With the improvement of the level of the injection molding process, plastic products production and life in an increasingly important role played by

With the improvement of the level of the injection molding process, plastic products in the production of life plays an increasingly important role. When production of large plastic products, commonly used multi-gate hot runner injection mold structure, but because of the structural complexity of the mold cavity is filled with difficult balance, and the number of weld marks more severely affect the quality of  Instrument valve manifolds  and mechanical properties of large plastic parts . To solve this problem, it is proposed a new method based on timing control large plastic molding technique, the method using multi-gate hot runner injection molding sequence control, namely the original hot runner injection molding machine based on the installation configuration software-controlled hydraulic circuit, multi-gate sequence control system, so that each gate in the injection  High pressure ball valve  effluent streams branching step by step, to achieve a "dynamic feeding" can be a better solution to the existence of the mold of traditional production cavity filling is not balanced, the number of weld marks and other shortcomings, which breaks through the limitations of conventional injection molding, has a very important significance in a large plastic parts production.