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    Reciprocating saw comprising a program-controlled feed conveyor for advancing the item to be cut
    1.
    发明授权
    Reciprocating saw comprising a program-controlled feed conveyor for advancing the item to be cut 失效
    往复式锯包括用于推进待切割物品的程序控制进料输送机

    公开(公告)号：US07032486B1

    公开(公告)日：2006-04-25

    申请号：US09674205

    申请日：2000-02-28

    申请人： Reinhold Mayr ,  Franz Diermaier

    发明人： Reinhold Mayr ,  Franz Diermaier

    IPC分类号： B23D51/04

    CPC分类号： B27B3/18 ,  B27B3/16 ,  B27B3/20 ,  Y10T83/4501 ,  Y10T83/4597 ,  Y10T83/6475 ,  Y10T83/6925

    摘要： The description refers to a mill saw with a saw gate (3) driven via a slider-crank drive (4), whose parallel saw blades (5), which cut in only one stroke direction, are provided with a bias, and with a feed conveyor (6) for the stock to be cut, which is driven intermittently during the cutting stroke of the saw gate (3) as a function of the cutting speed by means of at least one motor (10) separated from the slider-crank drive (4) and connected to a controlling system (12). To achieve favorable construction features, it is suggested that the controlling system (12) connected to a signal transmitter (17) for a preset position of rotation of the slider-crank drive (4) controls the motor (10) in dependence on the response of the signal transmitter (17) according to a stored control program for one conveying step adaptable to the respective stroke frequency of the slider-crank drive (4).

    摘要翻译： 该描述是指具有通过滑块 - 曲柄驱动器（4）驱动的锯门（3）的铣刀，其中仅在一个行程方向上切割的平行锯片（5）被设置有偏置，并且具有 用于根据切割速度在锯栅（3）的切割行程期间间歇地驱动的待切割的原料输送机（6），借助于与滑块 - 曲柄分离的至少一个马达（10） 驱动器（4）并连接到控制系统（12）。 为了实现有利的构造特征，建议连接到用于滑块 - 曲柄驱动器（4）的预设旋转位置的信号发射器（17）的控制系统（12）根据响应来控制电动机（10） 根据用于一个适应于滑块 - 曲柄驱动器（4）的相应行程频率的一个传送步骤的存储控制程序的信号发射器（17）。

    Hack sawing machine
    2.
    发明授权
    Hack sawing machine 失效
    劈锯机

    公开(公告)号：US4253365A

    公开(公告)日：1981-03-03

    申请号：US64284

    申请日：1979-08-06

    申请人： Mario Ragazzini

    发明人： Mario Ragazzini

    IPC分类号： B23D51/20

    CPC分类号： B23D51/20 ,  Y10T83/6915 ,  Y10T83/692 ,  Y10T83/6925 ,  Y10T83/6935 ,  Y10T83/70 ,  Y10T83/8876

    摘要： A hack sawing machine is disclosed, which comprises a base, a case, a shaft rotated by a motor, a saw blade bow guided in a sliding movement in the case, a drum cam which causes the blade to have an active forward stroke and a passive return stroke, a two-armed lever (bracket), eleastic means which, rotating the case, bring the blade back into the cut after the passive stroke and a hydraulic system. This system comprises a hydraulic cylinder, a hydraulic circuit having a hydraulic pump to pump oil to the cylinder. The hydraulic circuit acts to maintain a predetermined pressure of the saw blade bow on the workpiece during the active stroke and camming means cause the bow to be raised during the passive stroke.

    摘要翻译： 公开了一种黑色锯切机，其包括基座，壳体，由马达旋转的轴，在壳体中以滑动运动引导的锯条弓形，使得叶片具有主动向前冲程的滚筒凸轮和 被动返回行程，双臂杠杆（支架），旋转壳体的主要装置，在被动行程和液压系统后将刀片带回切口。 该系统包括液压缸，液压回路，其具有用于将油泵送到气缸的液压泵。 液压回路用于在主动行程期间保持锯片在工件上的预定压力，并且凸轮装置在被动冲程期间使弓抬升。