Mold is a "step" hollow plastic injection stretch blow molding machine for emphasis. Development of the "step" hollow plastic injection stretch blow moulding machine injection molds the focus is the development of parison mold. Development of preform injection mold tooling materials focus, the design of hot runner nozzles and hot runner temperature control system. At present, China's "one step" injection stretch blow mold hollow plastic molding machines reach the level where technology, OEMs can cooperate with relevant foreign mold factory. As long as the mold to achieve the desired skills, coupled with our host, we can say, "Step" hollow plastic injection stretch blow molding machine is able to enter the market.
Focus on improving the speed molding. "Step" injection stretch blow molding hollow plastic molding machine main advantage is speed, so improving the speed of its pursuit of forming the main objective. French Side company whose model SBO-24DC stretching blow mold cavity number to 48, forming 0.5LPET production to 60,000 bottles / hour. The key is to improve the forming speed: optimizing heating system to reduce the heating time and improve the functioning of preform conveyor drive speed, fast and stable positioning to improve the performance of preforms, reducing blow mold opening and closing and clamping head down time, increase the number of molding cavities .
Preform quality testing equipment used. Preform quality testing equipment, domestic or blank. "Step" injection stretch blow moulding machine plastic hollow preform used mostly purchased, so the quality of preform molding rate determines the finished product. Improve the forming rate of the premise, must test the quality of preform. Germany Kro Juan nes developed a preform quality inspection device can detect preform the concentricity, diameter and so the quality of detection of 72,000 preforms per hour, the device can be installed after the automatic stacking units can also be installed Contiform hollow plastic molding machines in the cross-feed wheel.