Offset web-fed rotary printing machine
    1.
    发明授权
    Offset web-fed rotary printing machine 失效
    胶版卷筒纸旋转印刷机

    公开(公告)号:US4724763A

    公开(公告)日:1988-02-16

    申请号:US930209

    申请日:1986-11-14

    CPC分类号: B41F13/0008 F16F15/02

    摘要: An offset web-fed rotary printing machine having a plurality of in line printing couples generates torsionsal oscillations. These torsional oscillations are damped by applying a counteracting torsional moment to a free end of drive shaft assembly for the printing couples. The magnitude of the counteracting torsional moment is determined in response to the magnitude of the torsional oscillation moment which is measured by a torque measuring shaft. Damping of the torsional oscillation improves printing quality and press operational speed.

    摘要翻译: 具有多个在线印刷对的偏移卷筒纸旋转印刷机产生扭转振荡。 通过对打印对的驱动轴组件的自由端施加反作用力矩来阻尼这些扭转振荡。 响应于由扭矩测量轴测量的扭转振动力矩的大小来确定抵消力矩的大小。 扭转振动的阻尼提高了印刷质量和印刷操作速度。

    Method for judging printing sheets
    3.
    发明授权
    Method for judging printing sheets 失效
    判断印张的方法

    公开(公告)号:US5317390A

    公开(公告)日:1994-05-31

    申请号:US925273

    申请日:1992-08-06

    摘要: Individual printed image elements from an image to be inspected are allotted individual nominal ink density values, as by scanning an ideal printed sheet by a CCD matrix camera. The ideal values are stored in a main memory having segments for maximum and minimum values for each image element. A multiplicity of proof images are scanned, and their density values measured and stored for each proof judged acceptable by an inspector. Thereafter, the variations in the acceptable proof density values are stored in the main memory as maximum and minimum acceptable deviations from the initial nominal values for each individual image element to provide a subjective tolerance value for the nominal density values in the main memory.

    摘要翻译: 通过CCD矩阵摄像机扫描理想的印刷片材,从被检查的图像中分配单独的印刷图像元素以分配单独的标称墨水浓度值。 理想值存储在具有用于每个图像元素的最大值和最小值的段的主存储器中。 扫描多个证明图像,并且由检查者对每个证据进行测量和存储的密度值被判断为可接受。 此后,可接受的验证密度值的变化被存储在主存储器中,作为对于每个单独的图像元素的初始标称值的最大和最小可接受的偏差,以提供主存储器中的标称密度值的主观公差值。

    Control mechanism to disable driven ink metering elements in rotary
printing machines
    4.
    发明授权
    Control mechanism to disable driven ink metering elements in rotary printing machines 失效
    禁止旋转印刷机中的驱动墨水计量元件的控制机构

    公开(公告)号:US4508034A

    公开(公告)日:1985-04-02

    申请号:US575726

    申请日:1984-02-02

    摘要: A control mechanism for disabling selected driven ink metering elements in rotary printing machines from a central remote control station is disclosed. The control includes plural command switches which are operated to provide control signal inputs to a programmable microprocessor. The microprocessor is connected to the drive circuits for the individual ink metering elements to position them in response to the selected control signals to increase or decrease the amount of ink supplied by each element individually or jointly, and to disable selected ink metering elements by moving them to a zero position so as to select the width of the printing area.

    摘要翻译: 公开了一种用于禁止来自中央遥控站的旋转印刷机中选定的驱动墨水计量元件的控制机构。 该控制包括多个命令开关,其被操作以向可编程微处理器提供控制信号输入。 微处理器连接到用于各个墨水计量元件的驱动电路以响应于所选择的控制信号来定位它们,以逐个或共同地增加或减少由每个元件供应的墨的量,并且通过移动它们来禁用所选择的墨水计量元件 到零位置,以便选择打印区域的宽度。

    Print unit damage prevention assembly
    5.
    发明授权
    Print unit damage prevention assembly 失效
    打印单元损坏预防装配

    公开(公告)号:US5588364A

    公开(公告)日:1996-12-31

    申请号:US444363

    申请日:1995-05-18

    CPC分类号: B41F33/00 B41F33/18

    摘要: An arrangement for preventing damage to print units, in which during a failure of the electrical supply of the web-fed rotary printing press, an energy reservoir yields its energy to control means which briefly charge adjusting means to bring at least one cylinder per print unit into a neutral pressure release position. In this way paper wrap-arounds during voltage failure no longer act in a manner damaging to the press.

    摘要翻译: 一种用于防止损坏打印单元的装置,其中在卷筒纸馈送的旋转印刷机的电力供应故障期间,能量储存器产生其能量以控制装置,其控制装置,其短暂地对调节装置充电以使每个印刷单元至少一个气缸 进入中性压力释放位置。 以这种方式,电压故障期间的纸张环绕不再以对印刷机有损害的方式起作用。

    Method for quality control of printed sheets
    6.
    发明授权
    Method for quality control of printed sheets 失效
    印刷品质量控制方法

    公开(公告)号:US5384859A

    公开(公告)日:1995-01-24

    申请号:US926699

    申请日:1992-08-10

    摘要: Individual printed image elements from an image to be inspected are allotted individual nominal ink density values, as by scanning an ideal printed sheet by a CCD matrix camera. The ideal values are stored in a main memory having segments for average, or grey, values for each image element. A multiplicity of proof images are scanned, and their density values measured and stored for each proof judged acceptable by an inspector. Thereafter, the variations in the acceptable proof density values are stored in the main memory as maximum and minimum acceptable deviations from the initial nominal values for each individual image element to provide a subjective tolerance value for the nominal density values in the main memory.

    摘要翻译: 通过CCD矩阵摄像机扫描理想的印刷片材,从被检查的图像中分配单独的印刷图像元素以分配单独的标称墨水浓度值。 理想值存储在具有用于每个图像元素的平均值或灰度值的段的主存储器中。 扫描多个证明图像,并且由检查者对每个证据进行测量和存储的密度值被判断为可接受。 此后,可接受的验证密度值的变化被存储在主存储器中,作为对于每个单独的图像元素的初始标称值的最大和最小可接受的偏差,以提供主存储器中的标称密度值的主观公差值。

    Edge location measuring head
    7.
    发明授权
    Edge location measuring head 失效
    边缘位置测量头

    公开(公告)号:US4680806A

    公开(公告)日:1987-07-14

    申请号:US745047

    申请日:1985-06-17

    CPC分类号: B41F13/12 B65H9/20 G01B11/028

    摘要: A measuring head for detecting the location of an object such as a moving sheet of paper is disclosed. An elongated sensor having multiple light-sensitive elements is located perpendicular to the path of the object. A source of light is directed at the sensor, and those light-sensitive elements which are not in the shadow of the object produce a high output, while those in the shadow produce a low output. Circuit means are provided to provide a count of the elements and to store the count corresponding to the transition between the high and low values. This stored count, which represents the location of the object, is then displayed.

    摘要翻译: 公开了一种用于检测诸如移动的纸张之类的物体的位置的测量头。 具有多个感光元件的细长传感器垂直于物体的路径定位。 光源指向传感器,并且不在物体阴影中的那些感光元件产生高输出,而阴影中的那些光敏元件产生低输出。 提供电路装置以提供元件的计数并存储对应于高值和低值之间的转换的计数。 然后显示表示对象的位置的存储的计数。