Variable index drive apparatus
    1.
    发明授权
    Variable index drive apparatus 失效
    可变索引驱动装置

    公开(公告)号:US06363823B1

    公开(公告)日:2002-04-02

    申请号:US09100220

    申请日:1998-06-19

    Abstract: A machine, for example machine for cutting discrete sheets of material from a web, which includes a web supply and a processing station such as a cutoff station, is provided with a variable index drive operating feed structure for moving the web intermittently a predetermined but adjustable distance. The web is advanced intermittently and at which the frequency that varies in direct relation to the continuous speed of an input drive motor. The amount at which the web is fed during each cycle of the intermittent motion is settable by an operator by varying a continuous dial of a variable index drive. The variable index drive is a mechanical transmission having an index mechanism which produces a first intermittent output, a variable ratio unit connected at the output of the index mechanism for producing a second intermittent output having a speed that differs from the direct output of the index mechanism by the setting of the variable ratio unit, and a differential which produces a variable displacement in each cycle by combining the two outputs.

    Abstract translation: 一种机器,例如用于从卷筒纸切割分离的材料片的机器,其包括卷筒纸供应源和诸如切割台的处理站,设置有可变索引驱动操作进给结构,用于间歇地移动卷筒纸预定的可调节 距离。 网状物间歇地前进,频率与输入驱动电机的连续速度直接相关。 纸张在间歇运动的每个周期期间进给的量可由操作者通过改变可变索引驱动器的连续拨盘来设定。 可变索引驱动器是具有产生第一间歇输出的索引机构的机械传动装置,连接在索引机构的输出处的可变比单元,用于产生具有与索引机构的直接输出不同的速度的第二间歇输出 通过可变比单元的设置,以及通过组合两个输出在每个周期中产生可变位移的差分。

    Indexing and intermittent drive mechanism
    2.
    发明授权
    Indexing and intermittent drive mechanism 失效
    分度和间歇驱动机制

    公开(公告)号:US4096767A

    公开(公告)日:1978-06-27

    申请号:US779804

    申请日:1977-03-21

    Abstract: A control shaft extends through and is rotatable in a housing parallel to a stub shaft therein which has one end extending through one wall thereof. Within the housing are four bevel gears, one being keyed or fixed to the control shaft, a second rotatable on and relative to the control shaft, and the remaining two meshing with the first and second ones and carried on a block that is rotatable on and relative to the control shaft. The second bevel gear is keyed to the larger of a pair of meshing spur gears, such larger gear being rotatable relative to the control shaft and the smaller spur gear being fixed to the stub shaft. Respective discs are fixed on the adjacent ends of the two shafts, and articulated holding devices are operable to alternately hold and release the discs. An external arm adjacent the other end of the control shaft is coupled through the housing to the block, and such arm is reciprocally operable via an external, adjustable eccentric drive that is selectively settable for any desired angle through which the arm is to be stroked. Mechanism for alternately holding and releasing the discs is synchronized with the eccentric drive to effect holding of the stub shaft via its disc throughout one stroke of the arm to permit the control shaft to rotate, and to effect holding of the control shaft via its disc throughout the return stroke of the arm.

    Abstract translation: 控制轴延伸穿过平行于其中的短轴的壳体中并且可旋转,其中一端延伸穿过其一个壁。 在壳体内部有四个锥齿轮,一个键合或固定在控制轴上,另一个可在控制轴上并相对于控制轴旋转,其余两个与第一和第二齿轮啮合,并承载在可转动的 相对于控制轴。 第二锥齿轮被锁定到一对啮合正齿轮中较大的一个啮合正齿轮,这样大的齿轮可以相对于控制轴转动,较小的正齿轮固定在短轴上。 各个光盘固定在两个轴的相邻端上,并且铰接保持装置可操作以交替地保持和释放光盘。 与控制轴的另一端相邻的外臂通过外壳连接到该块上,并且该臂可经由外部可调节的偏心驱动器往复运动,该偏心驱动器可选择地设定为臂要被抚摸的任何所需的角度。 用于交替地保持和释放盘的机构与偏心驱动器同步,以在臂的整个行程中通过其圆盘实现短轴的保持,以允许控制轴旋转,并且通过其盘整体来实现控制轴的保持 手臂的返回行程。

    Workpiece indexing apparatus for machine tools
    3.
    发明授权
    Workpiece indexing apparatus for machine tools 失效
    机床工件分度装置

    公开(公告)号:US3906826A

    公开(公告)日:1975-09-23

    申请号:US45607574

    申请日:1974-03-29

    Inventor: MIDDENDORF ROY M

    Abstract: The disclosed example includes a punch press having a horizontal tooling plate to be indexed through 180* to index work from a load station to a work station, and return it. Two racks and pinions and an actuator are combined with a suitable eccentric linkage to provide a high mechanical advantage of the actuator over the tooling plate at the start and finish of indexing, and a high speed therebetween.

    Abstract translation: 所公开的示例包括冲压机,其具有水平加工板,其通过180度索引,以将工件从加载站索引到工作站,并将其返回。 两个齿条和小齿轮以及致动器与合适的偏心联轴器组合,以在分度开始和完成时提供致动器在加工板上的高机械优点,并且其间具有高速度。

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