The System Design And Researches For The New Energy-saving Plastic Equipment

Along with the development of semiconductor packaging technology, the semiconductors'encapsulation technology level has been further improvement, the plastic package equipment as another important component promotes the development of encapsulation industries, the performance improvement of the encapsulation machine has been attention by people.In the plastic industry people eager to have a kind of plastic machine that is cheap, low energy consumption, reliable performance, convenient using and management, this the new energy-saving plastic equipment not only has the theoretical significance but also has the using value.Based on the existing plastic machine performance and working condition analysis, that existing plastic machine in actual working process, the most energy lost in the closing mould and keeping pressure process. The existing plastic machine system has high pressure, complex hydraulic loop, the current plastic machine adopts pure hydraulic cylinder as actuators to due to these problems, and the special hydraulic cylinder increased cost. This paper put forward a new kind of compound die mechanism which is a combination of the link mechanism and hydraulic, and design of a new energy-saving plastic equipment. The specific work is as follows:Firstly, the paper generalized the working principle of the semiconductors encapsulation machine and several existing saving-energy method, summarized the advantages and disadvantages of these methods. Taken compound die pressure 200t semiconductor plastic package equipment for example, and analysed its energy consumption and the saving energy efficiency of the traditional equipment with the inverter.Secondly, put forward a new kind of compound die mechanism which is a combination of the connecting rod mechanism and hydraulic.Used SolidWorks to establish the mathematical modeling and simulation and to analyse the stress, displacement and deformation for its main force parts (platform, connecting rods). The author designed the hydraulic system for the new actuators, and choose the hydraulic components (hydraulic pump, hydraulic valves and accumulator, etc) for the hydraulic system.Finally, Thanks to the new design of the system performance analysis of the following conclusions are obtained:(1) The new equipment system working pressure decreased in half. This makes the leakage of hydraulic oil greatly reduce; (2) Through the calculation the author got the energy consumption less than 45%, achieve the purpose of saving energy; (3) Through the calculation for the calorific capacity and the heat dissipating capacity of the hydraulic system, draw the system's calorific value below the heat emission value; (4) Because of the new plastic equipment itself has the superiority of the institutions and the performance, it make the manufacturing cost is reduced greatly, it has the great significance for the plastic industry.