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6 条记录 (耗时 0.012 秒)

    ROLL FORMING MACHINE
    1.
    发明公开
    ROLL FORMING MACHINE 审中-公开

    公开(公告)号：EP3715006A1

    公开(公告)日：2020-09-30

    申请号：EP18880803.4

    申请日：2018-11-21

    申请人： Nakata Manufacturing Co., Ltd.

    发明人： SATO Takeyuki ,  NAKANO Tomoyasu ,  WANG Feizhou

    IPC分类号： B21D5/12 ,  B21B31/02 ,  B21B31/08 ,  B21C37/08

    摘要： Changing of a horizontal roll in a horizontal roll stand involving readjustment of an amount of pressing is to be done readily and promptly. In order to achieve this, a horizontal roll stand 10 with a pair of built-in upper and lower horizontal rolls 11 is configured to retreat toward one side across a forming line. A fixed stand 40 stands upright on a counter-retreating side of the forming line. An overhang part 42 of the fixed stand 40 jutting out over the forming line is provided with a pressure device 43 that applies a pressing force to the horizontal rolls 11. The horizontal roll stand 10 includes a horizontal roll housing 12 with an opened top, receives the pressing force from the pressure device 43 via the opened top, and retreats to the outside of the forming line while the pressure device 43 is left on the forming line. The overhang part 42 of the fixed stand 40 is engaged with the horizontal roll housing 12 of the horizontal roll stand 10 to support the horizontal roll housing 12 in the forming line.

    PIPE CUTTING MACHINE
    2.
    发明公开
    PIPE CUTTING MACHINE 审中-公开

    公开(公告)号：EP3513894A1

    公开(公告)日：2019-07-24

    申请号：EP17850970.9

    申请日：2017-09-14

    申请人： Nakata Manufacturing Co., Ltd.

    发明人： YABUTA Hiroaki ,  SATO Takeyuki ,  WANG Feizhou ,  KITAYAMA Hiromasa ,  YIN Jilong

    IPC分类号： B23D45/12 ,  B23D21/00 ,  B23D45/10 ,  B23D45/20 ,  B23D47/00 ,  B23D47/04 ,  B23D47/12

    摘要： To provide a pipe cutting machine capable of cutting a pipe even of a large diameter efficiently in a short period of time, and achieving excellent economical efficiency and excellent durability with a simple, compact, and light-weight configuration.
    A pipe cutting machine cuts a pipe 10 at a right angle to the center line of the pipe 10. The pipe cutting machine comprises: rotary blades 20, 20 in a pair, with a plane at a right angle to the center line of the pipe 10 to be cut defined as an x-y plane and the center of the pipe 10 defined as a coordinate origin, the rotary blades being arranged to face each other on both sides of a y axis in such a manner that blade edges of the rotary blades 20, 20 overlap each other in the direction of an x axis; a straightforward driving mechanism 50 that drives the rotary blades 20, 20 in a pair straightforward in opposite directions of a y-axis direction so as to make the rotary blades 20, 20 in a pair pass each other on the x axis and in the vicinity of the x axis; and a power direction conversion mechanism 46 and a power direction conversion mechanism 47 that change part of straightforward driving force in the y-axis direction to force in the x-axis direction and move the rotary blades 20, 20 in a pair outwardly to get farther from the y axis for avoiding interference between the blade edges when the rotary blades 20, 20 in a pair pass each other on the x axis and in the vicinity of the x axis.

    SQUEEZE ROLL STAND
    3.
    发明公开
    SQUEEZE ROLL STAND 有权
    PRESSWALZGERÜST

    公开(公告)号：EP2700457A1

    公开(公告)日：2014-02-26

    申请号：EP11863940.0

    申请日：2011-07-29

    申请人： Nakata Manufacturing Co., Ltd.

    发明人： YABUTA Hiroaki ,  WANG Feizhou ,  TSURUTA Satoshi ,  SHIBATA Shoji ,  HATABARA Kunihiko ,  FUJINO Katsumi

    IPC分类号： B21D5/12

    CPC分类号： B21B31/14 ,  B21B13/001 ,  B21C37/0811 ,  B21C37/0822 ,  B21D5/12

    摘要： The present invention is to provide a squeeze roll stand in which roll replacement of squeeze rolls is easily performed and a device structure is simple. In order to realize this, the squeeze roll stand includes a combination of a fixed portion 10 installed at a joint position of an electric resistance welded pipe manufacturing line, in which squeeze rolls excluding left and right upper rolls are detachably assembled, and a movable portion 20 overlying the fixed portion 10, inside which the left and right upper rolls are detachably assembled, the movable portion being inclined, taking the back surface side (line downstream side) as a fulcrum point, toward the same side from an assembling position on the fixed portion 10 to a retreat position to open an upper part of the fixed portion 10. The movable portion 20 is driven and reciprocated between the assembling position and the retreat position with cylinder type actuators 24 as a drive mechanism 40. At the retreat position, the movable portion 20 overlies a bead grinding device 50 arranged on the back surface side (line downstream side) of the fixed portion 10 with a front surface facing upward.

    摘要翻译： 本发明提供一种挤压辊架，其中易于进行辊辊更换并且装置结构简单。 为了实现这一点，挤压辊支架包括安装在电阻焊管生产线的联接位置处的固定部分10的组合，其中除了左上辊和右上辊之间的挤压辊可拆卸地组装，以及可移动部分 20，其上面固定部分10，其中左右上部辊可拆卸地组装在其中，可动部分以背面侧（下游侧）为支点，以相对于第 固定部10到打开固定部10的上部的退避位置。可动部20在作为驱动机构40的圆筒型致动器24之间在组装位置和退避位置之间被驱动往复运动。在退避位置， 可动部20覆盖设置在固定部10的背面侧（线下游侧）的胎圈研磨装置50的前表面 向上。

    METHOD AND DEVICE FOR MOLDING SQUARE TUBE
    4.
    发明公开
    METHOD AND DEVICE FOR MOLDING SQUARE TUBE 审中-公开

    公开(公告)号：EP3778052A1

    公开(公告)日：2021-02-17

    申请号：EP19785769.1

    申请日：2019-04-12

    申请人： Nakata Manufacturing Co., Ltd.

    发明人： YIN Jilong ,  NISHII Masato ,  NAKANO Tomoyasu ,  WANG Feizhou

    IPC分类号： B21D5/12 ,  B21C37/15

    摘要： [Problem to be solved] To enhance forming performance enhanced in square tube forming of forming a round tube into a square tube by passing the round tube through a plurality of roll stands arranged in a raw tube forming direction. To give a high degree of multi-usability to a square tube forming device. To suppress the entire length of a roll stand array.
    [Solution] A first flat roll stand 20A and a second flat roll stand 20B of rolling directions orthogonal to each other are arranged alternately in a forming direction to form a roll stand array 10. Each of the roll stands 20A and 20B includes roll gap adjusting means by which a rolling amount is independently settable, and one of the first flat roll stand 20A and the second flat roll stand 20B adjacent to each other is driven to rotate by roll driving means 40. A forming rolling amount distribution is allocated individually as a rolling amount at each of the roll stands 20A and 20B. The forming rolling amount distribution is determined in advance for stands from a first-stage stand to a final-stage stand in response to the outer diameter, thickness, and material of a forming target raw tube and an intended dimension of a square tube as a product.