Modern plastic injection molding machines are typical systems integrating mechanics, electronics, and hydraulics. Due to their ability to mold complex products, require less post-processing, and process a wide variety of plastics, they have developed rapidly since their inception. Currently, over 80% of engineering plastic products worldwide are processed using injection molding machines. Traditional injection molding machines generally employ simple open-loop control, meaning they are controlled according to preset values. During the manufacturing process, parameters such as clamping force, cycle time, and temperature are preset and maintained by the machine during production. For example, mold temperature can be maintained by controlling the temperature of the heating fluid, and plasticizing temperature can be maintained by controlling the power of the external heating device. This control method is simple in structure but has poor anti-interference capabilities and relatively low control temperature. Currently, more injection molding machines use closed-loop control, which controls based on the deviation between online measured values ​​and set values. Closed-loop control systems employ negative feedback loops, providing strong anti-interference capabilities. When deviations occur in injection speed, injection pressure, mold cavity temperature, mold cavity pressure, melt temperature, and hydraulic pressure due to interference during production, the machine automatically corrects the interference through the control system. This control method boasts strong anti-interference capabilities and high control precision. A more advanced control method involves using computers, i.e., constructing a closed-loop real-time computer control system. To date, no Chinese injection molding machine company possesses its own injection molding machine control system; all directly purchase third-party control systems and install them on their machines. This strategy directly limits the technological sophistication of Chinese injection molding machines. Even if injection molding machine companies have their own injection process control technologies, it is difficult to implement them on third-party control systems because third-party control systems are unlikely to provide all control windows for company technicians to configure and modify. In contrast, major international injection molding machine companies (such as HUSKY, BATTENFELD, DEMAG, ENGEL, ARBURG, NETSTAL, DR.BOY, etc.) all possess their own injection molding machine control systems (PLC & HMI). Besides improving injection molding machine performance, protecting intellectual property, and enhancing competitive advantage, this also significantly enhances the company's innovation capabilities, especially in mechanical innovation. To achieve innovation in mechanical structures and other areas, a fully independent, flexible, and open control system is essential. We possess extensive experience in developing injection molding machine control systems. From the design of low-level control loops such as speed, position, pressure, tonnage, and temperature, to the design of human-machine interfaces, we can help clients achieve technological innovation. Our team includes core R&D personnel who have worked in HUSKY's Control Development Group for over ten years, and we have incorporated many functions from HUSKY's POLARIS control platform. We have a strong theoretical foundation and rich practical R&D experience in the design and improvement of injection molding machine control systems. We can provide assistance and services for everything from conceptual design, functional design, system architecture design, algorithm design, program and data structure design, code design, functional testing, system upgrades, special function additions, production system design, after-sales service, remote diagnostics, and machine debugging. The performance of an injection molding machine control system primarily depends on the process control algorithm, which is the core of the entire control system. --- Speed ​​control loop design-- Position control loop design (open loop or closed loop) --- Mold clamping tonnage control loop design-- Temperature control loop design (oil temperature control is also crucial for hydraulic systems) --- Pressure control loop design-- Effective and smooth switching between speed and pressure control-- Mold closing pressure protection control design-- Multi-segment smooth control curve generator design-- Control output linearization design-- Other system optimization designs Through the above designs, the injection molding machine production cycle is shortened, operation is stabilized, and efficiency is improved. A high-end injection molding machine control system should also have the following characteristics: A. High-quality products (Superior part quality) I. By adjusting system control parameters and using SPC analysis, the consistency and anti-interference of the control process are ensured, thereby optimizing product quality. II. Open software architecture, allowing for easy modification of control algorithms to improve product quality. B. Fast Cycle Time: I. Fast PLC program execution cycle; II. High-performance PC and fast I/O; III. Fast communication capabilities between control components; IV. Self-calibrating and adaptive control methods; V. Advanced control algorithms for various speeds, pressures, temperatures, etc., and energy-saving control strategies. C. User-friendly design and interface: I. Extensive use of meaningful and realistic icons for intuitive operation; II. Minimal button operation steps for fastest information retrieval; III. Single-button operation; IV. User-programmable functions; V. Clear and accurate alarm functions and online help; VI. Detailed operation event logging; The Human Interface Device (HMI) is the first part of a control system that faces the customer, and its quality directly affects the customer's evaluation of the entire control system. The HMI is the clothing of the control system. A good HMI should possess the following characteristics: — Flexible navigation design — User-level management — Free language switching — Free unit switching — Flexible operation button design — Alarm/event display and storage — Historical data recording and management — Report generation and printing — SPC function — Real-time process data curve display — Production cycle breakdown analysis — Control parameter upload/download/copy — Operator personal data storage — Online assistance. We are willing to provide consulting services for the development and improvement of injection molding machine control systems to injection molding machine manufacturers in China, including: A. Improving the control algorithms of their injection molding machines to increase work efficiency; B. Object-oriented software structure and program development for control system PLCs and HMIs; C. Humanized, user-friendly, easy-to-operate, and intuitive HMI design and consulting; D. Development of a human-machine interface for DHMI based on DRAGONFLY.