A bolt and thread rolling die and the manufacture of the bolt
    5.
    发明公开
    A bolt and thread rolling die and the manufacture of the bolt 有权
    螺栓,滚丝螺栓的模具和制造方法

    公开(公告)号:EP1302678A3

    公开(公告)日:2003-08-20

    申请号:EP02016352.3

    申请日:2002-07-25

    申请人: Meidoh Co., Ltd.

    IPC分类号: F16B35/04 B21H3/02

    CPC分类号: B21H3/022 F16B35/047

    摘要: The object of the present invention is to provide a bolt that effectively prevents gouging, seizure and racing between the bolt and nut without the aid of a guide boss and is effective when combined with the case nut. Said object can be attained by providing a bolt having a threaded shank portion (103) wherein a plural number of notched faces (104,105) slanting toward the end of said threaded shank portion (103) at an angle ranging from ±15° to ±80° toward the axis of said threaded shank portion (103), are formed at the beginning of the thread part (103A) of said threaded shank portion (103).

    Method and apparatus for manufacturing an anchor bolt
    6.
    发明公开
    Method and apparatus for manufacturing an anchor bolt 失效
    Verfahren und Vorrichtung zur Herstellung eines Ankerbolzens。

    公开(公告)号:EP0428317A2

    公开(公告)日:1991-05-22

    申请号:EP90312137.4

    申请日:1990-11-06

    发明人: Shinjo, Katsumi

    IPC分类号: B21H3/02

    摘要: In a method of manufacturing anchor bolts to be fixed on concrete structures there is a preliminary step of heading a steel rod to form at an upper end thereof, a head (13) having a tapered surface (13 a ) tapering downwardly from the upper end and, decreasing in diameter subsequently a male screw (14) is formed at the other end of a rod by thread-rolling, and simultaneously a part adjacent to the head is rolled to form a reduced diameter rod-portion by gradually displacing a surface layer of the rod-portion (15) inwardly and outwardly to give rise to inner (18) and outer (17) transient swells respectively forming a stopper and a tapered portion merging into the tapered surface (13 a ) of the head. An expansible sleeve is loosely fitted on the reduced diamter rod-portion, with the sleeve being made by die-cutting and bending a metal plate into a cylindrical shape of an outer diameter substantially equal to outer diameter of the screw (14).

    摘要翻译: 在制造要固定在混凝土结构上的地脚螺栓的方法中,有一个初步步骤,即在上端形成一个钢杆,一个头部(13)具有从上端向下锥形的锥形表面(13a) 直径减小,随后通过螺纹轧制在杆的另一端形成外螺纹(14),并且同时通过逐渐移位表面层的方式将与头部相邻的部分轧制以形成直径减小的杆部分 杆部分(15)向内和向外以产生分别形成止动器的内部(18)和外部(17)瞬态隆隆,并且锥形部分合并到头部的锥形表面(13a)中。 可膨胀的套筒松散地安装在减小的直径杆部分上,套筒通过模切和将金属板弯曲成基本上等于螺钉(14)的外径的外径的圆柱形形状而制成。

    METHOD AND DEVICE FOR MANUFACTURING THREADED BOTTLE CAN
    8.
    发明公开
    METHOD AND DEVICE FOR MANUFACTURING THREADED BOTTLE CAN 有权
    VERFAHREN UND VORRICHTUNG ZUR HERSTELLUNG EINER FLASCHENDOSE MIT GEWINDE

    公开(公告)号:EP2835188A1

    公开(公告)日:2015-02-11

    申请号:EP13769663.9

    申请日:2013-03-19

    发明人: HOSOI, Masahiro

    摘要: Including: an intermediate-formed product forming process forming a shoulder part 3, a pipe part 18, a tapered part 17 and an aperture-end part 16 above a trunk part; and a screw-forming forming a screw-thread part by an inner mold 64A and an outer mold 64B in which the pipe part 18 is sandwiched therebetween, an outer diameter of the pipe part is formed to an intermediate diameter between a ridge diameter and a bottom diameter of the screw-thread part in the intermediate-formed product forming process, and in the screw-forming process, the screw-thread part is formed from the tapered part to the pipe part so as to form a screw-starting part is formed at an intermediate position of the tapered part, a height of a first step of a right-hand screw-type protrusion of the inner mold is formed to be lower than a height of a second and subsequent steps in an angle range of 90° circumferentially continuing from the screw-starting part, and rolling a screw-forming tool having the inner mold and the outer mold with revolving in a left-hand direction seeing from an aperture-end toward a bottom part of the intermediate-formed product.

    摘要翻译: 包括:在躯干部分上方形成肩部3,管部18,锥形部17和孔端部16的中间成形品形成工序; 以及通过内模64A和其中管部18夹在其间的外模64B形成螺纹部的螺纹成形,管部的外径形成为脊直径和 在中间成形品成型工序中,螺纹部的底部直径为螺纹形状,螺纹部由锥形部向管部形成,从而形成螺纹起始部, 形成在所述锥形部的中间位置,所述内模的右侧螺旋型突起的第一台阶的高度形成为低于90度的角度范围的第二及后续台阶的高度 从螺杆起始部分周向延伸,并且从左侧方向上滚动具有内模和外模的螺旋形成工具,从中间成形产品的孔端朝向底部。

    METHOD OF FORMING ANCHOR BOLTS
    9.
    发明公开
    METHOD OF FORMING ANCHOR BOLTS 有权
    方法成型螺纹锚杆

    公开(公告)号:EP2533919A1

    公开(公告)日:2012-12-19

    申请号:EP10705989.1

    申请日:2010-02-12

    IPC分类号: B21H1/18 B21H3/02 B21H7/18

    摘要: The inventive method of forming anchor bolts comprises following steps. A rod-shaped workpiece (26) is roll-formed by penetrating the rod-shaped workpiece (26) with two wedge-shaped tools (34,35) at two points (46,47). The two points (46,47) are arranged on opposite sides and axially separated of a plane (33) perpendicular to an axis of the rod-shaped workpiece (26). The two wedge-shaped tools (34,35) are axially approaching to the plane (33) while the rod-shaped workpiece (26) is revolved around the axis (38). The roll-formed workpiece (26) is separated along the plane (33) for forming two bolts. A sleeve is applied around the anchor bolts.