利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

103 条记录 (耗时 0.012 秒)

    Apparatus for controlling plasticizing process of in-line screw-type injection molding machine
    21.
    发明授权
    Apparatus for controlling plasticizing process of in-line screw-type injection molding machine 失效
    用于控制在线螺杆式注塑机塑化过程的设备

    公开(公告)号：US4326255A

    公开(公告)日：1982-04-20

    申请号：US231214

    申请日：1981-02-02

    申请人： Shigeru Fujita

    发明人： Shigeru Fujita

    IPC分类号： B29C45/76 ,  G05B19/07 ,  B29F1/06 ,  G06F7/66

    CPC分类号： G05B19/075 ,  B29C45/76 ,  B29C45/766

    摘要： In apparatus for controlling a plasticizing process of a resin of an in-line screw-type injection molding machine, a position of the screw is continuously detected in accordance with the movement thereof and a control function is determined on the basis of one of various factors, such as resin heating energy, shearing energy, injection pressure and filling speed, which determine a temperature distribution of a resin to be injected. The operating condition, particularly the number of revolutions and the back pressure of the screw, is controlled on the basis of the control function and the screw position so as to uniformalize the temperature distribution of the resin.

    摘要翻译： 在线性螺杆式注射成型机的树脂的塑化过程控制装置中，根据其螺杆的移动方向连续地检测螺杆的位置，并根据各种因素之一确定控制功能 ，例如树脂加热能量，剪切能量，注射压力和填充速度，其确定待注射的树脂的温度分布。 基于控制功能和螺杆位置来控制操作条件，特别是螺杆的转数和背压，以使树脂的温度分布均匀化。

    Process control apparatus for temperature control
    22.
    发明授权
    Process control apparatus for temperature control 失效
    温度控制过程控制装置

    公开(公告)号：US3922535A

    公开(公告)日：1975-11-25

    申请号：US8858870

    申请日：1970-11-12

    申请人： COURTAULDS ENG LTD

    发明人： RANDOLPH JOHN H

    IPC分类号： G05B19/07 ,  G05D23/20 ,  G05D23/00

    CPC分类号： G05B19/075 ,  G05D23/1904 ,  G05D23/20

    摘要： An apparatus for controlling the operation process of a physical system according to a predetermined operating cycle. The apparatus includes a digital register, a digital to analogue converter, and an integrator which produces a signal corresponding to the desired slope or change in said process. Another means is provided for generating a steady state signal indicating the end point of the change. A comparator is provided for comparing the integrated signal with the steady state signal for generating a compared signal for determining whether the steady state signal or the integrated signal will be coupled to the controller for controlling the operation thereof. The apparatus is also provided with a sign indicating means for generating a signal indicating the direction that the process is to be varied and means for causing the integrator to begin integrating at a value where it left off at the end of the previous cycle.

    摘要翻译： 一种用于根据预定操作周期来控制物理系统的操作过程的装置。 该装置包括数字寄存器，数模转换器和积分器，该积分器产生对应于所述过程中期望的斜率或变化的信号。 提供了另一种用于产生指示变化的终点的稳态信号的装置。 提供比较器，用于将积分信号与稳态信号进行比较，用于产生比较信号，用于确定稳态信号或积分信号是否将耦合到控制器以控制其操作。 该装置还设置有用于产生指示该过程将被改变的方向的信号的符号指示装置，以及用于使积分器开始积分的装置，该装置在上一个周期结束时停止的值。

    Sampling system for processing textile material in a wet condition
    23.
    发明授权
    Sampling system for processing textile material in a wet condition 失效
    在湿润条件下加工纺织材料的采样系统

    公开(公告)号：US3893010A

    公开(公告)日：1975-07-01

    申请号：US41331173

    申请日：1973-11-06

    申请人： KANEGAFUCHI SPINNING CO LTD

    发明人： ISHIZAWA KAZUTOMO ,  AKASHI TAKAHUNI ,  OTAKE SADAO

    IPC分类号： D06B21/02 ,  G05B19/07 ,  G05B21/02 ,  D06P1/00

    CPC分类号： G05B21/02 ,  D06B21/02 ,  G05B19/075

    摘要： A relay type feedback control method with sampling for controlling the wet processing of textile material, such as a dyeing process, comprises holding an output signal of an on-off control device by a zero-order holding device for a predetermined holding time and selectively changing the holding time at various sampling instants. The holding time is principally changed at each sampling instant in accordance with a preselected program so that input of the controlled process is capable of being adjusted to coincide with a predetermined trapezoidal program.

    摘要翻译： 一种具有用于控制诸如染色处理之类的纺织材料的湿加工的采样的继电器类型反馈控制方法包括：通过零级保持装置将开 - 关控制装置的输出信号保持预定的保持时间并选择性地改变 持有时间在各种抽样时刻。 保持时间主要根据预先选择的程序在每个采样时刻进行改变，使得受控处理的输入能够被调节以与预定的梯形程序一致。

    Beam current regulator for electron beam machines
    24.
    发明授权
    Beam current regulator for electron beam machines 失效
    电子束机的光束电流调节器

    公开(公告)号：US3838313A

    公开(公告)日：1974-09-24

    申请号：US36215273

    申请日：1973-05-21

    申请人： UNITED AIRCRAFT CORP

    发明人： ANDERSON H

    IPC分类号： G05B19/07 ,  G05F1/38 ,  G05F1/00 ,  H05B37/02

    CPC分类号： G05F1/38 ,  G05B19/075

    摘要： In an electron beam machine for welding or cuting a workpiece, the current produced by the electron gun is regulated by a beam regulating system to maintain a programmed value. A feedback voltage proportional to beam current is compared with a commanded voltage proportional to desired beam current, any difference therebetween in the form of an error voltage being used to vary the bias voltage of the electron gun and modify the beam current. A novel saturable reactor circuit permits the bias voltage which is at a high potential to be varied by a DC current which varies about ground level. A novel latch and hold circuit permits the beam current regulator to be bypassed when the electron gun filament is ''''peaked''''. A novel current adder circuit permits the automatic programming of multi-level beam currents.

    摘要翻译： 在用于焊接或切割工件的电子束机中，由电子枪产生的电流由光束调节系统调节以维持编程值。 与光束电流成比例的反馈电压与与期望的光束电流成比例的指令电压进行比较，其间以差分电压形式的差异用于改变电子枪的偏置电压并修改光束电流。 一种新颖的可饱和电抗器电路允许处于高电位的偏置电压由基于地电平变化的直流电流变化。 当电子枪灯丝“峰值”时，新颖的锁存和保持电路允许旁路电流调节器。 一种新颖的电流加法器电路允许对多电平束电流进行自动编程。

    Angiographic injector with pump motor starting control
    26.
    发明授权
    Angiographic injector with pump motor starting control 失效
    泵浦电机起动控制的血管注射器

    公开(公告)号：US3674009A

    公开(公告)日：1972-07-04

    申请号：US3674009D

    申请日：1970-07-13

    申请人： CORDIS CORP

    发明人： WILLIAMSON DONALD E

    IPC分类号： A61B6/00 ,  A61M5/172 ,  G05B19/07 ,  A61B5/02

    CPC分类号： A61B6/504 ,  A61B6/481 ,  A61M5/172 ,  G05B19/075

    摘要： The angiographic injector disclosed herein employs a pump motor which is gradually and progressively energized to prevent whipping of the catheter tip. The energization of the motor is varied as a function of a control signal voltage which rises relatively gradually, the motor being energized from an a.c. source through a triggerable semiconductor current switching device whose firing angle is varied as a function of the amplitude of the control signal voltage.

    摘要翻译： 本文公开的血管造影注射器采用逐渐地逐渐通电的泵马达，以防止导管末端的鞭打。 马达的通电作为控制信号电压的函数而变化，控制信号电压相对逐渐上升，电动机从一个交流电通电。 源极通过可触发的半导体电流开关器件，其触发角随着控制信号电压的幅度而变化。

    Temperature control circuits
    28.
    发明授权
    Temperature control circuits 失效
    温度控制电路

    公开(公告)号：US3566151A

    公开(公告)日：1971-02-23

    申请号：US3566151D

    申请日：1969-03-10

    申请人： PILKINGTON BROTHERS LTD

    发明人： WILBURN FREDERICK W

    IPC分类号： G05B19/07 ,  G05D23/22 ,  H01H35/00

    CPC分类号： G05B19/075 ,  G05D23/1906 ,  G05D23/1913 ,  G05D23/22 ,  Y10T307/773

    摘要： A circuit for controlling the heating current flowing through a load according to a predetermined temperature/time function includes a thyristor circuit which controls the power supplied to the load and a firing circuit for the thyristor circuit. The output from a thermocouple associated with the load is compared with a voltage representing a predetermined temperature/time function to produce a control output which is connected to the firing circuit.

    Programing mechanism
    29.
    发明授权
    Programing mechanism 失效
    编程机制

    公开(公告)号：US3553483A

    公开(公告)日：1971-01-05

    申请号：US3553483D

    申请日：1968-12-09

    申请人： COOK MACHINERY CO INC

    发明人： JARVIS JOHN R

    IPC分类号： B01D46/04 ,  D06F33/02 ,  G05B19/07 ,  H01J23/00 ,  H03K17/28

    CPC分类号： H01J23/005 ,  D06F33/02 ,  D06F2202/085 ,  D06F2204/02 ,  D06F2204/088 ,  D06F2212/00 ,  G05B19/075 ,  Y10T307/951

    摘要： A programming mechanism is disclosed for controlling the application of power to apparatus performing successive steps in a process. The mechanism includes an electronic timer for controlling the time period of each step. The timer includes an R-C timing circuit, the R-C constant of which may be adjusted to any suitable value for each different step of the process by connecting into the circuit a different R-C circuit element, such as a variable resistor for each step in the process that the circuit controls. For this purpose, a multisection, multiposition stepping switch is connected to the R-C timing circuit and a different variable resistor is connected to one or more of the terminals of the stepping switch so that as the switch is stepped to the next position a different R-C timing constant may be provided to control the time period of the electronic timer.