请号：US10485925
申请日：2004-08-12
发明人： Hiroshi Fukuchi , Hiroyuki Mitake , Shizuo Kohinata , Kiyoshi Uda , Tsutomu Haeno , Hiroo Ishibashi
IPC分类号： B21D009/10
摘要： This invention provides a bending roll apparatus capable of preventing barrel-like deformation of a pipe occurring during a roll bending work and of manufacturing a small diameter elongated pipe. In an apparatus for manufacturing a pipe by pushing rolls to a core roll, feeding a metal sheet to their contact portions and performing a bending work, the bending roll apparatus comprises a core roll formed of a metal and a plurality of push rolls having a surface portion thereof formed of an elastic material and disposed around the core roll. The invention further provides, in a bending roll apparatus, a core roll formed of a metal, a plurality of push rolls formed of a metal and disposed around the core roll, and holding the core roll when a metal sheet is bent, and a guide belt formed of an elastic material, interposed between the core roll and each of the push rolls, contacting on a core roll surface on a side opposite to an entry side of the metal sheet and driven in synchronism with the core roll.
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公开(公告)号：US4606208A
公开(公告)日：1986-08-19
申请号：US610707
申请日：1984-05-16
申请人： Calvin C. Williamson
发明人： Calvin C. Williamson
IPC分类号： B21D5/14
CPC分类号： B21D5/143
摘要： The method and apparatus for rolling a section of metal plate into a cylindrical pipe section wherein leading and trailing edges of said plate section are pre-crimped to the final desired radius of said cylindrical pipe section, feeding the leading edge of said plate section into a forming mill that includes an overhead mandrel having a radius approximating said final desired radius of said pipe section, forcing said mandrel to deflect along the length thereof during the forming of said plate section between said mandrel and a pair of driven bending roll means whereby said mandrel and said bending roll means are maintained at the same curvature throughout the length thereof and said plate section is uniformly bent along the length thereof to said desired final radius.
摘要翻译： 将金属板的一部分轧制成圆柱形管段的方法和装置，其中所述板段的前缘和后缘被预压缩到所述圆柱形管段的最终期望半径，将所述板段的前缘进给到 成形磨机，其包括具有接近所述管段的所述最终期望半径的半径的顶置心轴，在所述心轴与一对从动弯曲辊装置之间形成所述板段期间迫使所述心轴在其长度上偏转，由此所述心轴 并且所述弯曲辊装置在其整个长度上保持相同的曲率，并且所述板部分沿其长度均匀地弯曲成所需的最终半径。
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公开(公告)号：US1634661A
公开(公告)日：1927-07-05
申请号：US9039426
申请日：1926-02-24
申请人： SACHS GMBH R
发明人： JOHANNES GRONEFELD
CPC分类号： B21C37/105 , B21D5/143
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公开(公告)号：US1509134A
公开(公告)日：1924-09-23
申请号：US53335722
申请日：1922-02-01
申请人： RUDD HARDESTY
发明人： FREEZE JONATHAN R
IPC分类号： B21D5/14
CPC分类号： B21D5/143
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公开(公告)号：US5341665A
公开(公告)日：1994-08-30
申请号：US850294
申请日：1992-03-12
摘要： The process and apparatus of the invention permits the production of annular parts, such as ferrules, on which machining operations are to be carried out. The process includes the steps of bending a predimensioned metal sheet by a series of internal supports mounted on a rotary plate and by a pressure roller bearing on the outer surface of the sheet. One complete rotation of the rotary plate makes it possible to completely bend the sheet into the form of a ferrule. The second main operation includes carrying out of a welding operation on the two ends of the metal sheet. This process makes it possible to carry out any random prior machining operation on the predimensioned flat metal sheet, without the machining operations being impaired by the bending or welding operation. The process is applicable to the production of front ferrules for casings surrounding the coldest pipe of a double flow turbojet engine.
摘要翻译： 本发明的方法和装置允许生产将在其上执行加工操作的环形部件，例如套圈。 该方法包括通过安装在旋转板上的一系列内部支撑件和在片材的外表面上的压力滚子轴承来弯曲预定金属片的步骤。 旋转板的一个完整的旋转使得可以将片材完全弯曲成套圈的形式。 第二主要操作包括在金属片的两端进行焊接操作。 该过程使得可以在预先拉伸的平板金属板上执行任何随机的现有加工操作，而不会由于弯曲或焊接操作而损害加工操作。 该方法适用于生产用于双流涡轮喷气发动机的最冷管周围的壳体的前套圈。
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公开(公告)号：US4132106A
公开(公告)日：1979-01-02
申请号：US795164
申请日：1977-05-09
申请人： Otto Bihler
发明人： Otto Bihler
摘要： In each cycle of a sequence of repetitive cycles a longitudinal section of an elongated, continuous piece of material spaced from the free end of the piece is draped about an arcuate face of a mandrel by a bending tool moving about the axis of curvature of the mandrel face, and the free end of the piece is thereby engaged with the arcuate face of another mandrel and secured to the other mandrel, whereupon the section draped over the first mandrel is cut. The central portion of the blank severed thereby from the continuous piece is draped over the second mandrel bent into a ring, the curvature of the leading and trailing blank portion, being due to previous draping over the first mandrel.
摘要翻译： 在重复循环序列的每个循环中，与片的自由端间隔开的细长的，连续的材料的纵向截面通过围绕心轴的曲率轴线移动的弯曲工具围绕心轴的弧形表面 因此，该件的自由端由此与另一个心轴的弓形面接合并固定到另一个心轴上，从而切割悬挂在第一心轴上的部分。 因此，从连续件切断的坯料的中心部分被覆盖在弯曲成环的第二心轴上，前缘和后部坯料部分的曲率是由于先前在第一心轴上悬垂的。
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7.发明授权
公开(公告)号：US4056961A
公开(公告)日：1977-11-08
申请号：US739649
申请日：1976-11-08
申请人： Eugene M. Jamison
发明人： Eugene M. Jamison
CPC分类号： B21D5/143
摘要： Apparatus for forming cylindrical spacers from metal blanks includes a base plate mountable upon a support with a series of spaced uprights upon the base plate. A die bar spans and is secured to said uprights. A bending roll shaft is arranged parallel to and spaced from said die bar and is rotatively journalled upon said uprights. The roll shaft has an elongated slot adapted to supportably receive the edge of one or more blanks to be formed. A rotative drive is connected to said roll shaft whereby said blank is guidably interposed between the roll shaft and die bar and adapted to wrap around the roll shaft during rotation thereof. Provision is made for stripping the formed spacers from the roll shaft. The method of forming cylindrical spacers from flat metal blanks comprises the steps of rotatively mounting a slotted bending roll shaft upon a horizontal axis and assembling and interlocking the lower edge of one or more blanks down into the roll bar slot. A further step includes advancing said blanks and wrapping said blanks around said roll shaft while holding them in registry with said roll shaft to simultaneously form a plurality of said spacers. A final step includes successively stripping the formed spacers from the roll shaft.
摘要翻译： 用于从金属坯料形成圆柱形间隔件的装置包括可安装在支撑件上的基板，其具有在基板上的一系列间隔开的立柱。 模具横跨并固定在所述立柱上。 弯曲辊轴与所述模具棒平行并间隔设置，并且可旋转地安装在所述立柱上。 辊轴具有适于可支撑地容纳要形成的一个或多个坯件的边缘的细长槽。 旋转驱动器连接到所述辊轴，由此所述坯件被可选地插入在辊轴和模具棒之间并且适于在其旋转期间包围辊轴。 规定了从轧辊轴上剥离形成的间隔件。 从扁平金属坯料形成圆柱形间隔件的方法包括以下步骤：将开槽弯曲辊轴旋转地安装在水平轴线上，并将一个或多个坯件的下边缘组装和互锁到辊杆槽中。 进一步的步骤包括推进所述坯件并将所述坯件围绕所述辊轴缠绕，同时将其保持与所述辊轴对准，以同时形成多个所述间隔件。 最后的步骤包括从辊轴连续地剥离形成的间隔件。
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公开(公告)号：US3738149A
公开(公告)日：1973-06-12
申请号：US3738149D
申请日：1971-10-01
申请人： ARCHER B
发明人： ARCHER B
CPC分类号： B21C37/0815 , B21D5/143
摘要： Apparatus and method for making completely rounded pipe cylinders of selectively different diameters and wall thicknesses, with a minimal change-over time loss. The invention includes a combination of press and cylinder roll including a floating roll, press roll, drive rolls and stabilizing rolls, so interrelated and interacting to form a complete circular pipe cylinder from flat stock. The method entails the use of various diameter removable or floating rolls appropriate for changes in diameter of pipe cylinder, or wall thickness of pipe cylinder to be formed, with no appreciable time loss in the change-over from one end product to another.
摘要翻译： 用于制造具有选择性不同直径和壁厚的完全圆形管筒的装置和方法，具有最小的转换时间损失。 本发明包括压辊和滚筒辊的组合，其包括浮动辊，压辊，驱动辊和稳定辊，因此相互关联并相互作用以从扁平坯料形成完整的圆形管筒。 该方法需要使用适合于管筒直径变化的各种直径的可移除或浮动的辊，或者要形成的管筒的壁厚，在从一个最终产品到另一个最终产品的转换中没有明显的时间损失。
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公开(公告)号：US3117214A
公开(公告)日：1964-01-07
申请号：US11638561
申请日：1961-06-12
申请人： AMERICAN CAN CO
发明人： BURTON GOLD VANCE
IPC分类号： B21D5/14 , B23K11/087
CPC分类号： B23K11/0876 , B21D5/143
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公开(公告)号：US2265187A
公开(公告)日：1941-12-09
申请号：US30966039
申请日：1939-12-16
申请人： AMERICAN CAN CO
发明人： MURCH JOHN H
IPC分类号： B21D5/14
CPC分类号： B21D5/143
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