The computing power and system design of recent custom designed control systems makes possible the application of modern control theory in injection molding machines to achieve new standards of performance without expensive, special purpose equipment. The new line of controls from the Van Dorn Demag Corporation uses digital filters, state transition logic, and high order temperature state control to more accurately control the molding machine process. The use of digital filters together with state transition logic reduces the controller response time latency, improves cycle to cycle repeatability, and predicts future positions of the molding machine clamp for use in clamp braking. The temperature state control system uses real time mathematical modeling of the barrel and tracking of estimated thermal disturbances to better control the barrel temperature. These techniques are applied to a wide variety of injection molding machine types and sizes and can be done in a way which makes the programming and operation of the machines less difficult than with traditional methods.
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机译：最近定制设计的控制系统的计算电力和系统设计使得现代控制理论在注塑机中的应用成为可能，以实现新的性能标准，无需昂贵，专用设备。 Van Dorn Demag Corporation的新型控制线采用数字滤波器，状态过渡逻辑和高阶温度状态控制来更准确地控制成型机过程。使用数字滤波器与状态转换逻辑一起降低控制器响应时间延迟，改善了循环以循环可重复性，并预测模塑机夹具的未来位置，以用于夹具制动。温度状态控制系统使用实时数学建模桶和估计的热干扰跟踪，以更好地控制桶温度。这些技术适用于各种喷射成型机类型和尺寸，并且可以以一种方式进行，使得机器的编程和操作不如传统方法的困难。
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