Method and apparatus for variably controlling transverse rigidity of
rolling machine
    5.
    发明授权
    Method and apparatus for variably controlling transverse rigidity of rolling machine 失效
    可变控制轧机横向刚度的方法和装置

    公开(公告)号:US4458515A

    公开(公告)日:1984-07-10

    申请号:US374414

    申请日:1982-05-03

    申请人: Isao Imai

    发明人: Isao Imai

    IPC分类号: B21B31/32 B21B37/34 B21B37/08

    CPC分类号: B21B31/32 B21B37/34

    摘要: In a sheet rolling mill having work rolls and backup rolls, rolling of flat sheets is facilitated by controlling constant the transverse rigidity or deflection in the direction of width of rolls. The rolling force is detected, and based on the rolling force thus detected, the value for correcting the crown of the work roll is calculated by a transverse rigidity coefficient and a function determined by sheet thickness to control the transverse rigidity.

    摘要翻译: 在具有工作辊和支承辊的片材轧机中,通过控制辊的宽度方向上的横向刚性或挠曲的恒定性,便于平板的轧制。 检测轧制力,根据这样检测的轧制力,通过横向刚度系数和由板厚确定的功能来计算用于校正工作辊的凸度的值,以控制横向刚度。

    Hydraulic servomechanism
    9.
    发明授权
    Hydraulic servomechanism 失效
    液压伺服机构

    公开(公告)号:US4164167A

    公开(公告)日:1979-08-14

    申请号:US744106

    申请日:1976-11-22

    CPC分类号: G05D3/1445 F15B9/03

    摘要: Disclosed is a hydraulic servomechanism including a control loop consisting of an input device, an adder-amplifier, a servovalve, a cylinder or actuator and a load operatively connected in the order named for controlling the position of the load, a position feedback loop and an acceleration feedback loop. In one embodiment of the invention, the hydraulic servomechanism further includes a feedback loop wherein an output from an accelerometer or pressure sensor for detecting a differential pressure across a piston in the cylinder and an error signal from the adder-amplifier are arithmetically processed and fed back to the adder-amplifier. In another embodiment, the hydraulic servomechanism further includes an additional feedback loop wherein an output from a two-input adder to which are applied a signal representative of a supply pressure of working oil to be delivered from the servovalve to the cylinder and a signal representative of a pressure difference across a piston of the cylinder is arithmetically processed and fed back to a divider inserted between the adder-amplifier and the servovalve. In both embodiments, shocks are substantially eliminated in a hydraulic system.

    摘要翻译: 公开了一种液压伺服机构,包括由输入装置,加法器放大器,伺服阀,气缸或致动器组成的控制回路,以及以用于控制负载位置的顺序可操作地连接的负载,位置反馈回路和 加速度反馈回路。 在本发明的一个实施例中,液压伺服机构还包括反馈回路,其中来自加速度计或压力传感器的输出用于检测气缸中的活塞上的压差和来自加法器 - 放大器的误差信号被算术处理并反馈 到加法器放大器。 在另一个实施例中,液压伺服机构还包括附加的反馈回路,其中来自双输入加法器的输出被施加有代表从伺服阀输送到气缸的工作油的供给压力的信号,以及代表 圆柱体的活塞两端的压力差被算术处理并反馈到插入加法器 - 放大器和伺服阀之间的分压器。 在两个实施例中,在液压系统中基本上消除了冲击。

    Rolling mill
    10.
    发明授权
    Rolling mill 失效
    轧机

    公开(公告)号:US4145901A

    公开(公告)日:1979-03-27

    申请号:US880932

    申请日:1978-02-24

    IPC分类号: B21B37/46 B21B37/00

    CPC分类号: B21B37/46 B21B2275/05

    摘要: A rolling mill wherein a pair of upper and lower work rolls are rotated at different peripheral velocities with the peripheral velocity ratio being substantially equal to an elongation ratio at which a sheet metal is rolled, and the tensions exerted to the sheet metal entering and leaving the pair of work rolls are controlled in such a way that the velocity of the sheet metal entering the work rolls may be maintained equal to the peripheral velocity of one of the pair of work rolls which is rotated slower than the other while the velocity of said sheet metal leaving the work rolls may be maintained equal to the peripheral velocity of said the other work roll. Rolling may be accomplished without the need of wrapping the sheet metal around the work rolls, and the rolling pressure may be reduced to a degree comparable RD process.

    摘要翻译: 一种轧机,其中一对上下工作辊以不同的圆周速度旋转,圆周速度比基本上等于钣金轧制的伸长率,并且施加到钣金的张力进入和离开 控制一对工作辊,使得进入工作辊的金属板的速度可以保持等于一对工作辊中的一个工作辊之间的圆周速度,该工作辊的转速比另一个工作辊慢,同时所述板的速度 离开工作辊的金属可以保持等于所述另一个工作辊的圆周速度。 可以在不需要在工作辊周围包裹金属板的情况下实现轧制,并且轧制压力可以降低到可比RD工艺的程度。