Design And Realization Of Control System Of Injection Molding Machine Based On PLC

With the continuous development of the world’s scientific and technological level, our research in materials science growing influence, and continuously improve the performance parameters of plastic products, metal products makes many occasions directly replaced by plastic products, so as to achieve better economic efficiency, and promote the plastic products production machines constantly updated. Design a more efficient, environmentally friendly, precision injection molding machine, forming machine intelligence operations, injection molding machines consisting of automated production lines.On the implementation of the various parts of the injection molding machine control system composed of open-loop and closed-loop control mode control mode, respectively, can be adapted to different accuracy requirements of the occasion, especially computer technology, sensor technology development, so that the basic core of the PLC control system with considerable intelligence level, great room for development.Methods of software engineering topics from the development status and control functions starting injection molding machine control system, established injection molding machine control system design goals, and specific functional requirements and non-functional requirements of the system were analyzed.In order to achieve the specific analysis of the injection molding machine control tasks hydraulic control system design premise electrical system design to achieve security mode slow â†' fast mold clamping â†' Low Slow Slow Slow mold clamping â†' high pressure injection seat forward â†' slow bolus injection â†' â†'preformed packing anti salivation â†' slow injection mold retracted mold â†' slow â†' fast cycle out of the top of the cylinder task â†' Products top reset mode main line, plastic squeeze into the mold cavity, packing and cooling, the mold and the top of the product into the module, its working methods set manual operation, automatic operation, semi-automatic operation three operating modes to meet the control task needs.Design issues in the PLC hardware design, complete PLC peripheral input and output assignments, 1/0 wiring diagram. First draw in the software design flow chart control tasks, software design flow analysis and design ideas, then design manual and automatic control block diagram, ladder and design manual mode, the pump motor main circuit and the PLC program. Design features fully automatic mode for the realization of the detailed process design lines, sequential function chart, ladder program, configuration software, and so do a detailed analysis and design based on the analysis of a set of automatic control of the injection molding machine systems. System design software system based on the Gx-simulater software simulation debugging, technical processes by computer software test and analysis functions. And introduced Configuration software-based settings touchscreen basic method of operation.Judging from the test is designed to meet the mission requirements, to achieve the design of a "machine- electric- hydraulic" The combination of control systems for industrial products.