Abstract
This text expatiated the physics function of the hot the plastics of plastic, analyzing the plastics weld the inside temperature, pressure, time. Parameter to connect the influence of the quantity to the , introducing to butt fusion welding machine basic to constitute and work the principle. The point inquiried into the plastics to connect the welding machine liquid press the system gathers turn the design with puts with the PID into practice the temperature control, guaranteeing the welding quantity of the plastics piping. It is also about the development of plastic pipe butt fusion welding machine system，introducing the basic structure and the working principle butt fusion welding machine. Parameters of butt fusion welding of plastic pressure-pipe are different for varying pipe diameters and ambient conditions, and it is also affected by personal factor. Therefore, in this paper, four stages of the welding process were driven and the welding compress inforce was supplied by hydraulic system. In order to remove human element to improve the welding quality,the welding temperature，time and operation of hydraulic cylinder were controlled by IPC, and welding parameters were selected andadjusted automatically according to pipe parameters and ambient conditions. The main task is to design the size of control counter, to optimize the space. Complete control circuit design, selection of a reasonable electrical components, to minimize costs, most optimized. Then compiler control interface procedures and drive module programmr.
Keywords: Pressurized plastic pipe；Butt fusion welding machine ；Control system
Control counter；Circuit design；Interface program
