"> Two-stage servovalve with compensatoin circuit to accommodate
    1.
    发明授权
    Two-stage servovalve with compensatoin circuit to accommodate "dead zone" d u 失效
    具有补偿电路的两级伺服阀由于重叠的卷轴瓣容纳“死区”

    公开(公告)号:US5165448A

    公开(公告)日:1992-11-24

    申请号:US749216

    申请日:1991-08-23

    申请人: Herbert Handte

    发明人: Herbert Handte

    IPC分类号: F15B13/043

    摘要: A two-stage flow-control electrohydraulic servovalve has a pilot-stage (14) and a second-stage valve spool (6) mounted for sliding movement relative to a body (1). The pilot-stage (14) is arranged to provide an output pressure, which is used to selectively displace the second-stage spool (6) relative to the body, to establish flow through the second-stage. The second-stage spool has a plurality of lobes, which are overlapped with respect to passageways communicating with the control ports (3,4). A spool position feedback servoloop is closed about the second-stage valve spool and the pilot-stage. The improvement provides a compensation circuit (21) for modifying the command signal (e.sub.c) so as to compensate for the "dead zone" in the normal second-stage flow-to-displacement characteristics, such that the second-stage output flow will be substantially proportional to the command signal.

    摘要翻译: 两级流量控制电动液压伺服阀具有安装成相对于主体(1)滑动移动的先导级(14)和第二级阀芯(6)。 先导级(14)被布置成提供输出压力,其用于相对于主体选择性地移动第二级线轴(6),以建立通过第二级的流量。 第二级阀芯具有多个叶片,其相对于与控制端口(3,4)连通的通道重叠。 阀芯位置反馈伺服环围绕第二级阀芯和先导级关闭。 该改进提供了一种用于修改指令信号(ec)的补偿电路(21),以补偿正常的第二级流到位移特性中的“死区”,使得第二级输出流将为 基本上与命令信号成正比。

    Self-adjusting ramp generator
    2.
    发明授权
    Self-adjusting ramp generator 失效
    自调整斜坡发生器

    公开(公告)号:US4268794A

    公开(公告)日:1981-05-19

    申请号:US7698

    申请日:1979-01-30

    摘要: Apparatus is provided for generating a self-adjusting saw-tooth wave in response to an input signal containing a plurality of successive start pulses separating time intervals of variable length. The apparatus includes an integrator for generating a ramp signal during each time interval, a comparator for comparing the value of the integrator output signal with a predetermined maximum value and for supplying, at the end of each time interval, the difference therebetween as a correction signal to modify the slope of the ramp signal generated during the next subsequent time interval. The slope of the ramp signal is adjusted to accommodate variations in length of successive time intervals so that the peak value of such ramp signals will equal a predetermined maximum value at the end of successive time intervals of equal length.

    摘要翻译: 提供了用于响应于包含分离可变长度的时间间隔的多个连续起始脉冲的输入信号而产生自调节锯齿波的装置。 该装置包括用于在每个时间间隔期间产生斜坡信号的积分器,用于将积分器输出信号的值与预定最大值进行比较的比较器,并且用于在每个时间间隔结束时将它们之间的差作为校正信号 以修改在下一个后续时间间隔期间产生的斜坡信号的斜率。 调整斜坡信号的斜率以适应连续时间间隔的长度的变化,使得在相等长度的连续时间间隔结束时,这种斜坡信号的峰值将等于预定的最大值。

    Mandrel-moving control circuit, and method
    3.
    发明授权
    Mandrel-moving control circuit, and method 失效
    人造移动控制电路和方法

    公开(公告)号:US5130630A

    公开(公告)日:1992-07-14

    申请号:US358694

    申请日:1989-05-26

    申请人: Herbert Handte

    发明人: Herbert Handte

    摘要: A control circuit (10) for an extrusion die (13) is operatively arranged to supply a command signal (e.sub.c) to an actuator (24,25) for controlling the movement of a mandrel (11) relative to a die head (12) as plasticized material is extruded through an orifice (14) to form a parison (15). The controller includes a memory (28) for receiving and storing a plurality of initial set points supplied from a keypad (29). A recalculation circuit (42) is operatively arranged to recalculate the magnitude of each set point according to the equation S.sub.n(r) =(S.sub.n(i) -G.sub.1)B+G.sub.2, where S.sub.n(r) is the recalculated value a particular set point, G.sub.1 is a first reference die gap, G.sub.2 is a second reference die gap, B is a scaling factor, and S.sub.n(i) is the corresponding initial set point stored in memory. The recalculation circuit is operatively arranged to supply each recalculated set point to the memory to replace the initial set point stored therein. The recalculated set points are supplied to the actuator, via an interpolator (30) for controlling movement of the mandrel during an extrusion cycle.

    摘要翻译: 用于挤出模具(13)的控制电路(10)可操作地布置成向命令信号(ec)提供用于控制心轴(11)相对于模头(12)的运动的致动器(24,25) 当塑化材料通过孔口(14)挤出以形成型坯(15)时。 控制器包括用于接收和存储从小键盘(29)提供的多个初始设定点的存储器(28)。 重新计算电路(42)可操作地布置成根据等式Sn(r)=(Sn(i)-G1)B + G2重新计算每个设定点的大小,其中Sn(r)是重新计算的值特定集合 点,G1是第一个参考管芯间隙,G2是第二个参考管芯间隙,B是一个比例因子,Sn(i)是存储在存储器中的对应的初始设定点。 重新计算电路可操作地布置成将每个重新计算的设定点提供给存储器以替换其中存储的初始设定点。 重新计算的设定点通过内插器(30)提供给致动器,用于在挤压循环期间控制心轴的运动。

    Electronic device for controlling the tool position of a machine tool
    4.
    发明授权
    Electronic device for controlling the tool position of a machine tool 失效
    用于控制机床的刀具位置的电子设备

    公开(公告)号:US4918612A

    公开(公告)日:1990-04-17

    申请号:US152133

    申请日:1988-02-04

    申请人: Herbert Handte

    发明人: Herbert Handte

    摘要: An apparatus for controlling the tool position in a machine tool, permitting position data and adjustment speed data to be altered without the operator having to consider the actual value of such data. The apparatus comprises an alteration memory adapted to have alteration data in the form of absolute values or percentages entered thereinto and to hold such data available for a subsequent calculation process involving the data relating to the tool position or adjustment speed, respectively.The calculation is automatically carried out with the aid of gating means within the apparatus. Alternatively possible is an overwriting of data with values entered without calculation.

    摘要翻译: 一种用于控制机床中的刀具位置的装置,允许改变位置数据和调节速度数据,而不需要考虑这些数据的实际值。 该装置包括适于以输入其中绝对值或百分比的形式具有变化数据的变更存储器,并且将这些数据分别保存在涉及与刀具位置或调节速度相关的数据的后续计算过程中。 借助于装置内的门控装置自动执行计算。 或者可能的是使用输入的值重写数据而不进行计算。

    Jig for storing adjustment positions
    5.
    发明授权
    Jig for storing adjustment positions 失效
    夹具用于存放调整位置

    公开(公告)号:US4265024A

    公开(公告)日:1981-05-05

    申请号:US135309

    申请日:1980-03-31

    申请人: Herbert Handte

    发明人: Herbert Handte

    IPC分类号: G05B19/06 G05B19/12 G01B5/20

    CPC分类号: G05B19/126

    摘要: A jig is provided for storing setting data of apparatus having a plurality of adjacent slidable setting members. The positions of the members relative to the frame and to each other determines the setting data of the apparatus. The jig includes a plurality of bars mounted on a frame for independent sliding movement relative thereto, and a set screw for releasably holding the bars in desired positions. Each bar has an end face arranged to be selectively contacted by an aligned setting member.

    摘要翻译: 设置有用于存储具有多个相邻的可滑动设定构件的设备的设置数据的夹具。 构件相对于框架和彼此的位置确定设备的设置数据。 夹具包括安装在框架上用于独立滑动运动的多个杆,以及用于将杆可释放地保持在期望位置的固定螺钉。 每个杆具有布置成由对准的固定构件选择性地接触的端面。

    Method and apparatus for regulating the speed of a conveyor
    6.
    发明授权
    Method and apparatus for regulating the speed of a conveyor 失效
    用于调节输送机速度的方法和装置

    公开(公告)号:US4224561A

    公开(公告)日:1980-09-23

    申请号:US21151

    申请日:1979-03-16

    申请人: Herbert Handte

    发明人: Herbert Handte

    摘要: An improved regulator is provided for varying the rotational speed of a screw conveyor arranged to supply material to a variable-volume chamber having a piston slidably mounted in a cylinder. The regulator produces a sum signal proportional to the algebraic sum of positive input signals reflecting the desired degree of chamber filling and the desired discharge volume, and negative input signals reflecting the actual filling volume and the actual degree of chamber filling. This sum signal is converted to a proportional time-dependent signal which is used to adjust the speed of the conveyor. The conveyor speed is increased or decreased by an amount depending on the magnitude and polarity of the sum signal. In use, the regulator practices an improved method of regulating the speed of a conveyor.

    摘要翻译: 提供一种改进的调节器,用于改变布置成将材料供应到具有可滑动地安装在气缸中的活塞的可变容积室的螺旋输送机的转速。 调节器产生与正输入信号的代数和成正比的和信号,其反映所需的腔室填充程度和期望的放电容积,以及反映实际填充体积和实际腔室填充程度的负输入信号。 该和信号被转换成比例时间相关信号,该信号用于调节输送机的速度。 输送机速度根据和信号的大小和极性而增加或减少一个量。 在使用中,调节器采用改进的调节输送机速度的方法。

    Signal generator
    7.
    发明授权
    Signal generator 失效
    信号发生器

    公开(公告)号:US4283637A

    公开(公告)日:1981-08-11

    申请号:US99644

    申请日:1979-12-03

    摘要: A control circuit is adapted to control the movement of a pintle relative to the die head of extrusion apparatus. A command signal is supplied to a signal generator, which produces a first output signal in the form of a series of continuous voltage triangles, and a second output signal in the form of unit pulses. An impedance matrix contains a plurality of potentiometers which may be remotely connected to a summing amplifier. The potentiometers are arranged in a numerical order. Odd-numbered potentiometers are supplied with the triangular output signal from the signal generator. Even-numbered potentiometers are supplied with the signal generator triangular output signal, but which has been phase-shifted by half the width of one triangle. The pulse output from the signal generator is supplied to a decoder, which successively connects pairs of numerically-adjacent potentiometers with the summing amplifier during overlapping time intervals. During the cycle of operation, only a pair of numerically-adjacent potentiometers will be connected to the summing amplifier at any point in time. The output of the summing amplifier is a control signal, which may be used to control the movement of a pintle relative to a die head.

    摘要翻译: 控制电路适于控制枢轴相对于挤压设备的模头的移动。 命令信号被提供给信号发生器,该信号发生器产生一系列连续电压三角形形式的第一输出信号和单位脉冲形式的第二输出信号。 阻抗矩阵包含多个可以远程连接到加法放大器的电位计。 电位器按数字顺序排列。 奇数电位器由信号发生器提供三角输出信号。 偶数电位器带有信号发生器三角输出信号,但已被相移一个三角形宽度的一半。 从信号发生器输出的脉冲被提供给解码器,该解码器在重叠的时间间隔期间连续地将数字相邻的电位器与加法放大器相连。 在操作周期中,只有一对数字相邻的电位器将在任何时间点连接到求和放大器。 加法放大器的输出是控制信号,其可用于控制枢轴相对于模头的移动。

    Control circuit adapted to control movement of a pintle relative to a
die head
    8.
    发明授权
    Control circuit adapted to control movement of a pintle relative to a die head 失效
    控制电路适于控制枢轴相对于模头的运动

    公开(公告)号:US4217635A

    公开(公告)日:1980-08-12

    申请号:US000507

    申请日:1979-01-02

    摘要: A control circuit is adapted to control the movement of a pintle relative to the die head of extrusion apparatus. A command signal is supplied to a signal generator, which produces a first output signal in the form of a series of continuous voltage triangles, and a second output signal in the form of unit pulses. An impedance matrix contains a plurality of potentiometers which may be remotely connected to a summing amplifier. The potentiometers are arranged in a numerical order. Odd-numbered potentiometers are supplied with the triangular output signal from the signal generator. Even-numbered potentiometers are supplied with the signal generator triangular output signal, but which has been phase-shifted by half the width of one triangle. The pulse output from the signal generator is supplied to a decoder, which successively connects pairs of numerically-adjacent potentiometers with the summing amplifier during overlapping time intervals. During the cycle of operation, only a pair of numerically-adjacent potentiometers will be connected to the summing amplifier at any point in time. The output of the summing amplifier is a control signal, which may be used to control the movement of a pintle relative to a die head.

    摘要翻译: 控制电路适于控制枢轴相对于挤压设备的模头的移动。 命令信号被提供给信号发生器,该信号发生器产生一系列连续电压三角形形式的第一输出信号和单位脉冲形式的第二输出信号。 阻抗矩阵包含多个可以远程连接到加法放大器的电位计。 电位器按数字顺序排列。 奇数电位器由信号发生器提供三角输出信号。 偶数电位器带有信号发生器三角输出信号,但已被相移一个三角形宽度的一半。 从信号发生器输出的脉冲被提供给解码器,该解码器在重叠的时间间隔期间连续地将数字相邻的电位器与加法放大器相连。 在操作周期中,只有一对数字相邻的电位器将在任何时间点连接到求和放大器。 加法放大器的输出是控制信号,其可用于控制枢轴相对于模头的移动。