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Interpretation of the use of plastic machinery products

Due to the common plastic machinery control is relatively simple, but most machines are stand-alone operation, subject to the conditions of mechanical reliability level, plastic machinery to the reliability of the control system request is not too high, so the embedded product development special controller can meet the needs of the vast majority of users, has great advantage in price, and thus in widely used in the industry, especially in injection molding machine is widely used, application in blow molding equipment has a high proportion. On extrusion equipment, due to the high reliability, short development cycle of PLC and mature application, the application of PLC to occupy the dominant position. Brands are currently in use in the industry more PLC of Siemens, Omron, Mitsubishi, NAIS, LG, etc. Siemens provides a series of plastic machinery controller based on PLC.

With the development of plastics machinery technology, the controller is not a simple movement control, but including melt temperature, injection pressure, injection rate, holding time, cooling process and various parameters of the hydraulic circuit of integrated control. Most use open loop control in the past, at present is to develop in the direction of closed loop control. New equipment to the controller's control ability and response speed have the further requirements, the traditional controller based on embedded products is difficult to meet these requirements, so the new type of equipment and large equipment is given priority to with PLC. This with PLC used on high-end and large equipment, special controller used on low-end equipment status over the next three years will not change in the plastic machinery industry. Competitive price is one of the largest general plastics machinery controller market enter the number of the premise.


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