公开(公告)号：US07373796B2

公开(公告)日：2008-05-20

申请号：US10564348

申请日：2003-12-04

申请人： Toshifumi Kubota ,  Masaaki Maruyama ,  Hideyuki Aiura ,  Makoto Sakaguchi

发明人： Toshifumi Kubota ,  Masaaki Maruyama ,  Hideyuki Aiura ,  Makoto Sakaguchi

IPC分类号： B21H3/04 ,  B21K1/44

CPC分类号： B21H3/042 ,  Y10T408/853 ,  Y10T408/85918

摘要： The invention is aimed at the provision of an automatic releasing-type rolling head for forming a tapered thread on a pipe in which the shock generated at the end of the thread rolling operation is alleviated and a thread automatic rolling roller retracting mechanism is not damaged. The rolling head includes shaft bearing plates 33 which are slidably supported in a plurality of guide grooves 36 radially provided on inner surfaces of the front and rear closures of the housing 30 and which are provided on their outer surfaces in the radial directions with oblique surfaces 33b, thread rolling rollers 35 rotatably supported by the shaft bearing plates 33, a cam ring 31 which rotates in the housing 30 and has cam oblique surfaces 31a opposed to the oblique surfaces 33b of the shaft bearing plates 33, a lever 44 which abuts at its oblique surface against a cam member 45 to prevent movement thereof in association with the cam ring 31 and an abutment member 41 which is pressed and moved by a thread-rolled pipe. When the to-be-rolled pipe is thread-rolled to a predetermined length, the oblique surface of the lever 44 moving in association with the movement of the abutment member 41 is gradually moved away from the cam member 45. The cam ring 31 is rotated and the shaft bearing plates 33 and the thread rolling rollers 35 are moved in radial and outward directions and released from the to-be-rolled pipe.

摘要翻译： 本发明的目的在于提供一种用于在管道上形成锥形螺纹的自动释放型滚动头，其中减轻了在滚丝操作结束时产生的冲击，并且螺纹自动滚动辊缩回机构没有被损坏。 滚动头包括轴承板33，其可滑动地支撑在径向设置在壳体30的前部和后部闭合件的内表面上的多个引导槽36中，并且在径向方向上设置有倾斜表面33 b，由轴承板33可旋转地支撑的滚丝滚子35，在壳体30中旋转并具有与轴承板33的倾斜面33b相对的凸轮倾斜面31a的凸轮环31，杆44 在其倾斜表面抵靠凸轮构件45邻接，以防止与凸轮环31相关联的运动，以及通过螺纹滚动管压紧和移动的抵接构件41。 当将被轧制的管道螺纹轧制到预定长度时，与抵靠构件41的移动相关联地移动的杆44的倾斜表面逐渐地从凸轮构件45移开。 凸轮环31旋转，轴承板33和滚丝滚子35沿径向和向外方向移动并从被卷绕管释放。

公开(公告)号：US20060162411A1

公开(公告)日：2006-07-27

申请号：US10564348

申请日：2003-12-04

申请人： Toshifumi Kubota ,  Masaaki Maruyama ,  Hideyuki Aiura ,  Makoto Sakaguchi

发明人： Toshifumi Kubota ,  Masaaki Maruyama ,  Hideyuki Aiura ,  Makoto Sakaguchi

IPC分类号： B21H3/02

CPC分类号： B21H3/042 ,  Y10T408/853 ,  Y10T408/85918

摘要： The invention is aimed at the provision of an automatic releasing-type rolling head for forming a tapered thread on a pipe in which the shock generated at the end of the thread rolling operation is alleviated and a thread automatic rolling roller retracting mechanism is not damaged. The rolling head includes shaft bearing plates 33 which are slidably supported in a plurality of guide grooves 36 radially provided on inner surfaces of the front and rear closures of the housing 30 and which are provided on their outer surfaces in the radial directions with oblique surfaces 33b, thread rolling rollers 35 rotatably supported by the shaft bearing plates 33, a cam ring 31 which rotates in the housing 30 and has cam oblique surfaces 31a opposed to the oblique surfaces 33b of the shaft bearing plates 33, a lever 44 which abuts at its oblique surface against a cam member 45 to prevent movement thereof in association with the cam ring 31 and an abutment member 41 which is pressed and moved by a thread-rolled pipe. When the to-be-rolled pipe is thread-rolled to a predetermined length, the oblique surface of the lever 44 moving in association with the movement of the abutment member 41 is gradually moved away from the cam member 45. The cam ring 31 is rotated and the shaft bearing plates 33 and the thread rolling rollers 35 are moved in radial and outward directions and released from the to-be-rolled pipe.

摘要翻译： 本发明的目的在于提供一种用于在管道上形成锥形螺纹的自动释放型滚动头，其中减轻了在滚丝操作结束时产生的冲击，并且螺纹自动滚动辊缩回机构没有被损坏。 滚动头包括轴承板33，其可滑动地支撑在径向设置在壳体30的前部和后部闭合件的内表面上的多个引导槽36中，并且在径向方向上设置有倾斜表面33 b，由轴承板33可旋转地支撑的滚丝滚子35，在壳体30中旋转并具有与轴承板33的倾斜面33b相对的凸轮倾斜面31a的凸轮环31，杆44 在其倾斜表面抵靠凸轮构件45邻接，以防止与凸轮环31相关联的运动，以及通过螺纹滚动管压紧和移动的抵接构件41。 当将被轧制的管道螺纹轧制到预定长度时，与抵靠构件41的移动相关联地移动的杆44的倾斜表面逐渐地从凸轮构件45移开。 凸轮环31旋转，轴承板33和滚丝滚子35沿径向和向外方向移动并从被卷绕管释放。